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[autoinstallsdev/mediawiki.git] / includes / api / ApiFeedContributions.php
diff --git a/includes/api/ApiFeedContributions.php b/includes/api/ApiFeedContributions.php
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+<?php
+/**
+ *
+ *
+ * Created on June 06, 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
+ */
+
+/**
+ * @ingroup API
+ */
+class ApiFeedContributions extends ApiBase {
+
+       /**
+        * This module uses a custom feed wrapper printer.
+        *
+        * @return ApiFormatFeedWrapper
+        */
+       public function getCustomPrinter() {
+               return new ApiFormatFeedWrapper( $this->getMain() );
+       }
+
+       public function execute() {
+               $params = $this->extractRequestParams();
+
+               $config = $this->getConfig();
+               if ( !$config->get( 'Feed' ) ) {
+                       $this->dieWithError( 'feed-unavailable' );
+               }
+
+               $feedClasses = $config->get( 'FeedClasses' );
+               if ( !isset( $feedClasses[$params['feedformat']] ) ) {
+                       $this->dieWithError( 'feed-invalid' );
+               }
+
+               if ( $params['showsizediff'] && $this->getConfig()->get( 'MiserMode' ) ) {
+                       $this->dieWithError( 'apierror-sizediffdisabled' );
+               }
+
+               $msg = wfMessage( 'Contributions' )->inContentLanguage()->text();
+               $feedTitle = $config->get( 'Sitename' ) . ' - ' . $msg .
+                       ' [' . $config->get( 'LanguageCode' ) . ']';
+               $feedUrl = SpecialPage::getTitleFor( 'Contributions', $params['user'] )->getFullURL();
+
+               $target = $params['user'] == 'newbies'
+                       ? 'newbies'
+                       : Title::makeTitleSafe( NS_USER, $params['user'] )->getText();
+
+               $feed = new $feedClasses[$params['feedformat']] (
+                       $feedTitle,
+                       htmlspecialchars( $msg ),
+                       $feedUrl
+               );
+
+               // Convert year/month parameters to end parameter
+               $params['start'] = '';
+               $params['end'] = '';
+               $params = ContribsPager::processDateFilter( $params );
+
+               $pager = new ContribsPager( $this->getContext(), [
+                       'target' => $target,
+                       'namespace' => $params['namespace'],
+                       'start' => $params['start'],
+                       'end' => $params['end'],
+                       'tagFilter' => $params['tagfilter'],
+                       'deletedOnly' => $params['deletedonly'],
+                       'topOnly' => $params['toponly'],
+                       'newOnly' => $params['newonly'],
+                       'hideMinor' => $params['hideminor'],
+                       'showSizeDiff' => $params['showsizediff'],
+               ] );
+
+               $feedLimit = $this->getConfig()->get( 'FeedLimit' );
+               if ( $pager->getLimit() > $feedLimit ) {
+                       $pager->setLimit( $feedLimit );
+               }
+
+               $feedItems = [];
+               if ( $pager->getNumRows() > 0 ) {
+                       $count = 0;
+                       $limit = $pager->getLimit();
+                       foreach ( $pager->mResult as $row ) {
+                               // ContribsPager selects one more row for navigation, skip that row
+                               if ( ++$count > $limit ) {
+                                       break;
+                               }
+                               $item = $this->feedItem( $row );
+                               if ( $item !== null ) {
+                                       $feedItems[] = $item;
+                               }
+                       }
+               }
+
+               ApiFormatFeedWrapper::setResult( $this->getResult(), $feed, $feedItems );
+       }
+
+       protected function feedItem( $row ) {
+               // This hook is the api contributions equivalent to the
+               // ContributionsLineEnding hook. Hook implementers may cancel
+               // the hook to signal the user is not allowed to read this item.
+               $feedItem = null;
+               $hookResult = Hooks::run(
+                       'ApiFeedContributions::feedItem',
+                       [ $row, $this->getContext(), &$feedItem ]
+               );
+               // Hook returned a valid feed item
+               if ( $feedItem instanceof FeedItem ) {
+                       return $feedItem;
+               // Hook was canceled and did not return a valid feed item
+               } elseif ( !$hookResult ) {
+                       return null;
+               }
+
+               // Hook completed and did not return a valid feed item
+               $title = Title::makeTitle( intval( $row->page_namespace ), $row->page_title );
+               if ( $title && $title->userCan( 'read', $this->getUser() ) ) {
+                       $date = $row->rev_timestamp;
+                       $comments = $title->getTalkPage()->getFullURL();
+                       $revision = Revision::newFromRow( $row );
+
+                       return new FeedItem(
+                               $title->getPrefixedText(),
+                               $this->feedItemDesc( $revision ),
+                               $title->getFullURL( [ 'diff' => $revision->getId() ] ),
+                               $date,
+                               $this->feedItemAuthor( $revision ),
+                               $comments
+                       );
+               }
+
+               return null;
+       }
+
+       /**
+        * @param Revision $revision
+        * @return string
+        */
+       protected function feedItemAuthor( $revision ) {
+               return $revision->getUserText();
+       }
+
+       /**
+        * @param Revision $revision
+        * @return string
+        */
+       protected function feedItemDesc( $revision ) {
+               if ( $revision ) {
+                       $msg = wfMessage( 'colon-separator' )->inContentLanguage()->text();
+                       $content = $revision->getContent();
+
+                       if ( $content instanceof TextContent ) {
+                               // only textual content has a "source view".
+                               $html = nl2br( htmlspecialchars( $content->getNativeData() ) );
+                       } else {
+                               // XXX: we could get an HTML representation of the content via getParserOutput, but that may
+                               //     contain JS magic and generally may not be suitable for inclusion in a feed.
+                               //     Perhaps Content should have a getDescriptiveHtml method and/or a getSourceText method.
+                               // Compare also FeedUtils::formatDiffRow.
+                               $html = '';
+                       }
+
+                       return '<p>' . htmlspecialchars( $revision->getUserText() ) . $msg .
+                               htmlspecialchars( FeedItem::stripComment( $revision->getComment() ) ) .
+                               "</p>\n<hr />\n<div>" . $html . '</div>';
+               }
+
+               return '';
+       }
+
+       public function getAllowedParams() {
+               $feedFormatNames = array_keys( $this->getConfig()->get( 'FeedClasses' ) );
+
+               $ret = [
+                       'feedformat' => [
+                               ApiBase::PARAM_DFLT => 'rss',
+                               ApiBase::PARAM_TYPE => $feedFormatNames
+                       ],
+                       'user' => [
+                               ApiBase::PARAM_TYPE => 'user',
+                               ApiBase::PARAM_REQUIRED => true,
+                       ],
+                       'namespace' => [
+                               ApiBase::PARAM_TYPE => 'namespace'
+                       ],
+                       'year' => [
+                               ApiBase::PARAM_TYPE => 'integer'
+                       ],
+                       'month' => [
+                               ApiBase::PARAM_TYPE => 'integer'
+                       ],
+                       'tagfilter' => [
+                               ApiBase::PARAM_ISMULTI => true,
+                               ApiBase::PARAM_TYPE => array_values( ChangeTags::listDefinedTags() ),
+                               ApiBase::PARAM_DFLT => '',
+                       ],
+                       'deletedonly' => false,
+                       'toponly' => false,
+                       'newonly' => false,
+                       'hideminor' => false,
+                       'showsizediff' => [
+                               ApiBase::PARAM_DFLT => false,
+                       ],
+               ];
+
+               if ( $this->getConfig()->get( 'MiserMode' ) ) {
+                       $ret['showsizediff'][ApiBase::PARAM_HELP_MSG] = 'api-help-param-disabled-in-miser-mode';
+               }
+
+               return $ret;
+       }
+
+       protected function getExamplesMessages() {
+               return [
+                       'action=feedcontributions&user=Example'
+                               => 'apihelp-feedcontributions-example-simple',
+               ];
+       }
+}