Created
May 3, 2018 12:28
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package models | |
import ( | |
"github.com/dgrijalva/jwt-go" | |
u "lens/utils" | |
"strings" | |
"github.com/jinzhu/gorm" | |
"os" | |
"golang.org/x/crypto/bcrypt" | |
) | |
/* | |
JWT claims struct | |
*/ | |
type Token struct { | |
UserId uint | |
jwt.StandardClaims | |
} | |
//a struct to rep user account | |
type Account struct { | |
gorm.Model | |
Email string `json:"email"` | |
Password string `json:"password"` | |
Token string `json:"token";sql:"-"` | |
} | |
//Validate incoming user details... | |
func (account *Account) Validate() (map[string] interface{}, bool) { | |
if !strings.Contains(account.Email, "@") { | |
return u.Message(false, "Email address is required"), false | |
} | |
if len(account.Password) < 6 { | |
return u.Message(false, "Password is required"), false | |
} | |
//Email must be unique | |
temp := &Account{} | |
//check for errors and duplicate emails | |
err := GetDB().Table("accounts").Where("email = ?", account.Email).First(temp).Error | |
if err != nil && err != gorm.ErrRecordNotFound { | |
return u.Message(false, "Connection error. Please retry"), false | |
} | |
if temp.Email != "" { | |
return u.Message(false, "Email address already in use by another user."), false | |
} | |
return u.Message(false, "Requirement passed"), true | |
} | |
func (account *Account) Create() (map[string] interface{}) { | |
if resp, ok := account.Validate(); !ok { | |
return resp | |
} | |
hashedPassword, _ := bcrypt.GenerateFromPassword([]byte(account.Password), bcrypt.DefaultCost) | |
account.Password = string(hashedPassword) | |
GetDB().Create(account) | |
if account.ID <= 0 { | |
return u.Message(false, "Failed to create account, connection error.") | |
} | |
//Create new JWT token for the newly registered account | |
tk := &Token{UserId: account.ID} | |
token := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), tk) | |
tokenString, _ := token.SignedString([]byte(os.Getenv("token_password"))) | |
account.Token = tokenString | |
account.Password = "" //delete password | |
response := u.Message(true, "Account has been created") | |
response["account"] = account | |
return response | |
} | |
func Login(email, password string) (map[string]interface{}) { | |
account := &Account{} | |
err := GetDB().Table("accounts").Where("email = ?", email).First(account).Error | |
if err != nil { | |
if err == gorm.ErrRecordNotFound { | |
return u.Message(false, "Email address not found") | |
} | |
return u.Message(false, "Connection error. Please retry") | |
} | |
err = bcrypt.CompareHashAndPassword([]byte(account.Password), []byte(password)) | |
if err != nil && err == bcrypt.ErrMismatchedHashAndPassword { //Password does not match! | |
return u.Message(false, "Invalid login credentials. Please try again") | |
} | |
//Worked! Logged In | |
account.Password = "" | |
//Create JWT token | |
tk := &Token{UserId: account.ID} | |
token := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), tk) | |
tokenString, _ := token.SignedString([]byte(os.Getenv("token_password"))) | |
account.Token = tokenString //Store the token in the response | |
resp := u.Message(true, "Logged In") | |
resp["account"] = account | |
return resp | |
} | |
func GetUser(u uint) *Account { | |
acc := &Account{} | |
GetDB().Table("accounts").Where("id = ?", u).First(acc) | |
if acc.Email == "" { //User not found! | |
return nil | |
} | |
acc.Password = "" | |
return acc | |
} |
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