package keeper import ( "encoding/json" "fmt" "strconv" "github.com/cosmos/cosmos-sdk/codec" sdk "github.com/cosmos/cosmos-sdk/types" sdkerrors "github.com/cosmos/cosmos-sdk/types/errors" "github.com/cosmos/ethermint/utils" "github.com/cosmos/ethermint/version" "github.com/cosmos/ethermint/x/evm/types" ethcmn "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" abci "github.com/tendermint/tendermint/abci/types" ) // NewQuerier is the module level router for state queries func NewQuerier(keeper Keeper) sdk.Querier { return func(ctx sdk.Context, path []string, _ abci.RequestQuery) ([]byte, error) { switch path[0] { case types.QueryProtocolVersion: return queryProtocolVersion(keeper) case types.QueryBalance: return queryBalance(ctx, path, keeper) case types.QueryBlockNumber: return queryBlockNumber(ctx, keeper) case types.QueryStorage: return queryStorage(ctx, path, keeper) case types.QueryCode: return queryCode(ctx, path, keeper) case types.QueryHashToHeight: return queryHashToHeight(ctx, path, keeper) case types.QueryTransactionLogs: return queryTransactionLogs(ctx, path, keeper) case types.QueryBloom: return queryBlockBloom(ctx, path, keeper) case types.QueryLogs: return queryLogs(ctx, keeper) case types.QueryAccount: return queryAccount(ctx, path, keeper) case types.QueryExportAccount: return queryExportAccount(ctx, path, keeper) default: return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, "unknown query endpoint") } } } func queryProtocolVersion(keeper Keeper) ([]byte, error) { vers := version.ProtocolVersion bz, err := codec.MarshalJSONIndent(keeper.cdc, hexutil.Uint(vers)) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryBalance(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { addr := ethcmn.HexToAddress(path[1]) balance := keeper.GetBalance(ctx, addr) balanceStr, err := utils.MarshalBigInt(balance) if err != nil { return nil, err } res := types.QueryResBalance{Balance: balanceStr} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryBlockNumber(ctx sdk.Context, keeper Keeper) ([]byte, error) { num := ctx.BlockHeight() bnRes := types.QueryResBlockNumber{Number: num} bz, err := codec.MarshalJSONIndent(keeper.cdc, bnRes) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryStorage(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { addr := ethcmn.HexToAddress(path[1]) key := ethcmn.HexToHash(path[2]) val := keeper.GetState(ctx, addr, key) res := types.QueryResStorage{Value: val.Bytes()} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryCode(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { addr := ethcmn.HexToAddress(path[1]) code := keeper.GetCode(ctx, addr) res := types.QueryResCode{Code: code} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryHashToHeight(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { blockHash := ethcmn.FromHex(path[1]) blockNumber, found := keeper.GetBlockHash(ctx, blockHash) if !found { return []byte{}, fmt.Errorf("block height not found for hash %s", path[1]) } res := types.QueryResBlockNumber{Number: blockNumber} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryBlockBloom(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { num, err := strconv.ParseInt(path[1], 10, 64) if err != nil { return nil, fmt.Errorf("could not unmarshal block height: %w", err) } bloom, found := keeper.GetBlockBloom(ctx.WithBlockHeight(num), num) if !found { return nil, fmt.Errorf("block bloom not found for height %d", num) } res := types.QueryBloomFilter{Bloom: bloom} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryTransactionLogs(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { txHash := ethcmn.HexToHash(path[1]) logs, err := keeper.GetLogs(ctx, txHash) if err != nil { return nil, err } res := types.QueryETHLogs{Logs: logs} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryLogs(ctx sdk.Context, keeper Keeper) ([]byte, error) { logs := keeper.AllLogs(ctx) res := types.QueryETHLogs{Logs: logs} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryAccount(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { addr := ethcmn.HexToAddress(path[1]) so := keeper.GetOrNewStateObject(ctx, addr) balance, err := utils.MarshalBigInt(so.Balance()) if err != nil { return nil, err } res := types.QueryResAccount{ Balance: balance, CodeHash: so.CodeHash(), Nonce: so.Nonce(), } bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryExportAccount(ctx sdk.Context, path []string, keeper Keeper) ([]byte, error) { hexAddress := path[1] addr := ethcmn.HexToAddress(hexAddress) var storage types.Storage err := keeper.ForEachStorage(ctx, addr, func(key, value ethcmn.Hash) bool { storage = append(storage, types.NewState(key, value)) return false }) if err != nil { return nil, err } balanceInt := keeper.GetBalance(ctx, addr) balance := sdk.NewIntFromBigInt(balanceInt) res := types.GenesisAccount{ Address: hexAddress, Balance: balance, Code: keeper.GetCode(ctx, addr), Storage: storage, } // TODO: codec.MarshalJSONIndent doesn't call the String() method of types properly bz, err := json.MarshalIndent(res, "", "\t") if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil }