Club Drupal

<?php

/**

 * @file

 * Honeypot administration forms.

 */

/**

 * Honeypot administration page.

 */

function honeypot_admin_form($form, &$form_state) {

  // Honeypot Configuration.

  $form['configuration'] = array(

    '#type' => 'fieldset',

    '#title' => t('Honeypot Configuration'),

    '#collapsible' => TRUE,

    '#collapsed' => FALSE,

  );

  $form['configuration']['honeypot_protect_all_forms'] = array(

    '#type' => 'checkbox',

    '#title' => t('Protect all forms with Honeypot'),

    '#description' => t('Enable Honeypot protection for ALL forms on this site (it is best to only enable Honeypot for the forms you need below).'),

    '#default_value' => variable_get('honeypot_protect_all_forms', 0),

  );

  if (!variable_get('honeypot_use_js_for_cached_pages', FALSE)) {

    $form['configuration']['honeypot_protect_all_forms']['#description'] .= '<br />' . t('<strong>Page caching will be disabled on any page where a form is present if the Honeypot time limit is not set to 0.</strong>');

  }

  $form['configuration']['honeypot_log'] = array(

    '#type' => 'checkbox',

    '#title' => t('Log blocked form submissions'),

    '#description' => t('Log submissions that are blocked due to Honeypot protection.'),

    '#default_value' => variable_get('honeypot_log', 0),

  );

  $form['configuration']['honeypot_element_name'] = array(

    '#type' => 'textfield',

    '#title' => t('Honeypot element name'),

    '#description' => t("The name of the Honeypot form field. It's usually most effective to use a generic name like email, homepage, or link, but this should be changed if it interferes with fields that are already in your forms. Must not contain spaces or special characters."),

    '#default_value' => variable_get('honeypot_element_name', 'url'),

    '#required' => TRUE,

    '#size' => 30,

  );

  $form['configuration']['honeypot_time_limit'] = array(

    '#type' => 'textfield',

    '#title' => t('Honeypot time limit'),

    '#description' => t('Minimum time required before form should be considered entered by a human instead of a bot. Set to 0 to disable.'),

    '#default_value' => variable_get('honeypot_time_limit', 5),

    '#required' => TRUE,

    '#size' => 5,

    '#field_suffix' => t('seconds'),

  );

  if (!variable_get('honeypot_use_js_for_cached_pages', FALSE)) {

    $form['configuration']['honeypot_time_limit']['#description'] .= '<br />' . t('<strong>Page caching will be disabled if there is a form protected by time limit on the page.</strong>');

  }

  $form['configuration']['honeypot_use_js_for_cached_pages'] = array(

    '#type' => 'checkbox',

    '#title' => t('Use Javascript protection for cacheable pages. (experimental)'),

    '#description' => t('Uses Javascript to preserve Page caching.'),

    '#default_value' => variable_get('honeypot_use_js_for_cached_pages', FALSE),

    '#states' => array(

      // Hide this when time limit is disabled.

      'invisible' => array(

        'input[name="honeypot_time_limit"]' => array('value' => 0),

      ),

    ),

  );

  $form['configuration']['honeypot_use_js_for_cached_pages']['#description'] .= '<br />' . t('<strong>Warning: Users who have javascript disabled will need to confirm their form submission on the next page (if the Honeypot-enabled form is on a cacheable page).</strong>');

  // Honeypot Enabled forms.

  $form['enabled_forms'] = array(

    '#type' => 'fieldset',

    '#title' => t('Honeypot Enabled Forms'),

    '#description' => t("Check the boxes next to individual forms on which you'd like Honeypot protection enabled."),

    '#collapsible' => TRUE,

    '#collapsed' => FALSE,

    '#states' => array(

      // Hide this fieldset when all forms are protected.

      'invisible' => array(

        'input[name="honeypot_protect_all_forms"]' => array('checked' => TRUE),

      ),

    ),

  );

  // Generic forms.

  $form['enabled_forms']['general_forms'] = array('#markup' => '<h5>' . t('General Forms') . '</h5>');

  // User register form.

  $form['enabled_forms']['honeypot_form_user_register_form'] = array(

    '#type' => 'checkbox',

    '#title' => t('User Registration form'),

    '#default_value' => variable_get('honeypot_form_user_register_form', 0),

  );

  // User password form.

  $form['enabled_forms']['honeypot_form_user_pass'] = array(

    '#type' => 'checkbox',

    '#title' => t('User Password Reset form'),

    '#default_value' => variable_get('honeypot_form_user_pass', 0),

  );

  // If webform.module enabled, add webforms.

  if (module_exists('webform')) {

    $form['enabled_forms']['honeypot_form_webforms'] = array(

      '#type' => 'checkbox',

      '#title' => t('Webforms (all)'),

      '#default_value' => variable_get('honeypot_form_webforms', 0),

    );

  }

  // If contact.module enabled, add contact forms.

  if (module_exists('contact')) {

    $form['enabled_forms']['contact_forms'] = array('#markup' => '<h5>' . t('Contact Forms') . '</h5>');

    // Sitewide contact form.

    $form['enabled_forms']['honeypot_form_contact_site_form'] = array(

      '#type' => 'checkbox',

      '#title' => t('Sitewide Contact form'),

      '#default_value' => variable_get('honeypot_form_contact_site_form', 0),

    );

    // Sitewide personal form.

    $form['enabled_forms']['honeypot_form_contact_personal_form'] = array(

      '#type' => 'checkbox',

      '#title' => t('Personal Contact forms'),

      '#default_value' => variable_get('honeypot_form_contact_personal_form', 0),

    );

  }

  // If profile.module enabled, add profile forms.

  if (module_exists('profile')) {

    $form['enabled_forms']['profile_forms'] = array('#value' => '<h5>' . t('Profile Forms') . '</h5>');

    $form['enabled_forms']['honeypot_form_user_profile_form'] = array(

      '#type' => 'checkbox',

      '#title' => t('Profile forms (all)'),

      '#default_value' => variable_get('honeypot_form_user_profile_form', 0),

    );

  }

  // Get node types for node forms and node comment forms.

  $types = node_type_get_types();

  if (!empty($types)) {

    // Node forms.

    $form['enabled_forms']['node_forms'] = array('#markup' => '<h5>' . t('Node Forms') . '</h5>');

    foreach ($types as $type) {

      $id = 'honeypot_form_' . $type->type . '_node_form';

      $form['enabled_forms'][$id] = array(

        '#type' => 'checkbox',

        '#title' => t('@name node form', array('@name' => $type->name)),

        '#default_value' => variable_get($id, 0),

      );

    }

    // Comment forms.

    if (module_exists('comment')) {

      $form['enabled_forms']['comment_forms'] = array('#markup' => '<h5>' . t('Comment Forms') . '</h5>');

      foreach ($types as $type) {

        $id = 'honeypot_form_comment_node_' . $type->type . '_form';

        $form['enabled_forms'][$id] = array(

          '#type' => 'checkbox',

          '#title' => t('@name comment form', array('@name' => $type->name)),

          '#default_value' => variable_get($id, 0),

        );

      }

    }

  }

  // Add our own submit handler to clear honeypot's form cache on save.

  $form['#submit'][] = 'honeypot_admin_form_submit';

  return system_settings_form($form);

}

/**

 * Validate the admin form.

 */

function honeypot_admin_form_validate($form, &$form_state) {

  // Make sure the time limit is a positive integer or 0.

  $time_limit = $form_state['values']['honeypot_time_limit'];

  if ((is_numeric($time_limit) && $time_limit > 0) || $time_limit === '0') {

    if (ctype_digit($time_limit)) {

      // Good to go.

    }

    else {

      form_set_error('honeypot_time_limit', t("The time limit must be a positive integer or 0."));

    }

  }

  else {

    form_set_error('honeypot_time_limit', t("The time limit must be a positive integer or 0."));

  }

  // Make sure Honeypot element name only contains A-Z, 0-9.

  if (!preg_match("/^[-_a-zA-Z0-9]+$/", $form_state['values']['honeypot_element_name'])) {

    form_set_error('honeypot_element_name', t("The element name cannot contain spaces or other special characters."));

  }

  // Make sure Honeypot element name starts with a letter.

  if (!preg_match("/^[a-zA-Z].+$/", $form_state['values']['honeypot_element_name'])) {

    form_set_error('honeypot_element_name', t("The element name must start with a letter."));

  }

  // Make sure Honeypot element name isn't one of the reserved names.

  $reserved_element_names = array(

    'name',

    'pass',

    'website',

  );

  if (in_array($form_state['values']['honeypot_element_name'], $reserved_element_names)) {

    form_set_error('honeypot_element_name', t("The element name cannot match one of the common Drupal form field names (e.g. @names).", array('@names' => implode(', ', $reserved_element_names))));

  }

}

/**

 * Honeypot admin form submit callback.

 */

function honeypot_admin_form_submit($form, &$form_state) {

  // Create CSS file for honeypot.

  honeypot_create_css($form_state['values']['honeypot_element_name']);

  // Clear the Honeypot form cache on submit.

  cache_clear_all('honeypot_protected_forms', 'cache');

}