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[stable16] Better check reshare permissions #16127

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Merged
rullzer merged 4 commits into from
Jun 27, 2019
Merged

[stable16] Better check reshare permissions #16127

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8f97278
Correctly check share permissions when updating a re-sub-share
nickvergessen Jun 21, 2019
9bb690d
Do not create folders with admin user
danxuliu Jun 21, 2019
824c57d
Add integration test for increasing sub reshare permissions
danxuliu Jun 21, 2019
808280b
Fix sharing tests
rullzer Jun 27, 2019
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16 changes: 13 additions & 3 deletions apps/files_sharing/lib/Controller/ShareAPIController.php
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Original file line number Diff line number Diff line change
Expand Up @@ -975,10 +975,20 @@ public function updateShare(
}

if ($permissions !== null && $share->getShareOwner() !== $this->currentUser) {

// Get the root mount point for the user and check the share permissions there
$userFolder = $this->rootFolder->getUserFolder($this->currentUser);
$userNodes = $userFolder->getById($share->getNodeId());
$userNode = array_shift($userNodes);

$userMountPointId = $userNode->getMountPoint()->getStorageRootId();
$userMountPoints = $userFolder->getById($userMountPointId);
$userMountPoint = array_shift($userMountPoints);

/* Check if this is an incoming share */
$incomingShares = $this->shareManager->getSharedWith($this->currentUser, Share::SHARE_TYPE_USER, $share->getNode(), -1, 0);
$incomingShares = array_merge($incomingShares, $this->shareManager->getSharedWith($this->currentUser, Share::SHARE_TYPE_GROUP, $share->getNode(), -1, 0));
$incomingShares = array_merge($incomingShares, $this->shareManager->getSharedWith($this->currentUser, Share::SHARE_TYPE_ROOM, $share->getNode(), -1, 0));
$incomingShares = $this->shareManager->getSharedWith($this->currentUser, Share::SHARE_TYPE_USER, $userMountPoint, -1, 0);
$incomingShares = array_merge($incomingShares, $this->shareManager->getSharedWith($this->currentUser, Share::SHARE_TYPE_GROUP, $userMountPoint, -1, 0));
$incomingShares = array_merge($incomingShares, $this->shareManager->getSharedWith($this->currentUser, Share::SHARE_TYPE_ROOM, $userMountPoint, -1, 0));

/** @var \OCP\Share\IShare[] $incomingShares */
if (!empty($incomingShares)) {
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