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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.
#ifndef CHROME_BROWSER_TPCD_SUPPORT_VALIDITY_SERVICE_H_
#define CHROME_BROWSER_TPCD_SUPPORT_VALIDITY_SERVICE_H_
#include "base/functional/callback.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/content_settings/core/common/content_settings_types.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
class HostContentSettingsMap;
class GURL;
namespace tpcd::trial {
// ValidityService is responsible for ensuring the Tpcd deprecation trials (for
// third-parties and for top-level sites) is still enabled for the appropriate
// origin of any third-party cookie access that is (or could have been) allowed
// as a result of a |TPCD_TRIAL| or |TOP_LEVEL_TPCD_TRIAL| content setting. This
// is necessary since |content::OriginTrialsControllerDelegate| doesn't notify
// its observers when a trial is disabled for a reason other than all tokens
// being cleared or an origin intentionally disable it (by not supplying the
// token when loaded in the associated context).
class ValidityService : public content::WebContentsObserver,
public content::WebContentsUserData<ValidityService> {
public:
using ContentSettingUpdateCallback = base::OnceCallback<
void(const GURL& url, const GURL& first_party_url, bool enabled)>;
static void MaybeCreateForWebContents(content::WebContents* web_contents);
~ValidityService() override;
ValidityService(const ValidityService&) = delete;
ValidityService& operator=(const ValidityService&) = delete;
// Stops the service from removing any trial settings.
static void DisableForTesting();
private:
// So WebContentsUserData::CreateForWebContents() can call the constructor.
friend class content::WebContentsUserData<ValidityService>;
explicit ValidityService(content::WebContents* web_contents);
// Called when a third party cookie access is (or could have been) allowed by
// a |TPCD_TRIAL| or |TOP_LEVEL_TPCD_TRIAL| content setting. Posts a task to
// the UI thread to check if the appropriate trial is enabled for the
// specified context. Upon completion of the task, |update_callback| is run
// with |url|, |first_party_url|, and the trial enablement status as
// parameters.
void CheckTrialStatusAsync(ContentSettingUpdateCallback update_callback,
const ContentSettingsType trial_settings_type,
const GURL& url,
const GURL& first_party_url);
void CheckTrialStatusOnUiThread(ContentSettingUpdateCallback update_callback,
const ContentSettingsType trial_settings_type,
const GURL& url,
const GURL& first_party_url);
void UpdateTrialSettings(const ContentSettingsType trial_settings_type,
const GURL& url,
const GURL& first_party_url,
bool enabled);
void SyncTrialSettingsToNetworkService(
const ContentSettingsType trial_settings_type,
const ContentSettingsForOneType& trial_settings);
// Mostly a wrapper around
// |content::HostContentSettingsMap::GetContentSetting()|
// that accounts for the scoping differences between the trials and returns a
// boolean based on whether a matching setting exists and is
// |CONTENT_SETTING_ALLOW|.
bool CheckTrialContentSetting(const GURL& url,
const GURL& first_party_url,
const ContentSettingsType trial_settings_type,
content_settings::SettingInfo* info);
void OnCookiesAccessedImpl(const content::CookieAccessDetails& details);
// WebContentsObserver overrides:
void OnCookiesAccessed(content::RenderFrameHost* render_frame_host,
const content::CookieAccessDetails& details) override;
void OnCookiesAccessed(content::NavigationHandle* navigation_handle,
const content::CookieAccessDetails& details) override;
base::WeakPtrFactory<ValidityService> weak_factory_{this};
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
} // namespace tpcd::trial
#endif // CHROME_BROWSER_TPCD_SUPPORT_VALIDITY_SERVICE_H_
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