X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FModule%2FXrd.php;h=8e314400186269c2ac1c9e73f4bd3d9ff71e4ade;hb=3bca4fe2a64671d09e08346456cdfa6c12f996e9;hp=21cff563468d5496f825b7adbf46d7080dac5786;hpb=d2429b109601ab875f0ed0802b349edee07fba06;p=friendica.git

diff --git a/src/Module/Xrd.php b/src/Module/Xrd.php
index 21cff56346..8e31440018 100644
--- a/src/Module/Xrd.php
+++ b/src/Module/Xrd.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2023, the Friendica project
+ * @copyright Copyright (C) 2010-2024, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -38,6 +38,8 @@ class Xrd extends BaseModule
 {
 	protected function rawContent(array $request = [])
 	{
+		header('Vary: Accept', false);
+
 		// @TODO: Replace with parameter from router
 		if (DI::args()->getArgv()[0] == 'xrd') {
 			if (empty($_GET['uri'])) {
@@ -65,15 +67,23 @@ class Xrd extends BaseModule
 
 		if (substr($uri, 0, 4) === 'http') {
 			$name = ltrim(basename($uri), '~');
+			$host = parse_url($uri, PHP_URL_HOST);
 		} else {
 			$local = str_replace('acct:', '', $uri);
 			if (substr($local, 0, 2) == '//') {
 				$local = substr($local, 2);
 			}
 
-			$name = substr($local, 0, strpos($local, '@'));
+			list($name, $host) = explode('@', $local);
+		}
+
+		if (!empty($host) && $host !== DI::baseUrl()->getHost()) {
+			DI::logger()->notice('Invalid host name for xrd query',['host' => $host, 'uri' => $uri]);
+			throw new NotFoundException('Invalid host name for xrd query: ' . $host);
 		}
 
+		header('Vary: Accept', false);
+
 		if ($name == User::getActorName()) {
 			$owner = User::getSystemAccount();
 			if (empty($owner)) {
@@ -146,7 +156,7 @@ class Xrd extends BaseModule
 			]
 		];
 		header('Access-Control-Allow-Origin: *');
-		System::jsonExit($json, 'application/jrd+json; charset=utf-8');
+		$this->jsonExit($json, 'application/jrd+json; charset=utf-8');
 	}
 
 	private function printJSON(string $alias, array $owner, array $avatar)
@@ -223,7 +233,7 @@ class Xrd extends BaseModule
 		];
 
 		header('Access-Control-Allow-Origin: *');
-		System::jsonExit($json, 'application/jrd+json; charset=utf-8');
+		$this->jsonExit($json, 'application/jrd+json; charset=utf-8');
 	}
 
 	private function printXML(string $alias, array $owner, array $avatar)
@@ -320,7 +330,6 @@ class Xrd extends BaseModule
 		]);
 
 		header('Access-Control-Allow-Origin: *');
-
-		System::httpExit($xmlString, Response::TYPE_XML, 'application/xrd+xml');
+		$this->httpExit($xmlString, Response::TYPE_XML, 'application/xrd+xml');
 	}
 }