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<?php
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class AliyunClient
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{
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public $accessKeyId;
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public $accessKeySecret;
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public $serverUrl = "http://ecs.aliyuncs.com/";
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public $format = "json";
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public $connectTimeout = 3000;//3秒
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public $readTimeout = 80000;//80秒
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/** 是否打开入参check**/
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public $checkRequest = true;
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protected $signatureMethod = "HMAC-SHA1";
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protected $signatureVersion = "1.0";
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protected $dateTimeFormat = 'Y-m-d\TH:i:s\Z'; // ISO8601规范
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protected $sdkVersion = "1.0";
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public function execute($request)
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{
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if($this->checkRequest) {
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try {
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$request->check();
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} catch (Exception $e) {
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$result->code = $e->getCode();
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$result->message = $e->getMessage();
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return $result;
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}
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}
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//获取业务参数
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$apiParams = $request->getApiParas();
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//组装系统参数
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$apiParams["AccessKeyId"] = $this->accessKeyId;
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$apiParams["Format"] = $this->format;//
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$apiParams["SignatureMethod"] = $this->signatureMethod;
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$apiParams["SignatureVersion"] = $this->signatureVersion;
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$apiParams["SignatureNonce"] = uniqid();
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date_default_timezone_set("GMT");
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$apiParams["TimeStamp"] = date($this->dateTimeFormat);
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$apiParams["partner_id"] = $this->sdkVersion;
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$apiNameArray = split("\.", $request->getApiMethodName());
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$apiParams["Action"] = $apiNameArray[3];
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$apiParams["Version"] = $apiNameArray[4];
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//签名
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$apiParams["Signature"] = $this->computeSignature($apiParams, $this->accessKeySecret);
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//系统参数放入GET请求串
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$requestUrl = rtrim($this->serverUrl,"/") . "/?";
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foreach ($apiParams as $apiParamKey => $apiParamValue)
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{
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$requestUrl .= "$apiParamKey=" . urlencode($apiParamValue) . "&";
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}
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$requestUrl = substr($requestUrl, 0, -1);
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//发起HTTP请求
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try
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{
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$resp = $this->curl($requestUrl, null);
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}
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catch (Exception $e)
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{
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$this->logCommunicationError($apiParams["Action"],$requestUrl,"HTTP_ERROR_" . $e->getCode(),$e->getMessage());
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if ("json" == $this->format)
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{
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return json_decode($e->getMessage());
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}
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else if("xml" == $this->format)
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{
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return @simplexml_load_string($e->getMessage());
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}
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}
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//解析API返回结果
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$respWellFormed = false;
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if ("json" == $this->format)
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{
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$respObject = json_decode($resp);
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if (null !== $respObject)
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{
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$respWellFormed = true;
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}
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}
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else if("xml" == $this->format)
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{
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$respObject = @simplexml_load_string($resp);
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if (false !== $respObject)
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{
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$respWellFormed = true;
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}
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}
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//返回的HTTP文本不是标准JSON或者XML，记下错误日志
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if (false === $respWellFormed)
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{
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$this->logCommunicationError($apiParams["Action"],$requestUrl,"HTTP_RESPONSE_NOT_WELL_FORMED",$resp);
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$result->code = 0;
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$result->message = "HTTP_RESPONSE_NOT_WELL_FORMED";
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return $result;
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}
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//如果TOP返回了错误码，记录到业务错误日志中
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if (isset($respObject->code))
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{
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$logger = new LtLogger;
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$logger->conf["log_file"] = rtrim(TOP_SDK_WORK_DIR, '\\/') . '/' . "logs/top_biz_err_" . $this->appkey . "_" . date("Y-m-d") . ".log";
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$logger->log(array(
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date("Y-m-d H:i:s"),
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$resp
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));
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}
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return $respObject;
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}
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public function exec($paramsArray)
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{
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if (!isset($paramsArray["Action"]))
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{
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trigger_error("No api name passed");
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}
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$inflector = new LtInflector;
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$inflector->conf["separator"] = ".";
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$requestClassName = ucfirst($inflector->camelize(substr($paramsArray["Action"], 7))) . "Request";
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if (!class_exists($requestClassName))
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{
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trigger_error("No such api: " . $paramsArray["Action"]);
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}
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$req = new $requestClassName;
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foreach($paramsArray as $paraKey => $paraValue)
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{
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$inflector->conf["separator"] = "_";
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$setterMethodName = $inflector->camelize($paraKey);
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$inflector->conf["separator"] = ".";
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$setterMethodName = "set" . $inflector->camelize($setterMethodName);
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if (method_exists($req, $setterMethodName))
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{
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$req->$setterMethodName($paraValue);
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}
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}
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return $this->execute($req, $session);
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}
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protected function percentEncode($str)
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{
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// 使用urlencode编码后，将"+","*","%7E"做替换即满足 API规定的编码规范
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$res = urlencode($str);
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$res = preg_replace('/\+/', '%20', $res);
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$res = preg_replace('/\*/', '%2A', $res);
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$res = preg_replace('/%7E/', '~', $res);
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return $res;
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}
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protected function computeSignature($parameters, $accessKeySecret)
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{
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// 将参数Key按字典顺序排序
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ksort($parameters);
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// 生成规范化请求字符串
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$canonicalizedQueryString = '';
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foreach($parameters as $key => $value)
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{
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$canonicalizedQueryString .= '&' . $this->percentEncode($key)
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. '=' . $this->percentEncode($value);
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}
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// 生成用于计算签名的字符串 stringToSign
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$stringToSign = 'GET&%2F&' . $this->percentencode(substr($canonicalizedQueryString, 1));
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// 计算签名，注意accessKeySecret后面要加上字符'&'
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$signature = base64_encode(hash_hmac('sha1', $stringToSign, $accessKeySecret . '&', true));
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return $signature;
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}
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public function curl($url, $postFields = null)
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{
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_FAILONERROR, false);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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if ($this->readTimeout) {
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curl_setopt($ch, CURLOPT_TIMEOUT, $this->readTimeout);
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}
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if ($this->connectTimeout) {
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->connectTimeout);
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}
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//https 请求
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if(strlen($url) > 5 && strtolower(substr($url,0,5)) == "https" ) {
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
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}
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if (is_array($postFields) && 0 < count($postFields))
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{
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$postBodyString = "";
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$postMultipart = false;
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foreach ($postFields as $k => $v)
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{
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if("@" != substr($v, 0, 1))//判断是不是文件上传
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{
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$postBodyString .= "$k=" . urlencode($v) . "&";
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}
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else//文件上传用multipart/form-data，否则用www-form-urlencoded
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{
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$postMultipart = true;
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}
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}
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unset($k, $v);
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curl_setopt($ch, CURLOPT_POST, true);
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if ($postMultipart)
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{
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curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
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}
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else
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{
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curl_setopt($ch, CURLOPT_POSTFIELDS, substr($postBodyString,0,-1));
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}
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}
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$reponse = curl_exec($ch);
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if (curl_errno($ch))
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{
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throw new Exception(curl_error($ch),0);
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}
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curl_close($ch);
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return $reponse;
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}
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protected function logCommunicationError($apiName, $requestUrl, $errorCode, $responseTxt)
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{
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$localIp = isset($_SERVER["SERVER_ADDR"]) ? $_SERVER["SERVER_ADDR"] : "CLI";
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$logger = new LtLogger;
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$logger->conf["log_file"] = rtrim(TOP_SDK_WORK_DIR, '\\/') . '/' . "logs/top_comm_err_" . $this->accessKeyId . "_" . date("Y-m-d") . ".log";
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$logger->conf["separator"] = "^_^";
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$logData = array(
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date("Y-m-d H:i:s"),
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$apiName,
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$this->accessKeyId,
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$localIp,
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PHP_OS,
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$this->sdkVersion,
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$requestUrl,
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$errorCode,
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str_replace("\n","",$responseTxt)
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);
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$logger->log($logData);
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}
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}
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