/**
* Get the remote machine's SSL Cert
*
* @param string $uri The URI of a file on the remote computer, including
* its http:// or https:// prefix
* @return string A PEM formatted SSL Certificate.
*/
function mnet_get_public_key($uri, $application = null)
{
global $CFG, $MNET;
// The key may be cached in the mnet_set_public_key function...
// check this first
$key = mnet_set_public_key($uri);
if ($key != false) {
return $key;
}
if (empty($application)) {
$application = get_record('mnet_application', 'name', 'moodle');
}
$rq = xmlrpc_encode_request('system/keyswap', array($CFG->wwwroot, $MNET->public_key, $application->name), array("encoding" => "utf-8"));
$ch = curl_init($uri . $application->xmlrpc_server_url);
curl_setopt($ch, CURLOPT_TIMEOUT, 60);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'Moodle');
curl_setopt($ch, CURLOPT_POSTFIELDS, $rq);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: text/xml charset=UTF-8"));
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
$res = xmlrpc_decode(curl_exec($ch));
curl_close($ch);
if (!is_array($res)) {
// ! error
$public_certificate = $res;
$credentials = array();
if (strlen(trim($public_certificate))) {
$credentials = openssl_x509_parse($public_certificate);
$host = $credentials['subject']['CN'];
if (strpos($uri, $host) !== false) {
mnet_set_public_key($uri, $public_certificate);
return $public_certificate;
}
}
}
return false;
}
/**
* Get the remote machine's SSL Cert
*
* @param string $uri The URI of a file on the remote computer, including
* its http:// or https:// prefix
* @return string A PEM formatted SSL Certificate.
*/
function mnet_get_public_key($uri, $application = null)
{
global $CFG, $MNET;
// The key may be cached in the mnet_set_public_key function...
// check this first
$key = mnet_set_public_key($uri);
if ($key != false) {
return $key;
}
if (empty($application)) {
$application = get_record('mnet_application', 'name', 'moodle');
}
$rq = xmlrpc_encode_request('system/keyswap', array($CFG->wwwroot, $MNET->public_key, $application->name), array("encoding" => "utf-8"));
$ch = curl_init($uri . $application->xmlrpc_server_url);
curl_setopt($ch, CURLOPT_TIMEOUT, 60);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'Moodle');
curl_setopt($ch, CURLOPT_POSTFIELDS, $rq);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: text/xml charset=UTF-8"));
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
$res = xmlrpc_decode(curl_exec($ch));
// check for curl errors
$curlerrno = curl_errno($ch);
if ($curlerrno != 0) {
debugging("Request for {$uri} failed with curl error {$curlerrno}");
}
// check HTTP error code
$info = curl_getinfo($ch);
if (!empty($info['http_code']) and $info['http_code'] != 200) {
debugging("Request for {$uri} failed with HTTP code " . $info['http_code']);
}
curl_close($ch);
if (!is_array($res)) {
// ! error
$public_certificate = $res;
$credentials = array();
if (strlen(trim($public_certificate))) {
$credentials = openssl_x509_parse($public_certificate);
$host = $credentials['subject']['CN'];
if (strpos($uri, $host) !== false) {
mnet_set_public_key($uri, $public_certificate);
return $public_certificate;
} else {
debugging("Request for {$uri} returned public key for different URI - {$host}");
}
} else {
debugging("Request for {$uri} returned empty response");
}
} else {
debugging("Request for {$uri} returned unexpected result");
}
return false;
}
/**
* Get the remote machine's SSL Cert
*
* @param string $uri The URI of a file on the remote computer, including
* its http:// or https:// prefix
* @return string A PEM formatted SSL Certificate.
*/
function mnet_get_public_key($uri, $application=null) {
global $CFG, $DB;
$mnet = get_mnet_environment();
// The key may be cached in the mnet_set_public_key function...
// check this first
$key = mnet_set_public_key($uri);
if ($key != false) {
return $key;
}
if (empty($application)) {
$application = $DB->get_record('mnet_application', array('name'=>'moodle'));
}
$rq = xmlrpc_encode_request('system/keyswap', array($CFG->wwwroot, $mnet->public_key, $application->name), array("encoding" => "utf-8"));
$ch = curl_init($uri . $application->xmlrpc_server_url);
curl_setopt($ch, CURLOPT_TIMEOUT, 60);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'Moodle');
curl_setopt($ch, CURLOPT_POSTFIELDS, $rq);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: text/xml charset=UTF-8"));
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
// check for proxy
if (!empty($CFG->proxyhost) and !is_proxybypass($uri)) {
// SOCKS supported in PHP5 only
if (!empty($CFG->proxytype) and ($CFG->proxytype == 'SOCKS5')) {
if (defined('CURLPROXY_SOCKS5')) {
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
} else {
curl_close($ch);
print_error( 'socksnotsupported','mnet' );
}
}
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, false);
if (empty($CFG->proxyport)) {
curl_setopt($ch, CURLOPT_PROXY, $CFG->proxyhost);
} else {
curl_setopt($ch, CURLOPT_PROXY, $CFG->proxyhost.':'.$CFG->proxyport);
}
if (!empty($CFG->proxyuser) and !empty($CFG->proxypassword)) {
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $CFG->proxyuser.':'.$CFG->proxypassword);
if (defined('CURLOPT_PROXYAUTH')) {
// any proxy authentication if PHP 5.1
curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC | CURLAUTH_NTLM);
}
}
}
$res = xmlrpc_decode(curl_exec($ch));
// check for curl errors
$curlerrno = curl_errno($ch);
if ($curlerrno!=0) {
debugging("Request for $uri failed with curl error $curlerrno");
}
// check HTTP error code
$info = curl_getinfo($ch);
if (!empty($info['http_code']) and ($info['http_code'] != 200)) {
debugging("Request for $uri failed with HTTP code ".$info['http_code']);
}
curl_close($ch);
if (!is_array($res)) { // ! error
$public_certificate = $res;
$credentials=array();
if (strlen(trim($public_certificate))) {
$credentials = openssl_x509_parse($public_certificate);
$host = $credentials['subject']['CN'];
if (array_key_exists( 'subjectAltName', $credentials['subject'])) {
$host = $credentials['subject']['subjectAltName'];
}
if (strpos($uri, $host) !== false) {
mnet_set_public_key($uri, $public_certificate);
return $public_certificate;
}
else {
debugging("Request for $uri returned public key for different URI - $host");
}
}
else {
debugging("Request for $uri returned empty response");
}
}
else {
debugging( "Request for $uri returned unexpected result");
}
return false;
}