prohibit linking directly to AJAX pages within a specific folder

Question

prohibit linking directly to AJAX pages within a specific folder

Is there a way to prevent direct access to pages in the AJAX directory while still allowing them to be served from their parent page? I've tried various .htaccess configurations, but they end up blocking access from the main page as well. Essentially, I want to restrict users from accessing , but still have page1.html loaded into its parent page via AJAX.

<LIMIT GET POST>
Order deny, allow
deny from all
</LIMIT>

This configuration blocks all access entirely.

One suggestion is to define a flag in the parent file like define('IS_IN_SCRIPT', 1); and check for it in the AJAX pages. Would this solution work effectively with AJAX pages or is it more suitable for PHP includes?

ajax security .htaccess

Answer 1

Answer №1

Determining HTTP Referer in PHP

To determine the HTTP Referrer in PHP, you can use the $_SERVER['HTTP_REFERER'] variable and check if it is from your domain or a list of acceptable domains.

If the referrer is not from your domain, you can redirect to another page.

if (!empty($_SERVER['HTTP_REFERER']) && strpos($_SERVER['HTTP_REFERER'], 'yourdomain.com') !== false) 
  { echo 'This request is probably from your own site'; }

Answer 2

Determining HTTP Referer in PHP

To determine the HTTP Referrer in PHP, you can use the $_SERVER['HTTP_REFERER'] variable and check if it is from your domain or a list of acceptable domains.

If the referrer is not from your domain, you can redirect to another page.

if (!empty($_SERVER['HTTP_REFERER']) && strpos($_SERVER['HTTP_REFERER'], 'yourdomain.com') !== false) 
  { echo 'This request is probably from your own site'; }

Answer 3

Answer №2

If you don't receive a specific parameter through GET or POST in your ajax request, you have the option to redirect the user to another page for further action.

In PHP, the code snippet would appear as follows:

if(!isset($_POST['some_var']))
  header('Location: somePage.html');

Answer 4

If you don't receive a specific parameter through GET or POST in your ajax request, you have the option to redirect the user to another page for further action.

In PHP, the code snippet would appear as follows:

if(!isset($_POST['some_var']))
  header('Location: somePage.html');

Answer 5

Answer №3

$$ zoe_daemon

To access private files from a parent page using AJAX, you will need to create a "linker" file.

/*This linker file allows you to open private files located in the "private" folder from the parent page via AJAX.*/
//begin linker.php
<?php
   $link = $_GET["link"];
   include "../private/$link.php";
?>
//end linker.php

The files within the "private" folder should also have code to prevent direct access if the request URI does not contain the string "private". For example, if you have a file like "login.php" in the "private" folder, you can add this code snippet before any operational code:

//begin login.php
$count = 0;
$test = str_replace("name_of_directory_cannot_directly","dummy_string",$_SERVER['REQUEST_URI'], $count ); //or
if ($count > 0) {
    die "Ooouuuppppsss, you cannot access this file directly");
}
/*
//your code here....
*/
//end login.php

Answer 6

$$ zoe_daemon

To access private files from a parent page using AJAX, you will need to create a "linker" file.

/*This linker file allows you to open private files located in the "private" folder from the parent page via AJAX.*/
//begin linker.php
<?php
   $link = $_GET["link"];
   include "../private/$link.php";
?>
//end linker.php

The files within the "private" folder should also have code to prevent direct access if the request URI does not contain the string "private". For example, if you have a file like "login.php" in the "private" folder, you can add this code snippet before any operational code:

//begin login.php
$count = 0;
$test = str_replace("name_of_directory_cannot_directly","dummy_string",$_SERVER['REQUEST_URI'], $count ); //or
if ($count > 0) {
    die "Ooouuuppppsss, you cannot access this file directly");
}
/*
//your code here....
*/
//end login.php

prohibit linking directly to AJAX pages within a specific folder

Answer №1

Answer №2

Answer №3

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