Nej det har du helt ret i.
<?PHP
class AjaxRequesthandler{
public function handleFileRequest() {
// SCRIPT CONFIGURATION
//------------------------------------------------------------------------------------------
// MEDIA PATH
//
// you can configure these settings to point to video files outside the public html folder.
//------------------------------------------------------------------------------------------
// points to server root
define('XMOOV_PATH_ROOT', '');
// points to the folder containing the video files.
define('XMOOV_PATH_FILES', 'uploads/');
//------------------------------------------------------------------------------------------
// SCRIPT BEHAVIOR
//------------------------------------------------------------------------------------------
//set to TRUE to use bandwidth limiting.
define('XMOOV_CONF_LIMIT_BANDWIDTH', TRUE);
//set to FALSE to prohibit caching of video files.
define('XMOOV_CONF_ALLOW_FILE_CACHE', FALSE);
//------------------------------------------------------------------------------------------
// BANDWIDTH SETTINGS
//
// these settings are only needed when using bandwidth limiting.
//
// bandwidth is limited my sending a limited amount of video data(XMOOV_BW_PACKET_SIZE),
// in specified time intervals(XMOOV_BW_PACKET_INTERVAL).
// avoid time intervals over 1.5 seconds for best results.
//
// you can also control bandwidth limiting via http command using your video player.
// the function getBandwidthLimit($part) holds three preconfigured presets(low, mid, high),
// which can be changed to meet your needs
//------------------------------------------------------------------------------------------
//set how many kilobytes will be sent per time interval
define('XMOOV_BW_PACKET_SIZE', 90);
//set the time interval in which data packets will be sent in seconds.
define('XMOOV_BW_PACKET_INTERVAL', 0.3);
//set to TRUE to control bandwidth externally via http.
define('XMOOV_CONF_ALLOW_DYNAMIC_BANDWIDTH', TRUE);
//------------------------------------------------------------------------------------------
// DYNAMIC BANDWIDTH CONTROL
//------------------------------------------------------------------------------------------
function getBandwidthLimit($part)
{
switch($part)
{
case 'interval' :
switch($_GET[XMOOV_GET_BANDWIDTH])
{
case 'low' :
return 0.5;
break;
case 'mid' :
return 0.5;
break;
case 'high' :
return 0.2;
break;
case 'off' :
return 0;
break;
default :
return XMOOV_BW_PACKET_INTERVAL;
break;
}
break;
case 'size' :
switch($_GET[XMOOV_GET_BANDWIDTH])
{
case 'low' :
return 20;
break;
case 'mid' :
return 40;
break;
case 'high' :
return 90;
break;
default :
return XMOOV_BW_PACKET_SIZE;
break;
}
break;
}
}
//------------------------------------------------------------------------------------------
// INCOMING GET VARIABLES CONFIGURATION
//
// use these settings to configure how video files, seek position and bandwidth settings are accessed by your player
//------------------------------------------------------------------------------------------
define('XMOOV_GET_FILE', $_GET['file']);
define('XMOOV_GET_POSITION', intval($_GET['position']));
define('XMOOV_GET_AUTHENTICATION', 'key');
define('XMOOV_GET_BANDWIDTH', 'bw');
// END SCRIPT CONFIGURATION - do not change anything beyond this point if you do not know what you are doing
//------------------------------------------------------------------------------------------
// PROCESS FILE REQUEST
//------------------------------------------------------------------------------------------
if(isset($_GET[XMOOV_GET_FILE]) && isset($_GET[XMOOV_GET_POSITION]))
{
// PROCESS VARIABLES
# get seek position
$seekPos = intval($_GET[XMOOV_GET_POSITION]);
# get file name
$fileName = htmlspecialchars($_GET[XMOOV_GET_FILE]);
# assemble file path
$file = XMOOV_PATH_ROOT . XMOOV_PATH_FILES . $fileName;
# assemble packet interval
$packet_interval = (XMOOV_CONF_ALLOW_DYNAMIC_BANDWIDTH && isset($_GET[XMOOV_GET_BANDWIDTH])) ? getBandwidthLimit('interval') : XMOOV_BW_PACKET_INTERVAL;
# assemble packet size
$packet_size = ((XMOOV_CONF_ALLOW_DYNAMIC_BANDWIDTH && isset($_GET[XMOOV_GET_BANDWIDTH])) ? getBandwidthLimit('size') : XMOOV_BW_PACKET_SIZE) * 1042;
# security improved by by TRUI
www.trui.net if (!file_exists($file))
{
print('<b>ERROR:</b> xmoov-php could not find (' . $fileName . ') please check your settings.');
exit();
}
if(file_exists($file) && strrchr($fileName, '.') == '.flv' && strlen($fileName) > 2 && !eregi(basename($_SERVER['PHP_SELF']), $fileName) && ereg('^[^./][^/]*$', $fileName))
{
$fh = fopen($file, 'rb') or die ('<b>ERROR:</b> xmoov-php could not open (' . $fileName . ')');
$fileSize = filesize($file) - (($seekPos > 0) ? $seekPos + 1 : 0);
// SEND HEADERS
if(!XMOOV_CONF_ALLOW_FILE_CACHE)
{
# prohibit caching (different methods for different clients)
session_cache_limiter("nocache");
header("Expires: Thu, 19 Nov 1981 08:52:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
header("Pragma: no-cache");
}
# content headers
header("Content-Type: video/x-flv");
header("Content-Disposition: attachment; filename=\"" . $fileName . "\"");
header("Content-Length: " . $fileSize);
# FLV file format header
if($seekPos != 0)
{
print('FLV');
print(pack('C', 1));
print(pack('C', 1));
print(pack('N', 9));
print(pack('N', 9));
}
# seek to requested file position
fseek($fh, $seekPos);
# output file
while(!feof($fh))
{
# use bandwidth limiting - by Terry
if(XMOOV_CONF_LIMIT_BANDWIDTH && $packet_interval > 0)
{
# get start time
list($usec, $sec) = explode(' ', microtime());
$time_start = ((float)$usec + (float)$sec);
# output packet
print(fread($fh, $packet_size));
# get end time
list($usec, $sec) = explode(' ', microtime());
$time_stop = ((float)$usec + (float)$sec);
# wait if output is slower than $packet_interval
$time_difference = $time_stop - $time_start;
if($time_difference < (float)$packet_interval)
{
usleep((float)$packet_interval * 1000000 - (float)$time_difference * 1000000);
}
}
else
{
# output file without bandwidth limiting
print(fread($fh, filesize($file)));
}
}
}
}
}
}
/**
* Make a new instance of AjaxRequesthandler class
*
* @var AjaxRequesthandler
* @var handleRequest
* @var sendReply
*/
$rh = new AjaxRequesthandler();
$rh->handleFileRequest();
?>
