Webrtc服务器搭建(基于公网环境)
webrtc服务器环境搭建
(基于公网环境)
Last Modified Date: 2017/8/2
目录
1. 搭建平台
2. 软件安装
3. 搭建房间服务器(Room Server)
4. 搭建信令服务器(Collider Server)
5. 搭建STUN\TURN服务器
6. 配置Nginx服务器
7. 运行测试
8. 附录
1. 搭建平台
- 操作系统： Ubuntu 16.04 server(64bits)
- Google webrtc的服务器Demo：详见https://github.com/webrtc/apprtc
- 域名： webrtc.olcms.com
- IP地址： 需要是公网地址
2. 软件安装
- 安装JDK：
add-apt-repository ppa:openjdk-r/ppa
apt-get update
apt-get install openjdk-8-jdk- 安装nodejs相关包：
apt-get install nodejs
apt-get install npm
apt-get install nodejs-legacy
npm -g install grunt-cli- 安装Python和Python-webtest：
apt-get install python
apt-get install python-webtest注： 若已安装过上述软件，可忽略；如上述未提及的软件需要安装，请自行安装。
3. 搭建房间服务器(Room Server)
- 下载apprtc源码（操作所在目录/root/）
git clone https://github.com/webrtc/apprtc.git
cd apprtc
npm install若npm install报错，请自行解决。
- 修改文件
1.修改/root/apprtc/src/app_engine/constants.py
TURN_BASE_URL = 'https://webrtc.olcms.com'; #本机域名webrtc.olcms.com
TURN_URL_TEMPLATE = '%s/turn.php?username=%s&key=%s'; #如果turn.php未实现，可使用默认配置
CEOD_KEY = 'inesadt' #此处后面turn配置的用户名保持一致
ICE_SERVER_BASE_URL = 'https://webrtc.olcms.com';
ICE_SERVER_URL_TEMPLATE = '%s/iceconfig.php?key=%s'; #如果iceconfig.php未实现，可用默认配置，但是Android Apk会有问题
WSS_INSTANCE_HOST_KEY = 'webrtc.olcms.com:8089' #信令服务器端口号8089
WSS_INSTANCE_NAME_KEY = 'vm_name'
WSS_INSTANCE_ZONE_KEY = 'zone'
WSS_INSTANCES = [{
WSS_INSTANCE_HOST_KEY: 'webrtc.olcms.com:8089',
WSS_INSTANCE_NAME_KEY: 'wsserver-std',
WSS_INSTANCE_ZONE_KEY: 'us-central1-a'
}, {
WSS_INSTANCE_HOST_KEY: 'webrtc.olcms.com:8089',
WSS_INSTANCE_NAME_KEY: 'wsserver-std-2',
WSS_INSTANCE_ZONE_KEY: 'us-central1-f'
}]- 编译（在apprtc目录下进行）
grunt build编译完成之后，会生成out目录，房间服务器编译完成。
注（编译成功可忽略）：此处编译需要，若编译时无法，可下载手动下载https://api.callstats.io/static/callstats.min.js，并把文件callstats.min.js放到目录/root/apprtc/out/app_engine/third_party/callstats/下。然后修改/root/apprtc/build/build_app_engine_package.py文件：
# Download callstats.
......
......
response = requests.get(urls[fileName])
#if response.status_code == 200: #把此处注释掉
print 'Downloading %s to %s...' % (urls[fileName], path)
with open(path + fileName, 'w') as to_file:
to_file.write(response.text)
#else: #把此处注释掉
# raise NameError('Could not download: ' + filename + ' Error:' + \ #把此处注释掉
#str(response.status_code)) #把此处注释掉 然后继续进行编译即可。
安装和配置google app engine
1.下载google app engine
需，下载地址https://storage.googleapis.com/appengine-sdks/featured/google_appengine_1.9.50.zip)，或者通过其他地方下载。2.配置google app engine 路径
解压google_appengine_1.9.50.zip
unzip google_appengine_1.9.50.zip 编辑/etc/profile文件，在文件最后添加语句：
export PATH="$PATH:/root/google_appengine/"（当前安装目录是/root/google_appengine,请根据自己的安装目录进行配置）
保存profile文件，进行以下操作生效
source /etc/profile- 运行房间服务器（room server)
在目录/root/google_appengine目录下找到dev_appserver.py脚本,执行以下语句
./dev_appserver.py --host=webrtc.olcms.com /root/apprtc/out/app_engine若想后台运行，则执行
nohup ./dev_appserver.py --host=webrtc.olcms.com /root/apprtc/out/app_engine &在浏览器中访问房间服务器
https://webrtc.olcms.com
4. 搭建信令服务器(Collider Server)
- 安装go语言编译器
apt-get install golang-go- 复制collider源代码
（此源码在房间服务器源码目录下/root/apprtc/src/collider/)
在/root目录下新建文件夹
mkdir -p goWorkspace/src配置编译环境，此配置是暂时有效的
export GOPATH=/root/goWorkspace/把/root/apprtc/src/collider/目录下的三个目录（collider、collidermain、collidertest）复制到/root/goWorkspace/src/目录下
cp -rf /root/apprtc/src/collider/* /root/goWorkspace/src- 修改代码
1.编辑文件/root/goWorkspace/src/collidermain/main.go，修改房间服务器的地址
var roomSrv = flag.String("room-server", "https://webrtc.olcms.com", "The origin of the room server")2.编辑文件/root/goWorkspace/src/collider/collider.go，修改下面这句：
e = server.ListenAndServeTLS("/cert/cert.pem", "/cert/key.pem")修改为
e = server.ListenAndServeTLS("/etc/letsencrypt/live/webrtc.olcms.com/fullchain.pem", "/etc/letsencrypt/live/webrtc.olcms.com/privkey.pem")其中fullchain.pem和privkey.pem为SSL证书，具体证书路径根据实际路径进行配置，SSL证书生成见后续Nginx配置。
- 编译信令服务器
进入目录/root/goWorkspace/src/,此处编译需要。
go get collidermain
go install collidermain编译成功后，在/root/goWorkspace/下会生成bin和pkg目录。
若此处编译时无法，可手动下载需要的文件。在/root/goWorkspace/src/目录下，
mkdir -p golang.org/x
cd golang.org/x/
git clone https://github.com/golang/net然后再进行编译即可。
- 运行信令服务器
进入/root/goWorkspace/bin/目录，运行信令服务器
./collidermain -port=8089 -tls=true若想后台运行，则执行
nohup ./collidermain -port=8089 -tls=true &5. 搭建STUN\TURN服务器
- 安装coturn
apt-get install coturn- 进行相关配置
- 编辑文件/etc/default/coturn,把TURNSERVER_ENABLED=1的注释去掉。
- 编辑文件/etc/turnserver.conf,把以下内容加入到文件最后（或者在文件中找到相应的选项，进行配置）
listening-device=eth0 #此处eth0是电脑网卡名称
listening-port=3478 #turn服务器的端口号
relay-device=eth0 #此处eth0是电脑网卡名称
min-port=49152
max-port=65535
Verbose
fingerprint
lt-cred-mech
use-auth-secret
static-auth-secret=inesadt #此处要和房间服务器配置时constants.py文件中的CODE_KEY保持一致。
user=inesadt:0x7e3a2ed35d3cf7f19e2f8b015a186f54
user=inesadt:inesadt
stale-nonce
cert=/usr/local/etc/turn_server_cert.pem
pkey=/usr/local/etc/turn_server_pkey.pem
no-loopback-peers
no-multicast-peers
mobility
no-cli上述文件中 0x7e3a2ed35d3cf7f19e2f8b015a186f54的生成方法：
turnadmin -k -u inesadt -r north.gov -p inesadt
-k 表示生成一个long-term credential key
-u 表示用户名
-p 表示密码
-r 表示Realm域，（这个值的设置可能会有影响）。
coturn的证书生成（即配置文件中cert和pkey)
sudo openssl req -x509 -newkey rsa:2048 -keyout /usr/local/etc/turn_server_pkey.pem –out /usr/local/etc/turn_server_cert.pem -days 99999 –nodes- 启动coturn服务器
service coturn start6. 配置Nginx服务器
- 安装Nginx
apt-get install nginx- 配置Nginx
编辑配置文件/etc/nginx/sites-available/default
server {
listen 80 default_server;
listen [::]:80 default_server;
# SSL configuration
#
# listen 443 ssl default_server;
# listen [::]:443 ssl default_server;
#
# Note: You should disable gzip for SSL traffic.
# See: https://bugs.debian.org/773332
#
# Read up on ssl_ciphers to ensure a secure configuration.
# See: https://bugs.debian.org/765782
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
# include snippets/snakeoil.conf;
root /var/www/html;
# Add index.php to the list if you are using PHP
index index.html index.htm index.nginx-debian.html;
server_name webrtc.olcms.com; #添加域名，如不添加，生成SSL证书时可能会有问题
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ =404;
}
.....
....
}生成SSL证书
1.使用let’s encrypt颁发的免费SSL证书，安装软件
sudo apt-get update
apt-get install software-properties-common
add-apt-repository ppa:certbot/certbot
apt-get update
apt-get install python-certbot-nginx2.生成SSL证书
certbot --nginx certonlySSL证书生成的目录/etc/letsencrypt/live/webrtc.olcms.com/,下面会有四个证书（cert.pem,chain.pem,fullchain.pem,privkey.pem）
PS：详见https://certbot.eff.org/#ubuntuxenial-nginx
- 安装php和php-fpm
apt-get install php
apt-get install php7.0-fpm- 编辑配置文件/etc/nginx/sites-available/default
upstream roomserver {
server 114.215.131.216:8080;
}
server {
listen 80 ;
server_name webrtc.olcms.com;
return 301 https://$server_name$request_uri;
}
server {
# listen 80 default_server;
# listen [::]:80 default_server;
# SSL configuration
#
# listen 443 ssl default_server;
# listen [::]:443 ssl default_server;
listen 443;
#
# Note: You should disable gzip for SSL traffic.
# See: https://bugs.debian.org/773332
#
# Read up on ssl_ciphers to ensure a secure configuration.
# See: https://bugs.debian.org/765782
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
# include snippets/snakeoil.conf;
root /var/www/html;
# Add index.php to the list if you are using PHP
index index.html index.htm index.nginx-debian.html index.php; #此处添加index.php
server_name webrtc.olcms.com;
# location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
# try_files $uri $uri/ =404;
# }
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
include snippets/fastcgi-php.conf;
# With php7.0-cgi alone:
#fastcgi_pass 127.0.0.1:9000;
# With php7.0-fpm:
fastcgi_pass unix:/run/php/php7.0-fpm.sock;
}
location / {
proxy_pass http://roomserver$request_uri;
proxy_set_header Host $host;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
ssl on;
ssl_certificate /etc/letsencrypt/live/webrtc.olcms.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/webrtc.olcms.com/privkey.pem;
}- 编写turn.php文件和iceconfig.php文件，并把文件放到目录/var/www/html/目录下
turn.php文件内容
$request_username = $_GET["username"];
if(empty($request_username)) {
echo "username == null";
exit;
}
$request_key = $_GET["key"];
$time_to_live = 600;
$timestamp = time() + $time_to_live;//失效时间
$response_username = $timestamp.":".$_GET["username"];
$response_key = $request_key;
if(empty($response_key))
$response_key = "code_key"; //constants.py中CEOD_KEY
$response_password = getSignature($response_username, $response_key);
$jsonObj = new Response();
$jsonObj->username = $response_username;
$jsonObj->password = $response_password;
$jsonObj->ttl = 86400;
//此处需配置自己的服务器
$jsonObj->uris= array("stun:webrtc.olcms.com:3478","turn:webrtc.olcms.com:3478?transport=udp","turn:webrtc.olcms.com?transport=tcp");
echo json_encode($jsonObj);
/**
* 使用HMAC-SHA1算法生成签名值
*
* @param $str 源串
* @param $key 密钥
*
* @return 签名值
*/
function getSignature($str, $key) {
$signature = "";
if (function_exists('hash_hmac')) {
$signature = base64_encode(hash_hmac("sha1", $str, $key, true));
} else {
$blocksize = 64;
$hashfunc = 'sha1';
if (strlen($key) > $blocksize) {
$key = pack('H*', $hashfunc($key));
}
$key = str_pad($key, $blocksize, chr(0x00));
$ipad = str_repeat(chr(0x36), $blocksize);
$opad = str_repeat(chr(0x5c), $blocksize);
$hmac = pack(
'H*', $hashfunc(
($key ^ $opad) . pack(
'H*', $hashfunc(
($key ^ $ipad) . $str
)
)
)
);
$signature = base64_encode($hmac);
}
return $signature;
}
class Response {
public $username = "";
public $password = "";
public $ttl = "";
public $uris = array("");
}
?> iceconfig.php文件内容
$request_username = "inesadt"; //配置成自己的turn服务器用户名
if(empty($request_username)) {
echo "username == null";
exit;
}
$request_key = "inesadt"; //配置成自己的turn服务器密码
$time_to_live = 600;
$timestamp = time() + $time_to_live;//失效时间
$response_username = $timestamp.":".$_GET["username"];
$response_key = $request_key;
if(empty($response_key))
$response_key = "CEOD_KEY";//constants.py中CEOD_KEY
$response_password = getSignature($response_username, $response_key);
$arrayObj = array();
$arrayObj[0]['username'] = $response_username;
$arrayObj[0]['credential'] = $response_password;
//配置成自己的stun/turn服务器
$arrayObj[0]['urls'][0] = "stun:webrtc.olcms.com:3478";
$arrayObj[0]['urls'][1] = "turn:webrtc.olcms.com:3478?transport=tcp";
$arrayObj[0]['uris'][0] = "stun:webrtc.olcms.com:3478";
$arrayObj[0]['uris'][1] = "turn:webrtc.olcms.com:3478?transport=tcp";
$jsonObj = new Response();
$jsonObj->lifetimeDuration = "300.000s";
$jsonObj->iceServers = $arrayObj;
echo json_encode($jsonObj);
/**
* 使用HMAC-SHA1算法生成签名值
*
* @param $str 源串
* @param $key 密钥
*
* @return 签名值
*/
function getSignature($str, $key) {
$signature = "";
if (function_exists('hash_hmac')) {
$signature = base64_encode(hash_hmac("sha1", $str, $key, true));
} else {
$blocksize = 64;
hashfunc = 'sha1';
if (strlen($key) > $blocksize) {
$key = pack('H*', $hashfunc($key));
}
$key = str_pad($key, $blocksize, chr(0x00));
$ipad = str_repeat(chr(0x36), $blocksize);
$opad = str_repeat(chr(0x5c), $blocksize);
$hmac = pack(
'H*', $hashfunc(
($key ^ $opad) . pack(
'H*', $hashfunc(
($key ^ $ipad) . $str
)
)
)
);
$signature = base64_encode($hmac);
}
return $signature;
}
class Response {
public $lifetimeDuration = "";
public $iceServers = array("");
}
?>- 重启Nginx服务器和php7.0-fpm
service nginx restart
service php7.0-fpm restart7. 运行测试
PC浏览器（Android手机浏览器）之间的视频通信测试
访问 https://webrtc.olcms.com
1.PC浏览器：Firefox 54.0.1(64bits)，Android手机浏览器：Firefox 54.0.1测试OK
2.PC浏览器：Google Chrome 59.0.3071.115(64bits)，Android手机浏览器：Google Chrome 59.0.3071.125
测试OK
Android APK客户端之间以及客户端与浏览器之间
1.获取Android APK下载webrtc源码，在源码目录下webrtc/examples/androidapp，进行编译即可生成Android APK
2.测试Android APK客户端之间
测试OK
3.测试Android APK客户端与浏览器（Chrome、Firefox)之间
测试OK
附录
- 运行过程中的问题
-
- Failed to start signaling: Failed to execute ‘pushState’ on ‘History’: A history state object with URL ‘http://192.168.6.54/r/198676628’ cannot be created in a document with origin ‘https://192.168.6.54’ and URL ‘https://192.168.6.54/
解决方法1：
房间服务器编译完成后，在/root/apprtc/out/app_engine/js/apprtc.debug.js文件中找到window.history.pushState({‘roomId’: roomId, ‘roomLink’: roomLink}, roomId, roomLink)，把这句话注释掉，重新运行即可。（如果重新编译，需要重新修改）解决方法2：
在/root/apprtc/src/web_app/js/appcontroller.js文件中找到window.history.pushState({‘roomId’: roomId, ‘roomLink’: roomLink}, roomId, roomLink)，把这句话注释掉，然后重新编译，重新运行房间服务器即可。
回到目录
参考：
1.http://io.diveinedu.com/2015/02/05/%E7%AC%AC%E5%85%AD%E7%AB%A0-WebRTC%E6%9C%8D%E5%8A%A1%E5%99%A8%E6%90%AD%E5%BB%BA.html
2. http://www.jianshu.com/p/3a43233b9c39