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