src/inc.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2013 Hiroyuki Yamamoto and 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 "defs.h"
  26
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <gtk/gtk.h>
  30 #include <stdio.h>
  31 #include <unistd.h>
  32 #include <string.h>
  33
  34 #include "main.h"
  35 #include "inc.h"
  36 #include "mainwindow.h"
  37 #include "folderview.h"
  38 #include "summaryview.h"
  39 #include "prefs_common.h"
  40 #include "prefs_account.h"
  41 #include "account.h"
  42 #include "procmsg.h"
  43 #include "socket.h"
  44 #include "ssl.h"
  45 #include "pop.h"
  46 #include "recv.h"
  47 #include "mbox.h"
  48 #include "utils.h"
  49 #include "gtkutils.h"
  50 #include "statusbar.h"
  51 #include "msgcache.h"
  52 #include "manage_window.h"
  53 #include "stock_pixmap.h"
  54 #include "progressdialog.h"
  55 #include "inputdialog.h"
  56 #include "alertpanel.h"
  57 #include "folder.h"
  58 #include "filtering.h"
  59 #include "log.h"
  60 #include "hooks.h"
  61 #include "logwindow.h"
  62
  63 extern SessionStats session_stats;
  64
  65 static GList *inc_dialog_list = NULL;
  66
  67 guint inc_lock_count = 0;
  68
  69 static GdkPixbuf *currentpix;
  70 static GdkPixbuf *errorpix;
  71 static GdkPixbuf *okpix;
  72
  73 #define MESSAGEBUFSIZE  8192
  74
  75 static void inc_update_stats(gint new_msgs);
  76 static void inc_finished                (MainWindow             *mainwin,
  77                                          gboolean                new_messages,
  78                                          gboolean                autocheck);
  79 static gint inc_account_mail_real       (MainWindow             *mainwin,
  80                                          PrefsAccount           *account);
  81
  82 static IncProgressDialog *inc_progress_dialog_create
  83                                         (gboolean                autocheck);
  84 static void inc_progress_dialog_set_list(IncProgressDialog      *inc_dialog);
  85 static void inc_progress_dialog_destroy (IncProgressDialog      *inc_dialog);
  86
  87 static IncSession *inc_session_new      (PrefsAccount           *account);
  88 static void inc_session_destroy         (IncSession             *session);
  89 static gint inc_start                   (IncProgressDialog      *inc_dialog);
  90 static IncState inc_pop3_session_do     (IncSession             *session);
  91
  92 static void inc_progress_dialog_update  (IncProgressDialog      *inc_dialog,
  93                                          IncSession             *inc_session);
  94
  95 static void inc_progress_dialog_set_label
  96                                         (IncProgressDialog      *inc_dialog,
  97                                          IncSession             *inc_session);
  98 static void inc_progress_dialog_set_progress
  99                                         (IncProgressDialog      *inc_dialog,
 100                                          IncSession             *inc_session);
 101
 102 static void inc_progress_dialog_update_periodic
 103                                         (IncProgressDialog      *inc_dialog,
 104                                          IncSession             *inc_session);
 105
 106 static gint inc_recv_data_progressive   (Session        *session,
 107                                          guint           cur_len,
 108                                          guint           total_len,
 109                                          gpointer        data);
 110 static gint inc_recv_data_finished      (Session        *session,
 111                                          guint           len,
 112                                          gpointer        data);
 113 static gint inc_recv_message            (Session        *session,
 114                                          const gchar    *msg,
 115                                          gpointer        data);
 116 static gint inc_drop_message            (Pop3Session    *session,
 117                                          const gchar    *file);
 118
 119 static void inc_put_error               (IncState        istate,
 120                                          Pop3Session    *session);
 121
 122 static void inc_showlog_cb              (GtkWidget      *widget,
 123                                          gpointer        data);
 124 static void inc_cancel_cb               (GtkWidget      *widget,
 125                                          gpointer        data);
 126 static gint inc_dialog_delete_cb        (GtkWidget      *widget,
 127                                          GdkEventAny    *event,
 128                                          gpointer        data);
 129
 130 static gint get_spool                   (FolderItem     *dest,
 131                                          const gchar    *mbox,
 132                                          PrefsAccount   *account);
 133
 134 static gint inc_spool_account(PrefsAccount *account);
 135 static gint inc_all_spool(void);
 136 static void inc_autocheck_timer_set_interval    (guint           interval);
 137 static gint inc_autocheck_func                  (gpointer        data);
 138
 139 static void inc_notify_cmd              (gint new_msgs,
 140                                          gboolean notify);
 141
 142 static void inc_update_stats(gint new_msgs)
 143 {
 144         /* update session statistics */
 145         session_stats.received += new_msgs;
 146 }
 147
 148 /**
 149  * inc_finished:
 150  * @mainwin: Main window.
 151  * @new_messages: TRUE if some messages have been received.
 152  *
 153  * Update the folder view and the summary view after receiving
 154  * messages.  If @new_messages is FALSE, this function avoids unneeded
 155  * updating.
 156  **/
 157 static void inc_finished(MainWindow *mainwin, gboolean new_messages, gboolean autocheck)
 158 {
 159         if (prefs_common.scan_all_after_inc)
 160                 folderview_check_new(NULL);
 161
 162         if (!autocheck && new_messages && prefs_common.open_inbox_on_inc) {
 163                 FolderItem *item = NULL;
 164
 165                 if (cur_account && cur_account->inbox)
 166                         item = folder_find_item_from_identifier(cur_account->inbox);
 167                 if (item == NULL && cur_account && cur_account->folder)
 168                         item = cur_account->folder->inbox;
 169                 if (item == NULL)
 170                         item = folder_get_default_inbox();
 171
 172                 folderview_unselect(mainwin->folderview);
 173                 folderview_select(mainwin->folderview, item);
 174         }
 175 }
 176
 177 void inc_mail(MainWindow *mainwin, gboolean notify)
 178 {
 179         gint new_msgs = 0;
 180         gint account_new_msgs = 0;
 181
 182         if (inc_lock_count) return;
 183
 184         if (prefs_common.work_offline &&
 185             !inc_offline_should_override(TRUE,
 186                 _("Claws Mail needs network access in order "
 187                   "to get mails.")))
 188                 return;
 189
 190         inc_lock();
 191         inc_autocheck_timer_remove();
 192         main_window_lock(mainwin);
 193
 194         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
 195                 /* external incorporating program */
 196                 if (execute_command_line(prefs_common.extinc_cmd, FALSE) < 0) {
 197                         main_window_unlock(mainwin);
 198                         inc_autocheck_timer_set();
 199                         inc_unlock();
 200                         return;
 201                 }
 202         } else {
 203                 account_new_msgs = inc_account_mail_real(mainwin, cur_account);
 204                 if (account_new_msgs > 0)
 205                         new_msgs += account_new_msgs;
 206         }
 207
 208         inc_update_stats(new_msgs);
 209         inc_finished(mainwin, new_msgs > 0, FALSE);
 210         main_window_unlock(mainwin);
 211         inc_notify_cmd(new_msgs, notify);
 212         inc_autocheck_timer_set();
 213         inc_unlock();
 214 }
 215
 216 void inc_pop_before_smtp(PrefsAccount *acc)
 217 {
 218         IncProgressDialog *inc_dialog;
 219         IncSession *session;
 220         MainWindow *mainwin;
 221
 222         mainwin = mainwindow_get_mainwindow();
 223
 224         session = inc_session_new(acc);
 225         if (!session) return;
 226         POP3_SESSION(session->session)->pop_before_smtp = TRUE;
 227
 228         inc_dialog = inc_progress_dialog_create(FALSE);
 229         inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
 230                                                session);
 231         /* FIXME: assumes to attach to first main window */
 232         inc_dialog->mainwin = mainwin;
 233         inc_progress_dialog_set_list(inc_dialog);
 234
 235         if (mainwin) {
 236                 toolbar_main_set_sensitive(mainwin);
 237                 main_window_set_menu_sensitive(mainwin);
 238         }
 239
 240         inc_start(inc_dialog);
 241 }
 242
 243 static gint inc_account_mail_real(MainWindow *mainwin, PrefsAccount *account)
 244 {
 245         IncProgressDialog *inc_dialog;
 246         IncSession *session;
 247
 248         switch (account->protocol) {
 249         case A_IMAP4:
 250         case A_NNTP:
 251                 /* Melvin: bug [14]
 252                  * FIXME: it should return foldeview_check_new() value.
 253                  * TODO: do it when bug [19] is fixed (IMAP folder sets
 254                  * an incorrect new message count)
 255                  */
 256                 folderview_check_new(FOLDER(account->folder));
 257                 return 0;
 258         case A_POP3:
 259         case A_APOP:
 260                 session = inc_session_new(account);
 261                 if (!session) return 0;
 262
 263                 inc_dialog = inc_progress_dialog_create(FALSE);
 264                 inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
 265                                                        session);
 266                 inc_dialog->mainwin = mainwin;
 267                 inc_progress_dialog_set_list(inc_dialog);
 268
 269                 if (mainwin) {
 270                         toolbar_main_set_sensitive(mainwin);
 271                         main_window_set_menu_sensitive(mainwin);
 272                 }
 273
 274                 return inc_start(inc_dialog);
 275
 276         case A_LOCAL:
 277                 return inc_spool_account(account);
 278
 279         default:
 280                 break;
 281         }
 282         return 0;
 283 }
 284
 285 gint inc_account_mail(MainWindow *mainwin, PrefsAccount *account)
 286 {
 287         gint new_msgs;
 288
 289         if (inc_lock_count) return 0;
 290
 291         if (prefs_common.work_offline &&
 292             !inc_offline_should_override(TRUE,
 293                 _("Claws Mail needs network access in order "
 294                   "to get mails.")))
 295                 return 0;
 296
 297         inc_autocheck_timer_remove();
 298         main_window_lock(mainwin);
 299
 300         new_msgs = inc_account_mail_real(mainwin, account);
 301
 302         inc_update_stats(new_msgs);
 303         inc_finished(mainwin, new_msgs > 0, FALSE);
 304         main_window_unlock(mainwin);
 305         inc_autocheck_timer_set();
 306
 307         return new_msgs;
 308 }
 309
 310 void inc_all_account_mail(MainWindow *mainwin, gboolean autocheck,
 311                           gboolean notify)
 312 {
 313         GList *list, *queue_list = NULL;
 314         IncProgressDialog *inc_dialog;
 315         gint new_msgs = 0;
 316         gint account_new_msgs = 0;
 317
 318         if (prefs_common.work_offline &&
 319             !inc_offline_should_override( (autocheck == FALSE),
 320                 _("Claws Mail needs network access in order "
 321                   "to get mails.")))
 322                 return;
 323
 324         if (inc_lock_count) return;
 325
 326         inc_autocheck_timer_remove();
 327         main_window_lock(mainwin);
 328
 329         list = account_get_list();
 330         if (!list) {
 331                 inc_update_stats(new_msgs);
 332                 inc_finished(mainwin, new_msgs > 0, autocheck);
 333                 main_window_unlock(mainwin);
 334                 inc_notify_cmd(new_msgs, notify);
 335                 inc_autocheck_timer_set();
 336                 return;
 337         }
 338
 339         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
 340                 /* external incorporating program */
 341                 if (execute_command_line(prefs_common.extinc_cmd, FALSE) < 0) {
 342                         log_error(LOG_PROTOCOL, _("%s failed\n"), prefs_common.extinc_cmd);
 343
 344                         main_window_unlock(mainwin);
 345                         inc_autocheck_timer_set();
 346                         return;
 347                 }
 348         }
 349
 350         /* check local folders */
 351         account_new_msgs = inc_all_spool();
 352         if (account_new_msgs > 0)
 353                 new_msgs += account_new_msgs;
 354
 355         /* check IMAP4 / News folders */
 356         for (list = account_get_list(); list != NULL; list = list->next) {
 357                 PrefsAccount *account = list->data;
 358                 if ((account->protocol == A_IMAP4 ||
 359                      account->protocol == A_NNTP) && account->recv_at_getall) {
 360                         new_msgs += folderview_check_new(FOLDER(account->folder));
 361                 }
 362         }
 363
 364         /* check POP3 accounts */
 365         for (list = account_get_list(); list != NULL; list = list->next) {
 366                 IncSession *session;
 367                 PrefsAccount *account = list->data;
 368
 369                 if (account->recv_at_getall) {
 370                         session = inc_session_new(account);
 371                         if (session)
 372                                 queue_list = g_list_append(queue_list, session);
 373                 }
 374         }
 375
 376         if (queue_list) {
 377                 inc_dialog = inc_progress_dialog_create(autocheck);
 378                 inc_dialog->queue_list = queue_list;
 379                 inc_dialog->mainwin = mainwin;
 380                 inc_progress_dialog_set_list(inc_dialog);
 381
 382                 toolbar_main_set_sensitive(mainwin);
 383                 main_window_set_menu_sensitive(mainwin);
 384                 new_msgs += inc_start(inc_dialog);
 385         }
 386
 387         inc_update_stats(new_msgs);
 388         inc_finished(mainwin, new_msgs > 0, autocheck);
 389         main_window_unlock(mainwin);
 390         inc_notify_cmd(new_msgs, notify);
 391         inc_autocheck_timer_set();
 392 }
 393
 394 static void inc_progress_dialog_size_allocate_cb(GtkWidget *widget,
 395                                          GtkAllocation *allocation)
 396 {
 397         cm_return_if_fail(allocation != NULL);
 398
 399         prefs_common.receivewin_width = allocation->width;
 400         prefs_common.receivewin_height = allocation->height;
 401 }
 402
 403 static IncProgressDialog *inc_progress_dialog_create(gboolean autocheck)
 404 {
 405         IncProgressDialog *dialog;
 406         ProgressDialog *progress;
 407         static GdkGeometry geometry;
 408
 409         dialog = g_new0(IncProgressDialog, 1);
 410
 411         progress = progress_dialog_create();
 412         gtk_window_set_title(GTK_WINDOW(progress->window),
 413                              _("Retrieving new messages"));
 414         g_signal_connect(G_OBJECT(progress->showlog_btn), "clicked",
 415                          G_CALLBACK(inc_showlog_cb), dialog);
 416         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
 417                          G_CALLBACK(inc_cancel_cb), dialog);
 418         g_signal_connect(G_OBJECT(progress->window), "delete_event",
 419                          G_CALLBACK(inc_dialog_delete_cb), dialog);
 420         g_signal_connect(G_OBJECT(progress->window), "size_allocate",
 421                          G_CALLBACK(inc_progress_dialog_size_allocate_cb), NULL);
 422         /* manage_window_set_transient(GTK_WINDOW(progress->window)); */
 423
 424         progress_dialog_get_fraction(progress);
 425
 426         stock_pixbuf_gdk(progress->treeview, STOCK_PIXMAP_COMPLETE,
 427                          &okpix);
 428         stock_pixbuf_gdk(progress->treeview, STOCK_PIXMAP_CONTINUE,
 429                          &currentpix);
 430         stock_pixbuf_gdk(progress->treeview, STOCK_PIXMAP_ERROR,
 431                          &errorpix);
 432
 433         if (!geometry.min_height) {
 434                 geometry.min_width = 460;
 435                 geometry.min_height = 250;
 436         }
 437
 438         gtk_window_set_geometry_hints(GTK_WINDOW(progress->window), NULL, &geometry,
 439                                       GDK_HINT_MIN_SIZE);
 440         gtk_widget_set_size_request(progress->window, prefs_common.receivewin_width,
 441                                     prefs_common.receivewin_height);
 442
 443         if (prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS ||
 444             (prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL &&
 445              !autocheck)) {
 446                 dialog->show_dialog = TRUE;
 447                 gtk_widget_show_now(progress->window);
 448         }
 449
 450         dialog->dialog = progress;
 451         g_get_current_time(&dialog->progress_tv);
 452         g_get_current_time(&dialog->folder_tv);
 453         dialog->queue_list = NULL;
 454         dialog->cur_row = 0;
 455
 456         inc_dialog_list = g_list_append(inc_dialog_list, dialog);
 457
 458         return dialog;
 459 }
 460
 461 static void inc_progress_dialog_set_list(IncProgressDialog *inc_dialog)
 462 {
 463         GList *list;
 464
 465         for (list = inc_dialog->queue_list; list != NULL; list = list->next) {
 466                 IncSession *session = list->data;
 467                 Pop3Session *pop3_session = POP3_SESSION(session->session);
 468
 469                 session->data = inc_dialog;
 470
 471                 progress_dialog_list_set(inc_dialog->dialog,
 472                                          -1, NULL,
 473                                          pop3_session->ac_prefs->account_name,
 474                                          _("Standby"));
 475         }
 476 }
 477
 478 static void inc_progress_dialog_clear(IncProgressDialog *inc_dialog)
 479 {
 480         progress_dialog_get_fraction(inc_dialog->dialog);
 481         progress_dialog_set_label(inc_dialog->dialog, "");
 482         if (inc_dialog->mainwin)
 483                 main_window_progress_off(inc_dialog->mainwin);
 484 }
 485
 486 static void inc_progress_dialog_destroy(IncProgressDialog *inc_dialog)
 487 {
 488         cm_return_if_fail(inc_dialog != NULL);
 489
 490         inc_dialog_list = g_list_remove(inc_dialog_list, inc_dialog);
 491
 492         if (inc_dialog->mainwin)
 493                 main_window_progress_off(inc_dialog->mainwin);
 494         progress_dialog_destroy(inc_dialog->dialog);
 495
 496         g_free(inc_dialog);
 497 }
 498
 499 static IncSession *inc_session_new(PrefsAccount *account)
 500 {
 501         IncSession *session;
 502
 503         cm_return_val_if_fail(account != NULL, NULL);
 504
 505         if (account->protocol != A_POP3)
 506                 return NULL;
 507         if (!account->recv_server || !account->userid)
 508                 return NULL;
 509
 510         session = g_new0(IncSession, 1);
 511
 512         session->session = pop3_session_new(account);
 513         session->session->data = session;
 514         POP3_SESSION(session->session)->drop_message = inc_drop_message;
 515         session_set_recv_message_notify(session->session,
 516                                         inc_recv_message, session);
 517         session_set_recv_data_progressive_notify(session->session,
 518                                                  inc_recv_data_progressive,
 519                                                  session);
 520         session_set_recv_data_notify(session->session,
 521                                      inc_recv_data_finished, session);
 522
 523         return session;
 524 }
 525
 526 static void inc_session_destroy(IncSession *session)
 527 {
 528         cm_return_if_fail(session != NULL);
 529
 530         session_destroy(session->session);
 531         g_free(session);
 532 }
 533
 534 static gint inc_start(IncProgressDialog *inc_dialog)
 535 {
 536         IncSession *session;
 537         GList *qlist;
 538         Pop3Session *pop3_session;
 539         IncState inc_state;
 540         gint error_num = 0;
 541         gint new_msgs = 0;
 542         gchar *msg;
 543         gchar *fin_msg;
 544         FolderItem *processing, *inbox;
 545         GSList *msglist, *msglist_element;
 546         gboolean cancelled = FALSE;
 547
 548         qlist = inc_dialog->queue_list;
 549         while (qlist != NULL) {
 550                 GList *next = qlist->next;
 551
 552                 session = qlist->data;
 553                 pop3_session = POP3_SESSION(session->session);
 554                 pop3_session->user = g_strdup(pop3_session->ac_prefs->userid);
 555                 if (pop3_session->ac_prefs->passwd)
 556                         pop3_session->pass =
 557                                 g_strdup(pop3_session->ac_prefs->passwd);
 558                 else {
 559                         gchar *pass;
 560
 561                         if (inc_dialog->show_dialog)
 562                                 manage_window_focus_in
 563                                         (inc_dialog->dialog->window,
 564                                          NULL, NULL);
 565
 566                         pass = input_dialog_query_password_keep
 567                                 (pop3_session->ac_prefs->recv_server,
 568                                  pop3_session->user,
 569                                  &(pop3_session->ac_prefs->session_passwd));
 570
 571                         if (inc_dialog->show_dialog)
 572                                 manage_window_focus_out
 573                                         (inc_dialog->dialog->window,
 574                                          NULL, NULL);
 575
 576                         if (pass) {
 577                                 pop3_session->pass = pass;
 578                         }
 579                 }
 580
 581                 qlist = next;
 582         }
 583
 584 #define SET_PIXMAP_AND_TEXT(pix, str)                                      \
 585 {                                                                          \
 586         progress_dialog_list_set(inc_dialog->dialog,                       \
 587                                  inc_dialog->cur_row,                      \
 588                                  pix,                                      \
 589                                  NULL,                                     \
 590                                  str);                                     \
 591 }
 592
 593         for (; inc_dialog->queue_list != NULL && !cancelled; inc_dialog->cur_row++) {
 594                 session = inc_dialog->queue_list->data;
 595                 pop3_session = POP3_SESSION(session->session);
 596                 GSList *filtered, *unfiltered;
 597
 598                 if (pop3_session->pass == NULL) {
 599                         SET_PIXMAP_AND_TEXT(okpix, _("Cancelled"));
 600                         inc_session_destroy(session);
 601                         inc_dialog->queue_list =
 602                                 g_list_remove(inc_dialog->queue_list, session);
 603                         continue;
 604                 }
 605
 606                 inc_progress_dialog_clear(inc_dialog);
 607                 progress_dialog_scroll_to_row(inc_dialog->dialog,
 608                                               inc_dialog->cur_row);
 609
 610                 SET_PIXMAP_AND_TEXT(currentpix, _("Retrieving"));
 611
 612                 /* begin POP3 session */
 613                 inc_state = inc_pop3_session_do(session);
 614
 615                 switch (inc_state) {
 616                 case INC_SUCCESS:
 617                         if (pop3_session->cur_total_num > 0)
 618                                 msg = g_strdup_printf(
 619                                         ngettext("Done (%d message (%s) received)",
 620                                                  "Done (%d messages (%s) received)",
 621                                          pop3_session->cur_total_num),
 622                                          pop3_session->cur_total_num,
 623                                          to_human_readable((goffset)pop3_session->cur_total_recv_bytes));
 624                         else
 625                                 msg = g_strdup_printf(_("Done (no new messages)"));
 626                         SET_PIXMAP_AND_TEXT(okpix, msg);
 627                         g_free(msg);
 628                         break;
 629                 case INC_CONNECT_ERROR:
 630                         SET_PIXMAP_AND_TEXT(errorpix, _("Connection failed"));
 631                         break;
 632                 case INC_AUTH_FAILED:
 633                         SET_PIXMAP_AND_TEXT(errorpix, _("Auth failed"));
 634                         if (pop3_session->ac_prefs->session_passwd) {
 635                                 g_free(pop3_session->ac_prefs->session_passwd);
 636                                 pop3_session->ac_prefs->session_passwd = NULL;
 637                         }
 638                         break;
 639                 case INC_LOCKED:
 640                         SET_PIXMAP_AND_TEXT(errorpix, _("Locked"));
 641                         break;
 642                 case INC_ERROR:
 643                 case INC_NO_SPACE:
 644                 case INC_IO_ERROR:
 645                 case INC_SOCKET_ERROR:
 646                 case INC_EOF:
 647                         SET_PIXMAP_AND_TEXT(errorpix, _("Error"));
 648                         break;
 649                 case INC_TIMEOUT:
 650                         SET_PIXMAP_AND_TEXT(errorpix, _("Timeout"));
 651                         break;
 652                 case INC_CANCEL:
 653                         SET_PIXMAP_AND_TEXT(okpix, _("Cancelled"));
 654                         if (!inc_dialog->show_dialog)
 655                                 cancelled = TRUE;
 656                         break;
 657                 default:
 658                         break;
 659                 }
 660
 661                 if (pop3_session->error_val == PS_AUTHFAIL) {
 662                         if(!prefs_common.no_recv_err_panel) {
 663                                 if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
 664                                     ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window))
 665                                         manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
 666                         }
 667                 }
 668
 669                 /* CLAWS: perform filtering actions on dropped message */
 670                 /* CLAWS: get default inbox (perhaps per account) */
 671                 if (pop3_session->ac_prefs->inbox) {
 672                         /* CLAWS: get destination folder / mailbox */
 673                         inbox = folder_find_item_from_identifier(pop3_session->ac_prefs->inbox);
 674                         if (!inbox)
 675                                 inbox = folder_get_default_inbox();
 676                 } else
 677                         inbox = folder_get_default_inbox();
 678
 679                 /* get list of messages in processing */
 680                 processing = folder_get_default_processing();
 681                 folder_item_scan(processing);
 682                 msglist = folder_item_get_msg_list(processing);
 683
 684                 /* process messages */
 685                 folder_item_update_freeze();
 686
 687                 procmsg_msglist_filter(msglist, pop3_session->ac_prefs,
 688                                 &filtered, &unfiltered,
 689                                 pop3_session->ac_prefs->filter_on_recv);
 690
 691                 filtering_move_and_copy_msgs(msglist);
 692                 if (unfiltered != NULL)
 693                         folder_item_move_msgs(inbox, unfiltered);
 694
 695                 for(msglist_element = msglist; msglist_element != NULL;
 696                     msglist_element = msglist_element->next) {
 697                         MsgInfo *msginfo = (MsgInfo *)msglist_element->data;
 698                         procmsg_msginfo_free(msginfo);
 699                 }
 700                 folder_item_update_thaw();
 701
 702                 g_slist_free(msglist);
 703                 g_slist_free(filtered);
 704                 g_slist_free(unfiltered);
 705
 706                 statusbar_pop_all();
 707
 708                 new_msgs += pop3_session->cur_total_num;
 709
 710                 pop3_write_uidl_list(pop3_session);
 711
 712                 if (inc_state != INC_SUCCESS && inc_state != INC_CANCEL) {
 713                         error_num++;
 714                         if (inc_dialog->show_dialog)
 715                                 manage_window_focus_in
 716                                         (inc_dialog->dialog->window,
 717                                          NULL, NULL);
 718                         inc_put_error(inc_state, pop3_session);
 719                         if (inc_dialog->show_dialog)
 720                                 manage_window_focus_out
 721                                         (inc_dialog->dialog->window,
 722                                          NULL, NULL);
 723                         if (inc_state == INC_NO_SPACE ||
 724                             inc_state == INC_IO_ERROR)
 725                                 break;
 726                 }
 727                 folder_item_free_cache(processing, TRUE);
 728
 729                 inc_session_destroy(session);
 730                 inc_dialog->queue_list =
 731                         g_list_remove(inc_dialog->queue_list, session);
 732         }
 733
 734 #undef SET_PIXMAP_AND_TEXT
 735
 736         if (new_msgs > 0)
 737                 fin_msg = g_strdup_printf(ngettext("Finished (%d new message)",
 738                                                    "Finished (%d new messages)",
 739                                                    new_msgs), new_msgs);
 740         else
 741                 fin_msg = g_strdup_printf(_("Finished (no new messages)"));
 742
 743         progress_dialog_set_label(inc_dialog->dialog, fin_msg);
 744
 745         while (inc_dialog->queue_list != NULL) {
 746                 session = inc_dialog->queue_list->data;
 747                 inc_session_destroy(session);
 748                 inc_dialog->queue_list =
 749                         g_list_remove(inc_dialog->queue_list, session);
 750         }
 751
 752         if (prefs_common.close_recv_dialog || !inc_dialog->show_dialog)
 753                 inc_progress_dialog_destroy(inc_dialog);
 754         else {
 755                 gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window),
 756                                      fin_msg);
 757                 gtk_button_set_label(GTK_BUTTON(inc_dialog->dialog->cancel_btn),
 758                                      GTK_STOCK_CLOSE);
 759         }
 760
 761         g_free(fin_msg);
 762
 763         return new_msgs;
 764 }
 765
 766 static IncState inc_pop3_session_do(IncSession *session)
 767 {
 768         Pop3Session *pop3_session = POP3_SESSION(session->session);
 769         IncProgressDialog *inc_dialog = (IncProgressDialog *)session->data;
 770         gchar *server;
 771         gchar *account_name;
 772         gushort port;
 773         gchar *buf;
 774
 775         debug_print("getting new messages of account %s...\n",
 776                     pop3_session->ac_prefs->account_name);
 777
 778         pop3_session->ac_prefs->last_pop_login_time = time(NULL);
 779
 780         buf = g_strdup_printf(_("%s: Retrieving new messages"),
 781                               pop3_session->ac_prefs->recv_server);
 782         gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window), buf);
 783         g_free(buf);
 784
 785         server = pop3_session->ac_prefs->recv_server;
 786         account_name = pop3_session->ac_prefs->account_name;
 787 #ifdef USE_GNUTLS
 788         port = pop3_session->ac_prefs->set_popport ?
 789                 pop3_session->ac_prefs->popport :
 790                 pop3_session->ac_prefs->ssl_pop == SSL_TUNNEL ? 995 : 110;
 791         SESSION(pop3_session)->ssl_type = pop3_session->ac_prefs->ssl_pop;
 792         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE)
 793                 SESSION(pop3_session)->nonblocking =
 794                         pop3_session->ac_prefs->use_nonblocking_ssl;
 795 #else
 796         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE) {
 797                 if (alertpanel_full(_("Insecure connection"),
 798                         _("This connection is configured to be secured "
 799                           "using SSL, but SSL is not available in this "
 800                           "build of Claws Mail. \n\n"
 801                           "Do you want to continue connecting to this "
 802                           "server? The communication would not be "
 803                           "secure."),
 804                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 805                           NULL, FALSE, NULL, ALERT_WARNING,
 806                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 807                         return INC_CANCEL;
 808         }
 809         port = pop3_session->ac_prefs->set_popport ?
 810                 pop3_session->ac_prefs->popport : 110;
 811 #endif
 812
 813         buf = g_strdup_printf(_("Account '%s': Connecting to POP3 server: %s:%d..."),
 814                                 account_name, server, port);
 815         statuswindow_print_all("%s", buf);
 816         log_message(LOG_PROTOCOL, "%s\n", buf);
 817
 818         progress_dialog_set_label(inc_dialog->dialog, buf);
 819         GTK_EVENTS_FLUSH();
 820         g_free(buf);
 821
 822         session_set_timeout(SESSION(pop3_session),
 823                             prefs_common.io_timeout_secs * 1000);
 824
 825         if (session_connect(SESSION(pop3_session), server, port) < 0) {
 826                 if(!prefs_common.no_recv_err_panel) {
 827                         if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
 828                             ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window)) {
 829                                 manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
 830                         }
 831                         alertpanel_error(_("Can't connect to POP3 server: %s:%d"),
 832                                          server, port);
 833                         manage_window_focus_out(inc_dialog->dialog->window, NULL, NULL);
 834                 } else {
 835                         log_error(LOG_PROTOCOL, _("Can't connect to POP3 server: %s:%d\n"),
 836                             server, port);
 837                 }
 838                 session->inc_state = INC_CONNECT_ERROR;
 839                 statuswindow_pop_all();
 840                 return INC_CONNECT_ERROR;
 841         }
 842
 843         while (session_is_running(SESSION(pop3_session)) &&
 844                session->inc_state != INC_CANCEL)
 845                 gtk_main_iteration();
 846
 847         if (session->inc_state == INC_SUCCESS) {
 848                 switch (pop3_session->error_val) {
 849                 case PS_SUCCESS:
 850                         switch (SESSION(pop3_session)->state) {
 851                         case SESSION_ERROR:
 852                                 if (pop3_session->state == POP3_READY)
 853                                         session->inc_state = INC_CONNECT_ERROR;
 854                                 else
 855                                         session->inc_state = INC_ERROR;
 856                                 break;
 857                         case SESSION_EOF:
 858                                 session->inc_state = INC_EOF;
 859                                 break;
 860                         case SESSION_TIMEOUT:
 861                                 session->inc_state = INC_TIMEOUT;
 862                                 break;
 863                         default:
 864                                 session->inc_state = INC_SUCCESS;
 865                                 break;
 866                         }
 867                         break;
 868                 case PS_AUTHFAIL:
 869                         session->inc_state = INC_AUTH_FAILED;
 870                         break;
 871                 case PS_IOERR:
 872                         session->inc_state = INC_IO_ERROR;
 873                         break;
 874                 case PS_SOCKET:
 875                         session->inc_state = INC_SOCKET_ERROR;
 876                         break;
 877                 case PS_LOCKBUSY:
 878                         session->inc_state = INC_LOCKED;
 879                         break;
 880                 default:
 881                         session->inc_state = INC_ERROR;
 882                         break;
 883                 }
 884         }
 885
 886         session_disconnect(SESSION(pop3_session));
 887         statusbar_pop_all();
 888
 889         return session->inc_state;
 890 }
 891
 892 static void inc_progress_dialog_update(IncProgressDialog *inc_dialog,
 893                                        IncSession *inc_session)
 894 {
 895         inc_progress_dialog_set_label(inc_dialog, inc_session);
 896         inc_progress_dialog_set_progress(inc_dialog, inc_session);
 897 }
 898
 899 static void inc_progress_dialog_set_label(IncProgressDialog *inc_dialog,
 900                                           IncSession *inc_session)
 901 {
 902         ProgressDialog *dialog = inc_dialog->dialog;
 903         Pop3Session *session;
 904
 905         cm_return_if_fail(inc_session != NULL);
 906
 907         session = POP3_SESSION(inc_session->session);
 908
 909         switch (session->state) {
 910         case POP3_GREETING:
 911                 break;
 912         case POP3_GETAUTH_USER:
 913         case POP3_GETAUTH_PASS:
 914         case POP3_GETAUTH_APOP:
 915                 progress_dialog_set_label(dialog, _("Authenticating..."));
 916                 statuswindow_pop_all();
 917                 statusbar_print_all(_("Retrieving messages from %s (%s)..."),
 918                                     SESSION(session)->server,
 919                                     session->ac_prefs->account_name);
 920                 break;
 921         case POP3_GETRANGE_STAT:
 922                 progress_dialog_set_label
 923                         (dialog, _("Getting the number of new messages (STAT)..."));
 924                 break;
 925         case POP3_GETRANGE_LAST:
 926                 progress_dialog_set_label
 927                         (dialog, _("Getting the number of new messages (LAST)..."));
 928                 break;
 929         case POP3_GETRANGE_UIDL:
 930                 progress_dialog_set_label
 931                         (dialog, _("Getting the number of new messages (UIDL)..."));
 932                 break;
 933         case POP3_GETSIZE_LIST:
 934                 progress_dialog_set_label
 935                         (dialog, _("Getting the size of messages (LIST)..."));
 936                 break;
 937         case POP3_RETR:
 938         case POP3_RETR_RECV:
 939         case POP3_DELETE:
 940                 break;
 941         case POP3_LOGOUT:
 942                 progress_dialog_set_label(dialog, _("Quitting"));
 943                 break;
 944         default:
 945                 break;
 946         }
 947 }
 948
 949 static void inc_progress_dialog_set_progress(IncProgressDialog *inc_dialog,
 950                                              IncSession *inc_session)
 951 {
 952         gchar buf[MESSAGEBUFSIZE];
 953         Pop3Session *pop3_session = POP3_SESSION(inc_session->session);
 954         gchar *total_size_str;
 955         gint cur_total;
 956         gint total;
 957
 958         if (!pop3_session->new_msg_exist) return;
 959
 960         cur_total = inc_session->cur_total_bytes;
 961         total = pop3_session->total_bytes;
 962         if (pop3_session->state == POP3_RETR ||
 963             pop3_session->state == POP3_RETR_RECV ||
 964             pop3_session->state == POP3_DELETE) {
 965                 Xstrdup_a(total_size_str, to_human_readable((goffset)total), return);
 966                 g_snprintf(buf, sizeof(buf),
 967                            _("Retrieving message (%d / %d) (%s / %s)"),
 968                            pop3_session->cur_msg, pop3_session->count,
 969                            to_human_readable((goffset)cur_total), total_size_str);
 970                 progress_dialog_set_label(inc_dialog->dialog, buf);
 971         }
 972
 973         progress_dialog_set_fraction
 974                 (inc_dialog->dialog, (total == 0) ? 0: (gfloat)cur_total / (gfloat)total);
 975
 976         statusbar_progress_all(pop3_session->cur_msg, pop3_session->count, 1);
 977
 978         if (pop3_session->cur_total_num > 0) {
 979                 g_snprintf(buf, sizeof(buf),
 980                            ngettext("Retrieving (%d message (%s) received)",
 981                                     "Retrieving (%d messages (%s) received)",
 982                                     pop3_session->cur_total_num),
 983                            pop3_session->cur_total_num,
 984                            to_human_readable
 985                            ((goffset)pop3_session->cur_total_recv_bytes));
 986                 progress_dialog_list_set_status(inc_dialog->dialog,
 987                                                 inc_dialog->cur_row,
 988                                                 buf);
 989         }
 990 }
 991
 992 static void inc_progress_dialog_update_periodic(IncProgressDialog *inc_dialog,
 993                                                 IncSession *inc_session)
 994 {
 995         GTimeVal tv_cur;
 996         GTimeVal tv_result;
 997         gint msec;
 998
 999         g_get_current_time(&tv_cur);
1000
1001         tv_result.tv_sec = tv_cur.tv_sec - inc_dialog->progress_tv.tv_sec;
1002         tv_result.tv_usec = tv_cur.tv_usec - inc_dialog->progress_tv.tv_usec;
1003         if (tv_result.tv_usec < 0) {
1004                 tv_result.tv_sec--;
1005                 tv_result.tv_usec += G_USEC_PER_SEC;
1006         }
1007
1008         msec = tv_result.tv_sec * 1000 + tv_result.tv_usec / 1000;
1009         if (msec > PROGRESS_UPDATE_INTERVAL) {
1010                 inc_progress_dialog_update(inc_dialog, inc_session);
1011                 inc_dialog->progress_tv.tv_sec = tv_cur.tv_sec;
1012                 inc_dialog->progress_tv.tv_usec = tv_cur.tv_usec;
1013         }
1014 }
1015
1016 static gint inc_recv_data_progressive(Session *session, guint cur_len,
1017                                       guint total_len, gpointer data)
1018 {
1019         IncSession *inc_session = (IncSession *)data;
1020         Pop3Session *pop3_session = POP3_SESSION(session);
1021         IncProgressDialog *inc_dialog;
1022         gint cur_total;
1023
1024         cm_return_val_if_fail(inc_session != NULL, -1);
1025
1026         if (pop3_session->state != POP3_RETR &&
1027             pop3_session->state != POP3_RETR_RECV &&
1028             pop3_session->state != POP3_DELETE &&
1029             pop3_session->state != POP3_LOGOUT) return 0;
1030
1031         if (!pop3_session->new_msg_exist) return 0;
1032
1033         cur_total = pop3_session->cur_total_bytes + cur_len;
1034         if (cur_total > pop3_session->total_bytes)
1035                 cur_total = pop3_session->total_bytes;
1036         inc_session->cur_total_bytes = cur_total;
1037
1038         inc_dialog = (IncProgressDialog *)inc_session->data;
1039         inc_progress_dialog_update_periodic(inc_dialog, inc_session);
1040
1041         return 0;
1042 }
1043
1044 static gint inc_recv_data_finished(Session *session, guint len, gpointer data)
1045 {
1046         IncSession *inc_session = (IncSession *)data;
1047         IncProgressDialog *inc_dialog;
1048
1049         cm_return_val_if_fail(inc_session != NULL, -1);
1050
1051         inc_dialog = (IncProgressDialog *)inc_session->data;
1052
1053         inc_recv_data_progressive(session, 0, 0, inc_session);
1054
1055         if (POP3_SESSION(session)->state == POP3_LOGOUT) {
1056                 inc_progress_dialog_update(inc_dialog, inc_session);
1057         }
1058
1059         return 0;
1060 }
1061
1062 static gint inc_recv_message(Session *session, const gchar *msg, gpointer data)
1063 {
1064         IncSession *inc_session = (IncSession *)data;
1065         IncProgressDialog *inc_dialog;
1066
1067         cm_return_val_if_fail(inc_session != NULL, -1);
1068
1069         inc_dialog = (IncProgressDialog *)inc_session->data;
1070
1071         switch (POP3_SESSION(session)->state) {
1072         case POP3_GETAUTH_USER:
1073         case POP3_GETAUTH_PASS:
1074         case POP3_GETAUTH_APOP:
1075         case POP3_GETRANGE_STAT:
1076         case POP3_GETRANGE_LAST:
1077         case POP3_GETRANGE_UIDL:
1078         case POP3_GETSIZE_LIST:
1079                 inc_progress_dialog_update(inc_dialog, inc_session);
1080                 break;
1081         case POP3_RETR:
1082                 inc_recv_data_progressive(session, 0, 0, inc_session);
1083                 break;
1084         case POP3_LOGOUT:
1085                 inc_progress_dialog_update(inc_dialog, inc_session);
1086                 break;
1087         default:
1088                 break;
1089         }
1090
1091         return 0;
1092 }
1093
1094 static gint inc_drop_message(Pop3Session *session, const gchar *file)
1095 {
1096         FolderItem *inbox;
1097         FolderItem *dropfolder;
1098         IncSession *inc_session = (IncSession *)(SESSION(session)->data);
1099         gint msgnum;
1100
1101         cm_return_val_if_fail(inc_session != NULL, -1);
1102
1103         if (session->ac_prefs->inbox) {
1104                 inbox = folder_find_item_from_identifier
1105                         (session->ac_prefs->inbox);
1106                 if (!inbox)
1107                         inbox = folder_get_default_inbox();
1108         } else
1109                 inbox = folder_get_default_inbox();
1110         if (!inbox) {
1111                 claws_unlink(file);
1112                 return -1;
1113         }
1114
1115         /* CLAWS: claws uses a global .processing folder for the filtering. */
1116         dropfolder = folder_get_default_processing();
1117
1118         /* add msg file to drop folder */
1119         if ((msgnum = folder_item_add_msg(
1120                         dropfolder, file, NULL, TRUE)) < 0) {
1121                 claws_unlink(file);
1122                 return -1;
1123         }
1124
1125         return 0;
1126 }
1127
1128 static void inc_put_error(IncState istate, Pop3Session *session)
1129 {
1130         gchar *log_msg = NULL;
1131         gchar *err_msg = NULL;
1132         gboolean fatal_error = FALSE;
1133
1134         switch (istate) {
1135         case INC_CONNECT_ERROR:
1136                 fatal_error = TRUE;
1137                 if (prefs_common.no_recv_err_panel)
1138                         break;
1139                 err_msg = g_strdup_printf(_("Connection to %s:%d failed."),
1140                                           SESSION(session)->server,
1141                                           SESSION(session)->port);
1142                 break;
1143         case INC_ERROR:
1144                 log_msg = _("Error occurred while processing mail.");
1145                 fatal_error = TRUE;
1146                 if (prefs_common.no_recv_err_panel)
1147                         break;
1148                 if (session->error_msg)
1149                         err_msg = g_strdup_printf
1150                                 (_("Error occurred while processing mail:\n%s"),
1151                                  session->error_msg);
1152                 else
1153                         err_msg = g_strdup(log_msg);
1154                 break;
1155         case INC_NO_SPACE:
1156                 log_msg = _("No disk space left.");
1157                 err_msg = g_strdup(log_msg);
1158                 fatal_error = TRUE;
1159                 break;
1160         case INC_IO_ERROR:
1161                 log_msg = _("Can't write file.");
1162                 err_msg = g_strdup(log_msg);
1163                 fatal_error = TRUE;
1164                 break;
1165         case INC_SOCKET_ERROR:
1166                 log_msg = _("Socket error.");
1167                 if (prefs_common.no_recv_err_panel)
1168                         break;
1169                 err_msg = g_strdup_printf(_("Socket error on connection to %s:%d."),
1170                                           SESSION(session)->server,
1171                                           SESSION(session)->port);
1172                 break;
1173         case INC_EOF:
1174                 log_msg = _("Connection closed by the remote host.");
1175                 if (prefs_common.no_recv_err_panel)
1176                         break;
1177                 err_msg = g_strdup_printf(_("Connection to %s:%d closed by the remote host."),
1178                                           SESSION(session)->server,
1179                                           SESSION(session)->port);
1180                 break;
1181         case INC_LOCKED:
1182                 log_msg = _("Mailbox is locked.");
1183                 if (prefs_common.no_recv_err_panel)
1184                         break;
1185                 if (session->error_msg)
1186                         err_msg = g_strdup_printf(_("Mailbox is locked:\n%s"),
1187                                                   session->error_msg);
1188                 else
1189                         err_msg = g_strdup(log_msg);
1190                 break;
1191         case INC_AUTH_FAILED:
1192                 log_msg = _("Authentication failed.");
1193                 fatal_error = TRUE;
1194                 if (prefs_common.no_recv_err_panel)
1195                         break;
1196                 if (session->error_msg)
1197                         err_msg = g_strdup_printf
1198                                 (_("Authentication failed:\n%s"), session->error_msg);
1199                 else
1200                         err_msg = g_strdup(log_msg);
1201                 break;
1202         case INC_TIMEOUT:
1203                 log_msg = _("Session timed out. You may be able to "
1204                             "recover by increasing the timeout value in "
1205                             "Preferences/Other/Miscellaneous.");
1206                 if (prefs_common.no_recv_err_panel)
1207                         break;
1208                 err_msg = g_strdup_printf(_("Connection to %s:%d timed out."),
1209                                           SESSION(session)->server,
1210                                           SESSION(session)->port);
1211                 break;
1212         default:
1213                 break;
1214         }
1215
1216         if (log_msg) {
1217                 if (fatal_error)
1218                         log_error(LOG_PROTOCOL, "%s\n", log_msg);
1219                 else
1220                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
1221         }
1222         if (prefs_common.no_recv_err_panel && fatal_error)
1223                 mainwindow_show_error();
1224
1225         if (err_msg) {
1226                 alertpanel_error_log("%s", err_msg);
1227                 g_free(err_msg);
1228         }
1229 }
1230
1231 static void inc_cancel(IncProgressDialog *dialog)
1232 {
1233         IncSession *session;
1234
1235         cm_return_if_fail(dialog != NULL);
1236
1237         if (dialog->queue_list == NULL) {
1238                 inc_progress_dialog_destroy(dialog);
1239                 return;
1240         }
1241
1242         session = dialog->queue_list->data;
1243
1244         session->inc_state = INC_CANCEL;
1245
1246         log_message(LOG_PROTOCOL, _("Incorporation cancelled\n"));
1247 }
1248
1249 gboolean inc_is_active(void)
1250 {
1251         return (inc_dialog_list != NULL);
1252 }
1253
1254 void inc_cancel_all(void)
1255 {
1256         GList *cur;
1257
1258         for (cur = inc_dialog_list; cur != NULL; cur = cur->next)
1259                 inc_cancel((IncProgressDialog *)cur->data);
1260 }
1261
1262 static void inc_showlog_cb(GtkWidget *widget, gpointer data)
1263 {
1264         MainWindow *mainwin = mainwindow_get_mainwindow();
1265
1266         log_window_show(mainwin->logwin);
1267 }
1268
1269 static void inc_cancel_cb(GtkWidget *widget, gpointer data)
1270 {
1271         inc_cancel((IncProgressDialog *)data);
1272 }
1273
1274 static gint inc_dialog_delete_cb(GtkWidget *widget, GdkEventAny *event,
1275                                  gpointer data)
1276 {
1277         IncProgressDialog *dialog = (IncProgressDialog *)data;
1278
1279         if (dialog->queue_list == NULL)
1280                 inc_progress_dialog_destroy(dialog);
1281
1282         return TRUE;
1283 }
1284
1285 static gint inc_spool_account(PrefsAccount *account)
1286 {
1287         FolderItem *inbox;
1288         gchar *mbox;
1289         gint result;
1290
1291         if (account->local_inbox) {
1292                 inbox = folder_find_item_from_identifier(account->local_inbox);
1293                 if (!inbox)
1294                         inbox = folder_get_default_inbox();
1295         } else
1296                 inbox = folder_get_default_inbox();
1297
1298         if (account->local_mbox) {
1299                 if (is_file_exist(account->local_mbox))
1300                         mbox = g_strdup(account->local_mbox);
1301                 else if (is_dir_exist(account->local_mbox))
1302                         mbox = g_strconcat(account->local_mbox, G_DIR_SEPARATOR_S,
1303                                            g_get_user_name(), NULL);
1304                 else {
1305                         debug_print("%s: local mailbox not found.\n",
1306                                     account->local_mbox);
1307                         return -1;
1308                 }
1309         } else {
1310                 debug_print("local mailbox not set in account info.\n");
1311                 return -1;
1312         }
1313
1314         result = get_spool(inbox, mbox, account);
1315         g_free(mbox);
1316
1317         statusbar_pop_all();
1318
1319         return result;
1320 }
1321
1322 static gint inc_all_spool(void)
1323 {
1324         GList *list = NULL;
1325         gint new_msgs = 0;
1326         gint account_new_msgs = 0;
1327
1328         list = account_get_list();
1329         if (!list) return 0;
1330
1331         for (; list != NULL; list = list->next) {
1332                 PrefsAccount *account = list->data;
1333
1334                 if ((account->protocol == A_LOCAL) &&
1335                     (account->recv_at_getall)) {
1336                         account_new_msgs = inc_spool_account(account);
1337                         if (account_new_msgs > 0)
1338                                 new_msgs += account_new_msgs;
1339                 }
1340         }
1341
1342         return new_msgs;
1343 }
1344
1345 static gint get_spool(FolderItem *dest, const gchar *mbox, PrefsAccount *account)
1346 {
1347         gint msgs, size;
1348         gint lockfd;
1349         gchar tmp_mbox[MAXPATHLEN + 1];
1350
1351         cm_return_val_if_fail(dest != NULL, -1);
1352         cm_return_val_if_fail(mbox != NULL, -1);
1353         cm_return_val_if_fail(account != NULL, -1);
1354
1355         if (!is_file_exist(mbox) || (size = get_file_size(mbox)) == 0) {
1356                 debug_print("%s: no messages in local mailbox.\n", mbox);
1357                 return 0;
1358         } else if (size < 0)
1359                 return -1;
1360
1361         if ((lockfd = lock_mbox(mbox, LOCK_FLOCK)) < 0)
1362                 return -1;
1363
1364         g_snprintf(tmp_mbox, sizeof(tmp_mbox), "%s%ctmpmbox.%p",
1365                    get_tmp_dir(), G_DIR_SEPARATOR, mbox);
1366
1367         if (copy_mbox(lockfd, tmp_mbox) < 0) {
1368                 unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1369                 return -1;
1370         }
1371
1372         debug_print("Getting new messages from %s into %s...\n",
1373                     mbox, dest->path);
1374
1375         msgs = proc_mbox(dest, tmp_mbox, account->filter_on_recv, account);
1376
1377         claws_unlink(tmp_mbox);
1378         if (msgs >= 0) empty_mbox(mbox);
1379         unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1380
1381         return msgs;
1382 }
1383
1384 void inc_lock_real(void)
1385 {
1386         inc_lock_count++;
1387 }
1388
1389 void inc_unlock_real(void)
1390 {
1391         if (inc_lock_count > 0)
1392                 inc_lock_count--;
1393 }
1394
1395 static guint autocheck_timer = 0;
1396 static gpointer autocheck_data = NULL;
1397
1398 static void inc_notify_cmd(gint new_msgs, gboolean notify)
1399 {
1400         gchar *buf, *numpos, *ret_str;
1401         gssize by_read = 0, by_written = 0;
1402
1403         if (!(new_msgs && notify && prefs_common.newmail_notify_cmd &&
1404             *prefs_common.newmail_notify_cmd))
1405                      return;
1406
1407         buf = g_strdup(prefs_common.newmail_notify_cmd);
1408         if ((numpos = strstr(buf, "%d")) != NULL) {
1409                 gchar *buf2;
1410
1411                 *numpos = '\0';
1412                 buf2 = g_strdup_printf("%s%d%s", buf, new_msgs, numpos + 2);
1413                 g_free(buf);
1414                 buf = buf2;
1415         }
1416
1417         ret_str = g_locale_from_utf8(buf, strlen(buf), &by_read, &by_written,
1418                                      NULL);
1419         if (ret_str && by_written) {
1420                 g_free(buf);
1421                 buf = ret_str;
1422         }
1423         debug_print("executing new mail notification command: %s\n", buf);
1424         execute_command_line(buf, TRUE);
1425
1426         g_free(buf);
1427 }
1428
1429 void inc_autocheck_timer_init(MainWindow *mainwin)
1430 {
1431         autocheck_data = mainwin;
1432         inc_autocheck_timer_set();
1433 }
1434
1435 static void inc_autocheck_timer_set_interval(guint interval)
1436 {
1437         inc_autocheck_timer_remove();
1438         /* last test is to avoid re-enabling auto_check after modifying
1439            the common preferences */
1440         if (prefs_common.autochk_newmail && autocheck_data
1441             && prefs_common.work_offline == FALSE) {
1442 #if GLIB_CHECK_VERSION(2,14,0)
1443                 if (interval % 1000 == 0)
1444                         autocheck_timer =
1445                                 g_timeout_add_seconds(interval/1000, inc_autocheck_func, autocheck_data);
1446                 else
1447 #endif
1448                 autocheck_timer = g_timeout_add
1449                         (interval, inc_autocheck_func, autocheck_data);
1450                 debug_print("added timer = %d\n", autocheck_timer);
1451         }
1452 }
1453
1454 void inc_autocheck_timer_set(void)
1455 {
1456         inc_autocheck_timer_set_interval(prefs_common.autochk_itv * 60000);
1457 }
1458
1459 void inc_autocheck_timer_remove(void)
1460 {
1461         if (autocheck_timer) {
1462                 debug_print("removed timer = %d\n", autocheck_timer);
1463                 g_source_remove(autocheck_timer);
1464                 autocheck_timer = 0;
1465         }
1466 }
1467
1468 static gint inc_autocheck_func(gpointer data)
1469 {
1470         MainWindow *mainwin = (MainWindow *)data;
1471
1472         if (inc_lock_count) {
1473                 debug_print("autocheck is locked.\n");
1474                 inc_autocheck_timer_set_interval(1000);
1475                 return FALSE;
1476         }
1477
1478         inc_all_account_mail(mainwin, TRUE, prefs_common.newmail_notify_auto);
1479
1480         return FALSE;
1481 }
1482
1483 gboolean inc_offline_should_override(gboolean force_ask, const gchar *msg)
1484 {
1485         static time_t overridden_yes = 0;
1486         static time_t overridden_no  = 0;
1487         int length = 10; /* minutes */
1488         gint answer = G_ALERTDEFAULT;
1489
1490 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1491         /* If no network connection is available, override is not possible */
1492         if(!networkmanager_is_online(NULL))
1493                 return FALSE;
1494 #endif
1495
1496         if (prefs_common.autochk_newmail)
1497                 length = prefs_common.autochk_itv; /* minutes */
1498
1499         if (force_ask) {
1500                 overridden_no = (time_t)0;
1501         }
1502
1503         if (prefs_common.work_offline) {
1504                 gchar *tmp = NULL;
1505
1506                 if (time(NULL) - overridden_yes < length * 60) /* seconds */
1507                          return TRUE;
1508                 else if (time(NULL) - overridden_no < length * 60) /* seconds */
1509                          return FALSE;
1510
1511                 if (!force_ask)
1512                         tmp = g_strdup_printf(
1513                                 _("%s%sYou're working offline. Override for %d minutes?"),
1514                                 msg?msg:"",
1515                                 msg?"\n\n":"",
1516                                 length);
1517                 else
1518                         tmp = g_strdup_printf(
1519                                 _("%s%sYou're working offline. Override?"),
1520                                 msg?msg:"",
1521                                 msg?"\n\n":"");
1522
1523                 answer = alertpanel(_("Offline warning"),
1524                                tmp,
1525                                GTK_STOCK_NO, "+" GTK_STOCK_YES,
1526                                 !force_ask? _("On_ly once"):NULL);
1527                 g_free(tmp);
1528                 if (answer == G_ALERTALTERNATE) {
1529                         overridden_yes = time(NULL);
1530                         return TRUE;
1531                 } else if (answer == G_ALERTDEFAULT) {
1532                         if (!force_ask)
1533                                 overridden_no  = time(NULL);
1534                         return FALSE;
1535                 } else {
1536                         overridden_yes = (time_t)0;
1537                         overridden_no  = (time_t)0;
1538                         return TRUE;
1539                 }
1540         }
1541         return TRUE;
1542 }