src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
   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 3 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, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #ifdef HAVE_LIBETPAN
  26
  27 #include "defs.h"
  28
  29 #include <glib.h>
  30 #include <glib/gi18n.h>
  31 #include <stdio.h>
  32 #include <string.h>
  33 #include <stdlib.h>
  34 #include <dirent.h>
  35 #include <unistd.h>
  36 #include <time.h>
  37 #include <libetpan/libetpan.h>
  38
  39 #include "nntp-thread.h"
  40 #include "news.h"
  41 #include "news_gtk.h"
  42 #include "socket.h"
  43 #include "recv.h"
  44 #include "procmsg.h"
  45 #include "procheader.h"
  46 #include "folder.h"
  47 #include "session.h"
  48 #include "statusbar.h"
  49 #include "codeconv.h"
  50 #include "utils.h"
  51 #include "prefs_common.h"
  52 #include "prefs_account.h"
  53 #include "inputdialog.h"
  54 #include "log.h"
  55 #include "progressindicator.h"
  56 #include "remotefolder.h"
  57 #include "alertpanel.h"
  58 #include "inc.h"
  59 #include "account.h"
  60 #ifdef USE_GNUTLS
  61 #  include "ssl.h"
  62 #endif
  63 #include "main.h"
  64
  65 #define NNTP_PORT       119
  66 #ifdef USE_GNUTLS
  67 #define NNTPS_PORT      563
  68 #endif
  69
  70 typedef struct _NewsFolder      NewsFolder;
  71 typedef struct _NewsSession     NewsSession;
  72
  73 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  74 #define NEWS_SESSION(obj)       ((NewsSession *)obj)
  75
  76 struct _NewsFolder
  77 {
  78         RemoteFolder rfolder;
  79
  80         gboolean use_auth;
  81         gboolean lock_count;
  82         guint refcnt;
  83 };
  84
  85 struct _NewsSession
  86 {
  87         Session session;
  88         Folder *folder;
  89         gchar *group;
  90 };
  91
  92 static void news_folder_init(Folder *folder, const gchar *name,
  93                              const gchar *path);
  94
  95 static Folder   *news_folder_new        (const gchar    *name,
  96                                          const gchar    *folder);
  97 static void      news_folder_destroy    (Folder         *folder);
  98
  99 static gchar *news_fetch_msg            (Folder         *folder,
 100                                          FolderItem     *item,
 101                                          gint            num);
 102 static void news_remove_cached_msg      (Folder         *folder,
 103                                          FolderItem     *item,
 104                                          MsgInfo        *msginfo);
 105 #ifdef USE_GNUTLS
 106 static Session *news_session_new         (Folder        *folder,
 107                                           const gchar   *server,
 108                                           gushort        port,
 109                                           const gchar   *userid,
 110                                           const gchar   *passwd,
 111                                           SSLType        ssl_type);
 112 #else
 113 static Session *news_session_new         (Folder        *folder,
 114                                           const gchar   *server,
 115                                           gushort        port,
 116                                           const gchar   *userid,
 117                                           const gchar   *passwd);
 118 #endif
 119
 120 static gint news_get_article             (Folder        *folder,
 121                                           gint           num,
 122                                           gchar         *filename);
 123
 124 static gint news_select_group            (Folder        *folder,
 125                                           const gchar   *group,
 126                                           gint          *num,
 127                                           gint          *first,
 128                                           gint          *last);
 129 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 130 static gint news_get_num_list                    (Folder        *folder,
 131                                           FolderItem    *item,
 132                                           GSList       **list,
 133                                           gboolean      *old_uids_valid);
 134 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 135                                           FolderItem    *item,
 136                                           gint           num);
 137 static GSList *news_get_msginfos                 (Folder        *folder,
 138                                           FolderItem    *item,
 139                                           GSList        *msgnum_list);
 140 static gboolean news_scan_required               (Folder        *folder,
 141                                           FolderItem    *item);
 142
 143 static gchar *news_folder_get_path       (Folder        *folder);
 144 static gchar *news_item_get_path                 (Folder        *folder,
 145                                           FolderItem    *item);
 146 static void news_synchronise             (FolderItem    *item, gint days);
 147 static int news_remove_msg               (Folder        *folder,
 148                                           FolderItem    *item,
 149                                           gint           msgnum);
 150 static gint news_rename_folder           (Folder *folder,
 151                                           FolderItem *item,
 152                                           const gchar *name);
 153 static gint news_remove_folder           (Folder        *folder,
 154                                           FolderItem    *item);
 155 static FolderClass news_class;
 156
 157 FolderClass *news_get_class(void)
 158 {
 159         if (news_class.idstr == NULL) {
 160                 news_class.type = F_NEWS;
 161                 news_class.idstr = "news";
 162                 news_class.uistr = "News";
 163                 news_class.supports_server_search = FALSE;
 164
 165                 /* Folder functions */
 166                 news_class.new_folder = news_folder_new;
 167                 news_class.destroy_folder = news_folder_destroy;
 168
 169                 /* FolderItem functions */
 170                 news_class.item_get_path = news_item_get_path;
 171                 news_class.get_num_list = news_get_num_list;
 172                 news_class.scan_required = news_scan_required;
 173                 news_class.rename_folder = news_rename_folder;
 174                 news_class.remove_folder = news_remove_folder;
 175
 176                 /* Message functions */
 177                 news_class.get_msginfo = news_get_msginfo;
 178                 news_class.get_msginfos = news_get_msginfos;
 179                 news_class.fetch_msg = news_fetch_msg;
 180                 news_class.synchronise = news_synchronise;
 181                 news_class.search_msgs = folder_item_search_msgs_local;
 182                 news_class.remove_msg = news_remove_msg;
 183                 news_class.remove_cached_msg = news_remove_cached_msg;
 184         };
 185
 186         return &news_class;
 187 }
 188
 189 guint nntp_folder_get_refcnt(Folder *folder)
 190 {
 191         return ((NewsFolder *)folder)->refcnt;
 192 }
 193
 194 void nntp_folder_ref(Folder *folder)
 195 {
 196         ((NewsFolder *)folder)->refcnt++;
 197 }
 198
 199 void nntp_folder_unref(Folder *folder)
 200 {
 201         if (((NewsFolder *)folder)->refcnt > 0)
 202                 ((NewsFolder *)folder)->refcnt--;
 203 }
 204
 205 static int news_remove_msg               (Folder        *folder,
 206                                           FolderItem    *item,
 207                                           gint           msgnum)
 208 {
 209         gchar *path, *filename;
 210
 211         cm_return_val_if_fail(folder != NULL, -1);
 212         cm_return_val_if_fail(item != NULL, -1);
 213
 214         path = folder_item_get_path(item);
 215         if (!is_dir_exist(path))
 216                 make_dir_hier(path);
 217
 218         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 219         g_free(path);
 220         claws_unlink(filename);
 221         g_free(filename);
 222         return 0;
 223 }
 224
 225 static void news_folder_lock(NewsFolder *folder)
 226 {
 227         folder->lock_count++;
 228 }
 229
 230 static void news_folder_unlock(NewsFolder *folder)
 231 {
 232         if (folder->lock_count > 0)
 233                 folder->lock_count--;
 234 }
 235
 236 int news_folder_locked(Folder *folder)
 237 {
 238         if (folder == NULL)
 239                 return 0;
 240
 241         return NEWS_FOLDER(folder)->lock_count;
 242 }
 243
 244 static Folder *news_folder_new(const gchar *name, const gchar *path)
 245 {
 246         Folder *folder;
 247
 248         folder = (Folder *)g_new0(NewsFolder, 1);
 249         folder->klass = &news_class;
 250         news_folder_init(folder, name, path);
 251
 252         return folder;
 253 }
 254
 255 static void news_folder_destroy(Folder *folder)
 256 {
 257         gchar *dir;
 258
 259         while (nntp_folder_get_refcnt(folder) > 0)
 260                 gtk_main_iteration();
 261
 262         dir = news_folder_get_path(folder);
 263         if (is_dir_exist(dir))
 264                 remove_dir_recursive(dir);
 265         g_free(dir);
 266
 267         nntp_done(folder);
 268         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 269 }
 270
 271 static void news_folder_init(Folder *folder, const gchar *name,
 272                              const gchar *path)
 273 {
 274         folder_remote_folder_init(folder, name, path);
 275 }
 276
 277 static void news_session_destroy(Session *session)
 278 {
 279         NewsSession *news_session = NEWS_SESSION(session);
 280
 281         cm_return_if_fail(session != NULL);
 282
 283         if (news_session->group)
 284                 g_free(news_session->group);
 285 }
 286
 287 static gboolean nntp_ping(gpointer data)
 288 {
 289         Session *session = (Session *)data;
 290         NewsSession *news_session = NEWS_SESSION(session);
 291         int r;
 292         struct tm lt;
 293
 294         if (session->state != SESSION_READY || news_folder_locked(news_session->folder))
 295                 return FALSE;
 296
 297         news_folder_lock(NEWS_FOLDER(news_session->folder));
 298
 299         if ((r = nntp_threaded_date(news_session->folder, &lt)) != NEWSNNTP_NO_ERROR) {
 300                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 301                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 302                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 303                               " disconnected.\n"),
 304                             news_session->folder->account->nntp_server,
 305                             news_session->folder->account->set_nntpport ?
 306                             news_session->folder->account->nntpport : NNTP_PORT);
 307                         REMOTE_FOLDER(news_session->folder)->session = NULL;
 308                         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 309                         session->state = SESSION_DISCONNECTED;
 310                         session->sock = NULL;
 311                         session_destroy(session);
 312                         return FALSE;
 313                 }
 314         }
 315
 316         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 317         session_set_access_time(session);
 318         return TRUE;
 319 }
 320
 321
 322 #ifdef USE_GNUTLS
 323 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 324                                  const gchar *userid, const gchar *passwd,
 325                                  SSLType ssl_type)
 326 #else
 327 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 328                                  const gchar *userid, const gchar *passwd)
 329 #endif
 330 {
 331         NewsSession *session;
 332         int r = 0;
 333         cm_return_val_if_fail(server != NULL, NULL);
 334
 335         log_message(LOG_PROTOCOL, _("Account '%s': Connecting to NNTP server: %s:%d...\n"),
 336                                     folder->account->account_name, server, port);
 337
 338         session = g_new0(NewsSession, 1);
 339         session_init(SESSION(session), folder->account, FALSE);
 340         SESSION(session)->type             = SESSION_NEWS;
 341         SESSION(session)->server           = g_strdup(server);
 342         SESSION(session)->port             = port;
 343         SESSION(session)->sock             = NULL;
 344         SESSION(session)->destroy          = news_session_destroy;
 345
 346         nntp_init(folder);
 347
 348 #ifdef USE_GNUTLS
 349         if (ssl_type != SSL_NONE)
 350                 r = nntp_threaded_connect_ssl(folder, server, port);
 351         else
 352 #endif
 353                 r = nntp_threaded_connect(folder, server, port);
 354
 355         if (r != NEWSNNTP_NO_ERROR) {
 356                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d...\n"), server, port);
 357                 session_destroy(SESSION(session));
 358                 return NULL;
 359         }
 360
 361         session->folder = folder;
 362
 363         return SESSION(session);
 364 }
 365
 366 static Session *news_session_new_for_folder(Folder *folder)
 367 {
 368         Session *session;
 369         PrefsAccount *ac;
 370         const gchar *userid = NULL;
 371         gchar *passwd = NULL;
 372         gushort port;
 373         int r;
 374
 375         cm_return_val_if_fail(folder != NULL, NULL);
 376         cm_return_val_if_fail(folder->account != NULL, NULL);
 377
 378         ac = folder->account;
 379
 380 #ifdef USE_GNUTLS
 381         port = ac->set_nntpport ? ac->nntpport
 382                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 383         session = news_session_new(folder, ac->nntp_server, port, userid, passwd,
 384                                    ac->ssl_nntp);
 385 #else
 386         if (ac->ssl_nntp != SSL_NONE) {
 387                 if (alertpanel_full(_("Insecure connection"),
 388                         _("This connection is configured to be secured "
 389                           "using SSL, but SSL is not available in this "
 390                           "build of Claws Mail. \n\n"
 391                           "Do you want to continue connecting to this "
 392                           "server? The communication would not be "
 393                           "secure."),
 394                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 395                           NULL, FALSE, NULL, ALERT_WARNING,
 396                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 397                         return NULL;
 398         }
 399         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 400         session = news_session_new(folder, ac->nntp_server, port, userid, passwd);
 401 #endif
 402
 403         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 404                 userid = ac->userid;
 405                 if (password_get(userid, ac->nntp_server, "nntp", port, &passwd)) {
 406                         /* NOP */;
 407                 } else if (ac->passwd && ac->passwd[0])
 408                         passwd = g_strdup(ac->passwd);
 409                 else
 410                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 411                                                                   userid,
 412                                                                   &(ac->session_passwd));
 413         }
 414
 415         if (session != NULL)
 416                 r = nntp_threaded_mode_reader(folder);
 417         else
 418                 r = NEWSNNTP_ERROR_CONNECTION_REFUSED;
 419
 420         if (r != NEWSNNTP_NO_ERROR) {
 421             if (r == NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 422                 /*
 423                    FIX ME when libetpan implements 480 to indicate authorization
 424                    is required to use this capability. Libetpan treats a 480 as a
 425                    381 which is clearly wrong.
 426                    RFC 4643 section 2.
 427                    Response code 480
 428                    Generic response
 429                    Meaning: command unavailable until the client
 430                    has authenticated itself.
 431                 */
 432                 /* if the server does not advertise the capability MODE-READER,
 433                    we normally should not send MODE READER. However this can't
 434                    hurt: a transit-only server returns 502 and closes the cnx.
 435                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 436                 */
 437                 log_error(LOG_PROTOCOL, _("Libetpan does not support return code 480 "
 438                 "so for now we choose to continue\n"));
 439             }
 440             else if (r == NEWSNNTP_ERROR_UNEXPECTED_RESPONSE) {
 441                 /* if the server does not advertise the capability MODE-READER,
 442                    we normally should not send MODE READER. However this can't
 443                    hurt: a transit-only server returns 502 and closes the cnx.
 444                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 445                 */
 446                 log_error(LOG_PROTOCOL, _("Mode reader failed, continuing nevertheless\n"));
 447             }
 448             else {
 449                 /* An error state bail out */
 450                 log_error(LOG_PROTOCOL, _("Error creating session with %s:%d\n"), ac->nntp_server, port);
 451                 if (session != NULL)
 452                         session_destroy(SESSION(session));
 453                 g_free(passwd);
 454                 if (ac->session_passwd) {
 455                         g_free(ac->session_passwd);
 456                         ac->session_passwd = NULL;
 457                 }
 458                 return NULL;
 459             }
 460         }
 461
 462         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 463                 if (nntp_threaded_login(folder, userid, passwd) !=
 464                         NEWSNNTP_NO_ERROR) {
 465                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d...\n"), ac->nntp_server, port);
 466                         session_destroy(SESSION(session));
 467                         g_free(passwd);
 468                         if (ac->session_passwd) {
 469                                 g_free(ac->session_passwd);
 470                                 ac->session_passwd = NULL;
 471                         }
 472                         return NULL;
 473                 }
 474         }
 475         g_free(passwd);
 476
 477         return session;
 478 }
 479
 480 static NewsSession *news_session_get(Folder *folder)
 481 {
 482         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 483
 484         cm_return_val_if_fail(folder != NULL, NULL);
 485         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 486         cm_return_val_if_fail(folder->account != NULL, NULL);
 487
 488         if (prefs_common.work_offline &&
 489             !inc_offline_should_override(FALSE,
 490                 _("Claws Mail needs network access in order "
 491                   "to access the News server."))) {
 492                 return NULL;
 493         }
 494
 495         if (!rfolder->session) {
 496                 rfolder->session = news_session_new_for_folder(folder);
 497                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 498                 return NEWS_SESSION(rfolder->session);
 499         }
 500
 501         /* Handle port change (also ssl/nossl change) without needing to
 502          * restart application. */
 503         if (rfolder->session->port != folder->account->nntpport) {
 504                 session_destroy(rfolder->session);
 505                 rfolder->session = news_session_new_for_folder(folder);
 506                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 507                 goto newsession;
 508         }
 509
 510         if (time(NULL) - rfolder->session->last_access_time <
 511                 SESSION_TIMEOUT_INTERVAL) {
 512                 return NEWS_SESSION(rfolder->session);
 513         }
 514
 515         if (!nntp_ping(rfolder->session)) {
 516                 rfolder->session = news_session_new_for_folder(folder);
 517                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 518         }
 519
 520 newsession:
 521         if (rfolder->session)
 522                 session_set_access_time(rfolder->session);
 523
 524         return NEWS_SESSION(rfolder->session);
 525 }
 526
 527 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 528 {
 529         gchar *path, *filename;
 530
 531         path = folder_item_get_path(item);
 532
 533         if (!is_dir_exist(path)) {
 534                 g_free(path);
 535                 return;
 536         }
 537
 538         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 539         g_free(path);
 540
 541         if (is_file_exist(filename)) {
 542                 claws_unlink(filename);
 543         }
 544         g_free(filename);
 545 }
 546
 547 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 548 {
 549         gchar *path, *filename;
 550         NewsSession *session;
 551         gint ok;
 552
 553         cm_return_val_if_fail(folder != NULL, NULL);
 554         cm_return_val_if_fail(item != NULL, NULL);
 555
 556         path = folder_item_get_path(item);
 557         if (!is_dir_exist(path))
 558                 make_dir_hier(path);
 559         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 560         g_free(path);
 561
 562         if (is_file_exist(filename)) {
 563                 debug_print("article %d has been already cached.\n", num);
 564                 return filename;
 565         }
 566
 567         session = news_session_get(folder);
 568         if (!session) {
 569                 g_free(filename);
 570                 return NULL;
 571         }
 572
 573         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 574         if (ok != NEWSNNTP_NO_ERROR) {
 575                 if (ok == NEWSNNTP_ERROR_STREAM) {
 576                         session_destroy(SESSION(session));
 577                         REMOTE_FOLDER(folder)->session = NULL;
 578                 }
 579                 g_free(filename);
 580                 return NULL;
 581         }
 582
 583         debug_print("getting article %d...\n", num);
 584         ok = news_get_article(folder,
 585                               num, filename);
 586         if (ok != NEWSNNTP_NO_ERROR) {
 587                 g_warning("can't read article %d\n", num);
 588                 if (ok == NEWSNNTP_ERROR_STREAM) {
 589                         session_destroy(SESSION(session));
 590                         REMOTE_FOLDER(folder)->session = NULL;
 591                 }
 592                 g_free(filename);
 593                 return NULL;
 594         }
 595         GTK_EVENTS_FLUSH();
 596         return filename;
 597 }
 598
 599 static NewsGroupInfo *news_group_info_new(const gchar *name,
 600                                           gint first, gint last, gchar type)
 601 {
 602         NewsGroupInfo *ginfo;
 603
 604         ginfo = g_new(NewsGroupInfo, 1);
 605         ginfo->name = g_strdup(name);
 606         ginfo->first = first;
 607         ginfo->last = last;
 608         ginfo->type = type;
 609
 610         return ginfo;
 611 }
 612
 613 static void news_group_info_free(NewsGroupInfo *ginfo)
 614 {
 615         g_free(ginfo->name);
 616         g_free(ginfo);
 617 }
 618
 619 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 620                                     NewsGroupInfo *ginfo2)
 621 {
 622         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 623 }
 624
 625 GSList *news_get_group_list(Folder *folder)
 626 {
 627         gchar *path, *filename;
 628         FILE *fp;
 629         GSList *list = NULL;
 630         GSList *last = NULL;
 631         gchar buf[BUFFSIZE];
 632
 633         cm_return_val_if_fail(folder != NULL, NULL);
 634         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 635
 636         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 637         if (!is_dir_exist(path))
 638                 make_dir_hier(path);
 639         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 640         g_free(path);
 641
 642         if ((fp = g_fopen(filename, "rb")) == NULL) {
 643                 NewsSession *session;
 644                 gint ok;
 645                 clist *grouplist = NULL;
 646                 clistiter *cur;
 647                 fp = g_fopen(filename, "wb");
 648
 649                 if (!fp) {
 650                         g_free(filename);
 651                         return NULL;
 652                 }
 653                 session = news_session_get(folder);
 654                 if (!session) {
 655                         fclose(fp);
 656                         g_free(filename);
 657                         return NULL;
 658                 }
 659
 660                 ok = nntp_threaded_list(folder, &grouplist);
 661
 662                 if (ok != NEWSNNTP_NO_ERROR) {
 663                         if (ok == NEWSNNTP_ERROR_STREAM) {
 664                                 session_destroy(SESSION(session));
 665                                 REMOTE_FOLDER(folder)->session = NULL;
 666                         }
 667                         fclose(fp);
 668                         g_free(filename);
 669                         return NULL;
 670                 }
 671
 672                 if (grouplist) {
 673                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 674                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 675                                                                         clist_content(cur);
 676                                 if (fprintf(fp, "%s %d %d %c\n",
 677                                         info->grp_name,
 678                                         info->grp_last,
 679                                         info->grp_first,
 680                                         info->grp_type) < 0) {
 681                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 682                                         session_destroy(SESSION(session));
 683                                         REMOTE_FOLDER(folder)->session = NULL;
 684                                         fclose(fp);
 685                                         g_free(filename);
 686                                         newsnntp_list_free(grouplist);
 687                                         return NULL;
 688                                 }
 689                         }
 690                         newsnntp_list_free(grouplist);
 691                 }
 692                 if (fclose(fp) == EOF) {
 693                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 694                         session_destroy(SESSION(session));
 695                         REMOTE_FOLDER(folder)->session = NULL;
 696                         g_free(filename);
 697                         return NULL;
 698                 }
 699
 700                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 701                         FILE_OP_ERROR(filename, "fopen");
 702                         g_free(filename);
 703                         return NULL;
 704                 }
 705         }
 706
 707         while (fgets(buf, sizeof(buf), fp) != NULL) {
 708                 gchar *p = buf;
 709                 gchar *name;
 710                 gint last_num;
 711                 gint first_num;
 712                 gchar type;
 713                 NewsGroupInfo *ginfo;
 714
 715                 p = strchr(p, ' ');
 716                 if (!p) continue;
 717                 *p = '\0';
 718                 p++;
 719                 name = buf;
 720
 721                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 722                         continue;
 723
 724                 ginfo = news_group_info_new(name, first_num, last_num, type);
 725
 726                 if (!last)
 727                         last = list = g_slist_append(NULL, ginfo);
 728                 else {
 729                         last = g_slist_append(last, ginfo);
 730                         last = last->next;
 731                 }
 732         }
 733
 734         fclose(fp);
 735         g_free(filename);
 736
 737         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 738
 739         return list;
 740 }
 741
 742 void news_group_list_free(GSList *group_list)
 743 {
 744         GSList *cur;
 745
 746         if (!group_list) return;
 747
 748         for (cur = group_list; cur != NULL; cur = cur->next)
 749                 news_group_info_free((NewsGroupInfo *)cur->data);
 750         g_slist_free(group_list);
 751 }
 752
 753 void news_remove_group_list_cache(Folder *folder)
 754 {
 755         gchar *path, *filename;
 756
 757         cm_return_if_fail(folder != NULL);
 758         cm_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 759
 760         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 761         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 762         g_free(path);
 763
 764         if (is_file_exist(filename)) {
 765                 if (claws_unlink(filename) < 0)
 766                         FILE_OP_ERROR(filename, "remove");
 767         }
 768         g_free(filename);
 769 }
 770
 771 gint news_post(Folder *folder, const gchar *file)
 772 {
 773         gint ok;
 774         char *contents = file_read_to_str_no_recode(file);
 775         NewsSession *session;
 776
 777         cm_return_val_if_fail(folder != NULL, -1);
 778         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 779         cm_return_val_if_fail(contents != NULL, -1);
 780
 781         session = news_session_get(folder);
 782         if (!session)  {
 783                 g_free(contents);
 784                 return -1;
 785         }
 786
 787         ok = nntp_threaded_post(folder, contents, strlen(contents));
 788
 789         g_free(contents);
 790
 791         if (ok == NEWSNNTP_ERROR_STREAM) {
 792                 session_destroy(SESSION(session));
 793                 REMOTE_FOLDER(folder)->session = NULL;
 794         }
 795
 796         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 797 }
 798
 799 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 800 {
 801         size_t len;
 802         char *result = NULL;
 803         int r;
 804
 805         r = nntp_threaded_article(folder, num, &result, &len);
 806
 807         if (r == NEWSNNTP_NO_ERROR) {
 808                 if (str_write_to_file(result, filename) < 0) {
 809                         mmap_string_unref(result);
 810                         return -1;
 811                 }
 812                 mmap_string_unref(result);
 813         }
 814
 815         return r;
 816 }
 817
 818 /**
 819  * news_select_group:
 820  * @session: Active NNTP session.
 821  * @group: Newsgroup name.
 822  * @num: Estimated number of articles.
 823  * @first: First article number.
 824  * @last: Last article number.
 825  *
 826  * Select newsgroup @group with the GROUP command if it is not already
 827  * selected in @session, or article numbers need to be returned.
 828  *
 829  * Return value: NNTP result code.
 830  **/
 831 static gint news_select_group(Folder *folder, const gchar *group,
 832                               gint *num, gint *first, gint *last)
 833 {
 834         gint ok;
 835         gint num_, first_, last_;
 836         struct newsnntp_group_info *info = NULL;
 837         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 838
 839         cm_return_val_if_fail(session != NULL, -1);
 840
 841         if (!num || !first || !last) {
 842                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 843                         return NEWSNNTP_NO_ERROR;
 844                 num = &num_;
 845                 first = &first_;
 846                 last = &last_;
 847         }
 848
 849         g_free(session->group);
 850         session->group = NULL;
 851
 852         ok = nntp_threaded_group(folder, group, &info);
 853
 854         if (ok == NEWSNNTP_NO_ERROR && info) {
 855                 session->group = g_strdup(group);
 856                 *num = info->grp_first;
 857                 *first = info->grp_first;
 858                 *last = info->grp_last;
 859                 newsnntp_group_free(info);
 860         } else {
 861                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 862         }
 863         return ok;
 864 }
 865
 866 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 867 {
 868         MsgInfo *msginfo;
 869
 870         /* set MsgInfo */
 871         msginfo = procmsg_msginfo_new();
 872         msginfo->msgnum = item->ovr_article;
 873         msginfo->size = item->ovr_size;
 874
 875         msginfo->date = g_strdup(item->ovr_date);
 876         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 877
 878         msginfo->from = conv_unmime_header(item->ovr_author, NULL, TRUE);
 879         msginfo->fromname = procheader_get_fromname(msginfo->from);
 880
 881         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL, TRUE);
 882
 883         remove_return(msginfo->from);
 884         remove_return(msginfo->fromname);
 885         remove_return(msginfo->subject);
 886
 887         if (item->ovr_message_id) {
 888                 gchar *tmp = g_strdup(item->ovr_message_id);
 889                 extract_parenthesis(tmp, '<', '>');
 890                 remove_space(tmp);
 891                 if (*tmp != '\0')
 892                         msginfo->msgid = g_strdup(tmp);
 893                 g_free(tmp);
 894         }
 895
 896         /* FIXME: this is a quick fix; references' meaning was changed
 897          * into having the actual list of references in the References: header.
 898          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 899          * their things properly. */
 900         if (item->ovr_references && *(item->ovr_references)) {
 901                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 902                 guint i = 0;
 903                 char *tmp;
 904                 char *p;
 905                 while (ref_tokens[i]) {
 906                         gchar *cur_ref = ref_tokens[i];
 907                         msginfo->references = references_list_append(msginfo->references,
 908                                         cur_ref);
 909                         i++;
 910                 }
 911                 g_strfreev(ref_tokens);
 912
 913                 tmp = g_strdup(item->ovr_references);
 914                 eliminate_parenthesis(tmp, '(', ')');
 915                 if ((p = strrchr(tmp, '<')) != NULL) {
 916                         extract_parenthesis(p, '<', '>');
 917                         remove_space(p);
 918                         if (*p != '\0')
 919                                 msginfo->inreplyto = g_strdup(p);
 920                 }
 921                 g_free(tmp);
 922         }
 923
 924         return msginfo;
 925 }
 926
 927 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 928 {
 929         gchar * tmp;
 930         FILE * tmpfp;
 931         gchar buf[BUFFSIZE];
 932
 933         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 934                               G_DIR_SEPARATOR, msginfo);
 935         if (tmp == NULL)
 936                 return -1;
 937
 938         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 939                 FILE_OP_ERROR(tmp, "fopen");
 940                 return -1;
 941         }
 942         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 943                 FILE_OP_ERROR(tmp, "chmod");
 944                 g_warning("can't change file mode\n");
 945         }
 946
 947         get_rfc822_date(buf, sizeof(buf));
 948         if (fprintf(tmpfp, "From: %s\r\n"
 949                        "Newsgroups: %s\r\n"
 950                        "Subject: cmsg cancel <%s>\r\n"
 951                        "Control: cancel <%s>\r\n"
 952                        "Approved: %s\r\n"
 953                        "X-Cancelled-by: %s\r\n"
 954                        "Date: %s\r\n"
 955                        "\r\n"
 956                        "removed with Claws Mail\r\n",
 957                        msginfo->from,
 958                        msginfo->newsgroups,
 959                        msginfo->msgid,
 960                        msginfo->msgid,
 961                        msginfo->from,
 962                        msginfo->from,
 963                        buf) < 0) {
 964                 FILE_OP_ERROR(tmp, "fprintf");
 965                 fclose(tmpfp);
 966                 claws_unlink(tmp);
 967                 g_free(tmp);
 968                 return -1;
 969         }
 970
 971         if (fclose(tmpfp) == EOF) {
 972                 FILE_OP_ERROR(tmp, "fclose");
 973                 claws_unlink(tmp);
 974                 g_free(tmp);
 975                 return -1;
 976         }
 977
 978         news_post(folder, tmp);
 979         claws_unlink(tmp);
 980
 981         g_free(tmp);
 982
 983         return 0;
 984 }
 985
 986 static gchar *news_folder_get_path(Folder *folder)
 987 {
 988         gchar *folder_path;
 989
 990         cm_return_val_if_fail(folder->account != NULL, NULL);
 991
 992         folder_path = g_strconcat(get_news_cache_dir(),
 993                                   G_DIR_SEPARATOR_S,
 994                                   folder->account->nntp_server,
 995                                   NULL);
 996         return folder_path;
 997 }
 998
 999 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
1000 {
1001         gchar *folder_path, *path;
1002
1003         cm_return_val_if_fail(folder != NULL, NULL);
1004         cm_return_val_if_fail(item != NULL, NULL);
1005         folder_path = news_folder_get_path(folder);
1006
1007         cm_return_val_if_fail(folder_path != NULL, NULL);
1008         if (g_path_is_absolute(folder_path)) {
1009                 if (item->path)
1010                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
1011                                            item->path, NULL);
1012                 else
1013                         path = g_strdup(folder_path);
1014         } else {
1015                 if (item->path)
1016                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1017                                            folder_path, G_DIR_SEPARATOR_S,
1018                                            item->path, NULL);
1019                 else
1020                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1021                                            folder_path, NULL);
1022         }
1023         g_free(folder_path);
1024 #ifdef G_OS_WIN32
1025         while (strchr(path, '/'))
1026                 *strchr(path, '/') = '\\';
1027 #endif
1028         return path;
1029 }
1030
1031 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
1032 {
1033         NewsSession *session;
1034         gint i, ok, num, first, last, nummsgs = 0;
1035         gchar *dir;
1036
1037         cm_return_val_if_fail(item != NULL, -1);
1038         cm_return_val_if_fail(item->folder != NULL, -1);
1039         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
1040
1041         session = news_session_get(folder);
1042         cm_return_val_if_fail(session != NULL, -1);
1043
1044         *old_uids_valid = TRUE;
1045
1046         news_folder_lock(NEWS_FOLDER(item->folder));
1047
1048         ok = news_select_group(folder, item->path, &num, &first, &last);
1049         if (ok != NEWSNNTP_NO_ERROR) {
1050                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1051                 news_folder_unlock(NEWS_FOLDER(item->folder));
1052                 return -1;
1053         }
1054
1055         dir = news_folder_get_path(folder);
1056         if (num <= 0)
1057                 remove_all_numbered_files(dir);
1058         else if (last < first)
1059                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
1060                             first, last);
1061         else {
1062                 for (i = first; i <= last; i++) {
1063                         *msgnum_list = g_slist_prepend(*msgnum_list,
1064                                                        GINT_TO_POINTER(i));
1065                         nummsgs++;
1066                 }
1067                 debug_print("removing old messages from %d to %d in %s\n",
1068                             first, last, dir);
1069                 remove_numbered_files(dir, 1, first - 1);
1070         }
1071         g_free(dir);
1072         news_folder_unlock(NEWS_FOLDER(item->folder));
1073         return nummsgs;
1074 }
1075
1076 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1077 {
1078         msginfo->flags.tmp_flags = 0;
1079         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1080                 if (item->folder->newsart &&
1081                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1082                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1083
1084                 } else {
1085                         if (!item->folder->newsart)
1086                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1087                         g_hash_table_insert(item->folder->newsart,
1088                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1089                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1090                 }
1091         } else {
1092                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1093         }
1094 }
1095
1096 static void news_get_extra_fields(NewsSession *session, FolderItem *item, GSList *msglist)
1097 {
1098         MsgInfo *msginfo = NULL;
1099         gint ok;
1100         GSList *cur;
1101         clist *hdrlist = NULL;
1102         clistiter *hdr;
1103         gint first = -1, last = -1;
1104         GHashTable *hash_table;
1105
1106         cm_return_if_fail(session != NULL);
1107         cm_return_if_fail(item != NULL);
1108         cm_return_if_fail(item->folder != NULL);
1109         cm_return_if_fail(FOLDER_CLASS(item->folder) == &news_class);
1110
1111         news_folder_lock(NEWS_FOLDER(item->folder));
1112
1113         hash_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1114
1115         for (cur = msglist; cur; cur = cur->next) {
1116                 msginfo = (MsgInfo *)cur->data;
1117                 if (first == -1 || msginfo->msgnum < first)
1118                         first = msginfo->msgnum;
1119                 if (last == -1 || msginfo->msgnum > last)
1120                         last = msginfo->msgnum;
1121                 g_hash_table_insert(hash_table,
1122                                 GINT_TO_POINTER(msginfo->msgnum), msginfo);
1123         }
1124
1125 /* Newsgroups */
1126         ok = nntp_threaded_xhdr(item->folder, "newsgroups", first, last, &hdrlist);
1127
1128         if (ok != NEWSNNTP_NO_ERROR) {
1129                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1130                 if (ok == NEWSNNTP_ERROR_STREAM) {
1131                         session_destroy(SESSION(session));
1132                         REMOTE_FOLDER(item->folder)->session = NULL;
1133                 }
1134                 news_folder_unlock(NEWS_FOLDER(item->folder));
1135                 return;
1136         }
1137
1138         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1139                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1140                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1141                 if (msginfo) {
1142                         if (msginfo->newsgroups)
1143                                 g_free(msginfo->newsgroups);
1144                         msginfo->newsgroups = g_strdup(hdrval->hdr_value);
1145                 }
1146         }
1147         newsnntp_xhdr_free(hdrlist);
1148
1149 /* To */
1150         ok = nntp_threaded_xhdr(item->folder, "to", first, last, &hdrlist);
1151
1152         if (ok != NEWSNNTP_NO_ERROR) {
1153                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1154                 if (ok == NEWSNNTP_ERROR_STREAM) {
1155                         session_destroy(SESSION(session));
1156                         REMOTE_FOLDER(item->folder)->session = NULL;
1157                 }
1158                 news_folder_unlock(NEWS_FOLDER(item->folder));
1159                 return;
1160         }
1161
1162         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1163                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1164                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1165                 if (msginfo) {
1166                         if (msginfo->to)
1167                                 g_free(msginfo->to);
1168                         msginfo->to = g_strdup(hdrval->hdr_value);
1169                 }
1170         }
1171         newsnntp_xhdr_free(hdrlist);
1172
1173 /* Cc */
1174         ok = nntp_threaded_xhdr(item->folder, "cc", first, last, &hdrlist);
1175
1176         if (ok != NEWSNNTP_NO_ERROR) {
1177                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1178                 if (ok == NEWSNNTP_ERROR_STREAM) {
1179                         session_destroy(SESSION(session));
1180                         REMOTE_FOLDER(item->folder)->session = NULL;
1181                 }
1182                 news_folder_unlock(NEWS_FOLDER(item->folder));
1183                 return;
1184         }
1185
1186         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1187                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1188                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1189                 if (msginfo) {
1190                         if (msginfo->cc)
1191                                 g_free(msginfo->cc);
1192                         msginfo->cc = g_strdup(hdrval->hdr_value);
1193                 }
1194         }
1195         newsnntp_xhdr_free(hdrlist);
1196
1197
1198         g_hash_table_destroy(hash_table);
1199         news_folder_unlock(NEWS_FOLDER(item->folder));
1200 }
1201
1202 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1203 {
1204         GSList *newlist = NULL;
1205         GSList *llast = NULL;
1206         MsgInfo *msginfo;
1207         gint ok;
1208         clist *msglist = NULL;
1209         clistiter *cur;
1210         cm_return_val_if_fail(session != NULL, NULL);
1211         cm_return_val_if_fail(item != NULL, NULL);
1212
1213         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1214                     begin, end, item->path);
1215
1216         news_folder_lock(NEWS_FOLDER(item->folder));
1217
1218         ok = news_select_group(item->folder, item->path, NULL, NULL, NULL);
1219         if (ok != NEWSNNTP_NO_ERROR) {
1220                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1221                 news_folder_unlock(NEWS_FOLDER(item->folder));
1222                 return NULL;
1223         }
1224
1225         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1226
1227         if (ok != NEWSNNTP_NO_ERROR) {
1228                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1229                 if (ok == NEWSNNTP_ERROR_STREAM) {
1230                         session_destroy(SESSION(session));
1231                         REMOTE_FOLDER(item->folder)->session = NULL;
1232                 }
1233                 news_folder_unlock(NEWS_FOLDER(item->folder));
1234                 return NULL;
1235         }
1236
1237         if (msglist) {
1238                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1239                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1240                         msginfo = news_parse_xover(ritem);
1241
1242                         if (!msginfo) {
1243                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1244                                 continue;
1245                         }
1246
1247                         msginfo->folder = item;
1248                         news_set_msg_flags(item, msginfo);
1249                         msginfo->flags.tmp_flags |= MSG_NEWS;
1250
1251                         if (!newlist)
1252                                 llast = newlist = g_slist_append(newlist, msginfo);
1253                         else {
1254                                 llast = g_slist_append(llast, msginfo);
1255                                 llast = llast->next;
1256                         }
1257                 }
1258                 newsnntp_xover_resp_list_free(msglist);
1259         }
1260
1261         news_folder_unlock(NEWS_FOLDER(item->folder));
1262
1263         session_set_access_time(SESSION(session));
1264
1265         news_get_extra_fields(session, item, newlist);
1266
1267         return newlist;
1268 }
1269
1270 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1271 {
1272         GSList *msglist = NULL;
1273         NewsSession *session;
1274         MsgInfo *msginfo = NULL;
1275
1276         session = news_session_get(folder);
1277         cm_return_val_if_fail(session != NULL, NULL);
1278         cm_return_val_if_fail(item != NULL, NULL);
1279         cm_return_val_if_fail(item->folder != NULL, NULL);
1280         cm_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1281
1282         msglist = news_get_msginfos_for_range(session, item, num, num);
1283
1284         if (msglist)
1285                 msginfo = msglist->data;
1286
1287         g_slist_free(msglist);
1288
1289         return msginfo;
1290 }
1291
1292 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1293 {
1294         NewsSession *session;
1295         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1296         guint first, last, next;
1297
1298         cm_return_val_if_fail(folder != NULL, NULL);
1299         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1300         cm_return_val_if_fail(msgnum_list != NULL, NULL);
1301         cm_return_val_if_fail(item != NULL, NULL);
1302
1303         session = news_session_get(folder);
1304         cm_return_val_if_fail(session != NULL, NULL);
1305
1306         tmp_msgnum_list = g_slist_copy(msgnum_list);
1307         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1308
1309         progressindicator_start(PROGRESS_TYPE_NETWORK);
1310
1311         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1312         last = first;
1313
1314         news_folder_lock(NEWS_FOLDER(item->folder));
1315
1316         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1317                 next = GPOINTER_TO_INT(elem->data);
1318                 if(next != (last + 1)) {
1319                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1320                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1321                         first = next;
1322                 }
1323                 last = next;
1324         }
1325
1326         news_folder_unlock(NEWS_FOLDER(item->folder));
1327
1328         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1329         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1330
1331         g_slist_free(tmp_msgnum_list);
1332
1333         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1334
1335         return msginfo_list;
1336 }
1337
1338 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1339 {
1340         return TRUE;
1341 }
1342
1343 void news_synchronise(FolderItem *item, gint days)
1344 {
1345         news_gtk_synchronise(item, days);
1346 }
1347
1348 static gint news_rename_folder(Folder *folder, FolderItem *item,
1349                                 const gchar *name)
1350 {
1351         gchar *path;
1352
1353         cm_return_val_if_fail(folder != NULL, -1);
1354         cm_return_val_if_fail(item != NULL, -1);
1355         cm_return_val_if_fail(item->path != NULL, -1);
1356         cm_return_val_if_fail(name != NULL, -1);
1357
1358         path = folder_item_get_path(item);
1359         if (!is_dir_exist(path))
1360                 make_dir_hier(path);
1361
1362         g_free(item->name);
1363         item->name = g_strdup(name);
1364
1365         return 0;
1366 }
1367
1368 static gint news_remove_folder(Folder *folder, FolderItem *item)
1369 {
1370         gchar *path;
1371
1372         cm_return_val_if_fail(folder != NULL, -1);
1373         cm_return_val_if_fail(item != NULL, -1);
1374         cm_return_val_if_fail(item->path != NULL, -1);
1375
1376         path = folder_item_get_path(item);
1377         if (remove_dir_recursive(path) < 0) {
1378                 g_warning("can't remove directory `%s'\n", path);
1379                 g_free(path);
1380                 return -1;
1381         }
1382
1383         g_free(path);
1384         folder_item_remove(item);
1385         return 0;
1386 }
1387
1388 void nntp_disconnect_all(gboolean have_connectivity)
1389 {
1390         GList *list;
1391         gboolean short_timeout;
1392 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1393         GError *error;
1394 #endif
1395
1396 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1397         error = NULL;
1398         short_timeout = !networkmanager_is_online(&error);
1399         if(error) {
1400                 short_timeout = TRUE;
1401                 g_error_free(error);
1402         }
1403 #else
1404         short_timeout = TRUE;
1405 #endif
1406
1407         if(short_timeout)
1408                 nntp_main_set_timeout(1);
1409
1410         for (list = account_get_list(); list != NULL; list = list->next) {
1411                 PrefsAccount *account = list->data;
1412                 if (account->protocol == A_NNTP) {
1413                         RemoteFolder *folder = (RemoteFolder *)account->folder;
1414                         if (folder && folder->session) {
1415                                 NewsSession *session = (NewsSession *)folder->session;
1416                                 if (have_connectivity)
1417                                         nntp_threaded_disconnect(FOLDER(folder));
1418                                 SESSION(session)->state = SESSION_DISCONNECTED;
1419                                 SESSION(session)->sock = NULL;
1420                                 session_destroy(SESSION(session));
1421                                 folder->session = NULL;
1422                         }
1423                 }
1424         }
1425
1426         if(short_timeout)
1427                 nntp_main_set_timeout(prefs_common.io_timeout_secs);
1428 }
1429
1430 #else
1431 #include <glib.h>
1432 #include <glib/gi18n.h>
1433 #include <gtk/gtk.h>
1434 #include "folder.h"
1435 #include "alertpanel.h"
1436
1437 static FolderClass news_class;
1438
1439 static void warn_etpan(void)
1440 {
1441         static gboolean missing_news_warning = TRUE;
1442         if (missing_news_warning) {
1443                 missing_news_warning = FALSE;
1444                 alertpanel_error(
1445                         _("You have one or more News accounts "
1446                           "defined. However this version of "
1447                           "Claws Mail has been built without "
1448                           "News support; your News account(s) are "
1449                           "disabled.\n\n"
1450                           "You probably need to "
1451                           "install libetpan and recompile "
1452                           "Claws Mail."));
1453         }
1454 }
1455 static Folder *news_folder_new(const gchar *name, const gchar *path)
1456 {
1457         warn_etpan();
1458         return NULL;
1459 }
1460 void news_group_list_free(GSList *group_list)
1461 {
1462         warn_etpan();
1463 }
1464 void news_remove_group_list_cache(Folder *folder)
1465 {
1466         warn_etpan();
1467 }
1468 int news_folder_locked(Folder *folder)
1469 {
1470         warn_etpan();
1471         return 0;
1472 }
1473 gint news_post(Folder *folder, const gchar *file)
1474 {
1475         warn_etpan();
1476         return -1;
1477 }
1478
1479 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1480 {
1481         warn_etpan();
1482         return -1;
1483 }
1484
1485 GSList *news_get_group_list(Folder *folder)
1486 {
1487         warn_etpan();
1488         return NULL;
1489 }
1490
1491
1492 FolderClass *news_get_class(void)
1493 {
1494         if (news_class.idstr == NULL) {
1495                 news_class.type = F_NEWS;
1496                 news_class.idstr = "news";
1497                 news_class.uistr = "News";
1498
1499                 /* Folder functions */
1500                 news_class.new_folder = news_folder_new;
1501         };
1502
1503         return &news_class;
1504 }
1505
1506 void nntp_disconnect_all(gboolean have_connectivity)
1507 {
1508 }
1509
1510 #endif