--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/backend/plugins/plugin_exp_pubsub_admin.py	Fri Jun 02 11:49:51 2023 +0200
@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+
+
+# SAT plugin to send pubsub requests with administrator privilege
+# Copyright (C) 2009-2021 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 libervia.backend.core.i18n import _
+from libervia.backend.core import exceptions
+from libervia.backend.core.constants import Const as C
+from libervia.backend.core.log import getLogger
+from libervia.backend.tools.common import data_format
+from twisted.words.protocols.jabber import jid
+from wokkel import pubsub
+from wokkel import generic
+
+log = getLogger(__name__)
+
+PLUGIN_INFO = {
+    C.PI_NAME: "Pubsub Administrator",
+    C.PI_IMPORT_NAME: "PUBSUB_ADMIN",
+    C.PI_TYPE: C.PLUG_TYPE_EXP,
+    C.PI_PROTOCOLS: [],
+    C.PI_DEPENDENCIES: [],
+    C.PI_RECOMMENDATIONS: [],
+    C.PI_MAIN: "PubsubAdmin",
+    C.PI_HANDLER: "no",
+    C.PI_DESCRIPTION: _("""\Implementation of Pubsub Administrator
+This allows a pubsub administrator to overwrite completly items, including publisher.
+Specially useful when importing a node."""),
+}
+
+NS_PUBSUB_ADMIN = "https://salut-a-toi.org/spec/pubsub_admin:0"
+
+
+class PubsubAdmin(object):
+
+    def __init__(self, host):
+        self.host = host
+        host.bridge.add_method(
+            "ps_admin_items_send",
+            ".plugin",
+            in_sign="ssasss",
+            out_sign="as",
+            method=self._publish,
+            async_=True,
+        )
+
+    def _publish(self, service, nodeIdentifier, items, extra=None,
+                 profile_key=C.PROF_KEY_NONE):
+        client = self.host.get_client(profile_key)
+        service = None if not service else jid.JID(service)
+        extra = data_format.deserialise(extra)
+        items = [generic.parseXml(i.encode('utf-8')) for i in items]
+        return self.publish(
+            client, service, nodeIdentifier, items, extra
+        )
+
+    def _send_cb(self, iq_result):
+        publish_elt = iq_result.admin.pubsub.publish
+        ids = []
+        for item_elt in publish_elt.elements(pubsub.NS_PUBSUB, 'item'):
+            ids.append(item_elt['id'])
+        return ids
+
+    def publish(self, client, service, nodeIdentifier, items, extra=None):
+        for item in items:
+            if item.name != 'item' or item.uri != pubsub.NS_PUBSUB:
+                raise exceptions.DataError(
+                    'Invalid element, a pubsub item is expected: {xml}'.format(
+                    xml=item.toXml()))
+        iq_elt = client.IQ()
+        iq_elt['to'] = service.full() if service else client.jid.userhost()
+        admin_elt = iq_elt.addElement((NS_PUBSUB_ADMIN, 'admin'))
+        pubsub_elt = admin_elt.addElement((pubsub.NS_PUBSUB, 'pubsub'))
+        publish_elt = pubsub_elt.addElement('publish')
+        publish_elt['node'] = nodeIdentifier
+        for item in items:
+            publish_elt.addChild(item)
+        d = iq_elt.send()
+        d.addCallback(self._send_cb)
+        return d