src/folder.c

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