http2com.py

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# HTTP 2 COM Service
# Copyright 2013 IGpython UK
# All Rights Reserved.
# Developer: Dairon Medina <dairon.medina AT gmail DOT com>
import os, sys
import inspect
import ConfigParser, codecs

import serial
import eventlet
from eventlet import wsgi
import httplib
import ftplib
import urllib
import SocketServer
import BaseHTTPServer
import json



ROOT = os.path.dirname(sys.executable)
path = lambda *a: os.path.join(ROOT, *a)

settings = ConfigParser.ConfigParser()
settings.read(path('config/settings.conf'))

class Http2ComServer(object):
 
 def bridge(self, env, start_response):
 port = settings.get('SERIAL', 'PORT')
 self.ser = serial.Serial(port=port, baudrate=settings.getint('SERIAL', 'BAUDRATE'), parity=settings.get('SERIAL', 'PARITY'), stopbits=settings.getint('SERIAL', 'STOPBITS'),bytesize=settings.getint('SERIAL', 'BYTESIZE'))

 if self.ser is not None:
 data = env['PATH_INFO'][1:]
 if settings.getboolean('SERIAL', 'ADDENDLINE'):
 data = str(data) + '\n\r'
 print data
 self.ser.write(data)
 raw = self.ser.readline()
 self.ser.close()
 start_response('200 OK', [('Content-Type', 'application/json')])
 response = {'status': 'ok', 'content': str(raw)}
 return json.dumps(response)
 else:
 start_response('200 OK', [('Content-Type', 'application/json')])
 response = {'status': 'error', 'content': 'Serial port dont return any response or there is no device connected to it.'}
 return json.dumps(response)

 def run(self):
 """
 Run the WSGI Server
 """
 sever = wsgi.server(eventlet.listen(('', settings.getint('WEBSERVER', 'PORT'))), self.bridge, keepalive=False)
 server.kil
 self.ser.close()

if __name__ == "__main__":
 srv = Http2ComServer()
 srv.run()