几周以来，我一直在尝试使用 apprtc 在原生 android 应用程序 ( https://github.com/njovy/AppRTCDemo) 和浏览器之间建立网络会话。该应用程序在使用 appr.tc 作为房间服务器 url 时运行良好。我已经在 Ubuntu 上设置了 apprtc 项目，并且能够在 Ubuntu 机器上的浏览器和我的移动设备的浏览器之间创建一个会议。但是当我尝试在 ubuntu 上的浏览器和应用程序之间建立连接时，我总是收到以下错误：
Room IO error: java.io.IOException:
Non-200 response when requesting
TURN server from https://
networktraversal.googleapis.com/
v1alpha/iceconfig?key=none : HTTP/
1.1 400 Bad Request
错误消息中提到的 URL 定义在 src/app_engine/constants.py ( https://github.com/webrtc/apprtc/blob/master/src/app_engine/constants.py) 中。但我不知道该怎么办
# TODO(jansson): Remove once AppRTCDemo on iOS supports ICE_SERVER.
TURN_BASE_URL = 'https://computeengineondemand.appspot.com'
TURN_URL_TEMPLATE = '%s/turn?username=%s&key=%s'
CEOD_KEY = '4080218913'
ICE_SERVER_BASE_URL = 'https://networktraversal.googleapis.com'
ICE_SERVER_URL_TEMPLATE = '%s/v1alpha/iceconfig?key=%s'
ICE_SERVER_API_KEY = os.environ.get('ICE_SERVER_API_KEY')
CALLSTATS_PARAMS = {
'appId': os.environ.get('CALLSTATS_APP_ID'),
'appSecret': os.environ.get('CALLSTATS_APP_SECRET')
}
那么到目前为止我做了什么？（差不多就是 apprtc 的部署过程https://github.com/webrtc/apprtc#deployment）
- 从 git 下载最新版本的 apprtc
- 安装了 npm、nodejs 和 grunt
- 使用 grunt build 构建源代码
- 下载、安装和配置碰撞器（碰撞器在 rtc:8089 上运行）
- 4.1 我不得不将workspace/src/collidermain中的main.go
从： var roomSrv = flag.String("room-server", "hxxps://appr.tc", "The origin of the room server")
更改为: var roomSrv = flag.String("room-server", "hxxp://rtc", "房间服务器的来源")- 4.2 还将 src/app_engine/constants.py 中的 WS_INSTANCE_HOST_KEY 更改为对撞机地址 rtc:8089
- 我安装了 CoTurn 并添加了一个 turnserver.conf，看起来像 listener
-port=3478 listener
-ip=192.168.178.20
user=rtc:webrtc
cert=/home/rtc/work/src/collider/cert/cert.pem
pkey=/主页/rtc/work/src/collider/cert/key.pem
Collider 运行在 192.168.178.20:8089（或 rtc:8089）上，turnserver 运行在 192.168.178.20:3478 上。turnserver.conf 中定义的凭据：用户名 = rtc，密码 = webrtc
设置后，我将 requestIceServers-Method 添加到 src/web_app/js/util.js ( https://github.com/webrtc/apprtc/blob/master/src/web_app/js/util.js)
function requestIceServers(iceServerRequestUrl, iceTransports) {
return new Promise(function(resolve, reject) {
var servers = [{
credential: "webrtc",
username: "rtc",
urls: [
"turn:192.168.178.20:3478?transport=udp",
"turn:192.168.178.20:3478?transport=tcp"
]
}];
resolve(servers);
});
}
并注释掉标准方法：
//function requestIceServers(iceServerRequestUrl, iceTransports) {
//return new Promise(function(resolve, reject) {
//sendAsyncUrlRequest('POST', iceServerRequestUrl).then(function(response) {
//var iceServerRequestResponse = parseJSON(response);
//if (!iceServerRequestResponse) {
//reject(Error('Error parsing response JSON: ' + response));
//return;
//}
//if (iceTransports !== '') {
//filterIceServersUrls(iceServerRequestResponse, iceTransports);
//}
//trace('Retrieved ICE server information.');
//resolve(iceServerRequestResponse.iceServers);
//}).catch(function(error) {
//reject(Error('ICE server request error: ' + error.message));
//return;
//});
//});
//}
当我现在启动我的 GAE 时，我的转向服务器和对撞机
python ~/google_appengine/dev_appserver.py ~/google_projects/apprtc-master/out/app_engine --host=0.0.0.0
sudo turnserver -a -r 192.168.178.20
$GOPATH/bin/collidermain -port=8089 -tls=false
我能够在两个浏览器客户端之间建立连接（来自对撞机终端的日志）
rtc@rtc:~$ $GOPATH/bin/collidermain -port=8089 -tls=false
2016/11/05 00:07:32 Starting collider: tls = false, port = 8089, room-server=http://rtc
2016/11/05 00:10:24 Created room stackoverflow
2016/11/05 00:10:24 Added client 97869213 to room stackoverflow
2016/11/05 00:10:24 Client 97869213 registered in room stackoverflow
2016/11/05 00:10:57 Added client 96368166 to room stackoverflow
2016/11/05 00:10:57 Client 96368166 registered in room stackoverflow
2016/11/05 00:10:57 Sent queued messages from 97869213 to 96368166
2016/11/05 00:11:09 Deregistered client 96368166 from room stackoverflow
2016/11/05 00:11:09 Removed client 96368166 from room stackoverflow
2016/11/05 00:11:19 Removing client 96368166 from room stackoverflow due to timeout
当我现在尝试通过本机应用程序连接时，我总是收到上述错误。
经过调查，我在 git 上找到了以下链接，但对我没有太大帮助：https://github.com/webrtc/apprtc/issues/366
所以我决定使用 constants.py ( https://github.com/webrtc/apprtc/blob/master/src/app_engine/constants.py) 并找到一个可以覆盖 Turn/Stun 服务器的地方
# Turn/Stun server override. This allows AppRTC to connect to turn servers
# directly rather than retrieving them from an ICE server provider.
TURN_SERVER_OVERRIDE = []
# Enable by uncomment below and comment out above, then specify turn and stun
# servers below.
#TURN_SERVER_OVERRIDE = [
# {
# "urls": [
# "turn:192.168.178.20:3478?transport=udp",
# "turn:192.168.178.20:3478?transport=tcp"
# ],
# "username": "rtc",
# "credential": "webrtc"
# },
# {
# "urls": [
# "stun:stun.l.google.com:19305"
# ]
# }
#]
所以我注释掉了 TURN_SERVER_OVERRIDE = []
GAE 认识到应用程序有一个新的请求。它记录
INFO 2016-11-05 00:06:31,649 apprtc.py:408] Added client 50600142 in room stackoverflow, retries = 0
INFO 2016-11-05 00:06:31,650 apprtc.py:92] Applying media constraints: {'video': True, 'audio': True}
WARNING 2016-11-05 00:06:31,653 apprtc.py:136] Invalid or no value returned from memcache, using fallback: null
INFO 2016-11-05 00:06:31,653 apprtc.py:551] User 50600142 joined room stackoverflow
INFO 2016-11-05 00:06:31,653 apprtc.py:552] Room stackoverflow has state ['50600142']
INFO 2016-11-05 00:06:31,658 module.py:788] default: "POST /join/stackoverflow?wstls=false HTTP/1.1" 200 1175
但仍然抛出同样的错误。
由于这也不起作用，我尝试将转服务器地址插入 ICE_SERVER_BASE_URL（仍在 constants.py 中）
ICE_SERVER_BASE_URL = 'https://networktraversal.googleapis.com'
ICE_SERVER_URL_TEMPLATE = '%s/v1alpha/iceconfig?key=%s'
ICE_SERVER_API_KEY = os.environ.get('ICE_SERVER_API_KEY')
变成
ICE_SERVER_BASE_URL = '192.168.178.20:3478'
ICE_SERVER_URL_TEMPLATE = ''
ICE_SERVER_API_KEY = os.environ.get('ICE_SERVER_API_KEY')
这将错误更改为：
Connection error
Non-200 response to POST to URL:
http://rtc:8080/join/stackoverflow=wstls=false : HTTP/1.1 500 Internal
Server Error
但现在我不再能够从浏览器打开主机。因此，我想这可能是完全错误的。
- 您知道如何使用本机应用程序建立会议吗？
- 如何绕过可能导致错误的 networktraversal.googleapis.com URL？
- 我必须绕过它吗？
提前致谢！