src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <dirent.h>
  29 #include <sys/stat.h>
  30 #include <unistd.h>
  31 #include <string.h>
  32 #include <errno.h>
  33
  34 #undef MEASURE_TIME
  35
  36 #ifdef MEASURE_TIME
  37 #  include <sys/time.h>
  38 #endif
  39
  40 #include "folder.h"
  41 #include "mh.h"
  42 #include "procmsg.h"
  43 #include "procheader.h"
  44 #include "utils.h"
  45 #include "codeconv.h"
  46
  47 static void     mh_folder_init          (Folder         *folder,
  48                                          const gchar    *name,
  49                                          const gchar    *path);
  50
  51 static Folder   *mh_folder_new          (const gchar    *name,
  52                                          const gchar    *path);
  53 static void     mh_folder_destroy       (Folder         *folder);
  54 static gchar   *mh_fetch_msg            (Folder         *folder,
  55                                          FolderItem     *item,
  56                                          gint            num);
  57 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  58                                          FolderItem     *item,
  59                                          gint            num);
  60 static gint     mh_add_msg              (Folder         *folder,
  61                                          FolderItem     *dest,
  62                                          const gchar    *file,
  63                                          MsgFlags       *flags);
  64 static gint     mh_add_msgs             (Folder         *folder,
  65                                          FolderItem     *dest,
  66                                          GSList         *file_list,
  67                                          GRelation      *relation);
  68 static gint     mh_copy_msg             (Folder         *folder,
  69                                          FolderItem     *dest,
  70                                          MsgInfo        *msginfo);
  71 static gint     mh_remove_msg           (Folder         *folder,
  72                                          FolderItem     *item,
  73                                          gint            num);
  74 static gint     mh_remove_all_msg       (Folder         *folder,
  75                                          FolderItem     *item);
  76 static gboolean mh_is_msg_changed       (Folder         *folder,
  77                                          FolderItem     *item,
  78                                          MsgInfo        *msginfo);
  79
  80 static gint     mh_get_num_list         (Folder         *folder,
  81                                          FolderItem     *item,
  82                                          GSList         **list,
  83                                          gboolean       *old_uids_valid);
  84 static gint     mh_scan_tree            (Folder         *folder);
  85
  86 static gint    mh_create_tree           (Folder         *folder);
  87 static FolderItem *mh_create_folder     (Folder         *folder,
  88                                          FolderItem     *parent,
  89                                          const gchar    *name);
  90 static gint    mh_rename_folder         (Folder         *folder,
  91                                          FolderItem     *item,
  92                                          const gchar    *name);
  93 static gint    mh_remove_folder         (Folder         *folder,
  94                                          FolderItem     *item);
  95
  96 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
  97
  98 static MsgInfo *mh_parse_msg                    (const gchar    *file,
  99                                                  FolderItem     *item);
 100 static void     mh_remove_missing_folder_items  (Folder         *folder);
 101 static gchar    *mh_filename_from_utf8          (const gchar    *path);
 102 static gchar    *mh_filename_to_utf8            (const gchar    *path);
 103 static void     mh_scan_tree_recursive          (FolderItem     *item);
 104
 105 static gboolean mh_rename_folder_func           (GNode          *node,
 106                                                  gpointer        data);
 107 static gchar   *mh_item_get_path                (Folder *folder,
 108                                                  FolderItem *item);
 109
 110 static gboolean mh_scan_required        (Folder         *folder,
 111                                          FolderItem     *item);
 112
 113 static FolderClass mh_class;
 114
 115 FolderClass *mh_get_class(void)
 116 {
 117         if (mh_class.idstr == NULL) {
 118                 mh_class.type = F_MH;
 119                 mh_class.idstr = "mh";
 120                 mh_class.uistr = "MH";
 121
 122                 /* Folder functions */
 123                 mh_class.new_folder = mh_folder_new;
 124                 mh_class.destroy_folder = mh_folder_destroy;
 125                 mh_class.set_xml = folder_local_set_xml;
 126                 mh_class.get_xml = folder_local_get_xml;
 127                 mh_class.scan_tree = mh_scan_tree;
 128                 mh_class.create_tree = mh_create_tree;
 129
 130                 /* FolderItem functions */
 131                 mh_class.item_get_path = mh_item_get_path;
 132                 mh_class.create_folder = mh_create_folder;
 133                 mh_class.rename_folder = mh_rename_folder;
 134                 mh_class.remove_folder = mh_remove_folder;
 135                 mh_class.get_num_list = mh_get_num_list;
 136                 mh_class.scan_required = mh_scan_required;
 137
 138                 /* Message functions */
 139                 mh_class.get_msginfo = mh_get_msginfo;
 140                 mh_class.fetch_msg = mh_fetch_msg;
 141                 mh_class.add_msg = mh_add_msg;
 142                 mh_class.add_msgs = mh_add_msgs;
 143                 mh_class.copy_msg = mh_copy_msg;
 144                 mh_class.remove_msg = mh_remove_msg;
 145                 mh_class.remove_all_msg = mh_remove_all_msg;
 146                 mh_class.is_msg_changed = mh_is_msg_changed;
 147         }
 148
 149         return &mh_class;
 150 }
 151
 152 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 153 {
 154         Folder *folder;
 155
 156         folder = (Folder *)g_new0(MHFolder, 1);
 157         folder->klass = &mh_class;
 158         mh_folder_init(folder, name, path);
 159
 160         return folder;
 161 }
 162
 163 static void mh_folder_destroy(Folder *folder)
 164 {
 165         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 166 }
 167
 168 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 169 {
 170         folder_local_folder_init(folder, name, path);
 171
 172 }
 173
 174 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 175 {
 176         gchar *path;
 177         struct stat s;
 178
 179         path = folder_item_get_path(item);
 180         g_return_val_if_fail(path != NULL, FALSE);
 181
 182         if (stat(path, &s) < 0) {
 183                 FILE_OP_ERROR(path, "stat");
 184                 g_free(path);
 185                 return FALSE;
 186         }
 187
 188         if ((s.st_mtime > item->mtime) &&
 189                 (s.st_mtime - 3600 != item->mtime)) {
 190                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 191                             path,
 192                             s.st_mtime,
 193                             item->mtime);
 194                 g_free(path);
 195                 return TRUE;
 196         }
 197
 198         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 199                     path,
 200                     s.st_mtime,
 201                     item->mtime);
 202         g_free(path);
 203         return FALSE;
 204 }
 205
 206 void mh_get_last_num(Folder *folder, FolderItem *item)
 207 {
 208         gchar *path;
 209         DIR *dp;
 210         struct dirent *d;
 211         gint max = 0;
 212         gint num;
 213
 214         g_return_if_fail(item != NULL);
 215
 216         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 217
 218         path = folder_item_get_path(item);
 219         g_return_if_fail(path != NULL);
 220         if (change_dir(path) < 0) {
 221                 g_free(path);
 222                 return;
 223         }
 224         g_free(path);
 225
 226         if ((dp = opendir(".")) == NULL) {
 227                 FILE_OP_ERROR(item->path, "opendir");
 228                 return;
 229         }
 230
 231         while ((d = readdir(dp)) != NULL) {
 232                 if ((num = to_number(d->d_name)) > 0 &&
 233                     dirent_is_regular_file(d)) {
 234                         if (max < num)
 235                                 max = num;
 236                 }
 237         }
 238         closedir(dp);
 239
 240         debug_print("Last number in dir %s = %d\n", item->path, max);
 241         item->last_num = max;
 242 }
 243
 244 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 245 {
 246
 247         gchar *path;
 248         DIR *dp;
 249         struct dirent *d;
 250         gint num, nummsgs = 0;
 251
 252         g_return_val_if_fail(item != NULL, -1);
 253
 254         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path);
 255
 256         *old_uids_valid = TRUE;
 257
 258         path = folder_item_get_path(item);
 259         g_return_val_if_fail(path != NULL, -1);
 260         if (change_dir(path) < 0) {
 261                 g_free(path);
 262                 return -1;
 263         }
 264         g_free(path);
 265
 266         if ((dp = opendir(".")) == NULL) {
 267                 FILE_OP_ERROR(item->path, "opendir");
 268                 return -1;
 269         }
 270
 271         while ((d = readdir(dp)) != NULL) {
 272                 if ((num = to_number(d->d_name)) > 0) {
 273                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 274                         nummsgs++;
 275                 }
 276         }
 277         closedir(dp);
 278
 279         item->mtime = time(NULL);
 280         return nummsgs;
 281 }
 282
 283 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 284 {
 285         gchar *path;
 286         gchar *file;
 287
 288         g_return_val_if_fail(item != NULL, NULL);
 289         g_return_val_if_fail(num > 0, NULL);
 290
 291         path = folder_item_get_path(item);
 292         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 293
 294         if (!is_file_exist(file)) {
 295                 g_free(file);
 296                 g_free(path);
 297                 return NULL;
 298         }
 299         g_free(path);
 300         return file;
 301 }
 302
 303 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 304 {
 305         MsgInfo *msginfo;
 306         gchar *file;
 307
 308         g_return_val_if_fail(item != NULL, NULL);
 309         g_return_val_if_fail(num > 0, NULL);
 310
 311         file = mh_fetch_msg(folder, item, num);
 312         if (!file) return NULL;
 313
 314         msginfo = mh_parse_msg(file, item);
 315         if (msginfo)
 316                 msginfo->msgnum = num;
 317
 318         g_free(file);
 319
 320         return msginfo;
 321 }
 322
 323 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 324 {
 325         gchar *destfile;
 326         gchar *destpath;
 327
 328         destpath = folder_item_get_path(dest);
 329         g_return_val_if_fail(destpath != NULL, NULL);
 330
 331         if (!is_dir_exist(destpath))
 332                 make_dir_hier(destpath);
 333
 334         for (;;) {
 335                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 336                                            dest->last_num + 1);
 337                 if (is_file_entry_exist(destfile)) {
 338                         dest->last_num++;
 339                         g_free(destfile);
 340                 } else
 341                         break;
 342         }
 343
 344         g_free(destpath);
 345
 346         return destfile;
 347 }
 348
 349 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 350 {
 351         gint ret;
 352         GSList file_list;
 353         MsgFileInfo fileinfo;
 354
 355         g_return_val_if_fail(file != NULL, -1);
 356
 357         fileinfo.msginfo = NULL;
 358         fileinfo.file = (gchar *)file;
 359         fileinfo.flags = flags;
 360         file_list.data = &fileinfo;
 361         file_list.next = NULL;
 362
 363         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 364         return ret;
 365 }
 366
 367 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 368                  GRelation *relation)
 369 {
 370         gchar *destfile;
 371         GSList *cur;
 372         MsgFileInfo *fileinfo;
 373
 374         g_return_val_if_fail(dest != NULL, -1);
 375         g_return_val_if_fail(file_list != NULL, -1);
 376
 377         if (dest->last_num < 0) {
 378                 mh_get_last_num(folder, dest);
 379                 if (dest->last_num < 0) return -1;
 380         }
 381
 382         for (cur = file_list; cur != NULL; cur = cur->next) {
 383                 fileinfo = (MsgFileInfo *)cur->data;
 384
 385                 destfile = mh_get_new_msg_filename(dest);
 386                 if (destfile == NULL) return -1;
 387
 388 #ifdef G_OS_UNIX
 389                 if (link(fileinfo->file, destfile) < 0) {
 390 #endif
 391                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 392                                 g_warning(_("can't copy message %s to %s\n"),
 393                                           fileinfo->file, destfile);
 394                                 g_free(destfile);
 395                                 return -1;
 396                         }
 397 #ifdef G_OS_UNIX
 398                 }
 399 #endif
 400
 401                 if (relation != NULL)
 402                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 403                 g_free(destfile);
 404                 dest->last_num++;
 405         }
 406
 407         return dest->last_num;
 408 }
 409
 410 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 411 {
 412         gboolean dest_need_scan = FALSE;
 413         gchar *srcfile;
 414         gchar *destfile;
 415         gint filemode = 0;
 416         FolderItemPrefs *prefs;
 417
 418         g_return_val_if_fail(dest != NULL, -1);
 419         g_return_val_if_fail(msginfo != NULL, -1);
 420
 421         if (msginfo->folder == dest) {
 422                 g_warning("the src folder is identical to the dest.\n");
 423                 return -1;
 424         }
 425
 426         if (dest->last_num < 0) {
 427                 mh_get_last_num(folder, dest);
 428                 if (dest->last_num < 0) return -1;
 429         }
 430
 431         prefs = dest->prefs;
 432
 433         srcfile = procmsg_get_message_file(msginfo);
 434         destfile = mh_get_new_msg_filename(dest);
 435         if (!destfile) {
 436                 g_free(srcfile);
 437                 return -1;
 438         }
 439
 440         debug_print("Copying message %s%c%d to %s ...\n",
 441                     msginfo->folder->path, G_DIR_SEPARATOR,
 442                     msginfo->msgnum, dest->path);
 443
 444
 445         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 446         && !folder_has_parent_of_type(dest, F_QUEUE)
 447         && !folder_has_parent_of_type(dest, F_DRAFT)) {
 448                 if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
 449                         g_free(srcfile);
 450                         g_free(destfile);
 451                         return -1;
 452                 }
 453         } else if (!(MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 454         && (folder_has_parent_of_type(dest, F_QUEUE)
 455          || folder_has_parent_of_type(dest, F_DRAFT))) {
 456                 g_free(srcfile);
 457                 g_free(destfile);
 458                 return -1;
 459         } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 460                 FILE_OP_ERROR(srcfile, "copy");
 461                 g_free(srcfile);
 462                 g_free(destfile);
 463                 return -1;
 464         }
 465
 466         dest_need_scan = mh_scan_required(dest->folder, dest);
 467         if (!dest_need_scan)
 468                 dest->mtime = time(NULL);
 469
 470
 471         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 472                 if (chmod(destfile, prefs->folder_chmod) < 0)
 473                         FILE_OP_ERROR(destfile, "chmod");
 474
 475                 /* for mark file */
 476                 filemode = prefs->folder_chmod;
 477                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 478                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 479         }
 480
 481         g_free(srcfile);
 482         g_free(destfile);
 483         dest->last_num++;
 484
 485         return dest->last_num;
 486 }
 487
 488 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 489 {
 490         gboolean need_scan = FALSE;
 491         gchar *file;
 492
 493         g_return_val_if_fail(item != NULL, -1);
 494
 495         file = mh_fetch_msg(folder, item, num);
 496         g_return_val_if_fail(file != NULL, -1);
 497
 498         need_scan = mh_scan_required(folder, item);
 499
 500         if (g_unlink(file) < 0) {
 501                 FILE_OP_ERROR(file, "unlink");
 502                 g_free(file);
 503                 return -1;
 504         }
 505
 506         if (!need_scan)
 507                 item->mtime = time(NULL);
 508
 509         g_free(file);
 510         return 0;
 511 }
 512
 513 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 514 {
 515         gchar *path;
 516         gint val;
 517
 518         g_return_val_if_fail(item != NULL, -1);
 519
 520         path = folder_item_get_path(item);
 521         g_return_val_if_fail(path != NULL, -1);
 522         val = remove_all_numbered_files(path);
 523         g_free(path);
 524
 525         return val;
 526 }
 527
 528 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 529                                   MsgInfo *msginfo)
 530 {
 531         struct stat s;
 532
 533         if (g_stat(itos(msginfo->msgnum), &s) < 0 ||
 534             msginfo->size  != s.st_size || (
 535                 (msginfo->mtime - s.st_mtime != 0) &&
 536                 (msginfo->mtime - s.st_mtime != 3600) &&
 537                 (msginfo->mtime - s.st_mtime != -3600)))
 538                 return TRUE;
 539
 540         return FALSE;
 541 }
 542
 543 static gint mh_scan_tree(Folder *folder)
 544 {
 545         FolderItem *item;
 546         gchar *rootpath;
 547
 548         g_return_val_if_fail(folder != NULL, -1);
 549
 550         if (!folder->node) {
 551                 item = folder_item_new(folder, folder->name, NULL);
 552                 item->folder = folder;
 553                 folder->node = item->node = g_node_new(item);
 554         } else
 555                 item = FOLDER_ITEM(folder->node->data);
 556
 557         rootpath = folder_item_get_path(item);
 558         if (change_dir(rootpath) < 0) {
 559                 g_free(rootpath);
 560                 return -1;
 561         }
 562         g_free(rootpath);
 563
 564         mh_create_tree(folder);
 565         mh_remove_missing_folder_items(folder);
 566         mh_scan_tree_recursive(item);
 567
 568         return 0;
 569 }
 570
 571 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 572 { \
 573         if (!is_dir_exist(dir)) { \
 574                 if (is_file_exist(dir)) { \
 575                         g_warning("File `%s' already exists.\n" \
 576                                     "Can't create folder.", dir); \
 577                         return -1; \
 578                 } \
 579                 if (make_dir(dir) < 0) \
 580                         return -1; \
 581         } \
 582 }
 583
 584 static gint mh_create_tree(Folder *folder)
 585 {
 586         gchar *rootpath;
 587
 588         g_return_val_if_fail(folder != NULL, -1);
 589
 590         CHDIR_RETURN_VAL_IF_FAIL(get_mail_base_dir(), -1);
 591         rootpath = LOCAL_FOLDER(folder)->rootpath;
 592         MAKE_DIR_IF_NOT_EXIST(rootpath);
 593         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 594         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 595         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 596         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 597         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 598         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 599
 600         return 0;
 601 }
 602
 603 #undef MAKE_DIR_IF_NOT_EXIST
 604
 605 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 606 {
 607         gchar *folder_path, *path;
 608         gchar *real_path;
 609         g_return_val_if_fail(folder != NULL, NULL);
 610         g_return_val_if_fail(item != NULL, NULL);
 611
 612         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 613         g_return_val_if_fail(folder_path != NULL, NULL);
 614
 615         if (folder_path[0] == G_DIR_SEPARATOR) {
 616                 if (item->path)
 617                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 618                                            item->path, NULL);
 619                 else
 620                         path = g_strdup(folder_path);
 621         } else {
 622                 if (item->path)
 623                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 624                                            folder_path, G_DIR_SEPARATOR_S,
 625                                            item->path, NULL);
 626                 else
 627                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 628                                            folder_path, NULL);
 629         }
 630         g_free(folder_path);
 631         real_path = mh_filename_from_utf8(path);
 632         if (!is_dir_exist(real_path) && is_dir_exist(path)) {
 633                 /* mmh, older version did put utf8 filenames instead of
 634                  * the correct encoding */
 635                 rename(path, real_path);
 636                 folder_item_scan(item);
 637         }
 638
 639         g_free(path);
 640         return real_path;
 641 }
 642
 643 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 644                                     const gchar *name)
 645 {
 646         gchar *path, *real_name;
 647         gchar *fullpath;
 648         FolderItem *new_item;
 649         gchar *mh_sequences_filename;
 650         FILE *mh_sequences_file;
 651
 652         g_return_val_if_fail(folder != NULL, NULL);
 653         g_return_val_if_fail(parent != NULL, NULL);
 654         g_return_val_if_fail(name != NULL, NULL);
 655
 656         path = folder_item_get_path(parent);
 657         if (!is_dir_exist(path))
 658                 if (make_dir_hier(path) != 0)
 659                         return NULL;
 660
 661         real_name = mh_filename_from_utf8(name);
 662         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
 663         g_free(real_name);
 664         g_free(path);
 665
 666         if (make_dir(fullpath) < 0) {
 667                 g_free(fullpath);
 668                 return NULL;
 669         }
 670
 671         g_free(fullpath);
 672
 673         if (parent->path)
 674                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 675                                    NULL);
 676         else
 677                 path = g_strdup(name);
 678         new_item = folder_item_new(folder, name, path);
 679         folder_item_append(parent, new_item);
 680
 681         g_free(path);
 682
 683         path = folder_item_get_path(new_item);
 684         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 685                                             ".mh_sequences", NULL);
 686         if ((mh_sequences_file = g_fopen(mh_sequences_filename, "a+b")) != NULL) {
 687                 fclose(mh_sequences_file);
 688         }
 689         g_free(mh_sequences_filename);
 690         g_free(path);
 691
 692         return new_item;
 693 }
 694
 695 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 696                              const gchar *name)
 697 {
 698         gchar *real_name;
 699         gchar *oldpath;
 700         gchar *dirname;
 701         gchar *newpath, *utf8newpath;
 702         gchar *paths[2];
 703
 704         g_return_val_if_fail(folder != NULL, -1);
 705         g_return_val_if_fail(item != NULL, -1);
 706         g_return_val_if_fail(item->path != NULL, -1);
 707         g_return_val_if_fail(name != NULL, -1);
 708
 709         oldpath = folder_item_get_path(item);
 710         if (!is_dir_exist(oldpath))
 711                 make_dir_hier(oldpath);
 712
 713         dirname = g_path_get_dirname(oldpath);
 714         real_name = mh_filename_from_utf8(name);
 715         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
 716         g_free(real_name);
 717
 718         if (g_rename(oldpath, newpath) < 0) {
 719                 FILE_OP_ERROR(oldpath, "rename");
 720                 g_free(oldpath);
 721                 g_free(newpath);
 722                 return -1;
 723         }
 724
 725         g_free(oldpath);
 726         g_free(newpath);
 727
 728         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 729                 dirname = g_path_get_dirname(item->path);
 730                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
 731                                           name, NULL);
 732                 g_free(dirname);
 733         } else
 734                 utf8newpath = g_strdup(name);
 735
 736         g_free(item->name);
 737         item->name = g_strdup(name);
 738
 739         paths[0] = g_strdup(item->path);
 740         paths[1] = utf8newpath;
 741         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 742                         mh_rename_folder_func, paths);
 743
 744         g_free(paths[0]);
 745         g_free(paths[1]);
 746         return 0;
 747 }
 748
 749 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 750 {
 751         gchar *path;
 752
 753         g_return_val_if_fail(folder != NULL, -1);
 754         g_return_val_if_fail(item != NULL, -1);
 755         g_return_val_if_fail(item->path != NULL, -1);
 756
 757         path = folder_item_get_path(item);
 758         if (remove_dir_recursive(path) < 0) {
 759                 g_warning("can't remove directory `%s'\n", path);
 760                 g_free(path);
 761                 return -1;
 762         }
 763
 764         g_free(path);
 765         folder_item_remove(item);
 766         return 0;
 767 }
 768
 769 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 770 {
 771         MsgInfo *msginfo;
 772         MsgFlags flags;
 773
 774         g_return_val_if_fail(item != NULL, NULL);
 775         g_return_val_if_fail(file != NULL, NULL);
 776
 777         flags.perm_flags = MSG_NEW|MSG_UNREAD;
 778         flags.tmp_flags = 0;
 779
 780         if (folder_has_parent_of_type(item, F_QUEUE)) {
 781                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
 782         } else if (folder_has_parent_of_type(item, F_DRAFT)) {
 783                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
 784         }
 785
 786         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
 787         if (!msginfo) return NULL;
 788
 789         msginfo->msgnum = atoi(file);
 790         msginfo->folder = item;
 791
 792         return msginfo;
 793 }
 794
 795 #if 0
 796 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
 797 {
 798         gchar *entry;
 799         gboolean result;
 800
 801         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
 802         result = is_dir_exist(entry);
 803         g_free(entry);
 804
 805         return result;
 806 }
 807
 808 /*
 809  * check whether PATH is a Maildir style mailbox.
 810  * This is the case if the 3 subdir: new, cur, tmp are existing.
 811  * This functon assumes that entry is an directory
 812  */
 813 static gboolean mh_is_maildir(const gchar *path)
 814 {
 815         return mh_is_maildir_one(path, "new") &&
 816                mh_is_maildir_one(path, "cur") &&
 817                mh_is_maildir_one(path, "tmp");
 818 }
 819 #endif
 820
 821 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
 822 {
 823         FolderItem *item;
 824         gchar *path;
 825
 826         g_return_val_if_fail(node->data != NULL, FALSE);
 827
 828         if (G_NODE_IS_ROOT(node))
 829                 return FALSE;
 830
 831         item = FOLDER_ITEM(node->data);
 832
 833         path = folder_item_get_path(item);
 834         if (!is_dir_exist(path)) {
 835                 debug_print("folder '%s' not found. removing...\n", path);
 836                 folder_item_remove(item);
 837         }
 838         g_free(path);
 839
 840         return FALSE;
 841 }
 842
 843 static void mh_remove_missing_folder_items(Folder *folder)
 844 {
 845         g_return_if_fail(folder != NULL);
 846
 847         debug_print("searching missing folders...\n");
 848
 849         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 850                         mh_remove_missing_folder_items_func, folder);
 851 }
 852
 853 static void mh_scan_tree_recursive(FolderItem *item)
 854 {
 855         Folder *folder;
 856 #ifdef G_OS_WIN32
 857         GDir *dir;
 858 #else
 859         DIR *dp;
 860         struct dirent *d;
 861 #endif
 862         const gchar *dir_name;
 863         struct stat s;
 864         gchar *real_path, *entry, *utf8entry, *utf8name;
 865         gint n_msg = 0;
 866
 867         g_return_if_fail(item != NULL);
 868         g_return_if_fail(item->folder != NULL);
 869
 870         folder = item->folder;
 871
 872         real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
 873 #ifdef G_OS_WIN32
 874         dir = g_dir_open(real_path, 0, NULL);
 875         if (!dir) {
 876                 g_warning("failed to open directory: %s\n", real_path);
 877                 g_free(real_path);
 878                 return;
 879         }
 880 #else
 881         dp = opendir(real_path);
 882         if (!dp) {
 883                 FILE_OP_ERROR(real_path, "opendir");
 884                 return;
 885         }
 886 #endif
 887         g_free(real_path);
 888
 889         debug_print("scanning %s ...\n",
 890                     item->path ? item->path
 891                     : LOCAL_FOLDER(item->folder)->rootpath);
 892         if (folder->ui_func)
 893                 folder->ui_func(folder, item, folder->ui_func_data);
 894
 895 #ifdef G_OS_WIN32
 896         while ((dir_name = g_dir_read_name(dir)) != NULL) {
 897 #else
 898         while ((d = readdir(dp)) != NULL) {
 899                 dir_name = d->d_name;
 900 #endif
 901                 if (dir_name[0] == '.') continue;
 902
 903                 utf8name = mh_filename_to_utf8(dir_name);
 904                 if (item->path)
 905                         utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
 906                                                 utf8name, NULL);
 907                 else
 908                         utf8entry = g_strdup(utf8name);
 909                 entry = mh_filename_from_utf8(utf8entry);
 910
 911                 if (
 912 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
 913                         d->d_type == DT_DIR ||
 914                         (d->d_type == DT_UNKNOWN &&
 915 #endif
 916                         g_stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
 917 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
 918                         )
 919 #endif
 920                    ) {
 921                         FolderItem *new_item = NULL;
 922                         GNode *node;
 923
 924 #if 0
 925                         if (mh_is_maildir(entry)) {
 926                                 g_free(entry);
 927                                 g_free(utf8entry);
 928                                 g_free(utf8name);
 929                                 continue;
 930                         }
 931 #endif
 932
 933                         node = item->node;
 934                         for (node = node->children; node != NULL; node = node->next) {
 935                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
 936                                 if (!strcmp2(cur_item->path, entry)) {
 937                                         new_item = cur_item;
 938                                         break;
 939                                 }
 940                         }
 941                         if (!new_item) {
 942                                 debug_print("new folder '%s' found.\n", entry);
 943                                 new_item = folder_item_new(folder, utf8name, utf8entry);
 944                                 folder_item_append(item, new_item);
 945                         }
 946
 947                         if (!item->path) {
 948                                 if (!folder->inbox &&
 949                                     !strcmp(dir_name, INBOX_DIR)) {
 950                                         new_item->stype = F_INBOX;
 951                                         folder->inbox = new_item;
 952                                 } else if (!folder->outbox &&
 953                                            !strcmp(dir_name, OUTBOX_DIR)) {
 954                                         new_item->stype = F_OUTBOX;
 955                                         folder->outbox = new_item;
 956                                 } else if (!folder->draft &&
 957                                            !strcmp(dir_name, DRAFT_DIR)) {
 958                                         new_item->stype = F_DRAFT;
 959                                         folder->draft = new_item;
 960                                 } else if (!folder->queue &&
 961                                            !strcmp(dir_name, QUEUE_DIR)) {
 962                                         new_item->stype = F_QUEUE;
 963                                         folder->queue = new_item;
 964                                 } else if (!folder->trash &&
 965                                            !strcmp(dir_name, TRASH_DIR)) {
 966                                         new_item->stype = F_TRASH;
 967                                         folder->trash = new_item;
 968                                 }
 969                         }
 970
 971                         mh_scan_tree_recursive(new_item);
 972                 } else if (to_number(dir_name) > 0) n_msg++;
 973
 974                 g_free(entry);
 975                 g_free(utf8entry);
 976                 g_free(utf8name);
 977         }
 978
 979 #ifdef G_OS_WIN32
 980         g_dir_close(dir);
 981 #else
 982         closedir(dp);
 983 #endif
 984
 985         item->mtime = time(NULL);
 986
 987 /*
 988         if (item->path) {
 989                 gint new, unread, total, min, max;
 990
 991                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
 992                                      &min, &max, 0);
 993                 if (n_msg > total) {
 994                         new += n_msg - total;
 995                         unread += n_msg - total;
 996                 }
 997                 item->new = new;
 998                 item->unread = unread;
 999                 item->total = n_msg;
1000         }
1001 */
1002 }
1003
1004 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1005 {
1006         FolderItem *item = node->data;
1007         gchar **paths = data;
1008         const gchar *oldpath = paths[0];
1009         const gchar *newpath = paths[1];
1010         gchar *base;
1011         gchar *new_itempath;
1012         gint oldpathlen;
1013
1014         oldpathlen = strlen(oldpath);
1015         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1016                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1017                 return TRUE;
1018         }
1019
1020         base = item->path + oldpathlen;
1021         while (*base == G_DIR_SEPARATOR) base++;
1022         if (*base == '\0')
1023                 new_itempath = g_strdup(newpath);
1024         else
1025                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1026                                            NULL);
1027         g_free(item->path);
1028         item->path = new_itempath;
1029
1030         return FALSE;
1031 }
1032
1033 static gchar *mh_filename_from_utf8(const gchar *path)
1034 {
1035         gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
1036
1037         if (!real_path) {
1038                 g_warning("mh_filename_from_utf8: faild to convert character set\n");
1039                 real_path = g_strdup(path);
1040         }
1041
1042         return real_path;
1043 }
1044
1045 static gchar *mh_filename_to_utf8(const gchar *path)
1046 {
1047         gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
1048         if (!utf8path) {
1049                 g_warning("mh_filename_to_utf8: faild to convert character set\n");
1050                 utf8path = g_strdup(path);
1051         }
1052
1053         return utf8path;
1054 }