$result = mysql_query($query);
if (!$result) {
// Database error, return a proper HTTP response code with error
$ret .= header("HTTP/1.1 500 Internal Error");
$ret .= header("Status: 500 Internal Error");
$ret .= "<html><body>\n";
$ret .= "Internal error: could not deliver the ping (database error).\n";
$ret .= "</body></html>\n";
} else {
mysql_free_result($result);
// Send a mail too if the receiving user allows it
if (is_subscribed_email($to)) {
$person = new MyProfile(trim($_POST['target']), BASE_URI, SPARQL_ENDPOINT);
$person->load();
$to_name = $person->get_name();
$to_email = $person->get_email();
$from = 'MyProfile Notification System <' . SMTP_USERNAME . '>';
$to = '"' . $to_name . '" <' . clean_mail($to_email) . '>';
$subject = 'You have received a new personal message!';
$headers = array('From' => $from, 'To' => $to, 'Subject' => $subject);
$smtp = Mail::factory('smtp', array('host' => SMTP_SERVER, 'auth' => SMTP_AUTHENTICATION, 'username' => SMTP_USERNAME, 'password' => SMTP_PASSWORD));
$message = '<html><body>';
$message .= '<p>Hello ' . $to_name . ',</p>';
$message .= '<p>You have just received a new message from ' . $name . '! ';
$message .= '<a href="' . BASE_URI . '/messages">Click here</a> to see it.</p>';
$message .= '<br/><p><small>You are receiving this email because you enabled Semantic Pingback notification ';
$message .= '(with email as notification mechanism) for your Personal Profile on <a href="' . BASE_URI . '">' . BASE_URI . '</a>. ';
$message .= 'If you would like to stop receiving email notifications, please check your ';
$message .= ' <a href="' . BASE_URI . '/subscription.php">subscription settings</a>.</small></p>';
$message .= '<p><small>You do not need to respond to this automated email.</small></p>';
$message .= '</body></html>';
function sendPing($to, $message, $base_uri, $verbose = false)
{
$ret = "<br/>\n";
$to = trim($to);
// fetch the user's profile
$person = new MyProfile($to, $base_uri, SPARQL_ENDPOINT);
$person->load();
$profile = $person->get_profile();
$to_name = $person->get_name();
$to_email = $person->get_email();
$pingback_service = $profile->get("pingback:to");
// set form data
$source = $_SESSION['webid'];
// parse the pingback form
$config = array('auto_extract' => 0);
$parser = ARC2::getSemHTMLParser($config);
$parser->parse($pingback_service);
$parser->extractRDF('rdfa');
// load triples
$triples = $parser->getTriples();
// proceed only if the user has defined a pingback:to relation
if ($pingback_service != null) {
if (sizeof($triples) > 0) {
//echo "<pre>" . print_r($triples, true) . "</pre>\n";
foreach ($triples as $triple) {
// proceed only if we have a valid pingback resource
if ($triple['o'] == 'http://purl.org/net/pingback/Container') {
$fields = array('source' => $source, 'target' => $to, 'comment' => $message);
// Should really replace curl with an ajax call
//open connection to pingback service
$ch = curl_init();
//set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_URL, $pingback_service);
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//execute post
$return = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
//close connection
curl_close($ch);
if ($httpCode == '201' || $httpCode == '202') {
$ret .= success('Message delivered!');
} else {
$ret .= error('Something happened and I couldn\'t deliver the message!');
$ret .= "<p>Details:</p>\n";
$ret .= "</p>" . $return . "</p>\n";
}
break;
}
}
} else {
$ret .= " <p>{$pingback_service} does not comply with semantic pingback standards! Showing the pingback service page instead.</p>\n";
// show frame
$ret .= " <iframe src=\"{$pingback_service}\" width=\"100%\" height=\"300\">\n";
$ret .= " <p>Your browser does not support iframes.</p>\n";
$ret .= " </iframe>\n";
}
} else {
// no valid pingback service found, fallback to AKSW
$ret .= " <p>Could not find a pingback service for the given WebID. Here is a generic pingback service provided by http://pingback.aksw.org/.</p>\n";
$ret .= " <iframe src=\"http://pingback.aksw.org/\" width=\"100%\" height=\"300\">\n";
$ret .= " <p>Your browser does not support iframes.</p>\n";
$ret .= " </iframe>\n";
}
if ($verbose) {
return $ret;
}
}