Active share validation/authoritative mount improvements #57760
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| <?php | ||
|
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| declare(strict_types=1); | ||
| /** | ||
| * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors | ||
| * SPDX-License-Identifier: AGPL-3.0-or-later | ||
| */ | ||
|
|
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| namespace OCA\Files_Sharing\Listener; | ||
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| use OCA\Files_Sharing\AppInfo\Application; | ||
| use OCA\Files_Sharing\Config\ConfigLexicon; | ||
| use OCA\Files_Sharing\ShareRecipientUpdater; | ||
| use OCP\Config\IUserConfig; | ||
| use OCP\EventDispatcher\Event; | ||
| use OCP\EventDispatcher\IEventListener; | ||
| use OCP\Files\Events\UserHomeSetupEvent; | ||
|
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| /** | ||
| * Listen to the users filesystem setup being started, to perform any receiving share | ||
| * work that was postponed. | ||
| * | ||
| * @template-implements IEventListener<UserHomeSetupEvent> | ||
| */ | ||
| class UserHomeSetupListener implements IEventListener { | ||
| public function __construct( | ||
| private readonly ShareRecipientUpdater $updater, | ||
| private readonly IUserConfig $userConfig, | ||
| ) { | ||
| } | ||
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| public function handle(Event $event): void { | ||
| if (!$event instanceof UserHomeSetupEvent) { | ||
| return; | ||
| } | ||
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| $user = $event->getUser(); | ||
| if ($this->userConfig->getValueBool($user->getUID(), Application::APP_ID, ConfigLexicon::USER_NEEDS_SHARE_REFRESH)) { | ||
| $this->updater->updateForUser($user); | ||
| $this->userConfig->setValueBool($user->getUID(), Application::APP_ID, ConfigLexicon::USER_NEEDS_SHARE_REFRESH, false); | ||
| } | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| <?php | ||
|
|
||
| declare(strict_types=1); | ||
| /** | ||
| * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors | ||
| * SPDX-License-Identifier: AGPL-3.0-or-later | ||
| */ | ||
|
|
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| namespace OCA\Files_Sharing; | ||
|
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| use OCP\Files\Config\ICachedMountInfo; | ||
| use OCP\Files\Config\IUserMountCache; | ||
| use OCP\Files\Storage\IStorageFactory; | ||
| use OCP\IUser; | ||
| use OCP\Share\IShare; | ||
|
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| class ShareRecipientUpdater { | ||
| private array $inUpdate = []; | ||
|
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| public function __construct( | ||
| private readonly IUserMountCache $userMountCache, | ||
| private readonly MountProvider $shareMountProvider, | ||
| private readonly ShareTargetValidator $shareTargetValidator, | ||
| private readonly IStorageFactory $storageFactory, | ||
| ) { | ||
| } | ||
|
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| /** | ||
| * Validate all received shares for a user | ||
| */ | ||
| public function updateForUser(IUser $user, bool $verifyMountPoints = true, array $ignoreShares = []): void { | ||
| // prevent recursion | ||
| if (isset($this->inUpdate[$user->getUID()])) { | ||
| return; | ||
| } | ||
| $this->inUpdate[$user->getUID()] = true; | ||
|
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| $cachedMounts = $this->userMountCache->getMountsForUser($user); | ||
| $shareMounts = array_filter($cachedMounts, fn (ICachedMountInfo $mount) => $mount->getMountProvider() === MountProvider::class); | ||
| $mountPoints = array_map(fn (ICachedMountInfo $mount) => $mount->getMountPoint(), $cachedMounts); | ||
| $mountsByPath = array_combine($mountPoints, $cachedMounts); | ||
|
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| $shares = $this->shareMountProvider->getSuperSharesForUser($user, $ignoreShares); | ||
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| $mountsChanged = count($shares) !== count($shareMounts); | ||
| foreach ($shares as &$share) { | ||
| [$parentShare, $groupedShares] = $share; | ||
| $mountPoint = '/' . $user->getUID() . '/files/' . trim($parentShare->getTarget(), '/') . '/'; | ||
| $mountKey = $parentShare->getNodeId() . '::' . $mountPoint; | ||
| if (!isset($cachedMounts[$mountKey])) { | ||
| $mountsChanged = true; | ||
| if ($verifyMountPoints) { | ||
| $this->shareTargetValidator->verifyMountPoint($user, $parentShare, $mountsByPath, $groupedShares); | ||
| } | ||
| } | ||
| } | ||
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| if ($mountsChanged) { | ||
| $newMounts = $this->shareMountProvider->getMountsFromSuperShares($user, $shares, $this->storageFactory); | ||
| $this->userMountCache->registerMounts($user, $newMounts, [MountProvider::class]); | ||
| } | ||
|
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| unset($this->inUpdate[$user->getUID()]); | ||
| } | ||
|
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| /** | ||
| * Validate a single received share for a user | ||
| */ | ||
| public function updateForShare(IUser $user, IShare $share): void { | ||
| $cachedMounts = $this->userMountCache->getMountsForUser($user); | ||
| $mountPoints = array_map(fn (ICachedMountInfo $mount) => $mount->getMountPoint(), $cachedMounts); | ||
| $mountsByPath = array_combine($mountPoints, $cachedMounts); | ||
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| $target = $this->shareTargetValidator->verifyMountPoint($user, $share, $mountsByPath, [$share]); | ||
| $mountPoint = '/' . $user->getUID() . '/files/' . trim($target, '/') . '/'; | ||
|
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| $this->userMountCache->addMount($user, $mountPoint, $share->getNode()->getData(), MountProvider::class); | ||
| } | ||
| } |
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