2005-10-26 [wwp] 1.9.15cvs110
[claws.git] / src / folder.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2005 Hiroyuki Yamamoto
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18  */
19
20 #ifdef HAVE_CONFIG_H
21 #  include "config.h"
22 #endif
23
24 #include "defs.h"
25
26 #include <glib.h>
27 #include <glib/gi18n.h>
28 #include <stdio.h>
29 #include <string.h>
30 #include <sys/types.h>
31 #include <sys/stat.h>
32 #include <unistd.h>
33 #include <stdlib.h>
34
35 #include "folder.h"
36 #include "session.h"
37 #include "inc.h"
38 #include "imap.h"
39 #include "news.h"
40 #include "mh.h"
41 #include "utils.h"
42 #include "xml.h"
43 #include "codeconv.h"
44 #include "prefs_gtk.h"
45 #include "account.h"
46 #include "filtering.h"
47 #include "procheader.h"
48 #include "hooks.h"
49 #include "log.h"
50 #include "folder_item_prefs.h"
51 #include "remotefolder.h"
52 #include "partial_download.h"
53 #include "statusbar.h"
54
55 /* Dependecies to be removed ?! */
56 #include "prefs_common.h"
57 #include "prefs_account.h"
58
59 static GList *folder_list = NULL;
60 static GSList *class_list = NULL;
61 static GSList *folder_unloaded_list = NULL;
62
63 void folder_init                (Folder         *folder,
64                                  const gchar    *name);
65
66 static gchar *folder_get_list_path      (void);
67 static GNode *folder_get_xml_node       (Folder         *folder);
68 static Folder *folder_get_from_xml      (GNode          *node);
69 static void folder_update_op_count_rec  (GNode          *node);
70
71
72 static void folder_get_persist_prefs_recursive
73                                         (GNode *node, GHashTable *pptable);
74 static gboolean persist_prefs_free      (gpointer key, gpointer val, gpointer data);
75 void folder_item_read_cache             (FolderItem *item);
76 void folder_item_free_cache             (FolderItem *item);
77 gint folder_item_scan_full              (FolderItem *item, gboolean filtering);
78 static void folder_item_update_with_msg (FolderItem *item, FolderItemUpdateFlags update_flags,
79                                          MsgInfo *msg);
80
81 void folder_system_init(void)
82 {
83         folder_register_class(mh_get_class());
84         folder_register_class(imap_get_class());
85         folder_register_class(news_get_class());
86 }
87
88 GSList *folder_get_class_list(void)
89 {
90         return class_list;
91 }
92
93 void folder_register_class(FolderClass *klass)
94 {
95         GSList *xmllist, *cur;
96
97         debug_print("registering folder class %s\n", klass->idstr);
98
99         class_list = g_slist_append(class_list, klass);
100
101         xmllist = g_slist_copy(folder_unloaded_list);
102         for (cur = xmllist; cur != NULL; cur = g_slist_next(cur)) {
103                 GNode *node = (GNode *) cur->data;
104                 XMLNode *xmlnode = (XMLNode *) node->data;
105                 GList *cur = xmlnode->tag->attr;
106
107                 for (; cur != NULL; cur = g_list_next(cur)) {
108                         XMLAttr *attr = (XMLAttr *) cur->data;
109
110                         if (!attr || !attr->name || !attr->value) continue;
111                         if (!strcmp(attr->name, "type") && !strcmp(attr->value, klass->idstr)) {
112                                 Folder *folder;
113
114                                 folder = folder_get_from_xml(node);
115                                 folder_add(folder);
116                                 folder_unloaded_list = g_slist_remove(folder_unloaded_list, node);
117
118                                 cur = NULL;
119                                 continue;
120                         }
121                 }
122         }
123         g_slist_free(xmllist);
124 }
125
126 void folder_unregister_class(FolderClass *klass)
127 {
128         GList *folderlist, *cur;
129
130         debug_print("unregistering folder class %s\n", klass->idstr);
131
132         class_list = g_slist_remove(class_list, klass);
133
134         folderlist = g_list_copy(folder_get_list());
135         for (cur = folderlist; cur != NULL; cur = g_list_next(cur)) {
136                 Folder *folder = (Folder *) cur->data;
137
138                 if (folder->klass == klass) {
139                         GNode *xmlnode = folder_get_xml_node(folder);
140                         folder_unloaded_list = g_slist_append(folder_unloaded_list, xmlnode);
141                         folder_destroy(folder);
142                 }
143         }
144         g_list_free(folderlist);
145 }
146
147 Folder *folder_new(FolderClass *klass, const gchar *name, const gchar *path)
148 {
149         Folder *folder = NULL;
150         FolderItem *item;
151
152         g_return_val_if_fail(klass != NULL, NULL);
153
154         name = name ? name : path;
155         folder = klass->new_folder(name, path);
156
157         /* Create root folder item */
158         item = folder_item_new(folder, name, NULL);
159         if (item == NULL) {
160                 return NULL;
161         }
162         item->folder = folder;
163         folder->node = item->node = g_node_new(item);
164         folder->data = NULL;
165
166         return folder;
167 }
168
169 void folder_init(Folder *folder, const gchar *name)
170 {
171         g_return_if_fail(folder != NULL);
172
173         folder_set_name(folder, name);
174
175         /* Init folder data */
176         folder->account = NULL;
177         folder->sort = 0;
178         folder->inbox = NULL;
179         folder->outbox = NULL;
180         folder->draft = NULL;
181         folder->queue = NULL;
182         folder->trash = NULL;
183 }
184
185 void folder_destroy(Folder *folder)
186 {
187         g_return_if_fail(folder != NULL);
188         g_return_if_fail(folder->klass->destroy_folder != NULL);
189
190         folder_remove(folder);
191
192         folder_tree_destroy(folder);
193
194         folder->klass->destroy_folder(folder);
195
196         g_free(folder->name);
197         g_free(folder);
198 }
199
200 void folder_set_xml(Folder *folder, XMLTag *tag)
201 {
202         GList *cur;
203         FolderItem *rootitem = NULL;
204
205         if ((folder->node != NULL) && (folder->node->data != NULL))
206                 rootitem = (FolderItem *) folder->node->data;
207
208         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
209                 XMLAttr *attr = (XMLAttr *) cur->data;
210
211                 if (!attr || !attr->name || !attr->value) continue;
212                 if (!strcmp(attr->name, "name")) {
213                         if (folder->name != NULL)
214                                 g_free(folder->name);
215                         folder->name = g_strdup(attr->value);
216                         if (rootitem != NULL) {
217                                 if (rootitem->name != NULL)
218                                         g_free(rootitem->name);
219                                 rootitem->name = g_strdup(attr->value);
220                         }
221                 } else if (!strcmp(attr->name, "account_id")) {
222                         PrefsAccount *account;
223
224                         account = account_find_from_id(atoi(attr->value));
225                         if (!account)
226                                 g_warning("account_id: %s not found\n", attr->value);
227                         else {
228                                 folder->account = account;
229                                 account->folder = folder;
230                         }
231                 } else if (!strcmp(attr->name, "collapsed")) {
232                         if (rootitem != NULL)
233                                 rootitem->collapsed = *attr->value == '1' ? TRUE : FALSE;
234                 } else if (!strcmp(attr->name, "sort")) {
235                         folder->sort = atoi(attr->value);
236                 }
237         }
238 }
239
240 XMLTag *folder_get_xml(Folder *folder)
241 {
242         XMLTag *tag;
243
244         tag = xml_tag_new("folder");
245
246         if (folder->name)
247                 xml_tag_add_attr(tag, xml_attr_new("name", folder->name));
248         if (folder->account)
249                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", folder->account->account_id));
250         if (folder->node && folder->node->data) {
251                 FolderItem *rootitem = (FolderItem *) folder->node->data;
252
253                 xml_tag_add_attr(tag, xml_attr_new("collapsed", rootitem->collapsed ? "1" : "0"));
254         }
255         xml_tag_add_attr(tag, xml_attr_new_int("sort", folder->sort));
256
257         return tag;
258 }
259
260 FolderItem *folder_item_new(Folder *folder, const gchar *name, const gchar *path)
261 {
262         FolderItem *item = NULL;
263         
264         g_return_val_if_fail(folder != NULL, NULL);
265         
266         if (folder->klass->item_new) {
267                 item = folder->klass->item_new(folder);
268         } else {
269                 item = g_new0(FolderItem, 1);
270         }
271
272         g_return_val_if_fail(item != NULL, NULL);
273
274         item->stype = F_NORMAL;
275         item->name = g_strdup(name);
276         item->path = g_strdup(path);
277         item->mtime = 0;
278         item->new_msgs = 0;
279         item->unread_msgs = 0;
280         item->unreadmarked_msgs = 0;
281         item->marked_msgs = 0;
282         item->total_msgs = 0;
283         item->last_num = -1;
284         item->cache = NULL;
285         item->no_sub = FALSE;
286         item->no_select = FALSE;
287         item->collapsed = FALSE;
288         item->thread_collapsed = FALSE;
289         item->threaded  = TRUE;
290         item->ret_rcpt  = FALSE;
291         item->opened    = FALSE;
292         item->node = g_node_new(item);
293         item->folder = NULL;
294         item->account = NULL;
295         item->apply_sub = FALSE;
296         item->mark_queue = NULL;
297         item->data = NULL;
298         item->parent_stype = -1;
299
300         item->sort_key = SORT_BY_DATE;
301         item->sort_type = SORT_ASCENDING;
302
303         item->prefs = folder_item_prefs_new();
304
305         return item;
306 }
307
308 void folder_item_append(FolderItem *parent, FolderItem *item)
309 {
310         g_return_if_fail(parent != NULL);
311         g_return_if_fail(parent->folder != NULL);
312         g_return_if_fail(parent->node != NULL);
313         g_return_if_fail(item != NULL);
314
315         item->folder = parent->folder;
316         g_node_append(parent->node, item->node);
317 }
318
319 void folder_item_remove(FolderItem *item)
320 {
321         GNode *node, *start_node;
322         FolderUpdateData hookdata;
323
324         g_return_if_fail(item != NULL);
325         g_return_if_fail(item->folder != NULL);
326         g_return_if_fail(item->folder->node != NULL);
327
328         start_node = node = item->node;
329         
330         node = item->folder->node;
331         
332         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
333         node = node->children;
334
335         /* remove my children */
336         while (node != NULL) {
337                 if (node && node->data) {
338                         FolderItem *sub_item = (FolderItem*) node->data;
339                         node = node->next;
340                         folder_item_remove(sub_item);
341                 }
342         }
343         
344         /* remove myself */
345         if (item->cache != NULL) {
346                 msgcache_destroy(item->cache);
347                 item->cache = NULL;
348         }
349
350         hookdata.folder = item->folder;
351         hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_REMOVE_FOLDERITEM;
352         hookdata.item = item;
353         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
354
355         node = start_node;
356
357         if (item->folder->node == node)
358                 item->folder->node = NULL;
359
360         folder_item_destroy(item);
361
362         g_node_destroy(node);
363 }
364
365 void folder_item_remove_children(FolderItem *item)
366 {
367         GNode *node, *next;
368
369         g_return_if_fail(item != NULL);
370         g_return_if_fail(item->folder != NULL);
371         g_return_if_fail(item->node != NULL);
372
373         node = item->node->children;
374         while (node != NULL) {
375                 next = node->next;
376                 folder_item_remove(FOLDER_ITEM(node->data));
377                 node = next;
378         }
379 }
380
381 void folder_item_destroy(FolderItem *item)
382 {
383         Folder *folder;
384
385         g_return_if_fail(item != NULL);
386
387         folder = item->folder;
388         if (folder) {
389                 if (folder->inbox == item)
390                         folder->inbox = NULL;
391                 else if (folder->outbox == item)
392                         folder->outbox = NULL;
393                 else if (folder->draft == item)
394                         folder->draft = NULL;
395                 else if (folder->queue == item)
396                         folder->queue = NULL;
397                 else if (folder->trash == item)
398                         folder->trash = NULL;
399         }
400
401         if (item->cache)
402                 folder_item_free_cache(item);
403         if (item->prefs)
404                 folder_item_prefs_free(item->prefs);
405         g_free(item->name);
406         g_free(item->path);
407
408         if (item->folder != NULL) {
409                 if(item->folder->klass->item_destroy) {
410                         item->folder->klass->item_destroy(item->folder, item);
411                 } else {
412                         g_free(item);
413                 }
414         }
415 }
416
417 FolderItem *folder_item_parent(FolderItem *item)
418 {
419         g_return_val_if_fail(item != NULL, NULL);
420         g_return_val_if_fail(item->node != NULL, NULL);
421
422         if (item->node->parent == NULL)
423                 return NULL;
424         return (FolderItem *) item->node->parent->data;
425 }
426
427 void folder_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
428 {
429         GList *cur;
430
431         for (cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
432                 XMLAttr *attr = (XMLAttr *) cur->data;
433
434                 if (!attr || !attr->name || !attr->value) continue;
435                 if (!strcmp(attr->name, "type")) {
436                         if (!g_ascii_strcasecmp(attr->value, "normal"))
437                                 item->stype = F_NORMAL;
438                         else if (!g_ascii_strcasecmp(attr->value, "inbox"))
439                                 item->stype = F_INBOX;
440                         else if (!g_ascii_strcasecmp(attr->value, "outbox"))
441                                 item->stype = F_OUTBOX;
442                         else if (!g_ascii_strcasecmp(attr->value, "draft"))
443                                 item->stype = F_DRAFT;
444                         else if (!g_ascii_strcasecmp(attr->value, "queue"))
445                                 item->stype = F_QUEUE;
446                         else if (!g_ascii_strcasecmp(attr->value, "trash"))
447                                 item->stype = F_TRASH;
448                 } else if (!strcmp(attr->name, "name")) {
449                         if (item->name != NULL)
450                                 g_free(item->name);
451                         item->name = g_strdup(attr->value);
452                 } else if (!strcmp(attr->name, "path")) {
453                         if (item->path != NULL)
454                                 g_free(item->path);
455                         item->path = g_strdup(attr->value);
456                 } else if (!strcmp(attr->name, "mtime"))
457                         item->mtime = strtoul(attr->value, NULL, 10);
458                 else if (!strcmp(attr->name, "new"))
459                         item->new_msgs = atoi(attr->value);
460                 else if (!strcmp(attr->name, "unread"))
461                         item->unread_msgs = atoi(attr->value);
462                 else if (!strcmp(attr->name, "unreadmarked"))
463                         item->unreadmarked_msgs = atoi(attr->value);
464                 else if (!strcmp(attr->name, "marked"))
465                         item->marked_msgs = atoi(attr->value);
466                 else if (!strcmp(attr->name, "total"))
467                         item->total_msgs = atoi(attr->value);
468                 else if (!strcmp(attr->name, "no_sub"))
469                         item->no_sub = *attr->value == '1' ? TRUE : FALSE;
470                 else if (!strcmp(attr->name, "no_select"))
471                         item->no_select = *attr->value == '1' ? TRUE : FALSE;
472                 else if (!strcmp(attr->name, "collapsed"))
473                         item->collapsed = *attr->value == '1' ? TRUE : FALSE;
474                 else if (!strcmp(attr->name, "thread_collapsed"))
475                         item->thread_collapsed =  *attr->value == '1' ? TRUE : FALSE;
476                 else if (!strcmp(attr->name, "threaded"))
477                         item->threaded =  *attr->value == '1' ? TRUE : FALSE;
478                 else if (!strcmp(attr->name, "hidereadmsgs"))
479                         item->hide_read_msgs =  *attr->value == '1' ? TRUE : FALSE;
480                 else if (!strcmp(attr->name, "reqretrcpt"))
481                         item->ret_rcpt =  *attr->value == '1' ? TRUE : FALSE;
482                 else if (!strcmp(attr->name, "sort_key")) {
483                         if (!strcmp(attr->value, "none"))
484                                 item->sort_key = SORT_BY_NONE;
485                         else if (!strcmp(attr->value, "number"))
486                                 item->sort_key = SORT_BY_NUMBER;
487                         else if (!strcmp(attr->value, "size"))
488                                 item->sort_key = SORT_BY_SIZE;
489                         else if (!strcmp(attr->value, "date"))
490                                 item->sort_key = SORT_BY_DATE;
491                         else if (!strcmp(attr->value, "from"))
492                                 item->sort_key = SORT_BY_FROM;
493                         else if (!strcmp(attr->value, "subject"))
494                                 item->sort_key = SORT_BY_SUBJECT;
495                         else if (!strcmp(attr->value, "score"))
496                                 item->sort_key = SORT_BY_SCORE;
497                         else if (!strcmp(attr->value, "label"))
498                                 item->sort_key = SORT_BY_LABEL;
499                         else if (!strcmp(attr->value, "mark"))
500                                 item->sort_key = SORT_BY_MARK;
501                         else if (!strcmp(attr->value, "unread"))
502                                 item->sort_key = SORT_BY_STATUS;
503                         else if (!strcmp(attr->value, "mime"))
504                                 item->sort_key = SORT_BY_MIME;
505                         else if (!strcmp(attr->value, "to"))
506                                 item->sort_key = SORT_BY_TO;
507                         else if (!strcmp(attr->value, "locked"))
508                                 item->sort_key = SORT_BY_LOCKED;
509                 } else if (!strcmp(attr->name, "sort_type")) {
510                         if (!strcmp(attr->value, "ascending"))
511                                 item->sort_type = SORT_ASCENDING;
512                         else
513                                 item->sort_type = SORT_DESCENDING;
514                 } else if (!strcmp(attr->name, "account_id")) {
515                         PrefsAccount *account;
516
517                         account = account_find_from_id(atoi(attr->value));
518                         if (!account)
519                                 g_warning("account_id: %s not found\n", attr->value);
520                         else
521                                 item->account = account;
522                 } else if (!strcmp(attr->name, "apply_sub"))
523                         item->apply_sub = *attr->value == '1' ? TRUE : FALSE;
524         }
525 }
526
527 XMLTag *folder_item_get_xml(Folder *folder, FolderItem *item)
528 {
529         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
530                                                  "draft", "queue", "trash"};
531         static gchar *sort_key_str[] = {"none", "number", "size", "date",
532                                         "from", "subject", "score", "label",
533                                         "mark", "unread", "mime", "to", 
534                                         "locked"};
535         XMLTag *tag;
536         gchar *value;
537
538         tag = xml_tag_new("folderitem");
539
540         xml_tag_add_attr(tag, xml_attr_new("type", folder_item_stype_str[item->stype]));
541         if (item->name)
542                 xml_tag_add_attr(tag, xml_attr_new("name", item->name));
543         if (item->path)
544                 xml_tag_add_attr(tag, xml_attr_new("path", item->path));
545         if (item->no_sub)
546                 xml_tag_add_attr(tag, xml_attr_new("no_sub", "1"));
547         if (item->no_select)
548                 xml_tag_add_attr(tag, xml_attr_new("no_select", "1"));
549         xml_tag_add_attr(tag, xml_attr_new("collapsed", item->collapsed && item->node->children ? "1" : "0"));
550         xml_tag_add_attr(tag, xml_attr_new("thread_collapsed", item->thread_collapsed ? "1" : "0"));
551         xml_tag_add_attr(tag, xml_attr_new("threaded", item->threaded ? "1" : "0"));
552         xml_tag_add_attr(tag, xml_attr_new("hidereadmsgs", item->hide_read_msgs ? "1" : "0"));
553         if (item->ret_rcpt)
554                 xml_tag_add_attr(tag, xml_attr_new("reqretrcpt", "1"));
555
556         if (item->sort_key != SORT_BY_NONE) {
557                 xml_tag_add_attr(tag, xml_attr_new("sort_key", sort_key_str[item->sort_key]));
558                 xml_tag_add_attr(tag, xml_attr_new("sort_type", item->sort_type == SORT_ASCENDING ? "ascending" : "descending"));
559         }
560
561         value = g_strdup_printf("%ld", (unsigned long int) item->mtime);
562         xml_tag_add_attr(tag, xml_attr_new("mtime", value));
563         g_free(value);
564         xml_tag_add_attr(tag, xml_attr_new_int("new", item->new_msgs));
565         xml_tag_add_attr(tag, xml_attr_new_int("unread", item->unread_msgs));
566         xml_tag_add_attr(tag, xml_attr_new_int("unreadmarked", item->unreadmarked_msgs));
567         xml_tag_add_attr(tag, xml_attr_new_int("marked", item->marked_msgs));
568         xml_tag_add_attr(tag, xml_attr_new_int("total", item->total_msgs));
569
570         if (item->account)
571                 xml_tag_add_attr(tag, xml_attr_new_int("account_id", item->account->account_id));
572         if (item->apply_sub)
573                 xml_tag_add_attr(tag, xml_attr_new("apply_sub", "1"));
574
575         return tag;
576 }
577
578 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
579 {
580         g_return_if_fail(folder != NULL);
581
582         folder->ui_func = func;
583         folder->ui_func_data = data;
584 }
585
586 void folder_set_name(Folder *folder, const gchar *name)
587 {
588         g_return_if_fail(folder != NULL);
589
590         g_free(folder->name);
591         folder->name = name ? g_strdup(name) : NULL;
592         if (folder->node && folder->node->data) {
593                 FolderItem *item = (FolderItem *)folder->node->data;
594
595                 g_free(item->name);
596                 item->name = name ? g_strdup(name) : NULL;
597         }
598 }
599
600 void folder_set_sort(Folder *folder, guint sort)
601 {
602         g_return_if_fail(folder != NULL);
603
604         if (folder->sort != sort) {
605                 folder_remove(folder);
606                 folder->sort = sort;
607                 folder_add(folder);
608         }
609 }
610
611 gboolean folder_tree_destroy_func(GNode *node, gpointer data) {
612         FolderItem *item = (FolderItem *) node->data;
613
614         folder_item_destroy(item);
615         return FALSE;
616 }
617
618 void folder_tree_destroy(Folder *folder)
619 {
620         GNode *node;
621
622         g_return_if_fail(folder != NULL);
623
624         node = folder->node;
625         
626         prefs_filtering_clear_folder(folder);
627
628         if (node != NULL) {
629                 g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
630                                 folder_tree_destroy_func, NULL);
631                 g_node_destroy(node);
632                 folder->node = NULL;
633         }
634 }
635
636 void folder_add(Folder *folder)
637 {
638         Folder *cur_folder;
639         GList *cur;
640         gint i;
641         FolderUpdateData hookdata;
642
643         g_return_if_fail(folder != NULL);
644
645         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
646                 cur_folder = FOLDER(cur->data);
647                 if (cur_folder->sort < folder->sort)
648                         break;
649         }
650
651         folder_list = g_list_insert(folder_list, folder, i);
652
653         hookdata.folder = folder;
654         hookdata.update_flags = FOLDER_ADD_FOLDER;
655         hookdata.item = NULL;
656         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
657 }
658
659 void folder_remove(Folder *folder)
660 {
661         FolderUpdateData hookdata;
662
663         g_return_if_fail(folder != NULL);
664
665         folder_list = g_list_remove(folder_list, folder);
666
667         hookdata.folder = folder;
668         hookdata.update_flags = FOLDER_REMOVE_FOLDER;
669         hookdata.item = NULL;
670         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
671 }
672
673 GList *folder_get_list(void)
674 {
675         return folder_list;
676 }
677
678 gint folder_read_list(void)
679 {
680         GNode *node, *cur;
681         XMLNode *xmlnode;
682         gchar *path;
683
684         path = folder_get_list_path();
685         if (!is_file_exist(path)) return -1;
686         node = xml_parse_file(path);
687         if (!node) return -1;
688
689         xmlnode = node->data;
690         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
691                 g_warning("wrong folder list\n");
692                 xml_free_tree(node);
693                 return -1;
694         }
695
696         cur = node->children;
697         while (cur != NULL) {
698                 Folder *folder;
699
700                 folder = folder_get_from_xml(cur);
701                 if (folder != NULL)
702                         folder_add(folder);
703                 else
704                         folder_unloaded_list = g_slist_append(folder_unloaded_list,
705                                 (gpointer) xml_copy_tree(cur));
706                 cur = cur->next;
707         }
708
709         xml_free_tree(node);
710         if (folder_list)
711                 return 0;
712         else
713                 return -1;
714 }
715
716 void folder_write_list(void)
717 {
718         GList *list;
719         GSList *slist;
720         Folder *folder;
721         gchar *path;
722         PrefFile *pfile;
723         GNode *rootnode;
724         XMLNode *xmlnode;
725         XMLTag *tag;
726
727         path = folder_get_list_path();
728         if ((pfile = prefs_write_open(path)) == NULL) return;
729
730         xml_file_put_xml_decl(pfile->fp);
731         tag = xml_tag_new("folderlist");
732
733         xmlnode = xml_node_new(tag, NULL);
734
735         rootnode = g_node_new(xmlnode);
736
737         for (list = folder_list; list != NULL; list = list->next) {
738                 GNode *node;
739
740                 folder = list->data;
741                 node = folder_get_xml_node(folder);
742                 if (node != NULL)
743                         g_node_append(rootnode, node);
744         }
745
746         for (slist = folder_unloaded_list; slist != NULL; slist = g_slist_next(slist)) {
747                 GNode *node = (GNode *) slist->data;
748
749                 g_node_append(rootnode, (gpointer) xml_copy_tree(node));
750         }
751
752         xml_write_tree(rootnode, pfile->fp);
753
754         if (prefs_file_close(pfile) < 0)
755                 g_warning("failed to write folder list.\n");
756
757         xml_free_tree(rootnode);
758 }
759
760 gboolean folder_scan_tree_func(GNode *node, gpointer data)
761 {
762         GHashTable *pptable = (GHashTable *)data;
763         FolderItem *item = (FolderItem *)node->data;
764         
765         folder_item_restore_persist_prefs(item, pptable);
766         folder_item_scan_full(item, FALSE);
767
768         return FALSE;
769 }
770
771 void folder_scan_tree(Folder *folder, gboolean rebuild)
772 {
773         GHashTable *pptable;
774         FolderUpdateData hookdata;
775         
776         if (!folder->klass->scan_tree)
777                 return;
778         
779         pptable = folder_persist_prefs_new(folder);
780
781         if (rebuild)
782                 folder_tree_destroy(folder);
783
784         folder->klass->scan_tree(folder);
785
786         hookdata.folder = folder;
787         hookdata.update_flags = FOLDER_TREE_CHANGED;
788         hookdata.item = NULL;
789         hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
790
791         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1, folder_scan_tree_func, pptable);
792         folder_persist_prefs_free(pptable);
793
794         prefs_matcher_read_config();
795
796         folder_write_list();
797 }
798
799 FolderItem *folder_create_folder(FolderItem *parent, const gchar *name)
800 {
801         FolderItem *new_item;
802
803         new_item = parent->folder->klass->create_folder(parent->folder, parent, name);
804         if (new_item) {
805                 FolderUpdateData hookdata;
806
807                 new_item->cache = msgcache_new();
808
809                 hookdata.folder = new_item->folder;
810                 hookdata.update_flags = FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDERITEM;
811                 hookdata.item = new_item;
812                 hooks_invoke(FOLDER_UPDATE_HOOKLIST, &hookdata);
813         }
814
815         return new_item;
816 }
817
818 gint folder_item_rename(FolderItem *item, gchar *newname)
819 {
820         gint retval;
821
822         g_return_val_if_fail(item != NULL, -1);
823         g_return_val_if_fail(newname != NULL, -1);
824
825         retval = item->folder->klass->rename_folder(item->folder, item, newname);
826
827         if (retval >= 0) {
828                 FolderItemUpdateData hookdata;
829
830                 hookdata.item = item;
831                 hookdata.update_flags = F_ITEM_UPDATE_NAME;
832                 hookdata.msg = NULL;
833                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
834         }
835
836         return retval;
837 }
838
839 struct TotalMsgCount
840 {
841         guint new_msgs;
842         guint unread_msgs;
843         guint unreadmarked_msgs;
844         guint marked_msgs;
845         guint total_msgs;
846 };
847
848 struct FuncToAllFoldersData
849 {
850         FolderItemFunc  function;
851         gpointer        data;
852 };
853
854 static gboolean folder_func_to_all_folders_func(GNode *node, gpointer data)
855 {
856         FolderItem *item;
857         struct FuncToAllFoldersData *function_data = (struct FuncToAllFoldersData *) data;
858
859         g_return_val_if_fail(node->data != NULL, FALSE);
860
861         item = FOLDER_ITEM(node->data);
862         g_return_val_if_fail(item != NULL, FALSE);
863
864         function_data->function(item, function_data->data);
865
866         return FALSE;
867 }
868
869 void folder_func_to_all_folders(FolderItemFunc function, gpointer data)
870 {
871         GList *list;
872         Folder *folder;
873         struct FuncToAllFoldersData function_data;
874         
875         function_data.function = function;
876         function_data.data = data;
877
878         for (list = folder_list; list != NULL; list = list->next) {
879                 folder = FOLDER(list->data);
880                 if (folder->node)
881                         g_node_traverse(folder->node, G_PRE_ORDER,
882                                         G_TRAVERSE_ALL, -1,
883                                         folder_func_to_all_folders_func,
884                                         &function_data);
885         }
886 }
887
888 static void folder_count_total_msgs_func(FolderItem *item, gpointer data)
889 {
890         struct TotalMsgCount *count = (struct TotalMsgCount *)data;
891
892         count->new_msgs += item->new_msgs;
893         count->unread_msgs += item->unread_msgs;
894         count->unreadmarked_msgs += item->unreadmarked_msgs;
895         count->marked_msgs += item->marked_msgs;
896         count->total_msgs += item->total_msgs;
897 }
898
899 struct TotalMsgStatus
900 {
901         guint new;
902         guint unread;
903         guint total;
904         GString *str;
905 };
906
907 static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)
908 {
909         FolderItem *item;
910         struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;
911         gchar *id;
912  
913         g_return_val_if_fail(node->data != NULL, FALSE);
914  
915         item = FOLDER_ITEM(node->data);
916
917         if (!item->path) return FALSE;
918
919         status->new += item->new_msgs;
920         status->unread += item->unread_msgs;
921         status->total += item->total_msgs;
922
923         if (status->str) {
924                 id = folder_item_get_identifier(item);
925                 g_string_append_printf(status->str, "%5d %5d %5d %s\n",
926                                   item->new_msgs, item->unread_msgs,
927                                   item->total_msgs, id);
928                 g_free(id);
929         }
930  
931         return FALSE;
932  }
933  
934 static void folder_get_status_full_all(GString *str, guint *new, guint *unread,
935                                        guint *total)
936 {
937         GList *list;
938         Folder *folder;
939         struct TotalMsgStatus status;
940  
941         status.new = status.unread = status.total = 0;
942         status.str = str;
943  
944         debug_print("Counting total number of messages...\n");
945  
946         for (list = folder_list; list != NULL; list = list->next) {
947                 folder = FOLDER(list->data);
948                 if (folder->node)
949                         g_node_traverse(folder->node, G_PRE_ORDER,
950                                         G_TRAVERSE_ALL, -1,
951                                         folder_get_status_full_all_func,
952                                         &status);
953         }
954  
955         *new = status.new;
956         *unread = status.unread;
957         *total = status.total;
958 }
959
960 gchar *folder_get_status(GPtrArray *folders, gboolean full)
961 {
962         guint new, unread, total;
963         GString *str;
964         gint i;
965         gchar *ret;
966
967         new = unread = total = 0;
968
969         str = g_string_new(NULL);
970
971         if (folders) {
972                 for (i = 0; i < folders->len; i++) {
973                         FolderItem *item;
974
975                         item = g_ptr_array_index(folders, i);
976                         new += item->new_msgs;
977                         unread += item->unread_msgs;
978                         total += item->total_msgs;
979
980                         if (full) {
981                                 gchar *id;
982
983                                 id = folder_item_get_identifier(item);
984                                 g_string_append_printf(str, "%5d %5d %5d %s\n",
985                                                   item->new_msgs, item->unread_msgs,
986                                                   item->total_msgs, id);
987                                 g_free(id);
988                         }
989                 }
990         } else {
991                 folder_get_status_full_all(full ? str : NULL,
992                                            &new, &unread, &total);
993         }
994
995         if (full)
996                 g_string_append_printf(str, "%5d %5d %5d\n", new, unread, total);
997         else
998                 g_string_append_printf(str, "%d %d %d\n", new, unread, total);
999
1000         ret = str->str;
1001         g_string_free(str, FALSE);
1002  
1003         return ret;
1004 }
1005
1006 void folder_count_total_msgs(guint *new_msgs, guint *unread_msgs, 
1007                              guint *unreadmarked_msgs, guint *marked_msgs,
1008                              guint *total_msgs)
1009 {
1010         struct TotalMsgCount count;
1011
1012         count.new_msgs = count.unread_msgs = count.unreadmarked_msgs = count.total_msgs = 0;
1013
1014         debug_print("Counting total number of messages...\n");
1015
1016         folder_func_to_all_folders(folder_count_total_msgs_func, &count);
1017
1018         *new_msgs = count.new_msgs;
1019         *unread_msgs = count.unread_msgs;
1020         *unreadmarked_msgs = count.unreadmarked_msgs;
1021         *marked_msgs = count.marked_msgs;
1022         *total_msgs = count.total_msgs;
1023 }
1024
1025 Folder *folder_find_from_path(const gchar *path)
1026 {
1027         GList *list;
1028         Folder *folder;
1029
1030         for (list = folder_list; list != NULL; list = list->next) {
1031                 folder = list->data;
1032                 if ((FOLDER_TYPE(folder) == F_MH || 
1033                      FOLDER_TYPE(folder) == F_MBOX) &&
1034                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
1035                         return folder;
1036         }
1037
1038         return NULL;
1039 }
1040
1041 Folder *folder_find_from_name(const gchar *name, FolderClass *klass)
1042 {
1043         GList *list;
1044         Folder *folder;
1045
1046         for (list = folder_list; list != NULL; list = list->next) {
1047                 folder = list->data;
1048                 if (folder->klass == klass && 
1049                     strcmp2(name, folder->name) == 0)
1050                         return folder;
1051         }
1052
1053         return NULL;
1054 }
1055
1056 static gboolean folder_item_find_func(GNode *node, gpointer data)
1057 {
1058         FolderItem *item = node->data;
1059         gpointer *d = data;
1060         const gchar *path = d[0];
1061
1062         if (path_cmp(path, item->path) != 0)
1063                 return FALSE;
1064
1065         d[1] = item;
1066
1067         return TRUE;
1068 }
1069
1070 FolderItem *folder_find_item_from_path(const gchar *path)
1071 {
1072         Folder *folder;
1073         gpointer d[2];
1074
1075         folder = folder_get_default_folder();
1076         g_return_val_if_fail(folder != NULL, NULL);
1077
1078         d[0] = (gpointer)path;
1079         d[1] = NULL;
1080         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1081                         folder_item_find_func, d);
1082         return d[1];
1083 }
1084
1085 FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)
1086 {
1087         GNode *node;
1088         FolderItem *child;
1089
1090         for (node = item->node->children; node != NULL; node = node->next) {
1091                 gchar *base;
1092                 child = FOLDER_ITEM(node->data);
1093                 base = g_path_get_basename(child->path);
1094                 if (strcmp2(base, name) == 0) {
1095                         g_free(base);
1096                         return child;
1097                 }
1098                 g_free(base);
1099         }
1100
1101         return NULL;
1102 }
1103
1104 FolderClass *folder_get_class_from_string(const gchar *str)
1105 {
1106         GSList *classlist;
1107
1108         classlist = folder_get_class_list();
1109         for (; classlist != NULL; classlist = g_slist_next(classlist)) {
1110                 FolderClass *class = (FolderClass *) classlist->data;
1111                 if (g_ascii_strcasecmp(class->idstr, str) == 0)
1112                         return class;
1113         }
1114
1115         return NULL;
1116 }
1117
1118 gchar *folder_get_identifier(Folder *folder)
1119 {
1120         gchar *type_str;
1121
1122         g_return_val_if_fail(folder != NULL, NULL);
1123
1124         type_str = folder->klass->idstr;
1125         return g_strconcat("#", type_str, "/", folder->name, NULL);
1126 }
1127
1128 gchar *folder_item_get_identifier(FolderItem *item)
1129 {
1130         gchar *id = NULL;
1131         gchar *folder_id = NULL;
1132
1133         g_return_val_if_fail(item != NULL, NULL);
1134         g_return_val_if_fail(item->path != NULL, NULL);
1135
1136         folder_id = folder_get_identifier(item->folder);
1137         id = g_strconcat(folder_id, "/", item->path, NULL);
1138         g_free(folder_id);
1139
1140         return id;
1141 }
1142
1143 FolderItem *folder_find_item_from_identifier(const gchar *identifier)
1144 {
1145         Folder *folder;
1146         gpointer d[2];
1147         gchar *str;
1148         gchar *p;
1149         gchar *name;
1150         gchar *path;
1151         FolderClass *class;
1152
1153         g_return_val_if_fail(identifier != NULL, NULL);
1154
1155         if (*identifier != '#')
1156                 return folder_find_item_from_path(identifier);
1157
1158         Xstrdup_a(str, identifier, return NULL);
1159
1160         p = strchr(str, '/');
1161         if (!p)
1162                 return folder_find_item_from_path(identifier);
1163         *p = '\0';
1164         p++;
1165         class = folder_get_class_from_string(&str[1]);
1166         if (class == NULL)
1167                 return folder_find_item_from_path(identifier);
1168
1169         name = p;
1170         p = strchr(p, '/');
1171         if (!p)
1172                 return folder_find_item_from_path(identifier);
1173         *p = '\0';
1174         p++;
1175
1176         folder = folder_find_from_name(name, class);
1177         if (!folder)
1178                 return folder_find_item_from_path(identifier);
1179
1180         path = p;
1181
1182         d[0] = (gpointer)path;
1183         d[1] = NULL;
1184         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1185                         folder_item_find_func, d);
1186         return d[1];
1187 }
1188
1189 /**
1190  * Get a displayable name for a FolderItem
1191  *
1192  * \param item FolderItem for that a name should be created
1193  * \return Displayable name for item, returned string has to
1194  *         be freed
1195  */
1196 gchar *folder_item_get_name(FolderItem *item)
1197 {
1198         gchar *name = NULL;
1199
1200         g_return_val_if_fail(item != NULL, g_strdup(""));
1201
1202         switch (item->stype) {
1203         case F_INBOX:
1204                 name = g_strdup(!strcmp2(item->name, INBOX_DIR) ? _("Inbox") :
1205                                 item->name);
1206                 break;
1207         case F_OUTBOX:
1208                 name = g_strdup(!strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :
1209                                 item->name);
1210                 break;
1211         case F_QUEUE:
1212                 name = g_strdup(!strcmp2(item->name, QUEUE_DIR) ? _("Queue") :
1213                                 item->name);
1214                 break;
1215         case F_TRASH:
1216                 name = g_strdup(!strcmp2(item->name, TRASH_DIR) ? _("Trash") :
1217                                 item->name);
1218                 break;
1219         case F_DRAFT:
1220                 name = g_strdup(!strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :
1221                                 item->name);
1222                 break;
1223         default:
1224                 break;
1225         }
1226
1227         if (name == NULL) {
1228                 /*
1229                  * should probably be done by a virtual function,
1230                  * the folder knows the ui string and how to abbrev
1231                 */
1232                 if (folder_item_parent(item) == NULL) {
1233                         name = g_strconcat(item->name, " (", item->folder->klass->uistr, ")", NULL);
1234                 } else {
1235                         if (FOLDER_CLASS(item->folder) == news_get_class() &&
1236                             item->path && !strcmp2(item->name, item->path))
1237                                 name = get_abbrev_newsgroup_name
1238                                         (item->path,
1239                                          prefs_common.ng_abbrev_len);
1240                         else
1241                                 name = g_strdup(item->name);
1242                 }
1243         }
1244
1245         if (name == NULL)
1246                 name = g_strdup("");
1247
1248         return name;
1249 }
1250
1251 Folder *folder_get_default_folder(void)
1252 {
1253         return folder_list ? FOLDER(folder_list->data) : NULL;
1254 }
1255
1256 FolderItem *folder_get_default_inbox(void)
1257 {
1258         GList *flist;
1259
1260         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1261                 Folder * folder = FOLDER(flist->data);
1262
1263                 if (folder == NULL)
1264                         continue;
1265                 if (folder->inbox == NULL)
1266                         continue;
1267
1268                 return folder->inbox;
1269         }
1270
1271         return NULL;
1272 }
1273
1274 FolderItem *folder_get_default_outbox(void)
1275 {
1276         GList *flist;
1277
1278         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1279                 Folder * folder = FOLDER(flist->data);
1280
1281                 if (folder == NULL)
1282                         continue;
1283                 if (folder->outbox == NULL)
1284                         continue;
1285
1286                 return folder->outbox;
1287         }
1288
1289         return NULL;
1290 }
1291
1292 FolderItem *folder_get_default_draft(void)
1293 {
1294         GList *flist;
1295
1296         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1297                 Folder * folder = FOLDER(flist->data);
1298
1299                 if (folder == NULL)
1300                         continue;
1301                 if (folder->draft == NULL)
1302                         continue;
1303
1304                 return folder->draft;
1305         }
1306
1307         return NULL;
1308 }
1309
1310 FolderItem *folder_get_default_queue(void)
1311 {
1312         GList *flist;
1313
1314         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1315                 Folder * folder = FOLDER(flist->data);
1316
1317                 if (folder == NULL)
1318                         continue;
1319                 if (folder->queue == NULL)
1320                         continue;
1321
1322                 return folder->queue;
1323         }
1324
1325         return NULL;
1326 }
1327
1328 FolderItem *folder_get_default_trash(void)
1329 {
1330         GList *flist;
1331
1332         for (flist = folder_list; flist != NULL; flist = g_list_next(flist)) {
1333                 Folder * folder = FOLDER(flist->data);
1334
1335                 if (folder == NULL)
1336                         continue;
1337                 if (folder->trash == NULL)
1338                         continue;
1339
1340                 return folder->trash;
1341         }
1342
1343         return NULL;
1344 }
1345
1346 #define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)           \
1347 {                                                               \
1348         if (!folder->member) {                                  \
1349                 item = folder_item_new(folder, dir, dir);       \
1350                 item->stype = type;                             \
1351                 folder_item_append(rootitem, item);             \
1352                 folder->member = item;                          \
1353         }                                                       \
1354 }
1355
1356 void folder_set_missing_folders(void)
1357 {
1358         Folder *folder;
1359         FolderItem *rootitem;
1360         FolderItem *item;
1361         GList *list;
1362
1363         for (list = folder_list; list != NULL; list = list->next) {
1364                 folder = list->data;
1365                 if (FOLDER_TYPE(folder) != F_MH) continue;
1366                 rootitem = FOLDER_ITEM(folder->node->data);
1367                 g_return_if_fail(rootitem != NULL);
1368
1369                 if (folder->inbox && folder->outbox && folder->draft &&
1370                     folder->queue && folder->trash)
1371                         continue;
1372
1373                 if (folder->klass->create_tree(folder) < 0) {
1374                         g_warning("%s: can't create the folder tree.\n",
1375                                   LOCAL_FOLDER(folder)->rootpath);
1376                         continue;
1377                 }
1378
1379                 CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);
1380                 CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);
1381                 CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);
1382                 CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);
1383                 CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);
1384         }
1385 }
1386
1387 static gboolean folder_unref_account_func(GNode *node, gpointer data)
1388 {
1389         FolderItem *item = node->data;
1390         PrefsAccount *account = data;
1391
1392         if (item->account == account)
1393                 item->account = NULL;
1394
1395         return FALSE;
1396 }
1397
1398 void folder_unref_account_all(PrefsAccount *account)
1399 {
1400         Folder *folder;
1401         GList *list;
1402
1403         if (!account) return;
1404
1405         for (list = folder_list; list != NULL; list = list->next) {
1406                 folder = list->data;
1407                 if (folder->account == account)
1408                         folder->account = NULL;
1409                 g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1410                                 folder_unref_account_func, account);
1411         }
1412 }
1413
1414 #undef CREATE_FOLDER_IF_NOT_EXIST
1415
1416 gchar *folder_item_get_path(FolderItem *item)
1417 {
1418         Folder *folder;
1419
1420         g_return_val_if_fail(item != NULL, NULL);
1421         folder = item->folder;
1422         g_return_val_if_fail(folder != NULL, NULL);
1423
1424         return folder->klass->item_get_path(folder, item);
1425 }
1426
1427 void folder_item_set_default_flags(FolderItem *dest, MsgFlags *flags)
1428 {
1429         if (!(folder_has_parent_of_type(dest, F_OUTBOX) ||
1430               folder_has_parent_of_type(dest, F_QUEUE)  ||
1431               folder_has_parent_of_type(dest, F_DRAFT) ||
1432               folder_has_parent_of_type(dest, F_TRASH))) {
1433                 flags->perm_flags = MSG_NEW|MSG_UNREAD;
1434         } else {
1435                 flags->perm_flags = 0;
1436         }
1437         if (FOLDER_TYPE(dest->folder) == F_MH) {
1438                 if (folder_has_parent_of_type(dest, F_QUEUE)) {
1439                         MSG_SET_TMP_FLAGS(*flags, MSG_QUEUED);
1440                 } else if (folder_has_parent_of_type(dest, F_DRAFT)) {
1441                         MSG_SET_TMP_FLAGS(*flags, MSG_DRAFT);
1442                 }
1443         }
1444 }
1445
1446 static gint folder_sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1447 {
1448         MsgInfo *msginfo_a = (MsgInfo *) a;
1449         MsgInfo *msginfo_b = (MsgInfo *) b;
1450
1451         return (msginfo_a->msgnum - msginfo_b->msgnum);
1452 }
1453
1454 static gint folder_sort_folder_list(gconstpointer a, gconstpointer b)
1455 {
1456         guint gint_a = GPOINTER_TO_INT(a);
1457         guint gint_b = GPOINTER_TO_INT(b);
1458         
1459         return (gint_a - gint_b);
1460 }
1461
1462 void folder_item_process_open (FolderItem *item,
1463                                  void (*before_proc_func)(gpointer data),
1464                                  void (*after_proc_func)(gpointer data),
1465                                  gpointer data)
1466 {
1467         gchar *buf;
1468         if (item == NULL)
1469                 return;
1470         if((item->folder->klass->scan_required != NULL) &&
1471            (item->folder->klass->scan_required(item->folder, item))) {
1472                 folder_item_scan_full(item, TRUE);
1473         } else {
1474                 folder_item_syncronize_flags(item);
1475         }
1476         
1477         /* Processing */
1478         buf = g_strdup_printf(_("Processing (%s)...\n"), 
1479                               item->path ? item->path : item->name);
1480         debug_print("%s\n", buf);
1481         g_free(buf);
1482
1483         if (before_proc_func)
1484                 before_proc_func(data);
1485
1486         folder_item_apply_processing(item);
1487
1488         if (after_proc_func)
1489                 after_proc_func(data);
1490
1491         debug_print("done.\n");
1492         item->processing_pending = FALSE;
1493         return; 
1494 }
1495
1496 gint folder_item_open(FolderItem *item)
1497 {
1498         g_return_val_if_fail(item->no_select == FALSE, -1);
1499
1500         item->processing_pending = TRUE;
1501         folder_item_process_open (item, NULL, NULL, NULL);
1502         
1503         item->opened = TRUE;
1504
1505         return 0;
1506 }
1507
1508 gint folder_item_close(FolderItem *item)
1509 {
1510         GSList *mlist, *cur;
1511         Folder *folder;
1512         
1513         g_return_val_if_fail(item != NULL, -1);
1514         g_return_val_if_fail(item->no_select == FALSE, -1);
1515
1516         if (item->new_msgs) {
1517                 folder_item_update_freeze();
1518                 mlist = folder_item_get_msg_list(item);
1519                 for (cur = mlist ; cur != NULL ; cur = cur->next) {
1520                         MsgInfo * msginfo;
1521
1522                         msginfo = (MsgInfo *) cur->data;
1523                         if (MSG_IS_NEW(msginfo->flags))
1524                                 procmsg_msginfo_unset_flags(msginfo, MSG_NEW, 0);
1525                         procmsg_msginfo_free(msginfo);
1526                 }
1527                 g_slist_free(mlist);
1528                 folder_item_update_thaw();
1529         }               
1530
1531         folder_item_write_cache(item);
1532         
1533         folder_item_update(item, F_ITEM_UPDATE_MSGCNT);
1534
1535         item->opened = FALSE;
1536         folder = item->folder;
1537
1538         if (folder->klass->close == NULL)
1539                 return 0;
1540
1541         return folder->klass->close(folder, item);
1542 }
1543
1544 static MsgInfoList *get_msginfos(FolderItem *item, MsgNumberList *numlist)
1545 {
1546         MsgInfoList *msglist = NULL;
1547         Folder *folder = item->folder;
1548         g_return_val_if_fail(item->no_select == FALSE, NULL);
1549         
1550         if (folder->klass->get_msginfos != NULL)
1551                 msglist = folder->klass->get_msginfos(folder, item, numlist);
1552         else {
1553                 MsgNumberList *elem;
1554
1555                 for (elem = numlist; elem != NULL; elem = g_slist_next(elem)) {
1556                         MsgInfo *msginfo;
1557                         guint num;
1558
1559                         num = GPOINTER_TO_INT(elem->data);
1560                         msginfo = folder->klass->get_msginfo(folder, item, num);
1561                         if (msginfo != NULL)
1562                                 msglist = g_slist_prepend(msglist, msginfo);
1563                 }               
1564         }
1565
1566         return msglist;
1567 }
1568
1569 static MsgInfo *get_msginfo(FolderItem *item, guint num)
1570 {
1571         MsgNumberList numlist;
1572         MsgInfoList *msglist;
1573         MsgInfo *msginfo = NULL;
1574
1575         numlist.data = GINT_TO_POINTER(num);
1576         numlist.next = NULL;
1577         msglist = get_msginfos(item, &numlist);
1578         if (msglist != NULL)
1579                 msginfo = procmsg_msginfo_new_ref(msglist->data);
1580         procmsg_msg_list_free(msglist);
1581
1582         return msginfo;
1583 }
1584
1585 static gint syncronize_flags(FolderItem *item, MsgInfoList *msglist)
1586 {
1587         GRelation *relation;
1588         gint ret = 0;
1589         GSList *cur;
1590
1591         if(msglist == NULL)
1592                 return 0;
1593         if(item->folder->klass->get_flags == NULL)
1594                 return 0;
1595         g_return_val_if_fail(item->no_select == FALSE, 0);
1596
1597         relation = g_relation_new(2);
1598         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
1599         folder_item_set_batch(item, TRUE);
1600         if ((ret = item->folder->klass->get_flags(
1601             item->folder, item, msglist, relation)) == 0) {
1602                 GTuples *tuples;
1603                 MsgInfo *msginfo;
1604                 MsgPermFlags permflags = 0;
1605                 gboolean skip;
1606
1607                 for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
1608                         msginfo = (MsgInfo *) cur->data;
1609                 
1610                         tuples = g_relation_select(relation, msginfo, 0);
1611                         skip = tuples->len < 1;
1612                         if (!skip)
1613                                 permflags = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
1614                         g_tuples_destroy(tuples);
1615                         if (skip)
1616                                 continue;
1617                         
1618                         if (msginfo->flags.perm_flags != permflags) {
1619                                 procmsg_msginfo_change_flags(msginfo,
1620                                         permflags & ~msginfo->flags.perm_flags, 0,
1621                                         ~permflags & msginfo->flags.perm_flags, 0);
1622                         }
1623                 }
1624         }
1625         folder_item_set_batch(item, FALSE);
1626         g_relation_destroy(relation);   
1627
1628         return ret;
1629 }
1630
1631 gint folder_item_scan_full(FolderItem *item, gboolean filtering)
1632 {
1633         Folder *folder;
1634         GSList *folder_list = NULL, *cache_list = NULL;
1635         GSList *folder_list_cur, *cache_list_cur, *new_list = NULL;
1636         GSList *exists_list = NULL, *elem;
1637         GSList *newmsg_list = NULL;
1638         guint newcnt = 0, unreadcnt = 0, totalcnt = 0;
1639         guint markedcnt = 0, unreadmarkedcnt = 0;
1640         guint cache_max_num, folder_max_num, cache_cur_num, folder_cur_num;
1641         gboolean update_flags = 0, old_uids_valid = FALSE;
1642     
1643         g_return_val_if_fail(item != NULL, -1);
1644         if (item->path == NULL) return -1;
1645
1646         folder = item->folder;
1647
1648         g_return_val_if_fail(folder != NULL, -1);
1649         g_return_val_if_fail(folder->klass->get_num_list != NULL, -1);
1650
1651         debug_print("Scanning folder %s for cache changes.\n", item->path);
1652
1653         /* Get list of messages for folder and cache */
1654         if (folder->klass->get_num_list(item->folder, item, &folder_list, &old_uids_valid) < 0) {
1655                 debug_print("Error fetching list of message numbers\n");
1656                 return(-1);
1657         }
1658
1659         if (old_uids_valid) {
1660                 if (!item->cache)
1661                         folder_item_read_cache(item);
1662                 cache_list = msgcache_get_msg_list(item->cache);
1663         } else {
1664                 if (item->cache)
1665                         msgcache_destroy(item->cache);
1666                 item->cache = msgcache_new();
1667                 cache_list = NULL;
1668         }
1669
1670         /* Sort both lists */
1671         cache_list = g_slist_sort(cache_list, folder_sort_cache_list_by_msgnum);
1672         folder_list = g_slist_sort(folder_list, folder_sort_folder_list);
1673
1674         cache_list_cur = cache_list;
1675         folder_list_cur = folder_list;
1676
1677         if (cache_list_cur != NULL) {
1678                 GSList *cache_list_last;
1679         
1680                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1681                 cache_list_last = g_slist_last(cache_list);
1682                 cache_max_num = ((MsgInfo *)cache_list_last->data)->msgnum;
1683         } else {
1684                 cache_cur_num = G_MAXINT;
1685                 cache_max_num = 0;
1686         }
1687
1688         if (folder_list_cur != NULL) {
1689                 GSList *folder_list_last;
1690         
1691                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1692                 folder_list_last = g_slist_last(folder_list);
1693                 folder_max_num = GPOINTER_TO_INT(folder_list_last->data);
1694         } else {
1695                 folder_cur_num = G_MAXINT;
1696                 folder_max_num = 0;
1697         }
1698
1699         while ((cache_cur_num != G_MAXINT) || (folder_cur_num != G_MAXINT)) {
1700                 /*
1701                  *  Message only exists in the folder
1702                  *  Remember message for fetching
1703                  */
1704                 if (folder_cur_num < cache_cur_num) {
1705                         gboolean add = FALSE;
1706
1707                         switch(FOLDER_TYPE(folder)) {
1708                                 case F_NEWS:
1709                                         if (folder_cur_num < cache_max_num)
1710                                                 break;
1711                                         
1712                                         if (folder->account->max_articles == 0) {
1713                                                 add = TRUE;
1714                                         }
1715
1716                                         if (folder_max_num <= folder->account->max_articles) {
1717                                                 add = TRUE;
1718                                         } else if (folder_cur_num > (folder_max_num - folder->account->max_articles)) {
1719                                                 add = TRUE;
1720                                         }
1721                                         break;
1722                                 default:
1723                                         add = TRUE;
1724                                         break;
1725                         }
1726                         
1727                         if (add) {
1728                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(folder_cur_num));
1729                                 debug_print("Remembered message %d for fetching\n", folder_cur_num);
1730                         }
1731
1732                         /* Move to next folder number */
1733                         folder_list_cur = folder_list_cur->next;
1734
1735                         if (folder_list_cur != NULL)
1736                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1737                         else
1738                                 folder_cur_num = G_MAXINT;
1739
1740                         continue;
1741                 }
1742
1743                 /*
1744                  *  Message only exists in the cache
1745                  *  Remove the message from the cache
1746                  */
1747                 if (cache_cur_num < folder_cur_num) {
1748                         msgcache_remove_msg(item->cache, cache_cur_num);
1749                         debug_print("Removed message %d from cache.\n", cache_cur_num);
1750
1751                         /* Move to next cache number */
1752                         cache_list_cur = cache_list_cur->next;
1753
1754                         if (cache_list_cur != NULL)
1755                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1756                         else
1757                                 cache_cur_num = G_MAXINT;
1758
1759                         update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1760
1761                         continue;
1762                 }
1763
1764                 /*
1765                  *  Message number exists in folder and cache!
1766                  *  Check if the message has been modified
1767                  */
1768                 if (cache_cur_num == folder_cur_num) {
1769                         MsgInfo *msginfo;
1770
1771                         msginfo = msgcache_get_msg(item->cache, folder_cur_num);
1772                         if (folder->klass->is_msg_changed && folder->klass->is_msg_changed(folder, item, msginfo)) {
1773                                 msgcache_remove_msg(item->cache, msginfo->msgnum);
1774                                 new_list = g_slist_prepend(new_list, GINT_TO_POINTER(msginfo->msgnum));
1775                                 procmsg_msginfo_free(msginfo);
1776
1777                                 debug_print("Remembering message %d to update...\n", folder_cur_num);
1778                         } else
1779                                 exists_list = g_slist_prepend(exists_list, msginfo);
1780
1781                         /* Move to next folder and cache number */
1782                         cache_list_cur = cache_list_cur->next;
1783                         folder_list_cur = folder_list_cur->next;
1784
1785                         if (cache_list_cur != NULL)
1786                                 cache_cur_num = ((MsgInfo *)cache_list_cur->data)->msgnum;
1787                         else
1788                                 cache_cur_num = G_MAXINT;
1789
1790                         if (folder_list_cur != NULL)
1791                                 folder_cur_num = GPOINTER_TO_INT(folder_list_cur->data);
1792                         else
1793                                 folder_cur_num = G_MAXINT;
1794
1795                         continue;
1796                 }
1797         }
1798         
1799         for(cache_list_cur = cache_list; cache_list_cur != NULL; cache_list_cur = g_slist_next(cache_list_cur))
1800                 procmsg_msginfo_free((MsgInfo *) cache_list_cur->data);
1801
1802         g_slist_free(cache_list);
1803         g_slist_free(folder_list);
1804
1805         if (new_list != NULL) {
1806                 GSList *tmp_list = NULL;
1807                 newmsg_list = get_msginfos(item, new_list);
1808                 g_slist_free(new_list);
1809                 tmp_list = g_slist_concat(g_slist_copy(exists_list), g_slist_copy(newmsg_list));
1810                 syncronize_flags(item, tmp_list);
1811                 g_slist_free(tmp_list);
1812         } else {
1813                 syncronize_flags(item, exists_list);
1814         }
1815
1816         folder_item_update_freeze();
1817         if (newmsg_list != NULL) {
1818                 GSList *elem;
1819                 int total = g_slist_length(newmsg_list), cur = 0;
1820                 
1821                 if ((filtering == TRUE) &&
1822                     (item->stype == F_INBOX) &&
1823                     (item->folder->account != NULL) && 
1824                     (item->folder->account->filter_on_recv)) 
1825                         statusbar_print_all(_("Filtering messages...\n"));
1826                 
1827                 for (elem = newmsg_list; elem != NULL; elem = g_slist_next(elem)) {
1828                         MsgInfo *msginfo = (MsgInfo *) elem->data;
1829
1830                         statusbar_progress_all(cur++,total, 10);
1831
1832                         msgcache_add_msg(item->cache, msginfo);
1833                         if ((filtering == TRUE) &&
1834                             (item->stype == F_INBOX) &&
1835                             (item->folder->account != NULL) && 
1836                             (item->folder->account->filter_on_recv) &&
1837                             procmsg_msginfo_filter(msginfo))
1838                                 procmsg_msginfo_free(msginfo);
1839                         else
1840                                 exists_list = g_slist_prepend(exists_list, msginfo);
1841                 }
1842                 g_slist_free(newmsg_list);
1843
1844                 statusbar_progress_all(0,0,0);
1845                 statusbar_pop_all();
1846                 update_flags |= F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT;
1847         }
1848
1849         folder_item_set_batch(item, TRUE);
1850         for (elem = exists_list; elem != NULL; elem = g_slist_next(elem)) {
1851                 MsgInfo *msginfo;
1852
1853                 msginfo = elem->data;
1854                 if (MSG_IS_IGNORE_THREAD(msginfo->flags) && (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1855                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1856                 if (!MSG_IS_IGNORE_THREAD(msginfo->flags) && procmsg_msg_has_flagged_parent(msginfo, MSG_IGNORE_THREAD)) {
1857                         procmsg_msginfo_change_flags(msginfo, MSG_IGNORE_THREAD, 0, MSG_NEW | MSG_UNREAD, 0);
1858                 }
1859                 if ((folder_has_parent_of_type(item, F_OUTBOX) ||
1860                      folder_has_parent_of_type(item, F_QUEUE)  ||
1861                      folder_has_parent_of_type(item, F_DRAFT)  ||
1862                      folder_has_parent_of_type(item, F_TRASH)) &&
1863                     (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)))
1864                         procmsg_msginfo_unset_flags(msginfo, MSG_NEW | MSG_UNREAD, 0);
1865                 if (MSG_IS_NEW(msginfo->flags))
1866                         newcnt++;
1867                 if (MSG_IS_UNREAD(msginfo->flags))
1868                         unreadcnt++;
1869                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
1870                         unreadmarkedcnt++;
1871                 if (MSG_IS_MARKED(msginfo->flags))
1872                         markedcnt++;
1873
1874                 totalcnt++;
1875
1876                 procmsg_msginfo_free(msginfo);
1877         }
1878         folder_item_set_batch(item, FALSE);
1879         g_slist_free(exists_list);
1880
1881         item->new_msgs = newcnt;
1882         item->unread_msgs = unreadcnt;
1883         item->total_msgs = totalcnt;
1884         item->unreadmarked_msgs = unreadmarkedcnt;
1885         item->marked_msgs = markedcnt;
1886
1887         update_flags |= F_ITEM_UPDATE_MSGCNT;
1888
1889         folder_item_update(item, update_flags);
1890         folder_item_update_thaw();
1891
1892         return 0;
1893 }
1894
1895 gint folder_item_scan(FolderItem *item)
1896 {
1897         return folder_item_scan_full(item, TRUE);
1898 }
1899
1900 static gboolean folder_scan_all_items_func(GNode *node, gpointer data)
1901 {
1902         FolderItem *item = node->data;
1903
1904         folder_item_scan(item);
1905
1906         return FALSE;
1907 }
1908
1909 void folder_scan_all_items(Folder * folder)
1910 {
1911         g_node_traverse(folder->node, G_PRE_ORDER,
1912                         G_TRAVERSE_ALL, -1, folder_scan_all_items_func, NULL);
1913 }
1914
1915 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
1916                                           gpointer data)
1917 {
1918         folder_item_scan(FOLDER_ITEM(key));
1919 }
1920
1921 void folder_item_scan_foreach(GHashTable *table)
1922 {
1923         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
1924 }
1925
1926 void folder_count_total_cache_memusage(FolderItem *item, gpointer data)
1927 {
1928         gint *memusage = (gint *)data;
1929
1930         if (item->cache == NULL)
1931                 return;
1932         
1933         *memusage += msgcache_get_memory_usage(item->cache);
1934 }
1935
1936 gint folder_item_syncronize_flags(FolderItem *item)
1937 {
1938         MsgInfoList *msglist = NULL;
1939         GSList *cur;
1940         gint ret = 0;
1941         
1942         g_return_val_if_fail(item != NULL, -1);
1943         g_return_val_if_fail(item->folder != NULL, -1);
1944         g_return_val_if_fail(item->folder->klass != NULL, -1);
1945         g_return_val_if_fail(item->no_select == FALSE, -1);     
1946
1947         if (item->cache == NULL)
1948                 folder_item_read_cache(item);
1949         
1950         msglist = msgcache_get_msg_list(item->cache);
1951         
1952         ret = syncronize_flags(item, msglist);
1953
1954         for (cur = msglist; cur != NULL; cur = g_slist_next(cur))
1955                 procmsg_msginfo_free((MsgInfo *) cur->data);
1956         
1957         g_slist_free(msglist);
1958
1959         return ret;
1960 }
1961
1962 gint folder_cache_time_compare_func(gconstpointer a, gconstpointer b)
1963 {
1964         FolderItem *fa = (FolderItem *)a;
1965         FolderItem *fb = (FolderItem *)b;
1966         
1967         return (gint) (msgcache_get_last_access_time(fa->cache) - msgcache_get_last_access_time(fb->cache));
1968 }
1969
1970 void folder_find_expired_caches(FolderItem *item, gpointer data)
1971 {
1972         GSList **folder_item_list = (GSList **)data;
1973         gint difftime, expiretime;
1974         
1975         if (item->cache == NULL)
1976                 return;
1977
1978         if (item->opened > 0)
1979                 return;
1980
1981         difftime = (gint) (time(NULL) - msgcache_get_last_access_time(item->cache));
1982         expiretime = prefs_common.cache_min_keep_time * 60;
1983         debug_print("Cache unused time: %d (Expire time: %d)\n", difftime, expiretime);
1984         if (difftime > expiretime) {
1985                 *folder_item_list = g_slist_insert_sorted(*folder_item_list, item, folder_cache_time_compare_func);
1986         }
1987 }
1988
1989 void folder_item_free_cache(FolderItem *item)
1990 {
1991         g_return_if_fail(item != NULL);
1992         
1993         if (item->cache == NULL)
1994                 return;
1995         
1996         if (item->opened > 0)
1997                 return;
1998
1999         folder_item_write_cache(item);
2000         msgcache_destroy(item->cache);
2001         item->cache = NULL;
2002 }
2003
2004 void folder_clean_cache_memory_force(void)
2005 {
2006         int old_cache_max_mem_usage = prefs_common.cache_max_mem_usage;
2007         int old_cache_min_keep_time = prefs_common.cache_min_keep_time;
2008
2009         prefs_common.cache_max_mem_usage = 0;
2010         prefs_common.cache_min_keep_time = 0;
2011
2012         folder_clean_cache_memory();
2013
2014         prefs_common.cache_max_mem_usage = old_cache_max_mem_usage;
2015         prefs_common.cache_min_keep_time = old_cache_min_keep_time;
2016 }
2017
2018 void folder_clean_cache_memory(void)
2019 {
2020         gint memusage = 0;
2021
2022         folder_func_to_all_folders(folder_count_total_cache_memusage, &memusage);       
2023         debug_print("Total cache memory usage: %d\n", memusage);
2024         
2025         if (memusage > (prefs_common.cache_max_mem_usage * 1024)) {
2026                 GSList *folder_item_list = NULL, *listitem;
2027                 
2028                 debug_print("Trying to free cache memory\n");
2029
2030                 folder_func_to_all_folders(folder_find_expired_caches, &folder_item_list);      
2031                 listitem = folder_item_list;
2032                 while((listitem != NULL) && (memusage > (prefs_common.cache_max_mem_usage * 1024))) {
2033                         FolderItem *item = (FolderItem *)(listitem->data);
2034
2035                         debug_print("Freeing cache memory for %s\n", item->path ? item->path : item->name);
2036                         memusage -= msgcache_get_memory_usage(item->cache);
2037                         folder_item_free_cache(item);
2038                         listitem = listitem->next;
2039                 }
2040                 g_slist_free(folder_item_list);
2041         }
2042 }
2043
2044 void folder_item_read_cache(FolderItem *item)
2045 {
2046         gchar *cache_file, *mark_file;
2047         
2048         g_return_if_fail(item != NULL);
2049
2050         if (item->path != NULL) {
2051                 cache_file = folder_item_get_cache_file(item);
2052                 mark_file = folder_item_get_mark_file(item);
2053                 item->cache = msgcache_read_cache(item, cache_file);
2054                 if (!item->cache) {
2055                         MsgInfoList *list, *cur;
2056                         guint newcnt = 0, unreadcnt = 0;
2057                         guint markedcnt = 0, unreadmarkedcnt = 0;
2058                         MsgInfo *msginfo;
2059
2060                         item->cache = msgcache_new();
2061                         folder_item_scan_full(item, TRUE);
2062
2063                         msgcache_read_mark(item->cache, mark_file);
2064
2065                         list = msgcache_get_msg_list(item->cache);
2066                         for (cur = list; cur != NULL; cur = g_slist_next(cur)) {
2067                                 msginfo = cur->data;
2068
2069                                 if (MSG_IS_NEW(msginfo->flags))
2070                                         newcnt++;
2071                                 if (MSG_IS_UNREAD(msginfo->flags))
2072                                         unreadcnt++;
2073                                 if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2074                                         unreadmarkedcnt++;
2075                                 if (MSG_IS_MARKED(msginfo->flags))
2076                                         markedcnt++;
2077                         }
2078                         item->new_msgs = newcnt;
2079                         item->unread_msgs = unreadcnt;
2080                         item->unreadmarked_msgs = unreadmarkedcnt;
2081                         item->marked_msgs = markedcnt;
2082                         procmsg_msg_list_free(list);
2083                 } else
2084                         msgcache_read_mark(item->cache, mark_file);
2085
2086                 g_free(cache_file);
2087                 g_free(mark_file);
2088         } else {
2089                 item->cache = msgcache_new();
2090         }
2091
2092         folder_clean_cache_memory();
2093 }
2094
2095 void folder_item_write_cache(FolderItem *item)
2096 {
2097         gchar *cache_file, *mark_file;
2098         FolderItemPrefs *prefs;
2099         gint filemode = 0;
2100         gchar *id;
2101         
2102         if (!item || !item->path || !item->cache)
2103                 return;
2104
2105         id = folder_item_get_identifier(item);
2106         debug_print("Save cache for folder %s\n", id);
2107         g_free(id);
2108
2109         cache_file = folder_item_get_cache_file(item);
2110         mark_file = folder_item_get_mark_file(item);
2111         if (msgcache_write(cache_file, mark_file, item->cache) < 0) {
2112                 prefs = item->prefs;
2113                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
2114                         /* for cache file */
2115                         filemode = prefs->folder_chmod;
2116                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
2117                         if (filemode & S_IROTH) filemode |= S_IWOTH;
2118                         chmod(cache_file, filemode);
2119                 }
2120         }
2121
2122         g_free(cache_file);
2123         g_free(mark_file);
2124 }
2125
2126 MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)
2127 {
2128         Folder *folder;
2129         MsgInfo *msginfo = NULL;
2130         
2131         g_return_val_if_fail(item != NULL, NULL);
2132         g_return_val_if_fail(item->no_select == FALSE, NULL);   
2133         folder = item->folder;
2134         if (!item->cache)
2135                 folder_item_read_cache(item);
2136         
2137         if ((msginfo = msgcache_get_msg(item->cache, num)) != NULL)
2138                 return msginfo;
2139         
2140         msginfo = get_msginfo(item, num);
2141         if (msginfo != NULL) {
2142                 msgcache_add_msg(item->cache, msginfo);
2143                 return msginfo;
2144         }
2145         
2146         return NULL;
2147 }
2148
2149 MsgInfo *folder_item_get_msginfo_by_msgid(FolderItem *item, const gchar *msgid)
2150 {
2151         Folder *folder;
2152         MsgInfo *msginfo;
2153         
2154         g_return_val_if_fail(item != NULL, NULL);
2155         g_return_val_if_fail(msgid != NULL, NULL);
2156         g_return_val_if_fail(item->no_select == FALSE, FALSE);
2157         
2158         folder = item->folder;
2159         if (!item->cache)
2160                 folder_item_read_cache(item);
2161         
2162         if ((msginfo = msgcache_get_msg_by_id(item->cache, msgid)) != NULL)
2163                 return msginfo;
2164
2165         return NULL;
2166 }
2167
2168 GSList *folder_item_get_msg_list(FolderItem *item)
2169 {
2170         g_return_val_if_fail(item != NULL, NULL);
2171         g_return_val_if_fail(item->no_select == FALSE, FALSE);
2172         
2173         if (item->cache == 0)
2174                 folder_item_read_cache(item);
2175
2176         g_return_val_if_fail(item->cache != NULL, NULL);
2177         
2178         return msgcache_get_msg_list(item->cache);
2179 }
2180
2181 void msginfo_set_mime_flags(GNode *node, gpointer data)
2182 {
2183         MsgInfo *msginfo = data;
2184         MimeInfo *mimeinfo = node->data;
2185         
2186         if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT
2187          && (!mimeinfo->subtype ||  strcmp(mimeinfo->subtype, "pgp-signature"))) {
2188                 procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2189         } else if (mimeinfo->disposition == DISPOSITIONTYPE_UNKNOWN && 
2190                  mimeinfo->type != MIMETYPE_TEXT &&
2191                  mimeinfo->type != MIMETYPE_MULTIPART) {
2192                 if (!mimeinfo->subtype 
2193                 ||  strcmp(mimeinfo->subtype, "pgp-signature"))
2194                         procmsg_msginfo_set_flags(msginfo, 0, MSG_HAS_ATTACHMENT);
2195         }
2196
2197         /* don't descend below top level message for signed and encrypted info */
2198         if (mimeinfo->type == MIMETYPE_MESSAGE)
2199                 return;
2200
2201         if (privacy_mimeinfo_is_signed(mimeinfo)) {
2202                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SIGNED);
2203         }
2204
2205         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
2206                 procmsg_msginfo_set_flags(msginfo, 0, MSG_ENCRYPTED);
2207         } else {
2208                 /* searching inside encrypted parts doesn't really make sense */
2209                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2210         }
2211 }
2212
2213 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
2214 {
2215         Folder *folder;
2216         gchar *msgfile;
2217         MsgInfo *msginfo;
2218
2219         g_return_val_if_fail(item != NULL, NULL);
2220
2221         folder = item->folder;
2222
2223         g_return_val_if_fail(folder->klass->fetch_msg != NULL, NULL);
2224         g_return_val_if_fail(item->no_select == FALSE, NULL);
2225
2226         msgfile = folder->klass->fetch_msg(folder, item, num);
2227
2228         if (msgfile != NULL) {
2229                 msginfo = folder_item_get_msginfo(item, num);
2230                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2231                         MimeInfo *mimeinfo;
2232
2233                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) && 
2234                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2235                                 mimeinfo = procmime_scan_file(msgfile);
2236                         else
2237                                 mimeinfo = procmime_scan_queue_file(msgfile);
2238                         /* check for attachments */
2239                         if (mimeinfo != NULL) { 
2240                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2241                                 procmime_mimeinfo_free_all(mimeinfo);
2242
2243                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2244                         }
2245                 }
2246         }
2247
2248         return msgfile;
2249 }
2250
2251 gchar *folder_item_fetch_msg_full(FolderItem *item, gint num, gboolean headers,
2252                                   gboolean body)
2253 {
2254         Folder *folder;
2255         gchar *msgfile;
2256         MsgInfo *msginfo;
2257
2258         g_return_val_if_fail(item != NULL, NULL);
2259         g_return_val_if_fail(item->no_select == FALSE, NULL);
2260         
2261         folder = item->folder;
2262
2263         if (folder->klass->fetch_msg_full == NULL)
2264                 return folder_item_fetch_msg(item, num);
2265
2266         msgfile = folder->klass->fetch_msg_full(folder, item, num, 
2267                                                 headers, body);
2268
2269         if (msgfile != NULL) {
2270                 msginfo = folder_item_get_msginfo(item, num);
2271                 if ((msginfo != NULL) && !MSG_IS_SCANNED(msginfo->flags)) {
2272                         MimeInfo *mimeinfo;
2273
2274                         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
2275                             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
2276                                 mimeinfo = procmime_scan_file(msgfile);
2277                         else
2278                                 mimeinfo = procmime_scan_queue_file(msgfile);
2279                         /* check for attachments */
2280                         if (mimeinfo != NULL) { 
2281                                 g_node_children_foreach(mimeinfo->node, G_TRAVERSE_ALL, msginfo_set_mime_flags, msginfo);
2282                                 procmime_mimeinfo_free_all(mimeinfo);
2283
2284                                 procmsg_msginfo_set_flags(msginfo, 0, MSG_SCANNED);
2285                         }
2286                 }
2287         }
2288
2289         return msgfile;
2290 }
2291
2292
2293 gint folder_item_fetch_all_msg(FolderItem *item)
2294 {
2295         Folder *folder;
2296         GSList *mlist;
2297         GSList *cur;
2298         gint num = 0;
2299         gint ret = 0;
2300         gint total = 0;
2301
2302         g_return_val_if_fail(item != NULL, -1);
2303         g_return_val_if_fail(item->no_select == FALSE, -1);
2304
2305         debug_print("fetching all messages in %s ...\n", item->path);
2306         statusbar_print_all(_("Fetching all messages in %s ...\n"), item->path);
2307
2308         folder = item->folder;
2309
2310         if (folder->ui_func)
2311                 folder->ui_func(folder, item, folder->ui_func_data ?
2312                                 folder->ui_func_data : GINT_TO_POINTER(num));
2313
2314         mlist = folder_item_get_msg_list(item);
2315
2316         total = g_slist_length(mlist);
2317
2318         for (cur = mlist; cur != NULL; cur = cur->next) {
2319                 MsgInfo *msginfo = (MsgInfo *)cur->data;
2320                 gchar *msg;
2321
2322                 statusbar_progress_all(num++,total, 10);
2323
2324                 if (folder->ui_func)
2325                         folder->ui_func(folder, item,
2326                                         folder->ui_func_data ?
2327                                         folder->ui_func_data :
2328                                         GINT_TO_POINTER(num));
2329
2330                 msg = folder_item_fetch_msg(item, msginfo->msgnum);
2331                 if (!msg) {
2332                         g_warning("Can't fetch message %d. Aborting.\n",
2333                                   msginfo->msgnum);
2334                         ret = -1;
2335                         break;
2336                 }
2337                 g_free(msg);
2338         }
2339         
2340         statusbar_progress_all(0,0,0);
2341         statusbar_pop_all();
2342         procmsg_msg_list_free(mlist);
2343
2344         return ret;
2345 }
2346
2347 static gint folder_item_get_msg_num_by_file(FolderItem *dest, const gchar *file)
2348 {
2349         static HeaderEntry hentry[] = {{"Message-ID:",  NULL, TRUE},
2350                                        {NULL,           NULL, FALSE}};
2351         FILE *fp;
2352         MsgInfo *msginfo;
2353         gint msgnum = 0;
2354         gchar buf[BUFFSIZE];
2355
2356         if ((fp = g_fopen(file, "rb")) == NULL)
2357                 return 0;
2358
2359         if ((folder_has_parent_of_type(dest, F_QUEUE)) || 
2360             (folder_has_parent_of_type(dest, F_DRAFT)))
2361                 while (fgets(buf, sizeof(buf), fp) != NULL)
2362                         if (buf[0] == '\r' || buf[0] == '\n') break;
2363
2364         procheader_get_header_fields(fp, hentry);
2365         if (hentry[0].body) {
2366                 extract_parenthesis(hentry[0].body, '<', '>');
2367                 remove_space(hentry[0].body);
2368                 if ((msginfo = msgcache_get_msg_by_id(dest->cache, hentry[0].body)) != NULL) {
2369                         msgnum = msginfo->msgnum;
2370                         procmsg_msginfo_free(msginfo);
2371
2372                         debug_print("found message as uid %d\n", msgnum);
2373                 }
2374         }
2375         
2376         g_free(hentry[0].body);
2377         hentry[0].body = NULL;
2378         fclose(fp);
2379
2380         return msgnum;
2381 }
2382
2383 static void copy_msginfo_flags(MsgInfo *source, MsgInfo *dest)
2384 {
2385         MsgPermFlags perm_flags = 0;
2386         MsgTmpFlags tmp_flags = 0;
2387
2388         /* create new flags */
2389         if (source != NULL) {
2390                 /* copy original flags */
2391                 perm_flags = source->flags.perm_flags;
2392                 tmp_flags = source->flags.tmp_flags;
2393         } else {
2394                 perm_flags = dest->flags.perm_flags;
2395                 tmp_flags = dest->flags.tmp_flags;
2396         }
2397
2398         /* remove new, unread and deleted in special folders */
2399         if (folder_has_parent_of_type(dest->folder, F_OUTBOX) || 
2400             folder_has_parent_of_type(dest->folder, F_QUEUE) || 
2401             folder_has_parent_of_type(dest->folder, F_DRAFT) || 
2402             folder_has_parent_of_type(dest->folder, F_TRASH))
2403                 perm_flags &= ~(MSG_NEW | MSG_UNREAD | MSG_DELETED);
2404
2405         /* set ignore flag of ignored parent exists */
2406         if (procmsg_msg_has_flagged_parent(dest, MSG_IGNORE_THREAD))
2407                 perm_flags |= MSG_IGNORE_THREAD;
2408
2409         /* Unset tmp flags that should not be copied */
2410         tmp_flags &= ~(MSG_MOVE | MSG_COPY);
2411
2412         /* unset flags that are set but should not */
2413         /* and set new flags */
2414         procmsg_msginfo_change_flags(dest,
2415                                   ~dest->flags.perm_flags & perm_flags,
2416                                   ~dest->flags.tmp_flags  & tmp_flags,
2417                                    dest->flags.perm_flags & ~perm_flags,
2418                                    dest->flags.tmp_flags  & ~tmp_flags);
2419 }
2420
2421 static void add_msginfo_to_cache(FolderItem *item, MsgInfo *newmsginfo, MsgInfo *flagsource)
2422 {
2423         /* update folder stats */
2424         if (MSG_IS_NEW(newmsginfo->flags))
2425                 item->new_msgs++;
2426         if (MSG_IS_UNREAD(newmsginfo->flags))
2427                 item->unread_msgs++;
2428         if (MSG_IS_UNREAD(newmsginfo->flags) && procmsg_msg_has_marked_parent(newmsginfo))
2429                 item->unreadmarked_msgs++;
2430         if (MSG_IS_MARKED(newmsginfo->flags))
2431                 item->marked_msgs++;
2432         item->total_msgs++;
2433
2434         folder_item_update_freeze();
2435         msgcache_add_msg(item->cache, newmsginfo);
2436         copy_msginfo_flags(flagsource, newmsginfo);
2437         folder_item_update_with_msg(item,  F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_ADDMSG, newmsginfo);
2438         folder_item_update_thaw();
2439 }
2440
2441 static void remove_msginfo_from_cache(FolderItem *item, MsgInfo *msginfo)
2442 {
2443         MsgInfoUpdate msginfo_update;
2444
2445         if (!item->cache)
2446                 folder_item_read_cache(item);
2447
2448         if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2449                 msginfo->folder->new_msgs--;
2450         if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
2451                 msginfo->folder->unread_msgs--;
2452         if (MSG_IS_UNREAD(msginfo->flags) && procmsg_msg_has_marked_parent(msginfo))
2453                 msginfo->folder->unreadmarked_msgs--;
2454         if (MSG_IS_MARKED(msginfo->flags))
2455                 item->marked_msgs--;
2456
2457         msginfo->folder->total_msgs--;
2458
2459         msginfo_update.msginfo = msginfo;
2460         msginfo_update.flags = MSGINFO_UPDATE_DELETED;
2461         hooks_invoke(MSGINFO_UPDATE_HOOKLIST, &msginfo_update);
2462
2463         msgcache_remove_msg(item->cache, msginfo->msgnum);
2464         folder_item_update_with_msg(msginfo->folder, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_REMOVEMSG, msginfo);
2465 }
2466
2467 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
2468                          MsgFlags *flags, gboolean remove_source)
2469 {
2470         GSList file_list;
2471         MsgFileInfo fileinfo;
2472
2473         g_return_val_if_fail(dest != NULL, -1);
2474         g_return_val_if_fail(file != NULL, -1);
2475  
2476         fileinfo.msginfo = NULL;
2477         fileinfo.file = (gchar *)file;
2478         fileinfo.flags = flags;
2479         file_list.data = &fileinfo;
2480         file_list.next = NULL;
2481
2482         return folder_item_add_msgs(dest, &file_list, remove_source);
2483 }
2484
2485 gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,
2486                           gboolean remove_source)
2487 {
2488         Folder *folder;
2489         gint ret, num, lastnum = -1;
2490         GSList *file_cur;
2491         GRelation *relation;
2492         MsgFileInfo *fileinfo = NULL;
2493         gboolean folderscan = FALSE;
2494
2495         g_return_val_if_fail(dest != NULL, -1);
2496         g_return_val_if_fail(file_list != NULL, -1);
2497         g_return_val_if_fail(dest->folder != NULL, -1);
2498         g_return_val_if_fail(dest->no_select == FALSE, -1);
2499
2500         folder = dest->folder;
2501
2502         relation = g_relation_new(2);
2503         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2504
2505         if (folder->klass->add_msgs != NULL) {
2506                 ret = folder->klass->add_msgs(folder, dest, file_list, relation);
2507                 if (ret < 0) {
2508                         g_relation_destroy(relation);
2509                         return ret;
2510                 }
2511         } else {
2512                 for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2513                         fileinfo = (MsgFileInfo *) file_cur->data;
2514
2515                         ret = folder->klass->add_msg(folder, dest, fileinfo->file, fileinfo->flags);
2516                         if (ret < 0) {
2517                                 g_relation_destroy(relation);
2518                                 return ret;
2519                         }
2520                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(ret));
2521                 }
2522         }
2523
2524         for (file_cur = file_list; file_cur != NULL; file_cur = g_slist_next(file_cur)) {
2525                 GTuples *tuples;
2526
2527                 fileinfo = (MsgFileInfo *) file_cur->data;
2528                 tuples = g_relation_select(relation, fileinfo, 0);
2529                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2530                 g_tuples_destroy(tuples);
2531
2532                 if (num >= 0) {
2533                         MsgInfo *newmsginfo;
2534
2535                         if (num == 0) {
2536                                 if (!folderscan) {
2537                                         folder_item_scan_full(dest, FALSE);
2538                                         folderscan = TRUE;
2539                                 }
2540                                 num = folder_item_get_msg_num_by_file(dest, fileinfo->file);
2541                         }
2542
2543                         if (num > lastnum)
2544                                 lastnum = num;
2545
2546                         if (num >= 0 && remove_source) {
2547                                 if (g_unlink(fileinfo->file) < 0)
2548                                         FILE_OP_ERROR(fileinfo->file, "unlink");
2549                         }
2550
2551                         if (num == 0)
2552                                 continue;
2553
2554                         if (!folderscan && 
2555                             ((newmsginfo = get_msginfo(dest, num)) != NULL)) {
2556                                 add_msginfo_to_cache(dest, newmsginfo, NULL);
2557                                 procmsg_msginfo_free(newmsginfo);
2558                         } else if ((newmsginfo = msgcache_get_msg(dest->cache, num)) != NULL) {
2559                                 /* TODO: set default flags */
2560                                 procmsg_msginfo_free(newmsginfo);
2561                         }
2562                 }
2563         }
2564
2565         g_relation_destroy(relation);
2566
2567         return lastnum;
2568 }
2569                 
2570 FolderItem *folder_item_move_recursive(FolderItem *src, FolderItem *dest) 
2571 {
2572         GSList *mlist;
2573         FolderItem *new_item;
2574         FolderItem *next_item;
2575         GNode *srcnode;
2576         gchar *old_id, *new_id;
2577
2578         /* move messages */
2579         debug_print("Moving %s to %s\n", src->path, dest->path);
2580         new_item = folder_create_folder(dest, src->name);
2581         if (new_item == NULL) {
2582                 printf("Can't create folder\n");
2583                 return NULL;
2584         }
2585         
2586         if (new_item->folder == NULL)
2587                 new_item->folder = dest->folder;
2588
2589         /* move messages */
2590         log_message(_("Moving %s to %s...\n"), 
2591                         src->name, new_item->path);
2592
2593         mlist = folder_item_get_msg_list(src);
2594         
2595         if (mlist != NULL) {
2596                 folder_item_move_msgs(new_item, mlist);
2597                 procmsg_msg_list_free(mlist);
2598         }
2599         
2600         /*copy prefs*/
2601         folder_item_prefs_copy_prefs(src, new_item);
2602         new_item->collapsed = src->collapsed;
2603         new_item->thread_collapsed = src->thread_collapsed;
2604         new_item->threaded  = src->threaded;
2605         new_item->ret_rcpt  = src->ret_rcpt;
2606         new_item->hide_read_msgs = src->hide_read_msgs;
2607         new_item->sort_key  = src->sort_key;
2608         new_item->sort_type = src->sort_type;
2609
2610         prefs_matcher_write_config();
2611         
2612         /* recurse */
2613         srcnode = src->folder->node;    
2614         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, src);
2615         srcnode = srcnode->children;
2616         while (srcnode != NULL) {
2617                 if (srcnode && srcnode->data) {
2618                         next_item = (FolderItem*) srcnode->data;
2619                         srcnode = srcnode->next;
2620                         if (folder_item_move_recursive(next_item, new_item) == NULL) {
2621                                 return NULL;
2622                         }
2623                 }
2624         }
2625         old_id = folder_item_get_identifier(src);
2626         new_id = folder_item_get_identifier(new_item);
2627         debug_print("updating rules : %s => %s\n", old_id, new_id);
2628
2629         /* if src supports removing, otherwise only copy folder */
2630         if (src->folder->klass->remove_folder != NULL)  
2631                 src->folder->klass->remove_folder(src->folder, src);
2632         folder_write_list();
2633
2634         if (old_id != NULL && new_id != NULL)
2635                 prefs_filtering_rename_path(old_id, new_id);
2636         g_free(old_id);
2637         g_free(new_id);
2638         
2639         return new_item;
2640 }
2641
2642 gint folder_item_move_to(FolderItem *src, FolderItem *dest, FolderItem **new_item)
2643 {
2644         FolderItem *tmp = folder_item_parent(dest);
2645         gchar * src_identifier, * dst_identifier;
2646         gchar * phys_srcpath, * phys_dstpath;
2647         
2648         while (tmp) {
2649                 if (tmp == src) {
2650                         return F_MOVE_FAILED_DEST_IS_CHILD;
2651                 }
2652                 tmp = folder_item_parent(tmp);
2653         }
2654         
2655         tmp = folder_item_parent(src);
2656         
2657         src_identifier = folder_item_get_identifier(src);
2658         dst_identifier = folder_item_get_identifier(dest);
2659         
2660         if(dst_identifier == NULL && dest->folder && folder_item_parent(dest) == NULL) {
2661                 /* dest can be a root folder */
2662                 dst_identifier = folder_get_identifier(dest->folder);
2663         }
2664         if (src_identifier == NULL || dst_identifier == NULL) {
2665                 debug_print("Can't get identifiers\n");
2666                 return F_MOVE_FAILED;
2667         }
2668
2669         if (src->folder != dest->folder) {
2670                 return F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX;
2671         }
2672
2673         phys_srcpath = folder_item_get_path(src);
2674         phys_dstpath = g_strconcat(folder_item_get_path(dest),
2675                        G_DIR_SEPARATOR_S,
2676                        g_path_get_basename(phys_srcpath),
2677                        NULL);
2678
2679         if (folder_item_parent(src) == dest || src == dest) {
2680                 g_free(src_identifier);
2681                 g_free(dst_identifier);
2682                 g_free(phys_srcpath);
2683                 g_free(phys_dstpath);
2684                 return F_MOVE_FAILED_DEST_IS_PARENT;
2685         }
2686         debug_print("moving \"%s\" to \"%s\"\n", phys_srcpath, phys_dstpath);
2687         if ((tmp = folder_item_move_recursive(src, dest)) == NULL) {
2688                 return F_MOVE_FAILED;
2689         }
2690         
2691         g_free(src_identifier);
2692         g_free(dst_identifier);
2693         g_free(phys_srcpath);
2694         g_free(phys_dstpath);
2695
2696         *new_item = tmp;
2697
2698         return F_MOVE_OK;
2699 }
2700
2701 /**
2702  * Copy a list of message to a new folder and remove
2703  * source messages if wanted
2704  */
2705 static gint do_copy_msgs(FolderItem *dest, GSList *msglist, gboolean remove_source)
2706 {
2707         Folder *folder;
2708         GSList *l;
2709         gint num, lastnum = -1;
2710         gboolean folderscan = FALSE;
2711         GRelation *relation;
2712         GSList *not_moved = NULL;
2713
2714         g_return_val_if_fail(dest != NULL, -1);
2715         g_return_val_if_fail(msglist != NULL, -1);
2716
2717         folder = dest->folder;
2718
2719         g_return_val_if_fail(folder->klass->copy_msg != NULL, -1);
2720         g_return_val_if_fail(dest->no_select == FALSE, -1);
2721
2722         relation = g_relation_new(2);
2723         g_relation_index(relation, 0, g_direct_hash, g_direct_equal);
2724         g_relation_index(relation, 1, g_direct_hash, g_direct_equal);
2725
2726         for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
2727                 MsgInfo * msginfo = (MsgInfo *) l->data;
2728
2729                 if (msginfo->planned_download != 0) {
2730                         int old_planned = msginfo->planned_download;
2731                         partial_unmark(msginfo);
2732                         /* little hack to reenable after */
2733                         msginfo->planned_download = old_planned;
2734                 }
2735         }
2736
2737         /* 
2738          * Copy messages to destination folder and 
2739          * store new message numbers in newmsgnums
2740          */
2741         if (folder->klass->copy_msgs != NULL) {
2742                 if (folder->klass->copy_msgs(folder, dest, msglist, relation) < 0) {
2743                         g_relation_destroy(relation);
2744                         return -1;
2745                 }
2746         } else {
2747                 for (l = msglist ; l != NULL ; l = g_slist_next(l)) {
2748                         MsgInfo * msginfo = (MsgInfo *) l->data;
2749
2750                         num = folder->klass->copy_msg(folder, dest, msginfo);
2751                         if (num > 0)
2752                                 g_relation_insert(relation, msginfo, GINT_TO_POINTER(num));
2753                         else
2754                                 not_moved = g_slist_prepend(not_moved, msginfo);
2755                 }
2756         }
2757
2758         if (remove_source) {
2759                 MsgInfo *msginfo = (MsgInfo *) msglist->data;
2760                 FolderItem *item = msginfo->folder;
2761                 /*
2762                  * Remove source messages from their folders if
2763                  * copying was successfull and update folder
2764                  * message counts
2765                  */
2766                 if (item->folder->klass->remove_msgs) {
2767                         item->folder->klass->remove_msgs(item->folder,
2768                                                                 msginfo->folder,
2769                                                                 msglist,
2770                                                                 relation);
2771                 }
2772                 for (l = msglist; l != NULL; l = g_slist_next(l)) {
2773                         GTuples *tuples;
2774                         msginfo = (MsgInfo *) l->data;
2775                         item = msginfo->folder;
2776
2777                         tuples = g_relation_select(relation, msginfo, 0);
2778                         num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2779                         g_tuples_destroy(tuples);
2780
2781                         if (g_slist_find(not_moved, msginfo))
2782                                 continue;
2783
2784                         if ((num >= 0) && (item->folder->klass->remove_msg != NULL)) {
2785                                 if (!item->folder->klass->remove_msgs)
2786                                         item->folder->klass->remove_msg(item->folder,
2787                                                                 msginfo->folder,
2788                                                                 msginfo->msgnum);
2789                                 remove_msginfo_from_cache(item, msginfo);
2790                         }
2791                 }
2792         }
2793
2794         /* Read cache for dest folder */
2795         if (!dest->cache) folder_item_read_cache(dest);
2796
2797         /* 
2798          * Fetch new MsgInfos for new messages in dest folder,
2799          * add them to the msgcache and update folder message counts
2800          */
2801         if (g_relation_count(relation, GINT_TO_POINTER(0), 1) > 0) {
2802                 folder_item_scan_full(dest, FALSE);
2803                 folderscan = TRUE;
2804         }
2805
2806         for (l = msglist; l != NULL; l = g_slist_next(l)) {
2807                 MsgInfo *msginfo = (MsgInfo *) l->data;
2808                 GTuples *tuples;
2809
2810                 tuples = g_relation_select(relation, msginfo, 0);
2811                 num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
2812                 g_tuples_destroy(tuples);
2813
2814                 if (num >= 0) {
2815                         MsgInfo *newmsginfo = NULL;
2816
2817                         if (folderscan) {
2818                                 if (msginfo->msgid != NULL) {
2819                                         newmsginfo = folder_item_get_msginfo_by_msgid(dest, msginfo->msgid);
2820                                         if (newmsginfo != NULL) {
2821                                                 copy_msginfo_flags(msginfo, newmsginfo);
2822                                                 num = newmsginfo->msgnum;
2823                                         }
2824                                 }
2825                         } else {
2826                                 newmsginfo = get_msginfo(dest, num);
2827                                 if (newmsginfo != NULL) {
2828                                         add_msginfo_to_cache(dest, newmsginfo, msginfo);
2829                                 }
2830                         }
2831
2832                         if (msginfo->planned_download 
2833                             == POP3_PARTIAL_DLOAD_DELE) {
2834                                 partial_mark_for_delete(newmsginfo);
2835                         }
2836                         if (msginfo->planned_download 
2837                             == POP3_PARTIAL_DLOAD_DLOAD) {
2838                                 partial_mark_for_download(newmsginfo);
2839                         }
2840                         procmsg_msginfo_free(newmsginfo);
2841
2842
2843                         if (num > lastnum)
2844                                 lastnum = num;
2845                 }
2846         }
2847
2848         g_relation_destroy(relation);
2849         if (not_moved != NULL) {
2850                 g_slist_free(not_moved);
2851                 return -1;
2852         } else
2853                 return lastnum;
2854 }
2855
2856 /**
2857  * Move a message to a new folder.
2858  *
2859  * \param dest Destination folder
2860  * \param msginfo The message
2861  */
2862 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
2863 {
2864         GSList list;
2865
2866         g_return_val_if_fail(dest != NULL, -1);
2867         g_return_val_if_fail(msginfo != NULL, -1);
2868
2869         list.data = msginfo;
2870         list.next = NULL;
2871
2872         return do_copy_msgs(dest, &list, TRUE);
2873 }
2874
2875 /**
2876  * Move a list of messages to a new folder.
2877  *
2878  * \param dest Destination folder
2879  * \param msglist List of messages
2880  */
2881 gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)
2882 {
2883         gint result = -1;
2884         g_return_val_if_fail(dest != NULL, -1);
2885         g_return_val_if_fail(msglist != NULL, -1);
2886         inc_lock();
2887         result = do_copy_msgs(dest, msglist, TRUE);
2888         inc_unlock();
2889         return result;
2890 }
2891
2892 /**
2893  * Copy a message to a new folder.
2894  *
2895  * \param dest Destination folder
2896  * \param msginfo The message
2897  */
2898 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
2899 {
2900         GSList list;
2901
2902         g_return_val_if_fail(dest != NULL, -1);
2903         g_return_val_if_fail(msginfo != NULL, -1);
2904     
2905         list.data = msginfo;
2906         list.next = NULL;
2907
2908         return do_copy_msgs(dest, &list, FALSE);
2909 }
2910
2911 /**
2912  * Copy a list of messages to a new folder.
2913  *
2914  * \param dest Destination folder
2915  * \param msglist List of messages
2916  */
2917 gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)
2918 {
2919         gint result;
2920         g_return_val_if_fail(dest != NULL, -1);
2921         g_return_val_if_fail(msglist != NULL, -1);
2922
2923         inc_lock();
2924         result = do_copy_msgs(dest, msglist, FALSE);
2925         inc_unlock();
2926         
2927         return result;
2928 }
2929
2930 gint folder_item_remove_msg(FolderItem *item, gint num)
2931 {
2932         Folder *folder;
2933         gint ret;
2934         MsgInfo *msginfo;
2935
2936         g_return_val_if_fail(item != NULL, -1);
2937         folder = item->folder;
2938         g_return_val_if_fail(folder->klass->remove_msg != NULL, -1);
2939         g_return_val_if_fail(item->no_select == FALSE, -1);
2940
2941         if (!item->cache) folder_item_read_cache(item);
2942
2943         ret = folder->klass->remove_msg(folder, item, num);
2944
2945         msginfo = msgcache_get_msg(item->cache, num);
2946         if (msginfo != NULL) {
2947                 remove_msginfo_from_cache(item, msginfo);
2948                 procmsg_msginfo_free(msginfo);
2949         }
2950
2951         return ret;
2952 }
2953
2954 gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)
2955 {
2956         Folder *folder;
2957         gint ret = 0;
2958
2959         g_return_val_if_fail(item != NULL, -1);
2960         folder = item->folder;
2961         g_return_val_if_fail(folder != NULL, -1);
2962         g_return_val_if_fail(item->no_select == FALSE, -1);
2963         inc_lock();
2964         if (!item->cache) folder_item_read_cache(item);
2965
2966         folder_item_update_freeze();
2967         if (item->folder->klass->remove_msgs) {
2968                 ret = item->folder->klass->remove_msgs(item->folder,
2969                                                         item,
2970                                                         msglist,
2971                                                         NULL);
2972         }
2973         while (ret == 0 && msglist != NULL) {
2974                 MsgInfo *msginfo = (MsgInfo *)msglist->data;
2975                 if (MSG_IS_LOCKED(msginfo->flags)) {
2976                         msglist = msglist->next;
2977                         continue;
2978                 }
2979                 if (!item->folder->klass->remove_msgs)
2980                         ret = folder_item_remove_msg(item, msginfo->msgnum);
2981                 if (ret != 0) break;
2982                 msgcache_remove_msg(item->cache, msginfo->msgnum);
2983                 msglist = msglist->next;
2984         }
2985         folder_item_scan_full(item, FALSE);
2986         folder_item_update_thaw();
2987         inc_unlock();
2988         return ret;
2989 }
2990
2991 gint folder_item_remove_all_msg(FolderItem *item)
2992 {
2993         Folder *folder;
2994         gint result;
2995
2996         g_return_val_if_fail(item != NULL, -1);
2997         g_return_val_if_fail(item->no_select == FALSE, -1);
2998
2999         folder = item->folder;
3000
3001         inc_lock();
3002         if (folder->klass->remove_all_msg != NULL) {
3003                 result = folder->klass->remove_all_msg(folder, item);
3004
3005                 if (result == 0) {
3006                         folder_item_free_cache(item);
3007                         item->cache = msgcache_new();
3008                 }
3009         } else {
3010                 MsgInfoList *msglist;
3011
3012                 msglist = folder_item_get_msg_list(item);
3013                 result = folder_item_remove_msgs(item, msglist);
3014                 procmsg_msg_list_free(msglist);
3015         }
3016
3017         if (result == 0) {
3018                 item->new_msgs = 0;
3019                 item->unread_msgs = 0;
3020                 item->unreadmarked_msgs = 0;
3021                 item->marked_msgs = 0;
3022                 item->total_msgs = 0;
3023                 folder_item_update(item, F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_CONTENT);
3024         }
3025
3026         inc_unlock();
3027         return result;
3028 }
3029
3030 void folder_item_change_msg_flags(FolderItem *item, MsgInfo *msginfo, MsgPermFlags newflags)
3031 {
3032         g_return_if_fail(item != NULL);
3033         g_return_if_fail(msginfo != NULL);
3034         g_return_if_fail(item->no_select == FALSE);
3035         
3036         if (item->folder->klass->change_flags != NULL) {
3037                 item->folder->klass->change_flags(item->folder, item, msginfo, newflags);
3038         } else {
3039                 msginfo->flags.perm_flags = newflags;
3040         }
3041 }
3042
3043 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
3044 {
3045         Folder *folder;
3046
3047         g_return_val_if_fail(item != NULL, FALSE);
3048         g_return_val_if_fail(item->no_select == FALSE, FALSE);
3049
3050         folder = item->folder;
3051
3052         g_return_val_if_fail(folder->klass->is_msg_changed != NULL, -1);
3053
3054         return folder->klass->is_msg_changed(folder, item, msginfo);
3055 }
3056
3057 gchar *folder_item_get_cache_file(FolderItem *item)
3058 {
3059         gchar *path;
3060         gchar *file;
3061
3062         g_return_val_if_fail(item != NULL, NULL);
3063         g_return_val_if_fail(item->path != NULL, NULL);
3064
3065         path = folder_item_get_path(item);
3066         g_return_val_if_fail(path != NULL, NULL);
3067         if (!is_dir_exist(path))
3068                 make_dir_hier(path);
3069         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
3070         g_free(path);
3071
3072         return file;
3073 }
3074
3075 gchar *folder_item_get_mark_file(FolderItem *item)
3076 {
3077         gchar *path;
3078         gchar *file;
3079
3080         g_return_val_if_fail(item != NULL, NULL);
3081         g_return_val_if_fail(item->path != NULL, NULL);
3082
3083         path = folder_item_get_path(item);
3084         g_return_val_if_fail(path != NULL, NULL);
3085         if (!is_dir_exist(path))
3086                 make_dir_hier(path);
3087         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
3088         g_free(path);
3089
3090         return file;
3091 }
3092
3093 static gpointer xml_to_folder_item(gpointer nodedata, gpointer data)
3094 {
3095         XMLNode *xmlnode = (XMLNode *) nodedata;
3096         Folder *folder = (Folder *) data;
3097         FolderItem *item;
3098
3099         g_return_val_if_fail(xmlnode != NULL, NULL);
3100         g_return_val_if_fail(folder != NULL, NULL);
3101
3102         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
3103                 g_warning("tag name != \"folderitem\"\n");
3104                 return NULL;
3105         }
3106
3107         item = folder_item_new(folder, "", "");
3108         if (folder->klass->item_set_xml != NULL)
3109                 folder->klass->item_set_xml(folder, item, xmlnode->tag);
3110         else
3111                 folder_item_set_xml(folder, item, xmlnode->tag);
3112
3113         item->folder = folder;
3114
3115         switch (item->stype) {
3116         case F_INBOX:  folder->inbox  = item; break;
3117         case F_OUTBOX: folder->outbox = item; break;
3118         case F_DRAFT:  folder->draft  = item; break;
3119         case F_QUEUE:  folder->queue  = item; break;
3120         case F_TRASH:  folder->trash  = item; break;
3121         default:       break;
3122         }
3123         folder_item_prefs_read_config(item);
3124
3125         return item;
3126 }
3127
3128 static gboolean folder_item_set_node(GNode *node, gpointer data)
3129 {
3130         FolderItem *item = (FolderItem *) node->data;
3131         item->node = node;
3132
3133         return FALSE;
3134 }
3135
3136 static Folder *folder_get_from_xml(GNode *node)
3137 {
3138         Folder *folder;
3139         XMLNode *xmlnode;
3140         GList *list;
3141         FolderClass *klass = NULL;
3142         GNode *cur;
3143
3144         g_return_val_if_fail(node->data != NULL, NULL);
3145
3146         xmlnode = node->data;
3147         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
3148                 g_warning("tag name != \"folder\"\n");
3149                 return NULL;
3150         }
3151         list = xmlnode->tag->attr;
3152         for (; list != NULL; list = list->next) {
3153                 XMLAttr *attr = list->data;
3154
3155                 if (!attr || !attr->name || !attr->value) continue;
3156                 if (!strcmp(attr->name, "type"))
3157                         klass = folder_get_class_from_string(attr->value);
3158         }
3159         if (klass == NULL)
3160                 return NULL;
3161
3162         folder = folder_new(klass, "", "");
3163         g_return_val_if_fail(folder != NULL, NULL);
3164
3165         if (klass->set_xml)
3166                 klass->set_xml(folder, xmlnode->tag);
3167         else
3168                 folder_set_xml(folder, xmlnode->tag);
3169
3170         cur = node->children;
3171         while (cur != NULL) {
3172                 GNode *itemnode;
3173
3174                 itemnode = g_node_map(cur, xml_to_folder_item, (gpointer) folder);
3175                 g_node_append(folder->node, itemnode);
3176                 cur = cur->next;
3177         }
3178         g_node_traverse(folder->node, G_IN_ORDER, G_TRAVERSE_ALL, -1, folder_item_set_node, NULL);
3179         
3180         return folder;
3181 }
3182
3183 static gchar *folder_get_list_path(void)
3184 {
3185         static gchar *filename = NULL;
3186
3187         if (!filename)
3188                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3189                                         FOLDER_LIST, NULL);
3190
3191         return filename;
3192 }
3193
3194 #define PUT_ESCAPE_STR(fp, attr, str)                   \
3195 {                                                       \
3196         fputs(" " attr "=\"", fp);                      \
3197         xml_file_put_escape_str(fp, str);               \
3198         fputs("\"", fp);                                \
3199 }
3200
3201 static gpointer folder_item_to_xml(gpointer nodedata, gpointer data)
3202 {
3203         FolderItem *item = (FolderItem *) nodedata;
3204         XMLTag *tag;
3205
3206         g_return_val_if_fail(item != NULL, NULL);
3207
3208         if (item->folder->klass->item_get_xml != NULL)
3209                 tag = item->folder->klass->item_get_xml(item->folder, item);
3210         else
3211                 tag = folder_item_get_xml(item->folder, item);
3212
3213         return xml_node_new(tag, NULL);
3214 }
3215
3216 static GNode *folder_get_xml_node(Folder *folder)
3217 {
3218         GNode *node;
3219         XMLNode *xmlnode;
3220         XMLTag *tag;
3221
3222         g_return_val_if_fail(folder != NULL, NULL);
3223
3224         if (folder->klass->get_xml != NULL)
3225                 tag = folder->klass->get_xml(folder);
3226         else
3227                 tag = folder_get_xml(folder);
3228
3229         xml_tag_add_attr(tag, xml_attr_new("type", folder->klass->idstr));
3230
3231         xmlnode = xml_node_new(tag, NULL);
3232
3233         node = g_node_new(xmlnode);
3234         if (folder->node->children) {
3235                 GNode *cur;
3236
3237                 cur = folder->node->children;
3238                 while (cur) {
3239                         GNode *xmlnode;
3240
3241                         xmlnode = g_node_map(cur, folder_item_to_xml, (gpointer) folder);
3242                         g_node_append(node, xmlnode);
3243                         cur = cur->next;
3244                 }
3245         }
3246
3247         return node;
3248 }
3249
3250 static void folder_update_op_count_rec(GNode *node)
3251 {
3252         FolderItem *fitem = FOLDER_ITEM(node->data);
3253
3254         if (g_node_depth(node) > 0) {
3255                 if (fitem->op_count > 0) {
3256                         fitem->op_count = 0;
3257                         folder_item_update(fitem, F_ITEM_UPDATE_MSGCNT);
3258                 }
3259                 if (node->children) {
3260                         GNode *child;
3261
3262                         child = node->children;
3263                         while (child) {
3264                                 GNode *cur;
3265
3266                                 cur = child;
3267                                 child = cur->next;
3268                                 folder_update_op_count_rec(cur);
3269                         }
3270                 }
3271         }
3272 }
3273
3274 void folder_update_op_count(void) 
3275 {
3276         GList *cur;
3277         Folder *folder;
3278
3279         for (cur = folder_list; cur != NULL; cur = cur->next) {
3280                 folder = cur->data;
3281                 folder_update_op_count_rec(folder->node);
3282         }
3283 }
3284
3285 typedef struct _type_str {
3286         gchar * str;
3287         gint type;
3288 } type_str;
3289
3290
3291 /*
3292 static gchar * folder_item_get_tree_identifier(FolderItem * item)
3293 {
3294         if (item->parent != NULL) {
3295                 gchar * path;
3296                 gchar * id;
3297
3298                 path = folder_item_get_tree_identifier(item->parent);
3299                 if (path == NULL)
3300                         return NULL;
3301
3302                 id = g_strconcat(path, "/", item->name, NULL);
3303                 g_free(path);
3304
3305                 return id;
3306         }
3307         else {
3308                 return g_strconcat("/", item->name, NULL);
3309         }
3310 }
3311 */
3312
3313 /* CLAWS: temporary local folder for filtering */
3314 #define TEMP_FOLDER "TEMP_FOLDER"
3315 #define PROCESSING_FOLDER_ITEM "processing"     
3316
3317 static FolderItem *processing_folder_item;
3318
3319 static void folder_create_processing_folder(void)
3320 {
3321         Folder *processing_folder;
3322         gchar      *tmpname;
3323
3324         if ((processing_folder = folder_find_from_name(TEMP_FOLDER, mh_get_class())) == NULL) {
3325                 gchar *tmppath;
3326
3327                 tmppath =
3328                     g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
3329                                 "tempfolder", NULL);
3330                 processing_folder =
3331                     folder_new(mh_get_class(), TEMP_FOLDER, tmppath);
3332                 g_free(tmppath);
3333         }
3334         g_assert(processing_folder != NULL);
3335
3336         debug_print("tmpparentroot %s\n", LOCAL_FOLDER(processing_folder)->rootpath);
3337         if (LOCAL_FOLDER(processing_folder)->rootpath[0] == '/')
3338                 tmpname = g_strconcat(LOCAL_FOLDER(processing_folder)->rootpath,
3339                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3340                                       NULL);
3341         else
3342                 tmpname = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
3343                                       LOCAL_FOLDER(processing_folder)->rootpath,
3344                                       G_DIR_SEPARATOR_S, PROCESSING_FOLDER_ITEM,
3345                                       NULL);
3346
3347         if (!is_dir_exist(tmpname)) {
3348                 debug_print("*TMP* creating %s\n", tmpname);
3349                 processing_folder_item = processing_folder->klass->create_folder(processing_folder,
3350                                                                                  processing_folder->node->data,
3351                                                                                  PROCESSING_FOLDER_ITEM);
3352         } else {
3353                 debug_print("*TMP* already created\n");
3354                 processing_folder_item = folder_item_new(processing_folder, PROCESSING_FOLDER_ITEM, PROCESSING_FOLDER_ITEM);
3355                 g_assert(processing_folder_item);
3356                 folder_item_append(processing_folder->node->data, processing_folder_item);
3357         }
3358         g_assert(processing_folder_item != NULL);
3359         g_free(tmpname);
3360 }
3361
3362 FolderItem *folder_get_default_processing(void)
3363 {
3364         if (!processing_folder_item) {
3365                 folder_create_processing_folder();
3366         }
3367         return processing_folder_item;
3368 }
3369
3370 /* folder_persist_prefs_new() - return hash table with persistent
3371  * settings (and folder name as key). 
3372  * (note that in claws other options are in the folder_item_prefs_RC
3373  * file, so those don't need to be included in PersistPref yet) 
3374  */
3375 GHashTable *folder_persist_prefs_new(Folder *folder)
3376 {
3377         GHashTable *pptable;
3378
3379         g_return_val_if_fail(folder, NULL);
3380         pptable = g_hash_table_new(g_str_hash, g_str_equal);
3381         folder_get_persist_prefs_recursive(folder->node, pptable);
3382         return pptable;
3383 }
3384
3385 void folder_persist_prefs_free(GHashTable *pptable)
3386 {
3387         g_return_if_fail(pptable);
3388         g_hash_table_foreach_remove(pptable, persist_prefs_free, NULL);
3389         g_hash_table_destroy(pptable);
3390 }
3391
3392 const PersistPrefs *folder_get_persist_prefs(GHashTable *pptable, const char *name)
3393 {
3394         if (pptable == NULL || name == NULL) return NULL;
3395         return g_hash_table_lookup(pptable, name);
3396 }
3397
3398 void folder_item_restore_persist_prefs(FolderItem *item, GHashTable *pptable)
3399 {
3400         const PersistPrefs *pp;
3401         gchar *id = folder_item_get_identifier(item);
3402
3403         pp = folder_get_persist_prefs(pptable, id); 
3404         g_free(id);
3405
3406         if (!pp) return;
3407
3408         /* CLAWS: since not all folder properties have been migrated to 
3409          * folderlist.xml, we need to call the old stuff first before
3410          * setting things that apply both to Main and Claws. */
3411         folder_item_prefs_read_config(item); 
3412
3413         item->collapsed = pp->collapsed;
3414         item->thread_collapsed = pp->thread_collapsed;
3415         item->threaded  = pp->threaded;
3416         item->ret_rcpt  = pp->ret_rcpt;
3417         item->hide_read_msgs = pp->hide_read_msgs;
3418         item->sort_key  = pp->sort_key;
3419         item->sort_type = pp->sort_type;
3420 }
3421
3422 static void folder_get_persist_prefs_recursive(GNode *node, GHashTable *pptable)
3423 {
3424         FolderItem *item = FOLDER_ITEM(node->data);
3425         PersistPrefs *pp;
3426         GNode *child, *cur;
3427         gchar *id;
3428
3429         g_return_if_fail(node != NULL);
3430         g_return_if_fail(item != NULL);
3431
3432         /* NOTE: item->path == NULL means top level folder; not interesting
3433          * to store preferences of that one.  */
3434         if (item->path) {
3435                 id = folder_item_get_identifier(item);
3436                 pp = g_new0(PersistPrefs, 1);
3437                 g_return_if_fail(pp != NULL);
3438                 pp->collapsed = item->collapsed;
3439                 pp->thread_collapsed = item->thread_collapsed;
3440                 pp->threaded  = item->threaded;
3441                 pp->ret_rcpt  = item->ret_rcpt; 
3442                 pp->hide_read_msgs = item->hide_read_msgs;
3443                 pp->sort_key  = item->sort_key;
3444                 pp->sort_type = item->sort_type;
3445                 g_hash_table_insert(pptable, id, pp);
3446         }
3447
3448         if (node->children) {
3449                 child = node->children;
3450                 while (child) {
3451                         cur = child;
3452                         child = cur->next;
3453                         folder_get_persist_prefs_recursive(cur, pptable);
3454                 }
3455         }       
3456 }
3457
3458 static gboolean persist_prefs_free(gpointer key, gpointer val, gpointer data)
3459 {
3460         if (key) 
3461                 g_free(key);
3462         if (val) 
3463                 g_free(val);
3464         return TRUE;    
3465 }
3466
3467 void folder_item_apply_processing(FolderItem *item)
3468 {
3469         GSList *processing_list;
3470         GSList *mlist, *cur;
3471         guint total = 0, curmsg = 0;
3472
3473         g_return_if_fail(item != NULL);
3474         g_return_if_fail(item->no_select == FALSE);     
3475         processing_list = item->prefs->processing;
3476
3477         folder_item_update_freeze();
3478
3479         mlist = folder_item_get_msg_list(item);
3480         total = g_slist_length(mlist);
3481         statusbar_print_all(_("Processing messages..."));
3482         for (cur = mlist ; cur != NULL ; cur = cur->next) {
3483                 MsgInfo * msginfo;
3484
3485                 msginfo = (MsgInfo *) cur->data;
3486                 
3487                 /* reset parameters that can be modified by processing */
3488                 msginfo->hidden = 0;
3489                 msginfo->score = 0;
3490
3491                 statusbar_progress_all(curmsg++,total, 10);
3492
3493                 /* apply pre global rules */
3494                 filter_message_by_msginfo(pre_global_processing, msginfo);
3495                 
3496                 /* apply rules of the folder */
3497                 filter_message_by_msginfo(processing_list, msginfo);
3498
3499                 /* apply post global rules */
3500                 filter_message_by_msginfo(post_global_processing, msginfo);
3501                 
3502                 procmsg_msginfo_free(msginfo);
3503         }
3504         g_slist_free(mlist);
3505         
3506         statusbar_progress_all(0,0,0);
3507         statusbar_pop_all();
3508
3509         folder_item_update_thaw();
3510 }
3511
3512 /*
3513  *  functions for handling FolderItem content changes
3514  */
3515 static gint folder_item_update_freeze_cnt = 0;
3516
3517 static void folder_item_update_with_msg(FolderItem *item, FolderItemUpdateFlags update_flags, MsgInfo *msg)
3518 {
3519         if (folder_item_update_freeze_cnt == 0 /* || (msg != NULL && item->opened) */) {
3520                 FolderItemUpdateData source;
3521         
3522                 source.item = item;
3523                 source.update_flags = update_flags;
3524                 source.msg = msg;
3525                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);
3526         } else {
3527                 item->update_flags |= update_flags & ~(F_ITEM_UPDATE_ADDMSG | F_ITEM_UPDATE_REMOVEMSG);
3528         }
3529 }
3530
3531 /**
3532  * Notify the folder system about changes to a folder. If the
3533  * update system is not frozen the FOLDER_ITEM_UPDATE_HOOKLIST will
3534  * be invoked, otherwise the changes will be remebered until
3535  * the folder system is thawed.
3536  *
3537  * \param item The FolderItem that was changed
3538  * \param update_flags Type of changed that was made
3539  */
3540 void folder_item_update(FolderItem *item, FolderItemUpdateFlags update_flags)
3541 {
3542         folder_item_update_with_msg(item, update_flags, NULL);
3543 }
3544
3545 void folder_item_update_recursive(FolderItem *item, FolderItemUpdateFlags update_flags)
3546 {
3547         GNode *node = item->folder->node;       
3548
3549         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
3550         node = node->children;
3551
3552         folder_item_update(item, update_flags);
3553         while (node != NULL) {
3554                 if (node && node->data) {
3555                         FolderItem *next_item = (FolderItem*) node->data;
3556
3557                         folder_item_update(next_item, update_flags);
3558                 }
3559                 node = node->next;
3560         }
3561 }
3562
3563 void folder_item_update_freeze(void)
3564 {
3565         folder_item_update_freeze_cnt++;
3566 }
3567
3568 static void folder_item_update_func(FolderItem *item, gpointer data)
3569 {
3570         FolderItemUpdateData source;
3571     
3572         if (item->update_flags) {
3573                 source.item = item;
3574                 source.update_flags = item->update_flags;
3575                 source.msg = NULL;
3576                 hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &source);                             
3577                 item->update_flags = 0;
3578         }
3579 }
3580
3581 void folder_item_update_thaw(void)
3582 {
3583         if (folder_item_update_freeze_cnt > 0)
3584                 folder_item_update_freeze_cnt--;
3585         if (folder_item_update_freeze_cnt == 0) {
3586                 /* Update all folders */
3587                 folder_func_to_all_folders(folder_item_update_func, NULL);
3588         }
3589 }
3590
3591 static void folder_item_synchronise_func(FolderItem *item, gpointer data)
3592 {
3593         Folder *folder = (Folder *)data;