null, 'status' => 1, 'content' => ['error' => "NOT_LOGGED_IN"], ]; public function __construct() { } public function dispatch(\JKingWeb\Arsse\REST\Request $req): Response { if ($req->method != "POST") { // only POST requests are allowed return new Response(405, self::FATAL_ERR, "application/json", ["Allow: POST"]); } if ($req->body) { // only JSON entities are allowed if (!preg_match("<^application/json\b|^$>", $req->type)) { return new Response(415, self::FATAL_ERR, "application/json", ['Accept: application/json']); } $data = @json_decode($req->body, true); if (json_last_error() != \JSON_ERROR_NONE || !is_array($data)) { // non-JSON input indicates an error return new Response(400, self::FATAL_ERR); } // layer input over defaults $data = array_merge([ 'seq' => 0, 'op' => "", 'sid' => null, ], $data); try { if (strtolower((string) $data['op']) != "login") { // unless logging in, a session identifier is required $this->resumeSession($data['sid']); } $method = "op".ucfirst($data['op']); if (!method_exists($this, $method)) { // because method names are supposed to be case insensitive, we need to try a bit harder to match $method = strtolower($method); $map = get_class_methods($this); $map = array_combine(array_map("strtolower", $map), $map); if (!array_key_exists($method, $map)) { // if the method really doesn't exist, throw an exception throw new Exception("UNKNWON_METHOD", ['method' => $data['op']]); } // otherwise retrieve the correct camelCase and continue $method = $map[$method]; } return new Response(200, [ 'seq' => $data['seq'], 'status' => 0, 'content' => $this->$method($data), ]); } catch (Exception $e) { return new Response(200, [ 'seq' => $data['seq'], 'status' => 1, 'content' => $e->getData(), ]); } catch (AbstractException $e) { return new Response(500); } } else { // absence of a request body indicates an error return new Response(400, self::FATAL_ERR); } } protected function resumeSession($id): bool { try { // verify the supplied session is valid $s = Arsse::$db->sessionResume((string) $id); } catch (\JKingWeb\Arsse\User\ExceptionSession $e) { // if not throw an exception throw new Exception("NOT_LOGGED_IN"); } // resume the session (currently only the user name) Arsse::$user->id = $s['user']; return true; } public function opGetApiLevel(array $data): array { return ['level' => self::LEVEL]; } public function opGetVersion(array $data): array { return [ 'version' => self::VERSION, 'arsse_version' => Arsse::VERSION, ]; } public function opLogin(array $data): array { if (isset($data['user']) && isset($data['password']) && Arsse::$user->auth($data['user'], $data['password'])) { $id = Arsse::$db->sessionCreate($data['user']); return [ 'session_id' => $id, 'api_level' => self::LEVEL ]; } else { throw new Exception("LOGIN_ERROR"); } } public function opLogout(array $data): array { Arsse::$db->sessionDestroy(Arsse::$user->id, $data['sid']); return ['status' => "OK"]; } public function opIsLoggedIn(array $data): array { // session validity is already checked by the dispatcher, so we need only return true return ['status' => true]; } public function opGetConfig(array $data): array { return [ 'icons_dir' => "feed-icons", 'icons_url' => "feed-icons", 'daemon_is_running' => Service::hasCheckedIn(), 'num_feeds' => Arsse::$db->subscriptionCount(Arsse::$user->id), ]; } public function opGetUnread(array $data): array { // simply sum the unread count of each subscription $out = 0; foreach (Arsse::$db->subscriptionList(Arsse::$user->id) as $sub) { $out += $sub['unread']; } return ['unread' => $out]; } public function opGetCounters(array $data): array { $user = Arsse::$user->id; $starred = Arsse::$db->articleStarred($user); $fresh = Arsse::$db->articleCount($user, (new Context)->unread(true)->modifiedSince(Date::sub("PT24H"))); $countAll = 0; $countSubs = 0; $feeds = []; $labels = []; // do a first pass on categories: add the ID to a lookup table and set the unread counter to zero $categories = Arsse::$db->folderList($user)->getAll(); $catmap = []; for ($a = 0; $a < sizeof($categories); $a++) { $catmap[(int) $categories[$a]['id']] = $a; $categories[$a]['counter'] = 0; } // add the "Uncategorized" and "Labels" virtual categories to the list $catmap[0] = sizeof($categories); $categories[] = ['id' => 0, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Uncategorized"), 'parent' => 0, 'children' => 0, 'counter' => 0]; $catmap[-2] = sizeof($categories); $categories[] = ['id' => -2, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Labels"), 'parent' => 0, 'children' => 0, 'counter' => 0]; // prepare data for each subscription; we also add unread counts for their host categories foreach (Arsse::$db->subscriptionList($user) as $f) { if ($f['unread']) { // add the feed to the list of feeds $feeds[] = ['id' => $f['id'], 'updated' => Date::transform($f['updated'], "iso8601", "sql"),'counter' => $f['unread'], 'has_img' => (int) (strlen((string) $f['favicon']) > 0)]; // add the feed's unread count to the global unread count $countAll += $f['unread']; // add the feed's unread count to its category unread count $categories[$catmap[(int) $f['folder']]]['counter'] += $f['unread']; } // increment the global feed count $countSubs += 1; } // prepare data for each non-empty label foreach (Arsse::$db->labelList($user, false) as $l) { $unread = $l['articles'] - $l['read']; $labels[] = ['id' => $this->labelOut($l['id']), 'counter' => $unread, 'auxcounter' => $l['articles']]; $categories[$catmap[-2]]['counter'] += $unread; } // do a second pass on categories, summing descendant unread counts for ancestors, pruning categories with no unread, and building a final category list $cats = []; while ($categories) { foreach ($categories as $c) { if ($c['children']) { // only act on leaf nodes continue; } if ($c['parent']) { // if the category has a parent, add its counter to the parent's counter, and decrement the parent's child count $categories[$catmap[$c['parent']]]['counter'] += $c['counter']; $categories[$catmap[$c['parent']]]['children'] -= 1; } if ($c['counter']) { // if the category's counter is non-zero, add the category to the output list $cats[] = ['id' => $c['id'], 'kind' => "cat", 'counter' => $c['counter']]; } // remove the category from the input list unset($categories[$catmap[$c['id']]]); } } // prepare data for the virtual feeds and other counters $special = [ ['id' => "global-unread", 'counter' => $countAll], //this should not count archived articles, but we do not have an archive ['id' => "subscribed-feeds", 'counter' => $countSubs], ['id' => 0, 'counter' => 0, 'auxcounter' => 0], // Archived articles ['id' => -1, 'counter' => $starred['unread'], 'auxcounter' => $starred['total']], // Starred articles ['id' => -2, 'counter' => 0, 'auxcounter' => 0], // Published articles ['id' => -3, 'counter' => $fresh, 'auxcounter' => 0], // Fresh articles ['id' => -4, 'counter' => $countAll, 'auxcounter' => 0], // All articles ]; return array_merge($special, $labels, $feeds, $cats); } public function opGetCategories(array $data): array { // normalize input $all = isset($data['include_empty']) ? ValueInfo::bool($data['include_empty'], false) : false; $read = !(isset($data['unread_only']) ? ValueInfo::bool($data['unread_only'], false) : false); $deep = !(isset($data['enable_nested']) ? ValueInfo::bool($data['enable_nested'], false) : false); $user = Arsse::$user->id; // for each category, add the ID to a lookup table, set the number of unread to zero, and assign an increasing order index $cats = Arsse::$db->folderList($user, null, $deep)->getAll(); $map = []; for ($a = 0; $a < sizeof($cats); $a++) { $map[$cats[$a]['id']] = $a; $cats[$a]['unread'] = 0; $cats[$a]['order'] = $a + 1; } // add the "Uncategorized", "Special", and "Labels" virtual categories to the list $map[0] = sizeof($cats); $cats[] = ['id' => 0, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Uncategorized"), 'children' => 0, 'unread' => 0, 'feeds' => 0]; $map[-1] = sizeof($cats); $cats[] = ['id' => -1, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Special"), 'children' => 0, 'unread' => 0, 'feeds' => 6]; $map[-2] = sizeof($cats); $cats[] = ['id' => -2, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Labels"), 'children' => 0, 'unread' => 0, 'feeds' => 0]; // for each subscription, add the unread count to its category, and increment the category's feed count $subs = Arsse::$db->subscriptionList($user); foreach ($subs as $sub) { // note we use top_folder if we're in "nested" mode $f = $map[(int) ($deep ? $sub['folder'] : $sub['top_folder'])]; $cats[$f]['unread'] += $sub['unread']; if (!$cats[$f]['id']) { $cats[$f]['feeds'] += 1; } } // for each label, add the unread count to the labels category, and increment the labels category's feed count $labels = Arsse::$db->labelList($user); $f = $map[-2]; foreach ($labels as $label) { $cats[$f]['unread'] += $label['articles'] - $label['read']; $cats[$f]['feeds'] += 1; } // get the unread counts for the special feeds // FIXME: this is pretty inefficient $f = $map[-1]; $cats[$f]['unread'] += Arsse::$db->articleStarred($user)['unread']; // starred $cats[$f]['unread'] += Arsse::$db->articleCount($user, (new Context)->unread(true)->modifiedSince(Date::sub("PT24H"))); // fresh if (!$read) { // if we're only including unread entries, remove any categories with zero unread items (this will by definition also exclude empties) $count = sizeof($cats); for ($a = 0; $a < $count; $a++) { if (!$cats[$a]['unread']) { unset($cats[$a]); } } $cats = array_values($cats); } elseif (!$all) { // otherwise if we're not including empty entries, remove categories with no children and no feeds $count = sizeof($cats); for ($a = 0; $a < $count; $a++) { if (($cats[$a]['children'] + $cats[$a]['feeds']) < 1) { unset($cats[$a]); } } $cats = array_values($cats); } // transform the result and return $out = []; for ($a = 0; $a < sizeof($cats); $a++) { $out[] = $this->fieldMapNames($cats[$a], [ 'id' => "id", 'title' => "name", 'unread' => "unread", 'order_id' => "order", ]); } return $out; } public function opAddCategory(array $data) { $in = [ 'name' => isset($data['caption']) ? $data['caption'] : "", 'parent' => isset($data['parent_id']) ? $data['parent_id'] : null, ]; if (!$in['parent']) { $in['parent'] = null; } try { return Arsse::$db->folderAdd(Arsse::$user->id, $in); } catch (ExceptionInput $e) { switch ($e->getCode()) { case 10236: // folder already exists // retrieve the ID of the existing folder; duplicating a folder silently returns the existing one $folders = Arsse::$db->folderList(Arsse::$user->id, $in['parent'], false); foreach ($folders as $folder) { if ($folder['name']==$in['name']) { return (int) $folder['id']; } } return false; // @codeCoverageIgnore case 10235: // parent folder does not exist; this returns false as an ID return false; default: // other errors related to input throw new Exception("INCORRECT_USAGE"); } } } public function opRemoveCategory(array $data) { if (!isset($data['category_id']) || !ValueInfo::id($data['category_id'])) { // if the folder is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } try { // attempt to remove the folder Arsse::$db->folderRemove(Arsse::$user->id, (int) $data['category_id']); } catch(ExceptionInput $e) { // ignore all errors } return null; } public function opMoveCategory(array $data) { if (!isset($data['category_id']) || !ValueInfo::id($data['category_id']) || !isset($data['parent_id']) || !ValueInfo::id($data['parent_id'], true)) { // if the folder or parent is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } $in = [ 'parent' => (int) $data['parent_id'], ]; try { // try to move the folder Arsse::$db->folderPropertiesSet(Arsse::$user->id, (int) $data['category_id'], $in); } catch(ExceptionInput $e) { // ignore all errors } return null; } public function opRenameCategory(array $data) { if (!isset($data['category_id']) || !ValueInfo::id($data['category_id']) || !isset($data['caption'])) { // if the folder is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } $info = ValueInfo::str($data['caption']); if (!($info & ValueInfo::VALID) || ($info & ValueInfo::EMPTY) || ($info & ValueInfo::WHITE)) { // if the folder name is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } $in = [ 'name' => (string) $data['caption'], ]; try { // try to rename the folder Arsse::$db->folderPropertiesSet(Arsse::$user->id, (int) $data['category_id'], $in); } catch(ExceptionInput $e) { // ignore all errors } return null; } protected function feedError(FeedException $e): array { // N.B.: we don't return code 4 (multiple feeds discovered); we simply pick the first feed discovered switch ($e->getCode()) { case 10502: // invalid URL return ['code' => 2, 'message' => $e->getMessage()]; case 10521: // no feeds discovered return ['code' => 3, 'message' => $e->getMessage()]; case 10511: case 10512: case 10522: // malformed data return ['code' => 6, 'message' => $e->getMessage()]; default: // unable to download return ['code' => 5, 'message' => $e->getMessage()]; } } public function opSubscribeToFeed(array $data): array { if (!isset($data['feed_url']) || !(ValueInfo::str($data['feed_url']) & ValueInfo::VALID)) { // if the feed URL is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } // normalize input data if ( (isset($data['category_id']) && !ValueInfo::id($data['category_id'], true)) || (isset($data['login']) && !(ValueInfo::str($data['login']) & ValueInfo::VALID)) || (isset($data['password']) && !(ValueInfo::str($data['password']) & ValueInfo::VALID)) ) { // if the category is not a valid ID or the feed username or password are not convertible to strings, also throw an error throw new Exception("INCORRECT_USAGE"); } $url = (string) $data['feed_url']; $folder = isset($data['category_id']) ? (int) $data['category_id'] : null; $fetchUser = isset($data['login']) ? (string) $data['login'] : ""; $fetchPassword = isset($data['password']) ? (string) $data['password'] : ""; // check to make sure the requested folder exists before doing anything else, if one is specified if ($folder) { try { Arsse::$db->folderPropertiesGet(Arsse::$user->id, $folder); } catch (ExceptionInput $e) { // folder does not exist: TT-RSS is a bit weird in this case and returns a feed ID of 0. It checks the feed first, but we do not return ['code' => 1, 'feed_id' => 0]; } } try { $id = Arsse::$db->subscriptionAdd(Arsse::$user->id, $url, $fetchUser, $fetchPassword); } catch (ExceptionInput $e) { // subscription already exists; retrieve the existing ID and return that with the correct code for ($triedDiscovery = 0; $triedDiscovery <= 1; $triedDiscovery++) { $subs = Arsse::$db->subscriptionList(Arsse::$user->id); $id = false; foreach ($subs as $sub) { if ($sub['url']===$url) { $id = (int) $sub['id']; break; } } if ($id) { break; } elseif (!$triedDiscovery) { // if we didn't find the ID we perform feed discovery for the next iteration; this is pretty messy: discovery ends up being done twice because it was already done in $db->subscriptionAdd() try { $url = Feed::discover($url, $fetchUser, $fetchPassword); } catch(FeedException $e) { // feed errors (handled above) return $this->feedError($e); } } } return ['code' => 0, 'feed_id' => $id]; } catch (FeedException $e) { // feed errors (handled above) return $this->feedError($e); } // if all went well, move the new subscription to the requested folder (if one was requested) try { Arsse::$db->subscriptionPropertiesSet(Arsse::$user->id, $id, ['folder' => $folder]); } catch (ExceptionInput $e) { // ignore errors } return ['code' => 1, 'feed_id' => $id]; } public function opUnsubscribeFeed(array $data): array { if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id'])) { // if the feed is invalid, throw an error throw new Exception("FEED_NOT_FOUND"); } try { // attempt to remove the feed Arsse::$db->subscriptionRemove(Arsse::$user->id, (int) $data['feed_id']); } catch(ExceptionInput $e) { throw new Exception("FEED_NOT_FOUND"); } return ['status' => "OK"]; } public function opMoveFeed(array $data) { if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id']) || !isset($data['category_id']) || !ValueInfo::id($data['category_id'], true)) { // if the feed or folder is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } $in = [ 'folder' => (int) $data['category_id'], ]; try { // try to move the feed Arsse::$db->subscriptionPropertiesSet(Arsse::$user->id, (int) $data['feed_id'], $in); } catch(ExceptionInput $e) { // ignore all errors } return null; } public function opRenameFeed(array $data) { if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id']) || !isset($data['caption'])) { // if the feed is invalid or there is no caption, throw an error throw new Exception("INCORRECT_USAGE"); } $info = ValueInfo::str($data['caption']); if (!($info & ValueInfo::VALID) || ($info & ValueInfo::EMPTY) || ($info & ValueInfo::WHITE)) { // if the feed name is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } $in = [ 'name' => (string) $data['caption'], ]; try { // try to rename the feed Arsse::$db->subscriptionPropertiesSet(Arsse::$user->id, (int) $data['feed_id'], $in); } catch(ExceptionInput $e) { // ignore all errors } return null; } public function opUpdateFeed(array $data): array { if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id'])) { // if the feed is invalid, throw an error throw new Exception("INCORRECT_USAGE"); } try { Arsse::$db->feedUpdate(Arsse::$db->subscriptionPropertiesGet(Arsse::$user->id, (int) $data['feed_id'])['feed']); } catch(ExceptionInput $e) { throw new Exception("FEED_NOT_FOUND"); } return ['status' => "OK"]; } protected function labelIn($id): int { if (!(ValueInfo::int($id) & ValueInfo::NEG) || $id > (-1 - self::LABEL_OFFSET)) { throw new Exception("INCORRECT_USAGE"); } return (abs($id) - self::LABEL_OFFSET); } protected function labelOut(int $id): int { return ($id * -1 - self::LABEL_OFFSET); } public function opGetLabels(array $data): array { // this function doesn't complain about invalid article IDs $article = (isset($data['article_id']) && ValueInfo::id($data['article_id'])) ? (int) $data['article_id'] : 0; try { $list = $article ? Arsse::$db->articleLabelsGet(Arsse::$user->id, $article) : []; } catch (ExceptionInput $e) { $list = []; } $out = []; foreach (Arsse::$db->labelList(Arsse::$user->id) as $l) { $out[] = [ 'id' => $this->labelOut($l['id']), 'caption' => $l['name'], 'fg_color' => "", 'bg_color' => "", 'checked' => in_array($l['id'], $list), ]; } return $out; } public function opAddLabel(array $data) { $in = [ 'name' => isset($data['caption']) ? $data['caption'] : "", ]; try { return $this->labelOut(Arsse::$db->labelAdd(Arsse::$user->id, $in)); } catch (ExceptionInput $e) { switch ($e->getCode()) { case 10236: // label already exists // retrieve the ID of the existing label; duplicating a label silently returns the existing one return $this->labelOut(Arsse::$db->labelPropertiesGet(Arsse::$user->id, $in['name'], true)['id']); default: // other errors related to input throw new Exception("INCORRECT_USAGE"); } } } public function opRemoveLabel(array $data) { // normalize the label ID; missing or invalid IDs are rejected $id = $this->labelIn(isset($data['label_id']) ? $data['label_id'] : 0); try { // attempt to remove the label Arsse::$db->labelRemove(Arsse::$user->id, $id); } catch(ExceptionInput $e) { // ignore all errors } return null; } public function opRenameLabel(array $data) { // normalize input; missing or invalid IDs are rejected $id = $this->labelIn(isset($data['label_id']) ? $data['label_id'] : 0); $name = isset($data['caption']) ? $data['caption'] : ""; try { // try to rename the folder Arsse::$db->labelPropertiesSet(Arsse::$user->id, $id, ['name' => $name]); } catch(ExceptionInput $e) { if ($e->getCode()==10237) { // if the supplied ID was invalid, report an error; other errors are to be ignored throw new Exception("INCORRECT_USAGE"); } } return null; } }