t('UWho client block'),
'cache' => DRUPAL_CACHE_PER_USER
)
);
}
/**
* Implementation of hook_block_configure()
*/
function uwho_client_block_configure($delta = ''){
return array(
'uwho_link_text' => array(
'#type' => 'textfield',
'#title' => t('Link text'),
'#description' => t('Override the default linktext ("Login to remote site").'),
'#default_value' => variable_get('uwho_client_link_text', '')
),
'uwho_client_key' => array(
'#title' => t('UWho Client Key'),
'#description' => t('Enter the key from the site you\'d like to enable your users to login to.'),
'#type' => 'textfield',
'#default_value' => variable_get('uwho_client_key', '')
),
'uwho_client_url' => array(
'#title' => t('UWho Client URL'),
'#description' => t('Enter the URL of the site you\'d like to enable your users to login to. This must be EXACTLY as provided by the other site.'),
'#type' => 'textfield',
'#default_value' => variable_get('uwho_client_url', '')
),
'uwho_client_redirect_path' => array(
'#title' => t('UWho Client Redirect Path'),
'#description' => t('Enter the path to which you\'d like to redirect to once logged in.'),
'#type' => 'textfield',
'#default_value' => variable_get('uwho_client_redirect_path', '')
)
);
}
/**
* Implementation of hook_block_save()
*/
function uwho_client_block_save($delta = '', $edit = array()){
variable_set('uwho_client_link_text', $edit['uwho_link_text']);
variable_set('uwho_client_key', $edit['uwho_client_key']);
variable_set('uwho_client_url', $edit['uwho_client_url']);
variable_set('uwho_client_redirect_path', $edit['uwho_client_redirect_path']);
}
/**
* Implementation of hook_block_view()
*/
function uwho_client_block_view($delta = ''){
return array(
'subject' => t('UWho Login Block'),
'content' => uwho_client_block_content(variable_get('uwho_client_key', FALSE), variable_get('uwho_client_url', FALSE), variable_get('uwho_client_redirect_path', FALSE), variable_get('uwho_client_link_text', FALSE))
);
}
/**
* helper function for above which returns the block content
*/
function uwho_client_block_content($key, $url, $redirect = FALSE, $text = FALSE){
// If we're not logged in, and the text is set, then we'll simply return a
// link
global $user;
if(!$user->uid){return ($text != '') ? '' . $text . '' : '';}
if(!$text){
$text = t('Login to remote site');
}
// First, we need to get the key that has been set, if no key is set, we
// return the empty string.
// If one of the essential settings hasn't been set, error!
if(!($key && $url)){return t('Please set the Key and URL on the settings page', array(
'!settings_page' => url('admin/structure/block/manage/uwho_client/0/configure')
));}
// Load the class file
require_once libraries_get_path('cryptastic') . '/cryptastic.php';
$cryptastic = new cryptastic();
$site_url = url('', array(
'absolute' => TRUE
));
$url_parts = parse_url($site_url);
$encrypted = &drupal_static(__FUNCTION__, array());
if(!isset($encrypted[$key][$url])){
$crypt_key = $cryptastic->pbkdf2($key, $key . $url, 1000, 32);
$encrypted[$key][$url] = $cryptastic->encrypt(array(
'site_url' => $site_url,
'guid' => $url_parts['host'] . ':' . (strlen($url_parts['path']) > 1 ? $url_parts['path'] . ':' : '') . $user->uid,
'user' => array(
'url' => url('user/' . $user->uid, array(
'absolute' => TRUE
)),
'name' => $user->name,
'mail' => $user->mail,
'drupal_user_object' => $user
)
), $crypt_key, TRUE);
if(!$encrypted[$key][$url]){
watchdog('uwho', 'Encryption failed');
return '';
}
}
// We need to ensure that jquery.js is added to the page
// FIXME - Is this still necessary?
drupal_add_js(array(), 'setting');
if(variable_get('reverse_proxy', FALSE) || (isset($_COOKIE['has_js']) && $_COOKIE['has_js'])){
$link_or_button = '' . $text . '';
}else{
$link_or_button = '';
}
// Note, we only include the data in the URL, if the length of the data and
// URL is less than 1800 characters. This helps to ensure we don't go over
// apache's URL length limit.
return '';
}