| 1 |
werner |
36 |
/* wptGPGME.cpp - WinPT GPGME interface |
| 2 |
twoaday |
217 |
* Copyright (C) 2001-2006 Timo Schulz |
| 3 |
werner |
36 |
* |
| 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 |
|
|
#ifdef HAVE_CONFIG_H |
| 21 |
|
|
#include <config.h> |
| 22 |
|
|
#endif |
| 23 |
|
|
|
| 24 |
|
|
#include <sys/types.h> |
| 25 |
|
|
#include <windows.h> |
| 26 |
|
|
|
| 27 |
werner |
47 |
#include "resource.h" |
| 28 |
werner |
36 |
#include "wptNLS.h" |
| 29 |
|
|
#include "wptGPG.h" |
| 30 |
|
|
#include "wptErrors.h" |
| 31 |
|
|
#include "wptTypes.h" |
| 32 |
|
|
#include "wptW32API.h" |
| 33 |
|
|
#include "wptVersion.h" |
| 34 |
|
|
#include "wptCommonCtl.h" |
| 35 |
|
|
#include "wptContext.h" |
| 36 |
|
|
#include "wptRegistry.h" |
| 37 |
|
|
#include "wptDlgs.h" |
| 38 |
|
|
|
| 39 |
|
|
#include "openpgp.h" |
| 40 |
|
|
|
| 41 |
|
|
BOOL CALLBACK keycache_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam); |
| 42 |
|
|
void progress_cleanup (progress_filter_s * pfx); |
| 43 |
|
|
|
| 44 |
twoaday |
211 |
/* Global GPG key cache contexts. */ |
| 45 |
werner |
36 |
static gpg_keycache_t pub = NULL; |
| 46 |
|
|
static gpg_keycache_t sec = NULL; |
| 47 |
|
|
static char *gpg_secring = NULL; |
| 48 |
|
|
|
| 49 |
|
|
|
| 50 |
twoaday |
217 |
int |
| 51 |
|
|
keycache_not_available (void) |
| 52 |
|
|
{ |
| 53 |
|
|
return pub == NULL; |
| 54 |
werner |
36 |
} |
| 55 |
|
|
|
| 56 |
|
|
/* Release both key cache objects. If @cleanup is 1, |
| 57 |
|
|
also release other global structs. */ |
| 58 |
|
|
void |
| 59 |
|
|
keycache_release (int cleanup) |
| 60 |
|
|
{ |
| 61 |
twoaday |
255 |
char tmpbuf[64]; |
| 62 |
werner |
36 |
int n = gpg_keycache_get_size (pub); |
| 63 |
|
|
|
| 64 |
|
|
/* XXX: update the value when the cache has changed. */ |
| 65 |
|
|
sprintf (tmpbuf, "%d", n); |
| 66 |
|
|
set_reg_key (HKEY_CURRENT_USER, "Software\\WinPT", "nKeys", tmpbuf); |
| 67 |
|
|
|
| 68 |
|
|
if (pub) { |
| 69 |
|
|
gpg_keycache_release (pub); |
| 70 |
|
|
pub = NULL; |
| 71 |
|
|
} |
| 72 |
|
|
if (sec) { |
| 73 |
|
|
gpg_keycache_release (sec); |
| 74 |
|
|
sec = NULL; |
| 75 |
|
|
} |
| 76 |
twoaday |
211 |
if (cleanup) |
| 77 |
|
|
safe_free (gpg_secring); |
| 78 |
werner |
36 |
} |
| 79 |
|
|
|
| 80 |
|
|
|
| 81 |
|
|
/* Update the key with the keyid @keyid in the key cache. |
| 82 |
|
|
If @is_sec is 1, the secret key cache is used. */ |
| 83 |
|
|
gpgme_error_t |
| 84 |
|
|
keycache_update (int is_sec, const char *keyid) |
| 85 |
|
|
{ |
| 86 |
|
|
gpg_keycache_t ctx = pub; |
| 87 |
|
|
gpgme_error_t err; |
| 88 |
|
|
|
| 89 |
|
|
if (is_sec) |
| 90 |
|
|
ctx = sec; |
| 91 |
|
|
err = gpg_keycache_update_key (ctx, is_sec, pub, keyid); |
| 92 |
|
|
if (is_sec) |
| 93 |
|
|
gpg_keycache_prepare_single (ctx, keyid, NULL, gpg_secring); |
| 94 |
|
|
return err; |
| 95 |
|
|
} |
| 96 |
|
|
|
| 97 |
|
|
|
| 98 |
|
|
/* Initialize both cache contexts. Use @pubring for the public |
| 99 |
|
|
keyring and @secring for the secret keyring. */ |
| 100 |
|
|
gpgme_error_t |
| 101 |
|
|
keycache_init (const char *pubring, const char *secring) |
| 102 |
|
|
{ |
| 103 |
|
|
struct progress_filter_s pfx; |
| 104 |
|
|
gpgme_error_t err; |
| 105 |
|
|
int val = 0; |
| 106 |
|
|
char *p; |
| 107 |
|
|
|
| 108 |
|
|
if (secring != NULL) { |
| 109 |
|
|
free_if_alloc (gpg_secring); |
| 110 |
|
|
gpg_secring = get_gnupg_keyring (0, NO_STRICT); |
| 111 |
|
|
} |
| 112 |
twoaday |
150 |
|
| 113 |
werner |
36 |
p = get_reg_entry (HKEY_CURRENT_USER, "Software\\WinPT", "nKeys"); |
| 114 |
|
|
if (p && *p != ' ') { |
| 115 |
|
|
val = atoi (p); |
| 116 |
twoaday |
181 |
free_if_alloc (p); |
| 117 |
werner |
36 |
} |
| 118 |
|
|
|
| 119 |
twoaday |
181 |
memset (&pfx, 0, sizeof (pfx)); |
| 120 |
twoaday |
217 |
keycache_release (0); /* Release old contexts first. */ |
| 121 |
twoaday |
150 |
|
| 122 |
werner |
36 |
err = gpg_keycache_new (&pub); |
| 123 |
|
|
if (err) |
| 124 |
|
|
return err; |
| 125 |
|
|
if (val != 0) |
| 126 |
|
|
gpg_keycache_set_cb (pub, progress_callback, &pfx, val); |
| 127 |
|
|
err = gpg_keycache_new (&sec); |
| 128 |
|
|
if (!err) |
| 129 |
|
|
err = gpg_keycache_init (pub, NULL, 0); |
| 130 |
|
|
if (!err) |
| 131 |
twoaday |
175 |
err = gpg_keycache_init (sec, NULL, 1); |
| 132 |
|
|
if (!err && pubring && *pubring) |
| 133 |
twoaday |
181 |
err = gpg_keycache_prepare (pub, pubring, NULL); |
| 134 |
twoaday |
175 |
if (!err && secring && * secring) |
| 135 |
|
|
err = gpg_keycache_prepare (sec, NULL, secring); |
| 136 |
werner |
36 |
if (!err) |
| 137 |
|
|
gpg_keycache_sync (pub, sec); |
| 138 |
|
|
if (val != 0) |
| 139 |
|
|
progress_cleanup (&pfx); |
| 140 |
|
|
return err; |
| 141 |
|
|
} |
| 142 |
|
|
|
| 143 |
|
|
|
| 144 |
|
|
/* Return the public cache context if @is_pub is set |
| 145 |
|
|
the secre cache context otherwise. */ |
| 146 |
|
|
gpg_keycache_t |
| 147 |
|
|
keycache_get_ctx (int is_pub) |
| 148 |
|
|
{ |
| 149 |
twoaday |
208 |
gpg_keycache_t ctx; |
| 150 |
|
|
|
| 151 |
|
|
ctx = is_pub? pub : sec; |
| 152 |
|
|
if (!ctx) |
| 153 |
|
|
BUG (0); |
| 154 |
|
|
return ctx; |
| 155 |
werner |
36 |
} |
| 156 |
|
|
|
| 157 |
|
|
|
| 158 |
|
|
/* Get the GPG key with keyid @keyid from the cache. Return it |
| 159 |
|
|
in @r_key on success. */ |
| 160 |
twoaday |
211 |
static gpgme_error_t |
| 161 |
twoaday |
217 |
get_key_from_cache (const char *keyid, int secret, gpgme_key_t *r_key, |
| 162 |
|
|
struct keycache_s **c) |
| 163 |
werner |
36 |
{ |
| 164 |
|
|
gpg_keycache_t cache; |
| 165 |
|
|
gpgme_error_t err; |
| 166 |
|
|
int mode = secret? KEYCACHE_PRV : KEYCACHE_PUB; |
| 167 |
|
|
|
| 168 |
|
|
if (!keyid) |
| 169 |
twoaday |
211 |
return gpg_error (GPG_ERR_INV_VALUE); |
| 170 |
werner |
36 |
if (r_key) |
| 171 |
|
|
*r_key = NULL; |
| 172 |
|
|
cache = keycache_get_ctx (mode); |
| 173 |
|
|
if (!c) |
| 174 |
|
|
err = gpg_keycache_find_key (cache, keyid, 0, r_key); |
| 175 |
|
|
else |
| 176 |
|
|
err = gpg_keycache_find_key2 (cache, keyid, 0, r_key, c); |
| 177 |
twoaday |
211 |
return err; |
| 178 |
werner |
36 |
} |
| 179 |
|
|
|
| 180 |
|
|
|
| 181 |
twoaday |
217 |
/* Release the internal key structure. |
| 182 |
|
|
If allocated is 0, assume fixed cache item. */ |
| 183 |
|
|
void |
| 184 |
|
|
winpt_release_pubkey (winpt_key_s *k) |
| 185 |
werner |
36 |
{ |
| 186 |
twoaday |
217 |
/*log_box ("debug", 0, "alloc %d", k->allocated);*/ |
| 187 |
|
|
if (!k->allocated) |
| 188 |
|
|
return; |
| 189 |
|
|
gpg_keycache_item_release (k->ext); |
| 190 |
|
|
k->ext = NULL; |
| 191 |
|
|
k->allocated = 0; |
| 192 |
werner |
36 |
} |
| 193 |
|
|
|
| 194 |
|
|
|
| 195 |
|
|
/* Search the public key with @keyid as the keyid in the cache and |
| 196 |
|
|
return the item in @k. */ |
| 197 |
twoaday |
211 |
gpgme_error_t |
| 198 |
werner |
36 |
winpt_get_pubkey (const char *keyid, winpt_key_s *k) |
| 199 |
|
|
{ |
| 200 |
twoaday |
217 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 201 |
werner |
36 |
|
| 202 |
twoaday |
217 |
if (pub) |
| 203 |
|
|
err = get_key_from_cache (keyid, 0, &k->ctx, &k->ext); |
| 204 |
|
|
else |
| 205 |
|
|
err = gpg_keycache_fetch_key (keyid, 0, &k->ctx, &k->ext); |
| 206 |
twoaday |
211 |
if (err) |
| 207 |
|
|
return err; |
| 208 |
werner |
36 |
k->is_v3 = k->ctx->subkeys->pubkey_algo == GPGME_PK_RSA && |
| 209 |
|
|
strlen (k->ctx->subkeys->fpr) == 32; |
| 210 |
|
|
k->is_protected = k->ext->gloflags.is_protected; |
| 211 |
twoaday |
212 |
k->keyid = k->ctx->subkeys->keyid+8; |
| 212 |
|
|
k->uid = k->ext->uids->uid; |
| 213 |
twoaday |
217 |
k->allocated = pub? 0 : 1; |
| 214 |
twoaday |
211 |
return 0; |
| 215 |
werner |
36 |
} |
| 216 |
|
|
|
| 217 |
|
|
|
| 218 |
twoaday |
211 |
gpgme_error_t |
| 219 |
werner |
36 |
winpt_get_seckey (const char *keyid, winpt_key_s *k) |
| 220 |
|
|
{ |
| 221 |
twoaday |
211 |
gpgme_error_t err; |
| 222 |
|
|
|
| 223 |
twoaday |
217 |
if (sec) |
| 224 |
|
|
err = get_key_from_cache (keyid, 1, &k->ctx, &k->ext); |
| 225 |
|
|
else |
| 226 |
|
|
err = gpg_keycache_fetch_key (keyid, 1, &k->ctx, &k->ext); |
| 227 |
twoaday |
211 |
if (err) |
| 228 |
|
|
return err; |
| 229 |
werner |
36 |
k->is_v3 = k->ctx->subkeys->pubkey_algo == GPGME_PK_RSA && |
| 230 |
|
|
strlen (k->ctx->subkeys->fpr) == 32; |
| 231 |
|
|
k->is_protected = k->ext->gloflags.is_protected; |
| 232 |
twoaday |
212 |
k->keyid = k->ctx->subkeys->keyid+8; |
| 233 |
|
|
k->uid = k->ext->uids->uid; |
| 234 |
twoaday |
219 |
k->allocated = sec? 0 : 1; |
| 235 |
twoaday |
211 |
return 0; |
| 236 |
werner |
36 |
} |
| 237 |
|
|
|
| 238 |
|
|
|
| 239 |
twoaday |
211 |
gpgme_error_t |
| 240 |
werner |
36 |
get_pubkey (const char *keyid, gpgme_key_t *ret_key) |
| 241 |
|
|
{ |
| 242 |
twoaday |
217 |
return get_key_from_cache (keyid, 0, ret_key, NULL); |
| 243 |
werner |
36 |
} |
| 244 |
|
|
|
| 245 |
|
|
|
| 246 |
twoaday |
211 |
gpgme_error_t |
| 247 |
werner |
36 |
get_seckey (const char *keyid, gpgme_key_t *ret_skey) |
| 248 |
|
|
{ |
| 249 |
twoaday |
217 |
return get_key_from_cache (keyid, 1, ret_skey, NULL); |
| 250 |
werner |
36 |
} |
| 251 |
|
|
|
| 252 |
|
|
|
| 253 |
|
|
|
| 254 |
twoaday |
109 |
/* Map the signature summary in @sum to signature status table index. |
| 255 |
|
|
Return value: index to table. */ |
| 256 |
|
|
static int |
| 257 |
|
|
sigsum_to_index (gpgme_sigsum_t sum) |
| 258 |
|
|
{ |
| 259 |
|
|
if ((sum & GPGME_SIGSUM_VALID) && (sum & GPGME_SIGSUM_KEY_REVOKED)) |
| 260 |
|
|
return 7; |
| 261 |
|
|
if ((sum & GPGME_SIGSUM_VALID) && (sum & GPGME_SIGSUM_SIG_EXPIRED)) |
| 262 |
|
|
return 6; |
| 263 |
|
|
if (sum & GPGME_SIGSUM_GREEN) |
| 264 |
|
|
return 1; |
| 265 |
|
|
else if (sum & GPGME_SIGSUM_RED) |
| 266 |
|
|
return 2; |
| 267 |
|
|
else if (sum & GPGME_SIGSUM_KEY_MISSING) |
| 268 |
|
|
return 3; |
| 269 |
|
|
return 0; |
| 270 |
|
|
} |
| 271 |
|
|
|
| 272 |
|
|
|
| 273 |
|
|
/* Return a humand readable description for the signature status @sum. */ |
| 274 |
|
|
const char* |
| 275 |
|
|
get_gpg_sigstat (gpgme_sigsum_t sum) |
| 276 |
|
|
{ |
| 277 |
|
|
const char *gpg_sigstat[] = { |
| 278 |
twoaday |
231 |
_("Error during verification process"), |
| 279 |
|
|
_("The signature is good"), |
| 280 |
twoaday |
109 |
_("The signature is BAD!"), |
| 281 |
twoaday |
231 |
_("The signature could not be checked due to a missing key"), |
| 282 |
|
|
_("No valid OpenPGP signature"), |
| 283 |
twoaday |
109 |
_("Signature Error"), |
| 284 |
|
|
_("Good Signature (Expired Key)"), |
| 285 |
|
|
_("Good Signature (Revoked Key)"), |
| 286 |
|
|
NULL |
| 287 |
|
|
}; |
| 288 |
|
|
const unsigned int mask = 8; |
| 289 |
|
|
|
| 290 |
|
|
return gpg_sigstat[sigsum_to_index (sum) % mask]; |
| 291 |
|
|
} |
| 292 |
twoaday |
175 |
|
| 293 |
|
|
|
| 294 |
twoaday |
214 |
bool |
| 295 |
|
|
secret_key_available (void) |
| 296 |
|
|
{ |
| 297 |
twoaday |
219 |
if (!sec || gpg_keycache_get_size (sec) == 0) |
| 298 |
twoaday |
214 |
return false; |
| 299 |
|
|
return true; |
| 300 |
|
|
} |
Parent Directory
| 
Revision Log