implement decline share

Signed-off-by: Bjoern Schiessle <bjoern@schiessle.org>

4 files changed, 115 insertions, 46 deletions

diff --git a/apps/federatedfilesharing/lib/AppInfo/Application.php b/apps/federatedfilesharing/lib/AppInfo/Application.php
index 0b61e0a0b0d..093e1e44f94 100644
--- a/apps/federatedfilesharing/lib/AppInfo/Application.php
+++ b/apps/federatedfilesharing/lib/AppInfo/Application.php
@@ -62,7 +62,9 @@ class Application extends App {
 					$server->getCloudIdManager(),
 					$server->getActivityManager(),
 					$server->getNotificationManager(),
-					$server->getURLGenerator()
+					$server->getURLGenerator(),
+					$server->getCloudFederationFactory(),
+					$server->getCloudFederationProviderManager()
 				);
 			});
 
diff --git a/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php b/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
index 628e306e994..8514adb5e89 100644
--- a/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
+++ b/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
@@ -304,52 +304,28 @@ class RequestHandlerController extends OCSController {
 	 */
 	public function declineShare($id) {
 
-		if (!$this->isS2SEnabled()) {
-			throw new OCSException('Server does not support federated cloud sharing', 503);
-		}
-
 		$token = isset($_POST['token']) ? $_POST['token'] : null;
 
-		try {
-			$share = $this->federatedShareProvider->getShareById($id);
-		} catch (Share\Exceptions\ShareNotFound $e) {
-			return new Http\DataResponse();
-		}
+		$notification = [
+			'sharedSecret' => $token,
+			'message' => 'Recipient declined the share'
+		];
 
-		if ($this->verifyShare($share, $token)) {
-			if ($share->getShareOwner() !== $share->getSharedBy()) {
-				list(, $remote) = $this->addressHandler->splitUserRemote($share->getSharedBy());
-				$remoteId = $this->federatedShareProvider->getRemoteId($share);
-				$this->notifications->sendDeclineShare($remote, $remoteId, $share->getToken());
-			}
-			$this->executeDeclineShare($share);
+		try {
+			$provider = $this->cloudFederationProviderManager->getCloudFederationProvider('file');
+			$provider->notificationReceived('SHARE_DECLINED', $id, $notification);
+		} catch (ProviderDoesNotExistsException $e) {
+			throw new OCSException('Server does not support federated cloud sharing', 503);
+		} catch (ShareNotFoundException $e) {
+			$this->logger->debug('Share not found: ' . $e->getMessage());
+		} catch (\Exception $e) {
+			$this->logger->debug('internal server error, can not process notification: ' . $e->getMessage());
 		}
 
 		return new Http\DataResponse();
 	}
 
 	/**
-	 * delete declined share and create a activity
-	 *
-	 * @param Share\IShare $share
-	 */
-	protected function executeDeclineShare(Share\IShare $share) {
-		$this->federatedShareProvider->removeShareFromTable($share);
-		$fileId = (int) $share->getNode()->getId();
-		list($file, $link) = $this->getFile($this->getCorrectUid($share), $fileId);
-
-		$event = \OC::$server->getActivityManager()->generateEvent();
-		$event->setApp('files_sharing')
-			->setType('remote_share')
-			->setAffectedUser($this->getCorrectUid($share))
-			->setSubject(RemoteShares::SUBJECT_REMOTE_SHARE_DECLINED, [$share->getSharedWith(), [$fileId => $file]])
-			->setObject('files', $fileId, $file)
-			->setLink($link);
-		\OC::$server->getActivityManager()->publish($event);
-
-	}
-
-	/**
 	 * @NoCSRFRequired
 	 * @PublicPage
 	 *
diff --git a/apps/federatedfilesharing/lib/FederatedShareProvider.php b/apps/federatedfilesharing/lib/FederatedShareProvider.php
index 07597cae8e5..84aeb8b78cb 100644
--- a/apps/federatedfilesharing/lib/FederatedShareProvider.php
+++ b/apps/federatedfilesharing/lib/FederatedShareProvider.php
@@ -709,7 +709,7 @@ class FederatedShareProvider implements IShareProvider {
 		$cursor->closeCursor();
 
 		if ($data === false) {
-			throw new ShareNotFoundException();
+			throw new ShareNotFoundException('Can not find share with ID: ' . $id);
 		}
 
 		try {
diff --git a/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php b/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
index 798b0bef3f4..a271fd454b2 100644
--- a/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
+++ b/apps/federatedfilesharing/lib/ocm/CloudFederationProviderFiles.php
@@ -34,7 +34,9 @@ use OCP\Federation\Exceptions\AuthenticationFailedException;
 use OCP\Federation\Exceptions\BadRequestException;
 use OCP\Federation\Exceptions\ProviderCouldNotAddShareException;
 use OCP\Federation\Exceptions\ShareNotFoundException;
+use OCP\Federation\ICloudFederationFactory;
 use OCP\Federation\ICloudFederationProvider;
+use OCP\Federation\ICloudFederationProviderManager;
 use OCP\Federation\ICloudFederationShare;
 use OCP\Federation\ICloudIdManager;
 use OCP\Files\NotFoundException;
@@ -75,6 +77,12 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 	/** @var IURLGenerator */
 	private $urlGenerator;
 
+	/** @var ICloudFederationFactory */
+	private $cloudFederationFactory;
+
+	/** @var ICloudFederationProviderManager */
+	private $cloudFederationProviderManager;
+
 	/**
 	 * CloudFederationProvider constructor.
 	 *
@@ -87,6 +95,8 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 	 * @param IActivityManager $activityManager
 	 * @param INotificationManager $notificationManager
 	 * @param IURLGenerator $urlGenerator
+	 * @param ICloudFederationFactory $cloudFederationFactory
+	 * @param ICloudFederationProviderManager $cloudFederationProviderManager
 	 */
 	public function __construct(IAppManager $appManager,
 								FederatedShareProvider $federatedShareProvider,
@@ -96,7 +106,9 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 								ICloudIdManager $cloudIdManager,
 								IActivityManager $activityManager,
 								INotificationManager $notificationManager,
-								IURLGenerator $urlGenerator
+								IURLGenerator $urlGenerator,
+								ICloudFederationFactory $cloudFederationFactory,
+								ICloudFederationProviderManager $cloudFederationProviderManager
 	) {
 		$this->appManager = $appManager;
 		$this->federatedShareProvider = $federatedShareProvider;
@@ -107,6 +119,8 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 		$this->activityManager = $activityManager;
 		$this->notificationManager = $notificationManager;
 		$this->urlGenerator = $urlGenerator;
+		$this->cloudFederationFactory = $cloudFederationFactory;
+		$this->cloudFederationProviderManager = $cloudFederationProviderManager;
 	}
 
 
@@ -258,15 +272,18 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 			case 'SHARE_ACCEPTED':
 				$this->shareAccepted($providerId, $notification);
 				return;
+			case 'SHARE_DECLINED':
+				$this->shareDeclined($providerId, $notification);
+				return;
 		}
 
 
-		throw new ActionNotSupportedException($notification);
+		throw new BadRequestException([$notificationType]);
 	}
 
 	/**
-	 * @param $id
-	 * @param $notification
+	 * @param string $id
+	 * @param array $notification
 	 * @return bool
 	 * @throws ActionNotSupportedException
 	 * @throws AuthenticationFailedException
@@ -276,8 +293,8 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 	 */
 	private function shareAccepted($id, $notification) {
 
-		if (!$this->isS2SEnabled(true)) {
-			throw new ActionNotSupportedException('Server does not support federated cloud sharing', '', Http::STATUS_SERVICE_UNAVAILABLE);
+		if (!$this->isS2SEnabled()) {
+			throw new ActionNotSupportedException('Server does not support federated cloud sharing');
 		}
 
 		if (!isset($notification['sharedSecret'])) {
@@ -311,7 +328,6 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 		return true;
 	}
 
-
 	/**
 	 * @param IShare $share
 	 * @throws ShareNotFoundException
@@ -335,6 +351,81 @@ class CloudFederationProviderFiles implements ICloudFederationProvider {
 	}
 
 	/**
+	 * @param string $id
+	 * @param array $notification
+	 * @throws ActionNotSupportedException
+	 * @throws AuthenticationFailedException
+	 * @throws BadRequestException
+	 * @throws ShareNotFound
+	 * @throws ShareNotFoundException
+	 * @throws \OC\HintException
+	 */
+	protected function shareDeclined($id, $notification) {
+
+		if (!$this->isS2SEnabled()) {
+			throw new ActionNotSupportedException('Server does not support federated cloud sharing');
+		}
+
+		if (!isset($notification['sharedSecret'])) {
+			throw new BadRequestException(['sharedSecret']);
+		}
+
+		$token = $notification['sharedSecret'];
+
+		$share = $this->federatedShareProvider->getShareById($id);
+
+		$this->verifyShare($share, $token);
+
+		if ($share->getShareOwner() !== $share->getSharedBy()) {
+			list(, $remote) = $this->addressHandler->splitUserRemote($share->getSharedBy());
+			$remoteId = $this->federatedShareProvider->getRemoteId($share);
+			$notification = $this->cloudFederationFactory->getCloudFederationNotification();
+			$notification->setMessage(
+				'SHARE_DECLINED',
+				'file',
+				$remoteId,
+				[
+					'sharedSecret' => $token,
+					'message' => 'Recipient declined the re-share'
+				]
+
+			);
+			$this->cloudFederationProviderManager->sendNotification($remote, $notification);
+		}
+
+		$this->executeDeclineShare($share);
+
+	}
+
+	/**
+	 * delete declined share and create a activity
+	 *
+	 * @param IShare $share
+	 * @throws ShareNotFoundException
+	 */
+	protected function executeDeclineShare(IShare $share) {
+		$this->federatedShareProvider->removeShareFromTable($share);
+
+		try {
+			$fileId = (int)$share->getNode()->getId();
+			list($file, $link) = $this->getFile($this->getCorrectUid($share), $fileId);
+		} catch (\Exception $e) {
+			throw new ShareNotFoundException();
+		}
+
+		$event = $this->activityManager->generateEvent();
+		$event->setApp('files_sharing')
+			->setType('remote_share')
+			->setAffectedUser($this->getCorrectUid($share))
+			->setSubject(RemoteShares::SUBJECT_REMOTE_SHARE_DECLINED, [$share->getSharedWith(), [$fileId => $file]])
+			->setObject('files', $fileId, $file)
+			->setLink($link);
+		$this->activityManager->publish($event);
+
+	}
+
+
+	/**
 	 * get file
 	 *
 	 * @param string $user