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 #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 #include <time.h>
  34
  35 #include "folder.h"
  36 #include "mh.h"
  37 #include "procmsg.h"
  38 #include "procheader.h"
  39 #include "utils.h"
  40 #include "codeconv.h"
  41 #include "statusbar.h"
  42 #include "gtkutils.h"
  43 #include "timing.h"
  44
  45 /* Define possible missing constants for Windows. */
  46 #ifdef G_OS_WIN32
  47 # ifndef S_IRGRP
  48 # define S_IRGRP 0
  49 # define S_IWGRP 0
  50 # endif
  51 # ifndef S_IROTH
  52 # define S_IROTH 0
  53 # define S_IWOTH 0
  54 # endif
  55 #endif
  56
  57
  58 static void     mh_folder_init          (Folder         *folder,
  59                                          const gchar    *name,
  60                                          const gchar    *path);
  61
  62 static Folder   *mh_folder_new          (const gchar    *name,
  63                                          const gchar    *path);
  64 static void     mh_folder_destroy       (Folder         *folder);
  65 static gchar   *mh_fetch_msg            (Folder         *folder,
  66                                          FolderItem     *item,
  67                                          gint            num);
  68 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  69                                          FolderItem     *item,
  70                                          gint            num);
  71 static gint     mh_add_msg              (Folder         *folder,
  72                                          FolderItem     *dest,
  73                                          const gchar    *file,
  74                                          MsgFlags       *flags);
  75 static gint     mh_add_msgs             (Folder         *folder,
  76                                          FolderItem     *dest,
  77                                          GSList         *file_list,
  78                                          GHashTable     *relation);
  79 static gint     mh_copy_msg             (Folder         *folder,
  80                                          FolderItem     *dest,
  81                                          MsgInfo        *msginfo);
  82 static gint     mh_copy_msgs            (Folder         *folder,
  83                                          FolderItem     *dest,
  84                                          MsgInfoList    *msglist,
  85                                          GHashTable     *relation);
  86 static gint     mh_remove_msg           (Folder         *folder,
  87                                          FolderItem     *item,
  88                                          gint            num);
  89 static gint     mh_remove_msgs          (Folder         *folder,
  90                                          FolderItem     *item,
  91                                          MsgInfoList    *msglist,
  92                                          GHashTable     *relation);
  93 static gint     mh_remove_all_msg       (Folder         *folder,
  94                                          FolderItem     *item);
  95 static gboolean mh_is_msg_changed       (Folder         *folder,
  96                                          FolderItem     *item,
  97                                          MsgInfo        *msginfo);
  98
  99 static gint     mh_get_num_list         (Folder         *folder,
 100                                          FolderItem     *item,
 101                                          GSList         **list,
 102                                          gboolean       *old_uids_valid);
 103 static gint     mh_scan_tree            (Folder         *folder);
 104
 105 static gint    mh_create_tree           (Folder         *folder);
 106 static FolderItem *mh_create_folder     (Folder         *folder,
 107                                          FolderItem     *parent,
 108                                          const gchar    *name);
 109 static gint    mh_rename_folder         (Folder         *folder,
 110                                          FolderItem     *item,
 111                                          const gchar    *name);
 112 static gint    mh_remove_folder         (Folder         *folder,
 113                                          FolderItem     *item);
 114
 115 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
 116
 117 static MsgInfo *mh_parse_msg                    (const gchar    *file,
 118                                                  FolderItem     *item);
 119 static void     mh_remove_missing_folder_items  (Folder         *folder);
 120 static gchar    *mh_filename_from_utf8          (const gchar    *path);
 121 static gchar    *mh_filename_to_utf8            (const gchar    *path);
 122 static void     mh_scan_tree_recursive          (FolderItem     *item);
 123
 124 static gboolean mh_rename_folder_func           (GNode          *node,
 125                                                  gpointer        data);
 126 static gchar   *mh_item_get_path                (Folder *folder,
 127                                                  FolderItem *item);
 128
 129 static gboolean mh_scan_required        (Folder         *folder,
 130                                          FolderItem     *item);
 131 static void mh_set_mtime                (Folder         *folder,
 132                                          FolderItem *item);
 133 static int mh_item_close                (Folder         *folder,
 134                                          FolderItem     *item);
 135 #if 0
 136 static gint mh_get_flags                (Folder *folder, FolderItem *item,
 137                                          MsgInfoList *msginfo_list, GHashTable *msgflags);
 138 #endif
 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.set_mtime = mh_set_mtime;
 166                 mh_class.close = mh_item_close;
 167                 mh_class.get_flags = NULL; /*mh_get_flags */;
 168
 169                 /* Message functions */
 170                 mh_class.get_msginfo = mh_get_msginfo;
 171                 mh_class.fetch_msg = mh_fetch_msg;
 172                 mh_class.add_msg = mh_add_msg;
 173                 mh_class.add_msgs = mh_add_msgs;
 174                 mh_class.copy_msg = mh_copy_msg;
 175                 mh_class.copy_msgs = mh_copy_msgs;
 176                 mh_class.remove_msg = mh_remove_msg;
 177                 mh_class.remove_msgs = mh_remove_msgs;
 178                 mh_class.remove_all_msg = mh_remove_all_msg;
 179                 mh_class.is_msg_changed = mh_is_msg_changed;
 180         }
 181
 182         return &mh_class;
 183 }
 184
 185 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 186 {
 187         Folder *folder;
 188
 189         folder = (Folder *)g_new0(MHFolder, 1);
 190         folder->klass = &mh_class;
 191         mh_folder_init(folder, name, path);
 192
 193         return folder;
 194 }
 195
 196 static void mh_folder_destroy(Folder *folder)
 197 {
 198         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 199 }
 200
 201 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 202 {
 203         folder_local_folder_init(folder, name, path);
 204
 205 }
 206
 207 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 208 {
 209         gchar *path;
 210         struct stat s;
 211
 212         path = folder_item_get_path(item);
 213         cm_return_val_if_fail(path != NULL, FALSE);
 214
 215         if (g_stat(path, &s) < 0) {
 216                 FILE_OP_ERROR(path, "stat");
 217                 g_free(path);
 218                 return FALSE;
 219         }
 220
 221         if ((s.st_mtime > item->mtime) &&
 222                 (s.st_mtime - 3600 != item->mtime)) {
 223                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 224                             path?path:"(null)",
 225                             (long int) s.st_mtime,
 226                             (long int) item->mtime);
 227                 g_free(path);
 228                 return TRUE;
 229         }
 230
 231         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 232                     path?path:"(null)",
 233                     (long int) s.st_mtime,
 234                     (long int) item->mtime);
 235         g_free(path);
 236         return FALSE;
 237 }
 238
 239 static void mh_get_last_num(Folder *folder, FolderItem *item)
 240 {
 241         gchar *path;
 242         DIR *dp;
 243         struct dirent *d;
 244         gint max = 0;
 245         gint num;
 246
 247         cm_return_if_fail(item != NULL);
 248
 249         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path?item->path:"(null)");
 250
 251         path = folder_item_get_path(item);
 252         cm_return_if_fail(path != NULL);
 253         if (change_dir(path) < 0) {
 254                 g_free(path);
 255                 return;
 256         }
 257         g_free(path);
 258
 259         if ((dp = opendir(".")) == NULL) {
 260                 FILE_OP_ERROR(item->path, "opendir");
 261                 return;
 262         }
 263
 264         while ((d = readdir(dp)) != NULL) {
 265                 if ((num = to_number(d->d_name)) > 0 &&
 266                     dirent_is_regular_file(d)) {
 267                         if (max < num)
 268                                 max = num;
 269                 }
 270                 if (num % 2000 == 0)
 271                         GTK_EVENTS_FLUSH();
 272         }
 273         closedir(dp);
 274
 275         debug_print("Last number in dir %s = %d\n", item->path?item->path:"(null)", max);
 276         item->last_num = max;
 277 }
 278
 279 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 280 {
 281
 282         gchar *path;
 283         DIR *dp;
 284         struct dirent *d;
 285         gint num, nummsgs = 0;
 286
 287         cm_return_val_if_fail(item != NULL, -1);
 288
 289         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path?item->path:"(null)");
 290
 291         *old_uids_valid = TRUE;
 292
 293         path = folder_item_get_path(item);
 294         cm_return_val_if_fail(path != NULL, -1);
 295         if (change_dir(path) < 0) {
 296                 g_free(path);
 297                 return -1;
 298         }
 299         g_free(path);
 300
 301         if ((dp = opendir(".")) == NULL) {
 302                 FILE_OP_ERROR(item->path, "opendir");
 303                 return -1;
 304         }
 305
 306         while ((d = readdir(dp)) != NULL) {
 307                 if ((num = to_number(d->d_name)) > 0) {
 308                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 309                         nummsgs++;
 310                 }
 311         }
 312         closedir(dp);
 313
 314         mh_set_mtime(folder, item);
 315         return nummsgs;
 316 }
 317
 318 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 319 {
 320         gchar *path;
 321         gchar *file;
 322
 323         cm_return_val_if_fail(item != NULL, NULL);
 324         cm_return_val_if_fail(num > 0, NULL);
 325
 326         path = folder_item_get_path(item);
 327         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 328
 329         if (!is_file_exist(file)) {
 330                 g_free(file);
 331                 g_free(path);
 332                 return NULL;
 333         }
 334         g_free(path);
 335         return file;
 336 }
 337
 338 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 339 {
 340         MsgInfo *msginfo;
 341         gchar *file;
 342
 343         cm_return_val_if_fail(item != NULL, NULL);
 344         if (num <= 0)
 345                 return NULL;
 346
 347         file = mh_fetch_msg(folder, item, num);
 348         if (!file) return NULL;
 349
 350         msginfo = mh_parse_msg(file, item);
 351         if (msginfo)
 352                 msginfo->msgnum = num;
 353
 354         g_free(file);
 355
 356         return msginfo;
 357 }
 358
 359 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 360 {
 361         gchar *destfile;
 362         gchar *destpath;
 363
 364         destpath = folder_item_get_path(dest);
 365         cm_return_val_if_fail(destpath != NULL, NULL);
 366
 367         if (!is_dir_exist(destpath))
 368                 make_dir_hier(destpath);
 369
 370         for (;;) {
 371                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 372                                            dest->last_num + 1);
 373                 if (is_file_entry_exist(destfile)) {
 374                         dest->last_num++;
 375                         g_free(destfile);
 376                 } else
 377                         break;
 378         }
 379
 380         g_free(destpath);
 381
 382         return destfile;
 383 }
 384
 385 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 386 {
 387         gint ret;
 388         GSList file_list;
 389         MsgFileInfo fileinfo;
 390
 391         cm_return_val_if_fail(file != NULL, -1);
 392
 393         fileinfo.msginfo = NULL;
 394         fileinfo.file = (gchar *)file;
 395         fileinfo.flags = flags;
 396         file_list.data = &fileinfo;
 397         file_list.next = NULL;
 398
 399         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 400         return ret;
 401 }
 402
 403 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 404                  GHashTable *relation)
 405 {
 406         gchar *destfile;
 407         GSList *cur;
 408         MsgFileInfo *fileinfo;
 409
 410         cm_return_val_if_fail(dest != NULL, -1);
 411         cm_return_val_if_fail(file_list != NULL, -1);
 412
 413         if (dest->last_num < 0) {
 414                 mh_get_last_num(folder, dest);
 415                 if (dest->last_num < 0) return -1;
 416         }
 417
 418         for (cur = file_list; cur != NULL; cur = cur->next) {
 419                 fileinfo = (MsgFileInfo *)cur->data;
 420
 421                 destfile = mh_get_new_msg_filename(dest);
 422                 if (destfile == NULL) return -1;
 423
 424 #ifdef G_OS_UNIX
 425                 if (link(fileinfo->file, destfile) < 0) {
 426 #endif
 427                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 428                                 g_warning(_("can't copy message %s to %s\n"),
 429                                           fileinfo->file, destfile);
 430                                 g_free(destfile);
 431                                 return -1;
 432                         }
 433 #ifdef G_OS_UNIX
 434                 }
 435 #endif
 436
 437                 if (relation != NULL)
 438                         g_hash_table_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 439                 g_free(destfile);
 440                 dest->last_num++;
 441         }
 442         mh_write_sequences(dest, TRUE);
 443         return dest->last_num;
 444 }
 445
 446 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 447 {
 448         GSList msglist;
 449
 450         cm_return_val_if_fail(msginfo != NULL, -1);
 451
 452         msglist.data = msginfo;
 453         msglist.next = NULL;
 454
 455         return mh_copy_msgs(folder, dest, &msglist, NULL);
 456 }
 457
 458 static gint mh_copy_msgs(Folder *folder, FolderItem *dest, MsgInfoList *msglist,
 459                          GHashTable *relation)
 460 {
 461         gboolean dest_need_scan = FALSE;
 462         gboolean src_need_scan = FALSE;
 463         FolderItem *src = NULL;
 464         gchar *srcfile;
 465         gchar *destfile;
 466         gint filemode = 0;
 467         FolderItemPrefs *prefs;
 468         MsgInfo *msginfo = NULL;
 469         MsgInfoList *cur = NULL;
 470         gint curnum = 0, total = 0;
 471         gchar *srcpath = NULL;
 472         gboolean full_fetch = FALSE;
 473         time_t last_dest_mtime = (time_t)0;
 474         time_t last_src_mtime = (time_t)0;
 475
 476         cm_return_val_if_fail(dest != NULL, -1);
 477         cm_return_val_if_fail(msglist != NULL, -1);
 478
 479         msginfo = (MsgInfo *)msglist->data;
 480
 481         cm_return_val_if_fail(msginfo != NULL, -1);
 482
 483         if (msginfo->folder == dest) {
 484                 g_warning("the src folder is identical to the dest.\n");
 485                 return -1;
 486         }
 487
 488         if (msginfo->folder->folder != dest->folder)
 489                 full_fetch = TRUE;
 490
 491         if (FOLDER_TYPE(msginfo->folder->folder) == F_MH) {
 492                 src = msginfo->folder;
 493         }
 494
 495         if (dest->last_num < 0) {
 496                 mh_get_last_num(folder, dest);
 497                 if (dest->last_num < 0) return -1;
 498         }
 499
 500         prefs = dest->prefs;
 501
 502         srcpath = folder_item_get_path(msginfo->folder);
 503
 504         dest_need_scan = mh_scan_required(dest->folder, dest);
 505         last_dest_mtime = dest->mtime;
 506
 507         if (src) {
 508                 src_need_scan = mh_scan_required(src->folder, src);
 509                 last_src_mtime = src->mtime;
 510         }
 511
 512         total = g_slist_length(msglist);
 513         if (total > 100) {
 514                 if (MSG_IS_MOVE(msginfo->flags))
 515                         statusbar_print_all(_("Moving messages..."));
 516                 else
 517                         statusbar_print_all(_("Copying messages..."));
 518         }
 519         for (cur = msglist; cur; cur = cur->next) {
 520                 msginfo = (MsgInfo *)cur->data;
 521                 if (!msginfo) {
 522                         goto err_reset_status;
 523                 }
 524                 if (!full_fetch) {
 525                         srcfile = g_strconcat(srcpath,
 526                                 G_DIR_SEPARATOR_S,
 527                                 itos(msginfo->msgnum), NULL);
 528                 } else {
 529                         srcfile = procmsg_get_message_file(msginfo);
 530                 }
 531                 if (!srcfile) {
 532                         goto err_reset_status;
 533                 }
 534                 destfile = mh_get_new_msg_filename(dest);
 535                 if (!destfile) {
 536                         g_free(srcfile);
 537                         goto err_reset_status;
 538                 }
 539
 540                 if (total > 100) {
 541                         statusbar_progress_all(curnum, total, 100);
 542                         if (curnum % 100 == 0)
 543                                 GTK_EVENTS_FLUSH();
 544                         curnum++;
 545                 }
 546
 547                 debug_print("Copying message %s%c%d to %s ...\n",
 548                             msginfo->folder->path, G_DIR_SEPARATOR,
 549                             msginfo->msgnum, dest->path);
 550
 551
 552                 if (MSG_IS_MOVE(msginfo->flags)) {
 553                         msginfo->flags.tmp_flags &= ~MSG_MOVE_DONE;
 554                         if (move_file(srcfile, destfile, TRUE) < 0) {
 555                                 FILE_OP_ERROR(srcfile, "move");
 556                                 if (copy_file(srcfile, destfile, TRUE) < 0) {
 557                                         FILE_OP_ERROR(srcfile, "copy");
 558                                         g_free(srcfile);
 559                                         g_free(destfile);
 560                                         goto err_reset_status;
 561                                 }
 562                         } else {
 563                                 /* say unlinking's not necessary */
 564                                 msginfo->flags.tmp_flags |= MSG_MOVE_DONE;
 565                         }
 566                 } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 567                         FILE_OP_ERROR(srcfile, "copy");
 568                         g_free(srcfile);
 569                         g_free(destfile);
 570                         goto err_reset_status;
 571                 }
 572                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 573                         if (chmod(destfile, prefs->folder_chmod) < 0)
 574                                 FILE_OP_ERROR(destfile, "chmod");
 575
 576                         /* for mark file */
 577                         filemode = prefs->folder_chmod;
 578                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
 579                         if (filemode & S_IROTH) filemode |= S_IWOTH;
 580                 }
 581                 if (relation) {
 582                         if (g_hash_table_lookup(relation, msginfo) != NULL)
 583                                 g_warning("already in : %p", msginfo);
 584
 585                         g_hash_table_insert(relation, msginfo, GINT_TO_POINTER(dest->last_num+1));
 586                 }
 587                 g_free(srcfile);
 588                 g_free(destfile);
 589                 dest->last_num++;
 590         }
 591
 592         g_free(srcpath);
 593         mh_write_sequences(dest, TRUE);
 594
 595         if (dest->mtime == last_dest_mtime && !dest_need_scan) {
 596                 mh_set_mtime(folder, dest);
 597         }
 598
 599         if (src && src->mtime == last_src_mtime && !src_need_scan) {
 600                 mh_set_mtime(folder, src);
 601         }
 602
 603         if (total > 100) {
 604                 statusbar_progress_all(0,0,0);
 605                 statusbar_pop_all();
 606         }
 607         return dest->last_num;
 608 err_reset_status:
 609         g_free(srcpath);
 610         mh_write_sequences(dest, TRUE);
 611         if (total > 100) {
 612                 statusbar_progress_all(0,0,0);
 613                 statusbar_pop_all();
 614         }
 615         return -1;
 616
 617 }
 618
 619 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 620 {
 621         gboolean need_scan = FALSE;
 622         time_t last_mtime = (time_t)0;
 623         gchar *file;
 624
 625         cm_return_val_if_fail(item != NULL, -1);
 626
 627         file = mh_fetch_msg(folder, item, num);
 628         cm_return_val_if_fail(file != NULL, -1);
 629
 630         need_scan = mh_scan_required(folder, item);
 631         last_mtime = item->mtime;
 632
 633         if (claws_unlink(file) < 0) {
 634                 FILE_OP_ERROR(file, "unlink");
 635                 g_free(file);
 636                 return -1;
 637         }
 638
 639         if (item->mtime == last_mtime && !need_scan) {
 640                 mh_set_mtime(folder, item);
 641         }
 642         g_free(file);
 643         return 0;
 644 }
 645
 646 static gint mh_remove_msgs(Folder *folder, FolderItem *item,
 647                     MsgInfoList *msglist, GHashTable *relation)
 648 {
 649         gboolean need_scan = FALSE;
 650         gchar *path, *file;
 651         time_t last_mtime = (time_t)0;
 652         MsgInfoList *cur;
 653         gint total = 0, curnum = 0;
 654
 655         cm_return_val_if_fail(item != NULL, -1);
 656
 657         path = folder_item_get_path(item);
 658
 659         need_scan = mh_scan_required(folder, item);
 660         last_mtime = item->mtime;
 661
 662         total = g_slist_length(msglist);
 663         if (total > 100) {
 664                 statusbar_print_all(_("Deleting messages..."));
 665         }
 666
 667         for (cur = msglist; cur; cur = cur->next) {
 668                 MsgInfo *msginfo = (MsgInfo *)cur->data;
 669                 if (msginfo == NULL)
 670                         continue;
 671                 if (MSG_IS_MOVE(msginfo->flags) && MSG_IS_MOVE_DONE(msginfo->flags)) {
 672                         msginfo->flags.tmp_flags &= ~MSG_MOVE_DONE;
 673                         continue;
 674                 }
 675                 if (total > 100) {
 676                         statusbar_progress_all(curnum, total, 100);
 677                         if (curnum % 100 == 0)
 678                                 GTK_EVENTS_FLUSH();
 679                         curnum++;
 680                 }
 681
 682                 file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 683                 if (file == NULL)
 684                         continue;
 685
 686                 if (claws_unlink(file) < 0) {
 687                         g_free(file);
 688                         continue;
 689                 }
 690
 691                 g_free(file);
 692         }
 693
 694         if (total > 100) {
 695                 statusbar_progress_all(0,0,0);
 696                 statusbar_pop_all();
 697         }
 698         if (item->mtime == last_mtime && !need_scan) {
 699                 mh_set_mtime(folder, item);
 700         }
 701
 702         g_free(path);
 703         return 0;
 704 }
 705
 706 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 707 {
 708         gchar *path;
 709         gint val;
 710
 711         cm_return_val_if_fail(item != NULL, -1);
 712
 713         path = folder_item_get_path(item);
 714         cm_return_val_if_fail(path != NULL, -1);
 715         val = remove_all_numbered_files(path);
 716         g_free(path);
 717
 718         mh_write_sequences(item, TRUE);
 719
 720         return val;
 721 }
 722
 723 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 724                                   MsgInfo *msginfo)
 725 {
 726         struct stat s;
 727
 728         if (g_stat(itos(msginfo->msgnum), &s) < 0 ||
 729             msginfo->size  != s.st_size || (
 730                 (msginfo->mtime - s.st_mtime != 0) &&
 731                 (msginfo->mtime - s.st_mtime != 3600) &&
 732                 (msginfo->mtime - s.st_mtime != -3600)))
 733                 return TRUE;
 734
 735         return FALSE;
 736 }
 737
 738 static gint mh_scan_tree(Folder *folder)
 739 {
 740         FolderItem *item;
 741         gchar *rootpath;
 742
 743         cm_return_val_if_fail(folder != NULL, -1);
 744
 745         if (!folder->node) {
 746                 item = folder_item_new(folder, folder->name, NULL);
 747                 item->folder = folder;
 748                 folder->node = item->node = g_node_new(item);
 749         } else
 750                 item = FOLDER_ITEM(folder->node->data);
 751
 752         rootpath = folder_item_get_path(item);
 753         if (change_dir(rootpath) < 0) {
 754                 g_free(rootpath);
 755                 return -1;
 756         }
 757         g_free(rootpath);
 758
 759         mh_create_tree(folder);
 760         mh_remove_missing_folder_items(folder);
 761         mh_scan_tree_recursive(item);
 762
 763         return 0;
 764 }
 765
 766 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 767 { \
 768         if (!is_dir_exist(dir)) { \
 769                 if (is_file_exist(dir)) { \
 770                         g_warning("File `%s' already exists.\n" \
 771                                     "Can't create folder.", dir); \
 772                         return -1; \
 773                 } \
 774                 if (make_dir_hier(dir) < 0) \
 775                         return -1; \
 776         } \
 777 }
 778
 779 static gint mh_create_tree(Folder *folder)
 780 {
 781         gchar *rootpath, *f;
 782
 783         cm_return_val_if_fail(folder != NULL, -1);
 784
 785         CHDIR_RETURN_VAL_IF_FAIL(get_mail_base_dir(), -1);
 786         rootpath = LOCAL_FOLDER(folder)->rootpath;
 787         MAKE_DIR_IF_NOT_EXIST(rootpath);
 788         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 789
 790         /* Create special directories as needed */
 791         if (folder->inbox != NULL &&
 792                         folder->inbox->path != NULL)
 793                 f = folder->inbox->path;
 794         else
 795                 f = INBOX_DIR;
 796         MAKE_DIR_IF_NOT_EXIST(f);
 797
 798         if (folder->outbox != NULL &&
 799                         folder->outbox->path != NULL)
 800                 f = folder->outbox->path;
 801         else
 802                 f = OUTBOX_DIR;
 803         MAKE_DIR_IF_NOT_EXIST(f);
 804
 805         if (folder->draft != NULL &&
 806                         folder->draft->path != NULL)
 807                 f = folder->draft->path;
 808         else
 809                 f = DRAFT_DIR;
 810         MAKE_DIR_IF_NOT_EXIST(f);
 811
 812         if (folder->queue != NULL &&
 813                         folder->queue->path != NULL)
 814                 f = folder->queue->path;
 815         else
 816                 f = QUEUE_DIR;
 817         MAKE_DIR_IF_NOT_EXIST(f);
 818
 819         if (folder->trash != NULL &&
 820                         folder->trash->path != NULL)
 821                 f = folder->trash->path;
 822         else
 823                 f = TRASH_DIR;
 824         MAKE_DIR_IF_NOT_EXIST(f);
 825
 826         return 0;
 827 }
 828
 829 #undef MAKE_DIR_IF_NOT_EXIST
 830
 831 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 832 {
 833         gchar *folder_path, *path;
 834         gchar *real_path;
 835         cm_return_val_if_fail(folder != NULL, NULL);
 836         cm_return_val_if_fail(item != NULL, NULL);
 837
 838         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 839         cm_return_val_if_fail(folder_path != NULL, NULL);
 840
 841         /* FIXME: [W32] The code below does not correctly merge
 842            relative filenames; there should be a function to handle
 843            this.  */
 844         if ( !is_relative_filename (folder_path) ) {
 845                 if (item->path)
 846                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 847                                            item->path, NULL);
 848                 else
 849                         path = g_strdup(folder_path);
 850         } else {
 851                 if (item->path)
 852                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 853                                            folder_path, G_DIR_SEPARATOR_S,
 854                                            item->path, NULL);
 855                 else
 856                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 857                                            folder_path, NULL);
 858         }
 859         g_free(folder_path);
 860         real_path = mh_filename_from_utf8(path);
 861         if (!is_dir_exist(real_path) && is_dir_exist(path)) {
 862                 /* mmh, older version did put utf8 filenames instead of
 863                  * the correct encoding */
 864                 g_rename(path, real_path);
 865                 folder_item_scan(item);
 866         }
 867
 868         g_free(path);
 869         return real_path;
 870 }
 871
 872 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 873                                     const gchar *name)
 874 {
 875         gchar *path, *real_name;
 876         gchar *fullpath;
 877         FolderItem *new_item;
 878         gchar *mh_sequences_filename;
 879         FILE *mh_sequences_file;
 880
 881         cm_return_val_if_fail(folder != NULL, NULL);
 882         cm_return_val_if_fail(parent != NULL, NULL);
 883         cm_return_val_if_fail(name != NULL, NULL);
 884
 885         path = folder_item_get_path(parent);
 886         if (!is_dir_exist(path))
 887                 if (make_dir_hier(path) != 0)
 888                         return NULL;
 889
 890         real_name = mh_filename_from_utf8(name);
 891         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
 892         g_free(real_name);
 893         g_free(path);
 894
 895         if (make_dir(fullpath) < 0) {
 896                 g_free(fullpath);
 897                 return NULL;
 898         }
 899
 900         g_free(fullpath);
 901
 902         if (parent->path)
 903                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 904                                    NULL);
 905         else
 906                 path = g_strdup(name);
 907         new_item = folder_item_new(folder, name, path);
 908         folder_item_append(parent, new_item);
 909
 910         g_free(path);
 911
 912         path = folder_item_get_path(new_item);
 913         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 914                                             ".mh_sequences", NULL);
 915         if ((mh_sequences_file = g_fopen(mh_sequences_filename, "a+b")) != NULL) {
 916                 fclose(mh_sequences_file);
 917         }
 918         g_free(mh_sequences_filename);
 919         g_free(path);
 920
 921         return new_item;
 922 }
 923
 924 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 925                              const gchar *name)
 926 {
 927         gchar *real_name;
 928         gchar *oldpath;
 929         gchar *dirname;
 930         gchar *newpath, *utf8newpath;
 931         gchar *paths[2];
 932
 933         cm_return_val_if_fail(folder != NULL, -1);
 934         cm_return_val_if_fail(item != NULL, -1);
 935         cm_return_val_if_fail(item->path != NULL, -1);
 936         cm_return_val_if_fail(name != NULL, -1);
 937
 938         oldpath = folder_item_get_path(item);
 939         if (!is_dir_exist(oldpath))
 940                 make_dir_hier(oldpath);
 941
 942         dirname = g_path_get_dirname(oldpath);
 943         real_name = mh_filename_from_utf8(name);
 944         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
 945         g_free(real_name);
 946
 947         if (g_rename(oldpath, newpath) < 0) {
 948                 FILE_OP_ERROR(oldpath, "rename");
 949                 g_free(oldpath);
 950                 g_free(newpath);
 951                 return -1;
 952         }
 953
 954         g_free(oldpath);
 955         g_free(newpath);
 956
 957         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 958                 dirname = g_path_get_dirname(item->path);
 959                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
 960                                           name, NULL);
 961                 g_free(dirname);
 962         } else
 963                 utf8newpath = g_strdup(name);
 964
 965         g_free(item->name);
 966         item->name = g_strdup(name);
 967
 968         paths[0] = g_strdup(item->path);
 969         paths[1] = utf8newpath;
 970         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 971                         mh_rename_folder_func, paths);
 972
 973         g_free(paths[0]);
 974         g_free(paths[1]);
 975         return 0;
 976 }
 977
 978 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 979 {
 980         gchar *path;
 981
 982         cm_return_val_if_fail(folder != NULL, -1);
 983         cm_return_val_if_fail(item != NULL, -1);
 984         cm_return_val_if_fail(item->path != NULL, -1);
 985
 986         path = folder_item_get_path(item);
 987         if (remove_dir_recursive(path) < 0) {
 988                 g_warning("can't remove directory `%s'\n", path);
 989                 g_free(path);
 990                 return -1;
 991         }
 992
 993         g_free(path);
 994         folder_item_remove(item);
 995         return 0;
 996 }
 997
 998 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 999 {
1000         MsgInfo *msginfo;
1001         MsgFlags flags;
1002
1003         cm_return_val_if_fail(item != NULL, NULL);
1004         cm_return_val_if_fail(file != NULL, NULL);
1005
1006         flags.perm_flags = MSG_NEW|MSG_UNREAD;
1007         flags.tmp_flags = 0;
1008
1009         if (folder_has_parent_of_type(item, F_QUEUE)) {
1010                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
1011         } else if (folder_has_parent_of_type(item, F_DRAFT)) {
1012                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
1013         }
1014
1015         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
1016         if (!msginfo) return NULL;
1017
1018         msginfo->msgnum = atoi(file);
1019         msginfo->folder = item;
1020
1021         return msginfo;
1022 }
1023
1024 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
1025 {
1026         FolderItem *item;
1027         gchar *path;
1028
1029         cm_return_val_if_fail(node->data != NULL, FALSE);
1030
1031         if (G_NODE_IS_ROOT(node))
1032                 return FALSE;
1033
1034         item = FOLDER_ITEM(node->data);
1035
1036         path = folder_item_get_path(item);
1037         if (!is_dir_exist(path)) {
1038                 debug_print("folder '%s' not found. removing...\n", path?path:"(null)");
1039                 folder_item_remove(item);
1040         }
1041         g_free(path);
1042
1043         return FALSE;
1044 }
1045
1046 static void mh_remove_missing_folder_items(Folder *folder)
1047 {
1048         cm_return_if_fail(folder != NULL);
1049
1050         debug_print("searching missing folders...\n");
1051
1052         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1053                         mh_remove_missing_folder_items_func, folder);
1054 }
1055
1056 static void mh_scan_tree_recursive(FolderItem *item)
1057 {
1058         Folder *folder;
1059 #ifdef G_OS_WIN32
1060         GDir *dir;
1061 #else
1062         DIR *dp;
1063         struct dirent *d;
1064 #endif
1065         const gchar *dir_name;
1066         struct stat s;
1067         gchar *real_path, *entry, *utf8entry, *utf8name;
1068         gint n_msg = 0;
1069
1070         cm_return_if_fail(item != NULL);
1071         cm_return_if_fail(item->folder != NULL);
1072
1073         folder = item->folder;
1074
1075         real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
1076 #ifdef G_OS_WIN32
1077         dir = g_dir_open(real_path, 0, NULL);
1078         if (!dir) {
1079                 g_warning("failed to open directory: %s\n", real_path);
1080                 g_free(real_path);
1081                 return;
1082         }
1083 #else
1084         dp = opendir(real_path);
1085         if (!dp) {
1086                 FILE_OP_ERROR(real_path, "opendir");
1087                 return;
1088         }
1089 #endif
1090         g_free(real_path);
1091
1092         debug_print("scanning %s ...\n",
1093                     item->path ? item->path
1094                     : LOCAL_FOLDER(item->folder)->rootpath);
1095         if (folder->ui_func)
1096                 folder->ui_func(folder, item, folder->ui_func_data);
1097
1098 #ifdef G_OS_WIN32
1099         while ((dir_name = g_dir_read_name(dir)) != NULL) {
1100 #else
1101         while ((d = readdir(dp)) != NULL) {
1102                 dir_name = d->d_name;
1103 #endif
1104                 if (dir_name[0] == '.') continue;
1105
1106                 utf8name = mh_filename_to_utf8(dir_name);
1107                 if (item->path)
1108                         utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
1109                                                 utf8name, NULL);
1110                 else
1111                         utf8entry = g_strdup(utf8name);
1112                 entry = mh_filename_from_utf8(utf8entry);
1113
1114                 if (
1115 #if !defined(G_OS_WIN32) && !defined(MAEMO) && defined(HAVE_DIRENT_D_TYPE)
1116                         d->d_type == DT_DIR ||
1117                         (d->d_type == DT_UNKNOWN &&
1118 #endif
1119                         g_stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
1120 #if !defined(G_OS_WIN32) && !defined(MAEMO) && defined(HAVE_DIRENT_D_TYPE)
1121                         )
1122 #endif
1123                    ) {
1124                         FolderItem *new_item = NULL;
1125                         GNode *node;
1126
1127                         node = item->node;
1128                         for (node = node->children; node != NULL; node = node->next) {
1129                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
1130                                 gchar *curpath = mh_filename_from_utf8(cur_item->path);
1131                                 if (!strcmp2(curpath, entry)) {
1132                                         new_item = cur_item;
1133                                         g_free(curpath);
1134                                         break;
1135                                 }
1136                                 g_free(curpath);
1137                         }
1138                         if (!new_item) {
1139                                 debug_print("new folder '%s' found.\n", entry);
1140                                 new_item = folder_item_new(folder, utf8name, utf8entry);
1141                                 folder_item_append(item, new_item);
1142                         }
1143
1144                         if (!item->path) {
1145                                 if (!folder->inbox &&
1146                                     !strcmp(dir_name, INBOX_DIR)) {
1147                                         new_item->stype = F_INBOX;
1148                                         folder->inbox = new_item;
1149                                 } else if (!folder->outbox &&
1150                                            !strcmp(dir_name, OUTBOX_DIR)) {
1151                                         new_item->stype = F_OUTBOX;
1152                                         folder->outbox = new_item;
1153                                 } else if (!folder->draft &&
1154                                            !strcmp(dir_name, DRAFT_DIR)) {
1155                                         new_item->stype = F_DRAFT;
1156                                         folder->draft = new_item;
1157                                 } else if (!folder->queue &&
1158                                            !strcmp(dir_name, QUEUE_DIR)) {
1159                                         new_item->stype = F_QUEUE;
1160                                         folder->queue = new_item;
1161                                 } else if (!folder->trash &&
1162                                            !strcmp(dir_name, TRASH_DIR)) {
1163                                         new_item->stype = F_TRASH;
1164                                         folder->trash = new_item;
1165                                 }
1166                         }
1167
1168                         mh_scan_tree_recursive(new_item);
1169                 } else if (to_number(dir_name) > 0) n_msg++;
1170
1171                 g_free(entry);
1172                 g_free(utf8entry);
1173                 g_free(utf8name);
1174         }
1175
1176 #ifdef G_OS_WIN32
1177         g_dir_close(dir);
1178 #else
1179         closedir(dp);
1180 #endif
1181
1182         mh_set_mtime(folder, item);
1183 }
1184
1185 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1186 {
1187         FolderItem *item = node->data;
1188         gchar **paths = data;
1189         const gchar *oldpath = paths[0];
1190         const gchar *newpath = paths[1];
1191         gchar *base;
1192         gchar *new_itempath;
1193         gint oldpathlen;
1194
1195         oldpathlen = strlen(oldpath);
1196         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1197                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1198                 return TRUE;
1199         }
1200
1201         base = item->path + oldpathlen;
1202         while (*base == G_DIR_SEPARATOR) base++;
1203         if (*base == '\0')
1204                 new_itempath = g_strdup(newpath);
1205         else
1206                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1207                                            NULL);
1208         g_free(item->path);
1209         item->path = new_itempath;
1210
1211         return FALSE;
1212 }
1213
1214 static gchar *mh_filename_from_utf8(const gchar *path)
1215 {
1216         gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
1217
1218         if (!real_path) {
1219                 g_warning("mh_filename_from_utf8: failed to convert character set\n");
1220                 real_path = g_strdup(path);
1221         }
1222
1223         return real_path;
1224 }
1225
1226 static gchar *mh_filename_to_utf8(const gchar *path)
1227 {
1228         gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
1229         if (!utf8path) {
1230                 g_warning("mh_filename_to_utf8: failed to convert character set\n");
1231                 utf8path = g_strdup(path);
1232         }
1233
1234         return utf8path;
1235 }
1236
1237 static gint sort_cache_list_by_msgnum(gconstpointer a, gconstpointer b)
1238 {
1239         MsgInfo *msginfo_a = (MsgInfo *) a;
1240         MsgInfo *msginfo_b = (MsgInfo *) b;
1241
1242         return (msginfo_a->msgnum - msginfo_b->msgnum);
1243 }
1244
1245 static gchar *get_unseen_seq_name(void)
1246 {
1247         static gchar *seq_name = NULL;
1248         if (!seq_name) {
1249                 gchar buf[BUFFSIZE];
1250                 gchar *tmp;
1251                 gchar *profile_path = g_strconcat(
1252                         get_home_dir(), G_DIR_SEPARATOR_S,
1253                         ".mh_profile", NULL);
1254                 FILE *fp = g_fopen(profile_path, "r");
1255                 if (fp) {
1256                         while (fgets(buf, sizeof(buf), fp) != NULL) {
1257                                 if (!strncmp(buf, "Unseen-Sequence:", strlen("Unseen-Sequence:"))) {
1258                                         gchar *seq_tmp = buf+strlen("Unseen-Sequence:");
1259                                         while (*seq_tmp == ' ')
1260                                                 seq_tmp++;
1261                                         seq_name = g_strdup(seq_tmp);
1262                                         seq_name = strretchomp(seq_name);
1263                                         break;
1264                                 }
1265                         }
1266                         fclose(fp);
1267                 }
1268                 if (!seq_name)
1269                         seq_name = g_strdup("unseen");
1270                 tmp = g_strdup_printf("%s:", seq_name);
1271                 g_free(seq_name);
1272                 seq_name = tmp;
1273         }
1274         return seq_name;
1275 }
1276
1277 static void mh_write_sequences(FolderItem *item, gboolean remove_unseen)
1278 {
1279         gchar *mh_sequences_old, *mh_sequences_new;
1280         FILE *mh_sequences_old_fp, *mh_sequences_new_fp;
1281         gchar buf[BUFFSIZE];
1282         gchar *path = NULL;
1283         gboolean err = FALSE;
1284         START_TIMING("");
1285
1286         if (!item)
1287                 return;
1288
1289         path = folder_item_get_path(item);
1290
1291         mh_sequences_old = g_strconcat(path, G_DIR_SEPARATOR_S,
1292                                             ".mh_sequences", NULL);
1293         mh_sequences_new = g_strconcat(path, G_DIR_SEPARATOR_S,
1294                                             ".mh_sequences.new", NULL);
1295         if ((mh_sequences_new_fp = g_fopen(mh_sequences_new, "w+b")) != NULL) {
1296                 GSList *msglist = folder_item_get_msg_list(item);
1297                 GSList *cur;
1298                 MsgInfo *info = NULL;
1299                 gint start = -1, end = -1;
1300                 gchar *sequence = g_strdup("");
1301                 gint seq_len = 0;
1302                 msglist = g_slist_sort(msglist, sort_cache_list_by_msgnum);
1303                 cur = msglist;
1304
1305                 /* write the unseen sequence if we don't have to scrap it */
1306                 if (!remove_unseen) do {
1307                         info = (MsgInfo *)(cur ? cur->data:NULL);
1308                         if (info && (MSG_IS_UNREAD(info->flags) || MSG_IS_NEW(info->flags))) {
1309                                 if (start < 0)
1310                                         start = end = info->msgnum;
1311                                 else
1312                                         end = info->msgnum;
1313                         } else {
1314                                 if (start > 0 && end > 0) {
1315                                         gchar tmp[32];
1316                                         gint tmp_len = 0;
1317                                         if (start != end)
1318                                                 snprintf(tmp, 31, " %d-%d", start, end);
1319                                         else
1320                                                 snprintf(tmp, 31, " %d", start);
1321
1322                                         tmp_len = strlen(tmp);
1323                                         sequence = g_realloc(sequence, seq_len+tmp_len+1);
1324                                         strcpy(sequence+seq_len, tmp);
1325                                         seq_len += tmp_len;
1326
1327                                         start = end = -1;
1328                                 }
1329                         }
1330                         cur = cur ? cur->next:NULL;
1331                 } while (cur || (start > 0 && end > 0));
1332                 if (sequence && *sequence) {
1333                         if (fprintf(mh_sequences_new_fp, "%s%s\n",
1334                                         get_unseen_seq_name(), sequence) < 0)
1335                                 err = TRUE;
1336                         else
1337                                 debug_print("wrote unseen sequence: '%s%s'\n",
1338                                         get_unseen_seq_name(), sequence);
1339                 }
1340                 /* rewrite the rest of the file */
1341                 if ((mh_sequences_old_fp = g_fopen(mh_sequences_old, "r+b")) != NULL) {
1342                         while (fgets(buf, sizeof(buf), mh_sequences_old_fp) != NULL) {
1343                                 if (strncmp(buf, get_unseen_seq_name(), strlen(get_unseen_seq_name())))
1344                                         if (fprintf(mh_sequences_new_fp, "%s", buf) < 0) {
1345                                                 err = TRUE;
1346                                                 break;
1347                                         }
1348                         }
1349                         fclose(mh_sequences_old_fp);
1350                 }
1351
1352                 fflush(mh_sequences_new_fp);
1353 #if 0
1354                 fsync(fileno(mh_sequences_new_fp));
1355 #endif
1356                 if (fclose(mh_sequences_new_fp) == EOF)
1357                         err = TRUE;
1358
1359                 if (!err)
1360                         g_rename(mh_sequences_new, mh_sequences_old);
1361                 g_free(sequence);
1362                 procmsg_msg_list_free(msglist);
1363         }
1364         g_free(mh_sequences_old);
1365         g_free(mh_sequences_new);
1366         g_free(path);
1367
1368         END_TIMING();
1369 }
1370
1371 static int mh_item_close(Folder *folder, FolderItem *item)
1372 {
1373         time_t last_mtime = (time_t)0;
1374         gboolean need_scan = mh_scan_required(item->folder, item);
1375         last_mtime = item->mtime;
1376
1377         mh_write_sequences(item, FALSE);
1378
1379         if (item->mtime == last_mtime && !need_scan) {
1380                 mh_set_mtime(folder, item);
1381         }
1382
1383         return 0;
1384 }
1385
1386 static void mh_set_mtime(Folder *folder, FolderItem *item)
1387 {
1388         struct stat s;
1389         gchar *path = folder_item_get_path(item);
1390
1391         cm_return_if_fail(path != NULL);
1392
1393         if (g_stat(path, &s) < 0) {
1394                 FILE_OP_ERROR(path, "stat");
1395                 g_free(path);
1396                 return;
1397         }
1398
1399         item->mtime = s.st_mtime;
1400         debug_print("MH: forced mtime of %s to %ld\n", item->name?item->name:"(null)", item->mtime);
1401         g_free(path);
1402 }