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<?php
namespace JExtstore\Component\JChat\Site\Model;
/**
* @package JCHAT::EXPORT::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\Factory;
use JExtstore\Component\JChat\Administrator\Framework\Model as JChatModel;
use JExtstore\Component\JChat\Administrator\Framework\Helpers\Users as JChatHelpersUsers;
use JExtstore\Component\JChat\Administrator\Framework\Helpers\Messages as JChatHelpersMessages;
/**
* Save conversation model public responsibilities
*
* @package JCHAT::EXPORT::components::com_jchat
* @subpackage models
* @since 1.0
*/
interface IExportModel {
/**
* Get data to export and send to output buffer, no view needed
*
* @access public
* @param int $userID
* @param int $oldestMessageID
* @return void
*/
public function getDataMessaging($fromLoggedID, $oldestMessageID);
}
/**
* Save conversation model
*
* @package JCHAT::EXPORT::components::com_jchat
* @subpackage models
* @since 1.0
*/
class ExportModel extends JChatModel implements IExportModel{
/**
* @access private
* @var Object&
*/
private $userString;
/**
* @access private
* @var Object&
*/
private $myUserObject;
/**
* @access private
* @var Object&
*/
private $nameType;
/**
* @access private
* @var Object&
*/
private $userConversation;
/**
* SESSION array reference
* @access private
* @var array&
*/
private $session;
/**
* SESSION array reference
* @access private
* @var array&
*/
private $componentConfig;
/**
* User session table Object
* @access private
* @var Object &
*/
private $userSessionTable;
/**
* Get data to export and send to output buffer, no view needed
*
* @access public
* @param array $conversation
* @return array
*/
public function getData($conversation = null): array {
// Standard load conversation by session
if(!$conversation) {
$userChatID = $this->getState('userChatId');
// Try to load other user conversation user name if logged in
if($userChatID != 'wall') {
$this->userSessionTable->load($userChatID);
$otherUser = Factory::getContainer()->get(\Joomla\CMS\User\UserFactoryInterface::class)->loadUserById($this->userSessionTable->userid);
if(!$this->userConversation = $otherUser->{$this->nameType}) {
$this->userConversation = JChatHelpersUsers::generateRandomGuestNameSuffix($this->userSessionTable->session_id, $this->componentConfig);
}
} else {
$userChatID = 'wall';
$this->userConversation = '-groupchat-';
}
$conversation = $this->session['jchat_user_' . $userChatID];
} else {
// Render explicit conversation by private messaging
}
$exportConversationString = '';
if(is_array($conversation)) {
foreach ($conversation as $message) {
// Ensure that the message is valid
if(!isset($message['message'])) {
continue;
}
// Decisione sul contenuto del messaggio
switch (@$message['type']){
case 'file':
$renderedMessage = 'FILE[' . $message['message'] . ']';
break;
case 'message':
default:
$renderedMessage = JChatHelpersMessages::purifyMessage($message['message'], $this->componentConfig);
break;
}
// Decisione sul sender del messaggio
if(!isset($message['self'])) {
$message['self'] = (bool)($message['fromuserid'] == $this->myUserObject->id);
}
if(!(bool)$message['self']) {
if($this->userConversation !== '-groupchat-') {
$sender = $this->userConversation;
} else {
// Get sender from message at the moment of sending, to get always last if changed it would require re-evaluation for each message here
$sender = $message['fromuser'];
}
} else {
$sender = $this->userString;
}
$exportConversationString .= $sender . ": " . $renderedMessage . PHP_EOL;
}
}
// Export file txt
$cont_dis = 'attachment';
$mimeType = 'text/plain';
$filename = $this->userString . '-' . $this->userConversation . '-' . date('Y-m-d') . '.txt';
// required for IE, otherwise Content-disposition is ignored
if (ini_get ( 'zlib.output_compression' )) {
ini_set ( 'zlib.output_compression', 'Off' );
}
$size = strlen($exportConversationString);
$mod_date = date ( 'r' );
//Output del file
header ( "Pragma: public" );
header ( "Cache-Control: must-revalidate, post-check=0, pre-check=0" );
header ( "Expires: 0" );
header ( 'Content-Disposition:' . $cont_dis . ';' . ' filename="' . $filename . '";' . ' modification-date="' . $mod_date . '";' . ' size=' . $size . ';' ); //RFC2183
header ( "Content-Type: " . $mimeType ); // MIME type
header ( "Content-Length: " . $size );
echo $exportConversationString;
jexit();
// Dummy return for type hinting compliance with the base model class
return array();
}
/**
* Get data to export and send to output buffer, no view needed
*
* @access public
* @param int $userID
* @param int $oldestMessageID
* @return void
*/
public function getDataMessaging($fromLoggedID, $oldestMessageID): void {
// Load the other username
$otherUserObject = Factory::getContainer()->get(\Joomla\CMS\User\UserFactoryInterface::class)->loadUserById($fromLoggedID);
$this->userConversation = $otherUserObject->{$this->nameType};
// Load messages in the current private messaging conversation between 2 registered users
$sql = "SELECT cchat.id, cchat.from, cchat.fromuser AS " . $this->dbInstance->quoteName('fromuserid') . "," .
"\n cchat.message, cchat.sent, cchat.read, cchat.type, cchat.status, u.id AS userid, " .
"\n u.{$this->nameType} AS " . $this->dbInstance->quoteName('fromuser') .
"\n FROM #__jchat AS cchat" .
"\n INNER JOIN #__users AS u ON cchat.fromuser = u.id" .
"\n WHERE ((cchat.touser = ". $this->dbInstance->quote($this->myUserObject->id) .
"\n AND cchat.fromuser = " . $this->dbInstance->quote($fromLoggedID) . ")" .
"\n OR (cchat.fromuser = ". $this->dbInstance->quote($this->myUserObject->id) .
"\n AND cchat.touser = " . $this->dbInstance->quote($fromLoggedID) . "))" .
"\n AND cchat.id >= " . (int)$oldestMessageID .
"\n ORDER BY cchat.id ASC";
$this->dbInstance->setQuery($sql);
$conversation = $this->dbInstance->loadAssocList();
// Render the explicit conversation
$this->getData($conversation);
}
/**
* Class contructor
*
* @access public
* @param $config array
* @return Object
*/
public function __construct($config = array(), ?MVCFactoryInterface $factory = null) {
$this->componentConfig = $this->getComponentParams();
// Config per esportazione nomi utenti
$this->nameType = $this->componentConfig->get('usefullname');
// User session table instance
$this->userSessionTable = $config['sessiontable'];
// Try to load my user name by session ID if user logged in
$myUser = Factory::getApplication()->getIdentity();
$this->myUserObject = $myUser;
if(!$this->userString = $myUser->{$this->nameType}) {
$this->userString = JChatHelpersUsers::generateRandomGuestNameSuffix($this->userSessionTable->session_id, $this->componentConfig);
}
parent::__construct( $config, $factory );
$this->session = &$this->sessionName;
}
}