public static function curlContactCert($url, $key, $cert, $keypw = false, $postData = null)
{
if (is_null($key) || is_null($cert) || $key === "" || $cert === "") {
throw new ConfusaGenException("Empty key or certificate received " . "when using curlContactCert(). " . "Aborting curl-transfer to url: {$url}");
}
if (is_null($postData) || !is_array($postData) || count($postData) == 0) {
return false;
}
/* Do basic URL filtering */
$curlurl = Input::sanitizeURL($url);
if (is_null($curlurl) || $curlurl === "" || filter_var($curlurl, FILTER_VALIDATE_URL) === false) {
Logger::log_event(LOG_NOTICE, "invalid URL (" . $curlurl . "), aborting curl-fetch.");
return false;
}
Logger::log_event(LOG_DEBUG, "Contacting {$curlurl} using cert AuthN");
/* key should be encrypted, if not, do not use it (not safe!) */
$start = "-----BEGIN ENCRYPTED PRIVATE KEY-----";
if (substr($key, 0, strlen($start)) !== $start) {
Logger::log_event(LOG_NOTICE, "Trying to use curlContactCert with unecrypted private key, aborting.");
return false;
}
$rkey = openssl_pkey_get_private($key, $keypw);
if ($rkey === false) {
Logger::log_event(LOG_NOTICE, "Could not parse private key for CurlContactCert, aborting");
return false;
}
if (!openssl_x509_check_private_key($cert, $rkey)) {
Logger::log_event(LOG_NOTICE, "Provided key and certificate is not a pair, cannot continue.");
/* throw exception? */
return false;
}
$rcert = new Certificate($cert);
if (!$rcert->isValid()) {
$logline = "Certificate (" . $rcert->getHash() . ") has expired, cannot use this. Aborting curl.";
Logger::log_event(LOG_NOTICE, $logline);
return false;
}
if (!file_exists("/tmp/" . $rcert->getHash() . ".key") || !file_exists("/tmp/" . $rcert->getHash() . ".crt")) {
if (file_put_contents("/tmp/" . $rcert->getHash() . ".key", $key) === false) {
Logger::log_event(LOG_NOTICE, "Could not write key to file");
}
if (file_put_contents("/tmp/" . $rcert->getHash() . ".crt", $cert) === false) {
Logger::log_event(LOG_NOTICE, "Could not write cert to file");
}
}
$options = array(CURLOPT_URL => $curlurl, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => 2, CURLOPT_SSLKEY => "/tmp/" . $rcert->getHash() . ".key", CURLOPT_SSLCERT => "/tmp/" . $rcert->getHash() . ".crt", CURLOPT_SSLKEYPASSWD => $keypw, CURLOPT_HEADER => false, CURLOPT_FOLLOWLOCATION => true, CURLOPT_RETURNTRANSFER => 1, CURLOPT_CONNECTTIMEOUT => 15);
$channel = curl_init();
curl_setopt_array($channel, $options);
$data = curl_exec($channel);
$status = curl_errno($channel);
curl_close($channel);
if ($status !== 0) {
throw new ConfusaGenException("Could not connect properly to remote " . "endpoint {$curlurl} using cert-based authN! " . "Maybe the Confusa instance is misconfigured? " . "Please contact an administrator!");
}
return $data;
}