It is redundant to process object headers in responses w/o object field since result will be the same. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
231 lines
5.1 KiB
Go
231 lines
5.1 KiB
Go
package v2
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import (
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"errors"
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"fmt"
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"github.com/nspcc-dev/neofs-api-go/v2/acl"
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objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
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refsV2 "github.com/nspcc-dev/neofs-api-go/v2/refs"
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"github.com/nspcc-dev/neofs-api-go/v2/session"
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cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
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eaclSDK "github.com/nspcc-dev/neofs-sdk-go/eacl"
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"github.com/nspcc-dev/neofs-sdk-go/object"
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oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
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"github.com/nspcc-dev/neofs-sdk-go/user"
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)
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type Option func(*cfg)
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type cfg struct {
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storage ObjectStorage
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msg xHeaderSource
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cnr cid.ID
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obj *oid.ID
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}
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type ObjectStorage interface {
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Head(oid.Address) (*object.Object, error)
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}
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type Request interface {
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GetMetaHeader() *session.RequestMetaHeader
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}
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type Response interface {
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GetMetaHeader() *session.ResponseMetaHeader
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}
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type headerSource struct {
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requestHeaders []eaclSDK.Header
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objectHeaders []eaclSDK.Header
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}
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func defaultCfg() *cfg {
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return &cfg{
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storage: new(localStorage),
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}
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}
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func NewMessageHeaderSource(opts ...Option) (eaclSDK.TypedHeaderSource, error) {
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cfg := defaultCfg()
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for i := range opts {
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opts[i](cfg)
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}
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if cfg.msg == nil {
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return nil, errors.New("message is not provided")
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}
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objHdrs, err := cfg.objectHeaders()
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if err != nil {
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return nil, err
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}
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return headerSource{
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objectHeaders: objHdrs,
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requestHeaders: requestHeaders(cfg.msg),
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}, nil
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}
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func (h headerSource) HeadersOfType(typ eaclSDK.FilterHeaderType) ([]eaclSDK.Header, bool) {
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switch typ {
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default:
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return nil, true
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case eaclSDK.HeaderFromRequest:
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return h.requestHeaders, true
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case eaclSDK.HeaderFromObject:
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return h.objectHeaders, true
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}
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}
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type xHeader session.XHeader
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func (x xHeader) Key() string {
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return (*session.XHeader)(&x).GetKey()
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}
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func (x xHeader) Value() string {
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return (*session.XHeader)(&x).GetValue()
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}
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func requestHeaders(msg xHeaderSource) []eaclSDK.Header {
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return msg.GetXHeaders()
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}
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var errMissingOID = errors.New("object ID is missing")
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func (h *cfg) objectHeaders() ([]eaclSDK.Header, error) {
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switch m := h.msg.(type) {
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default:
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panic(fmt.Sprintf("unexpected message type %T", h.msg))
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case requestXHeaderSource:
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switch req := m.req.(type) {
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case
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*objectV2.GetRequest,
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*objectV2.HeadRequest:
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if h.obj == nil {
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return nil, errMissingOID
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}
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return h.localObjectHeaders(h.cnr, h.obj)
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case
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*objectV2.GetRangeRequest,
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*objectV2.GetRangeHashRequest,
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*objectV2.DeleteRequest:
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if h.obj == nil {
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return nil, errMissingOID
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}
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return addressHeaders(h.cnr, h.obj), nil
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case *objectV2.PutRequest:
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if v, ok := req.GetBody().GetObjectPart().(*objectV2.PutObjectPartInit); ok {
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oV2 := new(objectV2.Object)
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oV2.SetObjectID(v.GetObjectID())
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oV2.SetHeader(v.GetHeader())
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return headersFromObject(object.NewFromV2(oV2), h.cnr, h.obj), nil
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}
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case *objectV2.SearchRequest:
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cnrV2 := req.GetBody().GetContainerID()
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var cnr cid.ID
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if cnrV2 != nil {
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if err := cnr.ReadFromV2(*cnrV2); err != nil {
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return nil, fmt.Errorf("can't parse container ID: %w", err)
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}
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}
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return []eaclSDK.Header{cidHeader(cnr)}, nil
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}
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case responseXHeaderSource:
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switch resp := m.resp.(type) {
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case *objectV2.GetResponse:
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if v, ok := resp.GetBody().GetObjectPart().(*objectV2.GetObjectPartInit); ok {
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oV2 := new(objectV2.Object)
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oV2.SetObjectID(v.GetObjectID())
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oV2.SetHeader(v.GetHeader())
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return headersFromObject(object.NewFromV2(oV2), h.cnr, h.obj), nil
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}
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case *objectV2.HeadResponse:
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oV2 := new(objectV2.Object)
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var hdr *objectV2.Header
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switch v := resp.GetBody().GetHeaderPart().(type) {
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case *objectV2.ShortHeader:
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hdr = new(objectV2.Header)
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var idV2 refsV2.ContainerID
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h.cnr.WriteToV2(&idV2)
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hdr.SetContainerID(&idV2)
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hdr.SetVersion(v.GetVersion())
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hdr.SetCreationEpoch(v.GetCreationEpoch())
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hdr.SetOwnerID(v.GetOwnerID())
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hdr.SetObjectType(v.GetObjectType())
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hdr.SetPayloadLength(v.GetPayloadLength())
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case *objectV2.HeaderWithSignature:
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hdr = v.GetHeader()
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}
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oV2.SetHeader(hdr)
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return headersFromObject(object.NewFromV2(oV2), h.cnr, h.obj), nil
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}
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}
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return nil, nil
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}
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func (h *cfg) localObjectHeaders(cnr cid.ID, idObj *oid.ID) ([]eaclSDK.Header, error) {
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if idObj != nil {
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var addr oid.Address
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addr.SetContainer(cnr)
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addr.SetObject(*idObj)
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obj, err := h.storage.Head(addr)
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if err == nil {
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return headersFromObject(obj, cnr, idObj), nil
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}
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}
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// Still parse addressHeaders, because the errors is ignored in some places.
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return addressHeaders(cnr, idObj), nil
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}
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func cidHeader(idCnr cid.ID) sysObjHdr {
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return sysObjHdr{
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k: acl.FilterObjectContainerID,
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v: idCnr.EncodeToString(),
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}
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}
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func oidHeader(obj oid.ID) sysObjHdr {
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return sysObjHdr{
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k: acl.FilterObjectID,
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v: obj.EncodeToString(),
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}
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}
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func ownerIDHeader(ownerID user.ID) sysObjHdr {
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return sysObjHdr{
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k: acl.FilterObjectOwnerID,
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v: ownerID.EncodeToString(),
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}
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}
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func addressHeaders(cnr cid.ID, oid *oid.ID) []eaclSDK.Header {
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hh := make([]eaclSDK.Header, 0, 2)
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hh = append(hh, cidHeader(cnr))
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if oid != nil {
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hh = append(hh, oidHeader(*oid))
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}
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return hh
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}
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