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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 collections.abc import Generator
from nbxmpp.errors import MalformedStanzaError
from nbxmpp.errors import StanzaError
from nbxmpp.modules.base import BaseModule
from nbxmpp.modules.util import process_response
from nbxmpp.namespaces import Namespace
from nbxmpp.protocol import Iq
from nbxmpp.protocol import JID
from nbxmpp.simplexml import Node
from nbxmpp.structs import BlockingProperties
from nbxmpp.structs import BlockingPush
from nbxmpp.structs import StanzaHandler
from nbxmpp.task import iq_request_task
from nbxmpp.types import BlockingReportValues
if TYPE_CHECKING:
from nbxmpp.client import Client
class Blocking(BaseModule):
def __init__(self, client: Client):
BaseModule.__init__(self, client)
self._client = client
self.handlers = [
StanzaHandler(
name="iq",
priority=15,
callback=self._process_blocking_push,
typ="set",
ns=Namespace.BLOCKING,
),
]
@iq_request_task
def request_blocking_list(self) -> Generator[set[JID] | Iq | None, Iq]:
_task = yield
result = yield _make_blocking_list_request()
if result.isError():
raise StanzaError(result)
blocklist = result.getTag("blocklist", namespace=Namespace.BLOCKING)
if blocklist is None:
raise MalformedStanzaError("blocklist node missing", result)
blocked: set[JID] = set()
for item in blocklist.getTags("item"):
try:
jid = JID.from_string(item.getAttr("jid"))
except Exception:
self._log.info("Invalid JID: %s", item.getAttr("jid"))
continue
blocked.add(jid)
self._log.info("Received blocking list: %s", blocked)
yield blocked
@iq_request_task
def block(self, jids: list[JID], report: BlockingReportValues | None = None):
_task = yield
response = yield _make_block_request(jids, report)
yield process_response(response)
@iq_request_task
def unblock(self, jids: list[JID]):
_task = yield
response = yield _make_unblock_request(jids)
yield process_response(response)
@staticmethod
def _process_blocking_push(
client: Client, stanza: Iq, properties: BlockingProperties
) -> None:
unblock = stanza.getTag("unblock", namespace=Namespace.BLOCKING)
if unblock is not None:
properties.blocking = _parse_push(unblock)
block = stanza.getTag("block", namespace=Namespace.BLOCKING)
if block is not None:
properties.blocking = _parse_push(block)
reply = stanza.buildSimpleReply("result")
client.send_stanza(reply)
def _make_blocking_list_request() -> Iq:
iq = Iq("get", Namespace.BLOCKING)
iq.setQuery("blocklist")
return iq
def _make_block_request(jids: list[JID], report: BlockingReportValues | None) -> Iq:
iq = Iq("set", Namespace.BLOCKING)
query = iq.setQuery(name="block")
for jid in jids:
item = query.addChild(name="item", attrs={"jid": str(jid)})
if report in ("spam", "abuse"):
action = item.addChild(name="report", namespace=Namespace.REPORTING)
action.setTag(report)
return iq
def _make_unblock_request(jids: list[JID]) -> Iq:
iq = Iq("set", Namespace.BLOCKING)
query = iq.setQuery(name="unblock")
for jid in jids:
query.addChild(name="item", attrs={"jid": str(jid)})
return iq
def _parse_push(node: Node) -> BlockingPush:
items = node.getTags("item")
if not items:
return BlockingPush(block=set(), unblock=set(), unblock_all=True)
jids: set[JID] = set()
for item in items:
jid = item.getAttr("jid")
if not jid:
continue
try:
jid = JID.from_string(jid)
except Exception:
continue
jids.add(jid)
block: set[JID] = set()
unblock: set[JID] = set()
if node.getName() == "block":
block = jids
else:
unblock = jids
return BlockingPush(block=block, unblock=unblock, unblock_all=False)
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