src/plugins/rssyl/rssyl.c

   1 /*
   2  * Claws-Mail-- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2004 Hiroyuki Yamamoto
   4  * This file (C) 2005 Andrej Kacian <andrej@kacian.sk>
   5  *
   6  * - s-c folderclass callback handler functions
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #  include "config.h"
  25 #endif
  26
  27 /* Global includes */
  28 #include <glib.h>
  29 #include <glib/gi18n.h>
  30 #include <curl/curl.h>
  31
  32 /* Claws Mail includes */
  33 #include <folder.h>
  34 #include <procmsg.h>
  35 #include <localfolder.h>
  36 #include <common/utils.h>
  37 #include <main.h>
  38 #include <mh.h>
  39 #include <xml.h>
  40 #include <toolbar.h>
  41 #include <prefs_toolbar.h>
  42 #include <utils.h>
  43
  44 /* Local includes */
  45 #include "libfeed/feeditem.h"
  46 #include "rssyl.h"
  47 #include "rssyl_deleted.h"
  48 #include "rssyl_gtk.h"
  49 #include "rssyl_feed.h"
  50 #include "rssyl_prefs.h"
  51 #include "rssyl_update_feed.h"
  52 #include "rssyl_update_format.h"
  53 #include "opml_import.h"
  54 #include "opml_export.h"
  55 #include "strutils.h"
  56
  57 FolderClass rssyl_class;
  58
  59 static gint rssyl_create_tree(Folder *folder);
  60 static gint rssyl_scan_tree(Folder *folder);
  61
  62 static gboolean existing_tree_found = FALSE;
  63
  64 static void rssyl_init_read_func(FolderItem *item, gpointer data)
  65 {
  66         RFolderItem *ritem = (RFolderItem *)item;
  67         RPrefs *rsprefs = NULL;
  68
  69         if( !IS_RSSYL_FOLDER_ITEM(item) )
  70                 return;
  71
  72         existing_tree_found = TRUE;
  73
  74         /* Don't do anything if we're on root of our folder tree or on
  75          * a regular folder (no feed) */
  76         if( folder_item_parent(item) == NULL || ritem->url == NULL )
  77                 return;
  78
  79         ritem->refresh_id = 0;
  80
  81         /* Start automatic refresh timer, if necessary */
  82         if( ritem->default_refresh_interval ) {
  83                 rsprefs = rssyl_prefs_get();
  84                 if( !rsprefs->refresh_enabled )
  85                         return;
  86
  87                 ritem->refresh_interval = rsprefs->refresh;
  88         }
  89
  90         /* Start the timer, if determined interval is >0 */
  91         if( ritem->refresh_interval > 0 )
  92                 rssyl_feed_start_refresh_timeout(ritem);
  93 }
  94
  95 static void rssyl_make_rc_dir(void)
  96 {
  97         gchar *rssyl_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RSSYL_DIR,
  98                         NULL);
  99
 100         if( !is_dir_exist(rssyl_dir) ) {
 101                 if( make_dir(rssyl_dir) < 0 ) {
 102                         g_warning("couldn't create directory %s\n", rssyl_dir);
 103                 }
 104
 105                 debug_print("RSSyl: created directory %s\n", rssyl_dir);
 106         }
 107
 108         g_free(rssyl_dir);
 109 }
 110
 111 static void rssyl_create_default_mailbox(void)
 112 {
 113         Folder *root = NULL;
 114
 115         rssyl_make_rc_dir();
 116
 117         root = folder_new(rssyl_folder_get_class(), RSSYL_DEFAULT_MAILBOX, NULL);
 118
 119         g_return_if_fail(root != NULL);
 120         folder_add(root);
 121
 122         rssyl_scan_tree(root);
 123
 124         /* FIXME: subscribe default feed */
 125 //      rssyl_subscribe_new_feed(item, RSSYL_DEFAULT_FEED, TRUE);
 126 }
 127
 128 static gboolean rssyl_update_all_feeds_deferred(gpointer data)
 129 {
 130         rssyl_update_all_feeds();
 131         return FALSE;
 132 }
 133
 134 static void rssyl_toolbar_cb_refresh_all_feeds(gpointer parent, const gchar *item_name, gpointer data)
 135 {
 136         rssyl_update_all_feeds();
 137 }
 138
 139 void rssyl_init(void)
 140 {
 141         folder_register_class(rssyl_folder_get_class());
 142
 143         rssyl_gtk_init();
 144         rssyl_make_rc_dir();
 145
 146         rssyl_prefs_init();
 147
 148         folder_func_to_all_folders((FolderItemFunc)rssyl_init_read_func, NULL);
 149
 150         if( !existing_tree_found )
 151                 rssyl_create_default_mailbox();
 152         else
 153                 rssyl_update_format();
 154
 155         prefs_toolbar_register_plugin_item(TOOLBAR_MAIN, "RSSyl", _("Refresh all feeds"), rssyl_toolbar_cb_refresh_all_feeds, NULL);
 156
 157         if( rssyl_prefs_get()->refresh_on_startup &&
 158                         claws_is_starting() )
 159                 g_timeout_add(2000, rssyl_update_all_feeds_deferred, NULL);
 160 }
 161
 162 void rssyl_done(void)
 163 {
 164         rssyl_opml_export();
 165
 166         prefs_toolbar_unregister_plugin_item(TOOLBAR_MAIN, "RSSyl", _("Refresh all feeds"));
 167
 168         rssyl_prefs_done();
 169         rssyl_gtk_done();
 170
 171         if( !claws_is_exiting() )
 172                 folder_unregister_class(rssyl_folder_get_class());
 173
 174         debug_print("RSSyl is done\n");
 175 }
 176
 177 static gchar *rssyl_get_new_msg_filename(FolderItem *dest)
 178 {
 179         gchar *destfile;
 180         gchar *destpath;
 181
 182         destpath = folder_item_get_path(dest);
 183         g_return_val_if_fail(destpath != NULL, NULL);
 184
 185         if( !is_dir_exist(destpath) )
 186                 make_dir_hier(destpath);
 187
 188         for( ; ; ) {
 189                 destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
 190                                 dest->last_num + 1);
 191                 if( is_file_entry_exist(destfile) ) {
 192                         dest->last_num++;
 193                         g_free(destfile);
 194                 } else
 195                         break;
 196         }
 197
 198         g_free(destpath);
 199
 200         return destfile;
 201 }
 202
 203 static void rssyl_get_last_num(Folder *folder, FolderItem *item)
 204 {
 205         gchar *path;
 206         DIR *dp;
 207         struct dirent *d;
 208         gint max = 0;
 209         gint num;
 210
 211         g_return_if_fail(item != NULL);
 212
 213         debug_print("rssyl_get_last_num(): Scanning %s ...\n", item->path);
 214         path = folder_item_get_path(item);
 215         g_return_if_fail(path != NULL);
 216
 217         if( (dp = opendir(path)) == NULL ) {
 218                 FILE_OP_ERROR(item->path, "opendir");
 219                 g_free(path);
 220                 return;
 221         }
 222
 223         g_free(path);
 224
 225         while( (d = readdir(dp)) != NULL ) {
 226                 if( (num = to_number(d->d_name)) > 0 && dirent_is_regular_file(d) ) {
 227                         if( max < num )
 228                                 max = num;
 229                 }
 230         }
 231         closedir(dp);
 232
 233         debug_print("Last number in dir %s = %d\n", item->path, max);
 234         item->last_num = max;
 235 }
 236
 237 static Folder *rssyl_new_folder(const gchar *name, const gchar *path)
 238 {
 239         Folder *folder;
 240
 241         debug_print("RSSyl: new_folder: %s (%s)\n", name, path);
 242
 243         rssyl_make_rc_dir();
 244
 245         folder = g_new0(Folder, 1);
 246         FOLDER(folder)->klass = &rssyl_class;
 247         folder_init(FOLDER(folder), name);
 248
 249         return FOLDER(folder);
 250 }
 251
 252 static void rssyl_destroy_folder(Folder *folder)
 253 {
 254         folder_local_folder_destroy(LOCAL_FOLDER(folder));
 255 }
 256
 257 static void rssyl_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
 258 {
 259         GList *cur;
 260         RFolderItem *ritem = (RFolderItem *)item;
 261
 262         folder_item_set_xml(folder, item, tag);
 263
 264         for( cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
 265                 XMLAttr *attr = (XMLAttr *) cur->data;
 266
 267                 if( !attr || !attr->name || !attr->value)
 268                         continue;
 269
 270                 /* (str) URL */
 271                 if( !strcmp(attr->name, "uri")) {
 272                         g_free(ritem->url);
 273                         ritem->url = g_strdup(attr->value);
 274                 }
 275                 /* (str) Official title */
 276                 if( !strcmp(attr->name, "official_title")) {
 277                         g_free(ritem->official_title);
 278                         ritem->official_title = g_strdup(attr->value);
 279                 }
 280                 /* (bool) Keep old items */
 281                 if( !strcmp(attr->name, "keep_old"))
 282                         ritem->keep_old = (atoi(attr->value) == 0 ? FALSE : TRUE );
 283                 /* (bool) Use default refresh_interval */
 284                 if( !strcmp(attr->name, "default_refresh_interval"))
 285                         ritem->default_refresh_interval = (atoi(attr->value) == 0 ? FALSE : TRUE );
 286                 /* (int) Refresh interval */
 287                 if( !strcmp(attr->name, "refresh_interval"))
 288                         ritem->refresh_interval = atoi(attr->value);
 289                 /* (bool) Fetch comments */
 290                 if( !strcmp(attr->name, "fetch_comments"))
 291                         ritem->fetch_comments = (atoi(attr->value) == 0 ? FALSE : TRUE );
 292                 /* (int) Max age of posts to fetch comments for */
 293                 if( !strcmp(attr->name, "fetch_comments_max_age"))
 294                         ritem->fetch_comments_max_age = atoi(attr->value);
 295                 /* (bool) Write heading */
 296                 if( !strcmp(attr->name, "write_heading"))
 297                         ritem->write_heading = (atoi(attr->value) == 0 ? FALSE : TRUE );
 298                 /* (int) Silent update */
 299                 if( !strcmp(attr->name, "silent_update"))
 300                         ritem->silent_update = atoi(attr->value);
 301                 /* (bool) Ignore title rename */
 302                 if( !strcmp(attr->name, "ignore_title_rename"))
 303                         ritem->ignore_title_rename = (atoi(attr->value) == 0 ? FALSE : TRUE );
 304                 /* (bool) Verify SSL peer  */
 305                 if( !strcmp(attr->name, "ssl_verify_peer"))
 306                         ritem->ssl_verify_peer = (atoi(attr->value) == 0 ? FALSE : TRUE );
 307         }
 308 }
 309
 310 static XMLTag *rssyl_item_get_xml(Folder *folder, FolderItem *item)
 311 {
 312         XMLTag *tag;
 313         RFolderItem *ri = (RFolderItem *)item;
 314         gchar *tmp = NULL;
 315
 316         tag = folder_item_get_xml(folder, item);
 317
 318         /* (str) URL */
 319         if( ri->url != NULL )
 320                 xml_tag_add_attr(tag, xml_attr_new("uri", ri->url));
 321         /* (str) Official title */
 322         if( ri->official_title != NULL )
 323                 xml_tag_add_attr(tag, xml_attr_new("official_title", ri->official_title));
 324         /* (bool) Keep old items */
 325         xml_tag_add_attr(tag, xml_attr_new("keep_old",
 326                                 (ri->keep_old ? "1" : "0")) );
 327         /* (bool) Use default refresh interval */
 328         xml_tag_add_attr(tag, xml_attr_new("default_refresh_interval",
 329                                 (ri->default_refresh_interval ? "1" : "0")) );
 330         /* (int) Refresh interval */
 331         tmp = g_strdup_printf("%d", ri->refresh_interval);
 332         xml_tag_add_attr(tag, xml_attr_new("refresh_interval", tmp));
 333         g_free(tmp);
 334         /* (bool) Fetch comments */
 335         xml_tag_add_attr(tag, xml_attr_new("fetch_comments",
 336                                 (ri->fetch_comments ? "1" : "0")) );
 337         /* (int) Max age of posts to fetch comments for */
 338         tmp = g_strdup_printf("%d", ri->fetch_comments_max_age);
 339         xml_tag_add_attr(tag, xml_attr_new("fetch_comments_max_age", tmp));
 340         g_free(tmp);
 341         /* (bool) Write heading */
 342         xml_tag_add_attr(tag, xml_attr_new("write_heading",
 343                                 (ri->write_heading ? "1" : "0")) );
 344         /* (int) Silent update */
 345         tmp = g_strdup_printf("%d", ri->silent_update);
 346         xml_tag_add_attr(tag, xml_attr_new("silent_update", tmp));
 347         g_free(tmp);
 348         /* (bool) Ignore title rename */
 349         xml_tag_add_attr(tag, xml_attr_new("ignore_title_rename",
 350                                 (ri->ignore_title_rename ? "1" : "0")) );
 351         /* (bool) Verify SSL peer */
 352         xml_tag_add_attr(tag, xml_attr_new("ssl_verify_peer",
 353                                 (ri->ssl_verify_peer ? "1" : "0")) );
 354
 355         return tag;
 356 }
 357
 358 static gint rssyl_scan_tree(Folder *folder)
 359 {
 360         g_return_val_if_fail(folder != NULL, -1);
 361
 362         folder->outbox = NULL;
 363         folder->draft = NULL;
 364         folder->queue = NULL;
 365         folder->trash = NULL;
 366
 367         debug_print("RSSyl: scanning tree\n");
 368         rssyl_create_tree(folder);
 369
 370         return 0;
 371 }
 372
 373 static gint rssyl_create_tree(Folder *folder)
 374 {
 375         FolderItem *rootitem;
 376         GNode *rootnode;
 377
 378         g_return_val_if_fail(folder != NULL, -1);
 379
 380         rssyl_make_rc_dir();
 381
 382         if( !folder->node ) {
 383                 rootitem = folder_item_new(folder, folder->name, NULL);
 384                 rootitem->folder = folder;
 385                 rootnode = g_node_new(rootitem);
 386                 folder->node = rootnode;
 387                 rootitem->node = rootnode;
 388         }
 389
 390         debug_print("RSSyl: created new rssyl tree\n");
 391         return 0;
 392 }
 393
 394 static FolderItem *rssyl_item_new(Folder *folder)
 395 {
 396         RFolderItem *ritem = g_new0(RFolderItem, 1);
 397
 398         ritem->url = NULL;
 399         ritem->official_title = NULL;
 400         ritem->source_id = NULL;
 401         ritem->items = NULL;
 402         ritem->keep_old = FALSE;
 403         ritem->default_refresh_interval = TRUE;
 404         ritem->refresh_interval = atoi(PREF_DEFAULT_REFRESH);
 405         ritem->fetch_comments = FALSE;
 406         ritem->fetch_comments_max_age = -1;
 407         ritem->write_heading = TRUE;
 408         ritem->fetching_comments = FALSE;
 409         ritem->silent_update = 0;
 410         ritem->last_update = 0;
 411         ritem->ignore_title_rename = FALSE;
 412
 413         return (FolderItem *)ritem;
 414 }
 415
 416 static void rssyl_item_destroy(Folder *folder, FolderItem *item)
 417 {
 418         RFolderItem *ritem = (RFolderItem *)item;
 419
 420         g_return_if_fail(ritem != NULL);
 421
 422         g_free(ritem->url);
 423         g_free(ritem->official_title);
 424         g_slist_free(ritem->items);
 425
 426         /* Remove a scheduled refresh, if any */
 427         if( ritem->refresh_id != 0)
 428                 g_source_remove(ritem->refresh_id);
 429
 430         g_free(ritem);
 431 }
 432
 433 static FolderItem *rssyl_create_folder(Folder *folder,
 434                                                                 FolderItem *parent, const gchar *name)
 435 {
 436         gchar *path = NULL, *basepath = NULL, *itempath = NULL;
 437         FolderItem *newitem = NULL;
 438
 439         g_return_val_if_fail(folder != NULL, NULL);
 440         g_return_val_if_fail(parent != NULL, NULL);
 441         g_return_val_if_fail(name != NULL, NULL);
 442
 443         path = folder_item_get_path(parent);
 444         if( !is_dir_exist(path) ) {
 445                 if( (make_dir_hier(path) != 0) ) {
 446                         debug_print("RSSyl: Couldn't create directory (rec) '%s'\n", path);
 447                         return NULL;
 448                 }
 449         }
 450
 451         basepath = g_strdelimit(g_strdup(name), G_DIR_SEPARATOR_S, '_');
 452         path = g_strconcat(path, G_DIR_SEPARATOR_S, basepath, NULL);
 453
 454         if( make_dir(path) < 0 ) {
 455                 debug_print("RSSyl: Couldn't create directory '%s'\n", path);
 456                 g_free(path);
 457                 g_free(basepath);
 458                 return NULL;
 459         }
 460         g_free(path);
 461
 462         itempath = g_strconcat((parent->path ? parent->path : ""),
 463                         G_DIR_SEPARATOR_S, basepath, NULL);
 464         newitem = folder_item_new(folder, name, itempath);
 465         g_free(itempath);
 466         g_free(basepath);
 467
 468         folder_item_append(parent, newitem);
 469
 470         return newitem;
 471 }
 472
 473 FolderItem *rssyl_get_root_folderitem(FolderItem *item)
 474 {
 475         FolderItem *i;
 476
 477         for( i = item; folder_item_parent(i) != NULL; i = folder_item_parent(i) ) { }
 478         return i;
 479 }
 480
 481 static gchar *rssyl_item_get_path(Folder *folder, FolderItem *item)
 482 {
 483         gchar *path, *name;
 484
 485         g_return_val_if_fail(folder != NULL, NULL);
 486         g_return_val_if_fail(item != NULL, NULL);
 487
 488         debug_print("RSSyl: item_get_path\n");
 489
 490         name = folder_item_get_name(rssyl_get_root_folderitem(item));
 491         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RSSYL_DIR,
 492                         G_DIR_SEPARATOR_S, name, G_DIR_SEPARATOR_S, item->path, NULL);
 493         g_free(name);
 494
 495         return path;
 496 }
 497
 498 static gboolean rssyl_rename_folder_func(GNode *node, gpointer data)
 499 {
 500         FolderItem *item = node->data;
 501         gchar **paths = data;
 502         const gchar *oldpath = paths[0];
 503         const gchar *newpath = paths[1];
 504         gchar *base;
 505         gchar *new_itempath;
 506         gint oldpathlen;
 507
 508         oldpathlen = strlen(oldpath);
 509         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
 510                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
 511                 return TRUE;
 512         }
 513
 514         base = item->path + oldpathlen;
 515         while (*base == G_DIR_SEPARATOR) base++;
 516         if (*base == '\0')
 517                 new_itempath = g_strdup(newpath);
 518         else
 519                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
 520                                 NULL);
 521         g_free(item->path);
 522         item->path = new_itempath;
 523
 524         return FALSE;
 525 }
 526
 527 static gint rssyl_rename_folder(Folder *folder, FolderItem *item,
 528                                 const gchar *name)
 529 {
 530         gchar *oldpath;
 531         gchar *dirname;
 532         gchar *newpath, *utf8newpath;
 533         gchar *basenewpath;
 534         gchar *paths[2];
 535
 536         g_return_val_if_fail(folder != NULL, -1);
 537         g_return_val_if_fail(item != NULL, -1);
 538         g_return_val_if_fail(item->path != NULL, -1);
 539         g_return_val_if_fail(name != NULL, -1);
 540
 541         debug_print("RSSyl: rssyl_rename_folder '%s' -> '%s'\n",
 542                         item->name, name);
 543
 544         if (!strcmp(item->name, name))
 545                         return 0;
 546
 547         oldpath = folder_item_get_path(item);
 548         if( !is_dir_exist(oldpath) )
 549                 make_dir_hier(oldpath);
 550
 551         dirname = g_path_get_dirname(oldpath);
 552         basenewpath = g_strdelimit(g_strdup(name), G_DIR_SEPARATOR_S, '_');
 553         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, basenewpath, NULL);
 554         g_free(basenewpath);
 555
 556         if( g_rename(oldpath, newpath) < 0 ) {
 557                 FILE_OP_ERROR(oldpath, "rename");
 558                 g_free(oldpath);
 559                 g_free(newpath);
 560                 return -1;
 561         }
 562
 563         g_free(oldpath);
 564         g_free(newpath);
 565
 566         if( strchr(item->path, G_DIR_SEPARATOR) != NULL ) {
 567                 dirname = g_path_get_dirname(item->path);
 568                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
 569                 g_free(dirname);
 570         } else
 571                 utf8newpath = g_strdup(name);
 572
 573         g_free(item->name);
 574         item->name = g_strdup(name);
 575
 576         paths[0] = g_strdup(item->path);
 577         paths[1] = utf8newpath;
 578         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 579                         rssyl_rename_folder_func, paths);
 580
 581         g_free(paths[0]);
 582         g_free(paths[1]);
 583
 584         return 0;
 585 }
 586
 587 static gint rssyl_remove_folder(Folder *folder, FolderItem *item)
 588 {
 589         gchar *path = NULL;
 590
 591         g_return_val_if_fail(folder != NULL, -1);
 592         g_return_val_if_fail(item != NULL, -1);
 593         g_return_val_if_fail(item->path != NULL, -1);
 594         g_return_val_if_fail(item->stype == F_NORMAL, -1);
 595
 596         debug_print("RSSyl: removing folder item %s\n", item->path);
 597
 598         path = folder_item_get_path(item);
 599         if( remove_dir_recursive(path) < 0 ) {
 600                 g_warning("can't remove directory '%s'\n", path);
 601                 g_free(path);
 602                 return -1;
 603         }
 604
 605         g_free(path);
 606         folder_item_remove(item);
 607
 608         return 0;
 609 }
 610
 611 static gint rssyl_get_num_list(Folder *folder, FolderItem *item,
 612                 MsgNumberList **list, gboolean *old_uids_valid)
 613 {
 614         gchar *path;
 615         DIR *dp;
 616         struct dirent *d;
 617         gint num, nummsgs = 0;
 618
 619         g_return_val_if_fail(item != NULL, -1);
 620
 621         debug_print("RSSyl: get_num_list: scanning '%s'\n", item->path);
 622
 623         *old_uids_valid = TRUE;
 624
 625         path = folder_item_get_path(item);
 626         g_return_val_if_fail(path != NULL, -1);
 627
 628         if( (dp = opendir(path)) == NULL ) {
 629                 FILE_OP_ERROR(item->path, "opendir");
 630                 g_free(path);
 631                 return -1;
 632         }
 633
 634         g_free(path);
 635
 636         while( (d = readdir(dp)) != NULL ) {
 637                 if( (num = to_number(d->d_name)) > 0 ) {
 638                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
 639                         nummsgs++;
 640                 }
 641         }
 642
 643         closedir(dp);
 644
 645         debug_print("RSSyl: get_num_list: returning %d\n", nummsgs);
 646
 647         return nummsgs;
 648 }
 649
 650 static gboolean rssyl_is_msg_changed(Folder *folder, FolderItem *item,
 651                 MsgInfo *msginfo)
 652 {
 653         struct stat s;
 654         gchar *path = NULL;
 655
 656         g_return_val_if_fail(folder != NULL, FALSE);
 657         g_return_val_if_fail(item != NULL, FALSE);
 658         g_return_val_if_fail(msginfo != NULL, FALSE);
 659
 660         path = g_strconcat(folder_item_get_path(item), G_DIR_SEPARATOR_S,
 661                         itos(msginfo->msgnum), NULL);
 662
 663         if (g_stat(path, &s) < 0 ||
 664                 msginfo->size != s.st_size || (
 665                                 (msginfo->mtime - s.st_mtime != 0) &&
 666                                 (msginfo->mtime - s.st_mtime != 3600) &&
 667                                 (msginfo->mtime - s.st_mtime != -3600))) {
 668                 g_free(path);
 669                 return TRUE;
 670         }
 671
 672         g_free(path);
 673         return FALSE;
 674 }
 675
 676 static gchar *rssyl_fetch_msg(Folder *folder, FolderItem *item, gint num)
 677 {
 678         gchar *path;
 679         gchar *file;
 680
 681         g_return_val_if_fail(item != NULL, NULL);
 682         g_return_val_if_fail(num > 0, NULL);
 683
 684         path = folder_item_get_path(item);
 685         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
 686         g_free(path);
 687
 688         debug_print("RSSyl: fetch_msg '%s'\n", file);
 689
 690         if( !is_file_exist(file)) {
 691                 g_free(file);
 692                 return NULL;
 693         }
 694
 695         return file;
 696 }
 697
 698 static MsgInfo *rssyl_get_msginfo(Folder *folder, FolderItem *item, gint num)
 699 {
 700         MsgInfo *msginfo = NULL;
 701         gchar *file;
 702         MsgFlags flags;
 703
 704         g_return_val_if_fail(folder != NULL, NULL);
 705         g_return_val_if_fail(item != NULL, NULL);
 706         g_return_val_if_fail(num > 0, NULL);
 707
 708         debug_print("RSSyl: get_msginfo: %d\n", num);
 709
 710         file = rssyl_fetch_msg(folder, item, num);
 711         g_return_val_if_fail(file != NULL, NULL);
 712
 713         flags.perm_flags = 0;
 714         flags.tmp_flags = 0;
 715
 716         msginfo = rssyl_feed_parse_item_to_msginfo(file, flags, TRUE, TRUE, item);
 717         g_free(file);
 718
 719         if( msginfo )
 720                 msginfo->msgnum = num;
 721
 722         return msginfo;
 723 }
 724
 725 static gint rssyl_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
 726                 GHashTable *relation)
 727 {
 728         gchar *destfile;
 729         GSList *cur;
 730         MsgFileInfo *fileinfo;
 731
 732         g_return_val_if_fail(dest != NULL, -1);
 733         g_return_val_if_fail(file_list != NULL, -1);
 734
 735         if( dest->last_num < 0 ) {
 736                 rssyl_get_last_num(folder, dest);
 737                 if( dest->last_num < 0 ) return -1;
 738         }
 739
 740         for( cur = file_list; cur != NULL; cur = cur->next ) {
 741                 fileinfo = (MsgFileInfo *)cur->data;
 742
 743                 destfile = rssyl_get_new_msg_filename(dest);
 744                 g_return_val_if_fail(destfile != NULL, -1);
 745                 debug_print("RSSyl: add_msgs: new filename is '%s'\n", destfile);
 746
 747                 if( link(fileinfo->file, destfile) < 0 ) {
 748                         if( copy_file(fileinfo->file, destfile, TRUE) < 0 ) {
 749                                 g_warning("can't copy message %s to %s\n", fileinfo->file, destfile);
 750                                 g_free(destfile);
 751                                 return -1;
 752                         }
 753                 }
 754
 755                 if( relation != NULL )
 756                         g_hash_table_insert(relation, fileinfo->msginfo != NULL ?
 757                                         (gpointer) fileinfo->msginfo : (gpointer) fileinfo,
 758                                         GINT_TO_POINTER(dest->last_num + 1));
 759                 g_free(destfile);
 760                 dest->last_num++;
 761         }
 762
 763
 764         return dest->last_num;
 765 }
 766
 767 static gint rssyl_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
 768                 MsgFlags *flags)
 769 {
 770         GSList file_list;
 771         MsgFileInfo fileinfo;
 772
 773         g_return_val_if_fail(file != NULL, -1);
 774
 775         fileinfo.msginfo = NULL;
 776         fileinfo.file = (gchar *)file;
 777         fileinfo.flags = flags;
 778         file_list.data = &fileinfo;
 779         file_list.next = NULL;
 780
 781         return rssyl_add_msgs(folder, dest, &file_list, NULL);
 782 }
 783
 784 static gint rssyl_remove_msg(Folder *folder, FolderItem *item, gint num)
 785 {
 786         gboolean need_scan = FALSE;
 787         gchar *file, *tmp;
 788
 789         g_return_val_if_fail(item != NULL, -1);
 790
 791         file = rssyl_fetch_msg(folder, item, num);
 792         g_return_val_if_fail(file != NULL, -1);
 793
 794         need_scan = mh_get_class()->scan_required(folder, item);
 795
 796         /* are we doing a folder move ? */
 797         tmp = g_strdup_printf("%s.tmp", file);
 798         if (is_file_exist(tmp)) {
 799                 g_unlink(tmp);
 800                 g_free(tmp);
 801                 g_free(file);
 802                 return 0;
 803         }
 804         g_free(tmp);
 805
 806         rssyl_deleted_add((RFolderItem *)item, file);
 807
 808         if( g_unlink(file) < 0 ) {
 809                 FILE_OP_ERROR(file, "unlink");
 810                 g_free(file);
 811                 return -1;
 812         }
 813
 814         if( !need_scan )
 815                 item->mtime = time(NULL);
 816
 817         g_free(file);
 818         return 0;
 819 }
 820
 821 static gboolean rssyl_subscribe_uri(Folder *folder, const gchar *uri)
 822 {
 823         if (folder->klass != rssyl_folder_get_class())
 824                 return FALSE;
 825         return (rssyl_feed_subscribe_new(FOLDER_ITEM(folder->node->data), uri, FALSE) ?
 826                         TRUE : FALSE);
 827 }
 828
 829 static void rssyl_copy_private_data(Folder *folder, FolderItem *oldi,
 830                 FolderItem *newi)
 831 {
 832         gchar *dpathold, *dpathnew;
 833         RFolderItem *olditem = (RFolderItem *)oldi,
 834                                                                         *newitem = (RFolderItem *)newi;
 835
 836         g_return_if_fail(folder != NULL);
 837         g_return_if_fail(olditem != NULL);
 838         g_return_if_fail(newitem != NULL);
 839
 840         if (olditem->url != NULL) {
 841                 g_free(newitem->url);
 842                 newitem->url = g_strdup(olditem->url);
 843         }
 844
 845         if (olditem->official_title != NULL) {
 846                 g_free(newitem->official_title);
 847                 newitem->official_title = g_strdup(olditem->official_title);
 848         }
 849
 850         if (olditem->source_id != NULL) {
 851                 g_free(newitem->source_id);
 852                 newitem->source_id = g_strdup(olditem->source_id);
 853         }
 854
 855         newitem->keep_old = olditem->keep_old;
 856         newitem->default_refresh_interval = olditem->default_refresh_interval;
 857         newitem->refresh_interval = olditem->refresh_interval;
 858         newitem->fetch_comments = olditem->fetch_comments;
 859         newitem->fetch_comments_max_age = olditem->fetch_comments_max_age;
 860         newitem->silent_update = olditem->silent_update;
 861         newitem->write_heading = olditem->write_heading;
 862         newitem->ignore_title_rename = olditem->ignore_title_rename;
 863         newitem->ssl_verify_peer = olditem->ssl_verify_peer;
 864         newitem->refresh_id = olditem->refresh_id;
 865         newitem->fetching_comments = olditem->fetching_comments;
 866         newitem->last_update = olditem->last_update;
 867
 868         dpathold = g_strconcat(rssyl_item_get_path(oldi->folder, oldi),
 869                         G_DIR_SEPARATOR_S, RSSYL_DELETED_FILE, NULL);
 870         dpathnew = g_strconcat(rssyl_item_get_path(newi->folder, newi),
 871                         G_DIR_SEPARATOR_S, RSSYL_DELETED_FILE, NULL);
 872         move_file(dpathold, dpathnew, TRUE);
 873         g_free(dpathold);
 874         g_free(dpathnew);
 875
 876 }
 877
 878 /************************************************************************/
 879
 880 FolderClass *rssyl_folder_get_class()
 881 {
 882         if( rssyl_class.idstr == NULL ) {
 883                 rssyl_class.type = F_UNKNOWN;
 884                 rssyl_class.idstr = "rssyl";
 885                 rssyl_class.uistr = "RSSyl";
 886
 887                 /* Folder functions */
 888                 rssyl_class.new_folder = rssyl_new_folder;
 889                 rssyl_class.destroy_folder = rssyl_destroy_folder;
 890                 rssyl_class.set_xml = folder_set_xml;
 891                 rssyl_class.get_xml = folder_get_xml;
 892                 rssyl_class.scan_tree = rssyl_scan_tree;
 893                 rssyl_class.create_tree = rssyl_create_tree;
 894
 895                 /* FolderItem functions */
 896                 rssyl_class.item_new = rssyl_item_new;
 897                 rssyl_class.item_destroy = rssyl_item_destroy;
 898                 rssyl_class.item_get_path = rssyl_item_get_path;
 899                 rssyl_class.create_folder = rssyl_create_folder;
 900                 rssyl_class.rename_folder = rssyl_rename_folder;
 901                 rssyl_class.remove_folder = rssyl_remove_folder;
 902                 rssyl_class.get_num_list = rssyl_get_num_list;
 903                 rssyl_class.scan_required = mh_get_class()->scan_required;
 904                 rssyl_class.item_set_xml = rssyl_item_set_xml;
 905                 rssyl_class.item_get_xml = rssyl_item_get_xml;
 906
 907                 /* Message functions */
 908                 rssyl_class.get_msginfo = rssyl_get_msginfo;
 909                 rssyl_class.fetch_msg = rssyl_fetch_msg;
 910                 rssyl_class.copy_msg = mh_get_class()->copy_msg;
 911                 rssyl_class.copy_msgs = mh_get_class()->copy_msgs;
 912                 rssyl_class.add_msg = rssyl_add_msg;
 913                 rssyl_class.add_msgs = rssyl_add_msgs;
 914                 rssyl_class.remove_msg = rssyl_remove_msg;
 915                 rssyl_class.remove_msgs = NULL;
 916                 rssyl_class.is_msg_changed = rssyl_is_msg_changed;
 917 //              rssyl_class.change_flags = rssyl_change_flags;
 918                 rssyl_class.change_flags = NULL;
 919                 rssyl_class.subscribe = rssyl_subscribe_uri;
 920                 rssyl_class.copy_private_data = rssyl_copy_private_data;
 921                 rssyl_class.search_msgs = folder_item_search_msgs_local;
 922         }
 923
 924         return &rssyl_class;
 925 }