MediaWiki 1.7.1 wiederhergestellt

1 files changed, 483 insertions, 0 deletions

diff --git a/includes/QueryPage.php b/includes/QueryPage.php
new file mode 100644
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+++ b/includes/QueryPage.php
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+<?php
+/**
+ * Contain a class for special pages
+ * @package MediaWiki
+ */
+
+/**
+ * List of query page classes and their associated special pages, for periodic update purposes
+ */
+global $wgQueryPages; // not redundant
+$wgQueryPages = array(
+//         QueryPage subclass           Special page name         Limit (false for none, none for the default)
+//----------------------------------------------------------------------------
+	array( 'AncientPagesPage',		'Ancientpages'			),
+	array( 'BrokenRedirectsPage',		'BrokenRedirects'		),
+	array( 'CategoriesPage',		'Categories'			),
+	array( 'DeadendPagesPage',		'Deadendpages'			),
+	array( 'DisambiguationsPage',		'Disambiguations'		),
+	array( 'DoubleRedirectsPage',		'DoubleRedirects'		),
+	array( 'ListUsersPage',			'Listusers'			),
+	array( 'ListredirectsPage', 'Listredirects' ),
+	array( 'LonelyPagesPage',		'Lonelypages'			),
+	array( 'LongPagesPage',			'Longpages'			),
+	array( 'MostcategoriesPage',		'Mostcategories'		),
+	array( 'MostimagesPage',		'Mostimages'			),
+	array( 'MostlinkedCategoriesPage',	'Mostlinkedcategories'		),
+	array( 'MostlinkedPage',		'Mostlinked'			),
+	array( 'MostrevisionsPage',		'Mostrevisions'			),
+	array( 'NewPagesPage',			'Newpages'			),
+	array( 'ShortPagesPage',		'Shortpages'			),
+	array( 'UncategorizedCategoriesPage',	'Uncategorizedcategories'	),
+	array( 'UncategorizedPagesPage',	'Uncategorizedpages'		),
+	array( 'UncategorizedImagesPage', 'Uncategorizedimages' ),
+	array( 'UnusedCategoriesPage',		'Unusedcategories'		),
+	array( 'UnusedimagesPage',		'Unusedimages'			),
+	array( 'WantedCategoriesPage',		'Wantedcategories'		),
+	array( 'WantedPagesPage',		'Wantedpages'			),
+	array( 'UnwatchedPagesPage',		'Unwatchedpages'		),
+	array( 'UnusedtemplatesPage', 'Unusedtemplates' ),
+);
+wfRunHooks( 'wgQueryPages', array( &$wgQueryPages ) );
+
+global $wgDisableCounters;
+if ( !$wgDisableCounters )
+	$wgQueryPages[] = array( 'PopularPagesPage',		'Popularpages'		);
+
+
+/**
+ * This is a class for doing query pages; since they're almost all the same,
+ * we factor out some of the functionality into a superclass, and let
+ * subclasses derive from it.
+ *
+ * @package MediaWiki
+ */
+class QueryPage {
+	/**
+	 * Whether or not we want plain listoutput rather than an ordered list
+	 *
+	 * @var bool
+	 */
+	var $listoutput = false;
+	
+	/**
+	 * The offset and limit in use, as passed to the query() function
+	 *
+	 * @var integer
+	 */
+	var $offset = 0;
+	var $limit = 0;
+
+	/**
+	 * A mutator for $this->listoutput;
+	 *
+	 * @param bool $bool
+	 */
+	function setListoutput( $bool ) {
+		$this->listoutput = $bool;
+	}
+
+	/**
+	 * Subclasses return their name here. Make sure the name is also
+	 * specified in SpecialPage.php and in Language.php as a language message
+	 * param.
+	 */
+	function getName() {
+		return '';
+	}
+
+	/**
+	 * Return title object representing this page
+	 *
+	 * @return Title
+	 */
+	function getTitle() {
+		return Title::makeTitle( NS_SPECIAL, $this->getName() );
+	}
+
+	/**
+	 * Subclasses return an SQL query here.
+	 *
+	 * Note that the query itself should return the following four columns:
+	 * 'type' (your special page's name), 'namespace', 'title', and 'value'
+	 * *in that order*. 'value' is used for sorting.
+	 *
+	 * These may be stored in the querycache table for expensive queries,
+	 * and that cached data will be returned sometimes, so the presence of
+	 * extra fields can't be relied upon. The cached 'value' column will be
+	 * an integer; non-numeric values are useful only for sorting the initial
+	 * query.
+	 *
+	 * Don't include an ORDER or LIMIT clause, this will be added.
+	 */
+	function getSQL() {
+		return "SELECT 'sample' as type, 0 as namespace, 'Sample result' as title, 42 as value";
+	}
+
+	/**
+	 * Override to sort by increasing values
+	 */
+	function sortDescending() {
+		return true;
+	}
+
+	function getOrder() {
+		return ' ORDER BY value ' .
+			($this->sortDescending() ? 'DESC' : '');
+	}
+
+	/**
+	 * Is this query expensive (for some definition of expensive)? Then we
+	 * don't let it run in miser mode. $wgDisableQueryPages causes all query
+	 * pages to be declared expensive. Some query pages are always expensive.
+	 */
+	function isExpensive( ) {
+		global $wgDisableQueryPages;
+		return $wgDisableQueryPages;
+	}
+
+	/**
+	 * Whether or not the output of the page in question is retrived from
+	 * the database cache.
+	 *
+	 * @return bool
+	 */
+	function isCached() {
+		global $wgMiserMode;
+
+		return $this->isExpensive() && $wgMiserMode;
+	}
+
+	/**
+	 * Sometime we dont want to build rss / atom feeds.
+	 */
+	function isSyndicated() {
+		return true;
+	}
+
+	/**
+	 * Formats the results of the query for display. The skin is the current
+	 * skin; you can use it for making links. The result is a single row of
+	 * result data. You should be able to grab SQL results off of it.
+	 * If the function return "false", the line output will be skipped.
+	 */
+	function formatResult( $skin, $result ) {
+		return '';
+	}
+
+	/**
+	 * The content returned by this function will be output before any result
+	 */
+	function getPageHeader( ) {
+		return '';
+	}
+
+	/**
+	 * If using extra form wheely-dealies, return a set of parameters here
+	 * as an associative array. They will be encoded and added to the paging
+	 * links (prev/next/lengths).
+	 * @return array
+	 */
+	function linkParameters() {
+		return array();
+	}
+
+	/**
+	 * Some special pages (for example SpecialListusers) might not return the
+	 * current object formatted, but return the previous one instead.
+	 * Setting this to return true, will call one more time wfFormatResult to
+	 * be sure that the very last result is formatted and shown.
+	 */
+	function tryLastResult( ) {
+		return false;
+	}
+
+	/**
+	 * Clear the cache and save new results
+	 */
+	function recache( $limit, $ignoreErrors = true ) {
+		$fname = get_class($this) . '::recache';
+		$dbw =& wfGetDB( DB_MASTER );
+		$dbr =& wfGetDB( DB_SLAVE, array( $this->getName(), 'QueryPage::recache', 'vslow' ) );
+		if ( !$dbw || !$dbr ) {
+			return false;
+		}
+
+		$querycache = $dbr->tableName( 'querycache' );
+
+		if ( $ignoreErrors ) {
+			$ignoreW = $dbw->ignoreErrors( true );
+			$ignoreR = $dbr->ignoreErrors( true );
+		}
+
+		# Clear out any old cached data
+		$dbw->delete( 'querycache', array( 'qc_type' => $this->getName() ), $fname );
+		# Do query
+		$sql = $this->getSQL() . $this->getOrder();
+		if ($limit !== false)
+			$sql = $dbr->limitResult($sql, $limit, 0);
+		$res = $dbr->query($sql, $fname);
+		$num = false;
+		if ( $res ) {
+			$num = $dbr->numRows( $res );
+			# Fetch results
+			$insertSql = "INSERT INTO $querycache (qc_type,qc_namespace,qc_title,qc_value) VALUES ";
+			$first = true;
+			while ( $res && $row = $dbr->fetchObject( $res ) ) {
+				if ( $first ) {
+					$first = false;
+				} else {
+					$insertSql .= ',';
+				}
+				if ( isset( $row->value ) ) {
+					$value = $row->value;
+				} else {
+					$value = '';
+				}
+
+				$insertSql .= '(' .
+					$dbw->addQuotes( $row->type ) . ',' .
+					$dbw->addQuotes( $row->namespace ) . ',' .
+					$dbw->addQuotes( $row->title ) . ',' .
+					$dbw->addQuotes( $value ) . ')';
+			}
+
+			# Save results into the querycache table on the master
+			if ( !$first ) {
+				if ( !$dbw->query( $insertSql, $fname ) ) {
+					// Set result to false to indicate error
+					$dbr->freeResult( $res );
+					$res = false;
+				}
+			}
+			if ( $res ) {
+				$dbr->freeResult( $res );
+			}
+			if ( $ignoreErrors ) {
+				$dbw->ignoreErrors( $ignoreW );
+				$dbr->ignoreErrors( $ignoreR );
+			}
+
+			# Update the querycache_info record for the page
+			$dbw->delete( 'querycache_info', array( 'qci_type' => $this->getName() ), $fname );
+			$dbw->insert( 'querycache_info', array( 'qci_type' => $this->getName(), 'qci_timestamp' => $dbw->timestamp() ), $fname );
+
+		}
+		return $num;
+	}
+
+	/**
+	 * This is the actual workhorse. It does everything needed to make a
+	 * real, honest-to-gosh query page.
+	 *
+	 * @param $offset database query offset
+	 * @param $limit database query limit
+	 * @param $shownavigation show navigation like "next 200"?
+	 */
+	function doQuery( $offset, $limit, $shownavigation=true ) {
+		global $wgUser, $wgOut, $wgLang, $wgContLang;
+
+		$this->offset = $offset;
+		$this->limit = $limit;
+
+		$sname = $this->getName();
+		$fname = get_class($this) . '::doQuery';
+		$sql = $this->getSQL();
+		$dbr =& wfGetDB( DB_SLAVE );
+		$querycache = $dbr->tableName( 'querycache' );
+
+		$wgOut->setSyndicated( $this->isSyndicated() );
+
+		if ( $this->isCached() ) {
+			$type = $dbr->strencode( $sname );
+			$sql =
+				"SELECT qc_type as type, qc_namespace as namespace,qc_title as title, qc_value as value
+				 FROM $querycache WHERE qc_type='$type'";
+
+			if( !$this->listoutput ) {
+
+				# Fetch the timestamp of this update
+				$tRes = $dbr->select( 'querycache_info', array( 'qci_timestamp' ), array( 'qci_type' => $type ), $fname );
+				$tRow = $dbr->fetchObject( $tRes );
+				
+				if( $tRow ) {
+					$updated = $wgLang->timeAndDate( $tRow->qci_timestamp, true, true );
+					$cacheNotice = wfMsg( 'perfcachedts', $updated );
+					$wgOut->addMeta( 'Data-Cache-Time', $tRow->qci_timestamp );
+					$wgOut->addScript( '<script language="JavaScript">var dataCacheTime = \'' . $tRow->qci_timestamp . '\';</script>' );
+				} else {
+					$cacheNotice = wfMsg( 'perfcached' );
+				}
+	
+				$wgOut->addWikiText( $cacheNotice );
+			}
+
+		}
+
+		$sql .= $this->getOrder();
+		$sql = $dbr->limitResult($sql, $limit, $offset);
+		$res = $dbr->query( $sql );
+		$num = $dbr->numRows($res);
+
+		$this->preprocessResults( $dbr, $res );
+
+		$sk = $wgUser->getSkin( );
+
+		if($shownavigation) {
+			$wgOut->addHTML( $this->getPageHeader() );
+			$top = wfShowingResults( $offset, $num);
+			$wgOut->addHTML( "<p>{$top}\n" );
+
+			# often disable 'next' link when we reach the end
+			$atend = $num < $limit;
+
+			$sl = wfViewPrevNext( $offset, $limit ,
+				$wgContLang->specialPage( $sname ),
+				wfArrayToCGI( $this->linkParameters() ), $atend );
+			$wgOut->addHTML( "<br />{$sl}</p>\n" );
+		}
+		if ( $num > 0 ) {
+			$s = array();
+			if ( ! $this->listoutput )
+				$s[] = "<ol start='" . ( $offset + 1 ) . "' class='special'>";
+
+			# Only read at most $num rows, because $res may contain the whole 1000
+			for ( $i = 0; $i < $num && $obj = $dbr->fetchObject( $res ); $i++ ) {
+				$format = $this->formatResult( $sk, $obj );
+				if ( $format ) {
+					$attr = ( isset ( $obj->usepatrol ) && $obj->usepatrol &&
+										$obj->patrolled == 0 ) ? ' class="not-patrolled"' : '';
+					$s[] = $this->listoutput ? $format : "<li{$attr}>{$format}</li>\n";
+				}
+			}
+
+			if($this->tryLastResult()) {
+				// flush the very last result
+				$obj = null;
+				$format = $this->formatResult( $sk, $obj );
+				if( $format ) {
+					$attr = ( isset ( $obj->usepatrol ) && $obj->usepatrol &&
+										$obj->patrolled == 0 ) ? ' class="not-patrolled"' : '';
+					$s[] = "<li{$attr}>{$format}</li>\n";
+				}
+			}
+
+			$dbr->freeResult( $res );
+			if ( ! $this->listoutput )
+				$s[] = '</ol>';
+			$str = $this->listoutput ? $wgContLang->listToText( $s ) : implode( '', $s );
+			$wgOut->addHTML( $str );
+		}
+		if($shownavigation) {
+			$wgOut->addHTML( "<p>{$sl}</p>\n" );
+		}
+		return $num;
+	}
+
+	/**
+	 * Do any necessary preprocessing of the result object.
+	 * You should pass this by reference: &$db , &$res
+	 */
+	function preprocessResults( $db, $res ) {}
+
+	/**
+	 * Similar to above, but packaging in a syndicated feed instead of a web page
+	 */
+	function doFeed( $class = '', $limit = 50 ) {
+		global $wgFeedClasses;
+
+		if( isset($wgFeedClasses[$class]) ) {
+			$feed = new $wgFeedClasses[$class](
+				$this->feedTitle(),
+				$this->feedDesc(),
+				$this->feedUrl() );
+			$feed->outHeader();
+
+			$dbr =& wfGetDB( DB_SLAVE );
+			$sql = $this->getSQL() . $this->getOrder();
+			$sql = $dbr->limitResult( $sql, $limit, 0 );
+			$res = $dbr->query( $sql, 'QueryPage::doFeed' );
+			while( $obj = $dbr->fetchObject( $res ) ) {
+				$item = $this->feedResult( $obj );
+				if( $item ) $feed->outItem( $item );
+			}
+			$dbr->freeResult( $res );
+
+			$feed->outFooter();
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	 * Override for custom handling. If the titles/links are ok, just do
+	 * feedItemDesc()
+	 */
+	function feedResult( $row ) {
+		if( !isset( $row->title ) ) {
+			return NULL;
+		}
+		$title = Title::MakeTitle( intval( $row->namespace ), $row->title );
+		if( $title ) {
+			$date = isset( $row->timestamp ) ? $row->timestamp : '';
+			$comments = '';
+			if( $title ) {
+				$talkpage = $title->getTalkPage();
+				$comments = $talkpage->getFullURL();
+			}
+
+			return new FeedItem(
+				$title->getPrefixedText(),
+				$this->feedItemDesc( $row ),
+				$title->getFullURL(),
+				$date,
+				$this->feedItemAuthor( $row ),
+				$comments);
+		} else {
+			return NULL;
+		}
+	}
+
+	function feedItemDesc( $row ) {
+		return isset( $row->comment ) ? htmlspecialchars( $row->comment ) : '';
+	}
+
+	function feedItemAuthor( $row ) {
+		return isset( $row->user_text ) ? $row->user_text : '';
+	}
+
+	function feedTitle() {
+		global $wgLanguageCode, $wgSitename;
+		$page = SpecialPage::getPage( $this->getName() );
+		$desc = $page->getDescription();
+		return "$wgSitename - $desc [$wgLanguageCode]";
+	}
+
+	function feedDesc() {
+		return wfMsg( 'tagline' );
+	}
+
+	function feedUrl() {
+		$title = Title::MakeTitle( NS_SPECIAL, $this->getName() );
+		return $title->getFullURL();
+	}
+}
+
+/**
+ * This is a subclass for very simple queries that are just looking for page
+ * titles that match some criteria. It formats each result item as a link to
+ * that page.
+ *
+ * @package MediaWiki
+ */
+class PageQueryPage extends QueryPage {
+
+	function formatResult( $skin, $result ) {
+		global $wgContLang;
+		$nt = Title::makeTitle( $result->namespace, $result->title );
+		return $skin->makeKnownLinkObj( $nt, htmlspecialchars( $wgContLang->convert( $nt->getPrefixedText() ) ) );
+	}
+}
+
+?>