2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2006 Hiroyuki Yamamoto & the Sylpheed-Claws team
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.
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.
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.
30 #include <glib/gi18n.h>
33 #include <sys/types.h>
44 #include "prefs_common.h"
46 #include "alertpanel.h"
47 #include "passphrase.h"
48 #include "prefs_gpg.h"
50 #include "select-keys.h"
52 static void sgpgme_disable_all(void)
54 /* FIXME: set a flag, so that we don't bother the user with failed
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)
61 gpgme_verify_result_t status = NULL;
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);
70 status = gpgme_op_verify_result(ctx);
75 SignatureStatus sgpgme_sigstat_gpgme_to_privacy(gpgme_ctx_t ctx, gpgme_verify_result_t status)
77 unsigned long validity = 0;
78 gpgme_signature_t sig = NULL;
80 if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
81 debug_print("system error\n");
82 return SIGNATURE_CHECK_FAILED;
86 debug_print("status == NULL\n");
87 return SIGNATURE_UNCHECKED;
89 sig = status->signatures;
92 debug_print("sig == NULL\n");
93 return SIGNATURE_UNCHECKED;
95 validity = sig->validity;
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:
110 return SIGNATURE_CHECK_FAILED;
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;
120 return SIGNATURE_CHECK_FAILED;
122 return SIGNATURE_CHECK_FAILED;
125 static const gchar *get_validity_str(unsigned long validity)
127 switch (gpg_err_code(validity)) {
128 case GPGME_VALIDITY_UNKNOWN:
130 case GPGME_VALIDITY_UNDEFINED:
131 return _("Undefined");
132 case GPGME_VALIDITY_NEVER:
134 case GPGME_VALIDITY_MARGINAL:
135 return _("Marginal");
136 case GPGME_VALIDITY_FULL:
138 case GPGME_VALIDITY_ULTIMATE:
139 return _("Ultimate");
145 static gchar *extract_name(const char *uid)
149 if (!strncmp(uid, "CN=", 3)) {
150 gchar *result = g_strdup(uid+3);
151 if (strstr(result, ","))
152 *(strstr(result, ",")) = '\0';
154 } else if (strstr(uid, ",CN=")) {
155 gchar *result = g_strdup(strstr(uid, ",CN=")+4);
156 if (strstr(result, ","))
157 *(strstr(result, ",")) = '\0';
160 return g_strdup(uid);
163 gchar *sgpgme_sigstat_info_short(gpgme_ctx_t ctx, gpgme_verify_result_t status)
165 gpgme_signature_t sig = NULL;
168 gchar *result = NULL;
169 gpgme_error_t err = 0;
170 static gboolean warned = FALSE;
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());
176 if (status == NULL) {
177 return g_strdup(_("The signature has not been checked."));
179 sig = status->signatures;
181 return g_strdup(_("The signature has not been checked."));
184 err = gpgme_get_key(ctx, sig->fpr, &key, 0);
185 if (gpg_err_code(err) == GPG_ERR_NO_AGENT) {
187 alertpanel_error(_("PGP Core: Can't get key - no gpg-agent running."));
189 g_warning(_("PGP Core: Can't get key - no gpg-agent running."));
193 uname = extract_name(key->uids->uid);
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);
204 case GPGME_VALIDITY_UNKNOWN:
205 case GPGME_VALIDITY_UNDEFINED:
206 case GPGME_VALIDITY_NEVER:
208 result = g_strdup_printf(_("Good signature (untrusted) from %s."), uname);
212 case GPG_ERR_SIG_EXPIRED:
213 result = g_strdup_printf(_("Expired signature from %s."), uname);
215 case GPG_ERR_KEY_EXPIRED:
216 result = g_strdup_printf(_("Expired key from %s."), uname);
218 case GPG_ERR_BAD_SIGNATURE:
219 result = g_strdup_printf(_("Bad signature from %s."), uname);
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);
228 result = g_strdup(_("The signature has not been checked."));
232 result = g_strdup(_("Error"));
237 gchar *sgpgme_sigstat_info_full(gpgme_ctx_t ctx, gpgme_verify_result_t status)
242 gpgme_signature_t sig = status->signatures;
244 siginfo = g_string_sized_new(64);
246 gpgme_user_id_t user = NULL;
249 const gchar *keytype, *keyid, *uid;
251 gpgme_get_key(ctx, sig->fpr, &key, 0);
255 keytype = gpgme_pubkey_algo_name(
256 key->subkeys->pubkey_algo);
257 keyid = key->subkeys->keyid;
264 g_string_append_printf(siginfo,
265 _("Signature made using %s key ID %s\n"),
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));
275 case GPG_ERR_SIG_EXPIRED:
276 g_string_append_printf(siginfo,
277 _("Expired signature from \"%s\"\n"),
280 case GPG_ERR_BAD_SIGNATURE:
281 g_string_append_printf(siginfo,
282 _("BAD signature from \"%s\"\n"),
288 if (sig->status != GPG_ERR_BAD_SIGNATURE) {
290 user = user ? user->next : NULL;
291 while (user != NULL) {
292 g_string_append_printf(siginfo,
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"),
308 else if (sig->pka_trust == 2 && sig->pka_address) {
309 g_string_append_printf(siginfo,
310 _("Verified signer's address is \"%s\"\n"),
312 /* FIXME: Compare the address to the
315 #endif /*HAVE_GPGME_PKA_TRUST*/
318 g_string_append(siginfo, "\n");
324 g_string_free(siginfo, FALSE);
328 gpgme_data_t sgpgme_data_from_mimeinfo(MimeInfo *mimeinfo)
330 gpgme_data_t data = NULL;
332 FILE *fp = g_fopen(mimeinfo->data.filename, "rb");
333 gchar *tmp_file = NULL;
338 tmp_file = get_tmp_file();
339 copy_file_part(fp, mimeinfo->offset, mimeinfo->length, tmp_file);
342 debug_print("tmp file %s\n", tmp_file);
344 err = gpgme_data_new_from_file(&data, tmp_file, 1);
348 debug_print("data %p (%d %d)\n", (void *)&data, mimeinfo->offset, mimeinfo->length);
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));
358 gpgme_data_t sgpgme_decrypt_verify(gpgme_data_t cipher, gpgme_verify_result_t *status, gpgme_ctx_t ctx)
360 struct passphrase_cb_info_s info;
364 memset (&info, 0, sizeof info);
366 if ((err = gpgme_data_new(&plain)) != GPG_ERR_NO_ERROR) {
368 privacy_set_error(_("Couldn't initialize data, %s"), gpgme_strerror(err));
372 if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
373 if (!getenv("GPG_AGENT_INFO")) {
375 gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
379 gpgme_set_passphrase_cb (ctx, NULL, &info);
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);
393 err = gpgme_data_rewind(plain);
395 debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
398 debug_print("decrypted.\n");
399 *status = gpgme_op_verify_result (ctx);
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);
409 err = gpgme_data_rewind(plain);
411 debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
414 debug_print("decrypted.\n");
415 *status = gpgme_op_verify_result (ctx);
420 gchar *sgpgme_get_encrypt_data(GSList *recp_names, gpgme_protocol_t proto)
422 SelectionResult result = KEY_SELECTION_CANCEL;
423 gpgme_key_t *keys = gpgmegtk_recipient_selection(recp_names, &result,
429 if (result == KEY_SELECTION_DONT)
430 return g_strdup("_DONT_ENCRYPT_");
435 gpgme_subkey_t skey = keys[i]->subkeys;
436 gchar *fpr = skey->fpr;
438 debug_print("adding %s\n", fpr);
439 tmp = g_strconcat(ret?ret:"", fpr, " ", NULL);
447 gboolean sgpgme_setup_signers(gpgme_ctx_t ctx, PrefsAccount *account)
449 GPGAccountConfig *config;
451 gpgme_signers_clear(ctx);
453 config = prefs_gpg_account_get_config(account);
455 switch(config->sign_key) {
456 case SIGN_KEY_DEFAULT:
457 debug_print("using default gnupg key\n");
459 case SIGN_KEY_BY_FROM:
460 debug_print("using key for %s\n", account->address);
462 case SIGN_KEY_CUSTOM:
463 debug_print("using key for %s\n", config->sign_key_id);
467 if (config->sign_key != SIGN_KEY_DEFAULT) {
469 gpgme_key_t key, key2;
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;
479 err = gpgme_op_keylist_start(ctx, keyid, 1);
481 err = gpgme_op_keylist_next(ctx, &key);
483 g_warning("setup_signers start: %s", gpgme_strerror(err));
484 privacy_set_error(_("Secret key not found (%s)"), gpgme_strerror(err));
488 err = gpgme_op_keylist_next(ctx, &key2);
490 g_warning("ambiguous specification of secret key '%s'\n",
492 privacy_set_error(_("Secret key specification is ambiguous"));
496 gpgme_op_keylist_end(ctx);
497 err = gpgme_signers_add(ctx, key);
498 gpgme_key_release(key);
501 g_warning("error adding secret key: %s\n", gpgme_strerror(err));
502 privacy_set_error(_("Error setting secret key: %s"), gpgme_strerror(err));
507 prefs_gpg_account_free_config(config);
511 prefs_gpg_account_free_config(config);
517 gpgme_engine_info_t engineInfo;
518 if (gpgme_check_version("1.0.0")) {
520 gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL));
523 gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL));
525 if (!gpgme_get_engine_info(&engineInfo)) {
527 debug_print("GpgME Protocol: %s\n"
528 "Version: %s (req %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) !=
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,
550 engineInfo->req_version);
552 alertpanel_error(_("Gpgme protocol '%s' is unusable "
553 "(unknown problem)"),
554 gpgme_get_protocol_name(engineInfo->protocol));
557 engineInfo = engineInfo->next;
561 sgpgme_disable_all();
563 if (prefs_gpg_get_config()->gpg_warning) {
566 val = alertpanel_full
568 _("GnuPG is not installed properly, or needs "
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;
581 gpgmegtk_free_passphrase();
584 void sgpgme_create_secret_key(PrefsAccount *account, gboolean ask_create)
586 AlertValue val = G_ALERTDEFAULT;
587 gchar *key_parms = NULL;
590 gchar *passphrase = NULL, *passphrase_second = NULL;
593 gpgme_error_t err = 0;
595 GtkWidget *window = NULL;
596 gpgme_genkey_result_t key;
599 account = account_get_default();
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"));
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();
621 name = g_strdup(account->name);
623 name = g_strdup(account->address);
625 email = g_strdup(account->address);
626 tmp = g_strdup_printf("%s <%s>", account->name?account->name:account->address, account->address);
628 passphrase = passphrase_mbox(tmp, NULL, prev_bad, 1);
629 if (passphrase == NULL) {
635 passphrase_second = passphrase_mbox(tmp, NULL, 0, 2);
636 if (passphrase_second == NULL) {
643 if (strcmp(passphrase, passphrase_second)) {
645 g_free(passphrase_second);
650 key_parms = g_strdup_printf("<GnupgKeyParms format=\"internal\">\n"
653 "Subkey-Type: ELG-E\n"
654 "Subkey-Length: 2048\n"
659 "</GnupgKeyParms>\n",
661 strlen(passphrase)?"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");
673 g_free(passphrase_second);
676 err = gpgme_new (&ctx);
678 alertpanel_error(_("Couldn't generate a new key pair: %s"),
679 gpgme_strerror(err));
685 window = label_window_create(_("Generating your new key pair... Please move the mouse "
686 "around to help generate entropy..."));
688 err = gpgme_op_genkey(ctx, key_parms, NULL, NULL);
691 gtk_widget_destroy(window);
694 alertpanel_error(_("Couldn't generate a new key pair: %s"), gpgme_strerror(err));
698 key = gpgme_op_genkey_result(ctx);
700 alertpanel_error(_("Couldn't generate a new key pair: unknown error"));
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 "
707 key->fpr ? key->fpr:"null");
708 AlertValue val = alertpanel(_("Key generated"), buf,
709 GTK_STOCK_NO, "+" GTK_STOCK_YES, NULL);
711 if (val == G_ALERTALTERNATE) {
713 gchar *cmd = g_strdup_printf("gpg --send-keys %s", key->fpr);
719 } else if (pid == 0) {
725 time_t start_wait = time(NULL);
728 if (waitpid(pid, &status, WNOHANG) == 0 || !WIFEXITED(status)) {
731 res = WEXITSTATUS(status);
734 if (time(NULL) - start_wait > 5) {
735 debug_print("SIGTERM'ing gpg\n");
738 if (time(NULL) - start_wait > 6) {
739 debug_print("SIGKILL'ing gpg\n");
746 alertpanel_notice(_("Key exported."));
748 alertpanel_error(_("Couldn't export key."));
752 alertpanel_error(_("Key export isn't implemented in Windows."));
756 prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
757 prefs_gpg_save_config();
761 gboolean sgpgme_has_secret_key(void)
763 gpgme_error_t err = 0;
767 err = gpgme_new (&ctx);
769 debug_print("err : %s\n", gpgme_strerror(err));
772 err = gpgme_op_keylist_start(ctx, NULL, TRUE);
774 err = gpgme_op_keylist_next(ctx, &key);
775 gpgme_op_keylist_end(ctx);
777 if (gpg_err_code(err) == GPG_ERR_EOF)
783 void sgpgme_check_create_key(void)
785 if (prefs_gpg_get_config()->gpg_ask_create_key &&
786 !sgpgme_has_secret_key()) {
787 sgpgme_create_secret_key(NULL, TRUE);
789 prefs_gpg_get_config()->gpg_ask_create_key = FALSE;
790 prefs_gpg_save_config();
793 #endif /* USE_GPGME */