src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 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 #endif
  23
  24 #ifdef HAVE_LIBETPAN
  25
  26 #include "defs.h"
  27
  28 #include <glib.h>
  29 #include <glib/gi18n.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <stdlib.h>
  33 #include <dirent.h>
  34 #include <unistd.h>
  35 #include <time.h>
  36 #include <libetpan/libetpan.h>
  37
  38 #include "nntp-thread.h"
  39 #include "news.h"
  40 #include "news_gtk.h"
  41 #include "socket.h"
  42 #include "recv.h"
  43 #include "procmsg.h"
  44 #include "procheader.h"
  45 #include "folder.h"
  46 #include "session.h"
  47 #include "statusbar.h"
  48 #include "codeconv.h"
  49 #include "utils.h"
  50 #include "prefs_common.h"
  51 #include "prefs_account.h"
  52 #include "inputdialog.h"
  53 #include "log.h"
  54 #include "progressindicator.h"
  55 #include "remotefolder.h"
  56 #include "alertpanel.h"
  57 #include "inc.h"
  58 #ifdef USE_GNUTLS
  59 #  include "ssl.h"
  60 #endif
  61
  62 #define NNTP_PORT       119
  63 #ifdef USE_GNUTLS
  64 #define NNTPS_PORT      563
  65 #endif
  66
  67 typedef struct _NewsFolder      NewsFolder;
  68 typedef struct _NewsSession     NewsSession;
  69
  70 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  71 #define NEWS_SESSION(obj)       ((NewsSession *)obj)
  72
  73 struct _NewsFolder
  74 {
  75         RemoteFolder rfolder;
  76
  77         gboolean use_auth;
  78         gboolean lock_count;
  79         guint refcnt;
  80 };
  81
  82 struct _NewsSession
  83 {
  84         Session session;
  85
  86         gchar *group;
  87 };
  88
  89 static void news_folder_init(Folder *folder, const gchar *name,
  90                              const gchar *path);
  91
  92 static Folder   *news_folder_new        (const gchar    *name,
  93                                          const gchar    *folder);
  94 static void      news_folder_destroy    (Folder         *folder);
  95
  96 static gchar *news_fetch_msg            (Folder         *folder,
  97                                          FolderItem     *item,
  98                                          gint            num);
  99 static void news_remove_cached_msg      (Folder         *folder,
 100                                          FolderItem     *item,
 101                                          MsgInfo        *msginfo);
 102 #ifdef USE_GNUTLS
 103 static Session *news_session_new         (Folder        *folder,
 104                                           const gchar   *server,
 105                                           gushort        port,
 106                                           const gchar   *userid,
 107                                           const gchar   *passwd,
 108                                           SSLType        ssl_type);
 109 #else
 110 static Session *news_session_new         (Folder        *folder,
 111                                           const gchar   *server,
 112                                           gushort        port,
 113                                           const gchar   *userid,
 114                                           const gchar   *passwd);
 115 #endif
 116
 117 static gint news_get_article             (Folder        *folder,
 118                                           gint           num,
 119                                           gchar         *filename);
 120
 121 static gint news_select_group            (Folder        *folder,
 122                                           const gchar   *group,
 123                                           gint          *num,
 124                                           gint          *first,
 125                                           gint          *last);
 126 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 127 static gchar *news_parse_xhdr            (clist         *list,
 128                                           MsgInfo       *msginfo);
 129 static gint news_get_num_list                    (Folder        *folder,
 130                                           FolderItem    *item,
 131                                           GSList       **list,
 132                                           gboolean      *old_uids_valid);
 133 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 134                                           FolderItem    *item,
 135                                           gint           num);
 136 static GSList *news_get_msginfos                 (Folder        *folder,
 137                                           FolderItem    *item,
 138                                           GSList        *msgnum_list);
 139 static gboolean news_scan_required               (Folder        *folder,
 140                                           FolderItem    *item);
 141
 142 static gchar *news_folder_get_path       (Folder        *folder);
 143 static gchar *news_item_get_path                 (Folder        *folder,
 144                                           FolderItem    *item);
 145 static void news_synchronise             (FolderItem    *item, gint days);
 146 static int news_remove_msg               (Folder        *folder,
 147                                           FolderItem    *item,
 148                                           gint           msgnum);
 149 static gint news_rename_folder           (Folder *folder,
 150                                           FolderItem *item,
 151                                           const gchar *name);
 152 static gint news_remove_folder           (Folder        *folder,
 153                                           FolderItem    *item);
 154 static FolderClass news_class;
 155
 156 FolderClass *news_get_class(void)
 157 {
 158         if (news_class.idstr == NULL) {
 159                 news_class.type = F_NEWS;
 160                 news_class.idstr = "news";
 161                 news_class.uistr = "News";
 162
 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.remove_msg = news_remove_msg;
 180                 news_class.remove_cached_msg = news_remove_cached_msg;
 181         };
 182
 183         return &news_class;
 184 }
 185
 186 guint nntp_folder_get_refcnt(Folder *folder)
 187 {
 188         return ((NewsFolder *)folder)->refcnt;
 189 }
 190
 191 void nntp_folder_ref(Folder *folder)
 192 {
 193         ((NewsFolder *)folder)->refcnt++;
 194 }
 195
 196 void nntp_folder_unref(Folder *folder)
 197 {
 198         if (((NewsFolder *)folder)->refcnt > 0)
 199                 ((NewsFolder *)folder)->refcnt--;
 200 }
 201
 202 static int news_remove_msg               (Folder        *folder,
 203                                           FolderItem    *item,
 204                                           gint           msgnum)
 205 {
 206         gchar *path, *filename;
 207
 208         g_return_val_if_fail(folder != NULL, -1);
 209         g_return_val_if_fail(item != NULL, -1);
 210
 211         path = folder_item_get_path(item);
 212         if (!is_dir_exist(path))
 213                 make_dir_hier(path);
 214
 215         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 216         g_free(path);
 217         claws_unlink(filename);
 218         g_free(filename);
 219         return 0;
 220 }
 221
 222 static void news_folder_lock(NewsFolder *folder)
 223 {
 224         folder->lock_count++;
 225 }
 226
 227 static void news_folder_unlock(NewsFolder *folder)
 228 {
 229         if (folder->lock_count > 0)
 230                 folder->lock_count--;
 231 }
 232
 233 int news_folder_locked(Folder *folder)
 234 {
 235         if (folder == NULL)
 236                 return 0;
 237
 238         return NEWS_FOLDER(folder)->lock_count;
 239 }
 240
 241 static Folder *news_folder_new(const gchar *name, const gchar *path)
 242 {
 243         Folder *folder;
 244
 245         folder = (Folder *)g_new0(NewsFolder, 1);
 246         folder->klass = &news_class;
 247         news_folder_init(folder, name, path);
 248
 249         return folder;
 250 }
 251
 252 static void news_folder_destroy(Folder *folder)
 253 {
 254         gchar *dir;
 255
 256         while (nntp_folder_get_refcnt(folder) > 0)
 257                 gtk_main_iteration();
 258
 259         dir = news_folder_get_path(folder);
 260         if (is_dir_exist(dir))
 261                 remove_dir_recursive(dir);
 262         g_free(dir);
 263
 264         nntp_done(folder);
 265         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 266 }
 267
 268 static void news_folder_init(Folder *folder, const gchar *name,
 269                              const gchar *path)
 270 {
 271         folder_remote_folder_init(folder, name, path);
 272 }
 273
 274 static void news_session_destroy(Session *session)
 275 {
 276         NewsSession *news_session = NEWS_SESSION(session);
 277
 278         g_return_if_fail(session != NULL);
 279
 280         if (news_session->group)
 281                 g_free(news_session->group);
 282 }
 283
 284 #ifdef USE_GNUTLS
 285 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 286                                  const gchar *userid, const gchar *passwd,
 287                                  SSLType ssl_type)
 288 #else
 289 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 290                                  const gchar *userid, const gchar *passwd)
 291 #endif
 292 {
 293         NewsSession *session;
 294         int r = 0;
 295         g_return_val_if_fail(server != NULL, NULL);
 296
 297         log_message(LOG_PROTOCOL, _("creating NNTP connection to %s:%d ...\n"), server, port);
 298
 299         session = g_new0(NewsSession, 1);
 300         session_init(SESSION(session), folder->account, FALSE);
 301         SESSION(session)->type             = SESSION_NEWS;
 302         SESSION(session)->server           = g_strdup(server);
 303         SESSION(session)->sock             = NULL;
 304         SESSION(session)->destroy          = news_session_destroy;
 305
 306         nntp_init(folder);
 307
 308 #ifdef USE_GNUTLS
 309         if (ssl_type != SSL_NONE)
 310                 r = nntp_threaded_connect_ssl(folder, server, port);
 311         else
 312 #endif
 313                 r = nntp_threaded_connect(folder, server, port);
 314
 315         if (r != NEWSNNTP_NO_ERROR) {
 316                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d ...\n"), server, port);
 317                 session_destroy(SESSION(session));
 318                 return NULL;
 319         }
 320
 321         return SESSION(session);
 322 }
 323
 324 static Session *news_session_new_for_folder(Folder *folder)
 325 {
 326         Session *session;
 327         PrefsAccount *ac;
 328         const gchar *userid = NULL;
 329         gchar *passwd = NULL;
 330         gushort port;
 331
 332         g_return_val_if_fail(folder != NULL, NULL);
 333         g_return_val_if_fail(folder->account != NULL, NULL);
 334
 335         ac = folder->account;
 336         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 337                 userid = ac->userid;
 338                 if (ac->passwd && ac->passwd[0])
 339                         passwd = g_strdup(ac->passwd);
 340                 else
 341                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 342                                                                   userid,
 343                                                                   &(ac->session_passwd));
 344         }
 345
 346 #ifdef USE_GNUTLS
 347         port = ac->set_nntpport ? ac->nntpport
 348                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 349         session = news_session_new(folder, ac->nntp_server, port, userid, passwd,
 350                                    ac->ssl_nntp);
 351 #else
 352         if (ac->ssl_nntp != SSL_NONE) {
 353                 if (alertpanel_full(_("Insecure connection"),
 354                         _("This connection is configured to be secured "
 355                           "using SSL, but SSL is not available in this "
 356                           "build of Claws Mail. \n\n"
 357                           "Do you want to continue connecting to this "
 358                           "server? The communication would not be "
 359                           "secure."),
 360                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 361                           NULL, FALSE, NULL, ALERT_WARNING,
 362                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 363                         return NULL;
 364         }
 365         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 366         session = news_session_new(folder, ac->nntp_server, port, userid, passwd);
 367 #endif
 368
 369         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 370                 if (nntp_threaded_login(folder, userid, passwd) !=
 371                         NEWSNNTP_NO_ERROR) {
 372                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d ...\n"), ac->nntp_server, port);
 373                         session_destroy(SESSION(session));
 374                         g_free(passwd);
 375                         if (ac->session_passwd) {
 376                                 g_free(ac->session_passwd);
 377                                 ac->session_passwd = NULL;
 378                         }
 379                         return NULL;
 380                 }
 381         }
 382         g_free(passwd);
 383
 384         return session;
 385 }
 386
 387 static NewsSession *news_session_get(Folder *folder)
 388 {
 389         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 390         struct tm lt;
 391         int r;
 392
 393         g_return_val_if_fail(folder != NULL, NULL);
 394         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 395         g_return_val_if_fail(folder->account != NULL, NULL);
 396
 397         if (prefs_common.work_offline &&
 398             !inc_offline_should_override(FALSE,
 399                 _("Claws Mail needs network access in order "
 400                   "to access the News server."))) {
 401                 return NULL;
 402         }
 403
 404         if (!rfolder->session) {
 405                 rfolder->session = news_session_new_for_folder(folder);
 406                 return NEWS_SESSION(rfolder->session);
 407         }
 408
 409         if (time(NULL) - rfolder->session->last_access_time <
 410                 SESSION_TIMEOUT_INTERVAL) {
 411                 return NEWS_SESSION(rfolder->session);
 412         }
 413
 414         if ((r = nntp_threaded_date(folder, &lt)) != NEWSNNTP_NO_ERROR) {
 415                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 416                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 417                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 418                               " disconnected. Reconnecting...\n"),
 419                             folder->account->nntp_server,
 420                             folder->account->set_nntpport ?
 421                             folder->account->nntpport : NNTP_PORT);
 422                         session_destroy(rfolder->session);
 423                         rfolder->session = news_session_new_for_folder(folder);
 424                 }
 425         }
 426
 427         if (rfolder->session)
 428                 session_set_access_time(rfolder->session);
 429
 430         return NEWS_SESSION(rfolder->session);
 431 }
 432
 433 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 434 {
 435         gchar *path, *filename;
 436
 437         path = folder_item_get_path(item);
 438
 439         if (!is_dir_exist(path)) {
 440                 g_free(path);
 441                 return;
 442         }
 443
 444         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 445         g_free(path);
 446
 447         if (is_file_exist(filename)) {
 448                 claws_unlink(filename);
 449         }
 450         g_free(filename);
 451 }
 452
 453 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 454 {
 455         gchar *path, *filename;
 456         NewsSession *session;
 457         gint ok;
 458
 459         g_return_val_if_fail(folder != NULL, NULL);
 460         g_return_val_if_fail(item != NULL, NULL);
 461
 462         path = folder_item_get_path(item);
 463         if (!is_dir_exist(path))
 464                 make_dir_hier(path);
 465         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 466         g_free(path);
 467
 468         if (is_file_exist(filename)) {
 469                 debug_print("article %d has been already cached.\n", num);
 470                 return filename;
 471         }
 472
 473         session = news_session_get(folder);
 474         if (!session) {
 475                 g_free(filename);
 476                 return NULL;
 477         }
 478
 479         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 480         if (ok != NEWSNNTP_NO_ERROR) {
 481                 if (ok == NEWSNNTP_ERROR_STREAM) {
 482                         session_destroy(SESSION(session));
 483                         REMOTE_FOLDER(folder)->session = NULL;
 484                 }
 485                 g_free(filename);
 486                 return NULL;
 487         }
 488
 489         debug_print("getting article %d...\n", num);
 490         ok = news_get_article(folder,
 491                               num, filename);
 492         if (ok != NEWSNNTP_NO_ERROR) {
 493                 g_warning("can't read article %d\n", num);
 494                 if (ok == NEWSNNTP_ERROR_STREAM) {
 495                         session_destroy(SESSION(session));
 496                         REMOTE_FOLDER(folder)->session = NULL;
 497                 }
 498                 g_free(filename);
 499                 return NULL;
 500         }
 501         GTK_EVENTS_FLUSH();
 502         return filename;
 503 }
 504
 505 static NewsGroupInfo *news_group_info_new(const gchar *name,
 506                                           gint first, gint last, gchar type)
 507 {
 508         NewsGroupInfo *ginfo;
 509
 510         ginfo = g_new(NewsGroupInfo, 1);
 511         ginfo->name = g_strdup(name);
 512         ginfo->first = first;
 513         ginfo->last = last;
 514         ginfo->type = type;
 515
 516         return ginfo;
 517 }
 518
 519 static void news_group_info_free(NewsGroupInfo *ginfo)
 520 {
 521         g_free(ginfo->name);
 522         g_free(ginfo);
 523 }
 524
 525 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 526                                     NewsGroupInfo *ginfo2)
 527 {
 528         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 529 }
 530
 531 GSList *news_get_group_list(Folder *folder)
 532 {
 533         gchar *path, *filename;
 534         FILE *fp;
 535         GSList *list = NULL;
 536         GSList *last = NULL;
 537         gchar buf[BUFFSIZE];
 538
 539         g_return_val_if_fail(folder != NULL, NULL);
 540         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 541
 542         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 543         if (!is_dir_exist(path))
 544                 make_dir_hier(path);
 545         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 546         g_free(path);
 547
 548         if ((fp = g_fopen(filename, "rb")) == NULL) {
 549                 NewsSession *session;
 550                 gint ok;
 551                 clist *grouplist = NULL;
 552                 clistiter *cur;
 553                 fp = g_fopen(filename, "wb");
 554
 555                 if (!fp) {
 556                         g_free(filename);
 557                         return NULL;
 558                 }
 559                 session = news_session_get(folder);
 560                 if (!session) {
 561                         fclose(fp);
 562                         g_free(filename);
 563                         return NULL;
 564                 }
 565
 566                 ok = nntp_threaded_list(folder, &grouplist);
 567
 568                 if (ok != NEWSNNTP_NO_ERROR) {
 569                         if (ok == NEWSNNTP_ERROR_STREAM) {
 570                                 session_destroy(SESSION(session));
 571                                 REMOTE_FOLDER(folder)->session = NULL;
 572                         }
 573                         fclose(fp);
 574                         g_free(filename);
 575                         return NULL;
 576                 }
 577
 578                 if (grouplist) {
 579                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 580                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 581                                                                         clist_content(cur);
 582                                 if (fprintf(fp, "%s %d %d %c\n",
 583                                         info->grp_name,
 584                                         info->grp_last,
 585                                         info->grp_first,
 586                                         info->grp_type) < 0) {
 587                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 588                                         session_destroy(SESSION(session));
 589                                         REMOTE_FOLDER(folder)->session = NULL;
 590                                         fclose(fp);
 591                                         g_free(filename);
 592                                         newsnntp_list_free(grouplist);
 593                                         return NULL;
 594                                 }
 595                         }
 596                         newsnntp_list_free(grouplist);
 597                 }
 598                 if (fclose(fp) == EOF) {
 599                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 600                         session_destroy(SESSION(session));
 601                         REMOTE_FOLDER(folder)->session = NULL;
 602                         g_free(filename);
 603                         return NULL;
 604                 }
 605
 606                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 607                         FILE_OP_ERROR(filename, "fopen");
 608                         g_free(filename);
 609                         return NULL;
 610                 }
 611         }
 612
 613         while (fgets(buf, sizeof(buf), fp) != NULL) {
 614                 gchar *p = buf;
 615                 gchar *name;
 616                 gint last_num;
 617                 gint first_num;
 618                 gchar type;
 619                 NewsGroupInfo *ginfo;
 620
 621                 p = strchr(p, ' ');
 622                 if (!p) continue;
 623                 *p = '\0';
 624                 p++;
 625                 name = buf;
 626
 627                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 628                         continue;
 629
 630                 ginfo = news_group_info_new(name, first_num, last_num, type);
 631
 632                 if (!last)
 633                         last = list = g_slist_append(NULL, ginfo);
 634                 else {
 635                         last = g_slist_append(last, ginfo);
 636                         last = last->next;
 637                 }
 638         }
 639
 640         fclose(fp);
 641         g_free(filename);
 642
 643         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 644
 645         return list;
 646 }
 647
 648 void news_group_list_free(GSList *group_list)
 649 {
 650         GSList *cur;
 651
 652         if (!group_list) return;
 653
 654         for (cur = group_list; cur != NULL; cur = cur->next)
 655                 news_group_info_free((NewsGroupInfo *)cur->data);
 656         g_slist_free(group_list);
 657 }
 658
 659 void news_remove_group_list_cache(Folder *folder)
 660 {
 661         gchar *path, *filename;
 662
 663         g_return_if_fail(folder != NULL);
 664         g_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 665
 666         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 667         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 668         g_free(path);
 669
 670         if (is_file_exist(filename)) {
 671                 if (remove(filename) < 0)
 672                         FILE_OP_ERROR(filename, "remove");
 673         }
 674         g_free(filename);
 675 }
 676
 677 gint news_post(Folder *folder, const gchar *file)
 678 {
 679         gint ok;
 680         char *contents = file_read_to_str_no_recode(file);
 681         NewsSession *session;
 682
 683         g_return_val_if_fail(folder != NULL, -1);
 684         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 685         g_return_val_if_fail(contents != NULL, -1);
 686
 687         session = news_session_get(folder);
 688         if (!session)  {
 689                 g_free(contents);
 690                 return -1;
 691         }
 692
 693         ok = nntp_threaded_post(folder, contents, strlen(contents));
 694
 695         if (ok != NEWSNNTP_NO_ERROR && ok != NEWSNNTP_ERROR_STREAM) {
 696                 ok = nntp_threaded_mode_reader(folder);
 697                 if (ok == NEWSNNTP_NO_ERROR)
 698                         ok = nntp_threaded_post(folder, contents, strlen(contents));
 699         }
 700         g_free(contents);
 701
 702         if (ok == NEWSNNTP_ERROR_STREAM) {
 703                 session_destroy(SESSION(session));
 704                 REMOTE_FOLDER(folder)->session = NULL;
 705         }
 706
 707         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 708 }
 709
 710 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 711 {
 712         size_t len;
 713         char *result = NULL;
 714         int r;
 715
 716         r = nntp_threaded_article(folder, num, &result, &len);
 717
 718         if (r == NEWSNNTP_NO_ERROR) {
 719                 if (str_write_to_file(result, filename) < 0)
 720                         return -1;
 721                 g_free(result);
 722         }
 723
 724         return r;
 725 }
 726
 727 /**
 728  * news_select_group:
 729  * @session: Active NNTP session.
 730  * @group: Newsgroup name.
 731  * @num: Estimated number of articles.
 732  * @first: First article number.
 733  * @last: Last article number.
 734  *
 735  * Select newsgroup @group with the GROUP command if it is not already
 736  * selected in @session, or article numbers need to be returned.
 737  *
 738  * Return value: NNTP result code.
 739  **/
 740 static gint news_select_group(Folder *folder, const gchar *group,
 741                               gint *num, gint *first, gint *last)
 742 {
 743         gint ok;
 744         gint num_, first_, last_;
 745         struct newsnntp_group_info *info = NULL;
 746         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 747
 748         g_return_val_if_fail(session != NULL, -1);
 749
 750         if (!num || !first || !last) {
 751                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 752                         return NEWSNNTP_NO_ERROR;
 753                 num = &num_;
 754                 first = &first_;
 755                 last = &last_;
 756         }
 757
 758         g_free(session->group);
 759         session->group = NULL;
 760
 761         ok = nntp_threaded_group(folder, group, &info);
 762
 763         if (ok != NEWSNNTP_NO_ERROR &&
 764             ok != NEWSNNTP_ERROR_STREAM &&
 765             ok != NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 766                 ok = nntp_threaded_mode_reader(folder);
 767                 if (ok == NEWSNNTP_NO_ERROR)
 768                         ok = nntp_threaded_group(folder, group, &info);
 769         }
 770
 771         if (ok == NEWSNNTP_NO_ERROR && info) {
 772                 session->group = g_strdup(group);
 773                 *num = info->grp_first;
 774                 *first = info->grp_first;
 775                 *last = info->grp_last;
 776                 newsnntp_group_free(info);
 777         } else {
 778                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 779         }
 780         return ok;
 781 }
 782
 783 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 784 {
 785         MsgInfo *msginfo;
 786
 787         /* set MsgInfo */
 788         msginfo = procmsg_msginfo_new();
 789         msginfo->msgnum = item->ovr_article;
 790         msginfo->size = item->ovr_size;
 791
 792         msginfo->date = g_strdup(item->ovr_date);
 793         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 794
 795         msginfo->from = conv_unmime_header(item->ovr_author, NULL);
 796         msginfo->fromname = procheader_get_fromname(msginfo->from);
 797
 798         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL);
 799
 800         remove_return(msginfo->from);
 801         remove_return(msginfo->fromname);
 802         remove_return(msginfo->subject);
 803
 804         if (item->ovr_message_id) {
 805                 gchar *tmp = g_strdup(item->ovr_message_id);
 806                 extract_parenthesis(tmp, '<', '>');
 807                 remove_space(tmp);
 808                 if (*tmp != '\0')
 809                         msginfo->msgid = g_strdup(tmp);
 810                 g_free(tmp);
 811         }
 812
 813         /* FIXME: this is a quick fix; references' meaning was changed
 814          * into having the actual list of references in the References: header.
 815          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 816          * their things properly. */
 817         if (item->ovr_references && *(item->ovr_references)) {
 818                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 819                 guint i = 0;
 820                 char *tmp;
 821                 char *p;
 822                 while (ref_tokens[i]) {
 823                         gchar *cur_ref = ref_tokens[i];
 824                         msginfo->references = references_list_append(msginfo->references,
 825                                         cur_ref);
 826                         i++;
 827                 }
 828                 g_strfreev(ref_tokens);
 829
 830                 tmp = g_strdup(item->ovr_references);
 831                 eliminate_parenthesis(tmp, '(', ')');
 832                 if ((p = strrchr(tmp, '<')) != NULL) {
 833                         extract_parenthesis(p, '<', '>');
 834                         remove_space(p);
 835                         if (*p != '\0')
 836                                 msginfo->inreplyto = g_strdup(p);
 837                 }
 838                 g_free(tmp);
 839         }
 840
 841         return msginfo;
 842 }
 843
 844 static gchar *news_parse_xhdr(clist *hdrlist, MsgInfo *msginfo)
 845 {
 846         struct newsnntp_xhdr_resp_item *hdr;
 847
 848         if (!hdrlist)
 849                 return NULL;
 850
 851         hdr = clist_content(clist_begin(hdrlist));
 852         if (hdr->hdr_article != msginfo->msgnum)
 853                 return NULL;
 854         return g_strdup(hdr->hdr_value);
 855 }
 856
 857 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 858 {
 859         gchar * tmp;
 860         FILE * tmpfp;
 861         gchar buf[BUFFSIZE];
 862
 863         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 864                               G_DIR_SEPARATOR, msginfo);
 865         if (tmp == NULL)
 866                 return -1;
 867
 868         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 869                 FILE_OP_ERROR(tmp, "fopen");
 870                 return -1;
 871         }
 872         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 873                 FILE_OP_ERROR(tmp, "chmod");
 874                 g_warning("can't change file mode\n");
 875         }
 876
 877         get_rfc822_date(buf, sizeof(buf));
 878         if (fprintf(tmpfp, "From: %s\r\n"
 879                        "Newsgroups: %s\r\n"
 880                        "Subject: cmsg cancel <%s>\r\n"
 881                        "Control: cancel <%s>\r\n"
 882                        "Approved: %s\r\n"
 883                        "X-Cancelled-by: %s\r\n"
 884                        "Date: %s\r\n"
 885                        "\r\n"
 886                        "removed with Claws Mail\r\n",
 887                        msginfo->from,
 888                        msginfo->newsgroups,
 889                        msginfo->msgid,
 890                        msginfo->msgid,
 891                        msginfo->from,
 892                        msginfo->from,
 893                        buf) < 0) {
 894                 FILE_OP_ERROR(tmp, "fprintf");
 895                 fclose(tmpfp);
 896                 claws_unlink(tmp);
 897                 g_free(tmp);
 898                 return -1;
 899         }
 900
 901         if (fclose(tmpfp) == EOF) {
 902                 FILE_OP_ERROR(tmp, "fclose");
 903                 claws_unlink(tmp);
 904                 g_free(tmp);
 905                 return -1;
 906         }
 907
 908         news_post(folder, tmp);
 909         remove(tmp);
 910
 911         g_free(tmp);
 912
 913         return 0;
 914 }
 915
 916 static gchar *news_folder_get_path(Folder *folder)
 917 {
 918         gchar *folder_path;
 919
 920         g_return_val_if_fail(folder->account != NULL, NULL);
 921
 922         folder_path = g_strconcat(get_news_cache_dir(),
 923                                   G_DIR_SEPARATOR_S,
 924                                   folder->account->nntp_server,
 925                                   NULL);
 926         return folder_path;
 927 }
 928
 929 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
 930 {
 931         gchar *folder_path, *path;
 932
 933         g_return_val_if_fail(folder != NULL, NULL);
 934         g_return_val_if_fail(item != NULL, NULL);
 935         folder_path = news_folder_get_path(folder);
 936
 937         g_return_val_if_fail(folder_path != NULL, NULL);
 938         if (g_path_is_absolute(folder_path)) {
 939                 if (item->path)
 940                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 941                                            item->path, NULL);
 942                 else
 943                         path = g_strdup(folder_path);
 944         } else {
 945                 if (item->path)
 946                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 947                                            folder_path, G_DIR_SEPARATOR_S,
 948                                            item->path, NULL);
 949                 else
 950                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 951                                            folder_path, NULL);
 952         }
 953         g_free(folder_path);
 954 #ifdef G_OS_WIN32
 955         while (strchr(path, '/'))
 956                 *strchr(path, '/') = '\\';
 957 #endif
 958         return path;
 959 }
 960
 961 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
 962 {
 963         NewsSession *session;
 964         gint i, ok, num, first, last, nummsgs = 0;
 965         gchar *dir;
 966
 967         g_return_val_if_fail(item != NULL, -1);
 968         g_return_val_if_fail(item->folder != NULL, -1);
 969         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 970
 971         session = news_session_get(folder);
 972         g_return_val_if_fail(session != NULL, -1);
 973
 974         *old_uids_valid = TRUE;
 975
 976         news_folder_lock(NEWS_FOLDER(item->folder));
 977
 978         ok = news_select_group(folder, item->path, &num, &first, &last);
 979         if (ok != NEWSNNTP_NO_ERROR) {
 980                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
 981                 news_folder_unlock(NEWS_FOLDER(item->folder));
 982                 return -1;
 983         }
 984
 985         dir = news_folder_get_path(folder);
 986         if (num <= 0)
 987                 remove_all_numbered_files(dir);
 988         else if (last < first)
 989                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
 990                             first, last);
 991         else {
 992                 for (i = first; i <= last; i++) {
 993                         *msgnum_list = g_slist_prepend(*msgnum_list,
 994                                                        GINT_TO_POINTER(i));
 995                         nummsgs++;
 996                 }
 997                 debug_print("removing old messages from %d to %d in %s\n",
 998                             first, last, dir);
 999                 remove_numbered_files(dir, 1, first - 1);
1000         }
1001         g_free(dir);
1002         news_folder_unlock(NEWS_FOLDER(item->folder));
1003         return nummsgs;
1004 }
1005
1006 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1007 {
1008         msginfo->flags.tmp_flags = 0;
1009         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1010                 if (item->folder->newsart &&
1011                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1012                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1013
1014                 } else {
1015                         if (!item->folder->newsart)
1016                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1017                         g_hash_table_insert(item->folder->newsart,
1018                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1019                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1020                 }
1021         } else {
1022                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1023         }
1024 }
1025
1026 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1027 {
1028         NewsSession *session;
1029         MsgInfo *msginfo = NULL;
1030         gint ok;
1031         struct newsnntp_xover_resp_item *result = NULL;
1032         clist *hdrlist = NULL;
1033
1034         session = news_session_get(folder);
1035         g_return_val_if_fail(session != NULL, NULL);
1036         g_return_val_if_fail(item != NULL, NULL);
1037         g_return_val_if_fail(item->folder != NULL, NULL);
1038         g_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1039
1040         log_message(LOG_PROTOCOL, _("getting xover %d in %s...\n"),
1041                     num, item->path);
1042         news_folder_lock(NEWS_FOLDER(item->folder));
1043
1044         ok = nntp_threaded_xover(folder, num, num, &result, NULL);
1045         if (ok != NEWSNNTP_NO_ERROR) {
1046                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1047                 if (ok == NEWSNNTP_ERROR_STREAM) {
1048                         session_destroy(SESSION(session));
1049                         REMOTE_FOLDER(item->folder)->session = NULL;
1050                 }
1051                 news_folder_unlock(NEWS_FOLDER(item->folder));
1052                 return NULL;
1053         }
1054
1055         msginfo = news_parse_xover(result);
1056         xover_resp_item_free(result);
1057         if (!msginfo) {
1058                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1059         }
1060
1061         if(!msginfo) {
1062                 news_folder_unlock(NEWS_FOLDER(item->folder));
1063                 return NULL;
1064         }
1065
1066         msginfo->folder = item;
1067
1068         news_set_msg_flags(item, msginfo);
1069         msginfo->flags.tmp_flags |= MSG_NEWS;
1070         msginfo->newsgroups = g_strdup(item->path);
1071
1072         ok = nntp_threaded_xhdr(folder, "to", num, num, &hdrlist);
1073
1074         if (ok != NEWSNNTP_NO_ERROR) {
1075                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1076                 if (ok == NEWSNNTP_ERROR_STREAM) {
1077                         session_destroy(SESSION(session));
1078                         REMOTE_FOLDER(item->folder)->session = NULL;
1079                 }
1080                 news_folder_unlock(NEWS_FOLDER(item->folder));
1081                 return msginfo;
1082         }
1083
1084         msginfo->to = news_parse_xhdr(hdrlist, msginfo);
1085         newsnntp_xhdr_free(hdrlist);
1086
1087         ok = nntp_threaded_xhdr(folder, "cc", num, num, &hdrlist);
1088
1089         if (ok != NEWSNNTP_NO_ERROR) {
1090                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1091                 if (ok == NEWSNNTP_ERROR_STREAM) {
1092                         session_destroy(SESSION(session));
1093                         REMOTE_FOLDER(item->folder)->session = NULL;
1094                 }
1095                 news_folder_unlock(NEWS_FOLDER(item->folder));
1096                 return msginfo;
1097         }
1098
1099         msginfo->cc = news_parse_xhdr(hdrlist, msginfo);
1100         newsnntp_xhdr_free(hdrlist);
1101
1102         news_folder_unlock(NEWS_FOLDER(item->folder));
1103         return msginfo;
1104 }
1105
1106 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1107 {
1108         GSList *newlist = NULL;
1109         GSList *llast = NULL;
1110         MsgInfo *msginfo;
1111         gint ok;
1112         clist *msglist = NULL;
1113         clistiter *cur;
1114         g_return_val_if_fail(session != NULL, NULL);
1115         g_return_val_if_fail(item != NULL, NULL);
1116
1117         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1118                     begin, end, item->path);
1119
1120         news_folder_lock(NEWS_FOLDER(item->folder));
1121
1122         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1123
1124         if (ok != NEWSNNTP_NO_ERROR) {
1125                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1126                 if (ok == NEWSNNTP_ERROR_STREAM) {
1127                         session_destroy(SESSION(session));
1128                         REMOTE_FOLDER(item->folder)->session = NULL;
1129                 }
1130                 news_folder_unlock(NEWS_FOLDER(item->folder));
1131                 return NULL;
1132         }
1133
1134         if (msglist) {
1135                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1136                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1137                         msginfo = news_parse_xover(ritem);
1138
1139                         if (!msginfo) {
1140                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1141                                 continue;
1142                         }
1143
1144                         msginfo->folder = item;
1145                         news_set_msg_flags(item, msginfo);
1146                         msginfo->flags.tmp_flags |= MSG_NEWS;
1147                         msginfo->newsgroups = g_strdup(item->path);
1148
1149                         if (!newlist)
1150                                 llast = newlist = g_slist_append(newlist, msginfo);
1151                         else {
1152                                 llast = g_slist_append(llast, msginfo);
1153                                 llast = llast->next;
1154                         }
1155                 }
1156                 newsnntp_xover_resp_list_free(msglist);
1157         }
1158
1159         news_folder_unlock(NEWS_FOLDER(item->folder));
1160
1161         session_set_access_time(SESSION(session));
1162
1163         return newlist;
1164 }
1165
1166 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1167 {
1168         NewsSession *session;
1169         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1170         guint first, last, next;
1171         guint tofetch, fetched;
1172
1173         g_return_val_if_fail(folder != NULL, NULL);
1174         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1175         g_return_val_if_fail(msgnum_list != NULL, NULL);
1176         g_return_val_if_fail(item != NULL, NULL);
1177
1178         session = news_session_get(folder);
1179         g_return_val_if_fail(session != NULL, NULL);
1180
1181         tmp_msgnum_list = g_slist_copy(msgnum_list);
1182         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1183
1184         progressindicator_start(PROGRESS_TYPE_NETWORK);
1185         tofetch = g_slist_length(tmp_msgnum_list);
1186         fetched = 0;
1187
1188         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1189         last = first;
1190
1191         news_folder_lock(NEWS_FOLDER(item->folder));
1192
1193         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1194                 next = GPOINTER_TO_INT(elem->data);
1195                 if(next != (last + 1)) {
1196 /*                      session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1197                         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1198 */
1199                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1200                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1201                         fetched = last - first + 1;
1202                         first = next;
1203                 }
1204                 last = next;
1205         }
1206
1207         news_folder_unlock(NEWS_FOLDER(item->folder));
1208
1209 /*      session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1210         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1211 */
1212         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1213         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1214
1215         g_slist_free(tmp_msgnum_list);
1216
1217         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1218
1219         return msginfo_list;
1220 }
1221
1222 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1223 {
1224         return TRUE;
1225 }
1226
1227 void news_synchronise(FolderItem *item, gint days)
1228 {
1229         news_gtk_synchronise(item, days);
1230 }
1231
1232 static gint news_rename_folder(Folder *folder, FolderItem *item,
1233                                 const gchar *name)
1234 {
1235         gchar *path;
1236
1237         g_return_val_if_fail(folder != NULL, -1);
1238         g_return_val_if_fail(item != NULL, -1);
1239         g_return_val_if_fail(item->path != NULL, -1);
1240         g_return_val_if_fail(name != NULL, -1);
1241
1242         path = folder_item_get_path(item);
1243         if (!is_dir_exist(path))
1244                 make_dir_hier(path);
1245
1246         g_free(item->name);
1247         item->name = g_strdup(name);
1248
1249         return 0;
1250 }
1251
1252 static gint news_remove_folder(Folder *folder, FolderItem *item)
1253 {
1254         gchar *path;
1255
1256         g_return_val_if_fail(folder != NULL, -1);
1257         g_return_val_if_fail(item != NULL, -1);
1258         g_return_val_if_fail(item->path != NULL, -1);
1259
1260         path = folder_item_get_path(item);
1261         if (remove_dir_recursive(path) < 0) {
1262                 g_warning("can't remove directory `%s'\n", path);
1263                 g_free(path);
1264                 return -1;
1265         }
1266
1267         g_free(path);
1268         folder_item_remove(item);
1269         return 0;
1270 }
1271
1272 #else
1273 #include <glib.h>
1274 #include <glib/gi18n.h>
1275 #include <gtk/gtk.h>
1276 #include "folder.h"
1277 #include "alertpanel.h"
1278
1279 static FolderClass news_class;
1280
1281 static void warn_etpan(void)
1282 {
1283         static gboolean missing_news_warning = TRUE;
1284         if (missing_news_warning) {
1285                 missing_news_warning = FALSE;
1286                 alertpanel_error(
1287                         _("You have one or more News accounts "
1288                           "defined. However this version of "
1289                           "Claws Mail has been built without "
1290                           "News support; your News account(s) are "
1291                           "disabled.\n\n"
1292                           "You probably need to "
1293                           "install libetpan and recompile "
1294                           "Claws Mail."));
1295         }
1296 }
1297 static Folder *news_folder_new(const gchar *name, const gchar *path)
1298 {
1299         warn_etpan();
1300         return NULL;
1301 }
1302 void news_group_list_free(GSList *group_list)
1303 {
1304         warn_etpan();
1305 }
1306 void news_remove_group_list_cache(Folder *folder)
1307 {
1308         warn_etpan();
1309 }
1310 int news_folder_locked(Folder *folder)
1311 {
1312         warn_etpan();
1313         return 0;
1314 }
1315 gint news_post(Folder *folder, const gchar *file)
1316 {
1317         warn_etpan();
1318         return -1;
1319 }
1320
1321 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1322 {
1323         warn_etpan();
1324         return -1;
1325 }
1326
1327 GSList *news_get_group_list(Folder *folder)
1328 {
1329         warn_etpan();
1330         return NULL;
1331 }
1332
1333
1334 FolderClass *news_get_class(void)
1335 {
1336         if (news_class.idstr == NULL) {
1337                 news_class.type = F_NEWS;
1338                 news_class.idstr = "news";
1339                 news_class.uistr = "News";
1340
1341                 /* Folder functions */
1342                 news_class.new_folder = news_folder_new;
1343         };
1344
1345         return &news_class;
1346 }
1347
1348
1349 #endif