Merge "Fix AbstractBlock param types in documentation"

[lhc/web/wiklou.git] / includes / WikiMap.php

diff --git a/includes/WikiMap.php b/includes/WikiMap.php
index 9dc3bfe..23b0e3e 100644 (file)
--- a/includes/WikiMap.php
+++ b/includes/WikiMap.php
@@ -196,7 +196,8 @@ class WikiMap {
                                $infoMap = [];
                                // Make sure at least the current wiki is set, for simple configurations.
                                // This also makes it the first in the map, which is useful for common cases.
-                               $infoMap[wfWikiID()] = [
+                               $wikiId = self::getWikiIdFromDbDomain( self::getCurrentWikiDbDomain() );
+                               $infoMap[$wikiId] = [
                                        'url' => $wgCanonicalServer,
                                        'parts' => wfParseUrl( $wgCanonicalServer )
                                ];
@@ -220,19 +221,29 @@ class WikiMap {
         * @since 1.30
         */
        public static function getWikiFromUrl( $url ) {
+               global $wgCanonicalServer;
+
+               if ( strpos( $url, "$wgCanonicalServer/" ) === 0 ) {
+                       // Optimisation: Handle the the common case.
+                       // (Duplicates self::getCanonicalServerInfoForAllWikis)
+                       return self::getWikiIdFromDbDomain( self::getCurrentWikiDbDomain() );
+               }
+
                $urlPartsCheck = wfParseUrl( $url );
                if ( $urlPartsCheck === false ) {
                        return false;
                }
 
-               $urlPartsCheck = array_intersect_key( $urlPartsCheck, [ 'host' => 1, 'port' => 1 ] );
+               static $relevantKeys = [ 'host' => 1, 'port' => 1 ];
+               $urlPartsCheck = array_intersect_key( $urlPartsCheck, $relevantKeys );
+
                foreach ( self::getCanonicalServerInfoForAllWikis() as $wikiId => $info ) {
                        $urlParts = $info['parts'];
                        if ( $urlParts === false ) {
                                continue; // sanity
                        }
 
-                       $urlParts = array_intersect_key( $urlParts, [ 'host' => 1, 'port' => 1 ] );
+                       $urlParts = array_intersect_key( $urlParts, $relevantKeys );
                        if ( $urlParts == $urlPartsCheck ) {
                                return $wikiId;
                        }
@@ -244,18 +255,71 @@ class WikiMap {
        /**
         * Get the wiki ID of a database domain
         *
-        * This is like DatabaseDomain::getId() without encoding (for legacy reasons)
+        * This is like DatabaseDomain::getId() without encoding (for legacy reasons) and
+        * without the schema if it is the generic installer default of "mediawiki"/"dbo"
+        *
+        * @see $wgDBmwschema
+        * @see PostgresInstaller
+        * @see MssqlInstaller
         *
         * @param string|DatabaseDomain $domain
         * @return string
+        * @since 1.31
         */
-       public static function getWikiIdFromDomain( $domain ) {
-               if ( !( $domain instanceof DatabaseDomain ) ) {
-                       $domain = DatabaseDomain::newFromId( $domain );
+       public static function getWikiIdFromDbDomain( $domain ) {
+               $domain = DatabaseDomain::newFromId( $domain );
+               // Since the schema was not always part of the wiki ID, try to maintain backwards
+               // compatibility with some common cases. Assume that if the DB domain schema is just
+               // the installer default then it is probably the case that the schema is the same for
+               // all wikis in the farm. Historically, any wiki farm had to make the database/prefix
+               // combination unique per wiki. Ommit the schema if it does not seem wiki specific.
+               if ( !in_array( $domain->getSchema(), [ null, 'mediawiki', 'dbo' ], true ) ) {
+                       // This means a site admin may have specifically taylored the schemas.
+                       // Domain IDs might use the form <DB>-<project>- or <DB>-<project>-<language>_,
+                       // meaning that the schema portion must be accounted for to disambiguate wikis.
+                       return "{$domain->getDatabase()}-{$domain->getSchema()}-{$domain->getTablePrefix()}";
                }
-
+               // Note that if this wiki ID is passed a a domain ID to LoadBalancer, then it can
+               // handle the schema by assuming the generic "mediawiki" schema if needed.
                return strlen( $domain->getTablePrefix() )
                        ? "{$domain->getDatabase()}-{$domain->getTablePrefix()}"
-                       : $domain->getDatabase();
+                       : (string)$domain->getDatabase();
+       }
+
+       /**
+        * @param string $domain
+        * @return string
+        * @deprecated Since 1.33; use getWikiIdFromDbDomain()
+        */
+       public static function getWikiIdFromDomain( $domain ) {
+               return self::getWikiIdFromDbDomain( $domain );
+       }
+
+       /**
+        * @return DatabaseDomain Database domain of the current wiki
+        * @since 1.33
+        */
+       public static function getCurrentWikiDbDomain() {
+               global $wgDBname, $wgDBmwschema, $wgDBprefix;
+               // Avoid invoking LBFactory to avoid any chance of recursion
+               return new DatabaseDomain( $wgDBname, $wgDBmwschema, (string)$wgDBprefix );
+       }
+
+       /**
+        * @param DatabaseDomain|string $domain
+        * @return bool Whether $domain matches the DB domain of the current wiki
+        * @since 1.33
+        */
+       public static function isCurrentWikiDbDomain( $domain ) {
+               return self::getCurrentWikiDbDomain()->equals( DatabaseDomain::newFromId( $domain ) );
+       }
+
+       /**
+        * @param string $wikiId
+        * @return bool Whether $wikiId matches the wiki ID of the current wiki
+        * @since 1.33
+        */
+       public static function isCurrentWikiId( $wikiId ) {
+               return ( self::getWikiIdFromDbDomain( self::getCurrentWikiDbDomain() ) === $wikiId );
        }
 }