resource_hints.admin.inc in Resource Hints 7

Admin page callbacks for the resource hints module.

File

resource_hints.admin.inc

<?php

/**
 * @file
 * Admin page callbacks for the resource hints module.
 */

/**
 * Form constructor for the resource hints admin form.
 */
function resource_hints_dns_prefetch_admin() {
  $form['#validate'][] = 'resource_hints_admin_form_validate';
  $form['dns_prefetch'] = array(
    '#type' => 'fieldset',
    '#title' => t('DNS Prefetch'),
    '#collapsible' => TRUE,
  );
  $form['dns_prefetch']['resource_hints_dns_prefetch_output'] = array(
    '#type' => 'select',
    '#title' => t('DNS prefetch output'),
    '#options' => array(
      RESOURCE_HINTS_OUTPUT_LINK_HEADER => t('Link Header'),
      RESOURCE_HINTS_OUTPUT_LINK_ELEMENT => t('Link Element'),
    ),
    '#default_value' => variable_get('resource_hints_dns_prefetch_output', RESOURCE_HINTS_OUTPUT_LINK_HEADER),
    '#description' => t('Resource hints can be output as an HTTP Link header or HTML link element'),
  );
  $form['dns_prefetch']['resource_hints_dns_prefetch_resources'] = array(
    '#title' => t('DNS prefetch resources'),
    '#type' => 'textarea',
    '#description' => t('The DNS resources you wish to be prefetched. Enter one resource per line.'),
    '#default_value' => variable_get('resource_hints_dns_prefetch_resources', ''),
  );
  $form['dns_prefetch']['resource_hints_dns_prefetch_control'] = array(
    '#type' => 'select',
    '#title' => t('DNS prefetch control'),
    '#options' => array(
      RESOURCE_HINTS_DNS_PREFETCH_ENABLED => t('Enabled'),
      RESOURCE_HINTS_DNS_PREFETCH_DISABLED => t('Disabled'),
    ),
    '#default_value' => variable_get('resource_hints_dns_prefetch_control', RESOURCE_HINTS_DNS_PREFETCH_ENABLED),
    '#description' => t('By default browsers will not use DNS prefetching when a page is served via HTTPS, you must explicitly enable prefetching for HTTPS. Disabling prefetching will prevent browsers using prefetching and any inline attempts to enable it will be ignored.'),
  );
  $form['preconnect'] = array(
    '#type' => 'fieldset',
    '#title' => t('Preconnect'),
    '#collapsible' => TRUE,
  );
  $form['preconnect']['resource_hints_preconnect_output'] = array(
    '#type' => 'select',
    '#title' => t('Preconnect output'),
    '#options' => array(
      RESOURCE_HINTS_OUTPUT_LINK_HEADER => t('Link Header'),
      RESOURCE_HINTS_OUTPUT_LINK_ELEMENT => t('Link Element'),
    ),
    '#default_value' => variable_get('resource_hints_preconnect_output', RESOURCE_HINTS_OUTPUT_LINK_HEADER),
    '#description' => t('Resource hints can be output as an HTTP Link header or HTML link element'),
  );
  $form['preconnect']['resource_hints_preconnect_resources'] = array(
    '#title' => t('Preconnect resources'),
    '#type' => 'textarea',
    '#description' => t('The resources you wish to be preconnected. Enter one resource per line.'),
    '#default_value' => variable_get('resource_hints_preconnect_resources', ''),
  );
  $form['prefetch'] = array(
    '#type' => 'fieldset',
    '#title' => t('Prefetch'),
    '#collapsible' => TRUE,
  );
  $form['prefetch']['resource_hints_prefetch_output'] = array(
    '#type' => 'select',
    '#title' => t('Prefetch output'),
    '#options' => array(
      RESOURCE_HINTS_OUTPUT_LINK_HEADER => t('Link Header'),
      RESOURCE_HINTS_OUTPUT_LINK_ELEMENT => t('Link Element'),
    ),
    '#default_value' => variable_get('resource_hints_prefetch_output', RESOURCE_HINTS_OUTPUT_LINK_HEADER),
    '#description' => t('Resource hints can be output as an HTTP Link header or HTML link element'),
  );
  $form['prefetch']['resource_hints_prefetch_resources'] = array(
    '#title' => t('Prefetch resources'),
    '#type' => 'textarea',
    '#description' => t('The resources you wish to be prefetched. Enter one resource per line.'),
    '#default_value' => variable_get('resource_hints_prefetch_resources', ''),
  );
  $form['prerender'] = array(
    '#type' => 'fieldset',
    '#title' => t('Prerender'),
    '#collapsible' => TRUE,
  );
  $form['prerender']['resource_hints_prerender_output'] = array(
    '#type' => 'select',
    '#title' => t('Prerender output'),
    '#options' => array(
      RESOURCE_HINTS_OUTPUT_LINK_HEADER => t('Link Header'),
      RESOURCE_HINTS_OUTPUT_LINK_ELEMENT => t('Link Element'),
    ),
    '#default_value' => variable_get('resource_hints_prerender_output', RESOURCE_HINTS_OUTPUT_LINK_HEADER),
    '#description' => t('Resource hints can be output as an HTTP Link header or HTML link element'),
  );
  $form['prerender']['resource_hints_prerender_resources'] = array(
    '#title' => t('Prerender resources'),
    '#type' => 'textarea',
    '#description' => t('The resources you wish to be prerendered. Enter one resource per line.'),
    '#default_value' => variable_get('resource_hints_prerender_resources', ''),
  );
  return system_settings_form($form);
}

/**
 * Implements hook_form_validate().
 */
function resource_hints_admin_form_validate($form, &$form_state) {
  $fields = array(
    'resource_hints_dns_prefetch_resources',
    'resource_hints_preconnect_resources',
    'resource_hints_prefetch_resources',
    'resource_hints_prerender_resources',
  );
  foreach ($fields as $field) {
    $values = $form_state['values'][$field];
    $values = explode(PHP_EOL, $values);
    foreach ($values as $value) {
      $value = trim($value);
      if (strlen($value) && (drupal_strip_dangerous_protocols($value) != $value || !valid_url($value))) {
        form_set_error($field, t('Please enter valid URLs.'));
        break 2;
      }
    }
  }
}

Functions

Name	Description
resource_hints_admin_form_validate	Implements hook_form_validate().
resource_hints_dns_prefetch_admin	Form constructor for the resource hints admin form.