/*

  global.h - global gpgme functions and enums

  Copyright (C) 2003, 2007 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_GLOBAL_H__

#define __GPGMEPP_GLOBAL_H__

#include "gpgmefw.h"

#include "gpgmepp_export.h"

#include <iosfwd>

#include <cstring>

namespace GpgME

{

class Error;

class EngineInfo;

class Context;

}

struct _GIOChannel;

typedef struct _GIOChannel      GIOChannel;

class QIODevice;

namespace GpgME

{

GPGMEPP_EXPORT void initializeLibrary();

/*!

  Initializes the library, returns Error::code() ==

  GPG_ERR_USER_1 if underlying gpgme is too old.

*/

GPGMEPP_EXPORT Error initializeLibrary(int);

enum Protocol { OpenPGP, CMS, UnknownProtocol };

enum Engine { GpgEngine, GpgSMEngine, GpgConfEngine, UnknownEngine, AssuanEngine, G13Engine, SpawnEngine };

enum KeyListMode {

    Local = 0x1,

    Extern = 0x2,

    Signatures = 0x4,

    SignatureNotations = 0x8,

    Validate = 0x10,

    Ephemeral = 0x20,

    WithTofu = 0x40

};

enum SignatureMode { NormalSignatureMode, Detached, Clearsigned };

GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, Protocol proto);

GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, Engine eng);

GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, KeyListMode mode);

GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, SignatureMode mode);

GPGMEPP_EXPORT Error setDefaultLocale(int category, const char *value);

GPGMEPP_EXPORT Context *wait(Error &e, bool hang = true);

typedef void (*IdleFunction)(void);

GPGMEPP_EXPORT IdleFunction registerIdleFunction(IdleFunction idleFunction);

typedef void (*IOCallback)(void *data, int fd);

GPGMEPP_EXPORT EngineInfo engineInfo(Protocol proto);

GPGMEPP_EXPORT EngineInfo engineInfo(Engine engine);

/** Wrapper around gpgme_get_dirinfo. What can be:

homedir, sysconfdir, bindir, libexecdir, libdir,

datadir, localedir, agent-socket, agent-ssh-socket,

dirmngr-socket, uiserver-socket, gpgconf-name, gpg-name,

gpgsm-name, g13-name

This may be extended in the future.

*/

GPGMEPP_EXPORT const char *dirInfo(const char *what);

GPGMEPP_EXPORT Error checkEngine(Protocol proto);

GPGMEPP_EXPORT Error checkEngine(Engine engine);

GPGMEPP_EXPORT GIOChannel *getGIOChannel(int fd);

GPGMEPP_EXPORT QIODevice   *getQIODevice(int fd);

enum Feature {

    ValidatingKeylistModeFeature               = 0x00000001,

    CancelOperationFeature                     = 0x00000002,

    WrongKeyUsageFeature                       = 0x00000004,

    DefaultCertificateInclusionFeature         = 0x00000008,

    GetSetEngineInfoFeature                    = 0x00000010,

    EngineInfoHomeDirFeature                   = 0x00000020,

    NoEncryptToEncryptionFlagFeature           = 0x00000040,

    EphemeralKeylistModeFeature                = 0x00000080,

    SetDataFileNameFeeature                    = 0x00000100,

    VerificationResultFileNameFeature          = 0x00000200,

    DecryptionResultFileNameFeature            = 0x00000400,

    DecryptionResultRecipientsFeature          = 0x00000800,

    AuditLogFeature                            = 0x00001000,

    GpgConfEngineFeature                       = 0x00002000,

    CancelOperationAsyncFeature                = 0x00004000,

    AssuanEngineFeature                        = 0x00008000,

    ClearAddGetSignatureNotationsFeature       = 0x00010000,

    SignatureNotationsKeylistModeFeature       = 0x00020000,

    KeySignatureNotationsFeature               = 0x00040000,

    SignatureNotationsFlagsFeature             = 0x00080000,

    SignatureNotationsCriticalFlagFeature      = 0x00100000,

    SignatureNotationsHumanReadableFlagFeature = 0x00200000,

    CardKeyFeature                             = 0x00400000,

    ImportFromKeyserverFeature                 = 0x00800000,

    KeyIsQualifiedFeature                      = 0x01000200,

    SubkeyIsQualifiedFeature                   = 0x02000000,

    SignaturePkaFieldsFeature                  = 0x04000000,

    SignatureAlgorithmFieldsFeature            = 0x08000000,

    FdPointerFeature                           = 0x10000000,

    G13VFSFeature                              = 0x20000000,

    PasswdFeature                              = 0x40000000, // gpgme >= 1.3.0

    // unusable (max value)

    FeatureMaxValue                            = 0x80000000

};

enum Feature2 {

    BinaryAndFineGrainedIdentify               = 0x00000001, // gpgme >= 1.7.0

    Feature2MaxValue                           = 0x80000000

};

// use hasFeature( unsigned long, unsigned long ) instead

GPGMEPP_DEPRECATED_EXPORT bool hasFeature(unsigned long feature);

GPGMEPP_EXPORT bool hasFeature(unsigned long feature, unsigned long feature2);

} // namespace GpgME

# ifndef GPGMEPP_MAKE_STD_SWAP_SPECIALIZATION

#  define GPGMEPP_MAKE_STD_SWAP_SPECIALIZATION( Class ) \

    namespace std { template <> inline void swap< GpgME::Class >( GpgME::Class & lhs, GpgME::Class & rhs ) { lhs.swap( rhs ); } }

# endif

# ifndef GPGMEPP_MAKE_SAFE_BOOL_OPERATOR

#  define GPGMEPP_MAKE_SAFE_BOOL_OPERATOR( Cond ) \

    private: \

    struct __safe_bool_dummy__ { void nonnull() {} }; \

    typedef void ( __safe_bool_dummy__::*unspecified_bool_type )(); \

    public: \

    operator unspecified_bool_type() const { return ( Cond ) ? &__safe_bool_dummy__::nonnull : 0 ; }

# endif

inline int _gpgmepp_strcmp(const char *s1, const char *s2)

{

    return s1 ? s2 ? std::strcmp(s1, s2) : 1 : s2 ? -1 : 0;

}

#define _GPGMEPP_MAKE_STRCMP( Name, expr, cmp )                     \

    template <template <typename U> class Op>                           \

    struct Name {                                                       \

        typedef bool result_type;                                       \

        \

        bool operator()( const char * lhs, const char * rhs ) const {   \

            return Op<int>()( cmp, 0 );                                 \

        }                                                               \

        \

        bool operator()( const std::string & lhs, const std::string & rhs ) const { \

            return operator()( lhs.c_str(), rhs.c_str() );              \

        }                                                               \

        bool operator()( const char * lhs, const std::string & rhs ) const { \

            return operator()( lhs, rhs.c_str() );                      \

        }                                                               \

        bool operator()( const std::string & lhs, const char * rhs ) const { \

            return operator()( lhs.c_str(), rhs );                      \

        }                                                               \

        \

        template <typename T>                                           \

        bool operator()( const T & lhs, const T & rhs ) const {         \

            return operator()( (lhs expr), (rhs expr) );                \

        }                                                               \

        template <typename T>                                           \

        bool operator()( const T & lhs, const char * rhs ) const {      \

            return operator()( (lhs expr), rhs );                       \

        }                                                               \

        template <typename T>                                           \

        bool operator()( const char * lhs, const T & rhs ) const {      \

            return operator()( lhs, (rhs expr) );                       \

        }                                                               \

        template <typename T>                                           \

        bool operator()( const T & lhs, const std::string & rhs ) const { \

            return operator()( (lhs expr), rhs );                       \

        }                                                               \

        template <typename T>                                           \

        bool operator()( const std::string & lhs, const T & rhs ) const {    \

            return operator()( lhs, (rhs expr) );                       \

        }                                                               \

    }

#define GPGMEPP_MAKE_STRCMP( Name, expr )                          \

    _GPGMEPP_MAKE_STRCMP( Name, expr, _gpgmepp_strcmp( lhs, rhs ) )

#endif // __GPGMEPP_GLOBAL_H__