<?php
/**
+ * @todo Use some variant of Pager or something; the pagination here is lousy.
*
+ * @file
+ * @ingroup SpecialPage
*/
/**
- *
+ * Entry point
+ * @param $par String: An article name ??
*/
function wfSpecialWhatlinkshere($par = NULL) {
- global $wgUser, $wgOut, $wgRequest;
- $fname = "wfSpecialWhatlinkshere";
-
- $target = $wgRequest->getVal( 'target' );
- $limit = $wgRequest->getInt( 'limit', 500 );
-
- if(!empty($par)) {
- $target = $par;
- } else if ( is_null( $target ) ) {
- $wgOut->errorpage( "notargettitle", "notargettext" );
- return;
+ global $wgRequest;
+ $page = new WhatLinksHerePage( $wgRequest, $par );
+ $page->execute();
+}
+
+/**
+ * implements Special:Whatlinkshere
+ * @ingroup SpecialPage
+ */
+class WhatLinksHerePage {
+ // Stored data
+ protected $par;
+
+ // Stored objects
+ protected $opts, $target, $selfTitle;
+
+ // Stored globals
+ protected $skin, $request;
+
+ protected $limits = array( 20, 50, 100, 250, 500 );
+
+ function WhatLinksHerePage( $request, $par = null ) {
+ global $wgUser;
+ $this->request = $request;
+ $this->skin = $wgUser->getSkin();
+ $this->par = $par;
}
- $nt = Title::newFromURL( $target );
- if( !$nt ) {
- $wgOut->errorpage( "notargettitle", "notargettext" );
- return;
+ function execute() {
+ global $wgOut;
+
+ $opts = new FormOptions();
+
+ $opts->add( 'target', '' );
+ $opts->add( 'namespace', '', FormOptions::INTNULL );
+ $opts->add( 'limit', 50 );
+ $opts->add( 'from', 0 );
+ $opts->add( 'back', 0 );
+ $opts->add( 'hideredirs', false );
+ $opts->add( 'hidetrans', false );
+ $opts->add( 'hidelinks', false );
+ $opts->add( 'hideimages', false );
+
+ $opts->fetchValuesFromRequest( $this->request );
+ $opts->validateIntBounds( 'limit', 0, 5000 );
+
+ // Give precedence to subpage syntax
+ if ( isset($this->par) ) {
+ $opts->setValue( 'target', $this->par );
+ }
+
+ // Bind to member variable
+ $this->opts = $opts;
+
+ $this->target = Title::newFromURL( $opts->getValue( 'target' ) );
+ if( !$this->target ) {
+ $wgOut->addHTML( $this->whatlinkshereForm() );
+ return;
+ }
+
+ $this->selfTitle = SpecialPage::getTitleFor( 'Whatlinkshere', $this->target->getPrefixedDBkey() );
+
+ $wgOut->setPageTitle( wfMsgExt( 'whatlinkshere-title', 'escape', $this->target->getPrefixedText() ) );
+ $wgOut->setSubtitle( wfMsgHtml( 'linklistsub' ) );
+
+ $wgOut->addHTML( wfMsgExt( 'whatlinkshere-barrow', array( 'escapenoentities') ) . ' ' .$this->skin->makeLinkObj($this->target, '', 'redirect=no' )."<br />\n");
+
+ $this->showIndirectLinks( 0, $this->target, $opts->getValue( 'limit' ),
+ $opts->getValue( 'from' ), $opts->getValue( 'back' ) );
}
- $wgOut->setPagetitle( $nt->getPrefixedText() );
- $wgOut->setSubtitle( wfMsg( "linklistsub" ) );
- $id = $nt->getArticleID();
- $sk = $wgUser->getSkin();
- $isredir = " (" . wfMsg( "isredirect" ) . ")\n";
+ /**
+ * @param $level int Recursion level
+ * @param $target Title Target title
+ * @param $limit int Number of entries to display
+ * @param $from Title Display from this article ID
+ * @param $back Title Display from this article ID at backwards scrolling
+ * @private
+ */
+ function showIndirectLinks( $level, $target, $limit, $from = 0, $back = 0 ) {
+ global $wgOut, $wgMaxRedirectLinksRetrieved;
+ $dbr = wfGetDB( DB_SLAVE );
+ $options = array();
+
+ $hidelinks = $this->opts->getValue( 'hidelinks' );
+ $hideredirs = $this->opts->getValue( 'hideredirs' );
+ $hidetrans = $this->opts->getValue( 'hidetrans' );
+ $hideimages = $target->getNamespace() != NS_IMAGE || $this->opts->getValue( 'hideimages' );
+
+ $fetchlinks = (!$hidelinks || !$hideredirs);
+
+ // Make the query
+ $plConds = array(
+ 'page_id=pl_from',
+ 'pl_namespace' => $target->getNamespace(),
+ 'pl_title' => $target->getDBkey(),
+ );
+ if( $hideredirs ) {
+ $plConds['page_is_redirect'] = 0;
+ } elseif( $hidelinks ) {
+ $plConds['page_is_redirect'] = 1;
+ }
+
+ $tlConds = array(
+ 'page_id=tl_from',
+ 'tl_namespace' => $target->getNamespace(),
+ 'tl_title' => $target->getDBkey(),
+ );
+
+ $ilConds = array(
+ 'page_id=il_from',
+ 'il_to' => $target->getDBkey(),
+ );
+
+ $namespace = $this->opts->getValue( 'namespace' );
+ if ( is_int($namespace) ) {
+ $plConds['page_namespace'] = $namespace;
+ $tlConds['page_namespace'] = $namespace;
+ $ilConds['page_namespace'] = $namespace;
+ }
+
+ if ( $from ) {
+ $tlConds[] = "tl_from >= $from";
+ $plConds[] = "pl_from >= $from";
+ $ilConds[] = "il_from >= $from";
+ }
+
+ // Read an extra row as an at-end check
+ $queryLimit = $limit + 1;
+
+ // Enforce join order, sometimes namespace selector may
+ // trigger filesorts which are far less efficient than scanning many entries
+ $options[] = 'STRAIGHT_JOIN';
+
+ $options['LIMIT'] = $queryLimit;
+ $fields = array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' );
+
+ if( $fetchlinks ) {
+ $options['ORDER BY'] = 'pl_from';
+ $plRes = $dbr->select( array( 'pagelinks', 'page' ), $fields,
+ $plConds, __METHOD__, $options );
+ }
+
+ if( !$hidetrans ) {
+ $options['ORDER BY'] = 'tl_from';
+ $tlRes = $dbr->select( array( 'templatelinks', 'page' ), $fields,
+ $tlConds, __METHOD__, $options );
+ }
- $wgOut->addHTML("< ".$sk->makeKnownLinkObj($nt, "", "redirect=no" )."<br />\n");
- $dbr =& wfGetDB( DB_SLAVE );
- extract( $dbr->tableNames( 'cur', 'brokenlinks', 'links' ) );
+ if( !$hideimages ) {
+ $options['ORDER BY'] = 'il_from';
+ $ilRes = $dbr->select( array( 'imagelinks', 'page' ), $fields,
+ $ilConds, __METHOD__, $options );
+ }
+
+ if( ( !$fetchlinks || !$dbr->numRows($plRes) ) && ( $hidetrans || !$dbr->numRows($tlRes) ) && ( $hideimages || !$dbr->numRows($ilRes) ) ) {
+ if ( 0 == $level ) {
+ $wgOut->addHTML( $this->whatlinkshereForm() );
+ $errMsg = is_int($namespace) ? 'nolinkshere-ns' : 'nolinkshere';
+ $wgOut->addWikiMsg( $errMsg, $this->target->getPrefixedText() );
+ // Show filters only if there are links
+ if( $hidelinks || $hidetrans || $hideredirs || $hideimages )
+ $wgOut->addHTML( $this->getFilterPanel() );
+ }
+ return;
+ }
+
+ // Read the rows into an array and remove duplicates
+ // templatelinks comes second so that the templatelinks row overwrites the
+ // pagelinks row, so we get (inclusion) rather than nothing
+ if( $fetchlinks ) {
+ while ( $row = $dbr->fetchObject( $plRes ) ) {
+ $row->is_template = 0;
+ $row->is_image = 0;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $plRes );
+
+ }
+ if( !$hidetrans ) {
+ while ( $row = $dbr->fetchObject( $tlRes ) ) {
+ $row->is_template = 1;
+ $row->is_image = 0;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $tlRes );
+ }
+ if( !$hideimages ) {
+ while ( $row = $dbr->fetchObject( $ilRes ) ) {
+ $row->is_template = 0;
+ $row->is_image = 1;
+ $rows[$row->page_id] = $row;
+ }
+ $dbr->freeResult( $ilRes );
+ }
- if ( 0 == $id ) {
- $sql = "SELECT cur_id,cur_namespace,cur_title,cur_is_redirect FROM $brokenlinks,$cur WHERE bl_to='" .
- $dbr->strencode( $nt->getPrefixedDBkey() ) . "' AND bl_from=cur_id LIMIT $limit";
- $res = $dbr->query( $sql, $fname );
+ // Sort by key and then change the keys to 0-based indices
+ ksort( $rows );
+ $rows = array_values( $rows );
- if ( 0 == $dbr->numRows( $res ) ) {
- $wgOut->addHTML( wfMsg( "nolinkshere" ) );
+ $numRows = count( $rows );
+
+ // Work out the start and end IDs, for prev/next links
+ if ( $numRows > $limit ) {
+ // More rows available after these ones
+ // Get the ID from the last row in the result set
+ $nextId = $rows[$limit]->page_id;
+ // Remove undisplayed rows
+ $rows = array_slice( $rows, 0, $limit );
} else {
- $wgOut->addHTML( wfMsg( "linkshere" ) );
- $wgOut->addHTML( "\n<ul>" );
-
- while ( $row = $dbr->fetchObject( $res ) ) {
- $nt = Title::makeTitle( $row->cur_namespace, $row->cur_title );
- if( !$nt ) {
- continue;
- }
- $link = $sk->makeKnownLinkObj( $nt, "", "redirect=no" );
- $wgOut->addHTML( "<li>{$link}" );
-
- if ( $row->cur_is_redirect ) {
- $wgOut->addHTML( $isredir );
- wfShowIndirectLinks( 1, $row->cur_id, $limit );
- }
- $wgOut->addHTML( "</li>\n" );
+ // No more rows after
+ $nextId = false;
+ }
+ $prevId = $from;
+
+ if ( $level == 0 ) {
+ $wgOut->addHTML( $this->whatlinkshereForm() );
+ $wgOut->addHTML( $this->getFilterPanel() );
+ $wgOut->addWikiMsg( 'linkshere', $this->target->getPrefixedText() );
+
+ $prevnext = $this->getPrevNext( $prevId, $nextId );
+ $wgOut->addHTML( $prevnext );
+ }
+
+ $wgOut->addHTML( $this->listStart() );
+ foreach ( $rows as $row ) {
+ $nt = Title::makeTitle( $row->page_namespace, $row->page_title );
+
+ if ( $row->page_is_redirect && $level < 2 ) {
+ $wgOut->addHTML( $this->listItem( $row, $nt, true ) );
+ $this->showIndirectLinks( $level + 1, $nt, $wgMaxRedirectLinksRetrieved );
+ $wgOut->addHTML( Xml::closeElement( 'li' ) );
+ } else {
+ $wgOut->addHTML( $this->listItem( $row, $nt ) );
}
- $wgOut->addHTML( "</ul>\n" );
- $dbr->freeResult( $res );
}
- } else {
- wfShowIndirectLinks( 0, $id, $limit );
+
+ $wgOut->addHTML( $this->listEnd() );
+
+ if( $level == 0 ) {
+ $wgOut->addHTML( $prevnext );
+ }
}
-}
-/**
- *
- */
-function wfShowIndirectLinks( $level, $lid, $limit ) {
- global $wgOut, $wgUser;
- $fname = "wfShowIndirectLinks";
+ protected function listStart() {
+ return Xml::openElement( 'ul' );
+ }
+
+ protected function listItem( $row, $nt, $notClose = false ) {
+ # local message cache
+ static $msgcache = null;
+ if ( $msgcache === null ) {
+ static $msgs = array( 'isredirect', 'istemplate', 'semicolon-separator',
+ 'whatlinkshere-links', 'isimage' );
+ $msgcache = array();
+ foreach ( $msgs as $msg ) {
+ $msgcache[$msg] = wfMsgHtml( $msg );
+ }
+ }
- $dbr =& wfGetDB( DB_READ );
- extract( $dbr->tableNames( 'links','cur' ) );
+ $suppressRedirect = $row->page_is_redirect ? 'redirect=no' : '';
+ $link = $this->skin->makeKnownLinkObj( $nt, '', $suppressRedirect );
- $sql = "SELECT cur_id,cur_namespace,cur_title,cur_is_redirect FROM $links,$cur WHERE l_to={$lid} AND l_from=cur_id LIMIT $limit";
- $res = $dbr->query( $sql, $fname );
+ // Display properties (redirect or template)
+ $propsText = '';
+ $props = array();
+ if ( $row->page_is_redirect )
+ $props[] = $msgcache['isredirect'];
+ if ( $row->is_template )
+ $props[] = $msgcache['istemplate'];
+ if( $row->is_image )
+ $props[] = $msgcache['isimage'];
- if ( 0 == $dbr->numRows( $res ) ) {
- if ( 0 == $level ) {
- $wgOut->addHTML( wfMsg( "nolinkshere" ) );
+ if ( count( $props ) ) {
+ $propsText = '(' . implode( $msgcache['semicolon-separator'], $props ) . ')';
}
- return;
+
+ # Space for utilities links, with a what-links-here link provided
+ $wlhLink = $this->wlhLink( $nt, $msgcache['whatlinkshere-links'] );
+ $wlh = Xml::wrapClass( "($wlhLink)", 'mw-whatlinkshere-tools' );
+
+ return $notClose ?
+ Xml::openElement( 'li' ) . "$link $propsText $wlh\n" :
+ Xml::tags( 'li', null, "$link $propsText $wlh" ) . "\n";
+ }
+
+ protected function listEnd() {
+ return Xml::closeElement( 'ul' );
}
- if ( 0 == $level ) {
- $wgOut->addHTML( wfMsg( "linkshere" ) );
+
+ protected function wlhLink( Title $target, $text ) {
+ static $title = null;
+ if ( $title === null )
+ $title = SpecialPage::getTitleFor( 'Whatlinkshere' );
+
+ $targetText = $target->getPrefixedUrl();
+ return $this->skin->makeKnownLinkObj( $title, $text, 'target=' . $targetText );
}
- $sk = $wgUser->getSkin();
- $isredir = " (" . wfMsg( "isredirect" ) . ")\n";
- $wgOut->addHTML( "<ul>" );
- while ( $row = $dbr->fetchObject( $res ) ) {
- $nt = Title::makeTitle( $row->cur_namespace, $row->cur_title );
- if( !$nt ) {
- $wgOut->addHTML( "<!-- bad backlink: " . htmlspecialchars( $row->l_from ) . " -->\n" );
- continue;
+ function makeSelfLink( $text, $query ) {
+ return $this->skin->makeKnownLinkObj( $this->selfTitle, $text, $query );
+ }
+
+ function getPrevNext( $prevId, $nextId ) {
+ global $wgLang;
+ $currentLimit = $this->opts->getValue( 'limit' );
+ $fmtLimit = $wgLang->formatNum( $currentLimit );
+ $prev = wfMsgExt( 'whatlinkshere-prev', array( 'parsemag', 'escape' ), $fmtLimit );
+ $next = wfMsgExt( 'whatlinkshere-next', array( 'parsemag', 'escape' ), $fmtLimit );
+
+ $changed = $this->opts->getChangedValues();
+ unset($changed['target']); // Already in the request title
+
+ if ( 0 != $prevId ) {
+ $overrides = array( 'from' => $this->opts->getValue( 'back' ) );
+ $prev = $this->makeSelfLink( $prev, wfArrayToCGI( $overrides, $changed ) );
+ }
+ if ( 0 != $nextId ) {
+ $overrides = array( 'from' => $nextId, 'back' => $prevId );
+ $next = $this->makeSelfLink( $next, wfArrayToCGI( $overrides, $changed ) );
}
- if ( $row->cur_is_redirect ) {
- $extra = "redirect=no";
- } else {
- $extra = "";
+ $limitLinks = array();
+ foreach ( $this->limits as $limit ) {
+ $prettyLimit = $wgLang->formatNum( $limit );
+ $overrides = array( 'limit' => $limit );
+ $limitLinks[] = $this->makeSelfLink( $prettyLimit, wfArrayToCGI( $overrides, $changed ) );
}
- $link = $sk->makeKnownLinkObj( $nt, "", $extra );
- $wgOut->addHTML( "<li>{$link}" );
+ $nums = implode ( ' | ', $limitLinks );
- if ( $row->cur_is_redirect ) {
- $wgOut->addHTML( $isredir );
- if ( $level < 2 ) {
- wfShowIndirectLinks( $level + 1, $row->cur_id, $limit );
- }
+ return wfMsgHtml( 'viewprevnext', $prev, $next, $nums );
+ }
+
+ function whatlinkshereForm() {
+ global $wgScript, $wgTitle;
+
+ // We get nicer value from the title object
+ $this->opts->consumeValue( 'target' );
+ // Reset these for new requests
+ $this->opts->consumeValues( array( 'back', 'from' ) );
+
+ $target = $this->target ? $this->target->getPrefixedText() : '';
+ $namespace = $this->opts->consumeValue( 'namespace' );
+
+ # Build up the form
+ $f = Xml::openElement( 'form', array( 'action' => $wgScript ) );
+
+ # Values that should not be forgotten
+ $f .= Xml::hidden( 'title', $wgTitle->getPrefixedText() );
+ foreach ( $this->opts->getUnconsumedValues() as $name => $value ) {
+ $f .= Xml::hidden( $name, $value );
+ }
+
+ $f .= Xml::fieldset( wfMsg( 'whatlinkshere' ) );
+
+ # Target input
+ $f .= Xml::inputLabel( wfMsg( 'whatlinkshere-page' ), 'target',
+ 'mw-whatlinkshere-target', 40, $target );
+
+ $f .= ' ';
+
+ # Namespace selector
+ $f .= Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
+ Xml::namespaceSelector( $namespace, '' );
+
+ # Submit
+ $f .= Xml::submitButton( wfMsg( 'allpagessubmit' ) );
+
+ # Close
+ $f .= Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' ) . "\n";
+
+ return $f;
+ }
+
+ function getFilterPanel() {
+ $show = wfMsgHtml( 'show' );
+ $hide = wfMsgHtml( 'hide' );
+
+ $changed = $this->opts->getChangedValues();
+ unset($changed['target']); // Already in the request title
+
+ $links = array();
+ $types = array( 'hidetrans', 'hidelinks', 'hideredirs' );
+ if( $this->target->getNamespace() == NS_IMAGE )
+ $types[] = 'hideimages';
+ foreach( $types as $type ) {
+ $chosen = $this->opts->getValue( $type );
+ $msg = wfMsgHtml( "whatlinkshere-{$type}", $chosen ? $show : $hide );
+ $overrides = array( $type => !$chosen );
+ $links[] = $this->makeSelfLink( $msg, wfArrayToCGI( $overrides, $changed ) );
}
- $wgOut->addHTML( "</li>\n" );
+ return Xml::fieldset( wfMsg( 'whatlinkshere-filters' ), implode( ' | ', $links ) );
}
- $wgOut->addHTML( "</ul>\n" );
}
-
-?>
dépôts / lhc / web / wiklou.git / blobdiff