src/plugins/pgpcore/prefs_gpg.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2004-2007 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 3 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, see <http://www.gnu.org/licenses/>.
  17  *
  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         {"skip_encryption_warning", "", &prefs_gpg.skip_encryption_warning, P_STRING,
  53          NULL, NULL, NULL},
  54
  55         {NULL, NULL, NULL, P_OTHER, NULL, NULL, NULL}
  56 };
  57
  58 static gchar *saved_gpg_agent_info = NULL;
  59
  60 struct GPGPage
  61 {
  62         PrefsPage page;
  63
  64         GtkWidget *checkbtn_auto_check_signatures;
  65         GtkWidget *checkbtn_use_gpg_agent;
  66         GtkWidget *checkbtn_store_passphrase;
  67         GtkWidget *spinbtn_store_passphrase;
  68         GtkWidget *checkbtn_passphrase_grab;
  69         GtkWidget *checkbtn_gpg_warning;
  70 };
  71
  72 static void prefs_gpg_create_widget_func(PrefsPage *_page,
  73                                          GtkWindow *window,
  74                                          gpointer data)
  75 {
  76         struct GPGPage *page = (struct GPGPage *) _page;
  77         struct GPGConfig *config;
  78
  79         GtkWidget *checkbtn_use_gpg_agent;
  80         GtkWidget *checkbtn_passphrase_grab;
  81         GtkWidget *checkbtn_store_passphrase;
  82         GtkWidget *checkbtn_auto_check_signatures;
  83         GtkWidget *checkbtn_gpg_warning;
  84         GtkWidget *hbox1;
  85         GtkWidget *vbox1, *vbox2;
  86         GtkWidget *label_expire1;
  87         GtkObject *spinbtn_store_passphrase_adj;
  88         GtkWidget *spinbtn_store_passphrase;
  89         GtkWidget *label_expire2;
  90         GtkWidget *frame_passphrase;
  91         GtkTooltips *tooltips;
  92
  93         tooltips = gtk_tooltips_new();
  94
  95         vbox1 = gtk_vbox_new (FALSE, VSPACING);
  96         gtk_widget_show (vbox1);
  97         gtk_container_set_border_width (GTK_CONTAINER (vbox1), VBOX_BORDER);
  98
  99         vbox2 = gtk_vbox_new (FALSE, 0);
 100         gtk_widget_show (vbox2);
 101         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 102
 103         PACK_CHECK_BUTTON (vbox2, checkbtn_auto_check_signatures,
 104                         _("Automatically check signatures"));
 105
 106         vbox2 = gtkut_get_options_frame(vbox1, &frame_passphrase, _("Passphrase"));
 107
 108         PACK_CHECK_BUTTON (vbox2, checkbtn_use_gpg_agent,
 109                         _("Use gpg-agent to manage passwords"));
 110         if (saved_gpg_agent_info == NULL)
 111                 gtk_widget_set_sensitive(checkbtn_use_gpg_agent, FALSE);
 112
 113         PACK_CHECK_BUTTON (vbox2, checkbtn_store_passphrase,
 114                         _("Store passphrase in memory"));
 115
 116         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, checkbtn_store_passphrase);
 117
 118         hbox1 = gtk_hbox_new (FALSE, 8);
 119         gtk_widget_show (hbox1);
 120         gtk_box_pack_start (GTK_BOX (vbox2), hbox1, FALSE, FALSE, 0);
 121
 122         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, hbox1);
 123
 124         label_expire1 = gtk_label_new(_("Expire after"));
 125         gtk_widget_show (label_expire1);
 126         gtk_box_pack_start (GTK_BOX (hbox1), label_expire1, FALSE, FALSE, 0);
 127
 128         spinbtn_store_passphrase_adj =
 129             gtk_adjustment_new(1, 0, 1440, 1, 10, 10);
 130         spinbtn_store_passphrase =
 131             gtk_spin_button_new(GTK_ADJUSTMENT
 132                                 (spinbtn_store_passphrase_adj), 1, 0);
 133         gtk_widget_show(spinbtn_store_passphrase);
 134         gtk_box_pack_start(GTK_BOX(hbox1), spinbtn_store_passphrase, FALSE,
 135                            FALSE, 0);
 136         gtk_widget_set_size_request(spinbtn_store_passphrase, 64, -1);
 137         gtk_tooltips_set_tip(tooltips, spinbtn_store_passphrase,
 138                              _
 139                              ("Setting to '0' will store the passphrase for the whole session"),
 140                              NULL);
 141         gtk_spin_button_set_numeric(GTK_SPIN_BUTTON
 142                                     (spinbtn_store_passphrase), TRUE);
 143
 144         label_expire2 = gtk_label_new(_("minute(s)"));
 145         gtk_widget_show(label_expire2);
 146         gtk_box_pack_start(GTK_BOX(hbox1), label_expire2, FALSE, FALSE, 0);
 147         gtk_misc_set_alignment(GTK_MISC(label_expire2), 0.0, 0.5);
 148
 149         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire1);
 150         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, spinbtn_store_passphrase);
 151         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire2);
 152
 153         PACK_CHECK_BUTTON (vbox2, checkbtn_passphrase_grab,
 154                         _("Grab input while entering a passphrase"));
 155
 156         vbox2 = gtk_vbox_new (FALSE, 0);
 157         gtk_widget_show (vbox2);
 158         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 159
 160         PACK_CHECK_BUTTON (vbox2, checkbtn_gpg_warning,
 161                         _("Display warning on start-up if GnuPG doesn't work"));
 162
 163         config = prefs_gpg_get_config();
 164
 165         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_auto_check_signatures), config->auto_check_signatures);
 166         if (!getenv("GPG_AGENT_INFO"))
 167                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), FALSE);
 168         else
 169                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), config->use_gpg_agent);
 170         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent)))
 171                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_store_passphrase), config->store_passphrase);
 172         gtk_spin_button_set_value(GTK_SPIN_BUTTON(spinbtn_store_passphrase), (float) config->store_passphrase_timeout);
 173         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_passphrase_grab), config->passphrase_grab);
 174         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_gpg_warning), config->gpg_warning);
 175
 176         page->checkbtn_auto_check_signatures = checkbtn_auto_check_signatures;
 177         page->checkbtn_store_passphrase = checkbtn_store_passphrase;
 178         page->spinbtn_store_passphrase = spinbtn_store_passphrase;
 179         page->checkbtn_passphrase_grab = checkbtn_passphrase_grab;
 180         page->checkbtn_gpg_warning = checkbtn_gpg_warning;
 181         page->checkbtn_use_gpg_agent = checkbtn_use_gpg_agent;
 182         page->page.widget = vbox1;
 183 }
 184
 185 static void prefs_gpg_destroy_widget_func(PrefsPage *_page)
 186 {
 187 }
 188
 189 static void prefs_gpg_save_func(PrefsPage *_page)
 190 {
 191         struct GPGPage *page = (struct GPGPage *) _page;
 192         GPGConfig *config = prefs_gpg_get_config();
 193
 194         config->auto_check_signatures =
 195                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_auto_check_signatures));
 196         config->use_gpg_agent =
 197                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_use_gpg_agent));
 198         config->store_passphrase =
 199                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_store_passphrase));
 200         config->store_passphrase_timeout =
 201                 gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(page->spinbtn_store_passphrase));
 202         config->passphrase_grab =
 203                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_passphrase_grab));
 204         config->gpg_warning =
 205                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_gpg_warning));
 206
 207         prefs_gpg_enable_agent(config->use_gpg_agent);
 208
 209         prefs_gpg_save_config();
 210 }
 211
 212 struct GPGAccountPage
 213 {
 214         PrefsPage page;
 215
 216         GtkWidget *key_default;
 217         GtkWidget *key_by_from;
 218         GtkWidget *key_custom;
 219         GtkWidget *keyid;
 220         GtkWidget *keyid_label;
 221         GtkWidget *new_key_label;
 222         GtkWidget *new_key_btn;
 223         GtkWidget *new_key_box;
 224
 225         PrefsAccount *account;
 226 };
 227
 228 void key_custom_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 229 {
 230         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 231         gboolean active;
 232
 233         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 234         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid_label), active);
 235         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid), active);
 236         if (!active)
 237                 gtk_editable_delete_text(GTK_EDITABLE(page->keyid), 0, -1);
 238 }
 239
 240 static void prefs_gpg_update_sens(struct GPGAccountPage *page)
 241 {
 242         gboolean active;
 243         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 244         if (sgpgme_has_secret_key()) {
 245                 gtk_widget_hide(page->new_key_box);
 246                 gtk_widget_set_sensitive(page->key_default, TRUE);
 247                 gtk_widget_set_sensitive(page->key_by_from, TRUE);
 248                 gtk_widget_set_sensitive(page->key_custom, TRUE);
 249                 gtk_widget_set_sensitive(page->keyid, active);
 250                 gtk_widget_set_sensitive(page->keyid_label, active);
 251         } else {
 252                 gtk_widget_show(page->new_key_box);
 253                 gtk_widget_set_sensitive(page->key_default, FALSE);
 254                 gtk_widget_set_sensitive(page->key_by_from, FALSE);
 255                 gtk_widget_set_sensitive(page->key_custom, FALSE);
 256                 gtk_widget_set_sensitive(page->keyid, FALSE);
 257                 gtk_widget_set_sensitive(page->keyid_label, FALSE);
 258         }
 259 }
 260
 261 static void new_key_clicked(GtkWidget *widget, gpointer user_data)
 262 {
 263         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 264         sgpgme_create_secret_key(page->account, FALSE);
 265         prefs_gpg_update_sens(page);
 266 }
 267
 268 static void prefs_gpg_account_create_widget_func(PrefsPage *_page,
 269                                                  GtkWindow *window,
 270                                                  gpointer data)
 271 {
 272         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 273         PrefsAccount *account = (PrefsAccount *) data;
 274         GPGAccountConfig *config;
 275
 276         GtkWidget *vbox;
 277         GtkWidget *frame1;
 278         GtkWidget *vbox2;
 279         GtkWidget *hbox;
 280         GSList *key_group = NULL;
 281         GtkWidget *key_default;
 282         GtkWidget *key_by_from;
 283         GtkWidget *key_custom;
 284         GtkWidget *keyid_label;
 285         GtkWidget *keyid;
 286         GtkWidget *image;
 287         GtkWidget *new_key_label;
 288         GtkWidget *new_key_btn;
 289         GtkWidget *new_key_box;
 290
 291         vbox = gtk_vbox_new(FALSE, VSPACING);
 292         gtk_container_set_border_width (GTK_CONTAINER (vbox), VBOX_BORDER);
 293         gtk_widget_show(vbox);
 294
 295         vbox2 = gtkut_get_options_frame(vbox, &frame1, _("Sign key"));
 296
 297         hbox = gtk_hbox_new (FALSE, 5);
 298         gtk_widget_show (hbox);
 299         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 300         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 301
 302         key_default = gtk_radio_button_new_with_label(key_group,
 303                         _("Use default GnuPG key"));
 304         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_default));
 305         gtk_widget_show(key_default);
 306         gtk_box_pack_start(GTK_BOX(hbox), key_default, FALSE, FALSE, 0);
 307
 308         hbox = gtk_hbox_new (FALSE, 5);
 309         gtk_widget_show (hbox);
 310         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 311         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 312
 313         key_by_from = gtk_radio_button_new_with_label(key_group,
 314                 _("Select key by your email address"));
 315         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_by_from));
 316         gtk_widget_show(key_by_from);
 317         gtk_box_pack_start(GTK_BOX(hbox), key_by_from, FALSE, FALSE, 0);
 318
 319         hbox = gtk_hbox_new (FALSE, 5);
 320         gtk_widget_show (hbox);
 321         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 322         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 323
 324         key_custom = gtk_radio_button_new_with_label(key_group,
 325                 _("Specify key manually"));
 326         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_custom));
 327         gtk_widget_show(key_custom);
 328         gtk_box_pack_start(GTK_BOX(hbox), key_custom, FALSE, FALSE, 0);
 329
 330         hbox = gtk_hbox_new (FALSE, 5);
 331         gtk_widget_show (hbox);
 332         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 333         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 334
 335         keyid_label = gtk_label_new(_("User or key ID:"));
 336         gtk_widget_show(keyid_label);
 337         gtk_label_set_justify(GTK_LABEL(keyid_label), GTK_JUSTIFY_LEFT);
 338         gtk_box_pack_start(GTK_BOX(hbox), keyid_label, FALSE, FALSE, 0);
 339
 340         keyid = gtk_entry_new();
 341         gtk_widget_show(keyid);
 342         gtk_box_pack_start(GTK_BOX(hbox), keyid, FALSE, FALSE, 0);
 343
 344         config = prefs_gpg_account_get_config(account);
 345         switch (config->sign_key) {
 346         case SIGN_KEY_DEFAULT:
 347                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_default), TRUE);
 348                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 349                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 350                 break;
 351         case SIGN_KEY_BY_FROM:
 352                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_by_from), TRUE);
 353                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 354                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 355                 break;
 356         case SIGN_KEY_CUSTOM:
 357                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_custom), TRUE);
 358                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), TRUE);
 359                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), TRUE);
 360                 break;
 361         }
 362
 363         hbox = gtk_hbox_new (FALSE, 5);
 364         gtk_widget_show (hbox);
 365         gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
 366
 367         new_key_box = gtk_hbox_new(FALSE, 6);
 368         gtk_widget_show(new_key_box);
 369         gtk_box_pack_start(GTK_BOX(hbox), new_key_box, FALSE, FALSE, 0);
 370
 371         image = gtk_image_new_from_stock(GTK_STOCK_DIALOG_WARNING,
 372                         GTK_ICON_SIZE_SMALL_TOOLBAR);
 373
 374         gtk_box_pack_start(GTK_BOX(new_key_box), image, FALSE, FALSE, 0);
 375         new_key_label = gtk_label_new(
 376                         _("No secret key found."));
 377         gtk_box_pack_start(GTK_BOX(new_key_box), new_key_label, FALSE, FALSE, 0);
 378
 379         new_key_btn = gtk_button_new_with_label(_("Generate a new key pair"));
 380         gtk_widget_show(new_key_btn);
 381         gtk_box_pack_start(GTK_BOX(hbox), new_key_btn, FALSE, FALSE, 0);
 382
 383         if (config->sign_key_id != NULL)
 384                 gtk_entry_set_text(GTK_ENTRY(keyid), config->sign_key_id);
 385
 386         g_signal_connect(G_OBJECT(key_custom), "toggled", G_CALLBACK(key_custom_toggled), page);
 387         g_signal_connect(G_OBJECT(new_key_btn), "clicked", G_CALLBACK(new_key_clicked), page);
 388
 389         page->key_default = key_default;
 390         page->key_by_from = key_by_from;
 391         page->key_custom = key_custom;
 392         page->keyid = keyid;
 393         page->keyid_label = keyid_label;
 394         page->new_key_box = new_key_box;
 395
 396         page->page.widget = vbox;
 397         page->account = account;
 398         prefs_gpg_update_sens(page);
 399 }
 400
 401 static void prefs_gpg_account_destroy_widget_func(PrefsPage *_page)
 402 {
 403         /* nothing to do here */
 404 }
 405
 406 static void prefs_gpg_account_save_func(PrefsPage *_page)
 407 {
 408         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 409         GPGAccountConfig *config;
 410
 411         config = prefs_gpg_account_get_config(page->account);
 412
 413         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_default)))
 414                 config->sign_key = SIGN_KEY_DEFAULT;
 415         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_by_from)))
 416                 config->sign_key = SIGN_KEY_BY_FROM;
 417         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom))) {
 418                 config->sign_key = SIGN_KEY_CUSTOM;
 419                 g_free(config->sign_key_id);
 420                 config->sign_key_id = gtk_editable_get_chars(GTK_EDITABLE(page->keyid), 0, -1);
 421         }
 422
 423         prefs_gpg_account_set_config(page->account, config);
 424         prefs_gpg_account_free_config(config);
 425 }
 426
 427 GPGConfig *prefs_gpg_get_config(void)
 428 {
 429         return &prefs_gpg;
 430 }
 431
 432 void prefs_gpg_save_config(void)
 433 {
 434         PrefFile *pfile;
 435         gchar *rcpath;
 436
 437         debug_print("Saving GPG config\n");
 438
 439         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 440         pfile = prefs_write_open(rcpath);
 441         g_free(rcpath);
 442         if (!pfile || (prefs_set_block_label(pfile, "GPG") < 0))
 443                 return;
 444
 445         if (prefs_write_param(param, pfile->fp) < 0) {
 446                 g_warning("failed to write GPG configuration to file\n");
 447                 prefs_file_close_revert(pfile);
 448                 return;
 449         }
 450         fprintf(pfile->fp, "\n");
 451
 452         prefs_file_close(pfile);
 453 }
 454
 455 struct GPGAccountConfig *prefs_gpg_account_get_config(PrefsAccount *account)
 456 {
 457         GPGAccountConfig *config;
 458         const gchar *confstr;
 459         gchar **strv;
 460
 461         config = g_new0(GPGAccountConfig, 1);
 462         config->sign_key = SIGN_KEY_DEFAULT;
 463         config->sign_key_id = NULL;
 464
 465         confstr = prefs_account_get_privacy_prefs(account, "gpg");
 466         if (confstr == NULL)
 467                 return config;
 468
 469         strv = g_strsplit(confstr, ";", 0);
 470         if (strv[0] != NULL) {
 471                 if (!strcmp(strv[0], "DEFAULT"))
 472                         config->sign_key = SIGN_KEY_DEFAULT;
 473                 if (!strcmp(strv[0], "BY_FROM"))
 474                         config->sign_key = SIGN_KEY_BY_FROM;
 475                 if (!strcmp(strv[0], "CUSTOM")) {
 476                         if (strv[1] != NULL) {
 477                                 config->sign_key = SIGN_KEY_CUSTOM;
 478                                 config->sign_key_id = g_strdup(strv[1]);
 479                         } else
 480                                 config->sign_key = SIGN_KEY_DEFAULT;
 481                 }
 482         }
 483         g_strfreev(strv);
 484
 485         return config;
 486 }
 487
 488 void prefs_gpg_account_set_config(PrefsAccount *account, GPGAccountConfig *config)
 489 {
 490         gchar *confstr = NULL;
 491
 492         switch (config->sign_key) {
 493         case SIGN_KEY_DEFAULT:
 494                 confstr = g_strdup("DEFAULT");
 495                 break;
 496         case SIGN_KEY_BY_FROM:
 497                 confstr = g_strdup("BY_FROM");
 498                 break;
 499         case SIGN_KEY_CUSTOM:
 500                 confstr = g_strdup_printf("CUSTOM;%s", config->sign_key_id);
 501                 break;
 502         default:
 503                 confstr = g_strdup("");
 504                 g_warning("prefs_gpg_account_set_config: bad sign_key val\n");
 505         }
 506
 507         prefs_account_set_privacy_prefs(account, "gpg", confstr);
 508
 509         g_free(confstr);
 510 }
 511
 512 void prefs_gpg_account_free_config(GPGAccountConfig *config)
 513 {
 514         g_free(config->sign_key_id);
 515         g_free(config);
 516 }
 517
 518 static struct GPGPage gpg_page;
 519 static struct GPGAccountPage gpg_account_page;
 520
 521 void prefs_gpg_enable_agent(gboolean enable)
 522 {
 523         if (enable) {
 524                 if (saved_gpg_agent_info) {
 525                         g_setenv("GPG_AGENT_INFO",
 526                                  saved_gpg_agent_info, TRUE);
 527                         debug_print("set GPG_AGENT_INFO=%s\n",
 528                                 saved_gpg_agent_info);
 529                 } else {
 530                         debug_print("Can't enable gpg agent (no GPG_AGENT_INFO)\n");
 531                 }
 532         } else {
 533                 if (saved_gpg_agent_info) {
 534                         g_unsetenv("GPG_AGENT_INFO");
 535                         debug_print("unset GPG_AGENT_INFO=%s\n",
 536                                 saved_gpg_agent_info);
 537                 } else {
 538                         debug_print("Can't disable gpg agent (no GPG_AGENT_INFO)\n");
 539                 }
 540         }
 541 }
 542
 543 void prefs_gpg_init()
 544 {
 545         static gchar *path[3];
 546         gchar *rcpath;
 547         const gchar *tmp = NULL;
 548
 549         prefs_set_default(param);
 550         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 551         prefs_read_config(param, "GPG", rcpath, NULL);
 552         g_free(rcpath);
 553
 554         path[0] = _("Plugins");
 555         path[1] = _("GPG");
 556         path[2] = NULL;
 557
 558         gpg_page.page.path = path;
 559         gpg_page.page.create_widget = prefs_gpg_create_widget_func;
 560         gpg_page.page.destroy_widget = prefs_gpg_destroy_widget_func;
 561         gpg_page.page.save_page = prefs_gpg_save_func;
 562         gpg_page.page.weight = 30.0;
 563
 564         prefs_gtk_register_page((PrefsPage *) &gpg_page);
 565
 566         gpg_account_page.page.path = path;
 567         gpg_account_page.page.create_widget = prefs_gpg_account_create_widget_func;
 568         gpg_account_page.page.destroy_widget = prefs_gpg_account_destroy_widget_func;
 569         gpg_account_page.page.save_page = prefs_gpg_account_save_func;
 570         gpg_account_page.page.weight = 30.0;
 571
 572         prefs_account_register_page((PrefsPage *) &gpg_account_page);
 573
 574         tmp = g_getenv("GPG_AGENT_INFO");
 575         if (tmp)
 576                 saved_gpg_agent_info = g_strdup(tmp);
 577
 578         prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
 579 }
 580
 581 void prefs_gpg_done()
 582 {
 583         prefs_gtk_unregister_page((PrefsPage *) &gpg_page);
 584         prefs_account_unregister_page((PrefsPage *) &gpg_account_page);
 585         prefs_gpg_enable_agent(TRUE);
 586 }
 587
 588 gboolean prefs_gpg_should_skip_encryption_warning(const gchar *systemid)
 589 {
 590         gchar **systems = NULL;
 591         int i = 0;
 592         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 593                 return FALSE;
 594         systems = g_strsplit(prefs_gpg_get_config()->skip_encryption_warning,
 595                                 ",", -1);
 596         while (systems && systems[i]) {
 597                 g_print(" cmp %s %s\n", systems[i], systemid);
 598                 if (!strcmp(systems[i],systemid)) {
 599                         g_strfreev(systems);
 600                         return TRUE;
 601                 }
 602                 i++;
 603         }
 604         g_strfreev(systems);
 605         return FALSE;
 606 }
 607
 608 void prefs_gpg_add_skip_encryption_warning(const gchar *systemid)
 609 {
 610         gchar *tmp = NULL;
 611         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 612                 prefs_gpg_get_config()->skip_encryption_warning =
 613                         g_strdup_printf("%s,", systemid);
 614         else if (!prefs_gpg_should_skip_encryption_warning(systemid)) {
 615                 tmp = g_strdup_printf("%s%s,",
 616                         prefs_gpg_get_config()->skip_encryption_warning,
 617                         systemid);
 618                 g_free(prefs_gpg_get_config()->skip_encryption_warning);
 619                 prefs_gpg_get_config()->skip_encryption_warning = tmp;
 620         }
 621         prefs_gpg_save_config();
 622 }
 623
 624 void prefs_gpg_remove_skip_encryption_warning(const gchar *systemid)
 625 {
 626         gchar **systems = NULL;
 627         int i = 0;
 628         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 629                 return;
 630
 631         if (prefs_gpg_should_skip_encryption_warning(systemid)) {
 632                 systems = g_strsplit(prefs_gpg_get_config()->skip_encryption_warning,
 633                                 ",", -1);
 634                 g_free(prefs_gpg_get_config()->skip_encryption_warning);
 635                 prefs_gpg_get_config()->skip_encryption_warning = NULL;
 636
 637                 while (systems && systems[i]) {
 638                         if (!strcmp(systems[i],systemid)) {
 639                                 i++;
 640                                 continue;
 641                         }
 642                         prefs_gpg_add_skip_encryption_warning(systems[i]);
 643                         i++;
 644                 }
 645
 646                 g_strfreev(systems);
 647         }
 648         prefs_gpg_save_config();
 649 }