sensor-dashboard/server.py

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2023-09-27 09:14:27 +00:00
import http.server
import os
import time
import math
import subprocess
class RefreshingHandler(http.server.SimpleHTTPRequestHandler):
def do_GET(self):
# check whether x.csv is up to date
if self.path.endswith("x.csv"):
mtime = os.stat('/run/user/pi/x.csv').st_mtime
current = math.floor(time.time() / (60 * 10)) * 60 * 10
if mtime < current:
print("refreshing data... old:", mtime, "now:", current)
print("result", subprocess.run(['sh', '-c', './target/release/sensor-dashboard sensors.db > /run/user/pi/x.csv']))
super().do_GET()
# derived from: https://github.com/python/cpython/blob/3.11/Lib/http/server.py
if __name__ == '__main__':
import contextlib
handler_class = RefreshingHandler
directory = os.getcwd()
# ensure dual-stack is not disabled; ref #38907
class DualStackServer(http.server.ThreadingHTTPServer):
def server_bind(self):
# suppress exception when protocol is IPv4
with contextlib.suppress(Exception):
self.socket.setsockopt(
socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
return super().server_bind()
def finish_request(self, request, client_address):
self.RequestHandlerClass(request, client_address, self,
directory=directory)
http.server.test(
HandlerClass=handler_class,
ServerClass=DualStackServer,
port=24473,
bind=None,
protocol="HTTP/1.1",
)