src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33 #include <stdlib.h>
  34 #ifdef WIN32
  35 #include <w32lib.h>
  36 #endif
  37
  38 #include "folder.h"
  39 #include "session.h"
  40 #include "inc.h"
  41 #include "imap.h"
  42 #include "news.h"
  43 #include "mh.h"
  44 #include "utils.h"
  45 #include "xml.h"
  46 #include "codeconv.h"
  47 #include "prefs_gtk.h"
  48 #include "account.h"
  49 #include "filtering.h"
  50 #include "procheader.h"
  51 #include "hooks.h"
  52 #include "log.h"
  53 #include "folder_item_prefs.h"
  54 #include "remotefolder.h"
  55 #include "partial_download.h"
  56 #include "statusbar.h"
  57 #include "gtkutils.h"
  58 #include "timing.h"
  59
  60 /* Dependecies to be removed ?! */
  61 #include "prefs_common.h"
  62 #include "prefs_account.h"
  63
  64 /* Define possible missing constants for Windows. */
  65 #ifdef G_OS_WIN32
  66 # ifndef S_IRGRP
  67 # define S_IRGRP 0
  68 # define S_IWGRP 0
  69 # endif
  70 # ifndef S_IROTH
  71 # define S_IROTH 0
  72 # define S_IWOTH 0
  73 # endif
  74 #endif
  75
  76 static GList *folder_list = NULL;
  77 static GSList *class_list = NULL;
  78 static GSList *folder_unloaded_list = NULL;
  79
  80 void folder_init                (Folder         *folder,
  81                                  const gchar    *name);
  82
  83 static gchar *folder_get_list_path      (void);
  84 static GNode *folder_get_xml_node       (Folder         *folder);
  85 static Folder *folder_get_from_xml      (GNode          *node);
  86 static void folder_update_op_count_rec  (GNode          *node);
  87
  88
  89 static void folder_get_persist_prefs_recursive
  90                                         (GNode *node, GHashTable *pptable);
  91 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
  92 void folder_item_read_cache             (FolderItem *item);
  93 gboolean folder_item_free_cache         (FolderItem *item, gboolean force);
  94 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
  95 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
  96                                          MsgInfo *msg);
  97
  98 void folder_system_init(void)
  99 {
 100         folder_register_class(mh_get_class());
 101         folder_register_class(imap_get_class());
 102         folder_register_class(news_get_class());
 103 }
 104
 105 GSList *folder_get_class_list(void)
 106 {
 107         return class_list;
 108 }
 109
 110 void folder_register_class(FolderClass *klass)
 111 {
 112         GSList *xmllist, *cur;
 113
 114         debug_print("registering folder class %s\n", klass->idstr);
 115
 116         class_list = g_slist_append(class_list, klass);
 117
 118         xmllist = g_slist_copy(folder_unloaded_list);
 119         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
 120                 GNode *node = (GNode *) cur->data;
 121                 XMLNode *xmlnode = (XMLNode *) node->data;
 122                 GList *cur = xmlnode->tag->attr;
 123
 124                 for (; cur != NULL; cur = g_list_next(cur)) {
 125                         XMLAttr *attr = (XMLAttr *) cur->data;
 126
 127                         if (!attr || !attr->name || !attr->value) continue;
 128                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
 129                                 Folder *folder;
 130
 131                                 folder = folder_get_from_xml(node);
 132                                 folder_add(folder);
 133                                 folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
 134
 135                                 cur = NULL;
 136                                 continue;
 137                         }
 138                 }
 139         }
 140         g_slist_free(xmllist);
 141 }
 142
 143 void folder_unregister_class(FolderClass *klass)
 144 {
 145         GList *folderlist, *cur;
 146
 147         debug_print("unregistering folder class %s\n", klass->idstr);
 148
 149         class_list = g_slist_remove(class_list, klass);
 150
 151         folderlist = g_list_copy(folder_get_list());
 152         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
 153                 Folder *folder = (Folder *) cur->data;
 154
 155                 if (folder->klass == klass) {
 156                         GNode *xmlnode = folder_get_xml_node(folder);
 157                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
 158                         folder_destroy(folder);
 159                 }
 160         }
 161         g_list_free(folderlist);
 162 }
 163
 164 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
 165 {
 166         Folder *folder = NULL;
 167         FolderItem *item;
 168
 169         g_return_val_if_fail(klass != NULL, NULL);
 170
 171         name = name ? name : path;
 172         folder = klass->new_folder(name, path);
 173
 174         /* Create root folder item */
 175         item = folder_item_new(folder, name, NULL);
 176         if (item == NULL) {
 177                 return NULL;
 178         }
 179         item->folder = folder;
 180         folder->node = item->node = g_node_new(item);
 181         folder->data = NULL;
 182
 183         return folder;
 184 }
 185
 186 void folder_init(Folder *folder, const gchar *name)
 187 {
 188         g_return_if_fail(folder != NULL);
 189
 190         folder_set_name(folder, name);
 191
 192         /* Init folder data */
 193         folder->account = NULL;
 194         folder->sort = 0;
 195         folder->inbox = NULL;
 196         folder->outbox = NULL;
 197         folder->draft = NULL;
 198         folder->queue = NULL;
 199         folder->trash = NULL;
 200 }
 201
 202 void folder_destroy(Folder *folder)
 203 {
 204         g_return_if_fail(folder != NULL);
 205         g_return_if_fail(folder->klass->destroy_folder != NULL);
 206
 207         folder_remove(folder);
 208
 209         folder_tree_destroy(folder);
 210
 211         folder->klass->destroy_folder(folder);
 212
 213         g_free(folder->name);
 214         g_free(folder);
 215 }
 216
 217 void folder_set_xml(Folder *folder, XMLTag *tag)
 218 {
 219         GList *cur;
 220         FolderItem *rootitem = NULL;
 221
 222         if ((folder->node != NULL) && (folder->node->data != NULL))
 223                 rootitem = (FolderItem *) folder->node->data;
 224
 225         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 226                 XMLAttr *attr = (XMLAttr *) cur->data;
 227
 228                 if (!attr || !attr->name || !attr->value) continue;
 229                 if (!strcmp(attr->name, "name")) {
 230                         g_free(folder->name);
 231                         folder->name = g_strdup(attr->value);
 232                         if (rootitem != NULL) {
 233                                 g_free(rootitem->name);
 234                                 rootitem->name = g_strdup(attr->value);
 235                         }
 236                 } else if (!strcmp(attr->name, "account_id")) {
 237                         PrefsAccount *account;
 238
 239                         account = account_find_from_id(atoi(attr->value));
 240                         if (!account)
 241                                 g_warning("account_id: %s not found\n", attr->value);
 242                         else {
 243                                 folder->account = account;
 244                                 account->folder = folder;
 245                         }
 246                 } else if (!strcmp(attr->name, "collapsed")) {
 247                         if (rootitem != NULL)
 248                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
 249                 } else if (!strcmp(attr->name, "sort")) {
 250                         folder->sort = atoi(attr->value);
 251                 }
 252         }
 253 }
 254
 255 XMLTag *folder_get_xml(Folder *folder)
 256 {
 257         XMLTag *tag;
 258
 259         tag = xml_tag_new("folder");
 260
 261         if (folder->name)
 262                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
 263         if (folder->account)
 264                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
 265         if (folder->node && folder->node->data) {
 266                 FolderItem *rootitem = (FolderItem *) folder->node->data;
 267
 268                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
 269         }
 270         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
 271
 272         return tag;
 273 }
 274
 275 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
 276 {
 277         FolderItem *item = NULL;
 278
 279         g_return_val_if_fail(folder != NULL, NULL);
 280
 281         if (folder->klass->item_new) {
 282                 item = folder->klass->item_new(folder);
 283         } else {
 284                 item = g_new0(FolderItem, 1);
 285         }
 286
 287         g_return_val_if_fail(item != NULL, NULL);
 288
 289         item->stype = F_NORMAL;
 290         item->name = g_strdup(name);
 291         item->path = g_strdup(path);
 292         item->mtime = 0;
 293         item->new_msgs = 0;
 294         item->unread_msgs = 0;
 295         item->unreadmarked_msgs = 0;
 296         item->marked_msgs = 0;
 297         item->total_msgs = 0;
 298         item->last_num = -1;
 299         item->cache = NULL;
 300         item->no_sub = FALSE;
 301         item->no_select = FALSE;
 302         item->collapsed = FALSE;
 303         item->thread_collapsed = FALSE;
 304         item->threaded  = TRUE;
 305         item->ret_rcpt  = FALSE;
 306         item->opened    = FALSE;
 307         item->node = g_node_new(item);
 308         item->folder = NULL;
 309         item->account = NULL;
 310         item->apply_sub = FALSE;
 311         item->mark_queue = NULL;
 312         item->data = NULL;
 313         item->parent_stype = -1;
 314
 315         item->sort_key = SORT_BY_DATE;
 316         item->sort_type = SORT_ASCENDING;
 317
 318         item->prefs = folder_item_prefs_new();
 319
 320         return item;
 321 }
 322
 323 void folder_item_append(FolderItem *parent, FolderItem *item)
 324 {
 325         g_return_if_fail(parent != NULL);
 326         g_return_if_fail(parent->folder != NULL);
 327         g_return_if_fail(parent->node != NULL);
 328         g_return_if_fail(item != NULL);
 329
 330         item->folder = parent->folder;
 331         g_node_append(parent->node, item->node);
 332 }
 333
 334 void folder_item_remove(FolderItem *item)
 335 {
 336         GNode *node, *start_node;
 337         FolderUpdateData hookdata;
 338
 339         g_return_if_fail(item != NULL);
 340         g_return_if_fail(item->folder != NULL);
 341         g_return_if_fail(item->folder->node != NULL);
 342
 343         start_node = node = item->node;
 344
 345         node = item->folder->node;
 346
 347         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 348         node = node->children;
 349
 350         /* remove my children */
 351         while (node != NULL) {
 352                 if (node && node->data) {
 353                         FolderItem *sub_item = (FolderItem*) node->data;
 354                         node = node->next;
 355                         folder_item_remove(sub_item);
 356                 }
 357         }
 358
 359         /* remove myself */
 360         if (item->cache != NULL) {
 361                 msgcache_destroy(item->cache);
 362                 item->cache = NULL;
 363         }
 364
 365         hookdata.folder = item->folder;
 366         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
 367         hookdata.item = item;
 368         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 369
 370         node = start_node;
 371
 372         if (item->folder->node == node)
 373                 item->folder->node = NULL;
 374
 375         folder_item_destroy(item);
 376
 377         g_node_destroy(node);
 378 }
 379
 380 void folder_item_remove_children(FolderItem *item)
 381 {
 382         GNode *node, *next;
 383
 384         g_return_if_fail(item != NULL);
 385         g_return_if_fail(item->folder != NULL);
 386         g_return_if_fail(item->node != NULL);
 387
 388         node = item->node->children;
 389         while (node != NULL) {
 390                 next = node->next;
 391                 folder_item_remove(FOLDER_ITEM(node->data));
 392                 node = next;
 393         }
 394 }
 395
 396 void folder_item_destroy(FolderItem *item)
 397 {
 398         Folder *folder;
 399
 400         g_return_if_fail(item != NULL);
 401
 402         folder = item->folder;
 403         if (folder) {
 404                 if (folder->inbox == item)
 405                         folder->inbox = NULL;
 406                 else if (folder->outbox == item)
 407                         folder->outbox = NULL;
 408                 else if (folder->draft == item)
 409                         folder->draft = NULL;
 410                 else if (folder->queue == item)
 411                         folder->queue = NULL;
 412                 else if (folder->trash == item)
 413                         folder->trash = NULL;
 414         }
 415
 416         if (item->cache)
 417                 folder_item_free_cache(item, TRUE);
 418         if (item->prefs)
 419                 folder_item_prefs_free(item->prefs);
 420         g_free(item->name);
 421         g_free(item->path);
 422
 423         if (item->folder != NULL) {
 424                 if(item->folder->klass->item_destroy) {
 425                         item->folder->klass->item_destroy(item->folder, item);
 426                 } else {
 427                         g_free(item);
 428                 }
 429         }
 430 }
 431
 432 FolderItem *folder_item_parent(FolderItem *item)
 433 {
 434         g_return_val_if_fail(item != NULL, NULL);
 435         g_return_val_if_fail(item->node != NULL, NULL);
 436
 437         if (item->node->parent == NULL)
 438                 return NULL;
 439         return (FolderItem *) item->node->parent->data;
 440 }
 441
 442 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 443 {
 444         GList *cur;
 445
 446         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 447                 XMLAttr *attr = (XMLAttr *) cur->data;
 448
 449                 if (!attr || !attr->name || !attr->value) continue;
 450                 if (!strcmp(attr->name, "type")) {
 451                         if (!g_ascii_strcasecmp(attr->value, "normal"))
 452                                 item->stype = F_NORMAL;
 453                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
 454                                 item->stype = F_INBOX;
 455                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
 456                                 item->stype = F_OUTBOX;
 457                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
 458                                 item->stype = F_DRAFT;
 459                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
 460                                 item->stype = F_QUEUE;
 461                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
 462                                 item->stype = F_TRASH;
 463                 } else if (!strcmp(attr->name, "name")) {
 464                         g_free(item->name);
 465                         item->name = g_strdup(attr->value);
 466                 } else if (!strcmp(attr->name, "path")) {
 467                         g_free(item->path);
 468                         item->path = g_strdup(attr->value);
 469                 } else if (!strcmp(attr->name, "mtime"))
 470                         item->mtime = strtoul(attr->value, NULL, 10);
 471                 else if (!strcmp(attr->name, "new"))
 472                         item->new_msgs = atoi(attr->value);
 473                 else if (!strcmp(attr->name, "unread"))
 474                         item->unread_msgs = atoi(attr->value);
 475                 else if (!strcmp(attr->name, "unreadmarked"))
 476                         item->unreadmarked_msgs = atoi(attr->value);
 477                 else if (!strcmp(attr->name, "marked"))
 478                         item->marked_msgs = atoi(attr->value);
 479                 else if (!strcmp(attr->name, "total"))
 480                         item->total_msgs = atoi(attr->value);
 481                 else if (!strcmp(attr->name, "no_sub"))
 482                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
 483                 else if (!strcmp(attr->name, "no_select"))
 484                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
 485                 else if (!strcmp(attr->name, "collapsed"))
 486                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
 487                 else if (!strcmp(attr->name, "thread_collapsed"))
 488                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
 489                 else if (!strcmp(attr->name, "threaded"))
 490                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
 491                 else if (!strcmp(attr->name, "hidereadmsgs"))
 492                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
 493                 else if (!strcmp(attr->name, "reqretrcpt"))
 494                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
 495                 else if (!strcmp(attr->name, "sort_key")) {
 496                         if (!strcmp(attr->value, "none"))
 497                                 item->sort_key = SORT_BY_NONE;
 498                         else if (!strcmp(attr->value, "number"))
 499                                 item->sort_key = SORT_BY_NUMBER;
 500                         else if (!strcmp(attr->value, "size"))
 501                                 item->sort_key = SORT_BY_SIZE;
 502                         else if (!strcmp(attr->value, "date"))
 503                                 item->sort_key = SORT_BY_DATE;
 504                         else if (!strcmp(attr->value, "from"))
 505                                 item->sort_key = SORT_BY_FROM;
 506                         else if (!strcmp(attr->value, "subject"))
 507                                 item->sort_key = SORT_BY_SUBJECT;
 508                         else if (!strcmp(attr->value, "score"))
 509                                 item->sort_key = SORT_BY_SCORE;
 510                         else if (!strcmp(attr->value, "label"))
 511                                 item->sort_key = SORT_BY_LABEL;
 512                         else if (!strcmp(attr->value, "mark"))
 513                                 item->sort_key = SORT_BY_MARK;
 514                         else if (!strcmp(attr->value, "unread"))
 515                                 item->sort_key = SORT_BY_STATUS;
 516                         else if (!strcmp(attr->value, "mime"))
 517                                 item->sort_key = SORT_BY_MIME;
 518                         else if (!strcmp(attr->value, "to"))
 519                                 item->sort_key = SORT_BY_TO;
 520                         else if (!strcmp(attr->value, "locked"))
 521                                 item->sort_key = SORT_BY_LOCKED;
 522                 } else if (!strcmp(attr->name, "sort_type")) {
 523                         if (!strcmp(attr->value, "ascending"))
 524                                 item->sort_type = SORT_ASCENDING;
 525                         else
 526                                 item->sort_type = SORT_DESCENDING;
 527                 } else if (!strcmp(attr->name, "account_id")) {
 528                         PrefsAccount *account;
 529
 530                         account = account_find_from_id(atoi(attr->value));
 531                         if (!account)
 532                                 g_warning("account_id: %s not found\n", attr->value);
 533                         else
 534                                 item->account = account;
 535                 } else if (!strcmp(attr->name, "apply_sub"))
 536                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
 537         }
 538 }
 539
 540 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
 541 {
 542         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 543                                                  "draft", "queue", "trash"};
 544         static gchar *sort_key_str[] = {"none", "number", "size", "date",
 545                                         "from", "subject", "score", "label",
 546                                         "mark", "unread", "mime", "to",
 547                                         "locked"};
 548         XMLTag *tag;
 549         gchar *value;
 550
 551         tag = xml_tag_new("folderitem");
 552
 553         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
 554         if (item->name)
 555                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
 556         if (item->path)
 557                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
 558         if (item->no_sub)
 559                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
 560         if (item->no_select)
 561                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
 562         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
 563         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
 564         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
 565         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
 566         if (item->ret_rcpt)
 567                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
 568
 569         if (item->sort_key != SORT_BY_NONE) {
 570                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
 571                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
 572         }
 573
 574         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
 575         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
 576         g_free(value);
 577         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
 578         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
 579         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
 580         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
 581         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
 582
 583         if (item->account)
 584                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
 585         if (item->apply_sub)
 586                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
 587
 588         return tag;
 589 }
 590
 591 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 592 {
 593         g_return_if_fail(folder != NULL);
 594
 595         folder->ui_func = func;
 596         folder->ui_func_data = data;
 597 }
 598
 599 void folder_set_name(Folder *folder, const gchar *name)
 600 {
 601         g_return_if_fail(folder != NULL);
 602
 603         g_free(folder->name);
 604         folder->name = name ? g_strdup(name) : NULL;
 605         if (folder->node && folder->node->data) {
 606                 FolderItem *item = (FolderItem *)folder->node->data;
 607
 608                 g_free(item->name);
 609                 item->name = name ? g_strdup(name) : NULL;
 610         }
 611 }
 612
 613 void folder_set_sort(Folder *folder, guint sort)
 614 {
 615         g_return_if_fail(folder != NULL);
 616
 617         if (folder->sort != sort) {
 618                 folder_remove(folder);
 619                 folder->sort = sort;
 620                 folder_add(folder);
 621         }
 622 }
 623
 624 gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
 625         FolderItem *item = (FolderItem *) node->data;
 626
 627         folder_item_destroy(item);
 628         return FALSE;
 629 }
 630
 631 void folder_tree_destroy(Folder *folder)
 632 {
 633         GNode *node;
 634
 635         g_return_if_fail(folder != NULL);
 636
 637         node = folder->node;
 638
 639         prefs_filtering_clear_folder(folder);
 640
 641         if (node != NULL) {
 642                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 643                                 folder_tree_destroy_func, NULL);
 644                 g_node_destroy(node);
 645                 folder->node = NULL;
 646         }
 647 }
 648
 649 void folder_add(Folder *folder)
 650 {
 651         Folder *cur_folder;
 652         GList *cur;
 653         gint i;
 654         FolderUpdateData hookdata;
 655
 656         g_return_if_fail(folder != NULL);
 657
 658         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 659                 cur_folder = FOLDER(cur->data);
 660                 if (cur_folder->sort < folder->sort)
 661                         break;
 662         }
 663
 664         folder_list = g_list_insert(folder_list, folder, i);
 665
 666         hookdata.folder = folder;
 667         hookdata.update_flags = FOLDER_ADD_FOLDER;
 668         hookdata.item = NULL;
 669         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 670 }
 671
 672 void folder_remove(Folder *folder)
 673 {
 674         FolderUpdateData hookdata;
 675
 676         g_return_if_fail(folder != NULL);
 677
 678         folder_list = g_list_remove(folder_list, folder);
 679
 680         hookdata.folder = folder;
 681         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
 682         hookdata.item = NULL;
 683         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 684 }
 685
 686 GList *folder_get_list(void)
 687 {
 688         return folder_list;
 689 }
 690
 691 gint folder_read_list(void)
 692 {
 693         GNode *node, *cur;
 694         XMLNode *xmlnode;
 695         gchar *path;
 696
 697         path = folder_get_list_path();
 698         if (!is_file_exist(path)) return -1;
 699         node = xml_parse_file(path);
 700         if (!node) return -1;
 701
 702         xmlnode = node->data;
 703         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 704                 g_warning("wrong folder list\n");
 705                 xml_free_tree(node);
 706                 return -1;
 707         }
 708
 709         cur = node->children;
 710         while (cur != NULL) {
 711                 Folder *folder;
 712
 713                 folder = folder_get_from_xml(cur);
 714                 if (folder != NULL)
 715                         folder_add(folder);
 716                 else
 717                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
 718                                 (gpointer) xml_copy_tree(cur));
 719                 cur = cur->next;
 720         }
 721
 722         xml_free_tree(node);
 723         if (folder_list || folder_unloaded_list)
 724                 return 0;
 725         else
 726                 return -1;
 727 }
 728
 729 void folder_write_list(void)
 730 {
 731         GList *list;
 732         GSList *slist;
 733         Folder *folder;
 734         gchar *path;
 735         PrefFile *pfile;
 736         GNode *rootnode;
 737         XMLNode *xmlnode;
 738         XMLTag *tag;
 739
 740         path = folder_get_list_path();
 741         if ((pfile = prefs_write_open(path)) == NULL) return;
 742
 743         xml_file_put_xml_decl(pfile->fp);
 744         tag = xml_tag_new("folderlist");
 745
 746         xmlnode = xml_node_new(tag, NULL);
 747
 748         rootnode = g_node_new(xmlnode);
 749
 750         for (list = folder_list; list != NULL; list = list->next) {
 751                 GNode *node;
 752
 753                 folder = list->data;
 754                 node = folder_get_xml_node(folder);
 755                 if (node != NULL)
 756                         g_node_append(rootnode, node);
 757         }
 758
 759         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
 760                 GNode *node = (GNode *) slist->data;
 761
 762                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
 763         }
 764
 765         xml_write_tree(rootnode, pfile->fp);
 766
 767         if (prefs_file_close(pfile) < 0)
 768                 g_warning("failed to write folder list.\n");
 769
 770         xml_free_tree(rootnode);
 771 }
 772
 773 gboolean folder_scan_tree_func(GNode *node, gpointer data)
 774 {
 775         GHashTable *pptable = (GHashTable *)data;
 776         FolderItem *item = (FolderItem *)node->data;
 777
 778         folder_item_restore_persist_prefs(item, pptable);
 779         folder_item_scan_full(item, FALSE);
 780
 781         return FALSE;
 782 }
 783
 784 void folder_scan_tree(Folder *folder, gboolean rebuild)
 785 {
 786         GHashTable *pptable;
 787         FolderUpdateData hookdata;
 788
 789         if (!folder->klass->scan_tree)
 790                 return;
 791
 792         pptable = folder_persist_prefs_new(folder);
 793
 794         if (rebuild)
 795                 folder_tree_destroy(folder);
 796
 797         folder->klass->scan_tree(folder);
 798
 799         hookdata.folder = folder;
 800         hookdata.update_flags = FOLDER_TREE_CHANGED;
 801         hookdata.item = NULL;
 802         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 803
 804         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
 805         folder_persist_prefs_free(pptable);
 806
 807         prefs_matcher_read_config();
 808
 809         folder_write_list();
 810 }
 811
 812 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
 813 {
 814         FolderItem *new_item;
 815
 816         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
 817         if (new_item) {
 818                 FolderUpdateData hookdata;
 819
 820                 new_item->cache = msgcache_new();
 821
 822                 hookdata.folder = new_item->folder;
 823                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
 824                 hookdata.item = new_item;
 825                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
 826         }
 827
 828         return new_item;
 829 }
 830
 831 gint folder_item_rename(FolderItem *item, gchar *newname)
 832 {
 833         gint retval;
 834
 835         g_return_val_if_fail(item != NULL, -1);
 836         g_return_val_if_fail(newname != NULL, -1);
 837
 838         retval = item->folder->klass->rename_folder(item->folder, item, newname);
 839
 840         if (retval >= 0) {
 841                 FolderItemUpdateData hookdata;
 842                 FolderUpdateData hookdata2;
 843
 844                 hookdata.item = item;
 845                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
 846                 hookdata.msg = NULL;
 847                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
 848
 849                 hookdata2.folder = item->folder;
 850                 hookdata2.item = item;
 851                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
 852                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
 853         }
 854
 855         return retval;
 856 }
 857
 858 struct TotalMsgCount
 859 {
 860         guint new_msgs;
 861         guint unread_msgs;
 862         guint unreadmarked_msgs;
 863         guint marked_msgs;
 864         guint total_msgs;
 865 };
 866
 867 struct FuncToAllFoldersData
 868 {
 869         FolderItemFunc  function;
 870         gpointer        data;
 871 };
 872
 873 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
 874 {
 875         FolderItem *item;
 876         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
 877
 878         g_return_val_if_fail(node->data != NULL, FALSE);
 879
 880         item = FOLDER_ITEM(node->data);
 881         g_return_val_if_fail(item != NULL, FALSE);
 882
 883         function_data->function(item, function_data->data);
 884
 885         return FALSE;
 886 }
 887
 888 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
 889 {
 890         GList *list;
 891         Folder *folder;
 892         struct FuncToAllFoldersData function_data;
 893
 894         function_data.function = function;
 895         function_data.data = data;
 896
 897         for (list = folder_list; list != NULL; list = list->next) {
 898                 folder = FOLDER(list->data);
 899                 if (folder->node)
 900                         g_node_traverse(folder->node, G_PRE_ORDER,
 901                                         G_TRAVERSE_ALL, -1,
 902                                         folder_func_to_all_folders_func,
 903                                         &function_data);
 904         }
 905 }
 906
 907 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
 908 {
 909         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
 910
 911         count->new_msgs += item->new_msgs;
 912         count->unread_msgs += item->unread_msgs;
 913         count->unreadmarked_msgs += item->unreadmarked_msgs;
 914         count->marked_msgs += item->marked_msgs;
 915         count->total_msgs += item->total_msgs;
 916 }
 917
 918 struct TotalMsgStatus
 919 {
 920         guint new;
 921         guint unread;
 922         guint total;
 923         GString *str;
 924 };
 925
 926 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
 927 {
 928         FolderItem *item;
 929         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
 930         gchar *id;
 931
 932         g_return_val_if_fail(node->data != NULL, FALSE);
 933
 934         item = FOLDER_ITEM(node->data);
 935
 936         if (!item->path) return FALSE;
 937
 938         status->new += item->new_msgs;
 939         status->unread += item->unread_msgs;
 940         status->total += item->total_msgs;
 941
 942         if (status->str) {
 943                 id = folder_item_get_identifier(item);
 944                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
 945                                   item->new_msgs, item->unread_msgs,
 946                                   item->total_msgs, id);
 947                 g_free(id);
 948         }
 949
 950         return FALSE;
 951  }
 952
 953 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
 954                                        guint *total)
 955 {
 956         GList *list;
 957         Folder *folder;
 958         struct TotalMsgStatus status;
 959
 960         status.new = status.unread = status.total = 0;
 961         status.str = str;
 962
 963         debug_print("Counting total number of messages...\n");
 964
 965         for (list = folder_list; list != NULL; list = list->next) {
 966                 folder = FOLDER(list->data);
 967                 if (folder->node)
 968                         g_node_traverse(folder->node, G_PRE_ORDER,
 969                                         G_TRAVERSE_ALL, -1,
 970                                         folder_get_status_full_all_func,
 971                                         &status);
 972         }
 973
 974         *new = status.new;
 975         *unread = status.unread;
 976         *total = status.total;
 977 }
 978
 979 gchar *folder_get_status(GPtrArray *folders, gboolean full)
 980 {
 981         guint new, unread, total;
 982         GString *str;
 983         gint i;
 984         gchar *ret;
 985
 986         new = unread = total = 0;
 987
 988         str = g_string_new(NULL);
 989
 990         if (folders) {
 991                 for (i = 0; i < folders->len; i++) {
 992                         FolderItem *item;
 993
 994                         item = g_ptr_array_index(folders, i);
 995                         new += item->new_msgs;
 996                         unread += item->unread_msgs;
 997                         total += item->total_msgs;
 998
 999                         if (full) {
1000                                 gchar *id;
1001
1002                                 id = folder_item_get_identifier(item);
1003                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1004                                                   item->new_msgs, item->unread_msgs,
1005                                                   item->total_msgs, id);
1006                                 g_free(id);
1007                         }
1008                 }
1009         } else {
1010                 folder_get_status_full_all(full ? str : NULL,
1011                                            &new, &unread, &total);
1012         }
1013
1014         if (full)
1015                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1016         else
1017                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1018
1019         ret = str->str;
1020         g_string_free(str, FALSE);
1021
1022         return ret;
1023 }
1024
1025 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs,
1026                              guint *unreadmarked_msgs, guint *marked_msgs,
1027                              guint *total_msgs)
1028 {
1029         struct TotalMsgCount count;
1030
1031         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = count.total_msgs = 0;
1032
1033         debug_print("Counting total number of messages...\n");
1034
1035         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1036
1037         *new_msgs = count.new_msgs;
1038         *unread_msgs = count.unread_msgs;
1039         *unreadmarked_msgs = count.unreadmarked_msgs;
1040         *marked_msgs = count.marked_msgs;
1041         *total_msgs = count.total_msgs;
1042 }
1043
1044 Folder *folder_find_from_path(const gchar *path)
1045 {
1046         GList *list;
1047         Folder *folder;
1048
1049         for (list = folder_list; list != NULL; list = list->next) {
1050                 folder = list->data;
1051                 if ((FOLDER_TYPE(folder) == F_MH ||
1052                      FOLDER_TYPE(folder) == F_MBOX) &&
1053                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1054                         return folder;
1055         }
1056
1057         return NULL;
1058 }
1059
1060 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1061 {
1062         GList *list;
1063         Folder *folder;
1064
1065         for (list = folder_list; list != NULL; list = list->next) {
1066                 folder = list->data;
1067                 if (folder->klass == klass &&
1068                     strcmp2(name, folder->name) == 0)
1069                         return folder;
1070         }
1071
1072         return NULL;
1073 }
1074
1075 static gboolean folder_item_find_func(GNode *node, gpointer data)
1076 {
1077         FolderItem *item = node->data;
1078         gpointer *d = data;
1079         const gchar *path = d[0];
1080
1081         if (path_cmp(path, item->path) != 0)
1082                 return FALSE;
1083
1084         d[1] = item;
1085
1086         return TRUE;
1087 }
1088
1089 FolderItem *folder_find_item_from_path(const gchar *path)
1090 {
1091         Folder *folder;
1092         gpointer d[2];
1093
1094         folder = folder_get_default_folder();
1095         g_return_val_if_fail(folder != NULL, NULL);
1096
1097         d[0] = (gpointer)path;
1098         d[1] = NULL;
1099         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1100                         folder_item_find_func, d);
1101         return d[1];
1102 }
1103
1104 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1105 {
1106         GNode *node;
1107         FolderItem *child;
1108
1109         for (node = item->node->children; node != NULL; node = node->next) {
1110                 gchar *base;
1111                 child = FOLDER_ITEM(node->data);
1112                 base = g_path_get_basename(child->path);
1113                 if (strcmp2(base, name) == 0) {
1114                         g_free(base);
1115                         return child;
1116                 }
1117                 g_free(base);
1118         }
1119
1120         return NULL;
1121 }
1122
1123 FolderClass *folder_get_class_from_string(const gchar *str)
1124 {
1125         GSList *classlist;
1126
1127         classlist = folder_get_class_list();
1128         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1129                 FolderClass *class = (FolderClass *) classlist->data;
1130                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1131                         return class;
1132         }
1133
1134         return NULL;
1135 }
1136
1137 gchar *folder_get_identifier(Folder *folder)
1138 {
1139         gchar *type_str;
1140
1141         g_return_val_if_fail(folder != NULL, NULL);
1142
1143         type_str = folder->klass->idstr;
1144         return g_strconcat("#", type_str, "/", folder->name, NULL);
1145 }
1146
1147 gchar *folder_item_get_identifier(FolderItem *item)
1148 {
1149         gchar *id = NULL;
1150         gchar *folder_id = NULL;
1151
1152         g_return_val_if_fail(item != NULL, NULL);
1153         g_return_val_if_fail(item->path != NULL, NULL);
1154
1155         folder_id = folder_get_identifier(item->folder);
1156         id = g_strconcat(folder_id, "/", item->path, NULL);
1157         g_free(folder_id);
1158
1159         return id;
1160 }
1161
1162 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1163 {
1164         Folder *folder;
1165         gpointer d[2];
1166         gchar *str;
1167         gchar *p;
1168         gchar *name;
1169         gchar *path;
1170         FolderClass *class;
1171
1172         g_return_val_if_fail(identifier != NULL, NULL);
1173
1174         if (*identifier != '#')
1175                 return folder_find_item_from_path(identifier);
1176
1177         Xstrdup_a(str, identifier, return NULL);
1178
1179         p = strchr(str, '/');
1180         if (!p)
1181                 return folder_find_item_from_path(identifier);
1182         *p = '\0';
1183         p++;
1184         class = folder_get_class_from_string(&str[1]);
1185         if (class == NULL)
1186                 return folder_find_item_from_path(identifier);
1187
1188         name = p;
1189         p = strchr(p, '/');
1190         if (!p)
1191                 return folder_find_item_from_path(identifier);
1192         *p = '\0';
1193         p++;
1194
1195         folder = folder_find_from_name(name, class);
1196         if (!folder)
1197                 return folder_find_item_from_path(identifier);
1198
1199         path = p;
1200
1201         d[0] = (gpointer)path;
1202         d[1] = NULL;
1203         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1204                         folder_item_find_func, d);
1205         return d[1];
1206 }
1207
1208 /**
1209  * Get a displayable name for a FolderItem
1210  *
1211  * \param item FolderItem for that a name should be created
1212  * \return Displayable name for item, returned string has to
1213  *         be freed
1214  */
1215 gchar *folder_item_get_name(FolderItem *item)
1216 {
1217         gchar *name = NULL;
1218
1219         g_return_val_if_fail(item != NULL, g_strdup(""));
1220
1221         switch (item->stype) {
1222         case F_INBOX:
1223                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1224                                 item->name);
1225                 break;
1226         case F_OUTBOX:
1227                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1228                                 item->name);
1229                 break;
1230         case F_QUEUE:
1231                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1232                                 item->name);
1233                 break;
1234         case F_TRASH:
1235                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1236                                 item->name);
1237                 break;
1238         case F_DRAFT:
1239                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1240                                 item->name);
1241                 break;
1242         default:
1243                 break;
1244         }
1245
1246         if (name == NULL) {
1247                 /*
1248                  * should probably be done by a virtual function,
1249                  * the folder knows the ui string and how to abbrev
1250                 */
1251                 if (folder_item_parent(item) == NULL) {
1252                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1253                 } else {
1254                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1255                             item->path && !strcmp2(item->name, item->path))
1256                                 name = get_abbrev_newsgroup_name
1257                                         (item->path,
1258                                          prefs_common.ng_abbrev_len);
1259                         else
1260                                 name = g_strdup(item->name);
1261                 }
1262         }
1263
1264         if (name == NULL)
1265                 name = g_strdup("");
1266
1267         return name;
1268 }
1269
1270 Folder *folder_get_default_folder(void)
1271 {
1272         return folder_list ? FOLDER(folder_list->data) : NULL;
1273 }
1274
1275 gboolean folder_have_mailbox (void)
1276 {
1277         GList *cur;
1278         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1279                 Folder *folder = FOLDER(cur->data);
1280                 if (folder->inbox && folder->outbox)
1281                         return TRUE;
1282         }
1283         return FALSE;
1284 }
1285
1286 FolderItem *folder_get_default_inbox(void)
1287 {
1288         GList *flist;
1289
1290         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1291                 Folder * folder = FOLDER(flist->data);
1292
1293                 if (folder == NULL)
1294                         continue;
1295                 if (folder->inbox == NULL)
1296                         continue;
1297
1298                 return folder->inbox;
1299         }
1300
1301         return NULL;
1302 }
1303
1304 FolderItem *folder_get_default_outbox(void)
1305 {
1306         GList *flist;
1307
1308         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1309                 Folder * folder = FOLDER(flist->data);
1310
1311                 if (folder == NULL)
1312                         continue;
1313                 if (folder->outbox == NULL)
1314                         continue;
1315
1316                 return folder->outbox;
1317         }
1318
1319         return NULL;
1320 }
1321
1322 FolderItem *folder_get_default_draft(void)
1323 {
1324         GList *flist;
1325
1326         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1327                 Folder * folder = FOLDER(flist->data);
1328
1329                 if (folder == NULL)
1330                         continue;
1331                 if (folder->draft == NULL)
1332                         continue;
1333
1334                 return folder->draft;
1335         }
1336
1337         return NULL;
1338 }
1339
1340 FolderItem *folder_get_default_queue(void)
1341 {
1342         GList *flist;
1343
1344         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1345                 Folder * folder = FOLDER(flist->data);
1346
1347                 if (folder == NULL)
1348                         continue;
1349                 if (folder->queue == NULL)
1350                         continue;
1351
1352                 return folder->queue;
1353         }
1354
1355         return NULL;
1356 }
1357
1358 FolderItem *folder_get_default_trash(void)
1359 {
1360         GList *flist;
1361
1362         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1363                 Folder * folder = FOLDER(flist->data);
1364
1365                 if (folder == NULL)
1366                         continue;
1367                 if (folder->trash == NULL)
1368                         continue;
1369
1370                 return folder->trash;
1371         }
1372
1373         return NULL;
1374 }
1375
1376 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1377 {                                                               \
1378         if (!folder->member) {                                  \
1379                 item = folder_item_new(folder, dir, dir);       \
1380                 item->stype = type;                             \
1381                 folder_item_append(rootitem, item);             \
1382                 folder->member = item;                          \
1383         }                                                       \
1384 }
1385
1386 void folder_set_missing_folders(void)
1387 {
1388         Folder *folder;
1389         FolderItem *rootitem;
1390         FolderItem *item;
1391         GList *list;
1392
1393         for (list = folder_list; list != NULL; list = list->next) {
1394                 folder = list->data;
1395                 if (FOLDER_TYPE(folder) != F_MH) continue;
1396                 rootitem = FOLDER_ITEM(folder->node->data);
1397                 g_return_if_fail(rootitem != NULL);
1398
1399                 if (folder->inbox && folder->outbox && folder->draft &&
1400                     folder->queue && folder->trash)
1401                         continue;
1402
1403                 if (folder->klass->create_tree(folder) < 0) {
1404                         g_warning("%s: can't create the folder tree.\n",
1405                                   LOCAL_FOLDER(folder)->rootpath);
1406                         continue;
1407                 }
1408
1409                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1410                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1411                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1412                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1413                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1414         }
1415 }
1416
1417 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1418 {
1419         FolderItem *item = node->data;
1420         PrefsAccount *account = data;
1421
1422         if (item->account == account)
1423                 item->account = NULL;
1424
1425         return FALSE;
1426 }
1427
1428 void folder_unref_account_all(PrefsAccount *account)
1429 {
1430         Folder *folder;
1431         GList *list;
1432
1433         if (!account) return;
1434
1435         for (list = folder_list; list != NULL; list = list->next) {
1436                 folder = list->data;
1437                 if (folder->account == account)
1438                         folder->account = NULL;
1439                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1440                                 folder_unref_account_func, account);
1441         }
1442 }
1443
1444 #undef CREATE_FOLDER_IF_NOT_EXIST
1445
1446 gchar *folder_item_get_path(FolderItem *item)
1447 {
1448         Folder *folder;
1449
1450         g_return_val_if_fail(item != NULL, NULL);
1451         folder = item->folder;
1452         g_return_val_if_fail(folder != NULL, NULL);
1453
1454         return folder->klass->item_get_path(folder, item);
1455 }
1456
1457 void folder_item_set_default_flags(FolderItem *dest, MsgFlags *flags)
1458 {
1459         if (!(folder_has_parent_of_type(dest, F_OUTBOX) ||
1460               folder_has_parent_of_type(dest, F_QUEUE)  ||
1461               folder_has_parent_of_type(dest, F_DRAFT) ||
1462               folder_has_parent_of_type(dest, F_TRASH))) {
1463                 flags->perm_flags = MSG_NEW|MSG_UNREAD;
1464         } else {
1465                 flags->perm_flags = 0;
1466         }
1467         if (FOLDER_TYPE(dest->folder) == F_MH) {
1468                 if (folder_has_parent_of_type(dest, F_QUEUE)) {
1469                         MSG_SET_TMP_FLAGS(*flags, MSG_QUEUED);
1470                 } else if (folder_has_parent_of_type(dest, F_DRAFT)) {
1471                         MSG_SET_TMP_FLAGS(*flags, MSG_DRAFT);
1472                 }
1473         }
1474 }
1475
1476 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1477 {
1478         MsgInfo *msginfo_a = (MsgInfo *) a;
1479         MsgInfo *msginfo_b = (MsgInfo *) b;
1480
1481         return (msginfo_a->msgnum - msginfo_b->msgnum);
1482 }
1483
1484 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1485 {
1486         guint gint_a = GPOINTER_TO_INT(a);
1487         guint gint_b = GPOINTER_TO_INT(b);
1488
1489         return (gint_a - gint_b);
1490 }
1491
1492 void folder_item_process_open (FolderItem *item,
1493                                  void (*before_proc_func)(gpointer data),
1494                                  void (*after_proc_func)(gpointer data),
1495                                  gpointer data)
1496 {
1497         gchar *buf;
1498         if (item == NULL)
1499                 return;
1500         if((item->folder->klass->scan_required != NULL) &&
1501            (item->folder->klass->scan_required(item->folder, item))) {
1502                 folder_item_scan_full(item, TRUE);
1503         } else {
1504                 folder_item_syncronize_flags(item);
1505         }
1506
1507         /* Processing */
1508         buf = g_strdup_printf(_("Processing (%s)...\n"),
1509                               item->path ? item->path : item->name);
1510         debug_print("%s\n", buf);
1511         g_free(buf);
1512
1513         if (before_proc_func)
1514                 before_proc_func(data);
1515
1516         folder_item_apply_processing(item);
1517
1518         if (after_proc_func)
1519                 after_proc_func(data);
1520
1521         debug_print("done.\n");
1522         item->processing_pending = FALSE;
1523         return;
1524 }
1525
1526 gint folder_item_open(FolderItem *item)
1527 {
1528         START_TIMING("folder_item_open");
1529         if (item->no_select)
1530                 return -1;
1531
1532         if (item->scanning) {
1533                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
1534                 return -2;
1535         }
1536
1537         item->processing_pending = TRUE;
1538         folder_item_process_open (item, NULL, NULL, NULL);
1539
1540         item->opened = TRUE;
1541         END_TIMING();
1542         return 0;
1543 }
1544
1545 gint folder_item_close(FolderItem *item)
1546 {
1547         GSList *mlist, *cur;
1548         Folder *folder;
1549
1550         g_return_val_if_fail(item != NULL, -1);
1551
1552         if (item->no_select)
1553                 return -1;
1554
1555         if (item->new_msgs) {
1556                 folder_item_update_freeze();
1557                 mlist = folder_item_get_msg_list(item);
1558                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1559                         MsgInfo * msginfo;
1560
1561                         msginfo = (MsgInfo *) cur->data;
1562                         if (MSG_IS_NEW(msginfo->flags))
1563                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1564                         procmsg_msginfo_free(msginfo);
1565                 }
1566                 g_slist_free(mlist);
1567                 folder_item_update_thaw();
1568         }
1569
1570         folder_item_write_cache(item);
1571
1572         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1573
1574         item->opened = FALSE;
1575         folder = item->folder;
1576
1577         if (folder->klass->close == NULL)
1578                 return 0;
1579
1580         return folder->klass->close(folder, item);
1581 }
1582
1583 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
1584 {
1585         MsgInfoList *msglist = NULL;
1586         Folder *folder = item->folder;
1587         if (item->no_select)
1588                 return NULL;
1589
1590         if (folder->klass->get_msginfos != NULL)
1591                 msglist = folder->klass->get_msginfos(folder, item, numlist);
1592         else {
1593                 MsgNumberList *elem;
1594
1595                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
1596                         MsgInfo *msginfo;
1597                         guint num;
1598
1599                         num = GPOINTER_TO_INT(elem->data);
1600                         msginfo = folder->klass->get_msginfo(folder, item, num);
1601                         if (msginfo != NULL)
1602                                 msglist = g_slist_prepend(msglist, msginfo);
1603                 }
1604         }
1605
1606         return msglist;
1607 }
1608
1609 static MsgInfo *get_msginfo(FolderItem *item, guint num)
1610 {
1611         MsgNumberList numlist;
1612         MsgInfoList *msglist;
1613         MsgInfo *msginfo = NULL;
1614
1615         numlist.data = GINT_TO_POINTER(num);
1616         numlist.next = NULL;
1617         msglist = get_msginfos(item, &numlist);
1618         if (msglist != NULL)
1619                 msginfo = procmsg_msginfo_new_ref(msglist->data);
1620         procmsg_msg_list_free(msglist);
1621
1622         return msginfo;
1623 }
1624
1625 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1626 {
1627         GRelation *relation;
1628         gint ret = 0;
1629         GSList *cur;
1630
1631         if(msglist == NULL)
1632                 return 0;
1633         if(item->folder->klass->get_flags == NULL)
1634                 return 0;
1635         if (item->no_select)
1636                 return 0;
1637
1638         relation = g_relation_new(2);
1639         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1640         folder_item_set_batch(item, TRUE);
1641         if ((ret = item->folder->klass->get_flags(
1642             item->folder, item, msglist, relation)) == 0) {
1643                 GTuples *tuples;
1644                 MsgInfo *msginfo;
1645                 MsgPermFlags permflags = 0;
1646                 gboolean skip;
1647
1648                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1649                         msginfo = (MsgInfo *) cur->data;
1650
1651                         tuples = g_relation_select(relation, msginfo, 0);
1652                         skip = tuples->len < 1;
1653                         if (!skip)
1654                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1655                         g_tuples_destroy(tuples);
1656                         if (skip)
1657                                 continue;
1658
1659                         if (msginfo->flags.perm_flags != permflags) {
1660                                 procmsg_msginfo_change_flags(msginfo,
1661                                         permflags & ~msginfo->flags.perm_flags, 0,
1662                                         ~permflags & msginfo->flags.perm_flags, 0);
1663                         }
1664                 }
1665         }
1666         folder_item_set_batch(item, FALSE);
1667         g_relation_destroy(relation);
1668
1669         return ret;
1670 }
1671
1672 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1673 {
1674         Folder *folder;
1675         GSList *folder_list = NULL, *cache_list = NULL;
1676         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1677         GSList *exists_list = NULL, *elem;
1678         GSList *newmsg_list = NULL;
1679         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
1680         guint markedcnt = 0, unreadmarkedcnt = 0;
1681         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1682         gboolean update_flags = 0, old_uids_valid = FALSE;
1683         GHashTable *subject_table = NULL;
1684
1685         g_return_val_if_fail(item != NULL, -1);
1686         if (item->path == NULL) return -1;
1687
1688         folder = item->folder;
1689
1690         g_return_val_if_fail(folder != NULL, -1);
1691         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1692
1693         item->scanning = TRUE;
1694
1695         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
1696
1697         /* Get list of messages for folder and cache */
1698         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1699                 debug_print("Error fetching list of message numbers\n");
1700                 item->scanning = FALSE;
1701                 return(-1);
1702         }
1703
1704         if(prefs_common.thread_by_subject) {
1705                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
1706         }
1707
1708         if (old_uids_valid) {
1709                 if (!item->cache)
1710                         folder_item_read_cache(item);
1711                 cache_list = msgcache_get_msg_list(item->cache);
1712         } else {
1713                 if (item->cache)
1714                         msgcache_destroy(item->cache);
1715                 item->cache = msgcache_new();
1716                 cache_list = NULL;
1717         }
1718
1719         /* Sort both lists */
1720         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
1721         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
1722
1723         cache_list_cur = cache_list;
1724         folder_list_cur = folder_list;
1725
1726         if (cache_list_cur != NULL) {
1727                 GSList *cache_list_last;
1728
1729                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1730                 cache_list_last = g_slist_last(cache_list);
1731                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
1732         } else {
1733                 cache_cur_num = G_MAXINT;
1734                 cache_max_num = 0;
1735         }
1736
1737         if (folder_list_cur != NULL) {
1738                 GSList *folder_list_last;
1739
1740                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1741                 folder_list_last = g_slist_last(folder_list);
1742                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
1743         } else {
1744                 folder_cur_num = G_MAXINT;
1745                 folder_max_num = 0;
1746         }
1747
1748         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
1749                 /*
1750                  *  Message only exists in the folder
1751                  *  Remember message for fetching
1752                  */
1753                 if (folder_cur_num < cache_cur_num) {
1754                         gboolean add = FALSE;
1755
1756                         switch(FOLDER_TYPE(folder)) {
1757                                 case F_NEWS:
1758                                         if (folder_cur_num < cache_max_num)
1759                                                 break;
1760
1761                                         if (folder->account->max_articles == 0) {
1762                                                 add = TRUE;
1763                                         }
1764
1765                                         if (folder_max_num <= folder->account->max_articles) {
1766                                                 add = TRUE;
1767                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
1768                                                 add = TRUE;
1769                                         }
1770                                         break;
1771                                 default:
1772                                         add = TRUE;
1773                                         break;
1774                         }
1775
1776                         if (add) {
1777                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
1778                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
1779                         }
1780
1781                         /* Move to next folder number */
1782                         folder_list_cur = folder_list_cur->next;
1783
1784                         if (folder_list_cur != NULL)
1785                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1786                         else
1787                                 folder_cur_num = G_MAXINT;
1788
1789                         continue;
1790                 }
1791
1792                 /*
1793                  *  Message only exists in the cache
1794                  *  Remove the message from the cache
1795                  */
1796                 if (cache_cur_num < folder_cur_num) {
1797                         msgcache_remove_msg(item->cache, cache_cur_num);
1798                         debug_print("Removed message %d from cache.\n", cache_cur_num);
1799
1800                         /* Move to next cache number */
1801                         cache_list_cur = cache_list_cur->next;
1802
1803                         if (cache_list_cur != NULL)
1804                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1805                         else
1806                                 cache_cur_num = G_MAXINT;
1807
1808                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1809
1810                         continue;
1811                 }
1812
1813                 /*
1814                  *  Message number exists in folder and cache!
1815                  *  Check if the message has been modified
1816                  */
1817                 if (cache_cur_num == folder_cur_num) {
1818                         MsgInfo *msginfo;
1819
1820                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
1821                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
1822                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
1823                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
1824                                 procmsg_msginfo_free(msginfo);
1825
1826                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
1827                         } else {
1828                                 exists_list = g_slist_prepend(exists_list, msginfo);
1829
1830                                 if(prefs_common.thread_by_subject &&
1831                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
1832                                         !subject_table_lookup(subject_table, msginfo->subject)) {
1833                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
1834                                 }
1835                         }
1836
1837                         /* Move to next folder and cache number */
1838                         cache_list_cur = cache_list_cur->next;
1839                         folder_list_cur = folder_list_cur->next;
1840
1841                         if (cache_list_cur != NULL)
1842                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1843                         else
1844                                 cache_cur_num = G_MAXINT;
1845
1846                         if (folder_list_cur != NULL)
1847                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1848                         else
1849                                 folder_cur_num = G_MAXINT;
1850
1851                         continue;
1852                 }
1853         }
1854
1855         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
1856                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
1857
1858         g_slist_free(cache_list);
1859         g_slist_free(folder_list);
1860
1861         if (new_list != NULL) {
1862                 GSList *tmp_list = NULL;
1863                 newmsg_list = get_msginfos(item, new_list);
1864                 g_slist_free(new_list);
1865                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
1866                 syncronize_flags(item, tmp_list);
1867                 g_slist_free(tmp_list);
1868         } else {
1869                 syncronize_flags(item, exists_list);
1870         }
1871
1872         folder_item_update_freeze();
1873         if (newmsg_list != NULL) {
1874                 GSList *elem, *to_filter = NULL;
1875                 int total = g_slist_length(newmsg_list), cur = 0;
1876
1877                 if ((filtering == TRUE) &&
1878                     (item->stype == F_INBOX) &&
1879                     (item->folder->account != NULL) &&
1880                     (item->folder->account->filter_on_recv))
1881                         statusbar_print_all(_("Filtering messages...\n"));
1882
1883                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
1884                         MsgInfo *msginfo = (MsgInfo *) elem->data;
1885
1886                         statusbar_progress_all(cur++,total, 10);
1887
1888                         msgcache_add_msg(item->cache, msginfo);
1889                         if ((filtering == TRUE) &&
1890                             (item->stype == F_INBOX) &&
1891                             (item->folder->account != NULL) &&
1892                             (item->folder->account->filter_on_recv) &&
1893                             procmsg_msginfo_filter(msginfo))
1894                                 to_filter = g_slist_prepend(to_filter, msginfo);
1895                         else {
1896                                 exists_list = g_slist_prepend(exists_list, msginfo);
1897
1898                                 if(prefs_common.thread_by_subject &&
1899                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
1900                                         !subject_table_lookup(subject_table, msginfo->subject)) {
1901                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
1902                                 }
1903                         }
1904                 }
1905                 filtering_move_and_copy_msgs(to_filter);
1906                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
1907                         MsgInfo *msginfo = (MsgInfo *)elem->data;
1908                         procmsg_msginfo_free(msginfo);
1909                 }
1910
1911                 g_slist_free(to_filter);
1912                 g_slist_free(newmsg_list);
1913
1914                 statusbar_progress_all(0,0,0);
1915                 statusbar_pop_all();
1916                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1917         }
1918
1919         folder_item_set_batch(item, TRUE);
1920         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
1921                 MsgInfo *msginfo, *parent_msginfo;
1922
1923                 msginfo = elem->data;
1924                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1925                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1926                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
1927                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
1928                 }
1929                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
1930                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
1931                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
1932                 {
1933                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
1934                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
1935                                                 MSG_NEW | MSG_UNREAD, 0);
1936                         }
1937                 }
1938                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
1939                      folder_has_parent_of_type(item, F_QUEUE)  ||
1940                      folder_has_parent_of_type(item, F_DRAFT)  ||
1941                      folder_has_parent_of_type(item, F_TRASH)) &&
1942                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1943                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1944                 if (MSG_IS_NEW(msginfo->flags))
1945                         newcnt++;
1946                 if (MSG_IS_UNREAD(msginfo->flags))
1947                         unreadcnt++;
1948                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
1949                         unreadmarkedcnt++;
1950                 if (MSG_IS_MARKED(msginfo->flags))
1951                         markedcnt++;
1952
1953                 totalcnt++;
1954
1955                 procmsg_msginfo_free(msginfo);
1956         }
1957         folder_item_set_batch(item, FALSE);
1958         g_slist_free(exists_list);
1959
1960         if(prefs_common.thread_by_subject) {
1961                 g_hash_table_destroy(subject_table);
1962         }
1963
1964         item->new_msgs = newcnt;
1965         item->unread_msgs = unreadcnt;
1966         item->total_msgs = totalcnt;
1967         item->unreadmarked_msgs = unreadmarkedcnt;
1968         item->marked_msgs = markedcnt;
1969
1970         update_flags |= F_ITEM_UPDATE_MSGCNT;
1971
1972         folder_item_update(item, update_flags);
1973         folder_item_update_thaw();
1974
1975         item->scanning = FALSE;
1976
1977         return 0;
1978 }
1979
1980 gint folder_item_scan(FolderItem *item)
1981 {
1982         return folder_item_scan_full(item, TRUE);
1983 }
1984
1985 static gboolean folder_scan_all_items_func(GNode *node, gpointer data)
1986 {
1987         FolderItem *item = node->data;
1988
1989         folder_item_scan(item);
1990
1991         return FALSE;
1992 }
1993
1994 void folder_scan_all_items(Folder * folder)
1995 {
1996         g_node_traverse(folder->node, G_PRE_ORDER,
1997                         G_TRAVERSE_ALL, -1, folder_scan_all_items_func, NULL);
1998 }
1999
2000 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
2001                                           gpointer data)
2002 {
2003         folder_item_scan(FOLDER_ITEM(key));
2004 }
2005
2006 void folder_item_scan_foreach(GHashTable *table)
2007 {
2008         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
2009 }
2010
2011 void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2012 {
2013         gint *memusage = (gint *)data;
2014
2015         if (item->cache == NULL)
2016                 return;
2017
2018         *memusage += msgcache_get_memory_usage(item->cache);
2019 }
2020
2021 gint folder_item_syncronize_flags(FolderItem *item)
2022 {
2023         MsgInfoList *msglist = NULL;
2024         GSList *cur;
2025         gint ret = 0;
2026
2027         g_return_val_if_fail(item != NULL, -1);
2028         g_return_val_if_fail(item->folder != NULL, -1);
2029         g_return_val_if_fail(item->folder->klass != NULL, -1);
2030         if (item->no_select)
2031                 return -1;
2032
2033         item->scanning = TRUE;
2034
2035         if (item->cache == NULL)
2036                 folder_item_read_cache(item);
2037
2038         msglist = msgcache_get_msg_list(item->cache);
2039
2040         ret = syncronize_flags(item, msglist);
2041
2042         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
2043                 procmsg_msginfo_free((MsgInfo *) cur->data);
2044
2045         g_slist_free(msglist);
2046
2047         item->scanning = FALSE;
2048
2049         return ret;
2050 }
2051
2052 gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2053 {
2054         FolderItem *fa = (FolderItem *)a;
2055         FolderItem *fb = (FolderItem *)b;
2056
2057         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2058 }
2059
2060 void folder_find_expired_caches(FolderItem *item, gpointer data)
2061 {
2062         GSList **folder_item_list = (GSList **)data;
2063         gint difftime, expiretime;
2064
2065         if (item->cache == NULL)
2066                 return;
2067
2068         if (item->opened > 0)
2069                 return;
2070
2071         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2072         expiretime = prefs_common.cache_min_keep_time * 60;
2073         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2074
2075         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2076                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2077         }
2078 }
2079
2080 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2081 {
2082         g_return_val_if_fail(item != NULL, TRUE);
2083
2084         if (item->cache == NULL)
2085                 return TRUE;
2086
2087         if (item->opened > 0 && !force)
2088                 return FALSE;
2089
2090         folder_item_write_cache(item);
2091         msgcache_destroy(item->cache);
2092         item->cache = NULL;
2093         return TRUE;
2094 }
2095
2096 void folder_clean_cache_memory_force(void)
2097 {
2098         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2099         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2100
2101         prefs_common.cache_max_mem_usage = 0;
2102         prefs_common.cache_min_keep_time = 0;
2103
2104         folder_clean_cache_memory(NULL);
2105
2106         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2107         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2108 }
2109
2110 void folder_clean_cache_memory(FolderItem *protected_item)
2111 {
2112         gint memusage = 0;
2113
2114         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);
2115         debug_print("Total cache memory usage: %d\n", memusage);
2116
2117         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2118                 GSList *folder_item_list = NULL, *listitem;
2119
2120                 debug_print("Trying to free cache memory\n");
2121
2122                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);
2123                 listitem = folder_item_list;
2124                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2125                         FolderItem *item = (FolderItem *)(listitem->data);
2126                         gint cache_size = 0;
2127                         if (item == protected_item) {
2128                                 listitem = listitem->next;
2129                                 continue;
2130                         }
2131                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2132                         cache_size = msgcache_get_memory_usage(item->cache);
2133                         if (folder_item_free_cache(item, FALSE))
2134                                 memusage -= cache_size;
2135
2136                         listitem = listitem->next;
2137                 }
2138                 g_slist_free(folder_item_list);
2139         }
2140 }
2141
2142 void folder_item_read_cache(FolderItem *item)
2143 {
2144         gchar *cache_file, *mark_file;
2145         START_TIMING("folder_item_read_cache");
2146         g_return_if_fail(item != NULL);
2147
2148         if (item->path != NULL) {
2149                 cache_file = folder_item_get_cache_file(item);
2150                 mark_file = folder_item_get_mark_file(item);
2151                 item->cache = msgcache_read_cache(item, cache_file);
2152                 if (!item->cache) {
2153                         MsgInfoList *list, *cur;
2154                         guint newcnt = 0, unreadcnt = 0;
2155                         guint markedcnt = 0, unreadmarkedcnt = 0;
2156                         MsgInfo *msginfo;
2157
2158                         item->cache = msgcache_new();
2159                         folder_item_scan_full(item, TRUE);
2160
2161                         msgcache_read_mark(item->cache, mark_file);
2162
2163                         list = msgcache_get_msg_list(item->cache);
2164                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2165                                 msginfo = cur->data;
2166
2167                                 if (MSG_IS_NEW(msginfo->flags))
2168                                         newcnt++;
2169                                 if (MSG_IS_UNREAD(msginfo->flags))
2170                                         unreadcnt++;
2171                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2172                                         unreadmarkedcnt++;
2173                                 if (MSG_IS_MARKED(msginfo->flags))
2174                                         markedcnt++;
2175                         }
2176                         item->new_msgs = newcnt;
2177                         item->unread_msgs = unreadcnt;
2178                         item->unreadmarked_msgs = unreadmarkedcnt;
2179                         item->marked_msgs = markedcnt;
2180                         procmsg_msg_list_free(list);
2181                 } else
2182                         msgcache_read_mark(item->cache, mark_file);
2183
2184                 g_free(cache_file);
2185                 g_free(mark_file);
2186         } else {
2187                 item->cache = msgcache_new();
2188         }
2189         END_TIMING();
2190         folder_clean_cache_memory(item);
2191 }
2192
2193 void folder_item_write_cache(FolderItem *item)
2194 {
2195         gchar *cache_file, *mark_file;
2196         FolderItemPrefs *prefs;
2197         gint filemode = 0;
2198         gchar *id;
2199
2200         if (!item || !item->path || !item->cache)
2201                 return;
2202
2203         id = folder_item_get_identifier(item);
2204         debug_print("Save cache for folder %s\n", id);
2205         g_free(id);
2206
2207         cache_file = folder_item_get_cache_file(item);
2208         mark_file = folder_item_get_mark_file(item);
2209         if (msgcache_write(cache_file, mark_file, item->cache) < 0) {
2210                 prefs = item->prefs;
2211                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2212                         /* for cache file */
2213                         filemode = prefs->folder_chmod;
2214                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2215                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2216                         chmod(cache_file, filemode);
2217                 }
2218         }
2219
2220         g_free(cache_file);
2221         g_free(mark_file);
2222 }
2223
2224 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2225 {
2226         Folder *folder;
2227         MsgInfo *msginfo = NULL;
2228
2229         g_return_val_if_fail(item != NULL, NULL);
2230         if (item->no_select)
2231                 return NULL;
2232         folder = item->folder;
2233         if (!item->cache)
2234                 folder_item_read_cache(item);
2235
2236         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2237                 return msginfo;
2238
2239         msginfo = get_msginfo(item, num);
2240         if (msginfo != NULL) {
2241                 msgcache_add_msg(item->cache, msginfo);
2242                 return msginfo;
2243         }
2244
2245         return NULL;
2246 }
2247
2248 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2249 {
2250         Folder *folder;
2251         MsgInfo *msginfo;
2252
2253         g_return_val_if_fail(item != NULL, NULL);
2254         g_return_val_if_fail(msgid != NULL, NULL);
2255         if (item->no_select)
2256                 return FALSE;
2257
2258         folder = item->folder;
2259         if (!item->cache)
2260                 folder_item_read_cache(item);
2261
2262         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2263                 return msginfo;
2264
2265         return NULL;
2266 }
2267
2268 GSList *folder_item_get_msg_list(FolderItem *item)
2269 {
2270         g_return_val_if_fail(item != NULL, NULL);
2271         if (item->no_select)
2272                 return FALSE;
2273
2274         if (item->cache == 0)
2275                 folder_item_read_cache(item);
2276
2277         g_return_val_if_fail(item->cache != NULL, NULL);
2278
2279         return msgcache_get_msg_list(item->cache);
2280 }
2281
2282 void msginfo_set_mime_flags(GNode *node, gpointer data)
2283 {
2284         MsgInfo *msginfo = data;
2285         MimeInfo *mimeinfo = node->data;
2286
2287         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2288          && (!mimeinfo->subtype ||  strcmp(mimeinfo->subtype, "pgp-signature"))) {
2289                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2290         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN &&
2291                  mimeinfo->type != MIMETYPE_TEXT &&
2292                  mimeinfo->type != MIMETYPE_MULTIPART) {
2293                 if (!mimeinfo->subtype
2294                 ||  strcmp(mimeinfo->subtype, "pgp-signature"))
2295                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2296         }
2297
2298         /* don't descend below top level message for signed and encrypted info */
2299         if (mimeinfo->type == MIMETYPE_MESSAGE)
2300                 return;
2301
2302         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2303                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2304         }
2305
2306         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2307                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2308         } else {
2309                 /* searching inside encrypted parts doesn't really make sense */
2310                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2311         }
2312 }
2313
2314 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2315 {
2316         Folder *folder;
2317         gchar *msgfile;
2318         MsgInfo *msginfo;
2319
2320         g_return_val_if_fail(item != NULL, NULL);
2321
2322         folder = item->folder;
2323
2324         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2325         if (item->no_select)
2326                 return NULL;
2327
2328         msgfile = folder->klass->fetch_msg(folder, item, num);
2329
2330         if (msgfile != NULL) {
2331                 msginfo = folder_item_get_msginfo(item, num);
2332                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2333                         MimeInfo *mimeinfo;
2334
2335                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2336                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2337                                 mimeinfo = procmime_scan_file(msgfile);
2338                         else
2339                                 mimeinfo = procmime_scan_queue_file(msgfile);
2340                         /* check for attachments */
2341                         if (mimeinfo != NULL) {
2342                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2343                                 procmime_mimeinfo_free_all(mimeinfo);
2344
2345                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2346                         }
2347                 }
2348                 procmsg_msginfo_free(msginfo);
2349         }
2350
2351         return msgfile;
2352 }
2353
2354 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2355                                   gboolean body)
2356 {
2357         Folder *folder;
2358         gchar *msgfile;
2359         MsgInfo *msginfo;
2360
2361         g_return_val_if_fail(item != NULL, NULL);
2362         if (item->no_select)
2363                 return NULL;
2364
2365         folder = item->folder;
2366
2367         if (folder->klass->fetch_msg_full == NULL)
2368                 return folder_item_fetch_msg(item, num);
2369
2370         msgfile = folder->klass->fetch_msg_full(folder, item, num,
2371                                                 headers, body);
2372
2373         if (msgfile != NULL) {
2374                 msginfo = folder_item_get_msginfo(item, num);
2375                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2376                         MimeInfo *mimeinfo;
2377
2378                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2379                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2380                                 mimeinfo = procmime_scan_file(msgfile);
2381                         else
2382                                 mimeinfo = procmime_scan_queue_file(msgfile);
2383                         /* check for attachments */
2384                         if (mimeinfo != NULL) {
2385                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2386                                 procmime_mimeinfo_free_all(mimeinfo);
2387
2388                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2389                         }
2390                 }
2391                 procmsg_msginfo_free(msginfo);
2392         }
2393
2394         return msgfile;
2395 }
2396
2397
2398 gint folder_item_fetch_all_msg(FolderItem *item)
2399 {
2400         Folder *folder;
2401         GSList *mlist;
2402         GSList *cur;
2403         gint num = 0;
2404         gint ret = 0;
2405         gint total = 0;
2406
2407         g_return_val_if_fail(item != NULL, -1);
2408         if (item->no_select)
2409                 return -1;
2410
2411         debug_print("fetching all messages in %s ...\n", item->path ? item->path : "(null)");
2412         statusbar_print_all(_("Fetching all messages in %s ...\n"), item->path ? item->path : "(null)");
2413
2414         folder = item->folder;
2415
2416         if (folder->ui_func)
2417                 folder->ui_func(folder, item, folder->ui_func_data ?
2418                                 folder->ui_func_data : GINT_TO_POINTER(num));
2419
2420         mlist = folder_item_get_msg_list(item);
2421
2422         total = g_slist_length(mlist);
2423
2424         for (cur = mlist; cur != NULL; cur = cur->next) {
2425                 MsgInfo *msginfo = (MsgInfo *)cur->data;
2426                 gchar *msg;
2427
2428                 statusbar_progress_all(num++,total, 10);
2429
2430                 if (folder->ui_func)
2431                         folder->ui_func(folder, item,
2432                                         folder->ui_func_data ?
2433                                         folder->ui_func_data :
2434                                         GINT_TO_POINTER(num));
2435
2436                 msg = folder_item_fetch_msg(item, msginfo->msgnum);
2437                 if (!msg) {
2438                         g_warning("Can't fetch message %d. Aborting.\n",
2439                                   msginfo->msgnum);
2440                         ret = -1;
2441                         break;
2442                 }
2443                 g_free(msg);
2444         }
2445
2446         statusbar_progress_all(0,0,0);
2447         statusbar_pop_all();
2448         procmsg_msg_list_free(mlist);
2449
2450         return ret;
2451 }
2452
2453 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2454 {
2455         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2456                                        {NULL,           NULL, FALSE}};
2457         FILE *fp;
2458         MsgInfo *msginfo;
2459         gint msgnum = 0;
2460         gchar buf[BUFFSIZE];
2461
2462         if ((fp = g_fopen(file, "rb")) == NULL)
2463                 return 0;
2464
2465         if ((folder_has_parent_of_type(dest, F_QUEUE)) ||
2466             (folder_has_parent_of_type(dest, F_DRAFT)))
2467                 while (fgets(buf, sizeof(buf), fp) != NULL)
2468                         if (buf[0] == '\r' || buf[0] == '\n') break;
2469
2470         procheader_get_header_fields(fp, hentry);
2471         if (hentry[0].body) {
2472                 extract_parenthesis(hentry[0].body, '<', '>');
2473                 remove_space(hentry[0].body);
2474                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2475                         msgnum = msginfo->msgnum;
2476                         procmsg_msginfo_free(msginfo);
2477
2478                         debug_print("found message as uid %d\n", msgnum);
2479                 }
2480         }
2481
2482         g_free(hentry[0].body);
2483         hentry[0].body = NULL;
2484         fclose(fp);
2485
2486         return msgnum;
2487 }
2488
2489 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2490 {
2491         MsgPermFlags perm_flags = 0;
2492         MsgTmpFlags tmp_flags = 0;
2493
2494         /* create new flags */
2495         if (source != NULL) {
2496                 /* copy original flags */
2497                 perm_flags = source->flags.perm_flags;
2498                 tmp_flags = source->flags.tmp_flags;
2499         } else {
2500                 perm_flags = dest->flags.perm_flags;
2501                 tmp_flags = dest->flags.tmp_flags;
2502         }
2503
2504         /* remove new, unread and deleted in special folders */
2505         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) ||
2506             folder_has_parent_of_type(dest->folder, F_QUEUE) ||
2507             folder_has_parent_of_type(dest->folder, F_DRAFT) ||
2508             folder_has_parent_of_type(dest->folder, F_TRASH))
2509                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
2510
2511         /* set ignore flag of ignored parent exists */
2512         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
2513                 perm_flags |= MSG_IGNORE_THREAD;
2514
2515         /* Unset tmp flags that should not be copied */
2516         tmp_flags &= ~(MSG_MOVE | MSG_COPY);
2517
2518         /* unset flags that are set but should not */
2519         /* and set new flags */
2520         procmsg_msginfo_change_flags(dest,
2521                                   ~dest->flags.perm_flags & perm_flags,
2522                                   ~dest->flags.tmp_flags  & tmp_flags,
2523                                    dest->flags.perm_flags & ~perm_flags,
2524                                    dest->flags.tmp_flags  & ~tmp_flags);
2525 }
2526
2527 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
2528 {
2529         /* update folder stats */
2530         if (MSG_IS_NEW(newmsginfo->flags))
2531                 item->new_msgs++;
2532         if (MSG_IS_UNREAD(newmsginfo->flags))
2533                 item->unread_msgs++;
2534         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
2535                 item->unreadmarked_msgs++;
2536         if (MSG_IS_MARKED(newmsginfo->flags))
2537                 item->marked_msgs++;
2538         item->total_msgs++;
2539
2540         folder_item_update_freeze();
2541
2542         if (!item->cache)
2543                 folder_item_read_cache(item);
2544
2545         msgcache_add_msg(item->cache, newmsginfo);
2546         copy_msginfo_flags(flagsource, newmsginfo);
2547         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
2548         folder_item_update_thaw();
2549 }
2550
2551 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
2552 {
2553         MsgInfoUpdate msginfo_update;
2554
2555         if (!item->cache)
2556                 folder_item_read_cache(item);
2557
2558         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2559                 msginfo->folder->new_msgs--;
2560         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2561                 msginfo->folder->unread_msgs--;
2562         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2563                 msginfo->folder->unreadmarked_msgs--;
2564         if (MSG_IS_MARKED(msginfo->flags))
2565                 item->marked_msgs--;
2566
2567         msginfo->folder->total_msgs--;
2568
2569         msginfo_update.msginfo = msginfo;
2570         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
2571         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2572
2573         msgcache_remove_msg(item->cache, msginfo->msgnum);
2574         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
2575 }
2576
2577 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
2578                          MsgFlags *flags, gboolean remove_source)
2579 {
2580         GSList file_list;
2581         MsgFileInfo fileinfo;
2582
2583         g_return_val_if_fail(dest != NULL, -1);
2584         g_return_val_if_fail(file != NULL, -1);
2585
2586         fileinfo.msginfo = NULL;
2587         fileinfo.file = (gchar *)file;
2588         fileinfo.flags = flags;
2589         file_list.data = &fileinfo;
2590         file_list.next = NULL;
2591
2592         return folder_item_add_msgs(dest, &file_list, remove_source);
2593 }
2594
2595 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
2596                           gboolean remove_source)
2597 {
2598         Folder *folder;
2599         gint ret, num, lastnum = -1;
2600         GSList *file_cur;
2601         GRelation *relation;
2602         MsgFileInfo *fileinfo = NULL;
2603         gboolean folderscan = FALSE;
2604
2605         g_return_val_if_fail(dest != NULL, -1);
2606         g_return_val_if_fail(file_list != NULL, -1);
2607         g_return_val_if_fail(dest->folder != NULL, -1);
2608         if (dest->no_select)
2609                 return -1;
2610
2611         folder = dest->folder;
2612
2613         relation = g_relation_new(2);
2614         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2615
2616         if (folder->klass->add_msgs != NULL) {
2617                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
2618                 if (ret < 0) {
2619                         g_relation_destroy(relation);
2620                         return ret;
2621                 }
2622         } else {
2623                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2624                         fileinfo = (MsgFileInfo *) file_cur->data;
2625
2626                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
2627                         if (ret < 0) {
2628                                 g_relation_destroy(relation);
2629                                 return ret;
2630                         }
2631                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
2632                 }
2633         }
2634
2635         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2636                 GTuples *tuples;
2637
2638                 fileinfo = (MsgFileInfo *) file_cur->data;
2639                 tuples = g_relation_select(relation, fileinfo, 0);
2640                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2641                 g_tuples_destroy(tuples);
2642
2643                 if (num >= 0) {
2644                         MsgInfo *newmsginfo;
2645
2646                         if (num == 0) {
2647                                 if (!folderscan) {
2648                                         folder_item_scan_full(dest, FALSE);
2649                                         folderscan = TRUE;
2650                                 }
2651                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
2652                         }
2653
2654                         if (num > lastnum)
2655                                 lastnum = num;
2656
2657                         if (num >= 0 && remove_source) {
2658                                 if (g_unlink(fileinfo->file) < 0)
2659                                         FILE_OP_ERROR(fileinfo->file, "unlink");
2660                         }
2661
2662                         if (num == 0)
2663                                 continue;
2664
2665                         if (!folderscan &&
2666                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
2667                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
2668                                 procmsg_msginfo_free(newmsginfo);
2669                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2670                                 /* TODO: set default flags */
2671                                 procmsg_msginfo_free(newmsginfo);
2672                         }
2673                 }
2674         }
2675
2676         g_relation_destroy(relation);
2677
2678         return lastnum;
2679 }
2680
2681 FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest)
2682 {
2683         GSList *mlist;
2684         FolderItem *new_item;
2685         FolderItem *next_item;
2686         GNode *srcnode;
2687         gchar *old_id, *new_id;
2688
2689         /* move messages */
2690         debug_print("Moving %s to %s\n", src->path, dest->path);
2691         new_item = folder_create_folder(dest, src->name);
2692         if (new_item == NULL) {
2693                 printf("Can't create folder\n");
2694                 return NULL;
2695         }
2696
2697         if (new_item->folder == NULL)
2698                 new_item->folder = dest->folder;
2699
2700         /* move messages */
2701         log_message(_("Moving %s to %s...\n"),
2702                         src->name, new_item->path);
2703
2704         mlist = folder_item_get_msg_list(src);
2705
2706         if (mlist != NULL) {
2707                 folder_item_move_msgs(new_item, mlist);
2708                 procmsg_msg_list_free(mlist);
2709         }
2710
2711         /*copy prefs*/
2712         folder_item_prefs_copy_prefs(src, new_item);
2713         new_item->collapsed = src->collapsed;
2714         new_item->thread_collapsed = src->thread_collapsed;
2715         new_item->threaded  = src->threaded;
2716         new_item->ret_rcpt  = src->ret_rcpt;
2717         new_item->hide_read_msgs = src->hide_read_msgs;
2718         new_item->sort_key  = src->sort_key;
2719         new_item->sort_type = src->sort_type;
2720
2721         prefs_matcher_write_config();
2722
2723         /* recurse */
2724         srcnode = src->folder->node;
2725         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
2726         srcnode = srcnode->children;
2727         while (srcnode != NULL) {
2728                 if (srcnode && srcnode->data) {
2729                         next_item = (FolderItem*) srcnode->data;
2730                         srcnode = srcnode->next;
2731                         if (folder_item_move_recursive(next_item, new_item) == NULL) {
2732                                 return NULL;
2733                         }
2734                 }
2735         }
2736         old_id = folder_item_get_identifier(src);
2737         new_id = folder_item_get_identifier(new_item);
2738         debug_print("updating rules : %s => %s\n", old_id, new_id);
2739
2740         /* if src supports removing, otherwise only copy folder */
2741         if (src->folder->klass->remove_folder != NULL)
2742                 src->folder->klass->remove_folder(src->folder, src);
2743         folder_write_list();
2744
2745         if (old_id != NULL && new_id != NULL) {
2746                 prefs_filtering_rename_path(old_id, new_id);
2747                 account_rename_path(old_id, new_id);
2748         }
2749         g_free(old_id);
2750         g_free(new_id);
2751
2752         return new_item;
2753 }
2754
2755 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item)
2756 {
2757         FolderItem *tmp = folder_item_parent(dest);
2758         gchar * src_identifier, * dst_identifier;
2759         gchar * phys_srcpath, * phys_dstpath, *tmppath;
2760
2761         while (tmp) {
2762                 if (tmp == src) {
2763                         return F_MOVE_FAILED_DEST_IS_CHILD;
2764                 }
2765                 tmp = folder_item_parent(tmp);
2766         }
2767
2768         tmp = folder_item_parent(src);
2769
2770         src_identifier = folder_item_get_identifier(src);
2771         dst_identifier = folder_item_get_identifier(dest);
2772
2773         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
2774                 /* dest can be a root folder */
2775                 dst_identifier = folder_get_identifier(dest->folder);
2776         }
2777         if (src_identifier == NULL || dst_identifier == NULL) {
2778                 debug_print("Can't get identifiers\n");
2779                 return F_MOVE_FAILED;
2780         }
2781
2782         if (src->folder != dest->folder) {
2783                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
2784         }
2785
2786         phys_srcpath = folder_item_get_path(src);
2787         tmppath = folder_item_get_path(dest);
2788         phys_dstpath = g_strconcat(tmppath,
2789                        G_DIR_SEPARATOR_S,
2790                        g_path_get_basename(phys_srcpath),
2791                        NULL);
2792         g_free(tmppath);
2793
2794         if (folder_item_parent(src) == dest || src == dest) {
2795                 g_free(src_identifier);
2796                 g_free(dst_identifier);
2797                 g_free(phys_srcpath);
2798                 g_free(phys_dstpath);
2799                 return F_MOVE_FAILED_DEST_IS_PARENT;
2800         }
2801         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
2802         if ((tmp = folder_item_move_recursive(src, dest)) == NULL) {
2803                 return F_MOVE_FAILED;
2804         }
2805
2806         g_free(src_identifier);
2807         g_free(dst_identifier);
2808         g_free(phys_srcpath);
2809         g_free(phys_dstpath);
2810
2811         *new_item = tmp;
2812
2813         return F_MOVE_OK;
2814 }
2815
2816 /**
2817  * Copy a list of message to a new folder and remove
2818  * source messages if wanted
2819  */
2820 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
2821 {
2822         Folder *folder;
2823         GSList *l;
2824         gint num, lastnum = -1;
2825         gboolean folderscan = FALSE;
2826         GRelation *relation;
2827         GSList *not_moved = NULL;
2828         gint total = 0, curmsg = 0;
2829
2830         g_return_val_if_fail(dest != NULL, -1);
2831         g_return_val_if_fail(msglist != NULL, -1);
2832
2833         folder = dest->folder;
2834
2835         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
2836         if (dest->no_select)
2837                 return -1;
2838
2839         relation = g_relation_new(2);
2840         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2841         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
2842
2843         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
2844                 MsgInfo * msginfo = (MsgInfo *) l->data;
2845
2846                 if (msginfo->planned_download != 0) {
2847                         int old_planned = msginfo->planned_download;
2848                         partial_unmark(msginfo);
2849                         /* little hack to reenable after */
2850                         msginfo->planned_download = old_planned;
2851                 }
2852         }
2853
2854         /*
2855          * Copy messages to destination folder and
2856          * store new message numbers in newmsgnums
2857          */
2858         if (folder->klass->copy_msgs != NULL) {
2859                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
2860                         g_relation_destroy(relation);
2861                         return -1;
2862                 }
2863         } else {
2864                 MsgInfo * msginfo;
2865                 l = msglist;
2866
2867                 /* immediately stop if src and dest folders are identical */
2868                 if (l != NULL) {
2869                         msginfo = (MsgInfo *) l->data;
2870                         if (msginfo != NULL && msginfo->folder == dest) {
2871                                 g_relation_destroy(relation);
2872                                 return -1;
2873                         }
2874                 }
2875
2876                 for (; l != NULL ; l = g_slist_next(l)) {
2877                         msginfo = (MsgInfo *) l->data;
2878
2879                         num = folder->klass->copy_msg(folder, dest, msginfo);
2880                         if (num > 0)
2881                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
2882                         else
2883                                 not_moved = g_slist_prepend(not_moved, msginfo);
2884                 }
2885         }
2886
2887         if (remove_source) {
2888                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
2889                 FolderItem *item = msginfo->folder;
2890                 /*
2891                  * Remove source messages from their folders if
2892                  * copying was successfull and update folder
2893                  * message counts
2894                  */
2895                 if (item->folder->klass->remove_msgs) {
2896                         item->folder->klass->remove_msgs(item->folder,
2897                                                                 msginfo->folder,
2898                                                                 msglist,
2899                                                                 relation);
2900                 }
2901                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
2902                         GTuples *tuples;
2903                         msginfo = (MsgInfo *) l->data;
2904                         item = msginfo->folder;
2905
2906                         tuples = g_relation_select(relation, msginfo, 0);
2907                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2908                         g_tuples_destroy(tuples);
2909
2910                         if (g_slist_find(not_moved, msginfo))
2911                                 continue;
2912
2913                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
2914                                 if (!item->folder->klass->remove_msgs)
2915                                         item->folder->klass->remove_msg(item->folder,
2916                                                                 msginfo->folder,
2917                                                                 msginfo->msgnum);
2918                                 remove_msginfo_from_cache(item, msginfo);
2919                         }
2920                 }
2921         }
2922
2923         /* Read cache for dest folder */
2924         if (!dest->cache) folder_item_read_cache(dest);
2925
2926         /*
2927          * Fetch new MsgInfos for new messages in dest folder,
2928          * add them to the msgcache and update folder message counts
2929          */
2930         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
2931                 folder_item_scan_full(dest, FALSE);
2932                 folderscan = TRUE;
2933         }
2934
2935         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
2936         total = g_slist_length(msglist);
2937         for (l = msglist; l != NULL; l = g_slist_next(l)) {
2938                 MsgInfo *msginfo = (MsgInfo *) l->data;
2939                 GTuples *tuples;
2940
2941                 tuples = g_relation_select(relation, msginfo, 0);
2942                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2943                 g_tuples_destroy(tuples);
2944
2945                 statusbar_progress_all(curmsg++,total, 100);
2946                 if (curmsg % 100 == 0)
2947                         GTK_EVENTS_FLUSH();
2948
2949                 if (num >= 0) {
2950                         MsgInfo *newmsginfo = NULL;
2951
2952                         if (folderscan) {
2953                                 if (msginfo->msgid != NULL) {
2954                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
2955                                         if (newmsginfo != NULL) {
2956                                                 copy_msginfo_flags(msginfo, newmsginfo);
2957                                                 num = newmsginfo->msgnum;
2958                                         }
2959                                 }
2960                         } else {
2961                                 newmsginfo = get_msginfo(dest, num);
2962                                 if (newmsginfo != NULL) {
2963                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
2964                                 }
2965                         }
2966
2967                         if (msginfo->planned_download
2968                             == POP3_PARTIAL_DLOAD_DELE) {
2969                                 partial_mark_for_delete(newmsginfo);
2970                         }
2971                         if (msginfo->planned_download
2972                             == POP3_PARTIAL_DLOAD_DLOAD) {
2973                                 partial_mark_for_download(newmsginfo);
2974                         }
2975                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
2976                             procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
2977                             procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
2978                             hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
2979                         }
2980                         procmsg_msginfo_free(newmsginfo);
2981
2982
2983                         if (num > lastnum)
2984                                 lastnum = num;
2985                 }
2986         }
2987         statusbar_progress_all(0,0,0);
2988         statusbar_pop_all();
2989
2990         g_relation_destroy(relation);
2991         if (not_moved != NULL) {
2992                 g_slist_free(not_moved);
2993                 return -1;
2994         } else
2995                 return lastnum;
2996 }
2997
2998 /**
2999  * Move a message to a new folder.
3000  *
3001  * \param dest Destination folder
3002  * \param msginfo The message
3003  */
3004 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3005 {
3006         GSList list;
3007
3008         g_return_val_if_fail(dest != NULL, -1);
3009         g_return_val_if_fail(msginfo != NULL, -1);
3010
3011         list.data = msginfo;
3012         list.next = NULL;
3013
3014         return do_copy_msgs(dest, &list, TRUE);
3015 }
3016
3017 /**
3018  * Move a list of messages to a new folder.
3019  *
3020  * \param dest Destination folder
3021  * \param msglist List of messages
3022  */
3023 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3024 {
3025         gint result = -1;
3026         g_return_val_if_fail(dest != NULL, -1);
3027         g_return_val_if_fail(msglist != NULL, -1);
3028         inc_lock();
3029         result = do_copy_msgs(dest, msglist, TRUE);
3030         inc_unlock();
3031         return result;
3032 }
3033
3034 /**
3035  * Copy a message to a new folder.
3036  *
3037  * \param dest Destination folder
3038  * \param msginfo The message
3039  */
3040 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3041 {
3042         GSList list;
3043
3044         g_return_val_if_fail(dest != NULL, -1);
3045         g_return_val_if_fail(msginfo != NULL, -1);
3046
3047         list.data = msginfo;
3048         list.next = NULL;
3049
3050         return do_copy_msgs(dest, &list, FALSE);
3051 }
3052
3053 /**
3054  * Copy a list of messages to a new folder.
3055  *
3056  * \param dest Destination folder
3057  * \param msglist List of messages
3058  */
3059 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3060 {
3061         gint result;
3062         g_return_val_if_fail(dest != NULL, -1);
3063         g_return_val_if_fail(msglist != NULL, -1);
3064
3065         inc_lock();
3066         result = do_copy_msgs(dest, msglist, FALSE);
3067         inc_unlock();
3068
3069         return result;
3070 }
3071
3072 gint folder_item_remove_msg(FolderItem *item, gint num)
3073 {
3074         Folder *folder;
3075         gint ret;
3076         MsgInfo *msginfo;
3077
3078         g_return_val_if_fail(item != NULL, -1);
3079         folder = item->folder;
3080         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3081         if (item->no_select)
3082                 return -1;
3083
3084         if (!item->cache) folder_item_read_cache(item);
3085
3086         ret = folder->klass->remove_msg(folder, item, num);
3087
3088         msginfo = msgcache_get_msg(item->cache, num);
3089         if (msginfo != NULL) {
3090                 remove_msginfo_from_cache(item, msginfo);
3091                 procmsg_msginfo_free(msginfo);
3092         }
3093
3094         return ret;
3095 }
3096
3097 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3098 {
3099         Folder *folder;
3100         gint ret = 0;
3101
3102         g_return_val_if_fail(item != NULL, -1);
3103         folder = item->folder;
3104         g_return_val_if_fail(folder != NULL, -1);
3105         if (item->no_select)
3106                 return -1;
3107         inc_lock();
3108         if (!item->cache) folder_item_read_cache(item);
3109
3110         folder_item_update_freeze();
3111         if (item->folder->klass->remove_msgs) {
3112                 ret = item->folder->klass->remove_msgs(item->folder,
3113                                                         item,
3114                                                         msglist,
3115                                                         NULL);
3116         }
3117         while (ret == 0 && msglist != NULL) {
3118                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
3119                 if (MSG_IS_LOCKED(msginfo->flags)) {
3120                         msglist = msglist->next;
3121                         continue;
3122                 }
3123                 if (!item->folder->klass->remove_msgs)
3124                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3125                 if (ret != 0) break;
3126                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3127                 msglist = msglist->next;
3128         }
3129         folder_item_scan_full(item, FALSE);
3130         folder_item_update_thaw();
3131         inc_unlock();
3132         return ret;
3133 }
3134
3135 gint folder_item_remove_all_msg(FolderItem *item)
3136 {
3137         Folder *folder;
3138         gint result;
3139
3140         g_return_val_if_fail(item != NULL, -1);
3141         if (item->no_select)
3142                 return -1;
3143
3144         folder = item->folder;
3145
3146         inc_lock();
3147         if (folder->klass->remove_all_msg != NULL) {
3148                 result = folder->klass->remove_all_msg(folder, item);
3149
3150                 if (result == 0) {
3151                         folder_item_free_cache(item, TRUE);
3152                         item->cache = msgcache_new();
3153                 }
3154         } else {
3155                 MsgInfoList *msglist;
3156
3157                 msglist = folder_item_get_msg_list(item);
3158                 result = folder_item_remove_msgs(item, msglist);
3159                 procmsg_msg_list_free(msglist);
3160         }
3161
3162         if (result == 0) {
3163                 item->new_msgs = 0;
3164                 item->unread_msgs = 0;
3165                 item->unreadmarked_msgs = 0;
3166                 item->marked_msgs = 0;
3167                 item->total_msgs = 0;
3168                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3169         }
3170
3171         inc_unlock();
3172         return result;
3173 }
3174
3175 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3176 {
3177         g_return_if_fail(item != NULL);
3178         g_return_if_fail(msginfo != NULL);
3179         if (item->no_select)
3180                 return;
3181
3182         if (item->folder->klass->change_flags != NULL) {
3183                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3184         } else {
3185                 msginfo->flags.perm_flags = newflags;
3186         }
3187 }
3188
3189 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3190 {
3191         Folder *folder;
3192
3193         g_return_val_if_fail(item != NULL, FALSE);
3194         if (item->no_select)
3195                 return FALSE;
3196
3197         folder = item->folder;
3198
3199         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3200
3201         return folder->klass->is_msg_changed(folder, item, msginfo);
3202 }
3203
3204 gchar *folder_item_get_cache_file(FolderItem *item)
3205 {
3206         gchar *path;
3207         gchar *file;
3208
3209         g_return_val_if_fail(item != NULL, NULL);
3210         g_return_val_if_fail(item->path != NULL, NULL);
3211
3212         path = folder_item_get_path(item);
3213         g_return_val_if_fail(path != NULL, NULL);
3214         if (!is_dir_exist(path))
3215                 make_dir_hier(path);
3216         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3217         g_free(path);
3218
3219         return file;
3220 }
3221
3222 gchar *folder_item_get_mark_file(FolderItem *item)
3223 {
3224         gchar *path;
3225         gchar *file;
3226
3227         g_return_val_if_fail(item != NULL, NULL);
3228         g_return_val_if_fail(item->path != NULL, NULL);
3229
3230         path = folder_item_get_path(item);
3231         g_return_val_if_fail(path != NULL, NULL);
3232         if (!is_dir_exist(path))
3233                 make_dir_hier(path);
3234         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3235         g_free(path);
3236
3237         return file;
3238 }
3239
3240 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3241 {
3242         XMLNode *xmlnode = (XMLNode *) nodedata;
3243         Folder *folder = (Folder *) data;
3244         FolderItem *item;
3245
3246         g_return_val_if_fail(xmlnode != NULL, NULL);
3247         g_return_val_if_fail(folder != NULL, NULL);
3248
3249         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
3250                 g_warning("tag name != \"folderitem\"\n");
3251                 return NULL;
3252         }
3253
3254         item = folder_item_new(folder, "", "");
3255         if (folder->klass->item_set_xml != NULL)
3256                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
3257         else
3258                 folder_item_set_xml(folder, item, xmlnode->tag);
3259
3260         item->folder = folder;
3261
3262         switch (item->stype) {
3263         case F_INBOX:  folder->inbox  = item; break;
3264         case F_OUTBOX: folder->outbox = item; break;
3265         case F_DRAFT:  folder->draft  = item; break;
3266         case F_QUEUE:  folder->queue  = item; break;
3267         case F_TRASH:  folder->trash  = item; break;
3268         default:       break;
3269         }
3270         folder_item_prefs_read_config(item);
3271
3272         return item;
3273 }
3274
3275 static gboolean folder_item_set_node(GNode *node, gpointer data)
3276 {
3277         FolderItem *item = (FolderItem *) node->data;
3278         item->node = node;
3279
3280         return FALSE;
3281 }
3282
3283 static Folder *folder_get_from_xml(GNode *node)
3284 {
3285         Folder *folder;
3286         XMLNode *xmlnode;
3287         GList *list;
3288         FolderClass *klass = NULL;
3289         GNode *cur;
3290
3291         g_return_val_if_fail(node->data != NULL, NULL);
3292
3293         xmlnode = node->data;
3294         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
3295                 g_warning("tag name != \"folder\"\n");
3296                 return NULL;
3297         }
3298         list = xmlnode->tag->attr;
3299         for (; list != NULL; list = list->next) {
3300                 XMLAttr *attr = list->data;
3301
3302                 if (!attr || !attr->name || !attr->value) continue;
3303                 if (!strcmp(attr->name, "type"))
3304                         klass = folder_get_class_from_string(attr->value);
3305         }
3306         if (klass == NULL)
3307                 return NULL;
3308
3309         folder = folder_new(klass, "", "");
3310         g_return_val_if_fail(folder != NULL, NULL);
3311
3312         if (klass->set_xml)
3313                 klass->set_xml(folder, xmlnode->tag);
3314         else
3315                 folder_set_xml(folder, xmlnode->tag);
3316
3317         cur = node->children;
3318         while (cur != NULL) {
3319                 GNode *itemnode;
3320
3321                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
3322                 g_node_append(folder->node, itemnode);
3323                 cur = cur->next;
3324         }
3325         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
3326
3327         return folder;
3328 }
3329
3330 static gchar *folder_get_list_path(void)
3331 {
3332         static gchar *filename = NULL;
3333
3334         if (!filename)
3335                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3336                                         FOLDER_LIST, NULL);
3337
3338         return filename;
3339 }
3340
3341 #define PUT_ESCAPE_STR(fp, attr, str)                   \
3342 {                                                       \
3343         fputs(" " attr "=\"", fp);                      \
3344         xml_file_put_escape_str(fp, str);               \
3345         fputs("\"", fp);                                \
3346 }
3347
3348 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
3349 {
3350         FolderItem *item = (FolderItem *) nodedata;
3351         XMLTag *tag;
3352
3353         g_return_val_if_fail(item != NULL, NULL);
3354
3355         if (item->folder->klass->item_get_xml != NULL)
3356                 tag = item->folder->klass->item_get_xml(item->folder, item);
3357         else
3358                 tag = folder_item_get_xml(item->folder, item);
3359
3360         return xml_node_new(tag, NULL);
3361 }
3362
3363 static GNode *folder_get_xml_node(Folder *folder)
3364 {
3365         GNode *node;
3366         XMLNode *xmlnode;
3367         XMLTag *tag;
3368
3369         g_return_val_if_fail(folder != NULL, NULL);
3370
3371         if (folder->klass->get_xml != NULL)
3372                 tag = folder->klass->get_xml(folder);
3373         else
3374                 tag = folder_get_xml(folder);
3375
3376         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
3377
3378         xmlnode = xml_node_new(tag, NULL);
3379
3380         node = g_node_new(xmlnode);
3381         if (folder->node->children) {
3382                 GNode *cur;
3383
3384                 cur = folder->node->children;
3385                 while (cur) {
3386                         GNode *xmlnode;
3387
3388                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
3389                         g_node_append(node, xmlnode);
3390                         cur = cur->next;
3391                 }
3392         }
3393
3394         return node;
3395 }
3396
3397 static void folder_update_op_count_rec(GNode *node)
3398 {
3399         FolderItem *fitem = FOLDER_ITEM(node->data);
3400
3401         if (g_node_depth(node) > 0) {
3402                 if (fitem->op_count > 0) {
3403                         fitem->op_count = 0;
3404                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
3405                 }
3406                 if (node->children) {
3407                         GNode *child;
3408
3409                         child = node->children;
3410                         while (child) {
3411                                 GNode *cur;
3412
3413                                 cur = child;
3414                                 child = cur->next;
3415                                 folder_update_op_count_rec(cur);
3416                         }
3417                 }
3418         }
3419 }
3420
3421 void folder_update_op_count(void)
3422 {
3423         GList *cur;
3424         Folder *folder;
3425
3426         for (cur = folder_list; cur != NULL; cur = cur->next) {
3427                 folder = cur->data;
3428                 folder_update_op_count_rec(folder->node);
3429         }
3430 }
3431
3432 typedef struct _type_str {
3433         gchar * str;
3434         gint type;
3435 } type_str;
3436
3437
3438 /*
3439 static gchar * folder_item_get_tree_identifier(FolderItem * item)
3440 {
3441         if (item->parent != NULL) {
3442                 gchar * path;
3443                 gchar * id;
3444
3445                 path = folder_item_get_tree_identifier(item->parent);
3446                 if (path == NULL)
3447                         return NULL;
3448
3449                 id = g_strconcat(path, "/", item->name, NULL);
3450                 g_free(path);
3451
3452                 return id;
3453         }
3454         else {
3455                 return g_strconcat("/", item->name, NULL);
3456         }
3457 }
3458 */
3459
3460 /* CLAWS: temporary local folder for filtering */
3461 #define TEMP_FOLDER "TEMP_FOLDER"
3462 #define PROCESSING_FOLDER_ITEM "processing"
3463
3464 static FolderItem *processing_folder_item;
3465
3466 static void folder_create_processing_folder(void)
3467 {
3468         Folder *processing_folder;
3469         gchar      *tmpname;
3470
3471         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
3472                 gchar *tmppath;
3473
3474                 tmppath =
3475                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3476                                 "tempfolder", NULL);
3477                 processing_folder =
3478                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
3479                 g_free(tmppath);
3480         }
3481         g_assert(processing_folder != NULL);
3482
3483         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
3484         /* FIXME: [W32] The code below does not correctly merge
3485            relative filenames; there should be a function to handle
3486            this.  */
3487         if (!is_relative_filename(LOCAL_FOLDER(processing_folder)->rootpath))
3488                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
3489                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3490                                       NULL);
3491         else
3492                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
3493                                       LOCAL_FOLDER(processing_folder)->rootpath,
3494                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3495                                       NULL);
3496
3497         if (!is_dir_exist(tmpname)) {
3498                 debug_print("*TMP* creating %s\n", tmpname);
3499                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
3500                                                                                  processing_folder->node->data,
3501                                                                                  PROCESSING_FOLDER_ITEM);
3502         } else {
3503                 debug_print("*TMP* already created\n");
3504                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
3505                 g_assert(processing_folder_item);
3506                 folder_item_append(processing_folder->node->data, processing_folder_item);
3507         }
3508         g_assert(processing_folder_item != NULL);
3509         g_free(tmpname);
3510 }
3511
3512 FolderItem *folder_get_default_processing(void)
3513 {
3514         if (!processing_folder_item) {
3515                 folder_create_processing_folder();
3516         }
3517         return processing_folder_item;
3518 }
3519
3520 /* folder_persist_prefs_new() - return hash table with persistent
3521  * settings (and folder name as key).
3522  * (note that in claws other options are in the folder_item_prefs_RC
3523  * file, so those don't need to be included in PersistPref yet)
3524  */
3525 GHashTable *folder_persist_prefs_new(Folder *folder)
3526 {
3527         GHashTable *pptable;
3528
3529         g_return_val_if_fail(folder, NULL);
3530         pptable = g_hash_table_new(g_str_hash, g_str_equal);
3531         folder_get_persist_prefs_recursive(folder->node, pptable);
3532         return pptable;
3533 }
3534
3535 void folder_persist_prefs_free(GHashTable *pptable)
3536 {
3537         g_return_if_fail(pptable);
3538         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
3539         g_hash_table_destroy(pptable);
3540 }
3541
3542 const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
3543 {
3544         if (pptable == NULL || name == NULL) return NULL;
3545         return g_hash_table_lookup(pptable, name);
3546 }
3547
3548 void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
3549 {
3550         const PersistPrefs *pp;
3551         gchar *id = folder_item_get_identifier(item);
3552
3553         pp = folder_get_persist_prefs(pptable, id);
3554         g_free(id);
3555
3556         if (!pp) return;
3557
3558         /* CLAWS: since not all folder properties have been migrated to
3559          * folderlist.xml, we need to call the old stuff first before
3560          * setting things that apply both to Main and Claws. */
3561         folder_item_prefs_read_config(item);
3562
3563         item->collapsed = pp->collapsed;
3564         item->thread_collapsed = pp->thread_collapsed;
3565         item->threaded  = pp->threaded;
3566         item->ret_rcpt  = pp->ret_rcpt;
3567         item->hide_read_msgs = pp->hide_read_msgs;
3568         item->sort_key  = pp->sort_key;
3569         item->sort_type = pp->sort_type;
3570 }
3571
3572 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
3573 {
3574         FolderItem *item = FOLDER_ITEM(node->data);
3575         PersistPrefs *pp;
3576         GNode *child, *cur;
3577         gchar *id;
3578
3579         g_return_if_fail(node != NULL);
3580         g_return_if_fail(item != NULL);
3581
3582         /* NOTE: item->path == NULL means top level folder; not interesting
3583          * to store preferences of that one.  */
3584         if (item->path) {
3585                 id = folder_item_get_identifier(item);
3586                 pp = g_new0(PersistPrefs, 1);
3587                 g_return_if_fail(pp != NULL);
3588                 pp->collapsed = item->collapsed;
3589                 pp->thread_collapsed = item->thread_collapsed;
3590                 pp->threaded  = item->threaded;
3591                 pp->ret_rcpt  = item->ret_rcpt;
3592                 pp->hide_read_msgs = item->hide_read_msgs;
3593                 pp->sort_key  = item->sort_key;
3594                 pp->sort_type = item->sort_type;
3595                 g_hash_table_insert(pptable, id, pp);
3596         }
3597
3598         if (node->children) {
3599                 child = node->children;
3600                 while (child) {
3601                         cur = child;
3602                         child = cur->next;
3603                         folder_get_persist_prefs_recursive(cur, pptable);
3604                 }
3605         }
3606 }
3607
3608 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
3609 {
3610         g_free(key);
3611         g_free(val);
3612         return TRUE;
3613 }
3614
3615 void folder_item_apply_processing(FolderItem *item)
3616 {
3617         GSList *processing_list;
3618         GSList *mlist, *cur;
3619         guint total = 0, curmsg = 0;
3620
3621         g_return_if_fail(item != NULL);
3622
3623         if (item->no_select)
3624                return;
3625
3626         processing_list = item->prefs->processing;
3627
3628         if (!pre_global_processing && !processing_list
3629         &&  !post_global_processing)
3630                 return;
3631
3632         folder_item_update_freeze();
3633
3634         mlist = folder_item_get_msg_list(item);
3635         total = g_slist_length(mlist);
3636         statusbar_print_all(_("Processing messages..."));
3637         for (cur = mlist ; cur != NULL ; cur = cur->next) {
3638                 MsgInfo * msginfo;
3639
3640                 msginfo = (MsgInfo *) cur->data;
3641
3642                 /* reset parameters that can be modified by processing */
3643                 msginfo->hidden = 0;
3644                 msginfo->score = 0;
3645
3646                 statusbar_progress_all(curmsg++,total, 10);
3647
3648                 /* apply pre global rules */
3649                 filter_message_by_msginfo(pre_global_processing, msginfo);
3650
3651                 /* apply rules of the folder */
3652                 filter_message_by_msginfo(processing_list, msginfo);
3653
3654                 /* apply post global rules */
3655                 filter_message_by_msginfo(post_global_processing, msginfo);
3656
3657         }
3658         if (pre_global_processing || processing_list
3659             || post_global_processing)
3660                 filtering_move_and_copy_msgs(mlist);
3661         for (cur = mlist ; cur != NULL ; cur = cur->next) {
3662                 MsgInfo * msginfo = (MsgInfo *)cur->data;
3663                 procmsg_msginfo_free(msginfo);
3664         }
3665         g_slist_free(mlist);
3666
3667         statusbar_progress_all(0,0,0);
3668         statusbar_pop_all();
3669
3670         folder_item_update_thaw();
3671 }
3672
3673 /*
3674  *  functions for handling FolderItem content changes
3675  */
3676 static gint folder_item_update_freeze_cnt = 0;
3677
3678 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
3679 {
3680         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
3681                 FolderItemUpdateData source;
3682
3683                 source.item = item;
3684                 source.update_flags = update_flags;
3685                 source.msg = msg;
3686                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3687         } else {
3688                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
3689         }
3690 }
3691
3692 /**
3693  * Notify the folder system about changes to a folder. If the
3694  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
3695  * be invoked, otherwise the changes will be remebered until
3696  * the folder system is thawed.
3697  *
3698  * \param item The FolderItem that was changed
3699  * \param update_flags Type of changed that was made
3700  */
3701 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
3702 {
3703         folder_item_update_with_msg(item, update_flags, NULL);
3704 }
3705
3706 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
3707 {
3708         GNode *node = item->folder->node;
3709
3710         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
3711         node = node->children;
3712
3713         folder_item_update(item, update_flags);
3714         while (node != NULL) {
3715                 if (node && node->data) {
3716                         FolderItem *next_item = (FolderItem*) node->data;
3717
3718                         folder_item_update(next_item, update_flags);
3719                 }
3720                 node = node->next;
3721         }
3722 }
3723
3724 void folder_item_update_freeze(void)
3725 {
3726         folder_item_update_freeze_cnt++;
3727 }
3728
3729 static void folder_item_update_func(FolderItem *item, gpointer data)
3730 {
3731         FolderItemUpdateData source;
3732
3733         if (item->update_flags) {
3734                 source.item = item;
3735                 source.update_flags = item->update_flags;
3736                 source.msg = NULL;
3737                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3738                 item->update_flags = 0;
3739         }
3740 }
3741
3742 void folder_item_update_thaw(void)
3743 {
3744         if (folder_item_update_freeze_cnt > 0)
3745                 folder_item_update_freeze_cnt--;
3746         if (folder_item_update_freeze_cnt == 0) {
3747                 /* Update all folders */
3748                 folder_func_to_all_folders(folder_item_update_func, NULL);
3749         }
3750 }
3751
3752 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
3753 {
3754         Folder *folder = (Folder *)data;
3755         if (folder == NULL || item->folder == folder) {
3756                 if(item->prefs->offlinesync && item->folder->klass->synchronise)
3757                         item->folder->klass->synchronise(item);
3758         }
3759 }
3760
3761 void folder_synchronise(Folder *folder)
3762 {
3763         folder_func_to_all_folders(folder_item_synchronise_func, folder);
3764 }
3765
3766 typedef struct _WantSyncData {
3767         Folder *folder;
3768         gboolean want_sync;
3769 } WantSyncData;
3770
3771 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
3772 {
3773         WantSyncData *want_sync_data = (WantSyncData *)data;
3774
3775         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
3776                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
3777                         want_sync_data->want_sync |= TRUE;
3778         }
3779 }
3780
3781 gboolean folder_want_synchronise(Folder *folder)
3782 {
3783         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
3784         gboolean result;
3785         want_sync_data->folder = folder;
3786         want_sync_data->want_sync = FALSE;
3787
3788         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
3789         result = want_sync_data->want_sync;
3790         g_free(want_sync_data);
3791         debug_print("Folder %s wants sync: %d\n", folder->name, result);
3792         return result;
3793 }
3794
3795 void folder_item_set_batch (FolderItem *item, gboolean batch)
3796 {
3797         if (item->folder->klass->set_batch) {
3798                 item->folder->klass->set_batch(item->folder, item, batch);
3799         }
3800 }
3801
3802 gboolean folder_has_parent_of_type(FolderItem *item,
3803                                           SpecialFolderItemType type)
3804 {
3805         FolderItem *cur = item;
3806
3807         /* if we already know it, make it short */
3808         if (item->parent_stype != -1) {
3809                 return (item->parent_stype == type);
3810         }
3811
3812         /* if we don't, find the type from the first possible parent,
3813          * and set our parent type to be faster next time */
3814         while (cur) {
3815                 if (cur->stype == type || cur->parent_stype == type) {
3816                         item->parent_stype = type;
3817                         return TRUE;
3818                 }
3819                 cur = folder_item_parent(cur);
3820         }
3821
3822         /* if we didn't match what was asked, we didn't return. If our
3823          * parent type is unknown, we may as well find it now to be faster
3824          * later. */
3825         if (item->parent_stype == -1) {
3826                 cur = item;
3827                 while (cur) {
3828                         /* here's an exception: Inbox subfolders are normal. */
3829                         if (item->parent_stype == -1 && cur->stype == F_INBOX
3830                         && item != cur) {
3831                                 debug_print("set item %s parent type to %d "
3832                                         "even if %s is F_INBOX\n",
3833                                         item->path ? item->path : "(null)",
3834                                         0, cur->path);
3835                                 item->parent_stype = F_NORMAL;
3836                                 break;
3837                         }
3838                         /* ah, we know this parent's parent's type, we may as
3839                          * well copy it instead of going up the full way */
3840                         if (cur->parent_stype != -1) {
3841                                 item->parent_stype = cur->parent_stype;
3842                                 debug_print("set item %s parent type to %d "
3843                                         "from %s's parent type\n",
3844                                         item->path ? item->path : "(null)",
3845                                         cur->parent_stype ? cur->parent_stype : 0,
3846                                         cur->path ? cur->path : "(null)");
3847                                 break;
3848                         }
3849                         /* we found a parent that has a special type. That's
3850                          * our parent type. */
3851                         if (cur->stype != F_NORMAL) {
3852                                 debug_print("set item %s parent type to %d "
3853                                         "from %s's type\n",
3854                                         item->path ? item->path : "(null)",
3855                                         cur->stype ? cur->stype : 0,
3856                                         cur->path ? cur->path : "(null)");
3857                                 cur->parent_stype = cur->stype;
3858                                 item->parent_stype = cur->stype;
3859                                 break;
3860                         }
3861                         /* if we didn't find anything, go up once more */
3862                         cur = folder_item_parent(cur);
3863                 }
3864                 /* as we still didn't find anything, our parents must all be
3865                  * normal. */
3866                 if (item->parent_stype == -1) {
3867                         debug_print("set item %s to 0 from default\n",
3868                                 item->path ? item->path : "(null)");
3869                         item->parent_stype = F_NORMAL;
3870                 }
3871         }
3872         return FALSE;
3873 }
3874
3875 gboolean folder_subscribe (const gchar *uri)
3876 {
3877         GList *cur;
3878         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
3879                 Folder *folder = (Folder *) cur->data;
3880
3881                 if (folder->klass->subscribe
3882                 &&  folder->klass->subscribe(folder, uri)) {
3883                         return TRUE;
3884                 }
3885         }
3886         return FALSE;
3887
3888 }
3889 #undef PUT_ESCAPE_STR