x/wasm: add AllDenomMetadata BankQuery

app/app.go

@@ -584,7 +584,7 @@ func NewWasmApp(
 	// The last arguments can contain custom message handlers, and custom query handlers,
 	// if we want to allow any custom callbacks
 	// See https://github.com/CosmWasm/cosmwasm/blob/main/docs/CAPABILITIES-BUILT-IN.md
-	availableCapabilities := "iterator,staking,stargate,cosmwasm_1_1,cosmwasm_1_2"
+	availableCapabilities := "iterator,staking,stargate,cosmwasm_1_1,cosmwasm_1_2,cosmwasm_1_3"
 	app.WasmKeeper = wasm.NewKeeper(
 		appCodec,
 		keys[wasm.StoreKey],

go.mod

@@ -182,4 +182,6 @@ replace (
 
 	// pin version! 126854af5e6d has issues with the store so that queries fail
 	github.com/syndtr/goleveldb => github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
+
+	github.com/CosmWasm/wasmvm => ../wasmvm
 )

x/wasm/keeper/query_plugins.go

@@ -12,6 +12,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+	"github.com/cosmos/cosmos-sdk/types/query"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	distributiontypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
 	channeltypes "github.com/cosmos/ibc-go/v7/modules/core/04-channel/types"
@@ -201,6 +203,26 @@ func BankQuerier(bankKeeper types.BankViewKeeper) func(ctx sdk.Context, request
 			}
 			return json.Marshal(res)
 		}
+		if request.DenomMetadata != nil {
+			denomMetadata, ok := bankKeeper.GetDenomMetaData(ctx, request.DenomMetadata.Denom)
+			if !ok {
+				return nil, errorsmod.Wrap(sdkerrors.ErrNotFound, request.DenomMetadata.Denom)
+			}
+			res := wasmvmtypes.DenomMetadataResponse{
+				Metadata: ConvertSdkDenomMetadataToWasmDenomMetadata(denomMetadata),
+			}
+			return json.Marshal(res)
+		}
+		if request.AllDenomMetadata != nil {
+			bankQueryRes, err := bankKeeper.DenomsMetadata(ctx, ConvertToDenomsMetadataRequest(request.AllDenomMetadata))
+			if err != nil {
+				return nil, sdkerrors.ErrInvalidRequest
+			}
+			res := wasmvmtypes.AllDenomMetadataResponse{
+				Metadata: ConvertSdkDenomMetadatasToWasmDenomMetadatas(bankQueryRes.Metadatas),
+			}
+			return json.Marshal(res)
+		}
 		return nil, wasmvmtypes.UnsupportedRequest{Kind: "unknown BankQuery variant"}
 	}
 }
@@ -584,6 +606,53 @@ func ConvertSdkCoinToWasmCoin(coin sdk.Coin) wasmvmtypes.Coin {
 	}
 }
 
+func ConvertToDenomsMetadataRequest(wasmRequest *wasmvmtypes.AllDenomMetadataQuery) *banktypes.QueryDenomsMetadataRequest {
+	ret := &banktypes.QueryDenomsMetadataRequest{}
+	if wasmRequest.Pagination != nil {
+		ret.Pagination = &query.PageRequest{
+			Key:        wasmRequest.Pagination.Key,
+			Offset:     wasmRequest.Pagination.Offset,
+			Limit:      wasmRequest.Pagination.Limit,
+			CountTotal: wasmRequest.Pagination.CountTotal,
+			Reverse:    wasmRequest.Pagination.Reverse,
+		}
+	}
+	return ret
+}
+
+func ConvertSdkDenomMetadatasToWasmDenomMetadatas(metadata []banktypes.Metadata) []wasmvmtypes.DenomMetadata {
+	converted := make([]wasmvmtypes.DenomMetadata, len(metadata))
+	for i, m := range metadata {
+		converted[i] = ConvertSdkDenomMetadataToWasmDenomMetadata(m)
+	}
+	return converted
+}
+
+func ConvertSdkDenomMetadataToWasmDenomMetadata(metadata banktypes.Metadata) wasmvmtypes.DenomMetadata {
+	return wasmvmtypes.DenomMetadata{
+		Description: metadata.Description,
+		DenomUnits:  ConvertSdkDenomUnitsToWasmDenomUnits(metadata.DenomUnits),
+		Base:        metadata.Base,
+		Display:     metadata.Display,
+		Name:        metadata.Name,
+		Symbol:      metadata.Symbol,
+		URI:         metadata.URI,
+		URIHash:     metadata.URIHash,
+	}
+}
+
+func ConvertSdkDenomUnitsToWasmDenomUnits(denomUnits []*banktypes.DenomUnit) []*wasmvmtypes.DenomUnit {
+	converted := make([]*wasmvmtypes.DenomUnit, len(denomUnits))
+	for i, u := range denomUnits {
+		converted[i] = &wasmvmtypes.DenomUnit{
+			Denom:    u.Denom,
+			Exponent: u.Exponent,
+			Aliases:  u.Aliases,
+		}
+	}
+	return converted
+}
+
 // ConvertProtoToJSONMarshal  unmarshals the given bytes into a proto message and then marshals it to json.
 // This is done so that clients calling stargate queries do not need to define their own proto unmarshalers,
 // being able to use response directly by json marshalling, which is supported in cosmwasm.

x/wasm/keeper/query_plugins_test.go

@@ -1,6 +1,7 @@
 package keeper_test
 
 import (
+	"context"
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
@@ -356,6 +357,94 @@ func TestBankQuerierBalance(t *testing.T) {
 	assert.Equal(t, exp, got)
 }
 
+func TestBankQuerierMetadata(t *testing.T) {
+	metadata := banktypes.Metadata{
+		Name: "Test Token",
+		Base: "utest",
+		DenomUnits: []*banktypes.DenomUnit{
+			{
+				Denom:    "utest",
+				Exponent: 0,
+			},
+		},
+	}
+
+	mock := bankKeeperMock{GetDenomMetadataFn: func(ctx sdk.Context, denom string) (banktypes.Metadata, bool) {
+		if denom == "utest" {
+			return metadata, true
+		} else {
+			return banktypes.Metadata{}, false
+		}
+	}}
+
+	ctx := sdk.Context{}
+	q := keeper.BankQuerier(mock)
+	gotBz, gotErr := q(ctx, &wasmvmtypes.BankQuery{
+		DenomMetadata: &wasmvmtypes.DenomMetadataQuery{
+			Denom: "utest",
+		},
+	})
+	require.NoError(t, gotErr)
+	var got wasmvmtypes.DenomMetadataResponse
+	require.NoError(t, json.Unmarshal(gotBz, &got))
+	exp := wasmvmtypes.DenomMetadata{
+		Name: "Test Token",
+		Base: "utest",
+		DenomUnits: []*wasmvmtypes.DenomUnit{
+			{
+				Denom:    "utest",
+				Exponent: 0,
+			},
+		},
+	}
+	assert.Equal(t, exp, got)
+}
+
+func TestBankQuerierAllMetadata(t *testing.T) {
+	metadata := []banktypes.Metadata{
+		{
+			Name: "Test Token",
+			Base: "utest",
+			DenomUnits: []*banktypes.DenomUnit{
+				{
+					Denom:    "utest",
+					Exponent: 0,
+				},
+			},
+		},
+	}
+
+	mock := bankKeeperMock{GetDenomsMetadataFn: func(ctx context.Context, req *banktypes.QueryDenomsMetadataRequest) (*banktypes.QueryDenomsMetadataResponse, error) {
+		return &banktypes.QueryDenomsMetadataResponse{
+			Metadatas: metadata,
+		}, nil
+	}}
+
+	ctx := sdk.Context{}
+	q := keeper.BankQuerier(mock)
+	gotBz, gotErr := q(ctx, &wasmvmtypes.BankQuery{
+		AllDenomMetadata: &wasmvmtypes.AllDenomMetadataQuery{},
+	})
+	require.NoError(t, gotErr)
+	var got wasmvmtypes.AllDenomMetadataResponse
+	require.NoError(t, json.Unmarshal(gotBz, &got))
+	exp := wasmvmtypes.AllDenomMetadataResponse{
+		Metadata: []wasmvmtypes.DenomMetadata{
+			{
+				Name: "Test Token",
+				Base: "utest",
+				DenomUnits: []*wasmvmtypes.DenomUnit{
+					{
+						Denom:    "utest",
+						Exponent: 0,
+					},
+				},
+			},
+		},
+	}
+	assert.Equal(t, exp, got)
+}
+
 func TestContractInfoWasmQuerier(t *testing.T) {
 	myValidContractAddr := keeper.RandomBech32AccountAddress(t)
 	myCreatorAddr := keeper.RandomBech32AccountAddress(t)
@@ -673,9 +762,11 @@ func (m mockWasmQueryKeeper) GetCodeInfo(ctx sdk.Context, codeID uint64) *types.
 }
 
 type bankKeeperMock struct {
-	GetSupplyFn      func(ctx sdk.Context, denom string) sdk.Coin
-	GetBalanceFn     func(ctx sdk.Context, addr sdk.AccAddress, denom string) sdk.Coin
-	GetAllBalancesFn func(ctx sdk.Context, addr sdk.AccAddress) sdk.Coins
+	GetSupplyFn         func(ctx sdk.Context, denom string) sdk.Coin
+	GetBalanceFn        func(ctx sdk.Context, addr sdk.AccAddress, denom string) sdk.Coin
+	GetAllBalancesFn    func(ctx sdk.Context, addr sdk.AccAddress) sdk.Coins
+	GetDenomMetadataFn  func(ctx sdk.Context, denom string) (banktypes.Metadata, bool)
+	GetDenomsMetadataFn func(ctx context.Context, req *banktypes.QueryDenomsMetadataRequest) (*banktypes.QueryDenomsMetadataResponse, error)
 }
 
 func (m bankKeeperMock) GetSupply(ctx sdk.Context, denom string) sdk.Coin {
@@ -699,6 +790,20 @@ func (m bankKeeperMock) GetAllBalances(ctx sdk.Context, addr sdk.AccAddress) sdk
 	return m.GetAllBalancesFn(ctx, addr)
 }
 
+func (m bankKeeperMock) GetDenomMetaData(ctx sdk.Context, denom string) (banktypes.Metadata, bool) {
+	if m.GetDenomMetadataFn == nil {
+		panic("not expected to be called")
+	}
+	return m.GetDenomMetadataFn(ctx, denom)
+}
+
+func (m bankKeeperMock) DenomsMetadata(ctx context.Context, req *banktypes.QueryDenomsMetadataRequest) (*banktypes.QueryDenomsMetadataResponse, error) {
+	if m.GetDenomsMetadataFn == nil {
+		panic("not expected to be called")
+	}
+	return m.GetDenomsMetadataFn(ctx, req)
+}
+
 func TestConvertProtoToJSONMarshal(t *testing.T) {
 	testCases := []struct {
 		name                  string

x/wasm/types/expected_keepers.go

@@ -5,6 +5,7 @@ import (
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	capabilitytypes "github.com/cosmos/cosmos-sdk/x/capability/types"
 	distrtypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
@@ -19,6 +20,8 @@ type BankViewKeeper interface {
 	GetAllBalances(ctx sdk.Context, addr sdk.AccAddress) sdk.Coins
 	GetBalance(ctx sdk.Context, addr sdk.AccAddress, denom string) sdk.Coin
 	GetSupply(ctx sdk.Context, denom string) sdk.Coin
+	GetDenomMetaData(ctx sdk.Context, denom string) (banktypes.Metadata, bool)
+	DenomsMetadata(ctx context.Context, req *banktypes.QueryDenomsMetadataRequest) (*banktypes.QueryDenomsMetadataResponse, error)
 }
 
 // Burner is a subset of the sdk bank keeper methods