Code: Select all
function download() {
global $_GET;
//Gather relevent info about file
$file = "/user/dac420/tts/incoming/".$_GET['name'];
$len = filesize($file);
$filename = basename($file);
$file_extension = strtolower(substr(strrchr($filename,"."),1));
// Determine correct MIME type
switch($file_extension){
case "asf": $ctype = "video/x-ms-asf"; break;
case "avi": $ctype = "video/x-msvideo"; break;
case "exe": $ctype = "application/octet-stream"; break;
case "mov": $ctype = "video/quicktime"; break;
case "mp3": $ctype = "audio/mpeg"; break;
case "mpg": $ctype = "video/mpeg"; break;
case "mpeg": $ctype = "video/mpeg"; break;
case "rar": $ctype = "encoding/x-compress"; break;
case "txt": $ctype = "text/plain"; break;
case "wav": $ctype = "audio/wav"; break;
case "wma": $ctype = "audio/x-ms-wma"; break;
case "wmv": $ctype = "video/x-ms-wmv"; break;
case "zip": $ctype = "application/x-zip-compressed"; break;
default: $ctype = "application/force-download"; break;
}
//Begin writing headers
header("Cache-Control:");
header("Cache-Control: public");
//Use the switch-generated Content-Type
header("Content-Type: $ctype");
if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {
# workaround for IE filename bug with multiple periods / multiple dots in filename
# that adds square brackets to filename - eg. setup.abc.exe becomes setup[1].abc.exe
$iefilename = preg_replace('/\./', '%2e', $filename, substr_count($filename, '.') - 1);
header("Content-Disposition: attachment; filename=\"$iefilename\"");
} else {
header("Content-Disposition: attachment; filename=\"$filename\"");
}
header("Accept-Ranges: bytes");
$size=filesize($file);
//check if http_range is sent by browser (or download manager)
if(isset($_SERVER['HTTP_RANGE'])) {
list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
//if yes, download missing part
str_replace($range, "-", $range);
$size2=$size-1;
$new_length=$size2-$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);
}
//open the file
$fp=fopen("$file","rb");
//seek to start of missing part
fseek($fp,$range);
//start buffered download
while(!feof($fp)){
//reset time limit for big files
set_time_limit(0);
print(fread($fp,filesize($file)));
flush();
ob_flush();
}
fclose($fp);
exit;
}