src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999,2000 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 static gint news_get_article_cmd         (NNTPSession   *session,
  51                                           const gchar   *cmd,
  52                                           gint           num,
  53                                           gchar         *filename);
  54 static gint news_get_article             (NNTPSession   *session,
  55                                           gint           num,
  56                                           gchar         *filename);
  57 static gint news_get_header              (NNTPSession   *session,
  58                                           gint           num,
  59                                           gchar         *filename);
  60
  61 static gint news_select_group            (NNTPSession   *session,
  62                                           const char    *group);
  63 static GSList *news_get_uncached_articles(NNTPSession   *session,
  64                                           FolderItem    *item,
  65                                           gint           cache_last,
  66                                           gint          *rfirst,
  67                                           gint          *rlast);
  68 static MsgInfo *news_parse_xover         (const gchar   *xover_str);
  69 static gchar * news_parse_xhdr           (const gchar *xover_str,
  70                                           MsgInfo * info);
  71 static GSList *news_delete_old_article   (GSList        *alist,
  72                                           gint           first);
  73 static void news_delete_all_article      (FolderItem    *item);
  74
  75
  76 static Session *news_session_new(const gchar *server, gushort port,
  77                                  const gchar *userid, const gchar *passwd)
  78 {
  79         gchar buf[NNTPBUFSIZE];
  80         NNTPSession *session;
  81         NNTPSockInfo *nntp_sock;
  82
  83         g_return_val_if_fail(server != NULL, NULL);
  84
  85         log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
  86
  87         if (userid && passwd)
  88                 nntp_sock = nntp_open_auth(server, port, buf, userid, passwd);
  89         else
  90                 nntp_sock = nntp_open(server, port, buf);
  91         if (nntp_sock == NULL)
  92                 return NULL;
  93
  94         session = g_new(NNTPSession, 1);
  95         SESSION(session)->type      = SESSION_NEWS;
  96         SESSION(session)->server    = g_strdup(server);
  97         session->nntp_sock          = nntp_sock;
  98         SESSION(session)->sock      = nntp_sock->sock;
  99         SESSION(session)->connected = TRUE;
 100         SESSION(session)->phase     = SESSION_READY;
 101         SESSION(session)->data      = NULL;
 102         session->group = NULL;
 103
 104         return SESSION(session);
 105 }
 106
 107 void news_session_destroy(NNTPSession *session)
 108 {
 109         nntp_close(session->nntp_sock);
 110         session->nntp_sock = NULL;
 111         SESSION(session)->sock = NULL;
 112
 113         g_free(session->group);
 114 }
 115
 116 static gchar *news_query_password(const gchar *server,
 117                                   const gchar *user)
 118 {
 119         gchar *message;
 120         gchar *pass;
 121
 122         message = g_strdup_printf(_("Input password for %s on %s:"),
 123                                   user, server);
 124
 125         pass = input_dialog_with_invisible(_("Input password"),
 126                                            message, NULL);
 127         g_free(message);
 128 /*      manage_window_focus_in(inc_dialog->mainwin->window, */
 129 /*                             NULL, NULL); */
 130         return pass;
 131 }
 132
 133 static Session *news_session_new_for_folder(Folder *folder)
 134 {
 135         Session *session;
 136         PrefsAccount *ac;
 137         const gchar *userid;
 138         gchar *passwd;
 139
 140         ac = folder->account;
 141         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 142                 userid = ac->userid;
 143                 if (ac->passwd && ac->passwd[0])
 144                         passwd = g_strdup(ac->passwd);
 145                 else {
 146                         passwd = news_query_password(ac->nntp_server, userid);
 147                         if (!passwd)
 148                                 userid = NULL;
 149                 }
 150         } else {
 151                 userid = passwd = NULL;
 152         }
 153         session = news_session_new(ac->nntp_server, 119, userid, passwd);
 154         g_free(passwd);
 155         return session;
 156 }
 157
 158 NNTPSession *news_session_get(Folder *folder)
 159 {
 160         NNTPSession *session;
 161
 162         g_return_val_if_fail(folder != NULL, NULL);
 163         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 164         g_return_val_if_fail(folder->account != NULL, NULL);
 165
 166         if (!REMOTE_FOLDER(folder)->session) {
 167                 REMOTE_FOLDER(folder)->session =
 168                         news_session_new_for_folder(folder);
 169         } else {
 170                 session = NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 171                 if (nntp_mode(session->nntp_sock, FALSE) != NN_SUCCESS) {
 172                         log_warning(_("NNTP connection to %s:%d has been"
 173                                       " disconnected. Reconnecting...\n"),
 174                                     folder->account->nntp_server, 119);
 175                         session_destroy(REMOTE_FOLDER(folder)->session);
 176                         REMOTE_FOLDER(folder)->session =
 177                                 news_session_new_for_folder(folder);
 178                 }
 179         }
 180
 181         return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 182 }
 183
 184 GSList *news_get_article_list(Folder *folder, FolderItem *item,
 185                               gboolean use_cache)
 186 {
 187         GSList *alist;
 188         NNTPSession *session;
 189
 190         g_return_val_if_fail(folder != NULL, NULL);
 191         g_return_val_if_fail(item != NULL, NULL);
 192         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 193
 194         session = news_session_get(folder);
 195
 196         if (!session) {
 197                 alist = procmsg_read_cache(item, FALSE);
 198                 item->last_num = procmsg_get_last_num_in_cache(alist);
 199         } else if (use_cache) {
 200                 GSList *newlist;
 201                 gint cache_last;
 202                 gint first, last;
 203
 204                 alist = procmsg_read_cache(item, FALSE);
 205
 206                 cache_last = procmsg_get_last_num_in_cache(alist);
 207                 newlist = news_get_uncached_articles
 208                         (session, item, cache_last, &first, &last);
 209                 alist = news_delete_old_article(alist, first);
 210
 211                 alist = g_slist_concat(alist, newlist);
 212                 item->last_num = last;
 213         } else {
 214                 gint last;
 215
 216                 alist = news_get_uncached_articles
 217                         (session, item, 0, NULL, &last);
 218                 news_delete_all_article(item);
 219                 item->last_num = last;
 220         }
 221
 222         procmsg_set_flags(alist, item);
 223
 224         statusbar_pop_all();
 225
 226         return alist;
 227 }
 228
 229 gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 230 {
 231         gchar *path, *filename;
 232         gint ok;
 233
 234         g_return_val_if_fail(folder != NULL, NULL);
 235         g_return_val_if_fail(item != NULL, NULL);
 236
 237         path = folder_item_get_path(item);
 238         if (!is_dir_exist(path))
 239                 make_dir_hier(path);
 240
 241         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 242         g_free(path);
 243
 244         if (is_file_exist(filename)) {
 245                 debug_print(_("article %d has been already cached.\n"), num);
 246                 return filename;
 247         }
 248
 249         if (!REMOTE_FOLDER(folder)->session) {
 250                 g_free(filename);
 251                 return NULL;
 252         }
 253
 254         ok = news_select_group(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 255                                item->path);
 256         if (ok != NN_SUCCESS) {
 257                 g_warning(_("can't select group %s\n"), item->path);
 258                 g_free(filename);
 259                 return NULL;
 260         }
 261
 262         debug_print(_("getting article %d...\n"), num);
 263         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 264                               num, filename);
 265         statusbar_pop_all();
 266         if (ok < 0) {
 267                 g_warning(_("can't read article %d\n"), num);
 268                 g_free(filename);
 269                 return NULL;
 270         }
 271
 272         return filename;
 273 }
 274
 275 void news_scan_group(Folder *folder, FolderItem *item)
 276 {
 277 }
 278
 279 gint news_post(Folder *folder, const gchar *file)
 280 {
 281         NNTPSession *session;
 282         FILE *fp;
 283         gint ok;
 284
 285         g_return_val_if_fail(folder != NULL, -1);
 286         g_return_val_if_fail(folder->type == F_NEWS, -1);
 287         g_return_val_if_fail(file != NULL, -1);
 288
 289         session = news_session_get(folder);
 290         if (!session) return -1;
 291
 292         if ((fp = fopen(file, "r")) == NULL) {
 293                 FILE_OP_ERROR(file, "fopen");
 294                 return -1;
 295         }
 296
 297         ok = nntp_post(session->nntp_sock, fp);
 298         if (ok != NN_SUCCESS) {
 299                 log_warning(_("can't post article.\n"));
 300                 return -1;
 301         }
 302
 303         fclose(fp);
 304
 305         statusbar_pop_all();
 306
 307         return 0;
 308 }
 309
 310 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 311                                  gint num, gchar *filename)
 312 {
 313         gchar *msgid;
 314
 315         if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
 316             != NN_SUCCESS)
 317                 return -1;
 318
 319         debug_print("Message-Id = %s, num = %d\n", msgid, num);
 320         g_free(msgid);
 321
 322         if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
 323                 log_warning(_("can't retrieve article %d\n"), num);
 324                 return -1;
 325         }
 326
 327         return 0;
 328 }
 329
 330 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 331 {
 332         return news_get_article_cmd(session, "ARTICLE", num, filename);
 333 }
 334
 335 static gint news_get_header(NNTPSession *session, gint num, gchar *filename)
 336 {
 337         return news_get_article_cmd(session, "HEAD", num, filename);
 338 }
 339
 340 /**
 341  * news_select_group:
 342  * @session: Active NNTP session.
 343  * @group: Newsgroup name.
 344  *
 345  * Select newsgroup @group with the GROUP command if it is not already
 346  * selected in @session.
 347  *
 348  * Return value: NNTP result code.
 349  **/
 350 static gint news_select_group(NNTPSession *session,
 351                               const char *group)
 352 {
 353         gint ok;
 354         gint num, first, last;
 355
 356         if (g_strcasecmp(session->group, group) == 0)
 357                 return NN_SUCCESS;
 358
 359         g_free(session->group);
 360         session->group = NULL;
 361
 362         ok = nntp_group(session->nntp_sock, group, &num, &first, &last);
 363
 364         if (ok == NN_SUCCESS)
 365                 session->group = g_strdup(group);
 366
 367         return ok;
 368 }
 369
 370 static GSList *news_get_uncached_articles(NNTPSession *session,
 371                                           FolderItem *item, gint cache_last,
 372                                           gint *rfirst, gint *rlast)
 373 {
 374         gint ok;
 375         gint num = 0, first = 0, last = 0, begin = 0, end = 0;
 376         gchar buf[NNTPBUFSIZE];
 377         GSList *newlist = NULL;
 378         GSList *llast = NULL;
 379         MsgInfo *msginfo;
 380
 381         if (rfirst) *rfirst = 0;
 382         if (rlast)  *rlast  = 0;
 383
 384         g_return_val_if_fail(session != NULL, NULL);
 385         g_return_val_if_fail(item != NULL, NULL);
 386         g_return_val_if_fail(item->folder != NULL, NULL);
 387         g_return_val_if_fail(item->folder->type == F_NEWS, NULL);
 388
 389         g_free(session->group);
 390         session->group = NULL;
 391
 392         ok = nntp_group(session->nntp_sock, item->path,
 393                         &num, &first, &last);
 394         if (ok != NN_SUCCESS) {
 395                 log_warning(_("can't set group: %s\n"), item->path);
 396                 return NULL;
 397         }
 398
 399         session->group = g_strdup(item->path);
 400
 401         /* calculate getting overview range */
 402         if (first > last) {
 403                 log_warning(_("invalid article range: %d - %d\n"),
 404                             first, last);
 405                 return NULL;
 406         }
 407         if (cache_last < first)
 408                 begin = first;
 409         else if (last < cache_last)
 410                 begin = first;
 411         else if (last == cache_last) {
 412                 debug_print(_("no new articles.\n"));
 413                 return NULL;
 414         } else
 415                 begin = cache_last + 1;
 416         end = last;
 417
 418         if (prefs_common.max_articles > 0 &&
 419             end - begin + 1 > prefs_common.max_articles)
 420                 begin = end - prefs_common.max_articles + 1;
 421
 422         log_message(_("getting xover %d - %d in %s...\n"),
 423                     begin, end, item->path);
 424         if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
 425                 log_warning(_("can't get xover\n"));
 426                 return NULL;
 427         }
 428
 429         for (;;) {
 430                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 431                         log_warning(_("error occurred while getting xover.\n"));
 432                         return newlist;
 433                 }
 434
 435                 if (buf[0] == '.' && buf[1] == '\r') break;
 436
 437                 msginfo = news_parse_xover(buf);
 438                 if (!msginfo) {
 439                         log_warning(_("invalid xover line: %s\n"), buf);
 440                         continue;
 441                 }
 442
 443                 msginfo->folder = item;
 444                 msginfo->flags = MSG_NEW|MSG_UNREAD|MSG_NEWS;
 445                 msginfo->newsgroups = g_strdup(item->path);
 446
 447                 if (!newlist)
 448                         llast = newlist = g_slist_append(newlist, msginfo);
 449                 else {
 450                         llast = g_slist_append(llast, msginfo);
 451                         llast = llast->next;
 452                 }
 453         }
 454
 455         if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
 456                 log_warning(_("can't get xhdr\n"));
 457                 return NULL;
 458         }
 459
 460         llast = newlist;
 461
 462         for (;;) {
 463                 gchar * value;
 464
 465                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 466                         log_warning(_("error occurred while getting xover.\n"));
 467                         return newlist;
 468                 }
 469
 470                 if (buf[0] == '.' && buf[1] == '\r') break;
 471
 472                 msginfo = (MsgInfo *) llast->data;
 473
 474                 value = news_parse_xhdr(buf, msginfo);
 475
 476                 if (value)
 477                         msginfo->to = value;
 478
 479                 llast = llast->next;
 480
 481         }
 482
 483         if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
 484                 log_warning(_("can't get xhdr\n"));
 485                 return NULL;
 486         }
 487
 488         llast = newlist;
 489
 490         for (;;) {
 491                 gchar * value;
 492
 493                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 494                         log_warning(_("error occurred while getting xover.\n"));
 495                         return newlist;
 496                 }
 497
 498                 if (buf[0] == '.' && buf[1] == '\r') break;
 499
 500                 msginfo = (MsgInfo *) llast->data;
 501
 502                 value = news_parse_xhdr(buf, msginfo);
 503
 504                 if (value)
 505                         msginfo->cc = value;
 506
 507                 llast = llast->next;
 508         }
 509
 510         if (rfirst) *rfirst = first;
 511         if (rlast)  *rlast  = last;
 512         return newlist;
 513 }
 514
 515 #define PARSE_ONE_PARAM(p, srcp) \
 516 { \
 517         p = strchr(srcp, '\t'); \
 518         if (!p) return NULL; \
 519         else \
 520                 *p++ = '\0'; \
 521 }
 522
 523 static MsgInfo *news_parse_xover(const gchar *xover_str)
 524 {
 525         MsgInfo *msginfo;
 526         gchar buf[NNTPBUFSIZE];
 527         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 528         gchar *p;
 529         gint num, size_int, line_int;
 530         gchar *xover_buf;
 531
 532         Xalloca(xover_buf, strlen(xover_str) + 1, return NULL);
 533         strcpy(xover_buf, xover_str);
 534
 535         PARSE_ONE_PARAM(subject, xover_buf);
 536         PARSE_ONE_PARAM(sender, subject);
 537         PARSE_ONE_PARAM(date, sender);
 538         PARSE_ONE_PARAM(msgid, date);
 539         PARSE_ONE_PARAM(ref, msgid);
 540         PARSE_ONE_PARAM(size, ref);
 541         PARSE_ONE_PARAM(line, size);
 542
 543         tmp = strchr(line, '\t');
 544         if (!tmp) tmp = strchr(line, '\r');
 545         if (!tmp) tmp = strchr(line, '\n');
 546         if (tmp) *tmp = '\0';
 547
 548         num = atoi(xover_str);
 549         size_int = atoi(size);
 550         line_int = atoi(line);
 551
 552         /* set MsgInfo */
 553         msginfo = g_new0(MsgInfo, 1);
 554         msginfo->msgnum = num;
 555         msginfo->size = size_int;
 556
 557         msginfo->date = g_strdup(date);
 558         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 559
 560         conv_unmime_header(buf, sizeof(buf), sender, NULL);
 561         msginfo->from = g_strdup(buf);
 562         msginfo->fromname = procheader_get_fromname(buf);
 563
 564         conv_unmime_header(buf, sizeof(buf), subject, NULL);
 565         msginfo->subject = g_strdup(buf);
 566
 567         extract_parenthesis(msgid, '<', '>');
 568         remove_space(msgid);
 569         if (*msgid != '\0')
 570                 msginfo->msgid = g_strdup(msgid);
 571
 572         msginfo->references = g_strdup(ref);
 573         eliminate_parenthesis(ref, '(', ')');
 574         if ((p = strrchr(ref, '<')) != NULL) {
 575                 extract_parenthesis(p, '<', '>');
 576                 remove_space(p);
 577                 if (*p != '\0')
 578                         msginfo->inreplyto = g_strdup(p);
 579         }
 580
 581         return msginfo;
 582 }
 583
 584 static gchar * news_parse_xhdr(const gchar *xover_str, MsgInfo * info)
 585 {
 586         gchar buf[NNTPBUFSIZE];
 587         gchar *p;
 588         gint num;
 589         gchar * tmp;
 590
 591         p = strchr(xover_str, ' ');
 592         if (!p)
 593                 return NULL;
 594         else
 595                 p++;
 596
 597         num = atoi(xover_str);
 598
 599         if (info->msgnum != num)
 600                 return NULL;
 601
 602         tmp = strchr(p, '\r');
 603         if (!tmp) tmp = strchr(p, '\n');
 604
 605         if (tmp)
 606                 return g_strndup(p, tmp - p);
 607         else
 608                 return g_strdup(p);
 609 }
 610
 611 static GSList *news_delete_old_article(GSList *alist, gint first)
 612 {
 613         GSList *cur, *next;
 614         MsgInfo *msginfo;
 615         gchar *cache_file;
 616
 617         if (first < 2) return alist;
 618
 619         for (cur = alist; cur != NULL; ) {
 620                 next = cur->next;
 621
 622                 msginfo = (MsgInfo *)cur->data;
 623                 if (msginfo && msginfo->msgnum < first) {
 624                         debug_print(_("deleting article %d...\n"),
 625                                     msginfo->msgnum);
 626
 627                         cache_file = procmsg_get_message_file_path(msginfo);
 628                         if (is_file_exist(cache_file)) unlink(cache_file);
 629                         g_free(cache_file);
 630
 631                         procmsg_msginfo_free(msginfo);
 632                         alist = g_slist_remove(alist, msginfo);
 633                 }
 634
 635                 cur = next;
 636         }
 637
 638         return alist;
 639 }
 640
 641 static void news_delete_all_article(FolderItem *item)
 642 {
 643         DIR *dp;
 644         struct dirent *d;
 645         gchar *dir;
 646         gchar *file;
 647
 648         dir = folder_item_get_path(item);
 649         if (!is_dir_exist(dir))
 650                 make_dir_hier(dir);
 651
 652         if ((dp = opendir(dir)) == NULL) {
 653                 FILE_OP_ERROR(dir, "opendir");
 654                 g_free(dir);
 655                 return;
 656         }
 657
 658         debug_print(_("\tDeleting all cached articles... "));
 659
 660         while ((d = readdir(dp)) != NULL) {
 661                 if (to_number(d->d_name) < 0) continue;
 662
 663                 file = g_strconcat(dir, G_DIR_SEPARATOR_S, d->d_name, NULL);
 664
 665                 if (is_file_exist(file)) {
 666                         if (unlink(file) < 0)
 667                                 FILE_OP_ERROR(file, "unlink");
 668                 }
 669
 670                 g_free(file);
 671         }
 672
 673         closedir(dp);
 674         g_free(dir);
 675
 676         debug_print(_("done.\n"));
 677 }
 678
 679 /*
 680   news_get_group_list returns a strings list.
 681   These strings are the names of the newsgroups of a server.
 682   item is the FolderItem of the news server.
 683   The names of the newsgroups are cached into a file so that
 684   when the function is called again, there is no need to make
 685   a request to the server.
 686  */
 687
 688 GSList * news_get_group_list(FolderItem *item)
 689 {
 690         gchar *path, *filename;
 691         gint ok;
 692         NNTPSession *session;
 693         GSList * group_list = NULL;
 694         FILE * f;
 695         gchar buf[NNTPBUFSIZE];
 696         int len;
 697
 698         if (item == NULL)
 699           return NULL;
 700
 701         path = folder_item_get_path(item);
 702
 703         if (!is_dir_exist(path))
 704                 make_dir_hier(path);
 705
 706         filename = g_strconcat(path, G_DIR_SEPARATOR_S, GROUPLIST_FILE, NULL);
 707         g_free(path);
 708
 709         session = news_session_get(item->folder);
 710
 711         if (session == NULL)
 712           return NULL;
 713
 714         if (is_file_exist(filename)) {
 715                 debug_print(_("group list has been already cached.\n"));
 716         }
 717         else {
 718             ok = nntp_list(session->nntp_sock);
 719             if (ok != NN_SUCCESS)
 720               return NULL;
 721
 722             if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 723               log_warning(_("can't retrieve group list\n"));
 724               return NULL;
 725             }
 726         }
 727
 728         f = fopen(filename, "r");
 729         while (fgets(buf, NNTPBUFSIZE, f)) {
 730             char * s;
 731
 732             len = 0;
 733             while ((buf[len] != 0) && (buf[len] != ' '))
 734               len++;
 735             buf[len] = 0;
 736             s = g_strdup(buf);
 737
 738             group_list = g_slist_append(group_list, s);
 739         }
 740         fclose(f);
 741         g_free(filename);
 742
 743         group_list = g_slist_sort(group_list, (GCompareFunc) g_strcasecmp);
 744
 745         return group_list;
 746 }
 747
 748 /*
 749   remove the cache file of the names of the newsgroups.
 750  */
 751
 752 void news_reset_group_list(FolderItem *item)
 753 {
 754         gchar *path, *filename;
 755
 756         debug_print(_("\tDeleting cached group list... "));
 757         path = folder_item_get_path(item);
 758         if (!is_dir_exist(path))
 759                 make_dir_hier(path);
 760
 761         filename = g_strconcat(path, G_DIR_SEPARATOR_S, GROUPLIST_FILE, NULL);
 762         g_free(path);
 763         if (remove(filename) != 0)
 764           log_warning(_("can't delete cached group list %s\n"), filename);
 765         g_free(filename);
 766 }