1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies GmbH
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################
from autobahn.websocket.compress_base import \
PerMessageCompressOffer, \
PerMessageCompressOfferAccept, \
PerMessageCompressResponse, \
PerMessageCompressResponseAccept, \
PerMessageCompress
from autobahn.websocket.compress_deflate import \
PerMessageDeflateMixin, \
PerMessageDeflateOffer, \
PerMessageDeflateOfferAccept, \
PerMessageDeflateResponse, \
PerMessageDeflateResponseAccept, \
PerMessageDeflate
# this must be a list (not tuple), since we dynamically
# extend it ..
__all__ = [
'PerMessageCompressOffer',
'PerMessageCompressOfferAccept',
'PerMessageCompressResponse',
'PerMessageCompressResponseAccept',
'PerMessageCompress',
'PerMessageDeflateOffer',
'PerMessageDeflateOfferAccept',
'PerMessageDeflateResponse',
'PerMessageDeflateResponseAccept',
'PerMessageDeflate',
'PERMESSAGE_COMPRESSION_EXTENSION'
]
# map of available compression extensions
PERMESSAGE_COMPRESSION_EXTENSION = {
# class for 'permessage-deflate' is always available
PerMessageDeflateMixin.EXTENSION_NAME: {
'Offer': PerMessageDeflateOffer,
'OfferAccept': PerMessageDeflateOfferAccept,
'Response': PerMessageDeflateResponse,
'ResponseAccept': PerMessageDeflateResponseAccept,
'PMCE': PerMessageDeflate
}
}
# include 'permessage-bzip2' classes if bzip2 is available
try:
import bz2
except ImportError:
bz2 = None
else:
from autobahn.websocket.compress_bzip2 import \
PerMessageBzip2Mixin, \
PerMessageBzip2Offer, \
PerMessageBzip2OfferAccept, \
PerMessageBzip2Response, \
PerMessageBzip2ResponseAccept, \
PerMessageBzip2
PMCE = {
'Offer': PerMessageBzip2Offer,
'OfferAccept': PerMessageBzip2OfferAccept,
'Response': PerMessageBzip2Response,
'ResponseAccept': PerMessageBzip2ResponseAccept,
'PMCE': PerMessageBzip2
}
PERMESSAGE_COMPRESSION_EXTENSION[PerMessageBzip2Mixin.EXTENSION_NAME] = PMCE
__all__.extend(['PerMessageBzip2Offer',
'PerMessageBzip2OfferAccept',
'PerMessageBzip2Response',
'PerMessageBzip2ResponseAccept',
'PerMessageBzip2'])
# include 'permessage-snappy' classes if Snappy is available
try:
# noinspection PyPackageRequirements
import snappy
except ImportError:
snappy = None
else:
from autobahn.websocket.compress_snappy import \
PerMessageSnappyMixin, \
PerMessageSnappyOffer, \
PerMessageSnappyOfferAccept, \
PerMessageSnappyResponse, \
PerMessageSnappyResponseAccept, \
PerMessageSnappy
PMCE = {
'Offer': PerMessageSnappyOffer,
'OfferAccept': PerMessageSnappyOfferAccept,
'Response': PerMessageSnappyResponse,
'ResponseAccept': PerMessageSnappyResponseAccept,
'PMCE': PerMessageSnappy
}
PERMESSAGE_COMPRESSION_EXTENSION[PerMessageSnappyMixin.EXTENSION_NAME] = PMCE
__all__.extend(['PerMessageSnappyOffer',
'PerMessageSnappyOfferAccept',
'PerMessageSnappyResponse',
'PerMessageSnappyResponseAccept',
'PerMessageSnappy'])
|
