wifiweb.py
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import network
import socket
import machine
import time
ap = network.WLAN(network.AP_IF)
ap.active(True)
ap.config(essid='MUD')
ap.config(authmode=1)
class DNSQuery:
def __init__(self, data):
self.data=data
self.dominio=''
print("Reading datagram data...")
m = data[2] # ord(data[2])
tipo = (m >> 3) & 15 # Opcode bits
if tipo == 0: # Standard query
ini=12
lon=data[ini] # ord(data[ini])
while lon != 0:
self.dominio+=data[ini+1:ini+lon+1].decode("utf-8") +'.'
ini+=lon+1
lon=data[ini] #ord(data[ini])
def respuesta(self, ip):
packet=b''
print("Resposta {} == {}".format(self.dominio, ip))
if self.dominio:
packet+=self.data[:2] + b"\x81\x80"
packet+=self.data[4:6] + self.data[4:6] + b'\x00\x00\x00\x00' # Questions and Answers Counts
packet+=self.data[12:] # Original Domain Name Question
packet+= b'\xc0\x0c' # Pointer to domain name
packet+= b'\x00\x01\x00\x01\x00\x00\x00\x3c\x00\x04' # Response type, ttl and resource data length -> 4 bytes
packet+=bytes(map(int,ip.split('.'))) # 4 bytes of IP
return packet
def accept_conn(listen_sock):
cl, addr = listen_sock.accept()
print('client connected from', addr)
request = cl.recv(2048)
if 'GET /?' in request:
request = str(request)
part = request.split(' ')[1]
params = part.split('?')[1].split('&')
network_param = params[0].split('=')[1]
network_pass_param = params[1].split('=')[1]
print("Setting network to: {}".format(network_param))
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect(network_param, network_pass_param)
while sta_if.isconnected() == False:
time.sleep(1)
cl.send('<html><body>Configuration Saved!<br><br>Network: {} <br>IP Address: {}<br>Password: {}<br><br><br>Restarting Device...</body></html>'.format(network_param, sta_if.ifconfig()[0], network_pass_param))
cl.close()
time.sleep(20)
machine.reset()
return
print('Getting Network STA_IF')
sta_if = network.WLAN(network.STA_IF)
print('Starting Network Scan...')
avail_networks = sta_if.scan()
print('Network Scan Complete')
endpoint_string = ""
for endpoint in avail_networks:
endpoint_string += "<option value={}>{}</option>".format(endpoint[0].decode('latin1'), endpoint[0].decode('latin1'))
response = """
<html>
<head>
<title>Mud Setup</title>
</head>
<body margin='10px'>
<h2>Configure Wifi Network</h2>
<form action='/' method='GET'>
Network: <select name='network' id='network'>
{}
</select><br><br>
Password: <input type='text' name='networkpass' id='networkpass'>
<input type="submit">
</form>
</body>
</html>
\n\n""".format(endpoint_string)
cl.send(response)
time.sleep(0.001)
cl.close()
listen_s = None
port = 80
s = socket.socket()
ai = socket.getaddrinfo("0.0.0.0", port)
addr = ai[0][4]
s.bind(addr)
s.listen(1)
s.setsockopt(socket.SOL_SOCKET, 20, accept_conn)
iface = network.WLAN(network.AP_IF)
if iface.active():
print("Web Server daemon started on ws://%s:%d" % (iface.ifconfig()[0], port))
# def accept_dns(listen_sock):
# cl, addr = listen_sock.accept()
# print('DNS client connected from', addr)
# try:
# data, addr = udps.recvfrom(1024)
# print("incomming datagram...")
# p=DNSQuery(data)
# udps.sendto(p.respuesta(ip), addr)
# print('Replying: {:s} -> {:s}'.format(p.dominio, ip))
# except:
# print('No dgram')
# # SETUP DNS
# ip=ap.ifconfig()[0]
# print('DNS Server: dom.query. 60 IN A {:s}'.format(ip))
# udps = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# udps.setblocking(False)
# udps.bind(('',53))
# udps.setsockopt(socket.SOL_SOCKET, 20, accept_dns)