From 04af828a1c09bf422f11f33261583e51d6306304 Mon Sep 17 00:00:00 2001
From: Philipp Hancke <fippo@andyet.net>
Date: Tue, 26 May 2015 09:19:47 -0700
Subject: [PATCH] firefox 38+ supports .urls for RTCIceServer

---
 adapter.js | 125 +++++++++++++++--------------------------------------
 1 file changed, 34 insertions(+), 91 deletions(-)

diff --git a/adapter.js b/adapter.js
index 61861e105..e01b908ca 100644
--- a/adapter.js
+++ b/adapter.js
@@ -21,6 +21,7 @@ var attachMediaStream = null;
 var reattachMediaStream = null;
 var webrtcDetectedBrowser = null;
 var webrtcDetectedVersion = null;
+var webrtcMinimumVersion = null;
 
 function trace(text) {
   // This function is used for logging.
@@ -40,18 +41,38 @@ if (navigator.mozGetUserMedia) {
 
   webrtcDetectedBrowser = 'firefox';
 
+  // the detected firefox version.
   webrtcDetectedVersion =
     parseInt(navigator.userAgent.match(/Firefox\/([0-9]+)\./)[1], 10);
 
+  // the minimum firefox version still supported by adapter.
+  webrtcMinimumVersion = 31;
+
   // The RTCPeerConnection object.
   RTCPeerConnection = function(pcConfig, pcConstraints) {
-    // .urls is not supported in FF yet.
-    if (pcConfig && pcConfig.iceServers) {
-      for (var i = 0; i < pcConfig.iceServers.length; i++) {
-        if (pcConfig.iceServers[i].hasOwnProperty('urls')) {
-          pcConfig.iceServers[i].url = pcConfig.iceServers[i].urls;
-          delete pcConfig.iceServers[i].urls;
+    if (webrtcDetectedVersion < 38) {
+      // .urls is not supported in FF < 38.
+      // create RTCIceServers with a single url.
+      if (pcConfig && pcConfig.iceServers) {
+        var newIceServers = [];
+        for (var i = 0; i < pcConfig.iceServers.length; i++) {
+          var server = pcConfig.iceServers[i];
+          if (server.hasOwnProperty('urls')) {
+            for (var j = 0; j < server.urls.length; j++) {
+              var newServer = {
+                url: server.urls[j]
+              };
+              if (server.urls[j].indexOf('turn') === 0) {
+                newServer.username = server.username;
+                newServer.credential = server.credential;
+              }
+              newIceServers.push(newServer);
+            }
+          } else {
+            newIceServers.push(pcConfig.iceServers[i]);
+          }
         }
+        pcConfig.iceServers = newIceServers;
       }
     }
     return new mozRTCPeerConnection(pcConfig, pcConstraints);
@@ -79,55 +100,6 @@ if (navigator.mozGetUserMedia) {
     }, 0);
   };
 
-  // Creates ICE server from the URL for FF.
-  window.createIceServer = function(url, username, password) {
-    var iceServer = null;
-    var urlParts = url.split(':');
-    if (urlParts[0].indexOf('stun') === 0) {
-      // Create ICE server with STUN URL.
-      iceServer = {
-        'url': url
-      };
-    } else if (urlParts[0].indexOf('turn') === 0) {
-      if (webrtcDetectedVersion < 27) {
-        // Create iceServer with turn url.
-        // Ignore the transport parameter from TURN url for FF version <=27.
-        var turnUrlParts = url.split('?');
-        // Return null for createIceServer if transport=tcp.
-        if (turnUrlParts.length === 1 ||
-          turnUrlParts[1].indexOf('transport=udp') === 0) {
-          iceServer = {
-            'url': turnUrlParts[0],
-            'credential': password,
-            'username': username
-          };
-        }
-      } else {
-        // FF 27 and above supports transport parameters in TURN url,
-        // So passing in the full url to create iceServer.
-        iceServer = {
-          'url': url,
-          'credential': password,
-          'username': username
-        };
-      }
-    }
-    return iceServer;
-  };
-
-  window.createIceServers = function(urls, username, password) {
-    var iceServers = [];
-    // Use .url for FireFox.
-    for (var i = 0; i < urls.length; i++) {
-      var iceServer =
-        window.createIceServer(urls[i], username, password);
-      if (iceServer !== null) {
-        iceServers.push(iceServer);
-      }
-    }
-    return iceServers;
-  };
-
   // Attach a media stream to an element.
   attachMediaStream = function(element, stream) {
     console.log('Attaching media stream');
@@ -143,43 +115,13 @@ if (navigator.mozGetUserMedia) {
   console.log('This appears to be Chrome');
 
   webrtcDetectedBrowser = 'chrome';
-  // Temporary fix until crbug/374263 is fixed.
-  // Setting Chrome version to 999, if version is unavailable.
-  var result = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
-  if (result !== null) {
-    webrtcDetectedVersion = parseInt(result[2], 10);
-  } else {
-    webrtcDetectedVersion = 999;
-  }
 
-  // Creates iceServer from the url for Chrome M33 and earlier.
-  window.createIceServer = function(url, username, password) {
-    var iceServer = null;
-    var urlParts = url.split(':');
-    if (urlParts[0].indexOf('stun') === 0) {
-      // Create iceServer with stun url.
-      iceServer = {
-        'url': url
-      };
-    } else if (urlParts[0].indexOf('turn') === 0) {
-      // Chrome M28 & above uses below TURN format.
-      iceServer = {
-        'url': url,
-        'credential': password,
-        'username': username
-      };
-    }
-    return iceServer;
-  };
+  // the detected chrome version.
+  webrtcDetectedVersion =
+    parseInt(navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)[2], 10);
 
-  // Creates an ICEServer object from multiple URLs.
-  window.createIceServers = function(urls, username, password) {
-    return {
-      'urls': urls,
-      'credential': password,
-      'username': username
-    };
-  };
+  // the minimum chrome version still supported by adapter.
+  webrtcMinimumVersion = 38;
 
   // The RTCPeerConnection object.
   RTCPeerConnection = function(pcConfig, pcConstraints) {
@@ -229,7 +171,8 @@ if (typeof module !== 'undefined') {
     attachMediaStream: attachMediaStream,
     reattachMediaStream: reattachMediaStream,
     webrtcDetectedBrowser: webrtcDetectedBrowser,
-    webrtcDetectedVersion: webrtcDetectedVersion
+    webrtcDetectedVersion: webrtcDetectedVersion,
+    webrtcMinimumVersion: webrtcMinimumVersion
     //requestUserMedia: not exposed on purpose.
     //trace: not exposed on purpose.
   };