handle content-transfer-encoding: 8bit

pgp_mime_lib/rfc3156.py

@@ -154,7 +154,7 @@ def encode_base64(msg):
     # for multipart attachments (eg. 7bit or 8bit encoded attachments). For
     # now, if content is already encoded as base64 or if it is encoded with
     # some unknown encoding, we just pass.
-    if encoding in [None, 'quoted-printable', 'x-uuencode', 'uue', 'x-uue']:
+    if encoding in [None, 'quoted-printable', 'x-uuencode', 'uue', 'x-uue', '8bit']:
         orig = msg.get_payload(decode=True)
         encdata = _bencode(orig)
         msg.set_payload(encdata)

pgp_mime_lib/test/test_pgp_mime_lib.py

@@ -181,9 +181,14 @@ class TestMIME(TestBase):
     def test_simple_text_message(self):
         self._encrypt(MIMEText('test message'))
 
-    def test_utf8_text_message(self):
+    def test_base64_text_message(self):
         self._encrypt(MIMEText(u'test message', 'plain', 'utf-8'))
 
+    def test_8bit_text_message(self):
+        m = MIMEText(u'test message')
+        m.replace_header('Content-Transfer-Encoding', '8bit')
+        self._encrypt(m)
+        
     def test_multipart_message_with_image(self):
         msg = MIMEMultipart()
         msg.preamble = 'This is a message with an image attachment'