forked-synapse/synapse/api/constants.py
Sean Quah 7862f821de
Annotate string constants in synapse.api.constants with Final (#11356)
This change makes mypy complain if the constants are ever reassigned,
and, more usefully, makes mypy type them as `Literal`s instead of `str`s,
allowing code of the following form to pass mypy:
```py
def do_something(membership: Literal["join", "leave"], ...): ...

do_something(Membership.JOIN, ...)
```
2021-11-25 16:14:23 +00:00

258 lines
7.4 KiB
Python

# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2017 Vector Creations Ltd
# Copyright 2018-2019 New Vector Ltd
# Copyright 2019 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.
"""Contains constants from the specification."""
from typing_extensions import Final
# the max size of a (canonical-json-encoded) event
MAX_PDU_SIZE = 65536
# the "depth" field on events is limited to 2**63 - 1
MAX_DEPTH = 2 ** 63 - 1
# the maximum length for a room alias is 255 characters
MAX_ALIAS_LENGTH = 255
# the maximum length for a user id is 255 characters
MAX_USERID_LENGTH = 255
# The maximum length for a group id is 255 characters
MAX_GROUPID_LENGTH = 255
MAX_GROUP_CATEGORYID_LENGTH = 255
MAX_GROUP_ROLEID_LENGTH = 255
class Membership:
"""Represents the membership states of a user in a room."""
INVITE: Final = "invite"
JOIN: Final = "join"
KNOCK: Final = "knock"
LEAVE: Final = "leave"
BAN: Final = "ban"
LIST: Final = (INVITE, JOIN, KNOCK, LEAVE, BAN)
class PresenceState:
"""Represents the presence state of a user."""
OFFLINE: Final = "offline"
UNAVAILABLE: Final = "unavailable"
ONLINE: Final = "online"
BUSY: Final = "org.matrix.msc3026.busy"
class JoinRules:
PUBLIC: Final = "public"
KNOCK: Final = "knock"
INVITE: Final = "invite"
PRIVATE: Final = "private"
# As defined for MSC3083.
RESTRICTED: Final = "restricted"
class RestrictedJoinRuleTypes:
"""Understood types for the allow rules in restricted join rules."""
ROOM_MEMBERSHIP: Final = "m.room_membership"
class LoginType:
PASSWORD: Final = "m.login.password"
EMAIL_IDENTITY: Final = "m.login.email.identity"
MSISDN: Final = "m.login.msisdn"
RECAPTCHA: Final = "m.login.recaptcha"
TERMS: Final = "m.login.terms"
SSO: Final = "m.login.sso"
DUMMY: Final = "m.login.dummy"
REGISTRATION_TOKEN: Final = "org.matrix.msc3231.login.registration_token"
# This is used in the `type` parameter for /register when called by
# an appservice to register a new user.
APP_SERVICE_REGISTRATION_TYPE: Final = "m.login.application_service"
class EventTypes:
Member: Final = "m.room.member"
Create: Final = "m.room.create"
Tombstone: Final = "m.room.tombstone"
JoinRules: Final = "m.room.join_rules"
PowerLevels: Final = "m.room.power_levels"
Aliases: Final = "m.room.aliases"
Redaction: Final = "m.room.redaction"
ThirdPartyInvite: Final = "m.room.third_party_invite"
RelatedGroups: Final = "m.room.related_groups"
RoomHistoryVisibility: Final = "m.room.history_visibility"
CanonicalAlias: Final = "m.room.canonical_alias"
Encrypted: Final = "m.room.encrypted"
RoomAvatar: Final = "m.room.avatar"
RoomEncryption: Final = "m.room.encryption"
GuestAccess: Final = "m.room.guest_access"
# These are used for validation
Message: Final = "m.room.message"
Topic: Final = "m.room.topic"
Name: Final = "m.room.name"
ServerACL: Final = "m.room.server_acl"
Pinned: Final = "m.room.pinned_events"
Retention: Final = "m.room.retention"
Dummy: Final = "org.matrix.dummy_event"
SpaceChild: Final = "m.space.child"
SpaceParent: Final = "m.space.parent"
MSC2716_INSERTION: Final = "org.matrix.msc2716.insertion"
MSC2716_BATCH: Final = "org.matrix.msc2716.batch"
MSC2716_MARKER: Final = "org.matrix.msc2716.marker"
class ToDeviceEventTypes:
RoomKeyRequest: Final = "m.room_key_request"
class DeviceKeyAlgorithms:
"""Spec'd algorithms for the generation of per-device keys"""
ED25519: Final = "ed25519"
CURVE25519: Final = "curve25519"
SIGNED_CURVE25519: Final = "signed_curve25519"
class EduTypes:
Presence: Final = "m.presence"
class RejectedReason:
AUTH_ERROR: Final = "auth_error"
class RoomCreationPreset:
PRIVATE_CHAT: Final = "private_chat"
PUBLIC_CHAT: Final = "public_chat"
TRUSTED_PRIVATE_CHAT: Final = "trusted_private_chat"
class ThirdPartyEntityKind:
USER: Final = "user"
LOCATION: Final = "location"
ServerNoticeMsgType: Final = "m.server_notice"
ServerNoticeLimitReached: Final = "m.server_notice.usage_limit_reached"
class UserTypes:
"""Allows for user type specific behaviour. With the benefit of hindsight
'admin' and 'guest' users should also be UserTypes. Normal users are type None
"""
SUPPORT: Final = "support"
BOT: Final = "bot"
ALL_USER_TYPES: Final = (SUPPORT, BOT)
class RelationTypes:
"""The types of relations known to this server."""
ANNOTATION: Final = "m.annotation"
REPLACE: Final = "m.replace"
REFERENCE: Final = "m.reference"
THREAD: Final = "io.element.thread"
class LimitBlockingTypes:
"""Reasons that a server may be blocked"""
MONTHLY_ACTIVE_USER: Final = "monthly_active_user"
HS_DISABLED: Final = "hs_disabled"
class EventContentFields:
"""Fields found in events' content, regardless of type."""
# Labels for the event, cf https://github.com/matrix-org/matrix-doc/pull/2326
LABELS: Final = "org.matrix.labels"
# Timestamp to delete the event after
# cf https://github.com/matrix-org/matrix-doc/pull/2228
SELF_DESTRUCT_AFTER: Final = "org.matrix.self_destruct_after"
# cf https://github.com/matrix-org/matrix-doc/pull/1772
ROOM_TYPE: Final = "type"
# Whether a room can federate.
FEDERATE: Final = "m.federate"
# The creator of the room, as used in `m.room.create` events.
ROOM_CREATOR: Final = "creator"
# Used in m.room.guest_access events.
GUEST_ACCESS: Final = "guest_access"
# Used on normal messages to indicate they were historically imported after the fact
MSC2716_HISTORICAL: Final = "org.matrix.msc2716.historical"
# For "insertion" events to indicate what the next batch ID should be in
# order to connect to it
MSC2716_NEXT_BATCH_ID: Final = "org.matrix.msc2716.next_batch_id"
# Used on "batch" events to indicate which insertion event it connects to
MSC2716_BATCH_ID: Final = "org.matrix.msc2716.batch_id"
# For "marker" events
MSC2716_MARKER_INSERTION: Final = "org.matrix.msc2716.marker.insertion"
# The authorising user for joining a restricted room.
AUTHORISING_USER: Final = "join_authorised_via_users_server"
class RoomTypes:
"""Understood values of the room_type field of m.room.create events."""
SPACE: Final = "m.space"
class RoomEncryptionAlgorithms:
MEGOLM_V1_AES_SHA2: Final = "m.megolm.v1.aes-sha2"
DEFAULT: Final = MEGOLM_V1_AES_SHA2
class AccountDataTypes:
DIRECT: Final = "m.direct"
IGNORED_USER_LIST: Final = "m.ignored_user_list"
class HistoryVisibility:
INVITED: Final = "invited"
JOINED: Final = "joined"
SHARED: Final = "shared"
WORLD_READABLE: Final = "world_readable"
class GuestAccess:
CAN_JOIN: Final = "can_join"
# anything that is not "can_join" is considered "forbidden", but for completeness:
FORBIDDEN: Final = "forbidden"
class ReadReceiptEventFields:
MSC2285_HIDDEN: Final = "org.matrix.msc2285.hidden"