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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 CONTENT_BROWSER_WEBAUTH_VIRTUAL_FIDO_DISCOVERY_FACTORY_H_
#define CONTENT_BROWSER_WEBAUTH_VIRTUAL_FIDO_DISCOVERY_FACTORY_H_
#include <memory>
#include <set>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "content/browser/webauth/virtual_authenticator_manager_impl.h"
#include "device/fido/fido_discovery_factory.h"
#include "device/fido/virtual_fido_device.h"
namespace device {
class FidoDiscoveryBase;
}
namespace content {
class VirtualAuthenticator;
class VirtualFidoDiscovery;
class VirtualFidoDiscoveryFactory;
// VirtualFidoDiscoveryFactory is instantiated by
// VirtualAuthenticatorManagerImpl. It produces FidoDiscovery instances that
// instantiate a virtual device for each authenticator configured in
// VirtualAuthenticatorManagerImpl.
//
// Its lifetime is limited to the duration of a WebAuthn request. Note that this
// differs from VirtualAuthenticatorManagerImpl which is instantiated and
// destroyed in response to operations on the Virtual Authenticator API.
class VirtualFidoDiscoveryFactory
: public device::FidoDiscoveryFactory,
public VirtualAuthenticatorManagerImpl::Observer {
public:
explicit VirtualFidoDiscoveryFactory(
base::WeakPtr<VirtualAuthenticatorManagerImpl> authenticator_manager);
VirtualFidoDiscoveryFactory(const VirtualFidoDiscoveryFactory&) = delete;
VirtualFidoDiscoveryFactory& operator=(const VirtualFidoDiscoveryFactory&) =
delete;
~VirtualFidoDiscoveryFactory() override;
// device::FidoDiscoveryFactory:
std::vector<std::unique_ptr<::device::FidoDiscoveryBase>> Create(
device::FidoTransportProtocol transport) override;
bool IsTestOverride() override;
#if BUILDFLAG(IS_WIN)
std::unique_ptr<device::FidoDiscoveryBase>
MaybeCreateWinWebAuthnApiDiscovery() override;
#endif
private:
// VirtualAuthenticatorManagerImpl::Observer:
void AuthenticatorAdded(VirtualAuthenticator*) override;
void AuthenticatorRemoved(const std::string& authenticator_id) override;
// VirtualAuthenticatorManagerImpl is held weakly because the virtual
// authenticator environment may be disabled in during an ongoing WebAuthn
// request, in which case the manager instance would be freed, while the
// discovery factory and its associated FidoDiscovery intances live on until
// the WebAuthn request completes.
base::WeakPtr<VirtualAuthenticatorManagerImpl> weak_authenticator_manager_;
// Individual discoveries are owned by the FidoRequestHandler.
std::set<raw_ptr<VirtualFidoDiscovery, SetExperimental>> discoveries_;
};
} // namespace content
#endif // CONTENT_BROWSER_WEBAUTH_VIRTUAL_FIDO_DISCOVERY_FACTORY_H_
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