<?php

 //var_dump($_SERVER);

/*********all header*******************/
$headers = array();
foreach($_SERVER as $key=>$value)
{
	if('HTTP_' == substr($key,0,5))
	{
		$headers[str_replace('_','-',substr($key,5))] = $value;
	}
}
if(isset($_SERVER['PHP_AUTH_DIGEST']))
{
	$headers['AUTHORIZATION'] = $_SERVER['PHP_AUTH_DIGEST']; 
}
elseif (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW']))
{
	$headers['AUTHORIZATION'] = base64_encode($_SERVER['PHP_AUTH_USER'] . ':' . $_SERVER['PHP_AUTH_PW']); 
}
if (isset($_SERVER['CONTENT_LENGTH'])) 
{
	$headers['CONTENT-LENGTH'] = $_SERVER['CONTENT_LENGTH'];
}
if (isset($_SERVER['CONTENT_TYPE'])) 
{
	$headers['CONTENT-TYPE'] = $_SERVER['CONTENT_TYPE'];
}
/**************************/


$method = isset($_SERVER['REQUEST_METHOD'])?$_SERVER['REQUEST_METHOD'] :"";
if($method == 'OPTIONS')
{

}


$url = isset($headers['FISHPROXY-RAWURL'])?$headers['FISHPROXY-RAWURL']:"";

if($url == '')
{
	return;
}
$url = urldecode($url);

if($_SERVER['QUERY_STRING'])
{
	$arr_query_string = explode("&",$_SERVER['QUERY_STRING']);
	//array_shift($arr_query_string);
	if(is_array($arr_query_string) && count($arr_query_string)>0)
	{
		$query_string = implode("&",$arr_query_string);
		//echo $url."\n";
		//var_dump(strpos($url,"?"))."\n";
		if(strpos($url,"?") === false)
		{
			$url = $url."?".$query_string;
		}
		else
		{
			if(substr($url,-1) == "&")
			{
				$url = $url. $query_string;
			}
			else
			{
				$url = $url."&".$query_string;
			}
		}
	}
}

$myheader = array();
$ch = curl_init($url);
if($method == 'POST')
{
	$http_build_query = file_get_contents("php://input");
	curl_setopt($ch,CURLOPT_POST,1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $http_build_query);
	
}
$url_parse = parse_url($url);

$cookietag = str_replace('.','',$url_parse['host'])."_"; 


foreach($headers as $header=>$v)
{
	if(strpos($header,'FISHPROXY-')===0)
	{
		continue;
	}
	switch($header)
	{
		case "HOST":
			#echo $url,$dynamicHost;
			break;
		case "CONNECTION":
			break;
		case "ACCEPT":
			$myheaders['ACCEPT'] = 'Accept:'.$v;
	    	break;
		case 'ACCEPT-LANGUAGE':
			$myheaders['ACCEPT-LANGUAGE'] =  'Accept-Language:'.$v;
		    break;
		case "REFERER":
			curl_setopt($ch, CURLOPT_REFERER,$v);
	        break;
		case 'USER-AGENT':
		    curl_setopt($ch,CURLOPT_USERAGENT,$v);
		    break;
		case 'CONTENT-TYPE':
			$myheaders['CONTENT-TYPE'] = "Content-type:".$v;
		    break;
		//case 'CONTENT-LENGTH':
	 	//   $myheaders['CONTENT-LENGTH'] = "Content-length:".$v;
		 //  break;
		case 'COOKIE':
		   $cookies = explode(";",$v);
		   $str_cookie = array();
		   if(is_array($cookies))
		   {
			   foreach($cookies as $cookie)
			   {
				   if(strpos(trim($cookie),$cookietag) ===0 && false===strpos($cookie,'TIETONG'))
				   {
					   $str_cookie[]  = substr(trim($cookie),strlen($cookietag));
				   }
			   }
		   }
		   curl_setopt($ch,CURLOPT_COOKIE,implode("; ",$str_cookie));
		   break;
		case 'ORIGIN':
		 $myheaders[$header] =  "Origin:".$v;
	     break; 
		default:
		//   $myheaders[$header] = $header.":".$v;
		   break;
	}
}


foreach($headers as $header=>$v)
{
	if(!strpos($header,'FISHPROXY-')===0)
	{
		continue;
	}
	$header = substr($header,10);
	switch($header)
	{
		case "HOST":
			break;
		case "CONNECTION":
			break;
		case "ACCEPT":
			$myheader['ACCEPT'] = 'Accept:'.$v;
	    	break;
		case 'ACCEPT-LANGUAGE':
			$myheaders['ACCEPT-LANGUAGE'] =  'Accept-Language:'.$v;
		    break;
		case "REFERER":
			curl_setopt($ch, CURLOPT_REFERER,$v);
	        break;
		case 'USER-AGENT':
		    curl_setopt($ch,CURLOPT_USERAGENT,$v);
		    break;
		case 'CONTENT-TYPE':
			$myheaders['CONTENT-TYPE'] = "Content-type:".$v;
		    break;
		case 'CONTENT-LENGTH':
	 	  $myheaders['CONTENT-LENGTH'] = "Content-length:".$v;
		   break;
		case 'COOKIE':
		   curl_setopt($ch,CURLOPT_COOKIE,$v);
		   break;
		//case 'ORIGIN':
		//    $myheaders['ORIGIN'] = "Origin:".$v;
		   //break;
	   default:
		 //  $myheaders[$header] = $header.":".$v;
		   break;
	}
}

curl_setopt($ch,CURLOPT_ENCODING ,'gzip,deflate');
curl_setopt($ch,CURLOPT_HTTPHEADER,$myheaders);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch,CURLOPT_HEADER,1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);

$response = curl_exec($ch);
$info = curl_getinfo($ch);
$error = curl_error ($ch);
curl_close($ch);
 

$arr_temp = explode("\r\n\r\n",$response);

$redirect_count = $info['redirect_count'];
$header_length = 0;
for($i = 0; $i< $redirect_count+1; $i++)
{
	$header = $arr_temp[$i];
	$header_length += strlen($header);
	$header_length +=4;
	if(strpos($header,'HTTP/1.1 100 Continue')!==false)
	{
		$redirect_count ++;
	}
}
$body = substr($response,$header_length);
if(isset($info['content_type']) && strpos(strtoupper($info['content_type']),'TEXT/HTML')!==false && 
 (strpos(strtoupper($info['content_type']),'GB2312') !==false || strpos(strtoupper($info['content_type']),'GBK')!==false))
{
	$body = @iconv('gbk','utf-8',$body);
}


if(preg_match_all('/Set-Cookie:[\s]+([^=]+)=([^;]+)/i', $header,$match)) 
{
	if(is_array($match) && count($match) == 3)
	{
		foreach($match[1] as $k=>$v)
		{
			 setcookie($cookietag.$v,$match[2][$k],time()+86400,'/12306');
		}
	}
}
echo $body;


//添加日志记录
if($url == 'http://kyfw.12306.cn/otn/passcodeNew/getPassCodeNew?module=login&rand=sjrand')
{
	if(strpos($header,'image/jpeg') <=0)
	{
		error_log(date("Y-m-d H:i:s"). "  code can't show\n",3,'../logs/log_'.date("Ymd").".log");
	}
	else
	{
		//error_log('code can show',3,'../logs/log_'.date("Ymd").".log");
	}
}

//var_dump($error);
exit;