You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.8 KiB
76 lines
2.8 KiB
#
|
|
# MicroPython http_server_simplistic.py example
|
|
#
|
|
# This example shows how to write the smallest possible HTTP
|
|
# server in MicroPython. With comments and convenience code
|
|
# removed, this example can be compressed literally to ten
|
|
# lines. There's a catch though - read comments below for
|
|
# details, and use this code only for quick hacks, preferring
|
|
# http_server.py for "real thing".
|
|
#
|
|
try:
|
|
import usocket as socket
|
|
except:
|
|
import socket
|
|
|
|
|
|
CONTENT = b"""\
|
|
HTTP/1.0 200 OK
|
|
|
|
Hello #%d from MicroPython!
|
|
"""
|
|
|
|
def main():
|
|
s = socket.socket()
|
|
|
|
# Bind to (allow to be connected on ) all interfaces. This means
|
|
# this server will be accessible to other hosts on your local
|
|
# network, and if your server has direct (non-firewalled) connection
|
|
# to the Internet, then to anyone on the Internet. We bind to all
|
|
# interfaces to let this example work easily on embedded MicroPython
|
|
# targets, which you will likely access from another machine on your
|
|
# local network. Take care when running this on an Internet-connected
|
|
# machine though! Replace "0.0.0.0" with "127.0.0.1" if in doubt, to
|
|
# make the server accessible only on the machine it runs on.
|
|
ai = socket.getaddrinfo("0.0.0.0", 8080)
|
|
print("Bind address info:", ai)
|
|
addr = ai[0][-1]
|
|
|
|
# A port on which a socket listened remains inactive during some time.
|
|
# This means that if you run this sample, terminate it, and run again
|
|
# you will likely get an error. To avoid this timeout, set SO_REUSEADDR
|
|
# socket option.
|
|
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
|
|
s.bind(addr)
|
|
s.listen(5)
|
|
print("Listening, connect your browser to http://<this_host>:8080/")
|
|
|
|
counter = 0
|
|
while True:
|
|
res = s.accept()
|
|
client_s = res[0]
|
|
client_addr = res[1]
|
|
print("Client address:", client_addr)
|
|
print("Client socket:", client_s)
|
|
# We assume here that .recv() call will read entire HTTP request
|
|
# from client. This is usually true, at least on "big OS" systems
|
|
# like Linux/MacOS/Windows. But that doesn't have to be true in
|
|
# all cases, in particular on embedded systems, when there can
|
|
# easily be "short recv", where it returns much less than requested
|
|
# data size. That's why this example is called "simplistic" - it
|
|
# shows that writing a web server in Python that *usually works* is
|
|
# ten lines of code, and you can use this technique for quick hacks
|
|
# and experimentation. But don't do it like that in production
|
|
# applications - instead, parse HTTP request properly, as shown
|
|
# by http_server.py example.
|
|
req = client_s.recv(4096)
|
|
print("Request:")
|
|
print(req)
|
|
client_s.send(CONTENT % counter)
|
|
client_s.close()
|
|
counter += 1
|
|
print()
|
|
|
|
|
|
main()
|
|
|