laconicd/x/evm/handler.go
Federico Kunze 4d609b2a22
bump Cosmos SDK version to v0.38.2 (#183)
* evm: move Keeper and Querier to /keeper package

* keeper: update keeper_test.go

* fix format

* evm: use aliased types

* bump SDK version to v0.38.1

* app: updates from new version

* errors: switch sdk.Error -> error

* errors: switch sdk.Error -> error. Continuation

* more fixes

* update app/

* update keys and client pkgs

* build

* fix tests

* lint

* minor changes

* changelog

* address @austinbell comments

* Fix keyring usage in rpc API and CLI

* fix keyring

* break line

* Misc cleanup (#188)

* evm: move Begin and EndBlock to abci.go

* evm: use expected keeper interfaces

* app: use EthermintApp for integration and unit test setup

* evm: remove count type; update codec

* go mod verify

* evm: rename msgs for consistency

* evm: events

* minor cleanup

* lint

* ante: update tests

* changelog

* nolint

* evm: update statedb to create ethermint Account instead of BaseAccount

* fix importer test

* address @austinabell comments

* update README

* changelog

* evm: update codec

* fix event sender

* store logs in keeper after transition (#210)

* add some comments

* begin log handler test

* update TransitionCSDB to return ReturnData

* use rlp for result data encode/decode

* update tests

* implement SetBlockLogs

* implement GetBlockLogs

* test log set/get

* update keeper get/set logs to use hash as key

* fix test

* move logsKey to csdb

* attempt to fix test

* attempt to fix test

* attempt to fix test

* lint

* lint

* lint

* save logs after handling msg

* update k.Logs

* cleanup

* remove unused

* fix issues

* comment out handler test

* address comments

* lint

* fix handler test

* address comments

* use amino

* lint

* address comments

* merge

* fix encoding bug

* minor fix

* rpc: error handling

* rpc: simulate only returns gasConsumed

* rpc: error ineffassign

* go: bump version to 1.14 and SDK version to latest master

* rpc: fix simulation return value

* breaking changes from SDK

* sdk: breaking changes; build

* tests: fixes

* minor fix

* proto: ethermint types attempt

* proto: define EthAccount proto type and extend sdk std.Codec

* evm: fix panic on handler test

* evm: minor state object changes

* cleanup

* tests: update test-importer

* fix pubkey registration

* lint

* cleanup

* more test checks for importer

* minor change

* codec fixes

* rm init func

* fix importer test build

* fix marshaling for TxDecoder

* use amino codec for evm

* fix marshaling for SimulationResponse

* use jsonpb for unmarshaling

* fix method handler crashed

* return err on VerifySig

* switch stateObject balance to sdk.Int

* fixes to codec and encoding

* cleanup

* set tmhash -> ethhash in state transition

* add tmhash->ethereumhash to csdb.GetLogs

* attempt to  fix tests

* update GetLogs to switch with Has

* ante panic

* diff changes

* update SetLogs

* evm/cli: use ethermint codec

* use LengthPrefixed for encoding

* add check for nil *big.Int

* add balance to UpdateAccounts

* fix previous balance

* fix balance bug

* prevent panic on make test-import

Co-authored-by: austinabell <austinabell8@gmail.com>
Co-authored-by: noot <36753753+noot@users.noreply.github.com>
Co-authored-by: noot <elizabethjbinks@gmail.com>
2020-04-22 15:26:01 -04:00

170 lines
4.6 KiB
Go

package evm
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
emint "github.com/cosmos/ethermint/types"
"github.com/cosmos/ethermint/x/evm/types"
tmtypes "github.com/tendermint/tendermint/types"
)
// NewHandler returns a handler for Ethermint type messages.
func NewHandler(k Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
ctx = ctx.WithEventManager(sdk.NewEventManager())
switch msg := msg.(type) {
case types.MsgEthereumTx:
return HandleMsgEthereumTx(ctx, k, msg)
case types.MsgEthermint:
return HandleMsgEthermint(ctx, k, msg)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", ModuleName, msg)
}
}
}
// HandleMsgEthereumTx handles an Ethereum specific tx
func HandleMsgEthereumTx(ctx sdk.Context, k Keeper, msg types.MsgEthereumTx) (*sdk.Result, error) {
// parse the chainID from a string to a base-10 integer
intChainID, ok := new(big.Int).SetString(ctx.ChainID(), 10)
if !ok {
return nil, sdkerrors.Wrap(emint.ErrInvalidChainID, ctx.ChainID())
}
// Verify signature and retrieve sender address
sender, err := msg.VerifySig(intChainID)
if err != nil {
return nil, err
}
txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
ethHash := common.BytesToHash(txHash)
st := types.StateTransition{
Sender: sender,
AccountNonce: msg.Data.AccountNonce,
Price: msg.Data.Price,
GasLimit: msg.Data.GasLimit,
Recipient: msg.Data.Recipient,
Amount: msg.Data.Amount,
Payload: msg.Data.Payload,
Csdb: k.CommitStateDB.WithContext(ctx),
ChainID: intChainID,
THash: &ethHash,
Simulate: ctx.IsCheckTx(),
}
// Prepare db for logs
// TODO: block hash
k.CommitStateDB.Prepare(ethHash, common.Hash{}, k.TxCount)
k.TxCount++
// TODO: move to keeper
returnData, err := st.TransitionCSDB(ctx)
if err != nil {
return nil, err
}
// update block bloom filter
k.Bloom.Or(k.Bloom, returnData.Bloom)
// update transaction logs in KVStore
err = k.SetTransactionLogs(ctx, returnData.Logs, txHash)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.EventTypeEthereumTx,
sdk.NewAttribute(sdk.AttributeKeyAmount, msg.Data.Amount.String()),
),
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, sender.String()),
),
})
if msg.Data.Recipient != nil {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeEthereumTx,
sdk.NewAttribute(types.AttributeKeyRecipient, msg.Data.Recipient.String()),
),
)
}
// set the events to the result
returnData.Result.Events = ctx.EventManager().Events().ToABCIEvents()
return returnData.Result, nil
}
func HandleMsgEthermint(ctx sdk.Context, k Keeper, msg types.MsgEthermint) (*sdk.Result, error) {
// parse the chainID from a string to a base-10 integer
intChainID, ok := new(big.Int).SetString(ctx.ChainID(), 10)
if !ok {
return nil, sdkerrors.Wrap(emint.ErrInvalidChainID, ctx.ChainID())
}
txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
ethHash := common.BytesToHash(txHash)
st := types.StateTransition{
Sender: common.BytesToAddress(msg.From.Bytes()),
AccountNonce: msg.AccountNonce,
Price: msg.Price.BigInt(),
GasLimit: msg.GasLimit,
Amount: msg.Amount.BigInt(),
Payload: msg.Payload,
Csdb: k.CommitStateDB.WithContext(ctx),
ChainID: intChainID,
THash: &ethHash,
Simulate: ctx.IsCheckTx(),
}
if msg.Recipient != nil {
to := common.BytesToAddress(msg.Recipient.Bytes())
st.Recipient = &to
}
// Prepare db for logs
k.CommitStateDB.Prepare(ethHash, common.Hash{}, k.TxCount)
k.TxCount++
returnData, err := st.TransitionCSDB(ctx)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.EventTypeEthermint,
sdk.NewAttribute(sdk.AttributeKeyAmount, msg.Amount.String()),
),
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.From.String()),
),
})
if msg.Recipient != nil {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeEthermint,
sdk.NewAttribute(types.AttributeKeyRecipient, msg.Recipient.String()),
),
)
}
// set the events to the result
returnData.Result.Events = ctx.EventManager().Events().ToABCIEvents()
return returnData.Result, nil
}