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 #include <sys/types.h>
  34 #include <sys/wait.h>
  35 #ifndef G_OS_WIN32
  36 #include <sys/mman.h>
  37 #endif
  38 #if HAVE_LOCALE_H
  39 #  include <locale.h>
  40 #endif
  41
  42 #include "sgpgme.h"
  43 #include "privacy.h"
  44 #include "prefs_common.h"
  45 #include "utils.h"
  46 #include "alertpanel.h"
  47 #include "passphrase.h"
  48 #include "prefs_gpg.h"
  49 #include "account.h"
  50 #include "select-keys.h"
  51
  52 static void sgpgme_disable_all(void)
  53 {
  54     /* FIXME: set a flag, so that we don't bother the user with failed
  55      * gpgme messages */
  56 }
  57
  58 gpgme_verify_result_t sgpgme_verify_signature(gpgme_ctx_t ctx, gpgme_data_t sig,
  59                                         gpgme_data_t plain, gpgme_data_t dummy)
  60 {
  61         gpgme_verify_result_t status = NULL;
  62         gpgme_error_t err;
  63
  64         if ((err = gpgme_op_verify(ctx, sig, plain, dummy)) != GPG_ERR_NO_ERROR) {
  65                 debug_print("op_verify err %s\n", gpgme_strerror(err));
  66                 privacy_set_error(gpgme_strerror(err));
  67                 return GINT_TO_POINTER(-GPG_ERR_SYSTEM_ERROR);
  68
  69         }
  70         status = gpgme_op_verify_result(ctx);
  71
  72         return status;
  73 }
  74
  75 SignatureStatus sgpgme_sigstat_gpgme_to_privacy(gpgme_ctx_t ctx, gpgme_verify_result_t status)
  76 {
  77         unsigned long validity = 0;
  78         gpgme_signature_t sig = NULL;
  79
  80         if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
  81                 debug_print("system error\n");
  82                 return SIGNATURE_CHECK_FAILED;
  83         }
  84
  85         if (status == NULL) {
  86                 debug_print("status == NULL\n");
  87                 return SIGNATURE_UNCHECKED;
  88         }
  89         sig = status->signatures;
  90
  91         if (sig == NULL) {
  92                 debug_print("sig == NULL\n");
  93                 return SIGNATURE_UNCHECKED;
  94         }
  95         validity = sig->validity;
  96
  97         debug_print("err code %d\n", gpg_err_code(sig->status));
  98         switch (gpg_err_code(sig->status)) {
  99         case GPG_ERR_NO_ERROR:
 100                 switch (gpg_err_code(sig->validity)) {
 101                 case GPGME_VALIDITY_NEVER:
 102                         return SIGNATURE_INVALID;
 103                 case GPGME_VALIDITY_UNKNOWN:
 104                 case GPGME_VALIDITY_UNDEFINED:
 105                 case GPGME_VALIDITY_MARGINAL:
 106                 case GPGME_VALIDITY_FULL:
 107                 case GPGME_VALIDITY_ULTIMATE:
 108                         return SIGNATURE_OK;
 109                 default:
 110                         return SIGNATURE_CHECK_FAILED;
 111                 }
 112         case GPG_ERR_SIG_EXPIRED:
 113         case GPG_ERR_KEY_EXPIRED:
 114                 return SIGNATURE_WARN;
 115         case GPG_ERR_BAD_SIGNATURE:
 116                 return SIGNATURE_INVALID;
 117         case GPG_ERR_NO_PUBKEY:
 118                 return SIGNATURE_CHECK_FAILED;
 119         default:
 120                 return SIGNATURE_CHECK_FAILED;
 121         }
 122         return SIGNATURE_CHECK_FAILED;
 123 }
 124
 125 static const gchar *get_validity_str(unsigned long validity)
 126 {
 127         switch (gpg_err_code(validity)) {
 128         case GPGME_VALIDITY_UNKNOWN:
 129                 return _("Unknown");
 130         case GPGME_VALIDITY_UNDEFINED:
 131                 return _("Undefined");
 132         case GPGME_VALIDITY_NEVER:
 133                 return _("Never");
 134         case GPGME_VALIDITY_MARGINAL:
 135                 return _("Marginal");
 136         case GPGME_VALIDITY_FULL:
 137                 return _("Full");
 138         case GPGME_VALIDITY_ULTIMATE:
 139                 return _("Ultimate");
 140         default:
 141                 return _("Error");
 142         }
 143 }
 144
 145 static gchar *extract_name(const char *uid)
 146 {
 147         if (uid == NULL)
 148                 return NULL;
 149         if (!strncmp(uid, "CN=", 3)) {
 150                 gchar *result = g_strdup(uid+3);
 151                 if (strstr(result, ","))
 152                         *(strstr(result, ",")) = '\0';
 153                 return result;
 154         } else if (strstr(uid, ",CN=")) {
 155                 gchar *result = g_strdup(strstr(uid, ",CN=")+4);
 156                 if (strstr(result, ","))
 157                         *(strstr(result, ",")) = '\0';
 158                 return result;
 159         } else {
 160                 return g_strdup(uid);
 161         }
 162 }
 163 gchar *sgpgme_sigstat_info_short(gpgme_ctx_t ctx, gpgme_verify_result_t status)
 164 {
 165         gpgme_signature_t sig = NULL;
 166         gchar *uname = NULL;
 167         gpgme_key_t key;
 168         gchar *result = NULL;
 169         gpgme_error_t err = 0;
 170         static gboolean warned = FALSE;
 171
 172         if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
 173                 return g_strdup_printf(_("The signature can't be checked - %s"), privacy_get_error());
 174         }
 175
 176         if (status == NULL) {
 177                 return g_strdup(_("The signature has not been checked."));
 178         }
 179         sig = status->signatures;
 180         if (sig == NULL) {
 181                 return g_strdup(_("The signature has not been checked."));
 182         }
 183
 184         err = gpgme_get_key(ctx, sig->fpr, &key, 0);
 185         if (gpg_err_code(err) == GPG_ERR_NO_AGENT) {
 186                 if (!warned)
 187                         alertpanel_error(_("PGP Core: Can't get key - no gpg-agent running."));
 188                 else
 189                         g_warning(_("PGP Core: Can't get key - no gpg-agent running."));
 190                 warned = TRUE;
 191         }
 192         if (key)
 193                 uname = extract_name(key->uids->uid);
 194         else
 195                 uname = g_strdup("<?>");
 196         switch (gpg_err_code(sig->status)) {
 197         case GPG_ERR_NO_ERROR:
 198                 switch (gpg_err_code(sig->validity)) {
 199                 case GPGME_VALIDITY_MARGINAL:
 200                 case GPGME_VALIDITY_FULL:
 201                 case GPGME_VALIDITY_ULTIMATE:
 202                         result = g_strdup_printf(_("Good signature from %s."), uname);
 203                         break;
 204                 case GPGME_VALIDITY_UNKNOWN:
 205                 case GPGME_VALIDITY_UNDEFINED:
 206                 case GPGME_VALIDITY_NEVER:
 207                 default:
 208                         result = g_strdup_printf(_("Good signature (untrusted) from %s."), uname);
 209                         break;
 210                 }
 211                 break;
 212         case GPG_ERR_SIG_EXPIRED:
 213                 result = g_strdup_printf(_("Expired signature from %s."), uname);
 214                 break;
 215         case GPG_ERR_KEY_EXPIRED:
 216                 result = g_strdup_printf(_("Expired key from %s."), uname);
 217                 break;
 218         case GPG_ERR_BAD_SIGNATURE:
 219                 result = g_strdup_printf(_("Bad signature from %s."), uname);
 220                 break;
 221         case GPG_ERR_NO_PUBKEY: {
 222                 gchar *id = g_strdup(sig->fpr + strlen(sig->fpr)-8);
 223                 result = g_strdup_printf(_("Key 0x%s not available to verify this signature."), id);
 224                 g_free(id);
 225                 break;
 226                 }
 227         default:
 228                 result = g_strdup(_("The signature has not been checked."));
 229                 break;
 230         }
 231         if (result == NULL)
 232                 result = g_strdup(_("Error"));
 233         g_free(uname);
 234         return result;
 235 }
 236
 237 gchar *sgpgme_sigstat_info_full(gpgme_ctx_t ctx, gpgme_verify_result_t status)
 238 {
 239         gint i = 0;
 240         gchar *ret;
 241         GString *siginfo;
 242         gpgme_signature_t sig = status->signatures;
 243
 244         siginfo = g_string_sized_new(64);
 245         while (sig) {
 246                 gpgme_user_id_t user = NULL;
 247                 gpgme_key_t key;
 248
 249                 const gchar *keytype, *keyid, *uid;
 250
 251                 gpgme_get_key(ctx, sig->fpr, &key, 0);
 252
 253                 if (key) {
 254                         user = key->uids;
 255                         keytype = gpgme_pubkey_algo_name(
 256                                         key->subkeys->pubkey_algo);
 257                         keyid = key->subkeys->keyid;
 258                         uid = user->uid;
 259                 } else {
 260                         keytype = "?";
 261                         keyid = "?";
 262                         uid = "?";
 263                 }
 264                 g_string_append_printf(siginfo,
 265                         _("Signature made using %s key ID %s\n"),
 266                         keytype, keyid);
 267
 268                 switch (gpg_err_code(sig->status)) {
 269                 case GPG_ERR_NO_ERROR:
 270                 case GPG_ERR_KEY_EXPIRED:
 271                         g_string_append_printf(siginfo,
 272                                 _("Good signature from \"%s\" (Trust: %s)\n"),
 273                                 uid, get_validity_str(sig->validity));
 274                         break;
 275                 case GPG_ERR_SIG_EXPIRED:
 276                         g_string_append_printf(siginfo,
 277                                 _("Expired signature from \"%s\"\n"),
 278                                 uid);
 279                         break;
 280                 case GPG_ERR_BAD_SIGNATURE:
 281                         g_string_append_printf(siginfo,
 282                                 _("BAD signature from \"%s\"\n"),
 283                                 uid);
 284                         break;
 285                 default:
 286                         break;
 287                 }
 288                 if (sig->status != GPG_ERR_BAD_SIGNATURE) {
 289                         gint j = 1;
 290                         user = user ? user->next : NULL;
 291                         while (user != NULL) {
 292                                 g_string_append_printf(siginfo,
 293                                         _("                aka \"%s\"\n"),
 294                                         user->uid);
 295                                 j++;
 296                                 user = user->next;
 297                         }
 298                         g_string_append_printf(siginfo,
 299                                 _("Primary key fingerprint: %s\n"),
 300                                 sig ? sig->fpr: "?");
 301 #ifdef HAVE_GPGME_PKA_TRUST
 302                         if (sig->pka_trust == 1 && sig->pka_address) {
 303                                 g_string_append_printf(siginfo,
 304                                    _("WARNING: Signer's address \"%s\" "
 305                                       "does not match DNS entry\n"),
 306                                    sig->pka_address);
 307                         }
 308                         else if (sig->pka_trust == 2 && sig->pka_address) {
 309                                 g_string_append_printf(siginfo,
 310                                    _("Verified signer's address is \"%s\"\n"),
 311                                    sig->pka_address);
 312                                 /* FIXME: Compare the address to the
 313                                  * From: address.  */
 314                         }
 315 #endif /*HAVE_GPGME_PKA_TRUST*/
 316                 }
 317
 318                 g_string_append(siginfo, "\n");
 319                 i++;
 320                 sig = sig->next;
 321         }
 322
 323         ret = siginfo->str;
 324         g_string_free(siginfo, FALSE);
 325         return ret;
 326 }
 327
 328 gpgme_data_t sgpgme_data_from_mimeinfo(MimeInfo *mimeinfo)
 329 {
 330         gpgme_data_t data = NULL;
 331         gpgme_error_t err;
 332         FILE *fp = g_fopen(mimeinfo->data.filename, "rb");
 333         gchar *tmp_file = NULL;
 334
 335         if (!fp)
 336                 return NULL;
 337
 338         tmp_file = get_tmp_file();
 339         copy_file_part(fp, mimeinfo->offset, mimeinfo->length, tmp_file);
 340         fclose(fp);
 341         fp = NULL;
 342         debug_print("tmp file %s\n", tmp_file);
 343
 344         err = gpgme_data_new_from_file(&data, tmp_file, 1);
 345         g_unlink(tmp_file);
 346         g_free(tmp_file);
 347
 348         debug_print("data %p (%d %d)\n", (void *)&data, mimeinfo->offset, mimeinfo->length);
 349         if (err) {
 350                 debug_print ("gpgme_data_new_from_file failed: %s\n",
 351                              gpgme_strerror (err));
 352                 privacy_set_error(_("Couldn't get data from message, %s"), gpgme_strerror(err));
 353                 return NULL;
 354         }
 355         return data;
 356 }
 357
 358 gpgme_data_t sgpgme_decrypt_verify(gpgme_data_t cipher, gpgme_verify_result_t *status, gpgme_ctx_t ctx)
 359 {
 360         struct passphrase_cb_info_s info;
 361         gpgme_data_t plain;
 362         gpgme_error_t err;
 363
 364         memset (&info, 0, sizeof info);
 365
 366         if ((err = gpgme_data_new(&plain)) != GPG_ERR_NO_ERROR) {
 367                 gpgme_release(ctx);
 368                 privacy_set_error(_("Couldn't initialize data, %s"), gpgme_strerror(err));
 369                 return NULL;
 370         }
 371
 372         if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
 373                 if (!getenv("GPG_AGENT_INFO")) {
 374                         info.c = ctx;
 375                         gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
 376                 }
 377         } else {
 378                 info.c = ctx;
 379                 gpgme_set_passphrase_cb (ctx, NULL, &info);
 380         }
 381
 382
 383         if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
 384                 err = gpgme_op_decrypt_verify(ctx, cipher, plain);
 385                 if (err != GPG_ERR_NO_ERROR) {
 386                         debug_print("can't decrypt (%s)\n", gpgme_strerror(err));
 387                         privacy_set_error("%s", gpgme_strerror(err));
 388                         gpgmegtk_free_passphrase();
 389                         gpgme_data_release(plain);
 390                         return NULL;
 391                 }
 392
 393                 err = gpgme_data_rewind(plain);
 394                 if (err) {
 395                         debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
 396                 }
 397
 398                 debug_print("decrypted.\n");
 399                 *status = gpgme_op_verify_result (ctx);
 400         } else {
 401                 err = gpgme_op_decrypt(ctx, cipher, plain);
 402                 if (err != GPG_ERR_NO_ERROR) {
 403                         debug_print("can't decrypt (%s)\n", gpgme_strerror(err));
 404                         gpgmegtk_free_passphrase();
 405                         gpgme_data_release(plain);
 406                         return NULL;
 407                 }
 408
 409                 err = gpgme_data_rewind(plain);
 410                 if (err) {
 411                         debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
 412                 }
 413
 414                 debug_print("decrypted.\n");
 415                 *status = gpgme_op_verify_result (ctx);
 416         }
 417         return plain;
 418 }
 419
 420 gchar *sgpgme_get_encrypt_data(GSList *recp_names, gpgme_protocol_t proto)
 421 {
 422         SelectionResult result = KEY_SELECTION_CANCEL;
 423         gpgme_key_t *keys = gpgmegtk_recipient_selection(recp_names, &result,
 424                                 proto);
 425         gchar *ret = NULL;
 426         int i = 0;
 427
 428         if (!keys) {
 429                 if (result == KEY_SELECTION_DONT)
 430                         return g_strdup("_DONT_ENCRYPT_");
 431                 else
 432                         return NULL;
 433         }
 434         while (keys[i]) {
 435                 gpgme_subkey_t skey = keys[i]->subkeys;
 436                 gchar *fpr = skey->fpr;
 437                 gchar *tmp = NULL;
 438                 debug_print("adding %s\n", fpr);
 439                 tmp = g_strconcat(ret?ret:"", fpr, " ", NULL);
 440                 g_free(ret);
 441                 ret = tmp;
 442                 i++;
 443         }
 444         return ret;
 445 }
 446
 447 gboolean sgpgme_setup_signers(gpgme_ctx_t ctx, PrefsAccount *account)
 448 {
 449         GPGAccountConfig *config;
 450
 451         gpgme_signers_clear(ctx);
 452
 453         config = prefs_gpg_account_get_config(account);
 454
 455         switch(config->sign_key) {
 456         case SIGN_KEY_DEFAULT:
 457                 debug_print("using default gnupg key\n");
 458                 break;
 459         case SIGN_KEY_BY_FROM:
 460                 debug_print("using key for %s\n", account->address);
 461                 break;
 462         case SIGN_KEY_CUSTOM:
 463                 debug_print("using key for %s\n", config->sign_key_id);
 464                 break;
 465         }
 466
 467         if (config->sign_key != SIGN_KEY_DEFAULT) {
 468                 gchar *keyid;
 469                 gpgme_key_t key, key2;
 470                 gpgme_error_t err;
 471
 472                 if (config->sign_key == SIGN_KEY_BY_FROM)
 473                         keyid = account->address;
 474                 else if (config->sign_key == SIGN_KEY_CUSTOM)
 475                         keyid = config->sign_key_id;
 476                 else
 477                         goto bail;
 478
 479                 err = gpgme_op_keylist_start(ctx, keyid, 1);
 480                 if (!err)
 481                         err = gpgme_op_keylist_next(ctx, &key);
 482                 if (err) {
 483                         g_warning("setup_signers start: %s", gpgme_strerror(err));
 484                         privacy_set_error(_("Secret key not found (%s)"), gpgme_strerror(err));
 485                         goto bail;
 486                 }
 487
 488                 err = gpgme_op_keylist_next(ctx, &key2);
 489                 if (!err) {
 490                         g_warning("ambiguous specification of secret key '%s'\n",
 491                                 keyid);
 492                         privacy_set_error(_("Secret key specification is ambiguous"));
 493                         goto bail;
 494                 }
 495
 496                 gpgme_op_keylist_end(ctx);
 497                 err = gpgme_signers_add(ctx, key);
 498                 gpgme_key_release(key);
 499
 500                 if (err) {
 501                         g_warning("error adding secret key: %s\n", gpgme_strerror(err));
 502                         privacy_set_error(_("Error setting secret key: %s"), gpgme_strerror(err));
 503                         goto bail;
 504                 }
 505         }
 506
 507         prefs_gpg_account_free_config(config);
 508
 509         return TRUE;
 510 bail:
 511         prefs_gpg_account_free_config(config);
 512         return FALSE;
 513 }
 514
 515 void sgpgme_init()
 516 {
 517         gpgme_engine_info_t engineInfo;
 518         if (gpgme_check_version("1.0.0")) {
 519 #ifdef LC_CTYPE
 520                 gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL));
 521 #endif
 522 #ifdef LC_MESSAGES
 523                 gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL));
 524 #endif
 525                 if (!gpgme_get_engine_info(&engineInfo)) {
 526                         while (engineInfo) {
 527                                 debug_print("GpgME Protocol: %s\n"
 528                                             "Version: %s (req %s)\n"
 529                                             "Executable: %s\n",
 530                                         gpgme_get_protocol_name(engineInfo->protocol),
 531                                         engineInfo->version ? engineInfo->version:"???",
 532                                         engineInfo->req_version ? engineInfo->req_version:"???",
 533                                         engineInfo->file_name ? engineInfo->file_name:"???");
 534                                 if (engineInfo->protocol == GPGME_PROTOCOL_OpenPGP
 535                                 &&  gpgme_engine_check_version(engineInfo->protocol) !=
 536                                         GPG_ERR_NO_ERROR) {
 537                                         if (engineInfo->file_name && !engineInfo->version) {
 538                                                 alertpanel_error(_("Gpgme protocol '%s' is unusable: "
 539                                                                    "Engine '%s' isn't installed properly."),
 540                                                                    gpgme_get_protocol_name(engineInfo->protocol),
 541                                                                    engineInfo->file_name);
 542                                         } else if (engineInfo->file_name && engineInfo->version
 543                                           && engineInfo->req_version) {
 544                                                 alertpanel_error(_("Gpgme protocol '%s' is unusable: "
 545                                                                    "Engine '%s' version %s is installed, "
 546                                                                    "but version %s is required.\n"),
 547                                                                    gpgme_get_protocol_name(engineInfo->protocol),
 548                                                                    engineInfo->file_name,
 549                                                                    engineInfo->version,
 550                                                                    engineInfo->req_version);
 551                                         } else {
 552                                                 alertpanel_error(_("Gpgme protocol '%s' is unusable "
 553                                                                    "(unknown problem)"),
 554                                                                    gpgme_get_protocol_name(engineInfo->protocol));
 555                                         }
 556                                 }
 557                                 engineInfo = engineInfo->next;
 558                         }
 559                 }
 560         } else {
 561                 sgpgme_disable_all();
 562
 563                 if (prefs_gpg_get_config()->gpg_warning) {
 564                         AlertValue val;
 565
 566                         val = alertpanel_full
 567                                 (_("Warning"),
 568                                  _("GnuPG is not installed properly, or needs "
 569                                  "to be upgraded.\n"
 570                                  "OpenPGP support disabled."),
 571                                  GTK_STOCK_CLOSE, NULL, NULL, TRUE, NULL,
 572                                  ALERT_WARNING, G_ALERTDEFAULT);
 573                         if (val & G_ALERTDISABLE)
 574                                 prefs_gpg_get_config()->gpg_warning = FALSE;
 575                 }
 576         }
 577 }
 578
 579 void sgpgme_done()
 580 {
 581         gpgmegtk_free_passphrase();
 582 }
 583
 584 void sgpgme_create_secret_key(PrefsAccount *account, gboolean ask_create)
 585 {
 586         AlertValue val = G_ALERTDEFAULT;
 587         gchar *key_parms = NULL;
 588         gchar *name = NULL;
 589         gchar *email = NULL;
 590         gchar *passphrase = NULL, *passphrase_second = NULL;
 591         gint prev_bad = 0;
 592         gchar *tmp = NULL;
 593         gpgme_error_t err = 0;
 594         gpgme_ctx_t ctx;
 595         GtkWidget *window = NULL;
 596         gpgme_genkey_result_t key;
 597
 598         if (account == NULL)
 599                 account = account_get_default();
 600
 601         if (account->address == NULL) {
 602                 alertpanel_error(_("You have to save the account's information with \"OK\" "
 603                                    "before being able to generate a key pair.\n"));
 604                 return;
 605         }
 606         if (ask_create) {
 607                 val = alertpanel(_("No PGP key found"),
 608                                 _("Sylpheed-Claws did not find a secret PGP key, "
 609                                   "which means that you won't be able to sign "
 610                                   "emails or receive encrypted emails.\n"
 611                                   "Do you want to create a new key pair now?"),
 612                                   GTK_STOCK_NO, "+" GTK_STOCK_YES, NULL);
 613                 if (val == G_ALERTDEFAULT) {
 614                         prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
 615                         prefs_gpg_save_config();
 616                         return;
 617                 }
 618         }
 619
 620         if (account->name) {
 621                 name = g_strdup(account->name);
 622         } else {
 623                 name = g_strdup(account->address);
 624         }
 625         email = g_strdup(account->address);
 626         tmp = g_strdup_printf("%s <%s>", account->name?account->name:account->address, account->address);
 627 again:
 628         passphrase = passphrase_mbox(tmp, NULL, prev_bad, 1);
 629         if (passphrase == NULL) {
 630                 g_free(tmp);
 631                 g_free(email);
 632                 g_free(name);
 633                 return;
 634         }
 635         passphrase_second = passphrase_mbox(tmp, NULL, 0, 2);
 636         if (passphrase_second == NULL) {
 637                 g_free(tmp);
 638                 g_free(email);
 639                 g_free(passphrase);
 640                 g_free(name);
 641                 return;
 642         }
 643         if (strcmp(passphrase, passphrase_second)) {
 644                 g_free(passphrase);
 645                 g_free(passphrase_second);
 646                 prev_bad = 1;
 647                 goto again;
 648         }
 649
 650         key_parms = g_strdup_printf("<GnupgKeyParms format=\"internal\">\n"
 651                                         "Key-Type: DSA\n"
 652                                         "Key-Length: 1024\n"
 653                                         "Subkey-Type: ELG-E\n"
 654                                         "Subkey-Length: 2048\n"
 655                                         "Name-Real: %s\n"
 656                                         "Name-Email: %s\n"
 657                                         "Expire-Date: 0\n"
 658                                         "%s%s%s"
 659                                         "</GnupgKeyParms>\n",
 660                                         name, email,
 661                                         strlen(passphrase)?"Passphrase: ":"",
 662                                         passphrase,
 663                                         strlen(passphrase)?"\n":"");
 664 #ifndef G_PLATFORM_WIN32
 665         if (mlock(passphrase, strlen(passphrase)) == -1)
 666                 debug_print("couldn't lock passphrase\n");
 667         if (mlock(passphrase_second, strlen(passphrase_second)) == -1)
 668                 debug_print("couldn't lock passphrase2\n");
 669 #endif
 670         g_free(tmp);
 671         g_free(email);
 672         g_free(name);
 673         g_free(passphrase_second);
 674         g_free(passphrase);
 675
 676         err = gpgme_new (&ctx);
 677         if (err) {
 678                 alertpanel_error(_("Couldn't generate a new key pair: %s"),
 679                                  gpgme_strerror(err));
 680                 g_free(key_parms);
 681                 return;
 682         }
 683
 684
 685         window = label_window_create(_("Generating your new key pair... Please move the mouse "
 686                               "around to help generate entropy..."));
 687
 688         err = gpgme_op_genkey(ctx, key_parms, NULL, NULL);
 689         g_free(key_parms);
 690
 691         gtk_widget_destroy(window);
 692
 693         if (err) {
 694                 alertpanel_error(_("Couldn't generate a new key pair: %s"), gpgme_strerror(err));
 695                 gpgme_release(ctx);
 696                 return;
 697         }
 698         key = gpgme_op_genkey_result(ctx);
 699         if (key == NULL) {
 700                 alertpanel_error(_("Couldn't generate a new key pair: unknown error"));
 701                 gpgme_release(ctx);
 702                 return;
 703         } else {
 704                 gchar *buf = g_strdup_printf(_("Your new key pair has been generated. "
 705                                     "Its fingerprint is:\n%s\n\nDo you want to export it "
 706                                     "to a keyserver?"),
 707                                     key->fpr ? key->fpr:"null");
 708                 AlertValue val = alertpanel(_("Key generated"), buf,
 709                                   GTK_STOCK_NO, "+" GTK_STOCK_YES, NULL);
 710                 g_free(buf);
 711                 if (val == G_ALERTALTERNATE) {
 712 #ifndef G_OS_WIN32
 713                         gchar *cmd = g_strdup_printf("gpg --no-tty --send-keys %s", key->fpr);
 714                         int res = 0;
 715                         pid_t pid = 0;
 716                         pid = fork();
 717                         if (pid == -1) {
 718                                 res = -1;
 719                         } else if (pid == 0) {
 720                                 /* son */
 721                                 res = system(cmd);
 722                                 res = WEXITSTATUS(res);
 723                                 _exit(res);
 724                         } else {
 725                                 int status = 0;
 726                                 time_t start_wait = time(NULL);
 727                                 res = -1;
 728                                 do {
 729                                         if (waitpid(pid, &status, WNOHANG) == 0 || !WIFEXITED(status)) {
 730                                                 usleep(200000);
 731                                         } else {
 732                                                 res = WEXITSTATUS(status);
 733                                                 break;
 734                                         }
 735                                         if (time(NULL) - start_wait > 5) {
 736                                                 debug_print("SIGTERM'ing gpg\n");
 737                                                 kill(pid, SIGTERM);
 738                                         }
 739                                         if (time(NULL) - start_wait > 6) {
 740                                                 debug_print("SIGKILL'ing gpg\n");
 741                                                 kill(pid, SIGKILL);
 742                                                 break;
 743                                         }
 744                                 } while(1);
 745                         }
 746                         if (res == 0) {
 747                                 alertpanel_notice(_("Key exported."));
 748                         } else {
 749                                 alertpanel_error(_("Couldn't export key."));
 750                         }
 751                         g_free(cmd);
 752 #else
 753                         alertpanel_error(_("Key export isn't implemented in Windows."));
 754 #endif
 755                 }
 756         }
 757         prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
 758         prefs_gpg_save_config();
 759         gpgme_release(ctx);
 760 }
 761
 762 gboolean sgpgme_has_secret_key(void)
 763 {
 764         gpgme_error_t err = 0;
 765         gpgme_ctx_t ctx;
 766         gpgme_key_t key;
 767
 768         err = gpgme_new (&ctx);
 769         if (err) {
 770                 debug_print("err : %s\n", gpgme_strerror(err));
 771                 return TRUE;
 772         }
 773         err = gpgme_op_keylist_start(ctx, NULL, TRUE);
 774         if (!err)
 775                 err = gpgme_op_keylist_next(ctx, &key);
 776         gpgme_op_keylist_end(ctx);
 777         gpgme_release(ctx);
 778         if (gpg_err_code(err) == GPG_ERR_EOF)
 779                 return FALSE;
 780         else
 781                 return TRUE;
 782 }
 783
 784 void sgpgme_check_create_key(void)
 785 {
 786         if (prefs_gpg_get_config()->gpg_ask_create_key &&
 787             !sgpgme_has_secret_key()) {
 788                 sgpgme_create_secret_key(NULL, TRUE);
 789         } else {
 790                 prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
 791                 prefs_gpg_save_config();
 792         }
 793 }
 794 #endif /* USE_GPGME */