python3 HTTP Echo Server with directory browsing

python_webserver.py

#!/usr/bin/env python3
# Author: Mohan Balasundaram
# Date: 02/05/2019
# Purpose: HTTP Echo server with directory browsing
# To run a http server and return all request headers in / path
# and to allow directory browsing in any other path prefix

from http.server import BaseHTTPRequestHandler, SimpleHTTPRequestHandler
import urllib.parse

class GetHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        parsed_path = urllib.parse.urlparse(self.path)
        message_parts = [
                'CLIENT VALUES:',
                'client_address=%s (%s)' % (self.client_address,
                                            self.address_string()),
                'command=%s' % self.command,
                'path=%s' % self.path,
                'real path=%s' % parsed_path.path,
                'query=%s' % parsed_path.query,
                'request_version=%s' % self.request_version,
                '',
                'SERVER VALUES:',
                'server_version=%s' % self.server_version,
                'sys_version=%s' % self.sys_version,
                'protocol_version=%s' % self.protocol_version,
                '',
                'HEADERS RECEIVED:',
                ]
        for name, value in sorted(self.headers.items()):
            message_parts.append('%s=%s' % (name, value.rstrip()))
        message_parts.append('')
        message = '\r\n'.join(message_parts)
        self.send_response(200)
        self.end_headers()
        self.wfile.write(message.encode('utf-8'))
        return

class RouteHandler(SimpleHTTPRequestHandler):
    def do_GET(self):
        if self.path == '/':
            return GetHandler.do_GET(self)
        else:
            super(RouteHandler, self).do_GET()


if __name__ == '__main__':
    from http.server import HTTPServer
    server = HTTPServer(('0.0.0.0', 8080), RouteHandler)
    print('Starting server, use <Ctrl-C> to stop')
    server.serve_forever()