Files
cloudpods/pkg/mcclient/auth/session_cache.go
2021-02-23 15:29:12 +08:00

73 lines
1.6 KiB
Go

// Copyright 2019 Yunion
//
// Licensed 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 (
"context"
"sync"
"time"
"yunion.io/x/onecloud/pkg/mcclient"
)
type SessionCache struct {
mu sync.RWMutex
session *mcclient.ClientSession
Region string
APIVersion string
// EarlyRefresh tells the cache how early to fetch a new session before
// actual expiration of the old
EarlyRefresh time.Duration
Token mcclient.TokenCredential
UseAdminToken bool
}
func (sc *SessionCache) getToken() mcclient.TokenCredential {
if sc.Token != nil {
return sc.Token
}
if sc.UseAdminToken {
return manager.adminCredential
}
return nil
}
func (sc *SessionCache) Get(ctx context.Context) *mcclient.ClientSession {
mu := &sc.mu
{
mu.RLock()
s := sc.session
mu.RUnlock()
if s != nil {
token := s.GetToken()
expires := token.GetExpires()
if time.Now().Add(sc.EarlyRefresh).After(expires) {
return s
}
}
}
mu.Lock()
defer mu.Unlock()
token := sc.getToken()
sc.session = GetSession(ctx, token, sc.Region, sc.APIVersion)
return sc.session
}