dokuwiki/inc/HTTP/Headers.php at master · alexlehm/dokuwiki

Repository navigation

<?php

namespace dokuwiki\HTTP;

/**

* Utilities to send HTTP Headers

class Headers

{

/**

* Send a Content-Security-Polica Header

* Expects an associative array with individual policies and their values

* @param array $policy

public static function contentSecurityPolicy($policy)

{

foreach ($policy as $key => $values) {

// if the value is not an array, we also accept newline terminated strings

if (!is_array($values)) $values = explode("\n", $values);

$values = array_map('trim', $values);

$values = array_unique($values);

$values = array_filter($values);

$policy[$key] = $values;

}

$cspheader = 'Content-Security-Policy:';

foreach ($policy as $key => $values) {

if ($values) {

$cspheader .= " $key " . implode(' ', $values) . ';';

} else {

$cspheader .= " $key;";

}

header($cspheader);

}