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comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/lib/python3.8/email/mime/audio.py @ 68:5028fdace37b

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 16:23:26 -0400
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67:0e9998148a16 68:5028fdace37b
1 # Copyright (C) 2001-2007 Python Software Foundation
2 # Author: Anthony Baxter
3 # Contact: email-sig@python.org
4
5 """Class representing audio/* type MIME documents."""
6
7 __all__ = ['MIMEAudio']
8
9 import sndhdr
10
11 from io import BytesIO
12 from email import encoders
13 from email.mime.nonmultipart import MIMENonMultipart
14
15
16
17 _sndhdr_MIMEmap = {'au' : 'basic',
18 'wav' :'x-wav',
19 'aiff':'x-aiff',
20 'aifc':'x-aiff',
21 }
22
23 # There are others in sndhdr that don't have MIME types. :(
24 # Additional ones to be added to sndhdr? midi, mp3, realaudio, wma??
25 def _whatsnd(data):
26 """Try to identify a sound file type.
27
28 sndhdr.what() has a pretty cruddy interface, unfortunately. This is why
29 we re-do it here. It would be easier to reverse engineer the Unix 'file'
30 command and use the standard 'magic' file, as shipped with a modern Unix.
31 """
32 hdr = data[:512]
33 fakefile = BytesIO(hdr)
34 for testfn in sndhdr.tests:
35 res = testfn(hdr, fakefile)
36 if res is not None:
37 return _sndhdr_MIMEmap.get(res[0])
38 return None
39
40
41
42 class MIMEAudio(MIMENonMultipart):
43 """Class for generating audio/* MIME documents."""
44
45 def __init__(self, _audiodata, _subtype=None,
46 _encoder=encoders.encode_base64, *, policy=None, **_params):
47 """Create an audio/* type MIME document.
48
49 _audiodata is a string containing the raw audio data. If this data
50 can be decoded by the standard Python `sndhdr' module, then the
51 subtype will be automatically included in the Content-Type header.
52 Otherwise, you can specify the specific audio subtype via the
53 _subtype parameter. If _subtype is not given, and no subtype can be
54 guessed, a TypeError is raised.
55
56 _encoder is a function which will perform the actual encoding for
57 transport of the image data. It takes one argument, which is this
58 Image instance. It should use get_payload() and set_payload() to
59 change the payload to the encoded form. It should also add any
60 Content-Transfer-Encoding or other headers to the message as
61 necessary. The default encoding is Base64.
62
63 Any additional keyword arguments are passed to the base class
64 constructor, which turns them into parameters on the Content-Type
65 header.
66 """
67 if _subtype is None:
68 _subtype = _whatsnd(_audiodata)
69 if _subtype is None:
70 raise TypeError('Could not find audio MIME subtype')
71 MIMENonMultipart.__init__(self, 'audio', _subtype, policy=policy,
72 **_params)
73 self.set_payload(_audiodata)
74 _encoder(self)