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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
from nbxmpp.const import MessageType
from nbxmpp.modules.base import BaseModule
from nbxmpp.modules.fallback import parse_fallback_indication
from nbxmpp.namespaces import Namespace
from nbxmpp.protocol import JID
from nbxmpp.protocol import Message
from nbxmpp.protocol import NodeProcessed
from nbxmpp.structs import BodyData
from nbxmpp.structs import MessageProperties
from nbxmpp.structs import StanzaHandler
from nbxmpp.structs import StanzaIDData
from nbxmpp.structs import XHTMLData
from nbxmpp.util import error_factory
if TYPE_CHECKING:
from nbxmpp.client import Client
class BaseMessage(BaseModule):
def __init__(self, client: Client) -> None:
BaseModule.__init__(self, client)
self._client = client
self.handlers = [
StanzaHandler(
name="message", callback=self._process_message_base, priority=5
),
StanzaHandler(
name="message", callback=self._process_message_after_base, priority=10
),
]
def _process_message_base(
self, _client: Client, stanza: Message, properties: MessageProperties
) -> None:
properties.type = self._parse_type(stanza)
if properties.is_carbon_message and properties.carbon.is_sent:
properties.jid = stanza.getTo()
elif properties.is_mam_message and not properties.type.is_groupchat:
own_jid = self._client.get_bound_jid()
if own_jid.bare_match(stanza.getFrom()):
properties.jid = stanza.getTo()
else:
properties.jid = stanza.getFrom()
else:
properties.jid = stanza.getFrom()
self._parse_if_private_message(stanza, properties)
properties.remote_jid = self._determine_remote_jid(properties)
properties.from_ = stanza.getFrom()
properties.to = stanza.getTo()
properties.id = stanza.getID()
properties.self_message = self._parse_self_message(stanza, properties)
properties.origin_id = stanza.getOriginID()
properties.stanza_ids = self._parse_stanza_ids(stanza)
if properties.type.is_error:
properties.error = error_factory(stanza)
def _determine_remote_jid(self, properties: MessageProperties) -> JID | None:
if properties.is_muc_pm:
return properties.jid
return properties.jid.new_as_bare()
def _parse_if_private_message(
self, stanza: Message, properties: MessageProperties
) -> None:
muc_user = stanza.getTag("x", namespace=Namespace.MUC_USER)
if muc_user is None:
return
if not properties.jid.is_full:
return
if properties.type.is_chat or (
properties.type.is_error and not muc_user.getChildren()
):
properties.muc_private_message = True
def _process_message_after_base(
self, _client: Client, stanza: Message, properties: MessageProperties
) -> None:
# This handler runs after decryption handlers had the chance
# to decrypt the body
fallbacks_for = parse_fallback_indication(self._log, stanza)
properties.body = stanza.getBody()
properties.bodies = BodyData(
stanza, fallbacks_for, self._client.get_supported_fallback_ns()
)
properties.thread = stanza.getThread()
properties.subject = stanza.getSubject()
forms = stanza.getTags("x", namespace=Namespace.DATA)
if forms:
properties.forms = forms
xhtml = stanza.getXHTML()
if xhtml is None:
return
if xhtml.getTag("body", namespace=Namespace.XHTML) is None:
self._log.warning("xhtml without body found")
self._log.warning(stanza)
return
properties.xhtml = XHTMLData(xhtml)
def _parse_type(self, stanza: Message) -> MessageType:
type_ = stanza.getType()
if type_ is None:
return MessageType.NORMAL
try:
return MessageType(type_)
except ValueError:
self._log.warning("Message with invalid type: %s", type_)
self._log.warning(stanza)
raise NodeProcessed
@staticmethod
def _parse_self_message(stanza: Message, properties: MessageProperties) -> bool:
if properties.type.is_groupchat:
return False
return stanza.getFrom().bare_match(stanza.getTo())
def _parse_stanza_ids(self, stanza: Message) -> list[StanzaIDData]:
stanza_ids: list[StanzaIDData] = []
for stanza_id in stanza.getTags("stanza-id", namespace=Namespace.SID):
id_ = stanza_id.getAttr("id")
by = stanza_id.getAttr("by")
if not id_ or not by:
self._log.warning("Missing attributes on stanza-id")
self._log.warning(stanza)
continue
stanza_ids.append(StanzaIDData(id=id_, by=by))
return stanza_ids
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