* sessid : string, session ID
* id : string, global unique ID of requested file
*
*
* On success, returns HTTP return code 200 and requested file.
*
* On errors, returns HTTP return code >200
* The possible error codes are:
*
* - 400 - Incorrect parameters passed to method
* - 403 - Access denied
* - 404 - File not found
* - 500 - Application error
*
*
*/
require_once(dirname(__FILE__).'/../../conf.php');
require_once('DB.php');
require_once(dirname(__FILE__).'/../LocStor.php');
require_once(dirname(__FILE__).'/../MetaData.php');
$CC_DBC = DB::connect($CC_CONFIG['dsn'], TRUE);
$CC_DBC->setErrorHandling(PEAR_ERROR_RETURN);
$CC_DBC->setFetchMode(DB_FETCHMODE_ASSOC);
$locStor = new LocStor();
function http_error($code, $err)
{
header("HTTP/1.1 $code");
header("Content-type: text/plain; charset=UTF-8");
echo "$err\r\n";
exit;
}
/**
* This function encodes an filename to
* be transferred via HTTP header.
*
* @param string $p_string utf8 filename
* @return string HTTP header encoded filename
*/
function sg_2hexstring($p_string)
{
for ($x=0; $x < strlen($p_string); $x++) {
$return .= '%' . bin2hex($p_string[$x]);
}
return $return;
}
// parameter checking:
if (preg_match("|^[0-9a-fA-F]{32}$|", $_REQUEST['sessid'])) {
$sessid = $_REQUEST['sessid'];
} else {
http_error(400, "Error on sessid parameter. ({$_REQUEST['sessid']})");
}
if (preg_match("|^[0-9a-fA-F]{16}$|", $_REQUEST['id'])) {
$gunid = $_REQUEST['id'];
} else {
http_error(400, "Error on id parameter. ({$_REQUEST['id']})");
}
// stored file recall:
$ac = StoredFile::RecallByGunid($gunid);
if (PEAR::isError($ac)) {
switch ($ac->getCode()) {
case GBERR_DENY:
http_error(403, "403 ".$ac->getMessage());
case GBERR_FILENEX:
case GBERR_FOBJNEX:
http_error(404, "404 File not found");
default:
http_error(500, "500 ".$ac->getMessage());
}
}
$lid = BasicStor::IdFromGunid($gunid);
if (PEAR::isError($lid)) {
http_error(500, $lid->getMessage());
}
if (($res = BasicStor::Authorize('read', $lid, $sessid)) !== TRUE) {
http_error(403, "403 Access denied");
}
$ftype = BasicStor::GetObjType($lid);
if (PEAR::isError($ftype)) {
http_error(500, $ftype->getMessage());
}
switch ($ftype) {
case "audioclip":
$realFname = $ac->getRealFileName();
$mime = $ac->getMime();
$md = new MetaData($ac->getGunId(), null);
$fileName = $md->getMetadataValue('dc:title').'.'.$ac->getFileExtension();
header("Content-type: $mime");
header("Content-length: ".filesize($realFname));
header("Content-Disposition: attachment; filename*=".sg_2hexstring($fileName).";");
readfile($realFname);
break;
case "webstream":
$url = $locStor->bsGetMetadataValue($lid, 'ls:url');
if (empty($url)) {
http_error(500, "Unable to get ls:url value");
}
$txt = "Location: $url";
header($txt);
// echo "$txt\n";
break;
case "playlist";
// $md = $locStor->bsGetMetadata($ac->getId(), $sessid);
$md = $locStor->getAudioClip($sessid, $gunid);
// header("Content-type: text/xml");
header("Content-type: application/smil");
echo $md;
break;
default:
// var_dump($ftype);
http_error(500, "500 Unknown ftype ($ftype)");
}
?>