From d3e0e88f1886ed714102587af22daf211eb40415 Mon Sep 17 00:00:00 2001
From: Max Semenik <maxsem@users.mediawiki.org>
Date: Mon, 20 Feb 2012 19:19:52 +0000
Subject: [PATCH] Don't output skinned errors in case of unhandled API
 exceptions

---
 includes/Exception.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/includes/Exception.php b/includes/Exception.php
index 3bd89b6e12..e7700b51cf 100644
--- a/includes/Exception.php
+++ b/includes/Exception.php
@@ -203,7 +203,11 @@ class MWException extends Exception {
 			wfDebugLog( 'exception', $log );
 		}
 
-		if ( self::isCommandLine() ) {
+		if ( defined( 'MW_API' ) ) {
+			// Unhandled API exception, we can't be sure that format printer is alive
+			header( 'MediaWiki-API-Error: internal_api_error_' . get_class( $this ) );
+			wfHttpError(500, 'Internal Server Error', $this->getText() );
+		} elseif ( self::isCommandLine() ) {
 			MWExceptionHandler::printError( $this->getText() );
 		} else {
 			$this->reportHTML();
-- 
2.20.1