advagg_sri.module

<?php


/**
 * @file
 * Advanced aggregation sri module.
 */

/**
 * @addtogroup default_variables
 * @{
 */

/**
 * Default value of the SHA hash level.
 */
define('ADVAGG_SRI', 0);

/**
 * Default value to force SRI to always be generated.
 */
define('ADVAGG_SRI_FILE_GENERATION', FALSE);

/**
 * @} End of "addtogroup default_variables".
 */

/**
 * @addtogroup hooks
 * @{
 */

/**
 * Implements hook_menu().
 */
function advagg_sri_menu() {
    $file_path = drupal_get_path('module', 'advagg_sri');
    $config_path = advagg_admin_config_root_path();
    $items[$config_path . '/advagg/sri'] = array(
        'title' => 'Subresource Integrity',
        'description' => 'Hash aggregated files.',
        'page callback' => 'drupal_get_form',
        'page arguments' => array(
            'advagg_sri_admin_settings_form',
        ),
        'type' => MENU_LOCAL_TASK,
        'access arguments' => array(
            'administer site configuration',
        ),
        'file path' => $file_path,
        'file' => 'advagg_sri.admin.inc',
        'weight' => 10,
    );
    return $items;
}

/**
 * Implements hook_module_implements_alter().
 */
function advagg_sri_module_implements_alter(&$implementations, $hook) {
    // Move advagg_sri to the bottom.
    if ($hook === 'advagg_save_aggregate_alter' && array_key_exists('advagg_sri', $implementations)) {
        $item = $implementations['advagg_sri'];
        unset($implementations['advagg_sri']);
        $implementations['advagg_sri'] = $item;
    }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function advagg_sri_form_advagg_admin_settings_form_alter(&$form, $form_state) {
    // Disable httprl if SRI is set to always on.
    if (variable_get('advagg_sri_file_generation', ADVAGG_SRI_FILE_GENERATION)) {
        $form['global']['advagg_use_httprl']['#default_value'] = FALSE;
        $form['global']['advagg_use_httprl']['#disabled'] = TRUE;
        $form['global']['advagg_use_httprl']['#description'] = t('The Subresource Integrity submodule has disabled httprl usage. This is the "Always output the page with the subresource integrity attribute" checkbox.');
    }
}

/**
 * @} End of "addtogroup hooks".
 */