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legacy_querier.go
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/
legacy_querier.go
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package keeper
import (
"encoding/json"
"reflect"
"sort"
"strconv"
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/konstellation/kn-sdk/x/wasm/internal/types"
abci "github.com/tendermint/tendermint/abci/types"
)
const (
QueryListContractByCode = "list-contracts-by-code"
QueryGetContract = "contract-info"
QueryGetContractState = "contract-state"
QueryGetCode = "code"
QueryListCode = "list-code"
QueryContractHistory = "contract-history"
)
const (
QueryMethodContractStateSmart = "smart"
QueryMethodContractStateAll = "all"
QueryMethodContractStateRaw = "raw"
)
// NewLegacyQuerier creates a new querier
func NewLegacyQuerier(keeper *Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, error) {
var (
rsp interface{}
err error
)
switch path[0] {
case QueryGetContract:
addr, err := sdk.AccAddressFromBech32(path[1])
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
rsp, err = queryContractInfo(ctx, addr, *keeper)
case QueryListContractByCode:
codeID, err := strconv.ParseUint(path[1], 10, 64)
if err != nil {
return nil, sdkerrors.Wrapf(types.ErrInvalid, "code id: %s", err.Error())
}
rsp, err = queryContractListByCode(ctx, codeID, *keeper)
case QueryGetContractState:
if len(path) < 3 {
return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, "unknown data query endpoint")
}
return queryContractState(ctx, path[1], path[2], req.Data, keeper)
case QueryGetCode:
codeID, err := strconv.ParseUint(path[1], 10, 64)
if err != nil {
return nil, sdkerrors.Wrapf(types.ErrInvalid, "code id: %s", err.Error())
}
rsp, err = queryCode(ctx, codeID, keeper)
case QueryListCode:
rsp, err = queryCodeList(ctx, *keeper)
case QueryContractHistory:
contractAddr, err := sdk.AccAddressFromBech32(path[1])
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
rsp, err = queryContractHistory(ctx, contractAddr, *keeper)
default:
return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, "unknown data query endpoint")
}
if err != nil {
return nil, err
}
if rsp == nil || reflect.ValueOf(rsp).IsNil() {
return nil, nil
}
bz, err := json.MarshalIndent(rsp, "", " ")
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
}
func queryContractState(ctx sdk.Context, bech, queryMethod string, data []byte, keeper *Keeper) (json.RawMessage, error) {
contractAddr, err := sdk.AccAddressFromBech32(bech)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, bech)
}
var resultData []types.Model
switch queryMethod {
case QueryMethodContractStateAll:
// this returns a serialized json object (which internally encoded binary fields properly)
for iter := keeper.GetContractState(ctx, contractAddr); iter.Valid(); iter.Next() {
resultData = append(resultData, types.Model{
Key: iter.Key(),
Value: iter.Value(),
})
}
if resultData == nil {
resultData = make([]types.Model, 0)
}
case QueryMethodContractStateRaw:
// this returns the raw data from the state, base64-encoded
return keeper.QueryRaw(ctx, contractAddr, data), nil
case QueryMethodContractStateSmart:
// we enforce a subjective gas limit on all queries to avoid infinite loops
ctx = ctx.WithGasMeter(sdk.NewGasMeter(keeper.queryGasLimit))
// this returns raw bytes (must be base64-encoded)
return keeper.QuerySmart(ctx, contractAddr, data)
default:
return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, queryMethod)
}
bz, err := json.Marshal(resultData)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func queryCodeList(ctx sdk.Context, keeper Keeper) ([]types.CodeInfoResponse, error) {
var info []types.CodeInfoResponse
keeper.IterateCodeInfos(ctx, func(i uint64, res types.CodeInfo) bool {
info = append(info, types.CodeInfoResponse{
CodeID: i,
Creator: res.Creator,
DataHash: res.CodeHash,
Source: res.Source,
Builder: res.Builder,
})
return false
})
return info, nil
}
func queryContractHistory(ctx sdk.Context, contractAddr sdk.AccAddress, keeper Keeper) ([]types.ContractCodeHistoryEntry, error) {
history := keeper.GetContractHistory(ctx, contractAddr)
// redact response
for i := range history {
history[i].Updated = nil
}
return history, nil
}
func queryContractListByCode(ctx sdk.Context, codeID uint64, keeper Keeper) ([]types.ContractInfoWithAddress, error) {
var contracts []types.ContractInfoWithAddress
keeper.IterateContractInfo(ctx, func(addr sdk.AccAddress, info types.ContractInfo) bool {
if info.CodeID == codeID {
// and add the address
infoWithAddress := types.ContractInfoWithAddress{
Address: addr.String(),
ContractInfo: &info,
}
contracts = append(contracts, infoWithAddress)
}
return false
})
// now we sort them by AbsoluteTxPosition
sort.Slice(contracts, func(i, j int) bool {
this := contracts[i].ContractInfo.Created
other := contracts[j].ContractInfo.Created
if this.Equal(other) {
return strings.Compare(contracts[i].Address, contracts[j].Address) < 0
}
return this.LessThan(other)
})
for i := range contracts {
contracts[i].Created = nil
}
return contracts, nil
}