frostfs-node/pkg/services/object/acl/eacl/v2/object.go

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package v2
import (
"strconv"
"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
eaclSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
)
type sysObjHdr struct {
k, v string
}
func (s sysObjHdr) Key() string {
return s.k
}
func (s sysObjHdr) Value() string {
return s.v
}
func u64Value(v uint64) string {
return strconv.FormatUint(v, 10)
}
func headersFromObject(obj *object.Object, cnr cid.ID, oid *oid.ID) []eaclSDK.Header {
var count int
for obj := obj; obj != nil; obj = obj.Parent() {
count += 9 + len(obj.Attributes())
}
res := make([]eaclSDK.Header, 0, count)
for ; obj != nil; obj = obj.Parent() {
res = append(res,
cidHeader(cnr),
// creation epoch
sysObjHdr{
k: acl.FilterObjectCreationEpoch,
v: u64Value(obj.CreationEpoch()),
},
// payload size
sysObjHdr{
k: acl.FilterObjectPayloadLength,
v: u64Value(obj.PayloadSize()),
},
// object version
sysObjHdr{
k: acl.FilterObjectVersion,
v: obj.Version().String(),
},
// object type
sysObjHdr{
k: acl.FilterObjectType,
v: obj.Type().String(),
},
)
if oid != nil {
res = append(res, oidHeader(*oid))
}
if idOwner := obj.OwnerID(); idOwner != nil {
res = append(res, ownerIDHeader(*idOwner))
}
cs, ok := obj.PayloadChecksum()
if ok {
res = append(res, sysObjHdr{
k: acl.FilterObjectPayloadHash,
v: cs.String(),
})
}
cs, ok = obj.PayloadHomomorphicHash()
if ok {
res = append(res, sysObjHdr{
k: acl.FilterObjectHomomorphicHash,
v: cs.String(),
})
}
attrs := obj.Attributes()
for i := range attrs {
res = append(res, &attrs[i]) // only pointer attrs can implement eaclSDK.Header interface
}
}
return res
}