src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 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 2 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, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <dirent.h>
  31 #include <unistd.h>
  32
  33 #include "intl.h"
  34 #include "news.h"
  35 #include "nntp.h"
  36 #include "socket.h"
  37 #include "recv.h"
  38 #include "procmsg.h"
  39 #include "procheader.h"
  40 #include "folder.h"
  41 #include "session.h"
  42 #include "statusbar.h"
  43 #include "codeconv.h"
  44 #include "utils.h"
  45 #include "prefs_common.h"
  46 #include "prefs_account.h"
  47 #include "inputdialog.h"
  48 #include "alertpanel.h"
  49
  50 #define NNTP_PORT       119
  51
  52 static Session *news_session_new         (const gchar   *server,
  53                                           gushort        port,
  54                                           const gchar   *userid,
  55                                           const gchar   *passwd);
  56
  57 static gint news_get_article_cmd         (NNTPSession   *session,
  58                                           const gchar   *cmd,
  59                                           gint           num,
  60                                           gchar         *filename);
  61 static gint news_get_article             (NNTPSession   *session,
  62                                           gint           num,
  63                                           gchar         *filename);
  64 static gint news_get_header              (NNTPSession   *session,
  65                                           gint           num,
  66                                           gchar         *filename);
  67
  68 static gint news_select_group            (NNTPSession   *session,
  69                                           const gchar   *group);
  70 static GSList *news_get_uncached_articles(NNTPSession   *session,
  71                                           FolderItem    *item,
  72                                           gint           cache_last,
  73                                           gint          *rfirst,
  74                                           gint          *rlast);
  75 static MsgInfo *news_parse_xover         (const gchar   *xover_str);
  76 static gchar *news_parse_xhdr            (const gchar   *xhdr_str,
  77                                           MsgInfo       *msginfo);
  78 static GSList *news_delete_old_articles  (GSList        *alist,
  79                                           FolderItem    *item,
  80                                           gint           first);
  81 static void news_delete_all_articles     (FolderItem    *item);
  82
  83
  84 static Session *news_session_new(const gchar *server, gushort port,
  85                                  const gchar *userid, const gchar *passwd)
  86 {
  87         gchar buf[NNTPBUFSIZE];
  88         NNTPSession *session;
  89         NNTPSockInfo *nntp_sock;
  90
  91         g_return_val_if_fail(server != NULL, NULL);
  92
  93         log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
  94
  95         if (userid && passwd)
  96                 nntp_sock = nntp_open_auth(server, port, buf, userid, passwd);
  97         else
  98                 nntp_sock = nntp_open(server, port, buf);
  99         if (nntp_sock == NULL)
 100                 return NULL;
 101
 102         session = g_new(NNTPSession, 1);
 103         SESSION(session)->type      = SESSION_NEWS;
 104         SESSION(session)->server    = g_strdup(server);
 105         session->nntp_sock          = nntp_sock;
 106         SESSION(session)->sock      = nntp_sock->sock;
 107         SESSION(session)->connected = TRUE;
 108         SESSION(session)->phase     = SESSION_READY;
 109         SESSION(session)->data      = NULL;
 110         session->group = NULL;
 111
 112         return SESSION(session);
 113 }
 114
 115 void news_session_destroy(NNTPSession *session)
 116 {
 117         nntp_close(session->nntp_sock);
 118         session->nntp_sock = NULL;
 119         SESSION(session)->sock = NULL;
 120
 121         g_free(session->group);
 122 }
 123
 124 static gchar *news_query_password(const gchar *server, const gchar *user)
 125 {
 126         gchar *message;
 127         gchar *pass;
 128
 129         message = g_strdup_printf(_("Input password for %s on %s:"),
 130                                   user, server);
 131         pass = input_dialog_with_invisible(_("Input password"), message, NULL);
 132         g_free(message);
 133
 134         return pass;
 135 }
 136
 137 static Session *news_session_new_for_folder(Folder *folder)
 138 {
 139         Session *session;
 140         PrefsAccount *ac;
 141         const gchar *userid = NULL;
 142         gchar *passwd = NULL;
 143
 144         g_return_val_if_fail(folder != NULL, NULL);
 145         g_return_val_if_fail(folder->account != NULL, NULL);
 146
 147         ac = folder->account;
 148         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 149                 userid = ac->userid;
 150                 if (ac->passwd && ac->passwd[0])
 151                         passwd = g_strdup(ac->passwd);
 152                 else
 153                         passwd = news_query_password(ac->nntp_server, userid);
 154         }
 155
 156         session = news_session_new(ac->nntp_server,
 157                                    ac->set_nntpport ? ac->nntpport : NNTP_PORT,
 158                                    userid, passwd);
 159         g_free(passwd);
 160
 161         return session;
 162 }
 163
 164 NNTPSession *news_session_get(Folder *folder)
 165 {
 166         NNTPSession *session;
 167
 168         g_return_val_if_fail(folder != NULL, NULL);
 169         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 170         g_return_val_if_fail(folder->account != NULL, NULL);
 171
 172         if (!REMOTE_FOLDER(folder)->session) {
 173                 REMOTE_FOLDER(folder)->session =
 174                         news_session_new_for_folder(folder);
 175                 return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 176         }
 177
 178         session = NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 179
 180         if (nntp_mode(session->nntp_sock, FALSE) != NN_SUCCESS) {
 181                 log_warning(_("NNTP connection to %s:%d has been"
 182                               " disconnected. Reconnecting...\n"),
 183                             folder->account->nntp_server,
 184                             folder->account->set_nntpport ?
 185                             folder->account->nntpport : NNTP_PORT);
 186                 session_destroy(REMOTE_FOLDER(folder)->session);
 187                 REMOTE_FOLDER(folder)->session =
 188                         news_session_new_for_folder(folder);
 189         }
 190
 191         return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 192 }
 193
 194 GSList *news_get_article_list(Folder *folder, FolderItem *item,
 195                               gboolean use_cache)
 196 {
 197         GSList *alist;
 198         NNTPSession *session;
 199
 200         g_return_val_if_fail(folder != NULL, NULL);
 201         g_return_val_if_fail(item != NULL, NULL);
 202         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 203
 204         session = news_session_get(folder);
 205
 206         if (!session) {
 207                 alist = procmsg_read_cache(item, FALSE);
 208                 item->last_num = procmsg_get_last_num_in_cache(alist);
 209         } else if (use_cache) {
 210                 GSList *newlist;
 211                 gint cache_last;
 212                 gint first, last;
 213
 214                 alist = procmsg_read_cache(item, FALSE);
 215
 216                 cache_last = procmsg_get_last_num_in_cache(alist);
 217                 newlist = news_get_uncached_articles
 218                         (session, item, cache_last, &first, &last);
 219                 alist = news_delete_old_articles(alist, item, first);
 220
 221                 alist = g_slist_concat(alist, newlist);
 222                 item->last_num = last;
 223         } else {
 224                 gint last;
 225
 226                 alist = news_get_uncached_articles
 227                         (session, item, 0, NULL, &last);
 228                 news_delete_all_articles(item);
 229                 item->last_num = last;
 230         }
 231
 232         procmsg_set_flags(alist, item);
 233
 234         statusbar_pop_all();
 235
 236         return alist;
 237 }
 238
 239 gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 240 {
 241         gchar *path, *filename;
 242         gint ok;
 243
 244         g_return_val_if_fail(folder != NULL, NULL);
 245         g_return_val_if_fail(item != NULL, NULL);
 246
 247         path = folder_item_get_path(item);
 248         if (!is_dir_exist(path))
 249                 make_dir_hier(path);
 250
 251         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 252         g_free(path);
 253
 254         if (is_file_exist(filename)) {
 255                 debug_print(_("article %d has been already cached.\n"), num);
 256                 return filename;
 257         }
 258
 259         if (!REMOTE_FOLDER(folder)->session) {
 260                 g_free(filename);
 261                 return NULL;
 262         }
 263
 264         ok = news_select_group(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 265                                item->path);
 266         if (ok != NN_SUCCESS) {
 267                 g_warning(_("can't select group %s\n"), item->path);
 268                 g_free(filename);
 269                 return NULL;
 270         }
 271
 272         debug_print(_("getting article %d...\n"), num);
 273         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 274                               num, filename);
 275         statusbar_pop_all();
 276         if (ok < 0) {
 277                 g_warning(_("can't read article %d\n"), num);
 278                 g_free(filename);
 279                 return NULL;
 280         }
 281
 282         return filename;
 283 }
 284
 285 void news_scan_group(Folder *folder, FolderItem *item)
 286 {
 287 }
 288
 289 gint news_post(Folder *folder, const gchar *file)
 290 {
 291         NNTPSession *session;
 292         FILE *fp;
 293         gint ok;
 294
 295         g_return_val_if_fail(folder != NULL, -1);
 296         g_return_val_if_fail(folder->type == F_NEWS, -1);
 297         g_return_val_if_fail(file != NULL, -1);
 298
 299         session = news_session_get(folder);
 300         if (!session) return -1;
 301
 302         if ((fp = fopen(file, "r")) == NULL) {
 303                 FILE_OP_ERROR(file, "fopen");
 304                 return -1;
 305         }
 306
 307         ok = nntp_post(session->nntp_sock, fp);
 308         if (ok != NN_SUCCESS) {
 309                 log_warning(_("can't post article.\n"));
 310                 return -1;
 311         }
 312
 313         fclose(fp);
 314
 315         statusbar_pop_all();
 316
 317         return 0;
 318 }
 319
 320 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 321                                  gint num, gchar *filename)
 322 {
 323         gchar *msgid;
 324
 325         if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
 326             != NN_SUCCESS)
 327                 return -1;
 328
 329         debug_print("Message-Id = %s, num = %d\n", msgid, num);
 330         g_free(msgid);
 331
 332         if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
 333                 log_warning(_("can't retrieve article %d\n"), num);
 334                 return -1;
 335         }
 336
 337         return 0;
 338 }
 339
 340 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 341 {
 342         return news_get_article_cmd(session, "ARTICLE", num, filename);
 343 }
 344
 345 static gint news_get_header(NNTPSession *session, gint num, gchar *filename)
 346 {
 347         return news_get_article_cmd(session, "HEAD", num, filename);
 348 }
 349
 350 /**
 351  * news_select_group:
 352  * @session: Active NNTP session.
 353  * @group: Newsgroup name.
 354  *
 355  * Select newsgroup @group with the GROUP command if it is not already
 356  * selected in @session.
 357  *
 358  * Return value: NNTP result code.
 359  **/
 360 static gint news_select_group(NNTPSession *session, const gchar *group)
 361 {
 362         gint ok;
 363         gint num, first, last;
 364
 365         if (session->group && g_strcasecmp(session->group, group) == 0)
 366                 return NN_SUCCESS;
 367
 368         g_free(session->group);
 369         session->group = NULL;
 370
 371         ok = nntp_group(session->nntp_sock, group, &num, &first, &last);
 372         if (ok == NN_SUCCESS)
 373                 session->group = g_strdup(group);
 374
 375         return ok;
 376 }
 377
 378 static GSList *news_get_uncached_articles(NNTPSession *session,
 379                                           FolderItem *item, gint cache_last,
 380                                           gint *rfirst, gint *rlast)
 381 {
 382         gint ok;
 383         gint num = 0, first = 0, last = 0, begin = 0, end = 0;
 384         gchar buf[NNTPBUFSIZE];
 385         GSList *newlist = NULL;
 386         GSList *llast = NULL;
 387         MsgInfo *msginfo;
 388
 389         if (rfirst) *rfirst = 0;
 390         if (rlast)  *rlast  = 0;
 391
 392         g_return_val_if_fail(session != NULL, NULL);
 393         g_return_val_if_fail(item != NULL, NULL);
 394         g_return_val_if_fail(item->folder != NULL, NULL);
 395         g_return_val_if_fail(item->folder->type == F_NEWS, NULL);
 396
 397         g_free(session->group);
 398         session->group = NULL;
 399
 400         ok = nntp_group(session->nntp_sock, item->path,
 401                         &num, &first, &last);
 402         if (ok != NN_SUCCESS) {
 403                 log_warning(_("can't set group: %s\n"), item->path);
 404                 return NULL;
 405         }
 406         session->group = g_strdup(item->path);
 407
 408         /* calculate getting overview range */
 409         if (first > last) {
 410                 log_warning(_("invalid article range: %d - %d\n"),
 411                             first, last);
 412                 return NULL;
 413         }
 414         if (cache_last < first)
 415                 begin = first;
 416         else if (last < cache_last)
 417                 begin = first;
 418         else if (last == cache_last) {
 419                 debug_print(_("no new articles.\n"));
 420                 return NULL;
 421         } else
 422                 begin = cache_last + 1;
 423         end = last;
 424
 425         if (rfirst) *rfirst = first;
 426         if (rlast)  *rlast  = last;
 427
 428         if (prefs_common.max_articles > 0 &&
 429             end - begin + 1 > prefs_common.max_articles)
 430                 begin = end - prefs_common.max_articles + 1;
 431
 432         log_message(_("getting xover %d - %d in %s...\n"),
 433                     begin, end, item->path);
 434         if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
 435                 log_warning(_("can't get xover\n"));
 436                 return NULL;
 437         }
 438
 439         for (;;) {
 440                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 441                         log_warning(_("error occurred while getting xover.\n"));
 442                         return newlist;
 443                 }
 444
 445                 if (buf[0] == '.' && buf[1] == '\r') break;
 446
 447                 msginfo = news_parse_xover(buf);
 448                 if (!msginfo) {
 449                         log_warning(_("invalid xover line: %s\n"), buf);
 450                         continue;
 451                 }
 452
 453                 msginfo->folder = item;
 454                 msginfo->flags = MSG_NEW|MSG_UNREAD|MSG_NEWS;
 455                 msginfo->newsgroups = g_strdup(item->path);
 456
 457                 if (!newlist)
 458                         llast = newlist = g_slist_append(newlist, msginfo);
 459                 else {
 460                         llast = g_slist_append(llast, msginfo);
 461                         llast = llast->next;
 462                 }
 463         }
 464
 465         if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
 466                 log_warning(_("can't get xhdr\n"));
 467                 return newlist;
 468         }
 469
 470         llast = newlist;
 471
 472         for (;;) {
 473                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 474                         log_warning(_("error occurred while getting xhdr.\n"));
 475                         return newlist;
 476                 }
 477
 478                 if (buf[0] == '.' && buf[1] == '\r') break;
 479                 if (!llast) {
 480                         g_warning("llast == NULL\n");
 481                         continue;
 482                 }
 483
 484                 msginfo = (MsgInfo *)llast->data;
 485                 msginfo->to = news_parse_xhdr(buf, msginfo);
 486
 487                 llast = llast->next;
 488         }
 489
 490         if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
 491                 log_warning(_("can't get xhdr\n"));
 492                 return newlist;
 493         }
 494
 495         llast = newlist;
 496
 497         for (;;) {
 498                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 499                         log_warning(_("error occurred while getting xhdr.\n"));
 500                         return newlist;
 501                 }
 502
 503                 if (buf[0] == '.' && buf[1] == '\r') break;
 504                 if (!llast) {
 505                         g_warning("llast == NULL\n");
 506                         continue;
 507                 }
 508
 509                 msginfo = (MsgInfo *)llast->data;
 510                 msginfo->cc = news_parse_xhdr(buf, msginfo);
 511
 512                 llast = llast->next;
 513         }
 514
 515         return newlist;
 516 }
 517
 518 #define PARSE_ONE_PARAM(p, srcp) \
 519 { \
 520         p = strchr(srcp, '\t'); \
 521         if (!p) return NULL; \
 522         else \
 523                 *p++ = '\0'; \
 524 }
 525
 526 static MsgInfo *news_parse_xover(const gchar *xover_str)
 527 {
 528         MsgInfo *msginfo;
 529         gchar buf[NNTPBUFSIZE];
 530         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 531         gchar *p;
 532         gint num, size_int, line_int;
 533         gchar *xover_buf;
 534
 535         Xalloca(xover_buf, strlen(xover_str) + 1, return NULL);
 536         strcpy(xover_buf, xover_str);
 537
 538         PARSE_ONE_PARAM(subject, xover_buf);
 539         PARSE_ONE_PARAM(sender, subject);
 540         PARSE_ONE_PARAM(date, sender);
 541         PARSE_ONE_PARAM(msgid, date);
 542         PARSE_ONE_PARAM(ref, msgid);
 543         PARSE_ONE_PARAM(size, ref);
 544         PARSE_ONE_PARAM(line, size);
 545
 546         tmp = strchr(line, '\t');
 547         if (!tmp) tmp = strchr(line, '\r');
 548         if (!tmp) tmp = strchr(line, '\n');
 549         if (tmp) *tmp = '\0';
 550
 551         num = atoi(xover_str);
 552         size_int = atoi(size);
 553         line_int = atoi(line);
 554
 555         /* set MsgInfo */
 556         msginfo = g_new0(MsgInfo, 1);
 557         msginfo->msgnum = num;
 558         msginfo->size = size_int;
 559
 560         msginfo->date = g_strdup(date);
 561         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 562
 563         conv_unmime_header(buf, sizeof(buf), sender, NULL);
 564         msginfo->from = g_strdup(buf);
 565         msginfo->fromname = procheader_get_fromname(buf);
 566
 567         conv_unmime_header(buf, sizeof(buf), subject, NULL);
 568         msginfo->subject = g_strdup(buf);
 569
 570         extract_parenthesis(msgid, '<', '>');
 571         remove_space(msgid);
 572         if (*msgid != '\0')
 573                 msginfo->msgid = g_strdup(msgid);
 574
 575         msginfo->references = g_strdup(ref);
 576         eliminate_parenthesis(ref, '(', ')');
 577         if ((p = strrchr(ref, '<')) != NULL) {
 578                 extract_parenthesis(p, '<', '>');
 579                 remove_space(p);
 580                 if (*p != '\0')
 581                         msginfo->inreplyto = g_strdup(p);
 582         }
 583
 584         return msginfo;
 585 }
 586
 587 static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
 588 {
 589         gchar buf[NNTPBUFSIZE];
 590         gchar *p;
 591         gchar *tmp;
 592         gint num;
 593
 594         p = strchr(xhdr_str, ' ');
 595         if (!p)
 596                 return NULL;
 597         else
 598                 p++;
 599
 600         num = atoi(xhdr_str);
 601         if (msginfo->msgnum != num) return NULL;
 602
 603         tmp = strchr(p, '\r');
 604         if (!tmp) tmp = strchr(p, '\n');
 605
 606         if (tmp)
 607                 return g_strndup(p, tmp - p);
 608         else
 609                 return g_strdup(p);
 610 }
 611
 612 static GSList *news_delete_old_articles(GSList *alist, FolderItem *item,
 613                                         gint first)
 614 {
 615         GSList *cur, *next;
 616         MsgInfo *msginfo;
 617         gchar *dir;
 618
 619         g_return_val_if_fail(item != NULL, alist);
 620         g_return_val_if_fail(item->folder != NULL, alist);
 621         g_return_val_if_fail(item->folder->type == F_NEWS, alist);
 622
 623         if (first < 2) return alist;
 624
 625         debug_print(_("Deleting cached articles 1 - %d ... "), first - 1);
 626
 627         dir = folder_item_get_path(item);
 628         remove_numbered_files(dir, 1, first - 1);
 629         g_free(dir);
 630
 631         for (cur = alist; cur != NULL; ) {
 632                 next = cur->next;
 633
 634                 msginfo = (MsgInfo *)cur->data;
 635                 if (msginfo && msginfo->msgnum < first) {
 636                         procmsg_msginfo_free(msginfo);
 637                         alist = g_slist_remove(alist, msginfo);
 638                 }
 639
 640                 cur = next;
 641         }
 642
 643         return alist;
 644 }
 645
 646 static void news_delete_all_articles(FolderItem *item)
 647 {
 648         gchar *dir;
 649
 650         g_return_if_fail(item != NULL);
 651         g_return_if_fail(item->folder != NULL);
 652         g_return_if_fail(item->folder->type == F_NEWS);
 653
 654         debug_print(_("\tDeleting all cached articles... "));
 655
 656         dir = folder_item_get_path(item);
 657         if (!is_dir_exist(dir))
 658                 make_dir_hier(dir);
 659         remove_all_numbered_files(dir);
 660         g_free(dir);
 661
 662         debug_print(_("done.\n"));
 663 }
 664
 665 /*
 666   news_get_group_list returns a strings list.
 667   These strings are the names of the newsgroups of a server.
 668   item is the FolderItem of the news server.
 669   The names of the newsgroups are cached into a file so that
 670   when the function is called again, there is no need to make
 671   a request to the server.
 672  */
 673
 674 GSList * news_get_group_list(FolderItem *item)
 675 {
 676         gchar *path, *filename;
 677         gint ok;
 678         NNTPSession *session;
 679         GSList * group_list = NULL;
 680         FILE * f;
 681         gchar buf[NNTPBUFSIZE];
 682         int len;
 683
 684         if (item == NULL)
 685           return NULL;
 686
 687         path = folder_item_get_path(item);
 688
 689         if (!is_dir_exist(path))
 690                 make_dir_hier(path);
 691
 692         filename = g_strconcat(path, G_DIR_SEPARATOR_S, GROUPLIST_FILE, NULL);
 693         g_free(path);
 694
 695         session = news_session_get(item->folder);
 696
 697         if (session == NULL)
 698           return NULL;
 699
 700         if (is_file_exist(filename)) {
 701                 debug_print(_("group list has been already cached.\n"));
 702         }
 703         else {
 704             ok = nntp_list(session->nntp_sock);
 705             if (ok != NN_SUCCESS)
 706               return NULL;
 707
 708             if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 709               log_warning(_("can't retrieve group list\n"));
 710               return NULL;
 711             }
 712         }
 713
 714         f = fopen(filename, "r");
 715         while (fgets(buf, NNTPBUFSIZE, f)) {
 716             char * s;
 717
 718             len = 0;
 719             while ((buf[len] != 0) && (buf[len] != ' '))
 720               len++;
 721             buf[len] = 0;
 722             s = g_strdup(buf);
 723
 724             group_list = g_slist_append(group_list, s);
 725         }
 726         fclose(f);
 727         g_free(filename);
 728
 729         group_list = g_slist_sort(group_list, (GCompareFunc) g_strcasecmp);
 730
 731         return group_list;
 732 }
 733
 734 /*
 735   remove the cache file of the names of the newsgroups.
 736  */
 737
 738 void news_reset_group_list(FolderItem *item)
 739 {
 740         gchar *path, *filename;
 741
 742         debug_print(_("\tDeleting cached group list... "));
 743         path = folder_item_get_path(item);
 744         if (!is_dir_exist(path))
 745                 make_dir_hier(path);
 746
 747         filename = g_strconcat(path, G_DIR_SEPARATOR_S, GROUPLIST_FILE, NULL);
 748         g_free(path);
 749         if (remove(filename) != 0)
 750           log_warning(_("can't delete cached group list %s\n"), filename);
 751         g_free(filename);
 752 }