'r4032login',
'callback' => 'r4032login_redirect',
'access' => TRUE,
'type' => MENU_CALLBACK,
);
$items[] = array(
'path' => 'admin/settings/r4032login',
'title' => t('Redirect 403 to User Login'),
'description' => t('Toggle display of denied message on login page.'),
'callback' => 'drupal_get_form',
'callback arguments' => array('r4032login_admin_settings'),
'access' => user_access('administer site configuration')
);
}
return $items;
}
function r4032login_admin_settings() {
$form = array();
$form['r4032login_display_denied_message'] = array(
'#type' => 'checkbox',
'#title' => t('Display access denied message on login page'),
'#default_value' => variable_get('r4032login_display_denied_message', TRUE)
);
$form['r4032login_user_register_message'] = array(
'#type' => 'textfield',
'#title' => t('User register message'),
'#description' => t('The message to display when a logged-in user tries to register another account through the !new_account. Drupal does not allow it, so regular users must log out first. Administrators should create new users in !link.', array('!new_account' => l('new account registration form', 'user/register'), '!link' => l(t('User management'), 'admin/user/user/create'))),
'#default_value' => variable_get('r4032login_user_register_message', t('You are not authorized to access this page.'))
);
return system_settings_form($form);
}
/**
* MENU_CALLBACK for /4032login
*
* Redirect anonymous users from 403 Access Denied pages to the /user/login page
* with a message explaining that they must login to view the requested page
* and a query string parameter appended to the url to return after login.
*/
function r4032login_redirect() {
global $user;
if ($user->uid == 0) {
if (variable_get('r4032login_display_denied_message', TRUE)) {
drupal_set_message(t('Access denied. You must login to view this page.'), 'error');
}
// using drupal_goto() with destination set causes a recursive redirect loop
header('Location: '. url('user/login', 'destination='. drupal_urlencode($_REQUEST['q']), NULL, TRUE), TRUE, 302);
exit;
}
// checking arg() returns r4032login
elseif ($_REQUEST['q'] == 'user/register') {
print theme('page', theme('r4032login_user_register'));
exit;
}
else {
print theme('page', theme('r4032login_denied'));
exit;
}
}
function theme_r4032login_denied() {
drupal_set_title(t('Access denied'));
return ''. t('You are not authorized to access this page.') .'
';
}
function theme_r4032login_user_register() {
drupal_set_title(t('Access denied'));
return ''. variable_get('r4032login_user_register_message', t('You are not authorized to access this page.')) .'
';
}