MDL-40818 calendar: Require login to calendar pages
[moodle.git] / calendar / view.php
1 <?php
3 /////////////////////////////////////////////////////////////////////////////
4 //                                                                         //
5 // NOTICE OF COPYRIGHT                                                     //
6 //                                                                         //
7 // Moodle - Calendar extension                                             //
8 //                                                                         //
9 // Copyright (C) 2003-2004  Greek School Network            www.sch.gr     //
10 //                                                                         //
11 // Designed by:                                                            //
12 //     Avgoustos Tsinakos (tsinakos@teikav.edu.gr)                         //
13 //     Jon Papaioannou (pj@moodle.org)                                     //
14 //                                                                         //
15 // Programming and development:                                            //
16 //     Jon Papaioannou (pj@moodle.org)                                     //
17 //                                                                         //
18 // For bugs, suggestions, etc contact:                                     //
19 //     Jon Papaioannou (pj@moodle.org)                                     //
20 //                                                                         //
21 // The current module was developed at the University of Macedonia         //
22 // (www.uom.gr) under the funding of the Greek School Network (www.sch.gr) //
23 // The aim of this project is to provide additional and improved           //
24 // functionality to the Asynchronous Distance Education service that the   //
25 // Greek School Network deploys.                                           //
26 //                                                                         //
27 // This program is free software; you can redistribute it and/or modify    //
28 // it under the terms of the GNU General Public License as published by    //
29 // the Free Software Foundation; either version 2 of the License, or       //
30 // (at your option) any later version.                                     //
31 //                                                                         //
32 // This program is distributed in the hope that it will be useful,         //
33 // but WITHOUT ANY WARRANTY; without even the implied warranty of          //
34 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           //
35 // GNU General Public License for more details:                            //
36 //                                                                         //
37 //          http://www.gnu.org/copyleft/gpl.html                           //
38 //                                                                         //
39 /////////////////////////////////////////////////////////////////////////////
41 /**
42  * Display the calendar page.
43  * @copyright 2003 Jon Papaioannou
44  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
45  * @package core_calendar
46  */
48 require_once('../config.php');
49 require_once($CFG->dirroot.'/course/lib.php');
50 require_once($CFG->dirroot.'/calendar/lib.php');
52 $courseid = optional_param('course', SITEID, PARAM_INT);
53 $view = optional_param('view', 'upcoming', PARAM_ALPHA);
54 $day = optional_param('cal_d', 0, PARAM_INT);
55 $mon = optional_param('cal_m', 0, PARAM_INT);
56 $year = optional_param('cal_y', 0, PARAM_INT);
57 $time = optional_param('time', 0, PARAM_INT);
59 $url = new moodle_url('/calendar/view.php');
61 // If a day, month and year were passed then convert it to a timestamp. If these were passed
62 // then we can assume the day, month and year are passed as Gregorian, as no where in core
63 // should we be passing these values rather than the time. This is done for BC.
64 if (!empty($day) && !empty($mon) && !empty($year)) {
65     if (checkdate($mon, $day, $year)) {
66         $time = make_timestamp($year, $mon, $day);
67     }
68 }
70 if (empty($time)) {
71     $time = time();
72 }
74 if ($courseid != SITEID) {
75     $url->param('course', $courseid);
76 }
78 if ($view !== 'upcoming') {
79     $time = usergetmidnight($time);
80     $url->param('view', $view);
81 }
83 $url->param('time', $time);
85 $PAGE->set_url($url);
87 if ($courseid != SITEID && !empty($courseid)) {
88     // Course ID must be valid and existing.
89     $course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
90     $courses = array($course->id => $course);
91     $issite = false;
92     navigation_node::override_active_url(new moodle_url('/course/view.php', array('id' => $course->id)));
93 } else {
94     $course = get_site();
95     $courses = calendar_get_default_courses();
96     $issite = true;
97 }
99 require_login($course, false);
101 $calendar = new calendar_information(0, 0, 0, $time);
102 $calendar->prepare_for_view($course, $courses);
104 $pagetitle = '';
106 $strcalendar = get_string('calendar', 'calendar');
108 switch($view) {
109     case 'day':
110         $PAGE->navbar->add(userdate($time, get_string('strftimedate')));
111         $pagetitle = get_string('dayviewtitle', 'calendar', userdate($time, get_string('strftimedaydate')));
112     break;
113     case 'month':
114         $PAGE->navbar->add(userdate($time, get_string('strftimemonthyear')));
115         $pagetitle = get_string('detailedmonthviewtitle', 'calendar', userdate($time, get_string('strftimemonthyear')));
116     break;
117     case 'upcoming':
118         $pagetitle = get_string('upcomingevents', 'calendar');
119     break;
122 // Print title and header
123 $PAGE->set_pagelayout('standard');
124 $PAGE->set_title("$course->shortname: $strcalendar: $pagetitle");
125 $PAGE->set_heading($COURSE->fullname);
127 $renderer = $PAGE->get_renderer('core_calendar');
128 $calendar->add_sidecalendar_blocks($renderer, true, $view);
130 echo $OUTPUT->header();
131 echo $renderer->start_layout();
132 echo html_writer::start_tag('div', array('class'=>'heightcontainer'));
133 echo $OUTPUT->heading(get_string('calendar', 'calendar'));
135 switch($view) {
136     case 'day':
137         echo $renderer->show_day($calendar);
138     break;
139     case 'month':
140         echo $renderer->show_month_detailed($calendar, $url);
141     break;
142     case 'upcoming':
143         $defaultlookahead = CALENDAR_DEFAULT_UPCOMING_LOOKAHEAD;
144         if (isset($CFG->calendar_lookahead)) {
145             $defaultlookahead = intval($CFG->calendar_lookahead);
146         }
147         $lookahead = get_user_preferences('calendar_lookahead', $defaultlookahead);
149         $defaultmaxevents = CALENDAR_DEFAULT_UPCOMING_MAXEVENTS;
150         if (isset($CFG->calendar_maxevents)) {
151             $defaultmaxevents = intval($CFG->calendar_maxevents);
152         }
153         $maxevents = get_user_preferences('calendar_maxevents', $defaultmaxevents);
154         echo $renderer->show_upcoming_events($calendar, $lookahead, $maxevents);
155     break;
158 //Link to calendar export page.
159 echo $OUTPUT->container_start('bottom');
160 if (!empty($CFG->enablecalendarexport)) {
161     echo $OUTPUT->single_button(new moodle_url('export.php', array('course'=>$courseid)), get_string('exportcalendar', 'calendar'));
162     if (calendar_user_can_add_event($course)) {
163         echo $OUTPUT->single_button(new moodle_url('/calendar/managesubscriptions.php', array('course'=>$courseid)), get_string('managesubscriptions', 'calendar'));
164     }
165     if (isloggedin()) {
166         $authtoken = sha1($USER->id . $DB->get_field('user', 'password', array('id' => $USER->id)) . $CFG->calendar_exportsalt);
167         $link = new moodle_url(
168             '/calendar/export_execute.php',
169             array('preset_what'=>'all', 'preset_time' => 'recentupcoming', 'userid' => $USER->id, 'authtoken'=>$authtoken)
170         );
171         echo html_writer::tag('a', 'iCal',
172             array('href' => $link, 'title' => get_string('quickdownloadcalendar', 'calendar'), 'class' => 'ical-link m-l-1'));
173     }
176 echo $OUTPUT->container_end();
177 echo html_writer::end_tag('div');
178 echo $renderer->complete_layout();
179 echo $OUTPUT->footer();