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package api
import (
"fmt"
"regexp"
"github.com/gin-gonic/gin"
"immae.eu/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Front/db"
)
const (
VALID_EMAIL_REGEX = `(?i)^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$`
)
func IsValidEmailAddress(email string) bool {
r := regexp.MustCompile(VALID_EMAIL_REGEX)
return r.MatchString(email)
}
type SignParams struct {
Email string
Password string
}
type SignResult struct {
Token string `json:"token"`
}
func (s SignParams) Validate() *Error {
if !IsValidEmailAddress(s.Email) {
return &Error{InvalidEmail, "invalid email", fmt.Errorf("'%v' is not a valid email", s.Email)}
}
if s.Password == "" {
return &Error{InvalidPassword, "invalid password", fmt.Errorf("invalid password")}
}
return nil
}
type SignupQuery struct {
In SignParams
}
func (q SignupQuery) ValidateParams() *Error {
return q.In.Validate()
}
func (q SignupQuery) Run() (interface{}, *Error) {
user, err := db.GetUserByEmail(q.In.Email)
if err != nil {
return nil, NewInternalError(err)
}
if user != nil {
return nil, &Error{EmailExists, "email already taken", fmt.Errorf("'%v' is already registered '%v'", q.In.Email, user)}
}
newUser := db.User{Email: q.In.Email, Status: db.AwaitingConfirmation}
newUser.PasswordHash, err = db.HashPassword(q.In.Password)
if err != nil {
return nil, NewInternalError(err)
}
err = db.InsertUser(&newUser)
if err != nil {
return nil, NewInternalError(err)
}
token, err := CreateJwtToken(newUser.Id)
if err != nil {
return nil, NewInternalError(fmt.Errorf("cannot create jwt token %v", err))
}
return SignResult{token}, nil
}
type SigninQuery struct {
In SignParams
}
func (q SigninQuery) ValidateParams() *Error {
return q.In.Validate()
}
func (q SigninQuery) Run() (interface{}, *Error) {
user, err := db.GetUserByEmail(q.In.Email)
if err != nil {
return nil, NewInternalError(err)
}
if user == nil {
return nil, &Error{InvalidCredentials, "invalid credentials", fmt.Errorf("no email '%v' found", q.In.Email)}
}
err = db.ValidatePassword(q.In.Password, user.PasswordHash)
if err != nil {
return nil, &Error{InvalidCredentials, "invalid credentials", err}
}
if user.Status != db.Confirmed {
return nil, &Error{UserNotConfirmed, "user awaiting admin validation", fmt.Errorf("user '%v' not confirmed", user)}
}
token, err := CreateJwtToken(user.Id)
if err != nil {
return nil, NewInternalError(err)
}
return SignResult{token}, nil
}
func UserConfirmed(c *gin.Context) *Error {
user, exists := c.Get("user")
if !exists {
return &Error{NotAuthorized, "not authorized", fmt.Errorf("no user key in context")}
}
if user.(db.User).Status != db.Confirmed {
return &Error{UserNotConfirmed, "user awaiting admin validation", fmt.Errorf("user '%v' not confirmed", user)}
}
return nil
}
func GetUser(c *gin.Context) db.User {
user, _ := c.Get("user")
return user.(db.User)
}
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