1 files changed, 30 insertions, 0 deletions
diff --git a/lib/public/Http/WellKnown/IHandler.php b/lib/public/Http/WellKnown/IHandler.php
new file mode 100644
index 00000000000..274d0241969
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+++ b/lib/public/Http/WellKnown/IHandler.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCP\Http\WellKnown;
+
+/**
+ * Interface for an app handler that reacts to requests to Nextcloud's well
+ * known URLs, e.g. to a WebFinger
+ *
+ * @ref https://tools.ietf.org/html/rfc5785
+ *
+ * @since 21.0.0
+ */
+interface IHandler {
+	/**
+	 * @param string $service the name of the well known service, e.g. 'webfinger'
+	 * @param IRequestContext $context
+	 * @param IResponse|null $previousResponse the response of the previous handler, if any
+	 *
+	 * @return IResponse|null a response object if the request could be handled, null otherwise
+	 *
+	 * @since 21.0.0
+	 */
+	public function handle(string $service, IRequestContext $context, ?IResponse $previousResponse): ?IResponse;
+}