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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PLATFORM_API_TLS_CONNECTION_FACTORY_H_
#define PLATFORM_API_TLS_CONNECTION_FACTORY_H_
#include <stdint.h>
#include <memory>
#include <vector>
#include "platform/base/ip_address.h"
namespace openscreen {
class TaskRunner;
class TlsConnection;
struct TlsConnectOptions;
struct TlsCredentials;
struct TlsListenOptions;
// We expect a single factory to be able to handle an arbitrary number of
// calls using the same client and task runner.
class TlsConnectionFactory {
public:
// Client callbacks are ran on the provided TaskRunner.
class Client {
public:
// Provides a new |connection| that resulted from listening on the local
// socket. |der_x509_peer_cert| is the DER-encoded X509 certificate from the
// peer if present, or empty if the peer didn't provide one.
virtual void OnAccepted(TlsConnectionFactory* factory,
std::vector<uint8_t> der_x509_peer_cert,
std::unique_ptr<TlsConnection> connection) = 0;
// Provides a new |connection| that resulted from connecting to a remote
// endpoint. |der_x509_peer_cert| is the DER-encoded X509 certificate from
// the peer.
virtual void OnConnected(TlsConnectionFactory* factory,
std::vector<uint8_t> der_x509_peer_cert,
std::unique_ptr<TlsConnection> connection) = 0;
virtual void OnConnectionFailed(TlsConnectionFactory* factory,
const IPEndpoint& remote_address) = 0;
// Called when a non-recoverable error occurs.
virtual void OnError(TlsConnectionFactory* factory, Error error) = 0;
};
// The connection factory requires a client for yielding creation results
// asynchronously, as well as a task runner it can use to for running
// callbacks both on the factory and on created TlsConnection instances.
static std::unique_ptr<TlsConnectionFactory> CreateFactory(
Client* client,
TaskRunner* task_runner);
virtual ~TlsConnectionFactory();
// Fires an OnConnected or OnConnectionFailed event.
virtual void Connect(const IPEndpoint& remote_address,
const TlsConnectOptions& options) = 0;
// Set the TlsCredentials used for listening for new connections. Currently,
// having different certificates on different address is not supported. This
// must be called before the first call to Listen.
virtual void SetListenCredentials(const TlsCredentials& credentials) = 0;
// Fires an OnAccepted or OnConnectionFailed event.
virtual void Listen(const IPEndpoint& local_address,
const TlsListenOptions& options) = 0;
protected:
TlsConnectionFactory();
};
} // namespace openscreen
#endif // PLATFORM_API_TLS_CONNECTION_FACTORY_H_
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