941 lines
		
	
	
		
			36 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			941 lines
		
	
	
		
			36 KiB
		
	
	
	
		
			Python
		
	
	
# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright 2017 Vector Creations Ltd
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import random
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from http import HTTPStatus
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from typing import TYPE_CHECKING, Optional, Tuple
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from urllib.parse import urlparse
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from twisted.web.server import Request
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from synapse.api.constants import LoginType
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from synapse.api.errors import (
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    Codes,
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    InteractiveAuthIncompleteError,
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    SynapseError,
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    ThreepidValidationError,
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)
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from synapse.config.emailconfig import ThreepidBehaviour
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from synapse.handlers.ui_auth import UIAuthSessionDataConstants
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from synapse.http.server import HttpServer, finish_request, respond_with_html
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from synapse.http.servlet import (
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    RestServlet,
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    assert_params_in_dict,
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    parse_json_object_from_request,
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    parse_string,
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)
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from synapse.http.site import SynapseRequest
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from synapse.metrics import threepid_send_requests
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from synapse.push.mailer import Mailer
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from synapse.types import JsonDict
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from synapse.util.msisdn import phone_number_to_msisdn
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from synapse.util.stringutils import assert_valid_client_secret, random_string
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from synapse.util.threepids import check_3pid_allowed, validate_email
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from ._base import client_patterns, interactive_auth_handler
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if TYPE_CHECKING:
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    from synapse.server import HomeServer
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logger = logging.getLogger(__name__)
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class EmailPasswordRequestTokenRestServlet(RestServlet):
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    PATTERNS = client_patterns("/account/password/email/requestToken$")
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    def __init__(self, hs: "HomeServer"):
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        super().__init__()
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        self.hs = hs
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        self.datastore = hs.get_datastores().main
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        self.config = hs.config
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        self.identity_handler = hs.get_identity_handler()
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        if self.config.email.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
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            self.mailer = Mailer(
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                hs=self.hs,
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                app_name=self.config.email.email_app_name,
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                template_html=self.config.email.email_password_reset_template_html,
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                template_text=self.config.email.email_password_reset_template_text,
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            )
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    async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
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        if self.config.email.threepid_behaviour_email == ThreepidBehaviour.OFF:
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            if self.config.email.local_threepid_handling_disabled_due_to_email_config:
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                logger.warning(
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                    "User password resets have been disabled due to lack of email config"
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                )
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            raise SynapseError(
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                400, "Email-based password resets have been disabled on this server"
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            )
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        body = parse_json_object_from_request(request)
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        assert_params_in_dict(body, ["client_secret", "email", "send_attempt"])
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        # Extract params from body
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        client_secret = body["client_secret"]
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        assert_valid_client_secret(client_secret)
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        # Canonicalise the email address. The addresses are all stored canonicalised
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        # in the database. This allows the user to reset his password without having to
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        # know the exact spelling (eg. upper and lower case) of address in the database.
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        # Stored in the database "foo@bar.com"
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        # User requests with "FOO@bar.com" would raise a Not Found error
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        try:
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            email = validate_email(body["email"])
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        except ValueError as e:
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            raise SynapseError(400, str(e))
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        send_attempt = body["send_attempt"]
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        next_link = body.get("next_link")  # Optional param
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        if next_link:
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            # Raise if the provided next_link value isn't valid
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            assert_valid_next_link(self.hs, next_link)
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        await self.identity_handler.ratelimit_request_token_requests(
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            request, "email", email
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        )
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        # The email will be sent to the stored address.
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        # This avoids a potential account hijack by requesting a password reset to
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        # an email address which is controlled by the attacker but which, after
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        # canonicalisation, matches the one in our database.
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        existing_user_id = await self.hs.get_datastores().main.get_user_id_by_threepid(
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            "email", email
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        )
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        if existing_user_id is None:
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            if self.config.server.request_token_inhibit_3pid_errors:
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                # Make the client think the operation succeeded. See the rationale in the
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                # comments for request_token_inhibit_3pid_errors.
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                # Also wait for some random amount of time between 100ms and 1s to make it
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                # look like we did something.
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                await self.hs.get_clock().sleep(random.randint(1, 10) / 10)
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                return 200, {"sid": random_string(16)}
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            raise SynapseError(400, "Email not found", Codes.THREEPID_NOT_FOUND)
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        if self.config.email.threepid_behaviour_email == ThreepidBehaviour.REMOTE:
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            assert self.hs.config.registration.account_threepid_delegate_email
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            # Have the configured identity server handle the request
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            ret = await self.identity_handler.requestEmailToken(
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                self.hs.config.registration.account_threepid_delegate_email,
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                email,
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                client_secret,
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                send_attempt,
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                next_link,
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            )
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        else:
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            # Send password reset emails from Synapse
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            sid = await self.identity_handler.send_threepid_validation(
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                email,
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                client_secret,
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                send_attempt,
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                self.mailer.send_password_reset_mail,
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                next_link,
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            )
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            # Wrap the session id in a JSON object
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            ret = {"sid": sid}
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        threepid_send_requests.labels(type="email", reason="password_reset").observe(
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            send_attempt
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        )
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        return 200, ret
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class PasswordRestServlet(RestServlet):
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    PATTERNS = client_patterns("/account/password$")
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    def __init__(self, hs: "HomeServer"):
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        super().__init__()
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        self.hs = hs
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        self.auth = hs.get_auth()
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        self.auth_handler = hs.get_auth_handler()
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        self.datastore = self.hs.get_datastores().main
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        self.password_policy_handler = hs.get_password_policy_handler()
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        self._set_password_handler = hs.get_set_password_handler()
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    @interactive_auth_handler
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    async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
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        body = parse_json_object_from_request(request)
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        # we do basic sanity checks here because the auth layer will store these
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        # in sessions. Pull out the new password provided to us.
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        new_password = body.pop("new_password", None)
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        if new_password is not None:
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            if not isinstance(new_password, str) or len(new_password) > 512:
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                raise SynapseError(400, "Invalid password")
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            self.password_policy_handler.validate_password(new_password)
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        # there are two possibilities here. Either the user does not have an
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        # access token, and needs to do a password reset; or they have one and
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        # need to validate their identity.
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        #
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        # In the first case, we offer a couple of means of identifying
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        # themselves (email and msisdn, though it's unclear if msisdn actually
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        # works).
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        #
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        # In the second case, we require a password to confirm their identity.
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        requester = None
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        if self.auth.has_access_token(request):
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            requester = await self.auth.get_user_by_req(request)
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            try:
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                params, session_id = await self.auth_handler.validate_user_via_ui_auth(
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                    requester,
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                    request,
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                    body,
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                    "modify your account password",
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                )
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            except InteractiveAuthIncompleteError as e:
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                # The user needs to provide more steps to complete auth, but
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                # they're not required to provide the password again.
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                #
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                # If a password is available now, hash the provided password and
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                # store it for later.
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                if new_password:
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                    new_password_hash = await self.auth_handler.hash(new_password)
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                    await self.auth_handler.set_session_data(
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                        e.session_id,
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                        UIAuthSessionDataConstants.PASSWORD_HASH,
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                        new_password_hash,
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                    )
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                raise
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            user_id = requester.user.to_string()
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        else:
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            try:
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                result, params, session_id = await self.auth_handler.check_ui_auth(
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                    [[LoginType.EMAIL_IDENTITY]],
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                    request,
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                    body,
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                    "modify your account password",
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                )
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            except InteractiveAuthIncompleteError as e:
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                # The user needs to provide more steps to complete auth, but
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                # they're not required to provide the password again.
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                #
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                # If a password is available now, hash the provided password and
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                # store it for later.
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                if new_password:
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                    new_password_hash = await self.auth_handler.hash(new_password)
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                    await self.auth_handler.set_session_data(
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                        e.session_id,
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                        UIAuthSessionDataConstants.PASSWORD_HASH,
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                        new_password_hash,
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                    )
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                raise
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            if LoginType.EMAIL_IDENTITY in result:
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                threepid = result[LoginType.EMAIL_IDENTITY]
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                if "medium" not in threepid or "address" not in threepid:
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                    raise SynapseError(500, "Malformed threepid")
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                if threepid["medium"] == "email":
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                    # For emails, canonicalise the address.
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                    # We store all email addresses canonicalised in the DB.
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                    # (See add_threepid in synapse/handlers/auth.py)
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                    try:
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                        threepid["address"] = validate_email(threepid["address"])
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                    except ValueError as e:
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                        raise SynapseError(400, str(e))
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                # if using email, we must know about the email they're authing with!
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                threepid_user_id = await self.datastore.get_user_id_by_threepid(
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                    threepid["medium"], threepid["address"]
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                )
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                if not threepid_user_id:
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                    raise SynapseError(404, "Email address not found", Codes.NOT_FOUND)
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                user_id = threepid_user_id
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            else:
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                logger.error("Auth succeeded but no known type! %r", result.keys())
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                raise SynapseError(500, "", Codes.UNKNOWN)
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        # If we have a password in this request, prefer it. Otherwise, use the
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        # password hash from an earlier request.
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        if new_password:
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            password_hash: Optional[str] = await self.auth_handler.hash(new_password)
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        elif session_id is not None:
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            password_hash = await self.auth_handler.get_session_data(
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                session_id, UIAuthSessionDataConstants.PASSWORD_HASH, None
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            )
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        else:
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            # UI validation was skipped, but the request did not include a new
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            # password.
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            password_hash = None
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        if not password_hash:
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            raise SynapseError(400, "Missing params: password", Codes.MISSING_PARAM)
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        logout_devices = params.get("logout_devices", True)
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        await self._set_password_handler.set_password(
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            user_id, password_hash, logout_devices, requester
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        )
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        return 200, {}
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class DeactivateAccountRestServlet(RestServlet):
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    PATTERNS = client_patterns("/account/deactivate$")
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    def __init__(self, hs: "HomeServer"):
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        super().__init__()
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        self.hs = hs
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        self.auth = hs.get_auth()
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        self.auth_handler = hs.get_auth_handler()
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        self._deactivate_account_handler = hs.get_deactivate_account_handler()
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    @interactive_auth_handler
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    async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
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        body = parse_json_object_from_request(request)
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        erase = body.get("erase", False)
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        if not isinstance(erase, bool):
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            raise SynapseError(
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                HTTPStatus.BAD_REQUEST,
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                "Param 'erase' must be a boolean, if given",
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                Codes.BAD_JSON,
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            )
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        requester = await self.auth.get_user_by_req(request)
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        # allow ASes to deactivate their own users
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        if requester.app_service:
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            await self._deactivate_account_handler.deactivate_account(
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                requester.user.to_string(), erase, requester
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            )
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            return 200, {}
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        await self.auth_handler.validate_user_via_ui_auth(
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            requester,
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            request,
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            body,
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            "deactivate your account",
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        )
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        result = await self._deactivate_account_handler.deactivate_account(
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            requester.user.to_string(),
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            erase,
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            requester,
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            id_server=body.get("id_server"),
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        )
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						|
        if result:
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            id_server_unbind_result = "success"
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						|
        else:
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						|
            id_server_unbind_result = "no-support"
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						|
        return 200, {"id_server_unbind_result": id_server_unbind_result}
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class EmailThreepidRequestTokenRestServlet(RestServlet):
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    PATTERNS = client_patterns("/account/3pid/email/requestToken$")
 | 
						|
 | 
						|
    def __init__(self, hs: "HomeServer"):
 | 
						|
        super().__init__()
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						|
        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.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
 | 
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            self.mailer = Mailer(
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						|
                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 self.config.email.threepid_behaviour_email == ThreepidBehaviour.OFF:
 | 
						|
            if self.config.email.local_threepid_handling_disabled_due_to_email_config:
 | 
						|
                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_json_object_from_request(request)
 | 
						|
        assert_params_in_dict(body, ["client_secret", "email", "send_attempt"])
 | 
						|
        client_secret = body["client_secret"]
 | 
						|
        assert_valid_client_secret(client_secret)
 | 
						|
 | 
						|
        # Canonicalise the email address. The addresses are all stored canonicalised
 | 
						|
        # in the database.
 | 
						|
        # This ensures that the validation email is sent to the canonicalised address
 | 
						|
        # as it will later be entered into the database.
 | 
						|
        # Otherwise the email will be sent to "FOO@bar.com" and stored as
 | 
						|
        # "foo@bar.com" in database.
 | 
						|
        try:
 | 
						|
            email = validate_email(body["email"])
 | 
						|
        except ValueError as e:
 | 
						|
            raise SynapseError(400, str(e))
 | 
						|
        send_attempt = body["send_attempt"]
 | 
						|
        next_link = body.get("next_link")  # Optional param
 | 
						|
 | 
						|
        if not await check_3pid_allowed(self.hs, "email", 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", email
 | 
						|
        )
 | 
						|
 | 
						|
        if next_link:
 | 
						|
            # Raise if the provided next_link value isn't valid
 | 
						|
            assert_valid_next_link(self.hs, next_link)
 | 
						|
 | 
						|
        existing_user_id = await self.store.get_user_id_by_threepid("email", 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)
 | 
						|
 | 
						|
        if self.config.email.threepid_behaviour_email == ThreepidBehaviour.REMOTE:
 | 
						|
            assert self.hs.config.registration.account_threepid_delegate_email
 | 
						|
 | 
						|
            # Have the configured identity server handle the request
 | 
						|
            ret = await self.identity_handler.requestEmailToken(
 | 
						|
                self.hs.config.registration.account_threepid_delegate_email,
 | 
						|
                email,
 | 
						|
                client_secret,
 | 
						|
                send_attempt,
 | 
						|
                next_link,
 | 
						|
            )
 | 
						|
        else:
 | 
						|
            # Send threepid validation emails from Synapse
 | 
						|
            sid = await self.identity_handler.send_threepid_validation(
 | 
						|
                email,
 | 
						|
                client_secret,
 | 
						|
                send_attempt,
 | 
						|
                self.mailer.send_add_threepid_mail,
 | 
						|
                next_link,
 | 
						|
            )
 | 
						|
 | 
						|
            # Wrap the session id in a JSON object
 | 
						|
            ret = {"sid": sid}
 | 
						|
 | 
						|
        threepid_send_requests.labels(type="email", reason="add_threepid").observe(
 | 
						|
            send_attempt
 | 
						|
        )
 | 
						|
 | 
						|
        return 200, ret
 | 
						|
 | 
						|
 | 
						|
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_json_object_from_request(request)
 | 
						|
        assert_params_in_dict(
 | 
						|
            body, ["client_secret", "country", "phone_number", "send_attempt"]
 | 
						|
        )
 | 
						|
        client_secret = body["client_secret"]
 | 
						|
        assert_valid_client_secret(client_secret)
 | 
						|
 | 
						|
        country = body["country"]
 | 
						|
        phone_number = body["phone_number"]
 | 
						|
        send_attempt = body["send_attempt"]
 | 
						|
        next_link = body.get("next_link")  # Optional param
 | 
						|
 | 
						|
        msisdn = phone_number_to_msisdn(country, phone_number)
 | 
						|
 | 
						|
        if not await check_3pid_allowed(self.hs, "msisdn", msisdn):
 | 
						|
            raise SynapseError(
 | 
						|
                403,
 | 
						|
                "Account phone numbers are not authorized on this server",
 | 
						|
                Codes.THREEPID_DENIED,
 | 
						|
            )
 | 
						|
 | 
						|
        await self.identity_handler.ratelimit_request_token_requests(
 | 
						|
            request, "msisdn", msisdn
 | 
						|
        )
 | 
						|
 | 
						|
        if next_link:
 | 
						|
            # Raise if the provided next_link value isn't valid
 | 
						|
            assert_valid_next_link(self.hs, 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)}
 | 
						|
 | 
						|
            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,
 | 
						|
            country,
 | 
						|
            phone_number,
 | 
						|
            client_secret,
 | 
						|
            send_attempt,
 | 
						|
            next_link,
 | 
						|
        )
 | 
						|
 | 
						|
        threepid_send_requests.labels(type="msisdn", reason="add_threepid").observe(
 | 
						|
            send_attempt
 | 
						|
        )
 | 
						|
 | 
						|
        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.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
 | 
						|
            self._failure_email_template = (
 | 
						|
                self.config.email.email_add_threepid_template_failure_html
 | 
						|
            )
 | 
						|
 | 
						|
    async def on_GET(self, request: Request) -> None:
 | 
						|
        if self.config.email.threepid_behaviour_email == ThreepidBehaviour.OFF:
 | 
						|
            if self.config.email.local_threepid_handling_disabled_due_to_email_config:
 | 
						|
                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"
 | 
						|
            )
 | 
						|
        elif self.config.email.threepid_behaviour_email == ThreepidBehaviour.REMOTE:
 | 
						|
            raise SynapseError(
 | 
						|
                400,
 | 
						|
                "This homeserver is not validating threepids. Use an identity server "
 | 
						|
                "instead.",
 | 
						|
            )
 | 
						|
 | 
						|
        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$", releases=(), unstable=True
 | 
						|
    )
 | 
						|
 | 
						|
    def __init__(self, hs: "HomeServer"):
 | 
						|
        super().__init__()
 | 
						|
        self.config = hs.config
 | 
						|
        self.clock = hs.get_clock()
 | 
						|
        self.store = hs.get_datastores().main
 | 
						|
        self.identity_handler = hs.get_identity_handler()
 | 
						|
 | 
						|
    async def on_POST(self, request: Request) -> Tuple[int, JsonDict]:
 | 
						|
        if not self.config.registration.account_threepid_delegate_msisdn:
 | 
						|
            raise SynapseError(
 | 
						|
                400,
 | 
						|
                "This homeserver is not validating phone numbers. Use an identity server "
 | 
						|
                "instead.",
 | 
						|
            )
 | 
						|
 | 
						|
        body = parse_json_object_from_request(request)
 | 
						|
        assert_params_in_dict(body, ["client_secret", "sid", "token"])
 | 
						|
        assert_valid_client_secret(body["client_secret"])
 | 
						|
 | 
						|
        # Proxy submit_token request to msisdn threepid delegate
 | 
						|
        response = await self.identity_handler.proxy_msisdn_submit_token(
 | 
						|
            self.config.registration.account_threepid_delegate_msisdn,
 | 
						|
            body["client_secret"],
 | 
						|
            body["sid"],
 | 
						|
            body["token"],
 | 
						|
        )
 | 
						|
        return 200, response
 | 
						|
 | 
						|
 | 
						|
class ThreepidRestServlet(RestServlet):
 | 
						|
    PATTERNS = client_patterns("/account/3pid$")
 | 
						|
 | 
						|
    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": threepids}
 | 
						|
 | 
						|
    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_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()
 | 
						|
 | 
						|
    @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_json_object_from_request(request)
 | 
						|
 | 
						|
        assert_params_in_dict(body, ["client_secret", "sid"])
 | 
						|
        sid = body["sid"]
 | 
						|
        client_secret = body["client_secret"]
 | 
						|
        assert_valid_client_secret(client_secret)
 | 
						|
 | 
						|
        await self.auth_handler.validate_user_via_ui_auth(
 | 
						|
            requester,
 | 
						|
            request,
 | 
						|
            body,
 | 
						|
            "add a third-party identifier to your account",
 | 
						|
        )
 | 
						|
 | 
						|
        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 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()
 | 
						|
 | 
						|
    async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
 | 
						|
        body = parse_json_object_from_request(request)
 | 
						|
 | 
						|
        assert_params_in_dict(body, ["id_server", "sid", "client_secret"])
 | 
						|
        id_server = body["id_server"]
 | 
						|
        sid = body["sid"]
 | 
						|
        id_access_token = body.get("id_access_token")  # optional
 | 
						|
        client_secret = body["client_secret"]
 | 
						|
        assert_valid_client_secret(client_secret)
 | 
						|
 | 
						|
        requester = await self.auth.get_user_by_req(request)
 | 
						|
        user_id = requester.user.to_string()
 | 
						|
 | 
						|
        await self.identity_handler.bind_threepid(
 | 
						|
            client_secret, sid, user_id, id_server, id_access_token
 | 
						|
        )
 | 
						|
 | 
						|
        return 200, {}
 | 
						|
 | 
						|
 | 
						|
class ThreepidUnbindRestServlet(RestServlet):
 | 
						|
    PATTERNS = client_patterns("/account/3pid/unbind$")
 | 
						|
 | 
						|
    def __init__(self, hs: "HomeServer"):
 | 
						|
        super().__init__()
 | 
						|
        self.hs = hs
 | 
						|
        self.identity_handler = hs.get_identity_handler()
 | 
						|
        self.auth = hs.get_auth()
 | 
						|
        self.datastore = self.hs.get_datastores().main
 | 
						|
 | 
						|
    async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
 | 
						|
        """Unbind the given 3pid from a specific identity server, or identity servers that are
 | 
						|
        known to have this 3pid bound
 | 
						|
        """
 | 
						|
        requester = await self.auth.get_user_by_req(request)
 | 
						|
        body = parse_json_object_from_request(request)
 | 
						|
        assert_params_in_dict(body, ["medium", "address"])
 | 
						|
 | 
						|
        medium = body.get("medium")
 | 
						|
        address = body.get("address")
 | 
						|
        id_server = body.get("id_server")
 | 
						|
 | 
						|
        # Attempt to unbind the threepid from an identity server. If id_server is None, try to
 | 
						|
        # unbind from all identity servers this threepid has been added to in the past
 | 
						|
        result = await self.identity_handler.try_unbind_threepid(
 | 
						|
            requester.user.to_string(),
 | 
						|
            {"address": address, "medium": medium, "id_server": id_server},
 | 
						|
        )
 | 
						|
        return 200, {"id_server_unbind_result": "success" if result else "no-support"}
 | 
						|
 | 
						|
 | 
						|
class ThreepidDeleteRestServlet(RestServlet):
 | 
						|
    PATTERNS = client_patterns("/account/3pid/delete$")
 | 
						|
 | 
						|
    def __init__(self, hs: "HomeServer"):
 | 
						|
        super().__init__()
 | 
						|
        self.hs = hs
 | 
						|
        self.auth = hs.get_auth()
 | 
						|
        self.auth_handler = hs.get_auth_handler()
 | 
						|
 | 
						|
    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_json_object_from_request(request)
 | 
						|
        assert_params_in_dict(body, ["medium", "address"])
 | 
						|
 | 
						|
        requester = await self.auth.get_user_by_req(request)
 | 
						|
        user_id = requester.user.to_string()
 | 
						|
 | 
						|
        try:
 | 
						|
            ret = await self.auth_handler.delete_threepid(
 | 
						|
                user_id, body["medium"], body["address"], body.get("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"
 | 
						|
 | 
						|
        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$")
 | 
						|
 | 
						|
    def __init__(self, hs: "HomeServer"):
 | 
						|
        super().__init__()
 | 
						|
        self.auth = hs.get_auth()
 | 
						|
 | 
						|
    async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
 | 
						|
        requester = await self.auth.get_user_by_req(request, allow_guest=True)
 | 
						|
 | 
						|
        response = {
 | 
						|
            "user_id": requester.user.to_string(),
 | 
						|
            # Entered spec in Matrix 1.2
 | 
						|
            "is_guest": bool(requester.is_guest),
 | 
						|
        }
 | 
						|
 | 
						|
        # Appservices and similar accounts do not have device IDs
 | 
						|
        # that we can report on, so exclude them for compliance.
 | 
						|
        if requester.device_id is not None:
 | 
						|
            response["device_id"] = requester.device_id
 | 
						|
 | 
						|
        return 200, response
 | 
						|
 | 
						|
 | 
						|
class AccountStatusRestServlet(RestServlet):
 | 
						|
    PATTERNS = client_patterns(
 | 
						|
        "/org.matrix.msc3720/account_status$", unstable=True, releases=()
 | 
						|
    )
 | 
						|
 | 
						|
    def __init__(self, hs: "HomeServer"):
 | 
						|
        super().__init__()
 | 
						|
        self._auth = hs.get_auth()
 | 
						|
        self._account_handler = hs.get_account_handler()
 | 
						|
 | 
						|
    async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
 | 
						|
        await self._auth.get_user_by_req(request)
 | 
						|
 | 
						|
        body = parse_json_object_from_request(request)
 | 
						|
        if "user_ids" not in body:
 | 
						|
            raise SynapseError(
 | 
						|
                400, "Required parameter 'user_ids' is missing", Codes.MISSING_PARAM
 | 
						|
            )
 | 
						|
 | 
						|
        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:
 | 
						|
    EmailPasswordRequestTokenRestServlet(hs).register(http_server)
 | 
						|
    PasswordRestServlet(hs).register(http_server)
 | 
						|
    DeactivateAccountRestServlet(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)
 | 
						|
    ThreepidAddRestServlet(hs).register(http_server)
 | 
						|
    ThreepidBindRestServlet(hs).register(http_server)
 | 
						|
    ThreepidUnbindRestServlet(hs).register(http_server)
 | 
						|
    ThreepidDeleteRestServlet(hs).register(http_server)
 | 
						|
    WhoamiRestServlet(hs).register(http_server)
 | 
						|
 | 
						|
    if hs.config.experimental.msc3720_enabled:
 | 
						|
        AccountStatusRestServlet(hs).register(http_server)
 |