PHP Question
Laravel file downloaded from AWS S3 with Filesystem gets corrupted
I am uploading files to Amazon S3 with Laravel filesystem. The upload process works great, however, when I download the files get corrupted. I have manually downloaded the files from the S3 bucket and that way the files don't get corrupted, so I figured that the problem is not the upload.
I am uploading the files like this:
/**
* Upload the file to Amazon S3.
*
* @param UploadedFile $file
* @param $path
* @return $this|bool
*/
protected function upload(UploadedFile $file, $path)
{
$this->filename = $path . '/' . time() . '_' . str_replace(' ', '-', $file->getClientOriginalName());
$disk = Storage::cloud();
if ($disk->put($this->filename, fopen($file, 'r+'))) {
$this->save();
return $this;
}
return false;
}
And to download I have tried this:
/**
* @param Document $document
* @return Response
*/
public function download(Document $document)
{
$file = Storage::cloud()->get($document->path);
$file_info = new finfo(FILEINFO_MIME_TYPE);
return response($file, 200)->withHeaders([
'Content-Type' => $file_info->buffer($file),
'Content-Disposition' => 'inline; filename="' . $document->name . '"'
]);
}
And this:
/**
* @param Document $document
* @return Response
*/
public function download(Document $document)
{
$stream = Storage::cloud()->getDriver()->readStream($document->path);
$file = stream_get_contents($stream);
$file_info = new finfo(FILEINFO_MIME_TYPE);
return response($file, 200)->withHeaders([
'Content-Type' => $file_info->buffer($file),
'Content-Disposition' => 'inline; filename="' . $document->name . '"'
]);
}
With both download functions I get the files, however they become corrupted. Any help is appreciated!
Answer
The problem was that the output buffer contained a whitespace. Using ob_end_clean() before returning the response solved the issue, but upon finding a whitespace on a file before the opening <?php tag, there was no need to use ob_end_clean().
Here is the code without using a presigned url:
/**
* Download document from S3.
*
* @param Document $document
* @return Response
*/
public function download(Document $document)
{
$s3Client = Storage::cloud()->getAdapter()->getClient();
$stream = $s3Client->getObject([
'Bucket' => 'bucket',
'Key' => $document->path
]);
return response($stream['Body'], 200)->withHeaders([
'Content-Type' => $stream['ContentType'],
'Content-Length' => $stream['ContentLength'],
'Content-Disposition' => 'inline; filename="' . $document->name . '"'
]);
}
Source (Stackoverflow)