Kill off synapse.api.events.*

This commit is contained in:
Erik Johnston 2014-12-16 11:29:05 +00:00
parent 6a1da99fab
commit 3c77d13aa5
26 changed files with 74 additions and 925 deletions

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@ -68,6 +68,7 @@ class EventTypes(object):
PowerLevels = "m.room.power_levels"
Aliases = "m.room.aliases"
Redaction = "m.room.redaction"
Feedback = "m.room.message.feedback"
# These are used for validation
Message = "m.room.message"

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@ -1,148 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from synapse.util.jsonobject import JsonEncodedObject
def serialize_event(hs, e):
# FIXME(erikj): To handle the case of presence events and the like
if not isinstance(e, SynapseEvent):
return e
# Should this strip out None's?
d = {k: v for k, v in e.get_dict().items()}
if "age_ts" in d:
d["age"] = int(hs.get_clock().time_msec()) - d["age_ts"]
del d["age_ts"]
return d
class SynapseEvent(JsonEncodedObject):
"""Base class for Synapse events. These are JSON objects which must abide
by a certain well-defined structure.
"""
# Attributes that are currently assumed by the federation side:
# Mandatory:
# - event_id
# - room_id
# - type
# - is_state
#
# Optional:
# - state_key (mandatory when is_state is True)
# - prev_events (these can be filled out by the federation layer itself.)
# - prev_state
valid_keys = [
"event_id",
"type",
"room_id",
"user_id", # sender/initiator
"content", # HTTP body, JSON
"state_key",
"age_ts",
"prev_content",
"replaces_state",
"redacted_because",
"origin_server_ts",
]
internal_keys = [
"is_state",
"depth",
"destinations",
"origin",
"outlier",
"redacted",
"prev_events",
"hashes",
"signatures",
"prev_state",
"auth_events",
"state_hash",
]
required_keys = [
"event_id",
"room_id",
"content",
]
outlier = False
def __init__(self, raises=True, **kwargs):
super(SynapseEvent, self).__init__(**kwargs)
# if "content" in kwargs:
# self.check_json(self.content, raises=raises)
def get_content_template(self):
""" Retrieve the JSON template for this event as a dict.
The template must be a dict representing the JSON to match. Only
required keys should be present. The values of the keys in the template
are checked via type() to the values of the same keys in the actual
event JSON.
NB: If loading content via json.loads, you MUST define strings as
unicode.
For example:
Content:
{
"name": u"bob",
"age": 18,
"friends": [u"mike", u"jill"]
}
Template:
{
"name": u"string",
"age": 0,
"friends": [u"string"]
}
The values "string" and 0 could be anything, so long as the types
are the same as the content.
"""
raise NotImplementedError("get_content_template not implemented.")
def get_pdu_json(self, time_now=None):
pdu_json = self.get_full_dict()
pdu_json.pop("destinations", None)
pdu_json.pop("outlier", None)
pdu_json.pop("replaces_state", None)
pdu_json.pop("redacted", None)
pdu_json.pop("prev_content", None)
state_hash = pdu_json.pop("state_hash", None)
if state_hash is not None:
pdu_json.setdefault("unsigned", {})["state_hash"] = state_hash
content = pdu_json.get("content", {})
content.pop("prev", None)
if time_now is not None and "age_ts" in pdu_json:
age = time_now - pdu_json["age_ts"]
pdu_json.setdefault("unsigned", {})["age"] = int(age)
del pdu_json["age_ts"]
user_id = pdu_json.pop("user_id")
pdu_json["sender"] = user_id
return pdu_json
class SynapseStateEvent(SynapseEvent):
def __init__(self, **kwargs):
if "state_key" not in kwargs:
kwargs["state_key"] = ""
super(SynapseStateEvent, self).__init__(**kwargs)

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@ -1,90 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from synapse.api.events.room import (
RoomTopicEvent, MessageEvent, RoomMemberEvent, FeedbackEvent,
InviteJoinEvent, RoomConfigEvent, RoomNameEvent, GenericEvent,
RoomPowerLevelsEvent, RoomJoinRulesEvent,
RoomCreateEvent,
RoomRedactionEvent,
)
from synapse.types import EventID
from synapse.util.stringutils import random_string
class EventFactory(object):
_event_classes = [
RoomTopicEvent,
RoomNameEvent,
MessageEvent,
RoomMemberEvent,
FeedbackEvent,
InviteJoinEvent,
RoomConfigEvent,
RoomPowerLevelsEvent,
RoomJoinRulesEvent,
RoomCreateEvent,
RoomRedactionEvent,
]
def __init__(self, hs):
self._event_list = {} # dict of TYPE to event class
for event_class in EventFactory._event_classes:
self._event_list[event_class.TYPE] = event_class
self.clock = hs.get_clock()
self.hs = hs
self.event_id_count = 0
def create_event_id(self):
i = str(self.event_id_count)
self.event_id_count += 1
local_part = str(int(self.clock.time())) + i + random_string(5)
e_id = EventID.create(local_part, self.hs.hostname)
return e_id.to_string()
def create_event(self, etype=None, **kwargs):
kwargs["type"] = etype
if "event_id" not in kwargs:
kwargs["event_id"] = self.create_event_id()
kwargs["origin"] = self.hs.hostname
else:
ev_id = self.hs.parse_eventid(kwargs["event_id"])
kwargs["origin"] = ev_id.domain
if "origin_server_ts" not in kwargs:
kwargs["origin_server_ts"] = int(self.clock.time_msec())
# The "age" key is a delta timestamp that should be converted into an
# absolute timestamp the minute we see it.
if "age" in kwargs:
kwargs["age_ts"] = int(self.clock.time_msec()) - int(kwargs["age"])
del kwargs["age"]
elif "age_ts" not in kwargs:
kwargs["age_ts"] = int(self.clock.time_msec())
if etype in self._event_list:
handler = self._event_list[etype]
else:
handler = GenericEvent
return handler(**kwargs)

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@ -1,170 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from synapse.api.constants import Feedback, Membership
from synapse.api.errors import SynapseError
from . import SynapseEvent, SynapseStateEvent
class GenericEvent(SynapseEvent):
def get_content_template(self):
return {}
class RoomTopicEvent(SynapseEvent):
TYPE = "m.room.topic"
internal_keys = SynapseEvent.internal_keys + [
"topic",
]
def __init__(self, **kwargs):
kwargs["state_key"] = ""
if "topic" in kwargs["content"]:
kwargs["topic"] = kwargs["content"]["topic"]
super(RoomTopicEvent, self).__init__(**kwargs)
def get_content_template(self):
return {"topic": u"string"}
class RoomNameEvent(SynapseEvent):
TYPE = "m.room.name"
internal_keys = SynapseEvent.internal_keys + [
"name",
]
def __init__(self, **kwargs):
kwargs["state_key"] = ""
if "name" in kwargs["content"]:
kwargs["name"] = kwargs["content"]["name"]
super(RoomNameEvent, self).__init__(**kwargs)
def get_content_template(self):
return {"name": u"string"}
class RoomMemberEvent(SynapseEvent):
TYPE = "m.room.member"
valid_keys = SynapseEvent.valid_keys + [
# target is the state_key
"membership", # action
]
def __init__(self, **kwargs):
if "membership" not in kwargs:
kwargs["membership"] = kwargs.get("content", {}).get("membership")
if not kwargs["membership"] in Membership.LIST:
raise SynapseError(400, "Bad membership value.")
super(RoomMemberEvent, self).__init__(**kwargs)
def get_content_template(self):
return {"membership": u"string"}
class MessageEvent(SynapseEvent):
TYPE = "m.room.message"
valid_keys = SynapseEvent.valid_keys + [
"msg_id", # unique per room + user combo
]
def __init__(self, **kwargs):
super(MessageEvent, self).__init__(**kwargs)
def get_content_template(self):
return {"msgtype": u"string"}
class FeedbackEvent(SynapseEvent):
TYPE = "m.room.message.feedback"
valid_keys = SynapseEvent.valid_keys
def __init__(self, **kwargs):
super(FeedbackEvent, self).__init__(**kwargs)
if not kwargs["content"]["type"] in Feedback.LIST:
raise SynapseError(400, "Bad feedback value.")
def get_content_template(self):
return {
"type": u"string",
"target_event_id": u"string"
}
class InviteJoinEvent(SynapseEvent):
TYPE = "m.room.invite_join"
valid_keys = SynapseEvent.valid_keys + [
# target_user_id is the state_key
"target_host",
]
def __init__(self, **kwargs):
super(InviteJoinEvent, self).__init__(**kwargs)
def get_content_template(self):
return {}
class RoomConfigEvent(SynapseEvent):
TYPE = "m.room.config"
def __init__(self, **kwargs):
kwargs["state_key"] = ""
super(RoomConfigEvent, self).__init__(**kwargs)
def get_content_template(self):
return {}
class RoomCreateEvent(SynapseStateEvent):
TYPE = "m.room.create"
def get_content_template(self):
return {}
class RoomJoinRulesEvent(SynapseStateEvent):
TYPE = "m.room.join_rules"
def get_content_template(self):
return {}
class RoomPowerLevelsEvent(SynapseStateEvent):
TYPE = "m.room.power_levels"
def get_content_template(self):
return {}
class RoomAliasesEvent(SynapseStateEvent):
TYPE = "m.room.aliases"
def get_content_template(self):
return {}
class RoomRedactionEvent(SynapseEvent):
TYPE = "m.room.redaction"
valid_keys = SynapseEvent.valid_keys + ["redacts"]
def get_content_template(self):
return {}

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@ -1,85 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from .room import (
RoomMemberEvent, RoomJoinRulesEvent, RoomPowerLevelsEvent,
RoomAliasesEvent, RoomCreateEvent,
)
def prune_event(event):
""" Returns a pruned version of the given event, which removes all keys we
don't know about or think could potentially be dodgy.
This is used when we "redact" an event. We want to remove all fields that
the user has specified, but we do want to keep necessary information like
type, state_key etc.
"""
event_type = event.type
allowed_keys = [
"event_id",
"user_id",
"room_id",
"hashes",
"signatures",
"content",
"type",
"state_key",
"depth",
"prev_events",
"prev_state",
"auth_events",
"origin",
"origin_server_ts",
]
new_content = {}
def add_fields(*fields):
for field in fields:
if field in event.content:
new_content[field] = event.content[field]
if event_type == RoomMemberEvent.TYPE:
add_fields("membership")
elif event_type == RoomCreateEvent.TYPE:
add_fields("creator")
elif event_type == RoomJoinRulesEvent.TYPE:
add_fields("join_rule")
elif event_type == RoomPowerLevelsEvent.TYPE:
add_fields(
"users",
"users_default",
"events",
"events_default",
"events_default",
"state_default",
"ban",
"kick",
"redact",
)
elif event_type == RoomAliasesEvent.TYPE:
add_fields("aliases")
allowed_fields = {
k: v
for k, v in event.get_full_dict().items()
if k in allowed_keys
}
allowed_fields["content"] = new_content
return type(event)(**allowed_fields)

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@ -1,87 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from synapse.api.errors import SynapseError, Codes
class EventValidator(object):
def __init__(self, hs):
pass
def validate(self, event):
"""Checks the given JSON content abides by the rules of the template.
Args:
content : A JSON object to check.
raises: True to raise a SynapseError if the check fails.
Returns:
True if the content passes the template. Returns False if the check
fails and raises=False.
Raises:
SynapseError if the check fails and raises=True.
"""
# recursively call to inspect each layer
err_msg = self._check_json_template(
event.content,
event.get_content_template()
)
if err_msg:
raise SynapseError(400, err_msg, Codes.BAD_JSON)
else:
return True
def _check_json_template(self, content, template):
"""Check content and template matches.
If the template is a dict, each key in the dict will be validated with
the content, else it will just compare the types of content and
template. This basic type check is required because this function will
be recursively called and could be called with just strs or ints.
Args:
content: The content to validate.
template: The validation template.
Returns:
str: An error message if the validation fails, else None.
"""
if type(content) != type(template):
return "Mismatched types: %s" % template
if type(template) == dict:
for key in template:
if key not in content:
return "Missing %s key" % key
if type(content[key]) != type(template[key]):
return "Key %s is of the wrong type (got %s, want %s)" % (
key, type(content[key]), type(template[key]))
if type(content[key]) == dict:
# we must go deeper
msg = self._check_json_template(
content[key],
template[key]
)
if msg:
return msg
elif type(content[key]) == list:
# make sure each item type in content matches the template
for entry in content[key]:
msg = self._check_json_template(
entry,
template[key][0]
)
if msg:
return msg