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# Copyright (C) 2020 Philipp Hörist <philipp AT hoerist.com>
#
# This file is part of nbxmpp.
#
# This program 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; 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; If not, see <http://www.gnu.org/licenses/>.
from nbxmpp.protocol import JID
from nbxmpp.protocol import Iq
from nbxmpp.protocol import Node
from nbxmpp.namespaces import Namespace
from nbxmpp.structs import MAMQueryData
from nbxmpp.structs import MAMPreferencesData
from nbxmpp.task import iq_request_task
from nbxmpp.errors import StanzaError
from nbxmpp.errors import MalformedStanzaError
from nbxmpp.modules.base import BaseModule
from nbxmpp.modules.rsm import parse_rsm
from nbxmpp.modules.dataforms import SimpleDataForm
from nbxmpp.modules.dataforms import create_field
from nbxmpp.modules.util import process_response
class MAM(BaseModule):
def __init__(self, client):
BaseModule.__init__(self, client)
self._client = client
self.handlers = []
@iq_request_task
def make_query(self,
jid,
queryid=None,
start=None,
end=None,
with_=None,
after=None,
max_=70):
_task = yield
response = yield _make_request(jid, queryid,
start, end, with_, after, max_)
if response.isError():
raise StanzaError(response)
jid = response.getFrom()
fin = response.getTag('fin', namespace=Namespace.MAM_2)
if fin is None:
raise MalformedStanzaError('fin node missing', response)
rsm = parse_rsm(fin)
if rsm is None:
raise MalformedStanzaError('rsm set missing', response)
complete = fin.getAttr('complete') == 'true'
if not complete:
if rsm.first is None or rsm.last is None:
raise MalformedStanzaError('first or last element missing',
response)
yield MAMQueryData(jid=jid,
complete=complete,
rsm=rsm)
@iq_request_task
def request_preferences(self):
_task = yield
response = yield _make_pref_request()
if response.isError():
raise StanzaError(response)
prefs = response.getTag('prefs', namespace=Namespace.MAM_2)
if prefs is None:
raise MalformedStanzaError('prefs node missing', response)
default = prefs.getAttr('default')
if default is None:
raise MalformedStanzaError('default attr missing', response)
always_node = prefs.getTag('always')
if always_node is None:
raise MalformedStanzaError('always node missing', response)
always = _get_preference_jids(always_node)
never_node = prefs.getTag('never')
if never_node is None:
raise MalformedStanzaError('never node missing', response)
never = _get_preference_jids(never_node)
yield MAMPreferencesData(default=default,
always=always,
never=never)
@iq_request_task
def set_preferences(self, default, always, never):
_task = yield
if default not in ('always', 'never', 'roster'):
raise ValueError('Wrong default preferences type')
response = yield _make_set_pref_request(default, always, never)
yield process_response(response)
def _make_query_form(start, end, with_):
fields = [
create_field(typ='hidden', var='FORM_TYPE', value=Namespace.MAM_2)
]
if start:
fields.append(create_field(
typ='text-single',
var='start',
value=start.strftime('%Y-%m-%dT%H:%M:%SZ')))
if end:
fields.append(create_field(
typ='text-single',
var='end',
value=end.strftime('%Y-%m-%dT%H:%M:%SZ')))
if with_:
fields.append(create_field(
typ='jid-single',
var='with',
value=with_))
return SimpleDataForm(type_='submit', fields=fields)
def _make_rsm_query(max_, after):
rsm_set = Node('set', attrs={'xmlns': Namespace.RSM})
if max_ is not None:
rsm_set.setTagData('max', max_)
if after is not None:
rsm_set.setTagData('after', after)
return rsm_set
def _make_request(jid, queryid, start, end, with_, after, max_):
iq = Iq(typ='set', to=jid, queryNS=Namespace.MAM_2)
if queryid is not None:
iq.getQuery().setAttr('queryid', queryid)
payload = [
_make_query_form(start, end, with_),
_make_rsm_query(max_, after)
]
iq.setQueryPayload(payload)
return iq
def _make_pref_request():
iq = Iq('get', queryNS=Namespace.MAM_2)
iq.setQuery('prefs')
return iq
def _get_preference_jids(node):
jids = []
for item in node.getTags('jid'):
jid = item.getData()
if not jid:
continue
try:
jid = JID.from_string(jid)
except Exception:
continue
jids.append(jid)
return jids
def _make_set_pref_request(default, always, never):
iq = Iq(typ='set')
prefs = iq.addChild(name='prefs',
namespace=Namespace.MAM_2,
attrs={'default': default})
always_node = prefs.addChild(name='always')
never_node = prefs.addChild(name='never')
for jid in always:
always_node.addChild(name='jid').setData(jid)
for jid in never:
never_node.addChild(name='jid').setData(jid)
return iq
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