--- /dev/null
+<?php
+/**
+ *
+ * Created on May 1, 2011
+ *
+ * Copyright © 2011 Sam Reed
+ *
+ * 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
+ */
+
+class ApiComparePages extends ApiBase {
+
+ public function __construct( $main, $action ) {
+ parent::__construct( $main, $action );
+ }
+
+ public function execute() {
+ $params = $this->extractRequestParams();
+
+ $rev1 = $this->revisionOrTitle( $params['fromrev'], $params['fromtitle'] );
+ $rev2 = $this->revisionOrTitle( $params['torev'], $params['totitle'] );
+
+ $de = new DifferenceEngine( null,
+ $rev1,
+ $rev2,
+ null, // rcid
+ true,
+ false );
+
+ $vals = array();
+ if ( isset( $params['fromtitle'] ) ) {
+ $vals['fromtitle'] = $params['fromtitle'];
+ }
+ $vals['fromrevid'] = $rev1;
+ if ( isset( $params['totitle'] ) ) {
+ $vals['totitle'] = $params['totitle'];
+ }
+ $vals['torevid'] = $rev2;
+
+ $difftext = $de->getDiffBody();
+ ApiResult::setContent( $vals, $difftext );
+
+ $this->getResult()->addValue( null, $this->getModuleName(), $vals );
+ }
+
+ /**
+ * @param $revision int
+ * @param $title string
+ * @return int
+ */
+ private function revisionOrTitle( $revision, $title ) {
+ if( $revision ){
+ return $revision;
+ } elseif( $title ) {
+ $title = Title::newFromText( $title );
+ if( !$title ){
+ $this->dieUsageMsg( array( 'invalidtitle', $title ) );
+ }
+ return $title->getLatestRevID();
+ }
+ $this->dieUsage( 'inputneeded', 'A title or a revision number is needed for both the from and the to parameters' );
+ }
+
+ public function getAllowedParams() {
+ return array(
+ 'fromtitle' => null,
+ 'fromrev' => array(
+ ApiBase::PARAM_TYPE => 'integer'
+ ),
+ 'totitle' => null,
+ 'torev' => array(
+ ApiBase::PARAM_TYPE => 'integer'
+ ),
+ );
+ }
+
+ public function getParamDescription() {
+ return array(
+ 'title1' => 'First title to compare',
+ 'rev1' => 'First revision to compare',
+ 'title2' => 'Second title to compare',
+ 'rev2' => 'Second revision to compare',
+ );
+ }
+ public function getDescription() {
+ return array(
+ 'Get the difference between 2 pages',
+ 'You must pass a revision number or a page title for each part (1 and 2)'
+ );
+ }
+
+ public function getPossibleErrors() {
+ return array_merge( parent::getPossibleErrors(), array(
+ array( 'code' => 'inputneeded', 'info' => 'A title or a revision is needed' ),
+ array( 'invalidtitle', 'title' ),
+ ) );
+ }
+
+ protected function getExamples() {
+ return array(
+ 'api.php?action=compare&rev1=1&rev2=2',
+ );
+ }
+
+ public function getVersion() {
+ return __CLASS__ . ': $Id$';
+ }
+}