最近做直播平臺試用了一下阿里的直播服務，阿里的sdk寫的有點繞，自己建了一個基類去實現簽名提交和建立推拉流地址

請求和加簽名的基類：

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016/12/8 0008
 * Time: 11:05
 */

class Aliyun{
    private $accessKeyId = "";          //金鑰ID
    private $accessKeySecret = "";      //金鑰
    public  $version = "2014-11-11";    //API版本號
    public  $format = "JSON";           //返回值型別
    private $domainParameters = "";
    public  $video_host='';                //推流域名
    public  $appName="test";            //應用名
    public  $privateKey="";             //鑑權
    public  $vhost="";                  //加速域名
    public  $msg;

    /**
     * 訪問阿ali介面進行請求並返回ali返回值
     * @param array $apiParams 介面自定義引數
     * @param string $credential 傳值方式預設get
     * @param string $domain 請求地址
     */
    public function aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com")
    {
        date_default_timezone_set("GMT");
        $apiParams['Format'] = $this->format;
        $apiParams['SignatureMethod'] = "HMAC-SHA1";//簽名演算法
        $apiParams['SignatureNonce'] = rand(100000,999999);//隨機數
        $apiParams['SignatureVersion'] = '1.0';//簽名演算法版本
        $apiParams['TimeStamp'] =date('Y-m-d\TH:i:s\Z');//請求時間
        $apiParams['Version'] = $this->version;
        $apiParams["AccessKeyId"]=$this->accessKeyId;
        $accessSecret = $this->accessKeySecret;
        $apiParams["Signature"] = $this->computeSignature($credential,$apiParams,$accessSecret);
        if($credential == "POST") {
            $requestUrl = "https://". $domain . "/";
            foreach ($apiParams as $apiParamKey => $apiParamValue)
            {
                $this->putDomainParameters($apiParamKey,$apiParamValue);
            }
            $url= $requestUrl;
        }
        else {
            $requestUrl = "http://". $domain . "/?";

            foreach ($apiParams as $apiParamKey => $apiParamValue)
            {
                $requestUrl .= "$apiParamKey=" . urlencode($apiParamValue) . "&";
            }
            $url= substr($requestUrl, 0, -1);
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,false); //處理http證書問題
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $ret = curl_exec($ch);
        if (false === $ret) {
            $ret =  curl_errno($ch);
            $this->message = 'curl方法出錯，錯誤號：'.$ret;
            return false;
        }
        curl_close($ch);
        if( $this->format == "JSON")
            return json_decode($ret,true);
        elseif($this->format =="XML"){
            return $this->xmlToArray($ret);
        }else
            return $ret;
    }

    /**
     * 計算簽名
     * @param $credential
     * @param $parameters
     * @param $accessKeySecret
     * @return string
     */
    private function computeSignature($credential,$parameters, $accessKeySecret)
    {
        ksort($parameters);
        $canonicalizedQueryString = '';
        foreach($parameters as $key => $value)
        {
            $canonicalizedQueryString .= '&' . $this->percentEncode($key). '=' . $this->percentEncode($value);
        }
        $stringToSign = $credential.'&%2F&' . $this->percentencode(substr($canonicalizedQueryString, 1));
        $signature = $this->signString($stringToSign, $accessKeySecret."&");

        return $signature;
    }

    /**
     * url編碼
     * @param $str
     * @return mixed|string
     */
    protected function percentEncode($str)
    {
        $res = urlencode($str);
        $res = preg_replace('/\+/', '%20', $res);
        $res = preg_replace('/\*/', '%2A', $res);
        $res = preg_replace('/%7E/', '~', $res);
        return $res;
    }

    /**
     * get請求時無用沒看
     * @param $name
     * @param $value
     */
    public function putDomainParameters($name, $value)
    {
        $this->domainParameters[$name] = $value;
    }

    /**
     * 對待加密字串加密
     * @param $source
     * @param $accessSecret
     * @return string
     */
    public function signString($source, $accessSecret)
    {
        return	base64_encode(hash_hmac('sha1', $source, $accessSecret, true));
    }

    /**
     * xml轉成陣列
     * @param $xml
     * @return mixed
     */
    function xmlToArray($xml){

        //禁止引用外部xml實體

        libxml_disable_entity_loader(true);

        $xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);

        $val = json_decode(json_encode($xmlstring),true);

        return $val;

    }
}
 

<?php
/**
 * Created by PhpStorm.
 * User: ForeverTime
 * Date: 2016/12/10
 * Time: 16:27
 */
class Ali_Lite{
    protected  $config;
    protected  $aliLive;

    public function __construct()
    {
        include_once 'Aliyun.php';
        $this -> aliLive = new Aliyun();
    }

    /**
     * 查詢線上人數
     * @param $domainName  直播域名
     * @param $appName     應用名
     * @param $streamName  推流名
     */
    public function describeLiveStreamOnlineUserNum($domainName,$appName,$streamName){
        $apiParams = array(
            'Action'=>'DescribeLiveStreamOnlineUserNum',
            'DomainName'=>$domainName,
            'AppName'=>$appName,
            'StreamName'=>$streamName,
        );
        return $this -> aliLive -> aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com");
    }


    /**
     * 獲取某個域名或應用下的直播流操作記錄
     * @param $domainName      域名
     * @param $appName         應用名
     * @param $streamName      推流名
     */
    public function describeLiveStreamsControlHistory($domainName,$appName,$startTime,$endTime){
        $apiParams = array(
            'Action'=>'DescribeLiveStreamsControlHistory',
            'DomainName'=>$domainName,
            'AppName'=>$appName,
            'StartTime'=>$startTime,
            'EndTime'=>$endTime,
        );
        return $this -> aliLive -> aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com");
    }

    /**
     * 檢視指定域名下（或者指定域名下某個應用）的所有正在推的流的資訊
     * @param $domainName       域名
     * @param $appName          應用名
     * @return bool|int|mixed
     */
    public function describeLiveStreamsOnlineList($domainName,$appName){
        $apiParams = array(
            'Action'=>'DescribeLiveStreamsOnlineList',
            'DomainName'=>$domainName,
            'AppName'=>$appName,
        );
        return $this -> aliLive -> aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com");
    }

    /**
     * 查詢推流黑名單列表
     * @param $domainName       域名
     * @return bool|int|mixed
     */
    public function describeLiveStreamsBlockList($domainName){
        $apiParams = array(
            'Action'=>'DescribeLiveStreamsBlockList',
            'DomainName'=>$domainName,
        );
        return $this -> aliLive -> aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com");
    }

    /**
     * 生成推流地址
     * @param $streamName 使用者專有名
     * @param $vhost 加速域名
     * @param $time 有效時間單位秒
     */
    public function getPushSteam($streamName,$vhost,$time=3600){
        $time = time()+$time;
        $videohost = $this->aliLive->video_host;
        $appName=$this->aliLive->appName;
        $privateKey=$this->aliLive->privateKey;
        if($privateKey){
            $auth_key =md5('/'.$appName.'/'.$streamName.'-'.$time.'-0-0-'.$privateKey);
            $url =$videohost.'/'.$appName.'/'.$streamName.'?vhost='.$vhost.'&auth_key='.$time.'-0-0-'.$auth_key;
        }else{
            $url = $videohost.'/'.$appName.'/'.$streamName.'?vhost='.$vhost;
        }
        return $url;
    }

    /**
     * 生成拉流地址
     * @param $streamName 使用者專有名
     * @param $vhost 加速域名
     * @param $type 視訊格式 支援rtmp、flv、m3u8三種格式
     */
    public function getPullSteam($streamName,$vhost,$time=3600,$type='rtmp'){
        $time = time()+$time;
        $appName=$this->aliLive->appName;
        $privateKey=$this->aliLive->privateKey;
        $url='';
        switch ($type){
            case 'rtmp':
                $host = 'rtmp://'.$vhost;
                $url = '/'.$appName.'/'.$streamName;
                break;
            case 'flv':
                $host = 'http://'.$vhost;
                $url = '/'.$appName.'/'.$streamName.'.flv';
                break;
            case 'm3u8':
                $host = 'http://'.$vhost;
                $url = '/'.$appName.'/'.$streamName.'.m3u8';
                break;
        }
        if($privateKey){
            $auth_key =md5($url.'-'.$time.'-0-0-'.$privateKey);
            $url = $host.$url.'?auth_key='.$time.'-0-0-'.$auth_key;
        }else{
            $url = $host.$url;
        }
        return $url;
    }

    /**
     * 禁止推流介面
     * @param $domainName   	 您的加速域名
     * @param $appName          應用名稱
     * @param $streamName       流名稱
     * @param $liveStareamName  用於指定主播推流還是客戶端拉流, 目前支援”publisher” (主播推送)
     * @param $resumeTime       恢復流的時間 UTC時間 格式：2015-12-01T17:37:00Z
     * @return bool|int|mixed
     */
    public function forbid($streamName,$resumeTime,$domainName='www.test.com',$appName='xnl',$liveStreamType='publisher'){
        $apiParams = array(
            'Action'=>'ForbidLiveStream',
            'DomainName'=>$domainName,
            'AppName'=>$appName,
            'StreamName'=>$streamName,
            'LiveStreamType'=>$liveStreamType,
            'ResumeTime'=>$resumeTime
        );
        return $this -> aliLive -> aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com");
    }

    /**
     * 恢復直播流推送
     * @param $streamName              流名稱
     * @param string $appName          應用名稱
     * @param string $liveStreamType   用於指定主播推流還是客戶端拉流, 目前支援”publisher” (主播推送)
     * @param string $domainName       您的加速域名
     */
    public function resumeLive($streamName,$domainName='www.test.top',$appName='xnl',$liveStreamType='publisher'){
        $apiParams = array(
            'Action'=>'ResumeLiveStream',
            'DomainName'=>$domainName,
            'AppName'=>$appName,
            'StreamName'=>$streamName,
            'LiveStreamType'=>$liveStreamType,
        );
        return $this -> aliLive -> aliApi($apiParams,$credential="GET", $domain="cdn.aliyuncs.com");
    }

}