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Diffstat (limited to 'Lib/email/encoders.py')
-rw-r--r-- | Lib/email/encoders.py | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/Lib/email/encoders.py b/Lib/email/encoders.py deleted file mode 100644 index 06016cd..0000000 --- a/Lib/email/encoders.py +++ /dev/null @@ -1,88 +0,0 @@ -# Copyright (C) 2001-2006 Python Software Foundation -# Author: Barry Warsaw -# Contact: email-sig@python.org - -"""Encodings and related functions.""" - -__all__ = [ - 'encode_7or8bit', - 'encode_base64', - 'encode_noop', - 'encode_quopri', - ] - -import base64 - -from quopri import encodestring as _encodestring - - - -def _qencode(s): - enc = _encodestring(s, quotetabs=True) - # Must encode spaces, which quopri.encodestring() doesn't do - return enc.replace(' ', '=20') - - -def _bencode(s): - # We can't quite use base64.encodestring() since it tacks on a "courtesy - # newline". Blech! - if not s: - return s - hasnewline = (s[-1] == '\n') - value = base64.encodestring(s) - if not hasnewline and value[-1] == '\n': - return value[:-1] - return value - - - -def encode_base64(msg): - """Encode the message's payload in Base64. - - Also, add an appropriate Content-Transfer-Encoding header. - """ - orig = msg.get_payload() - encdata = _bencode(orig) - msg.set_payload(encdata) - msg['Content-Transfer-Encoding'] = 'base64' - - - -def encode_quopri(msg): - """Encode the message's payload in quoted-printable. - - Also, add an appropriate Content-Transfer-Encoding header. - """ - orig = msg.get_payload() - encdata = _qencode(orig) - msg.set_payload(encdata) - msg['Content-Transfer-Encoding'] = 'quoted-printable' - - - -def encode_7or8bit(msg): - """Set the Content-Transfer-Encoding header to 7bit or 8bit.""" - orig = msg.get_payload() - if orig is None: - # There's no payload. For backwards compatibility we use 7bit - msg['Content-Transfer-Encoding'] = '7bit' - return - # We play a trick to make this go fast. If encoding to ASCII succeeds, we - # know the data must be 7bit, otherwise treat it as 8bit. - try: - orig.encode('ascii') - except UnicodeError: - # iso-2022-* is non-ASCII but still 7-bit - charset = msg.get_charset() - output_cset = charset and charset.output_charset - if output_cset and output_cset.lower().startswith('iso-2202-'): - msg['Content-Transfer-Encoding'] = '7bit' - else: - msg['Content-Transfer-Encoding'] = '8bit' - else: - msg['Content-Transfer-Encoding'] = '7bit' - - - -def encode_noop(msg): - """Do nothing.""" |