package evm import ( "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" ) // Supported endpoints const ( QueryProtocolVersion = "protocolVersion" QueryBalance = "balance" QueryBlockNumber = "blockNumber" QueryStorage = "storage" QueryCode = "code" QueryNonce = "nonce" QueryHashToHeight = "hashToHeight" QueryTxLogs = "txLogs" QueryLogsBloom = "logsBloom" QueryLogs = "logs" ) // 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) (res []byte, err sdk.Error) { switch path[0] { case QueryProtocolVersion: return queryProtocolVersion(keeper) case QueryBalance: return queryBalance(ctx, path, keeper) case QueryBlockNumber: return queryBlockNumber(ctx, keeper) case QueryStorage: return queryStorage(ctx, path, keeper) case QueryCode: return queryCode(ctx, path, keeper) case QueryNonce: return queryNonce(ctx, path, keeper) case QueryHashToHeight: return queryHashToHeight(ctx, path, keeper) case QueryTxLogs: return queryTxLogs(ctx, path, keeper) case QueryLogsBloom: return queryBlockLogsBloom(ctx, path, keeper) case QueryLogs: return queryLogs(ctx, path, keeper) default: return nil, sdk.ErrUnknownRequest("unknown query endpoint") } } } func queryProtocolVersion(keeper Keeper) ([]byte, sdk.Error) { vers := version.ProtocolVersion res, err := codec.MarshalJSONIndent(keeper.cdc, hexutil.Uint(vers)) if err != nil { panic("could not marshal result to JSON") } return res, nil } func queryBalance(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { addr := ethcmn.HexToAddress(path[1]) balance := keeper.GetBalance(ctx, addr) bRes := types.QueryResBalance{Balance: utils.MarshalBigInt(balance)} res, err := codec.MarshalJSONIndent(keeper.cdc, bRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, nil } func queryBlockNumber(ctx sdk.Context, keeper Keeper) ([]byte, sdk.Error) { num := ctx.BlockHeight() bnRes := types.QueryResBlockNumber{Number: num} res, err := codec.MarshalJSONIndent(keeper.cdc, bnRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, 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) bRes := types.QueryResStorage{Value: val.Bytes()} res, err := codec.MarshalJSONIndent(keeper.cdc, bRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, nil } func queryCode(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { addr := ethcmn.HexToAddress(path[1]) code := keeper.GetCode(ctx, addr) cRes := types.QueryResCode{Code: code} res, err := codec.MarshalJSONIndent(keeper.cdc, cRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, 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} res, err := codec.MarshalJSONIndent(keeper.cdc, nRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, nil } func queryHashToHeight(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { blockHash := ethcmn.FromHex(path[1]) blockNumber := keeper.GetBlockHashMapping(ctx, blockHash) bRes := types.QueryResBlockNumber{Number: blockNumber} res, err := codec.MarshalJSONIndent(keeper.cdc, bRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, nil } func queryBlockLogsBloom(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { num, err := strconv.ParseInt(path[1], 10, 64) if err != nil { panic("could not unmarshall block number: " + err.Error()) } bloom := keeper.GetBlockBloomMapping(ctx, num) bRes := types.QueryBloomFilter{Bloom: bloom} res, err := codec.MarshalJSONIndent(keeper.cdc, bRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, nil } func queryTxLogs(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { txHash := ethcmn.HexToHash(path[1]) logs := keeper.GetLogs(ctx, txHash) bRes := types.QueryTxLogs{Logs: logs} res, err := codec.MarshalJSONIndent(keeper.cdc, bRes) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return res, nil } func queryLogs(ctx sdk.Context, path []string, keeper Keeper) ([]byte, sdk.Error) { logs := keeper.Logs(ctx) l, err := codec.MarshalJSONIndent(keeper.cdc, logs) if err != nil { panic("could not marshal result to JSON: " + err.Error()) } return l, nil }