src/plugins/pgpcore/prefs_gpg.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2004-2012 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 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include <gtk/gtk.h>
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28
  29 #include "defs.h"
  30 #include "gtk/gtkutils.h"
  31 #include "utils.h"
  32 #include "prefs.h"
  33 #include "prefs_gtk.h"
  34 #include "prefs_gpg.h"
  35 #include "sgpgme.h"
  36
  37 struct GPGConfig prefs_gpg;
  38
  39 static PrefParam param[] = {
  40         /* Privacy */
  41         {"auto_check_signatures", "FALSE",
  42          &prefs_gpg.auto_check_signatures, P_BOOL,
  43          NULL, NULL, NULL},
  44         {"use_gpg_agent", "TRUE", &prefs_gpg.use_gpg_agent, P_BOOL,
  45          NULL, NULL, NULL},
  46         {"store_passphrase", "FALSE", &prefs_gpg.store_passphrase, P_BOOL,
  47          NULL, NULL, NULL},
  48         {"store_passphrase_timeout", "0",
  49          &prefs_gpg.store_passphrase_timeout, P_INT,
  50          NULL, NULL, NULL},
  51         {"passphrase_grab", "FALSE", &prefs_gpg.passphrase_grab, P_BOOL,
  52          NULL, NULL, NULL},
  53         {"gpg_warning", "TRUE", &prefs_gpg.gpg_warning, P_BOOL,
  54          NULL, NULL, NULL},
  55         {"gpg_ask_create_key", "TRUE", &prefs_gpg.gpg_ask_create_key, P_BOOL,
  56          NULL, NULL, NULL},
  57         {"skip_encryption_warning", "", &prefs_gpg.skip_encryption_warning, P_STRING,
  58          NULL, NULL, NULL},
  59
  60         {NULL, NULL, NULL, P_OTHER, NULL, NULL, NULL}
  61 };
  62
  63 static gchar *saved_gpg_agent_info = NULL;
  64
  65 struct GPGPage
  66 {
  67         PrefsPage page;
  68
  69         GtkWidget *checkbtn_auto_check_signatures;
  70         GtkWidget *checkbtn_use_gpg_agent;
  71         GtkWidget *checkbtn_store_passphrase;
  72         GtkWidget *spinbtn_store_passphrase;
  73         GtkWidget *checkbtn_passphrase_grab;
  74         GtkWidget *checkbtn_gpg_warning;
  75 };
  76
  77 static void prefs_gpg_create_widget_func(PrefsPage *_page,
  78                                          GtkWindow *window,
  79                                          gpointer data)
  80 {
  81         struct GPGPage *page = (struct GPGPage *) _page;
  82         struct GPGConfig *config;
  83
  84         GtkWidget *checkbtn_use_gpg_agent;
  85         GtkWidget *checkbtn_passphrase_grab;
  86         GtkWidget *checkbtn_store_passphrase;
  87         GtkWidget *checkbtn_auto_check_signatures;
  88         GtkWidget *checkbtn_gpg_warning;
  89         GtkWidget *hbox1;
  90         GtkWidget *vbox1, *vbox2;
  91         GtkWidget *label_expire1;
  92         GtkAdjustment *spinbtn_store_passphrase_adj;
  93         GtkWidget *spinbtn_store_passphrase;
  94         GtkWidget *label_expire2;
  95         GtkWidget *frame_passphrase;
  96
  97         vbox1 = gtk_vbox_new (FALSE, VSPACING);
  98         gtk_widget_show (vbox1);
  99         gtk_container_set_border_width (GTK_CONTAINER (vbox1), VBOX_BORDER);
 100
 101         vbox2 = gtk_vbox_new (FALSE, 0);
 102         gtk_widget_show (vbox2);
 103         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 104
 105         PACK_CHECK_BUTTON (vbox2, checkbtn_auto_check_signatures,
 106                         _("Automatically check signatures"));
 107
 108         vbox2 = gtkut_get_options_frame(vbox1, &frame_passphrase, _("Passphrase"));
 109
 110         PACK_CHECK_BUTTON (vbox2, checkbtn_use_gpg_agent,
 111                         _("Use gpg-agent to manage passwords"));
 112         if (saved_gpg_agent_info == NULL)
 113                 gtk_widget_set_sensitive(checkbtn_use_gpg_agent, FALSE);
 114
 115         PACK_CHECK_BUTTON (vbox2, checkbtn_store_passphrase,
 116                         _("Store passphrase in memory"));
 117
 118         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, checkbtn_store_passphrase);
 119
 120         hbox1 = gtk_hbox_new (FALSE, 8);
 121         gtk_widget_show (hbox1);
 122         gtk_box_pack_start (GTK_BOX (vbox2), hbox1, FALSE, FALSE, 0);
 123
 124         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, hbox1);
 125
 126         label_expire1 = gtk_label_new(_("Expire after"));
 127         gtk_widget_show (label_expire1);
 128         gtk_box_pack_start (GTK_BOX (hbox1), label_expire1, FALSE, FALSE, 0);
 129
 130         spinbtn_store_passphrase_adj =
 131             GTK_ADJUSTMENT(gtk_adjustment_new(1, 0, 1440, 1, 10, 0));
 132         spinbtn_store_passphrase =
 133             gtk_spin_button_new(GTK_ADJUSTMENT
 134                                 (spinbtn_store_passphrase_adj), 1, 0);
 135         gtk_widget_show(spinbtn_store_passphrase);
 136         gtk_box_pack_start(GTK_BOX(hbox1), spinbtn_store_passphrase, FALSE,
 137                            FALSE, 0);
 138         gtk_widget_set_size_request(spinbtn_store_passphrase, 64, -1);
 139         CLAWS_SET_TIP(spinbtn_store_passphrase,
 140                              _
 141                              ("Setting to '0' will store the passphrase for the whole session"));
 142         gtk_spin_button_set_numeric(GTK_SPIN_BUTTON
 143                                     (spinbtn_store_passphrase), TRUE);
 144
 145         label_expire2 = gtk_label_new(_("minute(s)"));
 146         gtk_widget_show(label_expire2);
 147         gtk_box_pack_start(GTK_BOX(hbox1), label_expire2, FALSE, FALSE, 0);
 148         gtk_misc_set_alignment(GTK_MISC(label_expire2), 0.0, 0.5);
 149
 150         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire1);
 151         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, spinbtn_store_passphrase);
 152         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire2);
 153
 154         PACK_CHECK_BUTTON (vbox2, checkbtn_passphrase_grab,
 155                         _("Grab input while entering a passphrase"));
 156
 157         vbox2 = gtk_vbox_new (FALSE, 0);
 158         gtk_widget_show (vbox2);
 159         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 160
 161         PACK_CHECK_BUTTON (vbox2, checkbtn_gpg_warning,
 162                         _("Display warning on start-up if GnuPG doesn't work"));
 163
 164         config = prefs_gpg_get_config();
 165
 166         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_auto_check_signatures), config->auto_check_signatures);
 167         if (!getenv("GPG_AGENT_INFO"))
 168                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), FALSE);
 169         else
 170                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), config->use_gpg_agent);
 171         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent)))
 172                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_store_passphrase), config->store_passphrase);
 173         gtk_spin_button_set_value(GTK_SPIN_BUTTON(spinbtn_store_passphrase), (float) config->store_passphrase_timeout);
 174         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_passphrase_grab), config->passphrase_grab);
 175         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_gpg_warning), config->gpg_warning);
 176
 177         page->checkbtn_auto_check_signatures = checkbtn_auto_check_signatures;
 178         page->checkbtn_store_passphrase = checkbtn_store_passphrase;
 179         page->spinbtn_store_passphrase = spinbtn_store_passphrase;
 180         page->checkbtn_passphrase_grab = checkbtn_passphrase_grab;
 181         page->checkbtn_gpg_warning = checkbtn_gpg_warning;
 182         page->checkbtn_use_gpg_agent = checkbtn_use_gpg_agent;
 183         page->page.widget = vbox1;
 184 }
 185
 186 static void prefs_gpg_destroy_widget_func(PrefsPage *_page)
 187 {
 188 }
 189
 190 static void prefs_gpg_save_func(PrefsPage *_page)
 191 {
 192         struct GPGPage *page = (struct GPGPage *) _page;
 193         GPGConfig *config = prefs_gpg_get_config();
 194
 195         config->auto_check_signatures =
 196                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_auto_check_signatures));
 197         config->use_gpg_agent =
 198                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_use_gpg_agent));
 199         config->store_passphrase =
 200                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_store_passphrase));
 201         config->store_passphrase_timeout =
 202                 gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(page->spinbtn_store_passphrase));
 203         config->passphrase_grab =
 204                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_passphrase_grab));
 205         config->gpg_warning =
 206                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_gpg_warning));
 207
 208         prefs_gpg_enable_agent(config->use_gpg_agent);
 209
 210         prefs_gpg_save_config();
 211 }
 212
 213 struct GPGAccountPage
 214 {
 215         PrefsPage page;
 216
 217         GtkWidget *key_default;
 218         GtkWidget *key_by_from;
 219         GtkWidget *key_custom;
 220         GtkWidget *keyid;
 221         GtkWidget *keyid_label;
 222         GtkWidget *new_key_label;
 223         GtkWidget *new_key_btn;
 224         GtkWidget *new_key_box;
 225
 226         PrefsAccount *account;
 227 };
 228
 229 void key_custom_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 230 {
 231         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 232         gboolean active;
 233
 234         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 235         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid_label), active);
 236         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid), active);
 237         if (!active)
 238                 gtk_editable_delete_text(GTK_EDITABLE(page->keyid), 0, -1);
 239 }
 240
 241 static void prefs_gpg_update_sens(struct GPGAccountPage *page)
 242 {
 243         gboolean active;
 244         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 245         if (sgpgme_has_secret_key()) {
 246                 gtk_widget_hide(page->new_key_box);
 247                 gtk_widget_set_sensitive(page->key_default, TRUE);
 248                 gtk_widget_set_sensitive(page->key_by_from, TRUE);
 249                 gtk_widget_set_sensitive(page->key_custom, TRUE);
 250                 gtk_widget_set_sensitive(page->keyid, active);
 251                 gtk_widget_set_sensitive(page->keyid_label, active);
 252         } else {
 253                 gtk_widget_show(page->new_key_box);
 254                 gtk_widget_set_sensitive(page->key_default, FALSE);
 255                 gtk_widget_set_sensitive(page->key_by_from, FALSE);
 256                 gtk_widget_set_sensitive(page->key_custom, FALSE);
 257                 gtk_widget_set_sensitive(page->keyid, FALSE);
 258                 gtk_widget_set_sensitive(page->keyid_label, FALSE);
 259         }
 260 }
 261
 262 static void new_key_clicked(GtkWidget *widget, gpointer user_data)
 263 {
 264         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 265         sgpgme_create_secret_key(page->account, FALSE);
 266         prefs_gpg_update_sens(page);
 267 }
 268
 269 static void prefs_gpg_account_create_widget_func(PrefsPage *_page,
 270                                                  GtkWindow *window,
 271                                                  gpointer data)
 272 {
 273         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 274         PrefsAccount *account = (PrefsAccount *) data;
 275         GPGAccountConfig *config;
 276
 277         GtkWidget *vbox;
 278         GtkWidget *frame1;
 279         GtkWidget *vbox2;
 280         GtkWidget *hbox;
 281         GSList *key_group = NULL;
 282         GtkWidget *key_default;
 283         GtkWidget *key_by_from;
 284         GtkWidget *key_custom;
 285         GtkWidget *keyid_label;
 286         GtkWidget *keyid;
 287         GtkWidget *image;
 288         GtkWidget *new_key_label;
 289         GtkWidget *new_key_btn;
 290         GtkWidget *new_key_box;
 291
 292         vbox = gtk_vbox_new(FALSE, VSPACING);
 293         gtk_container_set_border_width (GTK_CONTAINER (vbox), VBOX_BORDER);
 294         gtk_widget_show(vbox);
 295
 296         vbox2 = gtkut_get_options_frame(vbox, &frame1, _("Sign key"));
 297
 298         hbox = gtk_hbox_new (FALSE, 5);
 299         gtk_widget_show (hbox);
 300         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 301         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 302
 303         key_default = gtk_radio_button_new_with_label(key_group,
 304                         _("Use default GnuPG key"));
 305         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_default));
 306         gtk_widget_show(key_default);
 307         gtk_box_pack_start(GTK_BOX(hbox), key_default, FALSE, FALSE, 0);
 308
 309         hbox = gtk_hbox_new (FALSE, 5);
 310         gtk_widget_show (hbox);
 311         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 312         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 313
 314         key_by_from = gtk_radio_button_new_with_label(key_group,
 315                 _("Select key by your email address"));
 316         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_by_from));
 317         gtk_widget_show(key_by_from);
 318         gtk_box_pack_start(GTK_BOX(hbox), key_by_from, FALSE, FALSE, 0);
 319
 320         hbox = gtk_hbox_new (FALSE, 5);
 321         gtk_widget_show (hbox);
 322         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 323         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 324
 325         key_custom = gtk_radio_button_new_with_label(key_group,
 326                 _("Specify key manually"));
 327         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_custom));
 328         gtk_widget_show(key_custom);
 329         gtk_box_pack_start(GTK_BOX(hbox), key_custom, FALSE, FALSE, 0);
 330
 331         hbox = gtk_hbox_new (FALSE, 5);
 332         gtk_widget_show (hbox);
 333         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 334         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 335
 336         keyid_label = gtk_label_new(_("User or key ID:"));
 337         gtk_widget_show(keyid_label);
 338         gtk_label_set_justify(GTK_LABEL(keyid_label), GTK_JUSTIFY_LEFT);
 339         gtk_box_pack_start(GTK_BOX(hbox), keyid_label, FALSE, FALSE, 0);
 340
 341         keyid = gtk_entry_new();
 342         gtk_widget_show(keyid);
 343         gtk_box_pack_start(GTK_BOX(hbox), keyid, FALSE, FALSE, 0);
 344
 345         config = prefs_gpg_account_get_config(account);
 346         switch (config->sign_key) {
 347         case SIGN_KEY_DEFAULT:
 348                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_default), TRUE);
 349                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 350                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 351                 break;
 352         case SIGN_KEY_BY_FROM:
 353                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_by_from), TRUE);
 354                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 355                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 356                 break;
 357         case SIGN_KEY_CUSTOM:
 358                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_custom), TRUE);
 359                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), TRUE);
 360                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), TRUE);
 361                 break;
 362         }
 363
 364         hbox = gtk_hbox_new (FALSE, 5);
 365         gtk_widget_show (hbox);
 366         gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
 367
 368         new_key_box = gtk_hbox_new(FALSE, 6);
 369         gtk_widget_show(new_key_box);
 370         gtk_box_pack_start(GTK_BOX(hbox), new_key_box, FALSE, FALSE, 0);
 371
 372         image = gtk_image_new_from_stock(GTK_STOCK_DIALOG_WARNING,
 373                         GTK_ICON_SIZE_SMALL_TOOLBAR);
 374
 375         gtk_box_pack_start(GTK_BOX(new_key_box), image, FALSE, FALSE, 0);
 376         new_key_label = gtk_label_new(
 377                         _("No secret key found."));
 378         gtk_box_pack_start(GTK_BOX(new_key_box), new_key_label, FALSE, FALSE, 0);
 379
 380         new_key_btn = gtk_button_new_with_label(_("Generate a new key pair"));
 381         gtk_widget_show(new_key_btn);
 382         gtk_box_pack_start(GTK_BOX(hbox), new_key_btn, FALSE, FALSE, 0);
 383
 384         if (config->sign_key_id != NULL)
 385                 gtk_entry_set_text(GTK_ENTRY(keyid), config->sign_key_id);
 386
 387         g_signal_connect(G_OBJECT(key_custom), "toggled", G_CALLBACK(key_custom_toggled), page);
 388         g_signal_connect(G_OBJECT(new_key_btn), "clicked", G_CALLBACK(new_key_clicked), page);
 389
 390         page->key_default = key_default;
 391         page->key_by_from = key_by_from;
 392         page->key_custom = key_custom;
 393         page->keyid = keyid;
 394         page->keyid_label = keyid_label;
 395         page->new_key_box = new_key_box;
 396
 397         page->page.widget = vbox;
 398         page->account = account;
 399         prefs_gpg_update_sens(page);
 400 }
 401
 402 static void prefs_gpg_account_destroy_widget_func(PrefsPage *_page)
 403 {
 404         /* nothing to do here */
 405 }
 406
 407 static void prefs_gpg_account_save_func(PrefsPage *_page)
 408 {
 409         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 410         GPGAccountConfig *config;
 411
 412         config = prefs_gpg_account_get_config(page->account);
 413
 414         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_default)))
 415                 config->sign_key = SIGN_KEY_DEFAULT;
 416         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_by_from)))
 417                 config->sign_key = SIGN_KEY_BY_FROM;
 418         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom))) {
 419                 config->sign_key = SIGN_KEY_CUSTOM;
 420                 g_free(config->sign_key_id);
 421                 config->sign_key_id = gtk_editable_get_chars(GTK_EDITABLE(page->keyid), 0, -1);
 422         }
 423
 424         prefs_gpg_account_set_config(page->account, config);
 425         prefs_gpg_account_free_config(config);
 426 }
 427
 428 GPGConfig *prefs_gpg_get_config(void)
 429 {
 430         return &prefs_gpg;
 431 }
 432
 433 void prefs_gpg_save_config(void)
 434 {
 435         PrefFile *pfile;
 436         gchar *rcpath;
 437
 438         debug_print("Saving GPG config\n");
 439
 440         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 441         pfile = prefs_write_open(rcpath);
 442         g_free(rcpath);
 443         if (!pfile || (prefs_set_block_label(pfile, "GPG") < 0))
 444                 return;
 445
 446         if (prefs_write_param(param, pfile->fp) < 0) {
 447                 g_warning("failed to write GPG configuration to file\n");
 448                 prefs_file_close_revert(pfile);
 449                 return;
 450         }
 451         if (fprintf(pfile->fp, "\n") < 0) {
 452                 FILE_OP_ERROR(rcpath, "fprintf");
 453                 prefs_file_close_revert(pfile);
 454         } else
 455                 prefs_file_close(pfile);
 456 }
 457
 458 struct GPGAccountConfig *prefs_gpg_account_get_config(PrefsAccount *account)
 459 {
 460         GPGAccountConfig *config;
 461         const gchar *confstr;
 462         gchar **strv;
 463
 464         config = g_new0(GPGAccountConfig, 1);
 465         config->sign_key = SIGN_KEY_DEFAULT;
 466         config->sign_key_id = NULL;
 467
 468         confstr = prefs_account_get_privacy_prefs(account, "gpg");
 469         if (confstr == NULL)
 470                 return config;
 471
 472         strv = g_strsplit(confstr, ";", 0);
 473         if (strv[0] != NULL) {
 474                 if (!strcmp(strv[0], "DEFAULT"))
 475                         config->sign_key = SIGN_KEY_DEFAULT;
 476                 if (!strcmp(strv[0], "BY_FROM"))
 477                         config->sign_key = SIGN_KEY_BY_FROM;
 478                 if (!strcmp(strv[0], "CUSTOM")) {
 479                         if (strv[1] != NULL) {
 480                                 config->sign_key = SIGN_KEY_CUSTOM;
 481                                 config->sign_key_id = g_strdup(strv[1]);
 482                         } else
 483                                 config->sign_key = SIGN_KEY_DEFAULT;
 484                 }
 485         }
 486         g_strfreev(strv);
 487
 488         return config;
 489 }
 490
 491 void prefs_gpg_account_set_config(PrefsAccount *account, GPGAccountConfig *config)
 492 {
 493         gchar *confstr = NULL;
 494
 495         switch (config->sign_key) {
 496         case SIGN_KEY_DEFAULT:
 497                 confstr = g_strdup("DEFAULT");
 498                 break;
 499         case SIGN_KEY_BY_FROM:
 500                 confstr = g_strdup("BY_FROM");
 501                 break;
 502         case SIGN_KEY_CUSTOM:
 503                 confstr = g_strdup_printf("CUSTOM;%s", config->sign_key_id);
 504                 break;
 505         default:
 506                 confstr = g_strdup("");
 507                 g_warning("prefs_gpg_account_set_config: bad sign_key val\n");
 508         }
 509
 510         prefs_account_set_privacy_prefs(account, "gpg", confstr);
 511
 512         g_free(confstr);
 513 }
 514
 515 void prefs_gpg_account_free_config(GPGAccountConfig *config)
 516 {
 517         g_free(config->sign_key_id);
 518         g_free(config);
 519 }
 520
 521 static struct GPGPage gpg_page;
 522 static struct GPGAccountPage gpg_account_page;
 523
 524 void prefs_gpg_enable_agent(gboolean enable)
 525 {
 526         if (enable) {
 527                 if (saved_gpg_agent_info) {
 528                         g_setenv("GPG_AGENT_INFO",
 529                                  saved_gpg_agent_info, TRUE);
 530                         debug_print("set GPG_AGENT_INFO=%s\n",
 531                                 saved_gpg_agent_info);
 532                 } else {
 533                         debug_print("Can't enable gpg agent (no GPG_AGENT_INFO)\n");
 534                 }
 535         } else {
 536                 if (saved_gpg_agent_info) {
 537                         g_unsetenv("GPG_AGENT_INFO");
 538                         debug_print("unset GPG_AGENT_INFO=%s\n",
 539                                 saved_gpg_agent_info);
 540                 } else {
 541                         debug_print("Can't disable gpg agent (no GPG_AGENT_INFO)\n");
 542                 }
 543         }
 544 }
 545
 546 void prefs_gpg_init()
 547 {
 548         static gchar *path[3];
 549         gchar *rcpath;
 550         const gchar *tmp = NULL;
 551
 552         prefs_set_default(param);
 553         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 554         prefs_read_config(param, "GPG", rcpath, NULL);
 555         g_free(rcpath);
 556
 557         path[0] = _("Plugins");
 558         path[1] = _("GPG");
 559         path[2] = NULL;
 560
 561         gpg_page.page.path = path;
 562         gpg_page.page.create_widget = prefs_gpg_create_widget_func;
 563         gpg_page.page.destroy_widget = prefs_gpg_destroy_widget_func;
 564         gpg_page.page.save_page = prefs_gpg_save_func;
 565         gpg_page.page.weight = 30.0;
 566
 567         prefs_gtk_register_page((PrefsPage *) &gpg_page);
 568
 569         gpg_account_page.page.path = path;
 570         gpg_account_page.page.create_widget = prefs_gpg_account_create_widget_func;
 571         gpg_account_page.page.destroy_widget = prefs_gpg_account_destroy_widget_func;
 572         gpg_account_page.page.save_page = prefs_gpg_account_save_func;
 573         gpg_account_page.page.weight = 30.0;
 574
 575         prefs_account_register_page((PrefsPage *) &gpg_account_page);
 576
 577         tmp = g_getenv("GPG_AGENT_INFO");
 578         if (tmp)
 579                 saved_gpg_agent_info = g_strdup(tmp);
 580
 581         prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
 582 }
 583
 584 void prefs_gpg_done()
 585 {
 586         prefs_gtk_unregister_page((PrefsPage *) &gpg_page);
 587         prefs_account_unregister_page((PrefsPage *) &gpg_account_page);
 588         prefs_gpg_enable_agent(TRUE);
 589 }
 590
 591 gboolean prefs_gpg_should_skip_encryption_warning(const gchar *systemid)
 592 {
 593         gchar **systems = NULL;
 594         int i = 0;
 595         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 596                 return FALSE;
 597         systems = g_strsplit(prefs_gpg_get_config()->skip_encryption_warning,
 598                                 ",", -1);
 599         while (systems && systems[i]) {
 600                 debug_print(" cmp %s %s\n", systems[i], systemid);
 601                 if (!strcmp(systems[i],systemid)) {
 602                         g_strfreev(systems);
 603                         return TRUE;
 604                 }
 605                 i++;
 606         }
 607         g_strfreev(systems);
 608         return FALSE;
 609 }
 610
 611 void prefs_gpg_add_skip_encryption_warning(const gchar *systemid)
 612 {
 613         gchar *tmp = NULL;
 614         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 615                 prefs_gpg_get_config()->skip_encryption_warning =
 616                         g_strdup_printf("%s,", systemid);
 617         else if (!prefs_gpg_should_skip_encryption_warning(systemid)) {
 618                 tmp = g_strdup_printf("%s%s,",
 619                         prefs_gpg_get_config()->skip_encryption_warning,
 620                         systemid);
 621                 g_free(prefs_gpg_get_config()->skip_encryption_warning);
 622                 prefs_gpg_get_config()->skip_encryption_warning = tmp;
 623         }
 624         prefs_gpg_save_config();
 625 }
 626
 627 void prefs_gpg_remove_skip_encryption_warning(const gchar *systemid)
 628 {
 629         gchar **systems = NULL;
 630         int i = 0;
 631         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 632                 return;
 633
 634         if (prefs_gpg_should_skip_encryption_warning(systemid)) {
 635                 systems = g_strsplit(prefs_gpg_get_config()->skip_encryption_warning,
 636                                 ",", -1);
 637                 g_free(prefs_gpg_get_config()->skip_encryption_warning);
 638                 prefs_gpg_get_config()->skip_encryption_warning = NULL;
 639
 640                 while (systems && systems[i]) {
 641                         if (!strcmp(systems[i],systemid)) {
 642                                 i++;
 643                                 continue;
 644                         }
 645                         prefs_gpg_add_skip_encryption_warning(systems[i]);
 646                         i++;
 647                 }
 648
 649                 g_strfreev(systems);
 650         }
 651         prefs_gpg_save_config();
 652 }
 653
 654 gboolean prefs_gpg_auto_check_signatures(void)
 655 {
 656         return prefs_gpg_get_config()->auto_check_signatures;
 657 }