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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_SMART_CARD_SMART_CARD_PERMISSION_CONTEXT_H_
#define CHROME_BROWSER_SMART_CARD_SMART_CARD_PERMISSION_CONTEXT_H_
#include <cstdint>
#include <map>
#include <set>
#include "base/containers/flat_map.h"
#include "base/memory/raw_ref.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/scoped_observation.h"
#include "base/time/time.h"
#include "chrome/browser/smart_card/smart_card_permission_request.h"
#include "chrome/browser/smart_card/smart_card_reader_tracker.h"
#include "components/permissions/object_permission_context_base.h"
#include "content/public/browser/smart_card_delegate.h"
#include "url/origin.h"
class Profile;
namespace content {
class RenderFrameHost;
} // namespace content
namespace settings {
class SmartCardReaderPermissionsSiteSettingsHandlerTest;
} // namespace settings
namespace site_settings {
class SiteSettingsHelperChooserExceptionTest;
} // namespace site_settings
class SmartCardPermissionContext
: public permissions::ObjectPermissionContextBase,
public permissions::ObjectPermissionContextBase::PermissionObserver {
public:
// Callback type to report whether the user allowed the connection request.
using RequestReaderPermissionCallback = base::OnceCallback<void(bool)>;
explicit SmartCardPermissionContext(Profile* profile);
SmartCardPermissionContext(const SmartCardPermissionContext&) = delete;
SmartCardPermissionContext& operator=(const SmartCardPermissionContext&) =
delete;
~SmartCardPermissionContext() override;
bool HasReaderPermission(content::RenderFrameHost& render_frame_host,
const std::string& reader_name);
void RequestReaderPermisssion(content::RenderFrameHost& render_frame_host,
const std::string& reader_name,
RequestReaderPermissionCallback callback);
// permissions::ObjectPermissionContextBase:
std::string GetKeyForObject(const base::Value::Dict& object) override;
bool IsValidObject(const base::Value::Dict& object) override;
std::u16string GetObjectDisplayName(const base::Value::Dict& object) override;
// permissions::ObjectPermissionContextBase::PermissionObserver:
void OnPermissionRevoked(const url::Origin& origin) override;
void AddObserver(content::SmartCardDelegate::PermissionObserver* observer);
void RemoveObserver(content::SmartCardDelegate::PermissionObserver* observer);
void RevokeEphemeralPermissions();
void RevokeAllPermissions();
// Checks whether |origin|'s value of |guard_content_settings_type_| is both:
// - set to "allow"
// - set by policy
bool IsAllowlistedByPolicy(const url::Origin& origin) const;
bool CanRequestObjectPermission(const url::Origin& origin) const override;
// The two methods below are overridden to expose a symbolic "All readers"
// device in case of allowlisting via policy.
std::vector<std::unique_ptr<Object>> GetGrantedObjects(
const url::Origin& origin) override;
std::vector<std::unique_ptr<Object>> GetAllGrantedObjects() override;
private:
friend class SmartCardPermissionContextTest;
friend class settings::SmartCardReaderPermissionsSiteSettingsHandlerTest;
friend class PageInfoBubbleViewInteractiveUiTest;
friend class ChromeOsSmartCardDelegateBrowserTest;
friend class site_settings::SiteSettingsHelperChooserExceptionTest;
class OneTimeObserver;
class PowerSuspendObserver;
class ReaderObserver;
bool HasReaderPermission(const url::Origin& origin,
const std::string& reader_name);
// The given permission won't be persisted.
void GrantEphemeralReaderPermission(const url::Origin& origin,
const std::string& reader_name);
void GrantPersistentReaderPermission(const url::Origin& origin,
const std::string& reader_name);
bool HasPersistentReaderPermission(const url::Origin& origin,
const std::string& reader_name);
void RevokeEphemeralPermissionsForReader(const std::string& reader_name);
void RevokeEphemeralPermissionsForOrigin(const url::Origin& origin);
void OnTrackingStarted(
std::optional<std::vector<SmartCardReaderTracker::ReaderInfo>>);
void StopObserving();
void OnPermissionRequestDecided(const url::Origin& origin,
const std::string& reader_name,
RequestReaderPermissionCallback callback,
SmartCardPermissionRequest::Result result);
SmartCardReaderTracker& GetReaderTracker() const;
void RevokeEphemeralPermissionIfLongTimeoutOccured(
const url::Origin& origin,
const std::string& reader_name);
// Set of readers to which an origin has ephemeral access to and times the
// ephemeral permissions should expire.
base::flat_map<url::Origin, base::flat_map<std::string, base::Time>>
ephemeral_grants_with_expiry_;
std::unique_ptr<OneTimeObserver> one_time_observer_;
std::unique_ptr<PowerSuspendObserver> power_suspend_observer_;
std::unique_ptr<ReaderObserver> reader_observer_;
// Instance is owned by this profile.
base::raw_ref<Profile> profile_;
base::ObserverList<content::SmartCardDelegate::PermissionObserver>
permission_observers_;
base::ScopedObservation<
permissions::ObjectPermissionContextBase,
permissions::ObjectPermissionContextBase::PermissionObserver>
permission_observation_{this};
base::WeakPtrFactory<SmartCardPermissionContext> weak_ptr_factory_;
};
#endif // CHROME_BROWSER_SMART_CARD_SMART_CARD_PERMISSION_CONTEXT_H_
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