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// Copyright 2018 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.
#include "osp/impl/quic/quic_connection_impl.h"
#include <limits>
#include <memory>
#include "absl/types/optional.h"
#include "osp/impl/quic/quic_connection_factory_impl.h"
#include "platform/base/error.h"
#include "third_party/chromium_quic/src/net/third_party/quic/platform/impl/quic_chromium_clock.h"
#include "util/osp_logging.h"
#include "util/trace_logging.h"
namespace openscreen {
namespace osp {
UdpTransport::UdpTransport(UdpSocket* socket, const IPEndpoint& destination)
: socket_(socket), destination_(destination) {
OSP_DCHECK(socket_);
}
UdpTransport::UdpTransport(UdpTransport&&) noexcept = default;
UdpTransport::~UdpTransport() = default;
UdpTransport& UdpTransport::operator=(UdpTransport&&) noexcept = default;
int UdpTransport::Write(const char* buffer,
size_t buffer_length,
const PacketInfo& info) {
TRACE_SCOPED(TraceCategory::kQuic, "UdpTransport::Write");
socket_->SendMessage(buffer, buffer_length, destination_);
OSP_DCHECK_LE(buffer_length,
static_cast<size_t>(std::numeric_limits<int>::max()));
return static_cast<int>(buffer_length);
}
QuicStreamImpl::QuicStreamImpl(QuicStream::Delegate* delegate,
::quic::QuartcStream* stream)
: QuicStream(delegate, stream->id()), stream_(stream) {
stream_->SetDelegate(this);
}
QuicStreamImpl::~QuicStreamImpl() = default;
void QuicStreamImpl::Write(const uint8_t* data, size_t data_size) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicStreamImpl::Write");
OSP_DCHECK(!stream_->write_side_closed());
stream_->WriteOrBufferData(
::quic::QuicStringPiece(reinterpret_cast<const char*>(data), data_size),
false, nullptr);
}
void QuicStreamImpl::CloseWriteEnd() {
TRACE_SCOPED(TraceCategory::kQuic, "QuicStreamImpl::CloseWriteEnd");
if (!stream_->write_side_closed())
stream_->FinishWriting();
}
void QuicStreamImpl::OnReceived(::quic::QuartcStream* stream,
const char* data,
size_t data_size) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicStreamImpl::OnReceived");
delegate_->OnReceived(this, data, data_size);
}
void QuicStreamImpl::OnClose(::quic::QuartcStream* stream) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicStreamImpl::OnClose");
delegate_->OnClose(stream->id());
}
void QuicStreamImpl::OnBufferChanged(::quic::QuartcStream* stream) {}
// Passes a received UDP packet to the QUIC implementation. If this contains
// any stream data, it will be passed automatically to the relevant
// QuicStream::Delegate objects.
void QuicConnectionImpl::OnRead(UdpSocket* socket, ErrorOr<UdpPacket> data) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicConnectionImpl::OnRead");
if (data.is_error()) {
TRACE_SET_RESULT(data.error());
return;
}
session_->OnTransportReceived(
reinterpret_cast<const char*>(data.value().data()), data.value().size());
}
void QuicConnectionImpl::OnSendError(UdpSocket* socket, Error error) {
// TODO(crbug.com/openscreen/67): Implement this method.
OSP_UNIMPLEMENTED();
}
void QuicConnectionImpl::OnError(UdpSocket* socket, Error error) {
// TODO(crbug.com/openscreen/67): Implement this method.
OSP_UNIMPLEMENTED();
}
QuicConnectionImpl::QuicConnectionImpl(
QuicConnectionFactoryImpl* parent_factory,
QuicConnection::Delegate* delegate,
std::unique_ptr<UdpTransport> udp_transport,
std::unique_ptr<::quic::QuartcSession> session)
: QuicConnection(delegate),
parent_factory_(parent_factory),
session_(std::move(session)),
udp_transport_(std::move(udp_transport)) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicConnectionImpl::QuicConnectionImpl");
session_->SetDelegate(this);
session_->OnTransportCanWrite();
session_->StartCryptoHandshake();
}
QuicConnectionImpl::~QuicConnectionImpl() = default;
std::unique_ptr<QuicStream> QuicConnectionImpl::MakeOutgoingStream(
QuicStream::Delegate* delegate) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicConnectionImpl::MakeOutgoingStream");
::quic::QuartcStream* stream = session_->CreateOutgoingDynamicStream();
return std::make_unique<QuicStreamImpl>(delegate, stream);
}
void QuicConnectionImpl::Close() {
TRACE_SCOPED(TraceCategory::kQuic, "QuicConnectionImpl::Close");
session_->CloseConnection("closed");
}
void QuicConnectionImpl::OnCryptoHandshakeComplete() {
TRACE_SCOPED(TraceCategory::kQuic,
"QuicConnectionImpl::OnCryptoHandshakeComplete");
delegate_->OnCryptoHandshakeComplete(session_->connection_id());
}
void QuicConnectionImpl::OnIncomingStream(::quic::QuartcStream* stream) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicConnectionImpl::OnIncomingStream");
auto public_stream = std::make_unique<QuicStreamImpl>(
delegate_->NextStreamDelegate(session_->connection_id(), stream->id()),
stream);
streams_.push_back(public_stream.get());
delegate_->OnIncomingStream(session_->connection_id(),
std::move(public_stream));
}
void QuicConnectionImpl::OnConnectionClosed(
::quic::QuicErrorCode error_code,
const ::quic::QuicString& error_details,
::quic::ConnectionCloseSource source) {
TRACE_SCOPED(TraceCategory::kQuic, "QuicConnectionImpl::OnConnectionClosed");
parent_factory_->OnConnectionClosed(this);
delegate_->OnConnectionClosed(session_->connection_id());
}
} // namespace osp
} // namespace openscreen
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