axa

محافظت از فایل ها توسط کد php

2 پست در این موضوع قرار دارد

ارسال شده در (ویرایش شده)

سلام دوستان

من بعد از کلی جستجو در سایتهای خارجی، کد خوبی را پیدا کردم که بدون نیاز به دیتایس از فایلها محافظت میکنه

و امکان ‌hotlink هم داره که بر امنیتش  اضافه میکنه

اسکریپتهایی هستند که این کاررا انجام میدند اما چون هاست دانلود من امکان افزودن دیتابیس را نداره و پشتیبانی هم ساپورت نمیکنه

این کد بهترین کد برای اکثر دوستان مثل من هست

ولی متاسفانه مشکل resume شدن دانلود را نداره

در ادامه

 

<?php

###############################################################
# File Download 1.31
###############################################################
# Visit http://www.zubrag.com/scripts/ for updates
###############################################################
# Sample call:
#    download.php?f=phptutorial.zip
#
# Sample call (browser will try to save with new file name):
#    download.php?f=phptutorial.zip&fc=php123tutorial.zip
###############################################################

// Allow direct file download (hotlinking)?
// Empty - allow hotlinking
// If set to nonempty value (Example: example.com) will only allow downloads when referrer contains this text
define('ALLOWED_REFERRER', '');

// Download folder, i.e. folder where you keep all files for download.
// MUST end with slash (i.e. "/" )
define('BASE_DIR','/home/user/downloads/');

// log downloads?  true/false
define('LOG_DOWNLOADS',true);

// log file name
define('LOG_FILE','downloads.log');

// Allowed extensions list in format 'extension' => 'mime type'
// If myme type is set to empty string then script will try to detect mime type 
// itself, which would only work if you have Mimetype or Fileinfo extensions
// installed on server.
$allowed_ext = array (

  // archives
  'zip' => 'application/zip',

  // documents
  'pdf' => 'application/pdf',
  'doc' => 'application/msword',
  'xls' => 'application/vnd.ms-excel',
  'ppt' => 'application/vnd.ms-powerpoint',
  
  // executables
  'exe' => 'application/octet-stream',

  // images
  'gif' => 'image/gif',
  'png' => 'image/png',
  'jpg' => 'image/jpeg',
  'jpeg' => 'image/jpeg',

  // audio
  'mp3' => 'audio/mpeg',
  'wav' => 'audio/x-wav',

  // video
  'mpeg' => 'video/mpeg',
  'mpg' => 'video/mpeg',
  'mpe' => 'video/mpeg',
  'mov' => 'video/quicktime',
  'avi' => 'video/x-msvideo'
);



####################################################################
###  DO NOT CHANGE BELOW
####################################################################

// If hotlinking not allowed then make hackers think there are some server problems
if (ALLOWED_REFERRER !== ''
&& (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)
) {
  die("Internal server error. Please contact system administrator.");
}

// Make sure program execution doesn't time out
// Set maximum script execution time in seconds (0 means no limit)
set_time_limit(0);

if (!isset($_GET['f']) || empty($_GET['f'])) {
  die("Please specify file name for download.");
}

// Nullbyte hack fix
if (strpos($_GET['f'], "\0") !== FALSE) die('');

// Get real file name.
// Remove any path info to avoid hacking by adding relative path, etc.
$fname = basename($_GET['f']);

// Check if the file exists
// Check in subfolders too
function find_file ($dirname, $fname, &$file_path) {

  $dir = opendir($dirname);

  while ($file = readdir($dir)) {
    if (empty($file_path) && $file != '.' && $file != '..') {
      if (is_dir($dirname.'/'.$file)) {
        find_file($dirname.'/'.$file, $fname, $file_path);
      }
      else {
        if (file_exists($dirname.'/'.$fname)) {
          $file_path = $dirname.'/'.$fname;
          return;
        }
      }
    }
  }

} // find_file

// get full file path (including subfolders)
$file_path = '';
find_file(BASE_DIR, $fname, $file_path);

if (!is_file($file_path)) {
  die("File does not exist. Make sure you specified correct file name."); 
}

// file size in bytes
$fsize = filesize($file_path); 

// file extension
$fext = strtolower(substr(strrchr($fname,"."),1));

// check if allowed extension
if (!array_key_exists($fext, $allowed_ext)) {
  die("Not allowed file type."); 
}

// get mime type
if ($allowed_ext[$fext] == '') {
  $mtype = '';
  // mime type is not set, get from server settings
  if (function_exists('mime_content_type')) {
    $mtype = mime_content_type($file_path);
  }
  else if (function_exists('finfo_file')) {
    $finfo = finfo_open(FILEINFO_MIME); // return mime type
    $mtype = finfo_file($finfo, $file_path);
    finfo_close($finfo);  
  }
  if ($mtype == '') {
    $mtype = "application/force-download";
  }
}
else {
  // get mime type defined by admin
  $mtype = $allowed_ext[$fext];
}

// Browser will try to save file with this filename, regardless original filename.
// You can override it if needed.

if (!isset($_GET['fc']) || empty($_GET['fc'])) {
  $asfname = $fname;
}
else {
  // remove some bad chars
  $asfname = str_replace(array('"',"'",'\\','/'), '', $_GET['fc']);
  if ($asfname === '') $asfname = 'NoName';
}

// set headers
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: $mtype");
header("Content-Disposition: attachment; filename=\"$asfname\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $fsize);

// download
// @readfile($file_path);
$file = @fopen($file_path,"rb");
if ($file) {
  while(!feof($file)) {
    print(fread($file, 1024*8));
    flush();
    if (connection_status()!=0) {
      @fclose($file);
      die();
    }
  }
  @fclose($file);
}

// log downloads
if (!LOG_DOWNLOADS) die();

$f = @fopen(LOG_FILE, 'a+');
if ($f) {
  @fputs($f, date("m.d.Y g:ia")."  ".$_SERVER['REMOTE_ADDR']."  ".$fname."\n");
  @fclose($f);
}

?>

 

ولی متاسفانه مشکلش نداشتن resume در حین دانلود هست

 

کدی پیدا کردم که قابلیت resume را داره


<?php
$file = 'File address';
if (file_exists($file)) {
date_default_timezone_set('GMT');
//
$data_file = $file;
$data_size = filesize($data_file); //
$mime = 'application/otect-stream'; //
$filename = basename($data_file); //
//
if (isset($_SERVER['HTTP_RANGE']) || isset($HTTP_SERVER_VARS['HTTP_RANGE'])) {
    $ranges_str = (isset($_SERVER['HTTP_RANGE']))?$_SERVER['HTTP_RANGE']:$HTTP_SERVER_VARS['HTTP_RANGE'];
    $ranges_arr = explode('-', substr($ranges_str, strlen('bytes=')));
    //
    if ((intval($ranges_arr[0]) >= intval($ranges_arr[1]) && $ranges_arr[1] != "" && $ranges_arr[0] != "" )
        || ($ranges_arr[1] == "" && $ranges_arr[0] == "")
    ) {
        //
        $ranges_arr[0] = 0;
        $ranges_arr[1] = $data_size - 1;
    }
} else {
    $ranges_arr[0] = 0;
    $ranges_arr[1] = $data_size - 1;
}
//
$file = fopen($data_file, 'rb');
$start = $stop = 0;
if ($ranges_arr[0] === "") { 
    //
    $stop = $data_size - 1;
    $start = $data_size - intval($ranges_arr[1]);
} elseif ($ranges_arr[1] === "") { //No last
    //
    $start = intval($ranges_arr[0]);
    $stop = $data_size - 1;
} else {
    // 
    $stop = intval($ranges_arr[1]);
    $start = intval($ranges_arr[0]);
}    
//
fseek($file, $start, SEEK_SET);
$start = ftell($file);
fseek($file, $stop, SEEK_SET);
$stop = ftell($file);
$data_len = $stop - $start;
//
if (isset($_SERVER['HTTP_RANGE']) || isset($HTTP_SERVER_VARS['HTTP_RANGE'])) {
    header('HTTP/1.0 206 Partial Content');
    header('Status: 206 Partial Content');
}
header('Accept-Ranges: bytes');
header('Content-type: ' . $mime);
header('Content-Disposition: attachment; filename="' . $filename . '"'); 
header("Content-Range: bytes $start-$stop/" . $data_size );
header("Content-Length: " . ($data_len + 1));
//
fseek($file, $start, SEEK_SET);
$bufsize = 2048000;
ignore_user_abort(true);
@set_time_limit(0);
while (!(connection_aborted() || connection_status() == 1) && $data_len > 0) {
    echo fread($file, $bufsize);
    $data_len -= $bufsize;
    flush();
}
fclose($file);
exit;
}else{
echo "not found";}
?>

 

 

چطور میشه کدهایی که مریوط به resume هست را در کد اول قرار داد

لطفا به من کمک کنین

پیشاپیش ممنون

ویرایش شده در توسط axa
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سلام

دوستان میتونید از کد زیر استفاده کنید

 

<?php 

// Allow direct file download (hotlinking)?
// Empty - allow hotlinking
// If set to nonempty value (Example: example.com) will only allow downloads when referrer contains this text
define('ALLOWED_REFERRER', '');

// If hotlinking not allowed then make hackers think there are some server problems
if (ALLOWED_REFERRER !== ''
&& (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)
) {
  die("Internal server error. Please contact system administrator.");
}


// get the file request, throw error if nothing supplied
// hide notices

@ini_set('error_reporting', E_ALL & ~ E_NOTICE);

/* turn off compression on the server 
@apache_setenv('no-gzip', 1);
@ini_set('zlib.output_compression', 'Off');


/**/
if(!isset($_REQUEST['f']) || empty($_REQUEST['f'])) 
{
    header("HTTP/1.0 400 Bad Request");
    exit;
}

// sanitize the file request, keep just the name and extension
// also, replaces the file location with a preset one ('./myfiles/' in this example)
$file_path  = $_REQUEST['f'];
$path_parts = pathinfo($file_path);
$file_name  = $path_parts['basename'];
$file_ext   = $path_parts['extension'];
$file_path  = './myfiles/' . $file_name;

// allow a file to be streamed instead of sent as an attachment
$is_attachment = isset($_REQUEST['stream']) ? false : true;

// make sure the file exists
if (is_file($file_path))
{
    $file_size  = filesize($file_path);
    $file = @fopen($file_path,"rb");
    if ($file)
    {
        // set the headers, prevent caching
        header("Pragma: public");
        header("Expires: -1");
        header("Cache-Control: public, must-revalidate, post-check=0, pre-check=0");
        header("Content-Disposition: attachment; filename=\"$file_name\"");

        // set appropriate headers for attachment or streamed file
        if ($is_attachment)
                header("Content-Disposition: attachment; filename=\"$file_name\"");
        else
                header('Content-Disposition: inline;');

        // set the mime type based on extension, add yours if needed.
        $ctype_default = "application/octet-stream";
        $content_types = array(
				// archives
				'zip' => 'application/zip',

				// documents
				'pdf' => 'application/pdf',
				'doc' => 'application/msword',
				'xls' => 'application/vnd.ms-excel',
				'ppt' => 'application/vnd.ms-powerpoint',

				// executables
				'exe' => 'application/octet-stream',

				// images
				'gif' => 'image/gif',
				'png' => 'image/png',
				'jpg' => 'image/jpeg',
				'jpeg' => 'image/jpeg',

				// audio
				'mp3' => 'audio/mpeg',
				'wav' => 'audio/x-wav',

				// video
				'mpeg' => 'video/mpeg',
				'mpg' => 'video/mpeg',
				'mpe' => 'video/mpeg',
				'mov' => 'video/quicktime',
				'avi' => 'video/x-msvideo',
        );
        $ctype = isset($content_types[$file_ext]) ? $content_types[$file_ext] : $ctype_default;
        header("Content-Type: " . $ctype);

        //check if http_range is sent by browser (or download manager)
        if(isset($_SERVER['HTTP_RANGE']))
        {
            list($size_unit, $range_orig) = explode('=', $_SERVER['HTTP_RANGE'], 2);
            if ($size_unit == 'bytes')
            {
                //multiple ranges could be specified at the same time, but for simplicity only serve the first range
                //http://tools.ietf.org/id/draft-ietf-http-range-retrieval-00.txt
                list($range, $extra_ranges) = explode(',', $range_orig, 2);
            }
            else
            {
                $range = '';
                header('HTTP/1.1 416 Requested Range Not Satisfiable');
                exit;
            }
        }
        else
        {
            $range = '';
        }

        //figure out download piece from range (if set)
        list($seek_start, $seek_end) = explode('-', $range, 2);

        //set start and end based on range (if set), else set defaults
        //also check for invalid ranges.
        $seek_end   = (empty($seek_end)) ? ($file_size - 1) : min(abs(intval($seek_end)),($file_size - 1));
        $seek_start = (empty($seek_start) || $seek_end < abs(intval($seek_start))) ? 0 : max(abs(intval($seek_start)),0);

        //Only send partial content header if downloading a piece of the file (IE workaround)
        if ($seek_start > 0 || $seek_end < ($file_size - 1))
        {
            header('HTTP/1.1 206 Partial Content');
            header('Content-Range: bytes '.$seek_start.'-'.$seek_end.'/'.$file_size);
            header('Content-Length: '.($seek_end - $seek_start + 1));
        }
        else
          header("Content-Length: $file_size");

        header('Accept-Ranges: bytes');

        set_time_limit(0);
        fseek($file, $seek_start);

        while(!feof($file)) 
        {
            print(@fread($file, 1024*8));
            ob_flush();
            flush();
            if (connection_status()!=0) 
            {
                @fclose($file);
                exit;
            }           
        }

        // file save was a success
        @fclose($file);
        exit;
    }
    else 
    {
        // file couldn't be opened
        header("HTTP/1.0 500 Internal Server Error");
        exit;
    }
}
else
{
    // file does not exist
    header("HTTP/1.0 404 Not Found");
    exit;
}

 

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