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/***************************************************************************
security.cpp - description
-------------------
begin : Thu Jun 24 11:22:12 2004
copyright : (C) 2004 by Andras Mantia <amantia@kde.org>
***************************************************************************/
/***************************************************************************
* *
* 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; version 2 of the License. *
* *
***************************************************************************/
//qt includes
#include <qfile.h>
#include <qfileinfo.h>
#include <qstringlist.h>
#include <qtimer.h>
//kde includes
#include <kdebug.h>
#include <klocale.h>
#include <kmdcodec.h>
#include <kmessagebox.h>
#include <kprocio.h>
//app includes
#include "security.h"
Security::Security()
{
m_keysRead = false;
m_gpgRunning = false;
readKeys();
}
Security::~Security()
{
}
void Security::readKeys()
{
if (m_gpgRunning)
{
QTimer::singleShot(5, this, SLOT(readKeys()));
return;
}
m_runMode = List;
m_keys.clear();
KProcIO *readProcess=new KProcIO();
*readProcess << "gpg"<<"--no-secmem-warning"<<"--no-tty"<<"--with-colon"<<"--list-keys";
connect(readProcess, SIGNAL(processExited(KProcess *)), this, SLOT(slotProcessExited()));
connect(readProcess, SIGNAL(readReady(KProcIO *)) ,this, SLOT(slotDataArrived(KProcIO *)));
if (!readProcess->start(KProcess::NotifyOnExit, true))
KMessageBox::error(0L, i18n("<qt>Cannot start <i>gpg</i> and retrieve the available keys. Make sure that <i>gpg</i> is installed, otherwise verification of downloaded resources will not be possible.</qt>"));
else
m_gpgRunning = true;
}
void Security::slotProcessExited()
{
switch (m_runMode)
{
case List: m_keysRead = true;
break;
case Verify:
emit validityResult(m_result);
break;
}
m_gpgRunning = false;
/*
QMap<QString, KeyStruct>::Iterator it;
for (it = m_keys.begin(); it != m_keys.end(); ++it)
{
KeyStruct key = it.data();
kdDebug(24000) << "Id: " << it.key() << " Name: " << key.name << " Mail: " << key.mail << " Trusted: " << key.trusted << endl;
}*/
}
void Security::slotDataArrived(KProcIO *procIO)
{
QString data;
while (procIO->readln(data) != -1)
{
switch (m_runMode)
{
case List:
if (data.startsWith("pub"))
{
KeyStruct key;
QStringList line = QStringList::split(":", data, true);
key.id = line[4];
QString shortId = key.id.right(8);
QString trustStr = line[1];
key.trusted = false;
if (trustStr == "u" || trustStr == "f")
key.trusted = true;
data = line[9];
key.mail=data.section('<', -1, -1);
key.mail.truncate(key.mail.length() - 1);
key.name=data.section('<',0,0);
if (key.name.find("(")!=-1)
key.name=key.name.section('(',0,0);
m_keys[shortId] = key;
}
break;
case Verify:
data = data.section("]",1,-1).stripWhiteSpace();
if (data.startsWith("GOODSIG"))
{
m_result |= SIGNED_OK;
QString id = data.section(" ", 1 , 1).right(8);
if (!m_keys.contains(id))
{
m_result |= UNKNOWN;
} else
{
m_signatureKey = m_keys[id];
}
} else
if (data.startsWith("NO_PUBKEY"))
{
m_result |= UNKNOWN;
} else
if (data.startsWith("BADSIG"))
{
m_result |= SIGNED_BAD;
QString id = data.section(" ", 1 , 1).right(8);
if (!m_keys.contains(id))
{
m_result |= UNKNOWN;
} else
{
m_signatureKey = m_keys[id];
}
} else
if (data.startsWith("TRUST_ULTIMATE"))
m_result |= TRUSTED;
break;
}
}
}
void Security::checkValidity(const QString& filename)
{
if (!m_keysRead)
{
emit validityResult(0); //other error
return;
}
m_result = 0;
m_runMode = Verify;
QFileInfo f(filename);
//check the MD5 sum
QString md5sum;
const char* c = "";
KMD5 context(c);
QFile file(filename);
if (file.open(IO_ReadOnly))
{
context.reset();
context.update(file);
md5sum = context.hexDigest();
file.close();
}
file.setName(f.dirPath() + "/md5sum");
if (file.open(IO_ReadOnly))
{
QString md5sum_file;
file.readLine(md5sum_file, 50);
if (!md5sum.isEmpty() && !md5sum_file.isEmpty() && md5sum_file.startsWith(md5sum))
m_result |= MD5_OK;
file.close();
}
//verify the signature
KProcIO *verifyProcess=new KProcIO();
*verifyProcess<<"gpg"<<"--no-secmem-warning"<<"--status-fd=2"<<"--command-fd=0"<<"--verify" << f.dirPath() + "/signature"<< filename;
connect(verifyProcess, SIGNAL(processExited(KProcess *)),this, SLOT(slotProcessExited()));
connect(verifyProcess, SIGNAL(readReady(KProcIO *)),this, SLOT(slotDataArrived(KProcIO *)));
if (verifyProcess->start(KProcess::NotifyOnExit,true))
m_gpgRunning = true;
else
{
KMessageBox::error(0L, i18n("<qt>Cannot start <i>gpg</i> and check the validity of the file. Make sure that <i>gpg</i> is installed, otherwise verification of downloaded resources will not be possible.</qt>"));
emit validityResult(0);
}
}
#include "security.moc"
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