2006-09-01 [colin] 2.4.0cvs127
[claws.git] / src / inc.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws 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 2 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, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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/gtkmain.h>
29 #include <gtk/gtkwindow.h>
30 #include <gtk/gtksignal.h>
31 #include <gtk/gtkprogressbar.h>
32 #include <stdio.h>
33 #include <unistd.h>
34 #include <string.h>
35
36 #include "main.h"
37 #include "inc.h"
38 #include "mainwindow.h"
39 #include "folderview.h"
40 #include "summaryview.h"
41 #include "prefs_common.h"
42 #include "prefs_account.h"
43 #include "account.h"
44 #include "procmsg.h"
45 #include "socket.h"
46 #include "ssl.h"
47 #include "pop.h"
48 #include "recv.h"
49 #include "mbox.h"
50 #include "utils.h"
51 #include "gtkutils.h"
52 #include "statusbar.h"
53 #include "msgcache.h"
54 #include "manage_window.h"
55 #include "stock_pixmap.h"
56 #include "progressdialog.h"
57 #include "inputdialog.h"
58 #include "alertpanel.h"
59 #include "folder.h"
60 #include "filtering.h"
61 #include "log.h"
62 #include "hooks.h"
63
64 static GList *inc_dialog_list = NULL;
65
66 static guint inc_lock_count = 0;
67
68 static GdkPixbuf *currentpix;
69 static GdkPixbuf *errorpix;
70 static GdkPixbuf *okpix;
71
72 #define MSGBUFSIZE      8192
73
74 static void inc_finished                (MainWindow             *mainwin,
75                                          gboolean                new_messages);
76 static gint inc_account_mail_real       (MainWindow             *mainwin,
77                                          PrefsAccount           *account);
78
79 static IncProgressDialog *inc_progress_dialog_create
80                                         (gboolean                autocheck);
81 static void inc_progress_dialog_set_list(IncProgressDialog      *inc_dialog);
82 static void inc_progress_dialog_destroy (IncProgressDialog      *inc_dialog);
83
84 static IncSession *inc_session_new      (PrefsAccount           *account);
85 static void inc_session_destroy         (IncSession             *session);
86 static gint inc_start                   (IncProgressDialog      *inc_dialog);
87 static IncState inc_pop3_session_do     (IncSession             *session);
88
89 static void inc_progress_dialog_update  (IncProgressDialog      *inc_dialog,
90                                          IncSession             *inc_session);
91
92 static void inc_progress_dialog_set_label
93                                         (IncProgressDialog      *inc_dialog,
94                                          IncSession             *inc_session);
95 static void inc_progress_dialog_set_progress
96                                         (IncProgressDialog      *inc_dialog,
97                                          IncSession             *inc_session);
98
99 static void inc_progress_dialog_update_periodic
100                                         (IncProgressDialog      *inc_dialog,
101                                          IncSession             *inc_session);
102
103 static gint inc_recv_data_progressive   (Session        *session,
104                                          guint           cur_len,
105                                          guint           total_len,
106                                          gpointer        data);
107 static gint inc_recv_data_finished      (Session        *session,
108                                          guint           len,
109                                          gpointer        data);
110 static gint inc_recv_message            (Session        *session,
111                                          const gchar    *msg,
112                                          gpointer        data);
113 static gint inc_drop_message            (Pop3Session    *session,
114                                          const gchar    *file);
115
116 static void inc_put_error               (IncState        istate,
117                                          Pop3Session    *session);
118
119 static void inc_cancel_cb               (GtkWidget      *widget,
120                                          gpointer        data);
121 static gint inc_dialog_delete_cb        (GtkWidget      *widget,
122                                          GdkEventAny    *event,
123                                          gpointer        data);
124
125 static gint get_spool                   (FolderItem     *dest,
126                                          const gchar    *mbox);
127
128 static gint inc_spool_account(PrefsAccount *account);
129 static gint inc_all_spool(void);
130 static void inc_autocheck_timer_set_interval    (guint           interval);
131 static gint inc_autocheck_func                  (gpointer        data);
132
133 static void inc_notify_cmd              (gint new_msgs, 
134                                          gboolean notify);
135         
136 /**
137  * inc_finished:
138  * @mainwin: Main window.
139  * @new_messages: TRUE if some messages have been received.
140  * 
141  * Update the folder view and the summary view after receiving
142  * messages.  If @new_messages is FALSE, this function avoids unneeded
143  * updating.
144  **/
145 static void inc_finished(MainWindow *mainwin, gboolean new_messages)
146 {
147         FolderItem *item;
148
149         if (prefs_common.scan_all_after_inc)
150                 folderview_check_new(NULL);
151
152         if (!new_messages && !prefs_common.scan_all_after_inc) return;
153
154         if (prefs_common.open_inbox_on_inc) {
155                 item = cur_account && cur_account->inbox
156                         ? folder_find_item_from_identifier(cur_account->inbox)
157                         : folder_get_default_inbox();
158                 folderview_unselect(mainwin->folderview);
159                 folderview_select(mainwin->folderview, item);
160         }
161 }
162
163 void inc_mail(MainWindow *mainwin, gboolean notify)
164 {
165         gint new_msgs = 0;
166         gint account_new_msgs = 0;
167
168         if (inc_lock_count) return;
169
170         if (prefs_common.work_offline && 
171             !inc_offline_should_override(
172                 _("Sylpheed-Claws needs network access in order "
173                   "to get mails.")))
174                 return;
175
176         inc_lock();
177         inc_autocheck_timer_remove();
178         main_window_lock(mainwin);
179
180         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
181                 /* external incorporating program */
182                 if (execute_command_line(prefs_common.extinc_cmd, FALSE) < 0) {
183                         main_window_unlock(mainwin);
184                         inc_autocheck_timer_set();
185                         return;
186                 }
187         } else {
188                 account_new_msgs = inc_account_mail_real(mainwin, cur_account);
189                 if (account_new_msgs > 0)
190                         new_msgs += account_new_msgs;
191         }
192
193         inc_finished(mainwin, new_msgs > 0);
194         main_window_unlock(mainwin);
195         inc_notify_cmd(new_msgs, notify);
196         inc_autocheck_timer_set();
197         inc_unlock();
198 }
199
200 void inc_pop_before_smtp(PrefsAccount *acc)
201 {
202         IncProgressDialog *inc_dialog;
203         IncSession *session;
204         MainWindow *mainwin;
205
206         mainwin = mainwindow_get_mainwindow();
207
208         session = inc_session_new(acc);
209         if (!session) return;
210         POP3_SESSION(session->session)->pop_before_smtp = TRUE;
211                 
212         inc_dialog = inc_progress_dialog_create(FALSE);
213         inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
214                                                session);
215         /* FIXME: assumes to attach to first main window */
216         inc_dialog->mainwin = mainwin;
217         inc_progress_dialog_set_list(inc_dialog);
218
219         if (mainwin) {
220                 toolbar_main_set_sensitive(mainwin);
221                 main_window_set_menu_sensitive(mainwin);
222         }
223                         
224         inc_start(inc_dialog);
225 }
226
227 static gint inc_account_mail_real(MainWindow *mainwin, PrefsAccount *account)
228 {
229         IncProgressDialog *inc_dialog;
230         IncSession *session;
231         
232         switch (account->protocol) {
233         case A_IMAP4:
234         case A_NNTP:
235                 /* Melvin: bug [14]
236                  * FIXME: it should return foldeview_check_new() value.
237                  * TODO: do it when bug [19] is fixed (IMAP folder sets 
238                  * an incorrect new message count)
239                  */
240                 folderview_check_new(FOLDER(account->folder));
241                 return 0;
242         case A_POP3:
243         case A_APOP:
244                 session = inc_session_new(account);
245                 if (!session) return 0;
246                 
247                 inc_dialog = inc_progress_dialog_create(FALSE);
248                 inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
249                                                        session);
250                 inc_dialog->mainwin = mainwin;
251                 inc_progress_dialog_set_list(inc_dialog);
252
253                 if (mainwin) {
254                         toolbar_main_set_sensitive(mainwin);
255                         main_window_set_menu_sensitive(mainwin);
256                 }
257                         
258                 return inc_start(inc_dialog);
259
260         case A_LOCAL:
261                 return inc_spool_account(account);
262
263         default:
264                 break;
265         }
266         return 0;
267 }
268
269 gint inc_account_mail(MainWindow *mainwin, PrefsAccount *account)
270 {
271         gint new_msgs;
272
273         if (inc_lock_count) return 0;
274
275         if (prefs_common.work_offline && 
276             !inc_offline_should_override(
277                 _("Sylpheed-Claws needs network access in order "
278                   "to get mails.")))
279                 return 0;
280
281         inc_autocheck_timer_remove();
282         main_window_lock(mainwin);
283
284         new_msgs = inc_account_mail_real(mainwin, account);
285
286         inc_finished(mainwin, new_msgs > 0);
287         main_window_unlock(mainwin);
288         inc_autocheck_timer_set();
289
290         return new_msgs;
291 }
292
293 void inc_all_account_mail(MainWindow *mainwin, gboolean autocheck,
294                           gboolean notify)
295 {
296         GList *list, *queue_list = NULL;
297         IncProgressDialog *inc_dialog;
298         gint new_msgs = 0;
299         gint account_new_msgs = 0;
300         
301         if (prefs_common.work_offline && 
302             !inc_offline_should_override(
303                 _("Sylpheed-Claws needs network access in order "
304                   "to get mails.")))
305                 return;
306
307         if (inc_lock_count) return;
308
309         inc_autocheck_timer_remove();
310         main_window_lock(mainwin);
311
312         list = account_get_list();
313         if (!list) {
314                 inc_finished(mainwin, new_msgs > 0);
315                 main_window_unlock(mainwin);
316                 inc_notify_cmd(new_msgs, notify);
317                 inc_autocheck_timer_set();
318                 return;
319         }
320
321         /* check local folders */
322         account_new_msgs = inc_all_spool();
323         if (account_new_msgs > 0)
324                 new_msgs += account_new_msgs;
325
326         /* check IMAP4 / News folders */
327         for (list = account_get_list(); list != NULL; list = list->next) {
328                 PrefsAccount *account = list->data;
329                 if ((account->protocol == A_IMAP4 ||
330                      account->protocol == A_NNTP) && account->recv_at_getall) {
331                         new_msgs += folderview_check_new(FOLDER(account->folder));
332                 }
333         }
334
335         /* check POP3 accounts */
336         for (list = account_get_list(); list != NULL; list = list->next) {
337                 IncSession *session;
338                 PrefsAccount *account = list->data;
339
340                 if (account->recv_at_getall) {
341                         session = inc_session_new(account);
342                         if (session)
343                                 queue_list = g_list_append(queue_list, session);
344                 }
345         }
346
347         if (queue_list) {
348                 inc_dialog = inc_progress_dialog_create(autocheck);
349                 inc_dialog->queue_list = queue_list;
350                 inc_dialog->mainwin = mainwin;
351                 inc_progress_dialog_set_list(inc_dialog);
352
353                 toolbar_main_set_sensitive(mainwin);
354                 main_window_set_menu_sensitive(mainwin);
355                 new_msgs += inc_start(inc_dialog);
356         }
357
358         inc_finished(mainwin, new_msgs > 0);
359         main_window_unlock(mainwin);
360         inc_notify_cmd(new_msgs, notify);
361         inc_autocheck_timer_set();
362 }
363
364 static IncProgressDialog *inc_progress_dialog_create(gboolean autocheck)
365 {
366         IncProgressDialog *dialog;
367         ProgressDialog *progress;
368
369         dialog = g_new0(IncProgressDialog, 1);
370
371         progress = progress_dialog_create();
372         gtk_window_set_title(GTK_WINDOW(progress->window),
373                              _("Retrieving new messages"));
374         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
375                          G_CALLBACK(inc_cancel_cb), dialog);
376         g_signal_connect(G_OBJECT(progress->window), "delete_event",
377                          G_CALLBACK(inc_dialog_delete_cb), dialog);
378         /* manage_window_set_transient(GTK_WINDOW(progress->window)); */
379
380         progress_dialog_get_fraction(progress);
381
382         stock_pixbuf_gdk(progress->treeview, STOCK_PIXMAP_COMPLETE,
383                          &okpix);
384         stock_pixbuf_gdk(progress->treeview, STOCK_PIXMAP_CONTINUE,
385                          &currentpix);
386         stock_pixbuf_gdk(progress->treeview, STOCK_PIXMAP_ERROR,
387                          &errorpix);
388
389         if (prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS ||
390             (prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL &&
391              !autocheck)) {
392                 dialog->show_dialog = TRUE;
393                 gtk_widget_show_now(progress->window);
394         }
395
396         dialog->dialog = progress;
397         g_get_current_time(&dialog->progress_tv);
398         g_get_current_time(&dialog->folder_tv);
399         dialog->queue_list = NULL;
400         dialog->cur_row = 0;
401
402         inc_dialog_list = g_list_append(inc_dialog_list, dialog);
403
404         return dialog;
405 }
406
407 static void inc_progress_dialog_set_list(IncProgressDialog *inc_dialog)
408 {
409         GList *list;
410
411         for (list = inc_dialog->queue_list; list != NULL; list = list->next) {
412                 IncSession *session = list->data;
413                 Pop3Session *pop3_session = POP3_SESSION(session->session);
414
415                 session->data = inc_dialog;
416
417                 progress_dialog_list_set(inc_dialog->dialog,
418                                          -1, NULL,
419                                          pop3_session->ac_prefs->account_name,
420                                          _("Standby"));
421         }
422 }
423
424 static void inc_progress_dialog_clear(IncProgressDialog *inc_dialog)
425 {
426         progress_dialog_get_fraction(inc_dialog->dialog);
427         progress_dialog_set_label(inc_dialog->dialog, "");
428         if (inc_dialog->mainwin)
429                 main_window_progress_off(inc_dialog->mainwin);
430 }
431
432 static void inc_progress_dialog_destroy(IncProgressDialog *inc_dialog)
433 {
434         g_return_if_fail(inc_dialog != NULL);
435
436         inc_dialog_list = g_list_remove(inc_dialog_list, inc_dialog);
437
438         if (inc_dialog->mainwin)
439                 main_window_progress_off(inc_dialog->mainwin);
440         progress_dialog_destroy(inc_dialog->dialog);
441
442         g_free(inc_dialog);
443 }
444
445 static IncSession *inc_session_new(PrefsAccount *account)
446 {
447         IncSession *session;
448
449         g_return_val_if_fail(account != NULL, NULL);
450
451         if (account->protocol != A_POP3)
452                 return NULL;
453         if (!account->recv_server || !account->userid)
454                 return NULL;
455
456         session = g_new0(IncSession, 1);
457
458         session->session = pop3_session_new(account);
459         session->session->data = session;
460         POP3_SESSION(session->session)->drop_message = inc_drop_message;
461         session_set_recv_message_notify(session->session,
462                                         inc_recv_message, session);
463         session_set_recv_data_progressive_notify(session->session,
464                                                  inc_recv_data_progressive,
465                                                  session);
466         session_set_recv_data_notify(session->session,
467                                      inc_recv_data_finished, session);
468
469         return session;
470 }
471
472 static void inc_session_destroy(IncSession *session)
473 {
474         g_return_if_fail(session != NULL);
475
476         session_destroy(session->session);
477         g_free(session);
478 }
479
480 static gint inc_start(IncProgressDialog *inc_dialog)
481 {
482         IncSession *session;
483         GList *qlist;
484         Pop3Session *pop3_session;
485         IncState inc_state;
486         gint error_num = 0;
487         gint new_msgs = 0;
488         gchar *msg;
489         gchar *fin_msg;
490         FolderItem *processing, *inbox;
491         GSList *msglist, *msglist_element;
492         gboolean cancelled = FALSE;
493
494         qlist = inc_dialog->queue_list;
495         while (qlist != NULL) {
496                 GList *next = qlist->next;
497
498                 session = qlist->data;
499                 pop3_session = POP3_SESSION(session->session); 
500                 pop3_session->user = g_strdup(pop3_session->ac_prefs->userid);
501                 if (pop3_session->ac_prefs->passwd)
502                         pop3_session->pass =
503                                 g_strdup(pop3_session->ac_prefs->passwd);
504                 else if (pop3_session->ac_prefs->tmp_pass)
505                         pop3_session->pass =
506                                 g_strdup(pop3_session->ac_prefs->tmp_pass);
507                 else {
508                         gchar *pass;
509
510                         if (inc_dialog->show_dialog)
511                                 manage_window_focus_in
512                                         (inc_dialog->dialog->window,
513                                          NULL, NULL);
514
515                         pass = input_dialog_query_password
516                                 (pop3_session->ac_prefs->recv_server,
517                                  pop3_session->user);
518
519                         if (inc_dialog->show_dialog)
520                                 manage_window_focus_out
521                                         (inc_dialog->dialog->window,
522                                          NULL, NULL);
523
524                         if (pass) {
525                                 pop3_session->ac_prefs->tmp_pass =
526                                         g_strdup(pass);
527                                 pop3_session->pass = pass;
528                         }
529                 }
530
531                 qlist = next;
532         }
533
534 #define SET_PIXMAP_AND_TEXT(pix, str)                                      \
535 {                                                                          \
536         progress_dialog_list_set(inc_dialog->dialog,                       \
537                                  inc_dialog->cur_row,                      \
538                                  pix,                                      \
539                                  NULL,                                     \
540                                  str);                                     \
541 }
542
543         for (; inc_dialog->queue_list != NULL && !cancelled; inc_dialog->cur_row++) {
544                 session = inc_dialog->queue_list->data;
545                 pop3_session = POP3_SESSION(session->session);
546                 GSList *filtered, *unfiltered;
547
548                 if (pop3_session->pass == NULL) {
549                         SET_PIXMAP_AND_TEXT(okpix, _("Cancelled"));
550                         inc_session_destroy(session);
551                         inc_dialog->queue_list =
552                                 g_list_remove(inc_dialog->queue_list, session);
553                         continue;
554                 }
555
556                 inc_progress_dialog_clear(inc_dialog);
557                 progress_dialog_scroll_to_row(inc_dialog->dialog,
558                                               inc_dialog->cur_row);
559
560                 SET_PIXMAP_AND_TEXT(currentpix, _("Retrieving"));
561
562                 /* begin POP3 session */
563                 inc_state = inc_pop3_session_do(session);
564
565                 switch (inc_state) {
566                 case INC_SUCCESS:
567                         if (pop3_session->cur_total_num > 0)
568                                 msg = g_strdup_printf(
569                                         ngettext("Done (%d message (%s) received)",
570                                                  "Done (%d messages (%s) received)",
571                                          pop3_session->cur_total_num),
572                                          pop3_session->cur_total_num,
573                                          to_human_readable(pop3_session->cur_total_recv_bytes));
574                         else
575                                 msg = g_strdup_printf(_("Done (no new messages)"));
576                         SET_PIXMAP_AND_TEXT(okpix, msg);
577                         g_free(msg);
578                         break;
579                 case INC_CONNECT_ERROR:
580                         SET_PIXMAP_AND_TEXT(errorpix, _("Connection failed"));
581                         break;
582                 case INC_AUTH_FAILED:
583                         SET_PIXMAP_AND_TEXT(errorpix, _("Auth failed"));
584                         break;
585                 case INC_LOCKED:
586                         SET_PIXMAP_AND_TEXT(errorpix, _("Locked"));
587                         break;
588                 case INC_ERROR:
589                 case INC_NO_SPACE:
590                 case INC_IO_ERROR:
591                 case INC_SOCKET_ERROR:
592                 case INC_EOF:
593                         SET_PIXMAP_AND_TEXT(errorpix, _("Error"));
594                         break;
595                 case INC_TIMEOUT:
596                         SET_PIXMAP_AND_TEXT(errorpix, _("Timeout"));
597                         break;
598                 case INC_CANCEL:
599                         SET_PIXMAP_AND_TEXT(okpix, _("Cancelled"));
600                         if (!inc_dialog->show_dialog)
601                                 cancelled = TRUE;
602                         break;
603                 default:
604                         break;
605                 }
606                 
607                 if (pop3_session->error_val == PS_AUTHFAIL) {
608                         if(!prefs_common.no_recv_err_panel) {
609                                 if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
610                                     ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window))
611                                         manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
612                         }
613                 }
614
615                 /* CLAWS: perform filtering actions on dropped message */
616                 /* CLAWS: get default inbox (perhaps per account) */
617                 if (pop3_session->ac_prefs->inbox) {
618                         /* CLAWS: get destination folder / mailbox */
619                         inbox = folder_find_item_from_identifier(pop3_session->ac_prefs->inbox);
620                         if (!inbox)
621                                 inbox = folder_get_default_inbox();
622                 } else
623                         inbox = folder_get_default_inbox();
624
625                 /* get list of messages in processing */
626                 processing = folder_get_default_processing();
627                 folder_item_scan(processing);
628                 msglist = folder_item_get_msg_list(processing);
629
630                 /* process messages */
631                 folder_item_update_freeze();
632                 
633                 procmsg_msglist_filter(msglist, pop3_session->ac_prefs, 
634                                 &filtered, &unfiltered, 
635                                 pop3_session->ac_prefs->filter_on_recv);
636
637                 if (filtered != NULL)
638                         filtering_move_and_copy_msgs(filtered);
639                 if (unfiltered != NULL)
640                         folder_item_move_msgs(inbox, unfiltered);
641
642                 for(msglist_element = msglist; msglist_element != NULL; 
643                     msglist_element = msglist_element->next) {
644                         MsgInfo *msginfo = (MsgInfo *)msglist_element->data;
645                         procmsg_msginfo_free(msginfo);
646                 }
647                 folder_item_update_thaw();
648                 
649                 g_slist_free(msglist);
650                 g_slist_free(filtered);
651                 g_slist_free(unfiltered);
652
653                 statusbar_pop_all();
654
655                 new_msgs += pop3_session->cur_total_num;
656
657                 if (pop3_session->error_val == PS_AUTHFAIL &&
658                     pop3_session->ac_prefs->tmp_pass) {
659                         g_free(pop3_session->ac_prefs->tmp_pass);
660                         pop3_session->ac_prefs->tmp_pass = NULL;
661                 }
662
663                 pop3_write_uidl_list(pop3_session);
664
665                 if (inc_state != INC_SUCCESS && inc_state != INC_CANCEL) {
666                         error_num++;
667                         if (inc_dialog->show_dialog)
668                                 manage_window_focus_in
669                                         (inc_dialog->dialog->window,
670                                          NULL, NULL);
671                         inc_put_error(inc_state, pop3_session);
672                         if (inc_dialog->show_dialog)
673                                 manage_window_focus_out
674                                         (inc_dialog->dialog->window,
675                                          NULL, NULL);
676                         if (inc_state == INC_NO_SPACE ||
677                             inc_state == INC_IO_ERROR)
678                                 break;
679                 }
680                 folder_item_free_cache(processing, TRUE);
681
682                 inc_session_destroy(session);
683                 inc_dialog->queue_list =
684                         g_list_remove(inc_dialog->queue_list, session);
685         }
686
687 #undef SET_PIXMAP_AND_TEXT
688
689         if (new_msgs > 0)
690                 fin_msg = g_strdup_printf(ngettext("Finished (%d new message)",
691                                                    "Finished (%d new messages)",
692                                                    new_msgs), new_msgs);
693         else
694                 fin_msg = g_strdup_printf(_("Finished (no new messages)"));
695
696         progress_dialog_set_label(inc_dialog->dialog, fin_msg);
697
698         while (inc_dialog->queue_list != NULL) {
699                 session = inc_dialog->queue_list->data;
700                 inc_session_destroy(session);
701                 inc_dialog->queue_list =
702                         g_list_remove(inc_dialog->queue_list, session);
703         }
704
705         if (prefs_common.close_recv_dialog || !inc_dialog->show_dialog)
706                 inc_progress_dialog_destroy(inc_dialog);
707         else {
708                 gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window),
709                                      fin_msg);
710                 gtk_button_set_label(GTK_BUTTON(inc_dialog->dialog->cancel_btn),
711                                      GTK_STOCK_CLOSE);
712         }
713
714         g_free(fin_msg);
715
716         return new_msgs;
717 }
718
719 static IncState inc_pop3_session_do(IncSession *session)
720 {
721         Pop3Session *pop3_session = POP3_SESSION(session->session);
722         IncProgressDialog *inc_dialog = (IncProgressDialog *)session->data;
723         gchar *server;
724         gushort port;
725         gchar *buf;
726
727         debug_print("getting new messages of account %s...\n",
728                     pop3_session->ac_prefs->account_name);
729                     
730         pop3_session->ac_prefs->last_pop_login_time = time(NULL);
731
732         buf = g_strdup_printf(_("%s: Retrieving new messages"),
733                               pop3_session->ac_prefs->recv_server);
734         gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window), buf);
735         g_free(buf);
736
737         server = pop3_session->ac_prefs->recv_server;
738 #if USE_OPENSSL
739         port = pop3_session->ac_prefs->set_popport ?
740                 pop3_session->ac_prefs->popport :
741                 pop3_session->ac_prefs->ssl_pop == SSL_TUNNEL ? 995 : 110;
742         SESSION(pop3_session)->ssl_type = pop3_session->ac_prefs->ssl_pop;
743         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE)
744                 SESSION(pop3_session)->nonblocking =
745                         pop3_session->ac_prefs->use_nonblocking_ssl;
746 #else
747         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE) {
748                 if (alertpanel_full(_("Insecure connection"),
749                         _("This connection is configured to be secured "
750                           "using SSL, but SSL is not available in this "
751                           "build of Sylpheed-Claws. \n\n"
752                           "Do you want to continue connecting to this "
753                           "server? The communication would not be "
754                           "secure."),
755                           GTK_STOCK_CANCEL, _("Con_tinue connecting"), 
756                           NULL, FALSE, NULL, ALERT_WARNING,
757                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
758                         return INC_CANCEL;
759         }
760         port = pop3_session->ac_prefs->set_popport ?
761                 pop3_session->ac_prefs->popport : 110;
762 #endif
763
764         buf = g_strdup_printf(_("Connecting to POP3 server: %s..."), server);
765         statusbar_print_all("%s", buf);
766         log_message("%s\n", buf);
767
768         progress_dialog_set_label(inc_dialog->dialog, buf);
769         GTK_EVENTS_FLUSH();
770         g_free(buf);
771
772         session_set_timeout(SESSION(pop3_session),
773                             prefs_common.io_timeout_secs * 1000);
774         
775         if (session_connect(SESSION(pop3_session), server, port) < 0) {
776                 if(!prefs_common.no_recv_err_panel) {
777                         if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
778                             ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window)) {
779                                 manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
780                         }
781                         alertpanel_error(_("Can't connect to POP3 server: %s:%d"),
782                                          server, port);
783                         manage_window_focus_out(inc_dialog->dialog->window, NULL, NULL);
784                 } else {
785                         log_error(_("Can't connect to POP3 server: %s:%d\n"),
786                             server, port);
787                 }
788                 session->inc_state = INC_CONNECT_ERROR;
789                 statusbar_pop_all();
790                 return INC_CONNECT_ERROR;
791         }
792
793         while (session_is_connected(SESSION(pop3_session)) &&
794                session->inc_state != INC_CANCEL)
795                 gtk_main_iteration();
796
797         if (session->inc_state == INC_SUCCESS) {
798                 switch (pop3_session->error_val) {
799                 case PS_SUCCESS:
800                         switch (SESSION(pop3_session)->state) {
801                         case SESSION_ERROR:
802                                 if (pop3_session->state == POP3_READY)
803                                         session->inc_state = INC_CONNECT_ERROR;
804                                 else
805                                         session->inc_state = INC_ERROR;
806                                 break;
807                         case SESSION_EOF:
808                                 session->inc_state = INC_EOF;
809                                 break;
810                         case SESSION_TIMEOUT:
811                                 session->inc_state = INC_TIMEOUT;
812                                 break;
813                         default:
814                                 session->inc_state = INC_SUCCESS;
815                                 break;
816                         }
817                         break;
818                 case PS_AUTHFAIL:
819                         session->inc_state = INC_AUTH_FAILED;
820                         break;
821                 case PS_IOERR:
822                         session->inc_state = INC_IO_ERROR;
823                         break;
824                 case PS_SOCKET:
825                         session->inc_state = INC_SOCKET_ERROR;
826                         break;
827                 case PS_LOCKBUSY:
828                         session->inc_state = INC_LOCKED;
829                         break;
830                 default:
831                         session->inc_state = INC_ERROR;
832                         break;
833                 }
834         }
835
836         session_disconnect(SESSION(pop3_session));
837         statusbar_pop_all();
838
839         return session->inc_state;
840 }
841
842 static void inc_progress_dialog_update(IncProgressDialog *inc_dialog,
843                                        IncSession *inc_session)
844 {
845         inc_progress_dialog_set_label(inc_dialog, inc_session);
846         inc_progress_dialog_set_progress(inc_dialog, inc_session);
847 }
848
849 static void inc_progress_dialog_set_label(IncProgressDialog *inc_dialog,
850                                           IncSession *inc_session)
851 {
852         ProgressDialog *dialog = inc_dialog->dialog;
853         Pop3Session *session;
854
855         g_return_if_fail(inc_session != NULL);
856
857         session = POP3_SESSION(inc_session->session);
858
859         switch (session->state) {
860         case POP3_GREETING:
861                 break;
862         case POP3_GETAUTH_USER:
863         case POP3_GETAUTH_PASS:
864         case POP3_GETAUTH_APOP:
865                 progress_dialog_set_label(dialog, _("Authenticating..."));
866                 statusbar_pop_all();
867                 statusbar_print_all(_("Retrieving messages from %s (%s) ..."),
868                                     SESSION(session)->server,
869                                     session->ac_prefs->account_name);
870                 break;
871         case POP3_GETRANGE_STAT:
872                 progress_dialog_set_label
873                         (dialog, _("Getting the number of new messages (STAT)..."));
874                 break;
875         case POP3_GETRANGE_LAST:
876                 progress_dialog_set_label
877                         (dialog, _("Getting the number of new messages (LAST)..."));
878                 break;
879         case POP3_GETRANGE_UIDL:
880                 progress_dialog_set_label
881                         (dialog, _("Getting the number of new messages (UIDL)..."));
882                 break;
883         case POP3_GETSIZE_LIST:
884                 progress_dialog_set_label
885                         (dialog, _("Getting the size of messages (LIST)..."));
886                 break;
887         case POP3_RETR:
888         case POP3_RETR_RECV:
889         case POP3_DELETE:
890                 break;
891         case POP3_LOGOUT:
892                 progress_dialog_set_label(dialog, _("Quitting"));
893                 break;
894         default:
895                 break;
896         }
897 }
898
899 static void inc_progress_dialog_set_progress(IncProgressDialog *inc_dialog,
900                                              IncSession *inc_session)
901 {
902         gchar buf[MSGBUFSIZE];
903         Pop3Session *pop3_session = POP3_SESSION(inc_session->session);
904         gchar *total_size_str;
905         gint cur_total;
906         gint total;
907
908         if (!pop3_session->new_msg_exist) return;
909
910         cur_total = inc_session->cur_total_bytes;
911         total = pop3_session->total_bytes;
912         if (pop3_session->state == POP3_RETR ||
913             pop3_session->state == POP3_RETR_RECV ||
914             pop3_session->state == POP3_DELETE) {
915                 Xstrdup_a(total_size_str, to_human_readable(total), return);
916                 g_snprintf(buf, sizeof(buf),
917                            _("Retrieving message (%d / %d) (%s / %s)"),
918                            pop3_session->cur_msg, pop3_session->count,
919                            to_human_readable(cur_total), total_size_str);
920                 progress_dialog_set_label(inc_dialog->dialog, buf);
921         }
922
923         progress_dialog_set_fraction
924                 (inc_dialog->dialog, (total == 0) ? 0: (gfloat)cur_total / (gfloat)total);
925
926         g_snprintf(buf, sizeof(buf), "%d / %d",
927                    pop3_session->cur_msg, pop3_session->count);
928         gtk_progress_bar_set_text
929                 (GTK_PROGRESS_BAR(inc_dialog->mainwin->progressbar), buf);
930         gtk_progress_bar_set_fraction
931                 (GTK_PROGRESS_BAR(inc_dialog->mainwin->progressbar),
932                  (total == 0) ? 0 : (gfloat)cur_total / (gfloat)total);
933
934         if (pop3_session->cur_total_num > 0) {
935                 g_snprintf(buf, sizeof(buf),
936                            ngettext("Retrieving (%d message (%s) received)",
937                                     "Retrieving (%d messages (%s) received)",
938                                     pop3_session->cur_total_num),
939                            pop3_session->cur_total_num,
940                            to_human_readable
941                            (pop3_session->cur_total_recv_bytes));
942                 progress_dialog_list_set_status(inc_dialog->dialog,
943                                                 inc_dialog->cur_row,
944                                                 buf);
945         }
946 }
947
948 static void inc_progress_dialog_update_periodic(IncProgressDialog *inc_dialog,
949                                                 IncSession *inc_session)
950 {
951         GTimeVal tv_cur;
952         GTimeVal tv_result;
953         gint msec;
954
955         g_get_current_time(&tv_cur);
956
957         tv_result.tv_sec = tv_cur.tv_sec - inc_dialog->progress_tv.tv_sec;
958         tv_result.tv_usec = tv_cur.tv_usec - inc_dialog->progress_tv.tv_usec;
959         if (tv_result.tv_usec < 0) {
960                 tv_result.tv_sec--;
961                 tv_result.tv_usec += G_USEC_PER_SEC;
962         }
963
964         msec = tv_result.tv_sec * 1000 + tv_result.tv_usec / 1000;
965         if (msec > PROGRESS_UPDATE_INTERVAL) {
966                 inc_progress_dialog_update(inc_dialog, inc_session);
967                 inc_dialog->progress_tv.tv_sec = tv_cur.tv_sec;
968                 inc_dialog->progress_tv.tv_usec = tv_cur.tv_usec;
969         }
970 }
971
972 static gint inc_recv_data_progressive(Session *session, guint cur_len,
973                                       guint total_len, gpointer data)
974 {
975         IncSession *inc_session = (IncSession *)data;
976         Pop3Session *pop3_session = POP3_SESSION(session);
977         IncProgressDialog *inc_dialog;
978         gint cur_total;
979
980         g_return_val_if_fail(inc_session != NULL, -1);
981
982         if (pop3_session->state != POP3_RETR &&
983             pop3_session->state != POP3_RETR_RECV &&
984             pop3_session->state != POP3_DELETE &&
985             pop3_session->state != POP3_LOGOUT) return 0;
986
987         if (!pop3_session->new_msg_exist) return 0;
988
989         cur_total = pop3_session->cur_total_bytes + cur_len;
990         if (cur_total > pop3_session->total_bytes)
991                 cur_total = pop3_session->total_bytes;
992         inc_session->cur_total_bytes = cur_total;
993
994         inc_dialog = (IncProgressDialog *)inc_session->data;
995         inc_progress_dialog_update_periodic(inc_dialog, inc_session);
996
997         return 0;
998 }
999
1000 static gint inc_recv_data_finished(Session *session, guint len, gpointer data)
1001 {
1002         IncSession *inc_session = (IncSession *)data;
1003         IncProgressDialog *inc_dialog;
1004
1005         g_return_val_if_fail(inc_session != NULL, -1);
1006
1007         inc_dialog = (IncProgressDialog *)inc_session->data;
1008
1009         inc_recv_data_progressive(session, 0, 0, inc_session);
1010
1011         if (POP3_SESSION(session)->state == POP3_LOGOUT) {
1012                 inc_progress_dialog_update(inc_dialog, inc_session);
1013         }
1014
1015         return 0;
1016 }
1017
1018 static gint inc_recv_message(Session *session, const gchar *msg, gpointer data)
1019 {
1020         IncSession *inc_session = (IncSession *)data;
1021         IncProgressDialog *inc_dialog;
1022
1023         g_return_val_if_fail(inc_session != NULL, -1);
1024
1025         inc_dialog = (IncProgressDialog *)inc_session->data;
1026
1027         switch (POP3_SESSION(session)->state) {
1028         case POP3_GETAUTH_USER:
1029         case POP3_GETAUTH_PASS:
1030         case POP3_GETAUTH_APOP:
1031         case POP3_GETRANGE_STAT:
1032         case POP3_GETRANGE_LAST:
1033         case POP3_GETRANGE_UIDL:
1034         case POP3_GETSIZE_LIST:
1035                 inc_progress_dialog_update(inc_dialog, inc_session);
1036                 break;
1037         case POP3_RETR:
1038                 inc_recv_data_progressive(session, 0, 0, inc_session);
1039                 break;
1040         case POP3_LOGOUT:
1041                 inc_progress_dialog_update(inc_dialog, inc_session);
1042                 break;
1043         default:
1044                 break;
1045         }
1046
1047         return 0;
1048 }
1049
1050 static gint inc_drop_message(Pop3Session *session, const gchar *file)
1051 {
1052         FolderItem *inbox;
1053         FolderItem *dropfolder;
1054         IncSession *inc_session = (IncSession *)(SESSION(session)->data);
1055         gint msgnum;
1056
1057         g_return_val_if_fail(inc_session != NULL, -1);
1058
1059         if (session->ac_prefs->inbox) {
1060                 inbox = folder_find_item_from_identifier
1061                         (session->ac_prefs->inbox);
1062                 if (!inbox)
1063                         inbox = folder_get_default_inbox();
1064         } else
1065                 inbox = folder_get_default_inbox();
1066         if (!inbox) {
1067                 g_unlink(file);
1068                 return -1;
1069         }
1070
1071         /* CLAWS: claws uses a global .processing folder for the filtering. */
1072         dropfolder = folder_get_default_processing();
1073
1074         /* add msg file to drop folder */
1075         if ((msgnum = folder_item_add_msg(
1076                         dropfolder, file, NULL, TRUE)) < 0) {
1077                 g_unlink(file);
1078                 return -1;
1079         }
1080
1081         return 0;
1082 }
1083
1084 static void inc_put_error(IncState istate, Pop3Session *session)
1085 {
1086         gchar *log_msg = NULL;
1087         gchar *err_msg = NULL;
1088         gboolean fatal_error = FALSE;
1089
1090         switch (istate) {
1091         case INC_CONNECT_ERROR:
1092                 log_msg = _("Connection failed.");
1093                 fatal_error = TRUE;
1094                 if (prefs_common.no_recv_err_panel)
1095                         break;
1096                 err_msg = g_strdup_printf(_("Connection to %s:%d failed."),
1097                                           SESSION(session)->server, 
1098                                           SESSION(session)->port);
1099                 fatal_error = TRUE;
1100                 break;
1101         case INC_ERROR:
1102                 log_msg = _("Error occurred while processing mail.");
1103                 fatal_error = TRUE;
1104                 if (prefs_common.no_recv_err_panel)
1105                         break;
1106                 if (session->error_msg)
1107                         err_msg = g_strdup_printf
1108                                 (_("Error occurred while processing mail:\n%s"),
1109                                  session->error_msg);
1110                 else
1111                         err_msg = g_strdup(log_msg);
1112                 break;
1113         case INC_NO_SPACE:
1114                 log_msg = _("No disk space left.");
1115                 err_msg = g_strdup(log_msg);
1116                 fatal_error = TRUE;
1117                 break;
1118         case INC_IO_ERROR:
1119                 log_msg = _("Can't write file.");
1120                 err_msg = g_strdup(log_msg);
1121                 fatal_error = TRUE;
1122                 break;
1123         case INC_SOCKET_ERROR:
1124                 log_msg = _("Socket error.");
1125                 fatal_error = TRUE;
1126                 if (prefs_common.no_recv_err_panel)
1127                         break;
1128                 err_msg = g_strdup_printf(_("Socket error on connection to %s:%d."),
1129                                           SESSION(session)->server, 
1130                                           SESSION(session)->port);
1131                 break;
1132         case INC_EOF:
1133                 log_msg = _("Connection closed by the remote host.");
1134                 if (prefs_common.no_recv_err_panel)
1135                         break;
1136                 err_msg = g_strdup_printf(_("Connection to %s:%d closed by the remote host."), 
1137                                           SESSION(session)->server, 
1138                                           SESSION(session)->port);
1139                 break;
1140         case INC_LOCKED:
1141                 log_msg = _("Mailbox is locked.");
1142                 if (prefs_common.no_recv_err_panel)
1143                         break;
1144                 if (session->error_msg)
1145                         err_msg = g_strdup_printf(_("Mailbox is locked:\n%s"),
1146                                                   session->error_msg);
1147                 else
1148                         err_msg = g_strdup(log_msg);
1149                 break;
1150         case INC_AUTH_FAILED:
1151                 log_msg = _("Authentication failed.");
1152                 if (prefs_common.no_recv_err_panel)
1153                         break;
1154                 if (session->error_msg)
1155                         err_msg = g_strdup_printf
1156                                 (_("Authentication failed:\n%s"), session->error_msg);
1157                 else
1158                         err_msg = g_strdup(log_msg);
1159                 break;
1160         case INC_TIMEOUT:
1161                 log_msg = _("Session timed out.");
1162                 fatal_error = TRUE;
1163                 if (prefs_common.no_recv_err_panel)
1164                         break;
1165                 err_msg = g_strdup_printf(_("Connection to %s:%d timed out."), 
1166                                           SESSION(session)->server, 
1167                                           SESSION(session)->port);
1168                 break;
1169         default:
1170                 break;
1171         }
1172
1173         if (log_msg) {
1174                 if (fatal_error)
1175                         log_error("%s\n", log_msg);
1176                 else
1177                         log_warning("%s\n", log_msg);
1178         }
1179         if (err_msg) {
1180                 alertpanel_error_log(err_msg);
1181                 g_free(err_msg);
1182         }
1183 }
1184
1185 static void inc_cancel(IncProgressDialog *dialog)
1186 {
1187         IncSession *session;
1188
1189         g_return_if_fail(dialog != NULL);
1190
1191         if (dialog->queue_list == NULL) {
1192                 inc_progress_dialog_destroy(dialog);
1193                 return;
1194         }
1195
1196         session = dialog->queue_list->data;
1197
1198         session->inc_state = INC_CANCEL;
1199
1200         log_message(_("Incorporation cancelled\n"));
1201 }
1202
1203 gboolean inc_is_active(void)
1204 {
1205         return (inc_dialog_list != NULL);
1206 }
1207
1208 void inc_cancel_all(void)
1209 {
1210         GList *cur;
1211
1212         for (cur = inc_dialog_list; cur != NULL; cur = cur->next)
1213                 inc_cancel((IncProgressDialog *)cur->data);
1214 }
1215
1216 static void inc_cancel_cb(GtkWidget *widget, gpointer data)
1217 {
1218         inc_cancel((IncProgressDialog *)data);
1219 }
1220
1221 static gint inc_dialog_delete_cb(GtkWidget *widget, GdkEventAny *event,
1222                                  gpointer data)
1223 {
1224         IncProgressDialog *dialog = (IncProgressDialog *)data;
1225
1226         if (dialog->queue_list == NULL)
1227                 inc_progress_dialog_destroy(dialog);
1228
1229         return TRUE;
1230 }
1231
1232 static gint inc_spool_account(PrefsAccount *account)
1233 {
1234         FolderItem *inbox;
1235         gchar *mbox;
1236         gint result;
1237
1238         if (account->local_inbox) {
1239                 inbox = folder_find_item_from_identifier(account->local_inbox);
1240                 if (!inbox)
1241                         inbox = folder_get_default_inbox();
1242         } else
1243                 inbox = folder_get_default_inbox();
1244
1245         if (is_file_exist(account->local_mbox))
1246                 mbox = g_strdup(account->local_mbox);
1247         else if (is_dir_exist(account->local_mbox)) 
1248                 mbox = g_strconcat(account->local_mbox, G_DIR_SEPARATOR_S,
1249                                    g_get_user_name(), NULL);
1250         else {
1251                 debug_print("%s: local mailbox not found.\n", 
1252                             account->local_mbox);
1253                 return -1;
1254         }
1255         
1256         result = get_spool(inbox, mbox);
1257         g_free(mbox);
1258         
1259         statusbar_pop_all();
1260         
1261         return result;
1262 }
1263
1264 static gint inc_all_spool(void)
1265 {
1266         GList *list = NULL;
1267         gint new_msgs = 0;
1268         gint account_new_msgs = 0;
1269
1270         list = account_get_list();
1271         if (!list) return 0;
1272
1273         for (; list != NULL; list = list->next) {
1274                 PrefsAccount *account = list->data;
1275
1276                 if ((account->protocol == A_LOCAL) &&
1277                     (account->recv_at_getall)) {
1278                         account_new_msgs = inc_spool_account(account);
1279                         if (account_new_msgs > 0)
1280                                 new_msgs += account_new_msgs;
1281                 }
1282         }
1283
1284         return new_msgs;
1285 }
1286
1287 static gint get_spool(FolderItem *dest, const gchar *mbox)
1288 {
1289         gint msgs, size;
1290         gint lockfd;
1291         gchar tmp_mbox[MAXPATHLEN + 1];
1292
1293         g_return_val_if_fail(dest != NULL, -1);
1294         g_return_val_if_fail(mbox != NULL, -1);
1295
1296         if (!is_file_exist(mbox) || (size = get_file_size(mbox)) == 0) {
1297                 debug_print("%s: no messages in local mailbox.\n", mbox);
1298                 return 0;
1299         } else if (size < 0)
1300                 return -1;
1301
1302         if ((lockfd = lock_mbox(mbox, LOCK_FLOCK)) < 0)
1303                 return -1;
1304
1305         g_snprintf(tmp_mbox, sizeof(tmp_mbox), "%s%ctmpmbox.%08x",
1306                    get_tmp_dir(), G_DIR_SEPARATOR, (gint)mbox);
1307
1308         if (copy_mbox(mbox, tmp_mbox) < 0) {
1309                 unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1310                 return -1;
1311         }
1312
1313         debug_print("Getting new messages from %s into %s...\n",
1314                     mbox, dest->path);
1315
1316         msgs = proc_mbox(dest, tmp_mbox, TRUE);
1317
1318         g_unlink(tmp_mbox);
1319         if (msgs >= 0) empty_mbox(mbox);
1320         unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1321
1322         return msgs;
1323 }
1324
1325 void inc_lock(void)
1326 {
1327         inc_lock_count++;
1328 }
1329
1330 void inc_unlock(void)
1331 {
1332         if (inc_lock_count > 0)
1333                 inc_lock_count--;
1334 }
1335
1336 static guint autocheck_timer = 0;
1337 static gpointer autocheck_data = NULL;
1338
1339 static void inc_notify_cmd(gint new_msgs, gboolean notify)
1340 {
1341
1342         gchar *buf, *numpos, *ret_str;
1343         gssize by_read = 0, by_written = 0;
1344
1345         if (!(new_msgs && notify && prefs_common.newmail_notify_cmd &&
1346             *prefs_common.newmail_notify_cmd))
1347                      return;
1348         buf = g_strdup(prefs_common.newmail_notify_cmd);
1349         if ((numpos = strstr(buf, "%d")) != NULL) {
1350                 gchar *buf2;
1351
1352                 *numpos = '\0';
1353                 buf2 = g_strdup_printf("%s%d%s", buf, new_msgs, numpos + 2);
1354                 g_free(buf);
1355                 buf = buf2;
1356         }
1357
1358         ret_str = g_locale_from_utf8(buf, strlen(buf), &by_read, &by_written,
1359                                      NULL);
1360         if (ret_str && by_written) {
1361                 g_free(buf);
1362                 buf = ret_str;
1363         }
1364         debug_print("executing new mail notification command: %s\n", buf);
1365         execute_command_line(buf, TRUE);
1366
1367         g_free(buf);
1368 }
1369  
1370 void inc_autocheck_timer_init(MainWindow *mainwin)
1371 {
1372         autocheck_data = mainwin;
1373         inc_autocheck_timer_set();
1374 }
1375
1376 static void inc_autocheck_timer_set_interval(guint interval)
1377 {
1378         inc_autocheck_timer_remove();
1379         /* last test is to avoid re-enabling auto_check after modifying 
1380            the common preferences */
1381         if (prefs_common.autochk_newmail && autocheck_data
1382             && prefs_common.work_offline == FALSE) {
1383                 autocheck_timer = gtk_timeout_add
1384                         (interval, inc_autocheck_func, autocheck_data);
1385                 debug_print("added timer = %d\n", autocheck_timer);
1386         }
1387 }
1388
1389 void inc_autocheck_timer_set(void)
1390 {
1391         inc_autocheck_timer_set_interval(prefs_common.autochk_itv * 60000);
1392 }
1393
1394 void inc_autocheck_timer_remove(void)
1395 {
1396         if (autocheck_timer) {
1397                 debug_print("removed timer = %d\n", autocheck_timer);
1398                 gtk_timeout_remove(autocheck_timer);
1399                 autocheck_timer = 0;
1400         }
1401 }
1402
1403 static gint inc_autocheck_func(gpointer data)
1404 {
1405         MainWindow *mainwin = (MainWindow *)data;
1406
1407         if (inc_lock_count) {
1408                 debug_print("autocheck is locked.\n");
1409                 inc_autocheck_timer_set_interval(1000);
1410                 return FALSE;
1411         }
1412
1413         inc_all_account_mail(mainwin, TRUE, prefs_common.newmail_notify_auto);
1414
1415         return FALSE;
1416 }
1417
1418 gboolean inc_offline_should_override(const gchar *msg)
1419 {
1420         static time_t overridden_yes = 0;
1421         static time_t overridden_no  = 0;
1422         int length = 10; /* minutes */
1423         gint answer = G_ALERTDEFAULT;
1424         
1425         if (prefs_common.autochk_newmail)
1426                 length = prefs_common.autochk_itv; /* minutes */
1427
1428         if (prefs_common.work_offline) {
1429                 gchar *tmp = NULL;
1430                 
1431                 if (time(NULL) - overridden_yes < length * 60) /* seconds */
1432                          return TRUE;
1433                 else if (time(NULL) - overridden_no < 3) /* seconds */
1434                          return FALSE;
1435
1436                 tmp = g_strdup_printf(
1437                                 _("%s%sYou're working offline. Override for %d minutes?"),
1438                                 msg?msg:"", 
1439                                 msg?"\n\n":"",
1440                                 length);
1441
1442                 answer = alertpanel(_("Offline warning"), 
1443                                tmp,
1444                                GTK_STOCK_NO, "+" GTK_STOCK_YES, _("On_ly once"));
1445                 g_free(tmp);
1446                 if (answer == G_ALERTALTERNATE) {
1447                         overridden_yes = time(NULL);
1448                         return TRUE;
1449                 } else if (answer == G_ALERTDEFAULT) {
1450                         overridden_no  = time(NULL);
1451                         return FALSE;
1452                 } else {
1453                         overridden_yes = (time_t)0;
1454                         overridden_no  = (time_t)0;
1455                         return TRUE;
1456                 }
1457         }
1458         return TRUE;
1459 }