<?php
/**
 * 通用curl
 * User: bleachin
 */
if (!defined('BASEPATH')) exit('No direct script access allowed'); 

class Mycurl
{
    private $host = '';
    private $user_agent = 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36';
    private $cookie = '';

    private $headers = array();
    private $post_data = '';

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

    public function setHost($host='')
    {
    	$this->host = $host;
    }

    public function setUserAgent($user_agent='')
    {
    	$this->user_agent = $user_agent;
    }

    public function setCookie($cookie='')
    {
    	$this->cookie = $cookie;
    }

    public function setHeaders($headers='')
    {
        if($headers&&is_array($headers)){
            $_headers = $headers;
        }else{
            $_headers =  array();
            $_headers[] = $this->host;
            // $_headers[] = 'Accept-Encoding: gzip, deflate, sdch';
            $_headers[] = $this->user_agent;
            $_headers[] = $this->cookie;

            $headers && $_headers[] = $headers;
        }
        $this->headers = $_headers;
    }

    public function httpGet($url='', $data=array()) 
    {
        $res = false;

        if (!$url) return $res;

        if ($data) 
        {
            $url = $url.'?'.$this->buildGetQuery($data);
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        //关闭https验证
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

        if($this->headers)
        {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
        }

        $res = curl_exec($ch);
        curl_close($ch);

        return $res;
    }

    /**
     * post 通用方法
     * @param  string $url       [description]
     * @param  [type] $data      [description]
     * @param  string $type      post请求的数据类型
     * @param  string $file_path 文件的绝对路径，类似APPPATH.'public/img/'.$photo_path
     * @return [type]            [description]
     */
    public function httpPost($url='', $data, $type='', $file_path='',$time_out = 60)
    {
        $res = false;

        if (!$url) return $res;
        if ($file_path) $file_path = realpath($file_path);

        if (!$type || $type=='is_file'|| $type=='xml') {
            $this->post_data = $data;
        }elseif($data && $type=='is_json'){
            $this->post_data = $this->buildJsonQuery($data); 
            $this->headers[] = 'Content-Type: application/json; charset=UTF-8';
        }elseif($data && $type=='is_form')
        {
            $this->post_data = http_build_query($data);
            $this->headers[] = 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8';
        }elseif($data && $type=='xml'){
            $this->headers[] = 'Content-type: text/xml';
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_ENCODING, ''); // 重要，否则采集数据时会乱码，乱码检测的编码格式为cp936
        //关闭https验证
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

        if ($file_path && $type=='is_file') 
        {
            if (class_exists('\CURLFile')) 
            {
                $file_path = new \CURLFile($file_path);
                curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true); // >=5.5.0
            } 
            else 
            {
                if (defined('CURLOPT_SAFE_UPLOAD')) // 非5.6.0，是5.5.0以下手动设置了true
                {   
                    curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false); // <=5.5.0
                }
                
                $file_path = "@".$file_path; //‘@’符号告诉服务器为上传资源
            }
        }

        if($this->headers) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
        }
        curl_setopt($ch, CURLOPT_POSTFIELDS, $this->post_data);
        if($time_out){ //超时时间
            // 在尝试连接时等待的秒数
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT , $time_out);
            // 最大执行时间
            curl_setopt($ch, CURLOPT_TIMEOUT, $time_out);
        }

        $res = curl_exec($ch);

        if(curl_errno( $ch )) {
            $errno = curl_errno( $ch );
            $info  = curl_getinfo( $ch );
            print_r($errno);
            print_r($info);
        }
        $httpCode = curl_getinfo($ch,CURLINFO_HTTP_CODE);

        curl_close($ch);

        return $res;
    }

    /**
     * put 通用方法
     * @param  string $url       [description]
     * @param  [type] $data      [description]
     * @param  string $type      put请求的数据类型
     * @return [type]            [description]
     */
    public function httpPut($url='', $data, $type='',$time_out = 60){
        $res = false;

        if (!$url) return $res;

        if (!$type || $type=='is_file'|| $type=='xml') {
            $this->post_data = $data;
        }elseif($data && $type=='is_json'){
            $this->post_data = $this->buildJsonQuery($data); 
            $this->headers[] = 'Content-Type: application/json; charset=UTF-8';
        }elseif($data && $type=='is_form')
        {
            $this->post_data = http_build_query($data);
            $this->headers[] = 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8';
        }elseif($data && $type=='xml'){
            $this->headers[] = 'Content-type: text/xml';
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT'); //定义请求类型
        curl_setopt($ch, CURLOPT_POSTFIELDS, $this->post_data);

        if($this->headers) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
        }
        if($time_out){ //超时时间
            // 在尝试连接时等待的秒数
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT , $time_out);
            // 最大执行时间
            curl_setopt($ch, CURLOPT_TIMEOUT, $time_out);
        }

        $res = curl_exec($ch);

        if(curl_errno( $ch )) {
            $errno = curl_errno( $ch );
            $info  = curl_getinfo( $ch );
            print_r($errno);
            print_r($info);
        }
        $httpCode = curl_getinfo($ch,CURLINFO_HTTP_CODE);

        curl_close($ch);
        return $res;
    }
    private function buildGetQuery($data) 
    {
        $querystring = '';
        if (is_array($data)) {
            
            foreach ($data as $key => $val) {
                if (is_array($val)) {
                    foreach ($val as $val2) {
                        $querystring .= urlencode($key).'='.urlencode($val2).'&';
                    }
                } else {
                    $querystring .= urlencode($key).'='.urlencode($val).'&';
                }
            }
            $querystring = substr($querystring, 0, -1);
        } else {
            $querystring = $data;
        }
        return $querystring;
    }

    private function buildJsonQuery($data) 
    {
        $querystring = '';
        if (is_array($data)) {
            $querystring=json_encode($data);
        }
        return $querystring;
    }
}