package client import ( "context" "errors" "fmt" "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" "github.com/nspcc-dev/neofs-api-go/rpc/client" "github.com/nspcc-dev/neofs-api-go/util/signature" v2container "github.com/nspcc-dev/neofs-api-go/v2/container" "github.com/nspcc-dev/neofs-api-go/v2/refs" rpcapi "github.com/nspcc-dev/neofs-api-go/v2/rpc" v2signature "github.com/nspcc-dev/neofs-api-go/v2/signature" ) // Container contains methods related to container and ACL. type Container interface { // PutContainer creates new container in the NeoFS network. PutContainer(context.Context, *container.Container, ...CallOption) (*container.ID, error) // GetContainer returns container by ID. GetContainer(context.Context, *container.ID, ...CallOption) (*container.Container, error) // ListContainers return container list with the provided owner. ListContainers(context.Context, *owner.ID, ...CallOption) ([]*container.ID, error) // DeleteContainer removes container from NeoFS network. DeleteContainer(context.Context, *container.ID, ...CallOption) error // GetEACL returns extended ACL for a given container. GetEACL(context.Context, *container.ID, ...CallOption) (*EACLWithSignature, error) // SetEACL sets extended ACL. SetEACL(context.Context, *eacl.Table, ...CallOption) error // AnnounceContainerUsedSpace announces amount of space which is taken by stored objects. AnnounceContainerUsedSpace(context.Context, []container.UsedSpaceAnnouncement, ...CallOption) error } type delContainerSignWrapper struct { body *v2container.DeleteRequestBody } // EACLWithSignature represents eACL table/signature pair. type EACLWithSignature struct { table *eacl.Table sig *pkg.Signature } func (c delContainerSignWrapper) ReadSignedData(bytes []byte) ([]byte, error) { return c.body.GetContainerID().GetValue(), nil } 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 *clientImpl) PutContainer(ctx context.Context, cnr *container.Container, opts ...CallOption) (*container.ID, error) { // apply all available options callOptions := c.defaultCallOptions() for i := range opts { opts[i](callOptions) } // set transport version cnr.SetVersion(pkg.SDKVersion()) // if container owner is not set, then use client key as owner if cnr.OwnerID() == nil { w, err := owner.NEO3WalletFromPublicKey(&callOptions.key.PublicKey) if err != nil { return nil, err } ownerID := new(owner.ID) ownerID.SetNeo3Wallet(w) cnr.SetOwnerID(ownerID) } reqBody := new(v2container.PutRequestBody) reqBody.SetContainer(cnr.ToV2()) // sign container signWrapper := v2signature.StableMarshalerWrapper{SM: reqBody.GetContainer()} err := signature.SignDataWithHandler(callOptions.key, signWrapper, func(key []byte, sig []byte) { containerSignature := new(refs.Signature) containerSignature.SetKey(key) containerSignature.SetSign(sig) reqBody.SetSignature(containerSignature) }, signature.SignWithRFC6979()) if err != nil { return nil, err } req := new(v2container.PutRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) err = v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return nil, err } resp, err := rpcapi.PutContainer(c.Raw(), req, client.WithContext(ctx)) if err != nil { return nil, err } err = v2signature.VerifyServiceMessage(resp) if err != nil { return nil, fmt.Errorf("can't verify response message: %w", err) } return container.NewIDFromV2(resp.GetBody().GetContainerID()), nil } // GetContainer receives container structure through NeoFS API call. // // Returns error if container structure is received but does not meet NeoFS API specification. func (c *clientImpl) GetContainer(ctx context.Context, id *container.ID, opts ...CallOption) (*container.Container, error) { // apply all available options callOptions := c.defaultCallOptions() for i := range opts { opts[i](callOptions) } reqBody := new(v2container.GetRequestBody) reqBody.SetContainerID(id.ToV2()) req := new(v2container.GetRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) err := v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return nil, err } resp, err := rpcapi.GetContainer(c.Raw(), req, client.WithContext(ctx)) if err != nil { return nil, fmt.Errorf("transport error: %w", err) } err = v2signature.VerifyServiceMessage(resp) if err != nil { return nil, fmt.Errorf("can't verify response message: %w", err) } return container.NewVerifiedFromV2(resp.GetBody().GetContainer()) } // GetVerifiedContainerStructure is a wrapper over Client.GetContainer method // which checks if the structure of the resulting container matches its identifier. // // Returns an error if container does not match the identifier. func GetVerifiedContainerStructure(ctx context.Context, c Client, id *container.ID, opts ...CallOption) (*container.Container, error) { cnr, err := c.GetContainer(ctx, id, opts...) if err != nil { return nil, err } if !container.CalculateID(cnr).Equal(id) { return nil, errors.New("container structure does not match the identifier") } return cnr, nil } func (c *clientImpl) ListContainers(ctx context.Context, ownerID *owner.ID, opts ...CallOption) ([]*container.ID, error) { // apply all available options callOptions := c.defaultCallOptions() for i := range opts { opts[i](callOptions) } if ownerID == nil { w, err := owner.NEO3WalletFromPublicKey(&callOptions.key.PublicKey) if err != nil { return nil, err } ownerID = new(owner.ID) ownerID.SetNeo3Wallet(w) } reqBody := new(v2container.ListRequestBody) reqBody.SetOwnerID(ownerID.ToV2()) req := new(v2container.ListRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) err := v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return nil, err } resp, err := rpcapi.ListContainers(c.Raw(), req, client.WithContext(ctx)) if err != nil { return nil, fmt.Errorf("transport error: %w", err) } err = v2signature.VerifyServiceMessage(resp) if err != nil { return nil, fmt.Errorf("can't verify response message: %w", err) } result := make([]*container.ID, 0, len(resp.GetBody().GetContainerIDs())) for _, cidV2 := range resp.GetBody().GetContainerIDs() { result = append(result, container.NewIDFromV2(cidV2)) } return result, nil } func (c *clientImpl) DeleteContainer(ctx context.Context, id *container.ID, opts ...CallOption) error { // apply all available options callOptions := c.defaultCallOptions() for i := range opts { opts[i](callOptions) } reqBody := new(v2container.DeleteRequestBody) reqBody.SetContainerID(id.ToV2()) // sign container err := signature.SignDataWithHandler(callOptions.key, delContainerSignWrapper{ body: reqBody, }, func(key []byte, sig []byte) { containerSignature := new(refs.Signature) containerSignature.SetKey(key) containerSignature.SetSign(sig) reqBody.SetSignature(containerSignature) }, signature.SignWithRFC6979()) if err != nil { return err } req := new(v2container.DeleteRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) err = v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return err } resp, err := rpcapi.DeleteContainer(c.Raw(), req, client.WithContext(ctx)) if err != nil { return fmt.Errorf("transport error: %w", err) } if err := v2signature.VerifyServiceMessage(resp); err != nil { return fmt.Errorf("can't verify response message: %w", err) } return nil } func (c *clientImpl) GetEACL(ctx context.Context, id *container.ID, opts ...CallOption) (*EACLWithSignature, error) { // apply all available options callOptions := c.defaultCallOptions() for i := range opts { opts[i](callOptions) } reqBody := new(v2container.GetExtendedACLRequestBody) reqBody.SetContainerID(id.ToV2()) req := new(v2container.GetExtendedACLRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) err := v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return nil, err } resp, err := rpcapi.GetEACL(c.Raw(), req, client.WithContext(ctx)) if err != nil { return nil, fmt.Errorf("transport error: %w", err) } err = v2signature.VerifyServiceMessage(resp) if err != nil { return nil, fmt.Errorf("can't verify response message: %w", err) } body := resp.GetBody() return &EACLWithSignature{ table: eacl.NewTableFromV2(body.GetEACL()), sig: pkg.NewSignatureFromV2(body.GetSignature()), }, nil } func (c *clientImpl) SetEACL(ctx context.Context, eacl *eacl.Table, opts ...CallOption) error { // apply all available options callOptions := c.defaultCallOptions() for i := range opts { opts[i](callOptions) } reqBody := new(v2container.SetExtendedACLRequestBody) reqBody.SetEACL(eacl.ToV2()) reqBody.GetEACL().SetVersion(pkg.SDKVersion().ToV2()) signWrapper := v2signature.StableMarshalerWrapper{SM: reqBody.GetEACL()} err := signature.SignDataWithHandler(callOptions.key, signWrapper, func(key []byte, sig []byte) { eaclSignature := new(refs.Signature) eaclSignature.SetKey(key) eaclSignature.SetSign(sig) reqBody.SetSignature(eaclSignature) }, signature.SignWithRFC6979()) if err != nil { return err } req := new(v2container.SetExtendedACLRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) err = v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return err } resp, err := rpcapi.SetEACL(c.Raw(), req, client.WithContext(ctx)) if err != nil { return fmt.Errorf("transport error: %w", err) } err = v2signature.VerifyServiceMessage(resp) if err != nil { return fmt.Errorf("can't verify response message: %w", err) } return nil } // AnnounceContainerUsedSpace used by storage nodes to estimate their container // sizes during lifetime. Use it only in storage node applications. func (c *clientImpl) AnnounceContainerUsedSpace( ctx context.Context, announce []container.UsedSpaceAnnouncement, opts ...CallOption) error { callOptions := c.defaultCallOptions() // apply all available options for i := range opts { opts[i](callOptions) } // convert list of SDK announcement structures into NeoFS-API v2 list v2announce := make([]*v2container.UsedSpaceAnnouncement, 0, len(announce)) for i := range announce { v2announce = append(v2announce, announce[i].ToV2()) } // prepare body of the NeoFS-API v2 request and request itself reqBody := new(v2container.AnnounceUsedSpaceRequestBody) reqBody.SetAnnouncements(v2announce) req := new(v2container.AnnounceUsedSpaceRequest) req.SetBody(reqBody) req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions)) // sign the request err := v2signature.SignServiceMessage(callOptions.key, req) if err != nil { return err } resp, err := rpcapi.AnnounceUsedSpace(c.Raw(), req, client.WithContext(ctx)) if err != nil { return fmt.Errorf("transport error: %w", err) } err = v2signature.VerifyServiceMessage(resp) if err != nil { return fmt.Errorf("can't verify response message: %w", err) } return nil }