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                 statusbar_pop_all();
 176                 return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 177         }
 178
 179         session = NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 180
 181         if (nntp_mode(session->nntp_sock, FALSE) != NN_SUCCESS) {
 182                 log_warning(_("NNTP connection to %s:%d has been"
 183                               " disconnected. Reconnecting...\n"),
 184                             folder->account->nntp_server,
 185                             folder->account->set_nntpport ?
 186                             folder->account->nntpport : NNTP_PORT);
 187                 session_destroy(REMOTE_FOLDER(folder)->session);
 188                 REMOTE_FOLDER(folder)->session =
 189                         news_session_new_for_folder(folder);
 190         }
 191
 192         statusbar_pop_all();
 193         return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 194 }
 195
 196 GSList *news_get_article_list(Folder *folder, FolderItem *item,
 197                               gboolean use_cache)
 198 {
 199         GSList *alist;
 200         NNTPSession *session;
 201
 202         g_return_val_if_fail(folder != NULL, NULL);
 203         g_return_val_if_fail(item != NULL, NULL);
 204         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 205
 206         session = news_session_get(folder);
 207
 208         if (!session) {
 209                 alist = procmsg_read_cache(item, FALSE);
 210                 item->last_num = procmsg_get_last_num_in_cache(alist);
 211         } else if (use_cache) {
 212                 GSList *newlist;
 213                 gint cache_last;
 214                 gint first, last;
 215
 216                 alist = procmsg_read_cache(item, FALSE);
 217
 218                 cache_last = procmsg_get_last_num_in_cache(alist);
 219                 newlist = news_get_uncached_articles
 220                         (session, item, cache_last, &first, &last);
 221                 alist = news_delete_old_articles(alist, item, first);
 222
 223                 alist = g_slist_concat(alist, newlist);
 224                 item->last_num = last;
 225         } else {
 226                 gint last;
 227
 228                 alist = news_get_uncached_articles
 229                         (session, item, 0, NULL, &last);
 230                 news_delete_all_articles(item);
 231                 item->last_num = last;
 232         }
 233
 234         procmsg_set_flags(alist, item);
 235
 236         statusbar_pop_all();
 237
 238         return alist;
 239 }
 240
 241 gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 242 {
 243         gchar *path, *filename;
 244         NNTPSession *session;
 245         gint ok;
 246
 247         g_return_val_if_fail(folder != NULL, NULL);
 248         g_return_val_if_fail(item != NULL, NULL);
 249
 250         path = folder_item_get_path(item);
 251         if (!is_dir_exist(path))
 252                 make_dir_hier(path);
 253         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 254         g_free(path);
 255
 256         if (is_file_exist(filename)) {
 257                 debug_print(_("article %d has been already cached.\n"), num);
 258                 return filename;
 259         }
 260
 261         session = news_session_get(folder);
 262         if (!session) {
 263                 g_free(filename);
 264                 return NULL;
 265         }
 266
 267         ok = news_select_group(session, item->path);
 268         statusbar_pop_all();
 269         if (ok != NN_SUCCESS) {
 270                 g_warning(_("can't select group %s\n"), item->path);
 271                 g_free(filename);
 272                 return NULL;
 273         }
 274
 275         debug_print(_("getting article %d...\n"), num);
 276         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 277                               num, filename);
 278         statusbar_pop_all();
 279         if (ok < 0) {
 280                 g_warning(_("can't read article %d\n"), num);
 281                 g_free(filename);
 282                 return NULL;
 283         }
 284
 285         return filename;
 286 }
 287
 288 void news_scan_group(Folder *folder, FolderItem *item)
 289 {
 290 }
 291
 292 GSList *news_get_group_list(Folder *folder)
 293 {
 294         gchar *path, *filename;
 295         FILE *fp;
 296         GSList *list = NULL;
 297         GSList *last = NULL;
 298         gchar buf[NNTPBUFSIZE];
 299
 300         g_return_val_if_fail(folder != NULL, NULL);
 301         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 302
 303         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 304         if (!is_dir_exist(path))
 305                 make_dir_hier(path);
 306         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 307         g_free(path);
 308
 309         if ((fp = fopen(filename, "r")) == NULL) {
 310                 NNTPSession *session;
 311
 312                 session = news_session_get(folder);
 313                 if (!session) {
 314                         g_free(filename);
 315                         return NULL;
 316                 }
 317
 318                 if (nntp_list(session->nntp_sock) != NN_SUCCESS) {
 319                         g_free(filename);
 320                         statusbar_pop_all();
 321                         return NULL;
 322                 }
 323                 statusbar_pop_all();
 324                 if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 325                         log_warning(_("can't retrieve newsgroup list\n"));
 326                         g_free(filename);
 327                         return NULL;
 328                 }
 329
 330                 if ((fp = fopen(filename, "r")) == NULL) {
 331                         FILE_OP_ERROR(filename, "fopen");
 332                         g_free(filename);
 333                         return NULL;
 334                 }
 335         }
 336
 337         while (fgets(buf, sizeof(buf), fp) != NULL) {
 338                 gchar *p = buf;
 339                 while (*p != '\0' && *p != ' ') p++;
 340                 *p = '\0';
 341                 if (!last)
 342                         last = list = g_slist_append(NULL, g_strdup(buf));
 343                 else {
 344                         last = g_slist_append(last, g_strdup(buf));
 345                         last = last->next;
 346                 }
 347         }
 348
 349         fclose(fp);
 350         g_free(filename);
 351
 352         list = g_slist_sort(list, (GCompareFunc)g_strcasecmp);
 353
 354         statusbar_pop_all();
 355
 356         return list;
 357 }
 358
 359 void news_remove_group_list(Folder *folder)
 360 {
 361         gchar *path, *filename;
 362
 363         g_return_if_fail(folder != NULL);
 364         g_return_if_fail(folder->type == F_NEWS);
 365
 366         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 367         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 368         g_free(path);
 369
 370         if (is_file_exist(filename)) {
 371                 if (remove(filename) < 0)
 372                         FILE_OP_ERROR(filename, "remove");
 373         }
 374         g_free(filename);
 375 }
 376
 377 gint news_post(Folder *folder, const gchar *file)
 378 {
 379         NNTPSession *session;
 380         FILE *fp;
 381         gint ok;
 382
 383         g_return_val_if_fail(folder != NULL, -1);
 384         g_return_val_if_fail(folder->type == F_NEWS, -1);
 385         g_return_val_if_fail(file != NULL, -1);
 386
 387         session = news_session_get(folder);
 388         if (!session) return -1;
 389
 390         if ((fp = fopen(file, "r")) == NULL) {
 391                 FILE_OP_ERROR(file, "fopen");
 392                 return -1;
 393         }
 394
 395         ok = nntp_post(session->nntp_sock, fp);
 396         if (ok != NN_SUCCESS) {
 397                 log_warning(_("can't post article.\n"));
 398                 return -1;
 399         }
 400
 401         fclose(fp);
 402
 403         statusbar_pop_all();
 404
 405         return 0;
 406 }
 407
 408 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 409                                  gint num, gchar *filename)
 410 {
 411         gchar *msgid;
 412
 413         if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
 414             != NN_SUCCESS)
 415                 return -1;
 416
 417         debug_print("Message-Id = %s, num = %d\n", msgid, num);
 418         g_free(msgid);
 419
 420         if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
 421                 log_warning(_("can't retrieve article %d\n"), num);
 422                 return -1;
 423         }
 424
 425         return 0;
 426 }
 427
 428 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 429 {
 430         return news_get_article_cmd(session, "ARTICLE", num, filename);
 431 }
 432
 433 static gint news_get_header(NNTPSession *session, gint num, gchar *filename)
 434 {
 435         return news_get_article_cmd(session, "HEAD", num, filename);
 436 }
 437
 438 /**
 439  * news_select_group:
 440  * @session: Active NNTP session.
 441  * @group: Newsgroup name.
 442  *
 443  * Select newsgroup @group with the GROUP command if it is not already
 444  * selected in @session.
 445  *
 446  * Return value: NNTP result code.
 447  **/
 448 static gint news_select_group(NNTPSession *session, const gchar *group)
 449 {
 450         gint ok;
 451         gint num, first, last;
 452
 453         if (session->group && g_strcasecmp(session->group, group) == 0)
 454                 return NN_SUCCESS;
 455
 456         g_free(session->group);
 457         session->group = NULL;
 458
 459         ok = nntp_group(session->nntp_sock, group, &num, &first, &last);
 460         if (ok == NN_SUCCESS)
 461                 session->group = g_strdup(group);
 462
 463         return ok;
 464 }
 465
 466 static GSList *news_get_uncached_articles(NNTPSession *session,
 467                                           FolderItem *item, gint cache_last,
 468                                           gint *rfirst, gint *rlast)
 469 {
 470         gint ok;
 471         gint num = 0, first = 0, last = 0, begin = 0, end = 0;
 472         gchar buf[NNTPBUFSIZE];
 473         GSList *newlist = NULL;
 474         GSList *llast = NULL;
 475         MsgInfo *msginfo;
 476
 477         if (rfirst) *rfirst = 0;
 478         if (rlast)  *rlast  = 0;
 479
 480         g_return_val_if_fail(session != NULL, NULL);
 481         g_return_val_if_fail(item != NULL, NULL);
 482         g_return_val_if_fail(item->folder != NULL, NULL);
 483         g_return_val_if_fail(item->folder->type == F_NEWS, NULL);
 484
 485         g_free(session->group);
 486         session->group = NULL;
 487
 488         ok = nntp_group(session->nntp_sock, item->path,
 489                         &num, &first, &last);
 490         if (ok != NN_SUCCESS) {
 491                 log_warning(_("can't set group: %s\n"), item->path);
 492                 return NULL;
 493         }
 494         session->group = g_strdup(item->path);
 495
 496         /* calculate getting overview range */
 497         if (first > last) {
 498                 log_warning(_("invalid article range: %d - %d\n"),
 499                             first, last);
 500                 return NULL;
 501         }
 502         if (cache_last < first)
 503                 begin = first;
 504         else if (last < cache_last)
 505                 begin = first;
 506         else if (last == cache_last) {
 507                 debug_print(_("no new articles.\n"));
 508                 return NULL;
 509         } else
 510                 begin = cache_last + 1;
 511         end = last;
 512
 513         if (rfirst) *rfirst = first;
 514         if (rlast)  *rlast  = last;
 515
 516         if (prefs_common.max_articles > 0 &&
 517             end - begin + 1 > prefs_common.max_articles)
 518                 begin = end - prefs_common.max_articles + 1;
 519
 520         log_message(_("getting xover %d - %d in %s...\n"),
 521                     begin, end, item->path);
 522         if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
 523                 log_warning(_("can't get xover\n"));
 524                 return NULL;
 525         }
 526
 527         for (;;) {
 528                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 529                         log_warning(_("error occurred while getting xover.\n"));
 530                         return newlist;
 531                 }
 532
 533                 if (buf[0] == '.' && buf[1] == '\r') break;
 534
 535                 msginfo = news_parse_xover(buf);
 536                 if (!msginfo) {
 537                         log_warning(_("invalid xover line: %s\n"), buf);
 538                         continue;
 539                 }
 540
 541                 msginfo->folder = item;
 542                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
 543                 msginfo->flags.tmp_flags = MSG_NEWS;
 544                 msginfo->newsgroups = g_strdup(item->path);
 545
 546                 if (!newlist)
 547                         llast = newlist = g_slist_append(newlist, msginfo);
 548                 else {
 549                         llast = g_slist_append(llast, msginfo);
 550                         llast = llast->next;
 551                 }
 552         }
 553
 554         if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
 555                 log_warning(_("can't get xhdr\n"));
 556                 return newlist;
 557         }
 558
 559         llast = newlist;
 560
 561         for (;;) {
 562                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 563                         log_warning(_("error occurred while getting xhdr.\n"));
 564                         return newlist;
 565                 }
 566
 567                 if (buf[0] == '.' && buf[1] == '\r') break;
 568                 if (!llast) {
 569                         g_warning("llast == NULL\n");
 570                         continue;
 571                 }
 572
 573                 msginfo = (MsgInfo *)llast->data;
 574                 msginfo->to = news_parse_xhdr(buf, msginfo);
 575
 576                 llast = llast->next;
 577         }
 578
 579         if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
 580                 log_warning(_("can't get xhdr\n"));
 581                 return newlist;
 582         }
 583
 584         llast = newlist;
 585
 586         for (;;) {
 587                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 588                         log_warning(_("error occurred while getting xhdr.\n"));
 589                         return newlist;
 590                 }
 591
 592                 if (buf[0] == '.' && buf[1] == '\r') break;
 593                 if (!llast) {
 594                         g_warning("llast == NULL\n");
 595                         continue;
 596                 }
 597
 598                 msginfo = (MsgInfo *)llast->data;
 599                 msginfo->cc = news_parse_xhdr(buf, msginfo);
 600
 601                 llast = llast->next;
 602         }
 603
 604         return newlist;
 605 }
 606
 607 #define PARSE_ONE_PARAM(p, srcp) \
 608 { \
 609         p = strchr(srcp, '\t'); \
 610         if (!p) return NULL; \
 611         else \
 612                 *p++ = '\0'; \
 613 }
 614
 615 static MsgInfo *news_parse_xover(const gchar *xover_str)
 616 {
 617         MsgInfo *msginfo;
 618         gchar buf[NNTPBUFSIZE];
 619         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 620         gchar *p;
 621         gint num, size_int, line_int;
 622         gchar *xover_buf;
 623
 624         Xalloca(xover_buf, strlen(xover_str) + 1, return NULL);
 625         strcpy(xover_buf, xover_str);
 626
 627         PARSE_ONE_PARAM(subject, xover_buf);
 628         PARSE_ONE_PARAM(sender, subject);
 629         PARSE_ONE_PARAM(date, sender);
 630         PARSE_ONE_PARAM(msgid, date);
 631         PARSE_ONE_PARAM(ref, msgid);
 632         PARSE_ONE_PARAM(size, ref);
 633         PARSE_ONE_PARAM(line, size);
 634
 635         tmp = strchr(line, '\t');
 636         if (!tmp) tmp = strchr(line, '\r');
 637         if (!tmp) tmp = strchr(line, '\n');
 638         if (tmp) *tmp = '\0';
 639
 640         num = atoi(xover_str);
 641         size_int = atoi(size);
 642         line_int = atoi(line);
 643
 644         /* set MsgInfo */
 645         msginfo = g_new0(MsgInfo, 1);
 646         msginfo->msgnum = num;
 647         msginfo->size = size_int;
 648
 649         msginfo->date = g_strdup(date);
 650         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 651
 652         conv_unmime_header(buf, sizeof(buf), sender, NULL);
 653         msginfo->from = g_strdup(buf);
 654         msginfo->fromname = procheader_get_fromname(buf);
 655
 656         conv_unmime_header(buf, sizeof(buf), subject, NULL);
 657         msginfo->subject = g_strdup(buf);
 658
 659         extract_parenthesis(msgid, '<', '>');
 660         remove_space(msgid);
 661         if (*msgid != '\0')
 662                 msginfo->msgid = g_strdup(msgid);
 663
 664         msginfo->references = g_strdup(ref);
 665         eliminate_parenthesis(ref, '(', ')');
 666         if ((p = strrchr(ref, '<')) != NULL) {
 667                 extract_parenthesis(p, '<', '>');
 668                 remove_space(p);
 669                 if (*p != '\0')
 670                         msginfo->inreplyto = g_strdup(p);
 671         }
 672
 673         return msginfo;
 674 }
 675
 676 static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
 677 {
 678         gchar *p;
 679         gchar *tmp;
 680         gint num;
 681
 682         p = strchr(xhdr_str, ' ');
 683         if (!p)
 684                 return NULL;
 685         else
 686                 p++;
 687
 688         num = atoi(xhdr_str);
 689         if (msginfo->msgnum != num) return NULL;
 690
 691         tmp = strchr(p, '\r');
 692         if (!tmp) tmp = strchr(p, '\n');
 693
 694         if (tmp)
 695                 return g_strndup(p, tmp - p);
 696         else
 697                 return g_strdup(p);
 698 }
 699
 700 static GSList *news_delete_old_articles(GSList *alist, FolderItem *item,
 701                                         gint first)
 702 {
 703         GSList *cur, *next;
 704         MsgInfo *msginfo;
 705         gchar *dir;
 706
 707         g_return_val_if_fail(item != NULL, alist);
 708         g_return_val_if_fail(item->folder != NULL, alist);
 709         g_return_val_if_fail(item->folder->type == F_NEWS, alist);
 710
 711         if (first < 2) return alist;
 712
 713         debug_print(_("Deleting cached articles 1 - %d ... "), first - 1);
 714
 715         dir = folder_item_get_path(item);
 716         remove_numbered_files(dir, 1, first - 1);
 717         g_free(dir);
 718
 719         for (cur = alist; cur != NULL; ) {
 720                 next = cur->next;
 721
 722                 msginfo = (MsgInfo *)cur->data;
 723                 if (msginfo && msginfo->msgnum < first) {
 724                         procmsg_msginfo_free(msginfo);
 725                         alist = g_slist_remove(alist, msginfo);
 726                 }
 727
 728                 cur = next;
 729         }
 730
 731         return alist;
 732 }
 733
 734 static void news_delete_all_articles(FolderItem *item)
 735 {
 736         gchar *dir;
 737
 738         g_return_if_fail(item != NULL);
 739         g_return_if_fail(item->folder != NULL);
 740         g_return_if_fail(item->folder->type == F_NEWS);
 741
 742         debug_print(_("\tDeleting all cached articles... "));
 743
 744         dir = folder_item_get_path(item);
 745         remove_all_numbered_files(dir);
 746         g_free(dir);
 747
 748         debug_print(_("done.\n"));
 749 }