1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * Message outputs configuration page
19 *
20 * @package    message
21 * @copyright  2011 Lancaster University Network Services Limited
22 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24require_once(__DIR__ . '/../config.php');
25require_once($CFG->dirroot . '/message/lib.php');
26require_once($CFG->libdir.'/adminlib.php');
27
28// This is an admin page.
29admin_externalpage_setup('managemessageoutputs');
30
31// Fetch processors.
32$allprocessors = get_message_processors();
33$processors = array_filter($allprocessors, function($processor) {
34    return $processor->enabled;
35});
36$disabledprocessors = array_filter($allprocessors, function($processor) {
37    return !$processor->enabled;
38});
39
40// Fetch message providers.
41$providers = get_message_providers();
42// Fetch the manage message outputs interface.
43$preferences = get_message_output_default_preferences();
44
45if (($form = data_submitted()) && confirm_sesskey()) {
46    $newpreferences = array();
47    // Prepare default message outputs settings.
48    foreach ($providers as $provider) {
49        $componentproviderbase = $provider->component.'_'.$provider->name;
50        $disableprovidersetting = $componentproviderbase.'_disable';
51        $providerdisabled = false;
52        if (!isset($form->$disableprovidersetting)) {
53            $providerdisabled = true;
54            $newpreferences[$disableprovidersetting] = 1;
55        } else {
56            $newpreferences[$disableprovidersetting] = 0;
57        }
58
59        foreach (array('permitted', 'loggedin', 'loggedoff') as $setting) {
60            $value = null;
61            $componentprovidersetting = $componentproviderbase.'_'.$setting;
62            if ($setting == 'permitted') {
63                // If we deal with permitted select element, we need to create individual
64                // setting for each possible processor. Note that this block will
65                // always be processed first after entring parental foreach iteration
66                // so we can change form values on this stage.
67                foreach ($processors as $processor) {
68                    $value = '';
69                    if (isset($form->{$componentprovidersetting}[$processor->name])) {
70                        $value = $form->{$componentprovidersetting}[$processor->name];
71                    }
72                    // Ensure that loggedin loggedoff options are set correctly for this permission.
73                    if (($value == 'disallowed') || $providerdisabled) {
74                        // It might be better to unset them, but I can't figure out why that cause error.
75                        $form->{$componentproviderbase.'_loggedin'}[$processor->name] = 0;
76                        $form->{$componentproviderbase.'_loggedoff'}[$processor->name] = 0;
77                    } else if ($value == 'forced') {
78                        $form->{$componentproviderbase.'_loggedin'}[$processor->name] = 1;
79                        $form->{$componentproviderbase.'_loggedoff'}[$processor->name] = 1;
80                    }
81                    // Record the site preference.
82                    $newpreferences[$processor->name.'_provider_'.$componentprovidersetting] = $value;
83                }
84            } else {
85                $newsettings = array();
86                if (property_exists($form, $componentprovidersetting)) {
87                    // We must be processing loggedin or loggedoff checkboxes.
88                    // Store defained comma-separated processors as setting value.
89                    // Using array_filter eliminates elements set to 0 above.
90                    $newsettings = array_keys(array_filter($form->{$componentprovidersetting}));
91                }
92
93                // Let's join existing setting values for disabled processors.
94                $property = 'message_provider_'.$componentprovidersetting;
95                if (property_exists($preferences, $property)) {
96                    $existingsetting = $preferences->$property;
97                    foreach ($disabledprocessors as $disable) {
98                        if (strpos($existingsetting, $disable->name) > -1) {
99                            $newsettings[] = $disable->name;
100                        }
101                    }
102                }
103
104                $value = join(',', $newsettings);
105                if (empty($value)) {
106                    $value = null;
107                }
108            }
109            if ($setting != 'permitted') {
110                // We have already recoded site preferences for 'permitted' type.
111                $newpreferences['message_provider_'.$componentprovidersetting] = $value;
112            }
113        }
114    }
115
116    // Update database.
117    $transaction = $DB->start_delegated_transaction();
118
119    // Save processors enabled/disabled status.
120    foreach ($allprocessors as $processor) {
121        $enabled = isset($form->{$processor->name});
122        if ($enabled != $processor->enabled) {
123            add_to_config_log($processor->name, $processor->enabled, $enabled, 'core');
124        }
125        \core_message\api::update_processor_status($processor, $enabled);
126    }
127
128    foreach ($newpreferences as $name => $value) {
129        $old = isset($preferences->$name) ? $preferences->$name : '';
130
131        if ($old != $value) {
132            add_to_config_log($name, $old, $value, 'core');
133        }
134
135        set_config($name, $value, 'message');
136    }
137    $transaction->allow_commit();
138
139    core_plugin_manager::reset_caches();
140
141    $url = new moodle_url('message.php');
142    redirect($url);
143}
144
145// Page settings
146$PAGE->set_context(context_system::instance());
147$PAGE->requires->js_init_call('M.core_message.init_defaultoutputs');
148
149$renderer = $PAGE->get_renderer('core', 'message');
150
151// Display the page.
152echo $OUTPUT->header();
153echo $renderer->manage_messageoutput_settings($allprocessors, $processors, $providers, $preferences);
154echo $OUTPUT->footer();
155