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