src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <dirent.h>
  28 #include <sys/stat.h>
  29 #include <unistd.h>
  30 #include <string.h>
  31 #include <errno.h>
  32
  33 #undef MEASURE_TIME
  34
  35 #ifdef MEASURE_TIME
  36 #  include <sys/time.h>
  37 #endif
  38
  39 #include "intl.h"
  40 #include "folder.h"
  41 #include "mh.h"
  42 #include "procmsg.h"
  43 #include "procheader.h"
  44 #include "utils.h"
  45
  46 static void     mh_folder_init          (Folder         *folder,
  47                                          const gchar    *name,
  48                                          const gchar    *path);
  49
  50 static Folder   *mh_folder_new          (const gchar    *name,
  51                                          const gchar    *path);
  52 static void     mh_folder_destroy       (Folder         *folder);
  53 static gchar   *mh_fetch_msg            (Folder         *folder,
  54                                          FolderItem     *item,
  55                                          gint            num);
  56 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  57                                          FolderItem     *item,
  58                                          gint            num);
  59 static gint     mh_add_msg              (Folder         *folder,
  60                                          FolderItem     *dest,
  61                                          const gchar    *file,
  62                                          MsgFlags       *flags);
  63 static gint     mh_add_msgs             (Folder         *folder,
  64                                          FolderItem     *dest,
  65                                          GSList         *file_list,
  66                                          GRelation      *relation);
  67 static gint     mh_copy_msg             (Folder         *folder,
  68                                          FolderItem     *dest,
  69                                          MsgInfo        *msginfo);
  70 static gint     mh_remove_msg           (Folder         *folder,
  71                                          FolderItem     *item,
  72                                          gint            num);
  73 static gint     mh_remove_all_msg       (Folder         *folder,
  74                                          FolderItem     *item);
  75 static gboolean mh_is_msg_changed       (Folder         *folder,
  76                                          FolderItem     *item,
  77                                          MsgInfo        *msginfo);
  78
  79 static gint     mh_get_num_list         (Folder         *folder,
  80                                          FolderItem     *item,
  81                                          GSList         **list,
  82                                          gboolean       *old_uids_valid);
  83 static gint     mh_scan_tree            (Folder         *folder);
  84
  85 static gint    mh_create_tree           (Folder         *folder);
  86 static FolderItem *mh_create_folder     (Folder         *folder,
  87                                          FolderItem     *parent,
  88                                          const gchar    *name);
  89 static gint    mh_rename_folder         (Folder         *folder,
  90                                          FolderItem     *item,
  91                                          const gchar    *name);
  92 static gint    mh_remove_folder         (Folder         *folder,
  93                                          FolderItem     *item);
  94
  95 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
  96
  97 static MsgInfo *mh_parse_msg                    (const gchar    *file,
  98                                                  FolderItem     *item);
  99 static void     mh_remove_missing_folder_items  (Folder         *folder);
 100 static void     mh_scan_tree_recursive          (FolderItem     *item);
 101
 102 static gboolean mh_rename_folder_func           (GNode          *node,
 103                                                  gpointer        data);
 104 static gchar   *mh_item_get_path                (Folder *folder,
 105                                                  FolderItem *item);
 106
 107 static gboolean mh_scan_required        (Folder         *folder,
 108                                          FolderItem     *item);
 109
 110 static FolderClass mh_class;
 111
 112 FolderClass *mh_get_class(void)
 113 {
 114         if (mh_class.idstr == NULL) {
 115                 mh_class.type = F_MH;
 116                 mh_class.idstr = "mh";
 117                 mh_class.uistr = "MH";
 118
 119                 /* Folder functions */
 120                 mh_class.new_folder = mh_folder_new;
 121                 mh_class.destroy_folder = mh_folder_destroy;
 122                 mh_class.set_xml = folder_local_set_xml;
 123                 mh_class.get_xml = folder_local_get_xml;
 124                 mh_class.scan_tree = mh_scan_tree;
 125                 mh_class.create_tree = mh_create_tree;
 126
 127                 /* FolderItem functions */
 128                 mh_class.item_get_path = mh_item_get_path;
 129                 mh_class.create_folder = mh_create_folder;
 130                 mh_class.rename_folder = mh_rename_folder;
 131                 mh_class.remove_folder = mh_remove_folder;
 132                 mh_class.get_num_list = mh_get_num_list;
 133                 mh_class.scan_required = mh_scan_required;
 134
 135                 /* Message functions */
 136                 mh_class.get_msginfo = mh_get_msginfo;
 137                 mh_class.fetch_msg = mh_fetch_msg;
 138                 mh_class.add_msg = mh_add_msg;
 139                 mh_class.add_msgs = mh_add_msgs;
 140                 mh_class.copy_msg = mh_copy_msg;
 141                 mh_class.remove_msg = mh_remove_msg;
 142                 mh_class.remove_all_msg = mh_remove_all_msg;
 143                 mh_class.is_msg_changed = mh_is_msg_changed;
 144         }
 145
 146         return &mh_class;
 147 }
 148
 149 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 150 {
 151         Folder *folder;
 152
 153         folder = (Folder *)g_new0(MHFolder, 1);
 154         folder->klass = &mh_class;
 155         mh_folder_init(folder, name, path);
 156
 157         return folder;
 158 }
 159
 160 static void mh_folder_destroy(Folder *folder)
 161 {
 162         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 163 }
 164
 165 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 166 {
 167         folder_local_folder_init(folder, name, path);
 168
 169 }
 170
 171 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 172 {
 173         gchar *path;
 174         struct stat s;
 175
 176         path = folder_item_get_path(item);
 177         g_return_val_if_fail(path != NULL, FALSE);
 178
 179         if (stat(path, &s) < 0) {
 180                 FILE_OP_ERROR(path, "stat");
 181                 g_free(path);
 182                 return FALSE;
 183         }
 184
 185         if (s.st_mtime > item->mtime) {
 186                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 187                             path,
 188                             s.st_mtime,
 189                             item->mtime);
 190                 g_free(path);
 191                 return TRUE;
 192         }
 193
 194         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 195                     path,
 196                     s.st_mtime,
 197                     item->mtime);
 198         g_free(path);
 199         return FALSE;
 200 }
 201
 202 void mh_get_last_num(Folder *folder, FolderItem *item)
 203 {
 204         gchar *path;
 205         DIR *dp;
 206         struct dirent *d;
 207         gint max = 0;
 208         gint num;
 209
 210         g_return_if_fail(item != NULL);
 211
 212         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 213
 214         path = folder_item_get_path(item);
 215         g_return_if_fail(path != NULL);
 216         if (change_dir(path) < 0) {
 217                 g_free(path);
 218                 return;
 219         }
 220         g_free(path);
 221
 222         if ((dp = opendir(".")) == NULL) {
 223                 FILE_OP_ERROR(item->path, "opendir");
 224                 return;
 225         }
 226
 227         while ((d = readdir(dp)) != NULL) {
 228                 if ((num = to_number(d->d_name)) > 0 &&
 229                     dirent_is_regular_file(d)) {
 230                         if (max < num)
 231                                 max = num;
 232                 }
 233         }
 234         closedir(dp);
 235
 236         debug_print("Last number in dir %s = %d\n", item->path, max);
 237         item->last_num = max;
 238 }
 239
 240 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 241 {
 242
 243         gchar *path;
 244         DIR *dp;
 245         struct dirent *d;
 246         gint num, nummsgs = 0;
 247
 248         g_return_val_if_fail(item != NULL, -1);
 249
 250         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path);
 251
 252         *old_uids_valid = TRUE;
 253
 254         path = folder_item_get_path(item);
 255         g_return_val_if_fail(path != NULL, -1);
 256         if (change_dir(path) < 0) {
 257                 g_free(path);
 258                 return -1;
 259         }
 260         g_free(path);
 261
 262         if ((dp = opendir(".")) == NULL) {
 263                 FILE_OP_ERROR(item->path, "opendir");
 264                 return -1;
 265         }
 266
 267         while ((d = readdir(dp)) != NULL) {
 268                 if ((num = to_number(d->d_name)) > 0) {
 269                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 270                         nummsgs++;
 271                 }
 272         }
 273         closedir(dp);
 274
 275         item->mtime = time(NULL);
 276         return nummsgs;
 277 }
 278
 279 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 280 {
 281         gchar *path;
 282         gchar *file;
 283
 284         g_return_val_if_fail(item != NULL, NULL);
 285         g_return_val_if_fail(num > 0, NULL);
 286
 287         path = folder_item_get_path(item);
 288         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 289         g_free(path);
 290         if (!is_file_exist(file)) {
 291                 g_free(file);
 292                 return NULL;
 293         }
 294
 295         return file;
 296 }
 297
 298 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 299 {
 300         MsgInfo *msginfo;
 301         gchar *file;
 302
 303         g_return_val_if_fail(item != NULL, NULL);
 304         g_return_val_if_fail(num > 0, NULL);
 305
 306         file = mh_fetch_msg(folder, item, num);
 307         if (!file) return NULL;
 308
 309         msginfo = mh_parse_msg(file, item);
 310         if (msginfo)
 311                 msginfo->msgnum = num;
 312
 313         g_free(file);
 314
 315         return msginfo;
 316 }
 317
 318 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 319 {
 320         gchar *destfile;
 321         gchar *destpath;
 322
 323         destpath = folder_item_get_path(dest);
 324         g_return_val_if_fail(destpath != NULL, NULL);
 325
 326         if (!is_dir_exist(destpath))
 327                 make_dir_hier(destpath);
 328
 329         for (;;) {
 330                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 331                                            dest->last_num + 1);
 332                 if (is_file_entry_exist(destfile)) {
 333                         dest->last_num++;
 334                         g_free(destfile);
 335                 } else
 336                         break;
 337         }
 338
 339         g_free(destpath);
 340
 341         return destfile;
 342 }
 343
 344 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 345 {
 346         gint ret;
 347         GSList file_list;
 348         MsgFileInfo fileinfo;
 349
 350         g_return_val_if_fail(file != NULL, -1);
 351
 352         fileinfo.msginfo = NULL;
 353         fileinfo.file = (gchar *)file;
 354         fileinfo.flags = flags;
 355         file_list.data = &fileinfo;
 356         file_list.next = NULL;
 357
 358         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 359         return ret;
 360 }
 361
 362 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 363                  GRelation *relation)
 364 {
 365         gchar *destfile;
 366         GSList *cur;
 367         MsgFileInfo *fileinfo;
 368
 369         g_return_val_if_fail(dest != NULL, -1);
 370         g_return_val_if_fail(file_list != NULL, -1);
 371
 372         if (dest->last_num < 0) {
 373                 mh_get_last_num(folder, dest);
 374                 if (dest->last_num < 0) return -1;
 375         }
 376
 377         for (cur = file_list; cur != NULL; cur = cur->next) {
 378                 fileinfo = (MsgFileInfo *)cur->data;
 379
 380                 destfile = mh_get_new_msg_filename(dest);
 381                 if (destfile == NULL) return -1;
 382
 383                 if (link(fileinfo->file, destfile) < 0) {
 384                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 385                                 g_warning(_("can't copy message %s to %s\n"),
 386                                           fileinfo->file, destfile);
 387                                 g_free(destfile);
 388                                 return -1;
 389                         }
 390                 }
 391                 if (relation != NULL)
 392                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 393                 g_free(destfile);
 394                 dest->last_num++;
 395         }
 396
 397         return dest->last_num;
 398 }
 399
 400 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 401 {
 402         gboolean dest_need_scan = FALSE;
 403         gchar *srcfile;
 404         gchar *destfile;
 405         gint filemode = 0;
 406         FolderItemPrefs *prefs;
 407
 408         g_return_val_if_fail(dest != NULL, -1);
 409         g_return_val_if_fail(msginfo != NULL, -1);
 410
 411         if (msginfo->folder == dest) {
 412                 g_warning("the src folder is identical to the dest.\n");
 413                 return -1;
 414         }
 415
 416         if (dest->last_num < 0) {
 417                 mh_get_last_num(folder, dest);
 418                 if (dest->last_num < 0) return -1;
 419         }
 420
 421         prefs = dest->prefs;
 422
 423         srcfile = procmsg_get_message_file(msginfo);
 424         destfile = mh_get_new_msg_filename(dest);
 425         if (!destfile) {
 426                 g_free(srcfile);
 427                 return -1;
 428         }
 429
 430         debug_print("Copying message %s%c%d to %s ...\n",
 431                     msginfo->folder->path, G_DIR_SEPARATOR,
 432                     msginfo->msgnum, dest->path);
 433
 434
 435         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 436         &&  dest->stype != F_QUEUE && dest->stype != F_DRAFT) {
 437                 if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
 438                         g_free(srcfile);
 439                         g_free(destfile);
 440                         return -1;
 441                 }
 442         } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 443                 FILE_OP_ERROR(srcfile, "copy");
 444                 g_free(srcfile);
 445                 g_free(destfile);
 446                 return -1;
 447         }
 448
 449         dest_need_scan = mh_scan_required(dest->folder, dest);
 450         if (!dest_need_scan)
 451                 dest->mtime = time(NULL);
 452
 453
 454         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 455                 if (chmod(destfile, prefs->folder_chmod) < 0)
 456                         FILE_OP_ERROR(destfile, "chmod");
 457
 458                 /* for mark file */
 459                 filemode = prefs->folder_chmod;
 460                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 461                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 462         }
 463
 464         g_free(srcfile);
 465         g_free(destfile);
 466         dest->last_num++;
 467
 468         return dest->last_num;
 469 }
 470
 471 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 472 {
 473         gboolean need_scan = FALSE;
 474         gchar *file;
 475
 476         g_return_val_if_fail(item != NULL, -1);
 477
 478         file = mh_fetch_msg(folder, item, num);
 479         g_return_val_if_fail(file != NULL, -1);
 480
 481         need_scan = mh_scan_required(folder, item);
 482
 483         if (unlink(file) < 0) {
 484                 FILE_OP_ERROR(file, "unlink");
 485                 g_free(file);
 486                 return -1;
 487         }
 488
 489         if (!need_scan)
 490                 item->mtime = time(NULL);
 491
 492         g_free(file);
 493         return 0;
 494 }
 495
 496 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 497 {
 498         gchar *path;
 499         gint val;
 500
 501         g_return_val_if_fail(item != NULL, -1);
 502
 503         path = folder_item_get_path(item);
 504         g_return_val_if_fail(path != NULL, -1);
 505         val = remove_all_numbered_files(path);
 506         g_free(path);
 507
 508         return val;
 509 }
 510
 511 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 512                                   MsgInfo *msginfo)
 513 {
 514         struct stat s;
 515
 516         if (stat(itos(msginfo->msgnum), &s) < 0 ||
 517             msginfo->size  != s.st_size ||
 518             msginfo->mtime != s.st_mtime)
 519                 return TRUE;
 520
 521         return FALSE;
 522 }
 523
 524 static gint mh_scan_tree(Folder *folder)
 525 {
 526         FolderItem *item;
 527         gchar *rootpath;
 528
 529         g_return_val_if_fail(folder != NULL, -1);
 530
 531         if (!folder->node) {
 532                 item = folder_item_new(folder, folder->name, NULL);
 533                 item->folder = folder;
 534                 folder->node = item->node = g_node_new(item);
 535         } else
 536                 item = FOLDER_ITEM(folder->node->data);
 537
 538         rootpath = folder_item_get_path(item);
 539         if (change_dir(rootpath) < 0) {
 540                 g_free(rootpath);
 541                 return -1;
 542         }
 543         g_free(rootpath);
 544
 545         mh_create_tree(folder);
 546         mh_remove_missing_folder_items(folder);
 547         mh_scan_tree_recursive(item);
 548
 549         return 0;
 550 }
 551
 552 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 553 { \
 554         if (!is_dir_exist(dir)) { \
 555                 if (is_file_exist(dir)) { \
 556                         g_warning("File `%s' already exists.\n" \
 557                                     "Can't create folder.", dir); \
 558                         return -1; \
 559                 } \
 560                 if (make_dir(dir) < 0) \
 561                         return -1; \
 562         } \
 563 }
 564
 565 static gint mh_create_tree(Folder *folder)
 566 {
 567         gchar *rootpath;
 568
 569         g_return_val_if_fail(folder != NULL, -1);
 570
 571         CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
 572         rootpath = LOCAL_FOLDER(folder)->rootpath;
 573         MAKE_DIR_IF_NOT_EXIST(rootpath);
 574         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 575         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 576         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 577         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 578         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 579         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 580
 581         return 0;
 582 }
 583
 584 #undef MAKE_DIR_IF_NOT_EXIST
 585
 586 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 587 {
 588         gchar *folder_path, *path;
 589
 590         g_return_val_if_fail(folder != NULL, NULL);
 591         g_return_val_if_fail(item != NULL, NULL);
 592
 593         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 594         g_return_val_if_fail(folder_path != NULL, NULL);
 595
 596         if (folder_path[0] == G_DIR_SEPARATOR) {
 597                 if (item->path)
 598                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 599                                            item->path, NULL);
 600                 else
 601                         path = g_strdup(folder_path);
 602         } else {
 603                 if (item->path)
 604                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 605                                            folder_path, G_DIR_SEPARATOR_S,
 606                                            item->path, NULL);
 607                 else
 608                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 609                                            folder_path, NULL);
 610         }
 611         g_free(folder_path);
 612
 613         return path;
 614 }
 615
 616 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 617                                     const gchar *name)
 618 {
 619         gchar *path;
 620         gchar *fullpath;
 621         FolderItem *new_item;
 622         gchar *mh_sequences_filename;
 623         FILE *mh_sequences_file;
 624
 625         g_return_val_if_fail(folder != NULL, NULL);
 626         g_return_val_if_fail(parent != NULL, NULL);
 627         g_return_val_if_fail(name != NULL, NULL);
 628
 629         path = folder_item_get_path(parent);
 630         if (!is_dir_exist(path))
 631                 if (make_dir_hier(path) != 0)
 632                         return NULL;
 633
 634         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, name, NULL);
 635         g_free(path);
 636
 637         if (make_dir(fullpath) < 0) {
 638                 g_free(fullpath);
 639                 return NULL;
 640         }
 641
 642         g_free(fullpath);
 643
 644         if (parent->path)
 645                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 646                                    NULL);
 647         else
 648                 path = g_strdup(name);
 649         new_item = folder_item_new(folder, name, path);
 650         folder_item_append(parent, new_item);
 651
 652         g_free(path);
 653
 654         path = folder_item_get_path(new_item);
 655         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 656                                             ".mh_sequences", NULL);
 657         if ((mh_sequences_file = fopen(mh_sequences_filename, "a+b")) != NULL) {
 658                 fclose(mh_sequences_file);
 659         }
 660         g_free(mh_sequences_filename);
 661         g_free(path);
 662
 663         return new_item;
 664 }
 665
 666 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 667                              const gchar *name)
 668 {
 669         gchar *oldpath;
 670         gchar *dirname;
 671         gchar *newpath;
 672         gchar *paths[2];
 673
 674         g_return_val_if_fail(folder != NULL, -1);
 675         g_return_val_if_fail(item != NULL, -1);
 676         g_return_val_if_fail(item->path != NULL, -1);
 677         g_return_val_if_fail(name != NULL, -1);
 678
 679         oldpath = folder_item_get_path(item);
 680         if (!is_dir_exist(oldpath))
 681                 make_dir_hier(oldpath);
 682
 683         dirname = g_dirname(oldpath);
 684         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 685         g_free(dirname);
 686
 687         if (rename(oldpath, newpath) < 0) {
 688                 FILE_OP_ERROR(oldpath, "rename");
 689                 g_free(oldpath);
 690                 g_free(newpath);
 691                 return -1;
 692         }
 693
 694         g_free(oldpath);
 695         g_free(newpath);
 696
 697         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 698                 dirname = g_dirname(item->path);
 699                 newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 700                 g_free(dirname);
 701         } else
 702                 newpath = g_strdup(name);
 703
 704         g_free(item->name);
 705         item->name = g_strdup(name);
 706
 707         paths[0] = g_strdup(item->path);
 708         paths[1] = newpath;
 709         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 710                         mh_rename_folder_func, paths);
 711
 712         g_free(paths[0]);
 713         g_free(paths[1]);
 714         return 0;
 715 }
 716
 717 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 718 {
 719         gchar *path;
 720
 721         g_return_val_if_fail(folder != NULL, -1);
 722         g_return_val_if_fail(item != NULL, -1);
 723         g_return_val_if_fail(item->path != NULL, -1);
 724
 725         path = folder_item_get_path(item);
 726         if (remove_dir_recursive(path) < 0) {
 727                 g_warning("can't remove directory `%s'\n", path);
 728                 g_free(path);
 729                 return -1;
 730         }
 731
 732         g_free(path);
 733         folder_item_remove(item);
 734         return 0;
 735 }
 736
 737 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 738 {
 739         MsgInfo *msginfo;
 740         MsgFlags flags;
 741
 742         g_return_val_if_fail(item != NULL, NULL);
 743         g_return_val_if_fail(file != NULL, NULL);
 744
 745         flags.perm_flags = MSG_NEW|MSG_UNREAD;
 746         flags.tmp_flags = 0;
 747
 748         if (item->stype == F_QUEUE) {
 749                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
 750         } else if (item->stype == F_DRAFT) {
 751                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
 752         }
 753
 754         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
 755         if (!msginfo) return NULL;
 756
 757         msginfo->msgnum = atoi(file);
 758         msginfo->folder = item;
 759
 760         return msginfo;
 761 }
 762
 763 #if 0
 764 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
 765 {
 766         gchar *entry;
 767         gboolean result;
 768
 769         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
 770         result = is_dir_exist(entry);
 771         g_free(entry);
 772
 773         return result;
 774 }
 775
 776 /*
 777  * check whether PATH is a Maildir style mailbox.
 778  * This is the case if the 3 subdir: new, cur, tmp are existing.
 779  * This functon assumes that entry is an directory
 780  */
 781 static gboolean mh_is_maildir(const gchar *path)
 782 {
 783         return mh_is_maildir_one(path, "new") &&
 784                mh_is_maildir_one(path, "cur") &&
 785                mh_is_maildir_one(path, "tmp");
 786 }
 787 #endif
 788
 789 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
 790 {
 791         FolderItem *item;
 792         gchar *path;
 793
 794         g_return_val_if_fail(node->data != NULL, FALSE);
 795
 796         if (G_NODE_IS_ROOT(node))
 797                 return FALSE;
 798
 799         item = FOLDER_ITEM(node->data);
 800
 801         path = folder_item_get_path(item);
 802         if (!is_dir_exist(path)) {
 803                 debug_print("folder '%s' not found. removing...\n", path);
 804                 folder_item_remove(item);
 805         }
 806         g_free(path);
 807
 808         return FALSE;
 809 }
 810
 811 static void mh_remove_missing_folder_items(Folder *folder)
 812 {
 813         g_return_if_fail(folder != NULL);
 814
 815         debug_print("searching missing folders...\n");
 816
 817         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 818                         mh_remove_missing_folder_items_func, folder);
 819 }
 820
 821 static void mh_scan_tree_recursive(FolderItem *item)
 822 {
 823         Folder *folder;
 824         DIR *dp;
 825         struct dirent *d;
 826         struct stat s;
 827         gchar *entry;
 828         gint n_msg = 0;
 829
 830         g_return_if_fail(item != NULL);
 831         g_return_if_fail(item->folder != NULL);
 832
 833         folder = item->folder;
 834
 835         dp = opendir(item->path ? item->path : ".");
 836         if (!dp) {
 837                 FILE_OP_ERROR(item->path ? item->path : ".", "opendir");
 838                 return;
 839         }
 840
 841         debug_print("scanning %s ...\n",
 842                     item->path ? item->path
 843                     : LOCAL_FOLDER(item->folder)->rootpath);
 844         if (folder->ui_func)
 845                 folder->ui_func(folder, item, folder->ui_func_data);
 846
 847         while ((d = readdir(dp)) != NULL) {
 848                 if (d->d_name[0] == '.') continue;
 849
 850                 if (item->path)
 851                         entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
 852                                             d->d_name, NULL);
 853                 else
 854                         entry = g_strdup(d->d_name);
 855
 856                 if (
 857 #ifdef HAVE_DIRENT_D_TYPE
 858                         d->d_type == DT_DIR ||
 859                         (d->d_type == DT_UNKNOWN &&
 860 #endif
 861                         stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
 862 #ifdef HAVE_DIRENT_D_TYPE
 863                         )
 864 #endif
 865                    ) {
 866                         FolderItem *new_item = NULL;
 867                         GNode *node;
 868
 869 #if 0
 870                         if (mh_is_maildir(entry)) {
 871                                 g_free(entry);
 872                                 continue;
 873                         }
 874 #endif
 875
 876                         node = item->node;
 877                         for (node = node->children; node != NULL; node = node->next) {
 878                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
 879                                 if (!strcmp2(cur_item->path, entry)) {
 880                                         new_item = cur_item;
 881                                         break;
 882                                 }
 883                         }
 884                         if (!new_item) {
 885                                 debug_print("new folder '%s' found.\n", entry);
 886                                 new_item = folder_item_new(folder, d->d_name, entry);
 887                                 folder_item_append(item, new_item);
 888                         }
 889
 890                         if (!item->path) {
 891                                 if (!folder->inbox &&
 892                                     !strcmp(d->d_name, INBOX_DIR)) {
 893                                         new_item->stype = F_INBOX;
 894                                         folder->inbox = new_item;
 895                                 } else if (!folder->outbox &&
 896                                            !strcmp(d->d_name, OUTBOX_DIR)) {
 897                                         new_item->stype = F_OUTBOX;
 898                                         folder->outbox = new_item;
 899                                 } else if (!folder->draft &&
 900                                            !strcmp(d->d_name, DRAFT_DIR)) {
 901                                         new_item->stype = F_DRAFT;
 902                                         folder->draft = new_item;
 903                                 } else if (!folder->queue &&
 904                                            !strcmp(d->d_name, QUEUE_DIR)) {
 905                                         new_item->stype = F_QUEUE;
 906                                         folder->queue = new_item;
 907                                 } else if (!folder->trash &&
 908                                            !strcmp(d->d_name, TRASH_DIR)) {
 909                                         new_item->stype = F_TRASH;
 910                                         folder->trash = new_item;
 911                                 }
 912                         }
 913
 914                         mh_scan_tree_recursive(new_item);
 915                 } else if (to_number(d->d_name) != -1) n_msg++;
 916
 917                 g_free(entry);
 918         }
 919
 920         closedir(dp);
 921
 922         item->mtime = time(NULL);
 923
 924 /*
 925         if (item->path) {
 926                 gint new, unread, total, min, max;
 927
 928                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
 929                                      &min, &max, 0);
 930                 if (n_msg > total) {
 931                         new += n_msg - total;
 932                         unread += n_msg - total;
 933                 }
 934                 item->new = new;
 935                 item->unread = unread;
 936                 item->total = n_msg;
 937         }
 938 */
 939 }
 940
 941 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
 942 {
 943         FolderItem *item = node->data;
 944         gchar **paths = data;
 945         const gchar *oldpath = paths[0];
 946         const gchar *newpath = paths[1];
 947         gchar *base;
 948         gchar *new_itempath;
 949         gint oldpathlen;
 950
 951         oldpathlen = strlen(oldpath);
 952         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
 953                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
 954                 return TRUE;
 955         }
 956
 957         base = item->path + oldpathlen;
 958         while (*base == G_DIR_SEPARATOR) base++;
 959         if (*base == '\0')
 960                 new_itempath = g_strdup(newpath);
 961         else
 962                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
 963                                            NULL);
 964         g_free(item->path);
 965         item->path = new_itempath;
 966
 967         return FALSE;
 968 }