From 3e2d4c1bc1cb7c9d8e93848cfdc23491fd4e85f7 Mon Sep 17 00:00:00 2001
From: hkjolhede <hkjolhede@gmail.com>
Date: Fri, 15 Nov 2013 21:10:09 +0100
Subject: [PATCH] Fixed error-checking error in sftp.php

---
 apps/files_external/lib/sftp.php | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/apps/files_external/lib/sftp.php b/apps/files_external/lib/sftp.php
index fb1ecd5463..7c5aed5aa0 100644
--- a/apps/files_external/lib/sftp.php
+++ b/apps/files_external/lib/sftp.php
@@ -94,15 +94,17 @@ class SFTP extends \OC\Files\Storage\Common {
 	private function writeHostKeys($keys) {
 		try {
 			$keyPath = $this->hostKeysPath();
-			$fp = fopen($keyPath, 'w');
-			foreach ($keys as $host => $key) {
-				fwrite($fp, $host . '::' . $key . "\n");
+			if ($keyPath && file_exists($keyPath)) {
+				$fp = fopen($keyPath, 'w');
+				foreach ($keys as $host => $key) {
+					fwrite($fp, $host . '::' . $key . "\n");
+				}
+				fclose($fp);
+				return true;
 			}
-			fclose($fp);
-			return true;
 		} catch (\Exception $e) {
-			return false;
 		}
+		return false;
 	}
 
 	private function readHostKeys() {