Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_xep_0080.py @ 4165:81faa85c9cfa

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author Goffi <goffi@goffi.org>
date Tue, 28 Nov 2023 17:41:49 +0100
parents 4b842c1fb686
children 0d7bb4df2343
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ed470361ea2e plugin XEP-0080: User Location implementation:
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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 Dict, Any
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19
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20 from twisted.words.xish import domish
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21
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22 from libervia.backend.core.constants import Const as C
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23 from libervia.backend.core.i18n import _
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24 from libervia.backend.core.log import getLogger
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25 from libervia.backend.core import exceptions
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26 from libervia.backend.tools import utils
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27
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28 log = getLogger(__name__)
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29
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30
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31 PLUGIN_INFO = {
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32 C.PI_NAME: "User Location",
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33 C.PI_IMPORT_NAME: "XEP-0080",
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34 C.PI_TYPE: "XEP",
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35 C.PI_MODES: C.PLUG_MODE_BOTH,
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36 C.PI_PROTOCOLS: ["XEP-0080"],
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37 C.PI_MAIN: "XEP_0080",
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38 C.PI_HANDLER: "no",
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39 C.PI_DESCRIPTION: _("""Implementation of XEP-0080 (User Location)"""),
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40 }
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41
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42 NS_GEOLOC = "http://jabber.org/protocol/geoloc"
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43 KEYS_TYPES = {
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44 "accuracy": float,
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45 "alt": float,
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46 "altaccuracy": float,
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47 "area": str,
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48 "bearing": float,
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49 "building": str,
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50 "country": str,
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51 "countrycode": str,
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52 "datum": str,
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53 "description": str,
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54 "error": float,
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55 "floor": str,
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56 "lat": float,
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57 "locality": str,
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58 "lon": float,
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59 "postalcode": str,
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60 "region": str,
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61 "room": str,
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62 "speed": float,
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63 "street": str,
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64 "text": str,
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65 "timestamp": "datetime",
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66 "tzo": str,
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67 "uri": str
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68 }
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69
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70
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71 class XEP_0080:
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72
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73 def __init__(self, host):
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74 log.info(_("XEP-0080 (User Location) plugin initialization"))
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75 host.register_namespace("geoloc", NS_GEOLOC)
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76
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77 def get_geoloc_elt(
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78 self,
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79 location_data: Dict[str, Any],
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80 ) -> domish.Element:
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81 """Generate the element describing the location
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82
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83 @param geoloc: metadata description the location
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84 Keys correspond to ones found at
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85 https://xmpp.org/extensions/xep-0080.html#format, with following additional
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86 keys:
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87 - id (str): Identifier for this location
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88 - language (str): language of the human readable texts
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89 All keys are optional.
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90 @return: ``<geoloc/>`` element
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91 """
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92 geoloc_elt = domish.Element((NS_GEOLOC, "geoloc"))
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93 for key, value in location_data.items():
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94 try:
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95 key_type = KEYS_TYPES[key]
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96 except KeyError:
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97 if key == "id":
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98 # "id" attribute is not specified for XEP-0080's <geoloc/> element,
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99 # but it may be used in a parent element (that's the case for events)
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100 pass
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101 elif key == "language":
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102 geoloc_elt["xml:lang"] = value
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103 else:
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104 log.warning(f"Unknown location key {key}: {location_data}")
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105 continue
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106 if key_type == "datetime":
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107 content = utils.xmpp_date(value)
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108 else:
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109 content = str(value)
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110 geoloc_elt.addElement(key, content=content)
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111
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112 return geoloc_elt
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113
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114 def parse_geoloc_elt(
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115 self,
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116 geoloc_elt: domish.Element
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117 ) -> Dict[str, Any]:
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118 """Parse <geoloc/> element
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119
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120 @param geoloc_elt: <geoloc/> element
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121 a parent element can also be used
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122 @return: geoloc data. It's a dict whose keys correspond to
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123 [get_geoloc_elt] parameters
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124 @raise exceptions.NotFound: no <geoloc/> element has been found
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125 """
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126
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127 if geoloc_elt.name != "geoloc":
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128 try:
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129 geoloc_elt = next(geoloc_elt.elements(NS_GEOLOC, "geoloc"))
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130 except StopIteration:
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131 raise exceptions.NotFound
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132 data: Dict[str, Any] = {}
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133 for elt in geoloc_elt.elements():
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134 if elt.uri != NS_GEOLOC:
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135 log.warning(f"unmanaged geoloc element: {elt.toXml()}")
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136 continue
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137 try:
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138 data_type = KEYS_TYPES[elt.name]
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139 except KeyError:
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140 log.warning(f"unknown geoloc element: {elt.toXml()}")
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141 continue
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142 try:
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143 if data_type == "datetime":
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144 data[elt.name] = utils.parse_xmpp_date(str(elt))
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145 else:
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146 data[elt.name] = data_type(str(elt))
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147 except Exception as e:
ed470361ea2e plugin XEP-0080: User Location implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
148 log.warning(f"can't parse element: {elt.toXml()}")
ed470361ea2e plugin XEP-0080: User Location implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
149 continue
ed470361ea2e plugin XEP-0080: User Location implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
150
ed470361ea2e plugin XEP-0080: User Location implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
151 return data