function ip_login_boot in IP Login 7.3

Same name and namespace in other branches

1. 6.2 ip_login.module \ip_login_boot()
2. 7.2 ip_login.module \ip_login_boot()

Implementation of hook_boot().

see http://drupal.org/node/509028

File

./ip_login.module, line 162

Allow user login by IP addresses, ranges or wildcards.

Code

function ip_login_boot() {

  // skip rest of this if user is logged in
  global $user;
  if ($user->uid != 0 || drupal_is_cli()) {
    return;
  }

  // skip rest of this if the admin has disabled IP login
  if (!variable_get('ip_login_enabled', 1)) {
    return;
  }

  // Avoid settings cookies if not on an IP Login-enabled page to improve
  // external caching support - http://drupal.org/node/1263234 thanks Vacilando
  if (ip_login_check_path() === FALSE) {
    return;
  }

  // check the user IP
  $matched_uid = ip_login_check(ip_login_ip_address());
  if ($matched_uid > 0) {
    $can_login_as_another_user = isset($_COOKIE[LOGIN_AS_DIFFERENT_USER]) ? $_COOKIE[LOGIN_AS_DIFFERENT_USER] : NULL;

    // for clarity about every scenario, use extensive logic
    if (is_null($can_login_as_another_user)) {

      // first time login for user, so log in automatically.
      ip_login_login($matched_uid);
      drupal_goto(ltrim(request_uri(), '/'));
    }
    elseif ($can_login_as_another_user == FALSE) {

      // user logged out, but is not allowed to use another user, so log in again.
      ip_login_login($matched_uid);
      drupal_goto(ltrim(request_uri(), '/'));
    }
    elseif ($can_login_as_another_user == TRUE) {

      // user logged out, and is allowed to login as another user,
      // so do nothing, just stay on this page and wait for user action.
    }
    else {

      // do automatic login.
      ip_login_login($matched_uid);
      drupal_goto(ltrim(request_uri(), '/'));
    }
  }
}