ApiFeedContributions.php

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<?php
class ApiFeedContributions extends ApiBase {

        public function __construct( $main, $action ) {
                parent::__construct( $main, $action );
        }

        public function getCustomPrinter() {
                return new ApiFormatFeedWrapper( $this->getMain() );
        }

        public function execute() {
                $params = $this->extractRequestParams();

                global $wgFeed, $wgFeedClasses, $wgSitename, $wgLanguageCode;

                if( !$wgFeed ) {
                        $this->dieUsage( 'Syndication feeds are not available', 'feed-unavailable' );
                }

                if( !isset( $wgFeedClasses[ $params['feedformat'] ] ) ) {
                        $this->dieUsage( 'Invalid subscription feed type', 'feed-invalid' );
                }

                global $wgMiserMode;
                if ( $params['showsizediff'] && $wgMiserMode ) {
                        $this->dieUsage( 'Size difference is disabled in Miser Mode', 'sizediffdisabled' );
                }

                $msg = wfMessage( 'Contributions' )->inContentLanguage()->text();
                $feedTitle = $wgSitename . ' - ' . $msg . ' [' . $wgLanguageCode . ']';
                $feedUrl = SpecialPage::getTitleFor( 'Contributions', $params['user'] )->getFullURL();

                $target = $params['user'] == 'newbies'
                                ? 'newbies'
                                : Title::makeTitleSafe( NS_USER, $params['user'] )->getText();

                $feed = new $wgFeedClasses[$params['feedformat']] (
                        $feedTitle,
                        htmlspecialchars( $msg ),
                        $feedUrl
                );

                $pager = new ContribsPager( $this->getContext(), array(
                        'target' => $target,
                        'namespace' => $params['namespace'],
                        'year' => $params['year'],
                        'month' => $params['month'],
                        'tagFilter' => $params['tagfilter'],
                        'deletedOnly' => $params['deletedonly'],
                        'topOnly' => $params['toponly'],
                        'showSizeDiff' => $params['showsizediff'],
                ) );

                $feedItems = array();
                if( $pager->getNumRows() > 0 ) {
                        foreach ( $pager->mResult as $row ) {
                                $feedItems[] = $this->feedItem( $row );
                        }
                }

                ApiFormatFeedWrapper::setResult( $this->getResult(), $feed, $feedItems );
        }

        protected function feedItem( $row ) {
                $title = Title::makeTitle( intval( $row->page_namespace ), $row->page_title );
                if( $title ) {
                        $date = $row->rev_timestamp;
                        $comments = $title->getTalkPage()->getFullURL();
                        $revision = Revision::newFromRow( $row );

                        return new FeedItem(
                                $title->getPrefixedText(),
                                $this->feedItemDesc( $revision ),
                                $title->getFullURL(),
                                $date,
                                $this->feedItemAuthor( $revision ),
                                $comments
                        );
                } else {
                        return null;
                }
        }

        protected function feedItemAuthor( $revision ) {
                return $revision->getUserText();
        }

        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() {
                global $wgFeedClasses;
                $feedFormatNames = array_keys( $wgFeedClasses );
                return array (
                        'feedformat' => array(
                                ApiBase::PARAM_DFLT => 'rss',
                                ApiBase::PARAM_TYPE => $feedFormatNames
                        ),
                        'user' => array(
                                ApiBase::PARAM_TYPE => 'user',
                                ApiBase::PARAM_REQUIRED => true,
                        ),
                        'namespace' => array(
                                ApiBase::PARAM_TYPE => 'namespace'
                        ),
                        'year' => array(
                                ApiBase::PARAM_TYPE => 'integer'
                        ),
                        'month' => array(
                                ApiBase::PARAM_TYPE => 'integer'
                        ),
                        'tagfilter' => array(
                                ApiBase::PARAM_ISMULTI => true,
                                ApiBase::PARAM_TYPE => array_values( ChangeTags::listDefinedTags() ),
                                ApiBase::PARAM_DFLT => '',
                        ),
                        'deletedonly' => false,
                        'toponly' => false,
                        'showsizediff' => false,
                );
        }

        public function getParamDescription() {
                return array(
                        'feedformat' => 'The format of the feed',
                        'user' => 'What users to get the contributions for',
                        'namespace' => 'What namespace to filter the contributions by',
                        'year' => 'From year (and earlier)',
                        'month' => 'From month (and earlier)',
                        'tagfilter' => 'Filter contributions that have these tags',
                        'deletedonly' => 'Show only deleted contributions',
                        'toponly' => 'Only show edits that are latest revisions',
                        'showsizediff' => 'Show the size difference between revisions. Disabled in Miser Mode',
                );
        }

        public function getDescription() {
                return 'Returns a user contributions feed';
        }

        public function getPossibleErrors() {
                return array_merge( parent::getPossibleErrors(), array(
                        array( 'code' => 'feed-unavailable', 'info' => 'Syndication feeds are not available' ),
                        array( 'code' => 'feed-invalid', 'info' => 'Invalid subscription feed type' ),
                        array( 'code' => 'sizediffdisabled', 'info' => 'Size difference is disabled in Miser Mode' ),
                ) );
        }

        public function getExamples() {
                return array(
                        'api.php?action=feedcontributions&user=Reedy',
                );
        }

        public function getVersion() {
                return __CLASS__ . ': $Id$';
        }
}