From 0c9fd0251f72dfed05f87f6cca6ccb00d080e34a Mon Sep 17 00:00:00 2001
From: henoheno <henoheno>
Date: Sun, 11 Feb 2007 14:53:32 +0900
Subject: [PATCH] BugTrack2/62: TrackBack implimentation had been removed
 entirely due to extremely strong suspicion of violating copyright. 'referer'
 function (using this implementation), also removed.

---
 plugin/tb.inc.php | 239 ------------------------------------------------------
 1 file changed, 239 deletions(-)
 delete mode 100644 plugin/tb.inc.php

diff --git a/plugin/tb.inc.php b/plugin/tb.inc.php
deleted file mode 100644
index 1726e40..0000000
--- a/plugin/tb.inc.php
+++ /dev/null
@@ -1,239 +0,0 @@
-<?php
-// $Id: tb.inc.php,v 1.21 2005/06/15 15:57:11 henoheno Exp $
-/*
- * 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
- * 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 $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($pages, 'read', FALSE));
-			} else {
-				return array('msg'=>'', 'body'=>'');
-			}
-		}
-	}
-}
-
-// Save or update TrackBack Ping data
-function plugin_tb_save($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 != '') 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) 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);
-
-	$items = array(UTIME);
-	foreach ($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($fp);
-
-	return array(PLUGIN_TB_NOERROR, '');
-}
-
-// Show a response code of the ping via HTTP/XML (then exit)
-function plugin_tb_output_response($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 '<response>';
-	echo ' <error>' . $rc . '</error>';
-	if ($rc) echo '<message>' . $msg . '</message>';
-	echo '</response>';
-	exit;
-}
-
-// Show pings for the page via RSS
-function plugin_tb_output_rsslist($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);
-		$items .= <<<EOD
-
-   <item>
-    <title>$title</title>
-    <link>$url</link>
-    <description>$excerpt</description>
-   </item>
-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;
-
-	$rc = <<<EOD
-<?xml version="1.0" encoding="utf-8" ?>
-<response>
- <error>0</error>
- <rss version="0.91">
-  <channel>
-   <title>$title</title>
-   <link>$link</link>
-   <description>$excerpt</description>
-   <language>$lang</language>$items
-  </channel>
- </rss>
-</response>
-EOD;
-
-	pkwk_common_headers();
-	header('Content-Type: text/xml');
-	echo mb_convert_encoding($rc, 'UTF-8', SOURCE_ENCODING);
-	exit;
-}
-
-// Show pings for the page via XHTML
-function plugin_tb_output_htmllist($tb_id)
-{
-	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;
-
-	$data = tb_get(tb_get_filename($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 .= <<<EOD
-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
-<head>
- $meta_content_type
-</head>
-<body>
- $script?tb_id=$tb_id<br /><br />
- $tb_body
-</body>
-</html>
-EOD;
-	echo mb_convert_encoding($msg, 'UTF-8', SOURCE_ENCODING);
-	exit;
-}
-?>
-- 
2.11.0