Reorg: Move LinkFilter to ExternalLinks

It's one-class namespace and I know it's not great but:
 - I hope to add more classes with the redesign of externallinks table
 - It's not named very well either, it's a collection of URL-related
   functionalities
 - Making it clear LinkFilter is about external links, not internal or
   interwiki or templatelinks etc.

Bug: T321882
Change-Id: I0dd530237f45e4fec786178ec03ee941c6bcd982

autoload.php

@@ -759,7 +759,7 @@ $wgAutoloadLocalClasses = [
 	'Licenses' => __DIR__ . '/includes/specials/formfields/Licenses.php',
 	'LinkBatch' => __DIR__ . '/includes/cache/LinkBatch.php',
 	'LinkCache' => __DIR__ . '/includes/cache/LinkCache.php',
-	'LinkFilter' => __DIR__ . '/includes/LinkFilter.php',
+	'LinkFilter' => __DIR__ . '/includes/ExternalLinks/LinkFilter.php',
 	'LinkHolderArray' => __DIR__ . '/includes/parser/LinkHolderArray.php',
 	'Linker' => __DIR__ . '/includes/linker/Linker.php',
 	'LinksDeletionUpdate' => __DIR__ . '/includes/deferred/LinksUpdate/LinksDeletionUpdate.php',
@@ -1085,6 +1085,7 @@ $wgAutoloadLocalClasses = [
 	'MediaWiki\\Emptiable' => __DIR__ . '/includes/Emptiable.php',
 	'MediaWiki\\Export\\WikiExporterFactory' => __DIR__ . '/includes/export/WikiExporterFactory.php',
 	'MediaWiki\\ExtensionInfo' => __DIR__ . '/includes/ExtensionInfo.php',
+	'MediaWiki\\ExternalLinks\\LinkFilter' => __DIR__ . '/includes/ExternalLinks/LinkFilter.php',
 	'MediaWiki\\Feed\\AtomFeed' => __DIR__ . '/includes/Feed/AtomFeed.php',
 	'MediaWiki\\Feed\\ChannelFeed' => __DIR__ . '/includes/Feed/ChannelFeed.php',
 	'MediaWiki\\Feed\\FeedItem' => __DIR__ . '/includes/Feed/FeedItem.php',

includes/ExternalLinks/LinkFilter.php

@@ -20,8 +20,13 @@
  * @file
  */
 
+namespace MediaWiki\ExternalLinks;
+
+use Content;
 use MediaWiki\MainConfigNames;
 use MediaWiki\MediaWikiServices;
+use StringUtils;
+use TextContent;
 use Wikimedia\IPUtils;
 use Wikimedia\Rdbms\LikeMatch;
 
@@ -414,3 +419,5 @@ class LinkFilter {
 		return $arr;
 	}
 }
+
+class_alias( LinkFilter::class, 'LinkFilter' );

includes/api/ApiQueryExtLinksUsage.php

@@ -21,6 +21,7 @@
  * @file
  */
 
+use MediaWiki\ExternalLinks\LinkFilter;
 use MediaWiki\MainConfigNames;
 use Wikimedia\ParamValidator\ParamValidator;
 use Wikimedia\ParamValidator\TypeDef\IntegerDef;

includes/api/ApiQueryExternalLinks.php

@@ -20,6 +20,7 @@
  * @file
  */
 
+use MediaWiki\ExternalLinks\LinkFilter;
 use Wikimedia\ParamValidator\ParamValidator;
 use Wikimedia\ParamValidator\TypeDef\IntegerDef;
 

includes/deferred/LinksUpdate/ExternalLinksTable.php

@@ -3,8 +3,8 @@
 namespace MediaWiki\Deferred\LinksUpdate;
 
 use Config;
-use LinkFilter;
 use MediaWiki\Config\ServiceOptions;
+use MediaWiki\ExternalLinks\LinkFilter;
 use MediaWiki\MainConfigNames;
 use ParserOutput;
 

includes/specials/SpecialLinkSearch.php

@@ -23,6 +23,7 @@
  */
 
 use MediaWiki\Cache\LinkBatchFactory;
+use MediaWiki\ExternalLinks\LinkFilter;
 use MediaWiki\Linker\Linker;
 use MediaWiki\MainConfigNames;
 use MediaWiki\Utils\UrlUtils;

maintenance/cleanupSpam.php

@@ -21,6 +21,7 @@
  * @ingroup Maintenance
  */
 
+use MediaWiki\ExternalLinks\LinkFilter;
 use MediaWiki\MediaWikiServices;
 use MediaWiki\Permissions\Authority;
 use MediaWiki\Revision\RevisionRecord;

maintenance/deleteSelfExternals.php

@@ -21,6 +21,7 @@
  * @ingroup Maintenance
  */
 
+use MediaWiki\ExternalLinks\LinkFilter;
 use MediaWiki\MainConfigNames;
 
 require_once __DIR__ . '/Maintenance.php';

maintenance/migrateExternallinks.php

@@ -1,5 +1,7 @@
 <?php
 
+use MediaWiki\ExternalLinks\LinkFilter;
+
 require_once __DIR__ . '/Maintenance.php';
 
 /**

maintenance/refreshExternallinksIndex.php

@@ -21,6 +21,8 @@
  * @ingroup Maintenance
  */
 
+use MediaWiki\ExternalLinks\LinkFilter;
+
 require_once __DIR__ . '/Maintenance.php';
 
 /**

tests/phpunit/includes/LinkFilterTest.php

@@ -1,5 +1,6 @@
 <?php
 
+use MediaWiki\ExternalLinks\LinkFilter;
 use MediaWiki\MainConfigNames;
 use Wikimedia\Rdbms\LikeMatch;