296 lines
9.1 KiB
Go
296 lines
9.1 KiB
Go
package keeper
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import (
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"math/big"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
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"github.com/ethereum/go-ethereum/common"
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ethtypes "github.com/ethereum/go-ethereum/core/types"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/cosmos/ethermint/x/evm/types"
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)
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// Keeper wraps the CommitStateDB, allowing us to pass in SDK context while adhering
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// to the StateDB interface.
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type Keeper struct {
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// Protobuf codec
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cdc codec.BinaryMarshaler
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// Store key required for the EVM Prefix KVStore. It is required by:
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// - storing Account's Storage State
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// - storing Account's Code
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// - storing transaction Logs
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// - storing block height -> bloom filter map. Needed for the Web3 API.
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// - storing block hash -> block height map. Needed for the Web3 API. TODO: remove
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storeKey sdk.StoreKey
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accountKeeper types.AccountKeeper
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bankKeeper types.BankKeeper
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// Ethermint concrete implementation on the EVM StateDB interface
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CommitStateDB *types.CommitStateDB
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// Transaction counter in a block. Used on StateSB's Prepare function.
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// It is reset to 0 every block on BeginBlock so there's no point in storing the counter
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// on the KVStore or adding it as a field on the EVM genesis state.
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TxCount int
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Bloom *big.Int
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// LogsCache keeps mapping of contract address -> eth logs emitted
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// during EVM execution in the current block.
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LogsCache map[common.Address][]*ethtypes.Log
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}
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// NewKeeper generates new evm module keeper
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func NewKeeper(
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cdc codec.BinaryMarshaler, storeKey sdk.StoreKey, paramSpace paramtypes.Subspace,
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ak types.AccountKeeper, bankKeeper types.BankKeeper,
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) *Keeper {
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// set KeyTable if it has not already been set
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if !paramSpace.HasKeyTable() {
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paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
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}
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// NOTE: we pass in the parameter space to the CommitStateDB in order to use custom denominations for the EVM operations
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return &Keeper{
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cdc: cdc,
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accountKeeper: ak,
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bankKeeper: bankKeeper,
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storeKey: storeKey,
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CommitStateDB: types.NewCommitStateDB(sdk.Context{}, storeKey, paramSpace, ak, bankKeeper),
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TxCount: 0,
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Bloom: big.NewInt(0),
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LogsCache: map[common.Address][]*ethtypes.Log{},
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}
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}
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// Logger returns a module-specific logger.
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func (k Keeper) Logger(ctx sdk.Context) log.Logger {
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return ctx.Logger().With("module", types.ModuleName)
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}
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// ----------------------------------------------------------------------------
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// Block bloom bits mapping functions
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// Required by Web3 API.
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// ----------------------------------------------------------------------------
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// GetBlockBloom gets bloombits from block height
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func (k Keeper) GetBlockBloom(ctx sdk.Context, height int64) (ethtypes.Bloom, bool) {
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store := ctx.KVStore(k.storeKey)
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key := types.BloomKey(height)
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has := store.Has(key)
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if !has {
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return ethtypes.Bloom{}, true // sometimes bloom not found, fix this
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}
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bz := store.Get(key)
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return ethtypes.BytesToBloom(bz), true
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}
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// SetBlockBloom sets the mapping from block height to bloom bits
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func (k Keeper) SetBlockBloom(ctx sdk.Context, height int64, bloom ethtypes.Bloom) {
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store := ctx.KVStore(k.storeKey)
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key := types.BloomKey(height)
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store.Set(key, bloom.Bytes())
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}
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// GetBlockHash gets block height from block consensus hash
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func (k Keeper) GetBlockHashFromHeight(ctx sdk.Context, height int64) ([]byte, bool) {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.KeyBlockHeightHash(uint64(height)))
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if len(bz) == 0 {
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return common.Hash{}.Bytes(), false
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}
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return common.BytesToHash(bz).Bytes(), true
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}
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// SetBlockHash sets the mapping from block consensus hash to block height
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func (k Keeper) SetBlockHash(ctx sdk.Context, hash []byte, height int64) {
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store := ctx.KVStore(k.storeKey)
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bz := sdk.Uint64ToBigEndian(uint64(height))
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store.Set(types.KeyBlockHash(common.BytesToHash(hash)), bz)
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}
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// GetBlockHash gets block height from block consensus hash
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func (k Keeper) GetBlockHeightByHash(ctx sdk.Context, hash common.Hash) (int64, bool) {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.KeyBlockHash(hash))
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if len(bz) == 0 {
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return 0, false
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}
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height := sdk.BigEndianToUint64(bz)
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return int64(height), true
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}
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// SetBlockHash sets the mapping from block consensus hash to block height
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func (k Keeper) SetBlockHeightToHash(ctx sdk.Context, hash []byte, height int64) {
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store := ctx.KVStore(k.storeKey)
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store.Set(types.KeyBlockHeightHash(uint64(height)), hash)
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}
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// SetTxReceiptToHash sets the mapping from tx hash to tx receipt
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func (k Keeper) SetTxReceiptToHash(ctx sdk.Context, hash common.Hash, receipt *types.TxReceipt) {
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ctx = ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
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data := k.cdc.MustMarshalBinaryBare(receipt)
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store := ctx.KVStore(k.storeKey)
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store.Set(types.KeyHashTxReceipt(hash), data)
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}
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// GetHeightHash returns the block header hash associated with a given block height and chain epoch number.
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func (k Keeper) GetHeightHash(ctx sdk.Context, height uint64) common.Hash {
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return k.CommitStateDB.WithContext(ctx).GetHeightHash(height)
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}
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// SetHeightHash sets the block header hash associated with a given height.
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func (k Keeper) SetHeightHash(ctx sdk.Context, height uint64, hash common.Hash) {
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k.CommitStateDB.WithContext(ctx).SetHeightHash(height, hash)
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}
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// GetTxReceiptFromHash gets tx receipt by tx hash.
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func (k Keeper) GetTxReceiptFromHash(ctx sdk.Context, hash common.Hash) (*types.TxReceipt, bool) {
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store := ctx.KVStore(k.storeKey)
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data := store.Get(types.KeyHashTxReceipt(hash))
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if data == nil || len(data) == 0 {
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return nil, false
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}
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var receipt types.TxReceipt
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k.cdc.MustUnmarshalBinaryBare(data, &receipt)
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return &receipt, true
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}
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// AddTxHashToBlock stores tx hash in the list of tx for the block.
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func (k Keeper) AddTxHashToBlock(ctx sdk.Context, blockHeight int64, txHash common.Hash) {
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key := types.KeyBlockHeightTxs(uint64(blockHeight))
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list := types.BytesList{}
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store := ctx.KVStore(k.storeKey)
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data := store.Get(key)
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if len(data) > 0 {
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k.cdc.MustUnmarshalBinaryBare(data, &list)
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}
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list.Bytes = append(list.Bytes, txHash.Bytes())
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data = k.cdc.MustMarshalBinaryBare(&list)
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store.Set(key, data)
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}
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// GetTxsFromBlock returns list of tx hash in the block by height.
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func (k Keeper) GetTxsFromBlock(ctx sdk.Context, blockHeight int64) []common.Hash {
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key := types.KeyBlockHeightTxs(uint64(blockHeight))
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store := ctx.KVStore(k.storeKey)
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data := store.Get(key)
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if len(data) > 0 {
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list := types.BytesList{}
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k.cdc.MustUnmarshalBinaryBare(data, &list)
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txs := make([]common.Hash, 0, len(list.Bytes))
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for _, b := range list.Bytes {
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txs = append(txs, common.BytesToHash(b))
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}
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return txs
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}
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return nil
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}
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// GetTxReceiptsByBlockHeight gets tx receipts by block height.
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func (k Keeper) GetTxReceiptsByBlockHeight(ctx sdk.Context, blockHeight int64) []*types.TxReceipt {
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txs := k.GetTxsFromBlock(ctx, blockHeight)
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if len(txs) == 0 {
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return nil
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}
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store := ctx.KVStore(k.storeKey)
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receipts := make([]*types.TxReceipt, 0, len(txs))
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for idx, txHash := range txs {
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data := store.Get(types.KeyHashTxReceipt(txHash))
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if data == nil || len(data) == 0 {
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continue
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}
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var receipt types.TxReceipt
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k.cdc.MustUnmarshalBinaryBare(data, &receipt)
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receipt.Index = uint64(idx)
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receipts = append(receipts, &receipt)
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}
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return receipts
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}
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// GetTxReceiptsByBlockHash gets tx receipts by block hash.
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func (k Keeper) GetTxReceiptsByBlockHash(ctx sdk.Context, hash common.Hash) []*types.TxReceipt {
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blockHeight, ok := k.GetBlockHeightByHash(ctx, hash)
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if !ok {
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return nil
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}
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return k.GetTxReceiptsByBlockHeight(ctx, blockHeight)
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}
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// GetAllTxLogs return all the transaction logs from the store.
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func (k Keeper) GetAllTxLogs(ctx sdk.Context) []types.TransactionLogs {
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store := ctx.KVStore(k.storeKey)
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iterator := sdk.KVStorePrefixIterator(store, types.KeyPrefixLogs)
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defer iterator.Close()
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txsLogs := []types.TransactionLogs{}
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for ; iterator.Valid(); iterator.Next() {
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var txLog types.TransactionLogs
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k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &txLog)
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// add a new entry
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txsLogs = append(txsLogs, txLog)
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}
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return txsLogs
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}
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// GetAccountStorage return state storage associated with an account
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func (k Keeper) GetAccountStorage(ctx sdk.Context, address common.Address) (types.Storage, error) {
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storage := types.Storage{}
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err := k.ForEachStorage(ctx, address, func(key, value common.Hash) bool {
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storage = append(storage, types.NewState(key, value))
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return false
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})
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if err != nil {
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return types.Storage{}, err
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}
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return storage, nil
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}
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// GetChainConfig gets block height from block consensus hash
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func (k Keeper) GetChainConfig(ctx sdk.Context) (types.ChainConfig, bool) {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.KeyPrefixChainConfig)
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if len(bz) == 0 {
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return types.ChainConfig{}, false
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}
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var config types.ChainConfig
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k.cdc.MustUnmarshalBinaryBare(bz, &config)
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return config, true
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}
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// SetChainConfig sets the mapping from block consensus hash to block height
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func (k Keeper) SetChainConfig(ctx sdk.Context, config types.ChainConfig) {
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store := ctx.KVStore(k.storeKey)
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bz := k.cdc.MustMarshalBinaryBare(&config)
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store.Set(types.KeyPrefixChainConfig, bz)
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}
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