diff options
| -rw-r--r-- | synapse/rest/client/v1/admin.py | 47 | ||||
| -rw-r--r-- | synapse/rest/client/v1/directory.py | 11 | ||||
| -rw-r--r-- | synapse/rest/client/v1/initial_sync.py | 3 | ||||
| -rw-r--r-- | synapse/rest/client/v1/push_rule.py | 6 | ||||
| -rw-r--r-- | synapse/rest/client/v1/pusher.py | 17 | ||||
| -rw-r--r-- | synapse/rest/client/v1/register.py | 24 | ||||
| -rw-r--r-- | synapse/rest/client/v1/room.py | 10 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/account.py | 40 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/devices.py | 26 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/register.py | 17 | ||||
| -rw-r--r-- | synapse/rest/media/v1/identicon_resource.py | 6 | ||||
| -rw-r--r-- | synapse/rest/media/v1/preview_url_resource.py | 5 | ||||
| -rw-r--r-- | synapse/rest/media/v1/upload_resource.py | 5 | ||||
| -rw-r--r-- | synapse/streams/config.py | 29 |
14 files changed, 91 insertions, 155 deletions
diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py index 2b091d61a5..6b3c496418 100644 --- a/synapse/rest/client/v1/admin.py +++ b/synapse/rest/client/v1/admin.py @@ -22,7 +22,12 @@ from twisted.internet import defer from synapse.api.constants import Membership from synapse.api.errors import AuthError, Codes, NotFoundError, SynapseError -from synapse.http.servlet import parse_json_object_from_request +from synapse.http.servlet import ( + assert_params_in_request, + parse_json_object_from_request, + parse_integer, + parse_string +) from synapse.types import UserID, create_requester from .base import ClientV1RestServlet, client_path_patterns @@ -98,16 +103,8 @@ class PurgeMediaCacheRestServlet(ClientV1RestServlet): if not is_admin: raise AuthError(403, "You are not a server admin") - before_ts = request.args.get("before_ts", None) - if not before_ts: - raise SynapseError(400, "Missing 'before_ts' arg") - - logger.info("before_ts: %r", before_ts[0]) - - try: - before_ts = int(before_ts[0]) - except Exception: - raise SynapseError(400, "Invalid 'before_ts' arg") + before_ts = parse_integer(request, "before_ts", required=True) + logger.info("before_ts: %r", before_ts) ret = yield self.media_repository.delete_old_remote_media(before_ts) @@ -300,10 +297,8 @@ class ShutdownRoomRestServlet(ClientV1RestServlet): raise AuthError(403, "You are not a server admin") content = parse_json_object_from_request(request) - - new_room_user_id = content.get("new_room_user_id") - if not new_room_user_id: - raise SynapseError(400, "Please provide field `new_room_user_id`") + assert_params_in_request(content, ["new_room_user_id"]) + new_room_user_id = content["new_room_user_id"] room_creator_requester = create_requester(new_room_user_id) @@ -464,9 +459,8 @@ class ResetPasswordRestServlet(ClientV1RestServlet): raise AuthError(403, "You are not a server admin") params = parse_json_object_from_request(request) + assert_params_in_request(params, ["new_password"]) new_password = params['new_password'] - if not new_password: - raise SynapseError(400, "Missing 'new_password' arg") logger.info("new_password: %r", new_password) @@ -514,12 +508,9 @@ class GetUsersPaginatedRestServlet(ClientV1RestServlet): raise SynapseError(400, "Can only users a local user") order = "name" # order by name in user table - start = request.args.get("start")[0] - limit = request.args.get("limit")[0] - if not limit: - raise SynapseError(400, "Missing 'limit' arg") - if not start: - raise SynapseError(400, "Missing 'start' arg") + start = parse_integer(request, "start", required=True) + limit = parse_integer(request, "limit", required=True) + logger.info("limit: %s, start: %s", limit, start) ret = yield self.handlers.admin_handler.get_users_paginate( @@ -551,12 +542,9 @@ class GetUsersPaginatedRestServlet(ClientV1RestServlet): order = "name" # order by name in user table params = parse_json_object_from_request(request) + assert_params_in_request(params, ["limit", "start"]) limit = params['limit'] start = params['start'] - if not limit: - raise SynapseError(400, "Missing 'limit' arg") - if not start: - raise SynapseError(400, "Missing 'start' arg") logger.info("limit: %s, start: %s", limit, start) ret = yield self.handlers.admin_handler.get_users_paginate( @@ -604,10 +592,7 @@ class SearchUsersRestServlet(ClientV1RestServlet): if not self.hs.is_mine(target_user): raise SynapseError(400, "Can only users a local user") - term = request.args.get("term")[0] - if not term: - raise SynapseError(400, "Missing 'term' arg") - + term = parse_string(request, "term", required=True) logger.info("term: %s ", term) ret = yield self.handlers.admin_handler.search_users( diff --git a/synapse/rest/client/v1/directory.py b/synapse/rest/client/v1/directory.py index 4fdbb83815..3003cde94e 100644 --- a/synapse/rest/client/v1/directory.py +++ b/synapse/rest/client/v1/directory.py @@ -18,8 +18,8 @@ import logging from twisted.internet import defer -from synapse.api.errors import AuthError, Codes, SynapseError -from synapse.http.servlet import parse_json_object_from_request +from synapse.api.errors import AuthError, SynapseError +from synapse.http.servlet import assert_params_in_request, parse_json_object_from_request from synapse.types import RoomAlias from .base import ClientV1RestServlet, client_path_patterns @@ -52,15 +52,14 @@ class ClientDirectoryServer(ClientV1RestServlet): @defer.inlineCallbacks def on_PUT(self, request, room_alias): + room_alias = RoomAlias.from_string(room_alias) + content = parse_json_object_from_request(request) if "room_id" not in content: - raise SynapseError(400, "Missing room_id key", + raise SynapseError(400, 'Missing params: ["room_id"]', errcode=Codes.BAD_JSON) logger.debug("Got content: %s", content) - - room_alias = RoomAlias.from_string(room_alias) - logger.debug("Got room name: %s", room_alias.to_string()) room_id = content["room_id"] diff --git a/synapse/rest/client/v1/initial_sync.py b/synapse/rest/client/v1/initial_sync.py index fbe8cb2023..00a1a99feb 100644 --- a/synapse/rest/client/v1/initial_sync.py +++ b/synapse/rest/client/v1/initial_sync.py @@ -16,6 +16,7 @@ from twisted.internet import defer from synapse.streams.config import PaginationConfig +from synapse.http.servlet import parse_boolean from .base import ClientV1RestServlet, client_path_patterns @@ -33,7 +34,7 @@ class InitialSyncRestServlet(ClientV1RestServlet): requester = yield self.auth.get_user_by_req(request) as_client_event = "raw" not in request.args pagination_config = PaginationConfig.from_request(request) - include_archived = request.args.get("archived", None) == ["true"] + include_archived = parse_boolean(request, "archived", default=False) content = yield self.initial_sync_handler.snapshot_all_rooms( user_id=requester.user.to_string(), pagin_config=pagination_config, diff --git a/synapse/rest/client/v1/push_rule.py b/synapse/rest/client/v1/push_rule.py index 0df7ce570f..7cf6a99774 100644 --- a/synapse/rest/client/v1/push_rule.py +++ b/synapse/rest/client/v1/push_rule.py @@ -21,7 +21,7 @@ from synapse.api.errors import ( SynapseError, UnrecognizedRequestError, ) -from synapse.http.servlet import parse_json_value_from_request +from synapse.http.servlet import parse_json_value_from_request, parse_string from synapse.push.baserules import BASE_RULE_IDS from synapse.push.clientformat import format_push_rules_for_user from synapse.push.rulekinds import PRIORITY_CLASS_MAP @@ -75,11 +75,11 @@ class PushRuleRestServlet(ClientV1RestServlet): except InvalidRuleException as e: raise SynapseError(400, e.message) - before = request.args.get("before", None) + before = parse_string(request, "before") if before: before = _namespaced_rule_id(spec, before[0]) - after = request.args.get("after", None) + after = parse_string(request, "after") if after: after = _namespaced_rule_id(spec, after[0]) diff --git a/synapse/rest/client/v1/pusher.py b/synapse/rest/client/v1/pusher.py index 1581f88db5..95b9252b61 100644 --- a/synapse/rest/client/v1/pusher.py +++ b/synapse/rest/client/v1/pusher.py @@ -21,6 +21,7 @@ from synapse.api.errors import Codes, StoreError, SynapseError from synapse.http.server import finish_request from synapse.http.servlet import ( RestServlet, + assert_params_in_request, parse_json_object_from_request, parse_string, ) @@ -91,15 +92,11 @@ class PushersSetRestServlet(ClientV1RestServlet): ) defer.returnValue((200, {})) - reqd = ['kind', 'app_id', 'app_display_name', - 'device_display_name', 'pushkey', 'lang', 'data'] - missing = [] - for i in reqd: - if i not in content: - missing.append(i) - if len(missing): - raise SynapseError(400, "Missing parameters: " + ','.join(missing), - errcode=Codes.MISSING_PARAM) + assert_params_in_request( + content, + ['kind', 'app_id', 'app_display_name', + 'device_display_name', 'pushkey', 'lang', 'data'] + ) logger.debug("set pushkey %s to kind %s", content['pushkey'], content['kind']) logger.debug("Got pushers request with body: %r", content) @@ -148,7 +145,7 @@ class PushersRemoveRestServlet(RestServlet): SUCCESS_HTML = "<html><body>You have been unsubscribed</body><html>" def __init__(self, hs): - super(RestServlet, self).__init__() + super(PushersRemoveRestServlet, self).__init__() self.hs = hs self.notifier = hs.get_notifier() self.auth = hs.get_auth() diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py index 3ce5f8b726..744ed04455 100644 --- a/synapse/rest/client/v1/register.py +++ b/synapse/rest/client/v1/register.py @@ -18,15 +18,13 @@ import hmac import logging from hashlib import sha1 -from six import string_types - from twisted.internet import defer import synapse.util.stringutils as stringutils from synapse.api.auth import get_access_token_from_request from synapse.api.constants import LoginType from synapse.api.errors import Codes, SynapseError -from synapse.http.servlet import parse_json_object_from_request +from synapse.http.servlet import assert_params_in_request, parse_json_object_from_request from synapse.types import create_requester from .base import ClientV1RestServlet, client_path_patterns @@ -124,8 +122,7 @@ class RegisterRestServlet(ClientV1RestServlet): session = (register_json["session"] if "session" in register_json else None) login_type = None - if "type" not in register_json: - raise SynapseError(400, "Missing 'type' key.") + assert_params_in_request(register_json, ["type"]) try: login_type = register_json["type"] @@ -312,9 +309,7 @@ class RegisterRestServlet(ClientV1RestServlet): def _do_app_service(self, request, register_json, session): as_token = get_access_token_from_request(request) - if "user" not in register_json: - raise SynapseError(400, "Expected 'user' key.") - + assert_params_in_request(register_json, ["user"]) user_localpart = register_json["user"].encode("utf-8") handler = self.handlers.registration_handler @@ -331,12 +326,7 @@ class RegisterRestServlet(ClientV1RestServlet): @defer.inlineCallbacks def _do_shared_secret(self, request, register_json, session): - if not isinstance(register_json.get("mac", None), string_types): - raise SynapseError(400, "Expected mac.") - if not isinstance(register_json.get("user", None), string_types): - raise SynapseError(400, "Expected 'user' key.") - if not isinstance(register_json.get("password", None), string_types): - raise SynapseError(400, "Expected 'password' key.") + assert_params_in_request(register_json, ["mac", "user", "password"]) if not self.hs.config.registration_shared_secret: raise SynapseError(400, "Shared secret registration is not enabled") @@ -419,11 +409,7 @@ class CreateUserRestServlet(ClientV1RestServlet): @defer.inlineCallbacks def _do_create(self, requester, user_json): - if "localpart" not in user_json: - raise SynapseError(400, "Expected 'localpart' key.") - - if "displayname" not in user_json: - raise SynapseError(400, "Expected 'displayname' key.") + assert_params_in_request(user_json, ["localpart", "displayname"]) localpart = user_json["localpart"].encode("utf-8") displayname = user_json["displayname"].encode("utf-8") diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py index 2470db52ba..3050d040a2 100644 --- a/synapse/rest/client/v1/room.py +++ b/synapse/rest/client/v1/room.py @@ -28,6 +28,7 @@ from synapse.api.errors import AuthError, Codes, SynapseError from synapse.api.filtering import Filter from synapse.events.utils import format_event_for_client_v2, serialize_event from synapse.http.servlet import ( + assert_params_in_request, parse_integer, parse_json_object_from_request, parse_string, @@ -435,7 +436,7 @@ class RoomMessageListRestServlet(ClientV1RestServlet): request, default_limit=10, ) as_client_event = "raw" not in request.args - filter_bytes = request.args.get("filter", None) + filter_bytes = parse_string(request, "filter") if filter_bytes: filter_json = urlparse.unquote(filter_bytes[-1]).decode("UTF-8") event_filter = Filter(json.loads(filter_json)) @@ -530,7 +531,7 @@ class RoomEventContextServlet(ClientV1RestServlet): def on_GET(self, request, room_id, event_id): requester = yield self.auth.get_user_by_req(request, allow_guest=True) - limit = int(request.args.get("limit", [10])[0]) + limit = parse_integer(request, "limit", default=10) results = yield self.handlers.room_context_handler.get_event_context( requester.user, @@ -636,8 +637,7 @@ class RoomMembershipRestServlet(ClientV1RestServlet): target = requester.user if membership_action in ["invite", "ban", "unban", "kick"]: - if "user_id" not in content: - raise SynapseError(400, "Missing user_id key.") + assert_params_in_request(content, ["user_id"]) target = UserID.from_string(content["user_id"]) event_content = None @@ -764,7 +764,7 @@ class SearchRestServlet(ClientV1RestServlet): content = parse_json_object_from_request(request) - batch = request.args.get("next_batch", [None])[0] + batch = parse_string(request, "next_batch") results = yield self.handlers.search_handler.search( requester.user, content, diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py index 528c1f43f9..2952472a4a 100644 --- a/synapse/rest/client/v2_alpha/account.py +++ b/synapse/rest/client/v2_alpha/account.py @@ -160,11 +160,10 @@ class PasswordRestServlet(RestServlet): 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()) + logger.error("Auth succeeded but no known type! %r", result.keys()) raise SynapseError(500, "", Codes.UNKNOWN) - if 'new_password' not in params: - raise SynapseError(400, "", Codes.MISSING_PARAM) + assert_params_in_request(params, ["new_password"]) new_password = params['new_password'] yield self._set_password_handler.set_password( @@ -229,15 +228,10 @@ class EmailThreepidRequestTokenRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) - - required = ['id_server', 'client_secret', 'email', 'send_attempt'] - absent = [] - for k in required: - if k not in body: - absent.append(k) - - if absent: - raise SynapseError(400, "Missing params: %r" % absent, Codes.MISSING_PARAM) + assert_params_in_request( + body, + ['id_server', 'client_secret', 'email', 'send_attempt'], + ) if not check_3pid_allowed(self.hs, "email", body['email']): raise SynapseError( @@ -267,18 +261,10 @@ class MsisdnThreepidRequestTokenRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) - - required = [ + assert_params_in_request(body, [ 'id_server', 'client_secret', 'country', 'phone_number', 'send_attempt', - ] - absent = [] - for k in required: - if k not in body: - absent.append(k) - - if absent: - raise SynapseError(400, "Missing params: %r" % absent, Codes.MISSING_PARAM) + ]) msisdn = phone_number_to_msisdn(body['country'], body['phone_number']) @@ -373,15 +359,7 @@ class ThreepidDeleteRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request): body = parse_json_object_from_request(request) - - required = ['medium', 'address'] - absent = [] - for k in required: - if k not in body: - absent.append(k) - - if absent: - raise SynapseError(400, "Missing params: %r" % absent, Codes.MISSING_PARAM) + assert_params_in_request(body, ['medium', 'address']) requester = yield self.auth.get_user_by_req(request) user_id = requester.user.to_string() diff --git a/synapse/rest/client/v2_alpha/devices.py b/synapse/rest/client/v2_alpha/devices.py index 09f6a8efe3..e346ad4ed6 100644 --- a/synapse/rest/client/v2_alpha/devices.py +++ b/synapse/rest/client/v2_alpha/devices.py @@ -18,14 +18,18 @@ import logging from twisted.internet import defer from synapse.api import errors -from synapse.http import servlet +from synapse.http.servlet import ( + assert_params_in_request, + parse_json_object_from_request, + RestServlet +) from ._base import client_v2_patterns, interactive_auth_handler logger = logging.getLogger(__name__) -class DevicesRestServlet(servlet.RestServlet): +class DevicesRestServlet(RestServlet): PATTERNS = client_v2_patterns("/devices$", v2_alpha=False) def __init__(self, hs): @@ -47,7 +51,7 @@ class DevicesRestServlet(servlet.RestServlet): defer.returnValue((200, {"devices": devices})) -class DeleteDevicesRestServlet(servlet.RestServlet): +class DeleteDevicesRestServlet(RestServlet): """ API for bulk deletion of devices. Accepts a JSON object with a devices key which lists the device_ids to delete. Requires user interactive auth. @@ -67,19 +71,17 @@ class DeleteDevicesRestServlet(servlet.RestServlet): requester = yield self.auth.get_user_by_req(request) try: - body = servlet.parse_json_object_from_request(request) + body = parse_json_object_from_request(request) except errors.SynapseError as e: if e.errcode == errors.Codes.NOT_JSON: - # deal with older clients which didn't pass a J*DELETESON dict + # DELETE + # deal with older clients which didn't pass a JSON dict # the same as those that pass an empty dict body = {} else: raise e - if 'devices' not in body: - raise errors.SynapseError( - 400, "No devices supplied", errcode=errors.Codes.MISSING_PARAM - ) + assert_params_in_request(body, ["devices"]) yield self.auth_handler.validate_user_via_ui_auth( requester, body, self.hs.get_ip_from_request(request), @@ -92,7 +94,7 @@ class DeleteDevicesRestServlet(servlet.RestServlet): defer.returnValue((200, {})) -class DeviceRestServlet(servlet.RestServlet): +class DeviceRestServlet(RestServlet): PATTERNS = client_v2_patterns("/devices/(?P<device_id>[^/]*)$", v2_alpha=False) def __init__(self, hs): @@ -121,7 +123,7 @@ class DeviceRestServlet(servlet.RestServlet): requester = yield self.auth.get_user_by_req(request) try: - body = servlet.parse_json_object_from_request(request) + body = parse_json_object_from_request(request) except errors.SynapseError as e: if e.errcode == errors.Codes.NOT_JSON: @@ -144,7 +146,7 @@ class DeviceRestServlet(servlet.RestServlet): def on_PUT(self, request, device_id): requester = yield self.auth.get_user_by_req(request, allow_guest=True) - body = servlet.parse_json_object_from_request(request) + body = parse_json_object_from_request(request) yield self.device_handler.update_device( requester.user.to_string(), device_id, diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py index 896650d5a5..e2023e3a61 100644 --- a/synapse/rest/client/v2_alpha/register.py +++ b/synapse/rest/client/v2_alpha/register.py @@ -387,9 +387,7 @@ class RegisterRestServlet(RestServlet): 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) + assert_params_in_request(params, ["password"]) desired_username = params.get("username", None) new_password = params.get("password", None) @@ -566,11 +564,14 @@ class RegisterRestServlet(RestServlet): Returns: defer.Deferred: """ - reqd = ('medium', 'address', 'validated_at') - if any(x not in threepid for x in reqd): - # This will only happen if the ID server returns a malformed response - logger.info("Can't add incomplete 3pid") - defer.returnValue() + try: + assert_params_in_request(threepid, ['medium', 'address', 'validated_at']) + except SynapseError as ex: + if ex.errcode == Codes.MISSING_PARAM: + # This will only happen if the ID server returns a malformed response + logger.info("Can't add incomplete 3pid") + defer.returnValue(None) + raise yield self.auth_handler.add_threepid( user_id, diff --git a/synapse/rest/media/v1/identicon_resource.py b/synapse/rest/media/v1/identicon_resource.py index a2e391415f..b3217eff53 100644 --- a/synapse/rest/media/v1/identicon_resource.py +++ b/synapse/rest/media/v1/identicon_resource.py @@ -14,6 +14,8 @@ from pydenticon import Generator +from synapse.http.servlet import parse_integer + from twisted.web.resource import Resource FOREGROUND = [ @@ -56,8 +58,8 @@ class IdenticonResource(Resource): def render_GET(self, request): name = "/".join(request.postpath) - width = int(request.args.get("width", [96])[0]) - height = int(request.args.get("height", [96])[0]) + width = parse_integer(request, "width", default=96) + height = parse_integer(request, "height", default=96) identicon_bytes = self.generate_identicon(name, width, height) request.setHeader(b"Content-Type", b"image/png") request.setHeader( diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py index 4e3a18ce08..b70b15c4c2 100644 --- a/synapse/rest/media/v1/preview_url_resource.py +++ b/synapse/rest/media/v1/preview_url_resource.py @@ -40,6 +40,7 @@ from synapse.http.server import ( respond_with_json_bytes, wrap_json_request_handler, ) +from synapse.http.servlet import parse_integer, parse_string from synapse.util.async import ObservableDeferred from synapse.util.caches.expiringcache import ExpiringCache from synapse.util.logcontext import make_deferred_yieldable, run_in_background @@ -96,9 +97,9 @@ class PreviewUrlResource(Resource): # XXX: if get_user_by_req fails, what should we do in an async render? requester = yield self.auth.get_user_by_req(request) - url = request.args.get("url")[0] + url = parse_string(request, "url") if "ts" in request.args: - ts = int(request.args.get("ts")[0]) + ts = parse_integer(request, "ts") else: ts = self.clock.time_msec() diff --git a/synapse/rest/media/v1/upload_resource.py b/synapse/rest/media/v1/upload_resource.py index 1a98120e1d..9b22d204a6 100644 --- a/synapse/rest/media/v1/upload_resource.py +++ b/synapse/rest/media/v1/upload_resource.py @@ -21,6 +21,7 @@ from twisted.web.server import NOT_DONE_YET from synapse.api.errors import SynapseError from synapse.http.server import respond_with_json, wrap_json_request_handler +from synapse.http.servlet import parse_string logger = logging.getLogger(__name__) @@ -65,10 +66,10 @@ class UploadResource(Resource): code=413, ) - upload_name = request.args.get("filename", None) + upload_name = parse_string(request, "filename") if upload_name: try: - upload_name = upload_name[0].decode('UTF-8') + upload_name = upload_name.decode('UTF-8') except UnicodeDecodeError: raise SynapseError( msg="Invalid UTF-8 filename parameter: %r" % (upload_name), diff --git a/synapse/streams/config.py b/synapse/streams/config.py index 46ccbbda7d..22b0b830f7 100644 --- a/synapse/streams/config.py +++ b/synapse/streams/config.py @@ -16,6 +16,7 @@ import logging from synapse.api.errors import SynapseError +from synapse.http.servlet import parse_integer, parse_string from synapse.types import StreamToken logger = logging.getLogger(__name__) @@ -56,23 +57,10 @@ class PaginationConfig(object): @classmethod def from_request(cls, request, raise_invalid_params=True, default_limit=None): - def get_param(name, default=None): - lst = request.args.get(name, []) - if len(lst) > 1: - raise SynapseError( - 400, "%s must be specified only once" % (name,) - ) - elif len(lst) == 1: - return lst[0] - else: - return default - - direction = get_param("dir", 'f') - if direction not in ['f', 'b']: - raise SynapseError(400, "'dir' parameter is invalid.") - - from_tok = get_param("from") - to_tok = get_param("to") + direction = parse_string(request, "dir", default='f', allowed_values=['f', 'b']) + + from_tok = parse_string(request, "from") + to_tok = parse_string(request, "to") try: if from_tok == "END": @@ -88,12 +76,7 @@ class PaginationConfig(object): except Exception: raise SynapseError(400, "'to' paramater is invalid") - limit = get_param("limit", None) - if limit is not None and not limit.isdigit(): - raise SynapseError(400, "'limit' parameter must be an integer.") - - if limit is None: - limit = default_limit + limit = parse_integer(request, "limit", default=default_limit) try: return PaginationConfig(from_tok, to_tok, direction, limit) |