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diff --git a/lib/public/DirectEditing/IEditor.php b/lib/public/DirectEditing/IEditor.php
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+++ b/lib/public/DirectEditing/IEditor.php
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+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCP\DirectEditing;
+
+use OCP\AppFramework\Http\Response;
+
+/**
+ * @since 18.0.0
+ */
+interface IEditor {
+	/**
+	 * Return a unique identifier for the editor
+	 *
+	 * e.g. richdocuments
+	 *
+	 * @since 18.0.0
+	 * @return string
+	 */
+	public function getId(): string;
+
+	/**
+	 * Return a readable name for the editor
+	 *
+	 * e.g. Collabora Online
+	 *
+	 * @since 18.0.0
+	 * @return string
+	 */
+	public function getName(): string;
+
+	/**
+	 * A list of mimetypes that should open the editor by default
+	 *
+	 * @since 18.0.0
+	 * @return string[]
+	 */
+	public function getMimetypes(): array;
+
+	/**
+	 * A list of mimetypes that can be opened in the editor optionally
+	 *
+	 * @since 18.0.0
+	 * @return string[]
+	 */
+	public function getMimetypesOptional(): array;
+
+	/**
+	 * Return a list of file creation options to be presented to the user
+	 *
+	 * @since 18.0.0
+	 * @return ACreateFromTemplate[]|ACreateEmpty[]
+	 */
+	public function getCreators(): array;
+
+	/**
+	 * Return if the view is able to securely view a file without downloading it to the browser
+	 *
+	 * @since 18.0.0
+	 * @return bool
+	 */
+	public function isSecure(): bool;
+
+	/**
+	 * Return a template response for displaying the editor
+	 *
+	 * open can only be called once when the client requests the editor with a one-time-use token
+	 * For handling editing and later requests, editors need to implement their own token handling and take care of invalidation
+	 *
+	 * This behavior is similar to the current direct editing implementation in collabora where we generate a one-time token and switch over to the regular wopi token for the actual editing/saving process
+	 *
+	 * @since 18.0.0
+	 * @return Response
+	 */
+	public function open(IToken $token): Response;
+}