* Fixed a bug where the watchlist count without talk pages would be off by a
[lhc/web/wiklou.git] / includes / Title.php
index 288a5f2..f8d5f0b 100644 (file)
@@ -47,6 +47,7 @@ class Title {
        var $mPrefixedText;       # Text form including namespace/interwiki, initialised on demand
        var $mDefaultNamespace;   # Namespace index when there is no namespace
                               # Zero except in {{transclusion}} tags
+       var $mWatched;            # Is $wgUser watching this page? NULL if unfilled, accessed through userIsWatching()
        /**#@-*/
        
 
@@ -64,6 +65,7 @@ class Title {
                # Dont change the following, NS_MAIN is hardcoded in several place
                # See bug #696
                $this->mDefaultNamespace = NS_MAIN;
+               $this->mWatched = NULL;
        }
 
        /**
@@ -120,19 +122,9 @@ class Title {
                }
 
                /**
-                * Convert things like é into real text...
+                * Convert things like é ā or 〗 into real text...
                 */
-               global $wgInputEncoding;
-               $filteredText = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
-
-               /**
-                * Convert things like ā or 〗 into real text...
-                * WARNING: Not friendly to internal links on a latin-1 wiki.
-                */
-               $filteredText = wfMungeToUtf8( $filteredText );
-               
-               # What was this for? TS 2004-03-03
-               # $text = urldecode( $text );
+               $filteredText = Sanitizer::decodeCharReferences( $text );
 
                $t =& new Title();
                $t->mDbkeyform = str_replace( ' ', '_', $filteredText );
@@ -619,50 +611,64 @@ class Title {
         * @access public
         */
        function getFullURL( $query = '' ) {
-               global $wgContLang, $wgServer, $wgScript;
+               global $wgContLang, $wgServer, $wgScript, $wgMakeDumpLinks, $wgArticlePath;
 
                if ( '' == $this->mInterwiki ) {
                        return $wgServer . $this->getLocalUrl( $query );
-               } else {
+               } elseif ( $wgMakeDumpLinks && $wgContLang->getLanguageName( $this->mInterwiki ) ) {
+                       $baseUrl = str_replace( '$1', "../../{$this->mInterwiki}/$1", $wgArticlePath );
+                       $baseUrl = str_replace( '$1', $this->getHashedDirectory() . '/$1', $baseUrl );
+               } else {        
                        $baseUrl = $this->getInterwikiLink( $this->mInterwiki );
-                       $namespace = $wgContLang->getNsText( $this->mNamespace );
-                       if ( '' != $namespace ) {
-                               # Can this actually happen? Interwikis shouldn't be parsed.
-                               $namepace .= ':';
-                       }
-                       $url = str_replace( '$1', $namespace . $this->mUrlform, $baseUrl );
-                       if( $query != '' ) {
-                               if( false === strpos( $url, '?' ) ) {
-                                       $url .= '?';
-                               } else {
-                                       $url .= '&';
-                               }
-                               $url .= $query;
-                       }
-                       if ( '' != $this->mFragment ) {
-                               $url .= '#' . $this->mFragment;
+               }
+               
+               $namespace = $wgContLang->getNsText( $this->mNamespace );
+               if ( '' != $namespace ) {
+                       # Can this actually happen? Interwikis shouldn't be parsed.
+                       $namepace .= ':';
+               }
+               $url = str_replace( '$1', $namespace . $this->mUrlform, $baseUrl );
+               if( $query != '' ) {
+                       if( false === strpos( $url, '?' ) ) {
+                               $url .= '?';
+                       } else {
+                               $url .= '&';
                        }
-                       return $url;
+                       $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() {
-               $dbkey = $this->getPrefixedDBkey();
-               if ( strlen( $dbkey ) < 2 ) {
-                       $dbkey = sprintf( "%2s", $dbkey );
+               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<=1; $i++ ) {
+
+               for ( $i = 0; $i < $wgMakeDumpLinks; $i++ ) {
                        if ( $i ) {
                                $dir .= '/';
                        }
-                       if ( ord( $dbkey{$i} ) < 128 && ord( $dbkey{$i} ) > 32 ) {
-                               $dir .= strtolower( $dbkey{$i} );
+                       if ( $i >= $length ) { 
+                               $dir .= '_';
+                       } elseif ( ord( $chars[$i] ) > 32 ) {
+                               $dir .= strtolower( $chars[$i] );
                        } else {
-                               $dir .= sprintf( "%02X", ord( $dbkey{$i} ) );
+                               $dir .= sprintf( "%02X", ord( $chars[$i] ) );
                        }
                }
                return $dir;
@@ -670,8 +676,27 @@ class Title {
        
        function getHashedFilename() {
                $dbkey = $this->getPrefixedDBkey();
+               $mainPage = Title::newMainPage();
+               if ( $mainPage->getPrefixedDBkey() == $dbkey ) {
+                       return 'index.html';
+               }
+
                $dir = $this->getHashedDirectory();
-               $friendlyName = strtr( $dbkey, '/\\:*?"<>|', '_________' );
+
+               # 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";       
        }
        
@@ -695,8 +720,9 @@ class Title {
                } elseif ( $query == '' ) {
                        $url = str_replace( '$1', $dbkey, $wgArticlePath );
                } else {
-                       if( preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) ) {
-                               global $wgActionPaths;
+                       global $wgActionPaths;
+                       if( !empty( $wgActionPaths ) &&
+                               preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) ) {
                                $action = urldecode( $matches[2] );
                                if( isset( $wgActionPaths[$action] ) ) {
                                        $query = $matches[1];
@@ -811,10 +837,14 @@ class Title {
        function userIsWatching() {
                global $wgUser;
 
-               if ( -1 == $this->mNamespace ) { return false; }
-               if ( 0 == $wgUser->getID() ) { return false; }
-
-               return $wgUser->isWatched( $this );
+               if ( is_null( $this->mWatched ) ) {
+                       if ( -1 == $this->mNamespace || 0 == $wgUser->getID()) {
+                               $this->mWatched = false;
+                       } else {
+                               $this->mWatched = $wgUser->isWatched( $this );
+                       }
+               }
+               return $this->mWatched;
        }
 
        /**
@@ -863,6 +893,10 @@ class Title {
                }
 
                foreach( $this->getRestrictions($action) as $right ) {
+                       // Backwards compatibility, rewrite sysop -> protect
+                       if ( $right == 'sysop' ) {
+                               $right = 'protect';
+                       }
                        if( '' != $right && !$wgUser->isAllowed( $right ) ) {
                                wfProfileOut( $fname );
                                return false;
@@ -924,19 +958,19 @@ class Title {
                        /** If anon users can create an account,
                            they need to reach the login page first! */
                        if( $wgUser->isAllowed( 'createaccount' )
-                           && $this->mId == NS_SPECIAL
+                           && $this->getNamespace() == NS_SPECIAL
                            && $this->getText() == 'Userlogin' ) {
                                return true;
                        }
 
                        /** some pages are explicitly allowed */
                        $name = $this->getPrefixedText();
-                       if( in_array( $name, $wgWhitelistRead ) ) {
+                       if( $wgWhitelistRead && in_array( $name, $wgWhitelistRead ) ) {
                                return true;
                        }
                        
                        # Compatibility with old settings
-                       if( $this->getNamespace() == NS_MAIN ) {
+                       if( $wgWhitelistRead && $this->getNamespace() == NS_MAIN ) {
                                if( in_array( ':' . $name, $wgWhitelistRead ) ) {
                                        return true;
                                }
@@ -1038,9 +1072,13 @@ class Title {
         */
        function isDeleted() {
                $fname = 'Title::isDeleted';
-               $dbr =& wfGetDB( DB_SLAVE );
-               $n = $dbr->selectField( 'archive', 'COUNT(*)', array( 'ar_namespace' => $this->getNamespace(), 
-                       'ar_title' => $this->getDBkey() ), $fname );
+               if ( $this->getNamespace() < 0 ) {
+                       $n = 0;
+               } else {
+                       $dbr =& wfGetDB( DB_SLAVE );
+                       $n = $dbr->selectField( 'archive', 'COUNT(*)', array( 'ar_namespace' => $this->getNamespace(), 
+                               'ar_title' => $this->getDBkey() ), $fname );
+               }
                return (int)$n;
        }
 
@@ -1345,16 +1383,21 @@ class Title {
                } else {
                        $db =& wfGetDB( DB_SLAVE );
                }
-               $page = $db->tableName( 'page' );
-               $links = $db->tableName( 'links' );
-
-               $sql = "SELECT page_namespace,page_title,page_id FROM $page,$links WHERE l_from=page_id AND l_to={$id} $options";
-               $res = $db->query( $sql, 'Title::getLinksTo' );
+               
+               $res = $db->select( array( 'page', 'pagelinks' ),
+                       array( 'page_namespace', 'page_title', 'page_id' ),
+                       array(
+                               'pl_from=page_id',
+                               'pl_namespace' => $this->getNamespace(),
+                               'pl_title'     => $this->getDbKey() ),
+                       'Title::getLinksTo',
+                       $options );
+               
                $retVal = array();
                if ( $db->numRows( $res ) ) {
                        while ( $row = $db->fetchObject( $res ) ) {
                                if ( $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title ) ) {
-                                       $wgLinkCache->addGoodLink( $row->page_id, $titleObj->getPrefixedDBkey() );
+                                       $wgLinkCache->addGoodLinkObj( $row->page_id, $titleObj );
                                        $retVal[] = $titleObj;
                                }
                        }
@@ -1363,42 +1406,6 @@ class Title {
                return $retVal;
        }
 
-       /**
-        * Get an array of Title objects linking to this non-existent title.
-        * - Also stores the IDs in the link cache.
-        *
-        * @param string $options may be FOR UPDATE 
-        * @return array the Title objects linking here
-        * @access public
-        */
-       function getBrokenLinksTo( $options = '' ) {
-               global $wgLinkCache;
-               
-               if ( $options ) {
-                       $db =& wfGetDB( DB_MASTER );
-               } else {
-                       $db =& wfGetDB( DB_SLAVE );
-               }
-               $page = $db->tableName( 'page' );
-               $brokenlinks = $db->tableName( 'brokenlinks' );
-               $encTitle = $db->strencode( $this->getPrefixedDBkey() );
-
-               $sql = "SELECT page_namespace,page_title,page_id FROM $brokenlinks,$page " .
-                 "WHERE bl_from=page_id AND bl_to='$encTitle' $options";
-               $res = $db->query( $sql, "Title::getBrokenLinksTo" );
-               $retVal = array();
-               if ( $db->numRows( $res ) ) {
-                       while ( $row = $db->fetchObject( $res ) ) {
-                               $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title );
-                               $wgLinkCache->addGoodLink( $row->page_id, $titleObj->getPrefixedDBkey() );
-                               $retVal[] = $titleObj;
-                       }
-               }
-               $db->freeResult( $res );
-               return $retVal;
-       }
-
-
        /**
         * Get an array of Title objects referring to non-existent articles linked from this page
         *
@@ -1414,16 +1421,25 @@ class Title {
                } else {
                        $db =& wfGetDB( DB_SLAVE );
                }
-               $page = $db->tableName( 'page' );
-               $brokenlinks = $db->tableName( 'brokenlinks' );
-               $id = $this->getArticleID();
-
-               $sql = "SELECT bl_to FROM $brokenlinks WHERE bl_from=$id $options";
-               $res = $db->query( $sql, "Title::getBrokenLinksFrom" );
+               
+               $res = $db->safeQuery(
+                         "SELECT pl_namespace, pl_title
+                            FROM !
+                       LEFT JOIN !
+                              ON pl_namespace=page_namespace
+                             AND pl_title=page_title
+                           WHERE pl_from=?
+                             AND page_namespace IS NULL
+                                 !",
+                       $db->tableName( 'pagelinks' ),
+                       $db->tableName( 'page' ),
+                       $this->getArticleId(),
+                       $options );
+               
                $retVal = array();
                if ( $db->numRows( $res ) ) {
                        while ( $row = $db->fetchObject( $res ) ) {
-                               $retVal[] = Title::newFromText( $row->bl_to );
+                               $retVal[] = Title::makeTitle( $row->pl_namespace, $row->pl_title );
                        }
                }
                $db->freeResult( $res );
@@ -1520,18 +1536,22 @@ class Title {
                if( is_string( $err ) ) {
                        return $err;
                }
+               
+               $pageid = $this->getArticleID();
                if( $nt->exists() ) {
                        $this->moveOverExistingRedirect( $nt, $reason );
+                       $pageCountChange = 0;
                } else { # Target didn't exist, do normal move.
                        $this->moveToNewTitle( $nt, $newid, $reason );
+                       $pageCountChange = 1;
                }
+               $redirid = $this->getArticleID();
 
                # Fixing category links (those without piped 'alternate' names) to be sorted under the new title
-               
                $dbw =& wfGetDB( DB_MASTER );
                $categorylinks = $dbw->tableName( 'categorylinks' );
                $sql = "UPDATE $categorylinks SET cl_sortkey=" . $dbw->addQuotes( $nt->getPrefixedText() ) .
-                       " WHERE cl_from=" . $dbw->addQuotes( $this->getArticleID() ) .
+                       " WHERE cl_from=" . $dbw->addQuotes( $pageid ) .
                        " AND cl_sortkey=" . $dbw->addQuotes( $this->getPrefixedText() );
                $dbw->query( $sql, 'SpecialMovepage::doSubmit' );
 
@@ -1547,12 +1567,31 @@ class Title {
                }
 
                # Update search engine
-               $u = new SearchUpdate( $oldid, $nt->getPrefixedDBkey() );
+               $u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
                $u->doUpdate();
-               $u = new SearchUpdate( $newid, $this->getPrefixedDBkey(), '' );
+               $u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
                $u->doUpdate();
+               
+               # Update site_stats
+               if ( $this->getNamespace() == NS_MAIN and $nt->getNamespace() != NS_MAIN ) {
+                       # Moved out of main namespace
+                       # not viewed, edited, removing
+                       $u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange); 
+               } elseif ( $this->getNamespace() != NS_MAIN and $nt->getNamespace() == NS_MAIN ) {
+                       # Moved into main namespace
+                       # not viewed, edited, adding
+                       $u = new SiteStatsUpdate( 0, 1, +1, $pageCountChange ); 
+               } elseif ( $pageCountChange ) {
+                       # Added redirect
+                       $u = new SiteStatsUpdate( 0, 0, 0, 1 );
+               } else{
+                       $u = false;
+               }
+               if ( $u ) {
+                       $u->doUpdate();
+               }
 
-               wfRunHooks( 'TitleMoveComplete', array(&$this, &$nt, &$wgUser, $oldid, $newid) );
+               wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
                return true;
        }
        
@@ -1588,7 +1627,7 @@ class Title {
                
                # Save a null revision in the page's history notifying of the move
                $nullRevision = Revision::newNullRevision( $dbw, $oldid,
-                       wfMsg( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() ),
+                       wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() ),
                        true );
                $nullRevId = $nullRevision->insertOn( $dbw );
                
@@ -1621,54 +1660,15 @@ class Title {
                $log = new LogPage( 'move' );
                $log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText() ) );
                
-               # Swap links
-               
-               # Load titles and IDs
-               $linksToOld = $this->getLinksTo( 'FOR UPDATE' );
-               $linksToNew = $nt->getLinksTo( 'FOR UPDATE' );
-               
-               # Delete them all
-               $sql = "DELETE FROM $links WHERE l_to=$oldid OR l_to=$newid";
-               $dbw->query( $sql, $fname );
-
-               # Reinsert
-               if ( count( $linksToOld ) || count( $linksToNew )) {
-                       $sql = "INSERT INTO $links (l_from,l_to) VALUES ";
-                       $first = true;
-
-                       # Insert links to old title
-                       foreach ( $linksToOld as $linkTitle ) {
-                               if ( $first ) {
-                                       $first = false;
-                               } else {
-                                       $sql .= ',';
-                               }
-                               $id = $linkTitle->getArticleID();
-                               $sql .= "($id,$newid)";
-                       }
-
-                       # Insert links to new title
-                       foreach ( $linksToNew as $linkTitle ) {
-                               if ( $first ) {
-                                       $first = false;
-                               } else {
-                                       $sql .= ',';
-                               }
-                               $id = $linkTitle->getArticleID();
-                               $sql .= "($id, $oldid)";
-                       }
-
-                       $dbw->query( $sql, $fname );
-               }
-
                # Now, we record the link from the redirect to the new title.
                # It should have no other outgoing links...
-               $dbw->delete( 'links', array( 'l_from' => $newid ) );
-               $dbw->insert( 'links', array( 'l_from' => $newid, 'l_to' => $oldid ) );
-               
-               # Clear linkscc
-               LinkCache::linksccClearLinksTo( $oldid );
-               LinkCache::linksccClearLinksTo( $newid );
+               $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), $fname );
+               $dbw->insert( 'pagelinks',
+                       array(
+                               'pl_from'      => $newid,
+                               'pl_namespace' => $nt->getNamespace(),
+                               'pl_title'     => $nt->getDbKey() ),
+                       $fname );
                
                # Purge squid
                if ( $wgUseSquid ) {
@@ -1702,7 +1702,7 @@ class Title {
 
                # Save a null revision in the page's history notifying of the move
                $nullRevision = Revision::newNullRevision( $dbw, $oldid,
-                       wfMsg( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() ),
+                       wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() ),
                        true );
                $nullRevId = $nullRevision->insertOn( $dbw );
                
@@ -1736,20 +1736,20 @@ class Title {
                $log = new LogPage( 'move' );
                $log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText()) );
 
-               # Purge squid and linkscc as per article creation
+               # Purge caches as per article creation
                Article::onArticleCreate( $nt );
 
-               # Any text links to the old title must be reassigned to the redirect
-               $dbw->update( 'links', array( 'l_to' => $newid ), array( 'l_to' => $oldid ), $fname );
-               LinkCache::linksccClearLinksTo( $oldid );
-
                # Record the just-created redirect's linking to the page
-               $dbw->insert( 'links', array( 'l_from' => $newid, 'l_to' => $oldid ), $fname );
+               $dbw->insert( 'pagelinks',
+                       array(
+                               'pl_from'      => $newid,
+                               'pl_namespace' => $nt->getNamespace(),
+                               'pl_title'     => $nt->getDBkey() ),
+                       $fname );
 
                # Non-existent target may have had broken links to it; these must
-               # now be removed and made into good links.
-               $update = new LinksUpdate( $oldid, $nt->getPrefixedDBkey() );
-               $update->fixBrokenLinks();
+               # now be touched to update link coloring.
+               $nt->touchLinks();
 
                # Purge old title from squid
                # The new title, and links to the new title, are purged in Article::onArticleCreate()
@@ -1839,21 +1839,13 @@ class Title {
                $article->updateRevisionOn( $dbw, $revision, 0 );
                
                # Link table
-               if ( $dest->getArticleID() ) {
-                       $dbw->insert( 'links', 
-                               array(
-                                       'l_to' => $dest->getArticleID(),
-                                       'l_from' => $newid
-                               ), $fname 
-                       );
-               } else {
-                       $dbw->insert( 'brokenlinks', 
-                               array( 
-                                       'bl_to' => $dest->getPrefixedDBkey(),
-                                       'bl_from' => $newid
-                               ), $fname
-                       );
-               }
+               $dbw->insert( 'pagelinks', 
+                       array(
+                               'pl_from'      => $newid,
+                               'pl_namespace' => $dest->getNamespace(),
+                               'pl_title'     => $dest->getDbKey()
+                       ), $fname 
+               );
 
                Article::onArticleCreate( $this );
                return true;
@@ -1999,11 +1991,40 @@ class Title {
         * 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.
-        * 
         */
        function isAlwaysKnown() {
-               return ( 0 == $this->mNamespace && "" == $this->mDbkeyform ) 
+               return  $this->isExternal() || ( 0 == $this->mNamespace && "" == $this->mDbkeyform ) 
                  || NS_SPECIAL == $this->mNamespace || NS_IMAGE == $this->mNamespace;
        }
+
+       /**
+        * Update page_touched timestamps on pages linking to this title.
+        * In principal, this could be backgrounded and could also do squid
+        * purging.
+        */
+       function touchLinks() {
+               $fname = 'Title::touchLinks';
+
+               $dbw =& wfGetDB( DB_MASTER );
+               
+               $res = $dbw->select( 'pagelinks',
+                       array( 'pl_from' ),
+                       array(
+                               'pl_namespace' => $this->getNamespace(),
+                               'pl_title'     => $this->getDbKey() ), 
+                       $fname );
+               if ( 0 == $dbw->numRows( $res ) ) {
+                       return;
+               }
+
+               $arr = array();
+               $toucharr = array();
+               while( $row = $dbw->fetchObject( $res ) ) {
+                       $toucharr[] = $row->pl_from;
+               }
+               
+               $dbw->update( 'page', /* SET */ array( 'page_touched' => $dbw->timestamp() ), 
+                                                       /* WHERE */ array( 'page_id' => $toucharr ),$fname);
+       }
 }
 ?>