کد:
<?
//sample filename = Hamed/myfile.zip
$file_path = $_REQUEST['filename'];
list($username,$file_name) = explode("/",$file_path);
$member_info = checkLogin(); // -1 means user is not login
if($member_info != -1)
$LoginSuccessful = true;
else
{
$LoginSuccessful = false;
$Logout = false;
}
$CurrentUrl = 'http://' . $_SERVER['HTTP_HOST'] . '/download.php';
// if user send the username and password
if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])){
$usr = $_SERVER['PHP_AUTH_USER'];
$pwd = $_SERVER['PHP_AUTH_PW'];
$member_info = login($usr,$pwd,1);
if($member_info != -1)
$LoginSuccessful = true;
else
$LoginSuccessful = false;
if ($usr == 'reset' && $pwd == 'reset' && isset($_GET['Logout'])){
$Logout = true;
}
}
if ($Logout){
print 'You are now logged out.';
print '<br/>';
print '<a href="http://'.$CurrentUrl.'">Login again</a>';
}
elseif ($LoginSuccessful){
downloadFile("files/$file_path",$file_name,900,false);
}
else
{
header('WWW-Authenticate: Basic realm="Top-secret area"');
header('HTTP/1.0 401 Unauthorized');
print "Sorry, login failed!\n";
print "<br/>";
print '<a href="http://' . $CurrentUrl . '">Try again</a>';
}
function downloadFile($fileLocation,$fileName,$maxSpeed = 100,$doStream = false){
if (connection_status()!=0) return(false);
$extension = strtolower(end(explode('.',$fileName)));
$fileTypes['swf'] = 'application/x-shockwave-flash';
$fileTypes['pdf'] = 'application/pdf';
$fileTypes['exe'] = 'application/octet-stream';
$fileTypes['zip'] = 'application/zip';
$fileTypes['doc'] = 'application/msword';
$fileTypes['xls'] = 'application/vnd.ms-excel';
$fileTypes['ppt'] = 'application/vnd.ms-powerpoint';
$fileTypes['gif'] = 'image/gif';
$fileTypes['png'] = 'image/png';
$fileTypes['jpeg'] = 'image/jpg';
$fileTypes['jpg'] = 'image/jpg';
$fileTypes['rar'] = 'application/rar';
$fileTypes['ra'] = 'audio/x-pn-realaudio';
$fileTypes['ram'] = 'audio/x-pn-realaudio';
$fileTypes['ogg'] = 'audio/x-pn-realaudio';
$fileTypes['wav'] = 'video/x-msvideo';
$fileTypes['wmv'] = 'video/x-msvideo';
$fileTypes['avi'] = 'video/x-msvideo';
$fileTypes['asf'] = 'video/x-msvideo';
$fileTypes['divx'] = 'video/x-msvideo';
$fileTypes['mp3'] = 'audio/mpeg';
$fileTypes['mp4'] = 'audio/mpeg';
$fileTypes['mpeg'] = 'video/mpeg';
$fileTypes['mpg'] = 'video/mpeg';
$fileTypes['mpe'] = 'video/mpeg';
$fileTypes['mov'] = 'video/quicktime';
$fileTypes['swf'] = 'video/quicktime';
$fileTypes['3gp'] = 'video/quicktime';
$fileTypes['m4a'] = 'video/quicktime';
$fileTypes['aac'] = 'video/quicktime';
$fileTypes['m3u'] = 'video/quicktime';
$contentType = $fileTypes[$extension];
header("Cache-Control: public");
header("Content-Transfer-Encoding: binary\n");
header('Content-Type: $contentType');
$contentDisposition = 'attachment';
if($doStream == true){
$array_listen = array('mp3','m3u','m4a','mid','ogg','ra','ram','wm',
'wav','wma','aac','3gp','avi','mov','mp4','mpeg','mpg','swf','wmv','divx','asf');
if(in_array($extension,$array_listen)){
$contentDisposition = 'inline';
}
}
if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {
$fileName= preg_replace('/\./', '%2e', $fileName, substr_count($fileName,
'.') - 1);
header("Content-Disposition: $contentDisposition;filename=\"$fileName\"");
} else {
header("Content-Disposition: $contentDisposition;filename=\"$fileName\"");
}
header("Accept-Ranges: bytes");
$range = 0;
$size = filesize($fileLocation);
if(isset($_SERVER['HTTP_RANGE'])) {
list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
str_replace($range, "-", $range);
$size2=$size-1;
$new_length=$size-$range;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range$size2/$size");
} else {
$size2=$size-1;
header("Content-Range: bytes 0-$size2/$size");
header("Content-Length: ".$size);
}
if ($size == 0 ) { die('Zero byte file! Aborting download');}
set_magic_quotes_runtime(0);
$fp=fopen("$fileLocation","rb");
fseek($fp,$range);
while(!feof($fp) and (connection_status()==0))
{
print(fread($fp,1024*$maxSpeed));
flush();
ob_flush();
sleep(1);
}
fclose($fp);
return((connection_status()==0) and !connection_aborted());
}
?>
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