实用curl类

<?php

/**
 * CURL for http request
 */
class LHttpCurl
{
    const GET_REQUEST = 'GET';
    const POST_REQUEST = 'POST';


    const RESPONSE_OK_CODE = 200;

    protected $sRequestMethod;
    protected $sGateUrl;
    protected $sQueryString;
    protected $arrProxyOptions;
    protected $arrSslOptions;
    protected $arrHeaders;
    protected $arrCookies;
    protected $iTimeout;
    protected $iCurlErrno;
    protected $sCurlErrMsg;
    protected $iResponseCode;
    protected $sResponseBody;
    protected $arrCurlInfo;

    public function __construct()
    {
        $this->init();
    }

    protected function init()
    {
        $this->sRequestMethod = self::GET_REQUEST;
        $this->sGateUrl = 'http://localhost/cgi';
        $this->sQueryString = '';
        $this->arrProxyOptions = array();
        $this->arrSslOptions = array();
        $this->arrHeaders = array();
        $this->arrCookies = array();
        $this->iTimeout = 3;
        $this->iCurlErrno = 0;
        $this->sCurlErrMsg = '';
        $this->iResponseCode = 0;
        $this->sResponseBody = '';
        $this->arrCurlInfo = array();
    }

    /**
     * @param string $requestMethod LHttpClient::GET_REQUEST | LHttpClient::POST_REQUEST
     */
    public function setMethod($requestMethod)
    {
        $this->sRequestMethod = $requestMethod;
    }

    /**
     * @param string $gateUrl 请求接口地址
     */
    public function setGateURL($gateUrl)
    {
        $this->init();

        $this->sGateUrl = $gateUrl;
    }

    /**
     * 设置请求串, 使用http_build_query()生成
     * @param string $queryString
     */
    public function setQueryString($queryString)
    {
        $this->sQueryString = $queryString;
    }

    public function getQueryString()
    {
        return $this->sQueryString;
    }

    /**
     * 返回GET形式的请求URL
     * @return string 请求URL
     */
    public function getRequestURL()
    {
        if (!empty($this->sQueryString))
        {
            return $this->sGateUrl . '?' . $this->sQueryString;
        }
        else
        {
            return $this->sGateUrl;
        }
    }

    /**
     * 设置代理
     * @param string $proxyHost CURLOPT_PROXY: "host[:port]"
     * @param string $proxyAuth CURLOPT_PROXYUSERPWD: "user:pass"
     * @param int $proxyType CURLPROXY_HTTP (default) or CURLPROXY_SOCKS5
     * @param int $proxyAuthType CURLAUTH_BASIC and CURLAUTH_NTLM
     * @param bool $tunnel CURLOPT_HTTPPROXYTUNNEL: 是否tunnel方式使用代理
     */
    public function setProxy($proxyHost, $proxyAuth=null,
                             $proxyType=null, $proxyAuthType=null,
                             $tunnel = false)
    {
        $this->arrProxyOptions['proxyhost'] = $proxyHost;
        $this->arrProxyOptions['proxyauth'] = $proxyAuth;
        $this->arrProxyOptions['proxytype'] = $proxyType;
        $this->arrProxyOptions['proxyauthtype'] = $proxyAuthType;
        $this->arrProxyOptions['tunnel'] = $tunnel;
    }

    /**
     * 设置证书信息, 证书文件包含了key
     * @param string $certFile 证书文件路径(最好使用绝对路径)
     * @param string $certPasswd 使用证书或key需要的密码
     * @param string $certType "PEM"(默认) | "DER"
     */
    public function setSslCert($certFile, $certPasswd, $certType="PEM")
    {
        $this->arrSslOptions['cert'] = $certFile;
        $this->arrSslOptions['certtype'] = $certType;
        $this->arrSslOptions['certpasswd'] = $certPasswd;
    }

    /**
     * 设置CA证书路径
     * @param string $caFile
     */
    public function setSslCaInfo($caFile)
    {
        $this->arrSslOptions['cainfo'] = $caFile;
        $this->arrSslOptions['verifypeer'] = true;
        $this->arrSslOptions['verifyhost'] = 2;
    }

    /**
     * 合并$headers到当前请求头
     * @param array $headers array('Host' => 'www.xxx.com') : 'Host: www.xxx.com'
     */
    public function addHeaders($headers)
    {
        $this->arrHeaders = array_merge($this->arrHeaders, $headers);
    }

    /**
     * 合并$cookies到当前请求cookie
     * @param array $cookies array('fruit' => 'apple', 'colour' => 'red') : 'Cookie: fruit=apple; colour=red'
     */
    public function addCookies($cookies)
    {
        $this->arrCookies = array_merge($this->arrCookies, $cookies);
    }

    /**
     * 设置请求超时
     * @param int $timeout
     */
    public function setTimeout($timeout)
    {
        $this->iTimeout = $timeout;
    }

    /**
     * 初始化curl, 发送请求, 记录响应和错误.
     *
     * @return bool ('http_code' == 200)
     */
    public function execute()
    {

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        if ( $this->sRequestMethod == self::POST_REQUEST ) {
            //发送一个常规的POST请求，类型为：application/x-www-form-urlencoded，就像表单提交的一样
            curl_setopt($ch, CURLOPT_URL, $this->sGateUrl);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $this->sQueryString);
        } else {
            curl_setopt($ch, CURLOPT_URL, $this->getRequestURL());
        }

        if ( isset($this->arrProxyOptions['proxyhost']) ) //初始化代理相关设置
        {
            curl_setopt($ch, CURLOPT_PROXY, $this->arrProxyOptions['proxyhost']);
            curl_setopt($ch, CURLOPT_PROXYUSERPWD, $this->arrProxyOptions['proxyauth']);
            curl_setopt($ch, CURLOPT_PROXYTYPE, $this->arrProxyOptions['proxytype']);
            curl_setopt($ch, CURLOPT_PROXYAUTH, $this->arrProxyOptions['proxyauthtype']);

            curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, $this->arrProxyOptions['tunnel']);
        }

        if ( isset($this->arrSslOptions['cert']) ) //初始化ssl证书相关设置
        {
            curl_setopt($ch, CURLOPT_SSLCERT, $this->arrSslOptions['cert']);
            curl_setopt($ch, CURLOPT_SSLCERTTYPE, $this->arrSslOptions['certtype']);
            curl_setopt($ch, CURLOPT_SSLCERTPASSWD, $this->arrSslOptions['certpasswd']);
        }

        if ( isset($this->arrSslOptions['cainfo']) ) //初始化CA相关设置
        {
            curl_setopt($ch, CURLOPT_CAINFO, $this->arrSslOptions['cainfo']);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->arrSslOptions['verifypeer']);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, $this->arrSslOptions['verifyhost']);
        } else {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        }

        //设置Header
        if ( !empty($this->arrHeaders) ) {
            $headers = array();
            foreach ($this->arrHeaders as $key => $value) {
                $headers[] = "$key: $value";
            }
            curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        }

        //设置Cookie
        if ( !empty($this->arrCookies) ) {
            $cookies = array();
            foreach ($this->arrCookies as $key => $value) {
                $encodedValue = urlencode($value);
                $cookies[]    = "$key=$encodedValue";
            }
            curl_setopt($ch, CURLOPT_COOKIE, implode('; ', $cookies));
        }

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

        // 执行操作
        $this->sResponseBody = curl_exec($ch);
        $this->iCurlErrno    = curl_errno($ch);
        $this->sCurlErrMsg   = curl_error($ch);
        $this->arrCurlInfo   = curl_getinfo($ch);
        $this->iResponseCode = (isset($this->arrCurlInfo['http_code']) ?
            intval($this->arrCurlInfo['http_code']) : 0);

        // 释放资源
        curl_close($ch);

        //var_dump($this->iResponseCode);

        //return $this->sResponseBody;
        return ($this->iResponseCode == 200 ? true : false);
    }

    /**
     * 返回curl执行的错误码
     * @return int curl_errno()
     */
    public function getCurlErrno()
    {
        return $this->iCurlErrno;
    }

    /**
     * 返回curl执行的错误信息
     * @return string curl_error()
     */
    public function getCurlErrMsg()
    {
        return $this->sCurlErrMsg;
    }

    /**
     * 返回响应的HTTP Code, 正常返回 200
     * @return int
     */
    public function getResponseCode()
    {
        return $this->iResponseCode;
    }

    /**
     * 返回响应内容
     * @return string
     */
    public function getResponseBody()
    {
        return $this->sResponseBody;
    }

    /**
     * 返回响应数据
     * @return string
     */
    public function getArrCurlInfo()
    {
        return $this->arrCurlInfo;
    }



}