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// Copyright 2021 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_ENTERPRISE_CONTENT_CLIPBOARD_RESTRICTION_SERVICE_H_
#define COMPONENTS_ENTERPRISE_CONTENT_CLIPBOARD_RESTRICTION_SERVICE_H_
#include <map>
#include <memory>
#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"
#include "components/prefs/pref_change_registrar.h"
#include "components/url_matcher/url_matcher.h"
namespace content {
class BrowserContext;
}
class PrefService;
class ClipboardRestrictionService : public KeyedService {
public:
// Use
// ClipboardRestrictionServiceFactory::BuildServiceInstanceForBrowserContext
// instead.
explicit ClipboardRestrictionService(PrefService* pref_service);
ClipboardRestrictionService(const ClipboardRestrictionService&) = delete;
ClipboardRestrictionService& operator=(const ClipboardRestrictionService&) =
delete;
~ClipboardRestrictionService() override;
// Returns true if the user is allowed to write data to the clipboard from
// `url` as per the value of the CopyPreventionSettings policy, false
// otherwise. This check is only performed if `data_size` is larger than the
// `minimum_data_size` specified in the policy.
//
// If this returns false and `replacement_data` is supplied, a message will
// be written to `replacement_data` that is meant to be written to the
// clipboard instead of the intended data.
bool IsUrlAllowedToCopy(const GURL& url,
size_t data_size_in_bytes,
std::u16string* replacement_data = nullptr) const;
private:
friend class ClipboardRestrictionServiceTest;
friend class ClipboardRestrictionServiceFactory;
void UpdateSettings();
PrefChangeRegistrar pref_change_registrar_;
raw_ptr<PrefService> pref_service_;
base::MatcherStringPattern::ID next_id_;
std::unique_ptr<url_matcher::URLMatcher> enable_url_matcher_;
std::unique_ptr<url_matcher::URLMatcher> disable_url_matcher_;
size_t min_data_size_;
};
class ClipboardRestrictionServiceFactory : BrowserContextKeyedServiceFactory {
public:
ClipboardRestrictionServiceFactory(
const ClipboardRestrictionServiceFactory&) = delete;
ClipboardRestrictionServiceFactory& operator=(
const ClipboardRestrictionServiceFactory&) = delete;
static ClipboardRestrictionServiceFactory* GetInstance();
static ClipboardRestrictionService* GetForBrowserContext(
content::BrowserContext* context);
private:
ClipboardRestrictionServiceFactory();
~ClipboardRestrictionServiceFactory() override;
friend struct base::DefaultSingletonTraits<
ClipboardRestrictionServiceFactory>;
// BrowserContextKeyedServiceFactory:
content::BrowserContext* GetBrowserContextToUse(
content::BrowserContext* context) const override;
std::unique_ptr<KeyedService> BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const override;
};
#endif // COMPONENTS_ENTERPRISE_CONTENT_CLIPBOARD_RESTRICTION_SERVICE_H_
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