frostfs-api-go/session/store.go
Evgeniy Kulikov 1cf33e5ffd
initial
2019-11-18 16:34:06 +03:00

81 lines
1.5 KiB
Go

package session
import (
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"sync"
crypto "github.com/nspcc-dev/neofs-crypto"
"github.com/nspcc-dev/neofs-proto/refs"
)
type simpleStore struct {
*sync.RWMutex
tokens map[TokenID]*PToken
}
// TODO get curve from neofs-crypto
func defaultCurve() elliptic.Curve {
return elliptic.P256()
}
// NewSimpleStore creates simple token storage
func NewSimpleStore() TokenStore {
return &simpleStore{
RWMutex: new(sync.RWMutex),
tokens: make(map[TokenID]*PToken),
}
}
// New returns new token with specified parameters.
func (s *simpleStore) New(p TokenParams) *PToken {
tid, err := refs.NewUUID()
if err != nil {
return nil
}
key, err := ecdsa.GenerateKey(defaultCurve(), rand.Reader)
if err != nil {
return nil
}
if p.FirstEpoch > p.LastEpoch || p.OwnerID.Empty() {
return nil
}
t := &PToken{
mtx: new(sync.Mutex),
Token: Token{
ID: tid,
Header: VerificationHeader{PublicKey: crypto.MarshalPublicKey(&key.PublicKey)},
FirstEpoch: p.FirstEpoch,
LastEpoch: p.LastEpoch,
ObjectID: p.ObjectID,
OwnerID: p.OwnerID,
},
PrivateKey: key,
}
s.Lock()
s.tokens[t.ID] = t
s.Unlock()
return t
}
// Fetch tries to fetch a token with specified id.
func (s *simpleStore) Fetch(id TokenID) *PToken {
s.RLock()
defer s.RUnlock()
return s.tokens[id]
}
// Remove removes token with id from store.
func (s *simpleStore) Remove(id TokenID) {
s.Lock()
delete(s.tokens, id)
s.Unlock()
}