package keeper import ( "fmt" "strconv" "github.com/cosmos/cosmos-sdk/codec" sdk "github.com/cosmos/cosmos-sdk/types" "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, req abci.RequestQuery) ([]byte, sdk.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.QueryNonce: return queryNonce(ctx, path, keeper) case types.QueryHashToHeight: return queryHashToHeight(ctx, path, keeper) case types.QueryTxLogs: return queryTxLogs(ctx, path, keeper) case types.QueryLogsBloom: return queryBlockLogsBloom(ctx, path, keeper) case types.QueryLogs: return queryLogs(ctx, keeper) case types.QueryAccount: return queryAccount(ctx, path, keeper) default: return nil, sdk.ErrUnknownRequest("unknown query endpoint") } } } func queryProtocolVersion(keeper Keeper) ([]byte, sdk.Error) { vers := version.ProtocolVersion bz, err := codec.MarshalJSONIndent(keeper.cdc, hexutil.Uint(vers)) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryBalance(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { addr := ethcmn.HexToAddress(path[1]) balance := keeper.GetBalance(ctx, addr) res := types.QueryResBalance{Balance: utils.MarshalBigInt(balance)} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryBlockNumber(ctx sdk.Context, keeper Keeper) ([]byte, sdk.Error) { num := ctx.BlockHeight() bnRes := types.QueryResBlockNumber{Number: num} bz, err := codec.MarshalJSONIndent(keeper.cdc, bnRes) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryStorage(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.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, sdk.ErrInternal(err.Error()) } return bz, nil } func queryCode(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.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, sdk.ErrInternal(err.Error()) } return bz, nil } func queryNonce(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { addr := ethcmn.HexToAddress(path[1]) nonce := keeper.GetNonce(ctx, addr) nRes := types.QueryResNonce{Nonce: nonce} bz, err := codec.MarshalJSONIndent(keeper.cdc, nRes) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryHashToHeight(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { blockHash := ethcmn.FromHex(path[1]) blockNumber := keeper.GetBlockHashMapping(ctx, blockHash) res := types.QueryResBlockNumber{Number: blockNumber} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryBlockLogsBloom(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { num, err := strconv.ParseInt(path[1], 10, 64) if err != nil { return nil, sdk.ErrInternal(fmt.Sprintf("could not unmarshall block number: %s", err.Error())) } bloom, err := keeper.GetBlockBloomMapping(ctx, num) if err != nil { return nil, sdk.ErrInternal(fmt.Sprintf("failed to get block bloom mapping: %s", err.Error())) } res := types.QueryBloomFilter{Bloom: bloom} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryTxLogs(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { txHash := ethcmn.HexToHash(path[1]) logs, err := keeper.GetLogs(ctx, txHash) if err != nil { return nil, sdk.ErrInternal(err.Error()) } res := types.QueryETHLogs{Logs: logs} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryLogs(ctx sdk.Context, keeper Keeper) ([]byte, sdk.Error) { logs := keeper.AllLogs(ctx) res := types.QueryETHLogs{Logs: logs} bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil } func queryAccount(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { addr := ethcmn.HexToAddress(path[1]) so := keeper.GetOrNewStateObject(ctx, addr) res := types.QueryResAccount{ Balance: utils.MarshalBigInt(so.Balance()), CodeHash: so.CodeHash(), Nonce: so.Nonce(), } bz, err := codec.MarshalJSONIndent(keeper.cdc, res) if err != nil { return nil, sdk.ErrInternal(err.Error()) } return bz, nil }