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 gchar   *server,
 109                                           gushort        port,
 110                                           const gchar   *userid,
 111                                           const gchar   *passwd,
 112                                           SSLType        ssl_type);
 113 #else
 114 static Session *news_session_new         (Folder        *folder,
 115                                           const gchar   *server,
 116                                           gushort        port,
 117                                           const gchar   *userid,
 118                                           const gchar   *passwd);
 119 #endif
 120
 121 static gint news_get_article             (Folder        *folder,
 122                                           gint           num,
 123                                           gchar         *filename);
 124
 125 static gint news_select_group            (Folder        *folder,
 126                                           const gchar   *group,
 127                                           gint          *num,
 128                                           gint          *first,
 129                                           gint          *last);
 130 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 131 static gint news_get_num_list                    (Folder        *folder,
 132                                           FolderItem    *item,
 133                                           GSList       **list,
 134                                           gboolean      *old_uids_valid);
 135 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 136                                           FolderItem    *item,
 137                                           gint           num);
 138 static GSList *news_get_msginfos                 (Folder        *folder,
 139                                           FolderItem    *item,
 140                                           GSList        *msgnum_list);
 141 static gboolean news_scan_required               (Folder        *folder,
 142                                           FolderItem    *item);
 143
 144 static gchar *news_folder_get_path       (Folder        *folder);
 145 static gchar *news_item_get_path                 (Folder        *folder,
 146                                           FolderItem    *item);
 147 static void news_synchronise             (FolderItem    *item, gint days);
 148 static int news_remove_msg               (Folder        *folder,
 149                                           FolderItem    *item,
 150                                           gint           msgnum);
 151 static gint news_rename_folder           (Folder *folder,
 152                                           FolderItem *item,
 153                                           const gchar *name);
 154 static gint news_remove_folder           (Folder        *folder,
 155                                           FolderItem    *item);
 156 static FolderClass news_class;
 157
 158 FolderClass *news_get_class(void)
 159 {
 160         if (news_class.idstr == NULL) {
 161                 news_class.type = F_NEWS;
 162                 news_class.idstr = "news";
 163                 news_class.uistr = "News";
 164                 news_class.supports_server_search = FALSE;
 165
 166                 /* Folder functions */
 167                 news_class.new_folder = news_folder_new;
 168                 news_class.destroy_folder = news_folder_destroy;
 169
 170                 /* FolderItem functions */
 171                 news_class.item_get_path = news_item_get_path;
 172                 news_class.get_num_list = news_get_num_list;
 173                 news_class.scan_required = news_scan_required;
 174                 news_class.rename_folder = news_rename_folder;
 175                 news_class.remove_folder = news_remove_folder;
 176
 177                 /* Message functions */
 178                 news_class.get_msginfo = news_get_msginfo;
 179                 news_class.get_msginfos = news_get_msginfos;
 180                 news_class.fetch_msg = news_fetch_msg;
 181                 news_class.synchronise = news_synchronise;
 182                 news_class.search_msgs = folder_item_search_msgs_local;
 183                 news_class.remove_msg = news_remove_msg;
 184                 news_class.remove_cached_msg = news_remove_cached_msg;
 185         };
 186
 187         return &news_class;
 188 }
 189
 190 guint nntp_folder_get_refcnt(Folder *folder)
 191 {
 192         return ((NewsFolder *)folder)->refcnt;
 193 }
 194
 195 void nntp_folder_ref(Folder *folder)
 196 {
 197         ((NewsFolder *)folder)->refcnt++;
 198 }
 199
 200 void nntp_folder_unref(Folder *folder)
 201 {
 202         if (((NewsFolder *)folder)->refcnt > 0)
 203                 ((NewsFolder *)folder)->refcnt--;
 204 }
 205
 206 static int news_remove_msg               (Folder        *folder,
 207                                           FolderItem    *item,
 208                                           gint           msgnum)
 209 {
 210         gchar *path, *filename;
 211
 212         cm_return_val_if_fail(folder != NULL, -1);
 213         cm_return_val_if_fail(item != NULL, -1);
 214
 215         path = folder_item_get_path(item);
 216         if (!is_dir_exist(path))
 217                 make_dir_hier(path);
 218
 219         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 220         g_free(path);
 221         claws_unlink(filename);
 222         g_free(filename);
 223         return 0;
 224 }
 225
 226 static void news_folder_lock(NewsFolder *folder)
 227 {
 228         folder->lock_count++;
 229 }
 230
 231 static void news_folder_unlock(NewsFolder *folder)
 232 {
 233         if (folder->lock_count > 0)
 234                 folder->lock_count--;
 235 }
 236
 237 int news_folder_locked(Folder *folder)
 238 {
 239         if (folder == NULL)
 240                 return 0;
 241
 242         return NEWS_FOLDER(folder)->lock_count;
 243 }
 244
 245 static Folder *news_folder_new(const gchar *name, const gchar *path)
 246 {
 247         Folder *folder;
 248
 249         folder = (Folder *)g_new0(NewsFolder, 1);
 250         folder->klass = &news_class;
 251         news_folder_init(folder, name, path);
 252
 253         return folder;
 254 }
 255
 256 static void news_folder_destroy(Folder *folder)
 257 {
 258         gchar *dir;
 259
 260         while (nntp_folder_get_refcnt(folder) > 0)
 261                 gtk_main_iteration();
 262
 263         dir = news_folder_get_path(folder);
 264         if (is_dir_exist(dir))
 265                 remove_dir_recursive(dir);
 266         g_free(dir);
 267
 268         nntp_done(folder);
 269         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 270 }
 271
 272 static void news_folder_init(Folder *folder, const gchar *name,
 273                              const gchar *path)
 274 {
 275         folder_remote_folder_init(folder, name, path);
 276 }
 277
 278 static void news_session_destroy(Session *session)
 279 {
 280         NewsSession *news_session = NEWS_SESSION(session);
 281
 282         cm_return_if_fail(session != NULL);
 283
 284         if (news_session->group)
 285                 g_free(news_session->group);
 286 }
 287
 288 static gboolean nntp_ping(gpointer data)
 289 {
 290         Session *session = (Session *)data;
 291         NewsSession *news_session = NEWS_SESSION(session);
 292         int r;
 293         struct tm lt;
 294
 295         if (session->state != SESSION_READY || news_folder_locked(news_session->folder))
 296                 return FALSE;
 297
 298         news_folder_lock(NEWS_FOLDER(news_session->folder));
 299
 300         if ((r = nntp_threaded_date(news_session->folder, &lt)) != NEWSNNTP_NO_ERROR) {
 301                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 302                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 303                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 304                               " disconnected.\n"),
 305                             news_session->folder->account->nntp_server,
 306                             news_session->folder->account->set_nntpport ?
 307                             news_session->folder->account->nntpport : NNTP_PORT);
 308                         REMOTE_FOLDER(news_session->folder)->session = NULL;
 309                         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 310                         session->state = SESSION_DISCONNECTED;
 311                         session->sock = NULL;
 312                         session_destroy(session);
 313                         return FALSE;
 314                 }
 315         }
 316
 317         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 318         session_set_access_time(session);
 319         return TRUE;
 320 }
 321
 322
 323 #ifdef USE_GNUTLS
 324 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 325                                  const gchar *userid, const gchar *passwd,
 326                                  SSLType ssl_type)
 327 #else
 328 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 329                                  const gchar *userid, const gchar *passwd)
 330 #endif
 331 {
 332         NewsSession *session;
 333         int r = 0;
 334         cm_return_val_if_fail(server != NULL, NULL);
 335
 336         log_message(LOG_PROTOCOL, _("Account '%s': Connecting to NNTP server: %s:%d...\n"),
 337                                     folder->account->account_name, server, port);
 338
 339         session = g_new0(NewsSession, 1);
 340         session_init(SESSION(session), folder->account, FALSE);
 341         SESSION(session)->type             = SESSION_NEWS;
 342         SESSION(session)->server           = g_strdup(server);
 343         SESSION(session)->port             = port;
 344         SESSION(session)->sock             = NULL;
 345         SESSION(session)->destroy          = news_session_destroy;
 346
 347         nntp_init(folder);
 348
 349 #ifdef USE_GNUTLS
 350         if (ssl_type != SSL_NONE)
 351                 r = nntp_threaded_connect_ssl(folder, server, port);
 352         else
 353 #endif
 354                 r = nntp_threaded_connect(folder, server, port);
 355
 356         if (r != NEWSNNTP_NO_ERROR) {
 357                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d...\n"), server, port);
 358                 session_destroy(SESSION(session));
 359                 return NULL;
 360         }
 361
 362         session->folder = folder;
 363
 364         return SESSION(session);
 365 }
 366
 367 static Session *news_session_new_for_folder(Folder *folder)
 368 {
 369         Session *session;
 370         PrefsAccount *ac;
 371         const gchar *userid = NULL;
 372         gchar *passwd = NULL;
 373         gushort port;
 374         int r;
 375
 376         cm_return_val_if_fail(folder != NULL, NULL);
 377         cm_return_val_if_fail(folder->account != NULL, NULL);
 378
 379         ac = folder->account;
 380
 381 #ifdef USE_GNUTLS
 382         port = ac->set_nntpport ? ac->nntpport
 383                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 384         session = news_session_new(folder, ac->nntp_server, port, userid, passwd,
 385                                    ac->ssl_nntp);
 386 #else
 387         if (ac->ssl_nntp != SSL_NONE) {
 388                 if (alertpanel_full(_("Insecure connection"),
 389                         _("This connection is configured to be secured "
 390                           "using SSL/TLS, but SSL/TLS is not available "
 391                           "in this build of Claws Mail. \n\n"
 392                           "Do you want to continue connecting to this "
 393                           "server? The communication would not be "
 394                           "secure."),
 395                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 396                           NULL, FALSE, NULL, ALERT_WARNING,
 397                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 398                         return NULL;
 399         }
 400         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 401         session = news_session_new(folder, ac->nntp_server, port, userid, passwd);
 402 #endif
 403
 404         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 405                 userid = ac->userid;
 406                 if (password_get(userid, ac->nntp_server, "nntp", port, &passwd)) {
 407                         /* NOP */;
 408                 } else if ((passwd = passwd_store_get_account(ac->account_id,
 409                                         PWS_ACCOUNT_RECV)) == NULL) {
 410                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 411                                                                   userid,
 412                                                                   &(ac->session_passwd));
 413                 }
 414         }
 415
 416         if (session != NULL)
 417                 r = nntp_threaded_mode_reader(folder);
 418         else
 419                 r = NEWSNNTP_ERROR_CONNECTION_REFUSED;
 420
 421         if (r != NEWSNNTP_NO_ERROR) {
 422             if (r == NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 423                 /*
 424                    FIX ME when libetpan implements 480 to indicate authorization
 425                    is required to use this capability. Libetpan treats a 480 as a
 426                    381 which is clearly wrong.
 427                    RFC 4643 section 2.
 428                    Response code 480
 429                    Generic response
 430                    Meaning: command unavailable until the client
 431                    has authenticated itself.
 432                 */
 433                 /* if the server does not advertise the capability MODE-READER,
 434                    we normally should not send MODE READER. However this can't
 435                    hurt: a transit-only server returns 502 and closes the cnx.
 436                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 437                 */
 438                 log_error(LOG_PROTOCOL, _("Libetpan does not support return code 480 "
 439                 "so for now we choose to continue\n"));
 440             }
 441             else if (r == NEWSNNTP_ERROR_UNEXPECTED_RESPONSE) {
 442                 /* if the server does not advertise the capability MODE-READER,
 443                    we normally should not send MODE READER. However this can't
 444                    hurt: a transit-only server returns 502 and closes the cnx.
 445                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 446                 */
 447                 log_error(LOG_PROTOCOL, _("Mode reader failed, continuing nevertheless\n"));
 448             }
 449             else {
 450                 /* An error state bail out */
 451                 log_error(LOG_PROTOCOL, _("Error creating session with %s:%d\n"), ac->nntp_server, port);
 452                 if (session != NULL)
 453                         session_destroy(SESSION(session));
 454                 g_free(passwd);
 455                 if (ac->session_passwd) {
 456                         g_free(ac->session_passwd);
 457                         ac->session_passwd = NULL;
 458                 }
 459                 return NULL;
 460             }
 461         }
 462
 463         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 464                 if (nntp_threaded_login(folder, userid, passwd) !=
 465                         NEWSNNTP_NO_ERROR) {
 466                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d...\n"), ac->nntp_server, port);
 467                         session_destroy(SESSION(session));
 468                         g_free(passwd);
 469                         if (ac->session_passwd) {
 470                                 g_free(ac->session_passwd);
 471                                 ac->session_passwd = NULL;
 472                         }
 473                         return NULL;
 474                 }
 475         }
 476         g_free(passwd);
 477
 478         return session;
 479 }
 480
 481 static NewsSession *news_session_get(Folder *folder)
 482 {
 483         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 484
 485         cm_return_val_if_fail(folder != NULL, NULL);
 486         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 487         cm_return_val_if_fail(folder->account != NULL, NULL);
 488
 489         if (prefs_common.work_offline &&
 490             !inc_offline_should_override(FALSE,
 491                 _("Claws Mail needs network access in order "
 492                   "to access the News server."))) {
 493                 return NULL;
 494         }
 495
 496         if (!rfolder->session) {
 497                 rfolder->session = news_session_new_for_folder(folder);
 498                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 499                 return NEWS_SESSION(rfolder->session);
 500         }
 501
 502         /* Handle port change (also ssl/nossl change) without needing to
 503          * restart application. */
 504         if (rfolder->session->port != folder->account->nntpport) {
 505                 session_destroy(rfolder->session);
 506                 rfolder->session = news_session_new_for_folder(folder);
 507                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 508                 goto newsession;
 509         }
 510
 511         if (time(NULL) - rfolder->session->last_access_time <
 512                 SESSION_TIMEOUT_INTERVAL) {
 513                 return NEWS_SESSION(rfolder->session);
 514         }
 515
 516         if (!nntp_ping(rfolder->session)) {
 517                 rfolder->session = news_session_new_for_folder(folder);
 518                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 519         }
 520
 521 newsession:
 522         if (rfolder->session)
 523                 session_set_access_time(rfolder->session);
 524
 525         return NEWS_SESSION(rfolder->session);
 526 }
 527
 528 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 529 {
 530         gchar *path, *filename;
 531
 532         path = folder_item_get_path(item);
 533
 534         if (!is_dir_exist(path)) {
 535                 g_free(path);
 536                 return;
 537         }
 538
 539         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 540         g_free(path);
 541
 542         if (is_file_exist(filename)) {
 543                 claws_unlink(filename);
 544         }
 545         g_free(filename);
 546 }
 547
 548 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 549 {
 550         gchar *path, *filename;
 551         NewsSession *session;
 552         gint ok;
 553
 554         cm_return_val_if_fail(folder != NULL, NULL);
 555         cm_return_val_if_fail(item != NULL, NULL);
 556
 557         path = folder_item_get_path(item);
 558         if (!is_dir_exist(path))
 559                 make_dir_hier(path);
 560         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 561         g_free(path);
 562
 563         if (is_file_exist(filename)) {
 564                 debug_print("article %d has been already cached.\n", num);
 565                 return filename;
 566         }
 567
 568         session = news_session_get(folder);
 569         if (!session) {
 570                 g_free(filename);
 571                 return NULL;
 572         }
 573
 574         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 575         if (ok != NEWSNNTP_NO_ERROR) {
 576                 if (ok == NEWSNNTP_ERROR_STREAM) {
 577                         session_destroy(SESSION(session));
 578                         REMOTE_FOLDER(folder)->session = NULL;
 579                 }
 580                 g_free(filename);
 581                 return NULL;
 582         }
 583
 584         debug_print("getting article %d...\n", num);
 585         ok = news_get_article(folder,
 586                               num, filename);
 587         if (ok != NEWSNNTP_NO_ERROR) {
 588                 g_warning("can't read article %d", num);
 589                 if (ok == NEWSNNTP_ERROR_STREAM) {
 590                         session_destroy(SESSION(session));
 591                         REMOTE_FOLDER(folder)->session = NULL;
 592                 }
 593                 g_free(filename);
 594                 return NULL;
 595         }
 596         GTK_EVENTS_FLUSH();
 597         return filename;
 598 }
 599
 600 static NewsGroupInfo *news_group_info_new(const gchar *name,
 601                                           gint first, gint last, gchar type)
 602 {
 603         NewsGroupInfo *ginfo;
 604
 605         ginfo = g_new(NewsGroupInfo, 1);
 606         ginfo->name = g_strdup(name);
 607         ginfo->first = first;
 608         ginfo->last = last;
 609         ginfo->type = type;
 610
 611         return ginfo;
 612 }
 613
 614 static void news_group_info_free(NewsGroupInfo *ginfo)
 615 {
 616         g_free(ginfo->name);
 617         g_free(ginfo);
 618 }
 619
 620 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 621                                     NewsGroupInfo *ginfo2)
 622 {
 623         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 624 }
 625
 626 GSList *news_get_group_list(Folder *folder)
 627 {
 628         gchar *path, *filename;
 629         FILE *fp;
 630         GSList *list = NULL;
 631         GSList *last = NULL;
 632         gchar buf[BUFFSIZE];
 633
 634         cm_return_val_if_fail(folder != NULL, NULL);
 635         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 636
 637         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 638         if (!is_dir_exist(path))
 639                 make_dir_hier(path);
 640         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 641         g_free(path);
 642
 643         if ((fp = g_fopen(filename, "rb")) == NULL) {
 644                 NewsSession *session;
 645                 gint ok;
 646                 clist *grouplist = NULL;
 647                 clistiter *cur;
 648                 fp = g_fopen(filename, "wb");
 649
 650                 if (!fp) {
 651                         g_free(filename);
 652                         return NULL;
 653                 }
 654                 session = news_session_get(folder);
 655                 if (!session) {
 656                         fclose(fp);
 657                         g_free(filename);
 658                         return NULL;
 659                 }
 660
 661                 ok = nntp_threaded_list(folder, &grouplist);
 662
 663                 if (ok != NEWSNNTP_NO_ERROR) {
 664                         if (ok == NEWSNNTP_ERROR_STREAM) {
 665                                 session_destroy(SESSION(session));
 666                                 REMOTE_FOLDER(folder)->session = NULL;
 667                         }
 668                         fclose(fp);
 669                         g_free(filename);
 670                         return NULL;
 671                 }
 672
 673                 if (grouplist) {
 674                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 675                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 676                                                                         clist_content(cur);
 677                                 if (fprintf(fp, "%s %d %d %c\n",
 678                                         info->grp_name,
 679                                         info->grp_last,
 680                                         info->grp_first,
 681                                         info->grp_type) < 0) {
 682                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 683                                         session_destroy(SESSION(session));
 684                                         REMOTE_FOLDER(folder)->session = NULL;
 685                                         fclose(fp);
 686                                         g_free(filename);
 687                                         newsnntp_list_free(grouplist);
 688                                         return NULL;
 689                                 }
 690                         }
 691                         newsnntp_list_free(grouplist);
 692                 }
 693                 if (fclose(fp) == EOF) {
 694                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 695                         session_destroy(SESSION(session));
 696                         REMOTE_FOLDER(folder)->session = NULL;
 697                         g_free(filename);
 698                         return NULL;
 699                 }
 700
 701                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 702                         FILE_OP_ERROR(filename, "fopen");
 703                         g_free(filename);
 704                         return NULL;
 705                 }
 706         }
 707
 708         while (fgets(buf, sizeof(buf), fp) != NULL) {
 709                 gchar *p = buf;
 710                 gchar *name;
 711                 gint last_num;
 712                 gint first_num;
 713                 gchar type;
 714                 NewsGroupInfo *ginfo;
 715
 716                 p = strchr(p, ' ');
 717                 if (!p) continue;
 718                 *p = '\0';
 719                 p++;
 720                 name = buf;
 721
 722                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 723                         continue;
 724
 725                 ginfo = news_group_info_new(name, first_num, last_num, type);
 726
 727                 if (!last)
 728                         last = list = g_slist_append(NULL, ginfo);
 729                 else {
 730                         last = g_slist_append(last, ginfo);
 731                         last = last->next;
 732                 }
 733         }
 734
 735         fclose(fp);
 736         g_free(filename);
 737
 738         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 739
 740         return list;
 741 }
 742
 743 void news_group_list_free(GSList *group_list)
 744 {
 745         GSList *cur;
 746
 747         if (!group_list) return;
 748
 749         for (cur = group_list; cur != NULL; cur = cur->next)
 750                 news_group_info_free((NewsGroupInfo *)cur->data);
 751         g_slist_free(group_list);
 752 }
 753
 754 void news_remove_group_list_cache(Folder *folder)
 755 {
 756         gchar *path, *filename;
 757
 758         cm_return_if_fail(folder != NULL);
 759         cm_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 760
 761         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 762         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 763         g_free(path);
 764
 765         if (is_file_exist(filename)) {
 766                 if (claws_unlink(filename) < 0)
 767                         FILE_OP_ERROR(filename, "remove");
 768         }
 769         g_free(filename);
 770 }
 771
 772 gint news_post(Folder *folder, const gchar *file)
 773 {
 774         gint ok;
 775         char *contents = file_read_to_str_no_recode(file);
 776         NewsSession *session;
 777
 778         cm_return_val_if_fail(folder != NULL, -1);
 779         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 780         cm_return_val_if_fail(contents != NULL, -1);
 781
 782         session = news_session_get(folder);
 783         if (!session)  {
 784                 g_free(contents);
 785                 return -1;
 786         }
 787
 788         ok = nntp_threaded_post(folder, contents, strlen(contents));
 789
 790         g_free(contents);
 791
 792         if (ok == NEWSNNTP_ERROR_STREAM) {
 793                 session_destroy(SESSION(session));
 794                 REMOTE_FOLDER(folder)->session = NULL;
 795         }
 796
 797         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 798 }
 799
 800 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 801 {
 802         size_t len;
 803         char *result = NULL;
 804         int r;
 805
 806         r = nntp_threaded_article(folder, num, &result, &len);
 807
 808         if (r == NEWSNNTP_NO_ERROR) {
 809                 if (str_write_to_file(result, filename) < 0) {
 810                         mmap_string_unref(result);
 811                         return -1;
 812                 }
 813                 mmap_string_unref(result);
 814         }
 815
 816         return r;
 817 }
 818
 819 /**
 820  * news_select_group:
 821  * @session: Active NNTP session.
 822  * @group: Newsgroup name.
 823  * @num: Estimated number of articles.
 824  * @first: First article number.
 825  * @last: Last article number.
 826  *
 827  * Select newsgroup @group with the GROUP command if it is not already
 828  * selected in @session, or article numbers need to be returned.
 829  *
 830  * Return value: NNTP result code.
 831  **/
 832 static gint news_select_group(Folder *folder, const gchar *group,
 833                               gint *num, gint *first, gint *last)
 834 {
 835         gint ok;
 836         gint num_, first_, last_;
 837         struct newsnntp_group_info *info = NULL;
 838         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 839
 840         cm_return_val_if_fail(session != NULL, -1);
 841
 842         if (!num || !first || !last) {
 843                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 844                         return NEWSNNTP_NO_ERROR;
 845                 num = &num_;
 846                 first = &first_;
 847                 last = &last_;
 848         }
 849
 850         g_free(session->group);
 851         session->group = NULL;
 852
 853         ok = nntp_threaded_group(folder, group, &info);
 854
 855         if (ok == NEWSNNTP_NO_ERROR && info) {
 856                 session->group = g_strdup(group);
 857                 *num = info->grp_first;
 858                 *first = info->grp_first;
 859                 *last = info->grp_last;
 860                 newsnntp_group_free(info);
 861         } else {
 862                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 863         }
 864         return ok;
 865 }
 866
 867 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 868 {
 869         MsgInfo *msginfo;
 870
 871         /* set MsgInfo */
 872         msginfo = procmsg_msginfo_new();
 873         msginfo->msgnum = item->ovr_article;
 874         msginfo->size = item->ovr_size;
 875
 876         msginfo->date = g_strdup(item->ovr_date);
 877         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 878
 879         msginfo->from = conv_unmime_header(item->ovr_author, NULL, TRUE);
 880         msginfo->fromname = procheader_get_fromname(msginfo->from);
 881
 882         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL, TRUE);
 883
 884         remove_return(msginfo->from);
 885         remove_return(msginfo->fromname);
 886         remove_return(msginfo->subject);
 887
 888         if (item->ovr_message_id) {
 889                 gchar *tmp = g_strdup(item->ovr_message_id);
 890                 extract_parenthesis(tmp, '<', '>');
 891                 remove_space(tmp);
 892                 if (*tmp != '\0')
 893                         msginfo->msgid = g_strdup(tmp);
 894                 g_free(tmp);
 895         }
 896
 897         /* FIXME: this is a quick fix; references' meaning was changed
 898          * into having the actual list of references in the References: header.
 899          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 900          * their things properly. */
 901         if (item->ovr_references && *(item->ovr_references)) {
 902                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 903                 guint i = 0;
 904                 char *tmp;
 905                 char *p;
 906                 while (ref_tokens[i]) {
 907                         gchar *cur_ref = ref_tokens[i];
 908                         msginfo->references = references_list_append(msginfo->references,
 909                                         cur_ref);
 910                         i++;
 911                 }
 912                 g_strfreev(ref_tokens);
 913
 914                 tmp = g_strdup(item->ovr_references);
 915                 eliminate_parenthesis(tmp, '(', ')');
 916                 if ((p = strrchr(tmp, '<')) != NULL) {
 917                         extract_parenthesis(p, '<', '>');
 918                         remove_space(p);
 919                         if (*p != '\0')
 920                                 msginfo->inreplyto = g_strdup(p);
 921                 }
 922                 g_free(tmp);
 923         }
 924
 925         return msginfo;
 926 }
 927
 928 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 929 {
 930         gchar * tmp;
 931         FILE * tmpfp;
 932         gchar buf[BUFFSIZE];
 933
 934         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 935                               G_DIR_SEPARATOR, msginfo);
 936         if (tmp == NULL)
 937                 return -1;
 938
 939         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 940                 FILE_OP_ERROR(tmp, "fopen");
 941                 return -1;
 942         }
 943         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 944                 FILE_OP_ERROR(tmp, "chmod");
 945                 g_warning("can't change file mode");
 946         }
 947
 948         if (prefs_common.hide_timezone)
 949                 get_rfc822_date_hide_tz(buf, sizeof(buf));
 950         else
 951                 get_rfc822_date(buf, sizeof(buf));
 952         if (fprintf(tmpfp, "From: %s\r\n"
 953                        "Newsgroups: %s\r\n"
 954                        "Subject: cmsg cancel <%s>\r\n"
 955                        "Control: cancel <%s>\r\n"
 956                        "Approved: %s\r\n"
 957                        "X-Cancelled-by: %s\r\n"
 958                        "Date: %s\r\n"
 959                        "\r\n"
 960                        "removed with Claws Mail\r\n",
 961                        msginfo->from,
 962                        msginfo->newsgroups,
 963                        msginfo->msgid,
 964                        msginfo->msgid,
 965                        msginfo->from,
 966                        msginfo->from,
 967                        buf) < 0) {
 968                 FILE_OP_ERROR(tmp, "fprintf");
 969                 fclose(tmpfp);
 970                 claws_unlink(tmp);
 971                 g_free(tmp);
 972                 return -1;
 973         }
 974
 975         if (fclose(tmpfp) == EOF) {
 976                 FILE_OP_ERROR(tmp, "fclose");
 977                 claws_unlink(tmp);
 978                 g_free(tmp);
 979                 return -1;
 980         }
 981
 982         news_post(folder, tmp);
 983         claws_unlink(tmp);
 984
 985         g_free(tmp);
 986
 987         return 0;
 988 }
 989
 990 static gchar *news_folder_get_path(Folder *folder)
 991 {
 992         gchar *folder_path;
 993
 994         cm_return_val_if_fail(folder->account != NULL, NULL);
 995
 996         folder_path = g_strconcat(get_news_cache_dir(),
 997                                   G_DIR_SEPARATOR_S,
 998                                   folder->account->nntp_server,
 999                                   NULL);
1000         return folder_path;
1001 }
1002
1003 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
1004 {
1005         gchar *folder_path, *path;
1006
1007         cm_return_val_if_fail(folder != NULL, NULL);
1008         cm_return_val_if_fail(item != NULL, NULL);
1009         folder_path = news_folder_get_path(folder);
1010
1011         cm_return_val_if_fail(folder_path != NULL, NULL);
1012         if (g_path_is_absolute(folder_path)) {
1013                 if (item->path)
1014                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
1015                                            item->path, NULL);
1016                 else
1017                         path = g_strdup(folder_path);
1018         } else {
1019                 if (item->path)
1020                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1021                                            folder_path, G_DIR_SEPARATOR_S,
1022                                            item->path, NULL);
1023                 else
1024                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1025                                            folder_path, NULL);
1026         }
1027         g_free(folder_path);
1028 #ifdef G_OS_WIN32
1029         while (strchr(path, '/'))
1030                 *strchr(path, '/') = '\\';
1031 #endif
1032         return path;
1033 }
1034
1035 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
1036 {
1037         NewsSession *session;
1038         gint i, ok, num, first, last, nummsgs = 0;
1039         gchar *dir;
1040
1041         cm_return_val_if_fail(item != NULL, -1);
1042         cm_return_val_if_fail(item->folder != NULL, -1);
1043         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
1044
1045         session = news_session_get(folder);
1046         cm_return_val_if_fail(session != NULL, -1);
1047
1048         *old_uids_valid = TRUE;
1049
1050         news_folder_lock(NEWS_FOLDER(item->folder));
1051
1052         ok = news_select_group(folder, item->path, &num, &first, &last);
1053         if (ok != NEWSNNTP_NO_ERROR) {
1054                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1055                 news_folder_unlock(NEWS_FOLDER(item->folder));
1056                 return -1;
1057         }
1058
1059         dir = news_folder_get_path(folder);
1060         if (num <= 0)
1061                 remove_all_numbered_files(dir);
1062         else if (last < first)
1063                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
1064                             first, last);
1065         else {
1066                 for (i = first; i <= last; i++) {
1067                         *msgnum_list = g_slist_prepend(*msgnum_list,
1068                                                        GINT_TO_POINTER(i));
1069                         nummsgs++;
1070                 }
1071                 debug_print("removing old messages from %d to %d in %s\n",
1072                             first, last, dir);
1073                 remove_numbered_files(dir, 1, first - 1);
1074         }
1075         g_free(dir);
1076         news_folder_unlock(NEWS_FOLDER(item->folder));
1077         return nummsgs;
1078 }
1079
1080 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1081 {
1082         msginfo->flags.tmp_flags = 0;
1083         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1084                 if (item->folder->newsart &&
1085                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1086                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1087
1088                 } else {
1089                         if (!item->folder->newsart)
1090                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1091                         g_hash_table_insert(item->folder->newsart,
1092                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1093                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1094                 }
1095         } else {
1096                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1097         }
1098 }
1099
1100 static void news_get_extra_fields(NewsSession *session, FolderItem *item, GSList *msglist)
1101 {
1102         MsgInfo *msginfo = NULL;
1103         gint ok;
1104         GSList *cur;
1105         clist *hdrlist = NULL;
1106         clistiter *hdr;
1107         gint first = -1, last = -1;
1108         GHashTable *hash_table;
1109
1110         cm_return_if_fail(session != NULL);
1111         cm_return_if_fail(item != NULL);
1112         cm_return_if_fail(item->folder != NULL);
1113         cm_return_if_fail(FOLDER_CLASS(item->folder) == &news_class);
1114
1115         news_folder_lock(NEWS_FOLDER(item->folder));
1116
1117         hash_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1118
1119         for (cur = msglist; cur; cur = cur->next) {
1120                 msginfo = (MsgInfo *)cur->data;
1121                 if (first == -1 || msginfo->msgnum < first)
1122                         first = msginfo->msgnum;
1123                 if (last == -1 || msginfo->msgnum > last)
1124                         last = msginfo->msgnum;
1125                 g_hash_table_insert(hash_table,
1126                                 GINT_TO_POINTER(msginfo->msgnum), msginfo);
1127         }
1128
1129 /* Newsgroups */
1130         ok = nntp_threaded_xhdr(item->folder, "newsgroups", first, last, &hdrlist);
1131
1132         if (ok != NEWSNNTP_NO_ERROR) {
1133                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1134                 if (ok == NEWSNNTP_ERROR_STREAM) {
1135                         session_destroy(SESSION(session));
1136                         REMOTE_FOLDER(item->folder)->session = NULL;
1137                 }
1138                 news_folder_unlock(NEWS_FOLDER(item->folder));
1139                 return;
1140         }
1141
1142         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1143                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1144                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1145                 if (msginfo) {
1146                         if (msginfo->newsgroups)
1147                                 g_free(msginfo->newsgroups);
1148                         msginfo->newsgroups = g_strdup(hdrval->hdr_value);
1149                 }
1150         }
1151         newsnntp_xhdr_free(hdrlist);
1152
1153 /* To */
1154         ok = nntp_threaded_xhdr(item->folder, "to", first, last, &hdrlist);
1155
1156         if (ok != NEWSNNTP_NO_ERROR) {
1157                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1158                 if (ok == NEWSNNTP_ERROR_STREAM) {
1159                         session_destroy(SESSION(session));
1160                         REMOTE_FOLDER(item->folder)->session = NULL;
1161                 }
1162                 news_folder_unlock(NEWS_FOLDER(item->folder));
1163                 return;
1164         }
1165
1166         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1167                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1168                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1169                 if (msginfo) {
1170                         if (msginfo->to)
1171                                 g_free(msginfo->to);
1172                         msginfo->to = g_strdup(hdrval->hdr_value);
1173                 }
1174         }
1175         newsnntp_xhdr_free(hdrlist);
1176
1177 /* Cc */
1178         ok = nntp_threaded_xhdr(item->folder, "cc", first, last, &hdrlist);
1179
1180         if (ok != NEWSNNTP_NO_ERROR) {
1181                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1182                 if (ok == NEWSNNTP_ERROR_STREAM) {
1183                         session_destroy(SESSION(session));
1184                         REMOTE_FOLDER(item->folder)->session = NULL;
1185                 }
1186                 news_folder_unlock(NEWS_FOLDER(item->folder));
1187                 return;
1188         }
1189
1190         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1191                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1192                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1193                 if (msginfo) {
1194                         if (msginfo->cc)
1195                                 g_free(msginfo->cc);
1196                         msginfo->cc = g_strdup(hdrval->hdr_value);
1197                 }
1198         }
1199         newsnntp_xhdr_free(hdrlist);
1200
1201
1202         g_hash_table_destroy(hash_table);
1203         news_folder_unlock(NEWS_FOLDER(item->folder));
1204 }
1205
1206 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1207 {
1208         GSList *newlist = NULL;
1209         GSList *llast = NULL;
1210         MsgInfo *msginfo;
1211         gint ok;
1212         clist *msglist = NULL;
1213         clistiter *cur;
1214         cm_return_val_if_fail(session != NULL, NULL);
1215         cm_return_val_if_fail(item != NULL, NULL);
1216
1217         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1218                     begin, end, item->path);
1219
1220         news_folder_lock(NEWS_FOLDER(item->folder));
1221
1222         ok = news_select_group(item->folder, item->path, NULL, NULL, NULL);
1223         if (ok != NEWSNNTP_NO_ERROR) {
1224                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1225                 news_folder_unlock(NEWS_FOLDER(item->folder));
1226                 return NULL;
1227         }
1228
1229         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1230
1231         if (ok != NEWSNNTP_NO_ERROR) {
1232                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1233                 if (ok == NEWSNNTP_ERROR_STREAM) {
1234                         session_destroy(SESSION(session));
1235                         REMOTE_FOLDER(item->folder)->session = NULL;
1236                 }
1237                 news_folder_unlock(NEWS_FOLDER(item->folder));
1238                 return NULL;
1239         }
1240
1241         if (msglist) {
1242                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1243                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1244                         msginfo = news_parse_xover(ritem);
1245
1246                         if (!msginfo) {
1247                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1248                                 continue;
1249                         }
1250
1251                         msginfo->folder = item;
1252                         news_set_msg_flags(item, msginfo);
1253                         msginfo->flags.tmp_flags |= MSG_NEWS;
1254
1255                         if (!newlist)
1256                                 llast = newlist = g_slist_append(newlist, msginfo);
1257                         else {
1258                                 llast = g_slist_append(llast, msginfo);
1259                                 llast = llast->next;
1260                         }
1261                 }
1262                 newsnntp_xover_resp_list_free(msglist);
1263         }
1264
1265         news_folder_unlock(NEWS_FOLDER(item->folder));
1266
1267         session_set_access_time(SESSION(session));
1268
1269         news_get_extra_fields(session, item, newlist);
1270
1271         return newlist;
1272 }
1273
1274 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1275 {
1276         GSList *msglist = NULL;
1277         NewsSession *session;
1278         MsgInfo *msginfo = NULL;
1279
1280         session = news_session_get(folder);
1281         cm_return_val_if_fail(session != NULL, NULL);
1282         cm_return_val_if_fail(item != NULL, NULL);
1283         cm_return_val_if_fail(item->folder != NULL, NULL);
1284         cm_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1285
1286         msglist = news_get_msginfos_for_range(session, item, num, num);
1287
1288         if (msglist)
1289                 msginfo = msglist->data;
1290
1291         g_slist_free(msglist);
1292
1293         return msginfo;
1294 }
1295
1296 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1297 {
1298         NewsSession *session;
1299         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1300         guint first, last, next;
1301
1302         cm_return_val_if_fail(folder != NULL, NULL);
1303         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1304         cm_return_val_if_fail(msgnum_list != NULL, NULL);
1305         cm_return_val_if_fail(item != NULL, NULL);
1306
1307         session = news_session_get(folder);
1308         cm_return_val_if_fail(session != NULL, NULL);
1309
1310         tmp_msgnum_list = g_slist_copy(msgnum_list);
1311         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1312
1313         progressindicator_start(PROGRESS_TYPE_NETWORK);
1314
1315         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1316         last = first;
1317
1318         news_folder_lock(NEWS_FOLDER(item->folder));
1319
1320         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1321                 next = GPOINTER_TO_INT(elem->data);
1322                 if(next != (last + 1)) {
1323                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1324                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1325                         first = next;
1326                 }
1327                 last = next;
1328         }
1329
1330         news_folder_unlock(NEWS_FOLDER(item->folder));
1331
1332         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1333         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1334
1335         g_slist_free(tmp_msgnum_list);
1336
1337         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1338
1339         return msginfo_list;
1340 }
1341
1342 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1343 {
1344         return TRUE;
1345 }
1346
1347 void news_synchronise(FolderItem *item, gint days)
1348 {
1349         news_gtk_synchronise(item, days);
1350 }
1351
1352 static gint news_rename_folder(Folder *folder, FolderItem *item,
1353                                 const gchar *name)
1354 {
1355         gchar *path;
1356
1357         cm_return_val_if_fail(folder != NULL, -1);
1358         cm_return_val_if_fail(item != NULL, -1);
1359         cm_return_val_if_fail(item->path != NULL, -1);
1360         cm_return_val_if_fail(name != NULL, -1);
1361
1362         path = folder_item_get_path(item);
1363         if (!is_dir_exist(path))
1364                 make_dir_hier(path);
1365
1366         g_free(item->name);
1367         item->name = g_strdup(name);
1368
1369         return 0;
1370 }
1371
1372 static gint news_remove_folder(Folder *folder, FolderItem *item)
1373 {
1374         gchar *path;
1375
1376         cm_return_val_if_fail(folder != NULL, -1);
1377         cm_return_val_if_fail(item != NULL, -1);
1378         cm_return_val_if_fail(item->path != NULL, -1);
1379
1380         path = folder_item_get_path(item);
1381         if (remove_dir_recursive(path) < 0) {
1382                 g_warning("can't remove directory '%s'", path);
1383                 g_free(path);
1384                 return -1;
1385         }
1386
1387         g_free(path);
1388         folder_item_remove(item);
1389         return 0;
1390 }
1391
1392 void nntp_disconnect_all(gboolean have_connectivity)
1393 {
1394         GList *list;
1395         gboolean short_timeout;
1396 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1397         GError *error;
1398 #endif
1399
1400 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1401         error = NULL;
1402         short_timeout = !networkmanager_is_online(&error);
1403         if(error) {
1404                 short_timeout = TRUE;
1405                 g_error_free(error);
1406         }
1407 #else
1408         short_timeout = TRUE;
1409 #endif
1410
1411         if(short_timeout)
1412                 nntp_main_set_timeout(1);
1413
1414         for (list = account_get_list(); list != NULL; list = list->next) {
1415                 PrefsAccount *account = list->data;
1416                 if (account->protocol == A_NNTP) {
1417                         RemoteFolder *folder = (RemoteFolder *)account->folder;
1418                         if (folder && folder->session) {
1419                                 NewsSession *session = (NewsSession *)folder->session;
1420                                 if (have_connectivity)
1421                                         nntp_threaded_disconnect(FOLDER(folder));
1422                                 SESSION(session)->state = SESSION_DISCONNECTED;
1423                                 SESSION(session)->sock = NULL;
1424                                 session_destroy(SESSION(session));
1425                                 folder->session = NULL;
1426                         }
1427                 }
1428         }
1429
1430         if(short_timeout)
1431                 nntp_main_set_timeout(prefs_common.io_timeout_secs);
1432 }
1433
1434 #else
1435 #include <glib.h>
1436 #include <glib/gi18n.h>
1437 #include <gtk/gtk.h>
1438 #include "folder.h"
1439 #include "alertpanel.h"
1440
1441 static FolderClass news_class;
1442
1443 static void warn_etpan(void)
1444 {
1445         static gboolean missing_news_warning = TRUE;
1446         if (missing_news_warning) {
1447                 missing_news_warning = FALSE;
1448                 alertpanel_error(
1449                         _("You have one or more News accounts "
1450                           "defined. However this version of "
1451                           "Claws Mail has been built without "
1452                           "News support; your News accounts are "
1453                           "disabled.\n\n"
1454                           "You probably need to "
1455                           "install libetpan and recompile "
1456                           "Claws Mail."));
1457         }
1458 }
1459 static Folder *news_folder_new(const gchar *name, const gchar *path)
1460 {
1461         warn_etpan();
1462         return NULL;
1463 }
1464 void news_group_list_free(GSList *group_list)
1465 {
1466         warn_etpan();
1467 }
1468 void news_remove_group_list_cache(Folder *folder)
1469 {
1470         warn_etpan();
1471 }
1472 int news_folder_locked(Folder *folder)
1473 {
1474         warn_etpan();
1475         return 0;
1476 }
1477 gint news_post(Folder *folder, const gchar *file)
1478 {
1479         warn_etpan();
1480         return -1;
1481 }
1482
1483 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1484 {
1485         warn_etpan();
1486         return -1;
1487 }
1488
1489 GSList *news_get_group_list(Folder *folder)
1490 {
1491         warn_etpan();
1492         return NULL;
1493 }
1494
1495
1496 FolderClass *news_get_class(void)
1497 {
1498         if (news_class.idstr == NULL) {
1499                 news_class.type = F_NEWS;
1500                 news_class.idstr = "news";
1501                 news_class.uistr = "News";
1502
1503                 /* Folder functions */
1504                 news_class.new_folder = news_folder_new;
1505         };
1506
1507         return &news_class;
1508 }
1509
1510 void nntp_disconnect_all(gboolean have_connectivity)
1511 {
1512 }
1513
1514 #endif