9578053 Jan 22 2022 distfiles.gentoo.org/distfiles/gajim-1.3.3-2.tar.gz

gajim/common/modules/blocking.py

@@ -0,0 +1,139 @@
+# This file is part of Gajim.
+#
+# Gajim is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published
+# by the Free Software Foundation; version 3 only.
+#
+# Gajim 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Gajim.  If not, see <http://www.gnu.org/licenses/>.
+
+# XEP-0191: Blocking Command
+
+import nbxmpp
+from nbxmpp.protocol import JID
+from nbxmpp.namespaces import Namespace
+from nbxmpp.structs import StanzaHandler
+from nbxmpp.modules.util import raise_if_error
+
+from gajim.common import app
+from gajim.common.nec import NetworkEvent
+from gajim.common.modules.base import BaseModule
+from gajim.common.modules.util import as_task
+
+
+class Blocking(BaseModule):
+
+    _nbxmpp_extends = 'Blocking'
+    _nbxmpp_methods = [
+        'block',
+        'unblock',
+        'request_blocking_list',
+    ]
+
+    def __init__(self, con):
+        BaseModule.__init__(self, con)
+
+        self.blocked = []
+
+        self.handlers = [
+            StanzaHandler(name='iq',
+                          callback=self._blocking_push_received,
+                          typ='set',
+                          ns=Namespace.BLOCKING),
+        ]
+
+        self.supported = False
+
+    def pass_disco(self, info):
+        if Namespace.BLOCKING not in info.features:
+            return
+
+        self.supported = True
+        app.nec.push_incoming_event(
+            NetworkEvent('feature-discovered',
+                         account=self._account,
+                         feature=Namespace.BLOCKING))
+
+        self._log.info('Discovered blocking: %s', info.jid)
+
+    @as_task
+    def get_blocking_list(self):
+        _task = yield
+
+        blocking_list = yield self._nbxmpp('Blocking').request_blocking_list()
+
+        raise_if_error(blocking_list)
+
+        self.blocked = list(blocking_list)
+        app.nec.push_incoming_event(NetworkEvent('blocking',
+                                                 conn=self._con,
+                                                 changed=self.blocked))
+        yield blocking_list
+
+    @as_task
+    def update_blocking_list(self, block, unblock):
+        _task = yield
+
+        if block:
+            result = yield self.block(block)
+            raise_if_error(result)
+
+        if unblock:
+            result = yield self.unblock(unblock)
+            raise_if_error(result)
+
+        yield True
+
+    def _blocking_push_received(self, _con, _stanza, properties):
+        if not properties.is_blocking:
+            return
+
+        changed_list = []
+
+        if properties.blocking.unblock_all:
+            self.blocked = []
+            for jid in self.blocked:
+                self._presence_probe(jid)
+            self._log.info('Unblock all Push')
+
+        for jid in properties.blocking.unblock:
+            changed_list.append(jid)
+            if jid not in self.blocked:
+                continue
+            self.blocked.remove(jid)
+            self._presence_probe(jid)
+            self._log.info('Unblock Push: %s', jid)
+
+        for jid in properties.blocking.block:
+            if jid in self.blocked:
+                continue
+            changed_list.append(jid)
+            self.blocked.append(jid)
+            self._set_contact_offline(str(jid))
+            self._log.info('Block Push: %s', jid)
+
+        app.nec.push_incoming_event(NetworkEvent('blocking',
+                                                 conn=self._con,
+                                                 changed=changed_list))
+
+        raise nbxmpp.NodeProcessed
+
+    def _set_contact_offline(self, jid: str) -> None:
+        contact_list = app.contacts.get_contacts(self._account, jid)
+        for contact in contact_list:
+            contact.show = 'offline'
+
+    def _presence_probe(self, jid: JID) -> None:
+        self._log.info('Presence probe: %s', jid)
+        # Send a presence Probe to get the current Status
+        probe = nbxmpp.Presence(jid, 'probe', frm=self._con.get_own_jid())
+        self._nbxmpp().send(probe)
+
+
+def get_instance(*args, **kwargs):
+    return Blocking(*args, **kwargs), 'Blocking'