diff --git a/mod/openid.php b/mod/openid.php
deleted file mode 100644
index fc7336a548..0000000000
--- a/mod/openid.php
+++ /dev/null
@@ -1,82 +0,0 @@
-<?php
-/**
- * @file mod/openid.php
- */
-
-use Friendica\App;
-use Friendica\BaseObject;
-use Friendica\App\Authentication;
-use Friendica\Core\Config;
-use Friendica\Core\L10n;
-use Friendica\Core\Logger;
-use Friendica\Core\Session;
-use Friendica\Database\DBA;
-use Friendica\Util\Strings;
-
-function openid_content(App $a) {
-
-	if (Config::get('system','no_openid')) {
-		$a->internalRedirect();
-	}
-
-	Logger::log('mod_openid ' . print_r($_REQUEST,true), Logger::DATA);
-
-	if (!empty($_GET['openid_mode']) && !empty($_SESSION['openid'])) {
-
-		$openid = new LightOpenID($a->getHostName());
-
-		if ($openid->validate()) {
-			$authid = $openid->data['openid_identity'];
-
-			if (empty($authid)) {
-				Logger::log(L10n::t('OpenID protocol error. No ID returned.') . EOL);
-				$a->internalRedirect();
-			}
-
-			// NOTE: we search both for normalised and non-normalised form of $authid
-			//       because the normalization step was removed from setting
-			//       mod/settings.php in 8367cad so it might have left mixed
-			//       records in the user table
-			//
-			$condition = ['blocked' => false, 'account_expired' => false, 'account_removed' => false, 'verified' => true,
-				'openid' => [$authid, Strings::normaliseOpenID($authid)]];
-			$user  = DBA::selectFirst('user', [], $condition);
-			if (DBA::isResult($user)) {
-
-				// successful OpenID login
-
-				unset($_SESSION['openid']);
-
-				/** @var Authentication $authentication */
-				$authentication = BaseObject::getClass(Authentication::class);
-				$authentication->setForUser($a, $user, true, true);
-
-				// just in case there was no return url set
-				// and we fell through
-
-				$a->internalRedirect();
-			}
-
-			// Successful OpenID login - but we can't match it to an existing account.
-			unset($_SESSION['register']);
-			Session::set('openid_attributes', $openid->getAttributes());
-			Session::set('openid_identity', $authid);
-
-			// Detect the server URL
-			$open_id_obj = new LightOpenID($a->getHostName());
-			$open_id_obj->identity = $authid;
-			Session::set('openid_server', $open_id_obj->discover($open_id_obj->identity));
-
-			if (intval(Config::get('config', 'register_policy')) === \Friendica\Module\Register::CLOSED) {
-				notice(L10n::t('Account not found. Please login to your existing account to add the OpenID to it.'));
-			} else {
-				notice(L10n::t('Account not found. Please register a new account or login to your existing account to add the OpenID to it.'));
-			}
-
-			$a->internalRedirect('login');
-		}
-	}
-	notice(L10n::t('Login failed.') . EOL);
-	$a->internalRedirect();
-	// NOTREACHED
-}
diff --git a/src/Module/Security/OpenID.php b/src/Module/Security/OpenID.php
new file mode 100644
index 0000000000..f33c5e54d1
--- /dev/null
+++ b/src/Module/Security/OpenID.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Friendica\Module\Security;
+
+use Friendica\App\Authentication;
+use Friendica\App\BaseURL;
+use Friendica\BaseModule;
+use Friendica\Core\Config\Configuration;
+use Friendica\Core\L10n\L10n;
+use Friendica\Core\Session\ISession;
+use Friendica\Database\Database;
+use Friendica\Util\Strings;
+use LightOpenID;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Performs an login with OpenID
+ */
+class OpenID extends BaseModule
+{
+	public static function init(array $parameters = [])
+	{
+		/** @var Configuration $config */
+		$config = self::getClass(Configuration::class);
+		/** @var BaseURL $baseUrl */
+		$baseUrl = self::getClass(BaseURL::class);
+
+		if ($config->get('system', 'no_openid')) {
+			$baseUrl->redirect();
+		}
+	}
+
+	public static function content(array $parameters = [])
+	{
+		/** @var LoggerInterface $logger */
+		$logger = self::getClass(LoggerInterface::class);
+
+		$logger->debug('mod_openid.', ['request' => $_REQUEST]);
+
+		/** @var ISession $session */
+		$session = self::getClass(ISession::class);
+
+		if (!empty($_GET['openid_mode']) && !empty($session->get('openid'))) {
+
+			/** @var BaseURL $baseUrl */
+			$baseUrl = self::getClass(BaseURL::class);
+
+			$openid = new LightOpenID($baseUrl->getHostname());
+
+			/** @var L10n $l10n */
+			$l10n = self::getClass(L10n::class);
+
+			if ($openid->validate()) {
+				$authId = $openid->data['openid_identity'];
+
+				if (empty($authId)) {
+					$logger->info($l10n->t('OpenID protocol error. No ID returned'));
+					$baseUrl->redirect();
+				}
+
+				// NOTE: we search both for normalised and non-normalised form of $authid
+				//       because the normalization step was removed from setting
+				//       mod/settings.php in 8367cad so it might have left mixed
+				//       records in the user table
+				//
+				$condition = ['blocked' => false, 'account_expired' => false, 'account_removed' => false, 'verified' => true,
+				              'openid' => [$authId, Strings::normaliseOpenID($authId)]];
+
+				$dba = self::getClass(Database::class);
+
+				$user  = $dba->selectFirst('user', [], $condition);
+				if ($dba->isResult($user)) {
+
+					// successful OpenID login
+					$session->remove('openid');
+
+					/** @var Authentication $auth */
+					$auth = self::getClass(Authentication::class);
+					$auth->setForUser(self::getApp(), $user, true, true);
+
+					// just in case there was no return url set
+					// and we fell through
+					$baseUrl->redirect();
+				}
+
+				// Successful OpenID login - but we can't match it to an existing account.
+				$session->remove('register');
+				$session->set('openid_attributes', $openid->getAttributes());
+				$session->set('openid_identity', $authId);
+
+				// Detect the server URL
+				$open_id_obj = new LightOpenID($baseUrl->getHostName());
+				$open_id_obj->identity = $authId;
+				$session->set('openid_server', $open_id_obj->discover($open_id_obj->identity));
+
+				$config = self::getClass(Configuration::class);
+
+				if (intval($config->get('config', 'register_policy')) === \Friendica\Module\Register::CLOSED) {
+					notice($l10n->t('Account not found. Please login to your existing account to add the OpenID to it.'));
+				} else {
+					notice($l10n->t('Account not found. Please register a new account or login to your existing account to add the OpenID to it.'));
+				}
+
+				$baseUrl->redirect('login');
+			}
+		}
+	}
+}
diff --git a/static/routes.config.php b/static/routes.config.php
index d23b092169..15e7383a4b 100644
--- a/static/routes.config.php
+++ b/static/routes.config.php
@@ -178,9 +178,10 @@ return [
 		'/h2b'    => [Module\Oembed::class, [R::GET]],
 		'/{hash}' => [Module\Oembed::class, [R::GET]],
 	],
-	'/outbox/{owner}' => [Module\Outbox::class,     [R::GET]],
-	'/owa'            => [Module\Owa::class,        [R::GET]],
-	'/opensearch'     => [Module\OpenSearch::class, [R::GET]],
+	'/outbox/{owner}' => [Module\Outbox::class,          [R::GET]],
+	'/owa'            => [Module\Owa::class,             [R::GET]],
+	'/openid'         => [Module\Security\OpenID::class, [R::GET]],
+	'/opensearch'     => [Module\OpenSearch::class,      [R::GET]],
 
 	'/photo' => [
 		'/{name}'                    => [Module\Photo::class, [R::GET]],