subsumption_algorithm-hashes.html
<!DOCTYPE html>
<html>
<head>
<title>Embedded Enforcement: Subsumption Algorithm - Hashes.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/testharness-helper.sub.js"></script>
</head>
<body>
<script>
var tests = [
{ "name": "'sha256-abc123' is properly subsumed.",
"required_csp": "style-src 'sha256-abc123'",
"returned_csp_1": "style-src 'sha256-abc123'",
"expected": IframeLoad.EXPECT_LOAD },
{ "name": "Returned should not include hashes not present in required csp.",
"required_csp": "style-src http://example.com",
"returned_csp_1": "style-src 'sha256-abc123'",
"expected": IframeLoad.EXPECT_BLOCK },
{ "name": "'sha256-abc123' is properly subsumed with other sources.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'unsafe-hashed-attributes' 'strict-dynamic' 'sha256-abc123'",
"returned_csp_1": "style-src http://example1.com/foo/bar.html 'sha256-abc123'",
"expected": IframeLoad.EXPECT_LOAD },
{ "name": "Hashes do not have to be present in returned csp.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"returned_csp_1": "style-src http://example1.com/foo/",
"expected": IframeLoad.EXPECT_LOAD },
{ "name": "Hashes do not have to be present in returned csp but must not allow all inline behavior.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"returned_csp_1": "style-src http://example1.com/foo/ 'unsafe-inline'",
"expected": IframeLoad.EXPECT_BLOCK },
{ "name": "Other expressions have to be subsumed.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"returned_csp_1": "style-src http://example1.com/foo/ 'unsafe-eval' 'sha256-abc123'",
"expected": IframeLoad.EXPECT_BLOCK },
{ "name": "Other expressions have to be subsumed but 'unsafe-inline' gets ignored.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"returned_csp_1": "style-src http://example1.com/foo/ 'unsafe-inline' 'sha256-abc123'",
"expected": IframeLoad.EXPECT_LOAD },
{ "name": "Effective policy is properly found.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"returned_csp_1": "style-src http://example1.com/foo/ 'unsafe-hashed-attributes' 'sha256-abc123'",
"returned_csp_2": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"expected": IframeLoad.EXPECT_LOAD },
{ "name": "Required csp must allow 'sha256-abc123'.",
"required_csp": "style-src http://example1.com/foo/ 'self'",
"returned_csp_1": "style-src http://example1.com/foo/ 'self' 'sha256-abc123'",
"expected": IframeLoad.EXPECT_BLOCK },
{ "name": "Effective policy is properly found where 'sha256-abc123' is not subsumed.",
"required_csp": "style-src http://example1.com/foo/ 'self'",
"returned_csp_1": "style-src 'unsafe-hashed-attributes' 'sha256-abc123'",
"returned_csp_2": "style-src 'sha256-abc123' 'unsafe-inline'",
"expected": IframeLoad.EXPECT_BLOCK },
{ "name": "'sha256-abc123' is not subsumed by 'sha256-abc456'.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc456'",
"returned_csp_1": "style-src 'unsafe-hashed-attributes' 'sha256-abc123'",
"returned_csp_2": "style-src 'sha256-abc123' 'unsafe-inline'",
"expected": IframeLoad.EXPECT_BLOCK },
{ "name": "Effective policy now does not allow 'sha256-abc123'.",
"required_csp": "style-src http://example1.com/foo/ 'self' 'sha256-abc456'",
"returned_csp_1": "style-src 'unsafe-hashed-attributes' 'sha256-abc123' 'sha256-abc456'",
"returned_csp_2": "style-src 'sha256-abc456' 'unsafe-inline'",
"expected": IframeLoad.EXPECT_LOAD },
{ "name": "Effective policy is properly found where 'sha256-abc123' is not part of it.",
"required_csp": "style-src http://example1.com/foo/ 'self'",
"returned_csp_1": "style-src 'unsafe-hashed-attributes' 'self'",
"returned_csp_2": "style-src 'sha256-abc123' 'self'",
"expected": IframeLoad.EXPECT_LOAD },
];
tests.forEach(test => {
async_test(t => {
var url = generateUrlWithPolicies(Host.CROSS_ORIGIN, test.returned_csp_1);
if (test.returned_csp_2)
url.searchParams.append("policy2", test.returned_csp_2);
assert_iframe_with_csp(t, url, test.required_csp, test.expected, test.name, null);
}, test.name);
});
</script>
</body>
</html>
