--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/backend/plugins/plugin_xep_0080.py	Fri Jun 02 11:49:51 2023 +0200
@@ -0,0 +1,151 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Dict, Any
+
+from twisted.words.xish import domish
+
+from libervia.backend.core.constants import Const as C
+from libervia.backend.core.i18n import _
+from libervia.backend.core.log import getLogger
+from libervia.backend.core import exceptions
+from libervia.backend.tools import utils
+
+log = getLogger(__name__)
+
+
+PLUGIN_INFO = {
+    C.PI_NAME: "User Location",
+    C.PI_IMPORT_NAME: "XEP-0080",
+    C.PI_TYPE: "XEP",
+    C.PI_MODES: C.PLUG_MODE_BOTH,
+    C.PI_PROTOCOLS: ["XEP-0080"],
+    C.PI_MAIN: "XEP_0080",
+    C.PI_HANDLER: "no",
+    C.PI_DESCRIPTION: _("""Implementation of XEP-0080 (User Location)"""),
+}
+
+NS_GEOLOC = "http://jabber.org/protocol/geoloc"
+KEYS_TYPES = {
+    "accuracy": float,
+    "alt": float,
+    "altaccuracy": float,
+    "area": str,
+    "bearing": float,
+    "building": str,
+    "country": str,
+    "countrycode": str,
+    "datum": str,
+    "description": str,
+    "error": float,
+    "floor": str,
+    "lat": float,
+    "locality": str,
+    "lon": float,
+    "postalcode": str,
+    "region": str,
+    "room": str,
+    "speed": float,
+    "street": str,
+    "text": str,
+    "timestamp": "datetime",
+    "tzo": str,
+    "uri": str
+}
+
+
+class XEP_0080:
+
+    def __init__(self, host):
+        log.info(_("XEP-0080 (User Location) plugin initialization"))
+        host.register_namespace("geoloc", NS_GEOLOC)
+
+    def get_geoloc_elt(
+        self,
+        location_data: Dict[str, Any],
+    ) -> domish.Element:
+        """Generate the element describing the location
+
+        @param geoloc: metadata description the location
+            Keys correspond to ones found at
+            https://xmpp.org/extensions/xep-0080.html#format, with following additional
+            keys:
+                - id (str): Identifier for this location
+                - language (str): language of the human readable texts
+            All keys are optional.
+        @return: ``<geoloc/>`` element
+        """
+        geoloc_elt = domish.Element((NS_GEOLOC, "geoloc"))
+        for key, value in location_data.items():
+            try:
+                key_type = KEYS_TYPES[key]
+            except KeyError:
+                if key == "id":
+                    # "id" attribute is not specified for XEP-0080's <geoloc/> element,
+                    # but it may be used in a parent element (that's the case for events)
+                    pass
+                elif key == "language":
+                    geoloc_elt["xml:lang"] = value
+                else:
+                    log.warning(f"Unknown location key {key}: {location_data}")
+                continue
+            if key_type == "datetime":
+                content = utils.xmpp_date(value)
+            else:
+                content = str(value)
+            geoloc_elt.addElement(key, content=content)
+
+        return geoloc_elt
+
+    def parse_geoloc_elt(
+        self,
+        geoloc_elt: domish.Element
+    ) -> Dict[str, Any]:
+        """Parse <geoloc/> element
+
+        @param geoloc_elt: <geoloc/> element
+            a parent element can also be used
+        @return: geoloc data. It's a dict whose keys correspond to
+            [get_geoloc_elt] parameters
+        @raise exceptions.NotFound: no <geoloc/> element has been found
+        """
+
+        if geoloc_elt.name != "geoloc":
+            try:
+                geoloc_elt = next(geoloc_elt.elements(NS_GEOLOC, "geoloc"))
+            except StopIteration:
+                raise exceptions.NotFound
+        data: Dict[str, Any] = {}
+        for elt in geoloc_elt.elements():
+            if elt.uri != NS_GEOLOC:
+                log.warning(f"unmanaged geoloc element: {elt.toXml()}")
+                continue
+            try:
+                data_type = KEYS_TYPES[elt.name]
+            except KeyError:
+                log.warning(f"unknown geoloc element: {elt.toXml()}")
+                continue
+            try:
+                if data_type == "datetime":
+                    data[elt.name] = utils.parse_xmpp_date(str(elt))
+                else:
+                    data[elt.name] = data_type(str(elt))
+            except Exception as e:
+                log.warning(f"can't parse element: {elt.toXml()}")
+                continue
+
+        return data