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 static gboolean folder_item_find_func_real_path(GNode *node, gpointer data)
1231 {
1232         FolderItem *item = node->data;
1233         gpointer *d = data;
1234         const gchar *path = d[0];
1235         gchar *tmp = folder_item_get_path(item);
1236         if (path_cmp(path, tmp) != 0) {
1237                 g_free(tmp);
1238                 return FALSE;
1239         }
1240         g_free(tmp);
1241         d[1] = item;
1242
1243         return TRUE;
1244 }
1245
1246 FolderItem *folder_find_item_from_real_path(const gchar *path)
1247 {
1248         Folder *folder;
1249         gpointer d[2];
1250         GList *list = folder_get_list();
1251
1252         folder = list ? list->data:NULL;
1253
1254         g_return_val_if_fail(folder != NULL, NULL);
1255
1256         d[0] = (gpointer)path;
1257         d[1] = NULL;
1258         while (d[1] == NULL && list) {
1259                 folder = FOLDER(list->data);
1260                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1261                         folder_item_find_func_real_path, d);
1262                 list = list->next;
1263         }
1264         return d[1];
1265 }
1266
1267 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1268 {
1269         GNode *node;
1270         FolderItem *child;
1271
1272         for (node = item->node->children; node != NULL; node = node->next) {
1273                 gchar *base;
1274                 child = FOLDER_ITEM(node->data);
1275                 base = g_path_get_basename(child->path);
1276                 if (strcmp2(base, name) == 0) {
1277                         g_free(base);
1278                         return child;
1279                 }
1280                 g_free(base);
1281         }
1282
1283         return NULL;
1284 }
1285
1286 FolderClass *folder_get_class_from_string(const gchar *str)
1287 {
1288         GSList *classlist;
1289
1290         classlist = folder_get_class_list();
1291         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1292                 FolderClass *class = (FolderClass *) classlist->data;
1293                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1294                         return class;
1295         }
1296
1297         return NULL;
1298 }
1299
1300 gchar *folder_get_identifier(Folder *folder)
1301 {
1302         gchar *type_str;
1303
1304         g_return_val_if_fail(folder != NULL, NULL);
1305
1306         type_str = folder->klass->idstr;
1307         return g_strconcat("#", type_str, "/", folder->name, NULL);
1308 }
1309
1310 gchar *folder_item_get_identifier(FolderItem *item)
1311 {
1312         gchar *id = NULL;
1313         gchar *folder_id = NULL;
1314
1315         g_return_val_if_fail(item != NULL, NULL);
1316
1317         if (item->path == NULL)
1318                 return NULL;
1319
1320         folder_id = folder_get_identifier(item->folder);
1321         id = g_strconcat(folder_id, "/", item->path, NULL);
1322         g_free(folder_id);
1323
1324         return id;
1325 }
1326
1327 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1328 {
1329         Folder *folder;
1330         gpointer d[2];
1331         gchar *str;
1332         gchar *p;
1333         gchar *name;
1334         gchar *path;
1335         FolderClass *class;
1336
1337         g_return_val_if_fail(identifier != NULL, NULL);
1338
1339         if (*identifier != '#')
1340                 return folder_find_item_from_path(identifier);
1341
1342         Xstrdup_a(str, identifier, return NULL);
1343
1344         p = strchr(str, '/');
1345         if (!p)
1346                 return folder_find_item_from_path(identifier);
1347         *p = '\0';
1348         p++;
1349         class = folder_get_class_from_string(&str[1]);
1350         if (class == NULL)
1351                 return folder_find_item_from_path(identifier);
1352
1353         name = p;
1354         p = strchr(p, '/');
1355         if (!p)
1356                 return folder_find_item_from_path(identifier);
1357         *p = '\0';
1358         p++;
1359
1360         folder = folder_find_from_name(name, class);
1361         if (!folder)
1362                 return folder_find_item_from_path(identifier);
1363
1364         path = p;
1365
1366         d[0] = (gpointer)path;
1367         d[1] = NULL;
1368         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1369                         folder_item_find_func, d);
1370         return d[1];
1371 }
1372
1373 /**
1374  * Get a displayable name for a FolderItem
1375  *
1376  * \param item FolderItem for that a name should be created
1377  * \return Displayable name for item, returned string has to
1378  *         be freed
1379  */
1380 gchar *folder_item_get_name(FolderItem *item)
1381 {
1382         gchar *name = NULL;
1383
1384         g_return_val_if_fail(item != NULL, g_strdup(""));
1385
1386         switch (item->stype) {
1387         case F_INBOX:
1388                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1389                                 item->name);
1390                 break;
1391         case F_OUTBOX:
1392                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1393                                 item->name);
1394                 break;
1395         case F_QUEUE:
1396                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1397                                 item->name);
1398                 break;
1399         case F_TRASH:
1400                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1401                                 item->name);
1402                 break;
1403         case F_DRAFT:
1404                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1405                                 item->name);
1406                 break;
1407         default:
1408                 break;
1409         }
1410
1411         if (name == NULL) {
1412                 /*
1413                  * should probably be done by a virtual function,
1414                  * the folder knows the ui string and how to abbrev
1415                 */
1416                 if (folder_item_parent(item) == NULL) {
1417                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1418                 } else {
1419                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1420                             item->path && !strcmp2(item->name, item->path))
1421                                 name = get_abbrev_newsgroup_name
1422                                         (item->path,
1423                                          prefs_common.ng_abbrev_len);
1424                         else
1425                                 name = g_strdup(item->name);
1426                 }
1427         }
1428
1429         if (name == NULL)
1430                 name = g_strdup("");
1431
1432         return name;
1433 }
1434
1435 gboolean folder_have_mailbox (void)
1436 {
1437         GList *cur;
1438         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1439                 Folder *folder = FOLDER(cur->data);
1440                 if (folder->inbox && folder->outbox)
1441                         return TRUE;
1442         }
1443         return FALSE;
1444 }
1445
1446 FolderItem *folder_get_default_inbox(void)
1447 {
1448         GList *flist;
1449
1450         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1451                 Folder * folder = FOLDER(flist->data);
1452
1453                 if (folder == NULL)
1454                         continue;
1455                 if (folder->inbox == NULL)
1456                         continue;
1457                 if (folder->klass->type == F_UNKNOWN)
1458                         continue;
1459
1460                 return folder->inbox;
1461         }
1462
1463         return NULL;
1464 }
1465
1466 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1467 {
1468         GList *flist;
1469
1470         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1471                 Folder * folder = FOLDER(flist->data);
1472
1473                 if (folder == NULL)
1474                         continue;
1475                 if (folder->inbox == NULL)
1476                         continue;
1477                 if (folder->klass->type != type)
1478                         continue;
1479
1480                 return folder->inbox;
1481         }
1482
1483         return NULL;
1484 }
1485
1486 FolderItem *folder_get_default_outbox(void)
1487 {
1488         GList *flist;
1489
1490         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1491                 Folder * folder = FOLDER(flist->data);
1492
1493                 if (folder == NULL)
1494                         continue;
1495                 if (folder->outbox == NULL)
1496                         continue;
1497                 if (folder->klass->type == F_UNKNOWN)
1498                         continue;
1499
1500                 return folder->outbox;
1501         }
1502
1503         return NULL;
1504 }
1505
1506 FolderItem *folder_get_default_outbox_for_class(FolderType type)
1507 {
1508         GList *flist;
1509
1510         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1511                 Folder * folder = FOLDER(flist->data);
1512
1513                 if (folder == NULL)
1514                         continue;
1515                 if (folder->outbox == NULL)
1516                         continue;
1517                 if (folder->klass->type != type)
1518                         continue;
1519
1520                 return folder->outbox;
1521         }
1522
1523         return NULL;
1524 }
1525
1526 FolderItem *folder_get_default_draft(void)
1527 {
1528         GList *flist;
1529
1530         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1531                 Folder * folder = FOLDER(flist->data);
1532
1533                 if (folder == NULL)
1534                         continue;
1535                 if (folder->draft == NULL)
1536                         continue;
1537                 if (folder->klass->type == F_UNKNOWN)
1538                         continue;
1539
1540                 return folder->draft;
1541         }
1542
1543         return NULL;
1544 }
1545
1546 FolderItem *folder_get_default_draft_for_class(FolderType type)
1547 {
1548         GList *flist;
1549
1550         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1551                 Folder * folder = FOLDER(flist->data);
1552
1553                 if (folder == NULL)
1554                         continue;
1555                 if (folder->draft == NULL)
1556                         continue;
1557                 if (folder->klass->type != type)
1558                         continue;
1559
1560                 return folder->draft;
1561         }
1562
1563         return NULL;
1564 }
1565
1566 FolderItem *folder_get_default_queue(void)
1567 {
1568         GList *flist;
1569
1570         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1571                 Folder * folder = FOLDER(flist->data);
1572
1573                 if (folder == NULL)
1574                         continue;
1575                 if (folder->queue == NULL)
1576                         continue;
1577                 if (folder->klass->type == F_UNKNOWN)
1578                         continue;
1579
1580                 return folder->queue;
1581         }
1582
1583         return NULL;
1584 }
1585
1586 FolderItem *folder_get_default_queue_for_class(FolderType type)
1587 {
1588         GList *flist;
1589
1590         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1591                 Folder * folder = FOLDER(flist->data);
1592
1593                 if (folder == NULL)
1594                         continue;
1595                 if (folder->queue == NULL)
1596                         continue;
1597                 if (folder->klass->type != type)
1598                         continue;
1599
1600                 return folder->queue;
1601         }
1602
1603         return NULL;
1604 }
1605
1606 FolderItem *folder_get_default_trash(void)
1607 {
1608         GList *flist;
1609
1610         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1611                 Folder * folder = FOLDER(flist->data);
1612
1613                 if (folder == NULL)
1614                         continue;
1615                 if (folder->trash == NULL)
1616                         continue;
1617                 if (folder->klass->type == F_UNKNOWN)
1618                         continue;
1619
1620                 return folder->trash;
1621         }
1622
1623         return NULL;
1624 }
1625
1626 FolderItem *folder_get_default_trash_for_class(FolderType type)
1627 {
1628         GList *flist;
1629
1630         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1631                 Folder * folder = FOLDER(flist->data);
1632
1633                 if (folder == NULL)
1634                         continue;
1635                 if (folder->trash == NULL)
1636                         continue;
1637                 if (folder->klass->type != type)
1638                         continue;
1639
1640                 return folder->trash;
1641         }
1642
1643         return NULL;
1644 }
1645
1646 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1647 {                                                               \
1648         if (!folder->member) {                                  \
1649                 item = folder_item_new(folder, dir, dir);       \
1650                 item->stype = type;                             \
1651                 folder_item_append(rootitem, item);             \
1652                 folder->member = item;                          \
1653         }                                                       \
1654 }
1655
1656 void folder_set_missing_folders(void)
1657 {
1658         Folder *folder;
1659         FolderItem *rootitem;
1660         FolderItem *item;
1661         GList *list;
1662
1663         for (list = folder_list; list != NULL; list = list->next) {
1664                 folder = list->data;
1665                 if (FOLDER_TYPE(folder) != F_MH) continue;
1666                 rootitem = FOLDER_ITEM(folder->node->data);
1667                 g_return_if_fail(rootitem != NULL);
1668
1669                 if (folder->inbox && folder->outbox && folder->draft &&
1670                     folder->queue && folder->trash)
1671                         continue;
1672
1673                 if (folder->klass->create_tree(folder) < 0) {
1674                         g_warning("%s: can't create the folder tree.\n",
1675                                   LOCAL_FOLDER(folder)->rootpath);
1676                         continue;
1677                 }
1678
1679                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1680                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1681                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1682                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1683                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1684         }
1685 }
1686
1687 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1688 {
1689         FolderItem *item = node->data;
1690         PrefsAccount *account = data;
1691
1692         if (item->account == account)
1693                 item->account = NULL;
1694
1695         return FALSE;
1696 }
1697
1698 void folder_unref_account_all(PrefsAccount *account)
1699 {
1700         Folder *folder;
1701         GList *list;
1702
1703         if (!account) return;
1704
1705         for (list = folder_list; list != NULL; list = list->next) {
1706                 folder = list->data;
1707                 if (folder->account == account)
1708                         folder->account = NULL;
1709                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1710                                 folder_unref_account_func, account);
1711         }
1712 }
1713
1714 #undef CREATE_FOLDER_IF_NOT_EXIST
1715
1716 gchar *folder_item_get_path(FolderItem *item)
1717 {
1718         Folder *folder;
1719
1720         g_return_val_if_fail(item != NULL, NULL);
1721         folder = item->folder;
1722         g_return_val_if_fail(folder != NULL, NULL);
1723
1724         return folder->klass->item_get_path(folder, item);
1725 }
1726
1727 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1728 {
1729         MsgInfo *msginfo_a = (MsgInfo *) a;
1730         MsgInfo *msginfo_b = (MsgInfo *) b;
1731
1732         return (msginfo_a->msgnum - msginfo_b->msgnum);
1733 }
1734
1735 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1736 {
1737         guint gint_a = GPOINTER_TO_INT(a);
1738         guint gint_b = GPOINTER_TO_INT(b);
1739
1740         return (gint_a - gint_b);
1741 }
1742
1743 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1744 {
1745         GRelation *relation;
1746         gint ret = 0;
1747         GSList *cur;
1748
1749         if(msglist == NULL)
1750                 return 0;
1751         if(item->folder->klass->get_flags == NULL)
1752                 return 0;
1753         if (item->no_select)
1754                 return 0;
1755
1756         relation = g_relation_new(2);
1757         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1758         if ((ret = item->folder->klass->get_flags(
1759             item->folder, item, msglist, relation)) == 0) {
1760                 GTuples *tuples;
1761                 MsgInfo *msginfo;
1762                 MsgPermFlags permflags = 0;
1763                 gboolean skip;
1764
1765                 folder_item_update_freeze();
1766                 folder_item_set_batch(item, TRUE);
1767                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1768                         msginfo = (MsgInfo *) cur->data;
1769
1770                         tuples = g_relation_select(relation, msginfo, 0);
1771                         skip = tuples->len < 1;
1772                         if (!skip)
1773                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1774                         g_tuples_destroy(tuples);
1775                         if (skip)
1776                                 continue;
1777
1778                         if (msginfo->flags.perm_flags != permflags) {
1779                                 procmsg_msginfo_change_flags(msginfo,
1780                                         permflags & ~msginfo->flags.perm_flags, 0,
1781                                         ~permflags & msginfo->flags.perm_flags, 0);
1782                         }
1783                 }
1784                 folder_item_set_batch(item, FALSE);
1785                 folder_item_update_thaw();
1786         }
1787         g_relation_destroy(relation);
1788
1789         return ret;
1790 }
1791
1792 static gint folder_item_syncronize_flags(FolderItem *item)
1793 {
1794         MsgInfoList *msglist = NULL;
1795         GSList *cur;
1796         gint ret = 0;
1797
1798         g_return_val_if_fail(item != NULL, -1);
1799         g_return_val_if_fail(item->folder != NULL, -1);
1800         g_return_val_if_fail(item->folder->klass != NULL, -1);
1801         if (item->no_select)
1802                 return -1;
1803
1804         item->scanning = ITEM_SCANNING_WITH_FLAGS;
1805
1806         if (item->cache == NULL)
1807                 folder_item_read_cache(item);
1808
1809         msglist = msgcache_get_msg_list(item->cache);
1810
1811         ret = syncronize_flags(item, msglist);
1812
1813         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
1814                 procmsg_msginfo_free((MsgInfo *) cur->data);
1815
1816         g_slist_free(msglist);
1817
1818         item->scanning = ITEM_NOT_SCANNING;
1819
1820         return ret;
1821 }
1822
1823 static void folder_item_process_open (FolderItem *item,
1824                                  void (*before_proc_func)(gpointer data),
1825                                  void (*after_proc_func)(gpointer data),
1826                                  gpointer data)
1827 {
1828         gchar *buf;
1829         if (item == NULL)
1830                 return;
1831         if((item->folder->klass->scan_required != NULL) &&
1832            (item->folder->klass->scan_required(item->folder, item))) {
1833                 folder_item_scan_full(item, TRUE);
1834         } else {
1835                 folder_item_syncronize_flags(item);
1836         }
1837
1838         /* Processing */
1839         if (item->prefs->enable_processing_when_opening) {
1840                 buf = g_strdup_printf(_("Processing (%s)...\n"),
1841                               item->path ? item->path : item->name);
1842                 g_free(buf);
1843
1844                 if (before_proc_func)
1845                         before_proc_func(data);
1846
1847                 folder_item_apply_processing(item);
1848
1849                 if (after_proc_func)
1850                         after_proc_func(data);
1851         }
1852         item->processing_pending = FALSE;
1853         return;
1854 }
1855
1856 gint folder_item_open(FolderItem *item)
1857 {
1858         START_TIMING("");
1859         if (item->no_select)
1860                 return -1;
1861
1862         if (item->scanning != ITEM_NOT_SCANNING) {
1863                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
1864                 return -2;
1865         }
1866
1867         item->processing_pending = TRUE;
1868         folder_item_process_open (item, NULL, NULL, NULL);
1869
1870         item->opened = TRUE;
1871         END_TIMING();
1872         return 0;
1873 }
1874
1875 gint folder_item_close(FolderItem *item)
1876 {
1877         GSList *mlist, *cur;
1878         Folder *folder;
1879
1880         g_return_val_if_fail(item != NULL, -1);
1881
1882         if (item->no_select)
1883                 return -1;
1884
1885         if (item->new_msgs) {
1886                 folder_item_update_freeze();
1887                 mlist = folder_item_get_msg_list(item);
1888                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1889                         MsgInfo * msginfo;
1890
1891                         msginfo = (MsgInfo *) cur->data;
1892                         if (MSG_IS_NEW(msginfo->flags))
1893                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1894                         procmsg_msginfo_free(msginfo);
1895                 }
1896                 g_slist_free(mlist);
1897                 folder_item_update_thaw();
1898         }
1899
1900         folder_item_write_cache(item);
1901
1902         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1903
1904         item->opened = FALSE;
1905         folder = item->folder;
1906
1907         if (folder->klass->close == NULL)
1908                 return 0;
1909
1910         return folder->klass->close(folder, item);
1911 }
1912
1913 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
1914 {
1915         MsgInfoList *msglist = NULL;
1916         Folder *folder = item->folder;
1917         if (item->no_select)
1918                 return NULL;
1919
1920         if (folder->klass->get_msginfos != NULL)
1921                 msglist = folder->klass->get_msginfos(folder, item, numlist);
1922         else {
1923                 MsgNumberList *elem;
1924
1925                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
1926                         MsgInfo *msginfo;
1927                         guint num;
1928
1929                         num = GPOINTER_TO_INT(elem->data);
1930                         msginfo = folder->klass->get_msginfo(folder, item, num);
1931                         if (msginfo != NULL)
1932                                 msglist = g_slist_prepend(msglist, msginfo);
1933                 }
1934         }
1935
1936         return msglist;
1937 }
1938
1939 static MsgInfo *get_msginfo(FolderItem *item, guint num)
1940 {
1941         MsgNumberList numlist;
1942         MsgInfoList *msglist;
1943         MsgInfo *msginfo = NULL;
1944
1945         numlist.data = GINT_TO_POINTER(num);
1946         numlist.next = NULL;
1947         msglist = get_msginfos(item, &numlist);
1948         if (msglist != NULL)
1949                 msginfo = procmsg_msginfo_new_ref(msglist->data);
1950         procmsg_msg_list_free(msglist);
1951
1952         return msginfo;
1953 }
1954
1955 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1956 {
1957         Folder *folder;
1958         GSList *folder_list = NULL, *cache_list = NULL;
1959         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1960         GSList *exists_list = NULL, *elem;
1961         GSList *newmsg_list = NULL;
1962         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
1963         guint markedcnt = 0, unreadmarkedcnt = 0;
1964         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1965         gboolean update_flags = 0, old_uids_valid = FALSE;
1966         GHashTable *subject_table = NULL;
1967
1968         g_return_val_if_fail(item != NULL, -1);
1969         if (item->path == NULL) return -1;
1970
1971         folder = item->folder;
1972
1973         g_return_val_if_fail(folder != NULL, -1);
1974         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1975
1976         item->scanning = ITEM_SCANNING_WITH_FLAGS;
1977
1978         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
1979
1980         /* Get list of messages for folder and cache */
1981         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1982                 debug_print("Error fetching list of message numbers\n");
1983                 item->scanning = ITEM_NOT_SCANNING;
1984                 return(-1);
1985         }
1986
1987         if(prefs_common.thread_by_subject) {
1988                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
1989         }
1990
1991         if (old_uids_valid) {
1992                 if (!item->cache)
1993                         folder_item_read_cache(item);
1994                 cache_list = msgcache_get_msg_list(item->cache);
1995         } else {
1996                 if (item->cache)
1997                         msgcache_destroy(item->cache);
1998                 item->cache = msgcache_new();
1999                 cache_list = NULL;
2000         }
2001
2002         /* Sort both lists */
2003         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
2004         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
2005
2006         cache_list_cur = cache_list;
2007         folder_list_cur = folder_list;
2008
2009         if (cache_list_cur != NULL) {
2010                 GSList *cache_list_last;
2011
2012                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2013                 cache_list_last = g_slist_last(cache_list);
2014                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
2015         } else {
2016                 cache_cur_num = G_MAXINT;
2017                 cache_max_num = 0;
2018         }
2019
2020         if (folder_list_cur != NULL) {
2021                 GSList *folder_list_last;
2022
2023                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2024                 folder_list_last = g_slist_last(folder_list);
2025                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
2026         } else {
2027                 folder_cur_num = G_MAXINT;
2028                 folder_max_num = 0;
2029         }
2030
2031         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
2032                 /*
2033                  *  Message only exists in the folder
2034                  *  Remember message for fetching
2035                  */
2036                 if (folder_cur_num < cache_cur_num) {
2037                         gboolean add = FALSE;
2038
2039                         switch(FOLDER_TYPE(folder)) {
2040                                 case F_NEWS:
2041                                         if (folder_cur_num < cache_max_num)
2042                                                 break;
2043
2044                                         if (folder->account->max_articles == 0) {
2045                                                 add = TRUE;
2046                                         }
2047
2048                                         if (folder_max_num <= folder->account->max_articles) {
2049                                                 add = TRUE;
2050                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
2051                                                 add = TRUE;
2052                                         }
2053                                         break;
2054                                 default:
2055                                         add = TRUE;
2056                                         break;
2057                         }
2058
2059                         if (add) {
2060                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
2061                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
2062                         }
2063
2064                         /* Move to next folder number */
2065                         folder_list_cur = folder_list_cur->next;
2066
2067                         if (folder_list_cur != NULL)
2068                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2069                         else
2070                                 folder_cur_num = G_MAXINT;
2071
2072                         continue;
2073                 }
2074
2075                 /*
2076                  *  Message only exists in the cache
2077                  *  Remove the message from the cache
2078                  */
2079                 if (cache_cur_num < folder_cur_num) {
2080                         msgcache_remove_msg(item->cache, cache_cur_num);
2081                         debug_print("Removed message %d from cache.\n", cache_cur_num);
2082
2083                         /* Move to next cache number */
2084                         cache_list_cur = cache_list_cur->next;
2085
2086                         if (cache_list_cur != NULL)
2087                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2088                         else
2089                                 cache_cur_num = G_MAXINT;
2090
2091                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2092
2093                         continue;
2094                 }
2095
2096                 /*
2097                  *  Message number exists in folder and cache!
2098                  *  Check if the message has been modified
2099                  */
2100                 if (cache_cur_num == folder_cur_num) {
2101                         MsgInfo *msginfo;
2102
2103                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
2104                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
2105                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2106                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
2107                                 procmsg_msginfo_free(msginfo);
2108
2109                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
2110                         } else {
2111                                 exists_list = g_slist_prepend(exists_list, msginfo);
2112
2113                                 if(prefs_common.thread_by_subject &&
2114                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2115                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2116                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2117                                 }
2118                         }
2119
2120                         /* Move to next folder and cache number */
2121                         cache_list_cur = cache_list_cur->next;
2122                         folder_list_cur = folder_list_cur->next;
2123
2124                         if (cache_list_cur != NULL)
2125                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2126                         else
2127                                 cache_cur_num = G_MAXINT;
2128
2129                         if (folder_list_cur != NULL)
2130                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2131                         else
2132                                 folder_cur_num = G_MAXINT;
2133
2134                         continue;
2135                 }
2136         }
2137
2138         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
2139                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
2140
2141         g_slist_free(cache_list);
2142         g_slist_free(folder_list);
2143
2144         if (new_list != NULL) {
2145                 GSList *tmp_list = NULL;
2146                 newmsg_list = get_msginfos(item, new_list);
2147                 g_slist_free(new_list);
2148                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2149                 syncronize_flags(item, tmp_list);
2150                 g_slist_free(tmp_list);
2151         } else {
2152                 syncronize_flags(item, exists_list);
2153         }
2154
2155         folder_item_update_freeze();
2156
2157         item->scanning = ITEM_SCANNING;
2158
2159         if (newmsg_list != NULL) {
2160                 GSList *elem, *to_filter = NULL;
2161                 gboolean do_filter = (filtering == TRUE) &&
2162                                         (item->stype == F_INBOX) &&
2163                                         (item->folder->account != NULL) &&
2164                                         (item->folder->account->filter_on_recv);
2165
2166                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2167                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2168
2169                         msgcache_add_msg(item->cache, msginfo);
2170                         if (!do_filter) {
2171                                 exists_list = g_slist_prepend(exists_list, msginfo);
2172
2173                                 if(prefs_common.thread_by_subject &&
2174                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2175                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2176                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2177                                 }
2178                         }
2179                 }
2180
2181                 if (do_filter) {
2182                         GSList *unfiltered;
2183
2184                         folder_item_set_batch(item, TRUE);
2185                         procmsg_msglist_filter(newmsg_list, item->folder->account,
2186                                         &to_filter, &unfiltered,
2187                                         TRUE);
2188                         folder_item_set_batch(item, FALSE);
2189
2190                         filtering_move_and_copy_msgs(newmsg_list);
2191                         if (to_filter != NULL) {
2192                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2193                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2194                                         procmsg_msginfo_free(msginfo);
2195                                 }
2196                                 g_slist_free(to_filter);
2197                         }
2198                         if (unfiltered != NULL) {
2199                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2200                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2201                                         exists_list = g_slist_prepend(exists_list, msginfo);
2202
2203                                         if(prefs_common.thread_by_subject &&
2204                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2205                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2206                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2207                                         }
2208                                 }
2209                                 g_slist_free(unfiltered);
2210                         }
2211                         if (prefs_common.real_time_sync)
2212                                 folder_item_synchronise(item);
2213                 } else {
2214                         if (prefs_common.real_time_sync)
2215                                 folder_item_synchronise(item);
2216                 }
2217
2218                 g_slist_free(newmsg_list);
2219
2220                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2221         }
2222
2223         folder_item_set_batch(item, TRUE);
2224         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2225                 MsgInfo *msginfo, *parent_msginfo;
2226
2227                 msginfo = elem->data;
2228                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2229                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2230                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2231                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2232                 }
2233                 if (!MSG_IS_WATCH_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_WATCH_THREAD)) {
2234                         procmsg_msginfo_set_flags(msginfo, MSG_WATCH_THREAD, 0);
2235                 }
2236                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2237                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2238                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2239                 {
2240                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2241                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2242                                                 MSG_NEW | MSG_UNREAD, 0);
2243                         }
2244                 }
2245                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2246                      folder_has_parent_of_type(item, F_QUEUE)  ||
2247                      folder_has_parent_of_type(item, F_DRAFT)  ||
2248                      folder_has_parent_of_type(item, F_TRASH)) &&
2249                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2250                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2251                 if (MSG_IS_NEW(msginfo->flags))
2252                         newcnt++;
2253                 if (MSG_IS_UNREAD(msginfo->flags))
2254                         unreadcnt++;
2255                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2256                         unreadmarkedcnt++;
2257                 if (MSG_IS_MARKED(msginfo->flags))
2258                         markedcnt++;
2259
2260                 totalcnt++;
2261
2262                 procmsg_msginfo_free(msginfo);
2263         }
2264         folder_item_set_batch(item, FALSE);
2265         g_slist_free(exists_list);
2266
2267         if(prefs_common.thread_by_subject) {
2268                 g_hash_table_destroy(subject_table);
2269         }
2270
2271         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2272         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2273         ||  item->unreadmarked_msgs != unreadmarkedcnt) {
2274                 update_flags |= F_ITEM_UPDATE_CONTENT;
2275         }
2276
2277         item->new_msgs = newcnt;
2278         item->unread_msgs = unreadcnt;
2279         item->total_msgs = totalcnt;
2280         item->unreadmarked_msgs = unreadmarkedcnt;
2281         item->marked_msgs = markedcnt;
2282
2283         update_flags |= F_ITEM_UPDATE_MSGCNT;
2284
2285         folder_item_update(item, update_flags);
2286         folder_item_update_thaw();
2287
2288         item->scanning = ITEM_NOT_SCANNING;
2289
2290         return 0;
2291 }
2292
2293 gint folder_item_scan(FolderItem *item)
2294 {
2295         return folder_item_scan_full(item, TRUE);
2296 }
2297
2298 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2299 {
2300         gint *memusage = (gint *)data;
2301
2302         if (item->cache == NULL)
2303                 return;
2304
2305         *memusage += msgcache_get_memory_usage(item->cache);
2306 }
2307
2308 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2309 {
2310         FolderItem *fa = (FolderItem *)a;
2311         FolderItem *fb = (FolderItem *)b;
2312
2313         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2314 }
2315
2316 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2317 {
2318         GSList **folder_item_list = (GSList **)data;
2319         gint difftime, expiretime;
2320
2321         if (item->cache == NULL)
2322                 return;
2323
2324         if (item->opened > 0)
2325                 return;
2326
2327         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2328         expiretime = prefs_common.cache_min_keep_time * 60;
2329         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2330
2331         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2332                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2333         }
2334 }
2335
2336 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2337 {
2338         g_return_val_if_fail(item != NULL, TRUE);
2339
2340         if (item->cache == NULL)
2341                 return TRUE;
2342
2343         if (item->opened > 0 && !force)
2344                 return FALSE;
2345
2346         folder_item_write_cache(item);
2347         msgcache_destroy(item->cache);
2348         item->cache = NULL;
2349         return TRUE;
2350 }
2351
2352 void folder_clean_cache_memory_force(void)
2353 {
2354         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2355         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2356
2357         prefs_common.cache_max_mem_usage = 0;
2358         prefs_common.cache_min_keep_time = 0;
2359
2360         folder_clean_cache_memory(NULL);
2361
2362         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2363         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2364 }
2365
2366 void folder_clean_cache_memory(FolderItem *protected_item)
2367 {
2368         gint memusage = 0;
2369
2370         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2371         debug_print("Total cache memory usage: %d\n", memusage);
2372
2373         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2374                 GSList *folder_item_list = NULL, *listitem;
2375
2376                 debug_print("Trying to free cache memory\n");
2377
2378                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2379                 listitem = folder_item_list;
2380                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2381                         FolderItem *item = (FolderItem *)(listitem->data);
2382                         gint cache_size = 0;
2383                         if (item == protected_item) {
2384                                 listitem = listitem->next;
2385                                 continue;
2386                         }
2387                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2388                         cache_size = msgcache_get_memory_usage(item->cache);
2389                         if (folder_item_free_cache(item, FALSE))
2390                                 memusage -= cache_size;
2391
2392                         listitem = listitem->next;
2393                 }
2394                 g_slist_free(folder_item_list);
2395         }
2396 }
2397
2398 static void folder_item_remove_cached_msg(FolderItem *item, MsgInfo *msginfo)
2399 {
2400         Folder *folder = item->folder;
2401
2402         g_return_if_fail(folder != NULL);
2403
2404         if (folder->klass->remove_cached_msg == NULL)
2405                 return;
2406
2407         folder->klass->remove_cached_msg(folder, item, msginfo);
2408 }
2409
2410 static void folder_item_clean_local_files(FolderItem *item, gint days)
2411 {
2412         g_return_if_fail(item != NULL);
2413         g_return_if_fail(item->folder != NULL);
2414
2415         if (FOLDER_TYPE(item->folder) == F_IMAP ||
2416             FOLDER_TYPE(item->folder) == F_NEWS) {
2417                 GSList *msglist = folder_item_get_msg_list(item);
2418                 GSList *cur;
2419                 time_t t = time(NULL);
2420                 for (cur = msglist; cur; cur = cur->next) {
2421                         MsgInfo *msginfo = (MsgInfo *)cur->data;
2422                         gint age = (t - msginfo->date_t) / (60*60*24);
2423                         if (age > days)
2424                                 folder_item_remove_cached_msg(item, msginfo);
2425                 }
2426                 procmsg_msg_list_free(msglist);
2427         }
2428 }
2429
2430 static void folder_item_read_cache(FolderItem *item)
2431 {
2432         gchar *cache_file, *mark_file, *tags_file;
2433         START_TIMING("");
2434         g_return_if_fail(item != NULL);
2435
2436         if (item->path != NULL) {
2437                 cache_file = folder_item_get_cache_file(item);
2438                 mark_file = folder_item_get_mark_file(item);
2439                 tags_file = folder_item_get_tags_file(item);
2440                 item->cache = msgcache_read_cache(item, cache_file);
2441                 if (!item->cache) {
2442                         MsgInfoList *list, *cur;
2443                         guint newcnt = 0, unreadcnt = 0;
2444                         guint markedcnt = 0, unreadmarkedcnt = 0;
2445                         MsgInfo *msginfo;
2446
2447                         item->cache = msgcache_new();
2448                         folder_item_scan_full(item, TRUE);
2449
2450                         msgcache_read_mark(item->cache, mark_file);
2451
2452                         list = msgcache_get_msg_list(item->cache);
2453                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2454                                 msginfo = cur->data;
2455
2456                                 if (MSG_IS_NEW(msginfo->flags))
2457                                         newcnt++;
2458                                 if (MSG_IS_UNREAD(msginfo->flags))
2459                                         unreadcnt++;
2460                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2461                                         unreadmarkedcnt++;
2462                                 if (MSG_IS_MARKED(msginfo->flags))
2463                                         markedcnt++;
2464                                 procmsg_msginfo_unset_flags(msginfo, MSG_FULLY_CACHED, 0);
2465                         }
2466                         item->new_msgs = newcnt;
2467                         item->unread_msgs = unreadcnt;
2468                         item->unreadmarked_msgs = unreadmarkedcnt;
2469                         item->marked_msgs = markedcnt;
2470                         procmsg_msg_list_free(list);
2471                 } else
2472                         msgcache_read_mark(item->cache, mark_file);
2473
2474                 msgcache_read_tags(item->cache, tags_file);
2475
2476                 g_free(cache_file);
2477                 g_free(mark_file);
2478                 g_free(tags_file);
2479         } else {
2480                 item->cache = msgcache_new();
2481         }
2482         END_TIMING();
2483         folder_clean_cache_memory(item);
2484 }
2485
2486 void folder_item_write_cache(FolderItem *item)
2487 {
2488         gchar *cache_file, *mark_file, *tags_file;
2489         FolderItemPrefs *prefs;
2490         gint filemode = 0;
2491         gchar *id;
2492         time_t last_mtime = (time_t)0;
2493         gboolean need_scan = FALSE;
2494
2495         if (!item || !item->path || !item->cache)
2496                 return;
2497
2498         last_mtime = item->mtime;
2499         need_scan = item->folder->klass->scan_required(item->folder, item);
2500
2501         id = folder_item_get_identifier(item);
2502         debug_print("Save cache for folder %s\n", id);
2503         g_free(id);
2504
2505         cache_file = folder_item_get_cache_file(item);
2506         mark_file = folder_item_get_mark_file(item);
2507         tags_file = folder_item_get_tags_file(item);
2508         if (msgcache_write(cache_file, mark_file, tags_file, item->cache) < 0) {
2509                 prefs = item->prefs;
2510                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2511                         /* for cache file */
2512                         filemode = prefs->folder_chmod;
2513                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2514                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2515                         chmod(cache_file, filemode);
2516                 }
2517         }
2518
2519         if (!need_scan && item->folder->klass->set_mtime) {
2520                 if (item->mtime == last_mtime) {
2521                         item->folder->klass->set_mtime(item->folder, item);
2522                 }
2523         }
2524
2525         g_free(cache_file);
2526         g_free(mark_file);
2527         g_free(tags_file);
2528 }
2529
2530 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2531 {
2532         Folder *folder;
2533         MsgInfo *msginfo = NULL;
2534
2535         g_return_val_if_fail(item != NULL, NULL);
2536         if (item->no_select)
2537                 return NULL;
2538         folder = item->folder;
2539         if (!item->cache)
2540                 folder_item_read_cache(item);
2541
2542         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2543                 return msginfo;
2544
2545         msginfo = get_msginfo(item, num);
2546         if (msginfo != NULL) {
2547                 msgcache_add_msg(item->cache, msginfo);
2548                 return msginfo;
2549         }
2550
2551         return NULL;
2552 }
2553
2554 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2555 {
2556         Folder *folder;
2557         MsgInfo *msginfo;
2558
2559         g_return_val_if_fail(item != NULL, NULL);
2560         g_return_val_if_fail(msgid != NULL, NULL);
2561         if (item->no_select)
2562                 return FALSE;
2563
2564         folder = item->folder;
2565         if (!item->cache)
2566                 folder_item_read_cache(item);
2567
2568         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2569                 return msginfo;
2570
2571         return NULL;
2572 }
2573
2574 GSList *folder_item_get_msg_list(FolderItem *item)
2575 {
2576         g_return_val_if_fail(item != NULL, NULL);
2577         if (item->no_select)
2578                 return FALSE;
2579
2580         if (item->cache == 0)
2581                 folder_item_read_cache(item);
2582
2583         g_return_val_if_fail(item->cache != NULL, NULL);
2584
2585         return msgcache_get_msg_list(item->cache);
2586 }
2587
2588 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2589 {
2590         MsgInfo *msginfo = data;
2591         MimeInfo *mimeinfo = node->data;
2592
2593         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2594          && (!mimeinfo->subtype ||  strcmp(mimeinfo->subtype, "pgp-signature"))) {
2595                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2596         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2597                  mimeinfo->type != MIMETYPE_TEXT &&
2598                  mimeinfo->type != MIMETYPE_MULTIPART) {
2599                 if (!mimeinfo->subtype
2600                 ||  strcmp(mimeinfo->subtype, "pgp-signature"))
2601                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2602         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2603                 strcmp(mimeinfo->subtype, "pgp-signature") &&
2604                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2605                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2606                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2607         }
2608
2609         /* don't descend below top level message for signed and encrypted info */
2610         if (mimeinfo->type == MIMETYPE_MESSAGE)
2611                 return;
2612
2613         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2614                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2615         }
2616
2617         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2618                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2619         } else {
2620                 /* searching inside encrypted parts doesn't really make sense */
2621                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2622         }
2623 }
2624
2625 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2626 {
2627         Folder *folder;
2628         gchar *msgfile;
2629         MsgInfo *msginfo;
2630
2631         g_return_val_if_fail(item != NULL, NULL);
2632
2633         folder = item->folder;
2634
2635         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2636         if (item->no_select)
2637                 return NULL;
2638
2639         msgfile = folder->klass->fetch_msg(folder, item, num);
2640
2641         if (msgfile != NULL) {
2642                 msginfo = folder_item_get_msginfo(item, num);
2643                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2644                         MimeInfo *mimeinfo;
2645
2646                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2647                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2648                                 mimeinfo = procmime_scan_file(msgfile);
2649                         else
2650                                 mimeinfo = procmime_scan_queue_file(msgfile);
2651                         /* check for attachments */
2652                         if (mimeinfo != NULL) {
2653                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2654                                 procmime_mimeinfo_free_all(mimeinfo);
2655
2656                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2657                         }
2658                 }
2659                 procmsg_msginfo_free(msginfo);
2660         }
2661
2662         return msgfile;
2663 }
2664
2665 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2666                                   gboolean body)
2667 {
2668         Folder *folder;
2669         gchar *msgfile;
2670         MsgInfo *msginfo;
2671
2672         g_return_val_if_fail(item != NULL, NULL);
2673         if (item->no_select)
2674                 return NULL;
2675
2676         folder = item->folder;
2677
2678         if (folder->klass->fetch_msg_full == NULL)
2679                 return folder_item_fetch_msg(item, num);
2680
2681         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2682                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2683                                                 TRUE, TRUE);
2684         else
2685                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2686                                                 headers, body);
2687
2688         if (msgfile != NULL) {
2689                 msginfo = folder_item_get_msginfo(item, num);
2690                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2691                         MimeInfo *mimeinfo;
2692
2693                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2694                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2695                                 mimeinfo = procmime_scan_file(msgfile);
2696                         else
2697                                 mimeinfo = procmime_scan_queue_file(msgfile);
2698                         /* check for attachments */
2699                         if (mimeinfo != NULL) {
2700                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2701                                 procmime_mimeinfo_free_all(mimeinfo);
2702
2703                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2704                         }
2705                 }
2706                 procmsg_msginfo_free(msginfo);
2707         }
2708
2709         return msgfile;
2710 }
2711
2712
2713 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2714 {
2715         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2716                                        {NULL,           NULL, FALSE}};
2717         FILE *fp;
2718         MsgInfo *msginfo;
2719         gint msgnum = 0;
2720         gchar buf[BUFFSIZE];
2721
2722         if ((fp = g_fopen(file, "rb")) == NULL)
2723                 return 0;
2724
2725         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2726             (folder_has_parent_of_type(dest, F_DRAFT)))
2727                 while (fgets(buf, sizeof(buf), fp) != NULL) {
2728                         /* new way */
2729                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
2730                                 strlen("X-Claws-End-Special-Headers:"))) ||
2731                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
2732                                 strlen("X-Sylpheed-End-Special-Headers:"))))
2733                                 break;
2734                         /* old way */
2735                         if (buf[0] == '\r' || buf[0] == '\n') break;
2736                         /* from other mailers */
2737                         if (!strncmp(buf, "Date: ", 6)
2738                         ||  !strncmp(buf, "To: ", 4)
2739                         ||  !strncmp(buf, "From: ", 6)
2740                         ||  !strncmp(buf, "Subject: ", 9)) {
2741                                 rewind(fp);
2742                                 break;
2743                         }
2744                 }
2745
2746         procheader_get_header_fields(fp, hentry);
2747         debug_print("looking for %s\n", hentry[0].body);
2748         if (hentry[0].body) {
2749                 extract_parenthesis(hentry[0].body, '<', '>');
2750                 remove_space(hentry[0].body);
2751                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2752                         msgnum = msginfo->msgnum;
2753                         procmsg_msginfo_free(msginfo);
2754
2755                         debug_print("found message as uid %d\n", msgnum);
2756                 }
2757         }
2758
2759         g_free(hentry[0].body);
2760         hentry[0].body = NULL;
2761         fclose(fp);
2762
2763         return msgnum;
2764 }
2765
2766 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2767 {
2768         MsgPermFlags perm_flags = 0;
2769         MsgTmpFlags tmp_flags = 0;
2770
2771         /* create new flags */
2772         if (source != NULL) {
2773                 /* copy original flags */
2774                 perm_flags = source->flags.perm_flags;
2775                 tmp_flags = source->flags.tmp_flags;
2776         } else {
2777                 perm_flags = dest->flags.perm_flags;
2778                 tmp_flags = dest->flags.tmp_flags;
2779         }
2780
2781         /* remove new, unread and deleted in special folders */
2782         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
2783             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
2784             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
2785             folder_has_parent_of_type(dest->folder, F_TRASH))
2786                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
2787
2788         /* set ignore flag of ignored parent exists */
2789         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
2790                 perm_flags |= MSG_IGNORE_THREAD;
2791
2792         /* unset FULLY_CACHED flags */
2793         perm_flags &= ~MSG_FULLY_CACHED;
2794
2795         if (procmsg_msg_has_flagged_parent(dest, MSG_WATCH_THREAD))
2796                 perm_flags |= MSG_WATCH_THREAD;
2797
2798         /* Unset tmp flags that should not be copied */
2799         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
2800
2801         /* unset flags that are set but should not */
2802         /* and set new flags */
2803         procmsg_msginfo_change_flags(dest,
2804                                   ~dest->flags.perm_flags & perm_flags,
2805                                   ~dest->flags.tmp_flags  & tmp_flags,
2806                                    dest->flags.perm_flags & ~perm_flags,
2807                                    dest->flags.tmp_flags  & ~tmp_flags);
2808
2809         if (source && source->tags) {
2810                 g_slist_free(dest->tags);
2811                 dest->tags = g_slist_copy(source->tags);
2812                 folder_item_commit_tags(dest->folder, dest, dest->tags, NULL);
2813         }
2814 }
2815
2816 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
2817 {
2818         /* update folder stats */
2819         if (MSG_IS_NEW(newmsginfo->flags))
2820                 item->new_msgs++;
2821         if (MSG_IS_UNREAD(newmsginfo->flags))
2822                 item->unread_msgs++;
2823         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
2824                 item->unreadmarked_msgs++;
2825         if (MSG_IS_MARKED(newmsginfo->flags))
2826                 item->marked_msgs++;
2827         item->total_msgs++;
2828
2829         folder_item_update_freeze();
2830
2831         if (!item->cache)
2832                 folder_item_read_cache(item);
2833
2834         msgcache_add_msg(item->cache, newmsginfo);
2835         copy_msginfo_flags(flagsource, newmsginfo);
2836         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
2837         folder_item_update_thaw();
2838 }
2839
2840 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
2841 {
2842         MsgInfoUpdate msginfo_update;
2843
2844         if (!item->cache)
2845                 folder_item_read_cache(item);
2846
2847         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2848                 msginfo->folder->new_msgs--;
2849         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2850                 msginfo->folder->unread_msgs--;
2851         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2852                 msginfo->folder->unreadmarked_msgs--;
2853         if (MSG_IS_MARKED(msginfo->flags))
2854                 item->marked_msgs--;
2855
2856         msginfo->folder->total_msgs--;
2857
2858         msginfo_update.msginfo = msginfo;
2859         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
2860         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2861
2862         msgcache_remove_msg(item->cache, msginfo->msgnum);
2863         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
2864 }
2865
2866 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
2867                          MsgFlags *flags, gboolean remove_source)
2868 {
2869         GSList file_list;
2870         MsgFileInfo fileinfo;
2871
2872         g_return_val_if_fail(dest != NULL, -1);
2873         g_return_val_if_fail(file != NULL, -1);
2874
2875         fileinfo.msginfo = NULL;
2876         fileinfo.file = (gchar *)file;
2877         fileinfo.flags = flags;
2878         file_list.data = &fileinfo;
2879         file_list.next = NULL;
2880
2881         return folder_item_add_msgs(dest, &file_list, remove_source);
2882 }
2883
2884 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
2885                           gboolean remove_source)
2886 {
2887         Folder *folder;
2888         gint ret, num, lastnum = -1;
2889         GSList *file_cur;
2890         GRelation *relation;
2891         MsgFileInfo *fileinfo = NULL;
2892         gboolean folderscan = FALSE;
2893
2894         g_return_val_if_fail(dest != NULL, -1);
2895         g_return_val_if_fail(file_list != NULL, -1);
2896         g_return_val_if_fail(dest->folder != NULL, -1);
2897         if (dest->no_select)
2898                 return -1;
2899
2900         folder = dest->folder;
2901
2902         relation = g_relation_new(2);
2903         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2904
2905         if (folder->klass->add_msgs != NULL) {
2906                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
2907                 if (ret < 0) {
2908                         g_relation_destroy(relation);
2909                         return ret;
2910                 }
2911         } else {
2912                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2913                         fileinfo = (MsgFileInfo *) file_cur->data;
2914
2915                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
2916                         if (ret < 0) {
2917                                 g_relation_destroy(relation);
2918                                 return ret;
2919                         }
2920                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
2921                 }
2922         }
2923
2924         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2925                 GTuples *tuples;
2926
2927                 fileinfo = (MsgFileInfo *) file_cur->data;
2928                 tuples = g_relation_select(relation, fileinfo, 0);
2929                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2930                 g_tuples_destroy(tuples);
2931
2932                 if (num >= 0) {
2933                         MsgInfo *newmsginfo;
2934
2935                         if (num == 0) {
2936                                 if (!folderscan) {
2937                                         folder_item_scan_full(dest, FALSE);
2938                                         folderscan = TRUE;
2939                                 }
2940                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
2941                                 debug_print("got num %d\n", num);
2942                         }
2943
2944                         if (num > lastnum)
2945                                 lastnum = num;
2946
2947                         if (num >= 0 && remove_source) {
2948                                 if (g_unlink(fileinfo->file) < 0)
2949                                         FILE_OP_ERROR(fileinfo->file, "unlink");
2950                         }
2951
2952                         if (num == 0)
2953                                 continue;
2954
2955                         if (!folderscan &&
2956                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
2957                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
2958                                 procmsg_msginfo_free(newmsginfo);
2959                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2960                                 /* TODO: set default flags */
2961                                 procmsg_msginfo_free(newmsginfo);
2962                         }
2963                 }
2964         }
2965
2966         g_relation_destroy(relation);
2967
2968         return lastnum;
2969 }
2970
2971 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy)
2972 {
2973         GSList *mlist;
2974         FolderItem *new_item;
2975         FolderItem *next_item;
2976         GNode *srcnode;
2977         gchar *old_id, *new_id;
2978
2979         /* move messages */
2980         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
2981         new_item = folder_create_folder(dest, src->name);
2982         if (new_item == NULL) {
2983                 g_print("Can't create folder\n");
2984                 return NULL;
2985         }
2986
2987         if (new_item->folder == NULL)
2988                 new_item->folder = dest->folder;
2989
2990         /* move messages */
2991         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"),
2992                         src->name, new_item->path);
2993
2994         mlist = folder_item_get_msg_list(src);
2995
2996         if (mlist != NULL) {
2997                 if (copy)
2998                         folder_item_copy_msgs(new_item, mlist);
2999                 else
3000                         folder_item_move_msgs(new_item, mlist);
3001                 procmsg_msg_list_free(mlist);
3002         }
3003
3004         /*copy prefs*/
3005         folder_item_prefs_copy_prefs(src, new_item);
3006
3007         /* copy internal data */
3008         if (src->folder->klass == new_item->folder->klass &&
3009             src->folder->klass->copy_private_data != NULL)
3010                 src->folder->klass->copy_private_data(src->folder,
3011                                         src, new_item);
3012         new_item->collapsed = src->collapsed;
3013         new_item->thread_collapsed = src->thread_collapsed;
3014         new_item->threaded  = src->threaded;
3015         new_item->ret_rcpt  = src->ret_rcpt;
3016         new_item->hide_read_msgs = src->hide_read_msgs;
3017         new_item->sort_key  = src->sort_key;
3018         new_item->sort_type = src->sort_type;
3019
3020         prefs_matcher_write_config();
3021
3022         /* recurse */
3023         srcnode = src->folder->node;
3024         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
3025         srcnode = srcnode->children;
3026         while (srcnode != NULL) {
3027                 if (srcnode && srcnode->data) {
3028                         next_item = (FolderItem*) srcnode->data;
3029                         srcnode = srcnode->next;
3030                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
3031                                 return NULL;
3032                         }
3033                 }
3034         }
3035         old_id = folder_item_get_identifier(src);
3036         new_id = folder_item_get_identifier(new_item);
3037
3038         /* if src supports removing, otherwise only copy folder */
3039         if (src->folder->klass->remove_folder != NULL && !copy)
3040                 src->folder->klass->remove_folder(src->folder, src);
3041         folder_write_list();
3042
3043         if (!copy) {
3044                 debug_print("updating rules : %s => %s\n", old_id, new_id);
3045                 if (old_id != NULL && new_id != NULL) {
3046                         prefs_filtering_rename_path(old_id, new_id);
3047                         account_rename_path(old_id, new_id);
3048                 }
3049         }
3050         g_free(old_id);
3051         g_free(new_id);
3052
3053         return new_item;
3054 }
3055
3056 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
3057 {
3058         FolderItem *tmp = folder_item_parent(dest);
3059         gchar * src_identifier, * dst_identifier;
3060         gchar * phys_srcpath, * phys_dstpath, *tmppath;
3061
3062         while (tmp) {
3063                 if (tmp == src) {
3064                         return F_MOVE_FAILED_DEST_IS_CHILD;
3065                 }
3066                 tmp = folder_item_parent(tmp);
3067         }
3068
3069         tmp = folder_item_parent(src);
3070
3071         src_identifier = folder_item_get_identifier(src);
3072         dst_identifier = folder_item_get_identifier(dest);
3073
3074         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
3075                 /* dest can be a root folder */
3076                 dst_identifier = folder_get_identifier(dest->folder);
3077         }
3078         if (src_identifier == NULL || dst_identifier == NULL) {
3079                 debug_print("Can't get identifiers\n");
3080                 return F_MOVE_FAILED;
3081         }
3082
3083         if (src->folder != dest->folder && !copy) {
3084                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
3085         }
3086
3087         phys_srcpath = folder_item_get_path(src);
3088         tmppath = folder_item_get_path(dest);
3089         phys_dstpath = g_strconcat(tmppath,
3090                        G_DIR_SEPARATOR_S,
3091                        g_path_get_basename(phys_srcpath),
3092                        NULL);
3093         g_free(tmppath);
3094
3095         if (folder_item_parent(src) == dest || src == dest) {
3096                 g_free(src_identifier);
3097                 g_free(dst_identifier);
3098                 g_free(phys_srcpath);
3099                 g_free(phys_dstpath);
3100                 return F_MOVE_FAILED_DEST_IS_PARENT;
3101         }
3102         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
3103         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
3104                 return F_MOVE_FAILED;
3105         }
3106
3107         g_free(src_identifier);
3108         g_free(dst_identifier);
3109         g_free(phys_srcpath);
3110         g_free(phys_dstpath);
3111
3112         *new_item = tmp;
3113
3114         return F_MOVE_OK;
3115 }
3116
3117 /**
3118  * Copy a list of message to a new folder and remove
3119  * source messages if wanted
3120  */
3121 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
3122 {
3123         Folder *folder;
3124         GSList *l;
3125         gint num, lastnum = -1;
3126         gboolean folderscan = FALSE;
3127         GRelation *relation;
3128         GSList *not_moved = NULL;
3129         gint total = 0, curmsg = 0;
3130         MsgInfo *msginfo = NULL;
3131
3132         g_return_val_if_fail(dest != NULL, -1);
3133         g_return_val_if_fail(msglist != NULL, -1);
3134
3135         folder = dest->folder;
3136
3137         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3138         if (dest->no_select)
3139                 return -1;
3140
3141         msginfo = (MsgInfo *)msglist->data;
3142
3143         if (!msginfo)
3144                 return -1;
3145
3146         if (!MSG_IS_QUEUED(msginfo->flags) &&
3147             MSG_IS_DRAFT(msginfo->flags) &&
3148             folder_has_parent_of_type(dest, F_QUEUE)) {
3149                 GSList *cur = msglist;
3150                 gboolean queue_err = FALSE;
3151                 for (; cur; cur = cur->next) {
3152                         Compose *compose = NULL;
3153                         FolderItem *queue = dest;
3154                         int val = 0;
3155
3156                         msginfo = (MsgInfo *)cur->data;
3157                         compose = compose_reedit(msginfo, TRUE);
3158                         if (compose == NULL) {
3159                                 queue_err = TRUE;
3160                                 continue;
3161                         }
3162                         val = compose_queue(compose, NULL, &queue, NULL,
3163                                         FALSE);
3164                         if (val < 0) {
3165                                 queue_err = TRUE;
3166                         } else if (remove_source) {
3167                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3168                         }
3169                         if (val == 0)
3170                                 compose_close(compose);
3171                 }
3172                 return queue_err ? -1:0;
3173         }
3174
3175         relation = g_relation_new(2);
3176         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3177         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
3178
3179         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3180                 MsgInfo * msginfo = (MsgInfo *) l->data;
3181
3182                 if (msginfo->planned_download != 0) {
3183                         int old_planned = msginfo->planned_download;
3184                         partial_unmark(msginfo);
3185                         /* little hack to reenable after */
3186                         msginfo->planned_download = old_planned;
3187                 }
3188         }
3189
3190         /*
3191          * Copy messages to destination folder and
3192          * store new message numbers in newmsgnums
3193          */
3194         if (folder->klass->copy_msgs != NULL) {
3195                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3196                         g_relation_destroy(relation);
3197                         return -1;
3198                 }
3199         } else {
3200                 MsgInfo * msginfo;
3201                 l = msglist;
3202
3203                 /* immediately stop if src and dest folders are identical */
3204                 if (l != NULL) {
3205                         msginfo = (MsgInfo *) l->data;
3206                         if (msginfo != NULL && msginfo->folder == dest) {
3207                                 g_relation_destroy(relation);
3208                                 return -1;
3209                         }
3210                 }
3211
3212                 for (; l != NULL ; l = g_slist_next(l)) {
3213                         msginfo = (MsgInfo *) l->data;
3214
3215                         num = folder->klass->copy_msg(folder, dest, msginfo);
3216                         if (num > 0)
3217                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
3218                         else
3219                                 not_moved = g_slist_prepend(not_moved, msginfo);
3220                 }
3221         }
3222
3223         if (remove_source) {
3224                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3225                 FolderItem *item = msginfo->folder;
3226                 /*
3227                  * Remove source messages from their folders if
3228                  * copying was successfull and update folder
3229                  * message counts
3230                  */
3231                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3232                         item->folder->klass->remove_msgs(item->folder,
3233                                                                 msginfo->folder,
3234                                                                 msglist,
3235                                                                 relation);
3236                 }
3237                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3238                         GTuples *tuples;
3239                         msginfo = (MsgInfo *) l->data;
3240                         item = msginfo->folder;
3241
3242                         tuples = g_relation_select(relation, msginfo, 0);
3243                         if (tuples) {
3244                                 if (tuples->len)
3245                                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3246                                 else
3247                                         num = 0;
3248                                 g_tuples_destroy(tuples);
3249                         } else {
3250                                 num = -1;
3251                         }
3252
3253                         if (g_slist_find(not_moved, msginfo))
3254                                 continue;
3255
3256                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3257                                 if (!item->folder->klass->remove_msgs)
3258                                         item->folder->klass->remove_msg(item->folder,
3259                                                                 msginfo->folder,
3260                                                                 msginfo->msgnum);
3261                                 remove_msginfo_from_cache(item, msginfo);
3262                         }
3263                 }
3264         }
3265
3266         /* Read cache for dest folder */
3267         if (!dest->cache) folder_item_read_cache(dest);
3268
3269         /*
3270          * Fetch new MsgInfos for new messages in dest folder,
3271          * add them to the msgcache and update folder message counts
3272          */
3273         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
3274                 folder_item_scan_full(dest, FALSE);
3275                 folderscan = TRUE;
3276         }
3277
3278         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3279         total = g_slist_length(msglist);
3280
3281         if (FOLDER_TYPE(dest->folder) == F_IMAP && total > 1) {
3282                 folder_item_scan_full(dest, FALSE);
3283                 folderscan = TRUE;
3284         }
3285         folder_item_set_batch(dest, TRUE);
3286         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3287                 MsgInfo *msginfo = (MsgInfo *) l->data;
3288                 GTuples *tuples;
3289
3290                 tuples = g_relation_select(relation, msginfo, 0);
3291                 if (tuples->len > 0) {
3292                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3293                         g_tuples_destroy(tuples);
3294                 } else {
3295                         num = 0;
3296                         if (tuples)
3297                                 g_tuples_destroy(tuples);
3298                 }
3299                 statusbar_progress_all(curmsg++,total, 100);
3300                 if (curmsg % 100 == 0)
3301                         GTK_EVENTS_FLUSH();
3302
3303                 if (num >= 0) {
3304                         MsgInfo *newmsginfo = NULL;
3305
3306                         if (!folderscan && num > 0) {
3307                                 newmsginfo = get_msginfo(dest, num);
3308                                 if (newmsginfo != NULL) {
3309                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3310                                 }
3311                         }
3312                         if (newmsginfo == NULL) {
3313                                 if (!folderscan) {
3314                                         folder_item_scan_full(dest, FALSE);
3315                                         folderscan = TRUE;
3316                                 }
3317                                 if (msginfo->msgid != NULL) {
3318                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3319                                         if (newmsginfo != NULL) {
3320                                                 copy_msginfo_flags(msginfo, newmsginfo);
3321                                                 num = newmsginfo->msgnum;
3322                                         }
3323                                 }
3324                         }
3325
3326                         if (msginfo->planned_download
3327                             == POP3_PARTIAL_DLOAD_DELE) {
3328                                 partial_mark_for_delete(newmsginfo);
3329                         }
3330                         if (msginfo->planned_download
3331                             == POP3_PARTIAL_DLOAD_DLOAD) {
3332                                 partial_mark_for_download(newmsginfo);
3333                         }
3334                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3335                             procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3336                             procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3337                             hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3338                         }
3339                         procmsg_msginfo_free(newmsginfo);
3340
3341
3342                         if (num > lastnum)
3343                                 lastnum = num;
3344                 }
3345         }
3346         folder_item_set_batch(dest, FALSE);
3347         statusbar_progress_all(0,0,0);
3348         statusbar_pop_all();
3349
3350         g_relation_destroy(relation);
3351         if (not_moved != NULL) {
3352                 g_slist_free(not_moved);
3353                 return -1;
3354         } else
3355                 return lastnum;
3356 }
3357
3358 /**
3359  * Move a message to a new folder.
3360  *
3361  * \param dest Destination folder
3362  * \param msginfo The message
3363  */
3364 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3365 {
3366         GSList list;
3367
3368         g_return_val_if_fail(dest != NULL, -1);
3369         g_return_val_if_fail(msginfo != NULL, -1);
3370
3371         list.data = msginfo;
3372         list.next = NULL;
3373
3374         return do_copy_msgs(dest, &list, TRUE);
3375 }
3376
3377 /**
3378  * Move a list of messages to a new folder.
3379  *
3380  * \param dest Destination folder
3381  * \param msglist List of messages
3382  */
3383 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3384 {
3385         gint result = -1;
3386         g_return_val_if_fail(dest != NULL, -1);
3387         g_return_val_if_fail(msglist != NULL, -1);
3388         inc_lock();
3389         result = do_copy_msgs(dest, msglist, TRUE);
3390         inc_unlock();
3391         return result;
3392 }
3393
3394 /**
3395  * Copy a message to a new folder.
3396  *
3397  * \param dest Destination folder
3398  * \param msginfo The message
3399  */
3400 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3401 {
3402         GSList list;
3403
3404         g_return_val_if_fail(dest != NULL, -1);
3405         g_return_val_if_fail(msginfo != NULL, -1);
3406
3407         list.data = msginfo;
3408         list.next = NULL;
3409
3410         return do_copy_msgs(dest, &list, FALSE);
3411 }
3412
3413 /**
3414  * Copy a list of messages to a new folder.
3415  *
3416  * \param dest Destination folder
3417  * \param msglist List of messages
3418  */
3419 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3420 {
3421         gint result;
3422         g_return_val_if_fail(dest != NULL, -1);
3423         g_return_val_if_fail(msglist != NULL, -1);
3424
3425         inc_lock();
3426         result = do_copy_msgs(dest, msglist, FALSE);
3427         inc_unlock();
3428
3429         return result;
3430 }
3431
3432 gint folder_item_remove_msg(FolderItem *item, gint num)
3433 {
3434         Folder *folder;
3435         gint ret;
3436         MsgInfo *msginfo;
3437
3438         g_return_val_if_fail(item != NULL, -1);
3439         folder = item->folder;
3440         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3441         if (item->no_select)
3442                 return -1;
3443
3444         if (!item->cache) folder_item_read_cache(item);
3445
3446         msginfo = msgcache_get_msg(item->cache, num);
3447         if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3448                 procmsg_msginfo_free(msginfo);
3449                 return -1;
3450         }
3451         ret = folder->klass->remove_msg(folder, item, num);
3452
3453         if (msginfo != NULL) {
3454                 remove_msginfo_from_cache(item, msginfo);
3455                 procmsg_msginfo_free(msginfo);
3456         }
3457
3458         return ret;
3459 }
3460
3461 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3462 {
3463         Folder *folder;
3464         gint ret = 0;
3465
3466         g_return_val_if_fail(item != NULL, -1);
3467         folder = item->folder;
3468         g_return_val_if_fail(folder != NULL, -1);
3469         if (item->no_select)
3470                 return -1;
3471         inc_lock();
3472         if (!item->cache) folder_item_read_cache(item);
3473
3474         folder_item_update_freeze();
3475         if (item->folder->klass->remove_msgs) {
3476                 ret = item->folder->klass->remove_msgs(item->folder,
3477                                                         item,
3478                                                         msglist,
3479                                                         NULL);
3480         }
3481         while (ret == 0 && msglist != NULL) {
3482                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
3483                 if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3484                         msglist = msglist->next;
3485                         continue;
3486                 }
3487                 if (!item->folder->klass->remove_msgs)
3488                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3489                 if (ret != 0) break;
3490                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3491                 msglist = msglist->next;
3492         }
3493         folder_item_scan_full(item, FALSE);
3494         folder_item_update_thaw();
3495         inc_unlock();
3496         return ret;
3497 }
3498
3499 gint folder_item_remove_all_msg(FolderItem *item)
3500 {
3501         Folder *folder;
3502         gint result;
3503
3504         g_return_val_if_fail(item != NULL, -1);
3505         if (item->no_select)
3506                 return -1;
3507
3508         folder = item->folder;
3509
3510         inc_lock();
3511         if (folder->klass->remove_all_msg != NULL) {
3512                 result = folder->klass->remove_all_msg(folder, item);
3513
3514                 if (result == 0) {
3515                         folder_item_free_cache(item, TRUE);
3516                         item->cache = msgcache_new();
3517                 }
3518         } else {
3519                 MsgInfoList *msglist;
3520
3521                 msglist = folder_item_get_msg_list(item);
3522                 result = folder_item_remove_msgs(item, msglist);
3523                 procmsg_msg_list_free(msglist);
3524         }
3525
3526         if (result == 0) {
3527                 item->new_msgs = 0;
3528                 item->unread_msgs = 0;
3529                 item->unreadmarked_msgs = 0;
3530                 item->marked_msgs = 0;
3531                 item->total_msgs = 0;
3532                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3533         }
3534
3535         inc_unlock();
3536         return result;
3537 }
3538
3539 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3540 {
3541         g_return_if_fail(item != NULL);
3542         g_return_if_fail(msginfo != NULL);
3543         if (item->no_select)
3544                 return;
3545
3546         if (item->folder->klass->change_flags != NULL && item->scanning != ITEM_SCANNING_WITH_FLAGS) {
3547                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3548         } else {
3549                 msginfo->flags.perm_flags = newflags;
3550         }
3551 }
3552
3553 void folder_item_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_set, GSList *tags_unset)
3554 {
3555         Folder *folder = NULL;
3556
3557         if (!msginfo)
3558                 return;
3559         if (!item)
3560                 return;
3561         if (!tags_set && !tags_unset)
3562                 return;
3563
3564         folder = item->folder;
3565         if (!folder)
3566                 return;
3567
3568         if (folder->klass->commit_tags == NULL)
3569                 return;
3570
3571         folder->klass->commit_tags(item, msginfo, tags_set, tags_unset);
3572 }
3573
3574 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3575 {
3576         Folder *folder;
3577
3578         g_return_val_if_fail(item != NULL, FALSE);
3579         if (item->no_select)
3580                 return FALSE;
3581
3582         folder = item->folder;
3583
3584         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3585
3586         return folder->klass->is_msg_changed(folder, item, msginfo);
3587 }
3588
3589 void folder_item_discard_cache(FolderItem *item)
3590 {
3591         gchar *dir;
3592         gchar *cache;
3593
3594         if (!item)
3595                 return;
3596
3597         if (item->cache) {
3598                 msgcache_destroy(item->cache);
3599                 item->cache = NULL;
3600         }
3601         dir = folder_item_get_path(item);
3602         if (is_dir_exist(dir))
3603                 remove_all_numbered_files(dir);
3604         g_free(dir);
3605
3606         cache = folder_item_get_cache_file(item);
3607         if (is_file_exist(cache))
3608                 g_unlink(cache);
3609         g_free(cache);
3610
3611 }
3612
3613 static gchar *folder_item_get_cache_file(FolderItem *item)
3614 {
3615         gchar *path;
3616         gchar *file;
3617         gchar *old_file;
3618
3619         g_return_val_if_fail(item != NULL, NULL);
3620         g_return_val_if_fail(item->path != NULL, NULL);
3621
3622         path = folder_item_get_path(item);
3623         g_return_val_if_fail(path != NULL, NULL);
3624         if (!is_dir_exist(path))
3625                 make_dir_hier(path);
3626         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3627         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
3628
3629         if (!is_file_exist(file) && is_file_exist(old_file))
3630                 move_file(old_file, file, FALSE);
3631         g_free(old_file);
3632         g_free(path);
3633
3634         return file;
3635 }
3636
3637 static gchar *folder_item_get_mark_file(FolderItem *item)
3638 {
3639         gchar *path;
3640         gchar *file;
3641         gchar *old_file;
3642
3643         g_return_val_if_fail(item != NULL, NULL);
3644         g_return_val_if_fail(item->path != NULL, NULL);
3645
3646         path = folder_item_get_path(item);
3647         g_return_val_if_fail(path != NULL, NULL);
3648         if (!is_dir_exist(path))
3649                 make_dir_hier(path);
3650         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3651         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
3652
3653         if (!is_file_exist(file) && is_file_exist(old_file))
3654                 move_file(old_file, file, FALSE);
3655         g_free(old_file);
3656         g_free(path);
3657
3658         return file;
3659 }
3660
3661 static gchar *folder_item_get_tags_file(FolderItem *item)
3662 {
3663         gchar *path;
3664         gchar *identifier;
3665         gchar *file;
3666
3667         /* we save tags files in rc_dir, because tagsrc is there too,
3668          * and storing tags directly in the mailboxes would give strange
3669          * result when using another Claws mailbox from another install
3670          * with different tags. */
3671
3672         g_return_val_if_fail(item != NULL, NULL);
3673
3674         identifier = folder_item_get_identifier(item);
3675         g_return_val_if_fail(identifier != NULL, NULL);
3676
3677 #ifdef G_OS_WIN32
3678         while (strchr(identifier, '/'))
3679                 *strchr(identifier, '/') = '\\';
3680 #endif
3681
3682         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3683                            "tagsdb", G_DIR_SEPARATOR_S,
3684                            identifier, NULL);
3685
3686         g_free(identifier);
3687
3688         if (!is_dir_exist(path))
3689                 make_dir_hier(path);
3690
3691         file = g_strconcat(path, G_DIR_SEPARATOR_S, TAGS_FILE, NULL);
3692
3693         g_free(path);
3694
3695         return file;
3696 }
3697
3698 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3699 {
3700         XMLNode *xmlnode = (XMLNode *) nodedata;
3701         Folder *folder = (Folder *) data;
3702         FolderItem *item;
3703
3704         g_return_val_if_fail(xmlnode != NULL, NULL);
3705         g_return_val_if_fail(folder != NULL, NULL);
3706
3707         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
3708                 g_warning("tag name != \"folderitem\"\n");
3709                 return NULL;
3710         }
3711
3712         item = folder_item_new(folder, "", "");
3713         if (folder->klass->item_set_xml != NULL)
3714                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
3715         else
3716                 folder_item_set_xml(folder, item, xmlnode->tag);
3717
3718         item->folder = folder;
3719
3720         switch (item->stype) {
3721         case F_INBOX:  folder->inbox  = item; break;
3722         case F_OUTBOX: folder->outbox = item; break;
3723         case F_DRAFT:  folder->draft  = item; break;
3724         case F_QUEUE:  folder->queue  = item; break;
3725         case F_TRASH:  folder->trash  = item; break;
3726         default:       break;
3727         }
3728         folder_item_prefs_read_config(item);
3729
3730         return item;
3731 }
3732
3733 static gboolean folder_item_set_node(GNode *node, gpointer data)
3734 {
3735         FolderItem *item = (FolderItem *) node->data;
3736         item->node = node;
3737
3738         return FALSE;
3739 }
3740
3741 static Folder *folder_get_from_xml(GNode *node)
3742 {
3743         Folder *folder;
3744         XMLNode *xmlnode;
3745         GList *list;
3746         FolderClass *klass = NULL;
3747         GNode *cur;
3748
3749         g_return_val_if_fail(node->data != NULL, NULL);
3750
3751         xmlnode = node->data;
3752         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
3753                 g_warning("tag name != \"folder\"\n");
3754                 return NULL;
3755         }
3756         list = xmlnode->tag->attr;
3757         for (; list != NULL; list = list->next) {
3758                 XMLAttr *attr = list->data;
3759
3760                 if (!attr || !attr->name || !attr->value) continue;
3761                 if (!strcmp(attr->name, "type"))
3762                         klass = folder_get_class_from_string(attr->value);
3763         }
3764         if (klass == NULL)
3765                 return NULL;
3766
3767         folder = folder_new(klass, "", "");
3768         g_return_val_if_fail(folder != NULL, NULL);
3769
3770         if (klass->set_xml)
3771                 klass->set_xml(folder, xmlnode->tag);
3772         else
3773                 folder_set_xml(folder, xmlnode->tag);
3774
3775         cur = node->children;
3776         while (cur != NULL) {
3777                 GNode *itemnode;
3778
3779                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
3780                 g_node_append(folder->node, itemnode);
3781                 cur = cur->next;
3782         }
3783         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
3784
3785         return folder;
3786 }
3787
3788 static gchar *folder_get_list_path(void)
3789 {
3790         static gchar *filename = NULL;
3791
3792         if (!filename)
3793                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3794                                         FOLDER_LIST, NULL);
3795
3796         return filename;
3797 }
3798
3799 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
3800 {
3801         FolderItem *item = (FolderItem *) nodedata;
3802         XMLTag *tag;
3803
3804         g_return_val_if_fail(item != NULL, NULL);
3805
3806         if (item->folder->klass->item_get_xml != NULL)
3807                 tag = item->folder->klass->item_get_xml(item->folder, item);
3808         else
3809                 tag = folder_item_get_xml(item->folder, item);
3810
3811         return xml_node_new(tag, NULL);
3812 }
3813
3814 static GNode *folder_get_xml_node(Folder *folder)
3815 {
3816         GNode *node;
3817         XMLNode *xmlnode;
3818         XMLTag *tag;
3819
3820         g_return_val_if_fail(folder != NULL, NULL);
3821
3822         if (folder->klass->get_xml != NULL)
3823                 tag = folder->klass->get_xml(folder);
3824         else
3825                 tag = folder_get_xml(folder);
3826
3827         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
3828
3829         xmlnode = xml_node_new(tag, NULL);
3830
3831         node = g_node_new(xmlnode);
3832
3833         g_return_val_if_fail (folder->node != NULL, NULL);
3834
3835         if (folder->node->children) {
3836                 GNode *cur;
3837
3838                 cur = folder->node->children;
3839                 while (cur) {
3840                         GNode *xmlnode;
3841
3842                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
3843                         g_node_append(node, xmlnode);
3844                         cur = cur->next;
3845                 }
3846         }
3847
3848         return node;
3849 }
3850
3851 static void folder_update_op_count_rec(GNode *node)
3852 {
3853         FolderItem *fitem = FOLDER_ITEM(node->data);
3854
3855         if (g_node_depth(node) > 0) {
3856                 if (fitem->op_count > 0) {
3857                         fitem->op_count = 0;
3858                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
3859                 }
3860                 if (node->children) {
3861                         GNode *child;
3862
3863                         child = node->children;
3864                         while (child) {
3865                                 GNode *cur;
3866
3867                                 cur = child;
3868                                 child = cur->next;
3869                                 folder_update_op_count_rec(cur);
3870                         }
3871                 }
3872         }
3873 }
3874
3875 void folder_update_op_count(void)
3876 {
3877         GList *cur;
3878         Folder *folder;
3879
3880         for (cur = folder_list; cur != NULL; cur = cur->next) {
3881                 folder = cur->data;
3882                 folder_update_op_count_rec(folder->node);
3883         }
3884 }
3885
3886 typedef struct _type_str {
3887         gchar * str;
3888         gint type;
3889 } type_str;
3890
3891
3892 /*
3893 static gchar * folder_item_get_tree_identifier(FolderItem * item)
3894 {
3895         if (item->parent != NULL) {
3896                 gchar * path;
3897                 gchar * id;
3898
3899                 path = folder_item_get_tree_identifier(item->parent);
3900                 if (path == NULL)
3901                         return NULL;
3902
3903                 id = g_strconcat(path, "/", item->name, NULL);
3904                 g_free(path);
3905
3906                 return id;
3907         }
3908         else {
3909                 return g_strconcat("/", item->name, NULL);
3910         }
3911 }
3912 */
3913
3914 /* CLAWS: temporary local folder for filtering */
3915 #define TEMP_FOLDER "TEMP_FOLDER"
3916 #define PROCESSING_FOLDER_ITEM "processing"
3917
3918 static FolderItem *processing_folder_item;
3919
3920 static void folder_create_processing_folder(void)
3921 {
3922         Folder *processing_folder;
3923         gchar      *tmpname;
3924
3925         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
3926                 gchar *tmppath;
3927
3928                 tmppath =
3929                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3930                                 "tempfolder", NULL);
3931                 processing_folder =
3932                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
3933                 g_free(tmppath);
3934         }
3935         g_assert(processing_folder != NULL);
3936
3937         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
3938         /* FIXME: [W32] The code below does not correctly merge
3939            relative filenames; there should be a function to handle
3940            this.  */
3941         if (!is_relative_filename(LOCAL_FOLDER(processing_folder)->rootpath))
3942                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
3943                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3944                                       NULL);
3945         else
3946                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
3947                                       LOCAL_FOLDER(processing_folder)->rootpath,
3948                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3949                                       NULL);
3950
3951         if (!is_dir_exist(tmpname)) {
3952                 debug_print("*TMP* creating %s\n", tmpname);
3953                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
3954                                                                                  processing_folder->node->data,
3955                                                                                  PROCESSING_FOLDER_ITEM);
3956         } else {
3957                 debug_print("*TMP* already created\n");
3958                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
3959                 g_assert(processing_folder_item);
3960                 folder_item_append(processing_folder->node->data, processing_folder_item);
3961         }
3962         g_assert(processing_folder_item != NULL);
3963         g_free(tmpname);
3964 }
3965
3966 FolderItem *folder_get_default_processing(void)
3967 {
3968         if (!processing_folder_item) {
3969                 folder_create_processing_folder();
3970         }
3971         return processing_folder_item;
3972 }
3973
3974 /* folder_persist_prefs_new() - return hash table with persistent
3975  * settings (and folder name as key).
3976  * (note that in claws other options are in the folder_item_prefs_RC
3977  * file, so those don't need to be included in PersistPref yet)
3978  */
3979 static GHashTable *folder_persist_prefs_new(Folder *folder)
3980 {
3981         GHashTable *pptable;
3982
3983         g_return_val_if_fail(folder, NULL);
3984         pptable = g_hash_table_new(g_str_hash, g_str_equal);
3985         folder_get_persist_prefs_recursive(folder->node, pptable);
3986         return pptable;
3987 }
3988
3989 static void folder_persist_prefs_free(GHashTable *pptable)
3990 {
3991         g_return_if_fail(pptable);
3992         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
3993         g_hash_table_destroy(pptable);
3994 }
3995
3996 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
3997 {
3998         if (pptable == NULL || name == NULL) return NULL;
3999         return g_hash_table_lookup(pptable, name);
4000 }
4001
4002 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
4003 {
4004         const PersistPrefs *pp;
4005         gchar *id = folder_item_get_identifier(item);
4006
4007         pp = folder_get_persist_prefs(pptable, id);
4008         g_free(id);
4009
4010         if (!pp) return;
4011
4012         /* CLAWS: since not all folder properties have been migrated to
4013          * folderlist.xml, we need to call the old stuff first before
4014          * setting things that apply both to Main and Claws. */
4015         folder_item_prefs_read_config(item);
4016
4017         item->collapsed = pp->collapsed;
4018         item->thread_collapsed = pp->thread_collapsed;
4019         item->threaded  = pp->threaded;
4020         item->ret_rcpt  = pp->ret_rcpt;
4021         item->hide_read_msgs = pp->hide_read_msgs;
4022         item->sort_key  = pp->sort_key;
4023         item->sort_type = pp->sort_type;
4024 }
4025
4026 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
4027 {
4028         FolderItem *item = FOLDER_ITEM(node->data);
4029         PersistPrefs *pp;
4030         GNode *child, *cur;
4031         gchar *id;
4032
4033         g_return_if_fail(node != NULL);
4034         g_return_if_fail(item != NULL);
4035
4036         /* NOTE: item->path == NULL means top level folder; not interesting
4037          * to store preferences of that one.  */
4038         if (item->path) {
4039                 id = folder_item_get_identifier(item);
4040                 pp = g_new0(PersistPrefs, 1);
4041                 g_return_if_fail(pp != NULL);
4042                 pp->collapsed = item->collapsed;
4043                 pp->thread_collapsed = item->thread_collapsed;
4044                 pp->threaded  = item->threaded;
4045                 pp->ret_rcpt  = item->ret_rcpt;
4046                 pp->hide_read_msgs = item->hide_read_msgs;
4047                 pp->sort_key  = item->sort_key;
4048                 pp->sort_type = item->sort_type;
4049                 g_hash_table_insert(pptable, id, pp);
4050         }
4051
4052         if (node->children) {
4053                 child = node->children;
4054                 while (child) {
4055                         cur = child;
4056                         child = cur->next;
4057                         folder_get_persist_prefs_recursive(cur, pptable);
4058                 }
4059         }
4060 }
4061
4062 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
4063 {
4064         g_free(key);
4065         g_free(val);
4066         return TRUE;
4067 }
4068
4069 void folder_item_apply_processing(FolderItem *item)
4070 {
4071         GSList *processing_list;
4072         GSList *mlist, *cur;
4073         guint total = 0, curmsg = 0;
4074         gint last_apply_per_account;
4075
4076         g_return_if_fail(item != NULL);
4077
4078         if (item->no_select)
4079                return;
4080
4081         processing_list = item->prefs->processing;
4082
4083         if (!pre_global_processing && !processing_list
4084         &&  !post_global_processing)
4085                 return;
4086
4087         debug_print("processing %s\n", item->name);
4088         folder_item_update_freeze();
4089
4090         inc_lock();
4091
4092         mlist = folder_item_get_msg_list(item);
4093         total = g_slist_length(mlist);
4094         statusbar_print_all(_("Processing messages..."));
4095
4096         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
4097         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
4098
4099         folder_item_set_batch(item, TRUE);
4100         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4101                 MsgInfo * msginfo;
4102
4103                 msginfo = (MsgInfo *) cur->data;
4104
4105                 /* reset parameters that can be modified by processing */
4106                 msginfo->hidden = 0;
4107                 msginfo->score = 0;
4108
4109                 statusbar_progress_all(curmsg++,total, 10);
4110
4111                 /* apply pre global rules */
4112                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
4113                                 FILTERING_PRE_PROCESSING, NULL);
4114
4115                 /* apply rules of the folder */
4116                 filter_message_by_msginfo(processing_list, msginfo, NULL,
4117                                 FILTERING_FOLDER_PROCESSING, item->name);
4118
4119                 /* apply post global rules */
4120                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
4121                                 FILTERING_POST_PROCESSING, NULL);
4122                 if (curmsg % 1000 == 0)
4123                         GTK_EVENTS_FLUSH();
4124         }
4125         folder_item_set_batch(item, FALSE);
4126
4127         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
4128
4129         if (pre_global_processing || processing_list
4130             || post_global_processing)
4131                 filtering_move_and_copy_msgs(mlist);
4132         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4133                 MsgInfo * msginfo = (MsgInfo *)cur->data;
4134                 procmsg_msginfo_free(msginfo);
4135         }
4136         g_slist_free(mlist);
4137
4138         statusbar_progress_all(0,0,0);
4139         statusbar_pop_all();
4140
4141         inc_unlock();
4142
4143         folder_item_update_thaw();
4144 }
4145
4146 /*
4147  *  functions for handling FolderItem content changes
4148  */
4149 static gint folder_item_update_freeze_cnt = 0;
4150
4151 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
4152 {
4153         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
4154                 FolderItemUpdateData source;
4155
4156                 source.item = item;
4157                 source.update_flags = update_flags;
4158                 source.msg = msg;
4159                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4160         } else {
4161                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
4162         }
4163 }
4164
4165 /**
4166  * Notify the folder system about changes to a folder. If the
4167  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
4168  * be invoked, otherwise the changes will be remebered until
4169  * the folder system is thawed.
4170  *
4171  * \param item The FolderItem that was changed
4172  * \param update_flags Type of changed that was made
4173  */
4174 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
4175 {
4176         folder_item_update_with_msg(item, update_flags, NULL);
4177 }
4178
4179 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
4180 {
4181         GNode *node = item->folder->node;
4182
4183         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
4184         node = node->children;
4185
4186         folder_item_update(item, update_flags);
4187         while (node != NULL) {
4188                 if (node && node->data) {
4189                         FolderItem *next_item = (FolderItem*) node->data;
4190
4191                         folder_item_update(next_item, update_flags);
4192                 }
4193                 node = node->next;
4194         }
4195 }
4196
4197 void folder_item_update_freeze(void)
4198 {
4199         folder_item_update_freeze_cnt++;
4200 }
4201
4202 static void folder_item_update_func(FolderItem *item, gpointer data)
4203 {
4204         FolderItemUpdateData source;
4205
4206         if (item->update_flags) {
4207                 source.item = item;
4208                 source.update_flags = item->update_flags;
4209                 source.msg = NULL;
4210                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4211                 item->update_flags = 0;
4212         }
4213 }
4214
4215 void folder_item_update_thaw(void)
4216 {
4217         if (folder_item_update_freeze_cnt > 0)
4218                 folder_item_update_freeze_cnt--;
4219         if (folder_item_update_freeze_cnt == 0) {
4220                 /* Update all folders */
4221                 folder_func_to_all_folders(folder_item_update_func, NULL);
4222         }
4223 }
4224
4225 void folder_item_synchronise(FolderItem *item)
4226 {
4227         if (!item)
4228                 return;
4229         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4230                 statuswindow_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4231                 item->folder->klass->synchronise(item,
4232                         item->prefs->offlinesync_days);
4233                 if (item->prefs->offlinesync_days > 0 &&
4234                     item->prefs->remove_old_bodies)
4235                         folder_item_clean_local_files(item, item->prefs->offlinesync_days);
4236                 statuswindow_pop_all();
4237         }
4238 }
4239
4240 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4241 {
4242         Folder *folder = (Folder *)data;
4243         if (folder == NULL || item->folder == folder) {
4244                 folder_item_synchronise(item);
4245         }
4246 }
4247
4248 void folder_synchronise(Folder *folder)
4249 {
4250         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4251 }
4252
4253 typedef struct _WantSyncData {
4254         Folder *folder;
4255         gboolean want_sync;
4256 } WantSyncData;
4257
4258 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4259 {
4260         WantSyncData *want_sync_data = (WantSyncData *)data;
4261
4262         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4263                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4264                         want_sync_data->want_sync |= TRUE;
4265         }
4266 }
4267
4268 gboolean folder_want_synchronise(Folder *folder)
4269 {
4270         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4271         gboolean result;
4272         want_sync_data->folder = folder;
4273         want_sync_data->want_sync = FALSE;
4274
4275         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4276         result = want_sync_data->want_sync;
4277         g_free(want_sync_data);
4278         if (result > 0)
4279                 debug_print("Folder %s wants sync\n", folder->name);
4280         return result;
4281 }
4282
4283 void folder_item_set_batch (FolderItem *item, gboolean batch)
4284 {
4285         if (!item || !item->folder)
4286                 return;
4287         if (item->folder->klass->set_batch) {
4288                 item->folder->klass->set_batch(item->folder, item, batch);
4289         }
4290 }
4291
4292 gboolean folder_has_parent_of_type(FolderItem *item,
4293                                           SpecialFolderItemType type)
4294 {
4295         FolderItem *cur = item;
4296
4297         /* if we already know it, make it short */
4298         if (item->parent_stype != -1) {
4299                 return (item->parent_stype == type);
4300         }
4301
4302         /* if we don't, find the type from the first possible parent,
4303          * and set our parent type to be faster next time */
4304         while (cur) {
4305                 if (cur->stype == type || cur->parent_stype == type) {
4306                         item->parent_stype = type;
4307                         return TRUE;
4308                 }
4309                 cur = folder_item_parent(cur);
4310         }
4311
4312         /* if we didn't match what was asked, we didn't return. If our
4313          * parent type is unknown, we may as well find it now to be faster
4314          * later. */
4315         if (item->parent_stype == -1) {
4316                 cur = item;
4317                 while (cur) {
4318                         /* here's an exception: Inbox subfolders are normal. */
4319                         if (item->parent_stype == -1 && cur->stype == F_INBOX
4320                         && item != cur) {
4321                                 item->parent_stype = F_NORMAL;
4322                                 break;
4323                         }
4324                         /* ah, we know this parent's parent's type, we may as
4325                          * well copy it instead of going up the full way */
4326                         if (cur->parent_stype != -1) {
4327                                 item->parent_stype = cur->parent_stype;
4328                                 break;
4329                         }
4330                         /* we found a parent that has a special type. That's
4331                          * our parent type. */
4332                         if (cur->stype != F_NORMAL) {
4333                                 cur->parent_stype = cur->stype;
4334                                 item->parent_stype = cur->stype;
4335                                 break;
4336                         }
4337                         /* if we didn't find anything, go up once more */
4338                         cur = folder_item_parent(cur);
4339                 }
4340                 /* as we still didn't find anything, our parents must all be
4341                  * normal. */
4342                 if (item->parent_stype == -1) {
4343                         item->parent_stype = F_NORMAL;
4344                 }
4345         }
4346         return FALSE;
4347 }
4348
4349 gboolean folder_subscribe (const gchar *uri)
4350 {
4351         GList *cur;
4352         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4353                 Folder *folder = (Folder *) cur->data;
4354
4355                 if (folder->klass->subscribe
4356                 &&  folder->klass->subscribe(folder, uri)) {
4357                         return TRUE;
4358                 }
4359         }
4360         return FALSE;
4361
4362 }
4363
4364 gboolean folder_get_sort_type           (Folder         *folder,
4365                                          FolderSortKey  *sort_key,
4366                                          FolderSortType *sort_type)
4367 {
4368         if (!folder || !sort_key || !sort_type)
4369                 return FALSE;
4370         if (folder->klass->get_sort_type == NULL)
4371                 return FALSE;
4372         folder->klass->get_sort_type(folder, sort_key, sort_type);
4373         return TRUE;
4374 }