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fall back to old re-sharing behaviour in case the remote server doesn't support flat-reshares

This commit is contained in:
Björn Schießle 2016-05-17 15:03:37 +02:00
parent 2dc26aada7
commit 92fa0c7dfd
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2 changed files with 70 additions and 35 deletions
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98
apps/federatedfilesharing/lib/FederatedShareProvider.php
View File

@ -133,7 +133,6 @@ class FederatedShareProvider implements IShareProvider {
$shareWith = $share->getSharedWith();
$itemSource = $share->getNodeId();
$itemType = $share->getNodeType();
$uidOwner = $share->getShareOwner();
$permissions = $share->getPermissions();
$sharedBy = $share->getSharedBy();
@ -160,7 +159,7 @@ class FederatedShareProvider implements IShareProvider {
throw new \Exception($message_t);
}
$shareWith = $user . '@' . $remote;
$share->setSharedWith($user . '@' . $remote);
try {
$remoteShare = $this->getShareFromExternalShareTable($share);
@ -169,39 +168,33 @@ class FederatedShareProvider implements IShareProvider {
}
if ($remoteShare) {
$uidOwner = $remoteShare['owner'] . '@' . $remoteShare['remote'];
$shareId = $this->addShareToDB($itemSource, $itemType, $shareWith, $sharedBy, $uidOwner, $permissions, 'tmp_token_' . time());
list($token, $remoteId) = $this->askOwnerToReShare($shareWith, $share, $shareId);
// remote share was create successfully if we get a valid token as return
$send = is_string($token) && $token !== '';
if ($send) {
$this->updateSuccessfulReshare($shareId, $token);
$this->storeRemoteId($shareId, $remoteId);
try {
$uidOwner = $remoteShare['owner'] . '@' . $remoteShare['remote'];
$shareId = $this->addShareToDB($itemSource, $itemType, $shareWith, $sharedBy, $uidOwner, $permissions, 'tmp_token_' . time());
list($token, $remoteId) = $this->askOwnerToReShare($shareWith, $share, $shareId);
// remote share was create successfully if we get a valid token as return
$send = is_string($token) && $token !== '';
if ($send) {
$this->updateSuccessfulReshare($shareId, $token);
$this->storeRemoteId($shareId, $remoteId);
}
} catch (\Exception $e) {
// fall back to old re-share behavior if the remote server
// doesn't support flat re-shares (was introduced with ownCloud 9.1)
$data = $this->getRawShare($shareId);
$brokenShare = $this->createShareObject($data);
$this->removeShareFromTable($brokenShare);
list($shareId, $send) = $this->createFederatedShare($share);
}
} else {
$token = $this->tokenHandler->generateToken();
$shareId = $this->addShareToDB($itemSource, $itemType, $shareWith, $sharedBy, $uidOwner, $permissions, $token);
$sharedByFederatedId = $share->getSharedBy();
if ($this->userManager->userExists($sharedByFederatedId)) {
$sharedByFederatedId = $sharedByFederatedId . '@' . $this->addressHandler->generateRemoteURL();
}
$send = $this->notifications->sendRemoteShare(
$token,
$shareWith,
$share->getNode()->getName(),
$shareId,
$share->getShareOwner(),
$share->getShareOwner() . '@' . $this->addressHandler->generateRemoteURL(),
$share->getSharedBy(),
$sharedByFederatedId
);
list($shareId, $send) = $this->createFederatedShare($share);
}
$data = $this->getRawShare($shareId);
$share = $this->createShare($data);
$share = $this->createShareObject($data);
if ($send === false) {
$this->delete($share);
$this->removeShareFromTable($share);
$message_t = $this->l->t('Sharing %s failed, could not find %s, maybe the server is currently unreachable.',
[$share->getNode()->getName(), $shareWith]);
throw new \Exception($message_t);
@ -210,6 +203,41 @@ class FederatedShareProvider implements IShareProvider {
return $share;
}
/**
* create federated share and inform the recipient
*
* @param IShare $share
* @return array
*/
protected function createFederatedShare(IShare $share) {
$token = $this->tokenHandler->generateToken();
$shareId = $this->addShareToDB(
$share->getNodeId(),
$share->getNodeType(),
$share->getSharedWith(),
$share->getSharedBy(),
$share->getShareOwner(),
$share->getPermissions(),
$token
);
$sharedByFederatedId = $share->getSharedBy();
if ($this->userManager->userExists($sharedByFederatedId)) {
$sharedByFederatedId = $sharedByFederatedId . '@' . $this->addressHandler->generateRemoteURL();
}
$send = $this->notifications->sendRemoteShare(
$token,
$share->getSharedWith(),
$share->getNode()->getName(),
$shareId,
$share->getShareOwner(),
$share->getShareOwner() . '@' . $this->addressHandler->generateRemoteURL(),
$share->getSharedBy(),
$sharedByFederatedId
);
return [$shareId, $send];
}
/**
* @param string $shareWith
* @param IShare $share
@ -421,7 +449,7 @@ class FederatedShareProvider implements IShareProvider {
$cursor = $qb->execute();
while($data = $cursor->fetch()) {
$children[] = $this->createShare($data);
$children[] = $this->createShareObject($data);
}
$cursor->closeCursor();
@ -562,7 +590,7 @@ class FederatedShareProvider implements IShareProvider {
$cursor = $qb->execute();
$shares = [];
while($data = $cursor->fetch()) {
$shares[] = $this->createShare($data);
$shares[] = $this->createShareObject($data);
}
$cursor->closeCursor();
@ -589,7 +617,7 @@ class FederatedShareProvider implements IShareProvider {
}
try {
$share = $this->createShare($data);
$share = $this->createShareObject($data);
} catch (InvalidShare $e) {
throw new ShareNotFound();
}
@ -614,7 +642,7 @@ class FederatedShareProvider implements IShareProvider {
$shares = [];
while($data = $cursor->fetch()) {
$shares[] = $this->createShare($data);
$shares[] = $this->createShareObject($data);
}
$cursor->closeCursor();
@ -653,7 +681,7 @@ class FederatedShareProvider implements IShareProvider {
$cursor = $qb->execute();
while($data = $cursor->fetch()) {
$shares[] = $this->createShare($data);
$shares[] = $this->createShareObject($data);
}
$cursor->closeCursor();
@ -684,7 +712,7 @@ class FederatedShareProvider implements IShareProvider {
}
try {
$share = $this->createShare($data);
$share = $this->createShareObject($data);
} catch (InvalidShare $e) {
throw new ShareNotFound();
}
@ -726,7 +754,7 @@ class FederatedShareProvider implements IShareProvider {
* @throws InvalidShare
* @throws ShareNotFound
*/
private function createShare($data) {
private function createShareObject($data) {
$share = new Share($this->rootFolder, $this->userManager);
$share->setId((int)$data['id'])

7
apps/federatedfilesharing/lib/Notifications.php
View File

@ -23,6 +23,7 @@
namespace OCA\FederatedFileSharing;
use OCP\AppFramework\Http;
use OCP\BackgroundJob\IJobList;
use OCP\Http\Client\IClientService;
@ -291,6 +292,12 @@ class Notifications {
$result['success'] = true;
break;
} catch (\Exception $e) {
// if flat re-sharing is not supported by the remote server
// we re-throw the exception and fall back to the old behaviour.
// (flat re-shares has been introduced in ownCloud 9.1)
if ($e->getCode() === Http::STATUS_INTERNAL_SERVER_ERROR) {
throw $e;
}
$try++;
$protocol = 'http://';
}