src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 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 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <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
  61 /* Dependecies to be removed ?! */
  62 #include "prefs_common.h"
  63 #include "prefs_account.h"
  64
  65 /* Define possible missing constants for Windows. */
  66 #ifdef G_OS_WIN32
  67 # ifndef S_IRGRP
  68 # define S_IRGRP 0
  69 # define S_IWGRP 0
  70 # endif
  71 # ifndef S_IROTH
  72 # define S_IROTH 0
  73 # define S_IWOTH 0
  74 # endif
  75 #endif
  76
  77 static GList *folder_list = NULL;
  78 static GSList *class_list = NULL;
  79 static GSList *folder_unloaded_list = NULL;
  80
  81 void folder_init                (Folder         *folder,
  82                                  const gchar    *name);
  83
  84 static gchar *folder_item_get_cache_file        (FolderItem     *item);
  85 static gchar *folder_item_get_mark_file (FolderItem     *item);
  86 static gchar *folder_get_list_path      (void);
  87 static GNode *folder_get_xml_node       (Folder         *folder);
  88 static Folder *folder_get_from_xml      (GNode          *node);
  89 static void folder_update_op_count_rec  (GNode          *node);
  90
  91
  92 static void folder_get_persist_prefs_recursive
  93                                         (GNode *node, GHashTable *pptable);
  94 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  95 static void folder_item_read_cache              (FolderItem *item);
  96 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  97 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
  98                                          MsgInfo *msg);
  99 static GHashTable *folder_persist_prefs_new     (Folder *folder);
 100 static void folder_persist_prefs_free           (GHashTable *pptable);
 101 static void folder_item_restore_persist_prefs   (FolderItem *item, GHashTable *pptable);
 102
 103 void folder_system_init(void)
 104 {
 105         folder_register_class(mh_get_class());
 106         folder_register_class(imap_get_class());
 107         folder_register_class(news_get_class());
 108 }
 109
 110 static GSList *folder_get_class_list(void)
 111 {
 112         return class_list;
 113 }
 114
 115 void folder_register_class(FolderClass *klass)
 116 {
 117         GSList *xmllist, *cur;
 118
 119         debug_print("registering folder class %s\n", klass->idstr);
 120
 121         class_list = g_slist_append(class_list, klass);
 122
 123         xmllist = g_slist_copy(folder_unloaded_list);
 124         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
 125                 GNode *node = (GNode *) cur->data;
 126                 XMLNode *xmlnode = (XMLNode *) node->data;
 127                 GList *cur = xmlnode->tag->attr;
 128
 129                 for (; cur != NULL; cur = g_list_next(cur)) {
 130                         XMLAttr *attr = (XMLAttr *) cur->data;
 131
 132                         if (!attr || !attr->name || !attr->value) continue;
 133                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
 134                                 Folder *folder;
 135
 136                                 folder = folder_get_from_xml(node);
 137                                 folder_add(folder);
 138                                 folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
 139
 140                                 cur = NULL;
 141                                 continue;
 142                         }
 143                 }
 144         }
 145         g_slist_free(xmllist);
 146 }
 147
 148 void folder_unregister_class(FolderClass *klass)
 149 {
 150         GList *folderlist, *cur;
 151
 152         debug_print("unregistering folder class %s\n", klass->idstr);
 153
 154         class_list = g_slist_remove(class_list, klass);
 155
 156         folderlist = g_list_copy(folder_get_list());
 157         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 158                 Folder *folder = (Folder *) cur->data;
 159
 160                 if (folder->klass == klass) {
 161                         GNode *xmlnode = folder_get_xml_node(folder);
 162                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
 163                         folder_destroy(folder);
 164                 }
 165         }
 166         g_list_free(folderlist);
 167 }
 168
 169 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 170 {
 171         Folder *folder = NULL;
 172         FolderItem *item;
 173
 174         g_return_val_if_fail(klass != NULL, NULL);
 175
 176         name = name ? name : path;
 177         folder = klass->new_folder(name, path);
 178
 179         /* Create root folder item */
 180         item = folder_item_new(folder, name, NULL);
 181         if (item == NULL) {
 182                 return NULL;
 183         }
 184         item->folder = folder;
 185         folder->node = item->node = g_node_new(item);
 186         folder->data = NULL;
 187
 188         return folder;
 189 }
 190
 191 void folder_init(Folder *folder, const gchar *name)
 192 {
 193         g_return_if_fail(folder != NULL);
 194
 195         folder_set_name(folder, name);
 196
 197         /* Init folder data */
 198         folder->account = NULL;
 199         folder->sort = 0;
 200         folder->inbox = NULL;
 201         folder->outbox = NULL;
 202         folder->draft = NULL;
 203         folder->queue = NULL;
 204         folder->trash = NULL;
 205 }
 206
 207 static void reset_parent_type(FolderItem *item, gpointer data) {
 208         item->parent_stype = -1;
 209 }
 210
 211 void folder_item_change_type(FolderItem *item, SpecialFolderItemType newtype)
 212 {
 213         Folder *folder = NULL;
 214         FolderUpdateData hookdata;
 215
 216         folder = item->folder;
 217         /* unset previous root of newtype */
 218         switch(newtype) {
 219         case F_INBOX:
 220                 folder_item_change_type(folder->inbox, F_NORMAL);
 221                 folder->inbox = item;
 222                 break;
 223         case F_OUTBOX:
 224                 folder_item_change_type(folder->outbox, F_NORMAL);
 225                 folder->outbox = item;
 226                 break;
 227         case F_QUEUE:
 228                 folder_item_change_type(folder->queue, F_NORMAL);
 229                 folder->queue = item;
 230                 break;
 231         case F_DRAFT:
 232                 folder_item_change_type(folder->draft, F_NORMAL);
 233                 folder->draft = item;
 234                 break;
 235         case F_TRASH:
 236                 folder_item_change_type(folder->trash, F_NORMAL);
 237                 folder->trash = item;
 238                 break;
 239         case F_NORMAL:
 240         default:
 241                 break;
 242         }
 243         /* set new type for current folder and sons */
 244         item->stype = newtype;
 245         folder_func_to_all_folders(reset_parent_type, NULL);
 246
 247         hookdata.folder = folder;
 248         hookdata.update_flags = FOLDER_TREE_CHANGED;
 249         hookdata.item = NULL;
 250         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 251 }
 252
 253 void folder_destroy(Folder *folder)
 254 {
 255         g_return_if_fail(folder != NULL);
 256         g_return_if_fail(folder->klass->destroy_folder != NULL);
 257
 258         folder_remove(folder);
 259
 260         folder_tree_destroy(folder);
 261
 262         folder->klass->destroy_folder(folder);
 263
 264         g_free(folder->name);
 265         g_free(folder);
 266 }
 267
 268 void folder_set_xml(Folder *folder, XMLTag *tag)
 269 {
 270         GList *cur;
 271         FolderItem *rootitem = NULL;
 272
 273         if ((folder->node != NULL) && (folder->node->data != NULL))
 274                 rootitem = (FolderItem *) folder->node->data;
 275
 276         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 277                 XMLAttr *attr = (XMLAttr *) cur->data;
 278
 279                 if (!attr || !attr->name || !attr->value) continue;
 280                 if (!strcmp(attr->name, "name")) {
 281                         g_free(folder->name);
 282                         folder->name = g_strdup(attr->value);
 283                         if (rootitem != NULL) {
 284                                 g_free(rootitem->name);
 285                                 rootitem->name = g_strdup(attr->value);
 286                         }
 287                 } else if (!strcmp(attr->name, "account_id")) {
 288                         PrefsAccount *account;
 289
 290                         account = account_find_from_id(atoi(attr->value));
 291                         if (!account)
 292                                 g_warning("account_id: %s not found\n", attr->value);
 293                         else {
 294                                 folder->account = account;
 295                                 account->folder = folder;
 296                         }
 297                 } else if (!strcmp(attr->name, "collapsed")) {
 298                         if (rootitem != NULL)
 299                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 300                 } else if (!strcmp(attr->name, "sort")) {
 301                         folder->sort = atoi(attr->value);
 302                 }
 303         }
 304 }
 305
 306 XMLTag *folder_get_xml(Folder *folder)
 307 {
 308         XMLTag *tag;
 309
 310         tag = xml_tag_new("folder");
 311
 312         if (folder->name)
 313                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
 314         if (folder->account)
 315                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
 316         if (folder->node && folder->node->data) {
 317                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 318
 319                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
 320         }
 321         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
 322
 323         return tag;
 324 }
 325
 326 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 327 {
 328         FolderItem *item = NULL;
 329
 330         g_return_val_if_fail(folder != NULL, NULL);
 331
 332         if (folder->klass->item_new) {
 333                 item = folder->klass->item_new(folder);
 334         } else {
 335                 item = g_new0(FolderItem, 1);
 336         }
 337
 338         g_return_val_if_fail(item != NULL, NULL);
 339
 340         item->stype = F_NORMAL;
 341         item->name = g_strdup(name);
 342         item->path = g_strdup(path);
 343         item->mtime = 0;
 344         item->new_msgs = 0;
 345         item->unread_msgs = 0;
 346         item->unreadmarked_msgs = 0;
 347         item->marked_msgs = 0;
 348         item->total_msgs = 0;
 349         item->order = 0;
 350         item->last_num = -1;
 351         item->cache = NULL;
 352         item->no_sub = FALSE;
 353         item->no_select = FALSE;
 354         item->collapsed = FALSE;
 355         item->thread_collapsed = FALSE;
 356         item->threaded  = TRUE;
 357         item->ret_rcpt  = FALSE;
 358         item->opened    = FALSE;
 359         item->node = g_node_new(item);
 360         item->folder = NULL;
 361         item->account = NULL;
 362         item->apply_sub = FALSE;
 363         item->mark_queue = NULL;
 364         item->data = NULL;
 365         item->parent_stype = -1;
 366
 367         item->sort_key = SORT_BY_DATE;
 368         item->sort_type = SORT_ASCENDING;
 369
 370         item->prefs = folder_item_prefs_new();
 371
 372         return item;
 373 }
 374
 375 void folder_item_append(FolderItem *parent, FolderItem *item)
 376 {
 377         g_return_if_fail(parent != NULL);
 378         g_return_if_fail(parent->folder != NULL);
 379         g_return_if_fail(parent->node != NULL);
 380         g_return_if_fail(item != NULL);
 381
 382         item->folder = parent->folder;
 383         g_node_append(parent->node, item->node);
 384 }
 385
 386 void folder_item_remove(FolderItem *item)
 387 {
 388         GNode *node, *start_node;
 389         FolderUpdateData hookdata;
 390
 391         g_return_if_fail(item != NULL);
 392         g_return_if_fail(item->folder != NULL);
 393         g_return_if_fail(item->folder->node != NULL);
 394
 395         start_node = node = item->node;
 396
 397         node = item->folder->node;
 398
 399         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 400         node = node->children;
 401
 402         /* remove my children */
 403         while (node != NULL) {
 404                 if (node && node->data) {
 405                         FolderItem *sub_item = (FolderItem*) node->data;
 406                         node = node->next;
 407                         folder_item_remove(sub_item);
 408                 }
 409         }
 410
 411         /* remove myself */
 412         if (item->cache != NULL) {
 413                 msgcache_destroy(item->cache);
 414                 item->cache = NULL;
 415         }
 416
 417         hookdata.folder = item->folder;
 418         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 419         hookdata.item = item;
 420         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 421
 422         node = start_node;
 423
 424         if (item->folder->node == node)
 425                 item->folder->node = NULL;
 426
 427         folder_item_destroy(item);
 428
 429         g_node_destroy(node);
 430 }
 431
 432 void folder_item_remove_children(FolderItem *item)
 433 {
 434         GNode *node, *next;
 435
 436         g_return_if_fail(item != NULL);
 437         g_return_if_fail(item->folder != NULL);
 438         g_return_if_fail(item->node != NULL);
 439
 440         node = item->node->children;
 441         while (node != NULL) {
 442                 next = node->next;
 443                 folder_item_remove(FOLDER_ITEM(node->data));
 444                 node = next;
 445         }
 446 }
 447
 448 void folder_item_destroy(FolderItem *item)
 449 {
 450         Folder *folder;
 451
 452         g_return_if_fail(item != NULL);
 453
 454         folder = item->folder;
 455         if (folder) {
 456                 if (folder->inbox == item)
 457                         folder->inbox = NULL;
 458                 else if (folder->outbox == item)
 459                         folder->outbox = NULL;
 460                 else if (folder->draft == item)
 461                         folder->draft = NULL;
 462                 else if (folder->queue == item)
 463                         folder->queue = NULL;
 464                 else if (folder->trash == item)
 465                         folder->trash = NULL;
 466         }
 467
 468         if (item->cache)
 469                 folder_item_free_cache(item, TRUE);
 470         if (item->prefs)
 471                 folder_item_prefs_free(item->prefs);
 472         g_free(item->name);
 473         g_free(item->path);
 474
 475         if (item->folder != NULL) {
 476                 if(item->folder->klass->item_destroy) {
 477                         item->folder->klass->item_destroy(item->folder, item);
 478                 } else {
 479                         g_free(item);
 480                 }
 481         }
 482 }
 483
 484 FolderItem *folder_item_parent(FolderItem *item)
 485 {
 486         g_return_val_if_fail(item != NULL, NULL);
 487         g_return_val_if_fail(item->node != NULL, NULL);
 488
 489         if (item->node->parent == NULL)
 490                 return NULL;
 491         return (FolderItem *) item->node->parent->data;
 492 }
 493
 494 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 495 {
 496         GList *cur;
 497
 498         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 499                 XMLAttr *attr = (XMLAttr *) cur->data;
 500
 501                 if (!attr || !attr->name || !attr->value) continue;
 502                 if (!strcmp(attr->name, "type")) {
 503                         if (!g_ascii_strcasecmp(attr->value, "normal"))
 504                                 item->stype = F_NORMAL;
 505                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
 506                                 item->stype = F_INBOX;
 507                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
 508                                 item->stype = F_OUTBOX;
 509                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
 510                                 item->stype = F_DRAFT;
 511                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
 512                                 item->stype = F_QUEUE;
 513                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
 514                                 item->stype = F_TRASH;
 515                 } else if (!strcmp(attr->name, "name")) {
 516                         g_free(item->name);
 517                         item->name = g_strdup(attr->value);
 518                 } else if (!strcmp(attr->name, "path")) {
 519                         g_free(item->path);
 520                         item->path = g_strdup(attr->value);
 521                 } else if (!strcmp(attr->name, "mtime"))
 522                         item->mtime = strtoul(attr->value, NULL, 10);
 523                 else if (!strcmp(attr->name, "new"))
 524                         item->new_msgs = atoi(attr->value);
 525                 else if (!strcmp(attr->name, "unread"))
 526                         item->unread_msgs = atoi(attr->value);
 527                 else if (!strcmp(attr->name, "unreadmarked"))
 528                         item->unreadmarked_msgs = atoi(attr->value);
 529                 else if (!strcmp(attr->name, "marked"))
 530                         item->marked_msgs = atoi(attr->value);
 531                 else if (!strcmp(attr->name, "order"))
 532                         item->order = atoi(attr->value);
 533                 else if (!strcmp(attr->name, "total"))
 534                         item->total_msgs = atoi(attr->value);
 535                 else if (!strcmp(attr->name, "no_sub"))
 536                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 537                 else if (!strcmp(attr->name, "no_select"))
 538                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 539                 else if (!strcmp(attr->name, "collapsed"))
 540                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 541                 else if (!strcmp(attr->name, "thread_collapsed"))
 542                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 543                 else if (!strcmp(attr->name, "threaded"))
 544                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 545                 else if (!strcmp(attr->name, "hidereadmsgs"))
 546                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 547                 else if (!strcmp(attr->name, "reqretrcpt"))
 548                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 549                 else if (!strcmp(attr->name, "sort_key")) {
 550                         if (!strcmp(attr->value, "none"))
 551                                 item->sort_key = SORT_BY_NONE;
 552                         else if (!strcmp(attr->value, "number"))
 553                                 item->sort_key = SORT_BY_NUMBER;
 554                         else if (!strcmp(attr->value, "size"))
 555                                 item->sort_key = SORT_BY_SIZE;
 556                         else if (!strcmp(attr->value, "date"))
 557                                 item->sort_key = SORT_BY_DATE;
 558                         else if (!strcmp(attr->value, "from"))
 559                                 item->sort_key = SORT_BY_FROM;
 560                         else if (!strcmp(attr->value, "subject"))
 561                                 item->sort_key = SORT_BY_SUBJECT;
 562                         else if (!strcmp(attr->value, "score"))
 563                                 item->sort_key = SORT_BY_SCORE;
 564                         else if (!strcmp(attr->value, "label"))
 565                                 item->sort_key = SORT_BY_LABEL;
 566                         else if (!strcmp(attr->value, "mark"))
 567                                 item->sort_key = SORT_BY_MARK;
 568                         else if (!strcmp(attr->value, "unread"))
 569                                 item->sort_key = SORT_BY_STATUS;
 570                         else if (!strcmp(attr->value, "mime"))
 571                                 item->sort_key = SORT_BY_MIME;
 572                         else if (!strcmp(attr->value, "to"))
 573                                 item->sort_key = SORT_BY_TO;
 574                         else if (!strcmp(attr->value, "locked"))
 575                                 item->sort_key = SORT_BY_LOCKED;
 576                 } else if (!strcmp(attr->name, "sort_type")) {
 577                         if (!strcmp(attr->value, "ascending"))
 578                                 item->sort_type = SORT_ASCENDING;
 579                         else
 580                                 item->sort_type = SORT_DESCENDING;
 581                 } else if (!strcmp(attr->name, "account_id")) {
 582                         PrefsAccount *account;
 583
 584                         account = account_find_from_id(atoi(attr->value));
 585                         if (!account)
 586                                 g_warning("account_id: %s not found\n", attr->value);
 587                         else
 588                                 item->account = account;
 589                 } else if (!strcmp(attr->name, "apply_sub"))
 590                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 591         }
 592 }
 593
 594 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 595 {
 596         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 597                                                  "draft", "queue", "trash"};
 598         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 599                                         "from", "subject", "score", "label",
 600                                         "mark", "unread", "mime", "to",
 601                                         "locked"};
 602         XMLTag *tag;
 603         gchar *value;
 604
 605         tag = xml_tag_new("folderitem");
 606
 607         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
 608         if (item->name)
 609                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
 610         if (item->path)
 611                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
 612         if (item->no_sub)
 613                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
 614         if (item->no_select)
 615                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
 616         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
 617         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
 618         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
 619         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
 620         if (item->ret_rcpt)
 621                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
 622
 623         if (item->sort_key != SORT_BY_NONE) {
 624                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
 625                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 626         }
 627
 628         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
 629         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
 630         g_free(value);
 631         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
 632         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
 633         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
 634         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
 635         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
 636         xml_tag_add_attr(tag, xml_attr_new_int("order", item->order));
 637
 638         if (item->account)
 639                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
 640         if (item->apply_sub)
 641                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
 642
 643         return tag;
 644 }
 645
 646 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 647 {
 648         g_return_if_fail(folder != NULL);
 649
 650         folder->ui_func = func;
 651         folder->ui_func_data = data;
 652 }
 653
 654 void folder_set_name(Folder *folder, const gchar *name)
 655 {
 656         g_return_if_fail(folder != NULL);
 657
 658         g_free(folder->name);
 659         folder->name = name ? g_strdup(name) : NULL;
 660         if (folder->node && folder->node->data) {
 661                 FolderItem *item = (FolderItem *)folder->node->data;
 662
 663                 g_free(item->name);
 664                 item->name = name ? g_strdup(name) : NULL;
 665         }
 666 }
 667
 668 void folder_set_sort(Folder *folder, guint sort)
 669 {
 670         g_return_if_fail(folder != NULL);
 671
 672         if (folder->sort != sort) {
 673                 folder_remove(folder);
 674                 folder->sort = sort;
 675                 folder_add(folder);
 676         }
 677 }
 678
 679 static gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 680         FolderItem *item = (FolderItem *) node->data;
 681
 682         folder_item_destroy(item);
 683         return FALSE;
 684 }
 685
 686 void folder_tree_destroy(Folder *folder)
 687 {
 688         GNode *node;
 689
 690         g_return_if_fail(folder != NULL);
 691
 692         node = folder->node;
 693
 694         prefs_filtering_clear_folder(folder);
 695
 696         if (node != NULL) {
 697                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 698                                 folder_tree_destroy_func, NULL);
 699                 g_node_destroy(node);
 700                 folder->node = NULL;
 701         }
 702 }
 703
 704 void folder_add(Folder *folder)
 705 {
 706         Folder *cur_folder;
 707         GList *cur;
 708         gint i;
 709         FolderUpdateData hookdata;
 710
 711         g_return_if_fail(folder != NULL);
 712
 713         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 714                 cur_folder = FOLDER(cur->data);
 715                 if (cur_folder->sort < folder->sort)
 716                         break;
 717         }
 718
 719         folder_list = g_list_insert(folder_list, folder, i);
 720
 721         hookdata.folder = folder;
 722         hookdata.update_flags = FOLDER_ADD_FOLDER;
 723         hookdata.item = NULL;
 724         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 725 }
 726
 727 void folder_remove(Folder *folder)
 728 {
 729         FolderUpdateData hookdata;
 730
 731         g_return_if_fail(folder != NULL);
 732
 733         folder_list = g_list_remove(folder_list, folder);
 734
 735         hookdata.folder = folder;
 736         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
 737         hookdata.item = NULL;
 738         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 739 }
 740
 741 GList *folder_get_list(void)
 742 {
 743         return folder_list;
 744 }
 745
 746 gint folder_read_list(void)
 747 {
 748         GNode *node, *cur;
 749         XMLNode *xmlnode;
 750         gchar *path;
 751
 752         path = folder_get_list_path();
 753         if (!is_file_exist(path)) return -1;
 754         node = xml_parse_file(path);
 755         if (!node) return -1;
 756
 757         xmlnode = node->data;
 758         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 759                 g_warning("wrong folder list\n");
 760                 xml_free_tree(node);
 761                 return -1;
 762         }
 763
 764         cur = node->children;
 765         while (cur != NULL) {
 766                 Folder *folder;
 767
 768                 folder = folder_get_from_xml(cur);
 769                 if (folder != NULL)
 770                         folder_add(folder);
 771                 else
 772                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 773                                 (gpointer) xml_copy_tree(cur));
 774                 cur = cur->next;
 775         }
 776
 777         xml_free_tree(node);
 778         if (folder_list || folder_unloaded_list)
 779                 return 0;
 780         else
 781                 return -1;
 782 }
 783
 784 void folder_write_list(void)
 785 {
 786         GList *list;
 787         GSList *slist;
 788         Folder *folder;
 789         gchar *path;
 790         PrefFile *pfile;
 791         GNode *rootnode;
 792         XMLNode *xmlnode;
 793         XMLTag *tag;
 794
 795         path = folder_get_list_path();
 796         if ((pfile = prefs_write_open(path)) == NULL) return;
 797
 798         if (xml_file_put_xml_decl(pfile->fp) < 0) {
 799                 prefs_file_close_revert(pfile);
 800                 g_warning("failed to start write folder list.\n");
 801                 return;
 802         }
 803         tag = xml_tag_new("folderlist");
 804
 805         xmlnode = xml_node_new(tag, NULL);
 806
 807         rootnode = g_node_new(xmlnode);
 808
 809         for (list = folder_list; list != NULL; list = list->next) {
 810                 GNode *node;
 811
 812                 folder = list->data;
 813                 node = folder_get_xml_node(folder);
 814                 if (node != NULL)
 815                         g_node_append(rootnode, node);
 816         }
 817
 818         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 819                 GNode *node = (GNode *) slist->data;
 820
 821                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
 822         }
 823
 824         if (xml_write_tree(rootnode, pfile->fp) < 0) {
 825                 prefs_file_close_revert(pfile);
 826                 g_warning("failed to write folder list.\n");
 827         } else if (prefs_file_close(pfile) < 0) {
 828                 g_warning("failed to write folder list.\n");
 829         }
 830         xml_free_tree(rootnode);
 831 }
 832
 833 static gboolean folder_scan_tree_func(GNode *node, gpointer data)
 834 {
 835         GHashTable *pptable = (GHashTable *)data;
 836         FolderItem *item = (FolderItem *)node->data;
 837
 838         folder_item_restore_persist_prefs(item, pptable);
 839         folder_item_scan_full(item, FALSE);
 840
 841         return FALSE;
 842 }
 843
 844 void folder_scan_tree(Folder *folder, gboolean rebuild)
 845 {
 846         GHashTable *pptable;
 847         FolderUpdateData hookdata;
 848         Folder *old_folder = folder;
 849
 850         if (!folder->klass->scan_tree)
 851                 return;
 852
 853         pptable = folder_persist_prefs_new(folder);
 854
 855         if (rebuild)
 856                 folder_remove(folder);
 857
 858         if (folder->klass->scan_tree(folder) < 0) {
 859                 if (rebuild)
 860                         folder_add(old_folder);
 861                 return;
 862         } else if (rebuild)
 863                 folder_add(folder);
 864
 865         hookdata.folder = folder;
 866         hookdata.update_flags = FOLDER_TREE_CHANGED;
 867         hookdata.item = NULL;
 868         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 869
 870         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 871         folder_persist_prefs_free(pptable);
 872
 873         prefs_matcher_read_config();
 874
 875         folder_write_list();
 876 }
 877
 878 static gboolean folder_restore_prefs_func(GNode *node, gpointer data)
 879 {
 880         GHashTable *pptable = (GHashTable *)data;
 881         FolderItem *item = (FolderItem *)node->data;
 882
 883         folder_item_restore_persist_prefs(item, pptable);
 884
 885         return FALSE;
 886 }
 887
 888 void folder_fast_scan_tree(Folder *folder)
 889 {
 890         GHashTable *pptable;
 891         FolderUpdateData hookdata;
 892
 893         if (!folder->klass->scan_tree)
 894                 return;
 895
 896         pptable = folder_persist_prefs_new(folder);
 897
 898         if (folder->klass->scan_tree(folder) < 0) {
 899                 return;
 900         }
 901
 902         hookdata.folder = folder;
 903         hookdata.update_flags = FOLDER_TREE_CHANGED;
 904         hookdata.item = NULL;
 905         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 906
 907         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_restore_prefs_func, pptable);
 908         folder_persist_prefs_free(pptable);
 909
 910         prefs_matcher_read_config();
 911
 912         folder_write_list();
 913 }
 914
 915 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 916 {
 917         FolderItem *new_item;
 918
 919         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 920         if (new_item) {
 921                 FolderUpdateData hookdata;
 922
 923                 new_item->cache = msgcache_new();
 924
 925                 hookdata.folder = new_item->folder;
 926                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
 927                 hookdata.item = new_item;
 928                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 929         }
 930
 931         return new_item;
 932 }
 933
 934 gint folder_item_rename(FolderItem *item, gchar *newname)
 935 {
 936         gint retval;
 937
 938         g_return_val_if_fail(item != NULL, -1);
 939         g_return_val_if_fail(newname != NULL, -1);
 940
 941         retval = item->folder->klass->rename_folder(item->folder, item, newname);
 942
 943         if (retval >= 0) {
 944                 FolderItemUpdateData hookdata;
 945                 FolderUpdateData hookdata2;
 946
 947                 hookdata.item = item;
 948                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
 949                 hookdata.msg = NULL;
 950                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
 951
 952                 hookdata2.folder = item->folder;
 953                 hookdata2.item = item;
 954                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
 955                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
 956         }
 957
 958         return retval;
 959 }
 960
 961 struct TotalMsgCount
 962 {
 963         guint new_msgs;
 964         guint unread_msgs;
 965         guint unreadmarked_msgs;
 966         guint marked_msgs;
 967         guint total_msgs;
 968 };
 969
 970 struct FuncToAllFoldersData
 971 {
 972         FolderItemFunc  function;
 973         gpointer        data;
 974 };
 975
 976 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
 977 {
 978         FolderItem *item;
 979         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
 980
 981         g_return_val_if_fail(node->data != NULL, FALSE);
 982
 983         item = FOLDER_ITEM(node->data);
 984         g_return_val_if_fail(item != NULL, FALSE);
 985
 986         function_data->function(item, function_data->data);
 987
 988         return FALSE;
 989 }
 990
 991 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
 992 {
 993         GList *list;
 994         Folder *folder;
 995         struct FuncToAllFoldersData function_data;
 996
 997         function_data.function = function;
 998         function_data.data = data;
 999
1000         for (list = folder_list; list != NULL; list = list->next) {
1001                 folder = FOLDER(list->data);
1002                 if (folder->node)
1003                         g_node_traverse(folder->node, G_PRE_ORDER,
1004                                         G_TRAVERSE_ALL, -1,
1005                                         folder_func_to_all_folders_func,
1006                                         &function_data);
1007         }
1008 }
1009
1010 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
1011 {
1012         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
1013
1014         count->new_msgs += item->new_msgs;
1015         count->unread_msgs += item->unread_msgs;
1016         count->unreadmarked_msgs += item->unreadmarked_msgs;
1017         count->marked_msgs += item->marked_msgs;
1018         count->total_msgs += item->total_msgs;
1019 }
1020
1021 struct TotalMsgStatus
1022 {
1023         guint new;
1024         guint unread;
1025         guint total;
1026         GString *str;
1027 };
1028
1029 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
1030 {
1031         FolderItem *item;
1032         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
1033         gchar *id;
1034
1035         g_return_val_if_fail(node->data != NULL, FALSE);
1036
1037         item = FOLDER_ITEM(node->data);
1038
1039         if (!item->path) return FALSE;
1040
1041         status->new += item->new_msgs;
1042         status->unread += item->unread_msgs;
1043         status->total += item->total_msgs;
1044
1045         if (status->str) {
1046                 id = folder_item_get_identifier(item);
1047                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
1048                                   item->new_msgs, item->unread_msgs,
1049                                   item->total_msgs, id);
1050                 g_free(id);
1051         }
1052
1053         return FALSE;
1054  }
1055
1056 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
1057                                        guint *total)
1058 {
1059         GList *list;
1060         Folder *folder;
1061         struct TotalMsgStatus status;
1062
1063         status.new = status.unread = status.total = 0;
1064         status.str = str;
1065
1066         debug_print("Counting total number of messages...\n");
1067
1068         for (list = folder_list; list != NULL; list = list->next) {
1069                 folder = FOLDER(list->data);
1070                 if (folder->node)
1071                         g_node_traverse(folder->node, G_PRE_ORDER,
1072                                         G_TRAVERSE_ALL, -1,
1073                                         folder_get_status_full_all_func,
1074                                         &status);
1075         }
1076
1077         *new = status.new;
1078         *unread = status.unread;
1079         *total = status.total;
1080 }
1081
1082 gchar *folder_get_status(GPtrArray *folders, gboolean full)
1083 {
1084         guint new, unread, total;
1085         GString *str;
1086         gint i;
1087         gchar *ret;
1088
1089         new = unread = total = 0;
1090
1091         str = g_string_new(NULL);
1092
1093         if (folders) {
1094                 for (i = 0; i < folders->len; i++) {
1095                         FolderItem *item;
1096
1097                         item = g_ptr_array_index(folders, i);
1098                         new += item->new_msgs;
1099                         unread += item->unread_msgs;
1100                         total += item->total_msgs;
1101
1102                         if (full) {
1103                                 gchar *id;
1104
1105                                 id = folder_item_get_identifier(item);
1106                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1107                                                   item->new_msgs, item->unread_msgs,
1108                                                   item->total_msgs, id);
1109                                 g_free(id);
1110                         }
1111                 }
1112         } else {
1113                 folder_get_status_full_all(full ? str : NULL,
1114                                            &new, &unread, &total);
1115         }
1116
1117         if (full)
1118                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1119         else
1120                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1121
1122         ret = str->str;
1123         g_string_free(str, FALSE);
1124
1125         return ret;
1126 }
1127
1128 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs,
1129                              guint *unreadmarked_msgs, guint *marked_msgs,
1130                              guint *total_msgs)
1131 {
1132         struct TotalMsgCount count;
1133
1134         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = count.total_msgs = 0;
1135
1136         debug_print("Counting total number of messages...\n");
1137
1138         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1139
1140         *new_msgs = count.new_msgs;
1141         *unread_msgs = count.unread_msgs;
1142         *unreadmarked_msgs = count.unreadmarked_msgs;
1143         *marked_msgs = count.marked_msgs;
1144         *total_msgs = count.total_msgs;
1145 }
1146
1147 Folder *folder_find_from_path(const gchar *path)
1148 {
1149         GList *list;
1150         Folder *folder;
1151
1152         for (list = folder_list; list != NULL; list = list->next) {
1153                 folder = list->data;
1154                 if ((FOLDER_TYPE(folder) == F_MH ||
1155                      FOLDER_TYPE(folder) == F_MBOX) &&
1156                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1157                         return folder;
1158         }
1159
1160         return NULL;
1161 }
1162
1163 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1164 {
1165         GList *list;
1166         Folder *folder;
1167
1168         for (list = folder_list; list != NULL; list = list->next) {
1169                 folder = list->data;
1170                 if (folder->klass == klass &&
1171                     strcmp2(name, folder->name) == 0)
1172                         return folder;
1173         }
1174
1175         return NULL;
1176 }
1177
1178 static gboolean folder_item_find_func(GNode *node, gpointer data)
1179 {
1180         FolderItem *item = node->data;
1181         gpointer *d = data;
1182         const gchar *path = d[0];
1183
1184         if (path_cmp(path, item->path) != 0)
1185                 return FALSE;
1186
1187         d[1] = item;
1188
1189         return TRUE;
1190 }
1191
1192 FolderItem *folder_find_item_from_path(const gchar *path)
1193 {
1194         Folder *folder;
1195         gpointer d[2];
1196         GList *list = folder_get_list();
1197
1198         folder = list ? list->data:NULL;
1199
1200         g_return_val_if_fail(folder != NULL, NULL);
1201
1202         d[0] = (gpointer)path;
1203         d[1] = NULL;
1204         while (d[1] == NULL && list) {
1205                 folder = FOLDER(list->data);
1206                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1207                         folder_item_find_func, d);
1208                 list = list->next;
1209         }
1210         return d[1];
1211 }
1212
1213 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1214 {
1215         GNode *node;
1216         FolderItem *child;
1217
1218         for (node = item->node->children; node != NULL; node = node->next) {
1219                 gchar *base;
1220                 child = FOLDER_ITEM(node->data);
1221                 base = g_path_get_basename(child->path);
1222                 if (strcmp2(base, name) == 0) {
1223                         g_free(base);
1224                         return child;
1225                 }
1226                 g_free(base);
1227         }
1228
1229         return NULL;
1230 }
1231
1232 FolderClass *folder_get_class_from_string(const gchar *str)
1233 {
1234         GSList *classlist;
1235
1236         classlist = folder_get_class_list();
1237         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1238                 FolderClass *class = (FolderClass *) classlist->data;
1239                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1240                         return class;
1241         }
1242
1243         return NULL;
1244 }
1245
1246 static gchar *folder_get_identifier(Folder *folder)
1247 {
1248         gchar *type_str;
1249
1250         g_return_val_if_fail(folder != NULL, NULL);
1251
1252         type_str = folder->klass->idstr;
1253         return g_strconcat("#", type_str, "/", folder->name, NULL);
1254 }
1255
1256 gchar *folder_item_get_identifier(FolderItem *item)
1257 {
1258         gchar *id = NULL;
1259         gchar *folder_id = NULL;
1260
1261         g_return_val_if_fail(item != NULL, NULL);
1262
1263         if (item->path == NULL)
1264                 return NULL;
1265
1266         folder_id = folder_get_identifier(item->folder);
1267         id = g_strconcat(folder_id, "/", item->path, NULL);
1268         g_free(folder_id);
1269
1270         return id;
1271 }
1272
1273 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1274 {
1275         Folder *folder;
1276         gpointer d[2];
1277         gchar *str;
1278         gchar *p;
1279         gchar *name;
1280         gchar *path;
1281         FolderClass *class;
1282
1283         g_return_val_if_fail(identifier != NULL, NULL);
1284
1285         if (*identifier != '#')
1286                 return folder_find_item_from_path(identifier);
1287
1288         Xstrdup_a(str, identifier, return NULL);
1289
1290         p = strchr(str, '/');
1291         if (!p)
1292                 return folder_find_item_from_path(identifier);
1293         *p = '\0';
1294         p++;
1295         class = folder_get_class_from_string(&str[1]);
1296         if (class == NULL)
1297                 return folder_find_item_from_path(identifier);
1298
1299         name = p;
1300         p = strchr(p, '/');
1301         if (!p)
1302                 return folder_find_item_from_path(identifier);
1303         *p = '\0';
1304         p++;
1305
1306         folder = folder_find_from_name(name, class);
1307         if (!folder)
1308                 return folder_find_item_from_path(identifier);
1309
1310         path = p;
1311
1312         d[0] = (gpointer)path;
1313         d[1] = NULL;
1314         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1315                         folder_item_find_func, d);
1316         return d[1];
1317 }
1318
1319 /**
1320  * Get a displayable name for a FolderItem
1321  *
1322  * \param item FolderItem for that a name should be created
1323  * \return Displayable name for item, returned string has to
1324  *         be freed
1325  */
1326 gchar *folder_item_get_name(FolderItem *item)
1327 {
1328         gchar *name = NULL;
1329
1330         g_return_val_if_fail(item != NULL, g_strdup(""));
1331
1332         switch (item->stype) {
1333         case F_INBOX:
1334                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1335                                 item->name);
1336                 break;
1337         case F_OUTBOX:
1338                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1339                                 item->name);
1340                 break;
1341         case F_QUEUE:
1342                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1343                                 item->name);
1344                 break;
1345         case F_TRASH:
1346                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1347                                 item->name);
1348                 break;
1349         case F_DRAFT:
1350                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1351                                 item->name);
1352                 break;
1353         default:
1354                 break;
1355         }
1356
1357         if (name == NULL) {
1358                 /*
1359                  * should probably be done by a virtual function,
1360                  * the folder knows the ui string and how to abbrev
1361                 */
1362                 if (folder_item_parent(item) == NULL) {
1363                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1364                 } else {
1365                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1366                             item->path && !strcmp2(item->name, item->path))
1367                                 name = get_abbrev_newsgroup_name
1368                                         (item->path,
1369                                          prefs_common.ng_abbrev_len);
1370                         else
1371                                 name = g_strdup(item->name);
1372                 }
1373         }
1374
1375         if (name == NULL)
1376                 name = g_strdup("");
1377
1378         return name;
1379 }
1380
1381 gboolean folder_have_mailbox (void)
1382 {
1383         GList *cur;
1384         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1385                 Folder *folder = FOLDER(cur->data);
1386                 if (folder->inbox && folder->outbox)
1387                         return TRUE;
1388         }
1389         return FALSE;
1390 }
1391
1392 FolderItem *folder_get_default_inbox(void)
1393 {
1394         GList *flist;
1395
1396         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1397                 Folder * folder = FOLDER(flist->data);
1398
1399                 if (folder == NULL)
1400                         continue;
1401                 if (folder->inbox == NULL)
1402                         continue;
1403                 if (folder->klass->type == F_UNKNOWN)
1404                         continue;
1405
1406                 return folder->inbox;
1407         }
1408
1409         return NULL;
1410 }
1411
1412 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1413 {
1414         GList *flist;
1415
1416         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1417                 Folder * folder = FOLDER(flist->data);
1418
1419                 if (folder == NULL)
1420                         continue;
1421                 if (folder->inbox == NULL)
1422                         continue;
1423                 if (folder->klass->type != type)
1424                         continue;
1425
1426                 return folder->inbox;
1427         }
1428
1429         return NULL;
1430 }
1431
1432 FolderItem *folder_get_default_outbox(void)
1433 {
1434         GList *flist;
1435
1436         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1437                 Folder * folder = FOLDER(flist->data);
1438
1439                 if (folder == NULL)
1440                         continue;
1441                 if (folder->outbox == NULL)
1442                         continue;
1443                 if (folder->klass->type == F_UNKNOWN)
1444                         continue;
1445
1446                 return folder->outbox;
1447         }
1448
1449         return NULL;
1450 }
1451
1452 FolderItem *folder_get_default_draft(void)
1453 {
1454         GList *flist;
1455
1456         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1457                 Folder * folder = FOLDER(flist->data);
1458
1459                 if (folder == NULL)
1460                         continue;
1461                 if (folder->draft == NULL)
1462                         continue;
1463                 if (folder->klass->type == F_UNKNOWN)
1464                         continue;
1465
1466                 return folder->draft;
1467         }
1468
1469         return NULL;
1470 }
1471
1472 FolderItem *folder_get_default_queue(void)
1473 {
1474         GList *flist;
1475
1476         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1477                 Folder * folder = FOLDER(flist->data);
1478
1479                 if (folder == NULL)
1480                         continue;
1481                 if (folder->queue == NULL)
1482                         continue;
1483                 if (folder->klass->type == F_UNKNOWN)
1484                         continue;
1485
1486                 return folder->queue;
1487         }
1488
1489         return NULL;
1490 }
1491
1492 FolderItem *folder_get_default_trash(void)
1493 {
1494         GList *flist;
1495
1496         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1497                 Folder * folder = FOLDER(flist->data);
1498
1499                 if (folder == NULL)
1500                         continue;
1501                 if (folder->trash == NULL)
1502                         continue;
1503                 if (folder->klass->type == F_UNKNOWN)
1504                         continue;
1505
1506                 return folder->trash;
1507         }
1508
1509         return NULL;
1510 }
1511
1512 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1513 {                                                               \
1514         if (!folder->member) {                                  \
1515                 item = folder_item_new(folder, dir, dir);       \
1516                 item->stype = type;                             \
1517                 folder_item_append(rootitem, item);             \
1518                 folder->member = item;                          \
1519         }                                                       \
1520 }
1521
1522 void folder_set_missing_folders(void)
1523 {
1524         Folder *folder;
1525         FolderItem *rootitem;
1526         FolderItem *item;
1527         GList *list;
1528
1529         for (list = folder_list; list != NULL; list = list->next) {
1530                 folder = list->data;
1531                 if (FOLDER_TYPE(folder) != F_MH) continue;
1532                 rootitem = FOLDER_ITEM(folder->node->data);
1533                 g_return_if_fail(rootitem != NULL);
1534
1535                 if (folder->inbox && folder->outbox && folder->draft &&
1536                     folder->queue && folder->trash)
1537                         continue;
1538
1539                 if (folder->klass->create_tree(folder) < 0) {
1540                         g_warning("%s: can't create the folder tree.\n",
1541                                   LOCAL_FOLDER(folder)->rootpath);
1542                         continue;
1543                 }
1544
1545                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1546                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1547                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1548                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1549                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1550         }
1551 }
1552
1553 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1554 {
1555         FolderItem *item = node->data;
1556         PrefsAccount *account = data;
1557
1558         if (item->account == account)
1559                 item->account = NULL;
1560
1561         return FALSE;
1562 }
1563
1564 void folder_unref_account_all(PrefsAccount *account)
1565 {
1566         Folder *folder;
1567         GList *list;
1568
1569         if (!account) return;
1570
1571         for (list = folder_list; list != NULL; list = list->next) {
1572                 folder = list->data;
1573                 if (folder->account == account)
1574                         folder->account = NULL;
1575                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1576                                 folder_unref_account_func, account);
1577         }
1578 }
1579
1580 #undef CREATE_FOLDER_IF_NOT_EXIST
1581
1582 gchar *folder_item_get_path(FolderItem *item)
1583 {
1584         Folder *folder;
1585
1586         g_return_val_if_fail(item != NULL, NULL);
1587         folder = item->folder;
1588         g_return_val_if_fail(folder != NULL, NULL);
1589
1590         return folder->klass->item_get_path(folder, item);
1591 }
1592
1593 void folder_item_set_default_flags(FolderItem *dest, MsgFlags *flags)
1594 {
1595         if (!(folder_has_parent_of_type(dest, F_OUTBOX) ||
1596               folder_has_parent_of_type(dest, F_QUEUE)  ||
1597               folder_has_parent_of_type(dest, F_DRAFT) ||
1598               folder_has_parent_of_type(dest, F_TRASH))) {
1599                 flags->perm_flags = MSG_NEW|MSG_UNREAD;
1600         } else {
1601                 flags->perm_flags = 0;
1602         }
1603         if (FOLDER_TYPE(dest->folder) == F_MH) {
1604                 if (folder_has_parent_of_type(dest, F_QUEUE)) {
1605                         MSG_SET_TMP_FLAGS(*flags, MSG_QUEUED);
1606                 } else if (folder_has_parent_of_type(dest, F_DRAFT)) {
1607                         MSG_SET_TMP_FLAGS(*flags, MSG_DRAFT);
1608                 }
1609         }
1610 }
1611
1612 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1613 {
1614         MsgInfo *msginfo_a = (MsgInfo *) a;
1615         MsgInfo *msginfo_b = (MsgInfo *) b;
1616
1617         return (msginfo_a->msgnum - msginfo_b->msgnum);
1618 }
1619
1620 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1621 {
1622         guint gint_a = GPOINTER_TO_INT(a);
1623         guint gint_b = GPOINTER_TO_INT(b);
1624
1625         return (gint_a - gint_b);
1626 }
1627
1628 void folder_item_process_open (FolderItem *item,
1629                                  void (*before_proc_func)(gpointer data),
1630                                  void (*after_proc_func)(gpointer data),
1631                                  gpointer data)
1632 {
1633         gchar *buf;
1634         if (item == NULL)
1635                 return;
1636         if((item->folder->klass->scan_required != NULL) &&
1637            (item->folder->klass->scan_required(item->folder, item))) {
1638                 folder_item_scan_full(item, TRUE);
1639         } else {
1640                 folder_item_syncronize_flags(item);
1641         }
1642
1643         /* Processing */
1644         buf = g_strdup_printf(_("Processing (%s)...\n"),
1645                               item->path ? item->path : item->name);
1646         g_free(buf);
1647
1648         if (before_proc_func)
1649                 before_proc_func(data);
1650
1651         folder_item_apply_processing(item);
1652
1653         if (after_proc_func)
1654                 after_proc_func(data);
1655
1656         item->processing_pending = FALSE;
1657         return;
1658 }
1659
1660 gint folder_item_open(FolderItem *item)
1661 {
1662         START_TIMING("");
1663         if (item->no_select)
1664                 return -1;
1665
1666         if (item->scanning) {
1667                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
1668                 return -2;
1669         }
1670
1671         item->processing_pending = TRUE;
1672         folder_item_process_open (item, NULL, NULL, NULL);
1673
1674         item->opened = TRUE;
1675         END_TIMING();
1676         return 0;
1677 }
1678
1679 gint folder_item_close(FolderItem *item)
1680 {
1681         GSList *mlist, *cur;
1682         Folder *folder;
1683
1684         g_return_val_if_fail(item != NULL, -1);
1685
1686         if (item->no_select)
1687                 return -1;
1688
1689         if (item->new_msgs) {
1690                 folder_item_update_freeze();
1691                 mlist = folder_item_get_msg_list(item);
1692                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1693                         MsgInfo * msginfo;
1694
1695                         msginfo = (MsgInfo *) cur->data;
1696                         if (MSG_IS_NEW(msginfo->flags))
1697                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1698                         procmsg_msginfo_free(msginfo);
1699                 }
1700                 g_slist_free(mlist);
1701                 folder_item_update_thaw();
1702         }
1703
1704         folder_item_write_cache(item);
1705
1706         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1707
1708         item->opened = FALSE;
1709         folder = item->folder;
1710
1711         if (folder->klass->close == NULL)
1712                 return 0;
1713
1714         return folder->klass->close(folder, item);
1715 }
1716
1717 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
1718 {
1719         MsgInfoList *msglist = NULL;
1720         Folder *folder = item->folder;
1721         if (item->no_select)
1722                 return NULL;
1723
1724         if (folder->klass->get_msginfos != NULL)
1725                 msglist = folder->klass->get_msginfos(folder, item, numlist);
1726         else {
1727                 MsgNumberList *elem;
1728
1729                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
1730                         MsgInfo *msginfo;
1731                         guint num;
1732
1733                         num = GPOINTER_TO_INT(elem->data);
1734                         msginfo = folder->klass->get_msginfo(folder, item, num);
1735                         if (msginfo != NULL)
1736                                 msglist = g_slist_prepend(msglist, msginfo);
1737                 }
1738         }
1739
1740         return msglist;
1741 }
1742
1743 static MsgInfo *get_msginfo(FolderItem *item, guint num)
1744 {
1745         MsgNumberList numlist;
1746         MsgInfoList *msglist;
1747         MsgInfo *msginfo = NULL;
1748
1749         numlist.data = GINT_TO_POINTER(num);
1750         numlist.next = NULL;
1751         msglist = get_msginfos(item, &numlist);
1752         if (msglist != NULL)
1753                 msginfo = procmsg_msginfo_new_ref(msglist->data);
1754         procmsg_msg_list_free(msglist);
1755
1756         return msginfo;
1757 }
1758
1759 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1760 {
1761         GRelation *relation;
1762         gint ret = 0;
1763         GSList *cur;
1764
1765         if(msglist == NULL)
1766                 return 0;
1767         if(item->folder->klass->get_flags == NULL)
1768                 return 0;
1769         if (item->no_select)
1770                 return 0;
1771
1772         relation = g_relation_new(2);
1773         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1774         folder_item_set_batch(item, TRUE);
1775         if ((ret = item->folder->klass->get_flags(
1776             item->folder, item, msglist, relation)) == 0) {
1777                 GTuples *tuples;
1778                 MsgInfo *msginfo;
1779                 MsgPermFlags permflags = 0;
1780                 gboolean skip;
1781
1782                 folder_item_update_freeze();
1783                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1784                         msginfo = (MsgInfo *) cur->data;
1785
1786                         tuples = g_relation_select(relation, msginfo, 0);
1787                         skip = tuples->len < 1;
1788                         if (!skip)
1789                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1790                         g_tuples_destroy(tuples);
1791                         if (skip)
1792                                 continue;
1793
1794                         if (msginfo->flags.perm_flags != permflags) {
1795                                 procmsg_msginfo_change_flags(msginfo,
1796                                         permflags & ~msginfo->flags.perm_flags, 0,
1797                                         ~permflags & msginfo->flags.perm_flags, 0);
1798                         }
1799                 }
1800                 folder_item_update_thaw();
1801         }
1802         folder_item_set_batch(item, FALSE);
1803         g_relation_destroy(relation);
1804
1805         return ret;
1806 }
1807
1808 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1809 {
1810         Folder *folder;
1811         GSList *folder_list = NULL, *cache_list = NULL;
1812         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1813         GSList *exists_list = NULL, *elem;
1814         GSList *newmsg_list = NULL;
1815         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
1816         guint markedcnt = 0, unreadmarkedcnt = 0;
1817         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1818         gboolean update_flags = 0, old_uids_valid = FALSE;
1819         GHashTable *subject_table = NULL;
1820
1821         g_return_val_if_fail(item != NULL, -1);
1822         if (item->path == NULL) return -1;
1823
1824         folder = item->folder;
1825
1826         g_return_val_if_fail(folder != NULL, -1);
1827         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1828
1829         item->scanning = TRUE;
1830
1831         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
1832
1833         /* Get list of messages for folder and cache */
1834         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1835                 debug_print("Error fetching list of message numbers\n");
1836                 item->scanning = FALSE;
1837                 return(-1);
1838         }
1839
1840         if(prefs_common.thread_by_subject) {
1841                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
1842         }
1843
1844         if (old_uids_valid) {
1845                 if (!item->cache)
1846                         folder_item_read_cache(item);
1847                 cache_list = msgcache_get_msg_list(item->cache);
1848         } else {
1849                 if (item->cache)
1850                         msgcache_destroy(item->cache);
1851                 item->cache = msgcache_new();
1852                 cache_list = NULL;
1853         }
1854
1855         /* Sort both lists */
1856         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
1857         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
1858
1859         cache_list_cur = cache_list;
1860         folder_list_cur = folder_list;
1861
1862         if (cache_list_cur != NULL) {
1863                 GSList *cache_list_last;
1864
1865                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1866                 cache_list_last = g_slist_last(cache_list);
1867                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
1868         } else {
1869                 cache_cur_num = G_MAXINT;
1870                 cache_max_num = 0;
1871         }
1872
1873         if (folder_list_cur != NULL) {
1874                 GSList *folder_list_last;
1875
1876                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1877                 folder_list_last = g_slist_last(folder_list);
1878                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
1879         } else {
1880                 folder_cur_num = G_MAXINT;
1881                 folder_max_num = 0;
1882         }
1883
1884         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
1885                 /*
1886                  *  Message only exists in the folder
1887                  *  Remember message for fetching
1888                  */
1889                 if (folder_cur_num < cache_cur_num) {
1890                         gboolean add = FALSE;
1891
1892                         switch(FOLDER_TYPE(folder)) {
1893                                 case F_NEWS:
1894                                         if (folder_cur_num < cache_max_num)
1895                                                 break;
1896
1897                                         if (folder->account->max_articles == 0) {
1898                                                 add = TRUE;
1899                                         }
1900
1901                                         if (folder_max_num <= folder->account->max_articles) {
1902                                                 add = TRUE;
1903                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
1904                                                 add = TRUE;
1905                                         }
1906                                         break;
1907                                 default:
1908                                         add = TRUE;
1909                                         break;
1910                         }
1911
1912                         if (add) {
1913                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
1914                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
1915                         }
1916
1917                         /* Move to next folder number */
1918                         folder_list_cur = folder_list_cur->next;
1919
1920                         if (folder_list_cur != NULL)
1921                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1922                         else
1923                                 folder_cur_num = G_MAXINT;
1924
1925                         continue;
1926                 }
1927
1928                 /*
1929                  *  Message only exists in the cache
1930                  *  Remove the message from the cache
1931                  */
1932                 if (cache_cur_num < folder_cur_num) {
1933                         msgcache_remove_msg(item->cache, cache_cur_num);
1934                         debug_print("Removed message %d from cache.\n", cache_cur_num);
1935
1936                         /* Move to next cache number */
1937                         cache_list_cur = cache_list_cur->next;
1938
1939                         if (cache_list_cur != NULL)
1940                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1941                         else
1942                                 cache_cur_num = G_MAXINT;
1943
1944                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1945
1946                         continue;
1947                 }
1948
1949                 /*
1950                  *  Message number exists in folder and cache!
1951                  *  Check if the message has been modified
1952                  */
1953                 if (cache_cur_num == folder_cur_num) {
1954                         MsgInfo *msginfo;
1955
1956                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
1957                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
1958                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
1959                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
1960                                 procmsg_msginfo_free(msginfo);
1961
1962                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
1963                         } else {
1964                                 exists_list = g_slist_prepend(exists_list, msginfo);
1965
1966                                 if(prefs_common.thread_by_subject &&
1967                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
1968                                         !subject_table_lookup(subject_table, msginfo->subject)) {
1969                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
1970                                 }
1971                         }
1972
1973                         /* Move to next folder and cache number */
1974                         cache_list_cur = cache_list_cur->next;
1975                         folder_list_cur = folder_list_cur->next;
1976
1977                         if (cache_list_cur != NULL)
1978                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1979                         else
1980                                 cache_cur_num = G_MAXINT;
1981
1982                         if (folder_list_cur != NULL)
1983                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1984                         else
1985                                 folder_cur_num = G_MAXINT;
1986
1987                         continue;
1988                 }
1989         }
1990
1991         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
1992                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
1993
1994         g_slist_free(cache_list);
1995         g_slist_free(folder_list);
1996
1997         if (new_list != NULL) {
1998                 GSList *tmp_list = NULL;
1999                 newmsg_list = get_msginfos(item, new_list);
2000                 g_slist_free(new_list);
2001                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2002                 syncronize_flags(item, tmp_list);
2003                 g_slist_free(tmp_list);
2004         } else {
2005                 syncronize_flags(item, exists_list);
2006         }
2007
2008         folder_item_update_freeze();
2009         if (newmsg_list != NULL) {
2010                 GSList *elem, *to_filter = NULL;
2011                 gboolean do_filter = (filtering == TRUE) &&
2012                                         (item->stype == F_INBOX) &&
2013                                         (item->folder->account != NULL) &&
2014                                         (item->folder->account->filter_on_recv);
2015
2016                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2017                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2018
2019                         msgcache_add_msg(item->cache, msginfo);
2020                         if (!do_filter) {
2021                                 exists_list = g_slist_prepend(exists_list, msginfo);
2022
2023                                 if(prefs_common.thread_by_subject &&
2024                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2025                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2026                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2027                                 }
2028                         }
2029                 }
2030
2031                 if (do_filter) {
2032                         GSList *unfiltered;
2033                         procmsg_msglist_filter(newmsg_list, item->folder->account,
2034                                         &to_filter, &unfiltered,
2035                                         TRUE);
2036
2037                         filtering_move_and_copy_msgs(newmsg_list);
2038                         if (to_filter != NULL) {
2039                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2040                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2041                                         procmsg_msginfo_free(msginfo);
2042                                 }
2043                                 g_slist_free(to_filter);
2044                         }
2045                         if (unfiltered != NULL) {
2046                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2047                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2048                                         exists_list = g_slist_prepend(exists_list, msginfo);
2049
2050                                         if(prefs_common.thread_by_subject &&
2051                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2052                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2053                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2054                                         }
2055                                 }
2056                                 g_slist_free(unfiltered);
2057                         }
2058                         if (prefs_common.real_time_sync)
2059                                 folder_item_synchronise(item);
2060                 } else {
2061                         if (prefs_common.real_time_sync)
2062                                 folder_item_synchronise(item);
2063                 }
2064
2065                 g_slist_free(newmsg_list);
2066
2067                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2068         }
2069
2070         folder_item_set_batch(item, TRUE);
2071         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2072                 MsgInfo *msginfo, *parent_msginfo;
2073
2074                 msginfo = elem->data;
2075                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2076                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2077                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2078                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2079                 }
2080                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2081                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2082                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2083                 {
2084                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2085                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2086                                                 MSG_NEW | MSG_UNREAD, 0);
2087                         }
2088                 }
2089                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2090                      folder_has_parent_of_type(item, F_QUEUE)  ||
2091                      folder_has_parent_of_type(item, F_DRAFT)  ||
2092                      folder_has_parent_of_type(item, F_TRASH)) &&
2093                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2094                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2095                 if (MSG_IS_NEW(msginfo->flags))
2096                         newcnt++;
2097                 if (MSG_IS_UNREAD(msginfo->flags))
2098                         unreadcnt++;
2099                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2100                         unreadmarkedcnt++;
2101                 if (MSG_IS_MARKED(msginfo->flags))
2102                         markedcnt++;
2103
2104                 totalcnt++;
2105
2106                 procmsg_msginfo_free(msginfo);
2107         }
2108         folder_item_set_batch(item, FALSE);
2109         g_slist_free(exists_list);
2110
2111         if(prefs_common.thread_by_subject) {
2112                 g_hash_table_destroy(subject_table);
2113         }
2114
2115         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2116         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2117         ||  item->unreadmarked_msgs != unreadmarkedcnt) {
2118                 update_flags |= F_ITEM_UPDATE_CONTENT;
2119         }
2120
2121         item->new_msgs = newcnt;
2122         item->unread_msgs = unreadcnt;
2123         item->total_msgs = totalcnt;
2124         item->unreadmarked_msgs = unreadmarkedcnt;
2125         item->marked_msgs = markedcnt;
2126
2127         update_flags |= F_ITEM_UPDATE_MSGCNT;
2128
2129         folder_item_update(item, update_flags);
2130         folder_item_update_thaw();
2131
2132         item->scanning = FALSE;
2133
2134         return 0;
2135 }
2136
2137 gint folder_item_scan(FolderItem *item)
2138 {
2139         return folder_item_scan_full(item, TRUE);
2140 }
2141
2142 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
2143                                           gpointer data)
2144 {
2145         folder_item_scan(FOLDER_ITEM(key));
2146 }
2147
2148 void folder_item_scan_foreach(GHashTable *table)
2149 {
2150         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
2151 }
2152
2153 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2154 {
2155         gint *memusage = (gint *)data;
2156
2157         if (item->cache == NULL)
2158                 return;
2159
2160         *memusage += msgcache_get_memory_usage(item->cache);
2161 }
2162
2163 gint folder_item_syncronize_flags(FolderItem *item)
2164 {
2165         MsgInfoList *msglist = NULL;
2166         GSList *cur;
2167         gint ret = 0;
2168
2169         g_return_val_if_fail(item != NULL, -1);
2170         g_return_val_if_fail(item->folder != NULL, -1);
2171         g_return_val_if_fail(item->folder->klass != NULL, -1);
2172         if (item->no_select)
2173                 return -1;
2174
2175         item->scanning = TRUE;
2176
2177         if (item->cache == NULL)
2178                 folder_item_read_cache(item);
2179
2180         msglist = msgcache_get_msg_list(item->cache);
2181
2182         ret = syncronize_flags(item, msglist);
2183
2184         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
2185                 procmsg_msginfo_free((MsgInfo *) cur->data);
2186
2187         g_slist_free(msglist);
2188
2189         item->scanning = FALSE;
2190
2191         return ret;
2192 }
2193
2194 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2195 {
2196         FolderItem *fa = (FolderItem *)a;
2197         FolderItem *fb = (FolderItem *)b;
2198
2199         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2200 }
2201
2202 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2203 {
2204         GSList **folder_item_list = (GSList **)data;
2205         gint difftime, expiretime;
2206
2207         if (item->cache == NULL)
2208                 return;
2209
2210         if (item->opened > 0)
2211                 return;
2212
2213         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2214         expiretime = prefs_common.cache_min_keep_time * 60;
2215         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2216
2217         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2218                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2219         }
2220 }
2221
2222 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2223 {
2224         g_return_val_if_fail(item != NULL, TRUE);
2225
2226         if (item->cache == NULL)
2227                 return TRUE;
2228
2229         if (item->opened > 0 && !force)
2230                 return FALSE;
2231
2232         folder_item_write_cache(item);
2233         msgcache_destroy(item->cache);
2234         item->cache = NULL;
2235         return TRUE;
2236 }
2237
2238 void folder_clean_cache_memory_force(void)
2239 {
2240         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2241         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2242
2243         prefs_common.cache_max_mem_usage = 0;
2244         prefs_common.cache_min_keep_time = 0;
2245
2246         folder_clean_cache_memory(NULL);
2247
2248         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2249         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2250 }
2251
2252 void folder_clean_cache_memory(FolderItem *protected_item)
2253 {
2254         gint memusage = 0;
2255
2256         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2257         debug_print("Total cache memory usage: %d\n", memusage);
2258
2259         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2260                 GSList *folder_item_list = NULL, *listitem;
2261
2262                 debug_print("Trying to free cache memory\n");
2263
2264                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2265                 listitem = folder_item_list;
2266                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2267                         FolderItem *item = (FolderItem *)(listitem->data);
2268                         gint cache_size = 0;
2269                         if (item == protected_item) {
2270                                 listitem = listitem->next;
2271                                 continue;
2272                         }
2273                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2274                         cache_size = msgcache_get_memory_usage(item->cache);
2275                         if (folder_item_free_cache(item, FALSE))
2276                                 memusage -= cache_size;
2277
2278                         listitem = listitem->next;
2279                 }
2280                 g_slist_free(folder_item_list);
2281         }
2282 }
2283
2284 static void folder_item_read_cache(FolderItem *item)
2285 {
2286         gchar *cache_file, *mark_file;
2287         START_TIMING("");
2288         g_return_if_fail(item != NULL);
2289
2290         if (item->path != NULL) {
2291                 cache_file = folder_item_get_cache_file(item);
2292                 mark_file = folder_item_get_mark_file(item);
2293                 item->cache = msgcache_read_cache(item, cache_file);
2294                 if (!item->cache) {
2295                         MsgInfoList *list, *cur;
2296                         guint newcnt = 0, unreadcnt = 0;
2297                         guint markedcnt = 0, unreadmarkedcnt = 0;
2298                         MsgInfo *msginfo;
2299
2300                         item->cache = msgcache_new();
2301                         folder_item_scan_full(item, TRUE);
2302
2303                         msgcache_read_mark(item->cache, mark_file);
2304
2305                         list = msgcache_get_msg_list(item->cache);
2306                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2307                                 msginfo = cur->data;
2308
2309                                 if (MSG_IS_NEW(msginfo->flags))
2310                                         newcnt++;
2311                                 if (MSG_IS_UNREAD(msginfo->flags))
2312                                         unreadcnt++;
2313                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2314                                         unreadmarkedcnt++;
2315                                 if (MSG_IS_MARKED(msginfo->flags))
2316                                         markedcnt++;
2317                         }
2318                         item->new_msgs = newcnt;
2319                         item->unread_msgs = unreadcnt;
2320                         item->unreadmarked_msgs = unreadmarkedcnt;
2321                         item->marked_msgs = markedcnt;
2322                         procmsg_msg_list_free(list);
2323                 } else
2324                         msgcache_read_mark(item->cache, mark_file);
2325
2326                 g_free(cache_file);
2327                 g_free(mark_file);
2328         } else {
2329                 item->cache = msgcache_new();
2330         }
2331         END_TIMING();
2332         folder_clean_cache_memory(item);
2333 }
2334
2335 void folder_item_write_cache(FolderItem *item)
2336 {
2337         gchar *cache_file, *mark_file;
2338         FolderItemPrefs *prefs;
2339         gint filemode = 0;
2340         gchar *id;
2341         time_t last_mtime = (time_t)0;
2342         gboolean need_scan = FALSE;
2343
2344         if (!item || !item->path || !item->cache)
2345                 return;
2346
2347         if (FOLDER_TYPE(item->folder) == F_MH) {
2348                 last_mtime = item->mtime;
2349                 need_scan = item->folder->klass->scan_required(item->folder, item);
2350         }
2351
2352         id = folder_item_get_identifier(item);
2353         debug_print("Save cache for folder %s\n", id);
2354         g_free(id);
2355
2356         cache_file = folder_item_get_cache_file(item);
2357         mark_file = folder_item_get_mark_file(item);
2358         if (msgcache_write(cache_file, mark_file, item->cache) < 0) {
2359                 prefs = item->prefs;
2360                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2361                         /* for cache file */
2362                         filemode = prefs->folder_chmod;
2363                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2364                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2365                         chmod(cache_file, filemode);
2366                 }
2367         }
2368
2369         if (!need_scan && FOLDER_TYPE(item->folder) == F_MH) {
2370                 if (item->mtime == last_mtime) {
2371                         mh_set_mtime(item);
2372                 }
2373         }
2374
2375         g_free(cache_file);
2376         g_free(mark_file);
2377 }
2378
2379 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2380 {
2381         Folder *folder;
2382         MsgInfo *msginfo = NULL;
2383
2384         g_return_val_if_fail(item != NULL, NULL);
2385         if (item->no_select)
2386                 return NULL;
2387         folder = item->folder;
2388         if (!item->cache)
2389                 folder_item_read_cache(item);
2390
2391         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2392                 return msginfo;
2393
2394         msginfo = get_msginfo(item, num);
2395         if (msginfo != NULL) {
2396                 msgcache_add_msg(item->cache, msginfo);
2397                 return msginfo;
2398         }
2399
2400         return NULL;
2401 }
2402
2403 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2404 {
2405         Folder *folder;
2406         MsgInfo *msginfo;
2407
2408         g_return_val_if_fail(item != NULL, NULL);
2409         g_return_val_if_fail(msgid != NULL, NULL);
2410         if (item->no_select)
2411                 return FALSE;
2412
2413         folder = item->folder;
2414         if (!item->cache)
2415                 folder_item_read_cache(item);
2416
2417         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2418                 return msginfo;
2419
2420         return NULL;
2421 }
2422
2423 GSList *folder_item_get_msg_list(FolderItem *item)
2424 {
2425         g_return_val_if_fail(item != NULL, NULL);
2426         if (item->no_select)
2427                 return FALSE;
2428
2429         if (item->cache == 0)
2430                 folder_item_read_cache(item);
2431
2432         g_return_val_if_fail(item->cache != NULL, NULL);
2433
2434         return msgcache_get_msg_list(item->cache);
2435 }
2436
2437 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2438 {
2439         MsgInfo *msginfo = data;
2440         MimeInfo *mimeinfo = node->data;
2441
2442         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2443          && (!mimeinfo->subtype ||  strcmp(mimeinfo->subtype, "pgp-signature"))) {
2444                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2445         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2446                  mimeinfo->type != MIMETYPE_TEXT &&
2447                  mimeinfo->type != MIMETYPE_MULTIPART) {
2448                 if (!mimeinfo->subtype
2449                 ||  strcmp(mimeinfo->subtype, "pgp-signature"))
2450                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2451         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2452                 strcmp(mimeinfo->subtype, "pgp-signature") &&
2453                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2454                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2455                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2456         }
2457
2458         /* don't descend below top level message for signed and encrypted info */
2459         if (mimeinfo->type == MIMETYPE_MESSAGE)
2460                 return;
2461
2462         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2463                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2464         }
2465
2466         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2467                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2468         } else {
2469                 /* searching inside encrypted parts doesn't really make sense */
2470                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2471         }
2472 }
2473
2474 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2475 {
2476         Folder *folder;
2477         gchar *msgfile;
2478         MsgInfo *msginfo;
2479
2480         g_return_val_if_fail(item != NULL, NULL);
2481
2482         folder = item->folder;
2483
2484         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2485         if (item->no_select)
2486                 return NULL;
2487
2488         msgfile = folder->klass->fetch_msg(folder, item, num);
2489
2490         if (msgfile != NULL) {
2491                 msginfo = folder_item_get_msginfo(item, num);
2492                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2493                         MimeInfo *mimeinfo;
2494
2495                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2496                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2497                                 mimeinfo = procmime_scan_file(msgfile);
2498                         else
2499                                 mimeinfo = procmime_scan_queue_file(msgfile);
2500                         /* check for attachments */
2501                         if (mimeinfo != NULL) {
2502                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2503                                 procmime_mimeinfo_free_all(mimeinfo);
2504
2505                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2506                         }
2507                 }
2508                 procmsg_msginfo_free(msginfo);
2509         }
2510
2511         return msgfile;
2512 }
2513
2514 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2515                                   gboolean body)
2516 {
2517         Folder *folder;
2518         gchar *msgfile;
2519         MsgInfo *msginfo;
2520
2521         g_return_val_if_fail(item != NULL, NULL);
2522         if (item->no_select)
2523                 return NULL;
2524
2525         folder = item->folder;
2526
2527         if (folder->klass->fetch_msg_full == NULL)
2528                 return folder_item_fetch_msg(item, num);
2529
2530         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2531                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2532                                                 TRUE, TRUE);
2533         else
2534                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2535                                                 headers, body);
2536
2537         if (msgfile != NULL) {
2538                 msginfo = folder_item_get_msginfo(item, num);
2539                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2540                         MimeInfo *mimeinfo;
2541
2542                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2543                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2544                                 mimeinfo = procmime_scan_file(msgfile);
2545                         else
2546                                 mimeinfo = procmime_scan_queue_file(msgfile);
2547                         /* check for attachments */
2548                         if (mimeinfo != NULL) {
2549                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2550                                 procmime_mimeinfo_free_all(mimeinfo);
2551
2552                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2553                         }
2554                 }
2555                 procmsg_msginfo_free(msginfo);
2556         }
2557
2558         return msgfile;
2559 }
2560
2561
2562 gint folder_item_fetch_all_msg(FolderItem *item)
2563 {
2564         Folder *folder;
2565         GSList *mlist;
2566         GSList *cur;
2567         gint num = 0;
2568         gint ret = 0;
2569         gint total = 0;
2570
2571         g_return_val_if_fail(item != NULL, -1);
2572         if (item->no_select)
2573                 return -1;
2574
2575         debug_print("fetching all messages in %s ...\n", item->path ? item->path : "(null)");
2576         statusbar_print_all(_("Fetching all messages in %s ...\n"), item->path ? item->path : "(null)");
2577
2578         folder = item->folder;
2579
2580         if (folder->ui_func)
2581                 folder->ui_func(folder, item, folder->ui_func_data ?
2582                                 folder->ui_func_data : GINT_TO_POINTER(num));
2583
2584         mlist = folder_item_get_msg_list(item);
2585
2586         total = g_slist_length(mlist);
2587
2588         for (cur = mlist; cur != NULL; cur = cur->next) {
2589                 MsgInfo *msginfo = (MsgInfo *)cur->data;
2590                 gchar *msg;
2591
2592                 statusbar_progress_all(num++,total, 10);
2593
2594                 if (folder->ui_func)
2595                         folder->ui_func(folder, item,
2596                                         folder->ui_func_data ?
2597                                         folder->ui_func_data :
2598                                         GINT_TO_POINTER(num));
2599                 if (num % 50 == 0)
2600                         GTK_EVENTS_FLUSH();
2601
2602                 msg = folder_item_fetch_msg(item, msginfo->msgnum);
2603                 if (!msg) {
2604                         g_warning("Can't fetch message %d. Aborting.\n",
2605                                   msginfo->msgnum);
2606                         ret = -1;
2607                         break;
2608                 }
2609                 g_free(msg);
2610         }
2611
2612         statusbar_progress_all(0,0,0);
2613         statusbar_pop_all();
2614         procmsg_msg_list_free(mlist);
2615
2616         return ret;
2617 }
2618
2619 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2620 {
2621         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2622                                        {NULL,           NULL, FALSE}};
2623         FILE *fp;
2624         MsgInfo *msginfo;
2625         gint msgnum = 0;
2626         gchar buf[BUFFSIZE];
2627
2628         if ((fp = g_fopen(file, "rb")) == NULL)
2629                 return 0;
2630
2631         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2632             (folder_has_parent_of_type(dest, F_DRAFT)))
2633                 while (fgets(buf, sizeof(buf), fp) != NULL)
2634                         if (buf[0] == '\r' || buf[0] == '\n') break;
2635
2636         procheader_get_header_fields(fp, hentry);
2637         if (hentry[0].body) {
2638                 extract_parenthesis(hentry[0].body, '<', '>');
2639                 remove_space(hentry[0].body);
2640                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2641                         msgnum = msginfo->msgnum;
2642                         procmsg_msginfo_free(msginfo);
2643
2644                         debug_print("found message as uid %d\n", msgnum);
2645                 }
2646         }
2647
2648         g_free(hentry[0].body);
2649         hentry[0].body = NULL;
2650         fclose(fp);
2651
2652         return msgnum;
2653 }
2654
2655 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2656 {
2657         MsgPermFlags perm_flags = 0;
2658         MsgTmpFlags tmp_flags = 0;
2659
2660         /* create new flags */
2661         if (source != NULL) {
2662                 /* copy original flags */
2663                 perm_flags = source->flags.perm_flags;
2664                 tmp_flags = source->flags.tmp_flags;
2665         } else {
2666                 perm_flags = dest->flags.perm_flags;
2667                 tmp_flags = dest->flags.tmp_flags;
2668         }
2669
2670         /* remove new, unread and deleted in special folders */
2671         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
2672             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
2673             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
2674             folder_has_parent_of_type(dest->folder, F_TRASH))
2675                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
2676
2677         /* set ignore flag of ignored parent exists */
2678         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
2679                 perm_flags |= MSG_IGNORE_THREAD;
2680
2681         /* Unset tmp flags that should not be copied */
2682         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
2683
2684         /* unset flags that are set but should not */
2685         /* and set new flags */
2686         procmsg_msginfo_change_flags(dest,
2687                                   ~dest->flags.perm_flags & perm_flags,
2688                                   ~dest->flags.tmp_flags  & tmp_flags,
2689                                    dest->flags.perm_flags & ~perm_flags,
2690                                    dest->flags.tmp_flags  & ~tmp_flags);
2691 }
2692
2693 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
2694 {
2695         /* update folder stats */
2696         if (MSG_IS_NEW(newmsginfo->flags))
2697                 item->new_msgs++;
2698         if (MSG_IS_UNREAD(newmsginfo->flags))
2699                 item->unread_msgs++;
2700         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
2701                 item->unreadmarked_msgs++;
2702         if (MSG_IS_MARKED(newmsginfo->flags))
2703                 item->marked_msgs++;
2704         item->total_msgs++;
2705
2706         folder_item_update_freeze();
2707
2708         if (!item->cache)
2709                 folder_item_read_cache(item);
2710
2711         msgcache_add_msg(item->cache, newmsginfo);
2712         copy_msginfo_flags(flagsource, newmsginfo);
2713         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
2714         folder_item_update_thaw();
2715 }
2716
2717 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
2718 {
2719         MsgInfoUpdate msginfo_update;
2720
2721         if (!item->cache)
2722                 folder_item_read_cache(item);
2723
2724         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2725                 msginfo->folder->new_msgs--;
2726         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2727                 msginfo->folder->unread_msgs--;
2728         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2729                 msginfo->folder->unreadmarked_msgs--;
2730         if (MSG_IS_MARKED(msginfo->flags))
2731                 item->marked_msgs--;
2732
2733         msginfo->folder->total_msgs--;
2734
2735         msginfo_update.msginfo = msginfo;
2736         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
2737         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2738
2739         msgcache_remove_msg(item->cache, msginfo->msgnum);
2740         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
2741 }
2742
2743 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
2744                          MsgFlags *flags, gboolean remove_source)
2745 {
2746         GSList file_list;
2747         MsgFileInfo fileinfo;
2748
2749         g_return_val_if_fail(dest != NULL, -1);
2750         g_return_val_if_fail(file != NULL, -1);
2751
2752         fileinfo.msginfo = NULL;
2753         fileinfo.file = (gchar *)file;
2754         fileinfo.flags = flags;
2755         file_list.data = &fileinfo;
2756         file_list.next = NULL;
2757
2758         return folder_item_add_msgs(dest, &file_list, remove_source);
2759 }
2760
2761 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
2762                           gboolean remove_source)
2763 {
2764         Folder *folder;
2765         gint ret, num, lastnum = -1;
2766         GSList *file_cur;
2767         GRelation *relation;
2768         MsgFileInfo *fileinfo = NULL;
2769         gboolean folderscan = FALSE;
2770
2771         g_return_val_if_fail(dest != NULL, -1);
2772         g_return_val_if_fail(file_list != NULL, -1);
2773         g_return_val_if_fail(dest->folder != NULL, -1);
2774         if (dest->no_select)
2775                 return -1;
2776
2777         folder = dest->folder;
2778
2779         relation = g_relation_new(2);
2780         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2781
2782         if (folder->klass->add_msgs != NULL) {
2783                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
2784                 if (ret < 0) {
2785                         g_relation_destroy(relation);
2786                         return ret;
2787                 }
2788         } else {
2789                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2790                         fileinfo = (MsgFileInfo *) file_cur->data;
2791
2792                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
2793                         if (ret < 0) {
2794                                 g_relation_destroy(relation);
2795                                 return ret;
2796                         }
2797                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
2798                 }
2799         }
2800
2801         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2802                 GTuples *tuples;
2803
2804                 fileinfo = (MsgFileInfo *) file_cur->data;
2805                 tuples = g_relation_select(relation, fileinfo, 0);
2806                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2807                 g_tuples_destroy(tuples);
2808
2809                 if (num >= 0) {
2810                         MsgInfo *newmsginfo;
2811
2812                         if (num == 0) {
2813                                 if (!folderscan) {
2814                                         folder_item_scan_full(dest, FALSE);
2815                                         folderscan = TRUE;
2816                                 }
2817                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
2818                         }
2819
2820                         if (num > lastnum)
2821                                 lastnum = num;
2822
2823                         if (num >= 0 && remove_source) {
2824                                 if (g_unlink(fileinfo->file) < 0)
2825                                         FILE_OP_ERROR(fileinfo->file, "unlink");
2826                         }
2827
2828                         if (num == 0)
2829                                 continue;
2830
2831                         if (!folderscan &&
2832                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
2833                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
2834                                 procmsg_msginfo_free(newmsginfo);
2835                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2836                                 /* TODO: set default flags */
2837                                 procmsg_msginfo_free(newmsginfo);
2838                         }
2839                 }
2840         }
2841
2842         g_relation_destroy(relation);
2843
2844         return lastnum;
2845 }
2846
2847 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy)
2848 {
2849         GSList *mlist;
2850         FolderItem *new_item;
2851         FolderItem *next_item;
2852         GNode *srcnode;
2853         gchar *old_id, *new_id;
2854
2855         /* move messages */
2856         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
2857         new_item = folder_create_folder(dest, src->name);
2858         if (new_item == NULL) {
2859                 printf("Can't create folder\n");
2860                 return NULL;
2861         }
2862
2863         if (new_item->folder == NULL)
2864                 new_item->folder = dest->folder;
2865
2866         /* move messages */
2867         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"),
2868                         src->name, new_item->path);
2869
2870         mlist = folder_item_get_msg_list(src);
2871
2872         if (mlist != NULL) {
2873                 if (copy)
2874                         folder_item_copy_msgs(new_item, mlist);
2875                 else
2876                         folder_item_move_msgs(new_item, mlist);
2877                 procmsg_msg_list_free(mlist);
2878         }
2879
2880         /*copy prefs*/
2881         folder_item_prefs_copy_prefs(src, new_item);
2882
2883         /* copy internal data */
2884         if (src->folder->klass == new_item->folder->klass &&
2885             src->folder->klass->copy_private_data != NULL)
2886                 src->folder->klass->copy_private_data(src->folder,
2887                                         src, new_item);
2888         new_item->collapsed = src->collapsed;
2889         new_item->thread_collapsed = src->thread_collapsed;
2890         new_item->threaded  = src->threaded;
2891         new_item->ret_rcpt  = src->ret_rcpt;
2892         new_item->hide_read_msgs = src->hide_read_msgs;
2893         new_item->sort_key  = src->sort_key;
2894         new_item->sort_type = src->sort_type;
2895
2896         prefs_matcher_write_config();
2897
2898         /* recurse */
2899         srcnode = src->folder->node;
2900         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
2901         srcnode = srcnode->children;
2902         while (srcnode != NULL) {
2903                 if (srcnode && srcnode->data) {
2904                         next_item = (FolderItem*) srcnode->data;
2905                         srcnode = srcnode->next;
2906                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
2907                                 return NULL;
2908                         }
2909                 }
2910         }
2911         old_id = folder_item_get_identifier(src);
2912         new_id = folder_item_get_identifier(new_item);
2913
2914         /* if src supports removing, otherwise only copy folder */
2915         if (src->folder->klass->remove_folder != NULL && !copy)
2916                 src->folder->klass->remove_folder(src->folder, src);
2917         folder_write_list();
2918
2919         if (!copy) {
2920                 debug_print("updating rules : %s => %s\n", old_id, new_id);
2921                 if (old_id != NULL && new_id != NULL) {
2922                         prefs_filtering_rename_path(old_id, new_id);
2923                         account_rename_path(old_id, new_id);
2924                 }
2925         }
2926         g_free(old_id);
2927         g_free(new_id);
2928
2929         return new_item;
2930 }
2931
2932 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
2933 {
2934         FolderItem *tmp = folder_item_parent(dest);
2935         gchar * src_identifier, * dst_identifier;
2936         gchar * phys_srcpath, * phys_dstpath, *tmppath;
2937
2938         while (tmp) {
2939                 if (tmp == src) {
2940                         return F_MOVE_FAILED_DEST_IS_CHILD;
2941                 }
2942                 tmp = folder_item_parent(tmp);
2943         }
2944
2945         tmp = folder_item_parent(src);
2946
2947         src_identifier = folder_item_get_identifier(src);
2948         dst_identifier = folder_item_get_identifier(dest);
2949
2950         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
2951                 /* dest can be a root folder */
2952                 dst_identifier = folder_get_identifier(dest->folder);
2953         }
2954         if (src_identifier == NULL || dst_identifier == NULL) {
2955                 debug_print("Can't get identifiers\n");
2956                 return F_MOVE_FAILED;
2957         }
2958
2959         if (src->folder != dest->folder && !copy) {
2960                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
2961         }
2962
2963         phys_srcpath = folder_item_get_path(src);
2964         tmppath = folder_item_get_path(dest);
2965         phys_dstpath = g_strconcat(tmppath,
2966                        G_DIR_SEPARATOR_S,
2967                        g_path_get_basename(phys_srcpath),
2968                        NULL);
2969         g_free(tmppath);
2970
2971         if (folder_item_parent(src) == dest || src == dest) {
2972                 g_free(src_identifier);
2973                 g_free(dst_identifier);
2974                 g_free(phys_srcpath);
2975                 g_free(phys_dstpath);
2976                 return F_MOVE_FAILED_DEST_IS_PARENT;
2977         }
2978         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
2979         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
2980                 return F_MOVE_FAILED;
2981         }
2982
2983         g_free(src_identifier);
2984         g_free(dst_identifier);
2985         g_free(phys_srcpath);
2986         g_free(phys_dstpath);
2987
2988         *new_item = tmp;
2989
2990         return F_MOVE_OK;
2991 }
2992
2993 /**
2994  * Copy a list of message to a new folder and remove
2995  * source messages if wanted
2996  */
2997 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
2998 {
2999         Folder *folder;
3000         GSList *l;
3001         gint num, lastnum = -1;
3002         gboolean folderscan = FALSE;
3003         GRelation *relation;
3004         GSList *not_moved = NULL;
3005         gint total = 0, curmsg = 0;
3006         MsgInfo *msginfo = NULL;
3007
3008         g_return_val_if_fail(dest != NULL, -1);
3009         g_return_val_if_fail(msglist != NULL, -1);
3010
3011         folder = dest->folder;
3012
3013         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3014         if (dest->no_select)
3015                 return -1;
3016
3017         msginfo = (MsgInfo *)msglist->data;
3018
3019         if (!msginfo)
3020                 return -1;
3021
3022         if (!MSG_IS_QUEUED(msginfo->flags) &&
3023             MSG_IS_DRAFT(msginfo->flags) &&
3024             folder_has_parent_of_type(dest, F_QUEUE)) {
3025                 GSList *cur = msglist;
3026                 gboolean queue_err = FALSE;
3027                 for (; cur; cur = cur->next) {
3028                         Compose *compose = NULL;
3029                         FolderItem *queue = dest;
3030                         int val = 0;
3031
3032                         msginfo = (MsgInfo *)cur->data;
3033                         compose = compose_reedit(msginfo, TRUE);
3034                         if (compose == NULL) {
3035                                 queue_err = TRUE;
3036                                 continue;
3037                         }
3038                         val = compose_queue(compose, NULL, &queue, NULL,
3039                                         FALSE);
3040                         if (val < 0) {
3041                                 queue_err = TRUE;
3042                         } else if (remove_source) {
3043                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3044                         }
3045                         if (val == 0)
3046                                 compose_close(compose);
3047                 }
3048                 return queue_err ? -1:0;
3049         }
3050
3051         relation = g_relation_new(2);
3052         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3053         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
3054
3055         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3056                 MsgInfo * msginfo = (MsgInfo *) l->data;
3057
3058                 if (msginfo->planned_download != 0) {
3059                         int old_planned = msginfo->planned_download;
3060                         partial_unmark(msginfo);
3061                         /* little hack to reenable after */
3062                         msginfo->planned_download = old_planned;
3063                 }
3064         }
3065
3066         /*
3067          * Copy messages to destination folder and
3068          * store new message numbers in newmsgnums
3069          */
3070         if (folder->klass->copy_msgs != NULL) {
3071                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3072                         g_relation_destroy(relation);
3073                         return -1;
3074                 }
3075         } else {
3076                 MsgInfo * msginfo;
3077                 l = msglist;
3078
3079                 /* immediately stop if src and dest folders are identical */
3080                 if (l != NULL) {
3081                         msginfo = (MsgInfo *) l->data;
3082                         if (msginfo != NULL && msginfo->folder == dest) {
3083                                 g_relation_destroy(relation);
3084                                 return -1;
3085                         }
3086                 }
3087
3088                 for (; l != NULL ; l = g_slist_next(l)) {
3089                         msginfo = (MsgInfo *) l->data;
3090
3091                         num = folder->klass->copy_msg(folder, dest, msginfo);
3092                         if (num > 0)
3093                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
3094                         else
3095                                 not_moved = g_slist_prepend(not_moved, msginfo);
3096                 }
3097         }
3098
3099         if (remove_source) {
3100                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3101                 FolderItem *item = msginfo->folder;
3102                 /*
3103                  * Remove source messages from their folders if
3104                  * copying was successfull and update folder
3105                  * message counts
3106                  */
3107                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3108                         item->folder->klass->remove_msgs(item->folder,
3109                                                                 msginfo->folder,
3110                                                                 msglist,
3111                                                                 relation);
3112                 }
3113                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3114                         GTuples *tuples;
3115                         msginfo = (MsgInfo *) l->data;
3116                         item = msginfo->folder;
3117
3118                         tuples = g_relation_select(relation, msginfo, 0);
3119                         if (tuples) {
3120                                 if (tuples->len)
3121                                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3122                                 else
3123                                         num = 0;
3124                                 g_tuples_destroy(tuples);
3125                         } else {
3126                                 num = -1;
3127                         }
3128
3129                         if (g_slist_find(not_moved, msginfo))
3130                                 continue;
3131
3132                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3133                                 if (!item->folder->klass->remove_msgs)
3134                                         item->folder->klass->remove_msg(item->folder,
3135                                                                 msginfo->folder,
3136                                                                 msginfo->msgnum);
3137                                 remove_msginfo_from_cache(item, msginfo);
3138                         }
3139                 }
3140         }
3141
3142         /* Read cache for dest folder */
3143         if (!dest->cache) folder_item_read_cache(dest);
3144
3145         /*
3146          * Fetch new MsgInfos for new messages in dest folder,
3147          * add them to the msgcache and update folder message counts
3148          */
3149         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
3150                 folder_item_scan_full(dest, FALSE);
3151                 folderscan = TRUE;
3152         }
3153
3154         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3155         total = g_slist_length(msglist);
3156         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3157                 MsgInfo *msginfo = (MsgInfo *) l->data;
3158                 GTuples *tuples;
3159
3160                 tuples = g_relation_select(relation, msginfo, 0);
3161                 if (tuples->len > 0) {
3162                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3163                         g_tuples_destroy(tuples);
3164                 } else {
3165                         num = 0;
3166                         if (tuples)
3167                                 g_tuples_destroy(tuples);
3168                 }
3169                 statusbar_progress_all(curmsg++,total, 100);
3170                 if (curmsg % 100 == 0)
3171                         GTK_EVENTS_FLUSH();
3172
3173                 if (num >= 0) {
3174                         MsgInfo *newmsginfo = NULL;
3175
3176                         if (!folderscan && num > 0) {
3177                                 newmsginfo = get_msginfo(dest, num);
3178                                 if (newmsginfo != NULL) {
3179                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3180                                 }
3181                         }
3182                         if (newmsginfo == NULL) {
3183                                 if (!folderscan) {
3184                                         folder_item_scan_full(dest, FALSE);
3185                                         folderscan = TRUE;
3186                                 }
3187                                 if (msginfo->msgid != NULL) {
3188                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3189                                         if (newmsginfo != NULL) {
3190                                                 copy_msginfo_flags(msginfo, newmsginfo);
3191                                                 num = newmsginfo->msgnum;
3192                                         }
3193                                 }
3194                         }
3195
3196                         if (msginfo->planned_download
3197                             == POP3_PARTIAL_DLOAD_DELE) {
3198                                 partial_mark_for_delete(newmsginfo);
3199                         }
3200                         if (msginfo->planned_download
3201                             == POP3_PARTIAL_DLOAD_DLOAD) {
3202                                 partial_mark_for_download(newmsginfo);
3203                         }
3204                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3205                             procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3206                             procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3207                             hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3208                         }
3209                         procmsg_msginfo_free(newmsginfo);
3210
3211
3212                         if (num > lastnum)
3213                                 lastnum = num;
3214                 }
3215         }
3216         statusbar_progress_all(0,0,0);
3217         statusbar_pop_all();
3218
3219         g_relation_destroy(relation);
3220         if (not_moved != NULL) {
3221                 g_slist_free(not_moved);
3222                 return -1;
3223         } else
3224                 return lastnum;
3225 }
3226
3227 /**
3228  * Move a message to a new folder.
3229  *
3230  * \param dest Destination folder
3231  * \param msginfo The message
3232  */
3233 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3234 {
3235         GSList list;
3236
3237         g_return_val_if_fail(dest != NULL, -1);
3238         g_return_val_if_fail(msginfo != NULL, -1);
3239
3240         list.data = msginfo;
3241         list.next = NULL;
3242
3243         return do_copy_msgs(dest, &list, TRUE);
3244 }
3245
3246 /**
3247  * Move a list of messages to a new folder.
3248  *
3249  * \param dest Destination folder
3250  * \param msglist List of messages
3251  */
3252 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3253 {
3254         gint result = -1;
3255         g_return_val_if_fail(dest != NULL, -1);
3256         g_return_val_if_fail(msglist != NULL, -1);
3257         inc_lock();
3258         result = do_copy_msgs(dest, msglist, TRUE);
3259         inc_unlock();
3260         return result;
3261 }
3262
3263 /**
3264  * Copy a message to a new folder.
3265  *
3266  * \param dest Destination folder
3267  * \param msginfo The message
3268  */
3269 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3270 {
3271         GSList list;
3272
3273         g_return_val_if_fail(dest != NULL, -1);
3274         g_return_val_if_fail(msginfo != NULL, -1);
3275
3276         list.data = msginfo;
3277         list.next = NULL;
3278
3279         return do_copy_msgs(dest, &list, FALSE);
3280 }
3281
3282 /**
3283  * Copy a list of messages to a new folder.
3284  *
3285  * \param dest Destination folder
3286  * \param msglist List of messages
3287  */
3288 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3289 {
3290         gint result;
3291         g_return_val_if_fail(dest != NULL, -1);
3292         g_return_val_if_fail(msglist != NULL, -1);
3293
3294         inc_lock();
3295         result = do_copy_msgs(dest, msglist, FALSE);
3296         inc_unlock();
3297
3298         return result;
3299 }
3300
3301 gint folder_item_remove_msg(FolderItem *item, gint num)
3302 {
3303         Folder *folder;
3304         gint ret;
3305         MsgInfo *msginfo;
3306
3307         g_return_val_if_fail(item != NULL, -1);
3308         folder = item->folder;
3309         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3310         if (item->no_select)
3311                 return -1;
3312
3313         if (!item->cache) folder_item_read_cache(item);
3314
3315         ret = folder->klass->remove_msg(folder, item, num);
3316
3317         msginfo = msgcache_get_msg(item->cache, num);
3318         if (msginfo != NULL) {
3319                 remove_msginfo_from_cache(item, msginfo);
3320                 procmsg_msginfo_free(msginfo);
3321         }
3322
3323         return ret;
3324 }
3325
3326 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3327 {
3328         Folder *folder;
3329         gint ret = 0;
3330
3331         g_return_val_if_fail(item != NULL, -1);
3332         folder = item->folder;
3333         g_return_val_if_fail(folder != NULL, -1);
3334         if (item->no_select)
3335                 return -1;
3336         inc_lock();
3337         if (!item->cache) folder_item_read_cache(item);
3338
3339         folder_item_update_freeze();
3340         if (item->folder->klass->remove_msgs) {
3341                 ret = item->folder->klass->remove_msgs(item->folder,
3342                                                         item,
3343                                                         msglist,
3344                                                         NULL);
3345         }
3346         while (ret == 0 && msglist != NULL) {
3347                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
3348                 if (MSG_IS_LOCKED(msginfo->flags)) {
3349                         msglist = msglist->next;
3350                         continue;
3351                 }
3352                 if (!item->folder->klass->remove_msgs)
3353                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3354                 if (ret != 0) break;
3355                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3356                 msglist = msglist->next;
3357         }
3358         folder_item_scan_full(item, FALSE);
3359         folder_item_update_thaw();
3360         inc_unlock();
3361         return ret;
3362 }
3363
3364 gint folder_item_remove_all_msg(FolderItem *item)
3365 {
3366         Folder *folder;
3367         gint result;
3368
3369         g_return_val_if_fail(item != NULL, -1);
3370         if (item->no_select)
3371                 return -1;
3372
3373         folder = item->folder;
3374
3375         inc_lock();
3376         if (folder->klass->remove_all_msg != NULL) {
3377                 result = folder->klass->remove_all_msg(folder, item);
3378
3379                 if (result == 0) {
3380                         folder_item_free_cache(item, TRUE);
3381                         item->cache = msgcache_new();
3382                 }
3383         } else {
3384                 MsgInfoList *msglist;
3385
3386                 msglist = folder_item_get_msg_list(item);
3387                 result = folder_item_remove_msgs(item, msglist);
3388                 procmsg_msg_list_free(msglist);
3389         }
3390
3391         if (result == 0) {
3392                 item->new_msgs = 0;
3393                 item->unread_msgs = 0;
3394                 item->unreadmarked_msgs = 0;
3395                 item->marked_msgs = 0;
3396                 item->total_msgs = 0;
3397                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3398         }
3399
3400         inc_unlock();
3401         return result;
3402 }
3403
3404 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3405 {
3406         g_return_if_fail(item != NULL);
3407         g_return_if_fail(msginfo != NULL);
3408         if (item->no_select)
3409                 return;
3410
3411         if (item->folder->klass->change_flags != NULL) {
3412                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3413         } else {
3414                 msginfo->flags.perm_flags = newflags;
3415         }
3416 }
3417
3418 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3419 {
3420         Folder *folder;
3421
3422         g_return_val_if_fail(item != NULL, FALSE);
3423         if (item->no_select)
3424                 return FALSE;
3425
3426         folder = item->folder;
3427
3428         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3429
3430         return folder->klass->is_msg_changed(folder, item, msginfo);
3431 }
3432
3433 static gchar *folder_item_get_cache_file(FolderItem *item)
3434 {
3435         gchar *path;
3436         gchar *file;
3437         gchar *old_file;
3438
3439         g_return_val_if_fail(item != NULL, NULL);
3440         g_return_val_if_fail(item->path != NULL, NULL);
3441
3442         path = folder_item_get_path(item);
3443         g_return_val_if_fail(path != NULL, NULL);
3444         if (!is_dir_exist(path))
3445                 make_dir_hier(path);
3446         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3447         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
3448
3449         if (!is_file_exist(file) && is_file_exist(old_file))
3450                 move_file(old_file, file, FALSE);
3451         g_free(old_file);
3452         g_free(path);
3453
3454         return file;
3455 }
3456
3457 static gchar *folder_item_get_mark_file(FolderItem *item)
3458 {
3459         gchar *path;
3460         gchar *file;
3461         gchar *old_file;
3462
3463         g_return_val_if_fail(item != NULL, NULL);
3464         g_return_val_if_fail(item->path != NULL, NULL);
3465
3466         path = folder_item_get_path(item);
3467         g_return_val_if_fail(path != NULL, NULL);
3468         if (!is_dir_exist(path))
3469                 make_dir_hier(path);
3470         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3471         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
3472
3473         if (!is_file_exist(file) && is_file_exist(old_file))
3474                 move_file(old_file, file, FALSE);
3475         g_free(old_file);
3476         g_free(path);
3477
3478         return file;
3479 }
3480
3481 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3482 {
3483         XMLNode *xmlnode = (XMLNode *) nodedata;
3484         Folder *folder = (Folder *) data;
3485         FolderItem *item;
3486
3487         g_return_val_if_fail(xmlnode != NULL, NULL);
3488         g_return_val_if_fail(folder != NULL, NULL);
3489
3490         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
3491                 g_warning("tag name != \"folderitem\"\n");
3492                 return NULL;
3493         }
3494
3495         item = folder_item_new(folder, "", "");
3496         if (folder->klass->item_set_xml != NULL)
3497                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
3498         else
3499                 folder_item_set_xml(folder, item, xmlnode->tag);
3500
3501         item->folder = folder;
3502
3503         switch (item->stype) {
3504         case F_INBOX:  folder->inbox  = item; break;
3505         case F_OUTBOX: folder->outbox = item; break;
3506         case F_DRAFT:  folder->draft  = item; break;
3507         case F_QUEUE:  folder->queue  = item; break;
3508         case F_TRASH:  folder->trash  = item; break;
3509         default:       break;
3510         }
3511         folder_item_prefs_read_config(item);
3512
3513         return item;
3514 }
3515
3516 static gboolean folder_item_set_node(GNode *node, gpointer data)
3517 {
3518         FolderItem *item = (FolderItem *) node->data;
3519         item->node = node;
3520
3521         return FALSE;
3522 }
3523
3524 static Folder *folder_get_from_xml(GNode *node)
3525 {
3526         Folder *folder;
3527         XMLNode *xmlnode;
3528         GList *list;
3529         FolderClass *klass = NULL;
3530         GNode *cur;
3531
3532         g_return_val_if_fail(node->data != NULL, NULL);
3533
3534         xmlnode = node->data;
3535         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
3536                 g_warning("tag name != \"folder\"\n");
3537                 return NULL;
3538         }
3539         list = xmlnode->tag->attr;
3540         for (; list != NULL; list = list->next) {
3541                 XMLAttr *attr = list->data;
3542
3543                 if (!attr || !attr->name || !attr->value) continue;
3544                 if (!strcmp(attr->name, "type"))
3545                         klass = folder_get_class_from_string(attr->value);
3546         }
3547         if (klass == NULL)
3548                 return NULL;
3549
3550         folder = folder_new(klass, "", "");
3551         g_return_val_if_fail(folder != NULL, NULL);
3552
3553         if (klass->set_xml)
3554                 klass->set_xml(folder, xmlnode->tag);
3555         else
3556                 folder_set_xml(folder, xmlnode->tag);
3557
3558         cur = node->children;
3559         while (cur != NULL) {
3560                 GNode *itemnode;
3561
3562                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
3563                 g_node_append(folder->node, itemnode);
3564                 cur = cur->next;
3565         }
3566         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
3567
3568         return folder;
3569 }
3570
3571 static gchar *folder_get_list_path(void)
3572 {
3573         static gchar *filename = NULL;
3574
3575         if (!filename)
3576                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3577                                         FOLDER_LIST, NULL);
3578
3579         return filename;
3580 }
3581
3582 #define PUT_ESCAPE_STR(fp, attr, str)                   \
3583 {                                                       \
3584         fputs(" " attr "=\"", fp);                      \
3585         xml_file_put_escape_str(fp, str);               \
3586         fputs("\"", fp);                                \
3587 }
3588
3589 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
3590 {
3591         FolderItem *item = (FolderItem *) nodedata;
3592         XMLTag *tag;
3593
3594         g_return_val_if_fail(item != NULL, NULL);
3595
3596         if (item->folder->klass->item_get_xml != NULL)
3597                 tag = item->folder->klass->item_get_xml(item->folder, item);
3598         else
3599                 tag = folder_item_get_xml(item->folder, item);
3600
3601         return xml_node_new(tag, NULL);
3602 }
3603
3604 static GNode *folder_get_xml_node(Folder *folder)
3605 {
3606         GNode *node;
3607         XMLNode *xmlnode;
3608         XMLTag *tag;
3609
3610         g_return_val_if_fail(folder != NULL, NULL);
3611
3612         if (folder->klass->get_xml != NULL)
3613                 tag = folder->klass->get_xml(folder);
3614         else
3615                 tag = folder_get_xml(folder);
3616
3617         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
3618
3619         xmlnode = xml_node_new(tag, NULL);
3620
3621         node = g_node_new(xmlnode);
3622
3623         g_return_val_if_fail (folder->node != NULL, NULL);
3624
3625         if (folder->node->children) {
3626                 GNode *cur;
3627
3628                 cur = folder->node->children;
3629                 while (cur) {
3630                         GNode *xmlnode;
3631
3632                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
3633                         g_node_append(node, xmlnode);
3634                         cur = cur->next;
3635                 }
3636         }
3637
3638         return node;
3639 }
3640
3641 static void folder_update_op_count_rec(GNode *node)
3642 {
3643         FolderItem *fitem = FOLDER_ITEM(node->data);
3644
3645         if (g_node_depth(node) > 0) {
3646                 if (fitem->op_count > 0) {
3647                         fitem->op_count = 0;
3648                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
3649                 }
3650                 if (node->children) {
3651                         GNode *child;
3652
3653                         child = node->children;
3654                         while (child) {
3655                                 GNode *cur;
3656
3657                                 cur = child;
3658                                 child = cur->next;
3659                                 folder_update_op_count_rec(cur);
3660                         }
3661                 }
3662         }
3663 }
3664
3665 void folder_update_op_count(void)
3666 {
3667         GList *cur;
3668         Folder *folder;
3669
3670         for (cur = folder_list; cur != NULL; cur = cur->next) {
3671                 folder = cur->data;
3672                 folder_update_op_count_rec(folder->node);
3673         }
3674 }
3675
3676 typedef struct _type_str {
3677         gchar * str;
3678         gint type;
3679 } type_str;
3680
3681
3682 /*
3683 static gchar * folder_item_get_tree_identifier(FolderItem * item)
3684 {
3685         if (item->parent != NULL) {
3686                 gchar * path;
3687                 gchar * id;
3688
3689                 path = folder_item_get_tree_identifier(item->parent);
3690                 if (path == NULL)
3691                         return NULL;
3692
3693                 id = g_strconcat(path, "/", item->name, NULL);
3694                 g_free(path);
3695
3696                 return id;
3697         }
3698         else {
3699                 return g_strconcat("/", item->name, NULL);
3700         }
3701 }
3702 */
3703
3704 /* CLAWS: temporary local folder for filtering */
3705 #define TEMP_FOLDER "TEMP_FOLDER"
3706 #define PROCESSING_FOLDER_ITEM "processing"
3707
3708 static FolderItem *processing_folder_item;
3709
3710 static void folder_create_processing_folder(void)
3711 {
3712         Folder *processing_folder;
3713         gchar      *tmpname;
3714
3715         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
3716                 gchar *tmppath;
3717
3718                 tmppath =
3719                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3720                                 "tempfolder", NULL);
3721                 processing_folder =
3722                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
3723                 g_free(tmppath);
3724         }
3725         g_assert(processing_folder != NULL);
3726
3727         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
3728         /* FIXME: [W32] The code below does not correctly merge
3729            relative filenames; there should be a function to handle
3730            this.  */
3731         if (!is_relative_filename(LOCAL_FOLDER(processing_folder)->rootpath))
3732                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
3733                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3734                                       NULL);
3735         else
3736                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
3737                                       LOCAL_FOLDER(processing_folder)->rootpath,
3738                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3739                                       NULL);
3740
3741         if (!is_dir_exist(tmpname)) {
3742                 debug_print("*TMP* creating %s\n", tmpname);
3743                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
3744                                                                                  processing_folder->node->data,
3745                                                                                  PROCESSING_FOLDER_ITEM);
3746         } else {
3747                 debug_print("*TMP* already created\n");
3748                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
3749                 g_assert(processing_folder_item);
3750                 folder_item_append(processing_folder->node->data, processing_folder_item);
3751         }
3752         g_assert(processing_folder_item != NULL);
3753         g_free(tmpname);
3754 }
3755
3756 FolderItem *folder_get_default_processing(void)
3757 {
3758         if (!processing_folder_item) {
3759                 folder_create_processing_folder();
3760         }
3761         return processing_folder_item;
3762 }
3763
3764 /* folder_persist_prefs_new() - return hash table with persistent
3765  * settings (and folder name as key).
3766  * (note that in claws other options are in the folder_item_prefs_RC
3767  * file, so those don't need to be included in PersistPref yet)
3768  */
3769 static GHashTable *folder_persist_prefs_new(Folder *folder)
3770 {
3771         GHashTable *pptable;
3772
3773         g_return_val_if_fail(folder, NULL);
3774         pptable = g_hash_table_new(g_str_hash, g_str_equal);
3775         folder_get_persist_prefs_recursive(folder->node, pptable);
3776         return pptable;
3777 }
3778
3779 static void folder_persist_prefs_free(GHashTable *pptable)
3780 {
3781         g_return_if_fail(pptable);
3782         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
3783         g_hash_table_destroy(pptable);
3784 }
3785
3786 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
3787 {
3788         if (pptable == NULL || name == NULL) return NULL;
3789         return g_hash_table_lookup(pptable, name);
3790 }
3791
3792 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
3793 {
3794         const PersistPrefs *pp;
3795         gchar *id = folder_item_get_identifier(item);
3796
3797         pp = folder_get_persist_prefs(pptable, id);
3798         g_free(id);
3799
3800         if (!pp) return;
3801
3802         /* CLAWS: since not all folder properties have been migrated to
3803          * folderlist.xml, we need to call the old stuff first before
3804          * setting things that apply both to Main and Claws. */
3805         folder_item_prefs_read_config(item);
3806
3807         item->collapsed = pp->collapsed;
3808         item->thread_collapsed = pp->thread_collapsed;
3809         item->threaded  = pp->threaded;
3810         item->ret_rcpt  = pp->ret_rcpt;
3811         item->hide_read_msgs = pp->hide_read_msgs;
3812         item->sort_key  = pp->sort_key;
3813         item->sort_type = pp->sort_type;
3814 }
3815
3816 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
3817 {
3818         FolderItem *item = FOLDER_ITEM(node->data);
3819         PersistPrefs *pp;
3820         GNode *child, *cur;
3821         gchar *id;
3822
3823         g_return_if_fail(node != NULL);
3824         g_return_if_fail(item != NULL);
3825
3826         /* NOTE: item->path == NULL means top level folder; not interesting
3827          * to store preferences of that one.  */
3828         if (item->path) {
3829                 id = folder_item_get_identifier(item);
3830                 pp = g_new0(PersistPrefs, 1);
3831                 g_return_if_fail(pp != NULL);
3832                 pp->collapsed = item->collapsed;
3833                 pp->thread_collapsed = item->thread_collapsed;
3834                 pp->threaded  = item->threaded;
3835                 pp->ret_rcpt  = item->ret_rcpt;
3836                 pp->hide_read_msgs = item->hide_read_msgs;
3837                 pp->sort_key  = item->sort_key;
3838                 pp->sort_type = item->sort_type;
3839                 g_hash_table_insert(pptable, id, pp);
3840         }
3841
3842         if (node->children) {
3843                 child = node->children;
3844                 while (child) {
3845                         cur = child;
3846                         child = cur->next;
3847                         folder_get_persist_prefs_recursive(cur, pptable);
3848                 }
3849         }
3850 }
3851
3852 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
3853 {
3854         g_free(key);
3855         g_free(val);
3856         return TRUE;
3857 }
3858
3859 void folder_item_apply_processing(FolderItem *item)
3860 {
3861         GSList *processing_list;
3862         GSList *mlist, *cur;
3863         guint total = 0, curmsg = 0;
3864         gint last_apply_per_account;
3865
3866         g_return_if_fail(item != NULL);
3867
3868         if (item->no_select)
3869                return;
3870
3871         processing_list = item->prefs->processing;
3872
3873         if (!pre_global_processing && !processing_list
3874         &&  !post_global_processing)
3875                 return;
3876
3877         debug_print("processing %s\n", item->name);
3878         folder_item_update_freeze();
3879
3880         mlist = folder_item_get_msg_list(item);
3881         total = g_slist_length(mlist);
3882         statusbar_print_all(_("Processing messages..."));
3883
3884         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
3885         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
3886
3887         for (cur = mlist ; cur != NULL ; cur = cur->next) {
3888                 MsgInfo * msginfo;
3889
3890                 msginfo = (MsgInfo *) cur->data;
3891
3892                 /* reset parameters that can be modified by processing */
3893                 msginfo->hidden = 0;
3894                 msginfo->score = 0;
3895
3896                 statusbar_progress_all(curmsg++,total, 10);
3897
3898                 /* apply pre global rules */
3899                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
3900                                 FILTERING_PRE_PROCESSING, NULL);
3901
3902                 /* apply rules of the folder */
3903                 filter_message_by_msginfo(processing_list, msginfo, NULL,
3904                                 FILTERING_FOLDER_PROCESSING, item->name);
3905
3906                 /* apply post global rules */
3907                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
3908                                 FILTERING_POST_PROCESSING, NULL);
3909         }
3910         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
3911
3912         if (pre_global_processing || processing_list
3913             || post_global_processing)
3914                 filtering_move_and_copy_msgs(mlist);
3915         for (cur = mlist ; cur != NULL ; cur = cur->next) {
3916                 MsgInfo * msginfo = (MsgInfo *)cur->data;
3917                 procmsg_msginfo_free(msginfo);
3918         }
3919         g_slist_free(mlist);
3920
3921         statusbar_progress_all(0,0,0);
3922         statusbar_pop_all();
3923
3924         folder_item_update_thaw();
3925 }
3926
3927 /*
3928  *  functions for handling FolderItem content changes
3929  */
3930 static gint folder_item_update_freeze_cnt = 0;
3931
3932 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
3933 {
3934         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
3935                 FolderItemUpdateData source;
3936
3937                 source.item = item;
3938                 source.update_flags = update_flags;
3939                 source.msg = msg;
3940                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3941         } else {
3942                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
3943         }
3944 }
3945
3946 /**
3947  * Notify the folder system about changes to a folder. If the
3948  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
3949  * be invoked, otherwise the changes will be remebered until
3950  * the folder system is thawed.
3951  *
3952  * \param item The FolderItem that was changed
3953  * \param update_flags Type of changed that was made
3954  */
3955 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
3956 {
3957         folder_item_update_with_msg(item, update_flags, NULL);
3958 }
3959
3960 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
3961 {
3962         GNode *node = item->folder->node;
3963
3964         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
3965         node = node->children;
3966
3967         folder_item_update(item, update_flags);
3968         while (node != NULL) {
3969                 if (node && node->data) {
3970                         FolderItem *next_item = (FolderItem*) node->data;
3971
3972                         folder_item_update(next_item, update_flags);
3973                 }
3974                 node = node->next;
3975         }
3976 }
3977
3978 void folder_item_update_freeze(void)
3979 {
3980         folder_item_update_freeze_cnt++;
3981 }
3982
3983 static void folder_item_update_func(FolderItem *item, gpointer data)
3984 {
3985         FolderItemUpdateData source;
3986
3987         if (item->update_flags) {
3988                 source.item = item;
3989                 source.update_flags = item->update_flags;
3990                 source.msg = NULL;
3991                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3992                 item->update_flags = 0;
3993         }
3994 }
3995
3996 void folder_item_update_thaw(void)
3997 {
3998         if (folder_item_update_freeze_cnt > 0)
3999                 folder_item_update_freeze_cnt--;
4000         if (folder_item_update_freeze_cnt == 0) {
4001                 /* Update all folders */
4002                 folder_func_to_all_folders(folder_item_update_func, NULL);
4003         }
4004 }
4005
4006 void folder_item_synchronise(FolderItem *item)
4007 {
4008         if (!item)
4009                 return;
4010         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4011                 statusbar_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4012                 item->folder->klass->synchronise(item);
4013                 statusbar_pop_all();
4014         }
4015 }
4016
4017 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4018 {
4019         Folder *folder = (Folder *)data;
4020         if (folder == NULL || item->folder == folder) {
4021                 folder_item_synchronise(item);
4022         }
4023 }
4024
4025 void folder_synchronise(Folder *folder)
4026 {
4027         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4028 }
4029
4030 typedef struct _WantSyncData {
4031         Folder *folder;
4032         gboolean want_sync;
4033 } WantSyncData;
4034
4035 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4036 {
4037         WantSyncData *want_sync_data = (WantSyncData *)data;
4038
4039         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4040                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4041                         want_sync_data->want_sync |= TRUE;
4042         }
4043 }
4044
4045 gboolean folder_want_synchronise(Folder *folder)
4046 {
4047         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4048         gboolean result;
4049         want_sync_data->folder = folder;
4050         want_sync_data->want_sync = FALSE;
4051
4052         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4053         result = want_sync_data->want_sync;
4054         g_free(want_sync_data);
4055         if (result > 0)
4056                 debug_print("Folder %s wants sync\n", folder->name);
4057         return result;
4058 }
4059
4060 void folder_item_set_batch (FolderItem *item, gboolean batch)
4061 {
4062         if (item->folder->klass->set_batch) {
4063                 item->folder->klass->set_batch(item->folder, item, batch);
4064         }
4065 }
4066
4067 gboolean folder_has_parent_of_type(FolderItem *item,
4068                                           SpecialFolderItemType type)
4069 {
4070         FolderItem *cur = item;
4071
4072         /* if we already know it, make it short */
4073         if (item->parent_stype != -1) {
4074                 return (item->parent_stype == type);
4075         }
4076
4077         /* if we don't, find the type from the first possible parent,
4078          * and set our parent type to be faster next time */
4079         while (cur) {
4080                 if (cur->stype == type || cur->parent_stype == type) {
4081                         item->parent_stype = type;
4082                         return TRUE;
4083                 }
4084                 cur = folder_item_parent(cur);
4085         }
4086
4087         /* if we didn't match what was asked, we didn't return. If our
4088          * parent type is unknown, we may as well find it now to be faster
4089          * later. */
4090         if (item->parent_stype == -1) {
4091                 cur = item;
4092                 while (cur) {
4093                         /* here's an exception: Inbox subfolders are normal. */
4094                         if (item->parent_stype == -1 && cur->stype == F_INBOX
4095                         && item != cur) {
4096                                 item->parent_stype = F_NORMAL;
4097                                 break;
4098                         }
4099                         /* ah, we know this parent's parent's type, we may as
4100                          * well copy it instead of going up the full way */
4101                         if (cur->parent_stype != -1) {
4102                                 item->parent_stype = cur->parent_stype;
4103                                 break;
4104                         }
4105                         /* we found a parent that has a special type. That's
4106                          * our parent type. */
4107                         if (cur->stype != F_NORMAL) {
4108                                 cur->parent_stype = cur->stype;
4109                                 item->parent_stype = cur->stype;
4110                                 break;
4111                         }
4112                         /* if we didn't find anything, go up once more */
4113                         cur = folder_item_parent(cur);
4114                 }
4115                 /* as we still didn't find anything, our parents must all be
4116                  * normal. */
4117                 if (item->parent_stype == -1) {
4118                         item->parent_stype = F_NORMAL;
4119                 }
4120         }
4121         return FALSE;
4122 }
4123
4124 gboolean folder_subscribe (const gchar *uri)
4125 {
4126         GList *cur;
4127         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4128                 Folder *folder = (Folder *) cur->data;
4129
4130                 if (folder->klass->subscribe
4131                 &&  folder->klass->subscribe(folder, uri)) {
4132                         return TRUE;
4133                 }
4134         }
4135         return FALSE;
4136
4137 }
4138
4139 gboolean folder_get_sort_type           (Folder         *folder,
4140                                          FolderSortKey  *sort_key,
4141                                          FolderSortType *sort_type)
4142 {
4143         if (!folder || !sort_key || !sort_type)
4144                 return FALSE;
4145         if (folder->klass->get_sort_type == NULL)
4146                 return FALSE;
4147         folder->klass->get_sort_type(folder, sort_key, sort_type);
4148         return TRUE;
4149 }
4150
4151 #undef PUT_ESCAPE_STR