Club Drupal

<?php

/**

 * @file

 * This module provides a simple way to create forms and questionnaires.

 *

 * The initial development of this module was sponsered by ÅF Industri AB, Open

 * Source City and Karlstad University Library. Continued development sponsored

 * by Lullabot.

 *

 * @author Nathan Haug <nate@lullabot.com>

 */

/**

 * Constants used in conditional logic.

 */

define('WEBFORM_CONDITIONAL_EXCLUDE', 0);

define('WEBFORM_CONDITIONAL_INCLUDE', 1);

define('WEBFORM_CONDITIONAL_SAME_PAGE', 2);

/**

 * Implements hook_help().

 */

function webform_help($section = 'admin/help#webform', $arg = NULL) {

  $output = '';

  switch ($section) {

    case 'admin/config/content/webform':

      module_load_include('inc', 'webform', 'includes/webform.admin');

      $type_list = webform_admin_type_list();

      $output = t('Webform enables nodes to have attached forms and questionnaires.');

      if ($type_list) {

        $output .= ' ' . t('To add one, create a !types piece of content.', array('!types' => $type_list));

      }

      else {

        $output .= ' <strong>' . t('Webform is currently not enabled on any content types.') . '</strong> ' . t('To use Webform, please enable it on at least one <a href="!url">content type</a>.', array('!url' => url('admin/structure/types')));

      }

      $output = '<p>' . $output . '</p>';

      break;

    case 'admin/content/webform':

      $output = '<p>' . t('This page lists all of the content on the site that may have a webform attached to it.') . '</p>';

      break;

    case 'admin/help#webform':

      module_load_include('inc', 'webform', 'includes/webform.admin');

      $types = webform_admin_type_list();

      if (empty($types)) {

        $types = t('Webform-enabled piece of content');

        $types_message = t('Webform is currently not enabled on any content types.') . ' ' . t('Visit the <a href="!url">Webform settings</a> page and enable Webform on at least one content type.', array('!url' => url('admin/config/content/webform')));

      }

      else {

        $types_message = t('Optional: Enable Webform on multiple types by visiting the <a href="!url">Webform settings</a> page.', array('!url' => url('admin/config/content/webform')));

      }

      $output = t("<p>This module lets you create forms or questionnaires and define their content. Submissions from these forms are stored in the database and optionally also sent by e-mail to a predefined address.</p>

      <p>Here is how to create one:</p>

      <ul>

        <li>!webform-types-message</li>

        <li>Go to <a href=\"!create-content\">Create content</a> and add a !types piece of content.</li>

        <li>After saving the new content, you will be redirected to the main field list of the form that will be created. Add the fields you would like on your form.</li>

        <li>Once finished adding fields, you may want to send e-mails to administrators or back to the user who filled out the form. Click on the <em>Emails</em> sub-tab underneath the <em>Webform</em> tab on the piece of content.</li>

        <li>Finally, visit the <em>Form settings</em> sub-tab under the <em>Webform</em> tab to configure remaining configurations options for your form.

          <ul>

          <li>Add a confirmation message and/or redirect URL that is to be displayed after successful submission.</li>

          <li>Set a submission limit.</li>

          <li>Determine which roles may submit the form.</li>

          <li>Advanced configuration options such as allowing drafts or show users a message indicating how they can edit their submissions.</li>

          </ul>

        </li>

        <li>Your form is now ready for viewing. After receiving submissions, you can check the results users have submitted by visiting the <em>Results</em> tab on the piece of content.</li>

      </ul>

      <p>Help on adding and configuring the components will be shown after you add your first component.</p>

      ", array('!webform-types-message' => $types_message, '!create-content' => url('node/add'), '!types' => $types));

      break;

    case 'node/%/webform/conditionals':

      $output .= '<p>' . t('Conditionals may be used to hide or show certain components (or entire pages!) based on the value of other components.') . '</p>';

      break;

    case 'node/%/submission/%/resend':

      $output .= '<p>' . t('This form may be used to resend e-mails configured for this webform. Check the e-mails that need to be sent and click <em>Resend e-mails</em> to send these e-mails again.') . '</p>';

      break;

  }

  return $output;

}

/**

 * Implements hook_menu().

 */

function webform_menu() {

  $items = array();

  // Submissions listing.

  $items['admin/content/webform'] = array(

    'title' => 'Webforms',

    'page callback' => 'webform_admin_content',

    'access callback' => 'user_access',

    'access arguments' => array('access all webform results'),

    'description' => 'View and edit all the available webforms on your site.',

    'file' => 'includes/webform.admin.inc',

    'type' => MENU_LOCAL_TASK,

  );

  // Admin Settings.

  $items['admin/config/content/webform'] = array(

    'title' => 'Webform settings',

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_admin_settings'),

    'access callback' => 'user_access',

    'access arguments' => array('administer site configuration'),

    'description' => 'Global configuration of webform functionality.',

    'file' => 'includes/webform.admin.inc',

    'type' => MENU_NORMAL_ITEM,

  );

  // Autocomplete used in Views integration.

  $items['webform/autocomplete'] = array(

    'title' => 'Webforms',

    'page callback' => 'webform_views_autocomplete',

    'access arguments' => array('administer views'),

    'file' => 'views/webform.views.inc',

    'type' => MENU_CALLBACK,

  );

  // Node page tabs.

  $items['node/%webform_menu/done'] = array(

    'title' => 'Webform confirmation',

    'page callback' => '_webform_confirmation',

    'page arguments' => array(1),

    'access callback' => 'webform_confirmation_page_access',

    'access arguments' => array(1),

    'type' => MENU_CALLBACK,

  );

  $items['node/%webform_menu/webform'] = array(

    'title' => 'Webform',

    'page callback' => 'webform_components_page',

    'page arguments' => array(1),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.components.inc',

    'weight' => 1,

    'type' => MENU_LOCAL_TASK,

    'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,

  );

  $items['node/%webform_menu/webform/components'] = array(

    'title' => 'Form components',

    'page callback' => 'webform_components_page',

    'page arguments' => array(1),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.components.inc',

    'weight' => 0,

    'type' => MENU_DEFAULT_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/conditionals'] = array(

    'title' => 'Conditionals',

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_conditionals_form', 1),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.conditionals.inc',

    'weight' => 1,

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/configure'] = array(

    'title' => 'Form settings',

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_configure_form', 1),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.pages.inc',

    'weight' => 5,

    'type' => MENU_LOCAL_TASK,

  );

  // Node e-mail forms.

  $items['node/%webform_menu/webform/emails'] = array(

    'title' => 'E-mails',

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_emails_form', 1),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.emails.inc',

    'weight' => 4,

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/emails/%webform_menu_email'] = array(

    'load arguments' => array(1),

    'page arguments' => array('webform_email_edit_form', 1, 4),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.emails.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/emails/%webform_menu_email/clone'] = array(

    'load arguments' => array(1),

    'page arguments' => array('webform_email_edit_form', 1, 4, TRUE),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.emails.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/emails/%webform_menu_email/delete'] = array(

    'load arguments' => array(1),

    'page arguments' => array('webform_email_delete_form', 1, 4),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'type' => MENU_LOCAL_TASK,

  );

  // Node component forms.

  $items['node/%webform_menu/webform/components/%webform_menu_component'] = array(

    'load arguments' => array(1, 5),

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_component_edit_form', 1, 4, FALSE),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.components.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/components/%webform_menu_component/clone'] = array(

    'load arguments' => array(1, 5),

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_component_edit_form', 1, 4, TRUE),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.components.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform/components/%webform_menu_component/delete'] = array(

    'load arguments' => array(1, 5),

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_component_delete_form', 1, 4),

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.components.inc',

    'type' => MENU_LOCAL_TASK,

  );

  // AJAX callback for loading select list options.

  $items['webform/ajax/options/%webform_menu'] = array(

    'load arguments' => array(3),

    'page callback' => 'webform_select_options_ajax',

    'access callback' => 'webform_node_update_access',

    'access arguments' => array(3),

    'file' => 'components/select.inc',

    'type' => MENU_CALLBACK,

  );

  // Node webform results.

  $items['node/%webform_menu/webform-results'] = array(

    'title' => 'Results',

    'page callback' => 'webform_results_submissions',

    'page arguments' => array(1, FALSE, '50'),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'weight' => 2,

    'type' => MENU_LOCAL_TASK,

    'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,

  );

  $items['node/%webform_menu/webform-results/submissions'] = array(

    'title' => 'Submissions',

    'page callback' => 'webform_results_submissions',

    'page arguments' => array(1, FALSE, '50'),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'weight' => 4,

    'type' => MENU_DEFAULT_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform-results/analysis'] = array(

    'title' => 'Analysis',

    'page callback' => 'webform_results_analysis',

    'page arguments' => array(1),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'weight' => 5,

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform-results/analysis/%webform_menu_component'] = array(

    'title' => 'Analysis',

    'load arguments' => array(1, 4),

    'page callback' => 'webform_results_analysis',

    'page arguments' => array(1, array(), 4),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform-results/analysis/%webform_menu_component/more'] = array(

    'title' => 'In-depth analysis',

    'type' => MENU_DEFAULT_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform-results/table'] = array(

    'title' => 'Table',

    'page callback' => 'webform_results_table',

    'page arguments' => array(1, '50'),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'weight' => 6,

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform-results/download'] = array(

    'title' => 'Download',

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_results_download_form', 1),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'weight' => 7,

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/webform-results/download-file'] = array(

    'title' => 'Download',

    'page callback' => 'webform_results_download_callback',

    'page arguments' => array(1),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'type' => MENU_CALLBACK,

  );

  $items['node/%webform_menu/webform-results/clear'] = array(

    'title' => 'Clear',

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_results_clear_form', 1),

    'access callback' => 'webform_results_clear_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.report.inc',

    'weight' => 8,

    'type' => MENU_LOCAL_TASK,

  );

  // Node submissions.

  $items['node/%webform_menu/submissions'] = array(

    'title' => 'Submissions',

    'page callback' => 'webform_results_submissions',

    'page arguments' => array(1, TRUE, '50'),

    'access callback' => 'webform_submission_access',

    'access arguments' => array(1, NULL, 'list'),

    'file' => 'includes/webform.report.inc',

    'type' => MENU_CALLBACK,

  );

  $items['node/%webform_menu/submission/%webform_menu_submission'] = array(

    'title' => 'Webform submission',

    'load arguments' => array(1),

    'page callback' => 'webform_submission_page',

    'page arguments' => array(1, 3, 'html'),

    'title callback' => 'webform_submission_title',

    'title arguments' => array(1, 3),

    'access callback' => 'webform_submission_access',

    'access arguments' => array(1, 3, 'view'),

    'file' => 'includes/webform.submissions.inc',

    'type' => MENU_CALLBACK,

  );

  $items['node/%webform_menu/submission/%webform_menu_submission/view'] = array(

    'title' => 'View',

    'load arguments' => array(1),

    'page callback' => 'webform_submission_page',

    'page arguments' => array(1, 3, 'html'),

    'access callback' => 'webform_submission_access',

    'access arguments' => array(1, 3, 'view'),

    'weight' => 0,

    'file' => 'includes/webform.submissions.inc',

    'type' => MENU_DEFAULT_LOCAL_TASK,

  );

  $items['node/%webform_menu/submission/%webform_menu_submission/edit'] = array(

    'title' => 'Edit',

    'load arguments' => array(1),

    'page callback' => 'webform_submission_page',

    'page arguments' => array(1, 3, 'form'),

    'access callback' => 'webform_submission_access',

    'access arguments' => array(1, 3, 'edit'),

    'weight' => 1,

    'file' => 'includes/webform.submissions.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/submission/%webform_menu_submission/delete'] = array(

    'title' => 'Delete',

    'load arguments' => array(1),

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_submission_delete_form', 1, 3),

    'access callback' => 'webform_submission_access',

    'access arguments' => array(1, 3, 'delete'),

    'weight' => 2,

    'file' => 'includes/webform.submissions.inc',

    'type' => MENU_LOCAL_TASK,

  );

  $items['node/%webform_menu/submission/%webform_menu_submission/resend'] = array(

    'title' => 'Resend e-mails',

    'load arguments' => array(1),

    'page callback' => 'drupal_get_form',

    'page arguments' => array('webform_submission_resend', 1, 3),

    'access callback' => 'webform_results_access',

    'access arguments' => array(1),

    'file' => 'includes/webform.submissions.inc',

    'type' => MENU_CALLBACK,

  );

  // Devel integration for submissions.

  if (module_exists('devel')) {

    $items['node/%webform_menu/submission/%webform_menu_submission/devel'] = array(

      'title' => 'Devel',

      'load arguments' => array(1),

      'page callback' => 'devel_load_object',

      'page arguments' => array('submission', 3),

      'access arguments' => array('access devel information'),

      'type' => MENU_LOCAL_TASK,

      'file' => 'devel.pages.inc',

      'file path' => drupal_get_path('module', 'devel'),

      'weight' => 100,

    );

    $items['node/%webform_menu/submission/%webform_menu_submission/devel/load'] = array(

      'title' => 'Load',

      'type' => MENU_DEFAULT_LOCAL_TASK,

    );

    if (module_exists('token')) {

      $items['node/%webform_menu/submission/%webform_menu_submission/devel/token'] = array(

        'title' => 'Tokens',

        'load arguments' => array(1),

        'page callback' => 'token_devel_token_object',

        'page arguments' => array('webform-submission', 3, 'submission'),

        'access arguments' => array('access devel information'),

        'type' => MENU_LOCAL_TASK,

        'file' => 'token.pages.inc',

        'file path' => drupal_get_path('module', 'token'),

        'weight' => 5,

      );

    }

  }

  return $items;

}

/**

 * Menu loader callback. Load a webform node if the given nid is a webform.

 */

function webform_menu_load($nid) {

  if (!is_numeric($nid)) {

    return FALSE;

  }

  $node = node_load($nid);

  if (!isset($node->type) || !variable_get('webform_node_' . $node->type, FALSE)) {

    return FALSE;

  }

  return $node;

}

/**

 * Menu LOADERNAME_to_arg callback. Determines the arguments used to generate a

 * menu link.

 *

 * This is implemented only to give the webform_localization modules an

 * opportunity to link to the orignial webform from the localized one. See

 * issue 2097277.

 *

 * @param string $arg

 *   The argument supplied by the caller.

 * @param array $map

 *   Array of path fragments (e.g. e.g. array('node','123','edit') for

 *   'node/123/edit').

 * @param integer $index

 *   Which element of $map corresponds to $arg.

 * @return string

 *   The $arg, modified as desired.

 */

function webform_menu_to_arg($arg, $map, $index) {

  return function_exists('webform_localization_webform_menu_to_arg')

          ? webform_localization_webform_menu_to_arg($arg, $map, $index)

          : $arg;

}

/**

 * Menu loader callback. Load a webform submission if the given sid is a valid.

 */

function webform_menu_submission_load($sid, $nid) {

  module_load_include('inc', 'webform', 'includes/webform.submissions');

  $submission = webform_get_submission($nid, $sid);

  return empty($submission) ? FALSE : $submission;

}

/**

 * Menu loader callback. Load a webform component if the given cid is a valid.

 */

function webform_menu_component_load($cid, $nid, $type) {

  module_load_include('inc', 'webform', 'includes/webform.components');

  if ($cid == 'new') {

    $components = webform_components();

    $component = in_array($type, array_keys($components)) ? array('type' => $type, 'nid' => $nid, 'name' => $_GET['name'], 'required' => $_GET['required'], 'pid' => $_GET['pid'], 'weight' => $_GET['weight']) : FALSE;

  }

  else {

    $node = node_load($nid);

    $component = isset($node->webform['components'][$cid]) ? $node->webform['components'][$cid] : FALSE;

  }

  if ($component) {

    webform_component_defaults($component);

  }

  return $component;

}

/**

 * Menu loader callback. Load a webform e-mail if the given eid is a valid.

 */

function webform_menu_email_load($eid, $nid) {

  module_load_include('inc', 'webform', 'includes/webform.emails');

  $node = node_load($nid);

  $email = webform_email_load($eid, $nid);

  if ($eid == 'new') {

    if (isset($_GET['option']) && isset($_GET['email'])) {

      $type = $_GET['option'];

      if ($type == 'custom') {

        $email['email'] = $_GET['email'];

      }

      elseif ($type == 'component' && isset($node->webform['components'][$_GET['email']])) {

        $email['email'] = $_GET['email'];

      }

    }

    if (isset($_GET['status'])) {

      $email['status'] = $_GET['status'];

    }

  }

  return $email;

}

/**

 * Return the access token for a submission.

 *

 * @param object $submission

 *   The submission object.

 *

 * @return string

 *   The access token for the submission.

 */

function webform_get_submission_access_token($submission) {

  return md5($submission->submitted . $submission->sid . drupal_get_private_key());

}

/**

 * Access function for confirmation pages.

 *

 * @param $node

 *   The webform node object.

 *

 * @return

 *  Boolean whether the user has access to the confirmation page.

 */

function webform_confirmation_page_access($node) {

  global $user;

  // Make sure SID is a positive integer.

  $sid = (!empty($_GET['sid']) && (int) $_GET['sid'] > 0) ? (int) $_GET['sid'] : NULL;

  if ($sid) {

    module_load_include('inc', 'webform', 'includes/webform.submissions');

    $submission = webform_get_submission($node->nid, $sid);

  }

  else {

    $submission = NULL;

  }

  if ($submission) {

    // Logged-in users.

    if ($user->uid) {

      // User's own submission.

      if ($submission->uid === $user->uid && node_access('view', $node)) {

        return TRUE;

      }

      // User has results access to this submission.

      elseif (webform_submission_access($node, $submission)) {

        return TRUE;

      }

    }

    // Anonymous user for their own submission. Hash of submission data must

    // match the hash in the query string.

    elseif ((int) $user->uid === 0 && (int) $submission->uid === 0) {

      $hash_query = !empty($_GET['token']) ? $_GET['token'] : NULL;

      $hash = webform_get_submission_access_token($submission);

      if ($hash_query === $hash) {

        return TRUE;

      }

    }

  }

  else {

    // No submission exists (such as auto-deleted by another module, such as

    // webform_clear), just ensure that the user has access to view the node page.

    if (node_access('view', $node)) {

      return TRUE;

    }

  }

  return FALSE;

}

/**

 * Access function for Webform submissions.

 *

 * @param $node

 *   The webform node object.

 * @param $submission

 *   The webform submission object.

 * @param $op

 *   The operation to perform. Must be one of view, edit, delete, list.

 * @param $account

 *   Optional. A user object or NULL to use the currently logged-in user.

 *

 * @return

 *   Boolean whether the user has access to a webform submission.

 */

function webform_submission_access($node, $submission, $op = 'view', $account = NULL) {

  global $user;

  $account = isset($account) ? $account : $user;

  $access_all = user_access('access all webform results', $account);

  $access_own_submission = isset($submission) && user_access('access own webform submissions', $account) && (($account->uid && $account->uid == $submission->uid) || isset($_SESSION['webform_submission'][$submission->sid]));

  $access_node_submissions = user_access('access own webform results', $account) && $account->uid == $node->uid;

  $token_access = $submission && isset($_GET['token']) && $_GET['token'] == webform_get_submission_access_token($submission);

  $general_access = $access_all || $access_own_submission || $access_node_submissions || $token_access;

  // Disable the page cache for anonymous users in this access callback,

  // otherwise the "Access denied" page gets cached.

  if (!$account->uid && user_access('access own webform submissions', $account)) {

    webform_disable_page_cache();

  }

  $module_access = count(array_filter(module_invoke_all('webform_submission_access', $node, $submission, $op, $account))) > 0;

  switch ($op) {

    case 'view':

      return $module_access || $general_access;

    case 'edit':

      return $module_access || ($general_access && (user_access('edit all webform submissions', $account) || (user_access('edit own webform submissions', $account) && $account->uid == $submission->uid)));

    case 'delete':

      return $module_access || ($general_access && (user_access('delete all webform submissions', $account) || (user_access('delete own webform submissions', $account) && $account->uid == $submission->uid)));

    case 'list':

      return $module_access || user_access('access all webform results', $account) || (user_access('access own webform submissions', $account) && ($account->uid || isset($_SESSION['webform_submission']))) || (user_access('access own webform results', $account) && $account->uid == $node->uid);

  }

}

/**

 * Menu access callback. Ensure a user both access and node 'view' permission.

 */

function webform_results_access($node, $account = NULL) {

  global $user;

  $account = isset($account) ? $account : $user;

  $module_access = count(array_filter(module_invoke_all('webform_results_access', $node, $account))) > 0;

  return node_access('view', $node, $account) && ($module_access || user_access('access all webform results', $account) || (user_access('access own webform results', $account) && $account->uid == $node->uid));

}

/**

 * Menu access callback. Ensure a user has both results access and permission

 * to clear submissions.

 */

function webform_results_clear_access($node, $account = NULL) {

  global $user;

  $account = isset($account) ? $account : $user;

  $module_access = count(array_filter(module_invoke_all('webform_results_clear_access', $node, $account))) > 0;

  return webform_results_access($node, $account) && ($module_access || user_access('delete all webform submissions', $account));

}

/**

 * Menu access callback. Ensure a sure has access to update a webform node.

 *

 * Unlike webform_results_access and webform_results_clear_access, access is

 * completely overridden by the any implmentation of hook_webform_update_access.

 *

 * If hook_webform_update_access is implemented by one or more other modules,

 * the results must be unanimously TRUE for access to be granted; otherwise it

 * is denied if even one implementation returns FALSE, regardless of node_access

 * and the 'edit webform components' permission. This allows implementors

 * complete flexibility.

 *

 * hook_webform_update_access should return TRUE if access should absolutely

 * be granted, FALSE if it should absolutely be denied, or NULL if node_access

 * and 'edit webform components' permission should determine access.

 *

 * @see hook_webform_update_access().

 */

function webform_node_update_access($node, $account = NULL) {

  global $user;

  $account = isset($account) ? $account : $user;

  $module_access = module_invoke_all('webform_update_access', $node, $account);

  return empty($module_access)

            ? node_access('update', $node, $account) && user_access('edit webform components')

            : count(array_filter($module_access)) == count($module_access);

}

/**

 * Implements hook_admin_paths().

 */

function webform_admin_paths() {

  if (variable_get('node_admin_theme')) {

    return array(

      'node/*/webform' => TRUE,

      'node/*/webform/*' => TRUE,

      'node/*/webform-results' => TRUE,

      'node/*/webform-results/*' => TRUE,

      'node/*/submission/*' => TRUE,

    );

  }

}

/**

 * Implements hook_perm().

 */

function webform_permission() {

  return array(

    'access all webform results' => array(

      'title' => t('Access all webform results'),

      'description' => t('Grants access to the "Results" tab on all webform content. Generally an administrative permission.'),

    ),

    'access own webform results' => array(

      'title' => t('Access own webform results'),

      'description' => t('Grants access to the "Results" tab to the author of webform content they have created.'),

    ),

    'edit all webform submissions' => array(

      'title' => t('Edit all webform submissions'),

      'description' => t('Allows editing of any webform submission by any user. Generally an administrative permission.'),

    ),

    'delete all webform submissions' => array(

      'title' => t('Delete all webform submissions'),

      'description' => t('Allows deleting of any webform submission by any user. Generally an administrative permission.'),

    ),

    'access own webform submissions' => array(

      'title' => t('Access own webform submissions'),

    ),

    'edit own webform submissions' => array(

      'title' => t('Edit own webform submissions'),

    ),

    'delete own webform submissions' => array(

      'title' => t('Delete own webform submissions'),

    ),

    'edit webform components' => array(

      'title' => t('Content authors: access and edit webform components and settings'),

      'description' => t('Grants additional access to the webform components and settings to users who can edit the content. Generally an authenticated user permission.'),

    ),

  );

}

/**

 * Implements hook_theme().

 */

function webform_theme() {

  $theme = array(

    // webform.module.

    'webform_view' => array(

      'render element' => 'webform',

    ),

    'webform_view_messages' => array(

      'variables' => array('node' => NULL, 'page' => NULL, 'submission_count' => NULL, 'user_limit_exceeded' => NULL, 'total_limit_exceeded' => NULL, 'allowed_roles' => NULL, 'closed' => NULL, 'cached' => NULL),

    ),

    'webform_form' => array(

      'render element' => 'form',

      'template' => 'templates/webform-form',

      'pattern' => 'webform_form_[0-9]+',

    ),

    'webform_confirmation' => array(

      'variables' => array('node' => NULL, 'sid' => NULL),

      'template' => 'templates/webform-confirmation',

      'pattern' => 'webform_confirmation_[0-9]+',

    ),

    'webform_element' => array(

      'render element' => 'element',

    ),

    'webform_element_text' => array(

      'render element' => 'element',

    ),

    'webform_inline_radio' => array(

      'render element' => 'element',

    ),

    'webform_inline_radio_label' => array(

      'render element' => 'element',

    ),

    'webform_progressbar' => array(

      'variables' => array('node' => NULL, 'page_num' => NULL, 'page_count' => NULL, 'page_labels' => array()),

      'template' => 'templates/webform-progressbar',

    ),

    'webform_mail_message' => array(

      'variables' => array('node' => NULL, 'submission' => NULL, 'email' => NULL),

      'template' => 'templates/webform-mail',

      'pattern' => 'webform_mail(_[0-9]+)?',

    ),

    'webform_mail_headers' => array(

      'variables' => array('node' => NULL, 'submission' => NULL, 'email' => NULL),

      'pattern' => 'webform_mail_headers_[0-9]+',

    ),

    'webform_token_help' => array(

      'variables' => array('groups' => array('node')),

    ),

    // webform.admin.inc.

    'webform_admin_settings' => array(

      'render element' => 'form',

      'file' => 'includes/webform.admin.inc',

    ),

    'webform_admin_content' => array(

      'variables' => array('nodes' => NULL),

      'file' => 'includes/webform.admin.inc',

    ),

    // webform.emails.inc.

    'webform_emails_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.emails.inc',

    ),

    'webform_email_component_mapping' => array(

      'render element' => 'element',

      'file' => 'includes/webform.emails.inc',

    ),

    'webform_email_add_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.emails.inc',

    ),

    'webform_email_edit_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.emails.inc',

    ),

    // webform.components.inc.

    'webform_components_page' => array(

      'variables' => array('node' => NULL, 'form' => NULL),

      'file' => 'includes/webform.components.inc',

    ),

    'webform_components_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.components.inc',

    ),

    'webform_component_select' => array(

      'render element' => 'element',

      'file' => 'includes/webform.components.inc',

    ),

    // webform.conditionals.inc.

    'webform_conditional_groups' => array(

      'render element' => 'element',

      'file' => 'includes/webform.conditionals.inc',

    ),

    'webform_conditional_group_row' => array(

      'render element' => 'element',

      'file' => 'includes/webform.conditionals.inc',

    ),

    'webform_conditional' => array(

      'render element' => 'element',

      'file' => 'includes/webform.conditionals.inc',

    ),

    // webform.pages.inc.

    'webform_advanced_redirection_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.pages.inc',

    ),

    'webform_advanced_submit_limit_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.pages.inc',

    ),

    'webform_advanced_total_submit_limit_form' => array(

      'render element' => 'form',

      'file' => 'includes/webform.pages.inc',

    ),

    // webform.report.inc.

    'webform_results_per_page' => array(

      'variables' => array('total_count' => NULL, 'pager_count' => NULL),

      'file' => 'includes/webform.report.inc',

    ),

    'webform_results_submissions_header' => array(

      'variables' => array('node' => NULL),

      'file' => 'includes/webform.report.inc',

    ),

    'webform_results_submissions' => array(

      'render element' => 'element',

      'template' => 'templates/webform-results-submissions',

      'file' => 'includes/webform.report.inc',

    ),

    'webform_results_table_header' => array(

      'variables' => array('node' => NULL),

      'file' => 'includes/webform.report.inc',

    ),

    'webform_results_table' => array(

      'variables' => array('node' => NULL, 'components' => NULL, 'submissions' => NULL, 'node' => NULL, 'total_count' => NULL, 'pager_count' => NULL),

      'file' => 'includes/webform.report.inc',

    ),

    'webform_results_download_range' => array(

      'render element' => 'element',

      'file' => 'includes/webform.report.inc',

    ),

    'webform_results_download_select_format' => array(

      'render element' => 'element',

      'file' => 'includes/webform.report.inc',

    ),

    'webform_analysis' => array(

      'render element' => 'analysis',

      'template' => 'templates/webform-analysis',

      'file' => 'includes/webform.report.inc',

    ),

    'webform_analysis_component' => array(

      'render element' => 'component_analysis',

      'template' => 'templates/webform-analysis-component',

      'file' => 'includes/webform.report.inc',

    ),

    'webform_analysis_component_basic' => array(

      'variables' => array('component' => NULL, 'data' => NULL),

      'file' => 'includes/webform.report.inc',

    ),

    // webform.submissions.inc

    'webform_submission' => array(

      'render element' => 'renderable',

      'template' => 'templates/webform-submission',

      'pattern' => 'webform_submission_[0-9]+',

      'file' => 'includes/webform.submissions.inc',

    ),

    'webform_submission_page' => array(

      'variables' => array('node' => NULL, 'submission' => NULL, 'submission_content' => NULL, 'submission_navigation' => NULL, 'submission_information' => NULL, 'submission_actions' => NULL, 'mode' => NULL),

      'template' => 'templates/webform-submission-page',

      'file' => 'includes/webform.submissions.inc',

    ),

    'webform_submission_information' => array(

      'variables' => array('node' => NULL, 'submission' => NULL, 'mode' => 'display'),

      'template' => 'templates/webform-submission-information',

      'file' => 'includes/webform.submissions.inc',

    ),

    'webform_submission_navigation' => array(

      'variables' => array('node' => NULL, 'submission' => NULL, 'mode' => NULL),

      'template' => 'templates/webform-submission-navigation',

      'file' => 'includes/webform.submissions.inc',

    ),

    'webform_submission_resend' => array(

      'render element' => 'form',

      'file' => 'includes/webform.submissions.inc',

    ),

  );

  // Theme functions in all components.

  $components = webform_components(TRUE);

  foreach ($components as $type => $component) {

    if ($theme_additions = webform_component_invoke($type, 'theme')) {

      $theme = array_merge($theme, $theme_additions);

    }

  }

  return $theme;

}

/**

 * Implements hook_library().

 */

function webform_library() {

  $module_path = drupal_get_path('module', 'webform');

  // Webform administration.

  $libraries['admin'] = array(

    'title' => 'Webform: Administration',

    'website' => 'http://drupal.org/project/webform',

    'version' => '1.0',

    'js' => array(

      $module_path . '/js/webform-admin.js' => array('group' => JS_DEFAULT),

    ),

    'css' => array(

      $module_path . '/css/webform-admin.css' => array('group' => CSS_DEFAULT, 'weight' => 1),

    ),

  );

  return $libraries;

}

/**

 * Implements hook_element_info().

 */

function webform_element_info() {

  // A few of our components need to be defined here because Drupal does not

  // provide these components natively. Because this hook fires on every page

  // load (even on non-webform pages), we don't put this in the component .inc

  // files because of the unnecessary loading that it would require.

  $elements['webform_time'] = array('#input' => 'TRUE');

  $elements['webform_grid'] = array('#input' => 'TRUE');

  $elements['webform_email'] = array(

    '#input' => TRUE,

    '#theme' => 'webform_email',

    '#size' => 60,

  );

  $elements['webform_number'] = array(

    '#input' => TRUE,

    '#theme' => 'webform_number',

    '#min' => NULL,

    '#max' => NULL,

    '#step' => NULL,

  );

  $elements['webform_conditional'] = array(

    '#input' => TRUE,

    '#theme' => 'webform_conditional',

    '#default_value' => NULL,

    '#process' => array('webform_conditional_expand'),

  );

  return $elements;

}

/**

 * Implements hook_webform_component_info().

 */

function webform_webform_component_info() {

  $component_info = array(

    'date' => array(

      'label' => t('Date'),

      'description' => t('Presents month, day, and year fields.'),

      'features' => array(

        'views_range' => TRUE,

        'css_classes' => FALSE,

      ),

      'file' => 'components/date.inc',

      'conditional_type' => 'date',

    ),

    'email' => array(

      'label' => t('E-mail'),

      'description' => t('A special textfield that accepts e-mail addresses.'),

      'file' => 'components/email.inc',

      'features' => array(

        'email_address' => TRUE,

        'spam_analysis' => TRUE,

        'placeholder' => TRUE,

        'conditional_action_set' => TRUE,

      ),

    ),

    'fieldset' => array(

      'label' => t('Fieldset'),

      'description' => t('Fieldsets allow you to organize multiple fields into groups.'),

      'features' => array(

        'csv' => FALSE,

        'default_value' => FALSE,

        'required' => FALSE,

        'conditional' => FALSE,

        'group' => TRUE,

        'title_inline' => FALSE,

        'wrapper_classes' => FALSE,

      ),

      'file' => 'components/fieldset.inc',

    ),

    'grid' => array(

      'label' => t('Grid'),

      'description' => t('Allows creation of grid questions, denoted by radio buttons.'),

      'features' => array(

        'conditional' => FALSE,

        'default_value' => FALSE,

        'title_inline' => FALSE,

        'css_classes' => FALSE,

      ),

      'file' => 'components/grid.inc',

    ),

    'hidden' => array(

      'label' => t('Hidden'),

      'description' => t('A field which is not visible to the user, but is recorded with the submission.'),

      'file' => 'components/hidden.inc',

      'features' => array(

        'required' => FALSE,

        'description' => FALSE,

        'email_address' => TRUE,

        'email_name' => TRUE,

        'title_display' => FALSE,

        'private' => FALSE,

        'wrapper_classes' => FALSE,

        'css_classes' => FALSE,

        'conditional_action_set' => TRUE,

      ),

    ),

    'markup' => array(

      'label' => t('Markup'),

      'description' => t('Displays text as HTML in the form; does not render a field.'),

      'features' => array(

        'analysis' => FALSE,

        'csv' => FALSE,

        'default_value' => FALSE,

        'description' => FALSE,

        'email' => FALSE,

        'required' => FALSE,

        'conditional' => FALSE,

        'title_display' => FALSE,

        'private' => FALSE,

        'wrapper_classes' => FALSE,

        'css_classes' => FALSE,

        'conditional_action_set' => TRUE,

      ),

      'file' => 'components/markup.inc',

    ),

    'number' => array(

      'label' => t('Number'),

      'description' => t('A numeric input field (either as textfield or select list).'),

      'features' => array(

      ),

      'file' => 'components/number.inc',

      'conditional_type' => 'numeric',

      'features' => array(

        'conditional_action_set' => TRUE,

      ),

    ),

    'pagebreak' => array(

      'label' => t('Page break'),

      'description' => t('Organize forms into multiple pages.'),

      'features' => array(

        'analysis' => FALSE,

        'conditional' => FALSE,

        'csv' => FALSE,

        'default_value' => FALSE,

        'description' => FALSE,

        'private' => FALSE,

        'required' => FALSE,

        'title_display' => FALSE,

        'wrapper_classes' => FALSE,

        'css_classes' => FALSE,

      ),

      'file' => 'components/pagebreak.inc',

    ),

    'select' => array(

      'label' => t('Select options'),

      'description' => t('Allows creation of checkboxes, radio buttons, or select menus.'),

      'file' => 'components/select.inc',

      'features' => array(

        'default_value' => FALSE,

        'email_address' => TRUE,

        'email_name' => TRUE,

        'conditional_action_set' => TRUE,

      ),

      'conditional_type' => 'select',

    ),

    'textarea' => array(

      'label' => t('Textarea'),

      'description' => t('A large text area that allows for multiple lines of input.'),

      'file' => 'components/textarea.inc',

      'features' => array(

        'spam_analysis' => TRUE,

        'placeholder' => TRUE,

        'conditional_action_set' => TRUE,

      ),

    ),

    'textfield' => array(

      'label' => t('Textfield'),

      'description' => t('Basic textfield type.'),

      'file' => 'components/textfield.inc',

      'features' => array(

        'email_name' => TRUE,

        'spam_analysis' => TRUE,

        'placeholder' => TRUE,

        'conditional_action_set' => TRUE,

      ),

    ),

    'time' => array(

      'label' => t('Time'),

      'description' => t('Presents the user with hour and minute fields. Optional am/pm fields.'),

      'features' => array(

        'views_range' => TRUE,

        'css_classes' => FALSE,

      ),

      'file' => 'components/time.inc',

      'conditional_type' => 'time',

    ),

  );

  if (module_exists('file')) {

    $component_info['file'] = array(

      'label' => t('File'),

      'description' => t('Allow users to upload files of configurable types.'),

      'features' => array(

        'conditional' => FALSE,

        'default_value' => FALSE,

        'attachment' => TRUE,

      ),

      'file' => 'components/file.inc',

    );

  }

  return $component_info;

}

/**

 * Implements hook_webform_conditional_operator_info().

 */

function webform_webform_conditional_operator_info() {

  module_load_include('inc', 'webform', 'includes/webform.conditionals');

  return _webform_conditional_operator_info();

}

/**

 * Implements hook_forms().

 *

 * All webform_client_form forms share the same form handler

 */

function webform_forms($form_id) {

  $forms = array();

  if (strpos($form_id, 'webform_client_form_') === 0) {

    $forms[$form_id]['callback'] = 'webform_client_form';

  }

  return $forms;

}

/**

 * Implements hook_webform_select_options_info().

 */

function webform_webform_select_options_info() {

  module_load_include('inc', 'webform', 'includes/webform.options');

  return _webform_options_info();

}

/**

 * Implements hook_webform_webform_submission_actions().

 */

function webform_webform_submission_actions($node, $submission) {

  $actions = array();

  $destination = drupal_get_destination();

  if (module_exists('print_pdf') && user_access('access PDF version')) {

    $actions['printpdf'] = array(

      'title' => t('Download PDF'),

      'href' => 'printpdf/' . $node->nid . '/submission/' . $submission->sid,

      'query' => $destination,

    );

  }

  if (module_exists('print') && user_access('access print')) {

    $actions['print'] = array(

      'title' => t('Print'),

      'href' => 'print/' . $node->nid . '/submission/' . $submission->sid,

    );

  }

  if (webform_results_access($node) && count($node->webform['emails'])) {

    $actions['resend'] = array(

      'title' => t('Resend e-mails'),

      'href' => 'node/' . $node->nid . '/submission/' . $submission->sid . '/resend',

      'query' => drupal_get_destination(),

    );

  }

  return $actions;

}

/**

 * Implements hook_webform_submission_presave().

 *

 * We implement our own hook here to facilitate the File component, which needs

 * to clean up manage file usage records and delete files from submissions that

 * have been edited if necessary.

 */

function webform_webform_submission_presave($node, &$submission) {

  // Check if there are any file components in this submission and if any of

  // them currently contain files.

  $has_file_components = FALSE;

  $new_fids = array();

  $old_fids = array();

  $renameable = array();

  foreach ($node->webform['components'] as $cid => $component) {

    if ($component['type'] == 'file') {

      $has_file_components = TRUE;

      if (!empty($submission->data[$cid])) {

        foreach ($submission->data[$cid] as $key => $value) {

          if (empty($value)) {

            unset($submission->data[$cid][$key]);

          }

          if (strlen($component['extra']['rename'])) {

            $renameable[$cid][] = $value;

          }

        }

        $new_fids = array_merge($new_fids, $submission->data[$cid]);

      }

    }

  }

  if ($has_file_components) {

    // If we're updating a submission, build a list of previous files.

    if (isset($submission->sid)) {

      drupal_static_reset('webform_get_submission');

      $old_submission = webform_get_submission($node->nid, $submission->sid);

      foreach ($node->webform['components'] as $cid => $component) {

        if ($component['type'] == 'file') {

          if (!empty($old_submission->data[$cid])) {

            $old_fids = array_merge($old_fids, $old_submission->data[$cid]);

          }

        }

      }

    }

    // Only rename files if this is the first time the submission is being saved as finished.

    if ($submission->is_draft || (isset($old_submission) && !$old_submission->is_draft)) {

      $renameable = array();

    }

    // Save the list of added or removed files so we can add usage in

    // hook_webform_submission_insert() or _update().

    $submission->file_usage = array(

      // Diff the old against new to determine what files were deleted.

      'deleted_fids' => array_diff($old_fids, $new_fids),

      // Diff the new files against old to determine new uploads.

      'added_fids' => array_diff($new_fids, $old_fids),

      // A list of files which need renaming with tokens.

      'renameable' => $renameable,

    );

  }

}

/**

 * Implements hook_webform_submission_insert().

 */

function webform_webform_submission_insert($node, $submission) {

  if (isset($submission->file_usage)) {

    webform_component_include('file');

    webform_file_usage_adjust($submission);

    webform_file_rename($node, $submission);

  }

}

/**

 * Implements hook_webform_submission_update().

 */

function webform_webform_submission_update($node, $submission) {

  if (isset($submission->file_usage)) {

    webform_component_include('file');

    webform_file_usage_adjust($submission);

    webform_file_rename($node, $submission);

  }

}

/**

 * Implements hook_webform_submission_render_alter().

 */

function webform_webform_submission_render_alter(&$renderable) {

  // If displaying a submission to end-users who are viewing their own

  // submissions (and not through an e-mail), do not show hidden values.

  // This needs to be implemented at the level of the entire submission, since

  // individual components do not get contextual information about where they

  // are being displayed.

  $node = $renderable['#node'];

  $is_admin = webform_results_access($node);

  if (empty($renderable['#email']) && !$is_admin) {

    // Find and hide the display of all hidden components.

    module_load_include('inc', 'webform', 'includes/webform.components');

    foreach ($node->webform['components'] as $cid => $component) {

      if ($component['type'] == 'hidden') {

        $parents = webform_component_parent_keys($node, $component);

        $element = &$renderable;

        foreach ($parents as $pid) {

          $element = &$element[$pid];

        }

        $element['#access'] = FALSE;

      }

    }

  }

}

/**

 * Implements hook_file_download().

 *

 * Only allow users with view webform submissions to download files.

 */

function webform_file_download($uri) {

  module_load_include('inc', 'webform', 'includes/webform.submissions');

  // Determine whether this file was a webform upload.

  $row = db_query("SELECT fu.id as sid, f.fid FROM {file_managed} f LEFT JOIN {file_usage} fu ON f.fid = fu.fid AND fu.module = :webform AND fu.type = :submission WHERE f.uri = :uri", array('uri' => $uri, ':webform' => 'webform', ':submission' => 'submission'))->fetchObject();

  if ($row) {

    $file = file_load($row->fid);

  }

  if (!empty($row->sid)) {

    $submissions = webform_get_submissions(array('sid' => $row->sid));

    $submission = reset($submissions);

  }

  // Grant or deny file access based on access to the submission.

  if (!empty($submission)) {

    $node = node_load($submission->nid);

    if (webform_submission_access($node, $submission)) {

      return file_get_content_headers($file);

    }

    else {

      return -1;

    }

  }

  // Grant access to files uploaded by a user before the submission is saved.

  elseif (!empty($file) && !empty($_SESSION['webform_files'][$file->fid])) {

    return file_get_content_headers($file);

  }

  // Ensure we never completely ignore a webform file request.

  if (strpos(file_uri_target($uri), 'webform/') === 0) {

    // The file is not part of a submission or a submission-in-progress (by

    // the current user), however it may be part of a submission-in-progress

    // (or an abandoned submission) by another user. We assume that all files

    // under our enforced directory prefix are in fact webform files, and so

    // we deny access to the file. Abandoned uploads will be deleted by

    // system_cron() in due course.

    return -1;

  }

}

/**

 * Return all content type enabled with webform.

 *

 * @return array

 *   An array of node type names.

 */

function webform_node_types() {

  $types = &drupal_static(__FUNCTION__, NULL);

  if (!isset($types)) {

    $types = array();

    foreach (node_type_get_names() as $type => $name) {

      if (variable_get('webform_node_' . $type, FALSE)) {

        $types[] = $type;

      }

    }

  }

  return $types;

}

/**

 * Implements hook_node_type_delete().

 */

function webform_node_type_delete($info) {

  variable_del('webform_node_' . $info->type);

}

/**

 * Implements hook_node_insert().

 */

function webform_node_insert($node) {

  if (!variable_get('webform_node_' . $node->type, FALSE)) {

    return;

  }

  // If added directly through node_save(), set defaults for the node.

  if (!isset($node->webform)) {

    $node->webform = array();

  }

  // Ensure values for all defaults are provided. Useful for importing from

  // older versions into newer ones.

  $node->webform += webform_node_defaults();

  // Do not make an entry if this node does not have any Webform settings.

  if ($node->webform == webform_node_defaults() && !in_array($node->type, webform_variable_get('webform_node_types_primary'))) {

    return;

  }

  module_load_include('inc', 'webform', 'includes/webform.components');

  module_load_include('inc', 'webform', 'includes/webform.conditionals');

  module_load_include('inc', 'webform', 'includes/webform.emails');

  // Prepare the record for writing.

  $node->webform['nid'] = $node->nid;

  $webform_record = $node->webform;

  $webform_record['preview_excluded_components'] = implode(',', $webform_record['preview_excluded_components']);

  // Insert the webform.

  $node->webform['record_exists'] = (bool) drupal_write_record('webform', $webform_record);

  // Insert the components into the database. Used with clone.module.

  if (isset($node->webform['components']) && !empty($node->webform['components'])) {

    foreach ($node->webform['components'] as $cid => $component) {

      $component['nid'] = $node->nid; // Required for clone.module.

      webform_component_insert($component);

    }

  }

  // Insert conditionals. Also used with clone.module.

  if (isset($node->webform['conditionals']) && !empty($node->webform['conditionals'])) {

    foreach ($node->webform['conditionals'] as $rgid => $conditional) {

      $conditional['nid'] = $node->nid;

      $conditional['rgid'] = $rgid;

      webform_conditional_insert($conditional);

    }

  }

  // Insert emails. Also used with clone.module.

  if (isset($node->webform['emails']) && !empty($node->webform['emails'])) {

    foreach ($node->webform['emails'] as $eid => $email) {

      $email['nid'] = $node->nid;

      webform_email_insert($email);

    }

  }

  // Set the per-role submission access control.

  foreach (array_filter($node->webform['roles']) as $rid) {

    db_insert('webform_roles')->fields(array('nid' => $node->nid, 'rid' => $rid))->execute();

  }

  // Flush the block cache if creating a block.

  if (function_exists('block_flush_caches') && $node->webform['block']) {

    block_flush_caches();

  }

}

/**

 * Implements hook_node_update().

 */

function webform_node_update($node) {

  if (!variable_get('webform_node_' . $node->type, FALSE)) {

    return;

  }

  // Check if this node needs a webform record at all. If it matches the

  // defaults, any existing record will be deleted.

  webform_check_record($node);

  // If a webform row doesn't even exist, we can assume it needs to be inserted.

  // If the the webform matches the defaults, no row will be inserted.

  if (!$node->webform['record_exists']) {

    webform_node_insert($node);

    return;

  }

  // Prepare the record for writing.

  $node->webform['nid'] = $node->nid;

  $webform_record = $node->webform;

  $webform_record['preview_excluded_components'] = implode(',', $webform_record['preview_excluded_components']);

  // Update the webform entry.

  drupal_write_record('webform', $webform_record, array('nid'));

  // Compare the webform components and don't do anything if it's not needed.

  $original = $node->original;

  if ($original->webform['components'] != $node->webform['components']) {

    module_load_include('inc', 'webform', 'includes/webform.components');

    $original_cids = array_keys($original->webform['components']);

    $current_cids = array_keys($node->webform['components']);

    $all_cids = array_unique(array_merge($original_cids, $current_cids));

    $deleted_cids = array_diff($original_cids, $current_cids);

    $inserted_cids = array_diff($current_cids, $original_cids);

    foreach ($all_cids as $cid) {

      $node->webform['components'][$cid]['nid'] = $node->nid;

      if (in_array($cid, $inserted_cids)) {

        webform_component_insert($node->webform['components'][$cid]);

      }

      elseif (in_array($cid, $deleted_cids)) {

        webform_component_delete($node, $original->webform['components'][$cid]);

      }

      elseif ($node->webform['components'][$cid] != $original->webform['components'][$cid]) {

        webform_component_update($node->webform['components'][$cid]);

      }

    }

  }

  // Compare the webform conditionals and don't do anything if it's not needed.

  if ($original->webform['conditionals'] != $node->webform['conditionals']) {

    module_load_include('inc', 'webform', 'includes/webform.conditionals');

    // Conditionals don't have unique site-wide IDs or configuration, so our

    // update here is a bit more aggressive than for components and e-mails.

    foreach ($original->webform['conditionals'] as $rgid => $conditional) {

      if (!isset($node->webform['conditionals'][$rgid]) || $original->webform['conditionals'][$rgid] != $node->webform['conditionals'][$rgid]) {

        webform_conditional_delete($node, $conditional);

      }

    }

    foreach ($node->webform['conditionals'] as $rgid => $conditional) {

      $conditional['nid'] = $node->nid;

      $conditional['rgid'] = $rgid;

      webform_conditional_insert($conditional);

    }

  }

  // Compare the webform e-mails and don't do anything if it's not needed.

  if ($original->webform['emails'] != $node->webform['emails']) {

    module_load_include('inc', 'webform', 'includes/webform.emails');

    $original_eids = array_keys($original->webform['emails']);

    $current_eids = array_keys($node->webform['emails']);

    $all_eids = array_unique(array_merge($original_eids, $current_eids));

    $deleted_eids = array_diff($original_eids, $current_eids);

    $inserted_eids = array_diff($current_eids, $original_eids);

    foreach ($all_eids as $eid) {

      $node->webform['emails'][$eid]['nid'] = $node->nid;