src/mh.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., 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 <glib/gi18n.h>
  28 #include <dirent.h>
  29 #include <sys/stat.h>
  30 #include <unistd.h>
  31 #include <string.h>
  32 #include <errno.h>
  33
  34 #undef MEASURE_TIME
  35
  36 #ifdef MEASURE_TIME
  37 #  include <sys/time.h>
  38 #endif
  39
  40 #include "folder.h"
  41 #include "mh.h"
  42 #include "procmsg.h"
  43 #include "procheader.h"
  44 #include "utils.h"
  45 #include "codeconv.h"
  46
  47 static void     mh_folder_init          (Folder         *folder,
  48                                          const gchar    *name,
  49                                          const gchar    *path);
  50
  51 static Folder   *mh_folder_new          (const gchar    *name,
  52                                          const gchar    *path);
  53 static void     mh_folder_destroy       (Folder         *folder);
  54 static gchar   *mh_fetch_msg            (Folder         *folder,
  55                                          FolderItem     *item,
  56                                          gint            num);
  57 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  58                                          FolderItem     *item,
  59                                          gint            num);
  60 static gint     mh_add_msg              (Folder         *folder,
  61                                          FolderItem     *dest,
  62                                          const gchar    *file,
  63                                          MsgFlags       *flags);
  64 static gint     mh_add_msgs             (Folder         *folder,
  65                                          FolderItem     *dest,
  66                                          GSList         *file_list,
  67                                          GRelation      *relation);
  68 static gint     mh_copy_msg             (Folder         *folder,
  69                                          FolderItem     *dest,
  70                                          MsgInfo        *msginfo);
  71 static gint     mh_remove_msg           (Folder         *folder,
  72                                          FolderItem     *item,
  73                                          gint            num);
  74 static gint     mh_remove_all_msg       (Folder         *folder,
  75                                          FolderItem     *item);
  76 static gboolean mh_is_msg_changed       (Folder         *folder,
  77                                          FolderItem     *item,
  78                                          MsgInfo        *msginfo);
  79
  80 static gint     mh_get_num_list         (Folder         *folder,
  81                                          FolderItem     *item,
  82                                          GSList         **list,
  83                                          gboolean       *old_uids_valid);
  84 static gint     mh_scan_tree            (Folder         *folder);
  85
  86 static gint    mh_create_tree           (Folder         *folder);
  87 static FolderItem *mh_create_folder     (Folder         *folder,
  88                                          FolderItem     *parent,
  89                                          const gchar    *name);
  90 static gint    mh_rename_folder         (Folder         *folder,
  91                                          FolderItem     *item,
  92                                          const gchar    *name);
  93 static gint    mh_remove_folder         (Folder         *folder,
  94                                          FolderItem     *item);
  95
  96 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
  97
  98 static MsgInfo *mh_parse_msg                    (const gchar    *file,
  99                                                  FolderItem     *item);
 100 static void     mh_remove_missing_folder_items  (Folder         *folder);
 101 static gchar    *mh_filename_from_utf8          (const gchar    *path);
 102 static gchar    *mh_filename_to_utf8            (const gchar    *path);
 103 static void     mh_scan_tree_recursive          (FolderItem     *item);
 104
 105 static gboolean mh_rename_folder_func           (GNode          *node,
 106                                                  gpointer        data);
 107 static gchar   *mh_item_get_path                (Folder *folder,
 108                                                  FolderItem *item);
 109
 110 static gboolean mh_scan_required        (Folder         *folder,
 111                                          FolderItem     *item);
 112
 113 static FolderClass mh_class;
 114
 115 FolderClass *mh_get_class(void)
 116 {
 117         if (mh_class.idstr == NULL) {
 118                 mh_class.type = F_MH;
 119                 mh_class.idstr = "mh";
 120                 mh_class.uistr = "MH";
 121
 122                 /* Folder functions */
 123                 mh_class.new_folder = mh_folder_new;
 124                 mh_class.destroy_folder = mh_folder_destroy;
 125                 mh_class.set_xml = folder_local_set_xml;
 126                 mh_class.get_xml = folder_local_get_xml;
 127                 mh_class.scan_tree = mh_scan_tree;
 128                 mh_class.create_tree = mh_create_tree;
 129
 130                 /* FolderItem functions */
 131                 mh_class.item_get_path = mh_item_get_path;
 132                 mh_class.create_folder = mh_create_folder;
 133                 mh_class.rename_folder = mh_rename_folder;
 134                 mh_class.remove_folder = mh_remove_folder;
 135                 mh_class.get_num_list = mh_get_num_list;
 136                 mh_class.scan_required = mh_scan_required;
 137
 138                 /* Message functions */
 139                 mh_class.get_msginfo = mh_get_msginfo;
 140                 mh_class.fetch_msg = mh_fetch_msg;
 141                 mh_class.add_msg = mh_add_msg;
 142                 mh_class.add_msgs = mh_add_msgs;
 143                 mh_class.copy_msg = mh_copy_msg;
 144                 mh_class.remove_msg = mh_remove_msg;
 145                 mh_class.remove_all_msg = mh_remove_all_msg;
 146                 mh_class.is_msg_changed = mh_is_msg_changed;
 147         }
 148
 149         return &mh_class;
 150 }
 151
 152 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 153 {
 154         Folder *folder;
 155
 156         folder = (Folder *)g_new0(MHFolder, 1);
 157         folder->klass = &mh_class;
 158         mh_folder_init(folder, name, path);
 159
 160         return folder;
 161 }
 162
 163 static void mh_folder_destroy(Folder *folder)
 164 {
 165         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 166 }
 167
 168 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 169 {
 170         folder_local_folder_init(folder, name, path);
 171
 172 }
 173
 174 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 175 {
 176         gchar *path;
 177         struct stat s;
 178
 179         path = folder_item_get_path(item);
 180         g_return_val_if_fail(path != NULL, FALSE);
 181
 182         if (stat(path, &s) < 0) {
 183                 FILE_OP_ERROR(path, "stat");
 184                 g_free(path);
 185                 return FALSE;
 186         }
 187
 188         if ((s.st_mtime > item->mtime) &&
 189                 (s.st_mtime - 3600 != item->mtime)) {
 190                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 191                             path,
 192                             s.st_mtime,
 193                             item->mtime);
 194                 g_free(path);
 195                 return TRUE;
 196         }
 197
 198         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 199                     path,
 200                     s.st_mtime,
 201                     item->mtime);
 202         g_free(path);
 203         return FALSE;
 204 }
 205
 206 void mh_get_last_num(Folder *folder, FolderItem *item)
 207 {
 208         gchar *path;
 209         DIR *dp;
 210         struct dirent *d;
 211         gint max = 0;
 212         gint num;
 213
 214         g_return_if_fail(item != NULL);
 215
 216         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 217
 218         path = folder_item_get_path(item);
 219         g_return_if_fail(path != NULL);
 220         if (change_dir(path) < 0) {
 221                 g_free(path);
 222                 return;
 223         }
 224         g_free(path);
 225
 226         if ((dp = opendir(".")) == NULL) {
 227                 FILE_OP_ERROR(item->path, "opendir");
 228                 return;
 229         }
 230
 231         while ((d = readdir(dp)) != NULL) {
 232                 if ((num = to_number(d->d_name)) > 0 &&
 233                     dirent_is_regular_file(d)) {
 234                         if (max < num)
 235                                 max = num;
 236                 }
 237         }
 238         closedir(dp);
 239
 240         debug_print("Last number in dir %s = %d\n", item->path, max);
 241         item->last_num = max;
 242 }
 243
 244 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 245 {
 246
 247         gchar *path;
 248         DIR *dp;
 249         struct dirent *d;
 250         gint num, nummsgs = 0;
 251
 252         g_return_val_if_fail(item != NULL, -1);
 253
 254         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path);
 255
 256         *old_uids_valid = TRUE;
 257
 258         path = folder_item_get_path(item);
 259         g_return_val_if_fail(path != NULL, -1);
 260         if (change_dir(path) < 0) {
 261                 g_free(path);
 262                 return -1;
 263         }
 264         g_free(path);
 265
 266         if ((dp = opendir(".")) == NULL) {
 267                 FILE_OP_ERROR(item->path, "opendir");
 268                 return -1;
 269         }
 270
 271         while ((d = readdir(dp)) != NULL) {
 272                 if ((num = to_number(d->d_name)) > 0) {
 273                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 274                         nummsgs++;
 275                 }
 276         }
 277         closedir(dp);
 278
 279         item->mtime = time(NULL);
 280         return nummsgs;
 281 }
 282
 283 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 284 {
 285         gchar *path;
 286         gchar *file;
 287
 288         g_return_val_if_fail(item != NULL, NULL);
 289         g_return_val_if_fail(num > 0, NULL);
 290
 291         path = folder_item_get_path(item);
 292         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 293
 294         if (!is_file_exist(file)) {
 295                 g_free(file);
 296                 g_free(path);
 297                 return NULL;
 298         }
 299         g_free(path);
 300         return file;
 301 }
 302
 303 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 304 {
 305         MsgInfo *msginfo;
 306         gchar *file;
 307
 308         g_return_val_if_fail(item != NULL, NULL);
 309         g_return_val_if_fail(num > 0, NULL);
 310
 311         file = mh_fetch_msg(folder, item, num);
 312         if (!file) return NULL;
 313
 314         msginfo = mh_parse_msg(file, item);
 315         if (msginfo)
 316                 msginfo->msgnum = num;
 317
 318         g_free(file);
 319
 320         return msginfo;
 321 }
 322
 323 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 324 {
 325         gchar *destfile;
 326         gchar *destpath;
 327
 328         destpath = folder_item_get_path(dest);
 329         g_return_val_if_fail(destpath != NULL, NULL);
 330
 331         if (!is_dir_exist(destpath))
 332                 make_dir_hier(destpath);
 333
 334         for (;;) {
 335                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 336                                            dest->last_num + 1);
 337                 if (is_file_entry_exist(destfile)) {
 338                         dest->last_num++;
 339                         g_free(destfile);
 340                 } else
 341                         break;
 342         }
 343
 344         g_free(destpath);
 345
 346         return destfile;
 347 }
 348
 349 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 350 {
 351         gint ret;
 352         GSList file_list;
 353         MsgFileInfo fileinfo;
 354
 355         g_return_val_if_fail(file != NULL, -1);
 356
 357         fileinfo.msginfo = NULL;
 358         fileinfo.file = (gchar *)file;
 359         fileinfo.flags = flags;
 360         file_list.data = &fileinfo;
 361         file_list.next = NULL;
 362
 363         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 364         return ret;
 365 }
 366
 367 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 368                  GRelation *relation)
 369 {
 370         gchar *destfile;
 371         GSList *cur;
 372         MsgFileInfo *fileinfo;
 373
 374         g_return_val_if_fail(dest != NULL, -1);
 375         g_return_val_if_fail(file_list != NULL, -1);
 376
 377         if (dest->last_num < 0) {
 378                 mh_get_last_num(folder, dest);
 379                 if (dest->last_num < 0) return -1;
 380         }
 381
 382         for (cur = file_list; cur != NULL; cur = cur->next) {
 383                 fileinfo = (MsgFileInfo *)cur->data;
 384
 385                 destfile = mh_get_new_msg_filename(dest);
 386                 if (destfile == NULL) return -1;
 387
 388                 if (link(fileinfo->file, destfile) < 0) {
 389                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 390                                 g_warning(_("can't copy message %s to %s\n"),
 391                                           fileinfo->file, destfile);
 392                                 g_free(destfile);
 393                                 return -1;
 394                         }
 395                 }
 396                 if (relation != NULL)
 397                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 398                 g_free(destfile);
 399                 dest->last_num++;
 400         }
 401
 402         return dest->last_num;
 403 }
 404
 405 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 406 {
 407         gboolean dest_need_scan = FALSE;
 408         gchar *srcfile;
 409         gchar *destfile;
 410         gint filemode = 0;
 411         FolderItemPrefs *prefs;
 412
 413         g_return_val_if_fail(dest != NULL, -1);
 414         g_return_val_if_fail(msginfo != NULL, -1);
 415
 416         if (msginfo->folder == dest) {
 417                 g_warning("the src folder is identical to the dest.\n");
 418                 return -1;
 419         }
 420
 421         if (dest->last_num < 0) {
 422                 mh_get_last_num(folder, dest);
 423                 if (dest->last_num < 0) return -1;
 424         }
 425
 426         prefs = dest->prefs;
 427
 428         srcfile = procmsg_get_message_file(msginfo);
 429         destfile = mh_get_new_msg_filename(dest);
 430         if (!destfile) {
 431                 g_free(srcfile);
 432                 return -1;
 433         }
 434
 435         debug_print("Copying message %s%c%d to %s ...\n",
 436                     msginfo->folder->path, G_DIR_SEPARATOR,
 437                     msginfo->msgnum, dest->path);
 438
 439
 440         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 441         &&  dest->stype != F_QUEUE && dest->stype != F_DRAFT) {
 442                 if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
 443                         g_free(srcfile);
 444                         g_free(destfile);
 445                         return -1;
 446                 }
 447         } else if (!(MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 448         && (dest->stype == F_QUEUE || dest->stype == F_DRAFT)) {
 449                 g_free(srcfile);
 450                 g_free(destfile);
 451                 return -1;
 452         } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 453                 FILE_OP_ERROR(srcfile, "copy");
 454                 g_free(srcfile);
 455                 g_free(destfile);
 456                 return -1;
 457         }
 458
 459         dest_need_scan = mh_scan_required(dest->folder, dest);
 460         if (!dest_need_scan)
 461                 dest->mtime = time(NULL);
 462
 463
 464         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 465                 if (chmod(destfile, prefs->folder_chmod) < 0)
 466                         FILE_OP_ERROR(destfile, "chmod");
 467
 468                 /* for mark file */
 469                 filemode = prefs->folder_chmod;
 470                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 471                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 472         }
 473
 474         g_free(srcfile);
 475         g_free(destfile);
 476         dest->last_num++;
 477
 478         return dest->last_num;
 479 }
 480
 481 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 482 {
 483         gboolean need_scan = FALSE;
 484         gchar *file;
 485
 486         g_return_val_if_fail(item != NULL, -1);
 487
 488         file = mh_fetch_msg(folder, item, num);
 489         g_return_val_if_fail(file != NULL, -1);
 490
 491         need_scan = mh_scan_required(folder, item);
 492
 493         if (unlink(file) < 0) {
 494                 FILE_OP_ERROR(file, "unlink");
 495                 g_free(file);
 496                 return -1;
 497         }
 498
 499         if (!need_scan)
 500                 item->mtime = time(NULL);
 501
 502         g_free(file);
 503         return 0;
 504 }
 505
 506 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 507 {
 508         gchar *path;
 509         gint val;
 510
 511         g_return_val_if_fail(item != NULL, -1);
 512
 513         path = folder_item_get_path(item);
 514         g_return_val_if_fail(path != NULL, -1);
 515         val = remove_all_numbered_files(path);
 516         g_free(path);
 517
 518         return val;
 519 }
 520
 521 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 522                                   MsgInfo *msginfo)
 523 {
 524         struct stat s;
 525
 526         if (stat(itos(msginfo->msgnum), &s) < 0 ||
 527             msginfo->size  != s.st_size || (
 528                 (msginfo->mtime - s.st_mtime != 0) &&
 529                 (msginfo->mtime - s.st_mtime != 3600) &&
 530                 (msginfo->mtime - s.st_mtime != -3600)))
 531                 return TRUE;
 532
 533         return FALSE;
 534 }
 535
 536 static gint mh_scan_tree(Folder *folder)
 537 {
 538         FolderItem *item;
 539         gchar *rootpath;
 540
 541         g_return_val_if_fail(folder != NULL, -1);
 542
 543         if (!folder->node) {
 544                 item = folder_item_new(folder, folder->name, NULL);
 545                 item->folder = folder;
 546                 folder->node = item->node = g_node_new(item);
 547         } else
 548                 item = FOLDER_ITEM(folder->node->data);
 549
 550         rootpath = folder_item_get_path(item);
 551         if (change_dir(rootpath) < 0) {
 552                 g_free(rootpath);
 553                 return -1;
 554         }
 555         g_free(rootpath);
 556
 557         mh_create_tree(folder);
 558         mh_remove_missing_folder_items(folder);
 559         mh_scan_tree_recursive(item);
 560
 561         return 0;
 562 }
 563
 564 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 565 { \
 566         if (!is_dir_exist(dir)) { \
 567                 if (is_file_exist(dir)) { \
 568                         g_warning("File `%s' already exists.\n" \
 569                                     "Can't create folder.", dir); \
 570                         return -1; \
 571                 } \
 572                 if (make_dir(dir) < 0) \
 573                         return -1; \
 574         } \
 575 }
 576
 577 static gint mh_create_tree(Folder *folder)
 578 {
 579         gchar *rootpath;
 580
 581         g_return_val_if_fail(folder != NULL, -1);
 582
 583         CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
 584         rootpath = LOCAL_FOLDER(folder)->rootpath;
 585         MAKE_DIR_IF_NOT_EXIST(rootpath);
 586         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 587         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 588         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 589         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 590         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 591         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 592
 593         return 0;
 594 }
 595
 596 #undef MAKE_DIR_IF_NOT_EXIST
 597
 598 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 599 {
 600         gchar *folder_path, *path;
 601         gchar *real_path;
 602         g_return_val_if_fail(folder != NULL, NULL);
 603         g_return_val_if_fail(item != NULL, NULL);
 604
 605         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 606         g_return_val_if_fail(folder_path != NULL, NULL);
 607
 608         if (folder_path[0] == G_DIR_SEPARATOR) {
 609                 if (item->path)
 610                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 611                                            item->path, NULL);
 612                 else
 613                         path = g_strdup(folder_path);
 614         } else {
 615                 if (item->path)
 616                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 617                                            folder_path, G_DIR_SEPARATOR_S,
 618                                            item->path, NULL);
 619                 else
 620                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 621                                            folder_path, NULL);
 622         }
 623         g_free(folder_path);
 624         real_path = mh_filename_from_utf8(path);
 625         g_free(path);
 626         return real_path;
 627 }
 628
 629 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 630                                     const gchar *name)
 631 {
 632         gchar *path, *real_name;
 633         gchar *fullpath;
 634         FolderItem *new_item;
 635         gchar *mh_sequences_filename;
 636         FILE *mh_sequences_file;
 637
 638         g_return_val_if_fail(folder != NULL, NULL);
 639         g_return_val_if_fail(parent != NULL, NULL);
 640         g_return_val_if_fail(name != NULL, NULL);
 641
 642         path = folder_item_get_path(parent);
 643         if (!is_dir_exist(path))
 644                 if (make_dir_hier(path) != 0)
 645                         return NULL;
 646
 647         real_name = mh_filename_from_utf8(name);
 648         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
 649         g_free(real_name);
 650         g_free(path);
 651
 652         if (make_dir(fullpath) < 0) {
 653                 g_free(fullpath);
 654                 return NULL;
 655         }
 656
 657         g_free(fullpath);
 658
 659         if (parent->path)
 660                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 661                                    NULL);
 662         else
 663                 path = g_strdup(name);
 664         new_item = folder_item_new(folder, name, path);
 665         folder_item_append(parent, new_item);
 666
 667         g_free(path);
 668
 669         path = folder_item_get_path(new_item);
 670         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 671                                             ".mh_sequences", NULL);
 672         if ((mh_sequences_file = fopen(mh_sequences_filename, "a+b")) != NULL) {
 673                 fclose(mh_sequences_file);
 674         }
 675         g_free(mh_sequences_filename);
 676         g_free(path);
 677
 678         return new_item;
 679 }
 680
 681 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 682                              const gchar *name)
 683 {
 684         gchar *real_name;
 685         gchar *oldpath;
 686         gchar *dirname;
 687         gchar *newpath, *utf8newpath;
 688         gchar *paths[2];
 689
 690         g_return_val_if_fail(folder != NULL, -1);
 691         g_return_val_if_fail(item != NULL, -1);
 692         g_return_val_if_fail(item->path != NULL, -1);
 693         g_return_val_if_fail(name != NULL, -1);
 694
 695         oldpath = folder_item_get_path(item);
 696         if (!is_dir_exist(oldpath))
 697                 make_dir_hier(oldpath);
 698
 699         dirname = g_path_get_dirname(oldpath);
 700         real_name = mh_filename_from_utf8(name);
 701         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
 702         g_free(real_name);
 703
 704         if (rename(oldpath, newpath) < 0) {
 705                 FILE_OP_ERROR(oldpath, "rename");
 706                 g_free(oldpath);
 707                 g_free(newpath);
 708                 return -1;
 709         }
 710
 711         g_free(oldpath);
 712         g_free(newpath);
 713
 714         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 715                 dirname = g_path_get_dirname(item->path);
 716                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
 717                                           name, NULL);
 718                 g_free(dirname);
 719         } else
 720                 utf8newpath = g_strdup(name);
 721
 722         g_free(item->name);
 723         item->name = g_strdup(name);
 724
 725         paths[0] = g_strdup(item->path);
 726         paths[1] = utf8newpath;
 727         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 728                         mh_rename_folder_func, paths);
 729
 730         g_free(paths[0]);
 731         g_free(paths[1]);
 732         return 0;
 733 }
 734
 735 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 736 {
 737         gchar *path;
 738
 739         g_return_val_if_fail(folder != NULL, -1);
 740         g_return_val_if_fail(item != NULL, -1);
 741         g_return_val_if_fail(item->path != NULL, -1);
 742
 743         path = folder_item_get_path(item);
 744         if (remove_dir_recursive(path) < 0) {
 745                 g_warning("can't remove directory `%s'\n", path);
 746                 g_free(path);
 747                 return -1;
 748         }
 749
 750         g_free(path);
 751         folder_item_remove(item);
 752         return 0;
 753 }
 754
 755 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 756 {
 757         MsgInfo *msginfo;
 758         MsgFlags flags;
 759
 760         g_return_val_if_fail(item != NULL, NULL);
 761         g_return_val_if_fail(file != NULL, NULL);
 762
 763         flags.perm_flags = MSG_NEW|MSG_UNREAD;
 764         flags.tmp_flags = 0;
 765
 766         if (item->stype == F_QUEUE) {
 767                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
 768         } else if (item->stype == F_DRAFT) {
 769                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
 770         }
 771
 772         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
 773         if (!msginfo) return NULL;
 774
 775         msginfo->msgnum = atoi(file);
 776         msginfo->folder = item;
 777
 778         return msginfo;
 779 }
 780
 781 #if 0
 782 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
 783 {
 784         gchar *entry;
 785         gboolean result;
 786
 787         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
 788         result = is_dir_exist(entry);
 789         g_free(entry);
 790
 791         return result;
 792 }
 793
 794 /*
 795  * check whether PATH is a Maildir style mailbox.
 796  * This is the case if the 3 subdir: new, cur, tmp are existing.
 797  * This functon assumes that entry is an directory
 798  */
 799 static gboolean mh_is_maildir(const gchar *path)
 800 {
 801         return mh_is_maildir_one(path, "new") &&
 802                mh_is_maildir_one(path, "cur") &&
 803                mh_is_maildir_one(path, "tmp");
 804 }
 805 #endif
 806
 807 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
 808 {
 809         FolderItem *item;
 810         gchar *path;
 811
 812         g_return_val_if_fail(node->data != NULL, FALSE);
 813
 814         if (G_NODE_IS_ROOT(node))
 815                 return FALSE;
 816
 817         item = FOLDER_ITEM(node->data);
 818
 819         path = folder_item_get_path(item);
 820         if (!is_dir_exist(path)) {
 821                 debug_print("folder '%s' not found. removing...\n", path);
 822                 folder_item_remove(item);
 823         }
 824         g_free(path);
 825
 826         return FALSE;
 827 }
 828
 829 static void mh_remove_missing_folder_items(Folder *folder)
 830 {
 831         g_return_if_fail(folder != NULL);
 832
 833         debug_print("searching missing folders...\n");
 834
 835         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 836                         mh_remove_missing_folder_items_func, folder);
 837 }
 838
 839 static void mh_scan_tree_recursive(FolderItem *item)
 840 {
 841         Folder *folder;
 842         DIR *dp;
 843         struct dirent *d;
 844         struct stat s;
 845         gchar *real_path, *entry, *utf8entry, *utf8name;
 846         gint n_msg = 0;
 847
 848         g_return_if_fail(item != NULL);
 849         g_return_if_fail(item->folder != NULL);
 850
 851         folder = item->folder;
 852
 853         real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
 854         dp = opendir(real_path);
 855         if (!dp) {
 856                 FILE_OP_ERROR(real_path, "opendir");
 857                 return;
 858         }
 859         g_free(real_path);
 860
 861         debug_print("scanning %s ...\n",
 862                     item->path ? item->path
 863                     : LOCAL_FOLDER(item->folder)->rootpath);
 864         if (folder->ui_func)
 865                 folder->ui_func(folder, item, folder->ui_func_data);
 866
 867         while ((d = readdir(dp)) != NULL) {
 868                 if (d->d_name[0] == '.') continue;
 869
 870                 utf8name = mh_filename_to_utf8(d->d_name);
 871                 if (item->path)
 872                         utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
 873                                                 utf8name, NULL);
 874                 else
 875                         utf8entry = g_strdup(utf8name);
 876                 entry = mh_filename_from_utf8(utf8entry);
 877
 878                 if (
 879 #ifdef HAVE_DIRENT_D_TYPE
 880                         d->d_type == DT_DIR ||
 881                         (d->d_type == DT_UNKNOWN &&
 882 #endif
 883                         stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
 884 #ifdef HAVE_DIRENT_D_TYPE
 885                         )
 886 #endif
 887                    ) {
 888                         FolderItem *new_item = NULL;
 889                         GNode *node;
 890
 891 #if 0
 892                         if (mh_is_maildir(entry)) {
 893                                 g_free(entry);
 894                                 g_free(utf8entry);
 895                                 g_free(utf8name);
 896                                 continue;
 897                         }
 898 #endif
 899
 900                         node = item->node;
 901                         for (node = node->children; node != NULL; node = node->next) {
 902                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
 903                                 if (!strcmp2(cur_item->path, entry)) {
 904                                         new_item = cur_item;
 905                                         break;
 906                                 }
 907                         }
 908                         if (!new_item) {
 909                                 debug_print("new folder '%s' found.\n", entry);
 910                                 new_item = folder_item_new(folder, utf8name, utf8entry);
 911                                 folder_item_append(item, new_item);
 912                         }
 913
 914                         if (!item->path) {
 915                                 if (!folder->inbox &&
 916                                     !strcmp(d->d_name, INBOX_DIR)) {
 917                                         new_item->stype = F_INBOX;
 918                                         folder->inbox = new_item;
 919                                 } else if (!folder->outbox &&
 920                                            !strcmp(d->d_name, OUTBOX_DIR)) {
 921                                         new_item->stype = F_OUTBOX;
 922                                         folder->outbox = new_item;
 923                                 } else if (!folder->draft &&
 924                                            !strcmp(d->d_name, DRAFT_DIR)) {
 925                                         new_item->stype = F_DRAFT;
 926                                         folder->draft = new_item;
 927                                 } else if (!folder->queue &&
 928                                            !strcmp(d->d_name, QUEUE_DIR)) {
 929                                         new_item->stype = F_QUEUE;
 930                                         folder->queue = new_item;
 931                                 } else if (!folder->trash &&
 932                                            !strcmp(d->d_name, TRASH_DIR)) {
 933                                         new_item->stype = F_TRASH;
 934                                         folder->trash = new_item;
 935                                 }
 936                         }
 937
 938                         mh_scan_tree_recursive(new_item);
 939                 } else if (to_number(d->d_name) != -1) n_msg++;
 940
 941                 g_free(entry);
 942                 g_free(utf8entry);
 943                 g_free(utf8name);
 944         }
 945
 946         closedir(dp);
 947
 948         item->mtime = time(NULL);
 949
 950 /*
 951         if (item->path) {
 952                 gint new, unread, total, min, max;
 953
 954                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
 955                                      &min, &max, 0);
 956                 if (n_msg > total) {
 957                         new += n_msg - total;
 958                         unread += n_msg - total;
 959                 }
 960                 item->new = new;
 961                 item->unread = unread;
 962                 item->total = n_msg;
 963         }
 964 */
 965 }
 966
 967 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
 968 {
 969         FolderItem *item = node->data;
 970         gchar **paths = data;
 971         const gchar *oldpath = paths[0];
 972         const gchar *newpath = paths[1];
 973         gchar *base;
 974         gchar *new_itempath;
 975         gint oldpathlen;
 976
 977         oldpathlen = strlen(oldpath);
 978         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
 979                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
 980                 return TRUE;
 981         }
 982
 983         base = item->path + oldpathlen;
 984         while (*base == G_DIR_SEPARATOR) base++;
 985         if (*base == '\0')
 986                 new_itempath = g_strdup(newpath);
 987         else
 988                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
 989                                            NULL);
 990         g_free(item->path);
 991         item->path = new_itempath;
 992
 993         return FALSE;
 994 }
 995
 996 static gchar *mh_filename_from_utf8(const gchar *path)
 997 {
 998         gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
 999
1000         if (!real_path) {
1001                 g_warning("mh_filename_from_utf8: faild to convert character set\n");
1002                 real_path = g_strdup(path);
1003         }
1004
1005         return real_path;
1006 }
1007
1008 static gchar *mh_filename_to_utf8(const gchar *path)
1009 {
1010         gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
1011         if (!utf8path) {
1012                 g_warning("mh_filename_to_utf8: faild to convert character set\n");
1013                 utf8path = g_strdup(path);
1014         }
1015
1016         return utf8path;
1017 }