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