mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-27 05:38:55 +00:00
236a5c4167
* ds cleanup * fix Co-authored-by: Radosław Kapka <rkapka@wp.pl> Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
587 lines
20 KiB
Go
587 lines
20 KiB
Go
package beacon
|
|
|
|
import (
|
|
"context"
|
|
"strconv"
|
|
|
|
"github.com/prysmaticlabs/prysm/api/pagination"
|
|
"github.com/prysmaticlabs/prysm/async/event"
|
|
"github.com/prysmaticlabs/prysm/beacon-chain/core/blocks"
|
|
"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
|
|
blockfeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/block"
|
|
statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
|
|
"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
|
|
"github.com/prysmaticlabs/prysm/beacon-chain/db/filters"
|
|
"github.com/prysmaticlabs/prysm/cmd"
|
|
"github.com/prysmaticlabs/prysm/config/params"
|
|
"github.com/prysmaticlabs/prysm/encoding/bytesutil"
|
|
ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
|
|
"github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1/block"
|
|
"github.com/prysmaticlabs/prysm/runtime/version"
|
|
"github.com/prysmaticlabs/prysm/time/slots"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/status"
|
|
"google.golang.org/protobuf/types/known/emptypb"
|
|
)
|
|
|
|
// blockContainer represents an instance of
|
|
// block along with its relevant metadata.
|
|
type blockContainer struct {
|
|
blk block.SignedBeaconBlock
|
|
root [32]byte
|
|
isCanonical bool
|
|
}
|
|
|
|
// ListBlocks retrieves blocks by root, slot, or epoch.
|
|
//
|
|
// The server may return multiple blocks in the case that a slot or epoch is
|
|
// provided as the filter criteria. The server may return an empty list when
|
|
// no blocks in their database match the filter criteria. This RPC should
|
|
// not return NOT_FOUND. Only one filter criteria should be used.
|
|
func (bs *Server) ListBlocks(
|
|
ctx context.Context, req *ethpb.ListBlocksRequest,
|
|
) (*ethpb.ListBlocksResponse, error) {
|
|
if int(req.PageSize) > cmd.Get().MaxRPCPageSize {
|
|
return nil, status.Errorf(codes.InvalidArgument, "Requested page size %d can not be greater than max size %d",
|
|
req.PageSize, cmd.Get().MaxRPCPageSize)
|
|
}
|
|
|
|
switch q := req.QueryFilter.(type) {
|
|
case *ethpb.ListBlocksRequest_Epoch:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForEpoch(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
blkContainers, err := convertToProto(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ðpb.ListBlocksResponse{
|
|
BlockContainers: blkContainers,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
case *ethpb.ListBlocksRequest_Root:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForRoot(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
blkContainers, err := convertToProto(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ðpb.ListBlocksResponse{
|
|
BlockContainers: blkContainers,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
|
|
case *ethpb.ListBlocksRequest_Slot:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForSlot(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
blkContainers, err := convertToProto(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ðpb.ListBlocksResponse{
|
|
BlockContainers: blkContainers,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
case *ethpb.ListBlocksRequest_Genesis:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForGenesis(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
blkContainers, err := convertToProto(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ðpb.ListBlocksResponse{
|
|
BlockContainers: blkContainers,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
}
|
|
|
|
return nil, status.Error(codes.InvalidArgument, "Must specify a filter criteria for fetching blocks")
|
|
}
|
|
|
|
// ListBeaconBlocks retrieves blocks by root, slot, or epoch.
|
|
//
|
|
// The server may return multiple blocks in the case that a slot or epoch is
|
|
// provided as the filter criteria. The server may return an empty list when
|
|
// no blocks in their database match the filter criteria. This RPC should
|
|
// not return NOT_FOUND. Only one filter criteria should be used.
|
|
func (bs *Server) ListBeaconBlocks(
|
|
ctx context.Context, req *ethpb.ListBlocksRequest,
|
|
) (*ethpb.ListBeaconBlocksResponse, error) {
|
|
if int(req.PageSize) > cmd.Get().MaxRPCPageSize {
|
|
return nil, status.Errorf(codes.InvalidArgument, "Requested page size %d can not be greater than max size %d",
|
|
req.PageSize, cmd.Get().MaxRPCPageSize)
|
|
}
|
|
|
|
switch q := req.QueryFilter.(type) {
|
|
case *ethpb.ListBlocksRequest_Epoch:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForEpoch(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
altCtrs, err := convertFromV1Containers(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ðpb.ListBeaconBlocksResponse{
|
|
BlockContainers: altCtrs,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
case *ethpb.ListBlocksRequest_Root:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForRoot(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
altCtrs, err := convertFromV1Containers(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ðpb.ListBeaconBlocksResponse{
|
|
BlockContainers: altCtrs,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
|
|
case *ethpb.ListBlocksRequest_Slot:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForSlot(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
altCtrs, err := convertFromV1Containers(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ðpb.ListBeaconBlocksResponse{
|
|
BlockContainers: altCtrs,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
case *ethpb.ListBlocksRequest_Genesis:
|
|
ctrs, numBlks, nextPageToken, err := bs.listBlocksForGenesis(ctx, req, q)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
altCtrs, err := convertFromV1Containers(ctrs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ðpb.ListBeaconBlocksResponse{
|
|
BlockContainers: altCtrs,
|
|
TotalSize: int32(numBlks),
|
|
NextPageToken: nextPageToken,
|
|
}, nil
|
|
}
|
|
|
|
return nil, status.Error(codes.InvalidArgument, "Must specify a filter criteria for fetching blocks")
|
|
}
|
|
|
|
func convertFromV1Containers(ctrs []blockContainer) ([]*ethpb.BeaconBlockContainer, error) {
|
|
protoCtrs := make([]*ethpb.BeaconBlockContainer, len(ctrs))
|
|
var err error
|
|
for i, c := range ctrs {
|
|
protoCtrs[i], err = convertToBlockContainer(c.blk, c.root, c.isCanonical)
|
|
if err != nil {
|
|
return nil, status.Errorf(codes.Internal, "Could not get block container: %v", err)
|
|
}
|
|
}
|
|
return protoCtrs, nil
|
|
}
|
|
|
|
func convertToBlockContainer(blk block.SignedBeaconBlock, root [32]byte, isCanonical bool) (*ethpb.BeaconBlockContainer, error) {
|
|
ctr := ðpb.BeaconBlockContainer{
|
|
BlockRoot: root[:],
|
|
Canonical: isCanonical,
|
|
}
|
|
|
|
switch blk.Version() {
|
|
case version.Phase0:
|
|
rBlk, err := blk.PbPhase0Block()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ctr.Block = ðpb.BeaconBlockContainer_Phase0Block{Phase0Block: rBlk}
|
|
case version.Altair:
|
|
rBlk, err := blk.PbAltairBlock()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ctr.Block = ðpb.BeaconBlockContainer_AltairBlock{AltairBlock: rBlk}
|
|
}
|
|
return ctr, nil
|
|
}
|
|
|
|
// listBlocksForEpoch retrieves all blocks for the provided epoch.
|
|
func (bs *Server) listBlocksForEpoch(ctx context.Context, req *ethpb.ListBlocksRequest, q *ethpb.ListBlocksRequest_Epoch) ([]blockContainer, int, string, error) {
|
|
blks, _, err := bs.BeaconDB.Blocks(ctx, filters.NewFilter().SetStartEpoch(q.Epoch).SetEndEpoch(q.Epoch))
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not get blocks: %v", err)
|
|
}
|
|
|
|
numBlks := len(blks)
|
|
if len(blks) == 0 {
|
|
return []blockContainer{}, numBlks, strconv.Itoa(0), nil
|
|
}
|
|
|
|
start, end, nextPageToken, err := pagination.StartAndEndPage(req.PageToken, int(req.PageSize), numBlks)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not paginate blocks: %v", err)
|
|
}
|
|
|
|
returnedBlks := blks[start:end]
|
|
containers := make([]blockContainer, len(returnedBlks))
|
|
for i, b := range returnedBlks {
|
|
root, err := b.Block().HashTreeRoot()
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), err
|
|
}
|
|
canonical, err := bs.CanonicalFetcher.IsCanonical(ctx, root)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not determine if block is canonical: %v", err)
|
|
}
|
|
containers[i] = blockContainer{
|
|
blk: b,
|
|
root: root,
|
|
isCanonical: canonical,
|
|
}
|
|
}
|
|
|
|
return containers, numBlks, nextPageToken, nil
|
|
}
|
|
|
|
// listBlocksForRoot retrieves the block for the provided root.
|
|
func (bs *Server) listBlocksForRoot(ctx context.Context, _ *ethpb.ListBlocksRequest, q *ethpb.ListBlocksRequest_Root) ([]blockContainer, int, string, error) {
|
|
blk, err := bs.BeaconDB.Block(ctx, bytesutil.ToBytes32(q.Root))
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not retrieve block: %v", err)
|
|
}
|
|
if blk == nil || blk.IsNil() {
|
|
return []blockContainer{}, 0, strconv.Itoa(0), nil
|
|
}
|
|
root, err := blk.Block().HashTreeRoot()
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not determine block root: %v", err)
|
|
}
|
|
canonical, err := bs.CanonicalFetcher.IsCanonical(ctx, root)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not determine if block is canonical: %v", err)
|
|
}
|
|
return []blockContainer{{
|
|
blk: blk,
|
|
root: root,
|
|
isCanonical: canonical,
|
|
}}, 1, strconv.Itoa(0), nil
|
|
}
|
|
|
|
// listBlocksForSlot retrieves all blocks for the provided slot.
|
|
func (bs *Server) listBlocksForSlot(ctx context.Context, req *ethpb.ListBlocksRequest, q *ethpb.ListBlocksRequest_Slot) ([]blockContainer, int, string, error) {
|
|
hasBlocks, blks, err := bs.BeaconDB.BlocksBySlot(ctx, q.Slot)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not retrieve blocks for slot %d: %v", q.Slot, err)
|
|
}
|
|
if !hasBlocks {
|
|
return []blockContainer{}, 0, strconv.Itoa(0), nil
|
|
}
|
|
|
|
numBlks := len(blks)
|
|
|
|
start, end, nextPageToken, err := pagination.StartAndEndPage(req.PageToken, int(req.PageSize), numBlks)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not paginate blocks: %v", err)
|
|
}
|
|
|
|
returnedBlks := blks[start:end]
|
|
containers := make([]blockContainer, len(returnedBlks))
|
|
for i, b := range returnedBlks {
|
|
root, err := b.Block().HashTreeRoot()
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not determine block root: %v", err)
|
|
}
|
|
canonical, err := bs.CanonicalFetcher.IsCanonical(ctx, root)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not determine if block is canonical: %v", err)
|
|
}
|
|
containers[i] = blockContainer{
|
|
blk: b,
|
|
root: root,
|
|
isCanonical: canonical,
|
|
}
|
|
}
|
|
return containers, numBlks, nextPageToken, nil
|
|
}
|
|
|
|
// listBlocksForGenesis retrieves the genesis block.
|
|
func (bs *Server) listBlocksForGenesis(ctx context.Context, _ *ethpb.ListBlocksRequest, _ *ethpb.ListBlocksRequest_Genesis) ([]blockContainer, int, string, error) {
|
|
genBlk, err := bs.BeaconDB.GenesisBlock(ctx)
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not retrieve blocks for genesis slot: %v", err)
|
|
}
|
|
if err := helpers.BeaconBlockIsNil(genBlk); err != nil {
|
|
return []blockContainer{}, 0, strconv.Itoa(0), status.Errorf(codes.NotFound, "Could not find genesis block: %v", err)
|
|
}
|
|
root, err := genBlk.Block().HashTreeRoot()
|
|
if err != nil {
|
|
return nil, 0, strconv.Itoa(0), status.Errorf(codes.Internal, "Could not determine block root: %v", err)
|
|
}
|
|
return []blockContainer{{
|
|
blk: genBlk,
|
|
root: root,
|
|
isCanonical: true,
|
|
}}, 1, strconv.Itoa(0), nil
|
|
}
|
|
|
|
func convertToProto(ctrs []blockContainer) ([]*ethpb.BeaconBlockContainer, error) {
|
|
protoCtrs := make([]*ethpb.BeaconBlockContainer, len(ctrs))
|
|
for i, c := range ctrs {
|
|
phBlk, err := c.blk.PbPhase0Block()
|
|
if err != nil {
|
|
return nil, status.Errorf(codes.Internal, "Could not get phase 0 block: %v", err)
|
|
}
|
|
copiedRoot := c.root
|
|
protoCtrs[i] = ðpb.BeaconBlockContainer{
|
|
Block: ðpb.BeaconBlockContainer_Phase0Block{Phase0Block: phBlk},
|
|
BlockRoot: copiedRoot[:],
|
|
Canonical: c.isCanonical,
|
|
}
|
|
}
|
|
return protoCtrs, nil
|
|
}
|
|
|
|
// GetChainHead retrieves information about the head of the beacon chain from
|
|
// the view of the beacon chain node.
|
|
//
|
|
// This includes the head block slot and root as well as information about
|
|
// the most recent finalized and justified slots.
|
|
func (bs *Server) GetChainHead(ctx context.Context, _ *emptypb.Empty) (*ethpb.ChainHead, error) {
|
|
return bs.chainHeadRetrieval(ctx)
|
|
}
|
|
|
|
// StreamBlocks to clients every single time a block is received by the beacon node.
|
|
func (bs *Server) StreamBlocks(req *ethpb.StreamBlocksRequest, stream ethpb.BeaconChain_StreamBlocksServer) error {
|
|
blocksChannel := make(chan *feed.Event, 1)
|
|
var blockSub event.Subscription
|
|
if req.VerifiedOnly {
|
|
blockSub = bs.StateNotifier.StateFeed().Subscribe(blocksChannel)
|
|
} else {
|
|
blockSub = bs.BlockNotifier.BlockFeed().Subscribe(blocksChannel)
|
|
}
|
|
defer blockSub.Unsubscribe()
|
|
|
|
for {
|
|
select {
|
|
case blockEvent := <-blocksChannel:
|
|
if req.VerifiedOnly {
|
|
if blockEvent.Type == statefeed.BlockProcessed {
|
|
data, ok := blockEvent.Data.(*statefeed.BlockProcessedData)
|
|
if !ok || data == nil {
|
|
continue
|
|
}
|
|
phBlk, err := data.SignedBlock.PbPhase0Block()
|
|
if err != nil {
|
|
log.Error(err)
|
|
continue
|
|
}
|
|
if err := stream.Send(phBlk); err != nil {
|
|
return status.Errorf(codes.Unavailable, "Could not send over stream: %v", err)
|
|
}
|
|
}
|
|
} else {
|
|
if blockEvent.Type == blockfeed.ReceivedBlock {
|
|
data, ok := blockEvent.Data.(*blockfeed.ReceivedBlockData)
|
|
if !ok {
|
|
// Got bad data over the stream.
|
|
continue
|
|
}
|
|
if data.SignedBlock == nil {
|
|
// One nil block shouldn't stop the stream.
|
|
continue
|
|
}
|
|
headState, err := bs.HeadFetcher.HeadState(bs.Ctx)
|
|
if err != nil {
|
|
log.WithError(err).WithField("blockSlot", data.SignedBlock.Block().Slot()).Error("Could not get head state")
|
|
continue
|
|
}
|
|
signed := data.SignedBlock
|
|
if err := blocks.VerifyBlockSignature(headState, signed.Block().ProposerIndex(), signed.Signature(), signed.Block().HashTreeRoot); err != nil {
|
|
log.WithError(err).WithField("blockSlot", data.SignedBlock.Block().Slot()).Error("Could not verify block signature")
|
|
continue
|
|
}
|
|
phBlk, err := signed.PbPhase0Block()
|
|
if err != nil {
|
|
log.Error(err)
|
|
continue
|
|
}
|
|
if err := stream.Send(phBlk); err != nil {
|
|
return status.Errorf(codes.Unavailable, "Could not send over stream: %v", err)
|
|
}
|
|
}
|
|
}
|
|
case <-blockSub.Err():
|
|
return status.Error(codes.Aborted, "Subscriber closed, exiting goroutine")
|
|
case <-bs.Ctx.Done():
|
|
return status.Error(codes.Canceled, "Context canceled")
|
|
case <-stream.Context().Done():
|
|
return status.Error(codes.Canceled, "Context canceled")
|
|
}
|
|
}
|
|
}
|
|
|
|
// StreamChainHead to clients every single time the head block and state of the chain change.
|
|
func (bs *Server) StreamChainHead(_ *emptypb.Empty, stream ethpb.BeaconChain_StreamChainHeadServer) error {
|
|
stateChannel := make(chan *feed.Event, 1)
|
|
stateSub := bs.StateNotifier.StateFeed().Subscribe(stateChannel)
|
|
defer stateSub.Unsubscribe()
|
|
for {
|
|
select {
|
|
case stateEvent := <-stateChannel:
|
|
if stateEvent.Type == statefeed.BlockProcessed {
|
|
res, err := bs.chainHeadRetrieval(stream.Context())
|
|
if err != nil {
|
|
return status.Errorf(codes.Internal, "Could not retrieve chain head: %v", err)
|
|
}
|
|
if err := stream.Send(res); err != nil {
|
|
return status.Errorf(codes.Unavailable, "Could not send over stream: %v", err)
|
|
}
|
|
}
|
|
case <-stateSub.Err():
|
|
return status.Error(codes.Aborted, "Subscriber closed, exiting goroutine")
|
|
case <-bs.Ctx.Done():
|
|
return status.Error(codes.Canceled, "Context canceled")
|
|
case <-stream.Context().Done():
|
|
return status.Error(codes.Canceled, "Context canceled")
|
|
}
|
|
}
|
|
}
|
|
|
|
// Retrieve chain head information from the DB and the current beacon state.
|
|
func (bs *Server) chainHeadRetrieval(ctx context.Context) (*ethpb.ChainHead, error) {
|
|
headBlock, err := bs.HeadFetcher.HeadBlock(ctx)
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get head block")
|
|
}
|
|
if err := helpers.BeaconBlockIsNil(headBlock); err != nil {
|
|
return nil, status.Errorf(codes.NotFound, "Head block of chain was nil: %v", err)
|
|
}
|
|
headBlockRoot, err := headBlock.Block().HashTreeRoot()
|
|
if err != nil {
|
|
return nil, status.Errorf(codes.Internal, "Could not get head block root: %v", err)
|
|
}
|
|
|
|
isGenesis := func(cp *ethpb.Checkpoint) bool {
|
|
return bytesutil.ToBytes32(cp.Root) == params.BeaconConfig().ZeroHash && cp.Epoch == 0
|
|
}
|
|
// Retrieve genesis block in the event we have genesis checkpoints.
|
|
genBlock, err := bs.BeaconDB.GenesisBlock(ctx)
|
|
if err != nil || genBlock == nil || genBlock.IsNil() || genBlock.Block().IsNil() {
|
|
return nil, status.Error(codes.Internal, "Could not get genesis block")
|
|
}
|
|
|
|
finalizedCheckpoint := bs.FinalizationFetcher.FinalizedCheckpt()
|
|
if !isGenesis(finalizedCheckpoint) {
|
|
b, err := bs.BeaconDB.Block(ctx, bytesutil.ToBytes32(finalizedCheckpoint.Root))
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get finalized block")
|
|
}
|
|
if err := helpers.BeaconBlockIsNil(b); err != nil {
|
|
return nil, status.Errorf(codes.Internal, "Could not get finalized block: %v", err)
|
|
}
|
|
}
|
|
|
|
justifiedCheckpoint := bs.FinalizationFetcher.CurrentJustifiedCheckpt()
|
|
if !isGenesis(justifiedCheckpoint) {
|
|
b, err := bs.BeaconDB.Block(ctx, bytesutil.ToBytes32(justifiedCheckpoint.Root))
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get justified block")
|
|
}
|
|
if err := helpers.BeaconBlockIsNil(b); err != nil {
|
|
return nil, status.Errorf(codes.Internal, "Could not get justified block: %v", err)
|
|
}
|
|
}
|
|
|
|
prevJustifiedCheckpoint := bs.FinalizationFetcher.PreviousJustifiedCheckpt()
|
|
if !isGenesis(prevJustifiedCheckpoint) {
|
|
b, err := bs.BeaconDB.Block(ctx, bytesutil.ToBytes32(prevJustifiedCheckpoint.Root))
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get prev justified block")
|
|
}
|
|
if err := helpers.BeaconBlockIsNil(b); err != nil {
|
|
return nil, status.Errorf(codes.Internal, "Could not get prev justified block: %v", err)
|
|
}
|
|
}
|
|
|
|
fSlot, err := slots.EpochStart(finalizedCheckpoint.Epoch)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
jSlot, err := slots.EpochStart(justifiedCheckpoint.Epoch)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
pjSlot, err := slots.EpochStart(prevJustifiedCheckpoint.Epoch)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ðpb.ChainHead{
|
|
HeadSlot: headBlock.Block().Slot(),
|
|
HeadEpoch: slots.ToEpoch(headBlock.Block().Slot()),
|
|
HeadBlockRoot: headBlockRoot[:],
|
|
FinalizedSlot: fSlot,
|
|
FinalizedEpoch: finalizedCheckpoint.Epoch,
|
|
FinalizedBlockRoot: finalizedCheckpoint.Root,
|
|
JustifiedSlot: jSlot,
|
|
JustifiedEpoch: justifiedCheckpoint.Epoch,
|
|
JustifiedBlockRoot: justifiedCheckpoint.Root,
|
|
PreviousJustifiedSlot: pjSlot,
|
|
PreviousJustifiedEpoch: prevJustifiedCheckpoint.Epoch,
|
|
PreviousJustifiedBlockRoot: prevJustifiedCheckpoint.Root,
|
|
}, nil
|
|
}
|
|
|
|
// GetWeakSubjectivityCheckpoint retrieves weak subjectivity state root, block root, and epoch.
|
|
func (bs *Server) GetWeakSubjectivityCheckpoint(ctx context.Context, _ *emptypb.Empty) (*ethpb.WeakSubjectivityCheckpoint, error) {
|
|
hs, err := bs.HeadFetcher.HeadState(ctx)
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get head state")
|
|
}
|
|
wsEpoch, err := helpers.LatestWeakSubjectivityEpoch(ctx, hs)
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get weak subjectivity epoch")
|
|
}
|
|
wsSlot, err := slots.EpochStart(wsEpoch)
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get weak subjectivity slot")
|
|
}
|
|
|
|
wsState, err := bs.StateGen.StateBySlot(ctx, wsSlot)
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get weak subjectivity state")
|
|
}
|
|
stateRoot, err := wsState.HashTreeRoot(ctx)
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get weak subjectivity state root")
|
|
}
|
|
blkRoot, err := wsState.LatestBlockHeader().HashTreeRoot()
|
|
if err != nil {
|
|
return nil, status.Error(codes.Internal, "Could not get weak subjectivity block root")
|
|
}
|
|
|
|
return ðpb.WeakSubjectivityCheckpoint{
|
|
BlockRoot: blkRoot[:],
|
|
StateRoot: stateRoot[:],
|
|
Epoch: wsEpoch,
|
|
}, nil
|
|
}
|