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1 <?php
2
3 class API extends Handler {
4
5         const API_LEVEL  = 12;
6
7         const STATUS_OK  = 0;
8         const STATUS_ERR = 1;
9
10         private $seq;
11
12         function before($method) {
13                 if (parent::before($method)) {
14                         header("Content-Type: text/json");
15
16                         if (!$_SESSION["uid"] && $method != "login" && $method != "isloggedin") {
17                                 $this->wrap(self::STATUS_ERR, array("error" => 'NOT_LOGGED_IN'));
18                                 return false;
19                         }
20
21                         if ($_SESSION["uid"] && $method != "logout" && !get_pref('ENABLE_API_ACCESS')) {
22                                 $this->wrap(self::STATUS_ERR, array("error" => 'API_DISABLED'));
23                                 return false;
24                         }
25
26                         $this->seq = (int) $_REQUEST['seq'];
27
28                         return true;
29                 }
30                 return false;
31         }
32
33         function wrap($status, $reply) {
34                 print json_encode(array("seq" => $this->seq,
35                         "status" => $status,
36                         "content" => $reply));
37         }
38
39         function getVersion() {
40                 $rv = array("version" => VERSION);
41                 $this->wrap(self::STATUS_OK, $rv);
42         }
43
44         function getApiLevel() {
45                 $rv = array("level" => self::API_LEVEL);
46                 $this->wrap(self::STATUS_OK, $rv);
47         }
48
49         function login() {
50                 @session_destroy();
51                 @session_start();
52
53                 $login = $this->dbh->escape_string($_REQUEST["user"]);
54                 $password = $_REQUEST["password"];
55                 $password_base64 = base64_decode($_REQUEST["password"]);
56
57                 if (SINGLE_USER_MODE) $login = "admin";
58
59                 $result = $this->dbh->query("SELECT id FROM ttrss_users WHERE login = '$login'");
60
61                 if ($this->dbh->num_rows($result) != 0) {
62                         $uid = $this->dbh->fetch_result($result, 0, "id");
63                 } else {
64                         $uid = 0;
65                 }
66
67                 if (!$uid) {
68                         $this->wrap(self::STATUS_ERR, array("error" => "LOGIN_ERROR"));
69                         return;
70                 }
71
72                 if (get_pref("ENABLE_API_ACCESS", $uid)) {
73                         if (authenticate_user($login, $password)) {               // try login with normal password
74                                 $this->wrap(self::STATUS_OK, array("session_id" => session_id(),
75                                         "api_level" => self::API_LEVEL));
76                         } else if (authenticate_user($login, $password_base64)) { // else try with base64_decoded password
77                                 $this->wrap(self::STATUS_OK,    array("session_id" => session_id(),
78                                         "api_level" => self::API_LEVEL));
79                         } else {                                                         // else we are not logged in
80                                 user_error("Failed login attempt for $login from {$_SERVER['REMOTE_ADDR']}", E_USER_WARNING);
81                                 $this->wrap(self::STATUS_ERR, array("error" => "LOGIN_ERROR"));
82                         }
83                 } else {
84                         $this->wrap(self::STATUS_ERR, array("error" => "API_DISABLED"));
85                 }
86
87         }
88
89         function logout() {
90                 logout_user();
91                 $this->wrap(self::STATUS_OK, array("status" => "OK"));
92         }
93
94         function isLoggedIn() {
95                 $this->wrap(self::STATUS_OK, array("status" => $_SESSION["uid"] != ''));
96         }
97
98         function getUnread() {
99                 $feed_id = $this->dbh->escape_string($_REQUEST["feed_id"]);
100                 $is_cat = $this->dbh->escape_string($_REQUEST["is_cat"]);
101
102                 if ($feed_id) {
103                         $this->wrap(self::STATUS_OK, array("unread" => getFeedUnread($feed_id, $is_cat)));
104                 } else {
105                         $this->wrap(self::STATUS_OK, array("unread" => getGlobalUnread()));
106                 }
107         }
108
109         /* Method added for ttrss-reader for Android */
110         function getCounters() {
111                 $this->wrap(self::STATUS_OK, getAllCounters());
112         }
113
114         function getFeeds() {
115                 $cat_id = $this->dbh->escape_string($_REQUEST["cat_id"]);
116                 $unread_only = sql_bool_to_bool($_REQUEST["unread_only"]);
117                 $limit = (int) $this->dbh->escape_string($_REQUEST["limit"]);
118                 $offset = (int) $this->dbh->escape_string($_REQUEST["offset"]);
119                 $include_nested = sql_bool_to_bool($_REQUEST["include_nested"]);
120
121                 $feeds = $this->api_get_feeds($cat_id, $unread_only, $limit, $offset, $include_nested);
122
123                 $this->wrap(self::STATUS_OK, $feeds);
124         }
125
126         function getCategories() {
127                 $unread_only = sql_bool_to_bool($_REQUEST["unread_only"]);
128                 $enable_nested = sql_bool_to_bool($_REQUEST["enable_nested"]);
129                 $include_empty = sql_bool_to_bool($_REQUEST['include_empty']);
130
131                 // TODO do not return empty categories, return Uncategorized and standard virtual cats
132
133                 if ($enable_nested)
134                         $nested_qpart = "parent_cat IS NULL";
135                 else
136                         $nested_qpart = "true";
137
138                 $result = $this->dbh->query("SELECT
139                                 id, title, order_id, (SELECT COUNT(id) FROM
140                                 ttrss_feeds WHERE
141                                 ttrss_feed_categories.id IS NOT NULL AND cat_id = ttrss_feed_categories.id) AS num_feeds,
142                         (SELECT COUNT(id) FROM
143                                 ttrss_feed_categories AS c2 WHERE
144                                 c2.parent_cat = ttrss_feed_categories.id) AS num_cats
145                         FROM ttrss_feed_categories
146                         WHERE $nested_qpart AND owner_uid = " .
147                         $_SESSION["uid"]);
148
149                 $cats = array();
150
151                 while ($line = $this->dbh->fetch_assoc($result)) {
152                         if ($include_empty || $line["num_feeds"] > 0 || $line["num_cats"] > 0) {
153                                 $unread = getFeedUnread($line["id"], true);
154
155                                 if ($enable_nested)
156                                         $unread += getCategoryChildrenUnread($line["id"]);
157
158                                 if ($unread || !$unread_only) {
159                                         array_push($cats, array("id" => $line["id"],
160                                                 "title" => $line["title"],
161                                                 "unread" => $unread,
162                                                 "order_id" => (int) $line["order_id"],
163                                         ));
164                                 }
165                         }
166                 }
167
168                 foreach (array(-2,-1,0) as $cat_id) {
169                         if ($include_empty || !$this->isCategoryEmpty($cat_id)) {
170                                 $unread = getFeedUnread($cat_id, true);
171
172                                 if ($unread || !$unread_only) {
173                                         array_push($cats, array("id" => $cat_id,
174                                                 "title" => getCategoryTitle($cat_id),
175                                                 "unread" => $unread));
176                                 }
177                         }
178                 }
179
180                 $this->wrap(self::STATUS_OK, $cats);
181         }
182
183         function getHeadlines() {
184                 $feed_id = $this->dbh->escape_string($_REQUEST["feed_id"]);
185                 if ($feed_id != "") {
186
187                         if (is_numeric($feed_id)) $feed_id = (int) $feed_id;
188
189                         $limit = (int)$this->dbh->escape_string($_REQUEST["limit"]);
190
191                         if (!$limit || $limit >= 200) $limit = 200;
192
193                         $offset = (int)$this->dbh->escape_string($_REQUEST["skip"]);
194                         $filter = $this->dbh->escape_string($_REQUEST["filter"]);
195                         $is_cat = sql_bool_to_bool($_REQUEST["is_cat"]);
196                         $show_excerpt = sql_bool_to_bool($_REQUEST["show_excerpt"]);
197                         $show_content = sql_bool_to_bool($_REQUEST["show_content"]);
198                         /* all_articles, unread, adaptive, marked, updated */
199                         $view_mode = $this->dbh->escape_string($_REQUEST["view_mode"]);
200                         $include_attachments = sql_bool_to_bool($_REQUEST["include_attachments"]);
201                         $since_id = (int)$this->dbh->escape_string($_REQUEST["since_id"]);
202                         $include_nested = sql_bool_to_bool($_REQUEST["include_nested"]);
203                         $sanitize_content = !isset($_REQUEST["sanitize"]) ||
204                                 sql_bool_to_bool($_REQUEST["sanitize"]);
205                         $force_update = sql_bool_to_bool($_REQUEST["force_update"]);
206                         $has_sandbox = sql_bool_to_bool($_REQUEST["has_sandbox"]);
207                         $excerpt_length = (int)$this->dbh->escape_string($_REQUEST["excerpt_length"]);
208                         $check_first_id = (int)$this->dbh->escape_string($_REQUEST["check_first_id"]);
209                         $include_header = sql_bool_to_bool($_REQUEST["include_header"]);
210
211                         $_SESSION['hasSandbox'] = $has_sandbox;
212
213                         $skip_first_id_check = false;
214
215                         $override_order = false;
216                         switch ($_REQUEST["order_by"]) {
217                                 case "title":
218                                         $override_order = "ttrss_entries.title";
219                                         break;
220                                 case "date_reverse":
221                                         $override_order = "score DESC, date_entered, updated";
222                                         $skip_first_id_check = true;
223                                         break;
224                                 case "feed_dates":
225                                         $override_order = "updated DESC";
226                                         break;
227                         }
228
229                         /* do not rely on params below */
230
231                         $search = $this->dbh->escape_string($_REQUEST["search"]);
232
233                         list($headlines, $headlines_header) = $this->api_get_headlines($feed_id, $limit, $offset,
234                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $override_order,
235                                 $include_attachments, $since_id, $search,
236                                 $include_nested, $sanitize_content, $force_update, $excerpt_length, $check_first_id, $skip_first_id_check);
237
238                         if ($include_header) {
239                                 $this->wrap(self::STATUS_OK, array($headlines_header, $headlines));
240                         } else {
241                                 $this->wrap(self::STATUS_OK, $headlines);
242                         }
243                 } else {
244                         $this->wrap(self::STATUS_ERR, array("error" => 'INCORRECT_USAGE'));
245                 }
246         }
247
248         function updateArticle() {
249                 $article_ids = array_filter(explode(",", $this->dbh->escape_string($_REQUEST["article_ids"])), is_numeric);
250                 $mode = (int) $this->dbh->escape_string($_REQUEST["mode"]);
251                 $data = $this->dbh->escape_string($_REQUEST["data"]);
252                 $field_raw = (int)$this->dbh->escape_string($_REQUEST["field"]);
253
254                 $field = "";
255                 $set_to = "";
256
257                 switch ($field_raw) {
258                         case 0:
259                                 $field = "marked";
260                                 $additional_fields = ",last_marked = NOW()";
261                                 break;
262                         case 1:
263                                 $field = "published";
264                                 $additional_fields = ",last_published = NOW()";
265                                 break;
266                         case 2:
267                                 $field = "unread";
268                                 $additional_fields = ",last_read = NOW()";
269                                 break;
270                         case 3:
271                                 $field = "note";
272                 };
273
274                 switch ($mode) {
275                         case 1:
276                                 $set_to = "true";
277                                 break;
278                         case 0:
279                                 $set_to = "false";
280                                 break;
281                         case 2:
282                                 $set_to = "NOT $field";
283                                 break;
284                 }
285
286                 if ($field == "note") $set_to = "'$data'";
287
288                 if ($field && $set_to && count($article_ids) > 0) {
289
290                         $article_ids = join(", ", $article_ids);
291
292                         $result = $this->dbh->query("UPDATE ttrss_user_entries SET $field = $set_to $additional_fields WHERE ref_id IN ($article_ids) AND owner_uid = " . $_SESSION["uid"]);
293
294                         $num_updated = $this->dbh->affected_rows($result);
295
296                         if ($num_updated > 0 && $field == "unread") {
297                                 $result = $this->dbh->query("SELECT DISTINCT feed_id FROM ttrss_user_entries
298                                         WHERE ref_id IN ($article_ids)");
299
300                                 while ($line = $this->dbh->fetch_assoc($result)) {
301                                         ccache_update($line["feed_id"], $_SESSION["uid"]);
302                                 }
303                         }
304
305                         if ($num_updated > 0 && $field == "published") {
306                                 if (PUBSUBHUBBUB_HUB) {
307                                         $rss_link = get_self_url_prefix() .
308                                                 "/public.php?op=rss&id=-2&key=" .
309                                                 get_feed_access_key(-2, false);
310
311                                         $p = new Publisher(PUBSUBHUBBUB_HUB);
312                                         $pubsub_result = $p->publish_update($rss_link);
313                                 }
314                         }
315
316                         $this->wrap(self::STATUS_OK, array("status" => "OK",
317                                 "updated" => $num_updated));
318
319                 } else {
320                         $this->wrap(self::STATUS_ERR, array("error" => 'INCORRECT_USAGE'));
321                 }
322
323         }
324
325         function getArticle() {
326
327                 $article_id = join(",", array_filter(explode(",", $this->dbh->escape_string($_REQUEST["article_id"])), is_numeric));
328
329                 if ($article_id) {
330
331                         $query = "SELECT id,title,link,content,feed_id,comments,int_id,
332                                 marked,unread,published,score,note,lang,
333                                 ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
334                                 author,(SELECT title FROM ttrss_feeds WHERE id = feed_id) AS feed_title
335                                 FROM ttrss_entries,ttrss_user_entries
336                                 WHERE   id IN ($article_id) AND ref_id = id AND owner_uid = " .
337                                         $_SESSION["uid"] ;
338
339                         $result = $this->dbh->query($query);
340
341                         $articles = array();
342
343                         if ($this->dbh->num_rows($result) != 0) {
344
345                                 while ($line = $this->dbh->fetch_assoc($result)) {
346
347                                         $attachments = get_article_enclosures($line['id']);
348
349                                         $article = array(
350                                                 "id" => $line["id"],
351                                                 "title" => $line["title"],
352                                                 "link" => $line["link"],
353                                                 "labels" => get_article_labels($line['id']),
354                                                 "unread" => sql_bool_to_bool($line["unread"]),
355                                                 "marked" => sql_bool_to_bool($line["marked"]),
356                                                 "published" => sql_bool_to_bool($line["published"]),
357                                                 "comments" => $line["comments"],
358                                                 "author" => $line["author"],
359                                                 "updated" => (int) strtotime($line["updated"]),
360                                                 "content" => $line["content"],
361                                                 "feed_id" => $line["feed_id"],
362                                                 "attachments" => $attachments,
363                                                 "score" => (int)$line["score"],
364                                                 "feed_title" => $line["feed_title"],
365                                                 "note" => $line["note"],
366                                                 "lang" => $line["lang"]
367                                         );
368
369                                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE_API) as $p) {
370                                                 $article = $p->hook_render_article_api(array("article" => $article));
371                                         }
372
373
374                                         array_push($articles, $article);
375
376                                 }
377                         }
378
379                         $this->wrap(self::STATUS_OK, $articles);
380                 } else {
381                         $this->wrap(self::STATUS_ERR, array("error" => 'INCORRECT_USAGE'));
382                 }
383         }
384
385         function getConfig() {
386                 $config = array(
387                         "icons_dir" => ICONS_DIR,
388                         "icons_url" => ICONS_URL);
389
390                 $config["daemon_is_running"] = file_is_locked("update_daemon.lock");
391
392                 $result = $this->dbh->query("SELECT COUNT(*) AS cf FROM
393                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
394
395                 $num_feeds = $this->dbh->fetch_result($result, 0, "cf");
396
397                 $config["num_feeds"] = (int)$num_feeds;
398
399                 $this->wrap(self::STATUS_OK, $config);
400         }
401
402         function updateFeed() {
403                 require_once "include/rssfuncs.php";
404
405                 $feed_id = (int) $this->dbh->escape_string($_REQUEST["feed_id"]);
406
407                 update_rss_feed($feed_id, true);
408
409                 $this->wrap(self::STATUS_OK, array("status" => "OK"));
410         }
411
412         function catchupFeed() {
413                 $feed_id = $this->dbh->escape_string($_REQUEST["feed_id"]);
414                 $is_cat = $this->dbh->escape_string($_REQUEST["is_cat"]);
415
416                 catchup_feed($feed_id, $is_cat);
417
418                 $this->wrap(self::STATUS_OK, array("status" => "OK"));
419         }
420
421         function getPref() {
422                 $pref_name = $this->dbh->escape_string($_REQUEST["pref_name"]);
423
424                 $this->wrap(self::STATUS_OK, array("value" => get_pref($pref_name)));
425         }
426
427         function getLabels() {
428                 //$article_ids = array_filter(explode(",", $this->dbh->escape_string($_REQUEST["article_ids"])), is_numeric);
429
430                 $article_id = (int)$_REQUEST['article_id'];
431
432                 $rv = array();
433
434                 $result = $this->dbh->query("SELECT id, caption, fg_color, bg_color
435                         FROM ttrss_labels2
436                         WHERE owner_uid = '".$_SESSION['uid']."' ORDER BY caption");
437
438                 if ($article_id)
439                         $article_labels = get_article_labels($article_id);
440                 else
441                         $article_labels = array();
442
443                 while ($line = $this->dbh->fetch_assoc($result)) {
444
445                         $checked = false;
446                         foreach ($article_labels as $al) {
447                                 if (feed_to_label_id($al[0]) == $line['id']) {
448                                         $checked = true;
449                                         break;
450                                 }
451                         }
452
453                         array_push($rv, array(
454                                 "id" => (int)label_to_feed_id($line['id']),
455                                 "caption" => $line['caption'],
456                                 "fg_color" => $line['fg_color'],
457                                 "bg_color" => $line['bg_color'],
458                                 "checked" => $checked));
459                 }
460
461                 $this->wrap(self::STATUS_OK, $rv);
462         }
463
464         function setArticleLabel() {
465
466                 $article_ids = array_filter(explode(",", $this->dbh->escape_string($_REQUEST["article_ids"])), is_numeric);
467                 $label_id = (int) $this->dbh->escape_string($_REQUEST['label_id']);
468                 $assign = (bool) $this->dbh->escape_string($_REQUEST['assign']) == "true";
469
470                 $label = $this->dbh->escape_string(label_find_caption(
471                         feed_to_label_id($label_id), $_SESSION["uid"]));
472
473                 $num_updated = 0;
474
475                 if ($label) {
476
477                         foreach ($article_ids as $id) {
478
479                                 if ($assign)
480                                         label_add_article($id, $label, $_SESSION["uid"]);
481                                 else
482                                         label_remove_article($id, $label, $_SESSION["uid"]);
483
484                                 ++$num_updated;
485
486                         }
487                 }
488
489                 $this->wrap(self::STATUS_OK, array("status" => "OK",
490                         "updated" => $num_updated));
491
492         }
493
494         function index($method) {
495                 $plugin = PluginHost::getInstance()->get_api_method(strtolower($method));
496
497                 if ($plugin && method_exists($plugin, $method)) {
498                         $reply = $plugin->$method();
499
500                         $this->wrap($reply[0], $reply[1]);
501
502                 } else {
503                         $this->wrap(self::STATUS_ERR, array("error" => 'UNKNOWN_METHOD', "method" => $method));
504                 }
505         }
506
507         function shareToPublished() {
508                 $title = $this->dbh->escape_string(strip_tags($_REQUEST["title"]));
509                 $url = $this->dbh->escape_string(strip_tags($_REQUEST["url"]));
510                 $content = $this->dbh->escape_string(strip_tags($_REQUEST["content"]));
511
512                 if (Article::create_published_article($title, $url, $content, "", $_SESSION["uid"])) {
513                         $this->wrap(self::STATUS_OK, array("status" => 'OK'));
514                 } else {
515                         $this->wrap(self::STATUS_ERR, array("error" => 'Publishing failed'));
516                 }
517         }
518
519         static function api_get_feeds($cat_id, $unread_only, $limit, $offset, $include_nested = false) {
520
521                         $feeds = array();
522
523                         /* Labels */
524
525                         if ($cat_id == -4 || $cat_id == -2) {
526                                 $counters = getLabelCounters(true);
527
528                                 foreach (array_values($counters) as $cv) {
529
530                                         $unread = $cv["counter"];
531
532                                         if ($unread || !$unread_only) {
533
534                                                 $row = array(
535                                                                 "id" => (int) $cv["id"],
536                                                                 "title" => $cv["description"],
537                                                                 "unread" => $cv["counter"],
538                                                                 "cat_id" => -2,
539                                                         );
540
541                                                 array_push($feeds, $row);
542                                         }
543                                 }
544                         }
545
546                         /* Virtual feeds */
547
548                         if ($cat_id == -4 || $cat_id == -1) {
549                                 foreach (array(-1, -2, -3, -4, -6, 0) as $i) {
550                                         $unread = getFeedUnread($i);
551
552                                         if ($unread || !$unread_only) {
553                                                 $title = getFeedTitle($i);
554
555                                                 $row = array(
556                                                                 "id" => $i,
557                                                                 "title" => $title,
558                                                                 "unread" => $unread,
559                                                                 "cat_id" => -1,
560                                                         );
561                                                 array_push($feeds, $row);
562                                         }
563
564                                 }
565                         }
566
567                         /* Child cats */
568
569                         if ($include_nested && $cat_id) {
570                                 $result = db_query("SELECT
571                                         id, title FROM ttrss_feed_categories
572                                         WHERE parent_cat = '$cat_id' AND owner_uid = " . $_SESSION["uid"] .
573                                 " ORDER BY id, title");
574
575                                 while ($line = db_fetch_assoc($result)) {
576                                         $unread = getFeedUnread($line["id"], true) +
577                                                 getCategoryChildrenUnread($line["id"]);
578
579                                         if ($unread || !$unread_only) {
580                                                 $row = array(
581                                                                 "id" => (int) $line["id"],
582                                                                 "title" => $line["title"],
583                                                                 "unread" => $unread,
584                                                                 "is_cat" => true,
585                                                         );
586                                                 array_push($feeds, $row);
587                                         }
588                                 }
589                         }
590
591                         /* Real feeds */
592
593                         if ($limit) {
594                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
595                         } else {
596                                 $limit_qpart = "";
597                         }
598
599                         if ($cat_id == -4 || $cat_id == -3) {
600                                 $result = db_query("SELECT
601                                         id, feed_url, cat_id, title, order_id, ".
602                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
603                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
604                                                 " ORDER BY cat_id, title " . $limit_qpart);
605                         } else {
606
607                                 if ($cat_id)
608                                         $cat_qpart = "cat_id = '$cat_id'";
609                                 else
610                                         $cat_qpart = "cat_id IS NULL";
611
612                                 $result = db_query("SELECT
613                                         id, feed_url, cat_id, title, order_id, ".
614                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
615                                                 FROM ttrss_feeds WHERE
616                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
617                                                 " ORDER BY cat_id, title " . $limit_qpart);
618                         }
619
620                         while ($line = db_fetch_assoc($result)) {
621
622                                 $unread = getFeedUnread($line["id"]);
623
624                                 $has_icon = feed_has_icon($line['id']);
625
626                                 if ($unread || !$unread_only) {
627
628                                         $row = array(
629                                                         "feed_url" => $line["feed_url"],
630                                                         "title" => $line["title"],
631                                                         "id" => (int)$line["id"],
632                                                         "unread" => (int)$unread,
633                                                         "has_icon" => $has_icon,
634                                                         "cat_id" => (int)$line["cat_id"],
635                                                         "last_updated" => (int) strtotime($line["last_updated"]),
636                                                         "order_id" => (int) $line["order_id"],
637                                                 );
638
639                                         array_push($feeds, $row);
640                                 }
641                         }
642
643                 return $feeds;
644         }
645
646         static function api_get_headlines($feed_id, $limit, $offset,
647                                 $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order,
648                                 $include_attachments, $since_id,
649                                 $search = "", $include_nested = false, $sanitize_content = true,
650                                 $force_update = false, $excerpt_length = 100, $check_first_id = false, $skip_first_id_check = false) {
651
652                         if ($force_update && $feed_id > 0 && is_numeric($feed_id)) {
653                                 // Update the feed if required with some basic flood control
654
655                                 $result = db_query(
656                                         "SELECT cache_images,".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
657                                                 FROM ttrss_feeds WHERE id = '$feed_id'");
658
659                                 if (db_num_rows($result) != 0) {
660                                         $last_updated = strtotime(db_fetch_result($result, 0, "last_updated"));
661                                         $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
662
663                                         if (!$cache_images && time() - $last_updated > 120) {
664                                                 include "rssfuncs.php";
665                                                 update_rss_feed($feed_id, true, true);
666                                         } else {
667                                                 db_query("UPDATE ttrss_feeds SET last_updated = '1970-01-01', last_update_started = '1970-01-01'
668                                                         WHERE id = '$feed_id'");
669                                         }
670                                 }
671                         }
672
673                         /*$qfh_ret = queryFeedHeadlines($feed_id, $limit,
674                                 $view_mode, $is_cat, $search, false,
675                                 $order, $offset, 0, false, $since_id, $include_nested);*/
676
677                         //function queryFeedHeadlines($feed, $limit,
678                         // $view_mode, $cat_view, $search, $search_mode,
679                         // $override_order = false, $offset = 0, $owner_uid = 0, $filter = false, $since_id = 0, $include_children = false,
680                         // $ignore_vfeed_group = false, $override_strategy = false, $override_vfeed = false, $start_ts = false, $check_top_id = false) {
681
682                         $params = array(
683                                 "feed" => $feed_id,
684                                 "limit" => $limit,
685                                 "view_mode" => $view_mode,
686                                 "cat_view" => $is_cat,
687                                 "search" => $search,
688                                 "override_order" => $order,
689                                 "offset" => $offset,
690                                 "since_id" => $since_id,
691                                 "include_children" => $include_nested,
692                                 "check_first_id" => $check_first_id,
693                                 "skip_first_id_check" => $skip_first_id_check
694                         );
695
696                         $qfh_ret = queryFeedHeadlines($params);
697
698                         $result = $qfh_ret[0];
699                         $feed_title = $qfh_ret[1];
700                         $first_id = $qfh_ret[6];
701
702                         $headlines = array();
703
704                         $headlines_header = array(
705                                 'id' => $feed_id,
706                                 'first_id' => $first_id,
707                                 'is_cat' => $is_cat);
708
709                         if (!is_numeric($result)) {
710                                 while ($line = db_fetch_assoc($result)) {
711                                         $line["content_preview"] = truncate_string(strip_tags($line["content"]), $excerpt_length);
712                                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_QUERY_HEADLINES) as $p) {
713                                                 $line = $p->hook_query_headlines($line, $excerpt_length, true);
714                                         }
715
716                                         $is_updated = ($line["last_read"] == "" &&
717                                                 ($line["unread"] != "t" && $line["unread"] != "1"));
718
719                                         $tags = explode(",", $line["tag_cache"]);
720
721                                         $label_cache = $line["label_cache"];
722                                         $labels = false;
723
724                                         if ($label_cache) {
725                                                 $label_cache = json_decode($label_cache, true);
726
727                                                 if ($label_cache) {
728                                                         if ($label_cache["no-labels"] == 1)
729                                                                 $labels = array();
730                                                         else
731                                                                 $labels = $label_cache;
732                                                 }
733                                         }
734
735                                         if (!is_array($labels)) $labels = get_article_labels($line["id"]);
736
737                                         //if (!$tags) $tags = get_article_tags($line["id"]);
738                                         //if (!$labels) $labels = get_article_labels($line["id"]);
739
740                                         $headline_row = array(
741                                                 "id" => (int)$line["id"],
742                                                 "unread" => sql_bool_to_bool($line["unread"]),
743                                                 "marked" => sql_bool_to_bool($line["marked"]),
744                                                 "published" => sql_bool_to_bool($line["published"]),
745                                                 "updated" => (int)strtotime($line["updated"]),
746                                                 "is_updated" => $is_updated,
747                                                 "title" => $line["title"],
748                                                 "link" => $line["link"],
749                                                 "feed_id" => $line["feed_id"],
750                                                 "tags" => $tags,
751                                         );
752
753                                         if ($include_attachments)
754                                                 $headline_row['attachments'] = get_article_enclosures(
755                                                         $line['id']);
756
757                                         if ($show_excerpt)
758                                                 $headline_row["excerpt"] = $line["content_preview"];
759
760                                         if ($show_content) {
761
762                                                 if ($sanitize_content) {
763                                                         $headline_row["content"] = sanitize(
764                                                                 $line["content"],
765                                                                 sql_bool_to_bool($line['hide_images']),
766                                                                 false, $line["site_url"], false, $line["id"]);
767                                                 } else {
768                                                         $headline_row["content"] = $line["content"];
769                                                 }
770                                         }
771
772                                         // unify label output to ease parsing
773                                         if ($labels["no-labels"] == 1) $labels = array();
774
775                                         $headline_row["labels"] = $labels;
776
777                                         $headline_row["feed_title"] = $line["feed_title"] ? $line["feed_title"] :
778                                                 $feed_title;
779
780                                         $headline_row["comments_count"] = (int)$line["num_comments"];
781                                         $headline_row["comments_link"] = $line["comments"];
782
783                                         $headline_row["always_display_attachments"] = sql_bool_to_bool($line["always_display_enclosures"]);
784
785                                         $headline_row["author"] = $line["author"];
786
787                                         $headline_row["score"] = (int)$line["score"];
788                                         $headline_row["note"] = $line["note"];
789                                         $headline_row["lang"] = $line["lang"];
790
791                                         foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_RENDER_ARTICLE_API) as $p) {
792                                                 $headline_row = $p->hook_render_article_api(array("headline" => $headline_row));
793                                         }
794
795                                         array_push($headlines, $headline_row);
796                                 }
797                         } else if (is_numeric($result) && $result == -1) {
798                                 $headlines_header['first_id_changed'] = true;
799                         }
800
801                         return array($headlines, $headlines_header);
802         }
803
804         function unsubscribeFeed() {
805                 $feed_id = (int) $this->dbh->escape_string($_REQUEST["feed_id"]);
806
807                 $result = $this->dbh->query("SELECT id FROM ttrss_feeds WHERE
808                         id = '$feed_id' AND owner_uid = ".$_SESSION["uid"]);
809
810                 if ($this->dbh->num_rows($result) != 0) {
811                         Pref_Feeds::remove_feed($feed_id, $_SESSION["uid"]);
812                         $this->wrap(self::STATUS_OK, array("status" => "OK"));
813                 } else {
814                         $this->wrap(self::STATUS_ERR, array("error" => "FEED_NOT_FOUND"));
815                 }
816         }
817
818         function subscribeToFeed() {
819                 $feed_url = $this->dbh->escape_string($_REQUEST["feed_url"]);
820                 $category_id = (int) $this->dbh->escape_string($_REQUEST["category_id"]);
821                 $login = $this->dbh->escape_string($_REQUEST["login"]);
822                 $password = $this->dbh->escape_string($_REQUEST["password"]);
823
824                 if ($feed_url) {
825                         $rc = subscribe_to_feed($feed_url, $category_id, $login, $password);
826
827                         $this->wrap(self::STATUS_OK, array("status" => $rc));
828                 } else {
829                         $this->wrap(self::STATUS_ERR, array("error" => 'INCORRECT_USAGE'));
830                 }
831         }
832
833         function getFeedTree() {
834                 $include_empty = sql_bool_to_bool($_REQUEST['include_empty']);
835
836                 $pf = new Pref_Feeds($_REQUEST);
837
838                 $_REQUEST['mode'] = 2;
839                 $_REQUEST['force_show_empty'] = $include_empty;
840
841                 if ($pf){
842                         $data = $pf->makefeedtree();
843                         $this->wrap(self::STATUS_OK, array("categories" => $data));
844                 } else {
845                         $this->wrap(self::STATUS_ERR, array("error" =>
846                                 'UNABLE_TO_INSTANTIATE_OBJECT'));
847                 }
848
849         }
850
851         // only works for labels or uncategorized for the time being
852         private function isCategoryEmpty($id) {
853
854                 if ($id == -2) {
855                         $result = $this->dbh->query("SELECT COUNT(*) AS count FROM ttrss_labels2
856                                 WHERE owner_uid = " . $_SESSION["uid"]);
857
858                         return $this->dbh->fetch_result($result, 0, "count") == 0;
859
860                 } else if ($id == 0) {
861                         $result = $this->dbh->query("SELECT COUNT(*) AS count FROM ttrss_feeds
862                                 WHERE cat_id IS NULL AND owner_uid = " . $_SESSION["uid"]);
863
864                         return $this->dbh->fetch_result($result, 0, "count") == 0;
865
866                 }
867
868                 return false;
869         }
870
871
872 }
873
874 ?>