class.ilChatroomHistoryTask.php

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


class ilChatroomHistoryTask extends ilChatroomTaskHandler
{

    private $gui;

    public function __construct(ilChatroomObjectGUI $gui)
    {
        require_once 'Modules/Chatroom/classes/class.ilChatroomFormFactory.php';
        require_once 'Modules/Chatroom/classes/class.ilChatroom.php';
        require_once 'Modules/Chatroom/classes/class.ilChatroomUser.php';

        $this->gui = $gui;
    }

        private function showMessages($messages, $durationForm, $export = false, $psessions = array(), $from, $to)
        {
                //global $tpl, $ilUser, $ilCtrl, $lng;
                global $tpl, $lng, $ilCtrl;

                include_once 'Modules/Chatroom/classes/class.ilChatroom.php';

                if(!ilChatroom::checkUserPermissions('read', $this->gui->ref_id))
                {
                        $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", ROOT_FOLDER_ID);
                        $ilCtrl->redirectByClass("ilrepositorygui", "");
                }

                $this->gui->switchToVisibleMode();

                $tpl->addCSS('Modules/Chatroom/templates/default/style.css');

                // should be able to grep templates 
                if($export)
                {
                        $roomTpl = new ilTemplate('tpl.history_export.html', true, true, 'Modules/Chatroom');
                }
                else
                {
                        $roomTpl = new ilTemplate('tpl.history.html', true, true, 'Modules/Chatroom');
                }

                $scopes = array();

                if($export)
                {
                        ilDatePresentation::setUseRelativeDates(false);
                }

                global $ilUser;
                $time_format = $ilUser->getTimeFormat();

                $prevDate      = '';
                $messagesShown = 0;
                $lastDateTime = null;
                foreach($messages as $message)
                {
                        $message['message']->message = json_decode($message['message']->message);

                        switch($message['message']->type)
                        {
                                case 'message':
                                        if(($_REQUEST['scope'] && $message['message']->sub == $_REQUEST['scope']) || (!$_REQUEST['scope'] && !$message['message']->sub))
                                        {
                                                $date        = new ilDate($message['timestamp'], IL_CAL_UNIX);
                                                $dateTime    = new ilDateTime($message['timestamp'], IL_CAL_UNIX);
                                                $currentDate = ilDatePresentation::formatDate($dateTime);

                                                $roomTpl->setCurrentBlock('MESSAGELINE');
                                                $roomTpl->setVariable('MESSAGECONTENT', $message['message']->message->content); // oops... it is a message? ^^
                                                $roomTpl->setVariable('MESSAGESENDER', $message['message']->user->username);
                                                if(null == $lastDateTime ||
                                                   date('d', $lastDateTime->get(IL_CAL_UNIX)) != date('d', $dateTime->get(IL_CAL_UNIX)) ||
                                                   date('m', $lastDateTime->get(IL_CAL_UNIX)) != date('m', $dateTime->get(IL_CAL_UNIX)) ||
                                                   date('Y', $lastDateTime->get(IL_CAL_UNIX)) != date('Y', $dateTime->get(IL_CAL_UNIX)))
                                                {
                                                        $roomTpl->setVariable('MESSAGEDATE', ilDatePresentation::formatDate($date));
                                                }
                                                
                                                if($prevDate != $currentDate)
                                                {
                                                        switch($time_format)
                                                        {
                                                                case ilCalendarSettings::TIME_FORMAT_24:
                                                                        $date_string = $dateTime->get(IL_CAL_FKT_DATE, 'H:i', $ilUser->getTimeZone());
                                                                        break;
                                                                case ilCalendarSettings::TIME_FORMAT_12:
                                                                        $date_string = $dateTime->get(IL_CAL_FKT_DATE, 'g:ia', $ilUser->getTimeZone());
                                                                        break;
                                                        }

                                                        $roomTpl->setVariable('MESSAGETIME', $date_string);
                                                        $prevDate = $currentDate;
                                                }
                        
                                                $roomTpl->parseCurrentBlock();

                                                $lastDateTime = $dateTime;

                                                ++$messagesShown;
                                        }
                                        break;
                        }
                }

                foreach($psessions as $session)
                {
                        $scopes[$session['proom_id']] = $session['title'];
                }

                if(isset($scopes['']))
                {
                        unset($scopes['']);
                }

                if(!$messagesShown)
                {
                        //$roomTpl->touchBlock('NO_MESSAGES');
                        $roomTpl->setVariable('LBL_NO_MESSAGES', $lng->txt('no_messages'));
                }

                asort($scopes, SORT_STRING);

                $scopes = array($lng->txt('main')) + $scopes;

                if(count($scopes) > 1)
                {
                        $select = new ilSelectInputGUI($lng->txt('scope'), 'scope');
                        $select->setOptions($scopes);

                        if(isset($_REQUEST['scope']))
                        {
                                $select->setValue($_REQUEST['scope']);
                        }

                        $durationForm->addItem($select);
                }

                $room = ilChatroom::byObjectId($this->gui->object->getId());
                //if ($room->getSetting('private_rooms_enabled')) {

                $prevUseRelDates = ilDatePresentation::useRelativeDates();
                ilDatePresentation::setUseRelativeDates(false);

                $unixFrom = $from->getUnixTime();
                $unixTo   = $to->getUnixTime();

                if($unixFrom == $unixTo)
                {
                        $date     = new ilDate($unixFrom, IL_CAL_UNIX);
                        $date_sub = ilDatePresentation::formatDate($date);
                }
                else
                {
                        $date1    = new ilDate($unixFrom, IL_CAL_UNIX);
                        $date2    = new ilDate($unixTo, IL_CAL_UNIX);
                        $date_sub = ilDatePresentation::formatPeriod($date1, $date2);
                }
                ilDatePresentation::setUseRelativeDates($prevUseRelDates);

                $isPrivateRoom = (boolean)((int)$_REQUEST['scope']);
                if($isPrivateRoom)
                {
                        $roomTpl->setVariable('ROOM_TITLE', sprintf($lng->txt('history_title_private_room'), $scopes[(int)$_REQUEST['scope']]) . ' (' . $date_sub . ')');
                }
                else
                {
                        $roomTpl->setVariable('ROOM_TITLE', sprintf($lng->txt('history_title_general'), $this->gui->object->getTitle()) . ' (' . $date_sub . ')');
                }

                //}

                if($export)
                {
                        header("Content-Type: text/html");
                        header("Content-Disposition: attachment; filename=\"" . urlencode($scopes[(int)$_REQUEST['scope']] . '.html') . "\"");
                        echo $roomTpl->get();
                        exit;
                }

                $roomTpl->setVariable('PERIOD_FORM', $durationForm->getHTML());

                $tpl->setVariable('ADM_CONTENT', $roomTpl->get());
        }

    public function byDayExport() {
            $this->byDay(true);
    }

    public function bySessionExport() {
            $this->bySession(true);
    }
    public function byDay($export = false)
    {
            global $lng, $ilCtrl, $ilUser, $tpl;

            $room = ilChatroom::byObjectId( $this->gui->object->getId() );

            $tpl->addJavaScript('./Services/Form/js/date_duration.js');

            $scope = $room->getRoomId();

            $chat_user = new ilChatroomUser( $ilUser, $room );
            $formFactory = new ilChatroomFormFactory();

            $durationForm = $formFactory->getPeriodForm();
            $durationForm->setTitle( $lng->txt('history_byday_title') );
            $durationForm->addCommandButton( 'history-byDayExport', $lng->txt( 'export' ) );
            $durationForm->addCommandButton( 'history-byDay', $lng->txt( 'show' ) );
            $durationForm->setFormAction( $ilCtrl->getFormAction( $this->gui ), 'history-byDay' );

            if( strtolower( $_SERVER['REQUEST_METHOD'] ) == 'post' )
            {
                $durationForm->checkInput();
                $period = $durationForm->getItemByPostVar( 'timeperiod' );
                $messages = $room->getHistory(
                        $from = $period->getStart(),
                        $to = $period->getEnd(),
                        /*$room->getSetting( 'restrict_history' ) ?*/ $chat_user->getUserId() /*: null*/,
                        isset($_REQUEST['scope']) ? $_REQUEST['scope'] : 0
                );
            }
            else
            {
                    $from = new ilDateTime( time() - 60 * 60, IL_CAL_UNIX );
                    $to = new ilDateTime( time(), IL_CAL_UNIX );

                    $period = $durationForm->getItemByPostVar( 'timeperiod' );
                    $period->setStart( $from );
                    $period->setEnd( $to );

                    $messages = $room->getHistory(
                        $from,
                        $to,
                        $chat_user->getUserId(),
                        isset($_REQUEST['scope']) ? $_REQUEST['scope'] : 0
                    );
            }

        $psessions = $room->getPrivateRoomSessions(
                $from,
                $to,
                $chat_user->getUserId(),
                $scope
        );

        $this->showMessages( $messages, $durationForm, $export, $psessions, $from, $to );
    }

    public function bySession($export = false)
    {
        global $lng, $ilCtrl, $ilUser;

        $room = ilChatroom::byObjectId( $this->gui->object->getId() );

        $scope = $room->getRoomId();

        $chat_user = new ilChatroomUser( $ilUser, $room );

        $formFactory = new ilChatroomFormFactory();
        $durationForm = $formFactory->getSessionForm( $room->getSessions( $chat_user ) );
        $durationForm->setTitle( $lng->txt('history_bysession_title') );
        $durationForm->addCommandButton( 'history-bySessionExport', $lng->txt( 'export' ) );
        $durationForm->addCommandButton( 'history-bySession', $lng->txt( 'show' ) );
        $durationForm->setFormAction(
                $ilCtrl->getFormAction( $this->gui ), 'history-bySession'
        );

        if( strtolower( $_SERVER['REQUEST_METHOD'] ) == 'post' )
        {
            $durationForm->checkInput();
            $postVals = explode( ',', $_POST['session'] );
            $durationForm->setValuesByArray( array('session' => $_POST['session']) );

            $messages = $room->getHistory(
                $from = new ilDateTime( $postVals[0], IL_CAL_UNIX ),
                $to = new ilDateTime( $postVals[1], IL_CAL_UNIX ),
                $chat_user->getUserId(),
                isset($_REQUEST['scope']) ? $_REQUEST['scope'] : 0
            );
        }
        else
        {
            $last_session = $room->getLastSession( $chat_user );

            if( $last_session )
            {
                    $from = new ilDateTime( $last_session['connected'], IL_CAL_UNIX );
                    $to = new ilDateTime( $last_session['disconnected'], IL_CAL_UNIX );
            }
            else
            {
                    $from = null;
                    $to = null;
            }

            $messages = $room->getHistory(
                $from,
                $to,
                $chat_user->getUserId(),
                isset($_REQUEST['scope']) ? $_REQUEST['scope'] : 0
            );
        }

        if ($from && $to) {
                $psessions = $room->getPrivateRoomSessions(
                        $from,
                        $to,
                        $chat_user->getUserId(),
                        $scope
                );
        }
        else {
                $from = new ilDateTime();
                $to = new ilDateTime();
                $psessions =  array();
        }
        
        $psessions = $room->getPrivateRoomSessions(
                $from,
                $to,
                $chat_user->getUserId(),
                $scope
        );

        $this->showMessages( $messages, $durationForm, $export, $psessions, $from, $to );
    }

    public function executeDefault($method)
    {
        $this->byDay();
    }

}

?>