<?php

/**
 * http、https通信类
 * ============================================================================
 * api说明：
 * setReqContent($reqContent),设置请求内容，无论post和get，都用get方式提供
 * getResContent(), 获取应答内容
 * setMethod($method),设置请求方法,post或者get
 * getErrInfo(),获取错误信息
 * setCertInfo($certFile, $certPasswd, $certType="PEM"),设置证书，双向https时需要使用
 * setCaInfo($caFile), 设置CA，格式未pem，不设置则不检查
 * setTimeOut($timeOut)， 设置超时时间，单位秒
 * getResponseCode(), 取返回的http状态码
 * call(),真正调用接口
 * 
 * ============================================================================
 *
 */

class TenpayHttpClient {
	//请求内容，无论post和get，都用get方式提供
	var $reqContent;
	//应答内容
	var $resContent;
	//请求方法
	var $method;
	
	//证书文件
	var $certFile;
	//证书密码
	var $certPasswd;
	//证书类型PEM
	var	$certType;
	
	//CA文件
	var $caFile;
	
	//错误信息
	var $errInfo;
	
	//超时时间
	var $timeOut;
	
	//http状态码
	var $responseCode;
	
	function __construct() {
		$this->TenpayHttpClient();
	}
	
	
	function TenpayHttpClient() {
		$this->reqContent = "";
		$this->resContent = "";
		$this->method = "post";

		$this->certFile = "";
		$this->certPasswd = "";
		$this->certType = "PEM";
		
		$this->caFile = "";
		
		$this->errInfo = "";
		
		$this->timeOut = 120;
		
		$this->responseCode = 0;
		
	}
	
	
	//设置请求内容
	function setReqContent($reqContent) {
		$this->reqContent = $reqContent;
	}
	
	//获取结果内容
	function getResContent() {
		return $this->resContent;
	}
	
	//设置请求方法post或者get	
	function setMethod($method) {
		$this->method = $method;
	}
	
	//获取错误信息
	function getErrInfo() {
		return $this->errInfo;
	}
	
	//设置证书信息
	function setCertInfo($certFile, $certPasswd, $certType="PEM") {
		$this->certFile = $certFile;
		$this->certPasswd = $certPasswd;
		$this->certType = $certType;
	}
	
	//设置Ca
	function setCaInfo($caFile) {
		$this->caFile = $caFile;
	}
	
	//设置超时时间,单位秒
	function setTimeOut($timeOut) {
		$this->timeOut = $timeOut;
	}
	
	//执行http调用
	function call() {
		//启动一个CURL会话
		$ch = curl_init();

		// 设置curl允许执行的最长秒数
		curl_setopt($ch, CURLOPT_TIMEOUT, $this->timeOut);

		// 获取的信息以文件流的形式返回，而不是直接输出。
		curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);

		// 从证书中检查SSL加密算法是否存在
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1);
				
		
		$arr = explode("?", $this->reqContent);
		if(count($arr) >= 2 && $this->method == "post") {
			//发送一个常规的POST请求，类型为：application/x-www-form-urlencoded，就像表单提交的一样。
			curl_setopt($ch, CURLOPT_POST, 1);
			curl_setopt($ch, CURLOPT_URL, $arr[0]);
			//要传送的所有数据
			curl_setopt($ch, CURLOPT_POSTFIELDS, $arr[1]);
		
		}else{
			curl_setopt($ch, CURLOPT_URL, $this->reqContent);
		}
		
		//设置证书信息
		if($this->certFile != "") {
			curl_setopt($ch, CURLOPT_SSLCERT, $this->certFile);
			curl_setopt($ch, CURLOPT_SSLCERTPASSWD, $this->certPasswd);
			curl_setopt($ch, CURLOPT_SSLCERTTYPE, $this->certType);
		}
		
		//设置CA
		if($this->caFile != "") {
			// 对认证证书来源的检查，0表示阻止对证书的合法性的检查。1需要设置CURLOPT_CAINFO
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
			curl_setopt($ch, CURLOPT_CAINFO, $this->caFile);
		} else {
			// 对认证证书来源的检查，0表示阻止对证书的合法性的检查。1需要设置CURLOPT_CAINFO
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
		}
		
		// 执行操作
		$res = curl_exec($ch);
		$this->responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
		
		if ($res == NULL) { 
		   $this->errInfo = "call http err :" . curl_errno($ch) . " - " . curl_error($ch) ;
		   curl_close($ch);
		   return false;
		} else if($this->responseCode  != "200") {
			$this->errInfo = "call http err httpcode=" . $this->responseCode  ;
			curl_close($ch);
			return false;
		}
		
		curl_close($ch);
		$this->resContent = $res;

		
		return true;
	}
	
	function getResponseCode() {
		return $this->responseCode;
	}
	
}
?>