<?php
/**
- * Copyright (C) 2004 Gabriel Wicke <gw@wikidev.net>
- * http://www.aulinx.de/
+ * Copyright (C) 2004 Gabriel Wicke <wicke@wikidev.net>
+ * http://wikidev.net/
* Based on PageHistory and SpecialExport
- *
+ *
* License: GPL (http://www.gnu.org/copyleft/gpl.html)
*
- * @author Gabriel Wicke <gw@wikidev.net>
+ * @author Gabriel Wicke <wicke@wikidev.net>
*/
/**
* @todo document
*/
class RawPage {
+ var $mArticle, $mTitle, $mRequest;
+ var $mOldId, $mGen, $mCharset;
+ var $mSmaxage, $mMaxage;
+ var $mContentType, $mExpandTemplates;
+
+ function __construct( &$article, $request = false ) {
+ global $wgRequest, $wgInputEncoding, $wgSquidMaxage, $wgJsMimeType;
- function RawPage( $article ) {
- global $wgRequest, $wgInputEncoding, $wgSquidMaxage;
- $allowedCTypes = array('text/x-wiki', 'text/javascript', 'text/css', 'application/x-zope-edit');
+ $allowedCTypes = array('text/x-wiki', $wgJsMimeType, 'text/css', 'application/x-zope-edit');
$this->mArticle =& $article;
$this->mTitle =& $article->mTitle;
-
- $ctype = $wgRequest->getText( 'ctype' );
- $charset = $wgRequest->getText( 'charset' );
- $smaxage = $wgRequest->getText( 'smaxage' );
- $maxage = $wgRequest->getText( 'maxage' );
- $this->mOldId = $wgRequest->getInt( 'oldid' );
+
+ if ( $request === false ) {
+ $this->mRequest =& $wgRequest;
+ } else {
+ $this->mRequest = $request;
+ }
+
+ $ctype = $this->mRequest->getVal( 'ctype' );
+ $smaxage = $this->mRequest->getIntOrNull( 'smaxage', $wgSquidMaxage );
+ $maxage = $this->mRequest->getInt( 'maxage', $wgSquidMaxage );
+ $this->mExpandTemplates = $this->mRequest->getVal( 'templates' ) === 'expand';
+ $this->mUseMessageCache = $this->mRequest->getBool( 'usemsgcache' );
+
+ $oldid = $this->mRequest->getInt( 'oldid' );
+ switch ( $wgRequest->getText( 'direction' ) ) {
+ case 'next':
+ # output next revision, or nothing if there isn't one
+ if ( $oldid ) {
+ $oldid = $this->mTitle->getNextRevisionId( $oldid );
+ }
+ $oldid = $oldid ? $oldid : -1;
+ break;
+ case 'prev':
+ # output previous revision, or nothing if there isn't one
+ if ( ! $oldid ) {
+ # get the current revision so we can get the penultimate one
+ $this->mArticle->getTouched();
+ $oldid = $this->mArticle->mLatest;
+ }
+ $prev = $this->mTitle->getPreviousRevisionId( $oldid );
+ $oldid = $prev ? $prev : -1 ;
+ break;
+ case 'cur':
+ $oldid = 0;
+ break;
+ }
+ $this->mOldId = $oldid;
+
# special case for 'generated' raw things: user css/js
- $gen = $wgRequest->getText( 'gen' );
+ $gen = $this->mRequest->getVal( 'gen' );
+
if($gen == 'css') {
$this->mGen = $gen;
- if($smaxage == '') $smaxage = $wgSquidMaxage;
+ if( is_null( $smaxage ) ) $smaxage = $wgSquidMaxage;
if($ctype == '') $ctype = 'text/css';
- } else if ($gen == 'js') {
+ } elseif ($gen == 'js') {
$this->mGen = $gen;
- if($smaxage == '') $smaxage = $wgSquidMaxage;
- if($ctype == '') $ctype = 'text/javascript';
+ if( is_null( $smaxage ) ) $smaxage = $wgSquidMaxage;
+ if($ctype == '') $ctype = $wgJsMimeType;
} else {
$this->mGen = false;
}
- $this->mCharset = !empty($charset) ? $charset : $wgInputEncoding;
- $this->mSmaxage = ($smaxage != '') ? $smaxage : 0;
- $this->mMaxage = ($maxage != '') ? $maxage : 86400;
- if(empty($ctype) or !in_array($ctype, $allowedCTypes)) {
+ $this->mCharset = $wgInputEncoding;
+ $this->mSmaxage = intval( $smaxage );
+ $this->mMaxage = $maxage;
+
+ // Output may contain user-specific data; vary for open sessions
+ $this->mPrivateCache = ( $this->mSmaxage == 0 ) ||
+ ( session_id() != '' );
+
+ if ( $ctype == '' or ! in_array( $ctype, $allowedCTypes ) ) {
$this->mContentType = 'text/x-wiki';
} else {
$this->mContentType = $ctype;
}
}
-
+
function view() {
- global $wgUser, $wgOut;
+ global $wgOut, $wgScript;
+
+ if( isset( $_SERVER['SCRIPT_URL'] ) ) {
+ # Normally we use PHP_SELF to get the URL to the script
+ # as it was called, minus the query string.
+ #
+ # Some sites use Apache rewrite rules to handle subdomains,
+ # and have PHP set up in a weird way that causes PHP_SELF
+ # to contain the rewritten URL instead of the one that the
+ # outside world sees.
+ #
+ # If in this mode, use SCRIPT_URL instead, which mod_rewrite
+ # provides containing the "before" URL.
+ $url = $_SERVER['SCRIPT_URL'];
+ } else {
+ $url = $_SERVER['PHP_SELF'];
+ }
+
+ $ua = @$_SERVER['HTTP_USER_AGENT'];
+ if( strcmp( $wgScript, $url ) && strpos( $ua, 'MSIE' ) !== false ) {
+ # Internet Explorer will ignore the Content-Type header if it
+ # thinks it sees a file extension it recognizes. Make sure that
+ # all raw requests are done through the script node, which will
+ # have eg '.php' and should remain safe.
+ #
+ # We used to redirect to a canonical-form URL as a general
+ # backwards-compatibility / good-citizen nice thing. However
+ # a lot of servers are set up in buggy ways, resulting in
+ # redirect loops which hang the browser until the CSS load
+ # times out.
+ #
+ # Just return a 403 Forbidden and get it over with.
+ wfHttpError( 403, 'Forbidden',
+ 'Raw pages must be accessed through the primary script entry point.' );
+ return;
+ }
+
header( "Content-type: ".$this->mContentType.'; charset='.$this->mCharset );
# allow the client to cache this for 24 hours
- header( 'Cache-Control: s-maxage='.$this->mSmaxage.', max-age='.$this->mMaxage );
+ $mode = $this->mPrivateCache ? 'private' : 'public';
+ header( 'Cache-Control: '.$mode.', s-maxage='.$this->mSmaxage.', max-age='.$this->mMaxage );
+ $text = $this->getRawText();
+
+ if( !wfRunHooks( 'RawPageViewBeforeOutput', array( &$this, &$text ) ) ) {
+ wfDebug( __METHOD__ . ': RawPageViewBeforeOutput hook broke raw page output.' );
+ }
+
+ echo $text;
+ $wgOut->disable();
+ }
+
+ function getRawText() {
+ global $wgUser, $wgOut, $wgRequest;
if($this->mGen) {
$sk = $wgUser->getSkin();
$sk->initPage($wgOut);
if($this->mGen == 'css') {
- echo $sk->getUserStylesheet();
+ return $sk->getUserStylesheet();
} else if($this->mGen == 'js') {
- echo $sk->getUserJs();
+ return $sk->getUserJs();
}
} else {
- echo $this->getrawtext();
+ return $this->getArticleText();
}
- $wgOut->disable();
}
-
- function getrawtext () {
- global $wgInputEncoding, $wgLang;
- $fname = 'RawPage::getrawtext';
-
- if( !$this->mTitle ) return '';
- $dbr =& wfGetDB( DB_SLAVE );
- extract( $dbr->tableNames( 'cur', 'old' ) );
-
- $t = $dbr->strencode( $this->mTitle->getDBKey() );
- $ns = $this->mTitle->getNamespace();
- # special case
- if($ns == NS_MEDIAWIKI) {
- $rawtext = wfMsg($t);
- if($wgInputEncoding != $this->mCharset)
- $rawtext = $wgLang->iconv( $wgInputEncoding, $this->mCharset, $rawtext );
- return $rawtext;
+
+ function getArticleText() {
+ $found = false;
+ $text = '';
+ if( $this->mTitle ) {
+ // If it's a MediaWiki message we can just hit the message cache
+ if ( $this->mUseMessageCache && $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
+ $key = $this->mTitle->getDBkey();
+ $text = wfMsgForContentNoTrans( $key );
+ # If the message doesn't exist, return a blank
+ if( wfEmptyMsg( $key, $text ) )
+ $text = '';
+ $found = true;
+ } else {
+ // Get it from the DB
+ $rev = Revision::newFromTitle( $this->mTitle, $this->mOldId );
+ if ( $rev ) {
+ $lastmod = wfTimestamp( TS_RFC2822, $rev->getTimestamp() );
+ header( "Last-modified: $lastmod" );
+ $text = $rev->getText();
+ $found = true;
+ }
+ }
}
- # else get it from the DB
- if(!empty($this->mOldId)) {
- $sql = "SELECT old_text AS text,old_timestamp AS timestamp,".
- "old_user AS user,old_flags AS flags FROM $old " .
- "WHERE old_id={$this->mOldId}";
- } else {
- $sql = "SELECT cur_id as id,cur_timestamp as timestamp,cur_user as user,cur_user_text as user_text," .
- "cur_restrictions as restrictions,cur_comment as comment,cur_text as text FROM $cur " .
- "WHERE cur_namespace=$ns AND cur_title='$t'";
+
+ # Bad title or page does not exist
+ if( !$found && $this->mContentType == 'text/x-wiki' ) {
+ # Don't return a 404 response for CSS or JavaScript;
+ # 404s aren't generally cached and it would create
+ # extra hits when user CSS/JS are on and the user doesn't
+ # have the pages.
+ header( "HTTP/1.0 404 Not Found" );
}
- $res = $dbr->query( $sql, $fname );
- if( $s = $dbr->fetchObject( $res ) ) {
- $rawtext = Article::getRevisionText( $s, "" );
- if($wgInputEncoding != $this->mCharset)
- $rawtext = $wgLang->iconv( $wgInputEncoding, $this->mCharset, $rawtext );
- header( 'Last-modified: '.gmdate( "D, j M Y H:i:s", wfTimestamp2Unix( $s->timestamp )).' GMT' );
- return $rawtext;
- } else {
- return '';
+
+ // Special-case for empty CSS/JS
+ //
+ // Internet Explorer for Mac handles empty files badly;
+ // particularly so when keep-alive is active. It can lead
+ // to long timeouts as it seems to sit there waiting for
+ // more data that never comes.
+ //
+ // Give it a comment...
+ if( strlen( $text ) == 0 &&
+ ($this->mContentType == 'text/css' ||
+ $this->mContentType == 'text/javascript' ) ) {
+ return "/* Empty */";
}
+
+ return $this->parseArticleText( $text );
+ }
+
+ function parseArticleText( $text ) {
+ if ( $text === '' )
+ return '';
+ else
+ if ( $this->mExpandTemplates ) {
+ global $wgParser;
+ return $wgParser->preprocess( $text, $this->mTitle, new ParserOptions() );
+ } else
+ return $text;
}
}
?>