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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 "base/feature_list.h"
#include "components/ip_protection/common/ip_protection_status_observer.h"
#include "content/public/browser/global_request_id.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
#include "net/base/features.h"
#include "net/base/proxy_chain.h"
#include "third_party/blink/public/mojom/loader/resource_load_info.mojom.h"
namespace ip_protection {
// static
void IpProtectionStatus::CreateForWebContents(
content::WebContents* web_contents) {
CHECK(base::FeatureList::IsEnabled(net::features::kEnableIpProtectionProxy));
content::WebContentsUserData<IpProtectionStatus>::CreateForWebContents(
web_contents);
}
IpProtectionStatus::IpProtectionStatus(content::WebContents* web_contents)
: content::WebContentsUserData<IpProtectionStatus>(*web_contents),
content::WebContentsObserver(web_contents) {}
IpProtectionStatus::~IpProtectionStatus() = default;
void IpProtectionStatus::AddObserver(IpProtectionStatusObserver* observer) {
observer_list_.AddObserver(observer);
}
void IpProtectionStatus::RemoveObserver(IpProtectionStatusObserver* observer) {
observer_list_.RemoveObserver(observer);
}
// content::WebContentsObserver:
void IpProtectionStatus::PrimaryPageChanged(content::Page& page) {
is_subresource_proxied_on_current_primary_page_ = false;
}
void IpProtectionStatus::ResourceLoadComplete(
content::RenderFrameHost* render_frame_host,
const content::GlobalRequestID& request_id,
const blink::mojom::ResourceLoadInfo& resource_load_info) {
// If the subresource was already proxied on this page, return early.
if (is_subresource_proxied_on_current_primary_page_) {
return;
}
const net::ProxyChain& proxy_chain = resource_load_info.proxy_chain;
if (proxy_chain.is_for_ip_protection() && !proxy_chain.is_direct()) {
is_subresource_proxied_on_current_primary_page_ = true;
// Notify observers that a subresource was proxied on the current page.
for (const auto& observer : observer_list_) {
observer.OnFirstSubresourceProxiedOnCurrentPrimaryPage();
}
}
}
// Data key required for WebContentsUserData.
WEB_CONTENTS_USER_DATA_KEY_IMPL(IpProtectionStatus);
} // namespace ip_protection
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