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auth.go
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auth.go
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package service
import (
"context"
"github.com/go-kratos/kratos/v2/errors"
klog "github.com/go-kratos/kratos/v2/log"
"github.com/go-kratos/kratos/v2/transport"
"github.com/go-kratos/kratos/v2/transport/http"
"github.com/google/uuid"
"github.com/gorilla/csrf"
api2 "github.com/go-saas/kit/pkg/api"
"github.com/go-saas/kit/pkg/authn"
"github.com/go-saas/kit/pkg/authn/jwt"
"github.com/go-saas/kit/pkg/authn/session"
"github.com/go-saas/kit/pkg/authz/authz"
"github.com/go-saas/kit/pkg/conf"
"github.com/go-saas/kit/pkg/localize"
"github.com/go-saas/kit/pkg/server"
pb "github.com/go-saas/kit/user/api/auth/v1"
v1 "github.com/go-saas/kit/user/api/user/v1"
"github.com/go-saas/kit/user/private/biz"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"time"
)
type AuthService struct {
pb.UnimplementedAuthServer
um *biz.UserManager
rm *biz.RoleManager
token jwt.Tokenizer
config *jwt.TokenizerConfig
pwdValidator biz.PasswordValidator
refreshTokenRepo biz.RefreshTokenRepo
security *conf.Security
logger *klog.Helper
emailer biz.EmailSender
auth authz.Service
trust api2.TrustedContextValidator
}
func NewAuthService(um *biz.UserManager,
rm *biz.RoleManager,
token jwt.Tokenizer,
config *jwt.TokenizerConfig,
pwdValidator biz.PasswordValidator,
refreshTokenRepo biz.RefreshTokenRepo,
emailer biz.EmailSender,
security *conf.Security,
authz authz.Service,
trust api2.TrustedContextValidator,
logger klog.Logger) *AuthService {
return &AuthService{
um: um,
rm: rm,
token: token,
config: config,
pwdValidator: pwdValidator,
refreshTokenRepo: refreshTokenRepo,
emailer: emailer,
security: security,
auth: authz,
trust: trust,
logger: klog.NewHelper(klog.With(logger, "module", "AuthService")),
}
}
func (s *AuthService) Register(ctx context.Context, req *pb.RegisterAuthRequest) (*pb.RegisterAuthReply, error) {
return &pb.RegisterAuthReply{}, nil
}
func (s *AuthService) Login(ctx context.Context, req *pb.LoginAuthRequest) (*pb.LoginAuthReply, error) {
user, err := FindUserByUsernameAndValidatePwd(ctx, s.um, req.Username, req.Password)
if err != nil {
return nil, err
}
//login success
t, err := s.generateToken(ctx, user.ID)
if err != nil {
return nil, err
}
return &pb.LoginAuthReply{AccessToken: t.accessToken, Expires: t.expiresIn, ExpiresIn: t.expiresIn, TokenType: "Bearer", RefreshToken: t.refreshToken}, nil
}
func (s *AuthService) Token(ctx context.Context, req *pb.TokenRequest) (*pb.TokenReply, error) {
if req.GrantType == "" || req.GrantType == "password" {
res, err := s.Login(ctx, &pb.LoginAuthRequest{Username: req.Username, Password: req.Password})
if err != nil {
return nil, err
}
return &pb.TokenReply{
AccessToken: res.AccessToken,
TokenType: res.TokenType,
RefreshToken: res.RefreshToken,
ExpiresIn: res.ExpiresIn,
}, nil
}
if req.GrantType == "refresh_token" {
//refresh
//find token
if req.RefreshToken == "" {
return nil, errors.BadRequest("", "refreshToken can not be empty")
}
t, err := s.refresh(ctx, req.RefreshToken)
if err != nil {
return nil, err
}
return &pb.TokenReply{AccessToken: t.accessToken, ExpiresIn: t.expiresIn, TokenType: "Bearer", RefreshToken: t.refreshToken}, nil
}
return nil, status.Errorf(codes.Unimplemented, "not implemented")
}
func (s *AuthService) Refresh(ctx context.Context, req *pb.RefreshTokenAuthRequest) (*pb.RefreshTokenAuthReply, error) {
t, err := s.refresh(ctx, req.RefreshToken)
if err != nil {
return nil, err
}
return &pb.RefreshTokenAuthReply{AccessToken: t.accessToken, ExpiresIn: t.expiresIn, TokenType: "Bearer", RefreshToken: t.refreshToken}, nil
}
func (s *AuthService) SendPasswordlessToken(ctx context.Context, req *pb.PasswordlessTokenAuthRequest) (*pb.PasswordlessTokenAuthReply, error) {
return &pb.PasswordlessTokenAuthReply{}, nil
}
func (s *AuthService) LoginPasswordless(ctx context.Context, req *pb.LoginPasswordlessRequest) (*pb.LoginPasswordlessReply, error) {
return &pb.LoginPasswordlessReply{}, nil
}
func (s *AuthService) SendForgetPasswordToken(ctx context.Context, req *pb.ForgetPasswordTokenRequest) (*pb.ForgetPasswordTokenReply, error) {
if req.Phone == nil && req.Email == nil {
return nil, errors.BadRequest("", "")
}
if req.Phone != nil {
user, err := s.um.FindByPhone(ctx, req.Phone.Value)
if err != nil {
return nil, err
}
if user == nil {
return nil, v1.ErrorUserNotFound("")
}
//generate token
token, err := s.um.GeneratePhoneForgetPasswordToken(ctx, user)
if err != nil {
return nil, err
}
//TODO send token
s.logger.Infof("send forget password token %s to %s for user %s", token, *user.Phone, user.ID.String())
} else if req.Email != nil {
user, err := s.um.FindByEmail(ctx, req.Email.Value)
if err != nil {
return nil, err
}
if user == nil {
return nil, v1.ErrorUserNotFound("")
}
//generate token
token, err := s.um.GenerateEmailForgetPasswordToken(ctx, user)
if err != nil {
return nil, err
}
err = s.emailer.SendForgetPassword(ctx, *user.Email, token)
if err != nil {
return nil, err
}
}
return &pb.ForgetPasswordTokenReply{}, nil
}
func (s *AuthService) ForgetPassword(ctx context.Context, req *pb.ForgetPasswordRequest) (*pb.ForgetPasswordReply, error) {
if req.Phone == nil && req.Email == nil {
return nil, errors.BadRequest("", "")
}
var user *biz.User
var err error
if req.Phone != nil {
user, err = s.um.FindByPhone(ctx, req.Phone.Value)
if err != nil {
return nil, err
}
if user == nil {
return nil, v1.ErrorUserNotFound("")
}
if err := s.um.VerifyPhoneForgetPasswordToken(ctx, req.Phone.Value, req.Token); err != nil {
return nil, err
}
} else if req.Email != nil {
user, err = s.um.FindByPhone(ctx, req.Phone.Value)
if err != nil {
return nil, err
}
if user == nil {
return nil, v1.ErrorUserNotFound("")
}
if err := s.um.VerifyEmailForgetPasswordToken(ctx, req.Email.Value, req.Token); err != nil {
return nil, err
}
}
token, err := s.um.GenerateForgetPasswordToken(ctx, user)
if err != nil {
return nil, err
}
return &pb.ForgetPasswordReply{ChangePasswordToken: token}, nil
}
func (s *AuthService) ChangePasswordByForget(ctx context.Context, req *pb.ChangePasswordByForgetRequest) (*pb.ChangePasswordByForgetReply, error) {
//validate password
if req.NewPassword != req.ConfirmNewPassword {
return nil, v1.ErrorConfirmPasswordMismatch("")
}
err := s.um.ChangePasswordByToken(ctx, req.ChangePasswordToken, req.NewPassword)
if err != nil {
return nil, err
}
return &pb.ChangePasswordByForgetReply{}, nil
}
func (s *AuthService) ValidatePassword(ctx context.Context, req *pb.ValidatePasswordRequest) (*pb.ValidatePasswordReply, error) {
err := s.pwdValidator.Validate(ctx, req.Password)
if err != nil {
return nil, err
}
return &pb.ValidatePasswordReply{Ok: true}, nil
}
func (s *AuthService) ChangePasswordByPre(ctx context.Context, req *pb.ChangePasswordByPreRequest) (*pb.ChangePasswordByPreReply, error) {
ui, err := authn.ErrIfUnauthenticated(ctx)
if err != nil {
return nil, err
}
//validate password
if req.NewPassword != req.ConfirmNewPassword {
return nil, v1.ErrorConfirmPasswordMismatch("")
}
user, err := s.um.FindByID(ctx, ui.GetId())
if err != nil {
return nil, err
}
err = s.um.ChangePassword(ctx, user, req.PrePassword, req.NewPassword)
if err != nil {
return nil, err
}
return &pb.ChangePasswordByPreReply{}, nil
}
func (s *AuthService) GetCsrfToken(ctx context.Context, req *pb.GetCsrfTokenRequest) (*pb.GetCsrfTokenResponse, error) {
if t, ok := transport.FromServerContext(ctx); ok {
if ht, ok := t.(*http.Transport); ok {
token := csrf.Token(ht.Request())
t.ReplyHeader().Set("X-CSRF-Token", token)
return &pb.GetCsrfTokenResponse{CsrfToken: token}, nil
}
}
return nil, pb.ErrorInvalidOperation("csrf only supports http")
}
func (s *AuthService) RefreshRememberToken(ctx context.Context, req *pb.RefreshRememberTokenRequest) (*pb.RefreshRememberTokenReply, error) {
if ok, err := s.trust.Trusted(ctx); err != nil {
return nil, err
} else if !ok {
return nil, errors.Forbidden("", "")
}
duration := 0
if s.security != nil && s.security.RememberCookie != nil && s.security.RememberCookie.MaxAge != nil {
duration = int(s.security.RememberCookie.MaxAge.Value)
}
duration = session.RememberMeExpireSecondsOrDefault(duration)
user, newToken, err := s.um.RefreshRememberToken(ctx, req.RmToken, time.Duration(duration)*time.Second)
if err != nil {
return nil, err
}
return &pb.RefreshRememberTokenReply{UserId: user.ID.String(), NewRmToken: newToken}, nil
}
type tokenModel struct {
accessToken string
refreshToken string
expiresIn int32
}
func (s *AuthService) generateToken(ctx context.Context, userId uuid.UUID) (*tokenModel, error) {
var duration time.Duration = 0
if s.security.Jwt.RefreshTokenExpireIn != nil {
duration = s.security.Jwt.RefreshTokenExpireIn.AsDuration()
}
refreshToken := biz.NewRefreshToken(userId, duration, server.ClientUserAgent(ctx), server.ClientIP(ctx))
if err := s.refreshTokenRepo.Create(ctx, refreshToken); err != nil {
return nil, err
}
//access token
t, err := s.token.Issue(jwt.NewUserClaim(userId.String()), 0)
if err != nil {
return nil, err
}
exp := int32(s.config.ExpireDuration.Seconds())
return &tokenModel{
accessToken: t,
refreshToken: refreshToken.Token,
expiresIn: exp,
}, nil
}
func (s *AuthService) refresh(ctx context.Context, refreshToken string) (*tokenModel, error) {
//find
token, err := s.refreshTokenRepo.Find(ctx, refreshToken, true)
if err != nil {
return nil, err
}
if token == nil {
return nil, pb.ErrorRefreshTokenInvalid("")
}
if token.Valid() {
//token valid, regenerate
//find user again
user, err := s.um.FindByID(ctx, token.UserId.String())
if err != nil {
return nil, err
}
if user == nil {
return nil, pb.ErrorRefreshTokenInvalid("")
}
t, err := s.generateToken(ctx, user.ID)
if err != nil {
return nil, err
}
//delete pre
if err := s.refreshTokenRepo.Revoke(ctx, refreshToken, true); err != nil {
return nil, err
}
return &tokenModel{accessToken: t.accessToken, expiresIn: t.expiresIn, refreshToken: t.refreshToken}, nil
}
return nil, pb.ErrorRefreshTokenInvalid("")
}
func FindUserByUsernameAndValidatePwd(ctx context.Context, um *biz.UserManager, username, password string) (*biz.User, error) {
user, err := um.FindByIdentity(ctx, username)
if err != nil {
return nil, err
}
if user == nil {
return nil, pb.ErrorInvalidCredentialsLocalized(localize.FromContext(ctx), nil, nil)
}
// check password
err = um.CheckPassword(ctx, user, password)
if err != nil {
return nil, err
}
return user, nil
}