Mercurial > libervia-backend

annotate sat/plugins/plugin_xep_0300.py @ 4007:1d5a81e3c9e8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
plugin XEP-0384: skip MessageReceived trigger when in a component: OMEMO is not used in components so far, but the trigger is trying to request OMEMO PEP nodes, which causes an error with virtual pubsub service of AP component.
author Goffi <goffi@goffi.org>
date Thu, 16 Mar 2023 12:31:24 +0100
parents 40d47cc29ea4
children 524856bd7b19
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
1 #!/usr/bin/env python3
3137
559a625a236b fixed shebangs
Goffi <goffi@goffi.org>
parents: 3136
diff changeset
2
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
3
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
4 # SAT plugin for Hash functions (XEP-0300)
3479
be6d91572633 date update
Goffi <goffi@goffi.org>
parents: 3286
diff changeset
5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
6
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
7 # This program is free software: you can redistribute it and/or modify
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
8 # it under the terms of the GNU Affero General Public License as published by
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
9 # the Free Software Foundation, either version 3 of the License, or
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
10 # (at your option) any later version.
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
11
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
12 # This program is distributed in the hope that it will be useful,
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
15 # GNU Affero General Public License for more details.
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
16
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
17 # You should have received a copy of the GNU Affero General Public License
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
19
3916
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
20 from typing import Tuple
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
21 import base64
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
22 from collections import OrderedDict
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
23 import hashlib
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
24
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
25 from twisted.internet import threads
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
26 from twisted.internet import defer
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
27 from twisted.words.protocols.jabber.xmlstream import XMPPHandler
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
28 from twisted.words.xish import domish
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
29 from wokkel import disco, iwokkel
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
30 from zope.interface import implementer
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
31
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
32 from sat.core import exceptions
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
33 from sat.core.constants import Const as C
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
34 from sat.core.i18n import _
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
35 from sat.core.log import getLogger
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
36
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
37 log = getLogger(__name__)
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
38
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
39
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
40 PLUGIN_INFO = {
2145
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO
Goffi <goffi@goffi.org>
parents: 2144
diff changeset
41 C.PI_NAME: "Cryptographic Hash Functions",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO
Goffi <goffi@goffi.org>
parents: 2144
diff changeset
42 C.PI_IMPORT_NAME: "XEP-0300",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO
Goffi <goffi@goffi.org>
parents: 2144
diff changeset
43 C.PI_TYPE: "XEP",
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
44 C.PI_MODES: C.PLUG_MODE_BOTH,
2145
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO
Goffi <goffi@goffi.org>
parents: 2144
diff changeset
45 C.PI_PROTOCOLS: ["XEP-0300"],
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO
Goffi <goffi@goffi.org>
parents: 2144
diff changeset
46 C.PI_MAIN: "XEP_0300",
33c8c4973743 core (plugins): added missing contants + use of new constants in PLUGIN_INFO
Goffi <goffi@goffi.org>
parents: 2144
diff changeset
47 C.PI_HANDLER: "yes",
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
48 C.PI_DESCRIPTION: _("""Management of cryptographic hashes"""),
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
49 }
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
50
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
51 NS_HASHES = "urn:xmpp:hashes:2"
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
52 NS_HASHES_FUNCTIONS = "urn:xmpp:hash-function-text-names:{}"
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
53 BUFFER_SIZE = 2 ** 12
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
54 ALGO_DEFAULT = "sha-256"
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
55
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
56
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
57 class XEP_0300(object):
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
58 # TODO: add blake after moving to Python 3
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
59 ALGOS = OrderedDict(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
60 (
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
61 ("md5", hashlib.md5),
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
62 ("sha-1", hashlib.sha1),
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
63 ("sha-256", hashlib.sha256),
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
64 ("sha-512", hashlib.sha512),
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
65 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
66 )
3916
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
67 ALGO_DEFAULT = ALGO_DEFAULT
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
68
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
69 def __init__(self, host):
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
70 log.info(_("plugin Hashes initialization"))
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
71 host.registerNamespace("hashes", NS_HASHES)
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
72
2144
1d3f73e065e1 core, jp: component handling + client handling refactoring:
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
73 def getHandler(self, client):
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
74 return XEP_0300_handler()
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
75
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
76 def getHasher(self, algo=ALGO_DEFAULT):
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
77 """Return hasher instance
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
78
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
79 @param algo(unicode): one of the XEP_300.ALGOS keys
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
80 @return (hash object): same object s in hashlib.
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
81 update method need to be called for each chunh
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
82 diget or hexdigest can be used at the end
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
83 """
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
84 return self.ALGOS[algo]()
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
85
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
86 def getDefaultAlgo(self):
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
87 return ALGO_DEFAULT
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
88
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
89 @defer.inlineCallbacks
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
90 def getBestPeerAlgo(self, to_jid, profile):
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
91 """Return the best available hashing algorith of other peer
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
92
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
93 @param to_jid(jid.JID): peer jid
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
94 @parm profile: %(doc_profile)s
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
95 @return (D(unicode, None)): best available algorithm,
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
96 or None if hashing is not possible
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
97 """
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2145
diff changeset
98 client = self.host.getClient(profile)
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
99 for algo in reversed(XEP_0300.ALGOS):
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
100 has_feature = yield self.host.hasFeature(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
101 client, NS_HASHES_FUNCTIONS.format(algo), to_jid
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
102 )
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
103 if has_feature:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
104 log.debug(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
105 "Best hashing algorithm found for {jid}: {algo}".format(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
106 jid=to_jid.full(), algo=algo
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
107 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
108 )
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
109 defer.returnValue(algo)
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
110
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
111 def _calculateHashBlocking(self, file_obj, hasher):
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
112 """Calculate hash in a blocking way
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
113
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
114 /!\\ blocking method, please use calculateHash instead
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
115 @param file_obj(file): a file-like object
3286
ddf3ded93b78 plugin XEP-0300; fixed use of calculateHash with getHasher
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
116 @param hasher(hash object): the method to call to initialise hash object
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
117 @return (str): the hex digest of the hash
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
118 """
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
119 while True:
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
120 buf = file_obj.read(BUFFER_SIZE)
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
121 if not buf:
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
122 break
3286
ddf3ded93b78 plugin XEP-0300; fixed use of calculateHash with getHasher
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
123 hasher.update(buf)
ddf3ded93b78 plugin XEP-0300; fixed use of calculateHash with getHasher
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
124 return hasher.hexdigest()
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
125
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
126 def calculateHash(self, file_obj, hasher):
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
127 return threads.deferToThread(self._calculateHashBlocking, file_obj, hasher)
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
128
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
129 def calculateHashElt(self, file_obj=None, algo=ALGO_DEFAULT):
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
130 """Compute hash and build hash element
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
131
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
132 @param file_obj(file, None): file-like object to use to calculate the hash
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
133 @param algo(unicode): algorithme to use, must be a key of XEP_0300.ALGOS
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
134 @return (D(domish.Element)): hash element
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
135 """
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
136
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
137 def hashCalculated(hash_):
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
138 return self.buildHashElt(hash_, algo)
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
139
3286
ddf3ded93b78 plugin XEP-0300; fixed use of calculateHash with getHasher
Goffi <goffi@goffi.org>
parents: 3137
diff changeset
140 hasher = self.getHasher(algo)
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
141 hash_d = self.calculateHash(file_obj, hasher)
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
142 hash_d.addCallback(hashCalculated)
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
143 return hash_d
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
144
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
145 def buildHashUsedElt(self, algo=ALGO_DEFAULT):
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
146 hash_used_elt = domish.Element((NS_HASHES, "hash-used"))
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
147 hash_used_elt["algo"] = algo
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
148 return hash_used_elt
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
149
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
150 def parseHashUsedElt(self, parent):
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
151 """Find and parse a hash-used element
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
152
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
153 @param (domish.Element): parent of <hash/> element
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
154 @return (unicode): hash algorithm used
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
155 @raise exceptions.NotFound: the element is not present
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
156 @raise exceptions.DataError: the element is invalid
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
157 """
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
158 try:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
159 hash_used_elt = next(parent.elements(NS_HASHES, "hash-used"))
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
160 except StopIteration:
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
161 raise exceptions.NotFound
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
162 algo = hash_used_elt["algo"]
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
163 if not algo:
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
164 raise exceptions.DataError
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
165 return algo
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
166
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
167 def buildHashElt(self, hash_, algo=ALGO_DEFAULT):
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
168 """Compute hash and build hash element
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
169
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
170 @param hash_(str): hash to use
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
171 @param algo(unicode): algorithme to use, must be a key of XEP_0300.ALGOS
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
172 @return (domish.Element): computed hash
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
173 """
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
174 assert hash_
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
175 assert algo
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
176 hash_elt = domish.Element((NS_HASHES, "hash"))
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
177 if hash_ is not None:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
178 b64_hash = base64.b64encode(hash_.encode('utf-8')).decode('utf-8')
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
179 hash_elt.addContent(b64_hash)
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
180 hash_elt["algo"] = algo
1526
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
181 return hash_elt
bb451fd1cea3 plugin XEP-0300: hashes management first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
182
3916
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
183 def parseHashElt(self, parent: domish.Element) -> Tuple[str, bytes]:
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
184 """Find and parse a hash element
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
185
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
186 if multiple elements are found, the strongest managed one is returned
3916
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
187 @param parent: parent of <hash/> element
40d47cc29ea4 plugin XEP-0300: type hints
Goffi <goffi@goffi.org>
parents: 3479
diff changeset
188 @return: (algo, hash) tuple
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
189 both values can be None if <hash/> is empty
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
190 @raise exceptions.NotFound: the element is not present
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
191 @raise exceptions.DataError: the element is invalid
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
192 """
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
193 algos = list(XEP_0300.ALGOS.keys())
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
194 hash_elt = None
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
195 best_algo = None
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
196 best_value = None
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
197 for hash_elt in parent.elements(NS_HASHES, "hash"):
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
198 algo = hash_elt.getAttribute("algo")
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
199 try:
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
200 idx = algos.index(algo)
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
201 except ValueError:
3040
fee60f17ebac jp: jp asyncio port:
Goffi <goffi@goffi.org>
parents: 3028
diff changeset
202 log.warning(f"Proposed {algo} algorithm is not managed")
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
203 algo = None
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
204 continue
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
205
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
206 if best_algo is None or algos.index(best_algo) < idx:
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
207 best_algo = algo
3040
fee60f17ebac jp: jp asyncio port:
Goffi <goffi@goffi.org>
parents: 3028
diff changeset
208 best_value = base64.b64decode(str(hash_elt)).decode('utf-8')
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
209
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
210 if not hash_elt:
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
211 raise exceptions.NotFound
2502
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
212 if not best_algo or not best_value:
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
213 raise exceptions.DataError
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
214 return best_algo, best_value
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
215
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
216
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
217 @implementer(iwokkel.IDisco)
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
218 class XEP_0300_handler(XMPPHandler):
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
219
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
220 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
221 hash_functions_names = [
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
222 disco.DiscoFeature(NS_HASHES_FUNCTIONS.format(algo))
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
223 for algo in XEP_0300.ALGOS
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
224 ]
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
225 return [disco.DiscoFeature(NS_HASHES)] + hash_functions_names
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
226
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
227 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
1618
0de5f210fe56 plugin XEP-0300: implemented hashing:
Goffi <goffi@goffi.org>
parents: 1526
diff changeset
228 return []