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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import <optional>
#import "base/functional/bind.h"
#import "base/memory/raw_ptr.h"
#import "base/test/ios/wait_util.h"
#import "base/test/scoped_feature_list.h"
#import "base/values.h"
#import "components/autofill/core/common/unique_ids.h"
#import "components/autofill/ios/browser/autofill_util.h"
#import "components/autofill/ios/browser/new_frame_catcher.h"
#import "components/autofill/ios/browser/test_autofill_java_script_feature_container.h"
#import "components/autofill/ios/common/features.h"
#import "components/autofill/ios/form_util/autofill_renderer_id_java_script_feature.h"
#import "components/autofill/ios/form_util/autofill_test_with_web_state.h"
#import "components/autofill/ios/form_util/child_frame_registrar.h"
#import "components/autofill/ios/form_util/form_handlers_java_script_feature.h"
#import "components/autofill/ios/form_util/form_util_java_script_feature.h"
#import "ios/web/public/js_messaging/web_frame.h"
#import "ios/web/public/js_messaging/web_frames_manager.h"
#import "ios/web/public/test/fakes/fake_web_client.h"
#import "ios/web/public/test/js_test_util.h"
#import "ios/web/public/test/web_test_with_web_state.h"
#import "testing/gmock/include/gmock/gmock.h"
#import "testing/gtest/include/gtest/gtest.h"
using autofill::test::NewFrameCatcher;
using base::test::ios::kWaitForJSCompletionTimeout;
using web::WebFrame;
namespace autofill {
// Test fixture for verifying the registration of remote frame tokens associated
// to frame IDs in the frames registrar.
class RemoteFrameTokenRegistrationTest : public web::WebTestWithWebState {
public:
RemoteFrameTokenRegistrationTest()
: web::WebTestWithWebState(std::make_unique<web::FakeWebClient>()),
feature_list_(kAutofillIsolatedWorldForJavascriptIos) {
web::FakeWebClient* web_client =
static_cast<web::FakeWebClient*>(GetWebClient());
web_client->SetJavaScriptFeatures({
form_handlers_java_script_feature(),
});
}
protected:
web::WebFramesManager* web_frames_manager() {
return js_feature_container.form_handlers_java_script_feature()
->GetWebFramesManager(web_state());
}
FormHandlersJavaScriptFeature* form_handlers_java_script_feature() {
return js_feature_container.form_handlers_java_script_feature();
}
ChildFrameRegistrar* frame_registrar() {
return ChildFrameRegistrar::GetOrCreateForWebState(web_state());
}
// Wait for a new frame to become available.
WebFrame* WaitForNewFrame(
std::unique_ptr<NewFrameCatcher> new_frame_catcher) {
NewFrameCatcher* catcher_ptr = new_frame_catcher.get();
EXPECT_TRUE(base::test::ios::WaitUntilConditionOrTimeout(
kWaitForJSCompletionTimeout, ^bool {
return catcher_ptr->latest_new_frame() != nullptr;
}));
return new_frame_catcher->latest_new_frame();
}
// Reads the remote frame token stored in the DOM of `frame`;
std::optional<RemoteFrameToken> GetRemoteFrameToken(WebFrame* frame) {
__block bool done = false;
__block std::string remote_frame_token;
frame->ExecuteJavaScript(
u"document.documentElement.getAttribute('__gChrome_remoteFrameToken')",
base::BindOnce(^(const base::Value* result) {
if (result && result->is_string()) {
remote_frame_token = result->GetString();
}
done = true;
}));
bool execution_complete = base::test::ios::WaitUntilConditionOrTimeout(
kWaitForJSCompletionTimeout, ^() {
return done;
});
if (execution_complete) {
if (std::optional<base::UnguessableToken> remote =
DeserializeJavaScriptFrameId(remote_frame_token)) {
return RemoteFrameToken(*remote);
}
}
return std::nullopt;
}
// Finds the local frame token associated to `remote_frame_token` in the
// frames registrar.
std::optional<LocalFrameToken> LookupLocalFrameToken(
RemoteFrameToken remote_frame_token) {
return frame_registrar()->LookupChildFrame(remote_frame_token);
}
private:
base::test::ScopedFeatureList feature_list_;
// Test instances of JavaScriptFeature's that are injected in a different
// content world depending on kAutofillIsolatedWorldForJavascriptIos.
// TODO(crbug.com/359538514): Remove this variable and use
// FormHandlersJavaScriptFeature::GetInstance() once Autofill in the isolated
// world is launched.
TestAutofillJavaScriptFeatureContainer js_feature_container;
};
// Verifies that the main frame registers a remote frame token associated to its
// frame id in the frames registrar.
TEST_F(RemoteFrameTokenRegistrationTest, MainFrameRegistersItself) {
std::unique_ptr<NewFrameCatcher> catcher =
std::make_unique<NewFrameCatcher>(web_frames_manager());
LoadHtml(@"<html><body>Test</body></html>");
WebFrame* frame = WaitForNewFrame(std::move(catcher));
ASSERT_TRUE(frame);
ASSERT_TRUE(frame->IsMainFrame());
std::optional<RemoteFrameToken> remote_frame_token =
GetRemoteFrameToken(frame);
ASSERT_TRUE(remote_frame_token);
// Verify that the remote frame token was registered to the frame id.
std::optional<LocalFrameToken> local_frame_token =
LookupLocalFrameToken(*remote_frame_token);
ASSERT_TRUE(local_frame_token);
EXPECT_THAT(frame->GetFrameId(),
testing::StrCaseEq(local_frame_token->ToString()));
}
// Validates that a child frame registers a remote frame token associated to its
// frame id.
TEST_F(RemoteFrameTokenRegistrationTest, ChildFrameRegistersItself) {
std::unique_ptr<NewFrameCatcher> catcher =
std::make_unique<NewFrameCatcher>(web_frames_manager());
LoadHtml(@"<html><body>Test</body></html>");
WebFrame* main_frame = WaitForNewFrame(std::move(catcher));
ASSERT_TRUE(main_frame);
ASSERT_TRUE(main_frame->IsMainFrame());
catcher = std::make_unique<NewFrameCatcher>(web_frames_manager());
web::test::ExecuteJavaScriptForFeature(
web_state(),
@"const newFrame = document.createElement('iframe');newFrame.id = "
@"'frame1';document.body.appendChild(newFrame);",
form_handlers_java_script_feature());
WebFrame* child_frame = WaitForNewFrame(std::move(catcher));
ASSERT_TRUE(child_frame);
ASSERT_FALSE(child_frame->IsMainFrame());
std::optional<RemoteFrameToken> main_remote_token =
GetRemoteFrameToken(main_frame);
std::optional<RemoteFrameToken> child_remote_token =
GetRemoteFrameToken(child_frame);
ASSERT_TRUE(main_remote_token);
ASSERT_TRUE(child_remote_token);
// Verify that each frame registered a remote token associated to their frame
// IDs.
std::optional<LocalFrameToken> main_local_token =
LookupLocalFrameToken(*main_remote_token);
std::optional<LocalFrameToken> child_local_token =
LookupLocalFrameToken(*child_remote_token);
ASSERT_TRUE(main_local_token);
ASSERT_TRUE(child_local_token);
EXPECT_THAT(main_frame->GetFrameId(),
testing::StrCaseEq(main_local_token->ToString()));
EXPECT_THAT(child_frame->GetFrameId(),
testing::StrCaseEq(child_local_token->ToString()));
}
} // namespace autofill
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