Fix 1148 add native node https support

.gitignore

@@ -12,3 +12,5 @@ src/static/js/jquery.js
 npm-debug.log
 *.DS_Store
 .ep_initialized
+*.crt
+*.key

settings.json.template

@@ -11,10 +11,24 @@
   // alternatively, set up a fully specified Url to your own favicon
   "favicon": "favicon.ico",
 
-  //Ip and port which etherpad should bind at
+  //IP and port which etherpad should bind at
   "ip": "0.0.0.0",
   "port" : 9001,
-
+
+  /*  
+  // Node native SSL support
+  // this is disabled by default
+  //
+  // make sure to have the minimum and correct file access permissions set
+  // so that the Etherpad server can access them
+
+  "ssl" : {
+            "key"  : "/path-to-your/epl-server.key",
+            "cert" : "/path-to-your/epl-server.crt"
+          },
+
+  */
+
   //The Type of the database. You can choose between dirty, postgres, sqlite and mysql
   //You shouldn't use "dirty" for for anything else than testing or development
   "dbType" : "dirty",

src/node/hooks/express.js

@@ -1,5 +1,4 @@
 var hooks = require("ep_etherpad-lite/static/js/pluginfw/hooks");
-var http = require('http');
 var express = require('express');
 var settings = require('../utils/Settings');
 var fs = require('fs');
@@ -50,7 +49,28 @@ exports.restartServer = function () {
   }
 
   var app = express(); // New syntax for express v3
-  server = http.createServer(app);
+
+  if (settings.ssl) {
+
+    console.log( "SSL -- enabled");
+    console.log( "SSL -- server key file: " + settings.ssl.key );
+    console.log( "SSL -- Certificate Authority's certificate file: " + settings.ssl.cert );
+
+    options = {
+      key: fs.readFileSync( settings.ssl.key ),
+      cert: fs.readFileSync( settings.ssl.cert )
+    };
+
+    var https = require('https');
+    server = https.createServer(options, app);
+
+  } else {
+
+    console.log( "SSL -- not enabled!" );
+
+    var http = require('http');
+    server = http.createServer(app);
+  }
 
   app.use(function (req, res, next) {
     res.header("Server", serverName);

src/node/utils/Settings.js

@@ -48,6 +48,13 @@ exports.ip = "0.0.0.0";
  * The Port ep-lite should listen to
  */
 exports.port = process.env.PORT || 9001;
+
+/**
+ * The SSL signed server key and the Certificate Authority's own certificate
+ * default case: ep-lite does *not* use SSL. A signed server key is not required in this case.
+ */
+exports.ssl = false;
+
 /*
  * The Type of the database
  */