src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include "defs.h"
  26
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <dirent.h>
  30 #include <sys/stat.h>
  31 #include <unistd.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <time.h>
  35
  36 #include "folder.h"
  37 #include "folder_item_prefs.h"
  38 #include "mh.h"
  39 #include "procmsg.h"
  40 #include "procheader.h"
  41 #include "utils.h"
  42 #include "codeconv.h"
  43 #include "statusbar.h"
  44 #include "gtkutils.h"
  45 #include "timing.h"
  46
  47 /* Define possible missing constants for Windows. */
  48 #ifdef G_OS_WIN32
  49 # ifndef S_IRGRP
  50 # define S_IRGRP 0
  51 # define S_IWGRP 0
  52 # endif
  53 # ifndef S_IROTH
  54 # define S_IROTH 0
  55 # define S_IWOTH 0
  56 # endif
  57 #endif
  58
  59
  60 static void     mh_folder_init          (Folder         *folder,
  61                                          const gchar    *name,
  62                                          const gchar    *path);
  63
  64 static Folder   *mh_folder_new          (const gchar    *name,
  65                                          const gchar    *path);
  66 static void     mh_folder_destroy       (Folder         *folder);
  67 static gchar   *mh_fetch_msg            (Folder         *folder,
  68                                          FolderItem     *item,
  69                                          gint            num);
  70 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  71                                          FolderItem     *item,
  72                                          gint            num);
  73 static gint     mh_add_msg              (Folder         *folder,
  74                                          FolderItem     *dest,
  75                                          const gchar    *file,
  76                                          MsgFlags       *flags);
  77 static gint     mh_add_msgs             (Folder         *folder,
  78                                          FolderItem     *dest,
  79                                          GSList         *file_list,
  80                                          GHashTable     *relation);
  81 static gint     mh_copy_msg             (Folder         *folder,
  82                                          FolderItem     *dest,
  83                                          MsgInfo        *msginfo);
  84 static gint     mh_copy_msgs            (Folder         *folder,
  85                                          FolderItem     *dest,
  86                                          MsgInfoList    *msglist,
  87                                          GHashTable     *relation);
  88 static gint     mh_remove_msg           (Folder         *folder,
  89                                          FolderItem     *item,
  90                                          gint            num);
  91 static gint     mh_remove_msgs          (Folder         *folder,
  92                                          FolderItem     *item,
  93                                          MsgInfoList    *msglist,
  94                                          GHashTable     *relation);
  95 static gint     mh_remove_all_msg       (Folder         *folder,
  96                                          FolderItem     *item);
  97 static gboolean mh_is_msg_changed       (Folder         *folder,
  98                                          FolderItem     *item,
  99                                          MsgInfo        *msginfo);
 100
 101 static gint     mh_get_num_list         (Folder         *folder,
 102                                          FolderItem     *item,
 103                                          GSList         **list,
 104                                          gboolean       *old_uids_valid);
 105 static gint     mh_scan_tree            (Folder         *folder);
 106
 107 static gint    mh_create_tree           (Folder         *folder);
 108 static FolderItem *mh_create_folder     (Folder         *folder,
 109                                          FolderItem     *parent,
 110                                          const gchar    *name);
 111 static gint    mh_rename_folder         (Folder         *folder,
 112                                          FolderItem     *item,
 113                                          const gchar    *name);
 114 static gint    mh_remove_folder         (Folder         *folder,
 115                                          FolderItem     *item);
 116
 117 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
 118
 119 static MsgInfo *mh_parse_msg                    (const gchar    *file,
 120                                                  FolderItem     *item);
 121 static void     mh_remove_missing_folder_items  (Folder         *folder);
 122 static gchar    *mh_filename_from_utf8          (const gchar    *path);
 123 static gchar    *mh_filename_to_utf8            (const gchar    *path);
 124 static void     mh_scan_tree_recursive          (FolderItem     *item);
 125
 126 static gboolean mh_rename_folder_func           (GNode          *node,
 127                                                  gpointer        data);
 128 static gchar   *mh_item_get_path                (Folder *folder,
 129                                                  FolderItem *item);
 130
 131 static gboolean mh_scan_required        (Folder         *folder,
 132                                          FolderItem     *item);
 133 static void mh_set_mtime                (Folder         *folder,
 134                                          FolderItem *item);
 135 static int mh_item_close                (Folder         *folder,
 136                                          FolderItem     *item);
 137 #if 0
 138 static gint mh_get_flags                (Folder *folder, FolderItem *item,
 139                                          MsgInfoList *msginfo_list, GHashTable *msgflags);
 140 #endif
 141 static void mh_write_sequences          (FolderItem     *item, gboolean remove_unseen);
 142
 143 static FolderClass mh_class;
 144
 145 FolderClass *mh_get_class(void)
 146 {
 147         if (mh_class.idstr == NULL) {
 148                 mh_class.type = F_MH;
 149                 mh_class.idstr = "mh";
 150                 mh_class.uistr = "MH";
 151
 152                 /* Folder functions */
 153                 mh_class.new_folder = mh_folder_new;
 154                 mh_class.destroy_folder = mh_folder_destroy;
 155                 mh_class.set_xml = folder_local_set_xml;
 156                 mh_class.get_xml = folder_local_get_xml;
 157                 mh_class.scan_tree = mh_scan_tree;
 158                 mh_class.create_tree = mh_create_tree;
 159
 160                 /* FolderItem functions */
 161                 mh_class.item_get_path = mh_item_get_path;
 162                 mh_class.create_folder = mh_create_folder;
 163                 mh_class.rename_folder = mh_rename_folder;
 164                 mh_class.remove_folder = mh_remove_folder;
 165                 mh_class.get_num_list = mh_get_num_list;
 166                 mh_class.scan_required = mh_scan_required;
 167                 mh_class.set_mtime = mh_set_mtime;
 168                 mh_class.close = mh_item_close;
 169                 mh_class.get_flags = NULL; /*mh_get_flags */;
 170
 171                 /* Message functions */
 172                 mh_class.get_msginfo = mh_get_msginfo;
 173                 mh_class.fetch_msg = mh_fetch_msg;
 174                 mh_class.add_msg = mh_add_msg;
 175                 mh_class.add_msgs = mh_add_msgs;
 176                 mh_class.copy_msg = mh_copy_msg;
 177                 mh_class.copy_msgs = mh_copy_msgs;
 178                 mh_class.remove_msg = mh_remove_msg;
 179                 mh_class.remove_msgs = mh_remove_msgs;
 180                 mh_class.remove_all_msg = mh_remove_all_msg;
 181                 mh_class.is_msg_changed = mh_is_msg_changed;
 182         }
 183
 184         return &mh_class;
 185 }
 186
 187 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 188 {
 189         Folder *folder;
 190
 191         folder = (Folder *)g_new0(MHFolder, 1);
 192         folder->klass = &mh_class;
 193         mh_folder_init(folder, name, path);
 194
 195         return folder;
 196 }
 197
 198 static void mh_folder_destroy(Folder *folder)
 199 {
 200         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 201 }
 202
 203 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 204 {
 205         folder_local_folder_init(folder, name, path);
 206
 207 }
 208
 209 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 210 {
 211         gchar *path;
 212         struct stat s;
 213
 214         path = folder_item_get_path(item);
 215         cm_return_val_if_fail(path != NULL, FALSE);
 216
 217         if (g_stat(path, &s) < 0) {
 218                 FILE_OP_ERROR(path, "stat");
 219                 g_free(path);
 220                 return FALSE;
 221         }
 222
 223         if ((s.st_mtime > item->mtime) &&
 224                 (s.st_mtime - 3600 != item->mtime)) {
 225                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 226                             path?path:"(null)",
 227                             (long int) s.st_mtime,
 228                             (long int) item->mtime);
 229                 g_free(path);
 230                 return TRUE;
 231         }
 232
 233         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 234                     path?path:"(null)",
 235                     (long int) s.st_mtime,
 236                     (long int) item->mtime);
 237         g_free(path);
 238         return FALSE;
 239 }
 240
 241 static void mh_get_last_num(Folder *folder, FolderItem *item)
 242 {
 243         gchar *path;
 244         DIR *dp;
 245         struct dirent *d;
 246         gint max = 0;
 247         gint num;
 248
 249         cm_return_if_fail(item != NULL);
 250
 251         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path?item->path:"(null)");
 252
 253         path = folder_item_get_path(item);
 254         cm_return_if_fail(path != NULL);
 255         if (change_dir(path) < 0) {
 256                 g_free(path);
 257                 return;
 258         }
 259         g_free(path);
 260
 261         if ((dp = opendir(".")) == NULL) {
 262                 FILE_OP_ERROR(item->path, "opendir");
 263                 return;
 264         }
 265
 266         while ((d = readdir(dp)) != NULL) {
 267                 if ((num = to_number(d->d_name)) > 0 &&
 268                     dirent_is_regular_file(d)) {
 269                         if (max < num)
 270                                 max = num;
 271                 }
 272                 if (num % 2000 == 0)
 273                         GTK_EVENTS_FLUSH();
 274         }
 275         closedir(dp);
 276
 277         debug_print("Last number in dir %s = %d\n", item->path?item->path:"(null)", max);
 278         item->last_num = max;
 279 }
 280
 281 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 282 {
 283
 284         gchar *path;
 285         DIR *dp;
 286         struct dirent *d;
 287         gint num, nummsgs = 0;
 288
 289         cm_return_val_if_fail(item != NULL, -1);
 290
 291         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path?item->path:"(null)");
 292
 293         *old_uids_valid = TRUE;
 294
 295         path = folder_item_get_path(item);
 296         cm_return_val_if_fail(path != NULL, -1);
 297         if (change_dir(path) < 0) {
 298                 g_free(path);
 299                 return -1;
 300         }
 301         g_free(path);
 302
 303         if ((dp = opendir(".")) == NULL) {
 304                 FILE_OP_ERROR(item->path, "opendir");
 305                 return -1;
 306         }
 307
 308         while ((d = readdir(dp)) != NULL) {
 309                 if ((num = to_number(d->d_name)) > 0) {
 310                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 311                         nummsgs++;
 312                 }
 313         }
 314         closedir(dp);
 315
 316         mh_set_mtime(folder, item);
 317         return nummsgs;
 318 }
 319
 320 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 321 {
 322         gchar *path;
 323         gchar *file;
 324
 325         cm_return_val_if_fail(item != NULL, NULL);
 326         cm_return_val_if_fail(num > 0, NULL);
 327
 328         path = folder_item_get_path(item);
 329         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 330
 331         if (!is_file_exist(file)) {
 332                 g_free(file);
 333                 g_free(path);
 334                 return NULL;
 335         }
 336         g_free(path);
 337         return file;
 338 }
 339
 340 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 341 {
 342         MsgInfo *msginfo;
 343         gchar *file;
 344
 345         cm_return_val_if_fail(item != NULL, NULL);
 346         if (num <= 0)
 347                 return NULL;
 348
 349         file = mh_fetch_msg(folder, item, num);
 350         if (!file) return NULL;
 351
 352         msginfo = mh_parse_msg(file, item);
 353         if (msginfo)
 354                 msginfo->msgnum = num;
 355
 356         g_free(file);
 357
 358         return msginfo;
 359 }
 360
 361 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 362 {
 363         gchar *destfile;
 364         gchar *destpath;
 365
 366         destpath = folder_item_get_path(dest);
 367         cm_return_val_if_fail(destpath != NULL, NULL);
 368
 369         if (!is_dir_exist(destpath))
 370                 make_dir_hier(destpath);
 371
 372         for (;;) {
 373                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 374                                            dest->last_num + 1);
 375                 if (is_file_entry_exist(destfile)) {
 376                         dest->last_num++;
 377                         g_free(destfile);
 378                 } else
 379                         break;
 380         }
 381
 382         g_free(destpath);
 383
 384         return destfile;
 385 }
 386
 387 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 388 {
 389         gint ret;
 390         GSList file_list;
 391         MsgFileInfo fileinfo;
 392
 393         cm_return_val_if_fail(file != NULL, -1);
 394
 395         fileinfo.msginfo = NULL;
 396         fileinfo.file = (gchar *)file;
 397         fileinfo.flags = flags;
 398         file_list.data = &fileinfo;
 399         file_list.next = NULL;
 400
 401         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 402         return ret;
 403 }
 404
 405 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 406                  GHashTable *relation)
 407 {
 408         gchar *destfile;
 409         GSList *cur;
 410         MsgFileInfo *fileinfo;
 411
 412         cm_return_val_if_fail(dest != NULL, -1);
 413         cm_return_val_if_fail(file_list != NULL, -1);
 414
 415         if (dest->last_num < 0) {
 416                 mh_get_last_num(folder, dest);
 417                 if (dest->last_num < 0) return -1;
 418         }
 419
 420         for (cur = file_list; cur != NULL; cur = cur->next) {
 421                 fileinfo = (MsgFileInfo *)cur->data;
 422
 423                 destfile = mh_get_new_msg_filename(dest);
 424                 if (destfile == NULL) return -1;
 425
 426 #ifdef G_OS_UNIX
 427                 if (link(fileinfo->file, destfile) < 0) {
 428 #endif
 429                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 430                                 g_warning(_("can't copy message %s to %s\n"),
 431                                           fileinfo->file, destfile);
 432                                 g_free(destfile);
 433                                 return -1;
 434                         }
 435 #ifdef G_OS_UNIX
 436                 }
 437 #endif
 438
 439                 if (relation != NULL)
 440                         g_hash_table_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 441                 g_free(destfile);
 442                 dest->last_num++;
 443         }
 444         mh_write_sequences(dest, TRUE);
 445         return dest->last_num;
 446 }
 447
 448 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 449 {
 450         GSList msglist;
 451
 452         cm_return_val_if_fail(msginfo != NULL, -1);
 453
 454         msglist.data = msginfo;
 455         msglist.next = NULL;
 456
 457         return mh_copy_msgs(folder, dest, &msglist, NULL);
 458 }
 459
 460 static gint mh_copy_msgs(Folder *folder, FolderItem *dest, MsgInfoList *msglist,
 461                          GHashTable *relation)
 462 {
 463         gboolean dest_need_scan = FALSE;
 464         gboolean src_need_scan = FALSE;
 465         FolderItem *src = NULL;
 466         gchar *srcfile;
 467         gchar *destfile;
 468         FolderItemPrefs *prefs;
 469         MsgInfo *msginfo = NULL;
 470         MsgInfoList *cur = NULL;
 471         gint curnum = 0, total = 0;
 472         gchar *srcpath = NULL;
 473         gboolean full_fetch = FALSE;
 474         time_t last_dest_mtime = (time_t)0;
 475         time_t last_src_mtime = (time_t)0;
 476
 477         cm_return_val_if_fail(dest != NULL, -1);
 478         cm_return_val_if_fail(msglist != NULL, -1);
 479
 480         msginfo = (MsgInfo *)msglist->data;
 481
 482         cm_return_val_if_fail(msginfo != NULL, -1);
 483
 484         if (msginfo->folder == dest) {
 485                 g_warning("the src folder is identical to the dest.\n");
 486                 return -1;
 487         }
 488
 489         if (msginfo->folder->folder != dest->folder)
 490                 full_fetch = TRUE;
 491
 492         if (FOLDER_TYPE(msginfo->folder->folder) == F_MH) {
 493                 src = msginfo->folder;
 494         }
 495
 496         if (dest->last_num < 0) {
 497                 mh_get_last_num(folder, dest);
 498                 if (dest->last_num < 0) return -1;
 499         }
 500
 501         prefs = dest->prefs;
 502
 503         srcpath = folder_item_get_path(msginfo->folder);
 504
 505         dest_need_scan = mh_scan_required(dest->folder, dest);
 506         last_dest_mtime = dest->mtime;
 507
 508         if (src) {
 509                 src_need_scan = mh_scan_required(src->folder, src);
 510                 last_src_mtime = src->mtime;
 511         }
 512
 513         total = g_slist_length(msglist);
 514         if (total > 100) {
 515                 if (MSG_IS_MOVE(msginfo->flags))
 516                         statusbar_print_all(_("Moving messages..."));
 517                 else
 518                         statusbar_print_all(_("Copying messages..."));
 519         }
 520         for (cur = msglist; cur; cur = cur->next) {
 521                 msginfo = (MsgInfo *)cur->data;
 522                 if (!msginfo) {
 523                         goto err_reset_status;
 524                 }
 525                 if (!full_fetch) {
 526                         srcfile = g_strconcat(srcpath,
 527                                 G_DIR_SEPARATOR_S,
 528                                 itos(msginfo->msgnum), NULL);
 529                 } else {
 530                         srcfile = procmsg_get_message_file(msginfo);
 531                 }
 532                 if (!srcfile) {
 533                         goto err_reset_status;
 534                 }
 535                 destfile = mh_get_new_msg_filename(dest);
 536                 if (!destfile) {
 537                         g_free(srcfile);
 538                         goto err_reset_status;
 539                 }
 540
 541                 if (total > 100) {
 542                         statusbar_progress_all(curnum, total, 100);
 543                         if (curnum % 100 == 0)
 544                                 GTK_EVENTS_FLUSH();
 545                         curnum++;
 546                 }
 547
 548                 debug_print("Copying message %s%c%d to %s ...\n",
 549                             msginfo->folder->path, G_DIR_SEPARATOR,
 550                             msginfo->msgnum, dest->path);
 551
 552
 553                 if (MSG_IS_MOVE(msginfo->flags)) {
 554                         msginfo->flags.tmp_flags &= ~MSG_MOVE_DONE;
 555                         if (move_file(srcfile, destfile, TRUE) < 0) {
 556                                 FILE_OP_ERROR(srcfile, "move");
 557                                 if (copy_file(srcfile, destfile, TRUE) < 0) {
 558                                         FILE_OP_ERROR(srcfile, "copy");
 559                                         g_free(srcfile);
 560                                         g_free(destfile);
 561                                         goto err_reset_status;
 562                                 }
 563                         } else {
 564                                 /* say unlinking's not necessary */
 565                                 msginfo->flags.tmp_flags |= MSG_MOVE_DONE;
 566                         }
 567                 } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 568                         FILE_OP_ERROR(srcfile, "copy");
 569                         g_free(srcfile);
 570                         g_free(destfile);
 571                         goto err_reset_status;
 572                 }
 573                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 574                         if (chmod(destfile, prefs->folder_chmod) < 0)
 575                                 FILE_OP_ERROR(destfile, "chmod");
 576                 }
 577                 if (relation) {
 578                         if (g_hash_table_lookup(relation, msginfo) != NULL)
 579                                 g_warning("already in : %p", msginfo);
 580
 581                         g_hash_table_insert(relation, msginfo, GINT_TO_POINTER(dest->last_num+1));
 582                 }
 583                 g_free(srcfile);
 584                 g_free(destfile);
 585                 dest->last_num++;
 586         }
 587
 588         g_free(srcpath);
 589         mh_write_sequences(dest, TRUE);
 590
 591         if (dest->mtime == last_dest_mtime && !dest_need_scan) {
 592                 mh_set_mtime(folder, dest);
 593         }
 594
 595         if (src && src->mtime == last_src_mtime && !src_need_scan) {
 596                 mh_set_mtime(folder, src);
 597         }
 598
 599         if (total > 100) {
 600                 statusbar_progress_all(0,0,0);
 601                 statusbar_pop_all();
 602         }
 603         return dest->last_num;
 604 err_reset_status:
 605         g_free(srcpath);
 606         mh_write_sequences(dest, TRUE);
 607         if (total > 100) {
 608                 statusbar_progress_all(0,0,0);
 609                 statusbar_pop_all();
 610         }
 611         return -1;
 612
 613 }
 614
 615 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 616 {
 617         gboolean need_scan = FALSE;
 618         time_t last_mtime = (time_t)0;
 619         gchar *file;
 620
 621         cm_return_val_if_fail(item != NULL, -1);
 622
 623         file = mh_fetch_msg(folder, item, num);
 624         cm_return_val_if_fail(file != NULL, -1);
 625
 626         need_scan = mh_scan_required(folder, item);
 627         last_mtime = item->mtime;
 628
 629         if (claws_unlink(file) < 0) {
 630                 FILE_OP_ERROR(file, "unlink");
 631                 g_free(file);
 632                 return -1;
 633         }
 634
 635         if (item->mtime == last_mtime && !need_scan) {
 636                 mh_set_mtime(folder, item);
 637         }
 638         g_free(file);
 639         return 0;
 640 }
 641
 642 static gint mh_remove_msgs(Folder *folder, FolderItem *item,
 643                     MsgInfoList *msglist, GHashTable *relation)
 644 {
 645         gboolean need_scan = FALSE;
 646         gchar *path, *file;
 647         time_t last_mtime = (time_t)0;
 648         MsgInfoList *cur;
 649         gint total = 0, curnum = 0;
 650
 651         cm_return_val_if_fail(item != NULL, -1);
 652
 653         path = folder_item_get_path(item);
 654
 655         need_scan = mh_scan_required(folder, item);
 656         last_mtime = item->mtime;
 657
 658         total = g_slist_length(msglist);
 659         if (total > 100) {
 660                 statusbar_print_all(_("Deleting messages..."));
 661         }
 662
 663         for (cur = msglist; cur; cur = cur->next) {
 664                 MsgInfo *msginfo = (MsgInfo *)cur->data;
 665                 if (msginfo == NULL)
 666                         continue;
 667                 if (MSG_IS_MOVE(msginfo->flags) && MSG_IS_MOVE_DONE(msginfo->flags)) {
 668                         msginfo->flags.tmp_flags &= ~MSG_MOVE_DONE;
 669                         continue;
 670                 }
 671                 if (total > 100) {
 672                         statusbar_progress_all(curnum, total, 100);
 673                         if (curnum % 100 == 0)
 674                                 GTK_EVENTS_FLUSH();
 675                         curnum++;
 676                 }
 677
 678                 file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 679                 if (file == NULL)
 680                         continue;
 681
 682                 if (claws_unlink(file) < 0) {
 683                         g_free(file);
 684                         continue;
 685                 }
 686
 687                 g_free(file);
 688         }
 689
 690         if (total > 100) {
 691                 statusbar_progress_all(0,0,0);
 692                 statusbar_pop_all();
 693         }
 694         if (item->mtime == last_mtime && !need_scan) {
 695                 mh_set_mtime(folder, item);
 696         }
 697
 698         g_free(path);
 699         return 0;
 700 }
 701
 702 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 703 {
 704         gchar *path;
 705         gint val;
 706
 707         cm_return_val_if_fail(item != NULL, -1);
 708
 709         path = folder_item_get_path(item);
 710         cm_return_val_if_fail(path != NULL, -1);
 711         val = remove_all_numbered_files(path);
 712         g_free(path);
 713
 714         mh_write_sequences(item, TRUE);
 715
 716         return val;
 717 }
 718
 719 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 720                                   MsgInfo *msginfo)
 721 {
 722         struct stat s;
 723
 724         if (g_stat(itos(msginfo->msgnum), &s) < 0 ||
 725             msginfo->size  != s.st_size || (
 726                 (msginfo->mtime - s.st_mtime != 0) &&
 727                 (msginfo->mtime - s.st_mtime != 3600) &&
 728                 (msginfo->mtime - s.st_mtime != -3600)))
 729                 return TRUE;
 730
 731         return FALSE;
 732 }
 733
 734 static gint mh_scan_tree(Folder *folder)
 735 {
 736         FolderItem *item;
 737         gchar *rootpath;
 738
 739         cm_return_val_if_fail(folder != NULL, -1);
 740
 741         if (!folder->node) {
 742                 item = folder_item_new(folder, folder->name, NULL);
 743                 item->folder = folder;
 744                 folder->node = item->node = g_node_new(item);
 745         } else
 746                 item = FOLDER_ITEM(folder->node->data);
 747
 748         rootpath = folder_item_get_path(item);
 749         if (change_dir(rootpath) < 0) {
 750                 g_free(rootpath);
 751                 return -1;
 752         }
 753         g_free(rootpath);
 754
 755         mh_create_tree(folder);
 756         mh_remove_missing_folder_items(folder);
 757         mh_scan_tree_recursive(item);
 758
 759         return 0;
 760 }
 761
 762 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 763 { \
 764         if (!is_dir_exist(dir)) { \
 765                 if (is_file_exist(dir)) { \
 766                         g_warning("File `%s' already exists.\n" \
 767                                     "Can't create folder.", dir); \
 768                         return -1; \
 769                 } \
 770                 if (make_dir_hier(dir) < 0) \
 771                         return -1; \
 772         } \
 773 }
 774
 775 static gint mh_create_tree(Folder *folder)
 776 {
 777         gchar *rootpath, *f;
 778
 779         cm_return_val_if_fail(folder != NULL, -1);
 780
 781         CHDIR_RETURN_VAL_IF_FAIL(get_mail_base_dir(), -1);
 782         rootpath = LOCAL_FOLDER(folder)->rootpath;
 783         MAKE_DIR_IF_NOT_EXIST(rootpath);
 784         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 785
 786         /* Create special directories as needed */
 787         if (folder->inbox != NULL &&
 788                         folder->inbox->path != NULL)
 789                 f = folder->inbox->path;
 790         else
 791                 f = INBOX_DIR;
 792         MAKE_DIR_IF_NOT_EXIST(f);
 793
 794         if (folder->outbox != NULL &&
 795                         folder->outbox->path != NULL)
 796                 f = folder->outbox->path;
 797         else
 798                 f = OUTBOX_DIR;
 799         MAKE_DIR_IF_NOT_EXIST(f);
 800
 801         if (folder->draft != NULL &&
 802                         folder->draft->path != NULL)
 803                 f = folder->draft->path;
 804         else
 805                 f = DRAFT_DIR;
 806         MAKE_DIR_IF_NOT_EXIST(f);
 807
 808         if (folder->queue != NULL &&
 809                         folder->queue->path != NULL)
 810                 f = folder->queue->path;
 811         else
 812                 f = QUEUE_DIR;
 813         MAKE_DIR_IF_NOT_EXIST(f);
 814
 815         if (folder->trash != NULL &&
 816                         folder->trash->path != NULL)
 817                 f = folder->trash->path;
 818         else
 819                 f = TRASH_DIR;
 820         MAKE_DIR_IF_NOT_EXIST(f);
 821
 822         return 0;
 823 }
 824
 825 #undef MAKE_DIR_IF_NOT_EXIST
 826
 827 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 828 {
 829         gchar *folder_path, *path;
 830         gchar *real_path;
 831         cm_return_val_if_fail(folder != NULL, NULL);
 832         cm_return_val_if_fail(item != NULL, NULL);
 833
 834         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 835         cm_return_val_if_fail(folder_path != NULL, NULL);
 836
 837         /* FIXME: [W32] The code below does not correctly merge
 838            relative filenames; there should be a function to handle
 839            this.  */
 840         if ( !is_relative_filename (folder_path) ) {
 841                 if (item->path)
 842                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 843                                            item->path, NULL);
 844                 else
 845                         path = g_strdup(folder_path);
 846         } else {
 847                 if (item->path)
 848                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 849                                            folder_path, G_DIR_SEPARATOR_S,
 850                                            item->path, NULL);
 851                 else
 852                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 853                                            folder_path, NULL);
 854         }
 855         g_free(folder_path);
 856         real_path = mh_filename_from_utf8(path);
 857         if (!is_dir_exist(real_path) && is_dir_exist(path)) {
 858                 /* mmh, older version did put utf8 filenames instead of
 859                  * the correct encoding */
 860                 g_rename(path, real_path);
 861                 folder_item_scan(item);
 862         }
 863
 864         g_free(path);
 865         return real_path;
 866 }
 867
 868 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 869                                     const gchar *name)
 870 {
 871         gchar *path, *real_name;
 872         gchar *fullpath;
 873         FolderItem *new_item;
 874         gchar *mh_sequences_filename;
 875         FILE *mh_sequences_file;
 876
 877         cm_return_val_if_fail(folder != NULL, NULL);
 878         cm_return_val_if_fail(parent != NULL, NULL);
 879         cm_return_val_if_fail(name != NULL, NULL);
 880
 881         path = folder_item_get_path(parent);
 882         if (!is_dir_exist(path))
 883                 if (make_dir_hier(path) != 0)
 884                         return NULL;
 885
 886         real_name = mh_filename_from_utf8(name);
 887         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
 888         g_free(real_name);
 889         g_free(path);
 890
 891         if (make_dir(fullpath) < 0) {
 892                 g_free(fullpath);
 893                 return NULL;
 894         }
 895
 896         g_free(fullpath);
 897
 898         if (parent->path)
 899                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 900                                    NULL);
 901         else
 902                 path = g_strdup(name);
 903         new_item = folder_item_new(folder, name, path);
 904         folder_item_append(parent, new_item);
 905
 906         g_free(path);
 907
 908         path = folder_item_get_path(new_item);
 909         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 910                                             ".mh_sequences", NULL);
 911         if ((mh_sequences_file = g_fopen(mh_sequences_filename, "a+b")) != NULL) {
 912                 fclose(mh_sequences_file);
 913         }
 914         g_free(mh_sequences_filename);
 915         g_free(path);
 916
 917         return new_item;
 918 }
 919
 920 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 921                              const gchar *name)
 922 {
 923         gchar *real_name;
 924         gchar *oldpath;
 925         gchar *dirname;
 926         gchar *newpath, *utf8newpath;
 927         gchar *paths[2];
 928
 929         cm_return_val_if_fail(folder != NULL, -1);
 930         cm_return_val_if_fail(item != NULL, -1);
 931         cm_return_val_if_fail(item->path != NULL, -1);
 932         cm_return_val_if_fail(name != NULL, -1);
 933
 934         oldpath = folder_item_get_path(item);
 935         if (!is_dir_exist(oldpath))
 936                 make_dir_hier(oldpath);
 937
 938         dirname = g_path_get_dirname(oldpath);
 939         real_name = mh_filename_from_utf8(name);
 940         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
 941         g_free(real_name);
 942
 943         if (g_rename(oldpath, newpath) < 0) {
 944                 FILE_OP_ERROR(oldpath, "rename");
 945                 g_free(oldpath);
 946                 g_free(newpath);
 947                 return -1;
 948         }
 949
 950         g_free(oldpath);
 951         g_free(newpath);
 952
 953         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 954                 dirname = g_path_get_dirname(item->path);
 955                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
 956                                           name, NULL);
 957                 g_free(dirname);
 958         } else
 959                 utf8newpath = g_strdup(name);
 960
 961         g_free(item->name);
 962         item->name = g_strdup(name);
 963
 964         paths[0] = g_strdup(item->path);
 965         paths[1] = utf8newpath;
 966         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 967                         mh_rename_folder_func, paths);
 968
 969         g_free(paths[0]);
 970         g_free(paths[1]);
 971         return 0;
 972 }
 973
 974 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 975 {
 976         gchar *path;
 977
 978         cm_return_val_if_fail(folder != NULL, -1);
 979         cm_return_val_if_fail(item != NULL, -1);
 980         cm_return_val_if_fail(item->path != NULL, -1);
 981
 982         path = folder_item_get_path(item);
 983         if (remove_dir_recursive(path) < 0) {
 984                 g_warning("can't remove directory `%s'\n", path);
 985                 g_free(path);
 986                 return -1;
 987         }
 988
 989         g_free(path);
 990         folder_item_remove(item);
 991         return 0;
 992 }
 993
 994 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 995 {
 996         MsgInfo *msginfo;
 997         MsgFlags flags;
 998
 999         cm_return_val_if_fail(item != NULL, NULL);
1000         cm_return_val_if_fail(file != NULL, NULL);
1001
1002         flags.perm_flags = MSG_NEW|MSG_UNREAD;
1003         flags.tmp_flags = 0;
1004
1005         if (folder_has_parent_of_type(item, F_QUEUE)) {
1006                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
1007         } else if (folder_has_parent_of_type(item, F_DRAFT)) {
1008                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
1009         }
1010
1011         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
1012         if (!msginfo) return NULL;
1013
1014         msginfo->msgnum = atoi(file);
1015         msginfo->folder = item;
1016
1017         return msginfo;
1018 }
1019
1020 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
1021 {
1022         FolderItem *item;
1023         gchar *path;
1024
1025         cm_return_val_if_fail(node->data != NULL, FALSE);
1026
1027         if (G_NODE_IS_ROOT(node))
1028                 return FALSE;
1029
1030         item = FOLDER_ITEM(node->data);
1031
1032         path = folder_item_get_path(item);
1033         if (!is_dir_exist(path)) {
1034                 debug_print("folder '%s' not found. removing...\n", path?path:"(null)");
1035                 folder_item_remove(item);
1036         }
1037         g_free(path);
1038
1039         return FALSE;
1040 }
1041
1042 static void mh_remove_missing_folder_items(Folder *folder)
1043 {
1044         cm_return_if_fail(folder != NULL);
1045
1046         debug_print("searching missing folders...\n");
1047
1048         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1049                         mh_remove_missing_folder_items_func, folder);
1050 }
1051
1052 static void mh_scan_tree_recursive(FolderItem *item)
1053 {
1054         Folder *folder;
1055 #ifdef G_OS_WIN32
1056         GDir *dir;
1057 #else
1058         DIR *dp;
1059         struct dirent *d;
1060 #endif
1061         const gchar *dir_name;
1062         struct stat s;
1063         gchar *real_path, *entry, *utf8entry, *utf8name;
1064         gint n_msg = 0;
1065
1066         cm_return_if_fail(item != NULL);
1067         cm_return_if_fail(item->folder != NULL);
1068
1069         folder = item->folder;
1070
1071         real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
1072 #ifdef G_OS_WIN32
1073         dir = g_dir_open(real_path, 0, NULL);
1074         if (!dir) {
1075                 g_warning("failed to open directory: %s\n", real_path);
1076                 g_free(real_path);
1077                 return;
1078         }
1079 #else
1080         dp = opendir(real_path);
1081         if (!dp) {
1082                 FILE_OP_ERROR(real_path, "opendir");
1083                 return;
1084         }
1085 #endif
1086         g_free(real_path);
1087
1088         debug_print("scanning %s ...\n",
1089                     item->path ? item->path
1090                     : LOCAL_FOLDER(item->folder)->rootpath);
1091         if (folder->ui_func)
1092                 folder->ui_func(folder, item, folder->ui_func_data);
1093
1094 #ifdef G_OS_WIN32
1095         while ((dir_name = g_dir_read_name(dir)) != NULL) {
1096 #else
1097         while ((d = readdir(dp)) != NULL) {
1098                 dir_name = d->d_name;
1099 #endif
1100                 if (dir_name[0] == '.') continue;
1101
1102                 utf8name = mh_filename_to_utf8(dir_name);
1103                 if (item->path)
1104                         utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
1105                                                 utf8name, NULL);
1106                 else
1107                         utf8entry = g_strdup(utf8name);
1108                 entry = mh_filename_from_utf8(utf8entry);
1109
1110                 if (
1111 #if !defined(G_OS_WIN32) && !defined(MAEMO) && defined(HAVE_DIRENT_D_TYPE)
1112                         d->d_type == DT_DIR ||
1113                         (d->d_type == DT_UNKNOWN &&
1114 #endif
1115                         g_stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
1116 #if !defined(G_OS_WIN32) && !defined(MAEMO) && defined(HAVE_DIRENT_D_TYPE)
1117                         )
1118 #endif
1119                    ) {
1120                         FolderItem *new_item = NULL;
1121                         GNode *node;
1122
1123                         node = item->node;
1124                         for (node = node->children; node != NULL; node = node->next) {
1125                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
1126                                 gchar *curpath = mh_filename_from_utf8(cur_item->path);
1127                                 if (!strcmp2(curpath, entry)) {
1128                                         new_item = cur_item;
1129                                         g_free(curpath);
1130                                         break;
1131                                 }
1132                                 g_free(curpath);
1133                         }
1134                         if (!new_item) {
1135                                 debug_print("new folder '%s' found.\n", entry);
1136                                 new_item = folder_item_new(folder, utf8name, utf8entry);
1137                                 folder_item_append(item, new_item);
1138                         }
1139
1140                         if (!item->path) {
1141                                 if (!folder->inbox &&
1142                                     !strcmp(dir_name, INBOX_DIR)) {
1143                                         new_item->stype = F_INBOX;
1144                                         folder->inbox = new_item;
1145                                 } else if (!folder->outbox &&
1146                                            !strcmp(dir_name, OUTBOX_DIR)) {
1147                                         new_item->stype = F_OUTBOX;
1148                                         folder->outbox = new_item;
1149                                 } else if (!folder->draft &&
1150                                            !strcmp(dir_name, DRAFT_DIR)) {
1151                                         new_item->stype = F_DRAFT;
1152                                         folder->draft = new_item;
1153                                 } else if (!folder->queue &&
1154                                            !strcmp(dir_name, QUEUE_DIR)) {
1155                                         new_item->stype = F_QUEUE;
1156                                         folder->queue = new_item;
1157                                 } else if (!folder->trash &&
1158                                            !strcmp(dir_name, TRASH_DIR)) {
1159                                         new_item->stype = F_TRASH;
1160                                         folder->trash = new_item;
1161                                 }
1162                         }
1163
1164                         mh_scan_tree_recursive(new_item);
1165                 } else if (to_number(dir_name) > 0) n_msg++;
1166
1167                 g_free(entry);
1168                 g_free(utf8entry);
1169                 g_free(utf8name);
1170         }
1171
1172 #ifdef G_OS_WIN32
1173         g_dir_close(dir);
1174 #else
1175         closedir(dp);
1176 #endif
1177
1178         mh_set_mtime(folder, item);
1179 }
1180
1181 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1182 {
1183         FolderItem *item = node->data;
1184         gchar **paths = data;
1185         const gchar *oldpath = paths[0];
1186         const gchar *newpath = paths[1];
1187         gchar *base;
1188         gchar *new_itempath;
1189         gint oldpathlen;
1190
1191         oldpathlen = strlen(oldpath);
1192         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1193                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1194                 return TRUE;
1195         }
1196
1197         base = item->path + oldpathlen;
1198         while (*base == G_DIR_SEPARATOR) base++;
1199         if (*base == '\0')
1200                 new_itempath = g_strdup(newpath);
1201         else
1202                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1203                                            NULL);
1204         g_free(item->path);
1205         item->path = new_itempath;
1206
1207         return FALSE;
1208 }
1209
1210 static gchar *mh_filename_from_utf8(const gchar *path)
1211 {
1212         gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
1213
1214         if (!real_path) {
1215                 g_warning("mh_filename_from_utf8: failed to convert character set\n");
1216                 real_path = g_strdup(path);
1217         }
1218
1219         return real_path;
1220 }
1221
1222 static gchar *mh_filename_to_utf8(const gchar *path)
1223 {
1224         gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
1225         if (!utf8path) {
1226                 g_warning("mh_filename_to_utf8: failed to convert character set\n");
1227                 utf8path = g_strdup(path);
1228         }
1229
1230         return utf8path;
1231 }
1232
1233 static gint sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1234 {
1235         MsgInfo *msginfo_a = (MsgInfo *) a;
1236         MsgInfo *msginfo_b = (MsgInfo *) b;
1237
1238         return (msginfo_a->msgnum - msginfo_b->msgnum);
1239 }
1240
1241 static gchar *get_unseen_seq_name(void)
1242 {
1243         static gchar *seq_name = NULL;
1244         if (!seq_name) {
1245                 gchar buf[BUFFSIZE];
1246                 gchar *tmp;
1247                 gchar *profile_path = g_strconcat(
1248                         get_home_dir(), G_DIR_SEPARATOR_S,
1249                         ".mh_profile", NULL);
1250                 FILE *fp = g_fopen(profile_path, "r");
1251                 if (fp) {
1252                         while (fgets(buf, sizeof(buf), fp) != NULL) {
1253                                 if (!strncmp(buf, "Unseen-Sequence:", strlen("Unseen-Sequence:"))) {
1254                                         gchar *seq_tmp = buf+strlen("Unseen-Sequence:");
1255                                         while (*seq_tmp == ' ')
1256                                                 seq_tmp++;
1257                                         seq_name = g_strdup(seq_tmp);
1258                                         seq_name = strretchomp(seq_name);
1259                                         break;
1260                                 }
1261                         }
1262                         fclose(fp);
1263                 }
1264                 if (!seq_name)
1265                         seq_name = g_strdup("unseen");
1266                 tmp = g_strdup_printf("%s:", seq_name);
1267                 g_free(seq_name);
1268                 seq_name = tmp;
1269         }
1270         return seq_name;
1271 }
1272
1273 static void mh_write_sequences(FolderItem *item, gboolean remove_unseen)
1274 {
1275         gchar *mh_sequences_old, *mh_sequences_new;
1276         FILE *mh_sequences_old_fp, *mh_sequences_new_fp;
1277         gchar buf[BUFFSIZE];
1278         gchar *path = NULL;
1279         gboolean err = FALSE;
1280         START_TIMING("");
1281
1282         if (!item)
1283                 return;
1284
1285         path = folder_item_get_path(item);
1286
1287         mh_sequences_old = g_strconcat(path, G_DIR_SEPARATOR_S,
1288                                             ".mh_sequences", NULL);
1289         mh_sequences_new = g_strconcat(path, G_DIR_SEPARATOR_S,
1290                                             ".mh_sequences.new", NULL);
1291         if ((mh_sequences_new_fp = g_fopen(mh_sequences_new, "w+b")) != NULL) {
1292                 GSList *msglist = folder_item_get_msg_list(item);
1293                 GSList *cur;
1294                 MsgInfo *info = NULL;
1295                 gint start = -1, end = -1;
1296                 gchar *sequence = g_strdup("");
1297                 gint seq_len = 0;
1298                 msglist = g_slist_sort(msglist, sort_cache_list_by_msgnum);
1299                 cur = msglist;
1300
1301                 /* write the unseen sequence if we don't have to scrap it */
1302                 if (!remove_unseen) do {
1303                         info = (MsgInfo *)(cur ? cur->data:NULL);
1304                         if (info && (MSG_IS_UNREAD(info->flags) || MSG_IS_NEW(info->flags))) {
1305                                 if (start < 0)
1306                                         start = end = info->msgnum;
1307                                 else
1308                                         end = info->msgnum;
1309                         } else {
1310                                 if (start > 0 && end > 0) {
1311                                         gchar tmp[32];
1312                                         gint tmp_len = 0;
1313                                         if (start != end)
1314                                                 snprintf(tmp, 31, " %d-%d", start, end);
1315                                         else
1316                                                 snprintf(tmp, 31, " %d", start);
1317
1318                                         tmp_len = strlen(tmp);
1319                                         sequence = g_realloc(sequence, seq_len+tmp_len+1);
1320                                         strcpy(sequence+seq_len, tmp);
1321                                         seq_len += tmp_len;
1322
1323                                         start = end = -1;
1324                                 }
1325                         }
1326                         cur = cur ? cur->next:NULL;
1327                 } while (cur || (start > 0 && end > 0));
1328                 if (sequence && *sequence) {
1329                         if (fprintf(mh_sequences_new_fp, "%s%s\n",
1330                                         get_unseen_seq_name(), sequence) < 0)
1331                                 err = TRUE;
1332                         else
1333                                 debug_print("wrote unseen sequence: '%s%s'\n",
1334                                         get_unseen_seq_name(), sequence);
1335                 }
1336                 /* rewrite the rest of the file */
1337                 if ((mh_sequences_old_fp = g_fopen(mh_sequences_old, "r+b")) != NULL) {
1338                         while (fgets(buf, sizeof(buf), mh_sequences_old_fp) != NULL) {
1339                                 if (strncmp(buf, get_unseen_seq_name(), strlen(get_unseen_seq_name())))
1340                                         if (fprintf(mh_sequences_new_fp, "%s", buf) < 0) {
1341                                                 err = TRUE;
1342                                                 break;
1343                                         }
1344                         }
1345                         fclose(mh_sequences_old_fp);
1346                 }
1347
1348                 fflush(mh_sequences_new_fp);
1349 #if 0
1350                 fsync(fileno(mh_sequences_new_fp));
1351 #endif
1352                 if (fclose(mh_sequences_new_fp) == EOF)
1353                         err = TRUE;
1354
1355                 if (!err)
1356                         g_rename(mh_sequences_new, mh_sequences_old);
1357                 g_free(sequence);
1358                 procmsg_msg_list_free(msglist);
1359         }
1360         g_free(mh_sequences_old);
1361         g_free(mh_sequences_new);
1362         g_free(path);
1363
1364         END_TIMING();
1365 }
1366
1367 static int mh_item_close(Folder *folder, FolderItem *item)
1368 {
1369         time_t last_mtime = (time_t)0;
1370         gboolean need_scan = mh_scan_required(item->folder, item);
1371         last_mtime = item->mtime;
1372
1373         mh_write_sequences(item, FALSE);
1374
1375         if (item->mtime == last_mtime && !need_scan) {
1376                 mh_set_mtime(folder, item);
1377         }
1378
1379         return 0;
1380 }
1381
1382 static void mh_set_mtime(Folder *folder, FolderItem *item)
1383 {
1384         struct stat s;
1385         gchar *path = folder_item_get_path(item);
1386
1387         cm_return_if_fail(path != NULL);
1388
1389         if (g_stat(path, &s) < 0) {
1390                 FILE_OP_ERROR(path, "stat");
1391                 g_free(path);
1392                 return;
1393         }
1394
1395         item->mtime = s.st_mtime;
1396         debug_print("MH: forced mtime of %s to %ld\n", item->name?item->name:"(null)", item->mtime);
1397         g_free(path);
1398 }