mediawiki-extensions-Gadgets/includes/Gadget.php

414 lines
9.7 KiB
PHP

<?php
/**
* Gadgets extension - lets users select custom javascript gadgets
*
* For more info see https://www.mediawiki.org/wiki/Extension:Gadgets
*
* @file
* @ingroup Extensions
* @author Daniel Kinzler, brightbyte.de
* @copyright © 2007 Daniel Kinzler
* @license GPL-2.0-or-later
*/
use MediaWiki\MediaWikiServices;
use MediaWiki\Permissions\Authority;
use MediaWiki\User\UserIdentity;
/**
* Wrapper for one gadget.
*/
class Gadget {
/**
* Increment this when changing class structure
*/
public const GADGET_CLASS_VERSION = 12;
public const CACHE_TTL = 86400;
/** @var string[] */
private $scripts = [];
/** @var string[] */
private $styles = [];
/** @var string[] */
private $datas = [];
/** @var string[] */
private $dependencies = [];
/** @var string[] */
private $peers = [];
/** @var string[] */
private $messages = [];
/** @var string|null */
private $name;
/** @var string|null */
private $definition;
/** @var bool */
private $resourceLoaded = false;
/** @var string[] */
private $requiredRights = [];
/** @var string[] */
private $requiredActions = [];
/** @var string[] */
private $requiredSkins = [];
/** @var string[] */
private $targets = [ 'desktop' ];
/** @var bool */
private $onByDefault = false;
/** @var bool */
private $hidden = false;
/** @var bool */
private $package = false;
/** @var string */
private $type = '';
/** @var string|null */
private $category;
/** @var bool */
private $supportsUrlLoad = false;
public function __construct( array $options ) {
foreach ( $options as $member => $option ) {
switch ( $member ) {
case 'scripts':
case 'styles':
case 'datas':
case 'dependencies':
case 'peers':
case 'messages':
case 'name':
case 'definition':
case 'resourceLoaded':
case 'requiredRights':
case 'requiredActions':
case 'requiredSkins':
case 'targets':
case 'onByDefault':
case 'type':
case 'hidden':
case 'package':
case 'category':
case 'supportsUrlLoad':
$this->{$member} = $option;
break;
default:
throw new InvalidArgumentException( "Unrecognized '$member' parameter" );
}
}
}
/**
* Create a object based on the metadata in a GadgetDefinitionContent object
*
* @param string $id
* @param GadgetDefinitionContent $content
* @return Gadget
*/
public static function newFromDefinitionContent( $id, GadgetDefinitionContent $content ) {
$data = $content->getAssocArray();
$prefixGadgetNs = static function ( $page ) {
return 'Gadget:' . $page;
};
$info = [
'name' => $id,
'resourceLoaded' => true,
'requiredRights' => $data['settings']['rights'],
'onByDefault' => $data['settings']['default'],
'package' => $data['settings']['package'],
'hidden' => $data['settings']['hidden'],
'requiredActions' => $data['settings']['actions'],
'requiredSkins' => $data['settings']['skins'],
'category' => $data['settings']['category'],
'supportsUrlLoad' => $data['settings']['supportsUrlLoad'],
'scripts' => array_map( $prefixGadgetNs, $data['module']['scripts'] ),
'styles' => array_map( $prefixGadgetNs, $data['module']['styles'] ),
'datas' => array_map( $prefixGadgetNs, $data['module']['datas'] ),
'dependencies' => $data['module']['dependencies'],
'peers' => $data['module']['peers'],
'messages' => $data['module']['messages'],
'type' => $data['module']['type'],
];
return new self( $info );
}
/**
* Get a placeholder object to use if a gadget doesn't exist
*
* @param string $id name
* @return Gadget
*/
public static function newEmptyGadget( $id ) {
return new self( [ 'name' => $id ] );
}
/**
* Whether the provided gadget id is valid
*
* @param string $id
* @return bool
*/
public static function isValidGadgetID( $id ) {
return strlen( $id ) > 0 && ResourceLoader::isValidModuleName( self::getModuleName( $id ) );
}
/**
* @return string Gadget name
*/
public function getName() {
return $this->name;
}
/**
* @return string Message key
*/
public function getDescriptionMessageKey() {
return "gadget-{$this->getName()}";
}
/**
* @return string Gadget description parsed into HTML
*/
public function getDescription() {
return wfMessage( $this->getDescriptionMessageKey() )->parse();
}
/**
* @return string Wikitext of gadget description
*/
public function getRawDescription() {
return wfMessage( $this->getDescriptionMessageKey() )->plain();
}
/**
* @return string Name of category (aka section) our gadget belongs to. Empty string if none.
*/
public function getCategory() {
return $this->category;
}
/**
* @param string $id Name of gadget
* @return string Name of ResourceLoader module for the gadget
*/
public static function getModuleName( $id ) {
return "ext.gadget.{$id}";
}
/**
* Checks whether this gadget is enabled for given user
*
* @param UserIdentity $user user to check against
* @return bool
*/
public function isEnabled( UserIdentity $user ) {
$userOptionsLookup = MediaWikiServices::getInstance()->getUserOptionsLookup();
return (bool)$userOptionsLookup->getOption( $user, "gadget-{$this->name}", $this->onByDefault );
}
/**
* Checks whether given user has permissions to use this gadget
*
* @param Authority $user The user to check against
* @return bool
*/
public function isAllowed( Authority $user ) {
if ( count( $this->requiredRights ) ) {
return $user->isAllowedAll( ...$this->requiredRights );
}
return true;
}
/**
* @return bool Whether this gadget is on by default for everyone
* (but can be disabled in preferences)
*/
public function isOnByDefault() {
return $this->onByDefault;
}
/**
* @return bool
*/
public function isHidden() {
return $this->hidden;
}
/**
* @return bool
*/
public function isPackaged(): bool {
// A packaged gadget needs to have a main script, so there must be at least one script
return $this->package && $this->supportsResourceLoader() && count( $this->scripts ) > 0;
}
/**
* @param string $action The action name
* @return bool
*/
public function isActionSupported( string $action ): bool {
if ( count( $this->requiredActions ) === 0 ) {
return true;
}
// Don't require specifying 'submit' action in addition to 'edit'
if ( $action == 'submit' ) {
$action = 'edit';
}
return in_array( $action, $this->requiredActions );
}
/**
* Check if this gadget is compatible with a skin
*
* @param Skin $skin The skin to check against
* @return bool
*/
public function isSkinSupported( Skin $skin ) {
return ( count( $this->requiredSkins ) === 0
|| in_array( $skin->getSkinName(), $this->requiredSkins )
);
}
/**
* @return bool Whether the gadget can be loaded with `?withgadget` query parameter.
*/
public function supportsUrlLoad() {
return $this->supportsUrlLoad;
}
/**
* @return bool Whether all of this gadget's JS components support ResourceLoader
*/
public function supportsResourceLoader() {
return $this->resourceLoaded;
}
/**
* @return bool Whether this gadget has resources that can be loaded via ResourceLoader
*/
public function hasModule() {
return (
count( $this->styles ) + ( $this->supportsResourceLoader() ? count( $this->scripts ) : 0 )
) > 0;
}
/**
* @return string Definition for this gadget from MediaWiki:gadgets-definition
*/
public function getDefinition() {
return $this->definition;
}
/**
* @return array Array of pages with JS (including namespace)
*/
public function getScripts() {
return $this->scripts;
}
/**
* @return array Array of pages with CSS (including namespace)
*/
public function getStyles() {
return $this->styles;
}
/**
* @return array Array of pages with JSON (including namespace)
*/
public function getJSONs(): array {
return $this->isPackaged() ? $this->datas : [];
}
/**
* @return array Array of all of this gadget's resources
*/
public function getScriptsAndStyles() {
return array_merge( $this->scripts, $this->styles, $this->getJSONs() );
}
/**
* @return array
*/
public function getTargets() {
return $this->targets;
}
/**
* Returns list of scripts that don't support ResourceLoader
* @return string[]
*/
public function getLegacyScripts() {
if ( $this->supportsResourceLoader() ) {
return [];
}
return $this->scripts;
}
/**
* Returns names of resources this gadget depends on
* @return string[]
*/
public function getDependencies() {
return $this->dependencies;
}
/**
* Get list of extra modules that should be loaded when this gadget is enabled
*
* Primary use case is to allow a Gadget that includes JavaScript to also load
* a (usually, hidden) styles-type module to be applied to the page. Dependencies
* don't work for this use case as those would not be part of page rendering.
*
* @return string[]
*/
public function getPeers() {
return $this->peers;
}
/**
* @return array
*/
public function getMessages() {
return $this->messages;
}
/**
* Returns array of permissions required by this gadget
* @return string[]
*/
public function getRequiredRights() {
return $this->requiredRights;
}
/**
* Returns array of page actions on which the gadget runs
* @return string[]
*/
public function getRequiredActions() {
return $this->requiredActions;
}
/**
* Returns array of skins where this gadget works
* @return string[]
*/
public function getRequiredSkins() {
return $this->requiredSkins;
}
/**
* Returns the load type of this Gadget's ResourceLoader module
* @return string 'styles' or 'general'
*/
public function getType() {
if ( $this->type === 'styles' || $this->type === 'general' ) {
return $this->type;
}
// Similar to ResourceLoaderWikiModule default
if ( $this->styles && !$this->scripts && !$this->dependencies ) {
return 'styles';
}
return 'general';
}
}