Don't try to encrypt a file when the temp file isn't created

apps/files_encryption/lib/util.php

@@ -840,6 +840,7 @@ class Util {
 				// Open enc file handle for binary writing, with same filename as original plain file
 				$encHandle = fopen('crypt://' . $rawPath . '.part', 'wb');
 
+				if (is_resource($encHandle)) {
 					// Move plain file to a temporary location
 					$size = stream_copy_to_stream($plainHandle, $encHandle);
 
@@ -854,18 +855,20 @@ class Util {
 					// set timestamp
 					$this->view->touch($relPath, $timestamp);
 
+					$encSize = $this->view->filesize($relPath);
+
 					$this->view->chroot($fakeRoot);
 
 					// Add the file to the cache
 					\OC\Files\Filesystem::putFileInfo($relPath, array(
 						'encrypted' => true,
-					'size' => $size,
+						'size' => $encSize,
 						'unencrypted_size' => $size,
 						'etag' => $fileInfo['etag']
 					));
 
 					$encryptedFiles[] = $relPath;
-
+				}
 			}
 
 			// Encrypt legacy encrypted files