laconicd/x/evm/keeper/msg_server.go

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package keeper
import (
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"context"
"errors"
"math/big"
"time"
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"github.com/armon/go-metrics"
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ethcmn "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/vm"
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tmtypes "github.com/tendermint/tendermint/types"
"github.com/cosmos/cosmos-sdk/telemetry"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/ethermint/x/evm/types"
)
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var _ types.MsgServer = &Keeper{}
func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*types.MsgEthereumTxResponse, error) {
defer telemetry.ModuleMeasureSince(types.ModuleName, time.Now(), types.TypeMsgEthereumTx)
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ctx := sdk.UnwrapSDKContext(goCtx)
k.CommitStateDB.WithContext(ctx)
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ethMsg, err := msg.AsMessage()
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrorInvalidSigner, err.Error())
}
config, found := k.GetChainConfig(ctx)
if !found {
return nil, types.ErrChainConfigNotFound
}
var labels []metrics.Label
if msg.To() == nil {
labels = []metrics.Label{
telemetry.NewLabel("execution", "create"),
}
} else {
labels = []metrics.Label{
telemetry.NewLabel("execution", "call"),
// add label to the called recipient address (contract or account)
telemetry.NewLabel("to", msg.Data.To),
}
}
sender := ethMsg.From()
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txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
ethHash := ethcmn.BytesToHash(txHash)
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blockHash, _ := k.GetBlockHashFromHeight(ctx, ctx.BlockHeight())
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st := &types.StateTransition{
Message: ethMsg,
Csdb: k.CommitStateDB.WithContext(ctx),
ChainID: msg.ChainID(),
TxHash: &ethHash,
Simulate: ctx.IsCheckTx(),
}
// since the txCount is used by the stateDB, and a simulated tx is run only on the node it's submitted to,
// then this will cause the txCount/stateDB of the node that ran the simulated tx to be different than the
// other nodes, causing a consensus error
if !st.Simulate {
// Prepare db for logs
k.CommitStateDB.Prepare(ethHash, blockHash, int(k.GetTxIndexTransient()))
k.IncreaseTxIndexTransient()
}
executionResult, err := st.TransitionDb(ctx, config)
if err != nil {
if errors.Is(err, vm.ErrExecutionReverted) && executionResult != nil {
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// keep the execution result for revert reason
executionResult.Response.Reverted = true
if !st.Simulate {
k.SetTxReceiptToHash(ctx, ethHash, &types.TxReceipt{
Hash: ethHash.Hex(),
From: sender.Hex(),
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Data: msg.Data,
BlockHeight: uint64(ctx.BlockHeight()),
BlockHash: blockHash.Hex(),
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Result: &types.TxResult{
ContractAddress: executionResult.Response.ContractAddress,
Bloom: executionResult.Response.Bloom,
TxLogs: executionResult.Response.TxLogs,
Ret: executionResult.Response.Ret,
Reverted: executionResult.Response.Reverted,
GasUsed: executionResult.GasInfo.GasConsumed,
},
})
}
return executionResult.Response, nil
}
return nil, err
}
if !st.Simulate {
bloom, found := k.GetBlockBloomTransient()
if !found {
bloom = big.NewInt(0)
}
// update block bloom filter
bloom = bloom.Or(bloom, executionResult.Bloom)
k.SetBlockBloomTransient(bloom)
// update transaction logs in KVStore
err = k.CommitStateDB.SetLogs(ethHash, executionResult.Logs)
if err != nil {
panic(err)
}
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blockHash, _ := k.GetBlockHashFromHeight(ctx, ctx.BlockHeight())
k.SetTxReceiptToHash(ctx, ethHash, &types.TxReceipt{
Hash: ethHash.Hex(),
From: sender.Hex(),
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Data: msg.Data,
Index: uint64(st.Csdb.TxIndex()),
BlockHeight: uint64(ctx.BlockHeight()),
BlockHash: blockHash.Hex(),
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Result: &types.TxResult{
ContractAddress: executionResult.Response.ContractAddress,
Bloom: executionResult.Response.Bloom,
TxLogs: executionResult.Response.TxLogs,
Ret: executionResult.Response.Ret,
Reverted: executionResult.Response.Reverted,
GasUsed: executionResult.GasInfo.GasConsumed,
},
})
k.AddTxHashToBlock(ctx, ctx.BlockHeight(), ethHash)
}
defer func() {
if st.Message.Value().IsInt64() {
telemetry.SetGauge(
float32(st.Message.Value().Int64()),
"tx", "msg", "ethereum_tx",
)
}
telemetry.IncrCounterWithLabels(
[]string{types.ModuleName, "ethereum_tx"},
1,
labels,
)
}()
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// emit events
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.EventTypeEthereumTx,
sdk.NewAttribute(sdk.AttributeKeyAmount, st.Message.Value().String()),
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sdk.NewAttribute(types.AttributeKeyTxHash, ethcmn.BytesToHash(txHash).Hex()),
),
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, sender.String()),
),
})
if len(msg.Data.To) > 0 {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeEthereumTx,
sdk.NewAttribute(types.AttributeKeyRecipient, msg.Data.To),
),
)
}
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return executionResult.Response, nil
}