* License: GPL * * plugin_tb_action() action * plugin_tb_save($url, $tb_id) Save or update TrackBack Ping data * plugin_tb_return($rc, $msg) Return TrackBack ping via HTTP/XML * plugin_tb_mode_rss($tb_id) ?__mode=rss * plugin_tb_mode_view($tb_id) ?__mode=view */ switch(LANG){ case 'ja': define('PLUGIN_TB_LANGUAGE', 'ja-Jp'); break; default : define('PLUGIN_TB_LANGUAGE', 'en-us'); break; } function plugin_tb_action() { global $vars, $trackback; if (isset($vars['url'])) { // Receive and save a TrackBack Ping (both GET and POST) $url = $vars['url']; $tb_id = isset($vars['tb_id']) ? $vars['tb_id'] : ''; plugin_tb_save($url, $tb_id); // Send a response (and exit) } else { if ($trackback && isset($vars['__mode']) && isset($vars['tb_id'])) { // Show TrackBacks received (and exit) switch ($vars['__mode']) { case 'rss' : plugin_tb_mode_rss($vars['tb_id']); break; case 'view': plugin_tb_mode_view($vars['tb_id']); break; } } // Show List of pages that TrackBacks reached $pages = get_existpages(TRACKBACK_DIR, '.txt'); if (! empty($pages)) { return array('msg'=>'trackback list', 'body'=>page_list($pages, 'read', FALSE)); } else { return array('msg'=>'', 'body'=>''); } } } // Save or update TrackBack Ping data function plugin_tb_save($url, $tb_id) { global $vars, $trackback; static $fields = array( /* UTIME, */ 'url', 'title', 'excerpt', 'blog_name'); $die = ''; if (! $trackback) $die .= 'TrackBack feature disabled. '; if ($url == '') $die .= 'URL parameter is not set. '; if ($tb_id == '') $die .= 'TrackBack Ping ID is not set. '; if ($die != '') plugin_tb_return(1, $die); if (! file_exists(TRACKBACK_DIR)) plugin_tb_return(1, 'No such directory: TRACKBACK_DIR'); if (! is_writable(TRACKBACK_DIR)) plugin_tb_return(1, 'Permission denied: TRACKBACK_DIR'); $page = tb_id2page($tb_id); if ($page === FALSE) plugin_tb_return(1, 'TrackBack ID is invalid.'); // URL validation (maybe worse of processing time limit) $result = http_request($url, 'HEAD'); if ($result['rc'] !== 200) plugin_tb_return(1, 'URL is fictitious.'); // Update TrackBack Ping data $filename = tb_get_filename($page); $data = tb_get($filename); $items = array(UTIME); foreach ($fields as $key) { $value = isset($vars[$key]) ? $vars[$key] : ''; if (preg_match('/[,"' . "\n\r" . ']/', $value)) $value = '"' . str_replace('"', '""', $value) . '"'; $items[$key] = $value; } $data[rawurldecode($items['url'])] = $items; $fp = fopen($filename, 'w'); set_file_buffer($fp, 0); flock($fp, LOCK_EX); rewind($fp); foreach ($data as $line) { $line = preg_replace('/[\r\n]/s', '', $line); // One line, one ping fwrite($fp, join(',', $line) . "\n"); } flock($fp, LOCK_UN); fclose($fp); plugin_tb_return(0); // Return OK } // Return TrackBack ping via HTTP/XML function plugin_tb_return($rc, $msg = '') { pkwk_common_headers(); header('Content-Type: text/xml'); echo ''; echo ''; echo ' ' . $rc . ''; if ($rc !== 0) echo '' . $msg . ''; echo ''; exit; } // ?__mode=rss function plugin_tb_mode_rss($tb_id) { global $script, $vars, $entity_pattern; $page = tb_id2page($tb_id); if ($page === FALSE) return FALSE; $items = ''; foreach (tb_get(tb_get_filename($page)) as $arr) { // _utime_, title, excerpt, _blog_name_ array_shift($arr); // Cut utime list ($url, $title, $excerpt) = array_map( create_function('$a', 'return htmlspecialchars($a);'), $arr); $items .= << $title $url $excerpt EOD; } $title = htmlspecialchars($page); $link = $script . '?' . rawurlencode($page); $vars['page'] = $page; $excerpt = strip_htmltag(convert_html(get_source($page))); $excerpt = preg_replace("/&$entity_pattern;/", '', $excerpt); $excerpt = mb_strimwidth(preg_replace("/[\r\n]/", ' ', $excerpt), 0, 255, '...'); $lang = PLUGIN_TB_LANGUAGE; $rc = << 0 $title $link $excerpt $lang$items EOD; pkwk_common_headers(); header('Content-Type: text/xml'); echo mb_convert_encoding($rc, 'UTF-8', SOURCE_ENCODING); exit; } // ?__mode=view function plugin_tb_mode_view($tb_id) { global $script, $page_title; global $_tb_title, $_tb_header, $_tb_entry, $_tb_refer, $_tb_date; global $_tb_header_Excerpt, $_tb_header_Weblog, $_tb_header_Tracked; $page = tb_id2page($tb_id); if ($page === FALSE) return FALSE; $r_page = rawurlencode($page); $tb_title = sprintf($_tb_title, $page); $tb_refer = sprintf($_tb_refer, '\'' . $page . '\'', '' . $page_title . ''); $data = tb_get(tb_get_filename($page)); // Sort: The first is the latest usort($data, create_function('$a,$b', 'return $b[0] - $a[0];')); $tb_body = ''; foreach ($data as $x) { if (count($x) != 5) continue; // Ignore incorrect record list ($time, $url, $title, $excerpt, $blog_name) = $x; if ($title == '') $title = 'no title'; $time = date($_tb_date, $time + LOCALZONE); // May 2, 2003 11:25 AM $tb_body .= << $title
$_tb_header_Excerpt $excerpt
$_tb_header_Weblog $blog_name
$_tb_header_Tracked $time EOD; } $msg = << $tb_title
$_tb_entry
$script?tb_id=$tb_id

$tb_refer
$tb_body
EOD; pkwk_common_headers(); // BugTrack/466 Care for MSIE trouble // Logically correct, but MSIE will treat the data like 'file downloading' //header('Content-type: application/xhtml+xml; charset=UTF-8'); header('Content-type: text/html; charset=UTF-8'); // Works well echo mb_convert_encoding($msg, 'UTF-8', SOURCE_ENCODING); exit; } ?>