cerc-io/lotus
16
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 27 Wiki Activity

Implement EthGetLogs

Browse Source
This commit is contained in:
Ian Davis 2022-11-15 14:10:48 +00:00
parent 0e8dd9efc5
commit 0d9c474a59
1 changed files with 48 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
node/impl/full/eth.go
View File

@ -870,9 +870,23 @@ func (a *EthModule) newEthTxFromFilecoinMessageLookup(ctx context.Context, msgLo
return tx, nil
}
func (e *EthEvent) EthGetLogs(ctx context.Context, filter *api.EthFilterSpec) (*api.EthFilterResult, error) {
// TODO: implement EthGetLogs
func (e *EthEvent) EthGetLogs(ctx context.Context, filterSpec *api.EthFilterSpec) (*api.EthFilterResult, error) {
if e.EventFilterManager == nil {
return nil, api.ErrNotSupported
}
// Create a temporary filter
f, err := e.installEthFilterSpec(ctx, filterSpec)
if err != nil {
return nil, err
}
ces := f.TakeCollectedEvents(ctx)
if err := e.uninstallFilter(ctx, f); err != nil {
return nil, err
}
return ethFilterResultFromEvents(ces)
}
func (e *EthEvent) EthGetFilterChanges(ctx context.Context, id api.EthFilterID) (*api.EthFilterResult, error) {
@ -915,11 +929,7 @@ func (e *EthEvent) EthGetFilterLogs(ctx context.Context, id api.EthFilterID) (*a
return nil, xerrors.Errorf("wrong filter type")
}
func (e *EthEvent) EthNewFilter(ctx context.Context, filter *api.EthFilterSpec) (api.EthFilterID, error) {
if e.FilterStore == nil || e.EventFilterManager == nil {
return "", api.ErrNotSupported
}
func (e *EthEvent) installEthFilterSpec(ctx context.Context, filterSpec *api.EthFilterSpec) (*filter.EventFilter, error) {
var (
minHeight abi.ChainEpoch
maxHeight abi.ChainEpoch
@ -928,39 +938,39 @@ func (e *EthEvent) EthNewFilter(ctx context.Context, filter *api.EthFilterSpec)
keys = map[string][][]byte{}
)
if filter.BlockHash != nil {
if filter.FromBlock != nil || filter.ToBlock != nil {
return "", xerrors.Errorf("must not specify block hash and from/to block")
if filterSpec.BlockHash != nil {
if filterSpec.FromBlock != nil || filterSpec.ToBlock != nil {
return nil, xerrors.Errorf("must not specify block hash and from/to block")
}
// TODO: derive a tipset hash from eth hash - might need to push this down into the EventFilterManager
} else {
if filter.FromBlock == nil || *filter.FromBlock == "latest" {
if filterSpec.FromBlock == nil || *filterSpec.FromBlock == "latest" {
ts := e.Chain.GetHeaviestTipSet()
minHeight = ts.Height()
} else if *filter.FromBlock == "earliest" {
} else if *filterSpec.FromBlock == "earliest" {
minHeight = 0
} else if *filter.FromBlock == "pending" {
return "", api.ErrNotSupported
} else if *filterSpec.FromBlock == "pending" {
return nil, api.ErrNotSupported
} else {
epoch, err := strconv.ParseUint(*filter.FromBlock, 10, 64)
epoch, err := strconv.ParseUint(*filterSpec.FromBlock, 10, 64)
if err != nil {
return "", xerrors.Errorf("invalid epoch")
return nil, xerrors.Errorf("invalid epoch")
}
minHeight = abi.ChainEpoch(epoch)
}
if filter.ToBlock == nil || *filter.ToBlock == "latest" {
if filterSpec.ToBlock == nil || *filterSpec.ToBlock == "latest" {
// here latest means the latest at the time
maxHeight = -1
} else if *filter.ToBlock == "earliest" {
} else if *filterSpec.ToBlock == "earliest" {
maxHeight = 0
} else if *filter.ToBlock == "pending" {
return "", api.ErrNotSupported
} else if *filterSpec.ToBlock == "pending" {
return nil, api.ErrNotSupported
} else {
epoch, err := strconv.ParseUint(*filter.ToBlock, 10, 64)
epoch, err := strconv.ParseUint(*filterSpec.ToBlock, 10, 64)
if err != nil {
return "", xerrors.Errorf("invalid epoch")
return nil, xerrors.Errorf("invalid epoch")
}
maxHeight = abi.ChainEpoch(epoch)
}
@ -970,33 +980,33 @@ func (e *EthEvent) EthNewFilter(ctx context.Context, filter *api.EthFilterSpec)
// Here the client is looking for events between the head and some future height
ts := e.Chain.GetHeaviestTipSet()
if maxHeight-ts.Height() > e.MaxFilterHeightRange {
return "", xerrors.Errorf("invalid epoch range")
return nil, xerrors.Errorf("invalid epoch range")
}
} else if minHeight >= 0 && maxHeight == -1 {
// Here the client is looking for events between some time in the past and the current head
ts := e.Chain.GetHeaviestTipSet()
if ts.Height()-minHeight > e.MaxFilterHeightRange {
return "", xerrors.Errorf("invalid epoch range")
return nil, xerrors.Errorf("invalid epoch range")
}
} else if minHeight >= 0 && maxHeight >= 0 {
if minHeight > maxHeight || maxHeight-minHeight > e.MaxFilterHeightRange {
return "", xerrors.Errorf("invalid epoch range")
return nil, xerrors.Errorf("invalid epoch range")
}
}
}
// Convert all addresses to filecoin f4 addresses
for _, ea := range filter.Address {
for _, ea := range filterSpec.Address {
a, err := ea.ToFilecoinAddress()
if err != nil {
return "", xerrors.Errorf("invalid address %x", ea)
return nil, xerrors.Errorf("invalid address %x", ea)
}
addresses = append(addresses, a)
}
for idx, vals := range filter.Topics {
for idx, vals := range filterSpec.Topics {
// Ethereum topics are emitted using `LOG{0..4}` opcodes resulting in topics1..4
key := fmt.Sprintf("topic%d", idx+1)
keyvals := make([][]byte, len(vals))
@ -1006,7 +1016,15 @@ func (e *EthEvent) EthNewFilter(ctx context.Context, filter *api.EthFilterSpec)
keys[key] = keyvals
}
f, err := e.EventFilterManager.Install(ctx, minHeight, maxHeight, tipsetCid, addresses, keys)
return e.EventFilterManager.Install(ctx, minHeight, maxHeight, tipsetCid, addresses, keys)
}
func (e *EthEvent) EthNewFilter(ctx context.Context, filterSpec *api.EthFilterSpec) (api.EthFilterID, error) {
if e.FilterStore == nil || e.EventFilterManager == nil {
return "", api.ErrNotSupported
}
f, err := e.installEthFilterSpec(ctx, filterSpec)
if err != nil {
return "", err
}