Tests BaseHTTPRequestHandler

server.py

#!/usr/bin/env python

from http.server import HTTPServer, BaseHTTPRequestHandler


class HTTPRequestHandler(BaseHTTPRequestHandler):
    protocol_version = "HTTP/1.0"

    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-Type", "text/plain")
        self.wfile.write(b"Hello World!\n")
        self.end_headers 


if __name__ == "__main__":
    server = HTTPServer(('', 8080), HTTPRequestHandler)
    server.serve_forever()

server_output.txt

$ python3 examples/charpter_2/example1-1.py 
127.0.0.1 - - [14/Feb/2024 18:46:55] "GET / HTTP/1.1" 200 

test.py

>>> import urllib.request
>>> r = urllib.request.Request('http://localhost:8080')
>>> response = urllib.request.urlopen(r)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.10/urllib/request.py", line 216, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.10/urllib/request.py", line 519, in open
    response = self._open(req, data)
  File "/usr/lib/python3.10/urllib/request.py", line 536, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
  File "/usr/lib/python3.10/urllib/request.py", line 496, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.10/urllib/request.py", line 1377, in http_open
    return self.do_open(http.client.HTTPConnection, req)
  File "/usr/lib/python3.10/urllib/request.py", line 1352, in do_open
    r = h.getresponse()
  File "/usr/lib/python3.10/http/client.py", line 1375, in getresponse
    response.begin()
  File "/usr/lib/python3.10/http/client.py", line 318, in begin
    version, status, reason = self._read_status()
  File "/usr/lib/python3.10/http/client.py", line 300, in _read_status
    raise BadStatusLine(line)
http.client.BadStatusLine: Hello World!

test_shell.txt

$ curl -v  http://localhost:8080/
*   Trying 127.0.0.1:8080...
* Connected to localhost (127.0.0.1) port 8080 (#0)
> GET / HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.81.0
> Accept: */*
> 
* Received HTTP/0.9 when not allowed
* Closing connection 0
curl: (1) Received HTTP/0.9 when not allowed