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
  64 #define NNTP_PORT       119
  65 #ifdef USE_GNUTLS
  66 #define NNTPS_PORT      563
  67 #endif
  68
  69 typedef struct _NewsFolder      NewsFolder;
  70 typedef struct _NewsSession     NewsSession;
  71
  72 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  73 #define NEWS_SESSION(obj)       ((NewsSession *)obj)
  74
  75 struct _NewsFolder
  76 {
  77         RemoteFolder rfolder;
  78
  79         gboolean use_auth;
  80         gboolean lock_count;
  81         guint refcnt;
  82 };
  83
  84 struct _NewsSession
  85 {
  86         Session session;
  87         Folder *folder;
  88         gchar *group;
  89 };
  90
  91 static void news_folder_init(Folder *folder, const gchar *name,
  92                              const gchar *path);
  93
  94 static Folder   *news_folder_new        (const gchar    *name,
  95                                          const gchar    *folder);
  96 static void      news_folder_destroy    (Folder         *folder);
  97
  98 static gchar *news_fetch_msg            (Folder         *folder,
  99                                          FolderItem     *item,
 100                                          gint            num);
 101 static void news_remove_cached_msg      (Folder         *folder,
 102                                          FolderItem     *item,
 103                                          MsgInfo        *msginfo);
 104 #ifdef USE_GNUTLS
 105 static Session *news_session_new         (Folder        *folder,
 106                                           const gchar   *server,
 107                                           gushort        port,
 108                                           const gchar   *userid,
 109                                           const gchar   *passwd,
 110                                           SSLType        ssl_type);
 111 #else
 112 static Session *news_session_new         (Folder        *folder,
 113                                           const gchar   *server,
 114                                           gushort        port,
 115                                           const gchar   *userid,
 116                                           const gchar   *passwd);
 117 #endif
 118
 119 static gint news_get_article             (Folder        *folder,
 120                                           gint           num,
 121                                           gchar         *filename);
 122
 123 static gint news_select_group            (Folder        *folder,
 124                                           const gchar   *group,
 125                                           gint          *num,
 126                                           gint          *first,
 127                                           gint          *last);
 128 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 129 static gint news_get_num_list                    (Folder        *folder,
 130                                           FolderItem    *item,
 131                                           GSList       **list,
 132                                           gboolean      *old_uids_valid);
 133 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 134                                           FolderItem    *item,
 135                                           gint           num);
 136 static GSList *news_get_msginfos                 (Folder        *folder,
 137                                           FolderItem    *item,
 138                                           GSList        *msgnum_list);
 139 static gboolean news_scan_required               (Folder        *folder,
 140                                           FolderItem    *item);
 141
 142 static gchar *news_folder_get_path       (Folder        *folder);
 143 static gchar *news_item_get_path                 (Folder        *folder,
 144                                           FolderItem    *item);
 145 static void news_synchronise             (FolderItem    *item, gint days);
 146 static int news_remove_msg               (Folder        *folder,
 147                                           FolderItem    *item,
 148                                           gint           msgnum);
 149 static gint news_rename_folder           (Folder *folder,
 150                                           FolderItem *item,
 151                                           const gchar *name);
 152 static gint news_remove_folder           (Folder        *folder,
 153                                           FolderItem    *item);
 154 static FolderClass news_class;
 155
 156 FolderClass *news_get_class(void)
 157 {
 158         if (news_class.idstr == NULL) {
 159                 news_class.type = F_NEWS;
 160                 news_class.idstr = "news";
 161                 news_class.uistr = "News";
 162                 news_class.supports_server_search = FALSE;
 163
 164                 /* Folder functions */
 165                 news_class.new_folder = news_folder_new;
 166                 news_class.destroy_folder = news_folder_destroy;
 167
 168                 /* FolderItem functions */
 169                 news_class.item_get_path = news_item_get_path;
 170                 news_class.get_num_list = news_get_num_list;
 171                 news_class.scan_required = news_scan_required;
 172                 news_class.rename_folder = news_rename_folder;
 173                 news_class.remove_folder = news_remove_folder;
 174
 175                 /* Message functions */
 176                 news_class.get_msginfo = news_get_msginfo;
 177                 news_class.get_msginfos = news_get_msginfos;
 178                 news_class.fetch_msg = news_fetch_msg;
 179                 news_class.synchronise = news_synchronise;
 180                 news_class.search_msgs = folder_item_search_msgs_local;
 181                 news_class.remove_msg = news_remove_msg;
 182                 news_class.remove_cached_msg = news_remove_cached_msg;
 183         };
 184
 185         return &news_class;
 186 }
 187
 188 guint nntp_folder_get_refcnt(Folder *folder)
 189 {
 190         return ((NewsFolder *)folder)->refcnt;
 191 }
 192
 193 void nntp_folder_ref(Folder *folder)
 194 {
 195         ((NewsFolder *)folder)->refcnt++;
 196 }
 197
 198 void nntp_folder_unref(Folder *folder)
 199 {
 200         if (((NewsFolder *)folder)->refcnt > 0)
 201                 ((NewsFolder *)folder)->refcnt--;
 202 }
 203
 204 static int news_remove_msg               (Folder        *folder,
 205                                           FolderItem    *item,
 206                                           gint           msgnum)
 207 {
 208         gchar *path, *filename;
 209
 210         cm_return_val_if_fail(folder != NULL, -1);
 211         cm_return_val_if_fail(item != NULL, -1);
 212
 213         path = folder_item_get_path(item);
 214         if (!is_dir_exist(path))
 215                 make_dir_hier(path);
 216
 217         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 218         g_free(path);
 219         claws_unlink(filename);
 220         g_free(filename);
 221         return 0;
 222 }
 223
 224 static void news_folder_lock(NewsFolder *folder)
 225 {
 226         folder->lock_count++;
 227 }
 228
 229 static void news_folder_unlock(NewsFolder *folder)
 230 {
 231         if (folder->lock_count > 0)
 232                 folder->lock_count--;
 233 }
 234
 235 int news_folder_locked(Folder *folder)
 236 {
 237         if (folder == NULL)
 238                 return 0;
 239
 240         return NEWS_FOLDER(folder)->lock_count;
 241 }
 242
 243 static Folder *news_folder_new(const gchar *name, const gchar *path)
 244 {
 245         Folder *folder;
 246
 247         folder = (Folder *)g_new0(NewsFolder, 1);
 248         folder->klass = &news_class;
 249         news_folder_init(folder, name, path);
 250
 251         return folder;
 252 }
 253
 254 static void news_folder_destroy(Folder *folder)
 255 {
 256         gchar *dir;
 257
 258         while (nntp_folder_get_refcnt(folder) > 0)
 259                 gtk_main_iteration();
 260
 261         dir = news_folder_get_path(folder);
 262         if (is_dir_exist(dir))
 263                 remove_dir_recursive(dir);
 264         g_free(dir);
 265
 266         nntp_done(folder);
 267         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 268 }
 269
 270 static void news_folder_init(Folder *folder, const gchar *name,
 271                              const gchar *path)
 272 {
 273         folder_remote_folder_init(folder, name, path);
 274 }
 275
 276 static void news_session_destroy(Session *session)
 277 {
 278         NewsSession *news_session = NEWS_SESSION(session);
 279
 280         cm_return_if_fail(session != NULL);
 281
 282         if (news_session->group)
 283                 g_free(news_session->group);
 284 }
 285
 286 static gboolean nntp_ping(gpointer data)
 287 {
 288         Session *session = (Session *)data;
 289         NewsSession *news_session = NEWS_SESSION(session);
 290         int r;
 291         struct tm lt;
 292
 293         if (session->state != SESSION_READY || news_folder_locked(news_session->folder))
 294                 return FALSE;
 295
 296         news_folder_lock(NEWS_FOLDER(news_session->folder));
 297
 298         if ((r = nntp_threaded_date(news_session->folder, &lt)) != NEWSNNTP_NO_ERROR) {
 299                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 300                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 301                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 302                               " disconnected.\n"),
 303                             news_session->folder->account->nntp_server,
 304                             news_session->folder->account->set_nntpport ?
 305                             news_session->folder->account->nntpport : NNTP_PORT);
 306                         REMOTE_FOLDER(news_session->folder)->session = NULL;
 307                         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 308                         session->state = SESSION_DISCONNECTED;
 309                         session->sock = NULL;
 310                         session_destroy(session);
 311                         return FALSE;
 312                 }
 313         }
 314
 315         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 316         session_set_access_time(session);
 317         return TRUE;
 318 }
 319
 320
 321 #ifdef USE_GNUTLS
 322 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 323                                  const gchar *userid, const gchar *passwd,
 324                                  SSLType ssl_type)
 325 #else
 326 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 327                                  const gchar *userid, const gchar *passwd)
 328 #endif
 329 {
 330         NewsSession *session;
 331         int r = 0;
 332         cm_return_val_if_fail(server != NULL, NULL);
 333
 334         log_message(LOG_PROTOCOL, _("Account '%s': Connecting to NNTP server: %s:%d...\n"),
 335                                     folder->account->account_name, server, port);
 336
 337         session = g_new0(NewsSession, 1);
 338         session_init(SESSION(session), folder->account, FALSE);
 339         SESSION(session)->type             = SESSION_NEWS;
 340         SESSION(session)->server           = g_strdup(server);
 341         SESSION(session)->port             = port;
 342         SESSION(session)->sock             = NULL;
 343         SESSION(session)->destroy          = news_session_destroy;
 344
 345         nntp_init(folder);
 346
 347 #ifdef USE_GNUTLS
 348         if (ssl_type != SSL_NONE)
 349                 r = nntp_threaded_connect_ssl(folder, server, port);
 350         else
 351 #endif
 352                 r = nntp_threaded_connect(folder, server, port);
 353
 354         if (r != NEWSNNTP_NO_ERROR) {
 355                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d...\n"), server, port);
 356                 if (session != NULL)
 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         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 380                 userid = ac->userid;
 381                 if (ac->passwd && ac->passwd[0])
 382                         passwd = g_strdup(ac->passwd);
 383                 else
 384                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 385                                                                   userid,
 386                                                                   &(ac->session_passwd));
 387         }
 388
 389 #ifdef USE_GNUTLS
 390         port = ac->set_nntpport ? ac->nntpport
 391                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 392         session = news_session_new(folder, ac->nntp_server, port, userid, passwd,
 393                                    ac->ssl_nntp);
 394 #else
 395         if (ac->ssl_nntp != SSL_NONE) {
 396                 if (alertpanel_full(_("Insecure connection"),
 397                         _("This connection is configured to be secured "
 398                           "using SSL, but SSL is not available in this "
 399                           "build of Claws Mail. \n\n"
 400                           "Do you want to continue connecting to this "
 401                           "server? The communication would not be "
 402                           "secure."),
 403                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 404                           NULL, FALSE, NULL, ALERT_WARNING,
 405                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 406                         return NULL;
 407         }
 408         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 409         session = news_session_new(folder, ac->nntp_server, port, userid, passwd);
 410 #endif
 411
 412         if (session != NULL)
 413                 r = nntp_threaded_mode_reader(folder);
 414         else
 415                 r = NEWSNNTP_ERROR_CONNECTION_REFUSED;
 416
 417         if (r != NEWSNNTP_NO_ERROR) {
 418             if (r == NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 419                 /*
 420                    FIX ME when libetpan implements 480 to indicate authorization
 421                    is required to use this capability. Libetpan treats a 480 as a
 422                    381 which is clearly wrong.
 423                    RFC 4643 section 2.
 424                    Response code 480
 425                    Generic response
 426                    Meaning: command unavailable until the client
 427                    has authenticated itself.
 428                 */
 429                 /* if the server does not advertise the capability MODE-READER,
 430                    we normally should not send MODE READER. However this can't
 431                    hurt: a transit-only server returns 502 and closes the cnx.
 432                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 433                 */
 434                 log_error(LOG_PROTOCOL, _("Libetpan does not support return code 480 "
 435                 "so for now we choose to continue\n"));
 436             }
 437             else if (r == NEWSNNTP_ERROR_UNEXPECTED_RESPONSE) {
 438                 /* if the server does not advertise the capability MODE-READER,
 439                    we normally should not send MODE READER. However this can't
 440                    hurt: a transit-only server returns 502 and closes the cnx.
 441                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 442                 */
 443                 log_error(LOG_PROTOCOL, _("Mode reader failed, continuing nevertheless\n"));
 444             }
 445             else {
 446                 /* An error state bail out */
 447                 log_error(LOG_PROTOCOL, _("Error creating session with %s:%d\n"), ac->nntp_server, port);
 448                 if (session != NULL)
 449                         session_destroy(SESSION(session));
 450                 g_free(passwd);
 451                 if (ac->session_passwd) {
 452                         g_free(ac->session_passwd);
 453                         ac->session_passwd = NULL;
 454                 }
 455                 return NULL;
 456             }
 457         }
 458
 459         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 460                 if (nntp_threaded_login(folder, userid, passwd) !=
 461                         NEWSNNTP_NO_ERROR) {
 462                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d...\n"), ac->nntp_server, port);
 463                         session_destroy(SESSION(session));
 464                         g_free(passwd);
 465                         if (ac->session_passwd) {
 466                                 g_free(ac->session_passwd);
 467                                 ac->session_passwd = NULL;
 468                         }
 469                         return NULL;
 470                 }
 471         }
 472         g_free(passwd);
 473
 474         return session;
 475 }
 476
 477 static NewsSession *news_session_get(Folder *folder)
 478 {
 479         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 480
 481         cm_return_val_if_fail(folder != NULL, NULL);
 482         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 483         cm_return_val_if_fail(folder->account != NULL, NULL);
 484
 485         if (prefs_common.work_offline &&
 486             !inc_offline_should_override(FALSE,
 487                 _("Claws Mail needs network access in order "
 488                   "to access the News server."))) {
 489                 return NULL;
 490         }
 491
 492         if (!rfolder->session) {
 493                 rfolder->session = news_session_new_for_folder(folder);
 494                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 495                 return NEWS_SESSION(rfolder->session);
 496         }
 497
 498         /* Handle port change (also ssl/nossl change) without needing to
 499          * restart application. */
 500         if (rfolder->session->port != folder->account->nntpport) {
 501                 session_destroy(rfolder->session);
 502                 rfolder->session = news_session_new_for_folder(folder);
 503                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 504                 goto newsession;
 505         }
 506
 507         if (time(NULL) - rfolder->session->last_access_time <
 508                 SESSION_TIMEOUT_INTERVAL) {
 509                 return NEWS_SESSION(rfolder->session);
 510         }
 511
 512         if (!nntp_ping(rfolder->session)) {
 513                 rfolder->session = news_session_new_for_folder(folder);
 514                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 515         }
 516
 517 newsession:
 518         if (rfolder->session)
 519                 session_set_access_time(rfolder->session);
 520
 521         return NEWS_SESSION(rfolder->session);
 522 }
 523
 524 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 525 {
 526         gchar *path, *filename;
 527
 528         path = folder_item_get_path(item);
 529
 530         if (!is_dir_exist(path)) {
 531                 g_free(path);
 532                 return;
 533         }
 534
 535         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 536         g_free(path);
 537
 538         if (is_file_exist(filename)) {
 539                 claws_unlink(filename);
 540         }
 541         g_free(filename);
 542 }
 543
 544 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 545 {
 546         gchar *path, *filename;
 547         NewsSession *session;
 548         gint ok;
 549
 550         cm_return_val_if_fail(folder != NULL, NULL);
 551         cm_return_val_if_fail(item != NULL, NULL);
 552
 553         path = folder_item_get_path(item);
 554         if (!is_dir_exist(path))
 555                 make_dir_hier(path);
 556         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 557         g_free(path);
 558
 559         if (is_file_exist(filename)) {
 560                 debug_print("article %d has been already cached.\n", num);
 561                 return filename;
 562         }
 563
 564         session = news_session_get(folder);
 565         if (!session) {
 566                 g_free(filename);
 567                 return NULL;
 568         }
 569
 570         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 571         if (ok != NEWSNNTP_NO_ERROR) {
 572                 if (ok == NEWSNNTP_ERROR_STREAM) {
 573                         session_destroy(SESSION(session));
 574                         REMOTE_FOLDER(folder)->session = NULL;
 575                 }
 576                 g_free(filename);
 577                 return NULL;
 578         }
 579
 580         debug_print("getting article %d...\n", num);
 581         ok = news_get_article(folder,
 582                               num, filename);
 583         if (ok != NEWSNNTP_NO_ERROR) {
 584                 g_warning("can't read article %d\n", num);
 585                 if (ok == NEWSNNTP_ERROR_STREAM) {
 586                         session_destroy(SESSION(session));
 587                         REMOTE_FOLDER(folder)->session = NULL;
 588                 }
 589                 g_free(filename);
 590                 return NULL;
 591         }
 592         GTK_EVENTS_FLUSH();
 593         return filename;
 594 }
 595
 596 static NewsGroupInfo *news_group_info_new(const gchar *name,
 597                                           gint first, gint last, gchar type)
 598 {
 599         NewsGroupInfo *ginfo;
 600
 601         ginfo = g_new(NewsGroupInfo, 1);
 602         ginfo->name = g_strdup(name);
 603         ginfo->first = first;
 604         ginfo->last = last;
 605         ginfo->type = type;
 606
 607         return ginfo;
 608 }
 609
 610 static void news_group_info_free(NewsGroupInfo *ginfo)
 611 {
 612         g_free(ginfo->name);
 613         g_free(ginfo);
 614 }
 615
 616 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 617                                     NewsGroupInfo *ginfo2)
 618 {
 619         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 620 }
 621
 622 GSList *news_get_group_list(Folder *folder)
 623 {
 624         gchar *path, *filename;
 625         FILE *fp;
 626         GSList *list = NULL;
 627         GSList *last = NULL;
 628         gchar buf[BUFFSIZE];
 629
 630         cm_return_val_if_fail(folder != NULL, NULL);
 631         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 632
 633         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 634         if (!is_dir_exist(path))
 635                 make_dir_hier(path);
 636         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 637         g_free(path);
 638
 639         if ((fp = g_fopen(filename, "rb")) == NULL) {
 640                 NewsSession *session;
 641                 gint ok;
 642                 clist *grouplist = NULL;
 643                 clistiter *cur;
 644                 fp = g_fopen(filename, "wb");
 645
 646                 if (!fp) {
 647                         g_free(filename);
 648                         return NULL;
 649                 }
 650                 session = news_session_get(folder);
 651                 if (!session) {
 652                         fclose(fp);
 653                         g_free(filename);
 654                         return NULL;
 655                 }
 656
 657                 ok = nntp_threaded_list(folder, &grouplist);
 658
 659                 if (ok != NEWSNNTP_NO_ERROR) {
 660                         if (ok == NEWSNNTP_ERROR_STREAM) {
 661                                 session_destroy(SESSION(session));
 662                                 REMOTE_FOLDER(folder)->session = NULL;
 663                         }
 664                         fclose(fp);
 665                         g_free(filename);
 666                         return NULL;
 667                 }
 668
 669                 if (grouplist) {
 670                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 671                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 672                                                                         clist_content(cur);
 673                                 if (fprintf(fp, "%s %d %d %c\n",
 674                                         info->grp_name,
 675                                         info->grp_last,
 676                                         info->grp_first,
 677                                         info->grp_type) < 0) {
 678                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 679                                         session_destroy(SESSION(session));
 680                                         REMOTE_FOLDER(folder)->session = NULL;
 681                                         fclose(fp);
 682                                         g_free(filename);
 683                                         newsnntp_list_free(grouplist);
 684                                         return NULL;
 685                                 }
 686                         }
 687                         newsnntp_list_free(grouplist);
 688                 }
 689                 if (fclose(fp) == EOF) {
 690                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 691                         session_destroy(SESSION(session));
 692                         REMOTE_FOLDER(folder)->session = NULL;
 693                         g_free(filename);
 694                         return NULL;
 695                 }
 696
 697                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 698                         FILE_OP_ERROR(filename, "fopen");
 699                         g_free(filename);
 700                         return NULL;
 701                 }
 702         }
 703
 704         while (fgets(buf, sizeof(buf), fp) != NULL) {
 705                 gchar *p = buf;
 706                 gchar *name;
 707                 gint last_num;
 708                 gint first_num;
 709                 gchar type;
 710                 NewsGroupInfo *ginfo;
 711
 712                 p = strchr(p, ' ');
 713                 if (!p) continue;
 714                 *p = '\0';
 715                 p++;
 716                 name = buf;
 717
 718                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 719                         continue;
 720
 721                 ginfo = news_group_info_new(name, first_num, last_num, type);
 722
 723                 if (!last)
 724                         last = list = g_slist_append(NULL, ginfo);
 725                 else {
 726                         last = g_slist_append(last, ginfo);
 727                         last = last->next;
 728                 }
 729         }
 730
 731         fclose(fp);
 732         g_free(filename);
 733
 734         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 735
 736         return list;
 737 }
 738
 739 void news_group_list_free(GSList *group_list)
 740 {
 741         GSList *cur;
 742
 743         if (!group_list) return;
 744
 745         for (cur = group_list; cur != NULL; cur = cur->next)
 746                 news_group_info_free((NewsGroupInfo *)cur->data);
 747         g_slist_free(group_list);
 748 }
 749
 750 void news_remove_group_list_cache(Folder *folder)
 751 {
 752         gchar *path, *filename;
 753
 754         cm_return_if_fail(folder != NULL);
 755         cm_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 756
 757         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 758         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 759         g_free(path);
 760
 761         if (is_file_exist(filename)) {
 762                 if (remove(filename) < 0)
 763                         FILE_OP_ERROR(filename, "remove");
 764         }
 765         g_free(filename);
 766 }
 767
 768 gint news_post(Folder *folder, const gchar *file)
 769 {
 770         gint ok;
 771         char *contents = file_read_to_str_no_recode(file);
 772         NewsSession *session;
 773
 774         cm_return_val_if_fail(folder != NULL, -1);
 775         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 776         cm_return_val_if_fail(contents != NULL, -1);
 777
 778         session = news_session_get(folder);
 779         if (!session)  {
 780                 g_free(contents);
 781                 return -1;
 782         }
 783
 784         ok = nntp_threaded_post(folder, contents, strlen(contents));
 785
 786         g_free(contents);
 787
 788         if (ok == NEWSNNTP_ERROR_STREAM) {
 789                 session_destroy(SESSION(session));
 790                 REMOTE_FOLDER(folder)->session = NULL;
 791         }
 792
 793         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 794 }
 795
 796 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 797 {
 798         size_t len;
 799         char *result = NULL;
 800         int r;
 801
 802         r = nntp_threaded_article(folder, num, &result, &len);
 803
 804         if (r == NEWSNNTP_NO_ERROR) {
 805                 if (str_write_to_file(result, filename) < 0) {
 806                         mmap_string_unref(result);
 807                         return -1;
 808                 }
 809                 mmap_string_unref(result);
 810         }
 811
 812         return r;
 813 }
 814
 815 /**
 816  * news_select_group:
 817  * @session: Active NNTP session.
 818  * @group: Newsgroup name.
 819  * @num: Estimated number of articles.
 820  * @first: First article number.
 821  * @last: Last article number.
 822  *
 823  * Select newsgroup @group with the GROUP command if it is not already
 824  * selected in @session, or article numbers need to be returned.
 825  *
 826  * Return value: NNTP result code.
 827  **/
 828 static gint news_select_group(Folder *folder, const gchar *group,
 829                               gint *num, gint *first, gint *last)
 830 {
 831         gint ok;
 832         gint num_, first_, last_;
 833         struct newsnntp_group_info *info = NULL;
 834         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 835
 836         cm_return_val_if_fail(session != NULL, -1);
 837
 838         if (!num || !first || !last) {
 839                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 840                         return NEWSNNTP_NO_ERROR;
 841                 num = &num_;
 842                 first = &first_;
 843                 last = &last_;
 844         }
 845
 846         g_free(session->group);
 847         session->group = NULL;
 848
 849         ok = nntp_threaded_group(folder, group, &info);
 850
 851         if (ok == NEWSNNTP_NO_ERROR && info) {
 852                 session->group = g_strdup(group);
 853                 *num = info->grp_first;
 854                 *first = info->grp_first;
 855                 *last = info->grp_last;
 856                 newsnntp_group_free(info);
 857         } else {
 858                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 859         }
 860         return ok;
 861 }
 862
 863 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 864 {
 865         MsgInfo *msginfo;
 866
 867         /* set MsgInfo */
 868         msginfo = procmsg_msginfo_new();
 869         msginfo->msgnum = item->ovr_article;
 870         msginfo->size = item->ovr_size;
 871
 872         msginfo->date = g_strdup(item->ovr_date);
 873         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 874
 875         msginfo->from = conv_unmime_header(item->ovr_author, NULL, TRUE);
 876         msginfo->fromname = procheader_get_fromname(msginfo->from);
 877
 878         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL, TRUE);
 879
 880         remove_return(msginfo->from);
 881         remove_return(msginfo->fromname);
 882         remove_return(msginfo->subject);
 883
 884         if (item->ovr_message_id) {
 885                 gchar *tmp = g_strdup(item->ovr_message_id);
 886                 extract_parenthesis(tmp, '<', '>');
 887                 remove_space(tmp);
 888                 if (*tmp != '\0')
 889                         msginfo->msgid = g_strdup(tmp);
 890                 g_free(tmp);
 891         }
 892
 893         /* FIXME: this is a quick fix; references' meaning was changed
 894          * into having the actual list of references in the References: header.
 895          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 896          * their things properly. */
 897         if (item->ovr_references && *(item->ovr_references)) {
 898                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 899                 guint i = 0;
 900                 char *tmp;
 901                 char *p;
 902                 while (ref_tokens[i]) {
 903                         gchar *cur_ref = ref_tokens[i];
 904                         msginfo->references = references_list_append(msginfo->references,
 905                                         cur_ref);
 906                         i++;
 907                 }
 908                 g_strfreev(ref_tokens);
 909
 910                 tmp = g_strdup(item->ovr_references);
 911                 eliminate_parenthesis(tmp, '(', ')');
 912                 if ((p = strrchr(tmp, '<')) != NULL) {
 913                         extract_parenthesis(p, '<', '>');
 914                         remove_space(p);
 915                         if (*p != '\0')
 916                                 msginfo->inreplyto = g_strdup(p);
 917                 }
 918                 g_free(tmp);
 919         }
 920
 921         return msginfo;
 922 }
 923
 924 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 925 {
 926         gchar * tmp;
 927         FILE * tmpfp;
 928         gchar buf[BUFFSIZE];
 929
 930         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 931                               G_DIR_SEPARATOR, msginfo);
 932         if (tmp == NULL)
 933                 return -1;
 934
 935         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 936                 FILE_OP_ERROR(tmp, "fopen");
 937                 return -1;
 938         }
 939         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 940                 FILE_OP_ERROR(tmp, "chmod");
 941                 g_warning("can't change file mode\n");
 942         }
 943
 944         get_rfc822_date(buf, sizeof(buf));
 945         if (fprintf(tmpfp, "From: %s\r\n"
 946                        "Newsgroups: %s\r\n"
 947                        "Subject: cmsg cancel <%s>\r\n"
 948                        "Control: cancel <%s>\r\n"
 949                        "Approved: %s\r\n"
 950                        "X-Cancelled-by: %s\r\n"
 951                        "Date: %s\r\n"
 952                        "\r\n"
 953                        "removed with Claws Mail\r\n",
 954                        msginfo->from,
 955                        msginfo->newsgroups,
 956                        msginfo->msgid,
 957                        msginfo->msgid,
 958                        msginfo->from,
 959                        msginfo->from,
 960                        buf) < 0) {
 961                 FILE_OP_ERROR(tmp, "fprintf");
 962                 fclose(tmpfp);
 963                 claws_unlink(tmp);
 964                 g_free(tmp);
 965                 return -1;
 966         }
 967
 968         if (fclose(tmpfp) == EOF) {
 969                 FILE_OP_ERROR(tmp, "fclose");
 970                 claws_unlink(tmp);
 971                 g_free(tmp);
 972                 return -1;
 973         }
 974
 975         news_post(folder, tmp);
 976         remove(tmp);
 977
 978         g_free(tmp);
 979
 980         return 0;
 981 }
 982
 983 static gchar *news_folder_get_path(Folder *folder)
 984 {
 985         gchar *folder_path;
 986
 987         cm_return_val_if_fail(folder->account != NULL, NULL);
 988
 989         folder_path = g_strconcat(get_news_cache_dir(),
 990                                   G_DIR_SEPARATOR_S,
 991                                   folder->account->nntp_server,
 992                                   NULL);
 993         return folder_path;
 994 }
 995
 996 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
 997 {
 998         gchar *folder_path, *path;
 999
1000         cm_return_val_if_fail(folder != NULL, NULL);
1001         cm_return_val_if_fail(item != NULL, NULL);
1002         folder_path = news_folder_get_path(folder);
1003
1004         cm_return_val_if_fail(folder_path != NULL, NULL);
1005         if (g_path_is_absolute(folder_path)) {
1006                 if (item->path)
1007                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
1008                                            item->path, NULL);
1009                 else
1010                         path = g_strdup(folder_path);
1011         } else {
1012                 if (item->path)
1013                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1014                                            folder_path, G_DIR_SEPARATOR_S,
1015                                            item->path, NULL);
1016                 else
1017                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1018                                            folder_path, NULL);
1019         }
1020         g_free(folder_path);
1021 #ifdef G_OS_WIN32
1022         while (strchr(path, '/'))
1023                 *strchr(path, '/') = '\\';
1024 #endif
1025         return path;
1026 }
1027
1028 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
1029 {
1030         NewsSession *session;
1031         gint i, ok, num, first, last, nummsgs = 0;
1032         gchar *dir;
1033
1034         cm_return_val_if_fail(item != NULL, -1);
1035         cm_return_val_if_fail(item->folder != NULL, -1);
1036         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
1037
1038         session = news_session_get(folder);
1039         cm_return_val_if_fail(session != NULL, -1);
1040
1041         *old_uids_valid = TRUE;
1042
1043         news_folder_lock(NEWS_FOLDER(item->folder));
1044
1045         ok = news_select_group(folder, item->path, &num, &first, &last);
1046         if (ok != NEWSNNTP_NO_ERROR) {
1047                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1048                 news_folder_unlock(NEWS_FOLDER(item->folder));
1049                 return -1;
1050         }
1051
1052         dir = news_folder_get_path(folder);
1053         if (num <= 0)
1054                 remove_all_numbered_files(dir);
1055         else if (last < first)
1056                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
1057                             first, last);
1058         else {
1059                 for (i = first; i <= last; i++) {
1060                         *msgnum_list = g_slist_prepend(*msgnum_list,
1061                                                        GINT_TO_POINTER(i));
1062                         nummsgs++;
1063                 }
1064                 debug_print("removing old messages from %d to %d in %s\n",
1065                             first, last, dir);
1066                 remove_numbered_files(dir, 1, first - 1);
1067         }
1068         g_free(dir);
1069         news_folder_unlock(NEWS_FOLDER(item->folder));
1070         return nummsgs;
1071 }
1072
1073 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1074 {
1075         msginfo->flags.tmp_flags = 0;
1076         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1077                 if (item->folder->newsart &&
1078                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1079                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1080
1081                 } else {
1082                         if (!item->folder->newsart)
1083                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1084                         g_hash_table_insert(item->folder->newsart,
1085                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1086                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1087                 }
1088         } else {
1089                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1090         }
1091 }
1092
1093 static void news_get_extra_fields(NewsSession *session, FolderItem *item, GSList *msglist)
1094 {
1095         MsgInfo *msginfo = NULL;
1096         gint ok;
1097         GSList *cur;
1098         clist *hdrlist = NULL;
1099         clistiter *hdr;
1100         gint first = -1, last = -1;
1101         GHashTable *hash_table;
1102
1103         cm_return_if_fail(session != NULL);
1104         cm_return_if_fail(item != NULL);
1105         cm_return_if_fail(item->folder != NULL);
1106         cm_return_if_fail(FOLDER_CLASS(item->folder) == &news_class);
1107
1108         news_folder_lock(NEWS_FOLDER(item->folder));
1109
1110         hash_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1111
1112         for (cur = msglist; cur; cur = cur->next) {
1113                 msginfo = (MsgInfo *)cur->data;
1114                 if (first == -1 || msginfo->msgnum < first)
1115                         first = msginfo->msgnum;
1116                 if (last == -1 || msginfo->msgnum > last)
1117                         last = msginfo->msgnum;
1118                 g_hash_table_insert(hash_table,
1119                                 GINT_TO_POINTER(msginfo->msgnum), msginfo);
1120         }
1121
1122 /* Newsgroups */
1123         ok = nntp_threaded_xhdr(item->folder, "newsgroups", first, last, &hdrlist);
1124
1125         if (ok != NEWSNNTP_NO_ERROR) {
1126                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1127                 if (ok == NEWSNNTP_ERROR_STREAM) {
1128                         session_destroy(SESSION(session));
1129                         REMOTE_FOLDER(item->folder)->session = NULL;
1130                 }
1131                 news_folder_unlock(NEWS_FOLDER(item->folder));
1132                 return;
1133         }
1134
1135         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1136                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1137                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1138                 if (msginfo) {
1139                         if (msginfo->newsgroups)
1140                                 g_free(msginfo->newsgroups);
1141                         msginfo->newsgroups = g_strdup(hdrval->hdr_value);
1142                 }
1143         }
1144         newsnntp_xhdr_free(hdrlist);
1145
1146 /* To */
1147         ok = nntp_threaded_xhdr(item->folder, "to", first, last, &hdrlist);
1148
1149         if (ok != NEWSNNTP_NO_ERROR) {
1150                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1151                 if (ok == NEWSNNTP_ERROR_STREAM) {
1152                         session_destroy(SESSION(session));
1153                         REMOTE_FOLDER(item->folder)->session = NULL;
1154                 }
1155                 news_folder_unlock(NEWS_FOLDER(item->folder));
1156                 return;
1157         }
1158
1159         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1160                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1161                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1162                 if (msginfo) {
1163                         if (msginfo->to)
1164                                 g_free(msginfo->to);
1165                         msginfo->to = g_strdup(hdrval->hdr_value);
1166                 }
1167         }
1168         newsnntp_xhdr_free(hdrlist);
1169
1170 /* Cc */
1171         ok = nntp_threaded_xhdr(item->folder, "cc", first, last, &hdrlist);
1172
1173         if (ok != NEWSNNTP_NO_ERROR) {
1174                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1175                 if (ok == NEWSNNTP_ERROR_STREAM) {
1176                         session_destroy(SESSION(session));
1177                         REMOTE_FOLDER(item->folder)->session = NULL;
1178                 }
1179                 news_folder_unlock(NEWS_FOLDER(item->folder));
1180                 return;
1181         }
1182
1183         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1184                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1185                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1186                 if (msginfo) {
1187                         if (msginfo->cc)
1188                                 g_free(msginfo->cc);
1189                         msginfo->cc = g_strdup(hdrval->hdr_value);
1190                 }
1191         }
1192         newsnntp_xhdr_free(hdrlist);
1193
1194
1195         g_hash_table_destroy(hash_table);
1196         news_folder_unlock(NEWS_FOLDER(item->folder));
1197 }
1198
1199 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1200 {
1201         GSList *newlist = NULL;
1202         GSList *llast = NULL;
1203         MsgInfo *msginfo;
1204         gint ok;
1205         clist *msglist = NULL;
1206         clistiter *cur;
1207         cm_return_val_if_fail(session != NULL, NULL);
1208         cm_return_val_if_fail(item != NULL, NULL);
1209
1210         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1211                     begin, end, item->path);
1212
1213         news_folder_lock(NEWS_FOLDER(item->folder));
1214
1215         ok = news_select_group(item->folder, item->path, NULL, NULL, NULL);
1216         if (ok != NEWSNNTP_NO_ERROR) {
1217                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1218                 news_folder_unlock(NEWS_FOLDER(item->folder));
1219                 return NULL;
1220         }
1221
1222         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1223
1224         if (ok != NEWSNNTP_NO_ERROR) {
1225                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1226                 if (ok == NEWSNNTP_ERROR_STREAM) {
1227                         session_destroy(SESSION(session));
1228                         REMOTE_FOLDER(item->folder)->session = NULL;
1229                 }
1230                 news_folder_unlock(NEWS_FOLDER(item->folder));
1231                 return NULL;
1232         }
1233
1234         if (msglist) {
1235                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1236                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1237                         msginfo = news_parse_xover(ritem);
1238
1239                         if (!msginfo) {
1240                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1241                                 continue;
1242                         }
1243
1244                         msginfo->folder = item;
1245                         news_set_msg_flags(item, msginfo);
1246                         msginfo->flags.tmp_flags |= MSG_NEWS;
1247
1248                         if (!newlist)
1249                                 llast = newlist = g_slist_append(newlist, msginfo);
1250                         else {
1251                                 llast = g_slist_append(llast, msginfo);
1252                                 llast = llast->next;
1253                         }
1254                 }
1255                 newsnntp_xover_resp_list_free(msglist);
1256         }
1257
1258         news_folder_unlock(NEWS_FOLDER(item->folder));
1259
1260         session_set_access_time(SESSION(session));
1261
1262         news_get_extra_fields(session, item, newlist);
1263
1264         return newlist;
1265 }
1266
1267 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1268 {
1269         GSList *msglist = NULL;
1270         NewsSession *session;
1271         MsgInfo *msginfo = NULL;
1272
1273         session = news_session_get(folder);
1274         cm_return_val_if_fail(session != NULL, NULL);
1275         cm_return_val_if_fail(item != NULL, NULL);
1276         cm_return_val_if_fail(item->folder != NULL, NULL);
1277         cm_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1278
1279         msglist = news_get_msginfos_for_range(session, item, num, num);
1280
1281         if (msglist)
1282                 msginfo = msglist->data;
1283
1284         g_slist_free(msglist);
1285
1286         return msginfo;
1287 }
1288
1289 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1290 {
1291         NewsSession *session;
1292         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1293         guint first, last, next;
1294 /*      guint tofetch, fetched;
1295 */
1296
1297         cm_return_val_if_fail(folder != NULL, NULL);
1298         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1299         cm_return_val_if_fail(msgnum_list != NULL, NULL);
1300         cm_return_val_if_fail(item != NULL, NULL);
1301
1302         session = news_session_get(folder);
1303         cm_return_val_if_fail(session != NULL, NULL);
1304
1305         tmp_msgnum_list = g_slist_copy(msgnum_list);
1306         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1307
1308         progressindicator_start(PROGRESS_TYPE_NETWORK);
1309 /*      tofetch = g_slist_length(tmp_msgnum_list);
1310         fetched = 0;
1311 */
1312
1313         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1314         last = first;
1315
1316         news_folder_lock(NEWS_FOLDER(item->folder));
1317
1318         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1319                 next = GPOINTER_TO_INT(elem->data);
1320                 if(next != (last + 1)) {
1321 /*                      session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1322                         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1323 */
1324                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1325                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1326 /*                      fetched = last - first + 1;
1327 */
1328                         first = next;
1329                 }
1330                 last = next;
1331         }
1332
1333         news_folder_unlock(NEWS_FOLDER(item->folder));
1334
1335 /*      session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1336         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1337 */
1338         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1339         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1340
1341         g_slist_free(tmp_msgnum_list);
1342
1343         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1344
1345         return msginfo_list;
1346 }
1347
1348 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1349 {
1350         return TRUE;
1351 }
1352
1353 void news_synchronise(FolderItem *item, gint days)
1354 {
1355         news_gtk_synchronise(item, days);
1356 }
1357
1358 static gint news_rename_folder(Folder *folder, FolderItem *item,
1359                                 const gchar *name)
1360 {
1361         gchar *path;
1362
1363         cm_return_val_if_fail(folder != NULL, -1);
1364         cm_return_val_if_fail(item != NULL, -1);
1365         cm_return_val_if_fail(item->path != NULL, -1);
1366         cm_return_val_if_fail(name != NULL, -1);
1367
1368         path = folder_item_get_path(item);
1369         if (!is_dir_exist(path))
1370                 make_dir_hier(path);
1371
1372         g_free(item->name);
1373         item->name = g_strdup(name);
1374
1375         return 0;
1376 }
1377
1378 static gint news_remove_folder(Folder *folder, FolderItem *item)
1379 {
1380         gchar *path;
1381
1382         cm_return_val_if_fail(folder != NULL, -1);
1383         cm_return_val_if_fail(item != NULL, -1);
1384         cm_return_val_if_fail(item->path != NULL, -1);
1385
1386         path = folder_item_get_path(item);
1387         if (remove_dir_recursive(path) < 0) {
1388                 g_warning("can't remove directory `%s'\n", path);
1389                 g_free(path);
1390                 return -1;
1391         }
1392
1393         g_free(path);
1394         folder_item_remove(item);
1395         return 0;
1396 }
1397
1398 void nntp_disconnect_all(gboolean have_connectivity)
1399 {
1400         GList *list;
1401         gboolean short_timeout;
1402 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1403         GError *error;
1404 #endif
1405
1406 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1407         error = NULL;
1408         short_timeout = !networkmanager_is_online(&error);
1409         if(error) {
1410                 short_timeout = TRUE;
1411                 g_error_free(error);
1412         }
1413 #else
1414         short_timeout = TRUE;
1415 #endif
1416
1417         if(short_timeout)
1418                 nntp_main_set_timeout(1);
1419
1420         for (list = account_get_list(); list != NULL; list = list->next) {
1421                 PrefsAccount *account = list->data;
1422                 if (account->protocol == A_NNTP) {
1423                         RemoteFolder *folder = (RemoteFolder *)account->folder;
1424                         if (folder && folder->session) {
1425                                 NewsSession *session = (NewsSession *)folder->session;
1426                                 if (have_connectivity)
1427                                         nntp_threaded_disconnect(FOLDER(folder));
1428                                 SESSION(session)->state = SESSION_DISCONNECTED;
1429                                 SESSION(session)->sock = NULL;
1430                                 session_destroy(SESSION(session));
1431                                 folder->session = NULL;
1432                         }
1433                 }
1434         }
1435
1436         if(short_timeout)
1437                 nntp_main_set_timeout(prefs_common.io_timeout_secs);
1438 }
1439
1440 #else
1441 #include <glib.h>
1442 #include <glib/gi18n.h>
1443 #include <gtk/gtk.h>
1444 #include "folder.h"
1445 #include "alertpanel.h"
1446
1447 static FolderClass news_class;
1448
1449 static void warn_etpan(void)
1450 {
1451         static gboolean missing_news_warning = TRUE;
1452         if (missing_news_warning) {
1453                 missing_news_warning = FALSE;
1454                 alertpanel_error(
1455                         _("You have one or more News accounts "
1456                           "defined. However this version of "
1457                           "Claws Mail has been built without "
1458                           "News support; your News account(s) are "
1459                           "disabled.\n\n"
1460                           "You probably need to "
1461                           "install libetpan and recompile "
1462                           "Claws Mail."));
1463         }
1464 }
1465 static Folder *news_folder_new(const gchar *name, const gchar *path)
1466 {
1467         warn_etpan();
1468         return NULL;
1469 }
1470 void news_group_list_free(GSList *group_list)
1471 {
1472         warn_etpan();
1473 }
1474 void news_remove_group_list_cache(Folder *folder)
1475 {
1476         warn_etpan();
1477 }
1478 int news_folder_locked(Folder *folder)
1479 {
1480         warn_etpan();
1481         return 0;
1482 }
1483 gint news_post(Folder *folder, const gchar *file)
1484 {
1485         warn_etpan();
1486         return -1;
1487 }
1488
1489 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1490 {
1491         warn_etpan();
1492         return -1;
1493 }
1494
1495 GSList *news_get_group_list(Folder *folder)
1496 {
1497         warn_etpan();
1498         return NULL;
1499 }
1500
1501
1502 FolderClass *news_get_class(void)
1503 {
1504         if (news_class.idstr == NULL) {
1505                 news_class.type = F_NEWS;
1506                 news_class.idstr = "news";
1507                 news_class.uistr = "News";
1508
1509                 /* Folder functions */
1510                 news_class.new_folder = news_folder_new;
1511         };
1512
1513         return &news_class;
1514 }
1515
1516 void nntp_disconnect_all(gboolean have_connectivity)
1517 {
1518 }
1519
1520 #endif