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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_POLICY_CONTENT_SAFE_SEARCH_SERVICE_H_
#define COMPONENTS_POLICY_CONTENT_SAFE_SEARCH_SERVICE_H_
#include <memory>
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/singleton.h"
#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
#include "components/keyed_service/core/keyed_service.h"
class GURL;
namespace safe_search_api {
class URLChecker;
} // namespace safe_search_api
// SafeSearchService and SafeSearchFactory provide a way for
// us to access a Context-specific instance of safe_search_api.
class SafeSearchService : public KeyedService {
public:
using CheckSafeSearchCallback = base::OnceCallback<void(bool is_safe)>;
explicit SafeSearchService(content::BrowserContext* browser_context);
SafeSearchService(const SafeSearchService&) = delete;
SafeSearchService& operator=(const SafeSearchService&) = delete;
~SafeSearchService() override;
// Starts a call to the Safe Search API for the given URL to determine whether
// the URL is "safe" (not porn). Returns whether |callback| was run
// synchronously.
bool CheckSafeSearchURL(const GURL& url, CheckSafeSearchCallback callback);
// Creates a SafeSearch URLChecker using a given URLLoaderFactory for testing.
void SetSafeSearchURLCheckerForTest(
std::unique_ptr<safe_search_api::URLChecker> safe_search_url_checker);
private:
const raw_ptr<content::BrowserContext> browser_context_;
std::unique_ptr<safe_search_api::URLChecker> safe_search_url_checker_;
};
class SafeSearchFactory : public BrowserContextKeyedServiceFactory {
public:
SafeSearchFactory(const SafeSearchFactory&) = delete;
SafeSearchFactory& operator=(const SafeSearchFactory&) = delete;
static SafeSearchFactory* GetInstance();
static SafeSearchService* GetForBrowserContext(
content::BrowserContext* context);
private:
SafeSearchFactory();
~SafeSearchFactory() override;
friend struct base::DefaultSingletonTraits<SafeSearchFactory>;
// BrowserContextKeyedServiceFactory:
std::unique_ptr<KeyedService> BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const override;
// Finds which browser context (if any) to use.
content::BrowserContext* GetBrowserContextToUse(
content::BrowserContext* context) const override;
};
#endif // COMPONENTS_POLICY_CONTENT_SAFE_SEARCH_SERVICE_H_
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