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token_store.go
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/
token_store.go
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package etcd
import (
"context"
"encoding/json"
"errors"
"fmt"
"github.com/coreos/etcd/clientv3"
jwt "github.com/dgrijalva/jwt-go"
"github.com/sensu/sensu-go/api/core/v2"
"github.com/sensu/sensu-go/backend/store"
"github.com/sensu/sensu-go/types"
)
func getTokenPath(subject, id string) string {
return fmt.Sprintf("%s/tokens/%s/%s", EtcdRoot, subject, id)
}
// AllowTokens adds the provided tokens to the JWT access list
func (s *Store) AllowTokens(tokens ...*jwt.Token) error {
claims := make([]*v2.Claims, len(tokens))
// Get the claims for each tokens
for i, token := range tokens {
if c, ok := token.Claims.(*v2.Claims); ok {
claims[i] = c
continue
}
return errors.New("could not parse all token claims")
}
// Construct the list of operations for this transaction
ops := make([]clientv3.Op, len(tokens))
for i := range ops {
bytes, err := json.Marshal(claims[i])
if err != nil {
return err
}
ops[i] = clientv3.OpPut(getTokenPath(claims[i].Subject, claims[i].Id), string(bytes))
}
res, err := s.client.Txn(context.TODO()).Then(ops...).Commit()
if err != nil {
return err
}
if !res.Succeeded {
return fmt.Errorf("could not allow all tokens")
}
return nil
}
// RevokeTokens removes the provided tokens from the JWT access list
func (s *Store) RevokeTokens(claims ...*v2.Claims) error {
// Construct the list of operations for this transaction
ops := make([]clientv3.Op, len(claims))
for i := range ops {
ops[i] = clientv3.OpDelete(getTokenPath(claims[i].Subject, claims[i].Id))
}
res, err := s.client.Txn(context.TODO()).Then(ops...).Commit()
if err != nil {
return err
}
if !res.Succeeded {
return fmt.Errorf("could not revoke all tokens")
}
return nil
}
// GetToken gets a Claims.
func (s *Store) GetToken(subject, id string) (*types.Claims, error) {
key := getTokenPath(subject, id)
resp, err := s.client.Get(context.TODO(), key, clientv3.WithLimit(1))
if err != nil {
return nil, err
}
if len(resp.Kvs) != 1 {
return nil, &store.ErrNotFound{Key: key}
}
claims := &types.Claims{}
err = json.Unmarshal(resp.Kvs[0].Value, claims)
if err != nil {
return nil, err
}
return claims, nil
}