src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 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 void news_folder_init             (Folder        *folder,
  54                                           const gchar   *name,
  55                                           const gchar   *path);
  56
  57 static Session *news_session_new         (const gchar   *server,
  58                                           gushort        port,
  59                                           const gchar   *userid,
  60                                           const gchar   *passwd);
  61
  62 static gint news_get_article_cmd         (NNTPSession   *session,
  63                                           const gchar   *cmd,
  64                                           gint           num,
  65                                           gchar         *filename);
  66 static gint news_get_article             (NNTPSession   *session,
  67                                           gint           num,
  68                                           gchar         *filename);
  69 static gint news_get_header              (NNTPSession   *session,
  70                                           gint           num,
  71                                           gchar         *filename);
  72
  73 static gint news_select_group            (NNTPSession   *session,
  74                                           const gchar   *group);
  75 static GSList *news_get_uncached_articles(NNTPSession   *session,
  76                                           FolderItem    *item,
  77                                           gint           cache_last,
  78                                           gint          *rfirst,
  79                                           gint          *rlast);
  80 static MsgInfo *news_parse_xover         (const gchar   *xover_str);
  81 static gchar *news_parse_xhdr            (const gchar   *xhdr_str,
  82                                           MsgInfo       *msginfo);
  83 static GSList *news_delete_old_articles  (GSList        *alist,
  84                                           FolderItem    *item,
  85                                           gint           first);
  86 static void news_delete_all_articles     (FolderItem    *item);
  87
  88 static gint news_remove_msg              (Folder        *folder,
  89                                           FolderItem    *item,
  90                                           gint           num);
  91
  92 Folder *news_folder_new(const gchar *name, const gchar *path)
  93 {
  94         Folder *folder;
  95
  96         folder = (Folder *)g_new0(NewsFolder, 1);
  97         news_folder_init(folder, name, path);
  98
  99         return folder;
 100 }
 101
 102 void news_folder_destroy(NewsFolder *folder)
 103 {
 104         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 105 }
 106
 107 static void news_folder_init(Folder *folder, const gchar *name,
 108                              const gchar *path)
 109 {
 110         folder_remote_folder_init(folder, name, path);
 111
 112         folder->type = F_NEWS;
 113
 114         folder->get_msg_list = news_get_article_list;
 115         folder->fetch_msg    = news_fetch_msg;
 116         folder->scan         = news_scan_group;
 117         folder->remove_msg   = news_remove_msg;
 118 }
 119
 120 static Session *news_session_new(const gchar *server, gushort port,
 121                                  const gchar *userid, const gchar *passwd)
 122 {
 123         gchar buf[NNTPBUFSIZE];
 124         NNTPSession *session;
 125         NNTPSockInfo *nntp_sock;
 126
 127         g_return_val_if_fail(server != NULL, NULL);
 128
 129         log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
 130
 131         if (userid && passwd)
 132                 nntp_sock = nntp_open_auth(server, port, buf, userid, passwd);
 133         else
 134                 nntp_sock = nntp_open(server, port, buf);
 135         if (nntp_sock == NULL)
 136                 return NULL;
 137
 138         session = g_new(NNTPSession, 1);
 139         SESSION(session)->type             = SESSION_NEWS;
 140         SESSION(session)->server           = g_strdup(server);
 141         session->nntp_sock                 = nntp_sock;
 142         SESSION(session)->sock             = nntp_sock->sock;
 143         SESSION(session)->connected        = TRUE;
 144         SESSION(session)->phase            = SESSION_READY;
 145         SESSION(session)->last_access_time = time(NULL);
 146         SESSION(session)->data             = NULL;
 147         session->group = NULL;
 148
 149         return SESSION(session);
 150 }
 151
 152 void news_session_destroy(NNTPSession *session)
 153 {
 154         nntp_close(session->nntp_sock);
 155         session->nntp_sock = NULL;
 156         SESSION(session)->sock = NULL;
 157
 158         g_free(session->group);
 159 }
 160
 161 static Session *news_session_new_for_folder(Folder *folder)
 162 {
 163         Session *session;
 164         PrefsAccount *ac;
 165         const gchar *userid = NULL;
 166         gchar *passwd = NULL;
 167
 168         g_return_val_if_fail(folder != NULL, NULL);
 169         g_return_val_if_fail(folder->account != NULL, NULL);
 170
 171         ac = folder->account;
 172         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 173                 userid = ac->userid;
 174                 if (ac->passwd && ac->passwd[0])
 175                         passwd = g_strdup(ac->passwd);
 176                 else
 177                         passwd = input_dialog_query_password(ac->nntp_server,
 178                                                              userid);
 179         }
 180
 181         session = news_session_new(ac->nntp_server,
 182                                    ac->set_nntpport ? ac->nntpport : NNTP_PORT,
 183                                    userid, passwd);
 184         g_free(passwd);
 185
 186         return session;
 187 }
 188
 189 NNTPSession *news_session_get(Folder *folder)
 190 {
 191         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 192
 193         g_return_val_if_fail(folder != NULL, NULL);
 194         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 195         g_return_val_if_fail(folder->account != NULL, NULL);
 196
 197         if (!rfolder->session) {
 198                 rfolder->session = news_session_new_for_folder(folder);
 199                 statusbar_pop_all();
 200                 return NNTP_SESSION(rfolder->session);
 201         }
 202
 203         if (time(NULL) - rfolder->session->last_access_time < SESSION_TIMEOUT) {
 204                 rfolder->session->last_access_time = time(NULL);
 205                 statusbar_pop_all();
 206                 return NNTP_SESSION(rfolder->session);
 207         }
 208
 209         if (nntp_mode(NNTP_SESSION(rfolder->session)->nntp_sock, FALSE)
 210             != NN_SUCCESS) {
 211                 log_warning(_("NNTP connection to %s:%d has been"
 212                               " disconnected. Reconnecting...\n"),
 213                             folder->account->nntp_server,
 214                             folder->account->set_nntpport ?
 215                             folder->account->nntpport : NNTP_PORT);
 216                 session_destroy(rfolder->session);
 217                 rfolder->session = news_session_new_for_folder(folder);
 218         }
 219
 220         if (rfolder->session)
 221                 rfolder->session->last_access_time = time(NULL);
 222         statusbar_pop_all();
 223         return NNTP_SESSION(rfolder->session);
 224 }
 225
 226 GSList *news_get_article_list(Folder *folder, FolderItem *item,
 227                               gboolean use_cache)
 228 {
 229         GSList *alist;
 230         NNTPSession *session;
 231
 232         g_return_val_if_fail(folder != NULL, NULL);
 233         g_return_val_if_fail(item != NULL, NULL);
 234         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 235
 236         session = news_session_get(folder);
 237
 238         if (!session) {
 239                 alist = procmsg_read_cache(item, FALSE);
 240                 item->last_num = procmsg_get_last_num_in_cache(alist);
 241         } else if (use_cache) {
 242                 GSList *newlist;
 243                 gint cache_last;
 244                 gint first, last;
 245
 246                 alist = procmsg_read_cache(item, FALSE);
 247
 248                 cache_last = procmsg_get_last_num_in_cache(alist);
 249                 newlist = news_get_uncached_articles
 250                         (session, item, cache_last, &first, &last);
 251                 alist = news_delete_old_articles(alist, item, first);
 252
 253                 alist = g_slist_concat(alist, newlist);
 254                 item->last_num = last;
 255         } else {
 256                 gint last;
 257
 258                 alist = news_get_uncached_articles
 259                         (session, item, 0, NULL, &last);
 260                 news_delete_all_articles(item);
 261                 item->last_num = last;
 262         }
 263
 264         procmsg_set_flags(alist, item);
 265
 266         statusbar_pop_all();
 267
 268         return alist;
 269 }
 270
 271 gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 272 {
 273         gchar *path, *filename;
 274         NNTPSession *session;
 275         gint ok;
 276
 277         g_return_val_if_fail(folder != NULL, NULL);
 278         g_return_val_if_fail(item != NULL, NULL);
 279
 280         path = folder_item_get_path(item);
 281         if (!is_dir_exist(path))
 282                 make_dir_hier(path);
 283         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 284         g_free(path);
 285
 286         if (is_file_exist(filename)) {
 287                 debug_print(_("article %d has been already cached.\n"), num);
 288                 return filename;
 289         }
 290
 291         session = news_session_get(folder);
 292         if (!session) {
 293                 g_free(filename);
 294                 return NULL;
 295         }
 296
 297         ok = news_select_group(session, item->path);
 298         statusbar_pop_all();
 299         if (ok != NN_SUCCESS) {
 300                 g_warning(_("can't select group %s\n"), item->path);
 301                 g_free(filename);
 302                 return NULL;
 303         }
 304
 305         debug_print(_("getting article %d...\n"), num);
 306         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 307                               num, filename);
 308         statusbar_pop_all();
 309         if (ok < 0) {
 310                 g_warning(_("can't read article %d\n"), num);
 311                 g_free(filename);
 312                 return NULL;
 313         }
 314
 315         return filename;
 316 }
 317
 318 void news_scan_group(Folder *folder, FolderItem *item)
 319 {
 320 }
 321
 322 static NewsGroupInfo *news_group_info_new(const gchar *name,
 323                                           gint first, gint last, gchar type)
 324 {
 325         NewsGroupInfo *ginfo;
 326
 327         ginfo = g_new(NewsGroupInfo, 1);
 328         ginfo->name = g_strdup(name);
 329         ginfo->first = first;
 330         ginfo->last = last;
 331         ginfo->type = type;
 332
 333         return ginfo;
 334 }
 335
 336 static void news_group_info_free(NewsGroupInfo *ginfo)
 337 {
 338         g_free(ginfo->name);
 339         g_free(ginfo);
 340 }
 341
 342 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 343                                     NewsGroupInfo *ginfo2)
 344 {
 345         return g_strcasecmp(ginfo1->name, ginfo2->name);
 346 }
 347
 348 GSList *news_get_group_list(Folder *folder)
 349 {
 350         gchar *path, *filename;
 351         FILE *fp;
 352         GSList *list = NULL;
 353         GSList *last = NULL;
 354         gchar buf[NNTPBUFSIZE];
 355
 356         g_return_val_if_fail(folder != NULL, NULL);
 357         g_return_val_if_fail(folder->type == F_NEWS, NULL);
 358
 359         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 360         if (!is_dir_exist(path))
 361                 make_dir_hier(path);
 362         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 363         g_free(path);
 364
 365         if ((fp = fopen(filename, "r")) == NULL) {
 366                 NNTPSession *session;
 367
 368                 session = news_session_get(folder);
 369                 if (!session) {
 370                         g_free(filename);
 371                         return NULL;
 372                 }
 373
 374                 if (nntp_list(session->nntp_sock) != NN_SUCCESS) {
 375                         g_free(filename);
 376                         statusbar_pop_all();
 377                         return NULL;
 378                 }
 379                 statusbar_pop_all();
 380                 if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 381                         log_warning(_("can't retrieve newsgroup list\n"));
 382                         g_free(filename);
 383                         return NULL;
 384                 }
 385
 386                 if ((fp = fopen(filename, "r")) == NULL) {
 387                         FILE_OP_ERROR(filename, "fopen");
 388                         g_free(filename);
 389                         return NULL;
 390                 }
 391         }
 392
 393         while (fgets(buf, sizeof(buf), fp) != NULL) {
 394                 gchar *p = buf;
 395                 gchar *name;
 396                 gint last_num;
 397                 gint first_num;
 398                 gchar type;
 399                 NewsGroupInfo *ginfo;
 400
 401                 p = strchr(p, ' ');
 402                 if (!p) continue;
 403                 *p = '\0';
 404                 p++;
 405                 name = buf;
 406
 407                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 408                         continue;
 409
 410                 ginfo = news_group_info_new(name, first_num, last_num, type);
 411
 412                 if (!last)
 413                         last = list = g_slist_append(NULL, ginfo);
 414                 else {
 415                         last = g_slist_append(last, ginfo);
 416                         last = last->next;
 417                 }
 418         }
 419
 420         fclose(fp);
 421         g_free(filename);
 422
 423         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 424
 425         statusbar_pop_all();
 426
 427         return list;
 428 }
 429
 430 void news_group_list_free(GSList *group_list)
 431 {
 432         GSList *cur;
 433
 434         if (!group_list) return;
 435
 436         for (cur = group_list; cur != NULL; cur = cur->next)
 437                 news_group_info_free((NewsGroupInfo *)cur->data);
 438         g_slist_free(group_list);
 439 }
 440
 441 void news_remove_group_list_cache(Folder *folder)
 442 {
 443         gchar *path, *filename;
 444
 445         g_return_if_fail(folder != NULL);
 446         g_return_if_fail(folder->type == F_NEWS);
 447
 448         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 449         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 450         g_free(path);
 451
 452         if (is_file_exist(filename)) {
 453                 if (remove(filename) < 0)
 454                         FILE_OP_ERROR(filename, "remove");
 455         }
 456         g_free(filename);
 457 }
 458
 459 gint news_post(Folder *folder, const gchar *file)
 460 {
 461         NNTPSession *session;
 462         FILE *fp;
 463         gint ok;
 464
 465         g_return_val_if_fail(folder != NULL, -1);
 466         g_return_val_if_fail(folder->type == F_NEWS, -1);
 467         g_return_val_if_fail(file != NULL, -1);
 468
 469         session = news_session_get(folder);
 470         if (!session) return -1;
 471
 472         if ((fp = fopen(file, "r")) == NULL) {
 473                 FILE_OP_ERROR(file, "fopen");
 474                 return -1;
 475         }
 476
 477         ok = nntp_post(session->nntp_sock, fp);
 478         if (ok != NN_SUCCESS) {
 479                 log_warning(_("can't post article.\n"));
 480                 return -1;
 481         }
 482
 483         fclose(fp);
 484
 485         statusbar_pop_all();
 486
 487         return 0;
 488 }
 489
 490 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 491                                  gint num, gchar *filename)
 492 {
 493         gchar *msgid;
 494
 495         if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
 496             != NN_SUCCESS)
 497                 return -1;
 498
 499         debug_print("Message-Id = %s, num = %d\n", msgid, num);
 500         g_free(msgid);
 501
 502         if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
 503                 log_warning(_("can't retrieve article %d\n"), num);
 504                 return -1;
 505         }
 506
 507         return 0;
 508 }
 509
 510 static gint news_remove_msg(Folder *folder, FolderItem *item, gint num)
 511 {
 512         return 0;
 513 }
 514
 515 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 516 {
 517         return news_get_article_cmd(session, "ARTICLE", num, filename);
 518 }
 519
 520 static gint news_get_header(NNTPSession *session, gint num, gchar *filename)
 521 {
 522         return news_get_article_cmd(session, "HEAD", num, filename);
 523 }
 524
 525 /**
 526  * news_select_group:
 527  * @session: Active NNTP session.
 528  * @group: Newsgroup name.
 529  *
 530  * Select newsgroup @group with the GROUP command if it is not already
 531  * selected in @session.
 532  *
 533  * Return value: NNTP result code.
 534  **/
 535 static gint news_select_group(NNTPSession *session, const gchar *group)
 536 {
 537         gint ok;
 538         gint num, first, last;
 539
 540         if (session->group && g_strcasecmp(session->group, group) == 0)
 541                 return NN_SUCCESS;
 542
 543         g_free(session->group);
 544         session->group = NULL;
 545
 546         ok = nntp_group(session->nntp_sock, group, &num, &first, &last);
 547         if (ok == NN_SUCCESS)
 548                 session->group = g_strdup(group);
 549
 550         return ok;
 551 }
 552
 553 static GSList *news_get_uncached_articles(NNTPSession *session,
 554                                           FolderItem *item, gint cache_last,
 555                                           gint *rfirst, gint *rlast)
 556 {
 557         gint ok;
 558         gint num = 0, first = 0, last = 0, begin = 0, end = 0;
 559         gchar buf[NNTPBUFSIZE];
 560         GSList *newlist = NULL;
 561         GSList *llast = NULL;
 562         MsgInfo *msginfo;
 563
 564         if (rfirst) *rfirst = 0;
 565         if (rlast)  *rlast  = 0;
 566
 567         g_return_val_if_fail(session != NULL, NULL);
 568         g_return_val_if_fail(item != NULL, NULL);
 569         g_return_val_if_fail(item->folder != NULL, NULL);
 570         g_return_val_if_fail(item->folder->type == F_NEWS, NULL);
 571
 572         g_free(session->group);
 573         session->group = NULL;
 574
 575         ok = nntp_group(session->nntp_sock, item->path,
 576                         &num, &first, &last);
 577         if (ok != NN_SUCCESS) {
 578                 log_warning(_("can't set group: %s\n"), item->path);
 579                 return NULL;
 580         }
 581         session->group = g_strdup(item->path);
 582
 583         /* calculate getting overview range */
 584         if (first > last) {
 585                 log_warning(_("invalid article range: %d - %d\n"),
 586                             first, last);
 587                 return NULL;
 588         }
 589         if (cache_last < first)
 590                 begin = first;
 591         else if (last < cache_last)
 592                 begin = first;
 593         else if (last == cache_last) {
 594                 debug_print(_("no new articles.\n"));
 595                 return NULL;
 596         } else
 597                 begin = cache_last + 1;
 598         end = last;
 599
 600         if (rfirst) *rfirst = first;
 601         if (rlast)  *rlast  = last;
 602
 603         if (prefs_common.max_articles > 0 &&
 604             end - begin + 1 > prefs_common.max_articles)
 605                 begin = end - prefs_common.max_articles + 1;
 606
 607         log_message(_("getting xover %d - %d in %s...\n"),
 608                     begin, end, item->path);
 609         if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
 610                 log_warning(_("can't get xover\n"));
 611                 return NULL;
 612         }
 613
 614         for (;;) {
 615                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 616                         log_warning(_("error occurred while getting xover.\n"));
 617                         return newlist;
 618                 }
 619
 620                 if (buf[0] == '.' && buf[1] == '\r') break;
 621
 622                 msginfo = news_parse_xover(buf);
 623                 if (!msginfo) {
 624                         log_warning(_("invalid xover line: %s\n"), buf);
 625                         continue;
 626                 }
 627
 628                 msginfo->folder = item;
 629                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
 630                 msginfo->flags.tmp_flags = MSG_NEWS;
 631                 msginfo->newsgroups = g_strdup(item->path);
 632
 633                 if (!newlist)
 634                         llast = newlist = g_slist_append(newlist, msginfo);
 635                 else {
 636                         llast = g_slist_append(llast, msginfo);
 637                         llast = llast->next;
 638                 }
 639         }
 640
 641         if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
 642                 log_warning(_("can't get xhdr\n"));
 643                 return newlist;
 644         }
 645
 646         llast = newlist;
 647
 648         for (;;) {
 649                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 650                         log_warning(_("error occurred while getting xhdr.\n"));
 651                         return newlist;
 652                 }
 653
 654                 if (buf[0] == '.' && buf[1] == '\r') break;
 655                 if (!llast) {
 656                         g_warning("llast == NULL\n");
 657                         continue;
 658                 }
 659
 660                 msginfo = (MsgInfo *)llast->data;
 661                 msginfo->to = news_parse_xhdr(buf, msginfo);
 662
 663                 llast = llast->next;
 664         }
 665
 666         if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
 667                 log_warning(_("can't get xhdr\n"));
 668                 return newlist;
 669         }
 670
 671         llast = newlist;
 672
 673         for (;;) {
 674                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 675                         log_warning(_("error occurred while getting xhdr.\n"));
 676                         return newlist;
 677                 }
 678
 679                 if (buf[0] == '.' && buf[1] == '\r') break;
 680                 if (!llast) {
 681                         g_warning("llast == NULL\n");
 682                         continue;
 683                 }
 684
 685                 msginfo = (MsgInfo *)llast->data;
 686                 msginfo->cc = news_parse_xhdr(buf, msginfo);
 687
 688                 llast = llast->next;
 689         }
 690
 691         return newlist;
 692 }
 693
 694 #define PARSE_ONE_PARAM(p, srcp) \
 695 { \
 696         p = strchr(srcp, '\t'); \
 697         if (!p) return NULL; \
 698         else \
 699                 *p++ = '\0'; \
 700 }
 701
 702 static MsgInfo *news_parse_xover(const gchar *xover_str)
 703 {
 704         MsgInfo *msginfo;
 705         gchar buf[NNTPBUFSIZE];
 706         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 707         gchar *p;
 708         gint num, size_int, line_int;
 709         gchar *xover_buf;
 710
 711         Xstrdup_a(xover_buf, xover_str, return NULL);
 712
 713         PARSE_ONE_PARAM(subject, xover_buf);
 714         PARSE_ONE_PARAM(sender, subject);
 715         PARSE_ONE_PARAM(date, sender);
 716         PARSE_ONE_PARAM(msgid, date);
 717         PARSE_ONE_PARAM(ref, msgid);
 718         PARSE_ONE_PARAM(size, ref);
 719         PARSE_ONE_PARAM(line, size);
 720
 721         tmp = strchr(line, '\t');
 722         if (!tmp) tmp = strchr(line, '\r');
 723         if (!tmp) tmp = strchr(line, '\n');
 724         if (tmp) *tmp = '\0';
 725
 726         num = atoi(xover_str);
 727         size_int = atoi(size);
 728         line_int = atoi(line);
 729
 730         /* set MsgInfo */
 731         msginfo = g_new0(MsgInfo, 1);
 732         msginfo->msgnum = num;
 733         msginfo->size = size_int;
 734
 735         msginfo->date = g_strdup(date);
 736         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 737
 738         conv_unmime_header(buf, sizeof(buf), sender, NULL);
 739         msginfo->from = g_strdup(buf);
 740         msginfo->fromname = procheader_get_fromname(buf);
 741
 742         conv_unmime_header(buf, sizeof(buf), subject, NULL);
 743         msginfo->subject = g_strdup(buf);
 744
 745         extract_parenthesis(msgid, '<', '>');
 746         remove_space(msgid);
 747         if (*msgid != '\0')
 748                 msginfo->msgid = g_strdup(msgid);
 749
 750         msginfo->references = g_strdup(ref);
 751         eliminate_parenthesis(ref, '(', ')');
 752         if ((p = strrchr(ref, '<')) != NULL) {
 753                 extract_parenthesis(p, '<', '>');
 754                 remove_space(p);
 755                 if (*p != '\0')
 756                         msginfo->inreplyto = g_strdup(p);
 757         }
 758
 759         return msginfo;
 760 }
 761
 762 static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
 763 {
 764         gchar *p;
 765         gchar *tmp;
 766         gint num;
 767
 768         p = strchr(xhdr_str, ' ');
 769         if (!p)
 770                 return NULL;
 771         else
 772                 p++;
 773
 774         num = atoi(xhdr_str);
 775         if (msginfo->msgnum != num) return NULL;
 776
 777         tmp = strchr(p, '\r');
 778         if (!tmp) tmp = strchr(p, '\n');
 779
 780         if (tmp)
 781                 return g_strndup(p, tmp - p);
 782         else
 783                 return g_strdup(p);
 784 }
 785
 786 static GSList *news_delete_old_articles(GSList *alist, FolderItem *item,
 787                                         gint first)
 788 {
 789         GSList *cur, *next;
 790         MsgInfo *msginfo;
 791         gchar *dir;
 792
 793         g_return_val_if_fail(item != NULL, alist);
 794         g_return_val_if_fail(item->folder != NULL, alist);
 795         g_return_val_if_fail(item->folder->type == F_NEWS, alist);
 796
 797         if (first < 2) return alist;
 798
 799         debug_print(_("Deleting cached articles 1 - %d ... "), first - 1);
 800
 801         dir = folder_item_get_path(item);
 802         remove_numbered_files(dir, 1, first - 1);
 803         g_free(dir);
 804
 805         for (cur = alist; cur != NULL; ) {
 806                 next = cur->next;
 807
 808                 msginfo = (MsgInfo *)cur->data;
 809                 if (msginfo && msginfo->msgnum < first) {
 810                         procmsg_msginfo_free(msginfo);
 811                         alist = g_slist_remove(alist, msginfo);
 812                 }
 813
 814                 cur = next;
 815         }
 816
 817         return alist;
 818 }
 819
 820 static void news_delete_all_articles(FolderItem *item)
 821 {
 822         gchar *dir;
 823
 824         g_return_if_fail(item != NULL);
 825         g_return_if_fail(item->folder != NULL);
 826         g_return_if_fail(item->folder->type == F_NEWS);
 827
 828         debug_print(_("\tDeleting all cached articles... "));
 829
 830         dir = folder_item_get_path(item);
 831         remove_all_numbered_files(dir);
 832         g_free(dir);
 833
 834         debug_print(_("done.\n"));
 835 }