diff --git a/eth/filters/api.go b/eth/filters/api.go index cc08b442e..22dff6c59 100644 --- a/eth/filters/api.go +++ b/eth/filters/api.go @@ -34,8 +34,9 @@ import ( ) var ( - errInvalidTopic = errors.New("invalid topic(s)") - errFilterNotFound = errors.New("filter not found") + errInvalidTopic = errors.New("invalid topic(s)") + errFilterNotFound = errors.New("filter not found") + errInvalidBlockRange = errors.New("invalid block range params") ) // filter is a helper struct that holds meta information over the filter type @@ -347,6 +348,9 @@ func (api *FilterAPI) GetLogs(ctx context.Context, crit FilterCriteria) ([]*type if crit.ToBlock != nil { end = crit.ToBlock.Int64() } + if begin > 0 && end > 0 && begin > end { + return nil, errInvalidBlockRange + } // Construct the range filter filter = api.sys.NewRangeFilter(begin, end, crit.Addresses, crit.Topics) } diff --git a/eth/filters/filter_system.go b/eth/filters/filter_system.go index 35e396c23..a9b5f2e07 100644 --- a/eth/filters/filter_system.go +++ b/eth/filters/filter_system.go @@ -20,7 +20,6 @@ package filters import ( "context" - "errors" "fmt" "sync" "sync/atomic" @@ -332,7 +331,7 @@ func (es *EventSystem) SubscribeLogs(crit ethereum.FilterQuery, logs chan []*typ if from >= 0 && to == rpc.LatestBlockNumber { return es.subscribeLogs(crit, logs), nil } - return nil, errors.New("invalid from and to block combination: from > to") + return nil, errInvalidBlockRange } // subscribeMinedPendingLogs creates a subscription that returned mined and diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go index f7e5327c5..93cbf0183 100644 --- a/eth/filters/filter_system_test.go +++ b/eth/filters/filter_system_test.go @@ -429,7 +429,10 @@ func TestInvalidLogFilterCreation(t *testing.T) { } } +// TestLogFilterUninstall tests invalid getLogs requests func TestInvalidGetLogsRequest(t *testing.T) { + t.Parallel() + var ( db = rawdb.NewMemoryDatabase() _, sys = newTestFilterSystem(t, db, Config{}) @@ -451,6 +454,21 @@ func TestInvalidGetLogsRequest(t *testing.T) { } } +// TestInvalidGetRangeLogsRequest tests getLogs with invalid block range +func TestInvalidGetRangeLogsRequest(t *testing.T) { + t.Parallel() + + var ( + db = rawdb.NewMemoryDatabase() + _, sys = newTestFilterSystem(t, db, Config{}) + api = NewFilterAPI(sys, false) + ) + + if _, err := api.GetLogs(context.Background(), FilterCriteria{FromBlock: big.NewInt(2), ToBlock: big.NewInt(1)}); err != errInvalidBlockRange { + t.Errorf("Expected Logs for invalid range return error, but got: %v", err) + } +} + // TestLogFilter tests whether log filters match the correct logs that are posted to the event feed. func TestLogFilter(t *testing.T) { t.Parallel()