From 32986c4d645f3e968428b09b826b3e2e2a97adb5 Mon Sep 17 00:00:00 2001
From: James Tanner <tanner.jc@gmail.com>
Date: Fri, 22 Nov 2013 16:36:31 -0500
Subject: Fixes #5021 safely split hostkeys with quotes

---
 library/system/authorized_key | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/library/system/authorized_key b/library/system/authorized_key
index 5c40e7d97c..db0425d2a1 100644
--- a/library/system/authorized_key
+++ b/library/system/authorized_key
@@ -209,7 +209,12 @@ def parsekey(raw_key):
     key_type   = None   # type of ssh key
     type_index = None   # index of keytype in key string|list
 
-    key_parts = shlex.split(raw_key)
+    # split key safely
+    lex = shlex.shlex(raw_key)
+    lex.quotes = ["'", '"']
+    lex.whitespace_split = True
+    key_parts = list(lex)
+
     for i in range(0, len(key_parts)):
         if key_parts[i] in VALID_SSH2_KEY_TYPES:
             type_index = i
-- 
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