diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/constants.py | 5 | ||||
| -rw-r--r-- | synapse/config/homeserver.py | 2 | ||||
| -rw-r--r-- | synapse/config/room.py | 80 | ||||
| -rw-r--r-- | synapse/handlers/federation.py | 12 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 74 |
5 files changed, 144 insertions, 29 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 5ec4a77ccd..6a6d32c302 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -150,3 +150,8 @@ class EventContentFields(object): # Timestamp to delete the event after # cf https://github.com/matrix-org/matrix-doc/pull/2228 SELF_DESTRUCT_AFTER = "org.matrix.self_destruct_after" + + +class RoomEncryptionAlgorithms(object): + MEGOLM_V1_AES_SHA2 = "m.megolm.v1.aes-sha2" + DEFAULT = MEGOLM_V1_AES_SHA2 diff --git a/synapse/config/homeserver.py b/synapse/config/homeserver.py index 2c7b3a699f..264c274c52 100644 --- a/synapse/config/homeserver.py +++ b/synapse/config/homeserver.py @@ -36,6 +36,7 @@ from .ratelimiting import RatelimitConfig from .redis import RedisConfig from .registration import RegistrationConfig from .repository import ContentRepositoryConfig +from .room import RoomConfig from .room_directory import RoomDirectoryConfig from .saml2_config import SAML2Config from .server import ServerConfig @@ -79,6 +80,7 @@ class HomeServerConfig(RootConfig): PasswordAuthProviderConfig, PushConfig, SpamCheckerConfig, + RoomConfig, GroupsConfig, UserDirectoryConfig, ConsentConfig, diff --git a/synapse/config/room.py b/synapse/config/room.py new file mode 100644 index 0000000000..6aa4de0672 --- /dev/null +++ b/synapse/config/room.py @@ -0,0 +1,80 @@ +# -*- coding: utf-8 -*- +# Copyright 2020 The Matrix.org Foundation C.I.C. +# +# 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. + +import logging + +from synapse.api.constants import RoomCreationPreset + +from ._base import Config, ConfigError + +logger = logging.Logger(__name__) + + +class RoomDefaultEncryptionTypes(object): + """Possible values for the encryption_enabled_by_default_for_room_type config option""" + + ALL = "all" + INVITE = "invite" + OFF = "off" + + +class RoomConfig(Config): + section = "room" + + def read_config(self, config, **kwargs): + # Whether new, locally-created rooms should have encryption enabled + encryption_for_room_type = config.get( + "encryption_enabled_by_default_for_room_type", + RoomDefaultEncryptionTypes.OFF, + ) + if encryption_for_room_type == RoomDefaultEncryptionTypes.ALL: + self.encryption_enabled_by_default_for_room_presets = [ + RoomCreationPreset.PRIVATE_CHAT, + RoomCreationPreset.TRUSTED_PRIVATE_CHAT, + RoomCreationPreset.PUBLIC_CHAT, + ] + elif encryption_for_room_type == RoomDefaultEncryptionTypes.INVITE: + self.encryption_enabled_by_default_for_room_presets = [ + RoomCreationPreset.PRIVATE_CHAT, + RoomCreationPreset.TRUSTED_PRIVATE_CHAT, + ] + elif encryption_for_room_type == RoomDefaultEncryptionTypes.OFF: + self.encryption_enabled_by_default_for_room_presets = [] + else: + raise ConfigError( + "Invalid value for encryption_enabled_by_default_for_room_type" + ) + + def generate_config_section(self, **kwargs): + return """\ + ## Rooms ## + + # Controls whether locally-created rooms should be end-to-end encrypted by + # default. + # + # Possible options are "all", "invite", and "off". They are defined as: + # + # * "all": any locally-created room + # * "invite": any room created with the "private_chat" or "trusted_private_chat" + # room creation presets + # * "off": this option will take no effect + # + # The default value is "off". + # + # Note that this option will only affect rooms created after it is set. It + # will also not affect rooms created by other servers. + # + #encryption_enabled_by_default_for_room_type: invite + """ diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 3e60774b33..b30f41dc4b 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -33,7 +33,12 @@ from unpaddedbase64 import decode_base64 from twisted.internet import defer from synapse import event_auth -from synapse.api.constants import EventTypes, Membership, RejectedReason +from synapse.api.constants import ( + EventTypes, + Membership, + RejectedReason, + RoomEncryptionAlgorithms, +) from synapse.api.errors import ( AuthError, CodeMessageException, @@ -742,7 +747,10 @@ class FederationHandler(BaseHandler): if device: keys = device.get("keys", {}).get("keys", {}) - if event.content.get("algorithm") == "m.megolm.v1.aes-sha2": + if ( + event.content.get("algorithm") + == RoomEncryptionAlgorithms.MEGOLM_V1_AES_SHA2 + ): # For this algorithm we expect a curve25519 key. key_name = "curve25519:%s" % (device_id,) current_keys = [keys.get(key_name)] diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 61db3ccc43..46c2739143 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -26,7 +26,12 @@ from typing import Tuple from six import iteritems, string_types -from synapse.api.constants import EventTypes, JoinRules, RoomCreationPreset +from synapse.api.constants import ( + EventTypes, + JoinRules, + RoomCreationPreset, + RoomEncryptionAlgorithms, +) from synapse.api.errors import AuthError, Codes, NotFoundError, StoreError, SynapseError from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, RoomVersion from synapse.events.utils import copy_power_levels_contents @@ -56,31 +61,6 @@ FIVE_MINUTES_IN_MS = 5 * 60 * 1000 class RoomCreationHandler(BaseHandler): - - PRESETS_DICT = { - RoomCreationPreset.PRIVATE_CHAT: { - "join_rules": JoinRules.INVITE, - "history_visibility": "shared", - "original_invitees_have_ops": False, - "guest_can_join": True, - "power_level_content_override": {"invite": 0}, - }, - RoomCreationPreset.TRUSTED_PRIVATE_CHAT: { - "join_rules": JoinRules.INVITE, - "history_visibility": "shared", - "original_invitees_have_ops": True, - "guest_can_join": True, - "power_level_content_override": {"invite": 0}, - }, - RoomCreationPreset.PUBLIC_CHAT: { - "join_rules": JoinRules.PUBLIC, - "history_visibility": "shared", - "original_invitees_have_ops": False, - "guest_can_join": False, - "power_level_content_override": {}, - }, - } - def __init__(self, hs): super(RoomCreationHandler, self).__init__(hs) @@ -89,6 +69,39 @@ class RoomCreationHandler(BaseHandler): self.room_member_handler = hs.get_room_member_handler() self.config = hs.config + # Room state based off defined presets + self._presets_dict = { + RoomCreationPreset.PRIVATE_CHAT: { + "join_rules": JoinRules.INVITE, + "history_visibility": "shared", + "original_invitees_have_ops": False, + "guest_can_join": True, + "power_level_content_override": {"invite": 0}, + }, + RoomCreationPreset.TRUSTED_PRIVATE_CHAT: { + "join_rules": JoinRules.INVITE, + "history_visibility": "shared", + "original_invitees_have_ops": True, + "guest_can_join": True, + "power_level_content_override": {"invite": 0}, + }, + RoomCreationPreset.PUBLIC_CHAT: { + "join_rules": JoinRules.PUBLIC, + "history_visibility": "shared", + "original_invitees_have_ops": False, + "guest_can_join": False, + "power_level_content_override": {}, + }, + } + + # Modify presets to selectively enable encryption by default per homeserver config + for preset_name, preset_config in self._presets_dict.items(): + encrypted = ( + preset_name + in self.config.encryption_enabled_by_default_for_room_presets + ) + preset_config["encrypted"] = encrypted + self._replication = hs.get_replication_data_handler() # linearizer to stop two upgrades happening at once @@ -798,7 +811,7 @@ class RoomCreationHandler(BaseHandler): ) return last_stream_id - config = RoomCreationHandler.PRESETS_DICT[preset_config] + config = self._presets_dict[preset_config] creator_id = creator.user.to_string() @@ -888,6 +901,13 @@ class RoomCreationHandler(BaseHandler): etype=etype, state_key=state_key, content=content ) + if config["encrypted"]: + last_sent_stream_id = await send( + etype=EventTypes.RoomEncryption, + state_key="", + content={"algorithm": RoomEncryptionAlgorithms.DEFAULT}, + ) + return last_sent_stream_id async def _generate_room_id( |