I have some larger files which I need to share with people and to make it easier for them (and for the fun of developing it) I am developing a small browser-based FTP client. It's nothing more than the standard functions in PHP.
Yesterday I made a question here about how to download AVI files to the client and I found this function to do so:
<?php
/* Tutorial by AwesomePHP.com -> www.AwesomePHP.com */
/* Function: download with resume/speed/stream options */
/*
Parametrs: downloadFile(File Location, File Name,
max speed, is streaming
If streaming - movies will show as movies, images as images
instead of download prompt
*/
function downloadFile($fileLocation,$fileName,$maxSpeed = 100,$doStream =
false){
if (connection_status()!=0) return(false);
$extension = strtolower(end(explode('.',$fileName)));
/* List of File Types */
$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
");
header('Content-Type: $contentType');
$contentDisposition = 'attachment';
if($doStream == true){
/* extensions to stream */
$array_listen = array('mp3','m3u','m4a','mid','ogg','ra','ram','wm',
'wav','wma','aac','3gp','avi','mov','mp4','mpeg','mpg','swf','wmv','divx','asf');
if(in_array($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($fp) and (connection_status()==0))
{
set_time_limit(0);
print(fread($fp,1024*$maxSpeed));
flush();
ob_flush();
sleep(1);
}
fclose($fp);
return((connection_status()==0) and !connection_aborted());
}
/* Implementation */
downloadFile('fileLocation','fileName.ext',900,false);
?>
Now my issue is that when downloading large files (about 800 MB) I am only getting half of the file (about 440 MB) and I have no idea why this is. Can anyone tell me what I am doing wrong or does anyone have an idea what I can do different?
As mentioned, I use this function combined with my script below.
require_once 'func_downloadFile.php';
// Get filename
$filename = explode("/", $_GET['file']);
$filename = $filename[count($filename)-1];
$file_path = "downloads/" . $filename;
if(file_exists($file_path)) {
downloadFile($file_path, $filename, 900, false);
}
else {
echo "File does not exist.";
}
First the file is downloaded from my NAS onto my webserver and then sent to the client. If I use my script for downloading to the client I am only getting half of the file but if I download the file from my NAS to my webserver, then log into tmy webserver through and FTP client and download the file, I will get the whole file. So the issue is when sending from webserver to client (which is what downloadFile() does)
EDIT: I tried checking if safe_mode was on using if(ini_get('safe_mode')){
which returned false. Therefore I tried adding the two lines below to set the timeout to unlimited but the result is the same.
ini_set('max_execution_time', 0);
set_time_limit(0);
