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cef/tests/ceftests/cors_unittest.cc

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// Copyright (c) 2020 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include <algorithm>
#include <set>
#include <vector>
#include "include/base/cef_bind.h"
#include "include/cef_callback.h"
#include "include/cef_origin_whitelist.h"
#include "include/cef_scheme.h"
#include "include/wrapper/cef_closure_task.h"
#include "tests/ceftests/routing_test_handler.h"
#include "tests/ceftests/test_request.h"
#include "tests/ceftests/test_server.h"
#include "tests/ceftests/test_util.h"
#include "tests/shared/browser/client_app_browser.h"
namespace {
// Browser-side app delegate.
class CorsBrowserTest : public client::ClientAppBrowser::Delegate {
public:
CorsBrowserTest() {}
void OnContextInitialized(CefRefPtr<client::ClientAppBrowser> app) override {
if (IsChromeRuntimeEnabled()) {
// Disable InsecureFormNavigationThrottle which blocks 307 redirect of
// POST requests from HTTPS to custom non-standard scheme causing the
// CorsTest.RedirectPost307HttpSchemeToCustomNonStandardScheme test to
// fail.
CefRefPtr<CefValue> value = CefValue::Create();
value->SetBool(false);
CefString error;
bool result = CefRequestContext::GetGlobalContext()->SetPreference(
"profile.mixed_forms_warnings", value, error);
CHECK(result) << error.ToString();
}
}
private:
IMPLEMENT_REFCOUNTING(CorsBrowserTest);
};
const char kMimeTypeHtml[] = "text/html";
const char kMimeTypeText[] = "text/plain";
const char kDefaultHtml[] = "<html><body>TEST</body></html>";
const char kDefaultText[] = "TEST";
const char kDefaultCookie[] = "testCookie=testVal";
const char kSuccessMsg[] = "CorsTestHandler.Success";
const char kFailureMsg[] = "CorsTestHandler.Failure";
// Source that will handle the request.
enum class HandlerType {
SERVER,
HTTP_SCHEME,
CUSTOM_STANDARD_SCHEME,
CUSTOM_NONSTANDARD_SCHEME,
CUSTOM_UNREGISTERED_SCHEME,
};
std::string GetOrigin(HandlerType handler) {
switch (handler) {
case HandlerType::SERVER:
return test_server::kServerOrigin;
case HandlerType::HTTP_SCHEME:
// Use HTTPS because requests from HTTP to the loopback address will be
// blocked by https://chromestatus.com/feature/5436853517811712.
return "https://corstest.com";
case HandlerType::CUSTOM_STANDARD_SCHEME:
// Standard scheme that's registered as CORS and fetch enabled.
// Registered in scheme_handler_unittest.cc.
return "customstdfetch://corstest";
case HandlerType::CUSTOM_NONSTANDARD_SCHEME:
// Non-standard schemes are not CORS or fetch enabled.
// Registered in scheme_handler_unittest.cc.
return "customnonstd:corstest";
case HandlerType::CUSTOM_UNREGISTERED_SCHEME:
// A scheme that isn't registered anywhere is treated as a non-standard
// scheme.
return "customstdunregistered://corstest";
}
NOTREACHED();
return std::string();
}
bool IsNonStandardType(HandlerType handler) {
return handler == HandlerType::CUSTOM_NONSTANDARD_SCHEME ||
handler == HandlerType::CUSTOM_UNREGISTERED_SCHEME;
}
bool IsStandardType(HandlerType handler) {
return !IsNonStandardType(handler);
}
std::string GetPathURL(HandlerType handler, const std::string& path) {
return GetOrigin(handler) + path;
}
struct Resource {
// Uniquely identifies the resource.
HandlerType handler = HandlerType::SERVER;
std::string path;
// If non-empty the method value must match.
std::string method;
// Response information that will be returned.
CefRefPtr<CefResponse> response;
std::string response_data;
// Expected error code in OnLoadError.
cef_errorcode_t expected_error_code = ERR_NONE;
// Expected number of responses.
int expected_response_ct = 1;
// Expected number of OnQuery calls.
int expected_success_query_ct = 0;
int expected_failure_query_ct = 0;
// Actual number of responses.
int response_ct = 0;
// Actual number of OnQuery calls.
int success_query_ct = 0;
int failure_query_ct = 0;
Resource() {}
Resource(HandlerType request_handler,
const std::string& request_path,
const std::string& mime_type = kMimeTypeHtml,
const std::string& data = kDefaultHtml,
int status = 200) {
Init(request_handler, request_path, mime_type, data, status);
}
// Perform basic initialization.
void Init(HandlerType request_handler,
const std::string& request_path,
const std::string& mime_type = kMimeTypeHtml,
const std::string& data = kDefaultHtml,
int status = 200) {
handler = request_handler;
path = request_path;
response_data = data;
response = CefResponse::Create();
response->SetMimeType(mime_type);
response->SetStatus(status);
}
// Validate expected initial state.
void Validate() const {
DCHECK(!path.empty());
DCHECK(response);
DCHECK(!response->GetMimeType().empty());
DCHECK_EQ(0, response_ct);
DCHECK_GE(expected_response_ct, 0);
}
std::string GetPathURL() const { return ::GetPathURL(handler, path); }
// Returns true if all expectations have been met.
bool IsDone() const {
return response_ct == expected_response_ct &&
success_query_ct == expected_success_query_ct &&
failure_query_ct == expected_failure_query_ct;
}
void AssertDone() const {
EXPECT_EQ(expected_response_ct, response_ct) << GetPathURL();
EXPECT_EQ(expected_success_query_ct, success_query_ct) << GetPathURL();
EXPECT_EQ(expected_failure_query_ct, failure_query_ct) << GetPathURL();
}
// Optionally override to verify request contents.
virtual bool VerifyRequest(CefRefPtr<CefRequest> request) const {
return true;
}
};
struct TestSetup {
// Available resources.
typedef std::vector<Resource*> ResourceList;
ResourceList resources;
// Used for testing received console messages.
std::vector<std::string> console_messages;
// If true cookies will be cleared after every test run.
bool clear_cookies = false;
void AddResource(Resource* resource) {
DCHECK(resource);
resource->Validate();
resources.push_back(resource);
}
void AddConsoleMessage(const std::string& message) {
DCHECK(!message.empty());
console_messages.push_back(message);
}
Resource* GetResource(const std::string& url,
const std::string& method = std::string()) const {
if (resources.empty())
return nullptr;
std::set<std::string> matching_methods;
if (method.empty()) {
// Match standard HTTP methods.
matching_methods.insert("GET");
matching_methods.insert("POST");
} else {
matching_methods.insert(method);
}
const std::string& path_url = test_request::GetPathURL(url);
ResourceList::const_iterator it = resources.begin();
for (; it != resources.end(); ++it) {
Resource* resource = *it;
if (resource->GetPathURL() == path_url &&
(resource->method.empty() ||
matching_methods.find(resource->method) != matching_methods.end())) {
return resource;
}
}
return nullptr;
}
Resource* GetResource(CefRefPtr<CefRequest> request) const {
return GetResource(request->GetURL(), request->GetMethod());
}
// Validate expected initial state.
void Validate() const { DCHECK(!resources.empty()); }
std::string GetMainURL() const { return resources.front()->GetPathURL(); }
// Returns true if the server will be used.
bool NeedsServer() const {
ResourceList::const_iterator it = resources.begin();
for (; it != resources.end(); ++it) {
Resource* resource = *it;
if (resource->handler == HandlerType::SERVER)
return true;
}
return false;
}
// Returns true if all expectations have been met.
bool IsDone() const {
ResourceList::const_iterator it = resources.begin();
for (; it != resources.end(); ++it) {
Resource* resource = *it;
if (!resource->IsDone())
return false;
}
return true;
}
void AssertDone() const {
ResourceList::const_iterator it = resources.begin();
for (; it != resources.end(); ++it) {
(*it)->AssertDone();
}
}
// Optionally override to verify cleared cookie contents.
virtual bool VerifyClearedCookies(
const test_request::CookieVector& cookies) const {
return true;
}
};
class TestServerObserver : public test_server::ObserverHelper {
public:
typedef base::Callback<bool()> CheckDoneCallback;
TestServerObserver(TestSetup* setup,
const base::Closure& ready_callback,
const base::Closure& done_callback)
: setup_(setup),
ready_callback_(ready_callback),
done_callback_(done_callback),
weak_ptr_factory_(this) {
DCHECK(setup);
Initialize();
}
~TestServerObserver() override { done_callback_.Run(); }
void OnInitialized(const std::string& server_origin) override {
CEF_REQUIRE_UI_THREAD();
ready_callback_.Run();
}
bool OnHttpRequest(CefRefPtr<CefServer> server,
int connection_id,
const CefString& client_address,
CefRefPtr<CefRequest> request) override {
CEF_REQUIRE_UI_THREAD();
Resource* resource = setup_->GetResource(request);
if (!resource) {
// Not a request we handle.
return false;
}
resource->response_ct++;
EXPECT_TRUE(resource->VerifyRequest(request))
<< request->GetURL().ToString();
test_server::SendResponse(server, connection_id, resource->response,
resource->response_data);
// Stop propagating the callback.
return true;
}
void OnShutdown() override {
CEF_REQUIRE_UI_THREAD();
delete this;
}
private:
TestSetup* const setup_;
const base::Closure ready_callback_;
const base::Closure done_callback_;
base::WeakPtrFactory<TestServerObserver> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(TestServerObserver);
};
class CorsTestHandler : public RoutingTestHandler {
public:
explicit CorsTestHandler(TestSetup* setup) : setup_(setup) {
setup_->Validate();
}
void RunTest() override {
StartServer(base::Bind(&CorsTestHandler::TriggerCreateBrowser, this));
// Time out the test after a reasonable period of time.
SetTestTimeout();
}
// Necessary to make the method public in order to destroy the test from
// ClientSchemeHandlerType::ProcessRequest().
void DestroyTest() override {
EXPECT_TRUE(shutting_down_);
if (setup_->NeedsServer()) {
EXPECT_TRUE(got_stopped_server_);
} else {
EXPECT_FALSE(got_stopped_server_);
}
if (setup_->clear_cookies) {
EXPECT_TRUE(got_cleared_cookies_);
} else {
EXPECT_FALSE(got_cleared_cookies_);
}
setup_->AssertDone();
EXPECT_TRUE(setup_->console_messages.empty())
<< "Did not receive expected console message: "
<< setup_->console_messages.front();
RoutingTestHandler::DestroyTest();
}
CefRefPtr<CefResourceHandler> GetResourceHandler(
CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
CefRefPtr<CefRequest> request) override {
CEF_REQUIRE_IO_THREAD();
const std::string& url = request->GetURL();
const std::string& method = request->GetMethod();
if (method == "OPTIONS") {
// We should never see the CORS preflight request.
ADD_FAILURE() << "Unexpected CORS preflight for " << url;
}
Resource* resource = setup_->GetResource(request);
if (resource && resource->handler != HandlerType::SERVER) {
resource->response_ct++;
EXPECT_TRUE(resource->VerifyRequest(request)) << url;
return test_request::CreateResourceHandler(resource->response,
resource->response_data);
}
return RoutingTestHandler::GetResourceHandler(browser, frame, request);
}
void OnLoadEnd(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
int httpStatusCode) override {
const std::string& url = frame->GetURL();
Resource* resource = GetResource(url);
if (!resource)
return;
const int expected_status = resource->response->GetStatus();
if (url == main_url_ || expected_status != 200) {
// Test that the status code is correct.
EXPECT_EQ(expected_status, httpStatusCode) << url;
}
TriggerDestroyTestIfDone();
}
void OnLoadError(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
ErrorCode errorCode,
const CefString& errorText,
const CefString& failedUrl) override {
Resource* resource = GetResource(failedUrl);
if (!resource)
return;
const cef_errorcode_t expected_error = resource->response->GetError();
// Tests sometimes also fail with ERR_ABORTED.
if (!(expected_error == ERR_NONE && errorCode == ERR_ABORTED)) {
EXPECT_EQ(expected_error, errorCode) << failedUrl.ToString();
}
TriggerDestroyTestIfDone();
}
bool OnQuery(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
int64 query_id,
const CefString& request,
bool persistent,
CefRefPtr<Callback> callback) override {
Resource* resource = GetResource(frame->GetURL());
if (!resource)
return false;
if (request.ToString() == kSuccessMsg ||
request.ToString() == kFailureMsg) {
callback->Success("");
if (request.ToString() == kSuccessMsg)
resource->success_query_ct++;
else
resource->failure_query_ct++;
TriggerDestroyTestIfDone();
return true;
}
return false;
}
bool OnConsoleMessage(CefRefPtr<CefBrowser> browser,
cef_log_severity_t level,
const CefString& message,
const CefString& source,
int line) override {
bool expected = false;
if (!setup_->console_messages.empty()) {
std::vector<std::string>::iterator it = setup_->console_messages.begin();
for (; it != setup_->console_messages.end(); ++it) {
const std::string& possible = *it;
const std::string& actual = message.ToString();
if (actual.find(possible) == 0U) {
expected = true;
setup_->console_messages.erase(it);
break;
}
}
}
EXPECT_TRUE(expected) << "Unexpected console message: "
<< message.ToString();
return false;
}
protected:
void TriggerCreateBrowser() {
main_url_ = setup_->GetMainURL();
CreateBrowser(main_url_);
}
void TriggerDestroyTestIfDone() {
CefPostTask(TID_UI, base::Bind(&CorsTestHandler::DestroyTestIfDone, this));
}
void DestroyTestIfDone() {
CEF_REQUIRE_UI_THREAD();
if (shutting_down_)
return;
if (setup_->IsDone()) {
shutting_down_ = true;
StopServer();
}
}
void StartServer(const base::Closure& next_step) {
if (!CefCurrentlyOn(TID_UI)) {
CefPostTask(TID_UI,
base::Bind(&CorsTestHandler::StartServer, this, next_step));
return;
}
if (!setup_->NeedsServer()) {
next_step.Run();
return;
}
// Will delete itself after the server stops.
server_ = new TestServerObserver(
setup_, next_step, base::Bind(&CorsTestHandler::StoppedServer, this));
}
void StopServer() {
CEF_REQUIRE_UI_THREAD();
if (!server_) {
DCHECK(!setup_->NeedsServer());
AfterStoppedServer();
return;
}
// Results in a call to StoppedServer().
server_->Shutdown();
}
void StoppedServer() {
CEF_REQUIRE_UI_THREAD();
got_stopped_server_.yes();
server_ = nullptr;
AfterStoppedServer();
}
void AfterStoppedServer() {
CEF_REQUIRE_UI_THREAD();
if (setup_->clear_cookies) {
ClearCookies();
} else {
DestroyTest();
}
}
void ClearCookies() {
CEF_REQUIRE_UI_THREAD();
DCHECK(setup_->clear_cookies);
test_request::GetAllCookies(
CefCookieManager::GetGlobalManager(nullptr), /*delete_cookies=*/true,
base::Bind(&CorsTestHandler::ClearedCookies, this));
}
void ClearedCookies(const test_request::CookieVector& cookies) {
CEF_REQUIRE_UI_THREAD();
got_cleared_cookies_.yes();
EXPECT_TRUE(setup_->VerifyClearedCookies(cookies));
DestroyTest();
}
Resource* GetResource(const std::string& url) const {
Resource* resource = setup_->GetResource(url);
EXPECT_TRUE(resource) << url;
return resource;
}
TestSetup* setup_;
std::string main_url_;
TestServerObserver* server_ = nullptr;
bool shutting_down_ = false;
TrackCallback got_stopped_server_;
TrackCallback got_cleared_cookies_;
IMPLEMENT_REFCOUNTING(CorsTestHandler);
DISALLOW_COPY_AND_ASSIGN(CorsTestHandler);
};
// JS that results in a call to CorsTestHandler::OnQuery.
std::string GetMsgJS(const std::string& msg) {
return "window.testQuery({request:'" + msg + "'});";
}
std::string GetSuccessMsgJS() {
return GetMsgJS(kSuccessMsg);
}
std::string GetFailureMsgJS() {
return GetMsgJS(kFailureMsg);
}
std::string GetDefaultSuccessMsgHtml() {
return "<html><body>TEST<script>" + GetSuccessMsgJS() +
"</script></body></html>";
}
} // namespace
// Verify the test harness for server requests.
TEST(CorsTest, BasicServer) {
TestSetup setup;
Resource resource(HandlerType::SERVER, "/CorsTest.BasicServer");
setup.AddResource(&resource);
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup);
handler->ExecuteTest();
ReleaseAndWaitForDestructor(handler);
}
// Like above, but also send a query JS message.
TEST(CorsTest, BasicServerWithQuery) {
TestSetup setup;
Resource resource(HandlerType::SERVER, "/CorsTest.BasicServerWithQuery",
kMimeTypeHtml, GetDefaultSuccessMsgHtml());
resource.expected_success_query_ct = 1;
setup.AddResource(&resource);
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup);
handler->ExecuteTest();
ReleaseAndWaitForDestructor(handler);
}
// Verify the test harness for http scheme requests.
TEST(CorsTest, BasicHttpScheme) {
TestSetup setup;
Resource resource(HandlerType::HTTP_SCHEME, "/CorsTest.BasicHttpScheme");
setup.AddResource(&resource);
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup);
handler->ExecuteTest();
ReleaseAndWaitForDestructor(handler);
}
// Like above, but also send a query JS message.
TEST(CorsTest, BasicHttpSchemeWithQuery) {
TestSetup setup;
Resource resource(HandlerType::HTTP_SCHEME,
"/CorsTest.BasicHttpSchemeWithQuery", kMimeTypeHtml,
GetDefaultSuccessMsgHtml());
resource.expected_success_query_ct = 1;
setup.AddResource(&resource);
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup);
handler->ExecuteTest();
ReleaseAndWaitForDestructor(handler);
}
// Verify the test harness for custom standard scheme requests.
TEST(CorsTest, BasicCustomStandardScheme) {
TestSetup setup;
Resource resource(HandlerType::CUSTOM_STANDARD_SCHEME,
"/CorsTest.BasicCustomStandardScheme");
setup.AddResource(&resource);
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup);
handler->ExecuteTest();
ReleaseAndWaitForDestructor(handler);
}
// Like above, but also send a query JS message.
TEST(CorsTest, BasicCustomStandardSchemeWithQuery) {
TestSetup setup;
Resource resource(HandlerType::CUSTOM_STANDARD_SCHEME,
"/CorsTest.BasicCustomStandardSchemeWithQuery",
kMimeTypeHtml, GetDefaultSuccessMsgHtml());
resource.expected_success_query_ct = 1;
setup.AddResource(&resource);
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup);
handler->ExecuteTest();
ReleaseAndWaitForDestructor(handler);
}
namespace {
struct CookieTestSetup : TestSetup {
CookieTestSetup() {}
bool expect_cookie = false;
bool VerifyClearedCookies(
const test_request::CookieVector& cookies) const override {
if (!expect_cookie) {
EXPECT_TRUE(cookies.empty());
return cookies.empty();
}
EXPECT_EQ(1U, cookies.size());
const std::string& cookie = CefString(&cookies[0].name).ToString() + "=" +
CefString(&cookies[0].value).ToString();
EXPECT_STREQ(kDefaultCookie, cookie.c_str());
return cookie == kDefaultCookie;
}
};
struct CookieResource : Resource {
CookieResource() {}
bool expect_cookie = false;
void InitSetCookie() {
response->SetHeaderByName("Set-Cookie", kDefaultCookie,
/*override=*/true);
}
bool VerifyRequest(CefRefPtr<CefRequest> request) const override {
const std::string& cookie = request->GetHeaderByName("Cookie");
const std::string& expected_cookie =
expect_cookie ? kDefaultCookie : std::string();
EXPECT_STREQ(expected_cookie.c_str(), cookie.c_str()) << GetPathURL();
return expected_cookie == cookie;
}
};
void SetupCookieExpectations(CookieTestSetup* setup,
CookieResource* main_resource,
CookieResource* sub_resource) {
// All schemes except custom non-standard support cookies.
const bool supports_cookies = IsStandardType(main_resource->handler);
// The main resource may set the cookie (if cookies are supported), but should
// not receive one.
main_resource->InitSetCookie();
main_resource->expect_cookie = false;
// A cookie will be set only for schemes that support cookies.
setup->expect_cookie = supports_cookies;
// Always clear cookies so we can verify that one wasn't set unexpectedly.
setup->clear_cookies = true;
// Expect the sub-resource to receive the cookie for same-origin requests
// only.
sub_resource->expect_cookie =
supports_cookies && main_resource->handler == sub_resource->handler;
}
std::string GetIframeMainHtml(const std::string& iframe_url,
const std::string& sandbox_attribs) {
return "<html><body>TEST<iframe src=\"" + iframe_url + "\" sandbox=\"" +
sandbox_attribs + "\"></iframe></body></html>";
}
std::string GetIframeSubHtml() {
// Try to script the parent frame, then send the SuccessMsg.
return "<html><body>TEST<script>try { parent.document.body; } catch "
"(exception) { console.log(exception.toString()); }" +
GetSuccessMsgJS() + "</script></body></html>";
}
bool HasSandboxAttrib(const std::string& sandbox_attribs,
const std::string& attrib) {
return sandbox_attribs.find(attrib) != std::string::npos;
}
void SetupIframeRequest(CookieTestSetup* setup,
const std::string& test_name,
HandlerType main_handler,
CookieResource* main_resource,
HandlerType iframe_handler,
CookieResource* iframe_resource,
const std::string& sandbox_attribs) {
const std::string& base_path = "/" + test_name;
// Expect a single iframe request.
iframe_resource->Init(iframe_handler, base_path + ".iframe.html",
kMimeTypeHtml, GetIframeSubHtml());
// Expect a single main frame request.
const std::string& iframe_url = iframe_resource->GetPathURL();
main_resource->Init(main_handler, base_path, kMimeTypeHtml,
GetIframeMainHtml(iframe_url, sandbox_attribs));
SetupCookieExpectations(setup, main_resource, iframe_resource);
if (HasSandboxAttrib(sandbox_attribs, "allow-scripts")) {
// Expect the iframe to load successfully and send the SuccessMsg.
iframe_resource->expected_success_query_ct = 1;
const bool has_same_origin =
HasSandboxAttrib(sandbox_attribs, "allow-same-origin");
if (!has_same_origin ||
(has_same_origin &&
(IsNonStandardType(main_handler) || main_handler != iframe_handler))) {
// Expect parent frame scripting to fail if:
// - "allow-same-origin" is not specified;
// - the main frame is a non-standard scheme (e.g. CORS disabled);
// - the main frame and iframe origins don't match.
// The reported origin will be "null" if "allow-same-origin" is not
// specified, or if the iframe is hosted on a non-standard scheme.
const std::string& origin =
!has_same_origin || IsNonStandardType(iframe_handler)
? "null"
: GetOrigin(iframe_handler);
setup->AddConsoleMessage("SecurityError: Blocked a frame with origin \"" +
origin +
"\" from accessing a cross-origin frame.");
}
} else {
// Expect JavaScript execution to fail.
setup->AddConsoleMessage("Blocked script execution in '" + iframe_url +
"' because the document's frame is sandboxed and "
"the 'allow-scripts' permission is not set.");
}
setup->AddResource(main_resource);
setup->AddResource(iframe_resource);
}
} // namespace
// Test iframe sandbox attributes with different origin combinations.
#define CORS_TEST_IFRAME(test_name, handler_main, handler_iframe, \
sandbox_attribs) \
TEST(CorsTest, Iframe##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main, resource_iframe; \
SetupIframeRequest(&setup, "CorsTest.Iframe" #test_name, \
HandlerType::handler_main, &resource_main, \
HandlerType::handler_iframe, &resource_iframe, \
sandbox_attribs); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
// Test all origin combinations (same and cross-origin).
#define CORS_TEST_IFRAME_ALL(name, sandbox_attribs) \
CORS_TEST_IFRAME(name##ServerToServer, SERVER, SERVER, sandbox_attribs) \
CORS_TEST_IFRAME(name##ServerToHttpScheme, SERVER, HTTP_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##ServerToCustomStandardScheme, SERVER, \
CUSTOM_STANDARD_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##ServerToCustomNonStandardScheme, SERVER, \
CUSTOM_NONSTANDARD_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##ServerToCustomUnregisteredScheme, SERVER, \
CUSTOM_UNREGISTERED_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##HttpSchemeToServer, HTTP_SCHEME, SERVER, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##HttpSchemeToHttpScheme, HTTP_SCHEME, HTTP_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##HttpSchemeToCustomStandardScheme, HTTP_SCHEME, \
CUSTOM_STANDARD_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##HttpSchemeToCustomNonStandardScheme, HTTP_SCHEME, \
CUSTOM_NONSTANDARD_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##HttpSchemeToCustomUnregisteredScheme, HTTP_SCHEME, \
CUSTOM_UNREGISTERED_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomStandardSchemeToServer, CUSTOM_STANDARD_SCHEME, \
SERVER, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomStandardSchemeToHttpScheme, \
CUSTOM_STANDARD_SCHEME, HTTP_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomStandardSchemeToCustomStandardScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_STANDARD_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomStandardSchemeToCustomNonStandardScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomStandardSchemeToCustomUnregisteredScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomNonStandardSchemeToServer, \
CUSTOM_NONSTANDARD_SCHEME, SERVER, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomNonStandardSchemeToHttpScheme, \
CUSTOM_NONSTANDARD_SCHEME, HTTP_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomNonStandardSchemeToCustomStandardScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_STANDARD_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomNonStandardSchemeToCustomNonStandardScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomNonStandardSchemeToCustomUnregisteredScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomUnregisteredSchemeToServer, \
CUSTOM_UNREGISTERED_SCHEME, SERVER, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomUnregisteredSchemeToHttpScheme, \
CUSTOM_UNREGISTERED_SCHEME, HTTP_SCHEME, sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomUnregisteredSchemeToCustomStandardScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_STANDARD_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomUnregisteredSchemeToCustomNonStandardScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
sandbox_attribs) \
CORS_TEST_IFRAME(name##CustomUnregisteredSchemeToCustomUnregisteredScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
sandbox_attribs)
// Everything is blocked.
CORS_TEST_IFRAME_ALL(None, "")
// JavaScript execution is allowed.
CORS_TEST_IFRAME_ALL(AllowScripts, "allow-scripts")
// JavaScript execution is allowed and scripting the parent is allowed for
// same-origin only.
CORS_TEST_IFRAME_ALL(AllowScriptsAndSameOrigin,
"allow-scripts allow-same-origin")
namespace {
const char kSubRequestMethod[] = "GET";
const char kSubUnsafeHeaderName[] = "x-unsafe-header";
const char kSubUnsafeHeaderValue[] = "not-safe";
struct SubResource : CookieResource {
SubResource() {}
std::string main_origin;
bool supports_cors = false;
bool is_cross_origin = false;
void InitCors(HandlerType main_handler, bool add_header) {
// Must specify the method to differentiate from the preflight request.
method = kSubRequestMethod;
// Origin is always "null" for non-standard schemes.
main_origin =
IsNonStandardType(main_handler) ? "null" : GetOrigin(main_handler);
// True if cross-origin requests are allowed. XHR requests to non-standard
// schemes are not allowed (due to the "null" origin).
supports_cors = IsStandardType(handler);
if (!supports_cors) {
// Don't expect the xhr request.
expected_response_ct = 0;
}
// True if the request is considered cross-origin. Any requests between
// non-standard schemes are considered cross-origin (due to the "null"
// origin).
is_cross_origin =
main_handler != handler ||
(IsNonStandardType(main_handler) && handler == main_handler);
if (is_cross_origin && add_header) {
response->SetHeaderByName("Access-Control-Allow-Origin", main_origin,
false);
}
}
bool VerifyRequest(CefRefPtr<CefRequest> request) const override {
if (!CookieResource::VerifyRequest(request))
return false;
const std::string& request_method = request->GetMethod();
EXPECT_STREQ(method.c_str(), request_method.c_str()) << GetPathURL();
if (request_method != method)
return false;
// Verify that the "Origin" header contains the expected value.
const std::string& origin = request->GetHeaderByName("Origin");
const std::string& expected_origin =
is_cross_origin ? main_origin : std::string();
EXPECT_STREQ(expected_origin.c_str(), origin.c_str()) << GetPathURL();
if (expected_origin != origin)
return false;
// Verify that the "X-Unsafe-Header" header contains the expected value.
const std::string& unsafe_header =
request->GetHeaderByName(kSubUnsafeHeaderName);
EXPECT_STREQ(kSubUnsafeHeaderValue, unsafe_header.c_str()) << GetPathURL();
return unsafe_header == kSubUnsafeHeaderValue;
}
};
// See https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request
// for details of CORS preflight behavior.
struct PreflightResource : Resource {
std::string main_origin;
void InitPreflight(HandlerType main_handler) {
// CORS preflight requests originate from PreflightController in the network
// process, so we only expect them for server requests.
EXPECT_EQ(HandlerType::SERVER, handler);
// Origin is always "null" for non-standard schemes.
main_origin =
IsNonStandardType(main_handler) ? "null" : GetOrigin(main_handler);
method = "OPTIONS";
response->SetHeaderByName("Access-Control-Allow-Methods",
"GET,HEAD,OPTIONS,POST", false);
response->SetHeaderByName("Access-Control-Allow-Headers",
kSubUnsafeHeaderName, false);
response->SetHeaderByName("Access-Control-Allow-Origin", main_origin,
false);
}
bool VerifyRequest(CefRefPtr<CefRequest> request) const override {
const std::string& request_method = request->GetMethod();
EXPECT_STREQ(method.c_str(), request_method.c_str()) << GetPathURL();
if (request_method != method)
return false;
const std::string& origin = request->GetHeaderByName("Origin");
EXPECT_STREQ(main_origin.c_str(), origin.c_str()) << GetPathURL();
if (main_origin != origin)
return false;
const std::string& ac_request_method =
request->GetHeaderByName("Access-Control-Request-Method");
EXPECT_STREQ(kSubRequestMethod, ac_request_method.c_str()) << GetPathURL();
if (ac_request_method != kSubRequestMethod)
return false;
const std::string& ac_request_headers =
request->GetHeaderByName("Access-Control-Request-Headers");
EXPECT_STREQ(kSubUnsafeHeaderName, ac_request_headers.c_str())
<< GetPathURL();
if (ac_request_headers != kSubUnsafeHeaderName)
return false;
return true;
}
};
enum class ExecMode {
XHR,
FETCH,
};
std::string GetXhrExecJS(const std::string& sub_url) {
// Inclusion of an unsafe header triggers CORS preflight for cross-origin
// requests to the server.
return "xhr = new XMLHttpRequest();\n"
"xhr.open(\"GET\", \"" +
sub_url +
"\", true)\n;"
"xhr.setRequestHeader('" +
kSubUnsafeHeaderName + "', '" + kSubUnsafeHeaderValue +
"');\n"
"xhr.onload = function(e) {\n"
" if (xhr.readyState === 4) {\n"
" if (xhr.status === 200) {\n"
" onResult(xhr.responseText);\n"
" } else {\n"
" console.log('XMLHttpRequest failed with status ' + "
"xhr.status);\n"
" onResult('FAILURE');\n"
" }\n"
" }\n"
"};\n"
"xhr.onerror = function(e) {\n"
" onResult('FAILURE');\n"
"};\n"
"xhr.send();\n";
}
std::string GetFetchExecJS(const std::string& sub_url) {
// Inclusion of an unsafe header triggers CORS preflight for cross-origin
// requests to the server.
return std::string() +
"let h = new Headers();\n"
"h.append('" +
kSubUnsafeHeaderName + "', '" + kSubUnsafeHeaderValue +
"');\n"
"fetch('" +
sub_url +
"', {headers: h})\n"
".then(function(response) {\n"
" if (response.status === 200) {\n"
" response.text().then(function(text) {\n"
" onResult(text);\n"
" }).catch(function(e) {\n"
" onResult('FAILURE')\n; "
" })\n;"
" } else {\n"
" onResult('FAILURE');\n"
" }\n"
"}).catch(function(e) {\n"
" onResult('FAILURE');\n"
"});\n";
}
std::string GetExecMainHtml(ExecMode mode, const std::string& sub_url) {
return std::string() +
"<html><head>\n"
"<script language=\"JavaScript\">\n" +
"function onResult(val) {\n"
" if (val === '" +
kDefaultText + "') {" + GetSuccessMsgJS() + "} else {" +
GetFailureMsgJS() +
"}\n}\n"
"function execRequest() {\n" +
(mode == ExecMode::XHR ? GetXhrExecJS(sub_url)
: GetFetchExecJS(sub_url)) +
"}\n</script>\n"
"</head><body onload=\"execRequest();\">"
"Running execRequest..."
"</body></html>";
}
// XHR and fetch requests behave the same, except for console message contents.
// In addition to basic CORS header behaviors and request blocking, this test
// verifies that CORS preflight requests are sent and received when expected.
// Since preflight behavior is implemented in the network process we expect it
// to already have substantial test coverage in Chromium.
void SetupExecRequest(ExecMode mode,
CookieTestSetup* setup,
const std::string& test_name,
HandlerType main_handler,
CookieResource* main_resource,
HandlerType sub_handler,
SubResource* sub_resource,
PreflightResource* preflight_resource,
bool add_header) {
const std::string& base_path = "/" + test_name;
// Expect a single xhr request.
const std::string& sub_path = base_path + ".sub.txt";
sub_resource->Init(sub_handler, sub_path, kMimeTypeText, kDefaultText);
sub_resource->InitCors(main_handler, add_header);
// Expect a single main frame request.
const std::string& sub_url = sub_resource->GetPathURL();
main_resource->Init(main_handler, base_path, kMimeTypeHtml,
GetExecMainHtml(mode, sub_url));
SetupCookieExpectations(setup, main_resource, sub_resource);
// Cross-origin requests to a server sub-resource will receive a CORS
// preflight request because we add an unsafe header.
const bool expect_cors_preflight =
sub_resource->is_cross_origin && sub_handler == HandlerType::SERVER;
if (sub_resource->is_cross_origin &&
(!sub_resource->supports_cors || !add_header)) {
// Expect the cross-origin XHR to be blocked.
main_resource->expected_failure_query_ct = 1;
if (sub_resource->supports_cors && !add_header) {
// The request supports CORS, but we didn't add the
// "Access-Control-Allow-Origin" header.
if (!expect_cors_preflight || preflight_resource != nullptr) {
// This is the error message when not expecting a CORS preflight
// request, or when the preflight request is handled by the server.
// Unhandled preflight requests will output a different error message
// (see below).
if (mode == ExecMode::XHR) {
setup->AddConsoleMessage(
"Access to XMLHttpRequest at '" + sub_url + "' from origin '" +
sub_resource->main_origin +
"' has been blocked by CORS policy: No "
"'Access-Control-Allow-Origin' "
"header is present on the requested resource.");
} else {
setup->AddConsoleMessage(
"Access to fetch at '" + sub_url + "' from origin '" +
sub_resource->main_origin +
"' has been blocked by CORS policy: No "
"'Access-Control-Allow-Origin' header is present on the "
"requested "
"resource. If an opaque response serves your needs, set the "
"request's mode to 'no-cors' to fetch the resource with CORS "
"disabled.");
}
}
} else if (mode == ExecMode::XHR) {
setup->AddConsoleMessage(
"Access to XMLHttpRequest at '" + sub_url + "' from origin '" +
sub_resource->main_origin +
"' has been blocked by CORS policy: Cross origin requests are only "
"supported for protocol schemes:");
} else {
setup->AddConsoleMessage(
"Fetch API cannot load " + sub_url +
". URL scheme must be \"http\" or \"https\" for CORS request.");
}
} else {
// Expect the (possibly cross-origin) XHR to be allowed.
main_resource->expected_success_query_ct = 1;
}
setup->AddResource(main_resource);
setup->AddResource(sub_resource);
if (expect_cors_preflight) {
// Expect a CORS preflight request.
if (preflight_resource) {
// The server will handle the preflight request. The cross-origin XHR may
// still be blocked if the "Access-Control-Allow-Origin" header is missing
// (see above).
preflight_resource->Init(sub_handler, sub_path, kMimeTypeText,
std::string());
preflight_resource->InitPreflight(main_handler);
setup->AddResource(preflight_resource);
if (IsNonStandardType(main_handler) && add_header) {
setup->AddConsoleMessage(
"The website requested a subresource from a network that it could "
"only access because of its users' privileged network position. "
"These requests expose non-public devices and servers to the "
"internet, increasing the risk of a cross-site request forgery "
"(CSRF) attack, and/or information leakage. To mitigate these "
"risks, Chrome deprecates requests to non-public subresources when "
"initiated from non-secure contexts, and will start blocking them "
"in Chrome 92 (July 2021)");
}
} else {
// The server will not handle the preflight request. Expect the
// cross-origin XHR to be blocked.
main_resource->expected_failure_query_ct = 1;
main_resource->expected_success_query_ct = 0;
sub_resource->expected_response_ct = 0;
if (mode == ExecMode::XHR) {
setup->AddConsoleMessage(
"Access to XMLHttpRequest at '" + sub_url + "' from origin '" +
sub_resource->main_origin +
"' has been blocked by CORS policy: Response to preflight request "
"doesn't pass access control check: No "
"'Access-Control-Allow-Origin' header is present on the requested "
"resource.");
} else {
setup->AddConsoleMessage(
"Access to fetch at '" + sub_url + "' from origin '" +
sub_resource->main_origin +
"' has been blocked by CORS policy: Response to preflight request "
"doesn't pass access control check: No "
"'Access-Control-Allow-Origin' header is present on the requested "
"resource. If an opaque response serves your needs, set the "
"request's mode to 'no-cors' to fetch the resource with CORS "
"disabled.");
}
}
}
}
} // namespace
// Test XHR requests with different origin combinations.
#define CORS_TEST_XHR(test_name, handler_main, handler_sub, add_header) \
TEST(CorsTest, Xhr##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main; \
SubResource resource_sub; \
PreflightResource resource_preflight; \
SetupExecRequest(ExecMode::XHR, &setup, "CorsTest.Xhr" #test_name, \
HandlerType::handler_main, &resource_main, \
HandlerType::handler_sub, &resource_sub, \
&resource_preflight, add_header); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
// Test all origin combinations (same and cross-origin).
#define CORS_TEST_XHR_ALL(name, add_header) \
CORS_TEST_XHR(name##ServerToServer, SERVER, SERVER, add_header) \
CORS_TEST_XHR(name##ServerToHttpScheme, SERVER, HTTP_SCHEME, add_header) \
CORS_TEST_XHR(name##ServerToCustomStandardScheme, SERVER, \
CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##ServerToCustomNonStandardScheme, SERVER, \
CUSTOM_NONSTANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##ServerToCustomUnregisteredScheme, SERVER, \
CUSTOM_UNREGISTERED_SCHEME, add_header) \
CORS_TEST_XHR(name##HttpSchemeToServer, HTTP_SCHEME, SERVER, add_header) \
CORS_TEST_XHR(name##HttpSchemeToHttpScheme, HTTP_SCHEME, HTTP_SCHEME, \
add_header) \
CORS_TEST_XHR(name##HttpSchemeToCustomStandardScheme, HTTP_SCHEME, \
CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##HttpSchemeToCustomNonStandardScheme, HTTP_SCHEME, \
CUSTOM_NONSTANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##HttpSchemeToCustomUnregisteredScheme, HTTP_SCHEME, \
CUSTOM_UNREGISTERED_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomStandardSchemeToServer, CUSTOM_STANDARD_SCHEME, \
SERVER, add_header) \
CORS_TEST_XHR(name##CustomStandardSchemeToHttpScheme, \
CUSTOM_STANDARD_SCHEME, HTTP_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomStandardSchemeToCustomStandardScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomStandardSchemeToCustomNonStandardScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomStandardSchemeToCustomUnregisteredScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
add_header) \
CORS_TEST_XHR(name##CustomNonStandardSchemeToServer, \
CUSTOM_NONSTANDARD_SCHEME, SERVER, add_header) \
CORS_TEST_XHR(name##CustomNonStandardSchemeToHttpScheme, \
CUSTOM_NONSTANDARD_SCHEME, HTTP_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomNonStandardSchemeToCustomStandardScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomNonStandardSchemeToCustomNonStandardScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
add_header) \
CORS_TEST_XHR(name##CustomNonStandardSchemeToCustomUnregisteredScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
add_header) \
CORS_TEST_XHR(name##CustomUnregisteredSchemeToServer, \
CUSTOM_UNREGISTERED_SCHEME, SERVER, add_header) \
CORS_TEST_XHR(name##CustomUnregisteredSchemeToHttpScheme, \
CUSTOM_UNREGISTERED_SCHEME, HTTP_SCHEME, add_header) \
CORS_TEST_XHR(name##CustomUnregisteredSchemeToCustomStandardScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_STANDARD_SCHEME, \
add_header) \
CORS_TEST_XHR(name##CustomUnregisteredSchemeToCustomNonStandardScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
add_header) \
CORS_TEST_XHR(name##CustomUnregisteredSchemeToCustomUnregisteredScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
add_header)
// XHR requests without the "Access-Control-Allow-Origin" header.
CORS_TEST_XHR_ALL(NoHeader, false)
// XHR requests with the "Access-Control-Allow-Origin" header.
CORS_TEST_XHR_ALL(WithHeader, true)
// Like above, but without handling CORS preflight requests.
#define CORS_TEST_XHR_NO_PREFLIGHT(test_name, handler_main, handler_sub, \
add_header) \
TEST(CorsTest, Xhr##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main; \
SubResource resource_sub; \
SetupExecRequest(ExecMode::XHR, &setup, "CorsTest.Xhr" #test_name, \
HandlerType::handler_main, &resource_main, \
HandlerType::handler_sub, &resource_sub, nullptr, \
add_header); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
#define CORS_TEST_XHR_NO_PREFLIGHT_SERVER(name, add_header) \
CORS_TEST_XHR_NO_PREFLIGHT(name##ServerToServer, SERVER, SERVER, add_header) \
CORS_TEST_XHR_NO_PREFLIGHT(name##HttpSchemeToServer, HTTP_SCHEME, SERVER, \
add_header) \
CORS_TEST_XHR_NO_PREFLIGHT(name##CustomStandardSchemeToServer, \
CUSTOM_STANDARD_SCHEME, SERVER, add_header) \
CORS_TEST_XHR_NO_PREFLIGHT(name##CustomNonStandardSchemeToServer, \
CUSTOM_NONSTANDARD_SCHEME, SERVER, add_header)
// XHR requests without the "Access-Control-Allow-Origin" header.
CORS_TEST_XHR_NO_PREFLIGHT_SERVER(NoHeaderNoPreflight, false)
// XHR requests with the "Access-Control-Allow-Origin" header.
CORS_TEST_XHR_NO_PREFLIGHT_SERVER(WithHeaderNoPreflight, true)
// Test fetch requests with different origin combinations.
#define CORS_TEST_FETCH(test_name, handler_main, handler_sub, add_header) \
TEST(CorsTest, Fetch##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main; \
SubResource resource_sub; \
PreflightResource resource_preflight; \
SetupExecRequest(ExecMode::FETCH, &setup, "CorsTest.Fetch" #test_name, \
HandlerType::handler_main, &resource_main, \
HandlerType::handler_sub, &resource_sub, \
&resource_preflight, add_header); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
// Test all origin combinations (same and cross-origin).
#define CORS_TEST_FETCH_ALL(name, add_header) \
CORS_TEST_FETCH(name##ServerToServer, SERVER, SERVER, add_header) \
CORS_TEST_FETCH(name##ServerToHttpScheme, SERVER, HTTP_SCHEME, add_header) \
CORS_TEST_FETCH(name##ServerToCustomStandardScheme, SERVER, \
CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_FETCH(name##ServerToCustomNonStandardScheme, SERVER, \
CUSTOM_NONSTANDARD_SCHEME, add_header) \
CORS_TEST_FETCH(name##ServerToCustomUnregisteredScheme, SERVER, \
CUSTOM_UNREGISTERED_SCHEME, add_header) \
CORS_TEST_FETCH(name##HttpSchemeToServer, HTTP_SCHEME, SERVER, add_header) \
CORS_TEST_FETCH(name##HttpSchemeToHttpScheme, HTTP_SCHEME, HTTP_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##HttpSchemeToCustomStandardScheme, HTTP_SCHEME, \
CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_FETCH(name##HttpSchemeToCustomNonStandardScheme, HTTP_SCHEME, \
CUSTOM_NONSTANDARD_SCHEME, add_header) \
CORS_TEST_FETCH(name##HttpSchemeToCustomUnregisteredScheme, HTTP_SCHEME, \
CUSTOM_UNREGISTERED_SCHEME, add_header) \
CORS_TEST_FETCH(name##CustomStandardSchemeToServer, CUSTOM_STANDARD_SCHEME, \
SERVER, add_header) \
CORS_TEST_FETCH(name##CustomStandardSchemeToHttpScheme, \
CUSTOM_STANDARD_SCHEME, HTTP_SCHEME, add_header) \
CORS_TEST_FETCH(name##CustomStandardSchemeToCustomStandardScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_STANDARD_SCHEME, add_header) \
CORS_TEST_FETCH(name##CustomStandardSchemeToCustomNonStandardScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomStandardSchemeToCustomUnregisteredScheme, \
CUSTOM_STANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomNonStandardSchemeToServer, \
CUSTOM_NONSTANDARD_SCHEME, SERVER, add_header) \
CORS_TEST_FETCH(name##CustomNonStandardSchemeToHttpScheme, \
CUSTOM_NONSTANDARD_SCHEME, HTTP_SCHEME, add_header) \
CORS_TEST_FETCH(name##CustomNonStandardSchemeToCustomStandardScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_STANDARD_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomNonStandardSchemeToCustomNonStandardScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomNonStandardSchemeToCustomUnregisteredScheme, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomUnregisteredSchemeToServer, \
CUSTOM_UNREGISTERED_SCHEME, SERVER, add_header) \
CORS_TEST_FETCH(name##CustomUnregisteredSchemeToHttpScheme, \
CUSTOM_UNREGISTERED_SCHEME, HTTP_SCHEME, add_header) \
CORS_TEST_FETCH(name##CustomUnregisteredSchemeToCustomStandardScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_STANDARD_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomUnregisteredSchemeToCustomNonStandardScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_NONSTANDARD_SCHEME, \
add_header) \
CORS_TEST_FETCH(name##CustomUnregisteredSchemeToCustomUnregisteredScheme, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_UNREGISTERED_SCHEME, \
add_header)
// Fetch requests without the "Access-Control-Allow-Origin" header.
CORS_TEST_FETCH_ALL(NoHeader, false)
// Fetch requests with the "Access-Control-Allow-Origin" header.
CORS_TEST_FETCH_ALL(WithHeader, true)
// Like above, but without handling CORS preflight requests.
#define CORS_TEST_FETCH_NO_PREFLIGHT(test_name, handler_main, handler_sub, \
add_header) \
TEST(CorsTest, Fetch##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main; \
SubResource resource_sub; \
SetupExecRequest(ExecMode::FETCH, &setup, "CorsTest.Fetch" #test_name, \
HandlerType::handler_main, &resource_main, \
HandlerType::handler_sub, &resource_sub, nullptr, \
add_header); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
#define CORS_TEST_FETCH_NO_PREFLIGHT_SERVER(name, add_header) \
CORS_TEST_FETCH_NO_PREFLIGHT(name##ServerToServer, SERVER, SERVER, \
add_header) \
CORS_TEST_FETCH_NO_PREFLIGHT(name##HttpSchemeToServer, HTTP_SCHEME, SERVER, \
add_header) \
CORS_TEST_FETCH_NO_PREFLIGHT(name##CustomStandardSchemeToServer, \
CUSTOM_STANDARD_SCHEME, SERVER, add_header) \
CORS_TEST_FETCH_NO_PREFLIGHT(name##CustomNonStandardSchemeToServer, \
CUSTOM_NONSTANDARD_SCHEME, SERVER, add_header)
// Fetch requests without the "Access-Control-Allow-Origin" header.
CORS_TEST_FETCH_NO_PREFLIGHT_SERVER(NoHeaderNoPreflight, false)
// Fetch requests with the "Access-Control-Allow-Origin" header.
CORS_TEST_FETCH_NO_PREFLIGHT_SERVER(WithHeaderNoPreflight, true)
namespace {
enum class RedirectMode {
MODE_302,
MODE_307,
};
struct RedirectGetResource : CookieResource {
RedirectGetResource() {}
bool VerifyRequest(CefRefPtr<CefRequest> request) const override {
if (!CookieResource::VerifyRequest(request))
return false;
// The "Origin" header should never be present for a redirect.
const std::string& origin = request->GetHeaderByName("Origin");
EXPECT_TRUE(origin.empty()) << GetPathURL();
return origin.empty();
}
};
void SetupRedirectResponse(RedirectMode mode,
const std::string& redirect_url,
CefRefPtr<CefResponse> response) {
if (mode == RedirectMode::MODE_302)
response->SetStatus(302);
else if (mode == RedirectMode::MODE_307)
response->SetStatus(307);
else
NOTREACHED();
response->SetHeaderByName("Location", redirect_url,
/*override=*/false);
}
// Test redirect requests.
void SetupRedirectGetRequest(RedirectMode mode,
CookieTestSetup* setup,
const std::string& test_name,
HandlerType main_handler,
CookieResource* main_resource,
HandlerType redirect_handler,
RedirectGetResource* redirect_resource) {
const std::string& base_path = "/" + test_name;
// Expect a single redirect request that sends SuccessMsg.
redirect_resource->Init(redirect_handler, base_path + ".redirect.html",
kMimeTypeHtml, GetDefaultSuccessMsgHtml());
redirect_resource->expected_success_query_ct = 1;
// Expect a single main request that results in a redirect.
const std::string& redirect_url = redirect_resource->GetPathURL();
main_resource->Init(main_handler, base_path, kMimeTypeHtml, std::string());
SetupRedirectResponse(mode, redirect_url, main_resource->response);
SetupCookieExpectations(setup, main_resource, redirect_resource);
setup->AddResource(main_resource);
setup->AddResource(redirect_resource);
}
} // namespace
// Test redirect GET requests with different origin combinations.
#define CORS_TEST_REDIRECT_GET(test_name, mode, handler_main, \
handler_redirect) \
TEST(CorsTest, RedirectGet##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main; \
RedirectGetResource resource_redirect; \
SetupRedirectGetRequest( \
RedirectMode::mode, &setup, "CorsTest.RedirectGet" #test_name, \
HandlerType::handler_main, &resource_main, \
HandlerType::handler_redirect, &resource_redirect); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
// Test all redirect GET combinations (same and cross-origin).
#define CORS_TEST_REDIRECT_GET_ALL(name, mode) \
CORS_TEST_REDIRECT_GET(name##ServerToServer, mode, SERVER, SERVER) \
CORS_TEST_REDIRECT_GET(name##ServerToHttpScheme, mode, SERVER, HTTP_SCHEME) \
CORS_TEST_REDIRECT_GET(name##ServerToCustomStandardScheme, mode, SERVER, \
CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET(name##ServerToCustomNonStandardScheme, mode, SERVER, \
CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET(name##ServerToCustomUnregisteredScheme, mode, SERVER, \
CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_GET(name##HttpSchemeToServer, mode, HTTP_SCHEME, SERVER) \
CORS_TEST_REDIRECT_GET(name##HttpSchemeToHttpScheme, mode, HTTP_SCHEME, \
HTTP_SCHEME) \
CORS_TEST_REDIRECT_GET(name##HttpSchemeToCustomStandardScheme, mode, \
HTTP_SCHEME, CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET(name##HttpSchemeToCustomNonStandardScheme, mode, \
HTTP_SCHEME, CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET(name##HttpSchemeToCustomUnregisteredScheme, mode, \
HTTP_SCHEME, CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomStandardSchemeToServer, mode, \
CUSTOM_STANDARD_SCHEME, SERVER) \
CORS_TEST_REDIRECT_GET(name##CustomStandardSchemeToHttpScheme, mode, \
CUSTOM_STANDARD_SCHEME, HTTP_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomStandardSchemeToCustomStandardScheme, \
mode, CUSTOM_STANDARD_SCHEME, CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomStandardSchemeToCustomNonStandardScheme, \
mode, CUSTOM_STANDARD_SCHEME, \
CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomStandardSchemeToCustomUnregisteredScheme, \
mode, CUSTOM_STANDARD_SCHEME, \
CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomNonStandardSchemeToServer, mode, \
CUSTOM_NONSTANDARD_SCHEME, SERVER) \
CORS_TEST_REDIRECT_GET(name##CustomNonStandardSchemeToHttpScheme, mode, \
CUSTOM_NONSTANDARD_SCHEME, HTTP_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomNonStandardSchemeToCustomStandardScheme, \
mode, CUSTOM_NONSTANDARD_SCHEME, \
CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET( \
name##CustomNonStandardSchemeToCustomNonStandardScheme, mode, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET( \
name##CustomNonStandardSchemeToCustomUnregisteredScheme, mode, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomUnregisteredSchemeToServer, mode, \
CUSTOM_UNREGISTERED_SCHEME, SERVER) \
CORS_TEST_REDIRECT_GET(name##CustomUnregisteredSchemeToHttpScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, HTTP_SCHEME) \
CORS_TEST_REDIRECT_GET(name##CustomUnregisteredSchemeToCustomStandardScheme, \
mode, CUSTOM_UNREGISTERED_SCHEME, \
CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET( \
name##CustomUnregisteredSchemeToCustomNonStandardScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_GET( \
name##CustomUnregisteredSchemeToCustomUnregisteredScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_UNREGISTERED_SCHEME)
// Redirect GET requests.
CORS_TEST_REDIRECT_GET_ALL(302, MODE_302)
CORS_TEST_REDIRECT_GET_ALL(307, MODE_307)
namespace {
struct PostResource : CookieResource {
PostResource() {}
bool expect_downgrade_to_get = false;
bool was_redirected = false;
std::string main_origin;
bool is_cross_origin;
void InitOrigin(HandlerType main_handler) {
// Origin is always "null" for non-HTTP(S) schemes.
// This should only be "null" for non-standard schemes, but Blink is likely
// using SchemeIsHTTPOrHTTPS() when submitting the form request.
main_origin = IsNonStandardType(main_handler) ||
main_handler == HandlerType::CUSTOM_STANDARD_SCHEME
? "null"
: GetOrigin(main_handler);
// True if the request is considered cross-origin. Any requests between
// non-standard schemes are considered cross-origin (due to the "null"
// origin).
is_cross_origin =
main_handler != handler ||
(IsNonStandardType(main_handler) && handler == main_handler);
}
bool VerifyRequest(CefRefPtr<CefRequest> request) const override {
if (!CookieResource::VerifyRequest(request))
return false;
// The "Origin" header should be present if the request is POST, and was not
// redirected cross-origin.
std::string expected_origin;
if (!expect_downgrade_to_get) {
if (was_redirected && is_cross_origin) {
// Always "null" for cross-origin redirects.
expected_origin = "null";
} else {
expected_origin = main_origin;
}
}
const std::string& origin = request->GetHeaderByName("Origin");
EXPECT_STREQ(expected_origin.c_str(), origin.c_str()) << GetPathURL();
if (expected_origin != origin)
return false;
const std::string& req_method = request->GetMethod();
const bool has_post_data = request->GetPostData() != nullptr;
if (expect_downgrade_to_get) {
EXPECT_FALSE(has_post_data) << GetPathURL();
EXPECT_STREQ("GET", req_method.c_str()) << GetPathURL();
return !has_post_data && req_method == "GET";
} else {
EXPECT_TRUE(has_post_data) << GetPathURL();
EXPECT_STREQ("POST", req_method.c_str()) << GetPathURL();
return has_post_data && req_method == "POST";
}
}
};
std::string GetPostFormHtml(const std::string& submit_url) {
return "<html><body>"
"<form id=\"f\" action=\"" +
submit_url +
"\" method=\"post\">"
"<input type=\"hidden\" name=\"n\" value=\"v\"></form>"
"<script>document.getElementById('f').submit();</script>"
"</body></html>";
}
// Test redirect requests.
void SetupRedirectPostRequest(RedirectMode mode,
CookieTestSetup* setup,
const std::string& test_name,
HandlerType main_handler,
CookieResource* main_resource,
PostResource* submit_resource,
HandlerType redirect_handler,
PostResource* redirect_resource) {
const std::string& base_path = "/" + test_name;
// Expect a single redirect request that sends SuccessMsg.
redirect_resource->Init(redirect_handler, base_path + ".redirect.html",
kMimeTypeHtml, GetDefaultSuccessMsgHtml());
redirect_resource->InitOrigin(main_handler);
redirect_resource->expected_success_query_ct = 1;
// 302 redirects will downgrade POST requests to GET.
redirect_resource->expect_downgrade_to_get = mode == RedirectMode::MODE_302;
redirect_resource->was_redirected = true;
// Expect a single submit request that redirects the response.
const std::string& redirect_url = redirect_resource->GetPathURL();
submit_resource->Init(main_handler, base_path + ".submit.html", kMimeTypeHtml,
std::string());
submit_resource->InitOrigin(main_handler);
SetupRedirectResponse(mode, redirect_url, submit_resource->response);
// Expect a single main request that submits the form.
const std::string& submit_url = submit_resource->GetPathURL();
main_resource->Init(main_handler, base_path, kMimeTypeHtml,
GetPostFormHtml(submit_url));
SetupCookieExpectations(setup, main_resource, submit_resource);
SetupCookieExpectations(setup, main_resource, redirect_resource);
setup->AddResource(main_resource);
setup->AddResource(submit_resource);
setup->AddResource(redirect_resource);
}
} // namespace
// Test redirect GET requests with different origin combinations.
#define CORS_TEST_REDIRECT_POST(test_name, mode, handler_main, \
handler_redirect) \
TEST(CorsTest, RedirectPost##test_name) { \
CookieTestSetup setup; \
CookieResource resource_main; \
PostResource resource_submit, resource_redirect; \
SetupRedirectPostRequest( \
RedirectMode::mode, &setup, "CorsTest.RedirectPost" #test_name, \
HandlerType::handler_main, &resource_main, &resource_submit, \
HandlerType::handler_redirect, &resource_redirect); \
CefRefPtr<CorsTestHandler> handler = new CorsTestHandler(&setup); \
handler->ExecuteTest(); \
ReleaseAndWaitForDestructor(handler); \
}
// Test all redirect GET combinations (same and cross-origin).
#define CORS_TEST_REDIRECT_POST_ALL(name, mode) \
CORS_TEST_REDIRECT_POST(name##ServerToServer, mode, SERVER, SERVER) \
CORS_TEST_REDIRECT_POST(name##ServerToHttpScheme, mode, SERVER, HTTP_SCHEME) \
CORS_TEST_REDIRECT_POST(name##ServerToCustomStandardScheme, mode, SERVER, \
CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST(name##ServerToCustomNonStandardScheme, mode, SERVER, \
CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST(name##ServerToCustomUnregisteredScheme, mode, \
SERVER, CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_POST(name##HttpSchemeToServer, mode, HTTP_SCHEME, SERVER) \
CORS_TEST_REDIRECT_POST(name##HttpSchemeToHttpScheme, mode, HTTP_SCHEME, \
HTTP_SCHEME) \
CORS_TEST_REDIRECT_POST(name##HttpSchemeToCustomStandardScheme, mode, \
HTTP_SCHEME, CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST(name##HttpSchemeToCustomNonStandardScheme, mode, \
HTTP_SCHEME, CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST(name##HttpSchemeToCustomUnregisteredScheme, mode, \
HTTP_SCHEME, CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_POST(name##CustomStandardSchemeToServer, mode, \
CUSTOM_STANDARD_SCHEME, SERVER) \
CORS_TEST_REDIRECT_POST(name##CustomStandardSchemeToHttpScheme, mode, \
CUSTOM_STANDARD_SCHEME, HTTP_SCHEME) \
CORS_TEST_REDIRECT_POST(name##CustomStandardSchemeToCustomStandardScheme, \
mode, CUSTOM_STANDARD_SCHEME, \
CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST(name##CustomStandardSchemeToCustomNonStandardScheme, \
mode, CUSTOM_STANDARD_SCHEME, \
CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST( \
name##CustomStandardSchemeToCustomUnregisteredScheme, mode, \
CUSTOM_STANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_POST(name##CustomNonStandardSchemeToServer, mode, \
CUSTOM_NONSTANDARD_SCHEME, SERVER) \
CORS_TEST_REDIRECT_POST(name##CustomNonStandardSchemeToHttpScheme, mode, \
CUSTOM_NONSTANDARD_SCHEME, HTTP_SCHEME) \
CORS_TEST_REDIRECT_POST(name##CustomNonStandardSchemeToCustomStandardScheme, \
mode, CUSTOM_NONSTANDARD_SCHEME, \
CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST( \
name##CustomNonStandardSchemeToCustomNonStandardScheme, mode, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST( \
name##CustomNonStandardSchemeToCustomUnregisteredScheme, mode, \
CUSTOM_NONSTANDARD_SCHEME, CUSTOM_UNREGISTERED_SCHEME) \
CORS_TEST_REDIRECT_POST(name##CustomUnregisteredSchemeToServer, mode, \
CUSTOM_UNREGISTERED_SCHEME, SERVER) \
CORS_TEST_REDIRECT_POST(name##CustomUnregisteredSchemeToHttpScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, HTTP_SCHEME) \
CORS_TEST_REDIRECT_POST( \
name##CustomUnregisteredSchemeToCustomStandardScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_STANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST( \
name##CustomUnregisteredSchemeToCustomNonStandardScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_NONSTANDARD_SCHEME) \
CORS_TEST_REDIRECT_POST( \
name##CustomUnregisteredSchemeToCustomUnregisteredScheme, mode, \
CUSTOM_UNREGISTERED_SCHEME, CUSTOM_UNREGISTERED_SCHEME)
// Redirect GET requests.
CORS_TEST_REDIRECT_POST_ALL(302, MODE_302)
CORS_TEST_REDIRECT_POST_ALL(307, MODE_307)
// Entry point for creating plugin browser test objects.
// Called from client_app_delegates.cc.
void CreateCorsBrowserTests(client::ClientAppBrowser::DelegateSet& delegates) {
delegates.insert(new CorsBrowserTest);
}
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