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/*
(c) Copyright 2012 - 2018 Anton Sviridenko
https://picapica.im
This program 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 <https://www.gnu.org/licenses/>.
*/
#include "dhparam.h"
#include <QFile>
#include <QDir>
DHParam *DHParam::dhparamgenerator = NULL;
QString DHParam::current_dhparam_file;
DHParam::DHParam(QObject *parent) :
QObject(parent)
{
}
bool DHParam::VerifyDefault(QString *errormsg)
{
if (!QFile::exists(config_defaultDHParam))
{
if (errormsg)
*errormsg =
QString(tr("Diffie-Hellman parameters file \"%1\" does not exist"))
.arg(config_defaultDHParam);
return false;
}
return true;
}
bool DHParam::VerifyGenerated(QString *errormsg)
{
if (!QFile::exists(config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE))
return false;
return true;
}
bool DHParam::UseDefault()
{
return QFile::copy(config_defaultDHParam, config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE);
}
bool DHParam::StartNewDHParamGeneration(QString *errormsg)
{
if (dhparamgenerator)
{
if (errormsg)
*errormsg = QString(tr("Diffie-Hellman parameter generation process is already running"));
return false;
}
dhparamgenerator = new DHParam();
if (!dhparamgenerator)
return false;
QString tempdhfile = config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE + ".temp";
if (QFile::exists(tempdhfile))
QFile::remove(tempdhfile);
return dhparamgenerator -> osslt.GenDHParamSignal(PICA_CLIENT_DHPARAMBITS,
tempdhfile, dhparamgenerator, SLOT(DHParamGenFinished(int, QProcess::ExitStatus)));
}
QString DHParam::GetDHParamFilename()
{
if (current_dhparam_file.isEmpty())
{
if (QFile::exists(config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE))
current_dhparam_file = config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE;
else
current_dhparam_file = config_defaultDHParam;
}
return current_dhparam_file;
}
void DHParam::DHParamGenFinished(int retval, QProcess::ExitStatus)
{
if (retval == 0)
{
if (QFile::exists(config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE))
QFile::remove(config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE);
QFile::rename(config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE + ".temp",
config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE);
current_dhparam_file = config_dir + QDir::separator() + PICA_CLIENT_DHPARAMFILE;
delete dhparamgenerator;
dhparamgenerator = NULL;
}
}
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