mirror of
https://github.com/DrKLO/Telegram.git
synced 2024-12-23 15:00:50 +01:00
108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
/*
|
|
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef API_DTLS_TRANSPORT_INTERFACE_H_
|
|
#define API_DTLS_TRANSPORT_INTERFACE_H_
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
|
|
#include "absl/types/optional.h"
|
|
#include "api/ice_transport_interface.h"
|
|
#include "api/rtc_error.h"
|
|
#include "api/scoped_refptr.h"
|
|
#include "rtc_base/ref_count.h"
|
|
#include "rtc_base/ssl_certificate.h"
|
|
#include "rtc_base/system/rtc_export.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// States of a DTLS transport, corresponding to the JS API specification.
|
|
// http://w3c.github.io/webrtc-pc/#dom-rtcdtlstransportstate
|
|
enum class DtlsTransportState {
|
|
kNew, // Has not started negotiating yet.
|
|
kConnecting, // In the process of negotiating a secure connection.
|
|
kConnected, // Completed negotiation and verified fingerprints.
|
|
kClosed, // Intentionally closed.
|
|
kFailed, // Failure due to an error or failing to verify a remote
|
|
// fingerprint.
|
|
kNumValues
|
|
};
|
|
|
|
// This object gives snapshot information about the changeable state of a
|
|
// DTLSTransport.
|
|
class RTC_EXPORT DtlsTransportInformation {
|
|
public:
|
|
DtlsTransportInformation();
|
|
explicit DtlsTransportInformation(DtlsTransportState state);
|
|
DtlsTransportInformation(
|
|
DtlsTransportState state,
|
|
absl::optional<int> tls_version,
|
|
absl::optional<int> ssl_cipher_suite,
|
|
absl::optional<int> srtp_cipher_suite,
|
|
std::unique_ptr<rtc::SSLCertChain> remote_ssl_certificates);
|
|
// Copy and assign
|
|
DtlsTransportInformation(const DtlsTransportInformation& c);
|
|
DtlsTransportInformation& operator=(const DtlsTransportInformation& c);
|
|
// Move
|
|
DtlsTransportInformation(DtlsTransportInformation&& other) = default;
|
|
DtlsTransportInformation& operator=(DtlsTransportInformation&& other) =
|
|
default;
|
|
|
|
DtlsTransportState state() const { return state_; }
|
|
absl::optional<int> tls_version() const { return tls_version_; }
|
|
absl::optional<int> ssl_cipher_suite() const { return ssl_cipher_suite_; }
|
|
absl::optional<int> srtp_cipher_suite() const { return srtp_cipher_suite_; }
|
|
// The accessor returns a temporary pointer, it does not release ownership.
|
|
const rtc::SSLCertChain* remote_ssl_certificates() const {
|
|
return remote_ssl_certificates_.get();
|
|
}
|
|
|
|
private:
|
|
DtlsTransportState state_;
|
|
absl::optional<int> tls_version_;
|
|
absl::optional<int> ssl_cipher_suite_;
|
|
absl::optional<int> srtp_cipher_suite_;
|
|
std::unique_ptr<rtc::SSLCertChain> remote_ssl_certificates_;
|
|
};
|
|
|
|
class DtlsTransportObserverInterface {
|
|
public:
|
|
// This callback carries information about the state of the transport.
|
|
// The argument is a pass-by-value snapshot of the state.
|
|
virtual void OnStateChange(DtlsTransportInformation info) = 0;
|
|
// This callback is called when an error occurs, causing the transport
|
|
// to go to the kFailed state.
|
|
virtual void OnError(RTCError error) = 0;
|
|
|
|
protected:
|
|
virtual ~DtlsTransportObserverInterface() = default;
|
|
};
|
|
|
|
// A DTLS transport, as represented to the outside world.
|
|
// This object is created on the network thread, and can only be
|
|
// accessed on that thread, except for functions explicitly marked otherwise.
|
|
// References can be held by other threads, and destruction can therefore
|
|
// be initiated by other threads.
|
|
class DtlsTransportInterface : public rtc::RefCountInterface {
|
|
public:
|
|
// Returns a pointer to the ICE transport that is owned by the DTLS transport.
|
|
virtual rtc::scoped_refptr<IceTransportInterface> ice_transport() = 0;
|
|
// Returns information on the state of the DtlsTransport.
|
|
// This function can be called from other threads.
|
|
virtual DtlsTransportInformation Information() = 0;
|
|
// Observer management.
|
|
virtual void RegisterObserver(DtlsTransportObserverInterface* observer) = 0;
|
|
virtual void UnregisterObserver() = 0;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // API_DTLS_TRANSPORT_INTERFACE_H_
|