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Open-IM-Server/pkg/common/storage/controller/auth.go

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// Copyright © 2023 OpenIM. All rights reserved.
//
// 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 controller
import (
"context"
"github.com/golang-jwt/jwt/v4"
"github.com/openimsdk/open-im-server/v3/pkg/authverify"
"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache"
"github.com/openimsdk/protocol/constant"
"github.com/openimsdk/tools/errs"
"github.com/openimsdk/tools/tokenverify"
)
type AuthDatabase interface {
// If the result is empty, no error is returned.
GetTokensWithoutError(ctx context.Context, userID string, platformID int) (map[string]int, error)
// Create token
CreateToken(ctx context.Context, userID string, platformID int) (string, error)
SetTokenMapByUidPid(ctx context.Context, userID string, platformID int, m map[string]int) error
}
type authDatabase struct {
cache cache.TokenModel
accessSecret string
accessExpire int64
}
func NewAuthDatabase(cache cache.TokenModel, accessSecret string, accessExpire int64) AuthDatabase {
return &authDatabase{cache: cache, accessSecret: accessSecret, accessExpire: accessExpire}
}
// If the result is empty.
func (a *authDatabase) GetTokensWithoutError(ctx context.Context, userID string, platformID int) (map[string]int, error) {
return a.cache.GetTokensWithoutError(ctx, userID, platformID)
}
func (a *authDatabase) SetTokenMapByUidPid(ctx context.Context, userID string, platformID int, m map[string]int) error {
return a.cache.SetTokenMapByUidPid(ctx, userID, platformID, m)
}
// Create Token.
func (a *authDatabase) CreateToken(ctx context.Context, userID string, platformID int) (string, error) {
tokens, err := a.cache.GetTokensWithoutError(ctx, userID, platformID)
if err != nil {
return "", err
}
var deleteTokenKey []string
for k, v := range tokens {
_, err = tokenverify.GetClaimFromToken(k, authverify.Secret(a.accessSecret))
if err != nil || v != constant.NormalToken {
deleteTokenKey = append(deleteTokenKey, k)
}
}
if len(deleteTokenKey) != 0 {
err = a.cache.DeleteTokenByUidPid(ctx, userID, platformID, deleteTokenKey)
if err != nil {
return "", err
}
}
claims := tokenverify.BuildClaims(userID, platformID, a.accessExpire)
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
tokenString, err := token.SignedString([]byte(a.accessSecret))
if err != nil {
return "", errs.WrapMsg(err, "token.SignedString")
}
if err = a.cache.SetTokenFlagEx(ctx, userID, platformID, tokenString, constant.NormalToken); err != nil {
return "", err
}
return tokenString, nil
}