forked from cerc-io/laconicd-deprecated
9cbb4dcf6d
* changelog v0.4.0 * stargate: types changes * msg and handler changes * validation * fixes * more fixes * more test fixes * changelog * changelog * lint * rm comment * lint * redundant if condition
105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package keeper
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import (
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"github.com/ethereum/go-ethereum/common"
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tmtypes "github.com/tendermint/tendermint/types"
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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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// EthereumTx implements the Msg/EthereumTx gRPC method.
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func (k Keeper) EthereumTx(ctx sdk.Context, msg types.MsgEthereumTx) (*sdk.Result, error) {
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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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var recipient *common.Address
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if msg.Data.Recipient != nil {
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addr := common.HexToAddress(msg.Data.Recipient.Address)
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recipient = &addr
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}
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txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
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ethHash := common.BytesToHash(txHash)
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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.CommitStateDB.Prepare(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, common.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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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, msg.Data.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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executionResult.Result.Events = ctx.EventManager().Events()
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return executionResult.Result, nil
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}
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