function ip_login_user_logout in IP Login 7.2

Same name and namespace in other branches

1. 6.2 ip_login.module \ip_login_user_logout()
2. 7.3 ip_login.module \ip_login_user_logout()
3. 4.x ip_login.module \ip_login_user_logout()

Implementation of hook_user_logout

Called from hook_user on logout, most of the code taken from user_logout() and _drupal_bootstrap(DRUPAL_BOOTSTRAP_SESSION). D7-changes: this is now an implementation of a hook, so:

• Only do a logout, leave the automatic login to ip_login_boot;
• prevent logging out if needed, just by calling drupal_goto()
• N.B. check user_logout() in user.pages.inc; this is the calling function;
• N.B. check devel_switch_user() in devel.module; here users are switched, too;

File

./ip_login.module, line 543

Allow user login by IP addresses, ranges or wildcards.

Code

function ip_login_user_logout() {

  // prevent recursive call via user_module_invoke() / module_invoke_all() in user.pages.inc
  if (!ip_login_is_possible()) {
    return;
  }
  else {
    $_SESSION[IP_CHECKED] = FALSE;
    $_SESSION[IP_UID_MATCH] = 0;
  }
  global $user;

  // store whether this user can log back in automatically
  $can_login_as_another_user = _ip_login_can_login_as_another_user($user);

  // sets indicator to behaviour in hook_boot().
  $expire = 0;

  // Cookie expires at the end of the session (when the browser closes).
  setcookie(LOGIN_AS_DIFFERENT_USER, $can_login_as_another_user, $expire, '/');
  if (!$can_login_as_another_user) {

    // @todo: it is possible that some other hook_user_logout() has been called already
    // does this generate an undetermined state?
    $message = t(variable_get('ip_login_logged_back_in', 'This account does not have permission to log out once logged in automatically. You have been logged back in.'));
    $message = token_replace($message, array(
      'user' => $user,
    ), array(
      'clear' => TRUE,
    ));
    drupal_set_message($message, 'warning');

    // show the login page
    drupal_goto(variable_get('ip_login_destination', 'user'));
  }
}