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