diff options
| -rw-r--r-- | Lib/email/header.py | 6 | ||||
| -rw-r--r-- | Lib/test/test_email/test_email.py | 14 |
2 files changed, 20 insertions, 0 deletions
diff --git a/Lib/email/header.py b/Lib/email/header.py index 8c32514..2562b30 100644 --- a/Lib/email/header.py +++ b/Lib/email/header.py @@ -66,9 +66,15 @@ def decode_header(header): otherwise a lower-case string containing the name of the character set specified in the encoded string. + header may be a string that may or may not contain RFC2047 encoded words, + or it may be a Header object. + An email.errors.HeaderParseError may be raised when certain decoding error occurs (e.g. a base64 decoding exception). """ + # If it is a Header object, we can just return the chunks. + if hasattr(header, '_chunks'): + return list(header._chunks) # If no encoding, just return the header with no charset. if not ecre.search(header): return [(header, None)] diff --git a/Lib/test/test_email/test_email.py b/Lib/test/test_email/test_email.py index ec9421d..6cefa38 100644 --- a/Lib/test/test_email/test_email.py +++ b/Lib/test/test_email/test_email.py @@ -3925,6 +3925,20 @@ A very long line that must get split to something other than at the h.append(x, errors='replace') eq(str(h), e) + def test_escaped_8bit_header(self): + x = b'Ynwp4dUEbay Auction Semiar- No Charge \x96 Earn Big' + x = x.decode('ascii', 'surrogateescape') + h = Header(x, charset=email.charset.UNKNOWN8BIT) + self.assertEqual(str(h), + 'Ynwp4dUEbay Auction Semiar- No Charge \uFFFD Earn Big') + self.assertEqual(email.header.decode_header(h), [(x, 'unknown-8bit')]) + + def test_modify_returned_list_does_not_change_header(self): + h = Header('test') + chunks = email.header.decode_header(h) + chunks.append(('ascii', 'test2')) + self.assertEqual(str(h), 'test') + def test_encoded_adjacent_nonencoded(self): eq = self.assertEqual h = Header() |