1 files changed, 145 insertions, 0 deletions
diff --git a/www/wiki/includes/parser/MWTidy.php b/www/wiki/includes/parser/MWTidy.php
new file mode 100644
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+++ b/www/wiki/includes/parser/MWTidy.php
@@ -0,0 +1,145 @@
+<?php
+/**
+ * HTML validation and correction
+ *
+ * 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
+ * @ingroup Parser
+ */
+
+/**
+ * Class to interact with HTML tidy
+ *
+ * Either the external tidy program or the in-process tidy extension
+ * will be used depending on availability. Override the default
+ * $wgTidyInternal setting to disable the internal if it's not working.
+ *
+ * @ingroup Parser
+ */
+class MWTidy {
+	private static $instance;
+
+	/**
+	 * Interface with html tidy.
+	 * If tidy isn't able to correct the markup, the original will be
+	 * returned in all its glory with a warning comment appended.
+	 *
+	 * @param string $text HTML input fragment. This should not contain a
+	 *                     <body> or <html> tag.
+	 * @return string Corrected HTML output
+	 * @throws MWException
+	 */
+	public static function tidy( $text ) {
+		$driver = self::singleton();
+		if ( !$driver ) {
+			throw new MWException( __METHOD__ .
+				': tidy is disabled, caller should have checked MWTidy::isEnabled()' );
+		}
+		return $driver->tidy( $text );
+	}
+
+	/**
+	 * @return bool
+	 */
+	public static function isEnabled() {
+		return self::singleton() !== false;
+	}
+
+	/**
+	 * @return bool|\MediaWiki\Tidy\TidyDriverBase
+	 */
+	public static function singleton() {
+		global $wgUseTidy, $wgTidyInternal, $wgTidyConf, $wgDebugTidy, $wgTidyConfig,
+			$wgTidyBin, $wgTidyOpts;
+
+		if ( self::$instance === null ) {
+			if ( $wgTidyConfig !== null ) {
+				$config = $wgTidyConfig;
+			} elseif ( $wgUseTidy ) {
+				// b/c configuration
+				$config = [
+					'tidyConfigFile' => $wgTidyConf,
+					'debugComment' => $wgDebugTidy,
+					'tidyBin' => $wgTidyBin,
+					'tidyCommandLine' => $wgTidyOpts ];
+				if ( $wgTidyInternal ) {
+					if ( wfIsHHVM() ) {
+						$config['driver'] = 'RaggettInternalHHVM';
+					} else {
+						$config['driver'] = 'RaggettInternalPHP';
+					}
+				} else {
+					$config['driver'] = 'RaggettExternal';
+				}
+			} else {
+				return false;
+			}
+			self::$instance = self::factory( $config );
+		}
+		return self::$instance;
+	}
+
+	/**
+	 * Create a new Tidy driver object from configuration.
+	 * @see $wgTidyConfig
+	 * @param array $config
+	 * @return bool|\MediaWiki\Tidy\TidyDriverBase
+	 * @throws MWException
+	 */
+	public static function factory( array $config ) {
+		switch ( $config['driver'] ) {
+			case 'RaggettInternalHHVM':
+				$instance = new MediaWiki\Tidy\RaggettInternalHHVM( $config );
+				break;
+			case 'RaggettInternalPHP':
+				$instance = new MediaWiki\Tidy\RaggettInternalPHP( $config );
+				break;
+			case 'RaggettExternal':
+				$instance = new MediaWiki\Tidy\RaggettExternal( $config );
+				break;
+			case 'Html5Depurate':
+				$instance = new MediaWiki\Tidy\Html5Depurate( $config );
+				break;
+			case 'Html5Internal':
+				$instance = new MediaWiki\Tidy\Html5Internal( $config );
+				break;
+			case 'RemexHtml':
+				$instance = new MediaWiki\Tidy\RemexDriver( $config );
+				break;
+			case 'disabled':
+				return false;
+			default:
+				throw new MWException( "Invalid tidy driver: \"{$config['driver']}\"" );
+		}
+		return $instance;
+	}
+
+	/**
+	 * Set the driver to be used. This is for testing.
+	 * @param MediaWiki\Tidy\TidyDriverBase|false|null $instance
+	 */
+	public static function setInstance( $instance ) {
+		self::$instance = $instance;
+	}
+
+	/**
+	 * Destroy the current singleton instance
+	 */
+	public static function destroySingleton() {
+		self::$instance = null;
+	}
+}