/
users.go
162 lines (132 loc) · 3.56 KB
/
users.go
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package services
import (
"crypto/sha1"
"errors"
"fmt"
"time"
"github.com/architectv/networking-course-project/backend/pkg/models"
"github.com/architectv/networking-course-project/backend/pkg/repositories"
"github.com/dgrijalva/jwt-go"
)
const (
salt = "hjqrhjqw124617ajfhajs"
signingKey = "qrkjk#4#%35FSFJlja#4353KSFjH"
tokenTTL = 12 * time.Hour
)
type tokenClaims struct {
jwt.StandardClaims
UserId int `json:"id"`
}
type UserService struct {
repo repositories.User
}
func NewUserService(repo repositories.User) *UserService {
return &UserService{repo: repo}
}
func (s *UserService) Get(id int) *models.ApiResponse {
r := &models.ApiResponse{}
user, err := s.repo.GetById(id)
if err != nil {
r.Error(StatusInternalServerError, err.Error())
return r
}
r.Set(StatusOK, "OK", Map{"user": user})
return r
}
func (s *UserService) GetAll() ([]*models.User, error) {
return s.repo.GetAll()
}
func (s *UserService) Update(id int, profile *models.UpdateUser) *models.ApiResponse {
r := &models.ApiResponse{}
if profile.Nickname != nil {
if err := s.checkByNickname(*profile.Nickname); err == nil {
r.Error(StatusConflict, "User is not exists")
return r
}
}
err := s.repo.Update(id, profile)
if err != nil {
r.Error(StatusInternalServerError, err.Error())
return r
}
r.Set(StatusOK, "OK", Map{})
return r
}
func (s *UserService) Create(user *models.User) *models.ApiResponse {
r := &models.ApiResponse{}
if err := s.checkByNickname(user.Nickname); err == nil {
r.Error(StatusConflict, "User already exists")
return r
}
// TODO: generatePasswordHash(password)
// user.Password = generatePasswordHash(user.Password)
id, err := s.repo.Create(user)
if err != nil {
r.Error(StatusInternalServerError, err.Error())
return r
}
r.Set(StatusOK, "OK", Map{userId: id})
return r
}
func (s *UserService) checkByNickname(nickname string) error {
_, err := s.repo.GetByNickname(nickname)
return err
}
func (s *UserService) GenerateToken(nickname, password string) *models.ApiResponse {
// TODO: generatePasswordHash(password)
r := &models.ApiResponse{}
user, err := s.repo.Get(nickname, password)
if err != nil {
r.Error(StatusConflict, err.Error())
return r
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, &tokenClaims{
jwt.StandardClaims{
ExpiresAt: time.Now().Add(tokenTTL).Unix(),
IssuedAt: time.Now().Unix(),
},
user.Id,
})
encToken, err := token.SignedString([]byte(signingKey))
if err != nil {
r.Error(StatusConflict, err.Error())
return r
}
r.Set(StatusOK, "OK", Map{"token": encToken})
return r
}
func (s *UserService) ParseToken(accessToken string) (int, error) {
token, err := jwt.ParseWithClaims(accessToken, &tokenClaims{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, errors.New("invalid signing method")
}
return []byte(signingKey), nil
})
if err != nil {
return 0, err
}
claims, ok := token.Claims.(*tokenClaims)
if !ok {
return 0, errors.New("token claims are not of type *tokenClaims")
}
err = s.repo.FindToken(accessToken)
if err == nil {
return 0, errors.New("Invalid token")
}
return claims.UserId, nil
}
func generatePasswordHash(password string) string {
hash := sha1.New()
hash.Write([]byte(password))
return fmt.Sprintf("%x", hash.Sum([]byte(salt)))
}
func (s *UserService) SignOut(token string) *models.ApiResponse {
r := &models.ApiResponse{}
_, err := s.repo.SignOut(token)
if err != nil {
r.Error(StatusInternalServerError, err.Error())
return r
}
r.Set(StatusOK, "OK", nil)
return r
}