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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2024-05-22 10:36
mime	[ DIR ]	drwxr-xr-x	2024-05-22 10:36
__init__.py	1.75 KB	-rw-r--r--	2024-04-17 16:58
_encoded_words.py	7.73 KB	-rw-r--r--	2024-04-17 16:58
_header_value_parser.py	101.45 KB	-rw-r--r--	2024-04-17 16:58
_parseaddr.py	16.8 KB	-rw-r--r--	2024-04-17 16:58
_policybase.py	13.99 KB	-rw-r--r--	2024-04-17 16:58
architecture.rst	9.34 KB	-rw-r--r--	2017-09-19 07:32
base64mime.py	3.47 KB	-rw-r--r--	2024-04-17 16:58
charset.py	16.82 KB	-rw-r--r--	2024-04-17 16:58
encoders.py	2.13 KB	-rw-r--r--	2024-04-17 16:58
errors.py	3.45 KB	-rw-r--r--	2024-04-17 16:58
feedparser.py	21.72 KB	-rw-r--r--	2024-04-17 16:58
generator.py	19.32 KB	-rw-r--r--	2024-04-17 16:58
header.py	23.64 KB	-rw-r--r--	2024-04-17 16:58
headerregistry.py	19.57 KB	-rw-r--r--	2024-04-17 16:58
iterators.py	2.15 KB	-rw-r--r--	2024-04-17 16:58
message.py	34.83 KB	-rw-r--r--	2024-04-17 16:58
parser.py	4.9 KB	-rw-r--r--	2024-04-17 16:58
policy.py	8.35 KB	-rw-r--r--	2024-04-17 16:58
quoprimime.py	9.64 KB	-rw-r--r--	2024-04-17 16:58
utils.py	13.69 KB	-rw-r--r--	2024-04-17 16:58

Rename

# 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 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'

def encode_noop(msg):
    """Do nothing."""