src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 <stdio.h>
  28 #include <string.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <unistd.h>
  32 #include <stdlib.h>
  33
  34 #include "intl.h"
  35 #include "folder.h"
  36 #include "session.h"
  37 #include "imap.h"
  38 #include "news.h"
  39 #include "mh.h"
  40 #include "mbox_folder.h"
  41 #include "utils.h"
  42 #include "xml.h"
  43 #include "codeconv.h"
  44 #include "prefs_gtk.h"
  45 #include "account.h"
  46 #include "filtering.h"
  47 #include "scoring.h"
  48 #include "procheader.h"
  49 #include "hooks.h"
  50 #include "log.h"
  51 #include "folder_item_prefs.h"
  52
  53 /* Dependecies to be removed ?! */
  54 #include "prefs_common.h"
  55 #include "prefs_account.h"
  56
  57 static GList *folder_list = NULL;
  58
  59 static void folder_init         (Folder         *folder,
  60                                  const gchar    *name);
  61
  62 static gboolean folder_read_folder_func (GNode          *node,
  63                                          gpointer        data);
  64 static gchar *folder_get_list_path      (void);
  65 static void folder_write_list_recursive (GNode          *node,
  66                                          gpointer        data);
  67 static void folder_update_op_count_rec  (GNode          *node);
  68
  69
  70 static void folder_get_persist_prefs_recursive
  71                                         (GNode *node, GHashTable *pptable);
  72 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  73 void folder_item_read_cache             (FolderItem *item);
  74 void folder_item_free_cache             (FolderItem *item);
  75 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  76
  77 static GSList *classlist;
  78
  79 void folder_system_init(void)
  80 {
  81         folder_register_class(mh_get_class());
  82         folder_register_class(imap_get_class());
  83         folder_register_class(news_get_class());
  84         folder_register_class(mbox_get_class());
  85 }
  86
  87 GSList *folder_get_class_list(void)
  88 {
  89         return classlist;
  90 }
  91
  92 void folder_register_class(FolderClass *klass)
  93 {
  94         debug_print("registering folder class %s\n", klass->idstr);
  95         classlist = g_slist_append(classlist, klass);
  96 }
  97
  98 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
  99 {
 100         Folder *folder = NULL;
 101         FolderItem *item;
 102
 103         g_return_val_if_fail(klass != NULL, NULL);
 104
 105         name = name ? name : path;
 106         folder = klass->new_folder(name, path);
 107
 108         /* Create root folder item */
 109         item = folder_item_new(folder, name, NULL);
 110         item->folder = folder;
 111         folder->node = item->node = g_node_new(item);
 112         folder->data = NULL;
 113
 114         return folder;
 115 }
 116
 117 static void folder_init(Folder *folder, const gchar *name)
 118 {
 119         g_return_if_fail(folder != NULL);
 120
 121         folder_set_name(folder, name);
 122
 123         /* Init folder data */
 124         folder->account = NULL;
 125         folder->inbox = NULL;
 126         folder->outbox = NULL;
 127         folder->draft = NULL;
 128         folder->queue = NULL;
 129         folder->trash = NULL;
 130 }
 131
 132 void folder_local_folder_init(Folder *folder, const gchar *name,
 133                               const gchar *path)
 134 {
 135         folder_init(folder, name);
 136         LOCAL_FOLDER(folder)->rootpath = g_strdup(path);
 137 }
 138
 139 void folder_remote_folder_init(Folder *folder, const gchar *name,
 140                                const gchar *path)
 141 {
 142         folder_init(folder, name);
 143         REMOTE_FOLDER(folder)->session = NULL;
 144 }
 145
 146 void folder_destroy(Folder *folder)
 147 {
 148         g_return_if_fail(folder != NULL);
 149         g_return_if_fail(folder->klass->destroy_folder != NULL);
 150
 151         folder_list = g_list_remove(folder_list, folder);
 152
 153         folder_tree_destroy(folder);
 154
 155         folder->klass->destroy_folder(folder);
 156
 157         g_free(folder->name);
 158         g_free(folder);
 159 }
 160
 161 void folder_local_folder_destroy(LocalFolder *lfolder)
 162 {
 163         g_return_if_fail(lfolder != NULL);
 164
 165         g_free(lfolder->rootpath);
 166 }
 167
 168 void folder_remote_folder_destroy(RemoteFolder *rfolder)
 169 {
 170         g_return_if_fail(rfolder != NULL);
 171
 172         if (rfolder->session)
 173                 session_destroy(rfolder->session);
 174 }
 175
 176 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 177 {
 178         FolderItem *item = NULL;
 179
 180         if (folder->klass->item_new) {
 181                 item = folder->klass->item_new(folder);
 182         } else {
 183                 item = g_new0(FolderItem, 1);
 184         }
 185
 186         g_return_val_if_fail(item != NULL, NULL);
 187
 188         item->stype = F_NORMAL;
 189         item->name = g_strdup(name);
 190         item->path = g_strdup(path);
 191         item->mtime = 0;
 192         item->new_msgs = 0;
 193         item->unread_msgs = 0;
 194         item->unreadmarked_msgs = 0;
 195         item->total_msgs = 0;
 196         item->last_num = -1;
 197         item->cache = NULL;
 198         item->no_sub = FALSE;
 199         item->no_select = FALSE;
 200         item->collapsed = FALSE;
 201         item->thread_collapsed = FALSE;
 202         item->threaded  = TRUE;
 203         item->ret_rcpt  = FALSE;
 204         item->opened    = FALSE;
 205         item->node = NULL;
 206         item->parent = NULL;
 207         item->folder = NULL;
 208         item->account = NULL;
 209         item->apply_sub = FALSE;
 210         item->mark_queue = NULL;
 211         item->data = NULL;
 212
 213         item->prefs = folder_item_prefs_new();
 214
 215         return item;
 216 }
 217
 218 void folder_item_append(FolderItem *parent, FolderItem *item)
 219 {
 220         g_return_if_fail(parent != NULL);
 221         g_return_if_fail(parent->folder != NULL);
 222         g_return_if_fail(parent->node != NULL);
 223         g_return_if_fail(item != NULL);
 224
 225         item->parent = parent;
 226         item->folder = parent->folder;
 227         item->node = g_node_append_data(parent->node, item);
 228 }
 229
 230 static gboolean folder_item_remove_func(GNode *node, gpointer data)
 231 {
 232         FolderItem *item = FOLDER_ITEM(node->data);
 233
 234         folder_item_destroy(item);
 235         return FALSE;
 236 }
 237
 238 void folder_item_remove(FolderItem *item)
 239 {
 240         GNode *node;
 241
 242         g_return_if_fail(item != NULL);
 243         g_return_if_fail(item->folder != NULL);
 244         g_return_if_fail(item->node != NULL);
 245
 246         node = item->node;
 247
 248         if (item->folder->node == node)
 249                 item->folder->node = NULL;
 250
 251         g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 252                         folder_item_remove_func, NULL);
 253         g_node_destroy(node);
 254 }
 255
 256 void folder_item_destroy(FolderItem *item)
 257 {
 258         Folder *folder;
 259
 260         g_return_if_fail(item != NULL);
 261
 262         folder = item->folder;
 263         if (folder) {
 264                 if (folder->inbox == item)
 265                         folder->inbox = NULL;
 266                 else if (folder->outbox == item)
 267                         folder->outbox = NULL;
 268                 else if (folder->draft == item)
 269                         folder->draft = NULL;
 270                 else if (folder->queue == item)
 271                         folder->queue = NULL;
 272                 else if (folder->trash == item)
 273                         folder->trash = NULL;
 274         }
 275
 276         if (item->cache)
 277                 folder_item_free_cache(item);
 278         g_free(item->name);
 279         g_free(item->path);
 280
 281         if (item->folder != NULL) {
 282                 if(item->folder->klass->item_destroy) {
 283                         item->folder->klass->item_destroy(item->folder, item);
 284                 } else {
 285                         g_free(item);
 286                 }
 287         }
 288 }
 289
 290 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 291 {
 292         g_return_if_fail(folder != NULL);
 293
 294         folder->ui_func = func;
 295         folder->ui_func_data = data;
 296 }
 297
 298 void folder_set_name(Folder *folder, const gchar *name)
 299 {
 300         g_return_if_fail(folder != NULL);
 301
 302         g_free(folder->name);
 303         folder->name = name ? g_strdup(name) : NULL;
 304         if (folder->node && folder->node->data) {
 305                 FolderItem *item = (FolderItem *)folder->node->data;
 306
 307                 g_free(item->name);
 308                 item->name = name ? g_strdup(name) : NULL;
 309         }
 310 }
 311
 312 gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 313         FolderItem *item = (FolderItem *) node->data;
 314
 315         folder_item_destroy(item);
 316         return FALSE;
 317 }
 318
 319 void folder_tree_destroy(Folder *folder)
 320 {
 321         g_return_if_fail(folder != NULL);
 322
 323         prefs_scoring_clear_folder(folder);
 324         prefs_filtering_clear_folder(folder);
 325
 326         if (folder->node)
 327                 folder_item_remove(FOLDER_ITEM(folder->node->data));
 328 }
 329
 330 void folder_add(Folder *folder)
 331 {
 332         Folder *cur_folder;
 333         GList *cur;
 334         gint i;
 335
 336         g_return_if_fail(folder != NULL);
 337
 338         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 339                 cur_folder = FOLDER(cur->data);
 340                 if (FOLDER_TYPE(folder) == F_MH) {
 341                         if (FOLDER_TYPE(cur_folder) != F_MH) break;
 342                 } else if (FOLDER_TYPE(folder) == F_MBOX) {
 343                         if (FOLDER_TYPE(cur_folder) != F_MH &&
 344                             FOLDER_TYPE(cur_folder) != F_MBOX) break;
 345                 } else if (FOLDER_TYPE(folder) == F_IMAP) {
 346                         if (FOLDER_TYPE(cur_folder) != F_MH &&
 347                             FOLDER_TYPE(cur_folder) != F_MBOX &&
 348                             FOLDER_TYPE(cur_folder) != F_IMAP) break;
 349                 } else if (FOLDER_TYPE(folder) == F_NEWS) {
 350                         if (FOLDER_TYPE(cur_folder) != F_MH &&
 351                             FOLDER_TYPE(cur_folder) != F_MBOX &&
 352                             FOLDER_TYPE(cur_folder) != F_IMAP &&
 353                             FOLDER_TYPE(cur_folder) != F_NEWS) break;
 354                 }
 355         }
 356
 357         folder_list = g_list_insert(folder_list, folder, i);
 358 }
 359
 360 GList *folder_get_list(void)
 361 {
 362         return folder_list;
 363 }
 364
 365 gint folder_read_list(void)
 366 {
 367         GNode *node;
 368         XMLNode *xmlnode;
 369         gchar *path;
 370
 371         path = folder_get_list_path();
 372         if (!is_file_exist(path)) return -1;
 373         node = xml_parse_file(path);
 374         if (!node) return -1;
 375
 376         xmlnode = node->data;
 377         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 378                 g_warning("wrong folder list\n");
 379                 xml_free_tree(node);
 380                 return -1;
 381         }
 382
 383         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, 2,
 384                         folder_read_folder_func, NULL);
 385
 386         xml_free_tree(node);
 387         if (folder_list)
 388                 return 0;
 389         else
 390                 return -1;
 391 }
 392
 393 void folder_write_list(void)
 394 {
 395         GList *list;
 396         Folder *folder;
 397         gchar *path;
 398         PrefFile *pfile;
 399
 400         path = folder_get_list_path();
 401         if ((pfile = prefs_write_open(path)) == NULL) return;
 402
 403         fprintf(pfile->fp, "<?xml version=\"1.0\" encoding=\"%s\"?>\n",
 404                 conv_get_current_charset_str());
 405         fputs("\n<folderlist>\n", pfile->fp);
 406
 407         for (list = folder_list; list != NULL; list = list->next) {
 408                 folder = list->data;
 409                 folder_write_list_recursive(folder->node, pfile->fp);
 410         }
 411
 412         fputs("</folderlist>\n", pfile->fp);
 413
 414         if (prefs_file_close(pfile) < 0)
 415                 g_warning("failed to write folder list.\n");
 416 }
 417
 418 gboolean folder_scan_tree_func(GNode *node, gpointer data)
 419 {
 420         GHashTable *pptable = (GHashTable *)data;
 421         FolderItem *item = (FolderItem *)node->data;
 422
 423         folder_item_restore_persist_prefs(item, pptable);
 424         folder_item_scan_full(item, FALSE);
 425
 426         return FALSE;
 427 }
 428
 429 void folder_scan_tree(Folder *folder)
 430 {
 431         GHashTable *pptable;
 432         FolderUpdateData hookdata;
 433
 434         if (!folder->klass->scan_tree)
 435                 return;
 436
 437         pptable = folder_persist_prefs_new(folder);
 438
 439         /*
 440          * should be changed and tree update should be done without
 441          * destroying the tree first
 442          */
 443         folder_tree_destroy(folder);
 444         folder->klass->scan_tree(folder);
 445
 446         hookdata.folder = folder;
 447         hookdata.update_flags = FOLDER_TREE_CHANGED;
 448         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 449
 450         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 451         folder_persist_prefs_free(pptable);
 452
 453         prefs_matcher_read_config();
 454
 455         folder_write_list();
 456 }
 457
 458 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 459 {
 460         FolderItem *new_item;
 461
 462         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 463         if (new_item)
 464                 new_item->cache = msgcache_new();
 465
 466         return new_item;
 467 }
 468
 469 struct TotalMsgCount
 470 {
 471         guint new_msgs;
 472         guint unread_msgs;
 473         guint unreadmarked_msgs;
 474         guint total_msgs;
 475 };
 476
 477 struct FuncToAllFoldersData
 478 {
 479         FolderItemFunc  function;
 480         gpointer        data;
 481 };
 482
 483 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
 484 {
 485         FolderItem *item;
 486         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
 487
 488         g_return_val_if_fail(node->data != NULL, FALSE);
 489
 490         item = FOLDER_ITEM(node->data);
 491         g_return_val_if_fail(item != NULL, FALSE);
 492
 493         function_data->function(item, function_data->data);
 494
 495         return FALSE;
 496 }
 497
 498 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
 499 {
 500         GList *list;
 501         Folder *folder;
 502         struct FuncToAllFoldersData function_data;
 503
 504         function_data.function = function;
 505         function_data.data = data;
 506
 507         for (list = folder_list; list != NULL; list = list->next) {
 508                 folder = FOLDER(list->data);
 509                 if (folder->node)
 510                         g_node_traverse(folder->node, G_PRE_ORDER,
 511                                         G_TRAVERSE_ALL, -1,
 512                                         folder_func_to_all_folders_func,
 513                                         &function_data);
 514         }
 515 }
 516
 517 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
 518 {
 519         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
 520
 521         count->new_msgs += item->new_msgs;
 522         count->unread_msgs += item->unread_msgs;
 523         count->unreadmarked_msgs += item->unreadmarked_msgs;
 524         count->total_msgs += item->total_msgs;
 525 }
 526
 527 struct TotalMsgStatus
 528 {
 529         guint new;
 530         guint unread;
 531         guint total;
 532         GString *str;
 533 };
 534
 535 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
 536 {
 537         FolderItem *item;
 538         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
 539         gchar *id;
 540
 541         g_return_val_if_fail(node->data != NULL, FALSE);
 542
 543         item = FOLDER_ITEM(node->data);
 544
 545         if (!item->path) return FALSE;
 546
 547         status->new += item->new_msgs;
 548         status->unread += item->unread_msgs;
 549         status->total += item->total_msgs;
 550
 551         if (status->str) {
 552                 id = folder_item_get_identifier(item);
 553                 g_string_sprintfa(status->str, "%5d %5d %5d %s\n",
 554                                   item->new_msgs, item->unread_msgs,
 555                                   item->total_msgs, id);
 556                 g_free(id);
 557         }
 558
 559         return FALSE;
 560  }
 561
 562 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
 563                                        guint *total)
 564 {
 565         GList *list;
 566         Folder *folder;
 567         struct TotalMsgStatus status;
 568
 569         status.new = status.unread = status.total = 0;
 570         status.str = str;
 571
 572         debug_print("Counting total number of messages...\n");
 573
 574         for (list = folder_list; list != NULL; list = list->next) {
 575                 folder = FOLDER(list->data);
 576                 if (folder->node)
 577                         g_node_traverse(folder->node, G_PRE_ORDER,
 578                                         G_TRAVERSE_ALL, -1,
 579                                         folder_get_status_full_all_func,
 580                                         &status);
 581         }
 582
 583         *new = status.new;
 584         *unread = status.unread;
 585         *total = status.total;
 586 }
 587
 588 gchar *folder_get_status(GPtrArray *folders, gboolean full)
 589 {
 590         guint new, unread, total;
 591         GString *str;
 592         gint i;
 593         gchar *ret;
 594
 595         new = unread = total = 0;
 596
 597         str = g_string_new(NULL);
 598
 599         if (folders) {
 600                 for (i = 0; i < folders->len; i++) {
 601                         FolderItem *item;
 602
 603                         item = g_ptr_array_index(folders, i);
 604                         new += item->new_msgs;
 605                         unread += item->unread_msgs;
 606                         total += item->total_msgs;
 607
 608                         if (full) {
 609                                 gchar *id;
 610
 611                                 id = folder_item_get_identifier(item);
 612                                 g_string_sprintfa(str, "%5d %5d %5d %s\n",
 613                                                   item->new_msgs, item->unread_msgs,
 614                                                   item->total_msgs, id);
 615                                 g_free(id);
 616                         }
 617                 }
 618         } else {
 619                 folder_get_status_full_all(full ? str : NULL,
 620                                            &new, &unread, &total);
 621         }
 622
 623         if (full)
 624                 g_string_sprintfa(str, "%5d %5d %5d\n", new, unread, total);
 625         else
 626                 g_string_sprintfa(str, "%d %d %d\n", new, unread, total);
 627
 628         ret = str->str;
 629         g_string_free(str, FALSE);
 630
 631         return ret;
 632 }
 633
 634 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs, guint *unreadmarked_msgs, guint *total_msgs)
 635 {
 636         struct TotalMsgCount count;
 637
 638         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = count.total_msgs = 0;
 639
 640         debug_print("Counting total number of messages...\n");
 641
 642         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
 643
 644         *new_msgs = count.new_msgs;
 645         *unread_msgs = count.unread_msgs;
 646         *unreadmarked_msgs = count.unreadmarked_msgs;
 647         *total_msgs = count.total_msgs;
 648 }
 649
 650 Folder *folder_find_from_path(const gchar *path)
 651 {
 652         GList *list;
 653         Folder *folder;
 654
 655         for (list = folder_list; list != NULL; list = list->next) {
 656                 folder = list->data;
 657                 if ((FOLDER_TYPE(folder) == F_MH || FOLDER_TYPE(folder) == F_MBOX) &&
 658                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
 659                         return folder;
 660         }
 661
 662         return NULL;
 663 }
 664
 665 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
 666 {
 667         GList *list;
 668         Folder *folder;
 669
 670         for (list = folder_list; list != NULL; list = list->next) {
 671                 folder = list->data;
 672                 if (folder->klass == klass && strcmp2(name, folder->name) == 0)
 673                         return folder;
 674         }
 675
 676         return NULL;
 677 }
 678
 679 static gboolean folder_item_find_func(GNode *node, gpointer data)
 680 {
 681         FolderItem *item = node->data;
 682         gpointer *d = data;
 683         const gchar *path = d[0];
 684
 685         if (path_cmp(path, item->path) != 0)
 686                 return FALSE;
 687
 688         d[1] = item;
 689
 690         return TRUE;
 691 }
 692
 693 FolderItem *folder_find_item_from_path(const gchar *path)
 694 {
 695         Folder *folder;
 696         gpointer d[2];
 697
 698         folder = folder_get_default_folder();
 699         g_return_val_if_fail(folder != NULL, NULL);
 700
 701         d[0] = (gpointer)path;
 702         d[1] = NULL;
 703         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 704                         folder_item_find_func, d);
 705         return d[1];
 706 }
 707
 708 FolderClass *folder_get_class_from_string(const gchar *str)
 709 {
 710         GSList *classlist;
 711
 712         classlist = folder_get_class_list();
 713         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
 714                 FolderClass *class = (FolderClass *) classlist->data;
 715                 if (g_strcasecmp(class->idstr, str) == 0)
 716                         return class;
 717         }
 718
 719         return NULL;
 720 }
 721
 722 gchar *folder_get_identifier(Folder *folder)
 723 {
 724         gchar *type_str;
 725
 726         g_return_val_if_fail(folder != NULL, NULL);
 727
 728         type_str = folder->klass->idstr;
 729         return g_strconcat("#", type_str, "/", folder->name, NULL);
 730 }
 731
 732 gchar *folder_item_get_identifier(FolderItem *item)
 733 {
 734         gchar *id;
 735         gchar *folder_id;
 736
 737         g_return_val_if_fail(item != NULL, NULL);
 738         g_return_val_if_fail(item->path != NULL, NULL);
 739
 740         folder_id = folder_get_identifier(item->folder);
 741         id = g_strconcat(folder_id, "/", item->path, NULL);
 742         g_free(folder_id);
 743
 744         return id;
 745 }
 746
 747 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
 748 {
 749         Folder *folder;
 750         gpointer d[2];
 751         gchar *str;
 752         gchar *p;
 753         gchar *name;
 754         gchar *path;
 755         FolderClass *class;
 756
 757         g_return_val_if_fail(identifier != NULL, NULL);
 758
 759         if (*identifier != '#')
 760                 return folder_find_item_from_path(identifier);
 761
 762         Xstrdup_a(str, identifier, return NULL);
 763
 764         p = strchr(str, '/');
 765         if (!p)
 766                 return folder_find_item_from_path(identifier);
 767         *p = '\0';
 768         p++;
 769         class = folder_get_class_from_string(&str[1]);
 770         if (class == NULL)
 771                 return folder_find_item_from_path(identifier);
 772
 773         name = p;
 774         p = strchr(p, '/');
 775         if (!p)
 776                 return folder_find_item_from_path(identifier);
 777         *p = '\0';
 778         p++;
 779
 780         folder = folder_find_from_name(name, class);
 781         if (!folder)
 782                 return folder_find_item_from_path(identifier);
 783
 784         path = p;
 785
 786         d[0] = (gpointer)path;
 787         d[1] = NULL;
 788         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 789                         folder_item_find_func, d);
 790         return d[1];
 791 }
 792
 793 /**
 794  * Get a displayable name for a FolderItem
 795  *
 796  * \param item FolderItem for that a name should be created
 797  * \return Displayable name for item, returned string has to
 798  *         be freed
 799  */
 800 gchar *folder_item_get_name(FolderItem *item)
 801 {
 802         gchar *name = NULL;
 803
 804         switch (item->stype) {
 805         case F_INBOX:
 806                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
 807                                 item->name);
 808                 break;
 809         case F_OUTBOX:
 810                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
 811                                 item->name);
 812                 break;
 813         case F_QUEUE:
 814                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
 815                                 item->name);
 816                 break;
 817         case F_TRASH:
 818                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
 819                                 item->name);
 820                 break;
 821         case F_DRAFT:
 822                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
 823                                 item->name);
 824                 break;
 825         default:
 826                 break;
 827         }
 828
 829         if (name == NULL) {
 830                 /*
 831                  * should probably be done by a virtual function,
 832                  * the folder knows the ui string and how to abbrev
 833                 */
 834                 if (!item->parent) {
 835                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
 836                 } else {
 837                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
 838                             item->path && !strcmp2(item->name, item->path))
 839                                 name = get_abbrev_newsgroup_name
 840                                         (item->path,
 841                                          prefs_common.ng_abbrev_len);
 842                         else
 843                                 name = g_strdup(item->name);
 844                 }
 845         }
 846
 847         if (name == NULL)
 848                 name = g_strdup("");
 849
 850         return name;
 851 }
 852
 853 Folder *folder_get_default_folder(void)
 854 {
 855         return folder_list ? FOLDER(folder_list->data) : NULL;
 856 }
 857
 858 FolderItem *folder_get_default_inbox(void)
 859 {
 860         Folder *folder;
 861
 862         if (!folder_list) return NULL;
 863         folder = FOLDER(folder_list->data);
 864         g_return_val_if_fail(folder != NULL, NULL);
 865         return folder->inbox;
 866 }
 867
 868 FolderItem *folder_get_default_outbox(void)
 869 {
 870         Folder *folder;
 871
 872         if (!folder_list) return NULL;
 873         folder = FOLDER(folder_list->data);
 874         g_return_val_if_fail(folder != NULL, NULL);
 875         return folder->outbox;
 876 }
 877
 878 FolderItem *folder_get_default_draft(void)
 879 {
 880         Folder *folder;
 881
 882         if (!folder_list) return NULL;
 883         folder = FOLDER(folder_list->data);
 884         g_return_val_if_fail(folder != NULL, NULL);
 885         return folder->draft;
 886 }
 887
 888 FolderItem *folder_get_default_queue(void)
 889 {
 890         Folder *folder;
 891
 892         if (!folder_list) return NULL;
 893         folder = FOLDER(folder_list->data);
 894         g_return_val_if_fail(folder != NULL, NULL);
 895         return folder->queue;
 896 }
 897
 898 FolderItem *folder_get_default_trash(void)
 899 {
 900         Folder *folder;
 901
 902         if (!folder_list) return NULL;
 903         folder = FOLDER(folder_list->data);
 904         g_return_val_if_fail(folder != NULL, NULL);
 905         return folder->trash;
 906 }
 907
 908 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
 909 {                                                               \
 910         if (!folder->member) {                                  \
 911                 item = folder_item_new(folder, dir, dir);       \
 912                 item->stype = type;                             \
 913                 folder_item_append(rootitem, item);             \
 914                 folder->member = item;                          \
 915         }                                                       \
 916 }
 917
 918 void folder_set_missing_folders(void)
 919 {
 920         Folder *folder;
 921         FolderItem *rootitem;
 922         FolderItem *item;
 923         GList *list;
 924
 925         for (list = folder_list; list != NULL; list = list->next) {
 926                 folder = list->data;
 927                 if (FOLDER_TYPE(folder) != F_MH) continue;
 928                 rootitem = FOLDER_ITEM(folder->node->data);
 929                 g_return_if_fail(rootitem != NULL);
 930
 931                 if (folder->inbox && folder->outbox && folder->draft &&
 932                     folder->queue && folder->trash)
 933                         continue;
 934
 935                 if (folder->klass->create_tree(folder) < 0) {
 936                         g_warning("%s: can't create the folder tree.\n",
 937                                   LOCAL_FOLDER(folder)->rootpath);
 938                         continue;
 939                 }
 940
 941                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
 942                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
 943                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
 944                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
 945                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
 946         }
 947 }
 948
 949 static gboolean folder_unref_account_func(GNode *node, gpointer data)
 950 {
 951         FolderItem *item = node->data;
 952         PrefsAccount *account = data;
 953
 954         if (item->account == account)
 955                 item->account = NULL;
 956
 957         return FALSE;
 958 }
 959
 960 void folder_unref_account_all(PrefsAccount *account)
 961 {
 962         Folder *folder;
 963         GList *list;
 964
 965         if (!account) return;
 966
 967         for (list = folder_list; list != NULL; list = list->next) {
 968                 folder = list->data;
 969                 if (folder->account == account)
 970                         folder->account = NULL;
 971                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 972                                 folder_unref_account_func, account);
 973         }
 974 }
 975
 976 #undef CREATE_FOLDER_IF_NOT_EXIST
 977
 978 gchar *folder_item_get_path(FolderItem *item)
 979 {
 980         Folder *folder;
 981
 982         g_return_val_if_fail(item != NULL, NULL);
 983         folder = item->folder;
 984         g_return_val_if_fail(folder != NULL, NULL);
 985
 986         return folder->klass->item_get_path(folder, item);
 987 }
 988
 989 void folder_item_set_default_flags(FolderItem *dest, MsgFlags *flags)
 990 {
 991         if (!(dest->stype == F_OUTBOX ||
 992               dest->stype == F_QUEUE  ||
 993               dest->stype == F_DRAFT  ||
 994               dest->stype == F_TRASH)) {
 995                 flags->perm_flags = MSG_NEW|MSG_UNREAD;
 996         } else {
 997                 flags->perm_flags = 0;
 998         }
 999         flags->tmp_flags = MSG_CACHED;
1000         if (FOLDER_TYPE(dest->folder) == F_MH) {
1001                 if (dest->stype == F_QUEUE) {
1002                         MSG_SET_TMP_FLAGS(*flags, MSG_QUEUED);
1003                 } else if (dest->stype == F_DRAFT) {
1004                         MSG_SET_TMP_FLAGS(*flags, MSG_DRAFT);
1005                 }
1006         }
1007 }
1008
1009 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1010 {
1011         MsgInfo *msginfo_a = (MsgInfo *) a;
1012         MsgInfo *msginfo_b = (MsgInfo *) b;
1013
1014         return (msginfo_a->msgnum - msginfo_b->msgnum);
1015 }
1016
1017 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1018 {
1019         guint gint_a = GPOINTER_TO_INT(a);
1020         guint gint_b = GPOINTER_TO_INT(b);
1021
1022         return (gint_a - gint_b);
1023 }
1024
1025 gint folder_item_open(FolderItem *item)
1026 {
1027         if((item->folder->klass->scan_required != NULL) && (item->folder->klass->scan_required(item->folder, item))) {
1028                 folder_item_scan_full(item, TRUE);
1029         }
1030
1031         /* Processing */
1032         if(item->prefs->processing != NULL) {
1033                 gchar *buf;
1034
1035                 buf = g_strdup_printf(_("Processing (%s)...\n"), item->path);
1036                 debug_print("%s\n", buf);
1037                 g_free(buf);
1038
1039                 folder_item_apply_processing(item);
1040
1041                 debug_print("done.\n");
1042         }
1043
1044         return 0;
1045 }
1046
1047 gint folder_item_close(FolderItem *item)
1048 {
1049         GSList *mlist, *cur;
1050         Folder *folder;
1051
1052         g_return_val_if_fail(item != NULL, -1);
1053
1054         if (item->new_msgs) {
1055                 folder_item_update_freeze();
1056                 mlist = folder_item_get_msg_list(item);
1057                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1058                         MsgInfo * msginfo;
1059
1060                         msginfo = (MsgInfo *) cur->data;
1061                         if (MSG_IS_NEW(msginfo->flags))
1062                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1063                         procmsg_msginfo_free(msginfo);
1064                 }
1065                 g_slist_free(mlist);
1066                 folder_item_update_thaw();
1067         }
1068
1069         folder_item_write_cache(item);
1070
1071         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1072
1073         item->opened = FALSE;
1074         folder = item->folder;
1075
1076         if (folder->klass->close == NULL)
1077                 return 0;
1078
1079         return folder->klass->close(folder, item);
1080 }
1081
1082 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1083 {
1084         Folder *folder;
1085         GSList *folder_list = NULL, *cache_list = NULL;
1086         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1087         GSList *exists_list = NULL, *elem;
1088         GSList *newmsg_list = NULL;
1089         guint newcnt = 0, unreadcnt = 0, totalcnt = 0, unreadmarkedcnt = 0;
1090         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1091         gboolean update_flags = 0, old_uids_valid = FALSE;
1092
1093         g_return_val_if_fail(item != NULL, -1);
1094         if (item->path == NULL) return -1;
1095
1096         folder = item->folder;
1097
1098         g_return_val_if_fail(folder != NULL, -1);
1099         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1100
1101         debug_print("Scanning folder %s for cache changes.\n", item->path);
1102
1103         /* Get list of messages for folder and cache */
1104         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1105                 debug_print("Error fetching list of message numbers\n");
1106                 return(-1);
1107         }
1108
1109         if (old_uids_valid) {
1110                 if (!item->cache)
1111                         folder_item_read_cache(item);
1112                 cache_list = msgcache_get_msg_list(item->cache);
1113         } else {
1114                 if (item->cache)
1115                         msgcache_destroy(item->cache);
1116                 item->cache = msgcache_new();
1117                 cache_list = NULL;
1118         }
1119
1120         /* Sort both lists */
1121         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
1122         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
1123
1124         cache_list_cur = cache_list;
1125         folder_list_cur = folder_list;
1126
1127         if (cache_list_cur != NULL) {
1128                 GSList *cache_list_last;
1129
1130                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1131                 cache_list_last = g_slist_last(cache_list);
1132                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
1133         } else {
1134                 cache_cur_num = G_MAXINT;
1135                 cache_max_num = 0;
1136         }
1137
1138         if (folder_list_cur != NULL) {
1139                 GSList *folder_list_last;
1140
1141                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1142                 folder_list_last = g_slist_last(folder_list);
1143                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
1144         } else {
1145                 folder_cur_num = G_MAXINT;
1146                 folder_max_num = 0;
1147         }
1148
1149         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
1150                 /*
1151                  *  Message only exists in the folder
1152                  *  Remember message for fetching
1153                  */
1154                 if (folder_cur_num < cache_cur_num) {
1155                         gboolean add = FALSE;
1156
1157                         switch(FOLDER_TYPE(folder)) {
1158                                 case F_NEWS:
1159                                         if (folder_cur_num < cache_max_num)
1160                                                 break;
1161
1162                                         if (folder->account->max_articles == 0) {
1163                                                 add = TRUE;
1164                                         }
1165
1166                                         if (folder_max_num <= folder->account->max_articles) {
1167                                                 add = TRUE;
1168                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
1169                                                 add = TRUE;
1170                                         }
1171                                         break;
1172                                 default:
1173                                         add = TRUE;
1174                                         break;
1175                         }
1176
1177                         if (add) {
1178                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
1179                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
1180                         }
1181
1182                         /* Move to next folder number */
1183                         folder_list_cur = folder_list_cur->next;
1184
1185                         if (folder_list_cur != NULL)
1186                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1187                         else
1188                                 folder_cur_num = G_MAXINT;
1189
1190                         continue;
1191                 }
1192
1193                 /*
1194                  *  Message only exists in the cache
1195                  *  Remove the message from the cache
1196                  */
1197                 if (cache_cur_num < folder_cur_num) {
1198                         msgcache_remove_msg(item->cache, cache_cur_num);
1199                         debug_print("Removed message %d from cache.\n", cache_cur_num);
1200
1201                         /* Move to next cache number */
1202                         cache_list_cur = cache_list_cur->next;
1203
1204                         if (cache_list_cur != NULL)
1205                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1206                         else
1207                                 cache_cur_num = G_MAXINT;
1208
1209                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1210
1211                         continue;
1212                 }
1213
1214                 /*
1215                  *  Message number exists in folder and cache!
1216                  *  Check if the message has been modified
1217                  */
1218                 if (cache_cur_num == folder_cur_num) {
1219                         MsgInfo *msginfo;
1220
1221                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
1222                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
1223                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
1224                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
1225                                 procmsg_msginfo_free(msginfo);
1226
1227                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
1228                         } else
1229                                 exists_list = g_slist_prepend(exists_list, msginfo);
1230
1231                         /* Move to next folder and cache number */
1232                         cache_list_cur = cache_list_cur->next;
1233                         folder_list_cur = folder_list_cur->next;
1234
1235                         if (cache_list_cur != NULL)
1236                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1237                         else
1238                                 cache_cur_num = G_MAXINT;
1239
1240                         if (folder_list_cur != NULL)
1241                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1242                         else
1243                                 folder_cur_num = G_MAXINT;
1244
1245                         continue;
1246                 }
1247         }
1248
1249         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
1250                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
1251
1252         g_slist_free(cache_list);
1253         g_slist_free(folder_list);
1254
1255         if (new_list != NULL) {
1256                 if (folder->klass->get_msginfos) {
1257                         newmsg_list = folder->klass->get_msginfos(folder, item, new_list);
1258                 } else if (folder->klass->get_msginfo) {
1259                         GSList *elem;
1260
1261                         for (elem = new_list; elem != NULL; elem = g_slist_next(elem)) {
1262                                 MsgInfo *msginfo;
1263                                 guint num;
1264
1265                                 num = GPOINTER_TO_INT(elem->data);
1266                                 msginfo = folder->klass->get_msginfo(folder, item, num);
1267                                 if (msginfo != NULL) {
1268                                         newmsg_list = g_slist_prepend(newmsg_list, msginfo);
1269                                         debug_print("Added newly found message %d to cache.\n", num);
1270                                 }
1271                         }
1272                 }
1273                 g_slist_free(new_list);
1274         }
1275
1276         folder_item_update_freeze();
1277         if (newmsg_list != NULL) {
1278                 GSList *elem;
1279
1280                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
1281                         MsgInfo *msginfo = (MsgInfo *) elem->data;
1282
1283                         msgcache_add_msg(item->cache, msginfo);
1284                         if ((filtering == TRUE) &&
1285                             (item->stype == F_INBOX) &&
1286                             (item->folder->account != NULL) &&
1287                             (item->folder->account->filter_on_recv) &&
1288                             procmsg_msginfo_filter(msginfo))
1289                                 procmsg_msginfo_free(msginfo);
1290                         else
1291                                 exists_list = g_slist_prepend(exists_list, msginfo);
1292                 }
1293                 g_slist_free(newmsg_list);
1294
1295                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1296         }
1297
1298         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
1299                 MsgInfo *msginfo;
1300
1301                 msginfo = elem->data;
1302                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1303                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1304                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
1305                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1306                         procmsg_msginfo_set_flags(msginfo, MSG_IGNORE_THREAD, 0);
1307                 }
1308                 if ((item->stype == F_OUTBOX ||
1309                      item->stype == F_QUEUE  ||
1310                      item->stype == F_DRAFT  ||
1311                      item->stype == F_TRASH) &&
1312                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1313                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1314                 if (MSG_IS_NEW(msginfo->flags))
1315                         newcnt++;
1316                 if (MSG_IS_UNREAD(msginfo->flags))
1317                         unreadcnt++;
1318                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
1319                         unreadmarkedcnt++;
1320                 totalcnt++;
1321
1322                 procmsg_msginfo_free(msginfo);
1323         }
1324         g_slist_free(exists_list);
1325
1326         item->new_msgs = newcnt;
1327         item->unread_msgs = unreadcnt;
1328         item->total_msgs = totalcnt;
1329         item->unreadmarked_msgs = unreadmarkedcnt;
1330
1331         update_flags |= F_ITEM_UPDATE_MSGCNT;
1332
1333         folder_item_update(item, update_flags);
1334         folder_item_update_thaw();
1335
1336         return 0;
1337 }
1338
1339 gint folder_item_scan(FolderItem *item)
1340 {
1341         return folder_item_scan_full(item, TRUE);
1342 }
1343
1344 static gboolean folder_scan_all_items_func(GNode *node, gpointer data)
1345 {
1346         FolderItem *item = node->data;
1347
1348         folder_item_scan(item);
1349
1350         return FALSE;
1351 }
1352
1353 void folder_scan_all_items(Folder * folder)
1354 {
1355         g_node_traverse(folder->node, G_PRE_ORDER,
1356                         G_TRAVERSE_ALL, -1, folder_scan_all_items_func, NULL);
1357 }
1358
1359 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
1360                                           gpointer data)
1361 {
1362         folder_item_scan(FOLDER_ITEM(key));
1363 }
1364
1365 void folder_item_scan_foreach(GHashTable *table)
1366 {
1367         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
1368 }
1369
1370 void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
1371 {
1372         gint *memusage = (gint *)data;
1373
1374         if (item->cache == NULL)
1375                 return;
1376
1377         *memusage += msgcache_get_memory_usage(item->cache);
1378 }
1379
1380 gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
1381 {
1382         FolderItem *fa = (FolderItem *)a;
1383         FolderItem *fb = (FolderItem *)b;
1384
1385         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
1386 }
1387
1388 void folder_find_expired_caches(FolderItem *item, gpointer data)
1389 {
1390         GSList **folder_item_list = (GSList **)data;
1391         gint difftime, expiretime;
1392
1393         if (item->cache == NULL)
1394                 return;
1395
1396         if (item->opened > 0)
1397                 return;
1398
1399         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
1400         expiretime = prefs_common.cache_min_keep_time * 60;
1401         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
1402         if (difftime > expiretime) {
1403                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
1404         }
1405 }
1406
1407 void folder_item_free_cache(FolderItem *item)
1408 {
1409         g_return_if_fail(item != NULL);
1410
1411         if (item->cache == NULL)
1412                 return;
1413
1414         if (item->opened > 0)
1415                 return;
1416
1417         folder_item_write_cache(item);
1418         msgcache_destroy(item->cache);
1419         item->cache = NULL;
1420 }
1421
1422 void folder_clean_cache_memory(void)
1423 {
1424         gint memusage = 0;
1425
1426         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
1427         debug_print("Total cache memory usage: %d\n", memusage);
1428
1429         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
1430                 GSList *folder_item_list = NULL, *listitem;
1431
1432                 debug_print("Trying to free cache memory\n");
1433
1434                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
1435                 listitem = folder_item_list;
1436                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
1437                         FolderItem *item = (FolderItem *)(listitem->data);
1438
1439                         debug_print("Freeing cache memory for %s\n", item->path);
1440                         memusage -= msgcache_get_memory_usage(item->cache);
1441                         folder_item_free_cache(item);
1442                         listitem = listitem->next;
1443                 }
1444                 g_slist_free(folder_item_list);
1445         }
1446 }
1447
1448 void folder_item_read_cache(FolderItem *item)
1449 {
1450         gchar *cache_file, *mark_file;
1451
1452         g_return_if_fail(item != NULL);
1453
1454         cache_file = folder_item_get_cache_file(item);
1455         mark_file = folder_item_get_mark_file(item);
1456         item->cache = msgcache_read_cache(item, cache_file);
1457         if (!item->cache) {
1458                 item->cache = msgcache_new();
1459                 folder_item_scan_full(item, TRUE);
1460         }
1461         msgcache_read_mark(item->cache, mark_file);
1462         g_free(cache_file);
1463         g_free(mark_file);
1464
1465         folder_clean_cache_memory();
1466 }
1467
1468 void folder_item_write_cache(FolderItem *item)
1469 {
1470         gchar *cache_file, *mark_file;
1471         FolderItemPrefs *prefs;
1472         gint filemode = 0;
1473         gchar *id;
1474
1475         if (!item || !item->path || !item->cache)
1476                 return;
1477
1478         id = folder_item_get_identifier(item);
1479         debug_print("Save cache for folder %s\n", id);
1480         g_free(id);
1481
1482         cache_file = folder_item_get_cache_file(item);
1483         mark_file = folder_item_get_mark_file(item);
1484         if (msgcache_write(cache_file, mark_file, item->cache) < 0) {
1485                 prefs = item->prefs;
1486                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
1487                         /* for cache file */
1488                         filemode = prefs->folder_chmod;
1489                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
1490                         if (filemode & S_IROTH) filemode |= S_IWOTH;
1491                         chmod(cache_file, filemode);
1492                 }
1493         }
1494
1495         g_free(cache_file);
1496         g_free(mark_file);
1497 }
1498
1499 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
1500 {
1501         Folder *folder;
1502         MsgInfo *msginfo;
1503
1504         g_return_val_if_fail(item != NULL, NULL);
1505
1506         folder = item->folder;
1507         if (!item->cache)
1508                 folder_item_read_cache(item);
1509
1510         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
1511                 return msginfo;
1512
1513         g_return_val_if_fail(folder->klass->get_msginfo, NULL);
1514         if ((msginfo = folder->klass->get_msginfo(folder, item, num)) != NULL) {
1515                 msgcache_add_msg(item->cache, msginfo);
1516                 return msginfo;
1517         }
1518
1519         return NULL;
1520 }
1521
1522 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
1523 {
1524         Folder *folder;
1525         MsgInfo *msginfo;
1526
1527         g_return_val_if_fail(item != NULL, NULL);
1528
1529         folder = item->folder;
1530         if (!item->cache)
1531                 folder_item_read_cache(item);
1532
1533         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
1534                 return msginfo;
1535
1536         return NULL;
1537 }
1538
1539 GSList *folder_item_get_msg_list(FolderItem *item)
1540 {
1541         g_return_val_if_fail(item != NULL, NULL);
1542
1543         if (item->cache == 0)
1544                 folder_item_read_cache(item);
1545
1546         g_return_val_if_fail(item->cache != NULL, NULL);
1547
1548         return msgcache_get_msg_list(item->cache);
1549 }
1550
1551 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
1552 {
1553         Folder *folder;
1554
1555         g_return_val_if_fail(item != NULL, NULL);
1556
1557         folder = item->folder;
1558
1559         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
1560
1561         return folder->klass->fetch_msg(folder, item, num);
1562 }
1563
1564 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
1565 {
1566         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
1567                                        {NULL,           NULL, FALSE}};
1568         FILE *fp;
1569         MsgInfo *msginfo;
1570         gint msgnum = 0;
1571         gchar buf[BUFFSIZE];
1572
1573         if ((fp = fopen(file, "rb")) == NULL)
1574                 return 0;
1575
1576         if ((dest->stype == F_QUEUE) || (dest->stype == F_DRAFT))
1577                 while (fgets(buf, sizeof(buf), fp) != NULL)
1578                         if (buf[0] == '\r' || buf[0] == '\n') break;
1579
1580         procheader_get_header_fields(fp, hentry);
1581         if (hentry[0].body) {
1582                 extract_parenthesis(hentry[0].body, '<', '>');
1583                 remove_space(hentry[0].body);
1584                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
1585                         msgnum = msginfo->msgnum;
1586                         procmsg_msginfo_free(msginfo);
1587
1588                         debug_print("found message as uid %d\n", msgnum);
1589                 }
1590         }
1591
1592         g_free(hentry[0].body);
1593         hentry[0].body = NULL;
1594         fclose(fp);
1595
1596         return msgnum;
1597 }
1598
1599 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
1600 {
1601         MsgPermFlags perm_flags = 0;
1602         MsgTmpFlags tmp_flags = 0;
1603
1604         /* create new flags */
1605         if (source != NULL) {
1606                 /* copy original flags */
1607                 perm_flags = source->flags.perm_flags;
1608                 tmp_flags = source->flags.tmp_flags;
1609         } else {
1610                 perm_flags = dest->flags.perm_flags;
1611                 tmp_flags = dest->flags.tmp_flags;
1612         }
1613
1614         /* remove new, unread and deleted in special folders */
1615         if (dest->folder->stype == F_OUTBOX ||
1616             dest->folder->stype == F_QUEUE  ||
1617             dest->folder->stype == F_DRAFT  ||
1618             dest->folder->stype == F_TRASH)
1619                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
1620
1621         /* set ignore flag of ignored parent exists */
1622         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
1623                 perm_flags |= MSG_IGNORE_THREAD;
1624
1625         /* Unset tmp flags that should not be copied */
1626         tmp_flags &= ~(MSG_MOVE | MSG_COPY);
1627
1628         /* unset flags that are set but should not */
1629         procmsg_msginfo_unset_flags(dest,
1630                                     dest->flags.perm_flags & ~perm_flags,
1631                                     dest->flags.tmp_flags  & ~tmp_flags);
1632         /* set new flags */
1633         procmsg_msginfo_set_flags(dest,
1634                                   ~dest->flags.perm_flags & perm_flags,
1635                                   ~dest->flags.tmp_flags  & tmp_flags);
1636
1637         folder_item_update(dest->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
1638 }
1639
1640 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
1641 {
1642         /* update folder stats */
1643         if (MSG_IS_NEW(newmsginfo->flags))
1644                 item->new_msgs++;
1645         if (MSG_IS_UNREAD(newmsginfo->flags))
1646                 item->unread_msgs++;
1647         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
1648                 item->unreadmarked_msgs++;
1649         item->total_msgs++;
1650
1651         copy_msginfo_flags(flagsource, newmsginfo);
1652
1653         msgcache_add_msg(item->cache, newmsginfo);
1654 }
1655
1656 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
1657 {
1658         if (!item->cache)
1659                 folder_item_read_cache(item);
1660
1661         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
1662                 msginfo->folder->new_msgs--;
1663         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
1664                 msginfo->folder->unread_msgs--;
1665         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
1666                 msginfo->folder->unreadmarked_msgs--;
1667         msginfo->folder->total_msgs--;
1668
1669         msgcache_remove_msg(item->cache, msginfo->msgnum);
1670         folder_item_update(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
1671 }
1672
1673 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
1674                          MsgFlags *flags, gboolean remove_source)
1675 {
1676         GSList file_list;
1677         MsgFileInfo fileinfo;
1678
1679         g_return_val_if_fail(dest != NULL, -1);
1680         g_return_val_if_fail(file != NULL, -1);
1681
1682         fileinfo.msginfo = NULL;
1683         fileinfo.file = (gchar *)file;
1684         fileinfo.flags = flags;
1685         file_list.data = &fileinfo;
1686         file_list.next = NULL;
1687
1688         return folder_item_add_msgs(dest, &file_list, remove_source);
1689 }
1690
1691 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
1692                           gboolean remove_source)
1693 {
1694         Folder *folder;
1695         gint ret, num, lastnum = -1;
1696         GSList *file_cur;
1697         GRelation *relation;
1698         MsgFileInfo *fileinfo = NULL;
1699         gboolean folderscan = FALSE;
1700
1701         g_return_val_if_fail(dest != NULL, -1);
1702         g_return_val_if_fail(file_list != NULL, -1);
1703         g_return_val_if_fail(dest->folder != NULL, -1);
1704
1705         folder = dest->folder;
1706
1707         relation = g_relation_new(2);
1708         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1709
1710         if (folder->klass->add_msgs != NULL) {
1711                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
1712                 if (ret < 0) {
1713                         g_relation_destroy(relation);
1714                         return ret;
1715                 }
1716         } else {
1717                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
1718                         fileinfo = (MsgFileInfo *) file_cur->data;
1719
1720                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
1721                         if (ret < 0) {
1722                                 g_relation_destroy(relation);
1723                                 return ret;
1724                         }
1725                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
1726                 }
1727         }
1728
1729         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
1730                 GTuples *tuples;
1731
1732                 fileinfo = (MsgFileInfo *) file_cur->data;
1733                 tuples = g_relation_select(relation, fileinfo, 0);
1734                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1735                 g_tuples_destroy(tuples);
1736
1737                 if (num >= 0) {
1738                         MsgInfo *newmsginfo;
1739
1740                         if (num == 0) {
1741                                 if (!folderscan) {
1742                                         folder_item_scan_full(dest, FALSE);
1743                                         folderscan = TRUE;
1744                                 }
1745                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
1746                         }
1747
1748                         if (num > lastnum)
1749                                 lastnum = num;
1750
1751                         if (num >= 0 && remove_source) {
1752                                 if (unlink(fileinfo->file) < 0)
1753                                         FILE_OP_ERROR(fileinfo->file, "unlink");
1754                         }
1755
1756                         if (num == 0)
1757                                 continue;
1758
1759                         if (!folderscan &&
1760                             ((newmsginfo = folder->klass->get_msginfo(folder, dest, num)) != NULL)) {
1761                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
1762                                 procmsg_msginfo_free(newmsginfo);
1763                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
1764                                 /* TODO: set default flags */
1765                                 procmsg_msginfo_free(newmsginfo);
1766                         }
1767                 }
1768         }
1769
1770         g_relation_destroy(relation);
1771
1772         return lastnum;
1773 }
1774
1775 /*
1776 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
1777 {
1778         Folder *folder;
1779         gint num;
1780
1781         g_return_val_if_fail(dest != NULL, -1);
1782         g_return_val_if_fail(msginfo != NULL, -1);
1783
1784         folder = dest->folder;
1785         if (dest->last_num < 0) folder->scan(folder, dest);
1786
1787         num = folder->move_msg(folder, dest, msginfo);
1788         if (num > 0) dest->last_num = num;
1789
1790         return num;
1791 }
1792 */
1793
1794 FolderItem *folder_item_move_recursive (FolderItem *src, FolderItem *dest)
1795 {
1796         GSList *mlist;
1797         FolderItem *new_item;
1798         FolderItem *next_item;
1799         GNode *srcnode;
1800         gchar *old_id, *new_id;
1801
1802         mlist = folder_item_get_msg_list(src);
1803
1804         /* move messages */
1805         debug_print("Moving %s to %s\n", src->path, dest->path);
1806         new_item = folder_create_folder(dest, g_basename(src->path));
1807         if (new_item == NULL) {
1808                 printf("Can't create folder\n");
1809                 return NULL;
1810         }
1811
1812         if (new_item->folder == NULL)
1813                 new_item->folder = dest->folder;
1814
1815         /* move messages */
1816         log_message(_("Moving %s to %s...\n"),
1817                         src->name, new_item->path);
1818         folder_item_move_msgs(new_item, mlist);
1819
1820         /*copy prefs*/
1821         folder_item_prefs_copy_prefs(src, new_item);
1822         new_item->collapsed = src->collapsed;
1823         new_item->thread_collapsed = src->thread_collapsed;
1824         new_item->threaded  = src->threaded;
1825         new_item->ret_rcpt  = src->ret_rcpt;
1826         new_item->hide_read_msgs = src->hide_read_msgs;
1827         new_item->sort_key  = src->sort_key;
1828         new_item->sort_type = src->sort_type;
1829
1830         prefs_matcher_write_config();
1831
1832         /* recurse */
1833         srcnode = src->folder->node;
1834         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
1835         srcnode = srcnode->children;
1836         while (srcnode != NULL) {
1837                 if (srcnode && srcnode->data) {
1838                         next_item = (FolderItem*) srcnode->data;
1839                         srcnode = srcnode->next;
1840                         if (folder_item_move_recursive(next_item, new_item) == NULL)
1841                                 return NULL;
1842                 }
1843         }
1844         old_id = folder_item_get_identifier(src);
1845         new_id = folder_item_get_identifier(new_item);
1846         debug_print("updating rules : %s => %s\n", old_id, new_id);
1847
1848         src->folder->klass->remove_folder(src->folder, src);
1849         folder_write_list();
1850
1851         if (old_id != NULL && new_id != NULL)
1852                 prefs_filtering_rename_path(old_id, new_id);
1853         g_free(old_id);
1854         g_free(new_id);
1855
1856         return new_item;
1857 }
1858
1859 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item)
1860 {
1861         FolderItem *tmp = dest->parent;
1862         gchar * src_identifier, * dst_identifier;
1863         gchar * phys_srcpath, * phys_dstpath;
1864         GNode *src_node;
1865
1866         while (tmp) {
1867                 if (tmp == src) {
1868                         return F_MOVE_FAILED_DEST_IS_CHILD;
1869                 }
1870                 tmp = tmp->parent;
1871         }
1872
1873         tmp = src->parent;
1874
1875         src_identifier = folder_item_get_identifier(src);
1876         dst_identifier = folder_item_get_identifier(dest);
1877
1878         if(dst_identifier == NULL && dest->folder && dest->parent == NULL) {
1879                 /* dest can be a root folder */
1880                 dst_identifier = folder_get_identifier(dest->folder);
1881         }
1882         if (src_identifier == NULL || dst_identifier == NULL) {
1883                 debug_print("Can't get identifiers\n");
1884                 return F_MOVE_FAILED;
1885         }
1886
1887         if (src->folder != dest->folder) {
1888                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
1889         }
1890
1891         phys_srcpath = folder_item_get_path(src);
1892         phys_dstpath = g_strconcat(folder_item_get_path(dest),G_DIR_SEPARATOR_S,g_basename(phys_srcpath),NULL);
1893
1894         if (src->parent == dest || src == dest) {
1895                 g_free(src_identifier);
1896                 g_free(dst_identifier);
1897                 g_free(phys_srcpath);
1898                 g_free(phys_dstpath);
1899                 return F_MOVE_FAILED_DEST_IS_PARENT;
1900         }
1901         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
1902         if ((tmp = folder_item_move_recursive(src, dest)) == NULL) {
1903                 return F_MOVE_FAILED;
1904         }
1905
1906         /* update rules */
1907         src_node = g_node_find(src->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, src);
1908         if (src_node)
1909                 g_node_destroy(src_node);
1910         else
1911                 debug_print("can't remove node: it's null!\n");
1912         /* not to much worry if remove fails, move has been done */
1913
1914         g_free(src_identifier);
1915         g_free(dst_identifier);
1916         g_free(phys_srcpath);
1917         g_free(phys_dstpath);
1918
1919         *new_item = tmp;
1920
1921         return F_MOVE_OK;
1922 }
1923
1924 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
1925 {
1926         GSList *list = NULL;
1927         gint ret;
1928
1929         list = g_slist_append(list, msginfo);
1930         ret = folder_item_move_msgs(dest, list);
1931         g_slist_free(list);
1932
1933         return ret;
1934 }
1935
1936 /*
1937 gint folder_item_move_msgs_with_dest(FolderItem *dest, GSList *msglist)
1938 {
1939         Folder *folder;
1940         gint num;
1941
1942         g_return_val_if_fail(dest != NULL, -1);
1943         g_return_val_if_fail(msglist != NULL, -1);
1944
1945         folder = dest->folder;
1946         if (dest->last_num < 0) folder->scan(folder, dest);
1947
1948         num = folder->move_msgs_with_dest(folder, dest, msglist);
1949         if (num > 0) dest->last_num = num;
1950         else dest->op_count = 0;
1951
1952         return num;
1953 }
1954 */
1955
1956 /**
1957  * Copy a list of messages to a new folder.
1958  *
1959  * \param dest Destination folder
1960  * \param msglist List of messages
1961  */
1962 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
1963 {
1964         Folder *folder;
1965         GSList *l;
1966         gint num, lastnum = -1;
1967         gboolean folderscan = FALSE;
1968         GRelation *relation;
1969
1970         g_return_val_if_fail(dest != NULL, -1);
1971         g_return_val_if_fail(msglist != NULL, -1);
1972
1973         folder = dest->folder;
1974
1975         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
1976
1977         relation = g_relation_new(2);
1978         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1979
1980         /*
1981          * Copy messages to destination folder and
1982          * store new message numbers in newmsgnums
1983          */
1984         if (folder->klass->copy_msgs != NULL) {
1985                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
1986                         g_relation_destroy(relation);
1987                         return -1;
1988                 }
1989         } else {
1990                 for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
1991                         MsgInfo * msginfo = (MsgInfo *) l->data;
1992
1993                         num = folder->klass->copy_msg(folder, dest, msginfo);
1994                         g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
1995                 }
1996         }
1997
1998         /* Read cache for dest folder */
1999         if (!dest->cache) folder_item_read_cache(dest);
2000
2001         /*
2002          * Fetch new MsgInfos for new messages in dest folder,
2003          * add them to the msgcache and update folder message counts
2004          */
2005         for (l = msglist; l != NULL; l = g_slist_next(l)) {
2006                 MsgInfo *msginfo = (MsgInfo *) l->data;
2007                 GTuples *tuples;
2008
2009                 tuples = g_relation_select(relation, msginfo, 0);
2010                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2011                 g_tuples_destroy(tuples);
2012
2013                 if (num >= 0) {
2014                         MsgInfo *newmsginfo;
2015
2016                         if (num == 0) {
2017                                 gchar *file;
2018
2019                                 if (!folderscan) {
2020                                         folder_item_scan_full(dest, FALSE);
2021                                         folderscan = TRUE;
2022                                 }
2023                                 file = folder_item_fetch_msg(msginfo->folder, msginfo->msgnum);
2024                                 num = folder_item_get_msg_num_by_file(dest, file);
2025                                 g_free(file);
2026                         }
2027
2028                         if (num > lastnum)
2029                                 lastnum = num;
2030
2031                         if (num == 0)
2032                                 continue;
2033
2034                         if (!folderscan &&
2035                             ((newmsginfo = folder->klass->get_msginfo(folder, dest, num)) != NULL)) {
2036                                 add_msginfo_to_cache(dest, newmsginfo, msginfo);
2037                                 procmsg_msginfo_free(newmsginfo);
2038                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2039                                 copy_msginfo_flags(msginfo, newmsginfo);
2040                                 procmsg_msginfo_free(newmsginfo);
2041                         }
2042                 }
2043         }
2044
2045         /*
2046          * Remove source messages from their folders if
2047          * copying was successfull and update folder
2048          * message counts
2049          */
2050         for (l = msglist; l != NULL; l = g_slist_next(l)) {
2051                 MsgInfo *msginfo = (MsgInfo *) l->data;
2052                 FolderItem *item = msginfo->folder;
2053                 GTuples *tuples;
2054
2055                 tuples = g_relation_select(relation, msginfo, 0);
2056                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2057                 g_tuples_destroy(tuples);
2058
2059                 if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
2060                         item->folder->klass->remove_msg(item->folder,
2061                                                         msginfo->folder,
2062                                                         msginfo->msgnum);
2063                         remove_msginfo_from_cache(item, msginfo);
2064                 }
2065         }
2066
2067         if (folder->klass->finished_copy)
2068                 folder->klass->finished_copy(folder, dest);
2069
2070         g_relation_destroy(relation);
2071         return lastnum;
2072 }
2073
2074 /*
2075 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
2076 {
2077         Folder *folder;
2078         gint num;
2079
2080         g_return_val_if_fail(dest != NULL, -1);
2081         g_return_val_if_fail(msginfo != NULL, -1);
2082
2083         folder = dest->folder;
2084         if (dest->last_num < 0) folder->scan(folder, dest);
2085
2086         num = folder->copy_msg(folder, dest, msginfo);
2087         if (num > 0) dest->last_num = num;
2088
2089         return num;
2090 }
2091 */
2092
2093 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
2094 {
2095         GSList msglist;
2096
2097         g_return_val_if_fail(dest != NULL, -1);
2098         g_return_val_if_fail(msginfo != NULL, -1);
2099
2100         msglist.data = msginfo;
2101         msglist.next = NULL;
2102
2103         return folder_item_copy_msgs(dest, &msglist);
2104 }
2105
2106 /*
2107 gint folder_item_copy_msgs_with_dest(FolderItem *dest, GSList *msglist)
2108 {
2109         Folder *folder;
2110         gint num;
2111
2112         g_return_val_if_fail(dest != NULL, -1);
2113         g_return_val_if_fail(msglist != NULL, -1);
2114
2115         folder = dest->folder;
2116         if (dest->last_num < 0) folder->scan(folder, dest);
2117
2118         num = folder->copy_msgs_with_dest(folder, dest, msglist);
2119         if (num > 0) dest->last_num = num;
2120         else dest->op_count = 0;
2121
2122         return num;
2123 }
2124 */
2125
2126 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
2127 {
2128         Folder *folder;
2129         gint num, lastnum = -1;
2130         GSList *l;
2131         gboolean folderscan = FALSE;
2132         GRelation *relation;
2133
2134         g_return_val_if_fail(dest != NULL, -1);
2135         g_return_val_if_fail(msglist != NULL, -1);
2136
2137         folder = dest->folder;
2138
2139         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
2140
2141         relation = g_relation_new(2);
2142         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2143
2144         /*
2145          * Copy messages to destination folder and
2146          * store new message numbers in newmsgnums
2147          */
2148         if (folder->klass->copy_msgs != NULL) {
2149                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
2150                         g_relation_destroy(relation);
2151                         return -1;
2152                 }
2153         } else {
2154                 for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
2155                         MsgInfo * msginfo = (MsgInfo *) l->data;
2156
2157                         num = folder->klass->copy_msg(folder, dest, msginfo);
2158                         g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
2159                 }
2160         }
2161
2162         /* Read cache for dest folder */
2163         if (!dest->cache) folder_item_read_cache(dest);
2164
2165         /*
2166          * Fetch new MsgInfos for new messages in dest folder,
2167          * add them to the msgcache and update folder message counts
2168          */
2169         for (l = msglist; l != NULL; l = g_slist_next(l)) {
2170                 MsgInfo *msginfo = (MsgInfo *) l->data;
2171                 GTuples *tuples;
2172
2173                 tuples = g_relation_select(relation, msginfo, 0);
2174                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2175                 g_tuples_destroy(tuples);
2176
2177                 if (num >= 0) {
2178                         MsgInfo *newmsginfo;
2179
2180                         if (num == 0) {
2181                                 gchar *file;
2182
2183                                 if (!folderscan) {
2184                                         folder_item_scan_full(dest, FALSE);
2185                                         folderscan = TRUE;
2186                                 }
2187                                 file = folder_item_fetch_msg(msginfo->folder, msginfo->msgnum);
2188                                 num = folder_item_get_msg_num_by_file(dest, file);
2189                                 g_free(file);
2190                         }
2191
2192                         if (num > lastnum)
2193                                 lastnum = num;
2194
2195                         if (num == 0)
2196                                 continue;
2197
2198                         if (!folderscan &&
2199                             ((newmsginfo = folder->klass->get_msginfo(folder, dest, num)) != NULL)) {
2200                                 newmsginfo = folder->klass->get_msginfo(folder, dest, num);
2201                                 add_msginfo_to_cache(dest, newmsginfo, msginfo);
2202                                 procmsg_msginfo_free(newmsginfo);
2203                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2204                                 copy_msginfo_flags(msginfo, newmsginfo);
2205                                 procmsg_msginfo_free(newmsginfo);
2206                         }
2207                 }
2208         }
2209
2210         if (folder->klass->finished_copy)
2211                 folder->klass->finished_copy(folder, dest);
2212
2213         g_relation_destroy(relation);
2214
2215         return lastnum;
2216 }
2217
2218 gint folder_item_remove_msg(FolderItem *item, gint num)
2219 {
2220         Folder *folder;
2221         gint ret;
2222         MsgInfo *msginfo;
2223
2224         g_return_val_if_fail(item != NULL, -1);
2225         folder = item->folder;
2226         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
2227
2228         if (!item->cache) folder_item_read_cache(item);
2229
2230         ret = folder->klass->remove_msg(folder, item, num);
2231
2232         msginfo = msgcache_get_msg(item->cache, num);
2233         if (msginfo != NULL) {
2234                 remove_msginfo_from_cache(item, msginfo);
2235                 procmsg_msginfo_free(msginfo);
2236         }
2237         folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
2238
2239         return ret;
2240 }
2241
2242 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
2243 {
2244         Folder *folder;
2245         gint ret = 0;
2246
2247         g_return_val_if_fail(item != NULL, -1);
2248         folder = item->folder;
2249         g_return_val_if_fail(folder != NULL, -1);
2250
2251         if (!item->cache) folder_item_read_cache(item);
2252
2253         while (msglist != NULL) {
2254                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
2255
2256                 ret = folder_item_remove_msg(item, msginfo->msgnum);
2257                 if (ret != 0) break;
2258                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2259                 msglist = msglist->next;
2260         }
2261
2262         return ret;
2263 }
2264
2265 gint folder_item_remove_all_msg(FolderItem *item)
2266 {
2267         Folder *folder;
2268         gint result;
2269
2270         g_return_val_if_fail(item != NULL, -1);
2271
2272         folder = item->folder;
2273
2274         g_return_val_if_fail(folder->klass->remove_all_msg != NULL, -1);
2275
2276         result = folder->klass->remove_all_msg(folder, item);
2277
2278         if (result == 0) {
2279                 if (folder->klass->finished_remove)
2280                         folder->klass->finished_remove(folder, item);
2281
2282                 folder_item_free_cache(item);
2283                 item->cache = msgcache_new();
2284
2285                 item->new_msgs = 0;
2286                 item->unread_msgs = 0;
2287                 item->unreadmarked_msgs = 0;
2288                 item->total_msgs = 0;
2289                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
2290         }
2291
2292         return result;
2293 }
2294
2295 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
2296 {
2297         g_return_if_fail(item != NULL);
2298         g_return_if_fail(msginfo != NULL);
2299
2300         if (item->folder->klass->change_flags != NULL) {
2301                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
2302         } else {
2303                 msginfo->flags.perm_flags = newflags;
2304         }
2305 }
2306
2307 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
2308 {
2309         Folder *folder;
2310
2311         g_return_val_if_fail(item != NULL, FALSE);
2312
2313         folder = item->folder;
2314
2315         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
2316
2317         return folder->klass->is_msg_changed(folder, item, msginfo);
2318 }
2319
2320 gchar *folder_item_get_cache_file(FolderItem *item)
2321 {
2322         gchar *path;
2323         gchar *file;
2324
2325         g_return_val_if_fail(item != NULL, NULL);
2326         g_return_val_if_fail(item->path != NULL, NULL);
2327
2328         path = folder_item_get_path(item);
2329         g_return_val_if_fail(path != NULL, NULL);
2330         if (!is_dir_exist(path))
2331                 make_dir_hier(path);
2332         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
2333         g_free(path);
2334
2335         return file;
2336 }
2337
2338 gchar *folder_item_get_mark_file(FolderItem *item)
2339 {
2340         gchar *path;
2341         gchar *file;
2342
2343         g_return_val_if_fail(item != NULL, NULL);
2344         g_return_val_if_fail(item->path != NULL, NULL);
2345
2346         path = folder_item_get_path(item);
2347         g_return_val_if_fail(path != NULL, NULL);
2348         if (!is_dir_exist(path))
2349                 make_dir_hier(path);
2350         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
2351         g_free(path);
2352
2353         return file;
2354 }
2355
2356 static gboolean folder_build_tree(GNode *node, gpointer data)
2357 {
2358         Folder *folder = FOLDER(data);
2359         FolderItem *item;
2360         XMLNode *xmlnode;
2361         GList *list;
2362         SpecialFolderItemType stype = F_NORMAL;
2363         const gchar *name = NULL;
2364         const gchar *path = NULL;
2365         PrefsAccount *account = NULL;
2366         gboolean no_sub = FALSE, no_select = FALSE, collapsed = FALSE,
2367                  threaded = TRUE, apply_sub = FALSE;
2368         gboolean ret_rcpt = FALSE, hidereadmsgs = FALSE,
2369                  thread_collapsed = FALSE; /* CLAWS */
2370         FolderSortKey sort_key = SORT_BY_NONE;
2371         FolderSortType sort_type = SORT_ASCENDING;
2372         gint new = 0, unread = 0, total = 0, unreadmarked = 0;
2373         time_t mtime = 0;
2374
2375         g_return_val_if_fail(node->data != NULL, FALSE);
2376         if (!node->parent) return FALSE;
2377
2378         xmlnode = node->data;
2379         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
2380                 g_warning("tag name != \"folderitem\"\n");
2381                 return FALSE;
2382         }
2383
2384         list = xmlnode->tag->attr;
2385         for (; list != NULL; list = list->next) {
2386                 XMLAttr *attr = list->data;
2387
2388                 if (!attr || !attr->name || !attr->value) continue;
2389                 if (!strcmp(attr->name, "type")) {
2390                         if (!strcasecmp(attr->value, "normal"))
2391                                 stype = F_NORMAL;
2392                         else if (!strcasecmp(attr->value, "inbox"))
2393                                 stype = F_INBOX;
2394                         else if (!strcasecmp(attr->value, "outbox"))
2395                                 stype = F_OUTBOX;
2396                         else if (!strcasecmp(attr->value, "draft"))
2397                                 stype = F_DRAFT;
2398                         else if (!strcasecmp(attr->value, "queue"))
2399                                 stype = F_QUEUE;
2400                         else if (!strcasecmp(attr->value, "trash"))
2401                                 stype = F_TRASH;
2402                 } else if (!strcmp(attr->name, "name"))
2403                         name = attr->value;
2404                 else if (!strcmp(attr->name, "path"))
2405                         path = attr->value;
2406                 else if (!strcmp(attr->name, "mtime"))
2407                         mtime = strtoul(attr->value, NULL, 10);
2408                 else if (!strcmp(attr->name, "new"))
2409                         new = atoi(attr->value);
2410                 else if (!strcmp(attr->name, "unread"))
2411                         unread = atoi(attr->value);
2412                 else if (!strcmp(attr->name, "unreadmarked"))
2413                         unreadmarked = atoi(attr->value);
2414                 else if (!strcmp(attr->name, "total"))
2415                         total = atoi(attr->value);
2416                 else if (!strcmp(attr->name, "no_sub"))
2417                         no_sub = *attr->value == '1' ? TRUE : FALSE;
2418                 else if (!strcmp(attr->name, "no_select"))
2419                         no_select = *attr->value == '1' ? TRUE : FALSE;
2420                 else if (!strcmp(attr->name, "collapsed"))
2421                         collapsed = *attr->value == '1' ? TRUE : FALSE;
2422                 else if (!strcmp(attr->name, "thread_collapsed"))
2423                         thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
2424                 else if (!strcmp(attr->name, "threaded"))
2425                         threaded =  *attr->value == '1' ? TRUE : FALSE;
2426                 else if (!strcmp(attr->name, "hidereadmsgs"))
2427                         hidereadmsgs =  *attr->value == '1' ? TRUE : FALSE;
2428                 else if (!strcmp(attr->name, "reqretrcpt"))
2429                         ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
2430                 else if (!strcmp(attr->name, "sort_key")) {
2431                         if (!strcmp(attr->value, "none"))
2432                                 sort_key = SORT_BY_NONE;
2433                         else if (!strcmp(attr->value, "number"))
2434                                 sort_key = SORT_BY_NUMBER;
2435                         else if (!strcmp(attr->value, "size"))
2436                                 sort_key = SORT_BY_SIZE;
2437                         else if (!strcmp(attr->value, "date"))
2438                                 sort_key = SORT_BY_DATE;
2439                         else if (!strcmp(attr->value, "from"))
2440                                 sort_key = SORT_BY_FROM;
2441                         else if (!strcmp(attr->value, "subject"))
2442                                 sort_key = SORT_BY_SUBJECT;
2443                         else if (!strcmp(attr->value, "score"))
2444                                 sort_key = SORT_BY_SCORE;
2445                         else if (!strcmp(attr->value, "label"))
2446                                 sort_key = SORT_BY_LABEL;
2447                         else if (!strcmp(attr->value, "mark"))
2448                                 sort_key = SORT_BY_MARK;
2449                         else if (!strcmp(attr->value, "unread"))
2450                                 sort_key = SORT_BY_STATUS;
2451                         else if (!strcmp(attr->value, "mime"))
2452                                 sort_key = SORT_BY_MIME;
2453                         else if (!strcmp(attr->value, "to"))
2454                                 sort_key = SORT_BY_TO;
2455                         else if (!strcmp(attr->value, "locked"))
2456                                 sort_key = SORT_BY_LOCKED;
2457                 } else if (!strcmp(attr->name, "sort_type")) {
2458                         if (!strcmp(attr->value, "ascending"))
2459                                 sort_type = SORT_ASCENDING;
2460                         else
2461                                 sort_type = SORT_DESCENDING;
2462                 } else if (!strcmp(attr->name, "account_id")) {
2463                         account = account_find_from_id(atoi(attr->value));
2464                         if (!account) g_warning("account_id: %s not found\n",
2465                                                 attr->value);
2466                 } else if (!strcmp(attr->name, "apply_sub"))
2467                         apply_sub = *attr->value == '1' ? TRUE : FALSE;
2468         }
2469
2470         item = folder_item_new(folder, name, path);
2471         item->stype = stype;
2472         item->mtime = mtime;
2473         item->new_msgs = new;
2474         item->unread_msgs = unread;
2475         item->unreadmarked_msgs = unreadmarked;
2476         item->total_msgs = total;
2477         item->no_sub = no_sub;
2478         item->no_select = no_select;
2479         item->collapsed = collapsed;
2480         item->thread_collapsed = thread_collapsed;
2481         item->threaded  = threaded;
2482         item->hide_read_msgs  = hidereadmsgs;
2483         item->ret_rcpt  = ret_rcpt;
2484         item->sort_key  = sort_key;
2485         item->sort_type = sort_type;
2486         item->node = node;
2487         item->parent = FOLDER_ITEM(node->parent->data);
2488         item->folder = folder;
2489         switch (stype) {
2490         case F_INBOX:  folder->inbox  = item; break;
2491         case F_OUTBOX: folder->outbox = item; break;
2492         case F_DRAFT:  folder->draft  = item; break;
2493         case F_QUEUE:  folder->queue  = item; break;
2494         case F_TRASH:  folder->trash  = item; break;
2495         default:       break;
2496         }
2497         item->account = account;
2498         item->apply_sub = apply_sub;
2499         folder_item_prefs_read_config(item);
2500
2501         node->data = item;
2502         xml_free_node(xmlnode);
2503
2504         return FALSE;
2505 }
2506
2507 static gboolean folder_read_folder_func(GNode *node, gpointer data)
2508 {
2509         Folder *folder;
2510         FolderItem *item;
2511         XMLNode *xmlnode;
2512         GList *list;
2513         FolderClass *class = NULL;
2514         const gchar *name = NULL;
2515         const gchar *path = NULL;
2516         PrefsAccount *account = NULL;
2517         gboolean collapsed = FALSE, threaded = TRUE, apply_sub = FALSE;
2518         gboolean ret_rcpt = FALSE, thread_collapsed = FALSE; /* CLAWS */
2519
2520         if (g_node_depth(node) != 2) return FALSE;
2521         g_return_val_if_fail(node->data != NULL, FALSE);
2522
2523         xmlnode = node->data;
2524         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
2525                 g_warning("tag name != \"folder\"\n");
2526                 return TRUE;
2527         }
2528         g_node_unlink(node);
2529         list = xmlnode->tag->attr;
2530         for (; list != NULL; list = list->next) {
2531                 XMLAttr *attr = list->data;
2532
2533                 if (!attr || !attr->name || !attr->value) continue;
2534                 if (!strcmp(attr->name, "type"))
2535                         class = folder_get_class_from_string(attr->value);
2536                 else if (!strcmp(attr->name, "name"))
2537                         name = attr->value;
2538                 else if (!strcmp(attr->name, "path"))
2539                         path = attr->value;
2540                 else if (!strcmp(attr->name, "collapsed"))
2541                         collapsed = *attr->value == '1' ? TRUE : FALSE;
2542                 else if (!strcmp(attr->name, "thread_collapsed"))
2543                         thread_collapsed = *attr->value == '1' ? TRUE : FALSE;
2544                 else if (!strcmp(attr->name, "threaded"))
2545                         threaded = *attr->value == '1' ? TRUE : FALSE;
2546                 else if (!strcmp(attr->name, "account_id")) {
2547                         account = account_find_from_id(atoi(attr->value));
2548                         if (!account) g_warning("account_id: %s not found\n",
2549                                                 attr->value);
2550                 } else if (!strcmp(attr->name, "apply_sub"))
2551                         apply_sub = *attr->value == '1' ? TRUE : FALSE;
2552                 else if (!strcmp(attr->name, "reqretrcpt"))
2553                         ret_rcpt = *attr->value == '1' ? TRUE : FALSE;
2554         }
2555
2556         folder = folder_new(class, name, path);
2557         g_return_val_if_fail(folder != NULL, FALSE);
2558         folder->account = account;
2559         if (account != NULL)
2560                 account->folder = REMOTE_FOLDER(folder);
2561         item = FOLDER_ITEM(folder->node->data);
2562         node->data = item;
2563         item->node = node;
2564         g_node_destroy(folder->node);
2565         folder->node = node;
2566         folder_add(folder);
2567         item->collapsed = collapsed;
2568         item->thread_collapsed = thread_collapsed;
2569         item->threaded  = threaded;
2570         item->account   = account;
2571         item->apply_sub = apply_sub;
2572         item->ret_rcpt  = ret_rcpt;
2573
2574         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
2575                         folder_build_tree, folder);
2576
2577         return FALSE;
2578 }
2579
2580 static gchar *folder_get_list_path(void)
2581 {
2582         static gchar *filename = NULL;
2583
2584         if (!filename)
2585                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2586                                         FOLDER_LIST, NULL);
2587
2588         return filename;
2589 }
2590
2591 #define PUT_ESCAPE_STR(fp, attr, str)                   \
2592 {                                                       \
2593         fputs(" " attr "=\"", fp);                      \
2594         xml_file_put_escape_str(fp, str);               \
2595         fputs("\"", fp);                                \
2596 }
2597
2598 static void folder_write_list_recursive(GNode *node, gpointer data)
2599 {
2600         FILE *fp = (FILE *)data;
2601         FolderItem *item;
2602         gint i, depth;
2603         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
2604                                                  "draft", "queue", "trash"};
2605         static gchar *sort_key_str[] = {"none", "number", "size", "date",
2606                                         "from", "subject", "score", "label",
2607                                         "mark", "unread", "mime", "to",
2608                                         "locked"};
2609         g_return_if_fail(node != NULL);
2610         g_return_if_fail(fp != NULL);
2611
2612         item = FOLDER_ITEM(node->data);
2613         g_return_if_fail(item != NULL);
2614
2615         depth = g_node_depth(node);
2616         for (i = 0; i < depth; i++)
2617                 fputs("    ", fp);
2618         if (depth == 1) {
2619                 Folder *folder = item->folder;
2620
2621                 fprintf(fp, "<folder type=\"%s\"", folder->klass->idstr);
2622                 if (folder->name)
2623                         PUT_ESCAPE_STR(fp, "name", folder->name);
2624                 if (FOLDER_TYPE(folder) == F_MH || FOLDER_TYPE(folder) == F_MBOX || FOLDER_TYPE(folder) == F_MAILDIR)
2625                         PUT_ESCAPE_STR(fp, "path",
2626                                        LOCAL_FOLDER(folder)->rootpath);
2627                 if (item->collapsed && node->children)
2628                         fputs(" collapsed=\"1\"", fp);
2629                 if (folder->account)
2630                         fprintf(fp, " account_id=\"%d\"",
2631                                 folder->account->account_id);
2632                 if (item->apply_sub)
2633                         fputs(" apply_sub=\"1\"", fp);
2634                 if (item->ret_rcpt)
2635                         fputs(" reqretrcpt=\"1\"", fp);
2636         } else {
2637                 fprintf(fp, "<folderitem type=\"%s\"",
2638                         folder_item_stype_str[item->stype]);
2639                 if (item->name)
2640                         PUT_ESCAPE_STR(fp, "name", item->name);
2641                 if (item->path)
2642                         PUT_ESCAPE_STR(fp, "path", item->path);
2643
2644                 if (item->no_sub)
2645                         fputs(" no_sub=\"1\"", fp);
2646                 if (item->no_select)
2647                         fputs(" no_select=\"1\"", fp);
2648                 if (item->collapsed && node->children)
2649                         fputs(" collapsed=\"1\"", fp);
2650                 else
2651                         fputs(" collapsed=\"0\"", fp);
2652                 if (item->thread_collapsed)
2653                         fputs(" thread_collapsed=\"1\"", fp);
2654                 else
2655                         fputs(" thread_collapsed=\"0\"", fp);
2656                 if (item->threaded)
2657                         fputs(" threaded=\"1\"", fp);
2658                 else
2659                         fputs(" threaded=\"0\"", fp);
2660                 if (item->hide_read_msgs)
2661                         fputs(" hidereadmsgs=\"1\"", fp);
2662                 else
2663                         fputs(" hidereadmsgs=\"0\"", fp);
2664                 if (item->ret_rcpt)
2665                         fputs(" reqretrcpt=\"1\"", fp);
2666
2667                 if (item->sort_key != SORT_BY_NONE) {
2668                         fprintf(fp, " sort_key=\"%s\"",
2669                                 sort_key_str[item->sort_key]);
2670                         if (item->sort_type == SORT_ASCENDING)
2671                                 fprintf(fp, " sort_type=\"ascending\"");
2672                         else
2673                                 fprintf(fp, " sort_type=\"descending\"");
2674                 }
2675
2676                 fprintf(fp,
2677                         " mtime=\"%lu\" new=\"%d\" unread=\"%d\" unreadmarked=\"%d\" total=\"%d\"",
2678                         item->mtime, item->new_msgs, item->unread_msgs, item->unreadmarked_msgs, item->total_msgs);
2679
2680                 if (item->account)
2681                         fprintf(fp, " account_id=\"%d\"",
2682                                 item->account->account_id);
2683                 if (item->apply_sub)
2684                         fputs(" apply_sub=\"1\"", fp);
2685         }
2686
2687         if (node->children) {
2688                 GNode *child;
2689                 fputs(">\n", fp);
2690
2691                 child = node->children;
2692                 while (child) {
2693                         GNode *cur;
2694
2695                         cur = child;
2696                         child = cur->next;
2697                         folder_write_list_recursive(cur, data);
2698                 }
2699
2700                 for (i = 0; i < depth; i++)
2701                         fputs("    ", fp);
2702                 fprintf(fp, "</%s>\n", depth == 1 ? "folder" : "folderitem");
2703         } else
2704                 fputs(" />\n", fp);
2705 }
2706
2707 static void folder_update_op_count_rec(GNode *node)
2708 {
2709         FolderItem *fitem = FOLDER_ITEM(node->data);
2710
2711         if (g_node_depth(node) > 0) {
2712                 if (fitem->op_count > 0) {
2713                         fitem->op_count = 0;
2714                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
2715                 }
2716                 if (node->children) {
2717                         GNode *child;
2718
2719                         child = node->children;
2720                         while (child) {
2721                                 GNode *cur;
2722
2723                                 cur = child;
2724                                 child = cur->next;
2725                                 folder_update_op_count_rec(cur);
2726                         }
2727                 }
2728         }
2729 }
2730
2731 void folder_update_op_count(void)
2732 {
2733         GList *cur;
2734         Folder *folder;
2735
2736         for (cur = folder_list; cur != NULL; cur = cur->next) {
2737                 folder = cur->data;
2738                 folder_update_op_count_rec(folder->node);
2739         }
2740 }
2741
2742 typedef struct _type_str {
2743         gchar * str;
2744         gint type;
2745 } type_str;
2746
2747
2748 /*
2749 static gchar * folder_item_get_tree_identifier(FolderItem * item)
2750 {
2751         if (item->parent != NULL) {
2752                 gchar * path;
2753                 gchar * id;
2754
2755                 path = folder_item_get_tree_identifier(item->parent);
2756                 if (path == NULL)
2757                         return NULL;
2758
2759                 id = g_strconcat(path, "/", item->name, NULL);
2760                 g_free(path);
2761
2762                 return id;
2763         }
2764         else {
2765                 return g_strconcat("/", item->name, NULL);
2766         }
2767 }
2768 */
2769
2770 /* CLAWS: temporary local folder for filtering */
2771 #define TEMP_FOLDER "TEMP_FOLDER"
2772 #define PROCESSING_FOLDER_ITEM "processing"
2773
2774 static FolderItem *processing_folder_item;
2775
2776 static void folder_create_processing_folder(void)
2777 {
2778         Folder *processing_folder;
2779         gchar      *tmpname;
2780
2781         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
2782                 gchar *tmppath;
2783
2784                 tmppath =
2785                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
2786                                 "tempfolder", NULL);
2787                 processing_folder =
2788                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
2789                 g_free(tmppath);
2790         }
2791         g_assert(processing_folder != NULL);
2792
2793         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
2794         if (LOCAL_FOLDER(processing_folder)->rootpath[0] == '/')
2795                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
2796                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
2797                                       NULL);
2798         else
2799                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
2800                                       LOCAL_FOLDER(processing_folder)->rootpath,
2801                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
2802                                       NULL);
2803
2804         if (!is_dir_exist(tmpname)) {
2805                 debug_print("*TMP* creating %s\n", tmpname);
2806                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
2807                                                                                  processing_folder->node->data,
2808                                                                                  PROCESSING_FOLDER_ITEM);
2809         } else {
2810                 debug_print("*TMP* already created\n");
2811                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
2812                 g_assert(processing_folder_item);
2813                 folder_item_append(processing_folder->node->data, processing_folder_item);
2814         }
2815         g_assert(processing_folder_item != NULL);
2816         g_free(tmpname);
2817 }
2818
2819 FolderItem *folder_get_default_processing(void)
2820 {
2821         if (!processing_folder_item) {
2822                 folder_create_processing_folder();
2823         }
2824         return processing_folder_item;
2825 }
2826
2827 /* folder_persist_prefs_new() - return hash table with persistent
2828  * settings (and folder name as key).
2829  * (note that in claws other options are in the folder_item_prefs_RC
2830  * file, so those don't need to be included in PersistPref yet)
2831  */
2832 GHashTable *folder_persist_prefs_new(Folder *folder)
2833 {
2834         GHashTable *pptable;
2835
2836         g_return_val_if_fail(folder, NULL);
2837         pptable = g_hash_table_new(g_str_hash, g_str_equal);
2838         folder_get_persist_prefs_recursive(folder->node, pptable);
2839         return pptable;
2840 }
2841
2842 void folder_persist_prefs_free(GHashTable *pptable)
2843 {
2844         g_return_if_fail(pptable);
2845         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
2846         g_hash_table_destroy(pptable);
2847 }
2848
2849 const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
2850 {
2851         if (pptable == NULL || name == NULL) return NULL;
2852         return g_hash_table_lookup(pptable, name);
2853 }
2854
2855 void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
2856 {
2857         const PersistPrefs *pp;
2858         gchar *id = folder_item_get_identifier(item);
2859
2860         pp = folder_get_persist_prefs(pptable, id);
2861         g_free(id);
2862
2863         if (!pp) return;
2864
2865         /* CLAWS: since not all folder properties have been migrated to
2866          * folderlist.xml, we need to call the old stuff first before
2867          * setting things that apply both to Main and Claws. */
2868         folder_item_prefs_read_config(item);
2869
2870         item->collapsed = pp->collapsed;
2871         item->thread_collapsed = pp->thread_collapsed;
2872         item->threaded  = pp->threaded;
2873         item->ret_rcpt  = pp->ret_rcpt;
2874         item->hide_read_msgs = pp->hide_read_msgs;
2875         item->sort_key  = pp->sort_key;
2876         item->sort_type = pp->sort_type;
2877 }
2878
2879 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
2880 {
2881         FolderItem *item = FOLDER_ITEM(node->data);
2882         PersistPrefs *pp;
2883         GNode *child, *cur;
2884         gchar *id;
2885
2886         g_return_if_fail(node != NULL);
2887         g_return_if_fail(item != NULL);
2888
2889         /* NOTE: item->path == NULL means top level folder; not interesting
2890          * to store preferences of that one.  */
2891         if (item->path) {
2892                 id = folder_item_get_identifier(item);
2893                 pp = g_new0(PersistPrefs, 1);
2894                 g_return_if_fail(pp != NULL);
2895                 pp->collapsed = item->collapsed;
2896                 pp->thread_collapsed = item->thread_collapsed;
2897                 pp->threaded  = item->threaded;
2898                 pp->ret_rcpt  = item->ret_rcpt;
2899                 pp->hide_read_msgs = item->hide_read_msgs;
2900                 pp->sort_key  = item->sort_key;
2901                 pp->sort_type = item->sort_type;
2902                 g_hash_table_insert(pptable, id, pp);
2903         }
2904
2905         if (node->children) {
2906                 child = node->children;
2907                 while (child) {
2908                         cur = child;
2909                         child = cur->next;
2910                         folder_get_persist_prefs_recursive(cur, pptable);
2911                 }
2912         }
2913 }
2914
2915 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
2916 {
2917         if (key)
2918                 g_free(key);
2919         if (val)
2920                 g_free(val);
2921         return TRUE;
2922 }
2923
2924 void folder_item_apply_processing(FolderItem *item)
2925 {
2926         GSList *processing_list;
2927         GSList *mlist, *cur;
2928
2929         g_return_if_fail(item != NULL);
2930
2931         processing_list = item->prefs->processing;
2932         if (processing_list == NULL)
2933                 return;
2934
2935         folder_item_update_freeze();
2936
2937         mlist = folder_item_get_msg_list(item);
2938         for (cur = mlist ; cur != NULL ; cur = cur->next) {
2939                 MsgInfo * msginfo;
2940
2941                 msginfo = (MsgInfo *) cur->data;
2942                 filter_message_by_msginfo(processing_list, msginfo);
2943                 procmsg_msginfo_free(msginfo);
2944         }
2945         g_slist_free(mlist);
2946
2947         folder_item_update_thaw();
2948 }
2949
2950 /*
2951  *  functions for handling FolderItem content changes
2952  */
2953 static gint folder_item_update_freeze_cnt = 0;
2954
2955 /**
2956  * Notify the folder system about changes to a folder. If the
2957  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
2958  * be invoked, otherwise the changes will be remebered until
2959  * the folder system is thawed.
2960  *
2961  * \param item The FolderItem that was changed
2962  * \param update_flags Type of changed that was made
2963  */
2964 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
2965 {
2966         if (folder_item_update_freeze_cnt == 0) {
2967                 FolderItemUpdateData source;
2968
2969                 source.item = item;
2970                 source.update_flags = update_flags;
2971                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
2972         } else {
2973                 item->update_flags |= update_flags;
2974         }
2975 }
2976
2977 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
2978 {
2979         GNode *node = item->folder->node;
2980
2981         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
2982         node = node->children;
2983
2984         folder_item_update(item, update_flags);
2985         while (node != NULL) {
2986                 if (node && node->data) {
2987                         FolderItem *next_item = (FolderItem*) node->data;
2988
2989                         folder_item_update(next_item, update_flags);
2990                 }
2991                 node = node->next;
2992         }
2993 }
2994
2995 void folder_item_update_freeze(void)
2996 {
2997         folder_item_update_freeze_cnt++;
2998 }
2999
3000 static void folder_item_update_func(FolderItem *item, gpointer data)
3001 {
3002         FolderItemUpdateData source;
3003
3004         if (item->update_flags) {
3005                 source.item = item;
3006                 source.update_flags = item->update_flags;
3007                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3008                 item->update_flags = 0;
3009         }
3010 }
3011
3012 void folder_item_update_thaw(void)
3013 {
3014         if (folder_item_update_freeze_cnt > 0)
3015                 folder_item_update_freeze_cnt--;
3016         if (folder_item_update_freeze_cnt == 0) {
3017                 /* Update all folders */
3018                 folder_func_to_all_folders(folder_item_update_func, NULL);
3019         }
3020 }
3021
3022 #undef PUT_ESCAPE_STR