<?php
/**
 * 有货相关接口类
 *
 * @name Yohobuy
 * @package library/Api
 * @copyright yoho.inc
 * @version 1.0 (2015-9-30 16:42:51)
 * @author fei.hong <fei.hong@yoho.cn>
 */

namespace Api;

use WebPlugin\Cache;
use WebPlugin\UdpLog;

class Yohobuy
{

    /**
     * 登录老接口Api配置
     */
    const API_LOGIN_URL = 'http://api.open.yohobuy.com';
    const API_LOGIN_URL_TEST = 'http://test.open.yohobuy.com';

    /**
     * 私钥列表
     *
     * @var array
     */
    public static $privateKeyList = array(
        'android' => 'fd4ad5fcfa0de589ef238c0e7331b585',
        'iphone' => 'a85bb0674e08986c6b115d5e3a4884fa',
        'ipad' => 'ad9fcda2e679cf9229e37feae2cdcf80',
        'web' => '0ed29744ed318fd28d2c07985d3ba633',
        'h5' => 'fd4ad5fcfa0de589ef238c0e7331b585',
    );

    //分流服务器接口
    public static $interfaceShunt = array(
        'tencentServers' => array(
            'api' => array('123.206.1.98', '123.206.2.80'),
            'service' => array('123.206.1.98', '123.206.2.80')
        ),
        'awsServers' => array(
            'api' => 'app-java-168863769.cn-north-1.elb.amazonaws.com.cn',
            'service' => 'service-yoho-579825100.cn-north-1.elb.amazonaws.com.cn'
        )
    );

    /**
     * 取得当前的客户端类型
     */
    public static function clientType()
    {
        if(self::isMobile()) {
            return 'h5';
        }
        else {
            return 'web';
        }

//         // 苹果设备
//         if (strstr($_SERVER['HTTP_USER_AGENT'], 'iPhone')) {
//             return 'iphone';
//         }
//         // 苹果IPAD
//         elseif (strstr($_SERVER['HTTP_USER_AGENT'], 'iPad')) {
//             return 'ipad';
//         }
//         elseif (stristr($_SERVER['HTTP_USER_AGENT'], 'android')) {
//             return 'android';
//         }
//         // 其它
//         else {
//             return 'android';
//         }
    }

    /**
     * 取得当前的IP地址
     *
     * @param bool $int 返回int类型的ip地址，默认是
     * @return mixed 当前的IP地址
     */
    public static function ip($int = true)
    {
        if (isset($_SERVER['HTTP_CLIENT_IP']) && $_SERVER['HTTP_CLIENT_IP']) {
            $onlineip = $_SERVER['HTTP_CLIENT_IP'];
        } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && $_SERVER['HTTP_X_FORWARDED_FOR']) {
            $onlineip = $_SERVER['HTTP_X_FORWARDED_FOR'];
        } else {
            $onlineip = $_SERVER['REMOTE_ADDR'];
        }

        return $int ? ip2long($onlineip) : $onlineip;
    }

    /**
     * 取得公共的参数
     *
     * @return array
     */
    public static function param()
    {
        $clientType = self::clientType();
        $param = array(
            'app_version' => '3.8.2',
            'client_type' => $clientType,
            'os_version' => 'yohobuy:h5',
            'private_key' => self::$privateKeyList[$clientType],
            'screen_size' => '720x1280',
            'v' => '7',
        );
        return $param;
    }

    /**
     * 构建URL
     *
     * @param string $url
     * @param array $data
     * @return string
     */
    public static function httpBuildQuery($url, $data)
    {
        // 销毁私钥参数
        if (isset($data['private_key'])) {
            unset($data['private_key']);
        }
        if (strstr($url, '?') !== false) {
            $url .= '&' . http_build_query($data, null, '&');
        } else {
            $url .= '?' . http_build_query($data, null, '&');
        }
        return $url;
    }

    /**
     * get方式调用接口
     *
     * @param string $url 接口URL
     * @param array $data 参数列表
     * @parma mixed $cache 控制是否启用接口数据的缓存(时间单位为秒). 如3600表示缓存1小时, false表示不缓存
     * @param bool $returnJson 控制是否返回json格式数据
     * @param int $timeout 超时时间
     * @param null $userAgent
     * @param bool $useGzip 是否启用Gzip
     * @return mixed
     */
    public static function get($url, $data = array(), $cache = false, $returnJson = false, $timeout = 5, $userAgent = null, $useGzip = true)
    {
        $isApi = false;
        $isService = false;
        $urlBack = $url;

        if (USE_INTER_FACE_SHUNT) {
            if (strpos($url, 'api')) {
                $isApi = true;
                $url = self::_getUrl($url, $data);
            } else if (strpos($url, 'service')) {
                $isService = true;
                $url = self::_getUrl($url, $data);
            }

            //$url 返回为空，走原先的url
            if (empty($url)) {
                $isApi = false;
                $isService = false;
                $url = $urlBack;
            }
        }

        // 销毁私钥参数
        if (isset($data['private_key'])) {
            unset($data['private_key']);
        }

        if (!empty($data)) {
            $url = self::httpBuildQuery($url, $data);
        } //echo $url;

        UdpLog::debug('get shut api', $url);

        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            // 先尝试获取一级缓存(master), 有数据则直接返回.
            $result = Cache::get($url, 'master');
            if (!empty($result)) {
                return $result;
            }
        }
        
        
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        if ($isApi) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: api.yoho.cn'));
        } else if ($isService) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: service.yoho.cn'));
        }
        
        if ($useGzip) {  
            curl_setopt($ch, CURLOPT_ENCODING, 'gzip');
        }

        if (!empty($userAgent)) {
            curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
        }

        $result = curl_exec($ch);
        $httpCode = curl_getinfo($ch,CURLINFO_HTTP_CODE);

        //如果分流执行失败，则走原来的逻辑
        if (USE_INTER_FACE_SHUNT && $httpCode !== 200) {
            curl_close($ch);
            return self::_get($urlBack, $data, $cache, $returnJson, $timeout, $userAgent, $useGzip);
        }

        if (!$returnJson && !empty($result)) {
            $result = json_decode($result, true);
        }

        curl_close($ch);
        $data = array();

        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            // 接口调用异常时, 不害怕，从我们的二级缓存(slave)里再取数据.
            if (empty($result)) {
                $result = Cache::get($url, 'slave');
            }
            // 接口调用成功时，这里会设置一级(master)和二级(slave)的缓存数据.
            else {
                Cache::set($url, $result, $cache);
            }
        }

        return $result;
    }

    private static function _get($url, $data = array(), $cache = false, $returnJson = false, $timeout = 5, $userAgent = null, $useGzip = true)
    {
        // 销毁私钥参数
        if (isset($data['private_key'])) {
            unset($data['private_key']);
        }

        if (!empty($data)) {
            $url = self::httpBuildQuery($url, $data);
        } //echo $url;

        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            // 先尝试获取一级缓存(master), 有数据则直接返回.
            $result = Cache::get($url, 'master');
            if (!empty($result)) {
                return $result;
            }
        }
        
        
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        
        if ($useGzip) {  
            curl_setopt($ch, CURLOPT_ENCODING, 'gzip');
        }

        if (!empty($userAgent)) {
            curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
        }

        UdpLog::debug('call api: ', $url);

        $result = curl_exec($ch);
        $httpCode = curl_getinfo($ch,CURLINFO_HTTP_CODE);
        if (!$returnJson && !empty($result)) {
            $result = json_decode($result, true);
        }

        curl_close($ch);
        $data = array();

        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            // 接口调用异常时, 不害怕，从我们的二级缓存(slave)里再取数据.
            if (empty($result)) {
                $result = Cache::get($url, 'slave');
            }
            // 接口调用成功时，这里会设置一级(master)和二级(slave)的缓存数据.
            else {
                Cache::set($url, $result, $cache);
            }
        }

        return $result;
    }
    /**
     * post提交数据
     *
     * @param string $url 接口URL
     * @param array $data 参数列表
     * @param bool $returnJson 控制是否返回json格式数据
     * @param int $timeout 超时时间
     * @param array $header
     * @param array $cookie
     * @return mixed
     */
    public static function post($url, $data = array(), $returnJson = false, $timeout = 10, $header = array(), $cookie = array())
    {
        $isApi = false;
        $isService = false;
        $urlBack = $url;

        if (USE_INTER_FACE_SHUNT) {
            if (strpos($url, 'api')) {
                $isApi = true;
                $url = self::_getUrl($url, $data);
            } else if (strpos($url, 'service')) {
                $isService = true;
                $url = self::_getUrl($url, $data);
            }

            //$url 返回为空，走原先的url
            if (empty($url)) {
                $isApi = false;
                $isService = false;
                $url = $urlBack;
            }
        }

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

        if ($isApi) {
            array_push($header, 'Host: api.yoho.cn');
        } else if ($isService) {
            array_push($header, 'Host: service.yoho.cn');
        }

        if (!empty($header)) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        } else {
            curl_setopt($ch, CURLOPT_HEADER, 0);
        }
        if (!empty($cookie)) {
            $cookie_str = array();
            foreach ($cookie as $key => $val) {
                $cookie_str[] = urlencode($key) . '=' . urlencode($val);
            }
            curl_setopt($ch, CURLOPT_COOKIE, implode(';', $cookie_str));
        }
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.122 YOHOWEB');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);

        // 销毁私钥参数
        if (isset($data['private_key'])) {
            unset($data['private_key']);
        }
        if (!empty($data)) {
            $str = http_build_query($data, null, '&');
            // 新加支持application/x-www-form-urlencoded调用方式
            //curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $str);
        }
        $result = curl_exec($ch);

        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

        UdpLog::debug('post api', array('url' => $url, 'httpCode' => $httpCode));

        //如果分流执行失败，则走原来的逻辑
        if (USE_INTER_FACE_SHUNT && $httpCode !== 200) {
            curl_close($ch);
            return self::_post($urlBack, $data, $returnJson, $timeout, $header, $cookie);
        }

        if (!$returnJson && !empty($result)) {
            $result = json_decode($result, true);
        }
        curl_close($ch);
        $data = array();

        return $result;
    }

    public static function _post($url, $data = array(), $returnJson = false, $timeout = 10, $header = array(), $cookie = array())
    {
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

        if (!empty($header)) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        } else {
            curl_setopt($ch, CURLOPT_HEADER, 0);
        }
        if (!empty($cookie)) {
            $cookie_str = array();
            foreach ($cookie as $key => $val) {
                $cookie_str[] = urlencode($key) . '=' . urlencode($val);
            }
            curl_setopt($ch, CURLOPT_COOKIE, implode(';', $cookie_str));
        }
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.122 YOHOWEB');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);

        // 销毁私钥参数
        if (isset($data['private_key'])) {
            unset($data['private_key']);
        }
        if (!empty($data)) {
            $str = http_build_query($data, null, '&');
            // 新加支持application/x-www-form-urlencoded调用方式
            //curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $str);
        }

        UdpLog::debug('post fail api', $url);

        $result = curl_exec($ch);
        if (!$returnJson && !empty($result)) {
            $result = json_decode($result, true);
        }
        curl_close($ch);
        $data = array();

        return $result;
    }

    /**
     * 批量调用接口
     *
     * @param array $urlList 接口列表
     * @param array $options CURL设置项
     * @parma mixed $cache 控制是否启用接口数据的缓存(时间单位为秒). 如3600表示缓存1小时, false表示不缓存
     * @param int $timeout 超时时间，单位是秒
     * @param boolean $isOriginalData 是否原始数据返回  (默认false, 只返回data数据)
     * @return array
     */
    public static function getMulti($urlList = array(), $options = array(), $cache = false, $timeout = 5, $isOriginalData = false)
    {
        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            $key = md5(implode(',', array_values($urlList)));
            // 先尝试获取一级缓存(master), 有数据则直接返回.
            $result = Cache::get($key, 'master');
            if (!empty($result)) {
                return $result;
            }
        }

        $result = array();
        $response = array();
        $running = 0;
        $data = '';
        $error = '';
        $defaultOptions = array(
            CURLOPT_HEADER => 0,
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_CONNECTTIMEOUT => $timeout,
            CURLOPT_TIMEOUT => $timeout,
            CURLOPT_NOSIGNAL => 1, //忽略所有的curl传递给php的信号,减少并发crash
        );
        $mh = curl_multi_init();
        $ch = array();

        // 应用CURL配置
        if (empty($options)) {
            $options = $defaultOptions;
        } else {
            $options = array_merge($defaultOptions, $options);
        }

        // 添加子链接句柄
        foreach ($urlList as $name => $api) {
            $ch[$name] = curl_init($api);
            curl_setopt_array($ch[$name], $options);
            curl_multi_add_handle($mh, $ch[$name]);
            $result[$name] = array();
        }

        // 调用API接口
        do {
            do {
                $status = curl_multi_exec($mh, $running);
            } while ($status == CURLM_CALL_MULTI_PERFORM);

            if ($status != CURLM_OK) {
                break;
            }

            if ($running > 0) {
                curl_multi_select($mh, 0.5);
            }
        } while ($running);

        // 获取API接口响应的结果
        foreach ($urlList as $name => $api) {
            $error = curl_error($ch[$name]);
            if ($error != '') {
                continue;
            }

            $data = curl_multi_getcontent($ch[$name]);
            if (!$data) {
                continue;
            }

            $response = json_decode($data, true);
            if(!$isOriginalData) {//只返回data数据
                if (!isset($response['data'])) {
                    continue;
                }
                $result[$name] = $response['data'];

            }
            else  {
                $result[$name] = $response;
            }
            curl_multi_remove_handle($mh, $ch[$name]);
            curl_close($ch[$name]);
        }
        curl_multi_close($mh);

        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            // 接口调用异常时, 不害怕，从我们的二级缓存(slave)里再取数据.
            if (empty($result[$name])) {
                $result = Cache::get($key, 'slave');
            }
            // 接口调用成功时，这里会设置一级(master)和二级(slave)的缓存数据.
            else {
                Cache::set($key, $result, $cache);
            }
        }

        return $result;
    }

    /**
     * rpc调用远程服务(YAR)
     *
     * @see http://php.net/manual/zh/yar-client.setopt.php
     * @param string $uri
     * @param string $method
     * @param array $parameters
     * @param mixed $cache 控制是否启用接口数据的缓存(时间单位为秒). 如3600表示缓存1小时, false表示不缓存
     * @param int $timeout
     * @return array
     */
    public static function yarClient($uri, $method, $parameters = array(), $cache = false, $timeout = 3000)
    {
        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            $key = self::httpBuildQuery($uri . $method, $parameters);
            // 先尝试获取一级缓存(master), 有数据则直接返回.
            $result = Cache::get($key, 'master');
            if (!empty($result)) {
                return $result;
            }
        }

        $client = new \Yar_Client($uri);
        $client->SetOpt(YAR_OPT_PACKAGER, 'php');
        $client->SetOpt(YAR_OPT_TIMEOUT, $timeout);
        $client->SetOpt(YAR_OPT_CONNECT_TIMEOUT, $timeout);

        try {
            $result = call_user_func_array(array($client, $method), $parameters);
        } catch (\Exception $e) {
            $result = array();
        }

        /* 开启缓存的情况 */
        if ($cache && USE_CACHE) {
            // 接口调用异常时, 不害怕，从我们的二级缓存(slave)里再取数据.
            if (empty($result)) {
                $result = Cache::get($key, 'slave');
            }
            // 接口调用成功时，这里会设置一级(master)和二级(slave)的缓存数据.
            else {
                Cache::set($key, $result, $cache);
            }
        }

        return $result;
    }

    /**
     * 并行(异步)调用远程服务
     *
     * @see http://php.net/manual/zh/class.yar-concurrent-client.php
     * @param string $uri
     * @param string $method
     * @param array $parameter
     * @param callable $callback
     * @param int $timeout
     * @return void
     */
    public static function yarConcurrentCall($uri, $method, $parameters, $callback, $timeout = 3000)
    {
        \Yar_Concurrent_Client::call($uri, $method, $parameters, $callback, null, array(
            YAR_OPT_PACKAGER => 'php',
            YAR_OPT_TIMEOUT => $timeout,
            YAR_OPT_CONNECT_TIMEOUT => $timeout
        ));
    }

    public static function yarConcurrentLoop($callback = null)
    {
        \Yar_Concurrent_Client::loop($callback);
    }

    /**
     * 提交json格式数据请求java有关接口
     *
     * @param string $url 接口URL
     * @param array $data 参数列表
     * @param bool $returnJson 控制是否返回json格式数据
     * @param int $timeout 超时时间
     * @param array $cookie
     * @return mixed
     */
    public static function jsonPost($url, $data = array(), $returnJson = false, $timeout = 10, $cookie = array())
    {
        $ch = curl_init($url);

        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');

        if (!empty($cookie)) {
            $cookie_str = array();
            foreach ($cookie as $key => $val) {
                $cookie_str[] = urlencode($key) . '=' . urlencode($val);
            }
            curl_setopt($ch, CURLOPT_COOKIE, implode(';', $cookie_str));
        }

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        if (!empty($data)) {
            $data_string = json_encode($data);

            curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
            // 设置json的Header
            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/json',
                'Content-Length: ' . strlen($data_string)
            ));
        }
        $result = curl_exec($ch);
        if (!$returnJson && !empty($result)) {
            $result = json_decode($result, true);
        }
        curl_close($ch);
        $data = array();

        return $result;
    }

    /**
     * 获取用户User-Agent
     * @return bool
     */
    public static function getUserAgent()
    {
        if (!isset($_SERVER['HTTP_USER_AGENT']) || empty($_SERVER['HTTP_USER_AGENT'])) {
            return '';
        }
        return $_SERVER['HTTP_USER_AGENT'];
    }

    /**
     * 判断是否手机
     * @return bool
     */
    public static function isMobile()
    {
        $userAgent = self::getUserAgent();
        if (stristr($userAgent, 'ipad')) {
            return false;
        }
        $mobileAgents = array('iphone','android',"240x320","acer","acoon","acs-","abacho","ahong","airness","alcatel","amoi","anywhereyougo.com","applewebkit/525","applewebkit/532","asus","audio","au-mic","avantogo","becker","benq","bilbo","bird","blackberry","blazer","bleu","cdm-","compal","coolpad","danger","dbtel","dopod","elaine","eric","etouch","fly ","fly_","fly-","go.web","goodaccess","gradiente","grundig","haier","hedy","hitachi","htc","huawei","hutchison","inno","ipad","ipaq","ipod","jbrowser","kddi","kgt","kwc","lenovo","lg ","lg2","lg3","lg4","lg5","lg7","lg8","lg9","lg-","lge-","lge9","longcos","maemo","mercator","meridian","micromax","midp","mini","mitsu","mmm","mmp","mobi","mot-","moto","nec-","netfront","newgen","nexian","nf-browser","nintendo","nitro","nokia","nook","novarra","obigo","palm","panasonic","pantech","philips","phone","pg-","playstation","pocket","pt-","qc-","qtek","rover","sagem","sama","samu","sanyo","samsung","sch-","scooter","sec-","sendo","sgh-","sharp","siemens","sie-","softbank","sony","spice","sprint","spv","symbian","tablet","talkabout","tcl-","teleca","telit","tianyu","tim-","toshiba","tsm","up.browser","utec","utstar","verykool","virgin","vk-","voda","voxtel","vx","wap","wellco","wig browser","wii","windows ce","wireless","xda","xde","zte");
        $isMobile = false;
        foreach ($mobileAgents as $device) {
            if (stristr($userAgent, $device)) {
                $isMobile = true;
                break;
            }
        }
        return $isMobile;
    }

    /**
    *根据配置决定请求Java接口的地址
    */
    private static function _getUrl($url, $param)
    {
        if (USE_CACHE === false || USE_INTER_FACE_SHUNT === false) {
            return false;
        }


        UdpLog::debug('read memcache');
        $interfaceShunt = Cache::getBy('INTERFACE_SHUT_KEY', 'master');

        UdpLog::debug('read memcahe: ', $interfaceShunt);
        if (empty($interfaceShunt)) {
            return false;
        }

        $interfaceShunt = json_decode($interfaceShunt, true);

        if (empty($interfaceShunt['cloud'])) {
            return false;
        }

        $uid = isset($param['uid']) ? intval($param['uid']) : 0;
        $mod = 0;
        $cloud = intval($interfaceShunt['cloud']);
        $ips = '';

        switch ($cloud) {
            case 1:
                $ips = $interfaceShunt['aws'];
                break;
            case 2:
                $ips = $interfaceShunt['tencent'];
                break;
            case 3:
                if (empty($uid) || empty($interfaceShunt['strategy']) ||
                    empty($interfaceShunt['strategy']['model']) ||
                    empty($interfaceShunt['strategy']['tencentMax'])) {
                    break;
                } else {
                    $ips = $uid % $interfaceShunt['strategy']['model'] > $interfaceShunt['strategy']['tencentMax'] ?
                        $interfaceShunt['aws'] : $interfaceShunt['tencent'];
                }
                break;
            default:
                $ips = '';
                break;
        }

        //未登录情况下
        if (empty($uid) && empty($ips) && !empty($interfaceShunt['strategy']) &&
            !empty($interfaceShunt['strategy']['notLogin'])) {
            $ips = $interfaceShunt[$interfaceShunt['strategy']['notLogin']];
        }

        if (empty($ips)) {
            return false;
        }

        $paseUrl = parse_url($url);
        if (strpos($url, 'api')) {

            if (empty($ips['api.yoho.cn'])) {
                return false;
            }

            $num = array_rand($ips['api.yoho.cn']);

            if (empty($ips['api.yoho.cn'][$num]['ip'])) {
                return false;
            }

            $url = 'http://' . $ips['api.yoho.cn'][$num]['ip'] . rtrim($paseUrl['path'], '/') . '/';

        } else if (strpos($url, 'service')) {

            if (empty($ips['service.yoho.cn'])) {
                return false;
            }

            $num = array_rand($ips['service.yoho.cn']);

            if (empty($ips['service.yoho.cn'][$num]['ip'])) {
                return false;
            }

            $url = 'http://' . $ips['service.yoho.cn'][$num]['ip'] . rtrim($paseUrl['path'], '/') . '/';
        }

        return $url;
    }
}