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package api
import (
"fmt"
"regexp"
"strconv"
"time"
"github.com/dchest/passwordreset"
"github.com/gin-gonic/gin"
"git.immae.eu/Cryptoportfolio/Front.git/db"
)
const (
VALID_EMAIL_REGEX = `(?i)^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$`
)
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 UserIsAdmin(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).Role != db.RoleAdmin {
return &Error{NotAuthorized, "not authorized", fmt.Errorf("user '%v' is not admin", user)}
}
return nil
}
func GetUser(c *gin.Context) db.User {
user, _ := c.Get("user")
return user.(db.User)
}
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"`
IsAdmin bool `json:"isAdmin"`
}
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))
}
if CONFIG.FreeSMSUser != "" {
err := SendSMS(CONFIG.FreeSMSUser, CONFIG.FreeSMSPass, fmt.Sprintf("New user signup '%v'", q.In.Email))
if err != nil {
return nil, NewInternalError(err)
}
}
configMap := make(map[string]string)
configMap["key"] = ""
configMap["secret"] = ""
_, err = db.SetUserMarketConfig(newUser.Id, "poloniex", configMap)
if err != nil {
return nil, NewInternalError(err)
}
if MAIL_CONFIG.IsEnabled {
mailConfirmationToken := passwordreset.NewToken(q.In.Email, time.Hour*24*1, []byte(strconv.FormatUint(uint64(newUser.Status), 10)), PASSWORD_RESET_SECRET)
err = SendConfirmationMail(q.In.Email, mailConfirmationToken)
if err != nil {
return nil, NewInternalError(err)
}
}
return SignResult{token, newUser.Role == db.RoleAdmin}, 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}
}
token, err := CreateJwtToken(user.Id)
if err != nil {
return nil, NewInternalError(err)
}
return SignResult{token, user.Role == db.RoleAdmin}, nil
}
type ConfirmEmailQuery struct {
In struct {
Token string
}
}
func (q ConfirmEmailQuery) ValidateParams() *Error {
if q.In.Token == "" {
return &Error{BadRequest, "invalid token", fmt.Errorf("invalid token")}
}
return nil
}
func (q ConfirmEmailQuery) Run() (interface{}, *Error) {
var user *db.User
email, err := passwordreset.VerifyToken(q.In.Token, func(email string) ([]byte, error) {
var err error
user, err = db.GetUserByEmail(email)
if err != nil {
return nil, err
}
if user == nil {
return nil, fmt.Errorf("'%v' is not registered", email)
}
return []byte(strconv.FormatUint(uint64(user.Status), 10)), nil
}, PASSWORD_RESET_SECRET)
if err != nil && (err == passwordreset.ErrExpiredToken) {
return nil, &Error{BadRequest, "expired token", fmt.Errorf("expired token")}
} else if err != nil && (err == passwordreset.ErrMalformedToken || err == passwordreset.ErrWrongSignature) {
return nil, &Error{BadRequest, "wrong token", fmt.Errorf("wrong token")}
} else if err != nil {
return nil, NewInternalError(err)
}
if user == nil {
return nil, &Error{BadRequest, "bad request", fmt.Errorf("no user found for email '%v'", email)}
}
err = db.SetUserStatus(user, db.Confirmed)
if err != nil {
return nil, NewInternalError(err)
}
return nil, nil
}
type UserAccountQuery struct {
In struct {
User db.User
}
Out struct {
Email string `json:"email"`
}
}
func (q UserAccountQuery) ValidateParams() *Error {
return nil
}
func (q UserAccountQuery) Run() (interface{}, *Error) {
q.Out.Email = q.In.User.Email
return q.Out, nil
}
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