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Fix empty file uploads to S3 (and other streaming storages) #14210

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Merged
rullzer merged 4 commits into from
Feb 18, 2019
Merged

Fix empty file uploads to S3 (and other streaming storages) #14210

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61d66d7
Fix empty file uploads to S3
rullzer Feb 14, 2019
3720add
Add a wrapper to determine if a file is EOF
rullzer Feb 14, 2019
3edffdd
Bump icewind/streams for supported streams
rullzer Feb 15, 2019
fc967a5
Make sure that we have a stream
rullzer Feb 18, 2019
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Fix empty file uploads to S3 
Signed-off-by: Roeland Jago Douma <[email protected]>
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@rullzer
rullzer committed Feb 15, 2019
commit 61d66d79544e3bd17a4f96a569fc24596ec414db
25 changes: 23 additions & 2 deletions lib/private/Files/ObjectStore/S3ObjectTrait.php
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Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,11 @@

namespace OC\Files\ObjectStore;

use Aws\S3\Exception\S3MultipartUploadException;
use Aws\S3\MultipartUploader;
use Aws\S3\ObjectUploader;
use Aws\S3\S3Client;
use Icewind\Streams\CallbackWrapper;

const S3_UPLOAD_PART_SIZE = 524288000; // 500MB

Expand Down Expand Up @@ -73,12 +76,30 @@ function readObject($urn) {
* @since 7.0.0
*/
function writeObject($urn, $stream) {
$uploader = new MultipartUploader($this->getConnection(), $stream, [
$count = 0;
$countStream = CallbackWrapper::wrap($stream, function ($read) use (&$count) {
$count += $read;
});

$uploader = new MultipartUploader($this->getConnection(), $countStream, [
'bucket' => $this->bucket,
'key' => $urn,
'part_size' => S3_UPLOAD_PART_SIZE
]);
$uploader->upload();

try {
$uploader->upload();
} catch (S3MultipartUploadException $e) {
// This is an emty file so just touch it then
if ($count === 0 && feof($countStream)) {
$uploader = new ObjectUploader($this->getConnection(), $this->bucket, $urn, '');
$uploader->upload();
} else {
throw $e;
}
}

fclose($countStream);
}

/**
Expand Down