<?php
-// $Id: tb.inc.php,v 1.4 2003/08/20 10:55:36 arino Exp $
+// $Id: tb.inc.php,v 1.21 2005/06/15 15:57:11 henoheno Exp $
/*
- * PukiWiki TrackBack ¥×¥í¥°¥é¥à
- * (C) 2003, Katsumi Saito <katsumi@jo1upk.ymt.prug.or.jp>
+ * PukiWiki/TrackBack: TrackBack Ping receiver and viewer
+ * (C) 2003-2005 PukiWiki Developers Team
+ * (C) 2003 Katsumi Saito <katsumi@jo1upk.ymt.prug.or.jp>
* License: GPL
*
- * plugin_tb_action() action
- * tb_save() TrackBack Ping ¥Ç¡¼¥¿Êݸ(¹¹¿·)
- * tb_xml_msg($rc,$msg) XML ·ë²Ì½ÐÎÏ
- * tb_mode_rss($tb_id) ?__mode=rss ½èÍý
- * tb_mode_view($tb_id) ?__mode=view ½èÍý
+ * plugin_tb_action() action
+ * plugin_tb_save($url, $tb_id) Save or update TrackBack Ping data
+ * plugin_tb_output_response($rc, $msg) Show a response code of the ping via HTTP/XML (then exit)
+ * plugin_tb_output_rsslist($tb_id) Show pings for the page via RSS
+ * plugin_tb_output_htmllist($tb_id) Show pings for the page via XHTML
*/
+switch(LANG){
+case 'ja': define('PLUGIN_TB_LANGUAGE', 'ja-jp'); break;
+default : define('PLUGIN_TB_LANGUAGE', 'en-us'); break;
+}
+
+// ----
+
+define('PLUGIN_TB_ERROR', 1);
+define('PLUGIN_TB_NOERROR', 0);
+
function plugin_tb_action()
{
- global $script,$vars,$post,$trackback;
-
- // POST: TrackBack Ping ¤òÊݸ¤¹¤ë
- if (!empty($post['url']))
- {
- tb_save();
- }
-
- if ($trackback and !empty($vars['__mode']) and !empty($vars['tb_id']))
- {
- switch ($vars['__mode'])
- {
- case 'rss':
- tb_mode_rss($vars['tb_id']);
- break;
- case 'view':
- tb_mode_view($vars['tb_id']);
- break;
+ global $trackback, $vars;
+
+ if ($trackback && isset($vars['url'])) {
+ // Receive and save a TrackBack Ping (both GET and POST)
+ $url = $vars['url'];
+ $tb_id = isset($vars['tb_id']) ? $vars['tb_id'] : '';
+ list($error, $message) = plugin_tb_save($url, $tb_id);
+
+ // Output the response
+ plugin_tb_output_response($error, $message);
+ exit;
+
+ } else {
+ if ($trackback && isset($vars['__mode']) && isset($vars['tb_id'])) {
+ // Show TrackBacks received (and exit)
+ switch ($vars['__mode']) {
+ case 'rss' : plugin_tb_output_rsslist($vars['tb_id']); break;
+ case 'view': plugin_tb_output_htmllist($vars['tb_id']); break;
+ }
+ exit;
+
+ } else {
+ // 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'=>'');
+ }
}
}
- $pages = get_existpages(TRACKBACK_DIR,'.txt');
-
- if (count($pages) == 0)
- {
- return array('msg'=>'','body'=>'');
- }
-
- return array(
- 'msg' => 'trackback list',
- 'body' => page_list($pages,'read',FALSE)
- );
}
-// TrackBack Ping ¥Ç¡¼¥¿Êݸ(¹¹¿·)
-function tb_save()
+// Save or update TrackBack Ping data
+function plugin_tb_save($url, $tb_id)
{
- global $script,$post,$vars,$trackback;
- static $fields = array(/* UTIME, */'url','title','excerpt','blog_name');
-
- // µö²Ä¤·¤Æ¤¤¤Ê¤¤¤Î¤Ë¸Æ¤Ð¤ì¤¿¾ì¹ç¤ÎÂбþ
- if (!$trackback)
- {
- tb_xml_msg(1,'Feature inactive.');
- }
- // TrackBack Ping ¤Ë¤ª¤±¤ë URL ¥Ñ¥é¥á¡¼¥¿¤Ïɬ¿Ü¤Ç¤¢¤ë¡£
- if (empty($post['url']))
- {
- tb_xml_msg(1,'It is an indispensable parameter. URL is not set up.');
- }
- // Query String ¤òÆÀ¤ë
- if (empty($vars['tb_id']))
- {
- tb_xml_msg(1,'TrackBack Ping URL is inaccurate.');
- }
-
- $url = $post['url'];
- $tb_id = $vars['tb_id'];
-
- // ¥Ú¡¼¥¸Â¸ºß¥Á¥§¥Ã¥¯
+ 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 != '') return array(PLUGIN_TB_ERROR, $die);
+
+ if (! file_exists(TRACKBACK_DIR)) return array(PLUGIN_TB_ERROR, 'No such directory: TRACKBACK_DIR');
+ if (! is_writable(TRACKBACK_DIR)) return array(PLUGIN_TB_ERROR, 'Permission denied: TRACKBACK_DIR');
+
$page = tb_id2page($tb_id);
- if ($page === FALSE)
- {
- tb_xml_msg(1,'TrackBack ID is invalid.');
- }
-
- // URL ÂÅÅöÀ¥Á¥§¥Ã¥¯ (¤³¤ì¤òÆþ¤ì¤ë¤È½èÍý»þ´Ö¤ËÌäÂ꤬¤Ç¤ë)
- $result = http_request($url,'HEAD');
- if ($result['rc'] !== 200)
- {
- tb_xml_msg(1,'URL is fictitious.');
- }
-
- // TRACKBACK_DIR ¤Î¸ºß¤È½ñ¤¹þ¤ß²Äǽ¤«¤Î³Îǧ
- if (!file_exists(TRACKBACK_DIR))
- {
- tb_xml_msg(1,'No such directory');
- }
- if (!is_writable(TRACKBACK_DIR))
- {
- tb_xml_msg(1,'Permission denied');
- }
-
- // TrackBack Ping ¤Î¥Ç¡¼¥¿¤ò¹¹¿·
+ if ($page === FALSE) return array(PLUGIN_TB_ERROR, 'TrackBack ID is invalid.');
+
+ // URL validation (maybe worse of processing time limit)
+ $result = http_request($url, 'HEAD');
+ if ($result['rc'] !== 200) return array(PLUGIN_TB_ERROR, 'URL is fictitious.');
+
+ // Update TrackBack Ping data
$filename = tb_get_filename($page);
- $data = tb_get($filename);
-
+ $data = tb_get($filename);
+
$items = array(UTIME);
- foreach ($fields as $field)
- {
- $value = array_key_exists($field,$post) ? $post[$field] : '';
- if (ereg("[,\"\n\r]",$value))
- {
- $value = '"'.str_replace('"', '""', $value).'"';
- }
- $items[$field] = $value;
- }
- $data[$items['url']] = $items;
-
- $fp = fopen($filename,'w');
- flock($fp,LOCK_EX);
- foreach ($data as $line)
- {
- fwrite($fp,join(',',$line)."\n");
+ foreach ($fields as $key) {
+ $value = isset($vars[$key]) ? $vars[$key] : '';
+ if (preg_match('/[,"' . "\n\r" . ']/', $value))
+ $value = '"' . str_replace('"', '""', $value) . '"';
+ $items[$key] = $value;
}
- flock($fp,LOCK_UN);
+ $data[rawurldecode($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($fp);
-
- tb_xml_msg(0,'');
+
+ return array(PLUGIN_TB_NOERROR, '');
}
-// XML ·ë²Ì½ÐÎÏ
-function tb_xml_msg($rc,$msg)
+// Show a response code of the ping via HTTP/XML (then exit)
+function plugin_tb_output_response($rc, $msg = '')
{
+ if ($rc == PLUGIN_TB_NOERROR) {
+ $rc = 0; // for PLUGIN_TB_NOERROR
+ } else {
+ $rc = 1; // for PLUGIN_TB_ERROR
+ }
+
+ pkwk_common_headers();
header('Content-Type: text/xml');
echo '<?xml version="1.0" encoding="iso-8859-1"?>';
- echo <<<EOD
-
-<response>
- <error>$rc</error>
- <message>$msg</message>
-</response>
-EOD;
- die;
+ echo '<response>';
+ echo ' <error>' . $rc . '</error>';
+ if ($rc) echo '<message>' . $msg . '</message>';
+ echo '</response>';
+ exit;
}
-// ?__mode=rss ½èÍý
-function tb_mode_rss($tb_id)
+// Show pings for the page via RSS
+function plugin_tb_output_rsslist($tb_id)
{
- global $script,$vars,$entity_pattern;
-
+ global $script, $vars, $entity_pattern;
+
$page = tb_id2page($tb_id);
- if ($page === FALSE)
- {
- return FALSE;
- }
-
+ if ($page === FALSE) return FALSE;
+
$items = '';
- foreach (tb_get(tb_get_filename($page)) as $arr)
- {
- $utime = array_shift($arr);
- list ($url,$title,$excerpt,$blog_name) = array_map(
- create_function('$a','return htmlspecialchars($a);'),$arr);
+ foreach (tb_get(tb_get_filename($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 .= <<<EOD
<item>
</item>
EOD;
}
-
+
$title = htmlspecialchars($page);
- $link = "$script?".rawurlencode($page);
+ $link = $script . '?' . rawurlencode($page);
$vars['page'] = $page;
- $excerpt = strip_htmltag(convert_html(join('',get_source($page))));
- $excerpt = preg_replace("/&$entity_pattern;/",'',$excerpt);
- $excerpt = mb_strimwidth(preg_replace("/[\r\n]/",' ',$excerpt),0,255,'...');
+ $excerpt = strip_htmltag(convert_html(get_source($page)));
+ $excerpt = preg_replace("/&$entity_pattern;/", '', $excerpt);
+ $excerpt = mb_strimwidth(preg_replace("/[\r\n]/", ' ', $excerpt), 0, 255, '...');
+ $lang = PLUGIN_TB_LANGUAGE;
$rc = <<<EOD
-
+<?xml version="1.0" encoding="utf-8" ?>
<response>
<error>0</error>
<rss version="0.91">
<title>$title</title>
<link>$link</link>
<description>$excerpt</description>
- <language>ja-Jp</language>$items
+ <language>$lang</language>$items
</channel>
</rss>
</response>
EOD;
- $rc = mb_convert_encoding($rc,'UTF-8',SOURCE_ENCODING);
+
+ pkwk_common_headers();
header('Content-Type: text/xml');
- echo '<?xml version="1.0" encoding="utf-8" ?>';
- echo $rc;
- die;
+ echo mb_convert_encoding($rc, 'UTF-8', SOURCE_ENCODING);
+ exit;
}
-// ?__mode=view ½èÍý
-function tb_mode_view($tb_id)
+
+// Show pings for the page via XHTML
+function plugin_tb_output_htmllist($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;
-
- // TrackBack ID ¤«¤é¥Ú¡¼¥¸Ì¾¤ò¼èÆÀ
+ pkwk_common_headers();
+ echo 'This function had been removed now. It will be created soon.<br />' . "\n";
+ echo 'Sorry for your inconvenience.';
+ exit;
+
+ // ----
+ // Skeleton Logic
+
+ global $script;
+ global $_tb_date;
+
$page = tb_id2page($tb_id);
- if ($page === FALSE)
- {
- return FALSE;
- }
- $r_page = rawurlencode($page);
-
- $tb_title = sprintf($_tb_title,$page);
- $tb_refer = sprintf($_tb_refer,"<a href=\"$script?$r_page\">'$page'</a>","<a href=\"$script\">$page_title</a>");
+ if ($page === FALSE) return FALSE;
-
$data = tb_get(tb_get_filename($page));
-
- // ºÇ¿·ÈǤ«¤éÀ°Îó
- usort($data,create_function('$a,$b','return $b[0] - $a[0];'));
-
+
+ // Sort: The first is the latest
+ usort($data, create_function('$a,$b', 'return $b[0] - $a[0];'));
+
$tb_body = '';
- foreach ($data as $x)
- {
- list ($time,$url,$title,$excerpt,$blog_name) = $x;
- if ($title == '')
- {
- $title = 'no title';
- }
+ foreach ($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
$tb_body .= <<<EOD
-<div class="trackback-body">
- <span class="trackback-post"><a href="$url" target="new">$title</a><br />
- <strong>$_tb_header_Excerpt</strong> $excerpt<br />
- <strong>$_tb_header_Weblog</strong> $blog_name<br />
- <strong>$_tb_header_Tracked</strong> $time
- </span>
-</div>
EOD;
}
+
+ // Output start
+ 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
+
+ $meta_content_type = pkwk_output_dtd(PKWK_DTD_XHTML_1_0_TRANSITIONAL, 'UTF-8');
$msg = <<<EOD
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ja" lang="ja">
<head>
- <meta http-equiv="content-type" content="application/xhtml+xml; charset=UTF-8" />
- <title>$tb_title</title>
- <link rel="stylesheet" href="skin/trackback.css" type="text/css" />
+ $meta_content_type
</head>
<body>
- <div id="banner-commentspop">$_tb_header</div>
- <div class="blog">
- <div class="trackback-url">
- $_tb_entry<br />
- $script?plugin=tb&tb_id=$tb_id<br /><br />
- $tb_refer
- </div>
- $tb_body
- </div>
+ $script?tb_id=$tb_id<br /><br />
+ $tb_body
</body>
</html>
EOD;
- echo '<?xml version="1.0" encoding="UTF-8"?>';
- echo mb_convert_encoding($msg,'UTF-8',SOURCE_ENCODING);
- die;
+ echo mb_convert_encoding($msg, 'UTF-8', SOURCE_ENCODING);
+ exit;
}
?>
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