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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