read bad words file in binary mode because the body is also bytes

Author: majestrate

sogs/filtration.py

@@ -5,9 +5,11 @@
 
 def should_drop_message_with_body(body):
     """return true if we should drop a message given its body"""
+    body = message_body(body)
+    if body is None:
+        return False
     if os.path.exists(config.BAD_WORDS_FILE):
-        body = message_body(body)
-        with open(config.BAD_WORDS_FILE, 'r') as f:
+        with open(config.BAD_WORDS_FILE, 'rb') as f:
             for line in f:
                 word = line.rstrip()
                 if word in body: