Add config switch

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

apps/federatedfilesharing/lib/FederatedShareProvider.php

 		$result = $this->config->getAppValue('files_sharing', 'incoming_server2server_share_enabled', 'yes');
 		return ($result === 'yes') ? true : false;
 	}
+
+	/**
+	 * Check if querying sharees on the lookup server is enabled
+	 *
+	 * @return bool
+	 */
+	public function isLookupServerQueriesEnabled() {
+		$result = $this->config->getAppValue('files_sharing', 'lookupServerEnabled', 'no');
+		return ($result === 'yes') ? true : false;
+	}
 }

apps/federatedfilesharing/lib/Settings/Admin.php

 		$parameters = [
 			'outgoingServer2serverShareEnabled' => $this->fedShareProvider->isOutgoingServer2serverShareEnabled(),
 			'incomingServer2serverShareEnabled' => $this->fedShareProvider->isIncomingServer2serverShareEnabled(),
+			'lookupServerEnabled' => $this->fedShareProvider->isLookupServerQueriesEnabled(),
 		];
 
 		return new TemplateResponse('federatedfilesharing', 'settings-admin', $parameters, '');

apps/federatedfilesharing/templates/settings-admin.php

 			<?php p($l->t('Allow users on this server to receive shares from other servers'));?>
 		</label><br/>
 	</p>
+	<p>
+		<input type="checkbox" name="lookupServerEnabled" id="lookupServerEnabled" class="checkbox"
+			   value="1" <?php if ($_['lookupServerEnabled']) print_unescaped('checked="checked"'); ?> />
+		<label for="lookupServerEnabled">
+			<?php p($l->t('Enable lookups on lookup server'));?>
+		</label><br/>
+	</p>
 </div>

apps/federatedfilesharing/tests/Settings/AdminTest.php

 			->expects($this->once())
 			->method('isIncomingServer2serverShareEnabled')
 			->willReturn($state);
+		$this->federatedShareProvider
+			->expects($this->once())
+			->method('isLookupServerQueriesEnabled')
+			->willReturn($state);
 
 		$params = [
 			'outgoingServer2serverShareEnabled' => $state,
 			'incomingServer2serverShareEnabled' => $state,
+			'lookupServerEnabled' => $state,
 		];
 		$expected = new TemplateResponse('federatedfilesharing', 'settings-admin', $params, '');
 		$this->assertEquals($expected, $this->admin->getForm());

apps/files_sharing/lib/Controller/ShareesAPIController.php

 	}
 
 	protected function getLookup($search) {
-		$client = $this->clientService->newClient();
-
-		$response = $client->get('https://lookup.nextcloud.com/users?search='.urlencode($search));
-		$body = json_decode($response->getBody(), true);
-
+		$isEnabled = $this->config->getAppValue('files_sharing', 'lookupServerEnabled', 'no');
 		$result = [];
-		foreach ($body as $lookup) {
-			$result[] = [
-				'label' => $lookup['federationId'],
-				'value' => [
-					'shareType' => Share::SHARE_TYPE_REMOTE,
-					'shareWith' => $lookup['federationId'],
-				],
-				'extra' => $lookup,
-			];
+
+		if($isEnabled === 'yes') {
+			try {
+				$client = $this->clientService->newClient();
+				$response = $client->get(
+					'https://lookup.nextcloud.com/users?search=' . urlencode($search),
+					[
+						'timeout' => 10,
+						'connect_timeout' => 3,
+					]
+				);
+
+				$body = json_decode($response->getBody(), true);
+
+				$result = [];
+				foreach ($body as $lookup) {
+					$result[] = [
+						'label' => $lookup['federationId'],
+						'value' => [
+							'shareType' => Share::SHARE_TYPE_REMOTE,
+							'shareWith' => $lookup['federationId'],
+						],
+						'extra' => $lookup,
+					];
+				}
+			} catch (\Exception $e) {}
 		}
+
 		$this->result['lookup'] = $result;
 	}
 

apps/files_sharing/tests/Controller/ShareesAPIControllerTest.php

 use OCA\Files_Sharing\Tests\TestCase;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\OCS\OCSBadRequestException;
+use OCP\Http\Client\IClientService;
 use OCP\Share;
 
 /**
 	/** @var \OCP\Share\IManager|\PHPUnit_Framework_MockObject_MockObject */
 	protected $shareManager;
 
+	/** @var IClientService|\PHPUnit_Framework_MockObject_MockObject */
+	private $clientService;
+
 	protected function setUp() {
 		parent::setUp();
 
 			->disableOriginalConstructor()
 			->getMock();
 
+		$this->clientService = $this->createMock(IClientService::class);
+
 		$this->sharees = new ShareesAPIController(
 			'files_sharing',
 			$this->request,
 			$this->session,
 			$this->getMockBuilder('OCP\IURLGenerator')->disableOriginalConstructor()->getMock(),
 			$this->getMockBuilder('OCP\ILogger')->disableOriginalConstructor()->getMock(),
-			$this->shareManager
+			$this->shareManager,
+			$this->clientService
 		);
 	}
 
 				$this->session,
 				$this->getMockBuilder('OCP\IURLGenerator')->disableOriginalConstructor()->getMock(),
 				$this->getMockBuilder('OCP\ILogger')->disableOriginalConstructor()->getMock(),
-				$this->shareManager
+				$this->shareManager,
+				$this->clientService
 			])
 			->setMethods(array('searchSharees', 'isRemoteSharingAllowed', 'shareProviderExists'))
 			->getMock();
 				$this->session,
 				$this->getMockBuilder('OCP\IURLGenerator')->disableOriginalConstructor()->getMock(),
 				$this->getMockBuilder('OCP\ILogger')->disableOriginalConstructor()->getMock(),
-				$this->shareManager
+				$this->shareManager,
+				$this->clientService
 			])
 			->setMethods(array('searchSharees', 'isRemoteSharingAllowed'))
 			->getMock();
 					'groups' => [],
 					'remotes' => [],
 					'emails' => [],
+					'lookup' => [],
 				], false],
 			['test', 'folder', [Share::SHARE_TYPE_USER, Share::SHARE_TYPE_GROUP, Share::SHARE_TYPE_REMOTE], 1, 2, false, [], [], ['results' => [], 'exact' => [], 'exactIdMatch' => false],
 				[
 					'groups' => [],
 					'remotes' => [],
 					'emails' => [],
+					'lookup' => [],
 				], false],
 			[
 				'test', 'folder', [Share::SHARE_TYPE_USER, Share::SHARE_TYPE_GROUP, Share::SHARE_TYPE_REMOTE], 1, 2, false, [
 						['label' => 'testz@remote', 'value' => ['shareType' => Share::SHARE_TYPE_REMOTE, 'shareWith' => 'testz@remote']],
 					],
 					'emails' => [],
+					'lookup' => [],
 				], true,
 			],
 			// No groups requested
 						['label' => 'testz@remote', 'value' => ['shareType' => Share::SHARE_TYPE_REMOTE, 'shareWith' => 'testz@remote']],
 					],
 					'emails' => [],
+					'lookup' => [],
 				], false,
 			],
 			// Share type restricted to user - Only one user
 					'groups' => [],
 					'remotes' => [],
 					'emails' => [],
+					'lookup' => [],
 				], false,
 			],
 			// Share type restricted to user - Multipage result
 					'groups' => [],
 					'remotes' => [],
 					'emails' => [],
+					'lookup' => [],
 				], true,
 			],
 		];
 				$this->session,
 				$this->getMockBuilder('OCP\IURLGenerator')->disableOriginalConstructor()->getMock(),
 				$this->getMockBuilder('OCP\ILogger')->disableOriginalConstructor()->getMock(),
-				$this->shareManager
+				$this->shareManager,
+				$this->clientService
 			])
 			->setMethods(array('getShareesForShareIds', 'getUsers', 'getGroups', 'getRemote'))
 			->getMock();