mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-25 00:05:29 +00:00
111 lines
3.1 KiB
PHP
111 lines
3.1 KiB
PHP
<?php
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use MediaWiki\Preferences\MultiUsernameFilter;
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/**
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* Utilizes EchoContainmentList interface to provide a fluent interface to whitelist/blacklist
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* from multiple sources like global variables, wiki pages, etc.
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*
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* Initialize:
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* $cache = ObjectCache::getLocalClusterIntance();
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* $set = new EchoContainmentSet;
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* $set->addArray( $wgSomeGlobalParameter );
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* $set->addOnWiki( NS_USER, 'Foo/bar-baz', $cache, 'some_user_specific_cache_key' );
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*
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* Usage:
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* if ( $set->contains( 'SomeUser' ) ) {
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* ...
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* }
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*/
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class EchoContainmentSet {
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/**
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* @var EchoContainmentList[]
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*/
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protected $lists = [];
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/**
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* @var User
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*/
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protected $recipient;
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public function __construct( User $recipient ) {
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$this->recipient = $recipient;
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}
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/**
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* Add an EchoContainmentList to the set of lists checked by self::contains()
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*
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* @param EchoContainmentList $list
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*/
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public function add( EchoContainmentList $list ) {
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$this->lists[] = $list;
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}
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/**
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* Add a php array to the set of lists checked by self::contains()
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*
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* @param array $list
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*/
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public function addArray( array $list ) {
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$this->add( new EchoArrayList( $list ) );
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}
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/**
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* Add a list from a user preference to the set of lists checked by self::contains().
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*
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* @param string $preferenceName
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*/
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public function addFromUserOption( $preferenceName ) {
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$preference = $this->recipient->getOption( $preferenceName, [] );
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if ( $preference ) {
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$ids = MultiUsernameFilter::splitIds( $preference );
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$lookup = CentralIdLookup::factory();
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$names = $lookup->namesFromCentralIds( $ids, $this->recipient );
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$this->addArray( $names );
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}
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}
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/**
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* Add a list from a wiki page to the set of lists checked by self::contains(). Data
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* from wiki pages is cached via the BagOStuff. Caching is disabled when passing a null
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* $cache object.
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*
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* @param int $namespace An NS_* constant representing the mediawiki namespace of the page containing the list.
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* @param string $title The title of the page containing the list.
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* @param WANObjectCache|null $cache An object to cache the page with or null for no cache.
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* @param string $cacheKeyPrefix A prefix to be combined with the pages latest revision id and used as a cache key.
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*
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* @throws MWException
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*/
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public function addOnWiki(
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$namespace, $title, WANObjectCache $cache = null, $cacheKeyPrefix = ''
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) {
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$list = new EchoOnWikiList( $namespace, $title );
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if ( $cache ) {
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if ( $cacheKeyPrefix === '' ) {
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throw new MWException( 'Cache requires providing a cache key prefix.' );
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}
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$list = new EchoCachedList( $cache, $cacheKeyPrefix, $list );
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}
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$this->add( $list );
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}
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/**
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* Test the wrapped lists for existence of $value
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*
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* @param mixed $value The value to look for
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* @return bool True when the set contains the provided value
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*/
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public function contains( $value ) {
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foreach ( $this->lists as $list ) {
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// Use strict comparison to prevent the number 0 from matching all strings (T177825)
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if ( array_search( $value, $list->getValues(), true ) !== false ) {
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return true;
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}
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}
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return false;
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}
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}
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