1 files changed, 54 insertions, 0 deletions
diff --git a/extensions/Interwiki/Interwiki_hooks.php b/extensions/Interwiki/Interwiki_hooks.php
new file mode 100644
index 00000000..0a7e38a6
--- /dev/null
+++ b/extensions/Interwiki/Interwiki_hooks.php
@@ -0,0 +1,54 @@
+<?php
+
+class InterwikiHooks {
+	public static function onExtensionFunctions() {
+		global $wgInterwikiViewOnly;
+
+		if ( $wgInterwikiViewOnly === false ) {
+			global $wgAvailableRights, $wgLogTypes, $wgLogActionsHandlers;
+
+			// New user right, required to modify the interwiki table through Special:Interwiki
+			$wgAvailableRights[] = 'interwiki';
+
+			// Set up the new log type - interwiki actions are logged to this new log
+			$wgLogTypes[] = 'interwiki';
+			// interwiki, iw_add, iw_delete, iw_edit
+			$wgLogActionsHandlers['interwiki/*'] = 'InterwikiLogFormatter';
+		}
+
+		return true;
+	}
+
+	public static function onInterwikiLoadPrefix( $prefix, &$iwData ) {
+		global $wgInterwikiCentralDB;
+		// docs/hooks.txt says: Return true without providing an interwiki to continue interwiki search.
+		if ( $wgInterwikiCentralDB === null || $wgInterwikiCentralDB === wfWikiId() ) {
+			// No global set or this is global, nothing to add
+			return true;
+		}
+		if ( !Language::fetchLanguageName( $prefix ) ) {
+			// Check if prefix exists locally and skip
+			foreach ( Interwiki::getAllPrefixes( null ) as $id => $localPrefixInfo ) {
+				if ( $prefix === $localPrefixInfo['iw_prefix'] ) {
+					return true;
+				}
+			}
+			$dbr = wfGetDB( DB_SLAVE, array(), $wgInterwikiCentralDB );
+			$res = $dbr->selectRow(
+				'interwiki',
+				'*',
+				array( 'iw_prefix' => $prefix ),
+				__METHOD__
+			);
+			if ( !$res ) {
+				return true;
+			}
+			// Excplicitly make this an array since it's expected to be one
+			$iwData = (array)$res;
+			// At this point, we can safely return false because we know that we have something
+			return false;
+		}
+		return true;
+	}
+
+}