2021-01-25 08:41:30 -08:00
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package keeper
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import (
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"context"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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proto "github.com/gogo/protobuf/proto"
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"github.com/cosmos/cosmos-sdk/codec"
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codectypes "github.com/cosmos/cosmos-sdk/codec/types"
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"github.com/cosmos/cosmos-sdk/store/prefix"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/query"
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"github.com/cosmos/cosmos-sdk/x/authz/types"
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)
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var _ types.QueryServer = Keeper{}
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// Authorizations implements the Query/Authorizations gRPC method.
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func (k Keeper) Authorizations(c context.Context, req *types.QueryAuthorizationsRequest) (*types.QueryAuthorizationsResponse, error) {
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if req == nil {
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return nil, status.Errorf(codes.InvalidArgument, "empty request")
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}
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granter, err := sdk.AccAddressFromBech32(req.Granter)
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if err != nil {
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return nil, err
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}
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grantee, err := sdk.AccAddressFromBech32(req.Grantee)
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if err != nil {
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return nil, err
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}
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ctx := sdk.UnwrapSDKContext(c)
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store := ctx.KVStore(k.storeKey)
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key := types.GetAuthorizationStoreKey(grantee, granter, "")
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authStore := prefix.NewStore(store, key)
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var authorizations []*types.AuthorizationGrant
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pageRes, err := query.FilteredPaginate(authStore, req.Pagination, func(key []byte, value []byte, accumulate bool) (bool, error) {
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auth, err := unmarshalAuthorization(k.cdc, value)
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if err != nil {
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return false, err
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}
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auth1 := auth.GetAuthorizationGrant()
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if accumulate {
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msg, ok := auth1.(proto.Message)
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if !ok {
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return false, status.Errorf(codes.Internal, "can't protomarshal %T", msg)
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}
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authorizationAny, err := codectypes.NewAnyWithValue(msg)
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if err != nil {
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return false, status.Errorf(codes.Internal, err.Error())
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}
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authorizations = append(authorizations, &types.AuthorizationGrant{
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Authorization: authorizationAny,
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Expiration: auth.Expiration,
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})
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}
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return true, nil
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})
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if err != nil {
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return nil, err
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}
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return &types.QueryAuthorizationsResponse{
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Authorizations: authorizations,
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Pagination: pageRes,
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}, nil
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}
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// unmarshal an authorization from a store value
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2021-04-29 03:46:22 -07:00
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func unmarshalAuthorization(cdc codec.BinaryCodec, value []byte) (v types.AuthorizationGrant, err error) {
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err = cdc.Unmarshal(value, &v)
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2021-01-25 08:41:30 -08:00
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return v, err
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}
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// Authorization implements the Query/Authorization gRPC method.
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func (k Keeper) Authorization(c context.Context, req *types.QueryAuthorizationRequest) (*types.QueryAuthorizationResponse, error) {
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if req == nil {
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return nil, status.Errorf(codes.InvalidArgument, "empty request")
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}
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if req.MethodName == "" {
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return nil, status.Errorf(codes.InvalidArgument, "empty method-name")
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}
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granter, err := sdk.AccAddressFromBech32(req.Granter)
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if err != nil {
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return nil, err
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}
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grantee, err := sdk.AccAddressFromBech32(req.Grantee)
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if err != nil {
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return nil, err
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}
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ctx := sdk.UnwrapSDKContext(c)
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authorization, expiration := k.GetOrRevokeAuthorization(ctx, grantee, granter, req.MethodName)
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if authorization == nil {
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return nil, status.Errorf(codes.NotFound, "no authorization found for %s type", req.MethodName)
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}
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authorizationAny, err := codectypes.NewAnyWithValue(authorization)
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if err != nil {
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return nil, status.Errorf(codes.Internal, err.Error())
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}
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return &types.QueryAuthorizationResponse{
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Authorization: &types.AuthorizationGrant{
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Authorization: authorizationAny,
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Expiration: expiration,
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},
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}, nil
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}
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