本地服务器的ApprtcDemo在浏览器之间工作，但不是浏览器本机的Android。

Question

我正在开发一个聊天应用程序，并完成了它。现在我也想实现视频聊天。经过大量的研究，我决定去"WebRTC“图书馆。

我做了什么？

1)能够在本地服务器上运行AppRtcDemo，并能在浏览器之间正常工作。

参考资料：http://www.webrtc.org/reference/getting-started

2)能够在运行安卓AppRtcDemo.But时说“跨源不支持”。

经过研究，我发现在webrtc的讨论中，为了解决这个问题，我需要设置自己的转服务器。

3)所以我安装了webrtc推荐的最新rfc5766TurnServer。我成功地运行了转服务器。

参考资料：http://code.google.com/p/rfc5766-turn-server/

我做了ApprtcDemo (web)和(Android)的更改，以便与我的转服务器一起工作

1) apprtc.py

取代：

turn_url = 'https://computeengineondemand.appspot.com/'
turn_url = turn_url + 'turn?' + 'username=' + user + '&key=4080218913'

指向我的转服务器：

turn_url = 'http://192.168.5.85:3478/?service=turn&username=biraj'

2) index.html

取代：

var pcConfig = {{ pc_config|safe }};

通过以下方式：

var pcConfig = {"iceServers": [{"url": "stun:stun.l.google.com:19302"},            {"url":"turn:biraj@192.168.5.85:3479", "credential":"0x5b04123c3eec4cf0be64ab909bb2ff5b"}]};

Android

1)AppRTCDemoActivity.java

取代：

roomInput.setText("https://apprtc.appspot.com/?r=");

我的本地学徒服务器：

roomInput.setText("http://192.168.5.86:8080/?r=");

2) AppRTCClient.java

private PeerConnection.IceServer requestTurnServer(String url){}函数

取代：

connection.addRequestProperty("origin", "https://apprtc.appspot.com");

通过以下方式：

connection.addRequestProperty("origin", "http://192.168.5.86:8080");

3) /assets/channel.html el.html

取代：

<script src="https://apprtc.appspot.com/_ah/channel/jsapi"></script>

通过以下方式：

<script src="http://192.168.5.86:8080/_ah/channel/jsapi"></script>

现在我的问题是，为什么这是在浏览器之间工作，而不是在安卓AppRtcDemo和浏览器之间。

当我在android上运行AppRtcDemo后，在右上角启动本地摄像机预览，并提示“等待ICEcandidates”，那么什么也不会发生。

提前谢谢。

感谢所有支持我的question.After与ApprtcDemo长期崎岖的旅程，我取得了成功，它的工作很好。我张贴的解决方案。

查找"GAEChannelClient.java“java文件。

然后做如下的改变。

/*
 * libjingle
 * Copyright 2013, Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.appspot.apprtc;

import java.io.InputStream;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.util.Log;
import android.webkit.ConsoleMessage;
import android.webkit.JavascriptInterface;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;

/**
 * Java-land version of Google AppEngine's JavaScript Channel API:
 * https://developers.google.com/appengine/docs/python/channel/javascript
 * 
 * Requires a hosted HTML page that opens the desired channel and dispatches JS
 * on{Open,Message,Close,Error}() events to a global object named
 * "androidMessageHandler".
 */
public class GAEChannelClient {
    private static final String TAG = "GAEChannelClient";
    private WebView webView;
    private final ProxyingMessageHandler proxyingMessageHandler;

    /**
     * Callback interface for messages delivered on the Google AppEngine
     * channel.
     * 
     * Methods are guaranteed to be invoked on the UI thread of |activity|
     * passed to GAEChannelClient's constructor.
     */
    public interface MessageHandler {
        public void onOpen();

        public void onMessage(String data);

        public void onClose();

        public void onError(int code, String description);
    }

    /** Asynchronously open an AppEngine channel. */
    @SuppressLint("SetJavaScriptEnabled")
    public GAEChannelClient(Activity activity, String token, MessageHandler handler) {
        webView = new WebView(activity);

        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setAllowFileAccessFromFileURLs(true); // Maybe you
                                                                    // don't
                                                                    // need this
                                                                    // rule
        webView.getSettings().setAllowUniversalAccessFromFileURLs(true);

        webView.setWebChromeClient(new WebChromeClient() { // Purely for
                                                            // debugging.
            public boolean onConsoleMessage(ConsoleMessage msg) {
                Log.d(TAG, "console: " + msg.message() + " at " + msg.sourceId() + ":" + msg.lineNumber());
                return false;
            }
        });
        webView.setWebViewClient(new WebViewClient() { // Purely for debugging.
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                Log.e(TAG, "JS error: " + errorCode + " in " + failingUrl + ", desc: " + description);
            }

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                System.out.println("HI");
                return super.shouldOverrideUrlLoading(view, url);
            }
        });

        proxyingMessageHandler = new ProxyingMessageHandler(activity, handler, token);
        webView.addJavascriptInterface(proxyingMessageHandler, "androidMessageHandler");
//       webView.loadUrl("file:///android_asset/channel.html");
        try {
            InputStream is = activity.getAssets().open("channel.html");
            StringBuilder builder = new StringBuilder();
            byte[] buffer = new byte[1024];
            while (is.read(buffer) != -1) {
                builder.append(new String(buffer));
            }
            is.close();
            String str = builder.toString();
            webView.loadDataWithBaseURL("http://192.168.5.86:8080", str, "text/html", "utf-8", null);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    /** Close the connection to the AppEngine channel. */
    public void close() {
        if (webView == null) {
            return;
        }
        proxyingMessageHandler.disconnect();
        webView.removeJavascriptInterface("androidMessageHandler");
        webView.loadUrl("about:blank");
        webView = null;
    }

    // Helper class for proxying callbacks from the Java<->JS interaction
    // (private, background) thread to the Activity's UI thread.
    private static class ProxyingMessageHandler {
        private final Activity activity;
        private final MessageHandler handler;
        private final boolean[] disconnected = { false };
        private final String token;

        public ProxyingMessageHandler(Activity activity, MessageHandler handler, String token) {
            this.activity = activity;
            this.handler = handler;
            this.token = token;
        }

        public void disconnect() {
            disconnected[0] = true;
        }

        private boolean disconnected() {
            return disconnected[0];
        }

        @JavascriptInterface
        public String getToken() {
            return token;
        }

        @JavascriptInterface
        public void onOpen() {

            System.out.println("GAEClient : Open" );
            activity.runOnUiThread(new Runnable() {
                public void run() {
                    if (!disconnected()) {
                        handler.onOpen();
                    }
                }
            });
        }

        @JavascriptInterface
        public void onMessage(final String data) {
            System.out.println("GAEClient : Message : " +data );
            activity.runOnUiThread(new Runnable() {
                public void run() {
                    if (!disconnected()) {
                        handler.onMessage(data);
                    }
                }
            });
        }

        @JavascriptInterface
        public void onClose() {
            System.out.println("GAEClient : Close" );
            activity.runOnUiThread(new Runnable() {
                public void run() {
                    if (!disconnected()) {
                        handler.onClose();
                    }
                }
            });
        }

        @JavascriptInterface
        public void onError(final int code, final String description) {
            System.out.println("GAEClient : Erroe : " + description);
            activity.runOnUiThread(new Runnable() {
                public void run() {
                    if (!disconnected()) {
                        handler.onError(code, description);
                    }
                }
            });
        }
    }
}

资产文件夹中的Channel.html

<html>
  <head>
    <script src="http://192.168.5.86:8080/_ah/channel/jsapi"></script>
  </head>
  <!--
  Helper HTML that redirects Google AppEngine's Channel API to a JS object named
  |androidMessageHandler|, which is expected to be injected into the WebView
  rendering this page by an Android app's class such as AppRTCClient.
  -->
  <body onbeforeunload="closeSocket()" onload="openSocket()">
    <script type="text/javascript">
      var token = androidMessageHandler.getToken();
      if (!token)
        throw "Missing/malformed token parameter: [" + token + "]";

      var channel = null;
      var socket = null;

      function openSocket() {
        channel = new goog.appengine.Channel(token);
        socket = channel.open({
          'onopen': function() { androidMessageHandler.onOpen(); },
          'onmessage': function(msg) { androidMessageHandler.onMessage(msg.data); },
          'onclose': function() { androidMessageHandler.onClose(); },
          'onerror': function(err) { androidMessageHandler.onError(err.code, err.description); }
        });
      }

      function closeSocket() {
        socket.close();
      }
    </script>
  </body>
</html>

Answer 1

遗憾的是，我不知道你是否做过这些事：

1. 在每个应用程序(无论是PC还是移动)上使用相同的眩晕和打开服务器。
2. 你是否甚至在申请之间发送ICE候选人(我认为你有，但只是为了核实)。
3. 您确定眩晕/转url是导致错误的原因吗?因为我不能相信这些事情会影响跨源(它们不应该，因为您只是从客户端连接到服务器。跨原点主要用于从外部源加载数据的网页上。不允许在XHR中这样做)。我真的认为这与https://apprtc.appspot.com/_ah/channel/jsapi有关，因为这是跨源的一个很好的例子。

如果您打开在移动上的铬浏览器中工作的网页怎么办？那它会做什么呢？(请注意，您可以连接您的手机到您的个人电脑，以拥有完整的开发工具铬。Chrome在你的android设备上运行，但你可以在你的电脑上看到devtools )。

如果你能给我这些答案，我也许能帮你。尝试还原所有这些更改，只使用谷歌的转服务器，但只使该https://apprtc.appspot.com/_ah/channel/jsapi文件本地。

编辑：我看你找到了答案.你介意和我分享一下吗？