(bluefox) add s7 adapter

(bluefox) calculate mac on linux

Author: GermanBluefox

conf/sources-dist.json

@@ -85,6 +85,10 @@
     "meta": "https://raw.githubusercontent.com/ioBroker/ioBroker.ping/master/io-package.json",
     "icon": "https://raw.githubusercontent.com/ioBroker/ioBroker.ping/master/admin/ping.png"
   },
+  "s7": {
+    "meta": "https://raw.githubusercontent.com/ioBroker/ioBroker.s7/master/io-package.json",
+    "icon": "https://raw.githubusercontent.com/ioBroker/ioBroker.s7/master/admin/S7.png"
+  },
   "sayit": {
     "meta": "https://raw.githubusercontent.com/ioBroker/ioBroker.sayit/master/io-package.json",
     "icon": "https://raw.githubusercontent.com/ioBroker/ioBroker.sayit/master/admin/sayit.png"

lib/setup.js

@@ -2790,18 +2790,20 @@ function dbSetup(iopkg, callback) {
                         if (!err && res && res.native && res.native.uuid) {
                             if (!(--tasks)) setupReady(callback);
                         } else {
-                            objects.setObject('system.meta.uuid', {
-                                type: 'meta',
-                                common: {
-                                    name: 'uuid',
-                                    type: 'uuid'
-                                },
-                                native: {
-                                    uuid: uuid(true)
-                                }
-                            }, function () {
-                                console.log('object system.meta.uuid created');
-                                if (!(--tasks)) setupReady(callback);
+                            uuid(function(res) {
+                                objects.setObject('system.meta.uuid', {
+                                    type: 'meta',
+                                    common: {
+                                        name: 'uuid',
+                                        type: 'uuid'
+                                    },
+                                    native: {
+                                        uuid: res
+                                    }
+                                }, function () {
+                                    console.log('object system.meta.uuid created');
+                                    if (!(--tasks)) setupReady(callback);
+                                });
                             });
                         }
                     });
@@ -2814,11 +2816,45 @@ function dbSetup(iopkg, callback) {
     }
 }
 
+function getMac(callback) {
+    var exec      = require('child_process').exec;
+    var macRegex  = /(?:[a-z0-9]{2}[:\-]){5}[a-z0-9]{2}/ig;
+    var zeroRegex = /(?:[0]{2}[:\-]){5}[0]{2}/;
+    var command   = (process.platform.indexOf('win') === 0) ? "getmac" : "ifconfig || ip link";
+
+    require('child_process').exec(command, function(err, stdout, stderr) {
+        if (err) {
+            callback(err);
+        } else {
+            var macAddress;
+            var match;
+            var result = null;
+
+            while (match = macRegex.exec(stdout)) {
+                macAddress = match[0];
+                if (!zeroRegex.test(macAddress) && !result) result = macAddress;
+            }
+
+            if (result === null) {
+                callback(new Error('could not determine the mac address from:\n' + data));
+            } else {
+                callback(null, result.replace(/-/g, ':').toLowerCase());
+            }
+        }
+    });
+}
+
 // Build unique uuid based on MAC address if possible
-function uuid(isMac) {
-    var mac = '';
+function uuid(givenMac, callback) {
+    if (typeof givenMac == 'function') {
+        callback = givenMac;
+        givenMac = '';
+    }
+
+    var mac = (givenMac !== null) ? (givenMac || '') : null;
     var u;
-    if (isMac) {
+
+    if (mac === '') {
         var ifaces = require('os').networkInterfaces();
 
         // Find first not empty MAC
@@ -2832,6 +2868,14 @@ function uuid(isMac) {
             if (mac) break;
         }
     }
+
+    if (mac === '') {
+        getMac(function(err, mac) {
+            uuid(mac || null, callback);
+        });
+        return;
+    }
+
     if (mac) {
         var md5sum = require('crypto').createHash('md5');
         md5sum.update(mac);
@@ -2848,5 +2892,5 @@ function uuid(isMac) {
         u = b;
     }
 
-    return u;
-}
+    callback(u);
+}