function _webform_submission_user_limit_check in Webform 6.3

Same name and namespace in other branches

1. 7.3 includes/webform.submissions.inc \_webform_submission_user_limit_check()

Check if the current user has exceeded the limit on this form.

Parameters

$node: The webform node to be checked.

Return value

Boolean TRUE if the user has exceeded their limit. FALSE otherwise.

2 calls to _webform_submission_user_limit_check()

webform_client_form_validate in ./webform.module

webform_node_view in ./webform.module

Implements hook_node_view().

File

includes/webform.submissions.inc, line 770

This file is loaded when handling submissions, either submitting new, editing, or viewing. It also contains all CRUD functions for submissions.

Code

function _webform_submission_user_limit_check($node) {
  global $user;

  // Check if submission limiting is enabled.
  if ($node->webform['submit_limit'] == '-1') {
    return FALSE;

    // No check enabled.
  }

  // Retrieve submission data for this IP address or username from the database.
  $query = 'SELECT count(*) ' . 'FROM {webform_submissions} ' . "WHERE (( 0 = %d AND remote_addr = '%s') OR (uid > 0 AND uid = %d)) " . 'AND submitted > %d AND nid = %d AND is_draft = 0';

  // Fetch all the entries from the database within the submit interval with this username and IP.
  $num_submissions_database = db_result(db_query($query, $user->uid, ip_address(), $user->uid, $node->webform['submit_interval'] != -1 ? time() - $node->webform['submit_interval'] : $node->webform['submit_interval'], $node->nid));

  // Double check the submission history from the users machine using cookies.
  $num_submissions_cookie = 0;
  if ($user->uid == 0 && variable_get('webform_use_cookies', 0)) {
    $cookie_name = 'webform-' . $node->nid;
    if (isset($_COOKIE[$cookie_name]) && is_array($_COOKIE[$cookie_name])) {
      foreach ($_COOKIE[$cookie_name] as $key => $timestamp) {
        if ($node->webform['submit_interval'] != -1 && $timestamp <= time() - $node->webform['submit_interval']) {

          // Remove the cookie if past the required time interval.
          $params = session_get_cookie_params();
          setcookie($cookie_name . '[' . $key . ']', '', 0, $params['path'], $params['domain'], $params['secure']);
        }
      }

      // Count the number of submissions recorded in cookies.
      $num_submissions_cookie = count($_COOKIE[$cookie_name]);
    }
    else {
      $num_submissions_cookie = 0;
    }
  }
  if ($num_submissions_database >= $node->webform['submit_limit'] || $num_submissions_cookie >= $node->webform['submit_limit']) {

    // Limit exceeded.
    return TRUE;
  }

  // Limit not exceeded.
  return FALSE;
}