mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
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1b5b8a57e0
* Update io_kubernetes_build commit hash to 1246899 * Update dependency build_bazel_rules_nodejs to v0.33.1 * Update dependency com_github_hashicorp_golang_lru to v0.5.1 * Update libp2p * Update io_bazel_rules_k8s commit hash to e68d5d7 * Starting to remove old protos * Bazel build proto passes * Fixing pb version * Cleaned up core package * Fixing tests * 6 tests failing * Update proto bugs * Fixed incorrect validator ordering proto * Sync with master * Update go-ssz commit * Removed bad copies from v1alpha1 folder * add json spec json to pb handler * add nested proto example * proto/testing test works * fix refactoring build failures * use merged ssz * push latest changes * used forked json encoding * used forked json encoding * fix warning * fix build issues * fix test and lint * fix build * lint
65 lines
2.1 KiB
Go
65 lines
2.1 KiB
Go
package blocks
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import (
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"context"
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"fmt"
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"time"
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"github.com/ethereum/go-ethereum/common"
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gethTypes "github.com/ethereum/go-ethereum/core/types"
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pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
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ethpb "github.com/prysmaticlabs/prysm/proto/eth/v1alpha1"
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"github.com/prysmaticlabs/prysm/shared/bytesutil"
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"github.com/prysmaticlabs/prysm/shared/params"
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)
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// IsValidBlock ensures that the block is compliant with the block processing validity conditions.
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func IsValidBlock(
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ctx context.Context,
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state *pb.BeaconState,
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block *ethpb.BeaconBlock,
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HasBlock func(hash [32]byte) bool,
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GetPOWBlock func(ctx context.Context, hash common.Hash) (*gethTypes.Block, error),
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genesisTime time.Time) error {
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// Pre-Processing Condition 1:
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// Check that the parent Block has been processed and saved.
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parentRoot := bytesutil.ToBytes32(block.ParentRoot)
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parentBlock := HasBlock(parentRoot)
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if !parentBlock {
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return fmt.Errorf("unprocessed parent block as it is not saved in the db: %#x", parentRoot)
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}
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h := common.BytesToHash(state.Eth1Data.BlockHash)
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powBlock, err := GetPOWBlock(ctx, h)
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if err != nil {
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return fmt.Errorf("unable to retrieve POW chain reference block: %v", err)
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}
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// Pre-Processing Condition 2:
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// The block pointed to by the state in state.processed_pow_receipt_root has
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// been processed in the ETH 1.0 chain.
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if powBlock == nil {
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return fmt.Errorf("proof-of-Work chain reference in state does not exist: %#x", state.Eth1Data.BlockHash)
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}
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// Pre-Processing Condition 4:
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// The node's local time is greater than or equal to
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// state.genesis_time + (block.slot-GENESIS_SLOT)* SECONDS_PER_SLOT.
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if !IsSlotValid(block.Slot, genesisTime) {
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return fmt.Errorf("slot of block is too high: %d", block.Slot)
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}
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return nil
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}
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// IsSlotValid compares the slot to the system clock to determine if the block is valid.
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func IsSlotValid(slot uint64, genesisTime time.Time) bool {
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secondsPerSlot := time.Duration((slot)*params.BeaconConfig().SecondsPerSlot) * time.Second
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validTimeThreshold := genesisTime.Add(secondsPerSlot)
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now := clock.Now()
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isValid := now.After(validTimeThreshold)
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return isValid
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}
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