src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include "defs.h"
  26
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #include <unistd.h>
  34 #include <stdlib.h>
  35 #ifdef WIN32
  36 #include <w32lib.h>
  37 #endif
  38
  39 #include "folder.h"
  40 #include "session.h"
  41 #include "inc.h"
  42 #include "imap.h"
  43 #include "news.h"
  44 #include "mh.h"
  45 #include "utils.h"
  46 #include "xml.h"
  47 #include "codeconv.h"
  48 #include "prefs_gtk.h"
  49 #include "account.h"
  50 #include "filtering.h"
  51 #include "procheader.h"
  52 #include "hooks.h"
  53 #include "log.h"
  54 #include "folder_item_prefs.h"
  55 #include "remotefolder.h"
  56 #include "partial_download.h"
  57 #include "statusbar.h"
  58 #include "gtkutils.h"
  59 #include "timing.h"
  60 #include "compose.h"
  61 #include "main.h"
  62 #include "msgcache.h"
  63 #include "privacy.h"
  64
  65 /* Dependecies to be removed ?! */
  66 #include "prefs_common.h"
  67 #include "prefs_account.h"
  68
  69 /* Define possible missing constants for Windows. */
  70 #ifdef G_OS_WIN32
  71 # ifndef S_IRGRP
  72 # define S_IRGRP 0
  73 # define S_IWGRP 0
  74 # endif
  75 # ifndef S_IROTH
  76 # define S_IROTH 0
  77 # define S_IWOTH 0
  78 # endif
  79 #endif
  80
  81 static GList *folder_list = NULL;
  82 static GSList *class_list = NULL;
  83 static GSList *folder_unloaded_list = NULL;
  84
  85 void folder_init                (Folder         *folder,
  86                                  const gchar    *name);
  87
  88 static gchar *folder_item_get_cache_file        (FolderItem     *item);
  89 static gchar *folder_item_get_mark_file (FolderItem     *item);
  90 static gchar *folder_item_get_tags_file (FolderItem     *item);
  91 static GNode *folder_get_xml_node       (Folder         *folder);
  92 static Folder *folder_get_from_xml      (GNode          *node);
  93 static void folder_update_op_count_rec  (GNode          *node);
  94
  95
  96 static void folder_get_persist_prefs_recursive
  97                                         (GNode *node, GHashTable *pptable);
  98 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  99 static void folder_item_read_cache              (FolderItem *item);
 100 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
 101 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
 102                                          MsgInfo *msg);
 103 static GHashTable *folder_persist_prefs_new     (Folder *folder);
 104 static void folder_persist_prefs_free           (GHashTable *pptable);
 105 static void folder_item_restore_persist_prefs   (FolderItem *item, GHashTable *pptable);
 106
 107 void folder_system_init(void)
 108 {
 109         folder_register_class(mh_get_class());
 110         folder_register_class(imap_get_class());
 111         folder_register_class(news_get_class());
 112 }
 113
 114 static GSList *folder_get_class_list(void)
 115 {
 116         return class_list;
 117 }
 118
 119 void folder_register_class(FolderClass *klass)
 120 {
 121         GSList *xmllist, *cur;
 122
 123         debug_print("registering folder class %s\n", klass->idstr);
 124
 125         class_list = g_slist_append(class_list, klass);
 126
 127         xmllist = g_slist_copy(folder_unloaded_list);
 128         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
 129                 GNode *node = (GNode *) cur->data;
 130                 XMLNode *xmlnode = (XMLNode *) node->data;
 131                 GList *cur = xmlnode->tag->attr;
 132
 133                 for (; cur != NULL; cur = g_list_next(cur)) {
 134                         XMLAttr *attr = (XMLAttr *) cur->data;
 135
 136                         if (!attr || !attr->name || !attr->value) continue;
 137                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
 138                                 Folder *folder;
 139
 140                                 folder = folder_get_from_xml(node);
 141                                 if (folder) {
 142                                         folder_add(folder);
 143                                         folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
 144                                 }
 145                                 cur = NULL;
 146                                 continue;
 147                         }
 148                 }
 149         }
 150         g_slist_free(xmllist);
 151 }
 152
 153 void folder_unregister_class(FolderClass *klass)
 154 {
 155         GList *folderlist, *cur;
 156
 157         debug_print("unregistering folder class %s\n", klass->idstr);
 158
 159         class_list = g_slist_remove(class_list, klass);
 160
 161         folderlist = g_list_copy(folder_get_list());
 162         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 163                 Folder *folder = (Folder *) cur->data;
 164
 165                 if (folder->klass == klass) {
 166                         GNode *xmlnode = folder_get_xml_node(folder);
 167                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
 168                         folder_destroy(folder);
 169                 }
 170         }
 171         g_list_free(folderlist);
 172
 173         if (klass->prefs_pages)
 174                 g_slist_free(klass->prefs_pages);
 175 }
 176
 177 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 178 {
 179         Folder *folder = NULL;
 180         FolderItem *item;
 181
 182         cm_return_val_if_fail(klass != NULL, NULL);
 183
 184         name = name ? name : path;
 185         folder = klass->new_folder(name, path);
 186
 187         /* Create root folder item */
 188         item = folder_item_new(folder, name, NULL);
 189         if (item == NULL) {
 190                 return NULL;
 191         }
 192         item->folder = folder;
 193         folder->node = item->node = g_node_new(item);
 194         folder->data = NULL;
 195
 196         return folder;
 197 }
 198
 199 void folder_init(Folder *folder, const gchar *name)
 200 {
 201         cm_return_if_fail(folder != NULL);
 202
 203         folder_set_name(folder, name);
 204
 205         /* Init folder data */
 206         folder->account = NULL;
 207         folder->sort = 0;
 208         folder->inbox = NULL;
 209         folder->outbox = NULL;
 210         folder->draft = NULL;
 211         folder->queue = NULL;
 212         folder->trash = NULL;
 213 }
 214
 215 static void reset_parent_type(FolderItem *item, gpointer data) {
 216         item->parent_stype = -1;
 217 }
 218
 219 void folder_item_change_type(FolderItem *item, SpecialFolderItemType newtype)
 220 {
 221         Folder *folder = NULL;
 222         FolderUpdateData hookdata;
 223
 224         if (item == NULL)
 225                 return;
 226
 227         folder = item->folder;
 228         /* unset previous root of newtype */
 229         switch(newtype) {
 230         case F_INBOX:
 231                 folder_item_change_type(folder->inbox, F_NORMAL);
 232                 folder->inbox = item;
 233                 break;
 234         case F_OUTBOX:
 235                 folder_item_change_type(folder->outbox, F_NORMAL);
 236                 folder->outbox = item;
 237                 break;
 238         case F_QUEUE:
 239                 folder_item_change_type(folder->queue, F_NORMAL);
 240                 folder->queue = item;
 241                 break;
 242         case F_DRAFT:
 243                 folder_item_change_type(folder->draft, F_NORMAL);
 244                 folder->draft = item;
 245                 break;
 246         case F_TRASH:
 247                 folder_item_change_type(folder->trash, F_NORMAL);
 248                 folder->trash = item;
 249                 break;
 250         case F_NORMAL:
 251         default:
 252                 break;
 253         }
 254         /* set new type for current folder and sons */
 255         item->stype = newtype;
 256         folder_func_to_all_folders(reset_parent_type, NULL);
 257
 258         hookdata.folder = folder;
 259         hookdata.update_flags = FOLDER_TREE_CHANGED;
 260         hookdata.item = NULL;
 261         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 262 }
 263
 264 void folder_destroy(Folder *folder)
 265 {
 266         cm_return_if_fail(folder != NULL);
 267         cm_return_if_fail(folder->klass->destroy_folder != NULL);
 268
 269         folder_remove(folder);
 270
 271         folder_tree_destroy(folder);
 272
 273         folder->klass->destroy_folder(folder);
 274
 275         g_free(folder->name);
 276         g_free(folder);
 277 }
 278
 279 void folder_set_xml(Folder *folder, XMLTag *tag)
 280 {
 281         GList *cur;
 282         FolderItem *rootitem = NULL;
 283
 284         if ((folder->node != NULL) && (folder->node->data != NULL))
 285                 rootitem = (FolderItem *) folder->node->data;
 286
 287         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 288                 XMLAttr *attr = (XMLAttr *) cur->data;
 289
 290                 if (!attr || !attr->name || !attr->value) continue;
 291                 if (!strcmp(attr->name, "name")) {
 292                         g_free(folder->name);
 293                         folder->name = g_strdup(attr->value);
 294                         if (rootitem != NULL) {
 295                                 g_free(rootitem->name);
 296                                 rootitem->name = g_strdup(attr->value);
 297                         }
 298                 } else if (!strcmp(attr->name, "account_id")) {
 299                         PrefsAccount *account;
 300
 301                         account = account_find_from_id(atoi(attr->value));
 302                         if (!account)
 303                                 g_warning("account_id: %s not found\n", attr->value);
 304                         else {
 305                                 folder->account = account;
 306                                 account->folder = folder;
 307                         }
 308                 } else if (!strcmp(attr->name, "collapsed")) {
 309                         if (rootitem != NULL)
 310                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 311                 } else if (!strcmp(attr->name, "sort")) {
 312                         folder->sort = atoi(attr->value);
 313                 }
 314         }
 315 }
 316
 317 XMLTag *folder_get_xml(Folder *folder)
 318 {
 319         XMLTag *tag;
 320
 321         tag = xml_tag_new("folder");
 322
 323         if (folder->name)
 324                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
 325         if (folder->account)
 326                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
 327         if (folder->node && folder->node->data) {
 328                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 329
 330                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
 331         }
 332         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
 333
 334         return tag;
 335 }
 336
 337 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 338 {
 339         FolderItem *item = NULL;
 340
 341         cm_return_val_if_fail(folder != NULL, NULL);
 342
 343         if (folder->klass->item_new) {
 344                 item = folder->klass->item_new(folder);
 345         } else {
 346                 item = g_new0(FolderItem, 1);
 347         }
 348
 349         cm_return_val_if_fail(item != NULL, NULL);
 350
 351         item->stype = F_NORMAL;
 352
 353         if(!g_utf8_validate(name, -1, NULL)) {
 354                 item->name = g_malloc(strlen(name)*2+1);
 355                 conv_localetodisp(item->name, strlen(name)*2+1, name);
 356         } else {
 357                 item->name = g_strdup(name);
 358         }
 359
 360         item->path = g_strdup(path);
 361         item->mtime = 0;
 362         item->new_msgs = 0;
 363         item->unread_msgs = 0;
 364         item->unreadmarked_msgs = 0;
 365         item->marked_msgs = 0;
 366         item->total_msgs = 0;
 367         item->replied_msgs = 0;
 368         item->forwarded_msgs = 0;
 369         item->locked_msgs = 0;
 370         item->ignored_msgs = 0;
 371         item->watched_msgs = 0;
 372         item->order = 0;
 373         item->last_num = -1;
 374         item->cache = NULL;
 375         item->no_sub = FALSE;
 376         item->no_select = FALSE;
 377         item->collapsed = FALSE;
 378         item->thread_collapsed = FALSE;
 379         item->threaded  = TRUE;
 380         item->ret_rcpt  = FALSE;
 381         item->opened    = FALSE;
 382         item->node = g_node_new(item);
 383         item->folder = NULL;
 384         item->account = NULL;
 385         item->apply_sub = FALSE;
 386         item->mark_queue = NULL;
 387         item->data = NULL;
 388         item->parent_stype = -1;
 389
 390         item->sort_key = SORT_BY_DATE;
 391         item->sort_type = SORT_ASCENDING;
 392
 393         item->prefs = folder_item_prefs_new();
 394
 395         return item;
 396 }
 397
 398 void folder_item_append(FolderItem *parent, FolderItem *item)
 399 {
 400         cm_return_if_fail(parent != NULL);
 401         cm_return_if_fail(parent->folder != NULL);
 402         cm_return_if_fail(parent->node != NULL);
 403         cm_return_if_fail(item != NULL);
 404
 405         item->folder = parent->folder;
 406         g_node_append(parent->node, item->node);
 407 }
 408
 409 void folder_item_remove(FolderItem *item)
 410 {
 411         GNode *node, *start_node;
 412         FolderUpdateData hookdata;
 413         gchar *tags_file = NULL, *tags_dir = NULL;
 414
 415         cm_return_if_fail(item != NULL);
 416         cm_return_if_fail(item->folder != NULL);
 417         cm_return_if_fail(item->folder->node != NULL);
 418
 419         start_node = item->node;
 420
 421         node = item->folder->node;
 422
 423         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 424         node = node->children;
 425
 426         /* remove my children */
 427         while (node != NULL) {
 428                 if (node && node->data) {
 429                         FolderItem *sub_item = (FolderItem*) node->data;
 430                         node = node->next;
 431                         folder_item_remove(sub_item);
 432                 }
 433         }
 434
 435         /* remove myself */
 436         if (item->cache != NULL) {
 437                 msgcache_destroy(item->cache);
 438                 item->cache = NULL;
 439         }
 440         tags_file = folder_item_get_tags_file(item);
 441         if (tags_file)
 442                 claws_unlink(tags_file);
 443         tags_dir = g_path_get_dirname(tags_file);
 444         if (tags_dir)
 445                 rmdir(tags_dir);
 446
 447         g_free(tags_file);
 448         g_free(tags_dir);
 449
 450         hookdata.folder = item->folder;
 451         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 452         hookdata.item = item;
 453         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 454
 455         node = start_node;
 456
 457         if (item->folder->node == node)
 458                 item->folder->node = NULL;
 459
 460         folder_item_destroy(item);
 461
 462         g_node_destroy(node);
 463 }
 464
 465 void folder_item_remove_children(FolderItem *item)
 466 {
 467         GNode *node, *next;
 468
 469         cm_return_if_fail(item != NULL);
 470         cm_return_if_fail(item->folder != NULL);
 471         cm_return_if_fail(item->node != NULL);
 472
 473         node = item->node->children;
 474         while (node != NULL) {
 475                 next = node->next;
 476                 folder_item_remove(FOLDER_ITEM(node->data));
 477                 node = next;
 478         }
 479 }
 480
 481 void folder_item_destroy(FolderItem *item)
 482 {
 483         Folder *folder;
 484
 485         cm_return_if_fail(item != NULL);
 486
 487         folder = item->folder;
 488         if (folder) {
 489                 if (folder->inbox == item)
 490                         folder->inbox = NULL;
 491                 else if (folder->outbox == item)
 492                         folder->outbox = NULL;
 493                 else if (folder->draft == item)
 494                         folder->draft = NULL;
 495                 else if (folder->queue == item)
 496                         folder->queue = NULL;
 497                 else if (folder->trash == item)
 498                         folder->trash = NULL;
 499         }
 500
 501         if (item->cache)
 502                 folder_item_free_cache(item, TRUE);
 503         if (item->prefs)
 504                 folder_item_prefs_free(item->prefs);
 505         g_free(item->name);
 506         g_free(item->path);
 507
 508         if (item->folder != NULL) {
 509                 if(item->folder->klass->item_destroy) {
 510                         item->folder->klass->item_destroy(item->folder, item);
 511                 } else {
 512                         g_free(item);
 513                 }
 514         }
 515 }
 516
 517 FolderItem *folder_item_parent(FolderItem *item)
 518 {
 519         cm_return_val_if_fail(item != NULL, NULL);
 520         cm_return_val_if_fail(item->node != NULL, NULL);
 521
 522         if (item->node->parent == NULL)
 523                 return NULL;
 524         return (FolderItem *) item->node->parent->data;
 525 }
 526
 527 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 528 {
 529         GList *cur;
 530
 531         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 532                 XMLAttr *attr = (XMLAttr *) cur->data;
 533
 534                 if (!attr || !attr->name || !attr->value) continue;
 535                 if (!strcmp(attr->name, "type")) {
 536                         if (!g_ascii_strcasecmp(attr->value, "normal"))
 537                                 item->stype = F_NORMAL;
 538                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
 539                                 item->stype = F_INBOX;
 540                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
 541                                 item->stype = F_OUTBOX;
 542                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
 543                                 item->stype = F_DRAFT;
 544                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
 545                                 item->stype = F_QUEUE;
 546                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
 547                                 item->stype = F_TRASH;
 548                 } else if (!strcmp(attr->name, "name")) {
 549                         g_free(item->name);
 550                         item->name = g_strdup(attr->value);
 551                 } else if (!strcmp(attr->name, "path")) {
 552                         g_free(item->path);
 553                         item->path = g_strdup(attr->value);
 554                 } else if (!strcmp(attr->name, "mtime"))
 555                         item->mtime = strtoul(attr->value, NULL, 10);
 556                 else if (!strcmp(attr->name, "new"))
 557                         item->new_msgs = atoi(attr->value);
 558                 else if (!strcmp(attr->name, "unread"))
 559                         item->unread_msgs = atoi(attr->value);
 560                 else if (!strcmp(attr->name, "unreadmarked"))
 561                         item->unreadmarked_msgs = atoi(attr->value);
 562                 else if (!strcmp(attr->name, "marked"))
 563                         item->marked_msgs = atoi(attr->value);
 564                 else if (!strcmp(attr->name, "replied"))
 565                         item->replied_msgs = atoi(attr->value);
 566                 else if (!strcmp(attr->name, "forwarded"))
 567                         item->forwarded_msgs = atoi(attr->value);
 568                 else if (!strcmp(attr->name, "locked"))
 569                         item->locked_msgs = atoi(attr->value);
 570                 else if (!strcmp(attr->name, "ignored"))
 571                         item->ignored_msgs = atoi(attr->value);
 572                 else if (!strcmp(attr->name, "watched"))
 573                         item->watched_msgs = atoi(attr->value);
 574                 else if (!strcmp(attr->name, "order"))
 575                         item->order = atoi(attr->value);
 576                 else if (!strcmp(attr->name, "total"))
 577                         item->total_msgs = atoi(attr->value);
 578                 else if (!strcmp(attr->name, "no_sub"))
 579                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 580                 else if (!strcmp(attr->name, "no_select"))
 581                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 582                 else if (!strcmp(attr->name, "collapsed"))
 583                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 584                 else if (!strcmp(attr->name, "thread_collapsed"))
 585                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 586                 else if (!strcmp(attr->name, "threaded"))
 587                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 588                 else if (!strcmp(attr->name, "hidereadmsgs"))
 589                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 590                 else if (!strcmp(attr->name, "hidedelmsgs"))
 591                         item->hide_del_msgs =  *attr->value == '1' ? TRUE : FALSE;
 592                 else if (!strcmp(attr->name, "hidereadthreads"))
 593                         item->hide_read_threads =  *attr->value == '1' ? TRUE : FALSE;
 594                 else if (!strcmp(attr->name, "reqretrcpt"))
 595                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 596                 else if (!strcmp(attr->name, "sort_key")) {
 597                         if (!strcmp(attr->value, "none"))
 598                                 item->sort_key = SORT_BY_NONE;
 599                         else if (!strcmp(attr->value, "number"))
 600                                 item->sort_key = SORT_BY_NUMBER;
 601                         else if (!strcmp(attr->value, "size"))
 602                                 item->sort_key = SORT_BY_SIZE;
 603                         else if (!strcmp(attr->value, "date"))
 604                                 item->sort_key = SORT_BY_DATE;
 605                         else if (!strcmp(attr->value, "from"))
 606                                 item->sort_key = SORT_BY_FROM;
 607                         else if (!strcmp(attr->value, "subject"))
 608                                 item->sort_key = SORT_BY_SUBJECT;
 609                         else if (!strcmp(attr->value, "score"))
 610                                 item->sort_key = SORT_BY_SCORE;
 611                         else if (!strcmp(attr->value, "label"))
 612                                 item->sort_key = SORT_BY_LABEL;
 613                         else if (!strcmp(attr->value, "mark"))
 614                                 item->sort_key = SORT_BY_MARK;
 615                         else if (!strcmp(attr->value, "unread"))
 616                                 item->sort_key = SORT_BY_STATUS;
 617                         else if (!strcmp(attr->value, "mime"))
 618                                 item->sort_key = SORT_BY_MIME;
 619                         else if (!strcmp(attr->value, "to"))
 620                                 item->sort_key = SORT_BY_TO;
 621                         else if (!strcmp(attr->value, "locked"))
 622                                 item->sort_key = SORT_BY_LOCKED;
 623                         else if (!strcmp(attr->value, "tags"))
 624                                 item->sort_key = SORT_BY_TAGS;
 625                         else if (!strcmp(attr->value, "thread_date"))
 626                                 item->sort_key = SORT_BY_THREAD_DATE;
 627                 } else if (!strcmp(attr->name, "sort_type")) {
 628                         if (!strcmp(attr->value, "ascending"))
 629                                 item->sort_type = SORT_ASCENDING;
 630                         else
 631                                 item->sort_type = SORT_DESCENDING;
 632                 } else if (!strcmp(attr->name, "account_id")) {
 633                         PrefsAccount *account;
 634
 635                         account = account_find_from_id(atoi(attr->value));
 636                         if (!account)
 637                                 g_warning("account_id: %s not found\n", attr->value);
 638                         else
 639                                 item->account = account;
 640                 } else if (!strcmp(attr->name, "apply_sub")) {
 641                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 642                 } else if (!strcmp(attr->name, "last_seen")) {
 643                         if (!claws_crashed())
 644                                 item->last_seen = atoi(attr->value);
 645                         else
 646                                 item->last_seen = 0;
 647                 }
 648         }
 649 }
 650
 651 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 652 {
 653         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 654                                                  "draft", "queue", "trash"};
 655         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 656                                         "from", "subject", "score", "label",
 657                                         "mark", "unread", "mime", "to",
 658                                         "locked", "tags", "thread_date" };
 659         XMLTag *tag;
 660         gchar *value;
 661
 662         tag = xml_tag_new("folderitem");
 663
 664         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
 665         if (item->name)
 666                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
 667         if (item->path)
 668                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
 669         if (item->no_sub)
 670                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
 671         if (item->no_select)
 672                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
 673         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
 674         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
 675         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
 676         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
 677         xml_tag_add_attr(tag, xml_attr_new("hidedelmsgs", item->hide_del_msgs ? "1" : "0"));
 678         xml_tag_add_attr(tag, xml_attr_new("hidereadthreads", item->hide_read_threads ? "1" : "0"));
 679         if (item->ret_rcpt)
 680                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
 681
 682         if (item->sort_key != SORT_BY_NONE) {
 683                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
 684                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 685         }
 686
 687         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
 688         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
 689         g_free(value);
 690         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
 691         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
 692         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
 693         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
 694         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
 695         xml_tag_add_attr(tag, xml_attr_new_int("replied", item->replied_msgs));
 696         xml_tag_add_attr(tag, xml_attr_new_int("forwarded", item->forwarded_msgs));
 697         xml_tag_add_attr(tag, xml_attr_new_int("locked", item->locked_msgs));
 698         xml_tag_add_attr(tag, xml_attr_new_int("ignore", item->ignored_msgs));
 699         xml_tag_add_attr(tag, xml_attr_new_int("watched", item->watched_msgs));
 700         xml_tag_add_attr(tag, xml_attr_new_int("order", item->order));
 701
 702         if (item->account)
 703                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
 704         if (item->apply_sub)
 705                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
 706
 707         xml_tag_add_attr(tag, xml_attr_new_int("last_seen", item->last_seen));
 708
 709         return tag;
 710 }
 711
 712 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 713 {
 714         cm_return_if_fail(folder != NULL);
 715
 716         folder->ui_func = func;
 717         folder->ui_func_data = data;
 718 }
 719
 720 void folder_set_name(Folder *folder, const gchar *name)
 721 {
 722         cm_return_if_fail(folder != NULL);
 723
 724         g_free(folder->name);
 725         folder->name = name ? g_strdup(name) : NULL;
 726         if (folder->node && folder->node->data) {
 727                 FolderItem *item = (FolderItem *)folder->node->data;
 728
 729                 g_free(item->name);
 730                 item->name = name ? g_strdup(name) : NULL;
 731         }
 732 }
 733
 734 void folder_set_sort(Folder *folder, guint sort)
 735 {
 736         cm_return_if_fail(folder != NULL);
 737
 738         if (folder->sort != sort) {
 739                 folder_remove(folder);
 740                 folder->sort = sort;
 741                 folder_add(folder);
 742         }
 743 }
 744
 745 static gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 746         FolderItem *item = (FolderItem *) node->data;
 747
 748         folder_item_destroy(item);
 749         return FALSE;
 750 }
 751
 752 void folder_tree_destroy(Folder *folder)
 753 {
 754         GNode *node;
 755
 756         cm_return_if_fail(folder != NULL);
 757
 758         node = folder->node;
 759
 760         prefs_filtering_clear_folder(folder);
 761
 762         if (node != NULL) {
 763                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 764                                 folder_tree_destroy_func, NULL);
 765                 g_node_destroy(node);
 766                 folder->node = NULL;
 767         }
 768 }
 769
 770 void folder_add(Folder *folder)
 771 {
 772         Folder *cur_folder;
 773         GList *cur;
 774         gint i;
 775         FolderUpdateData hookdata;
 776
 777         cm_return_if_fail(folder != NULL);
 778
 779         if ((FOLDER_TYPE(folder) == F_IMAP ||
 780              FOLDER_TYPE(folder) == F_NEWS) &&
 781             folder->account == NULL) {
 782                 return;
 783         }
 784
 785         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 786                 cur_folder = FOLDER(cur->data);
 787                 if (cur_folder->sort < folder->sort)
 788                         break;
 789         }
 790
 791         folder_list = g_list_insert(folder_list, folder, i);
 792
 793         hookdata.folder = folder;
 794         hookdata.update_flags = FOLDER_ADD_FOLDER;
 795         hookdata.item = NULL;
 796         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 797 }
 798
 799 void folder_remove(Folder *folder)
 800 {
 801         FolderUpdateData hookdata;
 802
 803         cm_return_if_fail(folder != NULL);
 804
 805         folder_list = g_list_remove(folder_list, folder);
 806
 807         hookdata.folder = folder;
 808         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
 809         hookdata.item = NULL;
 810         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 811 }
 812
 813 GList *folder_get_list(void)
 814 {
 815         return folder_list;
 816 }
 817
 818 gint folder_read_list(void)
 819 {
 820         GNode *node, *cur;
 821         XMLNode *xmlnode;
 822         gchar *path;
 823
 824         path = folder_get_list_path();
 825         if (!is_file_exist(path)) return -1;
 826         node = xml_parse_file(path);
 827         if (!node) return -1;
 828
 829         xmlnode = node->data;
 830         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 831                 g_warning("wrong folder list\n");
 832                 xml_free_tree(node);
 833                 return -1;
 834         }
 835
 836         cur = node->children;
 837         while (cur != NULL) {
 838                 Folder *folder;
 839
 840                 folder = folder_get_from_xml(cur);
 841                 if (folder != NULL)
 842                         folder_add(folder);
 843                 else
 844                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 845                                 (gpointer) xml_copy_tree(cur));
 846                 cur = cur->next;
 847         }
 848
 849         xml_free_tree(node);
 850         if (folder_list || folder_unloaded_list)
 851                 return 0;
 852         else
 853                 return -1;
 854 }
 855
 856 void folder_write_list(void)
 857 {
 858         GList *list;
 859         GSList *slist;
 860         Folder *folder;
 861         gchar *path;
 862         PrefFile *pfile;
 863         GNode *rootnode;
 864         XMLNode *xmlnode;
 865         XMLTag *tag;
 866
 867         path = folder_get_list_path();
 868         if ((pfile = prefs_write_open(path)) == NULL) return;
 869
 870         if (xml_file_put_xml_decl(pfile->fp) < 0) {
 871                 prefs_file_close_revert(pfile);
 872                 g_warning("failed to start write folder list.\n");
 873                 return;
 874         }
 875         tag = xml_tag_new("folderlist");
 876
 877         xmlnode = xml_node_new(tag, NULL);
 878
 879         rootnode = g_node_new(xmlnode);
 880
 881         for (list = folder_list; list != NULL; list = list->next) {
 882                 GNode *node;
 883
 884                 folder = list->data;
 885                 node = folder_get_xml_node(folder);
 886                 if (node != NULL)
 887                         g_node_append(rootnode, node);
 888         }
 889
 890         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 891                 GNode *node = (GNode *) slist->data;
 892
 893                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
 894         }
 895
 896         if (xml_write_tree(rootnode, pfile->fp) < 0) {
 897                 prefs_file_close_revert(pfile);
 898                 g_warning("failed to write folder list.\n");
 899         } else if (prefs_file_close(pfile) < 0) {
 900                 g_warning("failed to write folder list.\n");
 901         }
 902         xml_free_tree(rootnode);
 903 }
 904
 905 static gboolean folder_scan_tree_func(GNode *node, gpointer data)
 906 {
 907         GHashTable *pptable = (GHashTable *)data;
 908         FolderItem *item = (FolderItem *)node->data;
 909
 910         folder_item_restore_persist_prefs(item, pptable);
 911         folder_item_scan_full(item, FALSE);
 912
 913         return FALSE;
 914 }
 915
 916 static gboolean folder_restore_prefs_func(GNode *node, gpointer data)
 917 {
 918         GHashTable *pptable = (GHashTable *)data;
 919         FolderItem *item = (FolderItem *)node->data;
 920
 921         folder_item_restore_persist_prefs(item, pptable);
 922
 923         return FALSE;
 924 }
 925
 926 void folder_scan_tree(Folder *folder, gboolean rebuild)
 927 {
 928         GHashTable *pptable;
 929         FolderUpdateData hookdata;
 930         Folder *old_folder = folder;
 931
 932         if (!folder->klass->scan_tree)
 933                 return;
 934
 935         pptable = folder_persist_prefs_new(folder);
 936
 937         if (rebuild)
 938                 folder_remove(folder);
 939
 940         if (folder->klass->scan_tree(folder) < 0) {
 941                 if (rebuild)
 942                         folder_add(old_folder);
 943                 return;
 944         } else if (rebuild)
 945                 folder_add(folder);
 946
 947         hookdata.folder = folder;
 948         hookdata.update_flags = FOLDER_TREE_CHANGED;
 949         hookdata.item = NULL;
 950         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 951
 952         if (rebuild)
 953                 g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 954         else
 955                 g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_restore_prefs_func, pptable);
 956
 957         folder_persist_prefs_free(pptable);
 958
 959         prefs_matcher_read_config();
 960
 961         folder_write_list();
 962 }
 963
 964 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 965 {
 966         FolderItem *new_item;
 967
 968         cm_return_val_if_fail(parent != NULL, NULL);
 969
 970         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 971         if (new_item) {
 972                 FolderUpdateData hookdata;
 973
 974                 new_item->cache = msgcache_new();
 975                 new_item->cache_dirty = TRUE;
 976                 new_item->mark_dirty = TRUE;
 977                 new_item->tags_dirty = TRUE;
 978
 979                 hookdata.folder = new_item->folder;
 980                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
 981                 hookdata.item = new_item;
 982                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 983         }
 984
 985         return new_item;
 986 }
 987
 988 gint folder_item_rename(FolderItem *item, gchar *newname)
 989 {
 990         gint retval;
 991
 992         cm_return_val_if_fail(item != NULL, -1);
 993         cm_return_val_if_fail(newname != NULL, -1);
 994
 995         retval = item->folder->klass->rename_folder(item->folder, item, newname);
 996
 997         if (retval >= 0) {
 998                 FolderItemUpdateData hookdata;
 999                 FolderUpdateData hookdata2;
1000
1001                 hookdata.item = item;
1002                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
1003                 hookdata.msg = NULL;
1004                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
1005
1006                 hookdata2.folder = item->folder;
1007                 hookdata2.item = item;
1008                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
1009                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
1010         }
1011
1012         return retval;
1013 }
1014
1015 struct TotalMsgCount
1016 {
1017         guint new_msgs;
1018         guint unread_msgs;
1019         guint unreadmarked_msgs;
1020         guint marked_msgs;
1021         guint total_msgs;
1022         guint replied_msgs;
1023         guint forwarded_msgs;
1024         guint locked_msgs;
1025         guint ignored_msgs;
1026         guint watched_msgs;
1027 };
1028
1029 struct FuncToAllFoldersData
1030 {
1031         FolderItemFunc  function;
1032         gpointer        data;
1033 };
1034
1035 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
1036 {
1037         FolderItem *item;
1038         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
1039
1040         cm_return_val_if_fail(node->data != NULL, FALSE);
1041
1042         item = FOLDER_ITEM(node->data);
1043         cm_return_val_if_fail(item != NULL, FALSE);
1044
1045         function_data->function(item, function_data->data);
1046
1047         return FALSE;
1048 }
1049
1050 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
1051 {
1052         GList *list;
1053         Folder *folder;
1054         struct FuncToAllFoldersData function_data;
1055
1056         function_data.function = function;
1057         function_data.data = data;
1058
1059         for (list = folder_list; list != NULL; list = list->next) {
1060                 folder = FOLDER(list->data);
1061                 if (folder->node)
1062                         g_node_traverse(folder->node, G_PRE_ORDER,
1063                                         G_TRAVERSE_ALL, -1,
1064                                         folder_func_to_all_folders_func,
1065                                         &function_data);
1066         }
1067 }
1068
1069 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
1070 {
1071         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
1072
1073         count->new_msgs += item->new_msgs;
1074         count->unread_msgs += item->unread_msgs;
1075         count->unreadmarked_msgs += item->unreadmarked_msgs;
1076         count->marked_msgs += item->marked_msgs;
1077         count->total_msgs += item->total_msgs;
1078         count->replied_msgs += item->replied_msgs;
1079         count->forwarded_msgs += item->forwarded_msgs;
1080         count->locked_msgs += item->locked_msgs;
1081         count->ignored_msgs += item->ignored_msgs;
1082         count->watched_msgs += item->watched_msgs;
1083 }
1084
1085 struct TotalMsgStatus
1086 {
1087         guint new;
1088         guint unread;
1089         guint total;
1090         GString *str;
1091 };
1092
1093 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
1094 {
1095         FolderItem *item;
1096         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
1097         gchar *id;
1098
1099         cm_return_val_if_fail(node->data != NULL, FALSE);
1100
1101         item = FOLDER_ITEM(node->data);
1102
1103         if (!item->path) return FALSE;
1104
1105         status->new += item->new_msgs;
1106         status->unread += item->unread_msgs;
1107         status->total += item->total_msgs;
1108
1109         if (status->str) {
1110                 id = folder_item_get_identifier(item);
1111                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
1112                                   item->new_msgs, item->unread_msgs,
1113                                   item->total_msgs, id);
1114                 g_free(id);
1115         }
1116
1117         return FALSE;
1118  }
1119
1120 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
1121                                        guint *total)
1122 {
1123         GList *list;
1124         Folder *folder;
1125         struct TotalMsgStatus status;
1126
1127         status.new = status.unread = status.total = 0;
1128         status.str = str;
1129
1130         debug_print("Counting total number of messages...\n");
1131
1132         for (list = folder_list; list != NULL; list = list->next) {
1133                 folder = FOLDER(list->data);
1134                 if (folder->node)
1135                         g_node_traverse(folder->node, G_PRE_ORDER,
1136                                         G_TRAVERSE_ALL, -1,
1137                                         folder_get_status_full_all_func,
1138                                         &status);
1139         }
1140
1141         *new = status.new;
1142         *unread = status.unread;
1143         *total = status.total;
1144 }
1145
1146 gchar *folder_get_status(GPtrArray *folders, gboolean full)
1147 {
1148         guint new, unread, total;
1149         GString *str;
1150         gint i;
1151         gchar *ret;
1152
1153         new = unread = total = 0;
1154
1155         str = g_string_new(NULL);
1156
1157         if (folders) {
1158                 for (i = 0; i < folders->len; i++) {
1159                         FolderItem *item;
1160
1161                         item = g_ptr_array_index(folders, i);
1162                         new += item->new_msgs;
1163                         unread += item->unread_msgs;
1164                         total += item->total_msgs;
1165
1166                         if (full) {
1167                                 gchar *id;
1168
1169                                 id = folder_item_get_identifier(item);
1170                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1171                                                   item->new_msgs, item->unread_msgs,
1172                                                   item->total_msgs, id);
1173                                 g_free(id);
1174                         }
1175                 }
1176         } else {
1177                 folder_get_status_full_all(full ? str : NULL,
1178                                            &new, &unread, &total);
1179         }
1180
1181         if (full)
1182                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1183         else
1184                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1185
1186         ret = str->str;
1187         g_string_free(str, FALSE);
1188
1189         return ret;
1190 }
1191
1192 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs,
1193                              guint *unreadmarked_msgs, guint *marked_msgs,
1194                              guint *total_msgs, guint *replied_msgs,
1195                              guint *forwarded_msgs, guint *locked_msgs,
1196                              guint *ignored_msgs, guint *watched_msgs)
1197 {
1198         struct TotalMsgCount count;
1199
1200         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = 0;
1201         count.total_msgs = count.replied_msgs = count.forwarded_msgs = 0;
1202         count.locked_msgs = count.ignored_msgs = count.watched_msgs = 0;
1203         count.marked_msgs = 0;
1204
1205         debug_print("Counting total number of messages...\n");
1206
1207         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1208
1209         *new_msgs = count.new_msgs;
1210         *unread_msgs = count.unread_msgs;
1211         *unreadmarked_msgs = count.unreadmarked_msgs;
1212         *marked_msgs = count.marked_msgs;
1213         *total_msgs = count.total_msgs;
1214         *replied_msgs = count.replied_msgs;
1215         *forwarded_msgs = count.forwarded_msgs;
1216         *locked_msgs = count.locked_msgs;
1217         *ignored_msgs = count.ignored_msgs;
1218         *watched_msgs = count.watched_msgs;
1219 }
1220
1221 Folder *folder_find_from_path(const gchar *path)
1222 {
1223         GList *list;
1224         Folder *folder;
1225
1226         for (list = folder_list; list != NULL; list = list->next) {
1227                 folder = list->data;
1228                 if ((FOLDER_TYPE(folder) == F_MH ||
1229                      FOLDER_TYPE(folder) == F_MBOX) &&
1230                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1231                         return folder;
1232         }
1233
1234         return NULL;
1235 }
1236
1237 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1238 {
1239         GList *list;
1240         Folder *folder;
1241
1242         for (list = folder_list; list != NULL; list = list->next) {
1243                 folder = list->data;
1244                 if (folder->klass == klass &&
1245                     strcmp2(name, folder->name) == 0)
1246                         return folder;
1247         }
1248
1249         return NULL;
1250 }
1251
1252 static gboolean folder_item_find_func(GNode *node, gpointer data)
1253 {
1254         FolderItem *item = node->data;
1255         gpointer *d = data;
1256         const gchar *path = d[0];
1257
1258         if (path_cmp(path, item->path) != 0)
1259                 return FALSE;
1260
1261         d[1] = item;
1262
1263         return TRUE;
1264 }
1265
1266 FolderItem *folder_find_item_from_path(const gchar *path)
1267 {
1268         Folder *folder;
1269         gpointer d[2];
1270         GList *list = folder_get_list();
1271
1272         folder = list ? list->data:NULL;
1273
1274         cm_return_val_if_fail(folder != NULL, NULL);
1275
1276         d[0] = (gpointer)path;
1277         d[1] = NULL;
1278         while (d[1] == NULL && list) {
1279                 folder = FOLDER(list->data);
1280                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1281                         folder_item_find_func, d);
1282                 list = list->next;
1283         }
1284         return d[1];
1285 }
1286
1287 static gboolean folder_item_find_func_real_path(GNode *node, gpointer data)
1288 {
1289         FolderItem *item = node->data;
1290         gpointer *d = data;
1291         const gchar *path = d[0];
1292         gchar *tmp = folder_item_get_path(item);
1293         if (path_cmp(path, tmp) != 0) {
1294                 g_free(tmp);
1295                 return FALSE;
1296         }
1297         g_free(tmp);
1298         d[1] = item;
1299
1300         return TRUE;
1301 }
1302
1303 FolderItem *folder_find_item_from_real_path(const gchar *path)
1304 {
1305         Folder *folder;
1306         gpointer d[2];
1307         GList *list = folder_get_list();
1308
1309         folder = list ? list->data:NULL;
1310
1311         cm_return_val_if_fail(folder != NULL, NULL);
1312
1313         d[0] = (gpointer)path;
1314         d[1] = NULL;
1315         while (d[1] == NULL && list) {
1316                 folder = FOLDER(list->data);
1317                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1318                         folder_item_find_func_real_path, d);
1319                 list = list->next;
1320         }
1321         return d[1];
1322 }
1323
1324 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1325 {
1326         GNode *node;
1327         FolderItem *child;
1328
1329         for (node = item->node->children; node != NULL; node = node->next) {
1330                 child = FOLDER_ITEM(node->data);
1331                 if (strcmp2(child->name, name) == 0) {
1332                         return child;
1333                 }
1334         }
1335
1336         return NULL;
1337 }
1338
1339 FolderClass *folder_get_class_from_string(const gchar *str)
1340 {
1341         GSList *classlist;
1342
1343         classlist = folder_get_class_list();
1344         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1345                 FolderClass *class = (FolderClass *) classlist->data;
1346                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1347                         return class;
1348         }
1349
1350         return NULL;
1351 }
1352
1353 gchar *folder_get_identifier(Folder *folder)
1354 {
1355         gchar *type_str;
1356
1357         cm_return_val_if_fail(folder != NULL, NULL);
1358
1359         type_str = folder->klass->idstr;
1360         return g_strconcat("#", type_str, "/", folder->name, NULL);
1361 }
1362
1363 gchar *folder_item_get_identifier(FolderItem *item)
1364 {
1365         gchar *id = NULL;
1366         gchar *folder_id = NULL;
1367
1368         cm_return_val_if_fail(item != NULL, NULL);
1369
1370         if (item->path == NULL)
1371                 return NULL;
1372
1373         folder_id = folder_get_identifier(item->folder);
1374         id = g_strconcat(folder_id, "/", item->path, NULL);
1375         g_free(folder_id);
1376
1377         return id;
1378 }
1379
1380 Folder *folder_find_from_identifier(const gchar *identifier)
1381 {
1382         gchar *str;
1383         gchar *p;
1384         gchar *name;
1385         FolderClass *class;
1386
1387         cm_return_val_if_fail(identifier != NULL, NULL);
1388
1389         if (*identifier != '#')
1390                 return NULL;
1391
1392         Xstrdup_a(str, identifier, return NULL);
1393
1394         p = strchr(str, '/');
1395         if (!p)
1396                 return NULL;
1397         *p = '\0';
1398         p++;
1399         class = folder_get_class_from_string(&str[1]);
1400         if (class == NULL)
1401                 return NULL;
1402
1403         name = p;
1404         p = strchr(p, '/');
1405         if (p)
1406                 return NULL;
1407
1408         return folder_find_from_name(name, class);
1409 }
1410
1411 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1412 {
1413         Folder *folder;
1414         gpointer d[2];
1415         gchar *str;
1416         gchar *p;
1417         gchar *name;
1418         gchar *path;
1419         FolderClass *class;
1420
1421         cm_return_val_if_fail(identifier != NULL, NULL);
1422
1423         if (*identifier != '#')
1424                 return folder_find_item_from_path(identifier);
1425
1426         Xstrdup_a(str, identifier, return NULL);
1427
1428         p = strchr(str, '/');
1429         if (!p)
1430                 return folder_find_item_from_path(identifier);
1431         *p = '\0';
1432         p++;
1433         class = folder_get_class_from_string(&str[1]);
1434         if (class == NULL)
1435                 return folder_find_item_from_path(identifier);
1436
1437         name = p;
1438         p = strchr(p, '/');
1439         if (!p)
1440                 return folder_find_item_from_path(identifier);
1441         *p = '\0';
1442         p++;
1443
1444         folder = folder_find_from_name(name, class);
1445         if (!folder)
1446                 return folder_find_item_from_path(identifier);
1447
1448         path = p;
1449
1450         d[0] = (gpointer)path;
1451         d[1] = NULL;
1452         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1453                         folder_item_find_func, d);
1454         return d[1];
1455 }
1456
1457 /** Returns the FolderItem from a given identifier
1458  *
1459  * The FolderItem is created if it doesn't already exist.
1460  * If creation failed, the function returns NULL.
1461  *
1462  * Identifiers are of the form #type/Mailbox/FolderA/FolderB/FolderC
1463  */
1464 FolderItem *folder_get_item_from_identifier(const gchar *identifier)
1465 {
1466         FolderItem *item, *last_parent;
1467         Folder *folder;
1468         gchar *p1, *p2, *str;
1469         size_t len;
1470         FolderClass *class;
1471         gboolean created_something = FALSE;
1472
1473         item = folder_find_item_from_identifier(identifier);
1474         if(item)
1475                 return item;
1476
1477         /* trivial sanity check: need at least # and two slashes */
1478         len = strlen(identifier);
1479         if(len < 3)
1480                 return NULL;
1481
1482         /* make sure identifier ends with a slash */
1483         if(identifier[len-1] == G_DIR_SEPARATOR) {
1484                 Xstrdup_a(str, identifier, return NULL);
1485         }
1486         else {
1487                 Xstrndup_a(str, identifier, len+1, return NULL);
1488                 str[len] = G_DIR_SEPARATOR;
1489         }
1490
1491         /* find folder class */
1492         p1 = strchr(str, G_DIR_SEPARATOR);
1493         if(!p1)
1494                 return NULL;
1495         *p1 = '\0';
1496         class = folder_get_class_from_string(&str[1]);
1497         if(!class)
1498                 return NULL;
1499         *p1 = G_DIR_SEPARATOR;
1500         ++p1;
1501
1502         /* find folder from class and name */
1503         p2 = strchr(p1, G_DIR_SEPARATOR);
1504         if(!p2)
1505                 return NULL;
1506         *p2 = '\0';
1507         folder = folder_find_from_name(p1, class);
1508         if(!folder)
1509                 return NULL;
1510         *p2 = G_DIR_SEPARATOR;
1511         ++p2;
1512         p1 = p2;
1513
1514         /* Now, move forward and make sure all sections in the path exist */
1515         last_parent = folder->node->data;
1516         while((p1 = strchr(p1, G_DIR_SEPARATOR)) != NULL) {
1517                 *p1 = '\0';
1518                 item = folder_find_item_from_identifier(str);
1519                 if(!item) {
1520                         item = folder_create_folder(last_parent, p2);
1521                         if(!item)
1522                                 return NULL;
1523                         debug_print("Created folder '%s'\n", str);
1524                         created_something = TRUE;
1525                         if(prefs_common.inherit_folder_props && (last_parent != item->folder->node->data)) {
1526                                 folder_item_prefs_copy_prefs(last_parent, item);
1527                         }
1528                 }
1529                 last_parent = item;
1530                 *p1 = G_DIR_SEPARATOR;
1531                 ++p1;
1532                 p2 = p1;
1533         }
1534
1535         if(created_something)
1536                 folder_write_list();
1537
1538         return item;
1539 }
1540
1541
1542 /**
1543  * Get a displayable name for a FolderItem
1544  *
1545  * \param item FolderItem for that a name should be created
1546  * \return Displayable name for item, returned string has to
1547  *         be freed
1548  */
1549 gchar *folder_item_get_name(FolderItem *item)
1550 {
1551         gchar *name = NULL;
1552
1553         cm_return_val_if_fail(item != NULL, g_strdup(""));
1554
1555         switch (item->stype) {
1556         case F_INBOX:
1557                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1558                                 item->name);
1559                 break;
1560         case F_OUTBOX:
1561                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1562                                 item->name);
1563                 break;
1564         case F_QUEUE:
1565                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1566                                 item->name);
1567                 break;
1568         case F_TRASH:
1569                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1570                                 item->name);
1571                 break;
1572         case F_DRAFT:
1573                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1574                                 item->name);
1575                 break;
1576         default:
1577                 break;
1578         }
1579
1580         if (name == NULL) {
1581                 /*
1582                  * should probably be done by a virtual function,
1583                  * the folder knows the ui string and how to abbrev
1584                 */
1585                 if (folder_item_parent(item) == NULL) {
1586                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1587                 } else {
1588                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1589                             item->path && !strcmp2(item->name, item->path))
1590                                 name = get_abbrev_newsgroup_name
1591                                         (item->path,
1592                                          prefs_common.ng_abbrev_len);
1593                         else
1594                                 name = g_strdup(item->name);
1595                 }
1596         }
1597
1598         if (name == NULL)
1599                 name = g_strdup("");
1600
1601         return name;
1602 }
1603
1604 gboolean folder_have_mailbox (void)
1605 {
1606         GList *cur;
1607         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1608                 Folder *folder = FOLDER(cur->data);
1609                 if (folder->inbox && folder->outbox)
1610                         return TRUE;
1611         }
1612         return FALSE;
1613 }
1614
1615 FolderItem *folder_get_default_inbox(void)
1616 {
1617         GList *flist;
1618
1619         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1620                 Folder * folder = FOLDER(flist->data);
1621
1622                 if (folder == NULL)
1623                         continue;
1624                 if (folder->inbox == NULL)
1625                         continue;
1626                 if (folder->klass->type == F_UNKNOWN)
1627                         continue;
1628
1629                 return folder->inbox;
1630         }
1631
1632         return NULL;
1633 }
1634
1635 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1636 {
1637         GList *flist;
1638
1639         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1640                 Folder * folder = FOLDER(flist->data);
1641
1642                 if (folder == NULL)
1643                         continue;
1644                 if (folder->inbox == NULL)
1645                         continue;
1646                 if (folder->klass->type != type)
1647                         continue;
1648
1649                 return folder->inbox;
1650         }
1651
1652         return NULL;
1653 }
1654
1655 FolderItem *folder_get_default_outbox(void)
1656 {
1657         GList *flist;
1658
1659         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1660                 Folder * folder = FOLDER(flist->data);
1661
1662                 if (folder == NULL)
1663                         continue;
1664                 if (folder->outbox == NULL)
1665                         continue;
1666                 if (folder->klass->type == F_UNKNOWN)
1667                         continue;
1668
1669                 return folder->outbox;
1670         }
1671
1672         return NULL;
1673 }
1674
1675 FolderItem *folder_get_default_outbox_for_class(FolderType type)
1676 {
1677         GList *flist;
1678
1679         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1680                 Folder * folder = FOLDER(flist->data);
1681
1682                 if (folder == NULL)
1683                         continue;
1684                 if (folder->outbox == NULL)
1685                         continue;
1686                 if (folder->klass->type != type)
1687                         continue;
1688
1689                 return folder->outbox;
1690         }
1691
1692         return NULL;
1693 }
1694
1695 FolderItem *folder_get_default_draft(void)
1696 {
1697         GList *flist;
1698
1699         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1700                 Folder * folder = FOLDER(flist->data);
1701
1702                 if (folder == NULL)
1703                         continue;
1704                 if (folder->draft == NULL)
1705                         continue;
1706                 if (folder->klass->type == F_UNKNOWN)
1707                         continue;
1708
1709                 return folder->draft;
1710         }
1711
1712         return NULL;
1713 }
1714
1715 FolderItem *folder_get_default_draft_for_class(FolderType type)
1716 {
1717         GList *flist;
1718
1719         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1720                 Folder * folder = FOLDER(flist->data);
1721
1722                 if (folder == NULL)
1723                         continue;
1724                 if (folder->draft == NULL)
1725                         continue;
1726                 if (folder->klass->type != type)
1727                         continue;
1728
1729                 return folder->draft;
1730         }
1731
1732         return NULL;
1733 }
1734
1735 FolderItem *folder_get_default_queue(void)
1736 {
1737         GList *flist;
1738
1739         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1740                 Folder * folder = FOLDER(flist->data);
1741
1742                 if (folder == NULL)
1743                         continue;
1744                 if (folder->queue == NULL)
1745                         continue;
1746                 if (folder->klass->type == F_UNKNOWN)
1747                         continue;
1748
1749                 return folder->queue;
1750         }
1751
1752         return NULL;
1753 }
1754
1755 FolderItem *folder_get_default_queue_for_class(FolderType type)
1756 {
1757         GList *flist;
1758
1759         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1760                 Folder * folder = FOLDER(flist->data);
1761
1762                 if (folder == NULL)
1763                         continue;
1764                 if (folder->queue == NULL)
1765                         continue;
1766                 if (folder->klass->type != type)
1767                         continue;
1768
1769                 return folder->queue;
1770         }
1771
1772         return NULL;
1773 }
1774
1775 FolderItem *folder_get_default_trash(void)
1776 {
1777         GList *flist;
1778
1779         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1780                 Folder * folder = FOLDER(flist->data);
1781
1782                 if (folder == NULL)
1783                         continue;
1784                 if (folder->trash == NULL)
1785                         continue;
1786                 if (folder->klass->type == F_UNKNOWN)
1787                         continue;
1788
1789                 return folder->trash;
1790         }
1791
1792         return NULL;
1793 }
1794
1795 FolderItem *folder_get_default_trash_for_class(FolderType type)
1796 {
1797         GList *flist;
1798
1799         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1800                 Folder * folder = FOLDER(flist->data);
1801
1802                 if (folder == NULL)
1803                         continue;
1804                 if (folder->trash == NULL)
1805                         continue;
1806                 if (folder->klass->type != type)
1807                         continue;
1808
1809                 return folder->trash;
1810         }
1811
1812         return NULL;
1813 }
1814
1815 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1816 {                                                               \
1817         if (!folder->member) {                                  \
1818                 item = folder_item_new(folder, dir, dir);       \
1819                 item->stype = type;                             \
1820                 folder_item_append(rootitem, item);             \
1821                 folder->member = item;                          \
1822         }                                                       \
1823 }
1824
1825 void folder_set_missing_folders(void)
1826 {
1827         Folder *folder;
1828         FolderItem *rootitem;
1829         FolderItem *item;
1830         GList *list;
1831
1832         for (list = folder_list; list != NULL; list = list->next) {
1833                 folder = list->data;
1834                 if (FOLDER_TYPE(folder) != F_MH) continue;
1835                 rootitem = FOLDER_ITEM(folder->node->data);
1836                 cm_return_if_fail(rootitem != NULL);
1837
1838                 if (folder->inbox && folder->outbox && folder->draft &&
1839                     folder->queue && folder->trash)
1840                         continue;
1841
1842                 if (folder->klass->create_tree(folder) < 0) {
1843                         g_warning("%s: can't create the folder tree.\n",
1844                                   LOCAL_FOLDER(folder)->rootpath);
1845                         continue;
1846                 }
1847
1848                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1849                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1850                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1851                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1852                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1853         }
1854 }
1855
1856 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1857 {
1858         FolderItem *item = node->data;
1859         PrefsAccount *account = data;
1860
1861         if (item->account == account)
1862                 item->account = NULL;
1863
1864         return FALSE;
1865 }
1866
1867 void folder_unref_account_all(PrefsAccount *account)
1868 {
1869         Folder *folder;
1870         GList *list;
1871
1872         if (!account) return;
1873
1874         for (list = folder_list; list != NULL; list = list->next) {
1875                 folder = list->data;
1876                 if (folder->account == account)
1877                         folder->account = NULL;
1878                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1879                                 folder_unref_account_func, account);
1880         }
1881 }
1882
1883 #undef CREATE_FOLDER_IF_NOT_EXIST
1884
1885 gchar *folder_item_get_path(FolderItem *item)
1886 {
1887         Folder *folder;
1888
1889         cm_return_val_if_fail(item != NULL, NULL);
1890         folder = item->folder;
1891         cm_return_val_if_fail(folder != NULL, NULL);
1892
1893         return folder->klass->item_get_path(folder, item);
1894 }
1895
1896 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1897 {
1898         MsgInfo *msginfo_a = (MsgInfo *) a;
1899         MsgInfo *msginfo_b = (MsgInfo *) b;
1900
1901         return (msginfo_a->msgnum - msginfo_b->msgnum);
1902 }
1903
1904 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1905 {
1906         guint gint_a = GPOINTER_TO_INT(a);
1907         guint gint_b = GPOINTER_TO_INT(b);
1908
1909         return (gint_a - gint_b);
1910 }
1911
1912 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1913 {
1914         GHashTable *relation;
1915         gint ret = 0;
1916         GSList *cur;
1917
1918         if(msglist == NULL)
1919                 return 0;
1920         if(item->folder->klass->get_flags == NULL)
1921                 return 0;
1922         if (item->no_select)
1923                 return 0;
1924
1925         relation = g_hash_table_new(g_direct_hash, g_direct_equal);
1926         if ((ret = item->folder->klass->get_flags(
1927             item->folder, item, msglist, relation)) == 0) {
1928                 gpointer data, old_key;
1929                 MsgInfo *msginfo;
1930                 MsgPermFlags permflags = 0;
1931
1932                 folder_item_update_freeze();
1933                 folder_item_set_batch(item, TRUE);
1934                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1935                         msginfo = (MsgInfo *) cur->data;
1936
1937                         if (g_hash_table_lookup_extended(relation, msginfo, &old_key, &data)) {
1938                                 permflags = GPOINTER_TO_INT(data);
1939
1940                                 if (msginfo->flags.perm_flags != permflags) {
1941                                         procmsg_msginfo_change_flags(msginfo,
1942                                                 permflags & ~msginfo->flags.perm_flags, 0,
1943                                                 ~permflags & msginfo->flags.perm_flags, 0);
1944                                 }
1945                         }
1946                 }
1947                 folder_item_set_batch(item, FALSE);
1948                 folder_item_update_thaw();
1949         }
1950         g_hash_table_destroy(relation);
1951
1952         return ret;
1953 }
1954
1955 static gint folder_item_syncronize_flags(FolderItem *item)
1956 {
1957         MsgInfoList *msglist = NULL;
1958         GSList *cur;
1959         gint ret = 0;
1960
1961         cm_return_val_if_fail(item != NULL, -1);
1962         cm_return_val_if_fail(item->folder != NULL, -1);
1963         cm_return_val_if_fail(item->folder->klass != NULL, -1);
1964         if (item->no_select)
1965                 return -1;
1966
1967         item->scanning = ITEM_SCANNING_WITH_FLAGS;
1968
1969         if (item->cache == NULL)
1970                 folder_item_read_cache(item);
1971
1972         msglist = msgcache_get_msg_list(item->cache);
1973
1974         ret = syncronize_flags(item, msglist);
1975
1976         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
1977                 procmsg_msginfo_free((MsgInfo *) cur->data);
1978
1979         g_slist_free(msglist);
1980
1981         item->scanning = ITEM_NOT_SCANNING;
1982
1983         return ret;
1984 }
1985
1986 static void folder_item_process_open (FolderItem *item,
1987                                  void (*before_proc_func)(gpointer data),
1988                                  void (*after_proc_func)(gpointer data),
1989                                  gpointer data)
1990 {
1991         gchar *buf;
1992         if (item == NULL)
1993                 return;
1994         if((item->folder->klass->scan_required != NULL) &&
1995            (item->folder->klass->scan_required(item->folder, item))) {
1996                 folder_item_scan_full(item, TRUE);
1997         } else {
1998                 folder_item_syncronize_flags(item);
1999         }
2000
2001         /* Processing */
2002         if (item->prefs->enable_processing_when_opening) {
2003                 buf = g_strdup_printf(_("Processing (%s)...\n"),
2004                               item->path ? item->path : item->name);
2005                 g_free(buf);
2006
2007                 if (before_proc_func)
2008                         before_proc_func(data);
2009
2010                 folder_item_apply_processing(item);
2011
2012                 if (after_proc_func)
2013                         after_proc_func(data);
2014         }
2015         item->processing_pending = FALSE;
2016         return;
2017 }
2018
2019 gint folder_item_open(FolderItem *item)
2020 {
2021         START_TIMING("");
2022         if (item->no_select)
2023                 return -1;
2024
2025         if (item->scanning != ITEM_NOT_SCANNING) {
2026                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
2027                 return -2;
2028         }
2029
2030         item->processing_pending = TRUE;
2031         folder_item_process_open (item, NULL, NULL, NULL);
2032
2033         item->opened = TRUE;
2034         END_TIMING();
2035         return 0;
2036 }
2037
2038 gint folder_item_close(FolderItem *item)
2039 {
2040         GSList *mlist, *cur;
2041         Folder *folder;
2042
2043         cm_return_val_if_fail(item != NULL, -1);
2044
2045         if (item->no_select)
2046                 return -1;
2047
2048         if (item->new_msgs) {
2049                 folder_item_update_freeze();
2050                 mlist = folder_item_get_msg_list(item);
2051                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
2052                         MsgInfo * msginfo;
2053
2054                         msginfo = (MsgInfo *) cur->data;
2055                         if (MSG_IS_NEW(msginfo->flags))
2056                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
2057                         procmsg_msginfo_free(msginfo);
2058                 }
2059                 g_slist_free(mlist);
2060                 folder_item_update_thaw();
2061         }
2062
2063         folder_item_write_cache(item);
2064
2065         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
2066
2067         item->opened = FALSE;
2068         folder = item->folder;
2069
2070         if (folder->klass->close == NULL)
2071                 return 0;
2072
2073         return folder->klass->close(folder, item);
2074 }
2075
2076 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
2077 {
2078         MsgInfoList *msglist = NULL;
2079         Folder *folder = item->folder;
2080         if (item->no_select)
2081                 return NULL;
2082
2083         if (folder->klass->get_msginfos != NULL)
2084                 msglist = folder->klass->get_msginfos(folder, item, numlist);
2085         else {
2086                 MsgNumberList *elem;
2087
2088                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
2089                         MsgInfo *msginfo;
2090                         guint num;
2091
2092                         num = GPOINTER_TO_INT(elem->data);
2093                         msginfo = folder->klass->get_msginfo(folder, item, num);
2094                         if (msginfo != NULL)
2095                                 msglist = g_slist_prepend(msglist, msginfo);
2096                 }
2097         }
2098
2099         return msglist;
2100 }
2101
2102 static MsgInfo *get_msginfo(FolderItem *item, guint num)
2103 {
2104         MsgNumberList numlist;
2105         MsgInfoList *msglist;
2106         MsgInfo *msginfo = NULL;
2107
2108         numlist.data = GINT_TO_POINTER(num);
2109         numlist.next = NULL;
2110         msglist = get_msginfos(item, &numlist);
2111         if (msglist != NULL)
2112                 msginfo = procmsg_msginfo_new_ref(msglist->data);
2113         procmsg_msg_list_free(msglist);
2114
2115         return msginfo;
2116 }
2117
2118 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
2119 {
2120         Folder *folder;
2121         GSList *folder_list = NULL, *cache_list = NULL;
2122         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
2123         GSList *exists_list = NULL, *elem;
2124         GSList *newmsg_list = NULL;
2125         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
2126         guint markedcnt = 0, unreadmarkedcnt = 0;
2127         guint repliedcnt = 0, forwardedcnt = 0;
2128         guint lockedcnt = 0, ignoredcnt = 0, watchedcnt = 0;
2129
2130         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
2131         gboolean update_flags = 0, old_uids_valid = FALSE;
2132         GHashTable *subject_table = NULL;
2133
2134         cm_return_val_if_fail(item != NULL, -1);
2135         if (item->path == NULL) return -1;
2136
2137         folder = item->folder;
2138
2139         cm_return_val_if_fail(folder != NULL, -1);
2140         cm_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
2141
2142         item->scanning = ITEM_SCANNING_WITH_FLAGS;
2143
2144         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
2145
2146         /* Get list of messages for folder and cache */
2147         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
2148                 debug_print("Error fetching list of message numbers\n");
2149                 item->scanning = ITEM_NOT_SCANNING;
2150                 return(-1);
2151         }
2152
2153         if(prefs_common.thread_by_subject) {
2154                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
2155         }
2156
2157         if (old_uids_valid) {
2158                 if (!item->cache)
2159                         folder_item_read_cache(item);
2160                 cache_list = msgcache_get_msg_list(item->cache);
2161         } else {
2162                 if (item->cache)
2163                         msgcache_destroy(item->cache);
2164                 item->cache = msgcache_new();
2165                 item->cache_dirty = TRUE;
2166                 item->mark_dirty = TRUE;
2167                 item->tags_dirty = TRUE;
2168                 cache_list = NULL;
2169         }
2170
2171         /* Sort both lists */
2172         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
2173         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
2174
2175         cache_list_cur = cache_list;
2176         folder_list_cur = folder_list;
2177
2178         if (cache_list_cur != NULL) {
2179                 GSList *cache_list_last;
2180
2181                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2182                 cache_list_last = g_slist_last(cache_list);
2183                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
2184         } else {
2185                 cache_cur_num = G_MAXINT;
2186                 cache_max_num = 0;
2187         }
2188
2189         if (folder_list_cur != NULL) {
2190                 GSList *folder_list_last;
2191
2192                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2193                 folder_list_last = g_slist_last(folder_list);
2194                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
2195         } else {
2196                 folder_cur_num = G_MAXINT;
2197                 folder_max_num = 0;
2198         }
2199
2200         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
2201                 /*
2202                  *  Message only exists in the folder
2203                  *  Remember message for fetching
2204                  */
2205                 if (folder_cur_num < cache_cur_num) {
2206                         gboolean add = FALSE;
2207
2208                         switch(FOLDER_TYPE(folder)) {
2209                                 case F_NEWS:
2210                                         if (folder_cur_num < cache_max_num)
2211                                                 break;
2212
2213                                         if (folder->account->max_articles == 0) {
2214                                                 add = TRUE;
2215                                         }
2216
2217                                         if (folder_max_num <= folder->account->max_articles) {
2218                                                 add = TRUE;
2219                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
2220                                                 add = TRUE;
2221                                         }
2222                                         break;
2223                                 default:
2224                                         add = TRUE;
2225                                         break;
2226                         }
2227
2228                         if (add) {
2229                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
2230                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
2231                         }
2232
2233                         /* Move to next folder number */
2234                         if (folder_list_cur)
2235                                 folder_list_cur = folder_list_cur->next;
2236
2237                         if (folder_list_cur != NULL)
2238                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2239                         else
2240                                 folder_cur_num = G_MAXINT;
2241
2242                         continue;
2243                 }
2244
2245                 /*
2246                  *  Message only exists in the cache
2247                  *  Remove the message from the cache
2248                  */
2249                 if (cache_cur_num < folder_cur_num) {
2250                         msgcache_remove_msg(item->cache, cache_cur_num);
2251                         debug_print("Removed message %d from cache.\n", cache_cur_num);
2252
2253                         /* Move to next cache number */
2254                         if (cache_list_cur)
2255                                 cache_list_cur = cache_list_cur->next;
2256
2257                         if (cache_list_cur != NULL)
2258                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2259                         else
2260                                 cache_cur_num = G_MAXINT;
2261
2262                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2263
2264                         continue;
2265                 }
2266
2267                 /*
2268                  *  Message number exists in folder and cache!
2269                  *  Check if the message has been modified
2270                  */
2271                 if (cache_cur_num == folder_cur_num) {
2272                         MsgInfo *msginfo;
2273
2274                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
2275                         if (msginfo && folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
2276                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2277                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
2278                                 procmsg_msginfo_free(msginfo);
2279
2280                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
2281                         } else if (msginfo) {
2282                                 exists_list = g_slist_prepend(exists_list, msginfo);
2283
2284                                 if(prefs_common.thread_by_subject &&
2285                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2286                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2287                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2288                                 }
2289                         }
2290
2291                         /* Move to next folder and cache number */
2292                         if (cache_list_cur)
2293                                 cache_list_cur = cache_list_cur->next;
2294
2295                         if (folder_list_cur)
2296                                 folder_list_cur = folder_list_cur->next;
2297
2298                         if (cache_list_cur != NULL)
2299                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2300                         else
2301                                 cache_cur_num = G_MAXINT;
2302
2303                         if (folder_list_cur != NULL)
2304                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2305                         else
2306                                 folder_cur_num = G_MAXINT;
2307
2308                         continue;
2309                 }
2310         }
2311
2312         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
2313                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
2314
2315         g_slist_free(cache_list);
2316         g_slist_free(folder_list);
2317
2318         if (new_list != NULL) {
2319                 GSList *tmp_list = NULL;
2320                 newmsg_list = get_msginfos(item, new_list);
2321                 g_slist_free(new_list);
2322                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2323                 syncronize_flags(item, tmp_list);
2324                 g_slist_free(tmp_list);
2325         } else {
2326                 syncronize_flags(item, exists_list);
2327         }
2328
2329         folder_item_update_freeze();
2330
2331         item->scanning = ITEM_SCANNING;
2332
2333         if (newmsg_list != NULL) {
2334                 GSList *elem, *to_filter = NULL;
2335                 gboolean do_filter = (filtering == TRUE) &&
2336                                         (item->stype == F_INBOX) &&
2337                                         (item->folder->account != NULL) &&
2338                                         (item->folder->account->filter_on_recv);
2339
2340                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2341                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2342
2343                         msgcache_add_msg(item->cache, msginfo);
2344                         if (!do_filter) {
2345                                 exists_list = g_slist_prepend(exists_list, msginfo);
2346
2347                                 if(prefs_common.thread_by_subject &&
2348                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2349                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2350                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2351                                 }
2352                         }
2353                 }
2354
2355                 if (do_filter) {
2356                         GSList *unfiltered;
2357
2358                         folder_item_set_batch(item, TRUE);
2359                         procmsg_msglist_filter(newmsg_list, item->folder->account,
2360                                         &to_filter, &unfiltered,
2361                                         TRUE);
2362                         folder_item_set_batch(item, FALSE);
2363
2364                         filtering_move_and_copy_msgs(newmsg_list);
2365                         if (to_filter != NULL) {
2366                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2367                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2368                                         procmsg_msginfo_free(msginfo);
2369                                 }
2370                                 g_slist_free(to_filter);
2371                         }
2372                         if (unfiltered != NULL) {
2373                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2374                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2375                                         exists_list = g_slist_prepend(exists_list, msginfo);
2376
2377                                         if(prefs_common.thread_by_subject &&
2378                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2379                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2380                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2381                                         }
2382                                 }
2383                                 g_slist_free(unfiltered);
2384                         }
2385                         if (prefs_common.real_time_sync)
2386                                 folder_item_synchronise(item);
2387                 } else {
2388                         if (prefs_common.real_time_sync)
2389                                 folder_item_synchronise(item);
2390                 }
2391
2392                 g_slist_free(newmsg_list);
2393
2394                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2395         }
2396
2397         folder_item_set_batch(item, TRUE);
2398         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2399                 MsgInfo *msginfo, *parent_msginfo;
2400
2401                 msginfo = elem->data;
2402                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2403                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2404                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2405                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2406                 }
2407                 if (!MSG_IS_WATCH_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_WATCH_THREAD)) {
2408                         procmsg_msginfo_set_flags(msginfo, MSG_WATCH_THREAD, 0);
2409                 }
2410                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2411                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2412                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2413                 {
2414                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2415                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2416                                                 MSG_NEW | MSG_UNREAD, 0);
2417                         }
2418                 }
2419                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2420                      folder_has_parent_of_type(item, F_QUEUE)  ||
2421                      folder_has_parent_of_type(item, F_TRASH)) &&
2422                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2423                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2424                 if (MSG_IS_NEW(msginfo->flags))
2425                         newcnt++;
2426                 if (MSG_IS_UNREAD(msginfo->flags))
2427                         unreadcnt++;
2428                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2429                         unreadmarkedcnt++;
2430                 if (MSG_IS_MARKED(msginfo->flags))
2431                         markedcnt++;
2432                 if (MSG_IS_REPLIED(msginfo->flags))
2433                         repliedcnt++;
2434                 if (MSG_IS_FORWARDED(msginfo->flags))
2435                         forwardedcnt++;
2436                 if (MSG_IS_LOCKED(msginfo->flags))
2437                         lockedcnt++;
2438                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2439                         ignoredcnt++;
2440                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2441                         watchedcnt++;
2442
2443                 totalcnt++;
2444
2445                 procmsg_msginfo_free(msginfo);
2446         }
2447         folder_item_set_batch(item, FALSE);
2448         g_slist_free(exists_list);
2449
2450         if(prefs_common.thread_by_subject) {
2451                 g_hash_table_destroy(subject_table);
2452         }
2453
2454         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2455         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2456         ||  item->unreadmarked_msgs != unreadmarkedcnt
2457         ||  item->replied_msgs != repliedcnt || item->forwarded_msgs != forwardedcnt
2458         ||  item->locked_msgs != lockedcnt || item->ignored_msgs != ignoredcnt
2459         ||  item->watched_msgs != watchedcnt) {
2460                 update_flags |= F_ITEM_UPDATE_CONTENT;
2461         }
2462
2463         item->new_msgs = newcnt;
2464         item->unread_msgs = unreadcnt;
2465         item->total_msgs = totalcnt;
2466         item->unreadmarked_msgs = unreadmarkedcnt;
2467         item->marked_msgs = markedcnt;
2468         item->replied_msgs = repliedcnt;
2469         item->forwarded_msgs = forwardedcnt;
2470         item->locked_msgs = lockedcnt;
2471         item->ignored_msgs = ignoredcnt;
2472         item->watched_msgs = watchedcnt;
2473
2474         update_flags |= F_ITEM_UPDATE_MSGCNT;
2475
2476         folder_item_update(item, update_flags);
2477         folder_item_update_thaw();
2478
2479         item->scanning = ITEM_NOT_SCANNING;
2480
2481         return 0;
2482 }
2483
2484 gint folder_item_scan(FolderItem *item)
2485 {
2486         return folder_item_scan_full(item, TRUE);
2487 }
2488
2489 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2490 {
2491         gint *memusage = (gint *)data;
2492
2493         if (item->cache == NULL)
2494                 return;
2495
2496         *memusage += msgcache_get_memory_usage(item->cache);
2497 }
2498
2499 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2500 {
2501         FolderItem *fa = (FolderItem *)a;
2502         FolderItem *fb = (FolderItem *)b;
2503
2504         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2505 }
2506
2507 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2508 {
2509         GSList **folder_item_list = (GSList **)data;
2510         gint difftime, expiretime;
2511
2512         if (item->cache == NULL)
2513                 return;
2514
2515         if (item->opened > 0)
2516                 return;
2517
2518         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2519         expiretime = prefs_common.cache_min_keep_time * 60;
2520         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2521
2522         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2523                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2524         }
2525 }
2526
2527 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2528 {
2529         cm_return_val_if_fail(item != NULL, TRUE);
2530
2531         if (item->cache == NULL)
2532                 return TRUE;
2533
2534         if (item->opened > 0 && !force)
2535                 return FALSE;
2536
2537         folder_item_write_cache(item);
2538         msgcache_destroy(item->cache);
2539         item->cache = NULL;
2540         return TRUE;
2541 }
2542
2543 void folder_clean_cache_memory_force(void)
2544 {
2545         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2546         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2547
2548         prefs_common.cache_max_mem_usage = 0;
2549         prefs_common.cache_min_keep_time = 0;
2550
2551         folder_clean_cache_memory(NULL);
2552
2553         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2554         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2555 }
2556
2557 void folder_clean_cache_memory(FolderItem *protected_item)
2558 {
2559         gint memusage = 0;
2560
2561         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2562         debug_print("Total cache memory usage: %d\n", memusage);
2563
2564         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2565                 GSList *folder_item_list = NULL, *listitem;
2566
2567                 debug_print("Trying to free cache memory\n");
2568
2569                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2570                 listitem = folder_item_list;
2571                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2572                         FolderItem *item = (FolderItem *)(listitem->data);
2573                         gint cache_size = 0;
2574                         if (item == protected_item) {
2575                                 listitem = listitem->next;
2576                                 continue;
2577                         }
2578                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2579                         cache_size = msgcache_get_memory_usage(item->cache);
2580                         if (folder_item_free_cache(item, FALSE))
2581                                 memusage -= cache_size;
2582
2583                         listitem = listitem->next;
2584                 }
2585                 g_slist_free(folder_item_list);
2586         }
2587 }
2588
2589 static void folder_item_remove_cached_msg(FolderItem *item, MsgInfo *msginfo)
2590 {
2591         Folder *folder = item->folder;
2592
2593         cm_return_if_fail(folder != NULL);
2594
2595         if (folder->klass->remove_cached_msg == NULL)
2596                 return;
2597
2598         folder->klass->remove_cached_msg(folder, item, msginfo);
2599 }
2600
2601 static void folder_item_clean_local_files(FolderItem *item, gint days)
2602 {
2603         cm_return_if_fail(item != NULL);
2604         cm_return_if_fail(item->folder != NULL);
2605
2606         if (FOLDER_TYPE(item->folder) == F_IMAP ||
2607             FOLDER_TYPE(item->folder) == F_NEWS) {
2608                 GSList *msglist = folder_item_get_msg_list(item);
2609                 GSList *cur;
2610                 time_t t = time(NULL);
2611                 for (cur = msglist; cur; cur = cur->next) {
2612                         MsgInfo *msginfo = (MsgInfo *)cur->data;
2613                         gint age = (t - msginfo->date_t) / (60*60*24);
2614                         if (age > days)
2615                                 folder_item_remove_cached_msg(item, msginfo);
2616                 }
2617                 procmsg_msg_list_free(msglist);
2618         }
2619 }
2620
2621 static void folder_item_read_cache(FolderItem *item)
2622 {
2623         gchar *cache_file, *mark_file, *tags_file;
2624         START_TIMING("");
2625         cm_return_if_fail(item != NULL);
2626
2627         if (item->path != NULL) {
2628                 cache_file = folder_item_get_cache_file(item);
2629                 mark_file = folder_item_get_mark_file(item);
2630                 tags_file = folder_item_get_tags_file(item);
2631                 item->cache = msgcache_read_cache(item, cache_file);
2632                 item->cache_dirty = FALSE;
2633                 item->mark_dirty = FALSE;
2634                 item->tags_dirty = FALSE;
2635                 if (!item->cache) {
2636                         MsgInfoList *list, *cur;
2637                         guint newcnt = 0, unreadcnt = 0;
2638                         guint markedcnt = 0, unreadmarkedcnt = 0;
2639                         guint repliedcnt = 0, forwardedcnt = 0;
2640                         guint lockedcnt = 0, ignoredcnt = 0;
2641                         guint watchedcnt = 0;
2642                         MsgInfo *msginfo;
2643
2644                         item->cache = msgcache_new();
2645                         item->cache_dirty = TRUE;
2646                         item->mark_dirty = TRUE;
2647                         item->tags_dirty = TRUE;
2648                         folder_item_scan_full(item, TRUE);
2649
2650                         msgcache_read_mark(item->cache, mark_file);
2651
2652                         list = msgcache_get_msg_list(item->cache);
2653                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2654                                 msginfo = cur->data;
2655
2656                                 if (MSG_IS_NEW(msginfo->flags))
2657                                         newcnt++;
2658                                 if (MSG_IS_UNREAD(msginfo->flags))
2659                                         unreadcnt++;
2660                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2661                                         unreadmarkedcnt++;
2662                                 if (MSG_IS_MARKED(msginfo->flags))
2663                                         markedcnt++;
2664                                 if (MSG_IS_REPLIED(msginfo->flags))
2665                                         repliedcnt++;
2666                                 if (MSG_IS_FORWARDED(msginfo->flags))
2667                                         forwardedcnt++;
2668                                 if (MSG_IS_LOCKED(msginfo->flags))
2669                                         lockedcnt++;
2670                                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2671                                         ignoredcnt++;
2672                                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2673                                         watchedcnt++;
2674                                 procmsg_msginfo_unset_flags(msginfo, MSG_FULLY_CACHED, 0);
2675                         }
2676                         item->new_msgs = newcnt;
2677                         item->unread_msgs = unreadcnt;
2678                         item->unreadmarked_msgs = unreadmarkedcnt;
2679                         item->marked_msgs = markedcnt;
2680                         item->replied_msgs = repliedcnt;
2681                         item->forwarded_msgs = forwardedcnt;
2682                         item->locked_msgs = lockedcnt;
2683                         item->ignored_msgs = ignoredcnt;
2684                         item->watched_msgs = watchedcnt;
2685                         procmsg_msg_list_free(list);
2686                 } else
2687                         msgcache_read_mark(item->cache, mark_file);
2688
2689                 msgcache_read_tags(item->cache, tags_file);
2690
2691                 g_free(cache_file);
2692                 g_free(mark_file);
2693                 g_free(tags_file);
2694         } else {
2695                 item->cache = msgcache_new();
2696                 item->cache_dirty = TRUE;
2697                 item->mark_dirty = TRUE;
2698                 item->tags_dirty = TRUE;
2699         }
2700
2701         END_TIMING();
2702         folder_clean_cache_memory(item);
2703 }
2704
2705 void folder_item_write_cache(FolderItem *item)
2706 {
2707         gchar *cache_file = NULL, *mark_file = NULL, *tags_file = NULL;
2708         FolderItemPrefs *prefs;
2709         gint filemode = 0;
2710         gchar *id;
2711         time_t last_mtime = (time_t)0;
2712         gboolean need_scan = FALSE;
2713
2714         if (!item || !item->path || !item->cache)
2715                 return;
2716
2717         last_mtime = item->mtime;
2718         if (item->folder->klass->set_mtime) {
2719                 if (item->folder->klass->scan_required)
2720                         need_scan = item->folder->klass->scan_required(item->folder, item);
2721                 else
2722                         need_scan = TRUE;
2723         }
2724
2725         id = folder_item_get_identifier(item);
2726         debug_print("Save cache for folder %s\n", id);
2727         g_free(id);
2728
2729         if (item->cache_dirty)
2730                 cache_file = folder_item_get_cache_file(item);
2731         if (item->cache_dirty || item->mark_dirty)
2732                 mark_file = folder_item_get_mark_file(item);
2733         if (item->cache_dirty || item->tags_dirty)
2734                 tags_file = folder_item_get_tags_file(item);
2735         if (msgcache_write(cache_file, mark_file, tags_file, item->cache) < 0) {
2736                 prefs = item->prefs;
2737                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2738                         /* for cache file */
2739                         filemode = prefs->folder_chmod;
2740                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2741                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2742                         chmod(cache_file, filemode);
2743                 }
2744         } else {
2745                 item->cache_dirty = FALSE;
2746                 item->mark_dirty = FALSE;
2747                 item->tags_dirty = FALSE;
2748         }
2749
2750         if (!need_scan && item->folder->klass->set_mtime) {
2751                 if (item->mtime == last_mtime) {
2752                         item->folder->klass->set_mtime(item->folder, item);
2753                 }
2754         }
2755
2756         g_free(cache_file);
2757         g_free(mark_file);
2758         g_free(tags_file);
2759 }
2760
2761 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2762 {
2763         MsgInfo *msginfo = NULL;
2764
2765         cm_return_val_if_fail(item != NULL, NULL);
2766         if (item->no_select)
2767                 return NULL;
2768         if (!item->cache)
2769                 folder_item_read_cache(item);
2770
2771         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2772                 return msginfo;
2773
2774         msginfo = get_msginfo(item, num);
2775         if (msginfo != NULL) {
2776                 msgcache_add_msg(item->cache, msginfo);
2777                 return msginfo;
2778         }
2779
2780         return NULL;
2781 }
2782
2783 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2784 {
2785         MsgInfo *msginfo;
2786
2787         cm_return_val_if_fail(item != NULL, NULL);
2788         cm_return_val_if_fail(msgid != NULL, NULL);
2789         if (item->no_select)
2790                 return NULL;
2791
2792         if (!item->cache)
2793                 folder_item_read_cache(item);
2794
2795         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2796                 return msginfo;
2797
2798         return NULL;
2799 }
2800
2801 GSList *folder_item_get_msg_list(FolderItem *item)
2802 {
2803         cm_return_val_if_fail(item != NULL, NULL);
2804         if (item->no_select)
2805                 return NULL;
2806
2807         if (item->cache == 0)
2808                 folder_item_read_cache(item);
2809
2810         cm_return_val_if_fail(item->cache != NULL, NULL);
2811
2812         return msgcache_get_msg_list(item->cache);
2813 }
2814
2815 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2816 {
2817         MsgInfo *msginfo = data;
2818         MimeInfo *mimeinfo = node->data;
2819
2820         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2821          && (!mimeinfo->subtype || (strcmp(mimeinfo->subtype, "pgp-signature") &&
2822              strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2823              strcmp(mimeinfo->subtype, "pkcs7-signature")))) {
2824                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2825         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2826                  mimeinfo->id == NULL &&
2827                  mimeinfo->type != MIMETYPE_TEXT &&
2828                  mimeinfo->type != MIMETYPE_MULTIPART) {
2829                 if (!mimeinfo->subtype
2830                 || (strcmp(mimeinfo->subtype, "pgp-signature") &&
2831                     strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2832                     strcmp(mimeinfo->subtype, "pkcs7-signature")))
2833                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2834         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2835                  mimeinfo->id == NULL &&
2836                 (strcmp(mimeinfo->subtype, "pgp-signature") &&
2837                  strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2838                  strcmp(mimeinfo->subtype, "pkcs7-signature")) &&
2839                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2840                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2841                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2842         }
2843
2844         /* don't descend below top level message for signed and encrypted info */
2845         if (mimeinfo->type == MIMETYPE_MESSAGE)
2846                 return;
2847
2848         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2849                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2850         }
2851
2852         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2853                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2854         } else {
2855                 /* searching inside encrypted parts doesn't really make sense */
2856                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2857         }
2858 }
2859
2860 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2861 {
2862         Folder *folder;
2863         gchar *msgfile;
2864         MsgInfo *msginfo;
2865
2866         cm_return_val_if_fail(item != NULL, NULL);
2867
2868         folder = item->folder;
2869
2870         cm_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2871         if (item->no_select)
2872                 return NULL;
2873
2874         msgfile = folder->klass->fetch_msg(folder, item, num);
2875
2876         if (msgfile != NULL) {
2877                 msginfo = folder_item_get_msginfo(item, num);
2878                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2879                         MimeInfo *mimeinfo;
2880
2881                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2882                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2883                                 mimeinfo = procmime_scan_file(msgfile);
2884                         else
2885                                 mimeinfo = procmime_scan_queue_file(msgfile);
2886                         /* check for attachments */
2887                         if (mimeinfo != NULL) {
2888                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2889                                 procmime_mimeinfo_free_all(mimeinfo);
2890
2891                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2892                         }
2893                 }
2894                 procmsg_msginfo_free(msginfo);
2895         }
2896
2897         return msgfile;
2898 }
2899
2900 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2901                                   gboolean body)
2902 {
2903         Folder *folder;
2904         gchar *msgfile;
2905         MsgInfo *msginfo;
2906
2907         cm_return_val_if_fail(item != NULL, NULL);
2908         if (item->no_select)
2909                 return NULL;
2910
2911         folder = item->folder;
2912
2913         if (folder->klass->fetch_msg_full == NULL)
2914                 return folder_item_fetch_msg(item, num);
2915
2916         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2917                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2918                                                 TRUE, TRUE);
2919         else
2920                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2921                                                 headers, body);
2922
2923         if (msgfile != NULL) {
2924                 msginfo = folder_item_get_msginfo(item, num);
2925                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2926                         MimeInfo *mimeinfo;
2927
2928                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2929                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2930                                 mimeinfo = procmime_scan_file(msgfile);
2931                         else
2932                                 mimeinfo = procmime_scan_queue_file(msgfile);
2933                         /* check for attachments */
2934                         if (mimeinfo != NULL) {
2935                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2936                                 procmime_mimeinfo_free_all(mimeinfo);
2937
2938                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2939                         }
2940                 }
2941                 procmsg_msginfo_free(msginfo);
2942         }
2943
2944         return msgfile;
2945 }
2946
2947
2948 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2949 {
2950         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2951                                        {NULL,           NULL, FALSE}};
2952         FILE *fp;
2953         MsgInfo *msginfo;
2954         gint msgnum = 0;
2955         gchar buf[BUFFSIZE];
2956
2957         if ((fp = g_fopen(file, "rb")) == NULL)
2958                 return 0;
2959
2960         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2961             (folder_has_parent_of_type(dest, F_DRAFT)))
2962                 while (fgets(buf, sizeof(buf), fp) != NULL) {
2963                         /* new way */
2964                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
2965                                 strlen("X-Claws-End-Special-Headers:"))) ||
2966                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
2967                                 strlen("X-Sylpheed-End-Special-Headers:"))))
2968                                 break;
2969                         /* old way */
2970                         if (buf[0] == '\r' || buf[0] == '\n') break;
2971                         /* from other mailers */
2972                         if (!strncmp(buf, "Date: ", 6)
2973                         ||  !strncmp(buf, "To: ", 4)
2974                         ||  !strncmp(buf, "From: ", 6)
2975                         ||  !strncmp(buf, "Subject: ", 9)) {
2976                                 rewind(fp);
2977                                 break;
2978                         }
2979                 }
2980
2981         procheader_get_header_fields(fp, hentry);
2982         debug_print("looking for %s\n", hentry[0].body);
2983         if (hentry[0].body) {
2984                 extract_parenthesis(hentry[0].body, '<', '>');
2985                 remove_space(hentry[0].body);
2986                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2987                         msgnum = msginfo->msgnum;
2988                         procmsg_msginfo_free(msginfo);
2989
2990                         debug_print("found message as uid %d\n", msgnum);
2991                 }
2992         }
2993
2994         g_free(hentry[0].body);
2995         hentry[0].body = NULL;
2996         fclose(fp);
2997
2998         return msgnum;
2999 }
3000
3001 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
3002 {
3003         MsgPermFlags perm_flags = 0;
3004         MsgTmpFlags tmp_flags = 0;
3005
3006         /* create new flags */
3007         if (source != NULL) {
3008                 /* copy original flags */
3009                 perm_flags = source->flags.perm_flags;
3010                 tmp_flags = source->flags.tmp_flags;
3011         } else {
3012                 perm_flags = dest->flags.perm_flags;
3013                 tmp_flags = dest->flags.tmp_flags;
3014         }
3015
3016         /* remove new, unread and deleted in special folders */
3017         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
3018             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
3019             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
3020             folder_has_parent_of_type(dest->folder, F_TRASH))
3021                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
3022
3023         /* set ignore flag of ignored parent exists */
3024         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
3025                 perm_flags |= MSG_IGNORE_THREAD;
3026
3027         /* unset FULLY_CACHED flags */
3028         perm_flags &= ~MSG_FULLY_CACHED;
3029
3030         if (procmsg_msg_has_flagged_parent(dest, MSG_WATCH_THREAD))
3031                 perm_flags |= MSG_WATCH_THREAD;
3032
3033         /* Unset tmp flags that should not be copied */
3034         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
3035
3036         /* unset flags that are set but should not */
3037         /* and set new flags */
3038         procmsg_msginfo_change_flags(dest,
3039                                   ~dest->flags.perm_flags & perm_flags,
3040                                   ~dest->flags.tmp_flags  & tmp_flags,
3041                                    dest->flags.perm_flags & ~perm_flags,
3042                                    dest->flags.tmp_flags  & ~tmp_flags);
3043
3044         if (source && source->tags) {
3045                 g_slist_free(dest->tags);
3046                 dest->tags = g_slist_copy(source->tags);
3047                 folder_item_commit_tags(dest->folder, dest, dest->tags, NULL);
3048         }
3049 }
3050
3051 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
3052 {
3053         /* update folder stats */
3054         if (MSG_IS_NEW(newmsginfo->flags))
3055                 item->new_msgs++;
3056         if (MSG_IS_UNREAD(newmsginfo->flags))
3057                 item->unread_msgs++;
3058         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
3059                 item->unreadmarked_msgs++;
3060         if (MSG_IS_MARKED(newmsginfo->flags))
3061                 item->marked_msgs++;
3062         if (MSG_IS_REPLIED(newmsginfo->flags))
3063                 item->replied_msgs++;
3064         if (MSG_IS_FORWARDED(newmsginfo->flags))
3065                 item->forwarded_msgs++;
3066         if (MSG_IS_LOCKED(newmsginfo->flags))
3067                 item->locked_msgs++;
3068         if (MSG_IS_IGNORE_THREAD(newmsginfo->flags))
3069                 item->ignored_msgs++;
3070         if (MSG_IS_WATCH_THREAD(newmsginfo->flags))
3071                 item->watched_msgs++;
3072         item->total_msgs++;
3073
3074         folder_item_update_freeze();
3075
3076         if (!item->cache)
3077                 folder_item_read_cache(item);
3078
3079         msgcache_add_msg(item->cache, newmsginfo);
3080         copy_msginfo_flags(flagsource, newmsginfo);
3081         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
3082         folder_item_update_thaw();
3083 }
3084
3085 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
3086 {
3087         MsgInfoUpdate msginfo_update;
3088
3089         if (!item->cache)
3090                 folder_item_read_cache(item);
3091
3092         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
3093                 msginfo->folder->new_msgs--;
3094         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
3095                 msginfo->folder->unread_msgs--;
3096         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
3097                 msginfo->folder->unreadmarked_msgs--;
3098         if (MSG_IS_MARKED(msginfo->flags))
3099                 item->marked_msgs--;
3100         if (MSG_IS_REPLIED(msginfo->flags))
3101                 item->replied_msgs--;
3102         if (MSG_IS_FORWARDED(msginfo->flags))
3103                 item->forwarded_msgs--;
3104         if (MSG_IS_LOCKED(msginfo->flags))
3105                 item->locked_msgs--;
3106         if (MSG_IS_IGNORE_THREAD(msginfo->flags))
3107                 item->ignored_msgs--;
3108         if (MSG_IS_WATCH_THREAD(msginfo->flags))
3109                 item->watched_msgs--;
3110
3111         msginfo->folder->total_msgs--;
3112
3113         msginfo_update.msginfo = msginfo;
3114         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
3115         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
3116
3117         msgcache_remove_msg(item->cache, msginfo->msgnum);
3118         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
3119 }
3120
3121 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
3122                          MsgFlags *flags, gboolean remove_source)
3123 {
3124         GSList file_list;
3125         MsgFileInfo fileinfo;
3126
3127         cm_return_val_if_fail(dest != NULL, -1);
3128         cm_return_val_if_fail(file != NULL, -1);
3129
3130         fileinfo.msginfo = NULL;
3131         fileinfo.file = (gchar *)file;
3132         fileinfo.flags = flags;
3133         file_list.data = &fileinfo;
3134         file_list.next = NULL;
3135
3136         return folder_item_add_msgs(dest, &file_list, remove_source);
3137 }
3138
3139 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
3140                           gboolean remove_source)
3141 {
3142         Folder *folder;
3143         gint ret, num, lastnum = -1;
3144         GSList *file_cur;
3145         GHashTable *relation;
3146         MsgFileInfo *fileinfo = NULL;
3147         gboolean folderscan = FALSE;
3148
3149         cm_return_val_if_fail(dest != NULL, -1);
3150         cm_return_val_if_fail(file_list != NULL, -1);
3151         cm_return_val_if_fail(dest->folder != NULL, -1);
3152         if (dest->no_select)
3153                 return -1;
3154
3155         folder = dest->folder;
3156
3157         relation = g_hash_table_new(g_direct_hash, g_direct_equal);
3158
3159         if (folder->klass->add_msgs != NULL) {
3160                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
3161                 if (ret < 0) {
3162                         g_hash_table_destroy(relation);
3163                         return ret;
3164                 }
3165         } else {
3166                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3167                         fileinfo = (MsgFileInfo *) file_cur->data;
3168
3169                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
3170                         if (ret < 0) {
3171                                 g_hash_table_destroy(relation);
3172                                 return ret;
3173                         }
3174                         g_hash_table_insert(relation, fileinfo, GINT_TO_POINTER(ret));
3175                 }
3176         }
3177
3178         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3179                 gpointer data, old_key;
3180
3181                 fileinfo = (MsgFileInfo *) file_cur->data;
3182                 if (g_hash_table_lookup_extended(relation, fileinfo, &old_key, &data))
3183                         num = GPOINTER_TO_INT(data);
3184                 else
3185                         num = -1;
3186
3187                 if (num >= 0) {
3188                         MsgInfo *newmsginfo;
3189
3190                         if (num == 0) {
3191                                 if (!folderscan) {
3192                                         folder_item_scan_full(dest, FALSE);
3193                                         folderscan = TRUE;
3194                                 }
3195                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
3196                                 debug_print("got num %d\n", num);
3197                         }
3198
3199                         if (num > lastnum)
3200                                 lastnum = num;
3201
3202                         if (num >= 0 && remove_source) {
3203                                 if (claws_unlink(fileinfo->file) < 0)
3204                                         FILE_OP_ERROR(fileinfo->file, "unlink");
3205                         }
3206
3207                         if (num == 0)
3208                                 continue;
3209
3210                         if (!folderscan &&
3211                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
3212                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
3213                                 procmsg_msginfo_free(newmsginfo);
3214                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
3215                                 /* TODO: set default flags */
3216                                 procmsg_msginfo_free(newmsginfo);
3217                         }
3218                 }
3219         }
3220
3221         g_hash_table_destroy(relation);
3222
3223         return lastnum;
3224 }
3225
3226 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy)
3227 {
3228         GSList *mlist;
3229         FolderItem *new_item;
3230         FolderItem *next_item;
3231         GNode *srcnode;
3232         gchar *old_id, *new_id;
3233
3234         /* move messages */
3235         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
3236         new_item = folder_create_folder(dest, src->name);
3237         if (new_item == NULL) {
3238                 g_print("Can't create folder\n");
3239                 return NULL;
3240         }
3241
3242         if (new_item->folder == NULL)
3243                 new_item->folder = dest->folder;
3244
3245         /* move messages */
3246         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"),
3247                         src->name, new_item->path);
3248
3249         mlist = folder_item_get_msg_list(src);
3250
3251         if (mlist != NULL) {
3252                 if (copy)
3253                         folder_item_copy_msgs(new_item, mlist);
3254                 else
3255                         folder_item_move_msgs(new_item, mlist);
3256                 procmsg_msg_list_free(mlist);
3257         }
3258
3259         /*copy prefs*/
3260         folder_item_prefs_copy_prefs(src, new_item);
3261
3262         /* copy internal data */
3263         if (src->folder->klass == new_item->folder->klass &&
3264             src->folder->klass->copy_private_data != NULL)
3265                 src->folder->klass->copy_private_data(src->folder,
3266                                         src, new_item);
3267         new_item->collapsed = src->collapsed;
3268         new_item->thread_collapsed = src->thread_collapsed;
3269         new_item->threaded  = src->threaded;
3270         new_item->ret_rcpt  = src->ret_rcpt;
3271         new_item->hide_read_msgs = src->hide_read_msgs;
3272         new_item->hide_del_msgs = src->hide_del_msgs;
3273         new_item->hide_read_threads = src->hide_read_threads;
3274         new_item->sort_key  = src->sort_key;
3275         new_item->sort_type = src->sort_type;
3276
3277         prefs_matcher_write_config();
3278
3279         /* recurse */
3280         srcnode = src->folder->node;
3281         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
3282         srcnode = srcnode->children;
3283         while (srcnode != NULL) {
3284                 if (srcnode && srcnode->data) {
3285                         next_item = (FolderItem*) srcnode->data;
3286                         srcnode = srcnode->next;
3287                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
3288                                 return NULL;
3289                         }
3290                 }
3291         }
3292         old_id = folder_item_get_identifier(src);
3293         new_id = folder_item_get_identifier(new_item);
3294
3295         /* if src supports removing, otherwise only copy folder */
3296         if (src->folder->klass->remove_folder != NULL && !copy)
3297                 src->folder->klass->remove_folder(src->folder, src);
3298         folder_write_list();
3299
3300         if (!copy) {
3301                 debug_print("updating rules : %s => %s\n", old_id, new_id);
3302                 if (old_id != NULL && new_id != NULL) {
3303                         prefs_filtering_rename_path(old_id, new_id);
3304                         account_rename_path(old_id, new_id);
3305                 }
3306         }
3307         g_free(old_id);
3308         g_free(new_id);
3309
3310         return new_item;
3311 }
3312
3313 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
3314 {
3315         FolderItem *tmp = folder_item_parent(dest);
3316         gchar * src_identifier, * dst_identifier;
3317         gchar * phys_srcpath, * phys_dstpath, *tmppath;
3318
3319         while (tmp) {
3320                 if (tmp == src) {
3321                         return F_MOVE_FAILED_DEST_IS_CHILD;
3322                 }
3323                 tmp = folder_item_parent(tmp);
3324         }
3325
3326         src_identifier = folder_item_get_identifier(src);
3327         dst_identifier = folder_item_get_identifier(dest);
3328
3329         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
3330                 /* dest can be a root folder */
3331                 dst_identifier = folder_get_identifier(dest->folder);
3332         }
3333         if (src_identifier == NULL || dst_identifier == NULL) {
3334                 debug_print("Can't get identifiers\n");
3335                 return F_MOVE_FAILED;
3336         }
3337
3338         if (src->folder != dest->folder && !copy) {
3339                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
3340         }
3341
3342         phys_srcpath = folder_item_get_path(src);
3343         tmppath = folder_item_get_path(dest);
3344         phys_dstpath = g_strconcat(tmppath,
3345                        G_DIR_SEPARATOR_S,
3346                        g_path_get_basename(phys_srcpath),
3347                        NULL);
3348         g_free(tmppath);
3349
3350         if (folder_item_parent(src) == dest || src == dest) {
3351                 g_free(src_identifier);
3352                 g_free(dst_identifier);
3353                 g_free(phys_srcpath);
3354                 g_free(phys_dstpath);
3355                 return F_MOVE_FAILED_DEST_IS_PARENT;
3356         }
3357         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
3358         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
3359                 return F_MOVE_FAILED;
3360         }
3361
3362         g_free(src_identifier);
3363         g_free(dst_identifier);
3364         g_free(phys_srcpath);
3365         g_free(phys_dstpath);
3366
3367         *new_item = tmp;
3368
3369         return F_MOVE_OK;
3370 }
3371
3372 struct find_data
3373 {
3374         gboolean found;
3375 };
3376 static void find_num(gpointer key, gpointer value, gpointer data)
3377 {
3378         struct find_data *fdata = (struct find_data *)data;
3379         if (GPOINTER_TO_INT(value) == 0)
3380                 fdata->found = TRUE;
3381 }
3382
3383 static gboolean some_msgs_have_zero_num(GHashTable *hashtable)
3384 {
3385         struct find_data fdata;
3386
3387         fdata.found = FALSE;
3388         g_hash_table_foreach(hashtable, find_num, &fdata);
3389
3390         return fdata.found;
3391 }
3392
3393 /**
3394  * Copy a list of message to a new folder and remove
3395  * source messages if wanted
3396  */
3397 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
3398 {
3399         Folder *folder;
3400         GSList *l;
3401         gint num, lastnum = -1;
3402         gboolean folderscan = FALSE;
3403         GHashTable *relation;
3404         GSList *not_moved = NULL;
3405         gint total = 0, curmsg = 0;
3406         MsgInfo *msginfo = NULL;
3407
3408         cm_return_val_if_fail(dest != NULL, -1);
3409         cm_return_val_if_fail(msglist != NULL, -1);
3410
3411         folder = dest->folder;
3412
3413         cm_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3414         if (dest->no_select)
3415                 return -1;
3416
3417         msginfo = (MsgInfo *)msglist->data;
3418
3419         if (!msginfo)
3420                 return -1;
3421
3422         if (!MSG_IS_QUEUED(msginfo->flags) &&
3423             MSG_IS_DRAFT(msginfo->flags) &&
3424             folder_has_parent_of_type(dest, F_QUEUE)) {
3425                 GSList *cur = msglist;
3426                 gboolean queue_err = FALSE;
3427                 for (; cur; cur = cur->next) {
3428                         Compose *compose = NULL;
3429                         FolderItem *queue = dest;
3430                         int val = 0;
3431
3432                         msginfo = (MsgInfo *)cur->data;
3433                         compose = compose_reedit(msginfo, TRUE);
3434                         if (compose == NULL) {
3435                                 queue_err = TRUE;
3436                                 continue;
3437                         }
3438                         val = compose_queue(compose, NULL, &queue, NULL,
3439                                         FALSE);
3440                         if (val < 0) {
3441                                 queue_err = TRUE;
3442                         } else if (remove_source) {
3443                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3444                         }
3445                         if (val == 0)
3446                                 compose_close(compose);
3447                 }
3448                 return queue_err ? -1:0;
3449         }
3450
3451         relation = g_hash_table_new(g_direct_hash, g_direct_equal);
3452
3453         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3454                 MsgInfo * msginfo = (MsgInfo *) l->data;
3455
3456                 if (msginfo->planned_download != 0) {
3457                         int old_planned = msginfo->planned_download;
3458                         partial_unmark(msginfo);
3459                         /* little hack to reenable after */
3460                         msginfo->planned_download = old_planned;
3461                 }
3462         }
3463
3464         /*
3465          * Copy messages to destination folder and
3466          * store new message numbers in newmsgnums
3467          */
3468         if (folder->klass->copy_msgs != NULL) {
3469                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3470                         g_hash_table_destroy(relation);
3471                         return -1;
3472                 }
3473         } else {
3474                 MsgInfo * msginfo;
3475                 l = msglist;
3476
3477                 /* immediately stop if src and dest folders are identical */
3478                 if (l != NULL) {
3479                         msginfo = (MsgInfo *) l->data;
3480                         if (msginfo != NULL && msginfo->folder == dest) {
3481                                 g_hash_table_destroy(relation);
3482                                 return -1;
3483                         }
3484                 }
3485
3486                 for (; l != NULL ; l = g_slist_next(l)) {
3487                         msginfo = (MsgInfo *) l->data;
3488
3489                         num = folder->klass->copy_msg(folder, dest, msginfo);
3490                         if (num > 0)
3491                                 g_hash_table_insert(relation, msginfo, GINT_TO_POINTER(num));
3492                         else
3493                                 not_moved = g_slist_prepend(not_moved, msginfo);
3494                 }
3495         }
3496
3497         if (remove_source) {
3498                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3499                 FolderItem *item = msginfo->folder;
3500                 /*
3501                  * Remove source messages from their folders if
3502                  * copying was successfull and update folder
3503                  * message counts
3504                  */
3505                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3506                         item->folder->klass->remove_msgs(item->folder,
3507                                                                 msginfo->folder,
3508                                                                 msglist,
3509                                                                 relation);
3510                 }
3511                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3512                         gpointer old_key, data;
3513                         msginfo = (MsgInfo *) l->data;
3514                         item = msginfo->folder;
3515
3516                         if (g_hash_table_lookup_extended(relation, msginfo, &old_key, &data))
3517                                 num = GPOINTER_TO_INT(data);
3518                         else
3519                                 num = 0;
3520
3521                         if (g_slist_find(not_moved, msginfo))
3522                                 continue;
3523
3524                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3525                                 if (!item->folder->klass->remove_msgs)
3526                                         item->folder->klass->remove_msg(item->folder,
3527                                                                 msginfo->folder,
3528                                                                 msginfo->msgnum);
3529                                 if (!item->folder->account || item->folder->account->imap_use_trash) {
3530                                         remove_msginfo_from_cache(item, msginfo);
3531                                 }
3532                         }
3533                 }
3534         }
3535
3536         /* Read cache for dest folder */
3537         if (!dest->cache) folder_item_read_cache(dest);
3538
3539         /*
3540          * Fetch new MsgInfos for new messages in dest folder,
3541          * add them to the msgcache and update folder message counts
3542          */
3543         if (some_msgs_have_zero_num(relation)) {
3544                 folder_item_scan_full(dest, FALSE);
3545                 folderscan = TRUE;
3546         }
3547
3548         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3549         total = g_slist_length(msglist);
3550
3551         if (FOLDER_TYPE(dest->folder) == F_IMAP && total > 1) {
3552                 folder_item_scan_full(dest, FALSE);
3553                 folderscan = TRUE;
3554         }
3555         folder_item_set_batch(dest, TRUE);
3556         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3557                 MsgInfo *msginfo = (MsgInfo *) l->data;
3558                 gpointer data, old_key;
3559
3560                 if (!msginfo)
3561                         continue;
3562
3563                 if (g_hash_table_lookup_extended(relation, msginfo, &old_key, &data))
3564                         num = GPOINTER_TO_INT(data);
3565                 else
3566                         num = 0;
3567
3568                 statusbar_progress_all(curmsg++,total, 100);
3569                 if (curmsg % 100 == 0)
3570                         GTK_EVENTS_FLUSH();
3571
3572                 if (num >= 0) {
3573                         MsgInfo *newmsginfo = NULL;
3574
3575                         if (!folderscan && num > 0) {
3576                                 newmsginfo = get_msginfo(dest, num);
3577                                 if (newmsginfo != NULL) {
3578                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3579                                 }
3580                         }
3581                         if (newmsginfo == NULL) {
3582                                 if (!folderscan) {
3583                                         folder_item_scan_full(dest, FALSE);
3584                                         folderscan = TRUE;
3585                                 }
3586                                 if (msginfo->msgid != NULL) {
3587                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3588                                         if (newmsginfo != NULL) {
3589                                                 copy_msginfo_flags(msginfo, newmsginfo);
3590                                                 num = newmsginfo->msgnum;
3591                                         }
3592                                 }
3593                         }
3594
3595                         if (msginfo->planned_download
3596                             == POP3_PARTIAL_DLOAD_DELE) {
3597                                 partial_mark_for_delete(newmsginfo);
3598                         }
3599                         if (msginfo->planned_download
3600                             == POP3_PARTIAL_DLOAD_DLOAD) {
3601                                 partial_mark_for_download(newmsginfo);
3602                         }
3603                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3604                                 procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3605                                 if (newmsginfo) {
3606                                         procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3607                                         hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3608                                 }
3609                         }
3610                         procmsg_msginfo_free(newmsginfo);
3611
3612
3613                         if (num > lastnum)
3614                                 lastnum = num;
3615                 }
3616         }
3617         folder_item_set_batch(dest, FALSE);
3618         statusbar_progress_all(0,0,0);
3619         statusbar_pop_all();
3620
3621         g_hash_table_destroy(relation);
3622         if (not_moved != NULL) {
3623                 g_slist_free(not_moved);
3624                 return -1;
3625         } else
3626                 return lastnum;
3627 }
3628
3629 /**
3630  * Move a message to a new folder.
3631  *
3632  * \param dest Destination folder
3633  * \param msginfo The message
3634  */
3635 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3636 {
3637         GSList list;
3638
3639         cm_return_val_if_fail(dest != NULL, -1);
3640         cm_return_val_if_fail(msginfo != NULL, -1);
3641
3642         list.data = msginfo;
3643         list.next = NULL;
3644
3645         return do_copy_msgs(dest, &list, TRUE);
3646 }
3647
3648 /**
3649  * Move a list of messages to a new folder.
3650  *
3651  * \param dest Destination folder
3652  * \param msglist List of messages
3653  */
3654 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3655 {
3656         gint result = -1;
3657         cm_return_val_if_fail(dest != NULL, -1);
3658         cm_return_val_if_fail(msglist != NULL, -1);
3659         inc_lock();
3660         result = do_copy_msgs(dest, msglist, TRUE);
3661         inc_unlock();
3662         return result;
3663 }
3664
3665 /**
3666  * Copy a message to a new folder.
3667  *
3668  * \param dest Destination folder
3669  * \param msginfo The message
3670  */
3671 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3672 {
3673         GSList list;
3674
3675         cm_return_val_if_fail(dest != NULL, -1);
3676         cm_return_val_if_fail(msginfo != NULL, -1);
3677
3678         list.data = msginfo;
3679         list.next = NULL;
3680
3681         return do_copy_msgs(dest, &list, FALSE);
3682 }
3683
3684 /**
3685  * Copy a list of messages to a new folder.
3686  *
3687  * \param dest Destination folder
3688  * \param msglist List of messages
3689  */
3690 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3691 {
3692         gint result;
3693         cm_return_val_if_fail(dest != NULL, -1);
3694         cm_return_val_if_fail(msglist != NULL, -1);
3695
3696         inc_lock();
3697         result = do_copy_msgs(dest, msglist, FALSE);
3698         inc_unlock();
3699
3700         return result;
3701 }
3702
3703 gint folder_item_remove_msg(FolderItem *item, gint num)
3704 {
3705         Folder *folder;
3706         gint ret;
3707         MsgInfo *msginfo;
3708
3709         cm_return_val_if_fail(item != NULL, -1);
3710         folder = item->folder;
3711         cm_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3712         if (item->no_select)
3713                 return -1;
3714
3715         if (!item->cache) folder_item_read_cache(item);
3716
3717         msginfo = msgcache_get_msg(item->cache, num);
3718         if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3719                 procmsg_msginfo_free(msginfo);
3720                 return -1;
3721         }
3722         ret = folder->klass->remove_msg(folder, item, num);
3723
3724         if (!item->folder->account || item->folder->account->imap_use_trash) {
3725                 if (msginfo != NULL) {
3726                         if (ret == 0)
3727                                 remove_msginfo_from_cache(item, msginfo);
3728                         procmsg_msginfo_free(msginfo);
3729                 }
3730         }
3731
3732         return ret;
3733 }
3734
3735 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3736 {
3737         Folder *folder;
3738         gint ret = 0;
3739         GSList *real_list = NULL, *cur = NULL;
3740
3741         cm_return_val_if_fail(item != NULL, -1);
3742         folder = item->folder;
3743         cm_return_val_if_fail(folder != NULL, -1);
3744         if (item->no_select)
3745                 return -1;
3746         inc_lock();
3747         if (!item->cache) folder_item_read_cache(item);
3748
3749         folder_item_update_freeze();
3750
3751         /* filter out locked mails */
3752         for (cur = msglist; cur; cur = cur->next) {
3753                 MsgInfo *info = (MsgInfo *)cur->data;
3754                 if (!MSG_IS_LOCKED(info->flags))
3755                         real_list = g_slist_prepend(real_list, info);
3756         }
3757
3758         real_list = g_slist_reverse(real_list);
3759
3760         if (item->folder->klass->remove_msgs) {
3761                 ret = item->folder->klass->remove_msgs(item->folder,
3762                                                         item,
3763                                                         real_list,
3764                                                         NULL);
3765         }
3766         cur = real_list;
3767         while (ret == 0 && cur != NULL) {
3768                 MsgInfo *msginfo = (MsgInfo *)cur->data;
3769                 if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3770                         cur = cur->next;
3771                         continue;
3772                 }
3773                 if (!item->folder->klass->remove_msgs)
3774                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3775                 if (ret != 0) break;
3776                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3777                 cur = cur->next;
3778         }
3779         g_slist_free(real_list);
3780         folder_item_scan_full(item, FALSE);
3781         folder_item_update_thaw();
3782         inc_unlock();
3783         return ret;
3784 }
3785
3786 gint folder_item_expunge(FolderItem *item)
3787 {
3788         Folder *folder = item->folder;
3789         gint result = 0;
3790         if (folder == NULL)
3791                 return -1;
3792         if (folder->klass->expunge) {
3793                 GSList *msglist = folder_item_get_msg_list(item);
3794                 GSList *cur;
3795                 result = folder->klass->expunge(folder, item);
3796                 if (result == 0) {
3797                         for (cur = msglist; cur; cur = cur->next) {
3798                                 MsgInfo *msginfo = (MsgInfo *)cur->data;
3799                                 if (MSG_IS_DELETED(msginfo->flags)) {
3800                                         remove_msginfo_from_cache(item, msginfo);
3801                                 }
3802                         }
3803                 }
3804                 procmsg_msg_list_free(msglist);
3805         }
3806         return result;
3807 }
3808
3809 gint folder_item_remove_all_msg(FolderItem *item)
3810 {
3811         Folder *folder;
3812         gint result;
3813
3814         cm_return_val_if_fail(item != NULL, -1);
3815         if (item->no_select)
3816                 return -1;
3817
3818         folder = item->folder;
3819
3820         inc_lock();
3821         if (folder->klass->remove_all_msg != NULL) {
3822                 result = folder->klass->remove_all_msg(folder, item);
3823
3824                 if (result == 0) {
3825                         folder_item_free_cache(item, TRUE);
3826                         item->cache = msgcache_new();
3827                         item->cache_dirty = TRUE;
3828                         item->mark_dirty = TRUE;
3829                         item->tags_dirty = TRUE;
3830                 }
3831         } else {
3832                 MsgInfoList *msglist;
3833
3834                 msglist = folder_item_get_msg_list(item);
3835                 result = folder_item_remove_msgs(item, msglist);
3836                 procmsg_msg_list_free(msglist);
3837         }
3838
3839         if (result == 0) {
3840                 item->new_msgs = 0;
3841                 item->unread_msgs = 0;
3842                 item->unreadmarked_msgs = 0;
3843                 item->marked_msgs = 0;
3844                 item->total_msgs = 0;
3845                 item->replied_msgs = 0;
3846                 item->forwarded_msgs = 0;
3847                 item->locked_msgs = 0;
3848                 item->ignored_msgs = 0;
3849                 item->watched_msgs = 0;
3850                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3851         }
3852
3853         inc_unlock();
3854         return result;
3855 }
3856
3857 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3858 {
3859         cm_return_if_fail(item != NULL);
3860         cm_return_if_fail(msginfo != NULL);
3861
3862         item->mark_dirty = TRUE;
3863
3864         if (item->no_select)
3865                 return;
3866
3867         if (item->folder->klass->change_flags != NULL && item->scanning != ITEM_SCANNING_WITH_FLAGS) {
3868                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3869         } else {
3870                 msginfo->flags.perm_flags = newflags;
3871         }
3872 }
3873
3874 void folder_item_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_set, GSList *tags_unset)
3875 {
3876         Folder *folder = NULL;
3877
3878         if (!msginfo)
3879                 return;
3880         if (!item)
3881                 return;
3882         if (!tags_set && !tags_unset)
3883                 return;
3884
3885         folder = item->folder;
3886         if (!folder)
3887                 return;
3888
3889         item->tags_dirty = TRUE;
3890
3891         if (folder->klass->commit_tags == NULL)
3892                 return;
3893
3894         folder->klass->commit_tags(item, msginfo, tags_set, tags_unset);
3895 }
3896
3897 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3898 {
3899         Folder *folder;
3900
3901         cm_return_val_if_fail(item != NULL, FALSE);
3902         if (item->no_select)
3903                 return FALSE;
3904
3905         folder = item->folder;
3906
3907         cm_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3908
3909         return folder->klass->is_msg_changed(folder, item, msginfo);
3910 }
3911
3912 void folder_item_discard_cache(FolderItem *item)
3913 {
3914         gchar *dir;
3915         gchar *cache;
3916
3917         if (!item)
3918                 return;
3919
3920         if (item->cache) {
3921                 msgcache_destroy(item->cache);
3922                 item->cache = NULL;
3923         }
3924         dir = folder_item_get_path(item);
3925         if (is_dir_exist(dir))
3926                 remove_all_numbered_files(dir);
3927         g_free(dir);
3928
3929         cache = folder_item_get_cache_file(item);
3930         if (is_file_exist(cache))
3931                 claws_unlink(cache);
3932         g_free(cache);
3933
3934 }
3935
3936 static gchar *folder_item_get_cache_file(FolderItem *item)
3937 {
3938         gchar *path;
3939         gchar *file;
3940         gchar *old_file;
3941
3942         cm_return_val_if_fail(item != NULL, NULL);
3943         cm_return_val_if_fail(item->path != NULL, NULL);
3944
3945         path = folder_item_get_path(item);
3946         cm_return_val_if_fail(path != NULL, NULL);
3947         if (!is_dir_exist(path))
3948                 make_dir_hier(path);
3949         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3950         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
3951
3952         if (!is_file_exist(file) && is_file_exist(old_file))
3953                 move_file(old_file, file, FALSE);
3954         g_free(old_file);
3955         g_free(path);
3956
3957         return file;
3958 }
3959
3960 static gchar *folder_item_get_mark_file(FolderItem *item)
3961 {
3962         gchar *path;
3963         gchar *file;
3964         gchar *old_file;
3965
3966         cm_return_val_if_fail(item != NULL, NULL);
3967         cm_return_val_if_fail(item->path != NULL, NULL);
3968
3969         path = folder_item_get_path(item);
3970         cm_return_val_if_fail(path != NULL, NULL);
3971         if (!is_dir_exist(path))
3972                 make_dir_hier(path);
3973         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3974         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
3975
3976         if (!is_file_exist(file) && is_file_exist(old_file))
3977                 move_file(old_file, file, FALSE);
3978         g_free(old_file);
3979         g_free(path);
3980
3981         return file;
3982 }
3983
3984 static gchar *folder_item_get_tags_file(FolderItem *item)
3985 {
3986         gchar *path;
3987         gchar *identifier;
3988         gchar *file;
3989
3990         /* we save tags files in rc_dir, because tagsrc is there too,
3991          * and storing tags directly in the mailboxes would give strange
3992          * result when using another Claws mailbox from another install
3993          * with different tags. */
3994
3995         cm_return_val_if_fail(item != NULL, NULL);
3996
3997         identifier = folder_item_get_identifier(item);
3998         cm_return_val_if_fail(identifier != NULL, NULL);
3999
4000 #ifdef G_OS_WIN32
4001         while (strchr(identifier, '/'))
4002                 *strchr(identifier, '/') = '\\';
4003 #endif
4004
4005         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4006                            "tagsdb", G_DIR_SEPARATOR_S,
4007                            identifier, NULL);
4008
4009         g_free(identifier);
4010
4011         if (!is_dir_exist(path))
4012                 make_dir_hier(path);
4013
4014         file = g_strconcat(path, G_DIR_SEPARATOR_S, TAGS_FILE, NULL);
4015
4016         g_free(path);
4017
4018         return file;
4019 }
4020
4021 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
4022 {
4023         XMLNode *xmlnode = (XMLNode *) nodedata;
4024         Folder *folder = (Folder *) data;
4025         FolderItem *item;
4026
4027         cm_return_val_if_fail(xmlnode != NULL, NULL);
4028         cm_return_val_if_fail(folder != NULL, NULL);
4029
4030         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
4031                 g_warning("tag name != \"folderitem\"\n");
4032                 return NULL;
4033         }
4034
4035         item = folder_item_new(folder, "", "");
4036         if (folder->klass->item_set_xml != NULL)
4037                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
4038         else
4039                 folder_item_set_xml(folder, item, xmlnode->tag);
4040
4041         item->folder = folder;
4042
4043         switch (item->stype) {
4044         case F_INBOX:  folder->inbox  = item; break;
4045         case F_OUTBOX: folder->outbox = item; break;
4046         case F_DRAFT:  folder->draft  = item; break;
4047         case F_QUEUE:  folder->queue  = item; break;
4048         case F_TRASH:  folder->trash  = item; break;
4049         default:       break;
4050         }
4051         folder_item_prefs_read_config(item);
4052
4053         return item;
4054 }
4055
4056 static gboolean folder_item_set_node(GNode *node, gpointer data)
4057 {
4058         cm_return_val_if_fail(node->data != NULL, -1);
4059
4060         FolderItem *item = (FolderItem *) node->data;
4061         item->node = node;
4062
4063         return FALSE;
4064 }
4065
4066 static Folder *folder_get_from_xml(GNode *node)
4067 {
4068         Folder *folder;
4069         XMLNode *xmlnode;
4070         GList *list;
4071         FolderClass *klass = NULL;
4072         GNode *cur;
4073
4074         cm_return_val_if_fail(node->data != NULL, NULL);
4075
4076         xmlnode = node->data;
4077         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
4078                 g_warning("tag name != \"folder\"\n");
4079                 return NULL;
4080         }
4081         list = xmlnode->tag->attr;
4082         for (; list != NULL; list = list->next) {
4083                 XMLAttr *attr = list->data;
4084
4085                 if (!attr || !attr->name || !attr->value) continue;
4086                 if (!strcmp(attr->name, "type"))
4087                         klass = folder_get_class_from_string(attr->value);
4088         }
4089         if (klass == NULL)
4090                 return NULL;
4091
4092         folder = folder_new(klass, "", "");
4093         cm_return_val_if_fail(folder != NULL, NULL);
4094
4095         if (klass->set_xml)
4096                 klass->set_xml(folder, xmlnode->tag);
4097         else
4098                 folder_set_xml(folder, xmlnode->tag);
4099
4100         cur = node->children;
4101         while (cur != NULL) {
4102                 GNode *itemnode;
4103
4104                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
4105                 g_node_append(folder->node, itemnode);
4106                 cur = cur->next;
4107         }
4108         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
4109
4110         return folder;
4111 }
4112
4113 gchar *folder_get_list_path(void)
4114 {
4115         static gchar *filename = NULL;
4116
4117         if (!filename)
4118                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4119                                         FOLDER_LIST, NULL);
4120
4121         return filename;
4122 }
4123
4124 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
4125 {
4126         FolderItem *item = (FolderItem *) nodedata;
4127         XMLTag *tag;
4128
4129         cm_return_val_if_fail(item != NULL, NULL);
4130
4131         if (item->folder->klass->item_get_xml != NULL)
4132                 tag = item->folder->klass->item_get_xml(item->folder, item);
4133         else
4134                 tag = folder_item_get_xml(item->folder, item);
4135
4136         return xml_node_new(tag, NULL);
4137 }
4138
4139 static GNode *folder_get_xml_node(Folder *folder)
4140 {
4141         GNode *node;
4142         XMLNode *xmlnode;
4143         XMLTag *tag;
4144
4145         cm_return_val_if_fail(folder != NULL, NULL);
4146
4147         if (folder->klass->get_xml != NULL)
4148                 tag = folder->klass->get_xml(folder);
4149         else
4150                 tag = folder_get_xml(folder);
4151
4152         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
4153
4154         xmlnode = xml_node_new(tag, NULL);
4155
4156         node = g_node_new(xmlnode);
4157
4158         cm_return_val_if_fail (folder->node != NULL, NULL);
4159
4160         if (folder->node->children) {
4161                 GNode *cur;
4162
4163                 cur = folder->node->children;
4164                 while (cur) {
4165                         GNode *xmlnode;
4166
4167                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
4168                         g_node_append(node, xmlnode);
4169                         cur = cur->next;
4170                 }
4171         }
4172
4173         return node;
4174 }
4175
4176 static void folder_update_op_count_rec(GNode *node)
4177 {
4178         FolderItem *fitem = FOLDER_ITEM(node->data);
4179
4180         if (g_node_depth(node) > 0) {
4181                 if (fitem->op_count > 0) {
4182                         fitem->op_count = 0;
4183                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
4184                 }
4185                 if (node->children) {
4186                         GNode *child;
4187
4188                         child = node->children;
4189                         while (child) {
4190                                 GNode *cur;
4191
4192                                 cur = child;
4193                                 child = cur->next;
4194                                 folder_update_op_count_rec(cur);
4195                         }
4196                 }
4197         }
4198 }
4199
4200 void folder_update_op_count(void)
4201 {
4202         GList *cur;
4203         Folder *folder;
4204
4205         for (cur = folder_list; cur != NULL; cur = cur->next) {
4206                 folder = cur->data;
4207                 folder_update_op_count_rec(folder->node);
4208         }
4209 }
4210
4211 typedef struct _type_str {
4212         gchar * str;
4213         gint type;
4214 } type_str;
4215
4216
4217 /*
4218 static gchar * folder_item_get_tree_identifier(FolderItem * item)
4219 {
4220         if (item->parent != NULL) {
4221                 gchar * path;
4222                 gchar * id;
4223
4224                 path = folder_item_get_tree_identifier(item->parent);
4225                 if (path == NULL)
4226                         return NULL;
4227
4228                 id = g_strconcat(path, "/", item->name, NULL);
4229                 g_free(path);
4230
4231                 return id;
4232         }
4233         else {
4234                 return g_strconcat("/", item->name, NULL);
4235         }
4236 }
4237 */
4238
4239 /* CLAWS: temporary local folder for filtering */
4240 #define TEMP_FOLDER "TEMP_FOLDER"
4241 #define PROCESSING_FOLDER_ITEM "processing"
4242
4243 static FolderItem *folder_create_processing_folder(int account_id)
4244 {
4245         static Folder *processing_folder = NULL;
4246         FolderItem *processing_folder_item;
4247
4248         gchar *processing_folder_item_name = NULL;
4249
4250         processing_folder_item_name = g_strdup_printf("%s-%d", PROCESSING_FOLDER_ITEM, account_id);
4251
4252         if (processing_folder == NULL) {
4253                 gchar *tmppath =
4254                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4255                                 "tempfolder", NULL);
4256                 processing_folder =
4257                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
4258                 g_free(tmppath);
4259                 tmppath = NULL;
4260
4261                 g_assert(processing_folder != NULL);
4262                 processing_folder->klass->scan_tree(processing_folder);
4263         }
4264         g_assert(processing_folder != NULL);
4265
4266         processing_folder_item = folder_find_child_item_by_name(FOLDER_ITEM(processing_folder->node->data),
4267                                         processing_folder_item_name);
4268         if (processing_folder_item) {
4269                 debug_print("*TMP* already created %s\n", folder_item_get_path(processing_folder_item));
4270         } else {
4271                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
4272                                                                                  processing_folder->node->data,
4273                                                                                  processing_folder_item_name);
4274                 folder_item_append(FOLDER_ITEM(processing_folder->node->data), processing_folder_item);
4275                 debug_print("*TMP* creating %s\n", folder_item_get_path(processing_folder_item));
4276         }
4277         g_free(processing_folder_item_name);
4278         g_assert(processing_folder_item != NULL);
4279
4280         return(processing_folder_item);
4281 }
4282
4283 FolderItem *folder_get_default_processing(int account_id)
4284 {
4285         return folder_create_processing_folder(account_id);
4286 }
4287
4288 /* folder_persist_prefs_new() - return hash table with persistent
4289  * settings (and folder name as key).
4290  * (note that in claws other options are in the folder_item_prefs_RC
4291  * file, so those don't need to be included in PersistPref yet)
4292  */
4293 static GHashTable *folder_persist_prefs_new(Folder *folder)
4294 {
4295         GHashTable *pptable;
4296
4297         cm_return_val_if_fail(folder, NULL);
4298         pptable = g_hash_table_new(g_str_hash, g_str_equal);
4299         folder_get_persist_prefs_recursive(folder->node, pptable);
4300         return pptable;
4301 }
4302
4303 static void folder_persist_prefs_free(GHashTable *pptable)
4304 {
4305         cm_return_if_fail(pptable);
4306         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
4307         g_hash_table_destroy(pptable);
4308 }
4309
4310 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
4311 {
4312         if (pptable == NULL || name == NULL) return NULL;
4313         return g_hash_table_lookup(pptable, name);
4314 }
4315
4316 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
4317 {
4318         const PersistPrefs *pp;
4319         gchar *id = folder_item_get_identifier(item);
4320
4321         pp = folder_get_persist_prefs(pptable, id);
4322         g_free(id);
4323
4324         if (!pp) return;
4325
4326         /* CLAWS: since not all folder properties have been migrated to
4327          * folderlist.xml, we need to call the old stuff first before
4328          * setting things that apply both to Main and Claws. */
4329         folder_item_prefs_read_config(item);
4330
4331         item->collapsed = pp->collapsed;
4332         item->thread_collapsed = pp->thread_collapsed;
4333         item->threaded  = pp->threaded;
4334         item->ret_rcpt  = pp->ret_rcpt;
4335         item->hide_read_msgs = pp->hide_read_msgs;
4336         item->hide_del_msgs = pp->hide_del_msgs;
4337         item->hide_read_threads = pp->hide_read_threads;
4338         item->sort_key  = pp->sort_key;
4339         item->sort_type = pp->sort_type;
4340 }
4341
4342 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
4343 {
4344         FolderItem *item = FOLDER_ITEM(node->data);
4345         PersistPrefs *pp;
4346         GNode *child, *cur;
4347         gchar *id;
4348
4349         cm_return_if_fail(node != NULL);
4350         cm_return_if_fail(item != NULL);
4351
4352         /* NOTE: item->path == NULL means top level folder; not interesting
4353          * to store preferences of that one.  */
4354         if (item->path) {
4355                 id = folder_item_get_identifier(item);
4356                 pp = g_new0(PersistPrefs, 1);
4357                 cm_return_if_fail(pp != NULL);
4358                 pp->collapsed = item->collapsed;
4359                 pp->thread_collapsed = item->thread_collapsed;
4360                 pp->threaded  = item->threaded;
4361                 pp->ret_rcpt  = item->ret_rcpt;
4362                 pp->hide_read_msgs = item->hide_read_msgs;
4363                 pp->hide_del_msgs = item->hide_del_msgs;
4364                 pp->hide_read_threads = item->hide_read_threads;
4365                 pp->sort_key  = item->sort_key;
4366                 pp->sort_type = item->sort_type;
4367                 g_hash_table_insert(pptable, id, pp);
4368         }
4369
4370         if (node->children) {
4371                 child = node->children;
4372                 while (child) {
4373                         cur = child;
4374                         child = cur->next;
4375                         folder_get_persist_prefs_recursive(cur, pptable);
4376                 }
4377         }
4378 }
4379
4380 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
4381 {
4382         g_free(key);
4383         g_free(val);
4384         return TRUE;
4385 }
4386
4387 void folder_item_apply_processing(FolderItem *item)
4388 {
4389         GSList *processing_list;
4390         GSList *mlist, *cur;
4391         guint total = 0, curmsg = 0;
4392         gint last_apply_per_account;
4393
4394         cm_return_if_fail(item != NULL);
4395
4396         if (item->no_select)
4397                return;
4398
4399         processing_list = item->prefs->processing;
4400
4401         if (!pre_global_processing && !processing_list
4402         &&  !post_global_processing)
4403                 return;
4404
4405         debug_print("processing %s\n", item->name);
4406         folder_item_update_freeze();
4407
4408         inc_lock();
4409
4410         mlist = folder_item_get_msg_list(item);
4411         total = g_slist_length(mlist);
4412         statusbar_print_all(_("Processing messages..."));
4413
4414         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
4415         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
4416
4417         folder_item_set_batch(item, TRUE);
4418         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4419                 MsgInfo * msginfo;
4420
4421                 msginfo = (MsgInfo *) cur->data;
4422
4423                 /* reset parameters that can be modified by processing */
4424                 msginfo->hidden = 0;
4425                 msginfo->score = 0;
4426
4427                 statusbar_progress_all(curmsg++,total, 10);
4428
4429                 /* apply pre global rules */
4430                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
4431                                 FILTERING_PRE_PROCESSING, NULL);
4432
4433                 /* apply rules of the folder */
4434                 filter_message_by_msginfo(processing_list, msginfo, NULL,
4435                                 FILTERING_FOLDER_PROCESSING, item->name);
4436
4437                 /* apply post global rules */
4438                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
4439                                 FILTERING_POST_PROCESSING, NULL);
4440                 if (curmsg % 1000 == 0)
4441                         GTK_EVENTS_FLUSH();
4442         }
4443         folder_item_set_batch(item, FALSE);
4444
4445         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
4446
4447         if (pre_global_processing || processing_list
4448             || post_global_processing)
4449                 filtering_move_and_copy_msgs(mlist);
4450         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4451                 MsgInfo * msginfo = (MsgInfo *)cur->data;
4452                 procmsg_msginfo_free(msginfo);
4453         }
4454         g_slist_free(mlist);
4455
4456         statusbar_progress_all(0,0,0);
4457         statusbar_pop_all();
4458
4459         inc_unlock();
4460
4461         folder_item_update_thaw();
4462 }
4463
4464 /*
4465  *  functions for handling FolderItem content changes
4466  */
4467 static gint folder_item_update_freeze_cnt = 0;
4468
4469 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
4470 {
4471         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
4472                 FolderItemUpdateData source;
4473
4474                 source.item = item;
4475                 source.update_flags = update_flags;
4476                 source.msg = msg;
4477                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4478         } else {
4479                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
4480         }
4481 }
4482
4483 /**
4484  * Notify the folder system about changes to a folder. If the
4485  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
4486  * be invoked, otherwise the changes will be remebered until
4487  * the folder system is thawed.
4488  *
4489  * \param item The FolderItem that was changed
4490  * \param update_flags Type of changed that was made
4491  */
4492 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
4493 {
4494         folder_item_update_with_msg(item, update_flags, NULL);
4495 }
4496
4497 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
4498 {
4499         GNode *node = item->folder->node;
4500
4501         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
4502         node = node->children;
4503
4504         folder_item_update(item, update_flags);
4505         while (node != NULL) {
4506                 if (node && node->data) {
4507                         FolderItem *next_item = (FolderItem*) node->data;
4508
4509                         folder_item_update(next_item, update_flags);
4510                 }
4511                 node = node->next;
4512         }
4513 }
4514
4515 void folder_item_update_freeze(void)
4516 {
4517         folder_item_update_freeze_cnt++;
4518 }
4519
4520 static void folder_item_update_func(FolderItem *item, gpointer data)
4521 {
4522         FolderItemUpdateData source;
4523
4524         if (item->update_flags) {
4525                 source.item = item;
4526                 source.update_flags = item->update_flags;
4527                 source.msg = NULL;
4528                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4529                 item->update_flags = 0;
4530         }
4531 }
4532
4533 void folder_item_update_thaw(void)
4534 {
4535         if (folder_item_update_freeze_cnt > 0)
4536                 folder_item_update_freeze_cnt--;
4537         if (folder_item_update_freeze_cnt == 0) {
4538                 /* Update all folders */
4539                 folder_func_to_all_folders(folder_item_update_func, NULL);
4540         }
4541 }
4542
4543 void folder_item_synchronise(FolderItem *item)
4544 {
4545         if (!item)
4546                 return;
4547         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4548                 statuswindow_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4549                 item->folder->klass->synchronise(item,
4550                         item->prefs->offlinesync_days);
4551                 if (item->prefs->offlinesync_days > 0 &&
4552                     item->prefs->remove_old_bodies)
4553                         folder_item_clean_local_files(item, item->prefs->offlinesync_days);
4554                 statuswindow_pop_all();
4555         }
4556 }
4557
4558 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4559 {
4560         Folder *folder = (Folder *)data;
4561         if (folder == NULL || item->folder == folder) {
4562                 folder_item_synchronise(item);
4563         }
4564 }
4565
4566 void folder_synchronise(Folder *folder)
4567 {
4568         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4569 }
4570
4571 typedef struct _WantSyncData {
4572         Folder *folder;
4573         gboolean want_sync;
4574 } WantSyncData;
4575
4576 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4577 {
4578         WantSyncData *want_sync_data = (WantSyncData *)data;
4579
4580         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4581                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4582                         want_sync_data->want_sync |= TRUE;
4583         }
4584 }
4585
4586 gboolean folder_want_synchronise(Folder *folder)
4587 {
4588         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4589         gboolean result;
4590         want_sync_data->folder = folder;
4591         want_sync_data->want_sync = FALSE;
4592
4593         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4594         result = want_sync_data->want_sync;
4595         g_free(want_sync_data);
4596         if (result > 0)
4597                 debug_print("Folder %s wants sync\n", folder->name);
4598         return result;
4599 }
4600
4601 void folder_item_set_batch (FolderItem *item, gboolean batch)
4602 {
4603         if (!item || !item->folder)
4604                 return;
4605         if (item->folder->klass->set_batch) {
4606                 item->folder->klass->set_batch(item->folder, item, batch);
4607         }
4608 }
4609
4610 gboolean folder_has_parent_of_type(FolderItem *item,
4611                                           SpecialFolderItemType type)
4612 {
4613         FolderItem *cur = item;
4614
4615         if (!item)
4616                 return FALSE;
4617         /* if we already know it, make it short */
4618         if (item->parent_stype != -1) {
4619                 return (item->parent_stype == type);
4620         }
4621
4622         /* if we don't, find the type from the first possible parent,
4623          * and set our parent type to be faster next time */
4624         while (cur) {
4625                 if (cur->stype == type || cur->parent_stype == type) {
4626                         item->parent_stype = type;
4627                         return TRUE;
4628                 }
4629                 cur = folder_item_parent(cur);
4630         }
4631
4632         /* if we didn't match what was asked, we didn't return. If our
4633          * parent type is unknown, we may as well find it now to be faster
4634          * later. */
4635         if (item->parent_stype == -1) {
4636                 cur = item;
4637                 while (cur) {
4638                         /* here's an exception: Inbox subfolders are normal. */
4639                         if (item->parent_stype == -1 && cur->stype == F_INBOX
4640                         && item != cur) {
4641                                 item->parent_stype = F_NORMAL;
4642                                 break;
4643                         }
4644                         /* ah, we know this parent's parent's type, we may as
4645                          * well copy it instead of going up the full way */
4646                         if (cur->parent_stype != -1) {
4647                                 item->parent_stype = cur->parent_stype;
4648                                 break;
4649                         }
4650                         /* we found a parent that has a special type. That's
4651                          * our parent type. */
4652                         if (cur->stype != F_NORMAL) {
4653                                 cur->parent_stype = cur->stype;
4654                                 item->parent_stype = cur->stype;
4655                                 break;
4656                         }
4657                         /* if we didn't find anything, go up once more */
4658                         cur = folder_item_parent(cur);
4659                 }
4660                 /* as we still didn't find anything, our parents must all be
4661                  * normal. */
4662                 if (item->parent_stype == -1) {
4663                         item->parent_stype = F_NORMAL;
4664                 }
4665         }
4666         return FALSE;
4667 }
4668
4669 gboolean folder_is_child_of(FolderItem *item, FolderItem *parent)
4670 {
4671         if (item == NULL || parent == NULL)
4672                 return FALSE;
4673
4674         while (item != NULL) {
4675                 if (parent == item)
4676                         return TRUE;
4677
4678                 item = folder_item_parent(item);
4679         }
4680
4681         return FALSE;
4682 }
4683
4684
4685 gboolean folder_subscribe (const gchar *uri)
4686 {
4687         GList *cur;
4688         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4689                 Folder *folder = (Folder *) cur->data;
4690
4691                 if (folder->klass->subscribe
4692                 &&  folder->klass->subscribe(folder, uri)) {
4693                         return TRUE;
4694                 }
4695         }
4696         return FALSE;
4697
4698 }
4699
4700 gboolean folder_get_sort_type           (Folder         *folder,
4701                                          FolderSortKey  *sort_key,
4702                                          FolderSortType *sort_type)
4703 {
4704         if (!folder || !sort_key || !sort_type)
4705                 return FALSE;
4706         if (folder->klass->get_sort_type == NULL)
4707                 return FALSE;
4708         folder->klass->get_sort_type(folder, sort_key, sort_type);
4709         return TRUE;
4710 }
4711
4712 gint folder_item_search_msgs    (Folder                 *folder,
4713                                  FolderItem             *container,
4714                                  MsgNumberList          **msgs,
4715                                  gboolean               *on_server,
4716                                  MatcherList            *predicate,
4717                                  SearchProgressNotify   progress_cb,
4718                                  gpointer               progress_data)
4719 {
4720         gint result = -1;
4721
4722         folder_item_update_freeze();
4723
4724         if (folder->klass->search_msgs)
4725                 result = folder->klass->search_msgs(folder, container,
4726                                 msgs, on_server, predicate, progress_cb, progress_data);
4727         if (result < 0)
4728                 result = folder_item_search_msgs_local(folder, container,
4729                                 msgs, on_server, predicate, progress_cb, progress_data);
4730
4731         folder_item_update_thaw();
4732
4733         return result;
4734 }
4735
4736 MsgNumberList *folder_item_get_number_list(FolderItem *item)
4737 {
4738         GSList *nums = NULL;
4739         GSList *msglist = folder_item_get_msg_list(item);
4740
4741         nums = procmsg_get_number_list_for_msgs(msglist);
4742         procmsg_msg_list_free(msglist);
4743
4744         return nums;
4745 }
4746
4747 gint folder_item_search_msgs_local      (Folder                 *folder,
4748                                          FolderItem             *container,
4749                                          MsgNumberList          **msgs,
4750                                          gboolean               *on_server,
4751                                          MatcherList            *predicate,
4752                                          SearchProgressNotify   progress_cb,
4753                                          gpointer               progress_data)
4754 {
4755         GSList *result = NULL;
4756         GSList *cur = NULL;
4757         gint matched_count = 0;
4758         guint processed_count = 0;
4759         gint msgcount;
4760         GSList *nums = NULL;
4761
4762         if (*msgs == NULL) {
4763                 nums = folder_item_get_number_list(container);
4764         } else {
4765                 nums = *msgs;
4766         }
4767
4768         msgcount = g_slist_length(nums);
4769
4770         if (msgcount < 0)
4771                 return -1;
4772
4773         for (cur = nums; cur != NULL; cur = cur->next) {
4774                 guint msgnum = GPOINTER_TO_UINT(cur->data);
4775                 MsgInfo *msg = folder_item_get_msginfo(container, msgnum);
4776
4777                 if (msg == NULL) {
4778                         g_slist_free(result);
4779                         return -1;
4780                 }
4781
4782                 if (matcherlist_match(predicate, msg)) {
4783                         result = g_slist_prepend(result, GUINT_TO_POINTER(msg->msgnum));
4784                         matched_count++;
4785                 }
4786                 processed_count++;
4787
4788                 if (progress_cb != NULL
4789                     && !progress_cb(progress_data, FALSE, processed_count,
4790                             matched_count, msgcount))
4791                         break;
4792         }
4793
4794         g_slist_free(nums);
4795         *msgs = g_slist_reverse(result);
4796
4797         return matched_count;
4798 }
4799