Centos-下安装-WebRTC

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一、环境安装

  1. 安装 java

    yum -y install java-1.8.0-openjdk*

  2. 安装 node.js

    curl -sL https://rpm.nodesource.com/setup_10.x | bash -
yum install -y nodejs
# 确认是否成功
node --version
npm --version

# 构建 apprtc 用到
npm -g install grunt-cli
grunt --version

  3. 安装 python 和 python-webtest

    # 安装 epel 扩展源
yum -y install epel-release
yum install python python-webtest python-pip
pip install --upgrade pip

  4. 安装 google_appengine

    mkdir /root/webrtc
cd /root/webrtc

wget https://storage.googleapis.com/appengine-sdks/featured/google_appengine_1.9.40.zip

# 安装 unzip 解压工具
yum -y install unzip 

unzip google_appengine_1.9.40.zip

    配置环境变量，在 /etc/profile 文件最后增加下列代码：

    export GOOGLE_ENGINE_HOME=/root/webrtc/google_appengine
export PATH=$PATH:$GOOGLE_ENGINE_HOME

    使环境变量生效 

    source /etc/profile

  5. 安装 go

    yum -y install go    #安装 Golang

    创建 go 工作目录 

    mkdir -p /root/webrtc/goWorkspace/src

    在 /etc/profile 文件增加 

    export GOPATH=/root/webrtc/goWorkspace

    保存退出后执行：

    source /etc/profile

  6. 安装 libevent (给穿透服务器用的)

    # 当前目录 /root/webrtc/
# https://github.com/coturn/coturn/wiki/CoturnConfig
cd /root/webrtc/
wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
tar xvf libevent-2.0.21-stable.tar.gz
cd libevent-2.0.21-stable
./configure
make install

  7. 安装 apprtc

    # 当前目录 /root/webrtc/
cd /root/webrtc/
git clone https://github.com/webrtc/apprtc.git
# 将 collider 的源码软连接到 go 的工作目录下 (ln -s 软链接，快捷方式)
ln -s /root/webrtc/apprtc/src/collider/collider $GOPATH/src
ln -s /root/webrtc/apprtc/src/collider/collidermain $GOPATH/src
ln -s /root/webrtc/apprtc/src/collider/collidertest $GOPATH/src

    编译安装 collidermain（需要翻墙）

    go get collidermain
go install collidermain

  8. 安装 coturn

    # 当前目录 /root/webrtc/
# https://github.com/coturn/coturn/wiki/Downloads
cd /root/webrtc/
wget http://coturn.net/turnserver/v4.5.0.7/turnserver-4.5.0.7.tar.gz
tar xvfz turnserver-4.5.0.7.tar.gz
cd turnserver-4.5.0.7
yum groupinstall "Development Tools"
yum -y install openssl-devel
./configure
make install

二、参数配置以及运行服务

目前服务全部安装在同一台服务器上面，内网 ip: 192.168.3.51，如果有外网 ip, 可自行更改配置。
如果要开发 android 端，服务器最好能配上域名和一个与之对应认证的 SSL 证书。

  1. coturn Nat 穿透服务器 

    # 启动 (内网 ip) 
# 账号 tina 密码:12345 这一步随便给，但是后面配置 apprtc 时需要用到
# 命令后加 & , 执行起来后按 ctr+c, 不会停止
nohup turnserver -L 192.168.3.51 -a -u shepherd:123456 -v -f -r nort.gov > /root/webrtc/turnserver.log 2>&1 &

    检查端口确定服务是否正常 

    netstat -ntulp |grep turnserver

    输出 3478 与 5766 端口 

    tcp        0      0 192.168.3.51:3478      0.0.0.0:*               LISTEN      12412/turnserver
tcp        0      0 127.0.0.1:5766          0.0.0.0:*               LISTEN      12412/turnserver
udp        0      0 192.168.3.51:3478      0.0.0.0:*                           12412/turnserver
udp        0      0 192.168.3.51:3478      0.0.0.0:*                           12412/turnserver
udp        0      0 192.168.3.51:3478      0.0.0.0:*                           12412/turnserver
udp        0      0 192.168.3.51:3478      0.0.0.0:*                           12412/turnserver

  2. collider 信令服务（拥有外网地址）

    配置防火墙，允许访问 8089 端口（tcp，用于客户端和 collider 建立 websocket 信令通信）

    # 创建自签名的数字证书
#如果没有 openssl, 需要安装
mkdir -p /cert
cd /cert
# CA 私钥
openssl genrsa -out key.pem 2048 
# 自签名证书
openssl req -new -x509 -key key.pem -out cert.pem -days 1095
nohup $GOPATH/bin/collidermain -port=8089 -tls=true -room-server="http://192.168.3.51:8080" > /root/webrtc/collidermain.log 2>&1 &

    检查端口 

    netstat -ntulp | grep collider

    输出 8089 端口 

    tcp6       0      0 :::8089                 :::*                    LISTEN      12827/collidermain

  3. apprtc 房间服务器（8080 端口为房间服务，8000 端口为管理员服务）

    3.1 修改配置文件（主要是配置 apprtc 对应的 conturn 和 collider 相关参数）

    vim /root/webrtc/apprtc/src/app_engine/constants.py
    #ICE_SERVER_OVERRIDE = None
# Enable by uncomment below and comment out above, then specify turn and stun
ICE_SERVER_OVERRIDE  = [
   {
    "urls": [
        "turn:192.168.3.51:3478?transport=udp",
        "turn:192.168.3.51:3478?transport=tcp"
     ],
     "username": "shepherd",
     "credential": "123456"
    }
]

ICE_SERVER_BASE_URL = 'https://192.168.3.51'
ICE_SERVER_URL_TEMPLATE = '%s/v1alpha/iceconfig?key=%s'
ICE_SERVER_API_KEY = os.environ.get('ICE_SERVER_API_KEY')

# Dictionary keys in the collider instance info constant.
WSS_INSTANCE_HOST_KEY = '192.168.3.51:8089'
WSS_INSTANCE_NAME_KEY = 'vm_name'
WSS_INSTANCE_ZONE_KEY = 'zone'
WSS_INSTANCES = [{
    WSS_INSTANCE_HOST_KEY: '192.168.3.51:8089',
    WSS_INSTANCE_NAME_KEY: 'wsserver-std',
    WSS_INSTANCE_ZONE_KEY: 'us-central1-a'
}]

    3.2 执行编译 

    cd /root/webrtc/apprtc
# 一定要加 sudo，否则会出现错误 1
sudo npm install
# 安装 python 依赖
pip install -r requirements.txt
# 由于 python 版本问题
grunt -v build

    3.3 启动 apprtc 服务：

    # 内网 ip
nohup dev_appserver.py --host=192.168.3.51 /root/webrtc/apprtc/out/app_engine --skip_sdk_update_check > /root/webrtc/apprtc.log 2>&1 &

    错误 1: closurecompiler 依赖报错 

    > closurecompiler@1.6.1 install /root/webrtc/apprtc/node_modules/closurecompiler
> npm run-script configure


> closurecompiler@1.6.1 configure /root/webrtc/apprtc/node_modules/closurecompiler
> node scripts/configure.js

Configuring ClosureCompiler.js 1.6.1 ...

  Downloading https://dl.google.com/closure-compiler/compiler-latest.tar.gz ...
events.js:174
      throw er; // Unhandled 'error' event
      ^

Error: EACCES: permission denied, open '/root/webrtc/apprtc/node_modules/closurecompiler/compiler/compiler.tar.gz'
Emitted 'error' event at:
    at lazyFs.open (internal/fs/streams.js:272:12)
    at FSReqWrap.args [as oncomplete] (fs.js:140:20)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! closurecompiler@1.6.1 configure: `node scripts/configure.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the closurecompiler@1.6.1 configure script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! closurecompiler@1.6.1 install: `npm run-script configure`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the closurecompiler@1.6.1 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2019-05-22T07_11_46_138Z-debug.log

    错误 2 : requests 模块不存在 

    Running "shell:buildAppEnginePackage" (shell) task
Traceback (most recent call last):
  File "./build/build_app_engine_package.py", line 12, in <module>
    import requests
ImportError: No module named requests
Warning: Command failed: python ./build/build_app_engine_package.py src out/app_engine
Traceback (most recent call last):
  File "./build/build_app_engine_package.py", line 12, in <module>
    import requests
ImportError: No module named requests
 Use --force to continue.

    解决办法：安装这个依赖 

    pip install requests

    错误 3：Warning: Error: Unable to access jarfile undefined

    可能原因: 1. JDK 没有安装，或者没有 JAVA_HOME 环境变量 2. grunt 的版本要至少 1.3.2 以上

    错误 4:iltorb@1.3.1 安装错误 

    > iltorb@1.3.1 install /root/webrtc/apprtc/node_modules/iltorb
> node-pre-gyp install --fallback-to-build

node-pre-gyp ERR! Tried to download(404): https://node-iltorb.s3.amazonaws.com/iltorb/v1.3.1/node-v64-linux-x64.tar.gz
node-pre-gyp ERR! Pre-built binaries not found for iltorb@1.3.1 and node@10.15.3 (node-v64 ABI) (falling back to source compile with node-gyp)
node-pre-gyp ERR! Tried to download(undefined): https://node-iltorb.s3.amazonaws.com/iltorb/v1.3.1/node-v64-linux-x64.tar.gz
node-pre-gyp ERR! Pre-built binaries not found for iltorb@1.3.1 and node@10.15.3 (node-v64 ABI) (falling back to source compile with node-gyp)

    解决办法：单独拿出来安装（可能是网络原因）

    npm install iltorb
# 再执行
sudo npm install

  4. Nginx

    反向代理 apprtc，使之支持 https 访问，如果 http 直接访问 apprtc，则客户端无法启动视频音频采集（必须得用 https 访问）

    # 添加 yum 源
rpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

yum install nginx

    配置 nginx.conf

    events {worker_connections 1024;}
http{
    upstream roomserver {server 192.168.3.51:8080;}
    server {
        listen 80;
        server_name 192.168.3.51;  
        return  301 https://$server_name$request_uri;
    }
    server {
        root /usr/share/nginx/html;
        index index.php index.html index.htm;
        listen      443 ssl;
        ssl_certificate /cert/cert.pem;
        ssl_certificate_key /cert/key.pem;
        server_name 192.168.3.51;
        location / {
            proxy_pass http://roomserver$request_uri;
            proxy_set_header Host $host;
        }
        location ~ .php$ {
            fastcgi_pass unix:/var/run/php5-fpm.sock;
            fastcgi_index index.php;
            include fastcgi_params;
        }
    }
}

    启动：

    /usr/local/nginx/sbin/nginx

三、其他错误

错误 1: 浏览器通话跨域问题

浏览器启动视频时会出现这个错误提示

浏览器通话跨域问题 :pushState

Messages:Failed to start signaling: Failed to execute ‘pushState’ on ‘History’

解决办法：

# 可以在编译前的代码 
# src/web_app/js/appcontroller.js
# 或者在编译后的代码上面
vim /root/webrtc/apprtc/out/app_engine/js/apprtc.debug.js
# 搜索  pushState 增加:
roomLink=roomLink.substring("http","https");

参考文章：

Ubuntu 下安装 WebRTC

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centos7 webrtc
发表至： javascript
2019-06-04
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