/
legacy_querier.go
59 lines (53 loc) · 1.36 KB
/
legacy_querier.go
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package keeper
import (
"encoding/hex"
"encoding/json"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
abci "github.com/tendermint/tendermint/abci/types"
"reflect"
)
const (
QueryEncryptedSeed = "seed"
QueryMasterCertificate = "master-cert"
)
// controls error output on querier - set true when testing/debugging
const debug = false
// NewQuerier 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
bz []byte
)
switch path[0] {
case QueryEncryptedSeed:
pubKey, err := hex.DecodeString(path[1])
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
bz, err = queryEncryptedSeed(ctx, pubKey, keeper)
if err != nil {
return nil, err
}
return bz, nil
case QueryMasterCertificate:
rsp, err = queryMasterKey(ctx, keeper)
if err != nil {
return nil, err
}
if rsp == nil || reflect.ValueOf(rsp).IsNil() {
return nil, nil
}
// why indent?
bz, err = json.Marshal(rsp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
default:
return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, "unknown data query endpoint")
}
}
}