mirror of
https://github.com/yunionio/cloudpods.git
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102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package clientman
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import (
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"encoding/base32"
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"fmt"
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"time"
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"github.com/pquerna/otp/totp"
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"yunion.io/x/onecloud/pkg/mcclient"
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"yunion.io/x/onecloud/pkg/mcclient/modules"
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)
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const MAX_OTP_RETRY = 5 // totp验证最大重试次数
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type ITotp interface {
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UpdateRetryCount()
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IsVerified() bool
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MarkVerified()
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VerifyTotpPasscode(s *mcclient.ClientSession, uid, passcode string) error
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}
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type ITotpManager interface {
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GetTotp(tid string) ITotp
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SaveTotp(tid string)
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}
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type STotp struct {
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RetryCount int `json:"retry_count"` // 重试计数器
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LockExpireTime time.Time `json:"lock_expire_time"` // 锁定时间
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Verified bool `json:"verified"` // 验证状态
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}
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func (self *STotp) UpdateRetryCount() {
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if self.RetryCount < MAX_OTP_RETRY {
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self.RetryCount += 1
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// 锁定
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if self.RetryCount >= MAX_OTP_RETRY {
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self.LockExpireTime = time.Now().Add(30 * time.Second)
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}
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} else {
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// 清零计数器，解除锁定
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if self.LockExpireTime.Before(time.Now()) {
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self.LockExpireTime = time.Now()
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self.RetryCount = 0
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}
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}
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}
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func (self *STotp) IsVerified() bool {
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return self.Verified
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}
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func (self *STotp) MarkVerified() {
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self.Verified = true
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}
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func (self *STotp) VerifyTotpPasscode(s *mcclient.ClientSession, uid, passcode string) error {
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secret, err := fetchUserTotpCredSecret(s, uid)
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if err != nil {
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return fmt.Errorf("fetch totp secrets error: %s", err.Error())
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}
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releaseSeconds := self.LockExpireTime.Unix() - time.Now().Unix()
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if releaseSeconds > 0 {
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return fmt.Errorf("locked, retry after %d seconds", releaseSeconds)
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}
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if totp.Validate(passcode, secret) {
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self.MarkVerified()
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return nil
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}
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self.UpdateRetryCount()
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return fmt.Errorf("invalid passcode")
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}
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// 获取用户TOTP credential 密码.
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func fetchUserTotpCredSecret(s *mcclient.ClientSession, uid string) (string, error) {
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secret, err := modules.Credentials.GetTotpSecret(s, uid)
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if err != nil {
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return "", err
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}
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return base32.StdEncoding.EncodeToString([]byte(secret)), nil
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}
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