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a minimal http server in python. Responds to GET, HEAD, POST requests, but will fail on anything else.
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| #!/usr/bin/env python | |
| """ | |
| Very simple HTTP server in python (Updated for Python 3.7) | |
| Usage: | |
| ./dummy-web-server.py -h | |
| ./dummy-web-server.py -l localhost -p 8000 | |
| Send a GET request: | |
| curl http://localhost:8000 | |
| Send a HEAD request: | |
| curl -I http://localhost:8000 | |
| Send a POST request: | |
| curl -d "foo=bar&bin=baz" http://localhost:8000 | |
| This code is available for use under the MIT license. | |
| ---- | |
| Copyright 2021 Brad Montgomery | |
| Permission is hereby granted, free of charge, to any person obtaining a copy of this software and | |
| associated documentation files (the "Software"), to deal in the Software without restriction, | |
| including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, | |
| subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in all copies or substantial | |
| portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT | |
| LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
| IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE | |
| OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| """ | |
| import argparse | |
| from http.server import HTTPServer, BaseHTTPRequestHandler | |
| class S(BaseHTTPRequestHandler): | |
| def _set_headers(self): | |
| self.send_response(200) | |
| self.send_header("Content-type", "text/html") | |
| self.end_headers() | |
| def _html(self, message): | |
| """This just generates an HTML document that includes `message` | |
| in the body. Override, or re-write this do do more interesting stuff. | |
| """ | |
| content = f"<html><body><h1>{message}</h1></body></html>" | |
| return content.encode("utf8") # NOTE: must return a bytes object! | |
| def do_GET(self): | |
| self._set_headers() | |
| self.wfile.write(self._html("hi!")) | |
| def do_HEAD(self): | |
| self._set_headers() | |
| def do_POST(self): | |
| # Doesn't do anything with posted data | |
| self._set_headers() | |
| self.wfile.write(self._html("POST!")) | |
| def run(server_class=HTTPServer, handler_class=S, addr="localhost", port=8000): | |
| server_address = (addr, port) | |
| httpd = server_class(server_address, handler_class) | |
| print(f"Starting httpd server on {addr}:{port}") | |
| httpd.serve_forever() | |
| if __name__ == "__main__": | |
| parser = argparse.ArgumentParser(description="Run a simple HTTP server") | |
| parser.add_argument( | |
| "-l", | |
| "--listen", | |
| default="localhost", | |
| help="Specify the IP address on which the server listens", | |
| ) | |
| parser.add_argument( | |
| "-p", | |
| "--port", | |
| type=int, | |
| default=8000, | |
| help="Specify the port on which the server listens", | |
| ) | |
| args = parser.parse_args() | |
| run(addr=args.listen, port=args.port) |
Just tumbled into this myself. ! fantastic.
For python 3.7 on windows 10, I had to add decode to the post_data.
def do_POST(self):
content_length = int(self.headers['Content-Length']) # <--- Gets the size of data
post_data = self.rfile.read(content_length) # <--- Gets the data itself
pd = post_data.decode("utf-8") # <-------- ADD this line
self._set_headers()
self.wfile.write(self._html("POST! "+pd))
I need help, for the 'Content-Length' its always 0, is there something i'm doing wrong?
Looks great! only missing multi-thread/daemon feature ;)
Great Simple Little Utility. For those asking about extra features like response codes etc. This is a VERY SIMPLE Server. It does as what's advertised.
This probably still needs a 404 somewhere to show how to send proper http status numbers.
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good start!