# Copyright (C) 2001-2006 Python Software Foundation # Author: Barry Warsaw # Contact: email-sig@python.org """Encodings and related functions.""" from __future__ import unicode_literals from __future__ import division from __future__ import absolute_import from future.builtins import str __all__ = [ 'encode_7or8bit', 'encode_base64', 'encode_noop', 'encode_quopri', ] try: from base64 import encodebytes as _bencode except ImportError: # Py2 compatibility. TODO: test this! from base64 import encodestring as _bencode 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 encode_base64(msg): """Encode the message's payload in Base64. Also, add an appropriate Content-Transfer-Encoding header. """ orig = msg.get_payload() encdata = str(_bencode(orig), 'ascii') 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/decode to ASCII # succeeds, we know the data must be 7bit, otherwise treat it as 8bit. try: if isinstance(orig, str): orig.encode('ascii') else: orig.decode('ascii') except UnicodeError: charset = msg.get_charset() output_cset = charset and charset.output_charset # iso-2022-* is non-ASCII but encodes to a 7-bit representation if output_cset and output_cset.lower().startswith('iso-2022-'): msg['Content-Transfer-Encoding'] = '7bit' else: msg['Content-Transfer-Encoding'] = '8bit' else: msg['Content-Transfer-Encoding'] = '7bit' if not isinstance(orig, str): msg.set_payload(orig.decode('ascii', 'surrogateescape')) def encode_noop(msg): """Do nothing.""" # Well, not quite *nothing*: in Python3 we have to turn bytes into a string # in our internal surrogateescaped form in order to keep the model # consistent. orig = msg.get_payload() if not isinstance(orig, str): msg.set_payload(orig.decode('ascii', 'surrogateescape'))
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
__pycache__ | Folder | 0755 |
|
|
mime | Folder | 0755 |
|
|
__init__.py | File | 2.22 KB | 0644 |
|
_encoded_words.py | File | 8.25 KB | 0644 |
|
_header_value_parser.py | File | 102.24 KB | 0644 |
|
_parseaddr.py | File | 16.98 KB | 0644 |
|
_policybase.py | File | 14.3 KB | 0644 |
|
base64mime.py | File | 3.64 KB | 0644 |
|
charset.py | File | 17.03 KB | 0644 |
|
encoders.py | File | 2.73 KB | 0644 |
|
errors.py | File | 3.59 KB | 0644 |
|
feedparser.py | File | 22.2 KB | 0644 |
|
generator.py | File | 19.06 KB | 0644 |
|
header.py | File | 23.88 KB | 0644 |
|
headerregistry.py | File | 20.15 KB | 0644 |
|
iterators.py | File | 2.29 KB | 0644 |
|
message.py | File | 34.4 KB | 0644 |
|
parser.py | File | 5.19 KB | 0644 |
|
policy.py | File | 8.62 KB | 0644 |
|
quoprimime.py | File | 10.67 KB | 0644 |
|
utils.py | File | 13.94 KB | 0644 |
|