X-Git-Url: https://scripts.mit.edu/gitweb/autoinstallsdev/mediawiki.git/blobdiff_plain/19e297c21b10b1b8a3acad5e73fc71dcb35db44a..6932310fd58ebef145fa01eb76edf7150284d8ea:/includes/specials/SpecialMyLanguage.php

diff --git a/includes/specials/SpecialMyLanguage.php b/includes/specials/SpecialMyLanguage.php
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+<?php
+/**
+ * Implements Special:MyLanguage
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Niklas Laxström
+ * @author Siebrand Mazeland
+ * @copyright Copyright © 2010-2013 Niklas Laxström, Siebrand Mazeland
+ */
+
+/**
+ * Unlisted special page just to redirect the user to the translated version of
+ * a page, if it exists.
+ *
+ * Usage: [[Special:MyLanguage/Page name|link text]]
+ *
+ * @since 1.24
+ * @ingroup SpecialPage
+ */
+class SpecialMyLanguage extends RedirectSpecialArticle {
+	public function __construct() {
+		parent::__construct( 'MyLanguage' );
+	}
+
+	/**
+	 * If the special page is a redirect, then get the Title object it redirects to.
+	 * False otherwise.
+	 *
+	 * @param string|null $subpage
+	 * @return Title
+	 */
+	public function getRedirect( $subpage ) {
+		$title = $this->findTitle( $subpage );
+		// Go to the main page if given invalid title.
+		if ( !$title ) {
+			$title = Title::newMainPage();
+		}
+		return $title;
+	}
+
+	/**
+	 * Assuming the user's interface language is fi. Given input Page, it
+	 * returns Page/fi if it exists, otherwise Page. Given input Page/de,
+	 * it returns Page/fi if it exists, otherwise Page/de if it exists,
+	 * otherwise Page.
+	 *
+	 * @param string|null $subpage
+	 * @return Title|null
+	 */
+	public function findTitle( $subpage ) {
+		// base = title without language code suffix
+		// provided = the title as it was given
+		$base = $provided = null;
+		if ( $subpage !== null ) {
+			$provided = Title::newFromText( $subpage );
+			$base = $provided;
+		}
+
+		if ( $provided && strpos( $subpage, '/' ) !== false ) {
+			$pos = strrpos( $subpage, '/' );
+			$basepage = substr( $subpage, 0, $pos );
+			$code = substr( $subpage, $pos + 1 );
+			if ( strlen( $code ) && Language::isKnownLanguageTag( $code ) ) {
+				$base = Title::newFromText( $basepage );
+			}
+		}
+
+		if ( !$base ) {
+			return null;
+		}
+
+		if ( $base->isRedirect() ) {
+			$page = new WikiPage( $base );
+			$base = $page->getRedirectTarget();
+		}
+
+		$uiCode = $this->getLanguage()->getCode();
+		$proposed = $base->getSubpage( $uiCode );
+		if ( $proposed && $proposed->exists() && $uiCode !== $base->getPageLanguage()->getCode() ) {
+			return $proposed;
+		} elseif ( $provided && $provided->exists() ) {
+			return $provided;
+		} else {
+			return $base;
+		}
+	}
+
+	/**
+	 * Target can identify a specific user's language preference.
+	 *
+	 * @see T109724
+	 * @since 1.27
+	 * @return bool
+	 */
+	public function personallyIdentifiableTarget() {
+		return true;
+	}
+}