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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/ip_protection/common/ip_protection_status.h"
#include <gmock/gmock.h>
#include <optional>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/test/scoped_feature_list.h"
#include "components/ip_protection/common/ip_protection_status_observer.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_user_data.h"
#include "content/public/test/test_renderer_host.h"
#include "net/base/features.h"
#include "net/base/proxy_chain.h"
#include "net/base/proxy_string_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/mojom/loader/resource_load_info.mojom.h"
#include "url/gurl.h"
namespace content {
class WebContents;
} // namespace content
namespace ip_protection {
namespace {
using ::content::WebContents;
using ::testing::_;
net::ProxyChain CreateProxyChain(bool is_for_ip_protection,
bool is_direct = false) {
if (is_for_ip_protection) {
if (is_direct) {
return net::ProxyChain::Direct();
}
return net::ProxyChain::ForIpProtection(
{net::ProxyUriToProxyServer("foo:555", net::ProxyServer::SCHEME_HTTPS),
net::ProxyUriToProxyServer("foo:666",
net::ProxyServer::SCHEME_HTTPS)});
}
// Default to invalid proxy chain.
return net::ProxyChain();
}
blink::mojom::ResourceLoadInfoPtr CreateResourceLoadInfo(
net::ProxyChain proxy_chain) {
blink::mojom::ResourceLoadInfoPtr resource_load_info =
blink::mojom::ResourceLoadInfo::New();
resource_load_info->proxy_chain = std::move(proxy_chain);
return resource_load_info;
}
class MockIpProtectionStatusObserver : public IpProtectionStatusObserver {
public:
MOCK_METHOD(void,
OnFirstSubresourceProxiedOnCurrentPrimaryPage,
(),
(const, override));
};
class IpProtectionStatusTest : public content::RenderViewHostTestHarness {
public:
IpProtectionStatusTest() = default;
void SetUp() override {
content::RenderViewHostTestHarness::SetUp();
scoped_feature_list_.InitAndEnableFeature(
net::features::kEnableIpProtectionProxy);
// Create the IpProtectionStatus object and attach it to the web contents.
IpProtectionStatus::CreateForWebContents(
RenderViewHostTestHarness::web_contents());
ip_protection_status_ = IpProtectionStatus::FromWebContents(web_contents());
ip_protection_status_->AddObserver(&mock_observer_);
}
void TearDown() override {
ip_protection_status_->RemoveObserver(&mock_observer_);
ip_protection_status_ = nullptr;
content::RenderViewHostTestHarness::TearDown();
}
protected:
base::test::ScopedFeatureList scoped_feature_list_;
MockIpProtectionStatusObserver mock_observer_;
raw_ptr<IpProtectionStatus> ip_protection_status_;
};
TEST_F(IpProtectionStatusTest,
SubresourceProxied_NonIpProtectionProxyChain_ObserverNotNotified) {
EXPECT_CALL(mock_observer_, OnFirstSubresourceProxiedOnCurrentPrimaryPage())
.Times(0);
// Verify that the state is initially false.
EXPECT_FALSE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
// Simulate a subresource load with a direct proxy chain.
ip_protection_status_->ResourceLoadComplete(
content::RenderViewHostTestHarness::main_rfh(),
content::GlobalRequestID(),
*CreateResourceLoadInfo(
CreateProxyChain(/*is_for_ip_protection=*/false)));
// Verify that the state is not updated and remained false.
EXPECT_FALSE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
}
TEST_F(IpProtectionStatusTest,
SubresourceProxied_DirectProxyChain_ObserverNotNotified) {
EXPECT_CALL(mock_observer_, OnFirstSubresourceProxiedOnCurrentPrimaryPage())
.Times(0);
// Verify that the state is initially false.
EXPECT_FALSE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
// Simulate a subresource load with a direct proxy chain.
ip_protection_status_->ResourceLoadComplete(
content::RenderViewHostTestHarness::main_rfh(),
content::GlobalRequestID(),
*CreateResourceLoadInfo(CreateProxyChain(/*is_for_ip_protection=*/true,
/*is_direct=*/true)));
// Verify that the state is not updated and remained false.
EXPECT_FALSE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
}
TEST_F(IpProtectionStatusTest,
SubresourceProxied_IpProtectionProxyChain_ObserverNotified) {
EXPECT_CALL(mock_observer_, OnFirstSubresourceProxiedOnCurrentPrimaryPage());
// Verify that the state is initially false.
EXPECT_FALSE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
// Simulate a subresource load with a valid IP Protection proxy chain.
ip_protection_status_->ResourceLoadComplete(
content::RenderViewHostTestHarness::main_rfh(),
content::GlobalRequestID(),
*CreateResourceLoadInfo(CreateProxyChain(/*is_for_ip_protection=*/true)));
// Verify that the state shows that a subresource was proxied.
EXPECT_TRUE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
}
TEST_F(IpProtectionStatusTest, PrimaryPageChanged_StateReset) {
// Simulate a subresource load with a valid IP Protection proxy chain.
ip_protection_status_->ResourceLoadComplete(
content::RenderViewHostTestHarness::main_rfh(),
content::GlobalRequestID(),
*CreateResourceLoadInfo(CreateProxyChain(/*is_for_ip_protection=*/true)));
// Verify that the state shows that a subresource was proxied.
EXPECT_TRUE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
// Simulate a primary page change.
ip_protection_status_->PrimaryPageChanged(
content::RenderViewHostTestHarness::main_rfh()->GetPage());
// Verify that the state is reset.
EXPECT_FALSE(
ip_protection_status_->IsSubresourceProxiedOnCurrentPrimaryPage());
}
} // namespace
} // namespace ip_protection
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