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user.js
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user.js
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'use strict';
const express = require('express');
const router = express.Router();
const clc = require('cli-color');
const { loadActorByUsername } = require("./lib/loadActorByUsername")
const { loadFollowersByUri, loadFollowingByUri } = require("./lib/loadFollowersByUsername")
const { makeMessage } = require("./lib/makeMessage");
const { wrapInOrderedCollection } = require('./lib/wrappers');
const { addresseesToString } = require("./lib/sendLatestMessages")
const { lookupAccountByURI, removeAccount, updateAccount, findInbox } = require("./lib/addAccount")
const { startAPLog, endAPLog } = require("./lib/aplog");
const { addActivity } = require("./lib/addActivity")
const { verifySign, makeDigest } = require("./lib/verifySign");
const { Message, Account, Activity, Addressee } = require('./models/db');
const { handleActivity, unhandled } = require('./lib/handleActivity');
const { loadRecipients, loadRecipientsByList } = require('./lib/loadRecipientsByList');
const { signAndSend } = require('./lib/signAndSend');
/* BODY PARSER */
var bodyParser = require('body-parser');
const { flatMapAddressees } = require('./utils/flatmapaddressees');
const { parseMessage } = require('./lib/addMessage');
router.use(bodyParser.json({type: 'application/activity+json'})); // support json encoded bodies
router.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies
router.get('/:username', async function (req, res) {
const aplog = await startAPLog(req)
let name = req.params.username;
let domain = req.app.get('domain');
await loadActorByUsername(name, domain)
.then(async(data) => {
await endAPLog(aplog, data);
res.contentType("application/activity+json")
res.json(data);
})
.catch(async(err) => {
console.log(clc.cyan("WARNING"), "No Account for '"+name+"'")
await endAPLog(aplog, err.msg, err.statuscode)
res.sendStatus(err.statuscode);
})
});
router.get('/:username/followers', async function (req, res) {
const aplog = await startAPLog(req)
let username = req.params.username;
let domain = req.app.get('domain');
const page = req.query.page ? req.query.page : 0;
// Check user
await Account.query().where("handle", "=", username+"@"+domain).first()
.then(async(account) => {
if(account){
const uri = account.uri;
// Load items and wrap
await loadFollowersByUri(uri, page)
.then(async (followersCollection) => {
await endAPLog(aplog, followersCollection)
res.contentType("application/activity+json")
res.json(followersCollection);
})
.catch(async(e) => {
console.log(e)
await endAPLog(aplog, e, 500)
res.sendStatus(500);
});
}else{
throw Error("Username not found")
}
})
.catch(async(e) => {
console.error(e)
await endAPLog(aplog, "Username not found", 404)
return res.sendStatus(404);
})
});
router.get('/:username/following', async function (req, res) {
const aplog = await startAPLog(req)
let username = req.params.username;
let domain = req.app.get('domain');
const page = req.query.page ? req.query.page : 0;
// Check user
const uri = await Account.query().where("handle", "=", username+"@"+domain).first()
.then((account) => {
return account.uri;
})
.catch(async(e) => {
console.error(e)
await endAPLog(aplog, "Username not found", 400)
return res.sendStatus(400);
})
// Load items and wrap
await loadFollowingByUri(uri, page)
.then(async (followersCollection) => {
await endAPLog(aplog, followersCollection)
res.contentType("application/activity+json")
res.json(followersCollection);
})
.catch(async(e) => {
await endAPLog(aplog, e, 500)
res.statusCode(500);
});
});
router.get(["/:username/outbox"], async(req, res) => {
const aplog = await startAPLog(req)
const { username } = req.params;
const { page } = req.query;
const domain = req.app.get('domain');
// Check user
const user_uri = await Account.query().where("handle", "=", username+"@"+domain).select("uri").first()
.then((d) => { return d.uri })
.catch((e) => { res.sendStatus(500)})
//
const public_messages = await Addressee.query()
.where("type", 1) // this is public!
.select("message_uri")
.then((rows) => {
return rows.map((v) => { return v.message_uri })
})
// Load items
const activities = await Activity.query()
.whereIn("object", public_messages)
.andWhere("actor", "=", user_uri)
.select("uri as id", "type", "createdAt as published", "object")
.withGraphFetched("message.[creator, addressees_raw]")
.then((activities) => {
const all = activities.map((a) => {
var to = new Array();
var cc = new Array();
if(a.message && a.message.addressees_raw){
to = flatMapAddressees(a.message.addressees_raw, 'to')
cc = flatMapAddressees(a.message.addressees_raw, 'cc')
}
var object = null;
if(a.message && a.message.uri){
object = a.message.uri
}
return {
id: a.id,
type: a.type,
published: a.published,
to,
cc,
actor: user_uri,
object
};
})
return all;
})
/*const messages = await Message.query().where("attributedTo", user_uri)
.withGraphFetched("[addressees]")
.then(async(messages) => {
var output = new Array();
for(let message of messages){
const { to, cc } = addresseesToString(message.addressees)
output.push(await makeMessage(message.type, username, domain, message.guid, { published: message.publishedAt, content: message.content, to, cc }))
}
return output;
})*/
// Wrap
const id = "https://"+domain+"/u/"+username+"/outbox";
const data = wrapInOrderedCollection(id, activities);
await endAPLog(aplog, data)
res.contentType("application/activity+json")
res.json(data)
})
router.get(["/:username/collections/featured"], async(req, res) => {
// MASTODON = https://todon.eu/users/kzxpr/collections/featured
const aplog = await startAPLog(req)
const { username } = req.params;
const { page } = req.query;
const domain = req.app.get('domain');
const context = new Array("https://www.w3.org/ns/activitystreams")
// Check user
const user_uri = await Account.query().where("handle", "=", username+"@"+domain).select("uri").first()
.then((d) => { return d.uri })
.catch((e) => { res.sendStatus(500)})
// Load items
const messages = await Message.query()
.where("attributedTo", user_uri)
.andWhere("pinned", "=", 1)
.withGraphFetched("[addressees]")
.then(async(messages) => {
var output = new Array();
for(let message of messages){
const { to, cc} = addresseesToString(message.addressees)
const uri_parts = message.uri.split("/")
const guid = uri_parts[(uri_parts.length-1)]
output.push(await makeMessage(message.type, username, domain, guid, { published: message.publishedAt, content: message.content, to, cc }));
}
return output;
})
// Wrap
// type = OrderedCollection vs OrderedCollectionPage
const data = {
"@context": context,
"id": "https://"+domain+"/u/"+username+"/collections/featured",
"type": "OrderedCollection",
"totalItems": messages.length,
"orderedItems": messages
}
await endAPLog(aplog, data)
res.contentType("application/activity+json")
res.json(data)
})
router.get("/:username/statuses/:messageid", async (req, res) => {
const aplog = await startAPLog(req)
const { username, messageid } = req.params;
const domain = req.app.get('domain');
const uri = "https://"+domain+"/u/"+username+"/statuses/"+messageid;
const messages = await Message.query()
.where("uri", "=", uri).first()
.withGraphFetched("[attachments, tags, addressees_raw]")
.then(async (message) => {
//console.log("M", uri, message)
if(message){
var href = new Array();
var mediaType = new Array();
var blurhash = new Array();
var width = new Array();
var height = new Array();
var n_attachs = 0;
if(message.attachments){
n_attachs = message.attachments.length;
for(let a of message.attachments){
href.push(a.url)
mediaType.push(a.mediaType)
blurhash.push(a.blurhash)
width.push(a.width)
height.push(a.height)
}
}
const to = flatMapAddressees(message.addressees_raw, 'to')
const cc = flatMapAddressees(message.addressees_raw, 'cc')
const taglist = message.tags.map((v) => {
return v.name.substr(1)
})
const message_id = message.uri.split("/")
const guid = message_id[(message_id.length-1)]
const msg = await makeMessage(message.type, username, domain, guid,
{
url: message.url,
published: message.publishedAt,
content: message.content,
to, cc, summary: message.summary,
updated: message.updated,
n_attachs, href, mediaType, blurhash, width, height, tags: taglist
}
);
var obj = {
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"ostatus": "http://ostatus.org#",
"atomUri": "ostatus:atomUri",
"conversation": "ostatus:conversation",
"toot": "http://joinmastodon.org/ns#",
}],
...msg
}
/* IT SEEMS LIKE THIS SHOULD *NOT* BE WRAPPED */
await endAPLog(aplog, obj)
res.contentType("application/activity+json")
res.json(obj)
}else{
await endAPLog(aplog, "The message you requested doesn't exist", 404)
res.sendStatus(404)
}
})
.catch(async(e) => {
console.error(e)
await endAPLog(aplog, e, 500)
res.sendStatus(500)
})
})
router.post(['/inbox', '/:username/inbox'], async function (req, res) {
const username = req.params.username || "!shared!";
let domain = req.app.get('domain');
const aplog = await startAPLog(req)
const reqtype = req.body.type;
console.log(clc.blue("POST /inbox"), "to "+username+" ("+reqtype+") from "+req.body.actor)
try {
// VALIDATE DIGEST
const digest = makeDigest(JSON.stringify(req.body));
if(digest!=req.headers.digest){
console.log("DIGEST DOESN'T MATCH");//, digest, req.headers)
//throw new Error("Digest doesn't match")
}
// VERIFY BY SIGNATURE
var publicKey;
const account = await lookupAccountByURI(req.body.actor)
if(account){
publicKey = account.pubkey;
}else{
throw new Error("External account not found - so no public key!!!!!!!")
}
// const digest = crypto.createHash('sha256').update(JSON.stringify(body)).digest('base64');
const verified = verifySign({ method: 'POST', url: req.originalUrl, ...req.headers}, publicKey);
if(!verified){
throw new Error("Signature invalid")
}
} catch(e) {
console.log(clc.red("ERROR"), "doing lookupAccountByURI", e)
await endAPLog(aplog, e, 400)
res.sendStatus(400) // bad request!
return;
}
// CHECK IF ACTIVITY IS ALREADY REGISTERED - IF NOT, ADD ACTIVITY
try{
//console.log("What's in req", req.body)
const proceed = await addActivity(req.body)
if(!proceed){
//throw new Error("Activity already in DB")
await unhandled({ statuscode: 200, msg: "Activity already in DB" })
}
} catch(e) {
// IGNORE!!!!!
console.log(clc.cyan("IGNORING"), "activity already in DB", e)
await endAPLog(aplog, "Activity already in DB", 208)
res.sendStatus(208)
return;
}
try {
const resp = await handleActivity(reqtype, req.body)
const statuscode = resp.statuscode || 200;
const data = resp.data || null;
const msg = resp.msg || "";
console.log(clc.green("SUCCESS"), msg)
if(statuscode != 200){
await endAPLog(aplog, msg, statuscode)
res.sendStatus(statuscode);
return;
}else{
await endAPLog(aplog, msg)
res.contentType("application/activity+json")
res.send(data)
return;
}
} catch(e) {
console.log(clc.red("ERROR"), e)
const statuscode = e.statuscode || 500;
res.sendStatus(statuscode);
return;
}
});
async function sendStuff(recipient_uri, body, account_uri, apikey){
return new Promise(async(resolve, reject) => {
//console.log("TRIGGER sendStuff", body)
var sent_log = new Array();
await findInbox(recipient_uri)
.then(async(inbox) => {
if(inbox){
//console.log("FOUDN INBOX", inbox)
let recipient_url = new URL(recipient_uri);
let targetDomain = recipient_url.hostname;
await signAndSend(body, account_uri, targetDomain, inbox, apikey)
.then((data) => {
console.log(clc.green("SUCCESS:"), "Sent to", recipient_uri, ":", data)
resolve({
user: recipient_uri,
status: "ok"
})
})
.catch((err) => {
console.error(err)
reject({
user: recipient_uri,
status: err
})
})
}else{
console.error("Could not findInbox for "+recipient_uri)
reject("Could not findInbox for "+recipient_uri)
}
})
.catch((e) => {
console.log("ERROR finding inbox for "+recipient_uri, e)
reject({
user: recipient_uri,
status: e
})
})
})
}
/**
* This requires a FINISHED Activity object!
*/
router.post('/:username/outbox', async function (req, res) {
const username = req.params.username;
let domain = req.app.get('domain');
const aplog = await startAPLog(req)
const { to, cc, actor, type, id } = req.body;
const { authorization, host } = req.headers;
console.log(clc.blue("POST /outbox"), "("+type+") from "+actor)
/* AUTHORIZATION */
if(host!=domain){
// TO-DO: I'm not sure this is working!
console.log("UNAUTHORIZED", host, domain)
await endAPLog(aplog, "Unauthorized host", 405)
res.sendStatus(405);
return;
}
/* CHECK APIKEY */
const account_uri = "https://"+domain+"/u/"+username;
const account = await Account.query().where("uri", "=", account_uri).select("apikey").first();
const apikey = account.apikey;
if(apikey && authorization != "Bearer "+apikey){
console.log("Unauthorized bearer (check apikey)", authorization)
await endAPLog(aplog, "Unauthorized Bearer", 405)
res.sendStatus(405);
return;
}
/* COMBINE 'to' AND 'cc' TO RECIPIENT LIST */
let recipient_list = to;
if(Array.isArray(cc)){
recipient_list = to.concat(cc);
}
/* Resolve all recipients */
const recipients = await loadRecipientsByList(recipient_list, actor)
/* ADD ACTIVITY TO DATABASE */
let statuscode;
try {
//console.log("handleActivity", type, wrapped)
await handleActivity(type, wrapped)
//console.log("DOWN HERE!", id)
// Activity was created - Set statuscode to 201
statuscode = 201;
res.setHeader("Location", id)
} catch(e) {
console.log("SOME ERROR", e)
statuscode = 500;
await endAPLog(aplog, "unknown error", statuscode)
res.sendStatus(statuscode);
return;
}
//console.log("READY TO SEND...", recipients)
/* SEND IT! */
var sent_log = {
err: 0,
logs: []
};
var sends = new Array();
for(let recipient of recipients){
var recipient_uri;
if(typeof recipient === "string"){
recipient_uri = recipient
}else{
recipient_uri = recipient.id;
}
await sendStuff(recipient_uri, req.body, account_uri, apikey)
//console.log("R", recipient_uri)
}
//console.log("SENDS", sends)
/*await Promise.all(sends)
.then(async(ok) => {
console.log("OK", ok)
})
.catch((e) => {
console.log("ERR?", e)
})*/
/* FINISH IT AND SEND RESPONSE */
if(statuscode != 201){
await endAPLog(aplog, "Unhandled error", statuscode)
res.sendStatus(statuscode);
return;
}else{
await endAPLog(aplog, sent_log)
res.contentType("application/activity+json")
res.send(sent_log)
}
});
router.all("*", async(req, res) => {
//const aplog = await startAPLog(req)
//await endAPLog(aplog, "", 404)
res.sendStatus(404)
})
module.exports = router;