--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/backend/plugins/plugin_tmp_directory_subscription.py	Fri Jun 02 11:49:51 2023 +0200
@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+
+
+# SAT plugin for directory subscription
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Jérôme Poisson (goffi@goffi.org)
+# Copyright (C) 2015, 2016 Adrien Cossa (souliane@mailoo.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 libervia.backend.core.i18n import _, D_
+from libervia.backend.core.constants import Const as C
+from libervia.backend.core.log import getLogger
+
+log = getLogger(__name__)
+
+
+PLUGIN_INFO = {
+    C.PI_NAME: "Directory subscription plugin",
+    C.PI_IMPORT_NAME: "DIRECTORY-SUBSCRIPTION",
+    C.PI_TYPE: "TMP",
+    C.PI_PROTOCOLS: [],
+    C.PI_DEPENDENCIES: ["XEP-0050", "XEP-0055"],
+    C.PI_RECOMMENDATIONS: [],
+    C.PI_MAIN: "DirectorySubscription",
+    C.PI_HANDLER: "no",
+    C.PI_DESCRIPTION: _("""Implementation of directory subscription"""),
+}
+
+
+NS_COMMANDS = "http://jabber.org/protocol/commands"
+CMD_UPDATE_SUBSCRIBTION = "update"
+
+
+class DirectorySubscription(object):
+    def __init__(self, host):
+        log.info(_("Directory subscription plugin initialization"))
+        self.host = host
+        host.import_menu(
+            (D_("Service"), D_("Directory subscription")),
+            self.subscribe,
+            security_limit=1,
+            help_string=D_("User directory subscription"),
+        )
+
+    def subscribe(self, raw_data, profile):
+        """Request available commands on the jabber search service associated to profile's host.
+
+        @param raw_data (dict): data received from the frontend
+        @param profile (unicode): %(doc_profile)s
+        @return: a deferred dict{unicode: unicode}
+        """
+        d = self.host.plugins["XEP-0055"]._get_host_services(profile)
+
+        def got_services(services):
+            service_jid = services[0]
+            session_id, session_data = self.host.plugins[
+                "XEP-0050"
+            ].requesting.new_session(profile=profile)
+            session_data["jid"] = service_jid
+            session_data["node"] = CMD_UPDATE_SUBSCRIBTION
+            data = {"session_id": session_id}
+            return self.host.plugins["XEP-0050"]._requesting_entity(data, profile)
+
+        return d.addCallback(got_services)