Bug 792280 - Only censor function.caller for non-same-origin calls. r=luke

This commit is contained in:
Bobby Holley 2012-10-17 17:56:49 +02:00
Родитель 84d6a72931
Коммит 7c0ed6fd80
3 изменённых файлов: 50 добавлений и 2 удалений

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@ -169,10 +169,20 @@ fun_getProperty(JSContext *cx, HandleObject obj_, HandleId id, MutableHandleValu
}
vp.set(iter.calleev());
if (!cx->compartment->wrap(cx, vp.address()))
return false;
/* Censor the caller if it is from another compartment. */
/*
* Censor the caller if we can't PUNCTURE it.
*
* NB - This will get much much nicer with bug 800915
*/
JSObject &caller = vp.toObject();
if (caller.compartment() != cx->compartment) {
JSErrorReporter reporter = JS_SetErrorReporter(cx, NULL);
bool punctureThrew = !UnwrapObjectChecked(cx, &caller);
JS_SetErrorReporter(cx, reporter);
if (punctureThrew) {
JS_ClearPendingException(cx);
vp.setNull();
} else if (caller.isFunction()) {
JSFunction *callerFun = caller.toFunction();

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@ -39,6 +39,7 @@ MOCHITEST_CHROME_FILES = \
test_bug763343.xul \
test_bug771429.xul \
test_bug773962.xul \
test_bug792280.xul \
test_bug793433.xul \
test_bug795275.xul \
test_bug799348.xul \

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@ -0,0 +1,37 @@
<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=792280
-->
<window title="Mozilla Bug 792280"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=792280"
target="_blank">Mozilla Bug 792280</a>
</body>
<!-- test code goes here -->
<script type="application/javascript">
<![CDATA[
/** Test for Bug 792280 **/
const Cu = Components.utils;
function checkSb(sb, allowed) {
var target = new Cu.Sandbox('http://www.example.com');
Cu.evalInSandbox('function fun() { return arguments.callee.caller; };', target);
sb.fun = target.fun;
var uncensored = Cu.evalInSandbox('function doTest() { return fun() == doTest; }; doTest()', sb);
is(uncensored, allowed, "should censor appropriately");
}
checkSb(new Cu.Sandbox('http://www.example.com'), true);
checkSb(new Cu.Sandbox('http://www.example.org'), false);
checkSb(new Cu.Sandbox(window), false);
]]>
</script>
</window>