/**
* MediaWiki is the to-be base class for this whole project
*/
-
class MediaWiki {
var $GET; /* Stores the $_GET variables at time of creation, can be changed */
var $params = array();
-
- /**
- * Constructor
- */
- function MediaWiki () {
+
+ /** Constructor. It just save the $_GET variable */
+ function __construct() {
$this->GET = $_GET;
}
-
+
/**
* Stores key/value pairs to circumvent global variables
* Note that keys are case-insensitive!
+ *
+ * @param $key String: key to store
+ * @param $value Mixed: value to put for the key
*/
function setVal( $key, &$value ) {
$key = strtolower( $key );
$this->params[$key] =& $value;
}
-
+
/**
- * Retieves key/value pairs to circumvent global variables
+ * Retrieves 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
*/
- function getVal( $key, $default = "" ) {
+ function getVal( $key, $default = '' ) {
$key = strtolower( $key );
if( isset( $this->params[$key] ) ) {
return $this->params[$key];
}
return $default;
}
-
+
/**
* Initialization of ... everything
- @return Article either the object to become $wgArticle, or NULL
+ * Performs the request too
+ *
+ * @param $title Title ($wgTitle)
+ * @param $article Article
+ * @param $output OutputPage
+ * @param $user User
+ * @param $request WebRequest
*/
- function initialize ( &$title, &$output, &$user, $request) {
- wfProfileIn( 'MediaWiki::initialize' );
- $this->preliminaryChecks ( $title, $output, $request ) ;
- $article = NULL;
+ function initialize( &$title, &$article, &$output, &$user, $request ) {
+ wfProfileIn( __METHOD__ );
+ $this->preliminaryChecks( $title, $output, $request ) ;
if ( !$this->initializeSpecialCases( $title, $output, $request ) ) {
- $article = $this->initializeArticle( $title, $request );
- if( is_object( $article ) ) {
+ $new_article = $this->initializeArticle( $title, $request );
+ if( is_object( $new_article ) ) {
+ $article = $new_article;
$this->performAction( $output, $article, $title, $user, $request );
- } elseif( is_string( $article ) ) {
- $output->redirect( $article );
+ } elseif( is_string( $new_article ) ) {
+ $output->redirect( $new_article );
} else {
- wfDebugDieBacktrace( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" );
+ throw new MWException( "Shouldn't happen: MediaWiki::initializeArticle() returned neither an object nor a URL" );
}
}
- wfProfileOut( 'MediaWiki::initialize' );
- return $article;
+ wfProfileOut( __METHOD__ );
+ }
+
+ /**
+ * Check if the maximum lag of database slaves is higher that $maxLag, and
+ * if it's the case, output an error message
+ *
+ * @param $maxLag int: maximum lag allowed for the request, as supplied by
+ * the client
+ * @return bool true if the request can continue
+ */
+ function checkMaxLag( $maxLag ) {
+ list( $host, $lag ) = wfGetLB()->getMaxLag();
+ if ( $lag > $maxLag ) {
+ wfMaxlagError( $host, $lag, $maxLag );
+ return false;
+ } else {
+ return true;
+ }
}
-
+
+
/**
* Checks some initial queries
* Note that $title here is *not* a Title object, but a string!
+ *
+ * @param $title String
+ * @param $action String
+ * @return Title object to be $wgTitle
*/
- function checkInitialQueries( $title,$action,&$output,$request, $lang) {
- if ($request->getVal( 'printable' ) == 'yes') {
- $output->setPrintable();
+ function checkInitialQueries( $title, $action ) {
+ global $wgOut, $wgRequest, $wgContLang;
+ if( $wgRequest->getVal( 'printable' ) == 'yes' ){
+ $wgOut->setPrintable();
}
-
- $ret = NULL ;
-
-
+
+ $ret = NULL;
+
if ( '' == $title && 'delete' != $action ) {
- $ret = Title::newFromText( wfMsgForContent( 'mainpage' ) );
- } elseif ( $curid = $request->getInt( 'curid' ) ) {
+ $ret = Title::newMainPage();
+ } elseif ( $curid = $wgRequest->getInt( 'curid' ) ) {
# URLs like this are generated by RC, because rc_title isn't always accurate
$ret = Title::newFromID( $curid );
} else {
$ret = Title::newFromURL( $title );
- /* check variant links so that interwiki links don't have to worry about
- the possible different language variants
- */
- if( count($lang->getVariants()) > 1 && !is_null($ret) && $ret->getArticleID() == 0 )
- $lang->findVariantLink( $title, $ret );
-
+ // check variant links so that interwiki links don't have to worry
+ // about the possible different language variants
+ if( count( $wgContLang->getVariants() ) > 1 && !is_null( $ret ) && $ret->getArticleID() == 0 )
+ $wgContLang->findVariantLink( $title, $ret );
+
+ }
+ if ( ( $oldid = $wgRequest->getInt( 'oldid' ) )
+ && ( is_null( $ret ) || $ret->getNamespace() != NS_SPECIAL ) ) {
+ // Allow oldid to override a changed or missing title.
+ $rev = Revision::newFromId( $oldid );
+ if( $rev ) {
+ $ret = $rev->getTitle();
+ }
}
- return $ret ;
+ return $ret;
}
-
+
/**
* Checks for search query and anon-cannot-read case
+ *
+ * @param $title Title
+ * @param $output OutputPage
+ * @param $request WebRequest
*/
- function preliminaryChecks ( &$title, &$output, $request ) {
-
- # Debug statement for user levels
- // print_r($wgUser);
-
- $search = $request->getText( 'search' );
- if( !is_null( $search ) && $search !== '' ) {
+ function preliminaryChecks( &$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 = Title::makeTitle( NS_SPECIAL, 'Search' );
+ $title = SpecialPage::getTitleFor( 'Search' );
}
- $this->setVal( "Search", $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
$output->output();
exit;
}
-
+
}
-
+
/**
- * Initialize the object to be known as $wgArticle for special cases
+ * Initialize some special cases:
+ * - bad titles
+ * - local interwiki redirects
+ * - redirect loop
+ * - special pages
+ *
+ * @param $title Title
+ * @param $output OutputPage
+ * @param $request WebRequest
+ * @return bool true if the request is already executed
*/
- function initializeSpecialCases ( &$title, &$output, $request ) {
+ function initializeSpecialCases( &$title, &$output, $request ) {
+ wfProfileIn( __METHOD__ );
- wfProfileIn( 'MediaWiki::initializeSpecialCases' );
-
- $search = $this->getVal('Search');
- $action = $this->getVal('Action');
- if( !$this->getVal('DisableInternalSearch') && !is_null( $search ) && $search !== '' ) {
- require_once( 'includes/SpecialSearch.php' );
- $title = Title::makeTitle( NS_SPECIAL, 'Search' );
- wfSpecialSearch();
- } else if( !$title or $title->getDBkey() == '' ) {
- $title = Title::newFromText( wfMsgForContent( 'badtitle' ) );
- $output->errorpage( 'badtitle', 'badtitletext' );
+ $action = $this->getVal( 'Action' );
+ if( !$title || $title->getDBkey() == '' ) {
+ $title = SpecialPage::getTitleFor( 'Badtitle' );
+ # Die now before we mess up $wgArticle and the skin stops working
+ throw new ErrorPageError( 'badtitle', 'badtitletext' );
} else if ( $title->getInterwiki() != '' ) {
if( $rdfrom = $request->getVal( 'rdfrom' ) ) {
$url = $title->getFullURL( 'rdfrom=' . urlencode( $rdfrom ) );
if ( !preg_match( '/^' . preg_quote( $this->getVal('Server'), '/' ) . '/', $url ) && $title->isLocal() ) {
$output->redirect( $url );
} else {
- $title = Title::newFromText( wfMsgForContent( 'badtitle' ) );
- $output->errorpage( 'badtitle', 'badtitletext' );
+ $title = SpecialPage::getTitleFor( 'Badtitle' );
+ throw new ErrorPageError( 'badtitle', 'badtitletext' );
}
- } else if ( ( $action == 'view' ) &&
+ } 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 to canonical url, make it a 301 to allow caching */
- $output->setSquidMaxage( 1200 );
- $output->redirect( $title->getFullURL(), '301');
+ $targetUrl = $title->getFullURL();
+ // Redirect to canonical url, make it a 301 to allow caching
+ if( $targetUrl == $request->getFullRequestURL() ) {
+ $message = "Redirect loop detected!\n\n" .
+ "This means the wiki got confused about what page was " .
+ "requested; this sometimes happens when moving a wiki " .
+ "to a new server or changing the server configuration.\n\n";
+
+ if( $this->getVal( 'UsePathInfo' ) ) {
+ $message .= "The wiki is trying to interpret the page " .
+ "title from the URL path portion (PATH_INFO), which " .
+ "sometimes fails depending on the web server. Try " .
+ "setting \"\$wgUsePathInfo = false;\" in your " .
+ "LocalSettings.php, or check that \$wgArticlePath " .
+ "is correct.";
+ } else {
+ $message .= "Your web server was detected as possibly not " .
+ "supporting URL path components (PATH_INFO) correctly; " .
+ "check your LocalSettings.php for a customized " .
+ "\$wgArticlePath setting and/or toggle \$wgUsePathInfo " .
+ "to true.";
+ }
+ wfHttpError( 500, "Internal error", $message );
+ return false;
+ } else {
+ $output->setSquidMaxage( 1200 );
+ $output->redirect( $targetUrl, '301' );
+ }
} else if ( NS_SPECIAL == $title->getNamespace() ) {
/* actions that need to be made when we have a special pages */
SpecialPage::executePath( $title );
} else {
/* No match to special cases */
- wfProfileOut( 'MediaWiki::initializeSpecialCases' );
+ wfProfileOut( __METHOD__ );
return false;
}
/* Did match a special case */
- wfProfileOut( 'MediaWiki::initializeSpecialCases' );
+ wfProfileOut( __METHOD__ );
return true;
}
/**
* Create an Article object of the appropriate class for the given page.
- * @param Title $title
- * @return Article
+ *
+ * @param $title Title
+ * @return Article object
*/
- function articleFromTitle( $title ) {
+ static function articleFromTitle( &$title ) {
if( NS_MEDIA == $title->getNamespace() ) {
// FIXME: where should this go?
$title = Title::makeTitle( NS_IMAGE, $title->getDBkey() );
}
-
+
+ $article = null;
+ wfRunHooks( 'ArticleFromTitle', array( &$title, &$article ) );
+ if( $article ) {
+ return $article;
+ }
+
switch( $title->getNamespace() ) {
case NS_IMAGE:
- require_once( 'includes/ImagePage.php' );
return new ImagePage( $title );
case NS_CATEGORY:
- require_once( 'includes/CategoryPage.php' );
return new CategoryPage( $title );
default:
return new Article( $title );
}
}
-
+
/**
* Initialize the object to be known as $wgArticle for "standard" actions
* Create an Article object for the page, following redirects if needed.
- * @param Title $title
- * @param Request $request
- * @param string $action
+ *
+ * @param $title Title ($wgTitle)
+ * @param $request WebRequest
* @return mixed an Article, or a string to redirect to another URL
*/
- function initializeArticle( $title, $request ) {
- wfProfileIn( 'MediaWiki::initializeArticle' );
+ function initializeArticle( &$title, $request ) {
+ wfProfileIn( __METHOD__ );
+
+ $action = $this->getVal( 'action' );
+ $article = self::articleFromTitle( $title );
- $action = $this->getVal('Action');
- $article = $this->articleFromTitle( $title );
+ wfDebug("Article: ".$title->getPrefixedText()."\n");
// Namespace might change when using redirects
- if( $action == 'view' && !$request->getVal( 'oldid' ) && $request->getVal( 'redirect' ) != 'no' ) {
- $target = $article->followRedirect();
- if( is_string( $target ) ) {
- global $wgDisableHardRedirects;
- if( !$wgDisableHardRedirects ) {
- // we'll need to redirect
- return $target;
+ // Check for redirects ...
+ $file = $title->getNamespace() == NS_IMAGE ? $article->getFile() : null;
+ if( ( $action == 'view' || $action == 'render' ) // ... for actions that show content
+ && !$request->getVal( 'oldid' ) && // ... and are not old revisions
+ $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
+ $ignoreRedirect = $target = false;
+ wfRunHooks( 'InitializeArticleMaybeRedirect', array( &$title, &$request, &$ignoreRedirect, &$target ) );
+
+ $dbr = wfGetDB( DB_SLAVE );
+ $article->loadPageData( $article->pageDataFromTitle( $dbr, $title ) );
+
+ // Follow redirects only for... redirects
+ if( !$ignoreRedirect && $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
+ return $target;
+ }
}
- }
- if( is_object( $target ) ) {
- // evil globals hack!
- global $wgTitle;
- $wgTitle = $target;
- $article = $this->articleFromTitle( $target );
- $article->setRedirectedFrom( $title );
+ if( is_object( $target ) ) {
+ // Rewrite environment to redirected article
+ $rarticle = self::articleFromTitle( $target );
+ $rarticle->loadPageData( $rarticle->pageDataFromTitle( $dbr, $target ) );
+ if ( $rarticle->exists() || ( is_object( $file ) && !$file->isLocal() ) ) {
+ $rarticle->setRedirectedFrom( $title );
+ $article = $rarticle;
+ $title = $target;
+ }
+ }
+ } else {
+ $title = $article->getTitle();
}
}
- wfProfileOut( 'MediaWiki::initializeArticle' );
+ wfProfileOut( __METHOD__ );
return $article;
}
/**
- * Cleaning up by doing deferred updates, calling loadbalancer and doing the output
+ * Cleaning up by doing deferred updates, calling LBFactory and doing the output
+ *
+ * @param $deferredUpdates array of updates to do
+ * @param $output OutputPage
*/
- function finalCleanup ( &$deferredUpdates, &$loadBalancer, &$output ) {
- wfProfileIn( 'MediaWiki::finalCleanup' );
+ function finalCleanup ( &$deferredUpdates, &$output ) {
+ wfProfileIn( __METHOD__ );
$this->doUpdates( $deferredUpdates );
- $loadBalancer->saveMasterPos();
+ $this->doJobs();
# Now commit any transactions, so that unreported errors after output() don't roll back the whole thing
- $loadBalancer->commitAll();
+ $factory = wfGetLBFactory();
+ $factory->shutdown();
$output->output();
- wfProfileOut( 'MediaWiki::finalCleanup' );
+ 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.
+ * 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( 'MediaWiki::doUpdates' );
+ 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( 'MediaWiki::doUpdates' );
+ wfProfileOut( __METHOD__ );
}
-
+
+ /**
+ * Do a job from the job queue
+ */
+ function doJobs() {
+ $jobRunRate = $this->getVal( 'JobRunRate' );
+
+ if ( $jobRunRate <= 0 || wfReadOnly() ) {
+ return;
+ }
+ if ( $jobRunRate < 1 ) {
+ $max = mt_getrandmax();
+ if ( mt_rand( 0, $max ) > $max * $jobRunRate ) {
+ return;
+ }
+ $n = 1;
+ } else {
+ $n = intval( $jobRunRate );
+ }
+
+ while ( $n-- && false != ( $job = Job::pop() ) ) {
+ $output = $job->toString() . "\n";
+ $t = -wfTime();
+ $success = $job->run();
+ $t += wfTime();
+ $t = round( $t*1000 );
+ if ( !$success ) {
+ $output .= "Error: " . $job->getLastError() . ", Time: $t ms\n";
+ } else {
+ $output .= "Success, Time: $t ms\n";
+ }
+ wfDebugLog( 'jobqueue', $output );
+ }
+ }
+
/**
* Ends this task peacefully
*/
- function restInPeace ( &$loadBalancer ) {
- wfProfileClose();
- logProfilingData();
- $loadBalancer->closeAll();
+ function restInPeace() {
+ wfLogProfilingData();
wfDebug( "Request ended normally\n" );
}
/**
* Perform one of the "standard" actions
+ *
+ * @param $output OutputPage
+ * @param $article Article
+ * @param $title Title
+ * @param $user User
+ * @param $request WebRequest
*/
function performAction( &$output, &$article, &$title, &$user, &$request ) {
+ wfProfileIn( __METHOD__ );
- wfProfileIn( 'MediaWiki::performAction' );
+ if ( !wfRunHooks( 'MediaWikiPerformAction', array( $output, $article, $title, $user, $request, $this ) ) ) {
+ wfProfileOut( __METHOD__ );
+ return;
+ }
- $action = $this->getVal('Action');
- if( in_array( $action, $this->getVal('DisabledActions',array()) ) ) {
+ $action = $this->getVal( 'Action' );
+ if( in_array( $action, $this->getVal( 'DisabledActions', array() ) ) ) {
/* No such action; this will switch to the default case */
- $action = "nosuchaction";
+ $action = 'nosuchaction';
}
switch( $action ) {
case 'unprotect':
case 'info':
case 'markpatrolled':
- case 'validate':
case 'render':
case 'deletetrackback':
case 'purge':
showCreditsPage( $article );
break;
case 'submit':
- if( !$this->getVal( 'CommandLineMode' ) && !$request->checkSessionCookie() ) {
+ if( session_id() == '' ) {
/* Send a cookie so anons get talk message notifications */
- User::SetupSession();
+ wfSetupSession();
}
/* Continue... */
case 'edit':
- $internal = $request->getVal( 'internaledit' );
- $external = $request->getVal( 'externaledit' );
- $section = $request->getVal( 'section' );
- $oldid = $request->getVal( 'oldid' );
- if( !$this->getVal( 'UseExternalEditor' ) || $action=='submit' || $internal ||
- $section || $oldid || ( !$user->getOption( 'externaleditor' ) && !$external ) ) {
- require_once( 'includes/EditPage.php' );
- $editor = new EditPage( $article );
- $editor->submit();
- } elseif( $this->getVal( 'UseExternalEditor' ) && ( $external || $user->getOption( 'externaleditor' ) ) ) {
- require_once( 'includes/ExternalEdit.php' );
- $mode = $request->getVal( 'mode' );
- $extedit = new ExternalEdit( $article, $mode );
- $extedit->edit();
+ case 'editredlink':
+ if( wfRunHooks( 'CustomEditor', array( $article, $user ) ) ) {
+ $internal = $request->getVal( 'internaledit' );
+ $external = $request->getVal( 'externaledit' );
+ $section = $request->getVal( 'section' );
+ $oldid = $request->getVal( 'oldid' );
+ if( !$this->getVal( 'UseExternalEditor' ) || $action=='submit' || $internal ||
+ $section || $oldid || ( !$user->getOption( 'externaleditor' ) && !$external ) ) {
+ $editor = new EditPage( $article );
+ $editor->submit();
+ } elseif( $this->getVal( 'UseExternalEditor' ) && ( $external || $user->getOption( 'externaleditor' ) ) ) {
+ $mode = $request->getVal( 'mode' );
+ $extedit = new ExternalEdit( $article, $mode );
+ $extedit->edit();
+ }
}
break;
case 'history':
- if( $_SERVER['REQUEST_URI'] == $title->getInternalURL( 'action=history' ) ) {
+ if( $request->getFullRequestURL() == $title->getInternalURL( 'action=history' ) ) {
$output->setSquidMaxage( $this->getVal( 'SquidMaxage' ) );
}
- require_once( 'includes/PageHistory.php' );
$history = new PageHistory( $article );
$history->history();
break;
case 'raw':
- require_once( 'includes/RawPage.php' );
$raw = new RawPage( $article );
$raw->view();
break;
default:
if( wfRunHooks( 'UnknownAction', array( $action, $article ) ) ) {
- $output->errorpage( 'nosuchaction', 'nosuchactiontext' );
+ $output->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
}
- wfProfileOut( 'MediaWiki::performAction' );
- }
+ }
+ wfProfileOut( __METHOD__ );
-
}
}; /* End of class MediaWiki */
-
-?>
\ No newline at end of file
dépôts / lhc / web / wiklou.git / blobdiff