diff --git a/Chapter01/01_web.js b/Chapter01/01_web.js new file mode 100644 index 0000000..872e76e --- /dev/null +++ b/Chapter01/01_web.js @@ -0,0 +1,14 @@ +var http = require("http"); + +function process_request(req, res) { + var body = 'Thanks for calling!\n'; + var content_length = body.length; + res.writeHead(200, { + 'Content-Length': content_length, + 'Content-Type': 'text/plain' + }); + res.end(body); +} + +var s = http.createServer(process_request); +s.listen(8080); diff --git a/Chapter01/02_debug.js b/Chapter01/02_debug.js new file mode 100644 index 0000000..90b3bc6 --- /dev/null +++ b/Chapter01/02_debug.js @@ -0,0 +1,18 @@ + +var http = require("http"); + +var s = http.createServer(function (req, res) { + var body = 'Thanks for calling!\n'; + var content_length = body.lengtth; + res.writeHead(200, { + 'Content-Length': content_length, + 'Content-Type': 'text/plain' + }); + res.end(body); +}); + +/** + * Now run the server, listening on port 8080 + */ +s.listen(8080); + diff --git a/Chapter01/debugging.js b/Chapter01/debugging.js new file mode 100644 index 0000000..9a00864 --- /dev/null +++ b/Chapter01/debugging.js @@ -0,0 +1,14 @@ +var http = require("http"); + +function process_request(req, res) { + var body = 'Thanks for calling!\n'; + var content_length = body.lenggth; + res.writeHead(200, { + 'Content-Length': content_length, + 'Content-Type': 'text/plain' + }); + res.end(body); +} + +var s = http.createServer(process_request); +s.listen(8080); diff --git a/Chapter02/arguments.js b/Chapter02/arguments.js new file mode 100644 index 0000000..9ec00ff --- /dev/null +++ b/Chapter02/arguments.js @@ -0,0 +1,76 @@ + + + + + +function Shape () { +} + +Shape.prototype.X = 0; +Shape.prototype.Y = 0; + +Shape.prototype.move = function (x, y) { + this.X = x; + this.Y = y; +} +Shape.prototype.distance_from_origin = function () { + return Math.sqrt(this.X*this.X + this.Y*this.Y); +} +Shape.prototype.area = function () { + throw new Error("I'm not a real shape yet"); +} + +var s = new Shape(); +s.move(10, 10); +console.log(s.distance_from_origin()); + + +function Square() { +} + +Square.prototype = new Shape(); +Square.prototype.__proto__ = Shape.prototype; +Square.prototype.Width = 0; + +Square.prototype.area = function () { + return this.Width * this.Width; +} + +var sq = new Square(); +sq.move(-5, -5); +sq.Width = 5; +console.log(sq.area()); +console.log(sq.distance_from_origin()); + + +function Rectangle () { +} + +Rectangle.prototype = new Square(); +Rectangle.prototype.__proto__ = Square.prototype; +Rectangle.prototype.Height = 0; + +Rectangle.prototype.area = function () { + return this.Width * this.Height; +} + + +var re = new Rectangle(); +re.move(25, 25); +re.Width = 10; +re.Height = 5; +console.log(re.area()); +console.log(re.distance_from_origin()); + + +console.log(typeof s); +console.log(typeof sq); +console.log(typeof re); + +console.log(sq instanceof Square); +console.log(sq instanceof Shape); +console.log(sq instanceof Rectangle); +console.log(re instanceof Rectangle); +console.log(sq instanceof Square); +console.log(sq instanceof Shape); +console.log(sq instanceof Date); diff --git a/Chapter02/arrays.js b/Chapter02/arrays.js new file mode 100644 index 0000000..149fd55 --- /dev/null +++ b/Chapter02/arrays.js @@ -0,0 +1,100 @@ + +var car1 = []; +var car2 = new Array(); +var car3 = new Array(10); +var car4 = new Array(4, 34, 6, 8, 525, 8693, 281, 88, 28, 95, 346); + + +// creating +var arr1 = []; +// set values + +for (var i = 0; i < 10; i++) { + arr1[i] = i; +} + +// fills in undefined +arr1.length = 20; +arr1[20] = "new value"; + +console.log(arr1.length); +console.log(arr1[0]); +console.log(arr1); + + +// set values with string index +var arr2 = []; + +arr2["cat"] = "meow"; +arr2["dog"] = "woof"; + +console.log(arr2.length); +console.log(arr2[0]); +console.log(arr2); + + + +// mixed indexes (bad idea) +var arr3 = []; + +arr3[2] = 2; +arr3[3] = 3; +arr3["horse"] = "neigh"; +arr3["狗"] = "王"; + + +console.log(arr3.length); +console.log(arr3[0]); +console.log(arr3); + + + +// multi-dimensional +//var arr4 = [][]; not ok +//var arr5 = [3][3]; // not ok + +// to create a 3x3 + +var tx3A = new Array(new Array(3), new Array(3), new Array(3)); +var tx3B = []; + +for (var i = 0; i < 3; i++) { + tx3B[i] = new Array(3); +} + + +console.log(tx3A); +console.log(tx3B); + + + +// why use arrays when objects contain much of the same functionality: V8 optmises heavily, extra operations slice(), push pop, shift, unshift + + +// key operations push pop +// shift unshift + + +var random = new Array(1, 342, 53, 38, 85958, 3584934, 8459, 2, 69, 1396, 146, 194); + + +// print squares +random.forEach(function (element, index, array) { + console.log(element + "^2 = " + element * element); +}); + + +var squares = random.map(function (element, index, array) { + return element * element; +}); +console.log(squares); + +var evens_only = random.filter(function (element, index, array) { + return (element % 2) == 0; +}); +console.log(evens_only); + + + +console.log(random.join(", ")); + diff --git a/Chapter02/global.js b/Chapter02/global.js new file mode 100644 index 0000000..0394c65 --- /dev/null +++ b/Chapter02/global.js @@ -0,0 +1,13 @@ + + + +function printit(var_name) { + console.log(global[var_name]); +} + +global.fish = "swordfish"; +global.pet = "cat"; + +printit("fish"); +printit("pet"); +printit("fruit"); diff --git a/Chapter02/objects.js b/Chapter02/objects.js new file mode 100644 index 0000000..c9db873 --- /dev/null +++ b/Chapter02/objects.js @@ -0,0 +1,5 @@ + + +var obj1 = {}; +var obj2 = new Object(); + diff --git a/Chapter02/test.js b/Chapter02/test.js new file mode 100644 index 0000000..4110d0e --- /dev/null +++ b/Chapter02/test.js @@ -0,0 +1,9 @@ + + +var arr = []; + +arr[0] = 1; +arr[1] = 2; +arr["cat"] = 'meow'; + +console.log(arr.length); \ No newline at end of file diff --git a/Chapter02/trycatch.js b/Chapter02/trycatch.js new file mode 100644 index 0000000..8050b05 --- /dev/null +++ b/Chapter02/trycatch.js @@ -0,0 +1,16 @@ + + +function uhoh () { + throw new Error("Something bad happened!"); +} + +try { + uhoh(); +} catch (e) { + console.log("I caught an error: " + e.message); +} + +console.log("program is still running"); + + + diff --git a/Chapter02/types.txt b/Chapter02/types.txt new file mode 100644 index 0000000..77a1fab --- /dev/null +++ b/Chapter02/types.txt @@ -0,0 +1,67 @@ +BASIC TYPES: + + +there are several core types: + +numbers, strings, booleans, functions, objects + +null, undefined are actually both types, although just particular instances of objects, and arrays a special case of objects. + +if we have a variable in javascript, type is + +typeof x + +note arrays will return 'object'. see section on arrays. + + + +NUMBERS + +- 64bit double precision floating point numbers -- there are no "integer" types in javascript. +- that means you have 53 bits of precision. +- if you are going to represent 64bits in javascript, use strings or separate library +- if you're doing math ops on floating point numbers, be careful + - 0.1 + 0.2 != 0.3 +- integer numbers < 53 bits will be great because they can be exactly rep'd +- dividing by zero gives you (-)Infinity +- you can convert strings to numbers with parseInt or parseFloat + - if they fail, return NaN + - isNaN +- can test for a "valid" number with isFinite() + + + +BOOLEANS: + +- can have the value true or false +- you can force things to boolean with the Booelan(XXX) function, but rarely necessary + + +STRINGS: + +- strings are sequences of unicode characters +- great for most characters around the world +- no separate character data type -- can just use 1-char strings +- to get the length, jut use .length +var s = "my string"; +console.log(s.length); +// or +console.log("my string".length); + +many interesting functions on strings: + +int str.indexOf("there"); +string "hello there".slice(5, 6) == " " // true +string "hello there".substr(5, 1) == " " // true +array "1,2,3,4,5".split(",") + + + +null is a special value indicates non-value +undefined means no such thing or no value set yet + +var x; +-> undefined +console.log(x); +-> undefined + diff --git a/Chapter03/01_php_example.php b/Chapter03/01_php_example.php new file mode 100644 index 0000000..308709c --- /dev/null +++ b/Chapter03/01_php_example.php @@ -0,0 +1,7 @@ +$file = fopen('info.txt', 'r'); +// wait until file is open + +$contents = fread($file, 100000); +// wait until contents are read + +// do something with those contents diff --git a/Chapter03/02_settimeout.js b/Chapter03/02_settimeout.js new file mode 100644 index 0000000..a1264a6 --- /dev/null +++ b/Chapter03/02_settimeout.js @@ -0,0 +1,7 @@ + +setTimeout(function () { + console.log("I've done my work!"); +}, 2000); + + +console.log("I'm waiting for all my work to finish."); diff --git a/Chapter03/03_async_bad.js b/Chapter03/03_async_bad.js new file mode 100644 index 0000000..c9857b1 --- /dev/null +++ b/Chapter03/03_async_bad.js @@ -0,0 +1,20 @@ +var fs = require('fs'); + +var file; +var buf = new Buffer(100000); + +fs.open( + 'info.txt', 'r', + function (err, handle) { + file = handle; + } +); + +fs.read( + file, buf, 0, 100000, null, + function (err, length) { + console.log(buf.toString()); + fs.close(file, function () { /* don't care */ }); + } +); + diff --git a/Chapter03/04_async_good.js b/Chapter03/04_async_good.js new file mode 100644 index 0000000..25ef76a --- /dev/null +++ b/Chapter03/04_async_good.js @@ -0,0 +1,16 @@ + +var fs = require('fs'); + +fs.open( + 'info.txt', 'r', + function (err, handle) { + var buf = new Buffer(100000); + fs.read( + handle, buf, 0, 100000, null, + function (err, length) { + console.log(buf.toString('utf8', 0, length)); + fs.close(handle, function () { /* don't care */ }); + } + ); + } +); diff --git a/Chapter03/05_async_with_error_handling.js b/Chapter03/05_async_with_error_handling.js new file mode 100644 index 0000000..1a4d8be --- /dev/null +++ b/Chapter03/05_async_with_error_handling.js @@ -0,0 +1,27 @@ + + +var fs = require('fs'); + +fs.open( + 'info.txt', 'r', + function (err, handle) { + if (err) { + console.log("ERROR: " + err.code + " (" + err.message + ")"); + return; + } + var buf = new Buffer(100000); + fs.read( + handle, buf, 0, 100000, null, + function (err, length) { + if (err) { + console.log("ERROR: " + err.code + + " (" + err.message + ")"); + return; + } + console.log(buf.toString('utf8', 0, length)); + fs.close(handle, function () { /* don't care */ }); + } + ); + } +); + diff --git a/Chapter03/06_errors_async.js b/Chapter03/06_errors_async.js new file mode 100644 index 0000000..8f60bdc --- /dev/null +++ b/Chapter03/06_errors_async.js @@ -0,0 +1,11 @@ + + +try { + setTimeout(function () { + throw new Error("Uh oh, something bad!"); + }, 2000); +} catch (e) { + console.log("I caught the error: " + e.message); +} + + diff --git a/Chapter03/07_this_self_error.js b/Chapter03/07_this_self_error.js new file mode 100644 index 0000000..d829012 --- /dev/null +++ b/Chapter03/07_this_self_error.js @@ -0,0 +1,44 @@ + +var fs = require('fs'); + +function FileObject () { + + this.filename = ''; + + this.file_exists = function (callback) { + if (!this.filename) { + var e = new Error("invalid_filename"); + e.description = "You need to provide a valid filename"; + callback(e); + return; + } + + console.log("About to open: " + this.filename); + fs.open(this.filename, 'r', function (err, handle) { + if (err) { + console.log("Can't open: " + this.filename); + callback(null, false); + return; + } + + console.log("can open: " + this.filename); + fs.close(handle, function () { }); + callback(null, true); + }); + }; +} + +var fo = new FileObject(); +fo.filename = "file_that_does_not_exist"; + +fo.file_exists(function (err, results) { + if (err) { + console.log("WAT: " + JSON.stringify(err)); + return; + } + + console.log(results ? "file exists!!!" : "bummer!"); +}); + + + diff --git a/Chapter03/08_this_self_fixed.js b/Chapter03/08_this_self_fixed.js new file mode 100644 index 0000000..c70dafd --- /dev/null +++ b/Chapter03/08_this_self_fixed.js @@ -0,0 +1,45 @@ + +var fs = require('fs'); + +function FileObject () { + + this.filename = ''; + + this.file_exists = function (callback) { + var self = this; + + if (!this.filename) { + var e = new Error("invalid_filename"); + e.description = "You need to provide a valid filename"; + callback(e); + return; + } + + console.log("About to open: " + self.filename); + fs.open(this.filename, 'r', function (err, handle) { + if (err) { + console.log("Can't open: " + self.filename); + callback(null, false); + return; + } + + fs.close(handle, function () { }); + callback(null, true); + }); + }; +} + +var fo = new FileObject(); +fo.filename = "file_that_does_not_exist"; + +fo.file_exists(function (err, results) { + if (err) { + console.log("Aw, bummer: " + JSON.stringify(err)); + return; + } + + console.log("file exists!!!"); +}); + + + diff --git a/Chapter03/09_expensive.js b/Chapter03/09_expensive.js new file mode 100644 index 0000000..1518366 --- /dev/null +++ b/Chapter03/09_expensive.js @@ -0,0 +1,14 @@ + + +function compute_intersection(arr1, arr2) { + var results = []; + for (var i = 0 ; i < arr1.length; i++) { + for (var j = 0; j < arr2.length; j++) { + if (arr2[j] == arr1[i]) { + results[results.length] = arr1[j]; + break; + } + } + } +} + diff --git a/Chapter03/10_expensive_nextTick.js b/Chapter03/10_expensive_nextTick.js new file mode 100644 index 0000000..05b5fce --- /dev/null +++ b/Chapter03/10_expensive_nextTick.js @@ -0,0 +1,52 @@ + +function compute_intersection(arr1, arr2, callback) { + + var bigger = arr1.length > arr2.length ? arr1 : arr2; + var smaller = bigger == arr1 ? arr2 : arr1; + var biglen = bigger.length; + var smlen = smaller.length; + + var sidx = 0; + var size = 10; // 100 at a time, can adjust! + var results = []; + + function sub_compute_intersection() { + for (var i = sidx; i < (sidx + size) && i < biglen; i++) { + for (var j = 0; j < smlen; j++) { + if (bigger[i] == smaller[j]) { + results.push(smaller[j]); + break; + } + } + } + + if (i >= biglen) { + callback(null, results); + } else { + sidx += size; + process.nextTick(sub_compute_intersection); + } + } + + sub_compute_intersection(); +} + + + +var a1 = [ 3476, 2457, 7547, 34523, 3, 6, 7,2, 77, 8, 2345, + 7623457, 2347, 23572457, 237457, 234869, 237, + 24572457524] ; +var a2 = [ 3476, 75347547, 2457634563, 56763472, 34574, 2347, + 7, 34652364 , 13461346, 572346, 23723457234, 237, + 234, 24352345, 537, 2345235, 2345675, 34534, + 7582768, 284835, 8553577, 2577257,545634, 457247247, + 2345 ]; + +compute_intersection(a1, a2, function (err, results) { + if (err) { + console.log(err); + } else { + console.log(results); + } +}); + diff --git a/Chapter03/11_sync_fileget.js b/Chapter03/11_sync_fileget.js new file mode 100644 index 0000000..4af0eff --- /dev/null +++ b/Chapter03/11_sync_fileget.js @@ -0,0 +1,8 @@ + +var fs = require('fs'); + +var handle = fs.openSync('info.txt', 'r'); +var buf = new Buffer(100000); +var read = fs.readSync(handle, buf, 0, 10000, null); +console.log(buf.toString('utf8', 0, read)); +fs.closeSync(handle); \ No newline at end of file diff --git a/Chapter03/info.txt b/Chapter03/info.txt new file mode 100644 index 0000000..8bd6648 --- /dev/null +++ b/Chapter03/info.txt @@ -0,0 +1 @@ +asdf diff --git a/Chapter04/01_simple_server.js b/Chapter04/01_simple_server.js new file mode 100644 index 0000000..5511a3e --- /dev/null +++ b/Chapter04/01_simple_server.js @@ -0,0 +1,14 @@ + +var http = require('http'); + +function handle_incoming_request(req, res) { + console.log("INCOMING REQUEST: " + req.method + " " + req.url); + res.writeHead(200, { "Content-Type" : "application/json" }); + res.end(JSON.stringify( { error: null }) + "\n"); +} + + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter04/02_load_albums.js b/Chapter04/02_load_albums.js new file mode 100644 index 0000000..94466a5 --- /dev/null +++ b/Chapter04/02_load_albums.js @@ -0,0 +1,39 @@ + +var http = require('http'), + fs = require('fs'); + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(err); + return; + } + callback(null, files); + } + ); +} + +function handle_incoming_request(req, res) { + console.log("INCOMING REQUEST: " + req.method + " " + req.url); + load_album_list(function (err, albums) { + if (err) { + res.writeHead(500, {"Content-Type": "application/json"}); + res.end(JSON.stringify(err) + "\n"); + return; + } + + var out = { error: null, + data: { albums: albums }}; + res.writeHead(200, {"Content-Type": "application/json"}); + res.end(JSON.stringify(out) + "\n"); + }); +} + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter04/03_test_folder.js b/Chapter04/03_test_folder.js new file mode 100644 index 0000000..298f026 --- /dev/null +++ b/Chapter04/03_test_folder.js @@ -0,0 +1,53 @@ + +var http = require('http'), + fs = require('fs'); + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(err); + return; + } + + var only_dirs = []; + + for (var i = 0; files && i < files.length; i++) { + fs.stat( + "albums/" + files[i], + function(err, stats) { + if (stats.isDirectory()) { + only_dirs.push(files[i]); + } + } + ); + } + + callback(null, only_dirs); + } + ); +} + +function handle_incoming_request(req, res) { + console.log("INCOMING REQUEST: " + req.method + " " + req.url); + load_album_list(function (err, albums) { + if (err) { + res.writeHead(500, {"Content-Type": "application/json"}); + res.end(JSON.stringify(err) + "\n"); + return; + } + + var out = { error: null, + data: { albums: albums }}; + res.writeHead(200, {"Content-Type": "application/json"}); + res.end(JSON.stringify(out) + "\n"); + }); +} + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter04/04_test_folder.js b/Chapter04/04_test_folder.js new file mode 100644 index 0000000..b849f6b --- /dev/null +++ b/Chapter04/04_test_folder.js @@ -0,0 +1,61 @@ + +var http = require('http'), + fs = require('fs'); + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(err); + return; + } + + var only_dirs = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, only_dirs); + return; + } + + fs.stat( + "albums/" + files[index], + function (err, stats) { + if (err) { + callback(err); + return; + } + if (stats.isDirectory()) { + only_dirs.push(files[index]); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + +function handle_incoming_request(req, res) { + console.log("INCOMING REQUEST: " + req.method + " " + req.url); + load_album_list(function (err, albums) { + if (err) { + res.writeHead(500, {"Content-Type": "application/json"}); + res.end(JSON.stringify(err) + "\n"); + return; + } + + var out = { error: null, + data: { albums: albums }}; + res.writeHead(200, {"Content-Type": "application/json"}); + res.end(JSON.stringify(out) + "\n"); + }); +} + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter04/05_multiple_requests.js b/Chapter04/05_multiple_requests.js new file mode 100644 index 0000000..5c195d6 --- /dev/null +++ b/Chapter04/05_multiple_requests.js @@ -0,0 +1,167 @@ + +var http = require('http'), + fs = require('fs'); + + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(make_error("file_error", JSON.stringify(err))); + return; + } + + var only_dirs = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, only_dirs); + return; + } + + fs.stat( + "albums/" + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isDirectory()) { + var obj = { name: files[index] }; + only_dirs.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + +function load_album(album_name, callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums/" + album_name, + function (err, files) { + if (err) { + if (err.code == "ENOENT") { + callback(no_such_album()); + } else { + callback(make_error("file_error", + JSON.stringify(err))); + } + return; + } + + var only_files = []; + var path = "albums/" + album_name + "/"; + + (function iterator(index) { + if (index == files.length) { + var obj = { short_name: album_name, + photos: only_files }; + callback(null, obj); + return; + } + + fs.stat( + path + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isFile()) { + var obj = { filename: files[index], + desc: files[index] }; + only_files.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + + +function handle_incoming_request(req, res) { + console.log("INCOMING REQUEST: " + req.method + " " + req.url); + if (req.url == '/albums.json') { + handle_list_albums(req, res); + } else if (req.url.substr(0, 7) == '/albums' + && req.url.substr(req.url.length - 5) == '.json') { + handle_get_album(req, res); + } else { + send_failure(res, 404, invalid_resource()); + } +} + +function handle_list_albums(req, res) { + load_album_list(function (err, albums) { + if (err) { + send_failure(res, 500, err); + return; + } + + send_success(res, { albums: albums }); + }); +} + +function handle_get_album(req, res) { + // format of request is /albums/album_name.json + var album_name = req.url.substr(7, req.url.length - 12); + load_album( + album_name, + function (err, album_contents) { + if (err && err.error == "no_such_album") { + send_failure(res, 404, err); + } else if (err) { + send_failure(res, 500, err); + } else { + send_success(res, { album_data: album_contents }); + } + } + ); +} + + +function make_error(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + +function send_success(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + +function send_failure(res, code, err) { + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +function invalid_resource() { + return make_error("invalid_resource", + "the requested resource does not exist."); +} + +function no_such_album() { + return make_error("no_such_album", + "The specified album does not exist"); +} + + +var s = http.createServer(handle_incoming_request); +s.listen(8080); + diff --git a/Chapter04/06_req_res.js b/Chapter04/06_req_res.js new file mode 100644 index 0000000..48afecd --- /dev/null +++ b/Chapter04/06_req_res.js @@ -0,0 +1,17 @@ + +var http = require('http'); + +function handle_incoming_request(req, res) { + console.log("---------------------------------------------------"); + console.log(req.headers); + console.log("---------------------------------------------------"); + console.log(res); + console.log("---------------------------------------------------"); + res.writeHead(200, { "Content-Type" : "application/json" }); + res.end(JSON.stringify( { error: null }) + "\n"); +} + + +var s = http.createServer(handle_incoming_request); +s.listen(8080); + diff --git a/Chapter04/07_get_params.js b/Chapter04/07_get_params.js new file mode 100644 index 0000000..42196fd --- /dev/null +++ b/Chapter04/07_get_params.js @@ -0,0 +1,188 @@ + +var http = require('http'), + fs = require('fs'), + url = require('url'); + + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(make_error("file_error", JSON.stringify(err))); + return; + } + + var only_dirs = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, only_dirs); + return; + } + + fs.stat( + "albums/" + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isDirectory()) { + var obj = { name: files[index] }; + only_dirs.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + +function load_album(album_name, page, page_size, callback) { + fs.readdir( + "albums/" + album_name, + function (err, files) { + if (err) { + if (err.code == "ENOENT") { + callback(no_such_album()); + } else { + callback(make_error("file_error", + JSON.stringify(err))); + } + return; + } + + var only_files = []; + var path = "albums/" + album_name + "/"; + + (function iterator(index) { + if (index == files.length) { + var ps; + // slice fails gracefully if params are out of range + ps = only_files.splice(page * page_size, page_size); + var obj = { short_name: album_name, + photos: ps }; + callback(null, obj); + return; + } + + fs.stat( + path + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isFile()) { + var obj = { filename: files[index], desc: files[index] }; + only_files.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + + +function handle_incoming_request(req, res) { + + // parse the query params into an object and get the path + // without them. (2nd param true = parse the params). + req.parsed_url = url.parse(req.url, true); + var core_url = req.parsed_url.pathname; + + // test this fixed url to see what they're asking for + if (core_url == '/albums.json') { + handle_list_albums(req, res); + } else if (core_url.substr(0, 7) == '/albums' + && core_url.substr(core_url.length - 5) == '.json') { + handle_get_album(req, res); + } else { + send_failure(res, 404, invalid_resource()); + } +} + +function handle_list_albums(req, res) { + load_album_list(function (err, albums) { + if (err) { + send_failure(res, 500, err); + return; + } + + send_success(res, { albums: albums }); + }); +} + +function handle_get_album(req, res) { + + // get the GET params + var getp = req.parsed_url.query; + var page_num = getp.page ? getp.page : 0; + var page_size = getp.page_size ? getp.page_size : 1000; + + if (isNaN(parseInt(page_num))) page_num = 0; + if (isNaN(parseInt(page_size))) page_size = 1000; + + // format of request is /albums/album_name.json + var core_url = req.parsed_url.pathname; + + var album_name = core_url.substr(7, core_url.length - 12); + load_album( + album_name, + page_num, + page_size, + function (err, album_contents) { + if (err && err.error == "no_such_album") { + send_failure(res, 404, err); + } else if (err) { + send_failure(res, 500, err); + } else { + send_success(res, { album_data: album_contents }); + } + } + ); +} + + + +function make_error(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + +function send_success(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + +function send_failure(res, code, err) { + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +function invalid_resource() { + return make_error("invalid_resource", + "the requested resource does not exist."); +} + +function no_such_album() { + return make_error("no_such_album", + "The specified album does not exist"); +} + + +var s = http.createServer(handle_incoming_request); +s.listen(8080); + diff --git a/Chapter04/08_post_data.js b/Chapter04/08_post_data.js new file mode 100644 index 0000000..dab37f1 --- /dev/null +++ b/Chapter04/08_post_data.js @@ -0,0 +1,304 @@ + +var http = require('http'), + fs = require('fs'), + url = require('url'); + + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(make_error("file_error", JSON.stringify(err))); + return; + } + + var only_dirs = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, only_dirs); + return; + } + + fs.stat( + "albums/" + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isDirectory()) { + var obj = { name: files[index] }; + only_dirs.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + +function load_album(album_name, page, page_size, callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums/" + album_name, + function (err, files) { + if (err) { + if (err.code == "ENOENT") { + callback(no_such_album()); + } else { + callback(make_error("file_error", + JSON.stringify(err))); + } + return; + } + + var only_files = []; + var path = "albums/" + album_name + "/"; + + (function iterator(index) { + if (index == files.length) { + var ps; + // slice fails gracefully if params are out of range + ps = only_files.splice(page * page_size, page_size); + var obj = { short_name: album_name, + photos: ps }; + callback(null, obj); + return; + } + + fs.stat( + path + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isFile()) { + var obj = { filename: files[index], desc: files[index] }; + only_files.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + + + +function do_rename(old_name, new_name, callback) { + + // rename the album folder. + fs.rename( + "albums/" + old_name, + "albums/" + new_name, + callback); +} + + + + +function handle_incoming_request(req, res) { + + // parse the query params into an object and get the path + // without them. (2nd param true = parse the params). + req.parsed_url = url.parse(req.url, true); + var core_url = req.parsed_url.pathname; + + // test this fixed url to see what they're asking for + if (core_url == '/albums.json' && req.method.toLowerCase() == 'get') { + handle_list_albums(req, res); + } else if (core_url.substr(core_url.length - 12) == '/rename.json' + && req.method.toLowerCase() == 'post') { + handle_rename_album(req, res); + } else if (core_url.substr(0, 7) == '/albums' + && core_url.substr(core_url.length - 5) == '.json' + && req.method.toLowerCase() == 'get') { + handle_get_album(req, res); + } else { + send_failure(res, 404, invalid_resource()); + } +} + +function handle_list_albums(req, res) { + load_album_list(function (err, albums) { + if (err) { + send_failure(res, 500, err); + return; + } + + send_success(res, { albums: albums }); + }); +} + +function handle_get_album(req, res) { + + // get the GET params + var getp = req.parsed_url.query; + var page_num = getp.page ? getp.page : 0; + var page_size = getp.page_size ? getp.page_size : 1000; + + if (isNaN(parseInt(page_num))) page_num = 0; + if (isNaN(parseInt(page_size))) page_size = 1000; + + // format of request is /albums/album_name.json + var core_url = req.parsed_url.pathname; + + var album_name = core_url.substr(7, core_url.length - 12); + load_album( + album_name, + page_num, + page_size, + function (err, album_contents) { + if (err && err.error == "no_such_album") { + send_failure(res, 404, err); + } else if (err) { + send_failure(res, 500, err); + } else { + send_success(res, { album_data: album_contents }); + } + } + ); +} + + +function handle_rename_album(req, res) { + + // 1. Get the album name from the URL + var core_url = req.parsed_url.pathname; + var parts = core_url.split('/'); + if (parts.length != 4) { + send_failure(res, 404, invalid_resource(core_url)); + return; + } + + var album_name = parts[2]; + + // 2. get the POST data for the request. this will have the JSON + // for the new name for the album. + var json_body = ''; + req.on( + 'readable', + function () { + var d = req.read(); + console.log(d); + console.log(typeof d); + if (d) { + if (typeof d == 'string') { + json_body += d; + } else if (typeof d == 'object' && d instanceof Buffer) { + json_body += d.toString('utf8'); + } + } + } + ); + + // 3. when we have all the post data, make sure we have valid + // data and then try to do the rename. + req.on( + 'end', + function () { + // did we get a valid body? + if (json_body) { + try { + var album_data = JSON.parse(json_body); + if (!album_data.album_name) { + send_failure(res, 404, missing_data('album_name')); + return; + } + } catch (e) { + // got a body, but not valid json + send_failure(res, 403, bad_json()); + return; + } + + // we have a proposed new album name! + do_rename( + album_name, // old + album_data.album_name, // new + function (err, results) { + if (err && err.code == "ENOENT") { + send_failure(res, 403, no_such_album()); + return; + } else if (err) { + send_failure(res, 500, file_error(err)); + return; + } + send_success(res, null); + } + ); + } else { + send_failure(res, 403, bad_json()); + res.end(); + } + } + ); +} + + + + + + + +function make_error(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + + +function send_success(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +function send_failure(res, code, err) { + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +function invalid_resource() { + return make_error("invalid_resource", + "the requested resource does not exist."); +} + +function no_such_album() { + return make_error("no_such_album", + "The specified album does not exist"); +} + +function file_error(err) { + var msg = "There was a file error on the server: " + err.message; + return make_error("server_file_error", msg); +} + +function missing_data (missing) { + var msg = missing + ? "Your request is missing: '" + missing + "'" + : "Your request is missing some data."; + return make_error("missing_data", msg); +} + +function bad_json() { + return make_error("invalid_json", + "the provided data is not valid JSON"); +} + + +var s = http.createServer(handle_incoming_request); +s.listen(8080); + diff --git a/Chapter04/09_form_data.html b/Chapter04/09_form_data.html new file mode 100644 index 0000000..265ab12 --- /dev/null +++ b/Chapter04/09_form_data.html @@ -0,0 +1,12 @@ + + + Form Test + + +
+ Name:
+ Age:
+ +
+ + diff --git a/Chapter04/09_form_data.js b/Chapter04/09_form_data.js new file mode 100644 index 0000000..5c4cd02 --- /dev/null +++ b/Chapter04/09_form_data.js @@ -0,0 +1,40 @@ + +var http = require('http'), qs = require('querystring'); + +function handle_incoming_request(req, res) { + var body = ''; + req.on( + 'readable', + function () { + var d = req.read(); + if (d) { + if (typeof d == 'string') { + body += d; + } else if (typeof d == 'object' && d instanceof Buffer) { + body += d.toString('utf8'); + } + } + } + ); + + // 3. when we have all the post data, make sure we have valid + // data and then try to do the rename. + req.on( + 'end', + function () { + if (req.method.toLowerCase() == 'post') { + var POST_data = qs.parse(body); + console.log(POST_data); + } + res.writeHead(200, { "Content-Type" : "application/json" }); + res.end(JSON.stringify( { error: null }) + "\n"); + } + ); + +} + + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter04/albums/australia2010/aus_01.jpg b/Chapter04/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_02.jpg b/Chapter04/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_03.jpg b/Chapter04/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_04.jpg b/Chapter04/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_05.jpg b/Chapter04/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_06.jpg b/Chapter04/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_07.jpg b/Chapter04/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_08.jpg b/Chapter04/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/australia2010/aus_09.jpg b/Chapter04/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/info.txt b/Chapter04/albums/info.txt new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/italy2012/picture_01.jpg b/Chapter04/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/italy2012/picture_02.jpg b/Chapter04/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/italy2012/picture_03.jpg b/Chapter04/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/italy2012/picture_04.jpg b/Chapter04/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/italy2012/picture_05.jpg b/Chapter04/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_001.jpg b/Chapter04/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_002.jpg b/Chapter04/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_003.jpg b/Chapter04/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_004.jpg b/Chapter04/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_005.jpg b/Chapter04/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_006.jpg b/Chapter04/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter04/albums/japan2010/picture_007.jpg b/Chapter04/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/01_mymodule.js b/Chapter05/01_mymodule.js new file mode 100644 index 0000000..d2e6462 --- /dev/null +++ b/Chapter05/01_mymodule.js @@ -0,0 +1,25 @@ + + +function Greeter (lang) { + this.language = language; + this.greet() = function () { + switch (this.language) { + case "en": return "Hello!"; + case "de": return "Hallo!"; + case "jp": return "こんにちは!"; + default: return "No speaka that language"; + } + } +} + +exports.hello_world = function () { + console.log("Hello World"); +} + +exports.goodbye = function () { + console.log("Bye bye!"); +} + +exports.greeter = function (lang) { + return new Greeter(lang); +} diff --git a/Chapter05/02_factory_model_module.js b/Chapter05/02_factory_model_module.js new file mode 100644 index 0000000..6388720 --- /dev/null +++ b/Chapter05/02_factory_model_module.js @@ -0,0 +1,11 @@ +function ABC (parms) { + this.varA = 10; + this.varB = 20; + this.functionA = function (var1, var2) { + console.log(var1 + " " + var2); + } +} + +exports.create_ABC = function (parms) { + return new ABC(parms); +} diff --git a/Chapter05/02_factory_model_test.js b/Chapter05/02_factory_model_test.js new file mode 100644 index 0000000..bcbe409 --- /dev/null +++ b/Chapter05/02_factory_model_test.js @@ -0,0 +1,5 @@ +var fmm = require('./02_factory_model_module.js'); + +var abc = fmm.create_ABC(); + +abc.functionA(4, 5); diff --git a/Chapter05/03_constructor_model_module.js b/Chapter05/03_constructor_model_module.js new file mode 100644 index 0000000..ad8f05d --- /dev/null +++ b/Chapter05/03_constructor_model_module.js @@ -0,0 +1,11 @@ + +function ABC () { + this.varA = 10; + this.varB = 20; + this.functionA = function (var1, var2) { + console.log(var1 + " " + var2); + } +} + + +module.exports = ABC; diff --git a/Chapter05/03_constructor_model_test.js b/Chapter05/03_constructor_model_test.js new file mode 100644 index 0000000..7889355 --- /dev/null +++ b/Chapter05/03_constructor_model_test.js @@ -0,0 +1,3 @@ +var abc = require('./03_constructor_model_module.js'); +var obj = new abc(); +obj.functionA(1, 2); diff --git a/Chapter05/04_album_module/album_mgr/Readme.md b/Chapter05/04_album_module/album_mgr/Readme.md new file mode 100644 index 0000000..b40a0e8 --- /dev/null +++ b/Chapter05/04_album_module/album_mgr/Readme.md @@ -0,0 +1,21 @@ +# Album-Manager + +This is our module for managing photo albums based on a directory. We +assume that, given a path, there is an albums sub-folder, and each of +its individual sub-folders are themselves the albums. Files in those +sub-folders are photos. + + +## Album Manager + +The album manager exposes a single function, `albums`, which returns +an array of `Album` objects for each album it contains. + +## Album Object + +The album object has the follow two properties and one method: + +* `name` -- The name of the album +* `path` -- The path to the album +* `photos()` -- Calling this method will return all the album's photos + diff --git a/Chapter05/04_album_module/album_mgr/lib/album.js b/Chapter05/04_album_module/album_mgr/lib/album.js new file mode 100644 index 0000000..bcb0d73 --- /dev/null +++ b/Chapter05/04_album_module/album_mgr/lib/album.js @@ -0,0 +1,78 @@ +var path = require('path'), + fs = require('fs'); + +function Album (album_path) { + this.name = path.basename(album_path); + this.path = album_path; +} + +Album.prototype.name = null; +Album.prototype.path = null; +Album.prototype._photos = null; + +Album.prototype.photos = function (callback) { + if (this._photos != null) { + callback(null, this._photos); + return; + } + + var self = this; + + fs.readdir( + self.path, + function (err, files) { + if (err) { + if (err.code == "ENOENT") { + callback(no_such_album()); + } else { + callback(make_error("file_error", + JSON.stringify(err))); + } + return; + } + + var only_files = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, only_files); + return; + } + + fs.stat( + self.path + "/" + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isFile()) { + only_files.push(files[index]); + } + iterator(index + 1) + } + ); + })(0); + } + ); +}; + + + +exports.create_album = function (path) { + return new Album(path); +}; + + +function make_error(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + + +function no_such_album() { + return make_error("no_such_album", + "The specified album does not exist"); +} diff --git a/Chapter05/04_album_module/album_mgr/lib/albums.js b/Chapter05/04_album_module/album_mgr/lib/albums.js new file mode 100644 index 0000000..b8c731d --- /dev/null +++ b/Chapter05/04_album_module/album_mgr/lib/albums.js @@ -0,0 +1,52 @@ + +var fs = require('fs'), + album = require('./album.js'); + + +exports.version = "1.0.0"; + +exports.albums = function (root, callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + root + "/albums", + function (err, files) { + if (err) { + callback(err); + return; + } + + var album_list = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, album_list); + return; + } + + fs.stat( + root + "albums/" + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isDirectory()) { + var p = root + "albums/" + files[index]; + album_list.push(album.create_album(p)); + } + iterator(index + 1) + } + ); + })(0); + } + ); +}; + +function make_error(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + diff --git a/Chapter05/04_album_module/album_mgr/package.json b/Chapter05/04_album_module/album_mgr/package.json new file mode 100644 index 0000000..036c1cc --- /dev/null +++ b/Chapter05/04_album_module/album_mgr/package.json @@ -0,0 +1,3 @@ +{ "name": "album-manager", + "version": "1.0.0", + "main": "./lib/albums.js" } diff --git a/Chapter05/04_album_module/album_mgr/test/album_test.js b/Chapter05/04_album_module/album_mgr/test/album_test.js new file mode 100644 index 0000000..74fb07e --- /dev/null +++ b/Chapter05/04_album_module/album_mgr/test/album_test.js @@ -0,0 +1,41 @@ + +var album_mgr = require('../lib/albums.js'), + path = require('path'); + + +album_mgr.albums( + "./", + function (err, albums) { + if (err) { + console.log("TEST FAILURE: can't load albums\n" + + JSON.stringify(err)); + return; + } + + (function iterator(index) { + if (index == albums.length) { + console.log("PASS!"); + return; + } + + albums[index].photos( + function (err, photos) { + if (err) { + console.log("TEST FAILURE: load album\n" + + JSON.stringify(err)); + return; + } + + var a = albums[index]; + console.log("Album: " + a.name + + "(" + a.path + ")"); + for (var i = 0; i < photos.length; i++) { + console.log(" " + path.basename(photos[i])); + } + console.log(""); + iterator(index+1); + } + ); + })(0); + } +); diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_01.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_02.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_03.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_04.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_05.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_06.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_07.jpg b/Chapter05/04_album_module/album_mgr/test/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git 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b/Chapter05/04_album_module/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/albums/japan2010/picture_003.jpg b/Chapter05/04_album_module/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/albums/japan2010/picture_004.jpg b/Chapter05/04_album_module/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/albums/japan2010/picture_005.jpg b/Chapter05/04_album_module/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/albums/japan2010/picture_006.jpg b/Chapter05/04_album_module/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/albums/japan2010/picture_007.jpg b/Chapter05/04_album_module/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter05/04_album_module/test_album_mgr.js b/Chapter05/04_album_module/test_album_mgr.js new file mode 100644 index 0000000..547df03 --- /dev/null +++ b/Chapter05/04_album_module/test_album_mgr.js @@ -0,0 +1,30 @@ + +var amgr = require('./album_mgr'); + + +amgr.albums('./', function (err, albums) { + if (err) { + console.log("Unexpected error: " + JSON.stringify(err)); + return; + } + + (function iterator(index) { + if (index == albums.length) { + console.log("Done"); + return; + } + + albums[index].photos(function (err, photos) { + if (err) { + console.log("Err loading album: " + JSON.stringify(err)); + return; + } + + console.log(albums[index].name); + console.log(photos); + console.log(""); + iterator(index + 1); + }); + })(0); +}); + diff --git a/Chapter05/05_series.js b/Chapter05/05_series.js new file mode 100644 index 0000000..0e81fe4 --- /dev/null +++ b/Chapter05/05_series.js @@ -0,0 +1,19 @@ + +var async = require("async"); + +async.series({ + + numbers: function (callback) { + setTimeout(function () { + callback(null, [ 1, 2, 3 ]); + }, 1500); + }, + strings: function (callback) { + setTimeout(function () { + callback(null, [ "a", "b", "c" ]); + }, 2000); + } +}, +function (err, results) { + console.log(results); +}); diff --git a/Chapter05/06_parallel.js b/Chapter05/06_parallel.js new file mode 100644 index 0000000..9ed0b8f --- /dev/null +++ b/Chapter05/06_parallel.js @@ -0,0 +1,19 @@ + +var async = require("async"); + +async.parallel({ + + numbers: function (callback) { + setTimeout(function () { + callback(null, [ 1, 2, 3 ]); + }, 1500); + }, + strings: function (callback) { + setTimeout(function () { + callback(null, [ "a", "b", "c" ]); + }, 2000); + } +}, +function (err, results) { + console.log(results); +}); diff --git a/Chapter05/07_auto.js b/Chapter05/07_auto.js new file mode 100644 index 0000000..d2facf2 --- /dev/null +++ b/Chapter05/07_auto.js @@ -0,0 +1,31 @@ + +var async = require("async"); + +async.auto({ + + numbers: function (callback) { + setTimeout(function () { + callback(null, [ 1, 2, 3 ]); + }, 1500); + }, + strings: function (callback) { + setTimeout(function () { + callback(null, [ "a", "b", "c" ]); + }, 2000); + }, + assemble: [ 'numbers', 'strings', function (callback, thus_far) { + callback(null, { + numbers: thus_far.numbers.join(", "), + strings: "'" + thus_far.strings.join("', '") + "'" + }); + }] +}, +function (err, results) { + if (err) + console.log(err); + else + console.log(results); +} + +); + diff --git a/Chapter05/08_async_vs_no_async.js b/Chapter05/08_async_vs_no_async.js new file mode 100644 index 0000000..fa4c522 --- /dev/null +++ b/Chapter05/08_async_vs_no_async.js @@ -0,0 +1,110 @@ + +var fs = require('fs'); +var async = require('async'); + + +function load_file_contents(path, callback) { + fs.open(path, 'r', function (err, f) { + if (err) { + callback(err); + return; + } else if (!f) { + callback(make_error("invalid_handle", + "bad file handle from fs.open")); + return; + } + fs.fstat(f, function (err, stats) { + if (err) { + callback(err); + return; + } + if (stats.isFile()) { + var b = new Buffer(10000); + fs.read(f, b, 0, 10000, null, function (err, br, buf) { + if (err) { + callback(err); + return; + } + + fs.close(f, function (err) { + if (err) { + callback(err); + return; + } + callback(null, b.toString('utf8', 0, br)); + }); + }); + } else { + calback(make_error("not_file", "Can't load directory")); + return; + } + }); + }); +} + + + +function load_file_contents2(path, callback) { + var f; + async.waterfall([ + function (cb) { // cb stands for "callback" + fs.open(path, 'r', cb); + }, + // the handle was passed to the callback at the end of + // the fs.open function call. async passes ALL params to us. + function (handle, cb) { + f = handle + fs.fstat(f, cb); + }, + function (stats, cb) { + var b = new Buffer(100000); + if (stats.isFile()) { + fs.read(f, b, 0, 100000, null, cb); + } else { + calback(make_error("not_file", "Can't load directory")); + } + }, + function (bytes_read, buffer, cb) { + fs.close(f, function (err) { + if (err) + cb(err); + else + cb(null, buffer.toString('utf8', 0, bytes_read)); + }) + } + ], + // called after all fns have finished, or then there is an error. + function (err, file_contents) { + callback(err, file_contents); + }); +} + + + + +load_file_contents( + "test.txt", + function (err, contents) { + if (err) + console.log(err); + else + console.log(contents); + } +); + +load_file_contents2( + "test.txt", + function (err, contents) { + if (err) + console.log(err); + else + console.log(contents); + } +); + +function make_error(err, msg) { + var e = new Error(msg); + e.code = msg; + return e; +} + diff --git a/Chapter05/package.json b/Chapter05/package.json new file mode 100644 index 0000000..a91dee5 --- /dev/null +++ b/Chapter05/package.json @@ -0,0 +1,9 @@ +{ + "name": "Modules-Demo", + "description": "Demonstrates Using Modules, specificaly async", + "version": "0.0.1", + "private": true, + "dependencies": { + "async": "0.1.x" + } +} diff --git a/Chapter05/test.txt b/Chapter05/test.txt new file mode 100644 index 0000000..340fc4c --- /dev/null +++ b/Chapter05/test.txt @@ -0,0 +1,2 @@ +Is that how you get ants, Barry? +Yes it is, other Barry. diff --git a/Chapter06/01_simple_stream.js b/Chapter06/01_simple_stream.js new file mode 100644 index 0000000..e17a0b1 --- /dev/null +++ b/Chapter06/01_simple_stream.js @@ -0,0 +1,32 @@ +// before we used read(), now we'll use streams + +var fs = require('fs'); +var contents; + +// INCEPTION BWAAAAAAA!!!! +var rs = fs.createReadStream("01_simple_stream.js"); + +rs.on('readable', function () { + var str; + var d = rs.read(); + if (d) { + if (typeof d == 'string') { + str = d; + } else if (typeof d == 'object' && d instanceof Buffer) { + str = d.toString('utf8'); + } + if (str) { + if (!contents) + contents = d; + else + contents += str; + } + } +}); + +rs.on('end', function () { + console.log("read in the file contents: "); + console.log(contents.toString('utf8')); +}); + + diff --git a/Chapter06/01x_old_streams/01_simple_stream.js b/Chapter06/01x_old_streams/01_simple_stream.js new file mode 100644 index 0000000..739c80c --- /dev/null +++ b/Chapter06/01x_old_streams/01_simple_stream.js @@ -0,0 +1,21 @@ +// before we used read(), now we'll use streams + +var fs = require('fs'); +var contents; + +// INCEPTION BWAAAAAAA!!!! +var rs = fs.createReadStream("01_simple_stream.js"); + +rs.on('data', function (data) { + if (!contents) + contents = data; + else + contents = contents.concat(data); +}); + +rs.on('end', function () { + console.log("read in the file contents: "); + console.log(contents.toString('utf8')); +}); + + diff --git a/Chapter06/02_static_content_server.js b/Chapter06/02_static_content_server.js new file mode 100644 index 0000000..e76bdbb --- /dev/null +++ b/Chapter06/02_static_content_server.js @@ -0,0 +1,74 @@ +var http = require('http'), + path = require('path'), + fs = require('fs'); + + +function handle_incoming_request(req, res) { + if (req.method.toLowerCase() == 'get' + && req.url.substring(0, 9) == '/content/') { + serve_static_file(req.url.substring(9), res); + } else { + res.writeHead(404, { "Content-Type" : "application/json" }); + + var out = { error: "not_found", + message: "'" + req.url + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + } +} + + +function serve_static_file(file, res) { + var rs = fs.createReadStream(file); + var ct = content_type_for_path(file); + res.writeHead(200, { "Content-Type" : ct }); + + rs.on( + 'error', + function (e) { + res.writeHead(404, { "Content-Type" : "application/json" }); + var out = { error: "not_found", + message: "'" + file + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + return; + } + ); + + rs.on( + 'readable', + function () { + var d = rs.read(); + if (d) { + if (typeof d == 'string') + res.write(d); + else if (typeof d == 'object' && d instanceof Buffer) + res.write(d.toString('utf8')); + } + } + ); + + rs.on( + 'end', + function () { + res.end(); // we're done!!! + } + ); +} + + +function content_type_for_path (file) { + var ext = path.extname(file); + switch (ext.toLowerCase()) { + case '.html': return "text/html"; + case ".js": return "text/javascript"; + case ".css": return 'text/css'; + case '.jpg': case '.jpeg': return 'image/jpeg'; + default: return 'text/plain'; + } +} + + + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter06/03_static_content_pauses.js b/Chapter06/03_static_content_pauses.js new file mode 100644 index 0000000..d9c61f1 --- /dev/null +++ b/Chapter06/03_static_content_pauses.js @@ -0,0 +1,73 @@ +var http = require('http'), + path = require('path'), + fs = require('fs'); + + +function handle_incoming_request(req, res) { + if (req.method.toLowerCase() == 'get' + && req.url.substring(0, 9) == '/content/') { + serve_static_file(req.url.substring(9), res); + } else { + res.writeHead(404, { "Content-Type" : "application/json" }); + + var out = { error: "not_found", + message: "'" + req.url + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + } +} + + +function serve_static_file(file, res) { + var rs = fs.createReadStream(file); + + var ct = content_type_for_path(file); + res.writeHead(200, { "Content-Type" : ct }); + + rs.on( + 'error', + function (e) { + res.writeHead(404, { "Content-Type" : "application/json" }); + var out = { error: "not_found", + message: "'" + file + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + } + ); + + rs.on( + 'readable', + function () { + var data = rs.read(); + if (!res.write(data)) { + rs.pause(); + } + } + ); + + res.on('drain', function () { + rs.resume(); + }); + + rs.on( + 'end', + function () { + res.end(); // we're done!!! + } + ); +} + +function content_type_for_path (file) { + var ext = path.extname(file); + switch (ext.toLowerCase()) { + case '.html': return "text/html"; + case ".js": return "text/javascript"; + case ".css": return 'text/css'; + case '.jpg': case '.jpeg': return 'image/jpeg'; + default: return 'text/plain'; + } +} + + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter06/04_pipe.js b/Chapter06/04_pipe.js new file mode 100644 index 0000000..6e1bc4e --- /dev/null +++ b/Chapter06/04_pipe.js @@ -0,0 +1,54 @@ +var http = require('http'), + path = require('path'), + fs = require('fs'); + + +function handle_incoming_request(req, res) { + if (req.method.toLowerCase() == 'get' + && req.url.substring(0, 9) == '/content/') { + serve_static_file(req.url.substring(9), res); + } else { + res.writeHead(404, { "Content-Type" : "application/json" }); + + var out = { error: "not_found", + message: "'" + req.url + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + } +} + + +function serve_static_file(file, res) { + var rs = fs.createReadStream(file); + var ct = content_type_for_path(file); + res.writeHead(200, { "Content-Type" : ct }); + + rs.on( + 'error', + function (e) { + res.writeHead(404, { "Content-Type" : "application/json" }); + var out = { error: "not_found", + message: "'" + file + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + return; + } + ); + + rs.pipe(res); +} + +function content_type_for_path (file) { + var ext = path.extname(file); + switch (ext.toLowerCase()) { + case '.html': return "text/html"; + case ".js": return "text/javascript"; + case ".css": return 'text/css'; + case '.jpg': case '.jpeg': return 'image/jpeg'; + default: return 'text/plain'; + } +} + + +var s = http.createServer(handle_incoming_request); + +s.listen(8080); + diff --git a/Chapter06/05_server_static.js b/Chapter06/05_server_static.js new file mode 100644 index 0000000..0bac4d1 --- /dev/null +++ b/Chapter06/05_server_static.js @@ -0,0 +1,232 @@ +var http = require('http'), + path = require("path"), + fs = require('fs'), + url = require('url'); + + +function serve_static_file(file, res) { + var rs = fs.createReadStream("content/" + file); + var ct = content_type_for_path(file); + res.writeHead(200, { "Content-Type" : ct }); + + rs.on( + 'error', + function (e) { + res.writeHead(404, { "Content-Type" : "application/json" }); + var out = { error: "not_found", + message: "'" + file + "' not found" }; + res.end(JSON.stringify(out) + "\n"); + return; + } + ); + + rs.pipe(res); +} + + +function content_type_for_path (file) { + var ext = path.extname(file); + switch (ext.toLowerCase()) { + case '.html': return "text/html"; + case ".js": return "text/javascript"; + case ".css": return 'text/css'; + case '.jpg': case '.jpeg': return 'image/jpeg'; + case '.png': return "image/png"; + default: return 'text/plain'; + } +} + + + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "albums", + function (err, files) { + if (err) { + callback(make_error("file_error"), JSON.stringify(err)); + return; + } + + var only_dirs = []; + + (function iterator(index) { + if (index == files.length) { + callback(null, only_dirs); + return; + } + + fs.stat( + "albums/" + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isDirectory()) { + var obj = { name: files[index] }; + only_dirs.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + +function load_album(album_name, page, page_size, callback) { + fs.readdir( + "albums/" + album_name, + function (err, files) { + if (err) { + if (err.code == "ENOENT") { + callback(no_such_album()); + } else { + callback(make_error("file_error", + JSON.stringify(err))); + } + return; + } + + var only_files = []; + + (function iterator(index) { + if (index == files.length) { + var ps; + // slice fails gracefully if params are out of range + ps = only_files.splice(page * page_size, page_size); + var obj = { short_name: album_name, + photos: ps }; + callback(null, obj); + return; + } + + var path = "albums/" + album_name + "/"; + + fs.stat( + path + files[index], + function (err, stats) { + if (err) { + callback(make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isFile()) { + var obj = { filename: files[index], desc: files[index] }; + only_files.push(obj); + } + iterator(index + 1) + } + ); + })(0); + } + ); +} + +function handle_incoming_request(req, res) { + + // parse the query params into an object and get the path + // without them. (2nd param true = parse the params). + req.parsed_url = url.parse(req.url, true); + var core_url = req.parsed_url.pathname; + + // test this fixed url to see what they're asking for + if (req.method.toLowerCase() == 'get' + && req.url.substring(0, 9) == '/content/') { + serve_static_file(req.url.substring(9), res); + } else if (core_url == '/albums.json') { + handle_list_albums(req, res); + } else if (core_url.substr(0, 7) == '/albums' + && core_url.substr(core_url.length - 5) == '.json') { + handle_get_album(req, res); + } else { + send_failure(res, 404, invalid_resource()); + } +} + +function handle_list_albums(req, res) { + load_album_list(function (err, albums) { + if (err) { + send_failure(res, 500, err); + return; + } + + send_success(res, { albums: albums }); + }); +} + +function handle_get_album(req, res) { + + // get the GET params + var getp = get_query_params(req); + var page_num = getp.page ? getp.page : 0; + var page_size = getp.page_size ? getp.page_size : 1000; + + if (isNaN(parseInt(page_num))) page_num = 0; + if (isNaN(parseInt(page_size))) page_size = 1000; + + // format of request is /albums/album_name.json + var core_url = req.parsed_url.pathname; + + var album_name = core_url.substr(7, core_url.length - 12); + load_album( + album_name, + page_num, + page_size, + function (err, album_contents) { + if (err && err == "no_such_album") { + send_failure(res, 404, err); + } else if (err) { + send_failure(res, 500, err); + } else { + send_success(res, { album_photos: album_contents }); + } + } + ); +} + + + + +function make_error(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + +function send_success(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + +function send_failure(res, code, err) { + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +function invalid_resource() { + return make_error("invalid_resource", + "the requested resource does not exist."); +} + +function no_such_album() { + return make_error("no_such_album", + "The specified album does not exist"); +} + + +function get_query_params(req) { + return req.parsed_url.query; +} + + + + +var s = http.createServer(handle_incoming_request); +s.listen(8080); diff --git a/Chapter06/06_writing_a_file.js b/Chapter06/06_writing_a_file.js new file mode 100644 index 0000000..a9d9acf --- /dev/null +++ b/Chapter06/06_writing_a_file.js @@ -0,0 +1,14 @@ +// before we used read(), now we'll use streams + +var fs = require('fs'); +var contents; + +// INCEPTION BWAAAAAAA!!!! +var rs = fs.createReadStream("01_simple_stream.js"); +var ws = fs.createWriteStream("copy of 01_simple_stream.js"); + + +rs.pipe(ws); + + + diff --git a/Chapter06/albums/australia2010/aus_01.jpg b/Chapter06/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_02.jpg b/Chapter06/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_03.jpg b/Chapter06/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_04.jpg b/Chapter06/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_05.jpg b/Chapter06/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_06.jpg b/Chapter06/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_07.jpg b/Chapter06/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_08.jpg b/Chapter06/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/australia2010/aus_09.jpg b/Chapter06/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/info.txt b/Chapter06/albums/info.txt new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/italy2012/picture_01.jpg b/Chapter06/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/italy2012/picture_02.jpg b/Chapter06/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/italy2012/picture_03.jpg b/Chapter06/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/italy2012/picture_04.jpg b/Chapter06/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/italy2012/picture_05.jpg b/Chapter06/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_001.jpg b/Chapter06/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_002.jpg b/Chapter06/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_003.jpg b/Chapter06/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_004.jpg b/Chapter06/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_005.jpg b/Chapter06/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_006.jpg b/Chapter06/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/albums/japan2010/picture_007.jpg b/Chapter06/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter06/buffer_sidebar.js b/Chapter06/buffer_sidebar.js new file mode 100644 index 0000000..5340e23 --- /dev/null +++ b/Chapter06/buffer_sidebar.js @@ -0,0 +1,25 @@ + + +var b = new Buffer(10000); +var str = "我叫王马克"; + +b.write(str); // default is utf8, which is what we want + +console.log( b.length ); + + +// byteLength is useful for working with UTF-8 and buffers +console.log( str.length ); +console.log( Buffer.byteLength(str) ); + + +var b1 = new Buffer("My name is "); +var b2 = new Buffer("Marc"); +var b3 = Buffer.concat([ b1, b2 ]); +console.log(b3.toString('utf8')); + + +var bb = new Buffer(100); +bb.fill("\0"); + +console.log(bb.readInt8(0)); diff --git a/Chapter06/content/album.js b/Chapter06/content/album.js new file mode 100644 index 0000000..218d444 --- /dev/null +++ b/Chapter06/content/album.js @@ -0,0 +1,46 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + parts = window.location.href.split("/"); + var album_name = parts[5]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums/" + album_name + ".json", function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var af = d.data.album_data; + + for (var i = 0; i < af.photos.length; i++) { + var url = "/albums/" + af.short_name + "/" + af.photos[i]; + obj.photos.push({ url: url, desc: af.photos[i] }); + } + return obj; +} diff --git a/Chapter06/content/jquery.mustache.js b/Chapter06/content/jquery.mustache.js new file mode 100644 index 0000000..4d3c952 --- /dev/null +++ b/Chapter06/content/jquery.mustache.js @@ -0,0 +1,648 @@ +/* +Shameless port of a shameless port +@defunkt => @janl => @aq + +See http://github.com/defunkt/mustache for more info. +*/ + +;(function($) { + +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // + + + + + + + diff --git a/Chapter06/templates/content/album.js b/Chapter06/templates/content/album.js new file mode 100644 index 0000000..0dbb4d7 --- /dev/null +++ b/Chapter06/templates/content/album.js @@ -0,0 +1,44 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + parts = window.location.href.split("/"); + var album_name = parts[5]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/albums/" + album_name + ".json", function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var af = d.data.album_data; + + for (var i = 0; i < af.photos.length; i++) { + var url = "/albums/" + af.short_name + "/" + af.photos[i].filename; + obj.photos.push({ url: url, desc: af.photos[i].filename }); + } + return obj; +} diff --git a/Chapter06/templates/content/home.js b/Chapter06/templates/content/home.js new file mode 100644 index 0000000..1dbc5ac --- /dev/null +++ b/Chapter06/templates/content/home.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); 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define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // + + + + + + + diff --git a/Chapter07/05_static_middleware/app/handlers/albums.js b/Chapter07/05_static_middleware/app/handlers/albums.js new file mode 100644 index 0000000..1816af2 --- /dev/null +++ b/Chapter07/05_static_middleware/app/handlers/albums.js @@ -0,0 +1,136 @@ + +var helpers = require('./helpers.js'), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + +exports.list_all = function (req, res) { + load_album_list(function (err, albums) { + if (err) { + helpers.send_failure(res, 500, err); + return; + } + + helpers.send_success(res, { albums: albums }); + }); +}; + +exports.album_by_name = function (req, res) { + // get the GET params + var getp = req.query; + var page_num = getp.page ? getp.page : 0; + var page_size = getp.page_size ? getp.page_size : 1000; + + if (isNaN(parseInt(page_num))) page_num = 0; + if (isNaN(parseInt(page_size))) page_size = 1000; + + // format of request is /albums/album_name.json + var album_name = req.params.album_name; + load_album( + album_name, + page_num, + page_size, + function (err, album_contents) { + if (err && err.error == "no_such_album") { + helpers.send_failure(res, 404, err); + } else if (err) { + helpers.send_failure(res, 500, err); + } else { + helpers.send_success(res, { album_data: album_contents }); + } + } + ); +}; + +function load_album_list(callback) { + // we will just assume that any directory in our 'albums' + // subfolder is an album. + fs.readdir( + "../static/albums", + function (err, files) { + if (err) { + callback(helpers.make_error("file_error", JSON.stringify(err))); + return; + } + + var only_dirs = []; + async.forEach( + files, + function (element, cb) { + fs.stat( + "../static/albums/" + element, + function (err, stats) { + if (err) { + cb(helpers.make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isDirectory()) { + only_dirs.push({ name: element }); + } + cb(null); + } + ); + }, + function (err) { + callback(err, err ? null : only_dirs); + } + ); + } + ); +}; + +function load_album(album_name, page, page_size, callback) { + fs.readdir( + "../static/albums/" + album_name, + function (err, files) { + if (err) { + if (err.code == "ENOENT") { + callback(helpers.no_such_album()); + } else { + callback(helpers.make_error("file_error", + JSON.stringify(err))); + } + return; + } + + var only_files = []; + var path = "../static/albums/" + album_name + "/"; + + async.forEach( + files, + function (element, cb) { + fs.stat( + path + element, + function (err, stats) { + if (err) { + cb(helpers.make_error("file_error", + JSON.stringify(err))); + return; + } + if (stats.isFile()) { + var obj = { filename: element, + desc: element }; + only_files.push(obj); + } + cb(null); + } + ); + }, + function (err) { + if (err) { + callback(err); + } else { + var ps = page_size; + var photos = only_files.splice(page * ps, ps); + var obj = { short_name: album_name, + photos: photos }; + callback(null, obj); + } + } + ); + } + ); +}; + diff --git a/Chapter07/05_static_middleware/app/handlers/helpers.js b/Chapter07/05_static_middleware/app/handlers/helpers.js new file mode 100644 index 0000000..c73bb55 --- /dev/null +++ b/Chapter07/05_static_middleware/app/handlers/helpers.js @@ -0,0 +1,34 @@ + +exports.version = '0.1.0'; + +exports.make_error = function(err, msg) { + var e = new Error(msg); + e.code = err; + return e; +} + + +exports.send_success = function(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +exports.send_failure = function(res, code, err) { + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +exports.invalid_resource = function() { + return exports.make_error("invalid_resource", + "the requested resource does not exist."); +} + +exports.no_such_album = function() { + return exports.make_error("no_such_album", + "The specified album does not exist"); +} + diff --git a/Chapter07/05_static_middleware/app/handlers/pages.js b/Chapter07/05_static_middleware/app/handlers/pages.js new file mode 100644 index 0000000..b2c7b12 --- /dev/null +++ b/Chapter07/05_static_middleware/app/handlers/pages.js @@ -0,0 +1,29 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generate = function (req, res) { + + var page = req.params.page_name; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; diff --git a/Chapter07/05_static_middleware/app/package.json b/Chapter07/05_static_middleware/app/package.json new file mode 100644 index 0000000..3cf0a17 --- /dev/null +++ b/Chapter07/05_static_middleware/app/package.json @@ -0,0 +1,10 @@ +{ + "name": "Photo-Sharing", + "description": "Our Photo Sharing Application with static middleware", + "version": "0.0.2", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x" + } +} diff --git a/Chapter07/05_static_middleware/app/server.js b/Chapter07/05_static_middleware/app/server.js new file mode 100644 index 0000000..3a04759 --- /dev/null +++ b/Chapter07/05_static_middleware/app/server.js @@ -0,0 +1,29 @@ + +var express = require('express'); +var app = express(); + +var fs = require('fs'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.static(__dirname + "/../static")); + +app.get('/v1/albums.json', album_hdlr.list_all); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); +app.get('/pages/:page_name', page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', page_hdlr.generate); + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + +app.listen(8080); diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_01.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_02.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_03.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_04.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_05.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_06.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_07.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_08.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/australia2010/aus_09.jpg b/Chapter07/05_static_middleware/static/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/info.txt b/Chapter07/05_static_middleware/static/albums/info.txt new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/italy2012/picture_01.jpg b/Chapter07/05_static_middleware/static/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/italy2012/picture_02.jpg b/Chapter07/05_static_middleware/static/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/italy2012/picture_03.jpg b/Chapter07/05_static_middleware/static/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/italy2012/picture_04.jpg b/Chapter07/05_static_middleware/static/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/italy2012/picture_05.jpg b/Chapter07/05_static_middleware/static/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_001.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_002.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_003.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_004.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_005.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_006.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/albums/japan2010/picture_007.jpg b/Chapter07/05_static_middleware/static/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter07/05_static_middleware/static/content/album.js b/Chapter07/05_static_middleware/static/content/album.js new file mode 100644 index 0000000..f1faf68 --- /dev/null +++ b/Chapter07/05_static_middleware/static/content/album.js @@ -0,0 +1,46 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + parts = window.location.href.split("/"); + var album_name = parts[5]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums/" + album_name + ".json", function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var af = d.data.album_data; + + for (var i = 0; i < af.photos.length; i++) { + var url = "/albums/" + af.short_name + "/" + af.photos[i].filename; + obj.photos.push({ url: url, desc: af.photos[i].filename }); + } + return obj; +} diff --git a/Chapter07/05_static_middleware/static/content/home.js b/Chapter07/05_static_middleware/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter07/05_static_middleware/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are 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if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // + + + + + + + + diff --git a/Chapter08/02_create_album/app/data/album.js b/Chapter08/02_create_album/app/data/album.js new file mode 100644 index 0000000..c107cd5 --- /dev/null +++ b/Chapter08/02_create_album/app/data/album.js @@ -0,0 +1,171 @@ + +var fs = require('fs'), + crypto = require("crypto"), + local = require('../local.config.js'), + db = require('./db.js'), + path = require("path"), + async = require('async'), + backhelp = require("./backend_helpers.js"); + +exports.version = "0.1.0"; + + +exports.create_album = function (data, callback) { + var final_album; + var write_succeeded = false; + async.waterfall([ + // validate data. + function (cb) { + try { + backhelp.verify(data, + [ "name", + "title", + "date", + "description" ]); + if (!backhelp.valid_filename(data.name)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + cb(null, data); + }, + + // create the album in mongo. + function (album_data, cb) { + var write = JSON.parse(JSON.stringify(album_data)); + write._id = album_data.name; + db.albums.insert(write, { w: 1, safe: true }, cb); + }, + + // make sure the folder exists. + function (new_album, cb) { + write_succeeded = true; + final_album = new_album[0]; + fs.mkdir(local.config.static_content + + "albums/" + data.name, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err) { + if (write_succeeded) + db.albums.remove({ _id: data.name }, function () {}); + + if (err instanceof Error && err.code == 11000) + callback(backhelp.album_already_exists()); + else if (err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err); + } else { + callback(err, err ? null : final_album); + } + }); +}; + + +exports.album_by_name = function (name, callback) { + db.albums.find({ _id: name }).toArray(function (err, results) { + if (err) { + callback(err); + return; + } + + if (results.length == 0) { + callback(null, null); + } else if (results.length == 1) { + callback(null, results[0]); + } else { + console.error("More than one album named: " + name); + console.error(results); + callback(backhelp.db_error()); + } + }); +}; + + +exports.photos_for_album = function (album_name, pn, ps, callback) { + var sort = { date: -1 }; + db.photos.find({ albumid: album_name }) + .skip(pn) + .limit(ps) + .sort("date") + .toArray(callback); +}; + + + +exports.all_albums = function (sort_field, sort_desc, skip, count, callback) { + var sort = {}; + sort[sort_field] = sort_desc ? -1 : 1; + db.albums.find() + .sort(sort) + .limit(count) + .skip(skip) + .toArray(callback); +}; + + + +exports.add_photo = function (photo_data, path_to_photo, callback) { + var final_photo; + var base_fn = path.basename(path_to_photo).toLowerCase(); + async.waterfall([ + // validate data + function (cb) { + try { + backhelp.verify(photo_data, + [ "albumid", + "description", + "date" ]); + + photo_data.filename = base_fn; + + if (!backhelp.valid_filename(photo_data.albumid)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + + cb(null, photo_data); + }, + + // add the photo to the collection + function (pd, cb) { + pd._id = pd.albumid + "_" + pd.filename; + db.photos.insert(pd, { w: 1, safe: true }, cb); + }, + + // now copy the temp file to static content + function (new_photo, cb) { + final_photo = new_photo[0]; + + var save_path = local.config.static_content + "albums/" + + photo_data.albumid + "/" + base_fn; + + backhelp.file_copy(path_to_photo, save_path, true, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err && err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err, err ? null : final_photo); + }); + +}; + + + +function invalid_album_name() { + return backhelp.error("invalid_album_name", + "Album names can have letters, #s, _ and, -"); +} +function invalid_filename() { + return backhelp.error("invalid_filename", + "Filenames can have letters, #s, _ and, -"); +} + diff --git a/Chapter08/02_create_album/app/data/backend_helpers.js b/Chapter08/02_create_album/app/data/backend_helpers.js new file mode 100644 index 0000000..76d1754 --- /dev/null +++ b/Chapter08/02_create_album/app/data/backend_helpers.js @@ -0,0 +1,88 @@ + +var fs = require('fs'); + + +exports.verify = function (data, field_names) { + for (var i = 0; i < field_names.length; i++) { + if (!data[field_names[i]]) { + throw exports.error("missing_data", + field_names[i] + " not optional"); + } + } + + return true; +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err.message)); +} + + +/** + * Possible signatures: + * src, dst, callback + * src, dst, can_overwrite, callback + */ +exports.file_copy = function () { + + var src, dst, callback; + var can_overwrite = false; + + if (arguments.length == 3) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[2]; + } else if (arguments.length == 4) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[3]; + can_overwrite = arguments[2] + } + + function copy(err) { + var is, os; + + if (!err && !can_overwrite) { + return callback(backhelp.error("file_exists", + "File " + dst + " exists.")); + } + + fs.stat(src, function (err) { + if (err) { + return callback(err); + } + + is = fs.createReadStream(src); + os = fs.createWriteStream(dst); + is.on('end', function () { callback(null); }); + is.on('error', function (e) { callback(e); }); + is.pipe(os); + }); + } + + fs.stat(dst, copy); +}; + + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.db_error = function () { + return exports.error("server_error", + "Something horrible has happened with our database!"); +} + +exports.album_already_exists = function () { + return exports.error("album_already_exists", + "An album with this name already exists."); +}; diff --git a/Chapter08/02_create_album/app/data/db.js b/Chapter08/02_create_album/app/data/db.js new file mode 100644 index 0000000..23125e8 --- /dev/null +++ b/Chapter08/02_create_album/app/data/db.js @@ -0,0 +1,58 @@ +var Db = require('mongodb').Db, + Connection = require('mongodb').Connection, + Server = require('mongodb').Server, + async = require('async'), + local = require("../local.config.js"); + +var host = local.config.db_config.host + ? local.config.db_config.host + : 'localhost'; +var port = local.config.db_config.port + ? local.config.db_config.port + : Connection.DEFAULT_PORT; +var ps = local.config.db_config.poolSize + ? local.config.db_config.poolSize : 5; + +var db = new Db('PhotoAlbums', + new Server(host, port, + { auto_reconnect: true, + poolSize: ps}), + { w: 1 }); + +/** + * Currently for initialisation, we just want to open + * the database. We won't even attempt to start up + * if this fails, as it's pretty pointless. + */ +exports.init = function (callback) { + async.waterfall([ + // 1. open database connection + function (cb) { + console.log("\n** 1. open db"); + db.open(cb); + }, + + // 2. create collections for our albums and photos. if + // they already exist, then we're good. + function (db_conn, cb) { + console.log("\n** 2. create albums and photos collections."); + db.collection("albums", cb); + }, + + function (albums_coll, cb) { + exports.albums = albums_coll; + db.collection("photos", cb); + }, + + function (photos_coll, cb) { + exports.photos = photos_coll; + cb(null); + } + ], callback); +}; + + +exports.albums = null; +exports.photos = null; + + diff --git a/Chapter08/02_create_album/app/handlers/albums.js b/Chapter08/02_create_album/app/handlers/albums.js new file mode 100644 index 0000000..ac2da86 --- /dev/null +++ b/Chapter08/02_create_album/app/handlers/albums.js @@ -0,0 +1,259 @@ + +var helpers = require('./helpers.js'), + album_data = require("../data/album.js"), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +/** + * Album class. + */ +function Album (album_data) { + this.name = album_data.name; + this.date = album_data.date; + this.title = album_data.title; + this.description = album_data.description; + this._id = album_data._id; +} + +Album.prototype.name = null; +Album.prototype.date = null; +Album.prototype.title = null; +Album.prototype.description = null; + +Album.prototype.response_obj = function () { + return { name: this.name, + date: this.date, + title: this.title, + description: this.description }; +}; +Album.prototype.photos = function (pn, ps, callback) { + if (this.album_photos != undefined) { + callback(null, this.album_photos); + return; + } + + album_data.photos_for_album( + this.name, + pn, ps, + function (err, results) { + if (err) { + callback(err); + return; + } + + var out = []; + for (var i = 0; i < results.length; i++) { + out.push(new Photo(results[i])); + } + + this.album_photos = out; + callback(null, this.album_photos); + } + ); +}; +Album.prototype.add_photo = function (data, path, callback) { + album_data.add_photo(data, path, function (err, photo_data) { + if (err) + callback(err); + else { + var p = new Photo(photo_data); + if (this.all_photos) + this.all_photos.push(p); + else + this.app_photos = [ p ]; + + callback(null, p); + } + }); +}; + + + + +/** + * Photo class. + */ +function Photo (photo_data) { + this.filename = photo_data.filename; + this.date = photo_data.date; + this.albumid = photo_data.albumid; + this.description = photo_data.description; + this._id = photo_data._id; +} +Photo.prototype._id = null; +Photo.prototype.filename = null; +Photo.prototype.date = null; +Photo.prototype.albumid = null; +Photo.prototype.description = null; +Photo.prototype.response_obj = function() { + return { + filename: this.filename, + date: this.date, + albumid: this.albumid, + description: this.description + }; +}; + + +/** + * Album module methods. + */ +exports.create_album = function (req, res) { + async.waterfall([ + // make sure the albumid is valid + function (cb) { + if (!req.body || !req.body.name) { + cb(helpers.no_such_album()); + return; + } + + // UNDONE: we should add some code to make sure the album + // doesn't already exist! + cb(null); + }, + + function (cb) { + album_data.create_album(req.body, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var a = new Album(results); + helpers.send_success(res, {album: a.response_obj() }); + } + }); +}; + + +exports.album_by_name = function (req, res) { + async.waterfall([ + // get the album + function (cb) { + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else if (!results) { + helpers.send_failure(res, helpers.no_such_album()); + } else { + var a = new Album(album_data); + helpers.send_success(res, { album: a.response_obj() }); + } + }); +}; + + + +exports.list_all = function (req, res) { + album_data.all_albums("date", true, 0, 25, function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var out = []; + if (results) { + for (var i = 0; i < results.length; i++) { + out.push(new Album(results[i]).response_obj()); + } + } + helpers.send_success(res, { albums: out }); + } + }); +}; + + +exports.photos_for_album = function(req, res) { + var page_num = req.query.page ? req.query.page : 0; + var page_size = req.query.page_size ? req.query.page_size : 1000; + + page_num = parseInt(page_num); + page_size = parseInt(page_size); + if (isNaN(page_num)) page_num = 0; + if (isNaN(page_size)) page_size = 1000; + + var album; + async.waterfall([ + function (cb) { + // first get the album. + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + album = new Album(album_data); + album.photos(page_num, page_size, cb); + }, + function (photos, cb) { + var out = []; + for (var i = 0; i < photos.length; i++) { + out.push(photos[i].response_obj()); + } + cb(null, out); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + return; + } + if (!results) results = []; + var out = { photos: results, + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + + +exports.add_photo_to_album = function (req, res) { + var album; + async.waterfall([ + // make sure we have everything we need. + function (cb) { + if (!req.body) + cb(helpers.missing_data("POST data")); + else if (!req.files || !req.files.photo_file) + cb(helpers.missing_data("a file")); + else if (!helpers.is_image(req.files.photo_file.name)) + cb(helpers.not_image()); + else + // get the album + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + + album = new Album(album_data); + req.body.filename = req.files.photo_file.name; + album.add_photo(req.body, req.files.photo_file.path, cb); + } + ], + function (err, p) { + if (err) { + helpers.send_failure(res, err); + return; + } + var out = { photo: p.response_obj(), + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + diff --git a/Chapter08/02_create_album/app/handlers/helpers.js b/Chapter08/02_create_album/app/handlers/helpers.js new file mode 100644 index 0000000..97ac782 --- /dev/null +++ b/Chapter08/02_create_album/app/handlers/helpers.js @@ -0,0 +1,95 @@ + +var path = require('path'); + + +exports.version = '0.1.0'; + + + +exports.send_success = function(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +exports.send_failure = function(res, err) { + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +exports.error_for_resp = function (err) { + if (!err instanceof Error) { + console.error("** Unexpected error type! :" + + err.constructor.name); + return JSON.stringify(err); + } else { + var code = err.code ? err.code : err.name; + return JSON.stringify({ error: code, + message: err.message }); + } +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err)); +}; + + +exports.is_image = function (filename) { + switch (path.extname(filename).toLowerCase()) { + case '.jpg': case '.jpeg': case '.png': case '.bmp': + case '.gif': case '.tif': case '.tiff': + return true; + } + + return false; +}; + + +exports.invalid_resource = function () { + return exports.error("invalid_resource", + "The requested resource does not exist."); +}; + + +exports.missing_data = function (what) { + return exports.error("missing_data", + "You must include " + what); +} + + +exports.not_image = function () { + return exports.error("not_image_file", + "The uploaded file must be an image file."); +}; + + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + +exports.http_code_for_error = function (err) { + switch (err.message) { + case "no_such_album": + return 403; + case "invalid_resource": + return 404; + } + return 503; +} + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; diff --git a/Chapter08/02_create_album/app/handlers/pages.js b/Chapter08/02_create_album/app/handlers/pages.js new file mode 100644 index 0000000..70c9ff4 --- /dev/null +++ b/Chapter08/02_create_album/app/handlers/pages.js @@ -0,0 +1,31 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generate = function (req, res) { + + var page = req.params.page_name; + if (req.params.sub_page && req.params.page_name == 'admin') + page = req.params.page_name + "_" + req.params.sub_page; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; diff --git a/Chapter08/02_create_album/app/local.config.js b/Chapter08/02_create_album/app/local.config.js new file mode 100644 index 0000000..dc52aa4 --- /dev/null +++ b/Chapter08/02_create_album/app/local.config.js @@ -0,0 +1,12 @@ + + +exports.config = { + db_config: { + host: "localhost", + // use default "port" + poolSize: 20 + }, + + static_content: "../static/" +}; + diff --git a/Chapter08/02_create_album/app/package.json b/Chapter08/02_create_album/app/package.json new file mode 100644 index 0000000..f062c9b --- /dev/null +++ b/Chapter08/02_create_album/app/package.json @@ -0,0 +1,11 @@ +{ + "name": "Photo-Sharing", + "description": "Our Photo Sharing Application with static middleware", + "version": "0.0.2", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x", + "mongodb": "1.2.x" + } +} diff --git a/Chapter08/02_create_album/app/server.js b/Chapter08/02_create_album/app/server.js new file mode 100644 index 0000000..08e7e1f --- /dev/null +++ b/Chapter08/02_create_album/app/server.js @@ -0,0 +1,48 @@ + +var express = require('express'); +var app = express(); + +var db = require('./data/db.js'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.logger('dev')); +app.use(express.bodyParser({ keepExtensions: true })); +app.use(express.static(__dirname + "/../static")); + +app.get('/v1/albums.json', album_hdlr.list_all); +app.put('/v1/albums.json', album_hdlr.create_album); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); +app.get('/v1/albums/:album_name/photos.json', album_hdlr.photos_for_album); +app.put('/v1/albums/:album_name/photos.json', album_hdlr.add_photo_to_album); + + +app.get('/pages/:page_name', page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', page_hdlr.generate); + + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + + + +db.init(function (err, results) { + if (err) { + console.error("** FATAL ERROR ON STARTUP: "); + console.error(err); + process.exit(-1); + } + + app.listen(8080); +}); + diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_01.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_02.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_03.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_04.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_05.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_06.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_07.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_08.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/australia2010/aus_09.jpg b/Chapter08/02_create_album/static/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/italy2012/picture_01.jpg b/Chapter08/02_create_album/static/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/italy2012/picture_02.jpg b/Chapter08/02_create_album/static/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/italy2012/picture_03.jpg b/Chapter08/02_create_album/static/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/italy2012/picture_04.jpg b/Chapter08/02_create_album/static/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/italy2012/picture_05.jpg b/Chapter08/02_create_album/static/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_001.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_002.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_003.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_004.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_005.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_006.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/albums/japan2010/picture_007.jpg b/Chapter08/02_create_album/static/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/02_create_album/static/content/admin_add_album.js b/Chapter08/02_create_album/static/content/admin_add_album.js new file mode 100644 index 0000000..f2987d6 --- /dev/null +++ b/Chapter08/02_create_album/static/content/admin_add_album.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_album.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter08/02_create_album/static/content/admin_add_photos.js b/Chapter08/02_create_album/static/content/admin_add_photos.js new file mode 100644 index 0000000..350e536 --- /dev/null +++ b/Chapter08/02_create_album/static/content/admin_add_photos.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_photos.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter08/02_create_album/static/content/admin_home.js b/Chapter08/02_create_album/static/content/admin_home.js new file mode 100644 index 0000000..65f31a2 --- /dev/null +++ b/Chapter08/02_create_album/static/content/admin_home.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_home.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page +/* $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + */ + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter08/02_create_album/static/content/album.js b/Chapter08/02_create_album/static/content/album.js new file mode 100644 index 0000000..c4d918e --- /dev/null +++ b/Chapter08/02_create_album/static/content/album.js @@ -0,0 +1,67 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +$.urlParam = function(name){ + var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); + if (!results) + { + return 0; + } + return results[1] || 0; +} \ No newline at end of file diff --git a/Chapter08/02_create_album/static/content/home.js b/Chapter08/02_create_album/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter08/02_create_album/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; 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v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window); \ No newline at end of file diff --git a/Chapter08/02_create_album/static/content/mustache.js b/Chapter08/02_create_album/static/content/mustache.js new file mode 100644 index 0000000..0148d29 --- /dev/null +++ b/Chapter08/02_create_album/static/content/mustache.js @@ -0,0 +1,625 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // diff --git a/Chapter08/02_create_album/static/templates/admin_add_photos.html b/Chapter08/02_create_album/static/templates/admin_add_photos.html new file mode 100644 index 0000000..d9cbe8d --- /dev/null +++ b/Chapter08/02_create_album/static/templates/admin_add_photos.html @@ -0,0 +1,86 @@ +
+ +
+
Add to Album:
+
+ +
+
Image:
+
+
Description
+
+
+ + + + + +
+ + diff --git a/Chapter08/02_create_album/static/templates/admin_home.html b/Chapter08/02_create_album/static/templates/admin_home.html new file mode 100644 index 0000000..4db4cf1 --- /dev/null +++ b/Chapter08/02_create_album/static/templates/admin_home.html @@ -0,0 +1,7 @@ + +

Admin Operations

+ + diff --git a/Chapter08/02_create_album/static/templates/album.html b/Chapter08/02_create_album/static/templates/album.html new file mode 100644 index 0000000..520560a --- /dev/null +++ b/Chapter08/02_create_album/static/templates/album.html @@ -0,0 +1,19 @@ +
+ {{#has_photos}} +

There are {{ has_photos }} photos in this album

+ {{/has_photos}} + {{#photos}} +
+
+
+
+

{{ desc }}

+
+
+ {{/photos}} +
+ {{^photos}} +

This album does't have any photos in it, sorry.

+ {{/photos}} +

diff --git a/Chapter08/02_create_album/static/templates/home.html b/Chapter08/02_create_album/static/templates/home.html new file mode 100644 index 0000000..a7d1436 --- /dev/null +++ b/Chapter08/02_create_album/static/templates/home.html @@ -0,0 +1,16 @@ +
+ Admin +
+
+

There are {{ albums.length }} albums

+
    + {{#albums}} +
  • + {{name}} +
    • + {{/albums}} + {{^albums}} +
  • Sorry, there are currently no albums
    • + {{/albums}} +
+
diff --git a/Chapter08/0x_with_user_auth/app/basic.html b/Chapter08/0x_with_user_auth/app/basic.html new file mode 100644 index 0000000..0d966da --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/basic.html @@ -0,0 +1,25 @@ + + + + Photo Album + + + + + + + + + + + + + + + + + diff --git a/Chapter08/0x_with_user_auth/app/data/album.js b/Chapter08/0x_with_user_auth/app/data/album.js new file mode 100644 index 0000000..f423c24 --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/data/album.js @@ -0,0 +1,169 @@ + +var fs = require('fs'), + crypto = require("crypto"), + local = require('../local.config.js'), + db = require('./db.js'), + path = require("path"), + async = require('async'), + backhelp = require("./backend_helpers.js"); + +exports.version = "0.1.0"; + + +exports.create_album = function (data, callback) { + var final_album; + var write_succeeded = false; + async.waterfall([ + // validate data. + function (cb) { + try { + backhelp.verify(data, + [ "name", + "title", + "date", + "description" ]); + if (!backhelp.valid_filename(data.name)) + throw invalid_album_name(); + } catch (e) { + cb(e); + } + cb(null, data); + }, + + // create the album in mongo. + function (album_data, cb) { + var write = JSON.parse(JSON.stringify(album_data)); + write._id = album_data.name; + db.albums.insert(write, { w: 1, safe: true }, cb); + }, + + // make sure the folder exists. + function (new_album, cb) { + write_succeeded = true; + final_album = new_album[0]; + fs.mkdir(local.config.static_content + + "albums/" + data.name, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err) { + if (write_succeeded) + db.albums.remove({ _id: data.name }, function () {}); + + if (err instanceof Error && err.code == 11000) + callback(backhelp.album_already_exists()); + else if (err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err); + } else { + callback(err, err ? null : final_album); + } + }); +}; + + +exports.album_by_name = function (name, callback) { + db.albums.find({ _id: name }).toArray(function (err, results) { + if (err) { + callback(err); + return; + } + + if (results.length == 0) { + callback(null, null); + } else if (results.length == 1) { + callback(null, results[0]); + } else { + console.error("More than one album named: " + name); + console.error(results); + callback(backutils.db_error()); + } + }); +}; + + +exports.photos_for_album = function (album_name, pn, ps, callback) { + var sort = { date: -1 }; + db.photos.find({ albumid: album_name }) + .skip(pn) + .limit(ps) + .sort("date") + .toArray(callback); +}; + + + +exports.all_albums = function (sort_field, sort_desc, skip, count, callback) { + var sort = {}; + sort[sort_field] = sort_desc ? -1 : 1; + db.albums.find() + .sort(sort) + .limit(count) + .skip(skip) + .toArray(callback); +}; + + + +exports.add_photo = function (photo_data, path_to_photo, callback) { + var final_photo; + var base_fn = path.basename(path_to_photo).toLowerCase(); + async.waterfall([ + // validate data + function (cb) { + try { + backhelp.verify(photo_data, + [ "albumid", + "description", + "date" ]); + + photo_data.filename = base_fn; + + if (!backhelp.valid_filename(photo_data.albumid)) + throw invalid_album_name(); + } catch (e) { + cb(e); + } + + cb(null, photo_data); + }, + + // add the photo to the collection + function (pd, cb) { + pd._id = pd.albumid + "_" + pd.filename; + db.photos.insert(pd, { w: 1, safe: true }, cb); + }, + + // now copy the temp file to static content + function (new_photo, cb) { + final_photo = new_photo[0]; + + var save_path = local.config.static_content + "albums/" + + photo_data.albumid + "/" + base_fn; + + backhelp.file_copy(path_to_photo, save_path, true, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err && err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err, err ? null : final_photo); + }); + +}; + + + +function invalid_album_name() { + return backhelp.error("invalid_album_name", + "Album names can have letters, #s, _ and, -"); +} +function invalid_filename() { + return backhelp.error("invalid_filename", + "Filenames can have letters, #s, _ and, -"); +} + diff --git a/Chapter08/0x_with_user_auth/app/data/backend_helpers.js b/Chapter08/0x_with_user_auth/app/data/backend_helpers.js new file mode 100644 index 0000000..35991f6 --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/data/backend_helpers.js @@ -0,0 +1,106 @@ + +var fs = require('fs'); + + +exports.verify = function (data, field_names) { + for (var i = 0; i < field_names.length; i++) { + if (!data[field_names[i]]) { + throw exports.error("missing_data", + field_names[i] + " not optional"); + } + } + + return true; +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err.message)); +} + + + +/** + * Possible signatures: + * src, dst, callback + * src, dst, can_overwrite, callback + */ +exports.file_copy = function () { + + var src, dst, callback; + var can_overwrite = false; + + if (arguments.length == 3) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[2]; + } else if (arguments.length == 4) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[3]; + can_overwrite = arguments[2] + } + + function copy(err) { + var is, os; + + if (!err && !can_overwrite) { + return callback(backhelp.error("file_exists", + "File " + dst + " exists.")); + } + + fs.stat(src, function (err) { + if (err) { + return callback(err); + } + + is = fs.createReadStream(src); + os = fs.createWriteStream(dst); + is.on('end', function () { callback(null); }); + is.on('error', function (e) { callback(e); }); + is.pipe(os); + }); + } + + fs.stat(dst, copy); +}; + + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.db_error = function () { + return exports.error("server_error", + "Something horrible has happened with our database!"); +}; + +exports.album_already_exists = function () { + return exports.error("album_already_exists", + "An album with this name already exists."); +}; + +exports.missing_data = function (field) { + return exports.error("missing_data", "You must provide: " + field); +}; + +exports.no_such_user = function () { + return exports.error("no_such_user", + "The specified user does not exist"); +}; + + +exports.user_already_registered = function () { + return exports.error("user_already_registered", + "This user appears to exist already!"); +}; + + diff --git a/Chapter08/0x_with_user_auth/app/data/db.js b/Chapter08/0x_with_user_auth/app/data/db.js new file mode 100644 index 0000000..76749e2 --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/data/db.js @@ -0,0 +1,63 @@ +var Db = require('mongodb').Db, + Connection = require('mongodb').Connection, + Server = require('mongodb').Server, + async = require('async'), + local = require("../local.config.js"); + +var host = local.config.db_config.host + ? local.config.db_config.host + : 'localhost'; +var port = local.config.db_config.port + ? local.config.db_config.port + : Connection.DEFAULT_PORT; +var ps = local.config.db_config.poolSize + ? local.config.db_config.poolSize : 5; + +var db = new Db('PhotoAlbums', + new Server(host, port, + { auto_reconnect: true, + poolSize: ps}), + { w: 1 }); + +/** + * Currently for initialisation, we just want to open + * the database. We won't even attempt to start up + * if this fails, as it's pretty pointless. + */ +exports.init = function (callback) { + async.waterfall([ + // 1. open database connection + function (cb) { + console.log("** 1. open db"); + db.open(cb); + }, + + // 2. create collections for our albums and photos. if + // they already exist, then we're good. + function (db_conn, cb) { + console.log("** 2. create albums and photos collections."); + db.collection("albums", cb); + }, + + function (albums_coll, cb) { + exports.albums = albums_coll; + db.collection("photos", cb); + }, + + function (photos_coll, cb) { + exports.photos = photos_coll; + db.collection("users", cb); + }, + + function (users_coll, cb) { + exports.users = users_coll; + cb(null); + } + ], callback); +}; + + +exports.albums = null; +exports.photos = null; +exports.users = null; + diff --git a/Chapter08/0x_with_user_auth/app/data/user.js b/Chapter08/0x_with_user_auth/app/data/user.js new file mode 100644 index 0000000..d3a80ab --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/data/user.js @@ -0,0 +1,109 @@ + +var async = require('async'), + bcrypt = require('bcrypt'), + db = require("./db.js"), + uuid = require('node-uuid'), + backhelp = require("./backend_helpers.js"); + + +exports.version = "0.1.0"; + +exports.user_by_uuid = function (uuid, callback) { + if (!uuid) + callback(backhelp.missing_data("uuid")); + else + user_by_field("user_uuid", uuid, callback); +}; + +exports.user_by_display_name = function (dn, callback) { + if (!dn) + callback(backhelp.missing_data("display_name")); + else + user_by_field("display_name", dn, callback); +} + +exports.user_by_email_address = function (email, callback) { + if (!email) + callback(backhelp.missing_data("email")); + else + user_by_field("email_address", email, callback); +}; + + +exports.register = function (email, display_name, password, callback) { + async.waterfall([ + // validate ze params + function (cb) { + if (!email || email.indexOf("@") == -1) + cb(backhelp.missing_data("email")); + else if (!display_name) + cb(backhelp.missing_data("display_name")); + else if (!password) + cb(backhelp.missing_data("password")); + else + // generate a password hash + bcrypt.hash(password, 10, cb); + }, + + // create the album in mongo. + function (hash, cb) { + var userid = uuid(); + // email must be unique, so use it as id + var write = { + _id: email_address, + userid: userid, + email_address: email, + display_name: display_name, + password: hash, + first_seen_date: now_in_s(), + last_modified_date: now_in_s(), + deleted: false + }; + db.users.insert(write, { w: 1, safe: true }, cb); + }, + + // fetch and return the new user. + function (results, cb) { + cb(null, results[0]); + } + ], + function (err, user_data) { + if (err) { + if (err instanceof Error && err.code == 11000) + callback(backhelp.user_already_registered()); + else + callback (err); + } else { + callback(null, user_data); + } + }); +}; + + + +function user_by_field (field, value, callback) { + var o = {}; + o[field] = value; + + db.albums.find( o ).toArray(function (err, results) { + if (err) { + callback(err); + return; + } + if (results.length == 0) { + callback(null, null); + } else if (results.length == 1) { + callback(null, results[0]); + } else { + console.error("More than one user matching field: " + value); + console.error(results); + callback(backutils.db_error()); + } + }); +} + + +function now_in_s() { + return Math.round((new Date()).getTime() / 1000); +} + diff --git a/Chapter08/0x_with_user_auth/app/handlers/albums.js b/Chapter08/0x_with_user_auth/app/handlers/albums.js new file mode 100644 index 0000000..ac2da86 --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/handlers/albums.js @@ -0,0 +1,259 @@ + +var helpers = require('./helpers.js'), + album_data = require("../data/album.js"), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +/** + * Album class. + */ +function Album (album_data) { + this.name = album_data.name; + this.date = album_data.date; + this.title = album_data.title; + this.description = album_data.description; + this._id = album_data._id; +} + +Album.prototype.name = null; +Album.prototype.date = null; +Album.prototype.title = null; +Album.prototype.description = null; + +Album.prototype.response_obj = function () { + return { name: this.name, + date: this.date, + title: this.title, + description: this.description }; +}; +Album.prototype.photos = function (pn, ps, callback) { + if (this.album_photos != undefined) { + callback(null, this.album_photos); + return; + } + + album_data.photos_for_album( + this.name, + pn, ps, + function (err, results) { + if (err) { + callback(err); + return; + } + + var out = []; + for (var i = 0; i < results.length; i++) { + out.push(new Photo(results[i])); + } + + this.album_photos = out; + callback(null, this.album_photos); + } + ); +}; +Album.prototype.add_photo = function (data, path, callback) { + album_data.add_photo(data, path, function (err, photo_data) { + if (err) + callback(err); + else { + var p = new Photo(photo_data); + if (this.all_photos) + this.all_photos.push(p); + else + this.app_photos = [ p ]; + + callback(null, p); + } + }); +}; + + + + +/** + * Photo class. + */ +function Photo (photo_data) { + this.filename = photo_data.filename; + this.date = photo_data.date; + this.albumid = photo_data.albumid; + this.description = photo_data.description; + this._id = photo_data._id; +} +Photo.prototype._id = null; +Photo.prototype.filename = null; +Photo.prototype.date = null; +Photo.prototype.albumid = null; +Photo.prototype.description = null; +Photo.prototype.response_obj = function() { + return { + filename: this.filename, + date: this.date, + albumid: this.albumid, + description: this.description + }; +}; + + +/** + * Album module methods. + */ +exports.create_album = function (req, res) { + async.waterfall([ + // make sure the albumid is valid + function (cb) { + if (!req.body || !req.body.name) { + cb(helpers.no_such_album()); + return; + } + + // UNDONE: we should add some code to make sure the album + // doesn't already exist! + cb(null); + }, + + function (cb) { + album_data.create_album(req.body, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var a = new Album(results); + helpers.send_success(res, {album: a.response_obj() }); + } + }); +}; + + +exports.album_by_name = function (req, res) { + async.waterfall([ + // get the album + function (cb) { + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else if (!results) { + helpers.send_failure(res, helpers.no_such_album()); + } else { + var a = new Album(album_data); + helpers.send_success(res, { album: a.response_obj() }); + } + }); +}; + + + +exports.list_all = function (req, res) { + album_data.all_albums("date", true, 0, 25, function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var out = []; + if (results) { + for (var i = 0; i < results.length; i++) { + out.push(new Album(results[i]).response_obj()); + } + } + helpers.send_success(res, { albums: out }); + } + }); +}; + + +exports.photos_for_album = function(req, res) { + var page_num = req.query.page ? req.query.page : 0; + var page_size = req.query.page_size ? req.query.page_size : 1000; + + page_num = parseInt(page_num); + page_size = parseInt(page_size); + if (isNaN(page_num)) page_num = 0; + if (isNaN(page_size)) page_size = 1000; + + var album; + async.waterfall([ + function (cb) { + // first get the album. + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + album = new Album(album_data); + album.photos(page_num, page_size, cb); + }, + function (photos, cb) { + var out = []; + for (var i = 0; i < photos.length; i++) { + out.push(photos[i].response_obj()); + } + cb(null, out); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + return; + } + if (!results) results = []; + var out = { photos: results, + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + + +exports.add_photo_to_album = function (req, res) { + var album; + async.waterfall([ + // make sure we have everything we need. + function (cb) { + if (!req.body) + cb(helpers.missing_data("POST data")); + else if (!req.files || !req.files.photo_file) + cb(helpers.missing_data("a file")); + else if (!helpers.is_image(req.files.photo_file.name)) + cb(helpers.not_image()); + else + // get the album + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + + album = new Album(album_data); + req.body.filename = req.files.photo_file.name; + album.add_photo(req.body, req.files.photo_file.path, cb); + } + ], + function (err, p) { + if (err) { + helpers.send_failure(res, err); + return; + } + var out = { photo: p.response_obj(), + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + diff --git a/Chapter08/0x_with_user_auth/app/handlers/helpers.js b/Chapter08/0x_with_user_auth/app/handlers/helpers.js new file mode 100644 index 0000000..e6f0a13 --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/handlers/helpers.js @@ -0,0 +1,114 @@ + +var path = require('path'); + + +exports.version = '0.1.0'; + + + + +exports.send_success = function(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +exports.send_failure = function(res, err) { + console.log(err); + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +exports.error_for_resp = function (err) { + if (!err instanceof Error) { + console.error("** Unexpected error type! :" + + err.constructor.name); + return JSON.stringify(err); + } else { + var code = err.code ? err.code : err.name; + return JSON.stringify({ error: code, + message: err.message }); + } +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err)); +}; + + +exports.is_image = function (filename) { + switch (path.extname(filename).toLowerCase()) { + case '.jpg': case '.jpeg': case '.png': case '.bmp': + case '.gif': case '.tif': case '.tiff': + return true; + } + + return false; +}; + + +exports.invalid_resource = function () { + return exports.error("invalid_resource", + "The requested resource does not exist."); +}; + + +exports.missing_data = function (what) { + return exports.error("missing_data", + "You must include " + what); +} + + +exports.not_image = function () { + return exports.error("not_image_file", + "The uploaded file must be an image file."); +}; + + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + +exports.http_code_for_error = function (err) { + switch (err.message) { + case "no_such_album": + return 403; + case "invalid_resource": + return 404; + case "invalid_email_address": + return 403; + case "no_such_user": + return 403; + } + + console.log("*** Error needs HTTP response code: " + err.message); + return 503; +} + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.invalid_email_address = function () { + return exports.error("invalid_email_address", + "That's not a valid email address, sorry"); +}; + +exports.auth_failed = function () { + return exports.error("auth_failure", + "Invalid email address / password combination."); +}; \ No newline at end of file diff --git a/Chapter08/0x_with_user_auth/app/handlers/pages.js b/Chapter08/0x_with_user_auth/app/handlers/pages.js new file mode 100644 index 0000000..3e9baae --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/handlers/pages.js @@ -0,0 +1,42 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generateAdmin = function (req, res) { + req.params.page_name = 'admin'; + exports.generate(req, res); +}; + +exports.generate = function (req, res) { + + var page = req.params.page_name; + if (req.params.sub_page && req.params.page_name == 'admin') + page = req.params.page_name + "_" + req.params.sub_page; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, 500, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; + +// if we made it here, then we're logged in. redirect to admin home +exports.login = function (req, res) { + res.redirect("/pages/admin/home"); + res.end(); +}; diff --git a/Chapter08/0x_with_user_auth/app/handlers/users.js b/Chapter08/0x_with_user_auth/app/handlers/users.js new file mode 100644 index 0000000..cfadfbb --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/handlers/users.js @@ -0,0 +1,170 @@ +var helpers = require('./helpers.js'), + user_data = require("../data/user.js"), + async = require('async'), + bcrypt = require('bcrypt'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +function User (user_data) { + this.uuid = user_data["user_uuid"]; + this.email_address = user_data["email_address"]; + this.display_name = user_data["display_name"]; + this.password = user_data["password"]; + this.first_seen_date = user_data["first_seen_date"]; + this.last_modified_date = user_data["last_modified_date"]; + this.deleted = user_data["deleted"]; +} + +User.prototype.uuid = null; +User.prototype.email_address = null; +User.prototype.display_name = null; +User.prototype.password = null; +User.prototype.first_seen_date = null; +User.prototype.last_modified_date = null; +User.prototype.deleted = false; +User.prototype.check_password = function (pw, callback) { + bcrypt.compare(pw, this.password, callback); +}; +User.prototype.response_obj = function () { + return { + uuid: this.uuid, + email_address: this.email_address, + display_name: this.display_name, + first_seen_date: this.first_seen_date, + last_modified_date: this.last_modified_date + }; +}; + + + +exports.register = function (req, res) { + async.waterfall([ + function (cb) { + var em = req.body.email_address; + if (!em || em.indexOf("@") == -1) + cb(helpers.invalid_email_address()); + else if (!req.body.display_name) + cb(helpers.missing_data("display_name")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // register da user. + function (cb) { + user_data.register( + req.body.email_address, + req.body.display_name, + req.body.password, + cb); + }, + + // mark user as logged in + function (user_data, cb) { + req.session.logged_in = true; + req.session.logged_in_display_name = req.body.display_name; + req.session.logged_in_date = new Date(); + cb(null, user_data); + } + ], + function (err, user_data) { + if (err) { + helpers.send_failure(res, err); + } else { + var u = new User(user_data); + helpers.send_success(res, {user: u.response_obj() }); + } + }); +}; + + +exports.login = function (req, res) { + var em = req.body.email_address + ? req.body.email_address.trim().toLowerCase() + : ""; + + async.waterfall([ + function (cb) { + if (!em) + cb(helpers.missing_data("email_address")); + else if (req.session + && req.session.logged_in_email_address == em) + cb(helpers.error("already_logged_in", "")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // first get the user by the email address. + function (cb) { + user_data.user_by_email_address(em, cb); + }, + + // check the password + function (user_data, cb) { + var u = new User(user_data); + u.check_password(req.body.password, cb); + }, + + function (auth_ok, cb) { + if (!auth_ok) { + cb(helpers.auth_failed()); + return; + } + + req.session.logged_in = true; + req.session.logged_in_email_address = req.body.email_address; + req.session.logged_in_date = new Date(); + cb(null); + } + ], + function (err, results) { + if (!err || err.message == "already_logged_in") { + helpers.send_success(res, { logged_in: true }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.user_by_display_name = function (req, res) { + async.waterfall([ + // first get the user by the email address. + function (cb) { + user_data.user_by_display_name(req.body.email_address, cb); + } + ], + function (err, u) { + if (!err) { + helpers.send_success(res, { user: u.response_obj() }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.authenticate_API = function (un, pw, callback) { + async.waterfall([ + function (cb) { + user_data.user_by_email_address(un, cb); + }, + + function (user_data, cb) { + var u = new User(user_data); + u.check_password(pw, cb); + } + ], + function (err, results) { + if (!err) { + callback(null, un); + } else { + callback(new Error("bogus credentials")); + } + }); +}; diff --git a/Chapter08/0x_with_user_auth/app/local.config.js b/Chapter08/0x_with_user_auth/app/local.config.js new file mode 100644 index 0000000..85e0a8d --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/local.config.js @@ -0,0 +1,16 @@ + + +exports.config = { + db_config: { + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums", + + pooled_connections: 125, + idle_timeout_millis: 30000 + }, + + static_content: "../static/" +}; + diff --git a/Chapter08/0x_with_user_auth/app/package.json b/Chapter08/0x_with_user_auth/app/package.json new file mode 100644 index 0000000..b1a3a50 --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/package.json @@ -0,0 +1,13 @@ +{ + "name": "Photo-Sharing", + "description": "Our Photo Sharing Application with static middleware", + "version": "0.0.2", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x", + "mongodb": "1.2.x", + "bcrypt": "0.x", + "node-uuid": "1.x" + } +} diff --git a/Chapter08/0x_with_user_auth/app/server.js b/Chapter08/0x_with_user_auth/app/server.js new file mode 100644 index 0000000..beacbbc --- /dev/null +++ b/Chapter08/0x_with_user_auth/app/server.js @@ -0,0 +1,113 @@ + +var express = require('express'); +var app = express(); + +var db = require('./data/db.js'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + user_hdlr = require('./handlers/users.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.logger('dev')); +app.use(express.bodyParser({ keepExtensions: true })); +app.use(express.static(__dirname + "/../static")); +app.use(express.cookieParser("kitten on keyboard")); +app.use(express.cookieSession({ + secret: "FLUFFY BUNNIES", + maxAge: 86400000 +})); + +app.get('/v1/albums.json', album_hdlr.list_all); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); +app.put('/v1/albums.json', requireAPILogin, album_hdlr.create_album); + +app.get('/v1/albums/:album_name/photos.json', album_hdlr.photos_for_album); +app.put('/v1/albums/:album_name/photos.json', + requireAPILogin, album_hdlr.add_photo_to_album); + + +// add-on requests we support for the purposes of the web interface +// to the server. +app.get('/pages/admin/:sub_page', + requirePageLogin, page_hdlr.generateAdmin); +app.get('/pages/:page_name', page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', page_hdlr.generate); +app.post('/service/login', user_hdlr.login); + +app.put('/v1/users.json', user_hdlr.register); +app.get('/v1/users/:display_name.json', user_hdlr.user_by_display_name); + + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + + +function requireAPILogin(req, res, next) { + // if they're using the API from the browser, then they'll be auth'd + if (req.session && req.session.logged_in) { + next(); + return; + } + var rha = req.headers.authorization; + if (rha && rha.search('Basic ') === 0) { + var creds = new Buffer(rha.split(' ')[1], 'base64').toString(); + var parts = creds.split(":"); + user_hdlr.authenticate_API( + parts[0], + parts[1], + function (err, resp) { + if (!err && resp) { + next(); + } else + need_auth(req, res); + } + ); + } else + need_auth(req, res); +} + + +function requirePageLogin(req, res, next) { + if (req.session && req.session.logged_in) { + next(); + } else { + res.redirect("/pages/login"); + } +} + +function need_auth(req, res) { + res.header('WWW-Authenticate', + 'Basic realm="Authorization required"'); + if (req.headers.authorization) { + // no more than 1 failure / 5s + setTimeout(function () { + res.send('Authentication required\n', 401); + }, 5000); + } else { + res.send('Authentication required\n', 401); + } +} + + + +db.init(function (err, results) { + if (err) { + console.error("** FATAL ERROR ON STARTUP: "); + console.error(err); + process.exit(-1); + } + + console.log("Initialisation complete. Running Server."); + app.listen(8080); +}); + + diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_01.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_02.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_03.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_04.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_05.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_06.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_07.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_08.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_09.jpg b/Chapter08/0x_with_user_auth/static/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_01.jpg b/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_02.jpg b/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_03.jpg b/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_04.jpg b/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_05.jpg b/Chapter08/0x_with_user_auth/static/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_001.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_002.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_003.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_004.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_005.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_006.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_007.jpg b/Chapter08/0x_with_user_auth/static/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter08/0x_with_user_auth/static/content/#album.js# b/Chapter08/0x_with_user_auth/static/content/#album.js# new file mode 100644 index 0000000..442c047 --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/#album.js# @@ -0,0 +1,60 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +xundo \ No newline at end of file diff --git a/Chapter08/0x_with_user_auth/static/content/admin_add_album.js b/Chapter08/0x_with_user_auth/static/content/admin_add_album.js new file mode 100644 index 0000000..f2987d6 --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/admin_add_album.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_album.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter08/0x_with_user_auth/static/content/admin_add_photos.js b/Chapter08/0x_with_user_auth/static/content/admin_add_photos.js new file mode 100644 index 0000000..350e536 --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/admin_add_photos.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_photos.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter08/0x_with_user_auth/static/content/admin_home.js b/Chapter08/0x_with_user_auth/static/content/admin_home.js new file mode 100644 index 0000000..820f7fd --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/admin_home.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_home.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter08/0x_with_user_auth/static/content/album.js b/Chapter08/0x_with_user_auth/static/content/album.js new file mode 100644 index 0000000..c4d918e --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/album.js @@ -0,0 +1,67 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +$.urlParam = function(name){ + var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); + if (!results) + { + return 0; + } + return results[1] || 0; +} \ No newline at end of file diff --git a/Chapter08/0x_with_user_auth/static/content/home.js b/Chapter08/0x_with_user_auth/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); 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v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window); \ No newline at end of file diff --git a/Chapter08/0x_with_user_auth/static/content/login.js b/Chapter08/0x_with_user_auth/static/content/login.js new file mode 100644 index 0000000..fd52f1d --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/login.js @@ -0,0 +1,30 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/login.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page +// $.getJSON("/v1/users/logged_in.json", function (d) { +// $.extend(tdata, d); +// }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { +// if (tdata.data.logged_in) +// window.location = "/pages/admin/home"; +// else { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); +// } + }); + }(); +}); diff --git a/Chapter08/0x_with_user_auth/static/content/mustache.js b/Chapter08/0x_with_user_auth/static/content/mustache.js new file mode 100644 index 0000000..0148d29 --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/content/mustache.js @@ -0,0 +1,625 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // diff --git a/Chapter08/0x_with_user_auth/static/templates/admin_add_photos.html b/Chapter08/0x_with_user_auth/static/templates/admin_add_photos.html new file mode 100644 index 0000000..d9cbe8d --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/templates/admin_add_photos.html @@ -0,0 +1,86 @@ +
+ +
+
Add to Album:
+
+ +
+
Image:
+
+
Description
+
+
+ + + + + +
+ + diff --git a/Chapter08/0x_with_user_auth/static/templates/admin_home.html b/Chapter08/0x_with_user_auth/static/templates/admin_home.html new file mode 100644 index 0000000..4db4cf1 --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/templates/admin_home.html @@ -0,0 +1,7 @@ + +

Admin Operations

+ + diff --git a/Chapter08/0x_with_user_auth/static/templates/album.html b/Chapter08/0x_with_user_auth/static/templates/album.html new file mode 100644 index 0000000..fbcbda2 --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/templates/album.html @@ -0,0 +1,20 @@ + +
+ {{#has_photos}} +

There are {{ has_photos }} photos in this album

+ {{/has_photos}} + {{#photos}} +
+
+
+
+

{{ desc }}

+
+
+ {{/photos}} +
+ {{^photos}} +

This album does't have any photos in it, sorry.

+ {{/photos}} +

diff --git a/Chapter08/0x_with_user_auth/static/templates/home.html b/Chapter08/0x_with_user_auth/static/templates/home.html new file mode 100644 index 0000000..90ff5fc --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/templates/home.html @@ -0,0 +1,17 @@ +
+ Register | + Admin +
+
+

There are {{ albums.length }} albums

+
    + {{#albums}} +
  • + {{name}} +
    • + {{/albums}} + {{^albums}} +
  • Sorry, there are currently no albums
    • + {{/albums}} +
+
diff --git a/Chapter08/0x_with_user_auth/static/templates/login.html b/Chapter08/0x_with_user_auth/static/templates/login.html new file mode 100644 index 0000000..7bbcc3f --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/templates/login.html @@ -0,0 +1,49 @@ + +
+
+
+
Email address:
+
+
Password:
+
+
+
+ + + + diff --git a/Chapter08/0x_with_user_auth/static/templates/register.html b/Chapter08/0x_with_user_auth/static/templates/register.html new file mode 100644 index 0000000..2934caa --- /dev/null +++ b/Chapter08/0x_with_user_auth/static/templates/register.html @@ -0,0 +1,56 @@ + + +
+
+
+
Email address:
+
+
Display Name:
+
+
Password:
+
+
Password (confirm):
+
+
+
+ + + + diff --git a/Chapter08/0x_with_user_auth/test.jpg b/Chapter08/0x_with_user_auth/test.jpg new file mode 100644 index 0000000..6e4250a Binary files /dev/null and b/Chapter08/0x_with_user_auth/test.jpg differ diff --git a/Chapter09/01_mysql_demos/01_mysql_testing.js b/Chapter09/01_mysql_demos/01_mysql_testing.js new file mode 100644 index 0000000..05a352e --- /dev/null +++ b/Chapter09/01_mysql_demos/01_mysql_testing.js @@ -0,0 +1,309 @@ + +var pool = require('generic-pool'), + mysql = require('mysql'), + async = require('async'); + +var host = "localhost"; +var database = "PhotoAlbums"; +var user = "root"; +var password = ""; + + + + +/** + * Don't forget that for waterfall, it will stop and call the final + * "cleanup" function whenever it sees an error has been passed to + * one of the callback functions. + * + * Also, if a parameter is given to the callback, it will include + * those in the next function called in the waterfall. + */ +var dbclient; + +async.waterfall([ + + // 1. create database connection + function (cb) { + console.log("\n** 1. create connection."); + dbclient = mysql.createConnection({ + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums" + }); + + dbclient.connect(cb); + }, + + // 2. let's add a couple of albums. we will run them as separate + // queries. + function (results, cb) { + console.log("\n** 2. create albums."); + dbclient.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ "italy2012", "Spring Festival in Italy", "2012-02-15", + "I went to Italy for Spring Festival" ], + cb); + }, + + function (results, fields, cb) { + console.log(arguments); + console.log(fields); + console.log("\n** 2b. create albums."); + dbclient.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ "australia2010", "Vacation Down Under", "2010-10-20", + "Spent some time in Australia visiting Friends" ], + cb); + }, + + function (results, fields, cb) { + console.log(fields); + console.log("\n** 2c. create albums."); + dbclient.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ "japan2010", "Programming in Tokyo", "2010/06/10", + "I worked in Tokyo for a while." ], + cb); + }, + + // 3. let's add some photos to albums + function (results, fields, cb) { + console.log(fields); + // mysql is cool with this date format. + var pix = [ + { filename: "picture_01.jpg", + albumid: "italy2012", + description: "rome!", + date: "2012/02/15 16:20:40" }, + { filename: "picture_04.jpg", + albumid: "italy2012", + description: "fontana di trevi", + date: "2012/02/19 16:20:40" }, + { filename: "picture_02.jpg", + albumid: "italy2012", + description: "it's the vatican!", + date: "2012/02/17 16:35:04" }, + { filename: "picture_05.jpg", + albumid: "italy2012", + description: "rome!", + date: "2012/02/19 16:20:40" }, + { filename: "picture_03.jpg", + albumid: "italy2012", + description: "spanish steps", + date: "2012/02/18 16:20:40" }, + + { filename: "photo_05.jpg", + albumid: "japan2010", + description: "something nice", + date: "2010/06/14 12:21:40" }, + { filename: "photo_01.jpg", + albumid: "japan2010", + description: "tokyo tower!", + date: "2010/06/11 12:20:40" }, + { filename: "photo_06.jpg", + albumid: "japan2010", + description: "kitty cats", + date: "2010/06/14 12:23:40" }, + { filename: "photo_03.jpg", + albumid: "japan2010", + description: "shinjuku is nice", + date: "2010/06/12 08:80:40" }, + { filename: "photo_04.jpg", + albumid: "japan2010", + description: "eating sushi", + date: "2010/06/12 08:34:40" }, + { filename: "photo_02.jpg", + albumid: "japan2010", + description: "roppongi!", + date: "2010/06/12 07:44:40" }, + { filename: "photo_07.jpg", + albumid: "japan2010", + description: "moo cow oink pig woo!!", + date: "2010/06/15 12:55:40" }, + + { filename: "photo_001.jpg", + albumid: "australia2010", + description: "sydney!", + date: "2010/10/20 07:44:40" }, + { filename: "photo_002.jpg", + albumid: "australia2010", + description: "asdfasdf!", + date: "2010/10/20 08:24:40" }, + { filename: "photo_003.jpg", + albumid: "australia2010", + description: "qwerqwr!", + date: "2010/10/20 08:55:40" }, + { filename: "photo_004.jpg", + albumid: "australia2010", + description: "zzzxcv zxcv", + date: "2010/10/21 14:29:40" }, + { filename: "photo_005.jpg", + albumid: "australia2010", + description: "ipuoip", + date: "2010/10/22 19:08:40" }, + { filename: "photo_006.jpg", + albumid: "australia2010", + description: "asdufio", + date: "2010/10/22 22:15:40" } + ]; + + var q = "\ +INSERT INTO Photos (filename, album_name, description, date) \ + VALUES (?, ?, ?, ?)"; + + console.log("\n** 3. Add pictures."); + async.forEachSeries( + pix, + // run the query and call clbk to do next in array + // we do in serial because connection only does + // one thing at a time. + function (item, clbk) { + dbclient.query( + q, + [ item.filename, item.albumid, + item.description, item.date ], + clbk); + }, + cb); + }, + + function (cb) { + console.log(arguments); + // 4. list all albums + console.log("\n** 4. list albums"); + dbclient.query("SELECT * FROM Albums ORDER BY date DESC", cb); + }, + + function (rows, fields, cb) { + console.log(fields); + console.log(" -> dumping albums:"); + for (var i = 0; i < rows.length; i++) { + console.log(" -> Album: " + rows[i].name + + " (" + rows[i].date + ")"); + } + + // 5. find italy2012 album. + console.log("\n** 5. Find album."); + dbclient.query( + "SELECT * FROM Albums WHERE name = ?", + [ "italy2012" ], + cb); + }, + + function (rows, fields, cb) { + console.log(fields); + console.log(" -> dumping italy2012:"); + for (var i = 0; i < rows.length; i++) { + console.log(" -> Album: " + rows[i].name + + " (" + rows[i].date + ")"); + } + + // 6. find all photos in italy2012 album. sort by date, + // and return subset + console.log("\n** 6. Photos for albums."); + var q = "\ +SELECT * FROM Photos WHERE album_name = ?\ + ORDER BY date DESC LIMIT ?, ?"; + + dbclient.query(q, ["italy2012", 2, 5 ], cb); + }, + + function (rows, fields, cb) { + console.log(fields); + console.log(" -> dumping italy2012 photos:"); + for (var i = 0; i < rows.length; i++) { + console.log("Photo: " + rows[i].filename + + " (" + rows[i].date + ")"); + } + + // 7. replace the description in a photo + console.log("\n** 7. update photo."); + dbclient.query( + "UPDATE Photos SET description = ? \ + WHERE album_name = ? AND filename = ?", + [ "NO SHINJUKU! BAD!", "italy2012", "picture_03.jpg" ], + cb); + }, + + function (results, fields, cb) { + console.log(fields); + console.log(results); + console.log(" -> updated rows: " + results.affectedRows); + if (results.affectedRows != 1) { + cb(new Error("CRAP TEST 7 didn't affect 1 row!")); + return; + } + + // 8. delete a photo + console.log("\n** 8. delete photo."); + dbclient.query( + "DELETE FROM Photos WHERE filename = ? AND album_name = ?", + [ "photo_04.jpg", "japan2010" ], + cb); + }, + + function (results, fields, cb) { + console.log(fields); + console.log(results); + console.log(" -> deleted rows: " + results.affectedRows); + if (results.affectedRows != 1) { + cb(new Error("CRAP TEST 8 didn't affect 1 row!")); + return; + } + + // 9. delete an entire album and its photos. + // a. delete photos + console.log("\n** 9. delete entire album and photos"); + dbclient.query( + "DELETE FROM Photos WHERE album_name = ?", + [ "australia2012" ], + cb); + }, + + function (results, fields, cb) { + console.log(fields); + console.log(" -> delete photos rows: " + results.affectedRows); + console.log(results); + + // b. delete the album + dbclient.query( + "DELETE FROM Albums WHERE name = ?", + [ "australia2012" ], + cb); + }, + + function (results, fields, cb) { + console.log(fields); + console.log(" -> delete album rows: " + results.affectedRows); + console.log(results); + + // 10. ask for an album that doesn't exist. + console.log("\n** 10. Search for non-existant album."); + dbclient.query( + "SELECT * FROM Albums WHERE name = ?", + [ "asdfasdf" ], + cb); + }, + + function (rows, fields, cb) { + console.log(fields); + console.log(" -> asked for bogus, got " + rows.length + " rows"); + cb(null); + } +], +// waterfall cleanup function +function (err, results) { + if (err) { + console.log("Aw, there was an error: "); + console.log(err); + } else { + console.log("All operations completed without error."); + } + + dbclient.end(); +}); + + + diff --git a/Chapter09/01_mysql_demos/01_mysql_testing.js.bak b/Chapter09/01_mysql_demos/01_mysql_testing.js.bak new file mode 100644 index 0000000..481be7a --- /dev/null +++ b/Chapter09/01_mysql_demos/01_mysql_testing.js.bak @@ -0,0 +1,309 @@ + +var pool = require('generic-pool'), + mysql = require('mysql'), + async = require('async'); + +var host = "localhost"; +var database = "PhotoAlbums"; +var user = "root"; +var password = ""; + + +/** + * node-mysql sometimes adds extra data to callbacks to be helpful. + * this can mess up our waterfall, however, so we'll strip those + * out. + */ +function mscb(cb) { + return function (err, results) { + cb(err, results); + } +} + + + +/** + * Don't forget that for waterfall, it will stop and call the final + * "cleanup" function whenever it sees an error has been passed to + * one of the callback functions. + * + * Also, if a parameter is given to the callback, it will include + * those in the next function called in the waterfall. + */ +var dbclient; + +async.waterfall([ + + // 1. create database connection + function (cb) { + console.log("\n** 1. create connection."); + dbclient = mysql.createConnection({ + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums" + }); + + dbclient.connect(cb); + }, + + // 2. let's add a couple of albums. we will run them as separate + // queries. + function (results, cb) { + console.log("\n** 2. create albums."); + dbclient.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ "italy2012", "Spring Festival in Italy", "2012-02-15", + "I went to Italy for Spring Festival" ], + mscb(cb)); + }, + + function (results, cb) { + console.log(arguments); + console.log("\n** 2b. create albums."); + dbclient.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ "australia2010", "Vacation Down Under", "2010-10-20", + "Spent some time in Australia visiting Friends" ], + mscb(cb)); + }, + + function (results, cb) { + console.log("\n** 2c. create albums."); + dbclient.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ "japan2010", "Programming in Tokyo", "2010/06/10", + "I worked in Tokyo for a while." ], + mscb(cb)); + }, + + // 3. let's add some photos to albums + function (results, cb) { + // mysql is cool with this date format. + var pix = [ + { filename: "picture_01.jpg", + albumid: "italy2012", + description: "rome!", + date: "2012/02/15 16:20:40" }, + { filename: "picture_04.jpg", + albumid: "italy2012", + description: "fontana di trevi", + date: "2012/02/19 16:20:40" }, + { filename: "picture_02.jpg", + albumid: "italy2012", + description: "it's the vatican!", + date: "2012/02/17 16:35:04" }, + { filename: "picture_05.jpg", + albumid: "italy2012", + description: "rome!", + date: "2012/02/19 16:20:40" }, + { filename: "picture_03.jpg", + albumid: "italy2012", + description: "spanish steps", + date: "2012/02/18 16:20:40" }, + + { filename: "photo_05.jpg", + albumid: "japan2010", + description: "something nice", + date: "2010/06/14 12:21:40" }, + { filename: "photo_01.jpg", + albumid: "japan2010", + description: "tokyo tower!", + date: "2010/06/11 12:20:40" }, + { filename: "photo_06.jpg", + albumid: "japan2010", + description: "kitty cats", + date: "2010/06/14 12:23:40" }, + { filename: "photo_03.jpg", + albumid: "japan2010", + description: "shinjuku is nice", + date: "2010/06/12 08:80:40" }, + { filename: "photo_04.jpg", + albumid: "japan2010", + description: "eating sushi", + date: "2010/06/12 08:34:40" }, + { filename: "photo_02.jpg", + albumid: "japan2010", + description: "roppongi!", + date: "2010/06/12 07:44:40" }, + { filename: "photo_07.jpg", + albumid: "japan2010", + description: "moo cow oink pig woo!!", + date: "2010/06/15 12:55:40" }, + + { filename: "photo_001.jpg", + albumid: "australia2010", + description: "sydney!", + date: "2010/10/20 07:44:40" }, + { filename: "photo_002.jpg", + albumid: "australia2010", + description: "asdfasdf!", + date: "2010/10/20 08:24:40" }, + { filename: "photo_003.jpg", + albumid: "australia2010", + description: "qwerqwr!", + date: "2010/10/20 08:55:40" }, + { filename: "photo_004.jpg", + albumid: "australia2010", + description: "zzzxcv zxcv", + date: "2010/10/21 14:29:40" }, + { filename: "photo_005.jpg", + albumid: "australia2010", + description: "ipuoip", + date: "2010/10/22 19:08:40" }, + { filename: "photo_006.jpg", + albumid: "australia2010", + description: "asdufio", + date: "2010/10/22 22:15:40" } + ]; + + var q = "\ +INSERT INTO Photos (filename, album_name, description, date) \ + VALUES (?, ?, ?, ?)"; + + console.log("\n** 3. Add pictures."); + async.forEachSeries( + pix, + // run the query and call clbk to do next in array + // we do in serial because connection only does + // one thing at a time. + function (item, clbk) { + dbclient.query( + q, + [ item.filename, item.albumid, + item.description, item.date ], + clbk); + }, + cb); + }, + + function (cb) { + console.log(arguments); + // 4. list all albums + console.log("\n** 4. list albums"); + dbclient.query("SELECT * FROM Albums ORDER BY date DESC", mscb(cb)); + }, + + function (rows, cb) { + console.log(" -> dumping albums:"); + for (var i = 0; i < rows.length; i++) { + console.log(" -> Album: " + rows[i].name + + " (" + rows[i].date + ")"); + } + + // 5. find italy2012 album. + console.log("\n** 5. Find album."); + dbclient.query( + "SELECT * FROM Albums WHERE name = ?", + [ "italy2012" ], + mscb(cb)); + }, + + function (rows, cb) { + console.log(" -> dumping italy2012:"); + for (var i = 0; i < rows.length; i++) { + console.log(" -> Album: " + rows[i].name + + " (" + rows[i].date + ")"); + } + + // 6. find all photos in italy2012 album. sort by date, + // and return subset + console.log("\n** 6. Photos for albums."); + var q = "\ +SELECT * FROM Photos WHERE album_name = ?\ + ORDER BY date DESC LIMIT ?, ?"; + + dbclient.query(q, ["italy2012", 2, 5 ], mscb(cb)); + }, + + function (rows, cb) { + console.log(" -> dumping italy2012 photos:"); + for (var i = 0; i < rows.length; i++) { + console.log("Photo: " + rows[i].filename + + " (" + rows[i].date + ")"); + } + + // 7. replace the description in a photo + console.log("\n** 7. update photo."); + dbclient.query( + "UPDATE Photos SET description = ? \ + WHERE album_name = ? AND filename = ?", + [ "NO SHINJUKU! BAD!", "italy2012", "picture_03.jpg" ], + mscb(cb)); + }, + + function (results, cb) { + console.log(results); + console.log(" -> updated rows: " + results.affectedRows); + if (results.affectedRows != 1) { + cb(new Error("CRAP TEST 7 didn't affect 1 row!")); + return; + } + + // 8. delete a photo + console.log("\n** 8. delete photo."); + dbclient.query( + "DELETE FROM Photos WHERE filename = ? AND album_name = ?", + [ "photo_04.jpg", "japan2010" ], + mscb(cb)); + }, + + function (results, cb) { + console.log(results); + console.log(" -> deleted rows: " + results.affectedRows); + if (results.affectedRows != 1) { + cb(new Error("CRAP TEST 8 didn't affect 1 row!")); + return; + } + + // 9. delete an entire album and its photos. + // a. delete photos + console.log("\n** 9. delete entire album and photos"); + dbclient.query( + "DELETE FROM Photos WHERE album_name = ?", + [ "australia2012" ], + mscb(cb)); + }, + + function (results, cb) { + console.log(" -> delete photos rows: " + results.affectedRows); + console.log(results); + + // b. delete the album + dbclient.query( + "DELETE FROM Albums WHERE name = ?", + [ "australia2012" ], + mscb(cb)); + }, + + function (results, cb) { + console.log(" -> delete album rows: " + results.affectedRows); + console.log(results); + + // 10. ask for an album that doesn't exist. + console.log("\n** 10. Search for non-existant album."); + dbclient.query( + "SELECT * FROM Albums WHERE name = ?", + [ "asdfasdf" ], + mscb(cb)); + }, + + function (rows, cb) { + console.log(" -> asked for bogus, got " + rows.length + " rows"); + cb(null); + } +], +// waterfall cleanup function +function (err, results) { + if (err) { + console.log("Aw, there was an error: "); + console.log(err); + } else { + console.log("All operations completed without error."); + } + + dbclient.end(); +}); + + + diff --git a/Chapter09/01_mysql_demos/package.json b/Chapter09/01_mysql_demos/package.json new file mode 100644 index 0000000..00536fb --- /dev/null +++ b/Chapter09/01_mysql_demos/package.json @@ -0,0 +1,11 @@ +{ + "name": "MySQL-Demo", + "description": "Demonstrates Using MySQL Database connectivity", + "version": "0.0.1", + "private": true, + "dependencies": { + "async": "0.1.x", + "generic-pool": "2.x", + "mysql": "2.x" + } +} diff --git a/Chapter09/01_mysql_demos/schema.sql b/Chapter09/01_mysql_demos/schema.sql new file mode 100644 index 0000000..7b58014 --- /dev/null +++ b/Chapter09/01_mysql_demos/schema.sql @@ -0,0 +1,53 @@ +DROP DATABASE IF EXISTS PhotoAlbums; + + +CREATE DATABASE PhotoAlbums + DEFAULT CHARACTER SET utf8 + DEFAULT COLLATE utf8_general_ci; + +USE PhotoAlbums; + + +CREATE TABLE Albums +( + name VARCHAR(50) UNIQUE PRIMARY KEY, + title VARCHAR(100), + date DATETIME, + description VARCHAR(500), + + -- allow for sorting on date. + INDEX(date) +) +ENGINE = InnoDB; + +CREATE TABLE Photos +( + album_name VARCHAR(50), + filename VARCHAR(50), + description VARCHAR(500), + date DATETIME, + + FOREIGN KEY (album_name) REFERENCES Albums (name), + INDEX (album_name, date) +) +ENGINE = InnoDB; + + +CREATE TABLE Users +( + user_uuid VARCHAR(50) UNIQUE PRIMARY KEY, + email_address VARCHAR(150) UNIQUE, + + display_name VARCHAR(100) NOT NULL, + password VARCHAR(100), + + first_seen_date BIGINT, + last_modified_date BIGINT, + deleted BOOL DEFAULT false, + + INDEX(email_address), + INDEX(user_uuid) +) +ENGINE = InnoDB; + + diff --git a/Chapter09/02_user_auth/app/basic.html b/Chapter09/02_user_auth/app/basic.html new file mode 100644 index 0000000..0d966da --- /dev/null +++ b/Chapter09/02_user_auth/app/basic.html @@ -0,0 +1,25 @@ + + + + Photo Album + + + + + + + + + + + + + + + + + diff --git a/Chapter09/02_user_auth/app/data/album.js b/Chapter09/02_user_auth/app/data/album.js new file mode 100644 index 0000000..d28fa6a --- /dev/null +++ b/Chapter09/02_user_auth/app/data/album.js @@ -0,0 +1,237 @@ + +var fs = require('fs'), + local = require('../local.config.js'), + db = require('./db.js'), + path = require("path"), + async = require('async'), + backhelp = require("./backend_helpers.js"); + +exports.version = "0.1.0"; + + +exports.create_album = function (data, callback) { + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data. + function (cb) { + try { + backhelp.verify(data, + [ "name", + "title", + "date", + "description" ]); + if (!backhelp.valid_filename(data.name)) + throw invalid_album_name(); + } catch (e) { + cb(e); + } + + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ data.name, data.title, data.date, data.description ], + cb); + }, + + // make sure the folder exists. + function (results, fields, cb) { + write_succeeded = true; + fs.mkdir(local.config.static_content + + "albums/" + data.name, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err) { + if (write_succeeded) delete_album(dbc, data.name); + if (err instanceof Error && err.code == 'ER_EXISTS') + callback(backhelp.album_already_exists()); + else if (err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err); + } else { + callback(err, err ? null : data); + } + + if (dbc) dbc.end(); + }); +}; + + +exports.album_by_name = function (name, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums WHERE name = ?", + [ name ], + cb); + } + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else if (!results || results.length == 0) { + callback(backhelp.no_such_album()); + } else { + callback(null, results[0]); + } + }); +}; + + +exports.photos_for_album = function (album_name, skip, limit, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!album_name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Photos WHERE album_name = ? LIMIT ?, ?", + [ album_name, skip, limit ], + cb); + }, + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.all_albums = function (sort_by, desc, skip, count, callback) { + var dbc; + async.waterfall([ + function (cb) { + db.db(cb); + }, + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums ORDER BY ? " + + (desc ? "DESC" : "ASC") + + " LIMIT ?, ?", + [ sort_by, skip, count ], + cb); + } + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.add_photo = function (photo_data, path_to_photo, callback) { + var base_fn = path.basename(path_to_photo).toLowerCase(); + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data + function (cb) { + try { + backhelp.verify(photo_data, + [ "albumid", "description", "date" ]); + photo_data.filename = base_fn; + if (!backhelp.valid_filename(photo_data.albumid)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Photos VALUES (?, ?, ?, ?)", + [ photo_data.albumid, base_fn, photo_data.description, + photo_data.date ], + cb); + }, + + // now copy the temp file to static content + function (results, cb) { + write_succeeded = true; + var save_path = local.config.static_content + "albums/" + + photo_data.albumid + "/" + base_fn; + backhelp.file_copy(path_to_photo, save_path, true, cb); + }, + + ], + function (err, results) { + if (err && write_succeeded) + delete_photo(dbc, photo_data.albumid, base_fn); + if (err) { + callback (err); + } else { + // clone the object + var pd = JSON.parse(JSON.stringify(photo_data)); + pd.filename = base_fn; + callback(null, pd); + } + if (dbc) dbc.end(); + }); +}; + + +function invalid_album_name() { + return backhelp.error("invalid_album_name", + "Album names can have letters, #s, _ and, -"); +} +function invalid_filename() { + return backhelp.error("invalid_filename", + "Filenames can have letters, #s, _ and, -"); +} + + +function delete_album(dbc, name) { + dbc.query( + "DELETE FROM Albums WHERE name = ?", + [ name ], + function (err, results) {}); +} + +function delete_photo(dbc, albumid, fn) { + dbc.query( + "DELETE FROM Photos WHERE albumid = ? AND filename = ?", + [ albumid, fn ], + function (err, results) { }); +} + diff --git a/Chapter09/02_user_auth/app/data/backend_helpers.js b/Chapter09/02_user_auth/app/data/backend_helpers.js new file mode 100644 index 0000000..f43d753 --- /dev/null +++ b/Chapter09/02_user_auth/app/data/backend_helpers.js @@ -0,0 +1,111 @@ + +var fs = require('fs'); + + +exports.verify = function (data, field_names) { + for (var i = 0; i < field_names.length; i++) { + if (!data[field_names[i]]) { + throw exports.error("missing_data", + field_names[i] + " not optional"); + } + } + + return true; +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err.message)); +} + + + +/** + * Possible signatures: + * src, dst, callback + * src, dst, can_overwrite, callback + */ +exports.file_copy = function () { + + var src, dst, callback; + var can_overwrite = false; + + if (arguments.length == 3) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[2]; + } else if (arguments.length == 4) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[3]; + can_overwrite = arguments[2] + } + + function copy(err) { + var is, os; + + if (!err && !can_overwrite) { + return callback(backhelp.error("file_exists", + "File " + dst + " exists.")); + } + + fs.stat(src, function (err) { + if (err) { + return callback(err); + } + + is = fs.createReadStream(src); + os = fs.createWriteStream(dst); + is.on('end', function () { callback(null); }); + is.on('error', function (e) { callback(e); }); + is.pipe(os); + }); + } + + fs.stat(dst, copy); +}; + + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.db_error = function () { + return exports.error("server_error", + "Something horrible has happened with our database!"); +}; + +exports.album_already_exists = function () { + return exports.error("album_already_exists", + "An album with this name already exists."); +}; + +exports.missing_data = function (field) { + return exports.error("missing_data", "You must provide: " + field); +}; + +exports.no_such_user = function () { + return exports.error("no_such_user", + "The specified user does not exist"); +}; + + +exports.user_already_registered = function () { + return exports.error("user_already_registered", + "This user appears to exist already!"); +}; + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + diff --git a/Chapter09/02_user_auth/app/data/db.js b/Chapter09/02_user_auth/app/data/db.js new file mode 100644 index 0000000..b929d03 --- /dev/null +++ b/Chapter09/02_user_auth/app/data/db.js @@ -0,0 +1,14 @@ +var mysql = require('mysql'), + local = require("../local.config.js"); + +exports.db = function (callback) { + + conn_props = local.config.db_config; + var c = mysql.createConnection({ + host: conn_props.host, + user: conn_props.user, + password: conn_props.password, + database: conn_props.database + }); + callback(null, c); +}; diff --git a/Chapter09/02_user_auth/app/data/user.js b/Chapter09/02_user_auth/app/data/user.js new file mode 100644 index 0000000..29fe49c --- /dev/null +++ b/Chapter09/02_user_auth/app/data/user.js @@ -0,0 +1,127 @@ + +var async = require('async'), + bcrypt = require('bcrypt'), + db = require("./db.js"), + uuid = require('node-uuid'), + backhelp = require("./backend_helpers.js"); + + +exports.version = "0.1.0"; + +exports.user_by_uuid = function (uuid, callback) { + if (!uuid) + callback(backhelp.missing_data("uuid")); + else + user_by_field("user_uuid", uuid, callback); +}; + +exports.user_by_display_name = function (dn, callback) { + if (!dn) + callback(backhelp.missing_data("display_name")); + else + user_by_field("display_name", dn, callback); +} + +exports.user_by_email_address = function (email, callback) { + if (!email) + callback(backhelp.missing_data("email")); + else + user_by_field("email_address", email, callback); +}; + +exports.register = function (email, display_name, password, callback) { + var dbc; + var userid; + async.waterfall([ + // validate ze params + function (cb) { + if (!email || email.indexOf("@") == -1) + cb(backhelp.missing_data("email")); + else if (!display_name) + cb(backhelp.missing_data("display_name")); + else if (!password) + cb(backhelp.missing_data("password")); + else + cb(null); + }, + + // get a connection + function (cb) { + db.db(cb); + }, + + // generate a password hash + function (dbclient, cb) { + dbc = dbclient; + bcrypt.hash(password, 10, cb); + }, + + // register the account. + function (hash, cb) { + userid = uuid(); + var now = Math.round((new Date()).getTime() / 1000); + dbc.query( + "INSERT INTO Users VALUES (?, ?, ?, ?, ?, NULL, 0)", + [ userid, email.trim(), display_name.trim(), hash, now ], + cb); + }, + + // fetch and return the new user. + function (results, fields, cb) { + exports.user_by_uuid(userid, cb); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + if (err.code + && (err.code == 'ER_DUP_KEYNAME' + || err.code == 'ER_EXISTS' + || err.code == 'ER_DUP_ENTRY')) + callback(backhelp.user_already_registered()); + else + callback (err); + } else { + callback(null, user_data); + } + }); +}; + + + + +function user_by_field (field, value, callback) { + var dbc; + async.waterfall([ + // get a connection + function (cb) { + db.db(cb); + }, + + // fetch the user. + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Users WHERE " + field + + " = ? AND deleted = false", + [ value ], + cb); + }, + + function (rows, fields, cb) { + if (!rows || rows.length == 0) + cb(backhelp.no_such_user()); + else + cb(null, rows[0]); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + console.log(user_data); + callback(null, user_data); + } + }); +} \ No newline at end of file diff --git a/Chapter09/02_user_auth/app/handlers/albums.js b/Chapter09/02_user_auth/app/handlers/albums.js new file mode 100644 index 0000000..ac2da86 --- /dev/null +++ b/Chapter09/02_user_auth/app/handlers/albums.js @@ -0,0 +1,259 @@ + +var helpers = require('./helpers.js'), + album_data = require("../data/album.js"), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +/** + * Album class. + */ +function Album (album_data) { + this.name = album_data.name; + this.date = album_data.date; + this.title = album_data.title; + this.description = album_data.description; + this._id = album_data._id; +} + +Album.prototype.name = null; +Album.prototype.date = null; +Album.prototype.title = null; +Album.prototype.description = null; + +Album.prototype.response_obj = function () { + return { name: this.name, + date: this.date, + title: this.title, + description: this.description }; +}; +Album.prototype.photos = function (pn, ps, callback) { + if (this.album_photos != undefined) { + callback(null, this.album_photos); + return; + } + + album_data.photos_for_album( + this.name, + pn, ps, + function (err, results) { + if (err) { + callback(err); + return; + } + + var out = []; + for (var i = 0; i < results.length; i++) { + out.push(new Photo(results[i])); + } + + this.album_photos = out; + callback(null, this.album_photos); + } + ); +}; +Album.prototype.add_photo = function (data, path, callback) { + album_data.add_photo(data, path, function (err, photo_data) { + if (err) + callback(err); + else { + var p = new Photo(photo_data); + if (this.all_photos) + this.all_photos.push(p); + else + this.app_photos = [ p ]; + + callback(null, p); + } + }); +}; + + + + +/** + * Photo class. + */ +function Photo (photo_data) { + this.filename = photo_data.filename; + this.date = photo_data.date; + this.albumid = photo_data.albumid; + this.description = photo_data.description; + this._id = photo_data._id; +} +Photo.prototype._id = null; +Photo.prototype.filename = null; +Photo.prototype.date = null; +Photo.prototype.albumid = null; +Photo.prototype.description = null; +Photo.prototype.response_obj = function() { + return { + filename: this.filename, + date: this.date, + albumid: this.albumid, + description: this.description + }; +}; + + +/** + * Album module methods. + */ +exports.create_album = function (req, res) { + async.waterfall([ + // make sure the albumid is valid + function (cb) { + if (!req.body || !req.body.name) { + cb(helpers.no_such_album()); + return; + } + + // UNDONE: we should add some code to make sure the album + // doesn't already exist! + cb(null); + }, + + function (cb) { + album_data.create_album(req.body, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var a = new Album(results); + helpers.send_success(res, {album: a.response_obj() }); + } + }); +}; + + +exports.album_by_name = function (req, res) { + async.waterfall([ + // get the album + function (cb) { + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else if (!results) { + helpers.send_failure(res, helpers.no_such_album()); + } else { + var a = new Album(album_data); + helpers.send_success(res, { album: a.response_obj() }); + } + }); +}; + + + +exports.list_all = function (req, res) { + album_data.all_albums("date", true, 0, 25, function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var out = []; + if (results) { + for (var i = 0; i < results.length; i++) { + out.push(new Album(results[i]).response_obj()); + } + } + helpers.send_success(res, { albums: out }); + } + }); +}; + + +exports.photos_for_album = function(req, res) { + var page_num = req.query.page ? req.query.page : 0; + var page_size = req.query.page_size ? req.query.page_size : 1000; + + page_num = parseInt(page_num); + page_size = parseInt(page_size); + if (isNaN(page_num)) page_num = 0; + if (isNaN(page_size)) page_size = 1000; + + var album; + async.waterfall([ + function (cb) { + // first get the album. + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + album = new Album(album_data); + album.photos(page_num, page_size, cb); + }, + function (photos, cb) { + var out = []; + for (var i = 0; i < photos.length; i++) { + out.push(photos[i].response_obj()); + } + cb(null, out); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + return; + } + if (!results) results = []; + var out = { photos: results, + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + + +exports.add_photo_to_album = function (req, res) { + var album; + async.waterfall([ + // make sure we have everything we need. + function (cb) { + if (!req.body) + cb(helpers.missing_data("POST data")); + else if (!req.files || !req.files.photo_file) + cb(helpers.missing_data("a file")); + else if (!helpers.is_image(req.files.photo_file.name)) + cb(helpers.not_image()); + else + // get the album + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + + album = new Album(album_data); + req.body.filename = req.files.photo_file.name; + album.add_photo(req.body, req.files.photo_file.path, cb); + } + ], + function (err, p) { + if (err) { + helpers.send_failure(res, err); + return; + } + var out = { photo: p.response_obj(), + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + diff --git a/Chapter09/02_user_auth/app/handlers/helpers.js b/Chapter09/02_user_auth/app/handlers/helpers.js new file mode 100644 index 0000000..e6f0a13 --- /dev/null +++ b/Chapter09/02_user_auth/app/handlers/helpers.js @@ -0,0 +1,114 @@ + +var path = require('path'); + + +exports.version = '0.1.0'; + + + + +exports.send_success = function(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +exports.send_failure = function(res, err) { + console.log(err); + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +exports.error_for_resp = function (err) { + if (!err instanceof Error) { + console.error("** Unexpected error type! :" + + err.constructor.name); + return JSON.stringify(err); + } else { + var code = err.code ? err.code : err.name; + return JSON.stringify({ error: code, + message: err.message }); + } +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err)); +}; + + +exports.is_image = function (filename) { + switch (path.extname(filename).toLowerCase()) { + case '.jpg': case '.jpeg': case '.png': case '.bmp': + case '.gif': case '.tif': case '.tiff': + return true; + } + + return false; +}; + + +exports.invalid_resource = function () { + return exports.error("invalid_resource", + "The requested resource does not exist."); +}; + + +exports.missing_data = function (what) { + return exports.error("missing_data", + "You must include " + what); +} + + +exports.not_image = function () { + return exports.error("not_image_file", + "The uploaded file must be an image file."); +}; + + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + +exports.http_code_for_error = function (err) { + switch (err.message) { + case "no_such_album": + return 403; + case "invalid_resource": + return 404; + case "invalid_email_address": + return 403; + case "no_such_user": + return 403; + } + + console.log("*** Error needs HTTP response code: " + err.message); + return 503; +} + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.invalid_email_address = function () { + return exports.error("invalid_email_address", + "That's not a valid email address, sorry"); +}; + +exports.auth_failed = function () { + return exports.error("auth_failure", + "Invalid email address / password combination."); +}; \ No newline at end of file diff --git a/Chapter09/02_user_auth/app/handlers/pages.js b/Chapter09/02_user_auth/app/handlers/pages.js new file mode 100644 index 0000000..d80a263 --- /dev/null +++ b/Chapter09/02_user_auth/app/handlers/pages.js @@ -0,0 +1,37 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generate = function (req, res) { + + var page = req.params.page_name; + if (req.params.sub_page && req.params.page_name == 'admin') + page = req.params.page_name + "_" + req.params.sub_page; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, 500, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; + +// if we made it here, then we're logged in. redirect to admin home +exports.login = function (req, res) { + res.redirect("/pages/admin/home"); + res.end(); +}; diff --git a/Chapter09/02_user_auth/app/handlers/users.js b/Chapter09/02_user_auth/app/handlers/users.js new file mode 100644 index 0000000..9668cdd --- /dev/null +++ b/Chapter09/02_user_auth/app/handlers/users.js @@ -0,0 +1,186 @@ +var helpers = require('./helpers.js'), + user_data = require("../data/user.js"), + async = require('async'), + bcrypt = require('bcrypt'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +function User (user_data) { + this.uuid = user_data["user_uuid"]; + this.email_address = user_data["email_address"]; + this.display_name = user_data["display_name"]; + this.password = user_data["password"]; + this.first_seen_date = user_data["first_seen_date"]; + this.last_modified_date = user_data["last_modified_date"]; + this.deleted = user_data["deleted"]; +} + +User.prototype.uuid = null; +User.prototype.email_address = null; +User.prototype.display_name = null; +User.prototype.password = null; +User.prototype.first_seen_date = null; +User.prototype.last_modified_date = null; +User.prototype.deleted = false; +User.prototype.check_password = function (pw, callback) { + bcrypt.compare(pw, this.password, callback); +}; +User.prototype.response_obj = function () { + return { + uuid: this.uuid, + email_address: this.email_address, + display_name: this.display_name, + first_seen_date: this.first_seen_date, + last_modified_date: this.last_modified_date + }; +}; + + + +exports.register = function (req, res) { + async.waterfall([ + function (cb) { + var em = req.body.email_address; + if (!em || em.indexOf("@") == -1) + cb(helpers.invalid_email_address()); + else if (!req.body.display_name) + cb(helpers.missing_data("display_name")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // register da user. + function (cb) { + user_data.register( + req.body.email_address, + req.body.display_name, + req.body.password, + cb); + }, + + // mark user as logged in + function (user_data, cb) { + req.session.logged_in = true; + req.session.logged_in_display_name = req.body.display_name; + req.session.logged_in_date = new Date(); + cb(null, user_data); + } + ], + function (err, user_data) { + if (err) { + helpers.send_failure(res, err); + } else { + var u = new User(user_data); + helpers.send_success(res, {user: u.response_obj() }); + } + }); +}; + + +exports.login = function (req, res) { + var em = req.body.email_address + ? req.body.email_address.trim().toLowerCase() + : ""; + + async.waterfall([ + function (cb) { + if (!em) + cb(helpers.missing_data("email_address")); + else if (req.session + && req.session.logged_in_email_address == em) + cb(helpers.error("already_logged_in", "")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // first get the user by the email address. + function (cb) { + user_data.user_by_email_address(em, cb); + }, + + // check the password + function (user_data, cb) { + var u = new User(user_data); + u.check_password(req.body.password, cb); + }, + + function (auth_ok, cb) { + if (!auth_ok) { + cb(helpers.auth_failed()); + return; + } + + req.session.logged_in = true; + req.session.logged_in_email_address = req.body.email_address; + req.session.logged_in_date = new Date(); + cb(null); + } + ], + function (err, results) { + if (!err || err.message == "already_logged_in") { + helpers.send_success(res, { logged_in: true }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.user_by_display_name = function (req, res) { + async.waterfall([ + // first get the user by the email address. + function (cb) { + user_data.user_by_display_name(req.body.email_address, cb); + } + ], + function (err, u) { + if (!err) { + helpers.send_success(res, { user: u.response_obj() }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.authenticate_API = function (un, pw, callback) { + if (req.session && req.session.logged_in + && req.session.logged_in_email_address == un) { + callback(null, un); + return; + } + + async.waterfall([ + function (cb) { + user_data.user_by_email_address(un, cb); + }, + + function (user_data, cb) { + var u = new User(user_data); + u.check_password(pw, cb); + } + ], + function (err, results) { + if (!err) { + callback(null, un); + } else { + callback(new Error("bogus credentials")); + } + }); +}; + +exports.logged_in = function (req, res) { + var li = (req.session && req.session.logged_in_email_address); + helpers.send_success(res, { logged_in: li }); +}; + +exports.logout = function (req, res) { + req.session = null; + helpers.send_success(res, { logged_out: true }); +}; diff --git a/Chapter09/02_user_auth/app/local.config.js b/Chapter09/02_user_auth/app/local.config.js new file mode 100644 index 0000000..85e0a8d --- /dev/null +++ b/Chapter09/02_user_auth/app/local.config.js @@ -0,0 +1,16 @@ + + +exports.config = { + db_config: { + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums", + + pooled_connections: 125, + idle_timeout_millis: 30000 + }, + + static_content: "../static/" +}; + diff --git a/Chapter09/02_user_auth/app/package.json b/Chapter09/02_user_auth/app/package.json new file mode 100644 index 0000000..dddffd9 --- /dev/null +++ b/Chapter09/02_user_auth/app/package.json @@ -0,0 +1,13 @@ +{ + "name": "MySQL-Demo", + "description": "Demonstrates Using MySQL Database connectivity", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x", + "mysql": "2.x", + "bcrypt": "0.x", + "node-uuid": "1.x" + } +} diff --git a/Chapter09/02_user_auth/app/server.js b/Chapter09/02_user_auth/app/server.js new file mode 100644 index 0000000..6f20cb3 --- /dev/null +++ b/Chapter09/02_user_auth/app/server.js @@ -0,0 +1,68 @@ + +var express = require('express'); +var app = express(); + +var db = require('./data/db.js'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + user_hdlr = require('./handlers/users.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.logger('dev')); +app.use(express.bodyParser({ keepExtensions: true })); +app.use(express.static(__dirname + "/../static")); +app.use(express.cookieParser()); +app.use(express.cookieSession({ + secret: "FLUFFY BUNNIES", + maxAge: 86400000, + store: new express.session.MemoryStore() +})); + +/** + * API Server requests. + */ +app.get('/v1/albums.json', album_hdlr.list_all); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); +app.put('/v1/albums.json', album_hdlr.create_album); + +app.get('/v1/albums/:album_name/photos.json', album_hdlr.photos_for_album); +app.put('/v1/albums/:album_name/photos.json', album_hdlr.add_photo_to_album); + +app.put('/v1/users.json', user_hdlr.register); + + +/** + * add-on requests we support for the purposes of the web interface + * to the server. + */ +app.get('/pages/:page_name', requirePageLogin, page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', requirePageLogin, page_hdlr.generate); +app.post('/service/login', user_hdlr.login); + + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + +function requirePageLogin(req, res, next) { + if (req.params && req.params.page_name == 'admin') { + if (req.session && req.session.logged_in) { + next(); + } else { + res.redirect("/pages/login"); + } + } else + next(); +} + +app.listen(8080); + + diff --git a/Chapter09/02_user_auth/schema.sql b/Chapter09/02_user_auth/schema.sql new file mode 100644 index 0000000..61ab5c3 --- /dev/null +++ b/Chapter09/02_user_auth/schema.sql @@ -0,0 +1,53 @@ +DROP DATABASE IF EXISTS PhotoAlbums; + + +CREATE DATABASE PhotoAlbums + DEFAULT CHARACTER SET utf8 + DEFAULT COLLATE utf8_general_ci; + +USE PhotoAlbums; + + +CREATE TABLE Albums +( + name VARCHAR(50) UNIQUE PRIMARY KEY, + title VARCHAR(100), + date DATETIME, + description VARCHAR(500), + + -- allow for sorting on date. + INDEX(date) +) +ENGINE = InnoDB; + +CREATE TABLE Photos +( + album_name VARCHAR(50), + filename VARCHAR(50), + description VARCHAR(500), + date DATETIME, + + FOREIGN KEY (album_name) REFERENCES Albums (name), + INDEX (album_name, date) +) +ENGINE = InnoDB; + + +CREATE TABLE Users +( + user_uuid VARCHAR(50) UNIQUE PRIMARY KEY, + email_address VARCHAR(150) UNIQUE, + + display_name VARCHAR(100) UNIQUE, + password VARCHAR(100), + + first_seen_date BIGINT, + last_modified_date BIGINT, + deleted BOOL DEFAULT false, + + INDEX(email_address, deleted), + INDEX(user_uuid, deleted) +) +ENGINE = InnoDB; + + diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_01.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_02.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_03.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_04.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_05.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_06.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_07.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_08.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/australia2010/aus_09.jpg b/Chapter09/02_user_auth/static/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/italy2012/picture_01.jpg b/Chapter09/02_user_auth/static/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/italy2012/picture_02.jpg b/Chapter09/02_user_auth/static/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/italy2012/picture_03.jpg b/Chapter09/02_user_auth/static/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/italy2012/picture_04.jpg b/Chapter09/02_user_auth/static/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/italy2012/picture_05.jpg b/Chapter09/02_user_auth/static/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_001.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_002.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_003.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_004.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_005.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_006.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/albums/japan2010/picture_007.jpg b/Chapter09/02_user_auth/static/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/02_user_auth/static/content/#album.js# b/Chapter09/02_user_auth/static/content/#album.js# new file mode 100644 index 0000000..442c047 --- /dev/null +++ b/Chapter09/02_user_auth/static/content/#album.js# @@ -0,0 +1,60 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +xundo \ No newline at end of file diff --git a/Chapter09/02_user_auth/static/content/admin_add_album.js b/Chapter09/02_user_auth/static/content/admin_add_album.js new file mode 100644 index 0000000..f2987d6 --- /dev/null +++ b/Chapter09/02_user_auth/static/content/admin_add_album.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_album.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/02_user_auth/static/content/admin_add_photos.js b/Chapter09/02_user_auth/static/content/admin_add_photos.js new file mode 100644 index 0000000..350e536 --- /dev/null +++ b/Chapter09/02_user_auth/static/content/admin_add_photos.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_photos.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/02_user_auth/static/content/admin_home.js b/Chapter09/02_user_auth/static/content/admin_home.js new file mode 100644 index 0000000..820f7fd --- /dev/null +++ b/Chapter09/02_user_auth/static/content/admin_home.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_home.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/02_user_auth/static/content/album.js b/Chapter09/02_user_auth/static/content/album.js new file mode 100644 index 0000000..c4d918e --- /dev/null +++ b/Chapter09/02_user_auth/static/content/album.js @@ -0,0 +1,67 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +$.urlParam = function(name){ + var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); + if (!results) + { + return 0; + } + return results[1] || 0; +} \ No newline at end of file diff --git a/Chapter09/02_user_auth/static/content/home.js b/Chapter09/02_user_auth/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter09/02_user_auth/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); 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v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window); \ No newline at end of file diff --git a/Chapter09/02_user_auth/static/content/login.js b/Chapter09/02_user_auth/static/content/login.js new file mode 100644 index 0000000..fd52f1d --- /dev/null +++ b/Chapter09/02_user_auth/static/content/login.js @@ -0,0 +1,30 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/login.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page +// $.getJSON("/v1/users/logged_in.json", function (d) { +// $.extend(tdata, d); +// }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { +// if (tdata.data.logged_in) +// window.location = "/pages/admin/home"; +// else { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); +// } + }); + }(); +}); diff --git a/Chapter09/02_user_auth/static/content/mustache.js b/Chapter09/02_user_auth/static/content/mustache.js new file mode 100644 index 0000000..0148d29 --- /dev/null +++ b/Chapter09/02_user_auth/static/content/mustache.js @@ -0,0 +1,625 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // diff --git a/Chapter09/02_user_auth/static/templates/admin_add_photos.html b/Chapter09/02_user_auth/static/templates/admin_add_photos.html new file mode 100644 index 0000000..d9cbe8d --- /dev/null +++ b/Chapter09/02_user_auth/static/templates/admin_add_photos.html @@ -0,0 +1,86 @@ +
+ +
+
Add to Album:
+
+ +
+
Image:
+
+
Description
+
+
+ + + + + +
+ + diff --git a/Chapter09/02_user_auth/static/templates/admin_home.html b/Chapter09/02_user_auth/static/templates/admin_home.html new file mode 100644 index 0000000..4db4cf1 --- /dev/null +++ b/Chapter09/02_user_auth/static/templates/admin_home.html @@ -0,0 +1,7 @@ + +

Admin Operations

+ + diff --git a/Chapter09/02_user_auth/static/templates/album.html b/Chapter09/02_user_auth/static/templates/album.html new file mode 100644 index 0000000..fbcbda2 --- /dev/null +++ b/Chapter09/02_user_auth/static/templates/album.html @@ -0,0 +1,20 @@ + +
+ {{#has_photos}} +

There are {{ has_photos }} photos in this album

+ {{/has_photos}} + {{#photos}} +
+
+
+
+

{{ desc }}

+
+
+ {{/photos}} +
+ {{^photos}} +

This album does't have any photos in it, sorry.

+ {{/photos}} +

diff --git a/Chapter09/02_user_auth/static/templates/home.html b/Chapter09/02_user_auth/static/templates/home.html new file mode 100644 index 0000000..90ff5fc --- /dev/null +++ b/Chapter09/02_user_auth/static/templates/home.html @@ -0,0 +1,17 @@ +
+ Register | + Admin +
+
+

There are {{ albums.length }} albums

+
    + {{#albums}} +
  • + {{name}} +
    • + {{/albums}} + {{^albums}} +
  • Sorry, there are currently no albums
    • + {{/albums}} +
+
diff --git a/Chapter09/02_user_auth/static/templates/login.html b/Chapter09/02_user_auth/static/templates/login.html new file mode 100644 index 0000000..7bbcc3f --- /dev/null +++ b/Chapter09/02_user_auth/static/templates/login.html @@ -0,0 +1,49 @@ + +
+
+
+
Email address:
+
+
Password:
+
+
+
+ + + + diff --git a/Chapter09/02_user_auth/static/templates/register.html b/Chapter09/02_user_auth/static/templates/register.html new file mode 100644 index 0000000..2934caa --- /dev/null +++ b/Chapter09/02_user_auth/static/templates/register.html @@ -0,0 +1,56 @@ + + +
+
+
+
Email address:
+
+
Display Name:
+
+
Password:
+
+
Password (confirm):
+
+
+
+ + + + diff --git a/Chapter09/02_user_auth/test.jpg b/Chapter09/02_user_auth/test.jpg new file mode 100644 index 0000000..6e4250a Binary files /dev/null and b/Chapter09/02_user_auth/test.jpg differ diff --git a/Chapter09/03_connection_pools/app/basic.html b/Chapter09/03_connection_pools/app/basic.html new file mode 100644 index 0000000..0d966da --- /dev/null +++ b/Chapter09/03_connection_pools/app/basic.html @@ -0,0 +1,25 @@ + + + + Photo Album + + + + + + + + + + + + + + + + + diff --git a/Chapter09/03_connection_pools/app/data/album.js b/Chapter09/03_connection_pools/app/data/album.js new file mode 100644 index 0000000..d28fa6a --- /dev/null +++ b/Chapter09/03_connection_pools/app/data/album.js @@ -0,0 +1,237 @@ + +var fs = require('fs'), + local = require('../local.config.js'), + db = require('./db.js'), + path = require("path"), + async = require('async'), + backhelp = require("./backend_helpers.js"); + +exports.version = "0.1.0"; + + +exports.create_album = function (data, callback) { + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data. + function (cb) { + try { + backhelp.verify(data, + [ "name", + "title", + "date", + "description" ]); + if (!backhelp.valid_filename(data.name)) + throw invalid_album_name(); + } catch (e) { + cb(e); + } + + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ data.name, data.title, data.date, data.description ], + cb); + }, + + // make sure the folder exists. + function (results, fields, cb) { + write_succeeded = true; + fs.mkdir(local.config.static_content + + "albums/" + data.name, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err) { + if (write_succeeded) delete_album(dbc, data.name); + if (err instanceof Error && err.code == 'ER_EXISTS') + callback(backhelp.album_already_exists()); + else if (err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err); + } else { + callback(err, err ? null : data); + } + + if (dbc) dbc.end(); + }); +}; + + +exports.album_by_name = function (name, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums WHERE name = ?", + [ name ], + cb); + } + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else if (!results || results.length == 0) { + callback(backhelp.no_such_album()); + } else { + callback(null, results[0]); + } + }); +}; + + +exports.photos_for_album = function (album_name, skip, limit, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!album_name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Photos WHERE album_name = ? LIMIT ?, ?", + [ album_name, skip, limit ], + cb); + }, + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.all_albums = function (sort_by, desc, skip, count, callback) { + var dbc; + async.waterfall([ + function (cb) { + db.db(cb); + }, + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums ORDER BY ? " + + (desc ? "DESC" : "ASC") + + " LIMIT ?, ?", + [ sort_by, skip, count ], + cb); + } + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.add_photo = function (photo_data, path_to_photo, callback) { + var base_fn = path.basename(path_to_photo).toLowerCase(); + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data + function (cb) { + try { + backhelp.verify(photo_data, + [ "albumid", "description", "date" ]); + photo_data.filename = base_fn; + if (!backhelp.valid_filename(photo_data.albumid)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Photos VALUES (?, ?, ?, ?)", + [ photo_data.albumid, base_fn, photo_data.description, + photo_data.date ], + cb); + }, + + // now copy the temp file to static content + function (results, cb) { + write_succeeded = true; + var save_path = local.config.static_content + "albums/" + + photo_data.albumid + "/" + base_fn; + backhelp.file_copy(path_to_photo, save_path, true, cb); + }, + + ], + function (err, results) { + if (err && write_succeeded) + delete_photo(dbc, photo_data.albumid, base_fn); + if (err) { + callback (err); + } else { + // clone the object + var pd = JSON.parse(JSON.stringify(photo_data)); + pd.filename = base_fn; + callback(null, pd); + } + if (dbc) dbc.end(); + }); +}; + + +function invalid_album_name() { + return backhelp.error("invalid_album_name", + "Album names can have letters, #s, _ and, -"); +} +function invalid_filename() { + return backhelp.error("invalid_filename", + "Filenames can have letters, #s, _ and, -"); +} + + +function delete_album(dbc, name) { + dbc.query( + "DELETE FROM Albums WHERE name = ?", + [ name ], + function (err, results) {}); +} + +function delete_photo(dbc, albumid, fn) { + dbc.query( + "DELETE FROM Photos WHERE albumid = ? AND filename = ?", + [ albumid, fn ], + function (err, results) { }); +} + diff --git a/Chapter09/03_connection_pools/app/data/backend_helpers.js b/Chapter09/03_connection_pools/app/data/backend_helpers.js new file mode 100644 index 0000000..2df8e6b --- /dev/null +++ b/Chapter09/03_connection_pools/app/data/backend_helpers.js @@ -0,0 +1,117 @@ + +var fs = require('fs'); + + +exports.verify = function (data, field_names) { + for (var i = 0; i < field_names.length; i++) { + if (!data[field_names[i]]) { + throw exports.error("missing_data", + field_names[i] + " not optional"); + } + } + + return true; +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err.message)); +} + + + +/** + * Possible signatures: + * src, dst, callback + * src, dst, can_overwrite, callback + */ +exports.file_copy = function () { + + var src, dst, callback; + var can_overwrite = false; + + if (arguments.length == 3) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[2]; + } else if (arguments.length == 4) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[3]; + can_overwrite = arguments[2] + } + + function copy(err) { + var is, os; + + if (!err && !can_overwrite) { + return callback(backhelp.error("file_exists", + "File " + dst + " exists.")); + } + + fs.stat(src, function (err) { + if (err) { + return callback(err); + } + + is = fs.createReadStream(src); + os = fs.createWriteStream(dst); + is.on('end', function () { callback(null); }); + is.on('error', function (e) { callback(e); }); + is.pipe(os); + }); + } + + fs.stat(dst, copy); +}; + + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.db_error = function () { + return exports.error("server_error", + "Something horrible has happened with our database!"); +}; + +exports.album_already_exists = function () { + return exports.error("album_already_exists", + "An album with this name already exists."); +}; + +exports.missing_data = function (field) { + return exports.error("missing_data", "You must provide: " + field); +}; + +exports.no_such_user = function () { + return exports.error("no_such_user", + "The specified user does not exist"); +}; + + +exports.user_already_registered = function () { + return exports.error("user_already_registered", + "This user appears to exist already!"); +}; + + + +/** + * node-mysql sometimes adds extra data to callbacks to be helpful. + * this can mess up our waterfall, however, so we'll strip those + * out. + */ +exports.mscb = function (cb) { + return function (err, results) { + cb(err, results); + } +} diff --git a/Chapter09/03_connection_pools/app/data/db.js b/Chapter09/03_connection_pools/app/data/db.js new file mode 100644 index 0000000..8bab0f1 --- /dev/null +++ b/Chapter09/03_connection_pools/app/data/db.js @@ -0,0 +1,62 @@ +var mysql = require('mysql'), + pool = require('generic-pool'), + async = require('async'), + local = require("../local.config.js"); + + +var mysql_pool; + + +/** + * Currently for initialisation, we + * the database. We won't even attempt to start up + * if this fails, as it's pretty pointless. + */ +exports.init = function (callback) { + + conn_props = local.config.db_config; + + mysql_pool = pool.Pool({ + name : 'mysql', + create : function (callback) { + var c = mysql.createConnection({ + host: conn_props.host, + user: conn_props.user, + password: conn_props.password, + database: conn_props.database + }); + callback(null, c); + }, + destroy : function(client) { client.end(); }, + max : conn_props.pooled_connections, + idleTimeoutMillis : conn_props.idle_timeout_millis, + log : false + }); + + // run a test query to make sure it's working. + exports.run_mysql_query("SELECT 1", [], function (err, results) { + if (err != null) { + callback(err); + console.error("Unable to connect to database server. Aborting."); + } else { + console.log("Database initialised and connected."); + callback(null); + } + }); + +}; + + +exports.run_mysql_query = function (query, values, callback) { + mysql_pool.acquire(function(err, mysqlconn) { + mysqlconn.query(query, values, function (mysqlerr, mysqlresults) { + mysql_pool.release(mysqlconn); + callback(mysqlerr, mysqlresults); + }); + }); +}; + + +exports.db = function (callback) { + mysql_pool.acquire(callback); +}; diff --git a/Chapter09/03_connection_pools/app/data/user.js b/Chapter09/03_connection_pools/app/data/user.js new file mode 100644 index 0000000..29fe49c --- /dev/null +++ b/Chapter09/03_connection_pools/app/data/user.js @@ -0,0 +1,127 @@ + +var async = require('async'), + bcrypt = require('bcrypt'), + db = require("./db.js"), + uuid = require('node-uuid'), + backhelp = require("./backend_helpers.js"); + + +exports.version = "0.1.0"; + +exports.user_by_uuid = function (uuid, callback) { + if (!uuid) + callback(backhelp.missing_data("uuid")); + else + user_by_field("user_uuid", uuid, callback); +}; + +exports.user_by_display_name = function (dn, callback) { + if (!dn) + callback(backhelp.missing_data("display_name")); + else + user_by_field("display_name", dn, callback); +} + +exports.user_by_email_address = function (email, callback) { + if (!email) + callback(backhelp.missing_data("email")); + else + user_by_field("email_address", email, callback); +}; + +exports.register = function (email, display_name, password, callback) { + var dbc; + var userid; + async.waterfall([ + // validate ze params + function (cb) { + if (!email || email.indexOf("@") == -1) + cb(backhelp.missing_data("email")); + else if (!display_name) + cb(backhelp.missing_data("display_name")); + else if (!password) + cb(backhelp.missing_data("password")); + else + cb(null); + }, + + // get a connection + function (cb) { + db.db(cb); + }, + + // generate a password hash + function (dbclient, cb) { + dbc = dbclient; + bcrypt.hash(password, 10, cb); + }, + + // register the account. + function (hash, cb) { + userid = uuid(); + var now = Math.round((new Date()).getTime() / 1000); + dbc.query( + "INSERT INTO Users VALUES (?, ?, ?, ?, ?, NULL, 0)", + [ userid, email.trim(), display_name.trim(), hash, now ], + cb); + }, + + // fetch and return the new user. + function (results, fields, cb) { + exports.user_by_uuid(userid, cb); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + if (err.code + && (err.code == 'ER_DUP_KEYNAME' + || err.code == 'ER_EXISTS' + || err.code == 'ER_DUP_ENTRY')) + callback(backhelp.user_already_registered()); + else + callback (err); + } else { + callback(null, user_data); + } + }); +}; + + + + +function user_by_field (field, value, callback) { + var dbc; + async.waterfall([ + // get a connection + function (cb) { + db.db(cb); + }, + + // fetch the user. + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Users WHERE " + field + + " = ? AND deleted = false", + [ value ], + cb); + }, + + function (rows, fields, cb) { + if (!rows || rows.length == 0) + cb(backhelp.no_such_user()); + else + cb(null, rows[0]); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + console.log(user_data); + callback(null, user_data); + } + }); +} \ No newline at end of file diff --git a/Chapter09/03_connection_pools/app/handlers/albums.js b/Chapter09/03_connection_pools/app/handlers/albums.js new file mode 100644 index 0000000..ac2da86 --- /dev/null +++ b/Chapter09/03_connection_pools/app/handlers/albums.js @@ -0,0 +1,259 @@ + +var helpers = require('./helpers.js'), + album_data = require("../data/album.js"), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +/** + * Album class. + */ +function Album (album_data) { + this.name = album_data.name; + this.date = album_data.date; + this.title = album_data.title; + this.description = album_data.description; + this._id = album_data._id; +} + +Album.prototype.name = null; +Album.prototype.date = null; +Album.prototype.title = null; +Album.prototype.description = null; + +Album.prototype.response_obj = function () { + return { name: this.name, + date: this.date, + title: this.title, + description: this.description }; +}; +Album.prototype.photos = function (pn, ps, callback) { + if (this.album_photos != undefined) { + callback(null, this.album_photos); + return; + } + + album_data.photos_for_album( + this.name, + pn, ps, + function (err, results) { + if (err) { + callback(err); + return; + } + + var out = []; + for (var i = 0; i < results.length; i++) { + out.push(new Photo(results[i])); + } + + this.album_photos = out; + callback(null, this.album_photos); + } + ); +}; +Album.prototype.add_photo = function (data, path, callback) { + album_data.add_photo(data, path, function (err, photo_data) { + if (err) + callback(err); + else { + var p = new Photo(photo_data); + if (this.all_photos) + this.all_photos.push(p); + else + this.app_photos = [ p ]; + + callback(null, p); + } + }); +}; + + + + +/** + * Photo class. + */ +function Photo (photo_data) { + this.filename = photo_data.filename; + this.date = photo_data.date; + this.albumid = photo_data.albumid; + this.description = photo_data.description; + this._id = photo_data._id; +} +Photo.prototype._id = null; +Photo.prototype.filename = null; +Photo.prototype.date = null; +Photo.prototype.albumid = null; +Photo.prototype.description = null; +Photo.prototype.response_obj = function() { + return { + filename: this.filename, + date: this.date, + albumid: this.albumid, + description: this.description + }; +}; + + +/** + * Album module methods. + */ +exports.create_album = function (req, res) { + async.waterfall([ + // make sure the albumid is valid + function (cb) { + if (!req.body || !req.body.name) { + cb(helpers.no_such_album()); + return; + } + + // UNDONE: we should add some code to make sure the album + // doesn't already exist! + cb(null); + }, + + function (cb) { + album_data.create_album(req.body, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var a = new Album(results); + helpers.send_success(res, {album: a.response_obj() }); + } + }); +}; + + +exports.album_by_name = function (req, res) { + async.waterfall([ + // get the album + function (cb) { + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else if (!results) { + helpers.send_failure(res, helpers.no_such_album()); + } else { + var a = new Album(album_data); + helpers.send_success(res, { album: a.response_obj() }); + } + }); +}; + + + +exports.list_all = function (req, res) { + album_data.all_albums("date", true, 0, 25, function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var out = []; + if (results) { + for (var i = 0; i < results.length; i++) { + out.push(new Album(results[i]).response_obj()); + } + } + helpers.send_success(res, { albums: out }); + } + }); +}; + + +exports.photos_for_album = function(req, res) { + var page_num = req.query.page ? req.query.page : 0; + var page_size = req.query.page_size ? req.query.page_size : 1000; + + page_num = parseInt(page_num); + page_size = parseInt(page_size); + if (isNaN(page_num)) page_num = 0; + if (isNaN(page_size)) page_size = 1000; + + var album; + async.waterfall([ + function (cb) { + // first get the album. + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + album = new Album(album_data); + album.photos(page_num, page_size, cb); + }, + function (photos, cb) { + var out = []; + for (var i = 0; i < photos.length; i++) { + out.push(photos[i].response_obj()); + } + cb(null, out); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + return; + } + if (!results) results = []; + var out = { photos: results, + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + + +exports.add_photo_to_album = function (req, res) { + var album; + async.waterfall([ + // make sure we have everything we need. + function (cb) { + if (!req.body) + cb(helpers.missing_data("POST data")); + else if (!req.files || !req.files.photo_file) + cb(helpers.missing_data("a file")); + else if (!helpers.is_image(req.files.photo_file.name)) + cb(helpers.not_image()); + else + // get the album + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + + album = new Album(album_data); + req.body.filename = req.files.photo_file.name; + album.add_photo(req.body, req.files.photo_file.path, cb); + } + ], + function (err, p) { + if (err) { + helpers.send_failure(res, err); + return; + } + var out = { photo: p.response_obj(), + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + diff --git a/Chapter09/03_connection_pools/app/handlers/helpers.js b/Chapter09/03_connection_pools/app/handlers/helpers.js new file mode 100644 index 0000000..e6f0a13 --- /dev/null +++ b/Chapter09/03_connection_pools/app/handlers/helpers.js @@ -0,0 +1,114 @@ + +var path = require('path'); + + +exports.version = '0.1.0'; + + + + +exports.send_success = function(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +exports.send_failure = function(res, err) { + console.log(err); + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +exports.error_for_resp = function (err) { + if (!err instanceof Error) { + console.error("** Unexpected error type! :" + + err.constructor.name); + return JSON.stringify(err); + } else { + var code = err.code ? err.code : err.name; + return JSON.stringify({ error: code, + message: err.message }); + } +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err)); +}; + + +exports.is_image = function (filename) { + switch (path.extname(filename).toLowerCase()) { + case '.jpg': case '.jpeg': case '.png': case '.bmp': + case '.gif': case '.tif': case '.tiff': + return true; + } + + return false; +}; + + +exports.invalid_resource = function () { + return exports.error("invalid_resource", + "The requested resource does not exist."); +}; + + +exports.missing_data = function (what) { + return exports.error("missing_data", + "You must include " + what); +} + + +exports.not_image = function () { + return exports.error("not_image_file", + "The uploaded file must be an image file."); +}; + + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + +exports.http_code_for_error = function (err) { + switch (err.message) { + case "no_such_album": + return 403; + case "invalid_resource": + return 404; + case "invalid_email_address": + return 403; + case "no_such_user": + return 403; + } + + console.log("*** Error needs HTTP response code: " + err.message); + return 503; +} + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.invalid_email_address = function () { + return exports.error("invalid_email_address", + "That's not a valid email address, sorry"); +}; + +exports.auth_failed = function () { + return exports.error("auth_failure", + "Invalid email address / password combination."); +}; \ No newline at end of file diff --git a/Chapter09/03_connection_pools/app/handlers/pages.js b/Chapter09/03_connection_pools/app/handlers/pages.js new file mode 100644 index 0000000..d80a263 --- /dev/null +++ b/Chapter09/03_connection_pools/app/handlers/pages.js @@ -0,0 +1,37 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generate = function (req, res) { + + var page = req.params.page_name; + if (req.params.sub_page && req.params.page_name == 'admin') + page = req.params.page_name + "_" + req.params.sub_page; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, 500, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; + +// if we made it here, then we're logged in. redirect to admin home +exports.login = function (req, res) { + res.redirect("/pages/admin/home"); + res.end(); +}; diff --git a/Chapter09/03_connection_pools/app/handlers/users.js b/Chapter09/03_connection_pools/app/handlers/users.js new file mode 100644 index 0000000..9668cdd --- /dev/null +++ b/Chapter09/03_connection_pools/app/handlers/users.js @@ -0,0 +1,186 @@ +var helpers = require('./helpers.js'), + user_data = require("../data/user.js"), + async = require('async'), + bcrypt = require('bcrypt'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +function User (user_data) { + this.uuid = user_data["user_uuid"]; + this.email_address = user_data["email_address"]; + this.display_name = user_data["display_name"]; + this.password = user_data["password"]; + this.first_seen_date = user_data["first_seen_date"]; + this.last_modified_date = user_data["last_modified_date"]; + this.deleted = user_data["deleted"]; +} + +User.prototype.uuid = null; +User.prototype.email_address = null; +User.prototype.display_name = null; +User.prototype.password = null; +User.prototype.first_seen_date = null; +User.prototype.last_modified_date = null; +User.prototype.deleted = false; +User.prototype.check_password = function (pw, callback) { + bcrypt.compare(pw, this.password, callback); +}; +User.prototype.response_obj = function () { + return { + uuid: this.uuid, + email_address: this.email_address, + display_name: this.display_name, + first_seen_date: this.first_seen_date, + last_modified_date: this.last_modified_date + }; +}; + + + +exports.register = function (req, res) { + async.waterfall([ + function (cb) { + var em = req.body.email_address; + if (!em || em.indexOf("@") == -1) + cb(helpers.invalid_email_address()); + else if (!req.body.display_name) + cb(helpers.missing_data("display_name")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // register da user. + function (cb) { + user_data.register( + req.body.email_address, + req.body.display_name, + req.body.password, + cb); + }, + + // mark user as logged in + function (user_data, cb) { + req.session.logged_in = true; + req.session.logged_in_display_name = req.body.display_name; + req.session.logged_in_date = new Date(); + cb(null, user_data); + } + ], + function (err, user_data) { + if (err) { + helpers.send_failure(res, err); + } else { + var u = new User(user_data); + helpers.send_success(res, {user: u.response_obj() }); + } + }); +}; + + +exports.login = function (req, res) { + var em = req.body.email_address + ? req.body.email_address.trim().toLowerCase() + : ""; + + async.waterfall([ + function (cb) { + if (!em) + cb(helpers.missing_data("email_address")); + else if (req.session + && req.session.logged_in_email_address == em) + cb(helpers.error("already_logged_in", "")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // first get the user by the email address. + function (cb) { + user_data.user_by_email_address(em, cb); + }, + + // check the password + function (user_data, cb) { + var u = new User(user_data); + u.check_password(req.body.password, cb); + }, + + function (auth_ok, cb) { + if (!auth_ok) { + cb(helpers.auth_failed()); + return; + } + + req.session.logged_in = true; + req.session.logged_in_email_address = req.body.email_address; + req.session.logged_in_date = new Date(); + cb(null); + } + ], + function (err, results) { + if (!err || err.message == "already_logged_in") { + helpers.send_success(res, { logged_in: true }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.user_by_display_name = function (req, res) { + async.waterfall([ + // first get the user by the email address. + function (cb) { + user_data.user_by_display_name(req.body.email_address, cb); + } + ], + function (err, u) { + if (!err) { + helpers.send_success(res, { user: u.response_obj() }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.authenticate_API = function (un, pw, callback) { + if (req.session && req.session.logged_in + && req.session.logged_in_email_address == un) { + callback(null, un); + return; + } + + async.waterfall([ + function (cb) { + user_data.user_by_email_address(un, cb); + }, + + function (user_data, cb) { + var u = new User(user_data); + u.check_password(pw, cb); + } + ], + function (err, results) { + if (!err) { + callback(null, un); + } else { + callback(new Error("bogus credentials")); + } + }); +}; + +exports.logged_in = function (req, res) { + var li = (req.session && req.session.logged_in_email_address); + helpers.send_success(res, { logged_in: li }); +}; + +exports.logout = function (req, res) { + req.session = null; + helpers.send_success(res, { logged_out: true }); +}; diff --git a/Chapter09/03_connection_pools/app/local.config.js b/Chapter09/03_connection_pools/app/local.config.js new file mode 100644 index 0000000..85e0a8d --- /dev/null +++ b/Chapter09/03_connection_pools/app/local.config.js @@ -0,0 +1,16 @@ + + +exports.config = { + db_config: { + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums", + + pooled_connections: 125, + idle_timeout_millis: 30000 + }, + + static_content: "../static/" +}; + diff --git a/Chapter09/03_connection_pools/app/package.json b/Chapter09/03_connection_pools/app/package.json new file mode 100644 index 0000000..a6f903b --- /dev/null +++ b/Chapter09/03_connection_pools/app/package.json @@ -0,0 +1,14 @@ +{ + "name": "MySQL-Demo", + "description": "Demonstrates Using MySQL Database connectivity", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x", + "generic-pool": "2.x", + "mysql": "2.x", + "bcrypt": "0.x", + "node-uuid": "1.x" + } +} diff --git a/Chapter09/03_connection_pools/app/server.js b/Chapter09/03_connection_pools/app/server.js new file mode 100644 index 0000000..6e2b17c --- /dev/null +++ b/Chapter09/03_connection_pools/app/server.js @@ -0,0 +1,73 @@ + +var express = require('express'); +var app = express(); + +var db = require('./data/db.js'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + user_hdlr = require('./handlers/users.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.logger('dev')); +app.use(express.bodyParser({ keepExtensions: true })); +app.use(express.static(__dirname + "/../static")); +app.use(express.cookieParser("kitten on keyboard")); +app.use(express.cookieSession({ + secret: "FLUFFY BUNNIES", + maxAge: 86400000 +})); + +/** + * API Server requests. + */ +app.get('/v1/albums.json', album_hdlr.list_all); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); +app.put('/v1/albums.json', album_hdlr.create_album); + +app.get('/v1/albums/:album_name/photos.json', album_hdlr.photos_for_album); +app.put('/v1/albums/:album_name/photos.json', album_hdlr.add_photo_to_album); + +app.put('/v1/users.json', user_hdlr.register); + + +/** + * add-on requests we support for the purposes of the web interface + * to the server. + */ +app.get('/pages/:page_name', requirePageLogin, page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', requirePageLogin, page_hdlr.generate); +app.post('/service/login', user_hdlr.login); + + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + +function requirePageLogin(req, res, next) { + if (req.params && req.params.page_name == 'admin') { + if (req.session && req.session.logged_in) { + next(); + } else { + res.redirect("/pages/login"); + } + } else + next(); +} + +require('./data/db.js').init(function (err) { + if (err) { + console.log("\nFATAL ERROR INITIALISING DATABASE:"); + console.log(err); + } else { + app.listen(8080); + } +}); + diff --git a/Chapter09/03_connection_pools/schema.sql b/Chapter09/03_connection_pools/schema.sql new file mode 100644 index 0000000..61ab5c3 --- /dev/null +++ b/Chapter09/03_connection_pools/schema.sql @@ -0,0 +1,53 @@ +DROP DATABASE IF EXISTS PhotoAlbums; + + +CREATE DATABASE PhotoAlbums + DEFAULT CHARACTER SET utf8 + DEFAULT COLLATE utf8_general_ci; + +USE PhotoAlbums; + + +CREATE TABLE Albums +( + name VARCHAR(50) UNIQUE PRIMARY KEY, + title VARCHAR(100), + date DATETIME, + description VARCHAR(500), + + -- allow for sorting on date. + INDEX(date) +) +ENGINE = InnoDB; + +CREATE TABLE Photos +( + album_name VARCHAR(50), + filename VARCHAR(50), + description VARCHAR(500), + date DATETIME, + + FOREIGN KEY (album_name) REFERENCES Albums (name), + INDEX (album_name, date) +) +ENGINE = InnoDB; + + +CREATE TABLE Users +( + user_uuid VARCHAR(50) UNIQUE PRIMARY KEY, + email_address VARCHAR(150) UNIQUE, + + display_name VARCHAR(100) UNIQUE, + password VARCHAR(100), + + first_seen_date BIGINT, + last_modified_date BIGINT, + deleted BOOL DEFAULT false, + + INDEX(email_address, deleted), + INDEX(user_uuid, deleted) +) +ENGINE = InnoDB; + + diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_01.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_02.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_03.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_04.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_05.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_06.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_07.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_08.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/australia2010/aus_09.jpg b/Chapter09/03_connection_pools/static/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/italy2012/picture_01.jpg b/Chapter09/03_connection_pools/static/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/italy2012/picture_02.jpg b/Chapter09/03_connection_pools/static/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/italy2012/picture_03.jpg b/Chapter09/03_connection_pools/static/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/italy2012/picture_04.jpg b/Chapter09/03_connection_pools/static/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/italy2012/picture_05.jpg b/Chapter09/03_connection_pools/static/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_001.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_002.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_003.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_004.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_005.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_006.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/albums/japan2010/picture_007.jpg b/Chapter09/03_connection_pools/static/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/03_connection_pools/static/content/#album.js# b/Chapter09/03_connection_pools/static/content/#album.js# new file mode 100644 index 0000000..442c047 --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/#album.js# @@ -0,0 +1,60 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +xundo \ No newline at end of file diff --git a/Chapter09/03_connection_pools/static/content/admin_add_album.js b/Chapter09/03_connection_pools/static/content/admin_add_album.js new file mode 100644 index 0000000..f2987d6 --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/admin_add_album.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_album.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/03_connection_pools/static/content/admin_add_photos.js b/Chapter09/03_connection_pools/static/content/admin_add_photos.js new file mode 100644 index 0000000..350e536 --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/admin_add_photos.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_photos.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/03_connection_pools/static/content/admin_home.js b/Chapter09/03_connection_pools/static/content/admin_home.js new file mode 100644 index 0000000..820f7fd --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/admin_home.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_home.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/03_connection_pools/static/content/album.js b/Chapter09/03_connection_pools/static/content/album.js new file mode 100644 index 0000000..c4d918e --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/album.js @@ -0,0 +1,67 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +$.urlParam = function(name){ + var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); + if (!results) + { + return 0; + } + return results[1] || 0; +} \ No newline at end of file diff --git a/Chapter09/03_connection_pools/static/content/home.js b/Chapter09/03_connection_pools/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/03_connection_pools/static/content/jquery-1.8.3.min.js b/Chapter09/03_connection_pools/static/content/jquery-1.8.3.min.js new file mode 100644 index 0000000..83589da --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/jquery-1.8.3.min.js @@ -0,0 +1,2 @@ +/*! jQuery v1.8.3 jquery.com | jquery.org/license */ +(function(e,t){function _(e){var t=M[e]={};return v.each(e.split(y),function(e,n){t[n]=!0}),t}function H(e,n,r){if(r===t&&e.nodeType===1){var i="data-"+n.replace(P,"-$1").toLowerCase();r=e.getAttribute(i);if(typeof 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v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window); \ No newline at end of file diff --git a/Chapter09/03_connection_pools/static/content/login.js b/Chapter09/03_connection_pools/static/content/login.js new file mode 100644 index 0000000..fd52f1d --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/login.js @@ -0,0 +1,30 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/login.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page +// $.getJSON("/v1/users/logged_in.json", function (d) { +// $.extend(tdata, d); +// }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { +// if (tdata.data.logged_in) +// window.location = "/pages/admin/home"; +// else { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); +// } + }); + }(); +}); diff --git a/Chapter09/03_connection_pools/static/content/mustache.js b/Chapter09/03_connection_pools/static/content/mustache.js new file mode 100644 index 0000000..0148d29 --- /dev/null +++ b/Chapter09/03_connection_pools/static/content/mustache.js @@ -0,0 +1,625 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // diff --git a/Chapter09/03_connection_pools/static/templates/admin_add_photos.html b/Chapter09/03_connection_pools/static/templates/admin_add_photos.html new file mode 100644 index 0000000..d9cbe8d --- /dev/null +++ b/Chapter09/03_connection_pools/static/templates/admin_add_photos.html @@ -0,0 +1,86 @@ +
+ +
+
Add to Album:
+
+ +
+
Image:
+
+
Description
+
+
+ + + + + +
+ + diff --git a/Chapter09/03_connection_pools/static/templates/admin_home.html b/Chapter09/03_connection_pools/static/templates/admin_home.html new file mode 100644 index 0000000..4db4cf1 --- /dev/null +++ b/Chapter09/03_connection_pools/static/templates/admin_home.html @@ -0,0 +1,7 @@ + +

Admin Operations

+ + diff --git a/Chapter09/03_connection_pools/static/templates/album.html b/Chapter09/03_connection_pools/static/templates/album.html new file mode 100644 index 0000000..fbcbda2 --- /dev/null +++ b/Chapter09/03_connection_pools/static/templates/album.html @@ -0,0 +1,20 @@ + +
+ {{#has_photos}} +

There are {{ has_photos }} photos in this album

+ {{/has_photos}} + {{#photos}} +
+
+
+
+

{{ desc }}

+
+
+ {{/photos}} +
+ {{^photos}} +

This album does't have any photos in it, sorry.

+ {{/photos}} +

diff --git a/Chapter09/03_connection_pools/static/templates/home.html b/Chapter09/03_connection_pools/static/templates/home.html new file mode 100644 index 0000000..90ff5fc --- /dev/null +++ b/Chapter09/03_connection_pools/static/templates/home.html @@ -0,0 +1,17 @@ +
+ Register | + Admin +
+
+

There are {{ albums.length }} albums

+
    + {{#albums}} +
  • + {{name}} +
    • + {{/albums}} + {{^albums}} +
  • Sorry, there are currently no albums
    • + {{/albums}} +
+
diff --git a/Chapter09/03_connection_pools/static/templates/login.html b/Chapter09/03_connection_pools/static/templates/login.html new file mode 100644 index 0000000..7bbcc3f --- /dev/null +++ b/Chapter09/03_connection_pools/static/templates/login.html @@ -0,0 +1,49 @@ + +
+
+
+
Email address:
+
+
Password:
+
+
+
+ + + + diff --git a/Chapter09/03_connection_pools/static/templates/register.html b/Chapter09/03_connection_pools/static/templates/register.html new file mode 100644 index 0000000..2934caa --- /dev/null +++ b/Chapter09/03_connection_pools/static/templates/register.html @@ -0,0 +1,56 @@ + + +
+
+
+
Email address:
+
+
Display Name:
+
+
Password:
+
+
Password (confirm):
+
+
+
+ + + + diff --git a/Chapter09/03_connection_pools/test.jpg b/Chapter09/03_connection_pools/test.jpg new file mode 100644 index 0000000..6e4250a Binary files /dev/null and b/Chapter09/03_connection_pools/test.jpg differ diff --git a/Chapter09/04_api_auth_added/app/basic.html b/Chapter09/04_api_auth_added/app/basic.html new file mode 100644 index 0000000..0d966da --- /dev/null +++ b/Chapter09/04_api_auth_added/app/basic.html @@ -0,0 +1,25 @@ + + + + Photo Album + + + + + + + + + + + + + + + + + diff --git a/Chapter09/04_api_auth_added/app/data/album.js b/Chapter09/04_api_auth_added/app/data/album.js new file mode 100644 index 0000000..d28fa6a --- /dev/null +++ b/Chapter09/04_api_auth_added/app/data/album.js @@ -0,0 +1,237 @@ + +var fs = require('fs'), + local = require('../local.config.js'), + db = require('./db.js'), + path = require("path"), + async = require('async'), + backhelp = require("./backend_helpers.js"); + +exports.version = "0.1.0"; + + +exports.create_album = function (data, callback) { + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data. + function (cb) { + try { + backhelp.verify(data, + [ "name", + "title", + "date", + "description" ]); + if (!backhelp.valid_filename(data.name)) + throw invalid_album_name(); + } catch (e) { + cb(e); + } + + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ data.name, data.title, data.date, data.description ], + cb); + }, + + // make sure the folder exists. + function (results, fields, cb) { + write_succeeded = true; + fs.mkdir(local.config.static_content + + "albums/" + data.name, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err) { + if (write_succeeded) delete_album(dbc, data.name); + if (err instanceof Error && err.code == 'ER_EXISTS') + callback(backhelp.album_already_exists()); + else if (err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err); + } else { + callback(err, err ? null : data); + } + + if (dbc) dbc.end(); + }); +}; + + +exports.album_by_name = function (name, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums WHERE name = ?", + [ name ], + cb); + } + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else if (!results || results.length == 0) { + callback(backhelp.no_such_album()); + } else { + callback(null, results[0]); + } + }); +}; + + +exports.photos_for_album = function (album_name, skip, limit, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!album_name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Photos WHERE album_name = ? LIMIT ?, ?", + [ album_name, skip, limit ], + cb); + }, + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.all_albums = function (sort_by, desc, skip, count, callback) { + var dbc; + async.waterfall([ + function (cb) { + db.db(cb); + }, + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums ORDER BY ? " + + (desc ? "DESC" : "ASC") + + " LIMIT ?, ?", + [ sort_by, skip, count ], + cb); + } + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.add_photo = function (photo_data, path_to_photo, callback) { + var base_fn = path.basename(path_to_photo).toLowerCase(); + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data + function (cb) { + try { + backhelp.verify(photo_data, + [ "albumid", "description", "date" ]); + photo_data.filename = base_fn; + if (!backhelp.valid_filename(photo_data.albumid)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Photos VALUES (?, ?, ?, ?)", + [ photo_data.albumid, base_fn, photo_data.description, + photo_data.date ], + cb); + }, + + // now copy the temp file to static content + function (results, cb) { + write_succeeded = true; + var save_path = local.config.static_content + "albums/" + + photo_data.albumid + "/" + base_fn; + backhelp.file_copy(path_to_photo, save_path, true, cb); + }, + + ], + function (err, results) { + if (err && write_succeeded) + delete_photo(dbc, photo_data.albumid, base_fn); + if (err) { + callback (err); + } else { + // clone the object + var pd = JSON.parse(JSON.stringify(photo_data)); + pd.filename = base_fn; + callback(null, pd); + } + if (dbc) dbc.end(); + }); +}; + + +function invalid_album_name() { + return backhelp.error("invalid_album_name", + "Album names can have letters, #s, _ and, -"); +} +function invalid_filename() { + return backhelp.error("invalid_filename", + "Filenames can have letters, #s, _ and, -"); +} + + +function delete_album(dbc, name) { + dbc.query( + "DELETE FROM Albums WHERE name = ?", + [ name ], + function (err, results) {}); +} + +function delete_photo(dbc, albumid, fn) { + dbc.query( + "DELETE FROM Photos WHERE albumid = ? AND filename = ?", + [ albumid, fn ], + function (err, results) { }); +} + diff --git a/Chapter09/04_api_auth_added/app/data/backend_helpers.js b/Chapter09/04_api_auth_added/app/data/backend_helpers.js new file mode 100644 index 0000000..2df8e6b --- /dev/null +++ b/Chapter09/04_api_auth_added/app/data/backend_helpers.js @@ -0,0 +1,117 @@ + +var fs = require('fs'); + + +exports.verify = function (data, field_names) { + for (var i = 0; i < field_names.length; i++) { + if (!data[field_names[i]]) { + throw exports.error("missing_data", + field_names[i] + " not optional"); + } + } + + return true; +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err.message)); +} + + + +/** + * Possible signatures: + * src, dst, callback + * src, dst, can_overwrite, callback + */ +exports.file_copy = function () { + + var src, dst, callback; + var can_overwrite = false; + + if (arguments.length == 3) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[2]; + } else if (arguments.length == 4) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[3]; + can_overwrite = arguments[2] + } + + function copy(err) { + var is, os; + + if (!err && !can_overwrite) { + return callback(backhelp.error("file_exists", + "File " + dst + " exists.")); + } + + fs.stat(src, function (err) { + if (err) { + return callback(err); + } + + is = fs.createReadStream(src); + os = fs.createWriteStream(dst); + is.on('end', function () { callback(null); }); + is.on('error', function (e) { callback(e); }); + is.pipe(os); + }); + } + + fs.stat(dst, copy); +}; + + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.db_error = function () { + return exports.error("server_error", + "Something horrible has happened with our database!"); +}; + +exports.album_already_exists = function () { + return exports.error("album_already_exists", + "An album with this name already exists."); +}; + +exports.missing_data = function (field) { + return exports.error("missing_data", "You must provide: " + field); +}; + +exports.no_such_user = function () { + return exports.error("no_such_user", + "The specified user does not exist"); +}; + + +exports.user_already_registered = function () { + return exports.error("user_already_registered", + "This user appears to exist already!"); +}; + + + +/** + * node-mysql sometimes adds extra data to callbacks to be helpful. + * this can mess up our waterfall, however, so we'll strip those + * out. + */ +exports.mscb = function (cb) { + return function (err, results) { + cb(err, results); + } +} diff --git a/Chapter09/04_api_auth_added/app/data/db.js b/Chapter09/04_api_auth_added/app/data/db.js new file mode 100644 index 0000000..b929d03 --- /dev/null +++ b/Chapter09/04_api_auth_added/app/data/db.js @@ -0,0 +1,14 @@ +var mysql = require('mysql'), + local = require("../local.config.js"); + +exports.db = function (callback) { + + conn_props = local.config.db_config; + var c = mysql.createConnection({ + host: conn_props.host, + user: conn_props.user, + password: conn_props.password, + database: conn_props.database + }); + callback(null, c); +}; diff --git a/Chapter09/04_api_auth_added/app/data/user.js b/Chapter09/04_api_auth_added/app/data/user.js new file mode 100644 index 0000000..29fe49c --- /dev/null +++ b/Chapter09/04_api_auth_added/app/data/user.js @@ -0,0 +1,127 @@ + +var async = require('async'), + bcrypt = require('bcrypt'), + db = require("./db.js"), + uuid = require('node-uuid'), + backhelp = require("./backend_helpers.js"); + + +exports.version = "0.1.0"; + +exports.user_by_uuid = function (uuid, callback) { + if (!uuid) + callback(backhelp.missing_data("uuid")); + else + user_by_field("user_uuid", uuid, callback); +}; + +exports.user_by_display_name = function (dn, callback) { + if (!dn) + callback(backhelp.missing_data("display_name")); + else + user_by_field("display_name", dn, callback); +} + +exports.user_by_email_address = function (email, callback) { + if (!email) + callback(backhelp.missing_data("email")); + else + user_by_field("email_address", email, callback); +}; + +exports.register = function (email, display_name, password, callback) { + var dbc; + var userid; + async.waterfall([ + // validate ze params + function (cb) { + if (!email || email.indexOf("@") == -1) + cb(backhelp.missing_data("email")); + else if (!display_name) + cb(backhelp.missing_data("display_name")); + else if (!password) + cb(backhelp.missing_data("password")); + else + cb(null); + }, + + // get a connection + function (cb) { + db.db(cb); + }, + + // generate a password hash + function (dbclient, cb) { + dbc = dbclient; + bcrypt.hash(password, 10, cb); + }, + + // register the account. + function (hash, cb) { + userid = uuid(); + var now = Math.round((new Date()).getTime() / 1000); + dbc.query( + "INSERT INTO Users VALUES (?, ?, ?, ?, ?, NULL, 0)", + [ userid, email.trim(), display_name.trim(), hash, now ], + cb); + }, + + // fetch and return the new user. + function (results, fields, cb) { + exports.user_by_uuid(userid, cb); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + if (err.code + && (err.code == 'ER_DUP_KEYNAME' + || err.code == 'ER_EXISTS' + || err.code == 'ER_DUP_ENTRY')) + callback(backhelp.user_already_registered()); + else + callback (err); + } else { + callback(null, user_data); + } + }); +}; + + + + +function user_by_field (field, value, callback) { + var dbc; + async.waterfall([ + // get a connection + function (cb) { + db.db(cb); + }, + + // fetch the user. + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Users WHERE " + field + + " = ? AND deleted = false", + [ value ], + cb); + }, + + function (rows, fields, cb) { + if (!rows || rows.length == 0) + cb(backhelp.no_such_user()); + else + cb(null, rows[0]); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + console.log(user_data); + callback(null, user_data); + } + }); +} \ No newline at end of file diff --git a/Chapter09/04_api_auth_added/app/handlers/albums.js b/Chapter09/04_api_auth_added/app/handlers/albums.js new file mode 100644 index 0000000..ac2da86 --- /dev/null +++ b/Chapter09/04_api_auth_added/app/handlers/albums.js @@ -0,0 +1,259 @@ + +var helpers = require('./helpers.js'), + album_data = require("../data/album.js"), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +/** + * Album class. + */ +function Album (album_data) { + this.name = album_data.name; + this.date = album_data.date; + this.title = album_data.title; + this.description = album_data.description; + this._id = album_data._id; +} + +Album.prototype.name = null; +Album.prototype.date = null; +Album.prototype.title = null; +Album.prototype.description = null; + +Album.prototype.response_obj = function () { + return { name: this.name, + date: this.date, + title: this.title, + description: this.description }; +}; +Album.prototype.photos = function (pn, ps, callback) { + if (this.album_photos != undefined) { + callback(null, this.album_photos); + return; + } + + album_data.photos_for_album( + this.name, + pn, ps, + function (err, results) { + if (err) { + callback(err); + return; + } + + var out = []; + for (var i = 0; i < results.length; i++) { + out.push(new Photo(results[i])); + } + + this.album_photos = out; + callback(null, this.album_photos); + } + ); +}; +Album.prototype.add_photo = function (data, path, callback) { + album_data.add_photo(data, path, function (err, photo_data) { + if (err) + callback(err); + else { + var p = new Photo(photo_data); + if (this.all_photos) + this.all_photos.push(p); + else + this.app_photos = [ p ]; + + callback(null, p); + } + }); +}; + + + + +/** + * Photo class. + */ +function Photo (photo_data) { + this.filename = photo_data.filename; + this.date = photo_data.date; + this.albumid = photo_data.albumid; + this.description = photo_data.description; + this._id = photo_data._id; +} +Photo.prototype._id = null; +Photo.prototype.filename = null; +Photo.prototype.date = null; +Photo.prototype.albumid = null; +Photo.prototype.description = null; +Photo.prototype.response_obj = function() { + return { + filename: this.filename, + date: this.date, + albumid: this.albumid, + description: this.description + }; +}; + + +/** + * Album module methods. + */ +exports.create_album = function (req, res) { + async.waterfall([ + // make sure the albumid is valid + function (cb) { + if (!req.body || !req.body.name) { + cb(helpers.no_such_album()); + return; + } + + // UNDONE: we should add some code to make sure the album + // doesn't already exist! + cb(null); + }, + + function (cb) { + album_data.create_album(req.body, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var a = new Album(results); + helpers.send_success(res, {album: a.response_obj() }); + } + }); +}; + + +exports.album_by_name = function (req, res) { + async.waterfall([ + // get the album + function (cb) { + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else if (!results) { + helpers.send_failure(res, helpers.no_such_album()); + } else { + var a = new Album(album_data); + helpers.send_success(res, { album: a.response_obj() }); + } + }); +}; + + + +exports.list_all = function (req, res) { + album_data.all_albums("date", true, 0, 25, function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var out = []; + if (results) { + for (var i = 0; i < results.length; i++) { + out.push(new Album(results[i]).response_obj()); + } + } + helpers.send_success(res, { albums: out }); + } + }); +}; + + +exports.photos_for_album = function(req, res) { + var page_num = req.query.page ? req.query.page : 0; + var page_size = req.query.page_size ? req.query.page_size : 1000; + + page_num = parseInt(page_num); + page_size = parseInt(page_size); + if (isNaN(page_num)) page_num = 0; + if (isNaN(page_size)) page_size = 1000; + + var album; + async.waterfall([ + function (cb) { + // first get the album. + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + album = new Album(album_data); + album.photos(page_num, page_size, cb); + }, + function (photos, cb) { + var out = []; + for (var i = 0; i < photos.length; i++) { + out.push(photos[i].response_obj()); + } + cb(null, out); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + return; + } + if (!results) results = []; + var out = { photos: results, + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + + +exports.add_photo_to_album = function (req, res) { + var album; + async.waterfall([ + // make sure we have everything we need. + function (cb) { + if (!req.body) + cb(helpers.missing_data("POST data")); + else if (!req.files || !req.files.photo_file) + cb(helpers.missing_data("a file")); + else if (!helpers.is_image(req.files.photo_file.name)) + cb(helpers.not_image()); + else + // get the album + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + + album = new Album(album_data); + req.body.filename = req.files.photo_file.name; + album.add_photo(req.body, req.files.photo_file.path, cb); + } + ], + function (err, p) { + if (err) { + helpers.send_failure(res, err); + return; + } + var out = { photo: p.response_obj(), + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + diff --git a/Chapter09/04_api_auth_added/app/handlers/helpers.js b/Chapter09/04_api_auth_added/app/handlers/helpers.js new file mode 100644 index 0000000..e6f0a13 --- /dev/null +++ b/Chapter09/04_api_auth_added/app/handlers/helpers.js @@ -0,0 +1,114 @@ + +var path = require('path'); + + +exports.version = '0.1.0'; + + + + +exports.send_success = function(res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +} + + +exports.send_failure = function(res, err) { + console.log(err); + var code = (err.code) ? err.code : err.name; + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(JSON.stringify({ error: code, message: err.message }) + "\n"); +} + + +exports.error_for_resp = function (err) { + if (!err instanceof Error) { + console.error("** Unexpected error type! :" + + err.constructor.name); + return JSON.stringify(err); + } else { + var code = err.code ? err.code : err.name; + return JSON.stringify({ error: code, + message: err.message }); + } +} + +exports.error = function (code, message) { + var e = new Error(message); + e.code = code; + return e; +}; + +exports.file_error = function (err) { + return exports.error("file_error", JSON.stringify(err)); +}; + + +exports.is_image = function (filename) { + switch (path.extname(filename).toLowerCase()) { + case '.jpg': case '.jpeg': case '.png': case '.bmp': + case '.gif': case '.tif': case '.tiff': + return true; + } + + return false; +}; + + +exports.invalid_resource = function () { + return exports.error("invalid_resource", + "The requested resource does not exist."); +}; + + +exports.missing_data = function (what) { + return exports.error("missing_data", + "You must include " + what); +} + + +exports.not_image = function () { + return exports.error("not_image_file", + "The uploaded file must be an image file."); +}; + + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + +exports.http_code_for_error = function (err) { + switch (err.message) { + case "no_such_album": + return 403; + case "invalid_resource": + return 404; + case "invalid_email_address": + return 403; + case "no_such_user": + return 403; + } + + console.log("*** Error needs HTTP response code: " + err.message); + return 503; +} + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.invalid_email_address = function () { + return exports.error("invalid_email_address", + "That's not a valid email address, sorry"); +}; + +exports.auth_failed = function () { + return exports.error("auth_failure", + "Invalid email address / password combination."); +}; \ No newline at end of file diff --git a/Chapter09/04_api_auth_added/app/handlers/pages.js b/Chapter09/04_api_auth_added/app/handlers/pages.js new file mode 100644 index 0000000..3e9baae --- /dev/null +++ b/Chapter09/04_api_auth_added/app/handlers/pages.js @@ -0,0 +1,42 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generateAdmin = function (req, res) { + req.params.page_name = 'admin'; + exports.generate(req, res); +}; + +exports.generate = function (req, res) { + + var page = req.params.page_name; + if (req.params.sub_page && req.params.page_name == 'admin') + page = req.params.page_name + "_" + req.params.sub_page; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, 500, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; + +// if we made it here, then we're logged in. redirect to admin home +exports.login = function (req, res) { + res.redirect("/pages/admin/home"); + res.end(); +}; diff --git a/Chapter09/04_api_auth_added/app/handlers/users.js b/Chapter09/04_api_auth_added/app/handlers/users.js new file mode 100644 index 0000000..cfadfbb --- /dev/null +++ b/Chapter09/04_api_auth_added/app/handlers/users.js @@ -0,0 +1,170 @@ +var helpers = require('./helpers.js'), + user_data = require("../data/user.js"), + async = require('async'), + bcrypt = require('bcrypt'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +function User (user_data) { + this.uuid = user_data["user_uuid"]; + this.email_address = user_data["email_address"]; + this.display_name = user_data["display_name"]; + this.password = user_data["password"]; + this.first_seen_date = user_data["first_seen_date"]; + this.last_modified_date = user_data["last_modified_date"]; + this.deleted = user_data["deleted"]; +} + +User.prototype.uuid = null; +User.prototype.email_address = null; +User.prototype.display_name = null; +User.prototype.password = null; +User.prototype.first_seen_date = null; +User.prototype.last_modified_date = null; +User.prototype.deleted = false; +User.prototype.check_password = function (pw, callback) { + bcrypt.compare(pw, this.password, callback); +}; +User.prototype.response_obj = function () { + return { + uuid: this.uuid, + email_address: this.email_address, + display_name: this.display_name, + first_seen_date: this.first_seen_date, + last_modified_date: this.last_modified_date + }; +}; + + + +exports.register = function (req, res) { + async.waterfall([ + function (cb) { + var em = req.body.email_address; + if (!em || em.indexOf("@") == -1) + cb(helpers.invalid_email_address()); + else if (!req.body.display_name) + cb(helpers.missing_data("display_name")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // register da user. + function (cb) { + user_data.register( + req.body.email_address, + req.body.display_name, + req.body.password, + cb); + }, + + // mark user as logged in + function (user_data, cb) { + req.session.logged_in = true; + req.session.logged_in_display_name = req.body.display_name; + req.session.logged_in_date = new Date(); + cb(null, user_data); + } + ], + function (err, user_data) { + if (err) { + helpers.send_failure(res, err); + } else { + var u = new User(user_data); + helpers.send_success(res, {user: u.response_obj() }); + } + }); +}; + + +exports.login = function (req, res) { + var em = req.body.email_address + ? req.body.email_address.trim().toLowerCase() + : ""; + + async.waterfall([ + function (cb) { + if (!em) + cb(helpers.missing_data("email_address")); + else if (req.session + && req.session.logged_in_email_address == em) + cb(helpers.error("already_logged_in", "")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // first get the user by the email address. + function (cb) { + user_data.user_by_email_address(em, cb); + }, + + // check the password + function (user_data, cb) { + var u = new User(user_data); + u.check_password(req.body.password, cb); + }, + + function (auth_ok, cb) { + if (!auth_ok) { + cb(helpers.auth_failed()); + return; + } + + req.session.logged_in = true; + req.session.logged_in_email_address = req.body.email_address; + req.session.logged_in_date = new Date(); + cb(null); + } + ], + function (err, results) { + if (!err || err.message == "already_logged_in") { + helpers.send_success(res, { logged_in: true }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.user_by_display_name = function (req, res) { + async.waterfall([ + // first get the user by the email address. + function (cb) { + user_data.user_by_display_name(req.body.email_address, cb); + } + ], + function (err, u) { + if (!err) { + helpers.send_success(res, { user: u.response_obj() }); + } else { + helpers.send_failure(res, err); + } + }); +}; + + +exports.authenticate_API = function (un, pw, callback) { + async.waterfall([ + function (cb) { + user_data.user_by_email_address(un, cb); + }, + + function (user_data, cb) { + var u = new User(user_data); + u.check_password(pw, cb); + } + ], + function (err, results) { + if (!err) { + callback(null, un); + } else { + callback(new Error("bogus credentials")); + } + }); +}; diff --git a/Chapter09/04_api_auth_added/app/local.config.js b/Chapter09/04_api_auth_added/app/local.config.js new file mode 100644 index 0000000..85e0a8d --- /dev/null +++ b/Chapter09/04_api_auth_added/app/local.config.js @@ -0,0 +1,16 @@ + + +exports.config = { + db_config: { + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums", + + pooled_connections: 125, + idle_timeout_millis: 30000 + }, + + static_content: "../static/" +}; + diff --git a/Chapter09/04_api_auth_added/app/package.json b/Chapter09/04_api_auth_added/app/package.json new file mode 100644 index 0000000..a6f903b --- /dev/null +++ b/Chapter09/04_api_auth_added/app/package.json @@ -0,0 +1,14 @@ +{ + "name": "MySQL-Demo", + "description": "Demonstrates Using MySQL Database connectivity", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x", + "generic-pool": "2.x", + "mysql": "2.x", + "bcrypt": "0.x", + "node-uuid": "1.x" + } +} diff --git a/Chapter09/04_api_auth_added/app/server.js b/Chapter09/04_api_auth_added/app/server.js new file mode 100644 index 0000000..c5061f2 --- /dev/null +++ b/Chapter09/04_api_auth_added/app/server.js @@ -0,0 +1,103 @@ + +var express = require('express'); +var app = express(); + +var db = require('./data/db.js'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + user_hdlr = require('./handlers/users.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.logger('dev')); +app.use(express.bodyParser({ keepExtensions: true })); +app.use(express.static(__dirname + "/../static")); +app.use(express.cookieParser("kitten on keyboard")); +app.use(express.cookieSession({ + secret: "FLUFFY BUNNIES", + maxAge: 86400000 +})); + +app.get('/v1/albums.json', album_hdlr.list_all); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); +app.put('/v1/albums.json', requireAPILogin, album_hdlr.create_album); + +app.get('/v1/albums/:album_name/photos.json', album_hdlr.photos_for_album); +app.put('/v1/albums/:album_name/photos.json', + requireAPILogin, album_hdlr.add_photo_to_album); + + +// add-on requests we support for the purposes of the web interface +// to the server. +app.get('/pages/admin/:sub_page', + requirePageLogin, page_hdlr.generateAdmin); +app.get('/pages/:page_name', page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', page_hdlr.generate); +app.post('/service/login', user_hdlr.login); + +app.put('/v1/users.json', user_hdlr.register); +app.get('/v1/users/:display_name.json', user_hdlr.user_by_display_name); + + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + + +function requireAPILogin(req, res, next) { + // if they're using the API from the browser, then they'll be auth'd + if (req.session && req.session.logged_in) { + next(); + return; + } + var rha = req.headers.authorization; + if (rha && rha.search('Basic ') === 0) { + var creds = new Buffer(rha.split(' ')[1], 'base64').toString(); + var parts = creds.split(":"); + user_hdlr.authenticate_API( + parts[0], + parts[1], + function (err, resp) { + if (!err && resp) { + next(); + } else + need_auth(req, res); + } + ); + } else + need_auth(req, res); +} + + +function requirePageLogin(req, res, next) { + if (req.session && req.session.logged_in) { + next(); + } else { + res.redirect("/pages/login"); + } +} + +function need_auth(req, res) { + res.header('WWW-Authenticate', + 'Basic realm="Authorization required"'); + if (req.headers.authorization) { + // no more than 1 failure / 5s + setTimeout(function () { + res.send('Authentication required\n', 401); + }, 5000); + } else { + res.send('Authentication required\n', 401); + } +} + + +app.listen(8080); + + diff --git a/Chapter09/04_api_auth_added/app/user.js b/Chapter09/04_api_auth_added/app/user.js new file mode 100644 index 0000000..fd79c87 --- /dev/null +++ b/Chapter09/04_api_auth_added/app/user.js @@ -0,0 +1,129 @@ + +var async = require('async'), + bcrypt = require('bcrypt'), + db = require("./db.js"), + uuid = require('node-uuid'), + backhelp = require("./backend_helpers.js"); + + +exports.version = "0.1.0"; + +exports.user_by_uuid = function (uuid, callback) { + if (!uuid) + callback(backhelp.missing_data("uuid")); + else + user_by_field("user_uuid", uuid, callback); +}; + +exports.user_by_display_name = function (dn, callback) { + if (!dn) + callback(backhelp.missing_data("display_name")); + else + user_by_field("display_name", dn, callback); +} + +exports.user_by_email_address = function (email, callback) { + if (!email) + callback(backhelp.missing_data("email")); + else + user_by_field("email_address", email, callback); +}; + + + + +exports.register = function (email, display_name, password, callback) { + var dbc; + var userid; + async.waterfall([ + // validate ze params + function (cb) { + if (!email || email.indexOf("@") == -1) + cb(backhelp.missing_data("email")); + else if (!display_name) + cb(backhelp.missing_data("display_name")); + else if (!password) + cb(backhelp.missing_data("password")); + else + cb(null); + }, + + // get a connection + function (cb) { + db.db(cb); + }, + + // generate a password hash + function (dbclient, cb) { + dbc = dbclient; + bcrypt.hash(password, 10, cb); + }, + + // register the account. + function (hash, cb) { + userid = uuid(); + var now = Math.round((new Date()).getTime() / 1000); + dbc.query( + "INSERT INTO Users VALUES (?, ?, ?, ?, ?, NULL, 0)", + [ userid, email.trim(), display_name.trim(), hash, now ], + backhelp.mscb(cb)); + }, + + // fetch and return the new user. + function (results, cb) { + exports.user_by_uuid(userid, cb); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + if (err.code + && (err.code == 'ER_DUP_KEYNAME' + || err.code == 'ER_EXISTS' + || err.code == 'ER_DUP_ENTRY')) + callback(backhelp.user_already_registered()); + else + callback (err); + } else { + callback(null, user_data); + } + }); +}; + + + +function user_by_field (field, value, callback) { + var dbc; + async.waterfall([ + // get a connection + function (cb) { + db.db(cb); + }, + + // fetch the user. + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Users WHERE " + field + + " = ? AND deleted = false", + [ value ], + backhelp.mscb(cb)); + }, + + function (rows, cb) { + if (!rows || rows.length == 0) + cb(backhelp.no_such_user()); + else + cb(null, rows[0]); + } + ], + function (err, user_data) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + console.log(user_data); + callback(null, user_data); + } + }); +} \ No newline at end of file diff --git a/Chapter09/04_api_auth_added/schema.sql b/Chapter09/04_api_auth_added/schema.sql new file mode 100644 index 0000000..61ab5c3 --- /dev/null +++ b/Chapter09/04_api_auth_added/schema.sql @@ -0,0 +1,53 @@ +DROP DATABASE IF EXISTS PhotoAlbums; + + +CREATE DATABASE PhotoAlbums + DEFAULT CHARACTER SET utf8 + DEFAULT COLLATE utf8_general_ci; + +USE PhotoAlbums; + + +CREATE TABLE Albums +( + name VARCHAR(50) UNIQUE PRIMARY KEY, + title VARCHAR(100), + date DATETIME, + description VARCHAR(500), + + -- allow for sorting on date. + INDEX(date) +) +ENGINE = InnoDB; + +CREATE TABLE Photos +( + album_name VARCHAR(50), + filename VARCHAR(50), + description VARCHAR(500), + date DATETIME, + + FOREIGN KEY (album_name) REFERENCES Albums (name), + INDEX (album_name, date) +) +ENGINE = InnoDB; + + +CREATE TABLE Users +( + user_uuid VARCHAR(50) UNIQUE PRIMARY KEY, + email_address VARCHAR(150) UNIQUE, + + display_name VARCHAR(100) UNIQUE, + password VARCHAR(100), + + first_seen_date BIGINT, + last_modified_date BIGINT, + deleted BOOL DEFAULT false, + + INDEX(email_address, deleted), + INDEX(user_uuid, deleted) +) +ENGINE = InnoDB; + + diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_01.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_02.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_03.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_04.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_05.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_06.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_06.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_07.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_07.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_08.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_08.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/australia2010/aus_09.jpg b/Chapter09/04_api_auth_added/static/albums/australia2010/aus_09.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/italy2012/picture_01.jpg b/Chapter09/04_api_auth_added/static/albums/italy2012/picture_01.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/italy2012/picture_02.jpg b/Chapter09/04_api_auth_added/static/albums/italy2012/picture_02.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/italy2012/picture_03.jpg b/Chapter09/04_api_auth_added/static/albums/italy2012/picture_03.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/italy2012/picture_04.jpg b/Chapter09/04_api_auth_added/static/albums/italy2012/picture_04.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/italy2012/picture_05.jpg b/Chapter09/04_api_auth_added/static/albums/italy2012/picture_05.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_001.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_001.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_002.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_002.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_003.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_003.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_004.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_004.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_005.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_005.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_006.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_006.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/albums/japan2010/picture_007.jpg b/Chapter09/04_api_auth_added/static/albums/japan2010/picture_007.jpg new file mode 100644 index 0000000..e69de29 diff --git a/Chapter09/04_api_auth_added/static/content/#album.js# b/Chapter09/04_api_auth_added/static/content/#album.js# new file mode 100644 index 0000000..442c047 --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/#album.js# @@ -0,0 +1,60 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +xundo \ No newline at end of file diff --git a/Chapter09/04_api_auth_added/static/content/admin_add_album.js b/Chapter09/04_api_auth_added/static/content/admin_add_album.js new file mode 100644 index 0000000..f2987d6 --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/admin_add_album.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_album.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/04_api_auth_added/static/content/admin_add_photos.js b/Chapter09/04_api_auth_added/static/content/admin_add_photos.js new file mode 100644 index 0000000..350e536 --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/admin_add_photos.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_photos.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/04_api_auth_added/static/content/admin_home.js b/Chapter09/04_api_auth_added/static/content/admin_home.js new file mode 100644 index 0000000..820f7fd --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/admin_home.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_home.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter09/04_api_auth_added/static/content/album.js b/Chapter09/04_api_auth_added/static/content/album.js new file mode 100644 index 0000000..c4d918e --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/album.js @@ -0,0 +1,67 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +$.urlParam = function(name){ + var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); + if (!results) + { + return 0; + } + return results[1] || 0; +} \ No newline at end of file diff --git a/Chapter09/04_api_auth_added/static/content/home.js b/Chapter09/04_api_auth_added/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); 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v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window); \ No newline at end of file diff --git a/Chapter09/04_api_auth_added/static/content/login.js b/Chapter09/04_api_auth_added/static/content/login.js new file mode 100644 index 0000000..fd52f1d --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/login.js @@ -0,0 +1,30 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/login.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page +// $.getJSON("/v1/users/logged_in.json", function (d) { +// $.extend(tdata, d); +// }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { +// if (tdata.data.logged_in) +// window.location = "/pages/admin/home"; +// else { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); +// } + }); + }(); +}); diff --git a/Chapter09/04_api_auth_added/static/content/mustache.js b/Chapter09/04_api_auth_added/static/content/mustache.js new file mode 100644 index 0000000..0148d29 --- /dev/null +++ b/Chapter09/04_api_auth_added/static/content/mustache.js @@ -0,0 +1,625 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // diff --git a/Chapter09/04_api_auth_added/static/templates/admin_add_photos.html b/Chapter09/04_api_auth_added/static/templates/admin_add_photos.html new file mode 100644 index 0000000..d9cbe8d --- /dev/null +++ b/Chapter09/04_api_auth_added/static/templates/admin_add_photos.html @@ -0,0 +1,86 @@ +
+ +
+
Add to Album:
+
+ +
+
Image:
+
+
Description
+
+
+ + + + + +
+ + diff --git a/Chapter09/04_api_auth_added/static/templates/admin_home.html b/Chapter09/04_api_auth_added/static/templates/admin_home.html new file mode 100644 index 0000000..4db4cf1 --- /dev/null +++ b/Chapter09/04_api_auth_added/static/templates/admin_home.html @@ -0,0 +1,7 @@ + +

Admin Operations

+ + diff --git a/Chapter09/04_api_auth_added/static/templates/album.html b/Chapter09/04_api_auth_added/static/templates/album.html new file mode 100644 index 0000000..fbcbda2 --- /dev/null +++ b/Chapter09/04_api_auth_added/static/templates/album.html @@ -0,0 +1,20 @@ + +
+ {{#has_photos}} +

There are {{ has_photos }} photos in this album

+ {{/has_photos}} + {{#photos}} +
+
+
+
+

{{ desc }}

+
+
+ {{/photos}} +
+ {{^photos}} +

This album does't have any photos in it, sorry.

+ {{/photos}} +

diff --git a/Chapter09/04_api_auth_added/static/templates/home.html b/Chapter09/04_api_auth_added/static/templates/home.html new file mode 100644 index 0000000..90ff5fc --- /dev/null +++ b/Chapter09/04_api_auth_added/static/templates/home.html @@ -0,0 +1,17 @@ +
+ Register | + Admin +
+
+

There are {{ albums.length }} albums

+
    + {{#albums}} +
  • + {{name}} +
    • + {{/albums}} + {{^albums}} +
  • Sorry, there are currently no albums
    • + {{/albums}} +
+
diff --git a/Chapter09/04_api_auth_added/static/templates/login.html b/Chapter09/04_api_auth_added/static/templates/login.html new file mode 100644 index 0000000..7bbcc3f --- /dev/null +++ b/Chapter09/04_api_auth_added/static/templates/login.html @@ -0,0 +1,49 @@ + +
+
+
+
Email address:
+
+
Password:
+
+
+
+ + + + diff --git a/Chapter09/04_api_auth_added/static/templates/register.html b/Chapter09/04_api_auth_added/static/templates/register.html new file mode 100644 index 0000000..2934caa --- /dev/null +++ b/Chapter09/04_api_auth_added/static/templates/register.html @@ -0,0 +1,56 @@ + + +
+
+
+
Email address:
+
+
Display Name:
+
+
Password:
+
+
Password (confirm):
+
+
+
+ + + + diff --git a/Chapter09/04_api_auth_added/test.jpg b/Chapter09/04_api_auth_added/test.jpg new file mode 100644 index 0000000..6e4250a Binary files /dev/null and b/Chapter09/04_api_auth_added/test.jpg differ diff --git a/Chapter10/01_simple/01_behaves.js b/Chapter10/01_simple/01_behaves.js new file mode 100644 index 0000000..f08f7b2 --- /dev/null +++ b/Chapter10/01_simple/01_behaves.js @@ -0,0 +1,7 @@ + + +// simulate a request coming in every 5s +setInterval(function () { + console.log("got request"); +}, 2000); + diff --git a/Chapter10/01_simple/02_occasional_crash.js b/Chapter10/01_simple/02_occasional_crash.js new file mode 100644 index 0000000..839afc4 --- /dev/null +++ b/Chapter10/01_simple/02_occasional_crash.js @@ -0,0 +1,9 @@ + +// simulate a request coming in every 5s, 1/10 chance of a crash +// while processing it +setInterval(function () { + console.log("got request"); + if (Math.round(Math.random() * 10) == 0) + throw new Error("SIMULATED CRASH!"); +}, 2000); + diff --git a/Chapter10/01_simple/02_run.bat b/Chapter10/01_simple/02_run.bat new file mode 100644 index 0000000..70a0122 --- /dev/null +++ b/Chapter10/01_simple/02_run.bat @@ -0,0 +1,6 @@ + +: loop +node 02_occasional_crash +goto loop +: end + diff --git a/Chapter10/01_simple/02_run.sh b/Chapter10/01_simple/02_run.sh new file mode 100644 index 0000000..5606bd1 --- /dev/null +++ b/Chapter10/01_simple/02_run.sh @@ -0,0 +1,6 @@ +#!/bin/bash + +while true +do + node 02_occasional_crash.js +done diff --git a/Chapter10/02_ninja/02_memory_hog.js b/Chapter10/02_ninja/02_memory_hog.js new file mode 100644 index 0000000..1b952ad --- /dev/null +++ b/Chapter10/02_ninja/02_memory_hog.js @@ -0,0 +1,13 @@ + + + +var waste_bin = []; + + + +setInterval(function () { + var b = new Buffer(1000000); + b.fill("x"); + waste_bin.push(b); +}, +1000); diff --git a/Chapter10/02_ninja/03_crashy_crashy.js b/Chapter10/02_ninja/03_crashy_crashy.js new file mode 100644 index 0000000..1c40745 --- /dev/null +++ b/Chapter10/02_ninja/03_crashy_crashy.js @@ -0,0 +1,4 @@ + +setTimeout(function () { + throw new Error("Crashy Crashy McCrasherson"); +}, 2000); diff --git a/Chapter10/02_ninja/node_ninja_runner.sh b/Chapter10/02_ninja/node_ninja_runner.sh new file mode 100644 index 0000000..0f3993e --- /dev/null +++ b/Chapter10/02_ninja/node_ninja_runner.sh @@ -0,0 +1,116 @@ +#!/bin/bash + +# +# !!! IMPORTANT !!!! +# MAKE SURE THESE ARE CORRECT FOR YOUR SYSTEM +# +PGREP=/usr/bin/pgrep +AWK=/usr/bin/awk +NODE=/usr/local/bin/node +PS=/bin/ps +PS_FLAGS=wux # some linux use "ps wup" instead -- check!!! +AWK_PROG='{print $6}' # on OS X and many linux, res mem size is $6 in "$PS_FLAGS" +PAUSE_TIME=4 + + + +txtund=$(tput sgr 0 1) # Underline +txtbld=$(tput bold) # Bold +bldred=${txtbld}$(tput setaf 1) # red +bldylw=${txtbld}$(tput setaf 3) # yellow +bldgrn=${txtbld}$(tput setaf 2) # green +txtrst=$(tput sgr0) # Reset +INFO=${bldgrn}INFO:${txtrst} +ERROR=${bldred}ERROR:${txtrst} +WARN=${bldylw}WARNING:${txtrst} + +app_name=`basename $0` + + +function usage () +{ + echo "usage: $app_name max_memory n_crashes n_minutes script.js [...]" + echo " - max_memory in MB" + echo " - permit no more than 'n_crashes' per 'n_minutes'" + exit 1; +} + +function check_progs +{ + if [ ! -f $NODE ]; then echo "$ERROR Missing $NODE, aborting"; exit 1; fi + if [ ! -f $PGREP ]; then echo "$ERROR Missing $PGREP, aborting"; exit 1; fi + if [ ! -f $AWK ]; then echo "$ERROR Missing $AWK, aborting"; exit 1; fi + if [ ! -f $PS ]; then echo "$ERROR Missing $PS, aborting"; exit 1; fi +} + +function already_running +{ + echo "'node $1' already be running. Cowardly refusing to start another." + exit 1 +} + + +check_progs + +if [ $# -lt 4 ]; +then + usage +fi + +# bash only does integer arithmetic, so we'll mult by 100 +# to avoid decimals +RESTART_WEIGHT=0 +MAX_WEIGHT=$(( $3 * 6000 )) +WEIGHT_TIME_CHUNK=$(( (6000 * $3) / $2 )) +FADE_TIME_CHUNK=$(( ($MAX_WEIGHT / $2) / (600 / ($PAUSE_TIME * 10)) )) +#echo $WEIGHT_TIME_CHUNK $MAX_WEIGHT $FADE_TIME_CHUNK + +# first make sure it's not running. +PID=`$PGREP -n -f "$NODE $4"` +if [ "$PID" != "" ]; then + already_running $4 +fi + +# now launch it and start monitoring +echo "$INFO Launching node..." +$NODE $4 $5 $6 $7 $8 $9 $10 $11 $12 $13 $14 & + +while true +do + sleep $PAUSE_TIME + + PID=`$PGREP -n -f "$NODE $4"` + NEED_RESTART=no + if [ "$PID" == "" ]; then + echo + echo "$WARN Node appears to have crashed." + NEED_RESTART=yes + else + # check memory usage + MEM_USAGE=`$PS $PS_FLAGS $PID | $AWK 'NR>1' | $AWK "$AWK_PROG"` + MEM_USAGE=$(( $MEM_USAGE / 1024 )) + if [ $MEM_USAGE -gt $1 ]; + then + echo "$ERROR node has exceed permitted memory of $1 mb, restarting." + kill $PID + NEED_RESTART=yes + fi + fi + RESTART_WEIGHT=$(($RESTART_WEIGHT - $FADE_TIME_CHUNK)) + if [ "$RESTART_WEIGHT" -lt "0" ]; + then + RESTART_WEIGHT=0 + fi + if [ "$NEED_RESTART" == "yes" ]; + then + if [ "$RESTART_WEIGHT" -le "$MAX_WEIGHT" ]; + then + echo "$INFO Restarting..." + $NODE $4 $5 $6 $7 $8 $9 $10 $11 $12 $13 $14 & + RESTART_WEIGHT=$(( $RESTART_WEIGHT + $WEIGHT_TIME_CHUNK )) + else + echo "$ERROR Too many restarts. Aborting." + exit -1 + fi + fi +done diff --git a/Chapter10/02_ninja/test.js b/Chapter10/02_ninja/test.js new file mode 100644 index 0000000..7741f12 --- /dev/null +++ b/Chapter10/02_ninja/test.js @@ -0,0 +1,5 @@ + + +setInterval(function() { console.log("hello"); }, 1000); + + diff --git a/Chapter10/03_roundrobin/package.json b/Chapter10/03_roundrobin/package.json new file mode 100644 index 0000000..9abe672 --- /dev/null +++ b/Chapter10/03_roundrobin/package.json @@ -0,0 +1,9 @@ +{ + "name": "Round-Robin-Demo", + "description": "A little proxy server to round-robin requests", + "version": "0.0.1", + "private": true, + "dependencies": { + "http-proxy": "0.8.x" + } +} diff --git a/Chapter10/03_roundrobin/roundrobin.js b/Chapter10/03_roundrobin/roundrobin.js new file mode 100644 index 0000000..1ea2fc7 --- /dev/null +++ b/Chapter10/03_roundrobin/roundrobin.js @@ -0,0 +1,13 @@ +var httpProxy = require('http-proxy'), + fs = require('fs'); + +var servers = JSON.parse(fs.readFileSync('server_list.json')).servers; + +var s = httpProxy.createServer(function (req, res, proxy) { + var target = servers.shift(); // 1. Remove first server + proxy.proxyRequest(req, res, target); // 2. Re-route to that server + servers.push(target); // 3. Add back to end of list +}); + + +s.listen(8080); \ No newline at end of file diff --git a/Chapter10/03_roundrobin/server_list.json b/Chapter10/03_roundrobin/server_list.json new file mode 100644 index 0000000..99de2f2 --- /dev/null +++ b/Chapter10/03_roundrobin/server_list.json @@ -0,0 +1,16 @@ +{ + "servers": [ + { + "host": "localhost", + "port": "8081" + }, + { + "host": "localhost", + "port": "8082" + }, + { + "host": "localhost", + "port": "8083" + } + ] +} diff --git a/Chapter10/03_roundrobin/simple.js b/Chapter10/03_roundrobin/simple.js new file mode 100644 index 0000000..f26857d --- /dev/null +++ b/Chapter10/03_roundrobin/simple.js @@ -0,0 +1,15 @@ + +var http = require('http'); + +console.log(process.argv); + +if (process.argv.length != 3) { + console.log("Need a port number"); + process.exit(-1); +} + +var s = http.createServer(function (req, res) { + res.end("I listened on port " + process.argv[2] + "\n"); +}); + +s.listen(process.argv[2]); diff --git a/Chapter10/03b_roundrobin_sessions/01_memecached_sessions.js b/Chapter10/03b_roundrobin_sessions/01_memecached_sessions.js new file mode 100644 index 0000000..e32d1bd --- /dev/null +++ b/Chapter10/03b_roundrobin_sessions/01_memecached_sessions.js @@ -0,0 +1,18 @@ +var express = require('express'); + +// pass the express object so it can inherit from MemoryStore +var MemcachedStore = require('connect-memcached')(express); +var mcds = new MemcachedStore({ hosts: "localhost:11211" }); + +var app = express() + .use(express.logger('dev')) + .use(express.cookieParser()) + .use(express.session({ secret: "cat on keyboard", + cookie: { maxAge: 1800000 }, + store: mcds})) + .use(function(req, res){ + var x = req.session.last_access; + req.session.last_access = new Date(); + res.end("You last asked for this page at: " + x); + }) + .listen(8080); diff --git a/Chapter10/03b_roundrobin_sessions/Readme.md b/Chapter10/03b_roundrobin_sessions/Readme.md new file mode 100644 index 0000000..4d98bf9 --- /dev/null +++ b/Chapter10/03b_roundrobin_sessions/Readme.md @@ -0,0 +1,7 @@ + +# Running this Sample + + +To run this sample, you need memcached installed. + + diff --git a/Chapter10/03b_roundrobin_sessions/package.json b/Chapter10/03b_roundrobin_sessions/package.json new file mode 100644 index 0000000..9abe672 --- /dev/null +++ b/Chapter10/03b_roundrobin_sessions/package.json @@ -0,0 +1,9 @@ +{ + "name": "Round-Robin-Demo", + "description": "A little proxy server to round-robin requests", + "version": "0.0.1", + "private": true, + "dependencies": { + "http-proxy": "0.8.x" + } +} diff --git a/Chapter10/04a_vhosting_builtin/Readme.md b/Chapter10/04a_vhosting_builtin/Readme.md new file mode 100644 index 0000000..df5d087 --- /dev/null +++ b/Chapter10/04a_vhosting_builtin/Readme.md @@ -0,0 +1,48 @@ + +# Virtual Hosts using express + +To get this sample running, you first need to do a bit of setup. + +## 1. Set up the host names + +### Mac / Unix + +Launch /Applications/Utilities/Terminal.app/ +type: +sudo emacs (or vi) /etc/hosts + +Add the following entries: + +127.0.0.1 app1 +127.0.0.1 app2 +127.0.0.1 app3 + +Save and exit + +### Windows + +notepad c:\windows\system32\drivers\etc\hosts.txt + +Add the following entries: + +127.0.0.1 app1 +127.0.0.1 app2 +127.0.0.1 app3 + +Save and exit. + + +## 2. Run the sample + + node server.js + +## 3. Test it out + +1. You can either use `curl` to download the page content: + + curl http://app1:8080/ + curl http://app2:8080/ + curl http://app3:8080/ + +1. Or you can just view the page in the browser, as _http://app1:8080_, _http://app1:8080_, _http://app1:8080_ . + diff --git a/Chapter10/04a_vhosting_builtin/package.json b/Chapter10/04a_vhosting_builtin/package.json new file mode 100644 index 0000000..8659420 --- /dev/null +++ b/Chapter10/04a_vhosting_builtin/package.json @@ -0,0 +1,10 @@ +{ + "name": "Virtual-Hosts-Demo", + "description": "Demonstrates virtual hosts and expressjs", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x" + } +} diff --git a/Chapter10/04a_vhosting_builtin/vhost_server.js b/Chapter10/04a_vhosting_builtin/vhost_server.js new file mode 100644 index 0000000..5e54568 --- /dev/null +++ b/Chapter10/04a_vhosting_builtin/vhost_server.js @@ -0,0 +1,32 @@ + +var express = require('express'); + +var one = express(); +one.get("/", function(req, res){ + res.send("This is app one!") +}); + + +// App two +var two = express(); +two.get("/", function(req, res){ + res.send("This is app two!") +}); + +// App three +var three = express(); +three.get("/", function(req, res){ + res.send("This is app three!") +}); + + +// controlling app +var master_app = express(); + +master_app.use(express.logger('dev')); +master_app.use(express.vhost('app1', one)) +master_app.use(express.vhost('app2', two)); +master_app.use(express.vhost('app3', three)); + +master_app.listen(8080); +console.log('Listening on 8080 for three different hosts'); diff --git a/Chapter10/04b_vhosting_proxy/app1.js b/Chapter10/04b_vhosting_proxy/app1.js new file mode 100644 index 0000000..dbc3d36 --- /dev/null +++ b/Chapter10/04b_vhosting_proxy/app1.js @@ -0,0 +1,10 @@ + +var express = require('express'); + +var one = express(); +one.use(express.logger('dev')); +one.get("/", function(req, res){ + res.send("This is app one!") +}); + +one.listen(8081); diff --git a/Chapter10/04b_vhosting_proxy/app2.js b/Chapter10/04b_vhosting_proxy/app2.js new file mode 100644 index 0000000..182d959 --- /dev/null +++ b/Chapter10/04b_vhosting_proxy/app2.js @@ -0,0 +1,10 @@ + +var express = require('express'); + +var two = express(); +two.use(express.logger('dev')); +two.get("/", function(req, res){ + res.send("This is app two!") +}); + +two.listen(8082); diff --git a/Chapter10/04b_vhosting_proxy/app3.js b/Chapter10/04b_vhosting_proxy/app3.js new file mode 100644 index 0000000..dc9a609 --- /dev/null +++ b/Chapter10/04b_vhosting_proxy/app3.js @@ -0,0 +1,10 @@ + +var express = require('express'); + +var three = express(); +three.use(express.logger('dev')); +three.get("/", function(req, res){ + res.send("This is app three!") +}); + +three.listen(8083); diff --git a/Chapter10/04b_vhosting_proxy/package.json b/Chapter10/04b_vhosting_proxy/package.json new file mode 100644 index 0000000..7b683d0 --- /dev/null +++ b/Chapter10/04b_vhosting_proxy/package.json @@ -0,0 +1,10 @@ +{ + "name": "Virtual-Hosts-Demo", + "description": "Demonstrates virtual hosts and expressjs", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "http-proxy": "0.8.x" + } +} diff --git a/Chapter10/04b_vhosting_proxy/proxy_vhost_server.js b/Chapter10/04b_vhosting_proxy/proxy_vhost_server.js new file mode 100644 index 0000000..e752816 --- /dev/null +++ b/Chapter10/04b_vhosting_proxy/proxy_vhost_server.js @@ -0,0 +1,14 @@ + +var httpProxy = require('http-proxy'); + +var options = { + hostnameOnly: true, + router: { + 'app1': '127.0.0.1:8081', + 'app2': '127.0.0.1:8082', + 'app3': '127.0.0.1:8083' + } +} + +var proxyServer = httpProxy.createServer(options); +proxyServer.listen(8080); diff --git a/Chapter10/05a_https_builtin/certreq.csr b/Chapter10/05a_https_builtin/certreq.csr new file mode 100644 index 0000000..4b66cb0 --- /dev/null +++ b/Chapter10/05a_https_builtin/certreq.csr @@ -0,0 +1,10 @@ +-----BEGIN CERTIFICATE REQUEST----- +MIIBejCB5AIBADA7MQswCQYDVQQGEwJVUzELMAkGA1UECBMCV0ExEDAOBgNVBAcT +B1NlYXR0bGUxDTALBgNVBAoTBFRlc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJ +AoGBANrhN9YKw0P6Oz5RoYRiyh0if3FosI5A3NqZSdvQSKxzzUMLOxT2UJ8qAXqy +4BOIbwwlu6tv5tayqWurTcNg5n6seNGAZex2TRqeoNpHYI3BGcaaE6C/Q4sMzfSZ +VESdZGr1P557SH06DZlwvjZut/d5PpqYXNoHUwoJUFe60XxbAgMBAAGgADANBgkq +hkiG9w0BAQUFAAOBgQBpsF3SutkgYnxTjw12BqlCcX2JGLOS4vnPICHh3iaujvdZ +9MMNsx+ZoZiqGxGBJghNbYBMJVLy/QMQQdhGKUimgb6Z9JXbbbHxzrwOFO5MWbxo +WK/9VQYRoz/VCbG1W2LJ4w6qR0INuLTN55mdHNpPaQaVEMvs81fNwk0etMvPkg== +-----END CERTIFICATE REQUEST----- diff --git a/Chapter10/05a_https_builtin/https_express_server.js b/Chapter10/05a_https_builtin/https_express_server.js new file mode 100644 index 0000000..8c003f0 --- /dev/null +++ b/Chapter10/05a_https_builtin/https_express_server.js @@ -0,0 +1,22 @@ +var express = require('express'), + https = require('https'), + fs = require('fs'); + +var privateKey = fs.readFileSync('privkey.pem').toString(); +var certificate = fs.readFileSync('newcert.pem').toString(); + +var options = { + key : privateKey, + cert : certificate +} +var app = express(); + +app.get("*", function (req, res) { + res.end("Thanks for calling securely!\n"); +}); + + +// start server +https.createServer(options, app).listen(443, function(){ + console.log("Express server listening on port " + 443); +}); diff --git a/Chapter10/05a_https_builtin/newcert.pem b/Chapter10/05a_https_builtin/newcert.pem new file mode 100644 index 0000000..a60f9e5 --- /dev/null +++ b/Chapter10/05a_https_builtin/newcert.pem @@ -0,0 +1,13 @@ +-----BEGIN CERTIFICATE----- +MIIB7TCCAVYCCQCrAS8mJkbZ+TANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJV +UzELMAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDTALBgNVBAoTBFRlc3Qw +HhcNMTMwMTA1MTQzMjQxWhcNMjMwMTAzMTQzMjQxWjA7MQswCQYDVQQGEwJVUzEL +MAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDTALBgNVBAoTBFRlc3QwgZ8w +DQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANrhN9YKw0P6Oz5RoYRiyh0if3FosI5A +3NqZSdvQSKxzzUMLOxT2UJ8qAXqy4BOIbwwlu6tv5tayqWurTcNg5n6seNGAZex2 +TRqeoNpHYI3BGcaaE6C/Q4sMzfSZVESdZGr1P557SH06DZlwvjZut/d5PpqYXNoH +UwoJUFe60XxbAgMBAAEwDQYJKoZIhvcNAQEFBQADgYEAp03fWV/ZlTxh5ZFnet7f +9BE/VUBRtKFKyTVmjeQDs400NC2MrxXdkWs/hLMjfaWV5HleqaQ/kKUmwqw+Enie +aOh5Lk1C4iOv8sbOScOCIbe7aphzk52lT3QuC2JYspT/BXUz7KlaKDmsW12guGds +8VGcLDStAGjCFgEMHo9vECc= +-----END CERTIFICATE----- diff --git a/Chapter10/05a_https_builtin/package.json b/Chapter10/05a_https_builtin/package.json new file mode 100644 index 0000000..8659420 --- /dev/null +++ b/Chapter10/05a_https_builtin/package.json @@ -0,0 +1,10 @@ +{ + "name": "Virtual-Hosts-Demo", + "description": "Demonstrates virtual hosts and expressjs", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x" + } +} diff --git a/Chapter10/05a_https_builtin/privkey.pem b/Chapter10/05a_https_builtin/privkey.pem new file mode 100644 index 0000000..292f898 --- /dev/null +++ b/Chapter10/05a_https_builtin/privkey.pem @@ -0,0 +1,15 @@ +-----BEGIN RSA PRIVATE KEY----- +MIICXAIBAAKBgQDa4TfWCsND+js+UaGEYsodIn9xaLCOQNzamUnb0Eisc81DCzsU +9lCfKgF6suATiG8MJburb+bWsqlrq03DYOZ+rHjRgGXsdk0anqDaR2CNwRnGmhOg +v0OLDM30mVREnWRq9T+ee0h9Og2ZcL42brf3eT6amFzaB1MKCVBXutF8WwIDAQAB +AoGAcpCVyDwD7s3IOptBnmiS/+Lxr+urFhpPP0Aiz6Jal6FZW/FB8HvowRachZug ++7ha35HUhCxjOBd15DxazJwoqEdImCtSr03u0PYET6U55YOSxI1BQCRjcybpydOc +ZHpdOVeQjQesfOKeQpIMHjgzKFhUlxrGoY5e6BDtHqpdDTECQQDxB89FTuIV1PbK +TkFR6HLrdQh7hLgb+V+EftNVAkyQjPdaPgYFi5rMFqfvIzVG93hiaVnaxh8Ks6uM +6cbxsaijAkEA6Hk6vZR465OxnGLarj8ijDTZs7xXBjxniBAyfP/S+APOSfAARGlg +vQhzL9Y2lHBZJs/DsH5NRk7L2yX2VlUA6QJADDAq6QROJnB4ck52ux+YABQQ874I +WVHI5LhNE3VkTcLzFxsfztP6ZeuXXl5XaVlGOyO8qXVvSGlBeYSwzLQBJQJAWfbg +RpF4oiIL7+tJmXkRU5T4UtgmDWG+5ybtgvY1nIlMgcyBLfhh2YW1neOWR6eauKxa +nKikGvtPZMWyKQLIUQJBAIbQCmsyX944TmmRLJ5g7Ur77Rj6ANTAWYL8v7zEcHJi +oZ2mxF4Asdggu2Kavc8SVitQ8HZAOTtiFjQriG3+GjI= +-----END RSA PRIVATE KEY----- diff --git a/Chapter10/05b_https_proxy/app1.js b/Chapter10/05b_https_proxy/app1.js new file mode 100644 index 0000000..8b18152 --- /dev/null +++ b/Chapter10/05b_https_proxy/app1.js @@ -0,0 +1,10 @@ +var express = require('express'); + +var one = express(); +one.use(express.logger('dev')); +one.get("/", function(req, res){ + console.log(req); + res.send("\nWhat part of 'highly classified' do you not understand?!!\n") +}); + +one.listen(8081); diff --git a/Chapter10/05b_https_proxy/certreq.csr b/Chapter10/05b_https_proxy/certreq.csr new file mode 100644 index 0000000..4b66cb0 --- /dev/null +++ b/Chapter10/05b_https_proxy/certreq.csr @@ -0,0 +1,10 @@ +-----BEGIN CERTIFICATE REQUEST----- +MIIBejCB5AIBADA7MQswCQYDVQQGEwJVUzELMAkGA1UECBMCV0ExEDAOBgNVBAcT +B1NlYXR0bGUxDTALBgNVBAoTBFRlc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJ +AoGBANrhN9YKw0P6Oz5RoYRiyh0if3FosI5A3NqZSdvQSKxzzUMLOxT2UJ8qAXqy +4BOIbwwlu6tv5tayqWurTcNg5n6seNGAZex2TRqeoNpHYI3BGcaaE6C/Q4sMzfSZ +VESdZGr1P557SH06DZlwvjZut/d5PpqYXNoHUwoJUFe60XxbAgMBAAGgADANBgkq +hkiG9w0BAQUFAAOBgQBpsF3SutkgYnxTjw12BqlCcX2JGLOS4vnPICHh3iaujvdZ +9MMNsx+ZoZiqGxGBJghNbYBMJVLy/QMQQdhGKUimgb6Z9JXbbbHxzrwOFO5MWbxo +WK/9VQYRoz/VCbG1W2LJ4w6qR0INuLTN55mdHNpPaQaVEMvs81fNwk0etMvPkg== +-----END CERTIFICATE REQUEST----- diff --git a/Chapter10/05b_https_proxy/https_proxy_server.js b/Chapter10/05b_https_proxy/https_proxy_server.js new file mode 100644 index 0000000..a750cf6 --- /dev/null +++ b/Chapter10/05b_https_proxy/https_proxy_server.js @@ -0,0 +1,34 @@ +var fs = require('fs'), + http = require('http'), + https = require('https'), + httpProxy = require('http-proxy'); + + +var options = { + https: { + key: fs.readFileSync('privkey.pem', 'utf8'), + cert: fs.readFileSync('newcert.pem', 'utf8') + } +}; + + +// +// Create a standalone HTTPS proxy server +// +//httpProxy.createServer(8000, 'localhost', options).listen(8001); + + +// +// Create an instance of HttpProxy to use with another HTTPS server +// +var proxy = new httpProxy.HttpProxy({ + target: { + host: 'localhost', + port: 8081 + } +}); + +https.createServer(options.https, function (req, res) { + proxy.proxyRequest(req, res) +}).listen(443); + diff --git a/Chapter10/05b_https_proxy/newcert.pem b/Chapter10/05b_https_proxy/newcert.pem new file mode 100644 index 0000000..a60f9e5 --- /dev/null +++ b/Chapter10/05b_https_proxy/newcert.pem @@ -0,0 +1,13 @@ +-----BEGIN CERTIFICATE----- +MIIB7TCCAVYCCQCrAS8mJkbZ+TANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJV +UzELMAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDTALBgNVBAoTBFRlc3Qw +HhcNMTMwMTA1MTQzMjQxWhcNMjMwMTAzMTQzMjQxWjA7MQswCQYDVQQGEwJVUzEL +MAkGA1UECBMCV0ExEDAOBgNVBAcTB1NlYXR0bGUxDTALBgNVBAoTBFRlc3QwgZ8w +DQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANrhN9YKw0P6Oz5RoYRiyh0if3FosI5A +3NqZSdvQSKxzzUMLOxT2UJ8qAXqy4BOIbwwlu6tv5tayqWurTcNg5n6seNGAZex2 +TRqeoNpHYI3BGcaaE6C/Q4sMzfSZVESdZGr1P557SH06DZlwvjZut/d5PpqYXNoH +UwoJUFe60XxbAgMBAAEwDQYJKoZIhvcNAQEFBQADgYEAp03fWV/ZlTxh5ZFnet7f +9BE/VUBRtKFKyTVmjeQDs400NC2MrxXdkWs/hLMjfaWV5HleqaQ/kKUmwqw+Enie +aOh5Lk1C4iOv8sbOScOCIbe7aphzk52lT3QuC2JYspT/BXUz7KlaKDmsW12guGds +8VGcLDStAGjCFgEMHo9vECc= +-----END CERTIFICATE----- diff --git a/Chapter10/05b_https_proxy/package.json b/Chapter10/05b_https_proxy/package.json new file mode 100644 index 0000000..770aae2 --- /dev/null +++ b/Chapter10/05b_https_proxy/package.json @@ -0,0 +1,11 @@ +{ + "name": "Virtual-Hosts-Demo", + "description": "Demonstrates virtual hosts and expressjs", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "http-proxy": "0.8.x", + "async": "0.1.x" + } +} diff --git a/Chapter10/05b_https_proxy/privkey.pem b/Chapter10/05b_https_proxy/privkey.pem new file mode 100644 index 0000000..292f898 --- /dev/null +++ b/Chapter10/05b_https_proxy/privkey.pem @@ -0,0 +1,15 @@ +-----BEGIN RSA PRIVATE KEY----- +MIICXAIBAAKBgQDa4TfWCsND+js+UaGEYsodIn9xaLCOQNzamUnb0Eisc81DCzsU +9lCfKgF6suATiG8MJburb+bWsqlrq03DYOZ+rHjRgGXsdk0anqDaR2CNwRnGmhOg +v0OLDM30mVREnWRq9T+ee0h9Og2ZcL42brf3eT6amFzaB1MKCVBXutF8WwIDAQAB +AoGAcpCVyDwD7s3IOptBnmiS/+Lxr+urFhpPP0Aiz6Jal6FZW/FB8HvowRachZug ++7ha35HUhCxjOBd15DxazJwoqEdImCtSr03u0PYET6U55YOSxI1BQCRjcybpydOc +ZHpdOVeQjQesfOKeQpIMHjgzKFhUlxrGoY5e6BDtHqpdDTECQQDxB89FTuIV1PbK +TkFR6HLrdQh7hLgb+V+EftNVAkyQjPdaPgYFi5rMFqfvIzVG93hiaVnaxh8Ks6uM +6cbxsaijAkEA6Hk6vZR465OxnGLarj8ijDTZs7xXBjxniBAyfP/S+APOSfAARGlg +vQhzL9Y2lHBZJs/DsH5NRk7L2yX2VlUA6QJADDAq6QROJnB4ck52ux+YABQQ874I +WVHI5LhNE3VkTcLzFxsfztP6ZeuXXl5XaVlGOyO8qXVvSGlBeYSwzLQBJQJAWfbg +RpF4oiIL7+tJmXkRU5T4UtgmDWG+5ybtgvY1nIlMgcyBLfhh2YW1neOWR6eauKxa +nKikGvtPZMWyKQLIUQJBAIbQCmsyX944TmmRLJ5g7Ur77Rj6ANTAWYL8v7zEcHJi +oZ2mxF4Asdggu2Kavc8SVitQ8HZAOTtiFjQriG3+GjI= +-----END RSA PRIVATE KEY----- diff --git a/Chapter10/06_path/path.js b/Chapter10/06_path/path.js new file mode 100644 index 0000000..b92108e --- /dev/null +++ b/Chapter10/06_path/path.js @@ -0,0 +1,4 @@ +var path = require('path'); + +var comps = [ '..', 'static', 'photos' ]; +console.log(comps.join(path.sep)); diff --git a/Chapter11/01_running/arguments.js b/Chapter11/01_running/arguments.js new file mode 100755 index 0000000..c62f484 --- /dev/null +++ b/Chapter11/01_running/arguments.js @@ -0,0 +1,12 @@ +#!/usr/local/bin/node + + +console.log("argv[0] is always the interpreter: " + process.argv[0]); +console.log("argv[0] is always the running script: " + process.argv[1]); +console.log("The rest are additional arguments you gave on the command line."); + +for (var i = 2; i < process.argv.length; i++) { + console.log("program parameter " + (i - 2) + " : " + + process.argv[i]); +} + diff --git a/Chapter11/01_running/env.js b/Chapter11/01_running/env.js new file mode 100644 index 0000000..348e09d --- /dev/null +++ b/Chapter11/01_running/env.js @@ -0,0 +1,4 @@ +#!/usr/local/bin/node + +console.log("process environment:"); +console.log(process.env); diff --git a/Chapter11/01_running/params.js b/Chapter11/01_running/params.js new file mode 100755 index 0000000..2aa1f91 --- /dev/null +++ b/Chapter11/01_running/params.js @@ -0,0 +1,3 @@ +#!/usr/local/bin/node + +console.log(process.argv); diff --git a/Chapter11/01_running/unix.js b/Chapter11/01_running/unix.js new file mode 100755 index 0000000..844b85b --- /dev/null +++ b/Chapter11/01_running/unix.js @@ -0,0 +1,6 @@ +#!/usr/local/bin/node + +console.log("Very sweet -- you can run node as a #!'d executable on Unix"); +console.log("You ran me with the following parameters:"); +console.log(process.argv); + diff --git a/Chapter11/01_running/windows.bat b/Chapter11/01_running/windows.bat new file mode 100755 index 0000000..b0c299a --- /dev/null +++ b/Chapter11/01_running/windows.bat @@ -0,0 +1,2 @@ + +node test.js %1 %2 %3 %4 %5 %6 %7 %8 %9 \ No newline at end of file diff --git a/Chapter11/01_running/windows.js b/Chapter11/01_running/windows.js new file mode 100755 index 0000000..8817e8c --- /dev/null +++ b/Chapter11/01_running/windows.js @@ -0,0 +1,3 @@ + +console.log(process.argv); + diff --git a/Chapter11/02_fs_sync/file_copy.js b/Chapter11/02_fs_sync/file_copy.js new file mode 100755 index 0000000..f8091fe --- /dev/null +++ b/Chapter11/02_fs_sync/file_copy.js @@ -0,0 +1,39 @@ +#!/usr/local/bin/node +var fs = require('fs'), + path = require('path'); + +var BUFFER_SIZE = 1000000; + +function copy_file_sync (src, dest) { + var read_so_far, fdsrc, fddest, read; + var buff = new Buffer(BUFFER_SIZE); + + fdsrc = fs.openSync(src, 'r'); + fddest = fs.openSync(dest, 'w'); + read_so_far = 0; + + do { + read = fs.readSync(fdsrc, buff, 0, BUFFER_SIZE, read_so_far); + fs.writeSync(fddest, buff, 0, read); + read_so_far += read; + } while (read > 0); + + fs.closeSync(fdsrc); + return fs.closeSync(fddest); +} + + +if (process.argv.length != 4) { + console.log("Usage: " + path.basename(process.argv[1], '.js') + + " [src_file] [dest_file]"); +} else { + try { + copy_file_sync(process.argv[2], process.argv[3]); + } catch (e) { + console.log("Error copying file:"); + console.log(e); + process.exit(-1); + } + + console.log("1 file copied."); +} diff --git a/Chapter11/02_fs_sync/file_move.js b/Chapter11/02_fs_sync/file_move.js new file mode 100755 index 0000000..a6e9ff2 --- /dev/null +++ b/Chapter11/02_fs_sync/file_move.js @@ -0,0 +1,40 @@ +#!/usr/local/bin/node +var fs = require('fs'), + path = require('path'); + +var BUFFER_SIZE = 1000000; + +function move_file_sync (src, dest) { + var read_so_far, fdsrc, fddest, read; + var buff = new Buffer(BUFFER_SIZE); + + fdsrc = fs.openSync(src, 'r'); + fddest = fs.openSync(dest, 'w'); + read_so_far = 0; + + do { + read = fs.readSync(fdsrc, buff, 0, BUFFER_SIZE, read_so_far); + fs.writeSync(fddest, buff, 0, read); + read_so_far += read; + } while (read > 0); + + fs.closeSync(fdsrc); + fs.closeSync(fddest); + return fs.unlinkSync(src); +} + + +if (process.argv.length != 4) { + console.log("Usage: " + path.basename(process.argv[1], '.js') + + " [src_file] [dest_file]"); +} else { + try { + move_file_sync(process.argv[2], process.argv[3]); + } catch (e) { + console.log("Error moving file:"); + console.log(e); + process.exit(-1); + } + + console.log("1 file moved."); +} diff --git a/Chapter11/02_fs_sync/mkdirs.js b/Chapter11/02_fs_sync/mkdirs.js new file mode 100755 index 0000000..3438d81 --- /dev/null +++ b/Chapter11/02_fs_sync/mkdirs.js @@ -0,0 +1,45 @@ +#!/usr/local/bin/node +var fs = require('fs'), + path = require('path'); + +function mkdirs (path_to_create, mode) { + if (mode == undefined) + mode = 0777 & (~process.umask()); + + var parts = path_to_create.split(path.sep); + var i; + for (i = 0; i < parts.length; i++) { + var search; + search = parts.slice(0, i + 1).join(path.sep); + if (fs.existsSync(search)) { + var st; + if ((st = fs.statSync(search))){ + if (!st.isDirectory()) { + throw new Error("Intermediate exists, is not a dir!"); + } + } + } else { + // doesn't exist. We can start creating now + break; + } + } + + for (var j = i; j < parts.length; j++) { + var build = parts.slice(0, j + 1).join(path.sep); + fs.mkdirSync(build); + } +} + +if (process.argv.length != 3) { + console.log("Usage: " + path.basename(process.argv[1], '.js') + + " path_to_create"); +} else { + try { + mkdirs(process.argv[2]); + } catch (e) { + console.log("Error creating folder:"); + console.log(e); + process.exit(-1); + } + console.log("done"); +} diff --git a/Chapter11/02_fs_sync/read_dir.js b/Chapter11/02_fs_sync/read_dir.js new file mode 100755 index 0000000..58c0515 --- /dev/null +++ b/Chapter11/02_fs_sync/read_dir.js @@ -0,0 +1,7 @@ +#!/usr/local/bin/node + +var fs = require('fs'); + +var files = fs.readdirSync("."); +console.log(files); + diff --git a/Chapter11/03_stdinout/01_simple_hasher.js b/Chapter11/03_stdinout/01_simple_hasher.js new file mode 100644 index 0000000..efd9f3b --- /dev/null +++ b/Chapter11/03_stdinout/01_simple_hasher.js @@ -0,0 +1,18 @@ +process.stdout.write("Hash-o-tron 3000\n"); +process.stdout.write("(Ctrl+D or Empty line quits)\n"); +process.stdout.write("data to hash > "); + +process.stdin.on('readable', function () { + var data = process.stdin.read(); + if (data == null) return; + if (data == "\n") process.exit(0); + + var hash = require('crypto').createHash('md5'); + hash.update(data); + process.stdout.write("Hashed to: " + hash.digest('hex') + "\n"); + process.stdout.write("data to hash > "); +}); + + +process.stdin.setEncoding('utf8'); +process.stdin.resume(); diff --git a/Chapter11/03_stdinout/02_raw_mode.js b/Chapter11/03_stdinout/02_raw_mode.js new file mode 100644 index 0000000..bdf8e24 --- /dev/null +++ b/Chapter11/03_stdinout/02_raw_mode.js @@ -0,0 +1,46 @@ +process.stdout.write("Hash-o-tron 3000\n"); +process.stdout.write("(Ctrl+D or Empty line quits)\n"); +process.stdout.write("data to hash > "); + +var last_read; + +process.stdin.on('readable', function () { + data = process.stdin.read(); + if (!data) return; + if (!process.stdin.isRaw) { + last_read = data; + if (data == "\n") process.exit(0); + process.stdout.write("Please select type of hash:\n"); + process.stdout.write("(1 – md5, 2 – sha1, 3 – sha256, 4 – sha512)\n"); + process.stdout.write("[1-4] > "); + process.stdin.setRawMode(true); + } else { + var alg; + if (data != '') { + var c = parseInt(data); + switch (c) { + case 1: alg = 'md5'; break; + case 2: alg = 'sha1'; break; + case 3: alg = 'sha256'; break; + case 4: alg = 'sha512'; break; + } + if (alg) { + var hash = require('crypto').createHash(alg); + hash.update(last_read); + process.stdout.write("\nHashed to: " + hash.digest('hex')); + process.stdout.write("\ndata to hash > "); + process.stdin.setRawMode(false); + } else { + process.stdout.write("\nPlease select type of hash:\n"); + process.stdout.write("[1-4] > "); + } + } else { + process.stdout.write("\ndata to hash > "); + process.stdin.setRawMode(false); + } + } +}); + +process.stdin.setEncoding('utf8') +process.stdin.resume() + diff --git a/Chapter11/03_stdinout/03_readline.js b/Chapter11/03_stdinout/03_readline.js new file mode 100644 index 0000000..fe168fe --- /dev/null +++ b/Chapter11/03_stdinout/03_readline.js @@ -0,0 +1,66 @@ +var readline = require('readline'); + +var rl = readline.createInterface({ + input: process.stdin, + output: process.stdout +}); + +var p = "rpn expression > " +rl.setPrompt(p, p.length); +rl.prompt(); + +rl.on("line", function (line) { + if (line == "\n") { + rl.close(); + return; + } + + var parts = line.trim().split(new RegExp("[ ]+")); + var r = rpn_compute(parts); + if (r !== false) { + process.stdout.write("Result: " + r + "\n"); + } else { + process.stdout.write("Invalid expression.\n"); + } + rl.prompt(); +}); + +rl.on("SIGINT", function () { + process.stdout.write("\n"); + rl.close(); +}); + + +// push numbers onto a stack, pop when we see an operator. +function rpn_compute(parts) { + var stack = []; + for (var i = 0; i < parts.length; i++) { + switch (parts[i]) { + case '+': case '-': case '*': case '/': + if (stack.length < 2) return false; + do_op(stack, parts[i]); + break; + default: + var num = parseFloat(parts[i]); + if (isNaN(num)) return false; + stack.push(num); + break; + } + } + if (stack.length != 1) return false; + return stack.pop(); +} + + +function do_op(stack, operator) { + var b = stack.pop(); + var a = stack.pop(); + switch (operator) { + case '+': stack.push(a + b); break; + case '-': stack.push(a - b); break; + case '*': stack.push(a * b); break; + case '/': stack.push(a / b); break; + default: throw new Error("Unexpected operator"); + } +} + diff --git a/Chapter11/03_stdinout/04_questions.js b/Chapter11/03_stdinout/04_questions.js new file mode 100644 index 0000000..cf4382b --- /dev/null +++ b/Chapter11/03_stdinout/04_questions.js @@ -0,0 +1,37 @@ +var readline = require('readline'), + async = require("async"), + fs = require('fs'); + +var questions = [ "What's your favourite colour? ", + "What's your shoe size? ", + "Cats or dogs? ", + "Doctor Who or Doctor House? " ]; + +var rl = readline.createInterface({ // 1. + input: process.stdin, + output: process.stdout +}); + +var output = []; +async.forEachSeries( + questions, + function (item, cb) { // 2. + rl.question(item, function (answer) { + output.push(answer); + cb(null); + }); + }, + function (err) { // 3. + if (err) { + console.log("Hunh, couldn't get answers"); + console.log(err); + return; + } + fs.appendFileSync("answers.txt", JSON.stringify(output) + "\n"); + console.log("\nThanks for your answers!"); + console.log("We'll sell them to some telemarketer immediately!"); + rl.close(); + } +); + + diff --git a/Chapter11/03_stdinout/package.json b/Chapter11/03_stdinout/package.json new file mode 100644 index 0000000..ed249e2 --- /dev/null +++ b/Chapter11/03_stdinout/package.json @@ -0,0 +1,9 @@ +{ + "name": "Readline-questions-demo", + "description": "Demonstrates questions in readline", + "version": "0.0.1", + "private": true, + "dependencies": { + "async": "0.1.x" + } +} diff --git a/Chapter11/04_create_processes/01_simple_exec.js b/Chapter11/04_create_processes/01_simple_exec.js new file mode 100644 index 0000000..4e5c79e --- /dev/null +++ b/Chapter11/04_create_processes/01_simple_exec.js @@ -0,0 +1,20 @@ +var exec = require('child_process').exec, + child; + +if (process.argv.length != 3) { + console.log("I need a file name"); + process.exit(-1); +} + +var file_name = process.argv[2]; +var cmd = process.platform == 'win32' ? 'type' : "cat"; +child = exec(cmd + " " + file_name, function (error, stdout, stderr) { + console.log('stdout: ' + stdout); + console.log('stderr: ' + stderr); + + if (error) { + console.log("Error exec'ing the file"); + console.log(error); + process.exit(1); + } +}); diff --git a/Chapter11/04_create_processes/02_spawn.js b/Chapter11/04_create_processes/02_spawn.js new file mode 100644 index 0000000..a788071 --- /dev/null +++ b/Chapter11/04_create_processes/02_spawn.js @@ -0,0 +1,23 @@ + +var spawn = require("child_process").spawn; +var node; + +if (process.argv.length != 3) { + console.log("I need a script to run"); + process.exit(-1); +} + +var node = spawn("node", [ process.argv[2] ]); +node.stdout.on('data', print_stdout); +node.stderr.on('data', print_stderr); +node.on('exit', exited); + +function print_stdout(data) { + console.log("stdout: " + data.toString('utf8')); +} +function print_stderr(data) { + console.log("stderr: " + data.toString('utf8')); +} +function exited(code) { + console.error("--> Node exited with code: " + code); +} diff --git a/Chapter11/04_create_processes/03_node_runner.js b/Chapter11/04_create_processes/03_node_runner.js new file mode 100644 index 0000000..2a80735 --- /dev/null +++ b/Chapter11/04_create_processes/03_node_runner.js @@ -0,0 +1,28 @@ + +var spawn = require("child_process").spawn; +var node; + +if (process.argv.length < 3) { + console.log("I need a script to run"); + process.exit(-1); +} + +function spawn_node() { + var node = spawn("node", process.argv.slice(2)); + node.stdout.on('data', print_stdout); + node.stderr.on('data', print_stderr); + node.on('exit', exited); +} + +function print_stdout(data) { + console.log(data.toString('utf8')); +} +function print_stderr(data) { + console.log("stderr: " + data.toString('utf8')); +} +function exited(code) { + console.error("--> Node exited with code: " + code + ". Restarting"); + spawn_node(); +} + +spawn_node(); diff --git a/Chapter11/04_create_processes/hello.js b/Chapter11/04_create_processes/hello.js new file mode 100644 index 0000000..c36e70f --- /dev/null +++ b/Chapter11/04_create_processes/hello.js @@ -0,0 +1,2 @@ + +console.log("hello world"); diff --git a/Chapter11/04_create_processes/simulate_crash.js b/Chapter11/04_create_processes/simulate_crash.js new file mode 100644 index 0000000..c7c9695 --- /dev/null +++ b/Chapter11/04_create_processes/simulate_crash.js @@ -0,0 +1,8 @@ + +console.log("Starting Server woo!"); + +setTimeout(function () { + console.error("OH noes, I'm dying!"); +}, 5000); + + diff --git a/Chapter12/01_functional_tests/01_functional.js b/Chapter12/01_functional_tests/01_functional.js new file mode 100644 index 0000000..aa6c35f --- /dev/null +++ b/Chapter12/01_functional_tests/01_functional.js @@ -0,0 +1,55 @@ +var rpn = require('./rpn.js'); + + +exports.addition = function (test) { + test.expect(4); + test.equals(rpn.compute(prep("1 2 +")), 3); + test.equals(rpn.compute(prep("1 2 3 + +")), 6); + test.equals(rpn.compute(prep("1 2 + 5 6 + +")), 14); + test.equals(rpn.compute(prep("1 2 3 4 5 6 7 + + + + + +")), 28); + test.done(); +}; + +exports.subtraction = function (test) { + test.expect(4); + test.equals(rpn.compute(prep("7 2 -")), 5); + test.equals(rpn.compute(prep("7 2 5 - -")), 10); + test.equals(rpn.compute(prep("7 2 - 10 2 - -")), -3); + test.equals(rpn.compute(prep("100 50 20 15 5 5 - - - - -")), 55); + test.done(); +}; + +exports.multiplication = function (test) { + test.expect(3); + test.equals(rpn.compute(prep("4 5 *")), 20); + test.equals(rpn.compute(prep("4 5 8 * *")), 160); + test.equals(rpn.compute(prep("4 5 * 2 3 * *")), 120); + test.done(); +}; + +exports.division = function (test) { + test.expect(3) + test.equals(rpn.compute(prep("39 13 /")), 3); + test.equals(rpn.compute(prep("9 39 13 / /")), 3); + test.equals(rpn.compute(prep("18 27 39 13 / / /")), 2); + test.done(); +}; + +exports.decimals = function (test) { + test.expect(2); + test.equals(rpn.compute(prep("3.14159 5 *")), 15.70795); + test.equals(rpn.compute(prep("100 3 /")), 33.333333333333336); + test.done(); +}; + +exports.empty = function (test) { + test.expect(1); + test.throws(rpn.compute([])); + test.done(); +}; + + +function prep(str) { + return str.trim().split(/[ ]+/); +} + diff --git a/Chapter12/01_functional_tests/02_async.js b/Chapter12/01_functional_tests/02_async.js new file mode 100644 index 0000000..75092e9 --- /dev/null +++ b/Chapter12/01_functional_tests/02_async.js @@ -0,0 +1,18 @@ + + +exports.async1 = function (test) { + setTimeout(function () { + test.equal(true, true); + test.done(); + }, 2000); +}; + + +exports.async2 = function (test) { + setTimeout(function () { + test.equal(true, true); + test.done(); + }, 1400); +}; + + diff --git a/Chapter12/01_functional_tests/03_group.js b/Chapter12/01_functional_tests/03_group.js new file mode 100644 index 0000000..6066fff --- /dev/null +++ b/Chapter12/01_functional_tests/03_group.js @@ -0,0 +1,18 @@ + + +exports.group1 = { + setUp: function (callback) { + // do something + callback(); + }, + tearDown: function (callback) { + // do something + callback(); + }, + test1: function (test) { + test.done(); + }, + test2: function (test) { + test.done(); + } +}; diff --git a/Chapter12/01_functional_tests/package.json b/Chapter12/01_functional_tests/package.json new file mode 100644 index 0000000..b7d84d2 --- /dev/null +++ b/Chapter12/01_functional_tests/package.json @@ -0,0 +1,9 @@ +{ + "name": "Functional-testing-demo", + "description": "Some simple functional tests", + "version": "0.0.1", + "private": true, + "dependencies": { + "nodeunit": "0.7.x" + } +} diff --git a/Chapter12/01_functional_tests/rpn.js b/Chapter12/01_functional_tests/rpn.js new file mode 100644 index 0000000..569b6f6 --- /dev/null +++ b/Chapter12/01_functional_tests/rpn.js @@ -0,0 +1,35 @@ + +exports.version = "1.0.0"; + +// push numbers onto a stack, pop when we see an operator. +exports.compute = function (parts) { + var stack = []; + for (var i = 0; i < parts.length; i++) { + switch (parts[i]) { + case '+': case '-': case '*': case '/': + if (stack.length < 2) return false; + do_op(stack, parts[i]); + break; + default: + var num = parseFloat(parts[i]); + if (isNaN(num)) return false; + stack.push(num); + break; + } + } + if (stack.length != 1) return false; + return stack.pop(); +} + + +function do_op(stack, operator) { + var b = stack.pop(); + var a = stack.pop(); + switch (operator) { + case '+': stack.push(a + b); break; + case '-': stack.push(a - b); break; + case '*': stack.push(a * b); break; + case '/': stack.push(a / b); break; + default: throw new Error("Unexpected operator"); + } +} diff --git a/Chapter12/02_api_testing/app/basic.html b/Chapter12/02_api_testing/app/basic.html new file mode 100644 index 0000000..0d966da --- /dev/null +++ b/Chapter12/02_api_testing/app/basic.html @@ -0,0 +1,25 @@ + + + + Photo Album + + + + + + + + + + + + + + + + + diff --git a/Chapter12/02_api_testing/app/data/album.js b/Chapter12/02_api_testing/app/data/album.js new file mode 100644 index 0000000..22fe780 --- /dev/null +++ b/Chapter12/02_api_testing/app/data/album.js @@ -0,0 +1,237 @@ + +var fs = require('fs'), + local = require('../local.config.js'), + db = require('./db.js'), + path = require("path"), + async = require('async'), + backhelp = require("./backend_helpers.js"); + +exports.version = "0.1.0"; + + +exports.create_album = function (data, callback) { + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data. + function (cb) { + try { + backhelp.verify(data, + [ "name", + "title", + "date", + "description" ]); + if (!backhelp.valid_filename(data.name)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Albums VALUES (?, ?, ?, ?)", + [ data.name, data.title, data.date, data.description ], + backhelp.mscb(cb)); + }, + + // make sure the folder exists. + function (results, cb) { + write_succeeded = true; + fs.mkdir(local.config.static_content + + "albums/" + data.name, cb); + } + ], + function (err, results) { + // convert file errors to something we like. + if (err) { + if (write_succeeded) delete_album(dbc, data.name); + if (err instanceof Error && err.code == 'ER_EXISTS') + callback(backhelp.album_already_exists()); + else if (err instanceof Error && err.errno != undefined) + callback(backhelp.file_error(err)); + else + callback(err); + } else { + callback(err, err ? null : data); + } + + if (dbc) dbc.end(); + }); +}; + + +exports.album_by_name = function (name, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums WHERE name = ?", + [ name ], + backhelp.mscb(cb)); + } + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else if (!results || results.length == 0) { + callback(backhelp.no_such_album()); + } else { + callback(null, results[0]); + } + }); +}; + + +exports.photos_for_album = function (album_name, skip, limit, callback) { + var dbc; + + async.waterfall([ + function (cb) { + if (!album_name) + cb(backhelp.missing_data("album name")); + else + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Photos WHERE album_name = ? LIMIT ?, ?", + [ album_name, skip, limit ], + backhelp.mscb(cb)); + }, + + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.all_albums = function (sort_by, desc, skip, count, callback) { + var dbc; + async.waterfall([ + function (cb) { + db.db(cb); + }, + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Albums ORDER BY ? " + + (desc ? "DESC" : "ASC") + + " LIMIT ?, ?", + [ sort_by, skip, count ], + backhelp.mscb(cb)); + } + ], + function (err, results) { + if (dbc) dbc.end(); + if (err) { + callback (err); + } else { + callback(null, results); + } + }); +}; + + +exports.add_photo = function (photo_data, path_to_photo, callback) { + var base_fn = path.basename(path_to_photo).toLowerCase(); + var write_succeeded = false; + var dbc; + + async.waterfall([ + // validate data + function (cb) { + try { + backhelp.verify(photo_data, + [ "albumid", "description", "date" ]); + photo_data.filename = base_fn; + if (!backhelp.valid_filename(photo_data.albumid)) + throw invalid_album_name(); + } catch (e) { + cb(e); + return; + } + db.db(cb); + }, + + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "INSERT INTO Photos VALUES (?, ?, ?, ?)", + [ photo_data.albumid, base_fn, photo_data.description, + photo_data.date ], + backhelp.mscb(cb)); + }, + + // now copy the temp file to static content + function (results, cb) { + write_succeeded = true; + var save_path = local.config.static_content + "albums/" + + photo_data.albumid + "/" + base_fn; + backhelp.file_copy(path_to_photo, save_path, true, cb); + }, + + ], + function (err, results) { + if (err && write_succeeded) + delete_photo(dbc, photo_data.albumid, base_fn); + if (err) { + callback (err); + } else { + // clone the object + var pd = JSON.parse(JSON.stringify(photo_data)); + pd.filename = base_fn; + callback(null, pd); + } + if (dbc) dbc.end(); + }); +}; + + +function invalid_album_name() { + return backhelp.error("invalid_album_name", + "Album names can have letters, #s, _ and, -"); +} +function invalid_filename() { + return backhelp.error("invalid_filename", + "Filenames can have letters, #s, _ and, -"); +} + + +function delete_album(dbc, name) { + dbc.query( + "DELETE FROM Albums WHERE name = ?", + [ name ], + function (err, results) {}); +} + +function delete_photo(dbc, albumid, fn) { + dbc.query( + "DELETE FROM Photos WHERE albumid = ? AND filename = ?", + [ albumid, fn ], + function (err, results) { }); +} + diff --git a/Chapter12/02_api_testing/app/data/backend_helpers.js b/Chapter12/02_api_testing/app/data/backend_helpers.js new file mode 100644 index 0000000..d2eb70b --- /dev/null +++ b/Chapter12/02_api_testing/app/data/backend_helpers.js @@ -0,0 +1,118 @@ + +var fs = require('fs'); + + +exports.verify = function (data, field_names) { + for (var i = 0; i < field_names.length; i++) { + if (!data[field_names[i]]) { + throw exports.error("missing_data", + field_names[i] + " not optional"); + } + } + + return true; +} + +exports.error = function (code, message) { + var e = new Error(code); + e.description = message; + return e; +}; + +exports.file_error = function (err) { + err.description = err.message; + err.message = "file_error"; + return err; +} + + +/** + * Possible signatures: + * src, dst, callback + * src, dst, can_overwrite, callback + */ +exports.file_copy = function () { + + var src, dst, callback; + var can_overwrite = false; + + if (arguments.length == 3) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[2]; + } else if (arguments.length == 4) { + src = arguments[0]; + dst = arguments[1]; + callback = arguments[3]; + can_overwrite = arguments[2] + } + + function copy(err) { + var is, os; + + if (!err && !can_overwrite) { + return callback(backhelp.error("file_exists", + "File " + dst + " exists.")); + } + + fs.stat(src, function (err) { + if (err) { + return callback(err); + } + + is = fs.createReadStream(src); + os = fs.createWriteStream(dst); + is.on('end', function () { callback(null); }); + is.on('error', function (e) { callback(e); }); + is.pipe(os); + }); + } + + fs.stat(dst, copy); +}; + + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.db_error = function () { + return exports.error("server_error", + "Something horrible has happened with our database!"); +}; + +exports.album_already_exists = function () { + return exports.error("album_already_exists", + "An album with this name already exists."); +}; + +exports.missing_data = function (field) { + return exports.error("missing_data", "You must provide: " + field); +}; + +exports.no_such_user = function () { + return exports.error("no_such_user", + "The specified user does not exist"); +}; + + +exports.user_already_registered = function () { + return exprots.error("user_already_registered", + "This user appears to exist already!"); +}; + + + +/** + * node-mysql sometimes adds extra data to callbacks to be helpful. + * this can mess up our waterfall, however, so we'll strip those + * out. + */ +exports.mscb = function (cb) { + return function (err, results) { + cb(err, results); + } +} diff --git a/Chapter12/02_api_testing/app/data/db.js b/Chapter12/02_api_testing/app/data/db.js new file mode 100644 index 0000000..8bab0f1 --- /dev/null +++ b/Chapter12/02_api_testing/app/data/db.js @@ -0,0 +1,62 @@ +var mysql = require('mysql'), + pool = require('generic-pool'), + async = require('async'), + local = require("../local.config.js"); + + +var mysql_pool; + + +/** + * Currently for initialisation, we + * the database. We won't even attempt to start up + * if this fails, as it's pretty pointless. + */ +exports.init = function (callback) { + + conn_props = local.config.db_config; + + mysql_pool = pool.Pool({ + name : 'mysql', + create : function (callback) { + var c = mysql.createConnection({ + host: conn_props.host, + user: conn_props.user, + password: conn_props.password, + database: conn_props.database + }); + callback(null, c); + }, + destroy : function(client) { client.end(); }, + max : conn_props.pooled_connections, + idleTimeoutMillis : conn_props.idle_timeout_millis, + log : false + }); + + // run a test query to make sure it's working. + exports.run_mysql_query("SELECT 1", [], function (err, results) { + if (err != null) { + callback(err); + console.error("Unable to connect to database server. Aborting."); + } else { + console.log("Database initialised and connected."); + callback(null); + } + }); + +}; + + +exports.run_mysql_query = function (query, values, callback) { + mysql_pool.acquire(function(err, mysqlconn) { + mysqlconn.query(query, values, function (mysqlerr, mysqlresults) { + mysql_pool.release(mysqlconn); + callback(mysqlerr, mysqlresults); + }); + }); +}; + + +exports.db = function (callback) { + mysql_pool.acquire(callback); +}; diff --git a/Chapter12/02_api_testing/app/data/user.js b/Chapter12/02_api_testing/app/data/user.js new file mode 100644 index 0000000..cb724cb --- /dev/null +++ b/Chapter12/02_api_testing/app/data/user.js @@ -0,0 +1,120 @@ + +var async = require('async'), + bcrypt = require('bcrypt'), + db = require("./db.js"), + uuid = require('node-uuid'), + backhelp = require("./backend_helpers.js"); + + +exports.version = "0.1.0"; + +exports.user_by_uuid = function (uuid, callback) { + if (!uuid) + cb(backend.missing_data("uuid")); + else + user_by_field("user_uuid", uuid, callback); +}; + +exports.user_by_email = function (email, callback) { + if (!email) + cb(backend.missing_data("email")); + else + user_by_field("email_address", email, callback); +}; + + + + +exports.register = function (email, display_name, password, callback) { + var dbc; + var userid; + async.waterfall([ + // validate ze params + function (cb) { + if (!email || email.indexOf("@") == -1) + cb(backend.missing_data("email")); + else if (!display_name) + cb(backend.missing_data("display_name")); + else if (!password) + cb(backend.missing_data("password")); + else + cb(null); + }, + + // get a connection + function (cb) { + db.db(cb); + }, + + // generate a password hash + function (dbclient, cb) { + dbc = dbclient; + bcrypt.hash(password, 10, cb); + }, + + // register the account. + function (hash, cb) { + userid = uuid(); + var now = Math.round((new Date()).getTime() / 1000); + dbc.query( + "INSERT INTO Users VALUES (?, ?, ?, ?, ?, NULL, 0)", + [ userid, email, display_name, hash, now ], + backhelp.mscb(cb)); + }, + + // fetch and return the new user. + function (results, cb) { + exports.user_by_uuid(userid, cb); + } + ], + function (err, user_data) { + if (err) { + if (err.code + && (err.code == 'ER_DUP_KEYNAME' + || err.code == 'ER_EXISTS' + || err.code == 'ER_DUP_ENTRY')) + callback(backhelp.user_already_registered()); + else + callback (err); + } else { + callback(null, user_data); + } + }); +}; + + + +function user_by_field (field, value, callback) { + var dbc; + async.waterfall([ + // get a connection + function (cb) { + db.db(cb); + }, + + // fetch the user. + function (dbclient, cb) { + dbc = dbclient; + dbc.query( + "SELECT * FROM Users WHERE " + field + + " = ? AND deleted = false", + [ value ], + backhelp.mscb(cb)); + }, + + function (rows, cb) { + if (!rows || rows.length == 0) + cb(backhelp.no_such_user()); + else + cb(null, rows[0]); + } + ], + function (err, user_data) { + if (err) { + callback (err); + } else { + console.log(user_data); + callback(null, user_data); + } + }); +} \ No newline at end of file diff --git a/Chapter12/02_api_testing/app/handlers/albums.js b/Chapter12/02_api_testing/app/handlers/albums.js new file mode 100644 index 0000000..ac2da86 --- /dev/null +++ b/Chapter12/02_api_testing/app/handlers/albums.js @@ -0,0 +1,259 @@ + +var helpers = require('./helpers.js'), + album_data = require("../data/album.js"), + async = require('async'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +/** + * Album class. + */ +function Album (album_data) { + this.name = album_data.name; + this.date = album_data.date; + this.title = album_data.title; + this.description = album_data.description; + this._id = album_data._id; +} + +Album.prototype.name = null; +Album.prototype.date = null; +Album.prototype.title = null; +Album.prototype.description = null; + +Album.prototype.response_obj = function () { + return { name: this.name, + date: this.date, + title: this.title, + description: this.description }; +}; +Album.prototype.photos = function (pn, ps, callback) { + if (this.album_photos != undefined) { + callback(null, this.album_photos); + return; + } + + album_data.photos_for_album( + this.name, + pn, ps, + function (err, results) { + if (err) { + callback(err); + return; + } + + var out = []; + for (var i = 0; i < results.length; i++) { + out.push(new Photo(results[i])); + } + + this.album_photos = out; + callback(null, this.album_photos); + } + ); +}; +Album.prototype.add_photo = function (data, path, callback) { + album_data.add_photo(data, path, function (err, photo_data) { + if (err) + callback(err); + else { + var p = new Photo(photo_data); + if (this.all_photos) + this.all_photos.push(p); + else + this.app_photos = [ p ]; + + callback(null, p); + } + }); +}; + + + + +/** + * Photo class. + */ +function Photo (photo_data) { + this.filename = photo_data.filename; + this.date = photo_data.date; + this.albumid = photo_data.albumid; + this.description = photo_data.description; + this._id = photo_data._id; +} +Photo.prototype._id = null; +Photo.prototype.filename = null; +Photo.prototype.date = null; +Photo.prototype.albumid = null; +Photo.prototype.description = null; +Photo.prototype.response_obj = function() { + return { + filename: this.filename, + date: this.date, + albumid: this.albumid, + description: this.description + }; +}; + + +/** + * Album module methods. + */ +exports.create_album = function (req, res) { + async.waterfall([ + // make sure the albumid is valid + function (cb) { + if (!req.body || !req.body.name) { + cb(helpers.no_such_album()); + return; + } + + // UNDONE: we should add some code to make sure the album + // doesn't already exist! + cb(null); + }, + + function (cb) { + album_data.create_album(req.body, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var a = new Album(results); + helpers.send_success(res, {album: a.response_obj() }); + } + }); +}; + + +exports.album_by_name = function (req, res) { + async.waterfall([ + // get the album + function (cb) { + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else if (!results) { + helpers.send_failure(res, helpers.no_such_album()); + } else { + var a = new Album(album_data); + helpers.send_success(res, { album: a.response_obj() }); + } + }); +}; + + + +exports.list_all = function (req, res) { + album_data.all_albums("date", true, 0, 25, function (err, results) { + if (err) { + helpers.send_failure(res, err); + } else { + var out = []; + if (results) { + for (var i = 0; i < results.length; i++) { + out.push(new Album(results[i]).response_obj()); + } + } + helpers.send_success(res, { albums: out }); + } + }); +}; + + +exports.photos_for_album = function(req, res) { + var page_num = req.query.page ? req.query.page : 0; + var page_size = req.query.page_size ? req.query.page_size : 1000; + + page_num = parseInt(page_num); + page_size = parseInt(page_size); + if (isNaN(page_num)) page_num = 0; + if (isNaN(page_size)) page_size = 1000; + + var album; + async.waterfall([ + function (cb) { + // first get the album. + if (!req.params || !req.params.album_name) + cb(helpers.no_such_album()); + else + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + album = new Album(album_data); + album.photos(page_num, page_size, cb); + }, + function (photos, cb) { + var out = []; + for (var i = 0; i < photos.length; i++) { + out.push(photos[i].response_obj()); + } + cb(null, out); + } + ], + function (err, results) { + if (err) { + helpers.send_failure(res, err); + return; + } + if (!results) results = []; + var out = { photos: results, + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + + +exports.add_photo_to_album = function (req, res) { + var album; + async.waterfall([ + // make sure we have everything we need. + function (cb) { + if (!req.body) + cb(helpers.missing_data("POST data")); + else if (!req.files || !req.files.photo_file) + cb(helpers.missing_data("a file")); + else if (!helpers.is_image(req.files.photo_file.name)) + cb(helpers.not_image()); + else + // get the album + album_data.album_by_name(req.params.album_name, cb); + }, + + function (album_data, cb) { + if (!album_data) { + cb(helpers.no_such_album()); + return; + } + + album = new Album(album_data); + req.body.filename = req.files.photo_file.name; + album.add_photo(req.body, req.files.photo_file.path, cb); + } + ], + function (err, p) { + if (err) { + helpers.send_failure(res, err); + return; + } + var out = { photo: p.response_obj(), + album_data: album.response_obj() }; + helpers.send_success(res, out); + }); +}; + diff --git a/Chapter12/02_api_testing/app/handlers/helpers.js b/Chapter12/02_api_testing/app/handlers/helpers.js new file mode 100644 index 0000000..ab0287f --- /dev/null +++ b/Chapter12/02_api_testing/app/handlers/helpers.js @@ -0,0 +1,107 @@ + +var path = require('path'); + + +exports.version = '0.1.0'; + + +exports.send_success = function (res, data) { + res.writeHead(200, {"Content-Type": "application/json"}); + var output = { error: null, data: data }; + res.end(JSON.stringify(output) + "\n"); +}; + +exports.send_failure = function (res, err) { + var code = exports.http_code_for_error(err); + res.writeHead(code, { "Content-Type" : "application/json" }); + res.end(exports.error_for_resp(err) + "\n"); +}; + +exports.error_for_resp = function (err) { + if (!err instanceof Error) { + console.error("** Unexpected error type! :" + + err.constructor.name); + return JSON.stringify(err); + } else { + return JSON.stringify({ error: err.message, + message: err.description }); + } +} + +exports.error = function (code, message) { + var e = new Error(code); + e.description = message; + return e; +}; + +exports.file_error = function (err) { + err.description = err.message; + err.message = "file_error"; + return e; +}; + + +exports.is_image = function (filename) { + switch (path.extname(filename).toLowerCase()) { + case '.jpg': case '.jpeg': case '.png': case '.bmp': + case '.gif': case '.tif': case '.tiff': + return true; + } + + return false; +}; + + +exports.invalid_resource = function () { + return exports.error("invalid_resource", + "The requested resource does not exist."); +}; + + +exports.missing_data = function (what) { + return exports.error("missing_data", + "You must include " + what); +} + + +exports.not_image = function () { + return exports.error("not_image_file", + "The uploaded file must be an image file."); +}; + + +exports.no_such_album = function () { + return exports.error("no_such_album", + "The specified album does not exist"); +}; + + +exports.http_code_for_error = function (err) { + switch (err.message) { + case "no_such_album": return 403; + case "invalid_resource": return 404; + case "invalid_email_address": return 403; + case 'invalid_album_name': return 403; + case "no_such_user": return 403; + } + + console.log("*** Error needs HTTP response code: " + err.message); + return 503; +} + + +exports.valid_filename = function (fn) { + var re = /[^\.a-zA-Z0-9_-]/; + return typeof fn == 'string' && fn.length > 0 && !(fn.match(re)); +}; + + +exports.invalid_email_address = function () { + return exports.error("invalid_email_address", + "That's not a valid email address, sorry"); +}; + +exports.auth_failed = function () { + return exports.error("auth_failure", + "Invalid email address / password combination."); +}; \ No newline at end of file diff --git a/Chapter12/02_api_testing/app/handlers/pages.js b/Chapter12/02_api_testing/app/handlers/pages.js new file mode 100644 index 0000000..77bf239 --- /dev/null +++ b/Chapter12/02_api_testing/app/handlers/pages.js @@ -0,0 +1,31 @@ + +var helpers = require('./helpers.js'), + fs = require('fs'); + + +exports.version = "0.1.0"; + + +exports.generate = function (req, res) { + + var page = req.params.page_name; + if (req.params.sub_page && req.params.page_name == 'admin') + page = req.params.page_name + "_" + req.params.sub_page; + + fs.readFile( + 'basic.html', + function (err, contents) { + if (err) { + send_failure(res, 500, err); + return; + } + + contents = contents.toString('utf8'); + + // replace page name, and then dump to output. + contents = contents.replace('{{PAGE_NAME}}', page); + res.writeHead(200, { "Content-Type": "text/html" }); + res.end(contents); + } + ); +}; diff --git a/Chapter12/02_api_testing/app/handlers/users.js b/Chapter12/02_api_testing/app/handlers/users.js new file mode 100644 index 0000000..18fba21 --- /dev/null +++ b/Chapter12/02_api_testing/app/handlers/users.js @@ -0,0 +1,138 @@ +var helpers = require('./helpers.js'), + user_data = require("../data/user.js"), + async = require('async'), + bcrypt = require('bcrypt'), + fs = require('fs'); + +exports.version = "0.1.0"; + + +function User (user_data) { + this.uuid = user_data["user_uuid"]; + this.email_address = user_data["email_address"]; + this.display_name = user_data["display_name"]; + this.password = user_data["password"]; + this.first_seen_date = user_data["first_seen_date"]; + this.last_modified_date = user_data["last_modified_date"]; + this.deleted = user_data["deleted"]; +} + +User.prototype.uuid = null; +User.prototype.email_address = null; +User.prototype.display_name = null; +User.prototype.password = null; +User.prototype.first_seen_date = null; +User.prototype.last_modified_date = null; +User.prototype.deleted = false; +User.prototype.check_password = function (pw, callback) { + bcrypt.compare(pw, this.password, callback); +}; +User.prototype.response_obj = function () { + return { + uuid: this.uuid, + email_address: this.email_address, + display_name: this.display_name, + first_seen_date: this.first_seen_date, + last_modified_date: this.last_modified_date + }; +}; + + + +exports.logged_in = function (req, res) { + var li = (req.session && req.session.logged_in_email_address); + helpers.send_success(res, { logged_in: li }); +}; + + +exports.register = function (req, res) { + async.waterfall([ + function (cb) { + var em = req.body.email_address; + if (!em || em.indexOf("@") == -1) + cb(helpers.invalid_email_address()); + else if (!req.body.display_name) + cb(helpers.missing_data("display_name")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // register da user. + function (cb) { + user_data.register( + req.body.email_address, + req.body.display_name, + req.body.password, + cb); + }, + + // mark user as logged in + function (user_data, cb) { + req.session.logged_in = true; + req.session.logged_in_email_address = req.body.email_address; + req.session.logged_in_date = new Date(); + cb(null, user_data); + } + + ], + function (err, user_data) { + if (err) { + helpers.send_failure(res, err); + } else { + var u = new User(user_data); + helpers.send_success(res, {user: u.response_obj() }); + } + }); +}; + + +exports.login = function (req, res) { + + async.waterfall([ + function (cb) { + var em = req.body.email_address + if (!em || em.indexOf('@') == -1) + cb(helpers.invalid_email_address()); + else if (req.session && req.session.logged_in_email_address + == em.toLowerCase()) + cb(helpers.error("already_logged_in", "")); + else if (!req.body.password) + cb(helpers.missing_data("password")); + else + cb(null); + }, + + // first get the user by the email address. + function (cb) { + user_data.user_by_email(req.body.email_address, cb); + }, + + // check the password + function (user_data, cb) { + var u = new User(user_data); + u.check_password(req.body.password, cb); + }, + + function (auth_ok, cb) { + if (!auth_ok) { + cb(helpers.auth_failed()); + return; + } + + req.session.logged_in = true; + req.session.logged_in_email_address = req.body.email_address; + req.session.logged_in_date = new Date(); + cb(null); + } + ], + function (err, results) { + if (!err || err.message == "already_logged_in") { + helpers.send_success(res, { logged_in: true }); + } else { + helpers.send_failure(res, err); + } + }); +}; + diff --git a/Chapter12/02_api_testing/app/local.config.js b/Chapter12/02_api_testing/app/local.config.js new file mode 100644 index 0000000..85e0a8d --- /dev/null +++ b/Chapter12/02_api_testing/app/local.config.js @@ -0,0 +1,16 @@ + + +exports.config = { + db_config: { + host: "localhost", + user: "root", + password: "", + database: "PhotoAlbums", + + pooled_connections: 125, + idle_timeout_millis: 30000 + }, + + static_content: "../static/" +}; + diff --git a/Chapter12/02_api_testing/app/package.json b/Chapter12/02_api_testing/app/package.json new file mode 100644 index 0000000..a6f903b --- /dev/null +++ b/Chapter12/02_api_testing/app/package.json @@ -0,0 +1,14 @@ +{ + "name": "MySQL-Demo", + "description": "Demonstrates Using MySQL Database connectivity", + "version": "0.0.1", + "private": true, + "dependencies": { + "express": "3.x", + "async": "0.1.x", + "generic-pool": "2.x", + "mysql": "2.x", + "bcrypt": "0.x", + "node-uuid": "1.x" + } +} diff --git a/Chapter12/02_api_testing/app/server.js b/Chapter12/02_api_testing/app/server.js new file mode 100644 index 0000000..d3cc515 --- /dev/null +++ b/Chapter12/02_api_testing/app/server.js @@ -0,0 +1,69 @@ + +var express = require('express'); +var app = express(); + +var db = require('./data/db.js'), + album_hdlr = require('./handlers/albums.js'), + page_hdlr = require('./handlers/pages.js'), + user_hdlr = require('./handlers/users.js'), + helpers = require('./handlers/helpers.js'); + +app.use(express.logger('dev')); +app.use(express.bodyParser({ keepExtensions: true })); +app.use(express.static(__dirname + "/../static")); +app.use(express.cookieParser("kitten on keyboard")); +app.use(express.cookieSession({ + maxAge: 86400000 +})); + +app.get('/v1/albums.json', album_hdlr.list_all); +app.put('/v1/albums.json', album_hdlr.create_album); +app.get('/v1/albums/:album_name.json', album_hdlr.album_by_name); + +app.get('/v1/albums/:album_name/photos.json', album_hdlr.photos_for_album); +app.put('/v1/albums/:album_name/photos.json', album_hdlr.add_photo_to_album); + +app.get('/pages/:page_name', page_hdlr.generate); +app.get('/pages/:page_name/:sub_page', requireLogin, page_hdlr.generate); + +app.put('/v1/users.json', user_hdlr.register); +app.post('/v1/users/login.json', user_hdlr.login); +app.get('/v1/users/logged_in.json', user_hdlr.logged_in); + + +app.get("/", function (req, res) { + res.redirect("/pages/home"); + res.end(); +}); + +app.get('*', four_oh_four); + +function four_oh_four(req, res) { + res.writeHead(404, { "Content-Type" : "application/json" }); + res.end(JSON.stringify(helpers.invalid_resource()) + "\n"); +} + + +function requireLogin(req, res, next) { + // all pages are always approved if you're logged in. + if (req.session && req.session.logged_in_email_address) + next(); // continue + else if (req.param.page_name == 'admin') { + res.redirect("/pages/login"); // force login for admin pages + res.end(); + } else + next(); // continue +} + + + +db.init(function (err, results) { + if (err) { + console.error("** FATAL ERROR ON STARTUP: "); + console.error(err); + process.exit(-1); + } + + app.listen(8080); +}); + diff --git a/Chapter12/02_api_testing/schema.sql b/Chapter12/02_api_testing/schema.sql new file mode 100644 index 0000000..61ab5c3 --- /dev/null +++ b/Chapter12/02_api_testing/schema.sql @@ -0,0 +1,53 @@ +DROP DATABASE IF EXISTS PhotoAlbums; + + +CREATE DATABASE PhotoAlbums + DEFAULT CHARACTER SET utf8 + DEFAULT COLLATE utf8_general_ci; + +USE PhotoAlbums; + + +CREATE TABLE Albums +( + name VARCHAR(50) UNIQUE PRIMARY KEY, + title VARCHAR(100), + date DATETIME, + description VARCHAR(500), + + -- allow for sorting on date. + INDEX(date) +) +ENGINE = InnoDB; + +CREATE TABLE Photos +( + album_name VARCHAR(50), + filename VARCHAR(50), + description VARCHAR(500), + date DATETIME, + + FOREIGN KEY (album_name) REFERENCES Albums (name), + INDEX (album_name, date) +) +ENGINE = InnoDB; + + +CREATE TABLE Users +( + user_uuid VARCHAR(50) UNIQUE PRIMARY KEY, + email_address VARCHAR(150) UNIQUE, + + display_name VARCHAR(100) UNIQUE, + password VARCHAR(100), + + first_seen_date BIGINT, + last_modified_date BIGINT, + deleted BOOL DEFAULT false, + + INDEX(email_address, deleted), + INDEX(user_uuid, deleted) +) +ENGINE = InnoDB; + + diff --git a/Chapter12/02_api_testing/static/content/#album.js# b/Chapter12/02_api_testing/static/content/#album.js# new file mode 100644 index 0000000..442c047 --- /dev/null +++ b/Chapter12/02_api_testing/static/content/#album.js# @@ -0,0 +1,60 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +xundo \ No newline at end of file diff --git a/Chapter12/02_api_testing/static/content/admin_add_album.js b/Chapter12/02_api_testing/static/content/admin_add_album.js new file mode 100644 index 0000000..f2987d6 --- /dev/null +++ b/Chapter12/02_api_testing/static/content/admin_add_album.js @@ -0,0 +1,22 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_album.html", function(d){ + tmpl = d; + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter12/02_api_testing/static/content/admin_add_photos.js b/Chapter12/02_api_testing/static/content/admin_add_photos.js new file mode 100644 index 0000000..350e536 --- /dev/null +++ b/Chapter12/02_api_testing/static/content/admin_add_photos.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_add_photos.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter12/02_api_testing/static/content/admin_home.js b/Chapter12/02_api_testing/static/content/admin_home.js new file mode 100644 index 0000000..65f31a2 --- /dev/null +++ b/Chapter12/02_api_testing/static/content/admin_home.js @@ -0,0 +1,27 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/admin_home.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page +/* $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + */ + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + diff --git a/Chapter12/02_api_testing/static/content/album.js b/Chapter12/02_api_testing/static/content/album.js new file mode 100644 index 0000000..c4d918e --- /dev/null +++ b/Chapter12/02_api_testing/static/content/album.js @@ -0,0 +1,67 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // get our album name. + var re = "/pages/album/([a-zA-Z0-9_-]+)"; + var results = new RegExp(re).exec(window.location.href); + var album_name = results[1]; + + // Load the HTML template + $.get("/templates/album.html", function(d){ + tmpl = d; + }); + + var p = $.urlParam("page"); + var ps = $.urlParam("page_size"); + if (p < 0) p = 0; + if (ps <= 0) ps = 1000; + + var qs = "?page=" + p + "&page_size=" + ps; + var url = "/v1/albums/" + album_name + "/photos.json" + qs; + + // Retrieve the server data and then initialise the page + $.getJSON(url, function (d) { + var photo_d = massage_album(d); + $.extend(tdata, photo_d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + }) + }(); +}); + + +function massage_album(d) { + if (d.error != null) return d; + var obj = { photos: [] }; + + var p = d.data.photos; + var a = d.data.album_data; + + for (var i = 0; i < p.length; i++) { + var url = "/albums/" + a.name + "/" + p[i].filename; + obj.photos.push({ url: url, desc: p[i].description }); + } + + if (obj.photos.length > 0) obj.has_photos = obj.photos.length; + return obj; +} + + +$.urlParam = function(name){ + var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(window.location.href); + if (!results) + { + return 0; + } + return results[1] || 0; +} \ No newline at end of file diff --git a/Chapter12/02_api_testing/static/content/home.js b/Chapter12/02_api_testing/static/content/home.js new file mode 100644 index 0000000..fa7010b --- /dev/null +++ b/Chapter12/02_api_testing/static/content/home.js @@ -0,0 +1,28 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/home.html", function(d){ + tmpl = d; + }); + + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/albums.json", function (d) { + $.extend(tdata, d.data); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + var renderedPage = Mustache.to_html( tmpl, tdata ); 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v.access(this,function(n,r,i){var s;return v.isWindow(n)?n.document.documentElement["client"+e]:n.nodeType===9?(s=n.documentElement,Math.max(n.body["scroll"+e],s["scroll"+e],n.body["offset"+e],s["offset"+e],s["client"+e])):i===t?v.css(n,r,i,u):v.style(n,r,i,u)},n,o?i:t,o,null)}})}),e.jQuery=e.$=v,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return v})})(window); \ No newline at end of file diff --git a/Chapter12/02_api_testing/static/content/login.js b/Chapter12/02_api_testing/static/content/login.js new file mode 100644 index 0000000..57840e2 --- /dev/null +++ b/Chapter12/02_api_testing/static/content/login.js @@ -0,0 +1,30 @@ +$(function(){ + + var tmpl, // Main template HTML + tdata = {}; // JSON data object that feeds the template + + // Initialise page + var initPage = function() { + + // Load the HTML template + $.get("/templates/login.html", function(d){ + tmpl = d; + }); + + // Retrieve the server data and then initialise the page + $.getJSON("/v1/users/logged_in.json", function (d) { + $.extend(tdata, d); + }); + + // When AJAX calls are complete parse the template + // replacing mustache tags with vars + $(document).ajaxStop(function () { + if (tdata.data.logged_in) + window.location = "/pages/admin/home"; + else { + var renderedPage = Mustache.to_html( tmpl, tdata ); + $("body").html( renderedPage ); + } + }); + }(); +}); diff --git a/Chapter12/02_api_testing/static/content/mustache.js b/Chapter12/02_api_testing/static/content/mustache.js new file mode 100644 index 0000000..0148d29 --- /dev/null +++ b/Chapter12/02_api_testing/static/content/mustache.js @@ -0,0 +1,625 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // diff --git a/Chapter12/02_api_testing/static/templates/admin_add_photos.html b/Chapter12/02_api_testing/static/templates/admin_add_photos.html new file mode 100644 index 0000000..d9cbe8d --- /dev/null +++ b/Chapter12/02_api_testing/static/templates/admin_add_photos.html @@ -0,0 +1,86 @@ +
+ +
+
Add to Album:
+
+ +
+
Image:
+
+
Description
+
+
+ + + + + +
+ + diff --git a/Chapter12/02_api_testing/static/templates/admin_home.html b/Chapter12/02_api_testing/static/templates/admin_home.html new file mode 100644 index 0000000..4db4cf1 --- /dev/null +++ b/Chapter12/02_api_testing/static/templates/admin_home.html @@ -0,0 +1,7 @@ + +

Admin Operations

+ + diff --git a/Chapter12/02_api_testing/static/templates/album.html b/Chapter12/02_api_testing/static/templates/album.html new file mode 100644 index 0000000..520560a --- /dev/null +++ b/Chapter12/02_api_testing/static/templates/album.html @@ -0,0 +1,19 @@ +
+ {{#has_photos}} +

There are {{ has_photos }} photos in this album

+ {{/has_photos}} + {{#photos}} +
+
+
+
+

{{ desc }}

+
+
+ {{/photos}} +
+ {{^photos}} +

This album does't have any photos in it, sorry.

+ {{/photos}} +

diff --git a/Chapter12/02_api_testing/static/templates/home.html b/Chapter12/02_api_testing/static/templates/home.html new file mode 100644 index 0000000..a7d1436 --- /dev/null +++ b/Chapter12/02_api_testing/static/templates/home.html @@ -0,0 +1,16 @@ +
+ Admin +
+
+

There are {{ albums.length }} albums

+
    + {{#albums}} +
  • + {{name}} +
    • + {{/albums}} + {{^albums}} +
  • Sorry, there are currently no albums
    • + {{/albums}} +
+
diff --git a/Chapter12/02_api_testing/static/templates/login.html b/Chapter12/02_api_testing/static/templates/login.html new file mode 100644 index 0000000..b24f910 --- /dev/null +++ b/Chapter12/02_api_testing/static/templates/login.html @@ -0,0 +1,49 @@ + +
+
+
+
Email address:
+
+
Password:
+
+
+
+ + + + diff --git a/Chapter12/02_api_testing/static/templates/register.html b/Chapter12/02_api_testing/static/templates/register.html new file mode 100644 index 0000000..491e4fd --- /dev/null +++ b/Chapter12/02_api_testing/static/templates/register.html @@ -0,0 +1,59 @@ + + +
+
+
+
Email address:
+
+
Display Name:
+
+
Password:
+
+
Password (confirm):
+
+
+
+ + + + + diff --git a/Chapter12/02_api_testing/test/01_api_albums.js b/Chapter12/02_api_testing/test/01_api_albums.js new file mode 100644 index 0000000..1268664 --- /dev/null +++ b/Chapter12/02_api_testing/test/01_api_albums.js @@ -0,0 +1,59 @@ + +var request = require('request'); + +var h = "http://localhost:8080"; + +exports.no_albums = function (test) { + test.expect(5); + request.get(h + "/v1/albums.json", function (err, resp, body) { + test.equal(err, null); + test.equal(resp.statusCode, 200); + var r = JSON.parse(body); + test.equal(r.error, null); + test.notEqual(r.data.albums, undefined); + test.equal(r.data.albums.length, 0); + test.done(); + }); +}; + +exports.create_album = function (test) { + var d = "We went to HK to do some shopping and spend new years. Nice!"; + var t = "New Years in Hong Kong"; + test.expect(7); + request.put( + { url: h + "/v1/albums.json", + json: { name: "hongkong2012", + title: t, + description: d, + date: "2012-12-28" } }, + function (err, resp, body) { + test.equal(err, null); + test.equal(resp.statusCode, 200); + test.notEqual(body.data.album, undefined); + test.equal(body.data.album.name, "hongkong2012"), + test.equal(body.data.album.date, "2012-12-28"); + test.equal(body.data.album.description, d); + test.equal(body.data.album.title, t); + test.done(); + } + ); +} + +exports.fail_create_album = function (test) { + test.expect(4); + request.put( + { url: h + "/v1/albums.json", + headers: { "Content-Type" : "application/json" }, + json: { name: "hong kong 2012", + title: "title", + description: "desc", + date: "2012-12-28" } }, + function (err, resp, body) { + test.equal(err, null); + test.equal(resp.statusCode, 403); + test.notEqual(body.error, null); + test.equal(body.error, "invalid_album_name"); + test.done(); + } + ); +}; diff --git a/Chapter12/02_api_testing/test/02_api_photos.js b/Chapter12/02_api_testing/test/02_api_photos.js new file mode 100644 index 0000000..e69de29 diff --git a/Chapter12/02_api_testing/test/Makefile b/Chapter12/02_api_testing/test/Makefile new file mode 100644 index 0000000..5fabd9a --- /dev/null +++ b/Chapter12/02_api_testing/test/Makefile @@ -0,0 +1,18 @@ + + +all: prepare run-tests + @echo "Done" + +prepare: + @-rm -fr ../static/albums/* + @echo "Preparing MySQL db for running" + @/usr/local/mysql/bin/mysql -u root < ../schema.sql + @echo "Launching app server" + @-killall node + @sh -c "pushd ../app && sh -c \"node server.js 2>&1 > ../test/output.txt &\" && popd && sleep 2" + +run-tests: + @echo "Starting to run tests..." + @node_modules/.bin/nodeunit 01_api_albums.js 02_api_photos.js + @echo "Tested! Shutting down app server" + @killall node diff --git a/Chapter12/02_api_testing/test/output.txt b/Chapter12/02_api_testing/test/output.txt new file mode 100644 index 0000000..d8f0e88 --- /dev/null +++ b/Chapter12/02_api_testing/test/output.txt @@ -0,0 +1,4 @@ +Database initialised and connected. +GET /v1/albums.json 200 4ms +PUT /v1/albums.json 200 5ms +PUT /v1/albums.json 403 1ms diff --git a/Chapter12/02_api_testing/test/package.json b/Chapter12/02_api_testing/test/package.json new file mode 100644 index 0000000..4d8f473 --- /dev/null +++ b/Chapter12/02_api_testing/test/package.json @@ -0,0 +1,10 @@ +{ + "name": "API-testing-demo", + "description": "Demonstrates API Testing with request and nodeunit", + "version": "0.0.1", + "private": true, + "dependencies": { + "nodeunit": "0.7.x", + "request": "2.x" + } +} diff --git a/mac_osx_from_source.rtf b/mac_osx_from_source.rtf new file mode 100644 index 0000000..415a021 --- /dev/null +++ b/mac_osx_from_source.rtf @@ -0,0 +1,144 @@ +{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340 +{\fonttbl\f0\fswiss\fcharset0 ArialMT;\f1\fmodern\fcharset0 Courier;\f2\fnil\fcharset0 LucidaGrande; +} +{\colortbl;\red255\green255\blue255;} +\paperw11900\paperh16840\margl1440\margr1440\vieww17560\viewh12320\viewkind0 +\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803 + +\f0\b\fs30 \cf0 Installing from Source on Mac OS X\ + +\b0\fs24 \ +If you have Xcode on your Mac, you can also build and install Node.js from the source code.\ +\ + +\b\fs26 0. Getting the Command-Line Compiler via Xcode\ +\ + +\b0\fs24 To build Node.js from source on your OS X\'96based computer, you first need to make sure that you have the command-line compiler tools installed. To do this, you can type\ +\ + +\f1 c++ +\f0 \ +\ +in a terminal window. If you don\'92t know what a terminal window is, you should probably use the PKG installer method described previously for installing Node.js onto your Mac.\ +\ +If you see something like\ +\ + +\f1 client:LearningNode marcw$ c++\ +clang: error: no input files +\f0 \ +\ +you have the compiler installed and will be able to build. If instead you see\ +\ + +\f1 client:LearningNode marcw$ c++\ +-bash: c++: No such file or directory +\f0 \ +\ +you need to do the following:\ +\ +1. Launch Xcode.\ +2. View Xcode Preferences ( +\f2 \uc0\u8984 + , +\f0 ).\ +3. Select the Downloads page and Components group, and then click on Install or Update next to Command Line Tools.\ +\ +After these command-line tools are installed, the c++ command should work, and you should be able to continue compiling.\ +\ + +\b\fs26 1. Building Node.js\ + +\b0\fs24 \ +Start by creating some scratch space to download and compile from:\ +\ + +\f1 cd\ +mkdir -p src/scratch\ +cd src/scratch\ + +\f0 \ +The next step is to download and unpack the Node sources. You can do this using +\f1 curl +\f0 or +\f1 wget +\f0 :\ +\ + +\f1 curl http://nodejs.org/dist/v0.10.1/node-v0.10.1.tar.gz -o node-v0.10.1.tar.gz\ +tar xfz node-v0.10.1.tar.gz\ +cd node-v0.10.1 +\f0 \ +\ +Next, run the configuration scripts to prepare for the build:\ +\ + +\f1 ./configure +\f0 \ +\ +You can let it use the default +\i /usr/local +\i0 as the installation point because it\'92s a good location from which to run this software. If you want to install it somewhere else, you can specify the +\f1 --prefix +\f0 switch to the configure script, as follows:\ +\ + +\f1 ./configure --prefix =/opt/nodejs +\f0 \ +\ +The configure script should print out some JavaScript Object Notation (JSON) similar to the following:\ +\ + +\f1 \{ 'target_defaults': \{ 'cflags': [],\ + 'default_configuration': 'Release',\ + 'defines': [],\ + 'include_dirs': [],\ + 'libraries': []\},\ + 'variables': \{ 'clang': 1,\ + 'host_arch': 'x64',\ + 'node_install_npm': 'true',\ + 'node_install_waf': 'true',\ + 'node_prefix': '',\ + 'node_shared_openssl': 'false',\ + 'node_shared_v8': 'false',\ + 'node_shared_zlib': 'false',\ + 'node_unsafe_optimizations': 0,\ + 'node_use_dtrace': 'false',\ + 'node_use_etw': 'false',\ + 'node_use_openssl': 'true',\ + 'target_arch': 'x64',\ + 'v8_no_strict_aliasing': 1,\ + 'v8_use_snapshot': 'true'\}\}\ +creating ./config.gypi\ +creating ./config.mk\ + +\f0 \ +Now you can build the product. Type in the following command and go get yourself a coffee (or two, depending on how fast your machine is):\ +\ + +\f1 make +\f0 \ +\ +After the make has completed successfully (if it fails, do a Google search on the problem because you will almost certainly not be the first to see it), you can then install the software to your chosen prefix (/usr/local if you did not choose one):\ +\ + +\f1 sudo make install +\f0 \ +\ +When you are done, you should be able to just enter\ +\ + +\f1 node --version\ +npm --version\ + +\f0 \ +and get output somewhat similar to\ +\ + +\f1 client:node-v0.10.3 marcw$ node --version\ +v0.10.3\ +client:node-v0.10.3 marcw$ npm --version\ +1.1.65 +\f0 \ +\ +} \ No newline at end of file