src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 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 GSList  *mh_get_msg_list        (Folder         *folder,
  51                                  FolderItem     *item,
  52                                  gboolean        use_cache);
  53 gchar   *mh_fetch_msg           (Folder         *folder,
  54                                  FolderItem     *item,
  55                                  gint            num);
  56 MsgInfo   *mh_get_msginfo       (Folder         *folder,
  57                                  FolderItem     *item,
  58                                  gint            num);
  59 gint     mh_add_msg             (Folder         *folder,
  60                                  FolderItem     *dest,
  61                                  const gchar    *file,
  62                                  gboolean        remove_source);
  63 gint     mh_move_msg            (Folder         *folder,
  64                                  FolderItem     *dest,
  65                                  MsgInfo        *msginfo);
  66 gint     mh_move_msgs_with_dest (Folder         *folder,
  67                                  FolderItem     *dest,
  68                                  GSList         *msglist);
  69 gint     mh_copy_msg            (Folder         *folder,
  70                                  FolderItem     *dest,
  71                                  MsgInfo        *msginfo);
  72 gint     mh_copy_msgs_with_dest (Folder         *folder,
  73                                  FolderItem     *dest,
  74                                  GSList         *msglist);
  75 gint     mh_remove_msg          (Folder         *folder,
  76                                  FolderItem     *item,
  77                                  gint            num);
  78 gint     mh_remove_all_msg      (Folder         *folder,
  79                                  FolderItem     *item);
  80 gboolean mh_is_msg_changed      (Folder         *folder,
  81                                  FolderItem     *item,
  82                                  MsgInfo        *msginfo);
  83
  84 gint    mh_scan_folder          (Folder         *folder,
  85                                  FolderItem     *item);
  86 gint mh_get_num_list            (Folder         *folder,
  87                                  FolderItem     *item,
  88                                  GSList        **list);
  89 void    mh_scan_tree            (Folder         *folder);
  90
  91 gint    mh_create_tree          (Folder         *folder);
  92 FolderItem *mh_create_folder    (Folder         *folder,
  93                                  FolderItem     *parent,
  94                                  const gchar    *name);
  95 gint    mh_rename_folder        (Folder         *folder,
  96                                  FolderItem     *item,
  97                                  const gchar    *name);
  98 gint    mh_remove_folder        (Folder         *folder,
  99                                  FolderItem     *item);
 100
 101 gchar   *mh_get_new_msg_filename                (FolderItem     *dest);
 102
 103 static GSList  *mh_get_uncached_msgs            (GHashTable     *msg_table,
 104                                                  FolderItem     *item);
 105 static MsgInfo *mh_parse_msg                    (const gchar    *file,
 106                                                  FolderItem     *item);
 107 static void     mh_scan_tree_recursive          (FolderItem     *item);
 108
 109 static gboolean mh_rename_folder_func           (GNode          *node,
 110                                                  gpointer        data);
 111
 112
 113 Folder *mh_folder_new(const gchar *name, const gchar *path)
 114 {
 115         Folder *folder;
 116
 117         folder = (Folder *)g_new0(MHFolder, 1);
 118         mh_folder_init(folder, name, path);
 119
 120         return folder;
 121 }
 122
 123 void mh_folder_destroy(Folder *folder)
 124 {
 125         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 126 }
 127
 128 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 129 {
 130         folder->type = F_MH;
 131
 132         folder_local_folder_init(folder, name, path);
 133
 134 /*      folder->get_msg_list        = mh_get_msg_list; */
 135         folder->fetch_msg           = mh_fetch_msg;
 136         folder->get_msginfo         = mh_get_msginfo;
 137         folder->add_msg             = mh_add_msg;
 138         folder->move_msg            = mh_move_msg;
 139         folder->move_msgs_with_dest = mh_move_msgs_with_dest;
 140         folder->copy_msg            = mh_copy_msg;
 141         folder->copy_msgs_with_dest = mh_copy_msgs_with_dest;
 142         folder->remove_msg          = mh_remove_msg;
 143         folder->remove_all_msg      = mh_remove_all_msg;
 144         folder->is_msg_changed      = mh_is_msg_changed;
 145 /*      folder->scan                = mh_scan_folder; */
 146         folder->get_num_list        = mh_get_num_list;
 147         folder->scan_tree           = mh_scan_tree;
 148         folder->create_tree         = mh_create_tree;
 149         folder->create_folder       = mh_create_folder;
 150         folder->rename_folder       = mh_rename_folder;
 151         folder->remove_folder       = mh_remove_folder;
 152         folder->destroy             = mh_folder_destroy;
 153 }
 154
 155 void mh_get_last_num(Folder *folder, FolderItem *item)
 156 {
 157         gchar *path;
 158         DIR *dp;
 159         struct dirent *d;
 160         struct stat s;
 161         gint max = 0;
 162         gint num;
 163
 164         g_return_if_fail(item != NULL);
 165
 166         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 167
 168         path = folder_item_get_path(item);
 169         g_return_if_fail(path != NULL);
 170         if (change_dir(path) < 0) {
 171                 g_free(path);
 172                 return;
 173         }
 174         g_free(path);
 175
 176         if ((dp = opendir(".")) == NULL) {
 177                 FILE_OP_ERROR(item->path, "opendir");
 178                 return;
 179         }
 180
 181         while ((d = readdir(dp)) != NULL) {
 182                 if ((num = to_number(d->d_name)) >= 0 &&
 183                     stat(d->d_name, &s) == 0 &&
 184                     S_ISREG(s.st_mode)) {
 185                         if (max < num)
 186                                 max = num;
 187                 }
 188         }
 189         closedir(dp);
 190
 191         debug_print("Last number in dir %s = %d\n", item->path, max);
 192         item->last_num = max;
 193 }
 194
 195 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list)
 196 {
 197
 198         gchar *path;
 199         DIR *dp;
 200         struct dirent *d;
 201         struct stat s;
 202         gint num, nummsgs = 0;
 203
 204         g_return_val_if_fail(item != NULL, -1);
 205
 206         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 207
 208         path = folder_item_get_path(item);
 209         g_return_val_if_fail(path != NULL, -1);
 210         if (change_dir(path) < 0) {
 211                 g_free(path);
 212                 return -1;
 213         }
 214         g_free(path);
 215
 216         if ((dp = opendir(".")) == NULL) {
 217                 FILE_OP_ERROR(item->path, "opendir");
 218                 return -1;
 219         }
 220
 221         while ((d = readdir(dp)) != NULL) {
 222                 if ((num = to_number(d->d_name)) >= 0 &&
 223                     stat(d->d_name, &s) == 0 &&
 224                     S_ISREG(s.st_mode)) {
 225                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 226                     nummsgs++;
 227                 }
 228         }
 229         closedir(dp);
 230
 231         return nummsgs;
 232 }
 233
 234 GSList *mh_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 235 {
 236         GSList *mlist;
 237         GHashTable *msg_table;
 238         gchar *path;
 239         struct stat s;
 240         gboolean scan_new = TRUE;
 241 #ifdef MEASURE_TIME
 242         struct timeval tv_before, tv_after, tv_result;
 243
 244         gettimeofday(&tv_before, NULL);
 245 #endif
 246
 247         g_return_val_if_fail(item != NULL, NULL);
 248
 249         path = folder_item_get_path(item);
 250         if (stat(path, &s) < 0) {
 251                 FILE_OP_ERROR(path, "stat");
 252         } else {
 253                 time_t mtime;
 254
 255                 mtime = MAX(s.st_mtime, s.st_ctime);
 256                 if (item->mtime == mtime) {
 257                         debug_print("Folder is not modified.\n");
 258                         scan_new = FALSE;
 259                 } else
 260                         item->mtime = mtime;
 261         }
 262         g_free(path);
 263
 264         if (use_cache && !scan_new) {
 265                 mlist = procmsg_read_cache(item, FALSE);
 266                 if (!mlist)
 267                         mlist = mh_get_uncached_msgs(NULL, item);
 268         } else if (use_cache) {
 269                 GSList *newlist;
 270
 271                 mlist = procmsg_read_cache(item, TRUE);
 272                 msg_table = procmsg_msg_hash_table_create(mlist);
 273
 274                 newlist = mh_get_uncached_msgs(msg_table, item);
 275                 if (msg_table)
 276                         g_hash_table_destroy(msg_table);
 277
 278                 mlist = g_slist_concat(mlist, newlist);
 279         } else
 280                 mlist = mh_get_uncached_msgs(NULL, item);
 281
 282         procmsg_set_flags(mlist, item);
 283
 284 #ifdef MEASURE_TIME
 285         gettimeofday(&tv_after, NULL);
 286
 287         timersub(&tv_after, &tv_before, &tv_result);
 288         g_print("mh_get_msg_list: %s: elapsed time: %ld.%06ld sec\n",
 289                 item->path, tv_result.tv_sec, tv_result.tv_usec);
 290 #endif
 291
 292         return mlist;
 293 }
 294
 295 gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 296 {
 297         gchar *path;
 298         gchar *file;
 299
 300         g_return_val_if_fail(item != NULL, NULL);
 301         g_return_val_if_fail(num > 0, NULL);
 302
 303         path = folder_item_get_path(item);
 304         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 305         g_free(path);
 306         if (!is_file_exist(file)) {
 307                 g_free(file);
 308                 return NULL;
 309         }
 310
 311         return file;
 312 }
 313
 314 MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 315 {
 316         MsgInfo *msginfo;
 317         gchar *file;
 318
 319         g_return_val_if_fail(item != NULL, NULL);
 320         g_return_val_if_fail(num > 0, NULL);
 321
 322         file = mh_fetch_msg(folder, item, num);
 323         if (!file) return NULL;
 324
 325         msginfo = mh_parse_msg(file, item);
 326         msginfo->msgnum = num;
 327
 328         g_free(file);
 329
 330         return msginfo;
 331 }
 332
 333 gchar *mh_get_new_msg_filename(FolderItem *dest)
 334 {
 335         gchar *destfile;
 336         gchar *destpath;
 337
 338         destpath = folder_item_get_path(dest);
 339         g_return_val_if_fail(destpath != NULL, NULL);
 340
 341         if (!is_dir_exist(destpath))
 342                 make_dir_hier(destpath);
 343
 344         for (;;) {
 345                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 346                                            dest->last_num + 1);
 347                 if (is_file_entry_exist(destfile)) {
 348                         dest->last_num++;
 349                         g_free(destfile);
 350                 } else
 351                         break;
 352         }
 353
 354         g_free(destpath);
 355
 356         return destfile;
 357 }
 358
 359 #define SET_DEST_MSG_FLAGS(fp, dest, msginfo) \
 360 { \
 361         MsgInfo newmsginfo; \
 362  \
 363         newmsginfo.msgnum = dest->last_num; \
 364         newmsginfo.flags = msginfo->flags; \
 365         if (dest->stype == F_OUTBOX || \
 366             dest->stype == F_QUEUE  || \
 367             dest->stype == F_DRAFT  || \
 368             dest->stype == F_TRASH) \
 369                 MSG_UNSET_PERM_FLAGS(newmsginfo.flags, \
 370                                      MSG_NEW|MSG_UNREAD|MSG_DELETED); \
 371  \
 372         procmsg_write_flags(&newmsginfo, fp); \
 373 }
 374
 375 gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 376                 gboolean remove_source)
 377 {
 378         gchar *destfile;
 379
 380         g_return_val_if_fail(dest != NULL, -1);
 381         g_return_val_if_fail(file != NULL, -1);
 382
 383         if (dest->last_num < 0) {
 384                 mh_get_last_num(folder, dest);
 385                 if (dest->last_num < 0) return -1;
 386         }
 387
 388         destfile = mh_get_new_msg_filename(dest);
 389         g_return_val_if_fail(destfile != NULL, -1);
 390
 391         if (link(file, destfile) < 0) {
 392                 if (copy_file(file, destfile, TRUE) < 0) {
 393                         g_warning("can't copy message %s to %s\n",
 394                                   file, destfile);
 395                         g_free(destfile);
 396                         return -1;
 397                 }
 398         }
 399
 400         if (remove_source) {
 401                 if (unlink(file) < 0)
 402                         FILE_OP_ERROR(file, "unlink");
 403         }
 404
 405         g_free(destfile);
 406         dest->last_num++;
 407         return dest->last_num;
 408 }
 409
 410 static gint mh_do_move(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 411 {
 412         gchar *srcfile;
 413         gchar *destfile;
 414         gint filemode = 0;
 415         PrefsFolderItem *prefs;
 416
 417         g_return_val_if_fail(dest != NULL, -1);
 418         g_return_val_if_fail(msginfo != NULL, -1);
 419
 420         if (msginfo->folder == dest) {
 421                 g_warning("the src folder is identical to the dest.\n");
 422                 return -1;
 423         }
 424
 425         if (dest->last_num < 0) {
 426                 mh_get_last_num(folder, dest);
 427                 if (dest->last_num < 0) return -1;
 428         }
 429
 430         prefs = dest->prefs;
 431
 432         destfile = mh_get_new_msg_filename(dest);
 433         if (!destfile) return -1;
 434
 435         srcfile = procmsg_get_message_file(msginfo);
 436
 437         debug_print("Moving message %s%c%d to %s ...\n",
 438                     msginfo->folder->path, G_DIR_SEPARATOR,
 439                     msginfo->msgnum, dest->path);
 440
 441         if (move_file(srcfile, destfile, FALSE) < 0) {
 442                 g_free(srcfile);
 443                 g_free(destfile);
 444                 return -1;
 445         }
 446
 447         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 448                 if (chmod(destfile, prefs->folder_chmod) < 0)
 449                         FILE_OP_ERROR(destfile, "chmod");
 450
 451                 /* for mark file */
 452                 filemode = prefs->folder_chmod;
 453                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 454                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 455         }
 456
 457         g_free(srcfile);
 458         g_free(destfile);
 459         dest->last_num++;
 460
 461         return dest->last_num;
 462 }
 463
 464 gint mh_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 465 {
 466         gchar *srcfile;
 467         gint ret = 0;
 468
 469         g_return_val_if_fail(folder != NULL, -1);
 470         g_return_val_if_fail(dest != NULL, -1);
 471         g_return_val_if_fail(msginfo != NULL, -1);
 472         g_return_val_if_fail(msginfo->folder != NULL, -1);
 473
 474         if (folder == msginfo->folder->folder)
 475                 return mh_do_move(folder, dest, msginfo);
 476
 477         srcfile = procmsg_get_message_file(msginfo);
 478         if (!srcfile) return -1;
 479
 480         ret = mh_add_msg(folder, dest, srcfile, FALSE);
 481         g_free(srcfile);
 482
 483         if (ret != -1) {
 484                 gchar *destdir;
 485                 FILE *fp;
 486
 487                 destdir = folder_item_get_path(dest);
 488                 if ((fp = procmsg_open_mark_file(destdir, TRUE)) == NULL)
 489                         g_warning("Can't open mark file.\n");
 490                 else {
 491                         SET_DEST_MSG_FLAGS(fp, dest, msginfo);
 492                         fclose(fp);
 493                 }
 494                 g_free(destdir);
 495
 496                 ret = folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
 497         }
 498
 499         return ret;
 500 }
 501
 502 static gint mh_do_move_msgs_with_dest(Folder *folder, FolderItem *dest,
 503                                       GSList *msglist)
 504 {
 505         gchar *srcfile;
 506         gchar *destfile;
 507         GSList *cur;
 508         MsgInfo *msginfo;
 509         PrefsFolderItem *prefs;
 510
 511         g_return_val_if_fail(dest != NULL, -1);
 512         g_return_val_if_fail(msglist != NULL, -1);
 513
 514         if (dest->last_num < 0) {
 515                 mh_get_last_num(folder, dest);
 516                 if (dest->last_num < 0) return -1;
 517         }
 518
 519         prefs = dest->prefs;
 520
 521         for (cur = msglist; cur != NULL; cur = cur->next) {
 522                 msginfo = (MsgInfo *)cur->data;
 523
 524                 if (msginfo->folder == dest) {
 525                         g_warning("the src folder is identical to the dest.\n");
 526                         continue;
 527                 }
 528                 debug_print("Moving message %s%c%d to %s ...\n",
 529                             msginfo->folder->path, G_DIR_SEPARATOR,
 530                             msginfo->msgnum, dest->path);
 531
 532                 destfile = mh_get_new_msg_filename(dest);
 533                 if (!destfile) return -1;
 534                 srcfile = procmsg_get_message_file(msginfo);
 535
 536                 if (move_file(srcfile, destfile, FALSE) < 0) {
 537                         g_free(srcfile);
 538                         g_free(destfile);
 539                         break;
 540                 }
 541
 542                 g_free(srcfile);
 543                 g_free(destfile);
 544                 dest->last_num++;
 545         }
 546
 547         return dest->last_num;
 548 }
 549
 550 gint mh_move_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
 551 {
 552         MsgInfo *msginfo;
 553         GSList *cur;
 554         gint ret = 0;
 555
 556         msginfo = (MsgInfo *)msglist->data;
 557         if (folder == msginfo->folder->folder)
 558                 return mh_do_move_msgs_with_dest(folder, dest, msglist);
 559
 560         for (cur = msglist; cur != NULL; cur = cur->next) {
 561                 msginfo = (MsgInfo *)cur->data;
 562                 ret = mh_move_msg(folder, dest, msginfo);
 563                 if (ret == -1) break;
 564         }
 565
 566         return ret;
 567 }
 568
 569 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 570 {
 571         gchar *srcfile;
 572         gchar *destfile;
 573         gint filemode = 0;
 574         PrefsFolderItem *prefs;
 575
 576         g_return_val_if_fail(dest != NULL, -1);
 577         g_return_val_if_fail(msginfo != NULL, -1);
 578
 579         if (msginfo->folder == dest) {
 580                 g_warning("the src folder is identical to the dest.\n");
 581                 return -1;
 582         }
 583
 584         if (dest->last_num < 0) {
 585                 mh_get_last_num(folder, dest);
 586                 if (dest->last_num < 0) return -1;
 587         }
 588
 589         prefs = dest->prefs;
 590
 591         srcfile = procmsg_get_message_file(msginfo);
 592         destfile = mh_get_new_msg_filename(dest);
 593         if (!destfile) {
 594                 g_free(srcfile);
 595                 return -1;
 596         }
 597
 598         debug_print("Copying message %s%c%d to %s ...\n",
 599                     msginfo->folder->path, G_DIR_SEPARATOR,
 600                     msginfo->msgnum, dest->path);
 601
 602
 603         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 604         &&  dest->stype != F_QUEUE && dest->stype != F_DRAFT) {
 605                 if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
 606                         g_free(srcfile);
 607                         g_free(destfile);
 608                         return -1;
 609                 }
 610         } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 611                 FILE_OP_ERROR(srcfile, "copy");
 612                 g_free(srcfile);
 613                 g_free(destfile);
 614                 return -1;
 615         }
 616
 617
 618         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 619                 if (chmod(destfile, prefs->folder_chmod) < 0)
 620                         FILE_OP_ERROR(destfile, "chmod");
 621
 622                 /* for mark file */
 623                 filemode = prefs->folder_chmod;
 624                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 625                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 626         }
 627
 628         g_free(srcfile);
 629         g_free(destfile);
 630         dest->last_num++;
 631
 632         return dest->last_num;
 633 }
 634
 635 /*
 636 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 637 {
 638         Folder * src_folder;
 639         gchar * filename;
 640         gint num;
 641         gchar * destdir;
 642         FILE * fp;
 643
 644         src_folder = msginfo->folder->folder;
 645
 646         g_return_val_if_fail(src_folder->fetch_msg != NULL, -1);
 647
 648         filename = src_folder->fetch_msg(src_folder,
 649                                          msginfo->folder,
 650                                          msginfo->msgnum);
 651         if (filename == NULL)
 652                 return -1;
 653
 654         num = folder->add_msg(folder, dest, filename, FALSE);
 655
 656         destdir = folder_item_get_path(dest);
 657
 658         if (fp) {
 659                 MsgInfo newmsginfo;
 660
 661                 newmsginfo.msgnum = dest->last_num;
 662                 newmsginfo.flags = msginfo->flags;
 663                 if (dest->stype == F_OUTBOX ||
 664                     dest->stype == F_QUEUE  ||
 665                     dest->stype == F_DRAFT  ||
 666                     dest->stype == F_TRASH)
 667                         MSG_UNSET_FLAGS(newmsginfo.flags,
 668                                         MSG_NEW|MSG_UNREAD|MSG_DELETED);
 669
 670                 procmsg_write_flags(&newmsginfo, fp);
 671                 fclose(fp);
 672         }
 673
 674         return num;
 675 }
 676 */
 677
 678 gint mh_copy_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
 679 {
 680         gchar *srcfile;
 681         gchar *destfile;
 682         GSList *cur;
 683         MsgInfo *msginfo;
 684
 685         g_return_val_if_fail(dest != NULL, -1);
 686         g_return_val_if_fail(msglist != NULL, -1);
 687
 688         if (dest->last_num < 0) {
 689                 mh_get_last_num(folder, dest);
 690                 if (dest->last_num < 0) return -1;
 691         }
 692
 693         for (cur = msglist; cur != NULL; cur = cur->next) {
 694                 msginfo = (MsgInfo *)cur->data;
 695
 696                 if (msginfo->folder == dest) {
 697                         g_warning("the src folder is identical to the dest.\n");
 698                         continue;
 699                 }
 700                 debug_print("Copying message %s%c%d to %s ...\n",
 701                             msginfo->folder->path, G_DIR_SEPARATOR,
 702                             msginfo->msgnum, dest->path);
 703
 704                 destfile = mh_get_new_msg_filename(dest);
 705                 if (!destfile) break;
 706                 srcfile = procmsg_get_message_file(msginfo);
 707
 708                 if (copy_file(srcfile, destfile, TRUE) < 0) {
 709                         FILE_OP_ERROR(srcfile, "copy");
 710                         g_free(srcfile);
 711                         g_free(destfile);
 712                         break;
 713                 }
 714
 715                 g_free(srcfile);
 716                 g_free(destfile);
 717                 dest->last_num++;
 718         }
 719
 720         return dest->last_num;
 721 }
 722
 723 gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 724 {
 725         gchar *file;
 726
 727         g_return_val_if_fail(item != NULL, -1);
 728
 729         file = mh_fetch_msg(folder, item, num);
 730         g_return_val_if_fail(file != NULL, -1);
 731
 732         if (unlink(file) < 0) {
 733                 FILE_OP_ERROR(file, "unlink");
 734                 g_free(file);
 735                 return -1;
 736         }
 737
 738         g_free(file);
 739         return 0;
 740 }
 741
 742 gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 743 {
 744         gchar *path;
 745         gint val;
 746
 747         g_return_val_if_fail(item != NULL, -1);
 748
 749         path = folder_item_get_path(item);
 750         g_return_val_if_fail(path != NULL, -1);
 751         val = remove_all_numbered_files(path);
 752         g_free(path);
 753
 754         return val;
 755 }
 756
 757 gboolean mh_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 758 {
 759         struct stat s;
 760
 761         if (stat(itos(msginfo->msgnum), &s) < 0 ||
 762             msginfo->size  != s.st_size ||
 763             msginfo->mtime != s.st_mtime)
 764                 return TRUE;
 765
 766         return FALSE;
 767 }
 768
 769 gint mh_scan_folder(Folder *folder, FolderItem *item)
 770 {
 771         gchar *path;
 772         DIR *dp;
 773         struct dirent *d;
 774         struct stat s;
 775         gint max = 0;
 776         gint num;
 777
 778         g_return_val_if_fail(item != NULL, -1);
 779
 780         debug_print("mh_scan_folder(): Scanning %s ...\n", item->path);
 781
 782         path = folder_item_get_path(item);
 783         g_return_val_if_fail(path != NULL, -1);
 784         if (change_dir(path) < 0) {
 785                 g_free(path);
 786                 return -1;
 787         }
 788         g_free(path);
 789
 790         if ((dp = opendir(".")) == NULL) {
 791                 FILE_OP_ERROR(item->path, "opendir");
 792                 return -1;
 793         }
 794
 795         if (folder->ui_func)
 796                 folder->ui_func(folder, item, folder->ui_func_data);
 797
 798         while ((d = readdir(dp)) != NULL) {
 799                 if ((num = to_number(d->d_name)) >= 0 &&
 800                     stat(d->d_name, &s) == 0 &&
 801                     S_ISREG(s.st_mode)) {
 802 /*
 803                         n_msg++;
 804 */
 805                         if (max < num)
 806                                 max = num;
 807                 }
 808         }
 809         closedir(dp);
 810
 811 /*
 812         if (n_msg == 0)
 813                 item->new = item->unread = item->total = 0;
 814         else {
 815                 gint new, unread, total, min, max;
 816
 817                 procmsg_get_mark_sum(".", &new, &unread, &total, &min, &max, 0);
 818                 if (n_msg > total) {
 819                         new += n_msg - total;
 820                         unread += n_msg - total;
 821                 }
 822                 item->new = new;
 823                 item->unread = unread;
 824                 item->total = n_msg;
 825         }
 826 */
 827         debug_print("Last number in dir %s = %d\n", item->path, max);
 828         item->last_num = max;
 829
 830         return 0;
 831 }
 832
 833 void mh_scan_tree(Folder *folder)
 834 {
 835         FolderItem *item;
 836         gchar *rootpath;
 837
 838         g_return_if_fail(folder != NULL);
 839
 840         item = folder_item_new(folder, folder->name, NULL);
 841         item->folder = folder;
 842         folder->node = g_node_new(item);
 843
 844         rootpath = folder_item_get_path(item);
 845         if (change_dir(rootpath) < 0) {
 846                 g_free(rootpath);
 847                 return;
 848         }
 849         g_free(rootpath);
 850
 851         mh_create_tree(folder);
 852         mh_scan_tree_recursive(item);
 853 }
 854
 855 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 856 { \
 857         if (!is_dir_exist(dir)) { \
 858                 if (is_file_exist(dir)) { \
 859                         g_warning("File `%s' already exists.\n" \
 860                                     "Can't create folder.", dir); \
 861                         return -1; \
 862                 } \
 863                 if (make_dir(dir) < 0) \
 864                         return -1; \
 865         } \
 866 }
 867
 868 gint mh_create_tree(Folder *folder)
 869 {
 870         gchar *rootpath;
 871
 872         g_return_val_if_fail(folder != NULL, -1);
 873
 874         CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
 875         rootpath = LOCAL_FOLDER(folder)->rootpath;
 876         MAKE_DIR_IF_NOT_EXIST(rootpath);
 877         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 878         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 879         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 880         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 881         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 882         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 883
 884         return 0;
 885 }
 886
 887 #undef MAKE_DIR_IF_NOT_EXIST
 888
 889 FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 890                              const gchar *name)
 891 {
 892         gchar *path;
 893         gchar *fullpath;
 894         FolderItem *new_item;
 895         gchar *mh_sequences_filename;
 896         FILE *mh_sequences_file;
 897
 898         g_return_val_if_fail(folder != NULL, NULL);
 899         g_return_val_if_fail(parent != NULL, NULL);
 900         g_return_val_if_fail(name != NULL, NULL);
 901
 902         path = folder_item_get_path(parent);
 903         if (!is_dir_exist(path))
 904                 if (make_dir_hier(path) != 0)
 905                         return NULL;
 906
 907         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, name, NULL);
 908         g_free(path);
 909
 910         if (make_dir(fullpath) < 0) {
 911                 g_free(fullpath);
 912                 return NULL;
 913         }
 914
 915         g_free(fullpath);
 916
 917         if (parent->path)
 918                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 919                                    NULL);
 920         else
 921                 path = g_strdup(name);
 922         new_item = folder_item_new(folder, name, path);
 923         folder_item_append(parent, new_item);
 924
 925         g_free(path);
 926
 927         path = folder_item_get_path(new_item);
 928         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 929                                             ".mh_sequences", NULL);
 930         if ((mh_sequences_file = fopen(mh_sequences_filename, "a+b")) != NULL) {
 931                 fclose(mh_sequences_file);
 932         }
 933         g_free(mh_sequences_filename);
 934         g_free(path);
 935
 936         return new_item;
 937 }
 938
 939 gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
 940 {
 941         gchar *oldpath;
 942         gchar *dirname;
 943         gchar *newpath;
 944         GNode *node;
 945         gchar *paths[2];
 946
 947         g_return_val_if_fail(folder != NULL, -1);
 948         g_return_val_if_fail(item != NULL, -1);
 949         g_return_val_if_fail(item->path != NULL, -1);
 950         g_return_val_if_fail(name != NULL, -1);
 951
 952         oldpath = folder_item_get_path(item);
 953         if (!is_dir_exist(oldpath))
 954                 make_dir_hier(oldpath);
 955
 956         dirname = g_dirname(oldpath);
 957         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 958         g_free(dirname);
 959
 960         if (rename(oldpath, newpath) < 0) {
 961                 FILE_OP_ERROR(oldpath, "rename");
 962                 g_free(oldpath);
 963                 g_free(newpath);
 964                 return -1;
 965         }
 966
 967         g_free(oldpath);
 968         g_free(newpath);
 969
 970         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 971                 dirname = g_dirname(item->path);
 972                 newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 973                 g_free(dirname);
 974         } else
 975                 newpath = g_strdup(name);
 976
 977         g_free(item->name);
 978         item->name = g_strdup(name);
 979
 980         node = g_node_find(item->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL,
 981                            item);
 982         paths[0] = g_strdup(item->path);
 983         paths[1] = newpath;
 984         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 985                         mh_rename_folder_func, paths);
 986
 987         g_free(paths[0]);
 988         g_free(paths[1]);
 989         return 0;
 990 }
 991
 992 gint mh_remove_folder(Folder *folder, FolderItem *item)
 993 {
 994         gchar *path;
 995
 996         g_return_val_if_fail(folder != NULL, -1);
 997         g_return_val_if_fail(item != NULL, -1);
 998         g_return_val_if_fail(item->path != NULL, -1);
 999
1000         path = folder_item_get_path(item);
1001         if (remove_dir_recursive(path) < 0) {
1002                 g_warning("can't remove directory `%s'\n", path);
1003                 g_free(path);
1004                 return -1;
1005         }
1006
1007         g_free(path);
1008         folder_item_remove(item);
1009         return 0;
1010 }
1011
1012
1013 static GSList *mh_get_uncached_msgs(GHashTable *msg_table, FolderItem *item)
1014 {
1015         gchar *path;
1016         DIR *dp;
1017         struct dirent *d;
1018         struct stat s;
1019         GSList *newlist = NULL;
1020         GSList *last = NULL;
1021         MsgInfo *msginfo;
1022         gint n_newmsg = 0;
1023         gint num;
1024
1025         g_return_val_if_fail(item != NULL, NULL);
1026
1027         path = folder_item_get_path(item);
1028         g_return_val_if_fail(path != NULL, NULL);
1029         if (change_dir(path) < 0) {
1030                 g_free(path);
1031                 return NULL;
1032         }
1033         g_free(path);
1034
1035         if ((dp = opendir(".")) == NULL) {
1036                 FILE_OP_ERROR(item->path, "opendir");
1037                 return NULL;
1038         }
1039
1040         debug_print("Searching uncached messages...\n");
1041
1042         if (msg_table) {
1043                 while ((d = readdir(dp)) != NULL) {
1044                         if ((num = to_number(d->d_name)) < 0) continue;
1045                         if (stat(d->d_name, &s) < 0) {
1046                                 FILE_OP_ERROR(d->d_name, "stat");
1047                                 continue;
1048                         }
1049                         if (!S_ISREG(s.st_mode)) continue;
1050
1051                         msginfo = g_hash_table_lookup
1052                                 (msg_table, GUINT_TO_POINTER(num));
1053
1054                         if (!msginfo) {
1055                                 /* not found in the cache (uncached message) */
1056                                 msginfo = mh_parse_msg(d->d_name, item);
1057                                 if (!msginfo) continue;
1058
1059                                 if (!newlist)
1060                                         last = newlist =
1061                                                 g_slist_append(NULL, msginfo);
1062                                 else {
1063                                         last = g_slist_append(last, msginfo);
1064                                         last = last->next;
1065                                 }
1066                                 n_newmsg++;
1067                         }
1068                 }
1069         } else {
1070                 /* discard all previous cache */
1071                 while ((d = readdir(dp)) != NULL) {
1072                         if (to_number(d->d_name) < 0) continue;
1073                         if (stat(d->d_name, &s) < 0) {
1074                                 FILE_OP_ERROR(d->d_name, "stat");
1075                                 continue;
1076                         }
1077                         if (!S_ISREG(s.st_mode)) continue;
1078
1079                         msginfo = mh_parse_msg(d->d_name, item);
1080                         if (!msginfo) continue;
1081
1082                         if (!newlist)
1083                                 last = newlist = g_slist_append(NULL, msginfo);
1084                         else {
1085                                 last = g_slist_append(last, msginfo);
1086                                 last = last->next;
1087                         }
1088                         n_newmsg++;
1089                 }
1090         }
1091
1092         closedir(dp);
1093
1094         if (n_newmsg)
1095                 debug_print("%d uncached message(s) found.\n", n_newmsg);
1096         else
1097                 debug_print("done.\n");
1098
1099         /* sort new messages in numerical order */
1100         if (newlist) {
1101                 debug_print("Sorting uncached messages in numerical order...\n");
1102                 newlist = g_slist_sort
1103                         (newlist, (GCompareFunc)procmsg_cmp_msgnum_for_sort);
1104                 debug_print("done.\n");
1105         }
1106
1107         return newlist;
1108 }
1109
1110 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
1111 {
1112         struct stat s;
1113         MsgInfo *msginfo;
1114         MsgFlags flags;
1115
1116         flags.perm_flags = MSG_NEW|MSG_UNREAD;
1117         flags.tmp_flags = 0;
1118
1119         g_return_val_if_fail(item != NULL, NULL);
1120         g_return_val_if_fail(file != NULL, NULL);
1121
1122         if (item->stype == F_QUEUE) {
1123                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
1124         } else if (item->stype == F_DRAFT) {
1125                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
1126         }
1127
1128         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
1129         if (!msginfo) return NULL;
1130
1131         msginfo->msgnum = atoi(file);
1132         msginfo->folder = item;
1133
1134         if (stat(file, &s) < 0) {
1135                 FILE_OP_ERROR(file, "stat");
1136                 msginfo->size = 0;
1137                 msginfo->mtime = 0;
1138         } else {
1139                 msginfo->size = s.st_size;
1140                 msginfo->mtime = s.st_mtime;
1141         }
1142
1143         return msginfo;
1144 }
1145
1146 #if 0
1147 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
1148 {
1149         gchar *entry;
1150         gboolean result;
1151
1152         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
1153         result = is_dir_exist(entry);
1154         g_free(entry);
1155
1156         return result;
1157 }
1158
1159 /*
1160  * check whether PATH is a Maildir style mailbox.
1161  * This is the case if the 3 subdir: new, cur, tmp are existing.
1162  * This functon assumes that entry is an directory
1163  */
1164 static gboolean mh_is_maildir(const gchar *path)
1165 {
1166         return mh_is_maildir_one(path, "new") &&
1167                mh_is_maildir_one(path, "cur") &&
1168                mh_is_maildir_one(path, "tmp");
1169 }
1170 #endif
1171
1172 static void mh_scan_tree_recursive(FolderItem *item)
1173 {
1174         DIR *dp;
1175         struct dirent *d;
1176         struct stat s;
1177         gchar *entry;
1178         gint n_msg = 0;
1179
1180         g_return_if_fail(item != NULL);
1181         g_return_if_fail(item->folder != NULL);
1182
1183         dp = opendir(item->path ? item->path : ".");
1184         if (!dp) {
1185                 FILE_OP_ERROR(item->path ? item->path : ".", "opendir");
1186                 return;
1187         }
1188
1189         debug_print("scanning %s ...\n",
1190                     item->path ? item->path
1191                     : LOCAL_FOLDER(item->folder)->rootpath);
1192         if (item->folder->ui_func)
1193                 item->folder->ui_func(item->folder, item,
1194                                       item->folder->ui_func_data);
1195
1196         while ((d = readdir(dp)) != NULL) {
1197                 if (d->d_name[0] == '.') continue;
1198
1199                 if (item->path)
1200                         entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
1201                                             d->d_name, NULL);
1202                 else
1203                         entry = g_strdup(d->d_name);
1204
1205                 if (stat(entry, &s) < 0) {
1206                         FILE_OP_ERROR(entry, "stat");
1207                         g_free(entry);
1208                         continue;
1209                 }
1210
1211                 if (S_ISDIR(s.st_mode)) {
1212                         FolderItem *new_item;
1213
1214 #if 0
1215                         if (mh_is_maildir(entry)) {
1216                                 g_free(entry);
1217                                 continue;
1218                         }
1219 #endif
1220
1221                         new_item = folder_item_new(item->folder, d->d_name, entry);
1222                         folder_item_append(item, new_item);
1223                         if (!item->path) {
1224                                 if (!strcmp(d->d_name, INBOX_DIR)) {
1225                                         new_item->stype = F_INBOX;
1226                                         item->folder->inbox = new_item;
1227                                 } else if (!strcmp(d->d_name, OUTBOX_DIR)) {
1228                                         new_item->stype = F_OUTBOX;
1229                                         item->folder->outbox = new_item;
1230                                 } else if (!strcmp(d->d_name, DRAFT_DIR)) {
1231                                         new_item->stype = F_DRAFT;
1232                                         item->folder->draft = new_item;
1233                                 } else if (!strcmp(d->d_name, QUEUE_DIR)) {
1234                                         new_item->stype = F_QUEUE;
1235                                         item->folder->queue = new_item;
1236                                 } else if (!strcmp(d->d_name, TRASH_DIR)) {
1237                                         new_item->stype = F_TRASH;
1238                                         item->folder->trash = new_item;
1239                                 }
1240                         }
1241                         mh_scan_tree_recursive(new_item);
1242                 } else if (to_number(d->d_name) != -1) n_msg++;
1243
1244                 g_free(entry);
1245         }
1246
1247         closedir(dp);
1248
1249 /*
1250         if (item->path) {
1251                 gint new, unread, total, min, max;
1252
1253                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
1254                                      &min, &max, 0);
1255                 if (n_msg > total) {
1256                         new += n_msg - total;
1257                         unread += n_msg - total;
1258                 }
1259                 item->new = new;
1260                 item->unread = unread;
1261                 item->total = n_msg;
1262         }
1263 */
1264 }
1265
1266 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1267 {
1268         FolderItem *item = node->data;
1269         gchar **paths = data;
1270         const gchar *oldpath = paths[0];
1271         const gchar *newpath = paths[1];
1272         gchar *base;
1273         gchar *new_itempath;
1274         gint oldpathlen;
1275
1276         oldpathlen = strlen(oldpath);
1277         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1278                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1279                 return TRUE;
1280         }
1281
1282         base = item->path + oldpathlen;
1283         while (*base == G_DIR_SEPARATOR) base++;
1284         if (*base == '\0')
1285                 new_itempath = g_strdup(newpath);
1286         else
1287                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1288                                            NULL);
1289         g_free(item->path);
1290         item->path = new_itempath;
1291
1292         return FALSE;
1293 }