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 != '"' && strchr(str, ' ')) { \
  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                                          IMAPNameSpace  *namespace);
  85 static GSList *imap_parse_list          (IMAPSession    *session,
  86                                          const gchar    *real_path);
  87
  88 static void imap_create_missing_folders (Folder                 *folder);
  89 static FolderItem *imap_create_special_folder
  90                                         (Folder                 *folder,
  91                                          SpecialFolderItemType   stype,
  92                                          const gchar            *name);
  93
  94 static gint imap_do_copy                (Folder         *folder,
  95                                          FolderItem     *dest,
  96                                          MsgInfo        *msginfo,
  97                                          gboolean        remove_source);
  98 static gint imap_do_copy_msgs_with_dest (Folder         *folder,
  99                                          FolderItem     *dest,
 100                                          GSList         *msglist,
 101                                          gboolean        remove_source);
 102
 103 static GSList *imap_get_uncached_messages       (IMAPSession    *session,
 104                                                  FolderItem     *item,
 105                                                  guint32         first_uid,
 106                                                  guint32         last_uid);
 107 static GSList *imap_delete_cached_messages      (GSList         *mlist,
 108                                                  FolderItem     *item,
 109                                                  guint32         first_uid,
 110                                                  guint32         last_uid);
 111 static void imap_delete_all_cached_messages     (FolderItem     *item);
 112
 113 #if USE_SSL
 114 static SockInfo *imap_open              (const gchar    *server,
 115                                          gushort         port,
 116                                          gboolean        use_ssl);
 117 #else
 118 static SockInfo *imap_open              (const gchar    *server,
 119                                          gushort         port);
 120 #endif
 121
 122 static SockInfo *imap_open_tunnel(const gchar *server,
 123                                   const gchar *tunnelcmd);
 124
 125 static SockInfo *imap_init_sock(SockInfo *sock);
 126
 127 static gint imap_set_message_flags      (IMAPSession    *session,
 128                                          guint32         first_uid,
 129                                          guint32         last_uid,
 130                                          IMAPFlags       flag,
 131                                          gboolean        is_set);
 132 static gint imap_select                 (IMAPSession    *session,
 133                                          IMAPFolder     *folder,
 134                                          const gchar    *path,
 135                                          gint           *exists,
 136                                          gint           *recent,
 137                                          gint           *unseen,
 138                                          guint32        *uid_validity);
 139 static gint imap_get_uid                (IMAPSession    *session,
 140                                          gint            msgnum,
 141                                          guint32        *uid);
 142 static gint imap_status                 (IMAPSession    *session,
 143                                          IMAPFolder     *folder,
 144                                          const gchar    *path,
 145                                          gint           *messages,
 146                                          gint           *recent,
 147                                          guint32        *uid_next,
 148                                          guint32        *uid_validity,
 149                                          gint           *unseen);
 150
 151 static void imap_parse_namespace                (IMAPSession    *session,
 152                                                  IMAPFolder     *folder);
 153 static IMAPNameSpace *imap_find_namespace       (IMAPFolder     *folder,
 154                                                  const gchar    *path);
 155 static gchar *imap_get_real_path                (IMAPFolder     *folder,
 156                                                  const gchar    *path);
 157
 158 static gchar *imap_parse_atom           (SockInfo       *sock,
 159                                          gchar          *src,
 160                                          gchar          *dest,
 161                                          gint            dest_len,
 162                                          GString        *str);
 163 static gchar *imap_parse_one_address    (SockInfo       *sock,
 164                                          gchar          *start,
 165                                          gchar          *out_from_str,
 166                                          gchar          *out_fromname_str,
 167                                          GString        *str);
 168 static gchar *imap_parse_address        (SockInfo       *sock,
 169                                          gchar          *start,
 170                                          gchar         **out_from_str,
 171                                          gchar         **out_fromname_str,
 172                                          GString        *str);
 173 static MsgFlags imap_parse_flags        (const gchar    *flag_str);
 174 static MsgInfo *imap_parse_envelope     (SockInfo       *sock,
 175                                          GString        *line_str);
 176 static gint imap_greeting               (SockInfo *sock,
 177                                          gboolean *is_preauth);
 178
 179 /* low-level IMAP4rev1 commands */
 180 static gint imap_cmd_login      (SockInfo       *sock,
 181                                  const gchar    *user,
 182                                  const gchar    *pass);
 183 static gint imap_cmd_logout     (SockInfo       *sock);
 184 static gint imap_cmd_noop       (SockInfo       *sock);
 185 static gint imap_cmd_namespace  (SockInfo       *sock,
 186                                  gchar         **ns_str);
 187 static gint imap_cmd_list       (SockInfo       *sock,
 188                                  const gchar    *ref,
 189                                  const gchar    *mailbox,
 190                                  GPtrArray      *argbuf);
 191 static gint imap_cmd_do_select  (SockInfo       *sock,
 192                                  const gchar    *folder,
 193                                  gboolean        examine,
 194                                  gint           *exists,
 195                                  gint           *recent,
 196                                  gint           *unseen,
 197                                  guint32        *uid_validity);
 198 static gint imap_cmd_select     (SockInfo       *sock,
 199                                  const gchar    *folder,
 200                                  gint           *exists,
 201                                  gint           *recent,
 202                                  gint           *unseen,
 203                                  guint32        *uid_validity);
 204 static gint imap_cmd_examine    (SockInfo       *sock,
 205                                  const gchar    *folder,
 206                                  gint           *exists,
 207                                  gint           *recent,
 208                                  gint           *unseen,
 209                                  guint32        *uid_validity);
 210 static gint imap_cmd_create     (SockInfo       *sock,
 211                                  const gchar    *folder);
 212 static gint imap_cmd_rename     (SockInfo       *sock,
 213                                  const gchar    *oldfolder,
 214                                  const gchar    *newfolder);
 215 static gint imap_cmd_delete     (SockInfo       *sock,
 216                                  const gchar    *folder);
 217 static gint imap_cmd_envelope   (SockInfo       *sock,
 218                                  guint32         first_uid,
 219                                  guint32         last_uid);
 220 #if 0
 221 static gint imap_cmd_search     (SockInfo       *sock,
 222                                  GSList         *numlist);
 223 #endif
 224 static gint imap_cmd_fetch      (SockInfo       *sock,
 225                                  guint32         uid,
 226                                  const gchar    *filename);
 227 static gint imap_cmd_append     (SockInfo       *sock,
 228                                  const gchar    *destfolder,
 229                                  const gchar    *file);
 230 static gint imap_cmd_copy       (SockInfo       *sock,
 231                                  guint32         uid,
 232                                  const gchar    *destfolder);
 233 static gint imap_cmd_store      (SockInfo       *sock,
 234                                  guint32         first_uid,
 235                                  guint32         last_uid,
 236                                  gchar          *sub_cmd);
 237 static gint imap_cmd_expunge    (SockInfo       *sock);
 238
 239 static gint imap_cmd_ok         (SockInfo       *sock,
 240                                  GPtrArray      *argbuf);
 241 static void imap_cmd_gen_send   (SockInfo       *sock,
 242                                  const gchar    *format, ...);
 243 static gint imap_cmd_gen_recv   (SockInfo       *sock,
 244                                  gchar          *buf,
 245                                  gint            size);
 246
 247 /* misc utility functions */
 248 static gchar *strchr_cpy                        (const gchar    *src,
 249                                                  gchar           ch,
 250                                                  gchar          *dest,
 251                                                  gint            len);
 252 static gchar *get_quoted                        (const gchar    *src,
 253                                                  gchar           ch,
 254                                                  gchar          *dest,
 255                                                  gint            len);
 256 static gchar *search_array_contain_str          (GPtrArray      *array,
 257                                                  gchar          *str);
 258 static gchar *search_array_str                  (GPtrArray      *array,
 259                                                  gchar          *str);
 260 static gchar *search_array_starts               (GPtrArray *array,
 261                                                  const gchar *str);
 262 static void imap_path_separator_subst           (gchar          *str,
 263                                                  gchar           separator);
 264
 265 static gchar *imap_modified_utf7_to_locale      (const gchar    *mutf7_str);
 266 static gchar *imap_locale_to_modified_utf7      (const gchar    *from);
 267
 268 static gboolean imap_rename_folder_func         (GNode          *node,
 269                                                  gpointer        data);
 270
 271 Folder *imap_folder_new(const gchar *name, const gchar *path)
 272 {
 273         Folder *folder;
 274
 275         folder = (Folder *)g_new0(IMAPFolder, 1);
 276         imap_folder_init(folder, name, path);
 277
 278         return folder;
 279 }
 280
 281 void imap_folder_destroy(IMAPFolder *folder)
 282 {
 283         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 284 }
 285
 286 static void imap_folder_init(Folder *folder, const gchar *name,
 287                              const gchar *path)
 288 {
 289         folder_remote_folder_init(folder, name, path);
 290
 291         folder->type = F_IMAP;
 292
 293         folder->get_msg_list        = imap_get_msg_list;
 294         folder->fetch_msg           = imap_fetch_msg;
 295         folder->add_msg             = imap_add_msg;
 296         folder->move_msg            = imap_move_msg;
 297         folder->move_msgs_with_dest = imap_move_msgs_with_dest;
 298         folder->copy_msg            = imap_copy_msg;
 299         folder->copy_msgs_with_dest = imap_copy_msgs_with_dest;
 300         folder->remove_msg          = imap_remove_msg;
 301         folder->remove_all_msg      = imap_remove_all_msg;
 302         folder->is_msg_changed      = imap_is_msg_changed;
 303         folder->scan                = imap_scan_folder;
 304         folder->scan_tree           = imap_scan_tree;
 305         folder->create_tree         = imap_create_tree;
 306         folder->create_folder       = imap_create_folder;
 307         folder->rename_folder       = imap_rename_folder;
 308         folder->remove_folder       = imap_remove_folder;
 309 }
 310
 311 static IMAPSession *imap_session_get(Folder *folder)
 312 {
 313         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 314         gushort port;
 315
 316         g_return_val_if_fail(folder != NULL, NULL);
 317         g_return_val_if_fail(folder->type == F_IMAP, NULL);
 318         g_return_val_if_fail(folder->account != NULL, NULL);
 319
 320 #if USE_SSL
 321         port = folder->account->set_imapport ? folder->account->imapport
 322                 : folder->account->ssl_imap ? IMAPS_PORT : IMAP4_PORT;
 323 #else
 324         port = folder->account->set_imapport ? folder->account->imapport
 325                 : IMAP4_PORT;
 326 #endif
 327
 328         if (!rfolder->session) {
 329                 rfolder->session =
 330                         imap_session_new(folder->account);
 331                 if (rfolder->session) {
 332                         imap_parse_namespace(IMAP_SESSION(rfolder->session),
 333                                              IMAP_FOLDER(folder));
 334                         rfolder->session->last_access_time = time(NULL);
 335                 }
 336                 statusbar_pop_all();
 337                 return IMAP_SESSION(rfolder->session);
 338         }
 339
 340         /* I think the point of this code is to avoid sending a
 341          * keepalive if we've used the session recently and therefore
 342          * think it's still alive.  Unfortunately, most of the code
 343          * does not yet check for errors on the socket, and so if the
 344          * connection drops we don't notice until the timeout expires.
 345          * A better solution than sending a NOOP every time would be
 346          * for every command to be prepared to retry until it is
 347          * successfully sent. -- mbp */
 348         if (time(NULL) - rfolder->session->last_access_time < SESSION_TIMEOUT) {
 349                 rfolder->session->last_access_time = time(NULL);
 350                 statusbar_pop_all();
 351                 return IMAP_SESSION(rfolder->session);
 352         }
 353
 354         if (imap_cmd_noop(rfolder->session->sock) != IMAP_SUCCESS) {
 355                 log_warning(_("IMAP4 connection to %s:%d has been"
 356                               " disconnected. Reconnecting...\n"),
 357                             folder->account->recv_server, port);
 358                 session_destroy(rfolder->session);
 359                 rfolder->session =
 360                         imap_session_new(folder->account);
 361                 if (rfolder->session)
 362                         imap_parse_namespace(IMAP_SESSION(rfolder->session),
 363                                              IMAP_FOLDER(folder));
 364         }
 365
 366         if (rfolder->session)
 367                 rfolder->session->last_access_time = time(NULL);
 368         statusbar_pop_all();
 369         return IMAP_SESSION(rfolder->session);
 370 }
 371
 372 Session *imap_session_new(const PrefsAccount *account)
 373 {
 374         IMAPSession *session;
 375         SockInfo *imap_sock;
 376         gushort port;
 377         gchar *pass;
 378         gboolean is_preauth;
 379
 380 #ifdef USE_SSL
 381         /* FIXME: IMAP over SSL only... */
 382         gboolean use_ssl;
 383
 384         port = account->set_imapport ? account->imapport
 385                 : account->ssl_imap ? IMAPS_PORT : IMAP4_PORT;
 386         use_ssl = account->ssl_imap ? TRUE : FALSE;
 387 #else
 388         port = account->set_imapport ? account->imapport
 389                 : IMAP4_PORT;
 390 #endif
 391
 392         if (account->set_tunnelcmd) {
 393                 log_message(_("creating tunneled IMAP4 connection\n"));
 394                 if ((imap_sock = imap_open_tunnel(account->recv_server,
 395                                                   account->tunnelcmd)) == NULL)
 396                         return NULL;
 397         } else {
 398                 g_return_val_if_fail(account->recv_server != NULL, NULL);
 399
 400                 log_message(_("creating IMAP4 connection to %s:%d ...\n"),
 401                             account->recv_server, port);
 402
 403 #if USE_SSL
 404                 if ((imap_sock = imap_open(account->recv_server, port,
 405                                            use_ssl)) == NULL)
 406 #else
 407                 if ((imap_sock = imap_open(account->recv_server, port)) == NULL)
 408 #endif
 409                         return NULL;
 410         }
 411
 412         /* Only need to log in if the connection was not PREAUTH */
 413         imap_greeting(imap_sock, &is_preauth);
 414         log_message("IMAP connection is %s-authenticated\n",
 415                     (is_preauth) ? "pre" : "un");
 416         if (!is_preauth) {
 417                 g_return_val_if_fail(account->userid != NULL, NULL);
 418
 419                 pass = account->passwd;
 420                 if (!pass) {
 421                         gchar *tmp_pass;
 422                         tmp_pass = input_dialog_query_password(account->recv_server, account->userid);
 423                         if (!tmp_pass)
 424                                 return NULL;
 425                         Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return NULL;});
 426                         g_free(tmp_pass);
 427                 }
 428
 429                 if (imap_cmd_login(imap_sock, account->userid, pass) != IMAP_SUCCESS) {
 430                         imap_cmd_logout(imap_sock);
 431                         sock_close(imap_sock);
 432                         return NULL;
 433                 }
 434         }
 435
 436         session = g_new(IMAPSession, 1);
 437         SESSION(session)->type             = SESSION_IMAP;
 438         SESSION(session)->server           = g_strdup(account->recv_server);
 439         SESSION(session)->sock             = imap_sock;
 440         SESSION(session)->connected        = TRUE;
 441         SESSION(session)->phase            = SESSION_READY;
 442         SESSION(session)->last_access_time = time(NULL);
 443         SESSION(session)->data             = NULL;
 444         session->mbox = NULL;
 445
 446         session_list = g_list_append(session_list, session);
 447
 448         return SESSION(session);
 449 }
 450
 451 void imap_session_destroy(IMAPSession *session)
 452 {
 453         sock_close(SESSION(session)->sock);
 454         SESSION(session)->sock = NULL;
 455
 456         g_free(session->mbox);
 457
 458         session_list = g_list_remove(session_list, session);
 459 }
 460
 461 void imap_session_destroy_all(void)
 462 {
 463         while (session_list != NULL) {
 464                 IMAPSession *session = (IMAPSession *)session_list->data;
 465
 466                 imap_cmd_logout(SESSION(session)->sock);
 467                 session_destroy(SESSION(session));
 468         }
 469 }
 470
 471 #define THROW goto catch
 472
 473 GSList *imap_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 474 {
 475         GSList *mlist = NULL;
 476         IMAPSession *session;
 477         gint ok, exists = 0, recent = 0, unseen = 0;
 478         guint32 uid_validity = 0;
 479         guint32 first_uid = 0, last_uid = 0, begin;
 480
 481         g_return_val_if_fail(folder != NULL, NULL);
 482         g_return_val_if_fail(item != NULL, NULL);
 483         g_return_val_if_fail(folder->type == F_IMAP, NULL);
 484         g_return_val_if_fail(folder->account != NULL, NULL);
 485
 486         session = imap_session_get(folder);
 487
 488         if (!session) {
 489                 mlist = procmsg_read_cache(item, FALSE);
 490                 item->last_num = procmsg_get_last_num_in_cache(mlist);
 491                 procmsg_set_flags(mlist, item);
 492                 statusbar_pop_all();
 493                 return mlist;
 494         }
 495
 496         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 497                          &exists, &recent, &unseen, &uid_validity);
 498         if (ok != IMAP_SUCCESS) THROW;
 499         if (exists > 0) {
 500                 ok = imap_get_uid(session, 1, &first_uid);
 501                 if (ok != IMAP_SUCCESS) THROW;
 502                 if (1 != exists) {
 503                         ok = imap_get_uid(session, exists, &last_uid);
 504                         if (ok != IMAP_SUCCESS) THROW;
 505                 } else
 506                         last_uid = first_uid;
 507         } else {
 508                 imap_delete_all_cached_messages(item);
 509                 statusbar_pop_all();
 510                 return NULL;
 511         }
 512
 513         if (use_cache) {
 514                 guint32 cache_last;
 515
 516                 mlist = procmsg_read_cache(item, FALSE);
 517                 procmsg_set_flags(mlist, item);
 518                 cache_last = procmsg_get_last_num_in_cache(mlist);
 519
 520                 /* calculating the range of envelope to get */
 521                 if (item->mtime != uid_validity) {
 522                         /* mailbox is changed (get all) */
 523                         begin = first_uid;
 524                 } else if (last_uid < cache_last) {
 525                         /* mailbox is changed (get all) */
 526                         begin = first_uid;
 527                 } else if (last_uid == cache_last) {
 528                         /* mailbox unchanged (get none)*/
 529                         begin = 0;
 530                 } else {
 531                         begin = cache_last + 1;
 532                 }
 533
 534                 item->mtime = uid_validity;
 535
 536                 if (first_uid > 0 && last_uid > 0) {
 537                         mlist = imap_delete_cached_messages(mlist, item,
 538                                                             0, first_uid - 1);
 539                         mlist = imap_delete_cached_messages(mlist, item,
 540                                                             last_uid + 1,
 541                                                             UINT_MAX);
 542                 }
 543                 if (begin > 0)
 544                         mlist = imap_delete_cached_messages(mlist, item,
 545                                                             begin, UINT_MAX);
 546         } else {
 547                 imap_delete_all_cached_messages(item);
 548                 begin = first_uid;
 549         }
 550
 551         if (begin > 0 && begin <= last_uid) {
 552                 GSList *newlist;
 553                 newlist = imap_get_uncached_messages(session, item,
 554                                                      begin, last_uid);
 555                 mlist = g_slist_concat(mlist, newlist);
 556         }
 557
 558         item->last_num = last_uid;
 559
 560 catch:
 561         statusbar_pop_all();
 562         return mlist;
 563 }
 564
 565 #undef THROW
 566
 567 gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid)
 568 {
 569         gchar *path, *filename;
 570         IMAPSession *session;
 571         gint ok;
 572
 573         g_return_val_if_fail(folder != NULL, NULL);
 574         g_return_val_if_fail(item != NULL, NULL);
 575
 576         path = folder_item_get_path(item);
 577         if (!is_dir_exist(path))
 578                 make_dir_hier(path);
 579         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(uid), NULL);
 580         g_free(path);
 581
 582         if (is_file_exist(filename)) {
 583                 debug_print(_("message %d has been already cached.\n"), uid);
 584                 return filename;
 585         }
 586
 587         session = imap_session_get(folder);
 588         if (!session) {
 589                 g_free(filename);
 590                 return NULL;
 591         }
 592
 593         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 594                          NULL, NULL, NULL, NULL);
 595         statusbar_pop_all();
 596         if (ok != IMAP_SUCCESS) {
 597                 g_warning(_("can't select mailbox %s\n"), item->path);
 598                 g_free(filename);
 599                 return NULL;
 600         }
 601
 602         debug_print(_("getting message %d...\n"), uid);
 603         ok = imap_cmd_fetch(SESSION(session)->sock, (guint32)uid, filename);
 604
 605         statusbar_pop_all();
 606
 607         if (ok != IMAP_SUCCESS) {
 608                 g_warning(_("can't fetch message %d\n"), uid);
 609                 g_free(filename);
 610                 return NULL;
 611         }
 612
 613         return filename;
 614 }
 615
 616 gint imap_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 617                   gboolean remove_source)
 618 {
 619         gchar *destdir;
 620         IMAPSession *session;
 621         gint ok;
 622
 623         g_return_val_if_fail(folder != NULL, -1);
 624         g_return_val_if_fail(dest != NULL, -1);
 625         g_return_val_if_fail(file != NULL, -1);
 626
 627         session = imap_session_get(folder);
 628         if (!session) return -1;
 629
 630         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 631         ok = imap_cmd_append(SESSION(session)->sock, destdir, file);
 632         g_free(destdir);
 633
 634         if (ok != IMAP_SUCCESS) {
 635                 g_warning(_("can't append message %s\n"), file);
 636                 return -1;
 637         }
 638
 639         if (remove_source) {
 640                 if (unlink(file) < 0)
 641                         FILE_OP_ERROR(file, "unlink");
 642         }
 643
 644         return 0;
 645 }
 646
 647 static gint imap_do_copy(Folder *folder, FolderItem *dest, MsgInfo *msginfo,
 648                          gboolean remove_source)
 649 {
 650         gchar *destdir;
 651         IMAPSession *session;
 652         gint ok;
 653
 654         g_return_val_if_fail(folder != NULL, -1);
 655         g_return_val_if_fail(folder->type == F_IMAP, -1);
 656         g_return_val_if_fail(dest != NULL, -1);
 657         g_return_val_if_fail(msginfo != NULL, -1);
 658
 659         session = imap_session_get(folder);
 660         if (!session) return -1;
 661
 662         if (msginfo->folder == dest) {
 663                 g_warning(_("the src folder is identical to the dest.\n"));
 664                 return -1;
 665         }
 666
 667         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 668
 669         if (remove_source)
 670                 debug_print(_("Moving message %s%c%d to %s ...\n"),
 671                             msginfo->folder->path, G_DIR_SEPARATOR,
 672                             msginfo->msgnum, destdir);
 673         else
 674                 debug_print(_("Copying message %s%c%d to %s ...\n"),
 675                             msginfo->folder->path, G_DIR_SEPARATOR,
 676                             msginfo->msgnum, destdir);
 677
 678         ok = imap_cmd_copy(SESSION(session)->sock, msginfo->msgnum, destdir);
 679
 680         if (ok == IMAP_SUCCESS && remove_source) {
 681                 imap_set_message_flags(session, msginfo->msgnum, msginfo->msgnum,
 682                                        IMAP_FLAG_DELETED, TRUE);
 683                 ok = imap_cmd_expunge(SESSION(session)->sock);
 684         }
 685
 686         g_free(destdir);
 687         statusbar_pop_all();
 688
 689         if (ok == IMAP_SUCCESS)
 690                 return 0;
 691         else
 692                 return -1;
 693 }
 694
 695 static gint imap_do_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
 696                                         GSList *msglist,
 697                                         gboolean remove_source)
 698 {
 699         gchar *destdir;
 700         GSList *cur;
 701         MsgInfo *msginfo;
 702         IMAPSession *session;
 703         gint ok = IMAP_SUCCESS;
 704
 705         g_return_val_if_fail(folder != NULL, -1);
 706         g_return_val_if_fail(dest != NULL, -1);
 707         g_return_val_if_fail(msglist != NULL, -1);
 708
 709         session = imap_session_get(folder);
 710         if (!session) return -1;
 711
 712         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 713
 714         for (cur = msglist; cur != NULL; cur = cur->next) {
 715                 msginfo = (MsgInfo *)cur->data;
 716
 717                 if (msginfo->folder == dest) {
 718                         g_warning(_("the src folder is identical to the dest.\n"));
 719                         continue;
 720                 }
 721
 722                 if (remove_source)
 723                         debug_print(_("Moving message %s%c%d to %s ...\n"),
 724                                     msginfo->folder->path, G_DIR_SEPARATOR,
 725                                     msginfo->msgnum, destdir);
 726                 else
 727                         debug_print(_("Copying message %s%c%d to %s ...\n"),
 728                                     msginfo->folder->path, G_DIR_SEPARATOR,
 729                                     msginfo->msgnum, destdir);
 730
 731                 ok = imap_cmd_copy(SESSION(session)->sock, msginfo->msgnum,
 732                                    destdir);
 733
 734                 if (ok == IMAP_SUCCESS && remove_source) {
 735                         imap_set_message_flags
 736                                 (session, msginfo->msgnum, msginfo->msgnum,
 737                                  IMAP_FLAG_DELETED, TRUE);
 738                 }
 739         }
 740
 741         if (remove_source)
 742                 ok = imap_cmd_expunge(SESSION(session)->sock);
 743
 744         g_free(destdir);
 745         statusbar_pop_all();
 746
 747         if (ok == IMAP_SUCCESS)
 748                 return 0;
 749         else
 750                 return -1;
 751 }
 752
 753 gint imap_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 754 {
 755         gchar *srcfile;
 756         gint ret = 0;
 757
 758         g_return_val_if_fail(folder != NULL, -1);
 759         g_return_val_if_fail(dest != NULL, -1);
 760         g_return_val_if_fail(msginfo != NULL, -1);
 761         g_return_val_if_fail(msginfo->folder != NULL, -1);
 762
 763         if (folder == msginfo->folder->folder)
 764                 return imap_do_copy(folder, dest, msginfo, TRUE);
 765
 766         srcfile = procmsg_get_message_file(msginfo);
 767         if (!srcfile) return -1;
 768
 769         ret = imap_add_msg(folder, dest, srcfile, FALSE);
 770         g_free(srcfile);
 771
 772         if (ret == 0)
 773                 ret = folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
 774
 775         return ret;
 776 }
 777
 778 gint imap_move_msgs_with_dest(Folder *folder, FolderItem *dest,
 779                               GSList *msglist)
 780 {
 781         MsgInfo *msginfo;
 782         GSList *cur;
 783         gint ret = 0;
 784
 785         g_return_val_if_fail(folder != NULL, -1);
 786         g_return_val_if_fail(dest != NULL, -1);
 787         g_return_val_if_fail(msglist != NULL, -1);
 788
 789         msginfo = (MsgInfo *)msglist->data;
 790         if (folder == msginfo->folder->folder)
 791                 return imap_do_copy_msgs_with_dest(folder, dest, msglist, TRUE);
 792
 793         for (cur = msglist; cur != NULL; cur = cur->next) {
 794                 msginfo = (MsgInfo *)cur->data;
 795                 ret = imap_move_msg(folder, dest, msginfo);
 796                 if (ret != 0) break;
 797         }
 798
 799         return ret;
 800 }
 801
 802 gint imap_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 803 {
 804         gchar *srcfile;
 805         gint ret = 0;
 806
 807         g_return_val_if_fail(folder != NULL, -1);
 808         g_return_val_if_fail(dest != NULL, -1);
 809         g_return_val_if_fail(msginfo != NULL, -1);
 810         g_return_val_if_fail(msginfo->folder != NULL, -1);
 811
 812         if (folder == msginfo->folder->folder)
 813                 return imap_do_copy(folder, dest, msginfo, FALSE);
 814
 815         srcfile = procmsg_get_message_file(msginfo);
 816         if (!srcfile) return -1;
 817
 818         ret = imap_add_msg(folder, dest, srcfile, FALSE);
 819
 820         g_free(srcfile);
 821
 822         return ret;
 823 }
 824
 825 gint imap_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
 826                               GSList *msglist)
 827 {
 828         MsgInfo *msginfo;
 829         GSList *cur;
 830         gint ret = 0;
 831
 832         g_return_val_if_fail(folder != NULL, -1);
 833         g_return_val_if_fail(dest != NULL, -1);
 834         g_return_val_if_fail(msglist != NULL, -1);
 835
 836         msginfo = (MsgInfo *)msglist->data;
 837         if (folder == msginfo->folder->folder)
 838                 return imap_do_copy_msgs_with_dest
 839                         (folder, dest, msglist, FALSE);
 840
 841         for (cur = msglist; cur != NULL; cur = cur->next) {
 842                 msginfo = (MsgInfo *)cur->data;
 843                 ret = imap_copy_msg(folder, dest, msginfo);
 844                 if (ret != 0) break;
 845         }
 846
 847         return ret;
 848 }
 849
 850 gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
 851 {
 852         gint exists, recent, unseen;
 853         guint32 uid_validity;
 854         gint ok;
 855         IMAPSession *session;
 856
 857         g_return_val_if_fail(folder != NULL, -1);
 858         g_return_val_if_fail(folder->type == F_IMAP, -1);
 859         g_return_val_if_fail(item != NULL, -1);
 860
 861         session = imap_session_get(folder);
 862         if (!session) return -1;
 863
 864         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 865                          &exists, &recent, &unseen, &uid_validity);
 866         statusbar_pop_all();
 867         if (ok != IMAP_SUCCESS)
 868                 return ok;
 869
 870         ok = imap_set_message_flags
 871                 (IMAP_SESSION(REMOTE_FOLDER(folder)->session),
 872                  (guint32)uid, (guint32)uid, IMAP_FLAG_DELETED, TRUE);
 873         statusbar_pop_all();
 874         if (ok != IMAP_SUCCESS) {
 875                 log_warning(_("can't set deleted flags: %d\n"), uid);
 876                 return ok;
 877         }
 878
 879         ok = imap_cmd_expunge(SESSION(session)->sock);
 880         statusbar_pop_all();
 881         if (ok != IMAP_SUCCESS) {
 882                 log_warning(_("can't expunge\n"));
 883                 return ok;
 884         }
 885
 886         return IMAP_SUCCESS;
 887 }
 888
 889 gint imap_remove_all_msg(Folder *folder, FolderItem *item)
 890 {
 891         gint exists, recent, unseen;
 892         guint32 uid_validity;
 893         gint ok;
 894         IMAPSession *session;
 895
 896         g_return_val_if_fail(folder != NULL, -1);
 897         g_return_val_if_fail(item != NULL, -1);
 898
 899         session = imap_session_get(folder);
 900         if (!session) return -1;
 901
 902         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 903                          &exists, &recent, &unseen, &uid_validity);
 904         statusbar_pop_all();
 905         if (ok != IMAP_SUCCESS)
 906                 return ok;
 907         if (exists == 0)
 908                 return IMAP_SUCCESS;
 909
 910         imap_cmd_gen_send(SESSION(session)->sock,
 911                           "STORE 1:%d +FLAGS (\\Deleted)", exists);
 912         ok = imap_cmd_ok(SESSION(session)->sock, NULL);
 913         statusbar_pop_all();
 914         if (ok != IMAP_SUCCESS) {
 915                 log_warning(_("can't set deleted flags: 1:%d\n"), exists);
 916                 return ok;
 917         }
 918
 919         ok = imap_cmd_expunge(SESSION(session)->sock);
 920         statusbar_pop_all();
 921         if (ok != IMAP_SUCCESS) {
 922                 log_warning(_("can't expunge\n"));
 923                 return ok;
 924         }
 925
 926         return IMAP_SUCCESS;
 927 }
 928
 929 gboolean imap_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 930 {
 931         /* TODO: properly implement this method */
 932         return FALSE;
 933 }
 934
 935 gint imap_scan_folder(Folder *folder, FolderItem *item)
 936 {
 937         IMAPSession *session;
 938         gint messages, recent, unseen;
 939         guint32 uid_next, uid_validity;
 940         gint ok;
 941
 942         g_return_val_if_fail(folder != NULL, -1);
 943         g_return_val_if_fail(item != NULL, -1);
 944
 945         session = imap_session_get(folder);
 946         if (!session) return -1;
 947
 948         ok = imap_status(session, IMAP_FOLDER(folder), item->path,
 949                          &messages, &recent, &uid_next, &uid_validity, &unseen);
 950         statusbar_pop_all();
 951         if (ok != IMAP_SUCCESS) return -1;
 952
 953         item->new = unseen > 0 ? recent : 0;
 954         item->unread = unseen;
 955         item->total = messages;
 956         item->last_num = (messages > 0 && uid_next > 0) ? uid_next - 1 : 0;
 957         /* item->mtime = uid_validity; */
 958
 959         return 0;
 960 }
 961
 962 void imap_scan_tree(Folder *folder)
 963 {
 964         IMAPFolder *imapfolder = IMAP_FOLDER(folder);
 965         FolderItem *item;
 966         IMAPSession *session;
 967         IMAPNameSpace *namespace = NULL;
 968         gchar *root_folder = NULL;
 969
 970         g_return_if_fail(folder != NULL);
 971         g_return_if_fail(folder->account != NULL);
 972
 973         session = imap_session_get(folder);
 974         if (!session) return;
 975
 976         if (imapfolder->namespace && imapfolder->namespace->data)
 977                 namespace = (IMAPNameSpace *)imapfolder->namespace->data;
 978
 979         if (folder->account->imap_dir && *folder->account->imap_dir) {
 980                 gchar *imap_dir;
 981                 Xstrdup_a(imap_dir, folder->account->imap_dir, return);
 982                 strtailchomp(imap_dir, '/');
 983                 root_folder = g_strconcat
 984                         (namespace && namespace->name ? namespace->name : "",
 985                          imap_dir, NULL);
 986                 if (namespace && namespace->separator)
 987                         subst_char(root_folder, namespace->separator, '/');
 988         }
 989
 990         if (root_folder)
 991                 debug_print("IMAP root directory: %s\n", root_folder);
 992
 993         folder_tree_destroy(folder);
 994         item = folder_item_new(folder->name, root_folder);
 995         item->folder = folder;
 996         folder->node = g_node_new(item);
 997         g_free(root_folder);
 998
 999         imap_scan_tree_recursive(session, item, namespace);
1000
1001         imap_create_missing_folders(folder);
1002 }
1003
1004 static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item,
1005                                      IMAPNameSpace *namespace)
1006 {
1007         Folder *folder;
1008         IMAPFolder *imapfolder;
1009         FolderItem *new_item;
1010         GSList *item_list, *cur;
1011         gchar *real_path;
1012         gchar *wildcard_path;
1013         gchar separator = '/';
1014         gchar wildcard[3];
1015
1016         g_return_val_if_fail(item != NULL, -1);
1017         g_return_val_if_fail(item->folder != NULL, -1);
1018         g_return_val_if_fail(item->no_sub == FALSE, -1);
1019
1020         folder = FOLDER(item->folder);
1021         imapfolder = IMAP_FOLDER(folder);
1022
1023         if (namespace && namespace->separator)
1024                 separator = namespace->separator;
1025
1026         if (item->folder->ui_func)
1027                 item->folder->ui_func(folder, item, folder->ui_func_data);
1028
1029         if (item->path) {
1030                 wildcard[0] = separator;
1031                 wildcard[1] = '%';
1032                 wildcard[2] = '\0';
1033                 real_path = imap_get_real_path(imapfolder, item->path);
1034         } else {
1035                 wildcard[0] = '%';
1036                 wildcard[1] = '\0';
1037                 real_path = g_strdup(namespace && namespace->name &&
1038                                      strncmp(namespace->name, "INBOX", 5) != 0
1039                                      ? namespace->name : "");
1040         }
1041
1042         Xstrcat_a(wildcard_path, real_path, wildcard,
1043                   {g_free(real_path); return IMAP_ERROR;});
1044         QUOTE_IF_REQUIRED(wildcard_path, wildcard_path);
1045
1046         imap_cmd_gen_send(SESSION(session)->sock, "LIST \"\" %s",
1047                           wildcard_path);
1048
1049         strtailchomp(real_path, separator);
1050         item_list = imap_parse_list(session, real_path);
1051         g_free(real_path);
1052
1053         for (cur = item_list; cur != NULL; cur = cur->next) {
1054                 new_item = cur->data;
1055                 if (!strcmp(new_item->path, "INBOX")) {
1056                         if (!folder->inbox) {
1057                                 new_item->stype = F_INBOX;
1058                                 item->folder->inbox = new_item;
1059                         } else {
1060                                 folder_item_destroy(new_item);
1061                                 continue;
1062                         }
1063                 } else if (!item->parent || item->stype == F_INBOX) {
1064                         gchar *base;
1065
1066                         base = g_basename(new_item->path);
1067
1068                         if (!folder->outbox && !strcasecmp(base, "Sent")) {
1069                                 new_item->stype = F_OUTBOX;
1070                                 folder->outbox = new_item;
1071                         } else if (!folder->draft && !strcasecmp(base, "Drafts")) {
1072                                 new_item->stype = F_DRAFT;
1073                                 folder->draft = new_item;
1074                         } else if (!folder->queue && !strcasecmp(base, "Queue")) {
1075                                 new_item->stype = F_QUEUE;
1076                                 folder->queue = new_item;
1077                         } else if (!folder->trash && !strcasecmp(base, "Trash")) {
1078                                 new_item->stype = F_TRASH;
1079                                 folder->trash = new_item;
1080                         }
1081                 }
1082                 folder_item_append(item, new_item);
1083                 if (new_item->no_select == FALSE)
1084                         imap_scan_folder(folder, new_item);
1085                 if (new_item->no_sub == FALSE)
1086                         imap_scan_tree_recursive(session, new_item, namespace);
1087         }
1088
1089         return IMAP_SUCCESS;
1090 }
1091
1092 static GSList *imap_parse_list(IMAPSession *session, const gchar *real_path)
1093 {
1094         gchar buf[IMAPBUFSIZE];
1095         gchar flags[256];
1096         gchar separator[16];
1097         gchar *p;
1098         gchar *name;
1099         gchar *loc_name, *loc_path;
1100         GSList *item_list = NULL;
1101         GString *str;
1102         FolderItem *new_item;
1103
1104         debug_print("getting list of %s ...\n",
1105                     *real_path ? real_path : "\"\"");
1106
1107         str = g_string_new(NULL);
1108
1109         for (;;) {
1110                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) <= 0) {
1111                         log_warning(_("error occured while getting LIST.\n"));
1112                         break;
1113                 }
1114                 strretchomp(buf);
1115                 if (buf[0] != '*' || buf[1] != ' ') {
1116                         log_print("IMAP4< %s\n", buf);
1117                         break;
1118                 }
1119                 debug_print("IMAP4< %s\n", buf);
1120
1121                 g_string_assign(str, buf);
1122                 p = str->str + 2;
1123                 if (strncmp(p, "LIST ", 5) != 0) continue;
1124                 p += 5;
1125
1126                 if (*p != '(') continue;
1127                 p++;
1128                 p = strchr_cpy(p, ')', flags, sizeof(flags));
1129                 if (!p) continue;
1130                 while (*p == ' ') p++;
1131
1132                 p = strchr_cpy(p, ' ', separator, sizeof(separator));
1133                 if (!p) continue;
1134                 extract_quote(separator, '"');
1135                 if (!strcmp(separator, "NIL"))
1136                         separator[0] = '\0';
1137
1138                 buf[0] = '\0';
1139                 while (*p == ' ') p++;
1140                 if (*p == '{' || *p == '"')
1141                         p = imap_parse_atom(SESSION(session)->sock, p,
1142                                             buf, sizeof(buf), str);
1143                 else
1144                         strncpy2(buf, p, sizeof(buf));
1145                 strtailchomp(buf, separator[0]);
1146                 if (buf[0] == '\0') continue;
1147                 if (!strcmp(buf, real_path)) continue;
1148
1149                 if (separator[0] != '\0')
1150                         subst_char(buf, separator[0], '/');
1151                 name = g_basename(buf);
1152                 if (name[0] == '.') continue;
1153
1154                 loc_name = imap_modified_utf7_to_locale(name);
1155                 loc_path = imap_modified_utf7_to_locale(buf);
1156                 new_item = folder_item_new(loc_name, loc_path);
1157                 if (strcasestr(flags, "\\Noinferiors") != NULL)
1158                         new_item->no_sub = TRUE;
1159                 if (strcmp(buf, "INBOX") != 0 &&
1160                     strcasestr(flags, "\\Noselect") != NULL)
1161                         new_item->no_select = TRUE;
1162
1163                 item_list = g_slist_append(item_list, new_item);
1164
1165                 debug_print("folder %s has been added.\n", loc_path);
1166                 g_free(loc_path);
1167                 g_free(loc_name);
1168         }
1169
1170         g_string_free(str, TRUE);
1171         statusbar_pop_all();
1172
1173         return item_list;
1174 }
1175
1176 gint imap_create_tree(Folder *folder)
1177 {
1178         g_return_val_if_fail(folder != NULL, -1);
1179         g_return_val_if_fail(folder->node != NULL, -1);
1180         g_return_val_if_fail(folder->node->data != NULL, -1);
1181         g_return_val_if_fail(folder->account != NULL, -1);
1182
1183         imap_scan_tree(folder);
1184         imap_create_missing_folders(folder);
1185
1186         return 0;
1187 }
1188
1189 static void imap_create_missing_folders(Folder *folder)
1190 {
1191         g_return_if_fail(folder != NULL);
1192
1193         if (!folder->inbox)
1194                 folder->inbox = imap_create_special_folder
1195                         (folder, F_INBOX, "INBOX");
1196 #if 0
1197         if (!folder->outbox)
1198                 folder->outbox = imap_create_special_folder
1199                         (folder, F_OUTBOX, "Sent");
1200         if (!folder->draft)
1201                 folder->draft = imap_create_special_folder
1202                         (folder, F_DRAFT, "Drafts");
1203         if (!folder->queue)
1204                 folder->queue = imap_create_special_folder
1205                         (folder, F_QUEUE, "Queue");
1206 #endif
1207         if (!folder->trash)
1208                 folder->trash = imap_create_special_folder
1209                         (folder, F_TRASH, "Trash");
1210 }
1211
1212 static FolderItem *imap_create_special_folder(Folder *folder,
1213                                               SpecialFolderItemType stype,
1214                                               const gchar *name)
1215 {
1216         FolderItem *item;
1217         FolderItem *new_item;
1218
1219         g_return_val_if_fail(folder != NULL, NULL);
1220         g_return_val_if_fail(folder->node != NULL, NULL);
1221         g_return_val_if_fail(folder->node->data != NULL, NULL);
1222         g_return_val_if_fail(folder->account != NULL, NULL);
1223         g_return_val_if_fail(name != NULL, NULL);
1224
1225         item = FOLDER_ITEM(folder->node->data);
1226         new_item = imap_create_folder(folder, item, name);
1227
1228         if (!new_item) {
1229                 g_warning(_("Can't create '%s'\n"), name);
1230                 if (!folder->inbox) return NULL;
1231
1232                 new_item = imap_create_folder(folder, folder->inbox, name);
1233                 if (!new_item)
1234                         g_warning(_("Can't create '%s' under INBOX\n"), name);
1235                 else
1236                         new_item->stype = stype;
1237         } else
1238                 new_item->stype = stype;
1239
1240         return new_item;
1241 }
1242
1243 FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
1244                                const gchar *name)
1245 {
1246         gchar *dirpath, *imap_path;
1247         IMAPSession *session;
1248         IMAPNameSpace *namespace;
1249         FolderItem *new_item;
1250         gchar *new_name;
1251         const gchar *p;
1252         gint ok;
1253
1254         g_return_val_if_fail(folder != NULL, NULL);
1255         g_return_val_if_fail(folder->account != NULL, NULL);
1256         g_return_val_if_fail(parent != NULL, NULL);
1257         g_return_val_if_fail(name != NULL, NULL);
1258
1259         session = imap_session_get(folder);
1260         if (!session) return NULL;
1261
1262         if (!parent->parent && strcmp(name, "INBOX") == 0)
1263                 dirpath = g_strdup(name);
1264         else if (parent->path)
1265                 dirpath = g_strconcat(parent->path, "/", name, NULL);
1266         else if ((p = strchr(name, '/')) != NULL && *(p + 1) != '\0')
1267                 dirpath = g_strdup(name);
1268         else if (folder->account->imap_dir && *folder->account->imap_dir) {
1269                 gchar *imap_dir;
1270
1271                 Xstrdup_a(imap_dir, folder->account->imap_dir, return NULL);
1272                 strtailchomp(imap_dir, '/');
1273                 dirpath = g_strconcat(imap_dir, "/", name, NULL);
1274         } else
1275                 dirpath = g_strdup(name);
1276
1277         strtailchomp(dirpath, '/');
1278         imap_path = imap_locale_to_modified_utf7(dirpath);
1279         Xstrdup_a(new_name, name, {g_free(dirpath); return NULL;});
1280         strtailchomp(new_name, '/');
1281         namespace = imap_find_namespace(IMAP_FOLDER(folder), imap_path);
1282         if (namespace && namespace->separator) {
1283                 imap_path_separator_subst(imap_path, namespace->separator);
1284                 subst_char(new_name, '/', namespace->separator);
1285         }
1286
1287         if (strcmp(name, "INBOX") != 0) {
1288                 GPtrArray *argbuf;
1289                 gint i;
1290                 gboolean exist = FALSE;
1291
1292                 argbuf = g_ptr_array_new();
1293                 ok = imap_cmd_list(SESSION(session)->sock, NULL, imap_path,
1294                                    argbuf);
1295                 statusbar_pop_all();
1296                 if (ok != IMAP_SUCCESS) {
1297                         log_warning(_("can't create mailbox: LIST failed\n"));
1298                         g_free(imap_path);
1299                         g_free(dirpath);
1300                         g_ptr_array_free(argbuf, TRUE);
1301                         return NULL;
1302                 }
1303
1304                 for (i = 0; i < argbuf->len; i++) {
1305                         gchar *str;
1306                         str = g_ptr_array_index(argbuf, i);
1307                         if (!strncmp(str, "LIST ", 5)) {
1308                                 exist = TRUE;
1309                                 break;
1310                         }
1311                 }
1312                 g_ptr_array_free(argbuf, TRUE);
1313
1314                 if (!exist) {
1315                         ok = imap_cmd_create(SESSION(session)->sock, imap_path);
1316                         statusbar_pop_all();
1317                         if (ok != IMAP_SUCCESS) {
1318                                 log_warning(_("can't create mailbox\n"));
1319                                 g_free(imap_path);
1320                                 g_free(dirpath);
1321                                 return NULL;
1322                         }
1323                 }
1324         }
1325
1326         new_item = folder_item_new(new_name, dirpath);
1327         folder_item_append(parent, new_item);
1328         g_free(imap_path);
1329         g_free(dirpath);
1330
1331         dirpath = folder_item_get_path(new_item);
1332         if (!is_dir_exist(dirpath))
1333                 make_dir_hier(dirpath);
1334         g_free(dirpath);
1335
1336         return new_item;
1337 }
1338
1339 gint imap_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
1340 {
1341         gchar *dirpath;
1342         gchar *newpath;
1343         gchar *real_oldpath;
1344         gchar *real_newpath;
1345         GNode *node;
1346         gchar *paths[2];
1347         gchar *old_cache_dir;
1348         gchar *new_cache_dir;
1349         IMAPSession *session;
1350         IMAPNameSpace *namespace;
1351         gint ok;
1352         gint exists, recent, unseen;
1353         guint32 uid_validity;
1354
1355         g_return_val_if_fail(folder != NULL, -1);
1356         g_return_val_if_fail(item != NULL, -1);
1357         g_return_val_if_fail(item->path != NULL, -1);
1358         g_return_val_if_fail(name != NULL, -1);
1359
1360         session = imap_session_get(folder);
1361         if (!session) return -1;
1362
1363         real_oldpath = imap_get_real_path(IMAP_FOLDER(folder), item->path);
1364
1365         g_free(session->mbox);
1366         session->mbox = NULL;
1367         ok = imap_cmd_examine(SESSION(session)->sock, "INBOX",
1368                               &exists, &recent, &unseen, &uid_validity);
1369         statusbar_pop_all();
1370         if (ok != IMAP_SUCCESS) {
1371                 g_free(real_oldpath);
1372                 return -1;
1373         }
1374
1375         namespace = imap_find_namespace(IMAP_FOLDER(folder), item->path);
1376         if (strchr(item->path, G_DIR_SEPARATOR)) {
1377                 dirpath = g_dirname(item->path);
1378                 newpath = g_strconcat(dirpath, G_DIR_SEPARATOR_S, name, NULL);
1379                 g_free(dirpath);
1380         } else
1381                 newpath = g_strdup(name);
1382
1383         real_newpath = imap_locale_to_modified_utf7(newpath);
1384         if (namespace && namespace->separator)
1385                 imap_path_separator_subst(real_newpath, namespace->separator);
1386
1387         ok = imap_cmd_rename(SESSION(session)->sock, real_oldpath, real_newpath);
1388         statusbar_pop_all();
1389         if (ok != IMAP_SUCCESS) {
1390                 log_warning(_("can't rename mailbox: %s to %s\n"),
1391                             real_oldpath, real_newpath);
1392                 g_free(real_oldpath);
1393                 g_free(newpath);
1394                 g_free(real_newpath);
1395                 return -1;
1396         }
1397
1398         g_free(item->name);
1399         item->name = g_strdup(name);
1400
1401         old_cache_dir = folder_item_get_path(item);
1402
1403         node = g_node_find(item->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL,
1404                            item);
1405         paths[0] = g_strdup(item->path);
1406         paths[1] = newpath;
1407         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1408                         imap_rename_folder_func, paths);
1409
1410         if (is_dir_exist(old_cache_dir)) {
1411                 new_cache_dir = folder_item_get_path(item);
1412                 if (rename(old_cache_dir, new_cache_dir) < 0) {
1413                         FILE_OP_ERROR(old_cache_dir, "rename");
1414                 }
1415                 g_free(new_cache_dir);
1416         }
1417
1418         g_free(old_cache_dir);
1419         g_free(paths[0]);
1420         g_free(newpath);
1421         g_free(real_oldpath);
1422         g_free(real_newpath);
1423
1424         return 0;
1425 }
1426
1427 gint imap_remove_folder(Folder *folder, FolderItem *item)
1428 {
1429         gint ok;
1430         IMAPSession *session;
1431         gchar *path;
1432         gchar *cache_dir;
1433         gint exists, recent, unseen;
1434         guint32 uid_validity;
1435
1436         g_return_val_if_fail(folder != NULL, -1);
1437         g_return_val_if_fail(item != NULL, -1);
1438         g_return_val_if_fail(item->path != NULL, -1);
1439
1440         session = imap_session_get(folder);
1441         if (!session) return -1;
1442
1443         path = imap_get_real_path(IMAP_FOLDER(folder), item->path);
1444
1445         ok = imap_cmd_examine(SESSION(session)->sock, "INBOX",
1446                               &exists, &recent, &unseen, &uid_validity);
1447         statusbar_pop_all();
1448         if (ok != IMAP_SUCCESS) {
1449                 g_free(path);
1450                 return -1;
1451         }
1452
1453         ok = imap_cmd_delete(SESSION(session)->sock, path);
1454         statusbar_pop_all();
1455         if (ok != IMAP_SUCCESS) {
1456                 log_warning(_("can't delete mailbox\n"));
1457                 g_free(path);
1458                 return -1;
1459         }
1460
1461         g_free(path);
1462         cache_dir = folder_item_get_path(item);
1463         if (is_dir_exist(cache_dir) && remove_dir_recursive(cache_dir) < 0)
1464                 g_warning("can't remove directory '%s'\n", cache_dir);
1465         g_free(cache_dir);
1466         folder_item_remove(item);
1467
1468         return 0;
1469 }
1470
1471 static GSList *imap_get_uncached_messages(IMAPSession *session,
1472                                           FolderItem *item,
1473                                           guint32 first_uid, guint32 last_uid)
1474 {
1475         gchar *tmp;
1476         GSList *newlist = NULL;
1477         GSList *llast = NULL;
1478         GString *str;
1479         MsgInfo *msginfo;
1480
1481         g_return_val_if_fail(session != NULL, NULL);
1482         g_return_val_if_fail(item != NULL, NULL);
1483         g_return_val_if_fail(item->folder != NULL, NULL);
1484         g_return_val_if_fail(item->folder->type == F_IMAP, NULL);
1485         g_return_val_if_fail(first_uid <= last_uid, NULL);
1486
1487         if (imap_cmd_envelope(SESSION(session)->sock, first_uid, last_uid)
1488             != IMAP_SUCCESS) {
1489                 log_warning(_("can't get envelope\n"));
1490                 return NULL;
1491         }
1492
1493         str = g_string_new(NULL);
1494
1495         for (;;) {
1496                 if ((tmp = sock_getline(SESSION(session)->sock)) == NULL) {
1497                         log_warning(_("error occurred while getting envelope.\n"));
1498                         g_string_free(str, TRUE);
1499                         return newlist;
1500                 }
1501                 strretchomp(tmp);
1502                 if (tmp[0] != '*' || tmp[1] != ' ') {
1503                         log_print("IMAP4< %s\n", tmp);
1504                         g_free(tmp);
1505                         break;
1506                 }
1507                 if (strstr(tmp, "FETCH") == NULL) {
1508                         log_print("IMAP4< %s\n", tmp);
1509                         g_free(tmp);
1510                         continue;
1511                 }
1512                 /* log_print("IMAP4< %s\n", tmp); */
1513                 debug_print("IMAP4< %s\n", tmp);
1514                 g_string_assign(str, tmp);
1515                 g_free(tmp);
1516
1517                 msginfo = imap_parse_envelope(SESSION(session)->sock, str);
1518                 if (!msginfo) {
1519                         log_warning(_("can't parse envelope: %s\n"), str->str);
1520                         continue;
1521                 }
1522                 if (item->stype == F_QUEUE) {
1523                         MSG_SET_TMP_FLAGS(msginfo->flags, MSG_QUEUED);
1524                 } else if (item->stype == F_DRAFT) {
1525                         MSG_SET_TMP_FLAGS(msginfo->flags, MSG_DRAFT);
1526                 }
1527
1528                 msginfo->folder = item;
1529
1530                 if (!newlist)
1531                         llast = newlist = g_slist_append(newlist, msginfo);
1532                 else {
1533                         llast = g_slist_append(llast, msginfo);
1534                         llast = llast->next;
1535                 }
1536         }
1537
1538         g_string_free(str, TRUE);
1539
1540         return newlist;
1541 }
1542
1543 static GSList *imap_delete_cached_messages(GSList *mlist, FolderItem *item,
1544                                            guint32 first_uid, guint32 last_uid)
1545 {
1546         GSList *cur, *next;
1547         MsgInfo *msginfo;
1548         gchar *dir;
1549
1550         g_return_val_if_fail(item != NULL, mlist);
1551         g_return_val_if_fail(item->folder != NULL, mlist);
1552         g_return_val_if_fail(item->folder->type == F_IMAP, mlist);
1553
1554         debug_print(_("Deleting cached messages %d - %d ... "),
1555                     first_uid, last_uid);
1556
1557         dir = folder_item_get_path(item);
1558         remove_numbered_files(dir, first_uid, last_uid);
1559         g_free(dir);
1560
1561         for (cur = mlist; cur != NULL; ) {
1562                 next = cur->next;
1563
1564                 msginfo = (MsgInfo *)cur->data;
1565                 if (msginfo != NULL && first_uid <= msginfo->msgnum &&
1566                     msginfo->msgnum <= last_uid) {
1567                         procmsg_msginfo_free(msginfo);
1568                         mlist = g_slist_remove(mlist, msginfo);
1569                 }
1570
1571                 cur = next;
1572         }
1573
1574         debug_print(_("done.\n"));
1575
1576         return mlist;
1577 }
1578
1579 static void imap_delete_all_cached_messages(FolderItem *item)
1580 {
1581         gchar *dir;
1582
1583         g_return_if_fail(item != NULL);
1584         g_return_if_fail(item->folder != NULL);
1585         g_return_if_fail(item->folder->type == F_IMAP);
1586
1587         debug_print(_("Deleting all cached messages... "));
1588
1589         dir = folder_item_get_path(item);
1590         remove_all_numbered_files(dir);
1591         g_free(dir);
1592
1593         debug_print(_("done.\n"));
1594 }
1595
1596
1597 static SockInfo *imap_open_tunnel(const gchar *server,
1598                            const gchar *tunnelcmd)
1599 {
1600         SockInfo *sock;
1601
1602         if ((sock = sock_connect_cmd(server, tunnelcmd)) == NULL)
1603                 log_warning(_("Can't establish IMAP4 session with: %s\n"),
1604                             server);
1605                 return NULL;
1606
1607         return imap_init_sock(sock);
1608 }
1609
1610
1611 #if USE_SSL
1612 static SockInfo *imap_open(const gchar *server, gushort port,
1613                            gboolean use_ssl)
1614 #else
1615 static SockInfo *imap_open(const gchar *server, gushort port)
1616 #endif
1617 {
1618         SockInfo *sock;
1619
1620         if ((sock = sock_connect(server, port)) == NULL) {
1621                 log_warning(_("Can't connect to IMAP4 server: %s:%d\n"),
1622                             server, port);
1623                 return NULL;
1624         }
1625
1626 #if USE_SSL
1627         if (use_ssl && !ssl_init_socket(sock)) {
1628                 log_warning(_("Can't establish IMAP4 session with: %s:%d\n"),
1629                             server, port);
1630                 sock_close(sock);
1631                 return NULL;
1632         }
1633 #endif
1634
1635         return imap_init_sock(sock);
1636 }
1637
1638
1639 static SockInfo *imap_init_sock(SockInfo *sock)
1640 {
1641         imap_cmd_count = 0;
1642
1643         if (imap_cmd_noop(sock) != IMAP_SUCCESS) {
1644                 log_warning(_("Can't establish IMAP4 session\n"));
1645                 sock_close(sock);
1646                 return NULL;
1647         }
1648
1649         return sock;
1650 }
1651
1652 #define THROW goto catch
1653
1654 static void imap_parse_namespace(IMAPSession *session, IMAPFolder *folder)
1655 {
1656         gchar *ns_str;
1657         gchar *name;
1658         gchar *separator;
1659         gchar *p;
1660         IMAPNameSpace *namespace;
1661         GList *ns_list = NULL;
1662
1663         g_return_if_fail(session != NULL);
1664         g_return_if_fail(folder != NULL);
1665
1666         if (folder->namespace != NULL) return;
1667
1668         if (imap_cmd_namespace(SESSION(session)->sock, &ns_str)
1669             != IMAP_SUCCESS) {
1670                 log_warning(_("can't get namespace\n"));
1671                 return;
1672         }
1673
1674         /* get the first element */
1675         extract_one_parenthesis_with_skip_quote(ns_str, '"', '(', ')');
1676         g_strstrip(ns_str);
1677         p = ns_str;
1678
1679         while (*p != '\0') {
1680                 /* parse ("#foo" "/") */
1681
1682                 while (*p && *p != '(') p++;
1683                 if (*p == '\0') THROW;
1684                 p++;
1685
1686                 while (*p && *p != '"') p++;
1687                 if (*p == '\0') THROW;
1688                 p++;
1689                 name = p;
1690
1691                 while (*p && *p != '"') p++;
1692                 if (*p == '\0') THROW;
1693                 *p = '\0';
1694                 p++;
1695
1696                 while (*p && isspace(*p)) p++;
1697                 if (*p == '\0') THROW;
1698                 if (strncmp(p, "NIL", 3) == 0)
1699                         separator = NULL;
1700                 else if (*p == '"') {
1701                         p++;
1702                         separator = p;
1703                         while (*p && *p != '"') p++;
1704                         if (*p == '\0') THROW;
1705                         *p = '\0';
1706                         p++;
1707                 } else THROW;
1708
1709                 while (*p && *p != ')') p++;
1710                 if (*p == '\0') THROW;
1711                 p++;
1712
1713                 namespace = g_new(IMAPNameSpace, 1);
1714                 namespace->name = g_strdup(name);
1715                 namespace->separator = separator ? separator[0] : '\0';
1716                 ns_list = g_list_append(ns_list, namespace);
1717                 IMAP_FOLDER(folder)->namespace = ns_list;
1718         }
1719
1720 catch:
1721         g_free(ns_str);
1722         return;
1723 }
1724
1725 #undef THROW
1726
1727 static IMAPNameSpace *imap_find_namespace(IMAPFolder *folder,
1728                                           const gchar *path)
1729 {
1730         IMAPNameSpace *namespace = NULL;
1731         GList *ns_list;
1732         gchar *name;
1733
1734         g_return_val_if_fail(folder != NULL, NULL);
1735         g_return_val_if_fail(path != NULL, NULL);
1736
1737         ns_list = folder->namespace;
1738
1739         for (; ns_list != NULL; ns_list = ns_list->next) {
1740                 IMAPNameSpace *tmp_ns = ns_list->data;
1741
1742                 Xstrdup_a(name, tmp_ns->name, return namespace);
1743                 if (tmp_ns->separator && tmp_ns->separator != '/')
1744                         subst_char(name, tmp_ns->separator, '/');
1745                 if (strncmp(path, name, strlen(name)) == 0)
1746                         namespace = tmp_ns;
1747         }
1748
1749         return namespace;
1750 }
1751
1752 static gchar *imap_get_real_path(IMAPFolder *folder, const gchar *path)
1753 {
1754         gchar *real_path;
1755         IMAPNameSpace *namespace;
1756
1757         g_return_val_if_fail(folder != NULL, NULL);
1758         g_return_val_if_fail(path != NULL, NULL);
1759
1760         real_path = imap_locale_to_modified_utf7(path);
1761         namespace = imap_find_namespace(folder, path);
1762         if (namespace && namespace->separator)
1763                 imap_path_separator_subst(real_path, namespace->separator);
1764
1765         return real_path;
1766 }
1767
1768 static gchar *imap_parse_atom(SockInfo *sock, gchar *src,
1769                               gchar *dest, gint dest_len, GString *str)
1770 {
1771         gchar *cur_pos = src;
1772         gchar *nextline;
1773
1774         g_return_val_if_fail(str != NULL, cur_pos);
1775
1776         /* read the next line if the current response buffer is empty */
1777         while (isspace(*cur_pos)) cur_pos++;
1778         while (*cur_pos == '\0') {
1779                 if ((nextline = sock_getline(sock)) == NULL)
1780                         return cur_pos;
1781                 g_string_assign(str, nextline);
1782                 cur_pos = str->str;
1783                 strretchomp(nextline);
1784                 /* log_print("IMAP4< %s\n", nextline); */
1785                 debug_print("IMAP4< %s\n", nextline);
1786                 g_free(nextline);
1787
1788                 while (isspace(*cur_pos)) cur_pos++;
1789         }
1790
1791         if (!strncmp(cur_pos, "NIL", 3)) {
1792                 *dest = '\0';
1793                 cur_pos += 3;
1794         } else if (*cur_pos == '\"') {
1795                 gchar *p;
1796
1797                 p = get_quoted(cur_pos, '\"', dest, dest_len);
1798                 cur_pos = p ? p : cur_pos + 2;
1799         } else if (*cur_pos == '{') {
1800                 gchar buf[32];
1801                 gint len;
1802                 gint line_len = 0;
1803
1804                 cur_pos = strchr_cpy(cur_pos + 1, '}', buf, sizeof(buf));
1805                 len = atoi(buf);
1806
1807                 g_string_truncate(str, 0);
1808                 cur_pos = str->str;
1809
1810                 do {
1811                         if ((nextline = sock_getline(sock)) == NULL)
1812                                 return cur_pos;
1813                         line_len += strlen(nextline);
1814                         g_string_append(str, nextline);
1815                         cur_pos = str->str;
1816                         strretchomp(nextline);
1817                         /* log_print("IMAP4< %s\n", nextline); */
1818                         debug_print("IMAP4< %s\n", nextline);
1819                         g_free(nextline);
1820                 } while (line_len < len);
1821
1822                 memcpy(dest, cur_pos, MIN(len, dest_len - 1));
1823                 dest[MIN(len, dest_len - 1)] = '\0';
1824                 cur_pos += len;
1825         }
1826
1827         return cur_pos;
1828 }
1829
1830 static gchar *imap_parse_one_address(SockInfo *sock, gchar *start,
1831                                      gchar *out_from_str,
1832                                      gchar *out_fromname_str,
1833                                      GString *str)
1834 {
1835         gchar buf[IMAPBUFSIZE];
1836         gchar *userid;
1837         gchar *domain;
1838         gchar *cur_pos = start;
1839
1840         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1841         conv_unmime_header(out_fromname_str, IMAPBUFSIZE, buf, NULL);
1842
1843         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1844
1845         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1846         Xstrdup_a(userid, buf, return cur_pos + 1);
1847
1848         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1849         Xstrdup_a(domain, buf, return cur_pos + 1);
1850
1851         if (out_fromname_str[0] != '\0') {
1852                 g_snprintf(out_from_str, IMAPBUFSIZE, "\"%s\" <%s@%s>",
1853                            out_fromname_str, userid, domain);
1854         } else {
1855                 g_snprintf(out_from_str, IMAPBUFSIZE, "%s@%s",
1856                            userid, domain);
1857                 strcpy(out_fromname_str, out_from_str);
1858         }
1859
1860         while (*cur_pos == ' ') cur_pos++;
1861         g_return_val_if_fail(*cur_pos == ')', NULL);
1862
1863         return cur_pos + 1;
1864 }
1865
1866 static gchar *imap_parse_address(SockInfo *sock, gchar *start,
1867                                  gchar **out_from_str,
1868                                  gchar **out_fromname_str,
1869                                  GString *str)
1870 {
1871         gchar buf[IMAPBUFSIZE];
1872         gchar name_buf[IMAPBUFSIZE];
1873         gchar *cur_pos = start;
1874         GString *addr_str;
1875
1876         if (out_from_str)     *out_from_str     = NULL;
1877         if (out_fromname_str) *out_fromname_str = NULL;
1878         buf[0] = name_buf[0] = '\0';
1879
1880         if (!strncmp(cur_pos, "NIL", 3)) {
1881                 if (out_from_str)     *out_from_str     = g_strdup("");
1882                 if (out_fromname_str) *out_fromname_str = g_strdup("");
1883                 return cur_pos + 3;
1884         }
1885
1886         g_return_val_if_fail(*cur_pos == '(', NULL);
1887         cur_pos++;
1888
1889         addr_str = g_string_new(NULL);
1890
1891         for (;;) {
1892                 gchar ch = *cur_pos++;
1893                 if (ch == ')') break;
1894                 if (ch == '(') {
1895                         cur_pos = imap_parse_one_address
1896                                 (sock, cur_pos, buf, name_buf, str);
1897                         if (!cur_pos) {
1898                                 g_string_free(addr_str, TRUE);
1899                                 return NULL;
1900                         }
1901                         if (addr_str->str[0] != '\0')
1902                                 g_string_append(addr_str, ", ");
1903                         g_string_append(addr_str, buf);
1904                 }
1905         }
1906
1907         if (out_from_str)     *out_from_str     = g_strdup(addr_str->str);
1908         if (out_fromname_str) *out_fromname_str = g_strdup(name_buf);
1909
1910         g_string_free(addr_str, TRUE);
1911
1912         return cur_pos;
1913 }
1914
1915 static MsgFlags imap_parse_flags(const gchar *flag_str)
1916 {
1917         const gchar *p = flag_str;
1918         MsgFlags flags;
1919
1920         flags.perm_flags = MSG_UNREAD;
1921         flags.tmp_flags  = MSG_IMAP;
1922
1923         while ((p = strchr(p, '\\')) != NULL) {
1924                 p++;
1925
1926                 if (g_strncasecmp(p, "Recent", 6) == 0 && MSG_IS_UNREAD(flags)) {
1927                         MSG_SET_PERM_FLAGS(flags, MSG_NEW);
1928                 } else if (g_strncasecmp(p, "Seen", 4) == 0) {
1929                         MSG_UNSET_PERM_FLAGS(flags, MSG_NEW|MSG_UNREAD);
1930                 } else if (g_strncasecmp(p, "Deleted", 7) == 0) {
1931                         MSG_SET_PERM_FLAGS(flags, MSG_DELETED);
1932                 } else if (g_strncasecmp(p, "Flagged", 7) == 0) {
1933                         MSG_SET_PERM_FLAGS(flags, MSG_MARKED);
1934                 } else if (g_strncasecmp(p, "Answered", 8) == 0) {
1935                         MSG_SET_PERM_FLAGS(flags, MSG_REPLIED);
1936                 }
1937         }
1938
1939         return flags;
1940 }
1941
1942 static MsgInfo *imap_parse_envelope(SockInfo *sock, GString *line_str)
1943 {
1944         MsgInfo *msginfo;
1945         gchar buf[IMAPBUFSIZE];
1946         gchar tmp[IMAPBUFSIZE];
1947         gchar *cur_pos;
1948         gint msgnum;
1949         guint32 uid = 0;
1950         size_t size = 0;
1951         gchar *date = NULL;
1952         time_t date_t = 0;
1953         gchar *subject = NULL;
1954         gchar *tmp_from;
1955         gchar *tmp_fromname;
1956         gchar *from = NULL;
1957         gchar *fromname = NULL;
1958         gchar *tmp_to;
1959         gchar *to = NULL;
1960         gchar *inreplyto = NULL;
1961         gchar *msgid = NULL;
1962         MsgFlags flags = {0, 0};
1963
1964         g_return_val_if_fail(line_str != NULL, NULL);
1965         g_return_val_if_fail(line_str->str[0] == '*' &&
1966                              line_str->str[1] == ' ', NULL);
1967
1968         cur_pos = line_str->str + 2;
1969
1970 #define PARSE_ONE_ELEMENT(ch) \
1971 { \
1972         cur_pos = strchr_cpy(cur_pos, ch, buf, sizeof(buf)); \
1973         g_return_val_if_fail(cur_pos != NULL, NULL); \
1974 }
1975
1976         PARSE_ONE_ELEMENT(' ');
1977         msgnum = atoi(buf);
1978
1979         PARSE_ONE_ELEMENT(' ');
1980         g_return_val_if_fail(!strcmp(buf, "FETCH"), NULL);
1981
1982         g_return_val_if_fail(*cur_pos == '(', NULL);
1983         cur_pos++;
1984
1985         while (*cur_pos != '\0' && *cur_pos != ')') {
1986                 while (*cur_pos == ' ') cur_pos++;
1987
1988                 if (!strncmp(cur_pos, "UID ", 4)) {
1989                         cur_pos += 4;
1990                         uid = strtoul(cur_pos, &cur_pos, 10);
1991                 } else if (!strncmp(cur_pos, "FLAGS ", 6)) {
1992                         cur_pos += 6;
1993                         g_return_val_if_fail(*cur_pos == '(', NULL);
1994                         cur_pos++;
1995                         PARSE_ONE_ELEMENT(')');
1996                         flags = imap_parse_flags(buf);
1997                 } else if (!strncmp(cur_pos, "RFC822.SIZE ", 12)) {
1998                         cur_pos += 12;
1999                         size = strtol(cur_pos, &cur_pos, 10);
2000                 } else if (!strncmp(cur_pos, "ENVELOPE ", 9)) {
2001                         cur_pos += 9;
2002                         g_return_val_if_fail(*cur_pos == '(', NULL);
2003                         cur_pos = imap_parse_atom
2004                                 (sock, cur_pos + 1, buf, sizeof(buf), line_str);
2005                         if (buf[0] != '\0') {
2006                                 Xstrdup_a(date, buf, return NULL);
2007                                 date_t = procheader_date_parse(NULL, date, 0);
2008                         }
2009
2010                         cur_pos = imap_parse_atom
2011                                 (sock, cur_pos, buf, sizeof(buf), line_str);
2012                         if (buf[0] != '\0') {
2013                                 conv_unmime_header(tmp, sizeof(tmp), buf, NULL);
2014                                 Xstrdup_a(subject, tmp, return NULL);
2015                         }
2016
2017                         g_return_val_if_fail(*cur_pos == ' ', NULL);
2018                         cur_pos = imap_parse_address(sock, cur_pos + 1,
2019                                                      &tmp_from, &tmp_fromname,
2020                                                      line_str);
2021                         g_return_val_if_fail(cur_pos != NULL, NULL);
2022                         if (tmp_from && *tmp_from != '\0')
2023                                 Xstrdup_a(from, tmp_from,
2024                                           {g_free(tmp_from);
2025                                            g_free(tmp_fromname);
2026                                            return NULL;});
2027                         if (tmp_fromname && *tmp_fromname != '\0')
2028                                 Xstrdup_a(fromname, tmp_fromname,
2029                                           {g_free(tmp_from);
2030                                            g_free(tmp_fromname);
2031                                            return NULL;});
2032                         g_free(tmp_from);
2033                         g_free(tmp_fromname);
2034
2035 #define SKIP_ONE_ELEMENT() \
2036 { \
2037         g_return_val_if_fail(*cur_pos == ' ', NULL); \
2038         cur_pos = imap_parse_address(sock, cur_pos + 1, NULL, NULL, \
2039                                      line_str); \
2040         g_return_val_if_fail(cur_pos != NULL, NULL); \
2041 }
2042
2043                         /* skip sender and reply-to */
2044                         SKIP_ONE_ELEMENT();
2045                         SKIP_ONE_ELEMENT();
2046
2047                         g_return_val_if_fail(*cur_pos == ' ', NULL);
2048                         cur_pos = imap_parse_address(sock, cur_pos + 1,
2049                                                      &tmp_to, NULL, line_str);
2050                         g_return_val_if_fail(cur_pos != NULL, NULL);
2051                         Xstrdup_a(to, tmp_to, {g_free(tmp_to); return NULL;});
2052                         g_free(tmp_to);
2053
2054                         /* skip Cc and Bcc */
2055                         SKIP_ONE_ELEMENT();
2056                         SKIP_ONE_ELEMENT();
2057
2058 #undef SKIP_ONE_ELEMENT
2059
2060                         g_return_val_if_fail(*cur_pos == ' ', NULL);
2061                         cur_pos = imap_parse_atom
2062                                 (sock, cur_pos, buf, sizeof(buf), line_str);
2063                         g_return_val_if_fail(cur_pos != NULL, NULL);
2064                         if (buf[0] != '\0') {
2065                                 eliminate_parenthesis(buf, '(', ')');
2066                                 extract_parenthesis(buf, '<', '>');
2067                                 remove_space(buf);
2068                                 Xstrdup_a(inreplyto, buf, return NULL);
2069                         }
2070
2071                         g_return_val_if_fail(*cur_pos == ' ', NULL);
2072                         cur_pos = imap_parse_atom
2073                                 (sock, cur_pos, buf, sizeof(buf), line_str);
2074                         g_return_val_if_fail(cur_pos != NULL, NULL);
2075                         if (buf[0] != '\0') {
2076                                 extract_parenthesis(buf, '<', '>');
2077                                 remove_space(buf);
2078                                 Xstrdup_a(msgid, buf, return NULL);
2079                         }
2080
2081                         g_return_val_if_fail(*cur_pos == ')', NULL);
2082                         cur_pos++;
2083                 } else {
2084                         g_warning("invalid FETCH response: %s\n", cur_pos);
2085                         break;
2086                 }
2087         }
2088
2089         msginfo = g_new0(MsgInfo, 1);
2090         msginfo->msgnum = uid;
2091         msginfo->size = size;
2092         msginfo->date = g_strdup(date);
2093         msginfo->date_t = date_t;
2094         msginfo->subject = g_strdup(subject);
2095         msginfo->from = g_strdup(from);
2096         msginfo->fromname = g_strdup(fromname);
2097         msginfo->to = g_strdup(to);
2098         msginfo->inreplyto = g_strdup(inreplyto);
2099         msginfo->msgid = g_strdup(msgid);
2100         msginfo->flags = flags;
2101
2102         return msginfo;
2103 }
2104
2105 gint imap_msg_set_perm_flags(MsgInfo *msginfo, MsgPermFlags flags)
2106 {
2107         Folder *folder;
2108         IMAPSession *session;
2109         IMAPFlags iflags = 0;
2110         gint ok = IMAP_SUCCESS;
2111
2112         g_return_val_if_fail(msginfo != NULL, -1);
2113         g_return_val_if_fail(MSG_IS_IMAP(msginfo->flags), -1);
2114         g_return_val_if_fail(msginfo->folder != NULL, -1);
2115         g_return_val_if_fail(msginfo->folder->folder != NULL, -1);
2116
2117         folder = msginfo->folder->folder;
2118         g_return_val_if_fail(folder->type == F_IMAP, -1);
2119
2120         session = imap_session_get(folder);
2121         if (!session) return -1;
2122
2123         if (flags & MSG_MARKED)  iflags |= IMAP_FLAG_FLAGGED;
2124         if (flags & MSG_REPLIED) iflags |= IMAP_FLAG_ANSWERED;
2125         if (iflags) {
2126                 ok = imap_set_message_flags(session, msginfo->msgnum,
2127                                             msginfo->msgnum, iflags, TRUE);
2128                 if (ok != IMAP_SUCCESS) return ok;
2129         }
2130
2131         if (flags & MSG_UNREAD)
2132                 ok = imap_set_message_flags(session, msginfo->msgnum,
2133                                             msginfo->msgnum, IMAP_FLAG_SEEN,
2134                                             FALSE);
2135         return ok;
2136 }
2137
2138 gint imap_msg_unset_perm_flags(MsgInfo *msginfo, MsgPermFlags flags)
2139 {
2140         Folder *folder;
2141         IMAPSession *session;
2142         IMAPFlags iflags = 0;
2143         gint ok = IMAP_SUCCESS;
2144
2145         g_return_val_if_fail(msginfo != NULL, -1);
2146         g_return_val_if_fail(MSG_IS_IMAP(msginfo->flags), -1);
2147         g_return_val_if_fail(msginfo->folder != NULL, -1);
2148         g_return_val_if_fail(msginfo->folder->folder != NULL, -1);
2149
2150         folder = msginfo->folder->folder;
2151         g_return_val_if_fail(folder->type == F_IMAP, -1);
2152
2153         session = imap_session_get(folder);
2154         if (!session) return -1;
2155
2156         if (flags & MSG_MARKED)  iflags |= IMAP_FLAG_FLAGGED;
2157         if (flags & MSG_REPLIED) iflags |= IMAP_FLAG_ANSWERED;
2158         if (iflags) {
2159                 ok = imap_set_message_flags(session, msginfo->msgnum,
2160                                             msginfo->msgnum, iflags, FALSE);
2161                 if (ok != IMAP_SUCCESS) return ok;
2162         }
2163
2164         if (flags & MSG_UNREAD)
2165                 ok = imap_set_message_flags(session, msginfo->msgnum,
2166                                             msginfo->msgnum, IMAP_FLAG_SEEN,
2167                                             TRUE);
2168         return ok;
2169 }
2170
2171 static gint imap_set_message_flags(IMAPSession *session,
2172                                    guint32 first_uid,
2173                                    guint32 last_uid,
2174                                    IMAPFlags flags,
2175                                    gboolean is_set)
2176 {
2177         GString *buf;
2178         gint ok;
2179
2180         buf = g_string_new(is_set ? "+FLAGS (" : "-FLAGS (");
2181
2182         if (IMAP_IS_SEEN(flags))        g_string_append(buf, "\\Seen ");
2183         if (IMAP_IS_ANSWERED(flags))    g_string_append(buf, "\\Answered ");
2184         if (IMAP_IS_FLAGGED(flags))     g_string_append(buf, "\\Flagged ");
2185         if (IMAP_IS_DELETED(flags))     g_string_append(buf, "\\Deleted ");
2186         if (IMAP_IS_DRAFT(flags))       g_string_append(buf, "\\Draft");
2187
2188         if (buf->str[buf->len - 1] == ' ')
2189                 g_string_truncate(buf, buf->len - 1);
2190
2191         g_string_append_c(buf, ')');
2192
2193         ok = imap_cmd_store(SESSION(session)->sock, first_uid, last_uid,
2194                             buf->str);
2195         g_string_free(buf, TRUE);
2196
2197         return ok;
2198 }
2199
2200 static gint imap_select(IMAPSession *session, IMAPFolder *folder,
2201                         const gchar *path,
2202                         gint *exists, gint *recent, gint *unseen,
2203                         guint32 *uid_validity)
2204 {
2205         gchar *real_path;
2206         gint ok;
2207         gint exists_, recent_, unseen_, uid_validity_;
2208
2209         if (!exists || !recent || !unseen || !uid_validity) {
2210                 if (session->mbox && strcmp(session->mbox, path) == 0)
2211                         return IMAP_SUCCESS;
2212                 exists = &exists_;
2213                 recent = &recent_;
2214                 unseen = &unseen_;
2215                 uid_validity = &uid_validity_;
2216         }
2217
2218         g_free(session->mbox);
2219         session->mbox = NULL;
2220
2221         real_path = imap_get_real_path(folder, path);
2222         ok = imap_cmd_select(SESSION(session)->sock, real_path,
2223                              exists, recent, unseen, uid_validity);
2224         if (ok != IMAP_SUCCESS)
2225                 log_warning(_("can't select folder: %s\n"), real_path);
2226         else
2227                 session->mbox = g_strdup(path);
2228         g_free(real_path);
2229
2230         return ok;
2231 }
2232
2233 #define THROW(err) { ok = err; goto catch; }
2234
2235 static gint imap_get_uid(IMAPSession *session, gint msgnum, guint32 *uid)
2236 {
2237         gint ok;
2238         GPtrArray *argbuf;
2239         gchar *str;
2240         gint num;
2241
2242         *uid = 0;
2243         argbuf = g_ptr_array_new();
2244
2245         imap_cmd_gen_send(SESSION(session)->sock, "FETCH %d (UID)", msgnum);
2246         if ((ok = imap_cmd_ok(SESSION(session)->sock, argbuf)) != IMAP_SUCCESS)
2247                 THROW(ok);
2248
2249         str = search_array_contain_str(argbuf, "FETCH");
2250         if (!str) THROW(IMAP_ERROR);
2251
2252         if (sscanf(str, "%d FETCH (UID %d)", &num, uid) != 2 ||
2253             num != msgnum) {
2254                 g_warning("imap_get_uid(): invalid FETCH line.\n");
2255                 THROW(IMAP_ERROR);
2256         }
2257
2258 catch:
2259         ptr_array_free_strings(argbuf);
2260         g_ptr_array_free(argbuf, TRUE);
2261
2262         return ok;
2263 }
2264
2265 static gint imap_status(IMAPSession *session, IMAPFolder *folder,
2266                         const gchar *path,
2267                         gint *messages, gint *recent,
2268                         guint32 *uid_next, guint32 *uid_validity,
2269                         gint *unseen)
2270 {
2271         gchar *real_path;
2272         gchar *real_path_;
2273         gint ok;
2274         GPtrArray *argbuf;
2275         gchar *str;
2276
2277         *messages = *recent = *uid_next = *uid_validity = *unseen = 0;
2278
2279         argbuf = g_ptr_array_new();
2280
2281         real_path = imap_get_real_path(folder, path);
2282         QUOTE_IF_REQUIRED(real_path_, real_path);
2283         imap_cmd_gen_send(SESSION(session)->sock, "STATUS %s "
2284                           "(MESSAGES RECENT UIDNEXT UIDVALIDITY UNSEEN)",
2285                           real_path_);
2286
2287         ok = imap_cmd_ok(SESSION(session)->sock, argbuf);
2288         if (ok != IMAP_SUCCESS) THROW(ok);
2289
2290         str = search_array_str(argbuf, "STATUS");
2291         if (!str) THROW(IMAP_ERROR);
2292
2293         str = strchr(str, '(');
2294         if (!str) THROW(IMAP_ERROR);
2295         str++;
2296         while (*str != '\0' && *str != ')') {
2297                 while (*str == ' ') str++;
2298
2299                 if (!strncmp(str, "MESSAGES ", 9)) {
2300                         str += 9;
2301                         *messages = strtol(str, &str, 10);
2302                 } else if (!strncmp(str, "RECENT ", 7)) {
2303                         str += 7;
2304                         *recent = strtol(str, &str, 10);
2305                 } else if (!strncmp(str, "UIDNEXT ", 8)) {
2306                         str += 8;
2307                         *uid_next = strtoul(str, &str, 10);
2308                 } else if (!strncmp(str, "UIDVALIDITY ", 12)) {
2309                         str += 12;
2310                         *uid_validity = strtoul(str, &str, 10);
2311                 } else if (!strncmp(str, "UNSEEN ", 7)) {
2312                         str += 7;
2313                         *unseen = strtol(str, &str, 10);
2314                 } else {
2315                         g_warning("invalid STATUS response: %s\n", str);
2316                         break;
2317                 }
2318         }
2319
2320 catch:
2321         g_free(real_path);
2322         ptr_array_free_strings(argbuf);
2323         g_ptr_array_free(argbuf, TRUE);
2324
2325         return ok;
2326 }
2327
2328 #undef THROW
2329
2330
2331 /* low-level IMAP4rev1 commands */
2332
2333 static gint imap_cmd_login(SockInfo *sock,
2334                            const gchar *user, const gchar *pass)
2335 {
2336         gchar *user_, *pass_;
2337         gint ok;
2338
2339         QUOTE_IF_REQUIRED(user_, user);
2340         QUOTE_IF_REQUIRED(pass_, pass);
2341         imap_cmd_gen_send(sock, "LOGIN %s %s", user_, pass_);
2342
2343         ok = imap_cmd_ok(sock, NULL);
2344         if (ok != IMAP_SUCCESS)
2345                 log_warning(_("IMAP4 login failed.\n"));
2346
2347         return ok;
2348 }
2349
2350 static gint imap_cmd_logout(SockInfo *sock)
2351 {
2352         imap_cmd_gen_send(sock, "LOGOUT");
2353         return imap_cmd_ok(sock, NULL);
2354 }
2355
2356 /* Send a NOOP, and examine the server's response to see whether this
2357  * connection is pre-authenticated or not. */
2358 static gint imap_greeting(SockInfo *sock, gboolean *is_preauth)
2359 {
2360         GPtrArray *argbuf;
2361         gint r;
2362
2363         imap_cmd_gen_send(sock, "NOOP");
2364         argbuf = g_ptr_array_new(); /* will hold messages sent back */
2365         r = imap_cmd_ok(sock, argbuf);
2366         *is_preauth = search_array_starts(argbuf, "PREAUTH") != NULL;
2367
2368         return r;
2369 }
2370
2371 static gint imap_cmd_noop(SockInfo *sock)
2372 {
2373         imap_cmd_gen_send(sock, "NOOP");
2374         return imap_cmd_ok(sock, NULL);
2375 }
2376
2377 #define THROW(err) { ok = err; goto catch; }
2378
2379 static gint imap_cmd_namespace(SockInfo *sock, gchar **ns_str)
2380 {
2381         gint ok;
2382         GPtrArray *argbuf;
2383         gchar *str;
2384
2385         argbuf = g_ptr_array_new();
2386
2387         imap_cmd_gen_send(sock, "NAMESPACE");
2388         if ((ok = imap_cmd_ok(sock, argbuf)) != IMAP_SUCCESS) THROW(ok);
2389
2390         str = search_array_str(argbuf, "NAMESPACE");
2391         if (!str) THROW(IMAP_ERROR);
2392
2393         *ns_str = g_strdup(str);
2394
2395 catch:
2396         ptr_array_free_strings(argbuf);
2397         g_ptr_array_free(argbuf, TRUE);
2398
2399         return ok;
2400 }
2401
2402 #undef THROW
2403
2404 static gint imap_cmd_list(SockInfo *sock, const gchar *ref,
2405                           const gchar *mailbox, GPtrArray *argbuf)
2406 {
2407         gchar *ref_, *mailbox_;
2408
2409         if (!ref) ref = "\"\"";
2410         if (!mailbox) mailbox = "\"\"";
2411
2412         QUOTE_IF_REQUIRED(ref_, ref);
2413         QUOTE_IF_REQUIRED(mailbox_, mailbox);
2414         imap_cmd_gen_send(sock, "LIST %s %s", ref_, mailbox_);
2415
2416         return imap_cmd_ok(sock, argbuf);
2417 }
2418
2419 #define THROW goto catch
2420
2421 static gint imap_cmd_do_select(SockInfo *sock, const gchar *folder,
2422                                gboolean examine,
2423                                gint *exists, gint *recent, gint *unseen,
2424                                guint32 *uid_validity)
2425 {
2426         gint ok;
2427         gchar *resp_str;
2428         GPtrArray *argbuf;
2429         gchar *select_cmd;
2430         gchar *folder_;
2431
2432         *exists = *recent = *unseen = *uid_validity = 0;
2433         argbuf = g_ptr_array_new();
2434
2435         if (examine)
2436                 select_cmd = "EXAMINE";
2437         else
2438                 select_cmd = "SELECT";
2439
2440         QUOTE_IF_REQUIRED(folder_, folder);
2441         imap_cmd_gen_send(sock, "%s %s", select_cmd, folder_);
2442
2443         if ((ok = imap_cmd_ok(sock, argbuf)) != IMAP_SUCCESS) THROW;
2444
2445         resp_str = search_array_contain_str(argbuf, "EXISTS");
2446         if (resp_str) {
2447                 if (sscanf(resp_str,"%d EXISTS", exists) != 1) {
2448                         g_warning("imap_cmd_select(): invalid EXISTS line.\n");
2449                         THROW;
2450                 }
2451         }
2452
2453         resp_str = search_array_contain_str(argbuf, "RECENT");
2454         if (resp_str) {
2455                 if (sscanf(resp_str, "%d RECENT", recent) != 1) {
2456                         g_warning("imap_cmd_select(): invalid RECENT line.\n");
2457                         THROW;
2458                 }
2459         }
2460
2461         resp_str = search_array_contain_str(argbuf, "UIDVALIDITY");
2462         if (resp_str) {
2463                 if (sscanf(resp_str, "OK [UIDVALIDITY %u] ", uid_validity)
2464                     != 1) {
2465                         g_warning("imap_cmd_select(): invalid UIDVALIDITY line.\n");
2466                         THROW;
2467                 }
2468         }
2469
2470         resp_str = search_array_contain_str(argbuf, "UNSEEN");
2471         if (resp_str) {
2472                 if (sscanf(resp_str, "OK [UNSEEN %d] ", unseen) != 1) {
2473                         g_warning("imap_cmd_select(): invalid UNSEEN line.\n");
2474                         THROW;
2475                 }
2476         }
2477
2478 catch:
2479         ptr_array_free_strings(argbuf);
2480         g_ptr_array_free(argbuf, TRUE);
2481
2482         return ok;
2483 }
2484
2485 static gint imap_cmd_select(SockInfo *sock, const gchar *folder,
2486                             gint *exists, gint *recent, gint *unseen,
2487                             guint32 *uid_validity)
2488 {
2489         return imap_cmd_do_select(sock, folder, FALSE,
2490                                   exists, recent, unseen, uid_validity);
2491 }
2492
2493 static gint imap_cmd_examine(SockInfo *sock, const gchar *folder,
2494                              gint *exists, gint *recent, gint *unseen,
2495                              guint32 *uid_validity)
2496 {
2497         return imap_cmd_do_select(sock, folder, TRUE,
2498                                   exists, recent, unseen, uid_validity);
2499 }
2500
2501 #undef THROW
2502
2503 static gint imap_cmd_create(SockInfo *sock, const gchar *folder)
2504 {
2505         gchar *folder_;
2506
2507         QUOTE_IF_REQUIRED(folder_, folder);
2508         imap_cmd_gen_send(sock, "CREATE %s", folder_);
2509
2510         return imap_cmd_ok(sock, NULL);
2511 }
2512
2513 static gint imap_cmd_rename(SockInfo *sock, const gchar *old_folder,
2514                             const gchar *new_folder)
2515 {
2516         gchar *old_folder_, *new_folder_;
2517
2518         QUOTE_IF_REQUIRED(old_folder_, old_folder);
2519         QUOTE_IF_REQUIRED(new_folder_, new_folder);
2520         imap_cmd_gen_send(sock, "RENAME %s %s", old_folder_, new_folder_);
2521
2522         return imap_cmd_ok(sock, NULL);
2523 }
2524
2525 static gint imap_cmd_delete(SockInfo *sock, const gchar *folder)
2526 {
2527         gchar *folder_;
2528
2529         QUOTE_IF_REQUIRED(folder_, folder);
2530         imap_cmd_gen_send(sock, "DELETE %s", folder_);
2531
2532         return imap_cmd_ok(sock, NULL);
2533 }
2534
2535 static gint imap_cmd_fetch(SockInfo *sock, guint32 uid, const gchar *filename)
2536 {
2537         gint ok;
2538         gchar buf[IMAPBUFSIZE];
2539         gchar *cur_pos;
2540         gchar size_str[32];
2541         glong size_num;
2542
2543         g_return_val_if_fail(filename != NULL, IMAP_ERROR);
2544
2545         imap_cmd_gen_send(sock, "UID FETCH %d BODY[]", uid);
2546
2547         while ((ok = imap_cmd_gen_recv(sock, buf, sizeof(buf)))
2548                == IMAP_SUCCESS) {
2549                 if (buf[0] != '*' || buf[1] != ' ')
2550                         return IMAP_ERROR;
2551                 if (strstr(buf, "FETCH") != NULL)
2552                         break;
2553         }
2554         if (ok != IMAP_SUCCESS)
2555                 return ok;
2556
2557         cur_pos = strchr(buf, '{');
2558         g_return_val_if_fail(cur_pos != NULL, IMAP_ERROR);
2559         cur_pos = strchr_cpy(cur_pos + 1, '}', size_str, sizeof(size_str));
2560         g_return_val_if_fail(cur_pos != NULL, IMAP_ERROR);
2561         size_num = atol(size_str);
2562
2563         if (*cur_pos != '\0') return IMAP_ERROR;
2564
2565         if (recv_bytes_write_to_file(sock, size_num, filename) != 0)
2566                 return IMAP_ERROR;
2567
2568         if (imap_cmd_gen_recv(sock, buf, sizeof(buf)) != IMAP_SUCCESS)
2569                 return IMAP_ERROR;
2570
2571         if (buf[0] == '\0' || buf[strlen(buf) - 1] != ')')
2572                 return IMAP_ERROR;
2573
2574         ok = imap_cmd_ok(sock, NULL);
2575
2576         return ok;
2577 }
2578
2579 static gint imap_cmd_append(SockInfo *sock, const gchar *destfolder,
2580                             const gchar *file)
2581 {
2582         gint ok;
2583         gint size;
2584         gchar *destfolder_;
2585         gchar buf[BUFFSIZE];
2586         FILE *fp;
2587
2588         g_return_val_if_fail(file != NULL, IMAP_ERROR);
2589
2590         size = get_file_size_as_crlf(file);
2591         if ((fp = fopen(file, "rb")) == NULL) {
2592                 FILE_OP_ERROR(file, "fopen");
2593                 return -1;
2594         }
2595         QUOTE_IF_REQUIRED(destfolder_, destfolder);
2596         imap_cmd_gen_send(sock, "APPEND %s (\\Seen) {%d}", destfolder_, size);
2597
2598         ok = imap_cmd_gen_recv(sock, buf, sizeof(buf));
2599         if (ok != IMAP_SUCCESS || buf[0] != '+' || buf[1] != ' ') {
2600                 log_warning(_("can't append %s to %s\n"), file, destfolder_);
2601                 fclose(fp);
2602                 return IMAP_ERROR;
2603         }
2604
2605         log_print("IMAP4> %s\n", _("(sending file...)"));
2606
2607         while (fgets(buf, sizeof(buf), fp) != NULL) {
2608                 strretchomp(buf);
2609                 if (sock_puts(sock, buf) < 0) {
2610                         fclose(fp);
2611                         sock_close(sock);
2612                         return -1;
2613                 }
2614         }
2615
2616         if (ferror(fp)) {
2617                 FILE_OP_ERROR(file, "fgets");
2618                 fclose(fp);
2619                 sock_close(sock);
2620                 return -1;
2621         }
2622
2623         sock_puts(sock, "");
2624
2625         fclose(fp);
2626         return imap_cmd_ok(sock, NULL);
2627 }
2628
2629 static gint imap_cmd_copy(SockInfo *sock, guint32 uid, const gchar *destfolder)
2630 {
2631         gint ok;
2632         gchar *destfolder_;
2633
2634         g_return_val_if_fail(destfolder != NULL, IMAP_ERROR);
2635
2636         QUOTE_IF_REQUIRED(destfolder_, destfolder);
2637         imap_cmd_gen_send(sock, "UID COPY %d %s", uid, destfolder_);
2638
2639         ok = imap_cmd_ok(sock, NULL);
2640         if (ok != IMAP_SUCCESS) {
2641                 log_warning(_("can't copy %d to %s\n"), uid, destfolder_);
2642                 return -1;
2643         }
2644
2645         return ok;
2646 }
2647
2648 gint imap_cmd_envelope(SockInfo *sock, guint32 first_uid, guint32 last_uid)
2649 {
2650         imap_cmd_gen_send
2651                 (sock, "UID FETCH %d:%d (UID FLAGS RFC822.SIZE ENVELOPE)",
2652                  first_uid, last_uid);
2653
2654         return IMAP_SUCCESS;
2655 }
2656
2657 static gint imap_cmd_store(SockInfo *sock, guint32 first_uid, guint32 last_uid,
2658                            gchar *sub_cmd)
2659 {
2660         gint ok;
2661
2662         imap_cmd_gen_send(sock, "UID STORE %d:%d %s",
2663                           first_uid, last_uid, sub_cmd);
2664
2665         if ((ok = imap_cmd_ok(sock, NULL)) != IMAP_SUCCESS) {
2666                 log_warning(_("error while imap command: STORE %d:%d %s\n"),
2667                             first_uid, last_uid, sub_cmd);
2668                 return ok;
2669         }
2670
2671         return IMAP_SUCCESS;
2672 }
2673
2674 static gint imap_cmd_expunge(SockInfo *sock)
2675 {
2676         gint ok;
2677
2678         imap_cmd_gen_send(sock, "EXPUNGE");
2679         if ((ok = imap_cmd_ok(sock, NULL)) != IMAP_SUCCESS) {
2680                 log_warning(_("error while imap command: EXPUNGE\n"));
2681                 return ok;
2682         }
2683
2684         return IMAP_SUCCESS;
2685 }
2686
2687 static gint imap_cmd_ok(SockInfo *sock, GPtrArray *argbuf)
2688 {
2689         gint ok;
2690         gchar buf[IMAPBUFSIZE];
2691         gint cmd_num;
2692         gchar cmd_status[IMAPBUFSIZE];
2693
2694         while ((ok = imap_cmd_gen_recv(sock, buf, sizeof(buf)))
2695                == IMAP_SUCCESS) {
2696                 if (buf[0] == '*' && buf[1] == ' ') {
2697                         if (argbuf)
2698                                 g_ptr_array_add(argbuf, g_strdup(buf + 2));
2699                         continue;
2700                 }
2701
2702                 if (sscanf(buf, "%d %s", &cmd_num, cmd_status) < 2)
2703                         return IMAP_ERROR;
2704                 else if (cmd_num == imap_cmd_count &&
2705                          !strcmp(cmd_status, "OK")) {
2706                         if (argbuf)
2707                                 g_ptr_array_add(argbuf, g_strdup(buf));
2708                         return IMAP_SUCCESS;
2709                 } else
2710                         return IMAP_ERROR;
2711         }
2712
2713         return ok;
2714 }
2715
2716 static void imap_cmd_gen_send(SockInfo *sock, const gchar *format, ...)
2717 {
2718         gchar buf[IMAPBUFSIZE];
2719         gchar tmp[IMAPBUFSIZE];
2720         gchar *p;
2721         va_list args;
2722
2723         va_start(args, format);
2724         g_vsnprintf(tmp, sizeof(tmp), format, args);
2725         va_end(args);
2726
2727         imap_cmd_count++;
2728
2729         g_snprintf(buf, sizeof(buf), "%d %s\r\n", imap_cmd_count, tmp);
2730         if (!strncasecmp(tmp, "LOGIN ", 6) && (p = strchr(tmp + 6, ' '))) {
2731                 *p = '\0';
2732                 log_print("IMAP4> %d %s ********\n", imap_cmd_count, tmp);
2733         } else
2734                 log_print("IMAP4> %d %s\n", imap_cmd_count, tmp);
2735
2736         sock_write(sock, buf, strlen(buf));
2737 }
2738
2739 static gint imap_cmd_gen_recv(SockInfo *sock, gchar *buf, gint size)
2740 {
2741         if (sock_gets(sock, buf, size) == -1)
2742                 return IMAP_SOCKET;
2743
2744         strretchomp(buf);
2745
2746         log_print("IMAP4< %s\n", buf);
2747
2748         return IMAP_SUCCESS;
2749 }
2750
2751
2752 /* misc utility functions */
2753
2754 static gchar *strchr_cpy(const gchar *src, gchar ch, gchar *dest, gint len)
2755 {
2756         gchar *tmp;
2757
2758         dest[0] = '\0';
2759         tmp = strchr(src, ch);
2760         if (!tmp)
2761                 return NULL;
2762
2763         memcpy(dest, src, MIN(tmp - src, len - 1));
2764         dest[MIN(tmp - src, len - 1)] = '\0';
2765
2766         return tmp + 1;
2767 }
2768
2769 static gchar *get_quoted(const gchar *src, gchar ch, gchar *dest, gint len)
2770 {
2771         const gchar *p = src;
2772         gint n = 0;
2773
2774         g_return_val_if_fail(*p == ch, NULL);
2775
2776         *dest = '\0';
2777         p++;
2778
2779         while (*p != '\0' && *p != ch) {
2780                 if (n < len - 1) {
2781                         if (*p == '\\' && *(p + 1) != '\0')
2782                                 p++;
2783                         *dest++ = *p++;
2784                 } else
2785                         p++;
2786                 n++;
2787         }
2788
2789         *dest = '\0';
2790         return (gchar *)(*p == ch ? p + 1 : p);
2791 }
2792
2793 static gchar *search_array_starts(GPtrArray *array, const gchar *str)
2794 {
2795         gint i;
2796         size_t len;
2797
2798         g_return_val_if_fail(str != NULL, NULL);
2799         len = strlen(str);
2800         for (i = 0; i < array->len; i++) {
2801                 gchar *tmp;
2802                 tmp = g_ptr_array_index(array, i);
2803                 if (strncmp(tmp, str, len) == 0)
2804                         return tmp;
2805         }
2806         return NULL;
2807 }
2808
2809 static gchar *search_array_contain_str(GPtrArray *array, gchar *str)
2810 {
2811         gint i;
2812
2813         for (i = 0; i < array->len; i++) {
2814                 gchar *tmp;
2815
2816                 tmp = g_ptr_array_index(array, i);
2817                 if (strstr(tmp, str) != NULL)
2818                         return tmp;
2819         }
2820
2821         return NULL;
2822 }
2823
2824 static gchar *search_array_str(GPtrArray *array, gchar *str)
2825 {
2826         gint i;
2827         gint len;
2828
2829         len = strlen(str);
2830
2831         for (i = 0; i < array->len; i++) {
2832                 gchar *tmp;
2833
2834                 tmp = g_ptr_array_index(array, i);
2835                 if (!strncmp(tmp, str, len))
2836                         return tmp;
2837         }
2838
2839         return NULL;
2840 }
2841
2842 static void imap_path_separator_subst(gchar *str, gchar separator)
2843 {
2844         gchar *p;
2845         gboolean in_escape = FALSE;
2846
2847         if (!separator || separator == '/') return;
2848
2849         for (p = str; *p != '\0'; p++) {
2850                 if (*p == '/' && !in_escape)
2851                         *p = separator;
2852                 else if (*p == '&' && *(p + 1) != '-' && !in_escape)
2853                         in_escape = TRUE;
2854                 else if (*p == '-' && in_escape)
2855                         in_escape = FALSE;
2856         }
2857 }
2858
2859 static gchar *imap_modified_utf7_to_locale(const gchar *mutf7_str)
2860 {
2861 #if !HAVE_LIBJCONV
2862         return g_strdup(mutf7_str);
2863 #else
2864         static iconv_t cd = (iconv_t)-1;
2865         static gboolean iconv_ok = TRUE;
2866         GString *norm_utf7;
2867         gchar *norm_utf7_p;
2868         size_t norm_utf7_len;
2869         const gchar *p;
2870         gchar *to_str, *to_p;
2871         size_t to_len;
2872         gboolean in_escape = FALSE;
2873
2874         if (!iconv_ok) return g_strdup(mutf7_str);
2875
2876         if (cd == (iconv_t)-1) {
2877                 cd = iconv_open(conv_get_current_charset_str(), "UTF-7");
2878                 if (cd == (iconv_t)-1) {
2879                         g_warning(_("iconv cannot convert UTF-7 to %s\n"),
2880                                   conv_get_current_charset_str());
2881                         iconv_ok = FALSE;
2882                         return g_strdup(mutf7_str);
2883                 }
2884         }
2885
2886         norm_utf7 = g_string_new(NULL);
2887
2888         for (p = mutf7_str; *p != '\0'; p++) {
2889                 /* replace: '&'  -> '+',
2890                             "&-" -> '&',
2891                             escaped ','  -> '/' */
2892                 if (!in_escape && *p == '&') {
2893                         if (*(p + 1) != '-') {
2894                                 g_string_append_c(norm_utf7, '+');
2895                                 in_escape = TRUE;
2896                         } else {
2897                                 g_string_append_c(norm_utf7, '&');
2898                                 p++;
2899                         }
2900                 } else if (in_escape && *p == ',') {
2901                         g_string_append_c(norm_utf7, '/');
2902                 } else if (in_escape && *p == '-') {
2903                         g_string_append_c(norm_utf7, '-');
2904                         in_escape = FALSE;
2905                 } else {
2906                         g_string_append_c(norm_utf7, *p);
2907                 }
2908         }
2909
2910         norm_utf7_p = norm_utf7->str;
2911         norm_utf7_len = norm_utf7->len;
2912         to_len = strlen(mutf7_str) * 5;
2913         to_p = to_str = g_malloc(to_len + 1);
2914
2915         if (iconv(cd, &norm_utf7_p, &norm_utf7_len, &to_p, &to_len) == -1) {
2916                 g_warning(_("iconv cannot convert UTF-7 to %s\n"),
2917                           conv_get_current_charset_str());
2918                 g_string_free(norm_utf7, TRUE);
2919                 g_free(to_str);
2920                 return g_strdup(mutf7_str);
2921         }
2922
2923         /* second iconv() call for flushing */
2924         iconv(cd, NULL, NULL, &to_p, &to_len);
2925         g_string_free(norm_utf7, TRUE);
2926         *to_p = '\0';
2927
2928         return to_str;
2929 #endif /* !HAVE_LIBJCONV */
2930 }
2931
2932 static gchar *imap_locale_to_modified_utf7(const gchar *from)
2933 {
2934 #if !HAVE_LIBJCONV
2935         return g_strdup(from);
2936 #else
2937         static iconv_t cd = (iconv_t)-1;
2938         static gboolean iconv_ok = TRUE;
2939         gchar *norm_utf7, *norm_utf7_p;
2940         size_t from_len, norm_utf7_len;
2941         GString *to_str;
2942         gchar *from_tmp, *to, *p;
2943         gboolean in_escape = FALSE;
2944
2945         if (!iconv_ok) return g_strdup(from);
2946
2947         if (cd == (iconv_t)-1) {
2948                 cd = iconv_open("UTF-7", conv_get_current_charset_str());
2949                 if (cd == (iconv_t)-1) {
2950                         g_warning(_("iconv cannot convert %s to UTF-7\n"),
2951                                   conv_get_current_charset_str());
2952                         iconv_ok = FALSE;
2953                         return g_strdup(from);
2954                 }
2955         }
2956
2957         Xstrdup_a(from_tmp, from, return g_strdup(from));
2958         from_len = strlen(from);
2959         norm_utf7_len = from_len * 5;
2960         Xalloca(norm_utf7, norm_utf7_len + 1, return g_strdup(from));
2961         norm_utf7_p = norm_utf7;
2962
2963 #define IS_PRINT(ch) (isprint(ch) && isascii(ch))
2964
2965         while (from_len > 0) {
2966                 if (IS_PRINT(*from_tmp)) {
2967                         /* printable ascii char */
2968                         *norm_utf7_p = *from_tmp;
2969                         norm_utf7_p++;
2970                         from_tmp++;
2971                         from_len--;
2972                 } else {
2973                         size_t mblen;
2974
2975                         /* unprintable char: convert to UTF-7 */
2976                         for (mblen = 0;
2977                              !IS_PRINT(from_tmp[mblen]) && mblen < from_len;
2978                              mblen++)
2979                                 ;
2980                         from_len -= mblen;
2981                         if (iconv(cd, &from_tmp, &mblen,
2982                                   &norm_utf7_p, &norm_utf7_len) == -1) {
2983                                 g_warning(_("iconv cannot convert %s to UTF-7\n"),
2984                                           conv_get_current_charset_str());
2985                                 return g_strdup(from);
2986                         }
2987
2988                         /* second iconv() call for flushing */
2989                         iconv(cd, NULL, NULL, &norm_utf7_p, &norm_utf7_len);
2990                 }
2991         }
2992
2993 #undef IS_PRINT
2994
2995         *norm_utf7_p = '\0';
2996         to_str = g_string_new(NULL);
2997         for (p = norm_utf7; p < norm_utf7_p; p++) {
2998                 /* replace: '&' -> "&-",
2999                             '+' -> '&',
3000                             escaped '/' -> ',' */
3001                 if (!in_escape && *p == '&') {
3002                         g_string_append(to_str, "&-");
3003                 } else if (!in_escape && *p == '+') {
3004                         g_string_append_c(to_str, '&');
3005                         in_escape = TRUE;
3006                 } else if (in_escape && *p == '/') {
3007                         g_string_append_c(to_str, ',');
3008                 } else if (in_escape && *p == '-') {
3009                         in_escape = FALSE;
3010                         g_string_append_c(to_str, '-');
3011                 } else {
3012                         g_string_append_c(to_str, *p);
3013                 }
3014         }
3015
3016         if (in_escape) {
3017                 in_escape = FALSE;
3018                 g_string_append_c(to_str, '-');
3019         }
3020
3021         to = to_str->str;
3022         g_string_free(to_str, FALSE);
3023
3024         return to;
3025 #endif
3026 }
3027
3028 static gboolean imap_rename_folder_func(GNode *node, gpointer data)
3029 {
3030         FolderItem *item = node->data;
3031         gchar **paths = data;
3032         const gchar *oldpath = paths[0];
3033         const gchar *newpath = paths[1];
3034         gchar *base;
3035         gchar *new_itempath;
3036         gint oldpathlen;
3037
3038         oldpathlen = strlen(oldpath);
3039         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
3040                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
3041                 return TRUE;
3042         }
3043
3044         base = item->path + oldpathlen;
3045         while (*base == G_DIR_SEPARATOR) base++;
3046         if (*base == '\0')
3047                 new_itempath = g_strdup(newpath);
3048         else
3049                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
3050                                            NULL);
3051         g_free(item->path);
3052         item->path = new_itempath;
3053
3054         return FALSE;
3055 }