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--TEST--
Bug #80927 (Removing documentElement after creating attribute node: possible use-after-free)
--EXTENSIONS--
dom
--FILE--
<?php
function test1() {
$dom = new DOMDocument();
$dom->appendChild($dom->createElement("html"));
$a = $dom->createAttributeNS("fake_ns", "test:test");
$dom->removeChild($dom->documentElement);
echo $dom->saveXML();
var_dump($a->namespaceURI);
var_dump($a->prefix);
}
enum Test2Variation {
case REMOVE_DOCUMENT;
case REMOVE_CHILD;
}
function test2(Test2Variation $variation) {
$dom = new DOMDocument();
$dom->appendChild($dom->createElement("html"));
$a = $dom->createAttributeNS("fake_ns", "test:test");
$foo = $dom->appendChild($dom->createElement('foo'));
$foo->appendChild($dom->documentElement);
unset($foo);
match ($variation) {
Test2Variation::REMOVE_DOCUMENT => $dom->documentElement->remove(),
Test2Variation::REMOVE_CHILD => $dom->documentElement->firstElementChild->remove(),
};
echo $dom->saveXML();
var_dump($a->namespaceURI);
var_dump($a->prefix);
}
function test3() {
$dom = new DOMDocument();
$dom->appendChild($dom->createElement('html'));
$foobar = $dom->documentElement->appendChild($dom->createElementNS('some:ns', 'foo:bar'));
$foobar2 = $foobar->appendChild($dom->createElementNS('some:ns', 'foo:bar2'));
$foobar->remove();
unset($foobar);
$dom->documentElement->appendChild($foobar2);
echo $dom->saveXML();
var_dump($foobar2->namespaceURI);
var_dump($foobar2->prefix);
}
echo "--- Remove namespace declarator for attribute, root ---\n";
test1();
echo "--- Remove namespace declarator for attribute, moved root ---\n";
test2(Test2Variation::REMOVE_DOCUMENT);
echo "--- Remove namespace declarator for attribute, moved root child ---\n";
test2(Test2Variation::REMOVE_CHILD);
echo "--- Remove namespace declarator for element ---\n";
test3();
?>
--EXPECT--
--- Remove namespace declarator for attribute, root ---
<?xml version="1.0"?>
string(7) "fake_ns"
string(4) "test"
--- Remove namespace declarator for attribute, moved root ---
<?xml version="1.0"?>
string(7) "fake_ns"
string(4) "test"
--- Remove namespace declarator for attribute, moved root child ---
<?xml version="1.0"?>
<foo/>
string(7) "fake_ns"
string(4) "test"
--- Remove namespace declarator for element ---
<?xml version="1.0"?>
<html><foo:bar2 xmlns:foo="some:ns"/></html>
string(7) "some:ns"
string(3) "foo"
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