src/imap.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 <stdio.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <dirent.h>
  31 #include <unistd.h>
  32 #include <ctype.h>
  33 #include <time.h>
  34 #if HAVE_LIBJCONV
  35 #  include <jconv.h>
  36 #endif
  37
  38 #include "intl.h"
  39 #include "imap.h"
  40 #include "socket.h"
  41 #include "ssl.h"
  42 #include "recv.h"
  43 #include "procmsg.h"
  44 #include "procheader.h"
  45 #include "folder.h"
  46 #include "statusbar.h"
  47 #include "prefs_account.h"
  48 #include "codeconv.h"
  49 #include "utils.h"
  50 #include "inputdialog.h"
  51
  52 #define IMAP4_PORT      143
  53 #if USE_SSL
  54 #define IMAPS_PORT      993
  55 #endif
  56
  57 #define QUOTE_IF_REQUIRED(out, str)                             \
  58 {                                                               \
  59         if (*str != '"' && strpbrk(str, " \t(){}%*") != NULL) { \
  60                 gchar *__tmp;                                   \
  61                 gint len;                                       \
  62                                                                 \
  63                 len = strlen(str) + 3;                          \
  64                 Xalloca(__tmp, len, return IMAP_ERROR);         \
  65                 g_snprintf(__tmp, len, "\"%s\"", str);          \
  66                 out = __tmp;                                    \
  67         } else {                                                \
  68                 Xstrdup_a(out, str, return IMAP_ERROR);         \
  69         }                                                       \
  70 }
  71
  72 static GList *session_list = NULL;
  73
  74 static gint imap_cmd_count = 0;
  75
  76 static void imap_folder_init            (Folder         *folder,
  77                                          const gchar    *name,
  78                                          const gchar    *path);
  79
  80 static IMAPSession *imap_session_get    (Folder         *folder);
  81
  82 static gint imap_scan_tree_recursive    (IMAPSession    *session,
  83                                          FolderItem     *item);
  84 static GSList *imap_parse_list          (IMAPSession    *session,
  85                                          const gchar    *real_path);
  86
  87 static void imap_create_missing_folders (Folder                 *folder);
  88 static FolderItem *imap_create_special_folder
  89                                         (Folder                 *folder,
  90                                          SpecialFolderItemType   stype,
  91                                          const gchar            *name);
  92
  93 static gint imap_do_copy                (Folder         *folder,
  94                                          FolderItem     *dest,
  95                                          MsgInfo        *msginfo,
  96                                          gboolean        remove_source);
  97 static gint imap_do_copy_msgs_with_dest (Folder         *folder,
  98                                          FolderItem     *dest,
  99                                          GSList         *msglist,
 100                                          gboolean        remove_source);
 101
 102 static GSList *imap_get_uncached_messages       (IMAPSession    *session,
 103                                                  FolderItem     *item,
 104                                                  guint32         first_uid,
 105                                                  guint32         last_uid);
 106 static GSList *imap_delete_cached_messages      (GSList         *mlist,
 107                                                  FolderItem     *item,
 108                                                  guint32         first_uid,
 109                                                  guint32         last_uid);
 110 static void imap_delete_all_cached_messages     (FolderItem     *item);
 111
 112 #if USE_SSL
 113 static SockInfo *imap_open              (const gchar    *server,
 114                                          gushort         port,
 115                                          SSLType         ssl_type);
 116 #else
 117 static SockInfo *imap_open              (const gchar    *server,
 118                                          gushort         port);
 119 #endif
 120
 121 #if USE_SSL
 122 static SockInfo *imap_open_tunnel(const gchar *server,
 123                                   const gchar *tunnelcmd,
 124                                   SSLType ssl_type);
 125 #else
 126 static SockInfo *imap_open_tunnel(const gchar *server,
 127                                   const gchar *tunnelcmd);
 128 #endif
 129
 130 #if USE_SSL
 131 static SockInfo *imap_init_sock(SockInfo *sock, SSLType  ssl_type);
 132 #else
 133 static SockInfo *imap_init_sock(SockInfo *sock);
 134 #endif
 135
 136 static gint imap_set_message_flags      (IMAPSession    *session,
 137                                          guint32         first_uid,
 138                                          guint32         last_uid,
 139                                          IMAPFlags       flag,
 140                                          gboolean        is_set);
 141 static gint imap_select                 (IMAPSession    *session,
 142                                          IMAPFolder     *folder,
 143                                          const gchar    *path,
 144                                          gint           *exists,
 145                                          gint           *recent,
 146                                          gint           *unseen,
 147                                          guint32        *uid_validity);
 148 static gint imap_get_uid                (IMAPSession    *session,
 149                                          gint            msgnum,
 150                                          guint32        *uid);
 151 static gint imap_status                 (IMAPSession    *session,
 152                                          IMAPFolder     *folder,
 153                                          const gchar    *path,
 154                                          gint           *messages,
 155                                          gint           *recent,
 156                                          guint32        *uid_next,
 157                                          guint32        *uid_validity,
 158                                          gint           *unseen);
 159
 160 static void imap_parse_namespace                (IMAPSession    *session,
 161                                                  IMAPFolder     *folder);
 162 static IMAPNameSpace *imap_find_namespace       (IMAPFolder     *folder,
 163                                                  const gchar    *path);
 164 static gchar imap_get_path_separator            (IMAPFolder     *folder,
 165                                                  const gchar    *path);
 166 static gchar *imap_get_real_path                (IMAPFolder     *folder,
 167                                                  const gchar    *path);
 168
 169 static gchar *imap_parse_atom           (SockInfo       *sock,
 170                                          gchar          *src,
 171                                          gchar          *dest,
 172                                          gint            dest_len,
 173                                          GString        *str);
 174 static MsgFlags imap_parse_flags        (const gchar    *flag_str);
 175 static MsgInfo *imap_parse_envelope     (SockInfo       *sock,
 176                                          FolderItem     *item,
 177                                          GString        *line_str);
 178 static gint imap_greeting               (SockInfo *sock,
 179                                          gboolean *is_preauth);
 180
 181 /* low-level IMAP4rev1 commands */
 182 static gint imap_cmd_login      (SockInfo       *sock,
 183                                  const gchar    *user,
 184                                  const gchar    *pass);
 185 static gint imap_cmd_logout     (SockInfo       *sock);
 186 static gint imap_cmd_noop       (SockInfo       *sock);
 187 static gint imap_cmd_starttls   (SockInfo       *sock);
 188 static gint imap_cmd_namespace  (SockInfo       *sock,
 189                                  gchar         **ns_str);
 190 static gint imap_cmd_list       (SockInfo       *sock,
 191                                  const gchar    *ref,
 192                                  const gchar    *mailbox,
 193                                  GPtrArray      *argbuf);
 194 static gint imap_cmd_do_select  (SockInfo       *sock,
 195                                  const gchar    *folder,
 196                                  gboolean        examine,
 197                                  gint           *exists,
 198                                  gint           *recent,
 199                                  gint           *unseen,
 200                                  guint32        *uid_validity);
 201 static gint imap_cmd_select     (SockInfo       *sock,
 202                                  const gchar    *folder,
 203                                  gint           *exists,
 204                                  gint           *recent,
 205                                  gint           *unseen,
 206                                  guint32        *uid_validity);
 207 static gint imap_cmd_examine    (SockInfo       *sock,
 208                                  const gchar    *folder,
 209                                  gint           *exists,
 210                                  gint           *recent,
 211                                  gint           *unseen,
 212                                  guint32        *uid_validity);
 213 static gint imap_cmd_create     (SockInfo       *sock,
 214                                  const gchar    *folder);
 215 static gint imap_cmd_rename     (SockInfo       *sock,
 216                                  const gchar    *oldfolder,
 217                                  const gchar    *newfolder);
 218 static gint imap_cmd_delete     (SockInfo       *sock,
 219                                  const gchar    *folder);
 220 static gint imap_cmd_envelope   (SockInfo       *sock,
 221                                  guint32         first_uid,
 222                                  guint32         last_uid);
 223 #if 0
 224 static gint imap_cmd_search     (SockInfo       *sock,
 225                                  GSList         *numlist);
 226 #endif
 227 static gint imap_cmd_fetch      (SockInfo       *sock,
 228                                  guint32         uid,
 229                                  const gchar    *filename);
 230 static gint imap_cmd_append     (SockInfo       *sock,
 231                                  const gchar    *destfolder,
 232                                  const gchar    *file);
 233 static gint imap_cmd_copy       (SockInfo       *sock,
 234                                  guint32         uid,
 235                                  const gchar    *destfolder);
 236 static gint imap_cmd_store      (SockInfo       *sock,
 237                                  guint32         first_uid,
 238                                  guint32         last_uid,
 239                                  gchar          *sub_cmd);
 240 static gint imap_cmd_expunge    (SockInfo       *sock);
 241
 242 static gint imap_cmd_ok         (SockInfo       *sock,
 243                                  GPtrArray      *argbuf);
 244 static void imap_cmd_gen_send   (SockInfo       *sock,
 245                                  const gchar    *format, ...);
 246 static gint imap_cmd_gen_recv   (SockInfo       *sock,
 247                                  gchar          *buf,
 248                                  gint            size);
 249
 250 /* misc utility functions */
 251 static gchar *strchr_cpy                        (const gchar    *src,
 252                                                  gchar           ch,
 253                                                  gchar          *dest,
 254                                                  gint            len);
 255 static gchar *get_quoted                        (const gchar    *src,
 256                                                  gchar           ch,
 257                                                  gchar          *dest,
 258                                                  gint            len);
 259 static gchar *search_array_contain_str          (GPtrArray      *array,
 260                                                  gchar          *str);
 261 static gchar *search_array_str                  (GPtrArray      *array,
 262                                                  gchar          *str);
 263 static gchar *search_array_starts               (GPtrArray *array,
 264                                                  const gchar *str);
 265 static void imap_path_separator_subst           (gchar          *str,
 266                                                  gchar           separator);
 267
 268 static gchar *imap_modified_utf7_to_locale      (const gchar    *mutf7_str);
 269 static gchar *imap_locale_to_modified_utf7      (const gchar    *from);
 270
 271 static gboolean imap_rename_folder_func         (GNode          *node,
 272                                                  gpointer        data);
 273
 274
 275 Folder *imap_folder_new(const gchar *name, const gchar *path)
 276 {
 277         Folder *folder;
 278
 279         folder = (Folder *)g_new0(IMAPFolder, 1);
 280         imap_folder_init(folder, name, path);
 281
 282         return folder;
 283 }
 284
 285 void imap_folder_destroy(IMAPFolder *folder)
 286 {
 287         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 288 }
 289
 290 static void imap_folder_init(Folder *folder, const gchar *name,
 291                              const gchar *path)
 292 {
 293         folder_remote_folder_init(folder, name, path);
 294
 295         folder->type = F_IMAP;
 296
 297         folder->get_msg_list        = imap_get_msg_list;
 298         folder->fetch_msg           = imap_fetch_msg;
 299         folder->add_msg             = imap_add_msg;
 300         folder->move_msg            = imap_move_msg;
 301         folder->move_msgs_with_dest = imap_move_msgs_with_dest;
 302         folder->copy_msg            = imap_copy_msg;
 303         folder->copy_msgs_with_dest = imap_copy_msgs_with_dest;
 304         folder->remove_msg          = imap_remove_msg;
 305         folder->remove_all_msg      = imap_remove_all_msg;
 306         folder->is_msg_changed      = imap_is_msg_changed;
 307         folder->scan                = imap_scan_folder;
 308         folder->scan_tree           = imap_scan_tree;
 309         folder->create_tree         = imap_create_tree;
 310         folder->create_folder       = imap_create_folder;
 311         folder->rename_folder       = imap_rename_folder;
 312         folder->remove_folder       = imap_remove_folder;
 313 }
 314
 315 static IMAPSession *imap_session_get(Folder *folder)
 316 {
 317         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 318         gushort port;
 319
 320         g_return_val_if_fail(folder != NULL, NULL);
 321         g_return_val_if_fail(folder->type == F_IMAP, NULL);
 322         g_return_val_if_fail(folder->account != NULL, NULL);
 323
 324 #if USE_SSL
 325         port = folder->account->set_imapport ? folder->account->imapport
 326                 : folder->account->ssl_imap == SSL_TUNNEL
 327                 ? IMAPS_PORT : IMAP4_PORT;
 328 #else
 329         port = folder->account->set_imapport ? folder->account->imapport
 330                 : IMAP4_PORT;
 331 #endif
 332
 333         if (!rfolder->session) {
 334                 rfolder->session =
 335                         imap_session_new(folder->account);
 336                 if (rfolder->session) {
 337                         imap_parse_namespace(IMAP_SESSION(rfolder->session),
 338                                              IMAP_FOLDER(folder));
 339                         rfolder->session->last_access_time = time(NULL);
 340                 }
 341                 statusbar_pop_all();
 342                 return IMAP_SESSION(rfolder->session);
 343         }
 344
 345         /* I think the point of this code is to avoid sending a
 346          * keepalive if we've used the session recently and therefore
 347          * think it's still alive.  Unfortunately, most of the code
 348          * does not yet check for errors on the socket, and so if the
 349          * connection drops we don't notice until the timeout expires.
 350          * A better solution than sending a NOOP every time would be
 351          * for every command to be prepared to retry until it is
 352          * successfully sent. -- mbp */
 353         if (time(NULL) - rfolder->session->last_access_time < SESSION_TIMEOUT) {
 354                 rfolder->session->last_access_time = time(NULL);
 355                 statusbar_pop_all();
 356                 return IMAP_SESSION(rfolder->session);
 357         }
 358
 359         if (imap_cmd_noop(rfolder->session->sock) != IMAP_SUCCESS) {
 360                 log_warning(_("IMAP4 connection to %s:%d has been"
 361                               " disconnected. Reconnecting...\n"),
 362                             folder->account->recv_server, port);
 363                 session_destroy(rfolder->session);
 364                 rfolder->session =
 365                         imap_session_new(folder->account);
 366                 if (rfolder->session)
 367                         imap_parse_namespace(IMAP_SESSION(rfolder->session),
 368                                              IMAP_FOLDER(folder));
 369         }
 370
 371         if (rfolder->session)
 372                 rfolder->session->last_access_time = time(NULL);
 373         statusbar_pop_all();
 374         return IMAP_SESSION(rfolder->session);
 375 }
 376
 377 Session *imap_session_new(const PrefsAccount *account)
 378 {
 379         IMAPSession *session;
 380         SockInfo *imap_sock;
 381         gushort port;
 382         gchar *pass;
 383         gboolean is_preauth;
 384
 385 #ifdef USE_SSL
 386         /* FIXME: IMAP over SSL only... */
 387         SSLType ssl_type;
 388
 389         port = account->set_imapport ? account->imapport
 390                 : account->ssl_imap ? IMAPS_PORT : IMAP4_PORT;
 391         ssl_type = account->ssl_imap ? TRUE : FALSE;
 392 #else
 393         port = account->set_imapport ? account->imapport
 394                 : IMAP4_PORT;
 395 #endif
 396
 397         if (account->set_tunnelcmd) {
 398                 log_message(_("creating tunneled IMAP4 connection\n"));
 399 #if USE_SSL
 400                 if ((imap_sock = imap_open_tunnel(account->recv_server,
 401                                                   account->tunnelcmd,
 402                                                   ssl_type)) == NULL)
 403 #else
 404                 if ((imap_sock = imap_open_tunnel(account->recv_server,
 405                                                   account->tunnelcmd)) == NULL)
 406 #endif
 407                         return NULL;
 408         } else {
 409                 g_return_val_if_fail(account->recv_server != NULL, NULL);
 410
 411                 log_message(_("creating IMAP4 connection to %s:%d ...\n"),
 412                             account->recv_server, port);
 413
 414 #if USE_SSL
 415                 if ((imap_sock = imap_open(account->recv_server, port,
 416                                            ssl_type)) == NULL)
 417 #else
 418                 if ((imap_sock = imap_open(account->recv_server, port)) == NULL)
 419 #endif
 420                         return NULL;
 421         }
 422
 423         /* Only need to log in if the connection was not PREAUTH */
 424         imap_greeting(imap_sock, &is_preauth);
 425         log_message("IMAP connection is %s-authenticated\n",
 426                     (is_preauth) ? "pre" : "un");
 427         if (!is_preauth) {
 428                 g_return_val_if_fail(account->userid != NULL, NULL);
 429
 430                 pass = account->passwd;
 431                 if (!pass) {
 432                         gchar *tmp_pass;
 433                         tmp_pass = input_dialog_query_password(account->recv_server, account->userid);
 434                         if (!tmp_pass)
 435                                 return NULL;
 436                         Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return NULL;});
 437                         g_free(tmp_pass);
 438                 }
 439
 440                 if (imap_cmd_login(imap_sock, account->userid, pass) != IMAP_SUCCESS) {
 441                         imap_cmd_logout(imap_sock);
 442                         sock_close(imap_sock);
 443                         return NULL;
 444                 }
 445         }
 446
 447         session = g_new(IMAPSession, 1);
 448         SESSION(session)->type             = SESSION_IMAP;
 449         SESSION(session)->server           = g_strdup(account->recv_server);
 450         SESSION(session)->sock             = imap_sock;
 451         SESSION(session)->connected        = TRUE;
 452         SESSION(session)->phase            = SESSION_READY;
 453         SESSION(session)->last_access_time = time(NULL);
 454         SESSION(session)->data             = NULL;
 455         session->mbox = NULL;
 456
 457         session_list = g_list_append(session_list, session);
 458
 459         return SESSION(session);
 460 }
 461
 462 void imap_session_destroy(IMAPSession *session)
 463 {
 464         sock_close(SESSION(session)->sock);
 465         SESSION(session)->sock = NULL;
 466
 467         g_free(session->mbox);
 468
 469         session_list = g_list_remove(session_list, session);
 470 }
 471
 472 void imap_session_destroy_all(void)
 473 {
 474         while (session_list != NULL) {
 475                 IMAPSession *session = (IMAPSession *)session_list->data;
 476
 477                 imap_cmd_logout(SESSION(session)->sock);
 478                 session_destroy(SESSION(session));
 479         }
 480 }
 481
 482 #define THROW goto catch
 483
 484 GSList *imap_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 485 {
 486         GSList *mlist = NULL;
 487         IMAPSession *session;
 488         gint ok, exists = 0, recent = 0, unseen = 0;
 489         guint32 uid_validity = 0;
 490         guint32 first_uid = 0, last_uid = 0, begin;
 491
 492         g_return_val_if_fail(folder != NULL, NULL);
 493         g_return_val_if_fail(item != NULL, NULL);
 494         g_return_val_if_fail(folder->type == F_IMAP, NULL);
 495         g_return_val_if_fail(folder->account != NULL, NULL);
 496
 497         session = imap_session_get(folder);
 498
 499         if (!session) {
 500                 mlist = procmsg_read_cache(item, FALSE);
 501                 item->last_num = procmsg_get_last_num_in_cache(mlist);
 502                 procmsg_set_flags(mlist, item);
 503                 statusbar_pop_all();
 504                 return mlist;
 505         }
 506
 507         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 508                          &exists, &recent, &unseen, &uid_validity);
 509         if (ok != IMAP_SUCCESS) THROW;
 510         if (exists > 0) {
 511                 ok = imap_get_uid(session, 1, &first_uid);
 512                 if (ok != IMAP_SUCCESS) THROW;
 513                 if (1 != exists) {
 514                         ok = imap_get_uid(session, exists, &last_uid);
 515                         if (ok != IMAP_SUCCESS) THROW;
 516                 } else
 517                         last_uid = first_uid;
 518         } else {
 519                 imap_delete_all_cached_messages(item);
 520                 statusbar_pop_all();
 521                 return NULL;
 522         }
 523
 524         if (use_cache) {
 525                 guint32 cache_last;
 526
 527                 mlist = procmsg_read_cache(item, FALSE);
 528                 procmsg_set_flags(mlist, item);
 529                 cache_last = procmsg_get_last_num_in_cache(mlist);
 530
 531                 /* calculating the range of envelope to get */
 532                 if (item->mtime != uid_validity) {
 533                         /* mailbox is changed (get all) */
 534                         begin = first_uid;
 535                 } else if (last_uid < cache_last) {
 536                         /* mailbox is changed (get all) */
 537                         begin = first_uid;
 538                 } else if (last_uid == cache_last) {
 539                         /* mailbox unchanged (get none)*/
 540                         begin = 0;
 541                 } else {
 542                         begin = cache_last + 1;
 543                 }
 544
 545                 item->mtime = uid_validity;
 546
 547                 if (first_uid > 0 && last_uid > 0) {
 548                         mlist = imap_delete_cached_messages(mlist, item,
 549                                                             0, first_uid - 1);
 550                         mlist = imap_delete_cached_messages(mlist, item,
 551                                                             last_uid + 1,
 552                                                             UINT_MAX);
 553                 }
 554                 if (begin > 0)
 555                         mlist = imap_delete_cached_messages(mlist, item,
 556                                                             begin, UINT_MAX);
 557         } else {
 558                 imap_delete_all_cached_messages(item);
 559                 begin = first_uid;
 560         }
 561
 562         if (begin > 0 && begin <= last_uid) {
 563                 GSList *newlist;
 564                 newlist = imap_get_uncached_messages(session, item,
 565                                                      begin, last_uid);
 566                 mlist = g_slist_concat(mlist, newlist);
 567         }
 568
 569         item->last_num = last_uid;
 570
 571 catch:
 572         statusbar_pop_all();
 573         return mlist;
 574 }
 575
 576 #undef THROW
 577
 578 gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid)
 579 {
 580         gchar *path, *filename;
 581         IMAPSession *session;
 582         gint ok;
 583
 584         g_return_val_if_fail(folder != NULL, NULL);
 585         g_return_val_if_fail(item != NULL, NULL);
 586
 587         path = folder_item_get_path(item);
 588         if (!is_dir_exist(path))
 589                 make_dir_hier(path);
 590         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(uid), NULL);
 591         g_free(path);
 592
 593         if (is_file_exist(filename)) {
 594                 debug_print(_("message %d has been already cached.\n"), uid);
 595                 return filename;
 596         }
 597
 598         session = imap_session_get(folder);
 599         if (!session) {
 600                 g_free(filename);
 601                 return NULL;
 602         }
 603
 604         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 605                          NULL, NULL, NULL, NULL);
 606         statusbar_pop_all();
 607         if (ok != IMAP_SUCCESS) {
 608                 g_warning(_("can't select mailbox %s\n"), item->path);
 609                 g_free(filename);
 610                 return NULL;
 611         }
 612
 613         debug_print(_("getting message %d...\n"), uid);
 614         ok = imap_cmd_fetch(SESSION(session)->sock, (guint32)uid, filename);
 615
 616         statusbar_pop_all();
 617
 618         if (ok != IMAP_SUCCESS) {
 619                 g_warning(_("can't fetch message %d\n"), uid);
 620                 g_free(filename);
 621                 return NULL;
 622         }
 623
 624         return filename;
 625 }
 626
 627 gint imap_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 628                   gboolean remove_source)
 629 {
 630         gchar *destdir;
 631         IMAPSession *session;
 632         gint messages, recent, unseen;
 633         guint32 uid_next, uid_validity;
 634         gint ok;
 635
 636         g_return_val_if_fail(folder != NULL, -1);
 637         g_return_val_if_fail(dest != NULL, -1);
 638         g_return_val_if_fail(file != NULL, -1);
 639
 640         session = imap_session_get(folder);
 641         if (!session) return -1;
 642
 643         ok = imap_status(session, IMAP_FOLDER(folder), dest->path,
 644                          &messages, &recent, &uid_next, &uid_validity, &unseen);
 645         statusbar_pop_all();
 646         if (ok != IMAP_SUCCESS) {
 647                 g_warning(_("can't append message %s\n"), file);
 648                 return -1;
 649         }
 650
 651         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 652         ok = imap_cmd_append(SESSION(session)->sock, destdir, file);
 653         g_free(destdir);
 654
 655         if (ok != IMAP_SUCCESS) {
 656                 g_warning(_("can't append message %s\n"), file);
 657                 return -1;
 658         }
 659
 660         if (remove_source) {
 661                 if (unlink(file) < 0)
 662                         FILE_OP_ERROR(file, "unlink");
 663         }
 664
 665         return uid_next;
 666 }
 667
 668 static gint imap_do_copy(Folder *folder, FolderItem *dest, MsgInfo *msginfo,
 669                          gboolean remove_source)
 670 {
 671         gchar *destdir;
 672         IMAPSession *session;
 673         gint ok;
 674
 675         g_return_val_if_fail(folder != NULL, -1);
 676         g_return_val_if_fail(folder->type == F_IMAP, -1);
 677         g_return_val_if_fail(dest != NULL, -1);
 678         g_return_val_if_fail(msginfo != NULL, -1);
 679
 680         session = imap_session_get(folder);
 681         if (!session) return -1;
 682
 683         if (msginfo->folder == dest) {
 684                 g_warning(_("the src folder is identical to the dest.\n"));
 685                 return -1;
 686         }
 687
 688         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 689
 690         if (remove_source)
 691                 debug_print(_("Moving message %s%c%d to %s ...\n"),
 692                             msginfo->folder->path, G_DIR_SEPARATOR,
 693                             msginfo->msgnum, destdir);
 694         else
 695                 debug_print(_("Copying message %s%c%d to %s ...\n"),
 696                             msginfo->folder->path, G_DIR_SEPARATOR,
 697                             msginfo->msgnum, destdir);
 698
 699         ok = imap_cmd_copy(SESSION(session)->sock, msginfo->msgnum, destdir);
 700
 701         if (ok == IMAP_SUCCESS && remove_source) {
 702                 imap_set_message_flags(session, msginfo->msgnum, msginfo->msgnum,
 703                                        IMAP_FLAG_DELETED, TRUE);
 704                 ok = imap_cmd_expunge(SESSION(session)->sock);
 705         }
 706
 707         g_free(destdir);
 708         statusbar_pop_all();
 709
 710         if (ok == IMAP_SUCCESS)
 711                 return 0;
 712         else
 713                 return -1;
 714 }
 715
 716 static gint imap_do_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
 717                                         GSList *msglist,
 718                                         gboolean remove_source)
 719 {
 720         gchar *destdir;
 721         GSList *cur;
 722         MsgInfo *msginfo;
 723         IMAPSession *session;
 724         gint ok = IMAP_SUCCESS;
 725
 726         g_return_val_if_fail(folder != NULL, -1);
 727         g_return_val_if_fail(dest != NULL, -1);
 728         g_return_val_if_fail(msglist != NULL, -1);
 729
 730         session = imap_session_get(folder);
 731         if (!session) return -1;
 732
 733         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 734
 735         for (cur = msglist; cur != NULL; cur = cur->next) {
 736                 msginfo = (MsgInfo *)cur->data;
 737
 738                 if (msginfo->folder == dest) {
 739                         g_warning(_("the src folder is identical to the dest.\n"));
 740                         continue;
 741                 }
 742
 743                 if (remove_source)
 744                         debug_print(_("Moving message %s%c%d to %s ...\n"),
 745                                     msginfo->folder->path, G_DIR_SEPARATOR,
 746                                     msginfo->msgnum, destdir);
 747                 else
 748                         debug_print(_("Copying message %s%c%d to %s ...\n"),
 749                                     msginfo->folder->path, G_DIR_SEPARATOR,
 750                                     msginfo->msgnum, destdir);
 751
 752                 ok = imap_cmd_copy(SESSION(session)->sock, msginfo->msgnum,
 753                                    destdir);
 754
 755                 if (ok == IMAP_SUCCESS && remove_source) {
 756                         imap_set_message_flags
 757                                 (session, msginfo->msgnum, msginfo->msgnum,
 758                                  IMAP_FLAG_DELETED, TRUE);
 759                 }
 760         }
 761
 762         if (remove_source)
 763                 ok = imap_cmd_expunge(SESSION(session)->sock);
 764
 765         g_free(destdir);
 766         statusbar_pop_all();
 767
 768         if (ok == IMAP_SUCCESS)
 769                 return 0;
 770         else
 771                 return -1;
 772 }
 773
 774 gint imap_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 775 {
 776         gchar *srcfile;
 777         gint ret = 0;
 778
 779         g_return_val_if_fail(folder != NULL, -1);
 780         g_return_val_if_fail(dest != NULL, -1);
 781         g_return_val_if_fail(msginfo != NULL, -1);
 782         g_return_val_if_fail(msginfo->folder != NULL, -1);
 783
 784         if (folder == msginfo->folder->folder)
 785                 return imap_do_copy(folder, dest, msginfo, TRUE);
 786
 787         srcfile = procmsg_get_message_file(msginfo);
 788         if (!srcfile) return -1;
 789
 790         ret = imap_add_msg(folder, dest, srcfile, FALSE);
 791         g_free(srcfile);
 792
 793         if (ret != -1)
 794                 ret = folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
 795
 796         return ret;
 797 }
 798
 799 gint imap_move_msgs_with_dest(Folder *folder, FolderItem *dest,
 800                               GSList *msglist)
 801 {
 802         MsgInfo *msginfo;
 803         GSList *cur;
 804         gint ret = 0;
 805
 806         g_return_val_if_fail(folder != NULL, -1);
 807         g_return_val_if_fail(dest != NULL, -1);
 808         g_return_val_if_fail(msglist != NULL, -1);
 809
 810         msginfo = (MsgInfo *)msglist->data;
 811         if (folder == msginfo->folder->folder)
 812                 return imap_do_copy_msgs_with_dest(folder, dest, msglist, TRUE);
 813
 814         for (cur = msglist; cur != NULL; cur = cur->next) {
 815                 msginfo = (MsgInfo *)cur->data;
 816                 ret = imap_move_msg(folder, dest, msginfo);
 817                 if (ret == -1) break;
 818         }
 819
 820         return ret;
 821 }
 822
 823 gint imap_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 824 {
 825         gchar *srcfile;
 826         gint ret = 0;
 827
 828         g_return_val_if_fail(folder != NULL, -1);
 829         g_return_val_if_fail(dest != NULL, -1);
 830         g_return_val_if_fail(msginfo != NULL, -1);
 831         g_return_val_if_fail(msginfo->folder != NULL, -1);
 832
 833         if (folder == msginfo->folder->folder)
 834                 return imap_do_copy(folder, dest, msginfo, FALSE);
 835
 836         srcfile = procmsg_get_message_file(msginfo);
 837         if (!srcfile) return -1;
 838
 839         ret = imap_add_msg(folder, dest, srcfile, FALSE);
 840
 841         g_free(srcfile);
 842
 843         return ret;
 844 }
 845
 846 gint imap_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
 847                               GSList *msglist)
 848 {
 849         MsgInfo *msginfo;
 850         GSList *cur;
 851         gint ret = 0;
 852
 853         g_return_val_if_fail(folder != NULL, -1);
 854         g_return_val_if_fail(dest != NULL, -1);
 855         g_return_val_if_fail(msglist != NULL, -1);
 856
 857         msginfo = (MsgInfo *)msglist->data;
 858         if (folder == msginfo->folder->folder)
 859                 return imap_do_copy_msgs_with_dest
 860                         (folder, dest, msglist, FALSE);
 861
 862         for (cur = msglist; cur != NULL; cur = cur->next) {
 863                 msginfo = (MsgInfo *)cur->data;
 864                 ret = imap_copy_msg(folder, dest, msginfo);
 865                 if (ret == -1) break;
 866         }
 867
 868         return ret;
 869 }
 870
 871 gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
 872 {
 873         gint exists, recent, unseen;
 874         guint32 uid_validity;
 875         gint ok;
 876         IMAPSession *session;
 877
 878         g_return_val_if_fail(folder != NULL, -1);
 879         g_return_val_if_fail(folder->type == F_IMAP, -1);
 880         g_return_val_if_fail(item != NULL, -1);
 881
 882         session = imap_session_get(folder);
 883         if (!session) return -1;
 884
 885         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 886                          &exists, &recent, &unseen, &uid_validity);
 887         statusbar_pop_all();
 888         if (ok != IMAP_SUCCESS)
 889                 return ok;
 890
 891         ok = imap_set_message_flags
 892                 (IMAP_SESSION(REMOTE_FOLDER(folder)->session),
 893                  (guint32)uid, (guint32)uid, IMAP_FLAG_DELETED, TRUE);
 894         statusbar_pop_all();
 895         if (ok != IMAP_SUCCESS) {
 896                 log_warning(_("can't set deleted flags: %d\n"), uid);
 897                 return ok;
 898         }
 899
 900         ok = imap_cmd_expunge(SESSION(session)->sock);
 901         statusbar_pop_all();
 902         if (ok != IMAP_SUCCESS) {
 903                 log_warning(_("can't expunge\n"));
 904                 return ok;
 905         }
 906
 907         return IMAP_SUCCESS;
 908 }
 909
 910 gint imap_remove_all_msg(Folder *folder, FolderItem *item)
 911 {
 912         gint exists, recent, unseen;
 913         guint32 uid_validity;
 914         gint ok;
 915         IMAPSession *session;
 916
 917         g_return_val_if_fail(folder != NULL, -1);
 918         g_return_val_if_fail(item != NULL, -1);
 919
 920         session = imap_session_get(folder);
 921         if (!session) return -1;
 922
 923         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 924                          &exists, &recent, &unseen, &uid_validity);
 925         statusbar_pop_all();
 926         if (ok != IMAP_SUCCESS)
 927                 return ok;
 928         if (exists == 0)
 929                 return IMAP_SUCCESS;
 930
 931         imap_cmd_gen_send(SESSION(session)->sock,
 932                           "STORE 1:%d +FLAGS (\\Deleted)", exists);
 933         ok = imap_cmd_ok(SESSION(session)->sock, NULL);
 934         statusbar_pop_all();
 935         if (ok != IMAP_SUCCESS) {
 936                 log_warning(_("can't set deleted flags: 1:%d\n"), exists);
 937                 return ok;
 938         }
 939
 940         ok = imap_cmd_expunge(SESSION(session)->sock);
 941         statusbar_pop_all();
 942         if (ok != IMAP_SUCCESS) {
 943                 log_warning(_("can't expunge\n"));
 944                 return ok;
 945         }
 946
 947         return IMAP_SUCCESS;
 948 }
 949
 950 gboolean imap_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 951 {
 952         /* TODO: properly implement this method */
 953         return FALSE;
 954 }
 955
 956 gint imap_scan_folder(Folder *folder, FolderItem *item)
 957 {
 958         IMAPSession *session;
 959         gint messages, recent, unseen;
 960         guint32 uid_next, uid_validity;
 961         gint ok;
 962
 963         g_return_val_if_fail(folder != NULL, -1);
 964         g_return_val_if_fail(item != NULL, -1);
 965
 966         session = imap_session_get(folder);
 967         if (!session) return -1;
 968
 969         ok = imap_status(session, IMAP_FOLDER(folder), item->path,
 970                          &messages, &recent, &uid_next, &uid_validity, &unseen);
 971         statusbar_pop_all();
 972         if (ok != IMAP_SUCCESS) return -1;
 973
 974         item->new = unseen > 0 ? recent : 0;
 975         item->unread = unseen;
 976         item->total = messages;
 977         item->last_num = (messages > 0 && uid_next > 0) ? uid_next - 1 : 0;
 978         /* item->mtime = uid_validity; */
 979
 980         return 0;
 981 }
 982
 983 void imap_scan_tree(Folder *folder)
 984 {
 985         FolderItem *item;
 986         IMAPSession *session;
 987         gchar *root_folder = NULL;
 988
 989         g_return_if_fail(folder != NULL);
 990         g_return_if_fail(folder->account != NULL);
 991
 992         session = imap_session_get(folder);
 993         if (!session) return;
 994
 995         if (folder->account->imap_dir && *folder->account->imap_dir) {
 996                 Xstrdup_a(root_folder, folder->account->imap_dir, return);
 997                 strtailchomp(root_folder, '/');
 998                 debug_print("IMAP root directory: %s\n", root_folder);
 999         }
1000
1001         folder_tree_destroy(folder);
1002         item = folder_item_new(folder->name, root_folder);
1003         item->folder = folder;
1004         folder->node = g_node_new(item);
1005
1006         imap_scan_tree_recursive(session, item);
1007
1008         imap_create_missing_folders(folder);
1009 }
1010
1011 static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item)
1012 {
1013         Folder *folder;
1014         IMAPFolder *imapfolder;
1015         FolderItem *new_item;
1016         GSList *item_list, *cur;
1017         gchar *real_path;
1018         gchar *wildcard_path;
1019         gchar separator;
1020         gchar wildcard[3];
1021
1022         g_return_val_if_fail(item != NULL, -1);
1023         g_return_val_if_fail(item->folder != NULL, -1);
1024         g_return_val_if_fail(item->no_sub == FALSE, -1);
1025
1026         folder = FOLDER(item->folder);
1027         imapfolder = IMAP_FOLDER(folder);
1028
1029         separator = imap_get_path_separator(imapfolder, item->path);
1030
1031         if (item->folder->ui_func)
1032                 item->folder->ui_func(folder, item, folder->ui_func_data);
1033
1034         if (item->path) {
1035                 wildcard[0] = separator;
1036                 wildcard[1] = '%';
1037                 wildcard[2] = '\0';
1038                 real_path = imap_get_real_path(imapfolder, item->path);
1039         } else {
1040                 wildcard[0] = '%';
1041                 wildcard[1] = '\0';
1042                 real_path = g_strdup("");
1043         }
1044
1045         Xstrcat_a(wildcard_path, real_path, wildcard,
1046                   {g_free(real_path); return IMAP_ERROR;});
1047         QUOTE_IF_REQUIRED(wildcard_path, wildcard_path);
1048
1049         imap_cmd_gen_send(SESSION(session)->sock, "LIST \"\" %s",
1050                           wildcard_path);
1051
1052         strtailchomp(real_path, separator);
1053         item_list = imap_parse_list(session, real_path);
1054         g_free(real_path);
1055
1056         for (cur = item_list; cur != NULL; cur = cur->next) {
1057                 new_item = cur->data;
1058                 if (!strcmp(new_item->path, "INBOX")) {
1059                         if (!folder->inbox) {
1060                                 new_item->stype = F_INBOX;
1061                                 item->folder->inbox = new_item;
1062                         } else {
1063                                 folder_item_destroy(new_item);
1064                                 continue;
1065                         }
1066                 } else if (!item->parent || item->stype == F_INBOX) {
1067                         gchar *base;
1068
1069                         base = g_basename(new_item->path);
1070
1071                         if (!folder->outbox && !strcasecmp(base, "Sent")) {
1072                                 new_item->stype = F_OUTBOX;
1073                                 folder->outbox = new_item;
1074                         } else if (!folder->draft && !strcasecmp(base, "Drafts")) {
1075                                 new_item->stype = F_DRAFT;
1076                                 folder->draft = new_item;
1077                         } else if (!folder->queue && !strcasecmp(base, "Queue")) {
1078                                 new_item->stype = F_QUEUE;
1079                                 folder->queue = new_item;
1080                         } else if (!folder->trash && !strcasecmp(base, "Trash")) {
1081                                 new_item->stype = F_TRASH;
1082                                 folder->trash = new_item;
1083                         }
1084                 }
1085                 folder_item_append(item, new_item);
1086                 if (new_item->no_select == FALSE)
1087                         imap_scan_folder(folder, new_item);
1088                 if (new_item->no_sub == FALSE)
1089                         imap_scan_tree_recursive(session, new_item);
1090         }
1091
1092         return IMAP_SUCCESS;
1093 }
1094
1095 static GSList *imap_parse_list(IMAPSession *session, const gchar *real_path)
1096 {
1097         gchar buf[IMAPBUFSIZE];
1098         gchar flags[256];
1099         gchar separator[16];
1100         gchar *p;
1101         gchar *name;
1102         gchar *loc_name, *loc_path;
1103         GSList *item_list = NULL;
1104         GString *str;
1105         FolderItem *new_item;
1106
1107         debug_print("getting list of %s ...\n",
1108                     *real_path ? real_path : "\"\"");
1109
1110         str = g_string_new(NULL);
1111
1112         for (;;) {
1113                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) <= 0) {
1114                         log_warning(_("error occured while getting LIST.\n"));
1115                         break;
1116                 }
1117                 strretchomp(buf);
1118                 if (buf[0] != '*' || buf[1] != ' ') {
1119                         log_print("IMAP4< %s\n", buf);
1120                         break;
1121                 }
1122                 debug_print("IMAP4< %s\n", buf);
1123
1124                 g_string_assign(str, buf);
1125                 p = str->str + 2;
1126                 if (strncmp(p, "LIST ", 5) != 0) continue;
1127                 p += 5;
1128
1129                 if (*p != '(') continue;
1130                 p++;
1131                 p = strchr_cpy(p, ')', flags, sizeof(flags));
1132                 if (!p) continue;
1133                 while (*p == ' ') p++;
1134
1135                 p = strchr_cpy(p, ' ', separator, sizeof(separator));
1136                 if (!p) continue;
1137                 extract_quote(separator, '"');
1138                 if (!strcmp(separator, "NIL"))
1139                         separator[0] = '\0';
1140
1141                 buf[0] = '\0';
1142                 while (*p == ' ') p++;
1143                 if (*p == '{' || *p == '"')
1144                         p = imap_parse_atom(SESSION(session)->sock, p,
1145                                             buf, sizeof(buf), str);
1146                 else
1147                         strncpy2(buf, p, sizeof(buf));
1148                 strtailchomp(buf, separator[0]);
1149                 if (buf[0] == '\0') continue;
1150                 if (!strcmp(buf, real_path)) continue;
1151
1152                 if (separator[0] != '\0')
1153                         subst_char(buf, separator[0], '/');
1154                 name = g_basename(buf);
1155                 if (name[0] == '.') continue;
1156
1157                 loc_name = imap_modified_utf7_to_locale(name);
1158                 loc_path = imap_modified_utf7_to_locale(buf);
1159                 new_item = folder_item_new(loc_name, loc_path);
1160                 if (strcasestr(flags, "\\Noinferiors") != NULL)
1161                         new_item->no_sub = TRUE;
1162                 if (strcmp(buf, "INBOX") != 0 &&
1163                     strcasestr(flags, "\\Noselect") != NULL)
1164                         new_item->no_select = TRUE;
1165
1166                 item_list = g_slist_append(item_list, new_item);
1167
1168                 debug_print("folder %s has been added.\n", loc_path);
1169                 g_free(loc_path);
1170                 g_free(loc_name);
1171         }
1172
1173         g_string_free(str, TRUE);
1174         statusbar_pop_all();
1175
1176         return item_list;
1177 }
1178
1179 gint imap_create_tree(Folder *folder)
1180 {
1181         g_return_val_if_fail(folder != NULL, -1);
1182         g_return_val_if_fail(folder->node != NULL, -1);
1183         g_return_val_if_fail(folder->node->data != NULL, -1);
1184         g_return_val_if_fail(folder->account != NULL, -1);
1185
1186         imap_scan_tree(folder);
1187         imap_create_missing_folders(folder);
1188
1189         return 0;
1190 }
1191
1192 static void imap_create_missing_folders(Folder *folder)
1193 {
1194         g_return_if_fail(folder != NULL);
1195
1196         if (!folder->inbox)
1197                 folder->inbox = imap_create_special_folder
1198                         (folder, F_INBOX, "INBOX");
1199 #if 0
1200         if (!folder->outbox)
1201                 folder->outbox = imap_create_special_folder
1202                         (folder, F_OUTBOX, "Sent");
1203         if (!folder->draft)
1204                 folder->draft = imap_create_special_folder
1205                         (folder, F_DRAFT, "Drafts");
1206         if (!folder->queue)
1207                 folder->queue = imap_create_special_folder
1208                         (folder, F_QUEUE, "Queue");
1209 #endif
1210         if (!folder->trash)
1211                 folder->trash = imap_create_special_folder
1212                         (folder, F_TRASH, "Trash");
1213 }
1214
1215 static FolderItem *imap_create_special_folder(Folder *folder,
1216                                               SpecialFolderItemType stype,
1217                                               const gchar *name)
1218 {
1219         FolderItem *item;
1220         FolderItem *new_item;
1221
1222         g_return_val_if_fail(folder != NULL, NULL);
1223         g_return_val_if_fail(folder->node != NULL, NULL);
1224         g_return_val_if_fail(folder->node->data != NULL, NULL);
1225         g_return_val_if_fail(folder->account != NULL, NULL);
1226         g_return_val_if_fail(name != NULL, NULL);
1227
1228         item = FOLDER_ITEM(folder->node->data);
1229         new_item = imap_create_folder(folder, item, name);
1230
1231         if (!new_item) {
1232                 g_warning(_("Can't create '%s'\n"), name);
1233                 if (!folder->inbox) return NULL;
1234
1235                 new_item = imap_create_folder(folder, folder->inbox, name);
1236                 if (!new_item)
1237                         g_warning(_("Can't create '%s' under INBOX\n"), name);
1238                 else
1239                         new_item->stype = stype;
1240         } else
1241                 new_item->stype = stype;
1242
1243         return new_item;
1244 }
1245
1246 FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
1247                                const gchar *name)
1248 {
1249         gchar *dirpath, *imap_path;
1250         IMAPSession *session;
1251         FolderItem *new_item;
1252         gchar separator;
1253         gchar *new_name;
1254         const gchar *p;
1255         gint ok;
1256
1257         g_return_val_if_fail(folder != NULL, NULL);
1258         g_return_val_if_fail(folder->account != NULL, NULL);
1259         g_return_val_if_fail(parent != NULL, NULL);
1260         g_return_val_if_fail(name != NULL, NULL);
1261
1262         session = imap_session_get(folder);
1263         if (!session) return NULL;
1264
1265         if (!parent->parent && strcmp(name, "INBOX") == 0)
1266                 dirpath = g_strdup(name);
1267         else if (parent->path)
1268                 dirpath = g_strconcat(parent->path, "/", name, NULL);
1269         else if ((p = strchr(name, '/')) != NULL && *(p + 1) != '\0')
1270                 dirpath = g_strdup(name);
1271         else if (folder->account->imap_dir && *folder->account->imap_dir) {
1272                 gchar *imap_dir;
1273
1274                 Xstrdup_a(imap_dir, folder->account->imap_dir, return NULL);
1275                 strtailchomp(imap_dir, '/');
1276                 dirpath = g_strconcat(imap_dir, "/", name, NULL);
1277         } else
1278                 dirpath = g_strdup(name);
1279
1280         /* keep trailing directory separator to create a folder that contains
1281            sub folder */
1282         imap_path = imap_locale_to_modified_utf7(dirpath);
1283         strtailchomp(dirpath, '/');
1284         Xstrdup_a(new_name, name, {g_free(dirpath); return NULL;});
1285         strtailchomp(new_name, '/');
1286         separator = imap_get_path_separator(IMAP_FOLDER(folder), imap_path);
1287         imap_path_separator_subst(imap_path, separator);
1288         subst_char(new_name, '/', separator);
1289
1290         if (strcmp(name, "INBOX") != 0) {
1291                 GPtrArray *argbuf;
1292                 gint i;
1293                 gboolean exist = FALSE;
1294
1295                 argbuf = g_ptr_array_new();
1296                 ok = imap_cmd_list(SESSION(session)->sock, NULL, imap_path,
1297                                    argbuf);
1298                 statusbar_pop_all();
1299                 if (ok != IMAP_SUCCESS) {
1300                         log_warning(_("can't create mailbox: LIST failed\n"));
1301                         g_free(imap_path);
1302                         g_free(dirpath);
1303                         g_ptr_array_free(argbuf, TRUE);
1304                         return NULL;
1305                 }
1306
1307                 for (i = 0; i < argbuf->len; i++) {
1308                         gchar *str;
1309                         str = g_ptr_array_index(argbuf, i);
1310                         if (!strncmp(str, "LIST ", 5)) {
1311                                 exist = TRUE;
1312                                 break;
1313                         }
1314                 }
1315                 g_ptr_array_free(argbuf, TRUE);
1316
1317                 if (!exist) {
1318                         ok = imap_cmd_create(SESSION(session)->sock, imap_path);
1319                         statusbar_pop_all();
1320                         if (ok != IMAP_SUCCESS) {
1321                                 log_warning(_("can't create mailbox\n"));
1322                                 g_free(imap_path);
1323                                 g_free(dirpath);
1324                                 return NULL;
1325                         }
1326                 }
1327         }
1328
1329         new_item = folder_item_new(new_name, dirpath);
1330         folder_item_append(parent, new_item);
1331         g_free(imap_path);
1332         g_free(dirpath);
1333
1334         dirpath = folder_item_get_path(new_item);
1335         if (!is_dir_exist(dirpath))
1336                 make_dir_hier(dirpath);
1337         g_free(dirpath);
1338
1339         return new_item;
1340 }
1341
1342 gint imap_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
1343 {
1344         gchar *dirpath;
1345         gchar *newpath;
1346         gchar *real_oldpath;
1347         gchar *real_newpath;
1348         GNode *node;
1349         gchar *paths[2];
1350         gchar *old_cache_dir;
1351         gchar *new_cache_dir;
1352         IMAPSession *session;
1353         gchar separator;
1354         gint ok;
1355         gint exists, recent, unseen;
1356         guint32 uid_validity;
1357
1358         g_return_val_if_fail(folder != NULL, -1);
1359         g_return_val_if_fail(item != NULL, -1);
1360         g_return_val_if_fail(item->path != NULL, -1);
1361         g_return_val_if_fail(name != NULL, -1);
1362
1363         session = imap_session_get(folder);
1364         if (!session) return -1;
1365
1366         real_oldpath = imap_get_real_path(IMAP_FOLDER(folder), item->path);
1367
1368         g_free(session->mbox);
1369         session->mbox = NULL;
1370         ok = imap_cmd_examine(SESSION(session)->sock, "INBOX",
1371                               &exists, &recent, &unseen, &uid_validity);
1372         statusbar_pop_all();
1373         if (ok != IMAP_SUCCESS) {
1374                 g_free(real_oldpath);
1375                 return -1;
1376         }
1377
1378         separator = imap_get_path_separator(IMAP_FOLDER(folder), item->path);
1379         if (strchr(item->path, G_DIR_SEPARATOR)) {
1380                 dirpath = g_dirname(item->path);
1381                 newpath = g_strconcat(dirpath, G_DIR_SEPARATOR_S, name, NULL);
1382                 g_free(dirpath);
1383         } else
1384                 newpath = g_strdup(name);
1385
1386         real_newpath = imap_locale_to_modified_utf7(newpath);
1387         imap_path_separator_subst(real_newpath, separator);
1388
1389         ok = imap_cmd_rename(SESSION(session)->sock, real_oldpath, real_newpath);
1390         statusbar_pop_all();
1391         if (ok != IMAP_SUCCESS) {
1392                 log_warning(_("can't rename mailbox: %s to %s\n"),
1393                             real_oldpath, real_newpath);
1394                 g_free(real_oldpath);
1395                 g_free(newpath);
1396                 g_free(real_newpath);
1397                 return -1;
1398         }
1399
1400         g_free(item->name);
1401         item->name = g_strdup(name);
1402
1403         old_cache_dir = folder_item_get_path(item);
1404
1405         node = g_node_find(item->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL,
1406                            item);
1407         paths[0] = g_strdup(item->path);
1408         paths[1] = newpath;
1409         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1410                         imap_rename_folder_func, paths);
1411
1412         if (is_dir_exist(old_cache_dir)) {
1413                 new_cache_dir = folder_item_get_path(item);
1414                 if (rename(old_cache_dir, new_cache_dir) < 0) {
1415                         FILE_OP_ERROR(old_cache_dir, "rename");
1416                 }
1417                 g_free(new_cache_dir);
1418         }
1419
1420         g_free(old_cache_dir);
1421         g_free(paths[0]);
1422         g_free(newpath);
1423         g_free(real_oldpath);
1424         g_free(real_newpath);
1425
1426         return 0;
1427 }
1428
1429 gint imap_remove_folder(Folder *folder, FolderItem *item)
1430 {
1431         gint ok;
1432         IMAPSession *session;
1433         gchar *path;
1434         gchar *cache_dir;
1435         gint exists, recent, unseen;
1436         guint32 uid_validity;
1437
1438         g_return_val_if_fail(folder != NULL, -1);
1439         g_return_val_if_fail(item != NULL, -1);
1440         g_return_val_if_fail(item->path != NULL, -1);
1441
1442         session = imap_session_get(folder);
1443         if (!session) return -1;
1444
1445         path = imap_get_real_path(IMAP_FOLDER(folder), item->path);
1446
1447         ok = imap_cmd_examine(SESSION(session)->sock, "INBOX",
1448                               &exists, &recent, &unseen, &uid_validity);
1449         statusbar_pop_all();
1450         if (ok != IMAP_SUCCESS) {
1451                 g_free(path);
1452                 return -1;
1453         }
1454
1455         ok = imap_cmd_delete(SESSION(session)->sock, path);
1456         statusbar_pop_all();
1457         if (ok != IMAP_SUCCESS) {
1458                 log_warning(_("can't delete mailbox\n"));
1459                 g_free(path);
1460                 return -1;
1461         }
1462
1463         g_free(path);
1464         cache_dir = folder_item_get_path(item);
1465         if (is_dir_exist(cache_dir) && remove_dir_recursive(cache_dir) < 0)
1466                 g_warning("can't remove directory '%s'\n", cache_dir);
1467         g_free(cache_dir);
1468         folder_item_remove(item);
1469
1470         return 0;
1471 }
1472
1473 static GSList *imap_get_uncached_messages(IMAPSession *session,
1474                                           FolderItem *item,
1475                                           guint32 first_uid, guint32 last_uid)
1476 {
1477         gchar *tmp;
1478         GSList *newlist = NULL;
1479         GSList *llast = NULL;
1480         GString *str;
1481         MsgInfo *msginfo;
1482
1483         g_return_val_if_fail(session != NULL, NULL);
1484         g_return_val_if_fail(item != NULL, NULL);
1485         g_return_val_if_fail(item->folder != NULL, NULL);
1486         g_return_val_if_fail(item->folder->type == F_IMAP, NULL);
1487         g_return_val_if_fail(first_uid <= last_uid, NULL);
1488
1489         if (imap_cmd_envelope(SESSION(session)->sock, first_uid, last_uid)
1490             != IMAP_SUCCESS) {
1491                 log_warning(_("can't get envelope\n"));
1492                 return NULL;
1493         }
1494
1495         str = g_string_new(NULL);
1496
1497         for (;;) {
1498                 if ((tmp = sock_getline(SESSION(session)->sock)) == NULL) {
1499                         log_warning(_("error occurred while getting envelope.\n"));
1500                         g_string_free(str, TRUE);
1501                         return newlist;
1502                 }
1503                 strretchomp(tmp);
1504                 if (tmp[0] != '*' || tmp[1] != ' ') {
1505                         log_print("IMAP4< %s\n", tmp);
1506                         g_free(tmp);
1507                         break;
1508                 }
1509                 if (strstr(tmp, "FETCH") == NULL) {
1510                         log_print("IMAP4< %s\n", tmp);
1511                         g_free(tmp);
1512                         continue;
1513                 }
1514                 log_print("IMAP4< %s\n", tmp);
1515                 g_string_assign(str, tmp);
1516                 g_free(tmp);
1517
1518                 msginfo = imap_parse_envelope
1519                         (SESSION(session)->sock, item, str);
1520                 if (!msginfo) {
1521                         log_warning(_("can't parse envelope: %s\n"), str->str);
1522                         continue;
1523                 }
1524                 if (item->stype == F_QUEUE) {
1525                         MSG_SET_TMP_FLAGS(msginfo->flags, MSG_QUEUED);
1526                 } else if (item->stype == F_DRAFT) {
1527                         MSG_SET_TMP_FLAGS(msginfo->flags, MSG_DRAFT);
1528                 }
1529
1530                 msginfo->folder = item;
1531
1532                 if (!newlist)
1533                         llast = newlist = g_slist_append(newlist, msginfo);
1534                 else {
1535                         llast = g_slist_append(llast, msginfo);
1536                         llast = llast->next;
1537                 }
1538         }
1539
1540         g_string_free(str, TRUE);
1541
1542         return newlist;
1543 }
1544
1545 static GSList *imap_delete_cached_messages(GSList *mlist, FolderItem *item,
1546                                            guint32 first_uid, guint32 last_uid)
1547 {
1548         GSList *cur, *next;
1549         MsgInfo *msginfo;
1550         gchar *dir;
1551
1552         g_return_val_if_fail(item != NULL, mlist);
1553         g_return_val_if_fail(item->folder != NULL, mlist);
1554         g_return_val_if_fail(item->folder->type == F_IMAP, mlist);
1555
1556         debug_print(_("Deleting cached messages %u - %u ... "),
1557                     first_uid, last_uid);
1558
1559         dir = folder_item_get_path(item);
1560         remove_numbered_files(dir, first_uid, last_uid);
1561         g_free(dir);
1562
1563         for (cur = mlist; cur != NULL; ) {
1564                 next = cur->next;
1565
1566                 msginfo = (MsgInfo *)cur->data;
1567                 if (msginfo != NULL && first_uid <= msginfo->msgnum &&
1568                     msginfo->msgnum <= last_uid) {
1569                         procmsg_msginfo_free(msginfo);
1570                         mlist = g_slist_remove(mlist, msginfo);
1571                 }
1572
1573                 cur = next;
1574         }
1575
1576         debug_print(_("done.\n"));
1577
1578         return mlist;
1579 }
1580
1581 static void imap_delete_all_cached_messages(FolderItem *item)
1582 {
1583         gchar *dir;
1584
1585         g_return_if_fail(item != NULL);
1586         g_return_if_fail(item->folder != NULL);
1587         g_return_if_fail(item->folder->type == F_IMAP);
1588
1589         debug_print(_("Deleting all cached messages... "));
1590
1591         dir = folder_item_get_path(item);
1592         remove_all_numbered_files(dir);
1593         g_free(dir);
1594
1595         debug_print(_("done.\n"));
1596 }
1597
1598 #if USE_SSL
1599 static SockInfo *imap_open_tunnel(const gchar *server,
1600                            const gchar *tunnelcmd,
1601                            SSLType ssl_type)
1602 #else
1603 static SockInfo *imap_open_tunnel(const gchar *server,
1604                            const gchar *tunnelcmd)
1605 #endif
1606 {
1607         SockInfo *sock;
1608
1609         if ((sock = sock_connect_cmd(server, tunnelcmd)) == NULL)
1610                 log_warning(_("Can't establish IMAP4 session with: %s\n"),
1611                             server);
1612                 return NULL;
1613 #if USE_SSL
1614         return imap_init_sock(sock, ssl_type);
1615 #else
1616         return imap_init_sock(sock);
1617 #endif
1618 }
1619
1620
1621 #if USE_SSL
1622 static SockInfo *imap_open(const gchar *server, gushort port,
1623                            SSLType ssl_type)
1624 #else
1625 static SockInfo *imap_open(const gchar *server, gushort port)
1626 #endif
1627 {
1628         SockInfo *sock;
1629
1630         if ((sock = sock_connect(server, port)) == NULL) {
1631                 log_warning(_("Can't connect to IMAP4 server: %s:%d\n"),
1632                             server, port);
1633                 return NULL;
1634         }
1635
1636 #if USE_SSL
1637         if (ssl_type == SSL_TUNNEL && !ssl_init_socket(sock)) {
1638                 log_warning(_("Can't establish IMAP4 session with: %s:%d\n"),
1639                             server, port);
1640                 sock_close(sock);
1641                 return NULL;
1642         }
1643         return imap_init_sock(sock, ssl_type);
1644 #else
1645         return imap_init_sock(sock);
1646 #endif
1647 }
1648
1649 #if USE_SSL
1650 static SockInfo *imap_init_sock(SockInfo *sock, SSLType ssl_type)
1651 #else
1652 static SockInfo *imap_init_sock(SockInfo *sock)
1653 #endif
1654 {
1655         imap_cmd_count = 0;
1656 #if USE_SSL
1657         if (ssl_type == SSL_STARTTLS) {
1658                 gint ok;
1659
1660                 ok = imap_cmd_starttls(sock);
1661                 if (ok != IMAP_SUCCESS) {
1662                         log_warning(_("Can't start TLS session.\n"));
1663                         sock_close(sock);
1664                         return NULL;
1665                 }
1666                 if (!ssl_init_socket_with_method(sock, SSL_METHOD_TLSv1)) {
1667                         sock_close(sock);
1668                         return NULL;
1669                 }
1670         }
1671 #endif
1672
1673         if (imap_cmd_noop(sock) != IMAP_SUCCESS) {
1674                 log_warning(_("Can't establish IMAP4 session.\n"));
1675                 sock_close(sock);
1676                 return NULL;
1677         }
1678
1679         return sock;
1680 }
1681
1682 static GList *imap_parse_namespace_str(gchar *str)
1683 {
1684         gchar *p = str;
1685         gchar *name;
1686         gchar *separator;
1687         IMAPNameSpace *namespace;
1688         GList *ns_list = NULL;
1689
1690         while (*p != '\0') {
1691                 /* parse ("#foo" "/") */
1692
1693                 while (*p && *p != '(') p++;
1694                 if (*p == '\0') break;
1695                 p++;
1696
1697                 while (*p && *p != '"') p++;
1698                 if (*p == '\0') break;
1699                 p++;
1700                 name = p;
1701
1702                 while (*p && *p != '"') p++;
1703                 if (*p == '\0') break;
1704                 *p = '\0';
1705                 p++;
1706
1707                 while (*p && isspace(*p)) p++;
1708                 if (*p == '\0') break;
1709                 if (strncmp(p, "NIL", 3) == 0)
1710                         separator = NULL;
1711                 else if (*p == '"') {
1712                         p++;
1713                         separator = p;
1714                         while (*p && *p != '"') p++;
1715                         if (*p == '\0') break;
1716                         *p = '\0';
1717                         p++;
1718                 } else break;
1719
1720                 while (*p && *p != ')') p++;
1721                 if (*p == '\0') break;
1722                 p++;
1723
1724                 namespace = g_new(IMAPNameSpace, 1);
1725                 namespace->name = g_strdup(name);
1726                 namespace->separator = separator ? separator[0] : '\0';
1727                 ns_list = g_list_append(ns_list, namespace);
1728         }
1729
1730         return ns_list;
1731 }
1732
1733 static void imap_parse_namespace(IMAPSession *session, IMAPFolder *folder)
1734 {
1735         gchar *ns_str;
1736         gchar **str_array;
1737
1738         g_return_if_fail(session != NULL);
1739         g_return_if_fail(folder != NULL);
1740
1741         if (folder->ns_personal != NULL ||
1742             folder->ns_others   != NULL ||
1743             folder->ns_shared   != NULL)
1744                 return;
1745
1746         if (imap_cmd_namespace(SESSION(session)->sock, &ns_str)
1747             != IMAP_SUCCESS) {
1748                 log_warning(_("can't get namespace\n"));
1749                 return;
1750         }
1751
1752         str_array = strsplit_parenthesis(ns_str, '(', ')', 3);
1753         if (str_array[0])
1754                 folder->ns_personal = imap_parse_namespace_str(str_array[0]);
1755         if (str_array[0] && str_array[1])
1756                 folder->ns_others = imap_parse_namespace_str(str_array[1]);
1757         if (str_array[0] && str_array[1] && str_array[2])
1758                 folder->ns_shared = imap_parse_namespace_str(str_array[2]);
1759         g_strfreev(str_array);
1760         return;
1761 }
1762
1763 static IMAPNameSpace *imap_find_namespace_from_list(GList *ns_list,
1764                                                     const gchar *path)
1765 {
1766         IMAPNameSpace *namespace = NULL;
1767         gchar *tmp_path, *name;
1768
1769         if (!path) path = "";
1770
1771         Xstrcat_a(tmp_path, path, "/", return NULL);
1772
1773         for (; ns_list != NULL; ns_list = ns_list->next) {
1774                 IMAPNameSpace *tmp_ns = ns_list->data;
1775
1776                 Xstrdup_a(name, tmp_ns->name, return namespace);
1777                 if (tmp_ns->separator && tmp_ns->separator != '/')
1778                         subst_char(name, tmp_ns->separator, '/');
1779                 if (strncmp(tmp_path, name, strlen(name)) == 0)
1780                         namespace = tmp_ns;
1781         }
1782
1783         return namespace;
1784 }
1785
1786 static IMAPNameSpace *imap_find_namespace(IMAPFolder *folder,
1787                                           const gchar *path)
1788 {
1789         IMAPNameSpace *namespace;
1790
1791         g_return_val_if_fail(folder != NULL, NULL);
1792
1793         namespace = imap_find_namespace_from_list(folder->ns_personal, path);
1794         if (namespace) return namespace;
1795         namespace = imap_find_namespace_from_list(folder->ns_others, path);
1796         if (namespace) return namespace;
1797         namespace = imap_find_namespace_from_list(folder->ns_shared, path);
1798         if (namespace) return namespace;
1799
1800         return NULL;
1801 }
1802
1803 static gchar imap_get_path_separator(IMAPFolder *folder, const gchar *path)
1804 {
1805         IMAPNameSpace *namespace;
1806         gchar separator = '/';
1807
1808         namespace = imap_find_namespace(folder, path);
1809         if (namespace && namespace->separator)
1810                 separator = namespace->separator;
1811
1812         return separator;
1813 }
1814
1815 static gchar *imap_get_real_path(IMAPFolder *folder, const gchar *path)
1816 {
1817         gchar *real_path;
1818         gchar separator;
1819
1820         g_return_val_if_fail(folder != NULL, NULL);
1821         g_return_val_if_fail(path != NULL, NULL);
1822
1823         real_path = imap_locale_to_modified_utf7(path);
1824         separator = imap_get_path_separator(folder, path);
1825         imap_path_separator_subst(real_path, separator);
1826
1827         return real_path;
1828 }
1829
1830 static gchar *imap_parse_atom(SockInfo *sock, gchar *src,
1831                               gchar *dest, gint dest_len, GString *str)
1832 {
1833         gchar *cur_pos = src;
1834         gchar *nextline;
1835
1836         g_return_val_if_fail(str != NULL, cur_pos);
1837
1838         /* read the next line if the current response buffer is empty */
1839         while (isspace(*cur_pos)) cur_pos++;
1840         while (*cur_pos == '\0') {
1841                 if ((nextline = sock_getline(sock)) == NULL)
1842                         return cur_pos;
1843                 g_string_assign(str, nextline);
1844                 cur_pos = str->str;
1845                 strretchomp(nextline);
1846                 /* log_print("IMAP4< %s\n", nextline); */
1847                 debug_print("IMAP4< %s\n", nextline);
1848                 g_free(nextline);
1849
1850                 while (isspace(*cur_pos)) cur_pos++;
1851         }
1852
1853         if (!strncmp(cur_pos, "NIL", 3)) {
1854                 *dest = '\0';
1855                 cur_pos += 3;
1856         } else if (*cur_pos == '\"') {
1857                 gchar *p;
1858
1859                 p = get_quoted(cur_pos, '\"', dest, dest_len);
1860                 cur_pos = p ? p : cur_pos + 2;
1861         } else if (*cur_pos == '{') {
1862                 gchar buf[32];
1863                 gint len;
1864                 gint line_len = 0;
1865
1866                 cur_pos = strchr_cpy(cur_pos + 1, '}', buf, sizeof(buf));
1867                 len = atoi(buf);
1868
1869                 g_string_truncate(str, 0);
1870                 cur_pos = str->str;
1871
1872                 do {
1873                         if ((nextline = sock_getline(sock)) == NULL)
1874                                 return cur_pos;
1875                         line_len += strlen(nextline);
1876                         g_string_append(str, nextline);
1877                         cur_pos = str->str;
1878                         strretchomp(nextline);
1879                         /* log_print("IMAP4< %s\n", nextline); */
1880                         debug_print("IMAP4< %s\n", nextline);
1881                         g_free(nextline);
1882                 } while (line_len < len);
1883
1884                 memcpy(dest, cur_pos, MIN(len, dest_len - 1));
1885                 dest[MIN(len, dest_len - 1)] = '\0';
1886                 cur_pos += len;
1887         }
1888
1889         return cur_pos;
1890 }
1891
1892 static gchar *imap_get_header(SockInfo *sock, gchar *cur_pos, gchar **headers,
1893                               GString *str)
1894 {
1895         gchar *nextline;
1896         gchar buf[32];
1897         gint len;
1898         gint block_len = 0;
1899
1900         *headers = NULL;
1901
1902         g_return_val_if_fail(str != NULL, cur_pos);
1903
1904         while (isspace(*cur_pos)) cur_pos++;
1905
1906         g_return_val_if_fail(*cur_pos == '{', cur_pos);
1907
1908         cur_pos = strchr_cpy(cur_pos + 1, '}', buf, sizeof(buf));
1909         len = atoi(buf);
1910
1911         g_string_truncate(str, 0);
1912         cur_pos = str->str;
1913
1914         do {
1915                 if ((nextline = sock_getline(sock)) == NULL)
1916                         return cur_pos;
1917                 block_len += strlen(nextline);
1918                 g_string_append(str, nextline);
1919                 cur_pos = str->str;
1920                 strretchomp(nextline);
1921                 /* debug_print("IMAP4< %s\n", nextline); */
1922                 g_free(nextline);
1923         } while (block_len < len);
1924
1925         debug_print("IMAP4< [contents of RFC822.HEADER]\n");
1926
1927         *headers = g_strndup(cur_pos, len);
1928         cur_pos += len;
1929
1930         while (isspace(*cur_pos)) cur_pos++;
1931         while (*cur_pos == '\0') {
1932                 if ((nextline = sock_getline(sock)) == NULL)
1933                         return cur_pos;
1934                 g_string_assign(str, nextline);
1935                 cur_pos = str->str;
1936                 strretchomp(nextline);
1937                 debug_print("IMAP4< %s\n", nextline);
1938                 g_free(nextline);
1939
1940                 while (isspace(*cur_pos)) cur_pos++;
1941         }
1942
1943         return cur_pos;
1944 }
1945
1946 static MsgFlags imap_parse_flags(const gchar *flag_str)
1947 {
1948         const gchar *p = flag_str;
1949         MsgFlags flags = {0, 0};
1950
1951         flags.perm_flags = MSG_UNREAD;
1952
1953         while ((p = strchr(p, '\\')) != NULL) {
1954                 p++;
1955
1956                 if (g_strncasecmp(p, "Recent", 6) == 0 && MSG_IS_UNREAD(flags)) {
1957                         MSG_SET_PERM_FLAGS(flags, MSG_NEW);
1958                 } else if (g_strncasecmp(p, "Seen", 4) == 0) {
1959                         MSG_UNSET_PERM_FLAGS(flags, MSG_NEW|MSG_UNREAD);
1960                 } else if (g_strncasecmp(p, "Deleted", 7) == 0) {
1961                         MSG_SET_PERM_FLAGS(flags, MSG_DELETED);
1962                 } else if (g_strncasecmp(p, "Flagged", 7) == 0) {
1963                         MSG_SET_PERM_FLAGS(flags, MSG_MARKED);
1964                 } else if (g_strncasecmp(p, "Answered", 8) == 0) {
1965                         MSG_SET_PERM_FLAGS(flags, MSG_REPLIED);
1966                 }
1967         }
1968
1969         return flags;
1970 }
1971
1972 static MsgInfo *imap_parse_envelope(SockInfo *sock, FolderItem *item,
1973                                     GString *line_str)
1974 {
1975         gchar buf[IMAPBUFSIZE];
1976         MsgInfo *msginfo = NULL;
1977         gchar *cur_pos;
1978         gint msgnum;
1979         guint32 uid = 0;
1980         size_t size = 0;
1981         MsgFlags flags = {0, 0}, imap_flags = {0, 0};
1982
1983         g_return_val_if_fail(line_str != NULL, NULL);
1984         g_return_val_if_fail(line_str->str[0] == '*' &&
1985                              line_str->str[1] == ' ', NULL);
1986
1987         MSG_SET_TMP_FLAGS(flags, MSG_IMAP);
1988         if (item->stype == F_QUEUE) {
1989                 MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
1990         } else if (item->stype == F_DRAFT) {
1991                 MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
1992         }
1993
1994         cur_pos = line_str->str + 2;
1995
1996 #define PARSE_ONE_ELEMENT(ch)                                   \
1997 {                                                               \
1998         cur_pos = strchr_cpy(cur_pos, ch, buf, sizeof(buf));    \
1999         if (cur_pos == NULL) {                                  \
2000                 g_warning("cur_pos == NULL\n");                 \
2001                 procmsg_msginfo_free(msginfo);                  \
2002                 return NULL;                                    \
2003         }                                                       \
2004 }
2005
2006         PARSE_ONE_ELEMENT(' ');
2007         msgnum = atoi(buf);
2008
2009         PARSE_ONE_ELEMENT(' ');
2010         g_return_val_if_fail(!strcmp(buf, "FETCH"), NULL);
2011
2012         g_return_val_if_fail(*cur_pos == '(', NULL);
2013         cur_pos++;
2014
2015         while (*cur_pos != '\0' && *cur_pos != ')') {
2016                 while (*cur_pos == ' ') cur_pos++;
2017
2018                 if (!strncmp(cur_pos, "UID ", 4)) {
2019                         cur_pos += 4;
2020                         uid = strtoul(cur_pos, &cur_pos, 10);
2021                 } else if (!strncmp(cur_pos, "FLAGS ", 6)) {
2022                         cur_pos += 6;
2023                         if (*cur_pos != '(') {
2024                                 g_warning("*cur_pos != '('\n");
2025                                 procmsg_msginfo_free(msginfo);
2026                                 return NULL;
2027                         }
2028                         cur_pos++;
2029                         PARSE_ONE_ELEMENT(')');
2030                         imap_flags = imap_parse_flags(buf);
2031                 } else if (!strncmp(cur_pos, "RFC822.SIZE ", 12)) {
2032                         cur_pos += 12;
2033                         size = strtol(cur_pos, &cur_pos, 10);
2034                 } else if (!strncmp(cur_pos, "RFC822.HEADER ", 14)) {
2035                         gchar *headers;
2036
2037                         cur_pos += 14;
2038                         cur_pos = imap_get_header(sock, cur_pos, &headers,
2039                                                   line_str);
2040                         msginfo = procheader_parse_str(headers, flags, FALSE, FALSE);
2041                         g_free(headers);
2042                 } else {
2043                         g_warning("invalid FETCH response: %s\n", cur_pos);
2044                         break;
2045                 }
2046         }
2047
2048         if (msginfo) {
2049                 msginfo->msgnum = uid;
2050                 msginfo->size = size;
2051                 msginfo->flags.tmp_flags |= imap_flags.tmp_flags;
2052                 msginfo->flags.perm_flags = imap_flags.perm_flags;
2053         }
2054
2055         return msginfo;
2056 }
2057
2058 gint imap_msg_set_perm_flags(MsgInfo *msginfo, MsgPermFlags flags)
2059 {
2060         Folder *folder;
2061         IMAPSession *session;
2062         IMAPFlags iflags = 0;
2063         gint ok = IMAP_SUCCESS;
2064
2065         g_return_val_if_fail(msginfo != NULL, -1);
2066         g_return_val_if_fail(MSG_IS_IMAP(msginfo->flags), -1);
2067         g_return_val_if_fail(msginfo->folder != NULL, -1);
2068         g_return_val_if_fail(msginfo->folder->folder != NULL, -1);
2069
2070         folder = msginfo->folder->folder;
2071         g_return_val_if_fail(folder->type == F_IMAP, -1);
2072
2073         session = imap_session_get(folder);
2074         if (!session) return -1;
2075
2076         if (flags & MSG_MARKED)  iflags |= IMAP_FLAG_FLAGGED;
2077         if (flags & MSG_REPLIED) iflags |= IMAP_FLAG_ANSWERED;
2078         if (iflags) {
2079                 ok = imap_set_message_flags(session, msginfo->msgnum,
2080                                             msginfo->msgnum, iflags, TRUE);
2081                 if (ok != IMAP_SUCCESS) return ok;
2082         }
2083
2084         if (flags & MSG_UNREAD)
2085                 ok = imap_set_message_flags(session, msginfo->msgnum,
2086                                             msginfo->msgnum, IMAP_FLAG_SEEN,
2087                                             FALSE);
2088         return ok;
2089 }
2090
2091 gint imap_msg_unset_perm_flags(MsgInfo *msginfo, MsgPermFlags flags)
2092 {
2093         Folder *folder;
2094         IMAPSession *session;
2095         IMAPFlags iflags = 0;
2096         gint ok = IMAP_SUCCESS;
2097
2098         g_return_val_if_fail(msginfo != NULL, -1);
2099         g_return_val_if_fail(MSG_IS_IMAP(msginfo->flags), -1);
2100         g_return_val_if_fail(msginfo->folder != NULL, -1);
2101         g_return_val_if_fail(msginfo->folder->folder != NULL, -1);
2102
2103         folder = msginfo->folder->folder;
2104         g_return_val_if_fail(folder->type == F_IMAP, -1);
2105
2106         session = imap_session_get(folder);
2107         if (!session) return -1;
2108
2109         if (flags & MSG_MARKED)  iflags |= IMAP_FLAG_FLAGGED;
2110         if (flags & MSG_REPLIED) iflags |= IMAP_FLAG_ANSWERED;
2111         if (iflags) {
2112                 ok = imap_set_message_flags(session, msginfo->msgnum,
2113                                             msginfo->msgnum, iflags, FALSE);
2114                 if (ok != IMAP_SUCCESS) return ok;
2115         }
2116
2117         if (flags & MSG_UNREAD)
2118                 ok = imap_set_message_flags(session, msginfo->msgnum,
2119                                             msginfo->msgnum, IMAP_FLAG_SEEN,
2120                                             TRUE);
2121         return ok;
2122 }
2123
2124 static gint imap_set_message_flags(IMAPSession *session,
2125                                    guint32 first_uid,
2126                                    guint32 last_uid,
2127                                    IMAPFlags flags,
2128                                    gboolean is_set)
2129 {
2130         GString *buf;
2131         gint ok;
2132
2133         buf = g_string_new(is_set ? "+FLAGS (" : "-FLAGS (");
2134
2135         if (IMAP_IS_SEEN(flags))        g_string_append(buf, "\\Seen ");
2136         if (IMAP_IS_ANSWERED(flags))    g_string_append(buf, "\\Answered ");
2137         if (IMAP_IS_FLAGGED(flags))     g_string_append(buf, "\\Flagged ");
2138         if (IMAP_IS_DELETED(flags))     g_string_append(buf, "\\Deleted ");
2139         if (IMAP_IS_DRAFT(flags))       g_string_append(buf, "\\Draft");
2140
2141         if (buf->str[buf->len - 1] == ' ')
2142                 g_string_truncate(buf, buf->len - 1);
2143
2144         g_string_append_c(buf, ')');
2145
2146         ok = imap_cmd_store(SESSION(session)->sock, first_uid, last_uid,
2147                             buf->str);
2148         g_string_free(buf, TRUE);
2149
2150         return ok;
2151 }
2152
2153 static gint imap_select(IMAPSession *session, IMAPFolder *folder,
2154                         const gchar *path,
2155                         gint *exists, gint *recent, gint *unseen,
2156                         guint32 *uid_validity)
2157 {
2158         gchar *real_path;
2159         gint ok;
2160         gint exists_, recent_, unseen_, uid_validity_;
2161
2162         if (!exists || !recent || !unseen || !uid_validity) {
2163                 if (session->mbox && strcmp(session->mbox, path) == 0)
2164                         return IMAP_SUCCESS;
2165                 exists = &exists_;
2166                 recent = &recent_;
2167                 unseen = &unseen_;
2168                 uid_validity = &uid_validity_;
2169         }
2170
2171         g_free(session->mbox);
2172         session->mbox = NULL;
2173
2174         real_path = imap_get_real_path(folder, path);
2175         ok = imap_cmd_select(SESSION(session)->sock, real_path,
2176                              exists, recent, unseen, uid_validity);
2177         if (ok != IMAP_SUCCESS)
2178                 log_warning(_("can't select folder: %s\n"), real_path);
2179         else
2180                 session->mbox = g_strdup(path);
2181         g_free(real_path);
2182
2183         return ok;
2184 }
2185
2186 #define THROW(err) { ok = err; goto catch; }
2187
2188 static gint imap_get_uid(IMAPSession *session, gint msgnum, guint32 *uid)
2189 {
2190         gint ok;
2191         GPtrArray *argbuf;
2192         gchar *str;
2193         gint num;
2194
2195         *uid = 0;
2196         argbuf = g_ptr_array_new();
2197
2198         imap_cmd_gen_send(SESSION(session)->sock, "FETCH %d (UID)", msgnum);
2199         if ((ok = imap_cmd_ok(SESSION(session)->sock, argbuf)) != IMAP_SUCCESS)
2200                 THROW(ok);
2201
2202         str = search_array_contain_str(argbuf, "FETCH");
2203         if (!str) THROW(IMAP_ERROR);
2204
2205         if (sscanf(str, "%d FETCH (UID %d)", &num, uid) != 2 ||
2206             num != msgnum) {
2207                 g_warning("imap_get_uid(): invalid FETCH line.\n");
2208                 THROW(IMAP_ERROR);
2209         }
2210
2211 catch:
2212         ptr_array_free_strings(argbuf);
2213         g_ptr_array_free(argbuf, TRUE);
2214
2215         return ok;
2216 }
2217
2218 static gint imap_status(IMAPSession *session, IMAPFolder *folder,
2219                         const gchar *path,
2220                         gint *messages, gint *recent,
2221                         guint32 *uid_next, guint32 *uid_validity,
2222                         gint *unseen)
2223 {
2224         gchar *real_path;
2225         gchar *real_path_;
2226         gint ok;
2227         GPtrArray *argbuf;
2228         gchar *str;
2229
2230         *messages = *recent = *uid_next = *uid_validity = *unseen = 0;
2231
2232         argbuf = g_ptr_array_new();
2233
2234         real_path = imap_get_real_path(folder, path);
2235         QUOTE_IF_REQUIRED(real_path_, real_path);
2236         imap_cmd_gen_send(SESSION(session)->sock, "STATUS %s "
2237                           "(MESSAGES RECENT UIDNEXT UIDVALIDITY UNSEEN)",
2238                           real_path_);
2239
2240         ok = imap_cmd_ok(SESSION(session)->sock, argbuf);
2241         if (ok != IMAP_SUCCESS) THROW(ok);
2242
2243         str = search_array_str(argbuf, "STATUS");
2244         if (!str) THROW(IMAP_ERROR);
2245
2246         str = strchr(str, '(');
2247         if (!str) THROW(IMAP_ERROR);
2248         str++;
2249         while (*str != '\0' && *str != ')') {
2250                 while (*str == ' ') str++;
2251
2252                 if (!strncmp(str, "MESSAGES ", 9)) {
2253                         str += 9;
2254                         *messages = strtol(str, &str, 10);
2255                 } else if (!strncmp(str, "RECENT ", 7)) {
2256                         str += 7;
2257                         *recent = strtol(str, &str, 10);
2258                 } else if (!strncmp(str, "UIDNEXT ", 8)) {
2259                         str += 8;
2260                         *uid_next = strtoul(str, &str, 10);
2261                 } else if (!strncmp(str, "UIDVALIDITY ", 12)) {
2262                         str += 12;
2263                         *uid_validity = strtoul(str, &str, 10);
2264                 } else if (!strncmp(str, "UNSEEN ", 7)) {
2265                         str += 7;
2266                         *unseen = strtol(str, &str, 10);
2267                 } else {
2268                         g_warning("invalid STATUS response: %s\n", str);
2269                         break;
2270                 }
2271         }
2272
2273 catch:
2274         g_free(real_path);
2275         ptr_array_free_strings(argbuf);
2276         g_ptr_array_free(argbuf, TRUE);
2277
2278         return ok;
2279 }
2280
2281 #undef THROW
2282
2283
2284 /* low-level IMAP4rev1 commands */
2285
2286 static gint imap_cmd_login(SockInfo *sock,
2287                            const gchar *user, const gchar *pass)
2288 {
2289         gchar *user_, *pass_;
2290         gint ok;
2291
2292         QUOTE_IF_REQUIRED(user_, user);
2293         QUOTE_IF_REQUIRED(pass_, pass);
2294         imap_cmd_gen_send(sock, "LOGIN %s %s", user_, pass_);
2295
2296         ok = imap_cmd_ok(sock, NULL);
2297         if (ok != IMAP_SUCCESS)
2298                 log_warning(_("IMAP4 login failed.\n"));
2299
2300         return ok;
2301 }
2302
2303 static gint imap_cmd_logout(SockInfo *sock)
2304 {
2305         imap_cmd_gen_send(sock, "LOGOUT");
2306         return imap_cmd_ok(sock, NULL);
2307 }
2308
2309 /* Send a NOOP, and examine the server's response to see whether this
2310  * connection is pre-authenticated or not. */
2311 static gint imap_greeting(SockInfo *sock, gboolean *is_preauth)
2312 {
2313         GPtrArray *argbuf;
2314         gint r;
2315
2316         imap_cmd_gen_send(sock, "NOOP");
2317         argbuf = g_ptr_array_new(); /* will hold messages sent back */
2318         r = imap_cmd_ok(sock, argbuf);
2319         *is_preauth = search_array_starts(argbuf, "PREAUTH") != NULL;
2320
2321         return r;
2322 }
2323
2324 static gint imap_cmd_noop(SockInfo *sock)
2325 {
2326         imap_cmd_gen_send(sock, "NOOP");
2327         return imap_cmd_ok(sock, NULL);
2328 }
2329
2330 static gint imap_cmd_starttls(SockInfo *sock)
2331 {
2332         imap_cmd_gen_send(sock, "STARTTLS");
2333         return imap_cmd_ok(sock, NULL);
2334 }
2335
2336 #define THROW(err) { ok = err; goto catch; }
2337
2338 static gint imap_cmd_namespace(SockInfo *sock, gchar **ns_str)
2339 {
2340         gint ok;
2341         GPtrArray *argbuf;
2342         gchar *str;
2343
2344         argbuf = g_ptr_array_new();
2345
2346         imap_cmd_gen_send(sock, "NAMESPACE");
2347         if ((ok = imap_cmd_ok(sock, argbuf)) != IMAP_SUCCESS) THROW(ok);
2348
2349         str = search_array_str(argbuf, "NAMESPACE");
2350         if (!str) THROW(IMAP_ERROR);
2351
2352         *ns_str = g_strdup(str);
2353
2354 catch:
2355         ptr_array_free_strings(argbuf);
2356         g_ptr_array_free(argbuf, TRUE);
2357
2358         return ok;
2359 }
2360
2361 #undef THROW
2362
2363 static gint imap_cmd_list(SockInfo *sock, const gchar *ref,
2364                           const gchar *mailbox, GPtrArray *argbuf)
2365 {
2366         gchar *ref_, *mailbox_;
2367
2368         if (!ref) ref = "\"\"";
2369         if (!mailbox) mailbox = "\"\"";
2370
2371         QUOTE_IF_REQUIRED(ref_, ref);
2372         QUOTE_IF_REQUIRED(mailbox_, mailbox);
2373         imap_cmd_gen_send(sock, "LIST %s %s", ref_, mailbox_);
2374
2375         return imap_cmd_ok(sock, argbuf);
2376 }
2377
2378 #define THROW goto catch
2379
2380 static gint imap_cmd_do_select(SockInfo *sock, const gchar *folder,
2381                                gboolean examine,
2382                                gint *exists, gint *recent, gint *unseen,
2383                                guint32 *uid_validity)
2384 {
2385         gint ok;
2386         gchar *resp_str;
2387         GPtrArray *argbuf;
2388         gchar *select_cmd;
2389         gchar *folder_;
2390
2391         *exists = *recent = *unseen = *uid_validity = 0;
2392         argbuf = g_ptr_array_new();
2393
2394         if (examine)
2395                 select_cmd = "EXAMINE";
2396         else
2397                 select_cmd = "SELECT";
2398
2399         QUOTE_IF_REQUIRED(folder_, folder);
2400         imap_cmd_gen_send(sock, "%s %s", select_cmd, folder_);
2401
2402         if ((ok = imap_cmd_ok(sock, argbuf)) != IMAP_SUCCESS) THROW;
2403
2404         resp_str = search_array_contain_str(argbuf, "EXISTS");
2405         if (resp_str) {
2406                 if (sscanf(resp_str,"%d EXISTS", exists) != 1) {
2407                         g_warning("imap_cmd_select(): invalid EXISTS line.\n");
2408                         THROW;
2409                 }
2410         }
2411
2412         resp_str = search_array_contain_str(argbuf, "RECENT");
2413         if (resp_str) {
2414                 if (sscanf(resp_str, "%d RECENT", recent) != 1) {
2415                         g_warning("imap_cmd_select(): invalid RECENT line.\n");
2416                         THROW;
2417                 }
2418         }
2419
2420         resp_str = search_array_contain_str(argbuf, "UIDVALIDITY");
2421         if (resp_str) {
2422                 if (sscanf(resp_str, "OK [UIDVALIDITY %u] ", uid_validity)
2423                     != 1) {
2424                         g_warning("imap_cmd_select(): invalid UIDVALIDITY line.\n");
2425                         THROW;
2426                 }
2427         }
2428
2429         resp_str = search_array_contain_str(argbuf, "UNSEEN");
2430         if (resp_str) {
2431                 if (sscanf(resp_str, "OK [UNSEEN %d] ", unseen) != 1) {
2432                         g_warning("imap_cmd_select(): invalid UNSEEN line.\n");
2433                         THROW;
2434                 }
2435         }
2436
2437 catch:
2438         ptr_array_free_strings(argbuf);
2439         g_ptr_array_free(argbuf, TRUE);
2440
2441         return ok;
2442 }
2443
2444 static gint imap_cmd_select(SockInfo *sock, const gchar *folder,
2445                             gint *exists, gint *recent, gint *unseen,
2446                             guint32 *uid_validity)
2447 {
2448         return imap_cmd_do_select(sock, folder, FALSE,
2449                                   exists, recent, unseen, uid_validity);
2450 }
2451
2452 static gint imap_cmd_examine(SockInfo *sock, const gchar *folder,
2453                              gint *exists, gint *recent, gint *unseen,
2454                              guint32 *uid_validity)
2455 {
2456         return imap_cmd_do_select(sock, folder, TRUE,
2457                                   exists, recent, unseen, uid_validity);
2458 }
2459
2460 #undef THROW
2461
2462 static gint imap_cmd_create(SockInfo *sock, const gchar *folder)
2463 {
2464         gchar *folder_;
2465
2466         QUOTE_IF_REQUIRED(folder_, folder);
2467         imap_cmd_gen_send(sock, "CREATE %s", folder_);
2468
2469         return imap_cmd_ok(sock, NULL);
2470 }
2471
2472 static gint imap_cmd_rename(SockInfo *sock, const gchar *old_folder,
2473                             const gchar *new_folder)
2474 {
2475         gchar *old_folder_, *new_folder_;
2476
2477         QUOTE_IF_REQUIRED(old_folder_, old_folder);
2478         QUOTE_IF_REQUIRED(new_folder_, new_folder);
2479         imap_cmd_gen_send(sock, "RENAME %s %s", old_folder_, new_folder_);
2480
2481         return imap_cmd_ok(sock, NULL);
2482 }
2483
2484 static gint imap_cmd_delete(SockInfo *sock, const gchar *folder)
2485 {
2486         gchar *folder_;
2487
2488         QUOTE_IF_REQUIRED(folder_, folder);
2489         imap_cmd_gen_send(sock, "DELETE %s", folder_);
2490
2491         return imap_cmd_ok(sock, NULL);
2492 }
2493
2494 static gint imap_cmd_fetch(SockInfo *sock, guint32 uid, const gchar *filename)
2495 {
2496         gint ok;
2497         gchar buf[IMAPBUFSIZE];
2498         gchar *cur_pos;
2499         gchar size_str[32];
2500         glong size_num;
2501
2502         g_return_val_if_fail(filename != NULL, IMAP_ERROR);
2503
2504         imap_cmd_gen_send(sock, "UID FETCH %d BODY[]", uid);
2505
2506         while ((ok = imap_cmd_gen_recv(sock, buf, sizeof(buf)))
2507                == IMAP_SUCCESS) {
2508                 if (buf[0] != '*' || buf[1] != ' ')
2509                         return IMAP_ERROR;
2510                 if (strstr(buf, "FETCH") != NULL)
2511                         break;
2512         }
2513         if (ok != IMAP_SUCCESS)
2514                 return ok;
2515
2516         cur_pos = strchr(buf, '{');
2517         g_return_val_if_fail(cur_pos != NULL, IMAP_ERROR);
2518         cur_pos = strchr_cpy(cur_pos + 1, '}', size_str, sizeof(size_str));
2519         g_return_val_if_fail(cur_pos != NULL, IMAP_ERROR);
2520         size_num = atol(size_str);
2521
2522         if (*cur_pos != '\0') return IMAP_ERROR;
2523
2524         if (recv_bytes_write_to_file(sock, size_num, filename) != 0)
2525                 return IMAP_ERROR;
2526
2527         if (imap_cmd_gen_recv(sock, buf, sizeof(buf)) != IMAP_SUCCESS)
2528                 return IMAP_ERROR;
2529
2530         if (buf[0] == '\0' || buf[strlen(buf) - 1] != ')')
2531                 return IMAP_ERROR;
2532
2533         ok = imap_cmd_ok(sock, NULL);
2534
2535         return ok;
2536 }
2537
2538 static gint imap_cmd_append(SockInfo *sock, const gchar *destfolder,
2539                             const gchar *file)
2540 {
2541         gint ok;
2542         gint size;
2543         gchar *destfolder_;
2544         gchar buf[BUFFSIZE];
2545         FILE *fp;
2546
2547         g_return_val_if_fail(file != NULL, IMAP_ERROR);
2548
2549         size = get_file_size_as_crlf(file);
2550         if ((fp = fopen(file, "rb")) == NULL) {
2551                 FILE_OP_ERROR(file, "fopen");
2552                 return -1;
2553         }
2554         QUOTE_IF_REQUIRED(destfolder_, destfolder);
2555         imap_cmd_gen_send(sock, "APPEND %s (\\Seen) {%d}", destfolder_, size);
2556
2557         ok = imap_cmd_gen_recv(sock, buf, sizeof(buf));
2558         if (ok != IMAP_SUCCESS || buf[0] != '+' || buf[1] != ' ') {
2559                 log_warning(_("can't append %s to %s\n"), file, destfolder_);
2560                 fclose(fp);
2561                 return IMAP_ERROR;
2562         }
2563
2564         log_print("IMAP4> %s\n", _("(sending file...)"));
2565
2566         while (fgets(buf, sizeof(buf), fp) != NULL) {
2567                 strretchomp(buf);
2568                 if (sock_puts(sock, buf) < 0) {
2569                         fclose(fp);
2570                         sock_close(sock);
2571                         return -1;
2572                 }
2573         }
2574
2575         if (ferror(fp)) {
2576                 FILE_OP_ERROR(file, "fgets");
2577                 fclose(fp);
2578                 sock_close(sock);
2579                 return -1;
2580         }
2581
2582         sock_puts(sock, "");
2583
2584         fclose(fp);
2585         return imap_cmd_ok(sock, NULL);
2586 }
2587
2588 static gint imap_cmd_copy(SockInfo *sock, guint32 uid, const gchar *destfolder)
2589 {
2590         gint ok;
2591         gchar *destfolder_;
2592
2593         g_return_val_if_fail(destfolder != NULL, IMAP_ERROR);
2594
2595         QUOTE_IF_REQUIRED(destfolder_, destfolder);
2596         imap_cmd_gen_send(sock, "UID COPY %d %s", uid, destfolder_);
2597
2598         ok = imap_cmd_ok(sock, NULL);
2599         if (ok != IMAP_SUCCESS) {
2600                 log_warning(_("can't copy %d to %s\n"), uid, destfolder_);
2601                 return -1;
2602         }
2603
2604         return ok;
2605 }
2606
2607 gint imap_cmd_envelope(SockInfo *sock, guint32 first_uid, guint32 last_uid)
2608 {
2609         imap_cmd_gen_send
2610                 (sock, "UID FETCH %d:%d (UID FLAGS RFC822.SIZE RFC822.HEADER)",
2611                  first_uid, last_uid);
2612
2613         return IMAP_SUCCESS;
2614 }
2615
2616 static gint imap_cmd_store(SockInfo *sock, guint32 first_uid, guint32 last_uid,
2617                            gchar *sub_cmd)
2618 {
2619         gint ok;
2620
2621         imap_cmd_gen_send(sock, "UID STORE %d:%d %s",
2622                           first_uid, last_uid, sub_cmd);
2623
2624         if ((ok = imap_cmd_ok(sock, NULL)) != IMAP_SUCCESS) {
2625                 log_warning(_("error while imap command: STORE %d:%d %s\n"),
2626                             first_uid, last_uid, sub_cmd);
2627                 return ok;
2628         }
2629
2630         return IMAP_SUCCESS;
2631 }
2632
2633 static gint imap_cmd_expunge(SockInfo *sock)
2634 {
2635         gint ok;
2636
2637         imap_cmd_gen_send(sock, "EXPUNGE");
2638         if ((ok = imap_cmd_ok(sock, NULL)) != IMAP_SUCCESS) {
2639                 log_warning(_("error while imap command: EXPUNGE\n"));
2640                 return ok;
2641         }
2642
2643         return IMAP_SUCCESS;
2644 }
2645
2646 static gint imap_cmd_ok(SockInfo *sock, GPtrArray *argbuf)
2647 {
2648         gint ok;
2649         gchar buf[IMAPBUFSIZE];
2650         gint cmd_num;
2651         gchar cmd_status[IMAPBUFSIZE];
2652
2653         while ((ok = imap_cmd_gen_recv(sock, buf, sizeof(buf)))
2654                == IMAP_SUCCESS) {
2655                 if (buf[0] == '*' && buf[1] == ' ') {
2656                         if (argbuf)
2657                                 g_ptr_array_add(argbuf, g_strdup(buf + 2));
2658                         continue;
2659                 }
2660
2661                 if (sscanf(buf, "%d %s", &cmd_num, cmd_status) < 2)
2662                         return IMAP_ERROR;
2663                 else if (cmd_num == imap_cmd_count &&
2664                          !strcmp(cmd_status, "OK")) {
2665                         if (argbuf)
2666                                 g_ptr_array_add(argbuf, g_strdup(buf));
2667                         return IMAP_SUCCESS;
2668                 } else
2669                         return IMAP_ERROR;
2670         }
2671
2672         return ok;
2673 }
2674
2675 static void imap_cmd_gen_send(SockInfo *sock, const gchar *format, ...)
2676 {
2677         gchar buf[IMAPBUFSIZE];
2678         gchar tmp[IMAPBUFSIZE];
2679         gchar *p;
2680         va_list args;
2681
2682         va_start(args, format);
2683         g_vsnprintf(tmp, sizeof(tmp), format, args);
2684         va_end(args);
2685
2686         imap_cmd_count++;
2687
2688         g_snprintf(buf, sizeof(buf), "%d %s\r\n", imap_cmd_count, tmp);
2689         if (!strncasecmp(tmp, "LOGIN ", 6) && (p = strchr(tmp + 6, ' '))) {
2690                 *p = '\0';
2691                 log_print("IMAP4> %d %s ********\n", imap_cmd_count, tmp);
2692         } else
2693                 log_print("IMAP4> %d %s\n", imap_cmd_count, tmp);
2694
2695         sock_write(sock, buf, strlen(buf));
2696 }
2697
2698 static gint imap_cmd_gen_recv(SockInfo *sock, gchar *buf, gint size)
2699 {
2700         if (sock_gets(sock, buf, size) == -1)
2701                 return IMAP_SOCKET;
2702
2703         strretchomp(buf);
2704
2705         log_print("IMAP4< %s\n", buf);
2706
2707         return IMAP_SUCCESS;
2708 }
2709
2710
2711 /* misc utility functions */
2712
2713 static gchar *strchr_cpy(const gchar *src, gchar ch, gchar *dest, gint len)
2714 {
2715         gchar *tmp;
2716
2717         dest[0] = '\0';
2718         tmp = strchr(src, ch);
2719         if (!tmp)
2720                 return NULL;
2721
2722         memcpy(dest, src, MIN(tmp - src, len - 1));
2723         dest[MIN(tmp - src, len - 1)] = '\0';
2724
2725         return tmp + 1;
2726 }
2727
2728 static gchar *get_quoted(const gchar *src, gchar ch, gchar *dest, gint len)
2729 {
2730         const gchar *p = src;
2731         gint n = 0;
2732
2733         g_return_val_if_fail(*p == ch, NULL);
2734
2735         *dest = '\0';
2736         p++;
2737
2738         while (*p != '\0' && *p != ch) {
2739                 if (n < len - 1) {
2740                         if (*p == '\\' && *(p + 1) != '\0')
2741                                 p++;
2742                         *dest++ = *p++;
2743                 } else
2744                         p++;
2745                 n++;
2746         }
2747
2748         *dest = '\0';
2749         return (gchar *)(*p == ch ? p + 1 : p);
2750 }
2751
2752 static gchar *search_array_starts(GPtrArray *array, const gchar *str)
2753 {
2754         gint i;
2755         size_t len;
2756
2757         g_return_val_if_fail(str != NULL, NULL);
2758         len = strlen(str);
2759         for (i = 0; i < array->len; i++) {
2760                 gchar *tmp;
2761                 tmp = g_ptr_array_index(array, i);
2762                 if (strncmp(tmp, str, len) == 0)
2763                         return tmp;
2764         }
2765         return NULL;
2766 }
2767
2768 static gchar *search_array_contain_str(GPtrArray *array, gchar *str)
2769 {
2770         gint i;
2771
2772         for (i = 0; i < array->len; i++) {
2773                 gchar *tmp;
2774
2775                 tmp = g_ptr_array_index(array, i);
2776                 if (strstr(tmp, str) != NULL)
2777                         return tmp;
2778         }
2779
2780         return NULL;
2781 }
2782
2783 static gchar *search_array_str(GPtrArray *array, gchar *str)
2784 {
2785         gint i;
2786         gint len;
2787
2788         len = strlen(str);
2789
2790         for (i = 0; i < array->len; i++) {
2791                 gchar *tmp;
2792
2793                 tmp = g_ptr_array_index(array, i);
2794                 if (!strncmp(tmp, str, len))
2795                         return tmp;
2796         }
2797
2798         return NULL;
2799 }
2800
2801 static void imap_path_separator_subst(gchar *str, gchar separator)
2802 {
2803         gchar *p;
2804         gboolean in_escape = FALSE;
2805
2806         if (!separator || separator == '/') return;
2807
2808         for (p = str; *p != '\0'; p++) {
2809                 if (*p == '/' && !in_escape)
2810                         *p = separator;
2811                 else if (*p == '&' && *(p + 1) != '-' && !in_escape)
2812                         in_escape = TRUE;
2813                 else if (*p == '-' && in_escape)
2814                         in_escape = FALSE;
2815         }
2816 }
2817
2818 static gchar *imap_modified_utf7_to_locale(const gchar *mutf7_str)
2819 {
2820 #if !HAVE_LIBJCONV
2821         return g_strdup(mutf7_str);
2822 #else
2823         static iconv_t cd = (iconv_t)-1;
2824         static gboolean iconv_ok = TRUE;
2825         GString *norm_utf7;
2826         gchar *norm_utf7_p;
2827         size_t norm_utf7_len;
2828         const gchar *p;
2829         gchar *to_str, *to_p;
2830         size_t to_len;
2831         gboolean in_escape = FALSE;
2832
2833         if (!iconv_ok) return g_strdup(mutf7_str);
2834
2835         if (cd == (iconv_t)-1) {
2836                 cd = iconv_open(conv_get_current_charset_str(), "UTF-7");
2837                 if (cd == (iconv_t)-1) {
2838                         g_warning(_("iconv cannot convert UTF-7 to %s\n"),
2839                                   conv_get_current_charset_str());
2840                         iconv_ok = FALSE;
2841                         return g_strdup(mutf7_str);
2842                 }
2843         }
2844
2845         norm_utf7 = g_string_new(NULL);
2846
2847         for (p = mutf7_str; *p != '\0'; p++) {
2848                 /* replace: '&'  -> '+',
2849                             "&-" -> '&',
2850                             escaped ','  -> '/' */
2851                 if (!in_escape && *p == '&') {
2852                         if (*(p + 1) != '-') {
2853                                 g_string_append_c(norm_utf7, '+');
2854                                 in_escape = TRUE;
2855                         } else {
2856                                 g_string_append_c(norm_utf7, '&');
2857                                 p++;
2858                         }
2859                 } else if (in_escape && *p == ',') {
2860                         g_string_append_c(norm_utf7, '/');
2861                 } else if (in_escape && *p == '-') {
2862                         g_string_append_c(norm_utf7, '-');
2863                         in_escape = FALSE;
2864                 } else {
2865                         g_string_append_c(norm_utf7, *p);
2866                 }
2867         }
2868
2869         norm_utf7_p = norm_utf7->str;
2870         norm_utf7_len = norm_utf7->len;
2871         to_len = strlen(mutf7_str) * 5;
2872         to_p = to_str = g_malloc(to_len + 1);
2873
2874         if (iconv(cd, &norm_utf7_p, &norm_utf7_len, &to_p, &to_len) == -1) {
2875                 g_warning(_("iconv cannot convert UTF-7 to %s\n"),
2876                           conv_get_current_charset_str());
2877                 g_string_free(norm_utf7, TRUE);
2878                 g_free(to_str);
2879                 return g_strdup(mutf7_str);
2880         }
2881
2882         /* second iconv() call for flushing */
2883         iconv(cd, NULL, NULL, &to_p, &to_len);
2884         g_string_free(norm_utf7, TRUE);
2885         *to_p = '\0';
2886
2887         return to_str;
2888 #endif /* !HAVE_LIBJCONV */
2889 }
2890
2891 static gchar *imap_locale_to_modified_utf7(const gchar *from)
2892 {
2893 #if !HAVE_LIBJCONV
2894         return g_strdup(from);
2895 #else
2896         static iconv_t cd = (iconv_t)-1;
2897         static gboolean iconv_ok = TRUE;
2898         gchar *norm_utf7, *norm_utf7_p;
2899         size_t from_len, norm_utf7_len;
2900         GString *to_str;
2901         gchar *from_tmp, *to, *p;
2902         gboolean in_escape = FALSE;
2903
2904         if (!iconv_ok) return g_strdup(from);
2905
2906         if (cd == (iconv_t)-1) {
2907                 cd = iconv_open("UTF-7", conv_get_current_charset_str());
2908                 if (cd == (iconv_t)-1) {
2909                         g_warning(_("iconv cannot convert %s to UTF-7\n"),
2910                                   conv_get_current_charset_str());
2911                         iconv_ok = FALSE;
2912                         return g_strdup(from);
2913                 }
2914         }
2915
2916         Xstrdup_a(from_tmp, from, return g_strdup(from));
2917         from_len = strlen(from);
2918         norm_utf7_len = from_len * 5;
2919         Xalloca(norm_utf7, norm_utf7_len + 1, return g_strdup(from));
2920         norm_utf7_p = norm_utf7;
2921
2922 #define IS_PRINT(ch) (isprint(ch) && isascii(ch))
2923
2924         while (from_len > 0) {
2925                 if (IS_PRINT(*from_tmp)) {
2926                         /* printable ascii char */
2927                         *norm_utf7_p = *from_tmp;
2928                         norm_utf7_p++;
2929                         from_tmp++;
2930                         from_len--;
2931                 } else {
2932                         size_t mblen;
2933
2934                         /* unprintable char: convert to UTF-7 */
2935                         for (mblen = 0;
2936                              !IS_PRINT(from_tmp[mblen]) && mblen < from_len;
2937                              mblen++)
2938                                 ;
2939                         from_len -= mblen;
2940                         if (iconv(cd, &from_tmp, &mblen,
2941                                   &norm_utf7_p, &norm_utf7_len) == -1) {
2942                                 g_warning(_("iconv cannot convert %s to UTF-7\n"),
2943                                           conv_get_current_charset_str());
2944                                 return g_strdup(from);
2945                         }
2946
2947                         /* second iconv() call for flushing */
2948                         iconv(cd, NULL, NULL, &norm_utf7_p, &norm_utf7_len);
2949                 }
2950         }
2951
2952 #undef IS_PRINT
2953
2954         *norm_utf7_p = '\0';
2955         to_str = g_string_new(NULL);
2956         for (p = norm_utf7; p < norm_utf7_p; p++) {
2957                 /* replace: '&' -> "&-",
2958                             '+' -> '&',
2959                             escaped '/' -> ',' */
2960                 if (!in_escape && *p == '&') {
2961                         g_string_append(to_str, "&-");
2962                 } else if (!in_escape && *p == '+') {
2963                         g_string_append_c(to_str, '&');
2964                         in_escape = TRUE;
2965                 } else if (in_escape && *p == '/') {
2966                         g_string_append_c(to_str, ',');
2967                 } else if (in_escape && *p == '-') {
2968                         in_escape = FALSE;
2969                         g_string_append_c(to_str, '-');
2970                 } else {
2971                         g_string_append_c(to_str, *p);
2972                 }
2973         }
2974
2975         if (in_escape) {
2976                 in_escape = FALSE;
2977                 g_string_append_c(to_str, '-');
2978         }
2979
2980         to = to_str->str;
2981         g_string_free(to_str, FALSE);
2982
2983         return to;
2984 #endif
2985 }
2986
2987 static gboolean imap_rename_folder_func(GNode *node, gpointer data)
2988 {
2989         FolderItem *item = node->data;
2990         gchar **paths = data;
2991         const gchar *oldpath = paths[0];
2992         const gchar *newpath = paths[1];
2993         gchar *base;
2994         gchar *new_itempath;
2995         gint oldpathlen;
2996
2997         oldpathlen = strlen(oldpath);
2998         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
2999                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
3000                 return TRUE;
3001         }
3002
3003         base = item->path + oldpathlen;
3004         while (*base == G_DIR_SEPARATOR) base++;
3005         if (*base == '\0')
3006                 new_itempath = g_strdup(newpath);
3007         else
3008                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
3009                                            NULL);
3010         g_free(item->path);
3011         item->path = new_itempath;
3012
3013         return FALSE;
3014 }