405 lines
14 KiB
Python
405 lines
14 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2017 New Vector Ltd
|
|
# Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
import logging
|
|
from typing import TYPE_CHECKING, Iterable, Optional, Tuple
|
|
|
|
from twisted.internet import defer
|
|
|
|
from synapse.events import EventBase
|
|
from synapse.http.client import SimpleHttpClient
|
|
from synapse.http.site import SynapseRequest
|
|
from synapse.logging.context import make_deferred_yieldable, run_in_background
|
|
from synapse.storage.state import StateFilter
|
|
from synapse.types import JsonDict, UserID, create_requester
|
|
|
|
if TYPE_CHECKING:
|
|
from synapse.server import HomeServer
|
|
|
|
"""
|
|
This package defines the 'stable' API which can be used by extension modules which
|
|
are loaded into Synapse.
|
|
"""
|
|
|
|
__all__ = ["errors", "make_deferred_yieldable", "run_in_background", "ModuleApi"]
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ModuleApi:
|
|
"""A proxy object that gets passed to various plugin modules so they
|
|
can register new users etc if necessary.
|
|
"""
|
|
|
|
def __init__(self, hs, auth_handler):
|
|
self._hs = hs
|
|
|
|
self._store = hs.get_datastore()
|
|
self._auth = hs.get_auth()
|
|
self._auth_handler = auth_handler
|
|
self._server_name = hs.hostname
|
|
|
|
# We expose these as properties below in order to attach a helpful docstring.
|
|
self._http_client = hs.get_simple_http_client() # type: SimpleHttpClient
|
|
self._public_room_list_manager = PublicRoomListManager(hs)
|
|
|
|
@property
|
|
def http_client(self):
|
|
"""Allows making outbound HTTP requests to remote resources.
|
|
|
|
An instance of synapse.http.client.SimpleHttpClient
|
|
"""
|
|
return self._http_client
|
|
|
|
@property
|
|
def public_room_list_manager(self):
|
|
"""Allows adding to, removing from and checking the status of rooms in the
|
|
public room list.
|
|
|
|
An instance of synapse.module_api.PublicRoomListManager
|
|
"""
|
|
return self._public_room_list_manager
|
|
|
|
def get_user_by_req(self, req, allow_guest=False):
|
|
"""Check the access_token provided for a request
|
|
|
|
Args:
|
|
req (twisted.web.server.Request): Incoming HTTP request
|
|
allow_guest (bool): True if guest users should be allowed. If this
|
|
is False, and the access token is for a guest user, an
|
|
AuthError will be thrown
|
|
Returns:
|
|
twisted.internet.defer.Deferred[synapse.types.Requester]:
|
|
the requester for this request
|
|
Raises:
|
|
synapse.api.errors.AuthError: if no user by that token exists,
|
|
or the token is invalid.
|
|
"""
|
|
return self._auth.get_user_by_req(req, allow_guest)
|
|
|
|
def get_qualified_user_id(self, username):
|
|
"""Qualify a user id, if necessary
|
|
|
|
Takes a user id provided by the user and adds the @ and :domain to
|
|
qualify it, if necessary
|
|
|
|
Args:
|
|
username (str): provided user id
|
|
|
|
Returns:
|
|
str: qualified @user:id
|
|
"""
|
|
if username.startswith("@"):
|
|
return username
|
|
return UserID(username, self._hs.hostname).to_string()
|
|
|
|
def check_user_exists(self, user_id):
|
|
"""Check if user exists.
|
|
|
|
Args:
|
|
user_id (str): Complete @user:id
|
|
|
|
Returns:
|
|
Deferred[str|None]: Canonical (case-corrected) user_id, or None
|
|
if the user is not registered.
|
|
"""
|
|
return defer.ensureDeferred(self._auth_handler.check_user_exists(user_id))
|
|
|
|
@defer.inlineCallbacks
|
|
def register(self, localpart, displayname=None, emails=[]):
|
|
"""Registers a new user with given localpart and optional displayname, emails.
|
|
|
|
Also returns an access token for the new user.
|
|
|
|
Deprecated: avoid this, as it generates a new device with no way to
|
|
return that device to the user. Prefer separate calls to register_user and
|
|
register_device.
|
|
|
|
Args:
|
|
localpart (str): The localpart of the new user.
|
|
displayname (str|None): The displayname of the new user.
|
|
emails (List[str]): Emails to bind to the new user.
|
|
|
|
Returns:
|
|
Deferred[tuple[str, str]]: a 2-tuple of (user_id, access_token)
|
|
"""
|
|
logger.warning(
|
|
"Using deprecated ModuleApi.register which creates a dummy user device."
|
|
)
|
|
user_id = yield self.register_user(localpart, displayname, emails)
|
|
_, access_token = yield self.register_device(user_id)
|
|
return user_id, access_token
|
|
|
|
def register_user(self, localpart, displayname=None, emails=[]):
|
|
"""Registers a new user with given localpart and optional displayname, emails.
|
|
|
|
Args:
|
|
localpart (str): The localpart of the new user.
|
|
displayname (str|None): The displayname of the new user.
|
|
emails (List[str]): Emails to bind to the new user.
|
|
|
|
Raises:
|
|
SynapseError if there is an error performing the registration. Check the
|
|
'errcode' property for more information on the reason for failure
|
|
|
|
Returns:
|
|
defer.Deferred[str]: user_id
|
|
"""
|
|
return defer.ensureDeferred(
|
|
self._hs.get_registration_handler().register_user(
|
|
localpart=localpart,
|
|
default_display_name=displayname,
|
|
bind_emails=emails,
|
|
)
|
|
)
|
|
|
|
def register_device(self, user_id, device_id=None, initial_display_name=None):
|
|
"""Register a device for a user and generate an access token.
|
|
|
|
Args:
|
|
user_id (str): full canonical @user:id
|
|
device_id (str|None): The device ID to check, or None to generate
|
|
a new one.
|
|
initial_display_name (str|None): An optional display name for the
|
|
device.
|
|
|
|
Returns:
|
|
defer.Deferred[tuple[str, str]]: Tuple of device ID and access token
|
|
"""
|
|
return defer.ensureDeferred(
|
|
self._hs.get_registration_handler().register_device(
|
|
user_id=user_id,
|
|
device_id=device_id,
|
|
initial_display_name=initial_display_name,
|
|
)
|
|
)
|
|
|
|
def record_user_external_id(
|
|
self, auth_provider_id: str, remote_user_id: str, registered_user_id: str
|
|
) -> defer.Deferred:
|
|
"""Record a mapping from an external user id to a mxid
|
|
|
|
Args:
|
|
auth_provider: identifier for the remote auth provider
|
|
external_id: id on that system
|
|
user_id: complete mxid that it is mapped to
|
|
"""
|
|
return defer.ensureDeferred(
|
|
self._store.record_user_external_id(
|
|
auth_provider_id, remote_user_id, registered_user_id
|
|
)
|
|
)
|
|
|
|
def generate_short_term_login_token(
|
|
self, user_id: str, duration_in_ms: int = (2 * 60 * 1000)
|
|
) -> str:
|
|
"""Generate a login token suitable for m.login.token authentication"""
|
|
return self._hs.get_macaroon_generator().generate_short_term_login_token(
|
|
user_id, duration_in_ms
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def invalidate_access_token(self, access_token):
|
|
"""Invalidate an access token for a user
|
|
|
|
Args:
|
|
access_token(str): access token
|
|
|
|
Returns:
|
|
twisted.internet.defer.Deferred - resolves once the access token
|
|
has been removed.
|
|
|
|
Raises:
|
|
synapse.api.errors.AuthError: the access token is invalid
|
|
"""
|
|
# see if the access token corresponds to a device
|
|
user_info = yield defer.ensureDeferred(
|
|
self._auth.get_user_by_access_token(access_token)
|
|
)
|
|
device_id = user_info.get("device_id")
|
|
user_id = user_info["user"].to_string()
|
|
if device_id:
|
|
# delete the device, which will also delete its access tokens
|
|
yield defer.ensureDeferred(
|
|
self._hs.get_device_handler().delete_device(user_id, device_id)
|
|
)
|
|
else:
|
|
# no associated device. Just delete the access token.
|
|
yield defer.ensureDeferred(
|
|
self._auth_handler.delete_access_token(access_token)
|
|
)
|
|
|
|
def run_db_interaction(self, desc, func, *args, **kwargs):
|
|
"""Run a function with a database connection
|
|
|
|
Args:
|
|
desc (str): description for the transaction, for metrics etc
|
|
func (func): function to be run. Passed a database cursor object
|
|
as well as *args and **kwargs
|
|
*args: positional args to be passed to func
|
|
**kwargs: named args to be passed to func
|
|
|
|
Returns:
|
|
Deferred[object]: result of func
|
|
"""
|
|
return defer.ensureDeferred(
|
|
self._store.db_pool.runInteraction(desc, func, *args, **kwargs)
|
|
)
|
|
|
|
def complete_sso_login(
|
|
self, registered_user_id: str, request: SynapseRequest, client_redirect_url: str
|
|
):
|
|
"""Complete a SSO login by redirecting the user to a page to confirm whether they
|
|
want their access token sent to `client_redirect_url`, or redirect them to that
|
|
URL with a token directly if the URL matches with one of the whitelisted clients.
|
|
|
|
This is deprecated in favor of complete_sso_login_async.
|
|
|
|
Args:
|
|
registered_user_id: The MXID that has been registered as a previous step of
|
|
of this SSO login.
|
|
request: The request to respond to.
|
|
client_redirect_url: The URL to which to offer to redirect the user (or to
|
|
redirect them directly if whitelisted).
|
|
"""
|
|
self._auth_handler._complete_sso_login(
|
|
registered_user_id,
|
|
request,
|
|
client_redirect_url,
|
|
)
|
|
|
|
async def complete_sso_login_async(
|
|
self,
|
|
registered_user_id: str,
|
|
request: SynapseRequest,
|
|
client_redirect_url: str,
|
|
new_user: bool = False,
|
|
):
|
|
"""Complete a SSO login by redirecting the user to a page to confirm whether they
|
|
want their access token sent to `client_redirect_url`, or redirect them to that
|
|
URL with a token directly if the URL matches with one of the whitelisted clients.
|
|
|
|
Args:
|
|
registered_user_id: The MXID that has been registered as a previous step of
|
|
of this SSO login.
|
|
request: The request to respond to.
|
|
client_redirect_url: The URL to which to offer to redirect the user (or to
|
|
redirect them directly if whitelisted).
|
|
new_user: set to true to use wording for the consent appropriate to a user
|
|
who has just registered.
|
|
"""
|
|
await self._auth_handler.complete_sso_login(
|
|
registered_user_id, request, client_redirect_url, new_user=new_user
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_state_events_in_room(
|
|
self, room_id: str, types: Iterable[Tuple[str, Optional[str]]]
|
|
) -> defer.Deferred:
|
|
"""Gets current state events for the given room.
|
|
|
|
(This is exposed for compatibility with the old SpamCheckerApi. We should
|
|
probably deprecate it and replace it with an async method in a subclass.)
|
|
|
|
Args:
|
|
room_id: The room ID to get state events in.
|
|
types: The event type and state key (using None
|
|
to represent 'any') of the room state to acquire.
|
|
|
|
Returns:
|
|
twisted.internet.defer.Deferred[list(synapse.events.FrozenEvent)]:
|
|
The filtered state events in the room.
|
|
"""
|
|
state_ids = yield defer.ensureDeferred(
|
|
self._store.get_filtered_current_state_ids(
|
|
room_id=room_id, state_filter=StateFilter.from_types(types)
|
|
)
|
|
)
|
|
state = yield defer.ensureDeferred(self._store.get_events(state_ids.values()))
|
|
return state.values()
|
|
|
|
async def create_and_send_event_into_room(self, event_dict: JsonDict) -> EventBase:
|
|
"""Create and send an event into a room. Membership events are currently not supported.
|
|
|
|
Args:
|
|
event_dict: A dictionary representing the event to send.
|
|
Required keys are `type`, `room_id`, `sender` and `content`.
|
|
|
|
Returns:
|
|
The event that was sent. If state event deduplication happened, then
|
|
the previous, duplicate event instead.
|
|
|
|
Raises:
|
|
SynapseError if the event was not allowed.
|
|
"""
|
|
# Create a requester object
|
|
requester = create_requester(
|
|
event_dict["sender"], authenticated_entity=self._server_name
|
|
)
|
|
|
|
# Create and send the event
|
|
(
|
|
event,
|
|
_,
|
|
) = await self._hs.get_event_creation_handler().create_and_send_nonmember_event(
|
|
requester,
|
|
event_dict,
|
|
ratelimit=False,
|
|
ignore_shadow_ban=True,
|
|
)
|
|
|
|
return event
|
|
|
|
|
|
class PublicRoomListManager:
|
|
"""Contains methods for adding to, removing from and querying whether a room
|
|
is in the public room list.
|
|
"""
|
|
|
|
def __init__(self, hs: "HomeServer"):
|
|
self._store = hs.get_datastore()
|
|
|
|
async def room_is_in_public_room_list(self, room_id: str) -> bool:
|
|
"""Checks whether a room is in the public room list.
|
|
|
|
Args:
|
|
room_id: The ID of the room.
|
|
|
|
Returns:
|
|
Whether the room is in the public room list. Returns False if the room does
|
|
not exist.
|
|
"""
|
|
room = await self._store.get_room(room_id)
|
|
if not room:
|
|
return False
|
|
|
|
return room.get("is_public", False)
|
|
|
|
async def add_room_to_public_room_list(self, room_id: str) -> None:
|
|
"""Publishes a room to the public room list.
|
|
|
|
Args:
|
|
room_id: The ID of the room.
|
|
"""
|
|
await self._store.set_room_is_public(room_id, True)
|
|
|
|
async def remove_room_from_public_room_list(self, room_id: str) -> None:
|
|
"""Removes a room from the public room list.
|
|
|
|
Args:
|
|
room_id: The ID of the room.
|
|
"""
|
|
await self._store.set_room_is_public(room_id, False)
|