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<?php defined("SYSPATH") or die("No direct script access.");
/**
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2009 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* Provides a driver-based interface for managing users and groups.
*/
class IdentityProvider_Core {
protected static $instance;
// Configuration
protected $config;
// Driver object
protected $driver;
/**
* Returns a singleton instance of Identity.
* There can only be one Identity driver configured at a given point
*
* @param string configuration
* @return Identity_Core
*/
static function &instance() {
if (empty(self::$instance)) {
// Create a new instance
self::$instance = new IdentityProvider();
}
return self::$instance;
}
/**
* Frees the current instance of the identity provider so the next call to instance will reload
*
* @param string configuration
* @return Identity_Core
*/
static function reset() {
self::$instance = null;
Kohana::config_clear("identity");
}
/**
* Loads the configured driver and validates it.
*
* @return void
*/
public function __construct($config=null) {
if (empty($config)) {
$config = module::get_var("gallery", "identity_provider", "user");
}
// Test the config group name
if (($this->config = Kohana::config("identity." . $config)) === NULL) {
throw new Exception("@todo NO_USER_LIBRARY_CONFIGURATION_FOR: $config");
}
// Set driver name
$driver = "IdentityProvider_" . ucfirst($this->config["driver"]) ."_Driver";
// Load the driver
if ( ! Kohana::auto_load($driver)) {
throw new Kohana_Exception("core.driver_not_found", $this->config["driver"],
get_class($this));
}
// Initialize the driver
$this->driver = new $driver($this->config["params"]);
// Validate the driver
if ( !($this->driver instanceof IdentityProvider_Driver)) {
throw new Kohana_Exception("core.driver_implements", $this->config["driver"],
get_class($this), "IdentityProvider_Driver");
}
Kohana::log("debug", "Identity Library initialized");
}
/**
* Determine if if the current driver supports updates.
*
* @return boolean true if the driver supports updates; false if read only
*/
public function is_writable() {
return !empty($this->config["allow_updates"]);
}
/**
* @see IdentityProvider_Driver::guest.
*/
public function guest() {
return $this->driver->guest();
}
/**
* @see IdentityProvider_Driver::admin_user.
*/
public function admin_user() {
return $this->driver->admin_user();
}
/**
* @see IdentityProvider_Driver::create_user.
*/
public function create_user($name, $full_name, $password) {
return $this->driver->create_user($name, $full_name, $password);
}
/**
* @see IdentityProvider_Driver::is_correct_password.
*/
public function is_correct_password($user, $password) {
return $this->driver->is_correct_password($user, $password);
}
/**
* @see IdentityProvider_Driver::lookup_user.
*/
public function lookup_user($id) {
return $this->driver->lookup_user($id);
}
/**
* @see IdentityProvider_Driver::lookup_user_by_name.
*/
public function lookup_user_by_name($name) {
return $this->driver->lookup_user_by_name($name);
}
/**
* @see IdentityProvider_Driver::create_group.
*/
public function create_group($name) {
return $this->driver->create_group($name);
}
/**
* @see IdentityProvider_Driver::everybody.
*/
public function everybody() {
return $this->driver->everybody();
}
/**
* @see IdentityProvider_Driver::registered_users.
*/
public function registered_users() {
return $this->driver->registered_users();
}
/**
* @see IdentityProvider_Driver::lookup_group.
*/
public function lookup_group($id) {
return $this->driver->lookup_group($id);
}
/**
* @see IdentityProvider_Driver::lookup_group_by_name.
*/
public function lookup_group_by_name($name) {
return $this->driver->lookup_group_by_name($name);
}
/**
* @see IdentityProvider_Driver::get_user_list.
*/
public function get_user_list($ids) {
return $this->driver->get_user_list($ids);
}
/**
* @see IdentityProvider_Driver::groups.
*/
public function groups() {
return $this->driver->groups();
}
/**
* @see IdentityProvider_Driver::add_user_to_group.
*/
public function add_user_to_group($user, $group_id) {
return $this->driver->add_user_to_group($user, $group_id);
}
/**
* @see IdentityProvider_Driver::remove_user_to_group.
*/
public function remove_user_from_group($user, $group_id) {
return $this->driver->remove_user_from_group($user, $group_id);
}
} // End Identity
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