add get public ip script

diff --git a/_site/cgi/pubip b/_site/cgi/pubip
new file mode 100755 (executable)
index 0000000..06e649f
--- /dev/null
+++ b/_site/cgi/pubip
@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+# encoding: utf-8
+# Copyright (C) 2016 Ian Kelling
+
+# This program 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 2 of the License, or
+# (at your option) any later version.
+
+# 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/>.
+
+Encoding.default_external = Encoding::UTF_8
+
+require 'cgi'
+
+puts "Content-type: text/plain\n\n"
+cgi = CGI.new
+puts cgi.remote_addr
+exit 0