mirror of
https://github.com/matrix-org/dendrite
synced 2024-07-10 06:58:42 +02:00
18231f25b4
* WIP Event rejection * Still send back errors for rejected events Instead, discard them at the federationapi /send layer rather than re-implementing checks at the clientapi/PerformJoin layer. * Implement rejected events Critically, rejected events CAN cause state resolution to happen as it can merge forks in the DAG. This is fine, _provided_ we do not add the rejected event when performing state resolution, which is what this PR does. It also fixes the error handling when NotAllowed happens, as we were checking too early and needlessly handling NotAllowed in more than one place. * Update test to match reality * Modify InputRoomEvents to no longer return an error Errors do not serialise across HTTP boundaries in polylith mode, so instead set fields on the InputRoomEventsResponse. Add `Err()` function to make the API shape basically the same. * Remove redundant returns; linting * Update blacklist
204 lines
11 KiB
Go
204 lines
11 KiB
Go
package tables
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import (
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"context"
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"database/sql"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/tidwall/gjson"
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)
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type EventJSONPair struct {
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EventNID types.EventNID
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EventJSON []byte
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}
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type EventJSON interface {
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// Insert the event JSON. On conflict, replace the event JSON with the new value (for redactions).
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InsertEventJSON(ctx context.Context, tx *sql.Tx, eventNID types.EventNID, eventJSON []byte) error
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BulkSelectEventJSON(ctx context.Context, eventNIDs []types.EventNID) ([]EventJSONPair, error)
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}
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type EventTypes interface {
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InsertEventTypeNID(ctx context.Context, tx *sql.Tx, eventType string) (types.EventTypeNID, error)
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SelectEventTypeNID(ctx context.Context, tx *sql.Tx, eventType string) (types.EventTypeNID, error)
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BulkSelectEventTypeNID(ctx context.Context, eventTypes []string) (map[string]types.EventTypeNID, error)
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}
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type EventStateKeys interface {
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InsertEventStateKeyNID(ctx context.Context, txn *sql.Tx, eventStateKey string) (types.EventStateKeyNID, error)
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SelectEventStateKeyNID(ctx context.Context, txn *sql.Tx, eventStateKey string) (types.EventStateKeyNID, error)
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BulkSelectEventStateKeyNID(ctx context.Context, eventStateKeys []string) (map[string]types.EventStateKeyNID, error)
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BulkSelectEventStateKey(ctx context.Context, eventStateKeyNIDs []types.EventStateKeyNID) (map[types.EventStateKeyNID]string, error)
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}
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type Events interface {
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InsertEvent(
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ctx context.Context, txn *sql.Tx, i types.RoomNID, j types.EventTypeNID, k types.EventStateKeyNID, eventID string,
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referenceSHA256 []byte, authEventNIDs []types.EventNID, depth int64, isRejected bool,
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) (types.EventNID, types.StateSnapshotNID, error)
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SelectEvent(ctx context.Context, txn *sql.Tx, eventID string) (types.EventNID, types.StateSnapshotNID, error)
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// bulkSelectStateEventByID lookups a list of state events by event ID.
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// If any of the requested events are missing from the database it returns a types.MissingEventError
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BulkSelectStateEventByID(ctx context.Context, eventIDs []string) ([]types.StateEntry, error)
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// BulkSelectStateAtEventByID lookups the state at a list of events by event ID.
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// If any of the requested events are missing from the database it returns a types.MissingEventError.
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// If we do not have the state for any of the requested events it returns a types.MissingEventError.
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BulkSelectStateAtEventByID(ctx context.Context, eventIDs []string) ([]types.StateAtEvent, error)
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UpdateEventState(ctx context.Context, txn *sql.Tx, eventNID types.EventNID, stateNID types.StateSnapshotNID) error
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SelectEventSentToOutput(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) (sentToOutput bool, err error)
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UpdateEventSentToOutput(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) error
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SelectEventID(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) (eventID string, err error)
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BulkSelectStateAtEventAndReference(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) ([]types.StateAtEventAndReference, error)
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BulkSelectEventReference(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) ([]gomatrixserverlib.EventReference, error)
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// BulkSelectEventID returns a map from numeric event ID to string event ID.
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BulkSelectEventID(ctx context.Context, eventNIDs []types.EventNID) (map[types.EventNID]string, error)
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// BulkSelectEventNIDs returns a map from string event ID to numeric event ID.
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// If an event ID is not in the database then it is omitted from the map.
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BulkSelectEventNID(ctx context.Context, eventIDs []string) (map[string]types.EventNID, error)
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SelectMaxEventDepth(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) (int64, error)
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SelectRoomNIDForEventNID(ctx context.Context, eventNID types.EventNID) (roomNID types.RoomNID, err error)
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}
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type Rooms interface {
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InsertRoomNID(ctx context.Context, txn *sql.Tx, roomID string, roomVersion gomatrixserverlib.RoomVersion) (types.RoomNID, error)
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SelectRoomNID(ctx context.Context, txn *sql.Tx, roomID string) (types.RoomNID, error)
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SelectLatestEventNIDs(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID) ([]types.EventNID, types.StateSnapshotNID, error)
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SelectLatestEventsNIDsForUpdate(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID) ([]types.EventNID, types.EventNID, types.StateSnapshotNID, error)
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UpdateLatestEventNIDs(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, eventNIDs []types.EventNID, lastEventSentNID types.EventNID, stateSnapshotNID types.StateSnapshotNID) error
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SelectRoomVersionForRoomNID(ctx context.Context, roomNID types.RoomNID) (gomatrixserverlib.RoomVersion, error)
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SelectRoomInfo(ctx context.Context, roomID string) (*types.RoomInfo, error)
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SelectRoomIDs(ctx context.Context) ([]string, error)
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BulkSelectRoomIDs(ctx context.Context, roomNIDs []types.RoomNID) ([]string, error)
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BulkSelectRoomNIDs(ctx context.Context, roomIDs []string) ([]types.RoomNID, error)
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}
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type Transactions interface {
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InsertTransaction(ctx context.Context, txn *sql.Tx, transactionID string, sessionID int64, userID string, eventID string) error
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SelectTransactionEventID(ctx context.Context, transactionID string, sessionID int64, userID string) (eventID string, err error)
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}
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type StateSnapshot interface {
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InsertState(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, stateBlockNIDs []types.StateBlockNID) (stateNID types.StateSnapshotNID, err error)
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BulkSelectStateBlockNIDs(ctx context.Context, stateNIDs []types.StateSnapshotNID) ([]types.StateBlockNIDList, error)
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}
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type StateBlock interface {
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BulkInsertStateData(ctx context.Context, txn *sql.Tx, entries []types.StateEntry) (types.StateBlockNID, error)
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BulkSelectStateBlockEntries(ctx context.Context, stateBlockNIDs []types.StateBlockNID) ([]types.StateEntryList, error)
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BulkSelectFilteredStateBlockEntries(ctx context.Context, stateBlockNIDs []types.StateBlockNID, stateKeyTuples []types.StateKeyTuple) ([]types.StateEntryList, error)
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}
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type RoomAliases interface {
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InsertRoomAlias(ctx context.Context, txn *sql.Tx, alias string, roomID string, creatorUserID string) (err error)
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SelectRoomIDFromAlias(ctx context.Context, alias string) (roomID string, err error)
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SelectAliasesFromRoomID(ctx context.Context, roomID string) ([]string, error)
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SelectCreatorIDFromAlias(ctx context.Context, alias string) (creatorID string, err error)
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DeleteRoomAlias(ctx context.Context, txn *sql.Tx, alias string) (err error)
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}
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type PreviousEvents interface {
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InsertPreviousEvent(ctx context.Context, txn *sql.Tx, previousEventID string, previousEventReferenceSHA256 []byte, eventNID types.EventNID) error
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// Check if the event reference exists
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// Returns sql.ErrNoRows if the event reference doesn't exist.
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SelectPreviousEventExists(ctx context.Context, txn *sql.Tx, eventID string, eventReferenceSHA256 []byte) error
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}
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type Invites interface {
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InsertInviteEvent(ctx context.Context, txn *sql.Tx, inviteEventID string, roomNID types.RoomNID, targetUserNID, senderUserNID types.EventStateKeyNID, inviteEventJSON []byte) (bool, error)
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UpdateInviteRetired(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) ([]string, error)
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// SelectInviteActiveForUserInRoom returns a list of sender state key NIDs and invite event IDs matching those nids.
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SelectInviteActiveForUserInRoom(ctx context.Context, targetUserNID types.EventStateKeyNID, roomNID types.RoomNID) ([]types.EventStateKeyNID, []string, error)
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}
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type MembershipState int64
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const (
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MembershipStateLeaveOrBan MembershipState = 1
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MembershipStateInvite MembershipState = 2
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MembershipStateJoin MembershipState = 3
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)
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type Membership interface {
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InsertMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID, localTarget bool) error
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SelectMembershipForUpdate(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) (MembershipState, error)
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SelectMembershipFromRoomAndTarget(ctx context.Context, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) (types.EventNID, MembershipState, error)
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SelectMembershipsFromRoom(ctx context.Context, roomNID types.RoomNID, localOnly bool) (eventNIDs []types.EventNID, err error)
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SelectMembershipsFromRoomAndMembership(ctx context.Context, roomNID types.RoomNID, membership MembershipState, localOnly bool) (eventNIDs []types.EventNID, err error)
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UpdateMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID, senderUserNID types.EventStateKeyNID, membership MembershipState, eventNID types.EventNID) error
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SelectRoomsWithMembership(ctx context.Context, userID types.EventStateKeyNID, membershipState MembershipState) ([]types.RoomNID, error)
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// SelectJoinedUsersSetForRooms returns the set of all users in the rooms who are joined to any of these rooms, along with the
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// counts of how many rooms they are joined.
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SelectJoinedUsersSetForRooms(ctx context.Context, roomNIDs []types.RoomNID) (map[types.EventStateKeyNID]int, error)
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SelectKnownUsers(ctx context.Context, userID types.EventStateKeyNID, searchString string, limit int) ([]string, error)
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}
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type Published interface {
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UpsertRoomPublished(ctx context.Context, txn *sql.Tx, roomID string, published bool) (err error)
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SelectPublishedFromRoomID(ctx context.Context, roomID string) (published bool, err error)
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SelectAllPublishedRooms(ctx context.Context, published bool) ([]string, error)
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}
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type RedactionInfo struct {
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// whether this redaction is validated (we have both events)
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Validated bool
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// the ID of the event being redacted
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RedactsEventID string
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// the ID of the redaction event
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RedactionEventID string
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}
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type Redactions interface {
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InsertRedaction(ctx context.Context, txn *sql.Tx, info RedactionInfo) error
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// SelectRedactionInfoByRedactionEventID returns the redaction info for the given redaction event ID, or nil if there is no match.
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SelectRedactionInfoByRedactionEventID(ctx context.Context, txn *sql.Tx, redactionEventID string) (*RedactionInfo, error)
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// SelectRedactionInfoByEventBeingRedacted returns the redaction info for the given redacted event ID, or nil if there is no match.
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SelectRedactionInfoByEventBeingRedacted(ctx context.Context, txn *sql.Tx, eventID string) (*RedactionInfo, error)
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// Mark this redaction event as having been validated. This means we have both sides of the redaction and have
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// successfully redacted the event JSON.
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MarkRedactionValidated(ctx context.Context, txn *sql.Tx, redactionEventID string, validated bool) error
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}
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// StrippedEvent represents a stripped event for returning extracted content values.
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type StrippedEvent struct {
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RoomID string
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EventType string
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StateKey string
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ContentValue string
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}
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// ExtractContentValue from the given state event. For example, given an m.room.name event with:
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// content: { name: "Foo" }
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// this returns "Foo".
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func ExtractContentValue(ev *gomatrixserverlib.HeaderedEvent) string {
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content := ev.Content()
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key := ""
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switch ev.Type() {
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case gomatrixserverlib.MRoomCreate:
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key = "creator"
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case gomatrixserverlib.MRoomCanonicalAlias:
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key = "alias"
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case gomatrixserverlib.MRoomHistoryVisibility:
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key = "history_visibility"
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case gomatrixserverlib.MRoomJoinRules:
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key = "join_rule"
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case gomatrixserverlib.MRoomMember:
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key = "membership"
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case gomatrixserverlib.MRoomName:
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key = "name"
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case "m.room.avatar":
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key = "url"
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case "m.room.topic":
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key = "topic"
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case "m.room.guest_access":
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key = "guest_access"
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}
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result := gjson.GetBytes(content, key)
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if !result.Exists() {
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return ""
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}
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// this returns the empty string if this is not a string type
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return result.Str
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}
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