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 #include <time.h>
  33
  34 #include "intl.h"
  35 #include "news.h"
  36 #include "nntp.h"
  37 #include "socket.h"
  38 #include "recv.h"
  39 #include "procmsg.h"
  40 #include "procheader.h"
  41 #include "folder.h"
  42 #include "session.h"
  43 #include "statusbar.h"
  44 #include "codeconv.h"
  45 #include "utils.h"
  46 #include "prefs_common.h"
  47 #include "prefs_account.h"
  48 #include "inputdialog.h"
  49 #include "alertpanel.h"
  50
  51 #define NNTP_PORT       119
  52
  53 static Session *news_session_new         (const gchar   *server,
  54                                           gushort        port,
  55                                           const gchar   *userid,
  56                                           const gchar   *passwd);
  57
  58 static gint news_get_article_cmd         (NNTPSession   *session,
  59                                           const gchar   *cmd,
  60                                           gint           num,
  61                                           gchar         *filename);
  62 static gint news_get_article             (NNTPSession   *session,
  63                                           gint           num,
  64                                           gchar         *filename);
  65 static gint news_get_header              (NNTPSession   *session,
  66                                           gint           num,
  67                                           gchar         *filename);
  68
  69 static gint news_select_group            (NNTPSession   *session,
  70                                           const gchar   *group);
  71 static GSList *news_get_uncached_articles(NNTPSession   *session,
  72                                           FolderItem    *item,
  73                                           gint           cache_last,
  74                                           gint          *rfirst,
  75                                           gint          *rlast);
  76 static MsgInfo *news_parse_xover         (const gchar   *xover_str);
  77 static gchar *news_parse_xhdr            (const gchar   *xhdr_str,
  78                                           MsgInfo       *msginfo);
  79 static GSList *news_delete_old_articles  (GSList        *alist,
  80                                           FolderItem    *item,
  81                                           gint           first);
  82 static void news_delete_all_articles     (FolderItem    *item);
  83
  84 static void news_group_list_free(GSList * list);
  85
  86
  87 static Session *news_session_new(const gchar *server, gushort port,
  88                                  const gchar *userid, const gchar *passwd)
  89 {
  90         gchar buf[NNTPBUFSIZE];
  91         NNTPSession *session;
  92         NNTPSockInfo *nntp_sock;
  93
  94         g_return_val_if_fail(server != NULL, NULL);
  95
  96         log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
  97
  98         if (userid && passwd)
  99                 nntp_sock = nntp_open_auth(server, port, buf, userid, passwd);
 100         else
 101                 nntp_sock = nntp_open(server, port, buf);
 102         if (nntp_sock == NULL)
 103                 return NULL;
 104
 105         session = g_new(NNTPSession, 1);
 106         SESSION(session)->type             = SESSION_NEWS;
 107         SESSION(session)->server           = g_strdup(server);
 108         session->nntp_sock                 = nntp_sock;
 109         SESSION(session)->sock             = nntp_sock->sock;
 110         SESSION(session)->connected        = TRUE;
 111         SESSION(session)->phase            = SESSION_READY;
 112         SESSION(session)->last_access_time = time(NULL);
 113         SESSION(session)->data             = NULL;
 114         session->group = NULL;
 115         session->group_list = NULL;
 116
 117         return SESSION(session);
 118 }
 119
 120 void news_session_destroy(NNTPSession *session)
 121 {
 122         nntp_close(session->nntp_sock);
 123         session->nntp_sock = NULL;
 124         SESSION(session)->sock = NULL;
 125
 126         news_group_list_free(session->group_list);
 127         session->group_list = NULL;
 128
 129         g_free(session->group);
 130 }
 131
 132 static gchar *news_query_password(const gchar *server, const gchar *user)
 133 {
 134         gchar *message;
 135         gchar *pass;
 136
 137         message = g_strdup_printf(_("Input password for %s on %s:"),
 138                                   user, server);
 139         pass = input_dialog_with_invisible(_("Input password"), message, NULL);
 140         g_free(message);
 141
 142         return pass;
 143 }
 144
 145 static Session *news_session_new_for_folder(Folder *folder)
 146 {
 147         Session *session;
 148         PrefsAccount *ac;
 149         const gchar *userid = NULL;
 150         gchar *passwd = NULL;
 151
 152         g_return_val_if_fail(folder != NULL, NULL);
 153         g_return_val_if_fail(folder->account != NULL, NULL);
 154
 155         ac = folder->account;
 156         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 157                 userid = ac->userid;
 158                 if (ac->passwd && ac->passwd[0])
 159                         passwd = g_strdup(ac->passwd);
 160                 else
 161                         passwd = news_query_password(ac->nntp_server, userid);
 162         }
 163
 164         session = news_session_new(ac->nntp_server,
 165                                    ac->set_nntpport ? ac->nntpport : NNTP_PORT,
 166                                    userid, passwd);
 167         g_free(passwd);
 168
 169         return session;
 170 }
 171
 172 NNTPSession *news_session_get(Folder *folder)
 173 {
 174         NNTPSession *session;
 175
 176         g_return_val_if_fail(folder != NULL, NULL);
 177         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 178         g_return_val_if_fail(folder->account != NULL, NULL);
 179
 180         if (!REMOTE_FOLDER(folder)->session) {
 181                 REMOTE_FOLDER(folder)->session =
 182                         news_session_new_for_folder(folder);
 183                 statusbar_pop_all();
 184                 return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 185         }
 186
 187         session = NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 188
 189         if (time(NULL) - SESSION(session)->last_access_time < SESSION_TIMEOUT) {
 190                 SESSION(session)->last_access_time = time(NULL);
 191                 statusbar_pop_all();
 192                 return session;
 193         }
 194
 195         if (nntp_mode(session->nntp_sock, FALSE) != NN_SUCCESS) {
 196                 log_warning(_("NNTP connection to %s:%d has been"
 197                               " disconnected. Reconnecting...\n"),
 198                             folder->account->nntp_server,
 199                             folder->account->set_nntpport ?
 200                             folder->account->nntpport : NNTP_PORT);
 201                 session_destroy(REMOTE_FOLDER(folder)->session);
 202                 REMOTE_FOLDER(folder)->session =
 203                         news_session_new_for_folder(folder);
 204         }
 205
 206         statusbar_pop_all();
 207         return NNTP_SESSION(REMOTE_FOLDER(folder)->session);
 208 }
 209
 210 GSList *news_get_article_list(Folder *folder, FolderItem *item,
 211                               gboolean use_cache)
 212 {
 213         GSList *alist;
 214         NNTPSession *session;
 215
 216         g_return_val_if_fail(folder != NULL, NULL);
 217         g_return_val_if_fail(item != NULL, NULL);
 218         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 219
 220         session = news_session_get(folder);
 221
 222         if (!session) {
 223                 alist = procmsg_read_cache(item, FALSE);
 224                 item->last_num = procmsg_get_last_num_in_cache(alist);
 225         } else if (use_cache) {
 226                 GSList *newlist;
 227                 gint cache_last;
 228                 gint first, last;
 229
 230                 alist = procmsg_read_cache(item, FALSE);
 231
 232                 cache_last = procmsg_get_last_num_in_cache(alist);
 233                 newlist = news_get_uncached_articles
 234                         (session, item, cache_last, &first, &last);
 235                 alist = news_delete_old_articles(alist, item, first);
 236
 237                 alist = g_slist_concat(alist, newlist);
 238                 item->last_num = last;
 239         } else {
 240                 gint last;
 241
 242                 alist = news_get_uncached_articles
 243                         (session, item, 0, NULL, &last);
 244                 news_delete_all_articles(item);
 245                 item->last_num = last;
 246         }
 247
 248         procmsg_set_flags(alist, item);
 249
 250         statusbar_pop_all();
 251
 252         return alist;
 253 }
 254
 255 gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 256 {
 257         gchar *path, *filename;
 258         NNTPSession *session;
 259         gint ok;
 260
 261         g_return_val_if_fail(folder != NULL, NULL);
 262         g_return_val_if_fail(item != NULL, NULL);
 263
 264         path = folder_item_get_path(item);
 265         if (!is_dir_exist(path))
 266                 make_dir_hier(path);
 267         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 268         g_free(path);
 269
 270         if (is_file_exist(filename)) {
 271                 debug_print(_("article %d has been already cached.\n"), num);
 272                 return filename;
 273         }
 274
 275         session = news_session_get(folder);
 276         if (!session) {
 277                 g_free(filename);
 278                 return NULL;
 279         }
 280
 281         ok = news_select_group(session, item->path);
 282         statusbar_pop_all();
 283         if (ok != NN_SUCCESS) {
 284                 g_warning(_("can't select group %s\n"), item->path);
 285                 g_free(filename);
 286                 return NULL;
 287         }
 288
 289         debug_print(_("getting article %d...\n"), num);
 290         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 291                               num, filename);
 292         statusbar_pop_all();
 293         if (ok < 0) {
 294                 g_warning(_("can't read article %d\n"), num);
 295                 g_free(filename);
 296                 return NULL;
 297         }
 298
 299         return filename;
 300 }
 301
 302 void news_scan_group(Folder *folder, FolderItem *item)
 303 {
 304 }
 305
 306 static struct NNTPGroupInfo * group_info_new(gchar * name,
 307                                              gint first, gint last,
 308                                              gchar type)
 309 {
 310         struct NNTPGroupInfo * info;
 311
 312         info = g_new(struct NNTPGroupInfo, 1);
 313         if (info == NULL)
 314                 return NULL;
 315         info->name = g_strdup(name);
 316         info->first = first;
 317         info->last = last;
 318         info->type = type;
 319
 320         return info;
 321 }
 322
 323 static void group_info_free(struct NNTPGroupInfo * info)
 324 {
 325   g_free(info->name);
 326   g_free(info);
 327 }
 328
 329 static void news_group_list_free(GSList * list)
 330 {
 331   g_slist_foreach(list, (GFunc) group_info_free, NULL);
 332   g_slist_free(list);
 333 }
 334
 335 gint news_group_info_compare(struct NNTPGroupInfo * info1,
 336                              struct NNTPGroupInfo * info2)
 337 {
 338   return g_strcasecmp(info1->name, info2->name);
 339 }
 340
 341 GSList *news_get_group_list(Folder *folder)
 342 {
 343         gchar *path, *filename;
 344         FILE *fp;
 345         GSList *list = NULL;
 346         GSList *last = NULL;
 347         gchar buf[NNTPBUFSIZE];
 348         NNTPSession *session;
 349
 350         g_return_val_if_fail(folder != NULL, NULL);
 351         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 352
 353         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 354         if (!is_dir_exist(path))
 355                 make_dir_hier(path);
 356         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 357         g_free(path);
 358
 359         session = news_session_get(folder);
 360         if (!session) {
 361                 g_free(filename);
 362                 return NULL;
 363         }
 364
 365         if (session->group_list) {
 366                 g_free(filename);
 367                 return session->group_list;
 368         }
 369
 370         if ((fp = fopen(filename, "r")) == NULL) {
 371                 if (nntp_list(session->nntp_sock) != NN_SUCCESS) {
 372                         g_free(filename);
 373                         statusbar_pop_all();
 374                         return NULL;
 375                 }
 376                 statusbar_pop_all();
 377                 if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 378                         log_warning(_("can't retrieve newsgroup list\n"));
 379                         g_free(filename);
 380                         return NULL;
 381                 }
 382
 383                 if ((fp = fopen(filename, "r")) == NULL) {
 384                         FILE_OP_ERROR(filename, "fopen");
 385                         g_free(filename);
 386                         return NULL;
 387                 }
 388         }
 389
 390         while (fgets(buf, sizeof(buf), fp) != NULL) {
 391                 gchar * p;
 392                 gchar * cur;
 393                 gchar * name;
 394                 gint last_article;
 395                 gint first_article;
 396                 gchar type;
 397                 struct NNTPGroupInfo * info;
 398
 399                 cur = buf;
 400                 p = strchr(cur, ' ');
 401                 if (p == NULL)
 402                         continue;
 403                 * p = 0;
 404
 405                 name = cur;
 406
 407                 cur = p + 1;
 408                 p = strchr(cur, ' ');
 409                 if (p == NULL)
 410                         continue;
 411                 * p = 0;
 412                 last_article = atoi(cur);
 413
 414                 cur = p + 1;
 415                 p = strchr(cur, ' ');
 416                 if (p == NULL)
 417                         continue;
 418                 * p = 0;
 419                 first_article = atoi(cur);
 420
 421                 cur = p + 1;
 422                 type = * cur;
 423
 424                 info = group_info_new(name, first_article,
 425                                       last_article, type);
 426                 if (info == NULL)
 427                         continue;
 428
 429                 if (!last)
 430                         last = list = g_slist_append(NULL, info);
 431                 else {
 432                         last = g_slist_append(last, info);
 433                         last = last->next;
 434                 }
 435         }
 436
 437         fclose(fp);
 438         g_free(filename);
 439
 440         list = g_slist_sort(list, (GCompareFunc) news_group_info_compare);
 441
 442         session->group_list = list;
 443
 444         statusbar_pop_all();
 445
 446         return list;
 447 }
 448
 449 void news_cancel_group_list_cache(Folder *folder)
 450 {
 451         gchar *path, *filename;
 452         NNTPSession *session;
 453
 454         g_return_if_fail(folder != NULL);
 455         g_return_if_fail(folder->type == F_NEWS);
 456
 457         session = news_session_get(folder);
 458         if (!session)
 459                 return;
 460
 461         news_group_list_free(session->group_list);
 462         session->group_list = NULL;
 463
 464         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 465         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 466         g_free(path);
 467
 468         if (is_file_exist(filename)) {
 469                 if (remove(filename) < 0)
 470                         FILE_OP_ERROR(filename, "remove");
 471         }
 472         g_free(filename);
 473 }
 474
 475 gint news_post(Folder *folder, const gchar *file)
 476 {
 477         NNTPSession *session;
 478         FILE *fp;
 479         gint ok;
 480
 481         g_return_val_if_fail(folder != NULL, -1);
 482         g_return_val_if_fail(folder->type == F_NEWS, -1);
 483         g_return_val_if_fail(file != NULL, -1);
 484
 485         session = news_session_get(folder);
 486         if (!session) return -1;
 487
 488         if ((fp = fopen(file, "r")) == NULL) {
 489                 FILE_OP_ERROR(file, "fopen");
 490                 return -1;
 491         }
 492
 493         ok = nntp_post(session->nntp_sock, fp);
 494         if (ok != NN_SUCCESS) {
 495                 log_warning(_("can't post article.\n"));
 496                 return -1;
 497         }
 498
 499         fclose(fp);
 500
 501         statusbar_pop_all();
 502
 503         return 0;
 504 }
 505
 506 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 507                                  gint num, gchar *filename)
 508 {
 509         gchar *msgid;
 510
 511         if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
 512             != NN_SUCCESS)
 513                 return -1;
 514
 515         debug_print("Message-Id = %s, num = %d\n", msgid, num);
 516         g_free(msgid);
 517
 518         if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
 519                 log_warning(_("can't retrieve article %d\n"), num);
 520                 return -1;
 521         }
 522
 523         return 0;
 524 }
 525
 526 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 527 {
 528         return news_get_article_cmd(session, "ARTICLE", num, filename);
 529 }
 530
 531 static gint news_get_header(NNTPSession *session, gint num, gchar *filename)
 532 {
 533         return news_get_article_cmd(session, "HEAD", num, filename);
 534 }
 535
 536 /**
 537  * news_select_group:
 538  * @session: Active NNTP session.
 539  * @group: Newsgroup name.
 540  *
 541  * Select newsgroup @group with the GROUP command if it is not already
 542  * selected in @session.
 543  *
 544  * Return value: NNTP result code.
 545  **/
 546 static gint news_select_group(NNTPSession *session, const gchar *group)
 547 {
 548         gint ok;
 549         gint num, first, last;
 550
 551         if (session->group && g_strcasecmp(session->group, group) == 0)
 552                 return NN_SUCCESS;
 553
 554         g_free(session->group);
 555         session->group = NULL;
 556
 557         ok = nntp_group(session->nntp_sock, group, &num, &first, &last);
 558         if (ok == NN_SUCCESS)
 559                 session->group = g_strdup(group);
 560
 561         return ok;
 562 }
 563
 564 static GSList *news_get_uncached_articles(NNTPSession *session,
 565                                           FolderItem *item, gint cache_last,
 566                                           gint *rfirst, gint *rlast)
 567 {
 568         gint ok;
 569         gint num = 0, first = 0, last = 0, begin = 0, end = 0;
 570         gchar buf[NNTPBUFSIZE];
 571         GSList *newlist = NULL;
 572         GSList *llast = NULL;
 573         MsgInfo *msginfo;
 574
 575         if (rfirst) *rfirst = 0;
 576         if (rlast)  *rlast  = 0;
 577
 578         g_return_val_if_fail(session != NULL, NULL);
 579         g_return_val_if_fail(item != NULL, NULL);
 580         g_return_val_if_fail(item->folder != NULL, NULL);
 581         g_return_val_if_fail(item->folder->type == F_NEWS, NULL);
 582
 583         g_free(session->group);
 584         session->group = NULL;
 585
 586         ok = nntp_group(session->nntp_sock, item->path,
 587                         &num, &first, &last);
 588         if (ok != NN_SUCCESS) {
 589                 log_warning(_("can't set group: %s\n"), item->path);
 590                 return NULL;
 591         }
 592         session->group = g_strdup(item->path);
 593
 594         /* calculate getting overview range */
 595         if (first > last) {
 596                 log_warning(_("invalid article range: %d - %d\n"),
 597                             first, last);
 598                 return NULL;
 599         }
 600         if (cache_last < first)
 601                 begin = first;
 602         else if (last < cache_last)
 603                 begin = first;
 604         else if (last == cache_last) {
 605                 debug_print(_("no new articles.\n"));
 606                 return NULL;
 607         } else
 608                 begin = cache_last + 1;
 609         end = last;
 610
 611         if (rfirst) *rfirst = first;
 612         if (rlast)  *rlast  = last;
 613
 614         if (prefs_common.max_articles > 0 &&
 615             end - begin + 1 > prefs_common.max_articles)
 616                 begin = end - prefs_common.max_articles + 1;
 617
 618         log_message(_("getting xover %d - %d in %s...\n"),
 619                     begin, end, item->path);
 620         if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
 621                 log_warning(_("can't get xover\n"));
 622                 return NULL;
 623         }
 624
 625         for (;;) {
 626                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 627                         log_warning(_("error occurred while getting xover.\n"));
 628                         return newlist;
 629                 }
 630
 631                 if (buf[0] == '.' && buf[1] == '\r') break;
 632
 633                 msginfo = news_parse_xover(buf);
 634                 if (!msginfo) {
 635                         log_warning(_("invalid xover line: %s\n"), buf);
 636                         continue;
 637                 }
 638
 639                 msginfo->folder = item;
 640                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
 641                 msginfo->flags.tmp_flags = MSG_NEWS;
 642                 msginfo->newsgroups = g_strdup(item->path);
 643
 644                 if (!newlist)
 645                         llast = newlist = g_slist_append(newlist, msginfo);
 646                 else {
 647                         llast = g_slist_append(llast, msginfo);
 648                         llast = llast->next;
 649                 }
 650         }
 651
 652         if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
 653                 log_warning(_("can't get xhdr\n"));
 654                 return newlist;
 655         }
 656
 657         llast = newlist;
 658
 659         for (;;) {
 660                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 661                         log_warning(_("error occurred while getting xhdr.\n"));
 662                         return newlist;
 663                 }
 664
 665                 if (buf[0] == '.' && buf[1] == '\r') break;
 666                 if (!llast) {
 667                         g_warning("llast == NULL\n");
 668                         continue;
 669                 }
 670
 671                 msginfo = (MsgInfo *)llast->data;
 672                 msginfo->to = news_parse_xhdr(buf, msginfo);
 673
 674                 llast = llast->next;
 675         }
 676
 677         if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
 678                 log_warning(_("can't get xhdr\n"));
 679                 return newlist;
 680         }
 681
 682         llast = newlist;
 683
 684         for (;;) {
 685                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 686                         log_warning(_("error occurred while getting xhdr.\n"));
 687                         return newlist;
 688                 }
 689
 690                 if (buf[0] == '.' && buf[1] == '\r') break;
 691                 if (!llast) {
 692                         g_warning("llast == NULL\n");
 693                         continue;
 694                 }
 695
 696                 msginfo = (MsgInfo *)llast->data;
 697                 msginfo->cc = news_parse_xhdr(buf, msginfo);
 698
 699                 llast = llast->next;
 700         }
 701
 702         return newlist;
 703 }
 704
 705 #define PARSE_ONE_PARAM(p, srcp) \
 706 { \
 707         p = strchr(srcp, '\t'); \
 708         if (!p) return NULL; \
 709         else \
 710                 *p++ = '\0'; \
 711 }
 712
 713 static MsgInfo *news_parse_xover(const gchar *xover_str)
 714 {
 715         MsgInfo *msginfo;
 716         gchar buf[NNTPBUFSIZE];
 717         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 718         gchar *p;
 719         gint num, size_int, line_int;
 720         gchar *xover_buf;
 721
 722         Xstrdup_a(xover_buf, xover_str, return NULL);
 723
 724         PARSE_ONE_PARAM(subject, xover_buf);
 725         PARSE_ONE_PARAM(sender, subject);
 726         PARSE_ONE_PARAM(date, sender);
 727         PARSE_ONE_PARAM(msgid, date);
 728         PARSE_ONE_PARAM(ref, msgid);
 729         PARSE_ONE_PARAM(size, ref);
 730         PARSE_ONE_PARAM(line, size);
 731
 732         tmp = strchr(line, '\t');
 733         if (!tmp) tmp = strchr(line, '\r');
 734         if (!tmp) tmp = strchr(line, '\n');
 735         if (tmp) *tmp = '\0';
 736
 737         num = atoi(xover_str);
 738         size_int = atoi(size);
 739         line_int = atoi(line);
 740
 741         /* set MsgInfo */
 742         msginfo = g_new0(MsgInfo, 1);
 743         msginfo->msgnum = num;
 744         msginfo->size = size_int;
 745
 746         msginfo->date = g_strdup(date);
 747         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 748
 749         conv_unmime_header(buf, sizeof(buf), sender, NULL);
 750         msginfo->from = g_strdup(buf);
 751         msginfo->fromname = procheader_get_fromname(buf);
 752
 753         conv_unmime_header(buf, sizeof(buf), subject, NULL);
 754         msginfo->subject = g_strdup(buf);
 755
 756         extract_parenthesis(msgid, '<', '>');
 757         remove_space(msgid);
 758         if (*msgid != '\0')
 759                 msginfo->msgid = g_strdup(msgid);
 760
 761         msginfo->references = g_strdup(ref);
 762         eliminate_parenthesis(ref, '(', ')');
 763         if ((p = strrchr(ref, '<')) != NULL) {
 764                 extract_parenthesis(p, '<', '>');
 765                 remove_space(p);
 766                 if (*p != '\0')
 767                         msginfo->inreplyto = g_strdup(p);
 768         }
 769
 770         return msginfo;
 771 }
 772
 773 static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
 774 {
 775         gchar *p;
 776         gchar *tmp;
 777         gint num;
 778
 779         p = strchr(xhdr_str, ' ');
 780         if (!p)
 781                 return NULL;
 782         else
 783                 p++;
 784
 785         num = atoi(xhdr_str);
 786         if (msginfo->msgnum != num) return NULL;
 787
 788         tmp = strchr(p, '\r');
 789         if (!tmp) tmp = strchr(p, '\n');
 790
 791         if (tmp)
 792                 return g_strndup(p, tmp - p);
 793         else
 794                 return g_strdup(p);
 795 }
 796
 797 static GSList *news_delete_old_articles(GSList *alist, FolderItem *item,
 798                                         gint first)
 799 {
 800         GSList *cur, *next;
 801         MsgInfo *msginfo;
 802         gchar *dir;
 803
 804         g_return_val_if_fail(item != NULL, alist);
 805         g_return_val_if_fail(item->folder != NULL, alist);
 806         g_return_val_if_fail(item->folder->type == F_NEWS, alist);
 807
 808         if (first < 2) return alist;
 809
 810         debug_print(_("Deleting cached articles 1 - %d ... "), first - 1);
 811
 812         dir = folder_item_get_path(item);
 813         remove_numbered_files(dir, 1, first - 1);
 814         g_free(dir);
 815
 816         for (cur = alist; cur != NULL; ) {
 817                 next = cur->next;
 818
 819                 msginfo = (MsgInfo *)cur->data;
 820                 if (msginfo && msginfo->msgnum < first) {
 821                         procmsg_msginfo_free(msginfo);
 822                         alist = g_slist_remove(alist, msginfo);
 823                 }
 824
 825                 cur = next;
 826         }
 827
 828         return alist;
 829 }
 830
 831 static void news_delete_all_articles(FolderItem *item)
 832 {
 833         gchar *dir;
 834
 835         g_return_if_fail(item != NULL);
 836         g_return_if_fail(item->folder != NULL);
 837         g_return_if_fail(item->folder->type == F_NEWS);
 838
 839         debug_print(_("\tDeleting all cached articles... "));
 840
 841         dir = folder_item_get_path(item);
 842         remove_all_numbered_files(dir);
 843         g_free(dir);
 844
 845         debug_print(_("done.\n"));
 846 }