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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_NAVIGATION_PREDICTOR_NAVIGATION_PREDICTOR_PRECONNECT_CLIENT_H_
#define CHROME_BROWSER_NAVIGATION_PREDICTOR_NAVIGATION_PREDICTOR_PRECONNECT_CLIENT_H_
#include <optional>
#include "base/memory/raw_ptr.h"
#include "base/sequence_checker.h"
#include "base/timer/timer.h"
#include "chrome/browser/navigation_predictor/search_engine_preconnector.h"
#include "content/public/browser/visibility.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
#include "url/origin.h"
namespace content {
class BrowserContext;
class RenderFrameHost;
} // namespace content
class NavigationPredictorKeyedService;
class NavigationPredictorPreconnectClient
: public content::WebContentsObserver,
public content::WebContentsUserData<NavigationPredictorPreconnectClient> {
public:
NavigationPredictorPreconnectClient(
const NavigationPredictorPreconnectClient&) = delete;
NavigationPredictorPreconnectClient& operator=(
const NavigationPredictorPreconnectClient&) = delete;
~NavigationPredictorPreconnectClient() override;
static void EnablePreconnectsForLocalIPsForTesting(
bool enable_preconnects_for_local_ips) {
enable_preconnects_for_local_ips_for_testing_ =
enable_preconnects_for_local_ips;
}
static void SetPreconnectIntervalForTesting(int interval) {
preconnect_interval_for_testing_ = interval;
}
private:
friend class content::WebContentsUserData<
NavigationPredictorPreconnectClient>;
explicit NavigationPredictorPreconnectClient(
content::WebContents* web_contents);
NavigationPredictorKeyedService* GetNavigationPredictorKeyedService() const;
SearchEnginePreconnector* GetSearchEnginePreconnector();
// content::WebContentsObserver:
void OnVisibilityChanged(content::Visibility visibility) override;
void DidFinishLoad(content::RenderFrameHost* render_frame_host,
const GURL& validated_url) override;
void DidFinishNavigation(
content::NavigationHandle* navigation_handle) override;
// Returns template URL service. Guaranteed to be non-null.
bool IsSearchEnginePage() const;
std::optional<url::Origin> GetOriginToPreconnect(
const GURL& document_url) const;
// MaybePreconnectNow preconnects to an origin server if it's allowed.
void MaybePreconnectNow(size_t preconnects_attempted);
// Returns true if the origin is publicly routable.
std::optional<bool> IsPubliclyRoutable(
content::NavigationHandle* navigation_handle) const;
int GetPreconnectInterval() const;
// Used to get keyed services.
const raw_ptr<content::BrowserContext> browser_context_;
// Set to true only if preconnects are allowed to local IPs. Defaulted to
// false. Set to true only for testing.
static bool enable_preconnects_for_local_ips_for_testing_;
// Set preconnct interval for testing.
static std::optional<int> preconnect_interval_for_testing_;
// Current visibility state of the web contents.
content::Visibility current_visibility_;
// Used to preconnect regularly.
base::OneShotTimer timer_;
// Set to true if the origin is publicly routable.
bool is_publicly_routable_ = true;
SEQUENCE_CHECKER(sequence_checker_);
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
#endif // CHROME_BROWSER_NAVIGATION_PREDICTOR_NAVIGATION_PREDICTOR_PRECONNECT_CLIENT_H_
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