dcCore dcCore instance
public $table; ///< string done pings table name
/**
Object constructor
@param core dcCore dcCore instance
*/
public function __construct($core)
{
$this->core =& $core;
$this->con =& $this->core->con;
$this->table = $this->core->prefix.'ping';
}
/// @name Send
//@{
/**
Get all pings sent for a given post.
@param post_id integer Post ID
@return record
*/
public function getPostPings($post_id)
{
$strReq = 'SELECT ping_url, ping_dt '.
'FROM '.$this->table.' '.
'WHERE post_id = '.(integer) $post_id;
return $this->con->select($strReq);
}
/**
Sends a ping to given $url.
@param url string URL to ping
@param post_id integer Post ID
@param post_title string Post title
@param post_excerpt string Post excerpt
@param post_url string Post URL
*/
public function ping($url,$post_id,$post_title,$post_excerpt,$post_url)
{
if ($this->core->blog === null) {
return false;
}
$post_id = (integer) $post_id;
# Check for previously done trackback
$strReq = 'SELECT post_id, ping_url FROM '.$this->table.' '.
'WHERE post_id = '.$post_id.' '.
"AND ping_url = '".$this->con->escape($url)."' ";
$rs = $this->con->select($strReq);
if (!$rs->isEmpty()) {
throw new Exception(sprintf(__('%s has still been pinged'),$url));
}
$ping_parts = explode('|',$url);
# Maybe a webmention
if (count($ping_parts) == 3) {
$payload = http_build_query(array(
'source' => $post_url,
'target' => $ping_parts[1]
));
try {
$http = self::initHttp($ping_parts[0],$path);
$http->setMoreHeader('Content-Type: application/x-www-form-urlencoded');
$http->post($path,$payload,'UTF-8');
# Read response status
$status = $http->getStatus();
$ping_error = '0';
}
catch (Exception $e) {
throw new Exception(__('Unable to ping URL'));
}
if (!in_array($status,array('200','201','202'))) {
$ping_error = $http->getStatus();
$ping_msg = __('Bad server response code');
}
}
# No, let's walk by the trackback way
elseif (count($ping_parts) < 2) {
$data = array(
'title' => $post_title,
'excerpt' => $post_excerpt,
'url' => $post_url,
'blog_name' => trim(html::escapeHTML(html::clean($this->core->blog->name)))
//,'__debug' => false
);
# Ping
try {
$http = self::initHttp($url,$path);
$http->post($path,$data,'UTF-8');
$res = $http->getContent();
}
catch (Exception $e) {
throw new Exception(__('Unable to ping URL'));
}
$pattern =
'|.*(.*)(.*)'.
'((.*)(.*))?'.
'|msU';
if (!preg_match($pattern,$res,$match)) {
throw new Exception(sprintf(__('%s is not a ping URL'),$url));
}
$ping_error = trim($match[1]);
$ping_msg = (!empty($match[4])) ? $match[4] : '';
}
# Damnit ! Let's play pingback
else {
try {
$xmlrpc = new xmlrpcClient($ping_parts[0]);
$res = $xmlrpc->query('pingback.ping', $post_url, $ping_parts[1]);
$ping_error = '0';
}
catch (xmlrpcException $e) {
$ping_error = $e->getCode();
$ping_msg = $e->getMessage();
}
catch (Exception $e) {
throw new Exception(__('Unable to ping URL'));
}
}
if ($ping_error != '0') {
throw new Exception(sprintf(__('%s, ping error:'),$url).' '.$ping_msg);
}
else {
# Notify ping result in database
$cur = $this->con->openCursor($this->table);
$cur->post_id = $post_id;
$cur->ping_url = $url;
$cur->ping_dt = date('Y-m-d H:i:s');
$cur->insert();
}
}
//@}
/// @name Receive
//@{
/**
Receives a trackback and insert it as a comment of given post.
@param post_id integer Post ID
*/
public function receiveTrackback($post_id)
{
header('Content-Type: text/xml; charset=UTF-8');
if (empty($_POST)) {
http::head(405,'Method Not Allowed');
echo
''."\n".
"\n".
" 1\n".
" POST request needed\n".
"";
return;
}
$post_id = (integer) $post_id;
$title = !empty($_POST['title']) ? $_POST['title'] : '';
$excerpt = !empty($_POST['excerpt']) ? $_POST['excerpt'] : '';
$url = !empty($_POST['url']) ? $_POST['url'] : '';
$blog_name = !empty($_POST['blog_name']) ? $_POST['blog_name'] : '';
$charset = '';
$comment = '';
$err = false;
$msg = '';
if ($this->core->blog === null) {
$err = true;
$msg = 'No blog.';
}
elseif ($url == '') {
$err = true;
$msg = 'URL parameter is required.';
}
elseif ($blog_name == '') {
$err = true;
$msg = 'Blog name is required.';
}
if (!$err) {
$post = $this->core->blog->getPosts(array('post_id'=>$post_id,'post_type'=>''));
if ($post->isEmpty()) {
$err = true;
$msg = 'No such post.';
}
elseif (!$post->trackbacksActive()) {
$err = true;
$msg = 'Trackbacks are not allowed for this post or weblog.';
}
$url = trim(html::clean($url));
if ($this->pingAlreadyDone($post->post_id,$url)) {
$err = true;
$msg = 'The trackback has already been registered';
}
}
if (!$err) {
$charset = self::getCharsetFromRequest();
if (!$charset) {
$charset = self::detectCharset($title.' '.$excerpt.' '.$blog_name);
}
if (strtolower($charset) != 'utf-8') {
$title = iconv($charset,'UTF-8',$title);
$excerpt = iconv($charset,'UTF-8',$excerpt);
$blog_name = iconv($charset,'UTF-8',$blog_name);
}
$title = trim(html::clean($title));
$title = html::decodeEntities($title);
$title = html::escapeHTML($title);
$title = text::cutString($title,60);
$excerpt = trim(html::clean($excerpt));
$excerpt = html::decodeEntities($excerpt);
$excerpt = preg_replace('/\s+/ms',' ',$excerpt);
$excerpt = text::cutString($excerpt,252);
$excerpt = html::escapeHTML($excerpt).'...';
$blog_name = trim(html::clean($blog_name));
$blog_name = html::decodeEntities($blog_name);
$blog_name = html::escapeHTML($blog_name);
$blog_name = text::cutString($blog_name,60);
try {
$this->addBacklink($post_id,$url,$blog_name,$title,$excerpt,$comment);
}
catch (Exception $e) {
$err = 1;
$msg = 'Something went wrong : '.$e->getMessage();
}
}
$resp =
''."\n".
"\n".
' '.(integer) $err."\n";
if ($msg) {
$resp .= ' '.$msg."\n";
}
if (!empty($_POST['__debug'])) {
$resp .=
" \n".
' '.$title."\n".
' '.$excerpt."\n".
' '.$url."\n".
' '.$blog_name."\n".
' '.$charset."\n".
' '.$comment."\n".
" \n";
}
echo $resp."";
}
/**
Receives a pingback and insert it as a comment of given post.
@param from_url string Source URL
@param to_url string Target URL
*/
public function receivePingback($from_url,$to_url)
{
try {
$posts = $this->getTargetPost($to_url);
if ($this->pingAlreadyDone($posts->post_id,$from_url)) {
throw new Exception(__('Don\'t repeat yourself, please.'), 48);
}
$remote_content = $this->getRemoteContent($from_url);
# We want a title...
if (!preg_match('!([^<].*?)!mis',$remote_content,$m)) {
throw new Exception(__('Where\'s your title?'), 0);
}
$title = trim(html::clean($m[1]));
$title = html::decodeEntities($title);
$title = html::escapeHTML($title);
$title = text::cutString($title,60);
preg_match('!]*?>(.*)?!msi',$remote_content,$m);
$source = $m[1];
$source = preg_replace('![\r\n\s]+!ms',' ',$source);
$source = preg_replace( "/<\/*(h\d|p|th|td|li|dt|dd|pre|caption|input|textarea|button)[^>]*>/","\n\n",$source );
$source = strip_tags($source,'