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`bump_stamp` corresponds to the `stream_ordering` of the latest `DEFAULT_BUMP_EVENT_TYPES` in the room. This helps clients sort more readily without them needing to pull in a bunch of the timeline to determine the last activity. `bump_event_types` is a thing because for example, we don't want display name changes to mark the room as unread and bump it to the top. For encrypted rooms, we just have to consider any activity as a bump because we can't see the content and the client has to figure it out for themselves. Outside of Synapse, `bump_stamp` is just a free-form counter so other implementations could use `received_ts`or `origin_server_ts` (see the [*Security considerations* section in MSC3575 about the potential pitfalls of using `origin_server_ts`](https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/sync-v3/proposals/3575-sync.md#security-considerations)). It doesn't have any guarantee about always going up. In the Synapse case, it could go down if an event was redacted/removed (or purged in cases of retention policies). In the future, we could add `bump_event_types` as [MSC3575](https://github.com/matrix-org/matrix-spec-proposals/pull/3575) mentions if people need to customize the event types. --- In the Sliding Sync proxy, a similar [`timestamp` field was added](https://github.com/matrix-org/sliding-sync/pull/247) for the same purpose but the name is not obvious what it pertains to or what it's for. The `timestamp` field was also added to Ruma in https://github.com/ruma/ruma/pull/1622
309 lines
8.5 KiB
Python
309 lines
8.5 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2019 The Matrix.org Foundation C.I.C.
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# Copyright 2017 Vector Creations Ltd
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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"""Contains constants from the specification."""
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import enum
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from typing import Final
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# the max size of a (canonical-json-encoded) event
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MAX_PDU_SIZE = 65536
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# the "depth" field on events is limited to 2**63 - 1
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MAX_DEPTH = 2**63 - 1
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# the maximum length for a room alias is 255 characters
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MAX_ALIAS_LENGTH = 255
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# the maximum length for a user id is 255 characters
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MAX_USERID_LENGTH = 255
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# Constant value used for the pseudo-thread which is the main timeline.
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MAIN_TIMELINE: Final = "main"
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class Membership:
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"""Represents the membership states of a user in a room."""
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INVITE: Final = "invite"
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JOIN: Final = "join"
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KNOCK: Final = "knock"
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LEAVE: Final = "leave"
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BAN: Final = "ban"
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LIST: Final = {INVITE, JOIN, KNOCK, LEAVE, BAN}
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class PresenceState:
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"""Represents the presence state of a user."""
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OFFLINE: Final = "offline"
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UNAVAILABLE: Final = "unavailable"
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ONLINE: Final = "online"
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BUSY: Final = "org.matrix.msc3026.busy"
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class JoinRules:
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PUBLIC: Final = "public"
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KNOCK: Final = "knock"
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INVITE: Final = "invite"
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PRIVATE: Final = "private"
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# As defined for MSC3083.
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RESTRICTED: Final = "restricted"
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# As defined for MSC3787.
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KNOCK_RESTRICTED: Final = "knock_restricted"
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class RestrictedJoinRuleTypes:
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"""Understood types for the allow rules in restricted join rules."""
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ROOM_MEMBERSHIP: Final = "m.room_membership"
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class LoginType:
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PASSWORD: Final = "m.login.password"
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EMAIL_IDENTITY: Final = "m.login.email.identity"
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MSISDN: Final = "m.login.msisdn"
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RECAPTCHA: Final = "m.login.recaptcha"
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TERMS: Final = "m.login.terms"
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SSO: Final = "m.login.sso"
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DUMMY: Final = "m.login.dummy"
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REGISTRATION_TOKEN: Final = "m.login.registration_token"
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# This is used in the `type` parameter for /register when called by
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# an appservice to register a new user.
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APP_SERVICE_REGISTRATION_TYPE: Final = "m.login.application_service"
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class EventTypes:
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Member: Final = "m.room.member"
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Create: Final = "m.room.create"
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Tombstone: Final = "m.room.tombstone"
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JoinRules: Final = "m.room.join_rules"
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PowerLevels: Final = "m.room.power_levels"
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Aliases: Final = "m.room.aliases"
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Redaction: Final = "m.room.redaction"
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ThirdPartyInvite: Final = "m.room.third_party_invite"
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RoomHistoryVisibility: Final = "m.room.history_visibility"
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CanonicalAlias: Final = "m.room.canonical_alias"
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Encrypted: Final = "m.room.encrypted"
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RoomAvatar: Final = "m.room.avatar"
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RoomEncryption: Final = "m.room.encryption"
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GuestAccess: Final = "m.room.guest_access"
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# These are used for validation
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Message: Final = "m.room.message"
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Topic: Final = "m.room.topic"
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Name: Final = "m.room.name"
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ServerACL: Final = "m.room.server_acl"
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Pinned: Final = "m.room.pinned_events"
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Retention: Final = "m.room.retention"
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Dummy: Final = "org.matrix.dummy_event"
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SpaceChild: Final = "m.space.child"
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SpaceParent: Final = "m.space.parent"
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Reaction: Final = "m.reaction"
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Sticker: Final = "m.sticker"
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LiveLocationShareStart: Final = "m.beacon_info"
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CallInvite: Final = "m.call.invite"
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PollStart: Final = "m.poll.start"
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class ToDeviceEventTypes:
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RoomKeyRequest: Final = "m.room_key_request"
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class DeviceKeyAlgorithms:
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"""Spec'd algorithms for the generation of per-device keys"""
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ED25519: Final = "ed25519"
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CURVE25519: Final = "curve25519"
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SIGNED_CURVE25519: Final = "signed_curve25519"
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class EduTypes:
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PRESENCE: Final = "m.presence"
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TYPING: Final = "m.typing"
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RECEIPT: Final = "m.receipt"
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DEVICE_LIST_UPDATE: Final = "m.device_list_update"
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SIGNING_KEY_UPDATE: Final = "m.signing_key_update"
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UNSTABLE_SIGNING_KEY_UPDATE: Final = "org.matrix.signing_key_update"
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DIRECT_TO_DEVICE: Final = "m.direct_to_device"
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class RejectedReason:
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AUTH_ERROR: Final = "auth_error"
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OVERSIZED_EVENT: Final = "oversized_event"
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class RoomCreationPreset:
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PRIVATE_CHAT: Final = "private_chat"
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PUBLIC_CHAT: Final = "public_chat"
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TRUSTED_PRIVATE_CHAT: Final = "trusted_private_chat"
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class ThirdPartyEntityKind:
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USER: Final = "user"
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LOCATION: Final = "location"
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ServerNoticeMsgType: Final = "m.server_notice"
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ServerNoticeLimitReached: Final = "m.server_notice.usage_limit_reached"
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class UserTypes:
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"""Allows for user type specific behaviour. With the benefit of hindsight
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'admin' and 'guest' users should also be UserTypes. Normal users are type None
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"""
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SUPPORT: Final = "support"
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BOT: Final = "bot"
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ALL_USER_TYPES: Final = (SUPPORT, BOT)
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class RelationTypes:
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"""The types of relations known to this server."""
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ANNOTATION: Final = "m.annotation"
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REPLACE: Final = "m.replace"
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REFERENCE: Final = "m.reference"
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THREAD: Final = "m.thread"
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class LimitBlockingTypes:
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"""Reasons that a server may be blocked"""
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MONTHLY_ACTIVE_USER: Final = "monthly_active_user"
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HS_DISABLED: Final = "hs_disabled"
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class EventContentFields:
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"""Fields found in events' content, regardless of type."""
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# Labels for the event, cf https://github.com/matrix-org/matrix-doc/pull/2326
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LABELS: Final = "org.matrix.labels"
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# Timestamp to delete the event after
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# cf https://github.com/matrix-org/matrix-doc/pull/2228
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SELF_DESTRUCT_AFTER: Final = "org.matrix.self_destruct_after"
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# cf https://github.com/matrix-org/matrix-doc/pull/1772
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ROOM_TYPE: Final = "type"
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# Whether a room can federate.
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FEDERATE: Final = "m.federate"
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# The creator of the room, as used in `m.room.create` events.
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#
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# This is deprecated in MSC2175.
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ROOM_CREATOR: Final = "creator"
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# Used in m.room.guest_access events.
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GUEST_ACCESS: Final = "guest_access"
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# The authorising user for joining a restricted room.
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AUTHORISING_USER: Final = "join_authorised_via_users_server"
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# Use for mentioning users.
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MENTIONS: Final = "m.mentions"
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# an unspecced field added to to-device messages to identify them uniquely-ish
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TO_DEVICE_MSGID: Final = "org.matrix.msgid"
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class EventUnsignedContentFields:
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"""Fields found inside the 'unsigned' data on events"""
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# Requesting user's membership, per MSC4115
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MEMBERSHIP: Final = "membership"
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class RoomTypes:
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"""Understood values of the room_type field of m.room.create events."""
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SPACE: Final = "m.space"
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class RoomEncryptionAlgorithms:
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MEGOLM_V1_AES_SHA2: Final = "m.megolm.v1.aes-sha2"
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DEFAULT: Final = MEGOLM_V1_AES_SHA2
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class AccountDataTypes:
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DIRECT: Final = "m.direct"
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IGNORED_USER_LIST: Final = "m.ignored_user_list"
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TAG: Final = "m.tag"
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PUSH_RULES: Final = "m.push_rules"
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class HistoryVisibility:
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INVITED: Final = "invited"
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JOINED: Final = "joined"
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SHARED: Final = "shared"
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WORLD_READABLE: Final = "world_readable"
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class GuestAccess:
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CAN_JOIN: Final = "can_join"
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# anything that is not "can_join" is considered "forbidden", but for completeness:
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FORBIDDEN: Final = "forbidden"
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class ReceiptTypes:
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READ: Final = "m.read"
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READ_PRIVATE: Final = "m.read.private"
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FULLY_READ: Final = "m.fully_read"
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class PublicRoomsFilterFields:
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"""Fields in the search filter for `/publicRooms` that we understand.
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As defined in https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3publicrooms
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"""
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GENERIC_SEARCH_TERM: Final = "generic_search_term"
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ROOM_TYPES: Final = "room_types"
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class ApprovalNoticeMedium:
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"""Identifier for the medium this server will use to serve notice of approval for a
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specific user's registration.
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As defined in https://github.com/matrix-org/matrix-spec-proposals/blob/babolivier/m_not_approved/proposals/3866-user-not-approved-error.md
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"""
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NONE = "org.matrix.msc3866.none"
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EMAIL = "org.matrix.msc3866.email"
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class Direction(enum.Enum):
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BACKWARDS = "b"
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FORWARDS = "f"
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