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November 12, 2019 17:35
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Simple python web server (GET, POST, HEAD)
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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 | |
| """ | |
| import argparse | |
| from http.server import HTTPServer, BaseHTTPRequestHandler | |
| from urllib.parse import parse_qs | |
| from cgi import parse_header, parse_multipart | |
| import json | |
| """ | |
| from sys import version as python_version | |
| from cgi import parse_header, parse_multipart | |
| if python_version.startswith('3'): | |
| from urllib.parse import parse_qs | |
| from http.server import BaseHTTPRequestHandler | |
| else: | |
| from urlparse import parse_qs | |
| from BaseHTTPServer import 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): | |
| content = f"<html><body><h1>{message}</h1></body></html>" | |
| return content.encode("utf8") | |
| def do_GET(self): | |
| self._set_headers() | |
| self.wfile.write(self._html("GET REQUEST")) | |
| def do_POST(self): | |
| postvars = self.parse_POST() | |
| print(json.loads(postvars)) | |
| def do_HEAD(self): | |
| self._set_headers() | |
| def parse_POST(self): | |
| ctype, pdict = parse_header(self.headers['content-type']) | |
| print(self.headers) | |
| if ctype == 'multipart/form-data': | |
| postvars = cgi.parse_multipart(self.rfile, pdict) | |
| if ctype == 'application/json': | |
| length = int(self.headers['content-length']) | |
| postvars = self.rfile.read(length).decode('utf8') | |
| elif ctype != 'application/x-www-form-urlencoded': | |
| length = int(self.headers['content-length']) | |
| postvars = parse_qs(self.rfile.read(length), keep_blank_values=1) | |
| else: | |
| postvars = {} | |
| return postvars | |
| def run(server_class=HTTPServer, handler_class=S, addr="127.0.0.1", port=7777): | |
| 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="127.0.0.1", | |
| help="Specify the IP address on which the server listens", | |
| ) | |
| parser.add_argument( | |
| "-p", | |
| "--port", | |
| type=int, | |
| default=7777, | |
| help="Specify the port on which the server listens", | |
| ) | |
| args = parser.parse_args() | |
| run(addr=args.listen, port=args.port) |
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