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