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>
39 #include "prefs_common.h"
41 #include "alertpanel.h"
42 #include "passphrase.h"
43 #include "prefs_gpg.h"
44 #include "select-keys.h"
46 static void sgpgme_disable_all(void)
48 /* FIXME: set a flag, so that we don't bother the user with failed
52 gpgme_verify_result_t sgpgme_verify_signature(gpgme_ctx_t ctx, gpgme_data_t sig,
53 gpgme_data_t plain, gpgme_data_t dummy)
55 gpgme_verify_result_t status = NULL;
58 if ((err = gpgme_op_verify(ctx, sig, plain, dummy)) != GPG_ERR_NO_ERROR) {
59 debug_print("op_verify err %s\n", gpgme_strerror(err));
60 privacy_set_error(gpgme_strerror(err));
61 return GINT_TO_POINTER(-GPG_ERR_SYSTEM_ERROR);
64 status = gpgme_op_verify_result(ctx);
69 SignatureStatus sgpgme_sigstat_gpgme_to_privacy(gpgme_ctx_t ctx, gpgme_verify_result_t status)
71 unsigned long validity = 0;
72 gpgme_signature_t sig = NULL;
74 if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
75 debug_print("system error\n");
76 return SIGNATURE_CHECK_FAILED;
80 debug_print("status == NULL\n");
81 return SIGNATURE_UNCHECKED;
83 sig = status->signatures;
86 debug_print("sig == NULL\n");
87 return SIGNATURE_UNCHECKED;
89 validity = sig->validity;
91 debug_print("err code %d\n", gpg_err_code(sig->status));
92 switch (gpg_err_code(sig->status)) {
93 case GPG_ERR_NO_ERROR:
94 switch (gpg_err_code(sig->validity)) {
95 case GPGME_VALIDITY_NEVER:
96 return SIGNATURE_INVALID;
97 case GPGME_VALIDITY_UNKNOWN:
98 case GPGME_VALIDITY_UNDEFINED:
99 case GPGME_VALIDITY_MARGINAL:
100 case GPGME_VALIDITY_FULL:
101 case GPGME_VALIDITY_ULTIMATE:
104 return SIGNATURE_CHECK_FAILED;
106 case GPG_ERR_SIG_EXPIRED:
107 case GPG_ERR_KEY_EXPIRED:
108 return SIGNATURE_WARN;
109 case GPG_ERR_BAD_SIGNATURE:
110 return SIGNATURE_INVALID;
111 case GPG_ERR_NO_PUBKEY:
112 return SIGNATURE_CHECK_FAILED;
114 return SIGNATURE_CHECK_FAILED;
116 return SIGNATURE_CHECK_FAILED;
119 static const gchar *get_validity_str(unsigned long validity)
121 switch (gpg_err_code(validity)) {
122 case GPGME_VALIDITY_UNKNOWN:
124 case GPGME_VALIDITY_UNDEFINED:
125 return _("Undefined");
126 case GPGME_VALIDITY_NEVER:
128 case GPGME_VALIDITY_MARGINAL:
129 return _("Marginal");
130 case GPGME_VALIDITY_FULL:
132 case GPGME_VALIDITY_ULTIMATE:
133 return _("Ultimate");
139 static gchar *extract_name(const char *uid)
143 if (!strncmp(uid, "CN=", 3)) {
144 gchar *result = g_strdup(uid+3);
145 if (strstr(result, ","))
146 *(strstr(result, ",")) = '\0';
148 } else if (strstr(uid, ",CN=")) {
149 gchar *result = g_strdup(strstr(uid, ",CN=")+4);
150 if (strstr(result, ","))
151 *(strstr(result, ",")) = '\0';
154 return g_strdup(uid);
157 gchar *sgpgme_sigstat_info_short(gpgme_ctx_t ctx, gpgme_verify_result_t status)
159 gpgme_signature_t sig = NULL;
162 gchar *result = NULL;
163 gpgme_error_t err = 0;
164 static gboolean warned = FALSE;
166 if (GPOINTER_TO_INT(status) == -GPG_ERR_SYSTEM_ERROR) {
167 return g_strdup_printf(_("The signature can't be checked - %s"), privacy_get_error());
170 if (status == NULL) {
171 return g_strdup(_("The signature has not been checked."));
173 sig = status->signatures;
175 return g_strdup(_("The signature has not been checked."));
178 err = gpgme_get_key(ctx, sig->fpr, &key, 0);
179 if (gpg_err_code(err) == GPG_ERR_NO_AGENT) {
181 alertpanel_error(_("PGP Core: Can't get key - no gpg-agent running."));
183 g_warning(_("PGP Core: Can't get key - no gpg-agent running."));
187 uname = extract_name(key->uids->uid);
189 uname = g_strdup("<?>");
190 switch (gpg_err_code(sig->status)) {
191 case GPG_ERR_NO_ERROR:
192 switch (gpg_err_code(sig->validity)) {
193 case GPGME_VALIDITY_MARGINAL:
194 case GPGME_VALIDITY_FULL:
195 case GPGME_VALIDITY_ULTIMATE:
196 result = g_strdup_printf(_("Good signature from %s."), uname);
198 case GPGME_VALIDITY_UNKNOWN:
199 case GPGME_VALIDITY_UNDEFINED:
200 case GPGME_VALIDITY_NEVER:
202 result = g_strdup_printf(_("Good signature (untrusted) from %s."), uname);
206 case GPG_ERR_SIG_EXPIRED:
207 result = g_strdup_printf(_("Expired signature from %s."), uname);
209 case GPG_ERR_KEY_EXPIRED:
210 result = g_strdup_printf(_("Expired key from %s."), uname);
212 case GPG_ERR_BAD_SIGNATURE:
213 result = g_strdup_printf(_("Bad signature from %s."), uname);
215 case GPG_ERR_NO_PUBKEY: {
216 gchar *id = g_strdup(sig->fpr + strlen(sig->fpr)-8);
217 result = g_strdup_printf(_("Key 0x%s not available to verify this signature."), id);
222 result = g_strdup(_("The signature has not been checked."));
226 result = g_strdup(_("Error"));
231 gchar *sgpgme_sigstat_info_full(gpgme_ctx_t ctx, gpgme_verify_result_t status)
236 gpgme_signature_t sig = status->signatures;
238 siginfo = g_string_sized_new(64);
240 gpgme_user_id_t user = NULL;
243 const gchar *keytype, *keyid, *uid;
245 gpgme_get_key(ctx, sig->fpr, &key, 0);
249 keytype = gpgme_pubkey_algo_name(
250 key->subkeys->pubkey_algo);
251 keyid = key->subkeys->keyid;
258 g_string_append_printf(siginfo,
259 _("Signature made using %s key ID %s\n"),
262 switch (gpg_err_code(sig->status)) {
263 case GPG_ERR_NO_ERROR:
264 case GPG_ERR_KEY_EXPIRED:
265 g_string_append_printf(siginfo,
266 _("Good signature from \"%s\" (Trust: %s)\n"),
267 uid, get_validity_str(sig->validity));
269 case GPG_ERR_SIG_EXPIRED:
270 g_string_append_printf(siginfo,
271 _("Expired signature from \"%s\"\n"),
274 case GPG_ERR_BAD_SIGNATURE:
275 g_string_append_printf(siginfo,
276 _("BAD signature from \"%s\"\n"),
282 if (sig->status != GPG_ERR_BAD_SIGNATURE) {
284 user = user ? user->next : NULL;
285 while (user != NULL) {
286 g_string_append_printf(siginfo,
292 g_string_append_printf(siginfo,
293 _("Primary key fingerprint: %s\n"),
294 sig ? sig->fpr: "?");
295 #ifdef HAVE_GPGME_PKA_TRUST
296 if (sig->pka_trust == 1 && sig->pka_address) {
297 g_string_append_printf(siginfo,
298 _("WARNING: Signer's address \"%s\" "
299 "does not match DNS entry\n"),
302 else if (sig->pka_trust == 2 && sig->pka_address) {
303 g_string_append_printf(siginfo,
304 _("Verified signer's address is \"%s\"\n"),
306 /* FIXME: Compare the address to the
309 #endif /*HAVE_GPGME_PKA_TRUST*/
312 g_string_append(siginfo, "\n");
318 g_string_free(siginfo, FALSE);
322 gpgme_data_t sgpgme_data_from_mimeinfo(MimeInfo *mimeinfo)
324 gpgme_data_t data = NULL;
326 FILE *fp = g_fopen(mimeinfo->data.filename, "rb");
327 gchar *tmp_file = NULL;
332 tmp_file = get_tmp_file();
333 copy_file_part(fp, mimeinfo->offset, mimeinfo->length, tmp_file);
336 debug_print("tmp file %s\n", tmp_file);
338 err = gpgme_data_new_from_file(&data, tmp_file, 1);
342 debug_print("data %p (%d %d)\n", (void *)&data, mimeinfo->offset, mimeinfo->length);
344 debug_print ("gpgme_data_new_from_file failed: %s\n",
345 gpgme_strerror (err));
346 privacy_set_error(_("Couldn't get data from message, %s"), gpgme_strerror(err));
352 gpgme_data_t sgpgme_decrypt_verify(gpgme_data_t cipher, gpgme_verify_result_t *status, gpgme_ctx_t ctx)
354 struct passphrase_cb_info_s info;
358 memset (&info, 0, sizeof info);
360 if ((err = gpgme_data_new(&plain)) != GPG_ERR_NO_ERROR) {
362 privacy_set_error(_("Couldn't initialize data, %s"), gpgme_strerror(err));
366 if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
367 if (!getenv("GPG_AGENT_INFO")) {
369 gpgme_set_passphrase_cb (ctx, gpgmegtk_passphrase_cb, &info);
373 gpgme_set_passphrase_cb (ctx, NULL, &info);
377 if (gpgme_get_protocol(ctx) == GPGME_PROTOCOL_OpenPGP) {
378 err = gpgme_op_decrypt_verify(ctx, cipher, plain);
379 if (err != GPG_ERR_NO_ERROR) {
380 debug_print("can't decrypt (%s)\n", gpgme_strerror(err));
381 privacy_set_error("%s", gpgme_strerror(err));
382 gpgmegtk_free_passphrase();
383 gpgme_data_release(plain);
387 err = gpgme_data_rewind(plain);
389 debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
392 debug_print("decrypted.\n");
393 *status = gpgme_op_verify_result (ctx);
395 err = gpgme_op_decrypt(ctx, cipher, plain);
396 if (err != GPG_ERR_NO_ERROR) {
397 debug_print("can't decrypt (%s)\n", gpgme_strerror(err));
398 gpgmegtk_free_passphrase();
399 gpgme_data_release(plain);
403 err = gpgme_data_rewind(plain);
405 debug_print("can't seek (%d %d %s)\n", err, errno, strerror(errno));
408 debug_print("decrypted.\n");
409 *status = gpgme_op_verify_result (ctx);
414 gchar *sgpgme_get_encrypt_data(GSList *recp_names, gpgme_protocol_t proto)
416 SelectionResult result = KEY_SELECTION_CANCEL;
417 gpgme_key_t *keys = gpgmegtk_recipient_selection(recp_names, &result,
423 if (result == KEY_SELECTION_DONT)
424 return g_strdup("_DONT_ENCRYPT_");
429 gpgme_subkey_t skey = keys[i]->subkeys;
430 gchar *fpr = skey->fpr;
432 debug_print("adding %s\n", fpr);
433 tmp = g_strconcat(ret?ret:"", fpr, " ", NULL);
441 gboolean sgpgme_setup_signers(gpgme_ctx_t ctx, PrefsAccount *account)
443 GPGAccountConfig *config;
445 gpgme_signers_clear(ctx);
447 config = prefs_gpg_account_get_config(account);
449 switch(config->sign_key) {
450 case SIGN_KEY_DEFAULT:
451 debug_print("using default gnupg key\n");
453 case SIGN_KEY_BY_FROM:
454 debug_print("using key for %s\n", account->address);
456 case SIGN_KEY_CUSTOM:
457 debug_print("using key for %s\n", config->sign_key_id);
461 if (config->sign_key != SIGN_KEY_DEFAULT) {
463 gpgme_key_t key, key2;
466 if (config->sign_key == SIGN_KEY_BY_FROM)
467 keyid = account->address;
468 else if (config->sign_key == SIGN_KEY_CUSTOM)
469 keyid = config->sign_key_id;
473 err = gpgme_op_keylist_start(ctx, keyid, 1);
475 err = gpgme_op_keylist_next(ctx, &key);
477 g_warning("setup_signers start: %s", gpgme_strerror(err));
478 privacy_set_error(_("Private key not found (%s)"), gpgme_strerror(err));
482 err = gpgme_op_keylist_next(ctx, &key2);
484 g_warning("ambiguous specification of private key '%s'\n",
486 privacy_set_error(_("Private key specification is ambiguous"));
490 gpgme_op_keylist_end(ctx);
491 err = gpgme_signers_add(ctx, key);
492 gpgme_key_release(key);
495 g_warning("error adding secret key: %s\n", gpgme_strerror(err));
496 privacy_set_error(_("Error setting private key: %s"), gpgme_strerror(err));
501 prefs_gpg_account_free_config(config);
505 prefs_gpg_account_free_config(config);
511 gpgme_engine_info_t engineInfo;
512 if (gpgme_check_version("1.0.0")) {
514 gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL));
517 gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL));
519 if (!gpgme_get_engine_info(&engineInfo)) {
521 debug_print("GpgME Protocol: %s\n"
522 "Version: %s (req %s)\n"
524 gpgme_get_protocol_name(engineInfo->protocol),
525 engineInfo->version ? engineInfo->version:"???",
526 engineInfo->req_version ? engineInfo->req_version:"???",
527 engineInfo->file_name ? engineInfo->file_name:"???");
528 if (engineInfo->protocol == GPGME_PROTOCOL_OpenPGP
529 && gpgme_engine_check_version(engineInfo->protocol) !=
531 if (engineInfo->file_name && !engineInfo->version) {
532 alertpanel_error(_("Gpgme protocol '%s' is unusable: "
533 "Engine '%s' isn't installed properly."),
534 gpgme_get_protocol_name(engineInfo->protocol),
535 engineInfo->file_name);
536 } else if (engineInfo->file_name && engineInfo->version
537 && engineInfo->req_version) {
538 alertpanel_error(_("Gpgme protocol '%s' is unusable: "
539 "Engine '%s' version %s is installed, "
540 "but version %s is required.\n"),
541 gpgme_get_protocol_name(engineInfo->protocol),
542 engineInfo->file_name,
544 engineInfo->req_version);
546 alertpanel_error(_("Gpgme protocol '%s' is unusable "
547 "(unknown problem)"),
548 gpgme_get_protocol_name(engineInfo->protocol));
551 engineInfo = engineInfo->next;
555 sgpgme_disable_all();
557 if (prefs_gpg_get_config()->gpg_warning) {
560 val = alertpanel_full
562 _("GnuPG is not installed properly, or needs "
564 "OpenPGP support disabled."),
565 GTK_STOCK_CLOSE, NULL, NULL, TRUE, NULL,
566 ALERT_WARNING, G_ALERTDEFAULT);
567 if (val & G_ALERTDISABLE)
568 prefs_gpg_get_config()->gpg_warning = FALSE;
575 gpgmegtk_free_passphrase();
578 #endif /* USE_GPGME */