feat(files_sharing): Toggle display for trusted server shares

Signed-off-by: nfebe <fenn25.fn@gmail.com>

14 files changed, 253 insertions, 23 deletions

diff --git a/apps/files_sharing/lib/Config/ConfigLexicon.php b/apps/files_sharing/lib/Config/ConfigLexicon.php
index a463b4e7ef2..fb2821e7f56 100644
--- a/apps/files_sharing/lib/Config/ConfigLexicon.php
+++ b/apps/files_sharing/lib/Config/ConfigLexicon.php
@@ -22,6 +22,7 @@ use NCU\Config\ValueType;
  */
 class ConfigLexicon implements IConfigLexicon {
 	public const SHOW_FEDERATED_AS_INTERNAL = 'show_federated_shares_as_internal';
+	public const SHOW_FEDERATED_TO_TRUSTED_AS_INTERNAL = 'show_federated_shares_to_trusted_servers_as_internal';
 
 	public function getStrictness(): ConfigLexiconStrictness {
 		return ConfigLexiconStrictness::IGNORE;
@@ -30,6 +31,7 @@ class ConfigLexicon implements IConfigLexicon {
 	public function getAppConfigs(): array {
 		return [
 			new ConfigLexiconEntry(self::SHOW_FEDERATED_AS_INTERNAL, ValueType::BOOL, false, 'shows federated shares as internal shares', true),
+			new ConfigLexiconEntry(self::SHOW_FEDERATED_TO_TRUSTED_AS_INTERNAL, ValueType::BOOL, false, 'shows federated shares to trusted servers as internal shares', true),
 		];
 	}
 
diff --git a/apps/files_sharing/lib/Controller/ShareAPIController.php b/apps/files_sharing/lib/Controller/ShareAPIController.php
index a19eb50faf7..5660f4d84e3 100644
--- a/apps/files_sharing/lib/Controller/ShareAPIController.php
+++ b/apps/files_sharing/lib/Controller/ShareAPIController.php
@@ -14,6 +14,7 @@ use OC\Files\FileInfo;
 use OC\Files\Storage\Wrapper\Wrapper;
 use OCA\Circles\Api\v1\Circles;
 use OCA\Deck\Sharing\ShareAPIHelper;
+use OCA\Federation\TrustedServers;
 use OCA\Files\Helper;
 use OCA\Files_Sharing\Exceptions\SharingRightsException;
 use OCA\Files_Sharing\External\Storage;
@@ -74,6 +75,7 @@ use Psr\Log\LoggerInterface;
 class ShareAPIController extends OCSController {
 
 	private ?Node $lockedNode = null;
+	private array $trustedServerCache = [];
 
 	/**
 	 * Share20OCS constructor.
@@ -97,6 +99,7 @@ class ShareAPIController extends OCSController {
 		private IProviderFactory $factory,
 		private IMailer $mailer,
 		private ITagManager $tagManager,
+		private ?TrustedServers $trustedServers,
 		private ?string $userId = null,
 	) {
 		parent::__construct($appName, $request);
@@ -199,6 +202,32 @@ class ShareAPIController extends OCSController {
 		$result['item_size'] = $node->getSize();
 		$result['item_mtime'] = $node->getMTime();
 
+		if ($this->trustedServers !== null && in_array($share->getShareType(), [IShare::TYPE_REMOTE, IShare::TYPE_REMOTE_GROUP], true)) {
+			$result['is_trusted_server'] = false;
+			$sharedWith = $share->getSharedWith();
+			$remoteIdentifier = is_string($sharedWith) ? strrchr($sharedWith, '@') : false;
+			if ($remoteIdentifier !== false) {
+				$remote = substr($remoteIdentifier, 1);
+
+				if (isset($this->trustedServerCache[$remote])) {
+					$result['is_trusted_server'] = $this->trustedServerCache[$remote];
+				} else {
+					try {
+						$isTrusted = $this->trustedServers->isTrustedServer($remote);
+						$this->trustedServerCache[$remote] = $isTrusted;
+						$result['is_trusted_server'] = $isTrusted;
+					} catch (\Exception $e) {
+						// Server not found or other issue, we consider it not trusted
+						$this->trustedServerCache[$remote] = false;
+						$this->logger->error(
+							'Error checking if remote server is trusted (treating as untrusted): ' . $e->getMessage(),
+							['exception' => $e]
+						);
+					}
+				}
+			}
+		}
+
 		$expiration = $share->getExpirationDate();
 		if ($expiration !== null) {
 			$expiration->setTimezone($this->dateTimeZone->getTimeZone());
diff --git a/apps/files_sharing/lib/Listener/LoadSidebarListener.php b/apps/files_sharing/lib/Listener/LoadSidebarListener.php
index 9f0eee9159a..88c39f38545 100644
--- a/apps/files_sharing/lib/Listener/LoadSidebarListener.php
+++ b/apps/files_sharing/lib/Listener/LoadSidebarListener.php
@@ -38,6 +38,7 @@ class LoadSidebarListener implements IEventListener {
 
 		$appConfig = Server::get(IAppConfig::class);
 		$this->initialState->provideInitialState('showFederatedSharesAsInternal', $appConfig->getValueBool('files_sharing', ConfigLexicon::SHOW_FEDERATED_AS_INTERNAL));
+		$this->initialState->provideInitialState('showFederatedSharesToTrustedServersAsInternal', $appConfig->getValueBool('files_sharing', ConfigLexicon::SHOW_FEDERATED_TO_TRUSTED_AS_INTERNAL));
 		Util::addScript(Application::APP_ID, 'files_sharing_tab', 'files');
 	}
 }
diff --git a/apps/files_sharing/lib/ResponseDefinitions.php b/apps/files_sharing/lib/ResponseDefinitions.php
index 6b6b0fcc4b6..71a2b25a70c 100644
--- a/apps/files_sharing/lib/ResponseDefinitions.php
+++ b/apps/files_sharing/lib/ResponseDefinitions.php
@@ -22,6 +22,7 @@ namespace OCA\Files_Sharing;
  *     file_target: string,
  *     has_preview: bool,
  *     hide_download: 0|1,
+ *     is_trusted_server?: bool,
  *     is-mount-root: bool,
  *     id: string,
  *     item_mtime: int,
diff --git a/apps/files_sharing/openapi.json b/apps/files_sharing/openapi.json
index 627c25ce8ea..aed112b17f1 100644
--- a/apps/files_sharing/openapi.json
+++ b/apps/files_sharing/openapi.json
@@ -548,6 +548,9 @@
                             1
                         ]
                     },
+                    "is_trusted_server": {
+                        "type": "boolean"
+                    },
                     "is-mount-root": {
                         "type": "boolean"
                     },
diff --git a/apps/files_sharing/src/components/SharingEntry.vue b/apps/files_sharing/src/components/SharingEntry.vue
index 4ff5fae364b..1fbe740cb11 100644
--- a/apps/files_sharing/src/components/SharingEntry.vue
+++ b/apps/files_sharing/src/components/SharingEntry.vue
@@ -77,9 +77,9 @@ export default {
 				title += ` (${t('files_sharing', 'group')})`
 			} else if (this.share.type === ShareType.Room) {
 				title += ` (${t('files_sharing', 'conversation')})`
-			} else if (this.share.type === ShareType.Remote) {
+			} else if (this.share.type === ShareType.Remote && !this.share.isTrustedServer) {
 				title += ` (${t('files_sharing', 'remote')})`
-			} else if (this.share.type === ShareType.RemoteGroup) {
+			} else if (this.share.type === ShareType.RemoteGroup && !this.share.isTrustedServer) {
 				title += ` (${t('files_sharing', 'remote group')})`
 			} else if (this.share.type === ShareType.Guest) {
 				title += ` (${t('files_sharing', 'guest')})`
diff --git a/apps/files_sharing/src/components/SharingInput.vue b/apps/files_sharing/src/components/SharingInput.vue
index b886ba95a17..f50dc96fc08 100644
--- a/apps/files_sharing/src/components/SharingInput.vue
+++ b/apps/files_sharing/src/components/SharingInput.vue
@@ -192,14 +192,27 @@ export default {
 				lookup = true
 			}
 
-			let shareType = []
-
 			const remoteTypes = [ShareType.Remote, ShareType.RemoteGroup]
-
-			if (this.isExternal && !this.config.showFederatedSharesAsInternal) {
-				shareType.push(...remoteTypes)
+			const shareType = []
+
+			const showFederatedAsInternal
+	= this.config.showFederatedSharesAsInternal
+	|| this.config.showFederatedSharesToTrustedServersAsInternal
+
+			const shouldAddRemoteTypes
+	// For internal users, add remote types if config says to show them as internal
+	= (!this.isExternal && showFederatedAsInternal)
+	// For external users, add them if config *doesn't* say to show them as internal
+	|| (this.isExternal && !showFederatedAsInternal)
+	// Edge case: federated-to-trusted is a separate "add" trigger for external users
+	|| (this.isExternal && this.config.showFederatedSharesToTrustedServersAsInternal)
+
+			if (this.isExternal) {
+				if (getCapabilities().files_sharing.public.enabled === true) {
+					shareType.push(ShareType.Email)
+				}
 			} else {
-				shareType = shareType.concat([
+				shareType.push(
 					ShareType.User,
 					ShareType.Group,
 					ShareType.Team,
@@ -207,15 +220,11 @@ export default {
 					ShareType.Guest,
 					ShareType.Deck,
 					ShareType.ScienceMesh,
-				])
-
-				if (this.config.showFederatedSharesAsInternal) {
-					shareType.push(...remoteTypes)
-				}
+				)
 			}
 
-			if (getCapabilities().files_sharing.public.enabled === true && this.isExternal) {
-				shareType.push(ShareType.Email)
+			if (shouldAddRemoteTypes) {
+				shareType.push(...remoteTypes)
 			}
 
 			let request = null
@@ -366,6 +375,11 @@ export default {
 
 					// filter out existing mail shares
 					if (share.value.shareType === ShareType.Email) {
+						// When sharing internally, we don't want to suggest email addresses
+						// that the user previously created shares to
+						if (!this.isExternal) {
+							return arr
+						}
 						const emails = this.linkShares.map(elem => elem.shareWith)
 						if (emails.indexOf(share.value.shareWith.trim()) !== -1) {
 							return arr
diff --git a/apps/files_sharing/src/models/Share.ts b/apps/files_sharing/src/models/Share.ts
index fb76a655d53..b0638b29448 100644
--- a/apps/files_sharing/src/models/Share.ts
+++ b/apps/files_sharing/src/models/Share.ts
@@ -486,4 +486,11 @@ export default class Share {
 		return this._share.status
 	}
 
+	/**
+	 * Is the share from a trusted server
+	 */
+	get isTrustedServer(): boolean {
+		return !!this._share.is_trusted_server
+	}
+
 }
diff --git a/apps/files_sharing/src/services/ConfigService.ts b/apps/files_sharing/src/services/ConfigService.ts
index 2114e2d1bae..f75f34c7936 100644
--- a/apps/files_sharing/src/services/ConfigService.ts
+++ b/apps/files_sharing/src/services/ConfigService.ts
@@ -315,4 +315,12 @@ export default class Config {
 		return loadState('files_sharing', 'showFederatedSharesAsInternal', false)
 	}
 
+	/**
+	 * Show federated shares to trusted servers as internal shares
+	 * @return {boolean}
+	 */
+	get showFederatedSharesToTrustedServersAsInternal(): boolean {
+		return loadState('files_sharing', 'showFederatedSharesToTrustedServersAsInternal', false)
+	}
+
 }
diff --git a/apps/files_sharing/src/views/SharingLinkList.vue b/apps/files_sharing/src/views/SharingLinkList.vue
index 3dd6fdf317b..c3d9a7f83dc 100644
--- a/apps/files_sharing/src/views/SharingLinkList.vue
+++ b/apps/files_sharing/src/views/SharingLinkList.vue
@@ -7,12 +7,6 @@
 	<ul v-if="canLinkShare"
 		:aria-label="t('files_sharing', 'Link shares')"
 		class="sharing-link-list">
-		<!-- If no link shares, show the add link default entry -->
-		<SharingEntryLink v-if="!hasLinkShares && canReshare"
-			:can-reshare="canReshare"
-			:file-info="fileInfo"
-			@add:share="addShare" />
-
 		<!-- Else we display the list -->
 		<template v-if="hasShares">
 			<!-- using shares[index] to work with .sync -->
@@ -27,6 +21,12 @@
 				@remove:share="removeShare"
 				@open-sharing-details="openSharingDetails(share)" />
 		</template>
+
+		<!-- If no link shares, show the add link default entry -->
+		<SharingEntryLink v-if="!hasLinkShares && canReshare"
+			:can-reshare="canReshare"
+			:file-info="fileInfo"
+			@add:share="addShare" />
 	</ul>
 </template>
 
diff --git a/apps/files_sharing/src/views/SharingTab.vue b/apps/files_sharing/src/views/SharingTab.vue
index 82a11dea2e0..3a676fd973a 100644
--- a/apps/files_sharing/src/views/SharingTab.vue
+++ b/apps/files_sharing/src/views/SharingTab.vue
@@ -402,7 +402,13 @@ export default {
 					if ([ShareType.Link, ShareType.Email].includes(share.type)) {
 						this.linkShares.push(share)
 					} else if ([ShareType.Remote, ShareType.RemoteGroup].includes(share.type)) {
-						if (this.config.showFederatedSharesAsInternal) {
+						if (this.config.showFederatedSharesToTrustedServersAsInternal) {
+							if (share.isTrustedServer) {
+								this.shares.push(share)
+							} else {
+								this.externalShares.push(share)
+							}
+						} else if (this.config.showFederatedSharesAsInternal) {
 							this.shares.push(share)
 						} else {
 							this.externalShares.push(share)
@@ -478,6 +484,10 @@ export default {
 			} else if ([ShareType.Remote, ShareType.RemoteGroup].includes(share.type)) {
 				if (this.config.showFederatedSharesAsInternal) {
 					this.shares.unshift(share)
+				} if (this.config.showFederatedSharesToTrustedServersAsInternal) {
+					if (share.isTrustedServer) {
+						this.shares.unshift(share)
+					}
 				} else {
 					this.externalShares.unshift(share)
 				}
diff --git a/apps/files_sharing/tests/ApiTest.php b/apps/files_sharing/tests/ApiTest.php
index bb686c1ea8c..bace915351a 100644
--- a/apps/files_sharing/tests/ApiTest.php
+++ b/apps/files_sharing/tests/ApiTest.php
@@ -12,6 +12,7 @@ use OC\Files\FileInfo;
 use OC\Files\Filesystem;
 use OC\Files\Storage\Temporary;
 use OC\Files\View;
+use OCA\Federation\TrustedServers;
 use OCA\Files_Sharing\Controller\ShareAPIController;
 use OCP\App\IAppManager;
 use OCP\AppFramework\OCS\OCSBadRequestException;
@@ -114,6 +115,7 @@ class ApiTest extends TestCase {
 		$providerFactory = $this->createMock(IProviderFactory::class);
 		$mailer = $this->createMock(IMailer::class);
 		$tagManager = $this->createMock(ITagManager::class);
+		$trustedServers = $this->createMock(TrustedServers::class);
 		$dateTimeZone->method('getTimeZone')->willReturn(new \DateTimeZone(date_default_timezone_get()));
 
 		return new ShareAPIController(
@@ -135,6 +137,7 @@ class ApiTest extends TestCase {
 			$providerFactory,
 			$mailer,
 			$tagManager,
+			$trustedServers,
 			$userId,
 		);
 	}
diff --git a/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php b/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
index 8bb220d684b..598789cdba1 100644
--- a/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
@@ -7,6 +7,7 @@
  */
 namespace OCA\Files_Sharing\Tests\Controller;
 
+use OCA\Federation\TrustedServers;
 use OCA\Files_Sharing\Controller\ShareAPIController;
 use OCP\App\IAppManager;
 use OCP\AppFramework\Http\DataResponse;
@@ -80,6 +81,7 @@ class ShareAPIControllerTest extends TestCase {
 	private IProviderFactory&MockObject $factory;
 	private IMailer&MockObject $mailer;
 	private ITagManager&MockObject $tagManager;
+	private TrustedServers&MockObject $trustedServers;
 
 	protected function setUp(): void {
 		$this->shareManager = $this->createMock(IManager::class);
@@ -116,6 +118,7 @@ class ShareAPIControllerTest extends TestCase {
 		$this->factory = $this->createMock(IProviderFactory::class);
 		$this->mailer = $this->createMock(IMailer::class);
 		$this->tagManager = $this->createMock(ITagManager::class);
+		$this->trustedServers = $this->createMock(TrustedServers::class);
 
 		$this->ocs = new ShareAPIController(
 			$this->appName,
@@ -136,8 +139,10 @@ class ShareAPIControllerTest extends TestCase {
 			$this->factory,
 			$this->mailer,
 			$this->tagManager,
-			$this->currentUser,
+			$this->trustedServers,
+			$this->currentUser
 		);
+
 	}
 
 	/**
@@ -164,6 +169,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])->onlyMethods(['formatShare'])
 			->getMock();
@@ -847,6 +853,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])
 			->onlyMethods(['canAccessShare'])
@@ -1478,6 +1485,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])
 			->onlyMethods(['formatShare'])
@@ -1865,6 +1873,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])->onlyMethods(['formatShare'])
 			->getMock();
@@ -1963,6 +1972,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])->onlyMethods(['formatShare'])
 			->getMock();
@@ -2389,6 +2399,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])->onlyMethods(['formatShare'])
 			->getMock();
@@ -2460,6 +2471,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])->onlyMethods(['formatShare'])
 			->getMock();
@@ -2698,6 +2710,7 @@ class ShareAPIControllerTest extends TestCase {
 				$this->factory,
 				$this->mailer,
 				$this->tagManager,
+				$this->trustedServers,
 				$this->currentUser,
 			])->onlyMethods(['formatShare'])
 			->getMock();
@@ -4480,6 +4493,7 @@ class ShareAPIControllerTest extends TestCase {
 				'mount-type' => '',
 				'attributes' => null,
 				'item_permissions' => 1,
+				'is_trusted_server' => false,
 			], $share, [], false
 		];
 
@@ -4533,6 +4547,7 @@ class ShareAPIControllerTest extends TestCase {
 				'mount-type' => '',
 				'attributes' => null,
 				'item_permissions' => 1,
+				'is_trusted_server' => false,
 			], $share, [], false
 		];
 
@@ -5216,4 +5231,138 @@ class ShareAPIControllerTest extends TestCase {
 			['file_source' => 42, 'x' => 'y', 'tags' => ['tag1', 'tag2']],
 		], $result);
 	}
+
+	public function trustedServerProvider(): array {
+		return [
+			'Trusted server' => [true, true],
+			'Untrusted server' => [false, false],
+		];
+	}
+
+	/**
+	 * @dataProvider trustedServerProvider
+	 */
+	public function testFormatShareWithFederatedShare(bool $isKnownServer, bool $isTrusted): void {
+		$nodeId = 12;
+		$nodePath = '/test.txt';
+		$share = $this->createShare(
+			1,
+			IShare::TYPE_REMOTE,
+			'recipient@remoteserver.com', // shared with
+			'sender@testserver.com',      // shared by
+			'shareOwner',                 // share owner
+			$nodePath,                  // path
+			Constants::PERMISSION_READ,
+			time(),
+			null,
+			null,
+			$nodePath,
+			$nodeId
+		);
+
+		$node = $this->createMock(\OCP\Files\File::class);
+		$node->method('getId')->willReturn($nodeId);
+		$node->method('getPath')->willReturn($nodePath);
+		$node->method('getInternalPath')->willReturn(ltrim($nodePath, '/'));
+		$mountPoint = $this->createMock(\OCP\Files\Mount\IMountPoint::class);
+		$mountPoint->method('getMountType')->willReturn('local');
+		$node->method('getMountPoint')->willReturn($mountPoint);
+		$node->method('getMimetype')->willReturn('text/plain');
+		$storage = $this->createMock(\OCP\Files\Storage\IStorage::class);
+		$storageCache = $this->createMock(\OCP\Files\Cache\ICache::class);
+		$storageCache->method('getNumericStorageId')->willReturn(1);
+		$storage->method('getCache')->willReturn($storageCache);
+		$storage->method('getId')->willReturn('home::shareOwner');
+		$node->method('getStorage')->willReturn($storage);
+		$parent = $this->createMock(\OCP\Files\Folder::class);
+		$parent->method('getId')->willReturn(2);
+		$node->method('getParent')->willReturn($parent);
+		$node->method('getSize')->willReturn(1234);
+		$node->method('getMTime')->willReturn(1234567890);
+
+		$this->previewManager->method('isAvailable')->with($node)->willReturn(false);
+
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturnSelf();
+
+		$this->rootFolder->method('getFirstNodeById')
+			->with($share->getNodeId())
+			->willReturn($node);
+
+		$this->rootFolder->method('getRelativePath')
+			->with($node->getPath())
+			->willReturnArgument(0);
+
+		$serverName = 'remoteserver.com';
+		$this->trustedServers->method('isTrustedServer')
+			->with($serverName)
+			->willReturn($isKnownServer);
+
+		$result = $this->invokePrivate($this->ocs, 'formatShare', [$share]);
+
+		$this->assertSame($isTrusted, $result['is_trusted_server']);
+	}
+
+	public function testFormatShareWithFederatedShareWithAtInUsername(): void {
+		$nodeId = 12;
+		$nodePath = '/test.txt';
+		$share = $this->createShare(
+			1,
+			IShare::TYPE_REMOTE,
+			'recipient@domain.com@remoteserver.com',
+			'sender@testserver.com',
+			'shareOwner',
+			$nodePath,
+			Constants::PERMISSION_READ,
+			time(),
+			null,
+			null,
+			$nodePath,
+			$nodeId
+		);
+
+		$node = $this->createMock(\OCP\Files\File::class);
+		$node->method('getId')->willReturn($nodeId);
+		$node->method('getPath')->willReturn($nodePath);
+		$node->method('getInternalPath')->willReturn(ltrim($nodePath, '/'));
+		$mountPoint = $this->createMock(\OCP\Files\Mount\IMountPoint::class);
+		$mountPoint->method('getMountType')->willReturn('local');
+		$node->method('getMountPoint')->willReturn($mountPoint);
+		$node->method('getMimetype')->willReturn('text/plain');
+		$storage = $this->createMock(\OCP\Files\Storage\IStorage::class);
+		$storageCache = $this->createMock(\OCP\Files\Cache\ICache::class);
+		$storageCache->method('getNumericStorageId')->willReturn(1);
+		$storage->method('getCache')->willReturn($storageCache);
+		$storage->method('getId')->willReturn('home::shareOwner');
+		$node->method('getStorage')->willReturn($storage);
+		$parent = $this->createMock(\OCP\Files\Folder::class);
+		$parent->method('getId')->willReturn(2);
+		$node->method('getParent')->willReturn($parent);
+		$node->method('getSize')->willReturn(1234);
+		$node->method('getMTime')->willReturn(1234567890);
+
+		$this->previewManager->method('isAvailable')->with($node)->willReturn(false);
+
+		$this->rootFolder->method('getUserFolder')
+			->with($this->currentUser)
+			->willReturnSelf();
+
+		$this->rootFolder->method('getFirstNodeById')
+			->with($share->getNodeId())
+			->willReturn($node);
+
+		$this->rootFolder->method('getRelativePath')
+			->with($node->getPath())
+			->willReturnArgument(0);
+
+		$serverName = 'remoteserver.com';
+		$this->trustedServers->method('isTrustedServer')
+			->with($serverName)
+			->willReturn(true);
+
+		$result = $this->invokePrivate($this->ocs, 'formatShare', [$share]);
+
+		$this->assertTrue($result['is_trusted_server']);
+	}
 }
diff --git a/openapi.json b/openapi.json
index c888a82bb89..22d7b5b6668 100644
--- a/openapi.json
+++ b/openapi.json
@@ -2562,6 +2562,9 @@
                             1
                         ]
                     },
+                    "is_trusted_server": {
+                        "type": "boolean"
+                    },
                     "is-mount-root": {
                         "type": "boolean"
                     },