RSSyl: preferences for HTTP auth basic
[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\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                 /* (int) URL auth */
276                 if (!strcmp(attr->name, "auth")) {
277                         ritem->auth->type = atoi(attr->value);
278                 }
279                 /* (str) Auth user */
280                 if (!strcmp(attr->name, "auth_user")) {
281                         g_free(ritem->auth->username);
282                         ritem->auth->username = g_strdup(attr->value);
283                 }
284                 /* (str) Auth pass */
285                 if (!strcmp(attr->name, "auth_pass")) {
286                         gsize len = 0;
287                         guchar *pwd = g_base64_decode(attr->value, &len);
288                         g_free(ritem->auth->password);
289                         ritem->auth->password = (gchar *)pwd;
290                 }
291                 /* (str) Official title */
292                 if( !strcmp(attr->name, "official_title")) {
293                         g_free(ritem->official_title);
294                         ritem->official_title = g_strdup(attr->value);
295                 }
296                 /* (bool) Keep old items */
297                 if( !strcmp(attr->name, "keep_old"))
298                         ritem->keep_old = (atoi(attr->value) == 0 ? FALSE : TRUE );
299                 /* (bool) Use default refresh_interval */
300                 if( !strcmp(attr->name, "default_refresh_interval"))
301                         ritem->default_refresh_interval = (atoi(attr->value) == 0 ? FALSE : TRUE );
302                 /* (int) Refresh interval */
303                 if( !strcmp(attr->name, "refresh_interval"))
304                         ritem->refresh_interval = atoi(attr->value);
305                 /* (bool) Fetch comments */
306                 if( !strcmp(attr->name, "fetch_comments"))
307                         ritem->fetch_comments = (atoi(attr->value) == 0 ? FALSE : TRUE );
308                 /* (int) Max age of posts to fetch comments for */
309                 if( !strcmp(attr->name, "fetch_comments_max_age"))
310                         ritem->fetch_comments_max_age = atoi(attr->value);
311                 /* (bool) Write heading */
312                 if( !strcmp(attr->name, "write_heading"))
313                         ritem->write_heading = (atoi(attr->value) == 0 ? FALSE : TRUE );
314                 /* (int) Silent update */
315                 if( !strcmp(attr->name, "silent_update"))
316                         ritem->silent_update = atoi(attr->value);
317                 /* (bool) Ignore title rename */
318                 if( !strcmp(attr->name, "ignore_title_rename"))
319                         ritem->ignore_title_rename = (atoi(attr->value) == 0 ? FALSE : TRUE );
320                 /* (bool) Verify SSL peer  */
321                 if( !strcmp(attr->name, "ssl_verify_peer"))
322                         ritem->ssl_verify_peer = (atoi(attr->value) == 0 ? FALSE : TRUE );
323         }
324 }
325
326 static XMLTag *rssyl_item_get_xml(Folder *folder, FolderItem *item)
327 {
328         XMLTag *tag;
329         RFolderItem *ri = (RFolderItem *)item;
330         gchar *tmp = NULL;
331
332         tag = folder_item_get_xml(folder, item);
333
334         /* (str) URL */
335         if( ri->url != NULL )
336                 xml_tag_add_attr(tag, xml_attr_new("uri", ri->url));
337         /* (int) Auth */
338         tmp = g_strdup_printf("%d", ri->auth->type);
339         xml_tag_add_attr(tag, xml_attr_new("auth", tmp));
340         g_free(tmp);
341         /* (str) Auth user */
342         if (ri->auth->username != NULL)
343                 xml_tag_add_attr(tag, xml_attr_new("auth_user", ri->auth->username));
344         /* (str) Auth pass */
345         if (ri->auth->password != NULL) {
346                 gchar *pwd = g_base64_encode(ri->auth->password, strlen(ri->auth->password));
347                 xml_tag_add_attr(tag, xml_attr_new("auth_pass", pwd));
348                 g_free(pwd);
349         }
350         /* (str) Official title */
351         if( ri->official_title != NULL )
352                 xml_tag_add_attr(tag, xml_attr_new("official_title", ri->official_title));
353         /* (bool) Keep old items */
354         xml_tag_add_attr(tag, xml_attr_new("keep_old",
355                                 (ri->keep_old ? "1" : "0")) );
356         /* (bool) Use default refresh interval */
357         xml_tag_add_attr(tag, xml_attr_new("default_refresh_interval",
358                                 (ri->default_refresh_interval ? "1" : "0")) );
359         /* (int) Refresh interval */
360         tmp = g_strdup_printf("%d", ri->refresh_interval);
361         xml_tag_add_attr(tag, xml_attr_new("refresh_interval", tmp));
362         g_free(tmp);
363         /* (bool) Fetch comments */
364         xml_tag_add_attr(tag, xml_attr_new("fetch_comments",
365                                 (ri->fetch_comments ? "1" : "0")) );
366         /* (int) Max age of posts to fetch comments for */
367         tmp = g_strdup_printf("%d", ri->fetch_comments_max_age);
368         xml_tag_add_attr(tag, xml_attr_new("fetch_comments_max_age", tmp));
369         g_free(tmp);
370         /* (bool) Write heading */
371         xml_tag_add_attr(tag, xml_attr_new("write_heading",
372                                 (ri->write_heading ? "1" : "0")) );
373         /* (int) Silent update */
374         tmp = g_strdup_printf("%d", ri->silent_update);
375         xml_tag_add_attr(tag, xml_attr_new("silent_update", tmp));
376         g_free(tmp);
377         /* (bool) Ignore title rename */
378         xml_tag_add_attr(tag, xml_attr_new("ignore_title_rename",
379                                 (ri->ignore_title_rename ? "1" : "0")) );
380         /* (bool) Verify SSL peer */
381         xml_tag_add_attr(tag, xml_attr_new("ssl_verify_peer",
382                                 (ri->ssl_verify_peer ? "1" : "0")) );
383
384         return tag;
385 }
386
387 static gint rssyl_scan_tree(Folder *folder)
388 {
389         g_return_val_if_fail(folder != NULL, -1);
390
391         folder->outbox = NULL;
392         folder->draft = NULL;
393         folder->queue = NULL;
394         folder->trash = NULL;
395
396         debug_print("RSSyl: scanning tree\n");
397         rssyl_create_tree(folder);
398
399         return 0;
400 }
401
402 static gint rssyl_create_tree(Folder *folder)
403 {
404         FolderItem *rootitem;
405         GNode *rootnode;
406
407         g_return_val_if_fail(folder != NULL, -1);
408
409         rssyl_make_rc_dir();
410
411         if( !folder->node ) {
412                 rootitem = folder_item_new(folder, folder->name, NULL);
413                 rootitem->folder = folder;
414                 rootnode = g_node_new(rootitem);
415                 folder->node = rootnode;
416                 rootitem->node = rootnode;
417         }
418
419         debug_print("RSSyl: created new rssyl tree\n");
420         return 0;
421 }
422
423 static FolderItem *rssyl_item_new(Folder *folder)
424 {
425         RFolderItem *ritem = g_new0(RFolderItem, 1);
426
427         ritem->url = NULL;
428         ritem->auth = g_new0(FeedAuth, 1);
429         ritem->auth->type = FEED_AUTH_NONE;
430         ritem->auth->username = NULL;
431         ritem->auth->password = NULL;
432         ritem->official_title = NULL;
433         ritem->source_id = NULL;
434         ritem->items = NULL;
435         ritem->keep_old = FALSE;
436         ritem->default_refresh_interval = TRUE;
437         ritem->refresh_interval = atoi(PREF_DEFAULT_REFRESH);
438         ritem->fetch_comments = FALSE;
439         ritem->fetch_comments_max_age = -1;
440         ritem->write_heading = TRUE;
441         ritem->fetching_comments = FALSE;
442         ritem->silent_update = 0;
443         ritem->last_update = 0;
444         ritem->ignore_title_rename = FALSE;
445
446         return (FolderItem *)ritem;
447 }
448
449 static void rssyl_item_destroy(Folder *folder, FolderItem *item)
450 {
451         RFolderItem *ritem = (RFolderItem *)item;
452
453         g_return_if_fail(ritem != NULL);
454
455         g_free(ritem->url);
456         if (ritem->auth->username)
457                 g_free(ritem->auth->username);
458         if (ritem->auth->password)
459                 g_free(ritem->auth->password);
460         g_free(ritem->auth);
461         g_free(ritem->official_title);
462         g_slist_free(ritem->items);
463
464         /* Remove a scheduled refresh, if any */
465         if( ritem->refresh_id != 0)
466                 g_source_remove(ritem->refresh_id);
467
468         g_free(ritem);
469 }
470
471 static FolderItem *rssyl_create_folder(Folder *folder,
472                                                                 FolderItem *parent, const gchar *name)
473 {
474         gchar *path = NULL, *basepath = NULL, *itempath = NULL;
475         FolderItem *newitem = NULL;
476
477         g_return_val_if_fail(folder != NULL, NULL);
478         g_return_val_if_fail(parent != NULL, NULL);
479         g_return_val_if_fail(name != NULL, NULL);
480
481         path = folder_item_get_path(parent);
482         if( !is_dir_exist(path) ) {
483                 if( (make_dir_hier(path) != 0) ) {
484                         debug_print("RSSyl: Couldn't create directory (rec) '%s'\n", path);
485                         return NULL;
486                 }
487         }
488
489         basepath = g_strdelimit(g_strdup(name), G_DIR_SEPARATOR_S, '_');
490         path = g_strconcat(path, G_DIR_SEPARATOR_S, basepath, NULL);
491
492         if( make_dir(path) < 0 ) {
493                 debug_print("RSSyl: Couldn't create directory '%s'\n", path);
494                 g_free(path);
495                 g_free(basepath);
496                 return NULL;
497         }
498         g_free(path);
499
500         itempath = g_strconcat((parent->path ? parent->path : ""),
501                         G_DIR_SEPARATOR_S, basepath, NULL);
502         newitem = folder_item_new(folder, name, itempath);
503         g_free(itempath);
504         g_free(basepath);
505
506         folder_item_append(parent, newitem);
507
508         return newitem;
509 }
510
511 FolderItem *rssyl_get_root_folderitem(FolderItem *item)
512 {
513         FolderItem *i;
514
515         for( i = item; folder_item_parent(i) != NULL; i = folder_item_parent(i) ) { }
516         return i;
517 }
518
519 static gchar *rssyl_item_get_path(Folder *folder, FolderItem *item)
520 {
521         gchar *path, *name;
522
523         g_return_val_if_fail(folder != NULL, NULL);
524         g_return_val_if_fail(item != NULL, NULL);
525
526         debug_print("RSSyl: item_get_path\n");
527
528         name = folder_item_get_name(rssyl_get_root_folderitem(item));
529         path = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RSSYL_DIR,
530                         G_DIR_SEPARATOR_S, name, G_DIR_SEPARATOR_S, item->path, NULL);
531         g_free(name);
532
533         return path;
534 }
535
536 static gboolean rssyl_rename_folder_func(GNode *node, gpointer data)
537 {
538         FolderItem *item = node->data;
539         gchar **paths = data;
540         const gchar *oldpath = paths[0];
541         const gchar *newpath = paths[1];
542         gchar *base;
543         gchar *new_itempath;
544         gint oldpathlen;
545
546         oldpathlen = strlen(oldpath);
547         if (strncmp(oldpath, item->path, oldpathlen) != 0) {
548                 g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
549                 return TRUE;
550         }
551
552         base = item->path + oldpathlen;
553         while (*base == G_DIR_SEPARATOR) base++;
554         if (*base == '\0')
555                 new_itempath = g_strdup(newpath);
556         else
557                 new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
558                                 NULL);
559         g_free(item->path);
560         item->path = new_itempath;
561
562         return FALSE;
563 }
564
565 static gint rssyl_rename_folder(Folder *folder, FolderItem *item,
566                                 const gchar *name)
567 {
568         gchar *oldpath;
569         gchar *dirname;
570         gchar *newpath, *utf8newpath;
571         gchar *basenewpath;
572         gchar *paths[2];
573
574         g_return_val_if_fail(folder != NULL, -1);
575         g_return_val_if_fail(item != NULL, -1);
576         g_return_val_if_fail(item->path != NULL, -1);
577         g_return_val_if_fail(name != NULL, -1);
578
579         debug_print("RSSyl: rssyl_rename_folder '%s' -> '%s'\n",
580                         item->name, name);
581
582         if (!strcmp(item->name, name))
583                         return 0;
584
585         oldpath = folder_item_get_path(item);
586         if( !is_dir_exist(oldpath) )
587                 make_dir_hier(oldpath);
588
589         dirname = g_path_get_dirname(oldpath);
590         basenewpath = g_strdelimit(g_strdup(name), G_DIR_SEPARATOR_S, '_');
591         newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, basenewpath, NULL);
592         g_free(basenewpath);
593
594         if( g_rename(oldpath, newpath) < 0 ) {
595                 FILE_OP_ERROR(oldpath, "rename");
596                 g_free(oldpath);
597                 g_free(newpath);
598                 return -1;
599         }
600
601         g_free(oldpath);
602         g_free(newpath);
603
604         if( strchr(item->path, G_DIR_SEPARATOR) != NULL ) {
605                 dirname = g_path_get_dirname(item->path);
606                 utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
607                 g_free(dirname);
608         } else
609                 utf8newpath = g_strdup(name);
610
611         g_free(item->name);
612         item->name = g_strdup(name);
613
614         paths[0] = g_strdup(item->path);
615         paths[1] = utf8newpath;
616         g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
617                         rssyl_rename_folder_func, paths);
618
619         g_free(paths[0]);
620         g_free(paths[1]);
621
622         return 0;
623 }
624
625 static gint rssyl_remove_folder(Folder *folder, FolderItem *item)
626 {
627         gchar *path = NULL;
628
629         g_return_val_if_fail(folder != NULL, -1);
630         g_return_val_if_fail(item != NULL, -1);
631         g_return_val_if_fail(item->path != NULL, -1);
632         g_return_val_if_fail(item->stype == F_NORMAL, -1);
633
634         debug_print("RSSyl: removing folder item %s\n", item->path);
635
636         path = folder_item_get_path(item);
637         if( remove_dir_recursive(path) < 0 ) {
638                 g_warning("can't remove directory '%s'\n", path);
639                 g_free(path);
640                 return -1;
641         }
642
643         g_free(path);
644         folder_item_remove(item);
645
646         return 0;
647 }
648
649 static gint rssyl_get_num_list(Folder *folder, FolderItem *item,
650                 MsgNumberList **list, gboolean *old_uids_valid)
651 {
652         gchar *path;
653         DIR *dp;
654         struct dirent *d;
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 = opendir(path)) == NULL ) {
667                 FILE_OP_ERROR(item->path, "opendir");
668                 g_free(path);
669                 return -1;
670         }
671
672         g_free(path);
673
674         while( (d = readdir(dp)) != NULL ) {
675                 if( (num = to_number(d->d_name)) > 0 ) {
676                         *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
677                         nummsgs++;
678                 }
679         }
680
681         closedir(dp);
682
683         debug_print("RSSyl: get_num_list: returning %d\n", nummsgs);
684
685         return nummsgs;
686 }
687
688 static gboolean rssyl_is_msg_changed(Folder *folder, FolderItem *item,
689                 MsgInfo *msginfo)
690 {
691         struct stat s;
692         gchar *path = NULL;
693
694         g_return_val_if_fail(folder != NULL, FALSE);
695         g_return_val_if_fail(item != NULL, FALSE);
696         g_return_val_if_fail(msginfo != NULL, FALSE);
697
698         path = g_strconcat(folder_item_get_path(item), G_DIR_SEPARATOR_S,
699                         itos(msginfo->msgnum), NULL);
700
701         if (g_stat(path, &s) < 0 ||
702                 msginfo->size != s.st_size || (
703                                 (msginfo->mtime - s.st_mtime != 0) &&
704                                 (msginfo->mtime - s.st_mtime != 3600) &&
705                                 (msginfo->mtime - s.st_mtime != -3600))) {
706                 g_free(path);
707                 return TRUE;
708         }
709
710         g_free(path);
711         return FALSE;
712 }
713
714 static gchar *rssyl_fetch_msg(Folder *folder, FolderItem *item, gint num)
715 {
716         gchar *path;
717         gchar *file;
718
719         g_return_val_if_fail(item != NULL, NULL);
720         g_return_val_if_fail(num > 0, NULL);
721
722         path = folder_item_get_path(item);
723         file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
724         g_free(path);
725
726         debug_print("RSSyl: fetch_msg '%s'\n", file);
727
728         if( !is_file_exist(file)) {
729                 g_free(file);
730                 return NULL;
731         }
732
733         return file;
734 }
735
736 static MsgInfo *rssyl_get_msginfo(Folder *folder, FolderItem *item, gint num)
737 {
738         MsgInfo *msginfo = NULL;
739         gchar *file;
740         MsgFlags flags;
741
742         g_return_val_if_fail(folder != NULL, NULL);
743         g_return_val_if_fail(item != NULL, NULL);
744         g_return_val_if_fail(num > 0, NULL);
745
746         debug_print("RSSyl: get_msginfo: %d\n", num);
747
748         file = rssyl_fetch_msg(folder, item, num);
749         g_return_val_if_fail(file != NULL, NULL);
750
751         flags.perm_flags = 0;
752         flags.tmp_flags = 0;
753
754         msginfo = rssyl_feed_parse_item_to_msginfo(file, flags, TRUE, TRUE, item);
755         g_free(file);
756
757         if( msginfo )
758                 msginfo->msgnum = num;
759
760         return msginfo;
761 }
762
763 static gint rssyl_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
764                 GHashTable *relation)
765 {
766         gchar *destfile;
767         GSList *cur;
768         MsgFileInfo *fileinfo;
769
770         g_return_val_if_fail(dest != NULL, -1);
771         g_return_val_if_fail(file_list != NULL, -1);
772
773         if( dest->last_num < 0 ) {
774                 rssyl_get_last_num(folder, dest);
775                 if( dest->last_num < 0 ) return -1;
776         }
777
778         for( cur = file_list; cur != NULL; cur = cur->next ) {
779                 fileinfo = (MsgFileInfo *)cur->data;
780
781                 destfile = rssyl_get_new_msg_filename(dest);
782                 g_return_val_if_fail(destfile != NULL, -1);
783                 debug_print("RSSyl: add_msgs: new filename is '%s'\n", destfile);
784
785                 if( link(fileinfo->file, destfile) < 0 ) {
786                         if( copy_file(fileinfo->file, destfile, TRUE) < 0 ) {
787                                 g_warning("can't copy message %s to %s\n", fileinfo->file, destfile);
788                                 g_free(destfile);
789                                 return -1;
790                         }
791                 }
792
793                 if( relation != NULL )
794                         g_hash_table_insert(relation, fileinfo->msginfo != NULL ?
795                                         (gpointer) fileinfo->msginfo : (gpointer) fileinfo,
796                                         GINT_TO_POINTER(dest->last_num + 1));
797                 g_free(destfile);
798                 dest->last_num++;
799         }
800
801
802         return dest->last_num;
803 }
804
805 static gint rssyl_add_msg(Folder *folder, FolderItem *dest, const gchar *file,
806                 MsgFlags *flags)
807 {
808         GSList file_list;
809         MsgFileInfo fileinfo;
810
811         g_return_val_if_fail(file != NULL, -1);
812
813         fileinfo.msginfo = NULL;
814         fileinfo.file = (gchar *)file;
815         fileinfo.flags = flags;
816         file_list.data = &fileinfo;
817         file_list.next = NULL;
818
819         return rssyl_add_msgs(folder, dest, &file_list, NULL);
820 }
821
822 static gint rssyl_remove_msg(Folder *folder, FolderItem *item, gint num)
823 {
824         gboolean need_scan = FALSE;
825         gchar *file, *tmp;
826
827         g_return_val_if_fail(item != NULL, -1);
828
829         file = rssyl_fetch_msg(folder, item, num);
830         g_return_val_if_fail(file != NULL, -1);
831
832         need_scan = mh_get_class()->scan_required(folder, item);
833
834         /* are we doing a folder move ? */
835         tmp = g_strdup_printf("%s.tmp", file);
836         if (is_file_exist(tmp)) {
837                 g_unlink(tmp);
838                 g_free(tmp);
839                 g_free(file);
840                 return 0;
841         }
842         g_free(tmp);
843
844         rssyl_deleted_add((RFolderItem *)item, file);
845
846         if( g_unlink(file) < 0 ) {
847                 FILE_OP_ERROR(file, "unlink");
848                 g_free(file);
849                 return -1;
850         }
851
852         if( !need_scan )
853                 item->mtime = time(NULL);
854
855         g_free(file);
856         return 0;
857 }
858
859 static gboolean rssyl_subscribe_uri(Folder *folder, const gchar *uri)
860 {
861         if (folder->klass != rssyl_folder_get_class())
862                 return FALSE;
863         return (rssyl_feed_subscribe_new(FOLDER_ITEM(folder->node->data), uri, FALSE) ?
864                         TRUE : FALSE);
865 }
866
867 static void rssyl_copy_private_data(Folder *folder, FolderItem *oldi,
868                 FolderItem *newi)
869 {
870         gchar *dpathold, *dpathnew;
871         RFolderItem *olditem = (RFolderItem *)oldi,
872                                                                         *newitem = (RFolderItem *)newi;
873
874         g_return_if_fail(folder != NULL);
875         g_return_if_fail(olditem != NULL);
876         g_return_if_fail(newitem != NULL);
877
878         if (olditem->url != NULL) {
879                 g_free(newitem->url);
880                 newitem->url = g_strdup(olditem->url);
881         }
882
883         if (olditem->auth != NULL) {
884                 if (newitem->auth != NULL) {
885                         if (newitem->auth->username != NULL) {
886                                 g_free(newitem->auth->username);
887                                 newitem->auth->username = NULL;
888                         }
889                         if (newitem->auth->password != NULL) {
890                                 g_free(newitem->auth->password);
891                                 newitem->auth->password = NULL;
892                         }
893                         g_free(newitem->auth);
894                 }
895                 newitem->auth = g_new0(FeedAuth, 1);
896                 newitem->auth->type = olditem->auth->type;
897                 if (olditem->auth->username != NULL)
898                         newitem->auth->username = g_strdup(olditem->auth->username);
899                 if (olditem->auth->password != NULL)
900                         newitem->auth->password = g_strdup(olditem->auth->password);
901         }
902
903         if (olditem->official_title != NULL) {
904                 g_free(newitem->official_title);
905                 newitem->official_title = g_strdup(olditem->official_title);
906         }
907
908         if (olditem->source_id != NULL) {
909                 g_free(newitem->source_id);
910                 newitem->source_id = g_strdup(olditem->source_id);
911         }
912
913         newitem->keep_old = olditem->keep_old;
914         newitem->default_refresh_interval = olditem->default_refresh_interval;
915         newitem->refresh_interval = olditem->refresh_interval;
916         newitem->fetch_comments = olditem->fetch_comments;
917         newitem->fetch_comments_max_age = olditem->fetch_comments_max_age;
918         newitem->silent_update = olditem->silent_update;
919         newitem->write_heading = olditem->write_heading;
920         newitem->ignore_title_rename = olditem->ignore_title_rename;
921         newitem->ssl_verify_peer = olditem->ssl_verify_peer;
922         newitem->refresh_id = olditem->refresh_id;
923         newitem->fetching_comments = olditem->fetching_comments;
924         newitem->last_update = olditem->last_update;
925
926         dpathold = g_strconcat(rssyl_item_get_path(oldi->folder, oldi),
927                         G_DIR_SEPARATOR_S, RSSYL_DELETED_FILE, NULL);
928         dpathnew = g_strconcat(rssyl_item_get_path(newi->folder, newi),
929                         G_DIR_SEPARATOR_S, RSSYL_DELETED_FILE, NULL);
930         move_file(dpathold, dpathnew, TRUE);
931         g_free(dpathold);
932         g_free(dpathnew);
933
934 }
935
936 /************************************************************************/
937
938 FolderClass *rssyl_folder_get_class()
939 {
940         if( rssyl_class.idstr == NULL ) {
941                 rssyl_class.type = F_UNKNOWN;
942                 rssyl_class.idstr = "rssyl";
943                 rssyl_class.uistr = "RSSyl";
944
945                 /* Folder functions */
946                 rssyl_class.new_folder = rssyl_new_folder;
947                 rssyl_class.destroy_folder = rssyl_destroy_folder;
948                 rssyl_class.set_xml = folder_set_xml;
949                 rssyl_class.get_xml = folder_get_xml;
950                 rssyl_class.scan_tree = rssyl_scan_tree;
951                 rssyl_class.create_tree = rssyl_create_tree;
952
953                 /* FolderItem functions */
954                 rssyl_class.item_new = rssyl_item_new;
955                 rssyl_class.item_destroy = rssyl_item_destroy;
956                 rssyl_class.item_get_path = rssyl_item_get_path;
957                 rssyl_class.create_folder = rssyl_create_folder;
958                 rssyl_class.rename_folder = rssyl_rename_folder;
959                 rssyl_class.remove_folder = rssyl_remove_folder;
960                 rssyl_class.get_num_list = rssyl_get_num_list;
961                 rssyl_class.scan_required = mh_get_class()->scan_required;
962                 rssyl_class.item_set_xml = rssyl_item_set_xml;
963                 rssyl_class.item_get_xml = rssyl_item_get_xml;
964
965                 /* Message functions */
966                 rssyl_class.get_msginfo = rssyl_get_msginfo;
967                 rssyl_class.fetch_msg = rssyl_fetch_msg;
968                 rssyl_class.copy_msg = mh_get_class()->copy_msg;
969                 rssyl_class.copy_msgs = mh_get_class()->copy_msgs;
970                 rssyl_class.add_msg = rssyl_add_msg;
971                 rssyl_class.add_msgs = rssyl_add_msgs;
972                 rssyl_class.remove_msg = rssyl_remove_msg;
973                 rssyl_class.remove_msgs = NULL;
974                 rssyl_class.is_msg_changed = rssyl_is_msg_changed;
975 //              rssyl_class.change_flags = rssyl_change_flags;
976                 rssyl_class.change_flags = NULL;
977                 rssyl_class.subscribe = rssyl_subscribe_uri;
978                 rssyl_class.copy_private_data = rssyl_copy_private_data;
979                 rssyl_class.search_msgs = folder_item_search_msgs_local;
980         }
981
982         return &rssyl_class;
983 }