| /* |
| * Copyright (C) 2020 Sony Interactive Entertainment Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "CurlStream.h" |
| |
| #include "CurlStreamScheduler.h" |
| #include "SocketStreamError.h" |
| |
| #if USE(CURL) |
| |
| namespace WebCore { |
| |
| CurlStream::CurlStream(CurlStreamScheduler& scheduler, CurlStreamID streamID, URL&& url) |
| : m_scheduler(scheduler) |
| , m_streamID(streamID) |
| { |
| ASSERT(!isMainThread()); |
| |
| m_curlHandle = WTF::makeUnique<CurlHandle>(); |
| |
| // Libcurl is not responsible for the protocol handling. It just handles connection. |
| // Only scheme, host and port is required. |
| URL urlForConnection; |
| urlForConnection.setProtocol(url.protocolIs("wss") ? "https" : "http"); |
| urlForConnection.setHostAndPort(url.hostAndPort()); |
| m_curlHandle->setUrl(urlForConnection); |
| |
| m_curlHandle->enableConnectionOnly(); |
| |
| auto errorCode = m_curlHandle->perform(); |
| if (errorCode != CURLE_OK) { |
| notifyFailure(errorCode); |
| return; |
| } |
| |
| m_scheduler.callClientOnMainThread(m_streamID, [streamID = m_streamID](Client& client) { |
| client.didOpen(streamID); |
| }); |
| } |
| |
| CurlStream::~CurlStream() |
| { |
| ASSERT(!isMainThread()); |
| destroyHandle(); |
| } |
| |
| void CurlStream::destroyHandle() |
| { |
| if (!m_curlHandle) |
| return; |
| |
| m_curlHandle = nullptr; |
| } |
| |
| void CurlStream::send(UniqueArray<uint8_t>&& buffer, size_t length) |
| { |
| ASSERT(!isMainThread()); |
| |
| if (!m_curlHandle) |
| return; |
| |
| m_sendBuffers.append(std::make_pair(WTFMove(buffer), length)); |
| } |
| |
| void CurlStream::appendMonitoringFd(fd_set& readfds, fd_set& writefds, fd_set& exceptfds, int& maxfd) |
| { |
| ASSERT(!isMainThread()); |
| |
| if (!m_curlHandle) |
| return; |
| |
| auto socket = m_curlHandle->getActiveSocket(); |
| if (!socket.has_value()) { |
| notifyFailure(socket.error()); |
| return; |
| } |
| |
| FD_SET(*socket, &readfds); |
| FD_SET(*socket, &exceptfds); |
| |
| if (m_sendBuffers.size()) |
| FD_SET(*socket, &writefds); |
| |
| if (maxfd < *socket) |
| maxfd = *socket; |
| } |
| |
| void CurlStream::tryToTransfer(const fd_set& readfds, const fd_set& writefds, const fd_set& exceptfds) |
| { |
| ASSERT(!isMainThread()); |
| |
| if (!m_curlHandle) |
| return; |
| |
| auto socket = m_curlHandle->getActiveSocket(); |
| if (!socket.has_value()) { |
| notifyFailure(socket.error()); |
| return; |
| } |
| |
| if (FD_ISSET(*socket, &readfds) || FD_ISSET(*socket, &exceptfds)) |
| tryToReceive(); |
| |
| if (FD_ISSET(*socket, &writefds)) |
| tryToSend(); |
| } |
| |
| void CurlStream::tryToReceive() |
| { |
| if (!m_curlHandle) |
| return; |
| |
| auto receiveBuffer = makeUniqueArray<uint8_t>(kReceiveBufferSize); |
| size_t bytesReceived = 0; |
| |
| auto errorCode = m_curlHandle->receive(receiveBuffer.get(), kReceiveBufferSize, bytesReceived); |
| if (errorCode != CURLE_OK) { |
| if (errorCode != CURLE_AGAIN) |
| notifyFailure(errorCode); |
| return; |
| } |
| |
| // 0 bytes indicates a closed connection. |
| if (!bytesReceived) |
| destroyHandle(); |
| |
| m_scheduler.callClientOnMainThread(m_streamID, [streamID = m_streamID, buffer = WTFMove(receiveBuffer), length = bytesReceived](Client& client) mutable { |
| client.didReceiveData(streamID, reinterpret_cast<const char*>(buffer.get()), length); |
| }); |
| } |
| |
| void CurlStream::tryToSend() |
| { |
| if (!m_curlHandle || !m_sendBuffers.size()) |
| return; |
| |
| auto& [buffer, length] = m_sendBuffers.first(); |
| size_t bytesSent = 0; |
| |
| auto errorCode = m_curlHandle->send(buffer.get() + m_sendBufferOffset, length - m_sendBufferOffset, bytesSent); |
| if (errorCode != CURLE_OK) { |
| if (errorCode != CURLE_AGAIN) |
| notifyFailure(errorCode); |
| return; |
| } |
| |
| m_sendBufferOffset += bytesSent; |
| |
| if (m_sendBufferOffset >= length) { |
| m_sendBuffers.remove(0); |
| m_sendBufferOffset = 0; |
| } |
| |
| m_scheduler.callClientOnMainThread(m_streamID, [streamID = m_streamID, length = bytesSent](Client& client) { |
| client.didSendData(streamID, length); |
| }); |
| } |
| |
| void CurlStream::notifyFailure(CURLcode errorCode) |
| { |
| destroyHandle(); |
| |
| m_scheduler.callClientOnMainThread(m_streamID, [streamID = m_streamID, errorCode](Client& client) mutable { |
| client.didFail(streamID, errorCode); |
| }); |
| } |
| |
| } |
| |
| #endif |