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314 lines
15 KiB
314 lines
15 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* The administration and management interface for the cache setup and configuration.
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*
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* This file is part of Moodle's cache API, affectionately called MUC.
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*
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* @package core
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* @category cache
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* @copyright 2012 Sam Hemelryk
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once('../config.php');
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require_once($CFG->dirroot.'/lib/adminlib.php');
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require_once($CFG->dirroot.'/cache/locallib.php');
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require_once($CFG->dirroot.'/cache/forms.php');
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// The first time the user visits this page we are going to reparse the definitions.
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// Just ensures that everything is up to date.
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// We flag is session so that this only happens once as people are likely to hit
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// this page several times if making changes.
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if (empty($SESSION->cacheadminreparsedefinitions)) {
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cache_helper::update_definitions();
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$SESSION->cacheadminreparsedefinitions = true;
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}
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$action = optional_param('action', null, PARAM_ALPHA);
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admin_externalpage_setup('cacheconfig');
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$context = context_system::instance();
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$stores = cache_administration_helper::get_store_instance_summaries();
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$plugins = cache_administration_helper::get_store_plugin_summaries();
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$definitions = cache_administration_helper::get_definition_summaries();
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$defaultmodestores = cache_administration_helper::get_default_mode_stores();
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$locks = cache_administration_helper::get_lock_summaries();
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$title = new lang_string('cacheadmin', 'cache');
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$mform = null;
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$notifications = array();
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$notifysuccess = true;
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if (!empty($action) && confirm_sesskey()) {
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switch ($action) {
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case 'rescandefinitions' : // Rescan definitions.
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cache_config_writer::update_definitions();
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redirect($PAGE->url);
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break;
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case 'addstore' : // Add the requested store.
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$plugin = required_param('plugin', PARAM_PLUGIN);
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if (!$plugins[$plugin]['canaddinstance']) {
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print_error('ex_unmetstorerequirements', 'cache');
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}
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$mform = cache_administration_helper::get_add_store_form($plugin);
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$title = get_string('addstore', 'cache', $plugins[$plugin]['name']);
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if ($mform->is_cancelled()) {
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redirect($PAGE->url);
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} else if ($data = $mform->get_data()) {
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$config = cache_administration_helper::get_store_configuration_from_data($data);
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$writer = cache_config_writer::instance();
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unset($config['lock']);
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foreach ($writer->get_locks() as $lock => $lockconfig) {
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if ($lock == $data->lock) {
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$config['lock'] = $data->lock;
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}
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}
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$writer->add_store_instance($data->name, $data->plugin, $config);
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redirect($PAGE->url, get_string('addstoresuccess', 'cache', $plugins[$plugin]['name']), 5);
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}
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break;
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case 'editstore' : // Edit the requested store.
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$plugin = required_param('plugin', PARAM_PLUGIN);
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$store = required_param('store', PARAM_TEXT);
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$mform = cache_administration_helper::get_edit_store_form($plugin, $store);
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$title = get_string('addstore', 'cache', $plugins[$plugin]['name']);
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if ($mform->is_cancelled()) {
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redirect($PAGE->url);
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} else if ($data = $mform->get_data()) {
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$config = cache_administration_helper::get_store_configuration_from_data($data);
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$writer = cache_config_writer::instance();
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unset($config['lock']);
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foreach ($writer->get_locks() as $lock => $lockconfig) {
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if ($lock == $data->lock) {
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$config['lock'] = $data->lock;
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}
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}
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$writer->edit_store_instance($data->name, $data->plugin, $config);
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redirect($PAGE->url, get_string('editstoresuccess', 'cache', $plugins[$plugin]['name']), 5);
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}
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break;
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case 'deletestore' : // Delete a given store.
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$store = required_param('store', PARAM_TEXT);
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$confirm = optional_param('confirm', false, PARAM_BOOL);
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if (!array_key_exists($store, $stores)) {
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$notifysuccess = false;
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$notifications[] = array(get_string('invalidstore', 'cache'), false);
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} else if ($stores[$store]['mappings'] > 0) {
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$notifysuccess = false;
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$notifications[] = array(get_string('deletestorehasmappings', 'cache'), false);
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}
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if ($notifysuccess) {
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if (!$confirm) {
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$title = get_string('confirmstoredeletion', 'cache');
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$params = array('store' => $store, 'confirm' => 1, 'action' => $action, 'sesskey' => sesskey());
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$url = new moodle_url($PAGE->url, $params);
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$button = new single_button($url, get_string('deletestore', 'cache'));
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$PAGE->set_title($title);
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$PAGE->set_heading($SITE->fullname);
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echo $OUTPUT->header();
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echo $OUTPUT->heading($title);
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$confirmation = get_string('deletestoreconfirmation', 'cache', $stores[$store]['name']);
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echo $OUTPUT->confirm($confirmation, $button, $PAGE->url);
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echo $OUTPUT->footer();
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exit;
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} else {
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$writer = cache_config_writer::instance();
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$writer->delete_store_instance($store);
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redirect($PAGE->url, get_string('deletestoresuccess', 'cache'), 5);
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}
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}
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break;
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case 'editdefinitionmapping' : // Edit definition mappings.
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$definition = required_param('definition', PARAM_SAFEPATH);
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if (!array_key_exists($definition, $definitions)) {
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throw new cache_exception('Invalid cache definition requested');
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}
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$title = get_string('editdefinitionmappings', 'cache', $definition);
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$mform = new cache_definition_mappings_form($PAGE->url, array('definition' => $definition));
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if ($mform->is_cancelled()) {
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redirect($PAGE->url);
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} else if ($data = $mform->get_data()) {
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$writer = cache_config_writer::instance();
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$mappings = array();
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foreach ($data->mappings as $mapping) {
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if (!empty($mapping)) {
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$mappings[] = $mapping;
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}
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}
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$writer->set_definition_mappings($definition, $mappings);
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redirect($PAGE->url);
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}
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break;
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case 'editdefinitionsharing' :
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$definition = required_param('definition', PARAM_SAFEPATH);
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if (!array_key_exists($definition, $definitions)) {
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throw new cache_exception('Invalid cache definition requested');
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}
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$title = get_string('editdefinitionsharing', 'cache', $definition);
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$sharingoptions = $definitions[$definition]['sharingoptions'];
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$customdata = array('definition' => $definition, 'sharingoptions' => $sharingoptions);
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$mform = new cache_definition_sharing_form($PAGE->url, $customdata);
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$mform->set_data(array(
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'sharing' => $definitions[$definition]['selectedsharingoption'],
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'userinputsharingkey' => $definitions[$definition]['userinputsharingkey']
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));
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if ($mform->is_cancelled()) {
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redirect($PAGE->url);
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} else if ($data = $mform->get_data()) {
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$component = $definitions[$definition]['component'];
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$area = $definitions[$definition]['area'];
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// Purge the stores removing stale data before we alter the sharing option.
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cache_helper::purge_stores_used_by_definition($component, $area);
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$writer = cache_config_writer::instance();
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$sharing = array_sum(array_keys($data->sharing));
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$userinputsharingkey = $data->userinputsharingkey;
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$writer->set_definition_sharing($definition, $sharing, $userinputsharingkey);
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redirect($PAGE->url);
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}
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break;
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case 'editmodemappings': // Edit default mode mappings.
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$mform = new cache_mode_mappings_form(null, $stores);
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$mform->set_data(array(
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'mode_'.cache_store::MODE_APPLICATION => key($defaultmodestores[cache_store::MODE_APPLICATION]),
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'mode_'.cache_store::MODE_SESSION => key($defaultmodestores[cache_store::MODE_SESSION]),
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'mode_'.cache_store::MODE_REQUEST => key($defaultmodestores[cache_store::MODE_REQUEST]),
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));
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if ($mform->is_cancelled()) {
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redirect($PAGE->url);
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} else if ($data = $mform->get_data()) {
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$mappings = array(
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cache_store::MODE_APPLICATION => array($data->{'mode_'.cache_store::MODE_APPLICATION}),
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cache_store::MODE_SESSION => array($data->{'mode_'.cache_store::MODE_SESSION}),
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cache_store::MODE_REQUEST => array($data->{'mode_'.cache_store::MODE_REQUEST}),
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);
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$writer = cache_config_writer::instance();
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$writer->set_mode_mappings($mappings);
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redirect($PAGE->url);
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}
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break;
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case 'purgedefinition': // Purge a specific definition.
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$definition = required_param('definition', PARAM_SAFEPATH);
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list($component, $area) = explode('/', $definition, 2);
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$factory = cache_factory::instance();
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$definition = $factory->create_definition($component, $area);
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if ($definition->has_required_identifiers()) {
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// We will have to purge the stores used by this definition.
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cache_helper::purge_stores_used_by_definition($component, $area);
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} else {
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// Alrighty we can purge just the data belonging to this definition.
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cache_helper::purge_by_definition($component, $area);
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}
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redirect($PAGE->url, get_string('purgedefinitionsuccess', 'cache'), 5);
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break;
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case 'purgestore':
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case 'purge': // Purge a store cache.
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$store = required_param('store', PARAM_TEXT);
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cache_helper::purge_store($store);
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redirect($PAGE->url, get_string('purgestoresuccess', 'cache'), 5);
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break;
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case 'newlockinstance':
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// Adds a new lock instance.
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$lock = required_param('lock', PARAM_ALPHANUMEXT);
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$mform = cache_administration_helper::get_add_lock_form($lock);
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if ($mform->is_cancelled()) {
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redirect($PAGE->url);
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} else if ($data = $mform->get_data()) {
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$factory = cache_factory::instance();
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$config = $factory->create_config_instance(true);
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$name = $data->name;
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$data = cache_administration_helper::get_lock_configuration_from_data($lock, $data);
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$config->add_lock_instance($name, $lock, $data);
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redirect($PAGE->url, get_string('addlocksuccess', 'cache', $name), 5);
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}
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break;
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case 'deletelock':
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// Deletes a lock instance.
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$lock = required_param('lock', PARAM_ALPHANUMEXT);
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$confirm = optional_param('confirm', false, PARAM_BOOL);
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if (!array_key_exists($lock, $locks)) {
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$notifysuccess = false;
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$notifications[] = array(get_string('invalidlock', 'cache'), false);
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} else if ($locks[$lock]['uses'] > 0) {
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$notifysuccess = false;
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$notifications[] = array(get_string('deletelockhasuses', 'cache'), false);
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}
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if ($notifysuccess) {
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if (!$confirm) {
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$title = get_string('confirmlockdeletion', 'cache');
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$params = array('lock' => $lock, 'confirm' => 1, 'action' => $action, 'sesskey' => sesskey());
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$url = new moodle_url($PAGE->url, $params);
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$button = new single_button($url, get_string('deletelock', 'cache'));
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$PAGE->set_title($title);
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$PAGE->set_heading($SITE->fullname);
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echo $OUTPUT->header();
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echo $OUTPUT->heading($title);
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$confirmation = get_string('deletelockconfirmation', 'cache', $lock);
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echo $OUTPUT->confirm($confirmation, $button, $PAGE->url);
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echo $OUTPUT->footer();
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exit;
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} else {
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$writer = cache_config_writer::instance();
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$writer->delete_lock_instance($lock);
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redirect($PAGE->url, get_string('deletelocksuccess', 'cache'), 5);
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}
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}
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break;
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}
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}
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// Add cache store warnings to the list of notifications.
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// Obviously as these are warnings they are show as failures.
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foreach (cache_helper::warnings($stores) as $warning) {
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$notifications[] = array($warning, false);
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}
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$PAGE->set_title($title);
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$PAGE->set_heading($SITE->fullname);
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/* @var core_cache_renderer $renderer */
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$renderer = $PAGE->get_renderer('core_cache');
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echo $renderer->header();
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echo $renderer->heading($title);
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echo $renderer->notifications($notifications);
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if ($mform instanceof moodleform) {
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$mform->display();
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} else {
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echo $renderer->store_plugin_summaries($plugins);
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echo $renderer->store_instance_summariers($stores, $plugins);
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echo $renderer->definition_summaries($definitions, $context);
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echo $renderer->lock_summaries($locks);
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$applicationstore = join(', ', $defaultmodestores[cache_store::MODE_APPLICATION]);
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$sessionstore = join(', ', $defaultmodestores[cache_store::MODE_SESSION]);
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$requeststore = join(', ', $defaultmodestores[cache_store::MODE_REQUEST]);
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$editurl = new moodle_url('/cache/admin.php', array('action' => 'editmodemappings', 'sesskey' => sesskey()));
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echo $renderer->mode_mappings($applicationstore, $sessionstore, $requeststore, $editurl);
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}
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echo $renderer->footer();
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