trunk/Include/wptGPG.h

/* wptGPG.h - GnuPG interface
 *      Copyright (C) 2000-2005 Timo Schulz
 *
 * This file is part of WinPT.
 *
 * WinPT 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.
 *  
 * WinPT 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 WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
 */

#ifndef WPT_GPG_H
#define WPT_GPG_H

#include "wptNLS.h"
#include "gpgme.h"

#define NO_STRICT 0

enum {
    SETUP_KEYGEN    = 1,
    SETUP_IMPORT    = 2,
    SETUP_EXISTING  = 3
};

enum {
    GPG_CMD_DECRYPT = 0,
    GPG_CMD_SIGN    = 1
};

enum {
    KEYCACHE_PRV = 0,
    KEYCACHE_PUB = 1
};

enum {
    ENTRY_OPAQUE = 1,
    ENTRY_SINGLE = 2,
    ENTRY_MULTI  = 3,
    ENTRY_GROUP  = 4,
};

struct gpg_filetype {    
    const char *descr;
    const char *ext;
    int nicon;
};

struct refresh_cache_s {
    int kr_reload;
    int kr_update;
    int tr_update;
};

struct gpg_option_s {
    struct gpg_option_s * next;
    char * name;
    char * val;
    unsigned int used:1;
    int type;  
};
typedef struct gpg_option_s * gpg_option_t;

struct gpg_member_s {
    struct gpg_member_s * next;
    char * name;
    unsigned int used:1;  
};
typedef struct gpg_member_s * gpg_member_t;

struct gpg_group_s {
    struct gpg_group_s * next;
    struct gpg_member_s * list;
    char * name;
    unsigned int used:1;  
};
typedef struct gpg_group_s * gpg_group_t;

struct gpg_optfile_s {
    struct gpg_option_s * list;
    struct gpg_group_s * grp;
};
typedef struct gpg_optfile_s * gpg_optfile_t;

static gpg_filetype gpg_filetypes[] = {
    {"GPG Detached Signature", ".sig", 1},
    {"GPG Encrypted Data",     ".gpg", 2},
    {"GPG Armored Data",       ".asc", 2},
    {0}
};

struct passphrase_cb_s {
    int gpg_cmd;
    gpgme_recipients_t enc_to;
    int pwd_init;
    char pwd[256];
    char info[1024]; /* hold up the info message */
    char title[256];
    const char * keyid;
    HWND hwnd;
    int cancel;
    int is_card;
};

static const char * gpg_sigstat[] = {
    _("Error during verification process."),
    _("The signature is good."),
    _("The signature is BAD!"),
    _("The signature could not be checked due to a missing key."),
    _("No valid OpenPGP signature."),
    _("Signature Error"),
    _("Good Signature (Expired Key)"),
    _("Good Signature (Revoked Key)"),
    NULL
};

#define SIGSTAT_MASK 8

extern int idea_available;

/*-- wptGPG.cpp --*/
char* get_gnupg_default_key( void );
int set_gnupg_default_key( const char *key );
char* get_gnupg_config (void);
char* get_gnupg_keyring_from_options( const char *fname, int pub );
int check_gnupg_config (const char *fname, int *secrings, int *pubrings);
char* get_gnupg_path( void );
int check_gnupg_prog( void );
int gnupg_access_files (void);
char* get_gnupg_prog( void );
char* get_gnupg_keyring (int pub, int strict);
char* get_gnupg_cfgfile (void);
int set_gnupg_options( const char *buf, size_t buflen );

int check_gnupg_options (const char *buf);
void init_gnupg_table (void);
void free_gnupg_table (void);
int keyring_check_last_access (void);
const char* gnupg_check_file_ext (const char * fname);
int gpg_check_permissions (int showmsg);
int gnupg_check_homedir (void);
int gnupg_access_keyring (int _pub);
void gnupg_backup_options (int keep);
void gnupg_backup_keyrings (void);
void gnupg_display_error (void);
int gnupg_copy_keyrings (void);
int check_gnupg_engine (int *r_major, int *r_minor, int *r_patch);

gpgme_card_t smartcard_init (void);

/*-- wptGPGME.cpp --*/
const char * get_signature_status( gpgme_sigstat_t sigstat );
void keycache_reload( HWND dlg );

int get_pubkey( const char *keyid, gpgme_key_t *ret_key );
int get_seckey( const char *keyid, gpgme_key_t *ret_skey );

void keycache_reload( HWND dlg );
void keycache_release( void );
gpgme_error_t keycache_init( const char *pubring, const char * secring );
void keycache_set_reload( int yes );
int keycache_get_reload( void );
gpgme_keycache_t keycache_get_ctx( int _pub );

int count_insecure_elgkeys( void );

int gpgme_encrypt_symmetric( void );

#define gpgme_enable_logging( ctx ) \
    gpgme_control( (ctx), GPGME_CTRL_LOGGING, 1 )

#define gpgme_show_error( hwnd, rc, ctx, title, mode )          \
do {                                                            \
    if( (rc) == GPGME_Interal_GPG_Problem && ctx ) {            \
        char * strerr = gpgme_get_logging( (ctx) );             \
        msg_box( (hwnd), (strerr)? (strerr) :                   \
        _("No GPG error description available."), title, mode );\
        safe_free( strerr );                                    \
    }                                                           \
    else {                                                      \
        msg_box( (hwnd), gpgme_strerror( (rc) ),                \
                  title, mode );                                \
    }                                                           \
} while ( 0 )

/*-- wptGPGParser.cpp --*/
/* find */
gpg_group_t find_group( gpg_optfile_t opt, const char *str );
gpg_option_t find_option( gpg_optfile_t opt, const char *str );
gpg_member_t find_member( gpg_optfile_t opt, const char *grp, const char *str );
/* delete */
int delete_group( gpg_optfile_t opt, const char *str );
int delete_member( gpg_optfile_t opt, const char *grp, const char *str );
int delete_option( gpg_optfile_t opt, const char *str );
/* add */
int modify_entry( gpg_optfile_t opt, int type, const char *name, const char *val );
int add_entry( gpg_optfile_t opt, int type, const char *name, const char *val );
int add_member( gpg_optfile_t opt, const char *grp, const char *str );
int add_group( gpg_optfile_t opt, const char *str );
/* high-level */
int parse_gpg_options( const char *file, gpg_optfile_t *r_opt );
int commit_gpg_options( const char *file, gpg_optfile_t opt );
void release_gpg_options( gpg_optfile_t opt );
/* memory */
void release_group( gpg_group_t grp );

/*-- wptPassphraseCB.cpp --*/
void set_gpg_passphrase_cb( gpgme_ctx_t c, passphrase_cb_s * ctx, int cmd, 
                            HWND hwnd, const char * title );
char * request_passphrase( const char * title, int init, int * ret_cancel );
char * request_passphrase2 (const char * title, int * ret_cancel);
const char * passphrase_cb( void * opaque, const char * desc, void * r_hd );
char * get_key_userid( const char * keyid );

#endif /* WPT_GPG_H */
1	twoaday	2	/* wptGPG.h - GnuPG interface
2			* Copyright (C) 2000-2005 Timo Schulz
3			*
4			* This file is part of WinPT.
5			*
6			* WinPT is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* WinPT is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with WinPT; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#ifndef WPT_GPG_H
22			#define WPT_GPG_H
23
24			#include "wptNLS.h"
25			#include "gpgme.h"
26
27			#define NO_STRICT 0
28
29			enum {
30			SETUP_KEYGEN = 1,
31			SETUP_IMPORT = 2,
32			SETUP_EXISTING = 3
33			};
34
35			enum {
36			GPG_CMD_DECRYPT = 0,
37			GPG_CMD_SIGN = 1
38			};
39
40			enum {
41			KEYCACHE_PRV = 0,
42			KEYCACHE_PUB = 1
43			};
44
45			enum {
46			ENTRY_OPAQUE = 1,
47			ENTRY_SINGLE = 2,
48			ENTRY_MULTI = 3,
49			ENTRY_GROUP = 4,
50			};
51
52			struct gpg_filetype {
53			const char *descr;
54			const char *ext;
55			int nicon;
56			};
57
58			struct refresh_cache_s {
59			int kr_reload;
60			int kr_update;
61			int tr_update;
62			};
63
64			struct gpg_option_s {
65			struct gpg_option_s * next;
66			char * name;
67			char * val;
68			unsigned int used:1;
69			int type;
70			};
71			typedef struct gpg_option_s * gpg_option_t;
72
73			struct gpg_member_s {
74			struct gpg_member_s * next;
75			char * name;
76			unsigned int used:1;
77			};
78			typedef struct gpg_member_s * gpg_member_t;
79
80			struct gpg_group_s {
81			struct gpg_group_s * next;
82			struct gpg_member_s * list;
83			char * name;
84			unsigned int used:1;
85			};
86			typedef struct gpg_group_s * gpg_group_t;
87
88			struct gpg_optfile_s {
89			struct gpg_option_s * list;
90			struct gpg_group_s * grp;
91			};
92			typedef struct gpg_optfile_s * gpg_optfile_t;
93
94			static gpg_filetype gpg_filetypes[] = {
95			{"GPG Detached Signature", ".sig", 1},
96			{"GPG Encrypted Data", ".gpg", 2},
97			{"GPG Armored Data", ".asc", 2},
98			{0}
99			};
100
101			struct passphrase_cb_s {
102			int gpg_cmd;
103			gpgme_recipients_t enc_to;
104			int pwd_init;
105			char pwd[256];
106			char info[1024]; /* hold up the info message */
107			char title[256];
108			const char * keyid;
109			HWND hwnd;
110			int cancel;
111			int is_card;
112			};
113
114			static const char * gpg_sigstat[] = {
115			_("Error during verification process."),
116			_("The signature is good."),
117			_("The signature is BAD!"),
118			_("The signature could not be checked due to a missing key."),
119			_("No valid OpenPGP signature."),
120			_("Signature Error"),
121			_("Good Signature (Expired Key)"),
122			_("Good Signature (Revoked Key)"),
123			NULL
124			};
125
126			#define SIGSTAT_MASK 8
127
128			extern int idea_available;
129
130			/-- wptGPG.cpp --/
131			char* get_gnupg_default_key( void );
132			int set_gnupg_default_key( const char *key );
133			char* get_gnupg_config (void);
134			char* get_gnupg_keyring_from_options( const char *fname, int pub );
135			int check_gnupg_config (const char fname, int secrings, int *pubrings);
136			char* get_gnupg_path( void );
137			int check_gnupg_prog( void );
138			int gnupg_access_files (void);
139			char* get_gnupg_prog( void );
140			char* get_gnupg_keyring (int pub, int strict);
141			char* get_gnupg_cfgfile (void);
142			int set_gnupg_options( const char *buf, size_t buflen );
143
144			int check_gnupg_options (const char *buf);
145			void init_gnupg_table (void);
146			void free_gnupg_table (void);
147			int keyring_check_last_access (void);
148			const char* gnupg_check_file_ext (const char * fname);
149			int gpg_check_permissions (int showmsg);
150			int gnupg_check_homedir (void);
151			int gnupg_access_keyring (int _pub);
152			void gnupg_backup_options (int keep);
153			void gnupg_backup_keyrings (void);
154			void gnupg_display_error (void);
155			int gnupg_copy_keyrings (void);
156			int check_gnupg_engine (int r_major, int r_minor, int *r_patch);
157
158			gpgme_card_t smartcard_init (void);
159
160			/-- wptGPGME.cpp --/
161			const char * get_signature_status( gpgme_sigstat_t sigstat );
162			void keycache_reload( HWND dlg );
163
164			int get_pubkey( const char keyid, gpgme_key_t ret_key );
165			int get_seckey( const char keyid, gpgme_key_t ret_skey );
166
167			void keycache_reload( HWND dlg );
168			void keycache_release( void );
169			gpgme_error_t keycache_init( const char pubring, const char secring );
170			void keycache_set_reload( int yes );
171			int keycache_get_reload( void );
172			gpgme_keycache_t keycache_get_ctx( int _pub );
173
174			int count_insecure_elgkeys( void );
175
176			int gpgme_encrypt_symmetric( void );
177
178			#define gpgme_enable_logging( ctx ) \
179			gpgme_control( (ctx), GPGME_CTRL_LOGGING, 1 )
180
181			#define gpgme_show_error( hwnd, rc, ctx, title, mode ) \
182			do { \
183			if( (rc) == GPGME_Interal_GPG_Problem && ctx ) { \
184			char * strerr = gpgme_get_logging( (ctx) ); \
185			msg_box( (hwnd), (strerr)? (strerr) : \
186			_("No GPG error description available."), title, mode );\
187			safe_free( strerr ); \
188			} \
189			else { \
190			msg_box( (hwnd), gpgme_strerror( (rc) ), \
191			title, mode ); \
192			} \
193			} while ( 0 )
194
195			/-- wptGPGParser.cpp --/
196			/* find */
197			gpg_group_t find_group( gpg_optfile_t opt, const char *str );
198			gpg_option_t find_option( gpg_optfile_t opt, const char *str );
199			gpg_member_t find_member( gpg_optfile_t opt, const char grp, const char str );
200			/* delete */
201			int delete_group( gpg_optfile_t opt, const char *str );
202			int delete_member( gpg_optfile_t opt, const char grp, const char str );
203			int delete_option( gpg_optfile_t opt, const char *str );
204			/* add */
205			int modify_entry( gpg_optfile_t opt, int type, const char name, const char val );
206			int add_entry( gpg_optfile_t opt, int type, const char name, const char val );
207			int add_member( gpg_optfile_t opt, const char grp, const char str );
208			int add_group( gpg_optfile_t opt, const char *str );
209			/* high-level */
210			int parse_gpg_options( const char file, gpg_optfile_t r_opt );
211			int commit_gpg_options( const char *file, gpg_optfile_t opt );
212			void release_gpg_options( gpg_optfile_t opt );
213			/* memory */
214			void release_group( gpg_group_t grp );
215
216			/-- wptPassphraseCB.cpp --/
217			void set_gpg_passphrase_cb( gpgme_ctx_t c, passphrase_cb_s * ctx, int cmd,
218			HWND hwnd, const char * title );
219			char * request_passphrase( const char * title, int init, int * ret_cancel );
220			char * request_passphrase2 (const char * title, int * ret_cancel);
221			const char * passphrase_cb( void * opaque, const char * desc, void * r_hd );
222			char * get_key_userid( const char * keyid );
223
224			#endif /* WPT_GPG_H */