#/usr/bin/python3
#
#

# Original copied from https://thepacketgeek.com/give-exabgp-an-http-api-with-flask/,
# liberally modified after.

import cgi
import http.server
import socketserver
from sys import stdout,stdin
from syslog import syslog,openlog,LOG_DEBUG
 
PORT = 9977
 
class ServerHandler(http.server.SimpleHTTPRequestHandler):
 
	def createResponse(self, command):
		""" Send command string back as confirmation """
		self.send_response(200)
		self.send_header('Content-Type', 'application/text')
		self.end_headers()
		self.wfile.write(command.encode())
		
 
	def do_POST(self):
		""" Process command from POST and output to STDOUT """
		form = cgi.FieldStorage(
			fp=self.rfile,
			headers=self.headers,
			environ={'REQUEST_METHOD':'POST'})
		command = form.getvalue('command')
		syslog(LOG_DEBUG,'Received: <%s>' % command)
		
		response = self.handle_data(command)
		self.createResponse('Success: %s' % response)

	def handle_data(self,command):
		stdout.write('%s\n' % command)
		stdout.flush()
		syslog(LOG_DEBUG,'Waiting for response')
		response = ''
		for line in stdin:
			syslog(LOG_DEBUG,'Response: <%s>' % line.rstrip())
			response += 'Received line: <%s>' % line
		syslog(LOG_DEBUG,'End of response.')
		return response
        
         
handler = ServerHandler
httpd = socketserver.TCPServer(('', PORT), handler)
stdout.write('serving at port %s\n' % PORT)
stdout.flush()
httpd.serve_forever()