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			7.7 KiB
		
	
	
	
		
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			240 lines
		
	
	
		
			7.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright © 2023 OpenIM. All rights reserved.
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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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	"context"
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	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
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	redis2 "github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache/redis"
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	"github.com/openimsdk/tools/db/redisutil"
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	"github.com/openimsdk/tools/utils/datautil"
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	"github.com/redis/go-redis/v9"
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	"github.com/openimsdk/open-im-server/v3/pkg/authverify"
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	"github.com/openimsdk/open-im-server/v3/pkg/common/prommetrics"
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	"github.com/openimsdk/open-im-server/v3/pkg/common/servererrs"
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	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/controller"
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	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
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	pbauth "github.com/openimsdk/protocol/auth"
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	"github.com/openimsdk/protocol/constant"
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	"github.com/openimsdk/protocol/msggateway"
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	"github.com/openimsdk/tools/discovery"
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	"github.com/openimsdk/tools/errs"
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	"github.com/openimsdk/tools/log"
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	"github.com/openimsdk/tools/tokenverify"
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	"google.golang.org/grpc"
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)
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type authServer struct {
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	authDatabase   controller.AuthDatabase
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	userRpcClient  *rpcclient.UserRpcClient
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	RegisterCenter discovery.SvcDiscoveryRegistry
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	config         *Config
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}
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type Config struct {
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	RpcConfig   config.Auth
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	RedisConfig config.Redis
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	Share       config.Share
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	Discovery   config.Discovery
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}
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func Start(ctx context.Context, config *Config, client discovery.SvcDiscoveryRegistry, server *grpc.Server) error {
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	rdb, err := redisutil.NewRedisClient(ctx, config.RedisConfig.Build())
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	if err != nil {
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		return err
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	}
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	userRpcClient := rpcclient.NewUserRpcClient(client, config.Share.RpcRegisterName.User, config.Share.IMAdminUserID)
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	pbauth.RegisterAuthServer(server, &authServer{
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		userRpcClient:  &userRpcClient,
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		RegisterCenter: client,
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		authDatabase: controller.NewAuthDatabase(
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			redis2.NewTokenCacheModel(rdb, config.RpcConfig.TokenPolicy.Expire),
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			config.Share.Secret,
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			config.RpcConfig.TokenPolicy.Expire,
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			config.Share.MultiLogin,
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		),
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		config: config,
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	})
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	return nil
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}
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func (s *authServer) GetAdminToken(ctx context.Context, req *pbauth.GetAdminTokenReq) (*pbauth.GetAdminTokenResp, error) {
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	resp := pbauth.GetAdminTokenResp{}
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	if req.Secret != s.config.Share.Secret {
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		return nil, errs.ErrNoPermission.WrapMsg("secret invalid")
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	}
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	if !datautil.Contain(req.UserID, s.config.Share.IMAdminUserID...) {
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		return nil, errs.ErrArgs.WrapMsg("userID is error.", "userID", req.UserID, "adminUserID", s.config.Share.IMAdminUserID)
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	}
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	if _, err := s.userRpcClient.GetUserInfo(ctx, req.UserID); err != nil {
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		return nil, err
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	}
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	token, err := s.authDatabase.CreateToken(ctx, req.UserID, int(constant.AdminPlatformID))
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	if err != nil {
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		return nil, err
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	}
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	prommetrics.UserLoginCounter.Inc()
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	resp.Token = token
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	resp.ExpireTimeSeconds = s.config.RpcConfig.TokenPolicy.Expire * 24 * 60 * 60
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	return &resp, nil
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}
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func (s *authServer) GetUserToken(ctx context.Context, req *pbauth.GetUserTokenReq) (*pbauth.GetUserTokenResp, error) {
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	if err := authverify.CheckAdmin(ctx, s.config.Share.IMAdminUserID); err != nil {
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		return nil, err
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	}
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	if req.PlatformID == constant.AdminPlatformID {
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		return nil, errs.ErrNoPermission.WrapMsg("platformID invalid. platformID must not be adminPlatformID")
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	}
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	resp := pbauth.GetUserTokenResp{}
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	if authverify.IsManagerUserID(req.UserID, s.config.Share.IMAdminUserID) {
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		return nil, errs.ErrNoPermission.WrapMsg("don't get Admin token")
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	}
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	if _, err := s.userRpcClient.GetUserInfo(ctx, req.UserID); err != nil {
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		return nil, err
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	}
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	token, err := s.authDatabase.CreateToken(ctx, req.UserID, int(req.PlatformID))
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	if err != nil {
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		return nil, err
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	}
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	resp.Token = token
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	resp.ExpireTimeSeconds = s.config.RpcConfig.TokenPolicy.Expire * 24 * 60 * 60
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	return &resp, nil
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}
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func (s *authServer) parseToken(ctx context.Context, tokensString string) (claims *tokenverify.Claims, err error) {
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	claims, err = tokenverify.GetClaimFromToken(tokensString, authverify.Secret(s.config.Share.Secret))
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	if err != nil {
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		return nil, errs.Wrap(err)
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	}
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	m, err := s.authDatabase.GetTokensWithoutError(ctx, claims.UserID, claims.PlatformID)
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	if err != nil {
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		return nil, err
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	}
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	if len(m) == 0 {
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		return nil, servererrs.ErrTokenNotExist.Wrap()
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	}
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	if v, ok := m[tokensString]; ok {
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		switch v {
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		case constant.NormalToken:
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			return claims, nil
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		case constant.KickedToken:
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			return nil, servererrs.ErrTokenKicked.Wrap()
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		default:
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			return nil, errs.Wrap(errs.ErrTokenUnknown)
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		}
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	}
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	return nil, servererrs.ErrTokenNotExist.Wrap()
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}
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func (s *authServer) ParseToken(
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	ctx context.Context,
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	req *pbauth.ParseTokenReq,
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) (resp *pbauth.ParseTokenResp, err error) {
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	resp = &pbauth.ParseTokenResp{}
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	claims, err := s.parseToken(ctx, req.Token)
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	if err != nil {
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		return nil, err
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	}
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	resp.UserID = claims.UserID
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	resp.PlatformID = int32(claims.PlatformID)
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	resp.ExpireTimeSeconds = claims.ExpiresAt.Unix()
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	return resp, nil
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}
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func (s *authServer) ForceLogout(ctx context.Context, req *pbauth.ForceLogoutReq) (*pbauth.ForceLogoutResp, error) {
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	if err := authverify.CheckAdmin(ctx, s.config.Share.IMAdminUserID); err != nil {
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		return nil, err
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	}
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	if err := s.forceKickOff(ctx, req.UserID, req.PlatformID); err != nil {
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		return nil, err
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	}
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	return &pbauth.ForceLogoutResp{}, nil
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}
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func (s *authServer) forceKickOff(ctx context.Context, userID string, platformID int32) error {
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	conns, err := s.RegisterCenter.GetConns(ctx, s.config.Share.RpcRegisterName.MessageGateway)
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	if err != nil {
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		return err
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	}
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	for _, v := range conns {
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		log.ZDebug(ctx, "forceKickOff", "conn", v.Target())
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		client := msggateway.NewMsgGatewayClient(v)
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		kickReq := &msggateway.KickUserOfflineReq{KickUserIDList: []string{userID}, PlatformID: platformID}
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		_, err := client.KickUserOffline(ctx, kickReq)
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		if err != nil {
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			log.ZError(ctx, "forceKickOff", err, "kickReq", kickReq)
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		}
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	}
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	m, err := s.authDatabase.GetTokensWithoutError(ctx, userID, int(platformID))
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	if err != nil && err != redis.Nil {
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		return err
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	}
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	for k := range m {
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		m[k] = constant.KickedToken
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		log.ZDebug(ctx, "set token map is ", "token map", m, "userID",
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			userID, "token", k)
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		err = s.authDatabase.SetTokenMapByUidPid(ctx, userID, int(platformID), m)
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		if err != nil {
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			return err
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		}
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	}
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	return nil
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}
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func (s *authServer) InvalidateToken(ctx context.Context, req *pbauth.InvalidateTokenReq) (*pbauth.InvalidateTokenResp, error) {
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	m, err := s.authDatabase.GetTokensWithoutError(ctx, req.UserID, int(req.PlatformID))
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	if err != nil && err != redis.Nil {
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		return nil, err
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	}
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	if m == nil {
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		return nil, errs.New("token map is empty").Wrap()
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	}
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	log.ZDebug(ctx, "get token from redis", "userID", req.UserID, "platformID",
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		req.PlatformID, "tokenMap", m)
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	for k := range m {
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		if k != req.GetPreservedToken() {
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			m[k] = constant.KickedToken
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		}
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	}
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	log.ZDebug(ctx, "set token map is ", "token map", m, "userID",
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		req.UserID, "token", req.GetPreservedToken())
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	err = s.authDatabase.SetTokenMapByUidPid(ctx, req.UserID, int(req.PlatformID), m)
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	if err != nil {
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		return nil, err
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	}
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	return &pbauth.InvalidateTokenResp{}, nil
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}
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func (s *authServer) KickTokens(ctx context.Context, req *pbauth.KickTokensReq) (*pbauth.KickTokensResp, error) {
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	if err := s.authDatabase.BatchSetTokenMapByUidPid(ctx, req.Tokens); err != nil {
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		return nil, err
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	}
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	return &pbauth.KickTokensResp{}, nil
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}
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