mirror of
https://github.com/element-hq/synapse.git
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92 lines
2.8 KiB
Python
92 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket 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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from synapse.types import EventID, RoomID, UserID
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from synapse.api.errors import SynapseError
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from synapse.api.constants import EventTypes, Membership
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class EventValidator(object):
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def validate(self, event):
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EventID.from_string(event.event_id)
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RoomID.from_string(event.room_id)
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required = [
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# "auth_events",
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"content",
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# "hashes",
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"origin",
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# "prev_events",
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"sender",
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"type",
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]
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for k in required:
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if not hasattr(event, k):
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raise SynapseError(400, "Event does not have key %s" % (k,))
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# Check that the following keys have string values
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strings = [
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"origin",
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"sender",
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"type",
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]
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if hasattr(event, "state_key"):
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strings.append("state_key")
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for s in strings:
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if not isinstance(getattr(event, s), basestring):
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raise SynapseError(400, "Not '%s' a string type" % (s,))
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if event.type == EventTypes.Member:
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if "membership" not in event.content:
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raise SynapseError(400, "Content has not membership key")
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if event.content["membership"] not in Membership.LIST:
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raise SynapseError(400, "Invalid membership key")
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# Check that the following keys have dictionary values
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# TODO
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# Check that the following keys have the correct format for DAGs
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# TODO
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def validate_new(self, event):
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self.validate(event)
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UserID.from_string(event.sender)
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if event.type == EventTypes.Message:
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strings = [
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"body",
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"msgtype",
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]
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self._ensure_strings(event.content, strings)
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elif event.type == EventTypes.Topic:
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self._ensure_strings(event.content, ["topic"])
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elif event.type == EventTypes.Name:
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self._ensure_strings(event.content, ["name"])
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def _ensure_strings(self, d, keys):
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for s in keys:
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if s not in d:
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raise SynapseError(400, "'%s' not in content" % (s,))
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if not isinstance(d[s], basestring):
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raise SynapseError(400, "Not '%s' a string type" % (s,))
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