403 lines
12 KiB
PHP
403 lines
12 KiB
PHP
<?php
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/**
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* @addtogroup SpecialPage
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*/
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/**
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* Entry point : initialise variables and call subfunctions.
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* @param $par String: becomes "FOO" when called like Special:Allpages/FOO (default NULL)
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* @param $specialPage See the SpecialPage object.
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*/
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function wfSpecialAllpages( $par=NULL, $specialPage ) {
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global $wgRequest, $wgOut, $wgContLang;
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# GET values
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$from = $wgRequest->getVal( 'from' );
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$namespace = $wgRequest->getInt( 'namespace' );
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$namespaces = $wgContLang->getNamespaces();
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$indexPage = new SpecialAllpages();
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$wgOut->setPagetitle( ( $namespace > 0 && in_array( $namespace, array_keys( $namespaces) ) ) ?
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wfMsg( 'allinnamespace', str_replace( '_', ' ', $namespaces[$namespace] ) ) :
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wfMsg( 'allarticles' )
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);
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if ( isset($par) ) {
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$indexPage->showChunk( $namespace, $par, $specialPage->including() );
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} elseif ( isset($from) ) {
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$indexPage->showChunk( $namespace, $from, $specialPage->including() );
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} else {
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$indexPage->showToplevel ( $namespace, $specialPage->including() );
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}
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}
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/**
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* Implements Special:Allpages
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* @addtogroup SpecialPage
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*/
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class SpecialAllpages {
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/**
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* Maximum number of pages to show on single subpage.
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*/
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protected $maxPerPage = 960;
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/**
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* Name of this special page. Used to make title objects that reference back
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* to this page.
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*/
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protected $name = 'Allpages';
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/**
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* Determines, which message describes the input field 'nsfrom'.
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*/
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protected $nsfromMsg = 'allpagesfrom';
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/**
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* HTML for the top form
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* @param integer $namespace A namespace constant (default NS_MAIN).
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* @param string $from Article name we are starting listing at.
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*/
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function namespaceForm ( $namespace = NS_MAIN, $from = '' ) {
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global $wgScript;
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$t = SpecialPage::getTitleFor( $this->name );
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$out = Xml::openElement( 'div', array( 'class' => 'namespaceoptions' ) );
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$out .= Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
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$out .= Xml::hidden( 'title', $t->getPrefixedText() );
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$out .= Xml::openElement( 'fieldset' );
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$out .= Xml::element( 'legend', null, wfMsg( 'allpages' ) );
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$out .= Xml::openElement( 'table', array( 'id' => 'nsselect', 'class' => 'allpages' ) );
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$out .= "<tr>
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<td class='mw-label'>" .
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Xml::label( wfMsg( $this->nsfromMsg ), 'nsfrom' ) .
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"</td>
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<td class='mw-input'>" .
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Xml::input( 'from', 20, $from, array( 'id' => 'nsfrom' ) ) .
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"</td>
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</tr>
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<tr>
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<td class='mw-label'>" .
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Xml::label( wfMsg( 'namespace' ), 'namespace' ) .
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"</td>
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<td class='mw-input'>" .
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Xml::namespaceSelector( $namespace, null ) . ' ' .
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Xml::submitButton( wfMsg( 'allpagessubmit' ) ) .
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"</td>
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</tr>";
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$out .= Xml::closeElement( 'table' );
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$out .= Xml::closeElement( 'fieldset' );
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$out .= Xml::closeElement( 'form' );
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$out .= Xml::closeElement( 'div' );
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return $out;
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}
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/**
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* @param integer $namespace (default NS_MAIN)
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*/
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function showToplevel ( $namespace = NS_MAIN, $including = false ) {
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global $wgOut, $wgContLang;
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$align = $wgContLang->isRtl() ? 'left' : 'right';
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# TODO: Either make this *much* faster or cache the title index points
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# in the querycache table.
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$dbr = wfGetDB( DB_SLAVE );
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$out = "";
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$where = array( 'page_namespace' => $namespace );
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global $wgMemc;
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$key = wfMemcKey( 'allpages', 'ns', $namespace );
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$lines = $wgMemc->get( $key );
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if( !is_array( $lines ) ) {
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$options = array( 'LIMIT' => 1 );
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if ( ! $dbr->implicitOrderby() ) {
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$options['ORDER BY'] = 'page_title';
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}
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$firstTitle = $dbr->selectField( 'page', 'page_title', $where, __METHOD__, $options );
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$lastTitle = $firstTitle;
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# This array is going to hold the page_titles in order.
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$lines = array( $firstTitle );
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# If we are going to show n rows, we need n+1 queries to find the relevant titles.
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$done = false;
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for( $i = 0; !$done; ++$i ) {
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// Fetch the last title of this chunk and the first of the next
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$chunk = is_null( $lastTitle )
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? ''
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: 'page_title >= ' . $dbr->addQuotes( $lastTitle );
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$res = $dbr->select(
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'page', /* FROM */
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'page_title', /* WHAT */
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$where + array($chunk),
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__METHOD__,
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array ('LIMIT' => 2, 'OFFSET' => $this->maxPerPage - 1, 'ORDER BY' => 'page_title') );
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if ( $s = $dbr->fetchObject( $res ) ) {
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array_push( $lines, $s->page_title );
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} else {
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// Final chunk, but ended prematurely. Go back and find the end.
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$endTitle = $dbr->selectField( 'page', 'MAX(page_title)',
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array(
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'page_namespace' => $namespace,
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$chunk
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), __METHOD__ );
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array_push( $lines, $endTitle );
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$done = true;
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}
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if( $s = $dbr->fetchObject( $res ) ) {
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array_push( $lines, $s->page_title );
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$lastTitle = $s->page_title;
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} else {
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// This was a final chunk and ended exactly at the limit.
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// Rare but convenient!
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$done = true;
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}
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$dbr->freeResult( $res );
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}
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$wgMemc->add( $key, $lines, 3600 );
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}
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// If there are only two or less sections, don't even display them.
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// Instead, display the first section directly.
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if( count( $lines ) <= 2 ) {
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$this->showChunk( $namespace, '', $including );
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return;
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}
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# At this point, $lines should contain an even number of elements.
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$out .= "<table class='allpageslist' style='background: inherit;'>";
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while ( count ( $lines ) > 0 ) {
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$inpoint = array_shift ( $lines );
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$outpoint = array_shift ( $lines );
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$out .= $this->showline ( $inpoint, $outpoint, $namespace, false );
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}
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$out .= '</table>';
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$nsForm = $this->namespaceForm( $namespace, '', false );
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# Is there more?
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if ( $including ) {
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$out2 = '';
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} else {
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$morelinks = '';
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if ( $morelinks != '' ) {
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$out2 = '<table style="background: inherit;" width="100%" cellpadding="0" cellspacing="0" border="0">';
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$out2 .= '<tr valign="top"><td>' . $nsForm;
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$out2 .= '</td><td align="' . $align . '" style="font-size: smaller; margin-bottom: 1em;">';
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$out2 .= $morelinks . '</td></tr></table><hr />';
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} else {
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$out2 = $nsForm . '<hr />';
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}
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}
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$wgOut->addHtml( $out2 . $out );
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}
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/**
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* @todo Document
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* @param string $from
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* @param integer $namespace (Default NS_MAIN)
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*/
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function showline( $inpoint, $outpoint, $namespace = NS_MAIN ) {
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global $wgContLang;
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$align = $wgContLang->isRtl() ? 'left' : 'right';
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$inpointf = htmlspecialchars( str_replace( '_', ' ', $inpoint ) );
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$outpointf = htmlspecialchars( str_replace( '_', ' ', $outpoint ) );
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$queryparams = ($namespace ? "namespace=$namespace" : '');
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$special = SpecialPage::getTitleFor( $this->name, $inpoint );
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$link = $special->escapeLocalUrl( $queryparams );
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$out = wfMsgHtml(
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'alphaindexline',
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"<a href=\"$link\">$inpointf</a></td><td><a href=\"$link\">",
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"</a></td><td><a href=\"$link\">$outpointf</a>"
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);
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return '<tr><td align="' . $align . '">'.$out.'</td></tr>';
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}
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/**
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* @param integer $namespace (Default NS_MAIN)
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* @param string $from list all pages from this name (default FALSE)
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*/
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function showChunk( $namespace = NS_MAIN, $from, $including = false ) {
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global $wgOut, $wgUser, $wgContLang;
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$sk = $wgUser->getSkin();
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$fromList = $this->getNamespaceKeyAndText($namespace, $from);
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$namespaces = $wgContLang->getNamespaces();
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$align = $wgContLang->isRtl() ? 'left' : 'right';
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$n = 0;
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if ( !$fromList ) {
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$out = wfMsgWikiHtml( 'allpagesbadtitle' );
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} elseif ( !in_array( $namespace, array_keys( $namespaces ) ) ) {
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// Show errormessage and reset to NS_MAIN
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$out = wfMsgExt( 'allpages-bad-ns', array( 'parseinline' ), $namespace );
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$namespace = NS_MAIN;
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} else {
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list( $namespace, $fromKey, $from ) = $fromList;
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$dbr = wfGetDB( DB_SLAVE );
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$res = $dbr->select( 'page',
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array( 'page_namespace', 'page_title', 'page_is_redirect' ),
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array(
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'page_namespace' => $namespace,
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'page_title >= ' . $dbr->addQuotes( $fromKey )
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),
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__METHOD__,
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array(
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'ORDER BY' => 'page_title',
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'LIMIT' => $this->maxPerPage + 1,
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'USE INDEX' => 'name_title',
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)
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);
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if( $res->numRows() > 0 ) {
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$out = '<table style="background: inherit;" border="0" width="100%">';
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while( ($n < $this->maxPerPage) && ($s = $dbr->fetchObject( $res )) ) {
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$t = Title::makeTitle( $s->page_namespace, $s->page_title );
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if( $t ) {
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$link = ($s->page_is_redirect ? '<div class="allpagesredirect">' : '' ) .
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$sk->makeKnownLinkObj( $t, htmlspecialchars( $t->getText() ), false, false ) .
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($s->page_is_redirect ? '</div>' : '' );
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} else {
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$link = '[[' . htmlspecialchars( $s->page_title ) . ']]';
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}
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if( $n % 3 == 0 ) {
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$out .= '<tr>';
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}
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$out .= "<td width=\"33%\">$link</td>";
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$n++;
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if( $n % 3 == 0 ) {
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$out .= '</tr>';
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}
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}
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if( ($n % 3) != 0 ) {
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$out .= '</tr>';
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}
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$out .= '</table>';
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} else {
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$out = '';
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}
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}
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if ( $including ) {
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$out2 = '';
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} else {
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if( $from == '' ) {
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// First chunk; no previous link.
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$prevTitle = null;
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} else {
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# Get the last title from previous chunk
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$dbr = wfGetDB( DB_SLAVE );
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$res_prev = $dbr->select(
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'page',
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'page_title',
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array( 'page_namespace' => $namespace, 'page_title < '.$dbr->addQuotes($from) ),
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__METHOD__,
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array( 'ORDER BY' => 'page_title DESC', 'LIMIT' => $this->maxPerPage, 'OFFSET' => ($this->maxPerPage - 1 ) )
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);
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# Get first title of previous complete chunk
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if( $dbr->numrows( $res_prev ) >= $this->maxPerPage ) {
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$pt = $dbr->fetchObject( $res_prev );
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$prevTitle = Title::makeTitle( $namespace, $pt->page_title );
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} else {
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# The previous chunk is not complete, need to link to the very first title
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# available in the database
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$options = array( 'LIMIT' => 1 );
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if ( ! $dbr->implicitOrderby() ) {
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$options['ORDER BY'] = 'page_title';
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}
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$reallyFirstPage_title = $dbr->selectField( 'page', 'page_title', array( 'page_namespace' => $namespace ), __METHOD__, $options );
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# Show the previous link if it s not the current requested chunk
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if( $from != $reallyFirstPage_title ) {
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$prevTitle = Title::makeTitle( $namespace, $reallyFirstPage_title );
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} else {
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$prevTitle = null;
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}
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}
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}
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$nsForm = $this->namespaceForm( $namespace, $from );
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$out2 = '<table style="background: inherit;" width="100%" cellpadding="0" cellspacing="0" border="0">';
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$out2 .= '<tr valign="top"><td>' . $nsForm;
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$out2 .= '</td><td align="' . $align . '" style="font-size: smaller; margin-bottom: 1em;">' .
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$sk->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
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wfMsgHtml ( 'allpages' ) );
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$self = SpecialPage::getTitleFor( 'Allpages' );
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# Do we put a previous link ?
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if( isset( $prevTitle ) && $pt = $prevTitle->getText() ) {
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$q = 'from=' . $prevTitle->getPartialUrl()
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. ( $namespace ? '&namespace=' . $namespace : '' );
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$prevLink = $sk->makeKnownLinkObj( $self,
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wfMsgHTML( 'prevpage', htmlspecialchars( $pt ) ), $q );
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$out2 .= ' | ' . $prevLink;
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}
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if( $n == $this->maxPerPage && $s = $dbr->fetchObject($res) ) {
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# $s is the first link of the next chunk
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$t = Title::MakeTitle($namespace, $s->page_title);
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$q = 'from=' . $t->getPartialUrl()
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. ( $namespace ? '&namespace=' . $namespace : '' );
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$nextLink = $sk->makeKnownLinkObj( $self,
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wfMsgHtml( 'nextpage', htmlspecialchars( $t->getText() ) ), $q );
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$out2 .= ' | ' . $nextLink;
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}
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$out2 .= "</td></tr></table><hr />";
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}
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$wgOut->addHtml( $out2 . $out );
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if( isset($prevLink) or isset($nextLink) ) {
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$wgOut->addHtml( '<hr /><p style="font-size: smaller; float: ' . $align . '">' );
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if( isset( $prevLink ) ) {
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$wgOut->addHTML( $prevLink );
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}
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if( isset( $prevLink ) && isset( $nextLink ) ) {
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$wgOut->addHTML( ' | ' );
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}
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if( isset( $nextLink ) ) {
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$wgOut->addHTML( $nextLink );
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}
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$wgOut->addHTML( '</p>' );
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}
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}
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/**
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* @param int $ns the namespace of the article
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* @param string $text the name of the article
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* @return array( int namespace, string dbkey, string pagename ) or NULL on error
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* @static (sort of)
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* @access private
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*/
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function getNamespaceKeyAndText ($ns, $text) {
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if ( $text == '' )
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return array( $ns, '', '' ); # shortcut for common case
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$t = Title::makeTitleSafe($ns, $text);
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if ( $t && $t->isLocal() ) {
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return array( $t->getNamespace(), $t->getDBkey(), $t->getText() );
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} else if ( $t ) {
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return NULL;
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}
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# try again, in case the problem was an empty pagename
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$text = preg_replace('/(#|$)/', 'X$1', $text);
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$t = Title::makeTitleSafe($ns, $text);
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if ( $t && $t->isLocal() ) {
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return array( $t->getNamespace(), '', '' );
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} else {
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return NULL;
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}
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}
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}
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