add: user auth accomplished

app/users/api/internal/logic/user/loginLogic.go

@@ -5,9 +5,11 @@ package user
 
 import (
 	"context"
-
+	"errors"
 	"juwan-backend/app/users/api/internal/svc"
 	"juwan-backend/app/users/api/internal/types"
+	"juwan-backend/app/users/rpc/usercenter"
+	"time"
 
 	"github.com/zeromicro/go-zero/core/logx"
 )
@@ -28,6 +30,24 @@ func NewLoginLogic(ctx context.Context, svcCtx *svc.ServiceContext) *LoginLogic
 }
 
 func (l *LoginLogic) Login(req *types.LoginReq) (resp *types.LoginResp, err error) {
+	if len(req.Username) < 3 || len(req.Password) > 20 || len(req.Password) < 8 || len(req.Password) > 20 {
+		return nil, errors.New("the information is illegal")
+	}
 
-	return &types.LoginResp{}, nil
+	res, err := l.svcCtx.UserRpc.Login(l.ctx, &usercenter.LoginReq{
+		Username: req.Username,
+		Passwd:   req.Password,
+	})
+	if err != nil {
+		logx.Errorf("rpc login err: %v", err)
+		return nil, errors.New("login fail")
+	}
+
+	return &types.LoginResp{
+		UserId:   res.Id,
+		Username: res.Username,
+		Email:    res.Email,
+		Token:    res.Token,
+		Expires:  int64((7 * 24 * time.Hour).Seconds()),
+	}, nil
 }