package models import ( "github.com/dgrijalva/jwt-go" "github.com/labstack/echo" "golang.org/x/crypto/bcrypt" ) // UserLogin Object to recive user credentials in JSON format type UserLogin struct { Username string `json:"username" form:"username"` Password string `json:"password" form:"password"` } // User holds information about an user type User struct { ID int64 `xorm:"int(11) autoincr not null unique pk" json:"id"` Username string `xorm:"varchar(250) not null unique" json:"username"` Password string `xorm:"varchar(250) not null" json:"-"` Email string `xorm:"varchar(250)" json:"email"` Created int64 `xorm:"created" json:"-"` Updated int64 `xorm:"updated" json:"-"` } // TableName returns the table name for users func (User) TableName() string { return "users" } // APIUserPassword represents a user object without timestamps and a json password field. type APIUserPassword struct { ID int64 `json:"id"` Username string `json:"username"` Password string `json:"password"` Email string `json:"email"` } // APIFormat formats an API User into a normal user struct func (apiUser *APIUserPassword) APIFormat() User { return User{ ID: apiUser.ID, Username: apiUser.Username, Password: apiUser.Password, Email: apiUser.Email, } } // GetUserByID gets informations about a user by its ID func GetUserByID(id int64) (user User, err error) { // Apparently xorm does otherwise look for all users but return only one, which leads to returing one even if the ID is 0 if id == 0 { return User{}, nil } return GetUser(User{ID: id}) } // GetUser gets a user object func GetUser(user User) (userOut User, err error) { userOut = user exists, err := x.Get(&userOut) if !exists { return User{}, ErrUserDoesNotExist{} } return userOut, err } // CheckUserCredentials checks user credentials func CheckUserCredentials(u *UserLogin) (User, error) { // Check if the user exists user, err := GetUser(User{Username: u.Username}) if err != nil { return User{}, err } // Check the users password err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(u.Password)) if err != nil { return User{}, err } return user, nil } // GetCurrentUser returns the current user based on its jwt token func GetCurrentUser(c echo.Context) (user User, err error) { jwtinf := c.Get("user").(*jwt.Token) claims := jwtinf.Claims.(jwt.MapClaims) userID, ok := claims["id"].(float64) if !ok { return user, ErrCouldNotGetUserID{} } user = User{ ID: int64(userID), Email: claims["email"].(string), Username: claims["username"].(string), } return }