src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2009 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 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33 #include <stdlib.h>
  34 #ifdef WIN32
  35 #include <w32lib.h>
  36 #endif
  37
  38 #include "folder.h"
  39 #include "session.h"
  40 #include "inc.h"
  41 #include "imap.h"
  42 #include "news.h"
  43 #include "mh.h"
  44 #include "utils.h"
  45 #include "xml.h"
  46 #include "codeconv.h"
  47 #include "prefs_gtk.h"
  48 #include "account.h"
  49 #include "filtering.h"
  50 #include "procheader.h"
  51 #include "hooks.h"
  52 #include "log.h"
  53 #include "folder_item_prefs.h"
  54 #include "remotefolder.h"
  55 #include "partial_download.h"
  56 #include "statusbar.h"
  57 #include "gtkutils.h"
  58 #include "timing.h"
  59 #include "compose.h"
  60 #include "main.h"
  61
  62 /* Dependecies to be removed ?! */
  63 #include "prefs_common.h"
  64 #include "prefs_account.h"
  65
  66 /* Define possible missing constants for Windows. */
  67 #ifdef G_OS_WIN32
  68 # ifndef S_IRGRP
  69 # define S_IRGRP 0
  70 # define S_IWGRP 0
  71 # endif
  72 # ifndef S_IROTH
  73 # define S_IROTH 0
  74 # define S_IWOTH 0
  75 # endif
  76 #endif
  77
  78 static GList *folder_list = NULL;
  79 static GSList *class_list = NULL;
  80 static GSList *folder_unloaded_list = NULL;
  81
  82 void folder_init                (Folder         *folder,
  83                                  const gchar    *name);
  84
  85 static gchar *folder_item_get_cache_file        (FolderItem     *item);
  86 static gchar *folder_item_get_mark_file (FolderItem     *item);
  87 static gchar *folder_item_get_tags_file (FolderItem     *item);
  88 static gchar *folder_get_list_path      (void);
  89 static GNode *folder_get_xml_node       (Folder         *folder);
  90 static Folder *folder_get_from_xml      (GNode          *node);
  91 static void folder_update_op_count_rec  (GNode          *node);
  92
  93
  94 static void folder_get_persist_prefs_recursive
  95                                         (GNode *node, GHashTable *pptable);
  96 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  97 static void folder_item_read_cache              (FolderItem *item);
  98 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  99 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
 100                                          MsgInfo *msg);
 101 static GHashTable *folder_persist_prefs_new     (Folder *folder);
 102 static void folder_persist_prefs_free           (GHashTable *pptable);
 103 static void folder_item_restore_persist_prefs   (FolderItem *item, GHashTable *pptable);
 104
 105 void folder_system_init(void)
 106 {
 107         folder_register_class(mh_get_class());
 108         folder_register_class(imap_get_class());
 109         folder_register_class(news_get_class());
 110 }
 111
 112 static GSList *folder_get_class_list(void)
 113 {
 114         return class_list;
 115 }
 116
 117 void folder_register_class(FolderClass *klass)
 118 {
 119         GSList *xmllist, *cur;
 120
 121         debug_print("registering folder class %s\n", klass->idstr);
 122
 123         class_list = g_slist_append(class_list, klass);
 124
 125         xmllist = g_slist_copy(folder_unloaded_list);
 126         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
 127                 GNode *node = (GNode *) cur->data;
 128                 XMLNode *xmlnode = (XMLNode *) node->data;
 129                 GList *cur = xmlnode->tag->attr;
 130
 131                 for (; cur != NULL; cur = g_list_next(cur)) {
 132                         XMLAttr *attr = (XMLAttr *) cur->data;
 133
 134                         if (!attr || !attr->name || !attr->value) continue;
 135                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
 136                                 Folder *folder;
 137
 138                                 folder = folder_get_from_xml(node);
 139                                 if (folder) {
 140                                         folder_add(folder);
 141                                         folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
 142                                 }
 143                                 cur = NULL;
 144                                 continue;
 145                         }
 146                 }
 147         }
 148         g_slist_free(xmllist);
 149 }
 150
 151 void folder_unregister_class(FolderClass *klass)
 152 {
 153         GList *folderlist, *cur;
 154
 155         debug_print("unregistering folder class %s\n", klass->idstr);
 156
 157         class_list = g_slist_remove(class_list, klass);
 158
 159         folderlist = g_list_copy(folder_get_list());
 160         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 161                 Folder *folder = (Folder *) cur->data;
 162
 163                 if (folder->klass == klass) {
 164                         GNode *xmlnode = folder_get_xml_node(folder);
 165                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
 166                         folder_destroy(folder);
 167                 }
 168         }
 169         g_list_free(folderlist);
 170 }
 171
 172 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 173 {
 174         Folder *folder = NULL;
 175         FolderItem *item;
 176
 177         cm_return_val_if_fail(klass != NULL, NULL);
 178
 179         name = name ? name : path;
 180         folder = klass->new_folder(name, path);
 181
 182         /* Create root folder item */
 183         item = folder_item_new(folder, name, NULL);
 184         if (item == NULL) {
 185                 return NULL;
 186         }
 187         item->folder = folder;
 188         folder->node = item->node = g_node_new(item);
 189         folder->data = NULL;
 190
 191         return folder;
 192 }
 193
 194 void folder_init(Folder *folder, const gchar *name)
 195 {
 196         cm_return_if_fail(folder != NULL);
 197
 198         folder_set_name(folder, name);
 199
 200         /* Init folder data */
 201         folder->account = NULL;
 202         folder->sort = 0;
 203         folder->inbox = NULL;
 204         folder->outbox = NULL;
 205         folder->draft = NULL;
 206         folder->queue = NULL;
 207         folder->trash = NULL;
 208 }
 209
 210 static void reset_parent_type(FolderItem *item, gpointer data) {
 211         item->parent_stype = -1;
 212 }
 213
 214 void folder_item_change_type(FolderItem *item, SpecialFolderItemType newtype)
 215 {
 216         Folder *folder = NULL;
 217         FolderUpdateData hookdata;
 218
 219         if (item == NULL)
 220                 return;
 221
 222         folder = item->folder;
 223         /* unset previous root of newtype */
 224         switch(newtype) {
 225         case F_INBOX:
 226                 folder_item_change_type(folder->inbox, F_NORMAL);
 227                 folder->inbox = item;
 228                 break;
 229         case F_OUTBOX:
 230                 folder_item_change_type(folder->outbox, F_NORMAL);
 231                 folder->outbox = item;
 232                 break;
 233         case F_QUEUE:
 234                 folder_item_change_type(folder->queue, F_NORMAL);
 235                 folder->queue = item;
 236                 break;
 237         case F_DRAFT:
 238                 folder_item_change_type(folder->draft, F_NORMAL);
 239                 folder->draft = item;
 240                 break;
 241         case F_TRASH:
 242                 folder_item_change_type(folder->trash, F_NORMAL);
 243                 folder->trash = item;
 244                 break;
 245         case F_NORMAL:
 246         default:
 247                 break;
 248         }
 249         /* set new type for current folder and sons */
 250         item->stype = newtype;
 251         folder_func_to_all_folders(reset_parent_type, NULL);
 252
 253         hookdata.folder = folder;
 254         hookdata.update_flags = FOLDER_TREE_CHANGED;
 255         hookdata.item = NULL;
 256         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 257 }
 258
 259 void folder_destroy(Folder *folder)
 260 {
 261         cm_return_if_fail(folder != NULL);
 262         cm_return_if_fail(folder->klass->destroy_folder != NULL);
 263
 264         folder_remove(folder);
 265
 266         folder_tree_destroy(folder);
 267
 268         folder->klass->destroy_folder(folder);
 269
 270         g_free(folder->name);
 271         g_free(folder);
 272 }
 273
 274 void folder_set_xml(Folder *folder, XMLTag *tag)
 275 {
 276         GList *cur;
 277         FolderItem *rootitem = NULL;
 278
 279         if ((folder->node != NULL) && (folder->node->data != NULL))
 280                 rootitem = (FolderItem *) folder->node->data;
 281
 282         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 283                 XMLAttr *attr = (XMLAttr *) cur->data;
 284
 285                 if (!attr || !attr->name || !attr->value) continue;
 286                 if (!strcmp(attr->name, "name")) {
 287                         g_free(folder->name);
 288                         folder->name = g_strdup(attr->value);
 289                         if (rootitem != NULL) {
 290                                 g_free(rootitem->name);
 291                                 rootitem->name = g_strdup(attr->value);
 292                         }
 293                 } else if (!strcmp(attr->name, "account_id")) {
 294                         PrefsAccount *account;
 295
 296                         account = account_find_from_id(atoi(attr->value));
 297                         if (!account)
 298                                 g_warning("account_id: %s not found\n", attr->value);
 299                         else {
 300                                 folder->account = account;
 301                                 account->folder = folder;
 302                         }
 303                 } else if (!strcmp(attr->name, "collapsed")) {
 304                         if (rootitem != NULL)
 305                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 306                 } else if (!strcmp(attr->name, "sort")) {
 307                         folder->sort = atoi(attr->value);
 308                 }
 309         }
 310 }
 311
 312 XMLTag *folder_get_xml(Folder *folder)
 313 {
 314         XMLTag *tag;
 315
 316         tag = xml_tag_new("folder");
 317
 318         if (folder->name)
 319                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
 320         if (folder->account)
 321                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
 322         if (folder->node && folder->node->data) {
 323                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 324
 325                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
 326         }
 327         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
 328
 329         return tag;
 330 }
 331
 332 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 333 {
 334         FolderItem *item = NULL;
 335
 336         cm_return_val_if_fail(folder != NULL, NULL);
 337
 338         if (folder->klass->item_new) {
 339                 item = folder->klass->item_new(folder);
 340         } else {
 341                 item = g_new0(FolderItem, 1);
 342         }
 343
 344         cm_return_val_if_fail(item != NULL, NULL);
 345
 346         item->stype = F_NORMAL;
 347         item->name = g_strdup(name);
 348         item->path = g_strdup(path);
 349         item->mtime = 0;
 350         item->new_msgs = 0;
 351         item->unread_msgs = 0;
 352         item->unreadmarked_msgs = 0;
 353         item->marked_msgs = 0;
 354         item->total_msgs = 0;
 355         item->replied_msgs = 0;
 356         item->forwarded_msgs = 0;
 357         item->locked_msgs = 0;
 358         item->ignored_msgs = 0;
 359         item->watched_msgs = 0;
 360         item->order = 0;
 361         item->last_num = -1;
 362         item->cache = NULL;
 363         item->no_sub = FALSE;
 364         item->no_select = FALSE;
 365         item->collapsed = FALSE;
 366         item->thread_collapsed = FALSE;
 367         item->threaded  = TRUE;
 368         item->ret_rcpt  = FALSE;
 369         item->opened    = FALSE;
 370         item->node = g_node_new(item);
 371         item->folder = NULL;
 372         item->account = NULL;
 373         item->apply_sub = FALSE;
 374         item->mark_queue = NULL;
 375         item->data = NULL;
 376         item->parent_stype = -1;
 377
 378         item->sort_key = SORT_BY_DATE;
 379         item->sort_type = SORT_ASCENDING;
 380
 381         item->prefs = folder_item_prefs_new();
 382
 383         return item;
 384 }
 385
 386 void folder_item_append(FolderItem *parent, FolderItem *item)
 387 {
 388         cm_return_if_fail(parent != NULL);
 389         cm_return_if_fail(parent->folder != NULL);
 390         cm_return_if_fail(parent->node != NULL);
 391         cm_return_if_fail(item != NULL);
 392
 393         item->folder = parent->folder;
 394         g_node_append(parent->node, item->node);
 395 }
 396
 397 void folder_item_remove(FolderItem *item)
 398 {
 399         GNode *node, *start_node;
 400         FolderUpdateData hookdata;
 401         gchar *tags_file = NULL;
 402
 403         cm_return_if_fail(item != NULL);
 404         cm_return_if_fail(item->folder != NULL);
 405         cm_return_if_fail(item->folder->node != NULL);
 406
 407         start_node = node = item->node;
 408
 409         node = item->folder->node;
 410
 411         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 412         node = node->children;
 413
 414         /* remove my children */
 415         while (node != NULL) {
 416                 if (node && node->data) {
 417                         FolderItem *sub_item = (FolderItem*) node->data;
 418                         node = node->next;
 419                         folder_item_remove(sub_item);
 420                 }
 421         }
 422
 423         /* remove myself */
 424         if (item->cache != NULL) {
 425                 msgcache_destroy(item->cache);
 426                 item->cache = NULL;
 427         }
 428         tags_file = folder_item_get_tags_file(item);
 429         if (tags_file)
 430                 claws_unlink(tags_file);
 431         g_free(tags_file);
 432
 433         hookdata.folder = item->folder;
 434         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 435         hookdata.item = item;
 436         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 437
 438         node = start_node;
 439
 440         if (item->folder->node == node)
 441                 item->folder->node = NULL;
 442
 443         folder_item_destroy(item);
 444
 445         g_node_destroy(node);
 446 }
 447
 448 void folder_item_remove_children(FolderItem *item)
 449 {
 450         GNode *node, *next;
 451
 452         cm_return_if_fail(item != NULL);
 453         cm_return_if_fail(item->folder != NULL);
 454         cm_return_if_fail(item->node != NULL);
 455
 456         node = item->node->children;
 457         while (node != NULL) {
 458                 next = node->next;
 459                 folder_item_remove(FOLDER_ITEM(node->data));
 460                 node = next;
 461         }
 462 }
 463
 464 void folder_item_destroy(FolderItem *item)
 465 {
 466         Folder *folder;
 467
 468         cm_return_if_fail(item != NULL);
 469
 470         folder = item->folder;
 471         if (folder) {
 472                 if (folder->inbox == item)
 473                         folder->inbox = NULL;
 474                 else if (folder->outbox == item)
 475                         folder->outbox = NULL;
 476                 else if (folder->draft == item)
 477                         folder->draft = NULL;
 478                 else if (folder->queue == item)
 479                         folder->queue = NULL;
 480                 else if (folder->trash == item)
 481                         folder->trash = NULL;
 482         }
 483
 484         if (item->cache)
 485                 folder_item_free_cache(item, TRUE);
 486         if (item->prefs)
 487                 folder_item_prefs_free(item->prefs);
 488         g_free(item->name);
 489         g_free(item->path);
 490
 491         if (item->folder != NULL) {
 492                 if(item->folder->klass->item_destroy) {
 493                         item->folder->klass->item_destroy(item->folder, item);
 494                 } else {
 495                         g_free(item);
 496                 }
 497         }
 498 }
 499
 500 FolderItem *folder_item_parent(FolderItem *item)
 501 {
 502         cm_return_val_if_fail(item != NULL, NULL);
 503         cm_return_val_if_fail(item->node != NULL, NULL);
 504
 505         if (item->node->parent == NULL)
 506                 return NULL;
 507         return (FolderItem *) item->node->parent->data;
 508 }
 509
 510 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 511 {
 512         GList *cur;
 513
 514         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 515                 XMLAttr *attr = (XMLAttr *) cur->data;
 516
 517                 if (!attr || !attr->name || !attr->value) continue;
 518                 if (!strcmp(attr->name, "type")) {
 519                         if (!g_ascii_strcasecmp(attr->value, "normal"))
 520                                 item->stype = F_NORMAL;
 521                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
 522                                 item->stype = F_INBOX;
 523                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
 524                                 item->stype = F_OUTBOX;
 525                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
 526                                 item->stype = F_DRAFT;
 527                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
 528                                 item->stype = F_QUEUE;
 529                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
 530                                 item->stype = F_TRASH;
 531                 } else if (!strcmp(attr->name, "name")) {
 532                         g_free(item->name);
 533                         item->name = g_strdup(attr->value);
 534                 } else if (!strcmp(attr->name, "path")) {
 535                         g_free(item->path);
 536                         item->path = g_strdup(attr->value);
 537                 } else if (!strcmp(attr->name, "mtime"))
 538                         item->mtime = strtoul(attr->value, NULL, 10);
 539                 else if (!strcmp(attr->name, "new"))
 540                         item->new_msgs = atoi(attr->value);
 541                 else if (!strcmp(attr->name, "unread"))
 542                         item->unread_msgs = atoi(attr->value);
 543                 else if (!strcmp(attr->name, "unreadmarked"))
 544                         item->unreadmarked_msgs = atoi(attr->value);
 545                 else if (!strcmp(attr->name, "marked"))
 546                         item->marked_msgs = atoi(attr->value);
 547                 else if (!strcmp(attr->name, "replied"))
 548                         item->replied_msgs = atoi(attr->value);
 549                 else if (!strcmp(attr->name, "forwarded"))
 550                         item->forwarded_msgs = atoi(attr->value);
 551                 else if (!strcmp(attr->name, "locked"))
 552                         item->locked_msgs = atoi(attr->value);
 553                 else if (!strcmp(attr->name, "ignored"))
 554                         item->ignored_msgs = atoi(attr->value);
 555                 else if (!strcmp(attr->name, "watched"))
 556                         item->watched_msgs = atoi(attr->value);
 557                 else if (!strcmp(attr->name, "order"))
 558                         item->order = atoi(attr->value);
 559                 else if (!strcmp(attr->name, "total"))
 560                         item->total_msgs = atoi(attr->value);
 561                 else if (!strcmp(attr->name, "no_sub"))
 562                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 563                 else if (!strcmp(attr->name, "no_select"))
 564                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 565                 else if (!strcmp(attr->name, "collapsed"))
 566                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 567                 else if (!strcmp(attr->name, "thread_collapsed"))
 568                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 569                 else if (!strcmp(attr->name, "threaded"))
 570                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 571                 else if (!strcmp(attr->name, "hidereadmsgs"))
 572                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 573                 else if (!strcmp(attr->name, "hidedelmsgs"))
 574                         item->hide_del_msgs =  *attr->value == '1' ? TRUE : FALSE;
 575                 else if (!strcmp(attr->name, "reqretrcpt"))
 576                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 577                 else if (!strcmp(attr->name, "sort_key")) {
 578                         if (!strcmp(attr->value, "none"))
 579                                 item->sort_key = SORT_BY_NONE;
 580                         else if (!strcmp(attr->value, "number"))
 581                                 item->sort_key = SORT_BY_NUMBER;
 582                         else if (!strcmp(attr->value, "size"))
 583                                 item->sort_key = SORT_BY_SIZE;
 584                         else if (!strcmp(attr->value, "date"))
 585                                 item->sort_key = SORT_BY_DATE;
 586                         else if (!strcmp(attr->value, "from"))
 587                                 item->sort_key = SORT_BY_FROM;
 588                         else if (!strcmp(attr->value, "subject"))
 589                                 item->sort_key = SORT_BY_SUBJECT;
 590                         else if (!strcmp(attr->value, "score"))
 591                                 item->sort_key = SORT_BY_SCORE;
 592                         else if (!strcmp(attr->value, "label"))
 593                                 item->sort_key = SORT_BY_LABEL;
 594                         else if (!strcmp(attr->value, "mark"))
 595                                 item->sort_key = SORT_BY_MARK;
 596                         else if (!strcmp(attr->value, "unread"))
 597                                 item->sort_key = SORT_BY_STATUS;
 598                         else if (!strcmp(attr->value, "mime"))
 599                                 item->sort_key = SORT_BY_MIME;
 600                         else if (!strcmp(attr->value, "to"))
 601                                 item->sort_key = SORT_BY_TO;
 602                         else if (!strcmp(attr->value, "locked"))
 603                                 item->sort_key = SORT_BY_LOCKED;
 604                         else if (!strcmp(attr->value, "tags"))
 605                                 item->sort_key = SORT_BY_TAGS;
 606                         else if (!strcmp(attr->value, "thread_date"))
 607                                 item->sort_key = SORT_BY_THREAD_DATE;
 608                 } else if (!strcmp(attr->name, "sort_type")) {
 609                         if (!strcmp(attr->value, "ascending"))
 610                                 item->sort_type = SORT_ASCENDING;
 611                         else
 612                                 item->sort_type = SORT_DESCENDING;
 613                 } else if (!strcmp(attr->name, "account_id")) {
 614                         PrefsAccount *account;
 615
 616                         account = account_find_from_id(atoi(attr->value));
 617                         if (!account)
 618                                 g_warning("account_id: %s not found\n", attr->value);
 619                         else
 620                                 item->account = account;
 621                 } else if (!strcmp(attr->name, "apply_sub")) {
 622                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 623                 } else if (!strcmp(attr->name, "last_seen")) {
 624                         if (!claws_crashed())
 625                                 item->last_seen = atoi(attr->value);
 626                         else
 627                                 item->last_seen = 0;
 628                 }
 629         }
 630 }
 631
 632 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 633 {
 634         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 635                                                  "draft", "queue", "trash"};
 636         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 637                                         "from", "subject", "score", "label",
 638                                         "mark", "unread", "mime", "to",
 639                                         "locked", "tags", "thread_date" };
 640         XMLTag *tag;
 641         gchar *value;
 642
 643         tag = xml_tag_new("folderitem");
 644
 645         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
 646         if (item->name)
 647                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
 648         if (item->path)
 649                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
 650         if (item->no_sub)
 651                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
 652         if (item->no_select)
 653                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
 654         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
 655         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
 656         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
 657         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
 658         xml_tag_add_attr(tag, xml_attr_new("hidedelmsgs", item->hide_del_msgs ? "1" : "0"));
 659         if (item->ret_rcpt)
 660                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
 661
 662         if (item->sort_key != SORT_BY_NONE) {
 663                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
 664                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 665         }
 666
 667         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
 668         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
 669         g_free(value);
 670         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
 671         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
 672         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
 673         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
 674         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
 675         xml_tag_add_attr(tag, xml_attr_new_int("replied", item->replied_msgs));
 676         xml_tag_add_attr(tag, xml_attr_new_int("forwarded", item->forwarded_msgs));
 677         xml_tag_add_attr(tag, xml_attr_new_int("locked", item->locked_msgs));
 678         xml_tag_add_attr(tag, xml_attr_new_int("ignore", item->ignored_msgs));
 679         xml_tag_add_attr(tag, xml_attr_new_int("watched", item->watched_msgs));
 680         xml_tag_add_attr(tag, xml_attr_new_int("order", item->order));
 681
 682         if (item->account)
 683                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
 684         if (item->apply_sub)
 685                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
 686
 687         xml_tag_add_attr(tag, xml_attr_new_int("last_seen", item->last_seen));
 688
 689         return tag;
 690 }
 691
 692 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 693 {
 694         cm_return_if_fail(folder != NULL);
 695
 696         folder->ui_func = func;
 697         folder->ui_func_data = data;
 698 }
 699
 700 void folder_set_name(Folder *folder, const gchar *name)
 701 {
 702         cm_return_if_fail(folder != NULL);
 703
 704         g_free(folder->name);
 705         folder->name = name ? g_strdup(name) : NULL;
 706         if (folder->node && folder->node->data) {
 707                 FolderItem *item = (FolderItem *)folder->node->data;
 708
 709                 g_free(item->name);
 710                 item->name = name ? g_strdup(name) : NULL;
 711         }
 712 }
 713
 714 void folder_set_sort(Folder *folder, guint sort)
 715 {
 716         cm_return_if_fail(folder != NULL);
 717
 718         if (folder->sort != sort) {
 719                 folder_remove(folder);
 720                 folder->sort = sort;
 721                 folder_add(folder);
 722         }
 723 }
 724
 725 static gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 726         FolderItem *item = (FolderItem *) node->data;
 727
 728         folder_item_destroy(item);
 729         return FALSE;
 730 }
 731
 732 void folder_tree_destroy(Folder *folder)
 733 {
 734         GNode *node;
 735
 736         cm_return_if_fail(folder != NULL);
 737
 738         node = folder->node;
 739
 740         prefs_filtering_clear_folder(folder);
 741
 742         if (node != NULL) {
 743                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 744                                 folder_tree_destroy_func, NULL);
 745                 g_node_destroy(node);
 746                 folder->node = NULL;
 747         }
 748 }
 749
 750 void folder_add(Folder *folder)
 751 {
 752         Folder *cur_folder;
 753         GList *cur;
 754         gint i;
 755         FolderUpdateData hookdata;
 756
 757         cm_return_if_fail(folder != NULL);
 758
 759         if ((FOLDER_TYPE(folder) == F_IMAP ||
 760              FOLDER_TYPE(folder) == F_NEWS) &&
 761             folder->account == NULL) {
 762                 return;
 763         }
 764
 765         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 766                 cur_folder = FOLDER(cur->data);
 767                 if (cur_folder->sort < folder->sort)
 768                         break;
 769         }
 770
 771         folder_list = g_list_insert(folder_list, folder, i);
 772
 773         hookdata.folder = folder;
 774         hookdata.update_flags = FOLDER_ADD_FOLDER;
 775         hookdata.item = NULL;
 776         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 777 }
 778
 779 void folder_remove(Folder *folder)
 780 {
 781         FolderUpdateData hookdata;
 782
 783         cm_return_if_fail(folder != NULL);
 784
 785         folder_list = g_list_remove(folder_list, folder);
 786
 787         hookdata.folder = folder;
 788         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
 789         hookdata.item = NULL;
 790         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 791 }
 792
 793 GList *folder_get_list(void)
 794 {
 795         return folder_list;
 796 }
 797
 798 gint folder_read_list(void)
 799 {
 800         GNode *node, *cur;
 801         XMLNode *xmlnode;
 802         gchar *path;
 803
 804         path = folder_get_list_path();
 805         if (!is_file_exist(path)) return -1;
 806         node = xml_parse_file(path);
 807         if (!node) return -1;
 808
 809         xmlnode = node->data;
 810         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 811                 g_warning("wrong folder list\n");
 812                 xml_free_tree(node);
 813                 return -1;
 814         }
 815
 816         cur = node->children;
 817         while (cur != NULL) {
 818                 Folder *folder;
 819
 820                 folder = folder_get_from_xml(cur);
 821                 if (folder != NULL)
 822                         folder_add(folder);
 823                 else
 824                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 825                                 (gpointer) xml_copy_tree(cur));
 826                 cur = cur->next;
 827         }
 828
 829         xml_free_tree(node);
 830         if (folder_list || folder_unloaded_list)
 831                 return 0;
 832         else
 833                 return -1;
 834 }
 835
 836 void folder_write_list(void)
 837 {
 838         GList *list;
 839         GSList *slist;
 840         Folder *folder;
 841         gchar *path;
 842         PrefFile *pfile;
 843         GNode *rootnode;
 844         XMLNode *xmlnode;
 845         XMLTag *tag;
 846
 847         path = folder_get_list_path();
 848         if ((pfile = prefs_write_open(path)) == NULL) return;
 849
 850         if (xml_file_put_xml_decl(pfile->fp) < 0) {
 851                 prefs_file_close_revert(pfile);
 852                 g_warning("failed to start write folder list.\n");
 853                 return;
 854         }
 855         tag = xml_tag_new("folderlist");
 856
 857         xmlnode = xml_node_new(tag, NULL);
 858
 859         rootnode = g_node_new(xmlnode);
 860
 861         for (list = folder_list; list != NULL; list = list->next) {
 862                 GNode *node;
 863
 864                 folder = list->data;
 865                 node = folder_get_xml_node(folder);
 866                 if (node != NULL)
 867                         g_node_append(rootnode, node);
 868         }
 869
 870         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 871                 GNode *node = (GNode *) slist->data;
 872
 873                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
 874         }
 875
 876         if (xml_write_tree(rootnode, pfile->fp) < 0) {
 877                 prefs_file_close_revert(pfile);
 878                 g_warning("failed to write folder list.\n");
 879         } else if (prefs_file_close(pfile) < 0) {
 880                 g_warning("failed to write folder list.\n");
 881         }
 882         xml_free_tree(rootnode);
 883 }
 884
 885 static gboolean folder_scan_tree_func(GNode *node, gpointer data)
 886 {
 887         GHashTable *pptable = (GHashTable *)data;
 888         FolderItem *item = (FolderItem *)node->data;
 889
 890         folder_item_restore_persist_prefs(item, pptable);
 891         folder_item_scan_full(item, FALSE);
 892
 893         return FALSE;
 894 }
 895
 896 void folder_scan_tree(Folder *folder, gboolean rebuild)
 897 {
 898         GHashTable *pptable;
 899         FolderUpdateData hookdata;
 900         Folder *old_folder = folder;
 901
 902         if (!folder->klass->scan_tree)
 903                 return;
 904
 905         pptable = folder_persist_prefs_new(folder);
 906
 907         if (rebuild)
 908                 folder_remove(folder);
 909
 910         if (folder->klass->scan_tree(folder) < 0) {
 911                 if (rebuild)
 912                         folder_add(old_folder);
 913                 return;
 914         } else if (rebuild)
 915                 folder_add(folder);
 916
 917         hookdata.folder = folder;
 918         hookdata.update_flags = FOLDER_TREE_CHANGED;
 919         hookdata.item = NULL;
 920         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 921
 922         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 923         folder_persist_prefs_free(pptable);
 924
 925         prefs_matcher_read_config();
 926
 927         folder_write_list();
 928 }
 929
 930 static gboolean folder_restore_prefs_func(GNode *node, gpointer data)
 931 {
 932         GHashTable *pptable = (GHashTable *)data;
 933         FolderItem *item = (FolderItem *)node->data;
 934
 935         folder_item_restore_persist_prefs(item, pptable);
 936
 937         return FALSE;
 938 }
 939
 940 void folder_fast_scan_tree(Folder *folder)
 941 {
 942         GHashTable *pptable;
 943         FolderUpdateData hookdata;
 944
 945         if (!folder->klass->scan_tree)
 946                 return;
 947
 948         pptable = folder_persist_prefs_new(folder);
 949
 950         if (folder->klass->scan_tree(folder) < 0) {
 951                 return;
 952         }
 953
 954         hookdata.folder = folder;
 955         hookdata.update_flags = FOLDER_TREE_CHANGED;
 956         hookdata.item = NULL;
 957         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 958
 959         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_restore_prefs_func, pptable);
 960         folder_persist_prefs_free(pptable);
 961
 962         prefs_matcher_read_config();
 963
 964         folder_write_list();
 965 }
 966
 967 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 968 {
 969         FolderItem *new_item;
 970
 971         cm_return_val_if_fail(parent != NULL, NULL);
 972
 973         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 974         if (new_item) {
 975                 FolderUpdateData hookdata;
 976
 977                 new_item->cache = msgcache_new();
 978                 new_item->cache_dirty = TRUE;
 979                 new_item->mark_dirty = TRUE;
 980                 new_item->tags_dirty = TRUE;
 981
 982                 hookdata.folder = new_item->folder;
 983                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
 984                 hookdata.item = new_item;
 985                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 986         }
 987
 988         return new_item;
 989 }
 990
 991 gint folder_item_rename(FolderItem *item, gchar *newname)
 992 {
 993         gint retval;
 994
 995         cm_return_val_if_fail(item != NULL, -1);
 996         cm_return_val_if_fail(newname != NULL, -1);
 997
 998         retval = item->folder->klass->rename_folder(item->folder, item, newname);
 999
1000         if (retval >= 0) {
1001                 FolderItemUpdateData hookdata;
1002                 FolderUpdateData hookdata2;
1003
1004                 hookdata.item = item;
1005                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
1006                 hookdata.msg = NULL;
1007                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
1008
1009                 hookdata2.folder = item->folder;
1010                 hookdata2.item = item;
1011                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
1012                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
1013         }
1014
1015         return retval;
1016 }
1017
1018 struct TotalMsgCount
1019 {
1020         guint new_msgs;
1021         guint unread_msgs;
1022         guint unreadmarked_msgs;
1023         guint marked_msgs;
1024         guint total_msgs;
1025         guint replied_msgs;
1026         guint forwarded_msgs;
1027         guint locked_msgs;
1028         guint ignored_msgs;
1029         guint watched_msgs;
1030 };
1031
1032 struct FuncToAllFoldersData
1033 {
1034         FolderItemFunc  function;
1035         gpointer        data;
1036 };
1037
1038 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
1039 {
1040         FolderItem *item;
1041         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
1042
1043         cm_return_val_if_fail(node->data != NULL, FALSE);
1044
1045         item = FOLDER_ITEM(node->data);
1046         cm_return_val_if_fail(item != NULL, FALSE);
1047
1048         function_data->function(item, function_data->data);
1049
1050         return FALSE;
1051 }
1052
1053 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
1054 {
1055         GList *list;
1056         Folder *folder;
1057         struct FuncToAllFoldersData function_data;
1058
1059         function_data.function = function;
1060         function_data.data = data;
1061
1062         for (list = folder_list; list != NULL; list = list->next) {
1063                 folder = FOLDER(list->data);
1064                 if (folder->node)
1065                         g_node_traverse(folder->node, G_PRE_ORDER,
1066                                         G_TRAVERSE_ALL, -1,
1067                                         folder_func_to_all_folders_func,
1068                                         &function_data);
1069         }
1070 }
1071
1072 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
1073 {
1074         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
1075
1076         count->new_msgs += item->new_msgs;
1077         count->unread_msgs += item->unread_msgs;
1078         count->unreadmarked_msgs += item->unreadmarked_msgs;
1079         count->marked_msgs += item->marked_msgs;
1080         count->total_msgs += item->total_msgs;
1081         count->replied_msgs += item->replied_msgs;
1082         count->forwarded_msgs += item->forwarded_msgs;
1083         count->locked_msgs += item->locked_msgs;
1084         count->ignored_msgs += item->ignored_msgs;
1085         count->watched_msgs += item->watched_msgs;
1086 }
1087
1088 struct TotalMsgStatus
1089 {
1090         guint new;
1091         guint unread;
1092         guint total;
1093         GString *str;
1094 };
1095
1096 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
1097 {
1098         FolderItem *item;
1099         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
1100         gchar *id;
1101
1102         cm_return_val_if_fail(node->data != NULL, FALSE);
1103
1104         item = FOLDER_ITEM(node->data);
1105
1106         if (!item->path) return FALSE;
1107
1108         status->new += item->new_msgs;
1109         status->unread += item->unread_msgs;
1110         status->total += item->total_msgs;
1111
1112         if (status->str) {
1113                 id = folder_item_get_identifier(item);
1114                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
1115                                   item->new_msgs, item->unread_msgs,
1116                                   item->total_msgs, id);
1117                 g_free(id);
1118         }
1119
1120         return FALSE;
1121  }
1122
1123 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
1124                                        guint *total)
1125 {
1126         GList *list;
1127         Folder *folder;
1128         struct TotalMsgStatus status;
1129
1130         status.new = status.unread = status.total = 0;
1131         status.str = str;
1132
1133         debug_print("Counting total number of messages...\n");
1134
1135         for (list = folder_list; list != NULL; list = list->next) {
1136                 folder = FOLDER(list->data);
1137                 if (folder->node)
1138                         g_node_traverse(folder->node, G_PRE_ORDER,
1139                                         G_TRAVERSE_ALL, -1,
1140                                         folder_get_status_full_all_func,
1141                                         &status);
1142         }
1143
1144         *new = status.new;
1145         *unread = status.unread;
1146         *total = status.total;
1147 }
1148
1149 gchar *folder_get_status(GPtrArray *folders, gboolean full)
1150 {
1151         guint new, unread, total;
1152         GString *str;
1153         gint i;
1154         gchar *ret;
1155
1156         new = unread = total = 0;
1157
1158         str = g_string_new(NULL);
1159
1160         if (folders) {
1161                 for (i = 0; i < folders->len; i++) {
1162                         FolderItem *item;
1163
1164                         item = g_ptr_array_index(folders, i);
1165                         new += item->new_msgs;
1166                         unread += item->unread_msgs;
1167                         total += item->total_msgs;
1168
1169                         if (full) {
1170                                 gchar *id;
1171
1172                                 id = folder_item_get_identifier(item);
1173                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1174                                                   item->new_msgs, item->unread_msgs,
1175                                                   item->total_msgs, id);
1176                                 g_free(id);
1177                         }
1178                 }
1179         } else {
1180                 folder_get_status_full_all(full ? str : NULL,
1181                                            &new, &unread, &total);
1182         }
1183
1184         if (full)
1185                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1186         else
1187                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1188
1189         ret = str->str;
1190         g_string_free(str, FALSE);
1191
1192         return ret;
1193 }
1194
1195 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs,
1196                              guint *unreadmarked_msgs, guint *marked_msgs,
1197                              guint *total_msgs, guint *replied_msgs,
1198                              guint *forwarded_msgs, guint *locked_msgs,
1199                              guint *ignored_msgs, guint *watched_msgs)
1200 {
1201         struct TotalMsgCount count;
1202
1203         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = 0;
1204         count.total_msgs = count.replied_msgs = count.forwarded_msgs = 0;
1205         count.locked_msgs = count.ignored_msgs = count.watched_msgs = 0;
1206         count.marked_msgs = 0;
1207
1208         debug_print("Counting total number of messages...\n");
1209
1210         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1211
1212         *new_msgs = count.new_msgs;
1213         *unread_msgs = count.unread_msgs;
1214         *unreadmarked_msgs = count.unreadmarked_msgs;
1215         *marked_msgs = count.marked_msgs;
1216         *total_msgs = count.total_msgs;
1217         *replied_msgs = count.replied_msgs;
1218         *forwarded_msgs = count.forwarded_msgs;
1219         *locked_msgs = count.locked_msgs;
1220         *ignored_msgs = count.ignored_msgs;
1221         *watched_msgs = count.watched_msgs;
1222 }
1223
1224 Folder *folder_find_from_path(const gchar *path)
1225 {
1226         GList *list;
1227         Folder *folder;
1228
1229         for (list = folder_list; list != NULL; list = list->next) {
1230                 folder = list->data;
1231                 if ((FOLDER_TYPE(folder) == F_MH ||
1232                      FOLDER_TYPE(folder) == F_MBOX) &&
1233                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1234                         return folder;
1235         }
1236
1237         return NULL;
1238 }
1239
1240 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1241 {
1242         GList *list;
1243         Folder *folder;
1244
1245         for (list = folder_list; list != NULL; list = list->next) {
1246                 folder = list->data;
1247                 if (folder->klass == klass &&
1248                     strcmp2(name, folder->name) == 0)
1249                         return folder;
1250         }
1251
1252         return NULL;
1253 }
1254
1255 static gboolean folder_item_find_func(GNode *node, gpointer data)
1256 {
1257         FolderItem *item = node->data;
1258         gpointer *d = data;
1259         const gchar *path = d[0];
1260
1261         if (path_cmp(path, item->path) != 0)
1262                 return FALSE;
1263
1264         d[1] = item;
1265
1266         return TRUE;
1267 }
1268
1269 FolderItem *folder_find_item_from_path(const gchar *path)
1270 {
1271         Folder *folder;
1272         gpointer d[2];
1273         GList *list = folder_get_list();
1274
1275         folder = list ? list->data:NULL;
1276
1277         cm_return_val_if_fail(folder != NULL, NULL);
1278
1279         d[0] = (gpointer)path;
1280         d[1] = NULL;
1281         while (d[1] == NULL && list) {
1282                 folder = FOLDER(list->data);
1283                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1284                         folder_item_find_func, d);
1285                 list = list->next;
1286         }
1287         return d[1];
1288 }
1289
1290 static gboolean folder_item_find_func_real_path(GNode *node, gpointer data)
1291 {
1292         FolderItem *item = node->data;
1293         gpointer *d = data;
1294         const gchar *path = d[0];
1295         gchar *tmp = folder_item_get_path(item);
1296         if (path_cmp(path, tmp) != 0) {
1297                 g_free(tmp);
1298                 return FALSE;
1299         }
1300         g_free(tmp);
1301         d[1] = item;
1302
1303         return TRUE;
1304 }
1305
1306 FolderItem *folder_find_item_from_real_path(const gchar *path)
1307 {
1308         Folder *folder;
1309         gpointer d[2];
1310         GList *list = folder_get_list();
1311
1312         folder = list ? list->data:NULL;
1313
1314         cm_return_val_if_fail(folder != NULL, NULL);
1315
1316         d[0] = (gpointer)path;
1317         d[1] = NULL;
1318         while (d[1] == NULL && list) {
1319                 folder = FOLDER(list->data);
1320                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1321                         folder_item_find_func_real_path, d);
1322                 list = list->next;
1323         }
1324         return d[1];
1325 }
1326
1327 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1328 {
1329         GNode *node;
1330         FolderItem *child;
1331
1332         for (node = item->node->children; node != NULL; node = node->next) {
1333                 child = FOLDER_ITEM(node->data);
1334                 if (strcmp2(child->name, name) == 0) {
1335                         return child;
1336                 }
1337         }
1338
1339         return NULL;
1340 }
1341
1342 FolderClass *folder_get_class_from_string(const gchar *str)
1343 {
1344         GSList *classlist;
1345
1346         classlist = folder_get_class_list();
1347         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1348                 FolderClass *class = (FolderClass *) classlist->data;
1349                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1350                         return class;
1351         }
1352
1353         return NULL;
1354 }
1355
1356 gchar *folder_get_identifier(Folder *folder)
1357 {
1358         gchar *type_str;
1359
1360         cm_return_val_if_fail(folder != NULL, NULL);
1361
1362         type_str = folder->klass->idstr;
1363         return g_strconcat("#", type_str, "/", folder->name, NULL);
1364 }
1365
1366 gchar *folder_item_get_identifier(FolderItem *item)
1367 {
1368         gchar *id = NULL;
1369         gchar *folder_id = NULL;
1370
1371         cm_return_val_if_fail(item != NULL, NULL);
1372
1373         if (item->path == NULL)
1374                 return NULL;
1375
1376         folder_id = folder_get_identifier(item->folder);
1377         id = g_strconcat(folder_id, "/", item->path, NULL);
1378         g_free(folder_id);
1379
1380         return id;
1381 }
1382
1383 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1384 {
1385         Folder *folder;
1386         gpointer d[2];
1387         gchar *str;
1388         gchar *p;
1389         gchar *name;
1390         gchar *path;
1391         FolderClass *class;
1392
1393         cm_return_val_if_fail(identifier != NULL, NULL);
1394
1395         if (*identifier != '#')
1396                 return folder_find_item_from_path(identifier);
1397
1398         Xstrdup_a(str, identifier, return NULL);
1399
1400         p = strchr(str, '/');
1401         if (!p)
1402                 return folder_find_item_from_path(identifier);
1403         *p = '\0';
1404         p++;
1405         class = folder_get_class_from_string(&str[1]);
1406         if (class == NULL)
1407                 return folder_find_item_from_path(identifier);
1408
1409         name = p;
1410         p = strchr(p, '/');
1411         if (!p)
1412                 return folder_find_item_from_path(identifier);
1413         *p = '\0';
1414         p++;
1415
1416         folder = folder_find_from_name(name, class);
1417         if (!folder)
1418                 return folder_find_item_from_path(identifier);
1419
1420         path = p;
1421
1422         d[0] = (gpointer)path;
1423         d[1] = NULL;
1424         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1425                         folder_item_find_func, d);
1426         return d[1];
1427 }
1428
1429 /** Returns the FolderItem from a given identifier
1430  *
1431  * The FolderItem is created if it doesn't already exist.
1432  * If creation failed, the function returns NULL.
1433  *
1434  * Identifiers are of the form #type/Mailbox/FolderA/FolderB/FolderC
1435  */
1436 FolderItem *folder_get_item_from_identifier(const gchar *identifier)
1437 {
1438         FolderItem *item, *last_parent;
1439         Folder *folder;
1440         gchar *p1, *p2, *str;
1441         size_t len;
1442         FolderClass *class;
1443         gboolean created_something = FALSE;
1444
1445         item = folder_find_item_from_identifier(identifier);
1446         if(item)
1447                 return item;
1448
1449         /* trivial sanity check: need at least # and two slashes */
1450         len = strlen(identifier);
1451         if(len < 3)
1452                 return NULL;
1453
1454         /* make sure identifier ends with a slash */
1455         if(identifier[len-1] == G_DIR_SEPARATOR) {
1456                 Xstrdup_a(str, identifier, return NULL);
1457         }
1458         else {
1459                 Xstrndup_a(str, identifier, len+1, return NULL);
1460                 str[len] = G_DIR_SEPARATOR;
1461         }
1462
1463         /* find folder class */
1464         p1 = strchr(str, G_DIR_SEPARATOR);
1465         if(!p1)
1466                 return NULL;
1467         *p1 = '\0';
1468         class = folder_get_class_from_string(&str[1]);
1469         if(!class)
1470                 return NULL;
1471         *p1 = G_DIR_SEPARATOR;
1472         ++p1;
1473
1474         /* find folder from class and name */
1475         p2 = strchr(p1, G_DIR_SEPARATOR);
1476         if(!p2)
1477                 return NULL;
1478         *p2 = '\0';
1479         folder = folder_find_from_name(p1, class);
1480         if(!folder)
1481                 return NULL;
1482         *p2 = G_DIR_SEPARATOR;
1483         ++p2;
1484         p1 = p2;
1485
1486         /* Now, move forward and make sure all sections in the path exist */
1487         last_parent = folder->node->data;
1488         while((p1 = strchr(p1, G_DIR_SEPARATOR)) != NULL) {
1489                 *p1 = '\0';
1490                 item = folder_find_item_from_identifier(str);
1491                 if(!item) {
1492                         item = folder_create_folder(last_parent, p2);
1493                         if(!item)
1494                                 return NULL;
1495                         debug_print("Created folder '%s'\n", str);
1496                         created_something = TRUE;
1497                         if(prefs_common.inherit_folder_props && (last_parent != item->folder->node->data)) {
1498                                 folder_item_prefs_copy_prefs(last_parent, item);
1499                         }
1500                 }
1501                 last_parent = item;
1502                 *p1 = G_DIR_SEPARATOR;
1503                 ++p1;
1504                 p2 = p1;
1505         }
1506
1507         if(created_something)
1508                 folder_write_list();
1509
1510         return item;
1511 }
1512
1513
1514 /**
1515  * Get a displayable name for a FolderItem
1516  *
1517  * \param item FolderItem for that a name should be created
1518  * \return Displayable name for item, returned string has to
1519  *         be freed
1520  */
1521 gchar *folder_item_get_name(FolderItem *item)
1522 {
1523         gchar *name = NULL;
1524
1525         cm_return_val_if_fail(item != NULL, g_strdup(""));
1526
1527         switch (item->stype) {
1528         case F_INBOX:
1529                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1530                                 item->name);
1531                 break;
1532         case F_OUTBOX:
1533                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1534                                 item->name);
1535                 break;
1536         case F_QUEUE:
1537                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1538                                 item->name);
1539                 break;
1540         case F_TRASH:
1541                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1542                                 item->name);
1543                 break;
1544         case F_DRAFT:
1545                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1546                                 item->name);
1547                 break;
1548         default:
1549                 break;
1550         }
1551
1552         if (name == NULL) {
1553                 /*
1554                  * should probably be done by a virtual function,
1555                  * the folder knows the ui string and how to abbrev
1556                 */
1557                 if (folder_item_parent(item) == NULL) {
1558                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1559                 } else {
1560                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1561                             item->path && !strcmp2(item->name, item->path))
1562                                 name = get_abbrev_newsgroup_name
1563                                         (item->path,
1564                                          prefs_common.ng_abbrev_len);
1565                         else
1566                                 name = g_strdup(item->name);
1567                 }
1568         }
1569
1570         if (name == NULL)
1571                 name = g_strdup("");
1572
1573         return name;
1574 }
1575
1576 gboolean folder_have_mailbox (void)
1577 {
1578         GList *cur;
1579         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1580                 Folder *folder = FOLDER(cur->data);
1581                 if (folder->inbox && folder->outbox)
1582                         return TRUE;
1583         }
1584         return FALSE;
1585 }
1586
1587 FolderItem *folder_get_default_inbox(void)
1588 {
1589         GList *flist;
1590
1591         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1592                 Folder * folder = FOLDER(flist->data);
1593
1594                 if (folder == NULL)
1595                         continue;
1596                 if (folder->inbox == NULL)
1597                         continue;
1598                 if (folder->klass->type == F_UNKNOWN)
1599                         continue;
1600
1601                 return folder->inbox;
1602         }
1603
1604         return NULL;
1605 }
1606
1607 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1608 {
1609         GList *flist;
1610
1611         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1612                 Folder * folder = FOLDER(flist->data);
1613
1614                 if (folder == NULL)
1615                         continue;
1616                 if (folder->inbox == NULL)
1617                         continue;
1618                 if (folder->klass->type != type)
1619                         continue;
1620
1621                 return folder->inbox;
1622         }
1623
1624         return NULL;
1625 }
1626
1627 FolderItem *folder_get_default_outbox(void)
1628 {
1629         GList *flist;
1630
1631         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1632                 Folder * folder = FOLDER(flist->data);
1633
1634                 if (folder == NULL)
1635                         continue;
1636                 if (folder->outbox == NULL)
1637                         continue;
1638                 if (folder->klass->type == F_UNKNOWN)
1639                         continue;
1640
1641                 return folder->outbox;
1642         }
1643
1644         return NULL;
1645 }
1646
1647 FolderItem *folder_get_default_outbox_for_class(FolderType type)
1648 {
1649         GList *flist;
1650
1651         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1652                 Folder * folder = FOLDER(flist->data);
1653
1654                 if (folder == NULL)
1655                         continue;
1656                 if (folder->outbox == NULL)
1657                         continue;
1658                 if (folder->klass->type != type)
1659                         continue;
1660
1661                 return folder->outbox;
1662         }
1663
1664         return NULL;
1665 }
1666
1667 FolderItem *folder_get_default_draft(void)
1668 {
1669         GList *flist;
1670
1671         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1672                 Folder * folder = FOLDER(flist->data);
1673
1674                 if (folder == NULL)
1675                         continue;
1676                 if (folder->draft == NULL)
1677                         continue;
1678                 if (folder->klass->type == F_UNKNOWN)
1679                         continue;
1680
1681                 return folder->draft;
1682         }
1683
1684         return NULL;
1685 }
1686
1687 FolderItem *folder_get_default_draft_for_class(FolderType type)
1688 {
1689         GList *flist;
1690
1691         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1692                 Folder * folder = FOLDER(flist->data);
1693
1694                 if (folder == NULL)
1695                         continue;
1696                 if (folder->draft == NULL)
1697                         continue;
1698                 if (folder->klass->type != type)
1699                         continue;
1700
1701                 return folder->draft;
1702         }
1703
1704         return NULL;
1705 }
1706
1707 FolderItem *folder_get_default_queue(void)
1708 {
1709         GList *flist;
1710
1711         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1712                 Folder * folder = FOLDER(flist->data);
1713
1714                 if (folder == NULL)
1715                         continue;
1716                 if (folder->queue == NULL)
1717                         continue;
1718                 if (folder->klass->type == F_UNKNOWN)
1719                         continue;
1720
1721                 return folder->queue;
1722         }
1723
1724         return NULL;
1725 }
1726
1727 FolderItem *folder_get_default_queue_for_class(FolderType type)
1728 {
1729         GList *flist;
1730
1731         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1732                 Folder * folder = FOLDER(flist->data);
1733
1734                 if (folder == NULL)
1735                         continue;
1736                 if (folder->queue == NULL)
1737                         continue;
1738                 if (folder->klass->type != type)
1739                         continue;
1740
1741                 return folder->queue;
1742         }
1743
1744         return NULL;
1745 }
1746
1747 FolderItem *folder_get_default_trash(void)
1748 {
1749         GList *flist;
1750
1751         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1752                 Folder * folder = FOLDER(flist->data);
1753
1754                 if (folder == NULL)
1755                         continue;
1756                 if (folder->trash == NULL)
1757                         continue;
1758                 if (folder->klass->type == F_UNKNOWN)
1759                         continue;
1760
1761                 return folder->trash;
1762         }
1763
1764         return NULL;
1765 }
1766
1767 FolderItem *folder_get_default_trash_for_class(FolderType type)
1768 {
1769         GList *flist;
1770
1771         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1772                 Folder * folder = FOLDER(flist->data);
1773
1774                 if (folder == NULL)
1775                         continue;
1776                 if (folder->trash == NULL)
1777                         continue;
1778                 if (folder->klass->type != type)
1779                         continue;
1780
1781                 return folder->trash;
1782         }
1783
1784         return NULL;
1785 }
1786
1787 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1788 {                                                               \
1789         if (!folder->member) {                                  \
1790                 item = folder_item_new(folder, dir, dir);       \
1791                 item->stype = type;                             \
1792                 folder_item_append(rootitem, item);             \
1793                 folder->member = item;                          \
1794         }                                                       \
1795 }
1796
1797 void folder_set_missing_folders(void)
1798 {
1799         Folder *folder;
1800         FolderItem *rootitem;
1801         FolderItem *item;
1802         GList *list;
1803
1804         for (list = folder_list; list != NULL; list = list->next) {
1805                 folder = list->data;
1806                 if (FOLDER_TYPE(folder) != F_MH) continue;
1807                 rootitem = FOLDER_ITEM(folder->node->data);
1808                 cm_return_if_fail(rootitem != NULL);
1809
1810                 if (folder->inbox && folder->outbox && folder->draft &&
1811                     folder->queue && folder->trash)
1812                         continue;
1813
1814                 if (folder->klass->create_tree(folder) < 0) {
1815                         g_warning("%s: can't create the folder tree.\n",
1816                                   LOCAL_FOLDER(folder)->rootpath);
1817                         continue;
1818                 }
1819
1820                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1821                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1822                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1823                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1824                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1825         }
1826 }
1827
1828 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1829 {
1830         FolderItem *item = node->data;
1831         PrefsAccount *account = data;
1832
1833         if (item->account == account)
1834                 item->account = NULL;
1835
1836         return FALSE;
1837 }
1838
1839 void folder_unref_account_all(PrefsAccount *account)
1840 {
1841         Folder *folder;
1842         GList *list;
1843
1844         if (!account) return;
1845
1846         for (list = folder_list; list != NULL; list = list->next) {
1847                 folder = list->data;
1848                 if (folder->account == account)
1849                         folder->account = NULL;
1850                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1851                                 folder_unref_account_func, account);
1852         }
1853 }
1854
1855 #undef CREATE_FOLDER_IF_NOT_EXIST
1856
1857 gchar *folder_item_get_path(FolderItem *item)
1858 {
1859         Folder *folder;
1860
1861         cm_return_val_if_fail(item != NULL, NULL);
1862         folder = item->folder;
1863         cm_return_val_if_fail(folder != NULL, NULL);
1864
1865         return folder->klass->item_get_path(folder, item);
1866 }
1867
1868 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1869 {
1870         MsgInfo *msginfo_a = (MsgInfo *) a;
1871         MsgInfo *msginfo_b = (MsgInfo *) b;
1872
1873         return (msginfo_a->msgnum - msginfo_b->msgnum);
1874 }
1875
1876 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1877 {
1878         guint gint_a = GPOINTER_TO_INT(a);
1879         guint gint_b = GPOINTER_TO_INT(b);
1880
1881         return (gint_a - gint_b);
1882 }
1883
1884 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1885 {
1886         GRelation *relation;
1887         gint ret = 0;
1888         GSList *cur;
1889
1890         if(msglist == NULL)
1891                 return 0;
1892         if(item->folder->klass->get_flags == NULL)
1893                 return 0;
1894         if (item->no_select)
1895                 return 0;
1896
1897         relation = g_relation_new(2);
1898         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1899         if ((ret = item->folder->klass->get_flags(
1900             item->folder, item, msglist, relation)) == 0) {
1901                 GTuples *tuples;
1902                 MsgInfo *msginfo;
1903                 MsgPermFlags permflags = 0;
1904                 gboolean skip;
1905
1906                 folder_item_update_freeze();
1907                 folder_item_set_batch(item, TRUE);
1908                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1909                         msginfo = (MsgInfo *) cur->data;
1910
1911                         tuples = g_relation_select(relation, msginfo, 0);
1912                         skip = tuples->len < 1;
1913                         if (!skip)
1914                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1915                         g_tuples_destroy(tuples);
1916                         if (skip)
1917                                 continue;
1918
1919                         if (msginfo->flags.perm_flags != permflags) {
1920                                 procmsg_msginfo_change_flags(msginfo,
1921                                         permflags & ~msginfo->flags.perm_flags, 0,
1922                                         ~permflags & msginfo->flags.perm_flags, 0);
1923                         }
1924                 }
1925                 folder_item_set_batch(item, FALSE);
1926                 folder_item_update_thaw();
1927         }
1928         g_relation_destroy(relation);
1929
1930         return ret;
1931 }
1932
1933 static gint folder_item_syncronize_flags(FolderItem *item)
1934 {
1935         MsgInfoList *msglist = NULL;
1936         GSList *cur;
1937         gint ret = 0;
1938
1939         cm_return_val_if_fail(item != NULL, -1);
1940         cm_return_val_if_fail(item->folder != NULL, -1);
1941         cm_return_val_if_fail(item->folder->klass != NULL, -1);
1942         if (item->no_select)
1943                 return -1;
1944
1945         item->scanning = ITEM_SCANNING_WITH_FLAGS;
1946
1947         if (item->cache == NULL)
1948                 folder_item_read_cache(item);
1949
1950         msglist = msgcache_get_msg_list(item->cache);
1951
1952         ret = syncronize_flags(item, msglist);
1953
1954         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
1955                 procmsg_msginfo_free((MsgInfo *) cur->data);
1956
1957         g_slist_free(msglist);
1958
1959         item->scanning = ITEM_NOT_SCANNING;
1960
1961         return ret;
1962 }
1963
1964 static void folder_item_process_open (FolderItem *item,
1965                                  void (*before_proc_func)(gpointer data),
1966                                  void (*after_proc_func)(gpointer data),
1967                                  gpointer data)
1968 {
1969         gchar *buf;
1970         if (item == NULL)
1971                 return;
1972         if((item->folder->klass->scan_required != NULL) &&
1973            (item->folder->klass->scan_required(item->folder, item))) {
1974                 folder_item_scan_full(item, TRUE);
1975         } else {
1976                 folder_item_syncronize_flags(item);
1977         }
1978
1979         /* Processing */
1980         if (item->prefs->enable_processing_when_opening) {
1981                 buf = g_strdup_printf(_("Processing (%s)...\n"),
1982                               item->path ? item->path : item->name);
1983                 g_free(buf);
1984
1985                 if (before_proc_func)
1986                         before_proc_func(data);
1987
1988                 folder_item_apply_processing(item);
1989
1990                 if (after_proc_func)
1991                         after_proc_func(data);
1992         }
1993         item->processing_pending = FALSE;
1994         return;
1995 }
1996
1997 gint folder_item_open(FolderItem *item)
1998 {
1999         START_TIMING("");
2000         if (item->no_select)
2001                 return -1;
2002
2003         if (item->scanning != ITEM_NOT_SCANNING) {
2004                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
2005                 return -2;
2006         }
2007
2008         item->processing_pending = TRUE;
2009         folder_item_process_open (item, NULL, NULL, NULL);
2010
2011         item->opened = TRUE;
2012         END_TIMING();
2013         return 0;
2014 }
2015
2016 gint folder_item_close(FolderItem *item)
2017 {
2018         GSList *mlist, *cur;
2019         Folder *folder;
2020
2021         cm_return_val_if_fail(item != NULL, -1);
2022
2023         if (item->no_select)
2024                 return -1;
2025
2026         if (item->new_msgs) {
2027                 folder_item_update_freeze();
2028                 mlist = folder_item_get_msg_list(item);
2029                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
2030                         MsgInfo * msginfo;
2031
2032                         msginfo = (MsgInfo *) cur->data;
2033                         if (MSG_IS_NEW(msginfo->flags))
2034                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
2035                         procmsg_msginfo_free(msginfo);
2036                 }
2037                 g_slist_free(mlist);
2038                 folder_item_update_thaw();
2039         }
2040
2041         folder_item_write_cache(item);
2042
2043         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
2044
2045         item->opened = FALSE;
2046         folder = item->folder;
2047
2048         if (folder->klass->close == NULL)
2049                 return 0;
2050
2051         return folder->klass->close(folder, item);
2052 }
2053
2054 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
2055 {
2056         MsgInfoList *msglist = NULL;
2057         Folder *folder = item->folder;
2058         if (item->no_select)
2059                 return NULL;
2060
2061         if (folder->klass->get_msginfos != NULL)
2062                 msglist = folder->klass->get_msginfos(folder, item, numlist);
2063         else {
2064                 MsgNumberList *elem;
2065
2066                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
2067                         MsgInfo *msginfo;
2068                         guint num;
2069
2070                         num = GPOINTER_TO_INT(elem->data);
2071                         msginfo = folder->klass->get_msginfo(folder, item, num);
2072                         if (msginfo != NULL)
2073                                 msglist = g_slist_prepend(msglist, msginfo);
2074                 }
2075         }
2076
2077         return msglist;
2078 }
2079
2080 static MsgInfo *get_msginfo(FolderItem *item, guint num)
2081 {
2082         MsgNumberList numlist;
2083         MsgInfoList *msglist;
2084         MsgInfo *msginfo = NULL;
2085
2086         numlist.data = GINT_TO_POINTER(num);
2087         numlist.next = NULL;
2088         msglist = get_msginfos(item, &numlist);
2089         if (msglist != NULL)
2090                 msginfo = procmsg_msginfo_new_ref(msglist->data);
2091         procmsg_msg_list_free(msglist);
2092
2093         return msginfo;
2094 }
2095
2096 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
2097 {
2098         Folder *folder;
2099         GSList *folder_list = NULL, *cache_list = NULL;
2100         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
2101         GSList *exists_list = NULL, *elem;
2102         GSList *newmsg_list = NULL;
2103         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
2104         guint markedcnt = 0, unreadmarkedcnt = 0;
2105         guint repliedcnt = 0, forwardedcnt = 0;
2106         guint lockedcnt = 0, ignoredcnt = 0, watchedcnt = 0;
2107
2108         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
2109         gboolean update_flags = 0, old_uids_valid = FALSE;
2110         GHashTable *subject_table = NULL;
2111
2112         cm_return_val_if_fail(item != NULL, -1);
2113         if (item->path == NULL) return -1;
2114
2115         folder = item->folder;
2116
2117         cm_return_val_if_fail(folder != NULL, -1);
2118         cm_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
2119
2120         item->scanning = ITEM_SCANNING_WITH_FLAGS;
2121
2122         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
2123
2124         /* Get list of messages for folder and cache */
2125         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
2126                 debug_print("Error fetching list of message numbers\n");
2127                 item->scanning = ITEM_NOT_SCANNING;
2128                 return(-1);
2129         }
2130
2131         if(prefs_common.thread_by_subject) {
2132                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
2133         }
2134
2135         if (old_uids_valid) {
2136                 if (!item->cache)
2137                         folder_item_read_cache(item);
2138                 cache_list = msgcache_get_msg_list(item->cache);
2139         } else {
2140                 if (item->cache)
2141                         msgcache_destroy(item->cache);
2142                 item->cache = msgcache_new();
2143                 item->cache_dirty = TRUE;
2144                 item->mark_dirty = TRUE;
2145                 item->tags_dirty = TRUE;
2146                 cache_list = NULL;
2147         }
2148
2149         /* Sort both lists */
2150         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
2151         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
2152
2153         cache_list_cur = cache_list;
2154         folder_list_cur = folder_list;
2155
2156         if (cache_list_cur != NULL) {
2157                 GSList *cache_list_last;
2158
2159                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2160                 cache_list_last = g_slist_last(cache_list);
2161                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
2162         } else {
2163                 cache_cur_num = G_MAXINT;
2164                 cache_max_num = 0;
2165         }
2166
2167         if (folder_list_cur != NULL) {
2168                 GSList *folder_list_last;
2169
2170                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2171                 folder_list_last = g_slist_last(folder_list);
2172                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
2173         } else {
2174                 folder_cur_num = G_MAXINT;
2175                 folder_max_num = 0;
2176         }
2177
2178         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
2179                 /*
2180                  *  Message only exists in the folder
2181                  *  Remember message for fetching
2182                  */
2183                 if (folder_cur_num < cache_cur_num) {
2184                         gboolean add = FALSE;
2185
2186                         switch(FOLDER_TYPE(folder)) {
2187                                 case F_NEWS:
2188                                         if (folder_cur_num < cache_max_num)
2189                                                 break;
2190
2191                                         if (folder->account->max_articles == 0) {
2192                                                 add = TRUE;
2193                                         }
2194
2195                                         if (folder_max_num <= folder->account->max_articles) {
2196                                                 add = TRUE;
2197                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
2198                                                 add = TRUE;
2199                                         }
2200                                         break;
2201                                 default:
2202                                         add = TRUE;
2203                                         break;
2204                         }
2205
2206                         if (add) {
2207                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
2208                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
2209                         }
2210
2211                         /* Move to next folder number */
2212                         if (folder_list_cur)
2213                                 folder_list_cur = folder_list_cur->next;
2214
2215                         if (folder_list_cur != NULL)
2216                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2217                         else
2218                                 folder_cur_num = G_MAXINT;
2219
2220                         continue;
2221                 }
2222
2223                 /*
2224                  *  Message only exists in the cache
2225                  *  Remove the message from the cache
2226                  */
2227                 if (cache_cur_num < folder_cur_num) {
2228                         msgcache_remove_msg(item->cache, cache_cur_num);
2229                         debug_print("Removed message %d from cache.\n", cache_cur_num);
2230
2231                         /* Move to next cache number */
2232                         if (cache_list_cur)
2233                                 cache_list_cur = cache_list_cur->next;
2234
2235                         if (cache_list_cur != NULL)
2236                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2237                         else
2238                                 cache_cur_num = G_MAXINT;
2239
2240                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2241
2242                         continue;
2243                 }
2244
2245                 /*
2246                  *  Message number exists in folder and cache!
2247                  *  Check if the message has been modified
2248                  */
2249                 if (cache_cur_num == folder_cur_num) {
2250                         MsgInfo *msginfo;
2251
2252                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
2253                         if (msginfo && folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
2254                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2255                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
2256                                 procmsg_msginfo_free(msginfo);
2257
2258                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
2259                         } else if (msginfo) {
2260                                 exists_list = g_slist_prepend(exists_list, msginfo);
2261
2262                                 if(prefs_common.thread_by_subject &&
2263                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2264                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2265                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2266                                 }
2267                         }
2268
2269                         /* Move to next folder and cache number */
2270                         if (cache_list_cur)
2271                                 cache_list_cur = cache_list_cur->next;
2272
2273                         if (folder_list_cur)
2274                                 folder_list_cur = folder_list_cur->next;
2275
2276                         if (cache_list_cur != NULL)
2277                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2278                         else
2279                                 cache_cur_num = G_MAXINT;
2280
2281                         if (folder_list_cur != NULL)
2282                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2283                         else
2284                                 folder_cur_num = G_MAXINT;
2285
2286                         continue;
2287                 }
2288         }
2289
2290         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
2291                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
2292
2293         g_slist_free(cache_list);
2294         g_slist_free(folder_list);
2295
2296         if (new_list != NULL) {
2297                 GSList *tmp_list = NULL;
2298                 newmsg_list = get_msginfos(item, new_list);
2299                 g_slist_free(new_list);
2300                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2301                 syncronize_flags(item, tmp_list);
2302                 g_slist_free(tmp_list);
2303         } else {
2304                 syncronize_flags(item, exists_list);
2305         }
2306
2307         folder_item_update_freeze();
2308
2309         item->scanning = ITEM_SCANNING;
2310
2311         if (newmsg_list != NULL) {
2312                 GSList *elem, *to_filter = NULL;
2313                 gboolean do_filter = (filtering == TRUE) &&
2314                                         (item->stype == F_INBOX) &&
2315                                         (item->folder->account != NULL) &&
2316                                         (item->folder->account->filter_on_recv);
2317
2318                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2319                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2320
2321                         msgcache_add_msg(item->cache, msginfo);
2322                         if (!do_filter) {
2323                                 exists_list = g_slist_prepend(exists_list, msginfo);
2324
2325                                 if(prefs_common.thread_by_subject &&
2326                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2327                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2328                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2329                                 }
2330                         }
2331                 }
2332
2333                 if (do_filter) {
2334                         GSList *unfiltered;
2335
2336                         folder_item_set_batch(item, TRUE);
2337                         procmsg_msglist_filter(newmsg_list, item->folder->account,
2338                                         &to_filter, &unfiltered,
2339                                         TRUE);
2340                         folder_item_set_batch(item, FALSE);
2341
2342                         filtering_move_and_copy_msgs(newmsg_list);
2343                         if (to_filter != NULL) {
2344                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2345                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2346                                         procmsg_msginfo_free(msginfo);
2347                                 }
2348                                 g_slist_free(to_filter);
2349                         }
2350                         if (unfiltered != NULL) {
2351                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2352                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2353                                         exists_list = g_slist_prepend(exists_list, msginfo);
2354
2355                                         if(prefs_common.thread_by_subject &&
2356                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2357                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2358                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2359                                         }
2360                                 }
2361                                 g_slist_free(unfiltered);
2362                         }
2363                         if (prefs_common.real_time_sync)
2364                                 folder_item_synchronise(item);
2365                 } else {
2366                         if (prefs_common.real_time_sync)
2367                                 folder_item_synchronise(item);
2368                 }
2369
2370                 g_slist_free(newmsg_list);
2371
2372                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2373         }
2374
2375         folder_item_set_batch(item, TRUE);
2376         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2377                 MsgInfo *msginfo, *parent_msginfo;
2378
2379                 msginfo = elem->data;
2380                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2381                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2382                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2383                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2384                 }
2385                 if (!MSG_IS_WATCH_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_WATCH_THREAD)) {
2386                         procmsg_msginfo_set_flags(msginfo, MSG_WATCH_THREAD, 0);
2387                 }
2388                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2389                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2390                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2391                 {
2392                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2393                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2394                                                 MSG_NEW | MSG_UNREAD, 0);
2395                         }
2396                 }
2397                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2398                      folder_has_parent_of_type(item, F_QUEUE)  ||
2399                      folder_has_parent_of_type(item, F_DRAFT)  ||
2400                      folder_has_parent_of_type(item, F_TRASH)) &&
2401                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2402                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2403                 if (MSG_IS_NEW(msginfo->flags))
2404                         newcnt++;
2405                 if (MSG_IS_UNREAD(msginfo->flags))
2406                         unreadcnt++;
2407                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2408                         unreadmarkedcnt++;
2409                 if (MSG_IS_MARKED(msginfo->flags))
2410                         markedcnt++;
2411                 if (MSG_IS_REPLIED(msginfo->flags))
2412                         repliedcnt++;
2413                 if (MSG_IS_FORWARDED(msginfo->flags))
2414                         forwardedcnt++;
2415                 if (MSG_IS_LOCKED(msginfo->flags))
2416                         lockedcnt++;
2417                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2418                         ignoredcnt++;
2419                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2420                         watchedcnt++;
2421
2422                 totalcnt++;
2423
2424                 procmsg_msginfo_free(msginfo);
2425         }
2426         folder_item_set_batch(item, FALSE);
2427         g_slist_free(exists_list);
2428
2429         if(prefs_common.thread_by_subject) {
2430                 g_hash_table_destroy(subject_table);
2431         }
2432
2433         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2434         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2435         ||  item->unreadmarked_msgs != unreadmarkedcnt
2436         ||  item->replied_msgs != repliedcnt || item->forwarded_msgs != forwardedcnt
2437         ||  item->locked_msgs != lockedcnt || item->ignored_msgs != ignoredcnt
2438         ||  item->watched_msgs != watchedcnt) {
2439                 update_flags |= F_ITEM_UPDATE_CONTENT;
2440         }
2441
2442         item->new_msgs = newcnt;
2443         item->unread_msgs = unreadcnt;
2444         item->total_msgs = totalcnt;
2445         item->unreadmarked_msgs = unreadmarkedcnt;
2446         item->marked_msgs = markedcnt;
2447         item->replied_msgs = repliedcnt;
2448         item->forwarded_msgs = forwardedcnt;
2449         item->locked_msgs = lockedcnt;
2450         item->ignored_msgs = ignoredcnt;
2451         item->watched_msgs = watchedcnt;
2452
2453         update_flags |= F_ITEM_UPDATE_MSGCNT;
2454
2455         folder_item_update(item, update_flags);
2456         folder_item_update_thaw();
2457
2458         item->scanning = ITEM_NOT_SCANNING;
2459
2460         return 0;
2461 }
2462
2463 gint folder_item_scan(FolderItem *item)
2464 {
2465         return folder_item_scan_full(item, TRUE);
2466 }
2467
2468 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2469 {
2470         gint *memusage = (gint *)data;
2471
2472         if (item->cache == NULL)
2473                 return;
2474
2475         *memusage += msgcache_get_memory_usage(item->cache);
2476 }
2477
2478 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2479 {
2480         FolderItem *fa = (FolderItem *)a;
2481         FolderItem *fb = (FolderItem *)b;
2482
2483         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2484 }
2485
2486 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2487 {
2488         GSList **folder_item_list = (GSList **)data;
2489         gint difftime, expiretime;
2490
2491         if (item->cache == NULL)
2492                 return;
2493
2494         if (item->opened > 0)
2495                 return;
2496
2497         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2498         expiretime = prefs_common.cache_min_keep_time * 60;
2499         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2500
2501         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2502                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2503         }
2504 }
2505
2506 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2507 {
2508         cm_return_val_if_fail(item != NULL, TRUE);
2509
2510         if (item->cache == NULL)
2511                 return TRUE;
2512
2513         if (item->opened > 0 && !force)
2514                 return FALSE;
2515
2516         folder_item_write_cache(item);
2517         msgcache_destroy(item->cache);
2518         item->cache = NULL;
2519         return TRUE;
2520 }
2521
2522 void folder_clean_cache_memory_force(void)
2523 {
2524         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2525         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2526
2527         prefs_common.cache_max_mem_usage = 0;
2528         prefs_common.cache_min_keep_time = 0;
2529
2530         folder_clean_cache_memory(NULL);
2531
2532         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2533         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2534 }
2535
2536 void folder_clean_cache_memory(FolderItem *protected_item)
2537 {
2538         gint memusage = 0;
2539
2540         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2541         debug_print("Total cache memory usage: %d\n", memusage);
2542
2543         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2544                 GSList *folder_item_list = NULL, *listitem;
2545
2546                 debug_print("Trying to free cache memory\n");
2547
2548                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2549                 listitem = folder_item_list;
2550                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2551                         FolderItem *item = (FolderItem *)(listitem->data);
2552                         gint cache_size = 0;
2553                         if (item == protected_item) {
2554                                 listitem = listitem->next;
2555                                 continue;
2556                         }
2557                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2558                         cache_size = msgcache_get_memory_usage(item->cache);
2559                         if (folder_item_free_cache(item, FALSE))
2560                                 memusage -= cache_size;
2561
2562                         listitem = listitem->next;
2563                 }
2564                 g_slist_free(folder_item_list);
2565         }
2566 }
2567
2568 static void folder_item_remove_cached_msg(FolderItem *item, MsgInfo *msginfo)
2569 {
2570         Folder *folder = item->folder;
2571
2572         cm_return_if_fail(folder != NULL);
2573
2574         if (folder->klass->remove_cached_msg == NULL)
2575                 return;
2576
2577         folder->klass->remove_cached_msg(folder, item, msginfo);
2578 }
2579
2580 static void folder_item_clean_local_files(FolderItem *item, gint days)
2581 {
2582         cm_return_if_fail(item != NULL);
2583         cm_return_if_fail(item->folder != NULL);
2584
2585         if (FOLDER_TYPE(item->folder) == F_IMAP ||
2586             FOLDER_TYPE(item->folder) == F_NEWS) {
2587                 GSList *msglist = folder_item_get_msg_list(item);
2588                 GSList *cur;
2589                 time_t t = time(NULL);
2590                 for (cur = msglist; cur; cur = cur->next) {
2591                         MsgInfo *msginfo = (MsgInfo *)cur->data;
2592                         gint age = (t - msginfo->date_t) / (60*60*24);
2593                         if (age > days)
2594                                 folder_item_remove_cached_msg(item, msginfo);
2595                 }
2596                 procmsg_msg_list_free(msglist);
2597         }
2598 }
2599
2600 static void folder_item_read_cache(FolderItem *item)
2601 {
2602         gchar *cache_file, *mark_file, *tags_file;
2603         START_TIMING("");
2604         cm_return_if_fail(item != NULL);
2605
2606         if (item->path != NULL) {
2607                 cache_file = folder_item_get_cache_file(item);
2608                 mark_file = folder_item_get_mark_file(item);
2609                 tags_file = folder_item_get_tags_file(item);
2610                 item->cache = msgcache_read_cache(item, cache_file);
2611                 item->cache_dirty = FALSE;
2612                 item->mark_dirty = FALSE;
2613                 item->tags_dirty = FALSE;
2614                 if (!item->cache) {
2615                         MsgInfoList *list, *cur;
2616                         guint newcnt = 0, unreadcnt = 0;
2617                         guint markedcnt = 0, unreadmarkedcnt = 0;
2618                         guint repliedcnt = 0, forwardedcnt = 0;
2619                         guint lockedcnt = 0, ignoredcnt = 0;
2620                         guint watchedcnt = 0;
2621                         MsgInfo *msginfo;
2622
2623                         item->cache = msgcache_new();
2624                         item->cache_dirty = TRUE;
2625                         item->mark_dirty = TRUE;
2626                         item->tags_dirty = TRUE;
2627                         folder_item_scan_full(item, TRUE);
2628
2629                         msgcache_read_mark(item->cache, mark_file);
2630
2631                         list = msgcache_get_msg_list(item->cache);
2632                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2633                                 msginfo = cur->data;
2634
2635                                 if (MSG_IS_NEW(msginfo->flags))
2636                                         newcnt++;
2637                                 if (MSG_IS_UNREAD(msginfo->flags))
2638                                         unreadcnt++;
2639                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2640                                         unreadmarkedcnt++;
2641                                 if (MSG_IS_MARKED(msginfo->flags))
2642                                         markedcnt++;
2643                                 if (MSG_IS_REPLIED(msginfo->flags))
2644                                         repliedcnt++;
2645                                 if (MSG_IS_FORWARDED(msginfo->flags))
2646                                         forwardedcnt++;
2647                                 if (MSG_IS_LOCKED(msginfo->flags))
2648                                         lockedcnt++;
2649                                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2650                                         ignoredcnt++;
2651                                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2652                                         watchedcnt++;
2653                                 procmsg_msginfo_unset_flags(msginfo, MSG_FULLY_CACHED, 0);
2654                         }
2655                         item->new_msgs = newcnt;
2656                         item->unread_msgs = unreadcnt;
2657                         item->unreadmarked_msgs = unreadmarkedcnt;
2658                         item->marked_msgs = markedcnt;
2659                         item->replied_msgs = repliedcnt;
2660                         item->forwarded_msgs = forwardedcnt;
2661                         item->locked_msgs = lockedcnt;
2662                         item->ignored_msgs = ignoredcnt;
2663                         item->watched_msgs = watchedcnt;
2664                         procmsg_msg_list_free(list);
2665                 } else
2666                         msgcache_read_mark(item->cache, mark_file);
2667
2668                 msgcache_read_tags(item->cache, tags_file);
2669
2670                 g_free(cache_file);
2671                 g_free(mark_file);
2672                 g_free(tags_file);
2673         } else {
2674                 item->cache = msgcache_new();
2675                 item->cache_dirty = TRUE;
2676                 item->mark_dirty = TRUE;
2677                 item->tags_dirty = TRUE;
2678         }
2679
2680         END_TIMING();
2681         folder_clean_cache_memory(item);
2682 }
2683
2684 void folder_item_write_cache(FolderItem *item)
2685 {
2686         gchar *cache_file = NULL, *mark_file = NULL, *tags_file = NULL;
2687         FolderItemPrefs *prefs;
2688         gint filemode = 0;
2689         gchar *id;
2690         time_t last_mtime = (time_t)0;
2691         gboolean need_scan = FALSE;
2692
2693         if (!item || !item->path || !item->cache)
2694                 return;
2695
2696         last_mtime = item->mtime;
2697         if (item->folder->klass->set_mtime) {
2698                 if (item->folder->klass->scan_required)
2699                         need_scan = item->folder->klass->scan_required(item->folder, item);
2700                 else
2701                         need_scan = TRUE;
2702         }
2703
2704         id = folder_item_get_identifier(item);
2705         debug_print("Save cache for folder %s\n", id);
2706         g_free(id);
2707
2708         if (item->cache_dirty)
2709                 cache_file = folder_item_get_cache_file(item);
2710         if (item->cache_dirty || item->mark_dirty)
2711                 mark_file = folder_item_get_mark_file(item);
2712         if (item->cache_dirty || item->tags_dirty)
2713                 tags_file = folder_item_get_tags_file(item);
2714         if (msgcache_write(cache_file, mark_file, tags_file, item->cache) < 0) {
2715                 prefs = item->prefs;
2716                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2717                         /* for cache file */
2718                         filemode = prefs->folder_chmod;
2719                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2720                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2721                         chmod(cache_file, filemode);
2722                 }
2723         } else {
2724                 item->cache_dirty = FALSE;
2725                 item->mark_dirty = FALSE;
2726                 item->tags_dirty = FALSE;
2727         }
2728
2729         if (!need_scan && item->folder->klass->set_mtime) {
2730                 if (item->mtime == last_mtime) {
2731                         item->folder->klass->set_mtime(item->folder, item);
2732                 }
2733         }
2734
2735         g_free(cache_file);
2736         g_free(mark_file);
2737         g_free(tags_file);
2738 }
2739
2740 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2741 {
2742         Folder *folder;
2743         MsgInfo *msginfo = NULL;
2744
2745         cm_return_val_if_fail(item != NULL, NULL);
2746         if (item->no_select)
2747                 return NULL;
2748         folder = item->folder;
2749         if (!item->cache)
2750                 folder_item_read_cache(item);
2751
2752         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2753                 return msginfo;
2754
2755         msginfo = get_msginfo(item, num);
2756         if (msginfo != NULL) {
2757                 msgcache_add_msg(item->cache, msginfo);
2758                 return msginfo;
2759         }
2760
2761         return NULL;
2762 }
2763
2764 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2765 {
2766         Folder *folder;
2767         MsgInfo *msginfo;
2768
2769         cm_return_val_if_fail(item != NULL, NULL);
2770         cm_return_val_if_fail(msgid != NULL, NULL);
2771         if (item->no_select)
2772                 return FALSE;
2773
2774         folder = item->folder;
2775         if (!item->cache)
2776                 folder_item_read_cache(item);
2777
2778         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2779                 return msginfo;
2780
2781         return NULL;
2782 }
2783
2784 GSList *folder_item_get_msg_list(FolderItem *item)
2785 {
2786         cm_return_val_if_fail(item != NULL, NULL);
2787         if (item->no_select)
2788                 return FALSE;
2789
2790         if (item->cache == 0)
2791                 folder_item_read_cache(item);
2792
2793         cm_return_val_if_fail(item->cache != NULL, NULL);
2794
2795         return msgcache_get_msg_list(item->cache);
2796 }
2797
2798 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2799 {
2800         MsgInfo *msginfo = data;
2801         MimeInfo *mimeinfo = node->data;
2802
2803         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2804          && (!mimeinfo->subtype || (strcmp(mimeinfo->subtype, "pgp-signature") &&
2805              strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2806              strcmp(mimeinfo->subtype, "pkcs7-signature")))) {
2807                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2808         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2809                  mimeinfo->type != MIMETYPE_TEXT &&
2810                  mimeinfo->type != MIMETYPE_MULTIPART) {
2811                 if (!mimeinfo->subtype
2812                 || (strcmp(mimeinfo->subtype, "pgp-signature") &&
2813                     strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2814                     strcmp(mimeinfo->subtype, "pkcs7-signature")))
2815                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2816         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2817                 (strcmp(mimeinfo->subtype, "pgp-signature") &&
2818                  strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2819                  strcmp(mimeinfo->subtype, "pkcs7-signature")) &&
2820                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2821                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2822                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2823         }
2824
2825         /* don't descend below top level message for signed and encrypted info */
2826         if (mimeinfo->type == MIMETYPE_MESSAGE)
2827                 return;
2828
2829         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2830                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2831         }
2832
2833         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2834                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2835         } else {
2836                 /* searching inside encrypted parts doesn't really make sense */
2837                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2838         }
2839 }
2840
2841 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2842 {
2843         Folder *folder;
2844         gchar *msgfile;
2845         MsgInfo *msginfo;
2846
2847         cm_return_val_if_fail(item != NULL, NULL);
2848
2849         folder = item->folder;
2850
2851         cm_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2852         if (item->no_select)
2853                 return NULL;
2854
2855         msgfile = folder->klass->fetch_msg(folder, item, num);
2856
2857         if (msgfile != NULL) {
2858                 msginfo = folder_item_get_msginfo(item, num);
2859                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2860                         MimeInfo *mimeinfo;
2861
2862                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2863                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2864                                 mimeinfo = procmime_scan_file(msgfile);
2865                         else
2866                                 mimeinfo = procmime_scan_queue_file(msgfile);
2867                         /* check for attachments */
2868                         if (mimeinfo != NULL) {
2869                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2870                                 procmime_mimeinfo_free_all(mimeinfo);
2871
2872                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2873                         }
2874                 }
2875                 procmsg_msginfo_free(msginfo);
2876         }
2877
2878         return msgfile;
2879 }
2880
2881 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2882                                   gboolean body)
2883 {
2884         Folder *folder;
2885         gchar *msgfile;
2886         MsgInfo *msginfo;
2887
2888         cm_return_val_if_fail(item != NULL, NULL);
2889         if (item->no_select)
2890                 return NULL;
2891
2892         folder = item->folder;
2893
2894         if (folder->klass->fetch_msg_full == NULL)
2895                 return folder_item_fetch_msg(item, num);
2896
2897         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2898                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2899                                                 TRUE, TRUE);
2900         else
2901                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2902                                                 headers, body);
2903
2904         if (msgfile != NULL) {
2905                 msginfo = folder_item_get_msginfo(item, num);
2906                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2907                         MimeInfo *mimeinfo;
2908
2909                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2910                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2911                                 mimeinfo = procmime_scan_file(msgfile);
2912                         else
2913                                 mimeinfo = procmime_scan_queue_file(msgfile);
2914                         /* check for attachments */
2915                         if (mimeinfo != NULL) {
2916                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2917                                 procmime_mimeinfo_free_all(mimeinfo);
2918
2919                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2920                         }
2921                 }
2922                 procmsg_msginfo_free(msginfo);
2923         }
2924
2925         return msgfile;
2926 }
2927
2928
2929 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2930 {
2931         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2932                                        {NULL,           NULL, FALSE}};
2933         FILE *fp;
2934         MsgInfo *msginfo;
2935         gint msgnum = 0;
2936         gchar buf[BUFFSIZE];
2937
2938         if ((fp = g_fopen(file, "rb")) == NULL)
2939                 return 0;
2940
2941         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2942             (folder_has_parent_of_type(dest, F_DRAFT)))
2943                 while (fgets(buf, sizeof(buf), fp) != NULL) {
2944                         /* new way */
2945                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
2946                                 strlen("X-Claws-End-Special-Headers:"))) ||
2947                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
2948                                 strlen("X-Sylpheed-End-Special-Headers:"))))
2949                                 break;
2950                         /* old way */
2951                         if (buf[0] == '\r' || buf[0] == '\n') break;
2952                         /* from other mailers */
2953                         if (!strncmp(buf, "Date: ", 6)
2954                         ||  !strncmp(buf, "To: ", 4)
2955                         ||  !strncmp(buf, "From: ", 6)
2956                         ||  !strncmp(buf, "Subject: ", 9)) {
2957                                 rewind(fp);
2958                                 break;
2959                         }
2960                 }
2961
2962         procheader_get_header_fields(fp, hentry);
2963         debug_print("looking for %s\n", hentry[0].body);
2964         if (hentry[0].body) {
2965                 extract_parenthesis(hentry[0].body, '<', '>');
2966                 remove_space(hentry[0].body);
2967                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2968                         msgnum = msginfo->msgnum;
2969                         procmsg_msginfo_free(msginfo);
2970
2971                         debug_print("found message as uid %d\n", msgnum);
2972                 }
2973         }
2974
2975         g_free(hentry[0].body);
2976         hentry[0].body = NULL;
2977         fclose(fp);
2978
2979         return msgnum;
2980 }
2981
2982 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2983 {
2984         MsgPermFlags perm_flags = 0;
2985         MsgTmpFlags tmp_flags = 0;
2986
2987         /* create new flags */
2988         if (source != NULL) {
2989                 /* copy original flags */
2990                 perm_flags = source->flags.perm_flags;
2991                 tmp_flags = source->flags.tmp_flags;
2992         } else {
2993                 perm_flags = dest->flags.perm_flags;
2994                 tmp_flags = dest->flags.tmp_flags;
2995         }
2996
2997         /* remove new, unread and deleted in special folders */
2998         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
2999             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
3000             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
3001             folder_has_parent_of_type(dest->folder, F_TRASH))
3002                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
3003
3004         /* set ignore flag of ignored parent exists */
3005         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
3006                 perm_flags |= MSG_IGNORE_THREAD;
3007
3008         /* unset FULLY_CACHED flags */
3009         perm_flags &= ~MSG_FULLY_CACHED;
3010
3011         if (procmsg_msg_has_flagged_parent(dest, MSG_WATCH_THREAD))
3012                 perm_flags |= MSG_WATCH_THREAD;
3013
3014         /* Unset tmp flags that should not be copied */
3015         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
3016
3017         /* unset flags that are set but should not */
3018         /* and set new flags */
3019         procmsg_msginfo_change_flags(dest,
3020                                   ~dest->flags.perm_flags & perm_flags,
3021                                   ~dest->flags.tmp_flags  & tmp_flags,
3022                                    dest->flags.perm_flags & ~perm_flags,
3023                                    dest->flags.tmp_flags  & ~tmp_flags);
3024
3025         if (source && source->tags) {
3026                 g_slist_free(dest->tags);
3027                 dest->tags = g_slist_copy(source->tags);
3028                 folder_item_commit_tags(dest->folder, dest, dest->tags, NULL);
3029         }
3030 }
3031
3032 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
3033 {
3034         /* update folder stats */
3035         if (MSG_IS_NEW(newmsginfo->flags))
3036                 item->new_msgs++;
3037         if (MSG_IS_UNREAD(newmsginfo->flags))
3038                 item->unread_msgs++;
3039         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
3040                 item->unreadmarked_msgs++;
3041         if (MSG_IS_MARKED(newmsginfo->flags))
3042                 item->marked_msgs++;
3043         if (MSG_IS_REPLIED(newmsginfo->flags))
3044                 item->replied_msgs++;
3045         if (MSG_IS_FORWARDED(newmsginfo->flags))
3046                 item->forwarded_msgs++;
3047         if (MSG_IS_LOCKED(newmsginfo->flags))
3048                 item->locked_msgs++;
3049         if (MSG_IS_IGNORE_THREAD(newmsginfo->flags))
3050                 item->ignored_msgs++;
3051         if (MSG_IS_WATCH_THREAD(newmsginfo->flags))
3052                 item->watched_msgs++;
3053         item->total_msgs++;
3054
3055         folder_item_update_freeze();
3056
3057         if (!item->cache)
3058                 folder_item_read_cache(item);
3059
3060         msgcache_add_msg(item->cache, newmsginfo);
3061         copy_msginfo_flags(flagsource, newmsginfo);
3062         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
3063         folder_item_update_thaw();
3064 }
3065
3066 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
3067 {
3068         MsgInfoUpdate msginfo_update;
3069
3070         if (!item->cache)
3071                 folder_item_read_cache(item);
3072
3073         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
3074                 msginfo->folder->new_msgs--;
3075         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
3076                 msginfo->folder->unread_msgs--;
3077         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
3078                 msginfo->folder->unreadmarked_msgs--;
3079         if (MSG_IS_MARKED(msginfo->flags))
3080                 item->marked_msgs--;
3081         if (MSG_IS_REPLIED(msginfo->flags))
3082                 item->replied_msgs--;
3083         if (MSG_IS_FORWARDED(msginfo->flags))
3084                 item->forwarded_msgs--;
3085         if (MSG_IS_LOCKED(msginfo->flags))
3086                 item->locked_msgs--;
3087         if (MSG_IS_IGNORE_THREAD(msginfo->flags))
3088                 item->ignored_msgs--;
3089         if (MSG_IS_WATCH_THREAD(msginfo->flags))
3090                 item->watched_msgs--;
3091
3092         msginfo->folder->total_msgs--;
3093
3094         msginfo_update.msginfo = msginfo;
3095         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
3096         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
3097
3098         msgcache_remove_msg(item->cache, msginfo->msgnum);
3099         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
3100 }
3101
3102 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
3103                          MsgFlags *flags, gboolean remove_source)
3104 {
3105         GSList file_list;
3106         MsgFileInfo fileinfo;
3107
3108         cm_return_val_if_fail(dest != NULL, -1);
3109         cm_return_val_if_fail(file != NULL, -1);
3110
3111         fileinfo.msginfo = NULL;
3112         fileinfo.file = (gchar *)file;
3113         fileinfo.flags = flags;
3114         file_list.data = &fileinfo;
3115         file_list.next = NULL;
3116
3117         return folder_item_add_msgs(dest, &file_list, remove_source);
3118 }
3119
3120 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
3121                           gboolean remove_source)
3122 {
3123         Folder *folder;
3124         gint ret, num, lastnum = -1;
3125         GSList *file_cur;
3126         GRelation *relation;
3127         MsgFileInfo *fileinfo = NULL;
3128         gboolean folderscan = FALSE;
3129
3130         cm_return_val_if_fail(dest != NULL, -1);
3131         cm_return_val_if_fail(file_list != NULL, -1);
3132         cm_return_val_if_fail(dest->folder != NULL, -1);
3133         if (dest->no_select)
3134                 return -1;
3135
3136         folder = dest->folder;
3137
3138         relation = g_relation_new(2);
3139         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3140
3141         if (folder->klass->add_msgs != NULL) {
3142                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
3143                 if (ret < 0) {
3144                         g_relation_destroy(relation);
3145                         return ret;
3146                 }
3147         } else {
3148                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3149                         fileinfo = (MsgFileInfo *) file_cur->data;
3150
3151                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
3152                         if (ret < 0) {
3153                                 g_relation_destroy(relation);
3154                                 return ret;
3155                         }
3156                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
3157                 }
3158         }
3159
3160         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3161                 GTuples *tuples;
3162
3163                 fileinfo = (MsgFileInfo *) file_cur->data;
3164                 tuples = g_relation_select(relation, fileinfo, 0);
3165                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3166                 g_tuples_destroy(tuples);
3167
3168                 if (num >= 0) {
3169                         MsgInfo *newmsginfo;
3170
3171                         if (num == 0) {
3172                                 if (!folderscan) {
3173                                         folder_item_scan_full(dest, FALSE);
3174                                         folderscan = TRUE;
3175                                 }
3176                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
3177                                 debug_print("got num %d\n", num);
3178                         }
3179
3180                         if (num > lastnum)
3181                                 lastnum = num;
3182
3183                         if (num >= 0 && remove_source) {
3184                                 if (claws_unlink(fileinfo->file) < 0)
3185                                         FILE_OP_ERROR(fileinfo->file, "unlink");
3186                         }
3187
3188                         if (num == 0)
3189                                 continue;
3190
3191                         if (!folderscan &&
3192                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
3193                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
3194                                 procmsg_msginfo_free(newmsginfo);
3195                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
3196                                 /* TODO: set default flags */
3197                                 procmsg_msginfo_free(newmsginfo);
3198                         }
3199                 }
3200         }
3201
3202         g_relation_destroy(relation);
3203
3204         return lastnum;
3205 }
3206
3207 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy)
3208 {
3209         GSList *mlist;
3210         FolderItem *new_item;
3211         FolderItem *next_item;
3212         GNode *srcnode;
3213         gchar *old_id, *new_id;
3214
3215         /* move messages */
3216         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
3217         new_item = folder_create_folder(dest, src->name);
3218         if (new_item == NULL) {
3219                 g_print("Can't create folder\n");
3220                 return NULL;
3221         }
3222
3223         if (new_item->folder == NULL)
3224                 new_item->folder = dest->folder;
3225
3226         /* move messages */
3227         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"),
3228                         src->name, new_item->path);
3229
3230         mlist = folder_item_get_msg_list(src);
3231
3232         if (mlist != NULL) {
3233                 if (copy)
3234                         folder_item_copy_msgs(new_item, mlist);
3235                 else
3236                         folder_item_move_msgs(new_item, mlist);
3237                 procmsg_msg_list_free(mlist);
3238         }
3239
3240         /*copy prefs*/
3241         folder_item_prefs_copy_prefs(src, new_item);
3242
3243         /* copy internal data */
3244         if (src->folder->klass == new_item->folder->klass &&
3245             src->folder->klass->copy_private_data != NULL)
3246                 src->folder->klass->copy_private_data(src->folder,
3247                                         src, new_item);
3248         new_item->collapsed = src->collapsed;
3249         new_item->thread_collapsed = src->thread_collapsed;
3250         new_item->threaded  = src->threaded;
3251         new_item->ret_rcpt  = src->ret_rcpt;
3252         new_item->hide_read_msgs = src->hide_read_msgs;
3253         new_item->hide_del_msgs = src->hide_del_msgs;
3254         new_item->sort_key  = src->sort_key;
3255         new_item->sort_type = src->sort_type;
3256
3257         prefs_matcher_write_config();
3258
3259         /* recurse */
3260         srcnode = src->folder->node;
3261         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
3262         srcnode = srcnode->children;
3263         while (srcnode != NULL) {
3264                 if (srcnode && srcnode->data) {
3265                         next_item = (FolderItem*) srcnode->data;
3266                         srcnode = srcnode->next;
3267                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
3268                                 return NULL;
3269                         }
3270                 }
3271         }
3272         old_id = folder_item_get_identifier(src);
3273         new_id = folder_item_get_identifier(new_item);
3274
3275         /* if src supports removing, otherwise only copy folder */
3276         if (src->folder->klass->remove_folder != NULL && !copy)
3277                 src->folder->klass->remove_folder(src->folder, src);
3278         folder_write_list();
3279
3280         if (!copy) {
3281                 debug_print("updating rules : %s => %s\n", old_id, new_id);
3282                 if (old_id != NULL && new_id != NULL) {
3283                         prefs_filtering_rename_path(old_id, new_id);
3284                         account_rename_path(old_id, new_id);
3285                 }
3286         }
3287         g_free(old_id);
3288         g_free(new_id);
3289
3290         return new_item;
3291 }
3292
3293 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
3294 {
3295         FolderItem *tmp = folder_item_parent(dest);
3296         gchar * src_identifier, * dst_identifier;
3297         gchar * phys_srcpath, * phys_dstpath, *tmppath;
3298
3299         while (tmp) {
3300                 if (tmp == src) {
3301                         return F_MOVE_FAILED_DEST_IS_CHILD;
3302                 }
3303                 tmp = folder_item_parent(tmp);
3304         }
3305
3306         tmp = folder_item_parent(src);
3307
3308         src_identifier = folder_item_get_identifier(src);
3309         dst_identifier = folder_item_get_identifier(dest);
3310
3311         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
3312                 /* dest can be a root folder */
3313                 dst_identifier = folder_get_identifier(dest->folder);
3314         }
3315         if (src_identifier == NULL || dst_identifier == NULL) {
3316                 debug_print("Can't get identifiers\n");
3317                 return F_MOVE_FAILED;
3318         }
3319
3320         if (src->folder != dest->folder && !copy) {
3321                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
3322         }
3323
3324         phys_srcpath = folder_item_get_path(src);
3325         tmppath = folder_item_get_path(dest);
3326         phys_dstpath = g_strconcat(tmppath,
3327                        G_DIR_SEPARATOR_S,
3328                        g_path_get_basename(phys_srcpath),
3329                        NULL);
3330         g_free(tmppath);
3331
3332         if (folder_item_parent(src) == dest || src == dest) {
3333                 g_free(src_identifier);
3334                 g_free(dst_identifier);
3335                 g_free(phys_srcpath);
3336                 g_free(phys_dstpath);
3337                 return F_MOVE_FAILED_DEST_IS_PARENT;
3338         }
3339         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
3340         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
3341                 return F_MOVE_FAILED;
3342         }
3343
3344         g_free(src_identifier);
3345         g_free(dst_identifier);
3346         g_free(phys_srcpath);
3347         g_free(phys_dstpath);
3348
3349         *new_item = tmp;
3350
3351         return F_MOVE_OK;
3352 }
3353
3354 /**
3355  * Copy a list of message to a new folder and remove
3356  * source messages if wanted
3357  */
3358 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
3359 {
3360         Folder *folder;
3361         GSList *l;
3362         gint num, lastnum = -1;
3363         gboolean folderscan = FALSE;
3364         GRelation *relation;
3365         GSList *not_moved = NULL;
3366         gint total = 0, curmsg = 0;
3367         MsgInfo *msginfo = NULL;
3368
3369         cm_return_val_if_fail(dest != NULL, -1);
3370         cm_return_val_if_fail(msglist != NULL, -1);
3371
3372         folder = dest->folder;
3373
3374         cm_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3375         if (dest->no_select)
3376                 return -1;
3377
3378         msginfo = (MsgInfo *)msglist->data;
3379
3380         if (!msginfo)
3381                 return -1;
3382
3383         if (!MSG_IS_QUEUED(msginfo->flags) &&
3384             MSG_IS_DRAFT(msginfo->flags) &&
3385             folder_has_parent_of_type(dest, F_QUEUE)) {
3386                 GSList *cur = msglist;
3387                 gboolean queue_err = FALSE;
3388                 for (; cur; cur = cur->next) {
3389                         Compose *compose = NULL;
3390                         FolderItem *queue = dest;
3391                         int val = 0;
3392
3393                         msginfo = (MsgInfo *)cur->data;
3394                         compose = compose_reedit(msginfo, TRUE);
3395                         if (compose == NULL) {
3396                                 queue_err = TRUE;
3397                                 continue;
3398                         }
3399                         val = compose_queue(compose, NULL, &queue, NULL,
3400                                         FALSE);
3401                         if (val < 0) {
3402                                 queue_err = TRUE;
3403                         } else if (remove_source) {
3404                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3405                         }
3406                         if (val == 0)
3407                                 compose_close(compose);
3408                 }
3409                 return queue_err ? -1:0;
3410         }
3411
3412         relation = g_relation_new(2);
3413         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3414         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
3415
3416         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3417                 MsgInfo * msginfo = (MsgInfo *) l->data;
3418
3419                 if (msginfo->planned_download != 0) {
3420                         int old_planned = msginfo->planned_download;
3421                         partial_unmark(msginfo);
3422                         /* little hack to reenable after */
3423                         msginfo->planned_download = old_planned;
3424                 }
3425         }
3426
3427         /*
3428          * Copy messages to destination folder and
3429          * store new message numbers in newmsgnums
3430          */
3431         if (folder->klass->copy_msgs != NULL) {
3432                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3433                         g_relation_destroy(relation);
3434                         return -1;
3435                 }
3436         } else {
3437                 MsgInfo * msginfo;
3438                 l = msglist;
3439
3440                 /* immediately stop if src and dest folders are identical */
3441                 if (l != NULL) {
3442                         msginfo = (MsgInfo *) l->data;
3443                         if (msginfo != NULL && msginfo->folder == dest) {
3444                                 g_relation_destroy(relation);
3445                                 return -1;
3446                         }
3447                 }
3448
3449                 for (; l != NULL ; l = g_slist_next(l)) {
3450                         msginfo = (MsgInfo *) l->data;
3451
3452                         num = folder->klass->copy_msg(folder, dest, msginfo);
3453                         if (num > 0)
3454                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
3455                         else
3456                                 not_moved = g_slist_prepend(not_moved, msginfo);
3457                 }
3458         }
3459
3460         if (remove_source) {
3461                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3462                 FolderItem *item = msginfo->folder;
3463                 /*
3464                  * Remove source messages from their folders if
3465                  * copying was successfull and update folder
3466                  * message counts
3467                  */
3468                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3469                         item->folder->klass->remove_msgs(item->folder,
3470                                                                 msginfo->folder,
3471                                                                 msglist,
3472                                                                 relation);
3473                 }
3474                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3475                         GTuples *tuples;
3476                         msginfo = (MsgInfo *) l->data;
3477                         item = msginfo->folder;
3478
3479                         tuples = g_relation_select(relation, msginfo, 0);
3480                         if (tuples) {
3481                                 if (tuples->len)
3482                                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3483                                 else
3484                                         num = 0;
3485                                 g_tuples_destroy(tuples);
3486                         } else {
3487                                 num = -1;
3488                         }
3489
3490                         if (g_slist_find(not_moved, msginfo))
3491                                 continue;
3492
3493                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3494                                 if (!item->folder->klass->remove_msgs)
3495                                         item->folder->klass->remove_msg(item->folder,
3496                                                                 msginfo->folder,
3497                                                                 msginfo->msgnum);
3498                                 if (!item->folder->account || item->folder->account->imap_use_trash) {
3499                                         remove_msginfo_from_cache(item, msginfo);
3500                                 }
3501                         }
3502                 }
3503         }
3504
3505         /* Read cache for dest folder */
3506         if (!dest->cache) folder_item_read_cache(dest);
3507
3508         /*
3509          * Fetch new MsgInfos for new messages in dest folder,
3510          * add them to the msgcache and update folder message counts
3511          */
3512         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
3513                 folder_item_scan_full(dest, FALSE);
3514                 folderscan = TRUE;
3515         }
3516
3517         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3518         total = g_slist_length(msglist);
3519
3520         if (FOLDER_TYPE(dest->folder) == F_IMAP && total > 1) {
3521                 folder_item_scan_full(dest, FALSE);
3522                 folderscan = TRUE;
3523         }
3524         folder_item_set_batch(dest, TRUE);
3525         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3526                 MsgInfo *msginfo = (MsgInfo *) l->data;
3527                 GTuples *tuples;
3528
3529                 if (!msginfo)
3530                         continue;
3531                 tuples = g_relation_select(relation, msginfo, 0);
3532                 if (tuples && tuples->len > 0) {
3533                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3534                         g_tuples_destroy(tuples);
3535                 } else {
3536                         num = 0;
3537                         if (tuples)
3538                                 g_tuples_destroy(tuples);
3539                 }
3540                 statusbar_progress_all(curmsg++,total, 100);
3541                 if (curmsg % 100 == 0)
3542                         GTK_EVENTS_FLUSH();
3543
3544                 if (num >= 0) {
3545                         MsgInfo *newmsginfo = NULL;
3546
3547                         if (!folderscan && num > 0) {
3548                                 newmsginfo = get_msginfo(dest, num);
3549                                 if (newmsginfo != NULL) {
3550                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3551                                 }
3552                         }
3553                         if (newmsginfo == NULL) {
3554                                 if (!folderscan) {
3555                                         folder_item_scan_full(dest, FALSE);
3556                                         folderscan = TRUE;
3557                                 }
3558                                 if (msginfo->msgid != NULL) {
3559                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3560                                         if (newmsginfo != NULL) {
3561                                                 copy_msginfo_flags(msginfo, newmsginfo);
3562                                                 num = newmsginfo->msgnum;
3563                                         }
3564                                 }
3565                         }
3566
3567                         if (msginfo->planned_download
3568                             == POP3_PARTIAL_DLOAD_DELE) {
3569                                 partial_mark_for_delete(newmsginfo);
3570                         }
3571                         if (msginfo->planned_download
3572                             == POP3_PARTIAL_DLOAD_DLOAD) {
3573                                 partial_mark_for_download(newmsginfo);
3574                         }
3575                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3576                                 procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3577                                 if (newmsginfo) {
3578                                         procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3579                                         hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3580                                 }
3581                         }
3582                         procmsg_msginfo_free(newmsginfo);
3583
3584
3585                         if (num > lastnum)
3586                                 lastnum = num;
3587                 }
3588         }
3589         folder_item_set_batch(dest, FALSE);
3590         statusbar_progress_all(0,0,0);
3591         statusbar_pop_all();
3592
3593         g_relation_destroy(relation);
3594         if (not_moved != NULL) {
3595                 g_slist_free(not_moved);
3596                 return -1;
3597         } else
3598                 return lastnum;
3599 }
3600
3601 /**
3602  * Move a message to a new folder.
3603  *
3604  * \param dest Destination folder
3605  * \param msginfo The message
3606  */
3607 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3608 {
3609         GSList list;
3610
3611         cm_return_val_if_fail(dest != NULL, -1);
3612         cm_return_val_if_fail(msginfo != NULL, -1);
3613
3614         list.data = msginfo;
3615         list.next = NULL;
3616
3617         return do_copy_msgs(dest, &list, TRUE);
3618 }
3619
3620 /**
3621  * Move a list of messages to a new folder.
3622  *
3623  * \param dest Destination folder
3624  * \param msglist List of messages
3625  */
3626 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3627 {
3628         gint result = -1;
3629         cm_return_val_if_fail(dest != NULL, -1);
3630         cm_return_val_if_fail(msglist != NULL, -1);
3631         inc_lock();
3632         result = do_copy_msgs(dest, msglist, TRUE);
3633         inc_unlock();
3634         return result;
3635 }
3636
3637 /**
3638  * Copy a message to a new folder.
3639  *
3640  * \param dest Destination folder
3641  * \param msginfo The message
3642  */
3643 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3644 {
3645         GSList list;
3646
3647         cm_return_val_if_fail(dest != NULL, -1);
3648         cm_return_val_if_fail(msginfo != NULL, -1);
3649
3650         list.data = msginfo;
3651         list.next = NULL;
3652
3653         return do_copy_msgs(dest, &list, FALSE);
3654 }
3655
3656 /**
3657  * Copy a list of messages to a new folder.
3658  *
3659  * \param dest Destination folder
3660  * \param msglist List of messages
3661  */
3662 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3663 {
3664         gint result;
3665         cm_return_val_if_fail(dest != NULL, -1);
3666         cm_return_val_if_fail(msglist != NULL, -1);
3667
3668         inc_lock();
3669         result = do_copy_msgs(dest, msglist, FALSE);
3670         inc_unlock();
3671
3672         return result;
3673 }
3674
3675 gint folder_item_remove_msg(FolderItem *item, gint num)
3676 {
3677         Folder *folder;
3678         gint ret;
3679         MsgInfo *msginfo;
3680
3681         cm_return_val_if_fail(item != NULL, -1);
3682         folder = item->folder;
3683         cm_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3684         if (item->no_select)
3685                 return -1;
3686
3687         if (!item->cache) folder_item_read_cache(item);
3688
3689         msginfo = msgcache_get_msg(item->cache, num);
3690         if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3691                 procmsg_msginfo_free(msginfo);
3692                 return -1;
3693         }
3694         ret = folder->klass->remove_msg(folder, item, num);
3695
3696         if (!item->folder->account || item->folder->account->imap_use_trash) {
3697                 if (msginfo != NULL) {
3698                         remove_msginfo_from_cache(item, msginfo);
3699                         procmsg_msginfo_free(msginfo);
3700                 }
3701         }
3702
3703         return ret;
3704 }
3705
3706 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3707 {
3708         Folder *folder;
3709         gint ret = 0;
3710         GSList *real_list = NULL, *cur = NULL;
3711
3712         cm_return_val_if_fail(item != NULL, -1);
3713         folder = item->folder;
3714         cm_return_val_if_fail(folder != NULL, -1);
3715         if (item->no_select)
3716                 return -1;
3717         inc_lock();
3718         if (!item->cache) folder_item_read_cache(item);
3719
3720         folder_item_update_freeze();
3721
3722         /* filter out locked mails */
3723         for (cur = msglist; cur; cur = cur->next) {
3724                 MsgInfo *info = (MsgInfo *)cur->data;
3725                 if (!MSG_IS_LOCKED(info->flags))
3726                         real_list = g_slist_prepend(real_list, info);
3727         }
3728
3729         real_list = g_slist_reverse(real_list);
3730
3731         if (item->folder->klass->remove_msgs) {
3732                 ret = item->folder->klass->remove_msgs(item->folder,
3733                                                         item,
3734                                                         real_list,
3735                                                         NULL);
3736         }
3737         while (ret == 0 && real_list != NULL) {
3738                 MsgInfo *msginfo = (MsgInfo *)real_list->data;
3739                 if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3740                         real_list = real_list->next;
3741                         continue;
3742                 }
3743                 if (!item->folder->klass->remove_msgs)
3744                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3745                 if (ret != 0) break;
3746                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3747                 real_list = real_list->next;
3748         }
3749         g_slist_free(real_list);
3750         folder_item_scan_full(item, FALSE);
3751         folder_item_update_thaw();
3752         inc_unlock();
3753         return ret;
3754 }
3755
3756 gint folder_item_expunge(FolderItem *item)
3757 {
3758         Folder *folder = item->folder;
3759         gint result = 0;
3760         if (folder == NULL)
3761                 return -1;
3762         if (folder->klass->expunge) {
3763                 GSList *msglist = folder_item_get_msg_list(item);
3764                 GSList *cur;
3765                 result = folder->klass->expunge(folder, item);
3766                 if (result == 0) {
3767                         for (cur = msglist; cur; cur = cur->next) {
3768                                 MsgInfo *msginfo = (MsgInfo *)cur->data;
3769                                 if (MSG_IS_DELETED(msginfo->flags)) {
3770                                         remove_msginfo_from_cache(item, msginfo);
3771                                 }
3772                         }
3773                 }
3774                 procmsg_msg_list_free(msglist);
3775         }
3776         return result;
3777 }
3778
3779 gint folder_item_remove_all_msg(FolderItem *item)
3780 {
3781         Folder *folder;
3782         gint result;
3783
3784         cm_return_val_if_fail(item != NULL, -1);
3785         if (item->no_select)
3786                 return -1;
3787
3788         folder = item->folder;
3789
3790         inc_lock();
3791         if (folder->klass->remove_all_msg != NULL) {
3792                 result = folder->klass->remove_all_msg(folder, item);
3793
3794                 if (result == 0) {
3795                         folder_item_free_cache(item, TRUE);
3796                         item->cache = msgcache_new();
3797                         item->cache_dirty = TRUE;
3798                         item->mark_dirty = TRUE;
3799                         item->tags_dirty = TRUE;
3800                 }
3801         } else {
3802                 MsgInfoList *msglist;
3803
3804                 msglist = folder_item_get_msg_list(item);
3805                 result = folder_item_remove_msgs(item, msglist);
3806                 procmsg_msg_list_free(msglist);
3807         }
3808
3809         if (result == 0) {
3810                 item->new_msgs = 0;
3811                 item->unread_msgs = 0;
3812                 item->unreadmarked_msgs = 0;
3813                 item->marked_msgs = 0;
3814                 item->total_msgs = 0;
3815                 item->replied_msgs = 0;
3816                 item->forwarded_msgs = 0;
3817                 item->locked_msgs = 0;
3818                 item->ignored_msgs = 0;
3819                 item->watched_msgs = 0;
3820                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3821         }
3822
3823         inc_unlock();
3824         return result;
3825 }
3826
3827 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3828 {
3829         cm_return_if_fail(item != NULL);
3830         cm_return_if_fail(msginfo != NULL);
3831
3832         item->mark_dirty = TRUE;
3833
3834         if (item->no_select)
3835                 return;
3836
3837         if (item->folder->klass->change_flags != NULL && item->scanning != ITEM_SCANNING_WITH_FLAGS) {
3838                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3839         } else {
3840                 msginfo->flags.perm_flags = newflags;
3841         }
3842 }
3843
3844 void folder_item_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_set, GSList *tags_unset)
3845 {
3846         Folder *folder = NULL;
3847
3848         if (!msginfo)
3849                 return;
3850         if (!item)
3851                 return;
3852         if (!tags_set && !tags_unset)
3853                 return;
3854
3855         folder = item->folder;
3856         if (!folder)
3857                 return;
3858
3859         item->tags_dirty = TRUE;
3860
3861         if (folder->klass->commit_tags == NULL)
3862                 return;
3863
3864         folder->klass->commit_tags(item, msginfo, tags_set, tags_unset);
3865 }
3866
3867 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3868 {
3869         Folder *folder;
3870
3871         cm_return_val_if_fail(item != NULL, FALSE);
3872         if (item->no_select)
3873                 return FALSE;
3874
3875         folder = item->folder;
3876
3877         cm_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3878
3879         return folder->klass->is_msg_changed(folder, item, msginfo);
3880 }
3881
3882 void folder_item_discard_cache(FolderItem *item)
3883 {
3884         gchar *dir;
3885         gchar *cache;
3886
3887         if (!item)
3888                 return;
3889
3890         if (item->cache) {
3891                 msgcache_destroy(item->cache);
3892                 item->cache = NULL;
3893         }
3894         dir = folder_item_get_path(item);
3895         if (is_dir_exist(dir))
3896                 remove_all_numbered_files(dir);
3897         g_free(dir);
3898
3899         cache = folder_item_get_cache_file(item);
3900         if (is_file_exist(cache))
3901                 claws_unlink(cache);
3902         g_free(cache);
3903
3904 }
3905
3906 static gchar *folder_item_get_cache_file(FolderItem *item)
3907 {
3908         gchar *path;
3909         gchar *file;
3910         gchar *old_file;
3911
3912         cm_return_val_if_fail(item != NULL, NULL);
3913         cm_return_val_if_fail(item->path != NULL, NULL);
3914
3915         path = folder_item_get_path(item);
3916         cm_return_val_if_fail(path != NULL, NULL);
3917         if (!is_dir_exist(path))
3918                 make_dir_hier(path);
3919         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3920         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
3921
3922         if (!is_file_exist(file) && is_file_exist(old_file))
3923                 move_file(old_file, file, FALSE);
3924         g_free(old_file);
3925         g_free(path);
3926
3927         return file;
3928 }
3929
3930 static gchar *folder_item_get_mark_file(FolderItem *item)
3931 {
3932         gchar *path;
3933         gchar *file;
3934         gchar *old_file;
3935
3936         cm_return_val_if_fail(item != NULL, NULL);
3937         cm_return_val_if_fail(item->path != NULL, NULL);
3938
3939         path = folder_item_get_path(item);
3940         cm_return_val_if_fail(path != NULL, NULL);
3941         if (!is_dir_exist(path))
3942                 make_dir_hier(path);
3943         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3944         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
3945
3946         if (!is_file_exist(file) && is_file_exist(old_file))
3947                 move_file(old_file, file, FALSE);
3948         g_free(old_file);
3949         g_free(path);
3950
3951         return file;
3952 }
3953
3954 static gchar *folder_item_get_tags_file(FolderItem *item)
3955 {
3956         gchar *path;
3957         gchar *identifier;
3958         gchar *file;
3959
3960         /* we save tags files in rc_dir, because tagsrc is there too,
3961          * and storing tags directly in the mailboxes would give strange
3962          * result when using another Claws mailbox from another install
3963          * with different tags. */
3964
3965         cm_return_val_if_fail(item != NULL, NULL);
3966
3967         identifier = folder_item_get_identifier(item);
3968         cm_return_val_if_fail(identifier != NULL, NULL);
3969
3970 #ifdef G_OS_WIN32
3971         while (strchr(identifier, '/'))
3972                 *strchr(identifier, '/') = '\\';
3973 #endif
3974
3975         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3976                            "tagsdb", G_DIR_SEPARATOR_S,
3977                            identifier, NULL);
3978
3979         g_free(identifier);
3980
3981         if (!is_dir_exist(path))
3982                 make_dir_hier(path);
3983
3984         file = g_strconcat(path, G_DIR_SEPARATOR_S, TAGS_FILE, NULL);
3985
3986         g_free(path);
3987
3988         return file;
3989 }
3990
3991 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3992 {
3993         XMLNode *xmlnode = (XMLNode *) nodedata;
3994         Folder *folder = (Folder *) data;
3995         FolderItem *item;
3996
3997         cm_return_val_if_fail(xmlnode != NULL, NULL);
3998         cm_return_val_if_fail(folder != NULL, NULL);
3999
4000         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
4001                 g_warning("tag name != \"folderitem\"\n");
4002                 return NULL;
4003         }
4004
4005         item = folder_item_new(folder, "", "");
4006         if (folder->klass->item_set_xml != NULL)
4007                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
4008         else
4009                 folder_item_set_xml(folder, item, xmlnode->tag);
4010
4011         item->folder = folder;
4012
4013         switch (item->stype) {
4014         case F_INBOX:  folder->inbox  = item; break;
4015         case F_OUTBOX: folder->outbox = item; break;
4016         case F_DRAFT:  folder->draft  = item; break;
4017         case F_QUEUE:  folder->queue  = item; break;
4018         case F_TRASH:  folder->trash  = item; break;
4019         default:       break;
4020         }
4021         folder_item_prefs_read_config(item);
4022
4023         return item;
4024 }
4025
4026 static gboolean folder_item_set_node(GNode *node, gpointer data)
4027 {
4028         FolderItem *item = (FolderItem *) node->data;
4029         item->node = node;
4030
4031         return FALSE;
4032 }
4033
4034 static Folder *folder_get_from_xml(GNode *node)
4035 {
4036         Folder *folder;
4037         XMLNode *xmlnode;
4038         GList *list;
4039         FolderClass *klass = NULL;
4040         GNode *cur;
4041
4042         cm_return_val_if_fail(node->data != NULL, NULL);
4043
4044         xmlnode = node->data;
4045         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
4046                 g_warning("tag name != \"folder\"\n");
4047                 return NULL;
4048         }
4049         list = xmlnode->tag->attr;
4050         for (; list != NULL; list = list->next) {
4051                 XMLAttr *attr = list->data;
4052
4053                 if (!attr || !attr->name || !attr->value) continue;
4054                 if (!strcmp(attr->name, "type"))
4055                         klass = folder_get_class_from_string(attr->value);
4056         }
4057         if (klass == NULL)
4058                 return NULL;
4059
4060         folder = folder_new(klass, "", "");
4061         cm_return_val_if_fail(folder != NULL, NULL);
4062
4063         if (klass->set_xml)
4064                 klass->set_xml(folder, xmlnode->tag);
4065         else
4066                 folder_set_xml(folder, xmlnode->tag);
4067
4068         cur = node->children;
4069         while (cur != NULL) {
4070                 GNode *itemnode;
4071
4072                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
4073                 g_node_append(folder->node, itemnode);
4074                 cur = cur->next;
4075         }
4076         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
4077
4078         return folder;
4079 }
4080
4081 static gchar *folder_get_list_path(void)
4082 {
4083         static gchar *filename = NULL;
4084
4085         if (!filename)
4086                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4087                                         FOLDER_LIST, NULL);
4088
4089         return filename;
4090 }
4091
4092 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
4093 {
4094         FolderItem *item = (FolderItem *) nodedata;
4095         XMLTag *tag;
4096
4097         cm_return_val_if_fail(item != NULL, NULL);
4098
4099         if (item->folder->klass->item_get_xml != NULL)
4100                 tag = item->folder->klass->item_get_xml(item->folder, item);
4101         else
4102                 tag = folder_item_get_xml(item->folder, item);
4103
4104         return xml_node_new(tag, NULL);
4105 }
4106
4107 static GNode *folder_get_xml_node(Folder *folder)
4108 {
4109         GNode *node;
4110         XMLNode *xmlnode;
4111         XMLTag *tag;
4112
4113         cm_return_val_if_fail(folder != NULL, NULL);
4114
4115         if (folder->klass->get_xml != NULL)
4116                 tag = folder->klass->get_xml(folder);
4117         else
4118                 tag = folder_get_xml(folder);
4119
4120         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
4121
4122         xmlnode = xml_node_new(tag, NULL);
4123
4124         node = g_node_new(xmlnode);
4125
4126         cm_return_val_if_fail (folder->node != NULL, NULL);
4127
4128         if (folder->node->children) {
4129                 GNode *cur;
4130
4131                 cur = folder->node->children;
4132                 while (cur) {
4133                         GNode *xmlnode;
4134
4135                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
4136                         g_node_append(node, xmlnode);
4137                         cur = cur->next;
4138                 }
4139         }
4140
4141         return node;
4142 }
4143
4144 static void folder_update_op_count_rec(GNode *node)
4145 {
4146         FolderItem *fitem = FOLDER_ITEM(node->data);
4147
4148         if (g_node_depth(node) > 0) {
4149                 if (fitem->op_count > 0) {
4150                         fitem->op_count = 0;
4151                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
4152                 }
4153                 if (node->children) {
4154                         GNode *child;
4155
4156                         child = node->children;
4157                         while (child) {
4158                                 GNode *cur;
4159
4160                                 cur = child;
4161                                 child = cur->next;
4162                                 folder_update_op_count_rec(cur);
4163                         }
4164                 }
4165         }
4166 }
4167
4168 void folder_update_op_count(void)
4169 {
4170         GList *cur;
4171         Folder *folder;
4172
4173         for (cur = folder_list; cur != NULL; cur = cur->next) {
4174                 folder = cur->data;
4175                 folder_update_op_count_rec(folder->node);
4176         }
4177 }
4178
4179 typedef struct _type_str {
4180         gchar * str;
4181         gint type;
4182 } type_str;
4183
4184
4185 /*
4186 static gchar * folder_item_get_tree_identifier(FolderItem * item)
4187 {
4188         if (item->parent != NULL) {
4189                 gchar * path;
4190                 gchar * id;
4191
4192                 path = folder_item_get_tree_identifier(item->parent);
4193                 if (path == NULL)
4194                         return NULL;
4195
4196                 id = g_strconcat(path, "/", item->name, NULL);
4197                 g_free(path);
4198
4199                 return id;
4200         }
4201         else {
4202                 return g_strconcat("/", item->name, NULL);
4203         }
4204 }
4205 */
4206
4207 /* CLAWS: temporary local folder for filtering */
4208 #define TEMP_FOLDER "TEMP_FOLDER"
4209 #define PROCESSING_FOLDER_ITEM "processing"
4210
4211 static FolderItem *processing_folder_item;
4212
4213 static void folder_create_processing_folder(void)
4214 {
4215         Folder *processing_folder;
4216         gchar      *tmpname;
4217
4218         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
4219                 gchar *tmppath;
4220
4221                 tmppath =
4222                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4223                                 "tempfolder", NULL);
4224                 processing_folder =
4225                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
4226                 g_free(tmppath);
4227         }
4228         g_assert(processing_folder != NULL);
4229
4230         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
4231         /* FIXME: [W32] The code below does not correctly merge
4232            relative filenames; there should be a function to handle
4233            this.  */
4234         if (!is_relative_filename(LOCAL_FOLDER(processing_folder)->rootpath))
4235                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
4236                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
4237                                       NULL);
4238         else
4239                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
4240                                       LOCAL_FOLDER(processing_folder)->rootpath,
4241                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
4242                                       NULL);
4243
4244         if (!is_dir_exist(tmpname)) {
4245                 debug_print("*TMP* creating %s\n", tmpname);
4246                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
4247                                                                                  processing_folder->node->data,
4248                                                                                  PROCESSING_FOLDER_ITEM);
4249         } else {
4250                 debug_print("*TMP* already created\n");
4251                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
4252                 g_assert(processing_folder_item);
4253                 folder_item_append(processing_folder->node->data, processing_folder_item);
4254         }
4255         g_assert(processing_folder_item != NULL);
4256         g_free(tmpname);
4257 }
4258
4259 FolderItem *folder_get_default_processing(void)
4260 {
4261         if (!processing_folder_item) {
4262                 folder_create_processing_folder();
4263         }
4264         return processing_folder_item;
4265 }
4266
4267 /* folder_persist_prefs_new() - return hash table with persistent
4268  * settings (and folder name as key).
4269  * (note that in claws other options are in the folder_item_prefs_RC
4270  * file, so those don't need to be included in PersistPref yet)
4271  */
4272 static GHashTable *folder_persist_prefs_new(Folder *folder)
4273 {
4274         GHashTable *pptable;
4275
4276         cm_return_val_if_fail(folder, NULL);
4277         pptable = g_hash_table_new(g_str_hash, g_str_equal);
4278         folder_get_persist_prefs_recursive(folder->node, pptable);
4279         return pptable;
4280 }
4281
4282 static void folder_persist_prefs_free(GHashTable *pptable)
4283 {
4284         cm_return_if_fail(pptable);
4285         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
4286         g_hash_table_destroy(pptable);
4287 }
4288
4289 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
4290 {
4291         if (pptable == NULL || name == NULL) return NULL;
4292         return g_hash_table_lookup(pptable, name);
4293 }
4294
4295 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
4296 {
4297         const PersistPrefs *pp;
4298         gchar *id = folder_item_get_identifier(item);
4299
4300         pp = folder_get_persist_prefs(pptable, id);
4301         g_free(id);
4302
4303         if (!pp) return;
4304
4305         /* CLAWS: since not all folder properties have been migrated to
4306          * folderlist.xml, we need to call the old stuff first before
4307          * setting things that apply both to Main and Claws. */
4308         folder_item_prefs_read_config(item);
4309
4310         item->collapsed = pp->collapsed;
4311         item->thread_collapsed = pp->thread_collapsed;
4312         item->threaded  = pp->threaded;
4313         item->ret_rcpt  = pp->ret_rcpt;
4314         item->hide_read_msgs = pp->hide_read_msgs;
4315         item->hide_del_msgs = pp->hide_del_msgs;
4316         item->sort_key  = pp->sort_key;
4317         item->sort_type = pp->sort_type;
4318 }
4319
4320 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
4321 {
4322         FolderItem *item = FOLDER_ITEM(node->data);
4323         PersistPrefs *pp;
4324         GNode *child, *cur;
4325         gchar *id;
4326
4327         cm_return_if_fail(node != NULL);
4328         cm_return_if_fail(item != NULL);
4329
4330         /* NOTE: item->path == NULL means top level folder; not interesting
4331          * to store preferences of that one.  */
4332         if (item->path) {
4333                 id = folder_item_get_identifier(item);
4334                 pp = g_new0(PersistPrefs, 1);
4335                 cm_return_if_fail(pp != NULL);
4336                 pp->collapsed = item->collapsed;
4337                 pp->thread_collapsed = item->thread_collapsed;
4338                 pp->threaded  = item->threaded;
4339                 pp->ret_rcpt  = item->ret_rcpt;
4340                 pp->hide_read_msgs = item->hide_read_msgs;
4341                 pp->hide_del_msgs = item->hide_del_msgs;
4342                 pp->sort_key  = item->sort_key;
4343                 pp->sort_type = item->sort_type;
4344                 g_hash_table_insert(pptable, id, pp);
4345         }
4346
4347         if (node->children) {
4348                 child = node->children;
4349                 while (child) {
4350                         cur = child;
4351                         child = cur->next;
4352                         folder_get_persist_prefs_recursive(cur, pptable);
4353                 }
4354         }
4355 }
4356
4357 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
4358 {
4359         g_free(key);
4360         g_free(val);
4361         return TRUE;
4362 }
4363
4364 void folder_item_apply_processing(FolderItem *item)
4365 {
4366         GSList *processing_list;
4367         GSList *mlist, *cur;
4368         guint total = 0, curmsg = 0;
4369         gint last_apply_per_account;
4370
4371         cm_return_if_fail(item != NULL);
4372
4373         if (item->no_select)
4374                return;
4375
4376         processing_list = item->prefs->processing;
4377
4378         if (!pre_global_processing && !processing_list
4379         &&  !post_global_processing)
4380                 return;
4381
4382         debug_print("processing %s\n", item->name);
4383         folder_item_update_freeze();
4384
4385         inc_lock();
4386
4387         mlist = folder_item_get_msg_list(item);
4388         total = g_slist_length(mlist);
4389         statusbar_print_all(_("Processing messages..."));
4390
4391         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
4392         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
4393
4394         folder_item_set_batch(item, TRUE);
4395         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4396                 MsgInfo * msginfo;
4397
4398                 msginfo = (MsgInfo *) cur->data;
4399
4400                 /* reset parameters that can be modified by processing */
4401                 msginfo->hidden = 0;
4402                 msginfo->score = 0;
4403
4404                 statusbar_progress_all(curmsg++,total, 10);
4405
4406                 /* apply pre global rules */
4407                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
4408                                 FILTERING_PRE_PROCESSING, NULL);
4409
4410                 /* apply rules of the folder */
4411                 filter_message_by_msginfo(processing_list, msginfo, NULL,
4412                                 FILTERING_FOLDER_PROCESSING, item->name);
4413
4414                 /* apply post global rules */
4415                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
4416                                 FILTERING_POST_PROCESSING, NULL);
4417                 if (curmsg % 1000 == 0)
4418                         GTK_EVENTS_FLUSH();
4419         }
4420         folder_item_set_batch(item, FALSE);
4421
4422         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
4423
4424         if (pre_global_processing || processing_list
4425             || post_global_processing)
4426                 filtering_move_and_copy_msgs(mlist);
4427         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4428                 MsgInfo * msginfo = (MsgInfo *)cur->data;
4429                 procmsg_msginfo_free(msginfo);
4430         }
4431         g_slist_free(mlist);
4432
4433         statusbar_progress_all(0,0,0);
4434         statusbar_pop_all();
4435
4436         inc_unlock();
4437
4438         folder_item_update_thaw();
4439 }
4440
4441 /*
4442  *  functions for handling FolderItem content changes
4443  */
4444 static gint folder_item_update_freeze_cnt = 0;
4445
4446 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
4447 {
4448         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
4449                 FolderItemUpdateData source;
4450
4451                 source.item = item;
4452                 source.update_flags = update_flags;
4453                 source.msg = msg;
4454                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4455         } else {
4456                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
4457         }
4458 }
4459
4460 /**
4461  * Notify the folder system about changes to a folder. If the
4462  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
4463  * be invoked, otherwise the changes will be remebered until
4464  * the folder system is thawed.
4465  *
4466  * \param item The FolderItem that was changed
4467  * \param update_flags Type of changed that was made
4468  */
4469 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
4470 {
4471         folder_item_update_with_msg(item, update_flags, NULL);
4472 }
4473
4474 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
4475 {
4476         GNode *node = item->folder->node;
4477
4478         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
4479         node = node->children;
4480
4481         folder_item_update(item, update_flags);
4482         while (node != NULL) {
4483                 if (node && node->data) {
4484                         FolderItem *next_item = (FolderItem*) node->data;
4485
4486                         folder_item_update(next_item, update_flags);
4487                 }
4488                 node = node->next;
4489         }
4490 }
4491
4492 void folder_item_update_freeze(void)
4493 {
4494         folder_item_update_freeze_cnt++;
4495 }
4496
4497 static void folder_item_update_func(FolderItem *item, gpointer data)
4498 {
4499         FolderItemUpdateData source;
4500
4501         if (item->update_flags) {
4502                 source.item = item;
4503                 source.update_flags = item->update_flags;
4504                 source.msg = NULL;
4505                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4506                 item->update_flags = 0;
4507         }
4508 }
4509
4510 void folder_item_update_thaw(void)
4511 {
4512         if (folder_item_update_freeze_cnt > 0)
4513                 folder_item_update_freeze_cnt--;
4514         if (folder_item_update_freeze_cnt == 0) {
4515                 /* Update all folders */
4516                 folder_func_to_all_folders(folder_item_update_func, NULL);
4517         }
4518 }
4519
4520 void folder_item_synchronise(FolderItem *item)
4521 {
4522         if (!item)
4523                 return;
4524         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4525                 statuswindow_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4526                 item->folder->klass->synchronise(item,
4527                         item->prefs->offlinesync_days);
4528                 if (item->prefs->offlinesync_days > 0 &&
4529                     item->prefs->remove_old_bodies)
4530                         folder_item_clean_local_files(item, item->prefs->offlinesync_days);
4531                 statuswindow_pop_all();
4532         }
4533 }
4534
4535 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4536 {
4537         Folder *folder = (Folder *)data;
4538         if (folder == NULL || item->folder == folder) {
4539                 folder_item_synchronise(item);
4540         }
4541 }
4542
4543 void folder_synchronise(Folder *folder)
4544 {
4545         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4546 }
4547
4548 typedef struct _WantSyncData {
4549         Folder *folder;
4550         gboolean want_sync;
4551 } WantSyncData;
4552
4553 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4554 {
4555         WantSyncData *want_sync_data = (WantSyncData *)data;
4556
4557         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4558                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4559                         want_sync_data->want_sync |= TRUE;
4560         }
4561 }
4562
4563 gboolean folder_want_synchronise(Folder *folder)
4564 {
4565         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4566         gboolean result;
4567         want_sync_data->folder = folder;
4568         want_sync_data->want_sync = FALSE;
4569
4570         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4571         result = want_sync_data->want_sync;
4572         g_free(want_sync_data);
4573         if (result > 0)
4574                 debug_print("Folder %s wants sync\n", folder->name);
4575         return result;
4576 }
4577
4578 void folder_item_set_batch (FolderItem *item, gboolean batch)
4579 {
4580         if (!item || !item->folder)
4581                 return;
4582         if (item->folder->klass->set_batch) {
4583                 item->folder->klass->set_batch(item->folder, item, batch);
4584         }
4585 }
4586
4587 gboolean folder_has_parent_of_type(FolderItem *item,
4588                                           SpecialFolderItemType type)
4589 {
4590         FolderItem *cur = item;
4591
4592         if (!item)
4593                 return FALSE;
4594         /* if we already know it, make it short */
4595         if (item->parent_stype != -1) {
4596                 return (item->parent_stype == type);
4597         }
4598
4599         /* if we don't, find the type from the first possible parent,
4600          * and set our parent type to be faster next time */
4601         while (cur) {
4602                 if (cur->stype == type || cur->parent_stype == type) {
4603                         item->parent_stype = type;
4604                         return TRUE;
4605                 }
4606                 cur = folder_item_parent(cur);
4607         }
4608
4609         /* if we didn't match what was asked, we didn't return. If our
4610          * parent type is unknown, we may as well find it now to be faster
4611          * later. */
4612         if (item->parent_stype == -1) {
4613                 cur = item;
4614                 while (cur) {
4615                         /* here's an exception: Inbox subfolders are normal. */
4616                         if (item->parent_stype == -1 && cur->stype == F_INBOX
4617                         && item != cur) {
4618                                 item->parent_stype = F_NORMAL;
4619                                 break;
4620                         }
4621                         /* ah, we know this parent's parent's type, we may as
4622                          * well copy it instead of going up the full way */
4623                         if (cur->parent_stype != -1) {
4624                                 item->parent_stype = cur->parent_stype;
4625                                 break;
4626                         }
4627                         /* we found a parent that has a special type. That's
4628                          * our parent type. */
4629                         if (cur->stype != F_NORMAL) {
4630                                 cur->parent_stype = cur->stype;
4631                                 item->parent_stype = cur->stype;
4632                                 break;
4633                         }
4634                         /* if we didn't find anything, go up once more */
4635                         cur = folder_item_parent(cur);
4636                 }
4637                 /* as we still didn't find anything, our parents must all be
4638                  * normal. */
4639                 if (item->parent_stype == -1) {
4640                         item->parent_stype = F_NORMAL;
4641                 }
4642         }
4643         return FALSE;
4644 }
4645
4646 gboolean folder_subscribe (const gchar *uri)
4647 {
4648         GList *cur;
4649         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4650                 Folder *folder = (Folder *) cur->data;
4651
4652                 if (folder->klass->subscribe
4653                 &&  folder->klass->subscribe(folder, uri)) {
4654                         return TRUE;
4655                 }
4656         }
4657         return FALSE;
4658
4659 }
4660
4661 gboolean folder_get_sort_type           (Folder         *folder,
4662                                          FolderSortKey  *sort_key,
4663                                          FolderSortType *sort_type)
4664 {
4665         if (!folder || !sort_key || !sort_type)
4666                 return FALSE;
4667         if (folder->klass->get_sort_type == NULL)
4668                 return FALSE;
4669         folder->klass->get_sort_type(folder, sort_key, sort_type);
4670         return TRUE;
4671 }