annotate sat/plugins/plugin_xep_0106.py @ 2971:dbf24ba40396 0.7.0b3

0.7.0b3 release
author Goffi <goffi@goffi.org>
date Thu, 27 Jun 2019 20:27:34 +0200
parents 28c969432557
children ab2696e34d29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2922
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python2
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
2 # -*- coding: utf-8 -*-
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
3
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
4 # SAT plugin for Explicit Message Encryption
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
6
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
7 # This program is free software: you can redistribute it and/or modify
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
8 # it under the terms of the GNU Affero General Public License as published by
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
9 # the Free Software Foundation, either version 3 of the License, or
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
10 # (at your option) any later version.
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
11
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
12 # This program is distributed in the hope that it will be useful,
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
15 # GNU Affero General Public License for more details.
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
16
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
17 # You should have received a copy of the GNU Affero General Public License
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
19
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
20 from sat.core.i18n import _
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
21 from sat.core.constants import Const as C
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
22 from sat.core.log import getLogger
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
23 from twisted.words.protocols.jabber import xmlstream
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
24 from zope.interface import implements
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
25 from wokkel import disco
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
26
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
27 log = getLogger(__name__)
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
28
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
29 PLUGIN_INFO = {
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
30 C.PI_NAME: u"JID Escaping",
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
31 C.PI_IMPORT_NAME: u"XEP-0106",
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
32 C.PI_TYPE: u"XEP",
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
33 C.PI_MODES: C.PLUG_MODE_BOTH,
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
34 C.PI_PROTOCOLS: [u"XEP-0106"],
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
35 C.PI_DEPENDENCIES: [],
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
36 C.PI_MAIN: u"XEP_0106",
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
37 C.PI_HANDLER: u"yes",
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
38 C.PI_DESCRIPTION: _(u"""(Un)escape JID to use disallowed chars in local parts"""),
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
39 }
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
40
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
41 NS_JID_ESCAPING = ur"jid\20escaping"
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
42 ESCAPE_MAP = {
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
43 ' ': r'\20',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
44 '"': r'\22',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
45 '&': r'\26',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
46 "'": r'\27',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
47 '/': r'\2f',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
48 ':': r'\3a',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
49 '<': r'\3c',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
50 '>': r'\3e',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
51 '@': r'\40',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
52 '\\': r'\5c',
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
53 }
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
54
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
55
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
56 class XEP_0106(object):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
57
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
58 def __init__(self, host):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
59 self.reverse_map = {v:k for k,v in ESCAPE_MAP.iteritems()}
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
60
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
61 def getHandler(self, client):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
62 return XEP_0106_handler()
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
63
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
64 def escape(self, text):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
65 """Escape text
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
66
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
67 @param text(unicode): text to escape
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
68 @return (unicode): escaped text
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
69 @raise ValueError: text can't be escaped
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
70 """
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
71 if not text or text[0] == ' ' or text[-1] == ' ':
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
72 raise ValueError(u"text must not be empty, or start or end with a whitespace")
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
73 escaped = []
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
74 for c in text:
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
75 if c in ESCAPE_MAP:
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
76 escaped.append(ESCAPE_MAP[c])
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
77 else:
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
78 escaped.append(c)
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
79 return u''.join(escaped)
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
80
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
81 def unescape(self, escaped):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
82 """Unescape text
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
83
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
84 @param escaped(unicode): text to unescape
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
85 @return (unicode): unescaped text
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
86 @raise ValueError: text can't be unescaped
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
87 """
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
88 if not escaped or escaped.startswith(r'\27') or escaped.endswith(r'\27'):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
89 raise ValueError(u"escaped value must not be empty, or start or end with a "
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
90 u"whitespace")
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
91 unescaped = []
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
92 idx = 0
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
93 while idx < len(escaped):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
94 char_seq = escaped[idx:idx+3]
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
95 if char_seq in self.reverse_map:
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
96 unescaped.append(self.reverse_map[char_seq])
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
97 idx += 3
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
98 else:
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
99 unescaped.append(escaped[idx])
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
100 idx += 1
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
101 return u''.join(unescaped)
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
102
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
103
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
104 class XEP_0106_handler(xmlstream.XMPPHandler):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
105 implements(disco.IDisco)
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
106
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
107 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
108 return [disco.DiscoFeature(NS_JID_ESCAPING)]
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
109
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
110 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
28c969432557 plugin XEP-0106: jid escaping implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
111 return []