1 files changed, 43 insertions, 0 deletions
diff --git a/src/validators/timezone b/src/validators/timezone
new file mode 100755
index 000000000..d7a8f64c4
--- /dev/null
+++ b/src/validators/timezone
@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import argparse
+
+from sys import exit
+from subprocess import Popen, PIPE, STDOUT
+
+def _cmd(cmd):
+    p = Popen(cmd, stdout=PIPE, stderr=STDOUT, shell=True)
+    tmp = p.communicate()[0].strip()
+    return tmp.decode()
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--validate", action="store", help="Check if timezone is valid")
+
+if __name__ == '__main__':
+    args = parser.parse_args()
+
+    if args.validate:
+        tz_data = _cmd('find /usr/share/zoneinfo/posix -type f -or -type l | sed -e s:/usr/share/zoneinfo/posix/::')
+        tz_data = tz_data.split('\n')
+        # if timezone can't be found in list it's invalid
+        if args.validate not in tz_data:
+            exit(1)
+    else:
+        parser.print_help()
+        exit(1)
+
+    exit(0)