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<?php
// nginx (and others?) auth_request style endpoint
// returns 200 for allowed requests
// otherwise, returns 401 and sends the login page url as a header
// if request header X-Original-Uri is given, it puts it as the post-login redir
function addHeader(array $config, string $baseName, string $value): void {
$prefix = $config['integration']['header-prefix'];
header("$prefix-$baseName: $value");
}
function GET(array $config) {
$session = Psso\Session::get();
$identity = $session->getIdentity();
if (isset($identity)) {
// ok
addHeader($config, 'User', $identity->user);
addHeader($config, 'Groups', implode(',', $identity->groups));
foreach ($identity->extras as $key => $value) {
if ($value !== null) addHeader($config, ucfirst($key), $value);
}
return;
}
http_response_code(401);
$login = 'https://' . $config['site']['primary-domain'] . '/login';
if (isset($_SERVER['HTTP_X_ORIGINAL_URI'])) {
$login .= '?next=' . urlencode($_SERVER['HTTP_X_ORIGINAL_URI']);
}
addHeader($config, 'Location', $login);
}
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