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Bug 1057176. Don't try to use the document's window for regexp evaluation in nsContentUtils::IsPatternMatching, since there might not be one. Just use the unprivileged junk scope. r=bholley

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This commit is contained in:
Boris Zbarsky 2014-09-04 15:26:39 -04:00
parent f9250dfe0d
commit 2555bedfb3
3 changed files with 37 additions and 3 deletions
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7
content/base/src/nsContentUtils.cpp
View File

@ -6396,10 +6396,11 @@ nsContentUtils::IsPatternMatching(nsAString& aValue, nsAString& aPattern,
NS_ASSERTION(aDocument, "aDocument should be a valid pointer (not null)");
AutoJSAPI jsapi;
if (NS_WARN_IF(!jsapi.Init(aDocument->GetWindow()))) {
return true;
}
jsapi.Init();
JSContext* cx = jsapi.cx();
// We can use the junk scope here, because we're just using it for
// regexp evaluation, not actual script execution.
JSAutoCompartment ac(cx, xpc::UnprivilegedJunkScope());
// The pattern has to match the entire value.
aPattern.Insert(NS_LITERAL_STRING("^(?:"), 0);

1
content/base/test/mochitest.ini
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@ -558,6 +558,7 @@ skip-if = buildapp == 'mulet' || buildapp == 'b2g' || toolkit == 'android' || e1
run-if = os == 'linux'
[test_bug1008126.html]
run-if = os == 'linux'
[test_bug1057176.html]
[test_caretPositionFromPoint.html]
[test_classList.html]
# This test fails on the Mac for some reason

32
content/base/test/test_bug1057176.html Normal file
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@ -0,0 +1,32 @@
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1057176
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1057176</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/** Test for Bug 1057176 **/
var doc = document.implementation.createDocument(null, null);
var elem = doc.createElementNS("http://www.w3.org/1999/xhtml", "input");
elem.pattern = "abc";
elem.value = "def";
ok(!elem.validity.valid, '"def" should not match the pattern "abc"');
elem.value = "abc";
ok(elem.validity.valid, '"abc" should match the pattern "abc"');
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1057176">Mozilla Bug 1057176</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>