class.ilChatroomUploadFileGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilChatroomUploadFileGUI extends ilChatroomGUIHandler
{
    public function __construct()
    {
        throw new Exception('METHOD_NOT_IN_USE', 1456435027);
    }

    public function executeDefault($requestedMethod)
    {
    }

    public function uploadFile()
    {
        $this->redirectIfNoPermission('read');

        $upload_path = $this->getUploadPath();

        $this->checkUploadPath($upload_path);

        $file     = $_FILES['file_to_upload']['tmp_name'];
        $filename = $_FILES['file_to_upload']['name'];
        $type     = $_FILES['file_to_upload']['type'];
        $target   = $upload_path . $filename;

        if (ilUtil::moveUploadedFile($file, $filename, $target)) {
            global $ilUser;

            require_once 'Modules/Chatroom/classes/class.ilChatroom.php';
            require_once 'Modules/Chatroom/classes/class.ilChatroomUser.php';

            $room      = ilChatroom::byObjectId($this->gui->object->getId());
            $chat_user = new ilChatroomUser($ilUser, $room);
            $user_id   = $chat_user->getUserId();

            if (!$room) {
                throw new Exception('unkown room');
            } elseif (!$room->isSubscribed($chat_user->getUserId())) {
                throw new Exception('not subscribed');
            }

            $room->saveFileUploadToDb($user_id, $filename, $type);
            $this->displayLinkToUploadedFile($room, $chat_user);
        }
    }

    public function getUploadPath()
    {
        $path = ilUtil::getDataDir() . "/chatroom/" . $this->gui->object->getId() . "/uploads/";

        return $path;
    }

    public function checkUploadPath($path)
    {
        $err = false;

        switch (true) {
            case !file_exists($path):
                if (!ilUtil::makeDirParents($path)) {
                    $err = true;
                    $msg = 'Error: Upload path could not be created!';
                }
                break;

            case !is_dir($path):
                $err = true;
                $msg = 'Error: Upload path is not a directory!';
                break;

            case !is_readable($path):
                $err = true;
                $msg = 'Error: Upload path is not readable!';
                break;

            default:
        }

        if ($err) {
            throw new Exception($msg);
        }
    }

    protected function displayLinkToUploadedFile($room, $chat_user)
    {
        global $ilCtrl;

        $scope            = $room->getRoomId();
        $params           = array();
        $params['public'] = 1;
        $message = json_encode($this->buildMessage(
            json_encode(array(
                'format'  => array(),
                'content' => ilUtil::stripSlashes(
                    'Eine neue Datei mit dem Link ' .
                    $ilCtrl->getLinkTarget($this->gui, 'uploadFile-deliverFile') .
                    ' wurde hochgeladen'
                )
            )),
            $params,
            $chat_user
        ));

        $params = array_merge($params, array('message' => $message));
        $query  = http_build_query($params);

        $connector      = $this->gui->getConnector();
        $response       = $connector->post($scope, $query);
        $responseObject = json_decode($response);
        /*
         if( $responseObject->success == true && $room->getSetting( 'enable_history' ) )
         {
         $room->addHistoryEntry( $message, $recipient, $publicMessage );
         }
         */
        echo $response;
        exit;
    }

    private function buildMessage($messageString, $params, ilChatroomUser $chat_user)
    {
        $data = new stdClass();

        $data->user       = $this->gui->object->getPersonalInformation($chat_user);
        $data->message    = $messageString;
        $data->timestamp  = date('c');
        $data->type       = 'message';
        $data->public     = (int) $params['public'];
        $data->recipients = $params['recipients']; // ? explode(",", $params['recipients']) : array();

        return $data;
    }

    public function deliverFile()
    {
        // send file

        echo "hello world";
    }
}