2020-05-28 12:15:21 +02:00
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package shared
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import (
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"context"
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"database/sql"
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2020-08-19 16:38:27 +02:00
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"fmt"
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2020-05-28 12:15:21 +02:00
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"github.com/matrix-org/dendrite/roomserver/storage/tables"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/gomatrixserverlib"
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)
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2020-08-19 14:24:54 +02:00
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type MembershipUpdater struct {
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2020-05-28 12:15:21 +02:00
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transaction
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d *Database
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roomNID types.RoomNID
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targetUserNID types.EventStateKeyNID
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membership tables.MembershipState
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}
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func NewMembershipUpdater(
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ctx context.Context, d *Database, txn *sql.Tx, roomID, targetUserID string,
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targetLocal bool, roomVersion gomatrixserverlib.RoomVersion,
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) (*MembershipUpdater, error) {
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var roomNID types.RoomNID
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var targetUserNID types.EventStateKeyNID
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var err error
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err = d.Writer.Do(d.DB, txn, func(txn *sql.Tx) error {
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roomNID, err = d.assignRoomNID(ctx, txn, roomID, roomVersion)
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if err != nil {
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return err
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}
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targetUserNID, err = d.assignStateKeyNID(ctx, txn, targetUserID)
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if err != nil {
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return err
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}
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return nil
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})
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2020-05-28 12:15:21 +02:00
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if err != nil {
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return nil, err
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}
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2020-08-19 14:24:54 +02:00
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return d.membershipUpdaterTxn(ctx, txn, roomNID, targetUserNID, targetLocal)
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}
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func (d *Database) membershipUpdaterTxn(
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ctx context.Context,
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txn *sql.Tx,
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roomNID types.RoomNID,
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targetUserNID types.EventStateKeyNID,
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targetLocal bool,
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) (*MembershipUpdater, error) {
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err := d.Writer.Do(d.DB, txn, func(txn *sql.Tx) error {
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if err := d.MembershipTable.InsertMembership(ctx, txn, roomNID, targetUserNID, targetLocal); err != nil {
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return fmt.Errorf("d.MembershipTable.InsertMembership: %w", err)
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}
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("u.d.Writer.Do: %w", err)
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}
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membership, err := d.MembershipTable.SelectMembershipForUpdate(ctx, txn, roomNID, targetUserNID)
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if err != nil {
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return nil, err
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}
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return &MembershipUpdater{
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transaction{ctx, txn}, d, roomNID, targetUserNID, membership,
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}, nil
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}
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// IsInvite implements types.MembershipUpdater
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func (u *MembershipUpdater) IsInvite() bool {
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return u.membership == tables.MembershipStateInvite
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}
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// IsJoin implements types.MembershipUpdater
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func (u *MembershipUpdater) IsJoin() bool {
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return u.membership == tables.MembershipStateJoin
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}
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// IsLeave implements types.MembershipUpdater
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func (u *MembershipUpdater) IsLeave() bool {
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return u.membership == tables.MembershipStateLeaveOrBan
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}
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// SetToInvite implements types.MembershipUpdater
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func (u *MembershipUpdater) SetToInvite(event gomatrixserverlib.Event) (bool, error) {
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var inserted bool
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err := u.d.Writer.Do(u.d.DB, u.txn, func(txn *sql.Tx) error {
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senderUserNID, err := u.d.assignStateKeyNID(u.ctx, u.txn, event.Sender())
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if err != nil {
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return fmt.Errorf("u.d.AssignStateKeyNID: %w", err)
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}
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inserted, err = u.d.InvitesTable.InsertInviteEvent(
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u.ctx, u.txn, event.EventID(), u.roomNID, u.targetUserNID, senderUserNID, event.JSON(),
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)
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if err != nil {
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return fmt.Errorf("u.d.InvitesTable.InsertInviteEvent: %w", err)
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}
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if u.membership != tables.MembershipStateInvite {
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if err = u.d.MembershipTable.UpdateMembership(
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u.ctx, u.txn, u.roomNID, u.targetUserNID, senderUserNID, tables.MembershipStateInvite, 0,
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); err != nil {
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return fmt.Errorf("u.d.MembershipTable.UpdateMembership: %w", err)
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}
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}
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return nil
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})
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return inserted, err
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}
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// SetToJoin implements types.MembershipUpdater
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func (u *MembershipUpdater) SetToJoin(senderUserID string, eventID string, isUpdate bool) ([]string, error) {
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var inviteEventIDs []string
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err := u.d.Writer.Do(u.d.DB, u.txn, func(txn *sql.Tx) error {
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senderUserNID, err := u.d.assignStateKeyNID(u.ctx, u.txn, senderUserID)
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if err != nil {
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return fmt.Errorf("u.d.AssignStateKeyNID: %w", err)
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}
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// If this is a join event update, there is no invite to update
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if !isUpdate {
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inviteEventIDs, err = u.d.InvitesTable.UpdateInviteRetired(
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u.ctx, u.txn, u.roomNID, u.targetUserNID,
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)
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if err != nil {
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return fmt.Errorf("u.d.InvitesTables.UpdateInviteRetired: %w", err)
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}
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}
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2020-09-08 18:48:07 +02:00
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// Look up the NID of the new join event
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nIDs, err := u.d.EventNIDs(u.ctx, []string{eventID})
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if err != nil {
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return fmt.Errorf("u.d.EventNIDs: %w", err)
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2020-05-28 12:15:21 +02:00
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}
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2020-09-08 18:48:07 +02:00
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if u.membership != tables.MembershipStateJoin || isUpdate {
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if err = u.d.MembershipTable.UpdateMembership(
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u.ctx, u.txn, u.roomNID, u.targetUserNID, senderUserNID,
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tables.MembershipStateJoin, nIDs[eventID],
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); err != nil {
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return fmt.Errorf("u.d.MembershipTable.UpdateMembership: %w", err)
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}
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}
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return nil
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})
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return inviteEventIDs, err
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}
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// SetToLeave implements types.MembershipUpdater
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func (u *MembershipUpdater) SetToLeave(senderUserID string, eventID string) ([]string, error) {
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var inviteEventIDs []string
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2020-09-08 18:48:07 +02:00
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err := u.d.Writer.Do(u.d.DB, u.txn, func(txn *sql.Tx) error {
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senderUserNID, err := u.d.assignStateKeyNID(u.ctx, u.txn, senderUserID)
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if err != nil {
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return fmt.Errorf("u.d.AssignStateKeyNID: %w", err)
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}
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inviteEventIDs, err = u.d.InvitesTable.UpdateInviteRetired(
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u.ctx, u.txn, u.roomNID, u.targetUserNID,
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)
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if err != nil {
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return fmt.Errorf("u.d.InvitesTable.updateInviteRetired: %w", err)
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}
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// Look up the NID of the new leave event
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nIDs, err := u.d.EventNIDs(u.ctx, []string{eventID})
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if err != nil {
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return fmt.Errorf("u.d.EventNIDs: %w", err)
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}
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2020-05-28 12:15:21 +02:00
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2020-09-08 18:48:07 +02:00
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if u.membership != tables.MembershipStateLeaveOrBan {
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if err = u.d.MembershipTable.UpdateMembership(
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u.ctx, u.txn, u.roomNID, u.targetUserNID, senderUserNID,
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tables.MembershipStateLeaveOrBan, nIDs[eventID],
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); err != nil {
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return fmt.Errorf("u.d.MembershipTable.UpdateMembership: %w", err)
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}
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2020-05-28 12:15:21 +02:00
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}
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2020-09-08 18:48:07 +02:00
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return nil
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})
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return inviteEventIDs, err
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2020-05-28 12:15:21 +02:00
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}
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