Launcher, app/base, sentry, update service

pkg/tar/tar.go

@@ -0,0 +1,76 @@
+// Copyright (c) 2020 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package tar
+
+import (
+	"archive/tar"
+	"io"
+	"os"
+	"path/filepath"
+	"runtime"
+
+	"github.com/sirupsen/logrus"
+)
+
+func UntarToDir(r io.Reader, dir string) error {
+	tr := tar.NewReader(r)
+
+	for {
+		header, err := tr.Next()
+		if err == io.EOF {
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+		if header == nil {
+			continue
+		}
+
+		target := filepath.Join(dir, header.Name)
+
+		switch {
+		case header.Typeflag == tar.TypeSymlink:
+			if err := os.Symlink(header.Linkname, target); err != nil {
+				return err
+			}
+
+		case header.FileInfo().IsDir():
+			if err := os.MkdirAll(target, header.FileInfo().Mode()); err != nil {
+				return err
+			}
+
+		default:
+			f, err := os.Create(target)
+			if err != nil {
+				return err
+			}
+			if _, err := io.Copy(f, tr); err != nil { // nolint[gosec]
+				return err
+			}
+			if runtime.GOOS != "windows" {
+				if err := f.Chmod(header.FileInfo().Mode()); err != nil {
+					return err
+				}
+			}
+			if err := f.Close(); err != nil {
+				logrus.WithError(err).Error("Failed to close file")
+			}
+		}
+	}
+}