class.ilPrivacySettings.php

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<?php
/*
    +-----------------------------------------------------------------------------+
    | ILIAS open source                                                           |
    +-----------------------------------------------------------------------------+
    | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
    |                                                                             |
    | This program is free software; you can redistribute it and/or               |
    | modify it under the terms of the GNU General Public License                 |
    | as published by the Free Software Foundation; either version 2              |
    | of the License, or (at your option) any later version.                      |
    |                                                                             |
    | This program is distributed in the hope that it will be useful,             |
    | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
    | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
    | GNU General Public License for more details.                                |
    |                                                                             |
    | You should have received a copy of the GNU General Public License           |
    | along with this program; if not, write to the Free Software                 |
    | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
    +-----------------------------------------------------------------------------+
*/

class ilPrivacySettings
{
    private static $instance = null;
    private $db;
    private $settings;
    
    private $export_course;
    private $export_group;
    private $export_learning_sequence;
    private $export_confirm_course;
    private $export_confirm_group;
    private $export_confirm_learning_sequence;

    private $participants_list_course_enabled = true;

    private $fora_statistics;
    private $anonymous_fora;
    private $rbac_log;
    private $rbac_log_age;
    private $show_grp_access_times;
    private $show_crs_access_times;
    private $show_lso_access_times;
    private $ref_id;
    private $sahs_protocol_data;
    private $export_scorm;

    private function __construct()
    {
        global $DIC;

        $ilSetting = $DIC['ilSetting'];
        $ilDB = $DIC['ilDB'];

        $this->db = $ilDB;
        $this->settings = $ilSetting;

        $this->read();
    }

    public static function _getInstance()
    {
        if (is_object(self::$instance)) {
            return self::$instance;
        }
        return self::$instance = new ilPrivacySettings();
    }

    public function getPrivacySettingsRefId()
    {
        return $this->ref_id;
    }

    public function enabledCourseExport()
    {
        return $this->export_course;
    }
    
    public function enabledGroupExport()
    {
        return $this->export_group;
    }

    public function enabledLearningSequenceExport()
    {
        return $this->export_learning_sequence;
    }

    public function participantsListInCoursesEnabled()
    {
        return $this->participants_list_course_enabled;
    }

    public function enableParticipantsListInCourses($a_status)
    {
        $this->participants_list_course_enabled = $a_status;
    }

    public function checkExportAccess($a_ref_id, $a_user_id = 0)
    {
        global $DIC;

        $ilUser = $DIC['ilUser'];
        $ilAccess = $DIC['ilAccess'];
        $rbacsystem = $DIC['rbacsystem'];
        
        $user_id = $a_user_id ? $a_user_id : $ilUser->getId();
        
        if (ilObject::_lookupType($a_ref_id, true) == 'crs') {
            return $this->enabledCourseExport() and $ilAccess->checkAccessOfUser($user_id, 'manage_members', '', $a_ref_id) and $rbacsystem->checkAccessOfUser($user_id, 'export_member_data', $this->getPrivacySettingsRefId());
        } elseif (ilObject::_lookupType($a_ref_id, true) == 'grp') {
            return $this->enabledGroupExport() and $ilAccess->checkAccessOfUser($user_id, 'manage_members', '', $a_ref_id) and $rbacsystem->checkAccessOfUser($user_id, 'export_member_data', $this->getPrivacySettingsRefId());
        } elseif (ilObject::_lookupType($a_ref_id, true) == 'lso') {
            return $this->enabledLearningSequenceExport() and $ilAccess->checkAccessOfUser($user_id, 'manage_members', '', $a_ref_id) and $rbacsystem->checkAccessOfUser($user_id, 'export_member_data', $this->getPrivacySettingsRefId());
        }
    }

    public function enableCourseExport($a_status)
    {
        $this->export_course = (bool) $a_status;
    }

    public function enableGroupExport($a_status)
    {
        $this->export_group = (bool) $a_status;
    }

    public function enableLearningSequenceExport($a_status)
    {
        $this->export_learning_sequence = (bool) $a_status;
    }

    public function enableForaStatistics($a_status)
    {
        $this->fora_statistics = (bool) $a_status;
    }
    
    public function enabledForaStatistics()
    {
        return $this->fora_statistics;
    }

    public function enableAnonymousFora($a_status)
    {
        $this->anonymous_fora = (bool) $a_status;
    }
    
    public function enabledAnonymousFora()
    {
        return $this->anonymous_fora;
    }

    public function enableRbacLog($a_status)
    {
        $this->rbac_log = (bool) $a_status;
    }

    public function enabledRbacLog()
    {
        return $this->rbac_log;
    }

    public function setRbacLogAge($a_age)
    {
        $this->rbac_log_age = (int) $a_age;
    }

    public function getRbacLogAge()
    {
        return $this->rbac_log_age;
    }
    
    public function confirmationRequired($a_type)
    {
        switch ($a_type) {
            case 'crs':
                return $this->courseConfirmationRequired();
                
            case 'grp':
                return $this->groupConfirmationRequired();

            case 'lso':
                return $this->learningSequenceConfirmationRequired();
        }
        return false;
    }

    public function courseConfirmationRequired()
    {
        return $this->export_confirm_course;
    }

    public function groupConfirmationRequired()
    {
        return $this->export_confirm_group;
    }

    public function learningSequenceConfirmationRequired()
    {
        return $this->export_confirm_learning_sequence;
    }

    public function setCourseConfirmationRequired($a_status)
    {
        $this->export_confirm_course = (bool) $a_status;
    }
    
    public function setGroupConfirmationRequired($a_status)
    {
        $this->export_confirm_group = (bool) $a_status;
    }

    public function setLearningSequenceConfirmationRequired($a_status)
    {
        $this->export_confirm_learning_sequence = (bool) $a_status;
    }

    public function showGroupAccessTimes($a_status)
    {
        $this->show_grp_access_times = $a_status;
    }
    
    public function enabledGroupAccessTimes()
    {
        return (bool) $this->show_grp_access_times;
    }
    
    public function showCourseAccessTimes($a_status)
    {
        $this->show_crs_access_times = $a_status;
    }
    
    public function enabledLearningSequenceAccessTimes()
    {
        return (bool) $this->show_lso_access_times;
    }

    public function showLearningSequenceAccessTimes($a_status)
    {
        $this->show_lso_access_times = $a_status;
    }
    
    public function enabledCourseAccessTimes()
    {
        return (bool) $this->show_crs_access_times;
    }
    
    public function enabledAccessTimesByType($a_obj_type)
    {
        switch ($a_obj_type) {
            case 'crs':
                return $this->enabledCourseAccessTimes();
                
            case 'grp':
                return $this->enabledGroupAccessTimes();
        }
    }

    public function save()
    {
        $this->settings->set('ps_export_confirm', (bool) $this->courseConfirmationRequired());
        $this->settings->set('ps_export_confirm_group', (bool) $this->groupConfirmationRequired());
        $this->settings->set('ps_export_confirm_learning_sequence', (bool) $this->learningSequenceConfirmationRequired());
        $this->settings->set('ps_export_course', (bool) $this->enabledCourseExport());
        $this->settings->set('ps_export_group', (bool) $this->enabledGroupExport());
        $this->settings->set('ps_export_learning_sequence', (bool) $this->enabledLearningSequenceExport());
        $this->settings->set('enable_fora_statistics', (bool) $this->enabledForaStatistics());
        $this->settings->set('enable_anonymous_fora', (bool) $this->enabledAnonymousFora());
        $this->settings->set('ps_access_times', (bool) $this->enabledGroupAccessTimes());
        $this->settings->set('ps_crs_access_times', (bool) $this->enabledCourseAccessTimes());
        $this->settings->set('rbac_log', (bool) $this->enabledRbacLog());
        $this->settings->set('rbac_log_age', (int) $this->getRbacLogAge());
        $this->settings->set('enable_sahs_pd', (int) $this->enabledSahsProtocolData());
        $this->settings->set('ps_export_scorm', (bool) $this->enabledExportSCORM());

        $this->settings->set('participants_list_courses', (bool) $this->participantsListInCoursesEnabled());
    }
    private function read()
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        $query = "SELECT object_reference.ref_id FROM object_reference,tree,object_data " .
                "WHERE tree.parent = " . $ilDB->quote(SYSTEM_FOLDER_ID, 'integer') . " " .
                "AND object_data.type = 'ps' " .
                "AND object_reference.ref_id = tree.child " .
                "AND object_reference.obj_id = object_data.obj_id";
        $res = $this->db->query($query);
        $row = $res->fetchRow(ilDBConstants::FETCHMODE_ASSOC);
        $this->ref_id = $row["ref_id"];

        $this->export_course = (bool) $this->settings->get('ps_export_course', false);
        $this->export_group = (bool) $this->settings->get('ps_export_group', false);
        $this->export_confirm_course = (bool) $this->settings->get('ps_export_confirm', false);
        $this->export_confirm_group = (bool) $this->settings->get('ps_export_confirm_group', false);
        $this->fora_statistics = (bool) $this->settings->get('enable_fora_statistics', false);
        $this->anonymous_fora = (bool) $this->settings->get('enable_anonymous_fora', false);
        $this->show_grp_access_times = (bool) $this->settings->get('ps_access_times', false);
        $this->show_crs_access_times = (bool) $this->settings->get('ps_crs_access_times', false);
        $this->rbac_log = (bool) $this->settings->get('rbac_log', false);
        $this->rbac_log_age = (int) $this->settings->get('rbac_log_age', 6);
        $this->sahs_protocol_data = (int) $this->settings->get('enable_sahs_pd', 0);
        $this->export_scorm = (bool) $this->settings->get('ps_export_scorm', false);
        $this->enableParticipantsListInCourses((bool) $this->settings->get('participants_list_courses', $this->participantsListInCoursesEnabled()));
    }

    public function validate()
    {
        return 0;
    }

    public function enabledSahsProtocolData()
    {
        return (int) $this->sahs_protocol_data;
    }
    public function enableSahsProtocolData($status)
    {
        $this->sahs_protocol_data = (int) $status;
    }

    // show and export protocol data with name
    public function enabledExportSCORM()
    {
        return $this->export_scorm;
    }
    public function enableExportSCORM($a_status)
    {
        $this->export_scorm = (bool) $a_status;
    }
}