src/news.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2021 the Claws Mail team and Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 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 #include "file-utils.h"
  66
  67 #define NNTP_PORT       119
  68 #ifdef USE_GNUTLS
  69 #define NNTPS_PORT      563
  70 #endif
  71
  72 typedef struct _NewsFolder      NewsFolder;
  73 typedef struct _NewsSession     NewsSession;
  74
  75 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  76 #define NEWS_SESSION(obj)       ((NewsSession *)obj)
  77
  78 struct _NewsFolder
  79 {
  80         RemoteFolder rfolder;
  81
  82         gboolean use_auth;
  83         gboolean lock_count;
  84         guint refcnt;
  85 };
  86
  87 struct _NewsSession
  88 {
  89         Session session;
  90         Folder *folder;
  91         gchar *group;
  92 };
  93
  94 static void news_folder_init(Folder *folder, const gchar *name,
  95                              const gchar *path);
  96
  97 static Folder   *news_folder_new        (const gchar    *name,
  98                                          const gchar    *folder);
  99 static void      news_folder_destroy    (Folder         *folder);
 100
 101 static gchar *news_fetch_msg            (Folder         *folder,
 102                                          FolderItem     *item,
 103                                          gint            num);
 104 static void news_remove_cached_msg      (Folder         *folder,
 105                                          FolderItem     *item,
 106                                          MsgInfo        *msginfo);
 107 #ifdef USE_GNUTLS
 108 static Session *news_session_new         (Folder                *folder,
 109                                           const PrefsAccount    *account,
 110                                           gushort                port,
 111                                           SSLType                ssl_type);
 112 #else
 113 static Session *news_session_new         (Folder                *folder,
 114                                           const PrefsAccount    *account,
 115                                           gushort                port);
 116 #endif
 117
 118 static gint news_get_article             (Folder        *folder,
 119                                           gint           num,
 120                                           gchar         *filename);
 121
 122 static gint news_select_group            (Folder        *folder,
 123                                           const gchar   *group,
 124                                           gint          *num,
 125                                           gint          *first,
 126                                           gint          *last);
 127 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 128 static gint news_get_num_list                    (Folder        *folder,
 129                                           FolderItem    *item,
 130                                           GSList       **list,
 131                                           gboolean      *old_uids_valid);
 132 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 133                                           FolderItem    *item,
 134                                           gint           num);
 135 static GSList *news_get_msginfos                 (Folder        *folder,
 136                                           FolderItem    *item,
 137                                           GSList        *msgnum_list);
 138 static gboolean news_scan_required               (Folder        *folder,
 139                                           FolderItem    *item);
 140
 141 static gchar *news_folder_get_path       (Folder        *folder);
 142 static gchar *news_item_get_path                 (Folder        *folder,
 143                                           FolderItem    *item);
 144 static void news_synchronise             (FolderItem    *item, gint days);
 145 static int news_remove_msg               (Folder        *folder,
 146                                           FolderItem    *item,
 147                                           gint           msgnum);
 148 static gint news_rename_folder           (Folder *folder,
 149                                           FolderItem *item,
 150                                           const gchar *name);
 151 static gint news_remove_folder           (Folder        *folder,
 152                                           FolderItem    *item);
 153 static FolderClass news_class;
 154
 155 FolderClass *news_get_class(void)
 156 {
 157         if (news_class.idstr == NULL) {
 158                 news_class.type = F_NEWS;
 159                 news_class.idstr = "news";
 160                 news_class.uistr = "News";
 161                 news_class.supports_server_search = FALSE;
 162
 163                 /* Folder functions */
 164                 news_class.new_folder = news_folder_new;
 165                 news_class.destroy_folder = news_folder_destroy;
 166
 167                 /* FolderItem functions */
 168                 news_class.item_get_path = news_item_get_path;
 169                 news_class.get_num_list = news_get_num_list;
 170                 news_class.scan_required = news_scan_required;
 171                 news_class.rename_folder = news_rename_folder;
 172                 news_class.remove_folder = news_remove_folder;
 173
 174                 /* Message functions */
 175                 news_class.get_msginfo = news_get_msginfo;
 176                 news_class.get_msginfos = news_get_msginfos;
 177                 news_class.fetch_msg = news_fetch_msg;
 178                 news_class.synchronise = news_synchronise;
 179                 news_class.search_msgs = folder_item_search_msgs_local;
 180                 news_class.remove_msg = news_remove_msg;
 181                 news_class.remove_cached_msg = news_remove_cached_msg;
 182         };
 183
 184         return &news_class;
 185 }
 186
 187 guint nntp_folder_get_refcnt(Folder *folder)
 188 {
 189         return ((NewsFolder *)folder)->refcnt;
 190 }
 191
 192 void nntp_folder_ref(Folder *folder)
 193 {
 194         ((NewsFolder *)folder)->refcnt++;
 195 }
 196
 197 void nntp_folder_unref(Folder *folder)
 198 {
 199         if (((NewsFolder *)folder)->refcnt > 0)
 200                 ((NewsFolder *)folder)->refcnt--;
 201 }
 202
 203 static int news_remove_msg               (Folder        *folder,
 204                                           FolderItem    *item,
 205                                           gint           msgnum)
 206 {
 207         gchar *path, *filename;
 208
 209         cm_return_val_if_fail(folder != NULL, -1);
 210         cm_return_val_if_fail(item != NULL, -1);
 211
 212         path = folder_item_get_path(item);
 213         if (!is_dir_exist(path))
 214                 make_dir_hier(path);
 215
 216         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 217         g_free(path);
 218         claws_unlink(filename);
 219         g_free(filename);
 220         return 0;
 221 }
 222
 223 static void news_folder_lock(NewsFolder *folder)
 224 {
 225         folder->lock_count++;
 226 }
 227
 228 static void news_folder_unlock(NewsFolder *folder)
 229 {
 230         if (folder->lock_count > 0)
 231                 folder->lock_count--;
 232 }
 233
 234 int news_folder_locked(Folder *folder)
 235 {
 236         if (folder == NULL)
 237                 return 0;
 238
 239         return NEWS_FOLDER(folder)->lock_count;
 240 }
 241
 242 static Folder *news_folder_new(const gchar *name, const gchar *path)
 243 {
 244         Folder *folder;
 245
 246         folder = (Folder *)g_new0(NewsFolder, 1);
 247         folder->klass = &news_class;
 248         news_folder_init(folder, name, path);
 249
 250         return folder;
 251 }
 252
 253 static void news_folder_destroy(Folder *folder)
 254 {
 255         gchar *dir;
 256
 257         while (nntp_folder_get_refcnt(folder) > 0)
 258                 gtk_main_iteration();
 259
 260         dir = news_folder_get_path(folder);
 261         if (is_dir_exist(dir))
 262                 remove_dir_recursive(dir);
 263         g_free(dir);
 264
 265         nntp_done(folder);
 266         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 267 }
 268
 269 static void news_folder_init(Folder *folder, const gchar *name,
 270                              const gchar *path)
 271 {
 272         folder_remote_folder_init(folder, name, path);
 273 }
 274
 275 static void news_session_destroy(Session *session)
 276 {
 277         NewsSession *news_session = NEWS_SESSION(session);
 278
 279         cm_return_if_fail(session != NULL);
 280
 281         if (news_session->group)
 282                 g_free(news_session->group);
 283 }
 284
 285 static gboolean nntp_ping(gpointer data)
 286 {
 287         Session *session = (Session *)data;
 288         NewsSession *news_session = NEWS_SESSION(session);
 289         int r;
 290         struct tm lt;
 291
 292         if (session->state != SESSION_READY || news_folder_locked(news_session->folder))
 293                 return FALSE;
 294
 295         news_folder_lock(NEWS_FOLDER(news_session->folder));
 296
 297         if ((r = nntp_threaded_date(news_session->folder, &lt)) != NEWSNNTP_NO_ERROR) {
 298                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 299                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 300                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 301                               " disconnected.\n"),
 302                             news_session->folder->account->nntp_server,
 303                             news_session->folder->account->set_nntpport ?
 304                             news_session->folder->account->nntpport : NNTP_PORT);
 305                         REMOTE_FOLDER(news_session->folder)->session = NULL;
 306                         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 307                         session->state = SESSION_DISCONNECTED;
 308                         session->sock = NULL;
 309                         session_destroy(session);
 310                         return FALSE;
 311                 }
 312         }
 313
 314         news_folder_unlock(NEWS_FOLDER(news_session->folder));
 315         session_set_access_time(session);
 316         return TRUE;
 317 }
 318
 319
 320 #ifdef USE_GNUTLS
 321 static Session *news_session_new(Folder *folder, const PrefsAccount *account, gushort port,
 322                                  SSLType ssl_type)
 323 #else
 324 static Session *news_session_new(Folder *folder, const PrefsAccount *account, gushort port)
 325 #endif
 326 {
 327         NewsSession *session;
 328         const char *server = account->nntp_server;
 329         int r = 0;
 330         ProxyInfo *proxy_info = NULL;
 331
 332         cm_return_val_if_fail(server != NULL, NULL);
 333
 334         log_message(LOG_PROTOCOL,
 335                         _("Account '%s': Connecting to NNTP server: %s:%d...\n"),
 336                         folder->account->account_name, server, port);
 337
 338         session = g_new0(NewsSession, 1);
 339         session_init(SESSION(session), folder->account, FALSE);
 340         SESSION(session)->type             = SESSION_NEWS;
 341         SESSION(session)->server           = g_strdup(server);
 342         SESSION(session)->port             = port;
 343         SESSION(session)->sock             = NULL;
 344         SESSION(session)->destroy          = news_session_destroy;
 345
 346         if (account->use_proxy) {
 347                 if (account->use_default_proxy) {
 348                         proxy_info = (ProxyInfo *)&(prefs_common.proxy_info);
 349                         if (proxy_info->use_proxy_auth)
 350                                 proxy_info->proxy_pass = passwd_store_get(PWS_CORE, PWS_CORE_PROXY,
 351                                         PWS_CORE_PROXY_PASS);
 352                 } else {
 353                         proxy_info = (ProxyInfo *)&(account->proxy_info);
 354                         if (proxy_info->use_proxy_auth)
 355                                 proxy_info->proxy_pass = passwd_store_get_account(account->account_id,
 356                                         PWS_ACCOUNT_PROXY_PASS);
 357                 }
 358         }
 359         SESSION(session)->proxy_info = proxy_info;
 360
 361         nntp_init(folder);
 362
 363 #ifdef USE_GNUTLS
 364         SESSION(session)->use_tls_sni = account->use_tls_sni;
 365         if (ssl_type != SSL_NONE)
 366                 r = nntp_threaded_connect_ssl(folder, server, port, proxy_info);
 367         else
 368 #endif
 369                 r = nntp_threaded_connect(folder, server, port, proxy_info);
 370
 371         if (r != NEWSNNTP_NO_ERROR) {
 372                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d...\n"), server, port);
 373                 session_destroy(SESSION(session));
 374                 return NULL;
 375         }
 376
 377         session->folder = folder;
 378
 379         return SESSION(session);
 380 }
 381
 382 static Session *news_session_new_for_folder(Folder *folder)
 383 {
 384         Session *session;
 385         PrefsAccount *ac;
 386         const gchar *userid = NULL;
 387         gchar *passwd = NULL;
 388         gushort port;
 389         int r;
 390
 391         cm_return_val_if_fail(folder != NULL, NULL);
 392         cm_return_val_if_fail(folder->account != NULL, NULL);
 393
 394         ac = folder->account;
 395
 396 #ifdef USE_GNUTLS
 397         port = ac->set_nntpport ? ac->nntpport
 398                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 399         session = news_session_new(folder, ac, port, ac->ssl_nntp);
 400 #else
 401         if (ac->ssl_nntp != SSL_NONE) {
 402                 if (alertpanel_full(_("Insecure connection"),
 403                         _("This connection is configured to be secured "
 404                           "using TLS, but TLS is not available "
 405                           "in this build of Claws Mail. \n\n"
 406                           "Do you want to continue connecting to this "
 407                           "server? The communication would not be "
 408                           "secure."),
 409                           GTK_STOCK_CANCEL, _("Con_tinue connecting"), NULL,
 410                                 ALERTFOCUS_FIRST, FALSE, NULL, ALERT_WARNING) != G_ALERTALTERNATE)
 411                         return NULL;
 412         }
 413         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 414         session = news_session_new(folder, ac, port);
 415 #endif
 416
 417         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 418                 userid = ac->userid;
 419                 if (password_get(userid, ac->nntp_server, "nntp", port, &passwd)) {
 420                         /* NOP */;
 421                 } else if ((passwd = passwd_store_get_account(ac->account_id,
 422                                         PWS_ACCOUNT_RECV)) == NULL) {
 423                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 424                                                                   userid,
 425                                                                   &(ac->session_passwd));
 426                 }
 427         }
 428
 429         if (session != NULL)
 430                 r = nntp_threaded_mode_reader(folder);
 431         else
 432                 r = NEWSNNTP_ERROR_CONNECTION_REFUSED;
 433
 434         if (r != NEWSNNTP_NO_ERROR) {
 435             if (r == NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 436                 /*
 437                    FIX ME when libetpan implements 480 to indicate authorization
 438                    is required to use this capability. Libetpan treats a 480 as a
 439                    381 which is clearly wrong.
 440                    RFC 4643 section 2.
 441                    Response code 480
 442                    Generic response
 443                    Meaning: command unavailable until the client
 444                    has authenticated itself.
 445                 */
 446                 /* if the server does not advertise the capability MODE-READER,
 447                    we normally should not send MODE READER. However this can't
 448                    hurt: a transit-only server returns 502 and closes the cnx.
 449                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 450                 */
 451                 log_error(LOG_PROTOCOL, _("Libetpan does not support return code 480 "
 452                 "so for now we choose to continue\n"));
 453             }
 454             else if (r == NEWSNNTP_ERROR_UNEXPECTED_RESPONSE) {
 455                 /* if the server does not advertise the capability MODE-READER,
 456                    we normally should not send MODE READER. However this can't
 457                    hurt: a transit-only server returns 502 and closes the cnx.
 458                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 459                 */
 460                 log_error(LOG_PROTOCOL, _("Mode reader failed, continuing nevertheless\n"));
 461             }
 462             else {
 463                 /* An error state bail out */
 464                 log_error(LOG_PROTOCOL, _("Error creating session with %s:%d\n"), ac->nntp_server, port);
 465                 if (session != NULL)
 466                         session_destroy(SESSION(session));
 467                 g_free(passwd);
 468                 if (ac->session_passwd) {
 469                         g_free(ac->session_passwd);
 470                         ac->session_passwd = NULL;
 471                 }
 472                 return NULL;
 473             }
 474         }
 475
 476         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 477                 if (nntp_threaded_login(folder, userid, passwd) !=
 478                         NEWSNNTP_NO_ERROR) {
 479                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d...\n"), ac->nntp_server, port);
 480                         session_destroy(SESSION(session));
 481                         g_free(passwd);
 482                         if (ac->session_passwd) {
 483                                 g_free(ac->session_passwd);
 484                                 ac->session_passwd = NULL;
 485                         }
 486                         return NULL;
 487                 }
 488         }
 489         g_free(passwd);
 490
 491         return session;
 492 }
 493
 494 static NewsSession *news_session_get(Folder *folder)
 495 {
 496         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 497
 498         cm_return_val_if_fail(folder != NULL, NULL);
 499         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 500         cm_return_val_if_fail(folder->account != NULL, NULL);
 501
 502         if (prefs_common.work_offline &&
 503             !inc_offline_should_override(FALSE,
 504                 _("Claws Mail needs network access in order "
 505                   "to access the News server."))) {
 506                 return NULL;
 507         }
 508
 509         if (!rfolder->session) {
 510                 rfolder->session = news_session_new_for_folder(folder);
 511                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 512                 return NEWS_SESSION(rfolder->session);
 513         }
 514
 515         /* Handle port change (also ssl/nossl change) without needing to
 516          * restart application. */
 517         if (rfolder->session->port != folder->account->nntpport) {
 518                 session_destroy(rfolder->session);
 519                 rfolder->session = news_session_new_for_folder(folder);
 520                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 521                 goto newsession;
 522         }
 523
 524         if (time(NULL) - rfolder->session->last_access_time <
 525                 SESSION_TIMEOUT_INTERVAL) {
 526                 return NEWS_SESSION(rfolder->session);
 527         }
 528
 529         if (!nntp_ping(rfolder->session)) {
 530                 rfolder->session = news_session_new_for_folder(folder);
 531                 session_register_ping(SESSION(rfolder->session), nntp_ping);
 532         }
 533
 534 newsession:
 535         if (rfolder->session)
 536                 session_set_access_time(rfolder->session);
 537
 538         return NEWS_SESSION(rfolder->session);
 539 }
 540
 541 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 542 {
 543         gchar *path, *filename;
 544
 545         path = folder_item_get_path(item);
 546
 547         if (!is_dir_exist(path)) {
 548                 g_free(path);
 549                 return;
 550         }
 551
 552         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 553         g_free(path);
 554
 555         if (is_file_exist(filename)) {
 556                 claws_unlink(filename);
 557         }
 558         g_free(filename);
 559 }
 560
 561 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 562 {
 563         gchar *path, *filename;
 564         NewsSession *session;
 565         gint ok;
 566
 567         cm_return_val_if_fail(folder != NULL, NULL);
 568         cm_return_val_if_fail(item != NULL, NULL);
 569
 570         path = folder_item_get_path(item);
 571         if (!is_dir_exist(path))
 572                 make_dir_hier(path);
 573         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 574         g_free(path);
 575
 576         if (is_file_exist(filename)) {
 577                 debug_print("article %d has been already cached.\n", num);
 578                 return filename;
 579         }
 580
 581         session = news_session_get(folder);
 582         if (!session) {
 583                 g_free(filename);
 584                 return NULL;
 585         }
 586
 587         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 588         if (ok != NEWSNNTP_NO_ERROR) {
 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
 597         debug_print("getting article %d...\n", num);
 598         ok = news_get_article(folder,
 599                               num, filename);
 600         if (ok != NEWSNNTP_NO_ERROR) {
 601                 g_warning("can't read article %d", num);
 602                 if (ok == NEWSNNTP_ERROR_STREAM) {
 603                         session_destroy(SESSION(session));
 604                         REMOTE_FOLDER(folder)->session = NULL;
 605                 }
 606                 g_free(filename);
 607                 return NULL;
 608         }
 609         GTK_EVENTS_FLUSH();
 610         return filename;
 611 }
 612
 613 static NewsGroupInfo *news_group_info_new(const gchar *name,
 614                                           gint first, gint last, gchar type)
 615 {
 616         NewsGroupInfo *ginfo;
 617
 618         ginfo = g_new(NewsGroupInfo, 1);
 619         ginfo->name = g_strdup(name);
 620         ginfo->first = first;
 621         ginfo->last = last;
 622         ginfo->type = type;
 623
 624         return ginfo;
 625 }
 626
 627 static void news_group_info_free(NewsGroupInfo *ginfo)
 628 {
 629         g_free(ginfo->name);
 630         g_free(ginfo);
 631 }
 632
 633 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 634                                     NewsGroupInfo *ginfo2)
 635 {
 636         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 637 }
 638
 639 GSList *news_get_group_list(Folder *folder)
 640 {
 641         gchar *path, *filename;
 642         FILE *fp;
 643         GSList *list = NULL;
 644         GSList *last = NULL;
 645         gchar buf[BUFFSIZE];
 646
 647         cm_return_val_if_fail(folder != NULL, NULL);
 648         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 649
 650         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 651         if (!is_dir_exist(path))
 652                 make_dir_hier(path);
 653         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 654         g_free(path);
 655
 656         if ((fp = claws_fopen(filename, "rb")) == NULL) {
 657                 NewsSession *session;
 658                 gint ok;
 659                 clist *grouplist = NULL;
 660                 clistiter *cur;
 661                 fp = claws_fopen(filename, "wb");
 662
 663                 if (!fp) {
 664                         g_free(filename);
 665                         return NULL;
 666                 }
 667                 session = news_session_get(folder);
 668                 if (!session) {
 669                         claws_fclose(fp);
 670                         g_free(filename);
 671                         return NULL;
 672                 }
 673
 674                 ok = nntp_threaded_list(folder, &grouplist);
 675
 676                 if (ok != NEWSNNTP_NO_ERROR) {
 677                         if (ok == NEWSNNTP_ERROR_STREAM) {
 678                                 session_destroy(SESSION(session));
 679                                 REMOTE_FOLDER(folder)->session = NULL;
 680                         }
 681                         claws_fclose(fp);
 682                         g_free(filename);
 683                         return NULL;
 684                 }
 685
 686                 if (grouplist) {
 687                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 688                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 689                                                                         clist_content(cur);
 690                                 if (fprintf(fp, "%s %d %d %c\n",
 691                                         info->grp_name,
 692                                         info->grp_last,
 693                                         info->grp_first,
 694                                         info->grp_type) < 0) {
 695                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 696                                         session_destroy(SESSION(session));
 697                                         REMOTE_FOLDER(folder)->session = NULL;
 698                                         claws_fclose(fp);
 699                                         g_free(filename);
 700                                         newsnntp_list_free(grouplist);
 701                                         return NULL;
 702                                 }
 703                         }
 704                         newsnntp_list_free(grouplist);
 705                 }
 706                 if (claws_safe_fclose(fp) == EOF) {
 707                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 708                         session_destroy(SESSION(session));
 709                         REMOTE_FOLDER(folder)->session = NULL;
 710                         g_free(filename);
 711                         return NULL;
 712                 }
 713
 714                 if ((fp = claws_fopen(filename, "rb")) == NULL) {
 715                         FILE_OP_ERROR(filename, "claws_fopen");
 716                         g_free(filename);
 717                         return NULL;
 718                 }
 719         }
 720
 721         while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
 722                 gchar *p = buf;
 723                 gchar *name;
 724                 gint last_num;
 725                 gint first_num;
 726                 gchar type;
 727                 NewsGroupInfo *ginfo;
 728
 729                 p = strchr(p, ' ');
 730                 if (!p) continue;
 731                 *p = '\0';
 732                 p++;
 733                 name = buf;
 734
 735                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 736                         continue;
 737
 738                 ginfo = news_group_info_new(name, first_num, last_num, type);
 739
 740                 if (!last)
 741                         last = list = g_slist_append(NULL, ginfo);
 742                 else {
 743                         last = g_slist_append(last, ginfo);
 744                         last = last->next;
 745                 }
 746         }
 747
 748         claws_fclose(fp);
 749         g_free(filename);
 750
 751         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 752
 753         return list;
 754 }
 755
 756 void news_group_list_free(GSList *group_list)
 757 {
 758         GSList *cur;
 759
 760         if (!group_list) return;
 761
 762         for (cur = group_list; cur != NULL; cur = cur->next)
 763                 news_group_info_free((NewsGroupInfo *)cur->data);
 764         g_slist_free(group_list);
 765 }
 766
 767 void news_remove_group_list_cache(Folder *folder)
 768 {
 769         gchar *path, *filename;
 770
 771         cm_return_if_fail(folder != NULL);
 772         cm_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 773
 774         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 775         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 776         g_free(path);
 777
 778         if (is_file_exist(filename)) {
 779                 if (claws_unlink(filename) < 0)
 780                         FILE_OP_ERROR(filename, "remove");
 781         }
 782         g_free(filename);
 783 }
 784
 785 gint news_post(Folder *folder, const gchar *file)
 786 {
 787         gint ok;
 788         char *contents = file_read_to_str_no_recode(file);
 789         NewsSession *session;
 790
 791         cm_return_val_if_fail(folder != NULL, -1);
 792         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 793         cm_return_val_if_fail(contents != NULL, -1);
 794
 795         session = news_session_get(folder);
 796         if (!session)  {
 797                 g_free(contents);
 798                 return -1;
 799         }
 800
 801         ok = nntp_threaded_post(folder, contents, strlen(contents));
 802
 803         g_free(contents);
 804
 805         if (ok == NEWSNNTP_ERROR_STREAM) {
 806                 session_destroy(SESSION(session));
 807                 REMOTE_FOLDER(folder)->session = NULL;
 808         }
 809
 810         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 811 }
 812
 813 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 814 {
 815         size_t len;
 816         char *result = NULL;
 817         int r;
 818
 819         r = nntp_threaded_article(folder, num, &result, &len);
 820
 821         if (r == NEWSNNTP_NO_ERROR) {
 822                 if (str_write_to_file(result, filename, FALSE) < 0) {
 823                         mmap_string_unref(result);
 824                         return -1;
 825                 }
 826                 mmap_string_unref(result);
 827         }
 828
 829         return r;
 830 }
 831
 832 /**
 833  * news_select_group:
 834  * @session: Active NNTP session.
 835  * @group: Newsgroup name.
 836  * @num: Estimated number of articles.
 837  * @first: First article number.
 838  * @last: Last article number.
 839  *
 840  * Select newsgroup @group with the GROUP command if it is not already
 841  * selected in @session, or article numbers need to be returned.
 842  *
 843  * Return value: NNTP result code.
 844  **/
 845 static gint news_select_group(Folder *folder, const gchar *group,
 846                               gint *num, gint *first, gint *last)
 847 {
 848         gint ok;
 849         gint num_, first_, last_;
 850         struct newsnntp_group_info *info = NULL;
 851         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 852
 853         cm_return_val_if_fail(session != NULL, -1);
 854
 855         if (!num || !first || !last) {
 856                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 857                         return NEWSNNTP_NO_ERROR;
 858                 num = &num_;
 859                 first = &first_;
 860                 last = &last_;
 861         }
 862
 863         g_free(session->group);
 864         session->group = NULL;
 865
 866         ok = nntp_threaded_group(folder, group, &info);
 867
 868         if (ok == NEWSNNTP_NO_ERROR && info) {
 869                 session->group = g_strdup(group);
 870                 *num = info->grp_first;
 871                 *first = info->grp_first;
 872                 *last = info->grp_last;
 873                 newsnntp_group_free(info);
 874         } else {
 875                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 876         }
 877         return ok;
 878 }
 879
 880 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 881 {
 882         MsgInfo *msginfo;
 883
 884         /* set MsgInfo */
 885         msginfo = procmsg_msginfo_new();
 886         msginfo->msgnum = item->ovr_article;
 887         msginfo->size = item->ovr_size;
 888
 889         msginfo->date = g_strdup(item->ovr_date);
 890         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 891
 892         msginfo->from = conv_unmime_header(item->ovr_author, NULL, TRUE);
 893         msginfo->fromname = procheader_get_fromname(msginfo->from);
 894
 895         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL, TRUE);
 896
 897         remove_return(msginfo->from);
 898         remove_return(msginfo->fromname);
 899         remove_return(msginfo->subject);
 900
 901         if (item->ovr_message_id) {
 902                 gchar *tmp = g_strdup(item->ovr_message_id);
 903                 extract_parenthesis(tmp, '<', '>');
 904                 remove_space(tmp);
 905                 if (*tmp != '\0')
 906                         msginfo->msgid = g_strdup(tmp);
 907                 g_free(tmp);
 908         }
 909
 910         /* FIXME: this is a quick fix; references' meaning was changed
 911          * into having the actual list of references in the References: header.
 912          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 913          * their things properly. */
 914         if (item->ovr_references && *(item->ovr_references)) {
 915                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 916                 guint i = 0;
 917                 char *tmp;
 918                 char *p;
 919                 while (ref_tokens[i]) {
 920                         gchar *cur_ref = ref_tokens[i];
 921                         msginfo->references = references_list_append(msginfo->references,
 922                                         cur_ref);
 923                         i++;
 924                 }
 925                 g_strfreev(ref_tokens);
 926
 927                 tmp = g_strdup(item->ovr_references);
 928                 eliminate_parenthesis(tmp, '(', ')');
 929                 if ((p = strrchr(tmp, '<')) != NULL) {
 930                         extract_parenthesis(p, '<', '>');
 931                         remove_space(p);
 932                         if (*p != '\0')
 933                                 msginfo->inreplyto = g_strdup(p);
 934                 }
 935                 g_free(tmp);
 936         }
 937
 938         return msginfo;
 939 }
 940
 941 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 942 {
 943         gchar * tmp;
 944         FILE * tmpfp;
 945         gchar date[RFC822_DATE_BUFFSIZE];
 946
 947         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 948                               G_DIR_SEPARATOR, msginfo);
 949         if (tmp == NULL)
 950                 return -1;
 951
 952         if ((tmpfp = claws_fopen(tmp, "wb")) == NULL) {
 953                 FILE_OP_ERROR(tmp, "claws_fopen");
 954                 g_free(tmp);
 955                 return -1;
 956         }
 957         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 958                 FILE_OP_ERROR(tmp, "chmod");
 959                 g_warning("can't change file mode");
 960         }
 961
 962         if (prefs_common.hide_timezone)
 963                 get_rfc822_date_hide_tz(date, sizeof(date));
 964         else
 965                 get_rfc822_date(date, sizeof(date));
 966         if (fprintf(tmpfp, "From: %s\r\n"
 967                        "Newsgroups: %s\r\n"
 968                        "Subject: cmsg cancel <%s>\r\n"
 969                        "Control: cancel <%s>\r\n"
 970                        "Approved: %s\r\n"
 971                        "X-Cancelled-by: %s\r\n"
 972                        "Date: %s\r\n"
 973                        "\r\n"
 974                        "removed with Claws Mail\r\n",
 975                        msginfo->from,
 976                        msginfo->newsgroups,
 977                        msginfo->msgid,
 978                        msginfo->msgid,
 979                        msginfo->from,
 980                        msginfo->from,
 981                        date) < 0) {
 982                 FILE_OP_ERROR(tmp, "fprintf");
 983                 claws_fclose(tmpfp);
 984                 claws_unlink(tmp);
 985                 g_free(tmp);
 986                 return -1;
 987         }
 988
 989         if (claws_safe_fclose(tmpfp) == EOF) {
 990                 FILE_OP_ERROR(tmp, "claws_fclose");
 991                 claws_unlink(tmp);
 992                 g_free(tmp);
 993                 return -1;
 994         }
 995
 996         news_post(folder, tmp);
 997         claws_unlink(tmp);
 998
 999         g_free(tmp);
1000
1001         return 0;
1002 }
1003
1004 static gchar *news_folder_get_path(Folder *folder)
1005 {
1006         gchar *folder_path;
1007
1008         cm_return_val_if_fail(folder->account != NULL, NULL);
1009
1010         folder_path = g_strconcat(get_news_cache_dir(),
1011                                   G_DIR_SEPARATOR_S,
1012                                   folder->account->nntp_server,
1013                                   NULL);
1014         return folder_path;
1015 }
1016
1017 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
1018 {
1019         gchar *folder_path, *path;
1020
1021         cm_return_val_if_fail(folder != NULL, NULL);
1022         cm_return_val_if_fail(item != NULL, NULL);
1023         folder_path = news_folder_get_path(folder);
1024
1025         cm_return_val_if_fail(folder_path != NULL, NULL);
1026         if (g_path_is_absolute(folder_path)) {
1027                 if (item->path)
1028                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
1029                                            item->path, NULL);
1030                 else
1031                         path = g_strdup(folder_path);
1032         } else {
1033                 if (item->path)
1034                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1035                                            folder_path, G_DIR_SEPARATOR_S,
1036                                            item->path, NULL);
1037                 else
1038                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
1039                                            folder_path, NULL);
1040         }
1041         g_free(folder_path);
1042 #ifdef G_OS_WIN32
1043         while (strchr(path, '/'))
1044                 *strchr(path, '/') = '\\';
1045 #endif
1046         return path;
1047 }
1048
1049 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
1050 {
1051         NewsSession *session;
1052         gint i, ok, num, first, last, nummsgs = 0;
1053         gchar *dir;
1054
1055         cm_return_val_if_fail(item != NULL, -1);
1056         cm_return_val_if_fail(item->folder != NULL, -1);
1057         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
1058
1059         session = news_session_get(folder);
1060         cm_return_val_if_fail(session != NULL, -1);
1061
1062         *old_uids_valid = TRUE;
1063
1064         news_folder_lock(NEWS_FOLDER(item->folder));
1065
1066         ok = news_select_group(folder, item->path, &num, &first, &last);
1067         if (ok != NEWSNNTP_NO_ERROR) {
1068                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1069                 news_folder_unlock(NEWS_FOLDER(item->folder));
1070                 return -1;
1071         }
1072
1073         dir = news_folder_get_path(folder);
1074         if (num <= 0)
1075                 remove_all_numbered_files(dir);
1076         else if (last < first)
1077                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
1078                             first, last);
1079         else {
1080                 for (i = first; i <= last; i++) {
1081                         *msgnum_list = g_slist_prepend(*msgnum_list,
1082                                                        GINT_TO_POINTER(i));
1083                         nummsgs++;
1084                 }
1085                 debug_print("removing old messages from %d to %d in %s\n",
1086                             first, last, dir);
1087                 remove_numbered_files(dir, 1, first - 1);
1088         }
1089         g_free(dir);
1090         news_folder_unlock(NEWS_FOLDER(item->folder));
1091         return nummsgs;
1092 }
1093
1094 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1095 {
1096         msginfo->flags.tmp_flags = 0;
1097         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1098                 if (item->folder->newsart &&
1099                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1100                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1101
1102                 } else {
1103                         if (!item->folder->newsart)
1104                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1105                         g_hash_table_insert(item->folder->newsart,
1106                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1107                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1108                 }
1109         } else {
1110                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1111         }
1112 }
1113
1114 static void news_get_extra_fields(NewsSession *session, FolderItem *item, GSList *msglist)
1115 {
1116         MsgInfo *msginfo = NULL;
1117         gint ok;
1118         GSList *cur;
1119         clist *hdrlist = NULL;
1120         clistiter *hdr;
1121         gint first = -1, last = -1;
1122         GHashTable *hash_table;
1123
1124         cm_return_if_fail(session != NULL);
1125         cm_return_if_fail(item != NULL);
1126         cm_return_if_fail(item->folder != NULL);
1127         cm_return_if_fail(FOLDER_CLASS(item->folder) == &news_class);
1128
1129         if (msglist == NULL)
1130                 return;
1131
1132         news_folder_lock(NEWS_FOLDER(item->folder));
1133
1134         hash_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1135
1136         for (cur = msglist; cur; cur = cur->next) {
1137                 msginfo = (MsgInfo *)cur->data;
1138                 if (first == -1 || msginfo->msgnum < first)
1139                         first = msginfo->msgnum;
1140                 if (last == -1 || msginfo->msgnum > last)
1141                         last = msginfo->msgnum;
1142                 g_hash_table_insert(hash_table,
1143                                 GINT_TO_POINTER(msginfo->msgnum), msginfo);
1144         }
1145
1146         if (first == -1 || last == -1) {
1147                 g_hash_table_destroy(hash_table);
1148                 return;
1149         }
1150
1151 /* Newsgroups */
1152         ok = nntp_threaded_xhdr(item->folder, "newsgroups", first, last, &hdrlist);
1153
1154         if (ok != NEWSNNTP_NO_ERROR) {
1155                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1156                 if (ok == NEWSNNTP_ERROR_STREAM) {
1157                         session_destroy(SESSION(session));
1158                         REMOTE_FOLDER(item->folder)->session = NULL;
1159                 }
1160                 news_folder_unlock(NEWS_FOLDER(item->folder));
1161                 if (hdrlist != NULL)
1162                         newsnntp_xhdr_free(hdrlist);
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->newsgroups)
1171                                 g_free(msginfo->newsgroups);
1172                         msginfo->newsgroups = g_strdup(hdrval->hdr_value);
1173                 }
1174         }
1175         newsnntp_xhdr_free(hdrlist);
1176         hdrlist = NULL;
1177
1178 /* To */
1179         ok = nntp_threaded_xhdr(item->folder, "to", first, last, &hdrlist);
1180
1181         if (ok != NEWSNNTP_NO_ERROR) {
1182                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1183                 if (ok == NEWSNNTP_ERROR_STREAM) {
1184                         session_destroy(SESSION(session));
1185                         REMOTE_FOLDER(item->folder)->session = NULL;
1186                 }
1187                 news_folder_unlock(NEWS_FOLDER(item->folder));
1188                 if (hdrlist != NULL)
1189                         newsnntp_xhdr_free(hdrlist);
1190                 return;
1191         }
1192
1193         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1194                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1195                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1196                 if (msginfo) {
1197                         if (msginfo->to)
1198                                 g_free(msginfo->to);
1199                         msginfo->to = g_strdup(hdrval->hdr_value);
1200                 }
1201         }
1202         newsnntp_xhdr_free(hdrlist);
1203         hdrlist = NULL;
1204
1205 /* Cc */
1206         ok = nntp_threaded_xhdr(item->folder, "cc", first, last, &hdrlist);
1207
1208         if (ok != NEWSNNTP_NO_ERROR) {
1209                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1210                 if (ok == NEWSNNTP_ERROR_STREAM) {
1211                         session_destroy(SESSION(session));
1212                         REMOTE_FOLDER(item->folder)->session = NULL;
1213                 }
1214                 news_folder_unlock(NEWS_FOLDER(item->folder));
1215                 if (hdrlist != NULL)
1216                         newsnntp_xhdr_free(hdrlist);
1217                 return;
1218         }
1219
1220         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1221                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1222                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1223                 if (msginfo) {
1224                         if (msginfo->cc)
1225                                 g_free(msginfo->cc);
1226                         msginfo->cc = g_strdup(hdrval->hdr_value);
1227                 }
1228         }
1229         newsnntp_xhdr_free(hdrlist);
1230         hdrlist = NULL;
1231
1232         g_hash_table_destroy(hash_table);
1233         news_folder_unlock(NEWS_FOLDER(item->folder));
1234 }
1235
1236 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1237 {
1238         GSList *newlist = NULL;
1239         GSList *llast = NULL;
1240         MsgInfo *msginfo;
1241         gint ok;
1242         clist *msglist = NULL;
1243         clistiter *cur;
1244         cm_return_val_if_fail(session != NULL, NULL);
1245         cm_return_val_if_fail(item != NULL, NULL);
1246
1247         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1248                     begin, end, item->path);
1249
1250         news_folder_lock(NEWS_FOLDER(item->folder));
1251
1252         ok = news_select_group(item->folder, item->path, NULL, NULL, NULL);
1253         if (ok != NEWSNNTP_NO_ERROR) {
1254                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1255                 news_folder_unlock(NEWS_FOLDER(item->folder));
1256                 return NULL;
1257         }
1258
1259         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1260
1261         if (ok != NEWSNNTP_NO_ERROR) {
1262                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1263                 if (ok == NEWSNNTP_ERROR_STREAM) {
1264                         session_destroy(SESSION(session));
1265                         REMOTE_FOLDER(item->folder)->session = NULL;
1266                 }
1267                 news_folder_unlock(NEWS_FOLDER(item->folder));
1268                 if (msglist != NULL)
1269                         newsnntp_xover_resp_list_free(msglist);
1270                 return NULL;
1271         }
1272
1273         if (msglist) {
1274                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1275                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1276                         msginfo = news_parse_xover(ritem);
1277
1278                         if (!msginfo) {
1279                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1280                                 continue;
1281                         }
1282
1283                         msginfo->folder = item;
1284                         news_set_msg_flags(item, msginfo);
1285                         msginfo->flags.tmp_flags |= MSG_NEWS;
1286
1287                         if (!newlist)
1288                                 llast = newlist = g_slist_append(newlist, msginfo);
1289                         else {
1290                                 llast = g_slist_append(llast, msginfo);
1291                                 llast = llast->next;
1292                         }
1293                 }
1294                 newsnntp_xover_resp_list_free(msglist);
1295         }
1296
1297         news_folder_unlock(NEWS_FOLDER(item->folder));
1298
1299         session_set_access_time(SESSION(session));
1300
1301         news_get_extra_fields(session, item, newlist);
1302
1303         return newlist;
1304 }
1305
1306 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1307 {
1308         GSList *msglist = NULL;
1309         NewsSession *session;
1310         MsgInfo *msginfo = NULL;
1311
1312         session = news_session_get(folder);
1313         cm_return_val_if_fail(session != NULL, NULL);
1314         cm_return_val_if_fail(item != NULL, NULL);
1315         cm_return_val_if_fail(item->folder != NULL, NULL);
1316         cm_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1317
1318         msglist = news_get_msginfos_for_range(session, item, num, num);
1319
1320         if (msglist)
1321                 msginfo = msglist->data;
1322
1323         g_slist_free(msglist);
1324
1325         return msginfo;
1326 }
1327
1328 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1329 {
1330         NewsSession *session;
1331         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1332         guint first, last, next;
1333
1334         cm_return_val_if_fail(folder != NULL, NULL);
1335         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1336         cm_return_val_if_fail(msgnum_list != NULL, NULL);
1337         cm_return_val_if_fail(item != NULL, NULL);
1338
1339         session = news_session_get(folder);
1340         cm_return_val_if_fail(session != NULL, NULL);
1341
1342         tmp_msgnum_list = g_slist_copy(msgnum_list);
1343         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1344
1345         progressindicator_start(PROGRESS_TYPE_NETWORK);
1346
1347         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1348         last = first;
1349
1350         news_folder_lock(NEWS_FOLDER(item->folder));
1351
1352         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1353                 next = GPOINTER_TO_INT(elem->data);
1354                 if(next != (last + 1)) {
1355                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1356                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1357                         first = next;
1358                 }
1359                 last = next;
1360         }
1361
1362         news_folder_unlock(NEWS_FOLDER(item->folder));
1363
1364         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1365         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1366
1367         g_slist_free(tmp_msgnum_list);
1368
1369         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1370
1371         return msginfo_list;
1372 }
1373
1374 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1375 {
1376         return TRUE;
1377 }
1378
1379 void news_synchronise(FolderItem *item, gint days)
1380 {
1381         news_gtk_synchronise(item, days);
1382 }
1383
1384 static gint news_rename_folder(Folder *folder, FolderItem *item,
1385                                 const gchar *name)
1386 {
1387         gchar *path;
1388
1389         cm_return_val_if_fail(folder != NULL, -1);
1390         cm_return_val_if_fail(item != NULL, -1);
1391         cm_return_val_if_fail(item->path != NULL, -1);
1392         cm_return_val_if_fail(name != NULL, -1);
1393
1394         path = folder_item_get_path(item);
1395         if (!is_dir_exist(path))
1396                 make_dir_hier(path);
1397
1398         g_free(item->name);
1399         item->name = g_strdup(name);
1400
1401         return 0;
1402 }
1403
1404 static gint news_remove_folder(Folder *folder, FolderItem *item)
1405 {
1406         gchar *path;
1407
1408         cm_return_val_if_fail(folder != NULL, -1);
1409         cm_return_val_if_fail(item != NULL, -1);
1410         cm_return_val_if_fail(item->path != NULL, -1);
1411
1412         path = folder_item_get_path(item);
1413         if (remove_dir_recursive(path) < 0) {
1414                 g_warning("can't remove directory '%s'", path);
1415                 g_free(path);
1416                 return -1;
1417         }
1418
1419         g_free(path);
1420         folder_item_remove(item);
1421         return 0;
1422 }
1423
1424 void nntp_disconnect_all(gboolean have_connectivity)
1425 {
1426         GList *list;
1427         gboolean short_timeout;
1428 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1429         GError *error;
1430 #endif
1431
1432 #ifdef HAVE_NETWORKMANAGER_SUPPORT
1433         error = NULL;
1434         short_timeout = !networkmanager_is_online(&error);
1435         if(error) {
1436                 short_timeout = TRUE;
1437                 g_error_free(error);
1438         }
1439 #else
1440         short_timeout = TRUE;
1441 #endif
1442
1443         if(short_timeout)
1444                 nntp_main_set_timeout(1);
1445
1446         for (list = account_get_list(); list != NULL; list = list->next) {
1447                 PrefsAccount *account = list->data;
1448                 if (account->protocol == A_NNTP) {
1449                         RemoteFolder *folder = (RemoteFolder *)account->folder;
1450                         if (folder && folder->session) {
1451                                 NewsSession *session = (NewsSession *)folder->session;
1452                                 if (have_connectivity)
1453                                         nntp_threaded_disconnect(FOLDER(folder));
1454                                 SESSION(session)->state = SESSION_DISCONNECTED;
1455                                 SESSION(session)->sock = NULL;
1456                                 session_destroy(SESSION(session));
1457                                 folder->session = NULL;
1458                         }
1459                 }
1460         }
1461
1462         if(short_timeout)
1463                 nntp_main_set_timeout(prefs_common.io_timeout_secs);
1464 }
1465
1466 #else
1467 #include <glib.h>
1468 #include <glib/gi18n.h>
1469 #include <gtk/gtk.h>
1470 #include "folder.h"
1471 #include "alertpanel.h"
1472
1473 static FolderClass news_class;
1474
1475 static void warn_etpan(void)
1476 {
1477         static gboolean missing_news_warning = TRUE;
1478         if (missing_news_warning) {
1479                 missing_news_warning = FALSE;
1480                 alertpanel_error(
1481                         _("You have one or more News accounts "
1482                           "defined. However this version of "
1483                           "Claws Mail has been built without "
1484                           "News support; your News accounts are "
1485                           "disabled.\n\n"
1486                           "You probably need to "
1487                           "install libetpan and recompile "
1488                           "Claws Mail."));
1489         }
1490 }
1491 static Folder *news_folder_new(const gchar *name, const gchar *path)
1492 {
1493         warn_etpan();
1494         return NULL;
1495 }
1496 void news_group_list_free(GSList *group_list)
1497 {
1498         warn_etpan();
1499 }
1500 void news_remove_group_list_cache(Folder *folder)
1501 {
1502         warn_etpan();
1503 }
1504 int news_folder_locked(Folder *folder)
1505 {
1506         warn_etpan();
1507         return 0;
1508 }
1509 gint news_post(Folder *folder, const gchar *file)
1510 {
1511         warn_etpan();
1512         return -1;
1513 }
1514
1515 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1516 {
1517         warn_etpan();
1518         return -1;
1519 }
1520
1521 GSList *news_get_group_list(Folder *folder)
1522 {
1523         warn_etpan();
1524         return NULL;
1525 }
1526
1527
1528 FolderClass *news_get_class(void)
1529 {
1530         if (news_class.idstr == NULL) {
1531                 news_class.type = F_NEWS;
1532                 news_class.idstr = "news";
1533                 news_class.uistr = "News";
1534
1535                 /* Folder functions */
1536                 news_class.new_folder = news_folder_new;
1537         };
1538
1539         return &news_class;
1540 }
1541
1542 void nntp_disconnect_all(gboolean have_connectivity)
1543 {
1544 }
1545
1546 #endif