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Implement /sync limited and read timeline limit from stored filters (#1168)

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* Move filter table to syncapi where it is used

* Implement /sync `limited` and read timeline limit from stored filters

We now fully handle `room.timeline.limit` filters (in-line + stored) and
return the right value for `limited` syncs.

* Update whitelist

* Default to the default timeline limit if it's unset, also strip the extra event correctly

* Update whitelist
This commit is contained in:
Kegsay 2020-06-26 15:34:41 +01:00 • committed by GitHub
parent 164057a3be
commit 1ad7219e4b
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 194 additions and 135 deletions
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21
syncapi/storage/sqlite3/output_room_events_table.go
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@ -311,7 +311,7 @@ func (s *outputRoomEventsStatements) SelectRecentEvents(
ctx context.Context, txn *sql.Tx,
roomID string, r types.Range, limit int,
chronologicalOrder bool, onlySyncEvents bool,
) ([]types.StreamEvent, error) {
) ([]types.StreamEvent, bool, error) {
var stmt *sql.Stmt
if onlySyncEvents {
stmt = sqlutil.TxStmt(txn, s.selectRecentEventsForSyncStmt)
@ -319,14 +319,14 @@ func (s *outputRoomEventsStatements) SelectRecentEvents(
stmt = sqlutil.TxStmt(txn, s.selectRecentEventsStmt)
}
rows, err := stmt.QueryContext(ctx, roomID, r.Low(), r.High(), limit)
rows, err := stmt.QueryContext(ctx, roomID, r.Low(), r.High(), limit+1)
if err != nil {
return nil, err
return nil, false, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectRecentEvents: rows.close() failed")
events, err := rowsToStreamEvents(rows)
if err != nil {
return nil, err
return nil, false, err
}
if chronologicalOrder {
// The events need to be returned from oldest to latest, which isn't
@ -336,7 +336,18 @@ func (s *outputRoomEventsStatements) SelectRecentEvents(
return events[i].StreamPosition < events[j].StreamPosition
})
}
return events, nil
// we queried for 1 more than the limit, so if we returned one more mark limited=true
limited := false
if len(events) > limit {
limited = true
// re-slice the extra (oldest) event out: in chronological order this is the first entry, else the last.
if chronologicalOrder {
events = events[1:]
} else {
events = events[:len(events)-1]
}
}
return events, limited, nil
}
func (s *outputRoomEventsStatements) SelectEarlyEvents(