<?php
/**
* MediaWiki is the to-be base class for this whole project
+ *
+ * @internal documentation reviewed 15 Mar 2010
*/
class MediaWiki {
-
- var $GET; /* Stores the $_GET variables at time of creation, can be changed */
var $params = array();
- /** Constructor. It just save the $_GET variable */
- function __construct() {
- $this->GET = $_GET;
- }
+ /** Constructor */
+ function __construct() {}
/**
* Stores key/value pairs to circumvent global variables
* Note that keys are case-insensitive!
*
* @param $key String: key to get
- * @param $default Mixed: default value if if the key doesn't exist
+ * @param $default string default value, defaults to empty string
+ * @return $default Mixed: default value if if the key doesn't exist
*/
function getVal( $key, $default = '' ) {
$key = strtolower( $key );
/**
* Initialization of ... everything
* Performs the request too
- * FIXME: why is this crap called "initialize" when it performs everything?
*
* @param $title Title ($wgTitle)
* @param $article Article
* @param $user User
* @param $request WebRequest
*/
- function initialize( &$title, &$article, &$output, &$user, $request ) {
+ function performRequestForTitle( &$title, &$article, &$output, &$user, $request ) {
wfProfileIn( __METHOD__ );
- if( !$this->preliminaryChecks( $title, $output, $request ) ) {
+
+ $output->setTitle( $title );
+
+ wfRunHooks( 'BeforeInitialize', array( &$title, &$article, &$output, &$user, $request, $this ) );
+
+ if( !$this->preliminaryChecks( $title, $output ) ) {
wfProfileOut( __METHOD__ );
return;
}
- if( !$this->initializeSpecialCases( $title, $output, $request ) ) {
- $new_article = $this->initializeArticle( $title, $request );
+ // Call handleSpecialCases() to deal with all special requests...
+ if( !$this->handleSpecialCases( $title, $output, $request ) ) {
+ // ...otherwise treat it as an article view. The article
+ // may be a redirect to another article or URL.
+ $new_article = $this->initializeArticle( $title, $output, $request );
if( is_object( $new_article ) ) {
$article = $new_article;
$this->performAction( $output, $article, $title, $user, $request );
if( $wgRequest->getVal( 'printable' ) === 'yes' ) {
$wgOut->setPrintable();
}
- $ret = NULL;
- if( $curid = $wgRequest->getInt( 'curid' ) ) {
- # URLs like this are generated by RC, because rc_title isn't always accurate
+
+ $curid = $wgRequest->getInt( 'curid' );
+ if( $wgRequest->getCheck( 'search' ) ) {
+ // Compatibility with old search URLs which didn't use Special:Search
+ // Just check for presence here, so blank requests still
+ // show the search page when using ugly URLs (bug 8054).
+ $ret = SpecialPage::getTitleFor( 'Search' );
+ } elseif( $curid ) {
+ // URLs like this are generated by RC, because rc_title isn't always accurate
$ret = Title::newFromID( $curid );
- } elseif( '' == $title && 'delete' != $action ) {
+ } elseif( $title == '' && $action != 'delete' ) {
$ret = Title::newMainPage();
} else {
$ret = Title::newFromURL( $title );
if( count( $wgContLang->getVariants() ) > 1 && !is_null( $ret ) && $ret->getArticleID() == 0 )
$wgContLang->findVariantLink( $title, $ret );
}
- # For non-special titles, check for implicit titles
+ // For non-special titles, check for implicit titles
if( is_null( $ret ) || $ret->getNamespace() != NS_SPECIAL ) {
// We can have urls with just ?diff=,?oldid= or even just ?diff=
$oldid = $wgRequest->getInt( 'oldid' );
}
/**
- * Checks for search query and anon-cannot-read case
+ * Checks for anon-cannot-read case
*
* @param $title Title
* @param $output OutputPage
- * @param $request WebRequest
+ * @return boolean true if successful
*/
- function preliminaryChecks( &$title, &$output, $request ) {
- if( $request->getCheck( 'search' ) ) {
- // Compatibility with old search URLs which didn't use Special:Search
- // Just check for presence here, so blank requests still
- // show the search page when using ugly URLs (bug 8054).
-
- // Do this above the read whitelist check for security...
- $title = SpecialPage::getTitleFor( 'Search' );
- }
- # If the user is not logged in, the Namespace:title of the article must be in
- # the Read array in order for the user to see it. (We have to check here to
- # catch special pages etc. We check again in Article::view())
+ function preliminaryChecks( &$title, &$output ) {
+ global $wgTitle;
+ // If the user is not logged in, the Namespace:title of the article must be in
+ // the Read array in order for the user to see it. (We have to check here to
+ // catch special pages etc. We check again in Article::view())
if( !is_null( $title ) && !$title->userCanRead() ) {
+ // Bug 32276: allowing the skin to generate output with $wgTitle
+ // set to the input title would allow anonymous users to
+ // determine whether a page exists, potentially leaking private data. In fact, the
+ // curid and oldid request parameters would allow page titles to be enumerated even
+ // when they are not guessable. So we reset the title to Special:Badtitle before the
+ // permissions error is displayed.
+ $badtitle = SpecialPage::getTitleFor( 'Badtitle' );
+ $output->setTitle( $badtitle );
+ $wgTitle = $badtitle;
+
$output->loginToUse();
- $output->output();
+ $this->finalCleanup( $output );
$output->disable();
return false;
}
* - redirect loop
* - special pages
*
- * FIXME: why is this crap called "initialize" when it performs everything?
- *
* @param $title Title
* @param $output OutputPage
* @param $request WebRequest
* @return bool true if the request is already executed
*/
- function initializeSpecialCases( &$title, &$output, $request ) {
+ function handleSpecialCases( &$title, &$output, $request ) {
wfProfileIn( __METHOD__ );
$action = $this->getVal( 'Action' );
- if( is_null($title) || $title->getDBkey() == '' ) {
+
+ // Invalid titles. Bug 21776: The interwikis must redirect even if the page name is empty.
+ if( is_null($title) || ( ( $title->getDBkey() == '' ) && ( $title->getInterwiki() == '' ) ) ) {
$title = SpecialPage::getTitleFor( 'Badtitle' );
- # Die now before we mess up $wgArticle and the skin stops working
+ $output->setTitle( $title ); // bug 21456
+ // Die now before we mess up $wgArticle and the skin stops working
throw new ErrorPageError( 'badtitle', 'badtitletext' );
+
+ // Interwiki redirects
} else if( $title->getInterwiki() != '' ) {
- if( $rdfrom = $request->getVal( 'rdfrom' ) ) {
+ $rdfrom = $request->getVal( 'rdfrom' );
+ if( $rdfrom ) {
$url = $title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) );
} else {
- $url = $title->getFullURL();
+ $query = $request->getValues();
+ unset( $query['title'] );
+ $url = $title->getFullURL( $query );
}
/* Check for a redirect loop */
if( !preg_match( '/^' . preg_quote( $this->getVal('Server'), '/' ) . '/', $url ) && $title->isLocal() ) {
- $output->redirect( $url );
+ // 301 so google et al report the target as the actual url.
+ $output->redirect( $url, 301 );
} else {
$title = SpecialPage::getTitleFor( 'Badtitle' );
+ $output->setTitle( $title ); // bug 21456
+ wfProfileOut( __METHOD__ );
throw new ErrorPageError( 'badtitle', 'badtitletext' );
}
- } else if( $action == 'view' && !$request->wasPosted() &&
- ( !isset($this->GET['title']) || $title->getPrefixedDBKey() != $this->GET['title'] ) &&
- !count( array_diff( array_keys( $this->GET ), array( 'action', 'title' ) ) ) )
+ // Redirect loops, no title in URL, $wgUsePathInfo URLs, and URLs with a variant
+ } else if ( $action == 'view' && !$request->wasPosted()
+ && ( $request->getVal( 'title' ) === null || $title->getPrefixedDBKey() != $request->getVal( 'title' ) )
+ && !count( array_diff( array_keys( $request->getValues() ), array( 'action', 'title' ) ) ) )
{
+ if ( $title->getNamespace() == NS_SPECIAL ) {
+ list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $title->getDBkey() );
+ if ( $name ) {
+ $title = SpecialPage::getTitleFor( $name, $subpage );
+ }
+ }
$targetUrl = $title->getFullURL();
// Redirect to canonical url, make it a 301 to allow caching
if( $targetUrl == $request->getFullRequestURL() ) {
"to true.";
}
wfHttpError( 500, "Internal error", $message );
+ wfProfileOut( __METHOD__ );
return false;
} else {
$output->setSquidMaxage( 1200 );
$output->redirect( $targetUrl, '301' );
}
+ // Special pages
} else if( NS_SPECIAL == $title->getNamespace() ) {
/* actions that need to be made when we have a special pages */
SpecialPage::executePath( $title );
* Create an Article object for the page, following redirects if needed.
*
* @param $title Title ($wgTitle)
- * @param $request WebRequest
+ * @param $output OutputPage ($wgOut)
+ * @param $request WebRequest ($wgRequest)
* @return mixed an Article, or a string to redirect to another URL
*/
- function initializeArticle( &$title, $request ) {
+ function initializeArticle( &$title, &$output, $request ) {
wfProfileIn( __METHOD__ );
$action = $this->getVal( 'action', 'view' );
$article = self::articleFromTitle( $title );
- # NS_MEDIAWIKI has no redirects.
- # It is also used for CSS/JS, so performance matters here...
+ // NS_MEDIAWIKI has no redirects.
+ // It is also used for CSS/JS, so performance matters here...
if( $title->getNamespace() == NS_MEDIAWIKI ) {
wfProfileOut( __METHOD__ );
return $article;
$file = ($title->getNamespace() == NS_FILE) ? $article->getFile() : null;
if( ( $action == 'view' || $action == 'render' ) // ... for actions that show content
&& !$request->getVal( 'oldid' ) && // ... and are not old revisions
+ !$request->getVal( 'diff' ) && // ... and not when showing diff
$request->getVal( 'redirect' ) != 'no' && // ... unless explicitly told not to
// ... and the article is not a non-redirect image page with associated file
!( is_object( $file ) && $file->exists() && !$file->getRedirected() ) )
{
- # Give extensions a change to ignore/handle redirects as needed
+ // Give extensions a change to ignore/handle redirects as needed
$ignoreRedirect = $target = false;
-
+
$dbr = wfGetDB( DB_SLAVE );
$article->loadPageData( $article->pageDataFromTitle( $dbr, $title ) );
- wfRunHooks( 'InitializeArticleMaybeRedirect',
+ wfRunHooks( 'InitializeArticleMaybeRedirect',
array(&$title,&$request,&$ignoreRedirect,&$target,&$article) );
- // Follow redirects only for... redirects
- if( !$ignoreRedirect && $article->isRedirect() ) {
- # Is the target already set by an extension?
+ // Follow redirects only for... redirects.
+ // If $target is set, then a hook wanted to redirect.
+ if( !$ignoreRedirect && ($target || $article->isRedirect()) ) {
+ // Is the target already set by an extension?
$target = $target ? $target : $article->followRedirect();
if( is_string( $target ) ) {
if( !$this->getVal( 'DisableHardRedirects' ) ) {
// we'll need to redirect
+ wfProfileOut( __METHOD__ );
return $target;
}
}
$rarticle->setRedirectedFrom( $title );
$article = $rarticle;
$title = $target;
+ $output->setTitle( $title );
}
}
} else {
}
/**
- * Cleaning up by doing deferred updates, calling LBFactory and doing the output
+ * Cleaning up request by doing:
+ ** deferred updates, DB transaction, and the output
*
- * @param $deferredUpdates array of updates to do
* @param $output OutputPage
*/
- function finalCleanup( &$deferredUpdates, &$output ) {
+ function finalCleanup( &$output ) {
wfProfileIn( __METHOD__ );
- # Now commit any transactions, so that unreported errors after output() don't roll back the whole thing
+ // Now commit any transactions, so that unreported errors after
+ // output() don't roll back the whole DB transaction
$factory = wfGetLBFactory();
$factory->commitMasterChanges();
- # Output everything!
+ // Output everything!
$output->output();
- # Do any deferred jobs
- $this->doUpdates( $deferredUpdates );
+ // Do any deferred jobs
+ wfDoUpdates( true );
$this->doJobs();
- # Commit and close up!
- $factory->shutdown();
- wfProfileOut( __METHOD__ );
- }
-
- /**
- * Deferred updates aren't really deferred anymore. It's important to report
- * errors to the user, and that means doing this before OutputPage::output().
- * Note that for page saves, the client will wait until the script exits
- * anyway before following the redirect.
- *
- * @param $updates array of objects that hold an update to do
- */
- function doUpdates( &$updates ) {
- wfProfileIn( __METHOD__ );
- /* No need to get master connections in case of empty updates array */
- if (!$updates) {
- wfProfileOut( __METHOD__ );
- return;
- }
-
- $dbw = wfGetDB( DB_MASTER );
- foreach( $updates as $up ) {
- $up->doUpdate();
-
- # Commit after every update to prevent lock contention
- if( $dbw->trxLevel() ) {
- $dbw->commit();
- }
- }
wfProfileOut( __METHOD__ );
}
*/
function restInPeace() {
wfLogProfilingData();
+ // Commit and close up!
+ $factory = wfGetLBFactory();
+ $factory->commitMasterChanges();
+ $factory->shutdown();
wfDebug( "Request ended normally\n" );
}
$action = 'nosuchaction';
}
+ // Workaround for bug #20966: inability of IE to provide an action dependent
+ // on which submit button is clicked.
+ if ( $action === 'historysubmit' ) {
+ if ( $request->getBool( 'revisiondelete' ) ) {
+ $action = 'revisiondelete';
+ } else {
+ $action = 'view';
+ }
+ }
+
switch( $action ) {
case 'view':
$output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
if( $request->getFullRequestURL() == $title->getInternalURL( 'action=history' ) ) {
$output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
}
- $history = new PageHistory( $article );
+ $history = new HistoryPage( $article );
$history->history();
break;
+ case 'revisiondelete':
+ // For show/hide submission from history page
+ $special = SpecialPage::getPage( 'Revisiondelete' );
+ $special->execute( '' );
+ break;
default:
if( wfRunHooks( 'UnknownAction', array( $action, $article ) ) ) {
$output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
}
-}; /* End of class MediaWiki */
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff