80ad90d8bb7b82d1325b9f67ce4a89f9f99e5fef
[claws.git] / 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 }