bool DImgFilterGenerator::isSupported(const QString& filterIdentifier, int version)
{
if (isSupported(filterIdentifier))
{
return supportedVersions(filterIdentifier).contains(version);
}
return false;
}
/*!
\internal
*/
void QWebSocketServerPrivate::handshakeReceived()
{
if (Q_UNLIKELY(!currentSender)) {
return;
}
QTcpSocket *pTcpSocket = qobject_cast<QTcpSocket*>(currentSender->sender);
if (Q_UNLIKELY(!pTcpSocket)) {
return;
}
//When using Google Chrome the handshake in received in two parts.
//Therefore, the readyRead signal is emitted twice.
//This is a guard against the BEAST attack.
//See: https://www.imperialviolet.org/2012/01/15/beastfollowup.html
//For Safari, the handshake is delivered at once
//FIXME: For FireFox, the readyRead signal is never emitted
//This is a bug in FireFox (see https://bugzilla.mozilla.org/show_bug.cgi?id=594502)
if (!pTcpSocket->canReadLine()) {
return;
}
disconnect(pTcpSocket, &QTcpSocket::readyRead,
this, &QWebSocketServerPrivate::handshakeReceived);
Q_Q(QWebSocketServer);
bool success = false;
bool isSecure = false;
if (m_pendingConnections.length() >= maxPendingConnections()) {
pTcpSocket->close();
pTcpSocket->deleteLater();
setError(QWebSocketProtocol::CloseCodeAbnormalDisconnection,
QWebSocketServer::tr("Too many pending connections."));
return;
}
QWebSocketHandshakeRequest request(pTcpSocket->peerPort(), isSecure);
QTextStream textStream(pTcpSocket);
request.readHandshake(textStream, MAX_HEADERLINE_LENGTH, MAX_HEADERLINES);
if (request.isValid()) {
QWebSocketCorsAuthenticator corsAuthenticator(request.origin());
Q_EMIT q->originAuthenticationRequired(&corsAuthenticator);
QWebSocketHandshakeResponse response(request,
m_serverName,
corsAuthenticator.allowed(),
supportedVersions(),
supportedProtocols(),
supportedExtensions());
if (response.isValid()) {
QTextStream httpStream(pTcpSocket);
httpStream << response;
httpStream.flush();
if (response.canUpgrade()) {
QWebSocket *pWebSocket = QWebSocketPrivate::upgradeFrom(pTcpSocket,
request,
response);
if (pWebSocket) {
addPendingConnection(pWebSocket);
Q_EMIT q->newConnection();
success = true;
} else {
setError(QWebSocketProtocol::CloseCodeAbnormalDisconnection,
QWebSocketServer::tr("Upgrade to WebSocket failed."));
}
}
else {
setError(response.error(), response.errorString());
}
} else {
setError(QWebSocketProtocol::CloseCodeProtocolError,
QWebSocketServer::tr("Invalid response received."));
}
}
if (!success) {
pTcpSocket->close();
}
}
