bool MainThreadWebSocketChannel::processOneItemFromBuffer()
{
ASSERT(!m_suspended);
ASSERT(m_client);
ASSERT(!m_buffer.isEmpty());
WTF_LOG(Network, "MainThreadWebSocketChannel %p processBuffer() Receive buffer has %lu bytes", this, static_cast<unsigned long>(m_buffer.size()));
if (m_shouldDiscardReceivedData)
return false;
if (m_receivedClosingHandshake) {
skipBuffer(m_buffer.size());
return false;
}
if (m_handshake->mode() == WebSocketHandshake::Incomplete) {
int headerLength = m_handshake->readServerHandshake(m_buffer.data(), m_buffer.size());
if (headerLength <= 0)
return false;
if (m_handshake->mode() == WebSocketHandshake::Connected) {
if (m_identifier) {
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "WebSocketReceiveHandshakeResponse", "data", InspectorWebSocketEvent::data(m_document, m_identifier));
// FIXME(361045): remove InspectorInstrumentation calls once DevTools Timeline migrates to tracing.
InspectorInstrumentation::didReceiveWebSocketHandshakeResponse(m_document, m_identifier, 0, &m_handshake->serverHandshakeResponse());
}
if (m_deflateFramer.enabled() && m_document) {
const String message = "WebSocket extension \"x-webkit-deflate-frame\" is deprecated";
m_document->addConsoleMessage(ConsoleMessage::create(JSMessageSource, WarningMessageLevel, message, m_sourceURLAtConstruction, m_lineNumberAtConstruction));
}
WTF_LOG(Network, "MainThreadWebSocketChannel %p Connected", this);
skipBuffer(headerLength);
String subprotocol = m_handshake->serverWebSocketProtocol();
String extensions = m_handshake->acceptedExtensions();
m_client->didConnect(subprotocol.isNull() ? "" : subprotocol, extensions.isNull() ? "" : extensions);
WTF_LOG(Network, "MainThreadWebSocketChannel %p %lu bytes remaining in m_buffer", this, static_cast<unsigned long>(m_buffer.size()));
return !m_buffer.isEmpty();
}
ASSERT(m_handshake->mode() == WebSocketHandshake::Failed);
WTF_LOG(Network, "MainThreadWebSocketChannel %p Connection failed", this);
skipBuffer(headerLength);
m_shouldDiscardReceivedData = true;
failAsError(m_handshake->failureReason());
return false;
}
if (m_handshake->mode() != WebSocketHandshake::Connected)
return false;
return processFrame();
}
bool WebSocketChannel::processBuffer()
{
ASSERT(!m_suspended);
ASSERT(m_client);
ASSERT(!m_buffer.isEmpty());
LOG(Network, "WebSocketChannel %p processBuffer() Receive buffer has %u bytes", this, static_cast<unsigned>(m_buffer.size()));
if (m_shouldDiscardReceivedData)
return false;
if (m_receivedClosingHandshake) {
skipBuffer(m_buffer.size());
return false;
}
Ref<WebSocketChannel> protectedThis(*this); // The client can close the channel, potentially removing the last reference.
if (m_handshake->mode() == WebSocketHandshake::Incomplete) {
int headerLength = m_handshake->readServerHandshake(m_buffer.data(), m_buffer.size());
if (headerLength <= 0)
return false;
if (m_handshake->mode() == WebSocketHandshake::Connected) {
if (m_identifier)
InspectorInstrumentation::didReceiveWebSocketHandshakeResponse(m_document, m_identifier, m_handshake->serverHandshakeResponse());
if (!m_handshake->serverSetCookie().isEmpty()) {
if (m_document && cookiesEnabled(*m_document)) {
// Exception (for sandboxed documents) ignored.
m_document->setCookie(m_handshake->serverSetCookie());
}
}
// FIXME: handle set-cookie2.
LOG(Network, "WebSocketChannel %p Connected", this);
skipBuffer(headerLength);
m_client->didConnect();
LOG(Network, "WebSocketChannel %p %u bytes remaining in m_buffer", this, static_cast<unsigned>(m_buffer.size()));
return !m_buffer.isEmpty();
}
ASSERT(m_handshake->mode() == WebSocketHandshake::Failed);
LOG(Network, "WebSocketChannel %p Connection failed", this);
skipBuffer(headerLength);
m_shouldDiscardReceivedData = true;
fail(m_handshake->failureReason());
return false;
}
if (m_handshake->mode() != WebSocketHandshake::Connected)
return false;
return processFrame();
}
bool WebSocketChannel::processBuffer()
{
ASSERT(!m_suspended);
ASSERT(m_client);
ASSERT(m_buffer);
if (m_shouldDiscardReceivedData)
return false;
/// M: HTML5 web socket @{
RefPtr<WebSocketChannel> protect(this); // The client can close the channel, potentially removing the last reference.
if (m_handshake->mode() == WebSocketHandshake::Incomplete) {
int headerLength = m_handshake->readServerHandshake(m_buffer, m_bufferSize);
if (headerLength <= 0)
return false;
if (m_handshake->mode() == WebSocketHandshake::Connected) {
if (m_identifier)
InspectorInstrumentation::didReceiveWebSocketHandshakeResponse(m_context, m_identifier, m_handshake->serverHandshakeResponse());
if (!m_handshake->serverSetCookie().isEmpty()) {
if (m_context->isDocument()) {
Document* document = static_cast<Document*>(m_context);
if (cookiesEnabled(document)) {
ExceptionCode ec; // Exception (for sandboxed documents) ignored.
document->setCookie(m_handshake->serverSetCookie(), ec);
}
}
}
// FIXME: handle set-cookie2.
LOG(Network, "WebSocketChannel %p connected", this);
skipBuffer(headerLength);
m_client->didConnect();
LOG(Network, "remaining in read buf %lu", static_cast<unsigned long>(m_bufferSize));
return m_buffer;
}
LOG(Network, "WebSocketChannel %p connection failed", this);
skipBuffer(headerLength);
m_shouldDiscardReceivedData = true;
if (!m_closed)
m_handle->close();
return false;
}
if (m_handshake->mode() != WebSocketHandshake::Connected)
return false;
/// @}
/// M: HTML5 web socket
return processFrame();
}
void WebSocketChannel::fail(const String& reason)
{
LOG(Network, "WebSocketChannel %p fail() reason='%s'", this, reason.utf8().data());
ASSERT(!m_suspended);
if (m_document) {
InspectorInstrumentation::didReceiveWebSocketFrameError(m_document, m_identifier, reason);
String consoleMessage;
if (m_handshake)
consoleMessage = makeString("WebSocket connection to '", m_handshake->url().stringCenterEllipsizedToLength(), "' failed: ", reason);
else
consoleMessage = makeString("WebSocket connection failed: ", reason);
m_document->addConsoleMessage(MessageSource::Network, MessageLevel::Error, consoleMessage);
}
// Hybi-10 specification explicitly states we must not continue to handle incoming data
// once the WebSocket connection is failed (section 7.1.7).
Ref<WebSocketChannel> protectedThis(*this); // The client can close the channel, potentially removing the last reference.
m_shouldDiscardReceivedData = true;
if (!m_buffer.isEmpty())
skipBuffer(m_buffer.size()); // Save memory.
m_deflateFramer.didFail();
m_hasContinuousFrame = false;
m_continuousFrameData.clear();
m_client->didReceiveMessageError();
if (m_handle && !m_closed)
m_handle->disconnect(); // Will call didClose().
// We should be closed by now, but if we never got a handshake then we never even opened.
ASSERT(m_closed || !m_handshake);
}
void MainThreadWebSocketChannel::fail(const String& reason, MessageLevel level, const String& sourceURL, unsigned lineNumber)
{
WTF_LOG(Network, "MainThreadWebSocketChannel %p fail() reason='%s'", this, reason.utf8().data());
if (m_document) {
InspectorInstrumentation::didReceiveWebSocketFrameError(m_document, m_identifier, reason);
const String message = "WebSocket connection to '" + m_handshake->url().elidedString() + "' failed: " + reason;
m_document->addConsoleMessage(ConsoleMessage::create(JSMessageSource, level, message, sourceURL, lineNumber));
}
// Hybi-10 specification explicitly states we must not continue to handle incoming data
// once the WebSocket connection is failed (section 7.1.7).
m_shouldDiscardReceivedData = true;
if (!m_buffer.isEmpty())
skipBuffer(m_buffer.size()); // Save memory.
m_deflateFramer.didFail();
m_perMessageDeflate.didFail();
m_hasContinuousFrame = false;
m_continuousFrameData.clear();
callDidReceiveMessageError();
if (m_state != ChannelClosed)
disconnectHandle(); // Will call didCloseSocketStream().
}
bool WebSocketChannel::processBuffer()
{
ASSERT(!m_suspended);
ASSERT(m_client);
ASSERT(m_buffer);
if (m_shouldDiscardReceivedData)
return false;
if (m_handshake.mode() == WebSocketHandshake::Incomplete) {
int headerLength = m_handshake.readServerHandshake(m_buffer, m_bufferSize);
if (headerLength <= 0)
return false;
if (m_handshake.mode() == WebSocketHandshake::Connected) {
if (m_identifier)
InspectorInstrumentation::didReceiveWebSocketHandshakeResponse(m_context, m_identifier, m_handshake.serverHandshakeResponse());
if (!m_handshake.serverSetCookie().isEmpty()) {
if (m_context->isDocument()) {
Document* document = static_cast<Document*>(m_context);
if (cookiesEnabled(document)) {
ExceptionCode ec; // Exception (for sandboxed documents) ignored.
document->setCookie(m_handshake.serverSetCookie(), ec);
}
}
}
// FIXME: handle set-cookie2.
LOG(Network, "WebSocketChannel %p connected", this);
skipBuffer(headerLength);
m_client->didConnect();
LOG(Network, "remaining in read buf %lu", static_cast<unsigned long>(m_bufferSize));
return m_buffer;
}
LOG(Network, "WebSocketChannel %p connection failed", this);
skipBuffer(headerLength);
m_shouldDiscardReceivedData = true;
if (!m_closed)
m_handle->close();
return false;
}
if (m_handshake.mode() != WebSocketHandshake::Connected)
return false;
const char* nextFrame = m_buffer;
const char* p = m_buffer;
const char* end = p + m_bufferSize;
unsigned char frameByte = static_cast<unsigned char>(*p++);
if ((frameByte & 0x80) == 0x80) {
size_t length = 0;
bool errorFrame = false;
while (p < end) {
if (length > std::numeric_limits<size_t>::max() / 128) {
LOG(Network, "frame length overflow %lu", static_cast<unsigned long>(length));
errorFrame = true;
break;
}
size_t newLength = length * 128;
unsigned char msgByte = static_cast<unsigned char>(*p);
unsigned int lengthMsgByte = msgByte & 0x7f;
if (newLength > std::numeric_limits<size_t>::max() - lengthMsgByte) {
LOG(Network, "frame length overflow %lu+%u", static_cast<unsigned long>(newLength), lengthMsgByte);
errorFrame = true;
break;
}
newLength += lengthMsgByte;
if (newLength < length) { // sanity check
LOG(Network, "frame length integer wrap %lu->%lu", static_cast<unsigned long>(length), static_cast<unsigned long>(newLength));
errorFrame = true;
break;
}
length = newLength;
++p;
if (!(msgByte & 0x80))
break;
}
if (p + length < p) {
LOG(Network, "frame buffer pointer wrap %p+%lu->%p", p, static_cast<unsigned long>(length), p + length);
errorFrame = true;
}
if (errorFrame) {
skipBuffer(m_bufferSize); // Save memory.
m_shouldDiscardReceivedData = true;
if (!m_client)
return false;
m_client->didReceiveMessageError();
if (!m_closed)
m_handle->close();
return false;
}
ASSERT(p + length >= p);
if (p + length < end) {
p += length;
nextFrame = p;
ASSERT(nextFrame > m_buffer);
skipBuffer(nextFrame - m_buffer);
m_client->didReceiveMessageError();
return m_buffer;
}
return false;
}
const char* msgStart = p;
while (p < end && *p != '\xff')
++p;
if (p < end && *p == '\xff') {
int msgLength = p - msgStart;
++p;
nextFrame = p;
if (frameByte == 0x00) {
String msg = String::fromUTF8(msgStart, msgLength);
skipBuffer(nextFrame - m_buffer);
m_client->didReceiveMessage(msg);
} else {
skipBuffer(nextFrame - m_buffer);
m_client->didReceiveMessageError();
}
return m_buffer;
}
return false;
}
