src/imap.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 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 <glib.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include <dirent.h>
  29 #include <unistd.h>
  30 #include <ctype.h>
  31
  32 #include "intl.h"
  33 #include "imap.h"
  34 #include "socket.h"
  35 #include "recv.h"
  36 #include "procmsg.h"
  37 #include "procheader.h"
  38 #include "folder.h"
  39 #include "statusbar.h"
  40 #include "prefs_account.h"
  41 #include "codeconv.h"
  42 #include "utils.h"
  43 #include "inputdialog.h"
  44 #include "ssl.h"
  45
  46 #define IMAP4_PORT      143
  47 #if USE_SSL
  48 #define IMAPS_PORT      993
  49 #endif
  50
  51 static GList *session_list = NULL;
  52
  53 static gint imap_cmd_count = 0;
  54
  55 static IMAPSession *imap_session_get    (Folder         *folder);
  56 static gchar *imap_query_password       (const gchar    *server,
  57                                          const gchar    *user);
  58
  59 static void imap_scan_tree_recursive    (IMAPSession    *session,
  60                                          FolderItem     *item,
  61                                          IMAPNameSpace  *namespace);
  62 static GSList *imap_parse_list          (IMAPSession    *session,
  63                                          const gchar    *path);
  64 static gint imap_create_trash           (Folder         *folder);
  65
  66 static gint imap_do_copy                (Folder         *folder,
  67                                          FolderItem     *dest,
  68                                          MsgInfo        *msginfo,
  69                                          gboolean        remove_source);
  70 static gint imap_do_copy_msgs_with_dest (Folder         *folder,
  71                                          FolderItem     *dest,
  72                                          GSList         *msglist,
  73                                          gboolean        remove_source);
  74
  75 static GSList *imap_get_uncached_messages       (IMAPSession    *session,
  76                                                  FolderItem     *item,
  77                                                  guint32         first_uid,
  78                                                  guint32         last_uid);
  79 static GSList *imap_delete_cached_messages      (GSList         *mlist,
  80                                                  FolderItem     *item,
  81                                                  guint32         first_uid,
  82                                                  guint32         last_uid);
  83 static void imap_delete_all_cached_messages     (FolderItem     *item);
  84
  85 #if !USE_SSL
  86 static SockInfo *imap_open              (const gchar    *server,
  87                                          gushort         port,
  88                                          gchar          *buf);
  89 #else
  90 static SockInfo *imap_open              (const gchar    *server,
  91                                          gushort         port,
  92                                          gchar          *buf,
  93                                          gboolean        use_ssl);
  94 #endif
  95
  96 static gint imap_set_message_flags      (IMAPSession    *session,
  97                                          guint32         first_uid,
  98                                          guint32         last_uid,
  99                                          IMAPFlags       flag,
 100                                          gboolean        is_set);
 101 static gint imap_select                 (IMAPSession    *session,
 102                                          IMAPFolder     *folder,
 103                                          const gchar    *path,
 104                                          gint           *exists,
 105                                          gint           *recent,
 106                                          gint           *unseen,
 107                                          guint32        *uid_validity);
 108 static gint imap_get_uid                (IMAPSession    *session,
 109                                          gint            msgnum,
 110                                          guint32        *uid);
 111 static gint imap_status                 (IMAPSession    *session,
 112                                          IMAPFolder     *folder,
 113                                          const gchar    *path,
 114                                          gint           *messages,
 115                                          gint           *recent,
 116                                          gint           *unseen,
 117                                          guint32        *uid_validity);
 118
 119 static void imap_parse_namespace                (IMAPSession    *session,
 120                                                  IMAPFolder     *folder);
 121 static IMAPNameSpace *imap_find_namespace       (IMAPFolder     *folder,
 122                                                  const gchar    *path);
 123 static gchar *imap_get_real_path                (IMAPFolder     *folder,
 124                                                  const gchar    *path);
 125
 126 static gchar *imap_parse_atom           (SockInfo       *sock,
 127                                          gchar          *src,
 128                                          gchar          *dest,
 129                                          gint            dest_len,
 130                                          GString        *str);
 131 static gchar *imap_parse_one_address    (SockInfo       *sock,
 132                                          gchar          *start,
 133                                          gchar          *out_from_str,
 134                                          gchar          *out_fromname_str,
 135                                          GString        *str);
 136 static gchar *imap_parse_address        (SockInfo       *sock,
 137                                          gchar          *start,
 138                                          gchar         **out_from_str,
 139                                          gchar         **out_fromname_str,
 140                                          GString        *str);
 141 static MsgFlags imap_parse_flags        (const gchar    *flag_str);
 142 static MsgInfo *imap_parse_envelope     (SockInfo       *sock,
 143                                          GString        *line_str);
 144
 145 /* low-level IMAP4rev1 commands */
 146 static gint imap_cmd_login      (SockInfo       *sock,
 147                                  const gchar    *user,
 148                                  const gchar    *pass);
 149 static gint imap_cmd_logout     (SockInfo       *sock);
 150 static gint imap_cmd_noop       (SockInfo       *sock);
 151 static gint imap_cmd_namespace  (SockInfo       *sock,
 152                                  gchar         **ns_str);
 153 static gint imap_cmd_list       (SockInfo       *sock,
 154                                  const gchar    *ref,
 155                                  const gchar    *mailbox,
 156                                  GPtrArray      *argbuf);
 157 static gint imap_cmd_do_select  (SockInfo       *sock,
 158                                  const gchar    *folder,
 159                                  gboolean        examine,
 160                                  gint           *exists,
 161                                  gint           *recent,
 162                                  gint           *unseen,
 163                                  guint32        *uid_validity);
 164 static gint imap_cmd_select     (SockInfo       *sock,
 165                                  const gchar    *folder,
 166                                  gint           *exists,
 167                                  gint           *recent,
 168                                  gint           *unseen,
 169                                  guint32        *uid_validity);
 170 static gint imap_cmd_examine    (SockInfo       *sock,
 171                                  const gchar    *folder,
 172                                  gint           *exists,
 173                                  gint           *recent,
 174                                  gint           *unseen,
 175                                  guint32        *uid_validity);
 176 static gint imap_cmd_create     (SockInfo       *sock,
 177                                  const gchar    *folder);
 178 static gint imap_cmd_delete     (SockInfo       *sock,
 179                                  const gchar    *folder);
 180 static gint imap_cmd_envelope   (SockInfo       *sock,
 181                                  guint32         first_uid,
 182                                  guint32         last_uid);
 183 #if 0
 184 static gint imap_cmd_search     (SockInfo       *sock,
 185                                  GSList         *numlist);
 186 #endif
 187 static gint imap_cmd_fetch      (SockInfo       *sock,
 188                                  guint32         uid,
 189                                  const gchar    *filename);
 190 static gint imap_cmd_append     (SockInfo       *sock,
 191                                  const gchar    *destfolder,
 192                                  const gchar    *file);
 193 static gint imap_cmd_copy       (SockInfo       *sock,
 194                                  guint32         uid,
 195                                  const gchar    *destfolder);
 196 static gint imap_cmd_store      (SockInfo       *sock,
 197                                  guint32         first_uid,
 198                                  guint32         last_uid,
 199                                  gchar          *sub_cmd);
 200 static gint imap_cmd_expunge    (SockInfo       *sock);
 201
 202 static gint imap_cmd_ok         (SockInfo       *sock,
 203                                  GPtrArray      *argbuf);
 204 static void imap_cmd_gen_send   (SockInfo       *sock,
 205                                  const gchar    *format, ...);
 206 static gint imap_cmd_gen_recv   (SockInfo       *sock,
 207                                  gchar          *buf,
 208                                  gint            size);
 209
 210 /* misc utility functions */
 211 static gchar *strchr_cpy                        (const gchar    *src,
 212                                                  gchar           ch,
 213                                                  gchar          *dest,
 214                                                  gint            len);
 215 static gchar *search_array_contain_str          (GPtrArray      *array,
 216                                                  gchar          *str);
 217 static void imap_path_separator_subst           (gchar          *str,
 218                                                  gchar           separator);
 219
 220 static IMAPSession *imap_session_get(Folder *folder)
 221 {
 222         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 223         gushort port;
 224
 225         g_return_val_if_fail(folder != NULL, NULL);
 226         g_return_val_if_fail(folder->type == F_IMAP, NULL);
 227         g_return_val_if_fail(folder->account != NULL, NULL);
 228
 229 #if !USE_SSL
 230         port = folder->account->set_imapport ? folder->account->imapport
 231                 : IMAP4_PORT;
 232 #else
 233         port = folder->account->set_imapport ? folder->account->imapport
 234                 : (folder->account->imap_ssl ? IMAPS_PORT : IMAP4_PORT);
 235 #endif
 236
 237         if (!rfolder->session) {
 238                 rfolder->session =
 239 #if !USE_SSL
 240                         imap_session_new(folder->account->recv_server, port,
 241                                          folder->account->userid,
 242                                          folder->account->passwd);
 243 #else
 244                         imap_session_new(folder->account->recv_server, port,
 245                                          folder->account->userid,
 246                                          folder->account->passwd,
 247                                          folder->account->imap_ssl);
 248 #endif
 249                 if (rfolder->session)
 250                         imap_parse_namespace(IMAP_SESSION(rfolder->session),
 251                                              IMAP_FOLDER(folder));
 252                 statusbar_pop_all();
 253                 return IMAP_SESSION(rfolder->session);
 254         }
 255
 256         if (imap_cmd_noop(rfolder->session->sock) != IMAP_SUCCESS) {
 257                 log_warning(_("IMAP4 connection to %s:%d has been"
 258                               " disconnected. Reconnecting...\n"),
 259                             folder->account->recv_server, port);
 260                 session_destroy(rfolder->session);
 261                 rfolder->session =
 262 #if !USE_SSL
 263                         imap_session_new(folder->account->recv_server, port,
 264                                          folder->account->userid,
 265                                          folder->account->passwd);
 266 #else
 267                         imap_session_new(folder->account->recv_server, port,
 268                                          folder->account->userid,
 269                                          folder->account->passwd,
 270                                          folder->account->imap_ssl);
 271 #endif
 272                 if (rfolder->session)
 273                         imap_parse_namespace(IMAP_SESSION(rfolder->session),
 274                                              IMAP_FOLDER(folder));
 275         }
 276
 277         statusbar_pop_all();
 278         return IMAP_SESSION(rfolder->session);
 279 }
 280
 281 static gchar *imap_query_password(const gchar *server, const gchar *user)
 282 {
 283         gchar *message;
 284         gchar *pass;
 285
 286         message = g_strdup_printf(_("Input password for %s on %s:"),
 287                                   user, server);
 288         pass = input_dialog_with_invisible(_("Input password"), message, NULL);
 289         g_free(message);
 290
 291         return pass;
 292 }
 293
 294 #if !USE_SSL
 295 Session *imap_session_new(const gchar *server, gushort port,
 296                           const gchar *user, const gchar *pass)
 297 #else
 298 Session *imap_session_new(const gchar *server, gushort port,
 299                           const gchar *user, const gchar *pass,
 300                           gboolean use_ssl)
 301 #endif
 302 {
 303         gchar buf[IMAPBUFSIZE];
 304         IMAPSession *session;
 305         SockInfo *imap_sock;
 306
 307         g_return_val_if_fail(server != NULL, NULL);
 308         g_return_val_if_fail(user != NULL, NULL);
 309
 310         if (!pass) {
 311                 gchar *tmp_pass;
 312                 tmp_pass = imap_query_password(server, user);
 313                 if (!tmp_pass)
 314                         return NULL;
 315                 Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return NULL;});
 316                 g_free(tmp_pass);
 317         }
 318
 319         log_message(_("creating IMAP4 connection to %s:%d ...\n"),
 320                     server, port);
 321
 322 #if !USE_SSL
 323         if ((imap_sock = imap_open(server, port, buf)) == NULL)
 324 #else
 325         if ((imap_sock = imap_open(server, port, buf, use_ssl)) == NULL)
 326 #endif
 327                 return NULL;
 328         if (imap_cmd_login(imap_sock, user, pass) != IMAP_SUCCESS) {
 329                 imap_cmd_logout(imap_sock);
 330                 sock_close(imap_sock);
 331                 return NULL;
 332         }
 333
 334         session = g_new(IMAPSession, 1);
 335         SESSION(session)->type      = SESSION_IMAP;
 336         SESSION(session)->server    = g_strdup(server);
 337         SESSION(session)->sock      = imap_sock;
 338         SESSION(session)->connected = TRUE;
 339         SESSION(session)->phase     = SESSION_READY;
 340         SESSION(session)->data      = NULL;
 341         session->mbox = NULL;
 342
 343         session_list = g_list_append(session_list, session);
 344
 345         return SESSION(session);
 346 }
 347
 348 void imap_session_destroy(IMAPSession *session)
 349 {
 350 #if USE_SSL
 351         ssl_done_socket(SESSION(session)->sock);
 352 #endif
 353         sock_close(SESSION(session)->sock);
 354         SESSION(session)->sock = NULL;
 355
 356         g_free(session->mbox);
 357
 358         session_list = g_list_remove(session_list, session);
 359 }
 360
 361 void imap_session_destroy_all(void)
 362 {
 363         while (session_list != NULL) {
 364                 IMAPSession *session = (IMAPSession *)session_list->data;
 365
 366                 imap_cmd_logout(SESSION(session)->sock);
 367                 imap_session_destroy(session);
 368         }
 369 }
 370
 371 #define THROW goto catch
 372
 373 GSList *imap_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 374 {
 375         GSList *mlist = NULL;
 376         IMAPSession *session;
 377         gint ok, exists = 0, recent = 0, unseen = 0;
 378         guint32 uid_validity = 0;
 379         guint32 first_uid = 0, last_uid = 0, begin;
 380
 381         g_return_val_if_fail(folder != NULL, NULL);
 382         g_return_val_if_fail(item != NULL, NULL);
 383         g_return_val_if_fail(folder->type == F_IMAP, NULL);
 384         g_return_val_if_fail(folder->account != NULL, NULL);
 385
 386         session = imap_session_get(folder);
 387
 388         if (!session) {
 389                 mlist = procmsg_read_cache(item, FALSE);
 390                 item->last_num = procmsg_get_last_num_in_cache(mlist);
 391                 procmsg_set_flags(mlist, item);
 392                 statusbar_pop_all();
 393                 return mlist;
 394         }
 395
 396         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 397                          &exists, &recent, &unseen, &uid_validity);
 398         if (ok != IMAP_SUCCESS) THROW;
 399         if (exists > 0) {
 400                 ok = imap_get_uid(session, 1, &first_uid);
 401                 if (ok != IMAP_SUCCESS) THROW;
 402                 if (1 != exists) {
 403                         ok = imap_get_uid(session, exists, &last_uid);
 404                         if (ok != IMAP_SUCCESS) THROW;
 405                 } else
 406                         last_uid = first_uid;
 407         } else {
 408                 imap_delete_all_cached_messages(item);
 409                 statusbar_pop_all();
 410                 return NULL;
 411         }
 412
 413         if (use_cache) {
 414                 guint32 cache_last;
 415
 416                 mlist = procmsg_read_cache(item, FALSE);
 417                 procmsg_set_flags(mlist, item);
 418                 cache_last = procmsg_get_last_num_in_cache(mlist);
 419
 420                 /* calculating the range of envelope to get */
 421                 if (item->mtime != uid_validity) {
 422                         /* mailbox is changed (get all) */
 423                         begin = first_uid;
 424                 } else if (last_uid < cache_last) {
 425                         /* mailbox is changed (get all) */
 426                         begin = first_uid;
 427                 } else if (last_uid == cache_last) {
 428                         /* mailbox unchanged (get none)*/
 429                         begin = 0;
 430                 } else {
 431                         begin = cache_last + 1;
 432                 }
 433
 434                 item->mtime = uid_validity;
 435
 436                 if (first_uid > 0 && last_uid > 0) {
 437                         mlist = imap_delete_cached_messages(mlist, item,
 438                                                             0, first_uid - 1);
 439                         mlist = imap_delete_cached_messages(mlist, item,
 440                                                             last_uid + 1,
 441                                                             UINT_MAX);
 442                 }
 443                 if (begin > 0)
 444                         mlist = imap_delete_cached_messages(mlist, item,
 445                                                             begin, UINT_MAX);
 446         } else {
 447                 imap_delete_all_cached_messages(item);
 448                 begin = first_uid;
 449         }
 450
 451         if (begin > 0 && begin <= last_uid) {
 452                 GSList *newlist;
 453                 newlist = imap_get_uncached_messages(session, item,
 454                                                      begin, last_uid);
 455                 mlist = g_slist_concat(mlist, newlist);
 456         }
 457
 458         item->last_num = last_uid;
 459
 460 catch:
 461         statusbar_pop_all();
 462         return mlist;
 463 }
 464
 465 #undef THROW
 466
 467 gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid)
 468 {
 469         gchar *path, *filename;
 470         IMAPSession *session;
 471         gint ok;
 472
 473         g_return_val_if_fail(folder != NULL, NULL);
 474         g_return_val_if_fail(item != NULL, NULL);
 475
 476         path = folder_item_get_path(item);
 477         if (!is_dir_exist(path))
 478                 make_dir_hier(path);
 479         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(uid), NULL);
 480         g_free(path);
 481
 482         if (is_file_exist(filename)) {
 483                 debug_print(_("message %d has been already cached.\n"), uid);
 484                 return filename;
 485         }
 486
 487         session = imap_session_get(folder);
 488         if (!session) {
 489                 g_free(filename);
 490                 return NULL;
 491         }
 492
 493         debug_print(_("getting message %d...\n"), uid);
 494         ok = imap_cmd_fetch(SESSION(session)->sock, (guint32)uid, filename);
 495
 496         statusbar_pop_all();
 497
 498         if (ok != IMAP_SUCCESS) {
 499                 g_warning(_("can't fetch message %d\n"), uid);
 500                 g_free(filename);
 501                 return NULL;
 502         }
 503
 504         return filename;
 505 }
 506
 507 gint imap_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 508                   gboolean remove_source)
 509 {
 510         IMAPSession *session;
 511         gint ok;
 512
 513         g_return_val_if_fail(folder != NULL, -1);
 514         g_return_val_if_fail(dest != NULL, -1);
 515         g_return_val_if_fail(file != NULL, -1);
 516
 517         session = imap_session_get(folder);
 518         if (!session)
 519                 return -1;
 520
 521         ok = imap_cmd_append(SESSION(session)->sock, dest->path, file);
 522         if (ok != IMAP_SUCCESS) {
 523                 g_warning(_("can't append message %s\n"), file);
 524                 return -1;
 525         }
 526
 527         if (remove_source) {
 528                 if (unlink(file) < 0)
 529                         FILE_OP_ERROR(file, "unlink");
 530         }
 531
 532         return dest->last_num;
 533 }
 534
 535 static gint imap_do_copy(Folder *folder, FolderItem *dest, MsgInfo *msginfo,
 536                          gboolean remove_source)
 537 {
 538         gchar *destdir;
 539         IMAPSession *session;
 540         gint ok;
 541
 542         g_return_val_if_fail(folder != NULL, -1);
 543         g_return_val_if_fail(folder->type == F_IMAP, -1);
 544         g_return_val_if_fail(dest != NULL, -1);
 545         g_return_val_if_fail(msginfo != NULL, -1);
 546
 547         session = imap_session_get(folder);
 548         if (!session) return -1;
 549
 550         if (msginfo->folder == dest) {
 551                 g_warning(_("the src folder is identical to the dest.\n"));
 552                 return -1;
 553         }
 554
 555         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 556
 557         if (remove_source)
 558                 debug_print(_("Moving message %s%c%d to %s ...\n"),
 559                             msginfo->folder->path, G_DIR_SEPARATOR,
 560                             msginfo->msgnum, destdir);
 561         else
 562                 debug_print(_("Copying message %s%c%d to %s ...\n"),
 563                             msginfo->folder->path, G_DIR_SEPARATOR,
 564                             msginfo->msgnum, destdir);
 565
 566         ok = imap_cmd_copy(SESSION(session)->sock, msginfo->msgnum, destdir);
 567
 568         if (ok == IMAP_SUCCESS && remove_source) {
 569                 imap_set_message_flags(session, msginfo->msgnum, msginfo->msgnum,
 570                                        IMAP_FLAG_DELETED, TRUE);
 571                 ok = imap_cmd_expunge(SESSION(session)->sock);
 572         }
 573
 574         g_free(destdir);
 575         statusbar_pop_all();
 576
 577         return ok;
 578 }
 579
 580 static gint imap_do_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
 581                                         GSList *msglist,
 582                                         gboolean remove_source)
 583 {
 584         gchar *destdir;
 585         GSList *cur;
 586         MsgInfo *msginfo;
 587         IMAPSession *session;
 588         gint ok;
 589
 590         g_return_val_if_fail(folder != NULL, -1);
 591         g_return_val_if_fail(dest != NULL, -1);
 592         g_return_val_if_fail(msglist != NULL, -1);
 593
 594         session = imap_session_get(folder);
 595         if (!session) return -1;
 596
 597         destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 598
 599         for (cur = msglist; cur != NULL; cur = cur->next) {
 600                 msginfo = (MsgInfo *)cur->data;
 601
 602                 if (msginfo->folder == dest) {
 603                         g_warning(_("the src folder is identical to the dest.\n"));
 604                         continue;
 605                 }
 606
 607                 if (remove_source)
 608                         debug_print(_("Moving message %s%c%d to %s ...\n"),
 609                                     msginfo->folder->path, G_DIR_SEPARATOR,
 610                                     msginfo->msgnum, destdir);
 611                 else
 612                         debug_print(_("Copying message %s%c%d to %s ...\n"),
 613                                     msginfo->folder->path, G_DIR_SEPARATOR,
 614                                     msginfo->msgnum, destdir);
 615
 616                 ok = imap_cmd_copy(SESSION(session)->sock, msginfo->msgnum,
 617                                    destdir);
 618
 619                 if (ok == IMAP_SUCCESS && remove_source) {
 620                         imap_set_message_flags
 621                                 (session, msginfo->msgnum, msginfo->msgnum,
 622                                  IMAP_FLAG_DELETED, TRUE);
 623                 }
 624         }
 625
 626         if (remove_source)
 627                 ok = imap_cmd_expunge(SESSION(session)->sock);
 628
 629         g_free(destdir);
 630         statusbar_pop_all();
 631
 632         return IMAP_SUCCESS;
 633 }
 634
 635 gint imap_move_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 636 {
 637         return imap_do_copy(folder, dest, msginfo, TRUE);
 638 }
 639
 640 gint imap_move_msgs_with_dest(Folder *folder, FolderItem *dest,
 641                               GSList *msglist)
 642 {
 643         return imap_do_copy_msgs_with_dest(folder, dest, msglist, TRUE);
 644 }
 645
 646 gint imap_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 647 {
 648         return imap_do_copy(folder, dest, msginfo, FALSE);
 649 }
 650
 651 gint imap_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
 652                               GSList *msglist)
 653 {
 654         return imap_do_copy_msgs_with_dest(folder, dest, msglist, FALSE);
 655 }
 656
 657 gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
 658 {
 659         gint exists, recent, unseen;
 660         guint32 uid_validity;
 661         gint ok;
 662         IMAPSession *session;
 663
 664         g_return_val_if_fail(folder != NULL, -1);
 665         g_return_val_if_fail(folder->type == F_IMAP, -1);
 666         g_return_val_if_fail(item != NULL, -1);
 667
 668         session = imap_session_get(folder);
 669         if (!session) return -1;
 670
 671         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 672                          &exists, &recent, &unseen, &uid_validity);
 673         statusbar_pop_all();
 674         if (ok != IMAP_SUCCESS)
 675                 return ok;
 676
 677         ok = imap_set_message_flags
 678                 (IMAP_SESSION(REMOTE_FOLDER(folder)->session),
 679                  (guint32)uid, (guint32)uid, IMAP_FLAG_DELETED, TRUE);
 680         statusbar_pop_all();
 681         if (ok != IMAP_SUCCESS) {
 682                 log_warning(_("can't set deleted flags: %d\n"), uid);
 683                 return ok;
 684         }
 685
 686         ok = imap_cmd_expunge(SESSION(session)->sock);
 687         statusbar_pop_all();
 688         if (ok != IMAP_SUCCESS) {
 689                 log_warning(_("can't expunge\n"));
 690                 return ok;
 691         }
 692
 693         return IMAP_SUCCESS;
 694 }
 695
 696 gint imap_remove_all_msg(Folder *folder, FolderItem *item)
 697 {
 698         gint exists, recent, unseen;
 699         guint32 uid_validity;
 700         gint ok;
 701         IMAPSession *session;
 702
 703         g_return_val_if_fail(folder != NULL, -1);
 704         g_return_val_if_fail(item != NULL, -1);
 705
 706         session = imap_session_get(folder);
 707         if (!session) return -1;
 708
 709         ok = imap_select(session, IMAP_FOLDER(folder), item->path,
 710                          &exists, &recent, &unseen, &uid_validity);
 711         statusbar_pop_all();
 712         if (ok != IMAP_SUCCESS)
 713                 return ok;
 714         if (exists == 0)
 715                 return IMAP_SUCCESS;
 716
 717         imap_cmd_gen_send(SESSION(session)->sock,
 718                           "STORE 1:%d +FLAGS (\\Deleted)", exists);
 719         ok = imap_cmd_ok(SESSION(session)->sock, NULL);
 720         statusbar_pop_all();
 721         if (ok != IMAP_SUCCESS) {
 722                 log_warning(_("can't set deleted flags: 1:%d\n"), exists);
 723                 return ok;
 724         }
 725
 726         ok = imap_cmd_expunge(SESSION(session)->sock);
 727         statusbar_pop_all();
 728         if (ok != IMAP_SUCCESS) {
 729                 log_warning(_("can't expunge\n"));
 730                 return ok;
 731         }
 732
 733         return IMAP_SUCCESS;
 734 }
 735
 736 void imap_scan_folder(Folder *folder, FolderItem *item)
 737 {
 738         IMAPSession *session;
 739         gint messages, recent, unseen;
 740         guint32 uid_validity;
 741         gint ok;
 742
 743         g_return_if_fail(folder != NULL);
 744         g_return_if_fail(item != NULL);
 745
 746         session = imap_session_get(folder);
 747         if (!session) return;
 748
 749         ok = imap_status(session, IMAP_FOLDER(folder), item->path,
 750                          &messages, &recent, &unseen, &uid_validity);
 751         statusbar_pop_all();
 752         if (ok != IMAP_SUCCESS) return;
 753
 754         item->new = recent;
 755         item->unread = unseen;
 756         item->total = messages;
 757         /* item->mtime = uid_validity; */
 758 }
 759
 760 void imap_scan_tree(Folder *folder)
 761 {
 762         IMAPFolder *imapfolder = IMAP_FOLDER(folder);
 763         FolderItem *item, *inbox;
 764         IMAPSession *session;
 765         IMAPNameSpace *namespace = NULL;
 766         gchar *root_folder = NULL;
 767
 768         g_return_if_fail(folder != NULL);
 769         g_return_if_fail(folder->account != NULL);
 770
 771         session = imap_session_get(folder);
 772         if (!session) return;
 773
 774         if (imapfolder->namespace && imapfolder->namespace->data)
 775                 namespace = (IMAPNameSpace *)imapfolder->namespace->data;
 776
 777         if (folder->account->imap_dir && *folder->account->imap_dir) {
 778                 gchar *imap_dir;
 779                 Xstrdup_a(imap_dir, folder->account->imap_dir, return);
 780                 strtailchomp(imap_dir, '/');
 781                 root_folder = g_strconcat
 782                         (namespace && namespace->name ? namespace->name : "",
 783                          imap_dir, NULL);
 784                 if (namespace && namespace->separator)
 785                         subst_char(root_folder, namespace->separator, '/');
 786         }
 787
 788         if (root_folder)
 789                 debug_print("IMAP root directory: %s\n", root_folder);
 790
 791         folder_tree_destroy(folder);
 792         item = folder_item_new(folder->name, root_folder);
 793         item->folder = folder;
 794         folder->node = g_node_new(item);
 795         g_free(root_folder);
 796
 797         imap_scan_tree_recursive(session, item, namespace);
 798
 799         if (!folder->inbox) {
 800                 inbox = folder_item_new("INBOX", "INBOX");
 801                 inbox->stype = F_INBOX;
 802                 folder_item_append(item, inbox);
 803                 folder->inbox = inbox;
 804         }
 805         if (!folder->trash)
 806                 imap_create_trash(folder);
 807 }
 808
 809 static void imap_scan_tree_recursive(IMAPSession *session,
 810                                      FolderItem *item,
 811                                      IMAPNameSpace *namespace)
 812 {
 813         IMAPFolder *imapfolder;
 814         FolderItem *new_item;
 815         GSList *item_list, *cur;
 816         gchar *real_path;
 817
 818         g_return_if_fail(item != NULL);
 819         g_return_if_fail(item->folder != NULL);
 820         g_return_if_fail(item->no_sub == FALSE);
 821
 822         imapfolder = IMAP_FOLDER(item->folder);
 823
 824         if (item->folder->ui_func)
 825                 item->folder->ui_func(item->folder, item,
 826                                       item->folder->ui_func_data);
 827
 828         if (item->path) {
 829                 real_path = imap_get_real_path(imapfolder, item->path);
 830                 imap_cmd_gen_send(SESSION(session)->sock, "LIST \"\" %s%c%%",
 831                                   real_path,
 832                                   namespace && namespace->separator
 833                                   ? namespace->separator : '/');
 834         } else {
 835                 real_path = g_strdup(namespace && namespace->name
 836                                      ? namespace->name : "");
 837                 imap_cmd_gen_send(SESSION(session)->sock, "LIST \"\" %s%%",
 838                                   real_path);
 839         }
 840
 841         strtailchomp(real_path, namespace && namespace->separator
 842                      ? namespace->separator : '/');
 843
 844         item_list = imap_parse_list(session, real_path);
 845         for (cur = item_list; cur != NULL; cur = cur->next) {
 846                 new_item = cur->data;
 847                 if (!strcmp(new_item->path, "INBOX")) {
 848                         if (!item->folder->inbox) {
 849                                 new_item->stype = F_INBOX;
 850                                 item->folder->inbox = new_item;
 851                         } else {
 852                                 folder_item_destroy(new_item);
 853                                 continue;
 854                         }
 855                 } else if (!item->parent && !item->folder->trash) {
 856                         if (!strcasecmp(g_basename(new_item->path), "Trash")) {
 857                                 new_item->stype = F_TRASH;
 858                                 item->folder->trash = new_item;
 859                         }
 860                 }
 861                 folder_item_append(item, new_item);
 862                 if (new_item->no_select == FALSE)
 863                         imap_scan_folder(new_item->folder, new_item);
 864                 if (new_item->no_sub == FALSE)
 865                         imap_scan_tree_recursive(session, new_item, namespace);
 866         }
 867 }
 868
 869 static GSList *imap_parse_list(IMAPSession *session, const gchar *path)
 870 {
 871         gchar buf[IMAPBUFSIZE];
 872         gchar flags[256];
 873         gchar separator[16];
 874         gchar *p;
 875         gchar *name;
 876         GSList *item_list = NULL;
 877         GString *str;
 878         FolderItem *new_item;
 879
 880         debug_print("getting list of %s ...\n", *path ? path : "\"\"");
 881
 882         str = g_string_new(NULL);
 883
 884         for (;;) {
 885                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) <= 0) {
 886                         log_warning(_("error occured while getting LIST.\n"));
 887                         break;
 888                 }
 889                 strretchomp(buf);
 890                 if (buf[0] != '*' || buf[1] != ' ') {
 891                         log_print("IMAP4< %s\n", buf);
 892                         break;
 893                 }
 894                 debug_print("IMAP4< %s\n", buf);
 895
 896                 g_string_assign(str, buf);
 897                 p = str->str + 2;
 898                 if (strncmp(p, "LIST ", 5) != 0) continue;
 899                 p += 5;
 900
 901                 if (*p != '(') continue;
 902                 p++;
 903                 p = strchr_cpy(p, ')', flags, sizeof(flags));
 904                 if (!p) continue;
 905                 while (*p == ' ') p++;
 906
 907                 p = strchr_cpy(p, ' ', separator, sizeof(separator));
 908                 if (!p) continue;
 909                 extract_quote(separator, '"');
 910                 if (!strcmp(separator, "NIL"))
 911                         separator[0] = '\0';
 912
 913                 buf[0] = '\0';
 914                 while (*p == ' ') p++;
 915                 if (*p == '{' || *p == '"')
 916                         p = imap_parse_atom(SESSION(session)->sock, p,
 917                                             buf, sizeof(buf), str);
 918                 else
 919                         strncpy2(buf, p, sizeof(buf));
 920                 strtailchomp(buf, separator[0]);
 921                 if (buf[0] == '\0') continue;
 922                 if (!strcmp(buf, path)) continue;
 923
 924                 if (separator[0] != '\0')
 925                         subst_char(buf, separator[0], '/');
 926                 name = g_basename(buf);
 927                 if (name[0] == '.') continue;
 928
 929                 new_item = folder_item_new(name, buf);
 930                 if (strcasestr(flags, "\\Noinferiors") != NULL)
 931                         new_item->no_sub = TRUE;
 932                 if (strcasestr(flags, "\\Noselect") != NULL)
 933                         new_item->no_select = TRUE;
 934
 935                 item_list = g_slist_append(item_list, new_item);
 936
 937                 debug_print("folder %s has been added.\n", buf);
 938         }
 939
 940         g_string_free(str, TRUE);
 941         statusbar_pop_all();
 942
 943         return item_list;
 944 }
 945
 946 gint imap_create_tree(Folder *folder)
 947 {
 948         FolderItem *item;
 949
 950         g_return_val_if_fail(folder != NULL, -1);
 951         g_return_val_if_fail(folder->node != NULL, -1);
 952         g_return_val_if_fail(folder->node->data != NULL, -1);
 953         g_return_val_if_fail(folder->account != NULL, -1);
 954
 955         imap_scan_tree(folder);
 956
 957         item = FOLDER_ITEM(folder->node->data);
 958
 959         if (!folder->inbox) {
 960                 FolderItem *inbox;
 961
 962                 inbox = folder_item_new("INBOX", "INBOX");
 963                 inbox->stype = F_INBOX;
 964                 folder_item_append(item, inbox);
 965                 folder->inbox = inbox;
 966         }
 967         if (!folder->trash)
 968                 imap_create_trash(folder);
 969
 970         return 0;
 971 }
 972
 973 static gint imap_create_trash(Folder *folder)
 974 {
 975         IMAPFolder *imapfolder = IMAP_FOLDER(folder);
 976         FolderItem *item;
 977         FolderItem *new_item;
 978         gchar *trash_path;
 979         gchar *imap_dir = "";
 980
 981         g_return_val_if_fail(folder != NULL, -1);
 982         g_return_val_if_fail(folder->node != NULL, -1);
 983         g_return_val_if_fail(folder->node->data != NULL, -1);
 984         g_return_val_if_fail(folder->account != NULL, -1);
 985
 986         if (folder->account->imap_dir && *folder->account->imap_dir) {
 987                 gchar *tmpdir;
 988
 989                 Xstrdup_a(tmpdir, folder->account->imap_dir, return -1);
 990                 strtailchomp(tmpdir, '/');
 991                 Xalloca(imap_dir, strlen(tmpdir) + 2, return -1);
 992                 g_snprintf(imap_dir, strlen(tmpdir) + 2, "%s%c", tmpdir, '/');
 993         }
 994
 995         if (imapfolder->namespace && imapfolder->namespace->data) {
 996                 IMAPNameSpace *namespace =
 997                         (IMAPNameSpace *)imapfolder->namespace->data;
 998
 999                 if (*namespace->name != '\0') {
1000                         gchar *name;
1001
1002                         Xstrdup_a(name, namespace->name, return -1);
1003                         subst_char(name, namespace->separator, '/');
1004                         trash_path = g_strconcat(name, imap_dir, "Trash", NULL);
1005                 } else
1006                         trash_path = g_strconcat(imap_dir, "Trash", NULL);
1007         } else
1008                 trash_path = g_strconcat(imap_dir, "Trash", NULL);
1009
1010         item = FOLDER_ITEM(folder->node->data);
1011         new_item = imap_create_folder(folder, item, trash_path);
1012
1013         if (!new_item) {
1014                 gchar *path;
1015
1016                 new_item = folder_item_new("Trash", trash_path);
1017                 folder_item_append(item, new_item);
1018
1019                 path = folder_item_get_path(new_item);
1020                 if (!is_dir_exist(path))
1021                         make_dir_hier(path);
1022                 g_free(path);
1023         } else {
1024                 g_free(new_item->name);
1025                 new_item->name = g_strdup("Trash");
1026         }
1027         new_item->stype = F_TRASH;
1028         folder->trash = new_item;
1029
1030         g_free(trash_path);
1031
1032         return 0;
1033 }
1034
1035 FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
1036                                const gchar *name)
1037 {
1038         gchar *dirpath, *imappath;
1039         IMAPSession *session;
1040         IMAPNameSpace *namespace;
1041         FolderItem *new_item;
1042         gchar *new_name;
1043         const gchar *p;
1044         gint ok;
1045
1046         g_return_val_if_fail(folder != NULL, NULL);
1047         g_return_val_if_fail(folder->account != NULL, NULL);
1048         g_return_val_if_fail(parent != NULL, NULL);
1049         g_return_val_if_fail(name != NULL, NULL);
1050
1051         session = imap_session_get(folder);
1052         if (!session) return NULL;
1053
1054         if (parent->path)
1055                 dirpath = g_strconcat(parent->path, "/", name, NULL);
1056         else if ((p = strchr(name, '/')) != NULL && *(p + 1) != '\0')
1057                 dirpath = g_strdup(name);
1058         else if (folder->account->imap_dir && *folder->account->imap_dir) {
1059                 gchar *imap_dir;
1060
1061                 Xstrdup_a(imap_dir, folder->account->imap_dir, return NULL);
1062                 strtailchomp(imap_dir, '/');
1063                 dirpath = g_strconcat(imap_dir, "/", name, NULL);
1064         } else
1065                 dirpath = g_strdup(name);
1066
1067         Xstrdup_a(imappath, dirpath, {g_free(dirpath); return NULL;});
1068         Xstrdup_a(new_name, name, {g_free(dirpath); return NULL;});
1069         namespace = imap_find_namespace(IMAP_FOLDER(folder), imappath);
1070         if (namespace && namespace->separator) {
1071                 imap_path_separator_subst(imappath, namespace->separator);
1072                 imap_path_separator_subst(new_name, namespace->separator);
1073                 strtailchomp(new_name, namespace->separator);
1074         }
1075         strtailchomp(dirpath, '/');
1076
1077         if (strcmp(name, "INBOX") != 0) {
1078                 GPtrArray *argbuf;
1079                 gint i;
1080                 gboolean exist = FALSE;
1081
1082                 argbuf = g_ptr_array_new();
1083                 ok = imap_cmd_list(SESSION(session)->sock, NULL, imappath,
1084                                    argbuf);
1085                 statusbar_pop_all();
1086                 if (ok != IMAP_SUCCESS) {
1087                         log_warning(_("can't create mailbox: LIST failed\n"));
1088                         g_free(dirpath);
1089                         g_ptr_array_free(argbuf, TRUE);
1090                         return NULL;
1091                 }
1092
1093                 for (i = 0; i < argbuf->len; i++) {
1094                         gchar *str;
1095                         str = g_ptr_array_index(argbuf, i);
1096                         if (!strncmp(str, "LIST ", 5)) {
1097                                 exist = TRUE;
1098                                 break;
1099                         }
1100                 }
1101                 g_ptr_array_free(argbuf, TRUE);
1102
1103                 if (!exist) {
1104                         ok = imap_cmd_create(SESSION(session)->sock, imappath);
1105                         statusbar_pop_all();
1106                         if (ok != IMAP_SUCCESS) {
1107                                 log_warning(_("can't create mailbox\n"));
1108                                 g_free(dirpath);
1109                                 return NULL;
1110                         }
1111                 }
1112         }
1113
1114         new_item = folder_item_new(new_name, dirpath);
1115         folder_item_append(parent, new_item);
1116         g_free(dirpath);
1117
1118         dirpath = folder_item_get_path(new_item);
1119         if (!is_dir_exist(dirpath))
1120                 make_dir_hier(dirpath);
1121         g_free(dirpath);
1122
1123         return new_item;
1124 }
1125
1126 gint imap_remove_folder(Folder *folder, FolderItem *item)
1127 {
1128         gint ok;
1129         IMAPSession *session;
1130         gchar *path;
1131         gint exists, recent, unseen;
1132         guint32 uid_validity;
1133
1134         g_return_val_if_fail(folder != NULL, -1);
1135         g_return_val_if_fail(item != NULL, -1);
1136         g_return_val_if_fail(item->path != NULL, -1);
1137
1138         session = imap_session_get(folder);
1139         if (!session) return -1;
1140
1141         path = imap_get_real_path(IMAP_FOLDER(folder), item->path);
1142
1143         ok = imap_cmd_examine(SESSION(session)->sock, "INBOX",
1144                               &exists, &recent, &unseen, &uid_validity);
1145         statusbar_pop_all();
1146         if (ok != IMAP_SUCCESS) {
1147                 g_free(path);
1148                 return -1;
1149         }
1150
1151         ok = imap_cmd_delete(SESSION(session)->sock, path);
1152         statusbar_pop_all();
1153         if (ok != IMAP_SUCCESS) {
1154                 log_warning(_("can't delete mailbox\n"));
1155                 g_free(path);
1156                 return -1;
1157         }
1158
1159         g_free(path);
1160         folder_item_remove(item);
1161
1162         return 0;
1163 }
1164
1165 static GSList *imap_get_uncached_messages(IMAPSession *session,
1166                                           FolderItem *item,
1167                                           guint32 first_uid, guint32 last_uid)
1168 {
1169         gchar *tmp;
1170         GSList *newlist = NULL;
1171         GSList *llast = NULL;
1172         GString *str;
1173         MsgInfo *msginfo;
1174
1175         g_return_val_if_fail(session != NULL, NULL);
1176         g_return_val_if_fail(item != NULL, NULL);
1177         g_return_val_if_fail(item->folder != NULL, NULL);
1178         g_return_val_if_fail(item->folder->type == F_IMAP, NULL);
1179         g_return_val_if_fail(first_uid <= last_uid, NULL);
1180
1181         if (imap_cmd_envelope(SESSION(session)->sock, first_uid, last_uid)
1182             != IMAP_SUCCESS) {
1183                 log_warning(_("can't get envelope\n"));
1184                 return NULL;
1185         }
1186
1187         str = g_string_new(NULL);
1188
1189         for (;;) {
1190                 if ((tmp = sock_getline(SESSION(session)->sock)) == NULL) {
1191                         log_warning(_("error occurred while getting envelope.\n"));
1192                         g_string_free(str, TRUE);
1193                         return newlist;
1194                 }
1195                 strretchomp(tmp);
1196                 log_print("IMAP4< %s\n", tmp);
1197                 if (tmp[0] != '*' || tmp[1] != ' ') {
1198                         g_free(tmp);
1199                         break;
1200                 }
1201                 g_string_assign(str, tmp);
1202                 g_free(tmp);
1203
1204                 msginfo = imap_parse_envelope(SESSION(session)->sock, str);
1205                 if (!msginfo) {
1206                         log_warning(_("can't parse envelope: %s\n"), str->str);
1207                         continue;
1208                 }
1209
1210                 msginfo->folder = item;
1211
1212                 if (!newlist)
1213                         llast = newlist = g_slist_append(newlist, msginfo);
1214                 else {
1215                         llast = g_slist_append(llast, msginfo);
1216                         llast = llast->next;
1217                 }
1218         }
1219
1220         g_string_free(str, TRUE);
1221
1222         return newlist;
1223 }
1224
1225 static GSList *imap_delete_cached_messages(GSList *mlist, FolderItem *item,
1226                                            guint32 first_uid, guint32 last_uid)
1227 {
1228         GSList *cur, *next;
1229         MsgInfo *msginfo;
1230         gchar *dir;
1231
1232         g_return_val_if_fail(item != NULL, mlist);
1233         g_return_val_if_fail(item->folder != NULL, mlist);
1234         g_return_val_if_fail(item->folder->type == F_IMAP, mlist);
1235
1236         debug_print(_("Deleting cached messages %d - %d ... "),
1237                     first_uid, last_uid);
1238
1239         dir = folder_item_get_path(item);
1240         remove_numbered_files(dir, first_uid, last_uid);
1241         g_free(dir);
1242
1243         for (cur = mlist; cur != NULL; ) {
1244                 next = cur->next;
1245
1246                 msginfo = (MsgInfo *)cur->data;
1247                 if (msginfo != NULL && first_uid <= msginfo->msgnum &&
1248                     msginfo->msgnum <= last_uid) {
1249                         procmsg_msginfo_free(msginfo);
1250                         mlist = g_slist_remove(mlist, msginfo);
1251                 }
1252
1253                 cur = next;
1254         }
1255
1256         debug_print(_("done.\n"));
1257
1258         return mlist;
1259 }
1260
1261 static void imap_delete_all_cached_messages(FolderItem *item)
1262 {
1263         gchar *dir;
1264
1265         g_return_if_fail(item != NULL);
1266         g_return_if_fail(item->folder != NULL);
1267         g_return_if_fail(item->folder->type == F_IMAP);
1268
1269         debug_print(_("Deleting all cached messages... "));
1270
1271         dir = folder_item_get_path(item);
1272         remove_all_numbered_files(dir);
1273         g_free(dir);
1274
1275         debug_print(_("done.\n"));
1276 }
1277
1278 #if !USE_SSL
1279 static SockInfo *imap_open(const gchar *server, gushort port, gchar *buf)
1280 #else
1281 static SockInfo *imap_open(const gchar *server, gushort port, gchar *buf, gboolean use_ssl)
1282 #endif
1283 {
1284         SockInfo *sock;
1285
1286         if ((sock = sock_connect(server, port)) == NULL) {
1287                 log_warning(_("Can't connect to IMAP4 server: %s:%d\n"),
1288                             server, port);
1289                 return NULL;
1290         }
1291
1292 #if USE_SSL
1293         if(use_ssl && !ssl_init_socket(sock)) {
1294                 sock_close(sock);
1295                 return NULL;
1296         }
1297 #endif
1298
1299         imap_cmd_count = 0;
1300
1301         if (imap_cmd_noop(sock) != IMAP_SUCCESS) {
1302                 sock_close(sock);
1303                 return NULL;
1304         }
1305
1306         return sock;
1307 }
1308
1309 #define THROW goto catch
1310
1311 static void imap_parse_namespace(IMAPSession *session, IMAPFolder *folder)
1312 {
1313         gchar *ns_str;
1314         gchar *name;
1315         gchar *separator;
1316         gchar *p;
1317         IMAPNameSpace *namespace;
1318         GList *ns_list = NULL;
1319
1320         g_return_if_fail(session != NULL);
1321         g_return_if_fail(folder != NULL);
1322
1323         if (folder->namespace != NULL) return;
1324
1325         if (imap_cmd_namespace(SESSION(session)->sock, &ns_str)
1326             != IMAP_SUCCESS) {
1327                 log_warning(_("can't get namespace\n"));
1328                 return;
1329         }
1330
1331         /* get the first element */
1332         extract_one_parenthesis_with_skip_quote(ns_str, '"', '(', ')');
1333         g_strstrip(ns_str);
1334         p = ns_str;
1335
1336         while (*p != '\0') {
1337                 /* parse ("#foo" "/") */
1338
1339                 while (*p && *p != '(') p++;
1340                 if (*p == '\0') THROW;
1341                 p++;
1342
1343                 while (*p && *p != '"') p++;
1344                 if (*p == '\0') THROW;
1345                 p++;
1346                 name = p;
1347
1348                 while (*p && *p != '"') p++;
1349                 if (*p == '\0') THROW;
1350                 *p = '\0';
1351                 p++;
1352
1353                 while (*p && isspace(*p)) p++;
1354                 if (*p == '\0') THROW;
1355                 if (strncmp(p, "NIL", 3) == 0)
1356                         separator = NULL;
1357                 else if (*p == '"') {
1358                         p++;
1359                         separator = p;
1360                         while (*p && *p != '"') p++;
1361                         if (*p == '\0') THROW;
1362                         *p = '\0';
1363                         p++;
1364                 } else THROW;
1365
1366                 while (*p && *p != ')') p++;
1367                 if (*p == '\0') THROW;
1368                 p++;
1369
1370                 namespace = g_new(IMAPNameSpace, 1);
1371                 namespace->name = g_strdup(name);
1372                 namespace->separator = separator ? separator[0] : '\0';
1373                 ns_list = g_list_append(ns_list, namespace);
1374                 IMAP_FOLDER(folder)->namespace = ns_list;
1375         }
1376
1377 catch:
1378         g_free(ns_str);
1379         return;
1380 }
1381
1382 #undef THROW
1383
1384 static IMAPNameSpace *imap_find_namespace(IMAPFolder *folder,
1385                                           const gchar *path)
1386 {
1387         IMAPNameSpace *namespace = NULL;
1388         GList *ns_list;
1389         gchar *name;
1390
1391         g_return_val_if_fail(folder != NULL, NULL);
1392         g_return_val_if_fail(path != NULL, NULL);
1393
1394         ns_list = folder->namespace;
1395
1396         for (; ns_list != NULL; ns_list = ns_list->next) {
1397                 IMAPNameSpace *tmp_ns = ns_list->data;
1398
1399                 Xstrdup_a(name, tmp_ns->name, return namespace);
1400                 if (tmp_ns->separator && tmp_ns->separator != '/')
1401                         subst_char(name, tmp_ns->separator, '/');
1402                 if (strncmp(path, name, strlen(name)) == 0)
1403                         namespace = tmp_ns;
1404         }
1405
1406         return namespace;
1407 }
1408
1409 static gchar *imap_get_real_path(IMAPFolder *folder, const gchar *path)
1410 {
1411         gchar *real_path;
1412         IMAPNameSpace *namespace;
1413
1414         g_return_val_if_fail(folder != NULL, NULL);
1415         g_return_val_if_fail(path != NULL, NULL);
1416
1417         real_path = g_strdup(path);
1418         namespace = imap_find_namespace(folder, path);
1419         if (namespace && namespace->separator)
1420                 imap_path_separator_subst(real_path, namespace->separator);
1421
1422         return real_path;
1423 }
1424
1425 static gchar *imap_parse_atom(SockInfo *sock, gchar *src,
1426                               gchar *dest, gint dest_len, GString *str)
1427 {
1428         gchar *cur_pos = src;
1429
1430         g_return_val_if_fail(str != NULL, cur_pos);
1431
1432         while (*cur_pos == ' ') cur_pos++;
1433
1434         if (!strncmp(cur_pos, "NIL", 3)) {
1435                 *dest = '\0';
1436                 cur_pos += 3;
1437         } else if (*cur_pos == '\"') {
1438                 gchar *p;
1439
1440                 p = strchr_cpy(cur_pos + 1, '\"', dest, dest_len);
1441                 cur_pos = p ? p : cur_pos + 2;
1442         } else if (*cur_pos == '{') {
1443                 gchar buf[32];
1444                 gint len;
1445                 gchar *nextline;
1446
1447                 cur_pos = strchr_cpy(cur_pos + 1, '}', buf, sizeof(buf));
1448                 len = atoi(buf);
1449
1450                 if ((nextline = sock_getline(sock)) == NULL)
1451                         return cur_pos;
1452                 strretchomp(nextline);
1453                 log_print("IMAP4< %s\n", nextline);
1454                 g_string_assign(str, nextline);
1455
1456                 len = MIN(len, strlen(nextline));
1457                 memcpy(dest, nextline, MIN(len, dest_len - 1));
1458                 dest[MIN(len, dest_len - 1)] = '\0';
1459                 cur_pos = str->str + len;
1460         }
1461
1462         return cur_pos;
1463 }
1464
1465 static gchar *imap_parse_one_address(SockInfo *sock, gchar *start,
1466                                      gchar *out_from_str,
1467                                      gchar *out_fromname_str,
1468                                      GString *str)
1469 {
1470         gchar buf[IMAPBUFSIZE];
1471         gchar *userid;
1472         gchar *domain;
1473         gchar *cur_pos = start;
1474
1475         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1476         conv_unmime_header(out_fromname_str, IMAPBUFSIZE, buf, NULL);
1477
1478         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1479
1480         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1481         Xstrdup_a(userid, buf, return cur_pos + 1);
1482
1483         cur_pos = imap_parse_atom(sock, cur_pos, buf, sizeof(buf), str);
1484         Xstrdup_a(domain, buf, return cur_pos + 1);
1485
1486         if (out_fromname_str[0] != '\0') {
1487                 g_snprintf(out_from_str, IMAPBUFSIZE, "\"%s\" <%s@%s>",
1488                            out_fromname_str, userid, domain);
1489         } else {
1490                 g_snprintf(out_from_str, IMAPBUFSIZE, "%s@%s",
1491                            userid, domain);
1492                 strcpy(out_fromname_str, out_from_str);
1493         }
1494
1495         while (*cur_pos == ' ') cur_pos++;
1496         g_return_val_if_fail(*cur_pos == ')', NULL);
1497
1498         return cur_pos + 1;
1499 }
1500
1501 static gchar *imap_parse_address(SockInfo *sock, gchar *start,
1502                                  gchar **out_from_str,
1503                                  gchar **out_fromname_str,
1504                                  GString *str)
1505 {
1506         gchar buf[IMAPBUFSIZE];
1507         gchar name_buf[IMAPBUFSIZE];
1508         gchar *cur_pos = start;
1509         GString *addr_str;
1510
1511         if (out_from_str)     *out_from_str     = NULL;
1512         if (out_fromname_str) *out_fromname_str = NULL;
1513         buf[0] = name_buf[0] = '\0';
1514
1515         if (!strncmp(cur_pos, "NIL", 3)) {
1516                 if (out_from_str)     *out_from_str     = g_strdup("");
1517                 if (out_fromname_str) *out_fromname_str = g_strdup("");
1518                 return cur_pos + 3;
1519         }
1520
1521         g_return_val_if_fail(*cur_pos == '(', NULL);
1522         cur_pos++;
1523
1524         addr_str = g_string_new(NULL);
1525
1526         for (;;) {
1527                 gchar ch = *cur_pos++;
1528                 if (ch == ')') break;
1529                 if (ch == '(') {
1530                         cur_pos = imap_parse_one_address
1531                                 (sock, cur_pos, buf, name_buf, str);
1532                         if (!cur_pos) {
1533                                 g_string_free(addr_str, TRUE);
1534                                 return NULL;
1535                         }
1536                         if (addr_str->str[0] != '\0')
1537                                 g_string_append(addr_str, ", ");
1538                         g_string_append(addr_str, buf);
1539                 }
1540         }
1541
1542         if (out_from_str)     *out_from_str     = g_strdup(addr_str->str);
1543         if (out_fromname_str) *out_fromname_str = g_strdup(name_buf);
1544
1545         g_string_free(addr_str, TRUE);
1546
1547         return cur_pos;
1548 }
1549
1550 static MsgFlags imap_parse_flags(const gchar *flag_str)
1551 {
1552         const gchar *p = flag_str;
1553         MsgFlags flags;
1554
1555         flags.perm_flags = MSG_UNREAD;
1556         flags.tmp_flags  = MSG_IMAP;
1557
1558         while ((p = strchr(p, '\\')) != NULL) {
1559                 p++;
1560
1561                 if (g_strncasecmp(p, "Recent", 6) == 0) {
1562                         MSG_SET_PERM_FLAGS(flags, MSG_NEW|MSG_UNREAD);
1563                 } else if (g_strncasecmp(p, "Seen", 4) == 0) {
1564                         MSG_UNSET_PERM_FLAGS(flags, MSG_NEW|MSG_UNREAD);
1565                 } else if (g_strncasecmp(p, "Deleted", 7) == 0) {
1566                         MSG_SET_PERM_FLAGS(flags, MSG_DELETED);
1567                 } else if (g_strncasecmp(p, "Flagged", 7) == 0) {
1568                         MSG_SET_PERM_FLAGS(flags, MSG_MARKED);
1569                 }
1570         }
1571
1572         return flags;
1573 }
1574
1575 static MsgInfo *imap_parse_envelope(SockInfo *sock, GString *line_str)
1576 {
1577         MsgInfo *msginfo;
1578         gchar buf[IMAPBUFSIZE];
1579         gchar tmp[IMAPBUFSIZE];
1580         gchar *cur_pos;
1581         gint msgnum;
1582         guint32 uid = 0;
1583         size_t size = 0;
1584         gchar *date = NULL;
1585         time_t date_t = 0;
1586         gchar *subject = NULL;
1587         gchar *tmp_from;
1588         gchar *tmp_fromname;
1589         gchar *from = NULL;
1590         gchar *fromname = NULL;
1591         gchar *tmp_to;
1592         gchar *to = NULL;
1593         gchar *inreplyto = NULL;
1594         gchar *msgid = NULL;
1595         MsgFlags flags = {0, 0};
1596
1597         g_return_val_if_fail(line_str != NULL, NULL);
1598         g_return_val_if_fail(line_str->str[0] == '*' &&
1599                              line_str->str[1] == ' ', NULL);
1600
1601         cur_pos = line_str->str + 2;
1602
1603 #define PARSE_ONE_ELEMENT(ch) \
1604 { \
1605         cur_pos = strchr_cpy(cur_pos, ch, buf, sizeof(buf)); \
1606         g_return_val_if_fail(cur_pos != NULL, NULL); \
1607 }
1608
1609         PARSE_ONE_ELEMENT(' ');
1610         msgnum = atoi(buf);
1611
1612         PARSE_ONE_ELEMENT(' ');
1613         g_return_val_if_fail(!strcmp(buf, "FETCH"), NULL);
1614
1615         g_return_val_if_fail(*cur_pos == '(', NULL);
1616         cur_pos++;
1617
1618         while (*cur_pos != '\0' && *cur_pos != ')') {
1619                 while (*cur_pos == ' ') cur_pos++;
1620
1621                 if (!strncmp(cur_pos, "UID ", 4)) {
1622                         cur_pos += 4;
1623                         uid = strtoul(cur_pos, &cur_pos, 10);
1624                 } else if (!strncmp(cur_pos, "FLAGS ", 6)) {
1625                         cur_pos += 6;
1626                         g_return_val_if_fail(*cur_pos == '(', NULL);
1627                         cur_pos++;
1628                         PARSE_ONE_ELEMENT(')');
1629                         flags = imap_parse_flags(buf);
1630                 } else if (!strncmp(cur_pos, "RFC822.SIZE ", 12)) {
1631                         cur_pos += 12;
1632                         size = strtol(cur_pos, &cur_pos, 10);
1633                 } else if (!strncmp(cur_pos, "ENVELOPE ", 9)) {
1634                         cur_pos += 9;
1635                         g_return_val_if_fail(*cur_pos == '(', NULL);
1636                         cur_pos = imap_parse_atom
1637                                 (sock, cur_pos + 1, buf, sizeof(buf), line_str);
1638                         Xstrdup_a(date, buf, return NULL);
1639                         date_t = procheader_date_parse(NULL, date, 0);
1640
1641                         cur_pos = imap_parse_atom
1642                                 (sock, cur_pos, buf, sizeof(buf), line_str);
1643                         if (buf[0] != '\0') {
1644                                 conv_unmime_header(tmp, sizeof(tmp), buf, NULL);
1645                                 Xstrdup_a(subject, tmp, return NULL);
1646                         }
1647
1648                         g_return_val_if_fail(*cur_pos == ' ', NULL);
1649                         cur_pos = imap_parse_address(sock, cur_pos + 1,
1650                                                      &tmp_from, &tmp_fromname,
1651                                                      line_str);
1652                         Xstrdup_a(from, tmp_from,
1653                                   {g_free(tmp_from); g_free(tmp_fromname);
1654                                    return NULL;});
1655                         Xstrdup_a(fromname, tmp_fromname,
1656                                   {g_free(tmp_from); g_free(tmp_fromname);
1657                                    return NULL;});
1658                         g_free(tmp_from);
1659                         g_free(tmp_fromname);
1660
1661 #define SKIP_ONE_ELEMENT() \
1662 { \
1663         g_return_val_if_fail(*cur_pos == ' ', NULL); \
1664         cur_pos = imap_parse_address(sock, cur_pos + 1, NULL, NULL, \
1665                                      line_str); \
1666 }
1667
1668                         /* skip sender and reply-to */
1669                         SKIP_ONE_ELEMENT();
1670                         SKIP_ONE_ELEMENT();
1671
1672                         g_return_val_if_fail(*cur_pos == ' ', NULL);
1673                         cur_pos = imap_parse_address(sock, cur_pos + 1,
1674                                                      &tmp_to, NULL, line_str);
1675                         Xstrdup_a(to, tmp_to, {g_free(tmp_to); return NULL;});
1676                         g_free(tmp_to);
1677
1678                         /* skip Cc and Bcc */
1679                         SKIP_ONE_ELEMENT();
1680                         SKIP_ONE_ELEMENT();
1681
1682 #undef SKIP_ONE_ELEMENT
1683
1684                         g_return_val_if_fail(*cur_pos == ' ', NULL);
1685                         cur_pos = imap_parse_atom
1686                                 (sock, cur_pos, buf, sizeof(buf), line_str);
1687                         if (buf[0] != '\0') {
1688                                 eliminate_parenthesis(buf, '(', ')');
1689                                 extract_parenthesis(buf, '<', '>');
1690                                 remove_space(buf);
1691                                 Xstrdup_a(inreplyto, buf, return NULL);
1692                         }
1693
1694                         g_return_val_if_fail(*cur_pos == ' ', NULL);
1695                         cur_pos = imap_parse_atom
1696                                 (sock, cur_pos, buf, sizeof(buf), line_str);
1697                         if (buf[0] != '\0') {
1698                                 extract_parenthesis(buf, '<', '>');
1699                                 remove_space(buf);
1700                                 Xstrdup_a(msgid, buf, return NULL);
1701                         }
1702
1703                         g_return_val_if_fail(*cur_pos == ')', NULL);
1704                         cur_pos++;
1705                 } else {
1706                         g_warning("invalid FETCH response: %s\n", cur_pos);
1707                         break;
1708                 }
1709         }
1710
1711         msginfo = g_new0(MsgInfo, 1);
1712         msginfo->msgnum = uid;
1713         msginfo->size = size;
1714         msginfo->date = g_strdup(date);
1715         msginfo->date_t = date_t;
1716         msginfo->subject = g_strdup(subject);
1717         msginfo->from = g_strdup(from);
1718         msginfo->fromname = g_strdup(fromname);
1719         msginfo->to = g_strdup(to);
1720         msginfo->inreplyto = g_strdup(inreplyto);
1721         msginfo->msgid = g_strdup(msgid);
1722         msginfo->flags = flags;
1723
1724         return msginfo;
1725 }
1726
1727 static gint imap_set_message_flags(IMAPSession *session,
1728                                    guint32 first_uid,
1729                                    guint32 last_uid,
1730                                    IMAPFlags flags,
1731                                    gboolean is_set)
1732 {
1733         GString *buf;
1734         gint ok;
1735
1736         buf = g_string_new(is_set ? "+FLAGS (" : "-FLAGS (");
1737
1738         if (IMAP_IS_SEEN(flags))        g_string_append(buf, "\\Seen ");
1739         if (IMAP_IS_ANSWERED(flags))    g_string_append(buf, "\\Answered ");
1740         if (IMAP_IS_FLAGGED(flags))     g_string_append(buf, "\\Flagged ");
1741         if (IMAP_IS_DELETED(flags))     g_string_append(buf, "\\Deleted ");
1742         if (IMAP_IS_DRAFT(flags))       g_string_append(buf, "\\Draft");
1743
1744         if (buf->str[buf->len - 1] == ' ')
1745                 g_string_truncate(buf, buf->len - 1);
1746
1747         g_string_append_c(buf, ')');
1748
1749         ok = imap_cmd_store(SESSION(session)->sock, first_uid, last_uid,
1750                             buf->str);
1751         g_string_free(buf, TRUE);
1752
1753         return ok;
1754 }
1755
1756 static gint imap_select(IMAPSession *session, IMAPFolder *folder,
1757                         const gchar *path,
1758                         gint *exists, gint *recent, gint *unseen,
1759                         guint32 *uid_validity)
1760 {
1761         gchar *real_path;
1762         gint ok;
1763
1764         real_path = imap_get_real_path(folder, path);
1765         ok = imap_cmd_select(SESSION(session)->sock, real_path,
1766                              exists, recent, unseen, uid_validity);
1767         if (ok != IMAP_SUCCESS)
1768                 log_warning(_("can't select folder: %s\n"), real_path);
1769         g_free(real_path);
1770
1771         return ok;
1772 }
1773
1774 #define THROW(err) { ok = err; goto catch; }
1775
1776 static gint imap_get_uid(IMAPSession *session, gint msgnum, guint32 *uid)
1777 {
1778         gint ok;
1779         GPtrArray *argbuf;
1780         gchar *str;
1781         gint num;
1782
1783         *uid = 0;
1784         argbuf = g_ptr_array_new();
1785
1786         imap_cmd_gen_send(SESSION(session)->sock, "FETCH %d (UID)", msgnum);
1787         if ((ok = imap_cmd_ok(SESSION(session)->sock, argbuf)) != IMAP_SUCCESS)
1788                 THROW(ok);
1789
1790         str = search_array_contain_str(argbuf, "FETCH");
1791         if (!str) THROW(IMAP_ERROR);
1792
1793         if (sscanf(str, "%d FETCH (UID %d)", &num, uid) != 2 ||
1794             num != msgnum) {
1795                 g_warning("imap_get_uid(): invalid FETCH line.\n");
1796                 THROW(IMAP_ERROR);
1797         }
1798
1799 catch:
1800         ptr_array_free_strings(argbuf);
1801         g_ptr_array_free(argbuf, TRUE);
1802
1803         return ok;
1804 }
1805
1806 static gint imap_status(IMAPSession *session, IMAPFolder *folder,
1807                         const gchar *path,
1808                         gint *messages, gint *recent, gint *unseen,
1809                         guint32 *uid_validity)
1810 {
1811         gchar *real_path;
1812         gint ok;
1813         GPtrArray *argbuf;
1814         gchar *str;
1815
1816         *messages = *recent = *unseen = *uid_validity = 0;
1817
1818         argbuf = g_ptr_array_new();
1819
1820         real_path = imap_get_real_path(folder, path);
1821         if (strchr(real_path, ' ') != NULL)
1822                 imap_cmd_gen_send(SESSION(session)->sock, "STATUS \"%s\" "
1823                                         "(MESSAGES RECENT UNSEEN UIDVALIDITY)",
1824                                   real_path);
1825         else
1826                 imap_cmd_gen_send(SESSION(session)->sock, "STATUS %s "
1827                                         "(MESSAGES RECENT UNSEEN UIDVALIDITY)",
1828                                   real_path);
1829
1830         ok = imap_cmd_ok(SESSION(session)->sock, argbuf);
1831         if (ok != IMAP_SUCCESS) THROW(ok);
1832
1833         str = search_array_contain_str(argbuf, "STATUS");
1834         if (!str) THROW(IMAP_ERROR);
1835
1836         str = strchr(str, '(');
1837         if (!str) THROW(IMAP_ERROR);
1838         str++;
1839         while (*str != '\0' && *str != ')') {
1840                 while (*str == ' ') str++;
1841
1842                 if (!strncmp(str, "MESSAGES ", 9)) {
1843                         str += 9;
1844                         *messages = strtol(str, &str, 10);
1845                 } else if (!strncmp(str, "RECENT ", 7)) {
1846                         str += 7;
1847                         *recent = strtol(str, &str, 10);
1848                 } else if (!strncmp(str, "UNSEEN ", 7)) {
1849                         str += 7;
1850                         *unseen = strtol(str, &str, 10);
1851                 } else if (!strncmp(str, "UIDVALIDITY ", 12)) {
1852                         str += 12;
1853                         *uid_validity = strtoul(str, &str, 10);
1854                 } else {
1855                         g_warning("invalid STATUS response: %s\n", str);
1856                         break;
1857                 }
1858         }
1859
1860 catch:
1861         g_free(real_path);
1862         ptr_array_free_strings(argbuf);
1863         g_ptr_array_free(argbuf, TRUE);
1864
1865         return ok;
1866 }
1867
1868 #undef THROW
1869
1870
1871 /* low-level IMAP4rev1 commands */
1872
1873 static gint imap_cmd_login(SockInfo *sock,
1874                            const gchar *user, const gchar *pass)
1875 {
1876         gint ok;
1877
1878         if (strchr(user, ' ') != NULL)
1879                 imap_cmd_gen_send(sock, "LOGIN \"%s\" %s", user, pass);
1880         else
1881                 imap_cmd_gen_send(sock, "LOGIN %s %s", user, pass);
1882
1883         ok = imap_cmd_ok(sock, NULL);
1884         if (ok != IMAP_SUCCESS)
1885                 log_warning(_("IMAP4 login failed.\n"));
1886
1887         return ok;
1888 }
1889
1890 static gint imap_cmd_logout(SockInfo *sock)
1891 {
1892         imap_cmd_gen_send(sock, "LOGOUT");
1893         return imap_cmd_ok(sock, NULL);
1894 }
1895
1896 static gint imap_cmd_noop(SockInfo *sock)
1897 {
1898         imap_cmd_gen_send(sock, "NOOP");
1899         return imap_cmd_ok(sock, NULL);
1900 }
1901
1902 #define THROW(err) { ok = err; goto catch; }
1903
1904 static gint imap_cmd_namespace(SockInfo *sock, gchar **ns_str)
1905 {
1906         gint ok;
1907         GPtrArray *argbuf;
1908         gchar *str;
1909
1910         argbuf = g_ptr_array_new();
1911
1912         imap_cmd_gen_send(sock, "NAMESPACE");
1913         if ((ok = imap_cmd_ok(sock, argbuf)) != IMAP_SUCCESS) THROW(ok);
1914
1915         str = search_array_contain_str(argbuf, "NAMESPACE");
1916         if (!str) THROW(IMAP_ERROR);
1917
1918         *ns_str = g_strdup(str);
1919
1920 catch:
1921         ptr_array_free_strings(argbuf);
1922         g_ptr_array_free(argbuf, TRUE);
1923
1924         return ok;
1925 }
1926
1927 #undef THROW
1928
1929 static gint imap_cmd_list(SockInfo *sock, const gchar *ref,
1930                           const gchar *mailbox, GPtrArray *argbuf)
1931 {
1932         gchar *new_ref;
1933         gchar *new_mailbox;
1934
1935         if (!ref) ref = "\"\"";
1936         if (!mailbox) mailbox = "\"\"";
1937
1938         if (*ref != '"' && strchr(ref, ' ') != NULL)
1939                 new_ref = g_strdup_printf("\"%s\"", ref);
1940         else
1941                 new_ref = g_strdup(ref);
1942         if (*mailbox != '"' && strchr(mailbox, ' ') != NULL)
1943                 new_mailbox = g_strdup_printf("\"%s\"", mailbox);
1944         else
1945                 new_mailbox = g_strdup(mailbox);
1946
1947         imap_cmd_gen_send(sock, "LIST %s %s", new_ref, new_mailbox);
1948
1949         g_free(new_ref);
1950         g_free(new_mailbox);
1951
1952         return imap_cmd_ok(sock, argbuf);
1953 }
1954
1955 #define THROW goto catch
1956
1957 static gint imap_cmd_do_select(SockInfo *sock, const gchar *folder,
1958                                gboolean examine,
1959                                gint *exists, gint *recent, gint *unseen,
1960                                guint32 *uid_validity)
1961 {
1962         gint ok;
1963         gchar *resp_str;
1964         GPtrArray *argbuf;
1965         gchar *select_cmd;
1966
1967         *exists = *recent = *unseen = *uid_validity = 0;
1968         argbuf = g_ptr_array_new();
1969
1970         if (examine)
1971                 select_cmd = "EXAMINE";
1972         else
1973                 select_cmd = "SELECT";
1974
1975         if (strchr(folder, ' ') != NULL)
1976                 imap_cmd_gen_send(sock, "%s \"%s\"", select_cmd, folder);
1977         else
1978                 imap_cmd_gen_send(sock, "%s %s", select_cmd, folder);
1979
1980         if ((ok = imap_cmd_ok(sock, argbuf)) != IMAP_SUCCESS) THROW;
1981
1982         resp_str = search_array_contain_str(argbuf, "EXISTS");
1983         if (resp_str) {
1984                 if (sscanf(resp_str,"%d EXISTS", exists) != 1) {
1985                         g_warning("imap_cmd_select(): invalid EXISTS line.\n");
1986                         THROW;
1987                 }
1988         }
1989
1990         resp_str = search_array_contain_str(argbuf, "RECENT");
1991         if (resp_str) {
1992                 if (sscanf(resp_str, "%d RECENT", recent) != 1) {
1993                         g_warning("imap_cmd_select(): invalid RECENT line.\n");
1994                         THROW;
1995                 }
1996         }
1997
1998         resp_str = search_array_contain_str(argbuf, "UIDVALIDITY");
1999         if (resp_str) {
2000                 if (sscanf(resp_str, "OK [UIDVALIDITY %u] ", uid_validity)
2001                     != 1) {
2002                         g_warning("imap_cmd_select(): invalid UIDVALIDITY line.\n");
2003                         THROW;
2004                 }
2005         }
2006
2007         resp_str = search_array_contain_str(argbuf, "UNSEEN");
2008         if (resp_str) {
2009                 if (sscanf(resp_str, "OK [UNSEEN %d] ", unseen) != 1) {
2010                         g_warning("imap_cmd_select(): invalid UNSEEN line.\n");
2011                         THROW;
2012                 }
2013         }
2014
2015 catch:
2016         ptr_array_free_strings(argbuf);
2017         g_ptr_array_free(argbuf, TRUE);
2018
2019         return ok;
2020 }
2021
2022 static gint imap_cmd_select(SockInfo *sock, const gchar *folder,
2023                             gint *exists, gint *recent, gint *unseen,
2024                             guint32 *uid_validity)
2025 {
2026         return imap_cmd_do_select(sock, folder, FALSE,
2027                                   exists, recent, unseen, uid_validity);
2028 }
2029
2030 static gint imap_cmd_examine(SockInfo *sock, const gchar *folder,
2031                              gint *exists, gint *recent, gint *unseen,
2032                              guint32 *uid_validity)
2033 {
2034         return imap_cmd_do_select(sock, folder, TRUE,
2035                                   exists, recent, unseen, uid_validity);
2036 }
2037
2038 #undef THROW
2039
2040 static gint imap_cmd_create(SockInfo *sock, const gchar *folder)
2041 {
2042         if (strchr(folder, ' ') != NULL)
2043                 imap_cmd_gen_send(sock, "CREATE \"%s\"", folder);
2044         else
2045                 imap_cmd_gen_send(sock, "CREATE %s", folder);
2046
2047         return imap_cmd_ok(sock, NULL);
2048 }
2049
2050 static gint imap_cmd_delete(SockInfo *sock, const gchar *folder)
2051 {
2052         if (strchr(folder, ' ') != NULL)
2053                 imap_cmd_gen_send(sock, "DELETE \"%s\"", folder);
2054         else
2055                 imap_cmd_gen_send(sock, "DELETE %s", folder);
2056
2057         return imap_cmd_ok(sock, NULL);
2058 }
2059
2060 static gint imap_cmd_fetch(SockInfo *sock, guint32 uid, const gchar *filename)
2061 {
2062         gint ok;
2063         gchar buf[IMAPBUFSIZE];
2064         gchar *cur_pos;
2065         gchar size_str[32];
2066         glong size_num;
2067
2068         g_return_val_if_fail(filename != NULL, IMAP_ERROR);
2069
2070         imap_cmd_gen_send(sock, "UID FETCH %d BODY[]", uid);
2071
2072         if (sock_gets(sock, buf, sizeof(buf)) < 0)
2073                 return IMAP_ERROR;
2074         strretchomp(buf);
2075         if (buf[0] != '*' || buf[1] != ' ')
2076                 return IMAP_ERROR;
2077         log_print("IMAP4< %s\n", buf);
2078
2079         cur_pos = strchr(buf, '{');
2080         g_return_val_if_fail(cur_pos != NULL, IMAP_ERROR);
2081         cur_pos = strchr_cpy(cur_pos + 1, '}', size_str, sizeof(size_str));
2082         g_return_val_if_fail(cur_pos != NULL, IMAP_ERROR);
2083         size_num = atol(size_str);
2084
2085         if (*cur_pos != '\0') return IMAP_ERROR;
2086
2087         if (recv_bytes_write_to_file(sock, size_num, filename) != 0)
2088                 return IMAP_ERROR;
2089
2090         if (imap_cmd_gen_recv(sock, buf, sizeof(buf)) != IMAP_SUCCESS)
2091                 return IMAP_ERROR;
2092
2093         if (buf[0] == '\0' || buf[strlen(buf) - 1] != ')')
2094                 return IMAP_ERROR;
2095
2096         ok = imap_cmd_ok(sock, NULL);
2097
2098         return ok;
2099 }
2100
2101 static gint imap_cmd_append(SockInfo *sock, const gchar *destfolder,
2102                             const gchar *file)
2103 {
2104         gint ok;
2105         gint size;
2106
2107         g_return_val_if_fail(file != NULL, IMAP_ERROR);
2108
2109         size = get_file_size(file);
2110         imap_cmd_gen_send(sock, "APPEND %s {%d}", destfolder, size);
2111         ok = imap_cmd_ok(sock, NULL);
2112         if (ok != IMAP_SUCCESS) {
2113                 log_warning(_("can't append %s to %s\n"), file, destfolder);
2114                 return -1;
2115         }
2116
2117         return ok;
2118 }
2119
2120 static gint imap_cmd_copy(SockInfo *sock, guint32 uid, const gchar *destfolder)
2121 {
2122         gint ok;
2123
2124         g_return_val_if_fail(destfolder != NULL, IMAP_ERROR);
2125
2126         if (strchr(destfolder, ' ') != NULL)
2127                 imap_cmd_gen_send(sock, "UID COPY %d \"%s\"", uid, destfolder);
2128         else
2129                 imap_cmd_gen_send(sock, "UID COPY %d %s", uid, destfolder);
2130
2131         ok = imap_cmd_ok(sock, NULL);
2132         if (ok != IMAP_SUCCESS) {
2133                 log_warning(_("can't copy %d to %s\n"), uid, destfolder);
2134                 return -1;
2135         }
2136
2137         return ok;
2138 }
2139
2140 gint imap_cmd_envelope(SockInfo *sock, guint32 first_uid, guint32 last_uid)
2141 {
2142         imap_cmd_gen_send
2143                 (sock, "UID FETCH %d:%d (UID FLAGS RFC822.SIZE ENVELOPE)",
2144                  first_uid, last_uid);
2145
2146         return IMAP_SUCCESS;
2147 }
2148
2149 static gint imap_cmd_store(SockInfo *sock, guint32 first_uid, guint32 last_uid,
2150                            gchar *sub_cmd)
2151 {
2152         gint ok;
2153
2154         imap_cmd_gen_send(sock, "UID STORE %d:%d %s",
2155                           first_uid, last_uid, sub_cmd);
2156
2157         if ((ok = imap_cmd_ok(sock, NULL)) != IMAP_SUCCESS) {
2158                 log_warning(_("error while imap command: STORE %d:%d %s\n"),
2159                             first_uid, last_uid, sub_cmd);
2160                 return ok;
2161         }
2162
2163         return IMAP_SUCCESS;
2164 }
2165
2166 static gint imap_cmd_expunge(SockInfo *sock)
2167 {
2168         gint ok;
2169
2170         imap_cmd_gen_send(sock, "EXPUNGE");
2171         if ((ok = imap_cmd_ok(sock, NULL)) != IMAP_SUCCESS) {
2172                 log_warning(_("error while imap command: EXPUNGE\n"));
2173                 return ok;
2174         }
2175
2176         return IMAP_SUCCESS;
2177 }
2178
2179 static gint imap_cmd_ok(SockInfo *sock, GPtrArray *argbuf)
2180 {
2181         gint ok;
2182         gchar buf[IMAPBUFSIZE];
2183         gint cmd_num;
2184         gchar cmd_status[IMAPBUFSIZE];
2185
2186         while ((ok = imap_cmd_gen_recv(sock, buf, sizeof(buf)))
2187                == IMAP_SUCCESS) {
2188                 if (buf[0] == '*' && buf[1] == ' ') {
2189                         if (argbuf)
2190                                 g_ptr_array_add(argbuf, g_strdup(buf + 2));
2191                         continue;
2192                 }
2193
2194                 if (sscanf(buf, "%d %s", &cmd_num, cmd_status) < 2)
2195                         return IMAP_ERROR;
2196                 else if (cmd_num == imap_cmd_count &&
2197                          !strcmp(cmd_status, "OK")) {
2198                         if (argbuf)
2199                                 g_ptr_array_add(argbuf, g_strdup(buf));
2200                         return IMAP_SUCCESS;
2201                 } else
2202                         return IMAP_ERROR;
2203         }
2204
2205         return ok;
2206 }
2207
2208 static void imap_cmd_gen_send(SockInfo *sock, const gchar *format, ...)
2209 {
2210         gchar buf[IMAPBUFSIZE];
2211         gchar tmp[IMAPBUFSIZE];
2212         gchar *p;
2213         va_list args;
2214
2215         va_start(args, format);
2216         g_vsnprintf(tmp, sizeof(tmp), format, args);
2217         va_end(args);
2218
2219         imap_cmd_count++;
2220
2221         g_snprintf(buf, sizeof(buf), "%d %s\r\n", imap_cmd_count, tmp);
2222         if (!strncasecmp(tmp, "LOGIN ", 6) && (p = strchr(tmp + 6, ' '))) {
2223                 *p = '\0';
2224                 log_print("IMAP4> %d %s ********\n", imap_cmd_count, tmp);
2225         } else
2226                 log_print("IMAP4> %d %s\n", imap_cmd_count, tmp);
2227
2228         sock_write(sock, buf, strlen(buf));
2229 }
2230
2231 static gint imap_cmd_gen_recv(SockInfo *sock, gchar *buf, gint size)
2232 {
2233         if (sock_gets(sock, buf, size) == -1)
2234                 return IMAP_SOCKET;
2235
2236         strretchomp(buf);
2237
2238         log_print("IMAP4< %s\n", buf);
2239
2240         return IMAP_SUCCESS;
2241 }
2242
2243
2244 /* misc utility functions */
2245
2246 static gchar *strchr_cpy(const gchar *src, gchar ch, gchar *dest, gint len)
2247 {
2248         gchar *tmp;
2249
2250         dest[0] = '\0';
2251         tmp = strchr(src, ch);
2252         if (!tmp)
2253                 return NULL;
2254
2255         memcpy(dest, src, MIN(tmp - src, len - 1));
2256         dest[MIN(tmp - src, len - 1)] = '\0';
2257
2258         return tmp + 1;
2259 }
2260
2261 static gchar *search_array_contain_str(GPtrArray *array, gchar *str)
2262 {
2263         gint i;
2264
2265         for (i = 0; i < array->len; i++) {
2266                 gchar *tmp;
2267
2268                 tmp = g_ptr_array_index(array, i);
2269                 if (strstr(tmp, str) != NULL)
2270                         return tmp;
2271         }
2272
2273         return NULL;
2274 }
2275
2276 static void imap_path_separator_subst(gchar *str, gchar separator)
2277 {
2278         if (separator && separator != '/')
2279                 subst_char(str, '/', separator);
2280 }