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plugin_manager.php
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plugin_manager.php
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<?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/>.
/**
* Defines classes used for plugins management
*
* This library provides a unified interface to various plugin types in
* Moodle. It is mainly used by the plugins management admin page and the
* plugins check page during the upgrade.
*
* @package core
* @copyright 2011 David Mudrak <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class core_plugin_manager {
/** the plugin is shipped with standard Moodle distribution */
const PLUGIN_SOURCE_STANDARD = 'std';
/** the plugin is added extension */
const PLUGIN_SOURCE_EXTENSION = 'ext';
/** the plugin uses neither database nor capabilities, no versions */
const PLUGIN_STATUS_NODB = 'nodb';
/** the plugin is up-to-date */
const PLUGIN_STATUS_UPTODATE = 'uptodate';
/** the plugin is about to be installed */
const PLUGIN_STATUS_NEW = 'new';
/** the plugin is about to be upgraded */
const PLUGIN_STATUS_UPGRADE = 'upgrade';
/** the standard plugin is about to be deleted */
const PLUGIN_STATUS_DELETE = 'delete';
/** the version at the disk is lower than the one already installed */
const PLUGIN_STATUS_DOWNGRADE = 'downgrade';
/** the plugin is installed but missing from disk */
const PLUGIN_STATUS_MISSING = 'missing';
/** the given requirement/dependency is fulfilled */
const REQUIREMENT_STATUS_OK = 'ok';
/** the plugin requires higher core/other plugin version than is currently installed */
const REQUIREMENT_STATUS_OUTDATED = 'outdated';
/** the required dependency is not installed */
const REQUIREMENT_STATUS_MISSING = 'missing';
/** the current Moodle version is too high for plugin. */
const REQUIREMENT_STATUS_NEWER = 'newer';
/** the required dependency is available in the plugins directory */
const REQUIREMENT_AVAILABLE = 'available';
/** the required dependency is available in the plugins directory */
const REQUIREMENT_UNAVAILABLE = 'unavailable';
/** the moodle version is explicitly supported */
const VERSION_SUPPORTED = 'supported';
/** the moodle version is not explicitly supported */
const VERSION_NOT_SUPPORTED = 'notsupported';
/** the plugin does not specify supports */
const VERSION_NO_SUPPORTS = 'nosupports';
/** @var core_plugin_manager holds the singleton instance */
protected static $singletoninstance;
/** @var array of raw plugins information */
protected $pluginsinfo = null;
/** @var array of raw subplugins information */
protected $subpluginsinfo = null;
/** @var array cache information about availability in the plugins directory if requesting "at least" version */
protected $remotepluginsinfoatleast = null;
/** @var array cache information about availability in the plugins directory if requesting exact version */
protected $remotepluginsinfoexact = null;
/** @var array list of installed plugins $name=>$version */
protected $installedplugins = null;
/** @var array list of all enabled plugins $name=>$name */
protected $enabledplugins = null;
/** @var array list of all enabled plugins $name=>$diskversion */
protected $presentplugins = null;
/** @var array reordered list of plugin types */
protected $plugintypes = null;
/** @var \core\update\code_manager code manager to use for plugins code operations */
protected $codemanager = null;
/** @var \core\update\api client instance to use for accessing download.moodle.org/api/ */
protected $updateapiclient = null;
/**
* Direct initiation not allowed, use the factory method {@link self::instance()}
*/
protected function __construct() {
}
/**
* Sorry, this is singleton
*/
protected function __clone() {
}
/**
* Factory method for this class
*
* @return core_plugin_manager the singleton instance
*/
public static function instance() {
if (is_null(static::$singletoninstance)) {
static::$singletoninstance = new static();
}
return static::$singletoninstance;
}
/**
* Reset all caches.
* @param bool $phpunitreset
*/
public static function reset_caches($phpunitreset = false) {
if ($phpunitreset) {
static::$singletoninstance = null;
} else {
if (static::$singletoninstance) {
static::$singletoninstance->pluginsinfo = null;
static::$singletoninstance->subpluginsinfo = null;
static::$singletoninstance->remotepluginsinfoatleast = null;
static::$singletoninstance->remotepluginsinfoexact = null;
static::$singletoninstance->installedplugins = null;
static::$singletoninstance->enabledplugins = null;
static::$singletoninstance->presentplugins = null;
static::$singletoninstance->plugintypes = null;
static::$singletoninstance->codemanager = null;
static::$singletoninstance->updateapiclient = null;
}
}
$cache = cache::make('core', 'plugin_manager');
$cache->purge();
}
/**
* Returns the result of {@link core_component::get_plugin_types()} ordered for humans
*
* @see self::reorder_plugin_types()
* @return array (string)name => (string)location
*/
public function get_plugin_types() {
if (func_num_args() > 0) {
if (!func_get_arg(0)) {
throw new coding_exception('core_plugin_manager->get_plugin_types() does not support relative paths.');
}
}
if ($this->plugintypes) {
return $this->plugintypes;
}
$this->plugintypes = $this->reorder_plugin_types(core_component::get_plugin_types());
return $this->plugintypes;
}
/**
* Load list of installed plugins,
* always call before using $this->installedplugins.
*
* This method is caching results for all plugins.
*/
protected function load_installed_plugins() {
global $DB, $CFG;
if ($this->installedplugins) {
return;
}
if (empty($CFG->version)) {
// Nothing installed yet.
$this->installedplugins = array();
return;
}
$cache = cache::make('core', 'plugin_manager');
$installed = $cache->get('installed');
if (is_array($installed)) {
$this->installedplugins = $installed;
return;
}
$this->installedplugins = array();
$versions = $DB->get_records('config_plugins', array('name'=>'version'));
foreach ($versions as $version) {
$parts = explode('_', $version->plugin, 2);
if (!isset($parts[1])) {
// Invalid component, there must be at least one "_".
continue;
}
// Do not verify here if plugin type and name are valid.
$this->installedplugins[$parts[0]][$parts[1]] = $version->value;
}
foreach ($this->installedplugins as $key => $value) {
ksort($this->installedplugins[$key]);
}
$cache->set('installed', $this->installedplugins);
}
/**
* Return list of installed plugins of given type.
* @param string $type
* @return array $name=>$version
*/
public function get_installed_plugins($type) {
$this->load_installed_plugins();
if (isset($this->installedplugins[$type])) {
return $this->installedplugins[$type];
}
return array();
}
/**
* Load list of all enabled plugins,
* call before using $this->enabledplugins.
*
* This method is caching results from individual plugin info classes.
*/
protected function load_enabled_plugins() {
global $CFG;
if ($this->enabledplugins) {
return;
}
if (empty($CFG->version)) {
$this->enabledplugins = array();
return;
}
$cache = cache::make('core', 'plugin_manager');
$enabled = $cache->get('enabled');
if (is_array($enabled)) {
$this->enabledplugins = $enabled;
return;
}
$this->enabledplugins = array();
require_once($CFG->libdir.'/adminlib.php');
$plugintypes = core_component::get_plugin_types();
foreach ($plugintypes as $plugintype => $fulldir) {
$plugininfoclass = static::resolve_plugininfo_class($plugintype);
if (class_exists($plugininfoclass)) {
$enabled = $plugininfoclass::get_enabled_plugins();
if (!is_array($enabled)) {
continue;
}
$this->enabledplugins[$plugintype] = $enabled;
}
}
$cache->set('enabled', $this->enabledplugins);
}
/**
* Get list of enabled plugins of given type,
* the result may contain missing plugins.
*
* @param string $type
* @return array|null list of enabled plugins of this type, null if unknown
*/
public function get_enabled_plugins($type) {
$this->load_enabled_plugins();
if (isset($this->enabledplugins[$type])) {
return $this->enabledplugins[$type];
}
return null;
}
/**
* Load list of all present plugins - call before using $this->presentplugins.
*/
protected function load_present_plugins() {
if ($this->presentplugins) {
return;
}
$cache = cache::make('core', 'plugin_manager');
$present = $cache->get('present');
if (is_array($present)) {
$this->presentplugins = $present;
return;
}
$this->presentplugins = array();
$plugintypes = core_component::get_plugin_types();
foreach ($plugintypes as $type => $typedir) {
$plugs = core_component::get_plugin_list($type);
foreach ($plugs as $plug => $fullplug) {
$module = new stdClass();
$plugin = new stdClass();
$plugin->version = null;
include($fullplug.'/version.php');
// Check if the legacy $module syntax is still used.
if (!is_object($module) or (count((array)$module) > 0)) {
debugging('Unsupported $module syntax detected in version.php of the '.$type.'_'.$plug.' plugin.');
$skipcache = true;
}
// Check if the component is properly declared.
if (empty($plugin->component) or ($plugin->component !== $type.'_'.$plug)) {
debugging('Plugin '.$type.'_'.$plug.' does not declare valid $plugin->component in its version.php.');
$skipcache = true;
}
$this->presentplugins[$type][$plug] = $plugin;
}
}
if (empty($skipcache)) {
$cache->set('present', $this->presentplugins);
}
}
/**
* Get list of present plugins of given type.
*
* @param string $type
* @return array|null list of presnet plugins $name=>$diskversion, null if unknown
*/
public function get_present_plugins($type) {
$this->load_present_plugins();
if (isset($this->presentplugins[$type])) {
return $this->presentplugins[$type];
}
return null;
}
/**
* Returns a tree of known plugins and information about them
*
* @return array 2D array. The first keys are plugin type names (e.g. qtype);
* the second keys are the plugin local name (e.g. multichoice); and
* the values are the corresponding objects extending {@link \core\plugininfo\base}
*/
public function get_plugins() {
$this->init_pluginsinfo_property();
// Make sure all types are initialised.
foreach ($this->pluginsinfo as $plugintype => $list) {
if ($list === null) {
$this->get_plugins_of_type($plugintype);
}
}
return $this->pluginsinfo;
}
/**
* Returns list of known plugins of the given type.
*
* This method returns the subset of the tree returned by {@link self::get_plugins()}.
* If the given type is not known, empty array is returned.
*
* @param string $type plugin type, e.g. 'mod' or 'workshopallocation'
* @return \core\plugininfo\base[] (string)plugin name (e.g. 'workshop') => corresponding subclass of {@link \core\plugininfo\base}
*/
public function get_plugins_of_type($type) {
global $CFG;
$this->init_pluginsinfo_property();
if (!array_key_exists($type, $this->pluginsinfo)) {
return array();
}
if (is_array($this->pluginsinfo[$type])) {
return $this->pluginsinfo[$type];
}
$types = core_component::get_plugin_types();
if (!isset($types[$type])) {
// Orphaned subplugins!
$plugintypeclass = static::resolve_plugininfo_class($type);
$this->pluginsinfo[$type] = $plugintypeclass::get_plugins($type, null, $plugintypeclass, $this);
return $this->pluginsinfo[$type];
}
/** @var \core\plugininfo\base $plugintypeclass */
$plugintypeclass = static::resolve_plugininfo_class($type);
$plugins = $plugintypeclass::get_plugins($type, $types[$type], $plugintypeclass, $this);
$this->pluginsinfo[$type] = $plugins;
return $this->pluginsinfo[$type];
}
/**
* Init placeholder array for plugin infos.
*/
protected function init_pluginsinfo_property() {
if (is_array($this->pluginsinfo)) {
return;
}
$this->pluginsinfo = array();
$plugintypes = $this->get_plugin_types();
foreach ($plugintypes as $plugintype => $plugintyperootdir) {
$this->pluginsinfo[$plugintype] = null;
}
// Add orphaned subplugin types.
$this->load_installed_plugins();
foreach ($this->installedplugins as $plugintype => $unused) {
if (!isset($plugintypes[$plugintype])) {
$this->pluginsinfo[$plugintype] = null;
}
}
}
/**
* Find the plugin info class for given type.
*
* @param string $type
* @return string name of pluginfo class for give plugin type
*/
public static function resolve_plugininfo_class($type) {
$plugintypes = core_component::get_plugin_types();
if (!isset($plugintypes[$type])) {
return '\core\plugininfo\orphaned';
}
$parent = core_component::get_subtype_parent($type);
if ($parent) {
$class = '\\'.$parent.'\plugininfo\\' . $type;
if (class_exists($class)) {
$plugintypeclass = $class;
} else {
if ($dir = core_component::get_component_directory($parent)) {
// BC only - use namespace instead!
if (file_exists("$dir/adminlib.php")) {
global $CFG;
include_once("$dir/adminlib.php");
}
if (class_exists('plugininfo_' . $type)) {
$plugintypeclass = 'plugininfo_' . $type;
debugging('Class "'.$plugintypeclass.'" is deprecated, migrate to "'.$class.'"', DEBUG_DEVELOPER);
} else {
debugging('Subplugin type "'.$type.'" should define class "'.$class.'"', DEBUG_DEVELOPER);
$plugintypeclass = '\core\plugininfo\general';
}
} else {
$plugintypeclass = '\core\plugininfo\general';
}
}
} else {
$class = '\core\plugininfo\\' . $type;
if (class_exists($class)) {
$plugintypeclass = $class;
} else {
debugging('All standard types including "'.$type.'" should have plugininfo class!', DEBUG_DEVELOPER);
$plugintypeclass = '\core\plugininfo\general';
}
}
if (!in_array('core\plugininfo\base', class_parents($plugintypeclass))) {
throw new coding_exception('Class ' . $plugintypeclass . ' must extend \core\plugininfo\base');
}
return $plugintypeclass;
}
/**
* Returns list of all known subplugins of the given plugin.
*
* For plugins that do not provide subplugins (i.e. there is no support for it),
* empty array is returned.
*
* @param string $component full component name, e.g. 'mod_workshop'
* @return array (string) component name (e.g. 'workshopallocation_random') => subclass of {@link \core\plugininfo\base}
*/
public function get_subplugins_of_plugin($component) {
$pluginfo = $this->get_plugin_info($component);
if (is_null($pluginfo)) {
return array();
}
$subplugins = $this->get_subplugins();
if (!isset($subplugins[$pluginfo->component])) {
return array();
}
$list = array();
foreach ($subplugins[$pluginfo->component] as $subdata) {
foreach ($this->get_plugins_of_type($subdata->type) as $subpluginfo) {
$list[$subpluginfo->component] = $subpluginfo;
}
}
return $list;
}
/**
* Returns list of plugins that define their subplugins and the information
* about them from the db/subplugins.json file.
*
* @return array with keys like 'mod_quiz', and values the data from the
* corresponding db/subplugins.json file.
*/
public function get_subplugins() {
if (is_array($this->subpluginsinfo)) {
return $this->subpluginsinfo;
}
$plugintypes = core_component::get_plugin_types();
$this->subpluginsinfo = array();
foreach (core_component::get_plugin_types_with_subplugins() as $type => $ignored) {
foreach (core_component::get_plugin_list($type) as $plugin => $componentdir) {
$component = $type.'_'.$plugin;
$subplugins = core_component::get_subplugins($component);
if (!$subplugins) {
continue;
}
$this->subpluginsinfo[$component] = array();
foreach ($subplugins as $subplugintype => $ignored) {
$subplugin = new stdClass();
$subplugin->type = $subplugintype;
$subplugin->typerootdir = $plugintypes[$subplugintype];
$this->subpluginsinfo[$component][$subplugintype] = $subplugin;
}
}
}
return $this->subpluginsinfo;
}
/**
* Returns the name of the plugin that defines the given subplugin type
*
* If the given subplugin type is not actually a subplugin, returns false.
*
* @param string $subplugintype the name of subplugin type, eg. workshopform or quiz
* @return false|string the name of the parent plugin, eg. mod_workshop
*/
public function get_parent_of_subplugin($subplugintype) {
$parent = core_component::get_subtype_parent($subplugintype);
if (!$parent) {
return false;
}
return $parent;
}
/**
* Returns a localized name of a given plugin
*
* @param string $component name of the plugin, eg mod_workshop or auth_ldap
* @return string
*/
public function plugin_name($component) {
$pluginfo = $this->get_plugin_info($component);
if (is_null($pluginfo)) {
throw new moodle_exception('err_unknown_plugin', 'core_plugin', '', array('plugin' => $component));
}
return $pluginfo->displayname;
}
/**
* Returns a localized name of a plugin typed in singular form
*
* Most plugin types define their names in core_plugin lang file. In case of subplugins,
* we try to ask the parent plugin for the name. In the worst case, we will return
* the value of the passed $type parameter.
*
* @param string $type the type of the plugin, e.g. mod or workshopform
* @return string
*/
public function plugintype_name($type) {
if (get_string_manager()->string_exists('type_' . $type, 'core_plugin')) {
// For most plugin types, their names are defined in core_plugin lang file.
return get_string('type_' . $type, 'core_plugin');
} else if ($parent = $this->get_parent_of_subplugin($type)) {
// If this is a subplugin, try to ask the parent plugin for the name.
if (get_string_manager()->string_exists('subplugintype_' . $type, $parent)) {
return $this->plugin_name($parent) . ' / ' . get_string('subplugintype_' . $type, $parent);
} else {
return $this->plugin_name($parent) . ' / ' . $type;
}
} else {
return $type;
}
}
/**
* Returns a localized name of a plugin type in plural form
*
* Most plugin types define their names in core_plugin lang file. In case of subplugins,
* we try to ask the parent plugin for the name. In the worst case, we will return
* the value of the passed $type parameter.
*
* @param string $type the type of the plugin, e.g. mod or workshopform
* @return string
*/
public function plugintype_name_plural($type) {
if (get_string_manager()->string_exists('type_' . $type . '_plural', 'core_plugin')) {
// For most plugin types, their names are defined in core_plugin lang file.
return get_string('type_' . $type . '_plural', 'core_plugin');
} else if ($parent = $this->get_parent_of_subplugin($type)) {
// If this is a subplugin, try to ask the parent plugin for the name.
if (get_string_manager()->string_exists('subplugintype_' . $type . '_plural', $parent)) {
return $this->plugin_name($parent) . ' / ' . get_string('subplugintype_' . $type . '_plural', $parent);
} else {
return $this->plugin_name($parent) . ' / ' . $type;
}
} else {
return $type;
}
}
/**
* Returns information about the known plugin, or null
*
* @param string $component frankenstyle component name.
* @return \core\plugininfo\base|null the corresponding plugin information.
*/
public function get_plugin_info($component) {
list($type, $name) = core_component::normalize_component($component);
$plugins = $this->get_plugins_of_type($type);
if (isset($plugins[$name])) {
return $plugins[$name];
} else {
return null;
}
}
/**
* Check to see if the current version of the plugin seems to be a checkout of an external repository.
*
* @param string $component frankenstyle component name
* @return false|string
*/
public function plugin_external_source($component) {
$plugininfo = $this->get_plugin_info($component);
if (is_null($plugininfo)) {
return false;
}
$pluginroot = $plugininfo->rootdir;
if (is_dir($pluginroot.'/.git')) {
return 'git';
}
if (is_file($pluginroot.'/.git')) {
return 'git-submodule';
}
if (is_dir($pluginroot.'/CVS')) {
return 'cvs';
}
if (is_dir($pluginroot.'/.svn')) {
return 'svn';
}
if (is_dir($pluginroot.'/.hg')) {
return 'mercurial';
}
return false;
}
/**
* Get a list of any other plugins that require this one.
* @param string $component frankenstyle component name.
* @return array of frankensyle component names that require this one.
*/
public function other_plugins_that_require($component) {
$others = array();
foreach ($this->get_plugins() as $type => $plugins) {
foreach ($plugins as $plugin) {
$required = $plugin->get_other_required_plugins();
if (isset($required[$component])) {
$others[] = $plugin->component;
}
}
}
return $others;
}
/**
* Check a dependencies list against the list of installed plugins.
* @param array $dependencies compenent name to required version or ANY_VERSION.
* @return bool true if all the dependencies are satisfied.
*/
public function are_dependencies_satisfied($dependencies) {
foreach ($dependencies as $component => $requiredversion) {
$otherplugin = $this->get_plugin_info($component);
if (is_null($otherplugin)) {
return false;
}
if ($requiredversion != ANY_VERSION and $otherplugin->versiondisk < $requiredversion) {
return false;
}
}
return true;
}
/**
* Checks all dependencies for all installed plugins
*
* This is used by install and upgrade. The array passed by reference as the second
* argument is populated with the list of plugins that have failed dependencies (note that
* a single plugin can appear multiple times in the $failedplugins).
*
* @param int $moodleversion the version from version.php.
* @param array $failedplugins to return the list of plugins with non-satisfied dependencies
* @param int $branch the current moodle branch, null if not provided
* @return bool true if all the dependencies are satisfied for all plugins.
*/
public function all_plugins_ok($moodleversion, &$failedplugins = array(), $branch = null) {
global $CFG;
if (empty($branch)) {
$branch = $CFG->branch ?? '';
if (empty($branch)) {
// During initial install there is no branch set.
require($CFG->dirroot . '/version.php');
$branch = (int)$branch;
// Force CFG->branch to int value during install.
$CFG->branch = $branch;
}
}
$return = true;
foreach ($this->get_plugins() as $type => $plugins) {
foreach ($plugins as $plugin) {
if (!$plugin->is_core_dependency_satisfied($moodleversion)) {
$return = false;
$failedplugins[] = $plugin->component;
}
if (!$this->are_dependencies_satisfied($plugin->get_other_required_plugins())) {
$return = false;
$failedplugins[] = $plugin->component;
}
if (!$plugin->is_core_compatible_satisfied($branch)) {
$return = false;
$failedplugins[] = $plugin->component;
}
}
}
return $return;
}
/**
* Resolve requirements and dependencies of a plugin.
*
* Returns an array of objects describing the requirement/dependency,
* indexed by the frankenstyle name of the component. The returned array
* can be empty. The objects in the array have following properties:
*
* ->(numeric)hasver
* ->(numeric)reqver
* ->(string)status
* ->(string)availability
*
* @param \core\plugininfo\base $plugin the plugin we are checking
* @param null|string|int|double $moodleversion explicit moodle core version to check against, defaults to $CFG->version
* @param null|string|int $moodlebranch explicit moodle core branch to check against, defaults to $CFG->branch
* @return array of objects
*/
public function resolve_requirements(\core\plugininfo\base $plugin, $moodleversion=null, $moodlebranch=null) {
global $CFG;
if ($plugin->versiondisk === null) {
// Missing from disk, we have no version.php to read from.
return array();
}
if ($moodleversion === null) {
$moodleversion = $CFG->version;
}
if ($moodlebranch === null) {
$moodlebranch = $CFG->branch;
}
$reqs = array();
$reqcore = $this->resolve_core_requirements($plugin, $moodleversion, $moodlebranch);
if (!empty($reqcore)) {
$reqs['core'] = $reqcore;
}
foreach ($plugin->get_other_required_plugins() as $reqplug => $reqver) {
$reqs[$reqplug] = $this->resolve_dependency_requirements($plugin, $reqplug, $reqver, $moodlebranch);
}
return $reqs;
}
/**
* Helper method to resolve plugin's requirements on the moodle core.
*
* @param \core\plugininfo\base $plugin the plugin we are checking
* @param string|int|double $moodleversion moodle core branch to check against
* @return stdObject
*/
protected function resolve_core_requirements(\core\plugininfo\base $plugin, $moodleversion, $moodlebranch) {
$reqs = (object)array(
'hasver' => null,
'reqver' => null,
'status' => null,
'availability' => null,
);
$reqs->hasver = $moodleversion;
if (empty($plugin->versionrequires)) {
$reqs->reqver = ANY_VERSION;
} else {
$reqs->reqver = $plugin->versionrequires;
}
if ($plugin->is_core_dependency_satisfied($moodleversion)) {
$reqs->status = self::REQUIREMENT_STATUS_OK;
} else {
$reqs->status = self::REQUIREMENT_STATUS_OUTDATED;
}
// Now check if there is an explicit incompatible, supersedes requires.
if (isset($plugin->pluginincompatible) && $plugin->pluginincompatible != null) {
if (!$plugin->is_core_compatible_satisfied($moodlebranch)) {
$reqs->status = self::REQUIREMENT_STATUS_NEWER;
}
}
return $reqs;
}
/**
* Helper method to resolve plugin's dependecies on other plugins.
*
* @param \core\plugininfo\base $plugin the plugin we are checking
* @param string $otherpluginname
* @param string|int $requiredversion
* @param string|int $moodlebranch explicit moodle core branch to check against, defaults to $CFG->branch
* @return stdClass
*/
protected function resolve_dependency_requirements(\core\plugininfo\base $plugin, $otherpluginname,
$requiredversion, $moodlebranch) {
$reqs = (object)array(
'hasver' => null,
'reqver' => null,
'status' => null,
'availability' => null,
);
$otherplugin = $this->get_plugin_info($otherpluginname);
if ($otherplugin !== null) {
// The required plugin is installed.
$reqs->hasver = $otherplugin->versiondisk;
$reqs->reqver = $requiredversion;
// Check it has sufficient version.
if ($requiredversion == ANY_VERSION or $otherplugin->versiondisk >= $requiredversion) {
$reqs->status = self::REQUIREMENT_STATUS_OK;
} else {
$reqs->status = self::REQUIREMENT_STATUS_OUTDATED;
}
} else {
// The required plugin is not installed.
$reqs->hasver = null;
$reqs->reqver = $requiredversion;
$reqs->status = self::REQUIREMENT_STATUS_MISSING;
}
if ($reqs->status !== self::REQUIREMENT_STATUS_OK) {
if ($this->is_remote_plugin_available($otherpluginname, $requiredversion, false)) {
$reqs->availability = self::REQUIREMENT_AVAILABLE;
} else {
$reqs->availability = self::REQUIREMENT_UNAVAILABLE;
}
}
return $reqs;
}
/**
* Helper method to determine whether a moodle version is explicitly supported.
*
* @param \core\plugininfo\base $plugin the plugin we are checking
* @param int $branch the moodle branch to check support for
* @return string
*/
public function check_explicitly_supported($plugin, $branch) : string {
// Check for correctly formed supported.
if (isset($plugin->pluginsupported)) {
// Broken apart for readability.
$error = false;
if (!is_array($plugin->pluginsupported)) {
$error = true;
}
if (!is_int($plugin->pluginsupported[0]) || !is_int($plugin->pluginsupported[1])) {
$error = true;
}
if (count($plugin->pluginsupported) != 2) {
$error = true;
}
if ($error) {
throw new coding_exception(get_string('err_supported_syntax', 'core_plugin'));
}
}
if (isset($plugin->pluginsupported) && $plugin->pluginsupported != null) {
if ($plugin->pluginsupported[0] <= $branch && $branch <= $plugin->pluginsupported[1]) {
return self::VERSION_SUPPORTED;
} else {
return self::VERSION_NOT_SUPPORTED;
}
} else {
// If supports aren't specified, but incompatible is, return not supported if not incompatible.
if (!isset($plugin->pluginsupported) && isset($plugin->pluginincompatible) && !empty($plugin->pluginincompatible)) {
if (!$plugin->is_core_compatible_satisfied($branch)) {
return self::VERSION_NOT_SUPPORTED;
}
}
return self::VERSION_NO_SUPPORTS;
}
}
/**
* Is the given plugin version available in the plugins directory?
*
* See {@link self::get_remote_plugin_info()} for the full explanation of how the $version
* parameter is interpretted.
*
* @param string $component plugin frankenstyle name
* @param string|int $version ANY_VERSION or the version number
* @param bool $exactmatch false if "given version or higher" is requested
* @return boolean
*/
public function is_remote_plugin_available($component, $version, $exactmatch) {
$info = $this->get_remote_plugin_info($component, $version, $exactmatch);
if (empty($info)) {
// There is no available plugin of that name.
return false;
}
if (empty($info->version)) {
// Plugin is known, but no suitable version was found.
return false;
}
return true;
}
/**
* Can the given plugin version be installed via the admin UI?
*
* This check should be used whenever attempting to install a plugin from
* the plugins directory (new install, available update, missing dependency).
*
* @param string $component
* @param int $version version number
* @param string $reason returned code of the reason why it is not
* @param bool $checkremote check this version availability on moodle server
* @return boolean