]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?«»“”‘’]))'; return preg_replace_callback("#$pattern#i", function($matches) { $input = $matches[0]; $url = preg_match('!^https?://!i', $input) ? $input : "http://$input"; return '' . "$input"; }, $text); } function db_insert($message, $timestamp=NOW) { global $db; if(empty($db)) return false; $statement = $db->prepare('INSERT INTO posts (post_content, post_timestamp) VALUES (:post_content, :post_timestamp)'); $statement->bindParam(':post_content', $message, PDO::PARAM_STR); $statement->bindParam(':post_timestamp', $timestamp, PDO::PARAM_INT); $statement->execute(); return $db->lastInsertId(); } function db_select_post($id=0) { global $db; if(empty($db)) return false; if($id === 0) return false; $statement = $db->prepare('SELECT * FROM posts WHERE id = :id LIMIT 1'); $statement->bindParam(':id', $id, PDO::PARAM_INT); $statement->execute(); $row = $statement->fetch(PDO::FETCH_ASSOC); return (!empty($row)) ? $row : false; } function db_select_posts($from=NOW, $amount=10, $sort='desc', $page=1) { global $config; global $db; if(empty($db)) return false; if($sort !== 'desc') $sort = 'asc'; $offset = ($page-1)*$config['posts_per_page']; $statement = $db->prepare('SELECT * FROM posts WHERE post_timestamp < :post_timestamp ORDER BY id '.$sort.' LIMIT :limit OFFSET :page'); $statement->bindParam(':post_timestamp', $from, PDO::PARAM_INT); $statement->bindParam(':limit', $amount, PDO::PARAM_INT); $statement->bindParam(':page', $offset, PDO::PARAM_INT); $statement->execute(); $rows = $statement->fetchAll(PDO::FETCH_ASSOC); return (!empty($rows)) ? $rows : false; } /* function that pings the official micro.blog endpoint for feed refreshes */ function ping_microblog() { global $config; $ping_url = 'https://micro.blog/ping'; $feed_url = $config['url'].'/feed.json'; $ch = curl_init($ping_url); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, 'url='.urlencode($feed_url)); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_NOBODY, true); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($ch); $status = curl_getinfo($ch, CURLINFO_HTTP_CODE); return ($status == 200) ? true : false; } function rebuild_feed($amount=10) { global $config; $feed = array( 'version' => 'https://jsonfeed.org/version/1', 'title' => 'status updates by '.$config['microblog_account'], 'description' => '', 'home_page_url' => $config['url'], 'feed_url' => $config['url'].'/feed.json', 'user_comment' => '', 'favicon' => '', 'author' => array('name' => $config['microblog_account']), 'items' => array() ); // make a timezone string for dates (is this dumb?) $timezone_offset = timezone_offset_get(timezone_open('UTC'), new DateTime())/60/60; // this is probably incorrect $timezone_offset_string = (is_int($timezone_offset) && $timezone_offset >= 0) ? '+'.str_pad($timezone_offset, 2, '0', STR_PAD_LEFT).':00' : '-'.str_pad($timezone_offset, 2, '0', STR_PAD_LEFT).':00'; $posts = db_select_posts(NOW+60, $amount, 'desc'); foreach($posts as $post) { $feed['items'][] = array( 'id' => $config['url'].'/'.$post['id'], 'url' => $config['url'].'/'.$post['id'], 'title' => '', 'content_html' => $post['post_content'], 'date_published' => strftime('%Y-%m-%dT%H:%M:%S', $post['post_timestamp']).$timezone_offset_string ); } if(file_put_contents(ROOT.DS.'feed.json', json_encode($feed, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES))) { return true; } else return false; } function twitter_post_status($status='') { global $config; require_once(ROOT.DS.'twitter_api.php'); if(empty($status)) return array('errors' => 1); if(empty($config['twitter']['oauth_access_token']) || empty($config['twitter']['oauth_access_token_secret']) || empty($config['twitter']['consumer_key']) || empty($config['twitter']['consumer_secret'])) return array('errors' => 2); $url = 'https://api.twitter.com/1.1/statuses/update.json'; $postfields = array( 'status' => $status, 'trim_user' => 1 ); $twitter = new TwitterAPIExchange($config['twitter']); return $twitter->buildOauth($url, 'POST')->setPostfields($postfields)->performRequest(); }