src/inc.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2016 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #  include "config.h"
  21 #include "claws-features.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gtk/gtk.h>
  29 #include <stdio.h>
  30 #include <unistd.h>
  31 #include <string.h>
  32
  33 #include "main.h"
  34 #include "inc.h"
  35 #include "mainwindow.h"
  36 #include "folderview.h"
  37 #include "summaryview.h"
  38 #include "prefs_common.h"
  39 #include "prefs_account.h"
  40 #include "account.h"
  41 #include "procmsg.h"
  42 #include "socket.h"
  43 #include "ssl.h"
  44 #include "pop.h"
  45 #include "recv.h"
  46 #include "mbox.h"
  47 #include "utils.h"
  48 #include "gtkutils.h"
  49 #include "statusbar.h"
  50 #include "msgcache.h"
  51 #include "manage_window.h"
  52 #include "stock_pixmap.h"
  53 #include "progressdialog.h"
  54 #include "inputdialog.h"
  55 #include "alertpanel.h"
  56 #include "folder.h"
  57 #include "filtering.h"
  58 #include "log.h"
  59 #include "hooks.h"
  60 #include "logwindow.h"
  61 #include "passwordstore.h"
  62
  63 extern SessionStats session_stats;
  64
  65 static GList *inc_dialog_list = NULL;
  66
  67 guint inc_lock_count = 0;
  68
  69 static GdkPixbuf *currentpix;
  70 static GdkPixbuf *errorpix;
  71 static GdkPixbuf *okpix;
  72
  73 #define MESSAGEBUFSIZE  8192
  74
  75 static void inc_update_stats(gint new_msgs);
  76 static void inc_finished                (MainWindow             *mainwin,
  77                                          gboolean                new_messages,
  78                                          gboolean                autocheck);
  79 static gint inc_account_mail_real       (MainWindow             *mainwin,
  80                                          PrefsAccount           *account);
  81
  82 static IncProgressDialog *inc_progress_dialog_create
  83                                         (gboolean                autocheck);
  84 static void inc_progress_dialog_set_list(IncProgressDialog      *inc_dialog);
  85 static void inc_progress_dialog_destroy (IncProgressDialog      *inc_dialog);
  86
  87 static IncSession *inc_session_new      (PrefsAccount           *account);
  88 static void inc_session_destroy         (IncSession             *session);
  89 static gint inc_start                   (IncProgressDialog      *inc_dialog);
  90 static IncState inc_pop3_session_do     (IncSession             *session);
  91
  92 static void inc_progress_dialog_update  (IncProgressDialog      *inc_dialog,
  93                                          IncSession             *inc_session);
  94
  95 static void inc_progress_dialog_set_label
  96                                         (IncProgressDialog      *inc_dialog,
  97                                          IncSession             *inc_session);
  98 static void inc_progress_dialog_set_progress
  99                                         (IncProgressDialog      *inc_dialog,
 100                                          IncSession             *inc_session);
 101
 102 static void inc_progress_dialog_update_periodic
 103                                         (IncProgressDialog      *inc_dialog,
 104                                          IncSession             *inc_session);
 105
 106 static gint inc_recv_data_progressive   (Session        *session,
 107                                          guint           cur_len,
 108                                          guint           total_len,
 109                                          gpointer        data);
 110 static gint inc_recv_data_finished      (Session        *session,
 111                                          guint           len,
 112                                          gpointer        data);
 113 static gint inc_recv_message            (Session        *session,
 114                                          const gchar    *msg,
 115                                          gpointer        data);
 116 static gint inc_drop_message            (Pop3Session    *session,
 117                                          const gchar    *file);
 118
 119 static void inc_put_error               (IncState        istate,
 120                                          Pop3Session    *session);
 121
 122 static void inc_showlog_cb              (GtkWidget      *widget,
 123                                          gpointer        data);
 124 static void inc_cancel_cb               (GtkWidget      *widget,
 125                                          gpointer        data);
 126 static gint inc_dialog_delete_cb        (GtkWidget      *widget,
 127                                          GdkEventAny    *event,
 128                                          gpointer        data);
 129
 130 static gint get_spool                   (FolderItem     *dest,
 131                                          const gchar    *mbox,
 132                                          PrefsAccount   *account);
 133
 134 static gint inc_spool_account(PrefsAccount *account);
 135 static gint inc_all_spool(void);
 136 static void inc_autocheck_timer_set_interval    (guint           interval);
 137 static gint inc_autocheck_func                  (gpointer        data);
 138
 139 static void inc_notify_cmd              (gint new_msgs,
 140                                          gboolean notify);
 141
 142 static void inc_update_stats(gint new_msgs)
 143 {
 144         /* update session statistics */
 145         session_stats.received += new_msgs;
 146 }
 147
 148 /**
 149  * inc_finished:
 150  * @mainwin: Main window.
 151  * @new_messages: TRUE if some messages have been received.
 152  *
 153  * Update the folder view and the summary view after receiving
 154  * messages.  If @new_messages is FALSE, this function avoids unneeded
 155  * updating.
 156  **/
 157 static void inc_finished(MainWindow *mainwin, gboolean new_messages, gboolean autocheck)
 158 {
 159         if (prefs_common.scan_all_after_inc)
 160                 folderview_check_new(NULL);
 161
 162         if (!autocheck && new_messages && prefs_common.open_inbox_on_inc) {
 163                 FolderItem *item = NULL;
 164
 165                 if (cur_account && cur_account->inbox)
 166                         item = folder_find_item_from_identifier(cur_account->inbox);
 167                 if (item == NULL && cur_account && cur_account->folder)
 168                         item = cur_account->folder->inbox;
 169                 if (item == NULL)
 170                         item = folder_get_default_inbox();
 171
 172                 folderview_unselect(mainwin->folderview);
 173                 folderview_select(mainwin->folderview, item);
 174         }
 175         statusbar_progress_all(0,0,0);
 176 }
 177
 178 void inc_mail(MainWindow *mainwin, gboolean notify)
 179 {
 180         gint new_msgs = 0;
 181         gint account_new_msgs = 0;
 182
 183         if (inc_lock_count) return;
 184
 185         if (prefs_common.work_offline &&
 186             !inc_offline_should_override(TRUE,
 187                 _("Claws Mail needs network access in order "
 188                   "to get mails.")))
 189                 return;
 190
 191         inc_lock();
 192         inc_autocheck_timer_remove();
 193         main_window_lock(mainwin);
 194
 195         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
 196                 /* external incorporating program */
 197                 if (execute_command_line(prefs_common.extinc_cmd, FALSE, NULL) < 0) {
 198                         main_window_unlock(mainwin);
 199                         inc_autocheck_timer_set();
 200                         inc_unlock();
 201                         return;
 202                 }
 203         } else {
 204                 account_new_msgs = inc_account_mail_real(mainwin, cur_account);
 205                 if (account_new_msgs > 0)
 206                         new_msgs += account_new_msgs;
 207         }
 208
 209         inc_update_stats(new_msgs);
 210         inc_finished(mainwin, new_msgs > 0, FALSE);
 211         main_window_unlock(mainwin);
 212         inc_notify_cmd(new_msgs, notify);
 213         inc_autocheck_timer_set();
 214         inc_unlock();
 215 }
 216
 217 void inc_pop_before_smtp(PrefsAccount *acc)
 218 {
 219         IncProgressDialog *inc_dialog;
 220         IncSession *session;
 221         MainWindow *mainwin;
 222
 223         mainwin = mainwindow_get_mainwindow();
 224
 225         session = inc_session_new(acc);
 226         if (!session) return;
 227         POP3_SESSION(session->session)->pop_before_smtp = TRUE;
 228
 229         inc_dialog = inc_progress_dialog_create(FALSE);
 230         inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
 231                                                session);
 232         /* FIXME: assumes to attach to first main window */
 233         inc_dialog->mainwin = mainwin;
 234         inc_progress_dialog_set_list(inc_dialog);
 235
 236         if (mainwin) {
 237                 toolbar_main_set_sensitive(mainwin);
 238                 main_window_set_menu_sensitive(mainwin);
 239         }
 240
 241         inc_start(inc_dialog);
 242 }
 243
 244 static gint inc_account_mail_real(MainWindow *mainwin, PrefsAccount *account)
 245 {
 246         IncProgressDialog *inc_dialog;
 247         IncSession *session;
 248
 249         switch (account->protocol) {
 250         case A_IMAP4:
 251         case A_NNTP:
 252                 /* Melvin: bug [14]
 253                  * FIXME: it should return foldeview_check_new() value.
 254                  * TODO: do it when bug [19] is fixed (IMAP folder sets
 255                  * an incorrect new message count)
 256                  */
 257                 folderview_check_new(FOLDER(account->folder));
 258                 return 0;
 259         case A_POP3:
 260                 session = inc_session_new(account);
 261                 if (!session) return 0;
 262
 263                 inc_dialog = inc_progress_dialog_create(FALSE);
 264                 inc_dialog->queue_list = g_list_append(inc_dialog->queue_list,
 265                                                        session);
 266                 inc_dialog->mainwin = mainwin;
 267                 inc_progress_dialog_set_list(inc_dialog);
 268
 269                 if (mainwin) {
 270                         toolbar_main_set_sensitive(mainwin);
 271                         main_window_set_menu_sensitive(mainwin);
 272                 }
 273
 274                 return inc_start(inc_dialog);
 275
 276         case A_LOCAL:
 277                 return inc_spool_account(account);
 278
 279         default:
 280                 break;
 281         }
 282         return 0;
 283 }
 284
 285 gint inc_account_mail(MainWindow *mainwin, PrefsAccount *account)
 286 {
 287         gint new_msgs;
 288
 289         if (inc_lock_count) return 0;
 290
 291         if (account->receive_in_progress) return 0;
 292
 293         if (prefs_common.work_offline &&
 294             !inc_offline_should_override(TRUE,
 295                 _("Claws Mail needs network access in order "
 296                   "to get mails.")))
 297                 return 0;
 298
 299         inc_autocheck_timer_remove();
 300         main_window_lock(mainwin);
 301
 302         new_msgs = inc_account_mail_real(mainwin, account);
 303
 304         inc_update_stats(new_msgs);
 305         inc_finished(mainwin, new_msgs > 0, FALSE);
 306         main_window_unlock(mainwin);
 307         inc_autocheck_timer_set();
 308
 309         return new_msgs;
 310 }
 311
 312 void inc_all_account_mail(MainWindow *mainwin, gboolean autocheck,
 313                           gboolean notify)
 314 {
 315         GList *list, *queue_list = NULL;
 316         IncProgressDialog *inc_dialog;
 317         gint new_msgs = 0;
 318         gint account_new_msgs = 0;
 319
 320         if (prefs_common.work_offline &&
 321             !inc_offline_should_override( (autocheck == FALSE),
 322                 _("Claws Mail needs network access in order "
 323                   "to get mails.")))
 324                 return;
 325
 326         if (inc_lock_count) return;
 327
 328         inc_autocheck_timer_remove();
 329         main_window_lock(mainwin);
 330
 331         list = account_get_list();
 332         if (!list) {
 333                 inc_update_stats(new_msgs);
 334                 inc_finished(mainwin, new_msgs > 0, autocheck);
 335                 main_window_unlock(mainwin);
 336                 inc_notify_cmd(new_msgs, notify);
 337                 inc_autocheck_timer_set();
 338                 return;
 339         }
 340
 341         if (prefs_common.use_extinc && prefs_common.extinc_cmd) {
 342                 /* external incorporating program */
 343                 if (execute_command_line(prefs_common.extinc_cmd, FALSE, NULL) < 0) {
 344                         log_error(LOG_PROTOCOL, _("%s failed\n"), prefs_common.extinc_cmd);
 345
 346                         main_window_unlock(mainwin);
 347                         inc_autocheck_timer_set();
 348                         return;
 349                 }
 350         }
 351
 352         /* check local folders */
 353         account_new_msgs = inc_all_spool();
 354         if (account_new_msgs > 0)
 355                 new_msgs += account_new_msgs;
 356
 357         /* check IMAP4 / News folders */
 358         for (list = account_get_list(); list != NULL; list = list->next) {
 359                 PrefsAccount *account = list->data;
 360                 if ((account->protocol == A_IMAP4 ||
 361                      account->protocol == A_NNTP) && account->recv_at_getall) {
 362                         new_msgs += folderview_check_new(FOLDER(account->folder));
 363                 }
 364         }
 365
 366         /* check POP3 accounts */
 367         for (list = account_get_list(); list != NULL; list = list->next) {
 368                 IncSession *session;
 369                 PrefsAccount *account = list->data;
 370
 371                 if (account->recv_at_getall) {
 372                         if (!(account->receive_in_progress)) {
 373                                 session = inc_session_new(account);
 374                                 if (session)
 375                                         queue_list = g_list_append(queue_list, session);
 376                         }
 377                 }
 378         }
 379
 380         if (queue_list) {
 381                 inc_dialog = inc_progress_dialog_create(autocheck);
 382                 inc_dialog->queue_list = queue_list;
 383                 inc_dialog->mainwin = mainwin;
 384                 inc_progress_dialog_set_list(inc_dialog);
 385
 386                 toolbar_main_set_sensitive(mainwin);
 387                 main_window_set_menu_sensitive(mainwin);
 388                 new_msgs += inc_start(inc_dialog);
 389         }
 390
 391         inc_update_stats(new_msgs);
 392         inc_finished(mainwin, new_msgs > 0, autocheck);
 393         main_window_unlock(mainwin);
 394         inc_notify_cmd(new_msgs, notify);
 395         inc_autocheck_timer_set();
 396 }
 397
 398 static void inc_progress_dialog_size_allocate_cb(GtkWidget *widget,
 399                                          GtkAllocation *allocation)
 400 {
 401         cm_return_if_fail(allocation != NULL);
 402
 403         prefs_common.receivewin_width = allocation->width;
 404         prefs_common.receivewin_height = allocation->height;
 405 }
 406
 407 static IncProgressDialog *inc_progress_dialog_create(gboolean autocheck)
 408 {
 409         IncProgressDialog *dialog;
 410         ProgressDialog *progress;
 411         static GdkGeometry geometry;
 412
 413         dialog = g_new0(IncProgressDialog, 1);
 414
 415         progress = progress_dialog_create();
 416         gtk_window_set_title(GTK_WINDOW(progress->window),
 417                              _("Retrieving new messages"));
 418         g_signal_connect(G_OBJECT(progress->showlog_btn), "clicked",
 419                          G_CALLBACK(inc_showlog_cb), dialog);
 420         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
 421                          G_CALLBACK(inc_cancel_cb), dialog);
 422         g_signal_connect(G_OBJECT(progress->window), "delete_event",
 423                          G_CALLBACK(inc_dialog_delete_cb), dialog);
 424         g_signal_connect(G_OBJECT(progress->window), "size_allocate",
 425                          G_CALLBACK(inc_progress_dialog_size_allocate_cb), NULL);
 426         /* manage_window_set_transient(GTK_WINDOW(progress->window)); */
 427
 428         progress_dialog_get_fraction(progress);
 429
 430         stock_pixbuf_gdk(STOCK_PIXMAP_COMPLETE, &okpix);
 431         stock_pixbuf_gdk(STOCK_PIXMAP_CONTINUE, &currentpix);
 432         stock_pixbuf_gdk(STOCK_PIXMAP_ERROR, &errorpix);
 433
 434         if (!geometry.min_height) {
 435                 geometry.min_width = 460;
 436                 geometry.min_height = 250;
 437         }
 438
 439         gtk_window_set_geometry_hints(GTK_WINDOW(progress->window), NULL, &geometry,
 440                                       GDK_HINT_MIN_SIZE);
 441         gtk_widget_set_size_request(progress->window, prefs_common.receivewin_width,
 442                                     prefs_common.receivewin_height);
 443
 444         if (prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS ||
 445             (prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL &&
 446              !autocheck)) {
 447                 dialog->show_dialog = TRUE;
 448                 gtk_widget_show_now(progress->window);
 449         }
 450
 451         dialog->dialog = progress;
 452         g_get_current_time(&dialog->progress_tv);
 453         g_get_current_time(&dialog->folder_tv);
 454         dialog->queue_list = NULL;
 455         dialog->cur_row = 0;
 456
 457         inc_dialog_list = g_list_append(inc_dialog_list, dialog);
 458
 459         return dialog;
 460 }
 461
 462 static void inc_progress_dialog_set_list(IncProgressDialog *inc_dialog)
 463 {
 464         GList *list;
 465
 466         for (list = inc_dialog->queue_list; list != NULL; list = list->next) {
 467                 IncSession *session = list->data;
 468                 Pop3Session *pop3_session = POP3_SESSION(session->session);
 469
 470                 session->data = inc_dialog;
 471
 472                 progress_dialog_list_set(inc_dialog->dialog,
 473                                          -1, NULL,
 474                                          pop3_session->ac_prefs->account_name,
 475                                          _("Standby"));
 476         }
 477 }
 478
 479 static void inc_progress_dialog_clear(IncProgressDialog *inc_dialog)
 480 {
 481         progress_dialog_get_fraction(inc_dialog->dialog);
 482         progress_dialog_set_label(inc_dialog->dialog, "");
 483         if (inc_dialog->mainwin)
 484                 main_window_progress_off(inc_dialog->mainwin);
 485 }
 486
 487 static void inc_progress_dialog_destroy(IncProgressDialog *inc_dialog)
 488 {
 489         cm_return_if_fail(inc_dialog != NULL);
 490
 491         inc_dialog_list = g_list_remove(inc_dialog_list, inc_dialog);
 492
 493         if (inc_dialog->mainwin)
 494                 main_window_progress_off(inc_dialog->mainwin);
 495         progress_dialog_destroy(inc_dialog->dialog);
 496
 497         g_free(inc_dialog);
 498 }
 499
 500 static IncSession *inc_session_new(PrefsAccount *account)
 501 {
 502         IncSession *session;
 503
 504         cm_return_val_if_fail(account != NULL, NULL);
 505
 506         if (account->protocol != A_POP3)
 507                 return NULL;
 508         if (!account->recv_server || !account->userid)
 509                 return NULL;
 510
 511         session = g_new0(IncSession, 1);
 512
 513         session->session = pop3_session_new(account);
 514         session->session->data = session;
 515         POP3_SESSION(session->session)->drop_message = inc_drop_message;
 516         session_set_recv_message_notify(session->session,
 517                                         inc_recv_message, session);
 518         session_set_recv_data_progressive_notify(session->session,
 519                                                  inc_recv_data_progressive,
 520                                                  session);
 521         session_set_recv_data_notify(session->session,
 522                                      inc_recv_data_finished, session);
 523
 524         return session;
 525 }
 526
 527 static void inc_session_destroy(IncSession *session)
 528 {
 529         cm_return_if_fail(session != NULL);
 530
 531         session_destroy(session->session);
 532         g_free(session);
 533 }
 534
 535 static gint pop3_get_port(Pop3Session *pop3_session)
 536 {
 537 #ifdef USE_GNUTLS
 538         return pop3_session->ac_prefs->set_popport ?
 539                 pop3_session->ac_prefs->popport :
 540                 pop3_session->ac_prefs->ssl_pop == SSL_TUNNEL ? 995 : 110;
 541 #else
 542         return pop3_session->ac_prefs->set_popport ?
 543                 pop3_session->ac_prefs->popport : 110;
 544 #endif
 545 }
 546
 547 static gint inc_start(IncProgressDialog *inc_dialog)
 548 {
 549         IncSession *session;
 550         GList *qlist;
 551         Pop3Session *pop3_session;
 552         IncState inc_state;
 553         gint error_num = 0;
 554         gint new_msgs = 0;
 555         gchar *msg;
 556         gchar *fin_msg;
 557         FolderItem *processing, *inbox;
 558         GSList *msglist, *msglist_element;
 559         gboolean cancelled = FALSE;
 560
 561         qlist = inc_dialog->queue_list;
 562         while (qlist != NULL) {
 563                 GList *next = qlist->next;
 564
 565                 session = qlist->data;
 566                 pop3_session = POP3_SESSION(session->session);
 567                 pop3_session->user = g_strdup(pop3_session->ac_prefs->userid);
 568
 569                 if (inc_dialog->show_dialog)
 570                         manage_window_focus_in
 571                                 (inc_dialog->dialog->window,
 572                                  NULL, NULL);
 573
 574                 if (password_get(pop3_session->user,
 575                                         pop3_session->ac_prefs->recv_server,
 576                                         "pop3", pop3_get_port(pop3_session),
 577                                         &(pop3_session->pass))) {
 578                         /* NOP */;
 579                 } else if ((pop3_session->pass = passwd_store_get_account(
 580                                                 pop3_session->ac_prefs->account_id, PWS_ACCOUNT_RECV)) == NULL) {
 581                         gchar *pass;
 582
 583                         pass = input_dialog_query_password_keep
 584                                 (pop3_session->ac_prefs->recv_server,
 585                                  pop3_session->user,
 586                                  &(pop3_session->ac_prefs->session_passwd));
 587
 588                         if (pass) {
 589                                 pop3_session->pass = pass;
 590                         }
 591                 }
 592
 593                 if (inc_dialog->show_dialog)
 594                         manage_window_focus_out
 595                                 (inc_dialog->dialog->window,
 596                                  NULL, NULL);
 597
 598                 qlist = next;
 599         }
 600
 601 #define SET_PIXMAP_AND_TEXT(pix, str)                                      \
 602 {                                                                          \
 603         progress_dialog_list_set(inc_dialog->dialog,                       \
 604                                  inc_dialog->cur_row,                      \
 605                                  pix,                                      \
 606                                  NULL,                                     \
 607                                  str);                                     \
 608 }
 609
 610         for (; inc_dialog->queue_list != NULL && !cancelled; inc_dialog->cur_row++) {
 611                 session = inc_dialog->queue_list->data;
 612                 pop3_session = POP3_SESSION(session->session);
 613                 GSList *filtered, *unfiltered;
 614
 615                 if (pop3_session->pass == NULL) {
 616                         SET_PIXMAP_AND_TEXT(okpix, _("Cancelled"));
 617                         inc_session_destroy(session);
 618                         inc_dialog->queue_list =
 619                                 g_list_remove(inc_dialog->queue_list, session);
 620                         continue;
 621                 }
 622
 623                 inc_progress_dialog_clear(inc_dialog);
 624                 progress_dialog_scroll_to_row(inc_dialog->dialog,
 625                                               inc_dialog->cur_row);
 626
 627                 SET_PIXMAP_AND_TEXT(currentpix, _("Retrieving"));
 628
 629                 /* begin POP3 session */
 630                 inc_state = inc_pop3_session_do(session);
 631
 632                 switch (inc_state) {
 633                 case INC_SUCCESS:
 634                         if (pop3_session->cur_total_num > 0)
 635                                 msg = g_strdup_printf(
 636                                         ngettext("Done (%d message (%s) received)",
 637                                                  "Done (%d messages (%s) received)",
 638                                          pop3_session->cur_total_num),
 639                                          pop3_session->cur_total_num,
 640                                          to_human_readable((goffset)pop3_session->cur_total_recv_bytes));
 641                         else
 642                                 msg = g_strdup_printf(_("Done (no new messages)"));
 643                         SET_PIXMAP_AND_TEXT(okpix, msg);
 644                         g_free(msg);
 645                         break;
 646                 case INC_CONNECT_ERROR:
 647                         SET_PIXMAP_AND_TEXT(errorpix, _("Connection failed"));
 648                         break;
 649                 case INC_AUTH_FAILED:
 650                         SET_PIXMAP_AND_TEXT(errorpix, _("Auth failed"));
 651                         if (pop3_session->ac_prefs->session_passwd) {
 652                                 g_free(pop3_session->ac_prefs->session_passwd);
 653                                 pop3_session->ac_prefs->session_passwd = NULL;
 654                         }
 655                         break;
 656                 case INC_LOCKED:
 657                         SET_PIXMAP_AND_TEXT(errorpix, _("Locked"));
 658                         break;
 659                 case INC_ERROR:
 660                 case INC_NO_SPACE:
 661                 case INC_IO_ERROR:
 662                 case INC_SOCKET_ERROR:
 663                 case INC_EOF:
 664                         SET_PIXMAP_AND_TEXT(errorpix, _("Error"));
 665                         break;
 666                 case INC_TIMEOUT:
 667                         SET_PIXMAP_AND_TEXT(errorpix, _("Timeout"));
 668                         break;
 669                 case INC_CANCEL:
 670                         SET_PIXMAP_AND_TEXT(okpix, _("Cancelled"));
 671                         if (!inc_dialog->show_dialog)
 672                                 cancelled = TRUE;
 673                         break;
 674                 default:
 675                         break;
 676                 }
 677
 678                 if (pop3_session->error_val == PS_AUTHFAIL) {
 679                         if(!prefs_common.no_recv_err_panel) {
 680                                 if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
 681                                     ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window))
 682                                         manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
 683                         }
 684                 }
 685
 686                 /* CLAWS: perform filtering actions on dropped message */
 687                 /* CLAWS: get default inbox (perhaps per account) */
 688                 if (pop3_session->ac_prefs->inbox) {
 689                         /* CLAWS: get destination folder / mailbox */
 690                         inbox = folder_find_item_from_identifier(pop3_session->ac_prefs->inbox);
 691                         if (!inbox)
 692                                 inbox = folder_get_default_inbox();
 693                 } else
 694                         inbox = folder_get_default_inbox();
 695
 696                 /* get list of messages in processing */
 697                 processing = folder_get_default_processing(pop3_session->ac_prefs->account_id);
 698                 folder_item_scan(processing);
 699                 msglist = folder_item_get_msg_list(processing);
 700
 701                 /* process messages */
 702                 folder_item_update_freeze();
 703
 704                 procmsg_msglist_filter(msglist, pop3_session->ac_prefs,
 705                                 &filtered, &unfiltered,
 706                                 pop3_session->ac_prefs->filter_on_recv);
 707
 708                 filtering_move_and_copy_msgs(msglist);
 709                 if (unfiltered != NULL)
 710                         folder_item_move_msgs(inbox, unfiltered);
 711
 712                 for(msglist_element = msglist; msglist_element != NULL;
 713                     msglist_element = msglist_element->next) {
 714                         procmsg_msginfo_free((MsgInfo**)&(msglist_element->data));
 715                 }
 716                 folder_item_update_thaw();
 717
 718                 g_slist_free(msglist);
 719                 g_slist_free(filtered);
 720                 g_slist_free(unfiltered);
 721
 722                 statusbar_pop_all();
 723
 724                 new_msgs += pop3_session->cur_total_num;
 725
 726                 pop3_write_uidl_list(pop3_session);
 727
 728                 if (inc_state != INC_SUCCESS && inc_state != INC_CANCEL) {
 729                         error_num++;
 730                         if (inc_dialog->show_dialog)
 731                                 manage_window_focus_in
 732                                         (inc_dialog->dialog->window,
 733                                          NULL, NULL);
 734                         inc_put_error(inc_state, pop3_session);
 735                         if (inc_dialog->show_dialog)
 736                                 manage_window_focus_out
 737                                         (inc_dialog->dialog->window,
 738                                          NULL, NULL);
 739                         if (inc_state == INC_NO_SPACE ||
 740                             inc_state == INC_IO_ERROR)
 741                                 break;
 742                 }
 743                 folder_item_free_cache(processing, TRUE);
 744
 745                 inc_session_destroy(session);
 746                 inc_dialog->queue_list =
 747                         g_list_remove(inc_dialog->queue_list, session);
 748         }
 749
 750 #undef SET_PIXMAP_AND_TEXT
 751
 752         if (new_msgs > 0)
 753                 fin_msg = g_strdup_printf(ngettext("Finished (%d new message)",
 754                                                    "Finished (%d new messages)",
 755                                                    new_msgs), new_msgs);
 756         else
 757                 fin_msg = g_strdup_printf(_("Finished (no new messages)"));
 758
 759         progress_dialog_set_label(inc_dialog->dialog, fin_msg);
 760
 761         while (inc_dialog->queue_list != NULL) {
 762                 session = inc_dialog->queue_list->data;
 763                 inc_session_destroy(session);
 764                 inc_dialog->queue_list =
 765                         g_list_remove(inc_dialog->queue_list, session);
 766         }
 767
 768         if (prefs_common.close_recv_dialog || !inc_dialog->show_dialog)
 769                 inc_progress_dialog_destroy(inc_dialog);
 770         else {
 771                 gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window),
 772                                      fin_msg);
 773                 gtk_button_set_label(GTK_BUTTON(inc_dialog->dialog->cancel_btn),
 774                                      GTK_STOCK_CLOSE);
 775         }
 776
 777         g_free(fin_msg);
 778
 779         return new_msgs;
 780 }
 781
 782 static IncState inc_pop3_session_do(IncSession *session)
 783 {
 784         Pop3Session *pop3_session = POP3_SESSION(session->session);
 785         IncProgressDialog *inc_dialog = (IncProgressDialog *)session->data;
 786         gchar *server;
 787         gchar *account_name;
 788         gushort port;
 789         gchar *buf;
 790
 791         debug_print("getting new messages of account %s...\n",
 792                     pop3_session->ac_prefs->account_name);
 793
 794         pop3_session->ac_prefs->last_pop_login_time = time(NULL);
 795
 796         buf = g_strdup_printf(_("%s: Retrieving new messages"),
 797                               pop3_session->ac_prefs->recv_server);
 798         gtk_window_set_title(GTK_WINDOW(inc_dialog->dialog->window), buf);
 799         g_free(buf);
 800
 801         server = pop3_session->ac_prefs->recv_server;
 802         account_name = pop3_session->ac_prefs->account_name;
 803         port = pop3_get_port(pop3_session);
 804
 805 #ifdef USE_GNUTLS
 806         SESSION(pop3_session)->ssl_type = pop3_session->ac_prefs->ssl_pop;
 807         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE)
 808                 SESSION(pop3_session)->nonblocking =
 809                         pop3_session->ac_prefs->use_nonblocking_ssl;
 810 #else
 811         if (pop3_session->ac_prefs->ssl_pop != SSL_NONE) {
 812                 if (alertpanel_full(_("Insecure connection"),
 813                         _("This connection is configured to be secured "
 814                           "using SSL/TLS, but SSL/TLS is not available "
 815                           "in this build of Claws Mail. \n\n"
 816                           "Do you want to continue connecting to this "
 817                           "server? The communication would not be "
 818                           "secure."),
 819                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 820                           NULL, FALSE, NULL, ALERT_WARNING,
 821                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 822                         return INC_CANCEL;
 823         }
 824 #endif
 825
 826         buf = g_strdup_printf(_("Account '%s': Connecting to POP3 server: %s:%d..."),
 827                                 account_name, server, port);
 828         statusbar_print_all("%s", buf);
 829         log_message(LOG_PROTOCOL, "%s\n", buf);
 830
 831         progress_dialog_set_label(inc_dialog->dialog, buf);
 832         GTK_EVENTS_FLUSH();
 833         g_free(buf);
 834
 835         session_set_timeout(SESSION(pop3_session),
 836                             prefs_common.io_timeout_secs * 1000);
 837
 838         if (session_connect(SESSION(pop3_session), server, port) < 0) {
 839                 if(!prefs_common.no_recv_err_panel) {
 840                         if((prefs_common.recv_dialog_mode == RECV_DIALOG_ALWAYS) ||
 841                             ((prefs_common.recv_dialog_mode == RECV_DIALOG_MANUAL) && focus_window)) {
 842                                 manage_window_focus_in(inc_dialog->dialog->window, NULL, NULL);
 843                         }
 844                         alertpanel_error(_("Can't connect to POP3 server: %s:%d"),
 845                                          server, port);
 846                         manage_window_focus_out(inc_dialog->dialog->window, NULL, NULL);
 847                 } else {
 848                         log_error(LOG_PROTOCOL, _("Can't connect to POP3 server: %s:%d\n"),
 849                             server, port);
 850                 }
 851                 session->inc_state = INC_CONNECT_ERROR;
 852                 statusbar_pop_all();
 853                 return INC_CONNECT_ERROR;
 854         }
 855
 856         while (session_is_running(SESSION(pop3_session)) &&
 857                session->inc_state != INC_CANCEL)
 858                 gtk_main_iteration();
 859
 860         if (session->inc_state == INC_SUCCESS) {
 861                 switch (pop3_session->error_val) {
 862                 case PS_SUCCESS:
 863                         switch (SESSION(pop3_session)->state) {
 864                         case SESSION_ERROR:
 865                                 if (pop3_session->state == POP3_READY)
 866                                         session->inc_state = INC_CONNECT_ERROR;
 867                                 else
 868                                         session->inc_state = INC_ERROR;
 869                                 break;
 870                         case SESSION_EOF:
 871                                 session->inc_state = INC_EOF;
 872                                 break;
 873                         case SESSION_TIMEOUT:
 874                                 session->inc_state = INC_TIMEOUT;
 875                                 break;
 876                         default:
 877                                 session->inc_state = INC_SUCCESS;
 878                                 break;
 879                         }
 880                         break;
 881                 case PS_AUTHFAIL:
 882                         session->inc_state = INC_AUTH_FAILED;
 883                         break;
 884                 case PS_IOERR:
 885                         session->inc_state = INC_IO_ERROR;
 886                         break;
 887                 case PS_SOCKET:
 888                         session->inc_state = INC_SOCKET_ERROR;
 889                         break;
 890                 case PS_LOCKBUSY:
 891                         session->inc_state = INC_LOCKED;
 892                         break;
 893                 default:
 894                         session->inc_state = INC_ERROR;
 895                         break;
 896                 }
 897         }
 898
 899         session_disconnect(SESSION(pop3_session));
 900         statusbar_pop_all();
 901
 902         return session->inc_state;
 903 }
 904
 905 static void inc_progress_dialog_update(IncProgressDialog *inc_dialog,
 906                                        IncSession *inc_session)
 907 {
 908         inc_progress_dialog_set_label(inc_dialog, inc_session);
 909         inc_progress_dialog_set_progress(inc_dialog, inc_session);
 910 }
 911
 912 static void inc_progress_dialog_set_label(IncProgressDialog *inc_dialog,
 913                                           IncSession *inc_session)
 914 {
 915         ProgressDialog *dialog = inc_dialog->dialog;
 916         Pop3Session *session;
 917
 918         cm_return_if_fail(inc_session != NULL);
 919
 920         session = POP3_SESSION(inc_session->session);
 921
 922         switch (session->state) {
 923         case POP3_GREETING:
 924                 break;
 925         case POP3_GETAUTH_USER:
 926         case POP3_GETAUTH_PASS:
 927         case POP3_GETAUTH_APOP:
 928                 progress_dialog_set_label(dialog, _("Authenticating..."));
 929                 statusbar_pop_all();
 930                 statusbar_print_all(_("Retrieving messages from %s (%s)..."),
 931                                     SESSION(session)->server,
 932                                     session->ac_prefs->account_name);
 933                 break;
 934         case POP3_GETRANGE_STAT:
 935                 progress_dialog_set_label
 936                         (dialog, _("Getting the number of new messages (STAT)..."));
 937                 break;
 938         case POP3_GETRANGE_LAST:
 939                 progress_dialog_set_label
 940                         (dialog, _("Getting the number of new messages (LAST)..."));
 941                 break;
 942         case POP3_GETRANGE_UIDL:
 943                 progress_dialog_set_label
 944                         (dialog, _("Getting the number of new messages (UIDL)..."));
 945                 break;
 946         case POP3_GETSIZE_LIST:
 947                 progress_dialog_set_label
 948                         (dialog, _("Getting the size of messages (LIST)..."));
 949                 break;
 950         case POP3_RETR:
 951         case POP3_RETR_RECV:
 952         case POP3_DELETE:
 953                 break;
 954         case POP3_LOGOUT:
 955                 progress_dialog_set_label(dialog, _("Quitting"));
 956                 break;
 957         default:
 958                 break;
 959         }
 960 }
 961
 962 static void inc_progress_dialog_set_progress(IncProgressDialog *inc_dialog,
 963                                              IncSession *inc_session)
 964 {
 965         gchar buf[MESSAGEBUFSIZE];
 966         Pop3Session *pop3_session = POP3_SESSION(inc_session->session);
 967         gchar *total_size_str;
 968         gint cur_total;
 969         gint total;
 970
 971         if (!pop3_session->new_msg_exist) return;
 972
 973         cur_total = inc_session->cur_total_bytes;
 974         total = pop3_session->total_bytes;
 975         if (pop3_session->state == POP3_RETR ||
 976             pop3_session->state == POP3_RETR_RECV ||
 977             pop3_session->state == POP3_DELETE) {
 978                 Xstrdup_a(total_size_str, to_human_readable((goffset)total), return);
 979                 g_snprintf(buf, sizeof(buf),
 980                            _("Retrieving message (%d / %d) (%s / %s)"),
 981                            pop3_session->cur_msg, pop3_session->count,
 982                            to_human_readable((goffset)cur_total), total_size_str);
 983                 progress_dialog_set_label(inc_dialog->dialog, buf);
 984         }
 985
 986         progress_dialog_set_fraction
 987                 (inc_dialog->dialog, (total == 0) ? 0: (gfloat)cur_total / (gfloat)total);
 988
 989         statusbar_progress_all(pop3_session->cur_msg, pop3_session->count, 1);
 990
 991         if (pop3_session->cur_total_num > 0) {
 992                 g_snprintf(buf, sizeof(buf),
 993                            ngettext("Retrieving (%d message (%s) received)",
 994                                     "Retrieving (%d messages (%s) received)",
 995                                     pop3_session->cur_total_num),
 996                            pop3_session->cur_total_num,
 997                            to_human_readable
 998                            ((goffset)pop3_session->cur_total_recv_bytes));
 999                 progress_dialog_list_set_status(inc_dialog->dialog,
1000                                                 inc_dialog->cur_row,
1001                                                 buf);
1002         }
1003 }
1004
1005 static void inc_progress_dialog_update_periodic(IncProgressDialog *inc_dialog,
1006                                                 IncSession *inc_session)
1007 {
1008         GTimeVal tv_cur;
1009         GTimeVal tv_result;
1010         gint msec;
1011
1012         g_get_current_time(&tv_cur);
1013
1014         tv_result.tv_sec = tv_cur.tv_sec - inc_dialog->progress_tv.tv_sec;
1015         tv_result.tv_usec = tv_cur.tv_usec - inc_dialog->progress_tv.tv_usec;
1016         if (tv_result.tv_usec < 0) {
1017                 tv_result.tv_sec--;
1018                 tv_result.tv_usec += G_USEC_PER_SEC;
1019         }
1020
1021         msec = tv_result.tv_sec * 1000 + tv_result.tv_usec / 1000;
1022         if (msec > PROGRESS_UPDATE_INTERVAL) {
1023                 inc_progress_dialog_update(inc_dialog, inc_session);
1024                 inc_dialog->progress_tv.tv_sec = tv_cur.tv_sec;
1025                 inc_dialog->progress_tv.tv_usec = tv_cur.tv_usec;
1026         }
1027 }
1028
1029 static gint inc_recv_data_progressive(Session *session, guint cur_len,
1030                                       guint total_len, gpointer data)
1031 {
1032         IncSession *inc_session = (IncSession *)data;
1033         Pop3Session *pop3_session = POP3_SESSION(session);
1034         IncProgressDialog *inc_dialog;
1035         gint cur_total;
1036
1037         cm_return_val_if_fail(inc_session != NULL, -1);
1038
1039         if (pop3_session->state != POP3_RETR &&
1040             pop3_session->state != POP3_RETR_RECV &&
1041             pop3_session->state != POP3_DELETE &&
1042             pop3_session->state != POP3_LOGOUT) return 0;
1043
1044         if (!pop3_session->new_msg_exist) return 0;
1045
1046         cur_total = pop3_session->cur_total_bytes + cur_len;
1047         if (cur_total > pop3_session->total_bytes)
1048                 cur_total = pop3_session->total_bytes;
1049         inc_session->cur_total_bytes = cur_total;
1050
1051         inc_dialog = (IncProgressDialog *)inc_session->data;
1052         inc_progress_dialog_update_periodic(inc_dialog, inc_session);
1053
1054         return 0;
1055 }
1056
1057 static gint inc_recv_data_finished(Session *session, guint len, gpointer data)
1058 {
1059         IncSession *inc_session = (IncSession *)data;
1060         IncProgressDialog *inc_dialog;
1061
1062         cm_return_val_if_fail(inc_session != NULL, -1);
1063
1064         inc_dialog = (IncProgressDialog *)inc_session->data;
1065
1066         inc_recv_data_progressive(session, 0, 0, inc_session);
1067
1068         if (POP3_SESSION(session)->state == POP3_LOGOUT) {
1069                 inc_progress_dialog_update(inc_dialog, inc_session);
1070         }
1071
1072         return 0;
1073 }
1074
1075 static gint inc_recv_message(Session *session, const gchar *msg, gpointer data)
1076 {
1077         IncSession *inc_session = (IncSession *)data;
1078         IncProgressDialog *inc_dialog;
1079
1080         cm_return_val_if_fail(inc_session != NULL, -1);
1081
1082         inc_dialog = (IncProgressDialog *)inc_session->data;
1083
1084         switch (POP3_SESSION(session)->state) {
1085         case POP3_GETAUTH_USER:
1086         case POP3_GETAUTH_PASS:
1087         case POP3_GETAUTH_APOP:
1088         case POP3_GETRANGE_STAT:
1089         case POP3_GETRANGE_LAST:
1090         case POP3_GETRANGE_UIDL:
1091         case POP3_GETSIZE_LIST:
1092                 inc_progress_dialog_update(inc_dialog, inc_session);
1093                 break;
1094         case POP3_RETR:
1095                 inc_recv_data_progressive(session, 0, 0, inc_session);
1096                 break;
1097         case POP3_LOGOUT:
1098                 inc_progress_dialog_update(inc_dialog, inc_session);
1099                 break;
1100         default:
1101                 break;
1102         }
1103
1104         return 0;
1105 }
1106
1107 static gint inc_drop_message(Pop3Session *session, const gchar *file)
1108 {
1109         FolderItem *inbox;
1110         FolderItem *dropfolder;
1111         IncSession *inc_session = (IncSession *)(SESSION(session)->data);
1112         gint msgnum;
1113
1114         cm_return_val_if_fail(inc_session != NULL, -1);
1115
1116         if (session->ac_prefs->inbox) {
1117                 inbox = folder_find_item_from_identifier
1118                         (session->ac_prefs->inbox);
1119                 if (!inbox)
1120                         inbox = folder_get_default_inbox();
1121         } else
1122                 inbox = folder_get_default_inbox();
1123         if (!inbox) {
1124                 claws_unlink(file);
1125                 return -1;
1126         }
1127
1128         /* CLAWS: claws uses a global .processing folder for the filtering. */
1129         dropfolder = folder_get_default_processing(session->ac_prefs->account_id);
1130
1131         /* add msg file to drop folder */
1132         if ((msgnum = folder_item_add_msg(
1133                         dropfolder, file, NULL, TRUE)) < 0) {
1134                 claws_unlink(file);
1135                 return -1;
1136         }
1137
1138         return 0;
1139 }
1140
1141 static void inc_put_error(IncState istate, Pop3Session *session)
1142 {
1143         gchar *log_msg = NULL;
1144         gchar *err_msg = NULL;
1145         gboolean fatal_error = FALSE;
1146
1147         switch (istate) {
1148         case INC_CONNECT_ERROR:
1149                 fatal_error = TRUE;
1150                 if (prefs_common.no_recv_err_panel)
1151                         break;
1152                 err_msg = g_strdup_printf(_("Connection to %s:%d failed."),
1153                                           SESSION(session)->server,
1154                                           SESSION(session)->port);
1155                 break;
1156         case INC_ERROR:
1157                 log_msg = _("Error occurred while processing mail.");
1158                 fatal_error = TRUE;
1159                 if (prefs_common.no_recv_err_panel)
1160                         break;
1161                 if (session->error_msg)
1162                         err_msg = g_strdup_printf
1163                                 (_("Error occurred while processing mail:\n%s"),
1164                                  session->error_msg);
1165                 else
1166                         err_msg = g_strdup(log_msg);
1167                 break;
1168         case INC_NO_SPACE:
1169                 log_msg = _("No disk space left.");
1170                 err_msg = g_strdup(log_msg);
1171                 fatal_error = TRUE;
1172                 break;
1173         case INC_IO_ERROR:
1174                 log_msg = _("Can't write file.");
1175                 err_msg = g_strdup(log_msg);
1176                 fatal_error = TRUE;
1177                 break;
1178         case INC_SOCKET_ERROR:
1179                 log_msg = _("Socket error.");
1180                 if (prefs_common.no_recv_err_panel)
1181                         break;
1182                 err_msg = g_strdup_printf(_("Socket error on connection to %s:%d."),
1183                                           SESSION(session)->server,
1184                                           SESSION(session)->port);
1185                 break;
1186         case INC_EOF:
1187                 log_msg = _("Connection closed by the remote host.");
1188                 if (prefs_common.no_recv_err_panel)
1189                         break;
1190                 err_msg = g_strdup_printf(_("Connection to %s:%d closed by the remote host."),
1191                                           SESSION(session)->server,
1192                                           SESSION(session)->port);
1193                 break;
1194         case INC_LOCKED:
1195                 log_msg = _("Mailbox is locked.");
1196                 if (prefs_common.no_recv_err_panel)
1197                         break;
1198                 if (session->error_msg)
1199                         err_msg = g_strdup_printf(_("Mailbox is locked:\n%s"),
1200                                                   session->error_msg);
1201                 else
1202                         err_msg = g_strdup(log_msg);
1203                 break;
1204         case INC_AUTH_FAILED:
1205                 log_msg = _("Authentication failed.");
1206                 fatal_error = TRUE;
1207                 if (prefs_common.no_recv_err_panel)
1208                         break;
1209                 if (session->error_msg)
1210                         err_msg = g_strdup_printf
1211                                 (_("Authentication failed:\n%s"), session->error_msg);
1212                 else
1213                         err_msg = g_strdup(log_msg);
1214                 break;
1215         case INC_TIMEOUT:
1216                 log_msg = _("Session timed out. You may be able to "
1217                             "recover by increasing the timeout value in "
1218                             "Preferences/Other/Miscellaneous.");
1219                 if (prefs_common.no_recv_err_panel)
1220                         break;
1221                 err_msg = g_strdup_printf(_("Connection to %s:%d timed out."),
1222                                           SESSION(session)->server,
1223                                           SESSION(session)->port);
1224                 break;
1225         default:
1226                 break;
1227         }
1228
1229         if (log_msg) {
1230                 if (fatal_error)
1231                         log_error(LOG_PROTOCOL, "%s\n", log_msg);
1232                 else
1233                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
1234         }
1235         if (prefs_common.no_recv_err_panel && fatal_error)
1236                 mainwindow_show_error();
1237
1238         if (err_msg) {
1239                 alertpanel_error_log("%s", err_msg);
1240                 g_free(err_msg);
1241         }
1242 }
1243
1244 static void inc_cancel(IncProgressDialog *dialog)
1245 {
1246         IncSession *session;
1247
1248         cm_return_if_fail(dialog != NULL);
1249
1250         if (dialog->queue_list == NULL) {
1251                 inc_progress_dialog_destroy(dialog);
1252                 return;
1253         }
1254
1255         session = dialog->queue_list->data;
1256
1257         session->inc_state = INC_CANCEL;
1258
1259         log_message(LOG_PROTOCOL, _("Incorporation cancelled\n"));
1260 }
1261
1262 gboolean inc_is_active(void)
1263 {
1264         return (inc_dialog_list != NULL);
1265 }
1266
1267 void inc_cancel_all(void)
1268 {
1269         GList *cur;
1270
1271         for (cur = inc_dialog_list; cur != NULL; cur = cur->next)
1272                 inc_cancel((IncProgressDialog *)cur->data);
1273 }
1274
1275 static void inc_showlog_cb(GtkWidget *widget, gpointer data)
1276 {
1277         MainWindow *mainwin = mainwindow_get_mainwindow();
1278
1279         log_window_show(mainwin->logwin);
1280 }
1281
1282 static void inc_cancel_cb(GtkWidget *widget, gpointer data)
1283 {
1284         inc_cancel((IncProgressDialog *)data);
1285 }
1286
1287 static gint inc_dialog_delete_cb(GtkWidget *widget, GdkEventAny *event,
1288                                  gpointer data)
1289 {
1290         IncProgressDialog *dialog = (IncProgressDialog *)data;
1291
1292         if (dialog->queue_list == NULL)
1293                 inc_progress_dialog_destroy(dialog);
1294
1295         return TRUE;
1296 }
1297
1298 static gint inc_spool_account(PrefsAccount *account)
1299 {
1300         FolderItem *inbox;
1301         gchar *mbox;
1302         gint result;
1303
1304         if (account->local_inbox) {
1305                 inbox = folder_find_item_from_identifier(account->local_inbox);
1306                 if (!inbox)
1307                         inbox = folder_get_default_inbox();
1308         } else
1309                 inbox = folder_get_default_inbox();
1310
1311         if (account->local_mbox) {
1312                 if (is_file_exist(account->local_mbox))
1313                         mbox = g_strdup(account->local_mbox);
1314                 else if (is_dir_exist(account->local_mbox))
1315                         mbox = g_strconcat(account->local_mbox, G_DIR_SEPARATOR_S,
1316                                            g_get_user_name(), NULL);
1317                 else {
1318                         debug_print("%s: local mailbox not found.\n",
1319                                     account->local_mbox);
1320                         return -1;
1321                 }
1322         } else {
1323                 debug_print("local mailbox not set in account info.\n");
1324                 return -1;
1325         }
1326
1327         result = get_spool(inbox, mbox, account);
1328         g_free(mbox);
1329
1330         statusbar_pop_all();
1331
1332         return result;
1333 }
1334
1335 static gint inc_all_spool(void)
1336 {
1337         GList *list = NULL;
1338         gint new_msgs = 0;
1339         gint account_new_msgs = 0;
1340
1341         list = account_get_list();
1342         if (!list) return 0;
1343
1344         for (; list != NULL; list = list->next) {
1345                 PrefsAccount *account = list->data;
1346
1347                 if ((account->protocol == A_LOCAL) &&
1348                     (account->recv_at_getall)) {
1349                         account_new_msgs = inc_spool_account(account);
1350                         if (account_new_msgs > 0)
1351                                 new_msgs += account_new_msgs;
1352                 }
1353         }
1354
1355         return new_msgs;
1356 }
1357
1358 static gint get_spool(FolderItem *dest, const gchar *mbox, PrefsAccount *account)
1359 {
1360         gint msgs, size;
1361         gint lockfd;
1362         gchar tmp_mbox[MAXPATHLEN + 1];
1363
1364         cm_return_val_if_fail(dest != NULL, -1);
1365         cm_return_val_if_fail(mbox != NULL, -1);
1366         cm_return_val_if_fail(account != NULL, -1);
1367
1368         if (!is_file_exist(mbox) || (size = get_file_size(mbox)) == 0) {
1369                 debug_print("%s: no messages in local mailbox.\n", mbox);
1370                 return 0;
1371         } else if (size < 0)
1372                 return -1;
1373
1374         if ((lockfd = lock_mbox(mbox, LOCK_FLOCK)) < 0)
1375                 return -1;
1376
1377         g_snprintf(tmp_mbox, sizeof(tmp_mbox), "%s%ctmpmbox.%p",
1378                    get_tmp_dir(), G_DIR_SEPARATOR, mbox);
1379
1380         if (copy_mbox(lockfd, tmp_mbox) < 0) {
1381                 unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1382                 return -1;
1383         }
1384
1385         debug_print("Getting new messages from %s into %s...\n",
1386                     mbox, dest->path);
1387
1388         msgs = proc_mbox(dest, tmp_mbox, account->filter_on_recv, account);
1389
1390         claws_unlink(tmp_mbox);
1391         if (msgs >= 0) empty_mbox(mbox);
1392         unlock_mbox(mbox, lockfd, LOCK_FLOCK);
1393
1394         return msgs;
1395 }
1396
1397 void inc_lock_real(void)
1398 {
1399         inc_lock_count++;
1400 }
1401
1402 void inc_unlock_real(void)
1403 {
1404         if (inc_lock_count > 0)
1405                 inc_lock_count--;
1406 }
1407
1408 static guint autocheck_timer = 0;
1409 static gpointer autocheck_data = NULL;
1410
1411 static void inc_notify_cmd(gint new_msgs, gboolean notify)
1412 {
1413         gchar *buf, *numpos, *ret_str;
1414         gssize by_read = 0, by_written = 0;
1415
1416         if (!(new_msgs && notify && prefs_common.newmail_notify_cmd &&
1417             *prefs_common.newmail_notify_cmd))
1418                      return;
1419
1420         buf = g_strdup(prefs_common.newmail_notify_cmd);
1421         if ((numpos = strstr(buf, "%d")) != NULL) {
1422                 gchar *buf2;
1423
1424                 *numpos = '\0';
1425                 buf2 = g_strdup_printf("%s%d%s", buf, new_msgs, numpos + 2);
1426                 g_free(buf);
1427                 buf = buf2;
1428         }
1429
1430         ret_str = g_locale_from_utf8(buf, strlen(buf), &by_read, &by_written,
1431                                      NULL);
1432         if (ret_str && by_written) {
1433                 g_free(buf);
1434                 buf = ret_str;
1435         }
1436         debug_print("executing new mail notification command: %s\n", buf);
1437         execute_command_line(buf, TRUE, NULL);
1438
1439         g_free(buf);
1440 }
1441
1442 void inc_autocheck_timer_init(MainWindow *mainwin)
1443 {
1444         autocheck_data = mainwin;
1445         inc_autocheck_timer_set();
1446 }
1447
1448 static void inc_autocheck_timer_set_interval(guint interval)
1449 {
1450         inc_autocheck_timer_remove();
1451         /* last test is to avoid re-enabling auto_check after modifying
1452            the common preferences */
1453         if (prefs_common.autochk_newmail && autocheck_data
1454             && prefs_common.work_offline == FALSE) {
1455                 if (interval % 1000 == 0)
1456                         autocheck_timer =
1457                                 g_timeout_add_seconds(interval/1000, inc_autocheck_func, autocheck_data);
1458                 else
1459                         autocheck_timer = g_timeout_add
1460                                 (interval, inc_autocheck_func, autocheck_data);
1461                 debug_print("added timer = %d\n", autocheck_timer);
1462         }
1463 }
1464
1465 void inc_autocheck_timer_set(void)
1466 {
1467         inc_autocheck_timer_set_interval(prefs_common.autochk_itv * 1000);
1468 }
1469
1470 void inc_autocheck_timer_remove(void)
1471 {
1472         if (autocheck_timer) {
1473                 debug_print("removed timer = %d\n", autocheck_timer);
1474                 g_source_remove(autocheck_timer);
1475                 autocheck_timer = 0;
1476         }
1477 }
1478
1479 static gint inc_autocheck_func(gpointer data)
1480 {
1481         MainWindow *mainwin = (MainWindow *)data;
1482
1483         if (inc_lock_count) {
1484                 debug_print("autocheck is locked.\n");
1485                 inc_autocheck_timer_set_interval(1000);
1486                 return FALSE;
1487         }
1488
1489         inc_all_account_mail(mainwin, TRUE, prefs_common.newmail_notify_auto);
1490
1491         return FALSE;
1492 }
1493
1494 gboolean inc_offline_should_override(gboolean force_ask, const gchar *msg)
1495 {
1496         static time_t overridden_yes = 0;
1497         static time_t overridden_no  = 0;
1498         int length = 10; /* minutes */
1499         gint answer = G_ALERTDEFAULT;
1500
1501 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1502         /* If no network connection is available, override is not possible */
1503         if(!networkmanager_is_online(NULL))
1504                 return FALSE;
1505 #endif
1506
1507         if (prefs_common.autochk_newmail)
1508                 length = prefs_common.autochk_itv; /* minutes */
1509
1510         if (force_ask) {
1511                 overridden_no = (time_t)0;
1512         }
1513
1514         if (prefs_common.work_offline) {
1515                 gchar *tmp = NULL;
1516
1517                 if (time(NULL) - overridden_yes < length * 60) /* seconds */
1518                          return TRUE;
1519                 else if (time(NULL) - overridden_no < length * 60) /* seconds */
1520                          return FALSE;
1521
1522                 if (!force_ask)
1523                         tmp = g_strdup_printf(
1524                                 _("%s%sYou're working offline. Override for %d minutes?"),
1525                                 msg?msg:"",
1526                                 msg?"\n\n":"",
1527                                 length);
1528                 else
1529                         tmp = g_strdup_printf(
1530                                 _("%s%sYou're working offline. Override?"),
1531                                 msg?msg:"",
1532                                 msg?"\n\n":"");
1533
1534                 answer = alertpanel(_("Offline warning"),
1535                                tmp,
1536                                GTK_STOCK_NO, GTK_STOCK_YES,
1537                                 !force_ask? _("On_ly once"):NULL, ALERTFOCUS_SECOND);
1538                 g_free(tmp);
1539                 if (answer == G_ALERTALTERNATE) {
1540                         overridden_yes = time(NULL);
1541                         return TRUE;
1542                 } else if (answer == G_ALERTDEFAULT) {
1543                         if (!force_ask)
1544                                 overridden_no  = time(NULL);
1545                         return FALSE;
1546                 } else {
1547                         overridden_yes = (time_t)0;
1548                         overridden_no  = (time_t)0;
1549                         return TRUE;
1550                 }
1551         }
1552         return TRUE;
1553 }