cmd/syncthing, gui: Implement download of "support bundle" (fixes #5142) (#5145)

cmd/syncthing/support_bundle.go

@@ -0,0 +1,47 @@
+// Copyright (C) 2018 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
+package main
+
+import (
+	"archive/zip"
+	"io"
+
+	"github.com/syncthing/syncthing/lib/config"
+)
+
+// getRedactedConfig redacting some parts of config
+func getRedactedConfig(s *apiService) config.Configuration {
+	rawConf := s.cfg.RawCopy()
+	rawConf.GUI.APIKey = "REDACTED"
+	if rawConf.GUI.Password != "" {
+		rawConf.GUI.Password = "REDACTED"
+	}
+	if rawConf.GUI.User != "" {
+		rawConf.GUI.User = "REDACTED"
+	}
+	return rawConf
+}
+
+// writeZip writes a zip file containing the given entries
+func writeZip(writer io.Writer, files []fileEntry) error {
+	zipWriter := zip.NewWriter(writer)
+	defer zipWriter.Close()
+
+	for _, file := range files {
+		zipFile, err := zipWriter.Create(file.name)
+		if err != nil {
+			return err
+		}
+
+		_, err = zipFile.Write(file.data)
+		if err != nil {
+			return err
+		}
+	}
+
+	return zipWriter.Close()
+}