src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2008 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33 #include <stdlib.h>
  34 #ifdef WIN32
  35 #include <w32lib.h>
  36 #endif
  37
  38 #include "folder.h"
  39 #include "session.h"
  40 #include "inc.h"
  41 #include "imap.h"
  42 #include "news.h"
  43 #include "mh.h"
  44 #include "utils.h"
  45 #include "xml.h"
  46 #include "codeconv.h"
  47 #include "prefs_gtk.h"
  48 #include "account.h"
  49 #include "filtering.h"
  50 #include "procheader.h"
  51 #include "hooks.h"
  52 #include "log.h"
  53 #include "folder_item_prefs.h"
  54 #include "remotefolder.h"
  55 #include "partial_download.h"
  56 #include "statusbar.h"
  57 #include "gtkutils.h"
  58 #include "timing.h"
  59 #include "compose.h"
  60 #include "main.h"
  61
  62 /* Dependecies to be removed ?! */
  63 #include "prefs_common.h"
  64 #include "prefs_account.h"
  65
  66 /* Define possible missing constants for Windows. */
  67 #ifdef G_OS_WIN32
  68 # ifndef S_IRGRP
  69 # define S_IRGRP 0
  70 # define S_IWGRP 0
  71 # endif
  72 # ifndef S_IROTH
  73 # define S_IROTH 0
  74 # define S_IWOTH 0
  75 # endif
  76 #endif
  77
  78 static GList *folder_list = NULL;
  79 static GSList *class_list = NULL;
  80 static GSList *folder_unloaded_list = NULL;
  81
  82 void folder_init                (Folder         *folder,
  83                                  const gchar    *name);
  84
  85 static gchar *folder_item_get_cache_file        (FolderItem     *item);
  86 static gchar *folder_item_get_mark_file (FolderItem     *item);
  87 static gchar *folder_item_get_tags_file (FolderItem     *item);
  88 static gchar *folder_get_list_path      (void);
  89 static GNode *folder_get_xml_node       (Folder         *folder);
  90 static Folder *folder_get_from_xml      (GNode          *node);
  91 static void folder_update_op_count_rec  (GNode          *node);
  92
  93
  94 static void folder_get_persist_prefs_recursive
  95                                         (GNode *node, GHashTable *pptable);
  96 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  97 static void folder_item_read_cache              (FolderItem *item);
  98 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  99 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
 100                                          MsgInfo *msg);
 101 static GHashTable *folder_persist_prefs_new     (Folder *folder);
 102 static void folder_persist_prefs_free           (GHashTable *pptable);
 103 static void folder_item_restore_persist_prefs   (FolderItem *item, GHashTable *pptable);
 104
 105 void folder_system_init(void)
 106 {
 107         folder_register_class(mh_get_class());
 108         folder_register_class(imap_get_class());
 109         folder_register_class(news_get_class());
 110 }
 111
 112 static GSList *folder_get_class_list(void)
 113 {
 114         return class_list;
 115 }
 116
 117 void folder_register_class(FolderClass *klass)
 118 {
 119         GSList *xmllist, *cur;
 120
 121         debug_print("registering folder class %s\n", klass->idstr);
 122
 123         class_list = g_slist_append(class_list, klass);
 124
 125         xmllist = g_slist_copy(folder_unloaded_list);
 126         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
 127                 GNode *node = (GNode *) cur->data;
 128                 XMLNode *xmlnode = (XMLNode *) node->data;
 129                 GList *cur = xmlnode->tag->attr;
 130
 131                 for (; cur != NULL; cur = g_list_next(cur)) {
 132                         XMLAttr *attr = (XMLAttr *) cur->data;
 133
 134                         if (!attr || !attr->name || !attr->value) continue;
 135                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
 136                                 Folder *folder;
 137
 138                                 folder = folder_get_from_xml(node);
 139                                 if (folder) {
 140                                         folder_add(folder);
 141                                         folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
 142                                 }
 143                                 cur = NULL;
 144                                 continue;
 145                         }
 146                 }
 147         }
 148         g_slist_free(xmllist);
 149 }
 150
 151 void folder_unregister_class(FolderClass *klass)
 152 {
 153         GList *folderlist, *cur;
 154
 155         debug_print("unregistering folder class %s\n", klass->idstr);
 156
 157         class_list = g_slist_remove(class_list, klass);
 158
 159         folderlist = g_list_copy(folder_get_list());
 160         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 161                 Folder *folder = (Folder *) cur->data;
 162
 163                 if (folder->klass == klass) {
 164                         GNode *xmlnode = folder_get_xml_node(folder);
 165                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
 166                         folder_destroy(folder);
 167                 }
 168         }
 169         g_list_free(folderlist);
 170 }
 171
 172 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 173 {
 174         Folder *folder = NULL;
 175         FolderItem *item;
 176
 177         g_return_val_if_fail(klass != NULL, NULL);
 178
 179         name = name ? name : path;
 180         folder = klass->new_folder(name, path);
 181
 182         /* Create root folder item */
 183         item = folder_item_new(folder, name, NULL);
 184         if (item == NULL) {
 185                 return NULL;
 186         }
 187         item->folder = folder;
 188         folder->node = item->node = g_node_new(item);
 189         folder->data = NULL;
 190
 191         return folder;
 192 }
 193
 194 void folder_init(Folder *folder, const gchar *name)
 195 {
 196         g_return_if_fail(folder != NULL);
 197
 198         folder_set_name(folder, name);
 199
 200         /* Init folder data */
 201         folder->account = NULL;
 202         folder->sort = 0;
 203         folder->inbox = NULL;
 204         folder->outbox = NULL;
 205         folder->draft = NULL;
 206         folder->queue = NULL;
 207         folder->trash = NULL;
 208 }
 209
 210 static void reset_parent_type(FolderItem *item, gpointer data) {
 211         item->parent_stype = -1;
 212 }
 213
 214 void folder_item_change_type(FolderItem *item, SpecialFolderItemType newtype)
 215 {
 216         Folder *folder = NULL;
 217         FolderUpdateData hookdata;
 218
 219         if (item == NULL)
 220                 return;
 221
 222         folder = item->folder;
 223         /* unset previous root of newtype */
 224         switch(newtype) {
 225         case F_INBOX:
 226                 folder_item_change_type(folder->inbox, F_NORMAL);
 227                 folder->inbox = item;
 228                 break;
 229         case F_OUTBOX:
 230                 folder_item_change_type(folder->outbox, F_NORMAL);
 231                 folder->outbox = item;
 232                 break;
 233         case F_QUEUE:
 234                 folder_item_change_type(folder->queue, F_NORMAL);
 235                 folder->queue = item;
 236                 break;
 237         case F_DRAFT:
 238                 folder_item_change_type(folder->draft, F_NORMAL);
 239                 folder->draft = item;
 240                 break;
 241         case F_TRASH:
 242                 folder_item_change_type(folder->trash, F_NORMAL);
 243                 folder->trash = item;
 244                 break;
 245         case F_NORMAL:
 246         default:
 247                 break;
 248         }
 249         /* set new type for current folder and sons */
 250         item->stype = newtype;
 251         folder_func_to_all_folders(reset_parent_type, NULL);
 252
 253         hookdata.folder = folder;
 254         hookdata.update_flags = FOLDER_TREE_CHANGED;
 255         hookdata.item = NULL;
 256         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 257 }
 258
 259 void folder_destroy(Folder *folder)
 260 {
 261         g_return_if_fail(folder != NULL);
 262         g_return_if_fail(folder->klass->destroy_folder != NULL);
 263
 264         folder_remove(folder);
 265
 266         folder_tree_destroy(folder);
 267
 268         folder->klass->destroy_folder(folder);
 269
 270         g_free(folder->name);
 271         g_free(folder);
 272 }
 273
 274 void folder_set_xml(Folder *folder, XMLTag *tag)
 275 {
 276         GList *cur;
 277         FolderItem *rootitem = NULL;
 278
 279         if ((folder->node != NULL) && (folder->node->data != NULL))
 280                 rootitem = (FolderItem *) folder->node->data;
 281
 282         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 283                 XMLAttr *attr = (XMLAttr *) cur->data;
 284
 285                 if (!attr || !attr->name || !attr->value) continue;
 286                 if (!strcmp(attr->name, "name")) {
 287                         g_free(folder->name);
 288                         folder->name = g_strdup(attr->value);
 289                         if (rootitem != NULL) {
 290                                 g_free(rootitem->name);
 291                                 rootitem->name = g_strdup(attr->value);
 292                         }
 293                 } else if (!strcmp(attr->name, "account_id")) {
 294                         PrefsAccount *account;
 295
 296                         account = account_find_from_id(atoi(attr->value));
 297                         if (!account)
 298                                 g_warning("account_id: %s not found\n", attr->value);
 299                         else {
 300                                 folder->account = account;
 301                                 account->folder = folder;
 302                         }
 303                 } else if (!strcmp(attr->name, "collapsed")) {
 304                         if (rootitem != NULL)
 305                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 306                 } else if (!strcmp(attr->name, "sort")) {
 307                         folder->sort = atoi(attr->value);
 308                 }
 309         }
 310 }
 311
 312 XMLTag *folder_get_xml(Folder *folder)
 313 {
 314         XMLTag *tag;
 315
 316         tag = xml_tag_new("folder");
 317
 318         if (folder->name)
 319                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
 320         if (folder->account)
 321                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
 322         if (folder->node && folder->node->data) {
 323                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 324
 325                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
 326         }
 327         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
 328
 329         return tag;
 330 }
 331
 332 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 333 {
 334         FolderItem *item = NULL;
 335
 336         g_return_val_if_fail(folder != NULL, NULL);
 337
 338         if (folder->klass->item_new) {
 339                 item = folder->klass->item_new(folder);
 340         } else {
 341                 item = g_new0(FolderItem, 1);
 342         }
 343
 344         g_return_val_if_fail(item != NULL, NULL);
 345
 346         item->stype = F_NORMAL;
 347         item->name = g_strdup(name);
 348         item->path = g_strdup(path);
 349         item->mtime = 0;
 350         item->new_msgs = 0;
 351         item->unread_msgs = 0;
 352         item->unreadmarked_msgs = 0;
 353         item->marked_msgs = 0;
 354         item->total_msgs = 0;
 355         item->replied_msgs = 0;
 356         item->forwarded_msgs = 0;
 357         item->locked_msgs = 0;
 358         item->ignored_msgs = 0;
 359         item->watched_msgs = 0;
 360         item->order = 0;
 361         item->last_num = -1;
 362         item->cache = NULL;
 363         item->no_sub = FALSE;
 364         item->no_select = FALSE;
 365         item->collapsed = FALSE;
 366         item->thread_collapsed = FALSE;
 367         item->threaded  = TRUE;
 368         item->ret_rcpt  = FALSE;
 369         item->opened    = FALSE;
 370         item->node = g_node_new(item);
 371         item->folder = NULL;
 372         item->account = NULL;
 373         item->apply_sub = FALSE;
 374         item->mark_queue = NULL;
 375         item->data = NULL;
 376         item->parent_stype = -1;
 377
 378         item->sort_key = SORT_BY_DATE;
 379         item->sort_type = SORT_ASCENDING;
 380
 381         item->prefs = folder_item_prefs_new();
 382
 383         return item;
 384 }
 385
 386 void folder_item_append(FolderItem *parent, FolderItem *item)
 387 {
 388         g_return_if_fail(parent != NULL);
 389         g_return_if_fail(parent->folder != NULL);
 390         g_return_if_fail(parent->node != NULL);
 391         g_return_if_fail(item != NULL);
 392
 393         item->folder = parent->folder;
 394         g_node_append(parent->node, item->node);
 395 }
 396
 397 void folder_item_remove(FolderItem *item)
 398 {
 399         GNode *node, *start_node;
 400         FolderUpdateData hookdata;
 401         gchar *tags_file = NULL;
 402
 403         g_return_if_fail(item != NULL);
 404         g_return_if_fail(item->folder != NULL);
 405         g_return_if_fail(item->folder->node != NULL);
 406
 407         start_node = node = item->node;
 408
 409         node = item->folder->node;
 410
 411         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 412         node = node->children;
 413
 414         /* remove my children */
 415         while (node != NULL) {
 416                 if (node && node->data) {
 417                         FolderItem *sub_item = (FolderItem*) node->data;
 418                         node = node->next;
 419                         folder_item_remove(sub_item);
 420                 }
 421         }
 422
 423         /* remove myself */
 424         if (item->cache != NULL) {
 425                 msgcache_destroy(item->cache);
 426                 item->cache = NULL;
 427         }
 428         tags_file = folder_item_get_tags_file(item);
 429         if (tags_file)
 430                 claws_unlink(tags_file);
 431         g_free(tags_file);
 432
 433         hookdata.folder = item->folder;
 434         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 435         hookdata.item = item;
 436         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 437
 438         node = start_node;
 439
 440         if (item->folder->node == node)
 441                 item->folder->node = NULL;
 442
 443         folder_item_destroy(item);
 444
 445         g_node_destroy(node);
 446 }
 447
 448 void folder_item_remove_children(FolderItem *item)
 449 {
 450         GNode *node, *next;
 451
 452         g_return_if_fail(item != NULL);
 453         g_return_if_fail(item->folder != NULL);
 454         g_return_if_fail(item->node != NULL);
 455
 456         node = item->node->children;
 457         while (node != NULL) {
 458                 next = node->next;
 459                 folder_item_remove(FOLDER_ITEM(node->data));
 460                 node = next;
 461         }
 462 }
 463
 464 void folder_item_destroy(FolderItem *item)
 465 {
 466         Folder *folder;
 467
 468         g_return_if_fail(item != NULL);
 469
 470         folder = item->folder;
 471         if (folder) {
 472                 if (folder->inbox == item)
 473                         folder->inbox = NULL;
 474                 else if (folder->outbox == item)
 475                         folder->outbox = NULL;
 476                 else if (folder->draft == item)
 477                         folder->draft = NULL;
 478                 else if (folder->queue == item)
 479                         folder->queue = NULL;
 480                 else if (folder->trash == item)
 481                         folder->trash = NULL;
 482         }
 483
 484         if (item->cache)
 485                 folder_item_free_cache(item, TRUE);
 486         if (item->prefs)
 487                 folder_item_prefs_free(item->prefs);
 488         g_free(item->name);
 489         g_free(item->path);
 490
 491         if (item->folder != NULL) {
 492                 if(item->folder->klass->item_destroy) {
 493                         item->folder->klass->item_destroy(item->folder, item);
 494                 } else {
 495                         g_free(item);
 496                 }
 497         }
 498 }
 499
 500 FolderItem *folder_item_parent(FolderItem *item)
 501 {
 502         g_return_val_if_fail(item != NULL, NULL);
 503         g_return_val_if_fail(item->node != NULL, NULL);
 504
 505         if (item->node->parent == NULL)
 506                 return NULL;
 507         return (FolderItem *) item->node->parent->data;
 508 }
 509
 510 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 511 {
 512         GList *cur;
 513
 514         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 515                 XMLAttr *attr = (XMLAttr *) cur->data;
 516
 517                 if (!attr || !attr->name || !attr->value) continue;
 518                 if (!strcmp(attr->name, "type")) {
 519                         if (!g_ascii_strcasecmp(attr->value, "normal"))
 520                                 item->stype = F_NORMAL;
 521                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
 522                                 item->stype = F_INBOX;
 523                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
 524                                 item->stype = F_OUTBOX;
 525                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
 526                                 item->stype = F_DRAFT;
 527                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
 528                                 item->stype = F_QUEUE;
 529                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
 530                                 item->stype = F_TRASH;
 531                 } else if (!strcmp(attr->name, "name")) {
 532                         g_free(item->name);
 533                         item->name = g_strdup(attr->value);
 534                 } else if (!strcmp(attr->name, "path")) {
 535                         g_free(item->path);
 536                         item->path = g_strdup(attr->value);
 537                 } else if (!strcmp(attr->name, "mtime"))
 538                         item->mtime = strtoul(attr->value, NULL, 10);
 539                 else if (!strcmp(attr->name, "new"))
 540                         item->new_msgs = atoi(attr->value);
 541                 else if (!strcmp(attr->name, "unread"))
 542                         item->unread_msgs = atoi(attr->value);
 543                 else if (!strcmp(attr->name, "unreadmarked"))
 544                         item->unreadmarked_msgs = atoi(attr->value);
 545                 else if (!strcmp(attr->name, "marked"))
 546                         item->marked_msgs = atoi(attr->value);
 547                 else if (!strcmp(attr->name, "replied"))
 548                         item->replied_msgs = atoi(attr->value);
 549                 else if (!strcmp(attr->name, "forwarded"))
 550                         item->forwarded_msgs = atoi(attr->value);
 551                 else if (!strcmp(attr->name, "locked"))
 552                         item->locked_msgs = atoi(attr->value);
 553                 else if (!strcmp(attr->name, "ignored"))
 554                         item->ignored_msgs = atoi(attr->value);
 555                 else if (!strcmp(attr->name, "watched"))
 556                         item->watched_msgs = atoi(attr->value);
 557                 else if (!strcmp(attr->name, "order"))
 558                         item->order = atoi(attr->value);
 559                 else if (!strcmp(attr->name, "total"))
 560                         item->total_msgs = atoi(attr->value);
 561                 else if (!strcmp(attr->name, "no_sub"))
 562                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 563                 else if (!strcmp(attr->name, "no_select"))
 564                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 565                 else if (!strcmp(attr->name, "collapsed"))
 566                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 567                 else if (!strcmp(attr->name, "thread_collapsed"))
 568                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 569                 else if (!strcmp(attr->name, "threaded"))
 570                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 571                 else if (!strcmp(attr->name, "hidereadmsgs"))
 572                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 573                 else if (!strcmp(attr->name, "reqretrcpt"))
 574                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 575                 else if (!strcmp(attr->name, "sort_key")) {
 576                         if (!strcmp(attr->value, "none"))
 577                                 item->sort_key = SORT_BY_NONE;
 578                         else if (!strcmp(attr->value, "number"))
 579                                 item->sort_key = SORT_BY_NUMBER;
 580                         else if (!strcmp(attr->value, "size"))
 581                                 item->sort_key = SORT_BY_SIZE;
 582                         else if (!strcmp(attr->value, "date"))
 583                                 item->sort_key = SORT_BY_DATE;
 584                         else if (!strcmp(attr->value, "from"))
 585                                 item->sort_key = SORT_BY_FROM;
 586                         else if (!strcmp(attr->value, "subject"))
 587                                 item->sort_key = SORT_BY_SUBJECT;
 588                         else if (!strcmp(attr->value, "score"))
 589                                 item->sort_key = SORT_BY_SCORE;
 590                         else if (!strcmp(attr->value, "label"))
 591                                 item->sort_key = SORT_BY_LABEL;
 592                         else if (!strcmp(attr->value, "mark"))
 593                                 item->sort_key = SORT_BY_MARK;
 594                         else if (!strcmp(attr->value, "unread"))
 595                                 item->sort_key = SORT_BY_STATUS;
 596                         else if (!strcmp(attr->value, "mime"))
 597                                 item->sort_key = SORT_BY_MIME;
 598                         else if (!strcmp(attr->value, "to"))
 599                                 item->sort_key = SORT_BY_TO;
 600                         else if (!strcmp(attr->value, "locked"))
 601                                 item->sort_key = SORT_BY_LOCKED;
 602                         else if (!strcmp(attr->value, "tags"))
 603                                 item->sort_key = SORT_BY_TAGS;
 604                         else if (!strcmp(attr->value, "thread_date"))
 605                                 item->sort_key = SORT_BY_THREAD_DATE;
 606                 } else if (!strcmp(attr->name, "sort_type")) {
 607                         if (!strcmp(attr->value, "ascending"))
 608                                 item->sort_type = SORT_ASCENDING;
 609                         else
 610                                 item->sort_type = SORT_DESCENDING;
 611                 } else if (!strcmp(attr->name, "account_id")) {
 612                         PrefsAccount *account;
 613
 614                         account = account_find_from_id(atoi(attr->value));
 615                         if (!account)
 616                                 g_warning("account_id: %s not found\n", attr->value);
 617                         else
 618                                 item->account = account;
 619                 } else if (!strcmp(attr->name, "apply_sub")) {
 620                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 621                 } else if (!strcmp(attr->name, "last_seen")) {
 622                         if (!claws_crashed())
 623                                 item->last_seen = atoi(attr->value);
 624                         else
 625                                 item->last_seen = 0;
 626                 }
 627         }
 628 }
 629
 630 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 631 {
 632         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 633                                                  "draft", "queue", "trash"};
 634         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 635                                         "from", "subject", "score", "label",
 636                                         "mark", "unread", "mime", "to",
 637                                         "locked", "tags", "thread_date" };
 638         XMLTag *tag;
 639         gchar *value;
 640
 641         tag = xml_tag_new("folderitem");
 642
 643         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
 644         if (item->name)
 645                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
 646         if (item->path)
 647                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
 648         if (item->no_sub)
 649                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
 650         if (item->no_select)
 651                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
 652         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
 653         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
 654         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
 655         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
 656         if (item->ret_rcpt)
 657                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
 658
 659         if (item->sort_key != SORT_BY_NONE) {
 660                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
 661                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 662         }
 663
 664         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
 665         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
 666         g_free(value);
 667         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
 668         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
 669         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
 670         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
 671         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
 672         xml_tag_add_attr(tag, xml_attr_new_int("replied", item->replied_msgs));
 673         xml_tag_add_attr(tag, xml_attr_new_int("forwarded", item->forwarded_msgs));
 674         xml_tag_add_attr(tag, xml_attr_new_int("locked", item->locked_msgs));
 675         xml_tag_add_attr(tag, xml_attr_new_int("ignore", item->ignored_msgs));
 676         xml_tag_add_attr(tag, xml_attr_new_int("watched", item->watched_msgs));
 677         xml_tag_add_attr(tag, xml_attr_new_int("order", item->order));
 678
 679         if (item->account)
 680                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
 681         if (item->apply_sub)
 682                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
 683
 684         xml_tag_add_attr(tag, xml_attr_new_int("last_seen", item->last_seen));
 685
 686         return tag;
 687 }
 688
 689 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 690 {
 691         g_return_if_fail(folder != NULL);
 692
 693         folder->ui_func = func;
 694         folder->ui_func_data = data;
 695 }
 696
 697 void folder_set_name(Folder *folder, const gchar *name)
 698 {
 699         g_return_if_fail(folder != NULL);
 700
 701         g_free(folder->name);
 702         folder->name = name ? g_strdup(name) : NULL;
 703         if (folder->node && folder->node->data) {
 704                 FolderItem *item = (FolderItem *)folder->node->data;
 705
 706                 g_free(item->name);
 707                 item->name = name ? g_strdup(name) : NULL;
 708         }
 709 }
 710
 711 void folder_set_sort(Folder *folder, guint sort)
 712 {
 713         g_return_if_fail(folder != NULL);
 714
 715         if (folder->sort != sort) {
 716                 folder_remove(folder);
 717                 folder->sort = sort;
 718                 folder_add(folder);
 719         }
 720 }
 721
 722 static gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 723         FolderItem *item = (FolderItem *) node->data;
 724
 725         folder_item_destroy(item);
 726         return FALSE;
 727 }
 728
 729 void folder_tree_destroy(Folder *folder)
 730 {
 731         GNode *node;
 732
 733         g_return_if_fail(folder != NULL);
 734
 735         node = folder->node;
 736
 737         prefs_filtering_clear_folder(folder);
 738
 739         if (node != NULL) {
 740                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 741                                 folder_tree_destroy_func, NULL);
 742                 g_node_destroy(node);
 743                 folder->node = NULL;
 744         }
 745 }
 746
 747 void folder_add(Folder *folder)
 748 {
 749         Folder *cur_folder;
 750         GList *cur;
 751         gint i;
 752         FolderUpdateData hookdata;
 753
 754         g_return_if_fail(folder != NULL);
 755
 756         if ((FOLDER_TYPE(folder) == F_IMAP ||
 757              FOLDER_TYPE(folder) == F_NEWS) &&
 758             folder->account == NULL) {
 759                 return;
 760         }
 761
 762         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 763                 cur_folder = FOLDER(cur->data);
 764                 if (cur_folder->sort < folder->sort)
 765                         break;
 766         }
 767
 768         folder_list = g_list_insert(folder_list, folder, i);
 769
 770         hookdata.folder = folder;
 771         hookdata.update_flags = FOLDER_ADD_FOLDER;
 772         hookdata.item = NULL;
 773         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 774 }
 775
 776 void folder_remove(Folder *folder)
 777 {
 778         FolderUpdateData hookdata;
 779
 780         g_return_if_fail(folder != NULL);
 781
 782         folder_list = g_list_remove(folder_list, folder);
 783
 784         hookdata.folder = folder;
 785         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
 786         hookdata.item = NULL;
 787         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 788 }
 789
 790 GList *folder_get_list(void)
 791 {
 792         return folder_list;
 793 }
 794
 795 gint folder_read_list(void)
 796 {
 797         GNode *node, *cur;
 798         XMLNode *xmlnode;
 799         gchar *path;
 800
 801         path = folder_get_list_path();
 802         if (!is_file_exist(path)) return -1;
 803         node = xml_parse_file(path);
 804         if (!node) return -1;
 805
 806         xmlnode = node->data;
 807         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 808                 g_warning("wrong folder list\n");
 809                 xml_free_tree(node);
 810                 return -1;
 811         }
 812
 813         cur = node->children;
 814         while (cur != NULL) {
 815                 Folder *folder;
 816
 817                 folder = folder_get_from_xml(cur);
 818                 if (folder != NULL)
 819                         folder_add(folder);
 820                 else
 821                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 822                                 (gpointer) xml_copy_tree(cur));
 823                 cur = cur->next;
 824         }
 825
 826         xml_free_tree(node);
 827         if (folder_list || folder_unloaded_list)
 828                 return 0;
 829         else
 830                 return -1;
 831 }
 832
 833 void folder_write_list(void)
 834 {
 835         GList *list;
 836         GSList *slist;
 837         Folder *folder;
 838         gchar *path;
 839         PrefFile *pfile;
 840         GNode *rootnode;
 841         XMLNode *xmlnode;
 842         XMLTag *tag;
 843
 844         path = folder_get_list_path();
 845         if ((pfile = prefs_write_open(path)) == NULL) return;
 846
 847         if (xml_file_put_xml_decl(pfile->fp) < 0) {
 848                 prefs_file_close_revert(pfile);
 849                 g_warning("failed to start write folder list.\n");
 850                 return;
 851         }
 852         tag = xml_tag_new("folderlist");
 853
 854         xmlnode = xml_node_new(tag, NULL);
 855
 856         rootnode = g_node_new(xmlnode);
 857
 858         for (list = folder_list; list != NULL; list = list->next) {
 859                 GNode *node;
 860
 861                 folder = list->data;
 862                 node = folder_get_xml_node(folder);
 863                 if (node != NULL)
 864                         g_node_append(rootnode, node);
 865         }
 866
 867         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 868                 GNode *node = (GNode *) slist->data;
 869
 870                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
 871         }
 872
 873         if (xml_write_tree(rootnode, pfile->fp) < 0) {
 874                 prefs_file_close_revert(pfile);
 875                 g_warning("failed to write folder list.\n");
 876         } else if (prefs_file_close(pfile) < 0) {
 877                 g_warning("failed to write folder list.\n");
 878         }
 879         xml_free_tree(rootnode);
 880 }
 881
 882 static gboolean folder_scan_tree_func(GNode *node, gpointer data)
 883 {
 884         GHashTable *pptable = (GHashTable *)data;
 885         FolderItem *item = (FolderItem *)node->data;
 886
 887         folder_item_restore_persist_prefs(item, pptable);
 888         folder_item_scan_full(item, FALSE);
 889
 890         return FALSE;
 891 }
 892
 893 void folder_scan_tree(Folder *folder, gboolean rebuild)
 894 {
 895         GHashTable *pptable;
 896         FolderUpdateData hookdata;
 897         Folder *old_folder = folder;
 898
 899         if (!folder->klass->scan_tree)
 900                 return;
 901
 902         pptable = folder_persist_prefs_new(folder);
 903
 904         if (rebuild)
 905                 folder_remove(folder);
 906
 907         if (folder->klass->scan_tree(folder) < 0) {
 908                 if (rebuild)
 909                         folder_add(old_folder);
 910                 return;
 911         } else if (rebuild)
 912                 folder_add(folder);
 913
 914         hookdata.folder = folder;
 915         hookdata.update_flags = FOLDER_TREE_CHANGED;
 916         hookdata.item = NULL;
 917         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 918
 919         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 920         folder_persist_prefs_free(pptable);
 921
 922         prefs_matcher_read_config();
 923
 924         folder_write_list();
 925 }
 926
 927 static gboolean folder_restore_prefs_func(GNode *node, gpointer data)
 928 {
 929         GHashTable *pptable = (GHashTable *)data;
 930         FolderItem *item = (FolderItem *)node->data;
 931
 932         folder_item_restore_persist_prefs(item, pptable);
 933
 934         return FALSE;
 935 }
 936
 937 void folder_fast_scan_tree(Folder *folder)
 938 {
 939         GHashTable *pptable;
 940         FolderUpdateData hookdata;
 941
 942         if (!folder->klass->scan_tree)
 943                 return;
 944
 945         pptable = folder_persist_prefs_new(folder);
 946
 947         if (folder->klass->scan_tree(folder) < 0) {
 948                 return;
 949         }
 950
 951         hookdata.folder = folder;
 952         hookdata.update_flags = FOLDER_TREE_CHANGED;
 953         hookdata.item = NULL;
 954         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 955
 956         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_restore_prefs_func, pptable);
 957         folder_persist_prefs_free(pptable);
 958
 959         prefs_matcher_read_config();
 960
 961         folder_write_list();
 962 }
 963
 964 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 965 {
 966         FolderItem *new_item;
 967
 968         g_return_val_if_fail(parent != NULL, NULL);
 969
 970         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 971         if (new_item) {
 972                 FolderUpdateData hookdata;
 973
 974                 new_item->cache = msgcache_new();
 975
 976                 hookdata.folder = new_item->folder;
 977                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
 978                 hookdata.item = new_item;
 979                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 980         }
 981
 982         return new_item;
 983 }
 984
 985 gint folder_item_rename(FolderItem *item, gchar *newname)
 986 {
 987         gint retval;
 988
 989         g_return_val_if_fail(item != NULL, -1);
 990         g_return_val_if_fail(newname != NULL, -1);
 991
 992         retval = item->folder->klass->rename_folder(item->folder, item, newname);
 993
 994         if (retval >= 0) {
 995                 FolderItemUpdateData hookdata;
 996                 FolderUpdateData hookdata2;
 997
 998                 hookdata.item = item;
 999                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
1000                 hookdata.msg = NULL;
1001                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
1002
1003                 hookdata2.folder = item->folder;
1004                 hookdata2.item = item;
1005                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
1006                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
1007         }
1008
1009         return retval;
1010 }
1011
1012 struct TotalMsgCount
1013 {
1014         guint new_msgs;
1015         guint unread_msgs;
1016         guint unreadmarked_msgs;
1017         guint marked_msgs;
1018         guint total_msgs;
1019         guint replied_msgs;
1020         guint forwarded_msgs;
1021         guint locked_msgs;
1022         guint ignored_msgs;
1023         guint watched_msgs;
1024 };
1025
1026 struct FuncToAllFoldersData
1027 {
1028         FolderItemFunc  function;
1029         gpointer        data;
1030 };
1031
1032 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
1033 {
1034         FolderItem *item;
1035         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
1036
1037         g_return_val_if_fail(node->data != NULL, FALSE);
1038
1039         item = FOLDER_ITEM(node->data);
1040         g_return_val_if_fail(item != NULL, FALSE);
1041
1042         function_data->function(item, function_data->data);
1043
1044         return FALSE;
1045 }
1046
1047 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
1048 {
1049         GList *list;
1050         Folder *folder;
1051         struct FuncToAllFoldersData function_data;
1052
1053         function_data.function = function;
1054         function_data.data = data;
1055
1056         for (list = folder_list; list != NULL; list = list->next) {
1057                 folder = FOLDER(list->data);
1058                 if (folder->node)
1059                         g_node_traverse(folder->node, G_PRE_ORDER,
1060                                         G_TRAVERSE_ALL, -1,
1061                                         folder_func_to_all_folders_func,
1062                                         &function_data);
1063         }
1064 }
1065
1066 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
1067 {
1068         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
1069
1070         count->new_msgs += item->new_msgs;
1071         count->unread_msgs += item->unread_msgs;
1072         count->unreadmarked_msgs += item->unreadmarked_msgs;
1073         count->marked_msgs += item->marked_msgs;
1074         count->total_msgs += item->total_msgs;
1075         count->replied_msgs += item->replied_msgs;
1076         count->forwarded_msgs += item->forwarded_msgs;
1077         count->locked_msgs += item->locked_msgs;
1078         count->ignored_msgs += item->ignored_msgs;
1079         count->watched_msgs += item->watched_msgs;
1080 }
1081
1082 struct TotalMsgStatus
1083 {
1084         guint new;
1085         guint unread;
1086         guint total;
1087         GString *str;
1088 };
1089
1090 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
1091 {
1092         FolderItem *item;
1093         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
1094         gchar *id;
1095
1096         g_return_val_if_fail(node->data != NULL, FALSE);
1097
1098         item = FOLDER_ITEM(node->data);
1099
1100         if (!item->path) return FALSE;
1101
1102         status->new += item->new_msgs;
1103         status->unread += item->unread_msgs;
1104         status->total += item->total_msgs;
1105
1106         if (status->str) {
1107                 id = folder_item_get_identifier(item);
1108                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
1109                                   item->new_msgs, item->unread_msgs,
1110                                   item->total_msgs, id);
1111                 g_free(id);
1112         }
1113
1114         return FALSE;
1115  }
1116
1117 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
1118                                        guint *total)
1119 {
1120         GList *list;
1121         Folder *folder;
1122         struct TotalMsgStatus status;
1123
1124         status.new = status.unread = status.total = 0;
1125         status.str = str;
1126
1127         debug_print("Counting total number of messages...\n");
1128
1129         for (list = folder_list; list != NULL; list = list->next) {
1130                 folder = FOLDER(list->data);
1131                 if (folder->node)
1132                         g_node_traverse(folder->node, G_PRE_ORDER,
1133                                         G_TRAVERSE_ALL, -1,
1134                                         folder_get_status_full_all_func,
1135                                         &status);
1136         }
1137
1138         *new = status.new;
1139         *unread = status.unread;
1140         *total = status.total;
1141 }
1142
1143 gchar *folder_get_status(GPtrArray *folders, gboolean full)
1144 {
1145         guint new, unread, total;
1146         GString *str;
1147         gint i;
1148         gchar *ret;
1149
1150         new = unread = total = 0;
1151
1152         str = g_string_new(NULL);
1153
1154         if (folders) {
1155                 for (i = 0; i < folders->len; i++) {
1156                         FolderItem *item;
1157
1158                         item = g_ptr_array_index(folders, i);
1159                         new += item->new_msgs;
1160                         unread += item->unread_msgs;
1161                         total += item->total_msgs;
1162
1163                         if (full) {
1164                                 gchar *id;
1165
1166                                 id = folder_item_get_identifier(item);
1167                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1168                                                   item->new_msgs, item->unread_msgs,
1169                                                   item->total_msgs, id);
1170                                 g_free(id);
1171                         }
1172                 }
1173         } else {
1174                 folder_get_status_full_all(full ? str : NULL,
1175                                            &new, &unread, &total);
1176         }
1177
1178         if (full)
1179                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1180         else
1181                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1182
1183         ret = str->str;
1184         g_string_free(str, FALSE);
1185
1186         return ret;
1187 }
1188
1189 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs,
1190                              guint *unreadmarked_msgs, guint *marked_msgs,
1191                              guint *total_msgs, guint *replied_msgs,
1192                              guint *forwarded_msgs, guint *locked_msgs,
1193                              guint *ignored_msgs, guint *watched_msgs)
1194 {
1195         struct TotalMsgCount count;
1196
1197         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = 0;
1198         count.total_msgs = count.replied_msgs = count.forwarded_msgs = 0;
1199         count.locked_msgs = count.ignored_msgs = count.watched_msgs = 0;
1200         count.marked_msgs = 0;
1201
1202         debug_print("Counting total number of messages...\n");
1203
1204         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1205
1206         *new_msgs = count.new_msgs;
1207         *unread_msgs = count.unread_msgs;
1208         *unreadmarked_msgs = count.unreadmarked_msgs;
1209         *marked_msgs = count.marked_msgs;
1210         *total_msgs = count.total_msgs;
1211         *replied_msgs = count.replied_msgs;
1212         *forwarded_msgs = count.forwarded_msgs;
1213         *locked_msgs = count.locked_msgs;
1214         *ignored_msgs = count.ignored_msgs;
1215         *watched_msgs = count.watched_msgs;
1216 }
1217
1218 Folder *folder_find_from_path(const gchar *path)
1219 {
1220         GList *list;
1221         Folder *folder;
1222
1223         for (list = folder_list; list != NULL; list = list->next) {
1224                 folder = list->data;
1225                 if ((FOLDER_TYPE(folder) == F_MH ||
1226                      FOLDER_TYPE(folder) == F_MBOX) &&
1227                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1228                         return folder;
1229         }
1230
1231         return NULL;
1232 }
1233
1234 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1235 {
1236         GList *list;
1237         Folder *folder;
1238
1239         for (list = folder_list; list != NULL; list = list->next) {
1240                 folder = list->data;
1241                 if (folder->klass == klass &&
1242                     strcmp2(name, folder->name) == 0)
1243                         return folder;
1244         }
1245
1246         return NULL;
1247 }
1248
1249 static gboolean folder_item_find_func(GNode *node, gpointer data)
1250 {
1251         FolderItem *item = node->data;
1252         gpointer *d = data;
1253         const gchar *path = d[0];
1254
1255         if (path_cmp(path, item->path) != 0)
1256                 return FALSE;
1257
1258         d[1] = item;
1259
1260         return TRUE;
1261 }
1262
1263 FolderItem *folder_find_item_from_path(const gchar *path)
1264 {
1265         Folder *folder;
1266         gpointer d[2];
1267         GList *list = folder_get_list();
1268
1269         folder = list ? list->data:NULL;
1270
1271         g_return_val_if_fail(folder != NULL, NULL);
1272
1273         d[0] = (gpointer)path;
1274         d[1] = NULL;
1275         while (d[1] == NULL && list) {
1276                 folder = FOLDER(list->data);
1277                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1278                         folder_item_find_func, d);
1279                 list = list->next;
1280         }
1281         return d[1];
1282 }
1283
1284 static gboolean folder_item_find_func_real_path(GNode *node, gpointer data)
1285 {
1286         FolderItem *item = node->data;
1287         gpointer *d = data;
1288         const gchar *path = d[0];
1289         gchar *tmp = folder_item_get_path(item);
1290         if (path_cmp(path, tmp) != 0) {
1291                 g_free(tmp);
1292                 return FALSE;
1293         }
1294         g_free(tmp);
1295         d[1] = item;
1296
1297         return TRUE;
1298 }
1299
1300 FolderItem *folder_find_item_from_real_path(const gchar *path)
1301 {
1302         Folder *folder;
1303         gpointer d[2];
1304         GList *list = folder_get_list();
1305
1306         folder = list ? list->data:NULL;
1307
1308         g_return_val_if_fail(folder != NULL, NULL);
1309
1310         d[0] = (gpointer)path;
1311         d[1] = NULL;
1312         while (d[1] == NULL && list) {
1313                 folder = FOLDER(list->data);
1314                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1315                         folder_item_find_func_real_path, d);
1316                 list = list->next;
1317         }
1318         return d[1];
1319 }
1320
1321 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1322 {
1323         GNode *node;
1324         FolderItem *child;
1325
1326         for (node = item->node->children; node != NULL; node = node->next) {
1327                 gchar *base;
1328                 child = FOLDER_ITEM(node->data);
1329                 base = g_path_get_basename(child->path);
1330                 if (strcmp2(base, name) == 0) {
1331                         g_free(base);
1332                         return child;
1333                 }
1334                 g_free(base);
1335         }
1336
1337         return NULL;
1338 }
1339
1340 FolderClass *folder_get_class_from_string(const gchar *str)
1341 {
1342         GSList *classlist;
1343
1344         classlist = folder_get_class_list();
1345         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1346                 FolderClass *class = (FolderClass *) classlist->data;
1347                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1348                         return class;
1349         }
1350
1351         return NULL;
1352 }
1353
1354 gchar *folder_get_identifier(Folder *folder)
1355 {
1356         gchar *type_str;
1357
1358         g_return_val_if_fail(folder != NULL, NULL);
1359
1360         type_str = folder->klass->idstr;
1361         return g_strconcat("#", type_str, "/", folder->name, NULL);
1362 }
1363
1364 gchar *folder_item_get_identifier(FolderItem *item)
1365 {
1366         gchar *id = NULL;
1367         gchar *folder_id = NULL;
1368
1369         g_return_val_if_fail(item != NULL, NULL);
1370
1371         if (item->path == NULL)
1372                 return NULL;
1373
1374         folder_id = folder_get_identifier(item->folder);
1375         id = g_strconcat(folder_id, "/", item->path, NULL);
1376         g_free(folder_id);
1377
1378         return id;
1379 }
1380
1381 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1382 {
1383         Folder *folder;
1384         gpointer d[2];
1385         gchar *str;
1386         gchar *p;
1387         gchar *name;
1388         gchar *path;
1389         FolderClass *class;
1390
1391         g_return_val_if_fail(identifier != NULL, NULL);
1392
1393         if (*identifier != '#')
1394                 return folder_find_item_from_path(identifier);
1395
1396         Xstrdup_a(str, identifier, return NULL);
1397
1398         p = strchr(str, '/');
1399         if (!p)
1400                 return folder_find_item_from_path(identifier);
1401         *p = '\0';
1402         p++;
1403         class = folder_get_class_from_string(&str[1]);
1404         if (class == NULL)
1405                 return folder_find_item_from_path(identifier);
1406
1407         name = p;
1408         p = strchr(p, '/');
1409         if (!p)
1410                 return folder_find_item_from_path(identifier);
1411         *p = '\0';
1412         p++;
1413
1414         folder = folder_find_from_name(name, class);
1415         if (!folder)
1416                 return folder_find_item_from_path(identifier);
1417
1418         path = p;
1419
1420         d[0] = (gpointer)path;
1421         d[1] = NULL;
1422         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1423                         folder_item_find_func, d);
1424         return d[1];
1425 }
1426
1427 /**
1428  * Get a displayable name for a FolderItem
1429  *
1430  * \param item FolderItem for that a name should be created
1431  * \return Displayable name for item, returned string has to
1432  *         be freed
1433  */
1434 gchar *folder_item_get_name(FolderItem *item)
1435 {
1436         gchar *name = NULL;
1437
1438         g_return_val_if_fail(item != NULL, g_strdup(""));
1439
1440         switch (item->stype) {
1441         case F_INBOX:
1442                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1443                                 item->name);
1444                 break;
1445         case F_OUTBOX:
1446                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1447                                 item->name);
1448                 break;
1449         case F_QUEUE:
1450                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1451                                 item->name);
1452                 break;
1453         case F_TRASH:
1454                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1455                                 item->name);
1456                 break;
1457         case F_DRAFT:
1458                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1459                                 item->name);
1460                 break;
1461         default:
1462                 break;
1463         }
1464
1465         if (name == NULL) {
1466                 /*
1467                  * should probably be done by a virtual function,
1468                  * the folder knows the ui string and how to abbrev
1469                 */
1470                 if (folder_item_parent(item) == NULL) {
1471                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1472                 } else {
1473                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1474                             item->path && !strcmp2(item->name, item->path))
1475                                 name = get_abbrev_newsgroup_name
1476                                         (item->path,
1477                                          prefs_common.ng_abbrev_len);
1478                         else
1479                                 name = g_strdup(item->name);
1480                 }
1481         }
1482
1483         if (name == NULL)
1484                 name = g_strdup("");
1485
1486         return name;
1487 }
1488
1489 gboolean folder_have_mailbox (void)
1490 {
1491         GList *cur;
1492         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1493                 Folder *folder = FOLDER(cur->data);
1494                 if (folder->inbox && folder->outbox)
1495                         return TRUE;
1496         }
1497         return FALSE;
1498 }
1499
1500 FolderItem *folder_get_default_inbox(void)
1501 {
1502         GList *flist;
1503
1504         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1505                 Folder * folder = FOLDER(flist->data);
1506
1507                 if (folder == NULL)
1508                         continue;
1509                 if (folder->inbox == NULL)
1510                         continue;
1511                 if (folder->klass->type == F_UNKNOWN)
1512                         continue;
1513
1514                 return folder->inbox;
1515         }
1516
1517         return NULL;
1518 }
1519
1520 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1521 {
1522         GList *flist;
1523
1524         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1525                 Folder * folder = FOLDER(flist->data);
1526
1527                 if (folder == NULL)
1528                         continue;
1529                 if (folder->inbox == NULL)
1530                         continue;
1531                 if (folder->klass->type != type)
1532                         continue;
1533
1534                 return folder->inbox;
1535         }
1536
1537         return NULL;
1538 }
1539
1540 FolderItem *folder_get_default_outbox(void)
1541 {
1542         GList *flist;
1543
1544         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1545                 Folder * folder = FOLDER(flist->data);
1546
1547                 if (folder == NULL)
1548                         continue;
1549                 if (folder->outbox == NULL)
1550                         continue;
1551                 if (folder->klass->type == F_UNKNOWN)
1552                         continue;
1553
1554                 return folder->outbox;
1555         }
1556
1557         return NULL;
1558 }
1559
1560 FolderItem *folder_get_default_outbox_for_class(FolderType type)
1561 {
1562         GList *flist;
1563
1564         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1565                 Folder * folder = FOLDER(flist->data);
1566
1567                 if (folder == NULL)
1568                         continue;
1569                 if (folder->outbox == NULL)
1570                         continue;
1571                 if (folder->klass->type != type)
1572                         continue;
1573
1574                 return folder->outbox;
1575         }
1576
1577         return NULL;
1578 }
1579
1580 FolderItem *folder_get_default_draft(void)
1581 {
1582         GList *flist;
1583
1584         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1585                 Folder * folder = FOLDER(flist->data);
1586
1587                 if (folder == NULL)
1588                         continue;
1589                 if (folder->draft == NULL)
1590                         continue;
1591                 if (folder->klass->type == F_UNKNOWN)
1592                         continue;
1593
1594                 return folder->draft;
1595         }
1596
1597         return NULL;
1598 }
1599
1600 FolderItem *folder_get_default_draft_for_class(FolderType type)
1601 {
1602         GList *flist;
1603
1604         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1605                 Folder * folder = FOLDER(flist->data);
1606
1607                 if (folder == NULL)
1608                         continue;
1609                 if (folder->draft == NULL)
1610                         continue;
1611                 if (folder->klass->type != type)
1612                         continue;
1613
1614                 return folder->draft;
1615         }
1616
1617         return NULL;
1618 }
1619
1620 FolderItem *folder_get_default_queue(void)
1621 {
1622         GList *flist;
1623
1624         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1625                 Folder * folder = FOLDER(flist->data);
1626
1627                 if (folder == NULL)
1628                         continue;
1629                 if (folder->queue == NULL)
1630                         continue;
1631                 if (folder->klass->type == F_UNKNOWN)
1632                         continue;
1633
1634                 return folder->queue;
1635         }
1636
1637         return NULL;
1638 }
1639
1640 FolderItem *folder_get_default_queue_for_class(FolderType type)
1641 {
1642         GList *flist;
1643
1644         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1645                 Folder * folder = FOLDER(flist->data);
1646
1647                 if (folder == NULL)
1648                         continue;
1649                 if (folder->queue == NULL)
1650                         continue;
1651                 if (folder->klass->type != type)
1652                         continue;
1653
1654                 return folder->queue;
1655         }
1656
1657         return NULL;
1658 }
1659
1660 FolderItem *folder_get_default_trash(void)
1661 {
1662         GList *flist;
1663
1664         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1665                 Folder * folder = FOLDER(flist->data);
1666
1667                 if (folder == NULL)
1668                         continue;
1669                 if (folder->trash == NULL)
1670                         continue;
1671                 if (folder->klass->type == F_UNKNOWN)
1672                         continue;
1673
1674                 return folder->trash;
1675         }
1676
1677         return NULL;
1678 }
1679
1680 FolderItem *folder_get_default_trash_for_class(FolderType type)
1681 {
1682         GList *flist;
1683
1684         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1685                 Folder * folder = FOLDER(flist->data);
1686
1687                 if (folder == NULL)
1688                         continue;
1689                 if (folder->trash == NULL)
1690                         continue;
1691                 if (folder->klass->type != type)
1692                         continue;
1693
1694                 return folder->trash;
1695         }
1696
1697         return NULL;
1698 }
1699
1700 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1701 {                                                               \
1702         if (!folder->member) {                                  \
1703                 item = folder_item_new(folder, dir, dir);       \
1704                 item->stype = type;                             \
1705                 folder_item_append(rootitem, item);             \
1706                 folder->member = item;                          \
1707         }                                                       \
1708 }
1709
1710 void folder_set_missing_folders(void)
1711 {
1712         Folder *folder;
1713         FolderItem *rootitem;
1714         FolderItem *item;
1715         GList *list;
1716
1717         for (list = folder_list; list != NULL; list = list->next) {
1718                 folder = list->data;
1719                 if (FOLDER_TYPE(folder) != F_MH) continue;
1720                 rootitem = FOLDER_ITEM(folder->node->data);
1721                 g_return_if_fail(rootitem != NULL);
1722
1723                 if (folder->inbox && folder->outbox && folder->draft &&
1724                     folder->queue && folder->trash)
1725                         continue;
1726
1727                 if (folder->klass->create_tree(folder) < 0) {
1728                         g_warning("%s: can't create the folder tree.\n",
1729                                   LOCAL_FOLDER(folder)->rootpath);
1730                         continue;
1731                 }
1732
1733                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1734                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1735                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1736                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1737                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1738         }
1739 }
1740
1741 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1742 {
1743         FolderItem *item = node->data;
1744         PrefsAccount *account = data;
1745
1746         if (item->account == account)
1747                 item->account = NULL;
1748
1749         return FALSE;
1750 }
1751
1752 void folder_unref_account_all(PrefsAccount *account)
1753 {
1754         Folder *folder;
1755         GList *list;
1756
1757         if (!account) return;
1758
1759         for (list = folder_list; list != NULL; list = list->next) {
1760                 folder = list->data;
1761                 if (folder->account == account)
1762                         folder->account = NULL;
1763                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1764                                 folder_unref_account_func, account);
1765         }
1766 }
1767
1768 #undef CREATE_FOLDER_IF_NOT_EXIST
1769
1770 gchar *folder_item_get_path(FolderItem *item)
1771 {
1772         Folder *folder;
1773
1774         g_return_val_if_fail(item != NULL, NULL);
1775         folder = item->folder;
1776         g_return_val_if_fail(folder != NULL, NULL);
1777
1778         return folder->klass->item_get_path(folder, item);
1779 }
1780
1781 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1782 {
1783         MsgInfo *msginfo_a = (MsgInfo *) a;
1784         MsgInfo *msginfo_b = (MsgInfo *) b;
1785
1786         return (msginfo_a->msgnum - msginfo_b->msgnum);
1787 }
1788
1789 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1790 {
1791         guint gint_a = GPOINTER_TO_INT(a);
1792         guint gint_b = GPOINTER_TO_INT(b);
1793
1794         return (gint_a - gint_b);
1795 }
1796
1797 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1798 {
1799         GRelation *relation;
1800         gint ret = 0;
1801         GSList *cur;
1802
1803         if(msglist == NULL)
1804                 return 0;
1805         if(item->folder->klass->get_flags == NULL)
1806                 return 0;
1807         if (item->no_select)
1808                 return 0;
1809
1810         relation = g_relation_new(2);
1811         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1812         if ((ret = item->folder->klass->get_flags(
1813             item->folder, item, msglist, relation)) == 0) {
1814                 GTuples *tuples;
1815                 MsgInfo *msginfo;
1816                 MsgPermFlags permflags = 0;
1817                 gboolean skip;
1818
1819                 folder_item_update_freeze();
1820                 folder_item_set_batch(item, TRUE);
1821                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1822                         msginfo = (MsgInfo *) cur->data;
1823
1824                         tuples = g_relation_select(relation, msginfo, 0);
1825                         skip = tuples->len < 1;
1826                         if (!skip)
1827                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1828                         g_tuples_destroy(tuples);
1829                         if (skip)
1830                                 continue;
1831
1832                         if (msginfo->flags.perm_flags != permflags) {
1833                                 procmsg_msginfo_change_flags(msginfo,
1834                                         permflags & ~msginfo->flags.perm_flags, 0,
1835                                         ~permflags & msginfo->flags.perm_flags, 0);
1836                         }
1837                 }
1838                 folder_item_set_batch(item, FALSE);
1839                 folder_item_update_thaw();
1840         }
1841         g_relation_destroy(relation);
1842
1843         return ret;
1844 }
1845
1846 static gint folder_item_syncronize_flags(FolderItem *item)
1847 {
1848         MsgInfoList *msglist = NULL;
1849         GSList *cur;
1850         gint ret = 0;
1851
1852         g_return_val_if_fail(item != NULL, -1);
1853         g_return_val_if_fail(item->folder != NULL, -1);
1854         g_return_val_if_fail(item->folder->klass != NULL, -1);
1855         if (item->no_select)
1856                 return -1;
1857
1858         item->scanning = ITEM_SCANNING_WITH_FLAGS;
1859
1860         if (item->cache == NULL)
1861                 folder_item_read_cache(item);
1862
1863         msglist = msgcache_get_msg_list(item->cache);
1864
1865         ret = syncronize_flags(item, msglist);
1866
1867         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
1868                 procmsg_msginfo_free((MsgInfo *) cur->data);
1869
1870         g_slist_free(msglist);
1871
1872         item->scanning = ITEM_NOT_SCANNING;
1873
1874         return ret;
1875 }
1876
1877 static void folder_item_process_open (FolderItem *item,
1878                                  void (*before_proc_func)(gpointer data),
1879                                  void (*after_proc_func)(gpointer data),
1880                                  gpointer data)
1881 {
1882         gchar *buf;
1883         if (item == NULL)
1884                 return;
1885         if((item->folder->klass->scan_required != NULL) &&
1886            (item->folder->klass->scan_required(item->folder, item))) {
1887                 folder_item_scan_full(item, TRUE);
1888         } else {
1889                 folder_item_syncronize_flags(item);
1890         }
1891
1892         /* Processing */
1893         if (item->prefs->enable_processing_when_opening) {
1894                 buf = g_strdup_printf(_("Processing (%s)...\n"),
1895                               item->path ? item->path : item->name);
1896                 g_free(buf);
1897
1898                 if (before_proc_func)
1899                         before_proc_func(data);
1900
1901                 folder_item_apply_processing(item);
1902
1903                 if (after_proc_func)
1904                         after_proc_func(data);
1905         }
1906         item->processing_pending = FALSE;
1907         return;
1908 }
1909
1910 gint folder_item_open(FolderItem *item)
1911 {
1912         START_TIMING("");
1913         if (item->no_select)
1914                 return -1;
1915
1916         if (item->scanning != ITEM_NOT_SCANNING) {
1917                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
1918                 return -2;
1919         }
1920
1921         item->processing_pending = TRUE;
1922         folder_item_process_open (item, NULL, NULL, NULL);
1923
1924         item->opened = TRUE;
1925         END_TIMING();
1926         return 0;
1927 }
1928
1929 gint folder_item_close(FolderItem *item)
1930 {
1931         GSList *mlist, *cur;
1932         Folder *folder;
1933
1934         g_return_val_if_fail(item != NULL, -1);
1935
1936         if (item->no_select)
1937                 return -1;
1938
1939         if (item->new_msgs) {
1940                 folder_item_update_freeze();
1941                 mlist = folder_item_get_msg_list(item);
1942                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1943                         MsgInfo * msginfo;
1944
1945                         msginfo = (MsgInfo *) cur->data;
1946                         if (MSG_IS_NEW(msginfo->flags))
1947                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1948                         procmsg_msginfo_free(msginfo);
1949                 }
1950                 g_slist_free(mlist);
1951                 folder_item_update_thaw();
1952         }
1953
1954         folder_item_write_cache(item);
1955
1956         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1957
1958         item->opened = FALSE;
1959         folder = item->folder;
1960
1961         if (folder->klass->close == NULL)
1962                 return 0;
1963
1964         return folder->klass->close(folder, item);
1965 }
1966
1967 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
1968 {
1969         MsgInfoList *msglist = NULL;
1970         Folder *folder = item->folder;
1971         if (item->no_select)
1972                 return NULL;
1973
1974         if (folder->klass->get_msginfos != NULL)
1975                 msglist = folder->klass->get_msginfos(folder, item, numlist);
1976         else {
1977                 MsgNumberList *elem;
1978
1979                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
1980                         MsgInfo *msginfo;
1981                         guint num;
1982
1983                         num = GPOINTER_TO_INT(elem->data);
1984                         msginfo = folder->klass->get_msginfo(folder, item, num);
1985                         if (msginfo != NULL)
1986                                 msglist = g_slist_prepend(msglist, msginfo);
1987                 }
1988         }
1989
1990         return msglist;
1991 }
1992
1993 static MsgInfo *get_msginfo(FolderItem *item, guint num)
1994 {
1995         MsgNumberList numlist;
1996         MsgInfoList *msglist;
1997         MsgInfo *msginfo = NULL;
1998
1999         numlist.data = GINT_TO_POINTER(num);
2000         numlist.next = NULL;
2001         msglist = get_msginfos(item, &numlist);
2002         if (msglist != NULL)
2003                 msginfo = procmsg_msginfo_new_ref(msglist->data);
2004         procmsg_msg_list_free(msglist);
2005
2006         return msginfo;
2007 }
2008
2009 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
2010 {
2011         Folder *folder;
2012         GSList *folder_list = NULL, *cache_list = NULL;
2013         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
2014         GSList *exists_list = NULL, *elem;
2015         GSList *newmsg_list = NULL;
2016         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
2017         guint markedcnt = 0, unreadmarkedcnt = 0;
2018         guint repliedcnt = 0, forwardedcnt = 0;
2019         guint lockedcnt = 0, ignoredcnt = 0, watchedcnt = 0;
2020
2021         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
2022         gboolean update_flags = 0, old_uids_valid = FALSE;
2023         GHashTable *subject_table = NULL;
2024
2025         g_return_val_if_fail(item != NULL, -1);
2026         if (item->path == NULL) return -1;
2027
2028         folder = item->folder;
2029
2030         g_return_val_if_fail(folder != NULL, -1);
2031         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
2032
2033         item->scanning = ITEM_SCANNING_WITH_FLAGS;
2034
2035         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
2036
2037         /* Get list of messages for folder and cache */
2038         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
2039                 debug_print("Error fetching list of message numbers\n");
2040                 item->scanning = ITEM_NOT_SCANNING;
2041                 return(-1);
2042         }
2043
2044         if(prefs_common.thread_by_subject) {
2045                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
2046         }
2047
2048         if (old_uids_valid) {
2049                 if (!item->cache)
2050                         folder_item_read_cache(item);
2051                 cache_list = msgcache_get_msg_list(item->cache);
2052         } else {
2053                 if (item->cache)
2054                         msgcache_destroy(item->cache);
2055                 item->cache = msgcache_new();
2056                 cache_list = NULL;
2057         }
2058
2059         /* Sort both lists */
2060         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
2061         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
2062
2063         cache_list_cur = cache_list;
2064         folder_list_cur = folder_list;
2065
2066         if (cache_list_cur != NULL) {
2067                 GSList *cache_list_last;
2068
2069                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2070                 cache_list_last = g_slist_last(cache_list);
2071                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
2072         } else {
2073                 cache_cur_num = G_MAXINT;
2074                 cache_max_num = 0;
2075         }
2076
2077         if (folder_list_cur != NULL) {
2078                 GSList *folder_list_last;
2079
2080                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2081                 folder_list_last = g_slist_last(folder_list);
2082                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
2083         } else {
2084                 folder_cur_num = G_MAXINT;
2085                 folder_max_num = 0;
2086         }
2087
2088         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
2089                 /*
2090                  *  Message only exists in the folder
2091                  *  Remember message for fetching
2092                  */
2093                 if (folder_cur_num < cache_cur_num) {
2094                         gboolean add = FALSE;
2095
2096                         switch(FOLDER_TYPE(folder)) {
2097                                 case F_NEWS:
2098                                         if (folder_cur_num < cache_max_num)
2099                                                 break;
2100
2101                                         if (folder->account->max_articles == 0) {
2102                                                 add = TRUE;
2103                                         }
2104
2105                                         if (folder_max_num <= folder->account->max_articles) {
2106                                                 add = TRUE;
2107                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
2108                                                 add = TRUE;
2109                                         }
2110                                         break;
2111                                 default:
2112                                         add = TRUE;
2113                                         break;
2114                         }
2115
2116                         if (add) {
2117                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
2118                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
2119                         }
2120
2121                         /* Move to next folder number */
2122                         if (folder_list_cur)
2123                                 folder_list_cur = folder_list_cur->next;
2124
2125                         if (folder_list_cur != NULL)
2126                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2127                         else
2128                                 folder_cur_num = G_MAXINT;
2129
2130                         continue;
2131                 }
2132
2133                 /*
2134                  *  Message only exists in the cache
2135                  *  Remove the message from the cache
2136                  */
2137                 if (cache_cur_num < folder_cur_num) {
2138                         msgcache_remove_msg(item->cache, cache_cur_num);
2139                         debug_print("Removed message %d from cache.\n", cache_cur_num);
2140
2141                         /* Move to next cache number */
2142                         if (cache_list_cur)
2143                                 cache_list_cur = cache_list_cur->next;
2144
2145                         if (cache_list_cur != NULL)
2146                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2147                         else
2148                                 cache_cur_num = G_MAXINT;
2149
2150                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2151
2152                         continue;
2153                 }
2154
2155                 /*
2156                  *  Message number exists in folder and cache!
2157                  *  Check if the message has been modified
2158                  */
2159                 if (cache_cur_num == folder_cur_num) {
2160                         MsgInfo *msginfo;
2161
2162                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
2163                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
2164                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2165                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
2166                                 procmsg_msginfo_free(msginfo);
2167
2168                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
2169                         } else {
2170                                 exists_list = g_slist_prepend(exists_list, msginfo);
2171
2172                                 if(prefs_common.thread_by_subject &&
2173                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2174                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2175                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2176                                 }
2177                         }
2178
2179                         /* Move to next folder and cache number */
2180                         if (cache_list_cur)
2181                                 cache_list_cur = cache_list_cur->next;
2182
2183                         if (folder_list_cur)
2184                                 folder_list_cur = folder_list_cur->next;
2185
2186                         if (cache_list_cur != NULL)
2187                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2188                         else
2189                                 cache_cur_num = G_MAXINT;
2190
2191                         if (folder_list_cur != NULL)
2192                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
2193                         else
2194                                 folder_cur_num = G_MAXINT;
2195
2196                         continue;
2197                 }
2198         }
2199
2200         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
2201                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
2202
2203         g_slist_free(cache_list);
2204         g_slist_free(folder_list);
2205
2206         if (new_list != NULL) {
2207                 GSList *tmp_list = NULL;
2208                 newmsg_list = get_msginfos(item, new_list);
2209                 g_slist_free(new_list);
2210                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2211                 syncronize_flags(item, tmp_list);
2212                 g_slist_free(tmp_list);
2213         } else {
2214                 syncronize_flags(item, exists_list);
2215         }
2216
2217         folder_item_update_freeze();
2218
2219         item->scanning = ITEM_SCANNING;
2220
2221         if (newmsg_list != NULL) {
2222                 GSList *elem, *to_filter = NULL;
2223                 gboolean do_filter = (filtering == TRUE) &&
2224                                         (item->stype == F_INBOX) &&
2225                                         (item->folder->account != NULL) &&
2226                                         (item->folder->account->filter_on_recv);
2227
2228                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2229                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2230
2231                         msgcache_add_msg(item->cache, msginfo);
2232                         if (!do_filter) {
2233                                 exists_list = g_slist_prepend(exists_list, msginfo);
2234
2235                                 if(prefs_common.thread_by_subject &&
2236                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2237                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2238                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2239                                 }
2240                         }
2241                 }
2242
2243                 if (do_filter) {
2244                         GSList *unfiltered;
2245
2246                         folder_item_set_batch(item, TRUE);
2247                         procmsg_msglist_filter(newmsg_list, item->folder->account,
2248                                         &to_filter, &unfiltered,
2249                                         TRUE);
2250                         folder_item_set_batch(item, FALSE);
2251
2252                         filtering_move_and_copy_msgs(newmsg_list);
2253                         if (to_filter != NULL) {
2254                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2255                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2256                                         procmsg_msginfo_free(msginfo);
2257                                 }
2258                                 g_slist_free(to_filter);
2259                         }
2260                         if (unfiltered != NULL) {
2261                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2262                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2263                                         exists_list = g_slist_prepend(exists_list, msginfo);
2264
2265                                         if(prefs_common.thread_by_subject &&
2266                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2267                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2268                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2269                                         }
2270                                 }
2271                                 g_slist_free(unfiltered);
2272                         }
2273                         if (prefs_common.real_time_sync)
2274                                 folder_item_synchronise(item);
2275                 } else {
2276                         if (prefs_common.real_time_sync)
2277                                 folder_item_synchronise(item);
2278                 }
2279
2280                 g_slist_free(newmsg_list);
2281
2282                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2283         }
2284
2285         folder_item_set_batch(item, TRUE);
2286         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2287                 MsgInfo *msginfo, *parent_msginfo;
2288
2289                 msginfo = elem->data;
2290                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2291                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2292                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2293                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2294                 }
2295                 if (!MSG_IS_WATCH_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_WATCH_THREAD)) {
2296                         procmsg_msginfo_set_flags(msginfo, MSG_WATCH_THREAD, 0);
2297                 }
2298                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2299                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2300                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2301                 {
2302                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2303                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2304                                                 MSG_NEW | MSG_UNREAD, 0);
2305                         }
2306                 }
2307                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2308                      folder_has_parent_of_type(item, F_QUEUE)  ||
2309                      folder_has_parent_of_type(item, F_DRAFT)  ||
2310                      folder_has_parent_of_type(item, F_TRASH)) &&
2311                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2312                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2313                 if (MSG_IS_NEW(msginfo->flags))
2314                         newcnt++;
2315                 if (MSG_IS_UNREAD(msginfo->flags))
2316                         unreadcnt++;
2317                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2318                         unreadmarkedcnt++;
2319                 if (MSG_IS_MARKED(msginfo->flags))
2320                         markedcnt++;
2321                 if (MSG_IS_REPLIED(msginfo->flags))
2322                         repliedcnt++;
2323                 if (MSG_IS_FORWARDED(msginfo->flags))
2324                         forwardedcnt++;
2325                 if (MSG_IS_LOCKED(msginfo->flags))
2326                         lockedcnt++;
2327                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2328                         ignoredcnt++;
2329                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2330                         watchedcnt++;
2331
2332                 totalcnt++;
2333
2334                 procmsg_msginfo_free(msginfo);
2335         }
2336         folder_item_set_batch(item, FALSE);
2337         g_slist_free(exists_list);
2338
2339         if(prefs_common.thread_by_subject) {
2340                 g_hash_table_destroy(subject_table);
2341         }
2342
2343         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2344         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2345         ||  item->unreadmarked_msgs != unreadmarkedcnt
2346         ||  item->replied_msgs != repliedcnt || item->forwarded_msgs != forwardedcnt
2347         ||  item->locked_msgs != lockedcnt || item->ignored_msgs != ignoredcnt
2348         ||  item->watched_msgs != watchedcnt) {
2349                 update_flags |= F_ITEM_UPDATE_CONTENT;
2350         }
2351
2352         item->new_msgs = newcnt;
2353         item->unread_msgs = unreadcnt;
2354         item->total_msgs = totalcnt;
2355         item->unreadmarked_msgs = unreadmarkedcnt;
2356         item->marked_msgs = markedcnt;
2357         item->replied_msgs = repliedcnt;
2358         item->forwarded_msgs = forwardedcnt;
2359         item->locked_msgs = lockedcnt;
2360         item->ignored_msgs = ignoredcnt;
2361         item->watched_msgs = watchedcnt;
2362
2363         update_flags |= F_ITEM_UPDATE_MSGCNT;
2364
2365         folder_item_update(item, update_flags);
2366         folder_item_update_thaw();
2367
2368         item->scanning = ITEM_NOT_SCANNING;
2369
2370         return 0;
2371 }
2372
2373 gint folder_item_scan(FolderItem *item)
2374 {
2375         return folder_item_scan_full(item, TRUE);
2376 }
2377
2378 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2379 {
2380         gint *memusage = (gint *)data;
2381
2382         if (item->cache == NULL)
2383                 return;
2384
2385         *memusage += msgcache_get_memory_usage(item->cache);
2386 }
2387
2388 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2389 {
2390         FolderItem *fa = (FolderItem *)a;
2391         FolderItem *fb = (FolderItem *)b;
2392
2393         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2394 }
2395
2396 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2397 {
2398         GSList **folder_item_list = (GSList **)data;
2399         gint difftime, expiretime;
2400
2401         if (item->cache == NULL)
2402                 return;
2403
2404         if (item->opened > 0)
2405                 return;
2406
2407         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2408         expiretime = prefs_common.cache_min_keep_time * 60;
2409         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2410
2411         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2412                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2413         }
2414 }
2415
2416 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2417 {
2418         g_return_val_if_fail(item != NULL, TRUE);
2419
2420         if (item->cache == NULL)
2421                 return TRUE;
2422
2423         if (item->opened > 0 && !force)
2424                 return FALSE;
2425
2426         folder_item_write_cache(item);
2427         msgcache_destroy(item->cache);
2428         item->cache = NULL;
2429         return TRUE;
2430 }
2431
2432 void folder_clean_cache_memory_force(void)
2433 {
2434         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2435         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2436
2437         prefs_common.cache_max_mem_usage = 0;
2438         prefs_common.cache_min_keep_time = 0;
2439
2440         folder_clean_cache_memory(NULL);
2441
2442         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2443         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2444 }
2445
2446 void folder_clean_cache_memory(FolderItem *protected_item)
2447 {
2448         gint memusage = 0;
2449
2450         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2451         debug_print("Total cache memory usage: %d\n", memusage);
2452
2453         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2454                 GSList *folder_item_list = NULL, *listitem;
2455
2456                 debug_print("Trying to free cache memory\n");
2457
2458                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2459                 listitem = folder_item_list;
2460                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2461                         FolderItem *item = (FolderItem *)(listitem->data);
2462                         gint cache_size = 0;
2463                         if (item == protected_item) {
2464                                 listitem = listitem->next;
2465                                 continue;
2466                         }
2467                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2468                         cache_size = msgcache_get_memory_usage(item->cache);
2469                         if (folder_item_free_cache(item, FALSE))
2470                                 memusage -= cache_size;
2471
2472                         listitem = listitem->next;
2473                 }
2474                 g_slist_free(folder_item_list);
2475         }
2476 }
2477
2478 static void folder_item_remove_cached_msg(FolderItem *item, MsgInfo *msginfo)
2479 {
2480         Folder *folder = item->folder;
2481
2482         g_return_if_fail(folder != NULL);
2483
2484         if (folder->klass->remove_cached_msg == NULL)
2485                 return;
2486
2487         folder->klass->remove_cached_msg(folder, item, msginfo);
2488 }
2489
2490 static void folder_item_clean_local_files(FolderItem *item, gint days)
2491 {
2492         g_return_if_fail(item != NULL);
2493         g_return_if_fail(item->folder != NULL);
2494
2495         if (FOLDER_TYPE(item->folder) == F_IMAP ||
2496             FOLDER_TYPE(item->folder) == F_NEWS) {
2497                 GSList *msglist = folder_item_get_msg_list(item);
2498                 GSList *cur;
2499                 time_t t = time(NULL);
2500                 for (cur = msglist; cur; cur = cur->next) {
2501                         MsgInfo *msginfo = (MsgInfo *)cur->data;
2502                         gint age = (t - msginfo->date_t) / (60*60*24);
2503                         if (age > days)
2504                                 folder_item_remove_cached_msg(item, msginfo);
2505                 }
2506                 procmsg_msg_list_free(msglist);
2507         }
2508 }
2509
2510 static void folder_item_read_cache(FolderItem *item)
2511 {
2512         gchar *cache_file, *mark_file, *tags_file;
2513         START_TIMING("");
2514         g_return_if_fail(item != NULL);
2515
2516         if (item->path != NULL) {
2517                 cache_file = folder_item_get_cache_file(item);
2518                 mark_file = folder_item_get_mark_file(item);
2519                 tags_file = folder_item_get_tags_file(item);
2520                 item->cache = msgcache_read_cache(item, cache_file);
2521                 if (!item->cache) {
2522                         MsgInfoList *list, *cur;
2523                         guint newcnt = 0, unreadcnt = 0;
2524                         guint markedcnt = 0, unreadmarkedcnt = 0;
2525                         guint repliedcnt = 0, forwardedcnt = 0;
2526                         guint lockedcnt = 0, ignoredcnt = 0;
2527                         guint watchedcnt = 0;
2528                         MsgInfo *msginfo;
2529
2530                         item->cache = msgcache_new();
2531                         folder_item_scan_full(item, TRUE);
2532
2533                         msgcache_read_mark(item->cache, mark_file);
2534
2535                         list = msgcache_get_msg_list(item->cache);
2536                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2537                                 msginfo = cur->data;
2538
2539                                 if (MSG_IS_NEW(msginfo->flags))
2540                                         newcnt++;
2541                                 if (MSG_IS_UNREAD(msginfo->flags))
2542                                         unreadcnt++;
2543                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2544                                         unreadmarkedcnt++;
2545                                 if (MSG_IS_MARKED(msginfo->flags))
2546                                         markedcnt++;
2547                                 if (MSG_IS_REPLIED(msginfo->flags))
2548                                         repliedcnt++;
2549                                 if (MSG_IS_FORWARDED(msginfo->flags))
2550                                         forwardedcnt++;
2551                                 if (MSG_IS_LOCKED(msginfo->flags))
2552                                         lockedcnt++;
2553                                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2554                                         ignoredcnt++;
2555                                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2556                                         watchedcnt++;
2557                                 procmsg_msginfo_unset_flags(msginfo, MSG_FULLY_CACHED, 0);
2558                         }
2559                         item->new_msgs = newcnt;
2560                         item->unread_msgs = unreadcnt;
2561                         item->unreadmarked_msgs = unreadmarkedcnt;
2562                         item->marked_msgs = markedcnt;
2563                         item->replied_msgs = repliedcnt;
2564                         item->forwarded_msgs = forwardedcnt;
2565                         item->locked_msgs = lockedcnt;
2566                         item->ignored_msgs = ignoredcnt;
2567                         item->watched_msgs = watchedcnt;
2568                         procmsg_msg_list_free(list);
2569                 } else
2570                         msgcache_read_mark(item->cache, mark_file);
2571
2572                 msgcache_read_tags(item->cache, tags_file);
2573
2574                 g_free(cache_file);
2575                 g_free(mark_file);
2576                 g_free(tags_file);
2577         } else {
2578                 item->cache = msgcache_new();
2579         }
2580         END_TIMING();
2581         folder_clean_cache_memory(item);
2582 }
2583
2584 void folder_item_write_cache(FolderItem *item)
2585 {
2586         gchar *cache_file, *mark_file, *tags_file;
2587         FolderItemPrefs *prefs;
2588         gint filemode = 0;
2589         gchar *id;
2590         time_t last_mtime = (time_t)0;
2591         gboolean need_scan = FALSE;
2592
2593         if (!item || !item->path || !item->cache)
2594                 return;
2595
2596         last_mtime = item->mtime;
2597         if (item->folder->klass->scan_required)
2598                 need_scan = item->folder->klass->scan_required(item->folder, item);
2599         else
2600                 need_scan = TRUE;
2601
2602         id = folder_item_get_identifier(item);
2603         debug_print("Save cache for folder %s\n", id);
2604         g_free(id);
2605
2606         cache_file = folder_item_get_cache_file(item);
2607         mark_file = folder_item_get_mark_file(item);
2608         tags_file = folder_item_get_tags_file(item);
2609         if (msgcache_write(cache_file, mark_file, tags_file, item->cache) < 0) {
2610                 prefs = item->prefs;
2611                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2612                         /* for cache file */
2613                         filemode = prefs->folder_chmod;
2614                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2615                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2616                         chmod(cache_file, filemode);
2617                 }
2618         }
2619
2620         if (!need_scan && item->folder->klass->set_mtime) {
2621                 if (item->mtime == last_mtime) {
2622                         item->folder->klass->set_mtime(item->folder, item);
2623                 }
2624         }
2625
2626         g_free(cache_file);
2627         g_free(mark_file);
2628         g_free(tags_file);
2629 }
2630
2631 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2632 {
2633         Folder *folder;
2634         MsgInfo *msginfo = NULL;
2635
2636         g_return_val_if_fail(item != NULL, NULL);
2637         if (item->no_select)
2638                 return NULL;
2639         folder = item->folder;
2640         if (!item->cache)
2641                 folder_item_read_cache(item);
2642
2643         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2644                 return msginfo;
2645
2646         msginfo = get_msginfo(item, num);
2647         if (msginfo != NULL) {
2648                 msgcache_add_msg(item->cache, msginfo);
2649                 return msginfo;
2650         }
2651
2652         return NULL;
2653 }
2654
2655 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2656 {
2657         Folder *folder;
2658         MsgInfo *msginfo;
2659
2660         g_return_val_if_fail(item != NULL, NULL);
2661         g_return_val_if_fail(msgid != NULL, NULL);
2662         if (item->no_select)
2663                 return FALSE;
2664
2665         folder = item->folder;
2666         if (!item->cache)
2667                 folder_item_read_cache(item);
2668
2669         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2670                 return msginfo;
2671
2672         return NULL;
2673 }
2674
2675 GSList *folder_item_get_msg_list(FolderItem *item)
2676 {
2677         g_return_val_if_fail(item != NULL, NULL);
2678         if (item->no_select)
2679                 return FALSE;
2680
2681         if (item->cache == 0)
2682                 folder_item_read_cache(item);
2683
2684         g_return_val_if_fail(item->cache != NULL, NULL);
2685
2686         return msgcache_get_msg_list(item->cache);
2687 }
2688
2689 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2690 {
2691         MsgInfo *msginfo = data;
2692         MimeInfo *mimeinfo = node->data;
2693
2694         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2695          && (!mimeinfo->subtype ||  strcmp(mimeinfo->subtype, "pgp-signature"))) {
2696                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2697         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2698                  mimeinfo->type != MIMETYPE_TEXT &&
2699                  mimeinfo->type != MIMETYPE_MULTIPART) {
2700                 if (!mimeinfo->subtype
2701                 ||  strcmp(mimeinfo->subtype, "pgp-signature"))
2702                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2703         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2704                 strcmp(mimeinfo->subtype, "pgp-signature") &&
2705                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2706                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2707                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2708         }
2709
2710         /* don't descend below top level message for signed and encrypted info */
2711         if (mimeinfo->type == MIMETYPE_MESSAGE)
2712                 return;
2713
2714         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2715                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2716         }
2717
2718         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2719                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2720         } else {
2721                 /* searching inside encrypted parts doesn't really make sense */
2722                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2723         }
2724 }
2725
2726 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2727 {
2728         Folder *folder;
2729         gchar *msgfile;
2730         MsgInfo *msginfo;
2731
2732         g_return_val_if_fail(item != NULL, NULL);
2733
2734         folder = item->folder;
2735
2736         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2737         if (item->no_select)
2738                 return NULL;
2739
2740         msgfile = folder->klass->fetch_msg(folder, item, num);
2741
2742         if (msgfile != NULL) {
2743                 msginfo = folder_item_get_msginfo(item, num);
2744                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2745                         MimeInfo *mimeinfo;
2746
2747                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2748                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2749                                 mimeinfo = procmime_scan_file(msgfile);
2750                         else
2751                                 mimeinfo = procmime_scan_queue_file(msgfile);
2752                         /* check for attachments */
2753                         if (mimeinfo != NULL) {
2754                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2755                                 procmime_mimeinfo_free_all(mimeinfo);
2756
2757                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2758                         }
2759                 }
2760                 procmsg_msginfo_free(msginfo);
2761         }
2762
2763         return msgfile;
2764 }
2765
2766 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2767                                   gboolean body)
2768 {
2769         Folder *folder;
2770         gchar *msgfile;
2771         MsgInfo *msginfo;
2772
2773         g_return_val_if_fail(item != NULL, NULL);
2774         if (item->no_select)
2775                 return NULL;
2776
2777         folder = item->folder;
2778
2779         if (folder->klass->fetch_msg_full == NULL)
2780                 return folder_item_fetch_msg(item, num);
2781
2782         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2783                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2784                                                 TRUE, TRUE);
2785         else
2786                 msgfile = folder->klass->fetch_msg_full(folder, item, num,
2787                                                 headers, body);
2788
2789         if (msgfile != NULL) {
2790                 msginfo = folder_item_get_msginfo(item, num);
2791                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2792                         MimeInfo *mimeinfo;
2793
2794                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2795                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2796                                 mimeinfo = procmime_scan_file(msgfile);
2797                         else
2798                                 mimeinfo = procmime_scan_queue_file(msgfile);
2799                         /* check for attachments */
2800                         if (mimeinfo != NULL) {
2801                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2802                                 procmime_mimeinfo_free_all(mimeinfo);
2803
2804                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2805                         }
2806                 }
2807                 procmsg_msginfo_free(msginfo);
2808         }
2809
2810         return msgfile;
2811 }
2812
2813
2814 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2815 {
2816         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2817                                        {NULL,           NULL, FALSE}};
2818         FILE *fp;
2819         MsgInfo *msginfo;
2820         gint msgnum = 0;
2821         gchar buf[BUFFSIZE];
2822
2823         if ((fp = g_fopen(file, "rb")) == NULL)
2824                 return 0;
2825
2826         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2827             (folder_has_parent_of_type(dest, F_DRAFT)))
2828                 while (fgets(buf, sizeof(buf), fp) != NULL) {
2829                         /* new way */
2830                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
2831                                 strlen("X-Claws-End-Special-Headers:"))) ||
2832                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
2833                                 strlen("X-Sylpheed-End-Special-Headers:"))))
2834                                 break;
2835                         /* old way */
2836                         if (buf[0] == '\r' || buf[0] == '\n') break;
2837                         /* from other mailers */
2838                         if (!strncmp(buf, "Date: ", 6)
2839                         ||  !strncmp(buf, "To: ", 4)
2840                         ||  !strncmp(buf, "From: ", 6)
2841                         ||  !strncmp(buf, "Subject: ", 9)) {
2842                                 rewind(fp);
2843                                 break;
2844                         }
2845                 }
2846
2847         procheader_get_header_fields(fp, hentry);
2848         debug_print("looking for %s\n", hentry[0].body);
2849         if (hentry[0].body) {
2850                 extract_parenthesis(hentry[0].body, '<', '>');
2851                 remove_space(hentry[0].body);
2852                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2853                         msgnum = msginfo->msgnum;
2854                         procmsg_msginfo_free(msginfo);
2855
2856                         debug_print("found message as uid %d\n", msgnum);
2857                 }
2858         }
2859
2860         g_free(hentry[0].body);
2861         hentry[0].body = NULL;
2862         fclose(fp);
2863
2864         return msgnum;
2865 }
2866
2867 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2868 {
2869         MsgPermFlags perm_flags = 0;
2870         MsgTmpFlags tmp_flags = 0;
2871
2872         /* create new flags */
2873         if (source != NULL) {
2874                 /* copy original flags */
2875                 perm_flags = source->flags.perm_flags;
2876                 tmp_flags = source->flags.tmp_flags;
2877         } else {
2878                 perm_flags = dest->flags.perm_flags;
2879                 tmp_flags = dest->flags.tmp_flags;
2880         }
2881
2882         /* remove new, unread and deleted in special folders */
2883         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
2884             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
2885             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
2886             folder_has_parent_of_type(dest->folder, F_TRASH))
2887                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
2888
2889         /* set ignore flag of ignored parent exists */
2890         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
2891                 perm_flags |= MSG_IGNORE_THREAD;
2892
2893         /* unset FULLY_CACHED flags */
2894         perm_flags &= ~MSG_FULLY_CACHED;
2895
2896         if (procmsg_msg_has_flagged_parent(dest, MSG_WATCH_THREAD))
2897                 perm_flags |= MSG_WATCH_THREAD;
2898
2899         /* Unset tmp flags that should not be copied */
2900         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
2901
2902         /* unset flags that are set but should not */
2903         /* and set new flags */
2904         procmsg_msginfo_change_flags(dest,
2905                                   ~dest->flags.perm_flags & perm_flags,
2906                                   ~dest->flags.tmp_flags  & tmp_flags,
2907                                    dest->flags.perm_flags & ~perm_flags,
2908                                    dest->flags.tmp_flags  & ~tmp_flags);
2909
2910         if (source && source->tags) {
2911                 g_slist_free(dest->tags);
2912                 dest->tags = g_slist_copy(source->tags);
2913                 folder_item_commit_tags(dest->folder, dest, dest->tags, NULL);
2914         }
2915 }
2916
2917 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
2918 {
2919         /* update folder stats */
2920         if (MSG_IS_NEW(newmsginfo->flags))
2921                 item->new_msgs++;
2922         if (MSG_IS_UNREAD(newmsginfo->flags))
2923                 item->unread_msgs++;
2924         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
2925                 item->unreadmarked_msgs++;
2926         if (MSG_IS_MARKED(newmsginfo->flags))
2927                 item->marked_msgs++;
2928         if (MSG_IS_REPLIED(newmsginfo->flags))
2929                 item->replied_msgs++;
2930         if (MSG_IS_FORWARDED(newmsginfo->flags))
2931                 item->forwarded_msgs++;
2932         if (MSG_IS_LOCKED(newmsginfo->flags))
2933                 item->locked_msgs++;
2934         if (MSG_IS_IGNORE_THREAD(newmsginfo->flags))
2935                 item->ignored_msgs++;
2936         if (MSG_IS_WATCH_THREAD(newmsginfo->flags))
2937                 item->watched_msgs++;
2938         item->total_msgs++;
2939
2940         folder_item_update_freeze();
2941
2942         if (!item->cache)
2943                 folder_item_read_cache(item);
2944
2945         msgcache_add_msg(item->cache, newmsginfo);
2946         copy_msginfo_flags(flagsource, newmsginfo);
2947         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
2948         folder_item_update_thaw();
2949 }
2950
2951 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
2952 {
2953         MsgInfoUpdate msginfo_update;
2954
2955         if (!item->cache)
2956                 folder_item_read_cache(item);
2957
2958         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2959                 msginfo->folder->new_msgs--;
2960         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2961                 msginfo->folder->unread_msgs--;
2962         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2963                 msginfo->folder->unreadmarked_msgs--;
2964         if (MSG_IS_MARKED(msginfo->flags))
2965                 item->marked_msgs--;
2966         if (MSG_IS_REPLIED(msginfo->flags))
2967                 item->replied_msgs--;
2968         if (MSG_IS_FORWARDED(msginfo->flags))
2969                 item->forwarded_msgs--;
2970         if (MSG_IS_LOCKED(msginfo->flags))
2971                 item->locked_msgs--;
2972         if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2973                 item->ignored_msgs--;
2974         if (MSG_IS_WATCH_THREAD(msginfo->flags))
2975                 item->watched_msgs--;
2976
2977         msginfo->folder->total_msgs--;
2978
2979         msginfo_update.msginfo = msginfo;
2980         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
2981         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2982
2983         msgcache_remove_msg(item->cache, msginfo->msgnum);
2984         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
2985 }
2986
2987 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
2988                          MsgFlags *flags, gboolean remove_source)
2989 {
2990         GSList file_list;
2991         MsgFileInfo fileinfo;
2992
2993         g_return_val_if_fail(dest != NULL, -1);
2994         g_return_val_if_fail(file != NULL, -1);
2995
2996         fileinfo.msginfo = NULL;
2997         fileinfo.file = (gchar *)file;
2998         fileinfo.flags = flags;
2999         file_list.data = &fileinfo;
3000         file_list.next = NULL;
3001
3002         return folder_item_add_msgs(dest, &file_list, remove_source);
3003 }
3004
3005 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
3006                           gboolean remove_source)
3007 {
3008         Folder *folder;
3009         gint ret, num, lastnum = -1;
3010         GSList *file_cur;
3011         GRelation *relation;
3012         MsgFileInfo *fileinfo = NULL;
3013         gboolean folderscan = FALSE;
3014
3015         g_return_val_if_fail(dest != NULL, -1);
3016         g_return_val_if_fail(file_list != NULL, -1);
3017         g_return_val_if_fail(dest->folder != NULL, -1);
3018         if (dest->no_select)
3019                 return -1;
3020
3021         folder = dest->folder;
3022
3023         relation = g_relation_new(2);
3024         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3025
3026         if (folder->klass->add_msgs != NULL) {
3027                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
3028                 if (ret < 0) {
3029                         g_relation_destroy(relation);
3030                         return ret;
3031                 }
3032         } else {
3033                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3034                         fileinfo = (MsgFileInfo *) file_cur->data;
3035
3036                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
3037                         if (ret < 0) {
3038                                 g_relation_destroy(relation);
3039                                 return ret;
3040                         }
3041                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
3042                 }
3043         }
3044
3045         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3046                 GTuples *tuples;
3047
3048                 fileinfo = (MsgFileInfo *) file_cur->data;
3049                 tuples = g_relation_select(relation, fileinfo, 0);
3050                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3051                 g_tuples_destroy(tuples);
3052
3053                 if (num >= 0) {
3054                         MsgInfo *newmsginfo;
3055
3056                         if (num == 0) {
3057                                 if (!folderscan) {
3058                                         folder_item_scan_full(dest, FALSE);
3059                                         folderscan = TRUE;
3060                                 }
3061                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
3062                                 debug_print("got num %d\n", num);
3063                         }
3064
3065                         if (num > lastnum)
3066                                 lastnum = num;
3067
3068                         if (num >= 0 && remove_source) {
3069                                 if (claws_unlink(fileinfo->file) < 0)
3070                                         FILE_OP_ERROR(fileinfo->file, "unlink");
3071                         }
3072
3073                         if (num == 0)
3074                                 continue;
3075
3076                         if (!folderscan &&
3077                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
3078                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
3079                                 procmsg_msginfo_free(newmsginfo);
3080                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
3081                                 /* TODO: set default flags */
3082                                 procmsg_msginfo_free(newmsginfo);
3083                         }
3084                 }
3085         }
3086
3087         g_relation_destroy(relation);
3088
3089         return lastnum;
3090 }
3091
3092 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy)
3093 {
3094         GSList *mlist;
3095         FolderItem *new_item;
3096         FolderItem *next_item;
3097         GNode *srcnode;
3098         gchar *old_id, *new_id;
3099
3100         /* move messages */
3101         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
3102         new_item = folder_create_folder(dest, src->name);
3103         if (new_item == NULL) {
3104                 g_print("Can't create folder\n");
3105                 return NULL;
3106         }
3107
3108         if (new_item->folder == NULL)
3109                 new_item->folder = dest->folder;
3110
3111         /* move messages */
3112         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"),
3113                         src->name, new_item->path);
3114
3115         mlist = folder_item_get_msg_list(src);
3116
3117         if (mlist != NULL) {
3118                 if (copy)
3119                         folder_item_copy_msgs(new_item, mlist);
3120                 else
3121                         folder_item_move_msgs(new_item, mlist);
3122                 procmsg_msg_list_free(mlist);
3123         }
3124
3125         /*copy prefs*/
3126         folder_item_prefs_copy_prefs(src, new_item);
3127
3128         /* copy internal data */
3129         if (src->folder->klass == new_item->folder->klass &&
3130             src->folder->klass->copy_private_data != NULL)
3131                 src->folder->klass->copy_private_data(src->folder,
3132                                         src, new_item);
3133         new_item->collapsed = src->collapsed;
3134         new_item->thread_collapsed = src->thread_collapsed;
3135         new_item->threaded  = src->threaded;
3136         new_item->ret_rcpt  = src->ret_rcpt;
3137         new_item->hide_read_msgs = src->hide_read_msgs;
3138         new_item->sort_key  = src->sort_key;
3139         new_item->sort_type = src->sort_type;
3140
3141         prefs_matcher_write_config();
3142
3143         /* recurse */
3144         srcnode = src->folder->node;
3145         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
3146         srcnode = srcnode->children;
3147         while (srcnode != NULL) {
3148                 if (srcnode && srcnode->data) {
3149                         next_item = (FolderItem*) srcnode->data;
3150                         srcnode = srcnode->next;
3151                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
3152                                 return NULL;
3153                         }
3154                 }
3155         }
3156         old_id = folder_item_get_identifier(src);
3157         new_id = folder_item_get_identifier(new_item);
3158
3159         /* if src supports removing, otherwise only copy folder */
3160         if (src->folder->klass->remove_folder != NULL && !copy)
3161                 src->folder->klass->remove_folder(src->folder, src);
3162         folder_write_list();
3163
3164         if (!copy) {
3165                 debug_print("updating rules : %s => %s\n", old_id, new_id);
3166                 if (old_id != NULL && new_id != NULL) {
3167                         prefs_filtering_rename_path(old_id, new_id);
3168                         account_rename_path(old_id, new_id);
3169                 }
3170         }
3171         g_free(old_id);
3172         g_free(new_id);
3173
3174         return new_item;
3175 }
3176
3177 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
3178 {
3179         FolderItem *tmp = folder_item_parent(dest);
3180         gchar * src_identifier, * dst_identifier;
3181         gchar * phys_srcpath, * phys_dstpath, *tmppath;
3182
3183         while (tmp) {
3184                 if (tmp == src) {
3185                         return F_MOVE_FAILED_DEST_IS_CHILD;
3186                 }
3187                 tmp = folder_item_parent(tmp);
3188         }
3189
3190         tmp = folder_item_parent(src);
3191
3192         src_identifier = folder_item_get_identifier(src);
3193         dst_identifier = folder_item_get_identifier(dest);
3194
3195         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
3196                 /* dest can be a root folder */
3197                 dst_identifier = folder_get_identifier(dest->folder);
3198         }
3199         if (src_identifier == NULL || dst_identifier == NULL) {
3200                 debug_print("Can't get identifiers\n");
3201                 return F_MOVE_FAILED;
3202         }
3203
3204         if (src->folder != dest->folder && !copy) {
3205                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
3206         }
3207
3208         phys_srcpath = folder_item_get_path(src);
3209         tmppath = folder_item_get_path(dest);
3210         phys_dstpath = g_strconcat(tmppath,
3211                        G_DIR_SEPARATOR_S,
3212                        g_path_get_basename(phys_srcpath),
3213                        NULL);
3214         g_free(tmppath);
3215
3216         if (folder_item_parent(src) == dest || src == dest) {
3217                 g_free(src_identifier);
3218                 g_free(dst_identifier);
3219                 g_free(phys_srcpath);
3220                 g_free(phys_dstpath);
3221                 return F_MOVE_FAILED_DEST_IS_PARENT;
3222         }
3223         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
3224         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
3225                 return F_MOVE_FAILED;
3226         }
3227
3228         g_free(src_identifier);
3229         g_free(dst_identifier);
3230         g_free(phys_srcpath);
3231         g_free(phys_dstpath);
3232
3233         *new_item = tmp;
3234
3235         return F_MOVE_OK;
3236 }
3237
3238 /**
3239  * Copy a list of message to a new folder and remove
3240  * source messages if wanted
3241  */
3242 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
3243 {
3244         Folder *folder;
3245         GSList *l;
3246         gint num, lastnum = -1;
3247         gboolean folderscan = FALSE;
3248         GRelation *relation;
3249         GSList *not_moved = NULL;
3250         gint total = 0, curmsg = 0;
3251         MsgInfo *msginfo = NULL;
3252
3253         g_return_val_if_fail(dest != NULL, -1);
3254         g_return_val_if_fail(msglist != NULL, -1);
3255
3256         folder = dest->folder;
3257
3258         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3259         if (dest->no_select)
3260                 return -1;
3261
3262         msginfo = (MsgInfo *)msglist->data;
3263
3264         if (!msginfo)
3265                 return -1;
3266
3267         if (!MSG_IS_QUEUED(msginfo->flags) &&
3268             MSG_IS_DRAFT(msginfo->flags) &&
3269             folder_has_parent_of_type(dest, F_QUEUE)) {
3270                 GSList *cur = msglist;
3271                 gboolean queue_err = FALSE;
3272                 for (; cur; cur = cur->next) {
3273                         Compose *compose = NULL;
3274                         FolderItem *queue = dest;
3275                         int val = 0;
3276
3277                         msginfo = (MsgInfo *)cur->data;
3278                         compose = compose_reedit(msginfo, TRUE);
3279                         if (compose == NULL) {
3280                                 queue_err = TRUE;
3281                                 continue;
3282                         }
3283                         val = compose_queue(compose, NULL, &queue, NULL,
3284                                         FALSE);
3285                         if (val < 0) {
3286                                 queue_err = TRUE;
3287                         } else if (remove_source) {
3288                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3289                         }
3290                         if (val == 0)
3291                                 compose_close(compose);
3292                 }
3293                 return queue_err ? -1:0;
3294         }
3295
3296         relation = g_relation_new(2);
3297         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
3298         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
3299
3300         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3301                 MsgInfo * msginfo = (MsgInfo *) l->data;
3302
3303                 if (msginfo->planned_download != 0) {
3304                         int old_planned = msginfo->planned_download;
3305                         partial_unmark(msginfo);
3306                         /* little hack to reenable after */
3307                         msginfo->planned_download = old_planned;
3308                 }
3309         }
3310
3311         /*
3312          * Copy messages to destination folder and
3313          * store new message numbers in newmsgnums
3314          */
3315         if (folder->klass->copy_msgs != NULL) {
3316                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3317                         g_relation_destroy(relation);
3318                         return -1;
3319                 }
3320         } else {
3321                 MsgInfo * msginfo;
3322                 l = msglist;
3323
3324                 /* immediately stop if src and dest folders are identical */
3325                 if (l != NULL) {
3326                         msginfo = (MsgInfo *) l->data;
3327                         if (msginfo != NULL && msginfo->folder == dest) {
3328                                 g_relation_destroy(relation);
3329                                 return -1;
3330                         }
3331                 }
3332
3333                 for (; l != NULL ; l = g_slist_next(l)) {
3334                         msginfo = (MsgInfo *) l->data;
3335
3336                         num = folder->klass->copy_msg(folder, dest, msginfo);
3337                         if (num > 0)
3338                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
3339                         else
3340                                 not_moved = g_slist_prepend(not_moved, msginfo);
3341                 }
3342         }
3343
3344         if (remove_source) {
3345                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3346                 FolderItem *item = msginfo->folder;
3347                 /*
3348                  * Remove source messages from their folders if
3349                  * copying was successfull and update folder
3350                  * message counts
3351                  */
3352                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3353                         item->folder->klass->remove_msgs(item->folder,
3354                                                                 msginfo->folder,
3355                                                                 msglist,
3356                                                                 relation);
3357                 }
3358                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3359                         GTuples *tuples;
3360                         msginfo = (MsgInfo *) l->data;
3361                         item = msginfo->folder;
3362
3363                         tuples = g_relation_select(relation, msginfo, 0);
3364                         if (tuples) {
3365                                 if (tuples->len)
3366                                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3367                                 else
3368                                         num = 0;
3369                                 g_tuples_destroy(tuples);
3370                         } else {
3371                                 num = -1;
3372                         }
3373
3374                         if (g_slist_find(not_moved, msginfo))
3375                                 continue;
3376
3377                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3378                                 if (!item->folder->klass->remove_msgs)
3379                                         item->folder->klass->remove_msg(item->folder,
3380                                                                 msginfo->folder,
3381                                                                 msginfo->msgnum);
3382                                 remove_msginfo_from_cache(item, msginfo);
3383                         }
3384                 }
3385         }
3386
3387         /* Read cache for dest folder */
3388         if (!dest->cache) folder_item_read_cache(dest);
3389
3390         /*
3391          * Fetch new MsgInfos for new messages in dest folder,
3392          * add them to the msgcache and update folder message counts
3393          */
3394         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
3395                 folder_item_scan_full(dest, FALSE);
3396                 folderscan = TRUE;
3397         }
3398
3399         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3400         total = g_slist_length(msglist);
3401
3402         if (FOLDER_TYPE(dest->folder) == F_IMAP && total > 1) {
3403                 folder_item_scan_full(dest, FALSE);
3404                 folderscan = TRUE;
3405         }
3406         folder_item_set_batch(dest, TRUE);
3407         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3408                 MsgInfo *msginfo = (MsgInfo *) l->data;
3409                 GTuples *tuples;
3410
3411                 tuples = g_relation_select(relation, msginfo, 0);
3412                 if (tuples->len > 0) {
3413                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
3414                         g_tuples_destroy(tuples);
3415                 } else {
3416                         num = 0;
3417                         if (tuples)
3418                                 g_tuples_destroy(tuples);
3419                 }
3420                 statusbar_progress_all(curmsg++,total, 100);
3421                 if (curmsg % 100 == 0)
3422                         GTK_EVENTS_FLUSH();
3423
3424                 if (num >= 0) {
3425                         MsgInfo *newmsginfo = NULL;
3426
3427                         if (!folderscan && num > 0) {
3428                                 newmsginfo = get_msginfo(dest, num);
3429                                 if (newmsginfo != NULL) {
3430                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3431                                 }
3432                         }
3433                         if (newmsginfo == NULL) {
3434                                 if (!folderscan) {
3435                                         folder_item_scan_full(dest, FALSE);
3436                                         folderscan = TRUE;
3437                                 }
3438                                 if (msginfo->msgid != NULL) {
3439                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3440                                         if (newmsginfo != NULL) {
3441                                                 copy_msginfo_flags(msginfo, newmsginfo);
3442                                                 num = newmsginfo->msgnum;
3443                                         }
3444                                 }
3445                         }
3446
3447                         if (msginfo->planned_download
3448                             == POP3_PARTIAL_DLOAD_DELE) {
3449                                 partial_mark_for_delete(newmsginfo);
3450                         }
3451                         if (msginfo->planned_download
3452                             == POP3_PARTIAL_DLOAD_DLOAD) {
3453                                 partial_mark_for_download(newmsginfo);
3454                         }
3455                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3456                             procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3457                             procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3458                             hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3459                         }
3460                         procmsg_msginfo_free(newmsginfo);
3461
3462
3463                         if (num > lastnum)
3464                                 lastnum = num;
3465                 }
3466         }
3467         folder_item_set_batch(dest, FALSE);
3468         statusbar_progress_all(0,0,0);
3469         statusbar_pop_all();
3470
3471         g_relation_destroy(relation);
3472         if (not_moved != NULL) {
3473                 g_slist_free(not_moved);
3474                 return -1;
3475         } else
3476                 return lastnum;
3477 }
3478
3479 /**
3480  * Move a message to a new folder.
3481  *
3482  * \param dest Destination folder
3483  * \param msginfo The message
3484  */
3485 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3486 {
3487         GSList list;
3488
3489         g_return_val_if_fail(dest != NULL, -1);
3490         g_return_val_if_fail(msginfo != NULL, -1);
3491
3492         list.data = msginfo;
3493         list.next = NULL;
3494
3495         return do_copy_msgs(dest, &list, TRUE);
3496 }
3497
3498 /**
3499  * Move a list of messages to a new folder.
3500  *
3501  * \param dest Destination folder
3502  * \param msglist List of messages
3503  */
3504 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3505 {
3506         gint result = -1;
3507         g_return_val_if_fail(dest != NULL, -1);
3508         g_return_val_if_fail(msglist != NULL, -1);
3509         inc_lock();
3510         result = do_copy_msgs(dest, msglist, TRUE);
3511         inc_unlock();
3512         return result;
3513 }
3514
3515 /**
3516  * Copy a message to a new folder.
3517  *
3518  * \param dest Destination folder
3519  * \param msginfo The message
3520  */
3521 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3522 {
3523         GSList list;
3524
3525         g_return_val_if_fail(dest != NULL, -1);
3526         g_return_val_if_fail(msginfo != NULL, -1);
3527
3528         list.data = msginfo;
3529         list.next = NULL;
3530
3531         return do_copy_msgs(dest, &list, FALSE);
3532 }
3533
3534 /**
3535  * Copy a list of messages to a new folder.
3536  *
3537  * \param dest Destination folder
3538  * \param msglist List of messages
3539  */
3540 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3541 {
3542         gint result;
3543         g_return_val_if_fail(dest != NULL, -1);
3544         g_return_val_if_fail(msglist != NULL, -1);
3545
3546         inc_lock();
3547         result = do_copy_msgs(dest, msglist, FALSE);
3548         inc_unlock();
3549
3550         return result;
3551 }
3552
3553 gint folder_item_remove_msg(FolderItem *item, gint num)
3554 {
3555         Folder *folder;
3556         gint ret;
3557         MsgInfo *msginfo;
3558
3559         g_return_val_if_fail(item != NULL, -1);
3560         folder = item->folder;
3561         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3562         if (item->no_select)
3563                 return -1;
3564
3565         if (!item->cache) folder_item_read_cache(item);
3566
3567         msginfo = msgcache_get_msg(item->cache, num);
3568         if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3569                 procmsg_msginfo_free(msginfo);
3570                 return -1;
3571         }
3572         ret = folder->klass->remove_msg(folder, item, num);
3573
3574         if (msginfo != NULL) {
3575                 remove_msginfo_from_cache(item, msginfo);
3576                 procmsg_msginfo_free(msginfo);
3577         }
3578
3579         return ret;
3580 }
3581
3582 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3583 {
3584         Folder *folder;
3585         gint ret = 0;
3586         GSList *real_list = NULL, *cur = NULL;
3587
3588         g_return_val_if_fail(item != NULL, -1);
3589         folder = item->folder;
3590         g_return_val_if_fail(folder != NULL, -1);
3591         if (item->no_select)
3592                 return -1;
3593         inc_lock();
3594         if (!item->cache) folder_item_read_cache(item);
3595
3596         folder_item_update_freeze();
3597
3598         /* filter out locked mails */
3599         for (cur = msglist; cur; cur = cur->next) {
3600                 MsgInfo *info = (MsgInfo *)cur->data;
3601                 if (!MSG_IS_LOCKED(info->flags))
3602                         real_list = g_slist_prepend(real_list, info);
3603         }
3604
3605         real_list = g_slist_reverse(real_list);
3606
3607         if (item->folder->klass->remove_msgs) {
3608                 ret = item->folder->klass->remove_msgs(item->folder,
3609                                                         item,
3610                                                         real_list,
3611                                                         NULL);
3612         }
3613         while (ret == 0 && real_list != NULL) {
3614                 MsgInfo *msginfo = (MsgInfo *)real_list->data;
3615                 if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3616                         real_list = real_list->next;
3617                         continue;
3618                 }
3619                 if (!item->folder->klass->remove_msgs)
3620                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3621                 if (ret != 0) break;
3622                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3623                 real_list = real_list->next;
3624         }
3625         g_slist_free(real_list);
3626         folder_item_scan_full(item, FALSE);
3627         folder_item_update_thaw();
3628         inc_unlock();
3629         return ret;
3630 }
3631
3632 gint folder_item_remove_all_msg(FolderItem *item)
3633 {
3634         Folder *folder;
3635         gint result;
3636
3637         g_return_val_if_fail(item != NULL, -1);
3638         if (item->no_select)
3639                 return -1;
3640
3641         folder = item->folder;
3642
3643         inc_lock();
3644         if (folder->klass->remove_all_msg != NULL) {
3645                 result = folder->klass->remove_all_msg(folder, item);
3646
3647                 if (result == 0) {
3648                         folder_item_free_cache(item, TRUE);
3649                         item->cache = msgcache_new();
3650                 }
3651         } else {
3652                 MsgInfoList *msglist;
3653
3654                 msglist = folder_item_get_msg_list(item);
3655                 result = folder_item_remove_msgs(item, msglist);
3656                 procmsg_msg_list_free(msglist);
3657         }
3658
3659         if (result == 0) {
3660                 item->new_msgs = 0;
3661                 item->unread_msgs = 0;
3662                 item->unreadmarked_msgs = 0;
3663                 item->marked_msgs = 0;
3664                 item->total_msgs = 0;
3665                 item->replied_msgs = 0;
3666                 item->forwarded_msgs = 0;
3667                 item->locked_msgs = 0;
3668                 item->ignored_msgs = 0;
3669                 item->watched_msgs = 0;
3670                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3671         }
3672
3673         inc_unlock();
3674         return result;
3675 }
3676
3677 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3678 {
3679         g_return_if_fail(item != NULL);
3680         g_return_if_fail(msginfo != NULL);
3681         if (item->no_select)
3682                 return;
3683
3684         if (item->folder->klass->change_flags != NULL && item->scanning != ITEM_SCANNING_WITH_FLAGS) {
3685                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3686         } else {
3687                 msginfo->flags.perm_flags = newflags;
3688         }
3689 }
3690
3691 void folder_item_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_set, GSList *tags_unset)
3692 {
3693         Folder *folder = NULL;
3694
3695         if (!msginfo)
3696                 return;
3697         if (!item)
3698                 return;
3699         if (!tags_set && !tags_unset)
3700                 return;
3701
3702         folder = item->folder;
3703         if (!folder)
3704                 return;
3705
3706         if (folder->klass->commit_tags == NULL)
3707                 return;
3708
3709         folder->klass->commit_tags(item, msginfo, tags_set, tags_unset);
3710 }
3711
3712 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3713 {
3714         Folder *folder;
3715
3716         g_return_val_if_fail(item != NULL, FALSE);
3717         if (item->no_select)
3718                 return FALSE;
3719
3720         folder = item->folder;
3721
3722         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3723
3724         return folder->klass->is_msg_changed(folder, item, msginfo);
3725 }
3726
3727 void folder_item_discard_cache(FolderItem *item)
3728 {
3729         gchar *dir;
3730         gchar *cache;
3731
3732         if (!item)
3733                 return;
3734
3735         if (item->cache) {
3736                 msgcache_destroy(item->cache);
3737                 item->cache = NULL;
3738         }
3739         dir = folder_item_get_path(item);
3740         if (is_dir_exist(dir))
3741                 remove_all_numbered_files(dir);
3742         g_free(dir);
3743
3744         cache = folder_item_get_cache_file(item);
3745         if (is_file_exist(cache))
3746                 claws_unlink(cache);
3747         g_free(cache);
3748
3749 }
3750
3751 static gchar *folder_item_get_cache_file(FolderItem *item)
3752 {
3753         gchar *path;
3754         gchar *file;
3755         gchar *old_file;
3756
3757         g_return_val_if_fail(item != NULL, NULL);
3758         g_return_val_if_fail(item->path != NULL, NULL);
3759
3760         path = folder_item_get_path(item);
3761         g_return_val_if_fail(path != NULL, NULL);
3762         if (!is_dir_exist(path))
3763                 make_dir_hier(path);
3764         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3765         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
3766
3767         if (!is_file_exist(file) && is_file_exist(old_file))
3768                 move_file(old_file, file, FALSE);
3769         g_free(old_file);
3770         g_free(path);
3771
3772         return file;
3773 }
3774
3775 static gchar *folder_item_get_mark_file(FolderItem *item)
3776 {
3777         gchar *path;
3778         gchar *file;
3779         gchar *old_file;
3780
3781         g_return_val_if_fail(item != NULL, NULL);
3782         g_return_val_if_fail(item->path != NULL, NULL);
3783
3784         path = folder_item_get_path(item);
3785         g_return_val_if_fail(path != NULL, NULL);
3786         if (!is_dir_exist(path))
3787                 make_dir_hier(path);
3788         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3789         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
3790
3791         if (!is_file_exist(file) && is_file_exist(old_file))
3792                 move_file(old_file, file, FALSE);
3793         g_free(old_file);
3794         g_free(path);
3795
3796         return file;
3797 }
3798
3799 static gchar *folder_item_get_tags_file(FolderItem *item)
3800 {
3801         gchar *path;
3802         gchar *identifier;
3803         gchar *file;
3804
3805         /* we save tags files in rc_dir, because tagsrc is there too,
3806          * and storing tags directly in the mailboxes would give strange
3807          * result when using another Claws mailbox from another install
3808          * with different tags. */
3809
3810         g_return_val_if_fail(item != NULL, NULL);
3811
3812         identifier = folder_item_get_identifier(item);
3813         g_return_val_if_fail(identifier != NULL, NULL);
3814
3815 #ifdef G_OS_WIN32
3816         while (strchr(identifier, '/'))
3817                 *strchr(identifier, '/') = '\\';
3818 #endif
3819
3820         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3821                            "tagsdb", G_DIR_SEPARATOR_S,
3822                            identifier, NULL);
3823
3824         g_free(identifier);
3825
3826         if (!is_dir_exist(path))
3827                 make_dir_hier(path);
3828
3829         file = g_strconcat(path, G_DIR_SEPARATOR_S, TAGS_FILE, NULL);
3830
3831         g_free(path);
3832
3833         return file;
3834 }
3835
3836 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3837 {
3838         XMLNode *xmlnode = (XMLNode *) nodedata;
3839         Folder *folder = (Folder *) data;
3840         FolderItem *item;
3841
3842         g_return_val_if_fail(xmlnode != NULL, NULL);
3843         g_return_val_if_fail(folder != NULL, NULL);
3844
3845         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
3846                 g_warning("tag name != \"folderitem\"\n");
3847                 return NULL;
3848         }
3849
3850         item = folder_item_new(folder, "", "");
3851         if (folder->klass->item_set_xml != NULL)
3852                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
3853         else
3854                 folder_item_set_xml(folder, item, xmlnode->tag);
3855
3856         item->folder = folder;
3857
3858         switch (item->stype) {
3859         case F_INBOX:  folder->inbox  = item; break;
3860         case F_OUTBOX: folder->outbox = item; break;
3861         case F_DRAFT:  folder->draft  = item; break;
3862         case F_QUEUE:  folder->queue  = item; break;
3863         case F_TRASH:  folder->trash  = item; break;
3864         default:       break;
3865         }
3866         folder_item_prefs_read_config(item);
3867
3868         return item;
3869 }
3870
3871 static gboolean folder_item_set_node(GNode *node, gpointer data)
3872 {
3873         FolderItem *item = (FolderItem *) node->data;
3874         item->node = node;
3875
3876         return FALSE;
3877 }
3878
3879 static Folder *folder_get_from_xml(GNode *node)
3880 {
3881         Folder *folder;
3882         XMLNode *xmlnode;
3883         GList *list;
3884         FolderClass *klass = NULL;
3885         GNode *cur;
3886
3887         g_return_val_if_fail(node->data != NULL, NULL);
3888
3889         xmlnode = node->data;
3890         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
3891                 g_warning("tag name != \"folder\"\n");
3892                 return NULL;
3893         }
3894         list = xmlnode->tag->attr;
3895         for (; list != NULL; list = list->next) {
3896                 XMLAttr *attr = list->data;
3897
3898                 if (!attr || !attr->name || !attr->value) continue;
3899                 if (!strcmp(attr->name, "type"))
3900                         klass = folder_get_class_from_string(attr->value);
3901         }
3902         if (klass == NULL)
3903                 return NULL;
3904
3905         folder = folder_new(klass, "", "");
3906         g_return_val_if_fail(folder != NULL, NULL);
3907
3908         if (klass->set_xml)
3909                 klass->set_xml(folder, xmlnode->tag);
3910         else
3911                 folder_set_xml(folder, xmlnode->tag);
3912
3913         cur = node->children;
3914         while (cur != NULL) {
3915                 GNode *itemnode;
3916
3917                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
3918                 g_node_append(folder->node, itemnode);
3919                 cur = cur->next;
3920         }
3921         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
3922
3923         return folder;
3924 }
3925
3926 static gchar *folder_get_list_path(void)
3927 {
3928         static gchar *filename = NULL;
3929
3930         if (!filename)
3931                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3932                                         FOLDER_LIST, NULL);
3933
3934         return filename;
3935 }
3936
3937 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
3938 {
3939         FolderItem *item = (FolderItem *) nodedata;
3940         XMLTag *tag;
3941
3942         g_return_val_if_fail(item != NULL, NULL);
3943
3944         if (item->folder->klass->item_get_xml != NULL)
3945                 tag = item->folder->klass->item_get_xml(item->folder, item);
3946         else
3947                 tag = folder_item_get_xml(item->folder, item);
3948
3949         return xml_node_new(tag, NULL);
3950 }
3951
3952 static GNode *folder_get_xml_node(Folder *folder)
3953 {
3954         GNode *node;
3955         XMLNode *xmlnode;
3956         XMLTag *tag;
3957
3958         g_return_val_if_fail(folder != NULL, NULL);
3959
3960         if (folder->klass->get_xml != NULL)
3961                 tag = folder->klass->get_xml(folder);
3962         else
3963                 tag = folder_get_xml(folder);
3964
3965         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
3966
3967         xmlnode = xml_node_new(tag, NULL);
3968
3969         node = g_node_new(xmlnode);
3970
3971         g_return_val_if_fail (folder->node != NULL, NULL);
3972
3973         if (folder->node->children) {
3974                 GNode *cur;
3975
3976                 cur = folder->node->children;
3977                 while (cur) {
3978                         GNode *xmlnode;
3979
3980                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
3981                         g_node_append(node, xmlnode);
3982                         cur = cur->next;
3983                 }
3984         }
3985
3986         return node;
3987 }
3988
3989 static void folder_update_op_count_rec(GNode *node)
3990 {
3991         FolderItem *fitem = FOLDER_ITEM(node->data);
3992
3993         if (g_node_depth(node) > 0) {
3994                 if (fitem->op_count > 0) {
3995                         fitem->op_count = 0;
3996                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
3997                 }
3998                 if (node->children) {
3999                         GNode *child;
4000
4001                         child = node->children;
4002                         while (child) {
4003                                 GNode *cur;
4004
4005                                 cur = child;
4006                                 child = cur->next;
4007                                 folder_update_op_count_rec(cur);
4008                         }
4009                 }
4010         }
4011 }
4012
4013 void folder_update_op_count(void)
4014 {
4015         GList *cur;
4016         Folder *folder;
4017
4018         for (cur = folder_list; cur != NULL; cur = cur->next) {
4019                 folder = cur->data;
4020                 folder_update_op_count_rec(folder->node);
4021         }
4022 }
4023
4024 typedef struct _type_str {
4025         gchar * str;
4026         gint type;
4027 } type_str;
4028
4029
4030 /*
4031 static gchar * folder_item_get_tree_identifier(FolderItem * item)
4032 {
4033         if (item->parent != NULL) {
4034                 gchar * path;
4035                 gchar * id;
4036
4037                 path = folder_item_get_tree_identifier(item->parent);
4038                 if (path == NULL)
4039                         return NULL;
4040
4041                 id = g_strconcat(path, "/", item->name, NULL);
4042                 g_free(path);
4043
4044                 return id;
4045         }
4046         else {
4047                 return g_strconcat("/", item->name, NULL);
4048         }
4049 }
4050 */
4051
4052 /* CLAWS: temporary local folder for filtering */
4053 #define TEMP_FOLDER "TEMP_FOLDER"
4054 #define PROCESSING_FOLDER_ITEM "processing"
4055
4056 static FolderItem *processing_folder_item;
4057
4058 static void folder_create_processing_folder(void)
4059 {
4060         Folder *processing_folder;
4061         gchar      *tmpname;
4062
4063         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
4064                 gchar *tmppath;
4065
4066                 tmppath =
4067                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4068                                 "tempfolder", NULL);
4069                 processing_folder =
4070                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
4071                 g_free(tmppath);
4072         }
4073         g_assert(processing_folder != NULL);
4074
4075         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
4076         /* FIXME: [W32] The code below does not correctly merge
4077            relative filenames; there should be a function to handle
4078            this.  */
4079         if (!is_relative_filename(LOCAL_FOLDER(processing_folder)->rootpath))
4080                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
4081                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
4082                                       NULL);
4083         else
4084                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
4085                                       LOCAL_FOLDER(processing_folder)->rootpath,
4086                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
4087                                       NULL);
4088
4089         if (!is_dir_exist(tmpname)) {
4090                 debug_print("*TMP* creating %s\n", tmpname);
4091                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
4092                                                                                  processing_folder->node->data,
4093                                                                                  PROCESSING_FOLDER_ITEM);
4094         } else {
4095                 debug_print("*TMP* already created\n");
4096                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
4097                 g_assert(processing_folder_item);
4098                 folder_item_append(processing_folder->node->data, processing_folder_item);
4099         }
4100         g_assert(processing_folder_item != NULL);
4101         g_free(tmpname);
4102 }
4103
4104 FolderItem *folder_get_default_processing(void)
4105 {
4106         if (!processing_folder_item) {
4107                 folder_create_processing_folder();
4108         }
4109         return processing_folder_item;
4110 }
4111
4112 /* folder_persist_prefs_new() - return hash table with persistent
4113  * settings (and folder name as key).
4114  * (note that in claws other options are in the folder_item_prefs_RC
4115  * file, so those don't need to be included in PersistPref yet)
4116  */
4117 static GHashTable *folder_persist_prefs_new(Folder *folder)
4118 {
4119         GHashTable *pptable;
4120
4121         g_return_val_if_fail(folder, NULL);
4122         pptable = g_hash_table_new(g_str_hash, g_str_equal);
4123         folder_get_persist_prefs_recursive(folder->node, pptable);
4124         return pptable;
4125 }
4126
4127 static void folder_persist_prefs_free(GHashTable *pptable)
4128 {
4129         g_return_if_fail(pptable);
4130         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
4131         g_hash_table_destroy(pptable);
4132 }
4133
4134 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
4135 {
4136         if (pptable == NULL || name == NULL) return NULL;
4137         return g_hash_table_lookup(pptable, name);
4138 }
4139
4140 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
4141 {
4142         const PersistPrefs *pp;
4143         gchar *id = folder_item_get_identifier(item);
4144
4145         pp = folder_get_persist_prefs(pptable, id);
4146         g_free(id);
4147
4148         if (!pp) return;
4149
4150         /* CLAWS: since not all folder properties have been migrated to
4151          * folderlist.xml, we need to call the old stuff first before
4152          * setting things that apply both to Main and Claws. */
4153         folder_item_prefs_read_config(item);
4154
4155         item->collapsed = pp->collapsed;
4156         item->thread_collapsed = pp->thread_collapsed;
4157         item->threaded  = pp->threaded;
4158         item->ret_rcpt  = pp->ret_rcpt;
4159         item->hide_read_msgs = pp->hide_read_msgs;
4160         item->sort_key  = pp->sort_key;
4161         item->sort_type = pp->sort_type;
4162 }
4163
4164 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
4165 {
4166         FolderItem *item = FOLDER_ITEM(node->data);
4167         PersistPrefs *pp;
4168         GNode *child, *cur;
4169         gchar *id;
4170
4171         g_return_if_fail(node != NULL);
4172         g_return_if_fail(item != NULL);
4173
4174         /* NOTE: item->path == NULL means top level folder; not interesting
4175          * to store preferences of that one.  */
4176         if (item->path) {
4177                 id = folder_item_get_identifier(item);
4178                 pp = g_new0(PersistPrefs, 1);
4179                 g_return_if_fail(pp != NULL);
4180                 pp->collapsed = item->collapsed;
4181                 pp->thread_collapsed = item->thread_collapsed;
4182                 pp->threaded  = item->threaded;
4183                 pp->ret_rcpt  = item->ret_rcpt;
4184                 pp->hide_read_msgs = item->hide_read_msgs;
4185                 pp->sort_key  = item->sort_key;
4186                 pp->sort_type = item->sort_type;
4187                 g_hash_table_insert(pptable, id, pp);
4188         }
4189
4190         if (node->children) {
4191                 child = node->children;
4192                 while (child) {
4193                         cur = child;
4194                         child = cur->next;
4195                         folder_get_persist_prefs_recursive(cur, pptable);
4196                 }
4197         }
4198 }
4199
4200 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
4201 {
4202         g_free(key);
4203         g_free(val);
4204         return TRUE;
4205 }
4206
4207 void folder_item_apply_processing(FolderItem *item)
4208 {
4209         GSList *processing_list;
4210         GSList *mlist, *cur;
4211         guint total = 0, curmsg = 0;
4212         gint last_apply_per_account;
4213
4214         g_return_if_fail(item != NULL);
4215
4216         if (item->no_select)
4217                return;
4218
4219         processing_list = item->prefs->processing;
4220
4221         if (!pre_global_processing && !processing_list
4222         &&  !post_global_processing)
4223                 return;
4224
4225         debug_print("processing %s\n", item->name);
4226         folder_item_update_freeze();
4227
4228         inc_lock();
4229
4230         mlist = folder_item_get_msg_list(item);
4231         total = g_slist_length(mlist);
4232         statusbar_print_all(_("Processing messages..."));
4233
4234         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
4235         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
4236
4237         folder_item_set_batch(item, TRUE);
4238         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4239                 MsgInfo * msginfo;
4240
4241                 msginfo = (MsgInfo *) cur->data;
4242
4243                 /* reset parameters that can be modified by processing */
4244                 msginfo->hidden = 0;
4245                 msginfo->score = 0;
4246
4247                 statusbar_progress_all(curmsg++,total, 10);
4248
4249                 /* apply pre global rules */
4250                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
4251                                 FILTERING_PRE_PROCESSING, NULL);
4252
4253                 /* apply rules of the folder */
4254                 filter_message_by_msginfo(processing_list, msginfo, NULL,
4255                                 FILTERING_FOLDER_PROCESSING, item->name);
4256
4257                 /* apply post global rules */
4258                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
4259                                 FILTERING_POST_PROCESSING, NULL);
4260                 if (curmsg % 1000 == 0)
4261                         GTK_EVENTS_FLUSH();
4262         }
4263         folder_item_set_batch(item, FALSE);
4264
4265         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
4266
4267         if (pre_global_processing || processing_list
4268             || post_global_processing)
4269                 filtering_move_and_copy_msgs(mlist);
4270         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4271                 MsgInfo * msginfo = (MsgInfo *)cur->data;
4272                 procmsg_msginfo_free(msginfo);
4273         }
4274         g_slist_free(mlist);
4275
4276         statusbar_progress_all(0,0,0);
4277         statusbar_pop_all();
4278
4279         inc_unlock();
4280
4281         folder_item_update_thaw();
4282 }
4283
4284 /*
4285  *  functions for handling FolderItem content changes
4286  */
4287 static gint folder_item_update_freeze_cnt = 0;
4288
4289 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
4290 {
4291         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
4292                 FolderItemUpdateData source;
4293
4294                 source.item = item;
4295                 source.update_flags = update_flags;
4296                 source.msg = msg;
4297                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4298         } else {
4299                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
4300         }
4301 }
4302
4303 /**
4304  * Notify the folder system about changes to a folder. If the
4305  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
4306  * be invoked, otherwise the changes will be remebered until
4307  * the folder system is thawed.
4308  *
4309  * \param item The FolderItem that was changed
4310  * \param update_flags Type of changed that was made
4311  */
4312 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
4313 {
4314         folder_item_update_with_msg(item, update_flags, NULL);
4315 }
4316
4317 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
4318 {
4319         GNode *node = item->folder->node;
4320
4321         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
4322         node = node->children;
4323
4324         folder_item_update(item, update_flags);
4325         while (node != NULL) {
4326                 if (node && node->data) {
4327                         FolderItem *next_item = (FolderItem*) node->data;
4328
4329                         folder_item_update(next_item, update_flags);
4330                 }
4331                 node = node->next;
4332         }
4333 }
4334
4335 void folder_item_update_freeze(void)
4336 {
4337         folder_item_update_freeze_cnt++;
4338 }
4339
4340 static void folder_item_update_func(FolderItem *item, gpointer data)
4341 {
4342         FolderItemUpdateData source;
4343
4344         if (item->update_flags) {
4345                 source.item = item;
4346                 source.update_flags = item->update_flags;
4347                 source.msg = NULL;
4348                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4349                 item->update_flags = 0;
4350         }
4351 }
4352
4353 void folder_item_update_thaw(void)
4354 {
4355         if (folder_item_update_freeze_cnt > 0)
4356                 folder_item_update_freeze_cnt--;
4357         if (folder_item_update_freeze_cnt == 0) {
4358                 /* Update all folders */
4359                 folder_func_to_all_folders(folder_item_update_func, NULL);
4360         }
4361 }
4362
4363 void folder_item_synchronise(FolderItem *item)
4364 {
4365         if (!item)
4366                 return;
4367         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4368                 statuswindow_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4369                 item->folder->klass->synchronise(item,
4370                         item->prefs->offlinesync_days);
4371                 if (item->prefs->offlinesync_days > 0 &&
4372                     item->prefs->remove_old_bodies)
4373                         folder_item_clean_local_files(item, item->prefs->offlinesync_days);
4374                 statuswindow_pop_all();
4375         }
4376 }
4377
4378 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4379 {
4380         Folder *folder = (Folder *)data;
4381         if (folder == NULL || item->folder == folder) {
4382                 folder_item_synchronise(item);
4383         }
4384 }
4385
4386 void folder_synchronise(Folder *folder)
4387 {
4388         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4389 }
4390
4391 typedef struct _WantSyncData {
4392         Folder *folder;
4393         gboolean want_sync;
4394 } WantSyncData;
4395
4396 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4397 {
4398         WantSyncData *want_sync_data = (WantSyncData *)data;
4399
4400         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4401                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4402                         want_sync_data->want_sync |= TRUE;
4403         }
4404 }
4405
4406 gboolean folder_want_synchronise(Folder *folder)
4407 {
4408         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4409         gboolean result;
4410         want_sync_data->folder = folder;
4411         want_sync_data->want_sync = FALSE;
4412
4413         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4414         result = want_sync_data->want_sync;
4415         g_free(want_sync_data);
4416         if (result > 0)
4417                 debug_print("Folder %s wants sync\n", folder->name);
4418         return result;
4419 }
4420
4421 void folder_item_set_batch (FolderItem *item, gboolean batch)
4422 {
4423         if (!item || !item->folder)
4424                 return;
4425         if (item->folder->klass->set_batch) {
4426                 item->folder->klass->set_batch(item->folder, item, batch);
4427         }
4428 }
4429
4430 gboolean folder_has_parent_of_type(FolderItem *item,
4431                                           SpecialFolderItemType type)
4432 {
4433         FolderItem *cur = item;
4434
4435         /* if we already know it, make it short */
4436         if (item->parent_stype != -1) {
4437                 return (item->parent_stype == type);
4438         }
4439
4440         /* if we don't, find the type from the first possible parent,
4441          * and set our parent type to be faster next time */
4442         while (cur) {
4443                 if (cur->stype == type || cur->parent_stype == type) {
4444                         item->parent_stype = type;
4445                         return TRUE;
4446                 }
4447                 cur = folder_item_parent(cur);
4448         }
4449
4450         /* if we didn't match what was asked, we didn't return. If our
4451          * parent type is unknown, we may as well find it now to be faster
4452          * later. */
4453         if (item->parent_stype == -1) {
4454                 cur = item;
4455                 while (cur) {
4456                         /* here's an exception: Inbox subfolders are normal. */
4457                         if (item->parent_stype == -1 && cur->stype == F_INBOX
4458                         && item != cur) {
4459                                 item->parent_stype = F_NORMAL;
4460                                 break;
4461                         }
4462                         /* ah, we know this parent's parent's type, we may as
4463                          * well copy it instead of going up the full way */
4464                         if (cur->parent_stype != -1) {
4465                                 item->parent_stype = cur->parent_stype;
4466                                 break;
4467                         }
4468                         /* we found a parent that has a special type. That's
4469                          * our parent type. */
4470                         if (cur->stype != F_NORMAL) {
4471                                 cur->parent_stype = cur->stype;
4472                                 item->parent_stype = cur->stype;
4473                                 break;
4474                         }
4475                         /* if we didn't find anything, go up once more */
4476                         cur = folder_item_parent(cur);
4477                 }
4478                 /* as we still didn't find anything, our parents must all be
4479                  * normal. */
4480                 if (item->parent_stype == -1) {
4481                         item->parent_stype = F_NORMAL;
4482                 }
4483         }
4484         return FALSE;
4485 }
4486
4487 gboolean folder_subscribe (const gchar *uri)
4488 {
4489         GList *cur;
4490         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4491                 Folder *folder = (Folder *) cur->data;
4492
4493                 if (folder->klass->subscribe
4494                 &&  folder->klass->subscribe(folder, uri)) {
4495                         return TRUE;
4496                 }
4497         }
4498         return FALSE;
4499
4500 }
4501
4502 gboolean folder_get_sort_type           (Folder         *folder,
4503                                          FolderSortKey  *sort_key,
4504                                          FolderSortType *sort_type)
4505 {
4506         if (!folder || !sort_key || !sort_type)
4507                 return FALSE;
4508         if (folder->klass->get_sort_type == NULL)
4509                 return FALSE;
4510         folder->klass->get_sort_type(folder, sort_key, sort_type);
4511         return TRUE;
4512 }