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92 lines
2.8 KiB
92 lines
2.8 KiB
// Copyright 2020 guylewin, guy@lewin.co.il
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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 auth
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import (
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"fmt"
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"slices"
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"time"
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v1 "github.com/fatedier/frp/pkg/config/v1"
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"github.com/fatedier/frp/pkg/msg"
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"github.com/fatedier/frp/pkg/util/util"
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)
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type TokenAuthSetterVerifier struct {
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additionalAuthScopes []v1.AuthScope
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token string
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}
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func NewTokenAuth(additionalAuthScopes []v1.AuthScope, token string) *TokenAuthSetterVerifier {
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return &TokenAuthSetterVerifier{
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additionalAuthScopes: additionalAuthScopes,
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token: token,
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}
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}
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func (auth *TokenAuthSetterVerifier) SetLogin(loginMsg *msg.Login) error {
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loginMsg.PrivilegeKey = util.GetAuthKey(auth.token, loginMsg.Timestamp)
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return nil
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}
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func (auth *TokenAuthSetterVerifier) SetPing(pingMsg *msg.Ping) error {
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if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
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return nil
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}
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pingMsg.Timestamp = time.Now().Unix()
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pingMsg.PrivilegeKey = util.GetAuthKey(auth.token, pingMsg.Timestamp)
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return nil
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}
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func (auth *TokenAuthSetterVerifier) SetNewWorkConn(newWorkConnMsg *msg.NewWorkConn) error {
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if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
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return nil
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}
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newWorkConnMsg.Timestamp = time.Now().Unix()
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newWorkConnMsg.PrivilegeKey = util.GetAuthKey(auth.token, newWorkConnMsg.Timestamp)
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return nil
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}
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func (auth *TokenAuthSetterVerifier) VerifyLogin(m *msg.Login) error {
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if !util.ConstantTimeEqString(util.GetAuthKey(auth.token, m.Timestamp), m.PrivilegeKey) {
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return fmt.Errorf("token in login doesn't match token from configuration")
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}
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return nil
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}
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func (auth *TokenAuthSetterVerifier) VerifyPing(m *msg.Ping) error {
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if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
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return nil
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}
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if !util.ConstantTimeEqString(util.GetAuthKey(auth.token, m.Timestamp), m.PrivilegeKey) {
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return fmt.Errorf("token in heartbeat doesn't match token from configuration")
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}
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return nil
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}
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func (auth *TokenAuthSetterVerifier) VerifyNewWorkConn(m *msg.NewWorkConn) error {
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if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
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return nil
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}
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if !util.ConstantTimeEqString(util.GetAuthKey(auth.token, m.Timestamp), m.PrivilegeKey) {
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return fmt.Errorf("token in NewWorkConn doesn't match token from configuration")
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}
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return nil
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}
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