<!DOCTYPE html>
<meta charset=utf-8>
<title>Subresource Integrity</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/sriharness.js"></script>
<script src="/common/utils.js"></script>
<script src="/subresource-integrity/sri-test-helpers.sub.js"></script>
<script src="./resources/preload_helper.js"></script>


<div id="log"></div>

<div id="container"></div>
<script>
  // This is a list of information for each preload destination. The information
  // is used in a loop iterating over the below tests, so that each test is run
  // for each destination.
  const preload_destination_info = [
    {
      destination: 'script', ext: '.js', supports_sri: true,
      sha256: 'sha256-Bu681KMnQ15RYHFvsYdWumweeFAw0hJDTFt9seErghA=',
      sha384: 'sha384-cINXh+nCzEHPWzXS7eoT+vYMBpyqczOybRLNU3XAButFWCRhHT5hLByIbPRqIm2f',
      sha512: 'sha512-KZdenhzBd7X7Q/vmaOSyvFz1CGdoVt26xzCZjlkU9lfBEK+V/ougGys7iYDi0+tOHIQSQa87bIqx95R7GU7I9Q=='
    },
    {
      destination: 'style', ext: '.css', supports_sri: true,
      sha256: 'sha256-CzHgdJ7wOccM8L89n4bhcJMz3F+SPLT7YZk7gyCWUV4=',
      sha384: 'sha384-wDAWxH4tOWBwAwHfBn9B7XuNmFxHTMeigAMwn0iVQ0zq3FtmYMLxihcGnU64CwcX',
      sha512: 'sha512-9wXDjd6Wq3H6nPAhI9zOvG7mJkUr03MTxaO+8ztTKnfJif42laL93Be/IF6YYZHHF4esitVYxiwpY2HSZX4l6w=='
    },
    {
      destination: 'image', ext: '.png', supports_sri: false,
      sha256: 'sha256-h7rQ5CQooD7qmTmrNxykCgjz3lDM1CBl2hkY1CTpB2I=',
      sha384: 'sha384-DqrhF5pyW9u4FJsleRwjTAwKDSspQbxk9oux9BtcaANyji0kzpb7b4Cw3TM4MGNk',
      sha512: 'sha512-wyY+ChJ1B5ovayDkbBeEv7nuHJ0uws14KoLyFSLKngFzHzm6VaTNA/ndx/Lnt/vPx6BN1cJB7+JNa4aAUGOlgg=='
    },
    // TODO(domfarolino): Add more destinations.
  ];

  for (const info of preload_destination_info) {
    const {destination, ext, supports_sri, sha256, sha384, sha512} = info;

    // Preload + Subresource Integrity tests. These tests work by passing some
    // destination-specific information (defined in |preload_destination_info|)
    // to the below tests, which do the following:
    // Create a <link rel="preload"> for the given destination, with the
    // specified `integrity`. After this has either loaded or failed to load,
    // the subresource element corresponding to |destination| will be created,
    // attempting to re-use the preloaded resource. `integrity` may be specified
    // on the subresource elements that support SRI as well. The subresource
    // will either load or fail to load, and the result will be compared with an
    // expectation passed to the test.
    SRIPreloadTest(
        true,                                                   /* preload_sri_success */
        true,                                                   /* subresource_sri_success */
        `Same-origin ${destination} with correct sha256 hash.`, /* name */
        1,                                                      /* number_of_requests */
        destination,                                            /* destination */
        same_origin_prefix + destination + ext + `?${token()}`, /* resource_url (for preload + subresource) */
        {integrity: sha256},                                    /* link_attrs */
        {}                                                      /* subresource_attrs */
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with correct sha384 hash.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha384},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with correct sha512 hash.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha512},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with empty integrity.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {},
        {}
    )

    SRIPreloadTest(
        false,
        false,
        `Same-origin ${destination} with incorrect hash.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: "sha256-deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdead"},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with multiple sha256 hashes, including correct.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: `${sha256} sha256-deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdead`},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with multiple sha256 hashes, including unknown algorithm.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: `${sha256} foo666-deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdead`},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with sha256 mismatch, sha512 match`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: `${sha512} sha256-deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdead`},
        {}
    )

    SRIPreloadTest(
        false,
        false,
        `Same-origin ${destination} with sha256 match, sha512 mismatch`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: `sha512-deadbeefspbnUnwooKGNNCb39nvg+EW0O9hDScTXeo/9pVZztLSUYU3LNV6H0lZapo8bCJUpyPPLAzE9fDzpxg== ${sha256}`},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `<crossorigin='anonymous'> ${destination} with correct hash, ACAO: *`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + anonymous,
        {integrity: sha256, crossOrigin: 'anonymous'},
        {crossOrigin: "anonymous"}
    )

    SRIPreloadTest(
        false,
        false,
        `<crossorigin='anonymous'> ${destination} with incorrect hash, ACAO: *`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + anonymous,
        {integrity: "sha256-sha256-deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdead", crossOrigin: "anonymous"},
        {crossOrigin: "anonymous"}
    )

    SRIPreloadTest(
        true,
        true,
        `<crossorigin='use-credentials'> ${destination} with correct hash, CORS-eligible`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + use_credentials,
        {integrity: sha256, crossOrigin: "use-credentials"},
        {crossOrigin: "use-credentials"}
    )

    SRIPreloadTest(
        false,
        false,
        `<crossorigin='use-credentials'> ${destination} with incorrect hash CORS-eligible`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + use_credentials,
        {integrity: "sha256-deadbeef2S+pTRZgiw3DWrhC6JLDlt2zRyGpwH7unU8=", crossOrigin: "use-credentials"},
        {crossOrigin: "use-credentials"}
    )

    SRIPreloadTest(
        false,
        false,
        `<crossorigin='anonymous'> ${destination} with CORS-ineligible resource`,
        1,
        destination,
        // not piping ACAO header makes this CORS-ineligible
        xorigin_prefix + destination + ext + `?${token()}`,
        {integrity: sha256, crossOrigin: "anonymous"},
        {crossOrigin: "anonymous"}
    )

    SRIPreloadTest(
        false,
        false,
        `Cross-origin ${destination}, not CORS request, with correct hash`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + anonymous,
        {integrity: sha256},
        {}
    )

    SRIPreloadTest(
        false,
        false,
        `Cross-origin ${destination}, not CORS request, with hash mismatch`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + anonymous,
        {integrity: "sha256-deadbeef01Y0yKSx3/UoIKtIY2UQ9+H8WGyyMuOWOC0="},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Cross-origin ${destination}, empty integrity`,
        1,
        destination,
        xorigin_prefix + destination + ext + `?${token()}` + anonymous,
        {},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with correct hash, options.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: `${sha256}?foo=bar?spam=eggs`},
        {}
    )

    SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with unknown algorithm only.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: "foo666-8aBiAJl3ukQwSJ6eTs5wl6hGjnOtyXjcTRdAf89uIfY="},
        {}
    )

    // The below tests are specific to subresource destinations that support
    // SRI. See |supports_sri|.
    if (supports_sri) {

      SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with matching digest re-uses preload with matching digest.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha256},
        {integrity: sha256}
      )

      SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with matching digest re-uses preload with matching digest and options.`,
        1,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: `${sha256}?dummy-option=value`},
        {integrity: sha256}
      )

      SRIPreloadTest(
        true,
        false,
        `Same-origin ${destination} with non-matching digest does not re-use preload with matching digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha256},
        {integrity: "sha256-deadbeefQ15RYHFvsYdWumweeFAw0hJDTFt9seErghA="}
      )

      SRIPreloadTest(
        false,
        true,
        `Same-origin ${destination} with matching digest does not re-use preload with non-matching digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: "sha256-deadbeefQ15RYHFvsYdWumweeFAw0hJDTFt9seErghA="},
        {integrity: sha256}
      )

      SRIPreloadTest(
        false,
        false,
        `Same-origin ${destination} with non-matching digest does not re-use preload with non-matching digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: "sha256-deadbeefQ15RYHFvsYdWumweeFAw0hJDTFt9seErghA="},
        {integrity: "sha256-deaddeadbeefYHFvsYdWumweeFAw0hJDTFt9seErghA="}
      )

      SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with matching digest does not reuse preload without digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {},
        {integrity: sha256}
      )

      SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with matching digest does not reuse preload with matching but stronger digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha384},
        {integrity: sha256},
      )

      SRIPreloadTest(
        true,
        false,
        `Same-origin ${destination} with wrong digest does not reuse preload with correct and stronger digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha384},
        {integrity: "sha256-deadbeefQ15RYHFvsYdWumweeFAw0hJDTFt9seErghA="}
      )

      SRIPreloadTest(
        true,
        true,
        `Same-origin ${destination} with matching digest does not reuse preload with matching but weaker digest.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {integrity: sha256},
        {integrity: sha384},
      )

      SRIPreloadTest(
        true,
        false,
        `Same-origin ${destination} with non-matching digest reuses preload with no digest but fails.`,
        2,
        destination,
        same_origin_prefix + destination + ext + `?${token()}`,
        {},
        {integrity: "sha256-sha256-deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdead"},
      )

    } // if.

  } // for-of.
</script>
