1--TEST--
2libxml_disable_entity_loader()
3--SKIPIF--
4<?php
5if (!extension_loaded('libxml')) die('skip libxml extension not available');
6if (!extension_loaded('dom')) die('skip dom extension not available');
7if (LIBXML_VERSION < 20912) die('skip For libxml2 >= 2.9.12 only');
8--FILE--
9<?php
10
11$xml = <<<EOT
12<?xml version="1.0" encoding="UTF-8"?>
13<!DOCTYPE test [<!ENTITY xxe SYSTEM "XXE_URI">]>
14<foo>&xxe;</foo>
15EOT;
16
17$dir = str_replace('\\', '/', __DIR__);
18$xml = str_replace('XXE_URI', $dir . '/libxml_disable_entity_loader_payload.txt', $xml);
19
20function parseXML($xml) {
21  $doc = new DOMDocument();
22  $doc->resolveExternals = true;
23  $doc->substituteEntities = true;
24  $doc->validateOnParse = false;
25  $doc->loadXML($xml, 0);
26  return $doc->saveXML();
27}
28
29var_dump(strpos(parseXML($xml), 'SECRET_DATA') !== false);
30var_dump(libxml_disable_entity_loader(true));
31var_dump(strpos(parseXML($xml), 'SECRET_DATA') === false);
32
33echo "Done\n";
34?>
35--EXPECTF--
36bool(true)
37bool(false)
38
39Warning: DOMDocument::loadXML(): I/O warning : failed to load external entity "%s" in %s on line %d
40bool(true)
41Done
42