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‎src/Live.php‎

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<?php
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/**
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* @link http://www.tintsoft.com/
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* @copyright Copyright (c) 2012 TintSoft Technology Co. Ltd.
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* @license http://www.tintsoft.com/license/
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*/
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namespace aliyun\live;
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use yii\base\Component;
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use yii\base\InvalidConfigException;
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use GuzzleHttp\HandlerStack;
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use GuzzleHttp\Client as HttpClient;
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use aliyun\guzzle\subscriber\Rpc;
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/**
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* Class Client
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* @package aliyun\live
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*/
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class Live extends Component
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{
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/**
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* @var string
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*/
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public $accessKeyId;
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/**
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* @var string
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*/
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public $accessSecret;
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/**
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* @var string API版本
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*/
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public $version = '2016-11-01';
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/**
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* @var string 网关地址
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*/
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public $baseUri = 'https://live.aliyuncs.com/';
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/**
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* @var string 应用名称
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*/
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public $appName;
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/**
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* @var string 应用域名
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*/
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public $domain;
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/**
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* @var string 推流鉴权
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*/
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public $pushAuth;
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/**
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* @var string 媒体中心地址
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*/
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public $pushDomain = 'video-center.alivecdn.com';
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/**
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* @var bool 是否使用安全连接
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*/
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public $secureConnection = false;
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/**
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* @var int 签名有效期,默认有效期是一周
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*/
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public $authTime = 604800;
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/**
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* @var int 秘钥过期时间
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*/
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private $expirationTime;
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/**
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* @var string 播放协议
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*/
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private $playScheme;
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/**
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* @var string 播放地址
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*/
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private $httpPlayUrl;
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/**
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* @var HttpClient
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*/
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private $_httpClient;
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/**
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* 初始化直播组件
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* @throws InvalidConfigException
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*/
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public function init(){
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parent::init();
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$this->expirationTime = time() + $this->authTime;
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$this->playScheme = $this->secureConnection ? 'https://' : 'http://';
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$this->httpPlayUrl = $this->playScheme . $this->domain;
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if (empty ($this->accessKeyId)) {
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throw new InvalidConfigException ('The "accessKeyId" property must be set.');
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}
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if (empty ($this->accessSecret)) {
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throw new InvalidConfigException ('The "accessSecret" property must be set.');
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}
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if (empty ($this->appName)) {
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throw new InvalidConfigException ('The "appName" property must be set.');
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}
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if (empty ($this->domain)) {
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throw new InvalidConfigException ('The "domain" property must be set.');
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}
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}
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/**
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* 获取Http Client
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* @return HttpClient
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*/
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public function getHttpClient()
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{
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if (!is_object($this->_httpClient)) {
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$stack = HandlerStack::create();
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$middleware = new Rpc([
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'accessKeyId' => $this->accessKeyId,
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'accessSecret' => $this->accessSecret,
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'Version' => $this->version
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]);
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$stack->push($middleware);
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$this->_httpClient = new HttpClient([
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'base_uri' => $this->baseUri,
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'handler' => $stack,
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'verify' => false,
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'http_errors' => false,
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'connect_timeout' => 3,
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'read_timeout' => 10,
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'debug' => false,
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]);
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}
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return $this->_httpClient;
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}
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/**
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* 发起Api请求
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* @param array $params
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* @return \Psr\Http\Message\ResponseInterface
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*/
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public function createRequest(array $params)
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{
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return $this->getHttpClient()->get('/', ['query' => $params]);
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}
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/**
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* 禁止推流
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* @param string $streamName
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* @return string
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*/
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public function forbidLiveStream($streamName)
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{
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return $this->createRequest([
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'Action' => 'ForbidLiveStream',
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'DomainName' => $this->domain,
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'AppName' => $this->appName,
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'StreamName' => $streamName,
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'LiveStreamType' => 'publisher',
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'ResumeTime' => gmdate('Y-m-d\TH:i:s\Z', mktime(0, 0, 0, 1, 1, 2099))
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]);
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}
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/**
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* 允许推流
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* @param string $streamName
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* @return string
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*/
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public function startLiveStream($streamName)
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{
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return $this->createRequest([
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'Action' => 'ResumeLiveStream',
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'DomainName' => $this->domain,
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'AppName' => $this->appName,
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'StreamName' => $streamName,
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'LiveStreamType' => 'publisher'
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]);
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}
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/**
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* 实时查询在线人数的请求参数
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* @param null|string $streamName
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* @param null|int $startTime
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* @param null|int $endTime
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* @return string
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*/
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public function describeLiveStreamOnlineUserNum($streamName = null, $startTime = null, $endTime = null)
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{
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$params = [
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'Action' => 'DescribeLiveStreamOnlineUserNum',
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'DomainName' => $this->domain,
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'AppName' => $this->appName
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];
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if (!empty($streamName)) {
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$params['StreamName'] = $streamName;
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}
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if (!empty($startTime) && !empty($endTime)) {
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$params['StartTime'] = gmdate('Y-m-d\TH:i:s\Z', $startTime);
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$params['EndTime'] = gmdate('Y-m-d\TH:i:s\Z', $endTime);
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}
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return $this->createRequest($params);
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}
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/**
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* 查询在线的直播推流列表
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* @return string
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*/
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public function describeLiveStreamsOnlineList()
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{
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return $this->createRequest([
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'Action' => 'DescribeLiveStreamsOnlineList',
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'DomainName' => $this->domain,
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'AppName' => $this->appName
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]);
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}
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/**
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* 直播签名
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* @param string $streamName
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* @return string
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*/
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public function getSign($streamName)
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{
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$uri = "/{$this->appName}/{$streamName}";
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if ($this->pushAuth) {
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$authKey = "?vhost={$this->domain}&auth_key={$this->expirationTime}-0-0-" . md5("{$uri}-{$this->expirationTime}-0-0-{$this->pushAuth}");
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} else {
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$authKey = "?vhost={$this->domain}";
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}
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return $authKey;
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}
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/**
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* 获取推流地址
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* @return string
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*/
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public function getPushPath()
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{
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return "rtmp://{$this->pushDomain}/{$this->appName}/";
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}
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/**
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* 获取串码流
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* @param string $streamName 流名称
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* @return string
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*/
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public function getPushArg($streamName)
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{
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return $streamName . $this->getSign($streamName);
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}
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/**
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* 获取直播推流地址
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* @param string $streamName
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* @return string
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*/
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public function getPushUrl($streamName)
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{
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$uri = "/{$this->appName}/{$streamName}";
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return "rtmp://{$this->pushDomain}" . $uri . $this->getSign($streamName);
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}
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/**
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* 验证签名
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* @param string $streamName
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* @param string $usrargs
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* @return bool
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*/
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public function checkSign($streamName, $usrargs)
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{
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parse_str($usrargs, $args);
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if (isset($args['vhost']) && isset($args['auth_key'])) {
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if ($args['vhost'] != $this->domain) {
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return false;
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}
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$params = explode('-', $args['auth_key'], 4);
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if (isset($params[0]) && $params[3]) {
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$uri = "/{$this->appName}/{$streamName}";
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if ($params[3] == md5("{$uri}-{$params[0]}-0-0-{$this->pushAuth}")) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* 获取签名
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* @param string $uri
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* @return string
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*/
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protected function getAuthKey($uri)
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{
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$authKey = '';
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if ($this->pushAuth) {
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$authKey = "?auth_key={$this->expirationTime}-0-0-" . md5("{$uri}-{$this->expirationTime}-0-0-{$this->pushAuth}");
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}
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return $authKey;
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}
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/**
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* 获取RTMP拉流地址
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* @param string $streamName
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* @return string
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*/
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public function getPlayUrlForRTMP($streamName)
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{
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$uri = "/{$this->appName}/{$streamName}";
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return 'rtmp://' . $this->domain . $uri . $this->getAuthKey($uri);
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}
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/**
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* 获取FLV播放地址
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* @param string $streamName
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* @return string
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*/
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public function getPlayUrlForFLV($streamName)
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{
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$uri = "/{$this->appName}/{$streamName}.flv";
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return $this->httpPlayUrl . $uri . $this->getAuthKey($uri);
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}
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/**
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* 获取M3U8播放地址
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* @param string $streamName
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* @return string
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*/
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public function getPlayUrlForM3U8($streamName)
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{
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$uri = "/{$this->appName}/{$streamName}.m3u8";
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return $this->httpPlayUrl . $uri . $this->getAuthKey($uri);
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}
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/**
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* 获取阿里云播放地址
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* @param string $streamName
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* @return array
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*/
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public function getPlayUrls($streamName)
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{
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return [
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'rtmp' => $this->getPlayUrlForRTMP($streamName),
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'flv' => $this->getPlayUrlForFLV($streamName),
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'm3u8' => $this->getPlayUrlForM3U8($streamName)
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];
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}
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/**
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* 设置签名过期时间
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* @param int $expirationTime
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* @return $this
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*/
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public function setExpirationTime($expirationTime)
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{
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$this->expirationTime = $expirationTime;
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return $this;
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}
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/**
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* 获取签名过期时间
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* @return int
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*/
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public function getExpirationTime()
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{
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return $this->expirationTime;
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}
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/**
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* @return string
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*/
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public function getPlayScheme()
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{
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return $this->playScheme;
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}
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/**
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* @return string
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*/
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public function getHttpPlayUrl()
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{
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return $this->httpPlayUrl;
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}
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}

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