improve identity provider plugin

Signed-off-by: hongming <talonwan@yunify.com>

pkg/models/auth/token.go

@@ -0,0 +1,146 @@
+/*
+
+ Copyright 2020 The KubeSphere Authors.
+
+ 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 (
+	"fmt"
+	"k8s.io/apiserver/pkg/authentication/user"
+	"k8s.io/klog"
+	"kubesphere.io/kubesphere/pkg/apiserver/authentication/oauth"
+	authoptions "kubesphere.io/kubesphere/pkg/apiserver/authentication/options"
+	"kubesphere.io/kubesphere/pkg/apiserver/authentication/token"
+	"kubesphere.io/kubesphere/pkg/simple/client/cache"
+	"time"
+)
+
+type TokenManagementInterface interface {
+	// Verify verifies a token, and return a User if it's a valid token, otherwise return error
+	Verify(token string) (user.Info, error)
+	// IssueTo issues a token a User, return error if issuing process failed
+	IssueTo(user user.Info) (*oauth.Token, error)
+}
+
+type tokenOperator struct {
+	issuer  token.Issuer
+	options *authoptions.AuthenticationOptions
+	cache   cache.Interface
+}
+
+func NewTokenOperator(cache cache.Interface, options *authoptions.AuthenticationOptions) TokenManagementInterface {
+	operator := &tokenOperator{
+		issuer:  token.NewTokenIssuer(options.JwtSecret, options.MaximumClockSkew),
+		options: options,
+		cache:   cache,
+	}
+	return operator
+}
+
+func (t tokenOperator) Verify(tokenStr string) (user.Info, error) {
+	authenticated, tokenType, err := t.issuer.Verify(tokenStr)
+	if err != nil {
+		klog.Error(err)
+		return nil, err
+	}
+	if t.options.OAuthOptions.AccessTokenMaxAge == 0 ||
+		tokenType == token.StaticToken {
+		return authenticated, nil
+	}
+	if err := t.tokenCacheValidate(authenticated.GetName(), tokenStr); err != nil {
+		klog.Error(err)
+		return nil, err
+	}
+	return authenticated, nil
+}
+
+func (t tokenOperator) IssueTo(user user.Info) (*oauth.Token, error) {
+	accessTokenExpiresIn := t.options.OAuthOptions.AccessTokenMaxAge
+	refreshTokenExpiresIn := accessTokenExpiresIn + t.options.OAuthOptions.AccessTokenInactivityTimeout
+
+	accessToken, err := t.issuer.IssueTo(user, token.AccessToken, accessTokenExpiresIn)
+	if err != nil {
+		klog.Error(err)
+		return nil, err
+	}
+
+	refreshToken, err := t.issuer.IssueTo(user, token.RefreshToken, refreshTokenExpiresIn)
+	if err != nil {
+		klog.Error(err)
+		return nil, err
+	}
+
+	result := &oauth.Token{
+		AccessToken:  accessToken,
+		TokenType:    "Bearer",
+		RefreshToken: refreshToken,
+		ExpiresIn:    int(accessTokenExpiresIn.Seconds()),
+	}
+
+	if !t.options.MultipleLogin {
+		if err = t.revokeAllUserTokens(user.GetName()); err != nil {
+			klog.Error(err)
+			return nil, err
+		}
+	}
+
+	if accessTokenExpiresIn > 0 {
+		if err = t.cacheToken(user.GetName(), accessToken, accessTokenExpiresIn); err != nil {
+			klog.Error(err)
+			return nil, err
+		}
+		if err = t.cacheToken(user.GetName(), refreshToken, refreshTokenExpiresIn); err != nil {
+			klog.Error(err)
+			return nil, err
+		}
+	}
+
+	return result, nil
+}
+
+func (t tokenOperator) revokeAllUserTokens(username string) error {
+	pattern := fmt.Sprintf("kubesphere:user:%s:token:*", username)
+	if keys, err := t.cache.Keys(pattern); err != nil {
+		klog.Error(err)
+		return err
+	} else if len(keys) > 0 {
+		if err := t.cache.Del(keys...); err != nil {
+			klog.Error(err)
+			return err
+		}
+	}
+	return nil
+}
+
+func (t tokenOperator) tokenCacheValidate(username, token string) error {
+	key := fmt.Sprintf("kubesphere:user:%s:token:%s", username, token)
+	if exist, err := t.cache.Exists(key); err != nil {
+		return err
+	} else if !exist {
+		return fmt.Errorf("token not found in cache")
+	}
+	return nil
+}
+
+func (t tokenOperator) cacheToken(username, token string, duration time.Duration) error {
+	key := fmt.Sprintf("kubesphere:user:%s:token:%s", username, token)
+	if err := t.cache.Set(key, token, duration); err != nil {
+		klog.Error(err)
+		return err
+	}
+	return nil
+}