From 74c6beb603f18d51d92730bb631bfe77d8feb400 Mon Sep 17 00:00:00 2001 From: Robin Appelman Date: Wed, 6 Nov 2019 12:05:46 +0100 Subject: [PATCH] dont set folder size to negative values during propagation normally this shouldn't be a problem, but cache/storage desync might cause this so this adds some failsafe to ensure we dont corrupt the cache further the minimum value is set to -1 instead of 0 in order to triger a background scan on the folder and figure out the size properly Signed-off-by: Robin Appelman --- lib/private/Files/Cache/Propagator.php | 7 +++++-- tests/lib/Files/Cache/PropagatorTest.php | 11 +++++++++++ 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/lib/private/Files/Cache/Propagator.php b/lib/private/Files/Cache/Propagator.php index 989a4d0c7d..41b4c2bb07 100644 --- a/lib/private/Files/Cache/Propagator.php +++ b/lib/private/Files/Cache/Propagator.php @@ -91,7 +91,7 @@ class Propagator implements IPropagator { }, $parentHashes); $builder->update('filecache') - ->set('mtime', $builder->createFunction('GREATEST(' . $builder->getColumnName('mtime') . ', ' . $builder->createNamedParameter((int)$time, IQueryBuilder::PARAM_INT) . ')')) + ->set('mtime', $builder->func()->greatest('mtime', $builder->createNamedParameter((int)$time, IQueryBuilder::PARAM_INT))) ->set('etag', $builder->createNamedParameter($etag, IQueryBuilder::PARAM_STR)) ->where($builder->expr()->eq('storage', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT))) ->andWhere($builder->expr()->in('path_hash', $hashParams)); @@ -102,7 +102,10 @@ class Propagator implements IPropagator { // we need to do size separably so we can ignore entries with uncalculated size $builder = $this->connection->getQueryBuilder(); $builder->update('filecache') - ->set('size', $builder->func()->add('size', $builder->createNamedParameter($sizeDifference))) + ->set('size', $builder->func()->greatest( + $builder->createNamedParameter(-1, IQueryBuilder::PARAM_INT), + $builder->func()->add('size', $builder->createNamedParameter($sizeDifference))) + ) ->where($builder->expr()->eq('storage', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT))) ->andWhere($builder->expr()->in('path_hash', $hashParams)) ->andWhere($builder->expr()->gt('size', $builder->expr()->literal(-1, IQueryBuilder::PARAM_INT))); diff --git a/tests/lib/Files/Cache/PropagatorTest.php b/tests/lib/Files/Cache/PropagatorTest.php index 402b29c8c3..bcd808a840 100644 --- a/tests/lib/Files/Cache/PropagatorTest.php +++ b/tests/lib/Files/Cache/PropagatorTest.php @@ -81,6 +81,17 @@ class PropagatorTest extends TestCase { } } + public function testSizePropagationNoNegative() { + $paths = ['', 'foo', 'foo/bar']; + $oldInfos = $this->getFileInfos($paths); + $this->storage->getPropagator()->propagateChange('foo/bar/file.txt', time(), -100); + $newInfos = $this->getFileInfos($paths); + + foreach ($oldInfos as $i => $oldInfo) { + $this->assertEquals(-1, $newInfos[$i]->getSize()); + } + } + public function testBatchedPropagation() { $this->storage->mkdir('foo/baz'); $this->storage->mkdir('asd');