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@@ -21,7 +21,9 @@ |
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namespace OC\Files\Cache; |
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use OCP\DB\QueryBuilder\IQueryBuilder; |
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use OCP\Files\Cache\IPropagator; |
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use OCP\IDBConnection; |
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/** |
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* Propagate etags and mtimes within the storage |
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@@ -32,11 +34,18 @@ class Propagator implements IPropagator { |
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*/ |
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protected $storage; |
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/** |
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* @var IDBConnection |
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*/ |
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private $connection; |
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/** |
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* @param \OC\Files\Storage\Storage $storage |
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* @param IDBConnection $connection |
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*/ |
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public function __construct(\OC\Files\Storage\Storage $storage) { |
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public function __construct(\OC\Files\Storage\Storage $storage, IDBConnection $connection) { |
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$this->storage = $storage; |
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$this->connection = $connection; |
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} |
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@@ -44,31 +53,49 @@ class Propagator implements IPropagator { |
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* @param string $internalPath |
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* @param int $time |
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* @param int $sizeDifference number of bytes the file has grown |
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* @return array[] all propagated entries |
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*/ |
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public function propagateChange($internalPath, $time, $sizeDifference = 0) { |
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$cache = $this->storage->getCache($internalPath); |
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$storageId = (int)$this->storage->getStorageCache()->getNumericId(); |
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$parents = $this->getParents($internalPath); |
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$parentHashes = array_map('md5', $parents); |
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$etag = uniqid(); // since we give all folders the same etag we don't ask the storage for the etag |
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$parentId = $cache->getParentId($internalPath); |
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$propagatedEntries = []; |
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while ($parentId !== -1) { |
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$entry = $cache->get($parentId); |
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$propagatedEntries[] = $entry; |
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if (!$entry) { |
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return $propagatedEntries; |
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} |
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$mtime = max($time, $entry['mtime']); |
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$builder = $this->connection->getQueryBuilder(); |
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$hashParams = array_map(function ($hash) use ($builder) { |
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return $builder->expr()->literal($hash); |
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}, $parentHashes); |
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if ($entry['size'] === -1) { |
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$newSize = -1; |
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} else { |
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$newSize = $entry['size'] + $sizeDifference; |
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} |
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$cache->update($parentId, ['mtime' => $mtime, 'etag' => $this->storage->getETag($entry['path']), 'size' => $newSize]); |
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$builder->update('filecache') |
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->set('mtime', $builder->createFunction('GREATEST(`mtime`, ' . $builder->createNamedParameter($time) . ')')) |
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->set('etag', $builder->createNamedParameter($etag, IQueryBuilder::PARAM_STR)) |
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->where($builder->expr()->eq('storage', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT))) |
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->andWhere($builder->expr()->in('path_hash', $hashParams)); |
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$parentId = $entry['parent']; |
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$builder->execute(); |
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if ($sizeDifference !== 0) { |
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// we need to do size separably so we can ignore entries with uncalculated size |
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$builder = $this->connection->getQueryBuilder(); |
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$builder->update('filecache') |
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->set('size', $builder->createFunction('`size` + ' . $builder->createNamedParameter($sizeDifference))) |
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->where($builder->expr()->eq('storage', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT))) |
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->andWhere($builder->expr()->in('path_hash', $hashParams)) |
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->andWhere($builder->expr()->gt('size', $builder->expr()->literal(-1, IQueryBuilder::PARAM_INT))); |
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} |
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return $propagatedEntries; |
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$builder->execute(); |
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} |
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protected function getParents($path) { |
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$parts = explode('/', $path); |
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$parent = ''; |
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$parents = []; |
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foreach ($parts as $part) { |
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$parents[] = $parent; |
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$parent = trim($parent . '/' . $part, '/'); |
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} |
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return $parents; |
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} |
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} |