From f69a5c9134a3e4bba929dc76d561d9cc42cadeac Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Mon, 26 Oct 2015 18:32:49 +0000
Subject: Fix a 500 error resulting from empty room_ids

POST /_matrix/client/api/v1/rooms//send/a.b.c gave a 500 error, because we
assumed that rooms always had at least one character.
---
 synapse/types.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'synapse')

diff --git a/synapse/types.py b/synapse/types.py
index 9cffc33d27..8c51e00e8a 100644
--- a/synapse/types.py
+++ b/synapse/types.py
@@ -47,7 +47,7 @@ class DomainSpecificString(
     @classmethod
     def from_string(cls, s):
         """Parse the string given by 's' into a structure object."""
-        if s[0] != cls.SIGIL:
+        if len(s) < 1 or s[0] != cls.SIGIL:
             raise SynapseError(400, "Expected %s string to start with '%s'" % (
                 cls.__name__, cls.SIGIL,
             ))
-- 
cgit 1.4.1