Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_xep_0428.py @ 4242:8acf46ed7f36

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frontends: remote control implementation: This is the frontends common part of remote control implementation. It handle the creation of WebRTC session, and management of inputs. For now the reception use freedesktop.org Desktop portal, and works mostly with Wayland based Desktop Environments. rel 436
author Goffi <goffi@goffi.org>
date Sat, 11 May 2024 13:52:43 +0200
parents a1f7040b5a15
children 0d7bb4df2343
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1 #!/usr/bin/env python3
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2
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3 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
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4
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5 # This program is free software: you can redistribute it and/or modify
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6 # it under the terms of the GNU Affero General Public License as published by
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7 # the Free Software Foundation, either version 3 of the License, or
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8 # (at your option) any later version.
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9
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10 # This program is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU Affero General Public License for more details.
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14
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15 # You should have received a copy of the GNU Affero General Public License
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16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
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18 from typing import Optional
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19
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20 from twisted.words.protocols.jabber import xmlstream
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21 from twisted.words.xish import domish
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22 from wokkel import disco
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23 from zope.interface import implementer
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24
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25 from libervia.backend.core.constants import Const as C
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26 from libervia.backend.core.i18n import _
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27 from libervia.backend.core.log import getLogger
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28
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29 log = getLogger(__name__)
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30
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31
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32 PLUGIN_INFO = {
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33 C.PI_NAME: "Fallback Indication",
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34 C.PI_IMPORT_NAME: "XEP-0428",
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35 C.PI_TYPE: "XEP",
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36 C.PI_MODES: C.PLUG_MODE_BOTH,
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37 C.PI_PROTOCOLS: ["XEP-0428"],
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38 C.PI_MAIN: "XEP_0428",
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39 C.PI_HANDLER: "yes",
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40 C.PI_DESCRIPTION: _("""Implementation of XEP-0428 (Fallback Indication)"""),
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41 }
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42
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43 NS_FALLBACK = "urn:xmpp:fallback:0"
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44
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45
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46 class XEP_0428(object):
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47
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48 def __init__(self, host):
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49 log.info(_("XEP-0428 (Fallback Indication) plugin initialization"))
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50 host.register_namespace("fallback", NS_FALLBACK)
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51
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52 def add_fallback_elt(
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53 self,
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54 message_elt: domish.Element,
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55 msg: Optional[str] = None
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56 ) -> None:
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57 """Add the fallback indication element
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58
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59 @param message_elt: <message> element where the indication must be
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60 set
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61 @param msg: message to show as fallback
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62 Will be added as <body>
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63 """
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64 message_elt.addElement((NS_FALLBACK, "fallback"))
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65 if msg is not None:
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66 message_elt.addElement("body", content=msg)
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67
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68 def has_fallback(self, message_elt: domish.Element) -> bool:
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69 """Tell if a message has a fallback indication"""
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70 try:
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71 next(message_elt.elements(NS_FALLBACK, "fallback"))
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72 except StopIteration:
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73 return False
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74 else:
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75 return True
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76
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77 def get_handler(self, __):
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78 return XEP_0428_handler()
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79
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80
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81 @implementer(disco.IDisco)
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82 class XEP_0428_handler(xmlstream.XMPPHandler):
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83
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84 def getDiscoInfo(self, __, target, nodeIdentifier=""):
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85 return [disco.DiscoFeature(NS_FALLBACK)]
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86
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87 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
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88 return []