119 lines
4.1 KiB
Go
119 lines
4.1 KiB
Go
// Copyright 2017 Vector Creations 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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// Package api provides the types that are used to communicate with the roomserver.
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package api
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import (
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"fmt"
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"github.com/matrix-org/gomatrixserverlib"
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)
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type Kind int
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const (
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// KindOutlier event fall outside the contiguous event graph.
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// We do not have the state for these events.
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// These events are state events used to authenticate other events.
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// They can become part of the contiguous event graph via backfill.
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KindOutlier Kind = iota + 1
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// KindNew event extend the contiguous graph going forwards.
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// They usually don't need state, but may include state if the
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// there was a new event that references an event that we don't
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// have a copy of. New events will influence the fwd extremities
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// of the room and output events will be generated as a result.
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KindNew
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// KindOld event extend the graph backwards, or fill gaps in
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// history. They may or may not include state. They will not be
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// considered for forward extremities, and output events will NOT
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// be generated for them.
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KindOld
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)
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func (k Kind) String() string {
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switch k {
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case KindOutlier:
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return "KindOutlier"
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case KindNew:
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return "KindNew"
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case KindOld:
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return "KindOld"
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default:
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return "(unknown)"
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}
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}
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// DoNotSendToOtherServers tells us not to send the event to other matrix
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// servers.
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const DoNotSendToOtherServers = ""
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// InputRoomEvent is a matrix room event to add to the room server database.
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// TODO: Implement UnmarshalJSON/MarshalJSON in a way that does something sensible with the event JSON.
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type InputRoomEvent struct {
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// Whether this event is new, backfilled or an outlier.
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// This controls how the event is processed.
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Kind Kind `json:"kind"`
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// The event JSON for the event to add.
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Event *gomatrixserverlib.HeaderedEvent `json:"event"`
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// Which server told us about this event.
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Origin gomatrixserverlib.ServerName `json:"origin"`
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// Whether the state is supplied as a list of event IDs or whether it
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// should be derived from the state at the previous events.
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HasState bool `json:"has_state"`
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// Optional list of state event IDs forming the state before this event.
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// These state events must have already been persisted.
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// These are only used if HasState is true.
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// The list can be empty, for example when storing the first event in a room.
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StateEventIDs []string `json:"state_event_ids"`
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// The server name to use to push this event to other servers.
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// Or empty if this event shouldn't be pushed to other servers.
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SendAsServer string `json:"send_as_server"`
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// The transaction ID of the send request if sent by a local user and one
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// was specified
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TransactionID *TransactionID `json:"transaction_id"`
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}
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// TransactionID contains the transaction ID sent by a client when sending an
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// event, along with the ID of the client session.
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type TransactionID struct {
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SessionID int64 `json:"session_id"`
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TransactionID string `json:"id"`
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}
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// InputRoomEventsRequest is a request to InputRoomEvents
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type InputRoomEventsRequest struct {
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InputRoomEvents []InputRoomEvent `json:"input_room_events"`
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Asynchronous bool `json:"async"`
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VirtualHost gomatrixserverlib.ServerName `json:"virtual_host"`
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}
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// InputRoomEventsResponse is a response to InputRoomEvents
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type InputRoomEventsResponse struct {
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ErrMsg string // set if there was any error
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NotAllowed bool // true if an event in the input was not allowed.
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}
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func (r *InputRoomEventsResponse) Err() error {
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if r.ErrMsg == "" {
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return nil
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}
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if r.NotAllowed {
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return &gomatrixserverlib.NotAllowed{
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Message: r.ErrMsg,
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}
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}
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return fmt.Errorf("InputRoomEventsResponse: %s", r.ErrMsg)
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}
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