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Handle .ovpn file upload, auth-user-pass config, client svc start/stop

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billz 2019-11-16 10:10:25 +00:00
parent b412587249
commit d10d349e9a
1 changed files with 135 additions and 41 deletions
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176
includes/openvpn.php
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@ -9,56 +9,150 @@ include_once('includes/status_messages.php');
*/
function DisplayOpenVPNConfig()
{
exec('cat '. RASPI_OPENVPN_CLIENT_CONFIG, $returnClient);
exec('cat '. RASPI_OPENVPN_SERVER_CONFIG, $returnServer);
exec('pidof openvpn | wc -l', $openvpnstatus);
// parse client settings
foreach ($returnClient as $a) {
if ($a[0] != "#") {
$arrLine = explode(" ", $a) ;
$arrClientConfig[$arrLine[0]]=$arrLine[1];
}
}
// parse server settings
foreach ($returnServer as $a) {
if ($a[0] != "#") {
$arrLine = explode(" ", $a) ;
$arrServerConfig[$arrLine[0]]=$arrLine[1];
}
}
echo renderTemplate("openvpn", compact(
"status",
"openvpnStatus"
));
}
/**
*
*
*/
function SaveOpenVPNConfig()
{
$status = new StatusMessages();
$errors = false;
if (isset($_POST['SaveOpenVPNSettings'])) {
// TODO
// TODO: validate $authUser, $authPassword
// Validate input
if (empty($_POST['authUser'])) {
$status->addMessage('Username cannot be empty', 'danger');
$errors = true;
} else {
$authUser = $_POST['authUser'];
}
if (empty($_POST['authPassword'])) {
$status->addMessage('Password cannot be empty', 'danger');
$errors = true;
} else {
$authPassword = $_POST['authPassword'];
}
if (!$errors) {
$return = SaveOpenVPNConfig($status, $_FILES['customFile'], $authUser, $authPassword);
}
} elseif (isset($_POST['StartOpenVPN'])) {
echo "Attempting to start openvpn";
exec('sudo systemctl start openvpn.service', $return);
$status->addMessage('Attempting to start OpenVPN', 'info');
exec('sudo /bin/systemctl start openvpn-client@client', $return);
foreach ($return as $line) {
$status->addMessage($line, 'info');
}
} elseif (isset($_POST['StopOpenVPN'])) {
echo "Attempting to stop openvpn";
exec('sudo systemctl stop openvpn.service', $return);
$status->addMessage('Attempting to stop OpenVPN', 'info');
exec('sudo /bin/systemctl stop openvpn-client@client', $return);
foreach ($return as $line) {
$status->addMessage($line, 'info');
$status->addMessage($line, 'info');
}
}
}
$auth = file(RASPI_OPENVPN_CLIENT_LOGIN, FILE_IGNORE_NEW_LINES);
exec('pidof openvpn | wc -l', $openvpnstatus);
$serviceStatus = $openvpnstatus[0] == 0 ? "down" : "up";
// parse client auth credentials
if (!empty($auth)) {
$authUser = $auth[0];
$authPassword = $auth[1];
}
echo renderTemplate("openvpn", compact(
"status",
"serviceStatus",
"openvpnstatus",
"authUser",
"authPassword"
));
}
?>
/**
*
* Validates uploaded .ovpn file, adds auth-user-pass and
* stores auth credentials in login.conf. Copies files from
* tmp to OpenVPN
*
* @param object $status
* @param object $file
* @param string $authUser
* @param string $authPassword
* @return object $status
*/
function SaveOpenVPNConfig($status, $file, $authUser, $authPassword)
{
try {
// If undefined or multiple files, treat as invalid
if (!isset($file['error']) || is_array($file['error'])) {
throw new RuntimeException('Invalid parameters');
}
// Parse returned errors
switch ($file['error']) {
case UPLOAD_ERR_OK:
break;
case UPLOAD_ERR_NO_FILE:
throw new RuntimeException('OpenVPN configuration file not sent');
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
throw new RuntimeException('Exceeded filesize limit');
default:
throw new RuntimeException('Unknown errors');
}
// Validate extension
$ext = pathinfo($file['name'], PATHINFO_EXTENSION);
if ($ext != 'ovpn') {
throw new RuntimeException('Invalid file extension');
}
// Validate MIME type
$finfo = new finfo(FILEINFO_MIME_TYPE);
if (false === $ext = array_search(
$finfo->file($file['tmp_name']),
array(
'ovpn' => 'text/plain'
),
true
)) {
throw new RuntimeException('Invalid file format');
}
// Validate filesize
define('KB', 1024);
if ($file['size'] > 128*KB) {
throw new RuntimeException('File size limit exceeded');
}
// Use safe filename, save to /tmp
if (!move_uploaded_file(
$file['tmp_name'],
sprintf(
'/tmp/%s.%s',
'ovpnclient',
$ext
)
)) {
throw new RuntimeException('Unable to move uploaded file');
}
// Good upload, update /tmp client conf with auth-user-pass
exec('sudo /etc/raspap/openvpn/configauth.sh', $return);
foreach ($return as $line) {
$status->addMessage($line, 'info');
}
// Copy /tmp file to /etc/openvpn
system('sudo cp /tmp/ovpnclient.ovpn ' . RASPI_OPENVPN_CLIENT_CONFIG, $return);
// Copy /tmp/authdata to /etc/openvpn/login.conf
$auth = $authUser .PHP_EOL . $authPassword .PHP_EOL;
file_put_contents("/tmp/authdata", $auth);
system('sudo cp /tmp/authdata ' . RASPI_OPENVPN_CLIENT_LOGIN, $return);
if ($return ==0) {
$status->addMessage('OpenVPN .conf file uploaded successfully', 'info');
} else {
$status->addMessage('Unable to save OpenVPN settings', 'danger');
}
return $status;
} catch (RuntimeException $e) {
$status->addMessage($e->getMessage(), 'danger');
return $status;
}
}