core/homeassistant/httpinterface.py
2013-09-24 18:41:02 -07:00

116 lines
3.3 KiB
Python

"""
homeassistant.httpinterface
~~~~~~~~~~~~~~~~~~~~~~~~~~~
This module provides an HTTP interface for debug purposes.
"""
import threading
import urlparse
import logging
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
import requests
from .core import EVENT_START, EVENT_SHUTDOWN
SERVER_HOST = '127.0.0.1'
SERVER_PORT = 8080
class HTTPInterface(threading.Thread):
""" Provides an HTTP interface for Home Assistant. """
def __init__(self, eventbus, statemachine):
threading.Thread.__init__(self)
self.server = HTTPServer((SERVER_HOST, SERVER_PORT), RequestHandler)
self.server.eventbus = eventbus
self.server.statemachine = statemachine
self._stop = threading.Event()
eventbus.listen(EVENT_START, lambda event: self.start())
eventbus.listen(EVENT_SHUTDOWN, lambda event: self.stop())
def run(self):
""" Start the HTTP interface. """
logging.getLogger(__name__).info("Starting")
while not self._stop.is_set():
self.server.handle_request()
def stop(self):
""" Stop the HTTP interface. """
self._stop.set()
# Trigger a fake request to get the server to quit
requests.get("http://{}:{}".format(SERVER_HOST, SERVER_PORT))
class RequestHandler(BaseHTTPRequestHandler):
""" Handles incoming HTTP requests """
#Handler for the GET requests
def do_GET(self):
""" Handle incoming GET requests. """
if self.path == "/":
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
write = self.wfile.write
# Describe state machine:
categories = []
write("<table>")
write("<tr><th>Name</th><th>State</th><th>Last Changed</th></tr>")
for category, state, last_changed in self.server.statemachine.get_states():
categories.append(category)
write("<tr><td>{}</td><td>{}</td><td>{}</td></tr>".format(category, state, last_changed.strftime("%H:%M:%S %d-%m-%Y")))
write("</table>")
# Small form to change the state
write("<br />Change state:<br />")
write("<form action='change_state' method='POST'>")
write("<select name='category'>")
for category in categories:
write("<option>{}</option>".format(category))
write("</select>")
write("<input name='new_state' />")
write("<input type='submit' value='set state' />")
write("</form>")
# Describe event bus:
for category in self.server.eventbus.listeners:
write("Event {}: {} listeners<br />".format(category, len(self.server.eventbus.listeners[category])))
else:
self.send_response(404)
def do_POST(self):
""" Handle incoming POST requests. """
length = int(self.headers['Content-Length'])
post_data = urlparse.parse_qs(self.rfile.read(length))
if self.path == "/change_state":
self.server.statemachine.set_state(post_data['category'][0], post_data['new_state'][0])
self.send_response(301)
self.send_header("Location", "/")
self.end_headers()
else:
self.send_response(404)