Esempio n. 1
0
    def on_POST(self, request):
        body = parse_json_object_from_request(request)

        # 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.

        if has_access_token(request):
            requester = yield self.auth.get_user_by_req(request)
            params = yield self.auth_handler.validate_user_via_ui_auth(
                requester,
                body,
                self.hs.get_ip_from_request(request),
            )
            user_id = requester.user.to_string()
        else:
            requester = None
            result, params, _ = yield self.auth_handler.check_auth(
                [[LoginType.EMAIL_IDENTITY], [LoginType.MSISDN]],
                body,
                self.hs.get_ip_from_request(request),
            )

            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, transform the address to lowercase.
                    # We store all email addreses as lowercase in the DB.
                    # (See add_threepid in synapse/handlers/auth.py)
                    threepid['address'] = threepid['address'].lower()
                # if using email, we must know about the email they're authing with!
                threepid_user_id = yield 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!",
                             result.keys())
                raise SynapseError(500, "", Codes.UNKNOWN)

        if 'new_password' not in params:
            raise SynapseError(400, "", Codes.MISSING_PARAM)
        new_password = params['new_password']

        yield self._set_password_handler.set_password(user_id, new_password,
                                                      requester)

        defer.returnValue((200, {}))
Esempio n. 2
0
    def on_POST(self, request):
        body = parse_json_object_from_request(request)

        # 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.

        if has_access_token(request):
            requester = yield self.auth.get_user_by_req(request)
            params = yield self.auth_handler.validate_user_via_ui_auth(
                requester, body, self.hs.get_ip_from_request(request),
            )
            user_id = requester.user.to_string()
        else:
            requester = None
            result, params, _ = yield self.auth_handler.check_auth(
                [[LoginType.EMAIL_IDENTITY], [LoginType.MSISDN]],
                body, self.hs.get_ip_from_request(request),
            )

            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, transform the address to lowercase.
                    # We store all email addreses as lowercase in the DB.
                    # (See add_threepid in synapse/handlers/auth.py)
                    threepid['address'] = threepid['address'].lower()
                # if using email, we must know about the email they're authing with!
                threepid_user_id = yield 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!", result.keys())
                raise SynapseError(500, "", Codes.UNKNOWN)

        if 'new_password' not in params:
            raise SynapseError(400, "", Codes.MISSING_PARAM)
        new_password = params['new_password']

        yield self._set_password_handler.set_password(
            user_id, new_password, requester
        )

        defer.returnValue((200, {}))
Esempio n. 3
0
    def on_POST(self, request):
        body = parse_json_object_from_request(request)

        # if the caller provides an access token, it ought to be valid.
        requester = None
        if has_access_token(request):
            requester = yield self.auth.get_user_by_req(
                request,
            )  # type: synapse.types.Requester

        # allow ASes to dectivate their own users
        if requester and requester.app_service:
            yield self.auth_handler.deactivate_account(
                requester.user.to_string()
            )
            defer.returnValue((200, {}))

        authed, result, params, _ = yield self.auth_handler.check_auth([
            [LoginType.PASSWORD],
        ], body, self.hs.get_ip_from_request(request))

        if not authed:
            defer.returnValue((401, result))

        if LoginType.PASSWORD in result:
            user_id = result[LoginType.PASSWORD]
            # if using password, they should also be logged in
            if requester is None:
                raise SynapseError(
                    400,
                    "Deactivate account requires an access_token",
                    errcode=Codes.MISSING_TOKEN
                )
            if requester.user.to_string() != user_id:
                raise LoginError(400, "", Codes.UNKNOWN)
        else:
            logger.error("Auth succeeded but no known type!", result.keys())
            raise SynapseError(500, "", Codes.UNKNOWN)

        yield self.auth_handler.deactivate_account(user_id)
        defer.returnValue((200, {}))
Esempio n. 4
0
    def on_POST(self, request):
        yield run_on_reactor()

        body = parse_json_object_from_request(request)

        kind = "user"
        if "kind" in request.args:
            kind = request.args["kind"][0]

        if kind == "guest":
            ret = yield self._do_guest_registration(body)
            defer.returnValue(ret)
            return
        elif kind != "user":
            raise UnrecognizedRequestError(
                "Do not understand membership kind: %s" % (kind, ))

        # we do basic sanity checks here because the auth layer will store these
        # in sessions. Pull out the username/password provided to us.
        desired_password = None
        if 'password' in body:
            if (not isinstance(body['password'], basestring)
                    or len(body['password']) > 512):
                raise SynapseError(400, "Invalid password")
            desired_password = body["password"]

        desired_username = None
        if 'username' in body:
            if (not isinstance(body['username'], basestring)
                    or len(body['username']) > 512):
                raise SynapseError(400, "Invalid username")
            desired_username = body['username']

        appservice = None
        if has_access_token(request):
            appservice = yield self.auth.get_appservice_by_req(request)

        # fork off as soon as possible for ASes and shared secret auth which
        # have completely different registration flows to normal users

        # == Application Service Registration ==
        if appservice:
            # Set the desired user according to the AS API (which uses the
            # 'user' key not 'username'). Since this is a new addition, we'll
            # fallback to 'username' if they gave one.
            desired_username = body.get("user", desired_username)
            access_token = get_access_token_from_request(request)

            if isinstance(desired_username, basestring):
                result = yield self._do_appservice_registration(
                    desired_username, access_token, body)
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # == Shared Secret Registration == (e.g. create new user scripts)
        if 'mac' in body:
            # FIXME: Should we really be determining if this is shared secret
            # auth based purely on the 'mac' key?
            result = yield self._do_shared_secret_registration(
                desired_username, desired_password, body)
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # == Normal User Registration == (everyone else)
        if not self.hs.config.enable_registration:
            raise SynapseError(403, "Registration has been disabled")

        guest_access_token = body.get("guest_access_token", None)

        if ('initial_device_display_name' in body and 'password' not in body):
            # ignore 'initial_device_display_name' if sent without
            # a password to work around a client bug where it sent
            # the 'initial_device_display_name' param alone, wiping out
            # the original registration params
            logger.warn(
                "Ignoring initial_device_display_name without password")
            del body['initial_device_display_name']

        session_id = self.auth_handler.get_session_id(body)
        registered_user_id = None
        if session_id:
            # if we get a registered user id out of here, it means we previously
            # registered a user for this session, so we could just return the
            # user here. We carry on and go through the auth checks though,
            # for paranoia.
            registered_user_id = self.auth_handler.get_session_data(
                session_id, "registered_user_id", None)

        if desired_username is not None:
            yield self.registration_handler.check_username(
                desired_username,
                guest_access_token=guest_access_token,
                assigned_user_id=registered_user_id,
            )

        # Only give msisdn flows if the x_show_msisdn flag is given:
        # this is a hack to work around the fact that clients were shipped
        # that use fallback registration if they see any flows that they don't
        # recognise, which means we break registration for these clients if we
        # advertise msisdn flows. Once usage of Riot iOS <=0.3.9 and Riot
        # Android <=0.6.9 have fallen below an acceptable threshold, this
        # parameter should go away and we should always advertise msisdn flows.
        show_msisdn = False
        if 'x_show_msisdn' in body and body['x_show_msisdn']:
            show_msisdn = True

        if self.hs.config.enable_registration_captcha:
            flows = [
                [LoginType.RECAPTCHA],
                [LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA],
            ]
            if show_msisdn:
                flows.extend([
                    [LoginType.MSISDN, LoginType.RECAPTCHA],
                    [
                        LoginType.MSISDN, LoginType.EMAIL_IDENTITY,
                        LoginType.RECAPTCHA
                    ],
                ])
        else:
            flows = [
                [LoginType.DUMMY],
                [LoginType.EMAIL_IDENTITY],
            ]
            if show_msisdn:
                flows.extend([
                    [LoginType.MSISDN],
                    [LoginType.MSISDN, LoginType.EMAIL_IDENTITY],
                ])

        authed, auth_result, params, session_id = yield self.auth_handler.check_auth(
            flows, body, self.hs.get_ip_from_request(request))

        if not authed:
            defer.returnValue((401, auth_result))
            return

        if registered_user_id is not None:
            logger.info("Already registered user ID %r for this session",
                        registered_user_id)
            # don't re-register the threepids
            add_email = False
            add_msisdn = False
        else:
            # NB: This may be from the auth handler and NOT from the POST
            if 'password' not in params:
                raise SynapseError(400, "Missing password.",
                                   Codes.MISSING_PARAM)

            desired_username = params.get("username", None)
            new_password = params.get("password", None)
            guest_access_token = params.get("guest_access_token", None)

            (registered_user_id, _) = yield self.registration_handler.register(
                localpart=desired_username,
                password=new_password,
                guest_access_token=guest_access_token,
                generate_token=False,
            )

            # remember that we've now registered that user account, and with
            #  what user ID (since the user may not have specified)
            self.auth_handler.set_session_data(session_id,
                                               "registered_user_id",
                                               registered_user_id)

            add_email = True
            add_msisdn = True

        return_dict = yield self._create_registration_details(
            registered_user_id, params)

        if add_email and auth_result and LoginType.EMAIL_IDENTITY in auth_result:
            threepid = auth_result[LoginType.EMAIL_IDENTITY]
            yield self._register_email_threepid(registered_user_id, threepid,
                                                return_dict["access_token"],
                                                params.get("bind_email"))

        if add_msisdn and auth_result and LoginType.MSISDN in auth_result:
            threepid = auth_result[LoginType.MSISDN]
            yield self._register_msisdn_threepid(registered_user_id, threepid,
                                                 return_dict["access_token"],
                                                 params.get("bind_msisdn"))

        defer.returnValue((200, return_dict))
Esempio n. 5
0
    def on_POST(self, request):
        body = parse_json_object_from_request(request)

        kind = "user"
        if "kind" in request.args:
            kind = request.args["kind"][0]

        if kind == "guest":
            ret = yield self._do_guest_registration(body)
            defer.returnValue(ret)
            return
        elif kind != "user":
            raise UnrecognizedRequestError(
                "Do not understand membership kind: %s" % (kind, ))

        # we do basic sanity checks here because the auth layer will store these
        # in sessions. Pull out the username/password provided to us.
        desired_password = None
        if 'password' in body:
            if (not isinstance(body['password'], string_types)
                    or len(body['password']) > 512):
                raise SynapseError(400, "Invalid password")
            desired_password = body["password"]

        desired_username = None
        if 'username' in body:
            if (not isinstance(body['username'], string_types)
                    or len(body['username']) > 512):
                raise SynapseError(400, "Invalid username")
            desired_username = body['username']

        appservice = None
        if has_access_token(request):
            appservice = yield self.auth.get_appservice_by_req(request)

        # fork off as soon as possible for ASes and shared secret auth which
        # have completely different registration flows to normal users

        # == Application Service Registration ==
        if appservice:
            # Set the desired user according to the AS API (which uses the
            # 'user' key not 'username'). Since this is a new addition, we'll
            # fallback to 'username' if they gave one.
            desired_username = body.get("user", desired_username)

            # XXX we should check that desired_username is valid. Currently
            # we give appservices carte blanche for any insanity in mxids,
            # because the IRC bridges rely on being able to register stupid
            # IDs.

            access_token = get_access_token_from_request(request)

            if isinstance(desired_username, string_types):
                result = yield self._do_appservice_registration(
                    desired_username, access_token, body)
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # for either shared secret or regular registration, downcase the
        # provided username before attempting to register it. This should mean
        # that people who try to register with upper-case in their usernames
        # don't get a nasty surprise. (Note that we treat username
        # case-insenstively in login, so they are free to carry on imagining
        # that their username is CrAzYh4cKeR if that keeps them happy)
        if desired_username is not None:
            desired_username = desired_username.lower()

        # == Shared Secret Registration == (e.g. create new user scripts)
        if 'mac' in body:
            # FIXME: Should we really be determining if this is shared secret
            # auth based purely on the 'mac' key?
            result = yield self._do_shared_secret_registration(
                desired_username, desired_password, body)
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # == Normal User Registration == (everyone else)
        if not self.hs.config.enable_registration:
            raise SynapseError(403, "Registration has been disabled")

        guest_access_token = body.get("guest_access_token", None)

        if ('initial_device_display_name' in body and 'password' not in body):
            # ignore 'initial_device_display_name' if sent without
            # a password to work around a client bug where it sent
            # the 'initial_device_display_name' param alone, wiping out
            # the original registration params
            logger.warn(
                "Ignoring initial_device_display_name without password")
            del body['initial_device_display_name']

        session_id = self.auth_handler.get_session_id(body)
        registered_user_id = None
        if session_id:
            # if we get a registered user id out of here, it means we previously
            # registered a user for this session, so we could just return the
            # user here. We carry on and go through the auth checks though,
            # for paranoia.
            registered_user_id = self.auth_handler.get_session_data(
                session_id, "registered_user_id", None)

        if desired_username is not None:
            yield self.registration_handler.check_username(
                desired_username,
                guest_access_token=guest_access_token,
                assigned_user_id=registered_user_id,
            )

        # Only give msisdn flows if the x_show_msisdn flag is given:
        # this is a hack to work around the fact that clients were shipped
        # that use fallback registration if they see any flows that they don't
        # recognise, which means we break registration for these clients if we
        # advertise msisdn flows. Once usage of Riot iOS <=0.3.9 and Riot
        # Android <=0.6.9 have fallen below an acceptable threshold, this
        # parameter should go away and we should always advertise msisdn flows.
        show_msisdn = False
        if 'x_show_msisdn' in body and body['x_show_msisdn']:
            show_msisdn = True

        # FIXME: need a better error than "no auth flow found" for scenarios
        # where we required 3PID for registration but the user didn't give one
        require_email = 'email' in self.hs.config.registrations_require_3pid
        require_msisdn = 'msisdn' in self.hs.config.registrations_require_3pid

        flows = []
        if self.hs.config.enable_registration_captcha:
            # only support 3PIDless registration if no 3PIDs are required
            if not require_email and not require_msisdn:
                flows.extend([[LoginType.RECAPTCHA]])
            # only support the email-only flow if we don't require MSISDN 3PIDs
            if not require_msisdn:
                flows.extend([[LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA]])

            if show_msisdn:
                # only support the MSISDN-only flow if we don't require email 3PIDs
                if not require_email:
                    flows.extend([[LoginType.MSISDN, LoginType.RECAPTCHA]])
                # always let users provide both MSISDN & email
                flows.extend([
                    [
                        LoginType.MSISDN, LoginType.EMAIL_IDENTITY,
                        LoginType.RECAPTCHA
                    ],
                ])
        else:
            # only support 3PIDless registration if no 3PIDs are required
            if not require_email and not require_msisdn:
                flows.extend([[LoginType.DUMMY]])
            # only support the email-only flow if we don't require MSISDN 3PIDs
            if not require_msisdn:
                flows.extend([[LoginType.EMAIL_IDENTITY]])

            if show_msisdn:
                # only support the MSISDN-only flow if we don't require email 3PIDs
                if not require_email or require_msisdn:
                    flows.extend([[LoginType.MSISDN]])
                # always let users provide both MSISDN & email
                flows.extend([[LoginType.MSISDN, LoginType.EMAIL_IDENTITY]])

        auth_result, params, session_id = yield self.auth_handler.check_auth(
            flows, body, self.hs.get_ip_from_request(request))

        # Check that we're not trying to register a denied 3pid.
        #
        # the user-facing checks will probably already have happened in
        # /register/email/requestToken when we requested a 3pid, but that's not
        # guaranteed.

        if auth_result:
            for login_type in [LoginType.EMAIL_IDENTITY, LoginType.MSISDN]:
                if login_type in auth_result:
                    medium = auth_result[login_type]['medium']
                    address = auth_result[login_type]['address']

                    if not check_3pid_allowed(self.hs, medium, address):
                        raise SynapseError(
                            403,
                            "Third party identifier is not allowed",
                            Codes.THREEPID_DENIED,
                        )

        if registered_user_id is not None:
            logger.info("Already registered user ID %r for this session",
                        registered_user_id)
            # don't re-register the threepids
            add_email = False
            add_msisdn = False
        else:
            # NB: This may be from the auth handler and NOT from the POST
            if 'password' not in params:
                raise SynapseError(400, "Missing password.",
                                   Codes.MISSING_PARAM)

            desired_username = params.get("username", None)
            new_password = params.get("password", None)
            guest_access_token = params.get("guest_access_token", None)

            if desired_username is not None:
                desired_username = desired_username.lower()

            (registered_user_id, _) = yield self.registration_handler.register(
                localpart=desired_username,
                password=new_password,
                guest_access_token=guest_access_token,
                generate_token=False,
            )

            # remember that we've now registered that user account, and with
            #  what user ID (since the user may not have specified)
            self.auth_handler.set_session_data(session_id,
                                               "registered_user_id",
                                               registered_user_id)

            add_email = True
            add_msisdn = True

        return_dict = yield self._create_registration_details(
            registered_user_id, params)

        if add_email and auth_result and LoginType.EMAIL_IDENTITY in auth_result:
            threepid = auth_result[LoginType.EMAIL_IDENTITY]
            yield self._register_email_threepid(registered_user_id, threepid,
                                                return_dict["access_token"],
                                                params.get("bind_email"))

        if add_msisdn and auth_result and LoginType.MSISDN in auth_result:
            threepid = auth_result[LoginType.MSISDN]
            yield self._register_msisdn_threepid(registered_user_id, threepid,
                                                 return_dict["access_token"],
                                                 params.get("bind_msisdn"))

        defer.returnValue((200, return_dict))
Esempio n. 6
0
    def on_POST(self, request):
        yield run_on_reactor()

        body = parse_json_object_from_request(request)

        kind = "user"
        if "kind" in request.args:
            kind = request.args["kind"][0]

        if kind == "guest":
            ret = yield self._do_guest_registration(body)
            defer.returnValue(ret)
            return
        elif kind != "user":
            raise UnrecognizedRequestError(
                "Do not understand membership kind: %s" % (kind,)
            )

        # we do basic sanity checks here because the auth layer will store these
        # in sessions. Pull out the username/password provided to us.
        desired_password = None
        if 'password' in body:
            if (not isinstance(body['password'], string_types) or
                    len(body['password']) > 512):
                raise SynapseError(400, "Invalid password")
            desired_password = body["password"]

        desired_username = None
        if 'username' in body:
            if (not isinstance(body['username'], string_types) or
                    len(body['username']) > 512):
                raise SynapseError(400, "Invalid username")
            desired_username = body['username']

        appservice = None
        if has_access_token(request):
            appservice = yield self.auth.get_appservice_by_req(request)

        # fork off as soon as possible for ASes and shared secret auth which
        # have completely different registration flows to normal users

        # == Application Service Registration ==
        if appservice:
            # Set the desired user according to the AS API (which uses the
            # 'user' key not 'username'). Since this is a new addition, we'll
            # fallback to 'username' if they gave one.
            desired_username = body.get("user", desired_username)

            # XXX we should check that desired_username is valid. Currently
            # we give appservices carte blanche for any insanity in mxids,
            # because the IRC bridges rely on being able to register stupid
            # IDs.

            access_token = get_access_token_from_request(request)

            if isinstance(desired_username, string_types):
                result = yield self._do_appservice_registration(
                    desired_username, access_token, body
                )
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # for either shared secret or regular registration, downcase the
        # provided username before attempting to register it. This should mean
        # that people who try to register with upper-case in their usernames
        # don't get a nasty surprise. (Note that we treat username
        # case-insenstively in login, so they are free to carry on imagining
        # that their username is CrAzYh4cKeR if that keeps them happy)
        if desired_username is not None:
            desired_username = desired_username.lower()

        # == Shared Secret Registration == (e.g. create new user scripts)
        if 'mac' in body:
            # FIXME: Should we really be determining if this is shared secret
            # auth based purely on the 'mac' key?
            result = yield self._do_shared_secret_registration(
                desired_username, desired_password, body
            )
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # == Normal User Registration == (everyone else)
        if not self.hs.config.enable_registration:
            raise SynapseError(403, "Registration has been disabled")

        guest_access_token = body.get("guest_access_token", None)

        if (
            'initial_device_display_name' in body and
            'password' not in body
        ):
            # ignore 'initial_device_display_name' if sent without
            # a password to work around a client bug where it sent
            # the 'initial_device_display_name' param alone, wiping out
            # the original registration params
            logger.warn("Ignoring initial_device_display_name without password")
            del body['initial_device_display_name']

        session_id = self.auth_handler.get_session_id(body)
        registered_user_id = None
        if session_id:
            # if we get a registered user id out of here, it means we previously
            # registered a user for this session, so we could just return the
            # user here. We carry on and go through the auth checks though,
            # for paranoia.
            registered_user_id = self.auth_handler.get_session_data(
                session_id, "registered_user_id", None
            )

        if desired_username is not None:
            yield self.registration_handler.check_username(
                desired_username,
                guest_access_token=guest_access_token,
                assigned_user_id=registered_user_id,
            )

        # Only give msisdn flows if the x_show_msisdn flag is given:
        # this is a hack to work around the fact that clients were shipped
        # that use fallback registration if they see any flows that they don't
        # recognise, which means we break registration for these clients if we
        # advertise msisdn flows. Once usage of Riot iOS <=0.3.9 and Riot
        # Android <=0.6.9 have fallen below an acceptable threshold, this
        # parameter should go away and we should always advertise msisdn flows.
        show_msisdn = False
        if 'x_show_msisdn' in body and body['x_show_msisdn']:
            show_msisdn = True

        # FIXME: need a better error than "no auth flow found" for scenarios
        # where we required 3PID for registration but the user didn't give one
        require_email = 'email' in self.hs.config.registrations_require_3pid
        require_msisdn = 'msisdn' in self.hs.config.registrations_require_3pid

        flows = []
        if self.hs.config.enable_registration_captcha:
            # only support 3PIDless registration if no 3PIDs are required
            if not require_email and not require_msisdn:
                flows.extend([[LoginType.RECAPTCHA]])
            # only support the email-only flow if we don't require MSISDN 3PIDs
            if not require_msisdn:
                flows.extend([[LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA]])

            if show_msisdn:
                # only support the MSISDN-only flow if we don't require email 3PIDs
                if not require_email:
                    flows.extend([[LoginType.MSISDN, LoginType.RECAPTCHA]])
                # always let users provide both MSISDN & email
                flows.extend([
                    [LoginType.MSISDN, LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA],
                ])
        else:
            # only support 3PIDless registration if no 3PIDs are required
            if not require_email and not require_msisdn:
                flows.extend([[LoginType.DUMMY]])
            # only support the email-only flow if we don't require MSISDN 3PIDs
            if not require_msisdn:
                flows.extend([[LoginType.EMAIL_IDENTITY]])

            if show_msisdn:
                # only support the MSISDN-only flow if we don't require email 3PIDs
                if not require_email or require_msisdn:
                    flows.extend([[LoginType.MSISDN]])
                # always let users provide both MSISDN & email
                flows.extend([
                    [LoginType.MSISDN, LoginType.EMAIL_IDENTITY]
                ])

        auth_result, params, session_id = yield self.auth_handler.check_auth(
            flows, body, self.hs.get_ip_from_request(request)
        )

        # Check that we're not trying to register a denied 3pid.
        #
        # the user-facing checks will probably already have happened in
        # /register/email/requestToken when we requested a 3pid, but that's not
        # guaranteed.

        if auth_result:
            for login_type in [LoginType.EMAIL_IDENTITY, LoginType.MSISDN]:
                if login_type in auth_result:
                    medium = auth_result[login_type]['medium']
                    address = auth_result[login_type]['address']

                    if not check_3pid_allowed(self.hs, medium, address):
                        raise SynapseError(
                            403, "Third party identifier is not allowed",
                            Codes.THREEPID_DENIED,
                        )

        if registered_user_id is not None:
            logger.info(
                "Already registered user ID %r for this session",
                registered_user_id
            )
            # don't re-register the threepids
            add_email = False
            add_msisdn = False
        else:
            # NB: This may be from the auth handler and NOT from the POST
            if 'password' not in params:
                raise SynapseError(400, "Missing password.",
                                   Codes.MISSING_PARAM)

            desired_username = params.get("username", None)
            new_password = params.get("password", None)
            guest_access_token = params.get("guest_access_token", None)

            if desired_username is not None:
                desired_username = desired_username.lower()

            (registered_user_id, _) = yield self.registration_handler.register(
                localpart=desired_username,
                password=new_password,
                guest_access_token=guest_access_token,
                generate_token=False,
            )

            # remember that we've now registered that user account, and with
            #  what user ID (since the user may not have specified)
            self.auth_handler.set_session_data(
                session_id, "registered_user_id", registered_user_id
            )

            add_email = True
            add_msisdn = True

        return_dict = yield self._create_registration_details(
            registered_user_id, params
        )

        if add_email and auth_result and LoginType.EMAIL_IDENTITY in auth_result:
            threepid = auth_result[LoginType.EMAIL_IDENTITY]
            yield self._register_email_threepid(
                registered_user_id, threepid, return_dict["access_token"],
                params.get("bind_email")
            )

        if add_msisdn and auth_result and LoginType.MSISDN in auth_result:
            threepid = auth_result[LoginType.MSISDN]
            yield self._register_msisdn_threepid(
                registered_user_id, threepid, return_dict["access_token"],
                params.get("bind_msisdn")
            )

        defer.returnValue((200, return_dict))
Esempio n. 7
0
    def on_POST(self, request):
        yield run_on_reactor()

        kind = "user"
        if "kind" in request.args:
            kind = request.args["kind"][0]

        if kind == "guest":
            ret = yield self._do_guest_registration()
            defer.returnValue(ret)
            return
        elif kind != "user":
            raise UnrecognizedRequestError(
                "Do not understand membership kind: %s" % (kind,)
            )

        body = parse_json_object_from_request(request)

        # we do basic sanity checks here because the auth layer will store these
        # in sessions. Pull out the username/password provided to us.
        desired_password = None
        if 'password' in body:
            if (not isinstance(body['password'], basestring) or
                    len(body['password']) > 512):
                raise SynapseError(400, "Invalid password")
            desired_password = body["password"]

        desired_username = None
        if 'username' in body:
            if (not isinstance(body['username'], basestring) or
                    len(body['username']) > 512):
                raise SynapseError(400, "Invalid username")
            desired_username = body['username']

        appservice = None
        if has_access_token(request):
            appservice = yield self.auth.get_appservice_by_req(request)

        # fork off as soon as possible for ASes and shared secret auth which
        # have completely different registration flows to normal users

        # == Application Service Registration ==
        if appservice:
            # Set the desired user according to the AS API (which uses the
            # 'user' key not 'username'). Since this is a new addition, we'll
            # fallback to 'username' if they gave one.
            desired_username = body.get("user", desired_username)
            access_token = get_access_token_from_request(request)

            if isinstance(desired_username, basestring):
                result = yield self._do_appservice_registration(
                    desired_username, access_token, body
                )
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # == Shared Secret Registration == (e.g. create new user scripts)
        if 'mac' in body:
            # FIXME: Should we really be determining if this is shared secret
            # auth based purely on the 'mac' key?
            result = yield self._do_shared_secret_registration(
                desired_username, desired_password, body
            )
            defer.returnValue((200, result))  # we throw for non 200 responses
            return

        # == Normal User Registration == (everyone else)
        if not self.hs.config.enable_registration:
            raise SynapseError(403, "Registration has been disabled")

        guest_access_token = body.get("guest_access_token", None)

        session_id = self.auth_handler.get_session_id(body)
        registered_user_id = None
        if session_id:
            # if we get a registered user id out of here, it means we previously
            # registered a user for this session, so we could just return the
            # user here. We carry on and go through the auth checks though,
            # for paranoia.
            registered_user_id = self.auth_handler.get_session_data(
                session_id, "registered_user_id", None
            )

        if desired_username is not None:
            yield self.registration_handler.check_username(
                desired_username,
                guest_access_token=guest_access_token,
                assigned_user_id=registered_user_id,
            )

        if self.hs.config.enable_registration_captcha:
            flows = [
                [LoginType.RECAPTCHA],
                [LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA]
            ]
        else:
            flows = [
                [LoginType.DUMMY],
                [LoginType.EMAIL_IDENTITY]
            ]

        authed, auth_result, params, session_id = yield self.auth_handler.check_auth(
            flows, body, self.hs.get_ip_from_request(request)
        )

        if not authed:
            defer.returnValue((401, auth_result))
            return

        if registered_user_id is not None:
            logger.info(
                "Already registered user ID %r for this session",
                registered_user_id
            )
            # don't re-register the email address
            add_email = False
        else:
            # NB: This may be from the auth handler and NOT from the POST
            if 'password' not in params:
                raise SynapseError(400, "Missing password.",
                                   Codes.MISSING_PARAM)

            desired_username = params.get("username", None)
            new_password = params.get("password", None)
            guest_access_token = params.get("guest_access_token", None)

            (registered_user_id, _) = yield self.registration_handler.register(
                localpart=desired_username,
                password=new_password,
                guest_access_token=guest_access_token,
                generate_token=False,
            )

            # remember that we've now registered that user account, and with
            #  what user ID (since the user may not have specified)
            self.auth_handler.set_session_data(
                session_id, "registered_user_id", registered_user_id
            )

            add_email = True

        return_dict = yield self._create_registration_details(
            registered_user_id, params
        )

        if add_email and auth_result and LoginType.EMAIL_IDENTITY in auth_result:
            threepid = auth_result[LoginType.EMAIL_IDENTITY]
            yield self._register_email_threepid(
                registered_user_id, threepid, return_dict["access_token"],
                params.get("bind_email")
            )

        defer.returnValue((200, return_dict))