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         if (msginfo)
 327                 msginfo->msgnum = num;
 328
 329         g_free(file);
 330
 331         return msginfo;
 332 }
 333
 334 gchar *mh_get_new_msg_filename(FolderItem *dest)
 335 {
 336         gchar *destfile;
 337         gchar *destpath;
 338
 339         destpath = folder_item_get_path(dest);
 340         g_return_val_if_fail(destpath != NULL, NULL);
 341
 342         if (!is_dir_exist(destpath))
 343                 make_dir_hier(destpath);
 344
 345         for (;;) {
 346                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 347                                            dest->last_num + 1);
 348                 if (is_file_entry_exist(destfile)) {
 349                         dest->last_num++;
 350                         g_free(destfile);
 351                 } else
 352                         break;
 353         }
 354
 355         g_free(destpath);
 356
 357         return destfile;
 358 }
 359
 360 #define SET_DEST_MSG_FLAGS(fp, dest, msginfo) \
 361 { \
 362         MsgInfo newmsginfo; \
 363  \
 364         newmsginfo.msgnum = dest->last_num; \
 365         newmsginfo.flags = msginfo->flags; \
 366         if (dest->stype == F_OUTBOX || \
 367             dest->stype == F_QUEUE  || \
 368             dest->stype == F_DRAFT  || \
 369             dest->stype == F_TRASH) \
 370                 MSG_UNSET_PERM_FLAGS(newmsginfo.flags, \
 371                                      MSG_NEW|MSG_UNREAD|MSG_DELETED); \
 372  \
 373         procmsg_write_flags(&newmsginfo, fp); \
 374 }
 375
 376 gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 377                 gboolean remove_source)
 378 {
 379         gchar *destfile;
 380
 381         g_return_val_if_fail(dest != NULL, -1);
 382         g_return_val_if_fail(file != NULL, -1);
 383
 384         if (dest->last_num < 0) {
 385                 mh_get_last_num(folder, dest);
 386                 if (dest->last_num < 0) return -1;
 387         }
 388
 389         destfile = mh_get_new_msg_filename(dest);
 390         g_return_val_if_fail(destfile != NULL, -1);
 391
 392         if (link(file, destfile) < 0) {
 393                 if (copy_file(file, destfile, TRUE) < 0) {
 394                         g_warning("can't copy message %s to %s\n",
 395                                   file, destfile);
 396                         g_free(destfile);
 397                         return -1;
 398                 }
 399         }
 400
 401         if (remove_source) {
 402                 if (unlink(file) < 0)
 403                         FILE_OP_ERROR(file, "unlink");
 404         }
 405
 406         g_free(destfile);
 407         dest->last_num++;
 408         return dest->last_num;
 409 }
 410
 411 static gint mh_do_move(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 412 {
 413         gchar *srcfile;
 414         gchar *destfile;
 415         gint filemode = 0;
 416         PrefsFolderItem *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         destfile = mh_get_new_msg_filename(dest);
 434         if (!destfile) return -1;
 435
 436         srcfile = procmsg_get_message_file(msginfo);
 437
 438         debug_print("Moving message %s%c%d to %s ...\n",
 439                     msginfo->folder->path, G_DIR_SEPARATOR,
 440                     msginfo->msgnum, dest->path);
 441
 442         if (move_file(srcfile, destfile, FALSE) < 0) {
 443                 g_free(srcfile);
 444                 g_free(destfile);
 445                 return -1;
 446         }
 447
 448         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 449                 if (chmod(destfile, prefs->folder_chmod) < 0)
 450                         FILE_OP_ERROR(destfile, "chmod");
 451
 452                 /* for mark file */
 453                 filemode = prefs->folder_chmod;
 454                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 455                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 456         }
 457
 458         g_free(srcfile);
 459         g_free(destfile);
 460         dest->last_num++;
 461
 462         return dest->last_num;
 463 }
 464
 465 gint mh_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 466 {
 467         gchar *srcfile;
 468         gint ret = 0;
 469
 470         g_return_val_if_fail(folder != NULL, -1);
 471         g_return_val_if_fail(dest != NULL, -1);
 472         g_return_val_if_fail(msginfo != NULL, -1);
 473         g_return_val_if_fail(msginfo->folder != NULL, -1);
 474
 475         if (folder == msginfo->folder->folder)
 476                 return mh_do_move(folder, dest, msginfo);
 477
 478         srcfile = procmsg_get_message_file(msginfo);
 479         if (!srcfile) return -1;
 480
 481         ret = mh_add_msg(folder, dest, srcfile, FALSE);
 482         g_free(srcfile);
 483
 484         if (ret != -1) {
 485                 gchar *destdir;
 486                 FILE *fp;
 487
 488                 destdir = folder_item_get_path(dest);
 489                 if ((fp = procmsg_open_mark_file(destdir, TRUE)) == NULL)
 490                         g_warning("Can't open mark file.\n");
 491                 else {
 492                         SET_DEST_MSG_FLAGS(fp, dest, msginfo);
 493                         fclose(fp);
 494                 }
 495                 g_free(destdir);
 496
 497                 ret = folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
 498         }
 499
 500         return ret;
 501 }
 502
 503 static gint mh_do_move_msgs_with_dest(Folder *folder, FolderItem *dest,
 504                                       GSList *msglist)
 505 {
 506         gchar *srcfile;
 507         gchar *destfile;
 508         GSList *cur;
 509         MsgInfo *msginfo;
 510         PrefsFolderItem *prefs;
 511
 512         g_return_val_if_fail(dest != NULL, -1);
 513         g_return_val_if_fail(msglist != NULL, -1);
 514
 515         if (dest->last_num < 0) {
 516                 mh_get_last_num(folder, dest);
 517                 if (dest->last_num < 0) return -1;
 518         }
 519
 520         prefs = dest->prefs;
 521
 522         for (cur = msglist; cur != NULL; cur = cur->next) {
 523                 msginfo = (MsgInfo *)cur->data;
 524
 525                 if (msginfo->folder == dest) {
 526                         g_warning("the src folder is identical to the dest.\n");
 527                         continue;
 528                 }
 529                 debug_print("Moving message %s%c%d to %s ...\n",
 530                             msginfo->folder->path, G_DIR_SEPARATOR,
 531                             msginfo->msgnum, dest->path);
 532
 533                 destfile = mh_get_new_msg_filename(dest);
 534                 if (!destfile) return -1;
 535                 srcfile = procmsg_get_message_file(msginfo);
 536
 537                 if (move_file(srcfile, destfile, FALSE) < 0) {
 538                         g_free(srcfile);
 539                         g_free(destfile);
 540                         break;
 541                 }
 542
 543                 g_free(srcfile);
 544                 g_free(destfile);
 545                 dest->last_num++;
 546         }
 547
 548         return dest->last_num;
 549 }
 550
 551 gint mh_move_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
 552 {
 553         MsgInfo *msginfo;
 554         GSList *cur;
 555         gint ret = 0;
 556
 557         msginfo = (MsgInfo *)msglist->data;
 558         if (folder == msginfo->folder->folder)
 559                 return mh_do_move_msgs_with_dest(folder, dest, msglist);
 560
 561         for (cur = msglist; cur != NULL; cur = cur->next) {
 562                 msginfo = (MsgInfo *)cur->data;
 563                 ret = mh_move_msg(folder, dest, msginfo);
 564                 if (ret == -1) break;
 565         }
 566
 567         return ret;
 568 }
 569
 570 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 571 {
 572         gchar *srcfile;
 573         gchar *destfile;
 574         gint filemode = 0;
 575         PrefsFolderItem *prefs;
 576
 577         g_return_val_if_fail(dest != NULL, -1);
 578         g_return_val_if_fail(msginfo != NULL, -1);
 579
 580         if (msginfo->folder == dest) {
 581                 g_warning("the src folder is identical to the dest.\n");
 582                 return -1;
 583         }
 584
 585         if (dest->last_num < 0) {
 586                 mh_get_last_num(folder, dest);
 587                 if (dest->last_num < 0) return -1;
 588         }
 589
 590         prefs = dest->prefs;
 591
 592         srcfile = procmsg_get_message_file(msginfo);
 593         destfile = mh_get_new_msg_filename(dest);
 594         if (!destfile) {
 595                 g_free(srcfile);
 596                 return -1;
 597         }
 598
 599         debug_print("Copying message %s%c%d to %s ...\n",
 600                     msginfo->folder->path, G_DIR_SEPARATOR,
 601                     msginfo->msgnum, dest->path);
 602
 603
 604         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 605         &&  dest->stype != F_QUEUE && dest->stype != F_DRAFT) {
 606                 if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
 607                         g_free(srcfile);
 608                         g_free(destfile);
 609                         return -1;
 610                 }
 611         } else if (copy_file(srcfile, destfile, TRUE) < 0) {
 612                 FILE_OP_ERROR(srcfile, "copy");
 613                 g_free(srcfile);
 614                 g_free(destfile);
 615                 return -1;
 616         }
 617
 618
 619         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 620                 if (chmod(destfile, prefs->folder_chmod) < 0)
 621                         FILE_OP_ERROR(destfile, "chmod");
 622
 623                 /* for mark file */
 624                 filemode = prefs->folder_chmod;
 625                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 626                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 627         }
 628
 629         g_free(srcfile);
 630         g_free(destfile);
 631         dest->last_num++;
 632
 633         return dest->last_num;
 634 }
 635
 636 /*
 637 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 638 {
 639         Folder * src_folder;
 640         gchar * filename;
 641         gint num;
 642         gchar * destdir;
 643         FILE * fp;
 644
 645         src_folder = msginfo->folder->folder;
 646
 647         g_return_val_if_fail(src_folder->fetch_msg != NULL, -1);
 648
 649         filename = src_folder->fetch_msg(src_folder,
 650                                          msginfo->folder,
 651                                          msginfo->msgnum);
 652         if (filename == NULL)
 653                 return -1;
 654
 655         num = folder->add_msg(folder, dest, filename, FALSE);
 656
 657         destdir = folder_item_get_path(dest);
 658
 659         if (fp) {
 660                 MsgInfo newmsginfo;
 661
 662                 newmsginfo.msgnum = dest->last_num;
 663                 newmsginfo.flags = msginfo->flags;
 664                 if (dest->stype == F_OUTBOX ||
 665                     dest->stype == F_QUEUE  ||
 666                     dest->stype == F_DRAFT  ||
 667                     dest->stype == F_TRASH)
 668                         MSG_UNSET_FLAGS(newmsginfo.flags,
 669                                         MSG_NEW|MSG_UNREAD|MSG_DELETED);
 670
 671                 procmsg_write_flags(&newmsginfo, fp);
 672                 fclose(fp);
 673         }
 674
 675         return num;
 676 }
 677 */
 678
 679 gint mh_copy_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
 680 {
 681         gchar *srcfile;
 682         gchar *destfile;
 683         GSList *cur;
 684         MsgInfo *msginfo;
 685
 686         g_return_val_if_fail(dest != NULL, -1);
 687         g_return_val_if_fail(msglist != NULL, -1);
 688
 689         if (dest->last_num < 0) {
 690                 mh_get_last_num(folder, dest);
 691                 if (dest->last_num < 0) return -1;
 692         }
 693
 694         for (cur = msglist; cur != NULL; cur = cur->next) {
 695                 msginfo = (MsgInfo *)cur->data;
 696
 697                 if (msginfo->folder == dest) {
 698                         g_warning("the src folder is identical to the dest.\n");
 699                         continue;
 700                 }
 701                 debug_print("Copying message %s%c%d to %s ...\n",
 702                             msginfo->folder->path, G_DIR_SEPARATOR,
 703                             msginfo->msgnum, dest->path);
 704
 705                 destfile = mh_get_new_msg_filename(dest);
 706                 if (!destfile) break;
 707                 srcfile = procmsg_get_message_file(msginfo);
 708
 709                 if (copy_file(srcfile, destfile, TRUE) < 0) {
 710                         FILE_OP_ERROR(srcfile, "copy");
 711                         g_free(srcfile);
 712                         g_free(destfile);
 713                         break;
 714                 }
 715
 716                 g_free(srcfile);
 717                 g_free(destfile);
 718                 dest->last_num++;
 719         }
 720
 721         return dest->last_num;
 722 }
 723
 724 gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 725 {
 726         gchar *file;
 727
 728         g_return_val_if_fail(item != NULL, -1);
 729
 730         file = mh_fetch_msg(folder, item, num);
 731         g_return_val_if_fail(file != NULL, -1);
 732
 733         if (unlink(file) < 0) {
 734                 FILE_OP_ERROR(file, "unlink");
 735                 g_free(file);
 736                 return -1;
 737         }
 738
 739         g_free(file);
 740         return 0;
 741 }
 742
 743 gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 744 {
 745         gchar *path;
 746         gint val;
 747
 748         g_return_val_if_fail(item != NULL, -1);
 749
 750         path = folder_item_get_path(item);
 751         g_return_val_if_fail(path != NULL, -1);
 752         val = remove_all_numbered_files(path);
 753         g_free(path);
 754
 755         return val;
 756 }
 757
 758 gboolean mh_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 759 {
 760         struct stat s;
 761
 762         if (stat(itos(msginfo->msgnum), &s) < 0 ||
 763             msginfo->size  != s.st_size ||
 764             msginfo->mtime != s.st_mtime)
 765                 return TRUE;
 766
 767         return FALSE;
 768 }
 769
 770 gint mh_scan_folder(Folder *folder, FolderItem *item)
 771 {
 772         gchar *path;
 773         DIR *dp;
 774         struct dirent *d;
 775         struct stat s;
 776         gint max = 0;
 777         gint num;
 778
 779         g_return_val_if_fail(item != NULL, -1);
 780
 781         debug_print("mh_scan_folder(): Scanning %s ...\n", item->path);
 782
 783         path = folder_item_get_path(item);
 784         g_return_val_if_fail(path != NULL, -1);
 785         if (change_dir(path) < 0) {
 786                 g_free(path);
 787                 return -1;
 788         }
 789         g_free(path);
 790
 791         if ((dp = opendir(".")) == NULL) {
 792                 FILE_OP_ERROR(item->path, "opendir");
 793                 return -1;
 794         }
 795
 796         if (folder->ui_func)
 797                 folder->ui_func(folder, item, folder->ui_func_data);
 798
 799         while ((d = readdir(dp)) != NULL) {
 800                 if ((num = to_number(d->d_name)) >= 0 &&
 801                     stat(d->d_name, &s) == 0 &&
 802                     S_ISREG(s.st_mode)) {
 803 /*
 804                         n_msg++;
 805 */
 806                         if (max < num)
 807                                 max = num;
 808                 }
 809         }
 810         closedir(dp);
 811
 812 /*
 813         if (n_msg == 0)
 814                 item->new = item->unread = item->total = 0;
 815         else {
 816                 gint new, unread, total, min, max;
 817
 818                 procmsg_get_mark_sum(".", &new, &unread, &total, &min, &max, 0);
 819                 if (n_msg > total) {
 820                         new += n_msg - total;
 821                         unread += n_msg - total;
 822                 }
 823                 item->new = new;
 824                 item->unread = unread;
 825                 item->total = n_msg;
 826         }
 827 */
 828         debug_print("Last number in dir %s = %d\n", item->path, max);
 829         item->last_num = max;
 830
 831         return 0;
 832 }
 833
 834 void mh_scan_tree(Folder *folder)
 835 {
 836         FolderItem *item;
 837         gchar *rootpath;
 838
 839         g_return_if_fail(folder != NULL);
 840
 841         item = folder_item_new(folder, folder->name, NULL);
 842         item->folder = folder;
 843         folder->node = g_node_new(item);
 844
 845         rootpath = folder_item_get_path(item);
 846         if (change_dir(rootpath) < 0) {
 847                 g_free(rootpath);
 848                 return;
 849         }
 850         g_free(rootpath);
 851
 852         mh_create_tree(folder);
 853         mh_scan_tree_recursive(item);
 854 }
 855
 856 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 857 { \
 858         if (!is_dir_exist(dir)) { \
 859                 if (is_file_exist(dir)) { \
 860                         g_warning("File `%s' already exists.\n" \
 861                                     "Can't create folder.", dir); \
 862                         return -1; \
 863                 } \
 864                 if (make_dir(dir) < 0) \
 865                         return -1; \
 866         } \
 867 }
 868
 869 gint mh_create_tree(Folder *folder)
 870 {
 871         gchar *rootpath;
 872
 873         g_return_val_if_fail(folder != NULL, -1);
 874
 875         CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
 876         rootpath = LOCAL_FOLDER(folder)->rootpath;
 877         MAKE_DIR_IF_NOT_EXIST(rootpath);
 878         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 879         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 880         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 881         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 882         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 883         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 884
 885         return 0;
 886 }
 887
 888 #undef MAKE_DIR_IF_NOT_EXIST
 889
 890 FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 891                              const gchar *name)
 892 {
 893         gchar *path;
 894         gchar *fullpath;
 895         FolderItem *new_item;
 896         gchar *mh_sequences_filename;
 897         FILE *mh_sequences_file;
 898
 899         g_return_val_if_fail(folder != NULL, NULL);
 900         g_return_val_if_fail(parent != NULL, NULL);
 901         g_return_val_if_fail(name != NULL, NULL);
 902
 903         path = folder_item_get_path(parent);
 904         if (!is_dir_exist(path))
 905                 if (make_dir_hier(path) != 0)
 906                         return NULL;
 907
 908         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, name, NULL);
 909         g_free(path);
 910
 911         if (make_dir(fullpath) < 0) {
 912                 g_free(fullpath);
 913                 return NULL;
 914         }
 915
 916         g_free(fullpath);
 917
 918         if (parent->path)
 919                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 920                                    NULL);
 921         else
 922                 path = g_strdup(name);
 923         new_item = folder_item_new(folder, name, path);
 924         folder_item_append(parent, new_item);
 925
 926         g_free(path);
 927
 928         path = folder_item_get_path(new_item);
 929         mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
 930                                             ".mh_sequences", NULL);
 931         if ((mh_sequences_file = fopen(mh_sequences_filename, "a+b")) != NULL) {
 932                 fclose(mh_sequences_file);
 933         }
 934         g_free(mh_sequences_filename);
 935         g_free(path);
 936
 937         return new_item;
 938 }
 939
 940 gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
 941 {
 942         gchar *oldpath;
 943         gchar *dirname;
 944         gchar *newpath;
 945         GNode *node;
 946         gchar *paths[2];
 947
 948         g_return_val_if_fail(folder != NULL, -1);
 949         g_return_val_if_fail(item != NULL, -1);
 950         g_return_val_if_fail(item->path != NULL, -1);
 951         g_return_val_if_fail(name != NULL, -1);
 952
 953         oldpath = folder_item_get_path(item);
 954         if (!is_dir_exist(oldpath))
 955                 make_dir_hier(oldpath);
 956
 957         dirname = g_dirname(oldpath);
 958         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 959         g_free(dirname);
 960
 961         if (rename(oldpath, newpath) < 0) {
 962                 FILE_OP_ERROR(oldpath, "rename");
 963                 g_free(oldpath);
 964                 g_free(newpath);
 965                 return -1;
 966         }
 967
 968         g_free(oldpath);
 969         g_free(newpath);
 970
 971         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 972                 dirname = g_dirname(item->path);
 973                 newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 974                 g_free(dirname);
 975         } else
 976                 newpath = g_strdup(name);
 977
 978         g_free(item->name);
 979         item->name = g_strdup(name);
 980
 981         node = g_node_find(item->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL,
 982                            item);
 983         paths[0] = g_strdup(item->path);
 984         paths[1] = newpath;
 985         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 986                         mh_rename_folder_func, paths);
 987
 988         g_free(paths[0]);
 989         g_free(paths[1]);
 990         return 0;
 991 }
 992
 993 gint mh_remove_folder(Folder *folder, FolderItem *item)
 994 {
 995         gchar *path;
 996
 997         g_return_val_if_fail(folder != NULL, -1);
 998         g_return_val_if_fail(item != NULL, -1);
 999         g_return_val_if_fail(item->path != NULL, -1);
1000
1001         path = folder_item_get_path(item);
1002         if (remove_dir_recursive(path) < 0) {
1003                 g_warning("can't remove directory `%s'\n", path);
1004                 g_free(path);
1005                 return -1;
1006         }
1007
1008         g_free(path);
1009         folder_item_remove(item);
1010         return 0;
1011 }
1012
1013
1014 static GSList *mh_get_uncached_msgs(GHashTable *msg_table, FolderItem *item)
1015 {
1016         gchar *path;
1017         DIR *dp;
1018         struct dirent *d;
1019         struct stat s;
1020         GSList *newlist = NULL;
1021         GSList *last = NULL;
1022         MsgInfo *msginfo;
1023         gint n_newmsg = 0;
1024         gint num;
1025
1026         g_return_val_if_fail(item != NULL, NULL);
1027
1028         path = folder_item_get_path(item);
1029         g_return_val_if_fail(path != NULL, NULL);
1030         if (change_dir(path) < 0) {
1031                 g_free(path);
1032                 return NULL;
1033         }
1034         g_free(path);
1035
1036         if ((dp = opendir(".")) == NULL) {
1037                 FILE_OP_ERROR(item->path, "opendir");
1038                 return NULL;
1039         }
1040
1041         debug_print("Searching uncached messages...\n");
1042
1043         if (msg_table) {
1044                 while ((d = readdir(dp)) != NULL) {
1045                         if ((num = to_number(d->d_name)) < 0) continue;
1046                         if (stat(d->d_name, &s) < 0) {
1047                                 FILE_OP_ERROR(d->d_name, "stat");
1048                                 continue;
1049                         }
1050                         if (!S_ISREG(s.st_mode)) continue;
1051
1052                         msginfo = g_hash_table_lookup
1053                                 (msg_table, GUINT_TO_POINTER(num));
1054
1055                         if (!msginfo) {
1056                                 /* not found in the cache (uncached message) */
1057                                 msginfo = mh_parse_msg(d->d_name, item);
1058                                 if (!msginfo) continue;
1059
1060                                 if (!newlist)
1061                                         last = newlist =
1062                                                 g_slist_append(NULL, msginfo);
1063                                 else {
1064                                         last = g_slist_append(last, msginfo);
1065                                         last = last->next;
1066                                 }
1067                                 n_newmsg++;
1068                         }
1069                 }
1070         } else {
1071                 /* discard all previous cache */
1072                 while ((d = readdir(dp)) != NULL) {
1073                         if (to_number(d->d_name) < 0) continue;
1074                         if (stat(d->d_name, &s) < 0) {
1075                                 FILE_OP_ERROR(d->d_name, "stat");
1076                                 continue;
1077                         }
1078                         if (!S_ISREG(s.st_mode)) continue;
1079
1080                         msginfo = mh_parse_msg(d->d_name, item);
1081                         if (!msginfo) continue;
1082
1083                         if (!newlist)
1084                                 last = newlist = g_slist_append(NULL, msginfo);
1085                         else {
1086                                 last = g_slist_append(last, msginfo);
1087                                 last = last->next;
1088                         }
1089                         n_newmsg++;
1090                 }
1091         }
1092
1093         closedir(dp);
1094
1095         if (n_newmsg)
1096                 debug_print("%d uncached message(s) found.\n", n_newmsg);
1097         else
1098                 debug_print("done.\n");
1099
1100         /* sort new messages in numerical order */
1101         if (newlist) {
1102                 debug_print("Sorting uncached messages in numerical order...\n");
1103                 newlist = g_slist_sort
1104                         (newlist, (GCompareFunc)procmsg_cmp_msgnum_for_sort);
1105                 debug_print("done.\n");
1106         }
1107
1108         return newlist;
1109 }
1110
1111 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
1112 {
1113         struct stat s;
1114         MsgInfo *msginfo;
1115         MsgFlags flags;
1116
1117         flags.perm_flags = MSG_NEW|MSG_UNREAD;
1118         flags.tmp_flags = 0;
1119
1120         g_return_val_if_fail(item != NULL, NULL);
1121         g_return_val_if_fail(file != NULL, NULL);
1122
1123         if (item->stype == F_QUEUE) {
1124                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
1125         } else if (item->stype == F_DRAFT) {
1126                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
1127         }
1128
1129         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
1130         if (!msginfo) return NULL;
1131
1132         msginfo->msgnum = atoi(file);
1133         msginfo->folder = item;
1134
1135         if (stat(file, &s) < 0) {
1136                 FILE_OP_ERROR(file, "stat");
1137                 msginfo->size = 0;
1138                 msginfo->mtime = 0;
1139         } else {
1140                 msginfo->size = s.st_size;
1141                 msginfo->mtime = s.st_mtime;
1142         }
1143
1144         return msginfo;
1145 }
1146
1147 #if 0
1148 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
1149 {
1150         gchar *entry;
1151         gboolean result;
1152
1153         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
1154         result = is_dir_exist(entry);
1155         g_free(entry);
1156
1157         return result;
1158 }
1159
1160 /*
1161  * check whether PATH is a Maildir style mailbox.
1162  * This is the case if the 3 subdir: new, cur, tmp are existing.
1163  * This functon assumes that entry is an directory
1164  */
1165 static gboolean mh_is_maildir(const gchar *path)
1166 {
1167         return mh_is_maildir_one(path, "new") &&
1168                mh_is_maildir_one(path, "cur") &&
1169                mh_is_maildir_one(path, "tmp");
1170 }
1171 #endif
1172
1173 static void mh_scan_tree_recursive(FolderItem *item)
1174 {
1175         DIR *dp;
1176         struct dirent *d;
1177         struct stat s;
1178         gchar *entry;
1179         gint n_msg = 0;
1180
1181         g_return_if_fail(item != NULL);
1182         g_return_if_fail(item->folder != NULL);
1183
1184         dp = opendir(item->path ? item->path : ".");
1185         if (!dp) {
1186                 FILE_OP_ERROR(item->path ? item->path : ".", "opendir");
1187                 return;
1188         }
1189
1190         debug_print("scanning %s ...\n",
1191                     item->path ? item->path
1192                     : LOCAL_FOLDER(item->folder)->rootpath);
1193         if (item->folder->ui_func)
1194                 item->folder->ui_func(item->folder, item,
1195                                       item->folder->ui_func_data);
1196
1197         while ((d = readdir(dp)) != NULL) {
1198                 if (d->d_name[0] == '.') continue;
1199
1200                 if (item->path)
1201                         entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
1202                                             d->d_name, NULL);
1203                 else
1204                         entry = g_strdup(d->d_name);
1205
1206                 if (stat(entry, &s) < 0) {
1207                         FILE_OP_ERROR(entry, "stat");
1208                         g_free(entry);
1209                         continue;
1210                 }
1211
1212                 if (S_ISDIR(s.st_mode)) {
1213                         FolderItem *new_item;
1214
1215 #if 0
1216                         if (mh_is_maildir(entry)) {
1217                                 g_free(entry);
1218                                 continue;
1219                         }
1220 #endif
1221
1222                         new_item = folder_item_new(item->folder, d->d_name, entry);
1223                         folder_item_append(item, new_item);
1224                         if (!item->path) {
1225                                 if (!strcmp(d->d_name, INBOX_DIR)) {
1226                                         new_item->stype = F_INBOX;
1227                                         item->folder->inbox = new_item;
1228                                 } else if (!strcmp(d->d_name, OUTBOX_DIR)) {
1229                                         new_item->stype = F_OUTBOX;
1230                                         item->folder->outbox = new_item;
1231                                 } else if (!strcmp(d->d_name, DRAFT_DIR)) {
1232                                         new_item->stype = F_DRAFT;
1233                                         item->folder->draft = new_item;
1234                                 } else if (!strcmp(d->d_name, QUEUE_DIR)) {
1235                                         new_item->stype = F_QUEUE;
1236                                         item->folder->queue = new_item;
1237                                 } else if (!strcmp(d->d_name, TRASH_DIR)) {
1238                                         new_item->stype = F_TRASH;
1239                                         item->folder->trash = new_item;
1240                                 }
1241                         }
1242                         mh_scan_tree_recursive(new_item);
1243                 } else if (to_number(d->d_name) != -1) n_msg++;
1244
1245                 g_free(entry);
1246         }
1247
1248         closedir(dp);
1249
1250 /*
1251         if (item->path) {
1252                 gint new, unread, total, min, max;
1253
1254                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
1255                                      &min, &max, 0);
1256                 if (n_msg > total) {
1257                         new += n_msg - total;
1258                         unread += n_msg - total;
1259                 }
1260                 item->new = new;
1261                 item->unread = unread;
1262                 item->total = n_msg;
1263         }
1264 */
1265 }
1266
1267 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1268 {
1269         FolderItem *item = node->data;
1270         gchar **paths = data;
1271         const gchar *oldpath = paths[0];
1272         const gchar *newpath = paths[1];
1273         gchar *base;
1274         gchar *new_itempath;
1275         gint oldpathlen;
1276
1277         oldpathlen = strlen(oldpath);
1278         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1279                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1280                 return TRUE;
1281         }
1282
1283         base = item->path + oldpathlen;
1284         while (*base == G_DIR_SEPARATOR) base++;
1285         if (*base == '\0')
1286                 new_itempath = g_strdup(newpath);
1287         else
1288                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1289                                            NULL);
1290         g_free(item->path);
1291         item->path = new_itempath;
1292
1293         return FALSE;
1294 }