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run_server.py
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run_server.py
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import os
import time
import datetime
from PIL import Image
from http.server import HTTPServer, BaseHTTPRequestHandler
import secrets
import socket
from weather_landscape import WeatherLandscape
SERV_IPADDR = "0.0.0.0"
SERV_PORT = 3355
EINKFILENAME = "test.bmp"
USERFILENAME = "test1.bmp"
FILETOOOLD_SEC = 60*10
WEATHER = WeatherLandscape()
class WeatherLandscapeServer(BaseHTTPRequestHandler):
def do_GET(self):
if self.path == '/':
self.path = '/index.html'
print("GET:",self.path)
if (self.path.startswith('/index.html')):
self.send_response(200)
self.end_headers()
self.wfile.write(bytes(self.IndexHtml(), 'utf-8'))
if (self.path.startswith('/'+EINKFILENAME)) or (self.path.startswith('/'+USERFILENAME)):
self.CreateWeatherImages()
databytes = bytearray()
try:
file_name = WEATHER.TmpFilePath(self.path[1:])
f = open(file_name, "rb")
databytes = f.read()
f.close()
self.send_response(200)
s.send_header("Content-type", "image/bmp")
except:
file_to_open = "File not found"
self.send_response(404)
self.end_headers()
self.wfile.write(databytes)
def IsFileTooOld(self, filename):
return (not os.path.isfile(filename)) or ( (time.time() - os.stat(filename).st_mtime) > FILETOOOLD_SEC )
def CreateWeatherImages(self):
user_file_name = WEATHER.TmpFilePath(USERFILENAME)
eink_file_name = WEATHER.TmpFilePath(EINKFILENAME)
if not self.IsFileTooOld(user_file_name):
return
img = WEATHER.MakeImage()
img.save(user_file_name)
img = img.rotate(-90, expand=True)
img = img.transpose(Image.FLIP_TOP_BOTTOM)
img.save(eink_file_name)
def IndexHtml(self):
body = '<h1>Weather as Landscape</h1>'
body+='<p>Place: '+("%.4f" % secrets.OWM_LAT) +' , '+("%.4f" % secrets.OWM_LON)+'</p>'
body+='<p><img src="'+USERFILENAME+'" alt="Weather" "></p>'
body+='<p>ESP32 URL: <span id="eink"></span></p>'
body+='<script> document.getElementById("eink").innerHTML = window.location+"'+EINKFILENAME+'" ;</script>'
return """
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Weather as Landscape</title>
</head>
<body> """ + body + """
</body>
</html>"""
#todo: implement support for multiple network interfaces
def get_my_ips():
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
try:
s.connect(('8.8.8.8', 80))
yield s.getsockname()[0]
finally:
s.close()
httpd = HTTPServer((SERV_IPADDR,SERV_PORT),WeatherLandscapeServer)
for ip in get_my_ips():
print(r"Serving at http://%s:%i/" % (ip,SERV_PORT))
httpd.serve_forever()