note 72716 added to function.fread
| From: | tchapin at gmail dot com | Date: | Tue, 30 Jan 2007 22:27:57 +0000 |
| Subject: | note 72716 added to function.fread | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-122378@lists.php.net to get a copy of this message | ||
<?php
// Usage: <a href="download.php?file=test.txt&category=test">Download</a>
// Path to downloadable files (will not be revealed to users so they will never know your
file's real address)
$hiddenPath = "secretfiles/";
// VARIABLES
if (!empty($_GET['file'])){
$file = str_replace('%20', ' ', $_GET['file']);
$category = (!empty($_GET['category'])) ? $_GET['category'] . '/' :
'';
}
$file_real = $hiddenPath . $category . $file;
$ip = $_SERVER['REMOTE_ADDR'];
// Check to see if the download script was called
if (basename($_SERVER['PHP_SELF']) == 'download3.php'){
if ($_SERVER['QUERY_STRING'] != null){
// HACK ATTEMPT CHECK
// Make sure the request isn't escaping to another directory
if (substr($file, 0, 1) == '.' || strpos($file, '..') > 0 || substr($file,
0, 1) == '/' || strpos($file, '/') > 0){
// Display hack attempt error
echo("Hack attempt detected!");
die();
}
// If requested file exists
if (file_exists($file_real)){
// Get extension of requested file
$extension = strtolower(substr(strrchr($file, "."), 1));
// Determine correct MIME type
switch($extension){
case "asf": $type = "video/x-ms-asf"; break;
case "avi": $type = "video/x-msvideo"; break;
case "exe": $type = "application/octet-stream"; break;
case "mov": $type = "video/quicktime"; break;
case "mp3": $type = "audio/mpeg"; break;
case "mpg": $type = "video/mpeg"; break;
case "mpeg": $type = "video/mpeg"; break;
case "rar": $type = "encoding/x-compress"; break;
case "txt": $type = "text/plain"; break;
case "wav": $type = "audio/wav"; break;
case "wma": $type = "audio/x-ms-wma"; break;
case "wmv": $type = "video/x-ms-wmv"; break;
case "zip": $type = "application/x-zip-compressed"; break;
default: $type = "application/force-download"; break;
}
// Fix IE bug [0]
$header_file = (strstr($_SERVER['HTTP_USER_AGENT'], 'MSIE')) ?
preg_replace('/\./', '%2e', $file, substr_count($file, '.') - 1) :
$file;
// Prepare headers
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public", false);
header("Content-Description: File Transfer");
header("Content-Type: " . $type);
header("Accept-Ranges: bytes");
header("Content-Disposition: attachment; filename=\"" . $header_file .
"\";");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . filesize($file_real));
// Send file for download
if ($stream = fopen($file_real, 'rb')){
while(!feof($stream) && connection_status() == 0){
//reset time limit for big files
set_time_limit(0);
print(fread($stream,1024*8));
flush();
}
fclose($stream);
}
}else{
// Requested file does not exist (File not found)
echo("Requested file does not exist");
die();
}
}
}
?>
----
Server IP: 64.71.164.2
Probable Submitter: 68.14.244.203
----
Manual Page -- http://www.php.net/manual/en/function.fread.php
Edit -- https://master.php.net/note/edit/72716
Del: integrated -- https://master.php.net/note/delete/72716/integrated
Del: useless -- https://master.php.net/note/delete/72716/useless
Del: bad code -- https://master.php.net/note/delete/72716/bad+code
Del: spam -- https://master.php.net/note/delete/72716/spam
Del: non-english -- https://master.php.net/note/delete/72716/non-english
Del: in docs -- https://master.php.net/note/delete/72716/in+docs
Del: other reasons-- https://master.php.net/note/delete/72716
Reject -- https://master.php.net/note/reject/72716
Search -- https://master.php.net/manage/user-notes.php