Check if array elements exist before using them

It seems that in some recent upgrade here. Not always the entries we
expect are returned. So we should first check if they exist. As to not
spam the log.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
This commit is contained in:
Roeland Jago Douma 2020-10-23 12:40:12 +02:00 committed by backportbot[bot]
parent b0eec52c85
commit 42d56c9655
1 changed files with 7 additions and 1 deletions

View File

@ -165,7 +165,13 @@ class AmazonS3 extends \OC\Files\Storage\Common {
'MaxKeys' => 1,
'Delimiter' => '/',
]);
$this->directoryCache[$path] = ($result['Contents'][0]['Key'] === rtrim($path, '/') . '/') || $result['CommonPrefixes'];
if ((isset($result['Contents'][0]['Key']) && $result['Contents'][0]['Key'] === rtrim($path, '/') . '/')
|| isset($result['CommonPrefixes'])) {
$this->directoryCache[$path] = true;
} else {
$this->directoryCache[$path] = false;
}
} catch (S3Exception $e) {
if ($e->getStatusCode() === 403) {
$this->directoryCache[$path] = false;