added ability to use https

server.js

@@ -1,5 +1,7 @@
 var Express = require('express');
 var Http = require('http');
+var Https = require('https');
+var Fs = require('fs');
 var WebSocketServer = require('ws').Server;
 var ChainPadSrv = require('./ChainPadSrv');
 var Storage = require('./Storage');
@@ -10,15 +12,41 @@ config.websocketPort = config.websocketPort || config.httpPort;
 var app = Express();
 app.use(Express.static(__dirname + '/www'));
 
+var httpsOpts;
+if (config.privKeyAndCertFiles) {
+    var privKeyAndCerts = '';
+    config.privKeyAndCertFiles.forEach(function (file) {
+        privKeyAndCerts = privKeyAndCerts + Fs.readFileSync(file);
+    });
+    var array = privKeyAndCerts.split('\n-----BEGIN ');
+    for (var i = 1; i < array.length; i++) { array[i] = '-----BEGIN ' + array[i] }
+    var privKey;
+    for (var i = 0; i < array.length; i++) {
+        if (array[i].indexOf('PRIVATE KEY-----\n') !== -1) {
+            privKey = array[i];
+            array.splice(i, 1);
+            break;
+        }
+    }
+    if (!privKey) { throw new Error("cannot find private key"); }
+    httpsOpts = {
+        cert: array.shift(),
+        key: privKey,
+        ca: array
+    }
+}
+
 app.get('/api/config', function(req, res){
     var host = req.headers.host.replace(/\:[0-9]+/, '');
     res.setHeader('Content-Type', 'text/javascript');
     res.send('define(' + JSON.stringify({
-        websocketURL:'ws://' + host + ':' + config.websocketPort + '/cryptpad_websocket'
+        websocketURL:'ws' + ((httpsOpts) ? 's' : '') + '://' + host + ':' +
+            config.websocketPort + '/cryptpad_websocket'
     }) + ');');
 });
 
-var httpServer = Http.createServer(app);
+var httpServer = httpsOpts ? Https.createServer(httpsOpts, app) : Http.createServer(app);
+
 httpServer.listen(config.httpPort);
 console.log('listening on port ' + config.httpPort);