Provide OpenWebAuth related data

src/Model/GServer.php

@@ -737,7 +737,7 @@ class GServer
 			}
 		}
 
-		if (in_array($serverdata['platform'] ?? '', ['hubzilla', 'streams', 'osada', 'mistpark', 'roadhouse', 'zap'])) {
+		if (in_array($serverdata['platform'] ?? '', ['friendica', 'hubzilla', 'streams', 'osada', 'mistpark', 'roadhouse', 'zap'])) {
 			$serverdata = self::getZotData($url, $serverdata);
 		}
 
@@ -1673,7 +1673,7 @@ class GServer
 			$serverdata['info'] = $data['location'];
 		}
 
-		if (!empty($data['project']) && in_array($data['project'], ['hubzilla', 'streams', 'osada', 'mistpark', 'roadhouse', 'zap'])) {
+		if (!empty($data['project']) && in_array($data['project'], ['friendica', 'hubzilla', 'streams', 'osada', 'mistpark', 'roadhouse', 'zap'])) {
 			$serverdata['platform'] = $data['project'];
 		}
 
@@ -1692,9 +1692,6 @@ class GServer
 				case 'approve':
 					$serverdata['register_policy'] = Register::APPROVE;
 					break;
-				default:
-					echo $data['register_policy'] . "\n";
-					break;
 			}
 		}
 
@@ -2568,17 +2565,17 @@ class GServer
 			return;
 		}
 
-		$gserver = DBA::selectFirst('gserver', ['openwebauth'], ['id' => $data['gsid']]);
+		$gserver = DBA::selectFirst('gserver', ['url', 'openwebauth'], ['id' => $data['gsid']]);
 		if (!DBA::isResult($gserver)) {
 			return;
 		}
 
-		if ($data['openwebauth'] == $gserver['openwebauth']) {
-			return;
+		$serverdata = self::getZotData($gserver['url'], []);
+		if (empty($serverdata)) {
+			$serverdata = ['openwebauth' => $data['openwebauth']];
 		}
 
-		Logger::debug('Set Open Web Auth path', ['baseurl' => $data['baseurl'], 'openwebauth' => $data['openwebauth']]);
-		self::update(['openwebauth' => $data['openwebauth']], ['id' => $data['gsid']]);
+		self::update($serverdata, ['id' => $data['gsid']]);
 	}
 
 	/**

src/Module/Home.php

@@ -28,6 +28,7 @@ use Friendica\DI;
 use Friendica\Model\User;
 use Friendica\Module\Security\Login;
 use Friendica\Protocol\ActivityPub;
+use Friendica\Protocol\ZOT;
 
 /**
  * Home module - Landing page of the current node
@@ -38,6 +39,8 @@ class Home extends BaseModule
 	{
 		if (ActivityPub::isRequest()) {
 			DI::baseUrl()->redirect(User::getActorName());
+		} elseif (ZOT::isRequest()) {
+			$this->jsonExit(ZOT::getSiteInfo(), 'application/x-zot+json');
 		}
 	}
 

src/Protocol/ZOT.php

@@ -0,0 +1,80 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2024, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Protocol;
+
+use Friendica\App;
+use Friendica\Core\Addon;
+use Friendica\Core\Logger;
+use Friendica\DI;
+use Friendica\Module;
+use Friendica\Module\Register;
+
+/**
+ * ZOT Protocol class
+ *
+ * This class contains functionality that is needed for OpenWebAuth, which is part of ZOT.
+ * Friendica doesn't support the ZOT protocol itself.
+ */
+class ZOT
+{
+	/**
+	 * Checks if the web request is done for the AP protocol
+	 *
+	 * @return bool is it ZOT?
+	 */
+	public static function isRequest(): bool
+	{
+		if (stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/x-zot+json')) {
+			Logger::debug('Is ZOT request', ['accept' => $_SERVER['HTTP_ACCEPT'], 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '']);
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Get information about this site
+	 *
+	 * @return array
+	 */
+	public static function getSiteInfo(): array
+	{
+		$policies = [
+			Module\Register::OPEN    => 'open',
+			Module\Register::APPROVE => 'approve',
+			Module\Register::CLOSED  => 'closed',
+		];
+
+		return [
+			'url'             => (string)DI::baseUrl(),
+			'openWebAuth'     => (string)DI::baseUrl() . '/owa',
+			'authRedirect'    => (string)DI::baseUrl() . '/magic',
+			'register_policy' => $policies[Register::getPolicy()],
+			'accounts'        => DI::keyValue()->get('nodeinfo_total_users'),
+			'plugins'         => Addon::getVisibleList(),
+			'sitename'        => DI::config()->get('config', 'sitename'),
+			'about'           => DI::config()->get('config', 'info'),
+			'project'         => App::PLATFORM,
+			'version'         => App::VERSION,
+		];
+	}
+}