src/news.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 <glib/gi18n.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <stdlib.h>
  31 #include <dirent.h>
  32 #include <unistd.h>
  33 #include <time.h>
  34
  35 #include "news.h"
  36 #include "news_gtk.h"
  37 #include "nntp.h"
  38 #include "socket.h"
  39 #include "recv.h"
  40 #include "procmsg.h"
  41 #include "procheader.h"
  42 #include "folder.h"
  43 #include "session.h"
  44 #include "statusbar.h"
  45 #include "codeconv.h"
  46 #include "utils.h"
  47 #include "prefs_common.h"
  48 #include "prefs_account.h"
  49 #include "inputdialog.h"
  50 #include "log.h"
  51 #include "progressindicator.h"
  52 #include "remotefolder.h"
  53 #include "alertpanel.h"
  54 #include "inc.h"
  55
  56 #if USE_OPENSSL
  57 #  include "ssl.h"
  58 #endif
  59
  60 #define NNTP_PORT       119
  61 #if USE_OPENSSL
  62 #define NNTPS_PORT      563
  63 #endif
  64
  65 typedef struct _NewsFolder      NewsFolder;
  66
  67 #define NEWS_FOLDER(obj)        ((NewsFolder *)obj)
  68
  69 struct _NewsFolder
  70 {
  71         RemoteFolder rfolder;
  72
  73         gboolean use_auth;
  74         gboolean lock_count;
  75 };
  76
  77 static void news_folder_init             (Folder        *folder,
  78                                           const gchar   *name,
  79                                           const gchar   *path);
  80
  81 static Folder   *news_folder_new        (const gchar    *name,
  82                                          const gchar    *folder);
  83 static void      news_folder_destroy    (Folder         *folder);
  84
  85 static gchar *news_fetch_msg            (Folder         *folder,
  86                                          FolderItem     *item,
  87                                          gint            num);
  88
  89
  90 #if USE_OPENSSL
  91 static Session *news_session_new         (const gchar   *server,
  92                                           gushort        port,
  93                                           const gchar   *userid,
  94                                           const gchar   *passwd,
  95                                           SSLType        ssl_type);
  96 #else
  97 static Session *news_session_new         (const gchar   *server,
  98                                           gushort        port,
  99                                           const gchar   *userid,
 100                                           const gchar   *passwd);
 101 #endif
 102
 103 static gint news_get_article_cmd         (NNTPSession   *session,
 104                                           const gchar   *cmd,
 105                                           gint           num,
 106                                           gchar         *filename);
 107 static gint news_get_article             (NNTPSession   *session,
 108                                           gint           num,
 109                                           gchar         *filename);
 110
 111 static gint news_select_group            (NNTPSession   *session,
 112                                           const gchar   *group,
 113                                           gint          *num,
 114                                           gint          *first,
 115                                           gint          *last);
 116 static MsgInfo *news_parse_xover         (const gchar   *xover_str);
 117 static gchar *news_parse_xhdr            (const gchar   *xhdr_str,
 118                                           MsgInfo       *msginfo);
 119 gint news_get_num_list                   (Folder        *folder,
 120                                           FolderItem    *item,
 121                                           GSList       **list,
 122                                           gboolean      *old_uids_valid);
 123 MsgInfo *news_get_msginfo                (Folder        *folder,
 124                                           FolderItem    *item,
 125                                           gint           num);
 126 GSList *news_get_msginfos                (Folder        *folder,
 127                                           FolderItem    *item,
 128                                           GSList        *msgnum_list);
 129 gboolean news_scan_required              (Folder        *folder,
 130                                           FolderItem    *item);
 131
 132 gint news_post_stream                    (Folder        *folder,
 133                                           FILE          *fp);
 134 static gchar *news_folder_get_path       (Folder        *folder);
 135 gchar *news_item_get_path                (Folder        *folder,
 136                                           FolderItem    *item);
 137 static void news_synchronise             (FolderItem    *item);
 138 static int news_remove_msg               (Folder        *folder,
 139                                           FolderItem    *item,
 140                                           gint           msgnum);
 141 static gint news_remove_folder           (Folder        *folder,
 142                                           FolderItem    *item);
 143 static FolderClass news_class;
 144
 145 FolderClass *news_get_class(void)
 146 {
 147         if (news_class.idstr == NULL) {
 148                 news_class.type = F_NEWS;
 149                 news_class.idstr = "news";
 150                 news_class.uistr = "News";
 151
 152                 /* Folder functions */
 153                 news_class.new_folder = news_folder_new;
 154                 news_class.destroy_folder = news_folder_destroy;
 155
 156                 /* FolderItem functions */
 157                 news_class.item_get_path = news_item_get_path;
 158                 news_class.get_num_list = news_get_num_list;
 159                 news_class.scan_required = news_scan_required;
 160                 news_class.remove_folder = news_remove_folder;
 161
 162                 /* Message functions */
 163                 news_class.get_msginfo = news_get_msginfo;
 164                 news_class.get_msginfos = news_get_msginfos;
 165                 news_class.fetch_msg = news_fetch_msg;
 166                 news_class.synchronise = news_synchronise;
 167                 news_class.remove_msg = news_remove_msg;
 168         };
 169
 170         return &news_class;
 171 }
 172
 173 static int news_remove_msg               (Folder        *folder,
 174                                           FolderItem    *item,
 175                                           gint           msgnum)
 176 {
 177         gchar *path, *filename;
 178         NNTPSession *session;
 179         gint ok;
 180
 181         g_return_val_if_fail(folder != NULL, NULL);
 182         g_return_val_if_fail(item != NULL, NULL);
 183
 184         path = folder_item_get_path(item);
 185         if (!is_dir_exist(path))
 186                 make_dir_hier(path);
 187
 188         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(msgnum), NULL);
 189         g_free(path);
 190         g_unlink(filename);
 191         g_free(filename);
 192         return 0;
 193 }
 194
 195 static void news_folder_lock(NewsFolder *folder)
 196 {
 197         folder->lock_count++;
 198 }
 199
 200 static void news_folder_unlock(NewsFolder *folder)
 201 {
 202         if (folder->lock_count > 0)
 203                 folder->lock_count--;
 204 }
 205
 206 int news_folder_locked(Folder *folder)
 207 {
 208         if (folder == NULL)
 209                 return 0;
 210
 211         return NEWS_FOLDER(folder)->lock_count;
 212 }
 213
 214 static Folder *news_folder_new(const gchar *name, const gchar *path)
 215 {
 216         Folder *folder;
 217
 218         folder = (Folder *)g_new0(NewsFolder, 1);
 219         folder->klass = &news_class;
 220         news_folder_init(folder, name, path);
 221
 222         return folder;
 223 }
 224
 225 static void news_folder_destroy(Folder *folder)
 226 {
 227         gchar *dir;
 228
 229         dir = news_folder_get_path(folder);
 230         if (is_dir_exist(dir))
 231                 remove_dir_recursive(dir);
 232         g_free(dir);
 233
 234         folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 235 }
 236
 237 static void news_folder_init(Folder *folder, const gchar *name,
 238                              const gchar *path)
 239 {
 240         folder_remote_folder_init(folder, name, path);
 241 }
 242
 243 #if USE_OPENSSL
 244 static Session *news_session_new(const gchar *server, gushort port,
 245                                  const gchar *userid, const gchar *passwd,
 246                                  SSLType ssl_type)
 247 #else
 248 static Session *news_session_new(const gchar *server, gushort port,
 249                                  const gchar *userid, const gchar *passwd)
 250 #endif
 251 {
 252         gchar buf[NNTPBUFSIZE];
 253         Session *session;
 254
 255         g_return_val_if_fail(server != NULL, NULL);
 256
 257         log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
 258
 259 #if USE_OPENSSL
 260         session = nntp_session_new(server, port, buf, userid, passwd, ssl_type);
 261 #else
 262         session = nntp_session_new(server, port, buf, userid, passwd);
 263 #endif
 264
 265         return session;
 266 }
 267
 268 static Session *news_session_new_for_folder(Folder *folder)
 269 {
 270         Session *session;
 271         PrefsAccount *ac;
 272         const gchar *userid = NULL;
 273         gchar *passwd = NULL;
 274         gushort port;
 275         gchar buf[NNTPBUFSIZE];
 276
 277         g_return_val_if_fail(folder != NULL, NULL);
 278         g_return_val_if_fail(folder->account != NULL, NULL);
 279
 280         ac = folder->account;
 281         if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
 282                 userid = ac->userid;
 283                 if (ac->passwd && ac->passwd[0])
 284                         passwd = g_strdup(ac->passwd);
 285                 else
 286                         passwd = input_dialog_query_password(ac->nntp_server,
 287                                                              userid);
 288         }
 289
 290 #if USE_OPENSSL
 291         port = ac->set_nntpport ? ac->nntpport
 292                 : ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
 293         session = news_session_new(ac->nntp_server, port, userid, passwd,
 294                                    ac->ssl_nntp);
 295 #else
 296         if (ac->ssl_nntp != SSL_NONE) {
 297                 if (alertpanel_full(_("Insecure connection"),
 298                         _("This connection is configured to be secured "
 299                           "using SSL, but SSL is not available in this "
 300                           "build of Sylpheed-Claws. \n\n"
 301                           "Do you want to continue connecting to this "
 302                           "server? The communication would not be "
 303                           "secure."),
 304                           GTK_STOCK_CANCEL, _("Con_tinue connecting"),
 305                           NULL, FALSE, NULL, ALERT_WARNING,
 306                           G_ALERTDEFAULT) != G_ALERTALTERNATE)
 307                         return NULL;
 308         }
 309         port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
 310         session = news_session_new(ac->nntp_server, port, userid, passwd);
 311 #endif
 312         if ((session != NULL) && ac->use_nntp_auth && ac->use_nntp_auth_onconnect)
 313                 nntp_forceauth(NNTP_SESSION(session), buf, userid, passwd);
 314
 315         g_free(passwd);
 316
 317         return session;
 318 }
 319
 320 static NNTPSession *news_session_get(Folder *folder)
 321 {
 322         RemoteFolder *rfolder = REMOTE_FOLDER(folder);
 323
 324         g_return_val_if_fail(folder != NULL, NULL);
 325         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 326         g_return_val_if_fail(folder->account != NULL, NULL);
 327
 328         if (prefs_common.work_offline &&
 329             !inc_offline_should_override(
 330                 _("Sylpheed-Claws needs network access in order "
 331                   "to access the News server."))) {
 332                 return NULL;
 333         }
 334
 335         if (!rfolder->session) {
 336                 rfolder->session = news_session_new_for_folder(folder);
 337                 return NNTP_SESSION(rfolder->session);
 338         }
 339
 340         if (time(NULL) - rfolder->session->last_access_time <
 341                 SESSION_TIMEOUT_INTERVAL) {
 342                 return NNTP_SESSION(rfolder->session);
 343         }
 344
 345         if (nntp_mode(NNTP_SESSION(rfolder->session), FALSE)
 346             != NN_SUCCESS) {
 347                 log_warning(_("NNTP connection to %s:%d has been"
 348                               " disconnected. Reconnecting...\n"),
 349                             folder->account->nntp_server,
 350                             folder->account->set_nntpport ?
 351                             folder->account->nntpport : NNTP_PORT);
 352                 session_destroy(rfolder->session);
 353                 rfolder->session = news_session_new_for_folder(folder);
 354         }
 355
 356         if (rfolder->session)
 357                 session_set_access_time(rfolder->session);
 358
 359         return NNTP_SESSION(rfolder->session);
 360 }
 361
 362 static gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
 363 {
 364         gchar *path, *filename;
 365         NNTPSession *session;
 366         gint ok;
 367
 368         g_return_val_if_fail(folder != NULL, NULL);
 369         g_return_val_if_fail(item != NULL, NULL);
 370
 371         path = folder_item_get_path(item);
 372         if (!is_dir_exist(path))
 373                 make_dir_hier(path);
 374         filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 375         g_free(path);
 376
 377         if (is_file_exist(filename)) {
 378                 debug_print("article %d has been already cached.\n", num);
 379                 return filename;
 380         }
 381
 382         session = news_session_get(folder);
 383         if (!session) {
 384                 g_free(filename);
 385                 return NULL;
 386         }
 387
 388         ok = news_select_group(session, item->path, NULL, NULL, NULL);
 389         if (ok != NN_SUCCESS) {
 390                 if (ok == NN_SOCKET) {
 391                         session_destroy(SESSION(session));
 392                         REMOTE_FOLDER(folder)->session = NULL;
 393                 }
 394                 g_free(filename);
 395                 return NULL;
 396         }
 397
 398         debug_print("getting article %d...\n", num);
 399         ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
 400                               num, filename);
 401         if (ok != NN_SUCCESS) {
 402                 g_warning("can't read article %d\n", num);
 403                 if (ok == NN_SOCKET) {
 404                         session_destroy(SESSION(session));
 405                         REMOTE_FOLDER(folder)->session = NULL;
 406                 }
 407                 g_free(filename);
 408                 return NULL;
 409         }
 410         GTK_EVENTS_FLUSH();
 411         return filename;
 412 }
 413
 414 static NewsGroupInfo *news_group_info_new(const gchar *name,
 415                                           gint first, gint last, gchar type)
 416 {
 417         NewsGroupInfo *ginfo;
 418
 419         ginfo = g_new(NewsGroupInfo, 1);
 420         ginfo->name = g_strdup(name);
 421         ginfo->first = first;
 422         ginfo->last = last;
 423         ginfo->type = type;
 424
 425         return ginfo;
 426 }
 427
 428 static void news_group_info_free(NewsGroupInfo *ginfo)
 429 {
 430         g_free(ginfo->name);
 431         g_free(ginfo);
 432 }
 433
 434 static gint news_group_info_compare(NewsGroupInfo *ginfo1,
 435                                     NewsGroupInfo *ginfo2)
 436 {
 437         return g_ascii_strcasecmp(ginfo1->name, ginfo2->name);
 438 }
 439
 440 GSList *news_get_group_list(Folder *folder)
 441 {
 442         gchar *path, *filename;
 443         FILE *fp;
 444         GSList *list = NULL;
 445         GSList *last = NULL;
 446         gchar buf[NNTPBUFSIZE];
 447
 448         g_return_val_if_fail(folder != NULL, NULL);
 449         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
 450
 451         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 452         if (!is_dir_exist(path))
 453                 make_dir_hier(path);
 454         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 455         g_free(path);
 456
 457         if ((fp = g_fopen(filename, "rb")) == NULL) {
 458                 NNTPSession *session;
 459                 gint ok;
 460
 461                 session = news_session_get(folder);
 462                 if (!session) {
 463                         g_free(filename);
 464                         return NULL;
 465                 }
 466
 467                 ok = nntp_list(session);
 468                 if (ok != NN_SUCCESS) {
 469                         if (ok == NN_SOCKET) {
 470                                 session_destroy(SESSION(session));
 471                                 REMOTE_FOLDER(folder)->session = NULL;
 472                         }
 473                         g_free(filename);
 474                         return NULL;
 475                 }
 476                 if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
 477                         log_warning(_("can't retrieve newsgroup list\n"));
 478                         session_destroy(SESSION(session));
 479                         REMOTE_FOLDER(folder)->session = NULL;
 480                         g_free(filename);
 481                         return NULL;
 482                 }
 483
 484                 if ((fp = g_fopen(filename, "rb")) == NULL) {
 485                         FILE_OP_ERROR(filename, "fopen");
 486                         g_free(filename);
 487                         return NULL;
 488                 }
 489         }
 490
 491         while (fgets(buf, sizeof(buf), fp) != NULL) {
 492                 gchar *p = buf;
 493                 gchar *name;
 494                 gint last_num;
 495                 gint first_num;
 496                 gchar type;
 497                 NewsGroupInfo *ginfo;
 498
 499                 p = strchr(p, ' ');
 500                 if (!p) continue;
 501                 *p = '\0';
 502                 p++;
 503                 name = buf;
 504
 505                 if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
 506                         continue;
 507
 508                 ginfo = news_group_info_new(name, first_num, last_num, type);
 509
 510                 if (!last)
 511                         last = list = g_slist_append(NULL, ginfo);
 512                 else {
 513                         last = g_slist_append(last, ginfo);
 514                         last = last->next;
 515                 }
 516         }
 517
 518         fclose(fp);
 519         g_free(filename);
 520
 521         list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
 522
 523         return list;
 524 }
 525
 526 void news_group_list_free(GSList *group_list)
 527 {
 528         GSList *cur;
 529
 530         if (!group_list) return;
 531
 532         for (cur = group_list; cur != NULL; cur = cur->next)
 533                 news_group_info_free((NewsGroupInfo *)cur->data);
 534         g_slist_free(group_list);
 535 }
 536
 537 void news_remove_group_list_cache(Folder *folder)
 538 {
 539         gchar *path, *filename;
 540
 541         g_return_if_fail(folder != NULL);
 542         g_return_if_fail(FOLDER_CLASS(folder) == &news_class);
 543
 544         path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
 545         filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
 546         g_free(path);
 547
 548         if (is_file_exist(filename)) {
 549                 if (remove(filename) < 0)
 550                         FILE_OP_ERROR(filename, "remove");
 551         }
 552         g_free(filename);
 553 }
 554
 555 gint news_post(Folder *folder, const gchar *file)
 556 {
 557         FILE *fp;
 558         gint ok;
 559
 560         g_return_val_if_fail(folder != NULL, -1);
 561         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 562         g_return_val_if_fail(file != NULL, -1);
 563
 564         if ((fp = g_fopen(file, "rb")) == NULL) {
 565                 FILE_OP_ERROR(file, "fopen");
 566                 return -1;
 567         }
 568
 569         ok = news_post_stream(folder, fp);
 570
 571         fclose(fp);
 572
 573         return ok;
 574 }
 575
 576 gint news_post_stream(Folder *folder, FILE *fp)
 577 {
 578         NNTPSession *session;
 579         gint ok;
 580
 581         g_return_val_if_fail(folder != NULL, -1);
 582         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 583         g_return_val_if_fail(fp != NULL, -1);
 584
 585         session = news_session_get(folder);
 586         if (!session) return -1;
 587
 588         ok = nntp_post(session, fp);
 589         if (ok != NN_SUCCESS) {
 590                 log_warning(_("can't post article.\n"));
 591                 if (ok == NN_SOCKET) {
 592                         session_destroy(SESSION(session));
 593                         REMOTE_FOLDER(folder)->session = NULL;
 594                 }
 595                 return -1;
 596         }
 597
 598         return 0;
 599 }
 600
 601 static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
 602                                  gint num, gchar *filename)
 603 {
 604         gchar *msgid;
 605         gint ok;
 606
 607         ok = nntp_get_article(session, cmd, num, &msgid);
 608         if (ok != NN_SUCCESS)
 609                 return ok;
 610
 611         debug_print("Message-ID = %s, num = %d\n", msgid, num);
 612         g_free(msgid);
 613
 614         ok = recv_write_to_file(SESSION(session)->sock, filename);
 615         if (ok < 0) {
 616                 log_warning(_("can't retrieve article %d\n"), num);
 617                 if (ok == -2)
 618                         return NN_SOCKET;
 619                 else
 620                         return NN_IOERR;
 621         }
 622
 623         return NN_SUCCESS;
 624 }
 625
 626 static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
 627 {
 628         return news_get_article_cmd(session, "ARTICLE", num, filename);
 629 }
 630
 631 /**
 632  * news_select_group:
 633  * @session: Active NNTP session.
 634  * @group: Newsgroup name.
 635  * @num: Estimated number of articles.
 636  * @first: First article number.
 637  * @last: Last article number.
 638  *
 639  * Select newsgroup @group with the GROUP command if it is not already
 640  * selected in @session, or article numbers need to be returned.
 641  *
 642  * Return value: NNTP result code.
 643  **/
 644 static gint news_select_group(NNTPSession *session, const gchar *group,
 645                               gint *num, gint *first, gint *last)
 646 {
 647         gint ok;
 648         gint num_, first_, last_;
 649
 650         if (!num || !first || !last) {
 651                 if (session->group && g_ascii_strcasecmp(session->group, group) == 0)
 652                         return NN_SUCCESS;
 653                 num = &num_;
 654                 first = &first_;
 655                 last = &last_;
 656         }
 657
 658         g_free(session->group);
 659         session->group = NULL;
 660
 661         ok = nntp_group(session, group, num, first, last);
 662         if (ok == NN_SUCCESS)
 663                 session->group = g_strdup(group);
 664         else
 665                 log_warning(_("can't select group: %s\n"), group);
 666
 667         return ok;
 668 }
 669
 670 #define PARSE_ONE_PARAM(p, srcp) \
 671 { \
 672         p = strchr(srcp, '\t'); \
 673         if (!p) return NULL; \
 674         else \
 675                 *p++ = '\0'; \
 676 }
 677
 678 static MsgInfo *news_parse_xover(const gchar *xover_str)
 679 {
 680         MsgInfo *msginfo;
 681         gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp;
 682         gchar *p;
 683         gint num, size_int, line_int;
 684         gchar *xover_buf;
 685
 686         Xstrdup_a(xover_buf, xover_str, return NULL);
 687
 688         PARSE_ONE_PARAM(subject, xover_buf);
 689         PARSE_ONE_PARAM(sender, subject);
 690         PARSE_ONE_PARAM(date, sender);
 691         PARSE_ONE_PARAM(msgid, date);
 692         PARSE_ONE_PARAM(ref, msgid);
 693         PARSE_ONE_PARAM(size, ref);
 694         PARSE_ONE_PARAM(line, size);
 695         /*
 696          * PARSE_ONE_PARAM(xref, line);
 697          *
 698          * if we parse extra headers we should first examine the
 699          * LIST OVERVIEW.FMT response from the server. See
 700          * RFC2980 for details
 701          */
 702
 703         tmp = strchr(line, '\t');
 704         if (!tmp) tmp = strchr(line, '\r');
 705         if (!tmp) tmp = strchr(line, '\n');
 706         if (tmp) *tmp = '\0';
 707
 708         num = atoi(xover_str);
 709         size_int = atoi(size);
 710         line_int = atoi(line);
 711
 712         /* set MsgInfo */
 713         msginfo = procmsg_msginfo_new();
 714         msginfo->msgnum = num;
 715         msginfo->size = size_int;
 716
 717         msginfo->date = g_strdup(date);
 718         msginfo->date_t = procheader_date_parse(NULL, date, 0);
 719
 720         msginfo->from = conv_unmime_header(sender, NULL);
 721         msginfo->fromname = procheader_get_fromname(msginfo->from);
 722
 723         msginfo->subject = conv_unmime_header(subject, NULL);
 724
 725         remove_return(msginfo->from);
 726         remove_return(msginfo->fromname);
 727         remove_return(msginfo->subject);
 728
 729         if (msgid) {
 730                 extract_parenthesis(msgid, '<', '>');
 731                 remove_space(msgid);
 732                 if (*msgid != '\0')
 733                         msginfo->msgid = g_strdup(msgid);
 734         }
 735
 736         /* FIXME: this is a quick fix; references' meaning was changed
 737          * into having the actual list of references in the References: header.
 738          * We need a GSList here, so msginfo_free() and msginfo_copy() can do
 739          * their things properly. */
 740         if (ref && strlen(ref)) {
 741                 gchar **ref_tokens = g_strsplit(ref, " ", -1);
 742                 guint i = 0;
 743
 744                 while (ref_tokens[i]) {
 745                         gchar *cur_ref = ref_tokens[i];
 746                         msginfo->references = references_list_append(msginfo->references,
 747                                         cur_ref);
 748                         i++;
 749                 }
 750                 g_strfreev(ref_tokens);
 751
 752                 eliminate_parenthesis(ref, '(', ')');
 753                 if ((p = strrchr(ref, '<')) != NULL) {
 754                         extract_parenthesis(p, '<', '>');
 755                         remove_space(p);
 756                         if (*p != '\0')
 757                                 msginfo->inreplyto = g_strdup(p);
 758                 }
 759         }
 760
 761         return msginfo;
 762 }
 763
 764 static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
 765 {
 766         gchar *p;
 767         gchar *tmp;
 768         gint num;
 769
 770         p = strchr(xhdr_str, ' ');
 771         if (!p)
 772                 return NULL;
 773         else
 774                 p++;
 775
 776         num = atoi(xhdr_str);
 777         if (msginfo->msgnum != num) return NULL;
 778
 779         tmp = strchr(p, '\r');
 780         if (!tmp) tmp = strchr(p, '\n');
 781
 782         if (tmp)
 783                 return g_strndup(p, tmp - p);
 784         else
 785                 return g_strdup(p);
 786 }
 787
 788 gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
 789 {
 790         gchar * tmp;
 791         FILE * tmpfp;
 792         gchar buf[BUFFSIZE];
 793
 794         tmp = g_strdup_printf("%s%ctmp%d", g_get_tmp_dir(),
 795                               G_DIR_SEPARATOR, (gint)msginfo);
 796         if (tmp == NULL)
 797                 return -1;
 798
 799         if ((tmpfp = g_fopen(tmp, "wb")) == NULL) {
 800                 FILE_OP_ERROR(tmp, "fopen");
 801                 return -1;
 802         }
 803         if (change_file_mode_rw(tmpfp, tmp) < 0) {
 804                 FILE_OP_ERROR(tmp, "chmod");
 805                 g_warning("can't change file mode\n");
 806         }
 807
 808         fprintf(tmpfp, "From: %s\r\n", msginfo->from);
 809         fprintf(tmpfp, "Newsgroups: %s\r\n", msginfo->newsgroups);
 810         fprintf(tmpfp, "Subject: cmsg cancel <%s>\r\n", msginfo->msgid);
 811         fprintf(tmpfp, "Control: cancel <%s>\r\n", msginfo->msgid);
 812         fprintf(tmpfp, "Approved: %s\r\n", msginfo->from);
 813         fprintf(tmpfp, "X-Cancelled-by: %s\r\n", msginfo->from);
 814         get_rfc822_date(buf, sizeof(buf));
 815         fprintf(tmpfp, "Date: %s\r\n", buf);
 816         fprintf(tmpfp, "\r\n");
 817         fprintf(tmpfp, "removed with sylpheed\r\n");
 818
 819         fclose(tmpfp);
 820
 821         news_post(folder, tmp);
 822         remove(tmp);
 823
 824         g_free(tmp);
 825
 826         return 0;
 827 }
 828
 829 static gchar *news_folder_get_path(Folder *folder)
 830 {
 831         gchar *folder_path;
 832
 833         g_return_val_if_fail(folder->account != NULL, NULL);
 834
 835         folder_path = g_strconcat(get_news_cache_dir(),
 836                                   G_DIR_SEPARATOR_S,
 837                                   folder->account->nntp_server,
 838                                   NULL);
 839         return folder_path;
 840 }
 841
 842 gchar *news_item_get_path(Folder *folder, FolderItem *item)
 843 {
 844         gchar *folder_path, *path;
 845
 846         g_return_val_if_fail(folder != NULL, NULL);
 847         g_return_val_if_fail(item != NULL, NULL);
 848         folder_path = news_folder_get_path(folder);
 849
 850         g_return_val_if_fail(folder_path != NULL, NULL);
 851         if (folder_path[0] == G_DIR_SEPARATOR) {
 852                 if (item->path)
 853                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
 854                                            item->path, NULL);
 855                 else
 856                         path = g_strdup(folder_path);
 857         } else {
 858                 if (item->path)
 859                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 860                                            folder_path, G_DIR_SEPARATOR_S,
 861                                            item->path, NULL);
 862                 else
 863                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
 864                                            folder_path, NULL);
 865         }
 866         g_free(folder_path);
 867
 868         return path;
 869 }
 870
 871 gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list, gboolean *old_uids_valid)
 872 {
 873         NNTPSession *session;
 874         gint i, ok, num, first, last, nummsgs = 0;
 875         gchar *dir;
 876
 877         g_return_val_if_fail(item != NULL, -1);
 878         g_return_val_if_fail(item->folder != NULL, -1);
 879         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
 880
 881         session = news_session_get(folder);
 882         g_return_val_if_fail(session != NULL, -1);
 883
 884         *old_uids_valid = TRUE;
 885
 886         news_folder_lock(NEWS_FOLDER(item->folder));
 887
 888         ok = news_select_group(session, item->path, &num, &first, &last);
 889         if (ok != NN_SUCCESS) {
 890                 log_warning(_("can't set group: %s\n"), item->path);
 891                 news_folder_unlock(NEWS_FOLDER(item->folder));
 892                 return -1;
 893         }
 894
 895         dir = news_folder_get_path(folder);
 896         if (num <= 0)
 897                 remove_all_numbered_files(dir);
 898         else if (last < first)
 899                 log_warning(_("invalid article range: %d - %d\n"),
 900                             first, last);
 901         else {
 902                 for (i = first; i <= last; i++) {
 903                         *msgnum_list = g_slist_prepend(*msgnum_list,
 904                                                        GINT_TO_POINTER(i));
 905                         nummsgs++;
 906                 }
 907                 debug_print("removing old messages from %d to %d in %s\n",
 908                             first, last, dir);
 909                 remove_numbered_files(dir, 1, first - 1);
 910         }
 911         g_free(dir);
 912         news_folder_unlock(NEWS_FOLDER(item->folder));
 913         return nummsgs;
 914 }
 915
 916 #define READ_TO_LISTEND(hdr) \
 917         while (!(buf[0] == '.' && buf[1] == '\r')) { \
 918                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) { \
 919                         log_warning(_("error occurred while getting %s.\n"), hdr); \
 920                         return msginfo; \
 921                 } \
 922         }
 923
 924 MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
 925 {
 926         NNTPSession *session;
 927         MsgInfo *msginfo = NULL;
 928         gchar buf[NNTPBUFSIZE];
 929         gint ok;
 930
 931         session = news_session_get(folder);
 932         g_return_val_if_fail(session != NULL, NULL);
 933         g_return_val_if_fail(item != NULL, NULL);
 934         g_return_val_if_fail(item->folder != NULL, NULL);
 935         g_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
 936
 937         log_message(_("getting xover %d in %s...\n"),
 938                     num, item->path);
 939         ok = nntp_xover(session, num, num);
 940
 941         news_folder_lock(NEWS_FOLDER(item->folder));
 942
 943         if (ok != NN_SUCCESS) {
 944                 log_warning(_("can't get xover\n"));
 945                 if (ok == NN_SOCKET) {
 946                         session_destroy(SESSION(session));
 947                         REMOTE_FOLDER(item->folder)->session = NULL;
 948                 }
 949                 news_folder_unlock(NEWS_FOLDER(item->folder));
 950                 return NULL;
 951         }
 952
 953         if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 954                 log_warning(_("error occurred while getting xover.\n"));
 955                 news_folder_unlock(NEWS_FOLDER(item->folder));
 956                 return NULL;
 957         }
 958
 959         msginfo = news_parse_xover(buf);
 960         if (!msginfo) {
 961                 log_warning(_("invalid xover line: %s\n"), buf);
 962         }
 963
 964         READ_TO_LISTEND("xover");
 965
 966         if(!msginfo) {
 967                 news_folder_unlock(NEWS_FOLDER(item->folder));
 968                 return NULL;
 969         }
 970
 971         msginfo->folder = item;
 972         msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
 973         msginfo->flags.tmp_flags = MSG_NEWS;
 974         msginfo->newsgroups = g_strdup(item->path);
 975
 976         ok = nntp_xhdr(session, "to", num, num);
 977         if (ok != NN_SUCCESS) {
 978                 log_warning(_("can't get xhdr\n"));
 979                 if (ok == NN_SOCKET) {
 980                         session_destroy(SESSION(session));
 981                         REMOTE_FOLDER(item->folder)->session = NULL;
 982                 }
 983                 news_folder_unlock(NEWS_FOLDER(item->folder));
 984                 return msginfo;
 985         }
 986
 987         if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
 988                 log_warning(_("error occurred while getting xhdr.\n"));
 989                 news_folder_unlock(NEWS_FOLDER(item->folder));
 990                 return msginfo;
 991         }
 992
 993         msginfo->to = news_parse_xhdr(buf, msginfo);
 994
 995         READ_TO_LISTEND("xhdr (to)");
 996
 997         ok = nntp_xhdr(session, "cc", num, num);
 998         if (ok != NN_SUCCESS) {
 999                 log_warning(_("can't get xhdr\n"));
1000                 if (ok == NN_SOCKET) {
1001                         session_destroy(SESSION(session));
1002                         REMOTE_FOLDER(item->folder)->session = NULL;
1003                 }
1004                 news_folder_unlock(NEWS_FOLDER(item->folder));
1005                 return msginfo;
1006         }
1007
1008         if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
1009                 log_warning(_("error occurred while getting xhdr.\n"));
1010                 news_folder_unlock(NEWS_FOLDER(item->folder));
1011                 return msginfo;
1012         }
1013
1014         msginfo->cc = news_parse_xhdr(buf, msginfo);
1015
1016         READ_TO_LISTEND("xhdr (cc)");
1017         news_folder_unlock(NEWS_FOLDER(item->folder));
1018         return msginfo;
1019 }
1020
1021 static GSList *news_get_msginfos_for_range(NNTPSession *session, FolderItem *item, guint begin, guint end)
1022 {
1023         gchar buf[NNTPBUFSIZE];
1024         GSList *newlist = NULL;
1025         GSList *llast = NULL;
1026         MsgInfo *msginfo;
1027         guint count = 0, lines = (end - begin) + 2;
1028         gint ok;
1029
1030         g_return_val_if_fail(session != NULL, NULL);
1031         g_return_val_if_fail(item != NULL, NULL);
1032
1033         log_message(_("getting xover %d - %d in %s...\n"),
1034                     begin, end, item->path);
1035         ok = nntp_xover(session, begin, end);
1036         if (ok != NN_SUCCESS) {
1037                 log_warning(_("can't get xover\n"));
1038                 if (ok == NN_SOCKET) {
1039                         session_destroy(SESSION(session));
1040                         REMOTE_FOLDER(item->folder)->session = NULL;
1041                 }
1042                 return NULL;
1043         }
1044
1045         news_folder_lock(NEWS_FOLDER(item->folder));
1046
1047         for (;;) {
1048                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
1049                         log_warning(_("error occurred while getting xover.\n"));
1050                         news_folder_unlock(NEWS_FOLDER(item->folder));
1051                         return newlist;
1052                 }
1053                 count++;
1054                 progressindicator_set_percentage
1055                         (PROGRESS_TYPE_NETWORK,
1056                          session->fetch_base_percentage +
1057                          (((gfloat) count) / ((gfloat) lines)) * session->fetch_total_percentage);
1058
1059                 if (buf[0] == '.' && buf[1] == '\r') break;
1060
1061                 msginfo = news_parse_xover(buf);
1062                 if (!msginfo) {
1063                         log_warning(_("invalid xover line: %s\n"), buf);
1064                         continue;
1065                 }
1066
1067                 msginfo->folder = item;
1068                 msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
1069                 msginfo->flags.tmp_flags = MSG_NEWS;
1070                 msginfo->newsgroups = g_strdup(item->path);
1071
1072                 if (!newlist)
1073                         llast = newlist = g_slist_append(newlist, msginfo);
1074                 else {
1075                         llast = g_slist_append(llast, msginfo);
1076                         llast = llast->next;
1077                 }
1078         }
1079
1080         ok = nntp_xhdr(session, "to", begin, end);
1081         if (ok != NN_SUCCESS) {
1082                 log_warning(_("can't get xhdr\n"));
1083                 if (ok == NN_SOCKET) {
1084                         session_destroy(SESSION(session));
1085                         REMOTE_FOLDER(item->folder)->session = NULL;
1086                 }
1087                 news_folder_unlock(NEWS_FOLDER(item->folder));
1088                 return newlist;
1089         }
1090
1091         llast = newlist;
1092
1093         for (;;) {
1094                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
1095                         log_warning(_("error occurred while getting xhdr.\n"));
1096                         news_folder_unlock(NEWS_FOLDER(item->folder));
1097                         return newlist;
1098                 }
1099
1100                 if (buf[0] == '.' && buf[1] == '\r') break;
1101                 if (!llast) {
1102                         g_warning("llast == NULL\n");
1103                         continue;
1104                 }
1105
1106                 msginfo = (MsgInfo *)llast->data;
1107                 msginfo->to = news_parse_xhdr(buf, msginfo);
1108
1109                 llast = llast->next;
1110         }
1111
1112         ok = nntp_xhdr(session, "cc", begin, end);
1113         if (ok != NN_SUCCESS) {
1114                 log_warning(_("can't get xhdr\n"));
1115                 if (ok == NN_SOCKET) {
1116                         session_destroy(SESSION(session));
1117                         REMOTE_FOLDER(item->folder)->session = NULL;
1118                 }
1119                 news_folder_unlock(NEWS_FOLDER(item->folder));
1120                 return newlist;
1121         }
1122
1123         llast = newlist;
1124
1125         for (;;) {
1126                 if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
1127                         log_warning(_("error occurred while getting xhdr.\n"));
1128                         news_folder_unlock(NEWS_FOLDER(item->folder));
1129                         return newlist;
1130                 }
1131
1132                 if (buf[0] == '.' && buf[1] == '\r') break;
1133                 if (!llast) {
1134                         g_warning("llast == NULL\n");
1135                         continue;
1136                 }
1137
1138                 msginfo = (MsgInfo *)llast->data;
1139                 msginfo->cc = news_parse_xhdr(buf, msginfo);
1140
1141                 llast = llast->next;
1142         }
1143         news_folder_unlock(NEWS_FOLDER(item->folder));
1144
1145         session_set_access_time(SESSION(session));
1146
1147         return newlist;
1148 }
1149
1150 GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
1151 {
1152         NNTPSession *session;
1153         GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
1154         guint first, last, next;
1155         guint tofetch, fetched;
1156
1157         g_return_val_if_fail(folder != NULL, NULL);
1158         g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
1159         g_return_val_if_fail(msgnum_list != NULL, NULL);
1160         g_return_val_if_fail(item != NULL, NULL);
1161
1162         session = news_session_get(folder);
1163         g_return_val_if_fail(session != NULL, NULL);
1164
1165         tmp_msgnum_list = g_slist_copy(msgnum_list);
1166         tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, g_int_compare);
1167
1168         progressindicator_start(PROGRESS_TYPE_NETWORK);
1169         tofetch = g_slist_length(tmp_msgnum_list);
1170         fetched = 0;
1171
1172         first = GPOINTER_TO_INT(tmp_msgnum_list->data);
1173         last = first;
1174
1175         news_folder_lock(NEWS_FOLDER(item->folder));
1176
1177         for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
1178                 next = GPOINTER_TO_INT(elem->data);
1179                 if(next != (last + 1)) {
1180                         session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1181                         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1182                         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1183                         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1184                         fetched = last - first + 1;
1185                         first = next;
1186                 }
1187                 last = next;
1188         }
1189
1190         news_folder_unlock(NEWS_FOLDER(item->folder));
1191
1192         session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
1193         session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
1194         tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
1195         msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
1196
1197         g_slist_free(tmp_msgnum_list);
1198
1199         progressindicator_stop(PROGRESS_TYPE_NETWORK);
1200
1201         return msginfo_list;
1202 }
1203
1204 gboolean news_scan_required(Folder *folder, FolderItem *item)
1205 {
1206         return TRUE;
1207 }
1208
1209 void news_synchronise(FolderItem *item)
1210 {
1211         news_gtk_synchronise(item);
1212 }
1213
1214 static gint news_remove_folder(Folder *folder, FolderItem *item)
1215 {
1216         gchar *path;
1217
1218         g_return_val_if_fail(folder != NULL, -1);
1219         g_return_val_if_fail(item != NULL, -1);
1220         g_return_val_if_fail(item->path != NULL, -1);
1221
1222         path = folder_item_get_path(item);
1223         if (remove_dir_recursive(path) < 0) {
1224                 g_warning("can't remove directory `%s'\n", path);
1225                 g_free(path);
1226                 return -1;
1227         }
1228
1229         g_free(path);
1230         folder_item_remove(item);
1231         return 0;
1232 }