/*

  util.h - some inline helper functions

  Copyright (C) 2004 Klarälvdalens Datakonsult AB

  2016 Bundesamt für Sicherheit in der Informationstechnik

  Software engineering by Intevation GmbH

  This file is part of GPGME++.

  GPGME++ is free software; you can redistribute it and/or

  modify it under the terms of the GNU Library General Public

  License as published by the Free Software Foundation; either

  version 2 of the License, or (at your option) any later version.

  GPGME++ 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 Library General Public License for more details.

  You should have received a copy of the GNU Library General Public License

  along with GPGME++; see the file COPYING.LIB.  If not, write to the

  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

  Boston, MA 02110-1301, USA.

*/

// -*- c++ -*-

#ifndef __GPGMEPP_UTIL_H__

#define __GPGMEPP_UTIL_H__

#include "global.h"

#include "notation.h"

#include <gpgme.h>

#ifndef NDEBUG

#include <iostream>

#endif

#include <sstream>

#include <string>

static inline const char *protect(const char *s)

{

    return s ? s : "<null>" ;

}

static inline gpgme_error_t make_error(gpgme_err_code_t code)

{

    return gpgme_err_make((gpgme_err_source_t)22, code);

}

static inline unsigned long to_pid(const std::string &s)

{

    std::stringstream ss(s);

    unsigned int result;

    if (ss >> result) {

        return result;

    } else {

        return 0U;

    }

}

static inline gpgme_keylist_mode_t add_to_gpgme_keylist_mode_t(unsigned int oldmode, unsigned int newmodes)

{

    if (newmodes & GpgME::Local) {

        oldmode |= GPGME_KEYLIST_MODE_LOCAL;

    }

    if (newmodes & GpgME::Extern) {

        oldmode |= GPGME_KEYLIST_MODE_EXTERN;

    }

    if (newmodes & GpgME::Signatures) {

        oldmode |= GPGME_KEYLIST_MODE_SIGS;

    }

    if (newmodes & GpgME::SignatureNotations) {

        oldmode |= GPGME_KEYLIST_MODE_SIG_NOTATIONS;

    }

    if (newmodes & GpgME::Ephemeral) {

        oldmode |= GPGME_KEYLIST_MODE_EPHEMERAL;

    }

    if (newmodes & GpgME::Validate) {

        oldmode |= GPGME_KEYLIST_MODE_VALIDATE;

    }

    if (newmodes & GpgME::WithTofu) {

        oldmode |= GPGME_KEYLIST_MODE_WITH_TOFU;

    }

#ifndef NDEBUG

    if (newmodes & ~(GpgME::Local | GpgME::Extern | GpgME::Signatures | GpgME::SignatureNotations | GpgME::Ephemeral | GpgME::Validate)) {

        //std::cerr << "GpgME::Context: keylist mode must be one of Local, "

        //"Extern, Signatures, SignatureNotations, or Validate, or a combination thereof!" << std::endl;

    }

#endif

    return static_cast<gpgme_keylist_mode_t>(oldmode);

}

static inline unsigned int convert_from_gpgme_keylist_mode_t(unsigned int mode)

{

    unsigned int result = 0;

    if (mode & GPGME_KEYLIST_MODE_LOCAL) {

        result |= GpgME::Local;

    }

    if (mode & GPGME_KEYLIST_MODE_EXTERN) {

        result |= GpgME::Extern;

    }

    if (mode & GPGME_KEYLIST_MODE_SIGS) {

        result |= GpgME::Signatures;

    }

    if (mode & GPGME_KEYLIST_MODE_SIG_NOTATIONS) {

        result |= GpgME::SignatureNotations;

    }

    if (mode & GPGME_KEYLIST_MODE_EPHEMERAL) {

        result |= GpgME::Ephemeral;

    }

    if (mode & GPGME_KEYLIST_MODE_VALIDATE) {

        result |= GpgME::Validate;

    }

#ifndef NDEBUG

    if (mode & ~(GPGME_KEYLIST_MODE_LOCAL |

                 GPGME_KEYLIST_MODE_EXTERN |

                 GPGME_KEYLIST_MODE_SIG_NOTATIONS |

                 GPGME_KEYLIST_MODE_EPHEMERAL |

                 GPGME_KEYLIST_MODE_VALIDATE |

                 GPGME_KEYLIST_MODE_SIGS)) {

        //std::cerr << "GpgME: WARNING: gpgme_get_keylist_mode() returned an unknown flag!" << std::endl;

    }

#endif // NDEBUG

    return result;

}

static inline GpgME::Notation::Flags convert_from_gpgme_sig_notation_flags_t(unsigned int flags)

{

    unsigned int result = 0;

    if (flags & GPGME_SIG_NOTATION_HUMAN_READABLE) {

        result |= GpgME::Notation::HumanReadable ;

    }

    if (flags & GPGME_SIG_NOTATION_CRITICAL) {

        result |= GpgME::Notation::Critical ;

    }

    return static_cast<GpgME::Notation::Flags>(result);

}

static inline gpgme_sig_notation_flags_t  add_to_gpgme_sig_notation_flags_t(unsigned int oldflags, unsigned int newflags)

{

    unsigned int result = oldflags;

    if (newflags & GpgME::Notation::HumanReadable) {

        result |= GPGME_SIG_NOTATION_HUMAN_READABLE;

    }

    if (newflags & GpgME::Notation::Critical) {

        result |= GPGME_SIG_NOTATION_CRITICAL;

    }

    return static_cast<gpgme_sig_notation_flags_t>(result);

}

#endif // __GPGMEPP_UTIL_H__