Add mw.ext.TitleBlacklist.test

Add lua method mw.ext.TitleBlacklist.test(action, title), which tests
whether a titleblacklist entry is active for a given title and action, and
if so, returns details of the entry.

Change-Id: I4360d1ad4e602d58dabd12b683d338a0e09a2950

TitleBlacklist.library.php

@@ -0,0 +1,33 @@
+<?php
+
+class Scribunto_LuaTitleBlacklistLibrary extends Scribunto_LuaLibraryBase {
+	public function register() {
+		$lib = array(
+			'test' => array( $this, 'test' ),
+		);
+
+		$this->getEngine()->registerInterface( __DIR__ . '/mw.ext.TitleBlacklist.lua', $lib, array() );
+	}
+
+	public function test( $action = null, $title = null ) {
+		$this->checkType( 'mw.ext.TitleBlacklist.test', 1, $action, 'string' );
+		$this->checkTypeOptional( 'mw.ext.TitleBlacklist.test', 2, $title, 'string', '' );
+		$this->incrementExpensiveFunctionCount();
+		if ( $title == '' ) {
+			$title = $this->getParser()->mTitle->getPrefixedText();
+		}
+		$entry = TitleBlacklist::singleton()->isBlacklisted( $title, $action );
+		if ( $entry ) {
+			return array( array(
+				'params' => $entry->getParams(),
+				'regex' => $entry->getRegex(),
+				'raw' => $entry->getRaw(),
+				'version' => $entry->getFormatVersion(),
+				'message' => $entry->getErrorMessage( $action ),
+				'custommessage' => $entry->getCustomMessage()
+			) );
+		}
+		return array( null );
+	}
+
+}

TitleBlacklist.list.php

@@ -156,7 +156,12 @@ class TitleBlacklist {
 		if ( $override && self::userCanOverride( $user, $action ) ) {
 			return false;
 		} else {
-			return $this->isBlacklisted( $title, $action );
+			$entry = $this->isBlacklisted( $title, $action );
+			if ( !$entry ) {
+				return false;
+			}
+			$params = $entry->getParams();
+			return isset( $params['autoconfirmed'] ) && $user->isAllowed( 'autoconfirmed' ) ? false : $entry;
 		}
 	}
 
@@ -172,17 +177,29 @@ class TitleBlacklist {
 	public function isBlacklisted( $title, $action = 'edit' ) {
 		if ( !( $title instanceof Title ) ) {
 			$title = Title::newFromText( $title );
+			if ( !( $title instanceof Title ) ) {
+				// The fact that the page name is invalid will stop whatever
+				// action is going through. No sense in doing more work here.
+				return false;
+			}
 		}
 		$blacklist = $this->getBlacklist();
+		$autoconfirmedItem = false;
 		foreach ( $blacklist as $item ) {
 			if ( $item->matches( $title->getFullText(), $action ) ) {
 				if ( $this->isWhitelisted( $title, $action ) ) {
 					return false;
 				}
-				return $item; // "returning true"
+				$params = $item->getParams();
+				if ( !isset( $params['autoconfirmed'] ) ) {
+					return $item;
+				}
+				if ( !$autoconfirmedItem ) {
+					$autoconfirmedItem = $item;
+				}
 			}
 		}
-		return false;
+		return $autoconfirmedItem;
 	}
 
 	/**
@@ -370,11 +387,7 @@ class TitleBlacklistEntry {
 		$match = preg_match( "/^(?:{$this->mRegex})$/us" . ( isset( $this->mParams['casesensitive'] ) ? '' : 'i' ), $title );
 		wfRestoreWarnings();
 
-		global $wgUser;
 		if ( $match ) {
-			if ( isset( $this->mParams['autoconfirmed'] ) && $wgUser->isAllowed( 'autoconfirmed' ) ) {
-				return false;
-			}
 			if ( isset( $this->mParams['moveonly'] ) && $action != 'move' ) {
 				return false;
 			}
@@ -481,10 +494,10 @@ class TitleBlacklistEntry {
 	}
 
 	/**
-	 * @return array This entry's options
+	 * @return array This entry's parameters
 	 */
-	public function getOptions() {
-		return $this->mOptions;
+	public function getParams() {
+		return $this->mParams;
 	}
 
 	/**

TitleBlacklist.php

@@ -22,6 +22,7 @@ $dir = __DIR__;
 $wgExtensionMessagesFiles['TitleBlacklist'] = $dir . '/TitleBlacklist.i18n.php';
 $wgAutoloadClasses['TitleBlacklist'] = $dir . '/TitleBlacklist.list.php';
 $wgAutoloadClasses['TitleBlacklistHooks'] = $dir . '/TitleBlacklist.hooks.php';
+$wgAutoloadClasses['Scribunto_LuaTitleBlacklistLibrary'] = $dir . '/TitleBlacklist.library.php';
 
 /** @defgroup Title blacklist source types
  *  @{
@@ -80,6 +81,12 @@ $wgHooks['UnitTestsList'][] = function( &$files ) {
 	$files += glob( __DIR__ . '/tests/*Test.php' );
 	return true;
 };
+$wgHooks['ScribuntoExternalLibraries'][] = function( $engine, array &$extraLibraries ) {
+	if( $engine == 'lua' ) {
+		$extraLibraries['mw.ext.TitleBlacklist'] = 'Scribunto_LuaTitleBlacklistLibrary';
+	}
+	return true;
+};
 
 $wgResourceModules['mediawiki.api.titleblacklist'] = array(
 	'scripts' => 'mediawiki.api.titleblacklist.js',

mw.ext.TitleBlacklist.lua

@@ -0,0 +1,22 @@
+local TitleBlacklist = {}
+local php
+
+function TitleBlacklist.test( action, title )
+	return php.test( action, title )
+end
+
+function TitleBlacklist.setupInterface( options )
+	-- Boilerplate
+	TitleBlacklist.setupInterface = nil
+	php = mw_interface
+	mw_interface = nil
+
+	-- Register this library in the "mw" global
+	mw = mw or {}
+	mw.ext = mw.ext or {}
+	mw.ext.TitleBlacklist = TitleBlacklist
+
+	package.loaded['mw.ext.TitleBlacklist'] = TitleBlacklist
+end
+
+return TitleBlacklist