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[stable18] Fix S3 error handling #22522

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merged 2 commits into from
Aug 31, 2020
Merged

[stable18] Fix S3 error handling #22522

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f909d2a
Don't lose filecache entry on s3 overwrite error
rullzer Aug 31, 2020
55ce30a
Only update the filecache entry once the file has been written to S3
rullzer Aug 31, 2020
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34 changes: 27 additions & 7 deletions lib/private/Files/ObjectStore/ObjectStoreStorage.php
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Original file line number Diff line number Diff line change
Expand Up @@ -444,7 +444,13 @@ public function writeStream(string $path, $stream, int $size = null): int {

$exists = $this->getCache()->inCache($path);
$uploadPath = $exists ? $path : $path . '.part';
$fileId = $this->getCache()->put($uploadPath, $stat);

if ($exists) {
$fileId = $stat['fileid'];
} else {
$fileId = $this->getCache()->put($uploadPath, $stat);
}

$urn = $this->getURN($fileId);
try {
//upload to object storage
Expand All @@ -459,19 +465,33 @@ public function writeStream(string $path, $stream, int $size = null): int {
if (is_resource($countStream)) {
fclose($countStream);
}
$stat['size'] = $size;
} else {
$this->objectStore->writeObject($urn, $stream);
}
} catch (\Exception $ex) {
$this->getCache()->remove($uploadPath);
$this->logger->logException($ex, [
'app' => 'objectstore',
'message' => 'Could not create object ' . $urn . ' for ' . $path,
]);
if (!$exists) {
/*
* Only remove the entry if we are dealing with a new file.
* Else people lose access to existing files
*/
$this->getCache()->remove($uploadPath);
$this->logger->logException($ex, [
'app' => 'objectstore',
'message' => 'Could not create object ' . $urn . ' for ' . $path,
]);
} else {
$this->logger->logException($ex, [
'app' => 'objectstore',
'message' => 'Could not update object ' . $urn . ' for ' . $path,
]);
}
throw $ex; // make this bubble up
}

if (!$exists) {
if ($exists) {
$this->getCache()->update($fileId, $stat);
} else {
if ($this->objectStore->objectExists($urn)) {
$this->getCache()->move($uploadPath, $path);
} else {
Expand Down