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<?php
namespace JExtstore\Component\JChat\Administrator\Model;
/**
* @package JCHAT::RECORDER::administrator::components::com_jchat
* @subpackage models
* @author Joomla! Extensions Store
* @copyright (C) 2024 - Joomla! Extensions Store
* @license GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html
*/
defined ( '_JEXEC' ) or die ( 'Restricted access' );
use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Component\ComponentHelper;
use JExtstore\Component\JChat\Administrator\Framework\Model as JChatModel;
use JExtstore\Component\JChat\Administrator\Framework\Exception as JChatException;
/**
* Recorder medias model responsibilities
*
* @package JCHAT::RECORDER::administrator::components::com_jchat
* @subpackage models
* @since 2.9
*/
class RecorderModel extends JChatModel {
/**
* Legge e invia nello stream di output i contenuti del file in chunk,
* ovviando ai problemi di limiti legati alla normale readfile
* @access private
* @param string $nomefile
* @return boolean
*/
private function readfile_chunked($filename) {
$chunksize = 1 * (1024 * 1024); // how many bytes per chunk
$buffer = '';
$cnt = 0;
$handle = fopen ( $filename, 'rb' );
if ($handle === false) {
return false;
}
while ( ! feof ( $handle ) ) {
$buffer = fread ( $handle, $chunksize );
echo $buffer;
@ob_flush ();
flush ();
}
$status = fclose ( $handle );
return $status;
}
/**
* Restituisce la query string costruita per ottenere il wrapped set richiesto in base
* allo userstate, opzionalmente seleziona i campi richiesti
*
* @access private
* @return string
*/
protected function buildListQuery($fields = 'a.*') {
// WHERE
$where = array();
$whereString = null;
//Filtro testo
if($this->state->get('searchword')) {
$where[] = "\n (a.peer1 LIKE " .
$this->dbInstance->quote('%' . $this->state->get('searchword') . '%') .
"\n OR a.peer2 LIKE " .
$this->dbInstance->quote('%' . $this->state->get('searchword'). '%') . ")";
}
//Filtro periodo
if($this->state->get('fromPeriod')) {
$where[] = "\n a.timerecord > " . $this->dbInstance->quote($this->state->get('fromPeriod'));
}
if($this->state->get('toPeriod')) {
$where[] = "\n a.timerecord <= " . $this->dbInstance->quote($this->state->get('toPeriod'));
}
if (count($where)) {
$whereString = "\n WHERE " . implode ("\n AND ", $where);
}
// ORDERBY
if($this->state->get('order')) {
$orderString = "\n ORDER BY " . $this->state->get('order') . " ";
}
//Filtro testo
if($this->state->get('order_dir')) {
$orderString .= $this->state->get('order_dir');
}
$query = "SELECT $fields" .
"\n FROM #__jchat_recordings AS a" .
$whereString .
$orderString;
return $query;
}
/**
* Main get data method
*
* @access public
* @return Object[]
*/
public function getData(): array {
// Build query
$query = $this->buildListQuery ();
try {
$dbQuery = method_exists ( $this->dbInstance, 'createQuery' ) ? $this->dbInstance->createQuery () : $this->dbInstance->getQuery ( true );
$dbQuery->setQuery ( $query )->setLimit ( $this->getState ( 'limit' ), $this->getState ( 'limitstart' ) );
$this->dbInstance->setQuery ( $dbQuery );
$result = $this->dbInstance->loadObjectList ();
} catch ( JChatException $e ) {
$this->app->enqueueMessage ( $e->getMessage (), $e->getExceptionLevel () );
$result = array ();
} catch ( \Exception $e ) {
$jchatException = new JChatException ( $e->getMessage (), 'error' );
$this->app->enqueueMessage ( $jchatException->getMessage (), $jchatException->getExceptionLevel () );
$result = array ();
}
return $result;
}
/**
* Restituisce le select list usate dalla view per l'interfaccia
* @access public
* @return array
*/
public function getFilters(): array {
$lists = [];
return $lists;
}
/**
* Delete entity
*
* @param array $ids
* @access public
* @return bool
*/
public function deleteEntity($ids): bool {
$table = $this->getTable ( $this->getName (), 'Administrator' );
// Ciclo su ogni entity da cancellare
if (is_array ( $ids ) && count ( $ids )) {
foreach ( $ids as $id ) {
try {
$table->load($id);
// Delete the file system media too
$pathToMedias = JPATH_ROOT . '/media/com_jchat/recordings/';
if(file_exists($pathToMedias . $table->title)) {
if(!unlink($pathToMedias . $table->title)) {
throw new JChatException ( Text::_('COM_JCHAT_ERROR_DELETING_MEDIAFILE'), 'error' );
}
}
// Delete the live streaming recording if any
if($table->peer2 == 'livestreaming') {
$pathToLivestreamings = JPATH_ROOT . '/media/com_jchat/livestreaming/archive/';
$titleChunks = explode('_', $table->title);
$liveStreamingId = array_pop($titleChunks);
$dirName = $pathToLivestreamings . $liveStreamingId;
if(file_exists($pathToLivestreamings . $liveStreamingId)) {
array_map('unlink', glob("$dirName/*.*"));
if(!rmdir($dirName)) {
throw new JChatException ( Text::_('COM_JCHAT_ERROR_DELETING_MEDIAFILE'), 'error' );
}
}
}
if (! $table->delete ( $id )) {
throw new JChatException ( $table->getException (), 'error' );
}
} catch ( JChatException $e ) {
$this->setException ( $e );
return false;
} catch ( \Exception $e ) {
$jchatException = new JChatException ( $e->getMessage (), 'error' );
$this->setException ( $jchatException );
return false;
}
}
}
return true;
}
/**
* Download uploaded file message
*
* @access public
* @return boolean
*/
public function downloadEntity($ids = null) {
$table = $this->getTable ( $this->getName (), 'Administrator' );
// Ciclo su ogni entity da cancellare
if (is_array ( $ids ) && count ( $ids )) {
foreach ( $ids as $id ) {
try {
$table->load($id);
// Delete the file system media too
$pathToMedias = JPATH_ROOT . '/media/com_jchat/recordings/';
if(!file_exists($pathToMedias . $table->title)) {
throw new JChatException ( Text::_('COM_JCHAT_NOEXISTS_MEDIAFILE'), 'warning' );
}
$fsize = @filesize ( $pathToMedias . $table->title );
$cont_dis = 'attachment';
$mimeType = 'video/webm';
// required for IE, otherwise Content-disposition is ignored
if (ini_get ( 'zlib.output_compression' )) {
ini_set ( 'zlib.output_compression', 'Off' );
}
header ( "Pragma: public" );
header ( "Cache-Control: must-revalidate, post-check=0, pre-check=0" );
header ( "Expires: 0" );
header ( "Content-Transfer-Encoding: binary" );
header ( 'Content-Disposition:' . $cont_dis . ';' . ' filename="' . $table->title . '";' . ' size=' . $fsize . ';' ); //RFC2183
header ( "Content-Type: " . $mimeType ); // MIME type
header ( "Content-Length: " . $fsize );
if (! ini_get ( 'safe_mode' )) { // set_time_limit doesn't work in safe mode
@set_time_limit ( 0 );
}
// No encoding - we aren't using compression... (RFC1945)
//header("Content-Encoding: none");
//header("Vary: none");
$this->readfile_chunked($pathToMedias . $table->title);
jexit();
} catch ( JChatException $e ) {
$this->setException ( $e );
return false;
} catch ( \Exception $e ) {
$jchatException = new JChatException ( $e->getMessage (), 'error' );
$this->setException ( $jchatException );
return false;
}
}
}
return true;
}
/**
* Class constructor
*
* @access public
* @param $config array
* @return Object&
*/
public function __construct($config = array(), ?MVCFactoryInterface $factory = null) {
parent::__construct ( $config, $factory );
$componentParams = ComponentHelper::getParams($this->option);
$this->setState('cparams', $componentParams);
}
}