130 lines
3.3 KiB
Go
130 lines
3.3 KiB
Go
package keeper
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import (
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"context"
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"github.com/armon/go-metrics"
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tmtypes "github.com/tendermint/tendermint/types"
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ethcmn "github.com/ethereum/go-ethereum/common"
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"github.com/cosmos/cosmos-sdk/telemetry"
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sdk "github.com/cosmos/cosmos-sdk/types"
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ethermint "github.com/cosmos/ethermint/types"
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"github.com/cosmos/ethermint/x/evm/types"
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)
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var _ types.MsgServer = Keeper{}
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// EthereumTx implements the Msg/EthereumTx gRPC method.
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func (k Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*types.MsgEthereumTxResponse, error) {
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ctx := sdk.UnwrapSDKContext(goCtx)
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// parse the chainID from a string to a base-10 integer
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chainIDEpoch, err := ethermint.ParseChainID(ctx.ChainID())
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if err != nil {
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return nil, err
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}
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// Verify signature and retrieve sender address
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sender, err := msg.VerifySig(chainIDEpoch)
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if err != nil {
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return nil, err
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}
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txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
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ethHash := ethcmn.BytesToHash(txHash)
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var recipient *ethcmn.Address
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labels := []metrics.Label{telemetry.NewLabel("operation", "create")}
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if msg.Data.Recipient != nil {
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addr := ethcmn.HexToAddress(msg.Data.Recipient.Address)
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recipient = &addr
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labels = []metrics.Label{telemetry.NewLabel("operation", "call")}
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}
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st := types.StateTransition{
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AccountNonce: msg.Data.AccountNonce,
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Price: msg.Data.Price.BigInt(),
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GasLimit: msg.Data.GasLimit,
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Recipient: recipient,
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Amount: msg.Data.Amount.BigInt(),
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Payload: msg.Data.Payload,
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Csdb: k.CommitStateDB.WithContext(ctx),
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ChainID: chainIDEpoch,
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TxHash: ðHash,
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Sender: sender,
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Simulate: ctx.IsCheckTx(),
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}
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// since the txCount is used by the stateDB, and a simulated tx is run only on the node it's submitted to,
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// then this will cause the txCount/stateDB of the node that ran the simulated tx to be different than the
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// other nodes, causing a consensus error
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if !st.Simulate {
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// Prepare db for logs
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blockHash := types.HashFromContext(ctx)
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k.Prepare(ctx, ethHash, blockHash, k.TxCount)
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k.TxCount++
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}
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config, found := k.GetChainConfig(ctx)
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if !found {
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return nil, types.ErrChainConfigNotFound
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}
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executionResult, err := st.TransitionDb(ctx, config)
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if err != nil {
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return nil, err
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}
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if !st.Simulate {
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// update block bloom filter
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k.Bloom.Or(k.Bloom, executionResult.Bloom)
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// update transaction logs in KVStore
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err = k.SetLogs(ctx, ethcmn.BytesToHash(txHash), executionResult.Logs)
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if err != nil {
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panic(err)
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}
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}
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// add metrics for the transaction
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defer func() {
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if st.Amount.IsInt64() {
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telemetry.SetGaugeWithLabels(
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[]string{"tx", "msg", "ethereum"},
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float32(st.Amount.Int64()),
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labels,
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)
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}
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}()
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// emit events
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ctx.EventManager().EmitEvents(sdk.Events{
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sdk.NewEvent(
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types.EventTypeEthereumTx,
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sdk.NewAttribute(sdk.AttributeKeyAmount, st.Amount.String()),
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),
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, sender.String()),
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),
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})
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if msg.Data.Recipient != nil {
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeEthereumTx,
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sdk.NewAttribute(types.AttributeKeyRecipient, msg.Data.Recipient.Address),
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),
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)
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}
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return executionResult.Response, nil
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}
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