From 02f140614fd580a1cc1265e5197a4d470528a02a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maxime=20=E2=80=9Cpep=E2=80=9D=20Buquet?= <pep@bouah.net>
Date: Mon, 19 Nov 2018 22:10:41 +0100
Subject: [PATCH] xep_0384: use exception instead of log when missing own key
 when decrypting
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Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
---
 plugin.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/plugin.py b/plugin.py
index 5a13190..45e761a 100644
--- a/plugin.py
+++ b/plugin.py
@@ -69,6 +69,13 @@ def _load_device_id(cache_dir: str) -> int:
 class PluginCouldNotLoad(Exception): pass
 
 
+# Generic exception
+class XEP0384(Exception): pass
+
+
+class MissingOwnKey(XEP0384): pass
+
+
 class XEP_0384(BasePlugin):
 
     """
@@ -233,8 +240,7 @@ class XEP_0384(BasePlugin):
         key = header.xml.find("{%s}key[@rid='%s']" % (
             OMEMO_BASE_NS, self._device_id))
         if key is None:
-            log.debug("Saw encrypted message that wasn't for me, ignoring.")
-            return None
+            raise MissingOwnKey("Encrypted message is not for us")
 
         key = Key(key)
         isPrekeyMessage = key['prekey'] in TRUE_VALUES