135 lines
3.0 KiB
Go
135 lines
3.0 KiB
Go
package photosapi
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import (
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"crypto"
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"encoding/base64"
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"errors"
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"net/http"
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"time"
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"github.com/gin-gonic/gin"
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"gopkg.in/validator.v2"
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"gorm.io/gorm"
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)
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// Errors
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var (
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ErrAccountExists = errors.New("account exists")
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ErrAccountAuth = errors.New("login or password incorrect")
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)
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// Model
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type Account struct {
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ID uint32 `gorm:"primary_key" json:"-"`
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Login string `gorm:"unique;size:64;not null" json:"login"`
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Password string `gorm:"-" json:"-"`
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EncryptedPassword string `gorm:"size:44;not null" json:"-"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"-"`
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}
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func (a *Account) BeforeCreate(tx *gorm.DB) error {
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if a.EncryptedPassword == "" {
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a.EncryptPassword()
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}
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return nil
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}
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func (a *Account) EncryptPassword() {
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sha1 := crypto.SHA256.New()
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sha1.Write([]byte(a.Password))
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a.EncryptedPassword = base64.StdEncoding.EncodeToString(sha1.Sum(nil))
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}
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func NewAccount(login string, password string) *Account {
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a := &Account{
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Login: login,
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Password: password,
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}
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a.EncryptPassword()
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return a
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}
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// Service
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type SignupOrLoginRequest struct {
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Login string `validate:"min=3,max=40,regexp=^[a-zA-Z0-9]*$"`
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Password string `validate:"min=8,max=40"`
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}
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func (s *Service) Signup(c *gin.Context) {
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var account *SignupOrLoginRequest
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if err := c.ShouldBindJSON(&account); err != nil {
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s.Error(c, http.StatusBadRequest, err)
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return
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}
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if err := validator.Validate(account); err != nil {
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s.Error(c, http.StatusExpectationFailed, err)
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return
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}
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var accountExists int64
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if err := s.DB.Model(&Account{}).Where("login = ?", account.Login).Count(&accountExists).Error; err != nil {
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s.Error(c, http.StatusInternalServerError, err)
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return
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}
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if accountExists > 0 {
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s.Error(c, http.StatusConflict, ErrAccountExists)
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return
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}
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if err := s.DB.Create(NewAccount(account.Login, account.Password)).Error; err != nil {
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s.Error(c, http.StatusConflict, err)
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"status": "success",
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})
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}
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func (s *Service) Login(c *gin.Context) {
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var account *SignupOrLoginRequest
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if err := c.ShouldBindJSON(&account); err != nil {
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s.Error(c, http.StatusBadRequest, err)
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return
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}
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session, err := NewSession(s.DB, account.Login, account.Password)
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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s.Error(c, http.StatusNotFound, ErrAccountAuth)
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} else {
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s.Error(c, http.StatusInternalServerError, err)
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}
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"status": "success",
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"token": session.Token,
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})
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}
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func (s *Service) Logout(c *gin.Context) {
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res := s.DB.Where("token = ?", c.GetString("token")).Delete(&Session{})
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if res.Error != nil {
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s.Error(c, http.StatusInternalServerError, res.Error)
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return
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}
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if res.RowsAffected == 0 {
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s.Error(c, http.StatusNotFound, ErrSessionNotFound)
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"status": "success",
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})
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}
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func (s *Service) AccountInit() {
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ac := s.Gin.Group("/account")
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ac.POST("/signup", s.Signup)
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ac.POST("/login", s.Login)
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ac.GET("/logout", s.RequireAuthToken, s.Logout)
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}
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