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