2 // This file is part of Moodle - http://moodle.org/
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.
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.
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/>.
18 * Defines classes used for plugins management
20 * This library provides a unified interface to various plugin types in
21 * Moodle. It is mainly used by the plugins management admin page and the
22 * plugins check page during the upgrade.
26 * @copyright 2011 David Mudrak <david@moodle.com>
27 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
30 defined('MOODLE_INTERNAL') || die();
33 * Singleton class providing general plugins management functionality
35 class plugin_manager {
37 /** the plugin is shipped with standard Moodle distribution */
38 const PLUGIN_SOURCE_STANDARD = 'std';
39 /** the plugin is added extension */
40 const PLUGIN_SOURCE_EXTENSION = 'ext';
42 /** the plugin uses neither database nor capabilities, no versions */
43 const PLUGIN_STATUS_NODB = 'nodb';
44 /** the plugin is up-to-date */
45 const PLUGIN_STATUS_UPTODATE = 'uptodate';
46 /** the plugin is about to be installed */
47 const PLUGIN_STATUS_NEW = 'new';
48 /** the plugin is about to be upgraded */
49 const PLUGIN_STATUS_UPGRADE = 'upgrade';
50 /** the version at the disk is lower than the one already installed */
51 const PLUGIN_STATUS_DOWNGRADE = 'downgrade';
52 /** the plugin is installed but missing from disk */
53 const PLUGIN_STATUS_MISSING = 'missing';
55 /** @var plugin_manager holds the singleton instance */
56 protected static $singletoninstance;
57 /** @var array of raw plugins information */
58 protected $pluginsinfo = null;
59 /** @var array of raw subplugins information */
60 protected $subpluginsinfo = null;
63 * Direct initiation not allowed, use the factory method {@link self::instance()}
65 * @todo we might want to specify just a single plugin type to work with
67 protected function __construct() {
68 $this->get_plugins(true);
72 * Sorry, this is singleton
74 protected function __clone() {
78 * Factory method for this class
80 * @return plugin_manager the singleton instance
82 public static function instance() {
85 if (is_null(self::$singletoninstance)) {
86 self::$singletoninstance = new self();
88 return self::$singletoninstance;
92 * Returns a tree of known plugins and information about them
94 * @param bool $disablecache force reload, cache can be used otherwise
97 public function get_plugins($disablecache=false) {
99 if ($disablecache or is_null($this->pluginsinfo)) {
100 $this->pluginsinfo = array();
101 $plugintypes = get_plugin_types();
102 foreach ($plugintypes as $plugintype => $plugintyperootdir) {
103 if (in_array($plugintype, array('base', 'general'))) {
104 throw new coding_exception('Illegal usage of reserved word for plugin type');
106 if (class_exists('plugintype_' . $plugintype)) {
107 $plugintypeclass = 'plugintype_' . $plugintype;
109 $plugintypeclass = 'plugintype_general';
111 if (!in_array('plugintype_interface', class_implements($plugintypeclass))) {
112 throw new coding_exception('Class ' . $plugintypeclass . ' must implement plugintype_interface');
114 $plugins = call_user_func(array($plugintypeclass, 'get_plugins'), $plugintype, $plugintyperootdir, $plugintypeclass);
115 $this->pluginsinfo[$plugintype] = $plugins;
119 return $this->pluginsinfo;
123 * Returns list of plugins that define their subplugins and information about them
125 * At the moment, only activity modules can define subplugins.
127 * @param double $disablecache force reload, cache can be used otherwise
130 public function get_subplugins($disablecache=false) {
132 if ($disablecache or is_null($this->subpluginsinfo)) {
133 $this->subpluginsinfo = array();
134 $mods = get_plugin_list('mod');
135 foreach ($mods as $mod => $moddir) {
136 $modsubplugins = array();
137 if (file_exists($moddir . '/db/subplugins.php')) {
138 include($moddir . '/db/subplugins.php');
139 foreach ($subplugins as $subplugintype => $subplugintyperootdir) {
140 $subplugin = new stdClass();
141 $subplugin->type = $subplugintype;
142 $subplugin->typerootdir = $subplugintyperootdir;
143 $modsubplugins[$subplugintype] = $subplugin;
145 $this->subpluginsinfo['mod_' . $mod] = $modsubplugins;
150 return $this->subpluginsinfo;
154 * Returns the name of the plugin that defines the given subplugin type
156 * If the given subplugin type is not actually a subplugin, returns false.
158 * @param string $subplugintype the name of subplugin type, eg. workshopform or quiz
159 * @return false|string the name of the parent plugin, eg. mod_workshop
161 public function get_parent_of_subplugin($subplugintype) {
164 foreach ($this->get_subplugins() as $pluginname => $subplugintypes) {
165 if (isset($subplugintypes[$subplugintype])) {
166 $parent = $pluginname;
175 * Returns a localized name of a given plugin
177 * @param string $plugin name of the plugin, eg mod_workshop or auth_ldap
180 public function plugin_name($plugin) {
181 list($type, $name) = normalize_component($plugin);
182 return $this->pluginsinfo[$type][$name]->displayname;
186 * Returns a localized name of a plugin type in plural form
188 * Most plugin types define their names in core_plugin lang file. In case of subplugins,
189 * we try to ask the parent plugin for the name. In the worst case, we will return
190 * the value of the passed $type parameter.
192 * @param string $type the type of the plugin, e.g. mod or workshopform
195 public function plugintype_name_plural($type) {
197 if (get_string_manager()->string_exists('type_' . $type . '_plural', 'core_plugin')) {
198 // for most plugin types, their names are defined in core_plugin lang file
199 return get_string('type_' . $type . '_plural', 'core_plugin');
201 } else if ($parent = $this->get_parent_of_subplugin($type)) {
202 // if this is a subplugin, try to ask the parent plugin for the name
203 if (get_string_manager()->string_exists('subplugintype_' . $type . '_plural', $parent)) {
204 return $this->plugin_name($parent) . ' / ' . get_string('subplugintype_' . $type . '_plural', $parent);
206 return $this->plugin_name($parent) . ' / ' . $type;
215 * Defines a white list of all plugins shipped in the standard Moodle distribution
217 * @return false|array array of standard plugins or false if the type is unknown
219 public static function standard_plugins_list($type) {
220 static $standard_plugins = array(
222 'assignment' => array(
223 'offline', 'online', 'upload', 'uploadsingle'
227 'cas', 'db', 'email', 'fc', 'imap', 'ldap', 'manual', 'mnet',
228 'nntp', 'nologin', 'none', 'pam', 'pop3', 'radius',
229 'shibboleth', 'webservice'
233 'activity_modules', 'admin_bookmarks', 'blog_menu',
234 'blog_recent', 'blog_tags', 'calendar_month',
235 'calendar_upcoming', 'comments', 'community',
236 'completionstatus', 'course_list', 'course_overview',
237 'course_summary', 'feedback', 'glossary_random', 'html',
238 'login', 'mentees', 'messages', 'mnet_hosts', 'myprofile',
239 'navigation', 'news_items', 'online_users', 'participants',
240 'private_files', 'quiz_results', 'recent_activity',
241 'rss_client', 'search', 'search_forums', 'section_links',
242 'selfcompletion', 'settings', 'site_main_menu',
243 'social_activities', 'tag_flickr', 'tag_youtube', 'tags'
246 'coursereport' => array(
247 'completion', 'log', 'outline', 'participation', 'progress', 'stats'
250 'datafield' => array(
251 'checkbox', 'date', 'file', 'latlong', 'menu', 'multimenu',
252 'number', 'picture', 'radiobutton', 'text', 'textarea', 'url'
255 'datapreset' => array(
260 'textarea', 'tinymce'
264 'authorize', 'category', 'cohort', 'database', 'flatfile',
265 'guest', 'imsenterprise', 'ldap', 'manual', 'meta', 'mnet',
270 'activitynames', 'algebra', 'censor', 'emailprotect',
271 'emoticon', 'mediaplugin', 'multilang', 'tex', 'tidy',
272 'urltolink', 'mod_data', 'mod_glossary'
276 'scorm', 'social', 'topics', 'weeks'
279 'gradeexport' => array(
280 'ods', 'txt', 'xls', 'xml'
283 'gradeimport' => array(
287 'gradereport' => array(
288 'grader', 'outcomes', 'overview', 'user'
296 'email', 'jabber', 'popup'
299 'mnetservice' => array(
304 'assignment', 'chat', 'choice', 'data', 'feedback', 'folder',
305 'forum', 'glossary', 'imscp', 'label', 'lesson', 'page',
306 'quiz', 'resource', 'scorm', 'survey', 'url', 'wiki', 'workshop'
309 'plagiarism' => array(
312 'portfolio' => array(
313 'boxnet', 'download', 'flickr', 'googledocs', 'mahara', 'picasa'
316 'profilefield' => array(
317 'checkbox', 'datetime', 'menu', 'text', 'textarea'
320 'qbehaviour' => array(
321 'adaptive', 'adaptivenopenalty', 'deferredcbm',
322 'deferredfeedback', 'immediatecbm', 'immediatefeedback',
323 'informationitem', 'interactive', 'interactivecountback',
324 'manualgraded', 'missing'
328 'aiken', 'blackboard', 'blackboard_six', 'examview', 'gift',
329 'learnwise', 'missingword', 'multianswer', 'qti_two', 'webct',
334 'calculated', 'calculatedmulti', 'calculatedsimple',
335 'description', 'essay', 'match', 'missingtype', 'multianswer',
336 'multichoice', 'numerical', 'random', 'randomsamatch',
337 'shortanswer', 'truefalse'
341 'grading', 'overview', 'responses', 'statistics'
345 'backups', 'configlog', 'courseoverview',
346 'customlang', 'log', 'profiling', 'questioninstances',
347 'security', 'spamcleaner', 'stats', 'unittest', 'unsuproles'
350 'repository' => array(
351 'alfresco', 'boxnet', 'coursefiles', 'dropbox', 'filesystem',
352 'flickr', 'flickr_public', 'googledocs', 'local', 'merlot',
353 'picasa', 'recent', 's3', 'upload', 'url', 'user', 'webdav',
354 'wikimedia', 'youtube'
357 'scormreport' => array(
362 'afterburner', 'anomaly', 'arialist', 'base', 'binarius',
363 'boxxie', 'brick', 'canvas', 'formal_white', 'formfactor',
364 'fusion', 'leatherbound', 'magazine', 'nimble', 'nonzero',
365 'overlay', 'serenity', 'sky_high', 'splash', 'standard',
373 'webservice' => array(
374 'amf', 'rest', 'soap', 'xmlrpc'
377 'workshopallocation' => array(
381 'workshopeval' => array(
385 'workshopform' => array(
386 'accumulative', 'comments', 'numerrors', 'rubric'
390 if (isset($standard_plugins[$type])) {
391 return $standard_plugins[$type];
400 * All classes that represent a plugin of some type must implement this interface
402 interface plugintype_interface {
405 * Gathers and returns the information about all plugins of the given type
407 * Passing the parameter $typeclass allows us to reach the same effect as with the
408 * late binding in PHP 5.3. Once PHP 5.3 is required, we can refactor this to use
409 * {@example $plugin = new static();} instead of {@example $plugin = new $typeclass()}
411 * @param string $type the name of the plugintype, eg. mod, auth or workshopform
412 * @param string $typerootdir full path to the location of the plugin dir
413 * @param string $typeclass the name of the actually called class
414 * @return array of plugintype classes, indexed by the plugin name
416 public static function get_plugins($type, $typerootdir, $typeclass);
419 * Sets $displayname property to a localized name of the plugin
423 public function set_display_name();
426 * Sets $versiondisk property to a numerical value representing the
427 * version of the plugin's source code.
429 * If the value is null after calling this method, either the plugin
430 * does not use versioning (typically does not have any database
431 * data) or is missing from disk.
435 public function set_version_disk();
438 * Sets $versiondb property to a numerical value representing the
439 * currently installed version of the plugin.
441 * If the value is null after calling this method, either the plugin
442 * does not use versioning (typically does not have any database
443 * data) or has not been installed yet.
447 public function set_version_db();
450 * Sets $versionrequires property to a numerical value representing
451 * the version of Moodle core that this plugin requires.
455 public function set_version_requires();
458 * Sets $source property to one of plugin_manager::PLUGIN_SOURCE_xxx
461 * If the property's value is null after calling this method, then
462 * the type of the plugin has not been recognized and you should throw
467 public function set_source();
470 * Returns true if the plugin is shipped with the official distribution
471 * of the current Moodle version, false otherwise.
475 public function is_standard();
478 * Returns the status of the plugin
480 * @return string one of plugin_manager::PLUGIN_STATUS_xxx constants
482 public function get_status();
485 * Returns the information about plugin availability
487 * True means that the plugin is enabled. False means that the plugin is
488 * disabled. Null means that the information is not available, or the
489 * plugin does not support configurable availability or the availability
490 * can not be changed.
494 public function is_enabled();
497 * Returns the URL of the plugin settings screen
499 * Null value means that the plugin either does not have the settings screen
500 * or its location is not available via this library.
502 * @return null|moodle_url
504 public function get_settings_url();
507 * Returns the URL of the screen where this plugin can be uninstalled
509 * Visiting that URL must be safe, that is a manual confirmation is needed
510 * for actual uninstallation of the plugin. Null value means that the
511 * plugin either does not support uninstallation, or does not require any
512 * database cleanup or the location of the screen is not available via this
515 * @return null|moodle_url
517 public function get_uninstall_url();
520 * Returns relative directory of the plugin with heading '/'
522 * @example /mod/workshop
525 public function get_dir();
529 * Defines public properties that all plugintype classes must have
530 * and provides default implementation of required methods.
532 abstract class plugintype_base {
534 /** @var string the plugintype name, eg. mod, auth or workshopform */
536 /** @var string full path to the location of all the plugins of this type */
538 /** @var string the plugin name, eg. assignment, ldap */
540 /** @var string the localized plugin name */
542 /** @var string the plugin source, one of plugin_manager::PLUGIN_SOURCE_xxx constants */
544 /** @var fullpath to the location of this plugin */
546 /** @var int|string the version of the plugin's source code */
548 /** @var int|string the version of the installed plugin */
550 /** @var int|float|string required version of Moodle core */
551 public $versionrequires;
552 /** @var int number of instances of the plugin - not supported yet */
554 /** @var int order of the plugin among other plugins of the same type - not supported yet */
558 * @see plugintype_interface::get_plugins()
560 public static function get_plugins($type, $typerootdir, $typeclass) {
562 // get the information about plugins at the disk
563 $plugins = get_plugin_list($type);
565 foreach ($plugins as $pluginname => $pluginrootdir) {
566 $plugin = new $typeclass();
567 $plugin->type = $type;
568 $plugin->typerootdir = $typerootdir;
569 $plugin->name = $pluginname;
570 $plugin->rootdir = $pluginrootdir;
572 $plugin->set_display_name();
573 $plugin->set_version_disk();
574 $plugin->set_version_db();
575 $plugin->set_version_requires();
576 $plugin->set_source();
578 $ondisk[$pluginname] = $plugin;
584 * @see plugintype_interface::set_display_name()
586 public function set_display_name() {
587 if (! get_string_manager()->string_exists('pluginname', $this->type . '_' . $this->name)) {
588 $this->displayname = '[pluginname,' . $this->type . '_' . $this->name . ']';
590 $this->displayname = get_string('pluginname', $this->type . '_' . $this->name);
595 * @see plugintype_interface::set_version_disk()
597 public function set_version_disk() {
599 if (empty($this->rootdir)) {
603 $versionfile = $this->rootdir . '/version.php';
605 if (is_readable($versionfile)) {
606 include($versionfile);
607 if (isset($plugin->version)) {
608 $this->versiondisk = $plugin->version;
614 * @see plugintype_interface::set_version_db()
616 public function set_version_db() {
618 if ($ver = self::get_version_from_config_plugins($this->type . '_' . $this->name)) {
619 $this->versiondb = $ver;
624 * @see plugintype_interface::set_version_requires()
626 public function set_version_requires() {
628 if (empty($this->rootdir)) {
632 $versionfile = $this->rootdir . '/version.php';
634 if (is_readable($versionfile)) {
635 include($versionfile);
636 if (isset($plugin->requires)) {
637 $this->versionrequires = $plugin->requires;
643 * @see plugintype_interface::set_source()
645 public function set_source() {
647 $standard = plugin_manager::standard_plugins_list($this->type);
649 if ($standard !== false) {
650 $standard = array_flip($standard);
651 if (isset($standard[$this->name])) {
652 $this->source = plugin_manager::PLUGIN_SOURCE_STANDARD;
654 $this->source = plugin_manager::PLUGIN_SOURCE_EXTENSION;
660 * @see plugintype_interface::is_standard()
662 public function is_standard() {
663 return $this->source === plugin_manager::PLUGIN_SOURCE_STANDARD;
667 * @see plugintype_interface::get_status()
669 public function get_status() {
671 if (is_null($this->versiondb) and is_null($this->versiondisk)) {
672 return plugin_manager::PLUGIN_STATUS_NODB;
674 } else if (is_null($this->versiondb) and !is_null($this->versiondisk)) {
675 return plugin_manager::PLUGIN_STATUS_NEW;
677 } else if (!is_null($this->versiondb) and is_null($this->versiondisk)) {
678 return plugin_manager::PLUGIN_STATUS_MISSING;
680 } else if ((string)$this->versiondb === (string)$this->versiondisk) {
681 return plugin_manager::PLUGIN_STATUS_UPTODATE;
683 } else if ($this->versiondb < $this->versiondisk) {
684 return plugin_manager::PLUGIN_STATUS_UPGRADE;
686 } else if ($this->versiondb > $this->versiondisk) {
687 return plugin_manager::PLUGIN_STATUS_DOWNGRADE;
690 // $version = pi(); and similar funny jokes - hopefully Donald E. Knuth will never contribute to Moodle ;-)
691 throw new coding_exception('Unable to determine plugin state, check the plugin versions');
696 * @see plugintype_interface::is_enabled()
698 public function is_enabled() {
703 * @see plugintype_interface::get_settings_url()
705 public function get_settings_url() {
710 * @see plugintype_interface::get_uninstall_url()
712 public function get_uninstall_url() {
717 * @see plugintype_interface::get_dir()
719 public function get_dir() {
722 return substr($this->rootdir, strlen($CFG->dirroot));
726 * Provides access to plugin versions from {config_plugins}
728 * @param string $plugin plugin name
729 * @param double $disablecache optional, defaults to false
730 * @return int|false the stored value or false if not found
732 protected function get_version_from_config_plugins($plugin, $disablecache=false) {
734 static $pluginversions = null;
736 if (is_null($pluginversions) or $disablecache) {
737 $pluginversions = $DB->get_records_menu('config_plugins', array('name' => 'version'), 'plugin', 'plugin,value');
740 if (!array_key_exists($plugin, $pluginversions)) {
744 return $pluginversions[$plugin];
749 * General class for all plugin types that do not have their own class
751 class plugintype_general extends plugintype_base implements plugintype_interface {
756 * Class for page side blocks
758 class plugintype_block extends plugintype_base implements plugintype_interface {
761 * @see plugintype_interface::get_plugins()
763 public static function get_plugins($type, $typerootdir, $typeclass) {
765 // get the information about blocks at the disk
766 $blocks = parent::get_plugins($type, $typerootdir, $typeclass);
768 // add blocks missing from disk
769 $blocksinfo = self::get_blocks_info();
770 foreach ($blocksinfo as $blockname => $blockinfo) {
771 if (isset($blocks[$blockname])) {
774 $plugin = new $typeclass();
775 $plugin->type = $type;
776 $plugin->typerootdir = $typerootdir;
777 $plugin->name = $blockname;
778 $plugin->rootdir = null;
779 $plugin->displayname = $blockname;
780 $plugin->versiondb = $blockinfo->version;
781 $plugin->set_source();
783 $blocks[$blockname] = $plugin;
790 * @see plugintype_interface::set_display_name()
792 public function set_display_name() {
794 if (get_string_manager()->string_exists('pluginname', 'block_' . $this->name)) {
795 $this->displayname = get_string('pluginname', 'block_' . $this->name);
797 } else if (($block = block_instance($this->name)) !== false) {
798 $this->displayname = $block->get_title();
801 parent::set_display_name();
806 * @see plugintype_interface::set_version_db()
808 public function set_version_db() {
811 $blocksinfo = self::get_blocks_info();
812 if (isset($blocksinfo[$this->name]->version)) {
813 $this->versiondb = $blocksinfo[$this->name]->version;
818 * @see plugintype_interface::is_enabled()
820 public function is_enabled() {
822 $blocksinfo = self::get_blocks_info();
823 if (isset($blocksinfo[$this->name]->visible)) {
824 if ($blocksinfo[$this->name]->visible) {
830 return parent::is_enabled();
835 * @see plugintype_interface::get_settings_url()
837 public function get_settings_url() {
839 if (($block = block_instance($this->name)) === false) {
840 return parent::get_settings_url();
842 } else if ($block->has_config()) {
843 if (!empty($this->rootdir) and file_exists($this->rootdir . '/settings.php')) {
844 return new moodle_url('/admin/settings.php', array('section' => 'blocksetting' . $this->name));
846 $blocksinfo = self::get_blocks_info();
847 return new moodle_url('/admin/block.php', array('block' => $blocksinfo[$this->name]->id));
851 return parent::get_settings_url();
856 * @see plugintype_interface::get_uninstall_url()
858 public function get_uninstall_url() {
860 $blocksinfo = self::get_blocks_info();
861 return new moodle_url('/admin/blocks.php', array('delete' => $blocksinfo[$this->name]->id, 'sesskey' => sesskey()));
865 * Provides access to the records in {block} table
867 * @param bool $disablecache do not use internal static cache
868 * @return array array of stdClasses
870 protected static function get_blocks_info($disablecache=false) {
872 static $blocksinfocache = null;
874 if (is_null($blocksinfocache) or $disablecache) {
875 $blocksinfocache = $DB->get_records('block', null, 'name', 'name,id,version,visible');
878 return $blocksinfocache;
883 * Class for text filters
885 class plugintype_filter extends plugintype_base implements plugintype_interface {
888 * @see plugintype_interface::get_plugins()
890 public static function get_plugins($type, $typerootdir, $typeclass) {
895 // get the list of filters from both /filter and /mod location
896 $installed = filter_get_all_installed();
898 foreach ($installed as $filterlegacyname => $displayname) {
899 $plugin = new $typeclass();
900 $plugin->type = $type;
901 $plugin->typerootdir = $typerootdir;
902 $plugin->name = self::normalize_legacy_name($filterlegacyname);
903 $plugin->rootdir = $CFG->dirroot . '/' . $filterlegacyname;
904 $plugin->displayname = $displayname;
906 $plugin->set_version_disk();
907 $plugin->set_version_db();
908 $plugin->set_version_requires();
909 $plugin->set_source();
911 $filters[$plugin->name] = $plugin;
914 $globalstates = self::get_global_states();
916 if ($DB->get_manager()->table_exists('filter_active')) {
917 // if we're upgrading from 1.9, the table does not exist yet
918 // if it does, make sure that all installed filters are registered
919 $needsreload = false;
920 foreach (array_keys($installed) as $filterlegacyname) {
921 if (!isset($globalstates[self::normalize_legacy_name($filterlegacyname)])) {
922 filter_set_global_state($filterlegacyname, TEXTFILTER_DISABLED);
927 $globalstates = self::get_global_states(true);
931 // make sure that all registered filters are installed, just in case
932 foreach ($globalstates as $name => $info) {
933 if (!isset($filters[$name])) {
934 // oops, there is a record in filter_active but the filter is not installed
935 $plugin = new $typeclass();
936 $plugin->type = $type;
937 $plugin->typerootdir = $typerootdir;
938 $plugin->name = $name;
939 $plugin->rootdir = $CFG->dirroot . '/' . $info->legacyname;
940 $plugin->displayname = $info->legacyname;
942 $plugin->set_version_db();
944 if (is_null($plugin->versiondb)) {
945 // this is a hack to stimulate 'Missing from disk' error
946 // because $plugin->versiondisk will be null !== false
947 $plugin->versiondb = false;
950 $filters[$plugin->name] = $plugin;
958 * @see plugintype_interface::set_display_name()
960 public function set_display_name() {
961 // do nothing, the name is set in self::get_plugins()
965 * @see plugintype_interface::set_version_disk()
967 public function set_version_disk() {
969 if (strpos($this->name, 'mod_') === 0) {
970 // filters bundled with modules do not use versioning
974 return parent::set_version_disk();
978 * @see plugintype_interface::set_version_requires()
980 public function set_version_requires() {
982 if (strpos($this->name, 'mod_') === 0) {
983 // filters bundled with modules do not use versioning
987 return parent::set_version_requires();
991 * @see plugintype_interface::is_enabled()
993 public function is_enabled() {
995 $globalstates = self::get_global_states();
997 foreach ($globalstates as $filterlegacyname => $info) {
998 $name = self::normalize_legacy_name($filterlegacyname);
999 if ($name === $this->name) {
1000 if ($info->active == TEXTFILTER_DISABLED) {
1003 // it may be 'On' or 'Off, but available'
1013 * @see plugintype_interface::get_settings_url()
1015 public function get_settings_url() {
1017 $globalstates = self::get_global_states();
1018 $legacyname = $globalstates[$this->name]->legacyname;
1019 if (filter_has_global_settings($legacyname)) {
1020 return new moodle_url('/admin/settings.php', array('section' => 'filtersetting' . str_replace('/', '', $legacyname)));
1027 * @see plugintype_interface::get_uninstall_url()
1029 public function get_uninstall_url() {
1031 if (strpos($this->name, 'mod_') === 0) {
1034 $globalstates = self::get_global_states();
1035 $legacyname = $globalstates[$this->name]->legacyname;
1036 return new moodle_url('/admin/filters.php', array('sesskey' => sesskey(), 'filterpath' => $legacyname, 'action' => 'delete'));
1041 * Convert legacy filter names like 'filter/foo' or 'mod/bar' into frankenstyle
1043 * @param string $legacyfiltername legacy filter name
1044 * @return string frankenstyle-like name
1046 protected static function normalize_legacy_name($legacyfiltername) {
1048 $name = str_replace('/', '_', $legacyfiltername);
1049 if (strpos($name, 'filter_') === 0) {
1050 $name = substr($name, 7);
1052 throw new coding_exception('Unable to determine filter name: ' . $legacyfiltername);
1060 * Provides access to the results of {@link filter_get_global_states()}
1061 * but indexed by the normalized filter name
1063 * The legacy filter name is available as ->legacyname property.
1065 * @param bool $disablecache
1068 protected static function get_global_states($disablecache=false) {
1070 static $globalstatescache = null;
1072 if ($disablecache or is_null($globalstatescache)) {
1074 if (!$DB->get_manager()->table_exists('filter_active')) {
1075 // we're upgrading from 1.9 and the table used by {@link filter_get_global_states()}
1076 // does not exist yet
1077 $globalstatescache = array();
1080 foreach (filter_get_global_states() as $legacyname => $info) {
1081 $name = self::normalize_legacy_name($legacyname);
1082 $filterinfo = new stdClass();
1083 $filterinfo->legacyname = $legacyname;
1084 $filterinfo->active = $info->active;
1085 $filterinfo->sortorder = $info->sortorder;
1086 $globalstatescache[$name] = $filterinfo;
1091 return $globalstatescache;
1096 * Class for activity modules
1098 class plugintype_mod extends plugintype_base implements plugintype_interface {
1101 * @see plugintype_interface::get_plugins()
1103 public static function get_plugins($type, $typerootdir, $typeclass) {
1105 // get the information about plugins at the disk
1106 $modules = parent::get_plugins($type, $typerootdir, $typeclass);
1108 // add modules missing from disk
1109 $modulesinfo = self::get_modules_info();
1110 foreach ($modulesinfo as $modulename => $moduleinfo) {
1111 if (isset($modules[$modulename])) {
1114 $plugin = new $typeclass();
1115 $plugin->type = $type;
1116 $plugin->typerootdir = $typerootdir;
1117 $plugin->name = $modulename;
1118 $plugin->rootdir = null;
1119 $plugin->displayname = $modulename;
1120 $plugin->versiondb = $moduleinfo->version;
1121 $plugin->set_source();
1123 $modules[$modulename] = $plugin;
1130 * @see plugintype_interface::set_display_name()
1132 public function set_display_name() {
1133 if (get_string_manager()->string_exists('pluginname', $this->type . '_' . $this->name)) {
1134 $this->displayname = get_string('pluginname', $this->type . '_' . $this->name);
1136 $this->displayname = get_string('modulename', $this->type . '_' . $this->name);
1141 * @see plugintype_interface::set_version_disk()
1143 public function set_version_disk() {
1145 if (empty($this->rootdir)) {
1149 $versionfile = $this->rootdir . '/version.php';
1151 if (is_readable($versionfile)) {
1152 include($versionfile);
1153 if (isset($module->version)) {
1154 $this->versiondisk = $module->version;
1160 * @see plugintype_interface::set_version_db()
1162 public function set_version_db() {
1165 $modulesinfo = self::get_modules_info();
1166 if (isset($modulesinfo[$this->name]->version)) {
1167 $this->versiondb = $modulesinfo[$this->name]->version;
1172 * @see plugintype_interface::set_version_requires()
1174 public function set_version_requires() {
1176 if (empty($this->rootdir)) {
1180 $versionfile = $this->rootdir . '/version.php';
1182 if (is_readable($versionfile)) {
1183 include($versionfile);
1184 if (isset($module->requires)) {
1185 $this->versionrequires = $module->requires;
1191 * @see plugintype_interface::is_enabled()
1193 public function is_enabled() {
1195 $modulesinfo = self::get_modules_info();
1196 if (isset($modulesinfo[$this->name]->visible)) {
1197 if ($modulesinfo[$this->name]->visible) {
1203 return parent::is_enabled();
1208 * @see plugintype_interface::get_settings_url()
1210 public function get_settings_url() {
1212 if (!empty($this->rootdir) and (file_exists($this->rootdir . '/settings.php') or file_exists($this->rootdir . '/settingstree.php'))) {
1213 return new moodle_url('/admin/settings.php', array('section' => 'modsetting' . $this->name));
1215 return parent::get_settings_url();
1220 * @see plugintype_interface::get_uninstall_url()
1222 public function get_uninstall_url() {
1224 if ($this->name !== 'forum') {
1225 return new moodle_url('/admin/modules.php', array('delete' => $this->name, 'sesskey' => sesskey()));
1232 * Provides access to the records in {modules} table
1234 * @param bool $disablecache do not use internal static cache
1235 * @return array array of stdClasses
1237 protected static function get_modules_info($disablecache=false) {
1239 static $modulesinfocache = null;
1241 if (is_null($modulesinfocache) or $disablecache) {
1242 $modulesinfocache = $DB->get_records('modules', null, 'name', 'name,id,version,visible');
1245 return $modulesinfocache;
1250 * Class for question types
1252 class plugintype_qtype extends plugintype_base implements plugintype_interface {
1255 * @see plugintype_interface::set_display_name()
1257 public function set_display_name() {
1258 $this->displayname = get_string($this->name, 'qtype_' . $this->name);
1263 * Class for question formats
1265 class plugintype_qformat extends plugintype_base implements plugintype_interface {
1268 * @see plugintype_interface::set_display_name()
1270 public function set_display_name() {
1271 $this->displayname = get_string($this->name, 'qformat_' . $this->name);
1276 * Class for authentication plugins
1278 class plugintype_auth extends plugintype_base implements plugintype_interface {
1281 * @see plugintype_interface::is_enabled()
1283 public function is_enabled() {
1285 /** @var null|array list of enabled authentication plugins */
1286 static $enabled = null;
1288 if (in_array($this->name, array('nologin', 'manual'))) {
1289 // these two are always enabled and can't be disabled
1293 if (is_null($enabled)) {
1294 $enabled = explode(',', $CFG->auth);
1297 return isset($enabled[$this->name]);
1301 * @see plugintype_interface::get_settings_url()
1303 public function get_settings_url() {
1305 if (!empty($this->rootdir) and file_exists($this->rootdir . '/settings.php')) {
1306 return new moodle_url('/admin/settings.php', array('section' => 'authsetting' . $this->name));
1308 return new moodle_url('/admin/auth_config.php', array('auth' => $this->name));
1314 * Class for enrolment plugins
1316 class plugintype_enrol extends plugintype_base implements plugintype_interface {
1319 * We do not actually need whole enrolment classes here so we do not call
1320 * {@link enrol_get_plugins()}. Note that this may produce slightly different
1321 * results, for example if the enrolment plugin does not contain lib.php
1322 * but it is listed in $CFG->enrol_plugins_enabled
1324 * @see plugintype_interface::is_enabled()
1326 public function is_enabled() {
1328 /** @var null|array list of enabled enrolment plugins */
1329 static $enabled = null;
1331 if (is_null($enabled)) {
1332 $enabled = explode(',', $CFG->enrol_plugins_enabled);
1335 return isset($enabled[$this->name]);
1339 * @see plugintype_interface::get_settings_url()
1341 public function get_settings_url() {
1343 if ($this->is_enabled() or (!empty($this->rootdir) and file_exists($this->rootdir . '/settings.php'))) {
1344 return new moodle_url('/admin/settings.php', array('section' => 'enrolsettings' . $this->name));
1346 return parent::get_settings_url();
1351 * @see plugintype_interface::get_uninstall_url()
1353 public function get_uninstall_url() {
1354 return new moodle_url('/admin/enrol.php', array('action' => 'uninstall', 'enrol' => $this->name, 'sesskey' => sesskey()));
1359 * Class for messaging processors
1361 class plugintype_message extends plugintype_base implements plugintype_interface {
1364 * @see plugintype_interface::get_settings_url()
1366 public function get_settings_url() {
1368 if ($this->name === 'jabber') {
1369 return new moodle_url('/admin/settings.php', array('section' => 'jabber'));
1372 if ($this->name === 'email') {
1373 return new moodle_url('/admin/settings.php', array('section' => 'mail'));
1380 * Class for repositories
1382 class plugintype_repository extends plugintype_base implements plugintype_interface {
1385 * @see plugintype_interface::is_enabled()
1387 public function is_enabled() {
1389 $enabled = self::get_enabled_repositories();
1391 return isset($enabled[$this->name]);
1395 * @see plugintype_interface::get_settings_url()
1397 public function get_settings_url() {
1399 if ($this->is_enabled()) {
1400 return new moodle_url('/admin/repository.php', array('sesskey' => sesskey(), 'action' => 'edit', 'repos' => $this->name));
1402 return parent::get_settings_url();
1407 * Provides access to the records in {repository} table
1409 * @param bool $disablecache do not use internal static cache
1410 * @return array array of stdClasses
1412 protected static function get_enabled_repositories($disablecache=false) {
1414 static $repositories = null;
1416 if (is_null($repositories) or $disablecache) {
1417 $repositories = $DB->get_records('repository', null, 'type', 'type,visible,sortorder');
1420 return $repositories;
1425 * Class for portfolios
1427 class plugintype_portfolio extends plugintype_base implements plugintype_interface {
1430 * @see plugintype_interface::is_enabled()
1432 public function is_enabled() {
1434 $enabled = self::get_enabled_portfolios();
1436 return isset($enabled[$this->name]);
1440 * Provides access to the records in {portfolio_instance} table
1442 * @param bool $disablecache do not use internal static cache
1443 * @return array array of stdClasses
1445 protected static function get_enabled_portfolios($disablecache=false) {
1447 static $portfolios = null;
1449 if (is_null($portfolios) or $disablecache) {
1450 $portfolios = array();
1451 $instances = $DB->get_recordset('portfolio_instance', null, 'plugin');
1452 foreach ($instances as $instance) {
1453 if (isset($portfolios[$instance->plugin])) {
1454 if ($instance->visible) {
1455 $portfolios[$instance->plugin]->visible = $instance->visible;
1458 $portfolios[$instance->plugin] = $instance;
1470 class plugintype_theme extends plugintype_base implements plugintype_interface {
1473 * @see plugintype_interface::is_enabled()
1475 public function is_enabled() {
1478 if ((!empty($CFG->theme) and $CFG->theme === $this->name) or
1479 (!empty($CFG->themelegacy) and $CFG->themelegacy === $this->name)) {
1482 return parent::is_enabled();
1488 * Class representing an MNet service
1490 class plugintype_mnetservice extends plugintype_base implements plugintype_interface {
1493 * @see plugintype_interface::is_enabled()
1495 public function is_enabled() {
1498 if (empty($CFG->mnet_dispatcher_mode) || $CFG->mnet_dispatcher_mode !== 'strict') {
1501 return parent::is_enabled();