2010-08-23 [pawel] 3.7.6cvs29
[claws.git] / src / inc.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2009 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 #endif
23
24 #include "defs.h"
25
26 #include <glib.h>
27 #include <glib/gi18n.h>
28 #include <gtk/gtk.h>
29 #include <stdio.h>
30 #include <unistd.h>
31 #include <string.h>
32
33 #include "main.h"
34 #include "inc.h"
35 #include "mainwindow.h"
36 #include "folderview.h"
37 #include "summaryview.h"
38 #include "prefs_common.h"
39 #include "prefs_account.h"
40 #include "account.h"
41 #include "procmsg.h"
42 #include "socket.h"
43 #include "ssl.h"
44 #include "pop.h"
45 #include "recv.h"
46 #include "mbox.h"
47 #include "utils.h"
48 #include "gtkutils.h"
49 #include "statusbar.h"
50 #include "msgcache.h"
51 #include "manage_window.h"
52 #include "stock_pixmap.h"
53 #include "progressdialog.h"
54 #include "inputdialog.h"
55 #include "alertpanel.h"
56 #include "folder.h"
57 #include "filtering.h"
58 #include "log.h"
59 #include "hooks.h"
60
61 #ifdef MAEMO
62 #ifdef CHINOOK
63 #include <hildon/hildon-banner.h>
64 #include <hildon/hildon-sound.h>
65 #else
66 #include <hildon-widgets/hildon-banner.h>
67 #include <hildon-widgets/hildon-system-sound.h>
68 #endif
69 #include <libosso.h>
70
71 #ifdef CONIC
72 #include <conicconnection.h>
73 #include <conicconnectionevent.h>
74
75 static ConIcConnection *maemo_connection = NULL;
76 static gboolean maemo_warned_offline = FALSE;
77 #endif
78 #endif
79
80 static GList *inc_dialog_list = NULL;
81
82 guint inc_lock_count = 0;
83
84 static GdkPixbuf *currentpix;
85 static GdkPixbuf *errorpix;
86 static GdkPixbuf *okpix;
87
88 #define MSGBUFSIZE      8192
89
90 static void inc_finished                (MainWindow             *mainwin,
91                                          gboolean                new_messages,
92                                          gboolean                autocheck);
93 static gint inc_account_mail_real       (MainWindow             *mainwin,
94                                          PrefsAccount           *account);
95
96 static IncProgressDialog *inc_progress_dialog_create
97                                         (gboolean                autocheck);
98 static void inc_progress_dialog_set_list(IncProgressDialog      *inc_dialog);
99 static void inc_progress_dialog_destroy (IncProgressDialog      *inc_dialog);
100
101 static IncSession *inc_session_new      (PrefsAccount           *account);
102 static void inc_session_destroy         (IncSession             *session);
103 static gint inc_start                   (IncProgressDialog      *inc_dialog);
104 static IncState inc_pop3_session_do     (IncSession             *session);
105
106 static void inc_progress_dialog_update  (IncProgressDialog      *inc_dialog,
107                                          IncSession             *inc_session);
108
109 static void inc_progress_dialog_set_label
110                                         (IncProgressDialog      *inc_dialog,
111                                          IncSession             *inc_session);
112 static void inc_progress_dialog_set_progress
113                                         (IncProgressDialog      *inc_dialog,
114                                          IncSession             *inc_session);
115
116 static void inc_progress_dialog_update_periodic
117                                         (IncProgressDialog      *inc_dialog,
118                                          IncSession             *inc_session);
119
120 static gint inc_recv_data_progressive   (Session        *session,
121                                          guint           cur_len,
122                                          guint           total_len,
123                                          gpointer        data);
124 static gint inc_recv_data_finished      (Session        *session,
125                                          guint           len,
126                                          gpointer        data);
127 static gint inc_recv_message            (Session        *session,
128                                          const gchar    *msg,
129                                          gpointer        data);
130 static gint inc_drop_message            (Pop3Session    *session,
131                                          const gchar    *file);
132
133 static void inc_put_error               (IncState        istate,
134                                          Pop3Session    *session);
135
136 static void inc_cancel_cb               (GtkWidget      *widget,
137                                          gpointer        data);
138 static gint inc_dialog_delete_cb        (GtkWidget      *widget,
139                                          GdkEventAny    *event,
140                                          gpointer        data);
141
142 static gint get_spool                   (FolderItem     *dest,
143                                          const gchar    *mbox,
144                                          PrefsAccount   *account);
145
146 static gint inc_spool_account(PrefsAccount *account);
147 static gint inc_all_spool(void);
148 static void inc_autocheck_timer_set_interval    (guint           interval);
149 static gint inc_autocheck_func                  (gpointer        data);
150
151 static void inc_notify_cmd              (gint new_msgs, 
152                                          gboolean notify);
153         
154 /**
155  * inc_finished:
156  * @mainwin: Main window.
157  * @new_messages: TRUE if some messages have been received.
158  * 
159  * Update the folder view and the summary view after receiving
160  * messages.  If @new_messages is FALSE, this function avoids unneeded
161  * updating.
162  **/
163 static void inc_finished(MainWindow *mainwin, gboolean new_messages, gboolean autocheck)
164 {
165         if (prefs_common.scan_all_after_inc)
166                 folderview_check_new(NULL);
167
168         if (!autocheck && new_messages && prefs_common.open_inbox_on_inc) {
169                 FolderItem *item = NULL;
170
171                 if (cur_account && cur_account->inbox)
172                         item = folder_find_item_from_identifier(cur_account->inbox);
173                 if (item == NULL && cur_account->folder)
174                         item = cur_account->folder->inbox;
175                 if (item == NULL)
176                         item = folder_get_default_inbox();
177
178                 folderview_unselect(mainwin->folderview);
179                 folderview_select(mainwin->folderview, item);
180         }
181 }
182
183 void inc_mail(MainWindow *mainwin, gboolean notify)
184 {
185         gint new_msgs = 0;
186         gint account_new_msgs = 0;
187
188         if (inc_lock_count) return;
189
190         if (prefs_common.work_offline && 
191             !inc_offline_should_override(TRUE,
192                 _("Claws Mail needs network access in order "
193                   "to get mails.")))
194                 return;
195
196         inc_lock();
197         inc_autocheck_timer_remove();
198         main_window_lock(mainwin);
199
200         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
201                 /* external incorporating program */
202                 if (execute_command_line(prefs_common.extinc_cmd, FALSE) < 0) {
203                         main_window_unlock(mainwin);
204                         inc_autocheck_timer_set();
205                         inc_unlock();
206                         return;
207                 }
208         } else {
209                 account_new_msgs = inc_account_mail_real(mainwin, cur_account);
210                 if (account_new_msgs > 0)
211                         new_msgs += account_new_msgs;
212         }
213
214         inc_finished(mainwin, new_msgs > 0, FALSE);
215         main_window_unlock(mainwin);
216         inc_notify_cmd(new_msgs, notify);
217         inc_autocheck_timer_set();
218         inc_unlock();
219 }
220
221 void inc_pop_before_smtp(PrefsAccount *acc)
222 {
223         IncProgressDialog *inc_dialog;
224         IncSession *session;
225         MainWindow *mainwin;
226
227         mainwin = mainwindow_get_mainwindow();
228
229         session = inc_session_new(acc);
230         if (!session) return;
231         POP3_SESSION(session->session)->pop_before_smtp = TRUE;
232                 
233         inc_dialog = inc_progress_dialog_create(FALSE);
234         inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
235                                                session);
236         /* FIXME: assumes to attach to first main window */
237         inc_dialog->mainwin = mainwin;
238         inc_progress_dialog_set_list(inc_dialog);
239
240         if (mainwin) {
241                 toolbar_main_set_sensitive(mainwin);
242                 main_window_set_menu_sensitive(mainwin);
243         }
244                         
245         inc_start(inc_dialog);
246 }
247
248 static gint inc_account_mail_real(MainWindow *mainwin, PrefsAccount *account)
249 {
250         IncProgressDialog *inc_dialog;
251         IncSession *session;
252         
253         switch (account->protocol) {
254         case A_IMAP4:
255         case A_NNTP:
256                 /* Melvin: bug [14]
257                  * FIXME: it should return foldeview_check_new() value.
258                  * TODO: do it when bug [19] is fixed (IMAP folder sets 
259                  * an incorrect new message count)
260                  */
261                 folderview_check_new(FOLDER(account->folder));
262                 return 0;
263         case A_POP3:
264         case A_APOP:
265                 session = inc_session_new(account);
266                 if (!session) return 0;
267                 
268                 inc_dialog = inc_progress_dialog_create(FALSE);
269                 inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
270                                                        session);
271                 inc_dialog->mainwin = mainwin;
272                 inc_progress_dialog_set_list(inc_dialog);
273
274                 if (mainwin) {
275                         toolbar_main_set_sensitive(mainwin);
276                         main_window_set_menu_sensitive(mainwin);
277                 }
278                         
279                 return inc_start(inc_dialog);
280
281         case A_LOCAL:
282                 return inc_spool_account(account);
283
284         default:
285                 break;
286         }
287         return 0;
288 }
289
290 gint inc_account_mail(MainWindow *mainwin, PrefsAccount *account)
291 {
292         gint new_msgs;
293
294         if (inc_lock_count) return 0;
295
296         if (prefs_common.work_offline && 
297             !inc_offline_should_override(TRUE,
298                 _("Claws Mail needs network access in order "
299                   "to get mails.")))
300                 return 0;
301
302         inc_autocheck_timer_remove();
303         main_window_lock(mainwin);
304
305         new_msgs = inc_account_mail_real(mainwin, account);
306
307         inc_finished(mainwin, new_msgs > 0, FALSE);
308         main_window_unlock(mainwin);
309         inc_autocheck_timer_set();
310
311         return new_msgs;
312 }
313
314 void inc_all_account_mail(MainWindow *mainwin, gboolean autocheck,
315                           gboolean notify)
316 {
317         GList *list, *queue_list = NULL;
318         IncProgressDialog *inc_dialog;
319         gint new_msgs = 0;
320         gint account_new_msgs = 0;
321         
322         if (prefs_common.work_offline && 
323             !inc_offline_should_override( (autocheck == FALSE),
324                 _("Claws Mail needs network access in order "
325                   "to get mails.")))
326                 return;
327
328         if (inc_lock_count) return;
329
330         inc_autocheck_timer_remove();
331         main_window_lock(mainwin);
332
333         list = account_get_list();
334         if (!list) {
335                 inc_finished(mainwin, new_msgs > 0, autocheck);
336                 main_window_unlock(mainwin);
337                 inc_notify_cmd(new_msgs, notify);
338                 inc_autocheck_timer_set();
339                 return;
340         }
341
342         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
343                 /* external incorporating program */
344                 if (execute_command_line(prefs_common.extinc_cmd, FALSE) < 0) {
345                         log_error(LOG_PROTOCOL, _("%s failed\n"), prefs_common.extinc_cmd);
346                         
347                         main_window_unlock(mainwin);
348                         inc_autocheck_timer_set();
349                         return;
350                 }
351         }
352         
353         /* check local folders */
354         account_new_msgs = inc_all_spool();
355         if (account_new_msgs > 0)
356                 new_msgs += account_new_msgs;
357
358         /* check IMAP4 / News folders */
359         for (list = account_get_list(); list != NULL; list = list->next) {
360                 PrefsAccount *account = list->data;
361                 if ((account->protocol == A_IMAP4 ||
362                      account->protocol == A_NNTP) && account->recv_at_getall) {
363                         new_msgs += folderview_check_new(FOLDER(account->folder));
364                 }
365         }
366
367         /* check POP3 accounts */
368         for (list = account_get_list(); list != NULL; list = list->next) {
369                 IncSession *session;
370                 PrefsAccount *account = list->data;
371
372                 if (account->recv_at_getall) {
373                         session = inc_session_new(account);
374                         if (session)
375                                 queue_list = g_list_append(queue_list, session);
376                 }
377         }
378
379         if (queue_list) {
380                 inc_dialog = inc_progress_dialog_create(autocheck);
381                 inc_dialog->queue_list = queue_list;
382                 inc_dialog->mainwin = mainwin;
383                 inc_progress_dialog_set_list(inc_dialog);
384
385                 toolbar_main_set_sensitive(mainwin);
386                 main_window_set_menu_sensitive(mainwin);
387                 new_msgs += inc_start(inc_dialog);
388         }
389
390         inc_finished(mainwin, new_msgs > 0, autocheck);
391         main_window_unlock(mainwin);
392         inc_notify_cmd(new_msgs, notify);
393         inc_autocheck_timer_set();
394 }
395
396 static void inc_progress_dialog_size_allocate_cb(GtkWidget *widget,
397                                          GtkAllocation *allocation)
398 {
399         cm_return_if_fail(allocation != NULL);
400
401         prefs_common.receivewin_width = allocation->width;
402         prefs_common.receivewin_height = allocation->height;
403 }
404
405 static IncProgressDialog *inc_progress_dialog_create(gboolean autocheck)
406 {
407         IncProgressDialog *dialog;
408         ProgressDialog *progress;
409         static GdkGeometry geometry;
410
411         dialog = g_new0(IncProgressDialog, 1);
412
413         progress = progress_dialog_create();
414         gtk_window_set_title(GTK_WINDOW(progress->window),
415                              _("Retrieving new messages"));
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         gushort port;
772         gchar *buf;
773
774         debug_print("getting new messages of account %s...\n",
775                     pop3_session->ac_prefs->account_name);
776                     
777         pop3_session->ac_prefs->last_pop_login_time = time(NULL);
778
779         buf = g_strdup_printf(_("%s: Retrieving new messages"),
780                               pop3_session->ac_prefs->recv_server);
781         gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window), buf);
782         g_free(buf);
783
784         server = pop3_session->ac_prefs->recv_server;
785 #ifdef USE_GNUTLS
786         port = pop3_session->ac_prefs->set_popport ?
787                 pop3_session->ac_prefs->popport :
788                 pop3_session->ac_prefs->ssl_pop == SSL_TUNNEL ? 995 : 110;
789         SESSION(pop3_session)->ssl_type = pop3_session->ac_prefs->ssl_pop;
790         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE)
791                 SESSION(pop3_session)->nonblocking =
792                         pop3_session->ac_prefs->use_nonblocking_ssl;
793 #else
794         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE) {
795                 if (alertpanel_full(_("Insecure connection"),
796                         _("This connection is configured to be secured "
797                           "using SSL, but SSL is not available in this "
798                           "build of Claws Mail. \n\n"
799                           "Do you want to continue connecting to this "
800                           "server? The communication would not be "
801                           "secure."),
802                           GTK_STOCK_CANCEL, _("Con_tinue connecting"), 
803                           NULL, FALSE, NULL, ALERT_WARNING,
804                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
805                         return INC_CANCEL;
806         }
807         port = pop3_session->ac_prefs->set_popport ?
808                 pop3_session->ac_prefs->popport : 110;
809 #endif
810
811         buf = g_strdup_printf(_("Connecting to POP3 server: %s..."), server);
812         statuswindow_print_all("%s", buf);
813         log_message(LOG_PROTOCOL, "%s\n", buf);
814
815         progress_dialog_set_label(inc_dialog->dialog, buf);
816         GTK_EVENTS_FLUSH();
817         g_free(buf);
818
819         session_set_timeout(SESSION(pop3_session),
820                             prefs_common.io_timeout_secs * 1000);
821         
822         if (session_connect(SESSION(pop3_session), server, port) < 0) {
823                 if(!prefs_common.no_recv_err_panel) {
824                         if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
825                             ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window)) {
826                                 manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
827                         }
828                         alertpanel_error(_("Can't connect to POP3 server: %s:%d"),
829                                          server, port);
830                         manage_window_focus_out(inc_dialog->dialog->window, NULL, NULL);
831                 } else {
832                         log_error(LOG_PROTOCOL, _("Can't connect to POP3 server: %s:%d\n"),
833                             server, port);
834                 }
835                 session->inc_state = INC_CONNECT_ERROR;
836                 statuswindow_pop_all();
837                 return INC_CONNECT_ERROR;
838         }
839
840         while (session_is_connected(SESSION(pop3_session)) &&
841                session->inc_state != INC_CANCEL)
842                 gtk_main_iteration();
843
844         if (session->inc_state == INC_SUCCESS) {
845                 switch (pop3_session->error_val) {
846                 case PS_SUCCESS:
847                         switch (SESSION(pop3_session)->state) {
848                         case SESSION_ERROR:
849                                 if (pop3_session->state == POP3_READY)
850                                         session->inc_state = INC_CONNECT_ERROR;
851                                 else
852                                         session->inc_state = INC_ERROR;
853                                 break;
854                         case SESSION_EOF:
855                                 session->inc_state = INC_EOF;
856                                 break;
857                         case SESSION_TIMEOUT:
858                                 session->inc_state = INC_TIMEOUT;
859                                 break;
860                         default:
861                                 session->inc_state = INC_SUCCESS;
862                                 break;
863                         }
864                         break;
865                 case PS_AUTHFAIL:
866                         session->inc_state = INC_AUTH_FAILED;
867                         break;
868                 case PS_IOERR:
869                         session->inc_state = INC_IO_ERROR;
870                         break;
871                 case PS_SOCKET:
872                         session->inc_state = INC_SOCKET_ERROR;
873                         break;
874                 case PS_LOCKBUSY:
875                         session->inc_state = INC_LOCKED;
876                         break;
877                 default:
878                         session->inc_state = INC_ERROR;
879                         break;
880                 }
881         }
882
883         session_disconnect(SESSION(pop3_session));
884         statusbar_pop_all();
885
886         return session->inc_state;
887 }
888
889 static void inc_progress_dialog_update(IncProgressDialog *inc_dialog,
890                                        IncSession *inc_session)
891 {
892         inc_progress_dialog_set_label(inc_dialog, inc_session);
893         inc_progress_dialog_set_progress(inc_dialog, inc_session);
894 }
895
896 static void inc_progress_dialog_set_label(IncProgressDialog *inc_dialog,
897                                           IncSession *inc_session)
898 {
899         ProgressDialog *dialog = inc_dialog->dialog;
900         Pop3Session *session;
901
902         cm_return_if_fail(inc_session != NULL);
903
904         session = POP3_SESSION(inc_session->session);
905
906         switch (session->state) {
907         case POP3_GREETING:
908                 break;
909         case POP3_GETAUTH_USER:
910         case POP3_GETAUTH_PASS:
911         case POP3_GETAUTH_APOP:
912                 progress_dialog_set_label(dialog, _("Authenticating..."));
913                 statuswindow_pop_all();
914                 statusbar_print_all(_("Retrieving messages from %s (%s) ..."),
915                                     SESSION(session)->server,
916                                     session->ac_prefs->account_name);
917                 break;
918         case POP3_GETRANGE_STAT:
919                 progress_dialog_set_label
920                         (dialog, _("Getting the number of new messages (STAT)..."));
921                 break;
922         case POP3_GETRANGE_LAST:
923                 progress_dialog_set_label
924                         (dialog, _("Getting the number of new messages (LAST)..."));
925                 break;
926         case POP3_GETRANGE_UIDL:
927                 progress_dialog_set_label
928                         (dialog, _("Getting the number of new messages (UIDL)..."));
929                 break;
930         case POP3_GETSIZE_LIST:
931                 progress_dialog_set_label
932                         (dialog, _("Getting the size of messages (LIST)..."));
933                 break;
934         case POP3_RETR:
935         case POP3_RETR_RECV:
936         case POP3_DELETE:
937                 break;
938         case POP3_LOGOUT:
939                 progress_dialog_set_label(dialog, _("Quitting"));
940                 break;
941         default:
942                 break;
943         }
944 }
945
946 static void inc_progress_dialog_set_progress(IncProgressDialog *inc_dialog,
947                                              IncSession *inc_session)
948 {
949         gchar buf[MSGBUFSIZE];
950         Pop3Session *pop3_session = POP3_SESSION(inc_session->session);
951         gchar *total_size_str;
952         gint cur_total;
953         gint total;
954
955         if (!pop3_session->new_msg_exist) return;
956
957         cur_total = inc_session->cur_total_bytes;
958         total = pop3_session->total_bytes;
959         if (pop3_session->state == POP3_RETR ||
960             pop3_session->state == POP3_RETR_RECV ||
961             pop3_session->state == POP3_DELETE) {
962                 Xstrdup_a(total_size_str, to_human_readable((goffset)total), return);
963                 g_snprintf(buf, sizeof(buf),
964                            _("Retrieving message (%d / %d) (%s / %s)"),
965                            pop3_session->cur_msg, pop3_session->count,
966                            to_human_readable((goffset)cur_total), total_size_str);
967                 progress_dialog_set_label(inc_dialog->dialog, buf);
968         }
969
970         progress_dialog_set_fraction
971                 (inc_dialog->dialog, (total == 0) ? 0: (gfloat)cur_total / (gfloat)total);
972
973         statusbar_progress_all(pop3_session->cur_msg, pop3_session->count, 1);
974
975         if (pop3_session->cur_total_num > 0) {
976                 g_snprintf(buf, sizeof(buf),
977                            ngettext("Retrieving (%d message (%s) received)",
978                                     "Retrieving (%d messages (%s) received)",
979                                     pop3_session->cur_total_num),
980                            pop3_session->cur_total_num,
981                            to_human_readable
982                            ((goffset)pop3_session->cur_total_recv_bytes));
983                 progress_dialog_list_set_status(inc_dialog->dialog,
984                                                 inc_dialog->cur_row,
985                                                 buf);
986         }
987 }
988
989 static void inc_progress_dialog_update_periodic(IncProgressDialog *inc_dialog,
990                                                 IncSession *inc_session)
991 {
992         GTimeVal tv_cur;
993         GTimeVal tv_result;
994         gint msec;
995
996         g_get_current_time(&tv_cur);
997
998         tv_result.tv_sec = tv_cur.tv_sec - inc_dialog->progress_tv.tv_sec;
999         tv_result.tv_usec = tv_cur.tv_usec - inc_dialog->progress_tv.tv_usec;
1000         if (tv_result.tv_usec < 0) {
1001                 tv_result.tv_sec--;
1002                 tv_result.tv_usec += G_USEC_PER_SEC;
1003         }
1004
1005         msec = tv_result.tv_sec * 1000 + tv_result.tv_usec / 1000;
1006         if (msec > PROGRESS_UPDATE_INTERVAL) {
1007                 inc_progress_dialog_update(inc_dialog, inc_session);
1008                 inc_dialog->progress_tv.tv_sec = tv_cur.tv_sec;
1009                 inc_dialog->progress_tv.tv_usec = tv_cur.tv_usec;
1010         }
1011 }
1012
1013 static gint inc_recv_data_progressive(Session *session, guint cur_len,
1014                                       guint total_len, gpointer data)
1015 {
1016         IncSession *inc_session = (IncSession *)data;
1017         Pop3Session *pop3_session = POP3_SESSION(session);
1018         IncProgressDialog *inc_dialog;
1019         gint cur_total;
1020
1021         cm_return_val_if_fail(inc_session != NULL, -1);
1022
1023         if (pop3_session->state != POP3_RETR &&
1024             pop3_session->state != POP3_RETR_RECV &&
1025             pop3_session->state != POP3_DELETE &&
1026             pop3_session->state != POP3_LOGOUT) return 0;
1027
1028         if (!pop3_session->new_msg_exist) return 0;
1029
1030         cur_total = pop3_session->cur_total_bytes + cur_len;
1031         if (cur_total > pop3_session->total_bytes)
1032                 cur_total = pop3_session->total_bytes;
1033         inc_session->cur_total_bytes = cur_total;
1034
1035         inc_dialog = (IncProgressDialog *)inc_session->data;
1036         inc_progress_dialog_update_periodic(inc_dialog, inc_session);
1037
1038         return 0;
1039 }
1040
1041 static gint inc_recv_data_finished(Session *session, guint len, gpointer data)
1042 {
1043         IncSession *inc_session = (IncSession *)data;
1044         IncProgressDialog *inc_dialog;
1045
1046         cm_return_val_if_fail(inc_session != NULL, -1);
1047
1048         inc_dialog = (IncProgressDialog *)inc_session->data;
1049
1050         inc_recv_data_progressive(session, 0, 0, inc_session);
1051
1052         if (POP3_SESSION(session)->state == POP3_LOGOUT) {
1053                 inc_progress_dialog_update(inc_dialog, inc_session);
1054         }
1055
1056         return 0;
1057 }
1058
1059 static gint inc_recv_message(Session *session, const gchar *msg, gpointer data)
1060 {
1061         IncSession *inc_session = (IncSession *)data;
1062         IncProgressDialog *inc_dialog;
1063
1064         cm_return_val_if_fail(inc_session != NULL, -1);
1065
1066         inc_dialog = (IncProgressDialog *)inc_session->data;
1067
1068         switch (POP3_SESSION(session)->state) {
1069         case POP3_GETAUTH_USER:
1070         case POP3_GETAUTH_PASS:
1071         case POP3_GETAUTH_APOP:
1072         case POP3_GETRANGE_STAT:
1073         case POP3_GETRANGE_LAST:
1074         case POP3_GETRANGE_UIDL:
1075         case POP3_GETSIZE_LIST:
1076                 inc_progress_dialog_update(inc_dialog, inc_session);
1077                 break;
1078         case POP3_RETR:
1079                 inc_recv_data_progressive(session, 0, 0, inc_session);
1080                 break;
1081         case POP3_LOGOUT:
1082                 inc_progress_dialog_update(inc_dialog, inc_session);
1083                 break;
1084         default:
1085                 break;
1086         }
1087
1088         return 0;
1089 }
1090
1091 static gint inc_drop_message(Pop3Session *session, const gchar *file)
1092 {
1093         FolderItem *inbox;
1094         FolderItem *dropfolder;
1095         IncSession *inc_session = (IncSession *)(SESSION(session)->data);
1096         gint msgnum;
1097
1098         cm_return_val_if_fail(inc_session != NULL, -1);
1099
1100         if (session->ac_prefs->inbox) {
1101                 inbox = folder_find_item_from_identifier
1102                         (session->ac_prefs->inbox);
1103                 if (!inbox)
1104                         inbox = folder_get_default_inbox();
1105         } else
1106                 inbox = folder_get_default_inbox();
1107         if (!inbox) {
1108                 claws_unlink(file);
1109                 return -1;
1110         }
1111
1112         /* CLAWS: claws uses a global .processing folder for the filtering. */
1113         dropfolder = folder_get_default_processing();
1114
1115         /* add msg file to drop folder */
1116         if ((msgnum = folder_item_add_msg(
1117                         dropfolder, file, NULL, TRUE)) < 0) {
1118                 claws_unlink(file);
1119                 return -1;
1120         }
1121
1122         return 0;
1123 }
1124
1125 static void inc_put_error(IncState istate, Pop3Session *session)
1126 {
1127         gchar *log_msg = NULL;
1128         gchar *err_msg = NULL;
1129         gboolean fatal_error = FALSE;
1130
1131         switch (istate) {
1132         case INC_CONNECT_ERROR:
1133                 log_msg = _("Connection failed.");
1134                 fatal_error = TRUE;
1135                 if (prefs_common.no_recv_err_panel)
1136                         break;
1137                 err_msg = g_strdup_printf(_("Connection to %s:%d failed."),
1138                                           SESSION(session)->server, 
1139                                           SESSION(session)->port);
1140                 break;
1141         case INC_ERROR:
1142                 log_msg = _("Error occurred while processing mail.");
1143                 fatal_error = TRUE;
1144                 if (prefs_common.no_recv_err_panel)
1145                         break;
1146                 if (session->error_msg)
1147                         err_msg = g_strdup_printf
1148                                 (_("Error occurred while processing mail:\n%s"),
1149                                  session->error_msg);
1150                 else
1151                         err_msg = g_strdup(log_msg);
1152                 break;
1153         case INC_NO_SPACE:
1154                 log_msg = _("No disk space left.");
1155                 err_msg = g_strdup(log_msg);
1156                 fatal_error = TRUE;
1157                 break;
1158         case INC_IO_ERROR:
1159                 log_msg = _("Can't write file.");
1160                 err_msg = g_strdup(log_msg);
1161                 fatal_error = TRUE;
1162                 break;
1163         case INC_SOCKET_ERROR:
1164                 log_msg = _("Socket error.");
1165                 if (prefs_common.no_recv_err_panel)
1166                         break;
1167                 err_msg = g_strdup_printf(_("Socket error on connection to %s:%d."),
1168                                           SESSION(session)->server, 
1169                                           SESSION(session)->port);
1170                 break;
1171         case INC_EOF:
1172                 log_msg = _("Connection closed by the remote host.");
1173                 if (prefs_common.no_recv_err_panel)
1174                         break;
1175                 err_msg = g_strdup_printf(_("Connection to %s:%d closed by the remote host."), 
1176                                           SESSION(session)->server, 
1177                                           SESSION(session)->port);
1178                 break;
1179         case INC_LOCKED:
1180                 log_msg = _("Mailbox is locked.");
1181                 if (prefs_common.no_recv_err_panel)
1182                         break;
1183                 if (session->error_msg)
1184                         err_msg = g_strdup_printf(_("Mailbox is locked:\n%s"),
1185                                                   session->error_msg);
1186                 else
1187                         err_msg = g_strdup(log_msg);
1188                 break;
1189         case INC_AUTH_FAILED:
1190                 log_msg = _("Authentication failed.");
1191                 fatal_error = TRUE;
1192                 if (prefs_common.no_recv_err_panel)
1193                         break;
1194                 if (session->error_msg)
1195                         err_msg = g_strdup_printf
1196                                 (_("Authentication failed:\n%s"), session->error_msg);
1197                 else
1198                         err_msg = g_strdup(log_msg);
1199                 break;
1200         case INC_TIMEOUT:
1201                 log_msg = _("Session timed out. You may be able to "
1202                             "recover by increasing the timeout value in "
1203                             "Preferences/Other/Miscellaneous.");
1204                 if (prefs_common.no_recv_err_panel)
1205                         break;
1206                 err_msg = g_strdup_printf(_("Connection to %s:%d timed out."), 
1207                                           SESSION(session)->server, 
1208                                           SESSION(session)->port);
1209                 break;
1210         default:
1211                 break;
1212         }
1213
1214         if (log_msg) {
1215                 if (fatal_error)
1216                         log_error(LOG_PROTOCOL, "%s\n", log_msg);
1217                 else
1218                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
1219         }
1220         if (prefs_common.no_recv_err_panel && fatal_error)
1221                 mainwindow_show_error();
1222
1223         if (err_msg) {
1224                 alertpanel_error_log("%s", err_msg);
1225                 g_free(err_msg);
1226         }
1227 }
1228
1229 static void inc_cancel(IncProgressDialog *dialog)
1230 {
1231         IncSession *session;
1232
1233         cm_return_if_fail(dialog != NULL);
1234
1235         if (dialog->queue_list == NULL) {
1236                 inc_progress_dialog_destroy(dialog);
1237                 return;
1238         }
1239
1240         session = dialog->queue_list->data;
1241
1242         session->inc_state = INC_CANCEL;
1243
1244         log_message(LOG_PROTOCOL, _("Incorporation cancelled\n"));
1245 }
1246
1247 gboolean inc_is_active(void)
1248 {
1249         return (inc_dialog_list != NULL);
1250 }
1251
1252 void inc_cancel_all(void)
1253 {
1254         GList *cur;
1255
1256         for (cur = inc_dialog_list; cur != NULL; cur = cur->next)
1257                 inc_cancel((IncProgressDialog *)cur->data);
1258 }
1259
1260 static void inc_cancel_cb(GtkWidget *widget, gpointer data)
1261 {
1262         inc_cancel((IncProgressDialog *)data);
1263 }
1264
1265 static gint inc_dialog_delete_cb(GtkWidget *widget, GdkEventAny *event,
1266                                  gpointer data)
1267 {
1268         IncProgressDialog *dialog = (IncProgressDialog *)data;
1269
1270         if (dialog->queue_list == NULL)
1271                 inc_progress_dialog_destroy(dialog);
1272
1273         return TRUE;
1274 }
1275
1276 static gint inc_spool_account(PrefsAccount *account)
1277 {
1278         FolderItem *inbox;
1279         gchar *mbox;
1280         gint result;
1281
1282         if (account->local_inbox) {
1283                 inbox = folder_find_item_from_identifier(account->local_inbox);
1284                 if (!inbox)
1285                         inbox = folder_get_default_inbox();
1286         } else
1287                 inbox = folder_get_default_inbox();
1288
1289         if (account->local_mbox) {
1290                 if (is_file_exist(account->local_mbox))
1291                         mbox = g_strdup(account->local_mbox);
1292                 else if (is_dir_exist(account->local_mbox)) 
1293                         mbox = g_strconcat(account->local_mbox, G_DIR_SEPARATOR_S,
1294                                            g_get_user_name(), NULL);
1295                 else {
1296                         debug_print("%s: local mailbox not found.\n", 
1297                                     account->local_mbox);
1298                         return -1;
1299                 }
1300         } else {
1301                 debug_print("local mailbox not set in account info.\n");
1302                 return -1;
1303         }       
1304
1305         result = get_spool(inbox, mbox, account);
1306         g_free(mbox);
1307         
1308         statusbar_pop_all();
1309         
1310         return result;
1311 }
1312
1313 static gint inc_all_spool(void)
1314 {
1315         GList *list = NULL;
1316         gint new_msgs = 0;
1317         gint account_new_msgs = 0;
1318
1319         list = account_get_list();
1320         if (!list) return 0;
1321
1322         for (; list != NULL; list = list->next) {
1323                 PrefsAccount *account = list->data;
1324
1325                 if ((account->protocol == A_LOCAL) &&
1326                     (account->recv_at_getall)) {
1327                         account_new_msgs = inc_spool_account(account);
1328                         if (account_new_msgs > 0)
1329                                 new_msgs += account_new_msgs;
1330                 }
1331         }
1332
1333         return new_msgs;
1334 }
1335
1336 static gint get_spool(FolderItem *dest, const gchar *mbox, PrefsAccount *account)
1337 {
1338         gint msgs, size;
1339         gint lockfd;
1340         gchar tmp_mbox[MAXPATHLEN + 1];
1341
1342         cm_return_val_if_fail(dest != NULL, -1);
1343         cm_return_val_if_fail(mbox != NULL, -1);
1344         cm_return_val_if_fail(account != NULL, -1);
1345
1346         if (!is_file_exist(mbox) || (size = get_file_size(mbox)) == 0) {
1347                 debug_print("%s: no messages in local mailbox.\n", mbox);
1348                 return 0;
1349         } else if (size < 0)
1350                 return -1;
1351
1352         if ((lockfd = lock_mbox(mbox, LOCK_FLOCK)) < 0)
1353                 return -1;
1354
1355         g_snprintf(tmp_mbox, sizeof(tmp_mbox), "%s%ctmpmbox.%p",
1356                    get_tmp_dir(), G_DIR_SEPARATOR, mbox);
1357
1358         if (copy_mbox(lockfd, tmp_mbox) < 0) {
1359                 unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1360                 return -1;
1361         }
1362
1363         debug_print("Getting new messages from %s into %s...\n",
1364                     mbox, dest->path);
1365
1366         msgs = proc_mbox(dest, tmp_mbox, account->filter_on_recv, account);
1367
1368         claws_unlink(tmp_mbox);
1369         if (msgs >= 0) empty_mbox(mbox);
1370         unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1371
1372         return msgs;
1373 }
1374
1375 void inc_lock_real(void)
1376 {
1377         inc_lock_count++;
1378 }
1379
1380 void inc_unlock_real(void)
1381 {
1382         if (inc_lock_count > 0)
1383                 inc_lock_count--;
1384 }
1385
1386 static guint autocheck_timer = 0;
1387 static gpointer autocheck_data = NULL;
1388
1389 #ifdef MAEMO
1390 osso_context_t *get_osso_context(void);
1391 #endif
1392
1393 static void inc_notify_cmd(gint new_msgs, gboolean notify)
1394 {
1395
1396 #ifndef MAEMO
1397         gchar *buf, *numpos, *ret_str;
1398         gssize by_read = 0, by_written = 0;
1399
1400         if (!(new_msgs && notify && prefs_common.newmail_notify_cmd &&
1401             *prefs_common.newmail_notify_cmd))
1402                      return;
1403
1404         buf = g_strdup(prefs_common.newmail_notify_cmd);
1405         if ((numpos = strstr(buf, "%d")) != NULL) {
1406                 gchar *buf2;
1407
1408                 *numpos = '\0';
1409                 buf2 = g_strdup_printf("%s%d%s", buf, new_msgs, numpos + 2);
1410                 g_free(buf);
1411                 buf = buf2;
1412         }
1413
1414         ret_str = g_locale_from_utf8(buf, strlen(buf), &by_read, &by_written,
1415                                      NULL);
1416         if (ret_str && by_written) {
1417                 g_free(buf);
1418                 buf = ret_str;
1419         }
1420         debug_print("executing new mail notification command: %s\n", buf);
1421         execute_command_line(buf, TRUE);
1422
1423         g_free(buf);
1424
1425 #else
1426         if (new_msgs) {
1427                 if (prefs_common.maemo_play_sound)
1428                         hildon_play_system_sound("/usr/share/sounds/ui-new_email.wav");
1429                 if (prefs_common.maemo_show_banner) {
1430                         gchar *info = g_strdup_printf(ngettext("Claws Mail: %d new message",
1431                                                    "Claws Mail: %d new messages",
1432                                                    new_msgs), new_msgs);
1433                         osso_system_note_infoprint(get_osso_context(), info, NULL);
1434                         g_free(info);
1435                 }
1436         }
1437 #endif
1438 }
1439
1440 #if (defined(MAEMO) && defined(CONIC))
1441 static void maemo_connection_event(ConIcConnection *connection, 
1442                                    ConIcConnectionEvent *event,
1443                                    gpointer user_data)
1444 {
1445         ConIcConnectionStatus status =
1446                 con_ic_connection_event_get_status(event);
1447         MainWindow *mainwin = (MainWindow *)user_data;
1448         switch(status) {
1449         case CON_IC_STATUS_CONNECTED:
1450                 debug_print("we're connected\n");
1451                 main_window_toggle_work_offline(mainwin, FALSE, FALSE);
1452                 break;
1453         default:
1454                 debug_print("we're disconnected\n");
1455                 main_window_toggle_work_offline(mainwin, TRUE, FALSE);
1456                 maemo_warned_offline = FALSE;
1457                 break;
1458         }
1459 }
1460
1461 #endif
1462
1463 void inc_autocheck_timer_init(MainWindow *mainwin)
1464 {
1465 #if (defined(MAEMO) && defined(CONIC))
1466         GValue *val = g_new0(GValue, 1);
1467         maemo_connection = con_ic_connection_new();
1468
1469         g_value_init(val, G_TYPE_BOOLEAN);
1470         g_value_set_boolean(val, TRUE);
1471         g_object_set_property(G_OBJECT(maemo_connection),
1472                         "automatic-connection-events", val);
1473         g_free(val);    
1474         g_signal_connect (maemo_connection, "connection-event",
1475                           G_CALLBACK(maemo_connection_event), mainwin); 
1476         con_ic_connection_connect (maemo_connection,
1477                 CON_IC_CONNECT_FLAG_AUTOMATICALLY_TRIGGERED);
1478         autocheck_data = mainwin;
1479 #else
1480         autocheck_data = mainwin;
1481         inc_autocheck_timer_set();
1482 #endif
1483 }
1484
1485 static void inc_autocheck_timer_set_interval(guint interval)
1486 {
1487         inc_autocheck_timer_remove();
1488         /* last test is to avoid re-enabling auto_check after modifying 
1489            the common preferences */
1490         if (prefs_common.autochk_newmail && autocheck_data
1491             && prefs_common.work_offline == FALSE) {
1492 #if GLIB_CHECK_VERSION(2,14,0)
1493                 if (interval % 1000 == 0)
1494                         autocheck_timer =
1495                                 g_timeout_add_seconds(interval/1000, inc_autocheck_func, autocheck_data);
1496                 else
1497 #endif
1498                 autocheck_timer = g_timeout_add
1499                         (interval, inc_autocheck_func, autocheck_data);
1500                 debug_print("added timer = %d\n", autocheck_timer);
1501         }
1502 }
1503
1504 void inc_autocheck_timer_set(void)
1505 {
1506         inc_autocheck_timer_set_interval(prefs_common.autochk_itv * 60000);
1507 #if (defined(MAEMO) && defined(CONIC))
1508         con_ic_connection_connect (maemo_connection,
1509                 CON_IC_CONNECT_FLAG_AUTOMATICALLY_TRIGGERED);
1510 #endif
1511 }
1512
1513 void inc_autocheck_timer_remove(void)
1514 {
1515         if (autocheck_timer) {
1516                 debug_print("removed timer = %d\n", autocheck_timer);
1517                 g_source_remove(autocheck_timer);
1518                 autocheck_timer = 0;
1519         }
1520 }
1521
1522 static gint inc_autocheck_func(gpointer data)
1523 {
1524         MainWindow *mainwin = (MainWindow *)data;
1525
1526         if (inc_lock_count) {
1527                 debug_print("autocheck is locked.\n");
1528                 inc_autocheck_timer_set_interval(1000);
1529                 return FALSE;
1530         }
1531
1532         inc_all_account_mail(mainwin, TRUE, prefs_common.newmail_notify_auto);
1533
1534         return FALSE;
1535 }
1536
1537 gboolean inc_offline_should_override(gboolean force_ask, const gchar *msg)
1538 {
1539         static time_t overridden_yes = 0;
1540         static time_t overridden_no  = 0;
1541         int length = 10; /* minutes */
1542         gint answer = G_ALERTDEFAULT;
1543
1544 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1545         /* If no network connection is available, override is not possible */
1546         if(!networkmanager_is_online(NULL))
1547                 return FALSE;
1548 #endif
1549
1550 #if (defined(MAEMO) && defined(CONIC))
1551         if (prefs_common.work_offline) {
1552                 if (force_ask && !maemo_warned_offline) {
1553                         if (mainwindow_get_mainwindow())
1554                                 hildon_banner_show_information(
1555                                         mainwindow_get_mainwindow()->window, 
1556                                         NULL,
1557                                         _("Unable to connect: you are offline."));
1558                         maemo_warned_offline = TRUE;
1559                 }
1560                 return FALSE;
1561         } else {
1562                 return TRUE;
1563         }
1564 #endif  
1565
1566         if (prefs_common.autochk_newmail)
1567                 length = prefs_common.autochk_itv; /* minutes */
1568
1569         if (force_ask) {
1570                 overridden_no = (time_t)0;
1571         }
1572
1573         if (prefs_common.work_offline) {
1574                 gchar *tmp = NULL;
1575                 
1576                 if (time(NULL) - overridden_yes < length * 60) /* seconds */
1577                          return TRUE;
1578                 else if (time(NULL) - overridden_no < length * 60) /* seconds */
1579                          return FALSE;
1580
1581                 if (!force_ask)
1582                         tmp = g_strdup_printf(
1583                                 _("%s%sYou're working offline. Override for %d minutes?"),
1584                                 msg?msg:"", 
1585                                 msg?"\n\n":"",
1586                                 length);
1587                 else
1588                         tmp = g_strdup_printf(
1589                                 _("%s%sYou're working offline. Override?"),
1590                                 msg?msg:"", 
1591                                 msg?"\n\n":"");
1592
1593                 answer = alertpanel(_("Offline warning"), 
1594                                tmp,
1595                                GTK_STOCK_NO, "+" GTK_STOCK_YES, 
1596                                 !force_ask? _("On_ly once"):NULL);
1597                 g_free(tmp);
1598                 if (answer == G_ALERTALTERNATE) {
1599                         overridden_yes = time(NULL);
1600                         return TRUE;
1601                 } else if (answer == G_ALERTDEFAULT) {
1602                         if (!force_ask)
1603                                 overridden_no  = time(NULL);
1604                         return FALSE;
1605                 } else {
1606                         overridden_yes = (time_t)0;
1607                         overridden_no  = (time_t)0;
1608                         return TRUE;
1609                 }
1610         }
1611         return TRUE;
1612 }