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Add honeypot fields and minimum fill-out time for sign-up form (#15276)

* Add honeypot fields to limit non-specialized spam

Add two honeypot fields: a fake website input and a fake password confirmation
one. The label/placeholder/aria-label tells not to fill them, and they are
hidden in CSS, so legitimate users should not fall into these.

This should cut down on some non-Mastodon-specific spambots.

* Require a 3 seconds delay before submitting the registration form

* Fix tests

* Move registration form time check to model validation

* Give people a chance to clear the honeypot fields

* Refactor honeypot translation strings

Co-authored-by: Claire <claire.github-309c@sitedethib.com>
feature_cybrespace_locale
ThibG 6 months ago
committed by GitHub
parent
commit
49eb4d4ddf
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  1. 5
      app/controllers/about_controller.rb
  2. 11
      app/controllers/auth/registrations_controller.rb
  3. 9
      app/controllers/concerns/registration_spam_concern.rb
  4. 11
      app/javascript/packs/public.js
  5. 8
      app/javascript/styles/mastodon/forms.scss
  6. 7
      app/models/user.rb
  7. 9
      app/validators/registration_form_time_validator.rb
  8. 3
      app/views/about/_registration.html.haml
  9. 3
      app/views/auth/registrations/new.html.haml
  10. 3
      app/views/shared/_error_messages.html.haml
  11. 1
      config/locales/en.yml
  12. 1
      config/locales/simple_form.en.yml
  13. 4
      spec/controllers/auth/registrations_controller_spec.rb

5
app/controllers/about_controller.rb

@ -1,12 +1,15 @@
# frozen_string_literal: true
class AboutController < ApplicationController
include RegistrationSpamConcern
layout 'public'
before_action :require_open_federation!, only: [:show, :more]
before_action :set_body_classes, only: :show
before_action :set_instance_presenter
before_action :set_expires_in, only: [:show, :more, :terms]
before_action :set_expires_in, only: [:more, :terms]
before_action :set_registration_form_time, only: :show
skip_before_action :require_functional!, only: [:more, :terms]

11
app/controllers/auth/registrations_controller.rb

@ -2,6 +2,7 @@
class Auth::RegistrationsController < Devise::RegistrationsController
include Devise::Controllers::Rememberable
include RegistrationSpamConcern
layout :determine_layout
@ -13,6 +14,7 @@ class Auth::RegistrationsController < Devise::RegistrationsController
before_action :set_body_classes, only: [:new, :create, :edit, :update]
before_action :require_not_suspended!, only: [:update]
before_action :set_cache_headers, only: [:edit, :update]
before_action :set_registration_form_time, only: :new
skip_before_action :require_functional!, only: [:edit, :update]
@ -45,16 +47,17 @@ class Auth::RegistrationsController < Devise::RegistrationsController
def build_resource(hash = nil)
super(hash)
resource.locale = I18n.locale
resource.invite_code = params[:invite_code] if resource.invite_code.blank?
resource.sign_up_ip = request.remote_ip
resource.locale = I18n.locale
resource.invite_code = params[:invite_code] if resource.invite_code.blank?
resource.registration_form_time = session[:registration_form_time]
resource.sign_up_ip = request.remote_ip
resource.build_account if resource.account.nil?
end
def configure_sign_up_params
devise_parameter_sanitizer.permit(:sign_up) do |u|
u.permit({ account_attributes: [:username], invite_request_attributes: [:text] }, :email, :password, :password_confirmation, :invite_code, :agreement)
u.permit({ account_attributes: [:username], invite_request_attributes: [:text] }, :email, :password, :password_confirmation, :invite_code, :agreement, :website, :confirm_password)
end
end

9
app/controllers/concerns/registration_spam_concern.rb

@ -0,0 +1,9 @@
# frozen_string_literal: true
module RegistrationSpamConcern
extend ActiveSupport::Concern
def set_registration_form_time
session[:registration_form_time] = Time.now.utc
end
end

11
app/javascript/packs/public.js

@ -280,6 +280,17 @@ function main() {
target.style.display = 'block';
}
});
// Empty the honeypot fields in JS in case something like an extension
// automatically filled them.
delegate(document, '#registration_new_user,#new_user', 'submit', () => {
['user_website', 'user_confirm_password', 'registration_user_website', 'registration_user_confirm_password'].forEach(id => {
const field = document.getElementById(id);
if (field) {
field.value = '';
}
});
});
}
loadPolyfills()

8
app/javascript/styles/mastodon/forms.scss

@ -354,6 +354,7 @@ code {
input[type=number],
input[type=email],
input[type=password],
input[type=url],
textarea {
box-sizing: border-box;
font-size: 16px;
@ -994,3 +995,10 @@ code {
flex-direction: row;
}
}
.input.user_confirm_password,
.input.user_website {
&:not(.field_with_errors) {
display: none;
}
}

7
app/models/user.rb

@ -89,6 +89,13 @@ class User < ApplicationRecord
validates_with EmailMxValidator, if: :validate_email_dns?
validates :agreement, acceptance: { allow_nil: false, accept: [true, 'true', '1'] }, on: :create
# Those are honeypot/antispam fields
attr_accessor :registration_form_time, :website, :confirm_password
validates_with RegistrationFormTimeValidator, on: :create
validates :website, absence: true, on: :create
validates :confirm_password, absence: true, on: :create
scope :recent, -> { order(id: :desc) }
scope :pending, -> { where(approved: false) }
scope :approved, -> { where(approved: true) }

9
app/validators/registration_form_time_validator.rb

@ -0,0 +1,9 @@
# frozen_string_literal: true
class RegistrationFormTimeValidator < ActiveModel::Validator
REGISTRATION_FORM_MIN_TIME = 3.seconds.freeze
def validate(user)
user.errors.add(:base, I18n.t('auth.too_fast')) if user.registration_form_time.present? && user.registration_form_time > REGISTRATION_FORM_MIN_TIME.ago
end
end

3
app/views/about/_registration.html.haml

@ -10,6 +10,9 @@
= f.input :password, placeholder: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password'), :autocomplete => 'off', :minlength => User.password_length.first, :maxlength => User.password_length.last }, hint: false, disabled: closed_registrations?
= f.input :password_confirmation, placeholder: t('simple_form.labels.defaults.confirm_password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_password'), :autocomplete => 'off' }, hint: false, disabled: closed_registrations?
= f.input :confirm_password, as: :string, placeholder: t('simple_form.labels.defaults.honeypot', label: t('simple_form.labels.defaults.password')), required: false, input_html: { 'aria-label' => t('simple_form.labels.defaults.honeypot', label: t('simple_form.labels.defaults.password')), :autocomplete => 'off' }, hint: false, disabled: closed_registrations?
= f.input :website, as: :url, placeholder: t('simple_form.labels.defaults.honeypot', label: 'Website'), required: false, input_html: { 'aria-label' => t('simple_form.labels.defaults.honeypot', label: 'Website'), :autocomplete => 'off' }, hint: false, disabled: closed_registrations?
- if approved_registrations?
.fields-group
= f.simple_fields_for :invite_request do |invite_request_fields|

3
app/views/auth/registrations/new.html.haml

@ -24,6 +24,9 @@
.fields-group
= f.input :password_confirmation, wrapper: :with_label, label: t('simple_form.labels.defaults.confirm_password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_password'), :autocomplete => 'off' }
= f.input :confirm_password, as: :string, wrapper: :with_label, label: t('simple_form.labels.defaults.honeypot', label: t('simple_form.labels.defaults.password')), required: false, input_html: { 'aria-label' => t('simple_form.labels.defaults.honeypot', label: t('simple_form.labels.defaults.password')), :autocomplete => 'off' }
= f.input :website, as: :url, wrapper: :with_label, label: t('simple_form.labels.defaults.honeypot', label: 'Website'), required: false, input_html: { 'aria-label' => t('simple_form.labels.defaults.honeypot', label: 'Website'), :autocomplete => 'off' }
- if approved_registrations? && !@invite.present?
.fields-group

3
app/views/shared/_error_messages.html.haml

@ -1,3 +1,6 @@
- if object.errors.any?
.flash-message.alert#error_explanation
%strong= t('generic.validation_errors', count: object.errors.count)
- object.errors[:base].each do |error|
.flash-message.alert
%strong= error

1
config/locales/en.yml

@ -751,6 +751,7 @@ en:
functional: Your account is fully operational.
pending: Your application is pending review by our staff. This may take some time. You will receive an e-mail if your application is approved.
redirecting_to: Your account is inactive because it is currently redirecting to %{acct}.
too_fast: Form submitted too fast, try again.
trouble_logging_in: Trouble logging in?
use_security_key: Use security key
authorize_follow:

1
config/locales/simple_form.en.yml

@ -126,6 +126,7 @@ en:
expires_in: Expire after
fields: Profile metadata
header: Header
honeypot: "%{label} (do not fill in)"
inbox_url: URL of the relay inbox
irreversible: Drop instead of hide
locale: Interface language

4
spec/controllers/auth/registrations_controller_spec.rb

@ -82,6 +82,10 @@ RSpec.describe Auth::RegistrationsController, type: :controller do
describe 'POST #create' do
let(:accept_language) { Rails.application.config.i18n.available_locales.sample.to_s }
before do
session[:registration_form_time] = 5.seconds.ago
end
around do |example|
current_locale = I18n.locale
example.run

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