Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// 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 3 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * Prints a particular instance of edusharing

 *

 * @package    mod_edusharing

 * @copyright  metaVentis GmbH — http://metaventis.com

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

use EduSharingApiClient\EduSharingHelperBase;

use mod_edusharing\Constants;

use mod_edusharing\EduSharingService;

use mod_edusharing\UtilityFunctions;

require_once(dirname(__FILE__, 3) . '/config.php');

require_once(dirname(__FILE__) . '/lib.php');

global $CFG, $PAGE, $DB;

try {

    $id = optional_param('id', 0, PARAM_INT); // Course_module ID or.

    $n  = optional_param('n', 0, PARAM_INT);  // Edusharing instance ID - it should be named as the first character of the module.

    if ($id !== 0) {

        $cm         = get_coursemodule_from_id('edusharing', $id, 0, false, MUST_EXIST);

        $course     = $DB->get_record('course', ['id' => $cm->course], '*', MUST_EXIST);

        $edusharing = $DB->get_record(Constants::EDUSHARING_TABLE, ['id' => $cm->instance], '*', MUST_EXIST);

        $vid        = $id;

        $courseid   = $course->id;

    } else if ($n !== 0) {

        $edusharing = $DB->get_record(Constants::EDUSHARING_TABLE, ['id' => $n], '*', MUST_EXIST);

        $course     = $DB->get_record('course', ['id' => $edusharing->course], '*', MUST_EXIST);

        $cm         = get_coursemodule_from_instance('edusharing', $edusharing->id, $course->id, false, MUST_EXIST);

        $vid        = $edusharing->id;

        $courseid   = $course->id;

    } else {

        trigger_error(get_string('error_detect_course', 'edusharing'), E_USER_WARNING);

        exit();

    }

    $PAGE->set_url('/mod/edusharing/view.php?id=' . $vid);

    require_login($course, true, $cm);

    try {

        $edusharingservice = new EduSharingService();

        $ticket            = $edusharingservice->get_ticket();

    } catch (Exception $exception) {

        trigger_error($exception->getMessage(), E_USER_WARNING);

        exit();

    }

    $utils       = new UtilityFunctions();

    $redirecturl = $utils->get_redirect_url($edusharing);

    $ts          = round(microtime(true) * 1000);

    $redirecturl .= '&ts=' . $ts;

    $data        = get_config('edusharing', 'application_appid') . $ts . $utils->get_object_id_from_url($edusharing->object_url);

    $basehelper  = new EduSharingHelperBase(get_config('edusharing', 'application_cc_gui_url'),

        get_config('edusharing', 'application_private_key'),

        get_config('edusharing', 'application_appid'));

    $redirecturl .= '&sig=' . urlencode($basehelper->sign($data));

    $redirecturl .= '&signed=' . urlencode($data);

    $backaction  = '&closeOnBack=true';

    if (empty($edusharing->popup_window)) {

        $backaction = '&backLink=' . urlencode($CFG->wwwroot . '/course/view.php?id=' . $courseid);

    }

    if (!empty($_SERVER['HTTP_REFERER']) && str_contains($_SERVER['HTTP_REFERER'], 'modedit.php')) {

        $backaction = '&backLink=' . urlencode($_SERVER['HTTP_REFERER']);

    }

    $redirecturl .= $backaction;

    $redirecturl .= '&ticket=' . urlencode(base64_encode($utils->encrypt_with_repo_key($ticket)));

    redirect($redirecturl);

} catch (Exception $exception) {

    debugging($exception->getMessage());

}