<?php 
/** 
* Process The PUT File, receive and move a file to corresponsed location 
* Created by shiqiang<cocowool@gmail.com> at 2010-05-24 
* 
**/

class Receive { 
    var $default_log_file = "logs/error.log"; 
    var $default_server_info = "logs/server.log"; 
    var $default_header_info = "logs/header.log"; 
    var $default_prefix = "/data1/vhosts";    //Default project location prefix; 
    var $default_module = "test.cn"; 
    var $max_filesize = 2048000; 
    var $request_uri;

    function Receive(){ 
        $this->request_uri = $_SERVER['REQUEST_URI']; 
    } 
    function saveFile(){ 
        //receive data and save 
        $putdata = fopen("php://input", "r");

        $path = $this->getPath($this->request_uri); 
        $fp = fopen($path, 'w'); 
        while($data = fread($putdata, 1024) ){ 
            fwrite($fp, $data); 
        }

        fclose($fp); 
        fclose($putdata);

        //Log The filesize check and limit check 
        if( filesize($path) != $_SERVER['CONTENT_LENGTH'] ){ 
            $this->errorLog( "[warn] " . date("Y-m-d H:i:s")  . " The file's ($path) size dosen't match Server Filesize = " . filesize($path) . "; Put Filesize = " . $_SERVER['CONTENT_LENGTH']. "\r\n" ); 
            header('HTTP/1.1 526 Receive Data Error'); 
        }

        if( filesize($path) > $this->max_filesize ){ 
            $this->errorLog( "[warn] " . date("Y-m-d H:i:s")  . " The file's ($path) size exceed the system limit"); 
        } 
    }

    //Log Error Info 
    function errorLog( $info ){ 
        $f = fopen($this->default_log_file, 'a+'); 
        fwrite($f, $info); 
        flcose($f); 
    }

    function serverLog(){ 
        $f = fopen($this->default_server_info, 'w'); 
        $info = $_SERVER; 
        $str = "The Last Request Server Info:\r\n"; 
        foreach ($info as $key => $value){ 
            $str .= "$key = $value\r\n"; 
        } 
        $str .= $this->getPath($this->request_uri) . "\r\n"; 
        $str .= "PHP_UPLOADED_FILE_NAME=" . $PHP_UPLOADED_FILE_NAME . "\r\n"; 
        fwrite($f , $str); 
        fclose($f); 
    }

    //Log the Request Header info 
    function headerLog(){ 
        $f = fopen($this->default_header_info, 'w'); 
        $info = get_headers(); 
        $str = "The Last Request header Info:\r\n"; 
        foreach ($info as $key => $value){ 
            $str .= "$key = $value\r\n"; 
        } 
        fwrite($f , $str); 
        fclose($f); 
    }

    //get the path where the file should be 
    function getPath($uri){ 
        $module = $this->defalt_module;    //Default storage module

        $referer = $this->request_uri; 
        preg_match('/(?<=\/)(.*?)(?=\/)/s', $referer, $match);

        if( !empty($match) && !empty($match[0]) ){ 
            $module = $match[0]; 
        }

        $path = $this->default_prefix; 
        $path .= '/' . $module . '/htdocs'; 
        $fullpath = substr($uri, strlen($match[0]) + 1, strlen($uri) );

        $arr = explode('/', ltrim($fullpath, '/')); 
        foreach($arr as $v){ 
            if( !strstr($v, '.') ){ 
                $path .= '/' . $v; 
                //exec("echo $path >> dir.txt"); 
                if( !is_dir($path) ){ 
                    //For php > 5.0 
                    //mkdir($path, "0766", true); 
                    mkdir($path, 0766); 
                } 
            }else{ 
                $path .= '/' . $v; 
            } 
        }

        return $path; 
    }

}

$instance = new Receive(); 
$instance->serverLog(); 
//$instance->headerLog(); 
$instance->saveFile();

?>