From e9c1cabac26cf8e28152ebdb3caf29d4457eea0e Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 11 Mar 2016 16:41:03 +0000 Subject: [PATCH] Use parse_json_object_from_request to parse JSON out of request bodies --- synapse/federation/transport/server.py | 4 ++-- synapse/http/servlet.py | 17 ++++++++++----- synapse/rest/client/v1/presence.py | 13 +++++------- synapse/rest/client/v1/profile.py | 8 +++---- synapse/rest/client/v1/room.py | 14 ++++--------- synapse/rest/client/v2_alpha/account_data.py | 21 ++++--------------- synapse/rest/client/v2_alpha/filter.py | 10 ++------- synapse/rest/client/v2_alpha/keys.py | 22 +++++++------------- synapse/rest/client/v2_alpha/tags.py | 12 +++-------- synapse/rest/key/v2/remote_key_resource.py | 12 ++--------- tests/rest/client/v1/test_profile.py | 6 ++++-- 11 files changed, 49 insertions(+), 90 deletions(-) diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py index 6e92e2f8f..208bff8d4 100644 --- a/synapse/federation/transport/server.py +++ b/synapse/federation/transport/server.py @@ -18,6 +18,7 @@ from twisted.internet import defer from synapse.api.urls import FEDERATION_PREFIX as PREFIX from synapse.api.errors import Codes, SynapseError from synapse.http.server import JsonResource +from synapse.http.servlet import parse_json_object_from_request from synapse.util.ratelimitutils import FederationRateLimiter import functools @@ -419,8 +420,7 @@ class On3pidBindServlet(BaseFederationServlet): @defer.inlineCallbacks def on_POST(self, request): - content_bytes = request.content.read() - content = json.loads(content_bytes) + content = parse_json_object_from_request(request) if "invites" in content: last_exception = None for invite in content["invites"]: diff --git a/synapse/http/servlet.py b/synapse/http/servlet.py index 41c519c00..1996f8b13 100644 --- a/synapse/http/servlet.py +++ b/synapse/http/servlet.py @@ -128,14 +128,21 @@ def parse_json_object_from_request(request): if it wasn't a JSON object. """ try: - content = simplejson.loads(request.content.read()) - if type(content) != dict: - message = "Content must be a JSON object." - raise SynapseError(400, message, errcode=Codes.BAD_JSON) - return content + content_bytes = request.content.read() + except: + raise SynapseError(400, "Error reading JSON content.") + + try: + content = simplejson.loads(content_bytes) except simplejson.JSONDecodeError: raise SynapseError(400, "Content not JSON.", errcode=Codes.NOT_JSON) + if type(content) != dict: + message = "Content must be a JSON object." + raise SynapseError(400, message, errcode=Codes.BAD_JSON) + + return content + class RestServlet(object): diff --git a/synapse/rest/client/v1/presence.py b/synapse/rest/client/v1/presence.py index bbfa1d6ac..27d9ed586 100644 --- a/synapse/rest/client/v1/presence.py +++ b/synapse/rest/client/v1/presence.py @@ -19,9 +19,9 @@ from twisted.internet import defer from synapse.api.errors import SynapseError, AuthError from synapse.types import UserID +from synapse.http.servlet import parse_json_object_from_request from .base import ClientV1RestServlet, client_path_patterns -import simplejson as json import logging logger = logging.getLogger(__name__) @@ -56,9 +56,10 @@ class PresenceStatusRestServlet(ClientV1RestServlet): raise AuthError(403, "Can only set your own presence state") state = {} - try: - content = json.loads(request.content.read()) + content = parse_json_object_from_request(request) + + try: state["presence"] = content.pop("presence") if "status_msg" in content: @@ -113,11 +114,7 @@ class PresenceListRestServlet(ClientV1RestServlet): raise SynapseError( 400, "Cannot modify another user's presence list") - try: - content = json.loads(request.content.read()) - except: - logger.exception("JSON parse error") - raise SynapseError(400, "Unable to parse content") + content = parse_json_object_from_request(request) if "invite" in content: for u in content["invite"]: diff --git a/synapse/rest/client/v1/profile.py b/synapse/rest/client/v1/profile.py index 953764bd8..65c4e2ebe 100644 --- a/synapse/rest/client/v1/profile.py +++ b/synapse/rest/client/v1/profile.py @@ -18,8 +18,7 @@ from twisted.internet import defer from .base import ClientV1RestServlet, client_path_patterns from synapse.types import UserID - -import simplejson as json +from synapse.http.servlet import parse_json_object_from_request class ProfileDisplaynameRestServlet(ClientV1RestServlet): @@ -44,8 +43,9 @@ class ProfileDisplaynameRestServlet(ClientV1RestServlet): requester = yield self.auth.get_user_by_req(request, allow_guest=True) user = UserID.from_string(user_id) + content = parse_json_object_from_request(request) + try: - content = json.loads(request.content.read()) new_name = content["displayname"] except: defer.returnValue((400, "Unable to parse name")) @@ -81,8 +81,8 @@ class ProfileAvatarURLRestServlet(ClientV1RestServlet): requester = yield self.auth.get_user_by_req(request) user = UserID.from_string(user_id) + content = parse_json_object_from_request(request) try: - content = json.loads(request.content.read()) new_name = content["avatar_url"] except: defer.returnValue((400, "Unable to parse name")) diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py index 7a9f3d11b..a1fa7daf7 100644 --- a/synapse/rest/client/v1/room.py +++ b/synapse/rest/client/v1/room.py @@ -24,7 +24,6 @@ from synapse.types import UserID, RoomID, RoomAlias from synapse.events.utils import serialize_event from synapse.http.servlet import parse_json_object_from_request -import simplejson as json import logging import urllib @@ -72,15 +71,10 @@ class RoomCreateRestServlet(ClientV1RestServlet): defer.returnValue((200, info)) def get_room_config(self, request): - try: - user_supplied_config = json.loads(request.content.read()) - if "visibility" not in user_supplied_config: - # default visibility - user_supplied_config["visibility"] = "public" - return user_supplied_config - except (ValueError, TypeError): - raise SynapseError(400, "Body must be JSON.", - errcode=Codes.BAD_JSON) + user_supplied_config = parse_json_object_from_request(request) + # default visibility + user_supplied_config.setdefault("visibility", "public") + return user_supplied_config def on_OPTIONS(self, request): return (200, {}) diff --git a/synapse/rest/client/v2_alpha/account_data.py b/synapse/rest/client/v2_alpha/account_data.py index 1456881c1..b16079cec 100644 --- a/synapse/rest/client/v2_alpha/account_data.py +++ b/synapse/rest/client/v2_alpha/account_data.py @@ -15,15 +15,13 @@ from ._base import client_v2_patterns -from synapse.http.servlet import RestServlet -from synapse.api.errors import AuthError, SynapseError +from synapse.http.servlet import RestServlet, parse_json_object_from_request +from synapse.api.errors import AuthError from twisted.internet import defer import logging -import simplejson as json - logger = logging.getLogger(__name__) @@ -47,11 +45,7 @@ class AccountDataServlet(RestServlet): if user_id != requester.user.to_string(): raise AuthError(403, "Cannot add account data for other users.") - try: - content_bytes = request.content.read() - body = json.loads(content_bytes) - except: - raise SynapseError(400, "Invalid JSON") + body = parse_json_object_from_request(request) max_id = yield self.store.add_account_data_for_user( user_id, account_data_type, body @@ -86,14 +80,7 @@ class RoomAccountDataServlet(RestServlet): if user_id != requester.user.to_string(): raise AuthError(403, "Cannot add account data for other users.") - try: - content_bytes = request.content.read() - body = json.loads(content_bytes) - except: - raise SynapseError(400, "Invalid JSON") - - if not isinstance(body, dict): - raise ValueError("Expected a JSON object") + body = parse_json_object_from_request(request) max_id = yield self.store.add_account_data_to_room( user_id, room_id, account_data_type, body diff --git a/synapse/rest/client/v2_alpha/filter.py b/synapse/rest/client/v2_alpha/filter.py index 7c94f6ec4..510f8b2c7 100644 --- a/synapse/rest/client/v2_alpha/filter.py +++ b/synapse/rest/client/v2_alpha/filter.py @@ -16,12 +16,11 @@ from twisted.internet import defer from synapse.api.errors import AuthError, SynapseError -from synapse.http.servlet import RestServlet +from synapse.http.servlet import RestServlet, parse_json_object_from_request from synapse.types import UserID from ._base import client_v2_patterns -import simplejson as json import logging @@ -84,12 +83,7 @@ class CreateFilterRestServlet(RestServlet): if not self.hs.is_mine(target_user): raise SynapseError(400, "Can only create filters for local users") - try: - content = json.loads(request.content.read()) - - # TODO(paul): check for required keys and invalid keys - except: - raise SynapseError(400, "Invalid filter definition") + content = parse_json_object_from_request(request) filter_id = yield self.filtering.add_user_filter( user_localpart=target_user.localpart, diff --git a/synapse/rest/client/v2_alpha/keys.py b/synapse/rest/client/v2_alpha/keys.py index f989b0861..89ab39491 100644 --- a/synapse/rest/client/v2_alpha/keys.py +++ b/synapse/rest/client/v2_alpha/keys.py @@ -15,16 +15,15 @@ from twisted.internet import defer -from synapse.api.errors import SynapseError -from synapse.http.servlet import RestServlet +from synapse.http.servlet import RestServlet, parse_json_object_from_request from synapse.types import UserID from canonicaljson import encode_canonical_json from ._base import client_v2_patterns -import simplejson as json import logging +import simplejson as json logger = logging.getLogger(__name__) @@ -68,10 +67,9 @@ class KeyUploadServlet(RestServlet): user_id = requester.user.to_string() # TODO: Check that the device_id matches that in the authentication # or derive the device_id from the authentication instead. - try: - body = json.loads(request.content.read()) - except: - raise SynapseError(400, "Invalid key JSON") + + body = parse_json_object_from_request(request) + time_now = self.clock.time_msec() # TODO: Validate the JSON to make sure it has the right keys. @@ -173,10 +171,7 @@ class KeyQueryServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, user_id, device_id): yield self.auth.get_user_by_req(request) - try: - body = json.loads(request.content.read()) - except: - raise SynapseError(400, "Invalid key JSON") + body = parse_json_object_from_request(request) result = yield self.handle_request(body) defer.returnValue(result) @@ -272,10 +267,7 @@ class OneTimeKeyServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, user_id, device_id, algorithm): yield self.auth.get_user_by_req(request) - try: - body = json.loads(request.content.read()) - except: - raise SynapseError(400, "Invalid key JSON") + body = parse_json_object_from_request(request) result = yield self.handle_request(body) defer.returnValue(result) diff --git a/synapse/rest/client/v2_alpha/tags.py b/synapse/rest/client/v2_alpha/tags.py index 79c436a8c..dac8603b0 100644 --- a/synapse/rest/client/v2_alpha/tags.py +++ b/synapse/rest/client/v2_alpha/tags.py @@ -15,15 +15,13 @@ from ._base import client_v2_patterns -from synapse.http.servlet import RestServlet -from synapse.api.errors import AuthError, SynapseError +from synapse.http.servlet import RestServlet, parse_json_object_from_request +from synapse.api.errors import AuthError from twisted.internet import defer import logging -import simplejson as json - logger = logging.getLogger(__name__) @@ -72,11 +70,7 @@ class TagServlet(RestServlet): if user_id != requester.user.to_string(): raise AuthError(403, "Cannot add tags for other users.") - try: - content_bytes = request.content.read() - body = json.loads(content_bytes) - except: - raise SynapseError(400, "Invalid tag JSON") + body = parse_json_object_from_request(request) max_id = yield self.store.add_tag_to_room(user_id, room_id, tag, body) diff --git a/synapse/rest/key/v2/remote_key_resource.py b/synapse/rest/key/v2/remote_key_resource.py index 81ef1f470..9552016fe 100644 --- a/synapse/rest/key/v2/remote_key_resource.py +++ b/synapse/rest/key/v2/remote_key_resource.py @@ -13,7 +13,7 @@ # limitations under the License. from synapse.http.server import request_handler, respond_with_json_bytes -from synapse.http.servlet import parse_integer +from synapse.http.servlet import parse_integer, parse_json_object_from_request from synapse.api.errors import SynapseError, Codes from twisted.web.resource import Resource @@ -22,7 +22,6 @@ from twisted.internet import defer from io import BytesIO -import json import logging logger = logging.getLogger(__name__) @@ -126,14 +125,7 @@ class RemoteKey(Resource): @request_handler @defer.inlineCallbacks def async_render_POST(self, request): - try: - content = json.loads(request.content.read()) - if type(content) != dict: - raise ValueError() - except ValueError: - raise SynapseError( - 400, "Content must be JSON object.", errcode=Codes.NOT_JSON - ) + content = parse_json_object_from_request(request) query = content["server_keys"] diff --git a/tests/rest/client/v1/test_profile.py b/tests/rest/client/v1/test_profile.py index 1d210f9bf..af02fce8f 100644 --- a/tests/rest/client/v1/test_profile.py +++ b/tests/rest/client/v1/test_profile.py @@ -95,7 +95,8 @@ class ProfileTestCase(unittest.TestCase): mocked_set.side_effect = AuthError(400, "message") (code, response) = yield self.mock_resource.trigger( - "PUT", "/profile/%s/displayname" % ("@4567:test"), '"Frank Jr."' + "PUT", "/profile/%s/displayname" % ("@4567:test"), + '{"displayname": "Frank Jr."}' ) self.assertTrue( @@ -121,7 +122,8 @@ class ProfileTestCase(unittest.TestCase): mocked_set.side_effect = SynapseError(400, "message") (code, response) = yield self.mock_resource.trigger( - "PUT", "/profile/%s/displayname" % ("@opaque:elsewhere"), None + "PUT", "/profile/%s/displayname" % ("@opaque:elsewhere"), + '{"displayname":"bob"}' ) self.assertTrue(