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// This is the main driver of the canvas tainting tests.
const NOT_TAINTED = 'NOT_TAINTED';
const TAINTED = 'TAINTED';
const LOAD_ERROR = 'LOAD_ERROR';
let frame;
// Creates a single promise_test.
function canvas_taint_test(url, cross_origin, expected_result) {
promise_test(t => {
return frame.contentWindow.create_test_case_promise(url, cross_origin)
.then(result => {
assert_equals(result, expected_result);
});
}, 'url "' + url + '" with crossOrigin "' + cross_origin + '" should be ' +
expected_result);
}
// Runs all the tests. The given |params| has these properties:
// * |resource_path|: the relative path to the (image/video) resource to test.
// * |cache|: when true, the service worker bounces responses into
// Cache Storage and back out before responding with them.
function do_canvas_tainting_tests(params) {
const host_info = get_host_info();
let resource_path = params.resource_path;
if (params.cache)
resource_path += "&cache=true";
const resource_url = host_info['HTTPS_ORIGIN'] + resource_path;
const remote_resource_url = host_info['HTTPS_REMOTE_ORIGIN'] + resource_path;
// Set up the service worker and the frame.
promise_test(function(t) {
const SCOPE = 'resources/fetch-canvas-tainting-iframe.html';
const SCRIPT = 'resources/fetch-rewrite-worker.js';
const host_info = get_host_info();
// login_https() is needed because some test cases use credentials.
return login_https(t)
.then(function() {
return service_worker_unregister_and_register(t, SCRIPT, SCOPE);
})
.then(function(registration) {
promise_test(() => {
if (frame)
frame.remove();
return registration.unregister();
}, 'restore global state');
return wait_for_state(t, registration.installing, 'activated');
})
.then(function() { return with_iframe(SCOPE); })
.then(f => {
frame = f;
});
}, 'initialize global state');
// Reject tests. Add '&reject' so the service worker responds with a rejected promise.
// A load error is expected.
canvas_taint_test(resource_url + '&reject', '', LOAD_ERROR);
canvas_taint_test(resource_url + '&reject', 'anonymous', LOAD_ERROR);
canvas_taint_test(resource_url + '&reject', 'use-credentials', LOAD_ERROR);
// Fallback tests. Add '&ignore' so the service worker does not respond to the fetch
// request, and we fall back to network.
canvas_taint_test(resource_url + '&ignore', '', NOT_TAINTED);
canvas_taint_test(remote_resource_url + '&ignore', '', TAINTED);
canvas_taint_test(remote_resource_url + '&ignore', 'anonymous', LOAD_ERROR);
canvas_taint_test(
remote_resource_url + '&ACAOrigin=' + host_info['HTTPS_ORIGIN'] +
'&ignore',
'anonymous',
NOT_TAINTED);
canvas_taint_test(remote_resource_url + '&ignore', 'use-credentials', LOAD_ERROR);
canvas_taint_test(
remote_resource_url + '&ACAOrigin=' + host_info['HTTPS_ORIGIN'] +
'&ignore',
'use-credentials',
LOAD_ERROR);
canvas_taint_test(
remote_resource_url + '&ACAOrigin=' + host_info['HTTPS_ORIGIN'] +
'&ACACredentials=true&ignore',
'use-credentials',
NOT_TAINTED);
// Credential tests (with fallback). Add '&Auth' so the server requires authentication.
// Furthermore, add '&ignore' so the service worker falls back to network.
canvas_taint_test(resource_url + '&Auth&ignore', '', NOT_TAINTED);
canvas_taint_test(remote_resource_url + '&Auth&ignore', '', TAINTED);
canvas_taint_test(
remote_resource_url + '&Auth&ignore', 'anonymous', LOAD_ERROR);
canvas_taint_test(
remote_resource_url + '&Auth&ignore',
'use-credentials',
LOAD_ERROR);
canvas_taint_test(
remote_resource_url + '&Auth&ACAOrigin=' + host_info['HTTPS_ORIGIN'] +
'&ignore',
'use-credentials',
LOAD_ERROR);
canvas_taint_test(
remote_resource_url + '&Auth&ACAOrigin=' + host_info['HTTPS_ORIGIN'] +
'&ACACredentials=true&ignore',
'use-credentials',
NOT_TAINTED);
// In the following tests, the service worker provides a response.
// Add '&url' so the service worker responds with fetch(url).
// Add '&mode' to configure the fetch request options.
// Basic response tests. Set &url to the original url.
canvas_taint_test(
resource_url + '&mode=same-origin&url=' + encodeURIComponent(resource_url),
'',
NOT_TAINTED);
canvas_taint_test(
resource_url + '&mode=same-origin&url=' + encodeURIComponent(resource_url),
'anonymous',
NOT_TAINTED);
canvas_taint_test(
resource_url + '&mode=same-origin&url=' + encodeURIComponent(resource_url),
'use-credentials',
NOT_TAINTED);
canvas_taint_test(
remote_resource_url + '&mode=same-origin&url=' +
encodeURIComponent(resource_url),
'',
NOT_TAINTED);
canvas_taint_test(
remote_resource_url + '&mode=same-origin&url=' +
encodeURIComponent(resource_url),
'anonymous',
NOT_TAINTED);
canvas_taint_test(
remote_resource_url + '&mode=same-origin&url=' +
encodeURIComponent(resource_url),
'use-credentials',
NOT_TAINTED);
// Opaque response tests. Set &url to the cross-origin URL, and &mode to
// 'no-cors' so we expect an opaque response.
canvas_taint_test(
resource_url +
'&mode=no-cors&url=' + encodeURIComponent(remote_resource_url),
'',
TAINTED);
canvas_taint_test(
resource_url +
'&mode=no-cors&url=' + encodeURIComponent(remote_resource_url),
'anonymous',
LOAD_ERROR);
canvas_taint_test(
resource_url +
'&mode=no-cors&url=' + encodeURIComponent(remote_resource_url),
'use-credentials',
LOAD_ERROR);
canvas_taint_test(
remote_resource_url +
'&mode=no-cors&url=' + encodeURIComponent(remote_resource_url),
'',
TAINTED);
canvas_taint_test(
remote_resource_url +
'&mode=no-cors&url=' + encodeURIComponent(remote_resource_url),
'anonymous',
LOAD_ERROR);
canvas_taint_test(
remote_resource_url +
'&mode=no-cors&url=' + encodeURIComponent(remote_resource_url),
'use-credentials',
LOAD_ERROR);
// CORS response tests. Set &url to the cross-origin URL, and &mode
// to 'cors' to attempt a CORS request.
canvas_taint_test(
resource_url + '&mode=cors&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'',
LOAD_ERROR); // We expect LOAD_ERROR since the server doesn't respond
// with an Access-Control-Allow-Credentials header.
canvas_taint_test(
resource_url + '&mode=cors&credentials=same-origin&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'',
NOT_TAINTED);
canvas_taint_test(
resource_url + '&mode=cors&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'anonymous',
NOT_TAINTED);
canvas_taint_test(
resource_url + '&mode=cors&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'use-credentials',
LOAD_ERROR); // We expect LOAD_ERROR since the server doesn't respond
// with an Access-Control-Allow-Credentials header.
canvas_taint_test(
resource_url + '&mode=cors&url=' +
encodeURIComponent(
remote_resource_url +
'&ACACredentials=true&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'use-credentials',
NOT_TAINTED);
canvas_taint_test(
remote_resource_url + '&mode=cors&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'',
LOAD_ERROR); // We expect LOAD_ERROR since the server doesn't respond
// with an Access-Control-Allow-Credentials header.
canvas_taint_test(
remote_resource_url + '&mode=cors&credentials=same-origin&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'',
NOT_TAINTED);
canvas_taint_test(
remote_resource_url + '&mode=cors&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'anonymous',
NOT_TAINTED);
canvas_taint_test(
remote_resource_url + '&mode=cors&url=' +
encodeURIComponent(remote_resource_url +
'&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'use-credentials',
LOAD_ERROR); // We expect LOAD_ERROR since the server doesn't respond
// with an Access-Control-Allow-Credentials header.
canvas_taint_test(
remote_resource_url + '&mode=cors&url=' +
encodeURIComponent(
remote_resource_url +
'&ACACredentials=true&ACAOrigin=' + host_info['HTTPS_ORIGIN']),
'use-credentials',
NOT_TAINTED);
}