package v2 import ( "fmt" eaclSDK "github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl" objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object" objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object" "github.com/nspcc-dev/neofs-api-go/v2/refs" "github.com/nspcc-dev/neofs-api-go/v2/session" "github.com/nspcc-dev/neofs-node/pkg/core/object" "github.com/nspcc-dev/neofs-node/pkg/services/object/acl/eacl" ) type Option func(*cfg) type cfg struct { storage ObjectStorage msg xHeaderSource } type ObjectStorage interface { Head(*objectSDK.Address) (*object.Object, error) } type Request interface { GetMetaHeader() *session.RequestMetaHeader } type Response interface { GetMetaHeader() *session.ResponseMetaHeader } type headerSource struct { *cfg } func defaultCfg() *cfg { return &cfg{ storage: new(localStorage), } } func NewMessageHeaderSource(opts ...Option) eacl.TypedHeaderSource { cfg := defaultCfg() for i := range opts { opts[i](cfg) } return &headerSource{ cfg: cfg, } } func (h *headerSource) HeadersOfType(typ eaclSDK.FilterHeaderType) ([]eacl.Header, bool) { switch typ { default: return nil, true case eaclSDK.HeaderFromRequest: return requestHeaders(h.msg), true case eaclSDK.HeaderFromObject: return h.objectHeaders() } } func requestHeaders(msg xHeaderSource) []eacl.Header { xHdrs := msg.GetXHeaders() res := make([]eacl.Header, 0, len(xHdrs)) for i := range xHdrs { res = append(res, xHdrs[i]) } return res } func (h *headerSource) objectHeaders() ([]eacl.Header, bool) { switch m := h.msg.(type) { default: panic(fmt.Sprintf("unexpected message type %T", h.msg)) case *requestXHeaderSource: switch req := m.req.(type) { case *objectV2.GetRequest: return h.localObjectHeaders(req.GetBody().GetAddress()) case *objectV2.DeleteRequest: return h.localObjectHeaders(req.GetBody().GetAddress()) case *objectV2.HeadRequest: return h.localObjectHeaders(req.GetBody().GetAddress()) case *objectV2.GetRangeRequest: return h.localObjectHeaders(req.GetBody().GetAddress()) case *objectV2.GetRangeHashRequest: return h.localObjectHeaders(req.GetBody().GetAddress()) case *objectV2.PutRequest: if v, ok := req.GetBody().GetObjectPart().(*objectV2.PutObjectPartInit); ok { oV2 := new(objectV2.Object) oV2.SetObjectID(v.GetObjectID()) oV2.SetHeader(v.GetHeader()) return headersFromObject(object.NewFromV2(oV2)), true } } case *responseXHeaderSource: switch resp := m.resp.(type) { case *objectV2.GetResponse: if v, ok := resp.GetBody().GetObjectPart().(*objectV2.GetObjectPartInit); ok { oV2 := new(objectV2.Object) oV2.SetObjectID(v.GetObjectID()) oV2.SetHeader(v.GetHeader()) return headersFromObject(object.NewFromV2(oV2)), true } case *objectV2.HeadResponse: oV2 := new(objectV2.Object) var hdr *objectV2.Header switch v := resp.GetBody().GetHeaderPart().(type) { case *objectV2.GetHeaderPartShort: hdr = new(objectV2.Header) h := v.GetShortHeader() hdr.SetVersion(h.GetVersion()) hdr.SetCreationEpoch(h.GetCreationEpoch()) hdr.SetOwnerID(h.GetOwnerID()) hdr.SetObjectType(h.GetObjectType()) hdr.SetPayloadLength(h.GetPayloadLength()) case *objectV2.GetHeaderPartFull: hdr = v.GetHeaderWithSignature().GetHeader() } oV2.SetHeader(hdr) return headersFromObject(object.NewFromV2(oV2)), true } } return nil, true } func (h *headerSource) localObjectHeaders(addr *refs.Address) ([]eacl.Header, bool) { obj, err := h.storage.Head(objectSDK.NewAddressFromV2(addr)) if err == nil { return headersFromObject(obj), true } return nil, false }