Hooks! Hoooooks!
[lhc/web/wiklou.git] / includes / Title.php
index 0721c1c..0d5d1c7 100644 (file)
@@ -9,6 +9,8 @@
 require_once( 'normal/UtfNormal.php' );
 
 $wgTitleInterwikiCache = array();
+$wgTitleCache = array();
+
 define ( 'GAID_FOR_UPDATE', 1 );
 
 # Title::newFromTitle maintains a cache to avoid
@@ -103,6 +105,7 @@ class Title {
         * @access public
         */
        function newFromText( $text, $defaultNamespace = NS_MAIN ) {
+               global $wgTitleCache;
                $fname = 'Title::newFromText';
                wfProfileIn( $fname );
 
@@ -118,10 +121,9 @@ class Title {
                 *
                 * In theory these are value objects and won't get changed...
                 */
-               static $titleCache = array();
-               if( $defaultNamespace == NS_MAIN && isset( $titleCache[$text] ) ) {
+               if( $defaultNamespace == NS_MAIN && isset( $wgTitleCache[$text] ) ) {
                        wfProfileOut( $fname );
-                       return $titleCache[$text];
+                       return $wgTitleCache[$text];
                }
 
                /**
@@ -135,11 +137,11 @@ class Title {
 
                if( $t->secureAndSplit() ) {
                        if( $defaultNamespace == NS_MAIN ) {
-                               if( count( $titleCache ) >= MW_TITLECACHE_MAX ) {
+                               if( count( $wgTitleCache ) >= MW_TITLECACHE_MAX ) {
                                        # Avoid memory leaks on mass operations...
-                                       $titleCache = array();
+                                       $wgTitleCache = array();
                                }
-                               $titleCache[$text] =& $t;
+                               $wgTitleCache[$text] =& $t;
                        }
                        wfProfileOut( $fname );
                        return $t;
@@ -159,7 +161,6 @@ class Title {
         * @access public
         */
        function newFromURL( $url ) {
-               global $wgLang, $wgServer;
                $t = new Title();
 
                # For compatibility with old buggy URLs. "+" is not valid in titles,
@@ -316,24 +317,8 @@ class Title {
         * @access public
         */
        function legalChars() {
-               # Missing characters:
-               #  * []|# Needed for link syntax
-               #  * % and + are corrupted by Apache when they appear in the path
-               #
-               # % seems to work though
-               #
-               # The problem with % is that URLs are double-unescaped: once by Apache's
-               # path conversion code, and again by PHP. So %253F, for example, becomes "?".
-               # Our code does not double-escape to compensate for this, indeed double escaping
-               # would break if the double-escaped title was passed in the query string
-               # rather than the path. This is a minor security issue because articles can be
-               # created such that they are hard to view or edit. -- TS
-               #
-               # Theoretically 0x80-0x9F of ISO 8859-1 should be disallowed, but
-               # this breaks interlanguage links
-
-               $set = " %!\"$&'()*,\\-.\\/0-9:;=?@A-Z\\\\^_`a-z~\\x80-\\xFF";
-               return $set;
+               global $wgLegalTitleChars;
+               return $wgLegalTitleChars;
        }
 
        /**
@@ -346,7 +331,7 @@ class Title {
         *      search index
         */
        /* static */ function indexTitle( $ns, $title ) {
-               global $wgDBminWordLen, $wgContLang;
+               global $wgContLang;
                require_once( 'SearchEngine.php' );
 
                $lc = SearchEngine::legalSearchChars() . '&#;';
@@ -387,7 +372,7 @@ class Title {
         * @static (arguably)
         * @access public
         */
-       function getInterwikiLink( $key, $transludeonly = false ) {
+       function getInterwikiLink( $key )  {
                global $wgMemc, $wgDBname, $wgInterwikiExpiry, $wgTitleInterwikiCache;
                $fname = 'Title::getInterwikiLink';
 
@@ -483,7 +468,6 @@ class Title {
         * @access public
         */
        function touchArray( $titles, $timestamp = '' ) {
-               global $wgUseFileCache;
 
                if ( count( $titles ) == 0 ) {
                        return;
@@ -492,8 +476,8 @@ class Title {
                if ( $timestamp == '' ) {
                        $timestamp = $dbw->timestamp();
                }
-               $page = $dbw->tableName( 'page' );
                /*
+               $page = $dbw->tableName( 'page' );
                $sql = "UPDATE $page SET page_touched='{$timestamp}' WHERE page_id IN (";
                $first = true;
 
@@ -623,7 +607,7 @@ class Title {
         */
        function getPrefixedText() {
                global $wgContLang;
-               if ( empty( $this->mPrefixedText ) ) {
+               if ( empty( $this->mPrefixedText ) ) { // FIXME: bad usage of empty() ?
                        $s = $this->prefix( $this->mTextform );
                        $s = str_replace( '_', ' ', $s );
                        $this->mPrefixedText = $s;
@@ -675,93 +659,33 @@ class Title {
         * @access public
         */
        function getFullURL( $query = '' ) {
-               global $wgContLang, $wgServer, $wgScript, $wgMakeDumpLinks, $wgArticlePath;
+               global $wgContLang, $wgServer;
 
                if ( '' == $this->mInterwiki ) {
-                       return $wgServer . $this->getLocalUrl( $query );
-               } elseif ( $wgMakeDumpLinks && $wgContLang->getLanguageName( $this->mInterwiki ) ) {
-                       $baseUrl = str_replace( '$1', "../../{$this->mInterwiki}/$1", $wgArticlePath );
-                       $baseUrl = str_replace( '$1', $this->getHashedDirectory() . '/$1', $baseUrl );
+                       $url = $wgServer . $this->getLocalUrl( $query );
                } else {
                        $baseUrl = $this->getInterwikiLink( $this->mInterwiki );
-               }
 
-               $namespace = $wgContLang->getNsText( $this->mNamespace );
-               if ( '' != $namespace ) {
-                       # Can this actually happen? Interwikis shouldn't be parsed.
-                       $namespace .= ':';
-               }
-               $url = str_replace( '$1', $namespace . $this->mUrlform, $baseUrl );
-               if( $query != '' ) {
-                       if( false === strpos( $url, '?' ) ) {
-                               $url .= '?';
-                       } else {
-                               $url .= '&';
+                       $namespace = $wgContLang->getNsText( $this->mNamespace );
+                       if ( '' != $namespace ) {
+                               # Can this actually happen? Interwikis shouldn't be parsed.
+                               $namespace .= ':';
                        }
-                       $url .= $query;
-               }
-               if ( '' != $this->mFragment ) {
-                       $url .= '#' . $this->mFragment;
-               }
-               return $url;
-       }
-
-       /**
-        * Get a relative directory for putting an HTML version of this article into
-        */
-       function getHashedDirectory() {
-               global $wgMakeDumpLinks, $wgInputEncoding;
-               $dbkey = $this->getDBkey();
-
-               # Split into characters
-               if ( $wgInputEncoding == 'UTF-8' ) {
-                       preg_match_all( '/./us', $dbkey, $m );
-               } else {
-                       preg_match_all( '/./s', $dbkey, $m );
-               }
-               $chars = $m[0];
-               $length = count( $chars );
-               $dir = '';
-
-               for ( $i = 0; $i < $wgMakeDumpLinks; $i++ ) {
-                       if ( $i ) {
-                               $dir .= '/';
+                       $url = str_replace( '$1', $namespace . $this->mUrlform, $baseUrl );
+                       if( $query != '' ) {
+                               if( false === strpos( $url, '?' ) ) {
+                                       $url .= '?';
+                               } else {
+                                       $url .= '&';
+                               }
+                               $url .= $query;
                        }
-                       if ( $i >= $length ) {
-                               $dir .= '_';
-                       } elseif ( ord( $chars[$i] ) > 32 ) {
-                               $dir .= strtolower( $chars[$i] );
-                       } else {
-                               $dir .= sprintf( "%02X", ord( $chars[$i] ) );
+                       if ( '' != $this->mFragment ) {
+                               $url .= '#' . $this->mFragment;
                        }
                }
-               return $dir;
-       }
-
-       function getHashedFilename() {
-               $dbkey = $this->getPrefixedDBkey();
-               $mainPage = Title::newMainPage();
-               if ( $mainPage->getPrefixedDBkey() == $dbkey ) {
-                       return 'index.html';
-               }
-
-               $dir = $this->getHashedDirectory();
-
-               # Replace illegal charcters for Windows paths with underscores
-               $friendlyName = strtr( $dbkey, '/\\*?"<>|~', '_________' );
-
-               # Work out lower case form. We assume we're on a system with case-insensitive
-               # filenames, so unless the case is of a special form, we have to disambiguate
-               $lowerCase = $this->prefix( ucfirst( strtolower( $this->getDBkey() ) ) );
-
-               # Make it mostly unique
-               if ( $lowerCase != $friendlyName  ) {
-                       $friendlyName .= '_' . substr(md5( $dbkey ), 0, 4);
-               }
-               # Handle colon specially by replacing it with tilde
-               # Thus we reduce the number of paths with hashes appended
-               $friendlyName = str_replace( ':', '~', $friendlyName );
-               return "$dir/$friendlyName.html";
+               wfRunHooks( 'GetFullURL', array( &$this, &$url, $query ) );
+               return $url;
        }
 
        /**
@@ -773,40 +697,42 @@ class Title {
         * @access public
         */
        function getLocalURL( $query = '' ) {
-               global $wgLang, $wgArticlePath, $wgScript, $wgMakeDumpLinks, $wgServer, $action;
+               global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
 
                if ( $this->isExternal() ) {
-                       return $this->getFullURL();
-               }
-
-               $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
-               if ( $wgMakeDumpLinks ) {
-                       $url = str_replace( '$1', wfUrlencode( $this->getHashedFilename() ), $wgArticlePath );
-               } elseif ( $query == '' ) {
-                       $url = str_replace( '$1', $dbkey, $wgArticlePath );
+                       $url = $this->getFullURL();
                } else {
-                       global $wgActionPaths;
-                       if( !empty( $wgActionPaths ) &&
-                               preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) ) {
-                               $action = urldecode( $matches[2] );
-                               if( isset( $wgActionPaths[$action] ) ) {
-                                       $query = $matches[1];
-                                       if( isset( $matches[4] ) ) $query .= $matches[4];
-                                       $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
-                                       if( $query != '' ) $url .= '?' . $query;
-                                       return $url;
+                       $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
+                       if ( $query == '' ) {
+                               $url = str_replace( '$1', $dbkey, $wgArticlePath );
+                       } else {
+                               global $wgActionPaths;
+                               $url = false;
+                               if( !empty( $wgActionPaths ) &&
+                                       preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) ) 
+                               {
+                                       $action = urldecode( $matches[2] );
+                                       if( isset( $wgActionPaths[$action] ) ) {
+                                               $query = $matches[1];
+                                               if( isset( $matches[4] ) ) $query .= $matches[4];
+                                               $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
+                                               if( $query != '' ) $url .= '?' . $query;
+                                       }
+                               }
+                               if ( $url === false ) {
+                                       if ( $query == '-' ) {
+                                               $query = '';
+                                       }
+                                       $url = "{$wgScript}?title={$dbkey}&{$query}";
                                }
                        }
-                       if ( $query == '-' ) {
-                               $query = '';
+
+                       if ($wgRequest->getText('action') == 'render') {
+                               $url = $wgServer . $url;
                        }
-                       $url = "{$wgScript}?title={$dbkey}&{$query}";
                }
-
-               if ($action == 'render')
-                       return $wgServer . $url;
-               else
-                       return $url;
+               wfRunHooks( 'GetLocalURL', array( &$this, &$url, $query ) );
+               return $url;
        }
 
        /**
@@ -917,13 +843,13 @@ class Title {
        }
 
        /**
-        * Is $wgUser perform $action this page?
+        * Can $wgUser perform $action this page?
         * @param string $action action that permission needs to be checked for
         * @return boolean
         * @access private
         */
        function userCan($action) {
-               $fname = 'Title::userCanEdit';
+               $fname = 'Title::userCan';
                wfProfileIn( $fname );
 
                global $wgUser;
@@ -931,11 +857,14 @@ class Title {
                        wfProfileOut( $fname );
                        return false;
                }
+               // XXX: This is the code that prevents unprotecting a page in NS_MEDIAWIKI
+               // from taking effect -ævar
                if( NS_MEDIAWIKI == $this->mNamespace &&
                    !$wgUser->isAllowed('editinterface') ) {
                        wfProfileOut( $fname );
                        return false;
                }
+               
                if( $this->mDbkeyform == '_' ) {
                        # FIXME: Is this necessary? Shouldn't be allowed anyway...
                        wfProfileOut( $fname );
@@ -977,6 +906,13 @@ class Title {
                        wfProfileOut( $fname );
                        return false;
                }
+               
+               if( $action == 'create' ) {
+                       if( (  $this->isTalkPage() && !$wgUser->isAllowed( 'createtalk' ) ) ||
+                               ( !$this->isTalkPage() && !$wgUser->isAllowed( 'createpage' ) ) ) {
+                               return false;
+                       }
+               }
 
                wfProfileOut( $fname );
                return true;
@@ -1218,7 +1154,6 @@ class Title {
                        return;
                }
 
-               $now = wfTimestampNow();
                $dbw =& wfGetDB( DB_MASTER );
                $success = $dbw->update( 'page',
                        array( /* SET */
@@ -1569,7 +1504,7 @@ class Title {
         * @return mixed true on success, message name on failure
         * @access public
         */
-       function isValidMoveOperation( &$nt, $auth = true, $reason = '' ) {
+       function isValidMoveOperation( &$nt, $auth = true ) {
                global $wgUser;
                if( !$this or !$nt ) {
                        return 'badtitletext';
@@ -1581,7 +1516,6 @@ class Title {
                        return 'immobile_namespace';
                }
 
-               $fname = 'Title::move';
                $oldid = $this->getArticleID();
                $newid = $nt->getArticleID();
 
@@ -1621,7 +1555,7 @@ class Title {
         * @access public
         */
        function moveTo( &$nt, $auth = true, $reason = '' ) {
-               $err = $this->isValidMoveOperation( $nt, $auth, $reason );
+               $err = $this->isValidMoveOperation( $nt, $auth );
                if( is_string( $err ) ) {
                        return $err;
                }
@@ -1680,6 +1614,7 @@ class Title {
                        $u->doUpdate();
                }
 
+               global $wgUser;
                wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
                return true;
        }
@@ -1706,7 +1641,6 @@ class Title {
                $newid = $nt->getArticleID();
                $oldid = $this->getArticleID();
                $dbw =& wfGetDB( DB_MASTER );
-               $links = $dbw->tableName( 'links' );
 
                # Delete the old redirect. We don't save it to history since
                # by definition if we've got here it's rather uninteresting.
@@ -1956,8 +1890,6 @@ class Title {
                global $wgContLang,$wgUser;
 
                $titlekey = $this->getArticleId();
-               $sk =& $wgUser->getSkin();
-               $parents = array();
                $dbr =& wfGetDB( DB_SLAVE );
                $categorylinks = $dbr->tableName( 'categorylinks' );
 
@@ -1990,8 +1922,7 @@ class Title {
                $parents = $this->getParentCategories();
 
                if($parents != '') {
-                       foreach($parents as $parent => $current)
-                       {
+                       foreach($parents as $parent => $current) {
                                if ( array_key_exists( $parent, $children ) ) {
                                        # Circular reference
                                        $stack[$parent] = array();
@@ -2063,7 +1994,7 @@ class Title {
         * @param Title $title
         * @return bool
         */
-       function equals( &$title ) {
+       function equals( $title ) {
                return $this->getInterwiki() == $title->getInterwiki()
                        && $this->getNamespace() == $title->getNamespace()
                        && $this->getDbkey() == $title->getDbkey();
@@ -2080,14 +2011,12 @@ class Title {
        /**
         * Should a link should be displayed as a known link, just based on its title?
         *
-        * Currently, a self-link with a fragment, special pages and image pages are in
-        * this category. Special pages never exist in the database. Some images do not
-        * have description pages in the database, but the description page contains
-        * useful history information that the user may want to link to.
+        * Currently, a self-link with a fragment and special pages are in
+        * this category. Special pages never exist in the database.
         */
        function isAlwaysKnown() {
                return  $this->isExternal() || ( 0 == $this->mNamespace && "" == $this->mDbkeyform )
-                 || NS_SPECIAL == $this->mNamespace || NS_IMAGE == $this->mNamespace;
+                 || NS_SPECIAL == $this->mNamespace;
        }
 
        /**
@@ -2110,7 +2039,6 @@ class Title {
                        return;
                }
 
-               $arr = array();
                $toucharr = array();
                while( $row = $dbw->fetchObject( $res ) ) {
                        $toucharr[] = $row->pl_from;