trunk/Include/wptGPG.h

/* wptGPG.h - GnuPG interface
 *      Copyright (C) 2000-2006 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 <gpgme.h>
#include "wptKeyCache.h"
#include "wptNLS.h"


#define NO_STRICT 0

/* Macro to indicate if a key is useable or not. */
#define key_is_useable(key) (!(key)->revoked && \
                             !(key)->expired && \
                             !(key)->disabled)

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

enum gpg_cmd_t {
    GPG_CMD_DECRYPT = 0,
    GPG_CMD_SIGN    = 1
};

enum keycache_t {
    KEYCACHE_PRV = 0,
    KEYCACHE_PUB = 1
};


struct gpg_card_s;
typedef struct gpg_card_s *gpg_card_t;

/* Keycache refresh context. */
struct refresh_cache_s {
    int kr_reload;
    int kr_update;
    int tr_update;
};


/* Structure for the passphrase callback. */
struct passphrase_cb_s {
    int gpg_cmd;        /* sign or decrypt. */
    int pwd_init;       /* 1 = passphrase request via dialog. */
    char *pwd;          /* actual passphrase. */
    char info[1024];    /* hold up the info message */
    char *title;        /* dialog title. */
    char keyid[16+1];   /* keyid of the secret key the pwd can be used for. */
    HWND hwnd;          /* handle of the dialog window. */
    int cancel;         /* 1 = user cancelled passphrase request. */
    unsigned int is_card:1; /* 1 = key stored on a smart card. */
    unsigned int bad_pwd:1; /* 1 = last passphrase was bad. */
    gpgme_ctx_t gpg;
    gpgme_recipient_t recipients;
    struct {
        int sym_algo;
        int s2k_mode;
        int s2k_hash;
    } sym;
};


/* This variable is 1 if IDEA is available. */
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 gnupg_load_config (void);
char* multi_gnupg_path (int strict);

int check_gnupg_options (const char *buf, int showerr);
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 *r_type);
int gpg_check_permissions (int showmsg);
int gnupg_check_homedir (void);
int gnupg_access_keyring (int _pub);
void gnupg_backup_options ();
void gnupg_backup_keyrings (int auto_backup, int backup_mode, 
                            int include_secr);
int gnupg_copy_keyrings (void);
int check_gnupg_engine (const char *need_gpg_ver,
                        int *r_major, int *r_minor, int *r_patch);

/*-- wptGPGME.cpp --*/
const char * get_signature_status( gpgme_sigsum_t sigstat );

gpgme_error_t get_pubkey (const char *keyid, gpgme_key_t *ret_key);
gpgme_error_t winpt_get_pubkey (const char *keyid, struct winpt_key_s *k);
void          winpt_release_pubkey (winpt_key_s *k);
gpgme_error_t get_seckey (const char *keyid, gpgme_key_t *ret_skey);
gpgme_error_t winpt_get_seckey (const char *keyid, struct winpt_key_s *k);

void keycache_release (int cleanup);
gpgme_error_t keycache_update (int is_sec, const char *keyid);
gpgme_error_t keycache_init (const char *pubring, const char * secring);
gpg_keycache_t keycache_get_ctx (int _pub);

gpgme_error_t gpg_clip_sym_encrypt (void);
const char *get_gpg_sigstat (gpgme_sigsum_t sum);
int check_ultimate_trusted_key (void);
bool secret_key_available (void);

/*-- wptGPGParser.cpp --*/
enum entry_t {
    ENTRY_OPAQUE = 1,
    ENTRY_SINGLE = 2,
    ENTRY_MULTI  = 3,
    ENTRY_GROUP  = 4,
};

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;

/* 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 --*/
enum passdlg_t {
    PASSDLG_REPEAT  = 0,
    PASSDLG_INIT    = 1,  
    PASSDLG_STRICT  = 2,
    PASSDLG_NOTEMPTY= 4,
    PASSDLG_WARN_UTF8=8,
};

void set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx,
                            int cmd, HWND hwnd, const char *title);
void release_gpg_passphrase_cb (passphrase_cb_s *cb);
void release_gpg_recipients (gpgme_recipient_t *recipients);

char *request_passphrase (const char *title, int flags, int *ret_cancel);
char *request_passphrase2 (const char *title, int flags, int *ret_cancel);
char *request_key_passphrase (gpgme_key_t key, 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);
int check_passwd_quality (const char *pass, int strict);

/*-- wptClipboard.cpp --*/
gpgme_error_t gpg_clip_istext_avail (int *r_val);
gpgme_error_t gpg_clip_is_secured (int *r_type, int *r_val);
gpgme_error_t gpg_clip_get_pgptype (int *r_type);
gpgme_error_t gpg_clip_parse_pgpid (const char *data, int *r_type);

/* wptGPGMEData.cpp --*/
gpgme_error_t gpg_data_new_from_clipboard (gpgme_data_t *r_dh, int wraplen);
void         gpg_data_release_and_set_clipboard (gpgme_data_t dh, int chg_ver);
size_t       gpg_data_readline (gpgme_data_t dh, char *line, size_t nbytes);

gpgme_error_t gpg_data_release_and_set_file (gpgme_data_t dh, const char *fname);
gpgme_error_t  gpg_data_mail_quote (gpgme_data_t *r_dh);
gpgme_error_t  gpg_data_extract_plaintext (gpgme_data_t sig, gpgme_data_t *r_plain);
void          gpg_data_putc (gpgme_data_t hd, int c);

/*-- wptGPGUtil.cpp --*/
gpgme_error_t gpg_rebuild_cache (char **r_inf);
gpgme_error_t gpg_get_version (char **r_inf);
void          gpg_set_debug_mode (int val);
gpgme_error_t gpg_export_seckey (const char *keyid, const char *outfile);
gpgme_error_t gpg_manage_ownertrust (char **data, int do_export);
gpgme_error_t gpg_get_photoid_data (const char *keyid, char **r_status_data,
                                    unsigned char **r_data, 
                                    unsigned long *ndata);
gpgme_error_t gpg_revoke_cert (int desig_revoke, const char *inp_data, 
                               const char *keyid, char **r_revcert);
gpgme_error_t gpg_decode_c_string (const char *src, char **destp, size_t len);
gpgme_error_t gpg_import_key_list (const char *fname, char **r_out);
gpgme_error_t gpg_extract_keys (const char *keyfile, const char **keys, DWORD nkeys,
                                char **new_keyfile);
gpgme_error_t get_uat_validity (const char *keyid, gpgme_validity_t *r_valid);
gpgme_error_t gpg_get_recipients (const char *file, gpgme_recipient_t *r_list);
gpgme_error_t gpg_find_key_subpacket (const char *key, int subpktid,
                                      char **value);

#endif /* WPT_GPG_H */
1	werner	37	/* wptGPG.h - GnuPG interface
2	twoaday	175	* Copyright (C) 2000-2006 Timo Schulz
3	werner	37	*
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	twoaday	121	#include <gpgme.h>
25	werner	37	#include "wptKeyCache.h"
26			#include "wptNLS.h"
27
28
29			#define NO_STRICT 0
30
31	twoaday	254	/* Macro to indicate if a key is useable or not. */
32	twoaday	179	#define key_is_useable(key) (!(key)->revoked && \
33			!(key)->expired && \
34			!(key)->disabled)
35	werner	37
36			enum setup_t {
37			SETUP_KEYGEN = 1,
38			SETUP_IMPORT = 2,
39			SETUP_EXISTING = 3
40			};
41
42			enum gpg_cmd_t {
43			GPG_CMD_DECRYPT = 0,
44			GPG_CMD_SIGN = 1
45			};
46
47			enum keycache_t {
48			KEYCACHE_PRV = 0,
49			KEYCACHE_PUB = 1
50			};
51
52
53			struct gpg_card_s;
54	twoaday	179	typedef struct gpg_card_s *gpg_card_t;
55	werner	37
56			/* Keycache refresh context. */
57			struct refresh_cache_s {
58			int kr_reload;
59			int kr_update;
60			int tr_update;
61			};
62
63
64	twoaday	254	/* Structure for the passphrase callback. */
65	werner	37	struct passphrase_cb_s {
66			int gpg_cmd; /* sign or decrypt. */
67			int pwd_init; /* 1 = passphrase request via dialog. */
68			char pwd; / actual passphrase. */
69			char info[1024]; /* hold up the info message */
70			char title; / dialog title. */
71			char keyid[16+1]; /* keyid of the secret key the pwd can be used for. */
72			HWND hwnd; /* handle of the dialog window. */
73			int cancel; /* 1 = user cancelled passphrase request. */
74			unsigned int is_card:1; /* 1 = key stored on a smart card. */
75			unsigned int bad_pwd:1; /* 1 = last passphrase was bad. */
76			gpgme_ctx_t gpg;
77			gpgme_recipient_t recipients;
78			struct {
79			int sym_algo;
80			int s2k_mode;
81			int s2k_hash;
82			} sym;
83			};
84
85
86			/* This variable is 1 if IDEA is available. */
87			extern int idea_available;
88
89			/-- wptGPG.cpp --/
90	twoaday	254	char* get_gnupg_default_key (void);
91			int set_gnupg_default_key (const char *key);
92	werner	37	char* get_gnupg_config (void);
93	twoaday	254	char* get_gnupg_keyring_from_options (const char *fname, int pub);
94	werner	37	int check_gnupg_config (const char fname, int secrings, int *pubrings);
95			char* get_gnupg_path( void );
96			int check_gnupg_prog( void );
97			int gnupg_access_files (void);
98			char* get_gnupg_prog( void );
99			char* get_gnupg_keyring (int pub, int strict);
100			char* get_gnupg_cfgfile (void);
101			int set_gnupg_options( const char *buf, size_t buflen );
102	twoaday	39	int gnupg_load_config (void);
103	twoaday	128	char* multi_gnupg_path (int strict);
104	werner	37
105	twoaday	254	int check_gnupg_options (const char *buf, int showerr);
106	werner	37	void init_gnupg_table (void);
107			void free_gnupg_table (void);
108			int keyring_check_last_access (void);
109			const char* gnupg_check_file_ext (const char fname, int r_type);
110			int gpg_check_permissions (int showmsg);
111			int gnupg_check_homedir (void);
112			int gnupg_access_keyring (int _pub);
113			void gnupg_backup_options ();
114	twoaday	229	void gnupg_backup_keyrings (int auto_backup, int backup_mode,
115	twoaday	222	int include_secr);
116	werner	37	int gnupg_copy_keyrings (void);
117	twoaday	137	int check_gnupg_engine (const char *need_gpg_ver,
118			int r_major, int r_minor, int *r_patch);
119	werner	37
120			/-- wptGPGME.cpp --/
121			const char * get_signature_status( gpgme_sigsum_t sigstat );
122
123	twoaday	211	gpgme_error_t get_pubkey (const char keyid, gpgme_key_t ret_key);
124			gpgme_error_t winpt_get_pubkey (const char keyid, struct winpt_key_s k);
125	twoaday	217	void winpt_release_pubkey (winpt_key_s *k);
126	twoaday	211	gpgme_error_t get_seckey (const char keyid, gpgme_key_t ret_skey);
127			gpgme_error_t winpt_get_seckey (const char keyid, struct winpt_key_s k);
128	werner	37
129			void keycache_release (int cleanup);
130			gpgme_error_t keycache_update (int is_sec, const char *keyid);
131	twoaday	151	gpgme_error_t keycache_init (const char pubring, const char secring);
132			gpg_keycache_t keycache_get_ctx (int _pub);
133	werner	37
134	twoaday	226	gpgme_error_t gpg_clip_sym_encrypt (void);
135	twoaday	109	const char *get_gpg_sigstat (gpgme_sigsum_t sum);
136	twoaday	175	int check_ultimate_trusted_key (void);
137	twoaday	214	bool secret_key_available (void);
138	werner	37
139			/-- wptGPGParser.cpp --/
140	twoaday	254	enum entry_t {
141			ENTRY_OPAQUE = 1,
142			ENTRY_SINGLE = 2,
143			ENTRY_MULTI = 3,
144			ENTRY_GROUP = 4,
145			};
146
147			struct gpg_option_s {
148			struct gpg_option_s *next;
149			char *name;
150			char *val;
151			unsigned int used:1;
152			int type;
153			};
154			typedef struct gpg_option_s *gpg_option_t;
155
156			struct gpg_member_s {
157			struct gpg_member_s * next;
158			char *name;
159			unsigned int used:1;
160			};
161			typedef struct gpg_member_s *gpg_member_t;
162
163			struct gpg_group_s {
164			struct gpg_group_s *next;
165			struct gpg_member_s *list;
166			char *name;
167			unsigned int used:1;
168			};
169			typedef struct gpg_group_s *gpg_group_t;
170
171			struct gpg_optfile_s {
172			struct gpg_option_s *list;
173			struct gpg_group_s *grp;
174			};
175			typedef struct gpg_optfile_s *gpg_optfile_t;
176
177	werner	37	/* find */
178			gpg_group_t find_group( gpg_optfile_t opt, const char *str );
179			gpg_option_t find_option( gpg_optfile_t opt, const char *str );
180			gpg_member_t find_member( gpg_optfile_t opt, const char grp, const char str );
181			/* delete */
182			int delete_group( gpg_optfile_t opt, const char *str );
183			int delete_member( gpg_optfile_t opt, const char grp, const char str );
184			int delete_option( gpg_optfile_t opt, const char *str );
185			/* add */
186			int modify_entry( gpg_optfile_t opt, int type, const char name, const char val );
187			int add_entry( gpg_optfile_t opt, int type, const char name, const char val );
188			int add_member( gpg_optfile_t opt, const char grp, const char str );
189			int add_group( gpg_optfile_t opt, const char *str );
190			/* high-level */
191			int parse_gpg_options( const char file, gpg_optfile_t r_opt );
192			int commit_gpg_options( const char *file, gpg_optfile_t opt );
193			void release_gpg_options( gpg_optfile_t opt );
194			/* memory */
195			void release_group( gpg_group_t grp );
196
197			/-- wptPassphraseCB.cpp --/
198			enum passdlg_t {
199	twoaday	182	PASSDLG_REPEAT = 0,
200			PASSDLG_INIT = 1,
201			PASSDLG_STRICT = 2,
202	twoaday	229	PASSDLG_NOTEMPTY= 4,
203			PASSDLG_WARN_UTF8=8,
204	werner	37	};
205
206			void set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx,
207			int cmd, HWND hwnd, const char *title);
208			void release_gpg_passphrase_cb (passphrase_cb_s *cb);
209	twoaday	214	void release_gpg_recipients (gpgme_recipient_t *recipients);
210	werner	37
211	twoaday	225	char request_passphrase (const char title, int flags, int *ret_cancel);
212			char request_passphrase2 (const char title, int flags, int *ret_cancel);
213	twoaday	229	char request_key_passphrase (gpgme_key_t key, const char title,
214	twoaday	225	int *ret_cancel);
215	werner	37	const char * passphrase_cb (void opaque, const char desc, void *r_hd);
216			char * get_key_userid (const char *keyid);
217			int check_passwd_quality (const char *pass, int strict);
218
219	twoaday	121	/-- wptClipboard.cpp --/
220			gpgme_error_t gpg_clip_istext_avail (int *r_val);
221			gpgme_error_t gpg_clip_is_secured (int r_type, int r_val);
222			gpgme_error_t gpg_clip_get_pgptype (int *r_type);
223			gpgme_error_t gpg_clip_parse_pgpid (const char data, int r_type);
224
225			/* wptGPGMEData.cpp --*/
226			gpgme_error_t gpg_data_new_from_clipboard (gpgme_data_t *r_dh, int wraplen);
227			void gpg_data_release_and_set_clipboard (gpgme_data_t dh, int chg_ver);
228			size_t gpg_data_readline (gpgme_data_t dh, char *line, size_t nbytes);
229
230			gpgme_error_t gpg_data_release_and_set_file (gpgme_data_t dh, const char *fname);
231			gpgme_error_t gpg_data_mail_quote (gpgme_data_t *r_dh);
232			gpgme_error_t gpg_data_extract_plaintext (gpgme_data_t sig, gpgme_data_t *r_plain);
233	twoaday	143	void gpg_data_putc (gpgme_data_t hd, int c);
234	twoaday	121
235	werner	37	/-- wptGPGUtil.cpp --/
236			gpgme_error_t gpg_rebuild_cache (char **r_inf);
237			gpgme_error_t gpg_get_version (char **r_inf);
238			void gpg_set_debug_mode (int val);
239			gpgme_error_t gpg_export_seckey (const char keyid, const char outfile);
240	twoaday	39	gpgme_error_t gpg_manage_ownertrust (char **data, int do_export);
241	twoaday	133	gpgme_error_t gpg_get_photoid_data (const char keyid, char *r_status_data,
242			unsigned char **r_data,
243			unsigned long *ndata);
244	twoaday	208	gpgme_error_t gpg_revoke_cert (int desig_revoke, const char *inp_data,
245			const char keyid, char *r_revcert);
246	werner	37	gpgme_error_t gpg_decode_c_string (const char src, char *destp, size_t len);
247			gpgme_error_t gpg_import_key_list (const char fname, char *r_out);
248	twoaday	175	gpgme_error_t gpg_extract_keys (const char keyfile, const char *keys, DWORD nkeys,
249			char **new_keyfile);
250	werner	37	gpgme_error_t get_uat_validity (const char keyid, gpgme_validity_t r_valid);
251	twoaday	179	gpgme_error_t gpg_get_recipients (const char file, gpgme_recipient_t r_list);
252	twoaday	182	gpgme_error_t gpg_find_key_subpacket (const char *key, int subpktid,
253			char **value);
254	werner	37
255			#endif /* WPT_GPG_H */