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/*
* Copyright (C) 2003-2008 Justin Karneges <justin@affinix.com>
* Copyright (C) 2014 Ivan Romanov <drizt@land.ru>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "utils.h"
#include "mykeystorelist.h"
#include <QCoreApplication>
#include <QFileInfo>
#include <QStringList>
#ifdef Q_OS_WIN
#include <windows.h>
#endif
using namespace QCA;
namespace gpgQCAPlugin {
void gpg_waitForFinished(GpgOp *gpg)
{
while (true) {
GpgOp::Event e = gpg->waitForEvent(-1);
if (e.type == GpgOp::Event::Finished)
break;
}
}
void gpg_keyStoreLog(const QString &str)
{
MyKeyStoreList *ksl = MyKeyStoreList::instance();
if (ksl)
ksl->ext_keyStoreLog(str);
}
inline bool check_bin(const QString &bin)
{
QFileInfo fi(bin);
return fi.exists();
}
#ifdef Q_OS_WIN
static bool get_reg_key(HKEY root, const char *path, QString &value)
{
HKEY hkey = 0;
char szValue[256];
DWORD dwLen = 256;
bool res = false;
if (RegOpenKeyExA(root, path, 0, KEY_QUERY_VALUE, &hkey) == ERROR_SUCCESS) {
if (RegQueryValueExA(hkey, "Install Directory", NULL, NULL, (LPBYTE)szValue, &dwLen) == ERROR_SUCCESS) {
value = QString::fromLocal8Bit(szValue);
res = true;
}
RegCloseKey(hkey);
}
return res;
}
static QString find_reg_gpgProgram()
{
const QStringList bins = {QStringLiteral("gpg.exe"), QStringLiteral("gpg2.exe")};
HKEY root;
root = HKEY_CURRENT_USER;
const char *path = "Software\\GNU\\GnuPG";
const char *path2 = "Software\\Wow6432Node\\GNU\\GnuPG";
QString dir;
// check list of possible places in registry
get_reg_key(HKEY_CURRENT_USER, path, dir) || get_reg_key(HKEY_CURRENT_USER, path2, dir) ||
get_reg_key(HKEY_LOCAL_MACHINE, path, dir) || get_reg_key(HKEY_LOCAL_MACHINE, path2, dir);
if (!dir.isEmpty()) {
foreach (const QString &bin, bins) {
if (check_bin(dir + QStringLiteral("\\") + bin)) {
return dir + QStringLiteral("\\") + bin;
}
}
}
return QString();
}
#endif
QString find_bin()
{
// gpg and gpg2 has identical semantics
// so any from them can be used
QStringList bins;
#ifdef Q_OS_WIN
bins << QStringLiteral("gpg.exe") << QStringLiteral("gpg2.exe");
#else
bins << QStringLiteral("gpg") << QStringLiteral("gpg2");
#endif
// Prefer bundled gpg
foreach (const QString &bin, bins) {
if (check_bin(QCoreApplication::applicationDirPath() + QLatin1Char('/') + bin)) {
return QCoreApplication::applicationDirPath() + QLatin1Char('/') + bin;
}
}
#ifdef Q_OS_WIN
// On Windows look up at registry
QString bin = find_reg_gpgProgram();
if (!bin.isEmpty())
return bin;
#endif
#ifdef Q_OS_WIN
const QString pathSep = QStringLiteral(";");
#else
const QString pathSep = QStringLiteral(":");
#endif
// Look up at PATH environment
QStringList paths = QString::fromLocal8Bit(qgetenv("PATH")).split(pathSep, Qt::SkipEmptyParts);
#ifdef Q_OS_MAC
// On Mac OS bundled always uses system default PATH
// so it need explicity add extra paths which can
// contain gpg
// Mac GPG and brew use /usr/local/bin
// MacPorts uses /opt/local/bin
paths << QStringLiteral("/usr/local/bin") << QStringLiteral("/opt/local/bin");
#endif
paths.removeDuplicates();
foreach (const QString &path, paths) {
foreach (const QString &bin, bins) {
if (check_bin(path + QLatin1Char('/') + bin)) {
return path + QLatin1Char('/') + bin;
}
}
}
// Return nothing if gpg not found
return QString();
}
QString escape_string(const QString &in)
{
QString out;
for (const QChar &c : in) {
if (c == QLatin1Char('\\'))
out += QStringLiteral("\\\\");
else if (c == QLatin1Char(':'))
out += QStringLiteral("\\c");
else
out += c;
}
return out;
}
QString unescape_string(const QString &in)
{
QString out;
for (int n = 0; n < in.length(); ++n) {
if (in[n] == QLatin1Char('\\')) {
if (n + 1 < in.length()) {
if (in[n + 1] == QLatin1Char('\\'))
out += QLatin1Char('\\');
else if (in[n + 1] == QLatin1Char('c'))
out += QLatin1Char(':');
++n;
}
} else
out += in[n];
}
return out;
}
PGPKey publicKeyFromId(const QString &id)
{
MyKeyStoreList *ksl = MyKeyStoreList::instance();
if (!ksl)
return PGPKey();
return ksl->publicKeyFromId(id);
}
PGPKey secretKeyFromId(const QString &id)
{
MyKeyStoreList *ksl = MyKeyStoreList::instance();
if (!ksl)
return PGPKey();
return ksl->secretKeyFromId(id);
}
} // end namespace gpgQCAPlugin
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