ostinato/common/pdmlfileformat.cpp
2011-03-26 21:36:57 +05:30

153 lines
3.6 KiB
C++

/*
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 "pdml_p.h"
#include <QProcess>
#include <QTemporaryFile>
PdmlFileFormat pdmlFileFormat;
PdmlFileFormat::PdmlFileFormat()
{
}
PdmlFileFormat::~PdmlFileFormat()
{
}
bool PdmlFileFormat::openStreams(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
// TODO: fill in error string
isOk = reader->read(&file);
goto _exit;
_open_fail:
isOk = false;
_exit:
delete reader;
return isOk;
}
bool PdmlFileFormat::saveStreams(const OstProto::StreamConfigList streams,
const QString fileName, QString &error)
{
bool isOk = false;
QTemporaryFile pcapFile;
AbstractFileFormat *fmt = AbstractFileFormat::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", pcapFile.fileName().toAscii().constData());
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->saveStreams(streams, pcapFile.fileName(), error);
qDebug("generating PDML %s", fileName.toAscii().constData());
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;
xml.readNext();
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;
}