3 files changed, 48 insertions, 0 deletions
diff --git a/apps/files_sharing/lib/AppInfo/Application.php b/apps/files_sharing/lib/AppInfo/Application.php
index 4c47d3fc2c0..8ddb3afaf33 100644
--- a/apps/files_sharing/lib/AppInfo/Application.php
+++ b/apps/files_sharing/lib/AppInfo/Application.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
@@ -12,6 +13,7 @@ use OC\User\DisplayNameCache;
 use OCA\Files\Event\LoadAdditionalScriptsEvent;
 use OCA\Files\Event\LoadSidebar;
 use OCA\Files_Sharing\Capabilities;
+use OCA\Files_Sharing\Config\ConfigLexicon;
 use OCA\Files_Sharing\External\Manager;
 use OCA\Files_Sharing\External\MountProvider as ExternalMountProvider;
 use OCA\Files_Sharing\Helper;
@@ -106,6 +108,8 @@ class Application extends App implements IBootstrap {
 
 		// File request auth
 		$context->registerEventListener(BeforeTemplateRenderedEvent::class, LoadPublicFileRequestAuthListener::class);
+
+		$context->registerConfigLexicon(ConfigLexicon::class);
 	}
 
 	public function boot(IBootContext $context): void {
diff --git a/apps/files_sharing/lib/Config/ConfigLexicon.php b/apps/files_sharing/lib/Config/ConfigLexicon.php
new file mode 100644
index 00000000000..a463b4e7ef2
--- /dev/null
+++ b/apps/files_sharing/lib/Config/ConfigLexicon.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Files_Sharing\Config;
+
+use NCU\Config\Lexicon\ConfigLexiconEntry;
+use NCU\Config\Lexicon\ConfigLexiconStrictness;
+use NCU\Config\Lexicon\IConfigLexicon;
+use NCU\Config\ValueType;
+
+/**
+ * Config Lexicon for files_sharing.
+ *
+ * Please Add & Manage your Config Keys in that file and keep the Lexicon up to date!
+ *
+ * {@see IConfigLexicon}
+ */
+class ConfigLexicon implements IConfigLexicon {
+	public const SHOW_FEDERATED_AS_INTERNAL = 'show_federated_shares_as_internal';
+
+	public function getStrictness(): ConfigLexiconStrictness {
+		return ConfigLexiconStrictness::IGNORE;
+	}
+
+	public function getAppConfigs(): array {
+		return [
+			new ConfigLexiconEntry(self::SHOW_FEDERATED_AS_INTERNAL, ValueType::BOOL, false, 'shows federated shares as internal shares', true),
+		];
+	}
+
+	public function getUserConfigs(): array {
+		return [];
+	}
+}
diff --git a/apps/files_sharing/lib/Listener/LoadSidebarListener.php b/apps/files_sharing/lib/Listener/LoadSidebarListener.php
index b00e937d675..9f0eee9159a 100644
--- a/apps/files_sharing/lib/Listener/LoadSidebarListener.php
+++ b/apps/files_sharing/lib/Listener/LoadSidebarListener.php
@@ -11,9 +11,12 @@ namespace OCA\Files_Sharing\Listener;
 
 use OCA\Files\Event\LoadSidebar;
 use OCA\Files_Sharing\AppInfo\Application;
+use OCA\Files_Sharing\Config\ConfigLexicon;
 use OCP\AppFramework\Services\IInitialState;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\IEventListener;
+use OCP\IAppConfig;
+use OCP\Server;
 use OCP\Share\IManager;
 use OCP\Util;
 
@@ -33,6 +36,8 @@ class LoadSidebarListener implements IEventListener {
 			return;
 		}
 
+		$appConfig = Server::get(IAppConfig::class);
+		$this->initialState->provideInitialState('showFederatedSharesAsInternal', $appConfig->getValueBool('files_sharing', ConfigLexicon::SHOW_FEDERATED_AS_INTERNAL));
 		Util::addScript(Application::APP_ID, 'files_sharing_tab', 'files');
 	}
 }