Proyectos de Subversion Moodle

<?php

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

//

// Moodle 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.

//

// Moodle 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/>.

/**

 * URL module main user interface

 *

 * @package    mod_url

 * @copyright  2009 Petr Skoda  {@link http://skodak.org}

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

 */

require('../../config.php');

require_once("$CFG->dirroot/mod/url/lib.php");

require_once("$CFG->dirroot/mod/url/locallib.php");

require_once($CFG->libdir . '/completionlib.php');

$id       = optional_param('id', 0, PARAM_INT);        // Course module ID

$u        = optional_param('u', 0, PARAM_INT);         // URL instance id

$redirect = optional_param('redirect', 0, PARAM_BOOL);

$forceview = optional_param('forceview', 0, PARAM_BOOL);

if ($u) {  // Two ways to specify the module

    $url = $DB->get_record('url', array('id'=>$u), '*', MUST_EXIST);

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

} else {

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

    $url = $DB->get_record('url', array('id'=>$cm->instance), '*', MUST_EXIST);

}

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

require_course_login($course, true, $cm);

$context = context_module::instance($cm->id);

require_capability('mod/url:view', $context);

// Completion and trigger events.

url_view($url, $course, $cm, $context);

$PAGE->set_url('/mod/url/view.php', array('id' => $cm->id));

// Make sure URL exists before generating output - some older sites may contain empty urls

// Do not use PARAM_URL here, it is too strict and does not support general URIs!

$exturl = trim($url->externalurl);

if (empty($exturl) or $exturl === 'http://') {

    $PAGE->activityheader->set_description(url_get_intro($url, $cm));

    url_print_header($url, $cm, $course);

    notice(get_string('invalidstoredurl', 'url'), new moodle_url('/course/view.php', array('id'=>$cm->course)));

    die;

}

unset($exturl);

$displaytype = url_get_final_display_type($url);

if ($displaytype == RESOURCELIB_DISPLAY_OPEN) {

    $redirect = true;

}

if ($redirect && !$forceview) {

    // coming from course page or url index page,

    // the redirection is needed for completion tracking and logging

    $fullurl = str_replace('&', '&', url_get_full_url($url, $cm, $course));

    if (!course_get_format($course)->has_view_page()) {

        // If course format does not have a view page, add redirection delay with a link to the edit page.

        // Otherwise teacher is redirected to the external URL without any possibility to edit activity or course settings.

        $editurl = null;

        if (has_capability('moodle/course:manageactivities', $context)) {

            $editurl = new moodle_url('/course/modedit.php', array('update' => $cm->id));

            $edittext = get_string('editthisactivity');

        } else if (has_capability('moodle/course:update', $context->get_course_context())) {

            $editurl = new moodle_url('/course/edit.php', array('id' => $course->id));

            $edittext = get_string('editcoursesettings');

        }

        if ($editurl) {

            redirect($fullurl, html_writer::link($editurl, $edittext)."<br/>".

                    get_string('pageshouldredirect'), 10);

        }

    }

    redirect($fullurl);

}

switch ($displaytype) {

    case RESOURCELIB_DISPLAY_EMBED:

        url_display_embed($url, $cm, $course);

        break;

    case RESOURCELIB_DISPLAY_FRAME:

        url_display_frame($url, $cm, $course);

        break;

    default:

        url_print_workaround($url, $cm, $course);

        break;

}