src/mh.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <dirent.h>
  28 #include <sys/stat.h>
  29 #include <unistd.h>
  30 #include <string.h>
  31 #include <errno.h>
  32
  33 #undef MEASURE_TIME
  34
  35 #ifdef MEASURE_TIME
  36 #  include <sys/time.h>
  37 #endif
  38
  39 #include "intl.h"
  40 #include "folder.h"
  41 #include "mh.h"
  42 #include "procmsg.h"
  43 #include "procheader.h"
  44 #include "utils.h"
  45
  46 static void     mh_folder_init                  (Folder         *folder,
  47                                                  const gchar    *name,
  48                                                  const gchar    *path);
  49
  50 GSList  *mh_get_msg_list        (Folder         *folder,
  51                                  FolderItem     *item,
  52                                  gboolean        use_cache);
  53 gchar   *mh_fetch_msg           (Folder         *folder,
  54                                  FolderItem     *item,
  55                                  gint            num);
  56 MsgInfo   *mh_get_msginfo       (Folder         *folder,
  57                                  FolderItem     *item,
  58                                  gint            num);
  59 gint     mh_add_msg             (Folder         *folder,
  60                                  FolderItem     *dest,
  61                                  const gchar    *file,
  62                                  gboolean        remove_source);
  63 gint     mh_move_msg            (Folder         *folder,
  64                                  FolderItem     *dest,
  65                                  MsgInfo        *msginfo);
  66 gint     mh_move_msgs_with_dest (Folder         *folder,
  67                                  FolderItem     *dest,
  68                                  GSList         *msglist);
  69 gint     mh_copy_msg            (Folder         *folder,
  70                                  FolderItem     *dest,
  71                                  MsgInfo        *msginfo);
  72 gint     mh_copy_msgs_with_dest (Folder         *folder,
  73                                  FolderItem     *dest,
  74                                  GSList         *msglist);
  75 gint     mh_remove_msg          (Folder         *folder,
  76                                  FolderItem     *item,
  77                                  gint            num);
  78 gint     mh_remove_all_msg      (Folder         *folder,
  79                                  FolderItem     *item);
  80 gboolean mh_is_msg_changed      (Folder         *folder,
  81                                  FolderItem     *item,
  82                                  MsgInfo        *msginfo);
  83
  84 gint    mh_scan_folder          (Folder         *folder,
  85                                  FolderItem     *item);
  86 gint mh_get_num_list            (Folder         *folder,
  87                                  FolderItem     *item,
  88                                  GSList        **list);
  89 void    mh_scan_tree            (Folder         *folder);
  90
  91 gint    mh_create_tree          (Folder         *folder);
  92 FolderItem *mh_create_folder    (Folder         *folder,
  93                                  FolderItem     *parent,
  94                                  const gchar    *name);
  95 gint    mh_rename_folder        (Folder         *folder,
  96                                  FolderItem     *item,
  97                                  const gchar    *name);
  98 gint    mh_remove_folder        (Folder         *folder,
  99                                  FolderItem     *item);
 100
 101 gchar   *mh_get_new_msg_filename                (FolderItem     *dest);
 102
 103 static GSList  *mh_get_uncached_msgs            (GHashTable     *msg_table,
 104                                                  FolderItem     *item);
 105 static MsgInfo *mh_parse_msg                    (const gchar    *file,
 106                                                  FolderItem     *item);
 107 static void     mh_scan_tree_recursive          (FolderItem     *item);
 108
 109 static gboolean mh_rename_folder_func           (GNode          *node,
 110                                                  gpointer        data);
 111
 112
 113 Folder *mh_folder_new(const gchar *name, const gchar *path)
 114 {
 115         Folder *folder;
 116
 117         folder = (Folder *)g_new0(MHFolder, 1);
 118         mh_folder_init(folder, name, path);
 119
 120         return folder;
 121 }
 122
 123 void mh_folder_destroy(Folder *folder)
 124 {
 125         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 126 }
 127
 128 static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 129 {
 130         folder->type = F_MH;
 131
 132         folder_local_folder_init(folder, name, path);
 133
 134 /*      folder->get_msg_list        = mh_get_msg_list; */
 135         folder->fetch_msg           = mh_fetch_msg;
 136         folder->get_msginfo         = mh_get_msginfo;
 137         folder->add_msg             = mh_add_msg;
 138         folder->move_msg            = mh_move_msg;
 139         folder->move_msgs_with_dest = mh_move_msgs_with_dest;
 140         folder->copy_msg            = mh_copy_msg;
 141         folder->copy_msgs_with_dest = mh_copy_msgs_with_dest;
 142         folder->remove_msg          = mh_remove_msg;
 143         folder->remove_all_msg      = mh_remove_all_msg;
 144         folder->is_msg_changed      = mh_is_msg_changed;
 145 /*      folder->scan                = mh_scan_folder; */
 146         folder->get_num_list        = mh_get_num_list;
 147         folder->scan_tree           = mh_scan_tree;
 148         folder->create_tree         = mh_create_tree;
 149         folder->create_folder       = mh_create_folder;
 150         folder->rename_folder       = mh_rename_folder;
 151         folder->remove_folder       = mh_remove_folder;
 152         folder->destroy             = mh_folder_destroy;
 153 }
 154
 155 void mh_get_last_num(Folder *folder, FolderItem *item)
 156 {
 157         gchar *path;
 158         DIR *dp;
 159         struct dirent *d;
 160         struct stat s;
 161         gint max = 0;
 162         gint num;
 163
 164         g_return_if_fail(item != NULL);
 165
 166         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 167
 168         path = folder_item_get_path(item);
 169         g_return_if_fail(path != NULL);
 170         if (change_dir(path) < 0) {
 171                 g_free(path);
 172                 return;
 173         }
 174         g_free(path);
 175
 176         if ((dp = opendir(".")) == NULL) {
 177                 FILE_OP_ERROR(item->path, "opendir");
 178                 return;
 179         }
 180
 181         while ((d = readdir(dp)) != NULL) {
 182                 if ((num = to_number(d->d_name)) >= 0 &&
 183                     stat(d->d_name, &s) == 0 &&
 184                     S_ISREG(s.st_mode)) {
 185                         if (max < num)
 186                                 max = num;
 187                 }
 188         }
 189         closedir(dp);
 190
 191         debug_print("Last number in dir %s = %d\n", item->path, max);
 192         item->last_num = max;
 193 }
 194
 195 gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list)
 196 {
 197
 198         gchar *path;
 199         DIR *dp;
 200         struct dirent *d;
 201         struct stat s;
 202         gint num, nummsgs = 0;
 203
 204         g_return_val_if_fail(item != NULL, -1);
 205
 206         debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
 207
 208         path = folder_item_get_path(item);
 209         g_return_val_if_fail(path != NULL, -1);
 210         if (change_dir(path) < 0) {
 211                 g_free(path);
 212                 return -1;
 213         }
 214         g_free(path);
 215
 216         if ((dp = opendir(".")) == NULL) {
 217                 FILE_OP_ERROR(item->path, "opendir");
 218                 return -1;
 219         }
 220
 221         while ((d = readdir(dp)) != NULL) {
 222                 if ((num = to_number(d->d_name)) >= 0 &&
 223                     stat(d->d_name, &s) == 0 &&
 224                     S_ISREG(s.st_mode)) {
 225                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 226                     nummsgs++;
 227                 }
 228         }
 229         closedir(dp);
 230
 231         return nummsgs;
 232 }
 233
 234 GSList *mh_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 235 {
 236         GSList *mlist;
 237         GHashTable *msg_table;
 238         gchar *path;
 239         struct stat s;
 240         gboolean scan_new = TRUE;
 241 #ifdef MEASURE_TIME
 242         struct timeval tv_before, tv_after, tv_result;
 243
 244         gettimeofday(&tv_before, NULL);
 245 #endif
 246
 247         g_return_val_if_fail(item != NULL, NULL);
 248
 249         path = folder_item_get_path(item);
 250         if (stat(path, &s) < 0) {
 251                 FILE_OP_ERROR(path, "stat");
 252         } else {
 253                 time_t mtime;
 254
 255                 mtime = MAX(s.st_mtime, s.st_ctime);
 256                 if (item->mtime == mtime) {
 257                         debug_print("Folder is not modified.\n");
 258                         scan_new = FALSE;
 259                 } else
 260                         item->mtime = mtime;
 261         }
 262         g_free(path);
 263
 264         if (use_cache && !scan_new) {
 265                 mlist = procmsg_read_cache(item, FALSE);
 266                 if (!mlist)
 267                         mlist = mh_get_uncached_msgs(NULL, item);
 268         } else if (use_cache) {
 269                 GSList *newlist;
 270
 271                 mlist = procmsg_read_cache(item, TRUE);
 272                 msg_table = procmsg_msg_hash_table_create(mlist);
 273
 274                 newlist = mh_get_uncached_msgs(msg_table, item);
 275                 if (msg_table)
 276                         g_hash_table_destroy(msg_table);
 277
 278                 mlist = g_slist_concat(mlist, newlist);
 279         } else
 280                 mlist = mh_get_uncached_msgs(NULL, item);
 281
 282         procmsg_set_flags(mlist, item);
 283
 284 #ifdef MEASURE_TIME
 285         gettimeofday(&tv_after, NULL);
 286
 287         timersub(&tv_after, &tv_before, &tv_result);
 288         g_print("mh_get_msg_list: %s: elapsed time: %ld.%06ld sec\n",
 289                 item->path, tv_result.tv_sec, tv_result.tv_usec);
 290 #endif
 291
 292         return mlist;
 293 }
 294
 295 gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 296 {
 297         gchar *path;
 298         gchar *file;
 299
 300         g_return_val_if_fail(item != NULL, NULL);
 301         g_return_val_if_fail(num > 0, NULL);
 302
 303         path = folder_item_get_path(item);
 304         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 305         g_free(path);
 306         if (!is_file_exist(file)) {
 307                 g_free(file);
 308                 return NULL;
 309         }
 310
 311         return file;
 312 }
 313
 314 MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 315 {
 316         MsgInfo *msginfo;
 317         gchar *file;
 318
 319         g_return_val_if_fail(item != NULL, NULL);
 320         g_return_val_if_fail(num > 0, NULL);
 321
 322         file = mh_fetch_msg(folder, item, num);
 323         if (!file) return NULL;
 324
 325         msginfo = mh_parse_msg(file, item);
 326         msginfo->msgnum = num;
 327
 328         g_free(file);
 329
 330         return msginfo;
 331 }
 332
 333 gchar *mh_get_new_msg_filename(FolderItem *dest)
 334 {
 335         gchar *destfile;
 336         gchar *destpath;
 337
 338         destpath = folder_item_get_path(dest);
 339         g_return_val_if_fail(destpath != NULL, NULL);
 340
 341         if (!is_dir_exist(destpath))
 342                 make_dir_hier(destpath);
 343
 344         for (;;) {
 345                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 346                                            dest->last_num + 1);
 347                 if (is_file_entry_exist(destfile)) {
 348                         dest->last_num++;
 349                         g_free(destfile);
 350                 } else
 351                         break;
 352         }
 353
 354         g_free(destpath);
 355
 356         return destfile;
 357 }
 358
 359 #define SET_DEST_MSG_FLAGS(fp, dest, msginfo) \
 360 { \
 361         MsgInfo newmsginfo; \
 362  \
 363         newmsginfo.msgnum = dest->last_num; \
 364         newmsginfo.flags = msginfo->flags; \
 365         if (dest->stype == F_OUTBOX || \
 366             dest->stype == F_QUEUE  || \
 367             dest->stype == F_DRAFT  || \
 368             dest->stype == F_TRASH) \
 369                 MSG_UNSET_PERM_FLAGS(newmsginfo.flags, \
 370                                      MSG_NEW|MSG_UNREAD|MSG_DELETED); \
 371  \
 372         procmsg_write_flags(&newmsginfo, fp); \
 373 }
 374
 375 gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 376                 gboolean remove_source)
 377 {
 378         gchar *destfile;
 379
 380         g_return_val_if_fail(dest != NULL, -1);
 381         g_return_val_if_fail(file != NULL, -1);
 382
 383         if (dest->last_num < 0) {
 384                 mh_get_last_num(folder, dest);
 385                 if (dest->last_num < 0) return -1;
 386         }
 387
 388         destfile = mh_get_new_msg_filename(dest);
 389         g_return_val_if_fail(destfile != NULL, -1);
 390
 391         if (link(file, destfile) < 0) {
 392                 if (copy_file(file, destfile, TRUE) < 0) {
 393                         g_warning(_("can't copy message %s to %s\n"),
 394                                   file, destfile);
 395                         g_free(destfile);
 396                         return -1;
 397                 }
 398         }
 399
 400         if (remove_source) {
 401                 if (unlink(file) < 0)
 402                         FILE_OP_ERROR(file, "unlink");
 403         }
 404
 405         g_free(destfile);
 406         dest->last_num++;
 407         return dest->last_num;
 408 }
 409
 410 static gint mh_do_move(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 411 {
 412         gchar *srcfile;
 413         gchar *destfile;
 414         gint filemode = 0;
 415         PrefsFolderItem *prefs;
 416
 417         g_return_val_if_fail(dest != NULL, -1);
 418         g_return_val_if_fail(msginfo != NULL, -1);
 419
 420         if (msginfo->folder == dest) {
 421                 g_warning(_("the src folder is identical to the dest.\n"));
 422                 return -1;
 423         }
 424
 425         if (dest->last_num < 0) {
 426                 mh_get_last_num(folder, dest);
 427                 if (dest->last_num < 0) return -1;
 428         }
 429
 430         prefs = dest->prefs;
 431
 432         destfile = mh_get_new_msg_filename(dest);
 433         if (!destfile) return -1;
 434
 435         srcfile = procmsg_get_message_file(msginfo);
 436
 437         debug_print("Moving message %s%c%d to %s ...\n",
 438                     msginfo->folder->path, G_DIR_SEPARATOR,
 439                     msginfo->msgnum, dest->path);
 440
 441         if (move_file(srcfile, destfile, FALSE) < 0) {
 442                 g_free(srcfile);
 443                 g_free(destfile);
 444                 return -1;
 445         }
 446
 447         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 448                 if (chmod(destfile, prefs->folder_chmod) < 0)
 449                         FILE_OP_ERROR(destfile, "chmod");
 450
 451                 /* for mark file */
 452                 filemode = prefs->folder_chmod;
 453                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 454                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 455         }
 456
 457         g_free(srcfile);
 458         g_free(destfile);
 459         dest->last_num++;
 460
 461         return dest->last_num;
 462 }
 463
 464 gint mh_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 465 {
 466         gchar *srcfile;
 467         gint ret = 0;
 468
 469         g_return_val_if_fail(folder != NULL, -1);
 470         g_return_val_if_fail(dest != NULL, -1);
 471         g_return_val_if_fail(msginfo != NULL, -1);
 472         g_return_val_if_fail(msginfo->folder != NULL, -1);
 473
 474         if (folder == msginfo->folder->folder)
 475                 return mh_do_move(folder, dest, msginfo);
 476
 477         srcfile = procmsg_get_message_file(msginfo);
 478         if (!srcfile) return -1;
 479
 480         ret = mh_add_msg(folder, dest, srcfile, FALSE);
 481         g_free(srcfile);
 482
 483         if (ret != -1) {
 484                 gchar *destdir;
 485                 FILE *fp;
 486
 487                 destdir = folder_item_get_path(dest);
 488                 if ((fp = procmsg_open_mark_file(destdir, TRUE)) == NULL)
 489                         g_warning(_("Can't open mark file.\n"));
 490                 else {
 491                         SET_DEST_MSG_FLAGS(fp, dest, msginfo);
 492                         fclose(fp);
 493                 }
 494                 g_free(destdir);
 495
 496                 ret = folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
 497         }
 498
 499         return ret;
 500 }
 501
 502 static gint mh_do_move_msgs_with_dest(Folder *folder, FolderItem *dest,
 503                                       GSList *msglist)
 504 {
 505         gchar *srcfile;
 506         gchar *destfile;
 507         GSList *cur;
 508         MsgInfo *msginfo;
 509         PrefsFolderItem *prefs;
 510
 511         g_return_val_if_fail(dest != NULL, -1);
 512         g_return_val_if_fail(msglist != NULL, -1);
 513
 514         if (dest->last_num < 0) {
 515                 mh_get_last_num(folder, dest);
 516                 if (dest->last_num < 0) return -1;
 517         }
 518
 519         prefs = dest->prefs;
 520
 521         for (cur = msglist; cur != NULL; cur = cur->next) {
 522                 msginfo = (MsgInfo *)cur->data;
 523
 524                 if (msginfo->folder == dest) {
 525                         g_warning(_("the src folder is identical to the dest.\n"));
 526                         continue;
 527                 }
 528                 debug_print("Moving message %s%c%d to %s ...\n",
 529                             msginfo->folder->path, G_DIR_SEPARATOR,
 530                             msginfo->msgnum, dest->path);
 531
 532                 destfile = mh_get_new_msg_filename(dest);
 533                 if (!destfile) return -1;
 534                 srcfile = procmsg_get_message_file(msginfo);
 535
 536                 if (move_file(srcfile, destfile, FALSE) < 0) {
 537                         g_free(srcfile);
 538                         g_free(destfile);
 539                         break;
 540                 }
 541
 542                 g_free(srcfile);
 543                 g_free(destfile);
 544                 dest->last_num++;
 545         }
 546
 547         return dest->last_num;
 548 }
 549
 550 gint mh_move_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
 551 {
 552         MsgInfo *msginfo;
 553         GSList *cur;
 554         gint ret = 0;
 555
 556         msginfo = (MsgInfo *)msglist->data;
 557         if (folder == msginfo->folder->folder)
 558                 return mh_do_move_msgs_with_dest(folder, dest, msglist);
 559
 560         for (cur = msglist; cur != NULL; cur = cur->next) {
 561                 msginfo = (MsgInfo *)cur->data;
 562                 ret = mh_move_msg(folder, dest, msginfo);
 563                 if (ret == -1) break;
 564         }
 565
 566         return ret;
 567 }
 568
 569 static void mh_remove_queue_headers (const gchar *file)
 570 {
 571         FILE *fp, *fp2;
 572         char *tmp;
 573         fp = fopen(file, "rb");
 574         tmp = get_tmp_file();
 575
 576         fp2 = fopen(tmp, "wb");
 577         if (fp && fp2) {
 578                 char buf[BUFFSIZE];
 579                 int len;
 580                 while (fgets(buf, sizeof(buf), fp) != NULL)
 581                         if (buf[0] == '\r' || buf[0] == '\n')
 582                                 break;
 583
 584                 while ((len=fread(buf, sizeof(char), sizeof(buf), fp)) > 0) {
 585                         fwrite(buf, len, 1, fp2);
 586                 }
 587                 fclose(fp);
 588                 fclose(fp2);
 589                 move_file(tmp, file, TRUE);
 590         } else {
 591                 if (fp)
 592                         fclose(fp);
 593                 else
 594                         g_warning (_("Couldn't fopen(\"%s\",\"rb\")\n"), file);
 595                 if (fp2)
 596                         fclose(fp2);
 597                 else
 598                         g_warning (_("Couldn't fopen(\"%s\",\"wb\")\n"), tmp);
 599         }
 600         g_free(tmp);
 601 }
 602
 603 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 604 {
 605         gchar *srcfile;
 606         gchar *destfile;
 607         gint filemode = 0;
 608         PrefsFolderItem *prefs;
 609
 610         g_return_val_if_fail(dest != NULL, -1);
 611         g_return_val_if_fail(msginfo != NULL, -1);
 612
 613         if (msginfo->folder == dest) {
 614                 g_warning(_("the src folder is identical to the dest.\n"));
 615                 return -1;
 616         }
 617
 618         if (dest->last_num < 0) {
 619                 mh_get_last_num(folder, dest);
 620                 if (dest->last_num < 0) return -1;
 621         }
 622
 623         prefs = dest->prefs;
 624
 625         srcfile = procmsg_get_message_file(msginfo);
 626         destfile = mh_get_new_msg_filename(dest);
 627         if (!destfile) {
 628                 g_free(srcfile);
 629                 return -1;
 630         }
 631
 632         debug_print("Copying message %s%c%d to %s ...\n",
 633                     msginfo->folder->path, G_DIR_SEPARATOR,
 634                     msginfo->msgnum, dest->path);
 635
 636
 637         if (copy_file(srcfile, destfile, TRUE) < 0) {
 638                 FILE_OP_ERROR(srcfile, "copy");
 639                 g_free(srcfile);
 640                 g_free(destfile);
 641                 return -1;
 642         }
 643
 644         if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
 645         &&  dest->stype != F_QUEUE && dest->stype != F_DRAFT)
 646                 mh_remove_queue_headers(destfile);
 647
 648         if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
 649                 if (chmod(destfile, prefs->folder_chmod) < 0)
 650                         FILE_OP_ERROR(destfile, "chmod");
 651
 652                 /* for mark file */
 653                 filemode = prefs->folder_chmod;
 654                 if (filemode & S_IRGRP) filemode |= S_IWGRP;
 655                 if (filemode & S_IROTH) filemode |= S_IWOTH;
 656         }
 657
 658         g_free(srcfile);
 659         g_free(destfile);
 660         dest->last_num++;
 661
 662         return dest->last_num;
 663 }
 664
 665 /*
 666 gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 667 {
 668         Folder * src_folder;
 669         gchar * filename;
 670         gint num;
 671         gchar * destdir;
 672         FILE * fp;
 673
 674         src_folder = msginfo->folder->folder;
 675
 676         g_return_val_if_fail(src_folder->fetch_msg != NULL, -1);
 677
 678         filename = src_folder->fetch_msg(src_folder,
 679                                          msginfo->folder,
 680                                          msginfo->msgnum);
 681         if (filename == NULL)
 682                 return -1;
 683
 684         num = folder->add_msg(folder, dest, filename, FALSE);
 685
 686         destdir = folder_item_get_path(dest);
 687
 688         if (fp) {
 689                 MsgInfo newmsginfo;
 690
 691                 newmsginfo.msgnum = dest->last_num;
 692                 newmsginfo.flags = msginfo->flags;
 693                 if (dest->stype == F_OUTBOX ||
 694                     dest->stype == F_QUEUE  ||
 695                     dest->stype == F_DRAFT  ||
 696                     dest->stype == F_TRASH)
 697                         MSG_UNSET_FLAGS(newmsginfo.flags,
 698                                         MSG_NEW|MSG_UNREAD|MSG_DELETED);
 699
 700                 procmsg_write_flags(&newmsginfo, fp);
 701                 fclose(fp);
 702         }
 703
 704         return num;
 705 }
 706 */
 707
 708 gint mh_copy_msgs_with_dest(Folder *folder, FolderItem *dest, GSList *msglist)
 709 {
 710         gchar *srcfile;
 711         gchar *destfile;
 712         GSList *cur;
 713         MsgInfo *msginfo;
 714
 715         g_return_val_if_fail(dest != NULL, -1);
 716         g_return_val_if_fail(msglist != NULL, -1);
 717
 718         if (dest->last_num < 0) {
 719                 mh_get_last_num(folder, dest);
 720                 if (dest->last_num < 0) return -1;
 721         }
 722
 723         for (cur = msglist; cur != NULL; cur = cur->next) {
 724                 msginfo = (MsgInfo *)cur->data;
 725
 726                 if (msginfo->folder == dest) {
 727                         g_warning(_("the src folder is identical to the dest.\n"));
 728                         continue;
 729                 }
 730                 debug_print("Copying message %s%c%d to %s ...\n",
 731                             msginfo->folder->path, G_DIR_SEPARATOR,
 732                             msginfo->msgnum, dest->path);
 733
 734                 destfile = mh_get_new_msg_filename(dest);
 735                 if (!destfile) break;
 736                 srcfile = procmsg_get_message_file(msginfo);
 737
 738                 if (copy_file(srcfile, destfile, TRUE) < 0) {
 739                         FILE_OP_ERROR(srcfile, "copy");
 740                         g_free(srcfile);
 741                         g_free(destfile);
 742                         break;
 743                 }
 744
 745                 g_free(srcfile);
 746                 g_free(destfile);
 747                 dest->last_num++;
 748         }
 749
 750         return dest->last_num;
 751 }
 752
 753 gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 754 {
 755         gchar *file;
 756
 757         g_return_val_if_fail(item != NULL, -1);
 758
 759         file = mh_fetch_msg(folder, item, num);
 760         g_return_val_if_fail(file != NULL, -1);
 761
 762         if (unlink(file) < 0) {
 763                 FILE_OP_ERROR(file, "unlink");
 764                 g_free(file);
 765                 return -1;
 766         }
 767
 768         g_free(file);
 769         return 0;
 770 }
 771
 772 gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 773 {
 774         gchar *path;
 775         gint val;
 776
 777         g_return_val_if_fail(item != NULL, -1);
 778
 779         path = folder_item_get_path(item);
 780         g_return_val_if_fail(path != NULL, -1);
 781         val = remove_all_numbered_files(path);
 782         g_free(path);
 783
 784         return val;
 785 }
 786
 787 gboolean mh_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 788 {
 789         struct stat s;
 790
 791         if (stat(itos(msginfo->msgnum), &s) < 0 ||
 792             msginfo->size  != s.st_size ||
 793             msginfo->mtime != s.st_mtime)
 794                 return TRUE;
 795
 796         return FALSE;
 797 }
 798
 799 gint mh_scan_folder(Folder *folder, FolderItem *item)
 800 {
 801         gchar *path;
 802         DIR *dp;
 803         struct dirent *d;
 804         struct stat s;
 805         gint max = 0;
 806         gint num;
 807
 808         g_return_val_if_fail(item != NULL, -1);
 809
 810         debug_print("mh_scan_folder(): Scanning %s ...\n", item->path);
 811
 812         path = folder_item_get_path(item);
 813         g_return_val_if_fail(path != NULL, -1);
 814         if (change_dir(path) < 0) {
 815                 g_free(path);
 816                 return -1;
 817         }
 818         g_free(path);
 819
 820         if ((dp = opendir(".")) == NULL) {
 821                 FILE_OP_ERROR(item->path, "opendir");
 822                 return -1;
 823         }
 824
 825         if (folder->ui_func)
 826                 folder->ui_func(folder, item, folder->ui_func_data);
 827
 828         while ((d = readdir(dp)) != NULL) {
 829                 if ((num = to_number(d->d_name)) >= 0 &&
 830                     stat(d->d_name, &s) == 0 &&
 831                     S_ISREG(s.st_mode)) {
 832 /*
 833                         n_msg++;
 834 */
 835                         if (max < num)
 836                                 max = num;
 837                 }
 838         }
 839         closedir(dp);
 840
 841 /*
 842         if (n_msg == 0)
 843                 item->new = item->unread = item->total = 0;
 844         else {
 845                 gint new, unread, total, min, max;
 846
 847                 procmsg_get_mark_sum(".", &new, &unread, &total, &min, &max, 0);
 848                 if (n_msg > total) {
 849                         new += n_msg - total;
 850                         unread += n_msg - total;
 851                 }
 852                 item->new = new;
 853                 item->unread = unread;
 854                 item->total = n_msg;
 855         }
 856 */
 857         debug_print("Last number in dir %s = %d\n", item->path, max);
 858         item->last_num = max;
 859
 860         return 0;
 861 }
 862
 863 void mh_scan_tree(Folder *folder)
 864 {
 865         FolderItem *item;
 866         gchar *rootpath;
 867
 868         g_return_if_fail(folder != NULL);
 869
 870         item = folder_item_new(folder, folder->name, NULL);
 871         item->folder = folder;
 872         folder->node = g_node_new(item);
 873
 874         rootpath = folder_item_get_path(item);
 875         if (change_dir(rootpath) < 0) {
 876                 g_free(rootpath);
 877                 return;
 878         }
 879         g_free(rootpath);
 880
 881         mh_create_tree(folder);
 882         mh_scan_tree_recursive(item);
 883 }
 884
 885 #define MAKE_DIR_IF_NOT_EXIST(dir) \
 886 { \
 887         if (!is_dir_exist(dir)) { \
 888                 if (is_file_exist(dir)) { \
 889                         g_warning(_("File `%s' already exists.\n" \
 890                                     "Can't create folder."), dir); \
 891                         return -1; \
 892                 } \
 893                 if (make_dir(dir) < 0) \
 894                         return -1; \
 895         } \
 896 }
 897
 898 gint mh_create_tree(Folder *folder)
 899 {
 900         gchar *rootpath;
 901
 902         g_return_val_if_fail(folder != NULL, -1);
 903
 904         CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
 905         rootpath = LOCAL_FOLDER(folder)->rootpath;
 906         MAKE_DIR_IF_NOT_EXIST(rootpath);
 907         CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
 908         MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
 909         MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
 910         MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
 911         MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
 912         MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
 913
 914         return 0;
 915 }
 916
 917 #undef MAKE_DIR_IF_NOT_EXIST
 918
 919 FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
 920                              const gchar *name)
 921 {
 922         gchar *path;
 923         gchar *fullpath;
 924         FolderItem *new_item;
 925
 926         g_return_val_if_fail(folder != NULL, NULL);
 927         g_return_val_if_fail(parent != NULL, NULL);
 928         g_return_val_if_fail(name != NULL, NULL);
 929
 930         path = folder_item_get_path(parent);
 931         if (!is_dir_exist(path))
 932                 if (make_dir_hier(path) != 0)
 933                         return NULL;
 934
 935         fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, name, NULL);
 936         g_free(path);
 937
 938         if (make_dir(fullpath) < 0) {
 939                 g_free(fullpath);
 940                 return NULL;
 941         }
 942
 943         g_free(fullpath);
 944
 945         if (parent->path)
 946                 path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
 947                                    NULL);
 948         else
 949                 path = g_strdup(name);
 950         new_item = folder_item_new(folder, name, path);
 951         folder_item_append(parent, new_item);
 952         g_free(path);
 953
 954         return new_item;
 955 }
 956
 957 gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
 958 {
 959         gchar *oldpath;
 960         gchar *dirname;
 961         gchar *newpath;
 962         GNode *node;
 963         gchar *paths[2];
 964
 965         g_return_val_if_fail(folder != NULL, -1);
 966         g_return_val_if_fail(item != NULL, -1);
 967         g_return_val_if_fail(item->path != NULL, -1);
 968         g_return_val_if_fail(name != NULL, -1);
 969
 970         oldpath = folder_item_get_path(item);
 971         if (!is_dir_exist(oldpath))
 972                 make_dir_hier(oldpath);
 973
 974         dirname = g_dirname(oldpath);
 975         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 976         g_free(dirname);
 977
 978         if (rename(oldpath, newpath) < 0) {
 979                 FILE_OP_ERROR(oldpath, "rename");
 980                 g_free(oldpath);
 981                 g_free(newpath);
 982                 return -1;
 983         }
 984
 985         g_free(oldpath);
 986         g_free(newpath);
 987
 988         if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
 989                 dirname = g_dirname(item->path);
 990                 newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 991                 g_free(dirname);
 992         } else
 993                 newpath = g_strdup(name);
 994
 995         g_free(item->name);
 996         item->name = g_strdup(name);
 997
 998         node = g_node_find(item->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL,
 999                            item);
1000         paths[0] = g_strdup(item->path);
1001         paths[1] = newpath;
1002         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1003                         mh_rename_folder_func, paths);
1004
1005         g_free(paths[0]);
1006         g_free(paths[1]);
1007         return 0;
1008 }
1009
1010 gint mh_remove_folder(Folder *folder, FolderItem *item)
1011 {
1012         gchar *path;
1013
1014         g_return_val_if_fail(folder != NULL, -1);
1015         g_return_val_if_fail(item != NULL, -1);
1016         g_return_val_if_fail(item->path != NULL, -1);
1017
1018         path = folder_item_get_path(item);
1019         if (remove_dir_recursive(path) < 0) {
1020                 g_warning("can't remove directory `%s'\n", path);
1021                 g_free(path);
1022                 return -1;
1023         }
1024
1025         g_free(path);
1026         folder_item_remove(item);
1027         return 0;
1028 }
1029
1030
1031 static GSList *mh_get_uncached_msgs(GHashTable *msg_table, FolderItem *item)
1032 {
1033         gchar *path;
1034         DIR *dp;
1035         struct dirent *d;
1036         struct stat s;
1037         GSList *newlist = NULL;
1038         GSList *last = NULL;
1039         MsgInfo *msginfo;
1040         gint n_newmsg = 0;
1041         gint num;
1042
1043         g_return_val_if_fail(item != NULL, NULL);
1044
1045         path = folder_item_get_path(item);
1046         g_return_val_if_fail(path != NULL, NULL);
1047         if (change_dir(path) < 0) {
1048                 g_free(path);
1049                 return NULL;
1050         }
1051         g_free(path);
1052
1053         if ((dp = opendir(".")) == NULL) {
1054                 FILE_OP_ERROR(item->path, "opendir");
1055                 return NULL;
1056         }
1057
1058         debug_print("\tSearching uncached messages... ");
1059
1060         if (msg_table) {
1061                 while ((d = readdir(dp)) != NULL) {
1062                         if ((num = to_number(d->d_name)) < 0) continue;
1063                         if (stat(d->d_name, &s) < 0) {
1064                                 FILE_OP_ERROR(d->d_name, "stat");
1065                                 continue;
1066                         }
1067                         if (!S_ISREG(s.st_mode)) continue;
1068
1069                         msginfo = g_hash_table_lookup
1070                                 (msg_table, GUINT_TO_POINTER(num));
1071
1072                         if (!msginfo) {
1073                                 /* not found in the cache (uncached message) */
1074                                 msginfo = mh_parse_msg(d->d_name, item);
1075                                 if (!msginfo) continue;
1076
1077                                 if (!newlist)
1078                                         last = newlist =
1079                                                 g_slist_append(NULL, msginfo);
1080                                 else {
1081                                         last = g_slist_append(last, msginfo);
1082                                         last = last->next;
1083                                 }
1084                                 n_newmsg++;
1085                         }
1086                 }
1087         } else {
1088                 /* discard all previous cache */
1089                 while ((d = readdir(dp)) != NULL) {
1090                         if (to_number(d->d_name) < 0) continue;
1091                         if (stat(d->d_name, &s) < 0) {
1092                                 FILE_OP_ERROR(d->d_name, "stat");
1093                                 continue;
1094                         }
1095                         if (!S_ISREG(s.st_mode)) continue;
1096
1097                         msginfo = mh_parse_msg(d->d_name, item);
1098                         if (!msginfo) continue;
1099
1100                         if (!newlist)
1101                                 last = newlist = g_slist_append(NULL, msginfo);
1102                         else {
1103                                 last = g_slist_append(last, msginfo);
1104                                 last = last->next;
1105                         }
1106                         n_newmsg++;
1107                 }
1108         }
1109
1110         closedir(dp);
1111
1112         if (n_newmsg)
1113                 debug_print("%d uncached message(s) found.\n", n_newmsg);
1114         else
1115                 debug_print("done.\n");
1116
1117         /* sort new messages in numerical order */
1118         if (newlist) {
1119                 debug_print("\tSorting uncached messages in numerical order... ");
1120                 newlist = g_slist_sort
1121                         (newlist, (GCompareFunc)procmsg_cmp_msgnum_for_sort);
1122                 debug_print("done.\n");
1123         }
1124
1125         return newlist;
1126 }
1127
1128 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
1129 {
1130         struct stat s;
1131         MsgInfo *msginfo;
1132         MsgFlags flags;
1133
1134         flags.perm_flags = MSG_NEW|MSG_UNREAD;
1135         flags.tmp_flags = 0;
1136
1137         g_return_val_if_fail(item != NULL, NULL);
1138         g_return_val_if_fail(file != NULL, NULL);
1139
1140         if (item->stype == F_QUEUE) {
1141                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
1142         } else if (item->stype == F_DRAFT) {
1143                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
1144         }
1145
1146         msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
1147         if (!msginfo) return NULL;
1148
1149         msginfo->msgnum = atoi(file);
1150         msginfo->folder = item;
1151
1152         if (stat(file, &s) < 0) {
1153                 FILE_OP_ERROR(file, "stat");
1154                 msginfo->size = 0;
1155                 msginfo->mtime = 0;
1156         } else {
1157                 msginfo->size = s.st_size;
1158                 msginfo->mtime = s.st_mtime;
1159         }
1160
1161         return msginfo;
1162 }
1163
1164 #if 0
1165 static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
1166 {
1167         gchar *entry;
1168         gboolean result;
1169
1170         entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
1171         result = is_dir_exist(entry);
1172         g_free(entry);
1173
1174         return result;
1175 }
1176
1177 /*
1178  * check whether PATH is a Maildir style mailbox.
1179  * This is the case if the 3 subdir: new, cur, tmp are existing.
1180  * This functon assumes that entry is an directory
1181  */
1182 static gboolean mh_is_maildir(const gchar *path)
1183 {
1184         return mh_is_maildir_one(path, "new") &&
1185                mh_is_maildir_one(path, "cur") &&
1186                mh_is_maildir_one(path, "tmp");
1187 }
1188 #endif
1189
1190 static void mh_scan_tree_recursive(FolderItem *item)
1191 {
1192         DIR *dp;
1193         struct dirent *d;
1194         struct stat s;
1195         gchar *entry;
1196         gint n_msg = 0;
1197
1198         g_return_if_fail(item != NULL);
1199         g_return_if_fail(item->folder != NULL);
1200
1201         dp = opendir(item->path ? item->path : ".");
1202         if (!dp) {
1203                 FILE_OP_ERROR(item->path ? item->path : ".", "opendir");
1204                 return;
1205         }
1206
1207         debug_print("scanning %s ...\n",
1208                     item->path ? item->path
1209                     : LOCAL_FOLDER(item->folder)->rootpath);
1210         if (item->folder->ui_func)
1211                 item->folder->ui_func(item->folder, item,
1212                                       item->folder->ui_func_data);
1213
1214         while ((d = readdir(dp)) != NULL) {
1215                 if (d->d_name[0] == '.') continue;
1216
1217                 if (item->path)
1218                         entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
1219                                             d->d_name, NULL);
1220                 else
1221                         entry = g_strdup(d->d_name);
1222
1223                 if (stat(entry, &s) < 0) {
1224                         FILE_OP_ERROR(entry, "stat");
1225                         g_free(entry);
1226                         continue;
1227                 }
1228
1229                 if (S_ISDIR(s.st_mode)) {
1230                         FolderItem *new_item;
1231
1232 #if 0
1233                         if (mh_is_maildir(entry)) {
1234                                 g_free(entry);
1235                                 continue;
1236                         }
1237 #endif
1238
1239                         new_item = folder_item_new(item->folder, d->d_name, entry);
1240                         folder_item_append(item, new_item);
1241                         if (!item->path) {
1242                                 if (!strcmp(d->d_name, INBOX_DIR)) {
1243                                         new_item->stype = F_INBOX;
1244                                         item->folder->inbox = new_item;
1245                                 } else if (!strcmp(d->d_name, OUTBOX_DIR)) {
1246                                         new_item->stype = F_OUTBOX;
1247                                         item->folder->outbox = new_item;
1248                                 } else if (!strcmp(d->d_name, DRAFT_DIR)) {
1249                                         new_item->stype = F_DRAFT;
1250                                         item->folder->draft = new_item;
1251                                 } else if (!strcmp(d->d_name, QUEUE_DIR)) {
1252                                         new_item->stype = F_QUEUE;
1253                                         item->folder->queue = new_item;
1254                                 } else if (!strcmp(d->d_name, TRASH_DIR)) {
1255                                         new_item->stype = F_TRASH;
1256                                         item->folder->trash = new_item;
1257                                 }
1258                         }
1259                         mh_scan_tree_recursive(new_item);
1260                 } else if (to_number(d->d_name) != -1) n_msg++;
1261
1262                 g_free(entry);
1263         }
1264
1265         closedir(dp);
1266
1267 /*
1268         if (item->path) {
1269                 gint new, unread, total, min, max;
1270
1271                 procmsg_get_mark_sum(item->path, &new, &unread, &total,
1272                                      &min, &max, 0);
1273                 if (n_msg > total) {
1274                         new += n_msg - total;
1275                         unread += n_msg - total;
1276                 }
1277                 item->new = new;
1278                 item->unread = unread;
1279                 item->total = n_msg;
1280         }
1281 */
1282 }
1283
1284 static gboolean mh_rename_folder_func(GNode *node, gpointer data)
1285 {
1286         FolderItem *item = node->data;
1287         gchar **paths = data;
1288         const gchar *oldpath = paths[0];
1289         const gchar *newpath = paths[1];
1290         gchar *base;
1291         gchar *new_itempath;
1292         gint oldpathlen;
1293
1294         oldpathlen = strlen(oldpath);
1295         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
1296                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
1297                 return TRUE;
1298         }
1299
1300         base = item->path + oldpathlen;
1301         while (*base == G_DIR_SEPARATOR) base++;
1302         if (*base == '\0')
1303                 new_itempath = g_strdup(newpath);
1304         else
1305                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
1306                                            NULL);
1307         g_free(item->path);
1308         item->path = new_itempath;
1309
1310         return FALSE;
1311 }