base_path.$permLink));
$query_string = "title=".$title."&url=".$permLink."&blog_name=".$blog_name."&excerpt=".$excerpt;
if (strstr($pingUrl, '?'))
{
$pingUrl .= "&".$query_string;
$fp = fopen($pingUrl, 'r');
$response = fread($fp, 4096);
fclose($fp);
}
else
{
$trackback_url = parse_url($pingUrl);
if ((isset($trackback_url["query"])) && ($trackback_url["query"] != ""))
{
$trackback_url["query"] = "?" . $trackback_url["query"];
}
else
{
$trackback_url["query"] = "";
}
if ((isset($trackback_url["port"]) && !is_numeric($trackback_url["port"])) || (!isset($trackback_url["port"])))
{
$trackback_url["port"] = 80;
}
$header = 'POST ' . $trackback_url['path'] . $trackback_url['query'] . " HTTP/1.0\r\n";
$header .= 'Host: '.$trackback_url['host']."\r\n";
$header .= 'Content-Type: application/x-www-form-urlencoded; charset=utf-8'."\r\n";
$header .= 'Content-Length: '.strlen($query_string)."\r\n";
$header .= "\r\n";
$header .= $query_string;
$socket = fsockopen($trackback_url["host"], $trackback_url["port"]);
if (!is_resource($socket))
{
return 'trackbackClass -> sendTrackback: Unable to connect to {$trackback_url[\'host\']}.';
}
fputs($socket, $header);
$response = "";
while (!feof($socket)) {
$response .= fgets($socket, 4096);
}
fclose($socket);
}
if(strstr($response, "0"))
{
return FALSE;
}
else
{
if(preg_match('#\(.*?)\<\/message\>#', $response, $match))
{
return $match[0];
}
else
{
return "No error returned.";
}
}
}
function respondTrackback ()
{
global $sql, $pref, $tp, $e107cache;
$errorMessage = "";
if(!$pref['trackbackEnabled'])
{
$errorMessage = "This site does not allow trackbacks.";
}
$pid = (isset($_GET['pid']) ? intval($_GET['pid']) : intval($_POST['pid']));
$permLink = (isset($_GET['url']) ? $_GET['url'] : $_POST['url']);
$permLink = $tp -> toDB($permLink);
$blog_name = (isset($_GET['blog_name']) ? $_GET['blog_name'] : $_POST['blog_name']);
$blog_name = $tp -> toDB($blog_name);
$title = (isset($_GET['title']) ? $_GET['title'] : $_POST['title']);
$title = $tp -> toDB($title);
$excerpt = (isset($_GET['excerpt']) ? $_GET['excerpt'] : $_POST['excerpt']);
$excerpt = $tp -> toDB($excerpt);
/* debug */
/*
$debug_str = "Query string: ".e_TBQS."\n";
$debug_str .= "GET INFO: \n";
foreach($_GET as $key => $get)
{
$debug_str .= "$key => $get\n";
}
$debug_str .= "POST INFO: \n";
foreach($_POST as $key => $get)
{
$debug_str .= "$key => $get\n";
}
$sql -> db_Insert("debug", "0, '".time()."', '$debug_str' ");
*/
/* end debug */
if(!$pid)
{
$errorMessage = "No permanent ID sent.";
}
if(!isset($pid) || !is_numeric($pid))
{
$errorMessage = "No known item with that pid (pid sent as ".$pid.").";
}
$excerpt = ($excerpt ? strip_tags($excerpt) : "I found your news item interesting, I've added a trackback to it on my website :)");
$title = ($title ? $title : "Trackbacking your news item ...");
$blog_name = ($blog_name ? $blog_name : "Anonymous site");
if(!$errorMessage)
{
if(!$sql -> db_Insert("trackback", "0, {$pid}, '{$title}', '{$excerpt}', '{$permLink}', '{$blog_name}' "))
{
$errorMessage = "Unable to enter your trackback information into the database -> 0, {$pid}, '{$title}', '{$excerpt}', '{$permLink}', '{$blog_name}'";
}
else
{
$e107cache->clear("comment.php?news.{$pid}");
}
}
if($errorMessage)
{
echo '\n";
echo "\n";
echo "1\n";
echo "".$errorMessage."\n";
echo "";
}
else
{
echo '\n";
echo "\n";
echo "0\n";
echo "";
}
}
}
?>