290 lines
8.4 KiB
PHP
290 lines
8.4 KiB
PHP
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<?php defined('SYSPATH') or die('No direct access allowed.');
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/**
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* OSB Auth driver.
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*
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* @package OSB
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* @subpackage Account
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* @category Auth
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* @author Deon George
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* @copyright (c) 2010 Deon George
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* @license http://dev.leenooks.net/license.html
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*/
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class Auth_OSB extends Auth_ORM {
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/**
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* OSB authentication is controlled via database queries.
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*
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* This method can be used to test two situations:
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* 1) Is the user logged in? ($role == FALSE)
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* 2) Can the user run the current controller->action ($role == TRUE)
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*
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* @param boolean If authentication should be done for this module:method (ie: controller:action).
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* @return boolean
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*/
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public function logged_in($role = NULL, $debug = NULL) {
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$status = FALSE;
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// Get the user from the session
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$user = $this->get_user(FALSE);
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// If we are not a valid user object, then we are not logged in
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if (is_object($user) AND $user instanceof Model_Account AND $user->loaded()) {
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if (Config::sitemode() == Kohana::DEVELOPMENT && Kohana::config('config.site_debug'))
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SystemMessage::add(array('title'=>'Debug','type'=>'debug','body'=>Kohana::debug(array('user'=>$user->username,'r'=>$role))));
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if (! empty($role)) {
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// Get the module details
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$module = ORM::factory('module',array('name'=>Request::instance()->controller));
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if (! $module->loaded() OR ! $module->status) {
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SystemMessage::add(array(
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'title'=>'Module is not defined or active in the Database',
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'type'=>'warning',
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'body'=>sprintf('Module not defined: %s',Request::instance()->controller),
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));
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} else {
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if (Request::instance()->directory)
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$method_name = sprintf('%s_%s',Request::instance()->directory,Request::instance()->action);
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else
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$method_name = Request::instance()->action;
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// Get the method number
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$method = ORM::factory('module_method',array('module_id'=>$module->id,'name'=>$method_name));
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if (! $method->loaded()) {
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SystemMessage::add(array(
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'title'=>'Method is not defined or active in the Database',
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'type'=>'warning',
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'body'=>sprintf('Method not defined: %s for %s',Request::instance()->action,$module->name),
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));
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} else {
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// If the role has the authorisation to run the method
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$group_method = ORM::factory('group_method')
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->where('method_id','=',$method->id);
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$roles = '';
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foreach ($group_method->find_all() as $gm) {
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$roles .= ($roles ? '|' : '').$gm->group->name;
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$ro = ORM::factory('group', array('name' => $gm->group->name));
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// $ro->id == 0 means all users.
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if ($ro->id == 0 OR $user->has('group', $ro)) {
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$status = TRUE;
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$roles = '';
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break;
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}
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}
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if (! $status) {
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if (Config::sitemode() == Kohana::DEVELOPMENT)
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SystemMessage::add(array(
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'title'=>'User is not authorised in Database',
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'type'=>'debug',
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'body'=>sprintf('Role(s) checked: %s<br/>User: %s</br>Module: %s<br/>Method: %s',$roles,$user->username,$module->name,$method->name),
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));
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}
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}
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}
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if (Config::sitemode() == Kohana::DEVELOPMENT)
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SystemMessage::add(array(
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'title'=>'Debug',
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'type'=>'debug',
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'body'=>sprintf('A-User: <b>%s</b>, Module: <b>%s</b>, Method: <b>%s</b>, Role: <b>%s</b>, Status: <b>%s</b>, Data: <b>%s</b>',
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$user->username,Request::instance()->controller,Request::instance()->action,$role,$status,$debug)));
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// There is no role, so the method should be allowed to run as anonymous
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} else {
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if (Config::sitemode() == Kohana::DEVELOPMENT)
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SystemMessage::add(array(
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'title'=>'Debug',
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'type'=>'debug',
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'body'=>sprintf('B-User: <b>%s</b>, Module: <b>%s</b>, Method: <b>%s</b>, Status: <b>%s</b>, Data: <b>%s</b>',
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$user->username,Request::instance()->controller,Request::instance()->action,'No Role Default Access',$debug)));
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$status = TRUE;
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}
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// Check and see if we have a token to login and run the method
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} elseif ((! empty($_REQUEST['token']) AND $token = $_REQUEST['token']) OR $token=Session::instance()->get('token')) {
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if ($user=$this->_get_token_user($token) AND $user !== FALSE)
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$status = TRUE;
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} else {
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if (Config::sitemode() == Kohana::DEVELOPMENT)
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SystemMessage::add(array('title'=>'Debug','type'=>'debug','body'=>'No user logged in'));
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}
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return $status;
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}
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/**
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* Gets the currently logged in user from the session.
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* Returns FALSE if no user is currently logged in.
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*
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* @param boolean Check token users too
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* @return mixed
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*/
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public function get_user($tokenuser=TRUE) {
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$user = parent::get_user();
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// If we are not logged in, see if there is token for the usre
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if ($tokenuser AND $user === FALSE AND $token=Session::instance()->get('token')) {
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$user = $this->_get_token_user($token);
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}
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return $user;
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}
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/**
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* Get the user that a token applies to
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*
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* This will check that the token is valid (not expired and for the request)
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*
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* @param $token The token
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* @return mixed The user
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*/
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private function _get_token_user($token) {
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$mmto = ORM::factory('module_method_token',array('token'=>$token));
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$request = Request::instance();
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$user = FALSE;
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if ($mmto->loaded()) {
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if ($mmto->date_expire < time()) {
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SystemMessage::add(array(
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'title'=>_('Token Not Valid'),
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'type'=>'warning',
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'body'=>_('Token expired')));
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Session::instance()->delete('token');
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$mmto->delete();
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} else {
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// Check that the token is for this URI
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$mo = ORM::factory('module',array('name'=>$request->controller));
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$mmo = ORM::factory('module_method',
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array('name'=>$request->directory ? sprintf('%s_%s',$request->directory,$request->action) : $request->action));
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// Ignore the token if this is not the right method.
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if ($mmo->id == $mmto->method_id) {
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// @todo Implement single use tokens
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Session::instance()->set('token',$token);
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$user = ORM::factory('account',$mmto->account_id);
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}
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}
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}
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return $user;
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}
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/**
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* Logs a user in.
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*
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* @param string username
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* @param string password
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* @param boolean enable autologin
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* @return boolean
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*/
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protected function _login($user, $password, $remember)
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{
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if ( ! is_object($user))
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{
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$username = $user;
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// Load the user
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$user = ORM::factory('user');
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$user->where($user->unique_key($username), '=', $username)->find();
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}
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// If the passwords match, perform a login
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if ($user->has('group', ORM::factory('group', array('name' => 'Registered Users'))) AND $user->password === $password)
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{
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if ($remember === TRUE)
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{
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// Create a new autologin token
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$token = ORM::factory('user_token');
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// Set token data
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$token->user_id = $user->id;
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$token->expires = time() + $this->_config['lifetime'];
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$token->save();
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// Set the autologin cookie
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Cookie::set('authautologin', $token->token, $this->_config['lifetime']);
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}
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// Record our session ID, we may need to update our DB when we get a new ID
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$oldsess = session_id();
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// Finish the login
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$this->complete_login($user);
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// Do we need to update databases with our new sesion ID
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// @todo figure out where this is best to go
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$session_change_trigger = array('cart'=>'session_id');
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if (count($session_change_trigger) AND (session_id() != $oldsess)) {
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foreach ($session_change_trigger as $t => $c) {
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$orm = ORM::factory($t)
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->where($c,'=',$oldsess);
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$orm->session_id = session_id();
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$orm->save_all();
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}
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}
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return TRUE;
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}
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// Login failed
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return FALSE;
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}
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/**
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* Override the supplied find_salt() to enable disabling salt keys
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*/
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public function find_salt($password) {
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$salt = '';
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foreach ($this->_config['salt_pattern'] as $i => $offset) {
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// Find salt characters, take a good long look...
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if (is_numeric($offset))
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$salt .= substr($password, $offset + $i, 1);
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}
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return $salt;
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}
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/**
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* Determine if a user is authorised to view an account
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*
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* @param integer Account ID
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*
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* @return boolean TRUE if authorised, FALSE if not.
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*/
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public function authorised($aid) {
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if (! $this->get_user())
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return FALSE;
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// @todo Consider caching this.
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$ao = ORM::factory('account',$this->get_user()->id);
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if (! $ao->loaded() OR ($aid != $ao->id AND ! $ao->admin()))
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return FALSE;
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return TRUE;
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}
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/**
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* Disable KO3 hash_password function
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*/
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public function hash_password($password,$salt = FALSE) {
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return md5($password);
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}
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}
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?>
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