Issue #2025181 by fnuppy, ddrozdik: Add CAPTCHA to all forms by default

captcha.module

@@ -165,6 +165,15 @@ function captcha_form_alter(array &$form, FormStateInterface $form_state, $form_
       ->getStorage('captcha_point')
       ->load($form_id);
 
+    if (!$captcha_point && $config->get('enabled_default')) {
+      // Create fake captcha point without saving.
+      $captcha_point = new CaptchaPoint([
+        'formId' => $form_id,
+        'captchaType' => $config->get('default_challenge'),
+      ], 'captcha_point');
+      $captcha_point->enable();
+    }
+
     if ($captcha_point && $captcha_point->status()) {
       // Build CAPTCHA form element.
       $captcha_element = [

config/install/captcha.settings.yml

+enabled_default: 0
 default_challenge: 'captcha/Math'
 description: 'This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.'
 administration_mode: false

config/schema/captcha.settings.yml

@@ -5,6 +5,9 @@ captcha.settings:
   type: config_object
   label: 'External Links Settings'
   mapping:
+    enabled_default:
+      type: integer
+      label: 'Add captcha to all forms.'
     default_challenge:
       type: string
       label: 'The default challenge for captcha.'

src/Form/CaptchaSettingsForm.php

@@ -92,6 +92,13 @@ class CaptchaSettingsForm extends ConfigFormBase {
       '#default_value' => $config->get('default_challenge'),
     ];
 
+    // Option for enabling CAPTCHA for all forms.
+    $form['form_protection']['enabled_default'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Default challenge on non-listed forms.'),
+      '#description' => $this->t('Enable CAPTCHA for every form not listed in "CAPTCHA points"'),
+      '#default_value' => $config->get('enabled_default'),
+    ];
     // Field for the CAPTCHA administration mode.
     $form['form_protection']['administration_mode'] = [
       '#type' => 'checkbox',
@@ -213,6 +220,7 @@ class CaptchaSettingsForm extends ConfigFormBase {
     $config->set('administration_mode', $form_state->getValue('administration_mode'));
     $config->set('allow_on_admin_pages', $form_state->getValue('allow_on_admin_pages'));
     $config->set('default_challenge', $form_state->getValue('default_challenge'));
+    $config->set('enabled_default', $form_state->getValue('enabled_default'));
 
     // CAPTCHA description stuff.
     $config->set('add_captcha_description', $form_state->getValue('add_captcha_description'));