src/plugins/pgpcore/prefs_gpg.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 2004-2015 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 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #include "claws-features.h"
  22 #endif
  23
  24 #include <gtk/gtk.h>
  25 #include <glib.h>
  26 #include <glib/gi18n.h>
  27
  28 #include <gtk/filesel.h>
  29
  30 #include "defs.h"
  31 #include "gtk/gtkutils.h"
  32 #include "utils.h"
  33 #include "prefs.h"
  34 #include "prefs_common.h"
  35 #include "prefs_gtk.h"
  36 #include "prefs_gpg.h"
  37 #include "sgpgme.h"
  38
  39 struct GPGConfig prefs_gpg;
  40
  41 static PrefParam param[] = {
  42         /* Privacy */
  43         {"auto_check_signatures", "FALSE",
  44          &prefs_gpg.auto_check_signatures, P_BOOL,
  45          NULL, NULL, NULL},
  46         {"autocompletion", "FALSE",
  47          &prefs_gpg.autocompletion, P_BOOL,
  48          NULL, NULL, NULL},
  49         {"autocompletion_limit", "0",
  50          &prefs_gpg.autocompletion_limit, P_INT,
  51          NULL, NULL, NULL},
  52         {"use_gpg_agent", "TRUE", &prefs_gpg.use_gpg_agent, P_BOOL,
  53          NULL, NULL, NULL},
  54         {"store_passphrase", "FALSE", &prefs_gpg.store_passphrase, P_BOOL,
  55          NULL, NULL, NULL},
  56         {"store_passphrase_timeout", "0",
  57          &prefs_gpg.store_passphrase_timeout, P_INT,
  58          NULL, NULL, NULL},
  59         {"passphrase_grab", "FALSE", &prefs_gpg.passphrase_grab, P_BOOL,
  60          NULL, NULL, NULL},
  61         {"gpg_warning", "TRUE", &prefs_gpg.gpg_warning, P_BOOL,
  62          NULL, NULL, NULL},
  63         {"gpg_ask_create_key", "TRUE", &prefs_gpg.gpg_ask_create_key, P_BOOL,
  64          NULL, NULL, NULL},
  65         {"skip_encryption_warning", "", &prefs_gpg.skip_encryption_warning, P_STRING,
  66          NULL, NULL, NULL},
  67         {"gpg_path", "", &prefs_gpg.gpg_path, P_STRING,
  68          NULL, NULL, NULL},
  69
  70         {NULL, NULL, NULL, P_OTHER, NULL, NULL, NULL}
  71 };
  72
  73 static gchar *saved_gpg_agent_info = NULL;
  74 static void gpg_path_browse_cb(GtkWidget *widget, gpointer data);
  75
  76 struct GPGPage
  77 {
  78         PrefsPage page;
  79
  80         GtkWidget *checkbtn_auto_check_signatures;
  81         GtkWidget *checkbtn_autocompletion;
  82         GtkWidget *checkbtn_use_gpg_agent;
  83         GtkWidget *checkbtn_store_passphrase;
  84         GtkWidget *spinbtn_store_passphrase;
  85         GtkWidget *checkbtn_passphrase_grab;
  86         GtkWidget *checkbtn_gpg_warning;
  87         GtkWidget *gpg_path;
  88 };
  89
  90 static void prefs_gpg_create_widget_func(PrefsPage *_page,
  91                                          GtkWindow *window,
  92                                          gpointer data)
  93 {
  94         struct GPGPage *page = (struct GPGPage *) _page;
  95         struct GPGConfig *config;
  96
  97         GtkWidget *checkbtn_use_gpg_agent;
  98         GtkWidget *checkbtn_passphrase_grab;
  99         GtkWidget *checkbtn_store_passphrase;
 100         GtkWidget *checkbtn_auto_check_signatures;
 101         GtkWidget *checkbtn_autocompletion;
 102         GtkWidget *checkbtn_gpg_warning;
 103         GtkWidget *hbox1, *hbox2;
 104         GtkWidget *vbox1, *vbox2;
 105         GtkWidget *label_gpg_path;
 106         GtkWidget *label_expire1;
 107         GtkAdjustment *spinbtn_store_passphrase_adj;
 108         GtkWidget *spinbtn_store_passphrase;
 109         GtkWidget *label_expire2;
 110         GtkWidget *frame_passphrase;
 111         GtkWidget *gpg_path, *gpg_path_btn;
 112
 113         vbox1 = gtk_vbox_new (FALSE, VSPACING);
 114         gtk_widget_show (vbox1);
 115         gtk_container_set_border_width (GTK_CONTAINER (vbox1), VBOX_BORDER);
 116
 117         vbox2 = gtk_vbox_new (FALSE, 0);
 118         gtk_widget_show (vbox2);
 119         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 120
 121         PACK_CHECK_BUTTON (vbox2, checkbtn_auto_check_signatures,
 122                         _("Automatically check signatures"));
 123
 124         PACK_CHECK_BUTTON (vbox2, checkbtn_autocompletion,
 125                         _("Use keyring for address autocompletion"));
 126
 127         vbox2 = gtkut_get_options_frame(vbox1, &frame_passphrase, _("Passphrase"));
 128
 129         PACK_CHECK_BUTTON (vbox2, checkbtn_use_gpg_agent,
 130                         _("Use gpg-agent to manage passwords"));
 131         if (saved_gpg_agent_info == NULL)
 132                 gtk_widget_set_sensitive(checkbtn_use_gpg_agent, FALSE);
 133
 134         PACK_CHECK_BUTTON (vbox2, checkbtn_store_passphrase,
 135                         _("Store passphrase in memory"));
 136
 137         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, checkbtn_store_passphrase);
 138
 139         hbox1 = gtk_hbox_new (FALSE, 8);
 140         gtk_widget_show (hbox1);
 141         gtk_box_pack_start (GTK_BOX (vbox2), hbox1, FALSE, FALSE, 0);
 142
 143         SET_TOGGLE_SENSITIVITY_REVERSE(checkbtn_use_gpg_agent, hbox1);
 144
 145         label_expire1 = gtk_label_new(_("Expire after"));
 146         gtk_widget_show (label_expire1);
 147         gtk_box_pack_start (GTK_BOX (hbox1), label_expire1, FALSE, FALSE, 0);
 148
 149         spinbtn_store_passphrase_adj =
 150             GTK_ADJUSTMENT(gtk_adjustment_new(1, 0, 1440, 1, 10, 0));
 151         spinbtn_store_passphrase =
 152             gtk_spin_button_new(GTK_ADJUSTMENT
 153                                 (spinbtn_store_passphrase_adj), 1, 0);
 154         gtk_widget_show(spinbtn_store_passphrase);
 155         gtk_box_pack_start(GTK_BOX(hbox1), spinbtn_store_passphrase, FALSE,
 156                            FALSE, 0);
 157         gtk_widget_set_size_request(spinbtn_store_passphrase, 64, -1);
 158         CLAWS_SET_TIP(spinbtn_store_passphrase,
 159                       _("Setting to '0' will store the passphrase for the whole session"));
 160         gtk_spin_button_set_numeric(GTK_SPIN_BUTTON
 161                                     (spinbtn_store_passphrase), TRUE);
 162
 163         label_expire2 = gtk_label_new(_("minute(s)"));
 164         gtk_widget_show(label_expire2);
 165         gtk_box_pack_start(GTK_BOX(hbox1), label_expire2, FALSE, FALSE, 0);
 166         gtk_misc_set_alignment(GTK_MISC(label_expire2), 0.0, 0.5);
 167
 168         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire1);
 169         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, spinbtn_store_passphrase);
 170         SET_TOGGLE_SENSITIVITY (checkbtn_store_passphrase, label_expire2);
 171
 172         PACK_CHECK_BUTTON (vbox2, checkbtn_passphrase_grab,
 173                         _("Grab input while entering a passphrase"));
 174
 175         vbox2 = gtk_vbox_new (FALSE, 0);
 176         gtk_widget_show (vbox2);
 177         gtk_box_pack_start (GTK_BOX (vbox1), vbox2, FALSE, FALSE, 0);
 178
 179         PACK_CHECK_BUTTON (vbox2, checkbtn_gpg_warning,
 180                         _("Display warning on start-up if GnuPG doesn't work"));
 181
 182         hbox2 = gtk_hbox_new(FALSE, 6);
 183         label_gpg_path = gtk_label_new(_("Path to GnuPG executable"));
 184         gtk_box_pack_start(GTK_BOX(hbox2), label_gpg_path, FALSE, FALSE, 0);
 185         gpg_path = gtk_entry_new();
 186         gtk_box_pack_start(GTK_BOX(hbox2), gpg_path, TRUE, TRUE, 0);
 187         CLAWS_SET_TIP(gpg_path,
 188                       _("If left blank the location of the GnuPG executable will be automatically determined."));
 189         gpg_path_btn = gtkut_get_browse_file_btn(_("Bro_wse"));
 190         gtk_box_pack_start(GTK_BOX(hbox2), gpg_path_btn, FALSE, FALSE, 0);
 191         g_signal_connect(G_OBJECT(gpg_path_btn), "clicked",
 192                          G_CALLBACK(gpg_path_browse_cb), gpg_path);
 193         pref_set_entry_from_pref(GTK_ENTRY(gpg_path), prefs_gpg.gpg_path);
 194
 195         gtk_box_pack_start(GTK_BOX(vbox2), hbox2, FALSE, FALSE, 0);
 196         gtk_widget_show_all(vbox1);
 197
 198         config = prefs_gpg_get_config();
 199
 200         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_auto_check_signatures), config->auto_check_signatures);
 201         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_autocompletion), config->autocompletion);
 202         if (!g_getenv("GPG_AGENT_INFO"))
 203                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), FALSE);
 204         else
 205                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent), config->use_gpg_agent);
 206         if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(checkbtn_use_gpg_agent)))
 207                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_store_passphrase), config->store_passphrase);
 208         gtk_spin_button_set_value(GTK_SPIN_BUTTON(spinbtn_store_passphrase), (float) config->store_passphrase_timeout);
 209         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_passphrase_grab), config->passphrase_grab);
 210         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(checkbtn_gpg_warning), config->gpg_warning);
 211         gtk_entry_set_text(GTK_ENTRY(gpg_path), config->gpg_path);
 212
 213         page->checkbtn_auto_check_signatures = checkbtn_auto_check_signatures;
 214         page->checkbtn_autocompletion = checkbtn_autocompletion;
 215         page->checkbtn_store_passphrase = checkbtn_store_passphrase;
 216         page->spinbtn_store_passphrase = spinbtn_store_passphrase;
 217         page->checkbtn_passphrase_grab = checkbtn_passphrase_grab;
 218         page->checkbtn_gpg_warning = checkbtn_gpg_warning;
 219         page->checkbtn_use_gpg_agent = checkbtn_use_gpg_agent;
 220         page->gpg_path = gpg_path;
 221         page->page.widget = vbox1;
 222 }
 223
 224 static void gpg_path_browse_cb(GtkWidget* widget, gpointer data)
 225 {
 226         gchar *filename;
 227         GtkEntry *dest = GTK_ENTRY(data);
 228
 229         filename = filesel_select_file_open(_("Select GnuPG executable"), NULL);
 230         if (!filename)
 231                 return;
 232
 233         gtk_entry_set_text(GTK_ENTRY(dest), filename);
 234         g_free(filename);
 235 }
 236
 237 static void prefs_gpg_destroy_widget_func(PrefsPage *_page)
 238 {
 239 }
 240
 241 static void prefs_gpg_save_func(PrefsPage *_page)
 242 {
 243         struct GPGPage *page = (struct GPGPage *) _page;
 244         GPGConfig *config = prefs_gpg_get_config();
 245
 246         config->auto_check_signatures =
 247                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_auto_check_signatures));
 248         config->autocompletion =
 249                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_autocompletion));
 250         config->use_gpg_agent =
 251                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_use_gpg_agent));
 252         config->store_passphrase =
 253                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_store_passphrase));
 254         config->store_passphrase_timeout =
 255                 gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(page->spinbtn_store_passphrase));
 256         config->passphrase_grab =
 257                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_passphrase_grab));
 258         config->gpg_warning =
 259                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->checkbtn_gpg_warning));
 260         g_free(config->gpg_path);
 261         config->gpg_path = g_strdup(gtk_entry_get_text(GTK_ENTRY(page->gpg_path)));
 262         if (strcmp(config->gpg_path, "") != 0 && access(config->gpg_path, X_OK) != -1) {
 263                 gpgme_error_t err = gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP, config->gpg_path, NULL);
 264                 if (err != GPG_ERR_NO_ERROR)
 265                         g_warning("failed to set crypto engine configuration: %s", gpgme_strerror(err));
 266         }
 267
 268         prefs_gpg_enable_agent(config->use_gpg_agent);
 269
 270         prefs_gpg_save_config();
 271 }
 272
 273 struct GPGAccountPage
 274 {
 275         PrefsPage page;
 276
 277         GtkWidget *key_default;
 278         GtkWidget *key_by_from;
 279         GtkWidget *key_custom;
 280         GtkWidget *keyid;
 281         GtkWidget *keyid_label;
 282         GtkWidget *new_key_label;
 283         GtkWidget *new_key_btn;
 284         GtkWidget *new_key_box;
 285
 286         PrefsAccount *account;
 287 };
 288
 289 void key_custom_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 290 {
 291         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 292         gboolean active;
 293
 294         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 295         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid_label), active);
 296         gtk_widget_set_sensitive(GTK_WIDGET(page->keyid), active);
 297         if (!active)
 298                 gtk_editable_delete_text(GTK_EDITABLE(page->keyid), 0, -1);
 299 }
 300
 301 static void prefs_gpg_update_sens(struct GPGAccountPage *page)
 302 {
 303         gboolean active;
 304         active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom));
 305         if (sgpgme_has_secret_key()) {
 306                 gtk_widget_hide(page->new_key_box);
 307                 gtk_widget_set_sensitive(page->key_default, TRUE);
 308                 gtk_widget_set_sensitive(page->key_by_from, TRUE);
 309                 gtk_widget_set_sensitive(page->key_custom, TRUE);
 310                 gtk_widget_set_sensitive(page->keyid, active);
 311                 gtk_widget_set_sensitive(page->keyid_label, active);
 312         } else {
 313                 gtk_widget_show(page->new_key_box);
 314                 gtk_widget_set_sensitive(page->key_default, FALSE);
 315                 gtk_widget_set_sensitive(page->key_by_from, FALSE);
 316                 gtk_widget_set_sensitive(page->key_custom, FALSE);
 317                 gtk_widget_set_sensitive(page->keyid, FALSE);
 318                 gtk_widget_set_sensitive(page->keyid_label, FALSE);
 319         }
 320 }
 321
 322 static void new_key_clicked(GtkWidget *widget, gpointer user_data)
 323 {
 324         struct GPGAccountPage *page = (struct GPGAccountPage *) user_data;
 325         sgpgme_create_secret_key(page->account, FALSE);
 326         prefs_gpg_update_sens(page);
 327 }
 328
 329 static void prefs_gpg_account_create_widget_func(PrefsPage *_page,
 330                                                  GtkWindow *window,
 331                                                  gpointer data)
 332 {
 333         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 334         PrefsAccount *account = (PrefsAccount *) data;
 335         GPGAccountConfig *config;
 336
 337         GtkWidget *vbox;
 338         GtkWidget *frame1;
 339         GtkWidget *vbox2;
 340         GtkWidget *hbox;
 341         GSList *key_group = NULL;
 342         GtkWidget *key_default;
 343         GtkWidget *key_by_from;
 344         GtkWidget *key_custom;
 345         GtkWidget *keyid_label;
 346         GtkWidget *keyid;
 347         GtkWidget *image;
 348         GtkWidget *new_key_label;
 349         GtkWidget *new_key_btn;
 350         GtkWidget *new_key_box;
 351
 352         vbox = gtk_vbox_new(FALSE, VSPACING);
 353         gtk_container_set_border_width (GTK_CONTAINER (vbox), VBOX_BORDER);
 354         gtk_widget_show(vbox);
 355
 356         vbox2 = gtkut_get_options_frame(vbox, &frame1, _("Sign key"));
 357
 358         hbox = gtk_hbox_new (FALSE, 5);
 359         gtk_widget_show (hbox);
 360         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 361         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 362
 363         key_default = gtk_radio_button_new_with_label(key_group,
 364                         _("Use default GnuPG key"));
 365         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_default));
 366         gtk_widget_show(key_default);
 367         gtk_box_pack_start(GTK_BOX(hbox), key_default, FALSE, FALSE, 0);
 368
 369         hbox = gtk_hbox_new (FALSE, 5);
 370         gtk_widget_show (hbox);
 371         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 372         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 373
 374         key_by_from = gtk_radio_button_new_with_label(key_group,
 375                 _("Select key by your email address"));
 376         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_by_from));
 377         gtk_widget_show(key_by_from);
 378         gtk_box_pack_start(GTK_BOX(hbox), key_by_from, FALSE, FALSE, 0);
 379
 380         hbox = gtk_hbox_new (FALSE, 5);
 381         gtk_widget_show (hbox);
 382         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 383         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 384
 385         key_custom = gtk_radio_button_new_with_label(key_group,
 386                 _("Specify key manually"));
 387         key_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(key_custom));
 388         gtk_widget_show(key_custom);
 389         gtk_box_pack_start(GTK_BOX(hbox), key_custom, FALSE, FALSE, 0);
 390
 391         hbox = gtk_hbox_new (FALSE, 5);
 392         gtk_widget_show (hbox);
 393         gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
 394         gtk_container_set_border_width (GTK_CONTAINER (hbox), 0);
 395
 396         keyid_label = gtk_label_new(_("User or key ID:"));
 397         gtk_widget_show(keyid_label);
 398         gtk_label_set_justify(GTK_LABEL(keyid_label), GTK_JUSTIFY_LEFT);
 399         gtk_box_pack_start(GTK_BOX(hbox), keyid_label, FALSE, FALSE, 0);
 400
 401         keyid = gtk_entry_new();
 402         gtk_widget_show(keyid);
 403         gtk_box_pack_start(GTK_BOX(hbox), keyid, FALSE, FALSE, 0);
 404
 405         config = prefs_gpg_account_get_config(account);
 406         switch (config->sign_key) {
 407         case SIGN_KEY_DEFAULT:
 408                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_default), TRUE);
 409                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 410                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 411                 break;
 412         case SIGN_KEY_BY_FROM:
 413                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_by_from), TRUE);
 414                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), FALSE);
 415                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), FALSE);
 416                 break;
 417         case SIGN_KEY_CUSTOM:
 418                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(key_custom), TRUE);
 419                 gtk_widget_set_sensitive(GTK_WIDGET(keyid_label), TRUE);
 420                 gtk_widget_set_sensitive(GTK_WIDGET(keyid), TRUE);
 421                 break;
 422         }
 423
 424         hbox = gtk_hbox_new (FALSE, 5);
 425         gtk_widget_show (hbox);
 426         gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
 427
 428         new_key_box = gtk_hbox_new(FALSE, 6);
 429         gtk_widget_show(new_key_box);
 430         gtk_box_pack_start(GTK_BOX(hbox), new_key_box, FALSE, FALSE, 0);
 431
 432         image = gtk_image_new_from_stock(GTK_STOCK_DIALOG_WARNING,
 433                         GTK_ICON_SIZE_SMALL_TOOLBAR);
 434
 435         gtk_box_pack_start(GTK_BOX(new_key_box), image, FALSE, FALSE, 0);
 436         new_key_label = gtk_label_new(
 437                         _("No secret key found."));
 438         gtk_box_pack_start(GTK_BOX(new_key_box), new_key_label, FALSE, FALSE, 0);
 439
 440         new_key_btn = gtk_button_new_with_label(_("Generate a new key pair"));
 441         gtk_widget_show(new_key_btn);
 442         gtk_box_pack_start(GTK_BOX(hbox), new_key_btn, FALSE, FALSE, 0);
 443
 444         if (config->sign_key_id != NULL)
 445                 gtk_entry_set_text(GTK_ENTRY(keyid), config->sign_key_id);
 446
 447         g_signal_connect(G_OBJECT(key_custom), "toggled", G_CALLBACK(key_custom_toggled), page);
 448         g_signal_connect(G_OBJECT(new_key_btn), "clicked", G_CALLBACK(new_key_clicked), page);
 449
 450         page->key_default = key_default;
 451         page->key_by_from = key_by_from;
 452         page->key_custom = key_custom;
 453         page->keyid = keyid;
 454         page->keyid_label = keyid_label;
 455         page->new_key_box = new_key_box;
 456
 457         page->page.widget = vbox;
 458         page->account = account;
 459         prefs_gpg_update_sens(page);
 460 }
 461
 462 static void prefs_gpg_account_destroy_widget_func(PrefsPage *_page)
 463 {
 464         /* nothing to do here */
 465 }
 466
 467 static void prefs_gpg_account_save_func(PrefsPage *_page)
 468 {
 469         struct GPGAccountPage *page = (struct GPGAccountPage *) _page;
 470         GPGAccountConfig *config;
 471
 472         config = prefs_gpg_account_get_config(page->account);
 473
 474         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_default)))
 475                 config->sign_key = SIGN_KEY_DEFAULT;
 476         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_by_from)))
 477                 config->sign_key = SIGN_KEY_BY_FROM;
 478         else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(page->key_custom))) {
 479                 config->sign_key = SIGN_KEY_CUSTOM;
 480                 g_free(config->sign_key_id);
 481                 config->sign_key_id = gtk_editable_get_chars(GTK_EDITABLE(page->keyid), 0, -1);
 482         }
 483
 484         prefs_gpg_account_set_config(page->account, config);
 485         prefs_gpg_account_free_config(config);
 486 }
 487
 488 GPGConfig *prefs_gpg_get_config(void)
 489 {
 490         return &prefs_gpg;
 491 }
 492
 493 void prefs_gpg_save_config(void)
 494 {
 495         PrefFile *pfile;
 496         gchar *rcpath;
 497
 498         debug_print("Saving GPG config\n");
 499
 500         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 501         pfile = prefs_write_open(rcpath);
 502         g_free(rcpath);
 503         if (!pfile || (prefs_set_block_label(pfile, "GPG") < 0))
 504                 return;
 505
 506         if (prefs_write_param(param, pfile->fp) < 0) {
 507                 g_warning("failed to write GPG configuration to file");
 508                 prefs_file_close_revert(pfile);
 509                 return;
 510         }
 511         if (fprintf(pfile->fp, "\n") < 0) {
 512                 FILE_OP_ERROR(rcpath, "fprintf");
 513                 prefs_file_close_revert(pfile);
 514         } else
 515                 prefs_file_close(pfile);
 516 }
 517
 518 struct GPGAccountConfig *prefs_gpg_account_get_config(PrefsAccount *account)
 519 {
 520         GPGAccountConfig *config;
 521         const gchar *confstr;
 522         gchar **strv;
 523
 524         config = g_new0(GPGAccountConfig, 1);
 525         config->sign_key = SIGN_KEY_DEFAULT;
 526         config->sign_key_id = NULL;
 527
 528         confstr = prefs_account_get_privacy_prefs(account, "gpg");
 529         if (confstr == NULL)
 530                 return config;
 531
 532         strv = g_strsplit(confstr, ";", 0);
 533         if (strv[0] != NULL) {
 534                 if (!strcmp(strv[0], "DEFAULT"))
 535                         config->sign_key = SIGN_KEY_DEFAULT;
 536                 if (!strcmp(strv[0], "BY_FROM"))
 537                         config->sign_key = SIGN_KEY_BY_FROM;
 538                 if (!strcmp(strv[0], "CUSTOM")) {
 539                         if (strv[1] != NULL) {
 540                                 config->sign_key = SIGN_KEY_CUSTOM;
 541                                 config->sign_key_id = g_strdup(strv[1]);
 542                         } else
 543                                 config->sign_key = SIGN_KEY_DEFAULT;
 544                 }
 545         }
 546         g_strfreev(strv);
 547
 548         return config;
 549 }
 550
 551 void prefs_gpg_account_set_config(PrefsAccount *account, GPGAccountConfig *config)
 552 {
 553         gchar *confstr = NULL;
 554
 555         switch (config->sign_key) {
 556         case SIGN_KEY_DEFAULT:
 557                 confstr = g_strdup("DEFAULT");
 558                 break;
 559         case SIGN_KEY_BY_FROM:
 560                 confstr = g_strdup("BY_FROM");
 561                 break;
 562         case SIGN_KEY_CUSTOM:
 563                 confstr = g_strdup_printf("CUSTOM;%s", config->sign_key_id);
 564                 break;
 565         default:
 566                 confstr = g_strdup("");
 567                 g_warning("prefs_gpg_account_set_config: bad sign_key val");
 568         }
 569
 570         prefs_account_set_privacy_prefs(account, "gpg", confstr);
 571
 572         g_free(confstr);
 573 }
 574
 575 void prefs_gpg_account_free_config(GPGAccountConfig *config)
 576 {
 577         g_free(config->sign_key_id);
 578         g_free(config);
 579 }
 580
 581 static struct GPGPage gpg_page;
 582 static struct GPGAccountPage gpg_account_page;
 583
 584 void prefs_gpg_enable_agent(gboolean enable)
 585 {
 586         if (enable) {
 587                 if (saved_gpg_agent_info) {
 588                         g_setenv("GPG_AGENT_INFO",
 589                                  saved_gpg_agent_info, TRUE);
 590                         debug_print("set GPG_AGENT_INFO=%s\n",
 591                                 saved_gpg_agent_info);
 592                 } else {
 593                         debug_print("Can't enable gpg agent (no GPG_AGENT_INFO)\n");
 594                 }
 595         } else {
 596                 if (saved_gpg_agent_info) {
 597                         g_unsetenv("GPG_AGENT_INFO");
 598                         debug_print("unset GPG_AGENT_INFO=%s\n",
 599                                 saved_gpg_agent_info);
 600                 } else {
 601                         debug_print("Can't disable gpg agent (no GPG_AGENT_INFO)\n");
 602                 }
 603         }
 604 }
 605
 606 void prefs_gpg_init()
 607 {
 608         static gchar *path[3];
 609         gchar *rcpath;
 610         const gchar *tmp = NULL;
 611
 612         prefs_set_default(param);
 613         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
 614         prefs_read_config(param, "GPG", rcpath, NULL);
 615         g_free(rcpath);
 616
 617         path[0] = _("Plugins");
 618         path[1] = _("GPG");
 619         path[2] = NULL;
 620
 621         gpg_page.page.path = path;
 622         gpg_page.page.create_widget = prefs_gpg_create_widget_func;
 623         gpg_page.page.destroy_widget = prefs_gpg_destroy_widget_func;
 624         gpg_page.page.save_page = prefs_gpg_save_func;
 625         gpg_page.page.weight = 30.0;
 626
 627         prefs_gtk_register_page((PrefsPage *) &gpg_page);
 628
 629         gpg_account_page.page.path = path;
 630         gpg_account_page.page.create_widget = prefs_gpg_account_create_widget_func;
 631         gpg_account_page.page.destroy_widget = prefs_gpg_account_destroy_widget_func;
 632         gpg_account_page.page.save_page = prefs_gpg_account_save_func;
 633         gpg_account_page.page.weight = 30.0;
 634
 635         prefs_account_register_page((PrefsPage *) &gpg_account_page);
 636
 637         tmp = g_getenv("GPG_AGENT_INFO");
 638         if (tmp)
 639                 saved_gpg_agent_info = g_strdup(tmp);
 640
 641         prefs_gpg_enable_agent(prefs_gpg_get_config()->use_gpg_agent);
 642 }
 643
 644 void prefs_gpg_done()
 645 {
 646         prefs_gtk_unregister_page((PrefsPage *) &gpg_page);
 647         prefs_account_unregister_page((PrefsPage *) &gpg_account_page);
 648         prefs_gpg_enable_agent(TRUE);
 649 }
 650
 651 gboolean prefs_gpg_should_skip_encryption_warning(const gchar *systemid)
 652 {
 653         gchar **systems = NULL;
 654         int i = 0;
 655         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 656                 return FALSE;
 657         systems = g_strsplit(prefs_gpg_get_config()->skip_encryption_warning,
 658                                 ",", -1);
 659         while (systems && systems[i]) {
 660                 debug_print(" cmp %s %s\n", systems[i], systemid);
 661                 if (!strcmp(systems[i],systemid)) {
 662                         g_strfreev(systems);
 663                         return TRUE;
 664                 }
 665                 i++;
 666         }
 667         g_strfreev(systems);
 668         return FALSE;
 669 }
 670
 671 void prefs_gpg_add_skip_encryption_warning(const gchar *systemid)
 672 {
 673         gchar *tmp = NULL;
 674         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 675                 prefs_gpg_get_config()->skip_encryption_warning =
 676                         g_strdup_printf("%s,", systemid);
 677         else if (!prefs_gpg_should_skip_encryption_warning(systemid)) {
 678                 tmp = g_strdup_printf("%s%s,",
 679                         prefs_gpg_get_config()->skip_encryption_warning,
 680                         systemid);
 681                 g_free(prefs_gpg_get_config()->skip_encryption_warning);
 682                 prefs_gpg_get_config()->skip_encryption_warning = tmp;
 683         }
 684         prefs_gpg_save_config();
 685 }
 686
 687 void prefs_gpg_remove_skip_encryption_warning(const gchar *systemid)
 688 {
 689         gchar **systems = NULL;
 690         int i = 0;
 691         if (prefs_gpg_get_config()->skip_encryption_warning == NULL)
 692                 return;
 693
 694         if (prefs_gpg_should_skip_encryption_warning(systemid)) {
 695                 systems = g_strsplit(prefs_gpg_get_config()->skip_encryption_warning,
 696                                 ",", -1);
 697                 g_free(prefs_gpg_get_config()->skip_encryption_warning);
 698                 prefs_gpg_get_config()->skip_encryption_warning = NULL;
 699
 700                 while (systems && systems[i]) {
 701                         if (!strcmp(systems[i],systemid)) {
 702                                 i++;
 703                                 continue;
 704                         }
 705                         prefs_gpg_add_skip_encryption_warning(systems[i]);
 706                         i++;
 707                 }
 708
 709                 g_strfreev(systems);
 710         }
 711         prefs_gpg_save_config();
 712 }
 713
 714 gboolean prefs_gpg_auto_check_signatures(void)
 715 {
 716         return prefs_gpg_get_config()->auto_check_signatures;
 717 }