/**
* Verify parameters match
*
* @var array
*
* @return boolean
*/
function verify_pingback_ping(&$pinfo)
{
$params = array(
'string',
'string',
);
require_once(DIR . '/includes/blog_functions_post.php');
if ($this->build_xmlrpc_array($params, $pinfo))
{
// XML-RPC is valid if we are here
// 1 - Verify that the second URL matches the URL to our blog but don't validate the blogid here
// 2 - Insert the information into the blog_pinghistory table
// 3 - Cron script will verify the entries and insert pingbacks
// This allows us to kill floods for the most part
if (!empty($this->xmlrpc_array[0]['string']))
{
if (preg_match('#^' . preg_quote($this->registry->options['bburl'], '#') . '\/blog(?:_callback)?.php\?b(?:logid)?=(\d+)$#si', trim($this->xmlrpc_array[1]['string']), $matches))
{
$blogid = intval($matches[1]);
$sourcemd5 = md5(trim($this->xmlrpc_array[0]['string']));
if ($blogid)
{
$result = $this->registry->db->query_write("
INSERT IGNORE INTO " . TABLE_PREFIX . "blog_pinghistory
(blogid, sourcemd5, sourceurl, dateline)
VALUES
($blogid, '$sourcemd5', '" . $this->registry->db->escape_string(trim($this->xmlrpc_array[0]['string'])) . "', " . TIMENOW . ")
");
if ($this->registry->db->affected_rows($result))
{
$this->build_xml_response('accepted');
require_once(DIR . '/includes/blog_functions.php');
if ($bloginfo = fetch_bloginfo($blogid))
{
if ($bloginfo['state'] == 'visible')
{
cache_permissions($bloginfo, false);
// verify user has permission to receive pingbacks
if ($bloginfo['permissions']['vbblog_general_permissions'] & $this->registry->bf_ugp_vbblog_general_permissions['blog_canreceivepingback'])
{
$dataman =& datamanager_init('Blog_Trackback', $this->registry, ERRTYPE_ARRAY);
$dataman->set('blogid', $blogid);
$dataman->set('url', trim($this->xmlrpc_array[0]['string']));
$dataman->set('userid', $bloginfo['userid']);
$dataman->set_info('akismet_key', $bloginfo['akismet_key']);
$dataman->pre_save();
if (!empty($dataman->errors))
{
write_trackback_log('pingback', 'in', 6, array('GLOBALS' => $GLOBALS['HTTP_RAW_POST_DATA'], 'errors' => $dataman->errors));
}
else
{
$dataman->save();
write_trackback_log('pingback', 'in', 0, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 4, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 7, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 5, $GLOBALS['HTTP_RAW_POST_DATA']);
}
return true;
}
else
{
write_trackback_log('pingback', 'in', 3, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 2, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 2, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 1, $GLOBALS['HTTP_RAW_POST_DATA']);
}
}
else
{
write_trackback_log('pingback', 'in', 1, $GLOBALS['HTTP_RAW_POST_DATA']);
}
$xml_error_struct = $this->build_fault_struct(-32500, $this->faultcodes['-32500']);
$this->build_xml_response($xml_error_struct, true);
// $this->build_xmlrpc_array sets build_xml_response() on failure
return false;
}
/**
* Send a pingback / trackback request
*
* @param array Bloginfo
* @param string Destination URL
* @param string Title of the blog
*
* @return mixed error string on failure, true on success or apparent success
*/
function send_ping_notification(&$bloginfo, $desturl, $blogtitle)
{
global $vbulletin;
if (!intval($bloginfo['blogid']))
{
return false;
}
$ourblogurl = $vbulletin->options['bburl'] . '/blog.php?blogid=' . $bloginfo['blogid'];
$pingback_dest = '';
$trackback_dest = $desturl;
require_once(DIR . '/includes/functions_file.php');
if ($headresult = fetch_head_request($desturl))
{
if (!empty($headresult['x-pingback']))
{
$pingback_dest = $headresult['x-pingback'];
}
else if ($headresult['http-response']['statuscode'] == 200 AND preg_match('#text\/html#si', $headresult['content-type']))
{
// Limit to 5KB
// Consider adding the ability to Kill the transfer on </head>\s+*<body to class_vurl.php
if ($bodyresult = fetch_body_request($desturl, 5120))
{
// search head for <link rel="pingback" href="pingback server">
if (preg_match('<link rel="pingback" href="([^"]+)" ?/?>', $bodyresult, $matches))
{
$pingback_dest = $matches[0];
}
else if (preg_match('#<rdf:Description((?!<\/rdf:RDF>).)*dc:identifier="' . preg_quote($desturl, '#') . '".*<\/rdf:RDF>#siU', $bodyresult))
{
if (preg_match('#<rdf:Description(?:(?!<\/rdf:RDF>).)*trackback:ping="([^"]+)".*<\/rdf:RDF>#siU', $bodyresult, $matches))
{
$trackback_dest = trim($matches[1]);
}
}
}
}
if (!empty($pingback_dest))
{
// Client
require_once(DIR . '/includes/class_xmlrpc.php');
$xmlrpc = new vB_XMLRPC_Client($vbulletin);
$xmlrpc->build_xml_call('pingback.ping', $ourblogurl, $desturl);
if ($pingresult = $xmlrpc->send_xml_call($pingback_dest))
{
require_once(DIR . '/includes/class_xmlrpc.php');
$xmlrpc_server = new vB_XMLRPC_Server($vbulletin);
$xmlrpc_server->parse_xml($pingresult['body']);
$xmlrpc_server->parse_xmlrpc();
}
// NOT FINSIHED
write_trackback_log('pingback', 'out', 0, $pingresult, $bloginfo, $desturl);
// Not always a success but we can't know for sure
return true;
}
else
{
// Client
require_once(DIR . '/includes/class_trackback.php');
$tb = new vB_Trackback_Client($vbulletin);
$excerpt = fetch_censored_text(fetch_trimmed_title(strip_bbcode(strip_quotes($bloginfo['pagetext']), false, true), 255));
if ($result = $tb->send_ping($trackback_dest, $ourblogurl, $bloginfo['title'], $excerpt, $blogtitle))
{
require_once(DIR . '/includes/class_xml.php');
$xml_object = new vB_XML_Parser($result['body']);
$xml_object->include_first_tag = true;
if ($xml_object->parse_xml() AND $xml_object->parseddata['response']['error'] === '0')
{
write_trackback_log('trackback', 'out', 0, $result, $bloginfo, $desturl);
return true;
}
}
write_trackback_log('trackback', 'out', 3, $result, $bloginfo, $desturl);
// Not always a success but we can't know for sure
return true;
}
}
write_trackback_log('none', 'out', 1, '', $bloginfo, $desturl);
return false;
}
function send_xml_response()
{
require_once(DIR . '/includes/class_xml.php');
$this->xml_object = new vB_XML_Builder($this->registry);
$this->xml_object->doc = '';
$this->xml_object->add_group('response');
if ($this->sourceurl AND $this->registry->options['vbblog_trackback'])
{
$sourcemd5 = md5($this->sourceurl);
$result = $this->registry->db->query_write("
INSERT IGNORE INTO " . TABLE_PREFIX . "blog_pinghistory
(blogid, sourcemd5, sourceurl, dateline)
VALUES ({$this->blogid}, '$sourcemd5', '" . $this->registry->db->escape_string($this->sourceurl) . "', " . TIMENOW . ")
");
require_once(DIR . '/includes/blog_functions_post.php');
if ($this->registry->db->affected_rows($result))
{
require_once(DIR . '/includes/blog_functions.php');
if ($bloginfo = fetch_bloginfo($this->blogid))
{
if ($bloginfo['state'] == 'visible')
{
cache_permissions($bloginfo, false);
if ($bloginfo['permissions']['vbblog_general_permissions'] & $this->registry->bf_ugp_vbblog_general_permissions['blog_canreceivepingback'])
{
// verify user has permission to receive trackbacks
$dataman =& datamanager_init('Blog_Trackback', $this->registry, ERRTYPE_SILENT);
$dataman->set('blogid', $this->blogid);
$dataman->set('url', $this->sourceurl);
$dataman->set('userid', $bloginfo['userid']);
$dataman->set_info('akismet_key', $bloginfo['akismet_key']);
if (!empty($dataman->errors))
{
write_trackback_log('trackback', 'in', 6, array('GLOBALS' => '', 'errors' => $dataman->errors), $bloginfo, $this->sourceurl);
}
else
{
$dataman->save();
write_trackback_log('trackback', 'in', 0, '', $bloginfo, $this->sourceurl);
}
}
else
{
write_trackback_log('trackback', 'in', 4, '', $bloginfo, $this->sourceurl);
}
}
else
{
write_trackback_log('trackback', 'in', 7, '', $bloginfo, $this->sourceurl);
}
}
else
{
write_trackback_log('trackback', 'in', 5, '', array(), $this->sourceurl);
}
if (defined('NOSHUTDOWNFUNC'))
{
$this->registry->db->close();
}
$this->xml_object->add_tag('error', 0);
$this->xml_object->close_group('response');
$this->xml_object->send_content_type_header();
$this->xml_object->send_content_length_header();
echo $this->xml_object->fetch_xml_tag() . $this->xml_object->output();
return;
}
else
{
write_trackback_log('trackback', 'in', 3, '', array(), $this->sourceurl);
}
}
if (defined('NOSHUTDOWNFUNC'))
{
$this->registry->db->close();
}
$this->xml_object->add_tag('error', 1);
$this->xml_object->add_tag('message', 'Invalid');
$this->xml_object->close_group('response');
$this->xml_object->send_content_type_header();
$this->xml_object->send_content_length_header();
echo $this->xml_object->fetch_xml_tag() . $this->xml_object->output();
return;
}