Extension:RSS feed for recent changes

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RSS feeds for recent changes Release status: beta
Description	The extension allows you to get the RSS feeds for the recent changes made in the wiki.
Author(s)	Sushant Mehta
MediaWiki	1.11
License	No license specified
Download	no link

Contents 1 Installation 1.1 SearchFeed.i18n.php 1.2 SearchFeed.php 1.3 SearchFeed_body.php

[edit] Installation

1. Place SearchFeed.i18n.php ,SearchFeed.php and SearchFeed_body.php extension files in the extensions/SearchFeed directory.
2. Save the file in the extensions directory of mediawiki folder.
3. Add to LocalSettings.php the line

   require_once ("extensions/SearchFeed/SearchFeed.php");
   

The extension need the following three file.

[edit] SearchFeed.i18n.php

<?php
$allMessages = array(
        'en' => array(
                'searchfeed' => 'SearchFeed',
        ),
        'et' => array(
                'searchfeed'=>  'Muutuste voog',
        )
);
?>

[edit] SearchFeed.php

<?php
# Not a valid entry point, skip unless MEDIAWIKI is defined
if (!defined('MEDIAWIKI')) {
                exit( 1 );
}

$wgAutoloadClasses['SearchFeed'] = dirname(__FILE__) . '/SearchFeed_body.php';
$wgSpecialPages['SearchFeed'] = 'SearchFeed';
$wgHooks['LoadAllMessages'][] = 'wfSearchLoadMessages';
#'SearchFeed::loadMessages';
#$wgHooks['LangugeGetSpecialPageAliases'][] = 'SearchFeedLocalizedPageName';

function wfSearchLoadMessages() {
	(SearchFeed::loadMessages());
	return true;
}

?>

[edit] SearchFeed_body.php

<?php
class SearchFeed extends SpecialPage
{
        function SearchFeed() {
                SpecialPage::SpecialPage("SearchFeed");
                self::loadMessages(); 

        }

        function execute( $par ) {
                global $wgRequest, $wgOut, $wgParser, $wgUser;
				global $wgFeedClasses, $wgTitle, $wgSitename, $wgContLang, $wgContLanguageCode;

				$feedFormat = $wgRequest->getVal( 'feed', 'rss' );

				if( !isset( $wgFeedClasses[$feedFormat] ) ) {
					wfHttpError( 500, "Internal Server Error", "Unsupported feed type." );
					return false;
				}

				$feedTitle = $wgSitename . ' - ' . ' [' . $wgContLanguageCode . ']';
				$feed = new $wgFeedClasses[$feedFormat](
					$feedTitle,
					htmlspecialchars( '' ),
					$wgTitle->getFullUrl() );

                $term = $wgRequest->getText('term','');
                $limit = $wgRequest->getText('limit','50');

				$feed->outHeader();

				$offset = 0;
				$namespaces = array_keys(SearchEngine::searchableNamespaces());
				$popts = new ParserOptions();
				$popts->setEditSection(false);
				$popts->setAllowSpecialInclusion(false);
//				$popts->setInterwikiMagic(true);
				$popts->setAllowExternalImages(true);
				$popts->setTidy(true);

        		$search = SearchEngine::create();
				$search->setLimitOffset( $limit, $offset );
				$search->setNamespaces( $namespaces );
				$search->showRedirects = true; //$this->searchRedirects

				$textMatches = $search->searchText( $term );

				while($result = $textMatches->next()) {
					$title = $result->getTitle();

					$revision = Revision::newFromTitle( $title );
					$wikitext = $revision->getRawText();

					$lines = explode( "\n", $wikitext );

					$contextlines = $wgUser->getOption( 'contextlines',  5 );
					$contextchars = $wgUser->getOption( 'contextchars', 120 );

					$max = intval( $contextchars ) + 1;
					$pat1 = "/(.*)($term)(.{0,$max})/i";

					$lineno = 0;

					$extract = '';
					foreach ( $lines as $line ) {
						if ( 0 == $contextlines ) {
							break;
						}
						++$lineno;
						$m = array();
						if ( ! preg_match( $pat1, $line, $m ) ) {
							continue;
						}
						--$contextlines;
						$pre = $wgContLang->truncate( $m[1], -$contextchars, '...' );

						if ( count( $m ) < 3 ) {
							$post = '';
						} else {
							$post = $wgContLang->truncate( $m[3], $contextchars, '...' );
						}

						$found = $m[2];

						$line = htmlspecialchars( $pre . $found . $post );
//						$pat2 = '/(' . $terms . ")/i";
//						$line = preg_replace( $pat2, "\\1", $line );

						if(!empty($line))
							$extract .= "\n{$line}\n";
					}

//					$lc = SearchEngine::legalSearchChars() . '&#;';
//					$extract = preg_replace( "/[^{$lc}]+/", " ", $extract );
//					$extract = preg_replace( "/''[']*/", " ", $extract );

					$parserOutput = $wgParser->parse( $extract, $title, $popts,
						1, true, $revision->getId());
					$text = $parserOutput->getText();

					$text = strip_tags($text, "<br><p>");
//					$text = preg_replace( "/\<img.*?\>/i" ,' ', $text);
//					$text = preg_replace( "/\<a \>(.*?)\<\/a\>/i" ,"\\1", $text);

					$talkpage = $title->getTalkPage();
					$item = new FeedItem(
						$title->getPrefixedText(),
						$text,
						$title->getFullURL(),
						$revision->getTimestamp(),
						$revision->getRawUserText(),
						$talkpage->getFullURL()
						);
					$feed->outItem( $item );
				}

				$feed->outFooter();

				exit;
        }

        function loadMessages() {
                static $messagesLoaded = false;
                global $wgMessageCache;
                if ( $messagesLoaded ) return;
                $messagesLoaded = true;

                require( dirname( __FILE__ ) . '/SearchFeed.i18n.php' );
                #echo $allMessages; prints>> Array
                foreach ( $allMessages as $lang => $langMessages ) {

                    $wgMessageCache->addMessages( $langMessages,$lang);

                }
                return;
        }
}
?>