forked from TrueCloudLab/frostfs-api-go
122 lines
2.6 KiB
Go
122 lines
2.6 KiB
Go
package eacl
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import (
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"crypto/ecdsa"
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v2acl "github.com/nspcc-dev/neofs-api-go/v2/acl"
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crypto "github.com/nspcc-dev/neofs-crypto"
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)
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// Target is a group of request senders to match EACL. Defined by role enum
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// and set of public keys.
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//
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// Target is compatible with v2 acl.EACLRecord.Target message.
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type Target struct {
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role Role
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keys []ecdsa.PublicKey
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}
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// SetKeys sets list of public keys to identify target subject.
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func (t *Target) SetKeys(keys ...ecdsa.PublicKey) {
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t.keys = keys
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}
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// Keys returns list of public keys to identify target subject.
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func (t Target) Keys() []ecdsa.PublicKey {
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return t.keys
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}
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// SetRole sets target subject's role class.
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func (t *Target) SetRole(r Role) {
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t.role = r
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}
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// Role returns target subject's role class.
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func (t Target) Role() Role {
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return t.role
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}
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// ToV2 converts Target to v2 acl.EACLRecord.Target message.
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func (t *Target) ToV2() *v2acl.Target {
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keys := make([][]byte, 0, len(t.keys))
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for i := range t.keys {
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key := crypto.MarshalPublicKey(&t.keys[i])
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keys = append(keys, key)
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}
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target := new(v2acl.Target)
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target.SetRole(t.role.ToV2())
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target.SetKeys(keys)
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return target
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}
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// NewTarget creates, initializes and returns blank Target instance.
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func NewTarget() *Target {
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return NewTargetFromV2(new(v2acl.Target))
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}
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// NewTargetFromV2 converts v2 acl.EACLRecord.Target message to Target.
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func NewTargetFromV2(target *v2acl.Target) *Target {
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t := new(Target)
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if target == nil {
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return t
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}
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t.role = RoleFromV2(target.GetRole())
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v2keys := target.GetKeys()
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t.keys = make([]ecdsa.PublicKey, 0, len(v2keys))
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for i := range v2keys {
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key := crypto.UnmarshalPublicKey(v2keys[i])
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t.keys = append(t.keys, *key)
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}
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return t
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}
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// Marshal marshals Target into a protobuf binary form.
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//
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// Buffer is allocated when the argument is empty.
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// Otherwise, the first buffer is used.
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func (t *Target) Marshal(b ...[]byte) ([]byte, error) {
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var buf []byte
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if len(b) > 0 {
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buf = b[0]
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}
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return t.ToV2().
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StableMarshal(buf)
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}
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// Unmarshal unmarshals protobuf binary representation of Target.
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func (t *Target) Unmarshal(data []byte) error {
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fV2 := new(v2acl.Target)
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if err := fV2.Unmarshal(data); err != nil {
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return err
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}
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*t = *NewTargetFromV2(fV2)
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return nil
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}
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// MarshalJSON encodes Target to protobuf JSON format.
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func (t *Target) MarshalJSON() ([]byte, error) {
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return t.ToV2().
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MarshalJSON()
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}
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// UnmarshalJSON decodes Target from protobuf JSON format.
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func (t *Target) UnmarshalJSON(data []byte) error {
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tV2 := new(v2acl.Target)
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if err := tV2.UnmarshalJSON(data); err != nil {
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return err
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}
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*t = *NewTargetFromV2(tV2)
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return nil
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}
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