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Unique ID for each call to a controller

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- Added constant FHC_CONTROLLER_ID to FHC_Controller
- Added private property _controllerId to FHC_Controller
- Added protected method setControllerId to FHC_Controller
- Added protected method getControllerId to FHC_Controller
This commit is contained in:
Paolo
2018-05-15 19:19:29 +02:00
parent a075cc26b3
commit 748ab6fac3
1 changed files with 36 additions and 0 deletions
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application/core/FHC_Controller.php
+36
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@@ -4,6 +4,10 @@ if (! defined('BASEPATH')) exit('No direct script access allowed');
class FHC_Controller extends CI_Controller
{
const FHC_CONTROLLER_ID = 'fhc_controller_id'; // name of the parameter used to identify uniquely a call to a controller
private $_controllerId; // contains the unique identifier of a call to a controller
/**
* Standard construct for all the controllers, loads the authentication system
*/
@@ -11,6 +15,8 @@ class FHC_Controller extends CI_Controller
{
parent::__construct();
$this->_controllerId = null; // set _controllerId as null by default
$this->load->helper('fhcauth');
}
@@ -23,4 +29,34 @@ class FHC_Controller extends CI_Controller
{
$this->load->library('PhrasesLib', array($categories, $language), 'p');
}
/**
* Sets the unique id for the called controller
* NOTE: it is only working with HTTP GET request, not neeaded with POST
* because the first call to the controller is via HTTP GET,
* therefore a fhc_controller_id is already generated
*/
protected function setControllerId()
{
if ($_SERVER['REQUEST_METHOD'] === 'GET')
{
$this->_controllerId = $this->input->get(self::FHC_CONTROLLER_ID);
if (!isset($this->_controllerId) || empty($this->_controllerId))
{
$this->_controllerId = uniqid(); // generate a unique id
// Redirect to the same URL, but giving FHC_CONTROLLER_ID as HTTP GET parameter
header(sprintf('Location: %s?%s=%s', $_SERVER['REQUEST_URI'], self::FHC_CONTROLLER_ID, $this->_controllerId));
exit; // terminate immediately the execution of this controller
}
}
}
/**
* Return the value of the property _controllerId
*/
protected function getControllerId()
{
return $this->_controllerId;
}
}