RSSyl: zero out password variables after migration to password store
[claws.git] / 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", 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, PLUGIN_NAME, _("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, PLUGIN_NAME, _("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         const char *f;
207         GDir *dp;
208         GError *error = NULL;
209         gint max = 0;
210         gint num;
211
212         g_return_if_fail(item != NULL);
213
214         debug_print("rssyl_get_last_num(): Scanning %s ...\n", item->path);
215         path = folder_item_get_path(item);
216         g_return_if_fail(path != NULL);
217
218         if( (dp = g_dir_open(path, 0, &error)) == NULL ) {
219                 FILE_OP_ERROR(item->path, "g_dir_open");
220                 debug_print("g_dir_open() failed on \"%s\", error %d (%s).\n",
221                                 path, error->code, error->message);
222                 g_error_free(error);
223                 g_free(path);
224                 return;
225         }
226
227         g_free(path);
228
229         while( (f = g_dir_read_name(dp)) != NULL) {
230                 if ((num = to_number(f)) > 0 &&
231                                 g_file_test(f, G_FILE_TEST_IS_REGULAR)) {
232                         if( max < num )
233                                 max = num;
234                 }
235         }
236         g_dir_close(dp);
237
238         debug_print("Last number in dir %s = %d\n", item->path, max);
239         item->last_num = max;
240 }
241
242 static Folder *rssyl_new_folder(const gchar *name, const gchar *path)
243 {
244         Folder *folder;
245
246         debug_print("RSSyl: new_folder: %s (%s)\n", name, path);
247
248         rssyl_make_rc_dir();
249
250         folder = g_new0(Folder, 1);
251         FOLDER(folder)->klass = &rssyl_class;
252         folder_init(FOLDER(folder), name);
253
254         return FOLDER(folder);
255 }
256
257 static void rssyl_destroy_folder(Folder *folder)
258 {
259         folder_local_folder_destroy(LOCAL_FOLDER(folder));
260 }
261
262 static void rssyl_item_set_xml(Folder *folder, FolderItem *item, XMLTag *tag)
263 {
264         GList *cur;
265         RFolderItem *ritem = (RFolderItem *)item;
266
267         folder_item_set_xml(folder, item, tag);
268
269         for( cur = tag->attr; cur != NULL; cur = g_list_next(cur)) {
270                 XMLAttr *attr = (XMLAttr *) cur->data;
271
272                 if( !attr || !attr->name || !attr->value)
273                         continue;
274
275                 /* (str) URL */
276                 if( !strcmp(attr->name, "uri")) {
277                         g_free(ritem->url);
278                         ritem->url = g_strdup(attr->value);
279                 }
280                 /* (int) URL auth */
281                 if (!strcmp(attr->name, "auth")) {
282                         ritem->auth->type = atoi(attr->value);
283                 }
284                 /* (str) Auth user */
285                 if (!strcmp(attr->name, "auth_user")) {
286                         g_free(ritem->auth->username);
287                         ritem->auth->username = g_strdup(attr->value);
288                 }
289                 /* (str) Auth pass - save directly to password store */
290                 if (!strcmp(attr->name, "auth_pass")) {
291                         gsize len = 0;
292                         guchar *pwd = g_base64_decode(attr->value, &len);
293                         memset(attr->value, 0, strlen(attr->value));
294                         rssyl_passwd_set(ritem, (gchar *)pwd);
295                         memset(pwd, 0, strlen(pwd));
296                         g_free(pwd);
297                 }
298                 /* (str) Official title */
299                 if( !strcmp(attr->name, "official_title")) {
300                         g_free(ritem->official_title);
301                         ritem->official_title = g_strdup(attr->value);
302                 }
303                 /* (bool) Keep old items */
304                 if( !strcmp(attr->name, "keep_old"))
305                         ritem->keep_old = (atoi(attr->value) == 0 ? FALSE : TRUE );
306                 /* (bool) Use default refresh_interval */
307                 if( !strcmp(attr->name, "default_refresh_interval"))
308                         ritem->default_refresh_interval = (atoi(attr->value) == 0 ? FALSE : TRUE );
309                 /* (int) Refresh interval */
310                 if( !strcmp(attr->name, "refresh_interval"))
311                         ritem->refresh_interval = atoi(attr->value);
312                 /* (bool) Fetch comments */
313                 if( !strcmp(attr->name, "fetch_comments"))
314                         ritem->fetch_comments = (atoi(attr->value) == 0 ? FALSE : TRUE );
315                 /* (int) Max age of posts to fetch comments for */
316                 if( !strcmp(attr->name, "fetch_comments_max_age"))
317                         ritem->fetch_comments_max_age = atoi(attr->value);
318                 /* (bool) Write heading */
319                 if( !strcmp(attr->name, "write_heading"))
320                         ritem->write_heading = (atoi(attr->value) == 0 ? FALSE : TRUE );
321                 /* (int) Silent update */
322                 if( !strcmp(attr->name, "silent_update"))
323                         ritem->silent_update = atoi(attr->value);
324                 /* (bool) Ignore title rename */
325                 if( !strcmp(attr->name, "ignore_title_rename"))
326                         ritem->ignore_title_rename = (atoi(attr->value) == 0 ? FALSE : TRUE );
327                 /* (bool) Verify SSL peer  */
328                 if( !strcmp(attr->name, "ssl_verify_peer"))
329                         ritem->ssl_verify_peer = (atoi(attr->value) == 0 ? FALSE : TRUE );
330         }
331 }
332
333 static XMLTag *rssyl_item_get_xml(Folder *folder, FolderItem *item)
334 {
335         XMLTag *tag;
336         RFolderItem *ri = (RFolderItem *)item;
337         gchar *tmp = NULL;
338
339         tag = folder_item_get_xml(folder, item);
340
341         /* (str) URL */
342         if( ri->url != NULL )
343                 xml_tag_add_attr(tag, xml_attr_new("uri", ri->url));
344         /* (int) Auth */
345         tmp = g_strdup_printf("%d", ri->auth->type);
346         xml_tag_add_attr(tag, xml_attr_new("auth", tmp));
347         g_free(tmp);
348         /* (str) Auth user */
349         if (ri->auth->username != NULL)
350                 xml_tag_add_attr(tag, xml_attr_new("auth_user", ri->auth->username));
351         /* (str) Official title */
352         if( ri->official_title != NULL )
353                 xml_tag_add_attr(tag, xml_attr_new("official_title", ri->official_title));
354         /* (bool) Keep old items */
355         xml_tag_add_attr(tag, xml_attr_new("keep_old",
356                                 (ri->keep_old ? "1" : "0")) );
357         /* (bool) Use default refresh interval */
358         xml_tag_add_attr(tag, xml_attr_new("default_refresh_interval",
359                                 (ri->default_refresh_interval ? "1" : "0")) );
360         /* (int) Refresh interval */
361         tmp = g_strdup_printf("%d", ri->refresh_interval);
362         xml_tag_add_attr(tag, xml_attr_new("refresh_interval", tmp));
363         g_free(tmp);
364         /* (bool) Fetch comments */
365         xml_tag_add_attr(tag, xml_attr_new("fetch_comments",
366                                 (ri->fetch_comments ? "1" : "0")) );
367         /* (int) Max age of posts to fetch comments for */
368         tmp = g_strdup_printf("%d", ri->fetch_comments_max_age);
369         xml_tag_add_attr(tag, xml_attr_new("fetch_comments_max_age", tmp));
370         g_free(tmp);
371         /* (bool) Write heading */
372         xml_tag_add_attr(tag, xml_attr_new("write_heading",
373                                 (ri->write_heading ? "1" : "0")) );
374         /* (int) Silent update */
375         tmp = g_strdup_printf("%d", ri->silent_update);
376         xml_tag_add_attr(tag, xml_attr_new("silent_update", tmp));
377         g_free(tmp);
378         /* (bool) Ignore title rename */
379         xml_tag_add_attr(tag, xml_attr_new("ignore_title_rename",
380                                 (ri->ignore_title_rename ? "1" : "0")) );
381         /* (bool) Verify SSL peer */
382         xml_tag_add_attr(tag, xml_attr_new("ssl_verify_peer",
383                                 (ri->ssl_verify_peer ? "1" : "0")) );
384
385         return tag;
386 }
387
388 static gint rssyl_scan_tree(Folder *folder)
389 {
390         g_return_val_if_fail(folder != NULL, -1);
391
392         folder->outbox = NULL;
393         folder->draft = NULL;
394         folder->queue = NULL;
395         folder->trash = NULL;
396
397         debug_print("RSSyl: scanning tree\n");
398         rssyl_create_tree(folder);
399
400         return 0;
401 }
402
403 static gint rssyl_create_tree(Folder *folder)
404 {
405         FolderItem *rootitem;
406         GNode *rootnode;
407
408         g_return_val_if_fail(folder != NULL, -1);
409
410         rssyl_make_rc_dir();
411
412         if( !folder->node ) {
413                 rootitem = folder_item_new(folder, folder->name, NULL);
414                 rootitem->folder = folder;
415                 rootnode = g_node_new(rootitem);
416                 folder->node = rootnode;
417                 rootitem->node = rootnode;
418         }
419
420         debug_print("RSSyl: created new rssyl tree\n");
421         return 0;
422 }
423
424 static FolderItem *rssyl_item_new(Folder *folder)
425 {
426         RFolderItem *ritem = g_new0(RFolderItem, 1);
427
428         ritem->url = NULL;
429         ritem->auth = g_new0(FeedAuth, 1);
430         ritem->auth->type = FEED_AUTH_NONE;
431         ritem->auth->username = NULL;
432         ritem->auth->password = NULL;
433         ritem->official_title = NULL;
434         ritem->source_id = NULL;
435         ritem->items = NULL;
436         ritem->keep_old = FALSE;
437         ritem->default_refresh_interval = TRUE;
438         ritem->refresh_interval = atoi(PREF_DEFAULT_REFRESH);
439         ritem->fetch_comments = FALSE;
440         ritem->fetch_comments_max_age = -1;
441         ritem->write_heading = TRUE;
442         ritem->fetching_comments = FALSE;
443         ritem->silent_update = 0;
444         ritem->last_update = 0;
445         ritem->ignore_title_rename = FALSE;
446
447         return (FolderItem *)ritem;
448 }
449
450 static void rssyl_item_destroy(Folder *folder, FolderItem *item)
451 {
452         RFolderItem *ritem = (RFolderItem *)item;
453
454         g_return_if_fail(ritem != NULL);
455
456         g_free(ritem->url);
457         if (ritem->auth->username)
458                 g_free(ritem->auth->username);
459         if (ritem->auth->password)
460                 g_free(ritem->auth->password);
461         g_free(ritem->auth);
462         g_free(ritem->official_title);
463         g_slist_free(ritem->items);
464
465         /* Remove a scheduled refresh, if any */
466         if( ritem->refresh_id != 0)
467                 g_source_remove(ritem->refresh_id);
468
469         g_free(ritem);
470 }
471
472 static FolderItem *rssyl_create_folder(Folder *folder,
473                                                                 FolderItem *parent, const gchar *name)
474 {
475         gchar *path = NULL, *basepath = NULL, *itempath = NULL;
476         FolderItem *newitem = NULL;
477
478         g_return_val_if_fail(folder != NULL, NULL);
479         g_return_val_if_fail(parent != NULL, NULL);
480         g_return_val_if_fail(name != NULL, NULL);
481
482         path = folder_item_get_path(parent);
483         if( !is_dir_exist(path) ) {
484                 if( (make_dir_hier(path) != 0) ) {
485                         debug_print("RSSyl: Couldn't create directory (rec) '%s'\n", path);
486                         return NULL;
487                 }
488         }
489
490         basepath = g_strdelimit(g_strdup(name), G_DIR_SEPARATOR_S, '_');
491         path = g_strconcat(path, G_DIR_SEPARATOR_S, basepath, NULL);
492
493         if( make_dir(path) < 0 ) {
494                 debug_print("RSSyl: Couldn't create directory '%s'\n", path);
495                 g_free(path);
496                 g_free(basepath);
497                 return NULL;
498         }
499         g_free(path);
500
501         itempath = g_strconcat((parent->path ? parent->path : ""),
502                         G_DIR_SEPARATOR_S, basepath, NULL);
503         newitem = folder_item_new(folder, name, itempath);
504         g_free(itempath);
505         g_free(basepath);
506
507         folder_item_append(parent, newitem);
508
509         return newitem;
510 }
511
512 FolderItem *rssyl_get_root_folderitem(FolderItem *item)
513 {
514         FolderItem *i;
515
516         for( i = item; folder_item_parent(i) != NULL; i = folder_item_parent(i) ) { }
517         return i;
518 }
519
520 static gchar *rssyl_item_get_path(Folder *folder, FolderItem *item)
521 {
522         gchar *path, *name;
523
524         g_return_val_if_fail(folder != NULL, NULL);
525         g_return_val_if_fail(item != NULL, NULL);
526
527         name = folder_item_get_name(rssyl_get_root_folderitem(item));
528         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RSSYL_DIR,
529                         G_DIR_SEPARATOR_S, name, item->path, NULL);
530         g_free(name);
531
532         return path;
533 }
534
535 static gboolean rssyl_rename_folder_func(GNode *node, gpointer data)
536 {
537         FolderItem *item = node->data;
538         gchar **paths = data;
539         const gchar *oldpath = paths[0];
540         const gchar *newpath = paths[1];
541         gchar *base;
542         gchar *new_itempath;
543         gint oldpathlen;
544
545         oldpathlen = strlen(oldpath);
546         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
547                 g_warning("path doesn't match: %s, %s", oldpath, item->path);
548                 return TRUE;
549         }
550
551         base = item->path + oldpathlen;
552         while (*base == G_DIR_SEPARATOR) base++;
553         if (*base == '\0')
554                 new_itempath = g_strdup(newpath);
555         else
556                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
557                                 NULL);
558         g_free(item->path);
559         item->path = new_itempath;
560
561         return FALSE;
562 }
563
564 static gint rssyl_rename_folder(Folder *folder, FolderItem *item,
565                                 const gchar *name)
566 {
567         gchar *oldpath;
568         gchar *dirname;
569         gchar *newpath, *utf8newpath;
570         gchar *basenewpath;
571         gchar *paths[2];
572
573         g_return_val_if_fail(folder != NULL, -1);
574         g_return_val_if_fail(item != NULL, -1);
575         g_return_val_if_fail(item->path != NULL, -1);
576         g_return_val_if_fail(name != NULL, -1);
577
578         debug_print("RSSyl: rssyl_rename_folder '%s' -> '%s'\n",
579                         item->name, name);
580
581         if (!strcmp(item->name, name))
582                         return 0;
583
584         oldpath = folder_item_get_path(item);
585         if( !is_dir_exist(oldpath) )
586                 make_dir_hier(oldpath);
587
588         dirname = g_path_get_dirname(oldpath);
589         basenewpath = g_strdelimit(g_strdup(name), G_DIR_SEPARATOR_S, '_');
590         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, basenewpath, NULL);
591         g_free(basenewpath);
592
593         if( g_rename(oldpath, newpath) < 0 ) {
594                 FILE_OP_ERROR(oldpath, "rename");
595                 g_free(oldpath);
596                 g_free(newpath);
597                 return -1;
598         }
599
600         g_free(oldpath);
601         g_free(newpath);
602
603         if( strchr(item->path, G_DIR_SEPARATOR) != NULL ) {
604                 dirname = g_path_get_dirname(item->path);
605                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
606                 g_free(dirname);
607         } else
608                 utf8newpath = g_strdup(name);
609
610         g_free(item->name);
611         item->name = g_strdup(name);
612
613         paths[0] = g_strdup(item->path);
614         paths[1] = utf8newpath;
615         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
616                         rssyl_rename_folder_func, paths);
617
618         g_free(paths[0]);
619         g_free(paths[1]);
620
621         return 0;
622 }
623
624 static gint rssyl_remove_folder(Folder *folder, FolderItem *item)
625 {
626         gchar *path = NULL;
627
628         g_return_val_if_fail(folder != NULL, -1);
629         g_return_val_if_fail(item != NULL, -1);
630         g_return_val_if_fail(item->path != NULL, -1);
631         g_return_val_if_fail(item->stype == F_NORMAL, -1);
632
633         debug_print("RSSyl: removing folder item %s\n", item->path);
634
635         path = folder_item_get_path(item);
636         if( remove_dir_recursive(path) < 0 ) {
637                 g_warning("can't remove directory '%s'", path);
638                 g_free(path);
639                 return -1;
640         }
641
642         g_free(path);
643         folder_item_remove(item);
644
645         return 0;
646 }
647
648 static gint rssyl_get_num_list(Folder *folder, FolderItem *item,
649                 MsgNumberList **list, gboolean *old_uids_valid)
650 {
651         gchar *path;
652         GDir *dp;
653         const gchar *d;
654         GError *error = NULL;
655         gint num, nummsgs = 0;
656
657         g_return_val_if_fail(item != NULL, -1);
658
659         debug_print("RSSyl: get_num_list: scanning '%s'\n", item->path);
660
661         *old_uids_valid = TRUE;
662         
663         path = folder_item_get_path(item);
664         g_return_val_if_fail(path != NULL, -1);
665
666         if( (dp = g_dir_open(path, 0, &error)) == NULL ) {
667                 debug_print("g_dir_open() failed on \"%s\", error %d (%s).\n",
668                                 path, error->code, error->message);
669                 g_error_free(error);
670                 g_free(path);
671                 return -1;
672         }
673
674         g_free(path);
675
676         while( (d = g_dir_read_name(dp)) != NULL ) {
677                 if( (num = to_number(d)) > 0 ) {
678                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
679                         nummsgs++;
680                 }
681         }
682         g_dir_close(dp);
683
684         debug_print("RSSyl: get_num_list: returning %d\n", nummsgs);
685
686         return nummsgs;
687 }
688
689 static gboolean rssyl_is_msg_changed(Folder *folder, FolderItem *item,
690                 MsgInfo *msginfo)
691 {
692         GStatBuf s;
693         gchar *path = NULL;
694         gchar *itempath = NULL;
695
696         g_return_val_if_fail(folder != NULL, FALSE);
697         g_return_val_if_fail(item != NULL, FALSE);
698         g_return_val_if_fail(msginfo != NULL, FALSE);
699
700         itempath = folder_item_get_path(item);
701         path = g_strconcat(itempath, G_DIR_SEPARATOR_S, itos(msginfo->msgnum), NULL);
702         g_free(itempath);
703
704         if (g_stat(path, &s) < 0 ||
705                 msginfo->size != s.st_size || (
706                                 (msginfo->mtime - s.st_mtime != 0) &&
707                                 (msginfo->mtime - s.st_mtime != 3600) &&
708                                 (msginfo->mtime - s.st_mtime != -3600))) {
709                 g_free(path);
710                 return TRUE;
711         }
712
713         g_free(path);
714         return FALSE;
715 }
716
717 static gchar *rssyl_fetch_msg(Folder *folder, FolderItem *item, gint num)
718 {
719         gchar *path;
720         gchar *file;
721
722         g_return_val_if_fail(item != NULL, NULL);
723         g_return_val_if_fail(num > 0, NULL);
724
725         path = folder_item_get_path(item);
726         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
727         g_free(path);
728
729         debug_print("RSSyl: fetch_msg '%s'\n", file);
730
731         if( !is_file_exist(file)) {
732                 g_free(file);
733                 return NULL;
734         }
735
736         return file;
737 }
738
739 static MsgInfo *rssyl_get_msginfo(Folder *folder, FolderItem *item, gint num)
740 {
741         MsgInfo *msginfo = NULL;
742         gchar *file;
743         MsgFlags flags;
744
745         g_return_val_if_fail(folder != NULL, NULL);
746         g_return_val_if_fail(item != NULL, NULL);
747         g_return_val_if_fail(num > 0, NULL);
748
749         debug_print("RSSyl: get_msginfo: %d\n", num);
750
751         file = rssyl_fetch_msg(folder, item, num);
752         g_return_val_if_fail(file != NULL, NULL);
753
754         flags.perm_flags = 0;
755         flags.tmp_flags = 0;
756
757         msginfo = rssyl_feed_parse_item_to_msginfo(file, flags, TRUE, TRUE, item);
758         g_free(file);
759
760         if( msginfo )
761                 msginfo->msgnum = num;
762
763         return msginfo;
764 }
765
766 static gint rssyl_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
767                 GHashTable *relation)
768 {
769         gchar *destfile;
770         GSList *cur;
771         MsgFileInfo *fileinfo;
772
773         g_return_val_if_fail(dest != NULL, -1);
774         g_return_val_if_fail(file_list != NULL, -1);
775
776         if( dest->last_num < 0 ) {
777                 rssyl_get_last_num(folder, dest);
778                 if( dest->last_num < 0 ) return -1;
779         }
780
781         for( cur = file_list; cur != NULL; cur = cur->next ) {
782                 fileinfo = (MsgFileInfo *)cur->data;
783
784                 destfile = rssyl_get_new_msg_filename(dest);
785                 g_return_val_if_fail(destfile != NULL, -1);
786                 debug_print("RSSyl: add_msgs: new filename is '%s'\n", destfile);
787
788                 if( copy_file(fileinfo->file, destfile, TRUE) < 0 ) {
789                         g_warning("can't copy message %s to %s", fileinfo->file, destfile);
790                         g_free(destfile);
791                         return -1;
792                 }
793
794                 if( relation != NULL )
795                         g_hash_table_insert(relation, fileinfo->msginfo != NULL ?
796                                         (gpointer) fileinfo->msginfo : (gpointer) fileinfo,
797                                         GINT_TO_POINTER(dest->last_num + 1));
798                 g_free(destfile);
799                 dest->last_num++;
800         }
801
802
803         return dest->last_num;
804 }
805
806 static gint rssyl_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
807                 MsgFlags *flags)
808 {
809         GSList file_list;
810         MsgFileInfo fileinfo;
811
812         g_return_val_if_fail(file != NULL, -1);
813
814         fileinfo.msginfo = NULL;
815         fileinfo.file = (gchar *)file;
816         fileinfo.flags = flags;
817         file_list.data = &fileinfo;
818         file_list.next = NULL;
819
820         return rssyl_add_msgs(folder, dest, &file_list, NULL);
821 }
822
823 static gint rssyl_remove_msg(Folder *folder, FolderItem *item, gint num)
824 {
825         gboolean need_scan = FALSE;
826         gchar *file, *tmp;
827
828         g_return_val_if_fail(item != NULL, -1);
829
830         file = rssyl_fetch_msg(folder, item, num);
831         g_return_val_if_fail(file != NULL, -1);
832
833         need_scan = mh_get_class()->scan_required(folder, item);
834
835         /* are we doing a folder move ? */
836         tmp = g_strdup_printf("%s.tmp", file);
837         if (is_file_exist(tmp)) {
838                 g_unlink(tmp);
839                 g_free(tmp);
840                 g_free(file);
841                 return 0;
842         }
843         g_free(tmp);
844
845         rssyl_deleted_add((RFolderItem *)item, file);
846
847         if( g_unlink(file) < 0 ) {
848                 FILE_OP_ERROR(file, "unlink");
849                 g_free(file);
850                 return -1;
851         }
852
853         if( !need_scan )
854                 item->mtime = time(NULL);
855
856         g_free(file);
857         return 0;
858 }
859
860 static gboolean rssyl_subscribe_uri(Folder *folder, const gchar *uri)
861 {
862         if (folder->klass != rssyl_folder_get_class())
863                 return FALSE;
864         return (rssyl_feed_subscribe_new(FOLDER_ITEM(folder->node->data), uri, FALSE) ?
865                         TRUE : FALSE);
866 }
867
868 static void rssyl_copy_private_data(Folder *folder, FolderItem *oldi,
869                 FolderItem *newi)
870 {
871         gchar *dpathold, *dpathnew;
872         RFolderItem *olditem = (RFolderItem *)oldi,
873                                                                         *newitem = (RFolderItem *)newi;
874
875         g_return_if_fail(folder != NULL);
876         g_return_if_fail(olditem != NULL);
877         g_return_if_fail(newitem != NULL);
878
879         if (olditem->url != NULL) {
880                 g_free(newitem->url);
881                 newitem->url = g_strdup(olditem->url);
882         }
883
884         if (olditem->auth != NULL) {
885                 if (newitem->auth != NULL) {
886                         if (newitem->auth->username != NULL) {
887                                 g_free(newitem->auth->username);
888                                 newitem->auth->username = NULL;
889                         }
890                         if (newitem->auth->password != NULL) {
891                                 g_free(newitem->auth->password);
892                                 newitem->auth->password = NULL;
893                         }
894                         g_free(newitem->auth);
895                 }
896                 newitem->auth = g_new0(FeedAuth, 1);
897                 newitem->auth->type = olditem->auth->type;
898                 if (olditem->auth->username != NULL)
899                         newitem->auth->username = g_strdup(olditem->auth->username);
900                 if (olditem->auth->password != NULL)
901                         newitem->auth->password = g_strdup(olditem->auth->password);
902         }
903
904         if (olditem->official_title != NULL) {
905                 g_free(newitem->official_title);
906                 newitem->official_title = g_strdup(olditem->official_title);
907         }
908
909         if (olditem->source_id != NULL) {
910                 g_free(newitem->source_id);
911                 newitem->source_id = g_strdup(olditem->source_id);
912         }
913
914         newitem->keep_old = olditem->keep_old;
915         newitem->default_refresh_interval = olditem->default_refresh_interval;
916         newitem->refresh_interval = olditem->refresh_interval;
917         newitem->fetch_comments = olditem->fetch_comments;
918         newitem->fetch_comments_max_age = olditem->fetch_comments_max_age;
919         newitem->silent_update = olditem->silent_update;
920         newitem->write_heading = olditem->write_heading;
921         newitem->ignore_title_rename = olditem->ignore_title_rename;
922         newitem->ssl_verify_peer = olditem->ssl_verify_peer;
923         newitem->refresh_id = olditem->refresh_id;
924         newitem->fetching_comments = olditem->fetching_comments;
925         newitem->last_update = olditem->last_update;
926
927         dpathold = g_strconcat(rssyl_item_get_path(oldi->folder, oldi),
928                         G_DIR_SEPARATOR_S, RSSYL_DELETED_FILE, NULL);
929         dpathnew = g_strconcat(rssyl_item_get_path(newi->folder, newi),
930                         G_DIR_SEPARATOR_S, RSSYL_DELETED_FILE, NULL);
931         move_file(dpathold, dpathnew, TRUE);
932         g_free(dpathold);
933         g_free(dpathnew);
934
935 }
936
937 /************************************************************************/
938
939 FolderClass *rssyl_folder_get_class()
940 {
941         if( rssyl_class.idstr == NULL ) {
942                 rssyl_class.type = F_UNKNOWN;
943                 rssyl_class.idstr = "rssyl";
944                 rssyl_class.uistr = PLUGIN_NAME;
945
946                 /* Folder functions */
947                 rssyl_class.new_folder = rssyl_new_folder;
948                 rssyl_class.destroy_folder = rssyl_destroy_folder;
949                 rssyl_class.set_xml = folder_set_xml;
950                 rssyl_class.get_xml = folder_get_xml;
951                 rssyl_class.scan_tree = rssyl_scan_tree;
952                 rssyl_class.create_tree = rssyl_create_tree;
953
954                 /* FolderItem functions */
955                 rssyl_class.item_new = rssyl_item_new;
956                 rssyl_class.item_destroy = rssyl_item_destroy;
957                 rssyl_class.item_get_path = rssyl_item_get_path;
958                 rssyl_class.create_folder = rssyl_create_folder;
959                 rssyl_class.rename_folder = rssyl_rename_folder;
960                 rssyl_class.remove_folder = rssyl_remove_folder;
961                 rssyl_class.get_num_list = rssyl_get_num_list;
962                 rssyl_class.scan_required = mh_get_class()->scan_required;
963                 rssyl_class.item_set_xml = rssyl_item_set_xml;
964                 rssyl_class.item_get_xml = rssyl_item_get_xml;
965
966                 /* Message functions */
967                 rssyl_class.get_msginfo = rssyl_get_msginfo;
968                 rssyl_class.fetch_msg = rssyl_fetch_msg;
969                 rssyl_class.copy_msg = mh_get_class()->copy_msg;
970                 rssyl_class.copy_msgs = mh_get_class()->copy_msgs;
971                 rssyl_class.add_msg = rssyl_add_msg;
972                 rssyl_class.add_msgs = rssyl_add_msgs;
973                 rssyl_class.remove_msg = rssyl_remove_msg;
974                 rssyl_class.remove_msgs = NULL;
975                 rssyl_class.is_msg_changed = rssyl_is_msg_changed;
976 //              rssyl_class.change_flags = rssyl_change_flags;
977                 rssyl_class.change_flags = NULL;
978                 rssyl_class.subscribe = rssyl_subscribe_uri;
979                 rssyl_class.copy_private_data = rssyl_copy_private_data;
980                 rssyl_class.search_msgs = folder_item_search_msgs_local;
981         }
982
983         return &rssyl_class;
984 }