src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2011 Hiroyuki Yamamoto and the Claws Mail team
   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 3 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, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #ifdef HAVE_LIBETPAN
  25
  26 #include "defs.h"
  27
  28 #include <glib.h>
  29 #include <glib/gi18n.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <stdlib.h>
  33 #include <dirent.h>
  34 #include <unistd.h>
  35 #include <time.h>
  36 #include <libetpan/libetpan.h>
  37
  38 #include "nntp-thread.h"
  39 #include "news.h"
  40 #include "news_gtk.h"
  41 #include "socket.h"
  42 #include "recv.h"
  43 #include "procmsg.h"
  44 #include "procheader.h"
  45 #include "folder.h"
  46 #include "session.h"
  47 #include "statusbar.h"
  48 #include "codeconv.h"
  49 #include "utils.h"
  50 #include "prefs_common.h"
  51 #include "prefs_account.h"
  52 #include "inputdialog.h"
  53 #include "log.h"
  54 #include "progressindicator.h"
  55 #include "remotefolder.h"
  56 #include "alertpanel.h"
  57 #include "inc.h"
  58 #ifdef USE_GNUTLS
  59 #  include "ssl.h"
  60 #endif
  61
  62 #define NNTP_PORT       119
  63 #ifdef USE_GNUTLS
  64 #define NNTPS_PORT      563
  65 #endif
  66
  67 typedef struct _NewsFolder      NewsFolder;
  68 typedef struct _NewsSession     NewsSession;
  69
  70 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  71 #define NEWS_SESSION(obj)       ((NewsSession *)obj)
  72
  73 struct _NewsFolder
  74 {
  75         RemoteFolder rfolder;
  76
  77         gboolean use_auth;
  78         gboolean lock_count;
  79         guint refcnt;
  80 };
  81
  82 struct _NewsSession
  83 {
  84         Session session;
  85
  86         gchar *group;
  87 };
  88
  89 static void news_folder_init(Folder *folder, const gchar *name,
  90                              const gchar *path);
  91
  92 static Folder   *news_folder_new        (const gchar    *name,
  93                                          const gchar    *folder);
  94 static void      news_folder_destroy    (Folder         *folder);
  95
  96 static gchar *news_fetch_msg            (Folder         *folder,
  97                                          FolderItem     *item,
  98                                          gint            num);
  99 static void news_remove_cached_msg      (Folder         *folder,
 100                                          FolderItem     *item,
 101                                          MsgInfo        *msginfo);
 102 #ifdef USE_GNUTLS
 103 static Session *news_session_new         (Folder        *folder,
 104                                           const gchar   *server,
 105                                           gushort        port,
 106                                           const gchar   *userid,
 107                                           const gchar   *passwd,
 108                                           SSLType        ssl_type);
 109 #else
 110 static Session *news_session_new         (Folder        *folder,
 111                                           const gchar   *server,
 112                                           gushort        port,
 113                                           const gchar   *userid,
 114                                           const gchar   *passwd);
 115 #endif
 116
 117 static gint news_get_article             (Folder        *folder,
 118                                           gint           num,
 119                                           gchar         *filename);
 120
 121 static gint news_select_group            (Folder        *folder,
 122                                           const gchar   *group,
 123                                           gint          *num,
 124                                           gint          *first,
 125                                           gint          *last);
 126 static MsgInfo *news_parse_xover         (struct newsnntp_xover_resp_item *item);
 127 static gint news_get_num_list                    (Folder        *folder,
 128                                           FolderItem    *item,
 129                                           GSList       **list,
 130                                           gboolean      *old_uids_valid);
 131 static MsgInfo *news_get_msginfo                 (Folder        *folder,
 132                                           FolderItem    *item,
 133                                           gint           num);
 134 static GSList *news_get_msginfos                 (Folder        *folder,
 135                                           FolderItem    *item,
 136                                           GSList        *msgnum_list);
 137 static gboolean news_scan_required               (Folder        *folder,
 138                                           FolderItem    *item);
 139
 140 static gchar *news_folder_get_path       (Folder        *folder);
 141 static gchar *news_item_get_path                 (Folder        *folder,
 142                                           FolderItem    *item);
 143 static void news_synchronise             (FolderItem    *item, gint days);
 144 static int news_remove_msg               (Folder        *folder,
 145                                           FolderItem    *item,
 146                                           gint           msgnum);
 147 static gint news_rename_folder           (Folder *folder,
 148                                           FolderItem *item,
 149                                           const gchar *name);
 150 static gint news_remove_folder           (Folder        *folder,
 151                                           FolderItem    *item);
 152 static FolderClass news_class;
 153
 154 FolderClass *news_get_class(void)
 155 {
 156         if (news_class.idstr == NULL) {
 157                 news_class.type = F_NEWS;
 158                 news_class.idstr = "news";
 159                 news_class.uistr = "News";
 160
 161                 /* Folder functions */
 162                 news_class.new_folder = news_folder_new;
 163                 news_class.destroy_folder = news_folder_destroy;
 164
 165                 /* FolderItem functions */
 166                 news_class.item_get_path = news_item_get_path;
 167                 news_class.get_num_list = news_get_num_list;
 168                 news_class.scan_required = news_scan_required;
 169                 news_class.rename_folder = news_rename_folder;
 170                 news_class.remove_folder = news_remove_folder;
 171
 172                 /* Message functions */
 173                 news_class.get_msginfo = news_get_msginfo;
 174                 news_class.get_msginfos = news_get_msginfos;
 175                 news_class.fetch_msg = news_fetch_msg;
 176                 news_class.synchronise = news_synchronise;
 177                 news_class.remove_msg = news_remove_msg;
 178                 news_class.remove_cached_msg = news_remove_cached_msg;
 179         };
 180
 181         return &news_class;
 182 }
 183
 184 guint nntp_folder_get_refcnt(Folder *folder)
 185 {
 186         return ((NewsFolder *)folder)->refcnt;
 187 }
 188
 189 void nntp_folder_ref(Folder *folder)
 190 {
 191         ((NewsFolder *)folder)->refcnt++;
 192 }
 193
 194 void nntp_folder_unref(Folder *folder)
 195 {
 196         if (((NewsFolder *)folder)->refcnt > 0)
 197                 ((NewsFolder *)folder)->refcnt--;
 198 }
 199
 200 static int news_remove_msg               (Folder        *folder,
 201                                           FolderItem    *item,
 202                                           gint           msgnum)
 203 {
 204         gchar *path, *filename;
 205
 206         cm_return_val_if_fail(folder != NULL, -1);
 207         cm_return_val_if_fail(item != NULL, -1);
 208
 209         path = folder_item_get_path(item);
 210         if (!is_dir_exist(path))
 211                 make_dir_hier(path);
 212
 213         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 214         g_free(path);
 215         claws_unlink(filename);
 216         g_free(filename);
 217         return 0;
 218 }
 219
 220 static void news_folder_lock(NewsFolder *folder)
 221 {
 222         folder->lock_count++;
 223 }
 224
 225 static void news_folder_unlock(NewsFolder *folder)
 226 {
 227         if (folder->lock_count > 0)
 228                 folder->lock_count--;
 229 }
 230
 231 int news_folder_locked(Folder *folder)
 232 {
 233         if (folder == NULL)
 234                 return 0;
 235
 236         return NEWS_FOLDER(folder)->lock_count;
 237 }
 238
 239 static Folder *news_folder_new(const gchar *name, const gchar *path)
 240 {
 241         Folder *folder;
 242
 243         folder = (Folder *)g_new0(NewsFolder, 1);
 244         folder->klass = &news_class;
 245         news_folder_init(folder, name, path);
 246
 247         return folder;
 248 }
 249
 250 static void news_folder_destroy(Folder *folder)
 251 {
 252         gchar *dir;
 253
 254         while (nntp_folder_get_refcnt(folder) > 0)
 255                 gtk_main_iteration();
 256
 257         dir = news_folder_get_path(folder);
 258         if (is_dir_exist(dir))
 259                 remove_dir_recursive(dir);
 260         g_free(dir);
 261
 262         nntp_done(folder);
 263         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 264 }
 265
 266 static void news_folder_init(Folder *folder, const gchar *name,
 267                              const gchar *path)
 268 {
 269         folder_remote_folder_init(folder, name, path);
 270 }
 271
 272 static void news_session_destroy(Session *session)
 273 {
 274         NewsSession *news_session = NEWS_SESSION(session);
 275
 276         cm_return_if_fail(session != NULL);
 277
 278         if (news_session->group)
 279                 g_free(news_session->group);
 280 }
 281
 282 #ifdef USE_GNUTLS
 283 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 284                                  const gchar *userid, const gchar *passwd,
 285                                  SSLType ssl_type)
 286 #else
 287 static Session *news_session_new(Folder *folder, const gchar *server, gushort port,
 288                                  const gchar *userid, const gchar *passwd)
 289 #endif
 290 {
 291         NewsSession *session;
 292         int r = 0;
 293         cm_return_val_if_fail(server != NULL, NULL);
 294
 295         log_message(LOG_PROTOCOL, _("Account '%s': Connecting to NNTP server: %s...\n"),
 296                                     folder->account->account_name, server);
 297
 298         session = g_new0(NewsSession, 1);
 299         session_init(SESSION(session), folder->account, FALSE);
 300         SESSION(session)->type             = SESSION_NEWS;
 301         SESSION(session)->server           = g_strdup(server);
 302         SESSION(session)->port             = port;
 303         SESSION(session)->sock             = NULL;
 304         SESSION(session)->destroy          = news_session_destroy;
 305
 306         nntp_init(folder);
 307
 308 #ifdef USE_GNUTLS
 309         if (ssl_type != SSL_NONE)
 310                 r = nntp_threaded_connect_ssl(folder, server, port);
 311         else
 312 #endif
 313                 r = nntp_threaded_connect(folder, server, port);
 314
 315         if (r != NEWSNNTP_NO_ERROR) {
 316                 log_error(LOG_PROTOCOL, _("Error logging in to %s:%d ...\n"), server, port);
 317                 session_destroy(SESSION(session));
 318                 return NULL;
 319         }
 320
 321         return SESSION(session);
 322 }
 323
 324 static Session *news_session_new_for_folder(Folder *folder)
 325 {
 326         Session *session;
 327         PrefsAccount *ac;
 328         const gchar *userid = NULL;
 329         gchar *passwd = NULL;
 330         gushort port;
 331         int r;
 332
 333         cm_return_val_if_fail(folder != NULL, NULL);
 334         cm_return_val_if_fail(folder->account != NULL, NULL);
 335
 336         ac = folder->account;
 337         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 338                 userid = ac->userid;
 339                 if (ac->passwd && ac->passwd[0])
 340                         passwd = g_strdup(ac->passwd);
 341                 else
 342                         passwd = input_dialog_query_password_keep(ac->nntp_server,
 343                                                                   userid,
 344                                                                   &(ac->session_passwd));
 345         }
 346
 347 #ifdef USE_GNUTLS
 348         port = ac->set_nntpport ? ac->nntpport
 349                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 350         session = news_session_new(folder, ac->nntp_server, port, userid, passwd,
 351                                    ac->ssl_nntp);
 352 #else
 353         if (ac->ssl_nntp != SSL_NONE) {
 354                 if (alertpanel_full(_("Insecure connection"),
 355                         _("This connection is configured to be secured "
 356                           "using SSL, but SSL is not available in this "
 357                           "build of Claws Mail. \n\n"
 358                           "Do you want to continue connecting to this "
 359                           "server? The communication would not be "
 360                           "secure."),
 361                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 362                           NULL, FALSE, NULL, ALERT_WARNING,
 363                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 364                         return NULL;
 365         }
 366         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 367         session = news_session_new(folder, ac->nntp_server, port, userid, passwd);
 368 #endif
 369
 370         r = nntp_threaded_mode_reader(folder);
 371         if (r != NEWSNNTP_NO_ERROR) {
 372             if (r == NEWSNNTP_WARNING_REQUEST_AUTHORIZATION_USERNAME) {
 373                 /*
 374                    FIX ME when libetpan implements 480 to indicate authorization
 375                    is required to use this capability. Libetpan treats a 480 as a
 376                    381 which is clearly wrong.
 377                    RFC 4643 section 2.
 378                    Response code 480
 379                    Generic response
 380                    Meaning: command unavailable until the client
 381                    has authenticated itself.
 382                 */
 383                 /* if the server does not advertise the capability MODE-READER,
 384                    we normally should not send MODE READER. However this can't
 385                    hurt: a transit-only server returns 502 and closes the cnx.
 386                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 387                 */
 388                 log_error(LOG_PROTOCOL, _("Libetpan does not support return code 480 "
 389                 "so for now we choose to continue\n"));
 390             }
 391             else if (r == NEWSNNTP_ERROR_UNEXPECTED_RESPONSE) {
 392                 /* if the server does not advertise the capability MODE-READER,
 393                    we normally should not send MODE READER. However this can't
 394                    hurt: a transit-only server returns 502 and closes the cnx.
 395                    Ref.: http://tools.ietf.org/html/rfc3977#section-5.3
 396                 */
 397                 log_error(LOG_PROTOCOL, _("Mode reader failed, continuing nevertheless\n"));
 398             }
 399             else {
 400                 /* An error state bail out */
 401                 log_error(LOG_PROTOCOL, _("Error creating session with %s:%d\n"), ac->nntp_server, port);
 402                 session_destroy(SESSION(session));
 403                 g_free(passwd);
 404                 if (ac->session_passwd) {
 405                         g_free(ac->session_passwd);
 406                         ac->session_passwd = NULL;
 407                 }
 408                 return NULL;
 409             }
 410         }
 411
 412         if ((session != NULL) && ac->use_nntp_auth) { /* FIXME:  && ac->use_nntp_auth_onconnect */
 413                 if (nntp_threaded_login(folder, userid, passwd) !=
 414                         NEWSNNTP_NO_ERROR) {
 415                         log_error(LOG_PROTOCOL, _("Error authenticating to %s:%d ...\n"), ac->nntp_server, port);
 416                         session_destroy(SESSION(session));
 417                         g_free(passwd);
 418                         if (ac->session_passwd) {
 419                                 g_free(ac->session_passwd);
 420                                 ac->session_passwd = NULL;
 421                         }
 422                         return NULL;
 423                 }
 424         }
 425         g_free(passwd);
 426
 427         return session;
 428 }
 429
 430 static NewsSession *news_session_get(Folder *folder)
 431 {
 432         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 433         struct tm lt;
 434         int r;
 435
 436         cm_return_val_if_fail(folder != NULL, NULL);
 437         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 438         cm_return_val_if_fail(folder->account != NULL, NULL);
 439
 440         if (prefs_common.work_offline &&
 441             !inc_offline_should_override(FALSE,
 442                 _("Claws Mail needs network access in order "
 443                   "to access the News server."))) {
 444                 return NULL;
 445         }
 446
 447         if (!rfolder->session) {
 448                 rfolder->session = news_session_new_for_folder(folder);
 449                 return NEWS_SESSION(rfolder->session);
 450         }
 451
 452         /* Handle port change (also ssl/nossl change) without needing to
 453          * restart application. */
 454         if (rfolder->session->port != folder->account->nntpport) {
 455                 session_destroy(rfolder->session);
 456                 rfolder->session = news_session_new_for_folder(folder);
 457                 goto newsession;
 458         }
 459
 460         if (time(NULL) - rfolder->session->last_access_time <
 461                 SESSION_TIMEOUT_INTERVAL) {
 462                 return NEWS_SESSION(rfolder->session);
 463         }
 464
 465         if ((r = nntp_threaded_date(folder, &lt)) != NEWSNNTP_NO_ERROR) {
 466                 if (r != NEWSNNTP_ERROR_COMMAND_NOT_SUPPORTED &&
 467                     r != NEWSNNTP_ERROR_COMMAND_NOT_UNDERSTOOD) {
 468                         log_warning(LOG_PROTOCOL, _("NNTP connection to %s:%d has been"
 469                               " disconnected. Reconnecting...\n"),
 470                             folder->account->nntp_server,
 471                             folder->account->set_nntpport ?
 472                             folder->account->nntpport : NNTP_PORT);
 473                         session_destroy(rfolder->session);
 474                         rfolder->session = news_session_new_for_folder(folder);
 475                 }
 476         }
 477
 478 newsession:
 479         if (rfolder->session)
 480                 session_set_access_time(rfolder->session);
 481
 482         return NEWS_SESSION(rfolder->session);
 483 }
 484
 485 static void news_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *msginfo)
 486 {
 487         gchar *path, *filename;
 488
 489         path = folder_item_get_path(item);
 490
 491         if (!is_dir_exist(path)) {
 492                 g_free(path);
 493                 return;
 494         }
 495
 496         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
 497         g_free(path);
 498
 499         if (is_file_exist(filename)) {
 500                 claws_unlink(filename);
 501         }
 502         g_free(filename);
 503 }
 504
 505 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 506 {
 507         gchar *path, *filename;
 508         NewsSession *session;
 509         gint ok;
 510
 511         cm_return_val_if_fail(folder != NULL, NULL);
 512         cm_return_val_if_fail(item != NULL, NULL);
 513
 514         path = folder_item_get_path(item);
 515         if (!is_dir_exist(path))
 516                 make_dir_hier(path);
 517         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 518         g_free(path);
 519
 520         if (is_file_exist(filename)) {
 521                 debug_print("article %d has been already cached.\n", num);
 522                 return filename;
 523         }
 524
 525         session = news_session_get(folder);
 526         if (!session) {
 527                 g_free(filename);
 528                 return NULL;
 529         }
 530
 531         ok = news_select_group(folder, item->path, NULL, NULL, NULL);
 532         if (ok != NEWSNNTP_NO_ERROR) {
 533                 if (ok == NEWSNNTP_ERROR_STREAM) {
 534                         session_destroy(SESSION(session));
 535                         REMOTE_FOLDER(folder)->session = NULL;
 536                 }
 537                 g_free(filename);
 538                 return NULL;
 539         }
 540
 541         debug_print("getting article %d...\n", num);
 542         ok = news_get_article(folder,
 543                               num, filename);
 544         if (ok != NEWSNNTP_NO_ERROR) {
 545                 g_warning("can't read article %d\n", num);
 546                 if (ok == NEWSNNTP_ERROR_STREAM) {
 547                         session_destroy(SESSION(session));
 548                         REMOTE_FOLDER(folder)->session = NULL;
 549                 }
 550                 g_free(filename);
 551                 return NULL;
 552         }
 553         GTK_EVENTS_FLUSH();
 554         return filename;
 555 }
 556
 557 static NewsGroupInfo *news_group_info_new(const gchar *name,
 558                                           gint first, gint last, gchar type)
 559 {
 560         NewsGroupInfo *ginfo;
 561
 562         ginfo = g_new(NewsGroupInfo, 1);
 563         ginfo->name = g_strdup(name);
 564         ginfo->first = first;
 565         ginfo->last = last;
 566         ginfo->type = type;
 567
 568         return ginfo;
 569 }
 570
 571 static void news_group_info_free(NewsGroupInfo *ginfo)
 572 {
 573         g_free(ginfo->name);
 574         g_free(ginfo);
 575 }
 576
 577 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 578                                     NewsGroupInfo *ginfo2)
 579 {
 580         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 581 }
 582
 583 GSList *news_get_group_list(Folder *folder)
 584 {
 585         gchar *path, *filename;
 586         FILE *fp;
 587         GSList *list = NULL;
 588         GSList *last = NULL;
 589         gchar buf[BUFFSIZE];
 590
 591         cm_return_val_if_fail(folder != NULL, NULL);
 592         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 593
 594         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 595         if (!is_dir_exist(path))
 596                 make_dir_hier(path);
 597         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 598         g_free(path);
 599
 600         if ((fp = g_fopen(filename, "rb")) == NULL) {
 601                 NewsSession *session;
 602                 gint ok;
 603                 clist *grouplist = NULL;
 604                 clistiter *cur;
 605                 fp = g_fopen(filename, "wb");
 606
 607                 if (!fp) {
 608                         g_free(filename);
 609                         return NULL;
 610                 }
 611                 session = news_session_get(folder);
 612                 if (!session) {
 613                         fclose(fp);
 614                         g_free(filename);
 615                         return NULL;
 616                 }
 617
 618                 ok = nntp_threaded_list(folder, &grouplist);
 619
 620                 if (ok != NEWSNNTP_NO_ERROR) {
 621                         if (ok == NEWSNNTP_ERROR_STREAM) {
 622                                 session_destroy(SESSION(session));
 623                                 REMOTE_FOLDER(folder)->session = NULL;
 624                         }
 625                         fclose(fp);
 626                         g_free(filename);
 627                         return NULL;
 628                 }
 629
 630                 if (grouplist) {
 631                         for (cur = clist_begin(grouplist); cur; cur = clist_next(cur)) {
 632                                 struct newsnntp_group_info *info = (struct newsnntp_group_info *)
 633                                                                         clist_content(cur);
 634                                 if (fprintf(fp, "%s %d %d %c\n",
 635                                         info->grp_name,
 636                                         info->grp_last,
 637                                         info->grp_first,
 638                                         info->grp_type) < 0) {
 639                                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 640                                         session_destroy(SESSION(session));
 641                                         REMOTE_FOLDER(folder)->session = NULL;
 642                                         fclose(fp);
 643                                         g_free(filename);
 644                                         newsnntp_list_free(grouplist);
 645                                         return NULL;
 646                                 }
 647                         }
 648                         newsnntp_list_free(grouplist);
 649                 }
 650                 if (fclose(fp) == EOF) {
 651                         log_error(LOG_PROTOCOL, ("Can't write newsgroup list\n"));
 652                         session_destroy(SESSION(session));
 653                         REMOTE_FOLDER(folder)->session = NULL;
 654                         g_free(filename);
 655                         return NULL;
 656                 }
 657
 658                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 659                         FILE_OP_ERROR(filename, "fopen");
 660                         g_free(filename);
 661                         return NULL;
 662                 }
 663         }
 664
 665         while (fgets(buf, sizeof(buf), fp) != NULL) {
 666                 gchar *p = buf;
 667                 gchar *name;
 668                 gint last_num;
 669                 gint first_num;
 670                 gchar type;
 671                 NewsGroupInfo *ginfo;
 672
 673                 p = strchr(p, ' ');
 674                 if (!p) continue;
 675                 *p = '\0';
 676                 p++;
 677                 name = buf;
 678
 679                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 680                         continue;
 681
 682                 ginfo = news_group_info_new(name, first_num, last_num, type);
 683
 684                 if (!last)
 685                         last = list = g_slist_append(NULL, ginfo);
 686                 else {
 687                         last = g_slist_append(last, ginfo);
 688                         last = last->next;
 689                 }
 690         }
 691
 692         fclose(fp);
 693         g_free(filename);
 694
 695         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 696
 697         return list;
 698 }
 699
 700 void news_group_list_free(GSList *group_list)
 701 {
 702         GSList *cur;
 703
 704         if (!group_list) return;
 705
 706         for (cur = group_list; cur != NULL; cur = cur->next)
 707                 news_group_info_free((NewsGroupInfo *)cur->data);
 708         g_slist_free(group_list);
 709 }
 710
 711 void news_remove_group_list_cache(Folder *folder)
 712 {
 713         gchar *path, *filename;
 714
 715         cm_return_if_fail(folder != NULL);
 716         cm_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 717
 718         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 719         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 720         g_free(path);
 721
 722         if (is_file_exist(filename)) {
 723                 if (remove(filename) < 0)
 724                         FILE_OP_ERROR(filename, "remove");
 725         }
 726         g_free(filename);
 727 }
 728
 729 gint news_post(Folder *folder, const gchar *file)
 730 {
 731         gint ok;
 732         char *contents = file_read_to_str_no_recode(file);
 733         NewsSession *session;
 734
 735         cm_return_val_if_fail(folder != NULL, -1);
 736         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 737         cm_return_val_if_fail(contents != NULL, -1);
 738
 739         session = news_session_get(folder);
 740         if (!session)  {
 741                 g_free(contents);
 742                 return -1;
 743         }
 744
 745         ok = nntp_threaded_post(folder, contents, strlen(contents));
 746
 747         g_free(contents);
 748
 749         if (ok == NEWSNNTP_ERROR_STREAM) {
 750                 session_destroy(SESSION(session));
 751                 REMOTE_FOLDER(folder)->session = NULL;
 752         }
 753
 754         return (ok == NEWSNNTP_NO_ERROR ? 0 : -1);
 755 }
 756
 757 static gint news_get_article(Folder *folder, gint num, gchar *filename)
 758 {
 759         size_t len;
 760         char *result = NULL;
 761         int r;
 762
 763         r = nntp_threaded_article(folder, num, &result, &len);
 764
 765         if (r == NEWSNNTP_NO_ERROR) {
 766                 if (str_write_to_file(result, filename) < 0)
 767                         return -1;
 768                 g_free(result);
 769         }
 770
 771         return r;
 772 }
 773
 774 /**
 775  * news_select_group:
 776  * @session: Active NNTP session.
 777  * @group: Newsgroup name.
 778  * @num: Estimated number of articles.
 779  * @first: First article number.
 780  * @last: Last article number.
 781  *
 782  * Select newsgroup @group with the GROUP command if it is not already
 783  * selected in @session, or article numbers need to be returned.
 784  *
 785  * Return value: NNTP result code.
 786  **/
 787 static gint news_select_group(Folder *folder, const gchar *group,
 788                               gint *num, gint *first, gint *last)
 789 {
 790         gint ok;
 791         gint num_, first_, last_;
 792         struct newsnntp_group_info *info = NULL;
 793         NewsSession *session = NEWS_SESSION(news_session_get(folder));
 794
 795         cm_return_val_if_fail(session != NULL, -1);
 796
 797         if (!num || !first || !last) {
 798                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 799                         return NEWSNNTP_NO_ERROR;
 800                 num = &num_;
 801                 first = &first_;
 802                 last = &last_;
 803         }
 804
 805         g_free(session->group);
 806         session->group = NULL;
 807
 808         ok = nntp_threaded_group(folder, group, &info);
 809
 810         if (ok == NEWSNNTP_NO_ERROR && info) {
 811                 session->group = g_strdup(group);
 812                 *num = info->grp_first;
 813                 *first = info->grp_first;
 814                 *last = info->grp_last;
 815                 newsnntp_group_free(info);
 816         } else {
 817                 log_warning(LOG_PROTOCOL, _("couldn't select group: %s\n"), group);
 818         }
 819         return ok;
 820 }
 821
 822 static MsgInfo *news_parse_xover(struct newsnntp_xover_resp_item *item)
 823 {
 824         MsgInfo *msginfo;
 825
 826         /* set MsgInfo */
 827         msginfo = procmsg_msginfo_new();
 828         msginfo->msgnum = item->ovr_article;
 829         msginfo->size = item->ovr_size;
 830
 831         msginfo->date = g_strdup(item->ovr_date);
 832         msginfo->date_t = procheader_date_parse(NULL, item->ovr_date, 0);
 833
 834         msginfo->from = conv_unmime_header(item->ovr_author, NULL, TRUE);
 835         msginfo->fromname = procheader_get_fromname(msginfo->from);
 836
 837         msginfo->subject = conv_unmime_header(item->ovr_subject, NULL, TRUE);
 838
 839         remove_return(msginfo->from);
 840         remove_return(msginfo->fromname);
 841         remove_return(msginfo->subject);
 842
 843         if (item->ovr_message_id) {
 844                 gchar *tmp = g_strdup(item->ovr_message_id);
 845                 extract_parenthesis(tmp, '<', '>');
 846                 remove_space(tmp);
 847                 if (*tmp != '\0')
 848                         msginfo->msgid = g_strdup(tmp);
 849                 g_free(tmp);
 850         }
 851
 852         /* FIXME: this is a quick fix; references' meaning was changed
 853          * into having the actual list of references in the References: header.
 854          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 855          * their things properly. */
 856         if (item->ovr_references && *(item->ovr_references)) {
 857                 gchar **ref_tokens = g_strsplit(item->ovr_references, " ", -1);
 858                 guint i = 0;
 859                 char *tmp;
 860                 char *p;
 861                 while (ref_tokens[i]) {
 862                         gchar *cur_ref = ref_tokens[i];
 863                         msginfo->references = references_list_append(msginfo->references,
 864                                         cur_ref);
 865                         i++;
 866                 }
 867                 g_strfreev(ref_tokens);
 868
 869                 tmp = g_strdup(item->ovr_references);
 870                 eliminate_parenthesis(tmp, '(', ')');
 871                 if ((p = strrchr(tmp, '<')) != NULL) {
 872                         extract_parenthesis(p, '<', '>');
 873                         remove_space(p);
 874                         if (*p != '\0')
 875                                 msginfo->inreplyto = g_strdup(p);
 876                 }
 877                 g_free(tmp);
 878         }
 879
 880         return msginfo;
 881 }
 882
 883 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 884 {
 885         gchar * tmp;
 886         FILE * tmpfp;
 887         gchar buf[BUFFSIZE];
 888
 889         tmp = g_strdup_printf("%s%ccancel%p", get_tmp_dir(),
 890                               G_DIR_SEPARATOR, msginfo);
 891         if (tmp == NULL)
 892                 return -1;
 893
 894         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 895                 FILE_OP_ERROR(tmp, "fopen");
 896                 return -1;
 897         }
 898         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 899                 FILE_OP_ERROR(tmp, "chmod");
 900                 g_warning("can't change file mode\n");
 901         }
 902
 903         get_rfc822_date(buf, sizeof(buf));
 904         if (fprintf(tmpfp, "From: %s\r\n"
 905                        "Newsgroups: %s\r\n"
 906                        "Subject: cmsg cancel <%s>\r\n"
 907                        "Control: cancel <%s>\r\n"
 908                        "Approved: %s\r\n"
 909                        "X-Cancelled-by: %s\r\n"
 910                        "Date: %s\r\n"
 911                        "\r\n"
 912                        "removed with Claws Mail\r\n",
 913                        msginfo->from,
 914                        msginfo->newsgroups,
 915                        msginfo->msgid,
 916                        msginfo->msgid,
 917                        msginfo->from,
 918                        msginfo->from,
 919                        buf) < 0) {
 920                 FILE_OP_ERROR(tmp, "fprintf");
 921                 fclose(tmpfp);
 922                 claws_unlink(tmp);
 923                 g_free(tmp);
 924                 return -1;
 925         }
 926
 927         if (fclose(tmpfp) == EOF) {
 928                 FILE_OP_ERROR(tmp, "fclose");
 929                 claws_unlink(tmp);
 930                 g_free(tmp);
 931                 return -1;
 932         }
 933
 934         news_post(folder, tmp);
 935         remove(tmp);
 936
 937         g_free(tmp);
 938
 939         return 0;
 940 }
 941
 942 static gchar *news_folder_get_path(Folder *folder)
 943 {
 944         gchar *folder_path;
 945
 946         cm_return_val_if_fail(folder->account != NULL, NULL);
 947
 948         folder_path = g_strconcat(get_news_cache_dir(),
 949                                   G_DIR_SEPARATOR_S,
 950                                   folder->account->nntp_server,
 951                                   NULL);
 952         return folder_path;
 953 }
 954
 955 static gchar *news_item_get_path(Folder *folder, FolderItem *item)
 956 {
 957         gchar *folder_path, *path;
 958
 959         cm_return_val_if_fail(folder != NULL, NULL);
 960         cm_return_val_if_fail(item != NULL, NULL);
 961         folder_path = news_folder_get_path(folder);
 962
 963         cm_return_val_if_fail(folder_path != NULL, NULL);
 964         if (g_path_is_absolute(folder_path)) {
 965                 if (item->path)
 966                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 967                                            item->path, NULL);
 968                 else
 969                         path = g_strdup(folder_path);
 970         } else {
 971                 if (item->path)
 972                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 973                                            folder_path, G_DIR_SEPARATOR_S,
 974                                            item->path, NULL);
 975                 else
 976                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 977                                            folder_path, NULL);
 978         }
 979         g_free(folder_path);
 980 #ifdef G_OS_WIN32
 981         while (strchr(path, '/'))
 982                 *strchr(path, '/') = '\\';
 983 #endif
 984         return path;
 985 }
 986
 987 static gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
 988 {
 989         NewsSession *session;
 990         gint i, ok, num, first, last, nummsgs = 0;
 991         gchar *dir;
 992
 993         cm_return_val_if_fail(item != NULL, -1);
 994         cm_return_val_if_fail(item->folder != NULL, -1);
 995         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 996
 997         session = news_session_get(folder);
 998         cm_return_val_if_fail(session != NULL, -1);
 999
1000         *old_uids_valid = TRUE;
1001
1002         news_folder_lock(NEWS_FOLDER(item->folder));
1003
1004         ok = news_select_group(folder, item->path, &num, &first, &last);
1005         if (ok != NEWSNNTP_NO_ERROR) {
1006                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1007                 news_folder_unlock(NEWS_FOLDER(item->folder));
1008                 return -1;
1009         }
1010
1011         dir = news_folder_get_path(folder);
1012         if (num <= 0)
1013                 remove_all_numbered_files(dir);
1014         else if (last < first)
1015                 log_warning(LOG_PROTOCOL, _("invalid article range: %d - %d\n"),
1016                             first, last);
1017         else {
1018                 for (i = first; i <= last; i++) {
1019                         *msgnum_list = g_slist_prepend(*msgnum_list,
1020                                                        GINT_TO_POINTER(i));
1021                         nummsgs++;
1022                 }
1023                 debug_print("removing old messages from %d to %d in %s\n",
1024                             first, last, dir);
1025                 remove_numbered_files(dir, 1, first - 1);
1026         }
1027         g_free(dir);
1028         news_folder_unlock(NEWS_FOLDER(item->folder));
1029         return nummsgs;
1030 }
1031
1032 static void news_set_msg_flags(FolderItem *item, MsgInfo *msginfo)
1033 {
1034         msginfo->flags.tmp_flags = 0;
1035         if (item->folder->account->mark_crosspost_read && msginfo->msgid) {
1036                 if (item->folder->newsart &&
1037                     g_hash_table_lookup(item->folder->newsart, msginfo->msgid) != NULL) {
1038                         msginfo->flags.perm_flags = MSG_COLORLABEL_TO_FLAGS(item->folder->account->crosspost_col);
1039
1040                 } else {
1041                         if (!item->folder->newsart)
1042                                 item->folder->newsart = g_hash_table_new(g_str_hash, g_str_equal);
1043                         g_hash_table_insert(item->folder->newsart,
1044                                         g_strdup(msginfo->msgid), GINT_TO_POINTER(1));
1045                         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1046                 }
1047         } else {
1048                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1049         }
1050 }
1051
1052 static void news_get_extra_fields(NewsSession *session, FolderItem *item, GSList *msglist)
1053 {
1054         MsgInfo *msginfo = NULL;
1055         gint ok;
1056         GSList *cur;
1057         clist *hdrlist = NULL;
1058         clistiter *hdr;
1059         gint first = -1, last = -1;
1060         GHashTable *hash_table;
1061
1062         cm_return_if_fail(session != NULL);
1063         cm_return_if_fail(item != NULL);
1064         cm_return_if_fail(item->folder != NULL);
1065         cm_return_if_fail(FOLDER_CLASS(item->folder) == &news_class);
1066
1067         news_folder_lock(NEWS_FOLDER(item->folder));
1068
1069         hash_table = g_hash_table_new(g_direct_hash, g_direct_equal);
1070
1071         for (cur = msglist; cur; cur = cur->next) {
1072                 msginfo = (MsgInfo *)cur->data;
1073                 if (first == -1 || msginfo->msgnum < first)
1074                         first = msginfo->msgnum;
1075                 if (last == -1 || msginfo->msgnum > last)
1076                         last = msginfo->msgnum;
1077                 g_hash_table_insert(hash_table,
1078                                 GINT_TO_POINTER(msginfo->msgnum), msginfo);
1079         }
1080
1081 /* Newsgroups */
1082         ok = nntp_threaded_xhdr(item->folder, "newsgroups", first, last, &hdrlist);
1083
1084         if (ok != NEWSNNTP_NO_ERROR) {
1085                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1086                 if (ok == NEWSNNTP_ERROR_STREAM) {
1087                         session_destroy(SESSION(session));
1088                         REMOTE_FOLDER(item->folder)->session = NULL;
1089                 }
1090                 news_folder_unlock(NEWS_FOLDER(item->folder));
1091                 return;
1092         }
1093
1094         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1095                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1096                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1097                 if (msginfo) {
1098                         if (msginfo->newsgroups)
1099                                 g_free(msginfo->newsgroups);
1100                         msginfo->newsgroups = g_strdup(hdrval->hdr_value);
1101                 }
1102         }
1103         newsnntp_xhdr_free(hdrlist);
1104
1105 /* To */
1106         ok = nntp_threaded_xhdr(item->folder, "to", first, last, &hdrlist);
1107
1108         if (ok != NEWSNNTP_NO_ERROR) {
1109                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1110                 if (ok == NEWSNNTP_ERROR_STREAM) {
1111                         session_destroy(SESSION(session));
1112                         REMOTE_FOLDER(item->folder)->session = NULL;
1113                 }
1114                 news_folder_unlock(NEWS_FOLDER(item->folder));
1115                 return;
1116         }
1117
1118         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1119                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1120                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1121                 if (msginfo) {
1122                         if (msginfo->to)
1123                                 g_free(msginfo->to);
1124                         msginfo->to = g_strdup(hdrval->hdr_value);
1125                 }
1126         }
1127         newsnntp_xhdr_free(hdrlist);
1128
1129 /* Cc */
1130         ok = nntp_threaded_xhdr(item->folder, "cc", first, last, &hdrlist);
1131
1132         if (ok != NEWSNNTP_NO_ERROR) {
1133                 log_warning(LOG_PROTOCOL, _("couldn't get xhdr\n"));
1134                 if (ok == NEWSNNTP_ERROR_STREAM) {
1135                         session_destroy(SESSION(session));
1136                         REMOTE_FOLDER(item->folder)->session = NULL;
1137                 }
1138                 news_folder_unlock(NEWS_FOLDER(item->folder));
1139                 return;
1140         }
1141
1142         for (hdr = clist_begin(hdrlist); hdr; hdr = clist_next(hdr)) {
1143                 struct newsnntp_xhdr_resp_item *hdrval = clist_content(hdr);
1144                 msginfo = g_hash_table_lookup(hash_table, GINT_TO_POINTER(hdrval->hdr_article));
1145                 if (msginfo) {
1146                         if (msginfo->cc)
1147                                 g_free(msginfo->cc);
1148                         msginfo->cc = g_strdup(hdrval->hdr_value);
1149                 }
1150         }
1151         newsnntp_xhdr_free(hdrlist);
1152
1153
1154         g_hash_table_destroy(hash_table);
1155         news_folder_unlock(NEWS_FOLDER(item->folder));
1156 }
1157
1158 static GSList *news_get_msginfos_for_range(NewsSession *session, FolderItem *item, guint begin, guint end)
1159 {
1160         GSList *newlist = NULL;
1161         GSList *llast = NULL;
1162         MsgInfo *msginfo;
1163         gint ok;
1164         clist *msglist = NULL;
1165         clistiter *cur;
1166         cm_return_val_if_fail(session != NULL, NULL);
1167         cm_return_val_if_fail(item != NULL, NULL);
1168
1169         log_message(LOG_PROTOCOL, _("getting xover %d - %d in %s...\n"),
1170                     begin, end, item->path);
1171
1172         news_folder_lock(NEWS_FOLDER(item->folder));
1173
1174         ok = news_select_group(item->folder, item->path, NULL, NULL, NULL);
1175         if (ok != NEWSNNTP_NO_ERROR) {
1176                 log_warning(LOG_PROTOCOL, _("couldn't set group: %s\n"), item->path);
1177                 news_folder_unlock(NEWS_FOLDER(item->folder));
1178                 return NULL;
1179         }
1180
1181         ok = nntp_threaded_xover(item->folder, begin, end, NULL, &msglist);
1182
1183         if (ok != NEWSNNTP_NO_ERROR) {
1184                 log_warning(LOG_PROTOCOL, _("couldn't get xover\n"));
1185                 if (ok == NEWSNNTP_ERROR_STREAM) {
1186                         session_destroy(SESSION(session));
1187                         REMOTE_FOLDER(item->folder)->session = NULL;
1188                 }
1189                 news_folder_unlock(NEWS_FOLDER(item->folder));
1190                 return NULL;
1191         }
1192
1193         if (msglist) {
1194                 for (cur = clist_begin(msglist); cur; cur = clist_next(cur)) {
1195                         struct newsnntp_xover_resp_item *ritem = (struct newsnntp_xover_resp_item *)clist_content(cur);
1196                         msginfo = news_parse_xover(ritem);
1197
1198                         if (!msginfo) {
1199                                 log_warning(LOG_PROTOCOL, _("invalid xover line\n"));
1200                                 continue;
1201                         }
1202
1203                         msginfo->folder = item;
1204                         news_set_msg_flags(item, msginfo);
1205                         msginfo->flags.tmp_flags |= MSG_NEWS;
1206
1207                         if (!newlist)
1208                                 llast = newlist = g_slist_append(newlist, msginfo);
1209                         else {
1210                                 llast = g_slist_append(llast, msginfo);
1211                                 llast = llast->next;
1212                         }
1213                 }
1214                 newsnntp_xover_resp_list_free(msglist);
1215         }
1216
1217         news_folder_unlock(NEWS_FOLDER(item->folder));
1218
1219         session_set_access_time(SESSION(session));
1220
1221         news_get_extra_fields(session, item, newlist);
1222
1223         return newlist;
1224 }
1225
1226 static MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
1227 {
1228         GSList *msglist = NULL;
1229         NewsSession *session;
1230         MsgInfo *msginfo = NULL;
1231
1232         session = news_session_get(folder);
1233         cm_return_val_if_fail(session != NULL, NULL);
1234         cm_return_val_if_fail(item != NULL, NULL);
1235         cm_return_val_if_fail(item->folder != NULL, NULL);
1236         cm_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
1237
1238         msglist = news_get_msginfos_for_range(session, item, num, num);
1239
1240         if (msglist)
1241                 msginfo = msglist->data;
1242
1243         g_slist_free(msglist);
1244
1245         return msginfo;
1246 }
1247
1248 static GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1249 {
1250         NewsSession *session;
1251         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1252         guint first, last, next;
1253         guint tofetch, fetched;
1254
1255         cm_return_val_if_fail(folder != NULL, NULL);
1256         cm_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1257         cm_return_val_if_fail(msgnum_list != NULL, NULL);
1258         cm_return_val_if_fail(item != NULL, NULL);
1259
1260         session = news_session_get(folder);
1261         cm_return_val_if_fail(session != NULL, NULL);
1262
1263         tmp_msgnum_list = g_slist_copy(msgnum_list);
1264         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1265
1266         progressindicator_start(PROGRESS_TYPE_NETWORK);
1267         tofetch = g_slist_length(tmp_msgnum_list);
1268         fetched = 0;
1269
1270         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1271         last = first;
1272
1273         news_folder_lock(NEWS_FOLDER(item->folder));
1274
1275         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1276                 next = GPOINTER_TO_INT(elem->data);
1277                 if(next != (last + 1)) {
1278 /*                      session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1279                         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1280 */
1281                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1282                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1283                         fetched = last - first + 1;
1284                         first = next;
1285                 }
1286                 last = next;
1287         }
1288
1289         news_folder_unlock(NEWS_FOLDER(item->folder));
1290
1291 /*      session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1292         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1293 */
1294         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1295         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1296
1297         g_slist_free(tmp_msgnum_list);
1298
1299         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1300
1301         return msginfo_list;
1302 }
1303
1304 static gboolean news_scan_required(Folder *folder, FolderItem *item)
1305 {
1306         return TRUE;
1307 }
1308
1309 void news_synchronise(FolderItem *item, gint days)
1310 {
1311         news_gtk_synchronise(item, days);
1312 }
1313
1314 static gint news_rename_folder(Folder *folder, FolderItem *item,
1315                                 const gchar *name)
1316 {
1317         gchar *path;
1318
1319         cm_return_val_if_fail(folder != NULL, -1);
1320         cm_return_val_if_fail(item != NULL, -1);
1321         cm_return_val_if_fail(item->path != NULL, -1);
1322         cm_return_val_if_fail(name != NULL, -1);
1323
1324         path = folder_item_get_path(item);
1325         if (!is_dir_exist(path))
1326                 make_dir_hier(path);
1327
1328         g_free(item->name);
1329         item->name = g_strdup(name);
1330
1331         return 0;
1332 }
1333
1334 static gint news_remove_folder(Folder *folder, FolderItem *item)
1335 {
1336         gchar *path;
1337
1338         cm_return_val_if_fail(folder != NULL, -1);
1339         cm_return_val_if_fail(item != NULL, -1);
1340         cm_return_val_if_fail(item->path != NULL, -1);
1341
1342         path = folder_item_get_path(item);
1343         if (remove_dir_recursive(path) < 0) {
1344                 g_warning("can't remove directory `%s'\n", path);
1345                 g_free(path);
1346                 return -1;
1347         }
1348
1349         g_free(path);
1350         folder_item_remove(item);
1351         return 0;
1352 }
1353
1354 #else
1355 #include <glib.h>
1356 #include <glib/gi18n.h>
1357 #include <gtk/gtk.h>
1358 #include "folder.h"
1359 #include "alertpanel.h"
1360
1361 static FolderClass news_class;
1362
1363 static void warn_etpan(void)
1364 {
1365         static gboolean missing_news_warning = TRUE;
1366         if (missing_news_warning) {
1367                 missing_news_warning = FALSE;
1368                 alertpanel_error(
1369                         _("You have one or more News accounts "
1370                           "defined. However this version of "
1371                           "Claws Mail has been built without "
1372                           "News support; your News account(s) are "
1373                           "disabled.\n\n"
1374                           "You probably need to "
1375                           "install libetpan and recompile "
1376                           "Claws Mail."));
1377         }
1378 }
1379 static Folder *news_folder_new(const gchar *name, const gchar *path)
1380 {
1381         warn_etpan();
1382         return NULL;
1383 }
1384 void news_group_list_free(GSList *group_list)
1385 {
1386         warn_etpan();
1387 }
1388 void news_remove_group_list_cache(Folder *folder)
1389 {
1390         warn_etpan();
1391 }
1392 int news_folder_locked(Folder *folder)
1393 {
1394         warn_etpan();
1395         return 0;
1396 }
1397 gint news_post(Folder *folder, const gchar *file)
1398 {
1399         warn_etpan();
1400         return -1;
1401 }
1402
1403 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
1404 {
1405         warn_etpan();
1406         return -1;
1407 }
1408
1409 GSList *news_get_group_list(Folder *folder)
1410 {
1411         warn_etpan();
1412         return NULL;
1413 }
1414
1415
1416 FolderClass *news_get_class(void)
1417 {
1418         if (news_class.idstr == NULL) {
1419                 news_class.type = F_NEWS;
1420                 news_class.idstr = "news";
1421                 news_class.uistr = "News";
1422
1423                 /* Folder functions */
1424                 news_class.new_folder = news_folder_new;
1425         };
1426
1427         return &news_class;
1428 }
1429
1430
1431 #endif