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Improve Error 404 page behavior

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DL6ER 2017-03-28 23:02:00 +01:00
parent d38e034e92
commit f09c166350
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1 changed files with 16 additions and 0 deletions
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16
advanced/index.php
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@ -1,15 +1,31 @@
<?php
/* Detailed Pi-Hole Block Page: Show "Website Blocked" if user browses to site, but not to image/file requests based on the work of WaLLy3K for DietPi & Pi-Hole */
function validIP($address){
if (preg_match('/[.:0]/', $address) && !preg_match('/[1-9a-f]/', $address)) {
// Test if address contains either `:` or `0` but not 1-9 or a-f
return false;
}
return !filter_var($address, FILTER_VALIDATE_IP) === false;
}
$uri = escapeshellcmd($_SERVER['REQUEST_URI']);
$serverName = escapeshellcmd($_SERVER['SERVER_NAME']);
// Retrieve server URI extension (EG: jpg, exe, php)
ini_set('pcre.recursion_limit',100);
$uriExt = pathinfo($uri, PATHINFO_EXTENSION);
// Define which URL extensions get rendered as "Website Blocked"
$webExt = array('asp', 'htm', 'html', 'php', 'rss', 'xml');
// Immediately quit since we didn't block this page (the IP address or pi.hole is explicitly requested)
if(validIP($serverName) || $serverName === "pi.hole")
{
http_response_code(404);
die();
}
if(in_array($uriExt, $webExt) || empty($uriExt))
{
// Requested resource has an extension listed in $webExt