/**
* Trackbacks sent to
* After sending the results are not sticky and handling
* @param documentItem $oDocument
* @param string $trackback_url
* @param string $charset
* @return Object
*/
function sendTrackback($oDocument, $trackback_url, $charset)
{
$oModuleController =& getController('module');
// Information sent by
$http = parse_url($trackback_url);
$obj->blog_name = str_replace(array('<', '>', '&', '"'), array('<', '>', '&', '"'), Context::getBrowserTitle());
$oModuleController->replaceDefinedLangCode($obj->blog_name);
$obj->title = $oDocument->getTitleText();
$obj->excerpt = $oDocument->getSummary(200);
$obj->url = getFullUrl('', 'document_srl', $oDocument->document_srl);
// blog_name, title, excerpt, url charset of the string to the requested change
if ($charset && function_exists('iconv')) {
foreach ($obj as $key => $val) {
$obj->{$key} = iconv('UTF-8', $charset, $val);
}
}
// written information sent to socket
if ($http['query']) {
$http['query'] .= "&";
}
if (!$http['port']) {
$http['port'] = 80;
}
$content = sprintf("title=%s&" . "url=%s&" . "blog_name=%s&" . "excerpt=%s", urlencode($obj->title), urlencode($obj->url), urlencode($obj->blog_name), urlencode($obj->excerpt));
if ($http['query']) {
$content .= '&' . $http['query'];
}
$content_length = strlen($content);
// header by
$header = sprintf("POST %s HTTP/1.1\r\n" . "Host: %s\r\n" . "Content-Type: %s\r\n" . "Content-Length: %s\r\n\r\n" . "%s\r\n", $http['path'], $http['host'], "application/x-www-form-urlencoded", $content_length, $content);
if (!$http['host'] || !$http['port']) {
return new Object(-1, 'msg_trackback_url_is_invalid');
}
// Opens a socket on the target server you want to send
$fp = @fsockopen($http['host'], $http['port'], $errno, $errstr, 5);
if (!$fp) {
return new Object(-1, 'msg_trackback_url_is_invalid');
}
// Header information sent by
fputs($fp, $header);
// Waiting for the results (in particular the server may not be falling EOF
while (!feof($fp)) {
$line = trim(fgets($fp, 4096));
if (preg_match("/^<error>/i", $line)) {
$error = preg_replace('/[^0-9]/', '', $line);
break;
}
}
// Close socket
fclose($fp);
if ($error == "0") {
return new Object(0, 'msg_trackback_send_success');
}
return new Object(-1, 'msg_trackback_send_failed');
}