src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <dirent.h>
  29 #include <sys/stat.h>
  30 #include <unistd.h>
  31 #include <string.h>
  32 #include <errno.h>
  33
  34 #undef MEASURE_TIME
  35
  36 #ifdef MEASURE_TIME
  37 #  include <sys/time.h>
  38 #endif
  39
  40 #include "folder.h"
  41 #include "mh.h"
  42 #include "procmsg.h"
  43 #include "procheader.h"
  44 #include "utils.h"
  45 #include "codeconv.h"
  46
  47 /* Define possible missing constants for Windows. */
  48 #ifdef G_OS_WIN32
  49 # ifndef S_IRGRP
  50 # define S_IRGRP 0
  51 # define S_IWGRP 0
  52 # endif
  53 # ifndef S_IROTH
  54 # define S_IROTH 0
  55 # define S_IWOTH 0
  56 # endif
  57 #endif
  58
  59
  60 static void     mh_folder_init          (Folder         *folder,
  61                                          const gchar    *name,
  62                                          const gchar    *path);
  63
  64 static Folder   *mh_folder_new          (const gchar    *name,
  65                                          const gchar    *path);
  66 static void     mh_folder_destroy       (Folder         *folder);
  67 static gchar   *mh_fetch_msg            (Folder         *folder,
  68                                          FolderItem     *item,
  69                                          gint            num);
  70 static MsgInfo *mh_get_msginfo          (Folder         *folder,
  71                                          FolderItem     *item,
  72                                          gint            num);
  73 static gint     mh_add_msg              (Folder         *folder,
  74                                          FolderItem     *dest,
  75                                          const gchar    *file,
  76                                          MsgFlags       *flags);
  77 static gint     mh_add_msgs             (Folder         *folder,
  78                                          FolderItem     *dest,
  79                                          GSList         *file_list,
  80                                          GRelation      *relation);
  81 static gint     mh_copy_msg             (Folder         *folder,
  82                                          FolderItem     *dest,
  83                                          MsgInfo        *msginfo);
  84 static gint     mh_copy_msgs            (Folder         *folder,
  85                                          FolderItem     *dest,
  86                                          MsgInfoList    *msglist,
  87                                          GRelation      *relation);
  88 static gint     mh_remove_msg           (Folder         *folder,
  89                                          FolderItem     *item,
  90                                          gint            num);
  91 static gint     mh_remove_all_msg       (Folder         *folder,
  92                                          FolderItem     *item);
  93 static gboolean mh_is_msg_changed       (Folder         *folder,
  94                                          FolderItem     *item,
  95                                          MsgInfo        *msginfo);
  96
  97 static gint     mh_get_num_list         (Folder         *folder,
  98                                          FolderItem     *item,
  99                                          GSList         **list,
 100                                          gboolean       *old_uids_valid);
 101 static gint     mh_scan_tree            (Folder         *folder);
 102
 103 static gint    mh_create_tree           (Folder         *folder);
 104 static FolderItem *mh_create_folder     (Folder         *folder,
 105                                          FolderItem     *parent,
 106                                          const gchar    *name);
 107 static gint    mh_rename_folder         (Folder         *folder,
 108                                          FolderItem     *item,
 109                                          const gchar    *name);
 110 static gint    mh_remove_folder         (Folder         *folder,
 111                                          FolderItem     *item);
 112
 113 static gchar   *mh_get_new_msg_filename         (FolderItem     *dest);
 114
 115 static MsgInfo *mh_parse_msg                    (const gchar    *file,
 116                                                  FolderItem     *item);
 117 static void     mh_remove_missing_folder_items  (Folder         *folder);
 118 static gchar    *mh_filename_from_utf8          (const gchar    *path);
 119 static gchar    *mh_filename_to_utf8            (const gchar    *path);
 120 static void     mh_scan_tree_recursive          (FolderItem     *item);
 121
 122 static gboolean mh_rename_folder_func           (GNode          *node,
 123                                                  gpointer        data);
 124 static gchar   *mh_item_get_path                (Folder *folder,
 125                                                  FolderItem *item);
 126
 127 static gboolean mh_scan_required        (Folder         *folder,
 128                                          FolderItem     *item);
 129
 130 static FolderClass mh_class;
 131
 132 FolderClass *mh_get_class(void)
 133 {
 134         if (mh_class.idstr == NULL) {
 135                 mh_class.type = F_MH;
 136                 mh_class.idstr = "mh";
 137                 mh_class.uistr = "MH";
 138
 139                 /* Folder functions */
 140                 mh_class.new_folder = mh_folder_new;
 141                 mh_class.destroy_folder = mh_folder_destroy;
 142                 mh_class.set_xml = folder_local_set_xml;
 143                 mh_class.get_xml = folder_local_get_xml;
 144                 mh_class.scan_tree = mh_scan_tree;
 145                 mh_class.create_tree = mh_create_tree;
 146
 147                 /* FolderItem functions */
 148                 mh_class.item_get_path = mh_item_get_path;
 149                 mh_class.create_folder = mh_create_folder;
 150                 mh_class.rename_folder = mh_rename_folder;
 151                 mh_class.remove_folder = mh_remove_folder;
 152                 mh_class.get_num_list = mh_get_num_list;
 153                 mh_class.scan_required = mh_scan_required;
 154
 155                 /* Message functions */
 156                 mh_class.get_msginfo = mh_get_msginfo;
 157                 mh_class.fetch_msg = mh_fetch_msg;
 158                 mh_class.add_msg = mh_add_msg;
 159                 mh_class.add_msgs = mh_add_msgs;
 160                 mh_class.copy_msg = mh_copy_msg;
 161                 mh_class.copy_msgs = mh_copy_msgs;
 162                 mh_class.remove_msg = mh_remove_msg;
 163                 mh_class.remove_all_msg = mh_remove_all_msg;
 164                 mh_class.is_msg_changed = mh_is_msg_changed;
 165         }
 166
 167         return &mh_class;
 168 }
 169
 170 static Folder *mh_folder_new(const gchar *name, const gchar *path)
 171 {
 172         Folder *folder;
 173
 174         folder = (Folder *)g_new0(MHFolder, 1);
 175         folder->klass = &mh_class;
 176         mh_folder_init(folder, name, path);
 177
 178         return folder;
 179 }
 180
 181 static void mh_folder_destroy(Folder *folder)
 182 {
 183         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 184 }
 185
 186 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 187 {
 188         folder_local_folder_init(folder, name, path);
 189
 190 }
 191
 192 gboolean mh_scan_required(Folder *folder, FolderItem *item)
 193 {
 194         gchar *path;
 195         struct stat s;
 196
 197         path = folder_item_get_path(item);
 198         g_return_val_if_fail(path != NULL, FALSE);
 199
 200         if (stat(path, &s) < 0) {
 201                 FILE_OP_ERROR(path, "stat");
 202                 g_free(path);
 203                 return FALSE;
 204         }
 205
 206         if ((s.st_mtime > item->mtime) &&
 207                 (s.st_mtime - 3600 != item->mtime)) {
 208                 debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
 209                             path,
 210                             (long int) s.st_mtime,
 211                             (long int) item->mtime);
 212                 g_free(path);
 213                 return TRUE;
 214         }
 215
 216         debug_print("MH scan not required: %s (%ld <= %ld)\n",
 217                     path,
 218                     (long int) s.st_mtime,
 219                     (long int) item->mtime);
 220         g_free(path);
 221         return FALSE;
 222 }
 223
 224 void mh_get_last_num(Folder *folder, FolderItem *item)
 225 {
 226         gchar *path;
 227         DIR *dp;
 228         struct dirent *d;
 229         gint max = 0;
 230         gint num;
 231
 232         g_return_if_fail(item != NULL);
 233
 234         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 235
 236         path = folder_item_get_path(item);
 237         g_return_if_fail(path != NULL);
 238         if (change_dir(path) < 0) {
 239                 g_free(path);
 240                 return;
 241         }
 242         g_free(path);
 243
 244         if ((dp = opendir(".")) == NULL) {
 245                 FILE_OP_ERROR(item->path, "opendir");
 246                 return;
 247         }
 248
 249         while ((d = readdir(dp)) != NULL) {
 250                 if ((num = to_number(d->d_name)) > 0 &&
 251                     dirent_is_regular_file(d)) {
 252                         if (max < num)
 253                                 max = num;
 254                 }
 255         }
 256         closedir(dp);
 257
 258         debug_print("Last number in dir %s = %d\n", item->path, max);
 259         item->last_num = max;
 260 }
 261
 262 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *old_uids_valid)
 263 {
 264
 265         gchar *path;
 266         DIR *dp;
 267         struct dirent *d;
 268         gint num, nummsgs = 0;
 269
 270         g_return_val_if_fail(item != NULL, -1);
 271
 272         debug_print("mh_get_num_list(): Scanning %s ...\n", item->path);
 273
 274         *old_uids_valid = TRUE;
 275
 276         path = folder_item_get_path(item);
 277         g_return_val_if_fail(path != NULL, -1);
 278         if (change_dir(path) < 0) {
 279                 g_free(path);
 280                 return -1;
 281         }
 282         g_free(path);
 283
 284         if ((dp = opendir(".")) == NULL) {
 285                 FILE_OP_ERROR(item->path, "opendir");
 286                 return -1;
 287         }
 288
 289         while ((d = readdir(dp)) != NULL) {
 290                 if ((num = to_number(d->d_name)) > 0) {
 291                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 292                         nummsgs++;
 293                 }
 294         }
 295         closedir(dp);
 296
 297         item->mtime = time(NULL);
 298         return nummsgs;
 299 }
 300
 301 static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 302 {
 303         gchar *path;
 304         gchar *file;
 305
 306         g_return_val_if_fail(item != NULL, NULL);
 307         g_return_val_if_fail(num > 0, NULL);
 308
 309         path = folder_item_get_path(item);
 310         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 311
 312         if (!is_file_exist(file)) {
 313                 g_free(file);
 314                 g_free(path);
 315                 return NULL;
 316         }
 317         g_free(path);
 318         return file;
 319 }
 320
 321 static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 322 {
 323         MsgInfo *msginfo;
 324         gchar *file;
 325
 326         g_return_val_if_fail(item != NULL, NULL);
 327         g_return_val_if_fail(num > 0, NULL);
 328
 329         file = mh_fetch_msg(folder, item, num);
 330         if (!file) return NULL;
 331
 332         msginfo = mh_parse_msg(file, item);
 333         if (msginfo)
 334                 msginfo->msgnum = num;
 335
 336         g_free(file);
 337
 338         return msginfo;
 339 }
 340
 341 static gchar *mh_get_new_msg_filename(FolderItem *dest)
 342 {
 343         gchar *destfile;
 344         gchar *destpath;
 345
 346         destpath = folder_item_get_path(dest);
 347         g_return_val_if_fail(destpath != NULL, NULL);
 348
 349         if (!is_dir_exist(destpath))
 350                 make_dir_hier(destpath);
 351
 352         for (;;) {
 353                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 354                                            dest->last_num + 1);
 355                 if (is_file_entry_exist(destfile)) {
 356                         dest->last_num++;
 357                         g_free(destfile);
 358                 } else
 359                         break;
 360         }
 361
 362         g_free(destpath);
 363
 364         return destfile;
 365 }
 366
 367 static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 368 {
 369         gint ret;
 370         GSList file_list;
 371         MsgFileInfo fileinfo;
 372
 373         g_return_val_if_fail(file != NULL, -1);
 374
 375         fileinfo.msginfo = NULL;
 376         fileinfo.file = (gchar *)file;
 377         fileinfo.flags = flags;
 378         file_list.data = &fileinfo;
 379         file_list.next = NULL;
 380
 381         ret = mh_add_msgs(folder, dest, &file_list, NULL);
 382         return ret;
 383 }
 384
 385 static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 386                  GRelation *relation)
 387 {
 388         gchar *destfile;
 389         GSList *cur;
 390         MsgFileInfo *fileinfo;
 391
 392         g_return_val_if_fail(dest != NULL, -1);
 393         g_return_val_if_fail(file_list != NULL, -1);
 394
 395         if (dest->last_num < 0) {
 396                 mh_get_last_num(folder, dest);
 397                 if (dest->last_num < 0) return -1;
 398         }
 399
 400         for (cur = file_list; cur != NULL; cur = cur->next) {
 401                 fileinfo = (MsgFileInfo *)cur->data;
 402
 403                 destfile = mh_get_new_msg_filename(dest);
 404                 if (destfile == NULL) return -1;
 405
 406 #ifdef G_OS_UNIX
 407                 if (link(fileinfo->file, destfile) < 0) {
 408 #endif
 409                         if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
 410                                 g_warning(_("can't copy message %s to %s\n"),
 411                                           fileinfo->file, destfile);
 412                                 g_free(destfile);
 413                                 return -1;
 414                         }
 415 #ifdef G_OS_UNIX
 416                 }
 417 #endif
 418
 419                 if (relation != NULL)
 420                         g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
 421                 g_free(destfile);
 422                 dest->last_num++;
 423         }
 424
 425         return dest->last_num;
 426 }
 427
 428 static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 429 {
 430         GSList msglist;
 431
 432         g_return_val_if_fail(msginfo != NULL, -1);
 433
 434         msglist.data = msginfo;
 435         msglist.next = NULL;
 436
 437         return mh_copy_msgs(folder, dest, &msglist, NULL);
 438 }
 439
 440 static gint mh_copy_msgs(Folder *folder, FolderItem *dest, MsgInfoList *msglist,
 441                          GRelation *relation)
 442 {
 443         gboolean dest_need_scan = FALSE;
 444         gchar *srcfile;
 445         gchar *destfile;
 446         gint filemode = 0;
 447         FolderItemPrefs *prefs;
 448         MsgInfo *msginfo = NULL;
 449         gboolean remove_special_headers = FALSE;
 450         MsgInfoList *cur = NULL;
 451         g_return_val_if_fail(dest != NULL, -1);
 452         g_return_val_if_fail(msglist != NULL, -1);
 453
 454         msginfo = (MsgInfo *)msglist->data;
 455
 456         g_return_val_if_fail(msginfo != NULL, -1);
 457
 458         if (msginfo->folder == dest) {
 459                 g_warning("the src folder is identical to the dest.\n");
 460                 return -1;
 461         }
 462
 463         if (dest->last_num < 0) {
 464                 mh_get_last_num(folder, dest);
 465                 if (dest->last_num < 0) return -1;
 466         }
 467
 468         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 469         && !folder_has_parent_of_type(dest, F_QUEUE)
 470         && !folder_has_parent_of_type(dest, F_DRAFT)) {
 471                 /* as every msginfo comes from the same folder, it is supposed they
 472                  * will either match the preceding condition either all or none.
 473                  */
 474                 remove_special_headers = TRUE;
 475         } else if (!(MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 476         && (folder_has_parent_of_type(dest, F_QUEUE)
 477          || folder_has_parent_of_type(dest, F_DRAFT))) {
 478                 return -1;
 479         }
 480
 481         prefs = dest->prefs;
 482
 483         for (cur = msglist; cur; cur = cur->next) {
 484                 msginfo = (MsgInfo *)cur->data;
 485                 if (!msginfo)
 486                         continue;
 487                 srcfile = procmsg_get_message_file(msginfo);
 488                 destfile = mh_get_new_msg_filename(dest);
 489                 if (!destfile) {
 490                         g_free(srcfile);
 491                         continue;
 492                 }
 493
 494                 debug_print("Copying message %s%c%d to %s ...\n",
 495                             msginfo->folder->path, G_DIR_SEPARATOR,
 496                             msginfo->msgnum, dest->path);
 497
 498
 499                 if (remove_special_headers) {
 500                         if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
 501                                 g_free(srcfile);
 502                                 g_free(destfile);
 503                                 continue;
 504                         }
 505                 } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 506                         FILE_OP_ERROR(srcfile, "copy");
 507                         g_free(srcfile);
 508                         g_free(destfile);
 509                         continue;
 510                 }
 511                 if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 512                         if (chmod(destfile, prefs->folder_chmod) < 0)
 513                                 FILE_OP_ERROR(destfile, "chmod");
 514
 515                         /* for mark file */
 516                         filemode = prefs->folder_chmod;
 517                         if (filemode & S_IRGRP) filemode |= S_IWGRP;
 518                         if (filemode & S_IROTH) filemode |= S_IWOTH;
 519                 }
 520                 if (relation)
 521                         g_relation_insert(relation, msginfo, GINT_TO_POINTER(dest->last_num+1));
 522                 g_free(srcfile);
 523                 g_free(destfile);
 524                 dest->last_num++;
 525         }
 526
 527         dest_need_scan = mh_scan_required(dest->folder, dest);
 528         if (!dest_need_scan)
 529                 dest->mtime = time(NULL);
 530
 531         return dest->last_num;
 532 }
 533
 534 static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 535 {
 536         gboolean need_scan = FALSE;
 537         gchar *file;
 538
 539         g_return_val_if_fail(item != NULL, -1);
 540
 541         file = mh_fetch_msg(folder, item, num);
 542         g_return_val_if_fail(file != NULL, -1);
 543
 544         need_scan = mh_scan_required(folder, item);
 545
 546         if (g_unlink(file) < 0) {
 547                 FILE_OP_ERROR(file, "unlink");
 548                 g_free(file);
 549                 return -1;
 550         }
 551
 552         if (!need_scan)
 553                 item->mtime = time(NULL);
 554
 555         g_free(file);
 556         return 0;
 557 }
 558
 559 static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 560 {
 561         gchar *path;
 562         gint val;
 563
 564         g_return_val_if_fail(item != NULL, -1);
 565
 566         path = folder_item_get_path(item);
 567         g_return_val_if_fail(path != NULL, -1);
 568         val = remove_all_numbered_files(path);
 569         g_free(path);
 570
 571         return val;
 572 }
 573
 574 static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
 575                                   MsgInfo *msginfo)
 576 {
 577         struct stat s;
 578
 579         if (g_stat(itos(msginfo->msgnum), &s) < 0 ||
 580             msginfo->size  != s.st_size || (
 581                 (msginfo->mtime - s.st_mtime != 0) &&
 582                 (msginfo->mtime - s.st_mtime != 3600) &&
 583                 (msginfo->mtime - s.st_mtime != -3600)))
 584                 return TRUE;
 585
 586         return FALSE;
 587 }
 588
 589 static gint mh_scan_tree(Folder *folder)
 590 {
 591         FolderItem *item;
 592         gchar *rootpath;
 593
 594         g_return_val_if_fail(folder != NULL, -1);
 595
 596         if (!folder->node) {
 597                 item = folder_item_new(folder, folder->name, NULL);
 598                 item->folder = folder;
 599                 folder->node = item->node = g_node_new(item);
 600         } else
 601                 item = FOLDER_ITEM(folder->node->data);
 602
 603         rootpath = folder_item_get_path(item);
 604         if (change_dir(rootpath) < 0) {
 605                 g_free(rootpath);
 606                 return -1;
 607         }
 608         g_free(rootpath);
 609
 610         mh_create_tree(folder);
 611         mh_remove_missing_folder_items(folder);
 612         mh_scan_tree_recursive(item);
 613
 614         return 0;
 615 }
 616
 617 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 618 { \
 619         if (!is_dir_exist(dir)) { \
 620                 if (is_file_exist(dir)) { \
 621                         g_warning("File `%s' already exists.\n" \
 622                                     "Can't create folder.", dir); \
 623                         return -1; \
 624                 } \
 625                 if (make_dir(dir) < 0) \
 626                         return -1; \
 627         } \
 628 }
 629
 630 static gint mh_create_tree(Folder *folder)
 631 {
 632         gchar *rootpath;
 633
 634         g_return_val_if_fail(folder != NULL, -1);
 635
 636         CHDIR_RETURN_VAL_IF_FAIL(get_mail_base_dir(), -1);
 637         rootpath = LOCAL_FOLDER(folder)->rootpath;
 638         MAKE_DIR_IF_NOT_EXIST(rootpath);
 639         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 640         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 641         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 642         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 643         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 644         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 645
 646         return 0;
 647 }
 648
 649 #undef MAKE_DIR_IF_NOT_EXIST
 650
 651 static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 652 {
 653         gchar *folder_path, *path;
 654         gchar *real_path;
 655         g_return_val_if_fail(folder != NULL, NULL);
 656         g_return_val_if_fail(item != NULL, NULL);
 657
 658         folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
 659         g_return_val_if_fail(folder_path != NULL, NULL);
 660
 661         /* FIXME: [W32] The code below does not correctly merge
 662            relative filenames; there should be a function to handle
 663            this.  */
 664         if ( !is_relative_filename (folder_path) ) {
 665                 if (item->path)
 666                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 667                                            item->path, NULL);
 668                 else
 669                         path = g_strdup(folder_path);
 670         } else {
 671                 if (item->path)
 672                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 673                                            folder_path, G_DIR_SEPARATOR_S,
 674                                            item->path, NULL);
 675                 else
 676                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 677                                            folder_path, NULL);
 678         }
 679         g_free(folder_path);
 680         real_path = mh_filename_from_utf8(path);
 681         if (!is_dir_exist(real_path) && is_dir_exist(path)) {
 682                 /* mmh, older version did put utf8 filenames instead of
 683                  * the correct encoding */
 684                 rename(path, real_path);
 685                 folder_item_scan(item);
 686         }
 687
 688         g_free(path);
 689         return real_path;
 690 }
 691
 692 static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 693                                     const gchar *name)
 694 {
 695         gchar *path, *real_name;
 696         gchar *fullpath;
 697         FolderItem *new_item;
 698         gchar *mh_sequences_filename;
 699         FILE *mh_sequences_file;
 700
 701         g_return_val_if_fail(folder != NULL, NULL);
 702         g_return_val_if_fail(parent != NULL, NULL);
 703         g_return_val_if_fail(name != NULL, NULL);
 704
 705         path = folder_item_get_path(parent);
 706         if (!is_dir_exist(path))
 707                 if (make_dir_hier(path) != 0)
 708                         return NULL;
 709
 710         real_name = mh_filename_from_utf8(name);
 711         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
 712         g_free(real_name);
 713         g_free(path);
 714
 715         if (make_dir(fullpath) < 0) {
 716                 g_free(fullpath);
 717                 return NULL;
 718         }
 719
 720         g_free(fullpath);
 721
 722         if (parent->path)
 723                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 724                                    NULL);
 725         else
 726                 path = g_strdup(name);
 727         new_item = folder_item_new(folder, name, path);
 728         folder_item_append(parent, new_item);
 729
 730         g_free(path);
 731
 732         path = folder_item_get_path(new_item);
 733         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 734                                             ".mh_sequences", NULL);
 735         if ((mh_sequences_file = g_fopen(mh_sequences_filename, "a+b")) != NULL) {
 736                 fclose(mh_sequences_file);
 737         }
 738         g_free(mh_sequences_filename);
 739         g_free(path);
 740
 741         return new_item;
 742 }
 743
 744 static gint mh_rename_folder(Folder *folder, FolderItem *item,
 745                              const gchar *name)
 746 {
 747         gchar *real_name;
 748         gchar *oldpath;
 749         gchar *dirname;
 750         gchar *newpath, *utf8newpath;
 751         gchar *paths[2];
 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         g_return_val_if_fail(name != NULL, -1);
 757
 758         oldpath = folder_item_get_path(item);
 759         if (!is_dir_exist(oldpath))
 760                 make_dir_hier(oldpath);
 761
 762         dirname = g_path_get_dirname(oldpath);
 763         real_name = mh_filename_from_utf8(name);
 764         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
 765         g_free(real_name);
 766
 767         if (g_rename(oldpath, newpath) < 0) {
 768                 FILE_OP_ERROR(oldpath, "rename");
 769                 g_free(oldpath);
 770                 g_free(newpath);
 771                 return -1;
 772         }
 773
 774         g_free(oldpath);
 775         g_free(newpath);
 776
 777         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 778                 dirname = g_path_get_dirname(item->path);
 779                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
 780                                           name, NULL);
 781                 g_free(dirname);
 782         } else
 783                 utf8newpath = g_strdup(name);
 784
 785         g_free(item->name);
 786         item->name = g_strdup(name);
 787
 788         paths[0] = g_strdup(item->path);
 789         paths[1] = utf8newpath;
 790         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 791                         mh_rename_folder_func, paths);
 792
 793         g_free(paths[0]);
 794         g_free(paths[1]);
 795         return 0;
 796 }
 797
 798 static gint mh_remove_folder(Folder *folder, FolderItem *item)
 799 {
 800         gchar *path;
 801
 802         g_return_val_if_fail(folder != NULL, -1);
 803         g_return_val_if_fail(item != NULL, -1);
 804         g_return_val_if_fail(item->path != NULL, -1);
 805
 806         path = folder_item_get_path(item);
 807         if (remove_dir_recursive(path) < 0) {
 808                 g_warning("can't remove directory `%s'\n", path);
 809                 g_free(path);
 810                 return -1;
 811         }
 812
 813         g_free(path);
 814         folder_item_remove(item);
 815         return 0;
 816 }
 817
 818 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 819 {
 820         MsgInfo *msginfo;
 821         MsgFlags flags;
 822
 823         g_return_val_if_fail(item != NULL, NULL);
 824         g_return_val_if_fail(file != NULL, NULL);
 825
 826         flags.perm_flags = MSG_NEW|MSG_UNREAD;
 827         flags.tmp_flags = 0;
 828
 829         if (folder_has_parent_of_type(item, F_QUEUE)) {
 830                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
 831         } else if (folder_has_parent_of_type(item, F_DRAFT)) {
 832                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
 833         }
 834
 835         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
 836         if (!msginfo) return NULL;
 837
 838         msginfo->msgnum = atoi(file);
 839         msginfo->folder = item;
 840
 841         return msginfo;
 842 }
 843
 844 #if 0
 845 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
 846 {
 847         gchar *entry;
 848         gboolean result;
 849
 850         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
 851         result = is_dir_exist(entry);
 852         g_free(entry);
 853
 854         return result;
 855 }
 856
 857 /*
 858  * check whether PATH is a Maildir style mailbox.
 859  * This is the case if the 3 subdir: new, cur, tmp are existing.
 860  * This functon assumes that entry is an directory
 861  */
 862 static gboolean mh_is_maildir(const gchar *path)
 863 {
 864         return mh_is_maildir_one(path, "new") &&
 865                mh_is_maildir_one(path, "cur") &&
 866                mh_is_maildir_one(path, "tmp");
 867 }
 868 #endif
 869
 870 static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
 871 {
 872         FolderItem *item;
 873         gchar *path;
 874
 875         g_return_val_if_fail(node->data != NULL, FALSE);
 876
 877         if (G_NODE_IS_ROOT(node))
 878                 return FALSE;
 879
 880         item = FOLDER_ITEM(node->data);
 881
 882         path = folder_item_get_path(item);
 883         if (!is_dir_exist(path)) {
 884                 debug_print("folder '%s' not found. removing...\n", path);
 885                 folder_item_remove(item);
 886         }
 887         g_free(path);
 888
 889         return FALSE;
 890 }
 891
 892 static void mh_remove_missing_folder_items(Folder *folder)
 893 {
 894         g_return_if_fail(folder != NULL);
 895
 896         debug_print("searching missing folders...\n");
 897
 898         g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
 899                         mh_remove_missing_folder_items_func, folder);
 900 }
 901
 902 static void mh_scan_tree_recursive(FolderItem *item)
 903 {
 904         Folder *folder;
 905 #ifdef G_OS_WIN32
 906         GDir *dir;
 907 #else
 908         DIR *dp;
 909         struct dirent *d;
 910 #endif
 911         const gchar *dir_name;
 912         struct stat s;
 913         gchar *real_path, *entry, *utf8entry, *utf8name;
 914         gint n_msg = 0;
 915
 916         g_return_if_fail(item != NULL);
 917         g_return_if_fail(item->folder != NULL);
 918
 919         folder = item->folder;
 920
 921         real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
 922 #ifdef G_OS_WIN32
 923         dir = g_dir_open(real_path, 0, NULL);
 924         if (!dir) {
 925                 g_warning("failed to open directory: %s\n", real_path);
 926                 g_free(real_path);
 927                 return;
 928         }
 929 #else
 930         dp = opendir(real_path);
 931         if (!dp) {
 932                 FILE_OP_ERROR(real_path, "opendir");
 933                 return;
 934         }
 935 #endif
 936         g_free(real_path);
 937
 938         debug_print("scanning %s ...\n",
 939                     item->path ? item->path
 940                     : LOCAL_FOLDER(item->folder)->rootpath);
 941         if (folder->ui_func)
 942                 folder->ui_func(folder, item, folder->ui_func_data);
 943
 944 #ifdef G_OS_WIN32
 945         while ((dir_name = g_dir_read_name(dir)) != NULL) {
 946 #else
 947         while ((d = readdir(dp)) != NULL) {
 948                 dir_name = d->d_name;
 949 #endif
 950                 if (dir_name[0] == '.') continue;
 951
 952                 utf8name = mh_filename_to_utf8(dir_name);
 953                 if (item->path)
 954                         utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
 955                                                 utf8name, NULL);
 956                 else
 957                         utf8entry = g_strdup(utf8name);
 958                 entry = mh_filename_from_utf8(utf8entry);
 959
 960                 if (
 961 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
 962                         d->d_type == DT_DIR ||
 963                         (d->d_type == DT_UNKNOWN &&
 964 #endif
 965                         g_stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
 966 #if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
 967                         )
 968 #endif
 969                    ) {
 970                         FolderItem *new_item = NULL;
 971                         GNode *node;
 972
 973 #if 0
 974                         if (mh_is_maildir(entry)) {
 975                                 g_free(entry);
 976                                 g_free(utf8entry);
 977                                 g_free(utf8name);
 978                                 continue;
 979                         }
 980 #endif
 981
 982                         node = item->node;
 983                         for (node = node->children; node != NULL; node = node->next) {
 984                                 FolderItem *cur_item = FOLDER_ITEM(node->data);
 985                                 if (!strcmp2(cur_item->path, entry)) {
 986                                         new_item = cur_item;
 987                                         break;
 988                                 }
 989                         }
 990                         if (!new_item) {
 991                                 debug_print("new folder '%s' found.\n", entry);
 992                                 new_item = folder_item_new(folder, utf8name, utf8entry);
 993                                 folder_item_append(item, new_item);
 994                         }
 995
 996                         if (!item->path) {
 997                                 if (!folder->inbox &&
 998                                     !strcmp(dir_name, INBOX_DIR)) {
 999                                         new_item->stype = F_INBOX;
1000                                         folder->inbox = new_item;
1001                                 } else if (!folder->outbox &&
1002                                            !strcmp(dir_name, OUTBOX_DIR)) {
1003                                         new_item->stype = F_OUTBOX;
1004                                         folder->outbox = new_item;
1005                                 } else if (!folder->draft &&
1006                                            !strcmp(dir_name, DRAFT_DIR)) {
1007                                         new_item->stype = F_DRAFT;
1008                                         folder->draft = new_item;
1009                                 } else if (!folder->queue &&
1010                                            !strcmp(dir_name, QUEUE_DIR)) {
1011                                         new_item->stype = F_QUEUE;
1012                                         folder->queue = new_item;
1013                                 } else if (!folder->trash &&
1014                                            !strcmp(dir_name, TRASH_DIR)) {
1015                                         new_item->stype = F_TRASH;
1016                                         folder->trash = new_item;
1017                                 }
1018                         }
1019
1020                         mh_scan_tree_recursive(new_item);
1021                 } else if (to_number(dir_name) > 0) n_msg++;
1022
1023                 g_free(entry);
1024                 g_free(utf8entry);
1025                 g_free(utf8name);
1026         }
1027
1028 #ifdef G_OS_WIN32
1029         g_dir_close(dir);
1030 #else
1031         closedir(dp);
1032 #endif
1033
1034         item->mtime = time(NULL);
1035
1036 /*
1037         if (item->path) {
1038                 gint new, unread, total, min, max;
1039
1040                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
1041                                      &min, &max, 0);
1042                 if (n_msg > total) {
1043                         new += n_msg - total;
1044                         unread += n_msg - total;
1045                 }
1046                 item->new = new;
1047                 item->unread = unread;
1048                 item->total = n_msg;
1049         }
1050 */
1051 }
1052
1053 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1054 {
1055         FolderItem *item = node->data;
1056         gchar **paths = data;
1057         const gchar *oldpath = paths[0];
1058         const gchar *newpath = paths[1];
1059         gchar *base;
1060         gchar *new_itempath;
1061         gint oldpathlen;
1062
1063         oldpathlen = strlen(oldpath);
1064         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1065                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1066                 return TRUE;
1067         }
1068
1069         base = item->path + oldpathlen;
1070         while (*base == G_DIR_SEPARATOR) base++;
1071         if (*base == '\0')
1072                 new_itempath = g_strdup(newpath);
1073         else
1074                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1075                                            NULL);
1076         g_free(item->path);
1077         item->path = new_itempath;
1078
1079         return FALSE;
1080 }
1081
1082 static gchar *mh_filename_from_utf8(const gchar *path)
1083 {
1084         gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
1085
1086         if (!real_path) {
1087                 g_warning("mh_filename_from_utf8: faild to convert character set\n");
1088                 real_path = g_strdup(path);
1089         }
1090
1091         return real_path;
1092 }
1093
1094 static gchar *mh_filename_to_utf8(const gchar *path)
1095 {
1096         gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
1097         if (!utf8path) {
1098                 g_warning("mh_filename_to_utf8: faild to convert character set\n");
1099                 utf8path = g_strdup(path);
1100         }
1101
1102         return utf8path;
1103 }