Made DifferenceEngine use a context instead of global variables and updaters calls...
[lhc/web/wiklou.git] / includes / api / ApiParse.php
index 5c5ff56..b1e344c 100644 (file)
@@ -1,7 +1,5 @@
 <?php
 /**
- *
- *
  * Created on Dec 01, 2007
  *
  * Copyright © 2007 Yuri Astrakhan <Firstname><Lastname>@gmail.com
@@ -33,8 +31,7 @@ if ( !defined( 'MEDIAWIKI' ) ) {
  * @ingroup API
  */
 class ApiParse extends ApiBase {
-
-       private $section;
+       private $section, $text, $pstText = null;
 
        public function __construct( $main, $action ) {
                parent::__construct( $main, $action );
@@ -65,7 +62,8 @@ class ApiParse extends ApiBase {
 
                // The parser needs $wgTitle to be set, apparently the
                // $title parameter in Parser::parse isn't enough *sigh*
-               global $wgParser, $wgUser, $wgTitle, $wgLang;
+               // TODO: Does this still need $wgTitle?
+               global $wgParser, $wgTitle, $wgLang;
 
                // Currently unnecessary, code to act as a safeguard against any change in current behaviour of uselang breaks
                $oldLang = null;
@@ -80,8 +78,10 @@ class ApiParse extends ApiBase {
 
                $redirValues = null;
 
-               if ( !is_null( $oldid ) || !is_null( $pageid ) || !is_null( $page ) ) {
+               // Return result
+               $result = $this->getResult();
 
+               if ( !is_null( $oldid ) || !is_null( $pageid ) || !is_null( $page ) ) {
                        if ( !is_null( $oldid ) ) {
                                // Don't use the parser cache
                                $rev = Revision::newFromID( $oldid );
@@ -100,52 +100,61 @@ class ApiParse extends ApiBase {
                                if ( $titleObj->getLatestRevID() === intval( $oldid ) )  {
                                        $articleObj = new Article( $titleObj, 0 );
 
-                                       $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid ) ;
-
+                                       // May get from/save to parser cache
+                                       $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid,
+                                                isset( $prop['wikitext'] ) ) ;
                                } else { // This is an old revision, so get the text differently
-                                       $text = $rev->getText( Revision::FOR_THIS_USER );
+                                       $this->text = $rev->getText( Revision::FOR_THIS_USER );
 
                                        $wgTitle = $titleObj;
 
                                        if ( $this->section !== false ) {
-                                               $text = $this->getSectionText( $text, 'r' . $rev->getId() );
+                                               $this->text = $this->getSectionText( $this->text, 'r' . $rev->getId() );
                                        }
 
-                                       $p_result = $wgParser->parse( $text, $titleObj, $popts );
+                                       // Should we save old revision parses to the parser cache?
+                                       $p_result = $wgParser->parse( $this->text, $titleObj, $popts );
                                }
-
-                       } else { // Not $oldid
-
-                               if ( !is_null ( $pageid ) ) {
-                                       $titleObj = Title::newFromID( $pageid );
-
-                                       if ( !$titleObj ) {
-                                               $this->dieUsageMsg( array( 'nosuchpageid', $pageid ) );
+                       } else { // Not $oldid, but $pageid or $page
+                               if ( $params['redirects'] ) {
+                                       $reqParams = array(
+                                               'action' => 'query',
+                                               'redirects' => '',
+                                       );
+                                       if ( !is_null ( $pageid ) ) {
+                                               $reqParams['pageids'] = $pageid;
+                                       } else { // $page
+                                               $reqParams['titles'] = $page;
                                        }
-                               } else { // $page
-
-                                       if ( $params['redirects'] ) {
-                                               $req = new FauxRequest( array(
-                                                       'action' => 'query',
-                                                       'redirects' => '',
-                                                       'titles' => $page
-                                               ) );
-                                               $main = new ApiMain( $req );
-                                               $main->execute();
-                                               $data = $main->getResultData();
-                                               $redirValues = @$data['query']['redirects'];
-                                               $to = $page;
-                                               foreach ( (array)$redirValues as $r ) {
-                                                       $to = $r['to'];
-                                               }
-                                       } else {
-                                               $to = $page;
+                                       $req = new FauxRequest( $reqParams );
+                                       $main = new ApiMain( $req );
+                                       $main->execute();
+                                       $data = $main->getResultData();
+                                       $redirValues = isset( $data['query']['redirects'] )
+                                               ? $data['query']['redirects']
+                                               : array();
+                                       $to = $page;
+                                       foreach ( (array)$redirValues as $r ) {
+                                               $to = $r['to'];
                                        }
                                        $titleObj = Title::newFromText( $to );
-                                       if ( !$titleObj || !$titleObj->exists() ) {
-                                               $this->dieUsage( "The page you specified doesn't exist", 'missingtitle' );
+                               } else {
+                                       if ( !is_null ( $pageid ) ) {
+                                               $reqParams['pageids'] = $pageid;
+                                               $titleObj = Title::newFromID( $pageid );
+                                       } else { // $page
+                                               $to = $page;
+                                               $titleObj = Title::newFromText( $to );
                                        }
                                }
+                               if ( !is_null ( $pageid ) ) {
+                                       if ( !$titleObj ) {
+                                               // Still throw nosuchpageid error if pageid was provided
+                                               $this->dieUsageMsg( array( 'nosuchpageid', $pageid ) );
+                                       }
+                               } elseif ( !$titleObj || !$titleObj->exists() ) {
+                                       $this->dieUsage( "The page you specified doesn't exist", 'missingtitle' );
+                               }
                                $wgTitle = $titleObj;
 
                                $articleObj = new Article( $titleObj, 0 );
@@ -153,36 +162,42 @@ class ApiParse extends ApiBase {
                                        $oldid = $articleObj->getRevIdFetched();
                                }
 
-                               $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid ) ;
+                               // Potentially cached
+                               $p_result = $this->getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageid,
+                                        isset( $prop['wikitext'] ) ) ;
                        }
-
                } else { // Not $oldid, $pageid, $page. Hence based on $text
 
+                       $this->text = $text;
                        $titleObj = Title::newFromText( $title );
                        if ( !$titleObj ) {
-                               $titleObj = Title::newFromText( 'API' );
+                               $this->dieUsageMsg( array( 'invalidtitle', $title ) );
                        }
                        $wgTitle = $titleObj;
 
                        if ( $this->section !== false ) {
-                               $text = $this->getSectionText( $text, $titleObj->getText() );
+                               $this->text = $this->getSectionText( $this->text, $titleObj->getText() );
                        }
 
                        if ( $params['pst'] || $params['onlypst'] ) {
-                               $text = $wgParser->preSaveTransform( $text, $titleObj, $wgUser, $popts );
+                               $this->pstText = $wgParser->preSaveTransform( $this->text, $titleObj, $this->getUser(), $popts );
                        }
                        if ( $params['onlypst'] ) {
                                // Build a result and bail out
+                               $result_array = array();
                                $result_array['text'] = array();
-                               $this->getResult()->setContent( $result_array['text'], $text );
-                               $this->getResult()->addValue( null, $this->getModuleName(), $result_array );
+                               $result->setContent( $result_array['text'], $this->pstText );
+                               if ( isset( $prop['wikitext'] ) ) {
+                                       $result_array['wikitext'] = array();
+                                       $result->setContent( $result_array['wikitext'], $this->text );
+                               }
+                               $result->addValue( null, $this->getModuleName(), $result_array );
                                return;
                        }
-                       $p_result = $wgParser->parse( $text, $titleObj, $popts );
+                       // Not cached (save or load)
+                       $p_result = $wgParser->parse( $params['pst'] ? $this->pstText : $this->text, $titleObj, $popts );
                }
 
-               // Return result
-               $result = $this->getResult();
                $result_array = array();
 
                $result_array['title'] = $titleObj->getPrefixedText();
@@ -202,7 +217,7 @@ class ApiParse extends ApiBase {
 
                if ( !is_null( $params['summary'] ) ) {
                        $result_array['parsedsummary'] = array();
-                       $result->setContent( $result_array['parsedsummary'], $wgUser->getSkin()->formatComment( $params['summary'], $titleObj ) );
+                       $result->setContent( $result_array['parsedsummary'], Linker::formatComment( $params['summary'], $titleObj ) );
                }
 
                if ( isset( $prop['langlinks'] ) ) {
@@ -244,31 +259,39 @@ class ApiParse extends ApiBase {
                }
 
                if ( isset( $prop['headitems'] ) || isset( $prop['headhtml'] ) ) {
-                       $out = new OutputPage;
-                       $out->addParserOutputNoText( $p_result );
-                       $userSkin = $wgUser->getSkin();
-               }
+                       $context = $this->getContext();
+                       $context->setTitle( $titleObj );
+                       $context->getOutput()->addParserOutputNoText( $p_result );
 
-               if ( isset( $prop['headitems'] ) ) {
-                       $headItems = $this->formatHeadItems( $p_result->getHeadItems() );
+                       if ( isset( $prop['headitems'] ) ) {
+                               $headItems = $this->formatHeadItems( $p_result->getHeadItems() );
 
-                       $userSkin->setupUserCss( $out );
-                       $css = $this->formatCss( $out->buildCssLinksArray() );
+                               $css = $this->formatCss( $context->getOutput()->buildCssLinksArray() );
 
-                       $scripts = array( $out->getHeadScripts( $userSkin ) );
+                               $scripts = array( $context->getOutput()->getHeadScripts() );
 
-                       $result_array['headitems'] = array_merge( $headItems, $css, $scripts );
-               }
+                               $result_array['headitems'] = array_merge( $headItems, $css, $scripts );
+                       }
 
-               if ( isset( $prop['headhtml'] ) ) {
-                       $result_array['headhtml'] = array();
-                       $result->setContent( $result_array['headhtml'], $out->headElement( $userSkin ) );
+                       if ( isset( $prop['headhtml'] ) ) {
+                               $result_array['headhtml'] = array();
+                               $result->setContent( $result_array['headhtml'], $context->getOutput()->headElement( $context->getSkin() ) );
+                       }
                }
 
                if ( isset( $prop['iwlinks'] ) ) {
                        $result_array['iwlinks'] = $this->formatIWLinks( $p_result->getInterwikiLinks() );
                }
 
+               if ( isset( $prop['wikitext'] ) ) {
+                       $result_array['wikitext'] = array();
+                       $result->setContent( $result_array['wikitext'], $this->text );
+                       if ( !is_null( $this->pstText ) ) {
+                               $result_array['psttext'] = array();
+                               $result->setContent( $result_array['psttext'], $this->pstText );
+                       }
+               }
+
                $result_mapping = array(
                        'redirects' => 'r',
                        'langlinks' => 'll',
@@ -290,28 +313,39 @@ class ApiParse extends ApiBase {
        }
 
        /**
-        * @param  $articleObj Article
-        * @param  $titleObj Title
-        * @param  $popts ParserOptions
-        * @param  $pageId Int
+        * @param $articleObj Article
+        * @param $titleObj Title
+        * @param $popts ParserOptions
+        * @param $pageId Int
+        * @param $getWikitext Bool
         * @return ParserOutput
         */
-       private function getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageId = null ) {
+       private function getParsedSectionOrText( $articleObj, $titleObj, $popts, $pageId = null, $getWikitext = false ) {
                if ( $this->section !== false ) {
                        global $wgParser;
 
-                       $text = $this->getSectionText( $articleObj->getRawText(), !is_null ( $pageId )
+                       $this->text = $this->getSectionText( $articleObj->getRawText(), !is_null( $pageId )
                                        ? 'page id ' . $pageId : $titleObj->getText() );
 
-                       return $wgParser->parse( $text, $titleObj, $popts );
+                       // Not cached (save or load)
+                       return $wgParser->parse( $this->text, $titleObj, $popts );
                } else {
                        // Try the parser cache first
-                       return $articleObj->getParserOutput();
+                       // getParserOutput will save to Parser cache if able
+                       $pout = $articleObj->getParserOutput();
+                       if ( $getWikitext ) {
+                               $rev = Revision::newFromTitle( $titleObj );
+                               if ( $rev ) {
+                                       $this->text = $rev->getText();
+                               }
+                       }
+                       return $pout;
                }
        }
 
        private function getSectionText( $text, $what ) {
                global $wgParser;
+               // Not cached (save or load)
                $text = $wgParser->getSection( $text, $this->section, false );
                if ( $text === false ) {
                        $this->dieUsage( "There is no section {$this->section} in " . $what, 'nosuchsection' );
@@ -325,10 +359,10 @@ class ApiParse extends ApiBase {
                        $entry = array();
                        $bits = explode( ':', $link, 2 );
                        $title = Title::newFromText( $link );
-                       
+
                        $entry['lang'] = $bits[0];
                        if ( $title ) {
-                               $entry['url'] = $title->getFullURL();
+                               $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
                        }
                        $this->getResult()->setContent( $entry, $bits[1] );
                        $result[] = $entry;
@@ -348,17 +382,43 @@ class ApiParse extends ApiBase {
        }
 
        private function categoriesHtml( $categories ) {
-               global $wgOut, $wgUser;
-               $wgOut->addCategoryLinks( $categories );
-               $sk = $wgUser->getSkin();
-               return $sk->getCategories();
+               $context = $this->getContext();
+               $context->getOutput()->addCategoryLinks( $categories );
+               return $context->getSkin()->getCategories();
        }
 
+       /**
+        * @deprecated since 1.18 No modern skin generates language links this way, please use language links
+        *                        data to generate your own HTML.
+        * @param $languages array
+        * @return string
+        */
        private function languagesHtml( $languages ) {
-               global $wgOut, $wgUser;
-               $wgOut->setLanguageLinks( $languages );
-               $sk = $wgUser->getSkin();
-               return $sk->otherLanguages();
+               global $wgContLang, $wgHideInterlanguageLinks;
+
+               if ( $wgHideInterlanguageLinks || count( $languages ) == 0 ) {
+                       return '';
+               }
+
+               $s = htmlspecialchars( wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' ) );
+
+               $langs = array();
+               foreach ( $languages as $l ) {
+                       $nt = Title::newFromText( $l );
+                       $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
+
+                       $langs[] = Html::element( 'a',
+                               array( 'href' => $nt->getFullURL(), 'title' => $nt->getText(), 'class' => "external" ),
+                               $text == '' ? $l : $text );
+               }
+
+               $s .= implode( htmlspecialchars( wfMsgExt( 'pipe-separator', 'escapenoentities' ) ), $langs );
+
+               if ( $wgContLang->isRTL() ) {
+                       $s = Html::rawElement( 'span', array( 'dir' => "LTR" ), $s );
+               }
+
+               return $s;
        }
 
        private function formatLinks( $links ) {
@@ -386,7 +446,7 @@ class ApiParse extends ApiBase {
 
                                $title = Title::newFromText( "{$prefix}:{$title}" );
                                if ( $title ) {
-                                       $entry['url'] = $title->getFullURL();
+                                       $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
                                }
 
                                $this->getResult()->setContent( $entry, $title->getFullText() );
@@ -434,9 +494,13 @@ class ApiParse extends ApiBase {
                        'text' => null,
                        'summary' => null,
                        'page' => null,
-                       'pageid' => null,
+                       'pageid' => array(
+                               ApiBase::PARAM_TYPE => 'integer',
+                       ),
                        'redirects' => false,
-                       'oldid' => null,
+                       'oldid' => array(
+                               ApiBase::PARAM_TYPE => 'integer',
+                       ),
                        'prop' => array(
                                ApiBase::PARAM_DFLT => 'text|langlinks|categories|links|templates|images|externallinks|sections|revid|displaytitle',
                                ApiBase::PARAM_ISMULTI => true,
@@ -456,6 +520,7 @@ class ApiParse extends ApiBase {
                                        'headitems',
                                        'headhtml',
                                        'iwlinks',
+                                       'wikitext',
                                )
                        ),
                        'pst' => false,
@@ -471,7 +536,7 @@ class ApiParse extends ApiBase {
                return array(
                        'text' => 'Wikitext to parse',
                        'summary' => 'Summary to parse',
-                       'redirects' => "If the {$p}page parameter is set to a redirect, resolve it",
+                       'redirects' => "If the {$p}page or the {$p}pageid parameter is set to a redirect, resolve it",
                        'title' => 'Title of page the text belongs to',
                        'page' => "Parse the content of this page. Cannot be used together with {$p}text and {$p}title",
                        'pageid' => "Parse the content of this page. Overrides {$p}page",
@@ -493,7 +558,7 @@ class ApiParse extends ApiBase {
                                ' headitems      - Gives items to put in the <head> of the page',
                                ' headhtml       - Gives parsed <head> of the page',
                                ' iwlinks        - Gives interwiki links in the parsed wikitext',
-                               'NOTE: Section tree is only generated if there are more than 4 sections, or if the __TOC__ keyword is present'
+                               ' wikitext       - Gives the original wikitext that was parsed',
                        ),
                        'pst' => array(
                                'Do a pre-save transform on the input before parsing it',
@@ -510,7 +575,7 @@ class ApiParse extends ApiBase {
        }
 
        public function getDescription() {
-               return 'This module parses wikitext and returns parser output';
+               return 'Parses wikitext and returns parser output';
        }
 
        public function getPossibleErrors() {
@@ -521,15 +586,20 @@ class ApiParse extends ApiBase {
                        array( 'code' => 'missingtitle', 'info' => 'The page you specified doesn\'t exist' ),
                        array( 'code' => 'nosuchsection', 'info' => 'There is no section sectionnumber in page' ),
                        array( 'nosuchpageid' ),
+                       array( 'invalidtitle', 'title' ),
                ) );
        }
 
-       protected function getExamples() {
+       public function getExamples() {
                return array(
                        'api.php?action=parse&text={{Project:Sandbox}}'
                );
        }
 
+       public function getHelpUrls() {
+               return 'http://www.mediawiki.org/wiki/API:Parsing_wikitext#parse';
+       }
+
        public function getVersion() {
                return __CLASS__ . ': $Id$';
        }