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 "passwordstore.h"
  52 #include "prefs_common.h"
  53 #include "prefs_account.h"
  54 #include "inputdialog.h"
  55 #include "log.h"
  56 #include "progressindicator.h"
  57 #include "remotefolder.h"
  58 #include "alertpanel.h"
  59 #include "inc.h"
  60 #include "account.h"
  61 #ifdef USE_GNUTLS
  62 #  include "ssl.h"
  63 #endif
  64 #include "main.h"
  65
  66 #define NNTP_PORT       119
  67 #ifdef USE_GNUTLS
  68 #define NNTPS_PORT      563
  69 #endif
  70
  71 typedef struct _NewsFolder      NewsFolder;
  72 typedef struct _NewsSession     NewsSession;
  73
  74 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  75 #define NEWS_SESSION(obj)       ((NewsSession *)obj)
  76
  77 struct _NewsFolder
  78 {
  79         RemoteFolder rfolder;
  80
  81         gboolean use_auth;
  82         gboolean lock_count;
  83         guint refcnt;
  84 };
  85
  86 struct _NewsSession
  87 {
  88         Session session;
  89         Folder *folder;
  90         gchar *group;
  91 };
  92
  93 static void news_folder_init(Folder *folder, const gchar *name,
  94                              const gchar *path);
  95
  96 static Folder   *news_folder_new        (const gchar    *name,
  97                                          const gchar    *folder);
  98 static void      news_folder_destroy    (Folder         *folder);
  99
 100 static gchar *news_fetch_msg            (Folder         *folder,
 101                                          FolderItem     *item,
 102                                          gint            num);
 103 static void news_remove_cached_msg      (Folder         *folder,
 104                                          FolderItem     *item,
 105                                          MsgInfo        *msginfo);
 106 #ifdef USE_GNUTLS
 107 static Session *news_session_new         (Folder                *folder,
 108                                           const PrefsAccount    *account,
 109                                           gushort                port,
 110                                           SSLType                ssl_type);
 111 #else
 112 static Session *news_session_new         (Folder                *folder,
 113                                           const PrefsAccount    *account,
 114                                           gushort                port);
 115 #endif
 116
 117 static gint news_get_article             (Folder        *folder,
 118                                           gint           num,
 119                                           gchar         *filename);
 120
 121 static gint news_select_group            (Folder        *folder,
 122                                           const gchar   *group,
 123                                           gint          *num,
 124                                           gint          *first,
 125                                           gint          *last);
 126 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 127 static gint news_get_num_list                    (Folder        *folder,
 128                                           FolderItem    *item,
 129                                           GSList       **list,
 130                                           gboolean      *old_uids_valid);
 131 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 132                                           FolderItem    *item,
 133                                           gint           num);
 134 static GSList *news_get_msginfos                 (Folder        *folder,
 135                                           FolderItem    *item,
 136                                           GSList        *msgnum_list);
 137 static gboolean news_scan_required               (Folder        *folder,
 138                                           FolderItem    *item);
 139
 140 static gchar *news_folder_get_path       (Folder        *folder);
 141 static gchar *news_item_get_path                 (Folder        *folder,
 142                                           FolderItem    *item);
 143 static void news_synchronise             (FolderItem    *item, gint days);
 144 static int news_remove_msg               (Folder        *folder,
 145                                           FolderItem    *item,
 146                                           gint           msgnum);
 147 static gint news_rename_folder           (Folder *folder,
 148                                           FolderItem *item,
 149                                           const gchar *name);
 150 static gint news_remove_folder           (Folder        *folder,
 151                                           FolderItem    *item);
 152 static FolderClass news_class;
 153
 154 FolderClass *news_get_class(void)
 155 {
 156         if (news_class.idstr == NULL) {
 157                 news_class.type = F_NEWS;
 158                 news_class.idstr = "news";
 159                 news_class.uistr = "News";
 160                 news_class.supports_server_search = FALSE;
 161
 162                 /* Folder functions */
 163                 news_class.new_folder = news_folder_new;
 164                 news_class.destroy_folder = news_folder_destroy;
 165
 166                 /* FolderItem functions */
 167                 news_class.item_get_path = news_item_get_path;
 168                 news_class.get_num_list = news_get_num_list;
 169                 news_class.scan_required = news_scan_required;
 170                 news_class.rename_folder = news_rename_folder;
 171                 news_class.remove_folder = news_remove_folder;
 172
 173                 /* Message functions */
 174                 news_class.get_msginfo = news_get_msginfo;
 175                 news_class.get_msginfos = news_get_msginfos;
 176                 news_class.fetch_msg = news_fetch_msg;
 177                 news_class.synchronise = news_synchronise;
 178                 news_class.search_msgs = folder_item_search_msgs_local;
 179                 news_class.remove_msg = news_remove_msg;
 180                 news_class.remove_cached_msg = news_remove_cached_msg;
 181         };
 182
 183         return &news_class;
 184 }
 185
 186 guint nntp_folder_get_refcnt(Folder *folder)
 187 {
 188         return ((NewsFolder *)folder)->refcnt;
 189 }
 190
 191 void nntp_folder_ref(Folder *folder)
 192 {
 193         ((NewsFolder *)folder)->refcnt++;
 194 }
 195
 196 void nntp_folder_unref(Folder *folder)
 197 {
 198         if (((NewsFolder *)folder)->refcnt > 0)
 199                 ((NewsFolder *)folder)->refcnt--;
 200 }
 201
 202 static int news_remove_msg               (Folder        *folder,
 203                                           FolderItem    *item,
 204                                           gint           msgnum)
 205 {
 206         gchar *path, *filename;
 207
 208         cm_return_val_if_fail(folder != NULL, -1);
 209         cm_return_val_if_fail(item != NULL, -1);
 210
 211         path = folder_item_get_path(item);
 212         if (!is_dir_exist(path))
 213                 make_dir_hier(path);
 214
 215         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 216         g_free(path);
 217         claws_unlink(filename);
 218         g_free(filename);
 219         return 0;
 220 }
 221
 222 static void news_folder_lock(NewsFolder *folder)
 223 {
 224         folder->lock_count++;
 225 }
 226
 227 static void news_folder_unlock(NewsFolder *folder)
 228 {
 229         if (folder->lock_count > 0)
 230                 folder->lock_count--;
 231 }
 232
 233 int news_folder_locked(Folder *folder)
 234 {
 235         if (folder == NULL)
 236                 return 0;
 237
 238         return NEWS_FOLDER(folder)->lock_count;
 239 }
 240
 241 static Folder *news_folder_new(const gchar *name, const gchar *path)
 242 {
 243         Folder *folder;
 244
 245         folder = (Folder *)g_new0(NewsFolder, 1);
 246         folder->klass = &news_class;
 247         news_folder_init(folder, name, path);
 248
 249         return folder;
 250 }
 251
 252 static void news_folder_destroy(Folder *folder)
 253 {
 254         gchar *dir;
 255
 256         while (nntp_folder_get_refcnt(folder) > 0)
 257                 gtk_main_iteration();
 258
 259         dir = news_folder_get_path(folder);
 260         if (is_dir_exist(dir))
 261                 remove_dir_recursive(dir);
 262         g_free(dir);
 263
 264         nntp_done(folder);
 265         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 266 }
 267
 268 static void news_folder_init(Folder *folder, const gchar *name,
 269                              const gchar *path)
 270 {
 271         folder_remote_folder_init(folder, name, path);
 272 }
 273
 274 static void news_session_destroy(Session *session)
 275 {
 276         NewsSession *news_session = NEWS_SESSION(session);
 277
 278         cm_return_if_fail(session != NULL);
 279
 280         if (news_session->group)
 281                 g_free(news_session->group);
 282 }
 283
 284 static gboolean nntp_ping(gpointer data)
 285 {
 286         Session *session = (Session *)data;
 287         NewsSession *news_session = NEWS_SESSION(session);
 288         int r;
 289         struct tm lt;
 290
 291         if (session->state != SESSION_READY || news_folder_locked(news_session->folder))
 292                 return FALSE;
 293
 294         news_folder_lock(NEWS_FOLDER(news_session->folder));
 295
 296         if ((r = nntp_threaded_date(news_session->folder, &lt)) != NEWSNNTP_NO_ERROR) {
 297                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 298                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 299                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 300                               " disconnected.\n"),
 301                             news_session->folder->account->nntp_server,
 302                             news_session->folder->account->set_nntpport ?
 303                             news_session->folder->account->nntpport : NNTP_PORT);
 304                         REMOTE_FOLDER(news_session->folder)->session = NULL;
 305                         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 306                         session->state = SESSION_DISCONNECTED;
 307                         session->sock = NULL;
 308                         session_destroy(session);
 309                         return FALSE;
 310                 }
 311         }
 312
 313         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 314         session_set_access_time(session);
 315         return TRUE;
 316 }
 317
 318
 319 #ifdef USE_GNUTLS
 320 static Session *news_session_new(Folder *folder, const PrefsAccount *account, gushort port,
 321                                  SSLType ssl_type)
 322 #else
 323 static Session *news_session_new(Folder *folder, const PrefsAccount *account, gushort port)
 324 #endif
 325 {
 326         NewsSession *session;
 327         const char *server = account->nntp_server;
 328         int r = 0;
 329         ProxyInfo *proxy_info = NULL;
 330
 331         cm_return_val_if_fail(server != NULL, NULL);
 332
 333         log_message(LOG_PROTOCOL,
 334                         _("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         if (account->use_proxy) {
 346                 if (account->use_default_proxy) {
 347                         proxy_info = (ProxyInfo *)&(prefs_common.proxy_info);
 348                         if (proxy_info->use_proxy_auth)
 349                                 proxy_info->proxy_pass = passwd_store_get(PWS_CORE, PWS_CORE_PROXY,
 350                                         PWS_CORE_PROXY_PASS);
 351                 } else {
 352                         proxy_info = (ProxyInfo *)&(account->proxy_info);
 353                         if (proxy_info->use_proxy_auth)
 354                                 proxy_info->proxy_pass = passwd_store_get_account(account->account_id,
 355                                         PWS_ACCOUNT_PROXY_PASS);
 356                 }
 357         }
 358         SESSION(session)->proxy_info = proxy_info;
 359
 360         nntp_init(folder);
 361
 362 #ifdef USE_GNUTLS
 363         if (ssl_type != SSL_NONE)
 364                 r = nntp_threaded_connect_ssl(folder, server, port, proxy_info);
 365         else
 366 #endif
 367                 r = nntp_threaded_connect(folder, server, port, proxy_info);
 368
 369         if (r != NEWSNNTP_NO_ERROR) {
 370                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d...\n"), server, port);
 371                 session_destroy(SESSION(session));
 372                 return NULL;
 373         }
 374
 375         session->folder = folder;
 376
 377         return SESSION(session);
 378 }
 379
 380 static Session *news_session_new_for_folder(Folder *folder)
 381 {
 382         Session *session;
 383         PrefsAccount *ac;
 384         const gchar *userid = NULL;
 385         gchar *passwd = NULL;
 386         gushort port;
 387         int r;
 388
 389         cm_return_val_if_fail(folder != NULL, NULL);
 390         cm_return_val_if_fail(folder->account != NULL, NULL);
 391
 392         ac = folder->account;
 393
 394 #ifdef USE_GNUTLS
 395         port = ac->set_nntpport ? ac->nntpport
 396                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 397         session = news_session_new(folder, ac, port, ac->ssl_nntp);
 398 #else
 399         if (ac->ssl_nntp != SSL_NONE) {
 400                 if (alertpanel_full(_("Insecure connection"),
 401                         _("This connection is configured to be secured "
 402                           "using SSL/TLS, but SSL/TLS is not available "
 403                           "in this build of Claws Mail. \n\n"
 404                           "Do you want to continue connecting to this "
 405                           "server? The communication would not be "
 406                           "secure."),
 407                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 408                           NULL, FALSE, NULL, ALERT_WARNING,
 409                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 410                         return NULL;
 411         }
 412         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 413         session = news_session_new(folder, ac, port);
 414 #endif
 415
 416         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 417                 userid = ac->userid;
 418                 if (password_get(userid, ac->nntp_server, "nntp", port, &passwd)) {
 419                         /* NOP */;
 420                 } else if ((passwd = passwd_store_get_account(ac->account_id,
 421                                         PWS_ACCOUNT_RECV)) == NULL) {
 422                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 423                                                                   userid,
 424                                                                   &(ac->session_passwd));
 425                 }
 426         }
 427
 428         if (session != NULL)
 429                 r = nntp_threaded_mode_reader(folder);
 430         else
 431                 r = NEWSNNTP_ERROR_CONNECTION_REFUSED;
 432
 433         if (r != NEWSNNTP_NO_ERROR) {
 434             if (r == NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 435                 /*
 436                    FIX ME when libetpan implements 480 to indicate authorization
 437                    is required to use this capability. Libetpan treats a 480 as a
 438                    381 which is clearly wrong.
 439                    RFC 4643 section 2.
 440                    Response code 480
 441                    Generic response
 442                    Meaning: command unavailable until the client
 443                    has authenticated itself.
 444                 */
 445                 /* if the server does not advertise the capability MODE-READER,
 446                    we normally should not send MODE READER. However this can't
 447                    hurt: a transit-only server returns 502 and closes the cnx.
 448                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 449                 */
 450                 log_error(LOG_PROTOCOL, _("Libetpan does not support return code 480 "
 451                 "so for now we choose to continue\n"));
 452             }
 453             else if (r == NEWSNNTP_ERROR_UNEXPECTED_RESPONSE) {
 454                 /* if the server does not advertise the capability MODE-READER,
 455                    we normally should not send MODE READER. However this can't
 456                    hurt: a transit-only server returns 502 and closes the cnx.
 457                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 458                 */
 459                 log_error(LOG_PROTOCOL, _("Mode reader failed, continuing nevertheless\n"));
 460             }
 461             else {
 462                 /* An error state bail out */
 463                 log_error(LOG_PROTOCOL, _("Error creating session with %s:%d\n"), ac->nntp_server, port);
 464                 if (session != NULL)
 465                         session_destroy(SESSION(session));
 466                 g_free(passwd);
 467                 if (ac->session_passwd) {
 468                         g_free(ac->session_passwd);
 469                         ac->session_passwd = NULL;
 470                 }
 471                 return NULL;
 472             }
 473         }
 474
 475         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 476                 if (nntp_threaded_login(folder, userid, passwd) !=
 477                         NEWSNNTP_NO_ERROR) {
 478                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d...\n"), ac->nntp_server, port);
 479                         session_destroy(SESSION(session));
 480                         g_free(passwd);
 481                         if (ac->session_passwd) {
 482                                 g_free(ac->session_passwd);
 483                                 ac->session_passwd = NULL;
 484                         }
 485                         return NULL;
 486                 }
 487         }
 488         g_free(passwd);
 489
 490         return session;
 491 }
 492
 493 static NewsSession *news_session_get(Folder *folder)
 494 {
 495         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 496
 497         cm_return_val_if_fail(folder != NULL, NULL);
 498         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 499         cm_return_val_if_fail(folder->account != NULL, NULL);
 500
 501         if (prefs_common.work_offline &&
 502             !inc_offline_should_override(FALSE,
 503                 _("Claws Mail needs network access in order "
 504                   "to access the News server."))) {
 505                 return NULL;
 506         }
 507
 508         if (!rfolder->session) {
 509                 rfolder->session = news_session_new_for_folder(folder);
 510                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 511                 return NEWS_SESSION(rfolder->session);
 512         }
 513
 514         /* Handle port change (also ssl/nossl change) without needing to
 515          * restart application. */
 516         if (rfolder->session->port != folder->account->nntpport) {
 517                 session_destroy(rfolder->session);
 518                 rfolder->session = news_session_new_for_folder(folder);
 519                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 520                 goto newsession;
 521         }
 522
 523         if (time(NULL) - rfolder->session->last_access_time <
 524                 SESSION_TIMEOUT_INTERVAL) {
 525                 return NEWS_SESSION(rfolder->session);
 526         }
 527
 528         if (!nntp_ping(rfolder->session)) {
 529                 rfolder->session = news_session_new_for_folder(folder);
 530                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 531         }
 532
 533 newsession:
 534         if (rfolder->session)
 535                 session_set_access_time(rfolder->session);
 536
 537         return NEWS_SESSION(rfolder->session);
 538 }
 539
 540 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 541 {
 542         gchar *path, *filename;
 543
 544         path = folder_item_get_path(item);
 545
 546         if (!is_dir_exist(path)) {
 547                 g_free(path);
 548                 return;
 549         }
 550
 551         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 552         g_free(path);
 553
 554         if (is_file_exist(filename)) {
 555                 claws_unlink(filename);
 556         }
 557         g_free(filename);
 558 }
 559
 560 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 561 {
 562         gchar *path, *filename;
 563         NewsSession *session;
 564         gint ok;
 565
 566         cm_return_val_if_fail(folder != NULL, NULL);
 567         cm_return_val_if_fail(item != NULL, NULL);
 568
 569         path = folder_item_get_path(item);
 570         if (!is_dir_exist(path))
 571                 make_dir_hier(path);
 572         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 573         g_free(path);
 574
 575         if (is_file_exist(filename)) {
 576                 debug_print("article %d has been already cached.\n", num);
 577                 return filename;
 578         }
 579
 580         session = news_session_get(folder);
 581         if (!session) {
 582                 g_free(filename);
 583                 return NULL;
 584         }
 585
 586         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 587         if (ok != NEWSNNTP_NO_ERROR) {
 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
 596         debug_print("getting article %d...\n", num);
 597         ok = news_get_article(folder,
 598                               num, filename);
 599         if (ok != NEWSNNTP_NO_ERROR) {
 600                 g_warning("can't read article %d", num);
 601                 if (ok == NEWSNNTP_ERROR_STREAM) {
 602                         session_destroy(SESSION(session));
 603                         REMOTE_FOLDER(folder)->session = NULL;
 604                 }
 605                 g_free(filename);
 606                 return NULL;
 607         }
 608         GTK_EVENTS_FLUSH();
 609         return filename;
 610 }
 611
 612 static NewsGroupInfo *news_group_info_new(const gchar *name,
 613                                           gint first, gint last, gchar type)
 614 {
 615         NewsGroupInfo *ginfo;
 616
 617         ginfo = g_new(NewsGroupInfo, 1);
 618         ginfo->name = g_strdup(name);
 619         ginfo->first = first;
 620         ginfo->last = last;
 621         ginfo->type = type;
 622
 623         return ginfo;
 624 }
 625
 626 static void news_group_info_free(NewsGroupInfo *ginfo)
 627 {
 628         g_free(ginfo->name);
 629         g_free(ginfo);
 630 }
 631
 632 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 633                                     NewsGroupInfo *ginfo2)
 634 {
 635         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 636 }
 637
 638 GSList *news_get_group_list(Folder *folder)
 639 {
 640         gchar *path, *filename;
 641         FILE *fp;
 642         GSList *list = NULL;
 643         GSList *last = NULL;
 644         gchar buf[BUFFSIZE];
 645
 646         cm_return_val_if_fail(folder != NULL, NULL);
 647         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 648
 649         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 650         if (!is_dir_exist(path))
 651                 make_dir_hier(path);
 652         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 653         g_free(path);
 654
 655         if ((fp = g_fopen(filename, "rb")) == NULL) {
 656                 NewsSession *session;
 657                 gint ok;
 658                 clist *grouplist = NULL;
 659                 clistiter *cur;
 660                 fp = g_fopen(filename, "wb");
 661
 662                 if (!fp) {
 663                         g_free(filename);
 664                         return NULL;
 665                 }
 666                 session = news_session_get(folder);
 667                 if (!session) {
 668                         fclose(fp);
 669                         g_free(filename);
 670                         return NULL;
 671                 }
 672
 673                 ok = nntp_threaded_list(folder, &grouplist);
 674
 675                 if (ok != NEWSNNTP_NO_ERROR) {
 676                         if (ok == NEWSNNTP_ERROR_STREAM) {
 677                                 session_destroy(SESSION(session));
 678                                 REMOTE_FOLDER(folder)->session = NULL;
 679                         }
 680                         fclose(fp);
 681                         g_free(filename);
 682                         return NULL;
 683                 }
 684
 685                 if (grouplist) {
 686                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 687                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 688                                                                         clist_content(cur);
 689                                 if (fprintf(fp, "%s %d %d %c\n",
 690                                         info->grp_name,
 691                                         info->grp_last,
 692                                         info->grp_first,
 693                                         info->grp_type) < 0) {
 694                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 695                                         session_destroy(SESSION(session));
 696                                         REMOTE_FOLDER(folder)->session = NULL;
 697                                         fclose(fp);
 698                                         g_free(filename);
 699                                         newsnntp_list_free(grouplist);
 700                                         return NULL;
 701                                 }
 702                         }
 703                         newsnntp_list_free(grouplist);
 704                 }
 705                 if (fclose(fp) == EOF) {
 706                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 707                         session_destroy(SESSION(session));
 708                         REMOTE_FOLDER(folder)->session = NULL;
 709                         g_free(filename);
 710                         return NULL;
 711                 }
 712
 713                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 714                         FILE_OP_ERROR(filename, "fopen");
 715                         g_free(filename);
 716                         return NULL;
 717                 }
 718         }
 719
 720         while (fgets(buf, sizeof(buf), fp) != NULL) {
 721                 gchar *p = buf;
 722                 gchar *name;
 723                 gint last_num;
 724                 gint first_num;
 725                 gchar type;
 726                 NewsGroupInfo *ginfo;
 727
 728                 p = strchr(p, ' ');
 729                 if (!p) continue;
 730                 *p = '\0';
 731                 p++;
 732                 name = buf;
 733
 734                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 735                         continue;
 736
 737                 ginfo = news_group_info_new(name, first_num, last_num, type);
 738
 739                 if (!last)
 740                         last = list = g_slist_append(NULL, ginfo);
 741                 else {
 742                         last = g_slist_append(last, ginfo);
 743                         last = last->next;
 744                 }
 745         }
 746
 747         fclose(fp);
 748         g_free(filename);
 749
 750         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 751
 752         return list;
 753 }
 754
 755 void news_group_list_free(GSList *group_list)
 756 {
 757         GSList *cur;
 758
 759         if (!group_list) return;
 760
 761         for (cur = group_list; cur != NULL; cur = cur->next)
 762                 news_group_info_free((NewsGroupInfo *)cur->data);
 763         g_slist_free(group_list);
 764 }
 765
 766 void news_remove_group_list_cache(Folder *folder)
 767 {
 768         gchar *path, *filename;
 769
 770         cm_return_if_fail(folder != NULL);
 771         cm_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 772
 773         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 774         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 775         g_free(path);
 776
 777         if (is_file_exist(filename)) {
 778                 if (claws_unlink(filename) < 0)
 779                         FILE_OP_ERROR(filename, "remove");
 780         }
 781         g_free(filename);
 782 }
 783
 784 gint news_post(Folder *folder, const gchar *file)
 785 {
 786         gint ok;
 787         char *contents = file_read_to_str_no_recode(file);
 788         NewsSession *session;
 789
 790         cm_return_val_if_fail(folder != NULL, -1);
 791         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 792         cm_return_val_if_fail(contents != NULL, -1);
 793
 794         session = news_session_get(folder);
 795         if (!session)  {
 796                 g_free(contents);
 797                 return -1;
 798         }
 799
 800         ok = nntp_threaded_post(folder, contents, strlen(contents));
 801
 802         g_free(contents);
 803
 804         if (ok == NEWSNNTP_ERROR_STREAM) {
 805                 session_destroy(SESSION(session));
 806                 REMOTE_FOLDER(folder)->session = NULL;
 807         }
 808
 809         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 810 }
 811
 812 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 813 {
 814         size_t len;
 815         char *result = NULL;
 816         int r;
 817
 818         r = nntp_threaded_article(folder, num, &result, &len);
 819
 820         if (r == NEWSNNTP_NO_ERROR) {
 821                 if (str_write_to_file(result, filename) < 0) {
 822                         mmap_string_unref(result);
 823                         return -1;
 824                 }
 825                 mmap_string_unref(result);
 826         }
 827
 828         return r;
 829 }
 830
 831 /**
 832  * news_select_group:
 833  * @session: Active NNTP session.
 834  * @group: Newsgroup name.
 835  * @num: Estimated number of articles.
 836  * @first: First article number.
 837  * @last: Last article number.
 838  *
 839  * Select newsgroup @group with the GROUP command if it is not already
 840  * selected in @session, or article numbers need to be returned.
 841  *
 842  * Return value: NNTP result code.
 843  **/
 844 static gint news_select_group(Folder *folder, const gchar *group,
 845                               gint *num, gint *first, gint *last)
 846 {
 847         gint ok;
 848         gint num_, first_, last_;
 849         struct newsnntp_group_info *info = NULL;
 850         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 851
 852         cm_return_val_if_fail(session != NULL, -1);
 853
 854         if (!num || !first || !last) {
 855                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 856                         return NEWSNNTP_NO_ERROR;
 857                 num = &num_;
 858                 first = &first_;
 859                 last = &last_;
 860         }
 861
 862         g_free(session->group);
 863         session->group = NULL;
 864
 865         ok = nntp_threaded_group(folder, group, &info);
 866
 867         if (ok == NEWSNNTP_NO_ERROR && info) {
 868                 session->group = g_strdup(group);
 869                 *num = info->grp_first;
 870                 *first = info->grp_first;
 871                 *last = info->grp_last;
 872                 newsnntp_group_free(info);
 873         } else {
 874                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 875         }
 876         return ok;
 877 }
 878
 879 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 880 {
 881         MsgInfo *msginfo;
 882
 883         /* set MsgInfo */
 884         msginfo = procmsg_msginfo_new();
 885         msginfo->msgnum = item->ovr_article;
 886         msginfo->size = item->ovr_size;
 887
 888         msginfo->date = g_strdup(item->ovr_date);
 889         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 890
 891         msginfo->from = conv_unmime_header(item->ovr_author, NULL, TRUE);
 892         msginfo->fromname = procheader_get_fromname(msginfo->from);
 893
 894         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL, TRUE);
 895
 896         remove_return(msginfo->from);
 897         remove_return(msginfo->fromname);
 898         remove_return(msginfo->subject);
 899
 900         if (item->ovr_message_id) {
 901                 gchar *tmp = g_strdup(item->ovr_message_id);
 902                 extract_parenthesis(tmp, '<', '>');
 903                 remove_space(tmp);
 904                 if (*tmp != '\0')
 905                         msginfo->msgid = g_strdup(tmp);
 906                 g_free(tmp);
 907         }
 908
 909         /* FIXME: this is a quick fix; references' meaning was changed
 910          * into having the actual list of references in the References: header.
 911          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 912          * their things properly. */
 913         if (item->ovr_references && *(item->ovr_references)) {
 914                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 915                 guint i = 0;
 916                 char *tmp;
 917                 char *p;
 918                 while (ref_tokens[i]) {
 919                         gchar *cur_ref = ref_tokens[i];
 920                         msginfo->references = references_list_append(msginfo->references,
 921                                         cur_ref);
 922                         i++;
 923                 }
 924                 g_strfreev(ref_tokens);
 925
 926                 tmp = g_strdup(item->ovr_references);
 927                 eliminate_parenthesis(tmp, '(', ')');
 928                 if ((p = strrchr(tmp, '<')) != NULL) {
 929                         extract_parenthesis(p, '<', '>');
 930                         remove_space(p);
 931                         if (*p != '\0')
 932                                 msginfo->inreplyto = g_strdup(p);
 933                 }
 934                 g_free(tmp);
 935         }
 936
 937         return msginfo;
 938 }
 939
 940 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 941 {
 942         gchar * tmp;
 943         FILE * tmpfp;
 944         gchar date[RFC822_DATE_BUFFSIZE];
 945
 946         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 947                               G_DIR_SEPARATOR, msginfo);
 948         if (tmp == NULL)
 949                 return -1;
 950
 951         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 952                 FILE_OP_ERROR(tmp, "fopen");
 953                 return -1;
 954         }
 955         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 956                 FILE_OP_ERROR(tmp, "chmod");
 957                 g_warning("can't change file mode");
 958         }
 959
 960         if (prefs_common.hide_timezone)
 961                 get_rfc822_date_hide_tz(date, sizeof(date));
 962         else
 963                 get_rfc822_date(date, sizeof(date));
 964         if (fprintf(tmpfp, "From: %s\r\n"
 965                        "Newsgroups: %s\r\n"
 966                        "Subject: cmsg cancel <%s>\r\n"
 967                        "Control: cancel <%s>\r\n"
 968                        "Approved: %s\r\n"
 969                        "X-Cancelled-by: %s\r\n"
 970                        "Date: %s\r\n"
 971                        "\r\n"
 972                        "removed with Claws Mail\r\n",
 973                        msginfo->from,
 974                        msginfo->newsgroups,
 975                        msginfo->msgid,
 976                        msginfo->msgid,
 977                        msginfo->from,
 978                        msginfo->from,
 979                        date) < 0) {
 980                 FILE_OP_ERROR(tmp, "fprintf");
 981                 fclose(tmpfp);
 982                 claws_unlink(tmp);
 983                 g_free(tmp);
 984                 return -1;
 985         }
 986
 987         if (fclose(tmpfp) == EOF) {
 988                 FILE_OP_ERROR(tmp, "fclose");
 989                 claws_unlink(tmp);
 990                 g_free(tmp);
 991                 return -1;
 992         }
 993
 994         news_post(folder, tmp);
 995         claws_unlink(tmp);
 996
 997         g_free(tmp);
 998
 999         return 0;
1000 }
1001
1002 static gchar *news_folder_get_path(Folder *folder)
1003 {
1004         gchar *folder_path;
1005
1006         cm_return_val_if_fail(folder->account != NULL, NULL);
1007
1008         folder_path = g_strconcat(get_news_cache_dir(),
1009                                   G_DIR_SEPARATOR_S,
1010                                   folder->account->nntp_server,
1011                                   NULL);
1012         return folder_path;
1013 }
1014
1015 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
1016 {
1017         gchar *folder_path, *path;
1018
1019         cm_return_val_if_fail(folder != NULL, NULL);
1020         cm_return_val_if_fail(item != NULL, NULL);
1021         folder_path = news_folder_get_path(folder);
1022
1023         cm_return_val_if_fail(folder_path != NULL, NULL);
1024         if (g_path_is_absolute(folder_path)) {
1025                 if (item->path)
1026                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
1027                                            item->path, NULL);
1028                 else
1029                         path = g_strdup(folder_path);
1030         } else {
1031                 if (item->path)
1032                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1033                                            folder_path, G_DIR_SEPARATOR_S,
1034                                            item->path, NULL);
1035                 else
1036                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1037                                            folder_path, NULL);
1038         }
1039         g_free(folder_path);
1040 #ifdef G_OS_WIN32
1041         while (strchr(path, '/'))
1042                 *strchr(path, '/') = '\\';
1043 #endif
1044         return path;
1045 }
1046
1047 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
1048 {
1049         NewsSession *session;
1050         gint i, ok, num, first, last, nummsgs = 0;
1051         gchar *dir;
1052
1053         cm_return_val_if_fail(item != NULL, -1);
1054         cm_return_val_if_fail(item->folder != NULL, -1);
1055         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
1056
1057         session = news_session_get(folder);
1058         cm_return_val_if_fail(session != NULL, -1);
1059
1060         *old_uids_valid = TRUE;
1061
1062         news_folder_lock(NEWS_FOLDER(item->folder));
1063
1064         ok = news_select_group(folder, item->path, &num, &first, &last);
1065         if (ok != NEWSNNTP_NO_ERROR) {
1066                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1067                 news_folder_unlock(NEWS_FOLDER(item->folder));
1068                 return -1;
1069         }
1070
1071         dir = news_folder_get_path(folder);
1072         if (num <= 0)
1073                 remove_all_numbered_files(dir);
1074         else if (last < first)
1075                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
1076                             first, last);
1077         else {
1078                 for (i = first; i <= last; i++) {
1079                         *msgnum_list = g_slist_prepend(*msgnum_list,
1080                                                        GINT_TO_POINTER(i));
1081                         nummsgs++;
1082                 }
1083                 debug_print("removing old messages from %d to %d in %s\n",
1084                             first, last, dir);
1085                 remove_numbered_files(dir, 1, first - 1);
1086         }
1087         g_free(dir);
1088         news_folder_unlock(NEWS_FOLDER(item->folder));
1089         return nummsgs;
1090 }
1091
1092 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1093 {
1094         msginfo->flags.tmp_flags = 0;
1095         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1096                 if (item->folder->newsart &&
1097                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1098                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1099
1100                 } else {
1101                         if (!item->folder->newsart)
1102                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1103                         g_hash_table_insert(item->folder->newsart,
1104                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1105                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1106                 }
1107         } else {
1108                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1109         }
1110 }
1111
1112 static void news_get_extra_fields(NewsSession *session, FolderItem *item, GSList *msglist)
1113 {
1114         MsgInfo *msginfo = NULL;
1115         gint ok;
1116         GSList *cur;
1117         clist *hdrlist = NULL;
1118         clistiter *hdr;
1119         gint first = -1, last = -1;
1120         GHashTable *hash_table;
1121
1122         cm_return_if_fail(session != NULL);
1123         cm_return_if_fail(item != NULL);
1124         cm_return_if_fail(item->folder != NULL);
1125         cm_return_if_fail(FOLDER_CLASS(item->folder) == &news_class);
1126
1127         news_folder_lock(NEWS_FOLDER(item->folder));
1128
1129         hash_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1130
1131         for (cur = msglist; cur; cur = cur->next) {
1132                 msginfo = (MsgInfo *)cur->data;
1133                 if (first == -1 || msginfo->msgnum < first)
1134                         first = msginfo->msgnum;
1135                 if (last == -1 || msginfo->msgnum > last)
1136                         last = msginfo->msgnum;
1137                 g_hash_table_insert(hash_table,
1138                                 GINT_TO_POINTER(msginfo->msgnum), msginfo);
1139         }
1140
1141 /* Newsgroups */
1142         ok = nntp_threaded_xhdr(item->folder, "newsgroups", first, last, &hdrlist);
1143
1144         if (ok != NEWSNNTP_NO_ERROR) {
1145                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1146                 if (ok == NEWSNNTP_ERROR_STREAM) {
1147                         session_destroy(SESSION(session));
1148                         REMOTE_FOLDER(item->folder)->session = NULL;
1149                 }
1150                 news_folder_unlock(NEWS_FOLDER(item->folder));
1151                 if (hdrlist != NULL)
1152                         newsnntp_xhdr_free(hdrlist);
1153                 return;
1154         }
1155
1156         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1157                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1158                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1159                 if (msginfo) {
1160                         if (msginfo->newsgroups)
1161                                 g_free(msginfo->newsgroups);
1162                         msginfo->newsgroups = g_strdup(hdrval->hdr_value);
1163                 }
1164         }
1165         newsnntp_xhdr_free(hdrlist);
1166         hdrlist = NULL;
1167
1168 /* To */
1169         ok = nntp_threaded_xhdr(item->folder, "to", first, last, &hdrlist);
1170
1171         if (ok != NEWSNNTP_NO_ERROR) {
1172                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1173                 if (ok == NEWSNNTP_ERROR_STREAM) {
1174                         session_destroy(SESSION(session));
1175                         REMOTE_FOLDER(item->folder)->session = NULL;
1176                 }
1177                 news_folder_unlock(NEWS_FOLDER(item->folder));
1178                 if (hdrlist != NULL)
1179                         newsnntp_xhdr_free(hdrlist);
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->to)
1188                                 g_free(msginfo->to);
1189                         msginfo->to = g_strdup(hdrval->hdr_value);
1190                 }
1191         }
1192         newsnntp_xhdr_free(hdrlist);
1193         hdrlist = NULL;
1194
1195 /* Cc */
1196         ok = nntp_threaded_xhdr(item->folder, "cc", first, last, &hdrlist);
1197
1198         if (ok != NEWSNNTP_NO_ERROR) {
1199                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1200                 if (ok == NEWSNNTP_ERROR_STREAM) {
1201                         session_destroy(SESSION(session));
1202                         REMOTE_FOLDER(item->folder)->session = NULL;
1203                 }
1204                 news_folder_unlock(NEWS_FOLDER(item->folder));
1205                 if (hdrlist != NULL)
1206                         newsnntp_xhdr_free(hdrlist);
1207                 return;
1208         }
1209
1210         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1211                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1212                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1213                 if (msginfo) {
1214                         if (msginfo->cc)
1215                                 g_free(msginfo->cc);
1216                         msginfo->cc = g_strdup(hdrval->hdr_value);
1217                 }
1218         }
1219         newsnntp_xhdr_free(hdrlist);
1220         hdrlist = NULL;
1221
1222         g_hash_table_destroy(hash_table);
1223         news_folder_unlock(NEWS_FOLDER(item->folder));
1224 }
1225
1226 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1227 {
1228         GSList *newlist = NULL;
1229         GSList *llast = NULL;
1230         MsgInfo *msginfo;
1231         gint ok;
1232         clist *msglist = NULL;
1233         clistiter *cur;
1234         cm_return_val_if_fail(session != NULL, NULL);
1235         cm_return_val_if_fail(item != NULL, NULL);
1236
1237         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1238                     begin, end, item->path);
1239
1240         news_folder_lock(NEWS_FOLDER(item->folder));
1241
1242         ok = news_select_group(item->folder, item->path, NULL, NULL, NULL);
1243         if (ok != NEWSNNTP_NO_ERROR) {
1244                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1245                 news_folder_unlock(NEWS_FOLDER(item->folder));
1246                 return NULL;
1247         }
1248
1249         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1250
1251         if (ok != NEWSNNTP_NO_ERROR) {
1252                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1253                 if (ok == NEWSNNTP_ERROR_STREAM) {
1254                         session_destroy(SESSION(session));
1255                         REMOTE_FOLDER(item->folder)->session = NULL;
1256                 }
1257                 news_folder_unlock(NEWS_FOLDER(item->folder));
1258                 if (msglist != NULL)
1259                         newsnntp_xover_resp_list_free(msglist);
1260                 return NULL;
1261         }
1262
1263         if (msglist) {
1264                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1265                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1266                         msginfo = news_parse_xover(ritem);
1267
1268                         if (!msginfo) {
1269                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1270                                 continue;
1271                         }
1272
1273                         msginfo->folder = item;
1274                         news_set_msg_flags(item, msginfo);
1275                         msginfo->flags.tmp_flags |= MSG_NEWS;
1276
1277                         if (!newlist)
1278                                 llast = newlist = g_slist_append(newlist, msginfo);
1279                         else {
1280                                 llast = g_slist_append(llast, msginfo);
1281                                 llast = llast->next;
1282                         }
1283                 }
1284                 newsnntp_xover_resp_list_free(msglist);
1285         }
1286
1287         news_folder_unlock(NEWS_FOLDER(item->folder));
1288
1289         session_set_access_time(SESSION(session));
1290
1291         news_get_extra_fields(session, item, newlist);
1292
1293         return newlist;
1294 }
1295
1296 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1297 {
1298         GSList *msglist = NULL;
1299         NewsSession *session;
1300         MsgInfo *msginfo = NULL;
1301
1302         session = news_session_get(folder);
1303         cm_return_val_if_fail(session != NULL, NULL);
1304         cm_return_val_if_fail(item != NULL, NULL);
1305         cm_return_val_if_fail(item->folder != NULL, NULL);
1306         cm_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1307
1308         msglist = news_get_msginfos_for_range(session, item, num, num);
1309
1310         if (msglist)
1311                 msginfo = msglist->data;
1312
1313         g_slist_free(msglist);
1314
1315         return msginfo;
1316 }
1317
1318 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1319 {
1320         NewsSession *session;
1321         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1322         guint first, last, next;
1323
1324         cm_return_val_if_fail(folder != NULL, NULL);
1325         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1326         cm_return_val_if_fail(msgnum_list != NULL, NULL);
1327         cm_return_val_if_fail(item != NULL, NULL);
1328
1329         session = news_session_get(folder);
1330         cm_return_val_if_fail(session != NULL, NULL);
1331
1332         tmp_msgnum_list = g_slist_copy(msgnum_list);
1333         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1334
1335         progressindicator_start(PROGRESS_TYPE_NETWORK);
1336
1337         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1338         last = first;
1339
1340         news_folder_lock(NEWS_FOLDER(item->folder));
1341
1342         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1343                 next = GPOINTER_TO_INT(elem->data);
1344                 if(next != (last + 1)) {
1345                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1346                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1347                         first = next;
1348                 }
1349                 last = next;
1350         }
1351
1352         news_folder_unlock(NEWS_FOLDER(item->folder));
1353
1354         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1355         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1356
1357         g_slist_free(tmp_msgnum_list);
1358
1359         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1360
1361         return msginfo_list;
1362 }
1363
1364 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1365 {
1366         return TRUE;
1367 }
1368
1369 void news_synchronise(FolderItem *item, gint days)
1370 {
1371         news_gtk_synchronise(item, days);
1372 }
1373
1374 static gint news_rename_folder(Folder *folder, FolderItem *item,
1375                                 const gchar *name)
1376 {
1377         gchar *path;
1378
1379         cm_return_val_if_fail(folder != NULL, -1);
1380         cm_return_val_if_fail(item != NULL, -1);
1381         cm_return_val_if_fail(item->path != NULL, -1);
1382         cm_return_val_if_fail(name != NULL, -1);
1383
1384         path = folder_item_get_path(item);
1385         if (!is_dir_exist(path))
1386                 make_dir_hier(path);
1387
1388         g_free(item->name);
1389         item->name = g_strdup(name);
1390
1391         return 0;
1392 }
1393
1394 static gint news_remove_folder(Folder *folder, FolderItem *item)
1395 {
1396         gchar *path;
1397
1398         cm_return_val_if_fail(folder != NULL, -1);
1399         cm_return_val_if_fail(item != NULL, -1);
1400         cm_return_val_if_fail(item->path != NULL, -1);
1401
1402         path = folder_item_get_path(item);
1403         if (remove_dir_recursive(path) < 0) {
1404                 g_warning("can't remove directory '%s'", path);
1405                 g_free(path);
1406                 return -1;
1407         }
1408
1409         g_free(path);
1410         folder_item_remove(item);
1411         return 0;
1412 }
1413
1414 void nntp_disconnect_all(gboolean have_connectivity)
1415 {
1416         GList *list;
1417         gboolean short_timeout;
1418 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1419         GError *error;
1420 #endif
1421
1422 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1423         error = NULL;
1424         short_timeout = !networkmanager_is_online(&error);
1425         if(error) {
1426                 short_timeout = TRUE;
1427                 g_error_free(error);
1428         }
1429 #else
1430         short_timeout = TRUE;
1431 #endif
1432
1433         if(short_timeout)
1434                 nntp_main_set_timeout(1);
1435
1436         for (list = account_get_list(); list != NULL; list = list->next) {
1437                 PrefsAccount *account = list->data;
1438                 if (account->protocol == A_NNTP) {
1439                         RemoteFolder *folder = (RemoteFolder *)account->folder;
1440                         if (folder && folder->session) {
1441                                 NewsSession *session = (NewsSession *)folder->session;
1442                                 if (have_connectivity)
1443                                         nntp_threaded_disconnect(FOLDER(folder));
1444                                 SESSION(session)->state = SESSION_DISCONNECTED;
1445                                 SESSION(session)->sock = NULL;
1446                                 session_destroy(SESSION(session));
1447                                 folder->session = NULL;
1448                         }
1449                 }
1450         }
1451
1452         if(short_timeout)
1453                 nntp_main_set_timeout(prefs_common.io_timeout_secs);
1454 }
1455
1456 #else
1457 #include <glib.h>
1458 #include <glib/gi18n.h>
1459 #include <gtk/gtk.h>
1460 #include "folder.h"
1461 #include "alertpanel.h"
1462
1463 static FolderClass news_class;
1464
1465 static void warn_etpan(void)
1466 {
1467         static gboolean missing_news_warning = TRUE;
1468         if (missing_news_warning) {
1469                 missing_news_warning = FALSE;
1470                 alertpanel_error(
1471                         _("You have one or more News accounts "
1472                           "defined. However this version of "
1473                           "Claws Mail has been built without "
1474                           "News support; your News accounts are "
1475                           "disabled.\n\n"
1476                           "You probably need to "
1477                           "install libetpan and recompile "
1478                           "Claws Mail."));
1479         }
1480 }
1481 static Folder *news_folder_new(const gchar *name, const gchar *path)
1482 {
1483         warn_etpan();
1484         return NULL;
1485 }
1486 void news_group_list_free(GSList *group_list)
1487 {
1488         warn_etpan();
1489 }
1490 void news_remove_group_list_cache(Folder *folder)
1491 {
1492         warn_etpan();
1493 }
1494 int news_folder_locked(Folder *folder)
1495 {
1496         warn_etpan();
1497         return 0;
1498 }
1499 gint news_post(Folder *folder, const gchar *file)
1500 {
1501         warn_etpan();
1502         return -1;
1503 }
1504
1505 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1506 {
1507         warn_etpan();
1508         return -1;
1509 }
1510
1511 GSList *news_get_group_list(Folder *folder)
1512 {
1513         warn_etpan();
1514         return NULL;
1515 }
1516
1517
1518 FolderClass *news_get_class(void)
1519 {
1520         if (news_class.idstr == NULL) {
1521                 news_class.type = F_NEWS;
1522                 news_class.idstr = "news";
1523                 news_class.uistr = "News";
1524
1525                 /* Folder functions */
1526                 news_class.new_folder = news_folder_new;
1527         };
1528
1529         return &news_class;
1530 }
1531
1532 void nntp_disconnect_all(gboolean have_connectivity)
1533 {
1534 }
1535
1536 #endif