|
|
|
|
#! /usr/bin/python3
|
|
|
|
|
from http.server import SimpleHTTPRequestHandler
|
|
|
|
|
import socketserver
|
|
|
|
|
import logging
|
|
|
|
|
from led import setLED
|
|
|
|
|
|
|
|
|
|
responsehtml = '<html><body> <h3>LED-Server</h3><p> LED ist $ledstate_str</p></body></html>'
|
|
|
|
|
logging.basicConfig( format='%(asctime)-15s [%(levelname)s] %(funcName)s: %(message)s', level=logging.DEBUG)
|
|
|
|
|
|
|
|
|
|
# Da http ein stateless Protokoll ist, wird der Handler bei jedem Request neu
|
|
|
|
|
# aufgebaut! Deswegen benutzen wir hier setup() statt __init__()
|
|
|
|
|
class LEDHttpRequestHandler(SimpleHTTPRequestHandler):
|
|
|
|
|
def setup(self):
|
|
|
|
|
logging.debug('setting up Handler')
|
|
|
|
|
self.ledstate = False
|
|
|
|
|
super().setup()
|
|
|
|
|
|
|
|
|
|
def do_GET(self):
|
|
|
|
|
logging.debug(f'path= {self.path}')
|
|
|
|
|
logging.debug('GET: empfangen')
|
|
|
|
|
self.send_response(200)
|
|
|
|
|
self.send_header('Content-Type:','text/html')
|
|
|
|
|
# Ende der Header markieren, dass ist wichtig, sonst kommt der Response nicht zurück!
|
|
|
|
|
self.end_headers()
|
|
|
|
|
|
|
|
|
|
#Wenn im Requestpath 'led='on'enthalten ist, schalten wir die LED ein. Bei off aus
|
|
|
|
|
if '?led=' in self.path:
|
|
|
|
|
if 'on' in self.path:
|
|
|
|
|
logging.debug('schalte LED ein')
|
|
|
|
|
self.ledstate = True
|
|
|
|
|
setLED(self.ledstate)
|
|
|
|
|
elif 'off' in self.path:
|
|
|
|
|
logging.debug('schalte LED aus')
|
|
|
|
|
self.ledstate = False
|
|
|
|
|
setLED(self.ledstate)
|
|
|
|
|
|
|
|
|
|
logging.debug(f'ledstate={self.ledstate}')
|
|
|
|
|
|
|
|
|
|
response = responsehtml.replace('$ledstate_str',('aus','an')[self.ledstate])
|
|
|
|
|
|
|
|
|
|
self.wfile.write(response.encode())
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class http_server:
|
|
|
|
|
def __init__(self):
|
|
|
|
|
def handler(*args):
|
|
|
|
|
myHandler(*args)
|
|
|
|
|
server = HTTPServer(('', 8080), handler)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
|
logging.debug('MAIN: start')
|
|
|
|
|
setLED(False) # Beim Start LED ausschalten
|
|
|
|
|
#Request-Handler aufbauen
|
|
|
|
|
handler = LEDHttpRequestHandler
|
|
|
|
|
handler.ledstate = False
|
|
|
|
|
#Socketserver mit unserem Handler starten
|
|
|
|
|
with socketserver.TCPServer(('',8080),handler) as httpd:
|
|
|
|
|
logging.info('SERVER: start')
|
|
|
|
|
try:
|
|
|
|
|
#Server läuft bis CTRL-C gedrückt wird.
|
|
|
|
|
httpd.serve_forever()
|
|
|
|
|
except KeyboardInterrupt:
|
|
|
|
|
pass
|
|
|
|
|
finally:
|
|
|
|
|
setLED(False)
|
|
|
|
|
|
|
|
|
|
|
