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[#207] sdk/client: Implement GetEACLWithSignature method

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GetEACL method of Client receives eACL table with signature, verifies the
signature and return the table. In some cases we need to receive table and
signature regardless of their correctness. New method GetEACLWithSignature
provides such an opportunity.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-11-24 13:22:07 +03:00 committed by Leonard Lyubich
parent 3ebfef9f94
commit 8c99d9d54c
1 changed files with 55 additions and 16 deletions
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71
pkg/client/container.go
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@ -3,6 +3,7 @@ package client
import (
"context"
"github.com/nspcc-dev/neofs-api-go/pkg"
"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
"github.com/nspcc-dev/neofs-api-go/pkg/container"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
@ -18,6 +19,13 @@ type delContainerSignWrapper struct {
body *v2container.DeleteRequestBody
}
// EACLWithSignature represents eACL table/signature pair.
type EACLWithSignature struct {
table *eacl.Table
sig *pkg.Signature
}
var errNilReponseBody = errors.New("response body is nil")
func (c delContainerSignWrapper) ReadSignedData(bytes []byte) ([]byte, error) {
@ -28,6 +36,16 @@ func (c delContainerSignWrapper) SignedDataSize() int {
return len(c.body.GetContainerID().GetValue())
}
// EACL returns eACL table.
func (e EACLWithSignature) EACL() *eacl.Table {
return e.table
}
// Signature returns table signature.
func (e EACLWithSignature) Signature() *pkg.Signature {
return e.sig
}
func (c Client) PutContainer(ctx context.Context, cnr *container.Container, opts ...CallOption) (*container.ID, error) {
switch c.remoteNode.Version.Major() {
case 2:
@ -77,9 +95,30 @@ func (c Client) DeleteContainer(ctx context.Context, id *container.ID, opts ...C
}
func (c Client) GetEACL(ctx context.Context, id *container.ID, opts ...CallOption) (*eacl.Table, error) {
v, err := c.getEACL(ctx, id, true, opts...)
if err != nil {
return nil, err
}
return v.table, nil
}
func (c Client) GetEACLWithSignature(ctx context.Context, id *container.ID, opts ...CallOption) (*EACLWithSignature, error) {
return c.getEACL(ctx, id, false, opts...)
}
func (c Client) getEACL(ctx context.Context, id *container.ID, verify bool, opts ...CallOption) (*EACLWithSignature, error) {
switch c.remoteNode.Version.Major() {
case 2:
return c.getEACLV2(ctx, id, opts...)
resp, err := c.getEACLV2(ctx, id, verify, opts...)
if err != nil {
return nil, err
}
return &EACLWithSignature{
table: eacl.NewTableFromV2(resp.GetEACL()),
sig: pkg.NewSignatureFromV2(resp.GetSignature()),
}, nil
default:
return nil, errUnsupportedProtocol
}
@ -316,7 +355,7 @@ func (c Client) delContainerV2(ctx context.Context, id *container.ID, opts ...Ca
}
}
func (c Client) getEACLV2(ctx context.Context, id *container.ID, opts ...CallOption) (*eacl.Table, error) {
func (c Client) getEACLV2(ctx context.Context, id *container.ID, verify bool, opts ...CallOption) (*v2container.GetExtendedACLResponseBody, error) {
// apply all available options
callOptions := c.defaultCallOptions()
@ -358,23 +397,23 @@ func (c Client) getEACLV2(ctx context.Context, id *container.ID, opts ...CallOpt
return nil, errNilReponseBody
}
if err := signature.VerifyDataWithSource(
v2signature.StableMarshalerWrapper{
SM: body.GetEACL(),
},
func() (key, sig []byte) {
s := body.GetSignature()
if verify {
if err := signature.VerifyDataWithSource(
v2signature.StableMarshalerWrapper{
SM: body.GetEACL(),
},
func() (key, sig []byte) {
s := body.GetSignature()
return s.GetKey(), s.GetSign()
},
signature.SignWithRFC6979(),
); err != nil {
return nil, errors.Wrap(err, "incorrect signature")
return s.GetKey(), s.GetSign()
},
signature.SignWithRFC6979(),
); err != nil {
return nil, errors.Wrap(err, "incorrect signature")
}
}
result := eacl.NewTableFromV2(body.GetEACL())
return result, nil
return body, nil
default:
return nil, errUnsupportedProtocol
}