<?php
  require_once "../config/config.php";
  require_once INCLUDE_DIR."/users_class.php"; 
  $users = new users_class();
  if($users->IsAdminhavePermission($_SESSION[SESSION_PREFIX.'Admin_UserID'],'Can download backup')==false)
  {
        Redirect('admin_nopermission.php',true);   
  } 
  //$file = $_GET['file']  ;
  /*
  $file = WEB_URL.'/admin/db_backups/'.$_GET['file'];
            // Force the download
            header('Cache-Control: private');
            header('Pragma: private'); 
            header("Content-Disposition: attachment; filename=\"" . basename($file) . "\"");
            header("Content-type: application/force-download");
            header("Content-Transfer-Encoding: Binary");
            //header("Content-Length: " . filesize($file));
            header("Content-Type: application/octet-stream;");
            readfile($file); 
           //Redirect($file);
  */
  $backupfolder = PHYSICAL_DIR.'/admin/db_backups/';
  if(!is__writable($backupfolder))
    {
         $message->SetMessage('Please change <b>/admin/db_backups/</b> folders permission to read and write');
         Redirect('admin_db_manage.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', '');

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

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

// 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 (
  'sql' => 'application/x-sql'
);


####################################################################
###  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('<br><br><h1 style="text-align:center">Internal server error. Please contact system administrator.</h1><br><a href="'.WEB_URL.'/admin/admin_db_restore.php"><h2 style="text-align:center">Back to restore page !</h2></a>');
}

// 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($_GET['file']) || empty($_GET['file'])) {
  die('<br><br><h1 style="text-align:center">Please specify file name for download.</h1><br><a href="'.WEB_URL.'/admin/admin_db_restore.php"><h2 style="text-align:center">Back to restore page !</h2></a>');
}

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

// 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('<br><br><h1 style="text-align:center">File does not exist. Make sure you specified correct file name.</h1><br><a href="'.WEB_URL.'/admin/admin_db_restore.php"><h2 style="text-align:center">Back to restore page !</h2></a>'); 
}

// 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('<br><br><h1 style="text-align:center">Not allowed file type.</h1><br><a href="'.WEB_URL.'/admin/admin_db_restore.php"><h2 style="text-align:center">Back to restore page !</h2></a>'); 
}

// 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);
*/
header('Cache-Control: private');
            header('Pragma: private'); 
            header("Content-Disposition: attachment; filename=\"" . $asfname . "\"");
            header("Content-type: application/force-download");
            header("Content-Transfer-Encoding: Binary");
            //header("Content-Length: " . filesize($file));
            header("Content-Type: application/octet-stream;");
            //readfile($file);
// download
// @readfile($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);
}
 */ 
?>