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# Copyright (C) 2018 Philipp Hörist <philipp AT hoerist.com>
#
# This file is part of nbxmpp.
#
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import annotations
from typing import TYPE_CHECKING
import datetime as dt
import logging
from nbxmpp.modules.base import BaseModule
from nbxmpp.modules.date_and_time import parse_datetime
from nbxmpp.namespaces import Namespace
from nbxmpp.protocol import Message
from nbxmpp.protocol import Presence
from nbxmpp.structs import MessageProperties
from nbxmpp.structs import PresenceProperties
from nbxmpp.structs import StanzaHandler
if TYPE_CHECKING:
from nbxmpp.client import Client
log = logging.getLogger("nbxmpp.m.delay")
class Delay(BaseModule):
def __init__(self, client: Client) -> None:
BaseModule.__init__(self, client)
self._client = client
self.handlers = [
StanzaHandler(
name="message",
callback=self._process_message_delay,
ns=Namespace.DELAY2,
priority=15,
),
StanzaHandler(
name="presence",
callback=self._process_presence_delay,
ns=Namespace.DELAY2,
priority=15,
),
]
def _process_message_delay(
self, _client: Client, stanza: Message, properties: MessageProperties
) -> None:
# Determine if delay is from the server
# Some servers use the bare jid, others the domain
our_jid = self._client.get_bound_jid()
jids = [our_jid.bare, our_jid.domain]
if properties.from_muc:
muc_jid = properties.jid
jids += [muc_jid.bare, muc_jid.domain]
if properties.is_muc_subject:
# MUC Subjects can have a delay timestamp
# to indicate when the user has set the subject,
# the 'from' attr on these delays is the MUC server
# but we treat it as user timestamp
properties.user_timestamp = parse_delay(stanza, from_=jids)
else:
server_delay = parse_delay(stanza, from_=jids)
if server_delay is not None:
properties.has_server_delay = True
properties.timestamp = server_delay
properties.user_timestamp = parse_delay(stanza, not_from=jids)
@staticmethod
def _process_presence_delay(
_client: Client, stanza: Presence, properties: PresenceProperties
) -> None:
properties.user_timestamp = parse_delay(stanza)
def parse_delay(
stanza: Message | Presence,
epoch: bool = True,
convert: str = "utc",
from_: list[str] | None = None,
not_from: list[str] | None = None,
) -> dt.datetime | float | None:
"""
Returns the first valid delay timestamp that matches
:param epoch: Returns the timestamp as epoch
:param convert: Converts the timestamp to either utc or local
:param from_: Matches only delays that have the according
from attr set
:param not_from: Matches only delays that have the according
from attr not set
"""
delays = stanza.getTags("delay", namespace=Namespace.DELAY2)
for delay in delays:
stamp = delay.getAttr("stamp")
if stamp is None:
log.warning("Invalid timestamp received: %s", stamp)
log.warning(stanza)
continue
delay_from = delay.getAttr("from")
if from_ is not None:
if delay_from not in from_:
continue
if not_from is not None:
if delay_from in not_from:
continue
timestamp = parse_datetime(stamp, check_utc=True, epoch=epoch, convert=convert)
if timestamp is None:
log.warning("Invalid timestamp received: %s", stamp)
log.warning(stanza)
continue
return timestamp
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