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                 log_warning(_("Can't connect to POP3 server: %s:%d\n"),
 777                             server, port);
 778                 if(!prefs_common.no_recv_err_panel) {
 779                         if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
 780                             ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window)) {
 781                                 manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
 782                         }
 783                         alertpanel_error(_("Can't connect to POP3 server: %s:%d"),
 784                                          server, port);
 785                         manage_window_focus_out(inc_dialog->dialog->window, NULL, NULL);
 786                 }
 787                 session->inc_state = INC_CONNECT_ERROR;
 788                 statusbar_pop_all();
 789                 return INC_CONNECT_ERROR;
 790         }
 791
 792         while (session_is_connected(SESSION(pop3_session)) &&
 793                session->inc_state != INC_CANCEL)
 794                 gtk_main_iteration();
 795
 796         if (session->inc_state == INC_SUCCESS) {
 797                 switch (pop3_session->error_val) {
 798                 case PS_SUCCESS:
 799                         switch (SESSION(pop3_session)->state) {
 800                         case SESSION_ERROR:
 801                                 if (pop3_session->state == POP3_READY)
 802                                         session->inc_state = INC_CONNECT_ERROR;
 803                                 else
 804                                         session->inc_state = INC_ERROR;
 805                                 break;
 806                         case SESSION_EOF:
 807                                 session->inc_state = INC_EOF;
 808                                 break;
 809                         case SESSION_TIMEOUT:
 810                                 session->inc_state = INC_TIMEOUT;
 811                                 break;
 812                         default:
 813                                 session->inc_state = INC_SUCCESS;
 814                                 break;
 815                         }
 816                         break;
 817                 case PS_AUTHFAIL:
 818                         session->inc_state = INC_AUTH_FAILED;
 819                         break;
 820                 case PS_IOERR:
 821                         session->inc_state = INC_IO_ERROR;
 822                         break;
 823                 case PS_SOCKET:
 824                         session->inc_state = INC_SOCKET_ERROR;
 825                         break;
 826                 case PS_LOCKBUSY:
 827                         session->inc_state = INC_LOCKED;
 828                         break;
 829                 default:
 830                         session->inc_state = INC_ERROR;
 831                         break;
 832                 }
 833         }
 834
 835         session_disconnect(SESSION(pop3_session));
 836         statusbar_pop_all();
 837
 838         return session->inc_state;
 839 }
 840
 841 static void inc_progress_dialog_update(IncProgressDialog *inc_dialog,
 842                                        IncSession *inc_session)
 843 {
 844         inc_progress_dialog_set_label(inc_dialog, inc_session);
 845         inc_progress_dialog_set_progress(inc_dialog, inc_session);
 846 }
 847
 848 static void inc_progress_dialog_set_label(IncProgressDialog *inc_dialog,
 849                                           IncSession *inc_session)
 850 {
 851         ProgressDialog *dialog = inc_dialog->dialog;
 852         Pop3Session *session;
 853
 854         g_return_if_fail(inc_session != NULL);
 855
 856         session = POP3_SESSION(inc_session->session);
 857
 858         switch (session->state) {
 859         case POP3_GREETING:
 860                 break;
 861         case POP3_GETAUTH_USER:
 862         case POP3_GETAUTH_PASS:
 863         case POP3_GETAUTH_APOP:
 864                 progress_dialog_set_label(dialog, _("Authenticating..."));
 865                 statusbar_pop_all();
 866                 statusbar_print_all(_("Retrieving messages from %s (%s) ..."),
 867                                     SESSION(session)->server,
 868                                     session->ac_prefs->account_name);
 869                 break;
 870         case POP3_GETRANGE_STAT:
 871                 progress_dialog_set_label
 872                         (dialog, _("Getting the number of new messages (STAT)..."));
 873                 break;
 874         case POP3_GETRANGE_LAST:
 875                 progress_dialog_set_label
 876                         (dialog, _("Getting the number of new messages (LAST)..."));
 877                 break;
 878         case POP3_GETRANGE_UIDL:
 879                 progress_dialog_set_label
 880                         (dialog, _("Getting the number of new messages (UIDL)..."));
 881                 break;
 882         case POP3_GETSIZE_LIST:
 883                 progress_dialog_set_label
 884                         (dialog, _("Getting the size of messages (LIST)..."));
 885                 break;
 886         case POP3_RETR:
 887         case POP3_RETR_RECV:
 888         case POP3_DELETE:
 889                 break;
 890         case POP3_LOGOUT:
 891                 progress_dialog_set_label(dialog, _("Quitting"));
 892                 break;
 893         default:
 894                 break;
 895         }
 896 }
 897
 898 static void inc_progress_dialog_set_progress(IncProgressDialog *inc_dialog,
 899                                              IncSession *inc_session)
 900 {
 901         gchar buf[MSGBUFSIZE];
 902         Pop3Session *pop3_session = POP3_SESSION(inc_session->session);
 903         gchar *total_size_str;
 904         gint cur_total;
 905         gint total;
 906
 907         if (!pop3_session->new_msg_exist) return;
 908
 909         cur_total = inc_session->cur_total_bytes;
 910         total = pop3_session->total_bytes;
 911         if (pop3_session->state == POP3_RETR ||
 912             pop3_session->state == POP3_RETR_RECV ||
 913             pop3_session->state == POP3_DELETE) {
 914                 Xstrdup_a(total_size_str, to_human_readable(total), return);
 915                 g_snprintf(buf, sizeof(buf),
 916                            _("Retrieving message (%d / %d) (%s / %s)"),
 917                            pop3_session->cur_msg, pop3_session->count,
 918                            to_human_readable(cur_total), total_size_str);
 919                 progress_dialog_set_label(inc_dialog->dialog, buf);
 920         }
 921
 922         progress_dialog_set_fraction
 923                 (inc_dialog->dialog, (total == 0) ? 0: (gfloat)cur_total / (gfloat)total);
 924
 925         g_snprintf(buf, sizeof(buf), "%d / %d",
 926                    pop3_session->cur_msg, pop3_session->count);
 927         gtk_progress_bar_set_text
 928                 (GTK_PROGRESS_BAR(inc_dialog->mainwin->progressbar), buf);
 929         gtk_progress_bar_set_fraction
 930                 (GTK_PROGRESS_BAR(inc_dialog->mainwin->progressbar),
 931                  (total == 0) ? 0 : (gfloat)cur_total / (gfloat)total);
 932
 933         if (pop3_session->cur_total_num > 0) {
 934                 g_snprintf(buf, sizeof(buf),
 935                            ngettext("Retrieving (%d message (%s) received)",
 936                                     "Retrieving (%d messages (%s) received)",
 937                                     pop3_session->cur_total_num),
 938                            pop3_session->cur_total_num,
 939                            to_human_readable
 940                            (pop3_session->cur_total_recv_bytes));
 941                 progress_dialog_list_set_status(inc_dialog->dialog,
 942                                                 inc_dialog->cur_row,
 943                                                 buf);
 944         }
 945 }
 946
 947 static void inc_progress_dialog_update_periodic(IncProgressDialog *inc_dialog,
 948                                                 IncSession *inc_session)
 949 {
 950         GTimeVal tv_cur;
 951         GTimeVal tv_result;
 952         gint msec;
 953
 954         g_get_current_time(&tv_cur);
 955
 956         tv_result.tv_sec = tv_cur.tv_sec - inc_dialog->progress_tv.tv_sec;
 957         tv_result.tv_usec = tv_cur.tv_usec - inc_dialog->progress_tv.tv_usec;
 958         if (tv_result.tv_usec < 0) {
 959                 tv_result.tv_sec--;
 960                 tv_result.tv_usec += G_USEC_PER_SEC;
 961         }
 962
 963         msec = tv_result.tv_sec * 1000 + tv_result.tv_usec / 1000;
 964         if (msec > PROGRESS_UPDATE_INTERVAL) {
 965                 inc_progress_dialog_update(inc_dialog, inc_session);
 966                 inc_dialog->progress_tv.tv_sec = tv_cur.tv_sec;
 967                 inc_dialog->progress_tv.tv_usec = tv_cur.tv_usec;
 968         }
 969 }
 970
 971 static gint inc_recv_data_progressive(Session *session, guint cur_len,
 972                                       guint total_len, gpointer data)
 973 {
 974         IncSession *inc_session = (IncSession *)data;
 975         Pop3Session *pop3_session = POP3_SESSION(session);
 976         IncProgressDialog *inc_dialog;
 977         gint cur_total;
 978
 979         g_return_val_if_fail(inc_session != NULL, -1);
 980
 981         if (pop3_session->state != POP3_RETR &&
 982             pop3_session->state != POP3_RETR_RECV &&
 983             pop3_session->state != POP3_DELETE &&
 984             pop3_session->state != POP3_LOGOUT) return 0;
 985
 986         if (!pop3_session->new_msg_exist) return 0;
 987
 988         cur_total = pop3_session->cur_total_bytes + cur_len;
 989         if (cur_total > pop3_session->total_bytes)
 990                 cur_total = pop3_session->total_bytes;
 991         inc_session->cur_total_bytes = cur_total;
 992
 993         inc_dialog = (IncProgressDialog *)inc_session->data;
 994         inc_progress_dialog_update_periodic(inc_dialog, inc_session);
 995
 996         return 0;
 997 }
 998
 999 static gint inc_recv_data_finished(Session *session, guint len, gpointer data)
1000 {
1001         IncSession *inc_session = (IncSession *)data;
1002         IncProgressDialog *inc_dialog;
1003
1004         g_return_val_if_fail(inc_session != NULL, -1);
1005
1006         inc_dialog = (IncProgressDialog *)inc_session->data;
1007
1008         inc_recv_data_progressive(session, 0, 0, inc_session);
1009
1010         if (POP3_SESSION(session)->state == POP3_LOGOUT) {
1011                 inc_progress_dialog_update(inc_dialog, inc_session);
1012         }
1013
1014         return 0;
1015 }
1016
1017 static gint inc_recv_message(Session *session, const gchar *msg, gpointer data)
1018 {
1019         IncSession *inc_session = (IncSession *)data;
1020         IncProgressDialog *inc_dialog;
1021
1022         g_return_val_if_fail(inc_session != NULL, -1);
1023
1024         inc_dialog = (IncProgressDialog *)inc_session->data;
1025
1026         switch (POP3_SESSION(session)->state) {
1027         case POP3_GETAUTH_USER:
1028         case POP3_GETAUTH_PASS:
1029         case POP3_GETAUTH_APOP:
1030         case POP3_GETRANGE_STAT:
1031         case POP3_GETRANGE_LAST:
1032         case POP3_GETRANGE_UIDL:
1033         case POP3_GETSIZE_LIST:
1034                 inc_progress_dialog_update(inc_dialog, inc_session);
1035                 break;
1036         case POP3_RETR:
1037                 inc_recv_data_progressive(session, 0, 0, inc_session);
1038                 break;
1039         case POP3_LOGOUT:
1040                 inc_progress_dialog_update(inc_dialog, inc_session);
1041                 break;
1042         default:
1043                 break;
1044         }
1045
1046         return 0;
1047 }
1048
1049 static gint inc_drop_message(Pop3Session *session, const gchar *file)
1050 {
1051         FolderItem *inbox;
1052         FolderItem *dropfolder;
1053         IncSession *inc_session = (IncSession *)(SESSION(session)->data);
1054         gint msgnum;
1055
1056         g_return_val_if_fail(inc_session != NULL, -1);
1057
1058         if (session->ac_prefs->inbox) {
1059                 inbox = folder_find_item_from_identifier
1060                         (session->ac_prefs->inbox);
1061                 if (!inbox)
1062                         inbox = folder_get_default_inbox();
1063         } else
1064                 inbox = folder_get_default_inbox();
1065         if (!inbox) {
1066                 g_unlink(file);
1067                 return -1;
1068         }
1069
1070         /* CLAWS: claws uses a global .processing folder for the filtering. */
1071         dropfolder = folder_get_default_processing();
1072
1073         /* add msg file to drop folder */
1074         if ((msgnum = folder_item_add_msg(
1075                         dropfolder, file, NULL, TRUE)) < 0) {
1076                 g_unlink(file);
1077                 return -1;
1078         }
1079
1080         return 0;
1081 }
1082
1083 static void inc_put_error(IncState istate, Pop3Session *session)
1084 {
1085         gchar *log_msg = NULL;
1086         gchar *err_msg = NULL;
1087         gboolean fatal_error = FALSE;
1088
1089         switch (istate) {
1090         case INC_CONNECT_ERROR:
1091                 log_msg = _("Connection failed.");
1092                 if (prefs_common.no_recv_err_panel)
1093                         break;
1094                 err_msg = g_strdup_printf(_("Connection to %s:%d failed."),
1095                                           SESSION(session)->server,
1096                                           SESSION(session)->port);
1097                 break;
1098         case INC_ERROR:
1099                 log_msg = _("Error occurred while processing mail.");
1100                 if (prefs_common.no_recv_err_panel)
1101                         break;
1102                 if (session->error_msg)
1103                         err_msg = g_strdup_printf
1104                                 (_("Error occurred while processing mail:\n%s"),
1105                                  session->error_msg);
1106                 else
1107                         err_msg = g_strdup(log_msg);
1108                 break;
1109         case INC_NO_SPACE:
1110                 log_msg = _("No disk space left.");
1111                 err_msg = g_strdup(log_msg);
1112                 fatal_error = TRUE;
1113                 break;
1114         case INC_IO_ERROR:
1115                 log_msg = _("Can't write file.");
1116                 err_msg = g_strdup(log_msg);
1117                 fatal_error = TRUE;
1118                 break;
1119         case INC_SOCKET_ERROR:
1120                 log_msg = _("Socket error.");
1121                 if (prefs_common.no_recv_err_panel)
1122                         break;
1123                 err_msg = g_strdup_printf(_("Socket error on connection to %s:%d."),
1124                                           SESSION(session)->server,
1125                                           SESSION(session)->port);
1126                 break;
1127         case INC_EOF:
1128                 log_msg = _("Connection closed by the remote host.");
1129                 if (prefs_common.no_recv_err_panel)
1130                         break;
1131                 err_msg = g_strdup_printf(_("Connection to %s:%d closed by the remote host."),
1132                                           SESSION(session)->server,
1133                                           SESSION(session)->port);
1134                 break;
1135         case INC_LOCKED:
1136                 log_msg = _("Mailbox is locked.");
1137                 if (prefs_common.no_recv_err_panel)
1138                         break;
1139                 if (session->error_msg)
1140                         err_msg = g_strdup_printf(_("Mailbox is locked:\n%s"),
1141                                                   session->error_msg);
1142                 else
1143                         err_msg = g_strdup(log_msg);
1144                 break;
1145         case INC_AUTH_FAILED:
1146                 log_msg = _("Authentication failed.");
1147                 if (prefs_common.no_recv_err_panel)
1148                         break;
1149                 if (session->error_msg)
1150                         err_msg = g_strdup_printf
1151                                 (_("Authentication failed:\n%s"), session->error_msg);
1152                 else
1153                         err_msg = g_strdup(log_msg);
1154                 break;
1155         case INC_TIMEOUT:
1156                 log_msg = _("Session timed out.");
1157                 if (prefs_common.no_recv_err_panel)
1158                         break;
1159                 err_msg = g_strdup_printf(_("Connection to %s:%d timed out."),
1160                                           SESSION(session)->server,
1161                                           SESSION(session)->port);
1162                 break;
1163         default:
1164                 break;
1165         }
1166
1167         if (log_msg) {
1168                 if (fatal_error)
1169                         log_error("%s\n", log_msg);
1170                 else
1171                         log_warning("%s\n", log_msg);
1172         }
1173         if (err_msg) {
1174                 alertpanel_error_log(err_msg);
1175                 g_free(err_msg);
1176         }
1177 }
1178
1179 static void inc_cancel(IncProgressDialog *dialog)
1180 {
1181         IncSession *session;
1182
1183         g_return_if_fail(dialog != NULL);
1184
1185         if (dialog->queue_list == NULL) {
1186                 inc_progress_dialog_destroy(dialog);
1187                 return;
1188         }
1189
1190         session = dialog->queue_list->data;
1191
1192         session->inc_state = INC_CANCEL;
1193
1194         log_message(_("Incorporation cancelled\n"));
1195 }
1196
1197 gboolean inc_is_active(void)
1198 {
1199         return (inc_dialog_list != NULL);
1200 }
1201
1202 void inc_cancel_all(void)
1203 {
1204         GList *cur;
1205
1206         for (cur = inc_dialog_list; cur != NULL; cur = cur->next)
1207                 inc_cancel((IncProgressDialog *)cur->data);
1208 }
1209
1210 static void inc_cancel_cb(GtkWidget *widget, gpointer data)
1211 {
1212         inc_cancel((IncProgressDialog *)data);
1213 }
1214
1215 static gint inc_dialog_delete_cb(GtkWidget *widget, GdkEventAny *event,
1216                                  gpointer data)
1217 {
1218         IncProgressDialog *dialog = (IncProgressDialog *)data;
1219
1220         if (dialog->queue_list == NULL)
1221                 inc_progress_dialog_destroy(dialog);
1222
1223         return TRUE;
1224 }
1225
1226 static gint inc_spool_account(PrefsAccount *account)
1227 {
1228         FolderItem *inbox;
1229         gchar *mbox;
1230         gint result;
1231
1232         if (account->local_inbox) {
1233                 inbox = folder_find_item_from_identifier(account->local_inbox);
1234                 if (!inbox)
1235                         inbox = folder_get_default_inbox();
1236         } else
1237                 inbox = folder_get_default_inbox();
1238
1239         if (is_file_exist(account->local_mbox))
1240                 mbox = g_strdup(account->local_mbox);
1241         else if (is_dir_exist(account->local_mbox))
1242                 mbox = g_strconcat(account->local_mbox, G_DIR_SEPARATOR_S,
1243                                    g_get_user_name(), NULL);
1244         else {
1245                 debug_print("%s: local mailbox not found.\n",
1246                             account->local_mbox);
1247                 return -1;
1248         }
1249
1250         result = get_spool(inbox, mbox);
1251         g_free(mbox);
1252
1253         statusbar_pop_all();
1254
1255         return result;
1256 }
1257
1258 static gint inc_all_spool(void)
1259 {
1260         GList *list = NULL;
1261         gint new_msgs = 0;
1262         gint account_new_msgs = 0;
1263
1264         list = account_get_list();
1265         if (!list) return 0;
1266
1267         for (; list != NULL; list = list->next) {
1268                 PrefsAccount *account = list->data;
1269
1270                 if ((account->protocol == A_LOCAL) &&
1271                     (account->recv_at_getall)) {
1272                         account_new_msgs = inc_spool_account(account);
1273                         if (account_new_msgs > 0)
1274                                 new_msgs += account_new_msgs;
1275                 }
1276         }
1277
1278         return new_msgs;
1279 }
1280
1281 static gint get_spool(FolderItem *dest, const gchar *mbox)
1282 {
1283         gint msgs, size;
1284         gint lockfd;
1285         gchar tmp_mbox[MAXPATHLEN + 1];
1286
1287         g_return_val_if_fail(dest != NULL, -1);
1288         g_return_val_if_fail(mbox != NULL, -1);
1289
1290         if (!is_file_exist(mbox) || (size = get_file_size(mbox)) == 0) {
1291                 debug_print("%s: no messages in local mailbox.\n", mbox);
1292                 return 0;
1293         } else if (size < 0)
1294                 return -1;
1295
1296         if ((lockfd = lock_mbox(mbox, LOCK_FLOCK)) < 0)
1297                 return -1;
1298
1299         g_snprintf(tmp_mbox, sizeof(tmp_mbox), "%s%ctmpmbox.%08x",
1300                    get_tmp_dir(), G_DIR_SEPARATOR, (gint)mbox);
1301
1302         if (copy_mbox(mbox, tmp_mbox) < 0) {
1303                 unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1304                 return -1;
1305         }
1306
1307         debug_print("Getting new messages from %s into %s...\n",
1308                     mbox, dest->path);
1309
1310         msgs = proc_mbox(dest, tmp_mbox, TRUE);
1311
1312         g_unlink(tmp_mbox);
1313         if (msgs >= 0) empty_mbox(mbox);
1314         unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1315
1316         return msgs;
1317 }
1318
1319 void inc_lock(void)
1320 {
1321         inc_lock_count++;
1322 }
1323
1324 void inc_unlock(void)
1325 {
1326         if (inc_lock_count > 0)
1327                 inc_lock_count--;
1328 }
1329
1330 static guint autocheck_timer = 0;
1331 static gpointer autocheck_data = NULL;
1332
1333 static void inc_notify_cmd(gint new_msgs, gboolean notify)
1334 {
1335
1336         gchar *buf, *numpos, *ret_str;
1337         gssize by_read = 0, by_written = 0;
1338
1339         if (!(new_msgs && notify && prefs_common.newmail_notify_cmd &&
1340             *prefs_common.newmail_notify_cmd))
1341                      return;
1342         buf = g_strdup(prefs_common.newmail_notify_cmd);
1343         if ((numpos = strstr(buf, "%d")) != NULL) {
1344                 gchar *buf2;
1345
1346                 *numpos = '\0';
1347                 buf2 = g_strdup_printf("%s%d%s", buf, new_msgs, numpos + 2);
1348                 g_free(buf);
1349                 buf = buf2;
1350         }
1351
1352         ret_str = g_locale_from_utf8(buf, strlen(buf), &by_read, &by_written,
1353                                      NULL);
1354         if (ret_str && by_written) {
1355                 g_free(buf);
1356                 buf = ret_str;
1357         }
1358         debug_print("executing new mail notification command: %s\n", buf);
1359         execute_command_line(buf, TRUE);
1360
1361         g_free(buf);
1362 }
1363
1364 void inc_autocheck_timer_init(MainWindow *mainwin)
1365 {
1366         autocheck_data = mainwin;
1367         inc_autocheck_timer_set();
1368 }
1369
1370 static void inc_autocheck_timer_set_interval(guint interval)
1371 {
1372         inc_autocheck_timer_remove();
1373         /* last test is to avoid re-enabling auto_check after modifying
1374            the common preferences */
1375         if (prefs_common.autochk_newmail && autocheck_data
1376             && prefs_common.work_offline == FALSE) {
1377                 autocheck_timer = gtk_timeout_add
1378                         (interval, inc_autocheck_func, autocheck_data);
1379                 debug_print("added timer = %d\n", autocheck_timer);
1380         }
1381 }
1382
1383 void inc_autocheck_timer_set(void)
1384 {
1385         inc_autocheck_timer_set_interval(prefs_common.autochk_itv * 60000);
1386 }
1387
1388 void inc_autocheck_timer_remove(void)
1389 {
1390         if (autocheck_timer) {
1391                 debug_print("removed timer = %d\n", autocheck_timer);
1392                 gtk_timeout_remove(autocheck_timer);
1393                 autocheck_timer = 0;
1394         }
1395 }
1396
1397 static gint inc_autocheck_func(gpointer data)
1398 {
1399         MainWindow *mainwin = (MainWindow *)data;
1400
1401         if (inc_lock_count) {
1402                 debug_print("autocheck is locked.\n");
1403                 inc_autocheck_timer_set_interval(1000);
1404                 return FALSE;
1405         }
1406
1407         inc_all_account_mail(mainwin, TRUE, prefs_common.newmail_notify_auto);
1408
1409         return FALSE;
1410 }
1411
1412 gboolean inc_offline_should_override(const gchar *msg)
1413 {
1414         static time_t overridden_yes = 0;
1415         static time_t overridden_no  = 0;
1416         int length = 10; /* minutes */
1417         gint answer = G_ALERTDEFAULT;
1418
1419         if (prefs_common.autochk_newmail)
1420                 length = prefs_common.autochk_itv; /* minutes */
1421
1422         if (prefs_common.work_offline) {
1423                 gchar *tmp = NULL;
1424
1425                 if (time(NULL) - overridden_yes < length * 60) /* seconds */
1426                          return TRUE;
1427                 else if (time(NULL) - overridden_no < 3) /* seconds */
1428                          return FALSE;
1429
1430                 tmp = g_strdup_printf(
1431                                 _("%s%sYou're working offline. Override for %d minutes?"),
1432                                 msg?msg:"",
1433                                 msg?"\n\n":"",
1434                                 length);
1435
1436                 answer = alertpanel(_("Offline warning"),
1437                                tmp,
1438                                GTK_STOCK_NO, "+" GTK_STOCK_YES, _("On_ly once"));
1439                 g_free(tmp);
1440                 if (answer == G_ALERTALTERNATE) {
1441                         overridden_yes = time(NULL);
1442                         return TRUE;
1443                 } else if (answer == G_ALERTDEFAULT) {
1444                         overridden_no  = time(NULL);
1445                         return FALSE;
1446                 } else {
1447                         overridden_yes = (time_t)0;
1448                         overridden_no  = (time_t)0;
1449                         return TRUE;
1450                 }
1451         }
1452         return TRUE;
1453 }