remove two unnecessary lines added in last commit
[claws.git] / src / folder.c
1 /*
2  * Claws Mail -- a GTK based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2020 the Claws Mail team and 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 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
17  */
18
19 #ifdef HAVE_CONFIG_H
20 #  include "config.h"
21 #include "claws-features.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
35 #include "alertpanel.h"
36 #include "folder.h"
37 #include "session.h"
38 #include "inc.h"
39 #include "imap.h"
40 #include "news.h"
41 #include "mh.h"
42 #include "utils.h"
43 #include "xml.h"
44 #include "codeconv.h"
45 #include "prefs_gtk.h"
46 #include "account.h"
47 #include "filtering.h"
48 #include "procheader.h"
49 #include "hooks.h"
50 #include "log.h"
51 #include "folder_item_prefs.h"
52 #include "remotefolder.h"
53 #include "partial_download.h"
54 #include "statusbar.h"
55 #include "gtkutils.h"
56 #include "timing.h"
57 #include "compose.h"
58 #include "main.h"
59 #include "msgcache.h"
60 #include "privacy.h"
61 #include "prefs_common.h"
62 #include "prefs_migration.h"
63 #include "file-utils.h"
64
65 /* Dependecies to be removed ?! */
66 #include "prefs_account.h"
67
68 /* Define possible missing constants for Windows. */
69 #ifdef G_OS_WIN32
70 # ifndef S_IRGRP
71 # define S_IRGRP 0
72 # define S_IWGRP 0
73 # endif
74 # ifndef S_IROTH
75 # define S_IROTH 0
76 # define S_IWOTH 0
77 # endif
78 #endif
79
80 static GList *folder_list = NULL;
81 static GSList *class_list = NULL;
82 static GSList *folder_unloaded_list = NULL;
83
84 void folder_init                (Folder         *folder,
85                                  const gchar    *name);
86
87 static gchar *folder_item_get_cache_file        (FolderItem     *item);
88 static gchar *folder_item_get_mark_file (FolderItem     *item);
89 static gchar *folder_item_get_tags_file (FolderItem     *item);
90 static GNode *folder_get_xml_node       (Folder         *folder);
91 static Folder *folder_get_from_xml      (GNode          *node);
92 static void folder_update_op_count_rec  (GNode          *node);
93
94
95 static void folder_get_persist_prefs_recursive
96                                         (GNode *node, GHashTable *pptable);
97 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
98 static void folder_item_read_cache              (FolderItem *item);
99 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
100 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
101                                          MsgInfo *msg);
102 static GHashTable *folder_persist_prefs_new     (Folder *folder);
103 static void folder_persist_prefs_free           (GHashTable *pptable);
104 static void folder_item_restore_persist_prefs   (FolderItem *item, GHashTable *pptable);
105
106 void folder_system_init(void)
107 {
108         folder_register_class(mh_get_class());
109         folder_register_class(imap_get_class());
110         folder_register_class(news_get_class());
111 }
112
113 static GSList *folder_get_class_list(void)
114 {
115         return class_list;
116 }
117
118 void folder_register_class(FolderClass *klass)
119 {
120         GSList *xmllist, *cur;
121
122         debug_print("registering folder class %s\n", klass->idstr);
123
124         class_list = g_slist_append(class_list, klass);
125
126         xmllist = g_slist_copy(folder_unloaded_list);
127         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
128                 GNode *node = (GNode *) cur->data;
129                 XMLNode *xmlnode = (XMLNode *) node->data;
130                 GList *cur = xmlnode->tag->attr;
131
132                 for (; cur != NULL; cur = g_list_next(cur)) {
133                         XMLAttr *attr = (XMLAttr *) cur->data;
134
135                         if (!attr || !attr->name || !attr->value) continue;
136                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
137                                 Folder *folder;
138
139                                 folder = folder_get_from_xml(node);
140                                 if (folder) {
141                                         folder_add(folder);
142                                         folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
143                                         xml_free_tree(node);
144                                 }
145                                 cur = NULL;
146                                 continue;
147                         }
148                 }
149         }
150         g_slist_free(xmllist);
151 }
152
153 void folder_unregister_class(FolderClass *klass)
154 {
155         GList *folderlist, *cur;
156
157         debug_print("unregistering folder class %s\n", klass->idstr);
158
159         class_list = g_slist_remove(class_list, klass);
160
161         folderlist = g_list_copy(folder_get_list());
162         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
163                 Folder *folder = (Folder *) cur->data;
164
165                 if (folder->klass == klass) {
166                         GNode *xmlnode = folder_get_xml_node(folder);
167                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
168                         folder_destroy(folder);
169                 }
170         }
171         g_list_free(folderlist);
172
173         if (klass->prefs_pages)
174                 g_slist_free(klass->prefs_pages);
175 }
176
177 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
178 {
179         Folder *folder = NULL;
180         FolderItem *item;
181
182         cm_return_val_if_fail(klass != NULL, NULL);
183
184         name = name ? name : path;
185         folder = klass->new_folder(name, path);
186
187         /* Create root folder item */
188         item = folder_item_new(folder, name, NULL);
189         if (item == NULL) {
190                 return NULL;
191         }
192         item->folder = folder;
193         folder->node = item->node;
194         folder->data = NULL;
195
196         return folder;
197 }
198
199 void folder_init(Folder *folder, const gchar *name)
200 {
201         cm_return_if_fail(folder != NULL);
202
203         folder_set_name(folder, name);
204
205         /* Init folder data */
206         folder->account = NULL;
207         folder->sort = 0;
208         folder->inbox = NULL;
209         folder->outbox = NULL;
210         folder->draft = NULL;
211         folder->queue = NULL;
212         folder->trash = NULL;
213 }
214
215 static void reset_parent_type(FolderItem *item, gpointer data) {
216         item->parent_stype = -1;
217 }
218
219 void folder_item_change_type(FolderItem *item, SpecialFolderItemType newtype)
220 {
221         Folder *folder = NULL;
222         FolderUpdateData hookdata;
223
224         if (item == NULL)
225                 return;
226
227         folder = item->folder;
228         /* unset previous root of newtype */
229         switch(newtype) {
230         case F_INBOX:
231                 folder_item_change_type(folder->inbox, F_NORMAL);
232                 folder->inbox = item;
233                 break;
234         case F_OUTBOX:
235                 folder_item_change_type(folder->outbox, F_NORMAL);
236                 folder->outbox = item;
237                 break;
238         case F_QUEUE:
239                 folder_item_change_type(folder->queue, F_NORMAL);
240                 folder->queue = item;
241                 break;
242         case F_DRAFT:
243                 folder_item_change_type(folder->draft, F_NORMAL);
244                 folder->draft = item;
245                 break;
246         case F_TRASH:
247                 folder_item_change_type(folder->trash, F_NORMAL);
248                 folder->trash = item;
249                 break;
250         case F_NORMAL:
251         default:
252                 break;
253         }
254         /* set new type for current folder and sons */
255         item->stype = newtype;
256         folder_func_to_all_folders(reset_parent_type, NULL);
257         
258         hookdata.folder = folder;
259         hookdata.update_flags = FOLDER_TREE_CHANGED;
260         hookdata.item = NULL;
261         hookdata.item2 = NULL;
262         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
263 }
264
265 void folder_destroy(Folder *folder)
266 {
267         cm_return_if_fail(folder != NULL);
268         cm_return_if_fail(folder->klass->destroy_folder != NULL);
269
270         folder_remove(folder);
271
272         folder_tree_destroy(folder);
273
274         folder->klass->destroy_folder(folder);
275
276         g_free(folder->name);
277         g_free(folder);
278 }
279
280 void folder_set_xml(Folder *folder, XMLTag *tag)
281 {
282         GList *cur;
283         FolderItem *rootitem = NULL;
284
285         if ((folder->node != NULL) && (folder->node->data != NULL))
286                 rootitem = (FolderItem *) folder->node->data;
287
288         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
289                 XMLAttr *attr = (XMLAttr *) cur->data;
290
291                 if (!attr || !attr->name || !attr->value) continue;
292                 if (!strcmp(attr->name, "name")) {
293                         g_free(folder->name);
294                         folder->name = g_strdup(attr->value);
295                         if (rootitem != NULL) {
296                                 g_free(rootitem->name);
297                                 rootitem->name = g_strdup(attr->value);
298                         }
299                 } else if (!strcmp(attr->name, "account_id")) {
300                         PrefsAccount *account;
301
302                         account = account_find_from_id(atoi(attr->value));
303                         if (!account)
304                                 g_warning("account_id: %s not found", attr->value);
305                         else {
306                                 folder->account = account;
307                                 account->folder = folder;
308                         }
309                 } else if (!strcmp(attr->name, "collapsed")) {
310                         if (rootitem != NULL)
311                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
312                 } else if (!strcmp(attr->name, "sort")) {
313                         folder->sort = atoi(attr->value);
314                 }
315         }
316 }
317
318 XMLTag *folder_get_xml(Folder *folder)
319 {
320         XMLTag *tag;
321
322         tag = xml_tag_new("folder");
323
324         if (folder->name)
325                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
326         if (folder->account)
327                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
328         if (folder->node && folder->node->data) {
329                 FolderItem *rootitem = (FolderItem *) folder->node->data;
330
331                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
332         }
333         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
334
335         return tag;
336 }
337
338 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
339 {
340         FolderItem *item = NULL;
341
342         cm_return_val_if_fail(folder != NULL, NULL);
343
344         if (folder->klass->item_new) {
345                 item = folder->klass->item_new(folder);
346         } else {
347                 item = g_new0(FolderItem, 1);
348         }
349
350         cm_return_val_if_fail(item != NULL, NULL);
351
352         item->stype = F_NORMAL;
353
354         if(!g_utf8_validate(name, -1, NULL)) {
355                 item->name = g_malloc(strlen(name)*2+1);
356                 conv_localetodisp(item->name, strlen(name)*2+1, name);
357         } else {
358                 item->name = g_strdup(name);
359         }
360
361         item->path = g_strdup(path);
362         item->mtime = 0;
363         item->new_msgs = 0;
364         item->unread_msgs = 0;
365         item->unreadmarked_msgs = 0;
366         item->marked_msgs = 0;
367         item->total_msgs = 0;
368         item->replied_msgs = 0;
369         item->forwarded_msgs = 0;
370         item->locked_msgs = 0;
371         item->ignored_msgs = 0;
372         item->watched_msgs = 0;
373         item->order = 0;
374         item->last_num = -1;
375         item->cache = NULL;
376         item->no_sub = FALSE;
377         item->no_select = FALSE;
378         item->collapsed = FALSE;
379         item->thread_collapsed = prefs_common.folder_default_thread_collapsed;
380         item->threaded  = prefs_common.folder_default_thread;
381         item->hide_read_threads = prefs_common.folder_default_hide_read_threads;
382         item->hide_read_msgs = prefs_common.folder_default_hide_read_msgs;
383         item->hide_del_msgs = prefs_common.folder_default_hide_del_msgs;
384         item->ret_rcpt  = FALSE;
385         item->opened    = FALSE;
386         item->node = g_node_new(item);
387         item->folder = NULL;
388         item->account = NULL;
389         item->apply_sub = FALSE;
390         item->mark_queue = NULL;
391         item->data = NULL;
392         item->parent_stype = -1;
393
394         item->sort_key = prefs_common.default_sort_key;
395         item->sort_type = prefs_common.default_sort_type;
396
397         item->prefs = folder_item_prefs_new();
398
399         return item;
400 }
401
402 void folder_item_append(FolderItem *parent, FolderItem *item)
403 {
404         cm_return_if_fail(parent != NULL);
405         cm_return_if_fail(parent->folder != NULL);
406         cm_return_if_fail(parent->node != NULL);
407         cm_return_if_fail(item != NULL);
408
409         item->folder = parent->folder;
410         g_node_append(parent->node, item->node);
411 }
412
413 void folder_item_remove(FolderItem *item)
414 {
415         GNode *node, *start_node;
416         FolderUpdateData hookdata;
417         gchar *tags_file = NULL;
418
419         cm_return_if_fail(item != NULL);
420         cm_return_if_fail(item->folder != NULL);
421         cm_return_if_fail(item->folder->node != NULL);
422
423         start_node = item->node;
424         
425         node = item->folder->node;
426         
427         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
428         node = node->children;
429
430         /* remove my children */
431         while (node != NULL) {
432                 if (node && node->data) {
433                         FolderItem *sub_item = (FolderItem*) node->data;
434                         node = node->next;
435                         folder_item_remove(sub_item);
436                 }
437         }
438
439         /* remove myself */
440         if (item->cache != NULL) {
441                 msgcache_destroy(item->cache);
442                 item->cache = NULL;
443         }
444
445         tags_file = folder_item_get_tags_file(item);
446         if (tags_file) {
447                 gchar *tags_dir;
448
449                 claws_unlink(tags_file);
450
451                 tags_dir = g_path_get_dirname(tags_file);
452                 if (tags_dir)
453                         rmdir(tags_dir);
454                 g_free(tags_dir);
455         }
456         g_free(tags_file);
457
458         hookdata.folder = item->folder;
459         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
460         hookdata.item = item;
461         hookdata.item2 = NULL;
462         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
463
464         node = start_node;
465
466         if (item->folder->node == node)
467                 item->folder->node = NULL;
468
469         folder_item_destroy(item);
470
471         g_node_destroy(node);
472 }
473
474 void folder_item_remove_children(FolderItem *item)
475 {
476         GNode *node, *next;
477
478         cm_return_if_fail(item != NULL);
479         cm_return_if_fail(item->folder != NULL);
480         cm_return_if_fail(item->node != NULL);
481
482         node = item->node->children;
483         while (node != NULL) {
484                 next = node->next;
485                 folder_item_remove(FOLDER_ITEM(node->data));
486                 node = next;
487         }
488 }
489
490 void folder_item_destroy(FolderItem *item)
491 {
492         Folder *folder;
493
494         cm_return_if_fail(item != NULL);
495
496         folder = item->folder;
497         if (folder) {
498                 if (folder->inbox == item)
499                         folder->inbox = NULL;
500                 else if (folder->outbox == item)
501                         folder->outbox = NULL;
502                 else if (folder->draft == item)
503                         folder->draft = NULL;
504                 else if (folder->queue == item)
505                         folder->queue = NULL;
506                 else if (folder->trash == item)
507                         folder->trash = NULL;
508         }
509
510         if (item->cache)
511                 folder_item_free_cache(item, TRUE);
512         if (item->prefs)
513                 folder_item_prefs_free(item->prefs);
514         g_free(item->name);
515         g_free(item->path);
516
517         if (item->folder != NULL) {
518                 if(item->folder->klass->item_destroy) {
519                         item->folder->klass->item_destroy(item->folder, item);
520                 } else {
521                         g_free(item);
522                 }
523         }
524 }
525
526 FolderItem *folder_item_parent(FolderItem *item)
527 {
528         cm_return_val_if_fail(item != NULL, NULL);
529         cm_return_val_if_fail(item->node != NULL, NULL);
530
531         if (item->node->parent == NULL)
532                 return NULL;
533         return (FolderItem *) item->node->parent->data;
534 }
535
536 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
537 {
538         GList *cur;
539
540         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
541                 XMLAttr *attr = (XMLAttr *) cur->data;
542
543                 if (!attr || !attr->name || !attr->value) continue;
544                 if (!strcmp(attr->name, "type")) {
545                         if (!g_ascii_strcasecmp(attr->value, "normal"))
546                                 item->stype = F_NORMAL;
547                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
548                                 item->stype = F_INBOX;
549                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
550                                 item->stype = F_OUTBOX;
551                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
552                                 item->stype = F_DRAFT;
553                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
554                                 item->stype = F_QUEUE;
555                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
556                                 item->stype = F_TRASH;
557                 } else if (!strcmp(attr->name, "name")) {
558                         g_free(item->name);
559                         item->name = g_strdup(attr->value);
560                 } else if (!strcmp(attr->name, "path")) {
561                         g_free(item->path);
562                         item->path = g_strdup(attr->value);
563                 } else if (!strcmp(attr->name, "mtime"))
564                         item->mtime = strtoul(attr->value, NULL, 10);
565                 else if (!strcmp(attr->name, "new"))
566                         item->new_msgs = atoi(attr->value);
567                 else if (!strcmp(attr->name, "unread"))
568                         item->unread_msgs = atoi(attr->value);
569                 else if (!strcmp(attr->name, "unreadmarked"))
570                         item->unreadmarked_msgs = atoi(attr->value);
571                 else if (!strcmp(attr->name, "marked"))
572                         item->marked_msgs = atoi(attr->value);
573                 else if (!strcmp(attr->name, "replied"))
574                         item->replied_msgs = atoi(attr->value);
575                 else if (!strcmp(attr->name, "forwarded"))
576                         item->forwarded_msgs = atoi(attr->value);
577                 else if (!strcmp(attr->name, "locked"))
578                         item->locked_msgs = atoi(attr->value);
579                 else if (!strcmp(attr->name, "ignored"))
580                         item->ignored_msgs = atoi(attr->value);
581                 else if (!strcmp(attr->name, "watched"))
582                         item->watched_msgs = atoi(attr->value);
583                 else if (!strcmp(attr->name, "order"))
584                         item->order = atoi(attr->value);
585                 else if (!strcmp(attr->name, "total"))
586                         item->total_msgs = atoi(attr->value);
587                 else if (!strcmp(attr->name, "no_sub"))
588                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
589                 else if (!strcmp(attr->name, "no_select"))
590                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
591                 else if (!strcmp(attr->name, "collapsed"))
592                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
593                 else if (!strcmp(attr->name, "thread_collapsed"))
594                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
595                 else if (!strcmp(attr->name, "threaded"))
596                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
597                 else if (!strcmp(attr->name, "hidereadmsgs"))
598                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
599                 else if (!strcmp(attr->name, "hidedelmsgs"))
600                         item->hide_del_msgs =  *attr->value == '1' ? TRUE : FALSE;
601                 else if (!strcmp(attr->name, "hidereadthreads"))
602                         item->hide_read_threads =  *attr->value == '1' ? TRUE : FALSE;
603                 else if (!strcmp(attr->name, "reqretrcpt"))
604                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
605                 else if (!strcmp(attr->name, "sort_key")) {
606                         if (!strcmp(attr->value, "none"))
607                                 item->sort_key = SORT_BY_NONE;
608                         else if (!strcmp(attr->value, "number"))
609                                 item->sort_key = SORT_BY_NUMBER;
610                         else if (!strcmp(attr->value, "size"))
611                                 item->sort_key = SORT_BY_SIZE;
612                         else if (!strcmp(attr->value, "date"))
613                                 item->sort_key = SORT_BY_DATE;
614                         else if (!strcmp(attr->value, "from"))
615                                 item->sort_key = SORT_BY_FROM;
616                         else if (!strcmp(attr->value, "subject"))
617                                 item->sort_key = SORT_BY_SUBJECT;
618                         else if (!strcmp(attr->value, "score"))
619                                 item->sort_key = SORT_BY_SCORE;
620                         else if (!strcmp(attr->value, "label"))
621                                 item->sort_key = SORT_BY_LABEL;
622                         else if (!strcmp(attr->value, "mark"))
623                                 item->sort_key = SORT_BY_MARK;
624                         else if (!strcmp(attr->value, "unread"))
625                                 item->sort_key = SORT_BY_STATUS;
626                         else if (!strcmp(attr->value, "mime"))
627                                 item->sort_key = SORT_BY_MIME;
628                         else if (!strcmp(attr->value, "to"))
629                                 item->sort_key = SORT_BY_TO;
630                         else if (!strcmp(attr->value, "locked"))
631                                 item->sort_key = SORT_BY_LOCKED;
632                         else if (!strcmp(attr->value, "tags"))
633                                 item->sort_key = SORT_BY_TAGS;
634                         else if (!strcmp(attr->value, "thread_date"))
635                                 item->sort_key = SORT_BY_THREAD_DATE;
636                 } else if (!strcmp(attr->name, "sort_type")) {
637                         if (!strcmp(attr->value, "ascending"))
638                                 item->sort_type = SORT_ASCENDING;
639                         else
640                                 item->sort_type = SORT_DESCENDING;
641                 } else if (!strcmp(attr->name, "account_id")) {
642                         PrefsAccount *account;
643
644                         account = account_find_from_id(atoi(attr->value));
645                         if (!account)
646                                 g_warning("account_id: %s not found", attr->value);
647                         else
648                                 item->account = account;
649                 } else if (!strcmp(attr->name, "apply_sub")) {
650                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
651                 } else if (!strcmp(attr->name, "last_seen")) {
652                         if (!claws_crashed())
653                                 item->last_seen = atoi(attr->value);
654                         else
655                                 item->last_seen = 0;
656                 }
657         }
658         /* options without meaning in drafts */
659         if (item->stype == F_DRAFT)
660                 item->hide_read_msgs =
661                         item->hide_del_msgs =
662                                 item->hide_read_threads = FALSE;
663 }
664
665 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
666 {
667         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
668                                                  "draft", "queue", "trash"};
669         static gchar *sort_key_str[] = {"none", "number", "size", "date",
670                                         "from", "subject", "score", "label",
671                                         "mark", "unread", "mime", "to", 
672                                         "locked", "tags", "thread_date" };
673         XMLTag *tag;
674         gchar *value;
675
676         tag = xml_tag_new("folderitem");
677
678         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
679         if (item->name)
680                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
681         if (item->path)
682                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
683         if (item->no_sub)
684                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
685         if (item->no_select)
686                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
687         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
688         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
689         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
690         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
691         xml_tag_add_attr(tag, xml_attr_new("hidedelmsgs", item->hide_del_msgs ? "1" : "0"));
692         xml_tag_add_attr(tag, xml_attr_new("hidereadthreads", item->hide_read_threads ? "1" : "0"));
693         if (item->ret_rcpt)
694                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
695
696         if (item->sort_key != SORT_BY_NONE) {
697                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
698                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
699         }
700
701         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
702         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
703         g_free(value);
704         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
705         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
706         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
707         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
708         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
709         xml_tag_add_attr(tag, xml_attr_new_int("replied", item->replied_msgs));
710         xml_tag_add_attr(tag, xml_attr_new_int("forwarded", item->forwarded_msgs));
711         xml_tag_add_attr(tag, xml_attr_new_int("locked", item->locked_msgs));
712         xml_tag_add_attr(tag, xml_attr_new_int("ignore", item->ignored_msgs));
713         xml_tag_add_attr(tag, xml_attr_new_int("watched", item->watched_msgs));
714         xml_tag_add_attr(tag, xml_attr_new_int("order", item->order));
715
716         if (item->account)
717                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
718         if (item->apply_sub)
719                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
720
721         xml_tag_add_attr(tag, xml_attr_new_int("last_seen", item->last_seen));
722
723         return tag;
724 }
725
726 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
727 {
728         cm_return_if_fail(folder != NULL);
729
730         folder->ui_func = func;
731         folder->ui_func_data = data;
732 }
733
734 void folder_set_name(Folder *folder, const gchar *name)
735 {
736         cm_return_if_fail(folder != NULL);
737
738         g_free(folder->name);
739         folder->name = name ? g_strdup(name) : NULL;
740         if (folder->node && folder->node->data) {
741                 FolderItem *item = (FolderItem *)folder->node->data;
742
743                 g_free(item->name);
744                 item->name = name ? g_strdup(name) : NULL;
745         }
746 }
747
748 void folder_set_sort(Folder *folder, guint sort)
749 {
750         cm_return_if_fail(folder != NULL);
751
752         if (folder->sort != sort) {
753                 folder_remove(folder);
754                 folder->sort = sort;
755                 folder_add(folder);
756         }
757 }
758
759 static gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
760         FolderItem *item = (FolderItem *) node->data;
761
762         folder_item_destroy(item);
763         return FALSE;
764 }
765
766 void folder_tree_destroy(Folder *folder)
767 {
768         GNode *node;
769
770         cm_return_if_fail(folder != NULL);
771
772         node = folder->node;
773         
774         prefs_filtering_clear_folder(folder);
775
776         if (node != NULL) {
777                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
778                                 folder_tree_destroy_func, NULL);
779                 g_node_destroy(node);
780                 folder->node = NULL;
781         }
782 }
783
784 void folder_add(Folder *folder)
785 {
786         Folder *cur_folder;
787         GList *cur;
788         gint i;
789         FolderUpdateData hookdata;
790
791         cm_return_if_fail(folder != NULL);
792
793         if ((FOLDER_TYPE(folder) == F_IMAP ||
794              FOLDER_TYPE(folder) == F_NEWS) &&
795             folder->account == NULL) {
796                 return;
797         }
798
799         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
800                 cur_folder = FOLDER(cur->data);
801                 if (cur_folder->sort < folder->sort)
802                         break;
803         }
804
805         folder_list = g_list_insert(folder_list, folder, i);
806
807         hookdata.folder = folder;
808         hookdata.update_flags = FOLDER_ADD_FOLDER;
809         hookdata.item = NULL;
810         hookdata.item2 = NULL;
811         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
812 }
813
814 void folder_remove(Folder *folder)
815 {
816         FolderUpdateData hookdata;
817
818         cm_return_if_fail(folder != NULL);
819
820         folder_list = g_list_remove(folder_list, folder);
821
822         hookdata.folder = folder;
823         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
824         hookdata.item = NULL;
825         hookdata.item2 = NULL;
826         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
827 }
828
829 GList *folder_get_list(void)
830 {
831         return folder_list;
832 }
833
834 gint folder_read_list(void)
835 {
836         GNode *node, *cur;
837         XMLNode *xmlnode;
838         gchar *path;
839         GList *list;
840         gint config_version = -1;
841
842         path = folder_get_list_path();
843         if (!is_file_exist(path)) return -1;
844         node = xml_parse_file(path);
845         if (!node) return -1;
846
847         xmlnode = node->data;
848         if (g_strcmp0(xmlnode->tag->tag, "folderlist") != 0) {
849                 g_warning("wrong folder list");
850                 xml_free_tree(node);
851                 return -1;
852         }
853
854         cur = node->children;
855         while (cur != NULL) {
856                 Folder *folder;
857
858                 folder = folder_get_from_xml(cur);
859                 if (folder != NULL)
860                         folder_add(folder);
861                 else
862                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
863                                 (gpointer) xml_copy_tree(cur));
864                 cur = cur->next;
865         }
866
867         for (list = xmlnode->tag->attr; list != NULL; list = list->next) {
868                 XMLAttr *attr = list->data;
869
870                 if (!attr || !attr->name || !attr->value) continue;
871                 if (!strcmp(attr->name, "config_version")) {
872                         config_version = atoi(attr->value);
873                         debug_print("Found folderlist config_version %d\n", config_version);
874                 }
875         }
876
877         xml_free_tree(node);
878
879         if (prefs_update_config_version_folderlist(config_version) < 0) {
880                 debug_print("Folderlist configuration file version upgrade failed\n");
881                 return -2;
882         }
883
884         if (folder_list || folder_unloaded_list)
885                 return 0;
886         else
887                 return -1;
888 }
889
890 void folder_write_list(void)
891 {
892         GList *list;
893         GSList *slist;
894         Folder *folder;
895         gchar *path;
896         PrefFile *pfile;
897         GNode *rootnode;
898         XMLNode *xmlnode;
899         XMLTag *tag;
900
901         path = folder_get_list_path();
902         if ((pfile = prefs_write_open(path)) == NULL) return;
903
904         if (xml_file_put_xml_decl(pfile->fp) < 0) {
905                 prefs_file_close_revert(pfile);
906                 g_warning("failed to start write folder list");
907                 return;         
908         }
909         tag = xml_tag_new("folderlist");
910         xml_tag_add_attr(tag, xml_attr_new_int("config_version",
911                                 CLAWS_CONFIG_VERSION));
912
913         xmlnode = xml_node_new(tag, NULL);
914
915         rootnode = g_node_new(xmlnode);
916
917         for (list = folder_list; list != NULL; list = list->next) {
918                 GNode *node;
919
920                 folder = list->data;
921                 node = folder_get_xml_node(folder);
922                 if (node != NULL)
923                         g_node_append(rootnode, node);
924         }
925
926         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
927                 GNode *node = (GNode *) slist->data;
928
929                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
930         }
931
932         if (xml_write_tree(rootnode, pfile->fp) < 0) {
933                 prefs_file_close_revert(pfile);
934                 g_warning("failed to write folder list");
935         } else if (prefs_file_close(pfile) < 0) {
936                 g_warning("failed to write folder list");
937         }
938         xml_free_tree(rootnode);
939 }
940
941 static gboolean folder_scan_tree_func(GNode *node, gpointer data)
942 {
943         GHashTable *pptable = (GHashTable *)data;
944         FolderItem *item = (FolderItem *)node->data;
945
946         folder_item_restore_persist_prefs(item, pptable);
947         folder_item_scan_full(item, FALSE);
948
949         return FALSE;
950 }
951
952 static gboolean folder_restore_prefs_func(GNode *node, gpointer data)
953 {
954         GHashTable *pptable = (GHashTable *)data;
955         FolderItem *item = (FolderItem *)node->data;
956
957         folder_item_restore_persist_prefs(item, pptable);
958
959         return FALSE;
960 }
961
962 void folder_scan_tree(Folder *folder, gboolean rebuild)
963 {
964         GHashTable *pptable;
965         FolderUpdateData hookdata;
966         Folder *old_folder = folder;
967
968         if (!folder->klass->scan_tree)
969                 return;
970         
971         pptable = folder_persist_prefs_new(folder);
972
973         if (rebuild)
974                 folder_remove(folder);
975
976         if (folder->klass->scan_tree(folder) < 0) {
977                 if (rebuild)
978                         folder_add(old_folder);
979                 return;
980         } else if (rebuild)
981                 folder_add(folder);
982
983         hookdata.folder = folder;
984         hookdata.update_flags = FOLDER_TREE_CHANGED;
985         hookdata.item = NULL;
986         hookdata.item2 = NULL;
987         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
988
989         if (rebuild)
990                 g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
991         else
992                 g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_restore_prefs_func, pptable);
993
994         folder_persist_prefs_free(pptable);
995
996         prefs_matcher_read_config();
997
998         folder_write_list();
999 }
1000
1001 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
1002 {
1003         FolderItem *new_item;
1004         
1005         cm_return_val_if_fail(parent != NULL, NULL);
1006
1007         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
1008         if (new_item) {
1009                 FolderUpdateData hookdata;
1010
1011                 new_item->cache = msgcache_new();
1012                 new_item->cache_dirty = TRUE;
1013                 new_item->mark_dirty = TRUE;
1014                 new_item->tags_dirty = TRUE;
1015
1016                 hookdata.folder = new_item->folder;
1017                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
1018                 hookdata.item = new_item;
1019                 hookdata.item2 = NULL;
1020                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
1021         }
1022
1023         return new_item;
1024 }
1025
1026 gint folder_item_rename(FolderItem *item, gchar *newname)
1027 {
1028         gint retval;
1029
1030         cm_return_val_if_fail(item != NULL, -1);
1031         cm_return_val_if_fail(newname != NULL, -1);
1032
1033         retval = item->folder->klass->rename_folder(item->folder, item, newname);
1034
1035         if (retval >= 0) {
1036                 FolderItemUpdateData hookdata;
1037                 FolderUpdateData hookdata2;
1038
1039                 hookdata.item = item;
1040                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
1041                 hookdata.msg = NULL;
1042                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
1043
1044                 hookdata2.folder = item->folder;
1045                 hookdata2.item = item;
1046                 hookdata2.item2 = NULL;
1047                 hookdata2.update_flags = FOLDER_RENAME_FOLDERITEM;
1048                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata2);
1049         }
1050
1051         return retval;
1052 }
1053
1054 struct TotalMsgCount
1055 {
1056         guint new_msgs;
1057         guint unread_msgs;
1058         guint unreadmarked_msgs;
1059         guint marked_msgs;
1060         guint total_msgs;
1061         guint replied_msgs;
1062         guint forwarded_msgs;
1063         guint locked_msgs;
1064         guint ignored_msgs;
1065         guint watched_msgs;
1066 };
1067
1068 struct FuncToAllFoldersData
1069 {
1070         FolderItemFunc  function;
1071         gpointer        data;
1072 };
1073
1074 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
1075 {
1076         FolderItem *item;
1077         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
1078
1079         cm_return_val_if_fail(node->data != NULL, FALSE);
1080
1081         item = FOLDER_ITEM(node->data);
1082         cm_return_val_if_fail(item != NULL, FALSE);
1083
1084         function_data->function(item, function_data->data);
1085
1086         return FALSE;
1087 }
1088
1089 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
1090 {
1091         GList *list;
1092         Folder *folder;
1093         struct FuncToAllFoldersData function_data;
1094         
1095         function_data.function = function;
1096         function_data.data = data;
1097
1098         for (list = folder_list; list != NULL; list = list->next) {
1099                 folder = FOLDER(list->data);
1100                 if (folder->node)
1101                         g_node_traverse(folder->node, G_PRE_ORDER,
1102                                         G_TRAVERSE_ALL, -1,
1103                                         folder_func_to_all_folders_func,
1104                                         &function_data);
1105         }
1106 }
1107
1108 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
1109 {
1110         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
1111
1112         count->new_msgs += item->new_msgs;
1113         count->unread_msgs += item->unread_msgs;
1114         count->unreadmarked_msgs += item->unreadmarked_msgs;
1115         count->marked_msgs += item->marked_msgs;
1116         count->total_msgs += item->total_msgs;
1117         count->replied_msgs += item->replied_msgs;
1118         count->forwarded_msgs += item->forwarded_msgs;
1119         count->locked_msgs += item->locked_msgs;
1120         count->ignored_msgs += item->ignored_msgs;
1121         count->watched_msgs += item->watched_msgs;
1122 }
1123
1124 struct TotalMsgStatus
1125 {
1126         guint new;
1127         guint unread;
1128         guint total;
1129         GString *str;
1130 };
1131
1132 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
1133 {
1134         FolderItem *item;
1135         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
1136         gchar *id;
1137  
1138         cm_return_val_if_fail(node->data != NULL, FALSE);
1139  
1140         item = FOLDER_ITEM(node->data);
1141
1142         if (!item->path) return FALSE;
1143
1144         status->new += item->new_msgs;
1145         status->unread += item->unread_msgs;
1146         status->total += item->total_msgs;
1147
1148         if (status->str) {
1149                 id = folder_item_get_identifier(item);
1150                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
1151                                   item->new_msgs, item->unread_msgs,
1152                                   item->total_msgs, id);
1153                 g_free(id);
1154         }
1155  
1156         return FALSE;
1157  }
1158  
1159 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
1160                                        guint *total)
1161 {
1162         GList *list;
1163         Folder *folder;
1164         struct TotalMsgStatus status;
1165  
1166         status.new = status.unread = status.total = 0;
1167         status.str = str;
1168  
1169         debug_print("Counting total number of messages...\n");
1170  
1171         for (list = folder_list; list != NULL; list = list->next) {
1172                 folder = FOLDER(list->data);
1173                 if (folder->node)
1174                         g_node_traverse(folder->node, G_PRE_ORDER,
1175                                         G_TRAVERSE_ALL, -1,
1176                                         folder_get_status_full_all_func,
1177                                         &status);
1178         }
1179  
1180         *new = status.new;
1181         *unread = status.unread;
1182         *total = status.total;
1183 }
1184
1185 gchar *folder_get_status(GPtrArray *folders, gboolean full)
1186 {
1187         guint new, unread, total;
1188         GString *str;
1189         gint i;
1190         gchar *ret;
1191
1192         new = unread = total = 0;
1193
1194         str = g_string_new(NULL);
1195
1196         if (folders) {
1197                 for (i = 0; i < folders->len; i++) {
1198                         FolderItem *item;
1199
1200                         item = g_ptr_array_index(folders, i);
1201                         new += item->new_msgs;
1202                         unread += item->unread_msgs;
1203                         total += item->total_msgs;
1204
1205                         if (full) {
1206                                 gchar *id;
1207
1208                                 id = folder_item_get_identifier(item);
1209                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
1210                                                   item->new_msgs, item->unread_msgs,
1211                                                   item->total_msgs, id);
1212                                 g_free(id);
1213                         }
1214                 }
1215         } else {
1216                 folder_get_status_full_all(full ? str : NULL,
1217                                            &new, &unread, &total);
1218         }
1219
1220         if (full)
1221                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
1222         else
1223                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
1224
1225         ret = str->str;
1226         g_string_free(str, FALSE);
1227  
1228         return ret;
1229 }
1230
1231 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs, 
1232                              guint *unreadmarked_msgs, guint *marked_msgs,
1233                              guint *total_msgs, guint *replied_msgs,
1234                              guint *forwarded_msgs, guint *locked_msgs,
1235                              guint *ignored_msgs, guint *watched_msgs)
1236 {
1237         struct TotalMsgCount count;
1238
1239         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = 0;
1240         count.total_msgs = count.replied_msgs = count.forwarded_msgs = 0;
1241         count.locked_msgs = count.ignored_msgs = count.watched_msgs = 0;
1242         count.marked_msgs = 0;
1243
1244         debug_print("Counting total number of messages...\n");
1245
1246         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1247
1248         *new_msgs = count.new_msgs;
1249         *unread_msgs = count.unread_msgs;
1250         *unreadmarked_msgs = count.unreadmarked_msgs;
1251         *marked_msgs = count.marked_msgs;
1252         *total_msgs = count.total_msgs;
1253         *replied_msgs = count.replied_msgs;
1254         *forwarded_msgs = count.forwarded_msgs;
1255         *locked_msgs = count.locked_msgs;
1256         *ignored_msgs = count.ignored_msgs;
1257         *watched_msgs = count.watched_msgs;
1258 }
1259
1260 Folder *folder_find_from_path(const gchar *path)
1261 {
1262         GList *list;
1263         Folder *folder;
1264
1265         for (list = folder_list; list != NULL; list = list->next) {
1266                 folder = list->data;
1267                 if ((FOLDER_TYPE(folder) == F_MH || 
1268                      FOLDER_TYPE(folder) == F_MBOX) &&
1269                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1270                         return folder;
1271         }
1272
1273         return NULL;
1274 }
1275
1276 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1277 {
1278         GList *list;
1279         Folder *folder;
1280
1281         for (list = folder_list; list != NULL; list = list->next) {
1282                 folder = list->data;
1283                 if (folder->klass == klass && 
1284                     g_strcmp0(name, folder->name) == 0)
1285                         return folder;
1286         }
1287
1288         return NULL;
1289 }
1290
1291 static gboolean folder_item_find_func(GNode *node, gpointer data)
1292 {
1293         FolderItem *item = node->data;
1294         gpointer *d = data;
1295         const gchar *path = d[0];
1296
1297         if (path_cmp(path, item->path) != 0)
1298                 return FALSE;
1299
1300         d[1] = item;
1301
1302         return TRUE;
1303 }
1304
1305 FolderItem *folder_find_item_from_path(const gchar *path)
1306 {
1307         Folder *folder;
1308         gpointer d[2];
1309         GList *list = folder_get_list();
1310         
1311         folder = list ? list->data:NULL;
1312         
1313         cm_return_val_if_fail(folder != NULL, NULL);
1314
1315         d[0] = (gpointer)path;
1316         d[1] = NULL;
1317         while (d[1] == NULL && list) {
1318                 folder = FOLDER(list->data);
1319                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1320                         folder_item_find_func, d);
1321                 list = list->next;
1322         }
1323         return d[1];
1324 }
1325
1326 static gboolean folder_item_find_func_real_path(GNode *node, gpointer data)
1327 {
1328         FolderItem *item = node->data;
1329         gpointer *d = data;
1330         const gchar *path = d[0];
1331         gchar *tmp = folder_item_get_path(item);
1332         if (path_cmp(path, tmp) != 0) {
1333                 g_free(tmp);
1334                 return FALSE;
1335         }
1336         g_free(tmp);
1337         d[1] = item;
1338
1339         return TRUE;
1340 }
1341
1342 FolderItem *folder_find_item_from_real_path(const gchar *path)
1343 {
1344         Folder *folder;
1345         gpointer d[2];
1346         GList *list = folder_get_list();
1347         
1348         folder = list ? list->data:NULL;
1349         
1350         cm_return_val_if_fail(folder != NULL, NULL);
1351
1352         d[0] = (gpointer)path;
1353         d[1] = NULL;
1354         while (d[1] == NULL && list) {
1355                 folder = FOLDER(list->data);
1356                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1357                         folder_item_find_func_real_path, d);
1358                 list = list->next;
1359         }
1360         return d[1];
1361 }
1362
1363 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1364 {
1365         GNode *node;
1366         FolderItem *child;
1367
1368         for (node = item->node->children; node != NULL; node = node->next) {
1369                 child = FOLDER_ITEM(node->data);
1370                 if (g_strcmp0(child->name, name) == 0) {
1371                         return child;
1372                 }
1373         }
1374
1375         return NULL;
1376 }
1377
1378 FolderClass *folder_get_class_from_string(const gchar *str)
1379 {
1380         GSList *classlist;
1381
1382         classlist = folder_get_class_list();
1383         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1384                 FolderClass *class = (FolderClass *) classlist->data;
1385                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1386                         return class;
1387         }
1388
1389         return NULL;
1390 }
1391
1392 gchar *folder_get_identifier(Folder *folder)
1393 {
1394         gchar *type_str;
1395
1396         cm_return_val_if_fail(folder != NULL, NULL);
1397
1398         type_str = folder->klass->idstr;
1399         return g_strconcat("#", type_str, "/", folder->name, NULL);
1400 }
1401
1402 gchar *folder_item_get_identifier(FolderItem *item)
1403 {
1404         gchar *id = NULL;
1405         gchar *folder_id = NULL;
1406
1407         cm_return_val_if_fail(item != NULL, NULL);
1408
1409         if (item->path == NULL)
1410                 return NULL;
1411
1412         folder_id = folder_get_identifier(item->folder);
1413         id = g_strconcat(folder_id, "/", item->path, NULL);
1414         g_free(folder_id);
1415
1416         return id;
1417 }
1418
1419 Folder *folder_find_from_identifier(const gchar *identifier)
1420 {
1421         gchar *str;
1422         gchar *p;
1423         gchar *name;
1424         FolderClass *class;
1425
1426         cm_return_val_if_fail(identifier != NULL, NULL);
1427
1428         if (*identifier != '#')
1429                 return NULL;
1430
1431         Xstrdup_a(str, identifier, return NULL);
1432
1433         p = strchr(str, '/');
1434         if (!p)
1435                 return NULL;
1436         *p = '\0';
1437         p++;
1438         class = folder_get_class_from_string(&str[1]);
1439         if (class == NULL)
1440                 return NULL;
1441
1442         name = p;
1443         p = strchr(p, '/');
1444         if (p)
1445                 return NULL;
1446
1447         return folder_find_from_name(name, class);
1448 }
1449
1450 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1451 {
1452         Folder *folder;
1453         gpointer d[2];
1454         gchar *str;
1455         gchar *p;
1456         gchar *name;
1457         gchar *path;
1458         FolderClass *class;
1459
1460         cm_return_val_if_fail(identifier != NULL, NULL);
1461
1462         if (*identifier != '#')
1463                 return folder_find_item_from_path(identifier);
1464
1465         Xstrdup_a(str, identifier, return NULL);
1466
1467         p = strchr(str, '/');
1468         if (!p)
1469                 return folder_find_item_from_path(identifier);
1470         *p = '\0';
1471         p++;
1472         class = folder_get_class_from_string(&str[1]);
1473         if (class == NULL)
1474                 return folder_find_item_from_path(identifier);
1475
1476         name = p;
1477         p = strchr(p, '/');
1478         if (!p)
1479                 return folder_find_item_from_path(identifier);
1480         *p = '\0';
1481         p++;
1482
1483         folder = folder_find_from_name(name, class);
1484         if (!folder)
1485                 return folder_find_item_from_path(identifier);
1486
1487         path = p;
1488
1489         d[0] = (gpointer)path;
1490         d[1] = NULL;
1491         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1492                         folder_item_find_func, d);
1493         return d[1];
1494 }
1495
1496 /** Returns the FolderItem from a given identifier
1497  *
1498  * The FolderItem is created if it doesn't already exist.
1499  * If creation failed, the function returns NULL.
1500  * 
1501  * Identifiers are of the form #type/Mailbox/FolderA/FolderB/FolderC
1502  */
1503 FolderItem *folder_get_item_from_identifier(const gchar *identifier)
1504 {
1505         FolderItem *item, *last_parent;
1506         Folder *folder;
1507         gchar *p1, *p2, *str;
1508         size_t len;
1509         FolderClass *class;
1510         gboolean created_something = FALSE;
1511
1512         item = folder_find_item_from_identifier(identifier);
1513         if(item)
1514                 return item;
1515
1516         /* trivial sanity check: need at least # and two slashes */
1517         len = strlen(identifier);
1518         if(len < 3)
1519                 return NULL;
1520
1521         /* make sure identifier ends with a slash */
1522         if(identifier[len-1] == G_DIR_SEPARATOR) {
1523                 Xstrdup_a(str, identifier, return NULL);
1524         }
1525         else {
1526                 Xstrndup_a(str, identifier, len+1, return NULL);
1527                 str[len] = G_DIR_SEPARATOR;
1528         }
1529
1530         /* find folder class */
1531         p1 = strchr(str, G_DIR_SEPARATOR);
1532         if(!p1)
1533                 return NULL;
1534         *p1 = '\0';
1535         class = folder_get_class_from_string(&str[1]);
1536         if(!class)
1537                 return NULL;
1538         *p1 = G_DIR_SEPARATOR;
1539         ++p1;
1540
1541         /* find folder from class and name */
1542         p2 = strchr(p1, G_DIR_SEPARATOR);
1543         if(!p2)
1544                 return NULL;
1545         *p2 = '\0';
1546         folder = folder_find_from_name(p1, class);
1547         if(!folder)
1548                 return NULL;
1549         *p2 = G_DIR_SEPARATOR;
1550         ++p2;
1551         p1 = p2;
1552
1553         /* Now, move forward and make sure all sections in the path exist */
1554         last_parent = folder->node->data;
1555         while((p1 = strchr(p1, G_DIR_SEPARATOR)) != NULL) {
1556                 *p1 = '\0';
1557                 item = folder_find_item_from_identifier(str);
1558                 if(!item) {
1559                         item = folder_create_folder(last_parent, p2);
1560                         if(!item)
1561                                 return NULL;
1562                         debug_print("Created folder '%s'\n", str);
1563                         created_something = TRUE;
1564                         if(prefs_common.inherit_folder_props && (last_parent != item->folder->node->data)) {
1565                                 folder_item_prefs_copy_prefs(last_parent, item);
1566                         }
1567                 }
1568                 last_parent = item;
1569                 *p1 = G_DIR_SEPARATOR;
1570                 ++p1;
1571                 p2 = p1;
1572         }
1573
1574         if(created_something)
1575                 folder_write_list();
1576
1577         return item;
1578 }
1579
1580
1581 /**
1582  * Get a displayable name for a FolderItem
1583  *
1584  * \param item FolderItem for that a name should be created
1585  * \return Displayable name for item, returned string has to
1586  *         be freed
1587  */
1588 gchar *folder_item_get_name(FolderItem *item)
1589 {
1590         gchar *name = NULL;
1591
1592         cm_return_val_if_fail(item != NULL, g_strdup(""));
1593
1594         switch (item->stype) {
1595         case F_INBOX:
1596                 name = g_strdup(!g_strcmp0(item->name, INBOX_DIR) ? _("Inbox") :
1597                                 item->name);
1598                 break;
1599         case F_OUTBOX:
1600                 name = g_strdup(!g_strcmp0(item->name, OUTBOX_DIR) ? _("Sent") :
1601                                 item->name);
1602                 break;
1603         case F_QUEUE:
1604                 name = g_strdup(!g_strcmp0(item->name, QUEUE_DIR) ? _("Queue") :
1605                                 item->name);
1606                 break;
1607         case F_TRASH:
1608                 name = g_strdup(!g_strcmp0(item->name, TRASH_DIR) ? _("Trash") :
1609                                 item->name);
1610                 break;
1611         case F_DRAFT:
1612                 name = g_strdup(!g_strcmp0(item->name, DRAFT_DIR) ? _("Drafts") :
1613                                 item->name);
1614                 break;
1615         default:
1616                 break;
1617         }
1618
1619         if (name == NULL) {
1620                 /*
1621                  * should probably be done by a virtual function,
1622                  * the folder knows the ui string and how to abbrev
1623                 */
1624                 if (folder_item_parent(item) == NULL) {
1625                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1626                 } else {
1627                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1628                             item->path && !g_strcmp0(item->name, item->path))
1629                                 name = get_abbrev_newsgroup_name
1630                                         (item->path,
1631                                          prefs_common.ng_abbrev_len);
1632                         else
1633                                 name = g_strdup(item->name);
1634                 }
1635         }
1636
1637         if (name == NULL)
1638                 name = g_strdup("");
1639
1640         return name;
1641 }
1642
1643 gboolean folder_have_mailbox (void)
1644 {
1645         GList *cur;
1646         for (cur = folder_list; cur != NULL; cur = g_list_next(cur)) {
1647                 Folder *folder = FOLDER(cur->data);
1648                 if (folder->inbox && folder->outbox)
1649                         return TRUE;
1650         }
1651         return FALSE;
1652 }
1653
1654 FolderItem *folder_get_default_inbox(void)
1655 {
1656         GList *flist;
1657
1658         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1659                 Folder * folder = FOLDER(flist->data);
1660
1661                 if (folder == NULL)
1662                         continue;
1663                 if (folder->inbox == NULL)
1664                         continue;
1665                 if (folder->klass->type == F_UNKNOWN)
1666                         continue;
1667
1668                 return folder->inbox;
1669         }
1670
1671         return NULL;
1672 }
1673
1674 FolderItem *folder_get_default_inbox_for_class(FolderType type)
1675 {
1676         GList *flist;
1677
1678         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1679                 Folder * folder = FOLDER(flist->data);
1680
1681                 if (folder == NULL)
1682                         continue;
1683                 if (folder->inbox == NULL)
1684                         continue;
1685                 if (folder->klass->type != type)
1686                         continue;
1687
1688                 return folder->inbox;
1689         }
1690
1691         return NULL;
1692 }
1693
1694 FolderItem *folder_get_default_outbox(void)
1695 {
1696         GList *flist;
1697
1698         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1699                 Folder * folder = FOLDER(flist->data);
1700
1701                 if (folder == NULL)
1702                         continue;
1703                 if (folder->outbox == NULL)
1704                         continue;
1705                 if (folder->klass->type == F_UNKNOWN)
1706                         continue;
1707
1708                 return folder->outbox;
1709         }
1710
1711         return NULL;
1712 }
1713
1714 FolderItem *folder_get_default_outbox_for_class(FolderType type)
1715 {
1716         GList *flist;
1717
1718         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1719                 Folder * folder = FOLDER(flist->data);
1720
1721                 if (folder == NULL)
1722                         continue;
1723                 if (folder->outbox == NULL)
1724                         continue;
1725                 if (folder->klass->type != type)
1726                         continue;
1727
1728                 return folder->outbox;
1729         }
1730
1731         return NULL;
1732 }
1733
1734 FolderItem *folder_get_default_draft(void)
1735 {
1736         GList *flist;
1737
1738         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1739                 Folder * folder = FOLDER(flist->data);
1740
1741                 if (folder == NULL)
1742                         continue;
1743                 if (folder->draft == NULL)
1744                         continue;
1745                 if (folder->klass->type == F_UNKNOWN)
1746                         continue;
1747
1748                 return folder->draft;
1749         }
1750
1751         return NULL;
1752 }
1753
1754 FolderItem *folder_get_default_draft_for_class(FolderType type)
1755 {
1756         GList *flist;
1757
1758         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1759                 Folder * folder = FOLDER(flist->data);
1760
1761                 if (folder == NULL)
1762                         continue;
1763                 if (folder->draft == NULL)
1764                         continue;
1765                 if (folder->klass->type != type)
1766                         continue;
1767
1768                 return folder->draft;
1769         }
1770
1771         return NULL;
1772 }
1773
1774 FolderItem *folder_get_default_queue(void)
1775 {
1776         GList *flist;
1777
1778         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1779                 Folder * folder = FOLDER(flist->data);
1780
1781                 if (folder == NULL)
1782                         continue;
1783                 if (folder->queue == NULL)
1784                         continue;
1785                 if (folder->klass->type == F_UNKNOWN)
1786                         continue;
1787
1788                 return folder->queue;
1789         }
1790
1791         return NULL;
1792 }
1793
1794 FolderItem *folder_get_default_queue_for_class(FolderType type)
1795 {
1796         GList *flist;
1797
1798         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1799                 Folder * folder = FOLDER(flist->data);
1800
1801                 if (folder == NULL)
1802                         continue;
1803                 if (folder->queue == NULL)
1804                         continue;
1805                 if (folder->klass->type != type)
1806                         continue;
1807
1808                 return folder->queue;
1809         }
1810
1811         return NULL;
1812 }
1813
1814 FolderItem *folder_get_default_trash(void)
1815 {
1816         GList *flist;
1817
1818         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1819                 Folder * folder = FOLDER(flist->data);
1820
1821                 if (folder == NULL)
1822                         continue;
1823                 if (folder->trash == NULL)
1824                         continue;
1825                 if (folder->klass->type == F_UNKNOWN)
1826                         continue;
1827
1828                 return folder->trash;
1829         }
1830
1831         return NULL;
1832 }
1833
1834 FolderItem *folder_get_default_trash_for_class(FolderType type)
1835 {
1836         GList *flist;
1837
1838         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1839                 Folder * folder = FOLDER(flist->data);
1840
1841                 if (folder == NULL)
1842                         continue;
1843                 if (folder->trash == NULL)
1844                         continue;
1845                 if (folder->klass->type != type)
1846                         continue;
1847
1848                 return folder->trash;
1849         }
1850
1851         return NULL;
1852 }
1853
1854 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1855 {                                                               \
1856         if (!folder->member) {                                  \
1857                 item = folder_item_new(folder, dir, dir);       \
1858                 item->stype = type;                             \
1859                 folder_item_append(rootitem, item);             \
1860                 folder->member = item;                          \
1861         }                                                       \
1862 }
1863
1864 void folder_set_missing_folders(void)
1865 {
1866         Folder *folder;
1867         FolderItem *rootitem;
1868         FolderItem *item;
1869         GList *list;
1870
1871         for (list = folder_list; list != NULL; list = list->next) {
1872                 folder = list->data;
1873                 if (FOLDER_TYPE(folder) != F_MH) continue;
1874                 rootitem = FOLDER_ITEM(folder->node->data);
1875                 cm_return_if_fail(rootitem != NULL);
1876
1877                 if (folder->inbox && folder->outbox && folder->draft &&
1878                     folder->queue && folder->trash)
1879                         continue;
1880
1881                 if (folder->klass->create_tree(folder) < 0) {
1882                         g_warning("%s: can't create the folder tree",
1883                                   LOCAL_FOLDER(folder)->rootpath);
1884                         continue;
1885                 }
1886
1887                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1888                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1889                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1890                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1891                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1892         }
1893 }
1894
1895 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1896 {
1897         FolderItem *item = node->data;
1898         PrefsAccount *account = data;
1899
1900         if (item->account == account)
1901                 item->account = NULL;
1902
1903         return FALSE;
1904 }
1905
1906 void folder_unref_account_all(PrefsAccount *account)
1907 {
1908         Folder *folder;
1909         GList *list;
1910
1911         if (!account) return;
1912
1913         for (list = folder_list; list != NULL; list = list->next) {
1914                 folder = list->data;
1915                 if (folder->account == account)
1916                         folder->account = NULL;
1917                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1918                                 folder_unref_account_func, account);
1919         }
1920 }
1921
1922 #undef CREATE_FOLDER_IF_NOT_EXIST
1923
1924 gchar *folder_item_get_path(FolderItem *item)
1925 {
1926         Folder *folder;
1927
1928         cm_return_val_if_fail(item != NULL, NULL);
1929         folder = item->folder;
1930         cm_return_val_if_fail(folder != NULL, NULL);
1931
1932         return folder->klass->item_get_path(folder, item);
1933 }
1934
1935 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1936 {
1937         MsgInfo *msginfo_a = (MsgInfo *) a;
1938         MsgInfo *msginfo_b = (MsgInfo *) b;
1939
1940         return (msginfo_a->msgnum - msginfo_b->msgnum);
1941 }
1942
1943 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1944 {
1945         guint gint_a = GPOINTER_TO_INT(a);
1946         guint gint_b = GPOINTER_TO_INT(b);
1947         
1948         return (gint_a - gint_b);
1949 }
1950
1951 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1952 {
1953         GHashTable *relation;
1954         gint ret = 0;
1955         GSList *cur;
1956
1957         if(msglist == NULL)
1958                 return 0;
1959         if(item->folder->klass->get_flags == NULL)
1960                 return 0;
1961         if (item->no_select)
1962                 return 0;
1963
1964         relation = g_hash_table_new(g_direct_hash, g_direct_equal);
1965         if ((ret = item->folder->klass->get_flags(
1966             item->folder, item, msglist, relation)) == 0) {
1967                 gpointer data, old_key;
1968                 MsgInfo *msginfo;
1969                 MsgPermFlags permflags = 0;
1970
1971                 folder_item_update_freeze();
1972                 folder_item_set_batch(item, TRUE);
1973                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1974                         msginfo = (MsgInfo *) cur->data;
1975                 
1976                         if (g_hash_table_lookup_extended(relation, msginfo, &old_key, &data)) {
1977                                 permflags = GPOINTER_TO_INT(data);
1978
1979                                 if (msginfo->flags.perm_flags != permflags) {
1980                                         procmsg_msginfo_change_flags(msginfo,
1981                                                 permflags & ~msginfo->flags.perm_flags, 0,
1982                                                 ~permflags & msginfo->flags.perm_flags, 0);
1983                                 }
1984                         }
1985                 }
1986                 folder_item_set_batch(item, FALSE);
1987                 folder_item_update_thaw();
1988         }
1989         g_hash_table_destroy(relation); 
1990
1991         return ret;
1992 }
1993
1994 static gint folder_item_syncronize_flags(FolderItem *item)
1995 {
1996         MsgInfoList *msglist = NULL;
1997         GSList *cur;
1998         gint ret = 0;
1999         
2000         cm_return_val_if_fail(item != NULL, -1);
2001         cm_return_val_if_fail(item->folder != NULL, -1);
2002         cm_return_val_if_fail(item->folder->klass != NULL, -1);
2003         if (item->no_select)
2004                 return -1;
2005
2006         item->scanning = ITEM_SCANNING_WITH_FLAGS;
2007
2008         if (item->cache == NULL)
2009                 folder_item_read_cache(item);
2010         
2011         msglist = msgcache_get_msg_list(item->cache);
2012         
2013         ret = syncronize_flags(item, msglist);
2014
2015         for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
2016                 procmsg_msginfo_free((MsgInfo **)&(cur->data));
2017         }
2018         
2019         g_slist_free(msglist);
2020
2021         item->scanning = ITEM_NOT_SCANNING;
2022
2023         return ret;
2024 }
2025
2026 static void folder_item_process_open (FolderItem *item,
2027                                  void (*before_proc_func)(gpointer data),
2028                                  void (*after_proc_func)(gpointer data),
2029                                  gpointer data)
2030 {
2031         gchar *buf;
2032         if (item == NULL)
2033                 return;
2034         if((item->folder->klass->scan_required != NULL) &&
2035            (item->folder->klass->scan_required(item->folder, item))) {
2036                 folder_item_scan_full(item, TRUE);
2037         } else {
2038                 folder_item_syncronize_flags(item);
2039         }
2040         
2041         /* Processing */
2042         if (item->prefs->enable_processing_when_opening) {
2043                 buf = g_strdup_printf(_("Processing (%s)...\n"), 
2044                               item->path ? item->path : item->name);
2045                 g_free(buf);
2046
2047                 if (before_proc_func)
2048                         before_proc_func(data);
2049
2050                 folder_item_apply_processing(item);
2051
2052                 if (after_proc_func)
2053                         after_proc_func(data);
2054         }
2055         item->processing_pending = FALSE;
2056         return; 
2057 }
2058
2059 gint folder_item_open(FolderItem *item)
2060 {
2061         START_TIMING(""); 
2062         if (item->no_select)
2063                 return -1;
2064
2065         if (item->scanning != ITEM_NOT_SCANNING) {
2066                 debug_print("%s is scanning... \n", item->path ? item->path : item->name);
2067                 return -2;
2068         }
2069
2070         item->processing_pending = TRUE;
2071         folder_item_process_open (item, NULL, NULL, NULL);
2072         
2073         item->opened = TRUE;
2074         END_TIMING();
2075         return 0;
2076 }
2077
2078 gint folder_item_close(FolderItem *item)
2079 {
2080         GSList *mlist, *cur;
2081         Folder *folder;
2082         
2083         cm_return_val_if_fail(item != NULL, -1);
2084
2085         if (item->no_select)
2086                 return -1;
2087
2088         if (item->new_msgs) {
2089                 folder_item_update_freeze();
2090                 mlist = folder_item_get_msg_list(item);
2091                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
2092                         MsgInfo * msginfo;
2093
2094                         msginfo = (MsgInfo *) cur->data;
2095                         if (MSG_IS_NEW(msginfo->flags))
2096                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
2097                         procmsg_msginfo_free(&msginfo);
2098                 }
2099                 g_slist_free(mlist);
2100                 folder_item_update_thaw();
2101         }               
2102
2103         folder_item_write_cache(item);
2104         
2105         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
2106
2107         item->opened = FALSE;
2108         folder = item->folder;
2109
2110         if (folder->klass->close == NULL)
2111                 return 0;
2112
2113         return folder->klass->close(folder, item);
2114 }
2115
2116 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
2117 {
2118         MsgInfoList *msglist = NULL;
2119         Folder *folder = item->folder;
2120         if (item->no_select)
2121                 return NULL;
2122         
2123         if (folder->klass->get_msginfos != NULL)
2124                 msglist = folder->klass->get_msginfos(folder, item, numlist);
2125         else {
2126                 MsgNumberList *elem;
2127
2128                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
2129                         MsgInfo *msginfo;
2130                         guint num;
2131
2132                         num = GPOINTER_TO_INT(elem->data);
2133                         msginfo = folder->klass->get_msginfo(folder, item, num);
2134                         if (msginfo != NULL)
2135                                 msglist = g_slist_prepend(msglist, msginfo);
2136                 }               
2137         }
2138
2139         return msglist;
2140 }
2141
2142 static MsgInfo *get_msginfo(FolderItem *item, guint num)
2143 {
2144         MsgNumberList numlist;
2145         MsgInfoList *msglist;
2146         MsgInfo *msginfo = NULL;
2147
2148         numlist.data = GINT_TO_POINTER(num);
2149         numlist.next = NULL;
2150         msglist = get_msginfos(item, &numlist);
2151         if (msglist != NULL)
2152                 msginfo = procmsg_msginfo_new_ref(msglist->data);
2153         procmsg_msg_list_free(msglist);
2154
2155         return msginfo;
2156 }
2157
2158 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
2159 {
2160         Folder *folder;
2161         GSList *folder_list = NULL, *cache_list = NULL;
2162         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
2163         GSList *exists_list = NULL, *elem;
2164         GSList *newmsg_list = NULL;
2165         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
2166         guint markedcnt = 0, unreadmarkedcnt = 0;
2167         guint repliedcnt = 0, forwardedcnt = 0;
2168         guint lockedcnt = 0, ignoredcnt = 0, watchedcnt = 0;
2169
2170         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
2171         gboolean update_flags = 0, old_uids_valid = FALSE;
2172         GHashTable *subject_table = NULL;
2173         
2174         cm_return_val_if_fail(item != NULL, -1);
2175         if (item->path == NULL) return -1;
2176
2177         folder = item->folder;
2178
2179         cm_return_val_if_fail(folder != NULL, -1);
2180         cm_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
2181
2182         item->scanning = ITEM_SCANNING_WITH_FLAGS;
2183
2184         debug_print("Scanning folder %s for cache changes.\n", item->path ? item->path : "(null)");
2185         
2186         /* Get list of messages for folder and cache */
2187         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
2188                 debug_print("Error fetching list of message numbers\n");
2189                 item->scanning = ITEM_NOT_SCANNING;
2190                 return(-1);
2191         }
2192
2193         if(prefs_common.thread_by_subject) {
2194                 subject_table = g_hash_table_new(g_str_hash, g_str_equal);
2195         }
2196         
2197         if (old_uids_valid) {
2198                 if (!item->cache)
2199                         folder_item_read_cache(item);
2200                 cache_list = msgcache_get_msg_list(item->cache);
2201         } else {
2202                 if (item->cache)
2203                         msgcache_destroy(item->cache);
2204                 item->cache = msgcache_new();
2205                 item->cache_dirty = TRUE;
2206                 item->mark_dirty = TRUE;
2207                 item->tags_dirty = TRUE;
2208                 cache_list = NULL;
2209         }
2210
2211         /* Sort both lists */
2212         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
2213         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
2214
2215         cache_list_cur = cache_list;
2216         folder_list_cur = folder_list;
2217
2218         if (cache_list_cur != NULL) {
2219                 GSList *cache_list_last;
2220         
2221                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2222                 cache_list_last = g_slist_last(cache_list);
2223                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
2224         } else {
2225                 cache_cur_num = G_MAXUINT;
2226                 cache_max_num = 0;
2227         }
2228
2229         if (folder_list_cur != NULL) {
2230                 GSList *folder_list_last;
2231         
2232                 folder_cur_num = GPOINTER_TO_UINT(folder_list_cur->data);
2233                 folder_list_last = g_slist_last(folder_list);
2234                 folder_max_num = GPOINTER_TO_UINT(folder_list_last->data);
2235         } else {
2236                 folder_cur_num = G_MAXUINT;
2237                 folder_max_num = 0;
2238         }
2239
2240         while ((cache_cur_num != G_MAXUINT) || (folder_cur_num != G_MAXUINT)) {
2241                 /*
2242                  *  Message only exists in the folder
2243                  *  Remember message for fetching
2244                  */
2245                 if (folder_cur_num < cache_cur_num) {
2246                         gboolean add = FALSE;
2247
2248                         switch(FOLDER_TYPE(folder)) {
2249                                 case F_NEWS:
2250                                         if (folder_cur_num < cache_max_num)
2251                                                 break;
2252                                         
2253                                         if (folder->account->max_articles == 0) {
2254                                                 add = TRUE;
2255                                         }
2256
2257                                         if (folder_max_num <= folder->account->max_articles) {
2258                                                 add = TRUE;
2259                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
2260                                                 add = TRUE;
2261                                         }
2262                                         break;
2263                                 default:
2264                                         add = TRUE;
2265                                         break;
2266                         }
2267                         
2268                         if (add) {
2269                                 new_list = g_slist_prepend(new_list, GUINT_TO_POINTER(folder_cur_num));
2270                                 debug_print("Remembered message %u for fetching\n", folder_cur_num);
2271                         }
2272
2273                         /* Move to next folder number */
2274                         if (folder_list_cur)
2275                                 folder_list_cur = folder_list_cur->next;
2276
2277                         if (folder_list_cur != NULL)
2278                                 folder_cur_num = GPOINTER_TO_UINT(folder_list_cur->data);
2279                         else
2280                                 folder_cur_num = G_MAXUINT;
2281
2282                         continue;
2283                 }
2284
2285                 /*
2286                  *  Message only exists in the cache
2287                  *  Remove the message from the cache
2288                  */
2289                 if (cache_cur_num < folder_cur_num) {
2290                         msgcache_remove_msg(item->cache, cache_cur_num);
2291                         debug_print("Removed message %u from cache.\n", cache_cur_num);
2292
2293                         /* Move to next cache number */
2294                         if (cache_list_cur)
2295                                 cache_list_cur = cache_list_cur->next;
2296
2297                         if (cache_list_cur != NULL)
2298                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2299                         else
2300                                 cache_cur_num = G_MAXUINT;
2301
2302                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2303
2304                         continue;
2305                 }
2306
2307                 /*
2308                  *  Message number exists in folder and cache!
2309                  *  Check if the message has been modified
2310                  */
2311                 if (cache_cur_num == folder_cur_num) {
2312                         MsgInfo *msginfo;
2313
2314                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
2315                         if (msginfo && folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
2316                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2317                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
2318                                 procmsg_msginfo_free(&msginfo);
2319
2320                                 debug_print("Remembering message %u to update...\n", folder_cur_num);
2321                         } else if (msginfo) {
2322                                 exists_list = g_slist_prepend(exists_list, msginfo);
2323
2324                                 if(prefs_common.thread_by_subject &&
2325                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2326                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2327                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2328                                 }
2329                         }
2330                         
2331                         /* Move to next folder and cache number */
2332                         if (cache_list_cur)
2333                                 cache_list_cur = cache_list_cur->next;
2334                         
2335                         if (folder_list_cur)
2336                                 folder_list_cur = folder_list_cur->next;
2337
2338                         if (cache_list_cur != NULL)
2339                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
2340                         else
2341                                 cache_cur_num = G_MAXUINT;
2342
2343                         if (folder_list_cur != NULL)
2344                                 folder_cur_num = GPOINTER_TO_UINT(folder_list_cur->data);
2345                         else
2346                                 folder_cur_num = G_MAXUINT;
2347
2348                         continue;
2349                 }
2350         }
2351         
2352         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
2353                 procmsg_msginfo_free((MsgInfo **)&(cache_list_cur->data));
2354
2355         g_slist_free(cache_list);
2356         g_slist_free(folder_list);
2357
2358         if (new_list != NULL) {
2359                 GSList *tmp_list = NULL;
2360                 newmsg_list = get_msginfos(item, new_list);
2361                 g_slist_free(new_list);
2362                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
2363                 syncronize_flags(item, tmp_list);
2364                 g_slist_free(tmp_list);
2365         } else {
2366                 syncronize_flags(item, exists_list);
2367         }
2368
2369         folder_item_update_freeze();
2370         
2371         item->scanning = ITEM_SCANNING;
2372
2373         if (newmsg_list != NULL) {
2374                 GSList *elem, *to_filter = NULL;
2375                 gboolean do_filter = (filtering == TRUE) &&
2376                         (item->folder->account != NULL) &&
2377                         (item->folder->account->filter_on_recv) &&
2378                         ((item->stype == F_INBOX) ||
2379                          ((item->stype == F_NORMAL) &&
2380                           (FOLDER_TYPE(item->folder) == F_NEWS)));
2381
2382                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
2383                         MsgInfo *msginfo = (MsgInfo *) elem->data;
2384
2385                         msgcache_add_msg(item->cache, msginfo);
2386                         if (!do_filter) {
2387                                 exists_list = g_slist_prepend(exists_list, msginfo);
2388
2389                                 if(prefs_common.thread_by_subject &&
2390                                         MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2391                                         !subject_table_lookup(subject_table, msginfo->subject)) {
2392                                         subject_table_insert(subject_table, msginfo->subject, msginfo);
2393                                 }                       
2394                         }
2395                 }
2396
2397                 if (do_filter) {
2398                         GSList *unfiltered;
2399                         
2400                         folder_item_set_batch(item, TRUE);
2401                         procmsg_msglist_filter(newmsg_list, item->folder->account, 
2402                                         &to_filter, &unfiltered, 
2403                                         TRUE);
2404                         folder_item_set_batch(item, FALSE);
2405                         
2406                         filtering_move_and_copy_msgs(newmsg_list);
2407                         if (to_filter != NULL) {
2408                                 for (elem = to_filter; elem; elem = g_slist_next(elem)) {
2409                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2410                                         procmsg_msginfo_free(&msginfo);
2411                                 }
2412                                 g_slist_free(to_filter);
2413                         }
2414                         if (unfiltered != NULL) {
2415                                 for (elem = unfiltered; elem; elem = g_slist_next(elem)) {
2416                                         MsgInfo *msginfo = (MsgInfo *)elem->data;
2417                                         exists_list = g_slist_prepend(exists_list, msginfo);
2418
2419                                         if(prefs_common.thread_by_subject &&
2420                                                 MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2421                                                 !subject_table_lookup(subject_table, msginfo->subject)) {
2422                                                 subject_table_insert(subject_table, msginfo->subject, msginfo);
2423                                         }
2424                                 }
2425                                 g_slist_free(unfiltered);
2426                         }
2427                         if (prefs_common.real_time_sync)
2428                                 folder_item_synchronise(item);
2429                 } else {
2430                         if (prefs_common.real_time_sync)
2431                                 folder_item_synchronise(item);
2432                 }
2433
2434                 g_slist_free(newmsg_list);
2435
2436                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
2437         }
2438
2439         folder_item_set_batch(item, TRUE);
2440         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
2441                 MsgInfo *msginfo, *parent_msginfo;
2442
2443                 msginfo = elem->data;
2444                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2445                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2446                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
2447                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
2448                 }
2449                 if (!MSG_IS_WATCH_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_WATCH_THREAD)) {
2450                         procmsg_msginfo_set_flags(msginfo, MSG_WATCH_THREAD, 0);
2451                 }
2452                 if(prefs_common.thread_by_subject && !msginfo->inreplyto &&
2453                         !msginfo->references && !MSG_IS_IGNORE_THREAD(msginfo->flags) &&
2454                         (parent_msginfo = subject_table_lookup(subject_table, msginfo->subject)))
2455                 {
2456                         if(MSG_IS_IGNORE_THREAD(parent_msginfo->flags)) {
2457                                 procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0,
2458                                                 MSG_NEW | MSG_UNREAD, 0);
2459                         }
2460                 }
2461                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
2462                      folder_has_parent_of_type(item, F_QUEUE)  ||
2463                      folder_has_parent_of_type(item, F_TRASH)) &&
2464                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
2465                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
2466                 if (MSG_IS_NEW(msginfo->flags))
2467                         newcnt++;
2468                 if (MSG_IS_UNREAD(msginfo->flags))
2469                         unreadcnt++;
2470                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2471                         unreadmarkedcnt++;
2472                 if (MSG_IS_MARKED(msginfo->flags))
2473                         markedcnt++;
2474                 if (MSG_IS_REPLIED(msginfo->flags))
2475                         repliedcnt++;
2476                 if (MSG_IS_FORWARDED(msginfo->flags))
2477                         forwardedcnt++;
2478                 if (MSG_IS_LOCKED(msginfo->flags))
2479                         lockedcnt++;
2480                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2481                         ignoredcnt++;
2482                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2483                         watchedcnt++;
2484
2485                 totalcnt++;
2486
2487                 procmsg_msginfo_free(&msginfo);
2488         }
2489         folder_item_set_batch(item, FALSE);
2490         g_slist_free(exists_list);
2491         
2492         if(prefs_common.thread_by_subject) {
2493                 g_hash_table_destroy(subject_table);
2494         }
2495         
2496         if (item->new_msgs != newcnt || item->unread_msgs != unreadcnt
2497         ||  item->total_msgs != totalcnt || item->marked_msgs != markedcnt
2498         ||  item->unreadmarked_msgs != unreadmarkedcnt
2499         ||  item->replied_msgs != repliedcnt || item->forwarded_msgs != forwardedcnt
2500         ||  item->locked_msgs != lockedcnt || item->ignored_msgs != ignoredcnt
2501         ||  item->watched_msgs != watchedcnt) {
2502                 update_flags |= F_ITEM_UPDATE_CONTENT;
2503         }
2504
2505         item->new_msgs = newcnt;
2506         item->unread_msgs = unreadcnt;
2507         item->total_msgs = totalcnt;
2508         item->unreadmarked_msgs = unreadmarkedcnt;
2509         item->marked_msgs = markedcnt;
2510         item->replied_msgs = repliedcnt;
2511         item->forwarded_msgs = forwardedcnt;
2512         item->locked_msgs = lockedcnt;
2513         item->ignored_msgs = ignoredcnt;
2514         item->watched_msgs = watchedcnt;
2515
2516         update_flags |= F_ITEM_UPDATE_MSGCNT;
2517
2518         folder_item_update(item, update_flags);
2519         folder_item_update_thaw();
2520         
2521         item->scanning = ITEM_NOT_SCANNING;
2522
2523         return 0;
2524 }
2525
2526 gint folder_item_scan(FolderItem *item)
2527 {
2528         return folder_item_scan_full(item, TRUE);
2529 }
2530
2531 static void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
2532 {
2533         gint *memusage = (gint *)data;
2534
2535         if (item->cache == NULL)
2536                 return;
2537         
2538         *memusage += msgcache_get_memory_usage(item->cache);
2539 }
2540
2541 static gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
2542 {
2543         FolderItem *fa = (FolderItem *)a;
2544         FolderItem *fb = (FolderItem *)b;
2545         
2546         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
2547 }
2548
2549 static void folder_find_expired_caches(FolderItem *item, gpointer data)
2550 {
2551         GSList **folder_item_list = (GSList **)data;
2552         gint difftime, expiretime;
2553         
2554         if (item->cache == NULL)
2555                 return;
2556
2557         if (item->opened > 0)
2558                 return;
2559
2560         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
2561         expiretime = prefs_common.cache_min_keep_time * 60;
2562         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
2563
2564         if (difftime > expiretime && !item->opened && !item->processing_pending) {
2565                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
2566         }
2567 }
2568
2569 gboolean folder_item_free_cache(FolderItem *item, gboolean force)
2570 {
2571         cm_return_val_if_fail(item != NULL, TRUE);
2572         
2573         if (item->cache == NULL)
2574                 return TRUE;
2575         
2576         if (item->opened > 0 && !force)
2577                 return FALSE;
2578
2579         folder_item_write_cache(item);
2580         msgcache_destroy(item->cache);
2581         item->cache = NULL;
2582         return TRUE;
2583 }
2584
2585 void folder_clean_cache_memory_force(void)
2586 {
2587         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2588         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2589
2590         prefs_common.cache_max_mem_usage = 0;
2591         prefs_common.cache_min_keep_time = 0;
2592
2593         folder_clean_cache_memory(NULL);
2594
2595         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2596         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2597 }
2598
2599 void folder_clean_cache_memory(FolderItem *protected_item)
2600 {
2601         gint memusage = 0;
2602
2603         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);       
2604         debug_print("Total cache memory usage: %d\n", memusage);
2605         
2606         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2607                 GSList *folder_item_list = NULL, *listitem;
2608                 
2609                 debug_print("Trying to free cache memory\n");
2610
2611                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);      
2612                 listitem = folder_item_list;
2613                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2614                         FolderItem *item = (FolderItem *)(listitem->data);
2615                         gint cache_size = 0;
2616                         if (item == protected_item) {
2617                                 listitem = listitem->next;
2618                                 continue;
2619                         }
2620                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2621                         cache_size = msgcache_get_memory_usage(item->cache);
2622                         if (folder_item_free_cache(item, FALSE))
2623                                 memusage -= cache_size;
2624
2625                         listitem = listitem->next;
2626                 }
2627                 g_slist_free(folder_item_list);
2628         }
2629 }
2630
2631 static void folder_item_remove_cached_msg(FolderItem *item, MsgInfo *msginfo)
2632 {
2633         Folder *folder = item->folder;
2634
2635         cm_return_if_fail(folder != NULL);
2636
2637         if (folder->klass->remove_cached_msg == NULL)
2638                 return;
2639         
2640         folder->klass->remove_cached_msg(folder, item, msginfo);
2641 }
2642
2643 static void folder_item_clean_local_files(FolderItem *item, gint days)
2644 {
2645         cm_return_if_fail(item != NULL);
2646         cm_return_if_fail(item->folder != NULL);
2647
2648         if (FOLDER_TYPE(item->folder) == F_IMAP ||
2649             FOLDER_TYPE(item->folder) == F_NEWS) {
2650                 GSList *msglist = folder_item_get_msg_list(item);
2651                 GSList *cur;
2652                 time_t t = time(NULL);
2653                 for (cur = msglist; cur; cur = cur->next) {
2654                         MsgInfo *msginfo = (MsgInfo *)cur->data;
2655                         gint age = (t - msginfo->date_t) / (60*60*24);
2656                         if (age > days)
2657                                 folder_item_remove_cached_msg(item, msginfo);
2658                 }
2659                 procmsg_msg_list_free(msglist);
2660         }
2661 }
2662
2663 static void folder_item_read_cache(FolderItem *item)
2664 {
2665         gchar *cache_file, *mark_file, *tags_file;
2666         START_TIMING("");
2667         cm_return_if_fail(item != NULL);
2668
2669         if (item->path != NULL) {
2670                 cache_file = folder_item_get_cache_file(item);
2671                 mark_file = folder_item_get_mark_file(item);
2672                 tags_file = folder_item_get_tags_file(item);
2673                 item->cache = msgcache_read_cache(item, cache_file);
2674                 item->cache_dirty = FALSE;
2675                 item->mark_dirty = FALSE;
2676                 item->tags_dirty = FALSE;
2677                 if (!item->cache) {
2678                         MsgInfoList *list, *cur;
2679                         guint newcnt = 0, unreadcnt = 0;
2680                         guint markedcnt = 0, unreadmarkedcnt = 0;
2681                         guint repliedcnt = 0, forwardedcnt = 0;
2682                         guint lockedcnt = 0, ignoredcnt = 0;
2683                         guint watchedcnt = 0;
2684                         MsgInfo *msginfo;
2685
2686                         item->cache = msgcache_new();
2687                         item->cache_dirty = TRUE;
2688                         item->mark_dirty = TRUE;
2689                         item->tags_dirty = TRUE;
2690                         folder_item_scan_full(item, TRUE);
2691
2692                         msgcache_read_mark(item->cache, mark_file);
2693
2694                         list = msgcache_get_msg_list(item->cache);
2695                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2696                                 msginfo = cur->data;
2697
2698                                 if (MSG_IS_NEW(msginfo->flags))
2699                                         newcnt++;
2700                                 if (MSG_IS_UNREAD(msginfo->flags))
2701                                         unreadcnt++;
2702                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2703                                         unreadmarkedcnt++;
2704                                 if (MSG_IS_MARKED(msginfo->flags))
2705                                         markedcnt++;
2706                                 if (MSG_IS_REPLIED(msginfo->flags))
2707                                         repliedcnt++;
2708                                 if (MSG_IS_FORWARDED(msginfo->flags))
2709                                         forwardedcnt++;
2710                                 if (MSG_IS_LOCKED(msginfo->flags))
2711                                         lockedcnt++;
2712                                 if (MSG_IS_IGNORE_THREAD(msginfo->flags))
2713                                         ignoredcnt++;
2714                                 if (MSG_IS_WATCH_THREAD(msginfo->flags))
2715                                         watchedcnt++;
2716                                 procmsg_msginfo_unset_flags(msginfo, MSG_FULLY_CACHED, 0);
2717                         }
2718                         item->new_msgs = newcnt;
2719                         item->unread_msgs = unreadcnt;
2720                         item->unreadmarked_msgs = unreadmarkedcnt;
2721                         item->marked_msgs = markedcnt;
2722                         item->replied_msgs = repliedcnt;
2723                         item->forwarded_msgs = forwardedcnt;
2724                         item->locked_msgs = lockedcnt;
2725                         item->ignored_msgs = ignoredcnt;
2726                         item->watched_msgs = watchedcnt;
2727                         procmsg_msg_list_free(list);
2728                 } else
2729                         msgcache_read_mark(item->cache, mark_file);
2730
2731                 msgcache_read_tags(item->cache, tags_file);
2732
2733                 g_free(cache_file);
2734                 g_free(mark_file);
2735                 g_free(tags_file);
2736         } else {
2737                 item->cache = msgcache_new();
2738                 item->cache_dirty = TRUE;
2739                 item->mark_dirty = TRUE;
2740                 item->tags_dirty = TRUE;
2741         }
2742
2743         END_TIMING();
2744         folder_clean_cache_memory(item);
2745 }
2746
2747 void folder_item_write_cache(FolderItem *item)
2748 {
2749         gchar *cache_file = NULL, *mark_file = NULL, *tags_file = NULL;
2750         FolderItemPrefs *prefs;
2751         gint filemode = 0;
2752         gchar *id;
2753         time_t last_mtime = (time_t)0;
2754         gboolean need_scan = FALSE;
2755         
2756         if (!item || !item->path || !item->cache)
2757                 return;
2758
2759         last_mtime = item->mtime;
2760         if (item->folder->klass->set_mtime) {
2761                 if (item->folder->klass->scan_required)
2762                         need_scan = item->folder->klass->scan_required(item->folder, item);
2763                 else
2764                         need_scan = TRUE;
2765         }
2766
2767         id = folder_item_get_identifier(item);
2768         debug_print("Save cache for folder %s\n", id);
2769         g_free(id);
2770
2771         if (item->cache_dirty)
2772                 cache_file = folder_item_get_cache_file(item);
2773         if (item->cache_dirty || item->mark_dirty)
2774                 mark_file = folder_item_get_mark_file(item);
2775         if (item->cache_dirty || item->tags_dirty)
2776                 tags_file = folder_item_get_tags_file(item);
2777         if (msgcache_write(cache_file, mark_file, tags_file, item->cache) == 0) {
2778                 prefs = item->prefs;
2779                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2780                         filemode = prefs->folder_chmod;
2781                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2782                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2783                         if (cache_file) {
2784                                 if (chmod(cache_file, filemode) < 0)
2785                                         FILE_OP_ERROR(cache_file, "chmod");
2786                         }
2787                         if (mark_file) {
2788                                 if (chmod(mark_file, filemode) < 0)
2789                                         FILE_OP_ERROR(mark_file, "chmod");
2790                         }
2791                 }
2792         } else {
2793                 item->cache_dirty = TRUE;
2794                 item->mark_dirty = TRUE;
2795                 item->tags_dirty = TRUE;
2796         }
2797
2798         if (!need_scan && item->folder->klass->set_mtime) {
2799                 if (item->mtime == last_mtime) {
2800                         item->folder->klass->set_mtime(item->folder, item);
2801                 }
2802         }
2803
2804         g_free(cache_file);
2805         g_free(mark_file);
2806         g_free(tags_file);
2807 }
2808
2809 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2810 {
2811         MsgInfo *msginfo = NULL;
2812         
2813         cm_return_val_if_fail(item != NULL, NULL);
2814         if (item->no_select)
2815                 return NULL;
2816         if (!item->cache)
2817                 folder_item_read_cache(item);
2818         
2819         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2820                 return msginfo;
2821         
2822         msginfo = get_msginfo(item, num);
2823         if (msginfo != NULL) {
2824                 msgcache_add_msg(item->cache, msginfo);
2825                 return msginfo;
2826         }
2827         
2828         return NULL;
2829 }
2830
2831 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2832 {
2833         MsgInfo *msginfo;
2834         
2835         cm_return_val_if_fail(item != NULL, NULL);
2836         cm_return_val_if_fail(msgid != NULL, NULL);
2837         if (item->no_select)
2838                 return NULL;
2839         
2840         if (!item->cache)
2841                 folder_item_read_cache(item);
2842         
2843         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2844                 return msginfo;
2845
2846         return NULL;
2847 }
2848
2849 GSList *folder_item_get_msg_list(FolderItem *item)
2850 {
2851         cm_return_val_if_fail(item != NULL, NULL);
2852         if (item->no_select)
2853                 return NULL;
2854         
2855         if (item->cache == 0)
2856                 folder_item_read_cache(item);
2857
2858         cm_return_val_if_fail(item->cache != NULL, NULL);
2859         
2860         return msgcache_get_msg_list(item->cache);
2861 }
2862
2863 static void msginfo_set_mime_flags(GNode *node, gpointer data)
2864 {
2865         MsgInfo *msginfo = data;
2866         MimeInfo *mimeinfo = node->data;
2867         
2868         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT &&
2869             (!mimeinfo->subtype || (strcmp(mimeinfo->subtype, "pgp-signature") &&
2870              strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2871              strcmp(mimeinfo->subtype, "pkcs7-signature")))) {
2872                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2873         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN && 
2874                  mimeinfo->id == NULL &&
2875                  mimeinfo->type != MIMETYPE_TEXT &&
2876                  mimeinfo->type != MIMETYPE_MULTIPART) {
2877                 if (!mimeinfo->subtype 
2878                 || (strcmp(mimeinfo->subtype, "pgp-signature") && 
2879                     strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2880                     strcmp(mimeinfo->subtype, "pkcs7-signature")))
2881                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2882         } else if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE &&
2883                  mimeinfo->id == NULL &&
2884                 (strcmp(mimeinfo->subtype, "pgp-signature") &&
2885                  strcmp(mimeinfo->subtype, "x-pkcs7-signature") &&
2886                  strcmp(mimeinfo->subtype, "pkcs7-signature")) && 
2887                 (procmime_mimeinfo_get_parameter(mimeinfo, "name") != NULL ||
2888                  procmime_mimeinfo_get_parameter(mimeinfo, "filename") != NULL)) {
2889                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2890         }
2891
2892         /* don't descend below top level message for signed and encrypted info */
2893         if (mimeinfo->type == MIMETYPE_MESSAGE)
2894                 return;
2895
2896         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2897                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2898         }
2899
2900         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2901                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2902         } else {
2903                 /* searching inside encrypted parts doesn't really make sense */
2904                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2905         }
2906 }
2907
2908 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2909 {
2910         Folder *folder;
2911         gchar *msgfile;
2912         MsgInfo *msginfo;
2913
2914         cm_return_val_if_fail(item != NULL, NULL);
2915
2916         folder = item->folder;
2917
2918         cm_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2919         if (item->no_select)
2920                 return NULL;
2921
2922         msgfile = folder->klass->fetch_msg(folder, item, num);
2923
2924         if (msgfile != NULL) {
2925                 msginfo = folder_item_get_msginfo(item, num);
2926                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2927                         MimeInfo *mimeinfo;
2928
2929                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) && 
2930                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2931                                 mimeinfo = procmime_scan_file(msgfile);
2932                         else
2933                                 mimeinfo = procmime_scan_queue_file(msgfile);
2934                         /* check for attachments */
2935                         if (mimeinfo != NULL) { 
2936                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2937                                 procmime_mimeinfo_free_all(&mimeinfo);
2938
2939                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2940                         }
2941                 }
2942                 procmsg_msginfo_free(&msginfo);
2943         }
2944
2945         return msgfile;
2946 }
2947
2948 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2949                                   gboolean body)
2950 {
2951         Folder *folder;
2952         gchar *msgfile;
2953         MsgInfo *msginfo;
2954
2955         cm_return_val_if_fail(item != NULL, NULL);
2956         if (item->no_select)
2957                 return NULL;
2958         
2959         folder = item->folder;
2960
2961         if (folder->klass->fetch_msg_full == NULL)
2962                 return folder_item_fetch_msg(item, num);
2963
2964         if (item->prefs->offlinesync && prefs_common.real_time_sync)
2965                 msgfile = folder->klass->fetch_msg_full(folder, item, num, 
2966                                                 TRUE, TRUE);
2967         else
2968                 msgfile = folder->klass->fetch_msg_full(folder, item, num, 
2969                                                 headers, body);
2970
2971         if (msgfile != NULL) {
2972                 msginfo = folder_item_get_msginfo(item, num);
2973                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2974                         MimeInfo *mimeinfo;
2975
2976                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2977                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2978                                 mimeinfo = procmime_scan_file(msgfile);
2979                         else
2980                                 mimeinfo = procmime_scan_queue_file(msgfile);
2981                         /* check for attachments */
2982                         if (mimeinfo != NULL) { 
2983                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2984                                 procmime_mimeinfo_free_all(&mimeinfo);
2985
2986                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2987                         }
2988                 }
2989                 procmsg_msginfo_free(&msginfo);
2990         }
2991
2992         return msgfile;
2993 }
2994
2995
2996 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2997 {
2998         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2999                                        {NULL,           NULL, FALSE}};
3000         FILE *fp;
3001         MsgInfo *msginfo;
3002         gint msgnum = 0;
3003         gchar buf[BUFFSIZE];
3004
3005         if ((fp = claws_fopen(file, "rb")) == NULL)
3006                 return 0;
3007
3008         if ((folder_has_parent_of_type(dest, F_QUEUE)) || 
3009             (folder_has_parent_of_type(dest, F_DRAFT)))
3010                 while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
3011                         /* new way */
3012                         if ((!strncmp(buf, "X-Claws-End-Special-Headers: 1",
3013                                 strlen("X-Claws-End-Special-Headers:"))) ||
3014                             (!strncmp(buf, "X-Sylpheed-End-Special-Headers: 1",
3015                                 strlen("X-Sylpheed-End-Special-Headers:"))))
3016                                 break;
3017                         /* old way */
3018                         if (buf[0] == '\r' || buf[0] == '\n') break;
3019                         /* from other mailers */
3020                         if (!strncmp(buf, "Date: ", 6)
3021                         ||  !strncmp(buf, "To: ", 4)
3022                         ||  !strncmp(buf, "From: ", 6)
3023                         ||  !strncmp(buf, "Subject: ", 9)) {
3024                                 rewind(fp);
3025                                 break;
3026                         }
3027                 }
3028
3029         procheader_get_header_fields(fp, hentry);
3030         debug_print("looking for %s\n", hentry[0].body);
3031         if (hentry[0].body) {
3032                 extract_parenthesis(hentry[0].body, '<', '>');
3033                 remove_space(hentry[0].body);
3034                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
3035                         msgnum = msginfo->msgnum;
3036                         procmsg_msginfo_free(&msginfo);
3037
3038                         debug_print("found message as uid %d\n", msgnum);
3039                 }
3040         }
3041         
3042         g_free(hentry[0].body);
3043         hentry[0].body = NULL;
3044         claws_fclose(fp);
3045
3046         return msgnum;
3047 }
3048
3049 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
3050 {
3051         MsgPermFlags perm_flags = 0;
3052         MsgTmpFlags tmp_flags = 0;
3053
3054         /* create new flags */
3055         if (source != NULL) {
3056                 /* copy original flags */
3057                 perm_flags = source->flags.perm_flags;
3058                 tmp_flags = source->flags.tmp_flags;
3059         } else {
3060                 perm_flags = dest->flags.perm_flags;
3061                 tmp_flags = dest->flags.tmp_flags;
3062         }
3063
3064         /* remove new, unread and deleted in special folders */
3065         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) || 
3066             folder_has_parent_of_type(dest->folder, F_QUEUE) || 
3067             folder_has_parent_of_type(dest->folder, F_DRAFT) || 
3068             folder_has_parent_of_type(dest->folder, F_TRASH))
3069                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
3070
3071         /* set ignore flag of ignored parent exists */
3072         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
3073                 perm_flags |= MSG_IGNORE_THREAD;
3074
3075         /* unset FULLY_CACHED flags */
3076         perm_flags &= ~MSG_FULLY_CACHED;
3077
3078         if (procmsg_msg_has_flagged_parent(dest, MSG_WATCH_THREAD))
3079                 perm_flags |= MSG_WATCH_THREAD;
3080
3081         /* Unset tmp flags that should not be copied */
3082         tmp_flags &= ~(MSG_MOVE | MSG_COPY | MSG_MOVE_DONE);
3083
3084         /* unset flags that are set but should not */
3085         /* and set new flags */
3086         procmsg_msginfo_change_flags(dest,
3087                                   ~dest->flags.perm_flags & perm_flags,
3088                                   ~dest->flags.tmp_flags  & tmp_flags,
3089                                    dest->flags.perm_flags & ~perm_flags,
3090                                    dest->flags.tmp_flags  & ~tmp_flags);
3091         
3092         if (source && source->tags) {
3093                 g_slist_free(dest->tags);
3094                 dest->tags = g_slist_copy(source->tags);
3095                 folder_item_commit_tags(dest->folder, dest, dest->tags, NULL);
3096         }
3097 }
3098
3099 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
3100 {
3101         /* update folder stats */
3102         if (MSG_IS_NEW(newmsginfo->flags))
3103                 item->new_msgs++;
3104         if (MSG_IS_UNREAD(newmsginfo->flags))
3105                 item->unread_msgs++;
3106         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
3107                 item->unreadmarked_msgs++;
3108         if (MSG_IS_MARKED(newmsginfo->flags))
3109                 item->marked_msgs++;
3110         if (MSG_IS_REPLIED(newmsginfo->flags))
3111                 item->replied_msgs++;
3112         if (MSG_IS_FORWARDED(newmsginfo->flags))
3113                 item->forwarded_msgs++;
3114         if (MSG_IS_LOCKED(newmsginfo->flags))
3115                 item->locked_msgs++;
3116         if (MSG_IS_IGNORE_THREAD(newmsginfo->flags))
3117                 item->ignored_msgs++;
3118         if (MSG_IS_WATCH_THREAD(newmsginfo->flags))
3119                 item->watched_msgs++;
3120         item->total_msgs++;
3121
3122         folder_item_update_freeze();
3123
3124         if (!item->cache)
3125                 folder_item_read_cache(item);
3126
3127         msgcache_add_msg(item->cache, newmsginfo);
3128         copy_msginfo_flags(flagsource, newmsginfo);
3129         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
3130         folder_item_update_thaw();
3131 }
3132
3133 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
3134 {
3135         MsgInfoUpdate msginfo_update;
3136
3137         if (!item->cache)
3138                 folder_item_read_cache(item);
3139
3140         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
3141                 msginfo->folder->new_msgs--;
3142         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
3143                 msginfo->folder->unread_msgs--;
3144         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
3145                 msginfo->folder->unreadmarked_msgs--;
3146         if (MSG_IS_MARKED(msginfo->flags))
3147                 item->marked_msgs--;
3148         if (MSG_IS_REPLIED(msginfo->flags))
3149                 item->replied_msgs--;
3150         if (MSG_IS_FORWARDED(msginfo->flags))
3151                 item->forwarded_msgs--;
3152         if (MSG_IS_LOCKED(msginfo->flags))
3153                 item->locked_msgs--;
3154         if (MSG_IS_IGNORE_THREAD(msginfo->flags))
3155                 item->ignored_msgs--;
3156         if (MSG_IS_WATCH_THREAD(msginfo->flags))
3157                 item->watched_msgs--;
3158
3159         msginfo->folder->total_msgs--;
3160
3161         msginfo_update.msginfo = msginfo;
3162         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
3163         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
3164
3165         msgcache_remove_msg(item->cache, msginfo->msgnum);
3166         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
3167 }
3168
3169 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
3170                          MsgFlags *flags, gboolean remove_source)
3171 {
3172         GSList file_list;
3173         MsgFileInfo fileinfo;
3174
3175         cm_return_val_if_fail(dest != NULL, -1);
3176         cm_return_val_if_fail(file != NULL, -1);
3177  
3178         fileinfo.msginfo = NULL;
3179         fileinfo.file = (gchar *)file;
3180         fileinfo.flags = flags;
3181         file_list.data = &fileinfo;
3182         file_list.next = NULL;
3183
3184         return folder_item_add_msgs(dest, &file_list, remove_source);
3185 }
3186
3187 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
3188                           gboolean remove_source)
3189 {
3190         Folder *folder;
3191         gint ret, num, lastnum = -1;
3192         GSList *file_cur;
3193         GHashTable *relation;
3194         MsgFileInfo *fileinfo = NULL;
3195         gboolean folderscan = FALSE;
3196
3197         cm_return_val_if_fail(dest != NULL, -1);
3198         cm_return_val_if_fail(file_list != NULL, -1);
3199         cm_return_val_if_fail(dest->folder != NULL, -1);
3200         if (dest->no_select)
3201                 return -1;
3202
3203         folder = dest->folder;
3204
3205         relation = g_hash_table_new(g_direct_hash, g_direct_equal);
3206
3207         if (folder->klass->add_msgs != NULL) {
3208                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
3209                 if (ret < 0) {
3210                         g_hash_table_destroy(relation);
3211                         return ret;
3212                 }
3213         } else {
3214                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3215                         fileinfo = (MsgFileInfo *) file_cur->data;
3216
3217                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
3218                         if (ret < 0) {
3219                                 g_hash_table_destroy(relation);
3220                                 return ret;
3221                         }
3222                         g_hash_table_insert(relation, fileinfo, GINT_TO_POINTER(ret));
3223                 }
3224         }
3225
3226         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
3227                 gpointer data, old_key;
3228
3229                 fileinfo = (MsgFileInfo *) file_cur->data;
3230                 if (g_hash_table_lookup_extended(relation, fileinfo, &old_key, &data))
3231                         num = GPOINTER_TO_INT(data);
3232                 else
3233                         num = -1;
3234
3235                 if (num >= 0) {
3236                         MsgInfo *newmsginfo;
3237
3238                         if (num == 0) {
3239                                 if (!folderscan) {
3240                                         folder_item_scan_full(dest, FALSE);
3241                                         folderscan = TRUE;
3242                                 }
3243                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
3244                                 debug_print("got num %d\n", num);
3245                         }
3246
3247                         if (num > lastnum)
3248                                 lastnum = num;
3249
3250                         if (num >= 0 && remove_source) {
3251                                 if (claws_unlink(fileinfo->file) < 0)
3252                                         FILE_OP_ERROR(fileinfo->file, "unlink");
3253                         }
3254
3255                         if (num == 0)
3256                                 continue;
3257
3258                         if (!folderscan && 
3259                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
3260                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
3261                                 procmsg_msginfo_free(&newmsginfo);
3262                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
3263                                 /* TODO: set default flags */
3264                                 procmsg_msginfo_free(&newmsginfo);
3265                         }
3266                 }
3267         }
3268
3269         g_hash_table_destroy(relation);
3270
3271         return lastnum;
3272 }
3273
3274 static FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest, gboolean copy) 
3275 {
3276         GSList *mlist;
3277         FolderItem *new_item;
3278         FolderItem *next_item;
3279         GNode *srcnode;
3280         gchar *old_id, *new_id;
3281         FolderUpdateData hookdata;
3282
3283         /* move messages */
3284         debug_print("%s %s to %s\n", copy?"Copying":"Moving", src->path, dest->path);
3285         new_item = folder_create_folder(dest, src->name);
3286         if (new_item == NULL) {
3287                 g_print("Can't create folder\n");
3288                 return NULL;
3289         }
3290         
3291         if (new_item->folder == NULL)
3292                 new_item->folder = dest->folder;
3293
3294         /* move messages */
3295         log_message(LOG_PROTOCOL, copy ?_("Copying %s to %s...\n"):_("Moving %s to %s...\n"), 
3296                         src->name, new_item->path);
3297
3298         /*copy prefs*/
3299         folder_item_prefs_copy_prefs(src, new_item);
3300         
3301         /* copy internal data */
3302         if (src->folder->klass == new_item->folder->klass &&
3303             src->folder->klass->copy_private_data != NULL)
3304                 src->folder->klass->copy_private_data(src->folder,
3305                                         src, new_item);
3306         new_item->collapsed = src->collapsed;
3307         new_item->thread_collapsed = src->thread_collapsed;
3308         new_item->threaded  = src->threaded;
3309         new_item->ret_rcpt  = src->ret_rcpt;
3310         new_item->hide_read_msgs = src->hide_read_msgs;
3311         new_item->hide_del_msgs = src->hide_del_msgs;
3312         new_item->hide_read_threads = src->hide_read_threads;
3313         new_item->sort_key  = src->sort_key;
3314         new_item->sort_type = src->sort_type;
3315
3316         mlist = folder_item_get_msg_list(src);
3317
3318         if (mlist != NULL) {
3319                 if (copy)
3320                         folder_item_copy_msgs(new_item, mlist);
3321                 else
3322                         folder_item_move_msgs(new_item, mlist);
3323                 procmsg_msg_list_free(mlist);
3324         }
3325
3326         prefs_matcher_write_config();
3327         
3328         /* recurse */
3329         srcnode = src->folder->node;    
3330         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
3331         srcnode = srcnode->children;
3332         while (srcnode != NULL) {
3333                 if (srcnode && srcnode->data) {
3334                         next_item = (FolderItem*) srcnode->data;
3335                         srcnode = srcnode->next;
3336                         if (folder_item_move_recursive(next_item, new_item, copy) == NULL) {
3337                                 return NULL;
3338                         }
3339                 }
3340         }
3341         old_id = folder_item_get_identifier(src);
3342         new_id = folder_item_get_identifier(new_item);
3343
3344         hookdata.folder = src->folder;
3345         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_MOVE_FOLDERITEM;
3346         hookdata.item = src;
3347         hookdata.item2 = new_item;
3348         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
3349
3350         /* if src supports removing, otherwise only copy folder */
3351         if (src->folder->klass->remove_folder != NULL && !copy) 
3352                 src->folder->klass->remove_folder(src->folder, src);
3353         folder_write_list();
3354
3355         if (!copy) {
3356                 debug_print("updating rules : %s => %s\n", old_id, new_id);
3357                 if (old_id != NULL && new_id != NULL) {
3358                         prefs_filtering_rename_path(old_id, new_id);
3359                         account_rename_path(old_id, new_id);
3360                 }
3361         }
3362         g_free(old_id);
3363         g_free(new_id);
3364         
3365         return new_item;
3366 }
3367
3368 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item, gboolean copy)
3369 {
3370         FolderItem *tmp = folder_item_parent(dest);
3371         gchar * src_identifier, * dst_identifier;
3372         gchar * phys_srcpath, * phys_dstpath, *tmppath, *tmpname;
3373
3374         while (tmp) {
3375                 if (tmp == src) {
3376                         return F_MOVE_FAILED_DEST_IS_CHILD;
3377                 }
3378                 tmp = folder_item_parent(tmp);
3379         }
3380
3381         /* both dst and src can be root folders */
3382         src_identifier = folder_item_get_identifier(src);
3383         if (src_identifier == NULL && src->folder && folder_item_parent(src) == NULL) {
3384                 src_identifier = folder_get_identifier(src->folder);
3385         }
3386
3387         dst_identifier = folder_item_get_identifier(dest);
3388         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
3389                 dst_identifier = folder_get_identifier(dest->folder);
3390         }
3391
3392         if (src_identifier == NULL || dst_identifier == NULL) {
3393                 debug_print("Can't get identifiers\n");
3394                 if (src_identifier)
3395                         g_free(src_identifier);
3396                 if (dst_identifier)
3397                         g_free(dst_identifier);
3398                 return F_MOVE_FAILED;
3399         }
3400
3401         if (src->folder != dest->folder && !copy) {
3402                 g_free(src_identifier);
3403                 g_free(dst_identifier);
3404                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
3405         }
3406         g_free(src_identifier);
3407         g_free(dst_identifier);
3408
3409         phys_srcpath = folder_item_get_path(src);
3410         tmppath = folder_item_get_path(dest);
3411         tmpname = g_path_get_basename(phys_srcpath);
3412         phys_dstpath = g_strconcat(tmppath,
3413                        G_DIR_SEPARATOR_S,
3414                        tmpname,
3415                        NULL);
3416         g_free(tmpname);
3417         g_free(tmppath);
3418
3419         if (folder_item_parent(src) == dest || src == dest) {
3420                 g_free(phys_srcpath);
3421                 g_free(phys_dstpath);
3422                 return F_MOVE_FAILED_DEST_IS_PARENT;
3423         }
3424         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
3425         if ((tmp = folder_item_move_recursive(src, dest, copy)) == NULL) {
3426                 g_free(phys_srcpath);
3427                 g_free(phys_dstpath);
3428                 return F_MOVE_FAILED;
3429         }
3430         
3431         g_free(phys_srcpath);
3432         g_free(phys_dstpath);
3433
3434         *new_item = tmp;
3435
3436         return F_MOVE_OK;
3437 }
3438
3439 struct find_data
3440 {
3441         gboolean found;
3442 };      
3443 static void find_num(gpointer key, gpointer value, gpointer data)
3444 {
3445         struct find_data *fdata = (struct find_data *)data;
3446         if (GPOINTER_TO_INT(value) == 0)
3447                 fdata->found = TRUE;
3448 }
3449
3450 static gboolean some_msgs_have_zero_num(GHashTable *hashtable)
3451 {
3452         struct find_data fdata;
3453         
3454         fdata.found = FALSE;
3455         g_hash_table_foreach(hashtable, find_num, &fdata);
3456         
3457         return fdata.found;
3458 }
3459
3460 /**
3461  * Copy a list of message to a new folder and remove
3462  * source messages if wanted
3463  */
3464 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
3465 {
3466         Folder *folder;
3467         GSList *l;
3468         gint num, lastnum = -1;
3469         gboolean folderscan = FALSE;
3470         GHashTable *relation;
3471         GSList *not_moved = NULL;
3472         gint total = 0, curmsg = 0;
3473         MsgInfo *msginfo = NULL;
3474
3475         cm_return_val_if_fail(dest != NULL, -1);
3476         cm_return_val_if_fail(msglist != NULL, -1);
3477
3478         folder = dest->folder;
3479
3480         cm_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
3481         if (dest->no_select)
3482                 return -1;
3483
3484         msginfo = (MsgInfo *)msglist->data;
3485         
3486         if (!msginfo)
3487                 return -1;
3488         
3489         if (!MSG_IS_QUEUED(msginfo->flags) && 
3490             MSG_IS_DRAFT(msginfo->flags) && 
3491             folder_has_parent_of_type(dest, F_QUEUE)) {
3492                 GSList *cur = msglist;
3493                 gboolean queue_err = FALSE;
3494                 for (; cur; cur = cur->next) {
3495                         Compose *compose = NULL;
3496                         FolderItem *queue = dest;
3497                         ComposeQueueResult val = COMPOSE_QUEUE_SUCCESS;
3498                         
3499                         msginfo = (MsgInfo *)cur->data;
3500                         compose = compose_reedit(msginfo, TRUE);
3501                         if (compose == NULL) {
3502                                 queue_err = TRUE;
3503                                 continue;
3504                         }
3505                         val = compose_queue(compose, NULL, &queue, NULL,
3506                                         FALSE);
3507                         if (val != COMPOSE_QUEUE_SUCCESS) {
3508                                 queue_err = TRUE;
3509                         } else if (remove_source) {
3510                                 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
3511                         }
3512                         if (val == COMPOSE_QUEUE_SUCCESS)
3513                                 compose_close(compose);
3514                 }
3515                 return queue_err ? -1:0;
3516         }
3517
3518         relation = g_hash_table_new(g_direct_hash, g_direct_equal);
3519
3520         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
3521                 MsgInfo * msginfo = (MsgInfo *) l->data;
3522
3523                 if (msginfo->planned_download != 0) {
3524                         int old_planned = msginfo->planned_download;
3525                         partial_unmark(msginfo);
3526                         /* little hack to reenable after */
3527                         msginfo->planned_download = old_planned;
3528                 }
3529         }
3530
3531         /* 
3532          * Copy messages to destination folder and 
3533          * store new message numbers in newmsgnums
3534          */
3535         if (folder->klass->copy_msgs != NULL) {
3536                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
3537                         g_hash_table_destroy(relation);
3538                         return -1;
3539                 }
3540         } else {
3541                 MsgInfo * msginfo;
3542                 l = msglist;
3543
3544                 /* immediately stop if src and dest folders are identical */
3545                 if (l != NULL) {
3546                         msginfo = (MsgInfo *) l->data;
3547                         if (msginfo != NULL && msginfo->folder == dest) {
3548                                 g_hash_table_destroy(relation);
3549                                 return -1;
3550                         }
3551                 }
3552
3553                 for (; l != NULL ; l = g_slist_next(l)) {
3554                         msginfo = (MsgInfo *) l->data;
3555
3556                         num = folder->klass->copy_msg(folder, dest, msginfo);
3557                         if (num > 0)
3558                                 g_hash_table_insert(relation, msginfo, GINT_TO_POINTER(num));
3559                         else
3560                                 not_moved = g_slist_prepend(not_moved, msginfo);
3561                 }
3562         }
3563
3564         if (remove_source) {
3565                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
3566                 FolderItem *item = msginfo->folder;
3567                 /*
3568                  * Remove source messages from their folders if
3569                  * copying was successfull and update folder
3570                  * message counts
3571                  */
3572                 if (not_moved == NULL && item->folder->klass->remove_msgs) {
3573                         item->folder->klass->remove_msgs(item->folder,
3574                                                                 msginfo->folder,
3575                                                                 msglist,
3576                                                                 relation);
3577                 }
3578                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
3579                         gpointer old_key, data;
3580                         msginfo = (MsgInfo *) l->data;
3581                         item = msginfo->folder;
3582
3583                         if (g_hash_table_lookup_extended(relation, msginfo, &old_key, &data))
3584                                 num = GPOINTER_TO_INT(data);
3585                         else
3586                                 num = 0;
3587
3588                         if (g_slist_find(not_moved, msginfo))
3589                                 continue;
3590
3591                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
3592                                 if (!item->folder->klass->remove_msgs)
3593                                         item->folder->klass->remove_msg(item->folder,
3594                                                                 msginfo->folder,
3595                                                                 msginfo->msgnum);
3596                                 remove_msginfo_from_cache(item, msginfo);
3597                         }
3598                 }
3599         }
3600
3601         /* Read cache for dest folder */
3602         if (!dest->cache) folder_item_read_cache(dest);
3603
3604         /* 
3605          * Fetch new MsgInfos for new messages in dest folder,
3606          * add them to the msgcache and update folder message counts
3607          */
3608         if (some_msgs_have_zero_num(relation)) {
3609                 folder_item_scan_full(dest, FALSE);
3610                 folderscan = TRUE;
3611         }
3612
3613         statusbar_print_all(_("Updating cache for %s..."), dest->path ? dest->path : "(null)");
3614         total = g_slist_length(msglist);
3615         
3616         if (FOLDER_TYPE(dest->folder) == F_IMAP && total > 1) {
3617                 folder_item_scan_full(dest, FALSE);
3618                 folderscan = TRUE;
3619         }
3620         folder_item_set_batch(dest, TRUE);
3621         for (l = msglist; l != NULL; l = g_slist_next(l)) {
3622                 MsgInfo *msginfo = (MsgInfo *) l->data;
3623                 gpointer data, old_key;
3624
3625                 if (!msginfo)
3626                         continue;
3627
3628                 if (g_hash_table_lookup_extended(relation, msginfo, &old_key, &data))
3629                         num = GPOINTER_TO_INT(data);
3630                 else
3631                         num = 0;
3632
3633                 statusbar_progress_all(curmsg++,total, 100);
3634                 if (curmsg % 100 == 0)
3635                         GTK_EVENTS_FLUSH();
3636
3637                 if (num >= 0) {
3638                         MsgInfo *newmsginfo = NULL;
3639
3640                         if (!folderscan && num > 0) {
3641                                 newmsginfo = get_msginfo(dest, num);
3642                                 if (newmsginfo != NULL) {
3643                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
3644                                 }
3645                         }
3646                         if (newmsginfo == NULL) {
3647                                 if (!folderscan) {
3648                                         folder_item_scan_full(dest, FALSE);
3649                                         folderscan = TRUE;
3650                                 }
3651                                 if (msginfo->msgid != NULL) {
3652                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
3653                                         if (newmsginfo != NULL) {
3654                                                 copy_msginfo_flags(msginfo, newmsginfo);
3655                                                 num = newmsginfo->msgnum;
3656                                         }
3657                                 }
3658                         }
3659                         if (newmsginfo != NULL 
3660                          && msginfo->planned_download == POP3_PARTIAL_DLOAD_DELE) {
3661                                 partial_mark_for_delete(newmsginfo);
3662                         }
3663                         if (newmsginfo != NULL 
3664                          && msginfo->planned_download == POP3_PARTIAL_DLOAD_DLOAD) {
3665                                 partial_mark_for_download(newmsginfo);
3666                         }
3667                         if (!MSG_IS_POSTFILTERED (msginfo->flags)) {
3668                                 procmsg_msginfo_set_flags (   msginfo, MSG_POSTFILTERED, 0);
3669                                 if (newmsginfo) {
3670                                         procmsg_msginfo_set_flags (newmsginfo, MSG_POSTFILTERED, 0);
3671                                         hooks_invoke (MAIL_POSTFILTERING_HOOKLIST, newmsginfo);
3672                                 }
3673                         }
3674                         procmsg_msginfo_free(&newmsginfo);
3675
3676
3677                         if (num > lastnum)
3678                                 lastnum = num;
3679                 }
3680         }
3681         folder_item_set_batch(dest, FALSE);
3682         statusbar_progress_all(0,0,0);
3683         statusbar_pop_all();
3684
3685         g_hash_table_destroy(relation);
3686         if (not_moved != NULL) {
3687                 g_slist_free(not_moved);
3688                 return -1;
3689         } else
3690                 return lastnum;
3691 }
3692
3693 /**
3694  * Move a message to a new folder.
3695  *
3696  * \param dest Destination folder
3697  * \param msginfo The message
3698  */
3699 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
3700 {
3701         GSList list;
3702
3703         cm_return_val_if_fail(dest != NULL, -1);
3704         cm_return_val_if_fail(msginfo != NULL, -1);
3705
3706         list.data = msginfo;
3707         list.next = NULL;
3708
3709         return do_copy_msgs(dest, &list, TRUE);
3710 }
3711
3712 /**
3713  * Move a list of messages to a new folder.
3714  *
3715  * \param dest Destination folder
3716  * \param msglist List of messages
3717  */
3718 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
3719 {
3720         gint result = -1;
3721         cm_return_val_if_fail(dest != NULL, -1);
3722         cm_return_val_if_fail(msglist != NULL, -1);
3723         inc_lock();
3724         result = do_copy_msgs(dest, msglist, TRUE);
3725         inc_unlock();
3726         return result;
3727 }
3728
3729 /**
3730  * Copy a message to a new folder.
3731  *
3732  * \param dest Destination folder
3733  * \param msginfo The message
3734  */
3735 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
3736 {
3737         GSList list;
3738
3739         cm_return_val_if_fail(dest != NULL, -1);
3740         cm_return_val_if_fail(msginfo != NULL, -1);
3741     
3742         list.data = msginfo;
3743         list.next = NULL;
3744
3745         return do_copy_msgs(dest, &list, FALSE);
3746 }
3747
3748 /**
3749  * Copy a list of messages to a new folder.
3750  *
3751  * \param dest Destination folder
3752  * \param msglist List of messages
3753  */
3754 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
3755 {
3756         gint result;
3757         cm_return_val_if_fail(dest != NULL, -1);
3758         cm_return_val_if_fail(msglist != NULL, -1);
3759
3760         inc_lock();
3761         result = do_copy_msgs(dest, msglist, FALSE);
3762         inc_unlock();
3763         
3764         return result;
3765 }
3766
3767 gint folder_item_remove_msg(FolderItem *item, gint num)
3768 {
3769         Folder *folder;
3770         gint ret;
3771         MsgInfo *msginfo;
3772
3773         cm_return_val_if_fail(item != NULL, -1);
3774         folder = item->folder;
3775         cm_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
3776         if (item->no_select)
3777                 return -1;
3778
3779         if (!item->cache) folder_item_read_cache(item);
3780
3781         msginfo = msgcache_get_msg(item->cache, num);
3782         if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3783                 procmsg_msginfo_free(&msginfo);
3784                 return -1;
3785         }
3786         ret = folder->klass->remove_msg(folder, item, num);
3787
3788         if (msginfo != NULL) {
3789                 if (ret == 0)
3790                         remove_msginfo_from_cache(item, msginfo);
3791                 procmsg_msginfo_free(&msginfo);
3792         }
3793
3794         return ret;
3795 }
3796
3797 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
3798 {
3799         Folder *folder;
3800         gint ret = 0;
3801         GSList *real_list = NULL, *cur = NULL;
3802
3803         cm_return_val_if_fail(item != NULL, -1);
3804         folder = item->folder;
3805         cm_return_val_if_fail(folder != NULL, -1);
3806         if (item->no_select)
3807                 return -1;
3808         inc_lock();
3809         if (!item->cache) folder_item_read_cache(item);
3810
3811         folder_item_update_freeze();
3812         
3813         /* filter out locked mails */
3814         for (cur = msglist; cur; cur = cur->next) {
3815                 MsgInfo *info = (MsgInfo *)cur->data;
3816                 if (!MSG_IS_LOCKED(info->flags))
3817                         real_list = g_slist_prepend(real_list, info);
3818         }
3819
3820         real_list = g_slist_reverse(real_list);
3821
3822         if (item->folder->klass->remove_msgs) {
3823                 ret = item->folder->klass->remove_msgs(item->folder,
3824                                                         item,
3825                                                         real_list,
3826                                                         NULL);
3827         }
3828         cur = real_list;
3829         while (ret == 0 && cur != NULL) {
3830                 MsgInfo *msginfo = (MsgInfo *)cur->data;
3831                 if (msginfo && MSG_IS_LOCKED(msginfo->flags)) {
3832                         cur = cur->next;
3833                         continue;
3834                 }
3835                 if (!item->folder->klass->remove_msgs)
3836                         ret = folder_item_remove_msg(item, msginfo->msgnum);
3837                 if (ret != 0) break;
3838                 msgcache_remove_msg(item->cache, msginfo->msgnum);
3839                 cur = cur->next;
3840         }
3841         g_slist_free(real_list);
3842         folder_item_scan_full(item, FALSE);
3843         folder_item_update_thaw();
3844         inc_unlock();
3845         return ret;
3846 }
3847
3848 gint folder_item_expunge(FolderItem *item)
3849 {
3850         Folder *folder = item->folder;
3851         gint result = 0;
3852         if (folder == NULL)
3853                 return -1;
3854         if (folder->klass->expunge) {
3855                 GSList *msglist = folder_item_get_msg_list(item);
3856                 GSList *cur;
3857                 result = folder->klass->expunge(folder, item);
3858                 if (result == 0) {
3859                         for (cur = msglist; cur; cur = cur->next) {
3860                                 MsgInfo *msginfo = (MsgInfo *)cur->data;
3861                                 if (MSG_IS_DELETED(msginfo->flags)) {
3862                                         remove_msginfo_from_cache(item, msginfo);
3863                                 }
3864                         }
3865                 }
3866                 procmsg_msg_list_free(msglist);
3867         }
3868         return result;
3869 }
3870
3871 gint folder_item_remove_all_msg(FolderItem *item)
3872 {
3873         Folder *folder;
3874         gint result;
3875
3876         cm_return_val_if_fail(item != NULL, -1);
3877         if (item->no_select)
3878                 return -1;
3879
3880         folder = item->folder;
3881
3882         inc_lock();
3883         if (folder->klass->remove_all_msg != NULL) {
3884                 result = folder->klass->remove_all_msg(folder, item);
3885
3886                 if (result == 0) {
3887                         folder_item_free_cache(item, TRUE);
3888                         item->cache = msgcache_new();
3889                         item->cache_dirty = TRUE;
3890                         item->mark_dirty = TRUE;
3891                         item->tags_dirty = TRUE;
3892                 }
3893         } else {
3894                 MsgInfoList *msglist;
3895
3896                 msglist = folder_item_get_msg_list(item);
3897                 result = folder_item_remove_msgs(item, msglist);
3898                 procmsg_msg_list_free(msglist);
3899         }
3900
3901         if (result == 0) {
3902                 item->new_msgs = 0;
3903                 item->unread_msgs = 0;
3904                 item->unreadmarked_msgs = 0;
3905                 item->marked_msgs = 0;
3906                 item->total_msgs = 0;
3907                 item->replied_msgs = 0;
3908                 item->forwarded_msgs = 0;
3909                 item->locked_msgs = 0;
3910                 item->ignored_msgs = 0;
3911                 item->watched_msgs = 0;
3912                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3913         }
3914
3915         inc_unlock();
3916         return result;
3917 }
3918
3919 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3920 {
3921         cm_return_if_fail(item != NULL);
3922         cm_return_if_fail(msginfo != NULL);
3923         
3924         item->mark_dirty = TRUE;
3925
3926         if (item->no_select)
3927                 return;
3928         
3929         if (item->folder->klass->change_flags != NULL && item->scanning != ITEM_SCANNING_WITH_FLAGS) {
3930                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3931         } else {
3932                 msginfo->flags.perm_flags = newflags;
3933         }
3934 }
3935
3936 void folder_item_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_set, GSList *tags_unset)
3937 {
3938         Folder *folder = NULL;
3939
3940         if (!msginfo)
3941                 return;
3942         if (!item)
3943                 return;
3944         if (!tags_set && !tags_unset)
3945                 return;
3946
3947         folder = item->folder;
3948         if (!folder)
3949                 return;
3950         
3951         item->tags_dirty = TRUE;
3952
3953         if (folder->klass->commit_tags == NULL)
3954                 return;
3955         
3956         folder->klass->commit_tags(item, msginfo, tags_set, tags_unset);
3957 }
3958
3959 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3960 {
3961         Folder *folder;
3962
3963         cm_return_val_if_fail(item != NULL, FALSE);
3964         if (item->no_select)
3965                 return FALSE;
3966
3967         folder = item->folder;
3968
3969         cm_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3970
3971         return folder->klass->is_msg_changed(folder, item, msginfo);
3972 }
3973
3974 void folder_item_discard_cache(FolderItem *item)
3975 {
3976         gchar *dir;
3977         gchar *cache;
3978
3979         if (!item)
3980                 return;
3981
3982         if (item->cache) {
3983                 msgcache_destroy(item->cache);
3984                 item->cache = NULL;
3985         }
3986         dir = folder_item_get_path(item);
3987         if (is_dir_exist(dir))
3988                 remove_all_numbered_files(dir);
3989         g_free(dir);
3990         
3991         cache = folder_item_get_cache_file(item);
3992         if (is_file_exist(cache))
3993                 claws_unlink(cache);
3994         g_free(cache);
3995         
3996 }
3997
3998 static gchar *folder_item_get_cache_file(FolderItem *item)
3999 {
4000         gchar *path;
4001         gchar *file;
4002         gchar *old_file;
4003
4004         cm_return_val_if_fail(item != NULL, NULL);
4005
4006         path = folder_item_get_path(item);
4007         cm_return_val_if_fail(path != NULL, NULL);
4008         if (!is_dir_exist(path))
4009                 make_dir_hier(path);
4010         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
4011         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_CACHE_FILE, NULL);
4012
4013         if (!is_file_exist(file) && is_file_exist(old_file))
4014                 move_file(old_file, file, FALSE);
4015         g_free(old_file);
4016         g_free(path);
4017
4018         return file;
4019 }
4020
4021 static gchar *folder_item_get_mark_file(FolderItem *item)
4022 {
4023         gchar *path;
4024         gchar *file;
4025         gchar *old_file;
4026
4027         cm_return_val_if_fail(item != NULL, NULL);
4028         cm_return_val_if_fail(item->path != NULL, NULL);
4029
4030         path = folder_item_get_path(item);
4031         cm_return_val_if_fail(path != NULL, NULL);
4032         if (!is_dir_exist(path))
4033                 make_dir_hier(path);
4034         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
4035         old_file = g_strconcat(path, G_DIR_SEPARATOR_S, OLD_MARK_FILE, NULL);
4036
4037         if (!is_file_exist(file) && is_file_exist(old_file))
4038                 move_file(old_file, file, FALSE);
4039         g_free(old_file);
4040         g_free(path);
4041
4042         return file;
4043 }
4044
4045 static gchar *folder_item_get_tags_file(FolderItem *item)
4046 {
4047         gchar *path;
4048         gchar *identifier;
4049         gchar *file;
4050
4051         /* we save tags files in rc_dir, because tagsrc is there too,
4052          * and storing tags directly in the mailboxes would give strange
4053          * result when using another Claws mailbox from another install
4054          * with different tags. */
4055
4056         cm_return_val_if_fail(item != NULL, NULL);
4057
4058         identifier = folder_item_get_identifier(item);
4059         cm_return_val_if_fail(identifier != NULL, NULL);
4060
4061 #ifdef G_OS_WIN32
4062         while (strchr(identifier, '/'))
4063                 *strchr(identifier, '/') = '\\';
4064 #endif
4065
4066         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4067                            TAGS_DIR, G_DIR_SEPARATOR_S,
4068                            identifier, NULL);
4069         
4070         g_free(identifier);
4071                            
4072         if (!is_dir_exist(path))
4073                 make_dir_hier(path);
4074
4075         file = g_strconcat(path, G_DIR_SEPARATOR_S, TAGS_FILE, NULL);
4076         
4077         g_free(path);
4078
4079         return file;
4080 }
4081
4082 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
4083 {
4084         XMLNode *xmlnode = (XMLNode *) nodedata;
4085         Folder *folder = (Folder *) data;
4086         FolderItem *item;
4087
4088         cm_return_val_if_fail(xmlnode != NULL, NULL);
4089         cm_return_val_if_fail(folder != NULL, NULL);
4090
4091         if (g_strcmp0(xmlnode->tag->tag, "folderitem") != 0) {
4092                 g_warning("tag name != \"folderitem\"");
4093                 return NULL;
4094         }
4095
4096         item = folder_item_new(folder, "", "");
4097         g_node_destroy(item->node);
4098         if (folder->klass->item_set_xml != NULL)
4099                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
4100         else
4101                 folder_item_set_xml(folder, item, xmlnode->tag);
4102
4103         item->folder = folder;
4104
4105         switch (item->stype) {
4106         case F_INBOX:  folder->inbox  = item; break;
4107         case F_OUTBOX: folder->outbox = item; break;
4108         case F_DRAFT:  folder->draft  = item; break;
4109         case F_QUEUE:  folder->queue  = item; break;
4110         case F_TRASH:  folder->trash  = item; break;
4111         default:       break;
4112         }
4113         folder_item_prefs_read_config(item);
4114
4115         return item;
4116 }
4117
4118 static gboolean folder_item_set_node(GNode *node, gpointer data)
4119 {
4120         cm_return_val_if_fail(node->data != NULL, -1);
4121
4122         FolderItem *item = (FolderItem *) node->data;
4123         item->node = node;
4124
4125         return FALSE;
4126 }
4127
4128 static Folder *folder_get_from_xml(GNode *node)
4129 {
4130         Folder *folder;
4131         XMLNode *xmlnode;
4132         GList *list;
4133         FolderClass *klass = NULL;
4134         GNode *cur;
4135
4136         cm_return_val_if_fail(node->data != NULL, NULL);
4137
4138         xmlnode = node->data;
4139         if (g_strcmp0(xmlnode->tag->tag, "folder") != 0) {
4140                 g_warning("tag name != \"folder\"");
4141                 return NULL;
4142         }
4143         list = xmlnode->tag->attr;
4144         for (; list != NULL; list = list->next) {
4145                 XMLAttr *attr = list->data;
4146
4147                 if (!attr || !attr->name || !attr->value) continue;
4148                 if (!strcmp(attr->name, "type"))
4149                         klass = folder_get_class_from_string(attr->value);
4150         }
4151         if (klass == NULL)
4152                 return NULL;
4153
4154         folder = folder_new(klass, "", "");
4155         cm_return_val_if_fail(folder != NULL, NULL);
4156
4157         if (klass->set_xml)
4158                 klass->set_xml(folder, xmlnode->tag);
4159         else
4160                 folder_set_xml(folder, xmlnode->tag);
4161
4162         cur = node->children;
4163         while (cur != NULL) {
4164                 GNode *itemnode;
4165
4166                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
4167                 g_node_append(folder->node, itemnode);
4168                 cur = cur->next;
4169         }
4170         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
4171         
4172         return folder;
4173 }
4174
4175 gchar *folder_get_list_path(void)
4176 {
4177         static gchar *filename = NULL;
4178
4179         if (!filename)
4180                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4181                                         FOLDER_LIST, NULL);
4182
4183         return filename;
4184 }
4185
4186 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
4187 {
4188         FolderItem *item = (FolderItem *) nodedata;
4189         XMLTag *tag;
4190
4191         cm_return_val_if_fail(item != NULL, NULL);
4192
4193         if (item->folder->klass->item_get_xml != NULL)
4194                 tag = item->folder->klass->item_get_xml(item->folder, item);
4195         else
4196                 tag = folder_item_get_xml(item->folder, item);
4197
4198         return xml_node_new(tag, NULL);
4199 }
4200
4201 static GNode *folder_get_xml_node(Folder *folder)
4202 {
4203         GNode *node;
4204         XMLNode *xmlnode;
4205         XMLTag *tag;
4206
4207         cm_return_val_if_fail(folder != NULL, NULL);
4208
4209         if (folder->klass->get_xml != NULL)
4210                 tag = folder->klass->get_xml(folder);
4211         else
4212                 tag = folder_get_xml(folder);
4213
4214         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
4215
4216         xmlnode = xml_node_new(tag, NULL);
4217
4218         node = g_node_new(xmlnode);
4219         
4220         cm_return_val_if_fail (folder->node != NULL, NULL);
4221         
4222         if (folder->node->children) {
4223                 GNode *cur;
4224
4225                 cur = folder->node->children;
4226                 while (cur) {
4227                         GNode *xmlnode;
4228
4229                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
4230                         g_node_append(node, xmlnode);
4231                         cur = cur->next;
4232                 }
4233         }
4234
4235         return node;
4236 }
4237
4238 static void folder_update_op_count_rec(GNode *node)
4239 {
4240         FolderItem *fitem = FOLDER_ITEM(node->data);
4241
4242         if (g_node_depth(node) > 0) {
4243                 if (fitem->op_count > 0) {
4244                         fitem->op_count = 0;
4245                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
4246                 }
4247                 if (node->children) {
4248                         GNode *child;
4249
4250                         child = node->children;
4251                         while (child) {
4252                                 GNode *cur;
4253
4254                                 cur = child;
4255                                 child = cur->next;
4256                                 folder_update_op_count_rec(cur);
4257                         }
4258                 }
4259         }
4260 }
4261
4262 void folder_update_op_count(void) 
4263 {
4264         GList *cur;
4265         Folder *folder;
4266
4267         for (cur = folder_list; cur != NULL; cur = cur->next) {
4268                 folder = cur->data;
4269                 folder_update_op_count_rec(folder->node);
4270         }
4271 }
4272
4273 typedef struct _type_str {
4274         gchar * str;
4275         gint type;
4276 } type_str;
4277
4278
4279 /*
4280 static gchar * folder_item_get_tree_identifier(FolderItem * item)
4281 {
4282         if (item->parent != NULL) {
4283                 gchar * path;
4284                 gchar * id;
4285
4286                 path = folder_item_get_tree_identifier(item->parent);
4287                 if (path == NULL)
4288                         return NULL;
4289
4290                 id = g_strconcat(path, "/", item->name, NULL);
4291                 g_free(path);
4292
4293                 return id;
4294         }
4295         else {
4296                 return g_strconcat("/", item->name, NULL);
4297         }
4298 }
4299 */
4300
4301 /* CLAWS: temporary local folder for filtering */
4302 #define TEMP_FOLDER "TEMP_FOLDER"
4303 #define PROCESSING_FOLDER_ITEM "processing"     
4304
4305 static FolderItem *folder_create_processing_folder(int account_id)
4306 {
4307         static Folder *processing_folder = NULL;
4308         FolderItem *processing_folder_item;
4309
4310         gchar *processing_folder_item_name = NULL;
4311
4312         processing_folder_item_name = g_strdup_printf("%s-%d", PROCESSING_FOLDER_ITEM, account_id);
4313
4314         if (processing_folder == NULL) {
4315                 gchar *tmppath =
4316                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
4317                                 "tempfolder", NULL);
4318                 processing_folder =
4319                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
4320                 g_free(tmppath);
4321                 tmppath = NULL;
4322                 
4323                 g_assert(processing_folder != NULL);
4324                 processing_folder->klass->scan_tree(processing_folder);
4325         }
4326         g_assert(processing_folder != NULL);
4327
4328         processing_folder_item = folder_find_child_item_by_name(FOLDER_ITEM(processing_folder->node->data),
4329                                         processing_folder_item_name);
4330         if (processing_folder_item) {
4331                 debug_print("*TMP* already created %s\n", folder_item_get_path(processing_folder_item));
4332         } else {
4333                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
4334                                                                                  processing_folder->node->data,
4335                                                                                  processing_folder_item_name);
4336                 folder_item_append(FOLDER_ITEM(processing_folder->node->data), processing_folder_item);
4337                 debug_print("*TMP* creating %s\n", folder_item_get_path(processing_folder_item));
4338         } 
4339         g_free(processing_folder_item_name);
4340         g_assert(processing_folder_item != NULL);
4341
4342         return(processing_folder_item);
4343 }
4344
4345 FolderItem *folder_get_default_processing(int account_id)
4346 {
4347         return folder_create_processing_folder(account_id);
4348 }
4349
4350 /* folder_persist_prefs_new() - return hash table with persistent
4351  * settings (and folder name as key). 
4352  * (note that in claws other options are in the folder_item_prefs_RC
4353  * file, so those don't need to be included in PersistPref yet) 
4354  */
4355 static GHashTable *folder_persist_prefs_new(Folder *folder)
4356 {
4357         GHashTable *pptable;
4358
4359         cm_return_val_if_fail(folder, NULL);
4360         pptable = g_hash_table_new(g_str_hash, g_str_equal);
4361         folder_get_persist_prefs_recursive(folder->node, pptable);
4362         return pptable;
4363 }
4364
4365 static void folder_persist_prefs_free(GHashTable *pptable)
4366 {
4367         cm_return_if_fail(pptable);
4368         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
4369         g_hash_table_destroy(pptable);
4370 }
4371
4372 static const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
4373 {
4374         if (pptable == NULL || name == NULL) return NULL;
4375         return g_hash_table_lookup(pptable, name);
4376 }
4377
4378 static void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
4379 {
4380         const PersistPrefs *pp;
4381         gchar *id = folder_item_get_identifier(item);
4382
4383         pp = folder_get_persist_prefs(pptable, id); 
4384         g_free(id);
4385
4386         if (!pp) return;
4387
4388         /* CLAWS: since not all folder properties have been migrated to 
4389          * folderlist.xml, we need to call the old stuff first before
4390          * setting things that apply both to Main and Claws. */
4391         folder_item_prefs_read_config(item); 
4392
4393         item->collapsed = pp->collapsed;
4394         item->thread_collapsed = pp->thread_collapsed;
4395         item->threaded  = pp->threaded;
4396         item->ret_rcpt  = pp->ret_rcpt;
4397         item->hide_read_msgs = pp->hide_read_msgs;
4398         item->hide_del_msgs = pp->hide_del_msgs;
4399         item->hide_read_threads = pp->hide_read_threads;
4400         item->sort_key  = pp->sort_key;
4401         item->sort_type = pp->sort_type;
4402 }
4403
4404 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
4405 {
4406         FolderItem *item = FOLDER_ITEM(node->data);
4407         PersistPrefs *pp;
4408         GNode *child, *cur;
4409         gchar *id;
4410
4411         cm_return_if_fail(node != NULL);
4412         cm_return_if_fail(item != NULL);
4413
4414         /* NOTE: item->path == NULL means top level folder; not interesting
4415          * to store preferences of that one.  */
4416         if (item->path) {
4417                 id = folder_item_get_identifier(item);
4418                 pp = g_new0(PersistPrefs, 1);
4419                 if (!pp) {
4420                         g_free(id);
4421                         return;
4422                 }
4423                 pp->collapsed = item->collapsed;
4424                 pp->thread_collapsed = item->thread_collapsed;
4425                 pp->threaded  = item->threaded;
4426                 pp->ret_rcpt  = item->ret_rcpt; 
4427                 pp->hide_read_msgs = item->hide_read_msgs;
4428                 pp->hide_del_msgs = item->hide_del_msgs;
4429                 pp->hide_read_threads = item->hide_read_threads;
4430                 pp->sort_key  = item->sort_key;
4431                 pp->sort_type = item->sort_type;
4432                 g_hash_table_insert(pptable, id, pp);
4433         }
4434
4435         if (node->children) {
4436                 child = node->children;
4437                 while (child) {
4438                         cur = child;
4439                         child = cur->next;
4440                         folder_get_persist_prefs_recursive(cur, pptable);
4441                 }
4442         }       
4443 }
4444
4445 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
4446 {
4447         g_free(key);
4448         g_free(val);
4449         return TRUE;    
4450 }
4451
4452 void folder_item_apply_processing(FolderItem *item)
4453 {
4454         GSList *processing_list;
4455         GSList *mlist, *cur;
4456         guint total = 0, curmsg = 0;
4457         gint last_apply_per_account;
4458
4459         cm_return_if_fail(item != NULL);
4460
4461         if (item->no_select)
4462                return;
4463
4464         processing_list = item->prefs->processing;
4465
4466         if (!processing_enabled(pre_global_processing) &&
4467             !processing_enabled(processing_list) &&
4468             !processing_enabled(post_global_processing))
4469                 return;
4470
4471         debug_print("processing %s\n", item->name);
4472         folder_item_update_freeze();
4473
4474         inc_lock();
4475
4476         mlist = folder_item_get_msg_list(item);
4477         total = g_slist_length(mlist);
4478         statusbar_print_all(_("Processing messages..."));
4479
4480         last_apply_per_account = prefs_common.apply_per_account_filtering_rules;
4481         prefs_common.apply_per_account_filtering_rules = FILTERING_ACCOUNT_RULES_SKIP;
4482
4483         folder_item_set_batch(item, TRUE);
4484         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4485                 MsgInfo * msginfo;
4486
4487                 msginfo = (MsgInfo *) cur->data;
4488                 
4489                 /* reset parameters that can be modified by processing */
4490                 msginfo->hidden = 0;
4491                 msginfo->score = 0;
4492
4493                 statusbar_progress_all(curmsg++,total, 10);
4494
4495                 /* apply pre global rules */
4496                 filter_message_by_msginfo(pre_global_processing, msginfo, NULL,
4497                                 FILTERING_PRE_PROCESSING, NULL);
4498                 
4499                 /* apply rules of the folder */
4500                 filter_message_by_msginfo(processing_list, msginfo, NULL,
4501                                 FILTERING_FOLDER_PROCESSING, item->name);
4502
4503                 /* apply post global rules */
4504                 filter_message_by_msginfo(post_global_processing, msginfo, NULL,
4505                                 FILTERING_POST_PROCESSING, NULL);
4506                 if (curmsg % 1000 == 0)
4507                         GTK_EVENTS_FLUSH();
4508         }
4509         folder_item_set_batch(item, FALSE);
4510
4511         prefs_common.apply_per_account_filtering_rules = last_apply_per_account;
4512
4513         if (pre_global_processing || processing_list
4514             || post_global_processing)
4515                 filtering_move_and_copy_msgs(mlist);
4516         for (cur = mlist ; cur != NULL ; cur = cur->next) {
4517                 procmsg_msginfo_free((MsgInfo **)&(cur->data));
4518         }
4519         g_slist_free(mlist);
4520         
4521         statusbar_progress_all(0,0,0);
4522         statusbar_pop_all();
4523
4524         inc_unlock();
4525
4526         folder_item_update_thaw();
4527 }
4528
4529 /*
4530  *  functions for handling FolderItem content changes
4531  */
4532 static gint folder_item_update_freeze_cnt = 0;
4533
4534 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
4535 {
4536         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
4537                 FolderItemUpdateData source;
4538         
4539                 source.item = item;
4540                 source.update_flags = update_flags;
4541                 source.msg = msg;
4542                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
4543         } else {
4544                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
4545         }
4546 }
4547
4548 /**
4549  * Notify the folder system about changes to a folder. If the
4550  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
4551  * be invoked, otherwise the changes will be remebered until
4552  * the folder system is thawed.
4553  *
4554  * \param item The FolderItem that was changed
4555  * \param update_flags Type of changed that was made
4556  */
4557 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
4558 {
4559         folder_item_update_with_msg(item, update_flags, NULL);
4560 }
4561
4562 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
4563 {
4564         GNode *node = item->folder->node;       
4565
4566         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
4567         node = node->children;
4568
4569         folder_item_update(item, update_flags);
4570         while (node != NULL) {
4571                 if (node && node->data) {
4572                         FolderItem *next_item = (FolderItem*) node->data;
4573
4574                         folder_item_update(next_item, update_flags);
4575                 }
4576                 node = node->next;
4577         }
4578 }
4579
4580 void folder_item_update_freeze(void)
4581 {
4582         folder_item_update_freeze_cnt++;
4583 }
4584
4585 static void folder_item_update_func(FolderItem *item, gpointer data)
4586 {
4587         FolderItemUpdateData source;
4588     
4589         if (item->update_flags) {
4590                 source.item = item;
4591                 source.update_flags = item->update_flags;
4592                 source.msg = NULL;
4593                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);                             
4594                 item->update_flags = 0;
4595         }
4596 }
4597
4598 void folder_item_update_thaw(void)
4599 {
4600         if (folder_item_update_freeze_cnt > 0)
4601                 folder_item_update_freeze_cnt--;
4602         if (folder_item_update_freeze_cnt == 0) {
4603                 /* Update all folders */
4604                 folder_func_to_all_folders(folder_item_update_func, NULL);
4605         }
4606 }
4607
4608 void folder_item_synchronise(FolderItem *item)
4609 {
4610         if (!item)
4611                 return;
4612         if (item->prefs->offlinesync && item->folder->klass->synchronise) {
4613                 statusbar_print_all(_("Synchronising %s for offline use...\n"), item->path ? item->path : "(null)");
4614                 item->folder->klass->synchronise(item, 
4615                         item->prefs->offlinesync_days);
4616                 if (item->prefs->offlinesync_days > 0 &&
4617                     item->prefs->remove_old_bodies)
4618                         folder_item_clean_local_files(item, item->prefs->offlinesync_days);
4619                 statusbar_pop_all();
4620         }
4621 }
4622
4623 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
4624 {
4625         Folder *folder = (Folder *)data;
4626         if (folder == NULL || item->folder == folder) {
4627                 folder_item_synchronise(item);
4628         }
4629 }
4630
4631 void folder_synchronise(Folder *folder)
4632 {
4633         folder_func_to_all_folders(folder_item_synchronise_func, folder);
4634 }
4635
4636 typedef struct _WantSyncData {
4637         Folder *folder;
4638         gboolean want_sync;
4639 } WantSyncData;
4640
4641 static void folder_item_want_synchronise_func(FolderItem *item, gpointer data)
4642 {
4643         WantSyncData *want_sync_data = (WantSyncData *)data;
4644         
4645         if (want_sync_data->folder == NULL || item->folder == want_sync_data->folder) {
4646                 if (item->prefs->offlinesync && item->folder->klass->synchronise)
4647                         want_sync_data->want_sync |= TRUE;
4648         }
4649 }
4650
4651 gboolean folder_want_synchronise(Folder *folder)
4652 {
4653         WantSyncData *want_sync_data = g_new0(WantSyncData, 1);
4654         gboolean result;
4655         want_sync_data->folder = folder;
4656         want_sync_data->want_sync = FALSE;
4657         
4658         folder_func_to_all_folders(folder_item_want_synchronise_func, want_sync_data);
4659         result = want_sync_data->want_sync;
4660         g_free(want_sync_data);
4661         if (result > 0)
4662                 debug_print("Folder %s wants sync\n", folder->name);
4663         return result;
4664 }
4665
4666 void folder_item_set_batch (FolderItem *item, gboolean batch)
4667 {
4668         if (!item || !item->folder)
4669                 return;
4670         if (item->folder->klass->set_batch) {
4671                 item->folder->klass->set_batch(item->folder, item, batch);
4672         }
4673 }
4674
4675 gboolean folder_has_parent_of_type(FolderItem *item, 
4676                                           SpecialFolderItemType type) 
4677 {
4678         FolderItem *cur = item;
4679
4680         if (!item)
4681                 return FALSE;
4682         /* if we already know it, make it short */
4683         if (item->parent_stype != -1) {
4684                 return (item->parent_stype == type);
4685         }
4686         
4687         /* if we don't, find the type from the first possible parent,
4688          * and set our parent type to be faster next time */
4689         while (cur) {
4690                 if (cur->stype == type || cur->parent_stype == type) {
4691                         item->parent_stype = type;
4692                         return TRUE;
4693                 }
4694                 cur = folder_item_parent(cur);
4695         }
4696         
4697         /* if we didn't match what was asked, we didn't return. If our
4698          * parent type is unknown, we may as well find it now to be faster
4699          * later. */
4700         if (item->parent_stype == -1) {
4701                 cur = item;
4702                 while (cur) {
4703                         /* here's an exception: Inbox subfolders are normal. */
4704                         if (item->parent_stype == -1 && cur->stype == F_INBOX 
4705                         && item != cur) {
4706                                 item->parent_stype = F_NORMAL;
4707                                 break;
4708                         }
4709                         /* ah, we know this parent's parent's type, we may as 
4710                          * well copy it instead of going up the full way */
4711                         if (cur->parent_stype != -1) {
4712                                 item->parent_stype = cur->parent_stype;
4713                                 break;
4714                         }
4715                         /* we found a parent that has a special type. That's 
4716                          * our parent type. */
4717                         if (cur->stype != F_NORMAL) {
4718                                 cur->parent_stype = cur->stype;
4719                                 item->parent_stype = cur->stype;
4720                                 break;
4721                         }
4722                         /* if we didn't find anything, go up once more */
4723                         cur = folder_item_parent(cur);
4724                 }
4725                 /* as we still didn't find anything, our parents must all be 
4726                  * normal. */
4727                 if (item->parent_stype == -1) {
4728                         item->parent_stype = F_NORMAL;
4729                 }
4730         }
4731         return FALSE;
4732 }
4733
4734 gboolean folder_is_child_of(FolderItem *item, FolderItem *parent)
4735 {
4736         if (item == NULL || parent == NULL)
4737                 return FALSE;
4738
4739         while (item != NULL) {
4740                 if (parent == item)
4741                         return TRUE;
4742
4743                 item = folder_item_parent(item);
4744         }
4745
4746         return FALSE;
4747 }
4748
4749
4750 gboolean folder_subscribe (const gchar *uri)
4751 {
4752         GList *cur;
4753         for (cur = folder_get_list(); cur != NULL; cur = g_list_next(cur)) {
4754                 Folder *folder = (Folder *) cur->data;
4755
4756                 if (folder->klass->subscribe
4757                 &&  folder->klass->subscribe(folder, uri)) {
4758                         return TRUE;
4759                 }
4760         }
4761         return FALSE;
4762
4763 }
4764
4765 gboolean folder_get_sort_type           (Folder         *folder,
4766                                          FolderSortKey  *sort_key,
4767                                          FolderSortType *sort_type)
4768 {
4769         if (!folder || !sort_key || !sort_type)
4770                 return FALSE;
4771         if (folder->klass->get_sort_type == NULL)
4772                 return FALSE;
4773         folder->klass->get_sort_type(folder, sort_key, sort_type); 
4774         return TRUE;
4775 }
4776
4777 gint folder_item_search_msgs    (Folder                 *folder,
4778                                  FolderItem             *container,
4779                                  MsgNumberList          **msgs,
4780                                  gboolean               *on_server,
4781                                  MatcherList            *predicate,
4782                                  SearchProgressNotify   progress_cb,
4783                                  gpointer               progress_data)
4784 {
4785         gint result = -1;
4786         
4787         folder_item_update_freeze();
4788
4789         if (folder->klass->search_msgs)
4790                 result = folder->klass->search_msgs(folder, container,
4791                                 msgs, on_server, predicate, progress_cb, progress_data);
4792         if (result < 0)
4793                 result = folder_item_search_msgs_local(folder, container,
4794                                 msgs, on_server, predicate, progress_cb, progress_data);
4795         
4796         folder_item_update_thaw();
4797
4798         return result;
4799 }
4800
4801 MsgNumberList *folder_item_get_number_list(FolderItem *item)
4802 {
4803         GSList *nums = NULL;
4804         GSList *msglist = folder_item_get_msg_list(item);
4805
4806         nums = procmsg_get_number_list_for_msgs(msglist);
4807         procmsg_msg_list_free(msglist);
4808         
4809         return nums;
4810 }
4811
4812 gint folder_item_search_msgs_local      (Folder                 *folder,
4813                                          FolderItem             *container,
4814                                          MsgNumberList          **msgs,
4815                                          gboolean               *on_server,
4816                                          MatcherList            *predicate,
4817                                          SearchProgressNotify   progress_cb,
4818                                          gpointer               progress_data)
4819 {
4820         GSList *result = NULL;
4821         GSList *cur = NULL;
4822         gint matched_count = 0;
4823