src/plugins/pgpcore/prefs_gpg.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2004-2007 Hiroyuki Yamamoto & the Claws Mail 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 #include <gtk/gtk.h>
  21 #include <glib.h>
  22 #include <glib/gi18n.h>
  23
  24 #include "defs.h"
  25 #include "utils.h"
  26 #include "gtk/gtkutils.h"
  27 #include "prefs.h"
  28 #include "prefs_gtk.h"
  29 #include "prefs_gpg.h"
  30 #include "sgpgme.h"
  31
  32 struct GPGConfig prefs_gpg;
  33
  34 static PrefParam param[] = {
  35         /* Privacy */
  36         {"auto_check_signatures", "FALSE",
  37          &prefs_gpg.auto_check_signatures, P_BOOL,
  38          NULL, NULL, NULL},
  39         {"use_gpg_agent", "TRUE", &prefs_gpg.use_gpg_agent, P_BOOL,
  40          NULL, NULL, NULL},
  41         {"store_passphrase", "FALSE", &prefs_gpg.store_passphrase, P_BOOL,
  42          NULL, NULL, NULL},
  43         {"store_passphrase_timeout", "0",
  44          &prefs_gpg.store_passphrase_timeout, P_INT,
  45          NULL, NULL, NULL},
  46         {"passphrase_grab", "FALSE", &prefs_gpg.passphrase_grab, P_BOOL,
  47          NULL, NULL, NULL},
  48         {"gpg_warning", "TRUE", &prefs_gpg.gpg_warning, P_BOOL,
  49          NULL, NULL, NULL},
  50         {"gpg_ask_create_key", "TRUE", &prefs_gpg.gpg_ask_create_key, P_BOOL,
  51          NULL, NULL, NULL},
  52
  53         {NULL, NULL, NULL, P_OTHER, NULL, NULL, NULL}
  54 };
  55
  56 static gchar *saved_gpg_agent_info = NULL;
  57
  58 struct GPGPage
  59 {
  60         PrefsPage page;
  61
  62         GtkWidget *checkbtn_auto_check_signatures;
  63         GtkWidget *checkbtn_use_gpg_agent;
  64         GtkWidget *checkbtn_store_passphrase;
  65         GtkWidget *spinbtn_store_passphrase;
  66         GtkWidget *checkbtn_passphrase_grab;
  67         GtkWidget *checkbtn_gpg_warning;
  68 };
  69
  70 static void prefs_gpg_create_widget_func(PrefsPage *_page,
  71                                          GtkWindow *window,
  72                                          gpointer data)
  73 {
  74         struct GPGPage *page = (struct GPGPage *) _page;
  75         struct GPGConfig *config;
  76
  77         GtkWidget *checkbtn_use_gpg_agent;
  78         GtkWidget *checkbtn_passphrase_grab;
  79         GtkWidget *checkbtn_store_passphrase;
  80         GtkWidget *checkbtn_auto_check_signatures;
  81         GtkWidget *checkbtn_gpg_warning;
  82         GtkWidget *hbox1;
  83         GtkWidget *vbox1, *vbox2;
  84         GtkWidget *label_expire1;
  85         GtkObject *spinbtn_store_passphrase_adj;
  86         GtkWidget *spinbtn_store_passphrase;
  87         GtkWidget *label_expire2;
  88         GtkWidget *frame_passphrase;
  89         GtkTooltips *tooltips;
  90
  91         tooltips = gtk_tooltips_new();
  92
  93         vbox1 = gtk_vbox_new (FALSE, VSPACING);
  94         gtk_widget_show (vbox1);
  95         gtk_container_set_border_width (GTK_CONTAINER (vbox1), VBOX_BORDER);
  96
  97         vbox2 = gtk_vbox_new (FALSE, 0);
  98         gtk_widget_show (vbox2);
  99         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 100
 101         PACK_CHECK_BUTTON (vbox2, checkbtn_auto_check_signatures,
 102                         _("Automatically check signatures"));
 103
 104         vbox2 = gtkut_get_options_frame(vbox1, &frame_passphrase, _("Passphrase"));
 105
 106         PACK_CHECK_BUTTON (vbox2, checkbtn_use_gpg_agent,
 107                         _("Use gpg-agent to manage passwords"));
 108         if (saved_gpg_agent_info == NULL)
 109                 gtk_widget_set_sensitive(checkbtn_use_gpg_agent, FALSE);
 110
 111         PACK_CHECK_BUTTON (vbox2, checkbtn_store_passphrase,
 112                         _("Store passphrase in memory"));
 113
 114         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, checkbtn_store_passphrase);
 115
 116         hbox1 = gtk_hbox_new (FALSE, 8);
 117         gtk_widget_show (hbox1);
 118         gtk_box_pack_start (GTK_BOX (vbox2), hbox1, FALSE, FALSE, 0);
 119
 120         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, hbox1);
 121
 122         label_expire1 = gtk_label_new(_("Expire after"));
 123         gtk_widget_show (label_expire1);
 124         gtk_box_pack_start (GTK_BOX (hbox1), label_expire1, FALSE, FALSE, 0);
 125
 126         spinbtn_store_passphrase_adj =
 127             gtk_adjustment_new(1, 0, 1440, 1, 10, 10);
 128         spinbtn_store_passphrase =
 129             gtk_spin_button_new(GTK_ADJUSTMENT
 130                                 (spinbtn_store_passphrase_adj), 1, 0);
 131         gtk_widget_show(spinbtn_store_passphrase);
 132         gtk_box_pack_start(GTK_BOX(hbox1), spinbtn_store_passphrase, FALSE,
 133                            FALSE, 0);
 134         gtk_widget_set_size_request(spinbtn_store_passphrase, 64, -1);
 135         gtk_tooltips_set_tip(tooltips, spinbtn_store_passphrase,
 136                              _
 137                              ("Setting to '0' will store the passphrase for the whole session"),
 138                              NULL);
 139         gtk_spin_button_set_numeric(GTK_SPIN_BUTTON
 140                                     (spinbtn_store_passphrase), TRUE);
 141
 142         label_expire2 = gtk_label_new(_("minute(s)"));
 143         gtk_widget_show(label_expire2);
 144         gtk_box_pack_start(GTK_BOX(hbox1), label_expire2, FALSE, FALSE, 0);
 145         gtk_misc_set_alignment(GTK_MISC(label_expire2), 0.0, 0.5);
 146
 147         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire1);
 148         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, spinbtn_store_passphrase);
 149         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire2);
 150
 151         PACK_CHECK_BUTTON (vbox2, checkbtn_passphrase_grab,
 152                         _("Grab input while entering a passphrase"));
 153
 154         vbox2 = gtk_vbox_new (FALSE, 0);
 155         gtk_widget_show (vbox2);
 156         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 157
 158         PACK_CHECK_BUTTON (vbox2, checkbtn_gpg_warning,
 159                         _("Display warning on start-up if GnuPG doesn't work"));
 160
 161         config = prefs_gpg_get_config();
 162
 163         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_auto_check_signatures), config->auto_check_signatures);
 164         if (!getenv("GPG_AGENT_INFO"))
 165                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), FALSE);
 166         else
 167                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), config->use_gpg_agent);
 168         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent)))
 169                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_store_passphrase), config->store_passphrase);
 170         gtk_spin_button_set_value(GTK_SPIN_BUTTON(spinbtn_store_passphrase), (float) config->store_passphrase_timeout);
 171         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_passphrase_grab), config->passphrase_grab);
 172         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_gpg_warning), config->gpg_warning);
 173
 174         page->checkbtn_auto_check_signatures = checkbtn_auto_check_signatures;
 175         page->checkbtn_store_passphrase = checkbtn_store_passphrase;
 176         page->spinbtn_store_passphrase = spinbtn_store_passphrase;
 177         page->checkbtn_passphrase_grab = checkbtn_passphrase_grab;
 178         page->checkbtn_gpg_warning = checkbtn_gpg_warning;
 179         page->checkbtn_use_gpg_agent = checkbtn_use_gpg_agent;
 180         page->page.widget = vbox1;
 181 }
 182
 183 static void prefs_gpg_destroy_widget_func(PrefsPage *_page)
 184 {
 185 }
 186
 187 static void prefs_gpg_save_func(PrefsPage *_page)
 188 {
 189         struct GPGPage *page = (struct GPGPage *) _page;
 190         GPGConfig *config = prefs_gpg_get_config();
 191
 192         config->auto_check_signatures =
 193                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_auto_check_signatures));
 194         config->use_gpg_agent =
 195                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_use_gpg_agent));
 196         config->store_passphrase =
 197                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_store_passphrase));
 198         config->store_passphrase_timeout =
 199                 gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(page->spinbtn_store_passphrase));
 200         config->passphrase_grab =
 201                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_passphrase_grab));
 202         config->gpg_warning =
 203                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_gpg_warning));
 204
 205         prefs_gpg_enable_agent(config->use_gpg_agent);
 206
 207         prefs_gpg_save_config();
 208 }
 209
 210 struct GPGAccountPage
 211 {
 212         PrefsPage page;
 213
 214         GtkWidget *key_default;
 215         GtkWidget *key_by_from;
 216         GtkWidget *key_custom;
 217         GtkWidget *keyid;
 218         GtkWidget *keyid_label;
 219         GtkWidget *new_key_label;
 220         GtkWidget *new_key_btn;
 221         GtkWidget *new_key_box;
 222
 223         PrefsAccount *account;
 224 };
 225
 226 void key_custom_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 227 {
 228         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 229         gboolean active;
 230
 231         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 232         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid_label), active);
 233         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid), active);
 234         if (!active)
 235                 gtk_editable_delete_text(GTK_EDITABLE(page->keyid), 0, -1);
 236 }
 237
 238 static void prefs_gpg_update_sens(struct GPGAccountPage *page)
 239 {
 240         gboolean active;
 241         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 242         if (sgpgme_has_secret_key()) {
 243                 gtk_widget_hide(page->new_key_box);
 244                 gtk_widget_set_sensitive(page->key_default, TRUE);
 245                 gtk_widget_set_sensitive(page->key_by_from, TRUE);
 246                 gtk_widget_set_sensitive(page->key_custom, TRUE);
 247                 gtk_widget_set_sensitive(page->keyid, active);
 248                 gtk_widget_set_sensitive(page->keyid_label, active);
 249         } else {
 250                 gtk_widget_show(page->new_key_box);
 251                 gtk_widget_set_sensitive(page->key_default, FALSE);
 252                 gtk_widget_set_sensitive(page->key_by_from, FALSE);
 253                 gtk_widget_set_sensitive(page->key_custom, FALSE);
 254                 gtk_widget_set_sensitive(page->keyid, FALSE);
 255                 gtk_widget_set_sensitive(page->keyid_label, FALSE);
 256         }
 257 }
 258
 259 static void new_key_clicked(GtkWidget *widget, gpointer user_data)
 260 {
 261         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 262         sgpgme_create_secret_key(page->account, FALSE);
 263         prefs_gpg_update_sens(page);
 264 }
 265
 266 static void prefs_gpg_account_create_widget_func(PrefsPage *_page,
 267                                                  GtkWindow *window,
 268                                                  gpointer data)
 269 {
 270         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 271         PrefsAccount *account = (PrefsAccount *) data;
 272         GPGAccountConfig *config;
 273
 274         GtkWidget *vbox;
 275         GtkWidget *frame1;
 276         GtkWidget *vbox2;
 277         GtkWidget *hbox;
 278         GSList *key_group = NULL;
 279         GtkWidget *key_default;
 280         GtkWidget *key_by_from;
 281         GtkWidget *key_custom;
 282         GtkWidget *keyid_label;
 283         GtkWidget *keyid;
 284         GtkWidget *image;
 285         GtkWidget *new_key_label;
 286         GtkWidget *new_key_btn;
 287         GtkWidget *new_key_box;
 288
 289         vbox = gtk_vbox_new(FALSE, VSPACING);
 290         gtk_container_set_border_width (GTK_CONTAINER (vbox), VBOX_BORDER);
 291         gtk_widget_show(vbox);
 292
 293         vbox2 = gtkut_get_options_frame(vbox, &frame1, _("Sign key"));
 294
 295         hbox = gtk_hbox_new (FALSE, 5);
 296         gtk_widget_show (hbox);
 297         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 298         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 299
 300         key_default = gtk_radio_button_new_with_label(key_group,
 301                         _("Use default GnuPG key"));
 302         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_default));
 303         gtk_widget_show(key_default);
 304         gtk_box_pack_start(GTK_BOX(hbox), key_default, FALSE, FALSE, 0);
 305
 306         hbox = gtk_hbox_new (FALSE, 5);
 307         gtk_widget_show (hbox);
 308         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 309         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 310
 311         key_by_from = gtk_radio_button_new_with_label(key_group,
 312                 _("Select key by your email address"));
 313         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_by_from));
 314         gtk_widget_show(key_by_from);
 315         gtk_box_pack_start(GTK_BOX(hbox), key_by_from, FALSE, FALSE, 0);
 316
 317         hbox = gtk_hbox_new (FALSE, 5);
 318         gtk_widget_show (hbox);
 319         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 320         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 321
 322         key_custom = gtk_radio_button_new_with_label(key_group,
 323                 _("Specify key manually"));
 324         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_custom));
 325         gtk_widget_show(key_custom);
 326         gtk_box_pack_start(GTK_BOX(hbox), key_custom, FALSE, FALSE, 0);
 327
 328         hbox = gtk_hbox_new (FALSE, 5);
 329         gtk_widget_show (hbox);
 330         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 331         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 332
 333         keyid_label = gtk_label_new(_("User or key ID:"));
 334         gtk_widget_show(keyid_label);
 335         gtk_label_set_justify(GTK_LABEL(keyid_label), GTK_JUSTIFY_LEFT);
 336         gtk_box_pack_start(GTK_BOX(hbox), keyid_label, FALSE, FALSE, 0);
 337
 338         keyid = gtk_entry_new();
 339         gtk_widget_show(keyid);
 340         gtk_box_pack_start(GTK_BOX(hbox), keyid, FALSE, FALSE, 0);
 341
 342         config = prefs_gpg_account_get_config(account);
 343         switch (config->sign_key) {
 344         case SIGN_KEY_DEFAULT:
 345                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_default), TRUE);
 346                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 347                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 348                 break;
 349         case SIGN_KEY_BY_FROM:
 350                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_by_from), TRUE);
 351                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 352                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 353                 break;
 354         case SIGN_KEY_CUSTOM:
 355                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_custom), TRUE);
 356                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), TRUE);
 357                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), TRUE);
 358                 break;
 359         }
 360
 361         hbox = gtk_hbox_new (FALSE, 5);
 362         gtk_widget_show (hbox);
 363         gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
 364
 365         new_key_box = gtk_hbox_new(FALSE, 6);
 366         gtk_widget_show(new_key_box);
 367         gtk_box_pack_start(GTK_BOX(hbox), new_key_box, FALSE, FALSE, 0);
 368
 369         image = gtk_image_new_from_stock(GTK_STOCK_DIALOG_WARNING,
 370                         GTK_ICON_SIZE_SMALL_TOOLBAR);
 371
 372         gtk_box_pack_start(GTK_BOX(new_key_box), image, FALSE, FALSE, 0);
 373         new_key_label = gtk_label_new(
 374                         _("No secret key found."));
 375         gtk_box_pack_start(GTK_BOX(new_key_box), new_key_label, FALSE, FALSE, 0);
 376
 377         new_key_btn = gtk_button_new_with_label(_("Generate a new key pair"));
 378         gtk_widget_show(new_key_btn);
 379         gtk_box_pack_start(GTK_BOX(hbox), new_key_btn, FALSE, FALSE, 0);
 380
 381         if (config->sign_key_id != NULL)
 382                 gtk_entry_set_text(GTK_ENTRY(keyid), config->sign_key_id);
 383
 384         g_signal_connect(G_OBJECT(key_custom), "toggled", G_CALLBACK(key_custom_toggled), page);
 385         g_signal_connect(G_OBJECT(new_key_btn), "clicked", G_CALLBACK(new_key_clicked), page);
 386
 387         page->key_default = key_default;
 388         page->key_by_from = key_by_from;
 389         page->key_custom = key_custom;
 390         page->keyid = keyid;
 391         page->keyid_label = keyid_label;
 392         page->new_key_box = new_key_box;
 393
 394         page->page.widget = vbox;
 395         page->account = account;
 396         prefs_gpg_update_sens(page);
 397 }
 398
 399 static void prefs_gpg_account_destroy_widget_func(PrefsPage *_page)
 400 {
 401         /* nothing to do here */
 402 }
 403
 404 static void prefs_gpg_account_save_func(PrefsPage *_page)
 405 {
 406         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 407         GPGAccountConfig *config;
 408
 409         config = prefs_gpg_account_get_config(page->account);
 410
 411         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_default)))
 412                 config->sign_key = SIGN_KEY_DEFAULT;
 413         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_by_from)))
 414                 config->sign_key = SIGN_KEY_BY_FROM;
 415         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom))) {
 416                 config->sign_key = SIGN_KEY_CUSTOM;
 417                 g_free(config->sign_key_id);
 418                 config->sign_key_id = gtk_editable_get_chars(GTK_EDITABLE(page->keyid), 0, -1);
 419         }
 420
 421         prefs_gpg_account_set_config(page->account, config);
 422         prefs_gpg_account_free_config(config);
 423 }
 424
 425 GPGConfig *prefs_gpg_get_config(void)
 426 {
 427         return &prefs_gpg;
 428 }
 429
 430 void prefs_gpg_save_config(void)
 431 {
 432         PrefFile *pfile;
 433         gchar *rcpath;
 434
 435         debug_print("Saving GPG config\n");
 436
 437         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 438         pfile = prefs_write_open(rcpath);
 439         g_free(rcpath);
 440         if (!pfile || (prefs_set_block_label(pfile, "GPG") < 0))
 441                 return;
 442
 443         if (prefs_write_param(param, pfile->fp) < 0) {
 444                 g_warning("failed to write GPG configuration to file\n");
 445                 prefs_file_close_revert(pfile);
 446                 return;
 447         }
 448         fprintf(pfile->fp, "\n");
 449
 450         prefs_file_close(pfile);
 451 }
 452
 453 struct GPGAccountConfig *prefs_gpg_account_get_config(PrefsAccount *account)
 454 {
 455         GPGAccountConfig *config;
 456         const gchar *confstr;
 457         gchar **strv;
 458
 459         config = g_new0(GPGAccountConfig, 1);
 460         config->sign_key = SIGN_KEY_DEFAULT;
 461         config->sign_key_id = NULL;
 462
 463         confstr = prefs_account_get_privacy_prefs(account, "gpg");
 464         if (confstr == NULL)
 465                 return config;
 466
 467         strv = g_strsplit(confstr, ";", 0);
 468         if (strv[0] != NULL) {
 469                 if (!strcmp(strv[0], "DEFAULT"))
 470                         config->sign_key = SIGN_KEY_DEFAULT;
 471                 if (!strcmp(strv[0], "BY_FROM"))
 472                         config->sign_key = SIGN_KEY_BY_FROM;
 473                 if (!strcmp(strv[0], "CUSTOM")) {
 474                         if (strv[1] != NULL) {
 475                                 config->sign_key = SIGN_KEY_CUSTOM;
 476                                 config->sign_key_id = g_strdup(strv[1]);
 477                         } else
 478                                 config->sign_key = SIGN_KEY_DEFAULT;
 479                 }
 480         }
 481         g_strfreev(strv);
 482
 483         return config;
 484 }
 485
 486 void prefs_gpg_account_set_config(PrefsAccount *account, GPGAccountConfig *config)
 487 {
 488         gchar *confstr = NULL;
 489
 490         switch (config->sign_key) {
 491         case SIGN_KEY_DEFAULT:
 492                 confstr = g_strdup("DEFAULT");
 493                 break;
 494         case SIGN_KEY_BY_FROM:
 495                 confstr = g_strdup("BY_FROM");
 496                 break;
 497         case SIGN_KEY_CUSTOM:
 498                 confstr = g_strdup_printf("CUSTOM;%s", config->sign_key_id);
 499                 break;
 500         default:
 501                 confstr = g_strdup("");
 502                 g_warning("prefs_gpg_account_set_config: bad sign_key val\n");
 503         }
 504
 505         prefs_account_set_privacy_prefs(account, "gpg", confstr);
 506
 507         g_free(confstr);
 508 }
 509
 510 void prefs_gpg_account_free_config(GPGAccountConfig *config)
 511 {
 512         g_free(config->sign_key_id);
 513         g_free(config);
 514 }
 515
 516 static struct GPGPage gpg_page;
 517 static struct GPGAccountPage gpg_account_page;
 518
 519 void prefs_gpg_enable_agent(gboolean enable)
 520 {
 521         if (enable) {
 522                 if (saved_gpg_agent_info) {
 523                         g_setenv("GPG_AGENT_INFO",
 524                                  saved_gpg_agent_info, TRUE);
 525                         debug_print("set GPG_AGENT_INFO=%s\n",
 526                                 saved_gpg_agent_info);
 527                 } else {
 528                         debug_print("Can't enable gpg agent (no GPG_AGENT_INFO)\n");
 529                 }
 530         } else {
 531                         g_unsetenv("GPG_AGENT_INFO");
 532                         debug_print("unset GPG_AGENT_INFO=%s\n",
 533                                 saved_gpg_agent_info);
 534         }
 535 }
 536
 537 void prefs_gpg_init()
 538 {
 539         static gchar *path[3];
 540         gchar *rcpath;
 541         gchar *tmp = NULL;
 542
 543         prefs_set_default(param);
 544         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 545         prefs_read_config(param, "GPG", rcpath, NULL);
 546         g_free(rcpath);
 547
 548         path[0] = _("Plugins");
 549         path[1] = _("GPG");
 550         path[2] = NULL;
 551
 552         gpg_page.page.path = path;
 553         gpg_page.page.create_widget = prefs_gpg_create_widget_func;
 554         gpg_page.page.destroy_widget = prefs_gpg_destroy_widget_func;
 555         gpg_page.page.save_page = prefs_gpg_save_func;
 556         gpg_page.page.weight = 30.0;
 557
 558         prefs_gtk_register_page((PrefsPage *) &gpg_page);
 559
 560         gpg_account_page.page.path = path;
 561         gpg_account_page.page.create_widget = prefs_gpg_account_create_widget_func;
 562         gpg_account_page.page.destroy_widget = prefs_gpg_account_destroy_widget_func;
 563         gpg_account_page.page.save_page = prefs_gpg_account_save_func;
 564         gpg_account_page.page.weight = 30.0;
 565
 566         prefs_account_register_page((PrefsPage *) &gpg_account_page);
 567
 568         tmp = g_getenv("GPG_AGENT_INFO");
 569         if (tmp)
 570                 saved_gpg_agent_info = g_strdup(tmp);
 571
 572         prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
 573 }
 574
 575 void prefs_gpg_done()
 576 {
 577         prefs_gtk_unregister_page((PrefsPage *) &gpg_page);
 578         prefs_account_unregister_page((PrefsPage *) &gpg_account_page);
 579         prefs_gpg_enable_agent(TRUE);
 580 }