python (3.11.7)
1 """Python 'base64_codec' Codec - base64 content transfer encoding.
2
3 This codec de/encodes from bytes to bytes.
4
5 Written by Marc-Andre Lemburg (mal@lemburg.com).
6 """
7
8 import codecs
9 import base64
10
11 ### Codec APIs
12
13 def base64_encode(input, errors='strict'):
14 assert errors == 'strict'
15 return (base64.encodebytes(input), len(input))
16
17 def base64_decode(input, errors='strict'):
18 assert errors == 'strict'
19 return (base64.decodebytes(input), len(input))
20
21 class ESC[4;38;5;81mCodec(ESC[4;38;5;149mcodecsESC[4;38;5;149m.ESC[4;38;5;149mCodec):
22 def encode(self, input, errors='strict'):
23 return base64_encode(input, errors)
24 def decode(self, input, errors='strict'):
25 return base64_decode(input, errors)
26
27 class ESC[4;38;5;81mIncrementalEncoder(ESC[4;38;5;149mcodecsESC[4;38;5;149m.ESC[4;38;5;149mIncrementalEncoder):
28 def encode(self, input, final=False):
29 assert self.errors == 'strict'
30 return base64.encodebytes(input)
31
32 class ESC[4;38;5;81mIncrementalDecoder(ESC[4;38;5;149mcodecsESC[4;38;5;149m.ESC[4;38;5;149mIncrementalDecoder):
33 def decode(self, input, final=False):
34 assert self.errors == 'strict'
35 return base64.decodebytes(input)
36
37 class ESC[4;38;5;81mStreamWriter(ESC[4;38;5;149mCodec, ESC[4;38;5;149mcodecsESC[4;38;5;149m.ESC[4;38;5;149mStreamWriter):
38 charbuffertype = bytes
39
40 class ESC[4;38;5;81mStreamReader(ESC[4;38;5;149mCodec, ESC[4;38;5;149mcodecsESC[4;38;5;149m.ESC[4;38;5;149mStreamReader):
41 charbuffertype = bytes
42
43 ### encodings module API
44
45 def getregentry():
46 return codecs.CodecInfo(
47 name='base64',
48 encode=base64_encode,
49 decode=base64_decode,
50 incrementalencoder=IncrementalEncoder,
51 incrementaldecoder=IncrementalDecoder,
52 streamwriter=StreamWriter,
53 streamreader=StreamReader,
54 _is_text_encoding=False,
55 )
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