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| author | yum <yum.food.vr@gmail.com> | 2023-01-01 21:05:27 -0800 |
|---|---|---|
| committer | yum <yum.food.vr@gmail.com> | 2023-01-01 21:44:45 -0800 |
| commit | e25bdba3a3a53b09be5269d8b065c13b73ab55c3 (patch) | |
| tree | 1d1dc1d94cde92c2f4f8ce86017395054787515d /Python/Dependencies/future-0.18.2/src/future/backports/email/base64mime.py | |
| parent | 0d408cc812a094a708edbe4baf536e928731cfc3 (diff) | |
Embed git in package
package.ps1 fetches PortableGit and embeds it in the package. This
eliminates all but one runtime dependency (MSVC++ Redistributable).
* Move Python into a new FOSS folder.
Diffstat (limited to 'Python/Dependencies/future-0.18.2/src/future/backports/email/base64mime.py')
| -rw-r--r-- | Python/Dependencies/future-0.18.2/src/future/backports/email/base64mime.py | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/Python/Dependencies/future-0.18.2/src/future/backports/email/base64mime.py b/Python/Dependencies/future-0.18.2/src/future/backports/email/base64mime.py deleted file mode 100644 index 416d612..0000000 --- a/Python/Dependencies/future-0.18.2/src/future/backports/email/base64mime.py +++ /dev/null @@ -1,120 +0,0 @@ -# Copyright (C) 2002-2007 Python Software Foundation -# Author: Ben Gertzfield -# Contact: email-sig@python.org - -"""Base64 content transfer encoding per RFCs 2045-2047. - -This module handles the content transfer encoding method defined in RFC 2045 -to encode arbitrary 8-bit data using the three 8-bit bytes in four 7-bit -characters encoding known as Base64. - -It is used in the MIME standards for email to attach images, audio, and text -using some 8-bit character sets to messages. - -This module provides an interface to encode and decode both headers and bodies -with Base64 encoding. - -RFC 2045 defines a method for including character set information in an -`encoded-word' in a header. This method is commonly used for 8-bit real names -in To:, From:, Cc:, etc. fields, as well as Subject: lines. - -This module does not do the line wrapping or end-of-line character conversion -necessary for proper internationalized headers; it only does dumb encoding and -decoding. To deal with the various line wrapping issues, use the email.header -module. -""" -from __future__ import unicode_literals -from __future__ import division -from __future__ import absolute_import -from future.builtins import range -from future.builtins import bytes - -__all__ = [ - 'body_decode', - 'body_encode', - 'decode', - 'decodestring', - 'header_encode', - 'header_length', - ] - - -from base64 import b64encode -from binascii import b2a_base64, a2b_base64 - -CRLF = '\r\n' -NL = '\n' -EMPTYSTRING = '' - -# See also Charset.py -MISC_LEN = 7 - - -# Helpers -def header_length(bytearray): - """Return the length of s when it is encoded with base64.""" - groups_of_3, leftover = divmod(len(bytearray), 3) - # 4 bytes out for each 3 bytes (or nonzero fraction thereof) in. - n = groups_of_3 * 4 - if leftover: - n += 4 - return n - - -def header_encode(header_bytes, charset='iso-8859-1'): - """Encode a single header line with Base64 encoding in a given charset. - - charset names the character set to use to encode the header. It defaults - to iso-8859-1. Base64 encoding is defined in RFC 2045. - """ - if not header_bytes: - return "" - if isinstance(header_bytes, str): - header_bytes = header_bytes.encode(charset) - encoded = b64encode(header_bytes).decode("ascii") - return '=?%s?b?%s?=' % (charset, encoded) - - -def body_encode(s, maxlinelen=76, eol=NL): - r"""Encode a string with base64. - - Each line will be wrapped at, at most, maxlinelen characters (defaults to - 76 characters). - - Each line of encoded text will end with eol, which defaults to "\n". Set - this to "\r\n" if you will be using the result of this function directly - in an email. - """ - if not s: - return s - - encvec = [] - max_unencoded = maxlinelen * 3 // 4 - for i in range(0, len(s), max_unencoded): - # BAW: should encode() inherit b2a_base64()'s dubious behavior in - # adding a newline to the encoded string? - enc = b2a_base64(s[i:i + max_unencoded]).decode("ascii") - if enc.endswith(NL) and eol != NL: - enc = enc[:-1] + eol - encvec.append(enc) - return EMPTYSTRING.join(encvec) - - -def decode(string): - """Decode a raw base64 string, returning a bytes object. - - This function does not parse a full MIME header value encoded with - base64 (like =?iso-8895-1?b?bmloISBuaWgh?=) -- please use the high - level email.header class for that functionality. - """ - if not string: - return bytes() - elif isinstance(string, str): - return a2b_base64(string.encode('raw-unicode-escape')) - else: - return a2b_base64(string) - - -# For convenience and backwards compatibility w/ standard base64 module -body_decode = decode -decodestring = decode |
