Mercurial > libervia-backend
annotate sat/plugins/plugin_xep_0359.py @ 3295:9bc3fca290ab
core: findByFeatures type hints
author | Goffi <goffi@goffi.org> |
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date | Tue, 09 Jun 2020 06:16:52 +0200 |
parents | 559a625a236b |
children | be6d91572633 |
rev | line source |
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3028 | 1 #!/usr/bin/env python3 |
3137 | 2 |
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3 |
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4 # SAT plugin for Message Archive Management (XEP-0359) |
3136 | 5 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org) |
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6 # Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.org) |
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7 |
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8 # This program is free software: you can redistribute it and/or modify |
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9 # it under the terms of the GNU Affero General Public License as published by |
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10 # the Free Software Foundation, either version 3 of the License, or |
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11 # (at your option) any later version. |
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12 |
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13 # This program is distributed in the hope that it will be useful, |
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 # GNU Affero General Public License for more details. |
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17 |
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18 # You should have received a copy of the GNU Affero General Public License |
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 |
3103 | 21 import uuid |
22 from zope.interface import implementer | |
23 from twisted.words.protocols.jabber import xmlstream | |
24 from wokkel import disco | |
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25 from sat.core.constants import Const as C |
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26 from sat.core import exceptions |
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27 from sat.core.i18n import _ |
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28 from sat.core.log import getLogger |
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29 |
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30 log = getLogger(__name__) |
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31 |
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32 |
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33 PLUGIN_INFO = { |
3028 | 34 C.PI_NAME: "Unique and Stable Stanza IDs", |
35 C.PI_IMPORT_NAME: "XEP-0359", | |
36 C.PI_TYPE: "XEP", | |
37 C.PI_PROTOCOLS: ["XEP-0359"], | |
38 C.PI_MAIN: "XEP_0359", | |
39 C.PI_HANDLER: "yes", | |
40 C.PI_DESCRIPTION: _("""Implementation of Unique and Stable Stanza IDs"""), | |
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41 } |
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42 |
3028 | 43 NS_SID = "urn:xmpp:sid:0" |
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44 |
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45 |
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46 class XEP_0359(object): |
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47 |
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48 def __init__(self, host): |
3028 | 49 log.info(_("Unique and Stable Stanza IDs plugin initialization")) |
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50 self.host = host |
3028 | 51 host.registerNamespace("stanza_id", NS_SID) |
52 host.trigger.add("message_parse", self._message_parseTrigger) | |
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53 |
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54 def _message_parseTrigger(self, client, message_elt, mess_data): |
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55 """Check if message has a stanza-id""" |
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56 stanza_id = self.getStanzaId(message_elt, client.jid.userhostJID()) |
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57 if stanza_id is not None: |
3028 | 58 mess_data['extra']['stanza_id'] = stanza_id |
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59 return True |
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60 |
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61 def getStanzaId(self, element, by): |
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62 """Return stanza-id if found in element |
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63 |
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64 @param element(domish.Element): element to parse |
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65 @param by(jid.JID): entity which should have set a stanza-id |
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66 @return (unicode, None): stanza-id if found |
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67 """ |
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68 stanza_id = None |
3028 | 69 for stanza_elt in element.elements(NS_SID, "stanza-id"): |
70 if stanza_elt.getAttribute("by") == by.full(): | |
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71 if stanza_id is not None: |
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72 # we must not have more than one element (§3 #4) |
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73 raise exceptions.DataError( |
3028 | 74 "More than one corresponding stanza-id found!") |
75 stanza_id = stanza_elt.getAttribute("id") | |
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76 # we don't break to be sure that there is no more than one element |
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77 # with this "by" attribute |
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78 |
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79 return stanza_id |
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80 |
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81 def addStanzaId(self, client, element, stanza_id, by=None): |
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82 """Add a <stanza-id/> to a stanza |
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83 |
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84 @param element(domish.Element): stanza where the <stanza-id/> must be added |
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85 @param stanza_id(unicode): id to use |
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86 @param by(jid.JID, None): jid to use or None to use client.jid |
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87 """ |
3028 | 88 sid_elt = element.addElement((NS_SID, "stanza-id")) |
89 sid_elt["by"] = client.jid.userhost() if by is None else by.userhost() | |
90 sid_elt["id"] = stanza_id | |
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91 |
3103 | 92 def getOriginId(self, element): |
93 """Return origin-id if found in element | |
94 | |
95 @param element(domish.Element): element to parse | |
96 @return (unicode, None): origin-id if found | |
97 """ | |
98 try: | |
99 origin_elt = next(element.elements(NS_SID, "origin-id")) | |
100 except StopIteration: | |
101 return None | |
102 else: | |
103 return origin_elt.getAttribute("id") | |
104 | |
105 def addOriginId(self, element, origin_id=None): | |
106 """Add a <origin-id/> to a stanza | |
107 | |
108 @param element(domish.Element): stanza where the <origin-id/> must be added | |
109 @param origin_id(str): id to use, None to automatically generate | |
110 @return (str): origin_id | |
111 """ | |
112 if origin_id is None: | |
113 origin_id = str(uuid.uuid4()) | |
114 sid_elt = element.addElement((NS_SID, "origin-id")) | |
115 sid_elt["id"] = origin_id | |
116 return origin_id | |
117 | |
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118 def getHandler(self, client): |
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119 return XEP_0359_handler() |
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120 |
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121 |
3028 | 122 @implementer(disco.IDisco) |
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123 class XEP_0359_handler(xmlstream.XMPPHandler): |
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124 |
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125 def getDiscoInfo(self, requestor, target, nodeIdentifier=""): |
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126 return [disco.DiscoFeature(NS_SID)] |
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127 |
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128 def getDiscoItems(self, requestor, target, nodeIdentifier=""): |
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129 return [] |