[parser] Handle patches with no content charset defined

If we don't have an incoming charset defined, assume utf-8.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 8 insertions, 2 deletions

diff --git a/apps/patchwork/bin/parsemail.py b/apps/patchwork/bin/parsemail.py
index 9aaaa9d..772728e 100755
--- a/apps/patchwork/bin/parsemail.py
+++ b/apps/patchwork/bin/parsemail.py
@@ -138,10 +138,16 @@ def find_content(project, mail):
             continue
 
         payload = part.get_payload(decode=True)
-        if not isinstance(payload, unicode):
-            payload = unicode(payload, part.get_content_charset())
+        charset = part.get_content_charset()
         subtype = part.get_content_subtype()
 
+        # if we don't have a charset, assume utf-8
+        if charset is None:
+            charset = 'utf-8'
+
+        if not isinstance(payload, unicode):
+            payload = unicode(payload, charset)
+
         if subtype in ['x-patch', 'x-diff']:
             patchbuf = payload