src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws 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 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <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 #include "statusbar.h"
  47 #include "gtkutils.h"
  48
  49 /* Define possible missing constants for Windows. */
  50 #ifdef G_OS_WIN32
  51 # ifndef S_IRGRP
  52 # define S_IRGRP 0
  53 # define S_IWGRP 0
  54 # endif
  55 # ifndef S_IROTH
  56 # define S_IROTH 0
  57 # define S_IWOTH 0
  58 # endif
  59 #endif
  60
  61
  62 static void     mh_folder_init          (Folder         *folder,
  63                                          const gchar    *name,
  64                                          const gchar    *path);
  65
  66 static Folder   *mh_folder_new          (const gchar    *name,
  67                                          const gchar    *path);
  68 static void     mh_folder_destroy       (Folder         *folder);
  69 static gchar   *mh_fetch_msg            (Folder         *folder,
  70                                          FolderItem     *item,
  71                                          gint            num);
  72 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  73                                          FolderItem     *item,
  74                                          gint            num);
  75 static gint     mh_add_msg              (Folder         *folder,
  76                                          FolderItem     *dest,
  77                                          const gchar    *file,
  78                                          MsgFlags       *flags);
  79 static gint     mh_add_msgs             (Folder         *folder,
  80                                          FolderItem     *dest,
  81                                          GSList         *file_list,
  82                                          GRelation      *relation);
  83 static gint     mh_copy_msg             (Folder         *folder,
  84                                          FolderItem     *dest,
  85                                          MsgInfo        *msginfo);
  86 static gint     mh_copy_msgs            (Folder         *folder,
  87                                          FolderItem     *dest,
  88                                          MsgInfoList    *msglist,
  89                                          GRelation      *relation);
  90 static gint     mh_remove_msg           (Folder         *folder,
  91                                          FolderItem     *item,
  92                                          gint            num);
  93 static gint     mh_remove_msgs          (Folder         *folder,
  94                                          FolderItem     *item,
  95                                          MsgInfoList    *msglist,
  96                                          GRelation      *relation);
  97 static gint     mh_remove_all_msg       (Folder         *folder,
  98                                          FolderItem     *item);
  99 static gboolean mh_is_msg_changed       (Folder         *folder,
 100                                          FolderItem     *item,
 101                                          MsgInfo        *msginfo);
 102
 103 static gint     mh_get_num_list         (Folder         *folder,
 104                                          FolderItem     *item,
 105                                          GSList         **list,
 106                                          gboolean       *old_uids_valid);
 107 static gint     mh_scan_tree            (Folder         *folder);
 108
 109 static gint    mh_create_tree           (Folder         *folder);
 110 static FolderItem *mh_create_folder     (Folder         *folder,
 111                                          FolderItem     *parent,
 112                                          const gchar    *name);
 113 static gint    mh_rename_folder         (Folder         *folder,
 114                                          FolderItem     *item,
 115                                          const gchar    *name);
 116 static gint    mh_remove_folder         (Folder         *folder,
 117                                          FolderItem     *item);
 118
 119 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
 120
 121 static MsgInfo *mh_parse_msg                    (const gchar    *file,
 122                                                  FolderItem     *item);
 123 static void     mh_remove_missing_folder_items  (Folder         *folder);
 124 static gchar    *mh_filename_from_utf8          (const gchar    *path);
 125 static gchar    *mh_filename_to_utf8            (const gchar    *path);
 126 static void     mh_scan_tree_recursive          (FolderItem     *item);
 127
 128 static gboolean mh_rename_folder_func           (GNode          *node,
 129                                                  gpointer        data);
 130 static gchar   *mh_item_get_path                (Folder *folder,
 131                                                  FolderItem *item);
 132
 133 static gboolean mh_scan_required        (Folder         *folder,
 134                                          FolderItem     *item);
 135 static int mh_item_close                (Folder         *folder,
 136                                          FolderItem     *item);
 137 static gint mh_get_flags                (Folder *folder, FolderItem *item,
 138                                          MsgInfoList *msginfo_list, GRelation *msgflags);
 139 static void mh_write_sequences          (FolderItem     *item, gboolean remove_unseen);
 140
 141 static FolderClass mh_class;
 142
 143 FolderClass *mh_get_class(void)
 144 {
 145         if (mh_class.idstr == NULL) {
 146                 mh_class.type = F_MH;
 147                 mh_class.idstr = "mh";
 148                 mh_class.uistr = "MH";
 149
 150                 /* Folder functions */
 151                 mh_class.new_folder = mh_folder_new;
 152                 mh_class.destroy_folder = mh_folder_destroy;
 153                 mh_class.set_xml = folder_local_set_xml;
 154                 mh_class.get_xml = folder_local_get_xml;
 155                 mh_class.scan_tree = mh_scan_tree;
 156                 mh_class.create_tree = mh_create_tree;
 157
 158                 /* FolderItem functions */
 159                 mh_class.item_get_path = mh_item_get_path;
 160                 mh_class.create_folder = mh_create_folder;
 161                 mh_class.rename_folder = mh_rename_folder;
 162                 mh_class.remove_folder = mh_remove_folder;
 163                 mh_class.get_num_list = mh_get_num_list;
 164                 mh_class.scan_required = mh_scan_required;
 165                 mh_class.close = mh_item_close;
 166                 mh_class.get_flags = NULL; /*mh_get_flags */;
 167
 168                 /* Message functions */
 169                 mh_class.get_msginfo = mh_get_msginfo;
 170                 mh_class.fetch_msg = mh_fetch_msg;
 171                 mh_class.add_msg = mh_add_msg;
 172                 mh_class.add_msgs = mh_add_msgs;
 173                 mh_class.copy_msg = mh_copy_msg;
 174                 mh_class.copy_msgs = mh_copy_msgs;
 175                 mh_class.remove_msg = mh_remove_msg;
 176                 mh_class.remove_msgs = mh_remove_msgs;
 177                 mh_class.remove_all_msg = mh_remove_all_msg;
 178                 mh_class.is_msg_changed = mh_is_msg_changed;
 179         }
 180
 181         return &mh_class;
 182 }
 183
 184 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 185 {
 186         Folder *folder;
 187
 188         folder = (Folder *)g_new0(MHFolder, 1);
 189         folder->klass = &mh_class;
 190         mh_folder_init(folder, name, path);
 191
 192         return folder;
 193 }
 194
 195 static void mh_folder_destroy(Folder *folder)
 196 {
 197         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 198 }
 199
 200 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 201 {
 202         folder_local_folder_init(folder, name, path);
 203
 204 }
 205
 206 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 207 {
 208         gchar *path;
 209         struct stat s;
 210
 211         path = folder_item_get_path(item);
 212         g_return_val_if_fail(path != NULL, FALSE);
 213
 214         if (stat(path, &s) < 0) {
 215                 FILE_OP_ERROR(path, "stat");
 216                 g_free(path);
 217                 return FALSE;
 218         }
 219
 220         if ((s.st_mtime > item->mtime) &&
 221                 (s.st_mtime - 3600 != item->mtime)) {
 222                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 223                             path,
 224                             (long int) s.st_mtime,
 225                             (long int) item->mtime);
 226                 g_free(path);
 227                 return TRUE;
 228         }
 229
 230         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 231                     path,
 232                     (long int) s.st_mtime,
 233                     (long int) item->mtime);
 234         g_free(path);
 235         return FALSE;
 236 }
 237
 238 void mh_get_last_num(Folder *folder, FolderItem *item)
 239 {
 240         gchar *path;
 241         DIR *dp;
 242         struct dirent *d;
 243         gint max = 0;
 244         gint num;
 245
 246         g_return_if_fail(item != NULL);
 247
 248         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 249
 250         path = folder_item_get_path(item);
 251         g_return_if_fail(path != NULL);
 252         if (change_dir(path) < 0) {
 253                 g_free(path);
 254                 return;
 255         }
 256         g_free(path);
 257
 258         if ((dp = opendir(".")) == NULL) {
 259                 FILE_OP_ERROR(item->path, "opendir");
 260                 return;
 261         }
 262
 263         while ((d = readdir(dp)) != NULL) {
 264                 if ((num = to_number(d->d_name)) > 0 &&
 265                     dirent_is_regular_file(d)) {
 266                         if (max < num)
 267                                 max = num;
 268                 }
 269         }
 270         closedir(dp);
 271
 272         debug_print("Last number in dir %s = %d\n", item->path, max);
 273         item->last_num = max;
 274 }
 275
 276 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 277 {
 278
 279         gchar *path;
 280         DIR *dp;
 281         struct dirent *d;
 282         gint num, nummsgs = 0;
 283
 284         g_return_val_if_fail(item != NULL, -1);
 285
 286         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path);
 287
 288         *old_uids_valid = TRUE;
 289
 290         path = folder_item_get_path(item);
 291         g_return_val_if_fail(path != NULL, -1);
 292         if (change_dir(path) < 0) {
 293                 g_free(path);
 294                 return -1;
 295         }
 296         g_free(path);
 297
 298         if ((dp = opendir(".")) == NULL) {
 299                 FILE_OP_ERROR(item->path, "opendir");
 300                 return -1;
 301         }
 302
 303         while ((d = readdir(dp)) != NULL) {
 304                 if ((num = to_number(d->d_name)) > 0) {
 305                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 306                         nummsgs++;
 307                 }
 308         }
 309         closedir(dp);
 310
 311         item->mtime = time(NULL);
 312         return nummsgs;
 313 }
 314
 315 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 316 {
 317         gchar *path;
 318         gchar *file;
 319
 320         g_return_val_if_fail(item != NULL, NULL);
 321         g_return_val_if_fail(num > 0, NULL);
 322
 323         path = folder_item_get_path(item);
 324         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 325
 326         if (!is_file_exist(file)) {
 327                 g_free(file);
 328                 g_free(path);
 329                 return NULL;
 330         }
 331         g_free(path);
 332         return file;
 333 }
 334
 335 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 336 {
 337         MsgInfo *msginfo;
 338         gchar *file;
 339
 340         g_return_val_if_fail(item != NULL, NULL);
 341         if (num <= 0)
 342                 return NULL;
 343
 344         file = mh_fetch_msg(folder, item, num);
 345         if (!file) return NULL;
 346
 347         msginfo = mh_parse_msg(file, item);
 348         if (msginfo)
 349                 msginfo->msgnum = num;
 350
 351         g_free(file);
 352
 353         return msginfo;
 354 }
 355
 356 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 357 {
 358         gchar *destfile;
 359         gchar *destpath;
 360
 361         destpath = folder_item_get_path(dest);
 362         g_return_val_if_fail(destpath != NULL, NULL);
 363
 364         if (!is_dir_exist(destpath))
 365                 make_dir_hier(destpath);
 366
 367         for (;;) {
 368                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 369                                            dest->last_num + 1);
 370                 if (is_file_entry_exist(destfile)) {
 371                         dest->last_num++;
 372                         g_free(destfile);
 373                 } else
 374                         break;
 375         }
 376
 377         g_free(destpath);
 378
 379         return destfile;
 380 }
 381
 382 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 383 {
 384         gint ret;
 385         GSList file_list;
 386         MsgFileInfo fileinfo;
 387
 388         g_return_val_if_fail(file != NULL, -1);
 389
 390         fileinfo.msginfo = NULL;
 391         fileinfo.file = (gchar *)file;
 392         fileinfo.flags = flags;
 393         file_list.data = &fileinfo;
 394         file_list.next = NULL;
 395
 396         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 397         return ret;
 398 }
 399
 400 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 401                  GRelation *relation)
 402 {
 403         gchar *destfile;
 404         GSList *cur;
 405         MsgFileInfo *fileinfo;
 406
 407         g_return_val_if_fail(dest != NULL, -1);
 408         g_return_val_if_fail(file_list != NULL, -1);
 409
 410         if (dest->last_num < 0) {
 411                 mh_get_last_num(folder, dest);
 412                 if (dest->last_num < 0) return -1;
 413         }
 414
 415         for (cur = file_list; cur != NULL; cur = cur->next) {
 416                 fileinfo = (MsgFileInfo *)cur->data;
 417
 418                 destfile = mh_get_new_msg_filename(dest);
 419                 if (destfile == NULL) return -1;
 420
 421 #ifdef G_OS_UNIX
 422                 if (link(fileinfo->file, destfile) < 0) {
 423 #endif
 424                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 425                                 g_warning(_("can't copy message %s to %s\n"),
 426                                           fileinfo->file, destfile);
 427                                 g_free(destfile);
 428                                 return -1;
 429                         }
 430 #ifdef G_OS_UNIX
 431                 }
 432 #endif
 433
 434                 if (relation != NULL)
 435                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 436                 g_free(destfile);
 437                 dest->last_num++;
 438         }
 439         mh_write_sequences(dest, TRUE);
 440         return dest->last_num;
 441 }
 442
 443 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 444 {
 445         GSList msglist;
 446
 447         g_return_val_if_fail(msginfo != NULL, -1);
 448
 449         msglist.data = msginfo;
 450         msglist.next = NULL;
 451
 452         return mh_copy_msgs(folder, dest, &msglist, NULL);
 453 }
 454
 455 static gint mh_copy_msgs(Folder *folder, FolderItem *dest, MsgInfoList *msglist,
 456                          GRelation *relation)
 457 {
 458         gboolean dest_need_scan = FALSE;
 459         gchar *srcfile;
 460         gchar *destfile;
 461         gint filemode = 0;
 462         FolderItemPrefs *prefs;
 463         MsgInfo *msginfo = NULL;
 464         MsgInfoList *cur = NULL;
 465         gint curnum = 0, total = 0;
 466         gchar *srcpath = NULL;
 467         gboolean full_fetch = FALSE;
 468
 469         g_return_val_if_fail(dest != NULL, -1);
 470         g_return_val_if_fail(msglist != NULL, -1);
 471
 472         msginfo = (MsgInfo *)msglist->data;
 473
 474         g_return_val_if_fail(msginfo != NULL, -1);
 475
 476         if (msginfo->folder == dest) {
 477                 g_warning("the src folder is identical to the dest.\n");
 478                 return -1;
 479         }
 480
 481         if (msginfo->folder->folder != dest->folder)
 482                 full_fetch = TRUE;
 483
 484         if (dest->last_num < 0) {
 485                 mh_get_last_num(folder, dest);
 486                 if (dest->last_num < 0) return -1;
 487         }
 488
 489         prefs = dest->prefs;
 490
 491         srcpath = folder_item_get_path(msginfo->folder);
 492
 493         total = g_slist_length(msglist);
 494         if (total > 100) {
 495                 if (MSG_IS_MOVE(msginfo->flags))
 496                         statusbar_print_all(_("Moving messages..."));
 497                 else
 498                         statusbar_print_all(_("Copying messages..."));
 499         }
 500         for (cur = msglist; cur; cur = cur->next) {
 501                 msginfo = (MsgInfo *)cur->data;
 502                 if (!msginfo) {
 503                         goto err_reset_status;
 504                 }
 505                 if (!full_fetch) {
 506                         srcfile = g_strconcat(srcpath,
 507                                 G_DIR_SEPARATOR_S,
 508                                 itos(msginfo->msgnum), NULL);
 509                 } else {
 510                         srcfile = procmsg_get_message_file(msginfo);
 511                 }
 512                 if (!srcfile) {
 513                         goto err_reset_status;
 514                 }
 515                 destfile = mh_get_new_msg_filename(dest);
 516                 if (!destfile) {
 517                         g_free(srcfile);
 518                         goto err_reset_status;
 519                 }
 520
 521                 if (total > 100) {
 522                         statusbar_progress_all(curnum, total, 100);
 523                         if (curnum % 100 == 0)
 524                                 GTK_EVENTS_FLUSH();
 525                         curnum++;
 526                 }
 527
 528                 debug_print("Copying message %s%c%d to %s ...\n",
 529                             msginfo->folder->path, G_DIR_SEPARATOR,
 530                             msginfo->msgnum, dest->path);
 531
 532
 533                 if (MSG_IS_MOVE(msginfo->flags)) {
 534                         if (move_file(srcfile, destfile, TRUE) < 0) {
 535                                 FILE_OP_ERROR(srcfile, "move");
 536                                 if (copy_file(srcfile, destfile, TRUE) < 0) {
 537                                         FILE_OP_ERROR(srcfile, "copy");
 538                                         g_free(srcfile);
 539                                         g_free(destfile);
 540                                         goto err_reset_status;
 541                                 }
 542                         }
 543                 } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 544                         FILE_OP_ERROR(srcfile, "copy");
 545                         g_free(srcfile);
 546                         g_free(destfile);
 547                         goto err_reset_status;
 548                 }
 549                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 550                         if (chmod(destfile, prefs->folder_chmod) < 0)
 551                                 FILE_OP_ERROR(destfile, "chmod");
 552
 553                         /* for mark file */
 554                         filemode = prefs->folder_chmod;
 555                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
 556                         if (filemode & S_IROTH) filemode |= S_IWOTH;
 557                 }
 558                 if (relation)
 559                         g_relation_insert(relation, msginfo, GINT_TO_POINTER(dest->last_num+1));
 560                 g_free(srcfile);
 561                 g_free(destfile);
 562                 dest->last_num++;
 563         }
 564
 565         g_free(srcpath);
 566         mh_write_sequences(dest, TRUE);
 567
 568         dest_need_scan = mh_scan_required(dest->folder, dest);
 569         if (!dest_need_scan)
 570                 dest->mtime = time(NULL);
 571
 572         if (total > 100) {
 573                 statusbar_progress_all(0,0,0);
 574                 statusbar_pop_all();
 575         }
 576         return dest->last_num;
 577 err_reset_status:
 578         g_free(srcpath);
 579         mh_write_sequences(dest, TRUE);
 580         if (total > 100) {
 581                 statusbar_progress_all(0,0,0);
 582                 statusbar_pop_all();
 583         }
 584         return -1;
 585
 586 }
 587
 588 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 589 {
 590         gboolean need_scan = FALSE;
 591         gchar *file;
 592
 593         g_return_val_if_fail(item != NULL, -1);
 594
 595         file = mh_fetch_msg(folder, item, num);
 596         g_return_val_if_fail(file != NULL, -1);
 597
 598         need_scan = mh_scan_required(folder, item);
 599
 600         if (g_unlink(file) < 0) {
 601                 FILE_OP_ERROR(file, "unlink");
 602                 g_free(file);
 603                 return -1;
 604         }
 605
 606         if (!need_scan)
 607                 item->mtime = time(NULL);
 608
 609         g_free(file);
 610         return 0;
 611 }
 612
 613 static gint mh_remove_msgs(Folder *folder, FolderItem *item,
 614                     MsgInfoList *msglist, GRelation *relation)
 615 {
 616         gboolean need_scan = FALSE;
 617         gchar *path, *file;
 618         MsgInfoList *cur;
 619
 620         g_return_val_if_fail(item != NULL, -1);
 621
 622         path = folder_item_get_path(item);
 623
 624         for (cur = msglist; cur; cur = cur->next) {
 625                 MsgInfo *msginfo = (MsgInfo *)cur->data;
 626                 if (msginfo == NULL)
 627                         continue;
 628                 file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 629                 if (file == NULL)
 630                         continue;
 631
 632                 if (g_unlink(file) < 0) {
 633                         g_free(file);
 634                         continue;
 635                 }
 636
 637                 g_free(file);
 638         }
 639
 640         need_scan = mh_scan_required(folder, item);
 641
 642         if (!need_scan)
 643                 item->mtime = time(NULL);
 644
 645         g_free(path);
 646         return 0;
 647 }
 648
 649 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 650 {
 651         gchar *path;
 652         gint val;
 653
 654         g_return_val_if_fail(item != NULL, -1);
 655
 656         path = folder_item_get_path(item);
 657         g_return_val_if_fail(path != NULL, -1);
 658         val = remove_all_numbered_files(path);
 659         g_free(path);
 660
 661         mh_write_sequences(item, TRUE);
 662
 663         return val;
 664 }
 665
 666 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 667                                   MsgInfo *msginfo)
 668 {
 669         struct stat s;
 670
 671         if (g_stat(itos(msginfo->msgnum), &s) < 0 ||
 672             msginfo->size  != s.st_size || (
 673                 (msginfo->mtime - s.st_mtime != 0) &&
 674                 (msginfo->mtime - s.st_mtime != 3600) &&
 675                 (msginfo->mtime - s.st_mtime != -3600)))
 676                 return TRUE;
 677
 678         return FALSE;
 679 }
 680
 681 static gint mh_scan_tree(Folder *folder)
 682 {
 683         FolderItem *item;
 684         gchar *rootpath;
 685
 686         g_return_val_if_fail(folder != NULL, -1);
 687
 688         if (!folder->node) {
 689                 item = folder_item_new(folder, folder->name, NULL);
 690                 item->folder = folder;
 691                 folder->node = item->node = g_node_new(item);
 692         } else
 693                 item = FOLDER_ITEM(folder->node->data);
 694
 695         rootpath = folder_item_get_path(item);
 696         if (change_dir(rootpath) < 0) {
 697                 g_free(rootpath);
 698                 return -1;
 699         }
 700         g_free(rootpath);
 701
 702         mh_create_tree(folder);
 703         mh_remove_missing_folder_items(folder);
 704         mh_scan_tree_recursive(item);
 705
 706         return 0;
 707 }
 708
 709 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 710 { \
 711         if (!is_dir_exist(dir)) { \
 712                 if (is_file_exist(dir)) { \
 713                         g_warning("File `%s' already exists.\n" \
 714                                     "Can't create folder.", dir); \
 715                         return -1; \
 716                 } \
 717                 if (make_dir(dir) < 0) \
 718                         return -1; \
 719         } \
 720 }
 721
 722 static gint mh_create_tree(Folder *folder)
 723 {
 724         gchar *rootpath;
 725
 726         g_return_val_if_fail(folder != NULL, -1);
 727
 728         CHDIR_RETURN_VAL_IF_FAIL(get_mail_base_dir(), -1);
 729         rootpath = LOCAL_FOLDER(folder)->rootpath;
 730         MAKE_DIR_IF_NOT_EXIST(rootpath);
 731         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 732         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 733         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 734         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 735         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 736         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 737
 738         return 0;
 739 }
 740
 741 #undef MAKE_DIR_IF_NOT_EXIST
 742
 743 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 744 {
 745         gchar *folder_path, *path;
 746         gchar *real_path;
 747         g_return_val_if_fail(folder != NULL, NULL);
 748         g_return_val_if_fail(item != NULL, NULL);
 749
 750         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 751         g_return_val_if_fail(folder_path != NULL, NULL);
 752
 753         /* FIXME: [W32] The code below does not correctly merge
 754            relative filenames; there should be a function to handle
 755            this.  */
 756         if ( !is_relative_filename (folder_path) ) {
 757                 if (item->path)
 758                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 759                                            item->path, NULL);
 760                 else
 761                         path = g_strdup(folder_path);
 762         } else {
 763                 if (item->path)
 764                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 765                                            folder_path, G_DIR_SEPARATOR_S,
 766                                            item->path, NULL);
 767                 else
 768                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 769                                            folder_path, NULL);
 770         }
 771         g_free(folder_path);
 772         real_path = mh_filename_from_utf8(path);
 773         if (!is_dir_exist(real_path) && is_dir_exist(path)) {
 774                 /* mmh, older version did put utf8 filenames instead of
 775                  * the correct encoding */
 776                 rename(path, real_path);
 777                 folder_item_scan(item);
 778         }
 779
 780         g_free(path);
 781         return real_path;
 782 }
 783
 784 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 785                                     const gchar *name)
 786 {
 787         gchar *path, *real_name;
 788         gchar *fullpath;
 789         FolderItem *new_item;
 790         gchar *mh_sequences_filename;
 791         FILE *mh_sequences_file;
 792
 793         g_return_val_if_fail(folder != NULL, NULL);
 794         g_return_val_if_fail(parent != NULL, NULL);
 795         g_return_val_if_fail(name != NULL, NULL);
 796
 797         path = folder_item_get_path(parent);
 798         if (!is_dir_exist(path))
 799                 if (make_dir_hier(path) != 0)
 800                         return NULL;
 801
 802         real_name = mh_filename_from_utf8(name);
 803         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
 804         g_free(real_name);
 805         g_free(path);
 806
 807         if (make_dir(fullpath) < 0) {
 808                 g_free(fullpath);
 809                 return NULL;
 810         }
 811
 812         g_free(fullpath);
 813
 814         if (parent->path)
 815                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 816                                    NULL);
 817         else
 818                 path = g_strdup(name);
 819         new_item = folder_item_new(folder, name, path);
 820         folder_item_append(parent, new_item);
 821
 822         g_free(path);
 823
 824         path = folder_item_get_path(new_item);
 825         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 826                                             ".mh_sequences", NULL);
 827         if ((mh_sequences_file = g_fopen(mh_sequences_filename, "a+b")) != NULL) {
 828                 fclose(mh_sequences_file);
 829         }
 830         g_free(mh_sequences_filename);
 831         g_free(path);
 832
 833         return new_item;
 834 }
 835
 836 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 837                              const gchar *name)
 838 {
 839         gchar *real_name;
 840         gchar *oldpath;
 841         gchar *dirname;
 842         gchar *newpath, *utf8newpath;
 843         gchar *paths[2];
 844
 845         g_return_val_if_fail(folder != NULL, -1);
 846         g_return_val_if_fail(item != NULL, -1);
 847         g_return_val_if_fail(item->path != NULL, -1);
 848         g_return_val_if_fail(name != NULL, -1);
 849
 850         oldpath = folder_item_get_path(item);
 851         if (!is_dir_exist(oldpath))
 852                 make_dir_hier(oldpath);
 853
 854         dirname = g_path_get_dirname(oldpath);
 855         real_name = mh_filename_from_utf8(name);
 856         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
 857         g_free(real_name);
 858
 859         if (g_rename(oldpath, newpath) < 0) {
 860                 FILE_OP_ERROR(oldpath, "rename");
 861                 g_free(oldpath);
 862                 g_free(newpath);
 863                 return -1;
 864         }
 865
 866         g_free(oldpath);
 867         g_free(newpath);
 868
 869         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 870                 dirname = g_path_get_dirname(item->path);
 871                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
 872                                           name, NULL);
 873                 g_free(dirname);
 874         } else
 875                 utf8newpath = g_strdup(name);
 876
 877         g_free(item->name);
 878         item->name = g_strdup(name);
 879
 880         paths[0] = g_strdup(item->path);
 881         paths[1] = utf8newpath;
 882         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 883                         mh_rename_folder_func, paths);
 884
 885         g_free(paths[0]);
 886         g_free(paths[1]);
 887         return 0;
 888 }
 889
 890 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 891 {
 892         gchar *path;
 893
 894         g_return_val_if_fail(folder != NULL, -1);
 895         g_return_val_if_fail(item != NULL, -1);
 896         g_return_val_if_fail(item->path != NULL, -1);
 897
 898         path = folder_item_get_path(item);
 899         if (remove_dir_recursive(path) < 0) {
 900                 g_warning("can't remove directory `%s'\n", path);
 901                 g_free(path);
 902                 return -1;
 903         }
 904
 905         g_free(path);
 906         folder_item_remove(item);
 907         return 0;
 908 }
 909
 910 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 911 {
 912         MsgInfo *msginfo;
 913         MsgFlags flags;
 914
 915         g_return_val_if_fail(item != NULL, NULL);
 916         g_return_val_if_fail(file != NULL, NULL);
 917
 918         flags.perm_flags = MSG_NEW|MSG_UNREAD;
 919         flags.tmp_flags = 0;
 920
 921         if (folder_has_parent_of_type(item, F_QUEUE)) {
 922                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
 923         } else if (folder_has_parent_of_type(item, F_DRAFT)) {
 924                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
 925         }
 926
 927         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
 928         if (!msginfo) return NULL;
 929
 930         msginfo->msgnum = atoi(file);
 931         msginfo->folder = item;
 932
 933         return msginfo;
 934 }
 935
 936 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
 937 {
 938         FolderItem *item;
 939         gchar *path;
 940
 941         g_return_val_if_fail(node->data != NULL, FALSE);
 942
 943         if (G_NODE_IS_ROOT(node))
 944                 return FALSE;
 945
 946         item = FOLDER_ITEM(node->data);
 947
 948         path = folder_item_get_path(item);
 949         if (!is_dir_exist(path)) {
 950                 debug_print("folder '%s' not found. removing...\n", path);
 951                 folder_item_remove(item);
 952         }
 953         g_free(path);
 954
 955         return FALSE;
 956 }
 957
 958 static void mh_remove_missing_folder_items(Folder *folder)
 959 {
 960         g_return_if_fail(folder != NULL);
 961
 962         debug_print("searching missing folders...\n");
 963
 964         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 965                         mh_remove_missing_folder_items_func, folder);
 966 }
 967
 968 static void mh_scan_tree_recursive(FolderItem *item)
 969 {
 970         Folder *folder;
 971 #ifdef G_OS_WIN32
 972         GDir *dir;
 973 #else
 974         DIR *dp;
 975         struct dirent *d;
 976 #endif
 977         const gchar *dir_name;
 978         struct stat s;
 979         gchar *real_path, *entry, *utf8entry, *utf8name;
 980         gint n_msg = 0;
 981
 982         g_return_if_fail(item != NULL);
 983         g_return_if_fail(item->folder != NULL);
 984
 985         folder = item->folder;
 986
 987         real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
 988 #ifdef G_OS_WIN32
 989         dir = g_dir_open(real_path, 0, NULL);
 990         if (!dir) {
 991                 g_warning("failed to open directory: %s\n", real_path);
 992                 g_free(real_path);
 993                 return;
 994         }
 995 #else
 996         dp = opendir(real_path);
 997         if (!dp) {
 998                 FILE_OP_ERROR(real_path, "opendir");
 999                 return;
1000         }
1001 #endif
1002         g_free(real_path);
1003
1004         debug_print("scanning %s ...\n",
1005                     item->path ? item->path
1006                     : LOCAL_FOLDER(item->folder)->rootpath);
1007         if (folder->ui_func)
1008                 folder->ui_func(folder, item, folder->ui_func_data);
1009
1010 #ifdef G_OS_WIN32
1011         while ((dir_name = g_dir_read_name(dir)) != NULL) {
1012 #else
1013         while ((d = readdir(dp)) != NULL) {
1014                 dir_name = d->d_name;
1015 #endif
1016                 if (dir_name[0] == '.') continue;
1017
1018                 utf8name = mh_filename_to_utf8(dir_name);
1019                 if (item->path)
1020                         utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
1021                                                 utf8name, NULL);
1022                 else
1023                         utf8entry = g_strdup(utf8name);
1024                 entry = mh_filename_from_utf8(utf8entry);
1025
1026                 if (
1027 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
1028                         d->d_type == DT_DIR ||
1029                         (d->d_type == DT_UNKNOWN &&
1030 #endif
1031                         g_stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
1032 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
1033                         )
1034 #endif
1035                    ) {
1036                         FolderItem *new_item = NULL;
1037                         GNode *node;
1038
1039                         node = item->node;
1040                         for (node = node->children; node != NULL; node = node->next) {
1041                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
1042                                 if (!strcmp2(cur_item->path, entry)) {
1043                                         new_item = cur_item;
1044                                         break;
1045                                 }
1046                         }
1047                         if (!new_item) {
1048                                 debug_print("new folder '%s' found.\n", entry);
1049                                 new_item = folder_item_new(folder, utf8name, utf8entry);
1050                                 folder_item_append(item, new_item);
1051                         }
1052
1053                         if (!item->path) {
1054                                 if (!folder->inbox &&
1055                                     !strcmp(dir_name, INBOX_DIR)) {
1056                                         new_item->stype = F_INBOX;
1057                                         folder->inbox = new_item;
1058                                 } else if (!folder->outbox &&
1059                                            !strcmp(dir_name, OUTBOX_DIR)) {
1060                                         new_item->stype = F_OUTBOX;
1061                                         folder->outbox = new_item;
1062                                 } else if (!folder->draft &&
1063                                            !strcmp(dir_name, DRAFT_DIR)) {
1064                                         new_item->stype = F_DRAFT;
1065                                         folder->draft = new_item;
1066                                 } else if (!folder->queue &&
1067                                            !strcmp(dir_name, QUEUE_DIR)) {
1068                                         new_item->stype = F_QUEUE;
1069                                         folder->queue = new_item;
1070                                 } else if (!folder->trash &&
1071                                            !strcmp(dir_name, TRASH_DIR)) {
1072                                         new_item->stype = F_TRASH;
1073                                         folder->trash = new_item;
1074                                 }
1075                         }
1076
1077                         mh_scan_tree_recursive(new_item);
1078                 } else if (to_number(dir_name) > 0) n_msg++;
1079
1080                 g_free(entry);
1081                 g_free(utf8entry);
1082                 g_free(utf8name);
1083         }
1084
1085 #ifdef G_OS_WIN32
1086         g_dir_close(dir);
1087 #else
1088         closedir(dp);
1089 #endif
1090
1091         item->mtime = time(NULL);
1092 }
1093
1094 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1095 {
1096         FolderItem *item = node->data;
1097         gchar **paths = data;
1098         const gchar *oldpath = paths[0];
1099         const gchar *newpath = paths[1];
1100         gchar *base;
1101         gchar *new_itempath;
1102         gint oldpathlen;
1103
1104         oldpathlen = strlen(oldpath);
1105         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1106                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1107                 return TRUE;
1108         }
1109
1110         base = item->path + oldpathlen;
1111         while (*base == G_DIR_SEPARATOR) base++;
1112         if (*base == '\0')
1113                 new_itempath = g_strdup(newpath);
1114         else
1115                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1116                                            NULL);
1117         g_free(item->path);
1118         item->path = new_itempath;
1119
1120         return FALSE;
1121 }
1122
1123 static gchar *mh_filename_from_utf8(const gchar *path)
1124 {
1125         gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
1126
1127         if (!real_path) {
1128                 g_warning("mh_filename_from_utf8: faild to convert character set\n");
1129                 real_path = g_strdup(path);
1130         }
1131
1132         return real_path;
1133 }
1134
1135 static gchar *mh_filename_to_utf8(const gchar *path)
1136 {
1137         gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
1138         if (!utf8path) {
1139                 g_warning("mh_filename_to_utf8: faild to convert character set\n");
1140                 utf8path = g_strdup(path);
1141         }
1142
1143         return utf8path;
1144 }
1145
1146 static gint sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1147 {
1148         MsgInfo *msginfo_a = (MsgInfo *) a;
1149         MsgInfo *msginfo_b = (MsgInfo *) b;
1150
1151         return (msginfo_a->msgnum - msginfo_b->msgnum);
1152 }
1153
1154 static gchar *get_unseen_seq_name(void)
1155 {
1156         static gchar *seq_name = NULL;
1157         if (!seq_name) {
1158                 gchar buf[BUFFSIZE];
1159                 gchar *tmp;
1160                 gchar *profile_path = g_strconcat(
1161                         get_home_dir(), G_DIR_SEPARATOR_S,
1162                         ".mh_profile", NULL);
1163                 FILE *fp = g_fopen(profile_path, "r");
1164                 if (fp) {
1165                         while (fgets(buf, sizeof(buf), fp) != NULL) {
1166                                 if (!strncmp(buf, "Unseen-Sequence:", strlen("Unseen-Sequence:"))) {
1167                                         gchar *seq_tmp = buf+strlen("Unseen-Sequence:");
1168                                         while (*seq_tmp == ' ')
1169                                                 seq_tmp++;
1170                                         seq_name = g_strdup(seq_tmp);
1171                                         seq_name = strretchomp(seq_name);
1172                                         break;
1173                                 }
1174                         }
1175                         fclose(fp);
1176                 }
1177                 if (!seq_name)
1178                         seq_name = g_strdup("unseen");
1179                 tmp = g_strdup_printf("%s:", seq_name);
1180                 g_free(seq_name);
1181                 seq_name = tmp;
1182         }
1183         return seq_name;
1184 }
1185
1186 static gint mh_get_flags(Folder *folder, FolderItem *item,
1187                            MsgInfoList *msginfo_list, GRelation *msgflags)
1188 {
1189         gchar *mh_sequences_filename;
1190         FILE *mh_sequences_file;
1191         gchar buf[BUFFSIZE];
1192         gchar *unseen_list = NULL;
1193         gchar *path;
1194         MsgInfoList *mcur = NULL;
1195 /*
1196         GTimer *timer = g_timer_new();
1197         g_timer_start(timer);
1198 */
1199         if (!item)
1200                 return 0;
1201
1202         /* don't update from .mh_sequences if the item's opened: mails may have
1203          * been marked read/unread and it's not yet written in the file. */
1204         if (item->opened)
1205                 return 0;
1206
1207         path = folder_item_get_path(item);
1208
1209         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
1210                                             ".mh_sequences", NULL);
1211         g_free(path);
1212         if ((mh_sequences_file = g_fopen(mh_sequences_filename, "r+b")) != NULL) {
1213                 while (fgets(buf, sizeof(buf), mh_sequences_file) != NULL) {
1214                         if (!strncmp(buf, get_unseen_seq_name(), strlen(get_unseen_seq_name()))) {
1215                                 unseen_list = g_strdup(buf+strlen(get_unseen_seq_name()));
1216                                 break;
1217                         }
1218                 }
1219                 fclose(mh_sequences_file);
1220         }
1221
1222         g_free(mh_sequences_filename);
1223
1224         if (unseen_list) {
1225                 gchar *cur = NULL;
1226                 gchar *token = NULL, *next = NULL, *boundary = NULL;
1227                 gint num = 0;
1228                 GHashTable *unseen_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1229
1230                 cur = unseen_list = strretchomp(unseen_list);
1231                 debug_print("found unseen list in .mh_sequences: %s\n", unseen_list);
1232 next_token:
1233                 while (*cur && *cur == ' ')
1234                         cur++;
1235
1236                 if ((next = strchr(cur, ' ')) != NULL) {
1237                         token = cur;
1238                         cur = next+1;
1239                         *next = '\0';
1240                 } else {
1241                         token = cur;
1242                         cur = NULL;
1243                 }
1244
1245                 if ((boundary = strchr(token, '-')) != NULL) {
1246                         gchar *start, *end;
1247                         int i;
1248                         start = token;
1249                         end = boundary+1;
1250                         *boundary='\0';
1251                         for (i = atoi(start); i <= atoi(end); i++) {
1252                                 g_hash_table_insert(unseen_table, GINT_TO_POINTER(i), GINT_TO_POINTER(1));
1253                         }
1254                 } else if ((num = atoi(token)) > 0) {
1255                         g_hash_table_insert(unseen_table, GINT_TO_POINTER(num), GINT_TO_POINTER(1));
1256                 }
1257
1258                 if (cur)
1259                         goto next_token;
1260                 for (mcur = msginfo_list; mcur; mcur = mcur->next) {
1261                         MsgInfo *msginfo = (MsgInfo *)mcur->data;
1262                         MsgPermFlags flags = msginfo->flags.perm_flags;
1263                         if (g_hash_table_lookup(unseen_table, GINT_TO_POINTER(msginfo->msgnum))) {
1264                                 flags |= MSG_UNREAD;
1265                         } else if (!(flags & MSG_NEW)) { /* don't mark new msgs as read */
1266                                 flags &= ~(MSG_UNREAD);
1267                         }
1268                         if (flags != msginfo->flags.perm_flags)
1269                                 g_relation_insert(msgflags, msginfo, GINT_TO_POINTER(flags));
1270                 }
1271                 g_hash_table_destroy(unseen_table);
1272                 g_free(unseen_list);
1273         }
1274 /*
1275         g_timer_stop(timer);
1276         printf("mh_get_flags: %f secs\n", g_timer_elapsed(timer, NULL));
1277         g_timer_destroy(timer);
1278 */
1279         return 0;
1280 }
1281
1282 static void mh_write_sequences(FolderItem *item, gboolean remove_unseen)
1283 {
1284         gchar *mh_sequences_old, *mh_sequences_new;
1285         FILE *mh_sequences_old_fp, *mh_sequences_new_fp;
1286         gchar buf[BUFFSIZE];
1287         gchar *path = NULL;
1288 /*
1289         GTimer *timer = g_timer_new();
1290         g_timer_start(timer);
1291 */
1292         if (!item)
1293                 return;
1294
1295         path = folder_item_get_path(item);
1296
1297         mh_sequences_old = g_strconcat(path, G_DIR_SEPARATOR_S,
1298                                             ".mh_sequences", NULL);
1299         mh_sequences_new = g_strconcat(path, G_DIR_SEPARATOR_S,
1300                                             ".mh_sequences.new", NULL);
1301         if ((mh_sequences_new_fp = g_fopen(mh_sequences_new, "w+b")) != NULL) {
1302                 GSList *msglist = folder_item_get_msg_list(item);
1303                 GSList *cur;
1304                 MsgInfo *info = NULL;
1305                 gint start = -1, end = -1;
1306                 gchar *sequence = g_strdup("");
1307                 msglist = g_slist_sort(msglist, sort_cache_list_by_msgnum);
1308                 cur = msglist;
1309
1310                 /* write the unseen sequence if we don't have to scrap it */
1311                 if (!remove_unseen) do {
1312                         info = (MsgInfo *)(cur ? cur->data:NULL);
1313                         if (info && (MSG_IS_UNREAD(info->flags) || MSG_IS_NEW(info->flags))) {
1314                                 if (start < 0)
1315                                         start = end = info->msgnum;
1316                                 else
1317                                         end = info->msgnum;
1318                         } else {
1319                                 if (start > 0 && end > 0) {
1320                                         gchar *tmp = sequence;
1321                                         if (start != end)
1322                                                 sequence = g_strdup_printf("%s %d-%d ", tmp, start, end);
1323                                         else
1324                                                 sequence = g_strdup_printf("%s %d ", tmp, start);
1325                                         g_free(tmp);
1326                                         start = end = -1;
1327                                 }
1328                         }
1329                         cur = cur ? cur->next:NULL;
1330                 } while (cur || (start > 0 && end > 0));
1331                 if (sequence && strlen(sequence)) {
1332                         fprintf(mh_sequences_new_fp, "%s%s\n",
1333                                         get_unseen_seq_name(), sequence);
1334                         debug_print("wrote unseen sequence: '%s%s'\n",
1335                                         get_unseen_seq_name(), sequence);
1336                 }
1337                 /* rewrite the rest of the file */
1338                 if ((mh_sequences_old_fp = g_fopen(mh_sequences_old, "r+b")) != NULL) {
1339                         while (fgets(buf, sizeof(buf), mh_sequences_old_fp) != NULL) {
1340                                 if (strncmp(buf, get_unseen_seq_name(), strlen(get_unseen_seq_name())))
1341                                         fprintf(mh_sequences_new_fp, "%s", buf);
1342                         }
1343                         fclose(mh_sequences_old_fp);
1344                 }
1345
1346                 fclose(mh_sequences_new_fp);
1347                 g_rename(mh_sequences_new, mh_sequences_old);
1348                 g_free(sequence);
1349                 procmsg_msg_list_free(msglist);
1350         }
1351         g_free(mh_sequences_old);
1352         g_free(mh_sequences_new);
1353         g_free(path);
1354 /*
1355         g_timer_stop(timer);
1356         printf("mh_get_flags: %f secs\n", g_timer_elapsed(timer, NULL));
1357         g_timer_destroy(timer);
1358 */
1359 }
1360
1361 static int mh_item_close(Folder *folder, FolderItem *item)
1362 {
1363         mh_write_sequences(item, FALSE);
1364         return 0;
1365 }