src/plugins/pgpcore/sgpgme.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto & the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #ifdef USE_GPGME
  25
  26 #include <time.h>
  27 #include <gtk/gtk.h>
  28 #include <gpgme.h>
  29 #include <glib.h>
  30 #include <glib/gi18n.h>
  31 #include <stdio.h>
  32 #include <errno.h>
  33 #ifndef G_OS_WIN32
  34 #include <sys/mman.h>
  35 #endif
  36 #if HAVE_LOCALE_H
  37 #  include <locale.h>
  38 #endif
  39
  40 #include "sgpgme.h"
  41 #include "privacy.h"
  42 #include "prefs_common.h"
  43 #include "utils.h"
  44 #include "alertpanel.h"
  45 #include "passphrase.h"
  46 #include "prefs_gpg.h"
  47 #include "account.h"
  48 #include "select-keys.h"
  49
  50 static void sgpgme_disable_all(void)
  51 {
  52     /* FIXME: set a flag, so that we don't bother the user with failed
  53      * gpgme messages */
  54 }
  55
  56 gpgme_verify_result_t sgpgme_verify_signature(gpgme_ctx_t ctx, gpgme_data_t sig,
  57                                         gpgme_data_t plain, gpgme_data_t dummy)
  58 {
  59         gpgme_verify_result_t status = NULL;
  60         gpgme_error_t err;
  61
  62         if ((err = gpgme_op_verify(ctx, sig, plain, dummy)) != GPG_ERR_NO_ERROR) {
  63                 debug_print("op_verify err %s\n", gpgme_strerror(err));
  64                 privacy_set_error(gpgme_strerror(err));
  65                 return GINT_TO_POINTER(-GPG_ERR_SYSTEM_ERROR);
  66
  67         }
  68         status = gpgme_op_verify_result(ctx);
  69
  70         return status;
  71 }
  72
  73 SignatureStatus sgpgme_sigstat_gpgme_to_privacy(gpgme_ctx_t ctx, gpgme_verify_result_t status)
  74 {
  75         unsigned long validity = 0;
  76         gpgme_signature_t sig = NULL;
  77
  78         if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
  79                 debug_print("system error\n");
  80                 return SIGNATURE_CHECK_FAILED;
  81         }
  82
  83         if (status == NULL) {
  84                 debug_print("status == NULL\n");
  85                 return SIGNATURE_UNCHECKED;
  86         }
  87         sig = status->signatures;
  88
  89         if (sig == NULL) {
  90                 debug_print("sig == NULL\n");
  91                 return SIGNATURE_UNCHECKED;
  92         }
  93         validity = sig->validity;
  94
  95         debug_print("err code %d\n", gpg_err_code(sig->status));
  96         switch (gpg_err_code(sig->status)) {
  97         case GPG_ERR_NO_ERROR:
  98                 switch (gpg_err_code(sig->validity)) {
  99                 case GPGME_VALIDITY_NEVER:
 100                         return SIGNATURE_INVALID;
 101                 case GPGME_VALIDITY_UNKNOWN:
 102                 case GPGME_VALIDITY_UNDEFINED:
 103                 case GPGME_VALIDITY_MARGINAL:
 104                 case GPGME_VALIDITY_FULL:
 105                 case GPGME_VALIDITY_ULTIMATE:
 106                         return SIGNATURE_OK;
 107                 default:
 108                         return SIGNATURE_CHECK_FAILED;
 109                 }
 110         case GPG_ERR_SIG_EXPIRED:
 111         case GPG_ERR_KEY_EXPIRED:
 112                 return SIGNATURE_WARN;
 113         case GPG_ERR_BAD_SIGNATURE:
 114                 return SIGNATURE_INVALID;
 115         case GPG_ERR_NO_PUBKEY:
 116                 return SIGNATURE_CHECK_FAILED;
 117         default:
 118                 return SIGNATURE_CHECK_FAILED;
 119         }
 120         return SIGNATURE_CHECK_FAILED;
 121 }
 122
 123 static const gchar *get_validity_str(unsigned long validity)
 124 {
 125         switch (gpg_err_code(validity)) {
 126         case GPGME_VALIDITY_UNKNOWN:
 127                 return _("Unknown");
 128         case GPGME_VALIDITY_UNDEFINED:
 129                 return _("Undefined");
 130         case GPGME_VALIDITY_NEVER:
 131                 return _("Never");
 132         case GPGME_VALIDITY_MARGINAL:
 133                 return _("Marginal");
 134         case GPGME_VALIDITY_FULL:
 135                 return _("Full");
 136         case GPGME_VALIDITY_ULTIMATE:
 137                 return _("Ultimate");
 138         default:
 139                 return _("Error");
 140         }
 141 }
 142
 143 static gchar *extract_name(const char *uid)
 144 {
 145         if (uid == NULL)
 146                 return NULL;
 147         if (!strncmp(uid, "CN=", 3)) {
 148                 gchar *result = g_strdup(uid+3);
 149                 if (strstr(result, ","))
 150                         *(strstr(result, ",")) = '\0';
 151                 return result;
 152         } else if (strstr(uid, ",CN=")) {
 153                 gchar *result = g_strdup(strstr(uid, ",CN=")+4);
 154                 if (strstr(result, ","))
 155                         *(strstr(result, ",")) = '\0';
 156                 return result;
 157         } else {
 158                 return g_strdup(uid);
 159         }
 160 }
 161 gchar *sgpgme_sigstat_info_short(gpgme_ctx_t ctx, gpgme_verify_result_t status)
 162 {
 163         gpgme_signature_t sig = NULL;
 164         gchar *uname = NULL;
 165         gpgme_key_t key;
 166         gchar *result = NULL;
 167         gpgme_error_t err = 0;
 168         static gboolean warned = FALSE;
 169
 170         if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
 171                 return g_strdup_printf(_("The signature can't be checked - %s"), privacy_get_error());
 172         }
 173
 174         if (status == NULL) {
 175                 return g_strdup(_("The signature has not been checked."));
 176         }
 177         sig = status->signatures;
 178         if (sig == NULL) {
 179                 return g_strdup(_("The signature has not been checked."));
 180         }
 181
 182         err = gpgme_get_key(ctx, sig->fpr, &key, 0);
 183         if (gpg_err_code(err) == GPG_ERR_NO_AGENT) {
 184                 if (!warned)
 185                         alertpanel_error(_("PGP Core: Can't get key - no gpg-agent running."));
 186                 else
 187                         g_warning(_("PGP Core: Can't get key - no gpg-agent running."));
 188                 warned = TRUE;
 189         }
 190         if (key)
 191                 uname = extract_name(key->uids->uid);
 192         else
 193                 uname = g_strdup("<?>");
 194         switch (gpg_err_code(sig->status)) {
 195         case GPG_ERR_NO_ERROR:
 196                 switch (gpg_err_code(sig->validity)) {
 197                 case GPGME_VALIDITY_MARGINAL:
 198                 case GPGME_VALIDITY_FULL:
 199                 case GPGME_VALIDITY_ULTIMATE:
 200                         result = g_strdup_printf(_("Good signature from %s."), uname);
 201                         break;
 202                 case GPGME_VALIDITY_UNKNOWN:
 203                 case GPGME_VALIDITY_UNDEFINED:
 204                 case GPGME_VALIDITY_NEVER:
 205                 default:
 206                         result = g_strdup_printf(_("Good signature (untrusted) from %s."), uname);
 207                         break;
 208                 }
 209                 break;
 210         case GPG_ERR_SIG_EXPIRED:
 211                 result = g_strdup_printf(_("Expired signature from %s."), uname);
 212                 break;
 213         case GPG_ERR_KEY_EXPIRED:
 214                 result = g_strdup_printf(_("Expired key from %s."), uname);
 215                 break;
 216         case GPG_ERR_BAD_SIGNATURE:
 217                 result = g_strdup_printf(_("Bad signature from %s."), uname);
 218                 break;
 219         case GPG_ERR_NO_PUBKEY: {
 220                 gchar *id = g_strdup(sig->fpr + strlen(sig->fpr)-8);
 221                 result = g_strdup_printf(_("Key 0x%s not available to verify this signature."), id);
 222                 g_free(id);
 223                 break;
 224                 }
 225         default:
 226                 result = g_strdup(_("The signature has not been checked."));
 227                 break;
 228         }
 229         if (result == NULL)
 230                 result = g_strdup(_("Error"));
 231         g_free(uname);
 232         return result;
 233 }
 234
 235 gchar *sgpgme_sigstat_info_full(gpgme_ctx_t ctx, gpgme_verify_result_t status)
 236 {
 237         gint i = 0;
 238         gchar *ret;
 239         GString *siginfo;
 240         gpgme_signature_t sig = status->signatures;
 241
 242         siginfo = g_string_sized_new(64);
 243         while (sig) {
 244                 gpgme_user_id_t user = NULL;
 245                 gpgme_key_t key;
 246
 247                 const gchar *keytype, *keyid, *uid;
 248
 249                 gpgme_get_key(ctx, sig->fpr, &key, 0);
 250
 251                 if (key) {
 252                         user = key->uids;
 253                         keytype = gpgme_pubkey_algo_name(
 254                                         key->subkeys->pubkey_algo);
 255                         keyid = key->subkeys->keyid;
 256                         uid = user->uid;
 257                 } else {
 258                         keytype = "?";
 259                         keyid = "?";
 260                         uid = "?";
 261                 }
 262                 g_string_append_printf(siginfo,
 263                         _("Signature made using %s key ID %s\n"),
 264                         keytype, keyid);
 265
 266                 switch (gpg_err_code(sig->status)) {
 267                 case GPG_ERR_NO_ERROR:
 268                 case GPG_ERR_KEY_EXPIRED:
 269                         g_string_append_printf(siginfo,
 270                                 _("Good signature from \"%s\" (Trust: %s)\n"),
 271                                 uid, get_validity_str(sig->validity));
 272                         break;
 273                 case GPG_ERR_SIG_EXPIRED:
 274                         g_string_append_printf(siginfo,
 275                                 _("Expired signature from \"%s\"\n"),
 276                                 uid);
 277                         break;
 278                 case GPG_ERR_BAD_SIGNATURE:
 279                         g_string_append_printf(siginfo,
 280                                 _("BAD signature from \"%s\"\n"),
 281                                 uid);
 282                         break;
 283                 default:
 284                         break;
 285                 }
 286                 if (sig->status != GPG_ERR_BAD_SIGNATURE) {
 287                         gint j = 1;
 288                         user = user ? user->next : NULL;
 289                         while (user != NULL) {
 290                                 g_string_append_printf(siginfo,
 291                                         _("                aka \"%s\"\n"),
 292                                         user->uid);
 293                                 j++;
 294                                 user = user->next;
 295                         }
 296                         g_string_append_printf(siginfo,
 297                                 _("Primary key fingerprint: %s\n"),
 298                                 sig ? sig->fpr: "?");
 299 #ifdef HAVE_GPGME_PKA_TRUST
 300                         if (sig->pka_trust == 1 && sig->pka_address) {
 301                                 g_string_append_printf(siginfo,
 302                                    _("WARNING: Signer's address \"%s\" "
 303                                       "does not match DNS entry\n"),
 304                                    sig->pka_address);
 305                         }
 306                         else if (sig->pka_trust == 2 && sig->pka_address) {
 307                                 g_string_append_printf(siginfo,
 308                                    _("Verified signer's address is \"%s\"\n"),
 309                                    sig->pka_address);
 310                                 /* FIXME: Compare the address to the
 311                                  * From: address.  */
 312                         }
 313 #endif /*HAVE_GPGME_PKA_TRUST*/
 314                 }
 315
 316                 g_string_append(siginfo, "\n");
 317                 i++;
 318                 sig = sig->next;
 319         }
 320
 321         ret = siginfo->str;
 322         g_string_free(siginfo, FALSE);
 323         return ret;
 324 }
 325
 326 gpgme_data_t sgpgme_data_from_mimeinfo(MimeInfo *mimeinfo)
 327 {
 328         gpgme_data_t data = NULL;
 329         gpgme_error_t err;
 330         FILE *fp = g_fopen(mimeinfo->data.filename, "rb");
 331         gchar *tmp_file = NULL;
 332
 333         if (!fp)
 334                 return NULL;
 335
 336         tmp_file = get_tmp_file();
 337         copy_file_part(fp, mimeinfo->offset, mimeinfo->length, tmp_file);
 338         fclose(fp);
 339         fp = NULL;
 340         debug_print("tmp file %s\n", tmp_file);
 341
 342         err = gpgme_data_new_from_file(&data, tmp_file, 1);
 343         g_unlink(tmp_file);
 344         g_free(tmp_file);
 345
 346         debug_print("data %p (%d %d)\n", (void *)&data, mimeinfo->offset, mimeinfo->length);
 347         if (err) {
 348                 debug_print ("gpgme_data_new_from_file failed: %s\n",
 349                              gpgme_strerror (err));
 350                 privacy_set_error(_("Couldn't get data from message, %s"), gpgme_strerror(err));
 351                 return NULL;
 352         }
 353         return data;
 354 }
 355
 356 gpgme_data_t sgpgme_decrypt_verify(gpgme_data_t cipher, gpgme_verify_result_t *status, gpgme_ctx_t ctx)
 357 {
 358         struct passphrase_cb_info_s info;
 359         gpgme_data_t plain;
 360         gpgme_error_t err;
 361
 362         memset (&info, 0, sizeof info);
 363
 364         if ((err = gpgme_data_new(&plain)) != GPG_ERR_NO_ERROR) {
 365                 gpgme_release(ctx);
 366                 privacy_set_error(_("Couldn't initialize data, %s"), gpgme_strerror(err));
 367                 return NULL;
 368         }
 369
 370         if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
 371                 if (!getenv("GPG_AGENT_INFO")) {
 372                         info.c = ctx;
 373                         gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
 374                 }
 375         } else {
 376                 info.c = ctx;
 377                 gpgme_set_passphrase_cb (ctx, NULL, &info);
 378         }
 379
 380
 381         if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
 382                 err = gpgme_op_decrypt_verify(ctx, cipher, plain);
 383                 if (err != GPG_ERR_NO_ERROR) {
 384                         debug_print("can't decrypt (%s)\n", gpgme_strerror(err));
 385                         privacy_set_error("%s", gpgme_strerror(err));
 386                         gpgmegtk_free_passphrase();
 387                         gpgme_data_release(plain);
 388                         return NULL;
 389                 }
 390
 391                 err = gpgme_data_rewind(plain);
 392                 if (err) {
 393                         debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
 394                 }
 395
 396                 debug_print("decrypted.\n");
 397                 *status = gpgme_op_verify_result (ctx);
 398         } else {
 399                 err = gpgme_op_decrypt(ctx, cipher, plain);
 400                 if (err != GPG_ERR_NO_ERROR) {
 401                         debug_print("can't decrypt (%s)\n", gpgme_strerror(err));
 402                         gpgmegtk_free_passphrase();
 403                         gpgme_data_release(plain);
 404                         return NULL;
 405                 }
 406
 407                 err = gpgme_data_rewind(plain);
 408                 if (err) {
 409                         debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
 410                 }
 411
 412                 debug_print("decrypted.\n");
 413                 *status = gpgme_op_verify_result (ctx);
 414         }
 415         return plain;
 416 }
 417
 418 gchar *sgpgme_get_encrypt_data(GSList *recp_names, gpgme_protocol_t proto)
 419 {
 420         SelectionResult result = KEY_SELECTION_CANCEL;
 421         gpgme_key_t *keys = gpgmegtk_recipient_selection(recp_names, &result,
 422                                 proto);
 423         gchar *ret = NULL;
 424         int i = 0;
 425
 426         if (!keys) {
 427                 if (result == KEY_SELECTION_DONT)
 428                         return g_strdup("_DONT_ENCRYPT_");
 429                 else
 430                         return NULL;
 431         }
 432         while (keys[i]) {
 433                 gpgme_subkey_t skey = keys[i]->subkeys;
 434                 gchar *fpr = skey->fpr;
 435                 gchar *tmp = NULL;
 436                 debug_print("adding %s\n", fpr);
 437                 tmp = g_strconcat(ret?ret:"", fpr, " ", NULL);
 438                 g_free(ret);
 439                 ret = tmp;
 440                 i++;
 441         }
 442         return ret;
 443 }
 444
 445 gboolean sgpgme_setup_signers(gpgme_ctx_t ctx, PrefsAccount *account)
 446 {
 447         GPGAccountConfig *config;
 448
 449         gpgme_signers_clear(ctx);
 450
 451         config = prefs_gpg_account_get_config(account);
 452
 453         switch(config->sign_key) {
 454         case SIGN_KEY_DEFAULT:
 455                 debug_print("using default gnupg key\n");
 456                 break;
 457         case SIGN_KEY_BY_FROM:
 458                 debug_print("using key for %s\n", account->address);
 459                 break;
 460         case SIGN_KEY_CUSTOM:
 461                 debug_print("using key for %s\n", config->sign_key_id);
 462                 break;
 463         }
 464
 465         if (config->sign_key != SIGN_KEY_DEFAULT) {
 466                 gchar *keyid;
 467                 gpgme_key_t key, key2;
 468                 gpgme_error_t err;
 469
 470                 if (config->sign_key == SIGN_KEY_BY_FROM)
 471                         keyid = account->address;
 472                 else if (config->sign_key == SIGN_KEY_CUSTOM)
 473                         keyid = config->sign_key_id;
 474                 else
 475                         goto bail;
 476
 477                 err = gpgme_op_keylist_start(ctx, keyid, 1);
 478                 if (!err)
 479                         err = gpgme_op_keylist_next(ctx, &key);
 480                 if (err) {
 481                         g_warning("setup_signers start: %s", gpgme_strerror(err));
 482                         privacy_set_error(_("Private key not found (%s)"), gpgme_strerror(err));
 483                         goto bail;
 484                 }
 485
 486                 err = gpgme_op_keylist_next(ctx, &key2);
 487                 if (!err) {
 488                         g_warning("ambiguous specification of private key '%s'\n",
 489                                 keyid);
 490                         privacy_set_error(_("Private key specification is ambiguous"));
 491                         goto bail;
 492                 }
 493
 494                 gpgme_op_keylist_end(ctx);
 495                 err = gpgme_signers_add(ctx, key);
 496                 gpgme_key_release(key);
 497
 498                 if (err) {
 499                         g_warning("error adding secret key: %s\n", gpgme_strerror(err));
 500                         privacy_set_error(_("Error setting private key: %s"), gpgme_strerror(err));
 501                         goto bail;
 502                 }
 503         }
 504
 505         prefs_gpg_account_free_config(config);
 506
 507         return TRUE;
 508 bail:
 509         prefs_gpg_account_free_config(config);
 510         return FALSE;
 511 }
 512
 513 void sgpgme_init()
 514 {
 515         gpgme_engine_info_t engineInfo;
 516         if (gpgme_check_version("1.0.0")) {
 517 #ifdef LC_CTYPE
 518                 gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL));
 519 #endif
 520 #ifdef LC_MESSAGES
 521                 gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL));
 522 #endif
 523                 if (!gpgme_get_engine_info(&engineInfo)) {
 524                         while (engineInfo) {
 525                                 debug_print("GpgME Protocol: %s\n"
 526                                             "Version: %s (req %s)\n"
 527                                             "Executable: %s\n",
 528                                         gpgme_get_protocol_name(engineInfo->protocol),
 529                                         engineInfo->version ? engineInfo->version:"???",
 530                                         engineInfo->req_version ? engineInfo->req_version:"???",
 531                                         engineInfo->file_name ? engineInfo->file_name:"???");
 532                                 if (engineInfo->protocol == GPGME_PROTOCOL_OpenPGP
 533                                 &&  gpgme_engine_check_version(engineInfo->protocol) !=
 534                                         GPG_ERR_NO_ERROR) {
 535                                         if (engineInfo->file_name && !engineInfo->version) {
 536                                                 alertpanel_error(_("Gpgme protocol '%s' is unusable: "
 537                                                                    "Engine '%s' isn't installed properly."),
 538                                                                    gpgme_get_protocol_name(engineInfo->protocol),
 539                                                                    engineInfo->file_name);
 540                                         } else if (engineInfo->file_name && engineInfo->version
 541                                           && engineInfo->req_version) {
 542                                                 alertpanel_error(_("Gpgme protocol '%s' is unusable: "
 543                                                                    "Engine '%s' version %s is installed, "
 544                                                                    "but version %s is required.\n"),
 545                                                                    gpgme_get_protocol_name(engineInfo->protocol),
 546                                                                    engineInfo->file_name,
 547                                                                    engineInfo->version,
 548                                                                    engineInfo->req_version);
 549                                         } else {
 550                                                 alertpanel_error(_("Gpgme protocol '%s' is unusable "
 551                                                                    "(unknown problem)"),
 552                                                                    gpgme_get_protocol_name(engineInfo->protocol));
 553                                         }
 554                                 }
 555                                 engineInfo = engineInfo->next;
 556                         }
 557                 }
 558         } else {
 559                 sgpgme_disable_all();
 560
 561                 if (prefs_gpg_get_config()->gpg_warning) {
 562                         AlertValue val;
 563
 564                         val = alertpanel_full
 565                                 (_("Warning"),
 566                                  _("GnuPG is not installed properly, or needs "
 567                                  "to be upgraded.\n"
 568                                  "OpenPGP support disabled."),
 569                                  GTK_STOCK_CLOSE, NULL, NULL, TRUE, NULL,
 570                                  ALERT_WARNING, G_ALERTDEFAULT);
 571                         if (val & G_ALERTDISABLE)
 572                                 prefs_gpg_get_config()->gpg_warning = FALSE;
 573                 }
 574         }
 575 }
 576
 577 void sgpgme_done()
 578 {
 579         gpgmegtk_free_passphrase();
 580 }
 581
 582 void sgpgme_create_secret_key(PrefsAccount *account)
 583 {
 584         AlertValue val = alertpanel(_("No PGP key found"),
 585                         _("Sylpheed-Claws did not find a secret PGP key, "
 586                           "which means that you won't be able to sign "
 587                           "emails or receive encrypted emails.\n"
 588                           "Do you want to create a secret key now?"),
 589                           GTK_STOCK_NO, "+" GTK_STOCK_YES, NULL);
 590         gchar *key_parms = NULL;
 591         gchar *name = NULL;
 592         gchar *email = NULL;
 593         gchar *passphrase = NULL, *passphrase_second = NULL;
 594         gint prev_bad = 0;
 595         gchar *tmp = NULL;
 596         gpgme_error_t err = 0;
 597         gpgme_ctx_t ctx;
 598         GtkWidget *window = NULL;
 599         gpgme_genkey_result_t key;
 600
 601         if (account == NULL)
 602                 account = account_get_default();
 603
 604         if (val == G_ALERTDEFAULT) {
 605                 prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
 606                 prefs_gpg_save_config();
 607                 return;
 608         }
 609
 610         if (account->name) {
 611                 name = g_strdup(account->name);
 612         } else {
 613                 name = g_strdup(account->address);
 614         }
 615         email = g_strdup(account->address);
 616         tmp = g_strdup_printf("%s <%s>", account->name?account->name:account->address, account->address);
 617 again:
 618         passphrase = passphrase_mbox(tmp, NULL, prev_bad, 1);
 619         if (passphrase == NULL) {
 620                 g_free(tmp);
 621                 g_free(email);
 622                 g_free(name);
 623                 return;
 624         }
 625         passphrase_second = passphrase_mbox(tmp, NULL, 0, 2);
 626         if (passphrase_second == NULL) {
 627                 g_free(tmp);
 628                 g_free(email);
 629                 g_free(passphrase);
 630                 g_free(name);
 631                 return;
 632         }
 633         if (strcmp(passphrase, passphrase_second)) {
 634                 g_free(passphrase);
 635                 g_free(passphrase_second);
 636                 prev_bad = 1;
 637                 goto again;
 638         }
 639
 640         key_parms = g_strdup_printf("<GnupgKeyParms format=\"internal\">\n"
 641                                         "Key-Type: DSA\n"
 642                                         "Key-Length: 1024\n"
 643                                         "Subkey-Type: ELG-E\n"
 644                                         "Subkey-Length: 2048\n"
 645                                         "Name-Real: %s\n"
 646                                         "Name-Email: %s\n"
 647                                         "Expire-Date: 0\n"
 648                                         "Passphrase: %s\n"
 649                                         "</GnupgKeyParms>\n",
 650                                         name, email, passphrase);
 651 #ifndef G_PLATFORM_WIN32
 652         if (mlock(passphrase, strlen(passphrase)) == -1)
 653                 debug_print("couldn't lock passphrase\n");
 654         if (mlock(passphrase_second, strlen(passphrase_second)) == -1)
 655                 debug_print("couldn't lock passphrase2\n");
 656 #endif
 657         g_free(tmp);
 658         g_free(email);
 659         g_free(name);
 660         g_free(passphrase_second);
 661         g_free(passphrase);
 662
 663         err = gpgme_new (&ctx);
 664         if (err) {
 665                 alertpanel_error(_("Couldn't generate new key: %s"), gpgme_strerror(err));
 666                 g_free(key_parms);
 667                 return;
 668         }
 669
 670
 671         window = label_window_create(_("Generating your new key... Please move the mouse "
 672                               "around to help generate entropy..."));
 673
 674         err = gpgme_op_genkey(ctx, key_parms, NULL, NULL);
 675         g_free(key_parms);
 676
 677         gtk_widget_destroy(window);
 678
 679         if (err) {
 680                 alertpanel_error(_("Couldn't generate new key: %s"), gpgme_strerror(err));
 681                 gpgme_release(ctx);
 682                 return;
 683         }
 684         key = gpgme_op_genkey_result(ctx);
 685         if (key == NULL) {
 686                 alertpanel_error(_("Couldn't generate new key: unknown error"));
 687                 gpgme_release(ctx);
 688                 return;
 689         } else {
 690                 alertpanel_notice(_("Your secret key has been generated. "
 691                                     "Its fingerprint is:\n%s"),
 692                                     key->fpr ? key->fpr:"null");
 693         }
 694         prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
 695         prefs_gpg_save_config();
 696         gpgme_release(ctx);
 697 }
 698
 699 gboolean sgpgme_has_secret_key(void)
 700 {
 701         gpgme_error_t err = 0;
 702         gpgme_ctx_t ctx;
 703         gpgme_key_t key;
 704
 705         err = gpgme_new (&ctx);
 706         if (err) {
 707                 debug_print("err : %s\n", gpgme_strerror(err));
 708                 return TRUE;
 709         }
 710         err = gpgme_op_keylist_start(ctx, NULL, TRUE);
 711         if (!err)
 712                 err = gpgme_op_keylist_next(ctx, &key);
 713         gpgme_op_keylist_end(ctx);
 714         gpgme_release(ctx);
 715         if (gpg_err_code(err) == GPG_ERR_EOF)
 716                 return FALSE;
 717         else
 718                 return TRUE;
 719 }
 720
 721 void sgpgme_check_create_key(void)
 722 {
 723         if (prefs_gpg_get_config()->gpg_ask_create_key &&
 724             !sgpgme_has_secret_key()) {
 725                 sgpgme_create_secret_key(NULL);
 726         } else {
 727                 prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
 728                 prefs_gpg_save_config();
 729         }
 730 }
 731 #endif /* USE_GPGME */