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-rw-r--r--actions/sup.php81
1 files changed, 81 insertions, 0 deletions
diff --git a/actions/sup.php b/actions/sup.php
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+++ b/actions/sup.php
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+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+class SupAction extends Action {
+
+ function handle($args) {
+
+ parent::handle($args);
+
+ $seconds = $this->trimmed('seconds');
+
+ if (!$seconds) {
+ $seconds = 15;
+ }
+
+ $updates = $this->get_updates($seconds);
+
+ header('Content-Type: application/json; charset=utf-8');
+
+ print json_encode(array('updated_time' => date('c'),
+ 'since_time' => date('c', time() - $seconds),
+ 'available_periods' => $this->available_periods(),
+ 'period' => $seconds,
+ 'updates' => $updates));
+ }
+
+ function available_periods() {
+ static $periods = array(86400, 43200, 21600, 7200,
+ 3600, 1800, 600, 300, 120,
+ 60, 30, 15);
+ $available = array();
+ foreach ($periods as $period) {
+ $available[$period] = common_local_url('sup',
+ array('seconds' => $period));
+ }
+
+ return $available;
+ }
+
+ function get_updates($seconds) {
+ $notice = new Notice();
+
+ # XXX: cache this. Depends on how big this protocol becomes;
+ # Re-doing this query every 15 seconds isn't the end of the world.
+
+ $notice->query('SELECT profile_id, max(id) AS max_id ' .
+ 'FROM notice ' .
+ 'WHERE created > (now() - ' . $seconds . ') ' .
+ 'GROUP BY profile_id');
+
+ $updates = array();
+
+ while ($notice->fetch()) {
+ $updates[] = array($notice->profile_id, $notice->max_id);
+ }
+
+ return $updates;
+ }
+
+ function is_readonly() {
+ return true;
+ }
+}