src/folder.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999,2000 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 <stdio.h>
  28 #include <string.h>
  29
  30 #include "intl.h"
  31 #include "folder.h"
  32 #include "session.h"
  33 #include "imap.h"
  34 #include "news.h"
  35 #include "mh.h"
  36 #include "mbox_folder.h"
  37 #include "utils.h"
  38 #include "xml.h"
  39 #include "codeconv.h"
  40 #include "prefs.h"
  41 #include "account.h"
  42 #include "prefs_account.h"
  43 #include "mbox_folder.h"
  44
  45 static GList *folder_list = NULL;
  46
  47 static void folder_init         (Folder         *folder,
  48                                  FolderType      type,
  49                                  const gchar    *name);
  50
  51 static void local_folder_destroy        (LocalFolder    *lfolder);
  52 static void remote_folder_destroy       (RemoteFolder   *rfolder);
  53 static void mh_folder_destroy           (MHFolder       *folder);
  54 static void mbox_folder_destroy         (MboxFolder     *folder);
  55 static void imap_folder_destroy         (IMAPFolder     *folder);
  56 static void news_folder_destroy         (NewsFolder     *folder);
  57
  58 static gboolean folder_read_folder_func (GNode          *node,
  59                                          gpointer        data);
  60 static gchar *folder_get_list_path      (void);
  61 static void folder_write_list_recursive (GNode          *node,
  62                                          gpointer        data);
  63
  64
  65 Folder *folder_new(FolderType type, const gchar *name, const gchar *path)
  66 {
  67         Folder *folder = NULL;
  68
  69         name = name ? name : path;
  70         switch (type) {
  71         case F_MBOX:
  72                 folder = mbox_folder_new(name, path);
  73                 break;
  74         case F_MH:
  75                 folder = mh_folder_new(name, path);
  76                 break;
  77         case F_IMAP:
  78                 folder = imap_folder_new(name, path);
  79                 break;
  80         case F_NEWS:
  81                 folder = news_folder_new(name, path);
  82                 break;
  83         default:
  84                 return NULL;
  85         }
  86
  87         return folder;
  88 }
  89
  90 Folder *mh_folder_new(const gchar *name, const gchar *path)
  91 {
  92         Folder *folder;
  93
  94         folder = (Folder *)g_new0(MHFolder, 1);
  95         folder_init(folder, F_MH, name);
  96         LOCAL_FOLDER(folder)->rootpath = g_strdup(path);
  97
  98         return folder;
  99 }
 100
 101 Folder *mbox_folder_new(const gchar *name, const gchar *path)
 102 {
 103         /* implementing */
 104         Folder *folder;
 105
 106         folder = (Folder *)g_new0(MboxFolder, 1);
 107         folder_init(folder, F_MBOX, name);
 108         LOCAL_FOLDER(folder)->rootpath = g_strdup(path);
 109
 110         return folder;
 111 }
 112
 113 Folder *maildir_folder_new(const gchar *name, const gchar *path)
 114 {
 115         /* not yet implemented */
 116         return NULL;
 117 }
 118
 119 Folder *imap_folder_new(const gchar *name, const gchar *path)
 120 {
 121         Folder *folder;
 122
 123         folder = (Folder *)g_new0(IMAPFolder, 1);
 124         folder_init(folder, F_IMAP, name);
 125
 126         return folder;
 127 }
 128
 129 Folder *news_folder_new(const gchar *name, const gchar *path)
 130 {
 131         Folder *folder;
 132
 133         folder = (Folder *)g_new0(NewsFolder, 1);
 134         folder_init(folder, F_NEWS, name);
 135
 136         return folder;
 137 }
 138
 139 FolderItem *folder_item_new(const gchar *name, const gchar *path)
 140 {
 141         FolderItem *item;
 142
 143         item = g_new0(FolderItem, 1);
 144
 145         item->stype = F_NORMAL;
 146         item->name = g_strdup(name);
 147         item->path = g_strdup(path);
 148         item->account = NULL;
 149         item->mtime = 0;
 150         item->new = 0;
 151         item->unread = 0;
 152         item->total = 0;
 153         item->last_num = -1;
 154         item->parent = NULL;
 155         item->folder = NULL;
 156         item->data = NULL;
 157
 158         item->prefs = prefs_folder_item_new();
 159
 160         return item;
 161 }
 162
 163 void folder_item_append(FolderItem *parent, FolderItem *item)
 164 {
 165         GNode *node;
 166
 167         g_return_if_fail(parent != NULL);
 168         g_return_if_fail(parent->folder != NULL);
 169         g_return_if_fail(item != NULL);
 170
 171         node = parent->folder->node;
 172         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, parent);
 173         g_return_if_fail(node != NULL);
 174
 175         item->parent = parent;
 176         item->folder = parent->folder;
 177         g_node_append_data(node, item);
 178 }
 179
 180 void folder_item_remove(FolderItem *item)
 181 {
 182         GNode *node;
 183
 184         g_return_if_fail(item != NULL);
 185         g_return_if_fail(item->folder != NULL);
 186
 187         node = item->folder->node;
 188         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 189         g_return_if_fail(node != NULL);
 190
 191         /* TODO: free all FolderItem's first */
 192         if (item->folder->node == node)
 193                 item->folder->node = NULL;
 194         g_node_destroy(node);
 195 }
 196
 197 void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)
 198 {
 199         g_return_if_fail(folder != NULL);
 200
 201         folder->ui_func = func;
 202         folder->ui_func_data = data;
 203 }
 204
 205 void folder_set_name(Folder *folder, const gchar *name)
 206 {
 207         g_return_if_fail(folder != NULL);
 208
 209         g_free(folder->name);
 210         folder->name = name ? g_strdup(name) : NULL;
 211         if (folder->node && folder->node->data) {
 212                 FolderItem *item = (FolderItem *)folder->node->data;
 213
 214                 g_free(item->name);
 215                 item->name = name ? g_strdup(name) : NULL;
 216         }
 217 }
 218
 219 void folder_destroy(Folder *folder)
 220 {
 221         g_return_if_fail(folder != NULL);
 222
 223         folder_list = g_list_remove(folder_list, folder);
 224
 225         switch (folder->type) {
 226         case F_MH:
 227                 mh_folder_destroy(MH_FOLDER(folder));
 228                 break;
 229         case F_MBOX:
 230                 mbox_folder_destroy(MBOX_FOLDER(folder));
 231                 break;
 232         case F_IMAP:
 233                 imap_folder_destroy(IMAP_FOLDER(folder));
 234                 break;
 235         case F_NEWS:
 236                 news_folder_destroy(NEWS_FOLDER(folder));
 237                 break;
 238         default:
 239         }
 240
 241         folder_tree_destroy(folder);
 242         g_free(folder->name);
 243         g_free(folder);
 244 }
 245
 246 void folder_tree_destroy(Folder *folder)
 247 {
 248         /* TODO: destroy all FolderItem before */
 249         g_node_destroy(folder->node);
 250 }
 251
 252 void folder_add(Folder *folder)
 253 {
 254         Folder *cur_folder;
 255         GList *cur;
 256         gint i;
 257
 258         g_return_if_fail(folder != NULL);
 259
 260         for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {
 261                 cur_folder = FOLDER(cur->data);
 262                 if (folder->type == F_MH) {
 263                         if (cur_folder->type != F_MH) break;
 264                 } else if (folder->type == F_MBOX) {
 265                         if (cur_folder->type != F_MH &&
 266                             cur_folder->type != F_MBOX) break;
 267                 } else if (folder->type == F_IMAP) {
 268                         if (cur_folder->type != F_MH &&
 269                             cur_folder->type != F_MBOX &&
 270                             cur_folder->type != F_IMAP) break;
 271                 } else if (folder->type == F_NEWS) {
 272                         if (cur_folder->type != F_MH &&
 273                             cur_folder->type != F_MBOX &&
 274                             cur_folder->type != F_IMAP &&
 275                             cur_folder->type != F_NEWS) break;
 276                 }
 277         }
 278
 279         folder_list = g_list_insert(folder_list, folder, i);
 280 }
 281
 282 GList *folder_get_list(void)
 283 {
 284         return folder_list;
 285 }
 286
 287 gint folder_read_list(void)
 288 {
 289         GNode *node;
 290         XMLNode *xmlnode;
 291
 292         node = xml_parse_file(folder_get_list_path());
 293         if (!node) return -1;
 294
 295         xmlnode = node->data;
 296         if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {
 297                 g_warning("wrong folder list\n");
 298                 xml_free_tree(node);
 299                 return -1;
 300         }
 301
 302         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, 2,
 303                         folder_read_folder_func, NULL);
 304
 305         xml_free_tree(node);
 306         if (folder_list)
 307                 return 0;
 308         else
 309                 return -1;
 310 }
 311
 312 void folder_write_list(void)
 313 {
 314         GList *list;
 315         Folder *folder;
 316         gchar *path;
 317         PrefFile *pfile;
 318
 319         path = folder_get_list_path();
 320         if ((pfile = prefs_write_open(path)) == NULL) return;
 321
 322         fprintf(pfile->fp, "<?xml version=\"1.0\" encoding=\"%s\"?>\n",
 323                 conv_get_current_charset_str());
 324         fputs("\n<folderlist>\n", pfile->fp);
 325
 326         for (list = folder_list; list != NULL; list = list->next) {
 327                 folder = list->data;
 328                 folder_write_list_recursive(folder->node, pfile->fp);
 329         }
 330
 331         fputs("</folderlist>\n", pfile->fp);
 332
 333         if (prefs_write_close(pfile) < 0)
 334                 g_warning("failed to write folder list.\n");
 335 }
 336
 337 Folder *folder_find_from_path(const gchar *path)
 338 {
 339         GList *list;
 340         Folder *folder;
 341
 342         for (list = folder_list; list != NULL; list = list->next) {
 343                 folder = list->data;
 344                 if (folder->type == F_MH &&
 345                     !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))
 346                         return folder;
 347         }
 348
 349         return NULL;
 350 }
 351
 352 static gboolean folder_item_find_func(GNode *node, gpointer data)
 353 {
 354         FolderItem *item = node->data;
 355         gpointer *d = data;
 356         const gchar *path = d[0];
 357
 358         if (path_cmp(path, item->path) != 0)
 359                 return FALSE;
 360
 361         d[1] = item;
 362
 363         return TRUE;
 364 }
 365
 366 FolderItem *folder_find_item_from_path(const gchar *path)
 367 {
 368         Folder *folder;
 369         gpointer d[2];
 370
 371         folder = folder_get_default_folder();
 372         g_return_val_if_fail(folder != NULL, NULL);
 373
 374         d[0] = (gpointer)path;
 375         d[1] = NULL;
 376         g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 377                         folder_item_find_func, d);
 378         return d[1];
 379 }
 380
 381 Folder *folder_get_default_folder(void)
 382 {
 383         return FOLDER(folder_list->data);
 384 }
 385
 386 FolderItem *folder_get_default_inbox(void)
 387 {
 388         Folder *folder;
 389
 390         folder = FOLDER(folder_list->data);
 391         g_return_val_if_fail(folder != NULL, NULL);
 392         return folder->inbox;
 393 }
 394
 395 FolderItem *folder_get_default_outbox(void)
 396 {
 397         Folder *folder;
 398
 399         folder = FOLDER(folder_list->data);
 400         g_return_val_if_fail(folder != NULL, NULL);
 401         return folder->outbox;
 402 }
 403
 404 FolderItem *folder_get_default_draft(void)
 405 {
 406         Folder *folder;
 407
 408         folder = FOLDER(folder_list->data);
 409         g_return_val_if_fail(folder != NULL, NULL);
 410         return folder->draft;
 411 }
 412
 413 FolderItem *folder_get_default_queue(void)
 414 {
 415         Folder *folder;
 416
 417         folder = FOLDER(folder_list->data);
 418         g_return_val_if_fail(folder != NULL, NULL);
 419         return folder->queue;
 420 }
 421
 422 FolderItem *folder_get_default_trash(void)
 423 {
 424         Folder *folder;
 425
 426         folder = FOLDER(folder_list->data);
 427         g_return_val_if_fail(folder != NULL, NULL);
 428         return folder->trash;
 429 }
 430
 431 gchar *folder_item_get_path(FolderItem *item)
 432 {
 433         gchar *folder_path;
 434         gchar *path;
 435
 436         g_return_val_if_fail(item != NULL, NULL);
 437
 438         if (FOLDER_TYPE(item->folder) == F_MH)
 439                 folder_path = g_strdup(LOCAL_FOLDER(item->folder)->rootpath);
 440         else if (FOLDER_TYPE(item->folder) == F_MBOX) {
 441                 path = mbox_get_virtual_path(item);
 442                 if (path == NULL)
 443                         return NULL;
 444                 folder_path = g_strconcat(get_mbox_cache_dir(),
 445                                           G_DIR_SEPARATOR_S, path, NULL);
 446                 g_free(path);
 447
 448                 return folder_path;
 449         }
 450         else if (FOLDER_TYPE(item->folder) == F_IMAP) {
 451                 g_return_val_if_fail(item->folder->account != NULL, NULL);
 452                 folder_path = g_strconcat(get_imap_cache_dir(),
 453                                           G_DIR_SEPARATOR_S,
 454                                           item->folder->account->recv_server,
 455                                           G_DIR_SEPARATOR_S,
 456                                           item->folder->account->userid,
 457                                           NULL);
 458         } else if (FOLDER_TYPE(item->folder) == F_NEWS) {
 459                 g_return_val_if_fail(item->folder->account != NULL, NULL);
 460                 folder_path = g_strconcat(get_news_cache_dir(),
 461                                           G_DIR_SEPARATOR_S,
 462                                           item->folder->account->nntp_server,
 463                                           NULL);
 464         } else
 465                 return NULL;
 466
 467         g_return_val_if_fail(folder_path != NULL, NULL);
 468
 469         if (folder_path[0] == G_DIR_SEPARATOR) {
 470                 if (item->path)
 471                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 472                                            item->path, NULL);
 473                 else
 474                         path = g_strdup(folder_path);
 475         } else {
 476                 if (item->path)
 477                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 478                                            folder_path, G_DIR_SEPARATOR_S,
 479                                            item->path, NULL);
 480                 else
 481                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 482                                            folder_path, NULL);
 483         }
 484
 485         g_free(folder_path);
 486         return path;
 487 }
 488
 489 void folder_item_scan(FolderItem *item)
 490 {
 491         Folder *folder;
 492
 493         g_return_if_fail(item != NULL);
 494
 495         folder = item->folder;
 496
 497         g_return_if_fail(folder->scan != NULL);
 498
 499         folder->scan(folder, item);
 500 }
 501
 502 static void folder_item_scan_foreach_func(gpointer key, gpointer val,
 503                                           gpointer data)
 504 {
 505         folder_item_scan(FOLDER_ITEM(key));
 506 }
 507
 508 void folder_item_scan_foreach(GHashTable *table)
 509 {
 510         g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);
 511 }
 512
 513 gchar *folder_item_fetch_msg(FolderItem *item, gint num)
 514 {
 515         Folder *folder;
 516
 517         g_return_val_if_fail(item != NULL, NULL);
 518
 519         folder = item->folder;
 520
 521         g_return_val_if_fail(folder->scan != NULL, NULL);
 522         g_return_val_if_fail(folder->fetch_msg != NULL, NULL);
 523
 524         if (item->last_num < 0) folder->scan(folder, item);
 525
 526         return folder->fetch_msg(folder, item, num);
 527 }
 528
 529 gint folder_item_add_msg(FolderItem *dest, const gchar *file,
 530                          gboolean remove_source)
 531 {
 532         Folder *folder;
 533         gint num;
 534
 535         g_return_val_if_fail(dest != NULL, -1);
 536         g_return_val_if_fail(file != NULL, -1);
 537
 538         folder = dest->folder;
 539
 540         g_return_val_if_fail(folder->scan != NULL, -1);
 541         g_return_val_if_fail(folder->add_msg != NULL, -1);
 542
 543         if (dest->last_num < 0) folder->scan(folder, dest);
 544
 545         num = folder->add_msg(folder, dest, file, remove_source);
 546         if (num > 0) dest->last_num = num;
 547
 548         return num;
 549 }
 550
 551 gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)
 552 {
 553         Folder *folder;
 554         gint num;
 555
 556         g_return_val_if_fail(dest != NULL, -1);
 557         g_return_val_if_fail(msginfo != NULL, -1);
 558
 559         folder = dest->folder;
 560
 561         g_return_val_if_fail(folder->scan != NULL, -1);
 562         g_return_val_if_fail(folder->move_msg != NULL, -1);
 563
 564         if (dest->last_num < 0) folder->scan(folder, dest);
 565
 566         num = folder->move_msg(folder, dest, msginfo);
 567         if (num > 0) dest->last_num = num;
 568
 569         return num;
 570 }
 571
 572 gint folder_item_move_msgs_with_dest(FolderItem *dest, GSList *msglist)
 573 {
 574         Folder *folder;
 575         gint num;
 576
 577         g_return_val_if_fail(dest != NULL, -1);
 578         g_return_val_if_fail(msglist != NULL, -1);
 579
 580         folder = dest->folder;
 581
 582         g_return_val_if_fail(folder->scan != NULL, -1);
 583         g_return_val_if_fail(folder->move_msgs_with_dest != NULL, -1);
 584
 585         if (dest->last_num < 0) folder->scan(folder, dest);
 586
 587         num = folder->move_msgs_with_dest(folder, dest, msglist);
 588         if (num > 0) dest->last_num = num;
 589
 590         return num;
 591 }
 592
 593 gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)
 594 {
 595         Folder *folder;
 596         gint num;
 597
 598         g_return_val_if_fail(dest != NULL, -1);
 599         g_return_val_if_fail(msginfo != NULL, -1);
 600
 601         folder = dest->folder;
 602
 603         g_return_val_if_fail(folder->scan != NULL, -1);
 604         g_return_val_if_fail(folder->copy_msg != NULL, -1);
 605
 606         if (dest->last_num < 0) folder->scan(folder, dest);
 607
 608         num = folder->copy_msg(folder, dest, msginfo);
 609         if (num > 0) dest->last_num = num;
 610
 611         return num;
 612 }
 613
 614 gint folder_item_copy_msgs_with_dest(FolderItem *dest, GSList *msglist)
 615 {
 616         Folder *folder;
 617         gint num;
 618
 619         g_return_val_if_fail(dest != NULL, -1);
 620         g_return_val_if_fail(msglist != NULL, -1);
 621
 622         folder = dest->folder;
 623
 624         g_return_val_if_fail(folder->scan != NULL, -1);
 625         g_return_val_if_fail(folder->copy_msgs_with_dest != NULL, -1);
 626
 627         if (dest->last_num < 0) folder->scan(folder, dest);
 628
 629         num = folder->copy_msgs_with_dest(folder, dest, msglist);
 630         if (num > 0) dest->last_num = num;
 631
 632         return num;
 633 }
 634
 635 gint folder_item_remove_msg(FolderItem *item, gint num)
 636 {
 637         Folder *folder;
 638
 639         g_return_val_if_fail(item != NULL, -1);
 640
 641         folder = item->folder;
 642
 643         g_return_val_if_fail(folder->scan != NULL, -1);
 644         g_return_val_if_fail(folder->remove_msg != NULL, -1);
 645
 646         if (item->last_num < 0) folder->scan(folder, item);
 647
 648         return folder->remove_msg(folder, item, num);
 649 }
 650
 651 gint folder_item_remove_all_msg(FolderItem *item)
 652 {
 653         Folder *folder;
 654
 655         g_return_val_if_fail(item != NULL, -1);
 656         g_return_val_if_fail(folder->scan != NULL, -1);
 657         g_return_val_if_fail(folder->remove_all_msg != NULL, -1);
 658
 659         folder = item->folder;
 660         if (item->last_num < 0) folder->scan(folder, item);
 661
 662         return folder->remove_all_msg(folder, item);
 663 }
 664
 665 gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)
 666 {
 667         Folder *folder;
 668
 669         g_return_val_if_fail(item != NULL, FALSE);
 670
 671         folder = item->folder;
 672
 673         g_return_val_if_fail(folder->is_msg_changed != NULL, -1);
 674
 675         return folder->is_msg_changed(folder, item, msginfo);
 676 }
 677
 678 gchar *folder_item_get_cache_file(FolderItem *item)
 679 {
 680         gchar *path;
 681         gchar *file;
 682
 683         g_return_val_if_fail(item != NULL, NULL);
 684         g_return_val_if_fail(item->path != NULL, NULL);
 685
 686         path = folder_item_get_path(item);
 687         g_return_val_if_fail(path != NULL, NULL);
 688         if (!is_dir_exist(path))
 689                 make_dir_hier(path);
 690         file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);
 691         g_free(path);
 692
 693         return file;
 694 }
 695
 696 gchar *folder_item_get_mark_file(FolderItem *item)
 697 {
 698         gchar *path;
 699         gchar *file;
 700
 701         g_return_val_if_fail(item != NULL, NULL);
 702         g_return_val_if_fail(item->path != NULL, NULL);
 703
 704         path = folder_item_get_path(item);
 705         g_return_val_if_fail(path != NULL, NULL);
 706         if (!is_dir_exist(path))
 707                 make_dir_hier(path);
 708         file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);
 709         g_free(path);
 710
 711         return file;
 712 }
 713
 714
 715 static void folder_init(Folder *folder, FolderType type, const gchar *name)
 716 {
 717         FolderItem *item;
 718
 719         g_return_if_fail(folder != NULL);
 720
 721         folder->type = type;
 722         folder_set_name(folder, name);
 723         folder->account = NULL;
 724         folder->inbox = NULL;
 725         folder->outbox = NULL;
 726         folder->draft = NULL;
 727         folder->queue = NULL;
 728         folder->trash = NULL;
 729         folder->ui_func = NULL;
 730         folder->ui_func_data = NULL;
 731         item = folder_item_new(name, NULL);
 732         item->folder = folder;
 733         folder->node = g_node_new(item);
 734         folder->data = NULL;
 735
 736         switch (type) {
 737         case F_MH:
 738                 folder->get_msg_list        = mh_get_msg_list;
 739                 folder->fetch_msg           = mh_fetch_msg;
 740                 folder->add_msg             = mh_add_msg;
 741                 folder->move_msg            = mh_move_msg;
 742                 folder->move_msgs_with_dest = mh_move_msgs_with_dest;
 743                 folder->copy_msg            = mh_copy_msg;
 744                 folder->copy_msgs_with_dest = mh_copy_msgs_with_dest;
 745                 folder->remove_msg          = mh_remove_msg;
 746                 folder->remove_all_msg      = mh_remove_all_msg;
 747                 folder->is_msg_changed      = mh_is_msg_changed;
 748                 folder->scan                = mh_scan_folder;
 749                 folder->scan_tree           = mh_scan_tree;
 750                 folder->create_tree         = mh_create_tree;
 751                 folder->create_folder       = mh_create_folder;
 752                 folder->rename_folder       = mh_rename_folder;
 753                 folder->remove_folder       = mh_remove_folder;
 754                 break;
 755         case F_IMAP:
 756                 folder->get_msg_list        = imap_get_msg_list;
 757                 folder->fetch_msg           = imap_fetch_msg;
 758                 folder->move_msg            = imap_move_msg;
 759                 folder->move_msgs_with_dest = imap_move_msgs_with_dest;
 760                 folder->remove_msg          = imap_remove_msg;
 761                 folder->remove_all_msg      = imap_remove_all_msg;
 762                 folder->scan                = imap_scan_folder;
 763                 folder->create_folder       = imap_create_folder;
 764                 folder->remove_folder       = imap_remove_folder;
 765                 break;
 766         case F_NEWS:
 767                 folder->get_msg_list        = news_get_article_list;
 768                 folder->fetch_msg           = news_fetch_msg;
 769                 folder->scan                = news_scan_group;
 770                 break;
 771         case F_MBOX:
 772                 folder->get_msg_list        = mbox_get_msg_list;
 773                 folder->fetch_msg           = mbox_fetch_msg;
 774                 folder->scan                = mbox_scan_folder;
 775                 folder->add_msg             = mbox_add_msg;
 776                 folder->remove_all_msg      = mbox_remove_all_msg;
 777                 folder->remove_msg          = mbox_remove_msg;
 778                 folder->update_mark         = mbox_update_mark;
 779                 folder->move_msg            = mbox_move_msg;
 780                 folder->move_msgs_with_dest = mbox_move_msgs_with_dest;
 781
 782                 /*
 783                 folder->remove_msg          = mh_remove_msg;
 784                 folder->is_msg_changed      = mh_is_msg_changed;
 785                 folder->scan_tree           = mh_scan_tree;
 786                 folder->create_tree         = mh_create_tree;
 787                 folder->create_folder       = mh_create_folder;
 788                 folder->rename_folder       = mh_rename_folder;
 789                 folder->remove_folder       = mh_remove_folder;*/
 790                 break;
 791         default:
 792         }
 793
 794         switch (type) {
 795         case F_MH:
 796         case F_MBOX:
 797         case F_MAILDIR:
 798                 LOCAL_FOLDER(folder)->rootpath = NULL;
 799                 break;
 800         case F_IMAP:
 801         case F_NEWS:
 802                 REMOTE_FOLDER(folder)->session   = NULL;
 803                 break;
 804         default:
 805         }
 806 }
 807
 808 static void local_folder_destroy(LocalFolder *lfolder)
 809 {
 810         g_return_if_fail(lfolder != NULL);
 811
 812         g_free(lfolder->rootpath);
 813 }
 814
 815 static void remote_folder_destroy(RemoteFolder *rfolder)
 816 {
 817         g_return_if_fail(rfolder != NULL);
 818
 819         if (rfolder->session)
 820                 session_destroy(rfolder->session);
 821 }
 822
 823 static void mh_folder_destroy(MHFolder *folder)
 824 {
 825         local_folder_destroy(LOCAL_FOLDER(folder));
 826 }
 827
 828 static void mbox_folder_destroy(MboxFolder *folder)
 829 {
 830         local_folder_destroy(LOCAL_FOLDER(folder));
 831 }
 832
 833 static void imap_folder_destroy(IMAPFolder *folder)
 834 {
 835         remote_folder_destroy(REMOTE_FOLDER(folder));
 836 }
 837
 838 static void news_folder_destroy(NewsFolder *folder)
 839 {
 840         remote_folder_destroy(REMOTE_FOLDER(folder));
 841 }
 842
 843 static gboolean folder_build_tree(GNode *node, gpointer data)
 844 {
 845         Folder *folder = FOLDER(data);
 846         FolderItem *item;
 847         XMLNode *xmlnode;
 848         GList *list;
 849         SpecialFolderItemType stype = F_NORMAL;
 850         const gchar *name = NULL;
 851         const gchar *path = NULL;
 852         PrefsAccount *account = NULL;
 853         gint mtime = 0, new = 0, unread = 0, total = 0;
 854
 855         g_return_val_if_fail(node->data != NULL, FALSE);
 856         if (!node->parent) return FALSE;
 857
 858         xmlnode = node->data;
 859         if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {
 860                 g_warning("tag name != \"folderitem\"\n");
 861                 return FALSE;
 862         }
 863
 864         list = xmlnode->tag->attr;
 865         for (; list != NULL; list = list->next) {
 866                 XMLAttr *attr = list->data;
 867
 868                 if (!attr || !attr->name || !attr->value) continue;
 869                 if (!strcmp(attr->name, "type")) {
 870                         if (!strcasecmp(attr->value, "normal"))
 871                                 stype = F_NORMAL;
 872                         else if (!strcasecmp(attr->value, "inbox"))
 873                                 stype = F_INBOX;
 874                         else if (!strcasecmp(attr->value, "outbox"))
 875                                 stype = F_OUTBOX;
 876                         else if (!strcasecmp(attr->value, "draft"))
 877                                 stype = F_DRAFT;
 878                         else if (!strcasecmp(attr->value, "queue"))
 879                                 stype = F_QUEUE;
 880                         else if (!strcasecmp(attr->value, "trash"))
 881                                 stype = F_TRASH;
 882                 } else if (!strcmp(attr->name, "name"))
 883                         name = attr->value;
 884                 else if (!strcmp(attr->name, "path"))
 885                         path = attr->value;
 886                 else if (!strcmp(attr->name, "account_id")) {
 887                         account = account_find_from_id(atoi(attr->value));
 888                         if (!account) g_warning("account_id: %s not found\n",
 889                                                 attr->value);
 890                 }
 891                 else if (!strcmp(attr->name, "mtime"))
 892                         mtime = atoi(attr->value);
 893                 else if (!strcmp(attr->name, "new"))
 894                         new = atoi(attr->value);
 895                 else if (!strcmp(attr->name, "unread"))
 896                         unread = atoi(attr->value);
 897                 else if (!strcmp(attr->name, "total"))
 898                         total = atoi(attr->value);
 899         }
 900
 901         item = folder_item_new(name, path);
 902         item->stype = stype;
 903         item->account = account;
 904         item->mtime = mtime;
 905         item->new = new;
 906         item->unread = unread;
 907         item->total = total;
 908         item->parent = FOLDER_ITEM(node->parent->data);
 909         item->folder = folder;
 910         switch (stype) {
 911         case F_INBOX:  folder->inbox  = item; break;
 912         case F_OUTBOX: folder->outbox = item; break;
 913         case F_DRAFT:  folder->draft  = item; break;
 914         case F_QUEUE:  folder->queue  = item; break;
 915         case F_TRASH:  folder->trash  = item; break;
 916         default:
 917         }
 918
 919         prefs_folder_item_read_config(item);
 920
 921         node->data = item;
 922         xml_free_node(xmlnode);
 923
 924         return FALSE;
 925 }
 926
 927 static gboolean folder_read_folder_func(GNode *node, gpointer data)
 928 {
 929         Folder *folder;
 930         XMLNode *xmlnode;
 931         GList *list;
 932         FolderType type = F_UNKNOWN;
 933         const gchar *name = NULL;
 934         const gchar *path = NULL;
 935         PrefsAccount *account = NULL;
 936
 937         if (g_node_depth(node) != 2) return FALSE;
 938         g_return_val_if_fail(node->data != NULL, FALSE);
 939
 940         xmlnode = node->data;
 941         if (strcmp2(xmlnode->tag->tag, "folder") != 0) {
 942                 g_warning("tag name != \"folder\"\n");
 943                 return TRUE;
 944         }
 945         g_node_unlink(node);
 946         list = xmlnode->tag->attr;
 947         for (; list != NULL; list = list->next) {
 948                 XMLAttr *attr = list->data;
 949
 950                 if (!attr || !attr->name || !attr->value) continue;
 951                 if (!strcmp(attr->name, "type")) {
 952                         if (!strcasecmp(attr->value, "mh"))
 953                                 type = F_MH;
 954                         else if (!strcasecmp(attr->value, "mbox"))
 955                                 type = F_MBOX;
 956                         else if (!strcasecmp(attr->value, "maildir"))
 957                                 type = F_MAILDIR;
 958                         else if (!strcasecmp(attr->value, "imap"))
 959                                 type = F_IMAP;
 960                         else if (!strcasecmp(attr->value, "news"))
 961                                 type = F_NEWS;
 962                 } else if (!strcmp(attr->name, "name"))
 963                         name = attr->value;
 964                 else if (!strcmp(attr->name, "path"))
 965                         path = attr->value;
 966                 else if (!strcmp(attr->name, "account_id")) {
 967                         account = account_find_from_id(atoi(attr->value));
 968                         if (!account) g_warning("account_id: %s not found\n",
 969                                                 attr->value);
 970                 }
 971         }
 972
 973         folder = folder_new(type, name, path);
 974         g_return_val_if_fail(folder != NULL, FALSE);
 975         folder->account = account;
 976         if (account && (type == F_IMAP || type == F_NEWS))
 977                 account->folder = REMOTE_FOLDER(folder);
 978         node->data = folder->node->data;
 979         g_node_destroy(folder->node);
 980         folder->node = node;
 981         folder_add(folder);
 982
 983         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 984                         folder_build_tree, folder);
 985
 986         return FALSE;
 987 }
 988
 989 static gchar *folder_get_list_path(void)
 990 {
 991         static gchar *filename = NULL;
 992
 993         if (!filename)
 994                 filename =  g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 995                                         FOLDER_LIST, NULL);
 996
 997         return filename;
 998 }
 999
1000 static void folder_write_list_recursive(GNode *node, gpointer data)
1001 {
1002         FILE *fp = (FILE *)data;
1003         FolderItem *item = FOLDER_ITEM(node->data);
1004         gint i, depth;
1005         static gchar *folder_type_str[] = {"mh", "mbox", "maildir", "imap",
1006                                            "news", "unknown"};
1007         static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
1008                                                  "draft", "queue", "trash"};
1009
1010         g_return_if_fail(item != NULL);
1011
1012         depth = g_node_depth(node);
1013         for (i = 0; i < depth; i++)
1014                 fputs("    ", fp);
1015         if (depth == 1) {
1016                 Folder *folder = item->folder;
1017
1018                 fprintf(fp, "<folder type=\"%s\"", folder_type_str[folder->type]);
1019                 if (folder->name) {
1020                         fputs(" name=\"", fp);
1021                         xml_file_put_escape_str(fp, folder->name);
1022                         fputs("\"", fp);
1023                 }
1024                 if (folder->type == F_MH) {
1025                         fputs(" path=\"", fp);
1026                         xml_file_put_escape_str
1027                                 (fp, LOCAL_FOLDER(folder)->rootpath);
1028                         fputs("\"", fp);
1029                 }
1030                 if (folder->account)
1031                         fprintf(fp, " account_id=\"%d\"",
1032                                 folder->account->account_id);
1033         } else {
1034                 fprintf(fp, "<folderitem type=\"%s\"",
1035                         folder_item_stype_str[item->stype]);
1036                 if (item->name) {
1037                         fputs(" name=\"", fp);
1038                         xml_file_put_escape_str(fp, item->name);
1039                         fputs("\"", fp);
1040                 }
1041                 if (item->path) {
1042                         fputs(" path=\"", fp);
1043                         xml_file_put_escape_str(fp, item->path);
1044                         fputs("\"", fp);
1045                 }
1046                 if (item->account)
1047                         fprintf(fp, " account_id = \"%d\"",
1048                                 item->account->account_id);
1049                 fprintf(fp,
1050                         " mtime=\"%ld\" new=\"%d\" unread=\"%d\" total=\"%d\"",
1051                         item->mtime, item->new, item->unread, item->total);
1052         }
1053
1054         if (node->children) {
1055                 GNode *child;
1056                 fputs(">\n", fp);
1057
1058                 child = node->children;
1059                 while (child) {
1060                         GNode *cur;
1061
1062                         cur = child;
1063                         child = cur->next;
1064                         folder_write_list_recursive(cur, data);
1065                 }
1066
1067                 for (i = 0; i < depth; i++)
1068                         fputs("    ", fp);
1069                 fprintf(fp, "</%s>\n", depth == 1 ? "folder" : "folderitem");
1070         } else
1071                 fputs(" />\n", fp);
1072 }