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/*
* Copyright (C) 2013, 2014, 2015 by the Konclude Developer Team.
*
* This file is part of the reasoning system Konclude.
* For details and support, see <http://konclude.com/>.
*
* Konclude is free software: you can redistribute it and/or modify it under
* the terms of version 2.1 of the GNU Lesser General Public License (LGPL2.1)
* as published by the Free Software Foundation.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Konclude. If not, see <http://www.gnu.org/licenses/>.
*
* Konclude is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more
* details, see GNU Lesser General Public License.
*
*/
#include "COWLlinkHttpConnectionHandlerProcessor.h"
namespace Konclude {
namespace Control {
namespace Interface {
namespace OWLlink {
COWLlinkHttpConnectionHandlerProcessor::COWLlinkHttpConnectionHandlerProcessor(CConfiguration* loaderConfig, CQtHttpConnectionHandlerReleaser* releaser) : COWLlinkProcessor(false) {
mReleaser = releaser;
mLoaderConfig = loaderConfig;
reasonerCommander = CConfigManagerReader::readCommanderManagerConfig(mLoaderConfig);
mSocket = nullptr;
mQueued = false;
mProcessingCommand = nullptr;
startThread();
mThreadStartedSemaphore.acquire(1);
}
COWLlinkHttpConnectionHandlerProcessor::~COWLlinkHttpConnectionHandlerProcessor() {
}
void COWLlinkHttpConnectionHandlerProcessor::threadStarted() {
COWLlinkProcessor::threadStarted();
mParser = new CQtHttpRequestBodyOnlyParser();
mSocket = new QTcpSocket();
mSocket->moveToThread(this);
mProcessingRequest = false;
mProcessMoreRead = false;
connect(mSocket,SIGNAL(readyRead()),this,SLOT(connectionRead()));
connect(mSocket,SIGNAL(disconnected()),this,SLOT(connectionDisconnect()));
mThreadStartedSemaphore.release(1);
}
void COWLlinkHttpConnectionHandlerProcessor::threadStopped() {
COWLlinkProcessor::threadStopped();
mSocket->close();
delete mSocket;
delete mParser;
}
bool COWLlinkHttpConnectionHandlerProcessor::handleIncomingConnection(int socketDescriptor) {
postEvent(new CHandleIncomingHttpConnectionEvent(socketDescriptor));
return true;
}
bool COWLlinkHttpConnectionHandlerProcessor::isHandlerQueued() {
return mQueued;
}
COWLlinkHttpConnectionHandlerProcessor* COWLlinkHttpConnectionHandlerProcessor::setHandlerQueued(bool queued) {
mQueued = queued;
return this;
}
bool COWLlinkHttpConnectionHandlerProcessor::processCustomsEvents(QEvent::Type type, CCustomEvent *event) {
if (COWLlinkProcessor::processCustomsEvents(type,event)) {
return true;
} else {
if (type == CConnectionReadyReadEvent::EVENTTYPE) {
CConnectionReadyReadEvent* crre = (CConnectionReadyReadEvent*)event;
if (!mProcessingRequest) {
if (!mParser->readFromDevice(mSocket)) {
// error
QString errorString = QString("HTTP/1.1 400 error parsing request\r\nConnection: close\r\n\r\n400 Parsing error: %1\r\n").arg(mParser->getHttpRequestParsingErrorString());
LOG(INFO,"::Konclude::Control::Interface::OWLlink::OWLlinkHTTPConnectionProcessor",logTr("Error parsing HTTP request, '%1'.").arg(mParser->getHttpRequestParsingErrorString()),this);
mSocket->write(errorString.toLocal8Bit());
mSocket->disconnectFromHost();
}
if (mParser->hasHttpRequestParsingCompleted()) {
mProcessingRequest = true;
mProcessingByteArray = mParser->takeBodyData();
if (mProcessingByteArray != 0) {
LOG(INFO,"::Konclude::Control::Interface::OWLlink::OWLlinkHTTPConnectionProcessor",logTr("HTTP request successfully parsed, %1 Bytes received.").arg(mProcessingByteArray->count()),this);
COWLlinkQtXMLCommandParser *owllinkCommandParser = new COWLlinkQtXMLCommandParser();
mOwllinkInterpreter = new COWLLinkRecordInterpreter(preSynchronizer,mLoaderConfig);
defaultCommandDelegater = mOwllinkInterpreter;
CParseOWLlinkCommandsCommand *parseCommand = new CParseOWLlinkCommandsCommand(mProcessingByteArray,mSocket->peerAddress().toString());
parseCommand->setRecorder(mOwllinkInterpreter);
parseCommand->setReportErrorFromSubCommands(false);
CCommandProcessedCallbackEvent *proComm = new CCommandProcessedCallbackEvent(this,parseCommand);
parseCommand->addProcessedCallback(proComm);
owllinkCommandParser->realizeCommand(parseCommand,mOwllinkInterpreter);
mProcessingCommand = parseCommand;
delete owllinkCommandParser;
delete mProcessingByteArray;
} else {
// invalid request
QString koncludeString = QString("%1 %2").arg(CKoncludeInfo::getKoncludeName()).arg(CKoncludeInfo::getKoncludeVersionString());
sendData(QString("<h2>%1 OWLlink Sever</h2><p>This response is generated from Konclude's OWLlink server for invalid OWLlink requests. Please make sure that the OWLlink request is appended in OWL 2 XML serialisation as content (with correct Content-Length) of your HTTP request. See <a href=\"http://konclude.com\">konclude.com</a> for help and further information.</p>").arg(koncludeString).toLocal8Bit());
mProcessingRequest = false;
if (mParser->hasRequestedCloseConnection()) {
mSocket->disconnectFromHost();
} else if (mProcessMoreRead) {
mProcessMoreRead = false;
connectionRead();
}
mParser->reset();
}
}
}
return true;
} else if (type == CConnectionDisconnectedEvent::EVENTTYPE) {
CConnectionDisconnectedEvent* cde = (CConnectionDisconnectedEvent*)event;
mParser->reset();
mProcessMoreRead = false;
if (!mProcessingRequest) {
mHandlerBusy = false;
}
mReleaser->releaseConnectionHandler(this);
return true;
} else if (type == CHandleIncomingHttpConnectionEvent::EVENTTYPE) {
CHandleIncomingHttpConnectionEvent* hihc = (CHandleIncomingHttpConnectionEvent*)event;
cint64 socketDescriptor = hihc->getSocketDescriptor();
LOG(INFO,"::Konclude::Control::Interface::OWLlink::OWLlinkHTTPConnectionProcessor",logTr("Start processing new incoming connection."),this);
mSocket->setSocketDescriptor(socketDescriptor);
mHandlerBusy = true;
return true;
}
}
return false;
}
COWLlinkProcessor* COWLlinkHttpConnectionHandlerProcessor::initializeOWLlinkContent() {
return this;
}
COWLlinkProcessor* COWLlinkHttpConnectionHandlerProcessor::sendData(const QByteArray& dataArray) {
if (mSocket->state() == QTcpSocket::ConnectedState) {
QString connectionString = QString("Connection: ");
if (mParser->hasRequestedCloseConnection()) {
connectionString += QString("close");
} else {
connectionString += QString("keep-alive");
}
QString serverString = QString("Server: %1 %2").arg(CKoncludeInfo::getKoncludeName()).arg(CKoncludeInfo::getKoncludeVersionString());
QString responseHeadString = QString("HTTP/1.1 200 OK\r\n%1\r\n%2\r\nContent-Length: %3\r\n\r\n").arg(serverString).arg(connectionString).arg(dataArray.length());
mSocket->write(responseHeadString.toLocal8Bit());
mSocket->write(dataArray);
LOG(INFO,"::Konclude::Control::Interface::OWLlink::OWLlinkHTTPConnectionProcessor",logTr("HTTP request successfully processed, %1 Bytes sent.").arg(dataArray.count()),this);
} else {
LOG(INFO,"::Konclude::Control::Interface::OWLlink::OWLlinkHTTPConnectionProcessor",logTr("HTTP request successfully processed, but connection already closed."),this);
}
return this;
}
COWLlinkProcessor* COWLlinkHttpConnectionHandlerProcessor::concludeOWLlinkContent() {
sendData(mOwllinkInterpreter->getByteArray());
delete mOwllinkInterpreter;
delete mProcessingCommand;
mProcessingCommand = nullptr;
mOwllinkInterpreter = nullptr;
mProcessingRequest = false;
if (mParser->hasRequestedCloseConnection()) {
mSocket->disconnectFromHost();
} else if (mProcessMoreRead) {
mProcessMoreRead = false;
connectionRead();
}
mParser->reset();
return this;
}
void COWLlinkHttpConnectionHandlerProcessor::connectionRead() {
postEvent(new CConnectionReadyReadEvent());
}
void COWLlinkHttpConnectionHandlerProcessor::connectionDisconnect() {
postEvent(new CConnectionDisconnectedEvent());
}
CConfiguration* COWLlinkHttpConnectionHandlerProcessor::getConfiguration() {
if (!reasonerCommander) {
return mLoaderConfig;
} else {
CGetDescriptionCommand *getDesComm = new CGetDescriptionCommand();
reasonerCommander->delegateCommand(getDesComm);
CCommandExecutedBlocker commExeBlocker;
commExeBlocker.waitExecutedCommand(getDesComm);
CConfiguration *config = getDesComm->getConfiguration();
return config;
}
}
}; // end namespace OWLlink
}; // end namespace Interface
}; // end namespace Control
}; // end namespace Konclude
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