fix(files): Do not array access null valuefix/encoding-wrapper-scanner-stable30

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

2 files changed, 11 insertions, 1 deletions

diff --git a/lib/private/Files/Storage/Wrapper/Encoding.php b/lib/private/Files/Storage/Wrapper/Encoding.php
index 11f21eb828e..caaba22b05f 100644
--- a/lib/private/Files/Storage/Wrapper/Encoding.php
+++ b/lib/private/Files/Storage/Wrapper/Encoding.php
@@ -510,7 +510,9 @@ class Encoding extends Wrapper {
 
 	public function getMetaData($path) {
 		$entry = $this->storage->getMetaData($this->findPathToUse($path));
-		$entry['name'] = trim(Filesystem::normalizePath($entry['name']), '/');
+		if ($entry !== null) {
+			$entry['name'] = trim(Filesystem::normalizePath($entry['name']), '/');
+		}
 		return $entry;
 	}
 
diff --git a/tests/lib/Files/Storage/Wrapper/EncodingTest.php b/tests/lib/Files/Storage/Wrapper/EncodingTest.php
index ae6a6ece742..b50d6f985f1 100644
--- a/tests/lib/Files/Storage/Wrapper/EncodingTest.php
+++ b/tests/lib/Files/Storage/Wrapper/EncodingTest.php
@@ -240,4 +240,12 @@ class EncodingTest extends \Test\Files\Storage\Storage {
 		$entry = $this->instance->getMetaData('/test/' . self::NFD_NAME);
 		$this->assertEquals(self::NFC_NAME, $entry['name']);
 	}
+
+	/**
+	 * Regression test of https://github.com/nextcloud/server/issues/50431
+	 */
+	public function testNoMetadata() {
+		$this->assertNull($this->instance->getMetaData('/test/null'));
+	}
+
 }