File: util.py

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# Copyright (C) 2020 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 Literal

from dataclasses import dataclass

from nbxmpp.const import Affiliation
from nbxmpp.const import Role
from nbxmpp.modules.vcard_temp import VCard
from nbxmpp.namespaces import Namespace
from nbxmpp.protocol import InvalidJid
from nbxmpp.protocol import Iq
from nbxmpp.protocol import JID
from nbxmpp.protocol import Message
from nbxmpp.protocol import StanzaMalformed
from nbxmpp.simplexml import Node
from nbxmpp.structs import DiscoInfo
from nbxmpp.structs import MucUserData

AffiliationT = Literal["owner", "admin", "member", "outcast", "none"]
RoleT = Literal["moderator", "participant", "visitor", "none"]


@dataclass
class MucInfoResult:
    info: DiscoInfo
    vcard: VCard | None = None
    redirected: bool = False


def make_affiliation_request(jid: JID | str, affiliation: AffiliationT) -> Iq:
    iq = Iq(typ="get", to=jid, queryNS=Namespace.MUC_ADMIN)
    item = iq.setQuery().setTag("item")
    item.setAttr("affiliation", affiliation)
    return iq


def make_set_affiliation_request(
    room_jid: JID, users_dict: dict[JID, dict[str, str | None]]
) -> Iq:
    iq = Iq(typ="set", to=room_jid, queryNS=Namespace.MUC_ADMIN)
    item = iq.setQuery()
    for jid, data in users_dict.items():
        affiliation = data.get("affiliation")
        reason = data.get("reason")
        nick = data.get("nick")
        item_tag = item.addChild("item", {"jid": jid, "affiliation": affiliation})
        if reason is not None:
            item_tag.setTagData("reason", reason)

        if nick is not None:
            item_tag.setAttr("nick", nick)

    return iq


def make_destroy_request(room_jid: JID, reason: str | None, jid: str | None) -> Iq:
    iq = Iq(typ="set", queryNS=Namespace.MUC_OWNER, to=room_jid)
    destroy = iq.setQuery().setTag("destroy")

    if reason:
        destroy.setTagData("reason", reason)

    if jid:
        destroy.setAttr("jid", jid)

    return iq


def make_set_config_request(room_jid: JID, form) -> Iq:
    iq = Iq(typ="set", to=room_jid, queryNS=Namespace.MUC_OWNER)
    query = iq.setQuery()
    form.setAttr("type", "submit")
    query.addChild(node=form)
    return iq


def make_config_request(room_jid: JID) -> Iq:
    iq = Iq(typ="get", queryNS=Namespace.MUC_OWNER, to=room_jid)
    return iq


def make_cancel_config_request(room_jid: JID) -> Iq:
    cancel = Node(tag="x", attrs={"xmlns": Namespace.DATA, "type": "cancel"})
    iq = Iq(typ="set", queryNS=Namespace.MUC_OWNER, payload=cancel, to=room_jid)
    return iq


def make_set_role_request(
    room_jid: JID, nick: str, role: RoleT, reason: str | None
) -> Iq:
    iq = Iq(typ="set", to=room_jid, queryNS=Namespace.MUC_ADMIN)
    item = iq.setQuery().setTag("item")
    item.setAttr("nick", nick)
    item.setAttr("role", role)
    if reason:
        item.addChild(name="reason", payload=reason)

    return iq


def make_captcha_request(room_jid: JID, form_node) -> Iq:
    iq = Iq(typ="set", to=room_jid)
    captcha = iq.addChild(name="captcha", namespace=Namespace.CAPTCHA)
    captcha.addChild(node=form_node)
    return iq


def build_direct_invite(
    room: JID, to: JID, reason: str | None, password: str | None, continue_: bool | None
) -> Message:
    message = Message(to=to)
    attrs = {"jid": room}
    if reason:
        attrs["reason"] = reason
    if continue_:
        attrs["continue"] = "true"
    if password:
        attrs["password"] = password
    message.addChild(name="x", attrs=attrs, namespace=Namespace.CONFERENCE)
    return message


def build_mediated_invite(
    room: JID, to: JID, reason: str | None, password: str | None, continue_: bool | None
) -> Message:
    message = Message(to=room)
    muc_user = message.addChild("x", namespace=Namespace.MUC_USER)
    invite = muc_user.addChild("invite", attrs={"to": to})
    if continue_:
        invite.addChild(name="continue")
    if reason:
        invite.setTagData("reason", reason)
    if password:
        muc_user.setTagData("password", password)
    return message


def parse_muc_user(muc_user: Node, is_presence: bool = True) -> MucUserData | None:
    item = muc_user.getTag("item")
    if item is None:
        return None

    item_dict = item.getAttrs()

    role = item_dict.get("role")
    if role is not None:
        try:
            role = Role(role)
        except ValueError:
            raise StanzaMalformed("invalid role %s" % role)

    elif is_presence:
        # role attr MUST be included in all presence broadcasts
        raise StanzaMalformed("role attr missing")

    affiliation = item_dict.get("affiliation")
    if affiliation is not None:
        try:
            affiliation = Affiliation(affiliation)
        except ValueError:
            raise StanzaMalformed("invalid affiliation %s" % affiliation)

    elif is_presence:
        # affiliation attr MUST be included in all presence broadcasts
        raise StanzaMalformed("affiliation attr missing")

    jid = item_dict.get("jid")
    if jid is not None:
        try:
            jid = JID.from_string(jid, force_bare=True)
        except InvalidJid as error:
            raise StanzaMalformed("invalid jid %s, %s" % (jid, error))

    return MucUserData(
        affiliation=affiliation,
        jid=jid,
        nick=item.getAttr("nick"),
        role=role,
        actor=item.getTagAttr("actor", "nick"),
        reason=item.getTagData("reason"),
    )