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Use memberships to determine whether to reset latest events/state on room join (#1047)

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* Track local/remote memberships, re-scope some input stuff

* Check if we're in the room already before resetting latest events/state

* Fix postgres, fix lint

* Review comments
This commit is contained in:
Neil Alexander 2020-05-20 18:03:06 +01:00 • committed by GitHub
parent 6091bf044f
commit f2c07437fe
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GPG key ID: 4AEE18F83AFDEB23
12 changed files with 162 additions and 100 deletions
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53
roomserver/storage/sqlite3/membership_table.go
View file

@ -38,6 +38,7 @@ const membershipSchema = `
sender_nid INTEGER NOT NULL DEFAULT 0,
membership_nid INTEGER NOT NULL DEFAULT 1,
event_nid INTEGER NOT NULL DEFAULT 0,
target_local BOOLEAN NOT NULL DEFAULT false,
UNIQUE (room_nid, target_nid)
);
`
@ -45,8 +46,8 @@ const membershipSchema = `
// Insert a row in to membership table so that it can be locked by the
// SELECT FOR UPDATE
const insertMembershipSQL = "" +
"INSERT INTO roomserver_membership (room_nid, target_nid)" +
" VALUES ($1, $2)" +
"INSERT INTO roomserver_membership (room_nid, target_nid, target_local)" +
" VALUES ($1, $2, $3)" +
" ON CONFLICT DO NOTHING"
const selectMembershipFromRoomAndTargetSQL = "" +
@ -57,10 +58,20 @@ const selectMembershipsFromRoomAndMembershipSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND membership_nid = $2"
const selectLocalMembershipsFromRoomAndMembershipSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND membership_nid = $2" +
" AND target_local = true"
const selectMembershipsFromRoomSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1"
const selectLocalMembershipsFromRoomSQL = "" +
"SELECT event_nid FROM roomserver_membership" +
" WHERE room_nid = $1" +
" AND target_local = true"
const selectMembershipForUpdateSQL = "" +
"SELECT membership_nid FROM roomserver_membership" +
" WHERE room_nid = $1 AND target_nid = $2"
@ -70,12 +81,14 @@ const updateMembershipSQL = "" +
" WHERE room_nid = $4 AND target_nid = $5"
type membershipStatements struct {
insertMembershipStmt *sql.Stmt
selectMembershipForUpdateStmt *sql.Stmt
selectMembershipFromRoomAndTargetStmt *sql.Stmt
selectMembershipsFromRoomAndMembershipStmt *sql.Stmt
selectMembershipsFromRoomStmt *sql.Stmt
updateMembershipStmt *sql.Stmt
insertMembershipStmt *sql.Stmt
selectMembershipForUpdateStmt *sql.Stmt
selectMembershipFromRoomAndTargetStmt *sql.Stmt
selectMembershipsFromRoomAndMembershipStmt *sql.Stmt
selectLocalMembershipsFromRoomAndMembershipStmt *sql.Stmt
selectMembershipsFromRoomStmt *sql.Stmt
selectLocalMembershipsFromRoomStmt *sql.Stmt
updateMembershipStmt *sql.Stmt
}
func (s *membershipStatements) prepare(db *sql.DB) (err error) {
@ -89,7 +102,9 @@ func (s *membershipStatements) prepare(db *sql.DB) (err error) {
{&s.selectMembershipForUpdateStmt, selectMembershipForUpdateSQL},
{&s.selectMembershipFromRoomAndTargetStmt, selectMembershipFromRoomAndTargetSQL},
{&s.selectMembershipsFromRoomAndMembershipStmt, selectMembershipsFromRoomAndMembershipSQL},
{&s.selectLocalMembershipsFromRoomAndMembershipStmt, selectLocalMembershipsFromRoomAndMembershipSQL},
{&s.selectMembershipsFromRoomStmt, selectMembershipsFromRoomSQL},
{&s.selectLocalMembershipsFromRoomStmt, selectLocalMembershipsFromRoomSQL},
{&s.updateMembershipStmt, updateMembershipSQL},
}.prepare(db)
}
@ -97,9 +112,10 @@ func (s *membershipStatements) prepare(db *sql.DB) (err error) {
func (s *membershipStatements) insertMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
localTarget bool,
) error {
stmt := common.TxStmt(txn, s.insertMembershipStmt)
_, err := stmt.ExecContext(ctx, roomNID, targetUserNID)
_, err := stmt.ExecContext(ctx, roomNID, targetUserNID, localTarget)
return err
}
@ -127,9 +143,14 @@ func (s *membershipStatements) selectMembershipFromRoomAndTarget(
func (s *membershipStatements) selectMembershipsFromRoom(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID,
roomNID types.RoomNID, localOnly bool,
) (eventNIDs []types.EventNID, err error) {
selectStmt := common.TxStmt(txn, s.selectMembershipsFromRoomStmt)
var selectStmt *sql.Stmt
if localOnly {
selectStmt = common.TxStmt(txn, s.selectLocalMembershipsFromRoomStmt)
} else {
selectStmt = common.TxStmt(txn, s.selectMembershipsFromRoomStmt)
}
rows, err := selectStmt.QueryContext(ctx, roomNID)
if err != nil {
return nil, err
@ -145,11 +166,17 @@ func (s *membershipStatements) selectMembershipsFromRoom(
}
return
}
func (s *membershipStatements) selectMembershipsFromRoomAndMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, membership membershipState,
roomNID types.RoomNID, membership membershipState, localOnly bool,
) (eventNIDs []types.EventNID, err error) {
stmt := common.TxStmt(txn, s.selectMembershipsFromRoomAndMembershipStmt)
var stmt *sql.Stmt
if localOnly {
stmt = common.TxStmt(txn, s.selectLocalMembershipsFromRoomAndMembershipStmt)
} else {
stmt = common.TxStmt(txn, s.selectMembershipsFromRoomAndMembershipStmt)
}
rows, err := stmt.QueryContext(ctx, roomNID, membership)
if err != nil {
return

17
roomserver/storage/sqlite3/storage.go
View file

@ -569,9 +569,9 @@ func (u *roomRecentEventsUpdater) MarkEventAsSent(eventNID types.EventNID) error
return err
}
func (u *roomRecentEventsUpdater) MembershipUpdater(targetUserNID types.EventStateKeyNID) (mu types.MembershipUpdater, err error) {
func (u *roomRecentEventsUpdater) MembershipUpdater(targetUserNID types.EventStateKeyNID, targetLocal bool) (mu types.MembershipUpdater, err error) {
err = common.WithTransaction(u.d.db, func(txn *sql.Tx) error {
mu, err = u.d.membershipUpdaterTxn(u.ctx, txn, u.roomNID, targetUserNID)
mu, err = u.d.membershipUpdaterTxn(u.ctx, txn, u.roomNID, targetUserNID, targetLocal)
return err
})
return
@ -680,7 +680,7 @@ func (d *Database) StateEntriesForTuples(
// MembershipUpdater implements input.RoomEventDatabase
func (d *Database) MembershipUpdater(
ctx context.Context, roomID, targetUserID string,
roomVersion gomatrixserverlib.RoomVersion,
targetLocal bool, roomVersion gomatrixserverlib.RoomVersion,
) (updater types.MembershipUpdater, err error) {
var txn *sql.Tx
txn, err = d.db.Begin()
@ -716,7 +716,7 @@ func (d *Database) MembershipUpdater(
return nil, err
}
updater, err = d.membershipUpdaterTxn(ctx, txn, roomNID, targetUserNID)
updater, err = d.membershipUpdaterTxn(ctx, txn, roomNID, targetUserNID, targetLocal)
if err != nil {
return nil, err
}
@ -738,9 +738,10 @@ func (d *Database) membershipUpdaterTxn(
txn *sql.Tx,
roomNID types.RoomNID,
targetUserNID types.EventStateKeyNID,
targetLocal bool,
) (types.MembershipUpdater, error) {
if err := d.statements.insertMembership(ctx, txn, roomNID, targetUserNID); err != nil {
if err := d.statements.insertMembership(ctx, txn, roomNID, targetUserNID, targetLocal); err != nil {
return nil, err
}
@ -896,17 +897,17 @@ func (d *Database) GetMembership(
// GetMembershipEventNIDsForRoom implements query.RoomserverQueryAPIDB
func (d *Database) GetMembershipEventNIDsForRoom(
ctx context.Context, roomNID types.RoomNID, joinOnly bool,
ctx context.Context, roomNID types.RoomNID, joinOnly bool, localOnly bool,
) (eventNIDs []types.EventNID, err error) {
err = common.WithTransaction(d.db, func(txn *sql.Tx) error {
if joinOnly {
eventNIDs, err = d.statements.selectMembershipsFromRoomAndMembership(
ctx, txn, roomNID, membershipStateJoin,
ctx, txn, roomNID, membershipStateJoin, localOnly,
)
return nil
}
eventNIDs, err = d.statements.selectMembershipsFromRoom(ctx, txn, roomNID)
eventNIDs, err = d.statements.selectMembershipsFromRoom(ctx, txn, roomNID, localOnly)
return nil
})
return