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/*
Copyright (C) 2010 Srivats P.
This file is part of "Ostinato"
This is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#include "pdmlfileformat.h"
#include "ostprotolib.h"
#include "pdmlreader.h"
#include <QProcess>
#include <QTemporaryFile>
PdmlFileFormat pdmlFileFormat;
PdmlFileFormat::PdmlFileFormat()
{
}
PdmlFileFormat::~PdmlFileFormat()
{
}
bool PdmlFileFormat::open(const QString fileName,
OstProto::StreamConfigList &streams, QString &error)
{
bool isOk = false;
QFile file(fileName);
PdmlReader *reader = new PdmlReader(&streams);
if (!file.open(QIODevice::ReadOnly))
goto _open_fail;
connect(reader, SIGNAL(progress(int)), this, SIGNAL(progress(int)));
emit status("Reading PDML packets...");
emit target(100); // in percentage
isOk = reader->read(&file, NULL, &stop_);
if (stop_)
goto _user_cancel;
if (!isOk)
{
error.append(QString("Error processing PDML (%1, %2): %3\n")
.arg(reader->lineNumber())
.arg(reader->columnNumber())
.arg(reader->errorString()));
goto _exit;
}
goto _exit;
_open_fail:
isOk = false;
_user_cancel:
_exit:
delete reader;
return isOk;
}
bool PdmlFileFormat::save(const OstProto::StreamConfigList streams,
const QString fileName, QString &error)
{
bool isOk = false;
QTemporaryFile pcapFile;
StreamFileFormat *fmt = StreamFileFormat::fileFormatFromType("PCAP");
QProcess tshark;
Q_ASSERT(fmt);
if (!pcapFile.open())
{
error.append("Unable to open temporary file to create PCAP\n");
goto _fail;
}
qDebug("intermediate PCAP %s", qPrintable(pcapFile.fileName()));
connect(fmt, SIGNAL(target(int)), this, SIGNAL(target(int)));
connect(fmt, SIGNAL(progress(int)), this, SIGNAL(progress(int)));
emit status("Writing intermediate PCAP file...");
isOk = fmt->save(streams, pcapFile.fileName(), error);
qDebug("generating PDML %s", qPrintable(fileName));
emit status("Converting PCAP to PDML...");
emit target(0);
tshark.setStandardOutputFile(fileName);
tshark.start(OstProtoLib::tsharkPath(),
QStringList()
<< QString("-r%1").arg(pcapFile.fileName())
<< "-Tpdml");
if (!tshark.waitForStarted(-1))
{
error.append(QString("Unable to start tshark. Check path in preferences.\n"));
goto _fail;
}
if (!tshark.waitForFinished(-1))
{
error.append(QString("Error running tshark\n"));
goto _fail;
}
isOk = true;
_fail:
return isOk;
}
bool PdmlFileFormat::isMyFileFormat(const QString fileName)
{
bool ret = false;
QFile file(fileName);
QByteArray buf;
QXmlStreamReader xml;
if (!file.open(QIODevice::ReadOnly))
goto _exit;
xml.setDevice(&file);
xml.readNext();
if (xml.hasError() || !xml.isStartDocument())
goto _close_exit;
// skip everything until the start of the first element
while (!xml.isStartElement())
{
xml.readNext();
if (xml.hasError())
goto _close_exit;
}
if (!xml.hasError() && xml.isStartElement() && (xml.name() == "pdml"))
ret = true;
else
ret = false;
_close_exit:
xml.clear();
file.close();
_exit:
return ret;
}
bool PdmlFileFormat::isMyFileType(const QString fileType)
{
if (fileType.startsWith("PDML"))
return true;
else
return false;
}
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