<?php
// $Id: actions_permissions.module,v 1.1.2.3.4.1 2010-12-10 01:28:33 kratib Exp $

/**
 * Implementation of hook_permission().
 */
function actions_permissions_permission() {
  $perms = array();
  $actions = actions_list(); // standard actions
  foreach ($actions as $callback => $action) {
    $perms += actions_permissions_get_perm($action['label'], $callback, 'action');
  }
  $actions = _actions_permissions_get_custom_actions(); // advanced actions
  foreach ($actions as $callback => $action) {
    $perms += actions_permissions_get_perm($action['label'], $callback, 'advanced action');
  }
  module_load_include('inc', 'node', 'node.admin');
  foreach (array('node', 'user') as $type) { // node/user operations
    foreach (module_invoke_all($type .'_operations') as $operation) {
      if (is_array($operation['label']) || empty($operation['callback'])) {
        continue;
      }
      $perms += actions_permissions_get_perm($operation['label'], $operation['callback'], "$type operation");
    }
  }
  return $perms;
}

function _actions_permissions_get_custom_actions() {
  $actions = array();
  $static_actions = actions_list();
  $result = db_query("SELECT * FROM {actions} WHERE parameters > ''");
  foreach ($result as $action) {
    $actions[$action->aid] = array(
      'label' => $action->label,
      'type' => $action->type,
      'configurable' => FALSE,
      'parameters' => unserialize($action->parameters),
    );
    $actions[$action->aid]['behavior'] = isset($static_actions[$action->callback]['behavior']) ? $static_actions[$action->callback]['behavior'] : null;
  }
  return $actions;
}

function actions_permissions_get_perm($label, $callback, $type = FALSE) {
  $key = "execute $callback";
  return empty($type) ?
    $key :
    array($key => array(
      'title' => t('Execute !label', array('!label' => $label)),
      'description' => t('Execute !type "!label" (!callback).', array('!type' => t($type), '!label' => $label, '!callback' => is_numeric($callback) ? "aid:$callback" : $callback)),
    ),
  );
}