fehlerbehandlung

api/api.go

@@ -308,7 +308,6 @@ func DownloadZip(w http.ResponseWriter, r *http.Request) *HTTPError {
 		if err != nil {
 			return &HTTPError{ err, "error opening file", 500}
 		}
-		defer fileToZip.Close()
 
 		info, err := fileToZip.Stat()
 		if err != nil {
@@ -327,7 +326,13 @@ func DownloadZip(w http.ResponseWriter, r *http.Request) *HTTPError {
 		if err != nil {
 			return &HTTPError{ err, "error creating header", 500 }
 		}
-		_, err = io.Copy(writer, fileToZip)
+		if _, err := io.Copy(writer, fileToZip); err != nil{
+			return &HTTPError{ err, "error copying file into zip archive", 500 }
+		}
+		if err := fileToZip.Close(); err != nil {
+			return &HTTPError{ err, "error closing zip archive", 500 }
+		}
+
 	}
 	err = zipWriter.Close()
 	if err != nil {