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<?php defined('SYSPATH') or die('No direct script access.');
/*
* This file is part of open source system FreenetIS
* and it is release under GPLv3 licence.
*
* More info about licence can be found:
* http://www.gnu.org/licenses/gpl-3.0.html
*
* More info about project can be found:
* http://www.freenetis.org/
*
*/

/**
* The "Api_account_log_Model" model represents an audit log for API accounts
* that is capable to log incoming API requests and FreenetIS user account
* creating/modification.
*
* @author Ondřej Fibich <fibich@freenetis.org>
* @package Model
* @since 1.2
*
* @property int $id
* @property int $api_account_id ID of account that this log belongs to
* @property Api_account_Model $api_account Account that this log belongs to
* @property int $type Request type or non request action type
* @property datetime $date
* @property string $description Request path or other informations on non
* request actions
* @property int $responsible_user_id User who is responsible for non request
* actions logged by this model.
* @property User_Model $responsible_user
*/
class Api_account_log_Model extends ORM
{
protected $belongs_to = array('api_account', 'responsible_user' => 'user');
/** Request API type related to reading. */
const TYPE_RQ_READ = 1;
/** Request API type related to creating of a new object. */
const TYPE_RQ_CREATE = 2;
/** Request API type related to modification of an existion object. */
const TYPE_RQ_EDIT = 3;
/** Request API type related to deletion of an existing object. */
const TYPE_RQ_DELETE = 4;
/** Action type that represents account creation. */
const TYPE_CREATION = 5;
/** Action type that represents account details modification. */
const TYPE_DETAILS_CHANGE = 6;
/** Action type that represents account token modification. */
const TYPE_TOKEN_CHANGE = 7;
/**
* Name of ACL account log types.
*
* @var array
*/
private static $types = array
(
self::TYPE_RQ_READ => 'Read request',
self::TYPE_RQ_CREATE => 'Create request',
self::TYPE_RQ_EDIT => 'Modification request',
self::TYPE_RQ_DELETE => 'Delete request',
self::TYPE_CREATION => 'Account creation',
self::TYPE_DETAILS_CHANGE => 'Account details changed',
self::TYPE_TOKEN_CHANGE => 'Account token changed'
);
/**
* Get request type constant of HTTP method (GET, DELETE, POST and PUT).
*
* @param string $http_method HTTP method name
* @return integer|null request API account log constant
*/
public static function get_rq_type_of($http_method) {
switch (strtolower($http_method))
{
case 'get':
case 'head':
return self::TYPE_RQ_READ;
case 'post':
return self::TYPE_RQ_CREATE;
case 'put':
return self::TYPE_RQ_EDIT;
case 'delete':
return self::TYPE_RQ_DELETE;
default:
return NULL;
}
}

/**
* Returns all types of API account logs.
*
* @return array
*/
public static function get_types()
{
return array_map('__', self::$types);
}
/**
* Gets type name.
*
* @param int $type constant
* @param boolean $translate should be translated? [optional: true]
* @return string type name that may be translated
*/
public static function get_type_name($type, $translate = TRUE)
{
if (array_key_exists($type, self::$types))
{
if ($translate)
{
return __(self::$types[$type]);
}
return self::$types[$type];
}
return NULL;
}
/**
* Is given type a user action log?
*
* @param integer $type type constant
* @return boolean
*/
public static function type_is_user($type)
{
return ($type === self::TYPE_CREATION) ||
($type === self::TYPE_DETAILS_CHANGE) ||
($type === self::TYPE_TOKEN_CHANGE);
}
/**
* Is given type a request log?
*
* @param integer $type type constant
* @return boolean
*/
public static function type_is_request($type)
{
return array_key_exists($type, self::$types) &&
!self::type_is_user($type);
}

/**
* Creates model without logging.
*
* @param integer $id
*/
public function __construct($id = NULL)
{
parent::__construct($id);

// disable action log
$this->set_logger(FALSE);
}

/**
* Gets logs of API account with given ID for grid.
*
* @param integer $api_account_id
* @param integer $limit_from
* @param integer $limit_results
* @param string $order_by
* @param string $order_by_direction
* @param string $filter_sql
* @return Mysql_Result
*/
public function get_account_logs($api_account_id, $limit_from,
$limit_results, $order_by, $order_by_direction, $filter_sql)
{
$where = '';
if (!empty($filter_sql))
{
$where = ' AND ' . $filter_sql;
}
// order by direction check
if (strtolower($order_by_direction) != 'desc')
{
$order_by_direction = 'asc';
}
// query
return $this->db->query("
SELECT l.id, l.type, l.description, l.date, l.responsible_user_id,
CONCAT(u.name, ' ', u.surname, ' - ', u.login) AS
responsible_user_name
FROM api_account_logs l
LEFT JOIN users u ON u.id = l.responsible_user_id
WHERE l.api_account_id = ? $where
ORDER BY ".$this->db->escape_column($order_by)." $order_by_direction
LIMIT " . intval($limit_from) . ", " . intval($limit_results) . "
", $api_account_id);
}

/**
* Counts logs of API account with given ID.
*
* @param integer $api_account_id
* @param string $filter_sql
* @return integer
*/
public function count_account_logs($api_account_id, $filter_sql)
{
$where = '';
if (!empty($filter_sql))
{
$where = ' AND ' . $filter_sql;
}
// query
return $this->db->query("
SELECT COUNT(*) AS count FROM (
SELECT l.id, l.type, l.description, l.date, l.responsible_user_id,
CONCAT(u.name, ' ', u.surname, ' - ', u.login) AS
responsible_user_name
FROM api_account_logs l
LEFT JOIN users u ON u.id = l.responsible_user_id
WHERE l.api_account_id = ? $where
) c
", $api_account_id)->current()->count;
}

}
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