/
user.service.go
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/
user.service.go
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package services
import (
"context"
"encoding/json"
"errors"
"fmt"
"github.com/Lenstack/lensaas-server/microservices/authentication/internal/core/entities"
"github.com/Lenstack/lensaas-server/microservices/authentication/internal/core/repositories"
"github.com/Lenstack/lensaas-server/microservices/authentication/internal/utils"
"github.com/surrealdb/surrealdb.go"
"golang.org/x/oauth2"
"io"
)
type IUserService interface {
SignInWithCredentials(email string, password string) (accessToken string, refreshToken string, err error)
SignInWithOAuth(provider string, state string) (url string, err error)
SignInWithOAuthCallback(provider string, code string) (accessToken string, refreshToken string, err error)
SignUp(name string, email string, password string) (err error)
SignOut(userId string) (err error)
RefreshToken(userId string) (accessToken string, err error)
ForgotPassword(email string) (err error)
ResetPassword(userId string, password string) (err error)
Me(userId string) (user entities.User, err error)
VerifyEmail(userId string) (err error)
ResendEmailVerification(email string) (err error)
MFAGenerate(userId string) (qrCode string, err error)
MFAEnable(userId string) (qrCode string, err error)
MFADisable(userId string, code string) (err error)
CheckEmail(email string) (err error)
}
type UserService struct {
OauthClientConfig oauth2.Config
Jwt utils.Jwt
Bcrypt utils.Bcrypt
Email utils.Email
UserRepository repositories.UserRepository
}
func NewUserService(database *surrealdb.DB, jwt utils.Jwt, bcrypt utils.Bcrypt, email utils.Email) *UserService {
return &UserService{
UserRepository: repositories.UserRepository{
Database: database,
},
Jwt: jwt,
Bcrypt: bcrypt,
Email: email,
}
}
func (s *UserService) SignInWithCredentials(email string, password string) (accessToken string, refreshToken string, err error) {
// If user doesn't exist then return error user not found
userByEmail, err := s.UserRepository.FindByEmail(email)
if err != nil {
return "", "", errors.New("user not found")
}
// If user is disabled or not verified then return error user is disabled or not verified
if userByEmail.Disabled || userByEmail.Verified {
return "", "", errors.New("user is disabled or not verified")
}
// Compare password with hash
err = s.Bcrypt.ComparePassword(userByEmail.Password, password)
if err != nil {
return "", "", errors.New("invalid email or password")
}
// Generate access token and refresh token
accessToken, err = s.Jwt.GenerateToken(userByEmail.ID, s.Jwt.ExpirationTimeAccess)
if err != nil {
return "", "", err
}
refreshToken, err = s.Jwt.GenerateToken(userByEmail.ID, s.Jwt.ExpirationTimeRefresh)
if err != nil {
return "", "", err
}
// Update user last sign in date and ip address and user agent and device type
err = s.UserRepository.UpdateLastSignIn(userByEmail.ID)
if err != nil {
return "", "", errors.New("cannot update user last sign in")
}
return accessToken, refreshToken, nil
}
func (s *UserService) SignInWithOAuth(provider string, state string) (url string, err error) {
// Get oauth providers from config
oauthProviders := utils.NewOauth()
// Search provider in database and get client id and client secret
oauthProvider, err := oauthProviders.GetProvider(provider)
if err != nil {
return "", err
}
// Set oauth client config
s.OauthClientConfig = oauth2.Config{
ClientID: oauthProvider.Config.ClientId,
ClientSecret: oauthProvider.Config.ClientSecret,
RedirectURL: oauthProvider.Config.RedirectUrl,
Scopes: oauthProvider.Config.Scopes,
Endpoint: oauth2.Endpoint{
AuthURL: oauthProvider.Config.AuthUrl,
TokenURL: oauthProvider.Config.TokenUrl,
AuthStyle: oauth2.AuthStyleInParams,
},
}
// Generate auth code url with state
url = s.OauthClientConfig.AuthCodeURL(state, oauth2.AccessTypeOffline)
return url, nil
}
func (s *UserService) SignInWithOAuthCallback(provider string, code string) (accessToken string, refreshToken string, err error) {
// Get oauth providers from config
oauthProviders := utils.NewOauth()
// Search provider in database and get client id and client secret
oauthProvider, err := oauthProviders.GetProvider(provider)
if err != nil {
return "", "", err
}
// Exchange auth code for token
token, err := s.OauthClientConfig.Exchange(context.Background(), code)
if err != nil {
return "", "", errors.New("cannot exchange auth code for token")
}
// Get user information from oauth provider
response, err := s.OauthClientConfig.Client(context.Background(), token).Get(oauthProvider.Config.UserInfoUrl) // get url from oauth provider
if err != nil {
return "", "", errors.New("cannot get user info from oauth provider")
}
// Close response body
defer func(Body io.ReadCloser) {
err := Body.Close()
if err != nil {
return
}
}(response.Body)
// Decode user information
var userInformation map[string]interface{}
err = json.NewDecoder(response.Body).Decode(&userInformation)
if err != nil {
return "", "", errors.New("cannot decode user information")
}
// Get user information from oauth provider
information, err := oauthProviders.GetUserInformation(provider, userInformation)
if err != nil {
return "", "", err
}
// Search user in database by email
userByEmail, err := s.UserRepository.FindByEmail(information.Email)
if err != nil {
return "", "", errors.New("user not found")
}
fmt.Println(userByEmail)
// If user doesn't exist then create user in database
// Generate access token and refresh token with user id
accessToken, err = s.Jwt.GenerateToken(userByEmail.ID, s.Jwt.ExpirationTimeAccess)
if err != nil {
return "", "", err
}
refreshToken, err = s.Jwt.GenerateToken(userByEmail.ID, s.Jwt.ExpirationTimeRefresh)
if err != nil {
return "", "", err
}
// Create session in database with user id and access token and refresh token
// Update user last login date and ip address and user agent and device type
err = s.UserRepository.UpdateLastSignIn(userByEmail.ID)
if err != nil {
return "", "", errors.New("cannot update user last sign in")
}
return accessToken, refreshToken, nil
}
func (s *UserService) SignUp(name string, email string, password string) (err error) {
// Search user in database by email
userByEmail, err := s.UserRepository.FindByEmail(email)
if err != nil {
return errors.New("cannot find user by email")
}
if userByEmail.ID != "" {
return errors.New("user already exists")
}
// Hash password with bcrypt
hashedPassword, err := s.Bcrypt.HashPassword(password)
if err != nil {
return err
}
// Create user entity
user := entities.User{
Profile: entities.Profile{Name: name},
Email: email,
Password: hashedPassword,
}
// Create user in database
userCreated, err := s.UserRepository.Create(user)
if err != nil {
return errors.New("cannot create user")
}
// Generate email verification token with user id
emailVerificationToken, err := s.Jwt.GenerateToken(userCreated.ID, s.Jwt.ExpirationTimeEmailVerification)
if err != nil {
return err
}
// Create email verification token in database
err = s.UserRepository.CreateEmailVerificationToken(userCreated.ID, emailVerificationToken)
if err != nil {
return err
}
// Create email verification and add to queue
err = s.Email.Add(utils.Email{
From: s.Email.From,
To: []string{email},
Subject: "Verify email",
Body: "<h1>Verify email</h1>" + emailVerificationToken,
})
if err != nil {
return err
}
return nil
}
func (s *UserService) SignOut(userId string, refreshToken string) (err error) {
// Search session in database by user id and refresh token
err = s.UserRepository.FindByIdAndRefreshToken(userId, refreshToken)
if err != nil {
return errors.New("session not found")
}
// Revoked refresh token in database
err = s.UserRepository.RevokeRefreshToken(userId, refreshToken)
if err != nil {
return errors.New("cannot revoke refresh token")
}
return nil
}
func (s *UserService) RefreshToken(userId string, refreshToken string) (accessToken string, err error) {
// Search session in database by user id and refresh token
err = s.UserRepository.FindByIdAndRefreshToken(userId, refreshToken)
if err != nil {
return "", errors.New("session not found")
}
// Generate access token with user id
accessToken, err = s.Jwt.GenerateToken(userId, s.Jwt.ExpirationTimeAccess)
if err != nil {
return "", errors.New("cannot generate access token")
}
// Update session in database with access token
return accessToken, nil
}
func (s *UserService) ForgotPassword(email string) (err error) {
// Search user in database by email
userByEmail, err := s.UserRepository.FindByEmail(email)
if err != nil {
return err
}
// Generate reset password token
resetPasswordToken, err := s.Jwt.GenerateToken(userByEmail.ID, s.Jwt.ExpirationTimeResetPassword)
if err != nil {
return err
}
// Create reset password token in database
err = s.UserRepository.CreateResetPasswordToken(userByEmail.ID, resetPasswordToken)
if err != nil {
return err
}
// Send email with reset password token
err = s.Email.Add(utils.Email{
From: s.Email.From,
To: []string{email},
Subject: "Reset password",
Body: "<h1>Reset password</h1>" + resetPasswordToken,
})
if err != nil {
return err
}
return nil
}
func (s *UserService) ResetPassword(userId string, resetPasswordToken string, password string) (err error) {
// Search user in database by userId and reset password token
err = s.UserRepository.FindByIdAndRefreshToken(userId, resetPasswordToken)
if err != nil {
return errors.New("user not found")
}
// Encrypt password with bcrypt
hashedPassword, err := s.Bcrypt.HashPassword(password)
if err != nil {
return errors.New("cannot encrypt password")
}
// Update password in database
err = s.UserRepository.UpdatePassword(userId, hashedPassword)
if err != nil {
return errors.New("cannot update password")
}
// Send email with reset password confirmation
err = s.Email.Add(utils.Email{
From: s.Email.From,
To: []string{""},
Subject: "Reset password confirmation",
Body: "<h1>Reset password confirmation</h1>",
})
if err != nil {
return err
}
return nil
}
func (s *UserService) Me(userId string) (user entities.User, err error) {
return s.UserRepository.FindById(userId)
}
func (s *UserService) VerifyEmail(userId string) (err error) {
// Search user in database by userId
user, err := s.UserRepository.FindById(userId)
if err != nil {
return errors.New("user not found")
}
// If user is already verified then return error
if user.Verified {
return errors.New("user already verified")
}
// Update user verified in database
err = s.UserRepository.VerifyEmail(userId)
if err != nil {
return errors.New("cannot update user verified")
}
// Send email with email verification confirmation
err = s.Email.Add(utils.Email{
From: s.Email.From,
To: []string{""},
Subject: "Email verification confirmation",
Body: "<h1>Welcome to the club buddy</h1>",
})
if err != nil {
return err
}
return nil
}
func (s *UserService) ResendEmailVerification(email string) (err error) {
// Search user in database by userId
user, err := s.UserRepository.FindById(email)
if err != nil {
return errors.New("user not found")
}
// If user is verified then return error
if user.Verified {
return errors.New("user is already verified")
}
// Generate email verification token with user id
emailVerificationToken, err := s.Jwt.GenerateToken(user.ID, s.Jwt.ExpirationTimeEmailVerification)
if err != nil {
return err
}
// Save email verification token in database
err = s.UserRepository.CreateEmailVerificationToken(user.ID, emailVerificationToken)
if err != nil {
return err
}
// Create email verification and add to queue
err = s.Email.Add(utils.Email{
From: s.Email.From,
To: []string{user.Email},
Subject: "Verify email",
Body: "<h1>Verify email</h1>" + emailVerificationToken,
})
if err != nil {
return err
}
return nil
}
func (s *UserService) MFAGenerate(userId string) (qrCode string, token string, err error) {
// Search user in database by userId
user, err := s.UserRepository.FindById(userId)
if err != nil {
return "", "", errors.New("user not found")
}
fmt.Println(user.Email)
// Generate MFA QR Code and code
// Save MFA code in database
return qrCode, token, nil
}
func (s *UserService) MFAEnable(userId string) (err error) {
// Search user in database by userId
user, err := s.UserRepository.FindById(userId)
if err != nil {
return errors.New("user not found")
}
// Generate secret for MFA and save in database
fmt.Println(user.Email)
// Generate MFA QR Code
// Enable MFA in database
err = s.UserRepository.EnableMFA(userId)
if err != nil {
return errors.New("cannot enable MFA")
}
return nil
}
func (s *UserService) MFADisable(userId string, code string) (err error) {
// Search user in database by userId
user, err := s.UserRepository.FindById(userId)
if err != nil {
return errors.New("user not found")
}
// Verify MFA code
fmt.Println(user.Email)
// Disable MFA in database
err = s.UserRepository.DisableMFA(userId)
if err != nil {
return errors.New("cannot disable MFA")
}
return nil
}
func (s *UserService) CheckEmail(email string) (err error) {
// Search user in database by email
_, err = s.UserRepository.FindByEmail(email)
if err != nil {
return errors.New("user not found")
}
return nil
}