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| author | nkozlovskiy <nmk@ydb.tech> | 2023-09-29 12:24:06 +0300 |
|---|---|---|
| committer | nkozlovskiy <nmk@ydb.tech> | 2023-09-29 12:41:34 +0300 |
| commit | e0e3e1717e3d33762ce61950504f9637a6e669ed (patch) | |
| tree | bca3ff6939b10ed60c3d5c12439963a1146b9711 /contrib/tools/python3/src/Lib/email/encoders.py | |
| parent | 38f2c5852db84c7b4d83adfcb009eb61541d1ccd (diff) | |
| download | ydb-e0e3e1717e3d33762ce61950504f9637a6e669ed.tar.gz | |
add ydb deps
Diffstat (limited to 'contrib/tools/python3/src/Lib/email/encoders.py')
| -rw-r--r-- | contrib/tools/python3/src/Lib/email/encoders.py | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/contrib/tools/python3/src/Lib/email/encoders.py b/contrib/tools/python3/src/Lib/email/encoders.py new file mode 100644 index 0000000000..17bd1ab7b1 --- /dev/null +++ b/contrib/tools/python3/src/Lib/email/encoders.py @@ -0,0 +1,65 @@ +# 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', + ] + + +from base64 import encodebytes 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(b' ', b'=20') + + +def encode_base64(msg): + """Encode the message's payload in Base64. + + Also, add an appropriate Content-Transfer-Encoding header. + """ + orig = msg.get_payload(decode=True) + 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(decode=True) + 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(decode=True) + 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 decoding from ASCII succeeds, + # we know the data must be 7bit, otherwise treat it as 8bit. + try: + orig.decode('ascii') + except UnicodeError: + msg['Content-Transfer-Encoding'] = '8bit' + else: + msg['Content-Transfer-Encoding'] = '7bit' + + +def encode_noop(msg): + """Do nothing.""" |