// GenerateJWTToken generates a JWT token for a given UserID and signs it with
// the given private key. The token will be valid for 3 days.
func GenerateJWTToken(user models.User) (string, error) {
if user.PrivateKey == "" {
privateKey, err := GenerateNewPrivateKey()
if err != nil {
return "", err
}
user.PrivateKey = PrivateKeyToString(privateKey)
user.Save()
if err != nil {
return "", err
}
}
privateKey, err := StringToPrivateKey(user.PrivateKey)
if err != nil {
return "", err
}
token := jwt.New(jwt.SigningMethodRS256)
token.Claims["user"] = user.ID
token.Header["user"] = user.ID
token.Claims["exp"] = time.Now().Add(time.Hour * 72).Unix()
token.Header["exp"] = token.Claims["exp"]
tokenString, err := token.SignedString(privateKey)
return tokenString, err
}
// CreateDeviceGroup creates a new Device group on Google Cloud Messaging
func CreateDeviceGroup(firstID string, user *models.User) error {
response, err := sendGCMGroupRequest(gcmGroupRequest{
Operation: "create",
NotificationKeyName: os.Getenv("BASE_URL") + "-GeoRenting-" + strconv.Itoa(user.ID) + "-" + user.Name,
RegistrationIDs: []string{firstID},
})
if err != nil {
return err
}
if response.Error != "" {
return errors.New(response.Error)
}
user.GCMNotificationID = response.NotificationKey
err = user.Save()
if err != nil {
return err
}
return nil
}