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 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33 #include <stdlib.h>
  34 #ifdef WIN32
  35 #include <w32lib.h>
  36 #endif
  37
  38 #include "folder.h"
  39 #include "session.h"
  40 #include "inc.h"
  41 #include "imap.h"
  42 #include "news.h"
  43 #include "mh.h"
  44 #include "utils.h"
  45 #include "xml.h"
  46 #include "codeconv.h"
  47 #include "prefs_gtk.h"
  48 #include "account.h"
  49 #include "filtering.h"
  50 #include "procheader.h"
  51 #include "hooks.h"
  52 #include "log.h"
  53 #include "folder_item_prefs.h"
  54 #include "remotefolder.h"
  55 #include "partial_download.h"
  56 #include "statusbar.h"
  57 #include "gtkutils.h"
  58 #include "timing.h"
  59 #include "compose.h"
  60 #include "main.h"
  61
  62 /* Dependecies to be removed ?! */
  63 #include "prefs_common.h"
  64 #include "prefs_account.h"
  65
  66 /* Define possible missing constants for Windows. */
  67 #ifdef G_OS_WIN32
  68 # ifndef S_IRGRP
  69 # define S_IRGRP 0
  70 # define S_IWGRP 0
  71 # endif
  72 # ifndef S_IROTH
  73 # define S_IROTH 0
  74 # define S_IWOTH 0
  75 # endif
  76 #endif
  77
  78 static GList *folder_list = NULL;
  79 static GSList *class_list = NULL;
  80 static GSList *folder_unloaded_list = NULL;
  81
  82 void folder_init                (Folder         *folder,
  83                                  const gchar    *name);
  84
  85 static gchar *folder_item_get_cache_file        (FolderItem     *item);
  86 static gchar *folder_item_get_mark_file (FolderItem     *item);
  87 static gchar *folder_item_get_tags_file (FolderItem     *item);
  88 static gchar *folder_get_list_path      (void);
  89 static GNode *folder_get_xml_node       (Folder         *folder);
  90 static Folder *folder_get_from_xml      (GNode          *node);
  91 static void folder_update_op_count_rec  (GNode          *node);
  92
  93
  94 static void folder_get_persist_prefs_recursive
  95                                         (GNode *node, GHashTable *pptable);
  96 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  97 static void folder_item_read_cache              (FolderItem *item);
  98 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  99 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
 100                                          MsgInfo *msg);
 101 static GHashTable *folder_persist_prefs_new     (Folder *folder);
 102 static void folder_persist_prefs_free           (GHashTable *pptable);
 103 static void folder_item_restore_persist_prefs   (FolderItem *item, GHashTable *pptable);
 104
 105 void folder_system_init(void)
 106 {
 107         folder_register_class(mh_get_class());
 108         folder_register_class(imap_get_class());
 109         folder_register_class(news_get_class());
 110 }
 111
 112 static GSList *folder_get_class_list(void)
 113 {
 114         return class_list;
 115 }
 116
 117 void folder_register_class(FolderClass *klass)
 118 {
 119         GSList *xmllist, *cur;
 120
 121         debug_print("registering folder class %s\n", klass->idstr);
 122
 123         class_list = g_slist_append(class_list, klass);
 124
 125         xmllist = g_slist_copy(folder_unloaded_list);
 126         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
 127                 GNode *node = (GNode *) cur->data;
 128                 XMLNode *xmlnode = (XMLNode *) node->data;
 129                 GList *cur = xmlnode->tag->attr;
 130
 131                 for (; cur != NULL; cur = g_list_next(cur)) {
 132                         XMLAttr *attr = (XMLAttr *) cur->data;
 133
 134                         if (!attr || !attr->name || !attr->value) continue;
 135                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
 136                                 Folder *folder;
 137
 138                                 folder = folder_get_from_xml(node);
 139                                 folder_add(folder);
 140                                 folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
 141
 142                                 cur = NULL;
 143                                 continue;
 144                         }
 145                 }
 146         }
 147         g_slist_free(xmllist);
 148 }
 149
 150 void folder_unregister_class(FolderClass *klass)
 151 {
 152         GList *folderlist, *cur;
 153
 154         debug_print("unregistering folder class %s\n", klass->idstr);
 155
 156         class_list = g_slist_remove(class_list, klass);
 157
 158         folderlist = g_list_copy(folder_get_list());
 159         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 160                 Folder *folder = (Folder *) cur->data;
 161
 162                 if (folder->klass == klass) {
 163                         GNode *xmlnode = folder_get_xml_node(folder);
 164                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
 165                         folder_destroy(folder);
 166                 }
 167         }
 168         g_list_free(folderlist);
 169 }
 170
 171 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 172 {
 173         Folder *folder = NULL;
 174         FolderItem *item;
 175
 176         g_return_val_if_fail(klass != NULL, NULL);
 177
 178         name = name ? name : path;
 179         folder = klass->new_folder(name, path);
 180
 181         /* Create root folder item */
 182         item = folder_item_new(folder, name, NULL);
 183         if (item == NULL) {
 184                 return NULL;
 185         }
 186         item->folder = folder;
 187         folder->node = item->node = g_node_new(item);
 188         folder->data = NULL;
 189
 190         return folder;
 191 }
 192
 193 void folder_init(Folder *folder, const gchar *name)
 194 {
 195         g_return_if_fail(folder != NULL);
 196
 197         folder_set_name(folder, name);
 198
 199         /* Init folder data */
 200         folder->account = NULL;
 201         folder->sort = 0;
 202         folder->inbox = NULL;
 203         folder->outbox = NULL;
 204         folder->draft = NULL;
 205         folder->queue = NULL;
 206         folder->trash = NULL;
 207 }
 208
 209 static void reset_parent_type(FolderItem *item, gpointer data) {
 210         item->parent_stype = -1;
 211 }
 212
 213 void folder_item_change_type(FolderItem *item, SpecialFolderItemType newtype)
 214 {
 215         Folder *folder = NULL;
 216         FolderUpdateData hookdata;
 217
 218         if (item == NULL)
 219                 return;
 220
 221         folder = item->folder;
 222         /* unset previous root of newtype */
 223         switch(newtype) {
 224         case F_INBOX:
 225                 folder_item_change_type(folder->inbox, F_NORMAL);
 226                 folder->inbox = item;
 227                 break;
 228         case F_OUTBOX:
 229                 folder_item_change_type(folder->outbox, F_NORMAL);
 230                 folder->outbox = item;
 231                 break;
 232         case F_QUEUE:
 233                 folder_item_change_type(folder->queue, F_NORMAL);
 234                 folder->queue = item;
 235                 break;
 236         case F_DRAFT:
 237                 folder_item_change_type(folder->draft, F_NORMAL);
 238                 folder->draft = item;
 239                 break;
 240         case F_TRASH:
 241                 folder_item_change_type(folder->trash, F_NORMAL);
 242                 folder->trash = item;
 243                 break;
 244         case F_NORMAL:
 245         default:
 246                 break;
 247         }
 248         /* set new type for current folder and sons */
 249         item->stype = newtype;
 250         folder_func_to_all_folders(reset_parent_type, NULL);
 251
 252         hookdata.folder = folder;
 253         hookdata.update_flags = FOLDER_TREE_CHANGED;
 254         hookdata.item = NULL;
 255         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 256 }
 257
 258 void folder_destroy(Folder *folder)
 259 {
 260         g_return_if_fail(folder != NULL);
 261         g_return_if_fail(folder->klass->destroy_folder != NULL);
 262
 263         folder_remove(folder);
 264
 265         folder_tree_destroy(folder);
 266
 267         folder->klass->destroy_folder(folder);
 268
 269         g_free(folder->name);
 270         g_free(folder);
 271 }
 272
 273 void folder_set_xml(Folder *folder, XMLTag *tag)
 274 {
 275         GList *cur;
 276         FolderItem *rootitem = NULL;
 277
 278         if ((folder->node != NULL) && (folder->node->data != NULL))
 279                 rootitem = (FolderItem *) folder->node->data;
 280
 281         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 282                 XMLAttr *attr = (XMLAttr *) cur->data;
 283
 284                 if (!attr || !attr->name || !attr->value) continue;
 285                 if (!strcmp(attr->name, "name")) {
 286                         g_free(folder->name);
 287                         folder->name = g_strdup(attr->value);
 288                         if (rootitem != NULL) {
 289                                 g_free(rootitem->name);
 290                                 rootitem->name = g_strdup(attr->value);
 291                         }
 292                 } else if (!strcmp(attr->name, "account_id")) {
 293                         PrefsAccount *account;
 294
 295                         account = account_find_from_id(atoi(attr->value));
 296                         if (!account)
 297                                 g_warning("account_id: %s not found\n", attr->value);
 298                         else {
 299                                 folder->account = account;
 300                                 account->folder = folder;
 301                         }
 302                 } else if (!strcmp(attr->name, "collapsed")) {
 303                         if (rootitem != NULL)
 304                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 305                 } else if (!strcmp(attr->name, "sort")) {
 306                         folder->sort = atoi(attr->value);
 307                 }
 308         }
 309 }
 310
 311 XMLTag *folder_get_xml(Folder *folder)
 312 {
 313         XMLTag *tag;
 314
 315         tag = xml_tag_new("folder");
 316
 317         if (folder->name)
 318                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
 319         if (folder->account)
 320                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
 321         if (folder->node && folder->node->data) {
 322                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 323
 324                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
 325         }
 326         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
 327
 328         return tag;
 329 }
 330
 331 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 332 {
 333         FolderItem *item = NULL;
 334
 335         g_return_val_if_fail(folder != NULL, NULL);
 336
 337         if (folder->klass->item_new) {
 338                 item = folder->klass->item_new(folder);
 339         } else {
 340                 item = g_new0(FolderItem, 1);
 341         }
 342
 343         g_return_val_if_fail(item != NULL, NULL);
 344
 345         item->stype = F_NORMAL;
 346         item->name = g_strdup(name);
 347         item->path = g_strdup(path);
 348         item->mtime = 0;
 349         item->new_msgs = 0;
 350         item->unread_msgs = 0;
 351         item->unreadmarked_msgs = 0;
 352         item->marked_msgs = 0;
 353         item->total_msgs = 0;
 354         item->order = 0;
 355         item->last_num = -1;
 356         item->cache = NULL;
 357         item->no_sub = FALSE;
 358         item->no_select = FALSE;
 359         item->collapsed = FALSE;
 360         item->thread_collapsed = FALSE;
 361         item->threaded  = TRUE;
 362         item->ret_rcpt  = FALSE;
 363         item->opened    = FALSE;
 364         item->node = g_node_new(item);
 365         item->folder = NULL;
 366         item->account = NULL;
 367         item->apply_sub = FALSE;
 368         item->mark_queue = NULL;
 369         item->data = NULL;
 370         item->parent_stype = -1;
 371
 372         item->sort_key = SORT_BY_DATE;
 373         item->sort_type = SORT_ASCENDING;
 374
 375         item->prefs = folder_item_prefs_new();
 376
 377         return item;
 378 }
 379
 380 void folder_item_append(FolderItem *parent, FolderItem *item)
 381 {
 382         g_return_if_fail(parent != NULL);
 383         g_return_if_fail(parent->folder != NULL);
 384         g_return_if_fail(parent->node != NULL);
 385         g_return_if_fail(item != NULL);
 386
 387         item->folder = parent->folder;
 388         g_node_append(parent->node, item->node);
 389 }
 390
 391 void folder_item_remove(FolderItem *item)
 392 {
 393         GNode *node, *start_node;
 394         FolderUpdateData hookdata;
 395
 396         g_return_if_fail(item != NULL);
 397         g_return_if_fail(item->folder != NULL);
 398         g_return_if_fail(item->folder->node != NULL);
 399
 400         start_node = node = item->node;
 401
 402         node = item->folder->node;
 403
 404         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 405         node = node->children;
 406
 407         /* remove my children */
 408         while (node != NULL) {
 409                 if (node && node->data) {
 410                         FolderItem *sub_item = (FolderItem*) node->data;
 411                         node = node->next;
 412                         folder_item_remove(sub_item);
 413                 }
 414         }
 415
 416         /* remove myself */
 417         if (item->cache != NULL) {
 418                 msgcache_destroy(item->cache);
 419                 item->cache = NULL;
 420         }
 421
 422         hookdata.folder = item->folder;
 423         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 424         hookdata.item = item;
 425         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 426
 427         node = start_node;
 428
 429         if (item->folder->node == node)
 430                 item->folder->node = NULL;
 431
 432         folder_item_destroy(item);
 433
 434         g_node_destroy(node);
 435 }
 436
 437 void folder_item_remove_children(FolderItem *item)
 438 {
 439         GNode *node, *next;
 440
 441         g_return_if_fail(item != NULL);
 442         g_return_if_fail(item->folder != NULL);
 443         g_return_if_fail(item->node != NULL);
 444
 445         node = item->node->children;
 446         while (node != NULL) {
 447                 next = node->next;
 448                 folder_item_remove(FOLDER_ITEM(node->data));
 449                 node = next;
 450         }
 451 }
 452
 453 void folder_item_destroy(FolderItem *item)
 454 {
 455         Folder *folder;
 456
 457         g_return_if_fail(item != NULL);
 458
 459         folder = item->folder;
 460         if (folder) {
 461                 if (folder->inbox == item)
 462                         folder->inbox = NULL;
 463                 else if (folder->outbox == item)
 464                         folder->outbox = NULL;
 465                 else if (folder->draft == item)
 466                         folder->draft = NULL;
 467                 else if (folder->queue == item)
 468                         folder->queue = NULL;
 469                 else if (folder->trash == item)
 470                         folder->trash = NULL;
 471         }
 472
 473         if (item->cache)
 474                 folder_item_free_cache(item, TRUE);
 475         if (item->prefs)
 476                 folder_item_prefs_free(item->prefs);
 477         g_free(item->name);
 478         g_free(item->path);
 479
 480         if (item->folder != NULL) {
 481                 if(item->folder->klass->item_destroy) {
 482                         item->folder->klass->item_destroy(item->folder, item);
 483                 } else {
 484                         g_free(item);
 485                 }
 486         }
 487 }
 488
 489 FolderItem *folder_item_parent(FolderItem *item)
 490 {
 491         g_return_val_if_fail(item != NULL, NULL);
 492         g_return_val_if_fail(item->node != NULL, NULL);
 493
 494         if (item->node->parent == NULL)
 495                 return NULL;
 496         return (FolderItem *) item->node->parent->data;
 497 }
 498
 499 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 500 {
 501         GList *cur;
 502
 503         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 504                 XMLAttr *attr = (XMLAttr *) cur->data;
 505
 506                 if (!attr || !attr->name || !attr->value) continue;
 507                 if (!strcmp(attr->name, "type")) {
 508                         if (!g_ascii_strcasecmp(attr->value, "normal"))
 509                                 item->stype = F_NORMAL;
 510                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
 511                                 item->stype = F_INBOX;
 512                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
 513                                 item->stype = F_OUTBOX;
 514                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
 515                                 item->stype = F_DRAFT;
 516                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
 517                                 item->stype = F_QUEUE;
 518                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
 519                                 item->stype = F_TRASH;
 520                 } else if (!strcmp(attr->name, "name")) {
 521                         g_free(item->name);
 522                         item->name = g_strdup(attr->value);
 523                 } else if (!strcmp(attr->name, "path")) {
 524                         g_free(item->path);
 525                         item->path = g_strdup(attr->value);
 526                 } else if (!strcmp(attr->name, "mtime"))
 527                         item->mtime = strtoul(attr->value, NULL, 10);
 528                 else if (!strcmp(attr->name, "new"))
 529                         item->new_msgs = atoi(attr->value);
 530                 else if (!strcmp(attr->name, "unread"))
 531                         item->unread_msgs = atoi(attr->value);
 532                 else if (!strcmp(attr->name, "unreadmarked"))
 533                         item->unreadmarked_msgs = atoi(attr->value);
 534                 else if (!strcmp(attr->name, "marked"))
 535                         item->marked_msgs = atoi(attr->value);
 536                 else if (!strcmp(attr->name, "order"))
 537                         item->order = atoi(attr->value);
 538                 else if (!strcmp(attr->name, "total"))
 539                         item->total_msgs = atoi(attr->value);
 540                 else if (!strcmp(attr->name, "no_sub"))
 541                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 542                 else if (!strcmp(attr->name, "no_select"))
 543                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 544                 else if (!strcmp(attr->name, "collapsed"))
 545                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 546                 else if (!strcmp(attr->name, "thread_collapsed"))
 547                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 548                 else if (!strcmp(attr->name, "threaded"))
 549                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 550                 else if (!strcmp(attr->name, "hidereadmsgs"))
 551                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 552                 else if (!strcmp(attr->name, "reqretrcpt"))
 553                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 554                 else if (!strcmp(attr->name, "sort_key")) {
 555                         if (!strcmp(attr->value, "none"))
 556                                 item->sort_key = SORT_BY_NONE;
 557                         else if (!strcmp(attr->value, "number"))
 558                                 item->sort_key = SORT_BY_NUMBER;
 559                         else if (!strcmp(attr->value, "size"))
 560                                 item->sort_key = SORT_BY_SIZE;
 561                         else if (!strcmp(attr->value, "date"))
 562                                 item->sort_key = SORT_BY_DATE;
 563                         else if (!strcmp(attr->value, "from"))
 564                                 item->sort_key = SORT_BY_FROM;
 565                         else if (!strcmp(attr->value, "subject"))
 566                                 item->sort_key = SORT_BY_SUBJECT;
 567                         else if (!strcmp(attr->value, "score"))
 568                                 item->sort_key = SORT_BY_SCORE;
 569                         else if (!strcmp(attr->value, "label"))
 570                                 item->sort_key = SORT_BY_LABEL;
 571                         else if (!strcmp(attr->value, "mark"))
 572                                 item->sort_key = SORT_BY_MARK;
 573                         else if (!strcmp(attr->value, "unread"))
 574                                 item->sort_key = SORT_BY_STATUS;
 575                         else if (!strcmp(attr->value, "mime"))
 576                                 item->sort_key = SORT_BY_MIME;
 577                         else if (!strcmp(attr->value, "to"))
 578                                 item->sort_key = SORT_BY_TO;
 579                         else if (!strcmp(attr->value, "locked"))
 580                                 item->sort_key = SORT_BY_LOCKED;
 581                         else if (!strcmp(attr->value, "tags"))
 582                                 item->sort_key = SORT_BY_TAGS;
 583                         else if (!strcmp(attr->value, "thread_date"))
 584                                 item->sort_key = SORT_BY_THREAD_DATE;
 585                 } else if (!strcmp(attr->name, "sort_type")) {
 586                         if (!strcmp(attr->value, "ascending"))
 587                                 item->sort_type = SORT_ASCENDING;
 588                         else
 589                                 item->sort_type = SORT_DESCENDING;
 590                 } else if (!strcmp(attr->name, "account_id")) {
 591                         PrefsAccount *account;
 592
 593                         account = account_find_from_id(atoi(attr->value));
 594                         if (!account)
 595                                 g_warning("account_id: %s not found\n", attr->value);
 596                         else
 597                                 item->account = account;
 598                 } else if (!strcmp(attr->name, "apply_sub")) {
 599                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 600                 } else if (!strcmp(attr->name, "last_seen")) {
 601                         if (!claws_crashed())
 602                                 item->last_seen = atoi(attr->value);
 603                         else
 604                                 item->last_seen = 0;
 605                 }
 606         }
 607 }
 608
 609 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 610 {
 611         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 612                                                  "draft", "queue", "trash"};
 613         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 614                                         "from", "subject", "score", "label",
 615                                         "mark", "unread", "mime", "to",
 616                                         "locked", "tags", "thread_date" };
 617         XMLTag *tag;
 618         gchar *value;
 619
 620         tag = xml_tag_new("folderitem");
 621
 622         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
 623         if (item->name)
 624                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
 625         if (item->path)
 626                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
 627         if (item->no_sub)
 628                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
 629         if (item->no_select)
 630                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
 631         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
 632         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
 633         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
 634         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
 635         if (item->ret_rcpt)
 636                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
 637
 638         if (item->sort_key != SORT_BY_NONE) {
 639                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
 640                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 641         }
 642
 643         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
 644         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
 645         g_free(value);
 646         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
 647         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
 648         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
 649         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
 650         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
 651         xml_tag_add_attr(tag, xml_attr_new_int("order", item->order));
 652
 653         if (item->account)
 654                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
 655         if (item->apply_sub)
 656                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
 657
 658         xml_tag_add_attr(tag, xml_attr_new_int("last_seen", item->last_seen));
 659
 660         return tag;
 661 }
 662
 663 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 664 {
 665         g_return_if_fail(folder != NULL);
 666
 667         folder->ui_func = func;
 668         folder->ui_func_data = data;
 669 }
 670
 671 void folder_set_name(Folder *folder, const gchar *name)
 672 {
 673         g_return_if_fail(folder != NULL);
 674
 675         g_free(folder->name);
 676         folder->name = name ? g_strdup(name) : NULL;
 677         if (folder->node && folder->node->data) {
 678                 FolderItem *item = (FolderItem *)folder->node->data;
 679
 680                 g_free(item->name);
 681                 item->name = name ? g_strdup(name) : NULL;
 682         }
 683 }
 684
 685 void folder_set_sort(Folder *folder, guint sort)
 686 {
 687         g_return_if_fail(folder != NULL);
 688
 689         if (folder->sort != sort) {
 690                 folder_remove(folder);
 691                 folder->sort = sort;
 692                 folder_add(folder);
 693         }
 694 }
 695
 696 static gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 697         FolderItem *item = (FolderItem *) node->data;
 698
 699         folder_item_destroy(item);
 700         return FALSE;
 701 }
 702
 703 void folder_tree_destroy(Folder *folder)
 704 {
 705         GNode *node;
 706
 707         g_return_if_fail(folder != NULL);
 708
 709         node = folder->node;
 710
 711         prefs_filtering_clear_folder(folder);
 712
 713         if (node != NULL) {
 714                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 715                                 folder_tree_destroy_func, NULL);
 716                 g_node_destroy(node);
 717                 folder->node = NULL;
 718         }
 719 }
 720
 721 void folder_add(Folder *folder)
 722 {
 723         Folder *cur_folder;
 724         GList *cur;
 725         gint i;
 726         FolderUpdateData hookdata;
 727
 728         g_return_if_fail(folder != NULL);
 729
 730         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 731                 cur_folder = FOLDER(cur->data);
 732                 if (cur_folder->sort < folder->sort)
 733                         break;
 734         }
 735
 736         folder_list = g_list_insert(folder_list, folder, i);
 737
 738         hookdata.folder = folder;
 739         hookdata.update_flags = FOLDER_ADD_FOLDER;
 740         hookdata.item = NULL;
 741         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 742 }
 743
 744 void folder_remove(Folder *folder)
 745 {
 746         FolderUpdateData hookdata;
 747
 748         g_return_if_fail(folder != NULL);
 749
 750         folder_list = g_list_remove(folder_list, folder);
 751
 752         hookdata.folder = folder;
 753         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
 754         hookdata.item = NULL;
 755         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 756 }
 757
 758 GList *folder_get_list(void)
 759 {
 760         return folder_list;
 761 }
 762
 763 gint folder_read_list(void)
 764 {
 765         GNode *node, *cur;
 766         XMLNode *xmlnode;
 767         gchar *path;
 768
 769         path = folder_get_list_path();
 770         if (!is_file_exist(path)) return -1;
 771         node = xml_parse_file(path);
 772         if (!node) return -1;
 773
 774         xmlnode = node->data;
 775         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 776                 g_warning("wrong folder list\n");
 777                 xml_free_tree(node);
 778                 return -1;
 779         }
 780
 781         cur = node->children;
 782         while (cur != NULL) {
 783                 Folder *folder;
 784
 785                 folder = folder_get_from_xml(cur);
 786                 if (folder != NULL)
 787                         folder_add(folder);
 788                 else
 789                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 790                                 (gpointer) xml_copy_tree(cur));
 791                 cur = cur->next;
 792         }
 793
 794         xml_free_tree(node);
 795         if (folder_list || folder_unloaded_list)
 796                 return 0;
 797         else
 798                 return -1;
 799 }
 800
 801 void folder_write_list(void)
 802 {
 803         GList *list;
 804         GSList *slist;
 805         Folder *folder;
 806         gchar *path;
 807         PrefFile *pfile;
 808         GNode *rootnode;
 809         XMLNode *xmlnode;
 810         XMLTag *tag;
 811
 812         path = folder_get_list_path();
 813         if ((pfile = prefs_write_open(path)) == NULL) return;
 814
 815         if (xml_file_put_xml_decl(pfile->fp) < 0) {
 816                 prefs_file_close_revert(pfile);
 817                 g_warning("failed to start write folder list.\n");
 818                 return;
 819         }
 820         tag = xml_tag_new("folderlist");
 821
 822         xmlnode = xml_node_new(tag, NULL);
 823
 824         rootnode = g_node_new(xmlnode);
 825
 826         for (list = folder_list; list != NULL; list = list->next) {
 827                 GNode *node;
 828
 829                 folder = list->data;
 830                 node = folder_get_xml_node(folder);
 831                 if (node != NULL)
 832                         g_node_append(rootnode, node);
 833         }
 834
 835         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 836                 GNode *node = (GNode *) slist->data;
 837
 838                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
 839         }
 840
 841         if (xml_write_tree(rootnode, pfile->fp) < 0) {
 842                 prefs_file_close_revert(pfile);
 843                 g_warning("failed to write folder list.\n");
 844         } else if (prefs_file_close(pfile) < 0) {
 845                 g_warning("failed to write folder list.\n");
 846         }
 847         xml_free_tree(rootnode);
 848 }
 849
 850 static gboolean folder_scan_tree_func(GNode *node, gpointer data)
 851 {
 852         GHashTable *pptable = (GHashTable *)data;
 853         FolderItem *item = (FolderItem *)node->data;
 854
 855         folder_item_restore_persist_prefs(item, pptable);
 856         folder_item_scan_full(item, FALSE);
 857
 858         return FALSE;
 859 }
 860
 861 void folder_scan_tree(Folder *folder, gboolean rebuild)
 862 {
 863         GHashTable *pptable;
 864         FolderUpdateData hookdata;
 865         Folder *old_folder = folder;
 866
 867         if (!folder->klass->scan_tree)
 868                 return;
 869
 870         pptable = folder_persist_prefs_new(folder);
 871
 872         if (rebuild)
 873                 folder_remove(folder);
 874
 875         if (folder->klass->scan_tree(folder) < 0) {
 876                 if (rebuild)
 877                         folder_add(old_folder);
 878                 return;
 879         } else if (rebuild)
 880                 folder_add(folder);
 881
 882         hookdata.folder = folder;
 883         hookdata.update_flags = FOLDER_TREE_CHANGED;
 884         hookdata.item = NULL;
 885         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 886
 887         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 888         folder_persist_prefs_free(pptable);
 889
 890         prefs_matcher_read_config();
 891
 892         folder_write_list();
 893 }
 894
 895 static gboolean folder_restore_prefs_func(GNode *node, gpointer data)
 896 {
 897         GHashTable *pptable = (GHashTable *)data;
 898         FolderItem *item = (FolderItem *)node->data;
 899
 900         folder_item_restore_persist_prefs(item, pptable);
 901
 902         return FALSE;
 903 }
 904
 905 void folder_fast_scan_tree(Folder *folder)
 906 {
 907         GHashTable *pptable;
 908         FolderUpdateData hookdata;
 909
 910         if (!folder->klass->scan_tree)
 911                 return;
 912
 913         pptable = folder_persist_prefs_new(folder);
 914
 915         if (folder->klass->scan_tree(folder) < 0) {
 916                 return;
 917         }
 918
 919         hookdata.folder = folder;
 920         hookdata.update_flags = FOLDER_TREE_CHANGED;
 921         hookdata.item = NULL;
 922         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 923
 924         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_restore_prefs_func, pptable);
 925         folder_persist_prefs_free(pptable);
 926
 927         prefs_matcher_read_config();
 928
 929         folder_write_list();
 930 }
 931
 932 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 933 {
 934         FolderItem *new_item;
 935
 936         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 937         if (new_item) {
 938                 FolderUpdateData hookdata;
 939
 940                 new_item->cache = msgcache_new();
 941
 942                 hookdata.folder = new_item->folder;
 943                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
 944                 hookdata.item = new_item;
 945                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 946         }
 947
 948         return new_item;
 949 }
 950
 951 gint folder_item_rename(FolderItem *item, gchar *newname)
 952 {
 953         gint retval;
 954
 955         g_return_val_if_fail(item != NULL, -1);
 956         g_return_val_if_fail(newname != NULL, -1);
 957
 958         retval = item->folder->klass->rename_folder(item->folder, item, newname);
 959
 960         if (retval >= 0) {
 961                 FolderItemUpdateData hookdata;
 962                 FolderUpdateData hookdata2;
 963
 964                 hookdata.item = item;
 965                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
 966                 hookdata.msg = NULL;
 967                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
 968
 969                 hookdata2.folder = item->folder;
 970                 hookdata2.item = item;
 971                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
 972                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
 973         }
 974
 975         return retval;
 976 }
 977
 978 struct TotalMsgCount
 979 {
 980         guint new_msgs;
 981         guint unread_msgs;
 982         guint unreadmarked_msgs;
 983         guint marked_msgs;
 984         guint total_msgs;
 985 };
 986
 987 struct FuncToAllFoldersData
 988 {
 989         FolderItemFunc  function;
 990         gpointer        data;
 991 };
 992
 993 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
 994 {
 995         FolderItem *item;
 996         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
 997
 998         g_return_val_if_fail(node->data != NULL, FALSE);
 999
1000         item = FOLDER_ITEM(node->data);
1001         g_return_val_if_fail(item != NULL, FALSE);
1002
1003         function_data->function(item, function_data->data);
1004
1005         return FALSE;
1006 }
1007
1008 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
1009 {
1010         GList *list;
1011         Folder *folder;
1012         struct FuncToAllFoldersData function_data;
1013
1014         function_data.function = function;
1015         function_data.data = data;
1016
1017         for (list = folder_list; list != NULL; list = list->next) {
1018                 folder = FOLDER(list->data);
1019                 if (folder->node)
1020                         g_node_traverse(folder->node, G_PRE_ORDER,
1021                                         G_TRAVERSE_ALL, -1,
1022                                         folder_func_to_all_folders_func,
1023                                         &function_data);
1024         }
1025 }
1026
1027 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
1028 {
1029         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
1030
1031         count->new_msgs += item->new_msgs;
1032         count->unread_msgs += item->unread_msgs;
1033         count->unreadmarked_msgs += item->unreadmarked_msgs;
1034         count->marked_msgs += item->marked_msgs;
1035         count->total_msgs += item->total_msgs;
1036 }
1037
1038 struct TotalMsgStatus
1039 {
1040         guint new;
1041         guint unread;
1042         guint total;
1043         GString *str;
1044 };
1045
1046 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
1047 {
1048         FolderItem *item;
1049         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
1050         gchar *id;
1051
1052         g_return_val_if_fail(node->data != NULL, FALSE);
1053
1054         item = FOLDER_ITEM(node->data);
1055
1056         if (!item->path) return FALSE;
1057
1058         status->new += item->new_msgs;
1059         status->unread += item->unread_msgs;
1060         status->total += item->total_msgs;
1061
1062         if (status->str) {
1063                 id = folder_item_get_identifier(item);
1064                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
1065                                   item->new_msgs, item->unread_msgs,
1066                                   item->total_msgs, id);
1067                 g_free(id);
1068         }
1069
1070         return FALSE;
1071  }
1072
1073 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
1074                                        guint *total)
1075 {
1076         GList *list;
1077         Folder *folder;
1078         struct TotalMsgStatus status;
1079
1080         status.new = status.unread = status.total = 0;
1081         status.str = str;
1082
1083         debug_print("Counting total number of messages...\n");
1084
1085         for (list = folder_list; list != NULL; list = list->next) {
1086                 folder = FOLDER(list->data);
1087                 if (folder->node)
1088                         g_node_traverse(folder->node, G_PRE_ORDER,
1089                                         G_TRAVERSE_ALL, -1,
1090                                         folder_get_status_full_all_func,
1091                                         &status);
1092         }
1093
1094         *new = status.new;
1095         *unread = status.unread;
1096         *total = status.total;
1097 }
1098
1099 gchar *folder_get_status(GPtrArray *folders, gboolean full)
1100 {
1101         guint new, unread, total;
1102         GString *str;
1103         gint i;
1104         gchar *ret;
1105
1106         new = unread = total = 0;
1107
1108         str = g_string_new(NULL);
1109
1110         if (folders) {
1111                 for (i = 0; i < folders->len; i++) {
1112                         FolderItem *item;
1113
1114                         item = g_ptr_array_index(folders, i);
1115                         new += item->new_msgs;
1116                         unread += item->unread_msgs;
1117                         total += item->total_msgs;
1118
1119                         if (full) {
1120                                 gchar *id;
1121
1122                                 id = folder_item_get_identifier(item);
1123                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1124                                                   item->new_msgs, item->unread_msgs,
1125                                                   item->total_msgs, id);
1126                                 g_free(id);
1127                         }
1128                 }
1129         } else {
1130                 folder_get_status_full_all(full ? str : NULL,
1131                                            &new, &unread, &total);
1132         }
1133
1134         if (full)
1135                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1136         else
1137                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1138
1139         ret = str->str;
1140         g_string_free(str, FALSE);
1141
1142         return ret;
1143 }
1144
1145 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs,
1146                              guint *unreadmarked_msgs, guint *marked_msgs,
1147                              guint *total_msgs)
1148 {
1149         struct TotalMsgCount count;
1150
1151         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = count.total_msgs = 0;
1152
1153         debug_print("Counting total number of messages...\n");
1154
1155         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1156
1157         *new_msgs = count.new_msgs;
1158         *unread_msgs = count.unread_msgs;
1159         *unreadmarked_msgs = count.unreadmarked_msgs;
1160         *marked_msgs = count.marked_msgs;
1161         *total_msgs = count.total_msgs;
1162 }
1163
1164 Folder *folder_find_from_path(const gchar *path)
1165 {
1166         GList *list;
1167         Folder *folder;
1168
1169         for (list = folder_list; list != NULL; list = list->next) {
1170                 folder = list->data;
1171                 if ((FOLDER_TYPE(folder) == F_MH ||
1172                      FOLDER_TYPE(folder) == F_MBOX) &&
1173                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1174                         return folder;
1175         }
1176
1177         return NULL;
1178 }
1179
1180 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1181 {
1182         GList *list;
1183         Folder *folder;
1184
1185         for (list = folder_list; list != NULL; list = list->next) {
1186                 folder = list->data;
1187                 if (folder->klass == klass &&
1188                     strcmp2(name, folder->name) == 0)
1189                         return folder;
1190         }
1191
1192         return NULL;
1193 }
1194
1195 static gboolean folder_item_find_func(GNode *node, gpointer data)
1196 {
1197         FolderItem *item = node->data;
1198         gpointer *d = data;
1199         const gchar *path = d[0];
1200
1201         if (path_cmp(path, item->path) != 0)
1202                 return FALSE;
1203
1204         d[1] = item;
1205
1206         return TRUE;
1207 }
1208
1209 FolderItem *folder_find_item_from_path(const gchar *path)
1210 {
1211         Folder *folder;
1212         gpointer d[2];
1213         GList *list = folder_get_list();
1214
1215         folder = list ? list->data:NULL;
1216
1217         g_return_val_if_fail(folder != NULL, NULL);
1218
1219         d[0] = (gpointer)path;
1220         d[1] = NULL;
1221         while (d[1] == NULL && list) {
1222                 folder = FOLDER(list->data);
1223                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1224                         folder_item_find_func, d);
1225                 list = list->next;
1226         }
1227         return d[1];
1228 }
1229
1230 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1231 {
1232         GNode *node;
1233         FolderItem *child;
1234
1235         for (node = item->node->children; node != NULL; node = node->next) {
1236                 gchar *base;
1237                 child = FOLDER_ITEM(node->data);
1238                 base = g_path_get_basename(child->path);
1239                 if (strcmp2(base, name) == 0) {
1240                         g_free(base);
1241                         return child;
1242                 }
1243                 g_free(base);
1244         }
1245
1246         return NULL;
1247 }
1248
1249 FolderClass *folder_get_class_from_string(const gchar *str)
1250 {
1251         GSList *classlist;
1252
1253         classlist = folder_get_class_list();
1254         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1255                 FolderClass *class = (FolderClass *) classlist->data;
1256                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1257                         return class;
1258         }
1259
1260         return NULL;
1261 }
1262
1263 static gchar *folder_get_identifier(Folder *folder)
1264 {
1265         gchar *type_str;
1266
1267         g_return_val_if_fail(folder != NULL, NULL);
1268
1269         type_str = folder->klass->idstr;
1270         return g_strconcat("#", type_str, "/", folder->name, NULL);
1271 }
1272
1273 gchar *folder_item_get_identifier(FolderItem *item)
1274 {
1275         gchar *id = NULL;
1276         gchar *folder_id = NULL;
1277
1278         g_return_val_if_fail(item != NULL, NULL);
1279
1280         if (item->path == NULL)
1281                 return NULL;
1282
1283         folder_id = folder_get_identifier(item->folder);
1284         id = g_strconcat(folder_id, "/", item->path, NULL);
1285         g_free(folder_id);
1286
1287         return id;
1288 }
1289
1290 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1291 {
1292         Folder *folder;
1293         gpointer d[2];
1294         gchar *str;
1295         gchar *p;
1296         gchar *name;
1297         gchar *path;
1298         FolderClass *class;
1299
1300         g_return_val_if_fail(identifier != NULL, NULL);
1301
1302         if (*identifier != '#')
1303                 return folder_find_item_from_path(identifier);
1304
1305         Xstrdup_a(str, identifier, return NULL);
1306
1307         p = strchr(str, '/');
1308         if (!p)
1309                 return folder_find_item_from_path(identifier);
1310         *p = '\0';
1311         p++;
1312         class = folder_get_class_from_string(&str[1]);
1313         if (class == NULL)
1314                 return folder_find_item_from_path(identifier);
1315
1316         name = p;
1317         p = strchr(p, '/');
1318         if (!p)
1319                 return folder_find_item_from_path(identifier);
1320         *p = '\0';
1321         p++;
1322
1323         folder = folder_find_from_name(name, class);
1324         if (!folder)
1325                 return folder_find_item_from_path(identifier);
1326
1327         path = p;
1328
1329         d[0] = (gpointer)path;
1330         d[1] = NULL;
1331         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1332                         folder_item_find_func, d);
1333         return d[1];
1334 }
1335
1336 /**
1337  * Get a displayable name for a FolderItem
1338  *
1339  * \param item FolderItem for that a name should be created
1340  * \return Displayable name for item, returned string has to
1341  *         be freed
1342  */
1343 gchar *folder_item_get_name(FolderItem *item)
1344 {
1345         gchar *name = NULL;
1346
1347         g_return_val_if_fail(item != NULL, g_strdup(""));
1348
1349         switch (item->stype) {
1350         case F_INBOX:
1351                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1352                                 item->name);
1353                 break;
1354         case F_OUTBOX:
1355                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1356                                 item->name);
1357                 break;
1358         case F_QUEUE:
1359                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1360                                 item->name);
1361                 break;
1362         case F_TRASH:
1363                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1364                                 item->name);
1365                 break;
1366         case F_DRAFT:
1367                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1368                                 item->name);
1369                 break;
1370         default:
1371                 break;
1372         }
1373
1374         if (name == NULL) {
1375                 /*
1376                  * should probably be done by a virtual function,
1377                  * the folder knows the ui string and how to abbrev
1378                 */
1379                 if (folder_item_parent(item) == NULL) {
1380                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1381                 } else {
1382                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1383                             item->path && !strcmp2(item->name, item->path))
1384                                 name = get_abbrev_newsgroup_name
1385                                         (item->path,
1386                                          prefs_common.ng_abbrev_len);
1387                         else
1388                                 name = g_strdup(item->name);
1389                 }
1390         }
1391
1392         if (name == NULL)
1393                 name = g_strdup("");
1394
1395         return name;
1396 }
1397
1398 gboolean folder_have_mailbox (void)
1399 {
1400         GList *cur;
1401         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1402                 Folder *folder = FOLDER(cur->data);
1403                 if (folder->inbox && folder->outbox)
1404                         return TRUE;
1405         }
1406         return FALSE;
1407 }
1408
1409 FolderItem *folder_get_default_inbox(void)
1410 {
1411         GList *flist;
1412
1413         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1414                 Folder * folder = FOLDER(flist->data);
1415
1416                 if (folder == NULL)
1417                         continue;
1418                 if (folder->inbox == NULL)
1419                         continue;
1420                 if (folder->klass->type == F_UNKNOWN)
1421                         continue;
1422
1423                 return folder->inbox;
1424         }
1425
1426         return NULL;
1427 }
1428
1429 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1430 {
1431         GList *flist;
1432
1433         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1434                 Folder * folder = FOLDER(flist->data);
1435
1436                 if (folder == NULL)
1437                         continue;
1438                 if (folder->inbox == NULL)
1439                         continue;
1440                 if (folder->klass->type != type)
1441                         continue;
1442
1443                 return folder->inbox;
1444         }
1445
1446         return NULL;
1447 }
1448
1449 FolderItem *folder_get_default_outbox(void)
1450 {
1451         GList *flist;
1452
1453         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1454                 Folder * folder = FOLDER(flist->data);
1455
1456                 if (folder == NULL)
1457                         continue;
1458                 if (folder->outbox == NULL)
1459                         continue;
1460                 if (folder->klass->type == F_UNKNOWN)
1461                         continue;
1462
1463                 return folder->outbox;
1464         }
1465
1466         return NULL;
1467 }
1468
1469 FolderItem *folder_get_default_outbox_for_class(FolderType type)
1470 {
1471         GList *flist;
1472
1473         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1474                 Folder * folder = FOLDER(flist->data);
1475
1476                 if (folder == NULL)
1477                         continue;
1478                 if (folder->outbox == NULL)
1479                         continue;
1480                 if (folder->klass->type != type)
1481                         continue;
1482
1483                 return folder->outbox;
1484         }
1485
1486         return NULL;
1487 }
1488
1489 FolderItem *folder_get_default_draft(void)
1490 {
1491         GList *flist;
1492
1493         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1494                 Folder * folder = FOLDER(flist->data);
1495
1496                 if (folder == NULL)
1497                         continue;
1498                 if (folder->draft == NULL)
1499                         continue;
1500                 if (folder->klass->type == F_UNKNOWN)
1501                         continue;
1502
1503                 return folder->draft;
1504         }
1505
1506         return NULL;
1507 }
1508
1509 FolderItem *folder_get_default_draft_for_class(FolderType type)
1510 {
1511         GList *flist;
1512
1513         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1514                 Folder * folder = FOLDER(flist->data);
1515
1516                 if (folder == NULL)
1517                         continue;
1518                 if (folder->draft == NULL)
1519                         continue;
1520                 if (folder->klass->type != type)
1521                         continue;
1522
1523                 return folder->draft;
1524         }
1525
1526         return NULL;
1527 }
1528
1529 FolderItem *folder_get_default_queue(void)
1530 {
1531         GList *flist;
1532
1533         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1534                 Folder * folder = FOLDER(flist->data);
1535
1536                 if (folder == NULL)
1537                         continue;
1538                 if (folder->queue == NULL)
1539                         continue;
1540                 if (folder->klass->type == F_UNKNOWN)
1541                         continue;
1542
1543                 return folder->queue;
1544         }
1545
1546         return NULL;
1547 }
1548
1549 FolderItem *folder_get_default_queue_for_class(FolderType type)
1550 {
1551         GList *flist;
1552
1553         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1554                 Folder * folder = FOLDER(flist->data);
1555
1556                 if (folder == NULL)
1557                         continue;
1558                 if (folder->queue == NULL)
1559                         continue;
1560                 if (folder->klass->type != type)
1561                         continue;
1562
1563                 return folder->queue;
1564         }
1565
1566         return NULL;
1567 }
1568
1569 FolderItem *folder_get_default_trash(void)
1570 {
1571         GList *flist;
1572
1573         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1574                 Folder * folder = FOLDER(flist->data);
1575
1576                 if (folder == NULL)
1577                         continue;
1578                 if (folder->trash == NULL)
1579                         continue;
1580                 if (folder->klass->type == F_UNKNOWN)
1581                         continue;
1582
1583                 return folder->trash;
1584         }
1585
1586         return NULL;
1587 }
1588
1589 FolderItem *folder_get_default_trash_for_class(FolderType type)
1590 {
1591         GList *flist;
1592
1593         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1594                 Folder * folder = FOLDER(flist->data);
1595
1596                 if (folder == NULL)
1597                         continue;
1598                 if (folder->trash == NULL)
1599                         continue;
1600                 if (folder->klass->type != type)
1601                         continue;
1602
1603                 return folder->trash;
1604         }
1605
1606         return NULL;
1607 }
1608
1609 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1610 {                                                               \
1611         if (!folder->member) {                                  \
1612                 item = folder_item_new(folder, dir, dir);       \
1613                 item->stype = type;                             \
1614                 folder_item_append(rootitem, item);             \
1615                 folder->member = item;                          \
1616         }                                                       \
1617 }
1618
1619 void folder_set_missing_folders(void)
1620 {
1621         Folder *folder;
1622         FolderItem *rootitem;
1623         FolderItem *item;
1624         GList *list;
1625
1626         for (list = folder_list; list != NULL; list = list->next) {
1627                 folder = list->data;
1628                 if (FOLDER_TYPE(folder) != F_MH) continue;
1629                 rootitem = FOLDER_ITEM(folder->node->data);
1630                 g_return_if_fail(rootitem != NULL);
1631
1632                 if (folder->inbox && folder->outbox && folder->draft &&
1633                     folder->queue && folder->trash)
1634                         continue;
1635
1636                 if (folder->klass->create_tree(folder) < 0) {
1637                         g_warning("%s: can't create the folder tree.\n",
1638                                   LOCAL_FOLDER(folder)->rootpath);
1639                         continue;
1640                 }
1641
1642                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1643                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1644                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1645                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1646                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1647         }
1648 }
1649
1650 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1651 {
1652         FolderItem *item = node->data;
1653         PrefsAccount *account = data;
1654
1655         if (item->account == account)
1656                 item->account = NULL;
1657
1658         return FALSE;
1659 }
1660
1661 void folder_unref_account_all(PrefsAccount *account)
1662 {
1663         Folder *folder;
1664         GList *list;
1665
1666         if (!account) return;
1667
1668         for (list = folder_list; list != NULL; list = list->next) {
1669                 folder = list->data;
1670                 if (folder->account == account)
1671                         folder->account = NULL;
1672                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1673                                 folder_unref_account_func, account);
1674         }
1675 }
1676
1677 #undef CREATE_FOLDER_IF_NOT_EXIST
1678
1679 gchar *folder_item_get_path(FolderItem *item)
1680 {
1681         Folder *folder;
1682
1683         g_return_val_if_fail(item != NULL, NULL);
1684         folder = item->folder;
1685         g_return_val_if_fail(folder != NULL, NULL);
1686
1687         return folder->klass->item_get_path(folder, item);
1688 }
1689
1690 void folder_item_set_default_flags(FolderItem *dest, MsgFlags *flags)
1691 {
1692         if (!(folder_has_parent_of_type(dest, F_OUTBOX) ||
1693               folder_has_parent_of_type(dest, F_QUEUE)  ||
1694               folder_has_parent_of_type(dest, F_DRAFT) ||
1695               folder_has_parent_of_type(dest, F_TRASH))) {
1696                 flags->perm_flags = MSG_NEW|MSG_UNREAD;
1697         } else {
1698                 flags->perm_flags = 0;
1699         }
1700         if (FOLDER_TYPE(dest->folder) == F_MH) {
1701                 if (folder_has_parent_of_type(dest, F_QUEUE)) {
1702                         MSG_SET_TMP_FLAGS(*flags, MSG_QUEUED);
1703                 } else if (folder_has_parent_of_type(dest, F_DRAFT)) {
1704                         MSG_SET_TMP_FLAGS(*flags, MSG_DRAFT);
1705                 }
1706         }
1707 }
1708
1709 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1710 {
1711         MsgInfo *msginfo_a = (MsgInfo *) a;
1712         MsgInfo *msginfo_b = (MsgInfo *) b;
1713
1714         return (msginfo_a->msgnum - msginfo_b->msgnum);
1715 }
1716
1717 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1718 {
1719         guint gint_a = GPOINTER_TO_INT(a);
1720         guint gint_b = GPOINTER_TO_INT(b);
1721
1722         return (gint_a - gint_b);
1723 }
1724
1725 void folder_item_process_open (FolderItem *item,
1726                                  void (*before_proc_func)(gpointer data),
1727                                  void (*after_proc_func)(gpointer data),
1728                                  gpointer data)
1729 {
1730         gchar *buf;
1731         if (item == NULL)
1732                 return;
1733         if((item->folder->klass->scan_required != NULL) &&
1734            (item->folder->klass->scan_required(item->folder, item))) {
1735                 folder_item_scan_full(item, TRUE);
1736         } else {
1737                 folder_item_syncronize_flags(item);
1738         }
1739
1740         /* Processing */
1741         buf = g_strdup_printf(_("Processing (%s)...\n"),
1742                               item->path ? item->path : item->name);
1743         g_free(buf);
1744
1745         if (before_proc_func)
1746                 before_proc_func(data);
1747
1748         folder_item_apply_processing(item);
1749
1750         if (after_proc_func)
1751                 after_proc_func(data);
1752
1753         item->processing_pending = FALSE;
1754         return;
1755 }
1756
1757 gint folder_item_open(FolderItem *item)
1758 {
1759         START_TIMING("");
1760         if (item->no_select)
1761                 return -1;
1762
1763         if (item->scanning) {
1764                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
1765                 return -2;
1766         }
1767
1768         item->processing_pending = TRUE;
1769         folder_item_process_open (item, NULL, NULL, NULL);
1770
1771         item->opened = TRUE;
1772         END_TIMING();
1773         return 0;
1774 }
1775
1776 gint folder_item_close(FolderItem *item)
1777 {
1778         GSList *mlist, *cur;
1779         Folder *folder;
1780
1781         g_return_val_if_fail(item != NULL, -1);
1782
1783         if (item->no_select)
1784                 return -1;
1785
1786         if (item->new_msgs) {
1787                 folder_item_update_freeze();
1788                 mlist = folder_item_get_msg_list(item);
1789                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1790                         MsgInfo * msginfo;
1791
1792                         msginfo = (MsgInfo *) cur->data;
1793                         if (MSG_IS_NEW(msginfo->flags))
1794                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1795                         procmsg_msginfo_free(msginfo);
1796                 }
1797                 g_slist_free(mlist);
1798                 folder_item_update_thaw();
1799         }
1800
1801         folder_item_write_cache(item);
1802
1803         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1804
1805         item->opened = FALSE;
1806         folder = item->folder;
1807
1808         if (folder->klass->close == NULL)
1809                 return 0;
1810
1811         return folder->klass->close(folder, item);
1812 }
1813
1814 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
1815 {
1816         MsgInfoList *msglist = NULL;
1817         Folder *folder = item->folder;
1818         if (item->no_select)
1819                 return NULL;
1820
1821         if (folder->klass->get_msginfos != NULL)
1822                 msglist = folder->klass->get_msginfos(folder, item, numlist);
1823         else {
1824                 MsgNumberList *elem;
1825
1826                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
1827                         MsgInfo *msginfo;
1828                         guint num;
1829
1830                         num = GPOINTER_TO_INT(elem->data);
1831                         msginfo = folder->klass->get_msginfo(folder, item, num);
1832                         if (msginfo != NULL)
1833                                 msglist = g_slist_prepend(msglist, msginfo);
1834                 }
1835         }
1836
1837         return msglist;
1838 }
1839
1840 static MsgInfo *get_msginfo(FolderItem *item, guint num)
1841 {
1842         MsgNumberList numlist;
1843         MsgInfoList *msglist;
1844         MsgInfo *msginfo = NULL;
1845
1846         numlist.data = GINT_TO_POINTER(num);
1847         numlist.next = NULL;
1848         msglist = get_msginfos(item, &numlist);
1849         if (msglist != NULL)
1850                 msginfo = procmsg_msginfo_new_ref(msglist->data);
1851         procmsg_msg_list_free(msglist);
1852
1853         return msginfo;
1854 }
1855
1856 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1857 {
1858         GRelation *relation;
1859         gint ret = 0;
1860         GSList *cur;
1861
1862         if(msglist == NULL)
1863                 return 0;
1864         if(item->folder->klass->get_flags == NULL)
1865                 return 0;
1866         if (item->no_select)
1867                 return 0;
1868
1869         relation = g_relation_new(2);
1870         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1871         if ((ret = item->folder->klass->get_flags(
1872             item->folder, item, msglist, relation)) == 0) {
1873                 GTuples *tuples;
1874                 MsgInfo *msginfo;
1875                 MsgPermFlags permflags = 0;
1876                 gboolean skip;
1877
1878                 folder_item_update_freeze();
1879                 folder_item_set_batch(item, TRUE);
1880                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1881                         msginfo = (MsgInfo *) cur->data;
1882
1883                         tuples = g_relation_select(relation, msginfo, 0);
1884                         skip = tuples->len < 1;
1885                         if (!skip)
1886                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1887                         g_tuples_destroy(tuples);
1888                         if (skip)
1889                                 continue;
1890
1891                         if (msginfo->flags.perm_flags != permflags) {
1892                                 procmsg_msginfo_change_flags(msginfo,
1893                                         permflags & ~msginfo->flags.perm_flags, 0,
1894                                         ~permflags & msginfo->flags.perm_flags, 0);
1895                         }
1896                 }
1897                 folder_item_set_batch(item, FALSE);
1898                 folder_item_update_thaw();
1899         }
1900         g_relation_destroy(relation);
1901
1902         return ret;
1903 }
1904
1905 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1906 {
1907         Folder *folder;
1908         GSList *folder_list = NULL, *cache_list = NULL;
1909         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1910         GSList *exists_list = NULL, *elem;
1911         GSList *newmsg_list = NULL;
1912         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
1913         guint markedcnt = 0, unreadmarkedcnt = 0;
1914         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1915         gboolean update_flags = 0, old_uids_valid = FALSE;
1916         GHashTable *subject_table = NULL;
1917
1918         g_return_val_if_fail(item != NULL, -1);
1919         if (item->path == NULL) return -1;
1920
1921         folder = item->folder;
1922
1923         g_return_val_if_fail(folder != NULL, -1);
1924         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1925
1926         item->scanning = TRUE;
1927
1928         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
1929
1930         /* Get list of messages for folder and cache */
1931         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1932                 debug_print("Error fetching list of message numbers\n");
1933                 item->scanning = FALSE;
1934                 return(-1);
1935         }
1936
1937         if(prefs_common.thread_by_subject) {
1938                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
1939         }
1940
1941         if (old_uids_valid) {
1942                 if (!item->cache)
1943                         folder_item_read_cache(item);
1944                 cache_list = msgcache_get_msg_list(item->cache);
1945         } else {
1946                 if (item->cache)
1947                         msgcache_destroy(item->cache);
1948                 item->cache = msgcache_new();
1949                 cache_list = NULL;
1950         }
1951
1952         /* Sort both lists */
1953         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
1954         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
1955
1956         cache_list_cur = cache_list;
1957         folder_list_cur = folder_list;
1958
1959         if (cache_list_cur != NULL) {
1960                 GSList *cache_list_last;
1961
1962                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1963                 cache_list_last = g_slist_last(cache_list);
1964                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
1965         } else {
1966                 cache_cur_num = G_MAXINT;
1967                 cache_max_num = 0;
1968         }
1969
1970         if (folder_list_cur != NULL) {
1971                 GSList *folder_list_last;
1972
1973                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1974                 folder_list_last = g_slist_last(folder_list);
1975                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
1976         } else {
1977                 folder_cur_num = G_MAXINT;
1978                 folder_max_num = 0;
1979         }
1980
1981         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
1982                 /*
1983                  *  Message only exists in the folder
1984                  *  Remember message for fetching
1985                  */
1986                 if (folder_cur_num < cache_cur_num) {
1987                         gboolean add = FALSE;
1988
1989                         switch(FOLDER_TYPE(folder)) {
1990                                 case F_NEWS:
1991                                         if (folder_cur_num < cache_max_num)
1992                                                 break;
1993
1994                                         if (folder->account->max_articles == 0) {
1995                                                 add = TRUE;
1996                                         }
1997
1998                                         if (folder_max_num <= folder->account->max_articles) {
1999                                                 add = TRUE;
2000                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
2001                                                 add = TRUE;
2002                                         }
2003                                         break;
2004                                 default:
2005                                         add = TRUE;
2006                                         break;
2007                         }
2008
2009                         if (add) {
2010                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
2011                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
2012                         }
2013
2014                         /* Move to next folder number */
2015                         folder_list_cur = folder_list_cur->next;
2016
2017                         if (folder_list_cur != NULL)
2018                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2019                         else
2020                                 folder_cur_num = G_MAXINT;
2021
2022                         continue;
2023                 }
2024
2025                 /*
2026                  *  Message only exists in the cache
2027                  *  Remove the message from the cache
2028                  */
2029                 if (cache_cur_num < folder_cur_num) {
2030                         msgcache_remove_msg(item->cache, cache_cur_num);
2031                         debug_print("Removed message %d from cache.\n", cache_cur_num);
2032
2033                         /* Move to next cache number */
2034                         cache_list_cur = cache_list_cur->next;
2035
2036                         if (cache_list_cur != NULL)
2037                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2038                         else
2039                                 cache_cur_num = G_MAXINT;
2040
2041                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2042
2043                         continue;
2044                 }
2045
2046                 /*
2047                  *  Message number exists in folder and cache!
2048                  *  Check if the message has been modified
2049                  */
2050                 if (cache_cur_num == folder_cur_num) {
2051                         MsgInfo *msginfo;
2052
2053                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
2054                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
2055                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2056                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
2057                                 procmsg_msginfo_free(msginfo);
2058
2059                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
2060                         } else {
2061                                 exists_list = g_slist_prepend(exists_list, msginfo);
2062
2063                                 if(prefs_common.thread_by_subject &&
2064                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2065                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2066                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2067                                 }
2068                         }
2069
2070                         /* Move to next folder and cache number */
2071                         cache_list_cur = cache_list_cur->next;
2072                         folder_list_cur = folder_list_cur->next;
2073
2074                         if (cache_list_cur != NULL)
2075                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2076                         else
2077                                 cache_cur_num = G_MAXINT;
2078
2079                         if (folder_list_cur != NULL)
2080                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2081                         else
2082                                 folder_cur_num = G_MAXINT;
2083
2084                         continue;
2085                 }
2086         }
2087
2088         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
2089                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
2090
2091         g_slist_free(cache_list);
2092         g_slist_free(folder_list);
2093
2094         if (new_list != NULL) {
2095                 GSList *tmp_list = NULL;
2096                 newmsg_list = get_msginfos(item, new_list);
2097                 g_slist_free(new_list);
2098                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2099                 syncronize_flags(item, tmp_list);
2100                 g_slist_free(tmp_list);
2101         } else {
2102                 syncronize_flags(item, exists_list);
2103         }
2104
2105         folder_item_update_freeze();
2106         if (newmsg_list != NULL) {
2107                 GSList *elem, *to_filter = NULL;
2108                 gboolean do_filter = (filtering == TRUE) &&
2109                                         (item->stype == F_INBOX) &&
2110                                         (item->folder->account != NULL) &&
2111                                         (item->folder->account->filter_on_recv);
2112
2113                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2114                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2115
2116                         msgcache_add_msg(item->cache, msginfo);
2117                         if (!do_filter) {
2118                                 exists_list = g_slist_prepend(exists_list, msginfo);
2119
2120                                 if(prefs_common.thread_by_subject &&
2121                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2122                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2123                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2124                                 }
2125                         }
2126                 }
2127
2128                 if (do_filter) {
2129                         GSList *unfiltered;
2130                         procmsg_msglist_filter(newmsg_list, item->folder->account,
2131                                         &to_filter, &unfiltered,
2132                                         TRUE);
2133
2134                         filtering_move_and_copy_msgs(newmsg_list);
2135                         if (to_filter != NULL) {
2136                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2137                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2138                                         procmsg_msginfo_free(msginfo);
2139                                 }
2140                                 g_slist_free(to_filter);
2141                         }
2142                         if (unfiltered != NULL) {
2143                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2144                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2145                                         exists_list = g_slist_prepend(exists_list, msginfo);
2146
2147                                         if(prefs_common.thread_by_subject &&
2148                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2149                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2150                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2151                                         }
2152                                 }
2153                                 g_slist_free(unfiltered);
2154                         }
2155                         if (prefs_common.real_time_sync)
2156                                 folder_item_synchronise(item);
2157                 } else {
2158                         if (prefs_common.real_time_sync)
2159                                 folder_item_synchronise(item);
2160                 }
2161
2162                 g_slist_free(newmsg_list);
2163
2164                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2165         }
2166
2167         folder_item_set_batch(item, TRUE);
2168         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2169                 MsgInfo *msginfo, *parent_msginfo;
2170
2171                 msginfo = elem->data;
2172                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2173                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2174                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2175                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2176                 }
2177                 if (!MSG_IS_WATCH_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_WATCH_THREAD)) {
2178                         procmsg_msginfo_set_flags(msginfo, MSG_WATCH_THREAD, 0);
2179                 }
2180                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2181                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2182                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2183                 {
2184                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2185                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2186                                                 MSG_NEW | MSG_UNREAD, 0);
2187                         }
2188                 }
2189                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2190                      folder_has_parent_of_type(item, F_QUEUE)  ||
2191                      folder_has_parent_of_type(item, F_DRAFT)  ||
2192                      folder_has_parent_of_type(item, F_TRASH)) &&
2193                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2194                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2195                 if (MSG_IS_NEW(msginfo->flags))
2196                         newcnt++;
2197                 if (MSG_IS_UNREAD(msginfo->flags))
2198                         unreadcnt++;
2199                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2200                         unreadmarkedcnt++;
2201                 if (MSG_IS_MARKED(msginfo->flags))
2202                         markedcnt++;
2203
2204                 totalcnt++;
2205
2206                 procmsg_msginfo_free(msginfo);
2207         }
2208         folder_item_set_batch(item, FALSE);
2209         g_slist_free(exists_list);
2210
2211         if(prefs_common.thread_by_subject) {
2212                 g_hash_table_destroy(subject_table);
2213         }
2214
2215         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2216         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2217         ||  item->unreadmarked_msgs != unreadmarkedcnt) {
2218                 update_flags |= F_ITEM_UPDATE_CONTENT;
2219         }
2220
2221         item->new_msgs = newcnt;
2222         item->unread_msgs = unreadcnt;
2223         item->total_msgs = totalcnt;
2224         item->unreadmarked_msgs = unreadmarkedcnt;
2225         item->marked_msgs = markedcnt;
2226
2227         update_flags |= F_ITEM_UPDATE_MSGCNT;
2228
2229         folder_item_update(item, update_flags);
2230         folder_item_update_thaw();
2231
2232         item->scanning = FALSE;
2233
2234         return 0;
2235 }
2236
2237 gint folder_item_scan(FolderItem *item)
2238 {
2239         return folder_item_scan_full(item, TRUE);
2240 }
2241
2242 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
2243                                           gpointer data)
2244 {
2245         folder_item_scan(FOLDER_ITEM(key));
2246 }
2247
2248 void folder_item_scan_foreach(GHashTable *table)
2249 {
2250         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
2251 }
2252
2253 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2254 {
2255         gint *memusage = (gint *)data;
2256
2257         if (item->cache == NULL)
2258                 return;
2259
2260         *memusage += msgcache_get_memory_usage(item->cache);
2261 }
2262
2263 gint folder_item_syncronize_flags(FolderItem *item)
2264 {
2265         MsgInfoList *msglist = NULL;
2266         GSList *cur;
2267         gint ret = 0;
2268
2269         g_return_val_if_fail(item != NULL, -1);
2270         g_return_val_if_fail(item->folder != NULL, -1);
2271         g_return_val_if_fail(item->folder->klass != NULL, -1);
2272         if (item->no_select)
2273                 return -1;
2274
2275         item->scanning = TRUE;
2276
2277         if (item->cache == NULL)
2278                 folder_item_read_cache(item);
2279
2280         msglist = msgcache_get_msg_list(item->cache);
2281
2282         ret = syncronize_flags(item, msglist);
2283
2284         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
2285                 procmsg_msginfo_free((MsgInfo *) cur->data);
2286
2287         g_slist_free(msglist);
2288
2289         item->scanning = FALSE;
2290
2291         return ret;
2292 }
2293
2294 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2295 {
2296         FolderItem *fa = (FolderItem *)a;
2297         FolderItem *fb = (FolderItem *)b;
2298
2299         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2300 }
2301
2302 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2303 {
2304         GSList **folder_item_list = (GSList **)data;
2305         gint difftime, expiretime;
2306
2307         if (item->cache == NULL)
2308                 return;
2309
2310         if (item->opened > 0)
2311                 return;
2312
2313         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2314         expiretime = prefs_common.cache_min_keep_time * 60;
2315         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2316
2317         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2318                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2319         }
2320 }
2321
2322 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2323 {
2324         g_return_val_if_fail(item != NULL, TRUE);
2325
2326         if (item->cache == NULL)
2327                 return TRUE;
2328
2329         if (item->opened > 0 && !force)
2330                 return FALSE;
2331
2332         folder_item_write_cache(item);
2333         msgcache_destroy(item->cache);
2334         item->cache = NULL;
2335         return TRUE;
2336 }
2337
2338 void folder_clean_cache_memory_force(void)
2339 {
2340         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2341         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2342
2343         prefs_common.cache_max_mem_usage = 0;
2344         prefs_common.cache_min_keep_time = 0;
2345
2346         folder_clean_cache_memory(NULL);
2347
2348         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2349         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2350 }
2351
2352 void folder_clean_cache_memory(FolderItem *protected_item)
2353 {
2354         gint memusage = 0;
2355
2356         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2357         debug_print("Total cache memory usage: %d\n", memusage);
2358
2359         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2360                 GSList *folder_item_list = NULL, *listitem;
2361
2362                 debug_print("Trying to free cache memory\n");
2363
2364                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2365                 listitem = folder_item_list;
2366                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2367                         FolderItem *item = (FolderItem *)(listitem->data);
2368                         gint cache_size = 0;
2369                         if (item == protected_item) {
2370                                 listitem = listitem->next;
2371                                 continue;
2372                         }
2373                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2374                         cache_size = msgcache_get_memory_usage(item->cache);
2375                         if (folder_item_free_cache(item, FALSE))
2376                                 memusage -= cache_size;
2377
2378                         listitem = listitem->next;
2379                 }
2380                 g_slist_free(folder_item_list);
2381         }
2382 }
2383
2384 static void folder_item_remove_cached_msg(FolderItem *item, MsgInfo *msginfo)
2385 {
2386         Folder *folder = item->folder;
2387
2388         g_return_if_fail(folder != NULL);
2389
2390         if (folder->klass->remove_cached_msg == NULL)
2391                 return;
2392
2393         folder->klass->remove_cached_msg(folder, item, msginfo);
2394 }
2395
2396 static void folder_item_clean_local_files(FolderItem *item, gint days)
2397 {
2398         g_return_if_fail(item != NULL);
2399         g_return_if_fail(item->folder != NULL);
2400
2401         if (FOLDER_TYPE(item->folder) == F_IMAP ||
2402             FOLDER_TYPE(item->folder) == F_NEWS) {
2403                 GSList *msglist = folder_item_get_msg_list(item);
2404                 GSList *cur;
2405                 time_t t = time(NULL);
2406                 for (cur = msglist; cur; cur = cur->next) {
2407                         MsgInfo *msginfo = (MsgInfo *)cur->data;
2408                         gint age = (t - msginfo->date_t) / (60*60*24);
2409                         if (age > days)
2410                                 folder_item_remove_cached_msg(item, msginfo);
2411                 }
2412                 procmsg_msg_list_free(msglist);
2413         }
2414 }
2415
2416 static void folder_item_read_cache(FolderItem *item)
2417 {
2418         gchar *cache_file, *mark_file, *tags_file;
2419         START_TIMING("");
2420         g_return_if_fail(item != NULL);
2421
2422         if (item->path != NULL) {
2423                 cache_file = folder_item_get_cache_file(item);
2424                 mark_file = folder_item_get_mark_file(item);
2425                 tags_file = folder_item_get_tags_file(item);
2426                 item->cache = msgcache_read_cache(item, cache_file);
2427                 if (!item->cache) {
2428                         MsgInfoList *list, *cur;
2429                         guint newcnt = 0, unreadcnt = 0;
2430                         guint markedcnt = 0, unreadmarkedcnt = 0;
2431                         MsgInfo *msginfo;
2432
2433                         item->cache = msgcache_new();
2434                         folder_item_scan_full(item, TRUE);
2435
2436                         msgcache_read_mark(item->cache, mark_file);
2437
2438                         list = msgcache_get_msg_list(item->cache);
2439                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2440                                 msginfo = cur->data;
2441
2442                                 if (MSG_IS_NEW(msginfo->flags))
2443                                         newcnt++;
2444                                 if (MSG_IS_UNREAD(msginfo->flags))
2445                                         unreadcnt++;
2446                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2447                                         unreadmarkedcnt++;
2448                                 if (MSG_IS_MARKED(msginfo->flags))
2449                                         markedcnt++;
2450                                 procmsg_msginfo_unset_flags(msginfo, MSG_FULLY_CACHED, 0);
2451                         }
2452                         item->new_msgs = newcnt;
2453                         item->unread_msgs = unreadcnt;
2454                         item->unreadmarked_msgs = unreadmarkedcnt;
2455                         item->marked_msgs = markedcnt;
2456                         procmsg_msg_list_free(list);
2457                 } else
2458                         msgcache_read_mark(item->cache, mark_file);
2459
2460                 msgcache_read_tags(item->cache, tags_file);
2461
2462                 g_free(cache_file);
2463                 g_free(mark_file);
2464                 g_free(tags_file);
2465         } else {
2466                 item->cache = msgcache_new();
2467         }
2468         END_TIMING();
2469         folder_clean_cache_memory(item);
2470 }
2471
2472 void folder_item_write_cache(FolderItem *item)
2473 {
2474         gchar *cache_file, *mark_file, *tags_file;
2475         FolderItemPrefs *prefs;
2476         gint filemode = 0;
2477         gchar *id;
2478         time_t last_mtime = (time_t)0;
2479         gboolean need_scan = FALSE;
2480
2481         if (!item || !item->path || !item->cache)
2482                 return;
2483
2484         last_mtime = item->mtime;
2485         need_scan = item->folder->klass->scan_required(item->folder, item);
2486
2487         id = folder_item_get_identifier(item);
2488         debug_print("Save cache for folder %s\n", id);
2489         g_free(id);
2490
2491         cache_file = folder_item_get_cache_file(item);
2492         mark_file = folder_item_get_mark_file(item);
2493         tags_file = folder_item_get_tags_file(item);
2494         if (msgcache_write(cache_file, mark_file, tags_file, item->cache) < 0) {
2495                 prefs = item->prefs;
2496                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2497                         /* for cache file */
2498                         filemode = prefs->folder_chmod;
2499                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2500                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2501                         chmod(cache_file, filemode);
2502                 }
2503         }
2504
2505         if (!need_scan && item->folder->klass->set_mtime) {
2506                 if (item->mtime == last_mtime) {
2507                         item->folder->klass->set_mtime(item->folder, item);
2508                 }
2509         }
2510
2511         g_free(cache_file);
2512         g_free(mark_file);
2513         g_free(tags_file);
2514 }
2515
2516 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2517 {
2518         Folder *folder;
2519         MsgInfo *msginfo = NULL;
2520
2521         g_return_val_if_fail(item != NULL, NULL);
2522         if (item->no_select)
2523                 return NULL;
2524         folder = item->folder;
2525         if (!item->cache)
2526                 folder_item_read_cache(item);
2527
2528         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2529                 return msginfo;
2530
2531         msginfo = get_msginfo(item, num);
2532         if (msginfo != NULL) {
2533                 msgcache_add_msg(item->cache, msginfo);
2534                 return msginfo;
2535         }
2536
2537         return NULL;
2538 }
2539
2540 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2541 {
2542         Folder *folder;
2543         MsgInfo *msginfo;
2544
2545         g_return_val_if_fail(item != NULL, NULL);
2546         g_return_val_if_fail(msgid != NULL, NULL);
2547         if (item->no_select)
2548                 return FALSE;
2549
2550         folder = item->folder;
2551         if (!item->cache)
2552                 folder_item_read_cache(item);
2553
2554         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2555                 return msginfo;
2556
2557         return NULL;
2558 }
2559
2560 GSList *folder_item_get_msg_list(FolderItem *item)
2561 {
2562         g_return_val_if_fail(item != NULL, NULL);
2563         if (item->no_select)
2564                 return FALSE;
2565
2566         if (item->cache == 0)
2567                 folder_item_read_cache(item);
2568
2569         g_return_val_if_fail(item->cache != NULL, NULL);
2570
2571         return msgcache_get_msg_list(item->cache);
2572 }
2573
2574 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2575 {
2576         MsgInfo *msginfo = data;
2577         MimeInfo *mimeinfo = node->data;
2578
2579         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2580          && (!mimeinfo->subtype ||  strcmp(mimeinfo->subtype, "pgp-signature"))) {
2581                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2582         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2583                  mimeinfo->type != MIMETYPE_TEXT &&
2584                  mimeinfo->type != MIMETYPE_MULTIPART) {
2585                 if (!mimeinfo->subtype
2586                 ||  strcmp(mimeinfo->subtype, "pgp-signature"))
2587                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2588         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2589                 strcmp(mimeinfo->subtype, "pgp-signature") &&
2590                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2591                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2592                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2593         }
2594
2595         /* don't descend below top level message for signed and encrypted info */
2596         if (mimeinfo->type == MIMETYPE_MESSAGE)
2597                 return;
2598
2599         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2600                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2601         }
2602
2603         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2604                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2605         } else {
2606                 /* searching inside encrypted parts doesn't really make sense */
2607                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2608         }
2609 }
2610
2611 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2612 {
2613         Folder *folder;
2614         gchar *msgfile;
2615         MsgInfo *msginfo;
2616
2617         g_return_val_if_fail(item != NULL, NULL);
2618
2619         folder = item->folder;
2620
2621         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2622         if (item->no_select)
2623                 return NULL;
2624
2625         msgfile = folder->klass->fetch_msg(folder, item, num);
2626
2627         if (msgfile != NULL) {
2628                 msginfo = folder_item_get_msginfo(item, num);
2629                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2630                         MimeInfo *mimeinfo;
2631
2632                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2633                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2634                                 mimeinfo = procmime_scan_file(msgfile);
2635                         else
2636                                 mimeinfo = procmime_scan_queue_file(msgfile);
2637                         /* check for attachments */
2638                         if (mimeinfo != NULL) {
2639                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2640                                 procmime_mimeinfo_free_all(mimeinfo);
2641
2642                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2643                         }
2644                 }
2645                 procmsg_msginfo_free(msginfo);
2646         }
2647
2648         return msgfile;
2649 }
2650
2651 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2652                                   gboolean body)
2653 {
2654         Folder *folder;
2655         gchar *msgfile;
2656         MsgInfo *msginfo;
2657
2658         g_return_val_if_fail(item != NULL, NULL);
2659         if (item->no_select)
2660                 return NULL;
2661
2662         folder = item->folder;
2663
2664         if (folder->klass->fetch_msg_full == NULL)
2665                 return folder_item_fetch_msg(item, num);
2666
2667         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2668                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2669                                                 TRUE, TRUE);
2670         else
2671                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2672                                                 headers, body);
2673
2674         if (msgfile != NULL) {
2675                 msginfo = folder_item_get_msginfo(item, num);
2676                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2677                         MimeInfo *mimeinfo;
2678
2679                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2680                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2681                                 mimeinfo = procmime_scan_file(msgfile);
2682                         else
2683                                 mimeinfo = procmime_scan_queue_file(msgfile);
2684                         /* check for attachments */
2685                         if (mimeinfo != NULL) {
2686                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2687                                 procmime_mimeinfo_free_all(mimeinfo);
2688
2689                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2690                         }
2691                 }
2692                 procmsg_msginfo_free(msginfo);
2693         }
2694
2695         return msgfile;
2696 }
2697
2698
2699 gint folder_item_fetch_all_msg(FolderItem *item)
2700 {
2701         Folder *folder;
2702         GSList *mlist;
2703         GSList *cur;
2704         gint num = 0;
2705         gint ret = 0;
2706         gint total = 0;
2707
2708         g_return_val_if_fail(item != NULL, -1);
2709         if (item->no_select)
2710                 return -1;
2711
2712         debug_print("fetching all messages in %s ...\n", item->path ? item->path : "(null)");
2713         statuswindow_print_all(_("Fetching all messages in %s ...\n"), item->path ? item->path : "(null)");
2714
2715         folder = item->folder;
2716
2717         if (folder->ui_func)
2718                 folder->ui_func(folder, item, folder->ui_func_data ?
2719                                 folder->ui_func_data : GINT_TO_POINTER(num));
2720
2721         mlist = folder_item_get_msg_list(item);
2722
2723         total = g_slist_length(mlist);
2724
2725         for (cur = mlist; cur != NULL; cur = cur->next) {
2726                 MsgInfo *msginfo = (MsgInfo *)cur->data;
2727                 gchar *msg;
2728
2729                 statusbar_progress_all(num++,total, 10);
2730
2731                 if (folder->ui_func)
2732                         folder->ui_func(folder, item,
2733                                         folder->ui_func_data ?
2734                                         folder->ui_func_data :
2735                                         GINT_TO_POINTER(num));
2736                 if (num % 50 == 0)
2737                         GTK_EVENTS_FLUSH();
2738
2739                 msg = folder_item_fetch_msg(item, msginfo->msgnum);
2740                 if (!msg) {
2741                         g_warning("Can't fetch message %d. Aborting.\n",
2742                                   msginfo->msgnum);
2743                         ret = -1;
2744                         break;
2745                 }
2746                 g_free(msg);
2747         }
2748
2749         statusbar_progress_all(0,0,0);
2750         statuswindow_pop_all();
2751         procmsg_msg_list_free(mlist);
2752
2753         return ret;
2754 }
2755
2756 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2757 {
2758         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2759                                        {NULL,           NULL, FALSE}};
2760         FILE *fp;
2761         MsgInfo *msginfo;
2762         gint msgnum = 0;
2763         gchar buf[BUFFSIZE];
2764
2765         if ((fp = g_fopen(file, "rb")) == NULL)
2766                 return 0;
2767
2768         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2769             (folder_has_parent_of_type(dest, F_DRAFT)))
2770                 while (fgets(buf, sizeof(buf), fp) != NULL) {
2771                         /* new way */
2772                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
2773                                 strlen("X-Claws-End-Special-Headers:"))) ||
2774                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
2775                                 strlen("X-Sylpheed-End-Special-Headers:"))))
2776                                 break;
2777                         /* old way */
2778                         if (buf[0] == '\r' || buf[0] == '\n') break;
2779                         /* from other mailers */
2780                         if (!strncmp(buf, "Date: ", 6)
2781                         ||  !strncmp(buf, "To: ", 4)
2782                         ||  !strncmp(buf, "From: ", 6)
2783                         ||  !strncmp(buf, "Subject: ", 9)) {
2784                                 rewind(fp);
2785                                 break;
2786                         }
2787                 }
2788
2789         procheader_get_header_fields(fp, hentry);
2790         debug_print("looking for %s\n", hentry[0].body);
2791         if (hentry[0].body) {
2792                 extract_parenthesis(hentry[0].body, '<', '>');
2793                 remove_space(hentry[0].body);
2794                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2795                         msgnum = msginfo->msgnum;
2796                         procmsg_msginfo_free(msginfo);
2797
2798                         debug_print("found message as uid %d\n", msgnum);
2799                 }
2800         }
2801
2802         g_free(hentry[0].body);
2803         hentry[0].body = NULL;
2804         fclose(fp);
2805
2806         return msgnum;
2807 }
2808
2809 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2810 {
2811         MsgPermFlags perm_flags = 0;
2812         MsgTmpFlags tmp_flags = 0;
2813
2814         /* create new flags */
2815         if (source != NULL) {
2816                 /* copy original flags */
2817                 perm_flags = source->flags.perm_flags;
2818                 tmp_flags = source->flags.tmp_flags;
2819         } else {
2820                 perm_flags = dest->flags.perm_flags;
2821                 tmp_flags = dest->flags.tmp_flags;
2822         }
2823
2824         /* remove new, unread and deleted in special folders */
2825         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
2826             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
2827             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
2828             folder_has_parent_of_type(dest->folder, F_TRASH))
2829                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
2830
2831         /* set ignore flag of ignored parent exists */
2832         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
2833                 perm_flags |= MSG_IGNORE_THREAD;
2834
2835         /* unset FULLY_CACHED flags */
2836         perm_flags &= ~MSG_FULLY_CACHED;
2837
2838         if (procmsg_msg_has_flagged_parent(dest, MSG_WATCH_THREAD))
2839                 perm_flags |= MSG_WATCH_THREAD;
2840
2841         /* Unset tmp flags that should not be copied */
2842         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
2843
2844         /* unset flags that are set but should not */
2845         /* and set new flags */
2846         procmsg_msginfo_change_flags(dest,
2847                                   ~dest->flags.perm_flags & perm_flags,
2848                                   ~dest->flags.tmp_flags  & tmp_flags,
2849                                    dest->flags.perm_flags & ~perm_flags,
2850                                    dest->flags.tmp_flags  & ~tmp_flags);
2851
2852         if (source && source->tags) {
2853                 g_slist_free(dest->tags);
2854                 dest->tags = g_slist_copy(source->tags);
2855         }
2856 }
2857
2858 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
2859 {
2860         /* update folder stats */
2861         if (MSG_IS_NEW(newmsginfo->flags))
2862                 item->new_msgs++;
2863         if (MSG_IS_UNREAD(newmsginfo->flags))
2864                 item->unread_msgs++;
2865         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
2866                 item->unreadmarked_msgs++;
2867         if (MSG_IS_MARKED(newmsginfo->flags))
2868                 item->marked_msgs++;
2869         item->total_msgs++;
2870
2871         folder_item_update_freeze();
2872
2873         if (!item->cache)
2874                 folder_item_read_cache(item);
2875
2876         msgcache_add_msg(item->cache, newmsginfo);
2877         copy_msginfo_flags(flagsource, newmsginfo);
2878         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
2879         folder_item_update_thaw();
2880 }
2881
2882 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
2883 {
2884         MsgInfoUpdate msginfo_update;
2885
2886         if (!item->cache)
2887                 folder_item_read_cache(item);
2888
2889         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2890                 msginfo->folder->new_msgs--;
2891         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2892                 msginfo->folder->unread_msgs--;
2893         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2894                 msginfo->folder->unreadmarked_msgs--;
2895         if (MSG_IS_MARKED(msginfo->flags))
2896                 item->marked_msgs--;
2897
2898         msginfo->folder->total_msgs--;
2899
2900         msginfo_update.msginfo = msginfo;
2901         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
2902         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2903
2904         msgcache_remove_msg(item->cache, msginfo->msgnum);
2905         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
2906 }
2907
2908 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
2909                          MsgFlags *flags, gboolean remove_source)
2910 {
2911         GSList file_list;
2912         MsgFileInfo fileinfo;
2913
2914         g_return_val_if_fail(dest != NULL, -1);
2915         g_return_val_if_fail(file != NULL, -1);
2916
2917         fileinfo.msginfo = NULL;
2918         fileinfo.file = (gchar *)file;
2919         fileinfo.flags = flags;
2920         file_list.data = &fileinfo;
2921         file_list.next = NULL;
2922
2923         return folder_item_add_msgs(dest, &file_list, remove_source);
2924 }
2925
2926 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
2927                           gboolean remove_source)
2928 {
2929         Folder *folder;
2930         gint ret, num, lastnum = -1;
2931         GSList *file_cur;
2932         GRelation *relation;
2933         MsgFileInfo *fileinfo = NULL;
2934         gboolean folderscan = FALSE;
2935
2936         g_return_val_if_fail(dest != NULL, -1);
2937         g_return_val_if_fail(file_list != NULL, -1);
2938         g_return_val_if_fail(dest->folder != NULL, -1);
2939         if (dest->no_select)
2940                 return -1;
2941
2942         folder = dest->folder;
2943
2944         relation = g_relation_new(2);
2945         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2946
2947         if (folder->klass->add_msgs != NULL) {
2948                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
2949                 if (ret < 0) {
2950                         g_relation_destroy(relation);
2951                         return ret;
2952                 }
2953         } else {
2954                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2955                         fileinfo = (MsgFileInfo *) file_cur->data;
2956
2957                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
2958                         if (ret < 0) {
2959                                 g_relation_destroy(relation);
2960                                 return ret;
2961                         }
2962                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
2963                 }
2964         }
2965
2966         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2967                 GTuples *tuples;
2968
2969                 fileinfo = (MsgFileInfo *) file_cur->data;
2970                 tuples = g_relation_select(relation, fileinfo, 0);
2971                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2972                 g_tuples_destroy(tuples);
2973
2974                 if (num >= 0) {
2975                         MsgInfo *newmsginfo;
2976
2977                         if (num == 0) {
2978                                 if (!folderscan) {
2979                                         folder_item_scan_full(dest, FALSE);
2980                                         folderscan = TRUE;
2981                                 }
2982                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
2983                                 debug_print("got num %d\n", num);
2984                         }
2985
2986                         if (num > lastnum)
2987                                 lastnum = num;
2988
2989                         if (num >= 0 && remove_source) {
2990                                 if (g_unlink(fileinfo->file) < 0)
2991                                         FILE_OP_ERROR(fileinfo->file, "unlink");
2992                         }
2993
2994                         if (num == 0)
2995                                 continue;
2996
2997                         if (!folderscan &&
2998                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
2999                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
3000                                 procmsg_msginfo_free(newmsginfo);
3001                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
3002                                 /* TODO: set default flags */
3003                                 procmsg_msginfo_free(newmsginfo);
3004                         }
3005                 }
3006         }
3007
3008         g_relation_destroy(relation);
3009
3010         return lastnum;
3011 }
3012
3013 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy)
3014 {
3015         GSList *mlist;
3016         FolderItem *new_item;
3017         FolderItem *next_item;
3018         GNode *srcnode;
3019         gchar *old_id, *new_id;
3020
3021         /* move messages */
3022         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
3023         new_item = folder_create_folder(dest, src->name);
3024         if (new_item == NULL) {
3025                 g_print("Can't create folder\n");
3026                 return NULL;
3027         }
3028
3029         if (new_item->folder == NULL)
3030                 new_item->folder = dest->folder;
3031
3032         /* move messages */
3033         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"),
3034                         src->name, new_item->path);
3035
3036         mlist = folder_item_get_msg_list(src);
3037
3038         if (mlist != NULL) {
3039                 if (copy)
3040                         folder_item_copy_msgs(new_item, mlist);
3041                 else
3042                         folder_item_move_msgs(new_item, mlist);
3043                 procmsg_msg_list_free(mlist);
3044         }
3045
3046         /*copy prefs*/
3047         folder_item_prefs_copy_prefs(src, new_item);
3048
3049         /* copy internal data */
3050         if (src->folder->klass == new_item->folder->klass &&
3051             src->folder->klass->copy_private_data != NULL)
3052                 src->folder->klass->copy_private_data(src->folder,
3053                                         src, new_item);
3054         new_item->collapsed = src->collapsed;
3055         new_item->thread_collapsed = src->thread_collapsed;
3056         new_item->threaded  = src->threaded;
3057         new_item->ret_rcpt  = src->ret_rcpt;
3058         new_item->hide_read_msgs = src->hide_read_msgs;
3059         new_item->sort_key  = src->sort_key;
3060         new_item->sort_type = src->sort_type;
3061
3062         prefs_matcher_write_config();
3063
3064         /* recurse */
3065         srcnode = src->folder->node;
3066         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
3067         srcnode = srcnode->children;
3068         while (srcnode != NULL) {
3069                 if (srcnode && srcnode->data) {
3070                         next_item = (FolderItem*) srcnode->data;
3071                         srcnode = srcnode->next;
3072                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
3073                                 return NULL;
3074                         }
3075                 }
3076         }
3077         old_id = folder_item_get_identifier(src);
3078         new_id = folder_item_get_identifier(new_item);
3079
3080         /* if src supports removing, otherwise only copy folder */
3081         if (src->folder->klass->remove_folder != NULL && !copy)
3082                 src->folder->klass->remove_folder(src->folder, src);
3083         folder_write_list();
3084
3085         if (!copy) {
3086                 debug_print("updating rules : %s => %s\n", old_id, new_id);
3087                 if (old_id != NULL && new_id != NULL) {
3088                         prefs_filtering_rename_path(old_id, new_id);
3089                         account_rename_path(old_id, new_id);
3090                 }
3091         }
3092         g_free(old_id);
3093         g_free(new_id);
3094
3095         return new_item;
3096 }
3097
3098 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
3099 {
3100         FolderItem *tmp = folder_item_parent(dest);
3101         gchar * src_identifier, * dst_identifier;
3102         gchar * phys_srcpath, * phys_dstpath, *tmppath;
3103
3104         while (tmp) {
3105                 if (tmp == src) {
3106                         return F_MOVE_FAILED_DEST_IS_CHILD;
3107                 }
3108                 tmp = folder_item_parent(tmp);
3109         }
3110
3111         tmp = folder_item_parent(src);
3112
3113         src_identifier = folder_item_get_identifier(src);
3114         dst_identifier = folder_item_get_identifier(dest);
3115
3116         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
3117                 /* dest can be a root folder */
3118                 dst_identifier = folder_get_identifier(dest->folder);
3119         }
3120         if (src_identifier == NULL || dst_identifier == NULL) {
3121                 debug_print("Can't get identifiers\n");
3122                 return F_MOVE_FAILED;
3123         }
3124
3125         if (src->folder != dest->folder && !copy) {
3126                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
3127         }
3128
3129         phys_srcpath = folder_item_get_path(src);
3130         tmppath = folder_item_get_path(dest);
3131         phys_dstpath = g_strconcat(tmppath,
3132                        G_DIR_SEPARATOR_S,
3133                        g_path_get_basename(phys_srcpath),
3134                        NULL);
3135         g_free(tmppath);
3136
3137         if (folder_item_parent(src) == dest || src == dest) {
3138                 g_free(src_identifier);
3139                 g_free(dst_identifier);
3140                 g_free(phys_srcpath);
3141                 g_free(phys_dstpath);
3142                 return F_MOVE_FAILED_DEST_IS_PARENT;
3143         }
3144         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
3145         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
3146                 return F_MOVE_FAILED;
3147         }
3148
3149         g_free(src_identifier);
3150         g_free(dst_identifier);
3151         g_free(phys_srcpath);
3152         g_free(phys_dstpath);
3153
3154         *new_item = tmp;
3155
3156         return F_MOVE_OK;
3157 }
3158
3159 /**
3160  * Copy a list of message to a new folder and remove
3161  * source messages if wanted
3162  */
3163 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
3164 {
3165         Folder *folder;
3166         GSList *l;
3167         gint num, lastnum = -1;
3168         gboolean folderscan = FALSE;
3169         GRelation *relation;
3170         GSList *not_moved = NULL;
3171         gint total = 0, curmsg = 0;
3172         MsgInfo *msginfo = NULL;
3173
3174         g_return_val_if_fail(dest != NULL, -1);
3175         g_return_val_if_fail(msglist != NULL, -1);
3176
3177         folder = dest->folder;
3178
3179         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3180         if (dest->no_select)
3181                 return -1;
3182
3183         msginfo = (MsgInfo *)msglist->data;
3184
3185         if (!msginfo)
3186                 return -1;
3187
3188         if (!MSG_IS_QUEUED(msginfo->flags) &&
3189             MSG_IS_DRAFT(msginfo->flags) &&
3190             folder_has_parent_of_type(dest, F_QUEUE)) {
3191                 GSList *cur = msglist;
3192                 gboolean queue_err = FALSE;
3193                 for (; cur; cur = cur->next) {
3194                         Compose *compose = NULL;
3195                         FolderItem *queue = dest;
3196                         int val = 0;
3197
3198                         msginfo = (MsgInfo *)cur->data;
3199                         compose = compose_reedit(msginfo, TRUE);
3200                         if (compose == NULL) {
3201                                 queue_err = TRUE;
3202                                 continue;
3203                         }
3204                         val = compose_queue(compose, NULL, &queue, NULL,
3205                                         FALSE);
3206                         if (val < 0) {
3207                                 queue_err = TRUE;
3208                         } else if (remove_source) {
3209                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3210                         }
3211                         if (val == 0)
3212                                 compose_close(compose);
3213                 }
3214                 return queue_err ? -1:0;
3215         }
3216
3217         relation = g_relation_new(2);
3218         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3219         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
3220
3221         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3222                 MsgInfo * msginfo = (MsgInfo *) l->data;
3223
3224                 if (msginfo->planned_download != 0) {
3225                         int old_planned = msginfo->planned_download;
3226                         partial_unmark(msginfo);
3227                         /* little hack to reenable after */
3228                         msginfo->planned_download = old_planned;
3229                 }
3230         }
3231
3232         /*
3233          * Copy messages to destination folder and
3234          * store new message numbers in newmsgnums
3235          */
3236         if (folder->klass->copy_msgs != NULL) {
3237                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3238                         g_relation_destroy(relation);
3239                         return -1;
3240                 }
3241         } else {
3242                 MsgInfo * msginfo;
3243                 l = msglist;
3244
3245                 /* immediately stop if src and dest folders are identical */
3246                 if (l != NULL) {
3247                         msginfo = (MsgInfo *) l->data;
3248                         if (msginfo != NULL && msginfo->folder == dest) {
3249                                 g_relation_destroy(relation);
3250                                 return -1;
3251                         }
3252                 }
3253
3254                 for (; l != NULL ; l = g_slist_next(l)) {
3255                         msginfo = (MsgInfo *) l->data;
3256
3257                         num = folder->klass->copy_msg(folder, dest, msginfo);
3258                         if (num > 0)
3259                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
3260                         else
3261                                 not_moved = g_slist_prepend(not_moved, msginfo);
3262                 }
3263         }
3264
3265         if (remove_source) {
3266                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3267                 FolderItem *item = msginfo->folder;
3268                 /*
3269                  * Remove source messages from their folders if
3270                  * copying was successfull and update folder
3271                  * message counts
3272                  */
3273                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3274                         item->folder->klass->remove_msgs(item->folder,
3275                                                                 msginfo->folder,
3276                                                                 msglist,
3277                                                                 relation);
3278                 }
3279                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3280                         GTuples *tuples;
3281                         msginfo = (MsgInfo *) l->data;
3282                         item = msginfo->folder;
3283
3284                         tuples = g_relation_select(relation, msginfo, 0);
3285                         if (tuples) {
3286                                 if (tuples->len)
3287                                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3288                                 else
3289                                         num = 0;
3290                                 g_tuples_destroy(tuples);
3291                         } else {
3292                                 num = -1;
3293                         }
3294
3295                         if (g_slist_find(not_moved, msginfo))
3296                                 continue;
3297
3298                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3299                                 if (!item->folder->klass->remove_msgs)
3300                                         item->folder->klass->remove_msg(item->folder,
3301                                                                 msginfo->folder,
3302                                                                 msginfo->msgnum);
3303                                 remove_msginfo_from_cache(item, msginfo);
3304                         }
3305                 }
3306         }
3307
3308         /* Read cache for dest folder */
3309         if (!dest->cache) folder_item_read_cache(dest);
3310
3311         /*
3312          * Fetch new MsgInfos for new messages in dest folder,
3313          * add them to the msgcache and update folder message counts
3314          */
3315         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
3316                 folder_item_scan_full(dest, FALSE);
3317                 folderscan = TRUE;
3318         }
3319
3320         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3321         total = g_slist_length(msglist);
3322         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3323                 MsgInfo *msginfo = (MsgInfo *) l->data;
3324                 GTuples *tuples;
3325
3326                 tuples = g_relation_select(relation, msginfo, 0);
3327                 if (tuples->len > 0) {
3328                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3329                         g_tuples_destroy(tuples);
3330                 } else {
3331                         num = 0;
3332                         if (tuples)
3333                                 g_tuples_destroy(tuples);
3334                 }
3335                 statusbar_progress_all(curmsg++,total, 100);
3336                 if (curmsg % 100 == 0)
3337                         GTK_EVENTS_FLUSH();
3338
3339                 if (num >= 0) {
3340                         MsgInfo *newmsginfo = NULL;
3341
3342                         if (!folderscan && num > 0) {
3343                                 newmsginfo = get_msginfo(dest, num);
3344                                 if (newmsginfo != NULL) {
3345                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3346                                 }
3347                         }
3348                         if (newmsginfo == NULL) {
3349                                 if (!folderscan) {
3350                                         folder_item_scan_full(dest, FALSE);
3351                                         folderscan = TRUE;
3352                                 }
3353                                 if (msginfo->msgid != NULL) {
3354                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3355                                         if (newmsginfo != NULL) {
3356                                                 copy_msginfo_flags(msginfo, newmsginfo);
3357                                                 num = newmsginfo->msgnum;
3358                                         }
3359                                 }
3360                         }
3361
3362                         if (msginfo->planned_download
3363                             == POP3_PARTIAL_DLOAD_DELE) {
3364                                 partial_mark_for_delete(newmsginfo);
3365                         }
3366                         if (msginfo->planned_download
3367                             == POP3_PARTIAL_DLOAD_DLOAD) {
3368                                 partial_mark_for_download(newmsginfo);
3369                         }
3370                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3371                             procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3372                             procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3373                             hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3374                         }
3375                         procmsg_msginfo_free(newmsginfo);
3376
3377
3378                         if (num > lastnum)
3379                                 lastnum = num;
3380                 }
3381         }
3382         statusbar_progress_all(0,0,0);
3383         statusbar_pop_all();
3384
3385         g_relation_destroy(relation);
3386         if (not_moved != NULL) {
3387                 g_slist_free(not_moved);
3388                 return -1;
3389         } else
3390                 return lastnum;
3391 }
3392
3393 /**
3394  * Move a message to a new folder.
3395  *
3396  * \param dest Destination folder
3397  * \param msginfo The message
3398  */
3399 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3400 {
3401         GSList list;
3402
3403         g_return_val_if_fail(dest != NULL, -1);
3404         g_return_val_if_fail(msginfo != NULL, -1);
3405
3406         list.data = msginfo;
3407         list.next = NULL;
3408
3409         return do_copy_msgs(dest, &list, TRUE);
3410 }
3411
3412 /**
3413  * Move a list of messages to a new folder.
3414  *
3415  * \param dest Destination folder
3416  * \param msglist List of messages
3417  */
3418 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3419 {
3420         gint result = -1;
3421         g_return_val_if_fail(dest != NULL, -1);
3422         g_return_val_if_fail(msglist != NULL, -1);
3423         inc_lock();
3424         result = do_copy_msgs(dest, msglist, TRUE);
3425         inc_unlock();
3426         return result;
3427 }
3428
3429 /**
3430  * Copy a message to a new folder.
3431  *
3432  * \param dest Destination folder
3433  * \param msginfo The message
3434  */
3435 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3436 {
3437         GSList list;
3438
3439         g_return_val_if_fail(dest != NULL, -1);
3440         g_return_val_if_fail(msginfo != NULL, -1);
3441
3442         list.data = msginfo;
3443         list.next = NULL;
3444
3445         return do_copy_msgs(dest, &list, FALSE);
3446 }
3447
3448 /**
3449  * Copy a list of messages to a new folder.
3450  *
3451  * \param dest Destination folder
3452  * \param msglist List of messages
3453  */
3454 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3455 {
3456         gint result;
3457         g_return_val_if_fail(dest != NULL, -1);
3458         g_return_val_if_fail(msglist != NULL, -1);
3459
3460         inc_lock();
3461         result = do_copy_msgs(dest, msglist, FALSE);
3462         inc_unlock();
3463
3464         return result;
3465 }
3466
3467 gint folder_item_remove_msg(FolderItem *item, gint num)
3468 {
3469         Folder *folder;
3470         gint ret;
3471         MsgInfo *msginfo;
3472
3473         g_return_val_if_fail(item != NULL, -1);
3474         folder = item->folder;
3475         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3476         if (item->no_select)
3477                 return -1;
3478
3479         if (!item->cache) folder_item_read_cache(item);
3480
3481         msginfo = msgcache_get_msg(item->cache, num);
3482         if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3483                 procmsg_msginfo_free(msginfo);
3484                 return -1;
3485         }
3486         ret = folder->klass->remove_msg(folder, item, num);
3487
3488         if (msginfo != NULL) {
3489                 remove_msginfo_from_cache(item, msginfo);
3490                 procmsg_msginfo_free(msginfo);
3491         }
3492
3493         return ret;
3494 }
3495
3496 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3497 {
3498         Folder *folder;
3499         gint ret = 0;
3500
3501         g_return_val_if_fail(item != NULL, -1);
3502         folder = item->folder;
3503         g_return_val_if_fail(folder != NULL, -1);
3504         if (item->no_select)
3505                 return -1;
3506         inc_lock();
3507         if (!item->cache) folder_item_read_cache(item);
3508
3509         folder_item_update_freeze();
3510         if (item->folder->klass->remove_msgs) {
3511                 ret = item->folder->klass->remove_msgs(item->folder,
3512                                                         item,
3513                                                         msglist,
3514                                                         NULL);
3515         }
3516         while (ret == 0 && msglist != NULL) {
3517                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
3518                 if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3519                         msglist = msglist->next;
3520                         continue;
3521                 }
3522                 if (!item->folder->klass->remove_msgs)
3523                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3524                 if (ret != 0) break;
3525                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3526                 msglist = msglist->next;
3527         }
3528         folder_item_scan_full(item, FALSE);
3529         folder_item_update_thaw();
3530         inc_unlock();
3531         return ret;
3532 }
3533
3534 gint folder_item_remove_all_msg(FolderItem *item)
3535 {
3536         Folder *folder;
3537         gint result;
3538
3539         g_return_val_if_fail(item != NULL, -1);
3540         if (item->no_select)
3541                 return -1;
3542
3543         folder = item->folder;
3544
3545         inc_lock();
3546         if (folder->klass->remove_all_msg != NULL) {
3547                 result = folder->klass->remove_all_msg(folder, item);
3548
3549                 if (result == 0) {
3550                         folder_item_free_cache(item, TRUE);
3551                         item->cache = msgcache_new();
3552                 }
3553         } else {
3554                 MsgInfoList *msglist;
3555
3556                 msglist = folder_item_get_msg_list(item);
3557                 result = folder_item_remove_msgs(item, msglist);
3558                 procmsg_msg_list_free(msglist);
3559         }
3560
3561         if (result == 0) {
3562                 item->new_msgs = 0;
3563                 item->unread_msgs = 0;
3564                 item->unreadmarked_msgs = 0;
3565                 item->marked_msgs = 0;
3566                 item->total_msgs = 0;
3567                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3568         }
3569
3570         inc_unlock();
3571         return result;
3572 }
3573
3574 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3575 {
3576         g_return_if_fail(item != NULL);
3577         g_return_if_fail(msginfo != NULL);
3578         if (item->no_select)
3579                 return;
3580
3581         if (item->folder->klass->change_flags != NULL) {
3582                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3583         } else {
3584                 msginfo->flags.perm_flags = newflags;
3585         }
3586 }
3587
3588 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3589 {
3590         Folder *folder;
3591
3592         g_return_val_if_fail(item != NULL, FALSE);
3593         if (item->no_select)
3594                 return FALSE;
3595
3596         folder = item->folder;
3597
3598         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3599
3600         return folder->klass->is_msg_changed(folder, item, msginfo);
3601 }
3602
3603 void folder_item_discard_cache(FolderItem *item)
3604 {
3605         gchar *dir;
3606         gchar *cache;
3607
3608         if (!item)
3609                 return;
3610
3611         if (item->cache) {
3612                 msgcache_destroy(item->cache);
3613                 item->cache = NULL;
3614         }
3615         dir = folder_item_get_path(item);
3616         if (is_dir_exist(dir))
3617                 remove_all_numbered_files(dir);
3618         g_free(dir);
3619
3620         cache = folder_item_get_cache_file(item);
3621         if (is_file_exist(cache))
3622                 g_unlink(cache);
3623         g_free(cache);
3624
3625 }
3626
3627 static gchar *folder_item_get_cache_file(FolderItem *item)
3628 {
3629         gchar *path;
3630         gchar *file;
3631         gchar *old_file;
3632
3633         g_return_val_if_fail(item != NULL, NULL);
3634         g_return_val_if_fail(item->path != NULL, NULL);
3635
3636         path = folder_item_get_path(item);
3637         g_return_val_if_fail(path != NULL, NULL);
3638         if (!is_dir_exist(path))
3639                 make_dir_hier(path);
3640         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3641         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
3642
3643         if (!is_file_exist(file) && is_file_exist(old_file))
3644                 move_file(old_file, file, FALSE);
3645         g_free(old_file);
3646         g_free(path);
3647
3648         return file;
3649 }
3650
3651 static gchar *folder_item_get_mark_file(FolderItem *item)
3652 {
3653         gchar *path;
3654         gchar *file;
3655         gchar *old_file;
3656
3657         g_return_val_if_fail(item != NULL, NULL);
3658         g_return_val_if_fail(item->path != NULL, NULL);
3659
3660         path = folder_item_get_path(item);
3661         g_return_val_if_fail(path != NULL, NULL);
3662         if (!is_dir_exist(path))
3663                 make_dir_hier(path);
3664         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3665         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
3666
3667         if (!is_file_exist(file) && is_file_exist(old_file))
3668                 move_file(old_file, file, FALSE);
3669         g_free(old_file);
3670         g_free(path);
3671
3672         return file;
3673 }
3674
3675 static gchar *folder_item_get_tags_file(FolderItem *item)
3676 {
3677         gchar *path;
3678         gchar *identifier;
3679         gchar *file;
3680
3681         /* we save tags files in rc_dir, because tagsrc is there too,
3682          * and storing tags directly in the mailboxes would give strange
3683          * result when using another Claws mailbox from another install
3684          * with different tags. */
3685
3686         g_return_val_if_fail(item != NULL, NULL);
3687
3688         identifier = folder_item_get_identifier(item);
3689         g_return_val_if_fail(identifier != NULL, NULL);
3690
3691 #ifdef G_OS_WIN32
3692         while (strchr(identifier, '/'))
3693                 *strchr(identifier, '/') = '\\';
3694 #endif
3695
3696         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3697                            "tagsdb", G_DIR_SEPARATOR_S,
3698                            identifier, NULL);
3699
3700         g_free(identifier);
3701
3702         if (!is_dir_exist(path))
3703                 make_dir_hier(path);
3704
3705         file = g_strconcat(path, G_DIR_SEPARATOR_S, TAGS_FILE, NULL);
3706
3707         g_free(path);
3708
3709         return file;
3710 }
3711
3712 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3713 {
3714         XMLNode *xmlnode = (XMLNode *) nodedata;
3715         Folder *folder = (Folder *) data;
3716         FolderItem *item;
3717
3718         g_return_val_if_fail(xmlnode != NULL, NULL);
3719         g_return_val_if_fail(folder != NULL, NULL);
3720
3721         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
3722                 g_warning("tag name != \"folderitem\"\n");
3723                 return NULL;
3724         }
3725
3726         item = folder_item_new(folder, "", "");
3727         if (folder->klass->item_set_xml != NULL)
3728                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
3729         else
3730                 folder_item_set_xml(folder, item, xmlnode->tag);
3731
3732         item->folder = folder;
3733
3734         switch (item->stype) {
3735         case F_INBOX:  folder->inbox  = item; break;
3736         case F_OUTBOX: folder->outbox = item; break;
3737         case F_DRAFT:  folder->draft  = item; break;
3738         case F_QUEUE:  folder->queue  = item; break;
3739         case F_TRASH:  folder->trash  = item; break;
3740         default:       break;
3741         }
3742         folder_item_prefs_read_config(item);
3743
3744         return item;
3745 }
3746
3747 static gboolean folder_item_set_node(GNode *node, gpointer data)
3748 {
3749         FolderItem *item = (FolderItem *) node->data;
3750         item->node = node;
3751
3752         return FALSE;
3753 }
3754
3755 static Folder *folder_get_from_xml(GNode *node)
3756 {
3757         Folder *folder;
3758         XMLNode *xmlnode;
3759         GList *list;
3760         FolderClass *klass = NULL;
3761         GNode *cur;
3762
3763         g_return_val_if_fail(node->data != NULL, NULL);
3764
3765         xmlnode = node->data;
3766         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
3767                 g_warning("tag name != \"folder\"\n");
3768                 return NULL;
3769         }
3770         list = xmlnode->tag->attr;
3771         for (; list != NULL; list = list->next) {
3772                 XMLAttr *attr = list->data;
3773
3774                 if (!attr || !attr->name || !attr->value) continue;
3775                 if (!strcmp(attr->name, "type"))
3776                         klass = folder_get_class_from_string(attr->value);
3777         }
3778         if (klass == NULL)
3779                 return NULL;
3780
3781         folder = folder_new(klass, "", "");
3782         g_return_val_if_fail(folder != NULL, NULL);
3783
3784         if (klass->set_xml)
3785                 klass->set_xml(folder, xmlnode->tag);
3786         else
3787                 folder_set_xml(folder, xmlnode->tag);
3788
3789         cur = node->children;
3790         while (cur != NULL) {
3791                 GNode *itemnode;
3792
3793                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
3794                 g_node_append(folder->node, itemnode);
3795                 cur = cur->next;
3796         }
3797         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
3798
3799         return folder;
3800 }
3801
3802 static gchar *folder_get_list_path(void)
3803 {
3804         static gchar *filename = NULL;
3805
3806         if (!filename)
3807                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3808                                         FOLDER_LIST, NULL);
3809
3810         return filename;
3811 }
3812
3813 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
3814 {
3815         FolderItem *item = (FolderItem *) nodedata;
3816         XMLTag *tag;
3817
3818         g_return_val_if_fail(item != NULL, NULL);
3819
3820         if (item->folder->klass->item_get_xml != NULL)
3821                 tag = item->folder->klass->item_get_xml(item->folder, item);
3822         else
3823                 tag = folder_item_get_xml(item->folder, item);
3824
3825         return xml_node_new(tag, NULL);
3826 }
3827
3828 static GNode *folder_get_xml_node(Folder *folder)
3829 {
3830         GNode *node;
3831         XMLNode *xmlnode;
3832         XMLTag *tag;
3833
3834         g_return_val_if_fail(folder != NULL, NULL);
3835
3836         if (folder->klass->get_xml != NULL)
3837                 tag = folder->klass->get_xml(folder);
3838         else
3839                 tag = folder_get_xml(folder);
3840
3841         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
3842
3843         xmlnode = xml_node_new(tag, NULL);
3844
3845         node = g_node_new(xmlnode);
3846
3847         g_return_val_if_fail (folder->node != NULL, NULL);
3848
3849         if (folder->node->children) {
3850                 GNode *cur;
3851
3852                 cur = folder->node->children;
3853                 while (cur) {
3854                         GNode *xmlnode;
3855
3856                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
3857                         g_node_append(node, xmlnode);
3858                         cur = cur->next;
3859                 }
3860         }
3861
3862         return node;
3863 }
3864
3865 static void folder_update_op_count_rec(GNode *node)
3866 {
3867         FolderItem *fitem = FOLDER_ITEM(node->data);
3868
3869         if (g_node_depth(node) > 0) {
3870                 if (fitem->op_count > 0) {
3871                         fitem->op_count = 0;
3872                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
3873                 }
3874                 if (node->children) {
3875                         GNode *child;
3876
3877                         child = node->children;
3878                         while (child) {
3879                                 GNode *cur;
3880
3881                                 cur = child;
3882                                 child = cur->next;
3883                                 folder_update_op_count_rec(cur);
3884                         }
3885                 }
3886         }
3887 }
3888
3889 void folder_update_op_count(void)
3890 {
3891         GList *cur;
3892         Folder *folder;
3893
3894         for (cur = folder_list; cur != NULL; cur = cur->next) {
3895                 folder = cur->data;
3896                 folder_update_op_count_rec(folder->node);
3897         }
3898 }
3899
3900 typedef struct _type_str {
3901         gchar * str;
3902         gint type;
3903 } type_str;
3904
3905
3906 /*
3907 static gchar * folder_item_get_tree_identifier(FolderItem * item)
3908 {
3909         if (item->parent != NULL) {
3910                 gchar * path;
3911                 gchar * id;
3912
3913                 path = folder_item_get_tree_identifier(item->parent);
3914                 if (path == NULL)
3915                         return NULL;
3916
3917                 id = g_strconcat(path, "/", item->name, NULL);
3918                 g_free(path);
3919
3920                 return id;
3921         }
3922         else {
3923                 return g_strconcat("/", item->name, NULL);
3924         }
3925 }
3926 */
3927
3928 /* CLAWS: temporary local folder for filtering */
3929 #define TEMP_FOLDER "TEMP_FOLDER"
3930 #define PROCESSING_FOLDER_ITEM "processing"
3931
3932 static FolderItem *processing_folder_item;
3933
3934 static void folder_create_processing_folder(void)
3935 {
3936         Folder *processing_folder;
3937         gchar      *tmpname;
3938
3939         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
3940                 gchar *tmppath;
3941
3942                 tmppath =
3943                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3944                                 "tempfolder", NULL);
3945                 processing_folder =
3946                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
3947                 g_free(tmppath);
3948         }
3949         g_assert(processing_folder != NULL);
3950
3951         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
3952         /* FIXME: [W32] The code below does not correctly merge
3953            relative filenames; there should be a function to handle
3954            this.  */
3955         if (!is_relative_filename(LOCAL_FOLDER(processing_folder)->rootpath))
3956                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
3957                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3958                                       NULL);
3959         else
3960                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
3961                                       LOCAL_FOLDER(processing_folder)->rootpath,
3962                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3963                                       NULL);
3964
3965         if (!is_dir_exist(tmpname)) {
3966                 debug_print("*TMP* creating %s\n", tmpname);
3967                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
3968                                                                                  processing_folder->node->data,
3969                                                                                  PROCESSING_FOLDER_ITEM);
3970         } else {
3971                 debug_print("*TMP* already created\n");
3972                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
3973                 g_assert(processing_folder_item);
3974                 folder_item_append(processing_folder->node->data, processing_folder_item);
3975         }
3976         g_assert(processing_folder_item != NULL);
3977         g_free(tmpname);
3978 }
3979
3980 FolderItem *folder_get_default_processing(void)
3981 {
3982         if (!processing_folder_item) {
3983                 folder_create_processing_folder();
3984         }
3985         return processing_folder_item;
3986 }
3987
3988 /* folder_persist_prefs_new() - return hash table with persistent
3989  * settings (and folder name as key).
3990  * (note that in claws other options are in the folder_item_prefs_RC
3991  * file, so those don't need to be included in PersistPref yet)
3992  */
3993 static GHashTable *folder_persist_prefs_new(Folder *folder)
3994 {
3995         GHashTable *pptable;
3996
3997         g_return_val_if_fail(folder, NULL);
3998         pptable = g_hash_table_new(g_str_hash, g_str_equal);
3999         folder_get_persist_prefs_recursive(folder->node, pptable);
4000         return pptable;
4001 }
4002
4003 static void folder_persist_prefs_free(GHashTable *pptable)
4004 {
4005         g_return_if_fail(pptable);
4006         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
4007         g_hash_table_destroy(pptable);
4008 }
4009
4010 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
4011 {
4012         if (pptable == NULL || name == NULL) return NULL;
4013         return g_hash_table_lookup(pptable, name);
4014 }
4015
4016 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
4017 {
4018         const PersistPrefs *pp;
4019         gchar *id = folder_item_get_identifier(item);
4020
4021         pp = folder_get_persist_prefs(pptable, id);
4022         g_free(id);
4023
4024         if (!pp) return;
4025
4026         /* CLAWS: since not all folder properties have been migrated to
4027          * folderlist.xml, we need to call the old stuff first before
4028          * setting things that apply both to Main and Claws. */
4029         folder_item_prefs_read_config(item);
4030
4031         item->collapsed = pp->collapsed;
4032         item->thread_collapsed = pp->thread_collapsed;
4033         item->threaded  = pp->threaded;
4034         item->ret_rcpt  = pp->ret_rcpt;
4035         item->hide_read_msgs = pp->hide_read_msgs;
4036         item->sort_key  = pp->sort_key;
4037         item->sort_type = pp->sort_type;
4038 }
4039
4040 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
4041 {
4042         FolderItem *item = FOLDER_ITEM(node->data);
4043         PersistPrefs *pp;
4044         GNode *child, *cur;
4045         gchar *id;
4046
4047         g_return_if_fail(node != NULL);
4048         g_return_if_fail(item != NULL);
4049
4050         /* NOTE: item->path == NULL means top level folder; not interesting
4051          * to store preferences of that one.  */
4052         if (item->path) {
4053                 id = folder_item_get_identifier(item);
4054                 pp = g_new0(PersistPrefs, 1);
4055                 g_return_if_fail(pp != NULL);
4056                 pp->collapsed = item->collapsed;
4057                 pp->thread_collapsed = item->thread_collapsed;
4058                 pp->threaded  = item->threaded;
4059                 pp->ret_rcpt  = item->ret_rcpt;
4060                 pp->hide_read_msgs = item->hide_read_msgs;
4061                 pp->sort_key  = item->sort_key;
4062                 pp->sort_type = item->sort_type;
4063                 g_hash_table_insert(pptable, id, pp);
4064         }
4065
4066         if (node->children) {
4067                 child = node->children;
4068                 while (child) {
4069                         cur = child;
4070                         child = cur->next;
4071                         folder_get_persist_prefs_recursive(cur, pptable);
4072                 }
4073         }
4074 }
4075
4076 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
4077 {
4078         g_free(key);
4079         g_free(val);
4080         return TRUE;
4081 }
4082
4083 void folder_item_apply_processing(FolderItem *item)
4084 {
4085         GSList *processing_list;
4086         GSList *mlist, *cur;
4087         guint total = 0, curmsg = 0;
4088         gint last_apply_per_account;
4089
4090         g_return_if_fail(item != NULL);
4091
4092         if (item->no_select)
4093                return;
4094
4095         processing_list = item->prefs->processing;
4096
4097         if (!pre_global_processing && !processing_list
4098         &&  !post_global_processing)
4099                 return;
4100
4101         debug_print("processing %s\n", item->name);
4102         folder_item_update_freeze();
4103
4104         mlist = folder_item_get_msg_list(item);
4105         total = g_slist_length(mlist);
4106         statusbar_print_all(_("Processing messages..."));
4107
4108         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
4109         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
4110
4111         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4112                 MsgInfo * msginfo;
4113
4114                 msginfo = (MsgInfo *) cur->data;
4115
4116                 /* reset parameters that can be modified by processing */
4117                 msginfo->hidden = 0;
4118                 msginfo->score = 0;
4119
4120                 statusbar_progress_all(curmsg++,total, 10);
4121
4122                 /* apply pre global rules */
4123                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
4124                                 FILTERING_PRE_PROCESSING, NULL);
4125
4126                 /* apply rules of the folder */
4127                 filter_message_by_msginfo(processing_list, msginfo, NULL,
4128                                 FILTERING_FOLDER_PROCESSING, item->name);
4129
4130                 /* apply post global rules */
4131                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
4132                                 FILTERING_POST_PROCESSING, NULL);
4133                 if (curmsg % 1000 == 0)
4134                         GTK_EVENTS_FLUSH();
4135         }
4136         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
4137
4138         if (pre_global_processing || processing_list
4139             || post_global_processing)
4140                 filtering_move_and_copy_msgs(mlist);
4141         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4142                 MsgInfo * msginfo = (MsgInfo *)cur->data;
4143                 procmsg_msginfo_free(msginfo);
4144         }
4145         g_slist_free(mlist);
4146
4147         statusbar_progress_all(0,0,0);
4148         statusbar_pop_all();
4149
4150         folder_item_update_thaw();
4151 }
4152
4153 /*
4154  *  functions for handling FolderItem content changes
4155  */
4156 static gint folder_item_update_freeze_cnt = 0;
4157
4158 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
4159 {
4160         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
4161                 FolderItemUpdateData source;
4162
4163                 source.item = item;
4164                 source.update_flags = update_flags;
4165                 source.msg = msg;
4166                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4167         } else {
4168                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
4169         }
4170 }
4171
4172 /**
4173  * Notify the folder system about changes to a folder. If the
4174  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
4175  * be invoked, otherwise the changes will be remebered until
4176  * the folder system is thawed.
4177  *
4178  * \param item The FolderItem that was changed
4179  * \param update_flags Type of changed that was made
4180  */
4181 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
4182 {
4183         folder_item_update_with_msg(item, update_flags, NULL);
4184 }
4185
4186 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
4187 {
4188         GNode *node = item->folder->node;
4189
4190         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
4191         node = node->children;
4192
4193         folder_item_update(item, update_flags);
4194         while (node != NULL) {
4195                 if (node && node->data) {
4196                         FolderItem *next_item = (FolderItem*) node->data;
4197
4198                         folder_item_update(next_item, update_flags);
4199                 }
4200                 node = node->next;
4201         }
4202 }
4203
4204 void folder_item_update_freeze(void)
4205 {
4206         folder_item_update_freeze_cnt++;
4207 }
4208
4209 static void folder_item_update_func(FolderItem *item, gpointer data)
4210 {
4211         FolderItemUpdateData source;
4212
4213         if (item->update_flags) {
4214                 source.item = item;
4215                 source.update_flags = item->update_flags;
4216                 source.msg = NULL;
4217                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4218                 item->update_flags = 0;
4219         }
4220 }
4221
4222 void folder_item_update_thaw(void)
4223 {
4224         if (folder_item_update_freeze_cnt > 0)
4225                 folder_item_update_freeze_cnt--;
4226         if (folder_item_update_freeze_cnt == 0) {
4227                 /* Update all folders */
4228                 folder_func_to_all_folders(folder_item_update_func, NULL);
4229         }
4230 }
4231
4232 void folder_item_synchronise(FolderItem *item)
4233 {
4234         if (!item)
4235                 return;
4236         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4237                 statuswindow_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4238                 item->folder->klass->synchronise(item,
4239                         item->prefs->offlinesync_days);
4240                 if (item->prefs->offlinesync_days > 0 &&
4241                     item->prefs->remove_old_bodies)
4242                         folder_item_clean_local_files(item, item->prefs->offlinesync_days);
4243                 statuswindow_pop_all();
4244         }
4245 }
4246
4247 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4248 {
4249         Folder *folder = (Folder *)data;
4250         if (folder == NULL || item->folder == folder) {
4251                 folder_item_synchronise(item);
4252         }
4253 }
4254
4255 void folder_synchronise(Folder *folder)
4256 {
4257         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4258 }
4259
4260 typedef struct _WantSyncData {
4261         Folder *folder;
4262         gboolean want_sync;
4263 } WantSyncData;
4264
4265 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4266 {
4267         WantSyncData *want_sync_data = (WantSyncData *)data;
4268
4269         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4270                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4271                         want_sync_data->want_sync |= TRUE;
4272         }
4273 }
4274
4275 gboolean folder_want_synchronise(Folder *folder)
4276 {
4277         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4278         gboolean result;
4279         want_sync_data->folder = folder;
4280         want_sync_data->want_sync = FALSE;
4281
4282         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4283         result = want_sync_data->want_sync;
4284         g_free(want_sync_data);
4285         if (result > 0)
4286                 debug_print("Folder %s wants sync\n", folder->name);
4287         return result;
4288 }
4289
4290 void folder_item_set_batch (FolderItem *item, gboolean batch)
4291 {
4292         if (item->folder->klass->set_batch) {
4293                 item->folder->klass->set_batch(item->folder, item, batch);
4294         }
4295 }
4296
4297 gboolean folder_has_parent_of_type(FolderItem *item,
4298                                           SpecialFolderItemType type)
4299 {
4300         FolderItem *cur = item;
4301
4302         /* if we already know it, make it short */
4303         if (item->parent_stype != -1) {
4304                 return (item->parent_stype == type);
4305         }
4306
4307         /* if we don't, find the type from the first possible parent,
4308          * and set our parent type to be faster next time */
4309         while (cur) {
4310                 if (cur->stype == type || cur->parent_stype == type) {
4311                         item->parent_stype = type;
4312                         return TRUE;
4313                 }
4314                 cur = folder_item_parent(cur);
4315         }
4316
4317         /* if we didn't match what was asked, we didn't return. If our
4318          * parent type is unknown, we may as well find it now to be faster
4319          * later. */
4320         if (item->parent_stype == -1) {
4321                 cur = item;
4322                 while (cur) {
4323                         /* here's an exception: Inbox subfolders are normal. */
4324                         if (item->parent_stype == -1 && cur->stype == F_INBOX
4325                         && item != cur) {
4326                                 item->parent_stype = F_NORMAL;
4327                                 break;
4328                         }
4329                         /* ah, we know this parent's parent's type, we may as
4330                          * well copy it instead of going up the full way */
4331                         if (cur->parent_stype != -1) {
4332                                 item->parent_stype = cur->parent_stype;
4333                                 break;
4334                         }
4335                         /* we found a parent that has a special type. That's
4336                          * our parent type. */
4337                         if (cur->stype != F_NORMAL) {
4338                                 cur->parent_stype = cur->stype;
4339                                 item->parent_stype = cur->stype;
4340                                 break;
4341                         }
4342                         /* if we didn't find anything, go up once more */
4343                         cur = folder_item_parent(cur);
4344                 }
4345                 /* as we still didn't find anything, our parents must all be
4346                  * normal. */
4347                 if (item->parent_stype == -1) {
4348                         item->parent_stype = F_NORMAL;
4349                 }
4350         }
4351         return FALSE;
4352 }
4353
4354 gboolean folder_subscribe (const gchar *uri)
4355 {
4356         GList *cur;
4357         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4358                 Folder *folder = (Folder *) cur->data;
4359
4360                 if (folder->klass->subscribe
4361                 &&  folder->klass->subscribe(folder, uri)) {
4362                         return TRUE;
4363                 }
4364         }
4365         return FALSE;
4366
4367 }
4368
4369 gboolean folder_get_sort_type           (Folder         *folder,
4370                                          FolderSortKey  *sort_key,
4371                                          FolderSortType *sort_type)
4372 {
4373         if (!folder || !sort_key || !sort_type)
4374                 return FALSE;
4375         if (folder->klass->get_sort_type == NULL)
4376                 return FALSE;
4377         folder->klass->get_sort_type(folder, sort_key, sort_type);
4378         return TRUE;
4379 }