forked-synapse/synapse/rest/client/account.py
Patrick Cloke cc865fffc0
Convert user_get_threepids response to attrs. (#16468)
This improves type annotations by not having a dictionary of Any values.
2023-10-11 20:08:11 -04:00

919 lines
35 KiB
Python

# Copyright 2015, 2016 OpenMarket Ltd
# Copyright 2017 Vector Creations Ltd
# Copyright 2018 New Vector Ltd
#
# 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
import random
from typing import TYPE_CHECKING, List, Optional, Tuple
from urllib.parse import urlparse
from synapse._pydantic_compat import HAS_PYDANTIC_V2
if TYPE_CHECKING or HAS_PYDANTIC_V2:
from pydantic.v1 import StrictBool, StrictStr, constr
else:
from pydantic import StrictBool, StrictStr, constr
import attr
from typing_extensions import Literal
from twisted.web.server import Request
from synapse.api.constants import LoginType
from synapse.api.errors import (
Codes,
InteractiveAuthIncompleteError,
NotFoundError,
SynapseError,
ThreepidValidationError,
)
from synapse.handlers.ui_auth import UIAuthSessionDataConstants
from synapse.http.server import HttpServer, finish_request, respond_with_html
from synapse.http.servlet import (
RestServlet,
assert_params_in_dict,
parse_and_validate_json_object_from_request,
parse_json_object_from_request,
parse_string,
)
from synapse.http.site import SynapseRequest
from synapse.metrics import threepid_send_requests
from synapse.push.mailer import Mailer
from synapse.rest.client.models import (
AuthenticationData,
ClientSecretStr,
EmailRequestTokenBody,
MsisdnRequestTokenBody,
)
from synapse.rest.models import RequestBodyModel
from synapse.types import JsonDict
from synapse.util.msisdn import phone_number_to_msisdn
from synapse.util.stringutils import assert_valid_client_secret, random_string
from synapse.util.threepids import check_3pid_allowed, validate_email
from ._base import client_patterns, interactive_auth_handler
if TYPE_CHECKING:
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
class EmailPasswordRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/password/email/requestToken$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.datastore = hs.get_datastores().main
self.config = hs.config
self.identity_handler = hs.get_identity_handler()
if self.config.email.can_verify_email:
self.mailer = Mailer(
hs=self.hs,
app_name=self.config.email.email_app_name,
template_html=self.config.email.email_password_reset_template_html,
template_text=self.config.email.email_password_reset_template_text,
)
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
if not self.config.email.can_verify_email:
logger.warning(
"User password resets have been disabled due to lack of email config"
)
raise SynapseError(
400, "Email-based password resets have been disabled on this server"
)
body = parse_and_validate_json_object_from_request(
request, EmailRequestTokenBody
)
if body.next_link:
# Raise if the provided next_link value isn't valid
assert_valid_next_link(self.hs, body.next_link)
await self.identity_handler.ratelimit_request_token_requests(
request, "email", body.email
)
# The email will be sent to the stored address.
# This avoids a potential account hijack by requesting a password reset to
# an email address which is controlled by the attacker but which, after
# canonicalisation, matches the one in our database.
existing_user_id = await self.hs.get_datastores().main.get_user_id_by_threepid(
"email", body.email
)
if existing_user_id is None:
if self.config.server.request_token_inhibit_3pid_errors:
# Make the client think the operation succeeded. See the rationale in the
# comments for request_token_inhibit_3pid_errors.
# Also wait for some random amount of time between 100ms and 1s to make it
# look like we did something.
await self.hs.get_clock().sleep(random.randint(1, 10) / 10)
return 200, {"sid": random_string(16)}
raise SynapseError(400, "Email not found", Codes.THREEPID_NOT_FOUND)
# Send password reset emails from Synapse
sid = await self.identity_handler.send_threepid_validation(
body.email,
body.client_secret,
body.send_attempt,
self.mailer.send_password_reset_mail,
body.next_link,
)
threepid_send_requests.labels(type="email", reason="password_reset").observe(
body.send_attempt
)
# Wrap the session id in a JSON object
return 200, {"sid": sid}
class PasswordRestServlet(RestServlet):
PATTERNS = client_patterns("/account/password$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
self.datastore = self.hs.get_datastores().main
self.password_policy_handler = hs.get_password_policy_handler()
self._set_password_handler = hs.get_set_password_handler()
class PostBody(RequestBodyModel):
auth: Optional[AuthenticationData] = None
logout_devices: StrictBool = True
if TYPE_CHECKING:
# workaround for https://github.com/samuelcolvin/pydantic/issues/156
new_password: Optional[StrictStr] = None
else:
new_password: Optional[constr(max_length=512, strict=True)] = None
@interactive_auth_handler
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
body = parse_and_validate_json_object_from_request(request, self.PostBody)
# we do basic sanity checks here because the auth layer will store these
# in sessions. Pull out the new password provided to us.
new_password = body.new_password
if new_password is not None:
self.password_policy_handler.validate_password(new_password)
# there are two possibilities here. Either the user does not have an
# access token, and needs to do a password reset; or they have one and
# need to validate their identity.
#
# In the first case, we offer a couple of means of identifying
# themselves (email and msisdn, though it's unclear if msisdn actually
# works).
#
# In the second case, we require a password to confirm their identity.
try:
requester = None
if self.auth.has_access_token(request):
requester = await self.auth.get_user_by_req(request)
params, session_id = await self.auth_handler.validate_user_via_ui_auth(
requester,
request,
body.dict(exclude_unset=True, exclude={"new_password"}),
"modify your account password",
)
user_id = requester.user.to_string()
else:
result, params, session_id = await self.auth_handler.check_ui_auth(
[[LoginType.EMAIL_IDENTITY]],
request,
body.dict(exclude_unset=True, exclude={"new_password"}),
"modify your account password",
)
if LoginType.EMAIL_IDENTITY in result:
threepid = result[LoginType.EMAIL_IDENTITY]
if "medium" not in threepid or "address" not in threepid:
raise SynapseError(500, "Malformed threepid")
if threepid["medium"] == "email":
# For emails, canonicalise the address.
# We store all email addresses canonicalised in the DB.
# (See add_threepid in synapse/handlers/auth.py)
try:
threepid["address"] = validate_email(threepid["address"])
except ValueError as e:
raise SynapseError(400, str(e))
# if using email, we must know about the email they're authing with!
threepid_user_id = await self.datastore.get_user_id_by_threepid(
threepid["medium"], threepid["address"]
)
if not threepid_user_id:
raise SynapseError(
404, "Email address not found", Codes.NOT_FOUND
)
user_id = threepid_user_id
else:
logger.error("Auth succeeded but no known type! %r", result.keys())
raise SynapseError(500, "", Codes.UNKNOWN)
except InteractiveAuthIncompleteError as e:
# The user needs to provide more steps to complete auth, but
# they're not required to provide the password again.
#
# If a password is available now, hash the provided password and
# store it for later. We only do this if we don't already have the
# password hash stored, to avoid repeatedly hashing the password.
if not new_password:
raise
existing_session_password_hash = await self.auth_handler.get_session_data(
e.session_id, UIAuthSessionDataConstants.PASSWORD_HASH, None
)
if existing_session_password_hash:
raise
new_password_hash = await self.auth_handler.hash(new_password)
await self.auth_handler.set_session_data(
e.session_id,
UIAuthSessionDataConstants.PASSWORD_HASH,
new_password_hash,
)
raise
# If we have a password in this request, prefer it. Otherwise, use the
# password hash from an earlier request.
if new_password:
password_hash: Optional[str] = await self.auth_handler.hash(new_password)
elif session_id is not None:
password_hash = existing_session_password_hash
else:
# UI validation was skipped, but the request did not include a new
# password.
password_hash = None
if not password_hash:
raise SynapseError(400, "Missing params: password", Codes.MISSING_PARAM)
logout_devices = params.get("logout_devices", True)
await self._set_password_handler.set_password(
user_id, password_hash, logout_devices, requester
)
return 200, {}
class DeactivateAccountRestServlet(RestServlet):
PATTERNS = client_patterns("/account/deactivate$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
self._deactivate_account_handler = hs.get_deactivate_account_handler()
class PostBody(RequestBodyModel):
auth: Optional[AuthenticationData] = None
id_server: Optional[StrictStr] = None
# Not specced, see https://github.com/matrix-org/matrix-spec/issues/297
erase: StrictBool = False
@interactive_auth_handler
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
body = parse_and_validate_json_object_from_request(request, self.PostBody)
requester = await self.auth.get_user_by_req(request)
# allow ASes to deactivate their own users
if requester.app_service:
await self._deactivate_account_handler.deactivate_account(
requester.user.to_string(), body.erase, requester
)
return 200, {}
await self.auth_handler.validate_user_via_ui_auth(
requester,
request,
body.dict(exclude_unset=True),
"deactivate your account",
)
result = await self._deactivate_account_handler.deactivate_account(
requester.user.to_string(), body.erase, requester, id_server=body.id_server
)
if result:
id_server_unbind_result = "success"
else:
id_server_unbind_result = "no-support"
return 200, {"id_server_unbind_result": id_server_unbind_result}
class EmailThreepidRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/email/requestToken$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.config = hs.config
self.identity_handler = hs.get_identity_handler()
self.store = self.hs.get_datastores().main
if self.config.email.can_verify_email:
self.mailer = Mailer(
hs=self.hs,
app_name=self.config.email.email_app_name,
template_html=self.config.email.email_add_threepid_template_html,
template_text=self.config.email.email_add_threepid_template_text,
)
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
if not self.hs.config.registration.enable_3pid_changes:
raise SynapseError(
400, "3PID changes are disabled on this server", Codes.FORBIDDEN
)
if not self.config.email.can_verify_email:
logger.warning(
"Adding emails have been disabled due to lack of an email config"
)
raise SynapseError(
400,
"Adding an email to your account is disabled on this server",
)
body = parse_and_validate_json_object_from_request(
request, EmailRequestTokenBody
)
if not await check_3pid_allowed(self.hs, "email", body.email):
raise SynapseError(
403,
"Your email domain is not authorized on this server",
Codes.THREEPID_DENIED,
)
await self.identity_handler.ratelimit_request_token_requests(
request, "email", body.email
)
if body.next_link:
# Raise if the provided next_link value isn't valid
assert_valid_next_link(self.hs, body.next_link)
existing_user_id = await self.store.get_user_id_by_threepid("email", body.email)
if existing_user_id is not None:
if self.config.server.request_token_inhibit_3pid_errors:
# Make the client think the operation succeeded. See the rationale in the
# comments for request_token_inhibit_3pid_errors.
# Also wait for some random amount of time between 100ms and 1s to make it
# look like we did something.
await self.hs.get_clock().sleep(random.randint(1, 10) / 10)
return 200, {"sid": random_string(16)}
raise SynapseError(400, "Email is already in use", Codes.THREEPID_IN_USE)
# Send threepid validation emails from Synapse
sid = await self.identity_handler.send_threepid_validation(
body.email,
body.client_secret,
body.send_attempt,
self.mailer.send_add_threepid_mail,
body.next_link,
)
threepid_send_requests.labels(type="email", reason="add_threepid").observe(
body.send_attempt
)
# Wrap the session id in a JSON object
return 200, {"sid": sid}
class MsisdnThreepidRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/msisdn/requestToken$")
def __init__(self, hs: "HomeServer"):
self.hs = hs
super().__init__()
self.store = self.hs.get_datastores().main
self.identity_handler = hs.get_identity_handler()
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
body = parse_and_validate_json_object_from_request(
request, MsisdnRequestTokenBody
)
msisdn = phone_number_to_msisdn(body.country, body.phone_number)
logger.info("Request #%s to verify ownership of %s", body.send_attempt, msisdn)
if not await check_3pid_allowed(self.hs, "msisdn", msisdn):
raise SynapseError(
403,
# TODO: is this error message accurate? Looks like we've only rejected
# this phone number, not necessarily all phone numbers
"Account phone numbers are not authorized on this server",
Codes.THREEPID_DENIED,
)
await self.identity_handler.ratelimit_request_token_requests(
request, "msisdn", msisdn
)
if body.next_link:
# Raise if the provided next_link value isn't valid
assert_valid_next_link(self.hs, body.next_link)
existing_user_id = await self.store.get_user_id_by_threepid("msisdn", msisdn)
if existing_user_id is not None:
if self.hs.config.server.request_token_inhibit_3pid_errors:
# Make the client think the operation succeeded. See the rationale in the
# comments for request_token_inhibit_3pid_errors.
# Also wait for some random amount of time between 100ms and 1s to make it
# look like we did something.
await self.hs.get_clock().sleep(random.randint(1, 10) / 10)
return 200, {"sid": random_string(16)}
logger.info("MSISDN %s is already in use by %s", msisdn, existing_user_id)
raise SynapseError(400, "MSISDN is already in use", Codes.THREEPID_IN_USE)
if not self.hs.config.registration.account_threepid_delegate_msisdn:
logger.warning(
"No upstream msisdn account_threepid_delegate configured on the server to "
"handle this request"
)
raise SynapseError(
400,
"Adding phone numbers to user account is not supported by this homeserver",
)
ret = await self.identity_handler.requestMsisdnToken(
self.hs.config.registration.account_threepid_delegate_msisdn,
body.country,
body.phone_number,
body.client_secret,
body.send_attempt,
body.next_link,
)
threepid_send_requests.labels(type="msisdn", reason="add_threepid").observe(
body.send_attempt
)
logger.info("MSISDN %s: got response from identity server: %s", msisdn, ret)
return 200, ret
class AddThreepidEmailSubmitTokenServlet(RestServlet):
"""Handles 3PID validation token submission for adding an email to a user's account"""
PATTERNS = client_patterns(
"/add_threepid/email/submit_token$", releases=(), unstable=True
)
def __init__(self, hs: "HomeServer"):
super().__init__()
self.config = hs.config
self.clock = hs.get_clock()
self.store = hs.get_datastores().main
if self.config.email.can_verify_email:
self._failure_email_template = (
self.config.email.email_add_threepid_template_failure_html
)
async def on_GET(self, request: Request) -> None:
if not self.config.email.can_verify_email:
logger.warning(
"Adding emails have been disabled due to lack of an email config"
)
raise SynapseError(
400, "Adding an email to your account is disabled on this server"
)
sid = parse_string(request, "sid", required=True)
token = parse_string(request, "token", required=True)
client_secret = parse_string(request, "client_secret", required=True)
assert_valid_client_secret(client_secret)
# Attempt to validate a 3PID session
try:
# Mark the session as valid
next_link = await self.store.validate_threepid_session(
sid, client_secret, token, self.clock.time_msec()
)
# Perform a 302 redirect if next_link is set
if next_link:
request.setResponseCode(302)
request.setHeader("Location", next_link)
finish_request(request)
return None
# Otherwise show the success template
html = self.config.email.email_add_threepid_template_success_html_content
status_code = 200
except ThreepidValidationError as e:
status_code = e.code
# Show a failure page with a reason
template_vars = {"failure_reason": e.msg}
html = self._failure_email_template.render(**template_vars)
respond_with_html(request, status_code, html)
class AddThreepidMsisdnSubmitTokenServlet(RestServlet):
"""Handles 3PID validation token submission for adding a phone number to a user's
account
"""
PATTERNS = client_patterns(
"/add_threepid/msisdn/submit_token$", releases=(), unstable=True
)
class PostBody(RequestBodyModel):
client_secret: ClientSecretStr
sid: StrictStr
token: StrictStr
def __init__(self, hs: "HomeServer"):
super().__init__()
self.config = hs.config
self.clock = hs.get_clock()
self.store = hs.get_datastores().main
self.identity_handler = hs.get_identity_handler()
async def on_POST(self, request: Request) -> Tuple[int, JsonDict]:
if not self.config.registration.account_threepid_delegate_msisdn:
raise SynapseError(
400,
"This homeserver is not validating phone numbers. Use an identity server "
"instead.",
)
body = parse_and_validate_json_object_from_request(request, self.PostBody)
# Proxy submit_token request to msisdn threepid delegate
response = await self.identity_handler.proxy_msisdn_submit_token(
self.config.registration.account_threepid_delegate_msisdn,
body.client_secret,
body.sid,
body.token,
)
return 200, response
class ThreepidRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid$")
# This is used as a proxy for all the 3pid endpoints.
CATEGORY = "Client API requests"
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.identity_handler = hs.get_identity_handler()
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
self.datastore = self.hs.get_datastores().main
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request)
threepids = await self.datastore.user_get_threepids(requester.user.to_string())
return 200, {"threepids": [attr.asdict(t) for t in threepids]}
# NOTE(dmr): I have chosen not to use Pydantic to parse this request's body, because
# the endpoint is deprecated. (If you really want to, you could do this by reusing
# ThreePidBindRestServelet.PostBody with an `alias_generator` to handle
# `threePidCreds` versus `three_pid_creds`.
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
if self.hs.config.experimental.msc3861.enabled:
raise NotFoundError(errcode=Codes.UNRECOGNIZED)
if not self.hs.config.registration.enable_3pid_changes:
raise SynapseError(
400, "3PID changes are disabled on this server", Codes.FORBIDDEN
)
requester = await self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
body = parse_json_object_from_request(request)
threepid_creds = body.get("threePidCreds") or body.get("three_pid_creds")
if threepid_creds is None:
raise SynapseError(
400, "Missing param three_pid_creds", Codes.MISSING_PARAM
)
assert_params_in_dict(threepid_creds, ["client_secret", "sid"])
sid = threepid_creds["sid"]
client_secret = threepid_creds["client_secret"]
assert_valid_client_secret(client_secret)
validation_session = await self.identity_handler.validate_threepid_session(
client_secret, sid
)
if validation_session:
await self.auth_handler.add_threepid(
user_id,
validation_session["medium"],
validation_session["address"],
validation_session["validated_at"],
)
return 200, {}
raise SynapseError(
400, "No validated 3pid session found", Codes.THREEPID_AUTH_FAILED
)
class ThreepidAddRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/add$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.identity_handler = hs.get_identity_handler()
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
class PostBody(RequestBodyModel):
auth: Optional[AuthenticationData] = None
client_secret: ClientSecretStr
sid: StrictStr
@interactive_auth_handler
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
if not self.hs.config.registration.enable_3pid_changes:
raise SynapseError(
400, "3PID changes are disabled on this server", Codes.FORBIDDEN
)
requester = await self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
body = parse_and_validate_json_object_from_request(request, self.PostBody)
await self.auth_handler.validate_user_via_ui_auth(
requester,
request,
body.dict(exclude_unset=True),
"add a third-party identifier to your account",
)
validation_session = await self.identity_handler.validate_threepid_session(
body.client_secret, body.sid
)
if validation_session:
await self.auth_handler.add_threepid(
user_id,
validation_session["medium"],
validation_session["address"],
validation_session["validated_at"],
)
return 200, {}
raise SynapseError(
400, "No validated 3pid session found", Codes.THREEPID_AUTH_FAILED
)
class ThreepidBindRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/bind$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.identity_handler = hs.get_identity_handler()
self.auth = hs.get_auth()
class PostBody(RequestBodyModel):
client_secret: ClientSecretStr
id_access_token: StrictStr
id_server: StrictStr
sid: StrictStr
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
body = parse_and_validate_json_object_from_request(request, self.PostBody)
requester = await self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
await self.identity_handler.bind_threepid(
body.client_secret, body.sid, user_id, body.id_server, body.id_access_token
)
return 200, {}
class ThreepidUnbindRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/unbind$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.identity_handler = hs.get_identity_handler()
self.auth = hs.get_auth()
self.datastore = self.hs.get_datastores().main
class PostBody(RequestBodyModel):
address: StrictStr
id_server: Optional[StrictStr] = None
medium: Literal["email", "msisdn"]
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
"""Unbind the given 3pid from a specific identity server, or identity servers that are
known to have this 3pid bound
"""
requester = await self.auth.get_user_by_req(request)
body = parse_and_validate_json_object_from_request(request, self.PostBody)
# Attempt to unbind the threepid from an identity server. If id_server is None, try to
# unbind from all identity servers this threepid has been added to in the past
result = await self.identity_handler.try_unbind_threepid(
requester.user.to_string(), body.medium, body.address, body.id_server
)
return 200, {"id_server_unbind_result": "success" if result else "no-support"}
class ThreepidDeleteRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/delete$")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
class PostBody(RequestBodyModel):
address: StrictStr
id_server: Optional[StrictStr] = None
medium: Literal["email", "msisdn"]
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
if not self.hs.config.registration.enable_3pid_changes:
raise SynapseError(
400, "3PID changes are disabled on this server", Codes.FORBIDDEN
)
body = parse_and_validate_json_object_from_request(request, self.PostBody)
requester = await self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
try:
# Attempt to remove any known bindings of this third-party ID
# and user ID from identity servers.
ret = await self.hs.get_identity_handler().try_unbind_threepid(
user_id, body.medium, body.address, body.id_server
)
except Exception:
# NB. This endpoint should succeed if there is nothing to
# delete, so it should only throw if something is wrong
# that we ought to care about.
logger.exception("Failed to remove threepid")
raise SynapseError(500, "Failed to remove threepid")
if ret:
id_server_unbind_result = "success"
else:
id_server_unbind_result = "no-support"
# Delete the local association of this user ID and third-party ID.
await self.auth_handler.delete_local_threepid(
user_id, body.medium, body.address
)
return 200, {"id_server_unbind_result": id_server_unbind_result}
def assert_valid_next_link(hs: "HomeServer", next_link: str) -> None:
"""
Raises a SynapseError if a given next_link value is invalid
next_link is valid if the scheme is http(s) and the next_link.domain_whitelist config
option is either empty or contains a domain that matches the one in the given next_link
Args:
hs: The homeserver object
next_link: The next_link value given by the client
Raises:
SynapseError: If the next_link is invalid
"""
valid = True
# Parse the contents of the URL
next_link_parsed = urlparse(next_link)
# Scheme must not point to the local drive
if next_link_parsed.scheme == "file":
valid = False
# If the domain whitelist is set, the domain must be in it
if (
valid
and hs.config.server.next_link_domain_whitelist is not None
and next_link_parsed.hostname not in hs.config.server.next_link_domain_whitelist
):
valid = False
if not valid:
raise SynapseError(
400,
"'next_link' domain not included in whitelist, or not http(s)",
errcode=Codes.INVALID_PARAM,
)
class WhoamiRestServlet(RestServlet):
PATTERNS = client_patterns("/account/whoami$")
CATEGORY = "Client API requests"
def __init__(self, hs: "HomeServer"):
super().__init__()
self.auth = hs.get_auth()
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request, allow_guest=True)
response = {
"user_id": requester.user.to_string(),
# Entered spec in Matrix 1.2
"is_guest": bool(requester.is_guest),
}
# Appservices and similar accounts do not have device IDs
# that we can report on, so exclude them for compliance.
if requester.device_id is not None:
response["device_id"] = requester.device_id
return 200, response
class AccountStatusRestServlet(RestServlet):
PATTERNS = client_patterns(
"/org.matrix.msc3720/account_status$", unstable=True, releases=()
)
def __init__(self, hs: "HomeServer"):
super().__init__()
self._auth = hs.get_auth()
self._account_handler = hs.get_account_handler()
class PostBody(RequestBodyModel):
# TODO: we could validate that each user id is an mxid here, and/or parse it
# as a UserID
user_ids: List[StrictStr]
async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
await self._auth.get_user_by_req(request)
body = parse_and_validate_json_object_from_request(request, self.PostBody)
statuses, failures = await self._account_handler.get_account_statuses(
body.user_ids,
allow_remote=True,
)
return 200, {"account_statuses": statuses, "failures": failures}
def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
if hs.config.worker.worker_app is None:
if not hs.config.experimental.msc3861.enabled:
EmailPasswordRequestTokenRestServlet(hs).register(http_server)
DeactivateAccountRestServlet(hs).register(http_server)
PasswordRestServlet(hs).register(http_server)
EmailThreepidRequestTokenRestServlet(hs).register(http_server)
MsisdnThreepidRequestTokenRestServlet(hs).register(http_server)
AddThreepidEmailSubmitTokenServlet(hs).register(http_server)
AddThreepidMsisdnSubmitTokenServlet(hs).register(http_server)
ThreepidRestServlet(hs).register(http_server)
if hs.config.worker.worker_app is None:
ThreepidBindRestServlet(hs).register(http_server)
ThreepidUnbindRestServlet(hs).register(http_server)
if not hs.config.experimental.msc3861.enabled:
ThreepidAddRestServlet(hs).register(http_server)
ThreepidDeleteRestServlet(hs).register(http_server)
WhoamiRestServlet(hs).register(http_server)
if hs.config.worker.worker_app is None and hs.config.experimental.msc3720_enabled:
AccountStatusRestServlet(hs).register(http_server)