<?php
namespace common\exts;
use common\helpers\Log as AppLog;

/**
 * Class Http
 * @package common\exts\wechat
 */
class Http
{
    /**
     * GET 请求
     * @param string $url
     * @return bool|mixed
     */
    public static $postStr = '';
    public static function get($url, $header = array())
    {
        $curl = curl_init();

        if (stripos($url,"https://") !== FALSE) {
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        }
        if (!empty($header)) {
            curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        }
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

        $result = curl_exec($curl);
        $status = curl_getinfo($curl);

        curl_close($curl);

        $r = json_decode($result);
        if (isset($r->errcode) && $r->errcode >= 40001) {
            //Log::init();
            AppLog::DEBUG($result);
        }

        if (intval($status["http_code"]) == 200) {
            return $result;
        } else {
            return false;
        }
    }

    /**
     * POST 请求
     * @param string $url
     * @param array $param
     * @return string content
     */
    public static function post($url, $param, $encode = true, $header = array())
    {
        $curl = curl_init();

        if (stripos($url,"https://")!==FALSE) {
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
            curl_setopt($curl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
        }

        if (is_string($param)) {
            $strPOST = $param;
        } else {
            $aPOST = array();
            foreach($param as $key=>$val) {
                if ($encode == false) {
                    $aPOST[] = $key."=".$val;
                } else {
                    $aPOST[] = $key."=".urlencode($val);
                }

            }
            $strPOST =  join("&", $aPOST);
        }

        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_POST, true);
        if (!empty($header)) {
            curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        }
        self::$postStr = $strPOST;
        curl_setopt($curl, CURLOPT_POSTFIELDS, $strPOST);

        $result = curl_exec($curl);
        $status = curl_getinfo($curl);
        curl_close($curl);

        if (intval($status["http_code"]) == 200) {
            return $result;
        } else {
            return false;
        }
    }

    /**
     * 上传文件
     * @param $url
     * @param $filedata
     */
    public static function upload($url, $filedata)
    {
        $curl = curl_init ();
        if (class_exists ( '\CURLFile' )) {//php5.5跟php5.6中的CURLOPT_SAFE_UPLOAD的默认值不同
            curl_setopt ( $curl, CURLOPT_SAFE_UPLOAD, true );
        } else {
            if (defined ( 'CURLOPT_SAFE_UPLOAD' )) {
                curl_setopt ( $curl, CURLOPT_SAFE_UPLOAD, false );
            }
        }
        curl_setopt ( $curl, CURLOPT_URL, $url );
        curl_setopt ( $curl, CURLOPT_SSL_VERIFYPEER, FALSE );
        curl_setopt ( $curl, CURLOPT_SSL_VERIFYHOST, FALSE );
        if (! empty ( $filedata )) {
            curl_setopt ( $curl, CURLOPT_POST, 1 );
            curl_setopt ( $curl, CURLOPT_POSTFIELDS, $filedata );
        }
        curl_setopt ( $curl, CURLOPT_RETURNTRANSFER, 1 );
        $output = curl_exec ( $curl );
        curl_close ( $curl );
        return $output;
    }

    /**
     * 下载网络图片并缓存到指定本地路径
     * @param $url 网络图片地址
     * @param $cachePath 本地缓存路径
     */
    public static function download($url, $cachePath)
    {
        $curl = curl_init();
        $fp = fopen($cachePath, 'wb');
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_FILE, $fp);
        curl_setopt($curl, CURLOPT_HEADER, 0);
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
        //curl_setopt($hander,CURLOPT_RETURNTRANSFER,false);//以数据流的方式返回数据,当为false是直接显示出来
        curl_setopt($curl,CURLOPT_TIMEOUT, 60);
        curl_exec($curl);
        curl_close($curl);
        fclose($fp);
    }

    /**
     * @param $url
     * @return array
     */
    public static function getImageStream($url)
    {
        $curl = curl_init();

        curl_setopt($curl, CURLOPT_HEADER, 0);
        curl_setopt($curl, CURLOPT_NOBODY, 0);    //只取body头
        if(stripos($url,"https://") !== FALSE){
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        }

        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1 );

        $result = curl_exec($curl);
        $status = curl_getinfo($curl);

        curl_close($curl);

        $imageAll = array_merge(array('header' => $status ), array('body' => $result ));
        return $imageAll;
    }

    /**
     * GET 请求
     * @param string $url
     */
    public static function http_get($url)
    {
        $oCurl = curl_init();
        if(stripos($url,"https://")!==FALSE){
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
        }
        curl_setopt($oCurl, CURLOPT_URL, $url);
        curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
        $sContent = curl_exec($oCurl);
        $aStatus = curl_getinfo($oCurl);
        curl_close($oCurl);
        if(intval($aStatus["http_code"])==200){
            return $sContent;
        }else{
            return false;
        }
    }

    // xml to array
    public static function xmlToArr($xml)
    {
        libxml_disable_entity_loader(true);
        $xmlString = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
        $val = json_decode(json_encode($xmlString),true);
        return $val;
    }

    /**
     * POST 请求
     * @param string $url
     * @param array $param
     * @return string content
     */
    public static function post_material($url, $param,$encode=true,$header=array())
    {
        $curl = curl_init();

        if(stripos($url,"https://")!==FALSE){
            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
            curl_setopt($curl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
        }

        if (is_string($param)) {
            $strPOST = $param;
        } else {
            $aPOST = array();
            foreach($param as $key=>$val){
                if(strpos($val, '@') === 0)
                {
                    $filename = ltrim($val, '@');
                    $param[$key] = new \CURLFile($filename);
                }
                if($encode==false){
                    $aPOST[] = $key."=".$val;
                }else{
                    $aPOST[] = $key."=".urlencode($val);
                }

            }
            $strPOST =  join("&", $aPOST);
        }
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt($curl, CURLOPT_POST,true);
        if(!empty($header)){
            curl_setopt($curl, CURLOPT_HTTPHEADER,$header);
        }
        self::$postStr = $strPOST;
        curl_setopt($curl, CURLOPT_POSTFIELDS, $param);

        $result = curl_exec($curl);
        $status = curl_getinfo($curl);
        curl_close($curl);

        if(intval($status["http_code"]) == 200){
            return $result;
        }else{
            return false;
        }
    }

}