convert.cpp

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/*
 * Copyright (C) 2006 Jimmy Gilles <jimmygilles@gmail.com>
 * Copyright (C) 2010,2013,2014 Rolf Eike Beer <kde@opensource.sf-tec.de>
 */
/***************************************************************************
 *   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 2 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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

#include "convert.h"

#include <KDebug>
#include <gpgme.h>

#include "kgpgsettings.h"

namespace KgpgCore
{

namespace Convert
{

QString toString(const KgpgKeyAlgo algorithm)
{
    switch (algorithm) {
    case ALGO_RSA:
        return i18nc("Encryption algorithm", "RSA");
    case ALGO_DSA:
        return i18nc("Encryption algorithm", "DSA");
    case ALGO_ELGAMAL:
        return i18nc("Encryption algorithm", "ElGamal");
    case ALGO_DSA_ELGAMAL:
        return i18nc("Encryption algorithm", "DSA & ElGamal");
    case ALGO_RSA_RSA:
        return i18nc("Encryption algorithm RSA, Signing algorithm RSA", "RSA & RSA");
    case ALGO_UNKNOWN:
    default:
        return i18nc("Unknown algorithm", "Unknown");
    }
}

QString toString(const gpgme_validity_t ownertrust)
{
    switch (ownertrust) {
    case GPGME_VALIDITY_UNDEFINED:
        return i18n("Do not Know");
    case GPGME_VALIDITY_NEVER:
        return i18n("Do NOT Trust");
    case GPGME_VALIDITY_MARGINAL:
        return i18n("Marginally");
    case GPGME_VALIDITY_FULL:
        return i18n("Fully");
    case GPGME_VALIDITY_ULTIMATE:
        return i18n("Ultimately");
    case GPGME_VALIDITY_UNKNOWN:
    default:
        return i18nc("Unknown trust in key owner", "Unknown");
    }
}

QString toString(const KgpgKeyTrust trust)
{
    switch (trust) {
    case TRUST_INVALID:
        return i18nc("Invalid key", "Invalid");
    case TRUST_DISABLED:
        return i18nc("Disabled key", "Disabled");
    case TRUST_REVOKED:
        return i18n("Revoked");
    case TRUST_EXPIRED:
        return i18nc("Expired key", "Expired");
    case TRUST_UNDEFINED:
        return i18nc("Undefined key trust", "Undefined");
    case TRUST_NONE:
        return i18nc("No trust in key", "None");
    case TRUST_MARGINAL:
        return i18nc("Marginal trust in key", "Marginal");
    case TRUST_FULL:
        return i18nc("Full trust in key", "Full");
    case TRUST_ULTIMATE:
        return i18nc("Ultimate trust in key", "Ultimate");
    case TRUST_UNKNOWN:
    default:
        return i18nc("Unknown trust in key", "Unknown");
    }
}

QString toString(const KgpgCore::KgpgSubKeyType type)
{
    QStringList res;

    if (type & SKT_SIGNATURE)
        res << i18nc("key capability", "Signature");
    if (type & SKT_ENCRYPTION)
        res << i18nc("key capability", "Encryption");
    if (type & SKT_AUTHENTICATION)
        res << i18nc("key capability", "Authentication");
    if (type & SKT_CERTIFICATION)
        res << i18nc("key capability", "Certification");

    return res.join(i18nc("used to join a list of key types, e.g. 'encryption, signature'", ", "));
}

KgpgKeyAlgo toAlgo(const uint v)
{
    switch (v) {
    case GPGME_PK_RSA:
        return ALGO_RSA;
    case GPGME_PK_ELG_E:
    case GPGME_PK_ELG:
        return ALGO_ELGAMAL;
    case GPGME_PK_DSA:
        return ALGO_DSA;
    default:
        return ALGO_UNKNOWN;
    }
}

KgpgKeyAlgo toAlgo(const QString &s)
{
    bool b;
    unsigned int u = s.toUInt(&b);
    return b ? toAlgo(u) : ALGO_UNKNOWN;
}

KgpgKeyTrust toTrust(const QChar &c)
{
    switch (c.toAscii()) {
    case 'o':
        return TRUST_UNKNOWN;
    case 'i':
        return TRUST_INVALID;
    case 'd':
        return TRUST_DISABLED;
    case 'r':
        return TRUST_REVOKED;
    case 'e':
        return TRUST_EXPIRED;
    case 'q':
        return TRUST_UNDEFINED;
    case 'n':
        return TRUST_NONE;
    case 'm':
        return TRUST_MARGINAL;
    case 'f':
        return TRUST_FULL;
    case 'u':
        return TRUST_ULTIMATE;
    default:
        return TRUST_UNKNOWN;
    }
}

KgpgKeyTrust toTrust(const QString &s)
{
    return s.isEmpty() ? TRUST_UNKNOWN : toTrust(s[0]);
}

gpgme_validity_t toOwnerTrust(const QChar &c)
{
    switch (c.toAscii()) {
    case 'n':
        return GPGME_VALIDITY_NEVER;
    case 'm':
        return GPGME_VALIDITY_MARGINAL;
    case 'f':
        return GPGME_VALIDITY_FULL;
    case 'u':
        return GPGME_VALIDITY_ULTIMATE;
    default:
        return GPGME_VALIDITY_UNDEFINED;
    }
}

KgpgSubKeyType toSubType(const QString& capString, bool upper)
{
    KgpgSubKeyType ret;

    foreach (const QChar &ch, capString) {
        switch (ch.toAscii()) {
        case 's':
        case 'S':
            if (upper != ch.isUpper())
                continue;
            ret |= SKT_SIGNATURE;
            break;
        case 'e':
        case 'E':
            if (upper != ch.isUpper())
                continue;
            ret |= SKT_ENCRYPTION;
            break;
        case 'a':
        case 'A':
            if (upper != ch.isUpper())
                continue;
            ret |= SKT_AUTHENTICATION;
            break;
        case 'c':
        case 'C':
            if (upper != ch.isUpper())
                continue;
            ret |= SKT_CERTIFICATION;
            break;
        case 'D':   // disabled key
        case '?':   // unknown to GnuPG
            continue;
        default:
            kDebug(2100) << "unknown capability letter" << ch
            << "in cap string" << capString;
        }
    }

    return ret;
}

} // namespace Convert

} // namespace KgpgCore