pkg/auth/token.go

// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package auth

import "sync"

// GenericHolder is a simple implementation of TokenHandler which persists the token in
// an inmemory struct field which is guarded by a RWMutex.
type GenericHolder struct {
	mu    sync.RWMutex
	token string
}

// Load returns a persisted token scoped to the current authenticated user.
func (t *GenericHolder) Load() (string, error) { return "", nil }

// Update replaces the token with a new one.
func (t *GenericHolder) Update(s string) error {
	defer t.mu.Unlock()
	t.mu.Lock()
	t.token = s
	return nil
}

// Token returns current token.
func (t *GenericHolder) Token() string {
	defer t.mu.RUnlock()
	t.mu.RLock()
	return t.token
}