def serve_file(sock: socket.socket, path: str, root: str = "www") -> None:
"""Given a socket and the relative path to a file (relative to
SERVER_SOCK), send that file to the socket if it exists. If the
file doesn't exist, send a "404 Not Found" response.
"""
root_path = os.path.abspath(root)
if path == "/":
path = "/index.html"
abspath = os.path.normpath(os.path.join(root_path, path.lstrip("/")))
if not abspath.startswith(root_path):
Response.from_status_code(404).send(sock)
return
try:
with open(abspath, "rb") as f:
content_type, encoding = mimetypes.guess_type(abspath)
if content_type is None:
content_type = "application/octet-stream"
if encoding is not None:
content_type += f"; charset={encoding}"
res = Response(status="200 OK", body=f)
res.headers.add("content-type", content_type)
res.send(sock)
return
except FileNotFoundError:
Response.from_status_code(404).send(sock)
return
def handle_client(self, client_sock: socket.socket,
client_addr: typing.Tuple[str, int]) -> None:
print(f"New connection from {client_addr}...")
with client_sock:
try:
req = Request.from_socket(client_sock)
if "100-continue" in req.headers.get("expect", ""):
Response.from_status_code(100).send(client_sock)
try:
content_len = int(req.headers.get("content-length", "0"))
except ValueError:
content_len = 0
if content_len:
body = req.body.read(content_len)
print("Request body", body)
if req.method != 'GET':
Response.from_status_code(405).send(client_sock)
return
serve_file(client_sock, req.path)
except Exception as e:
print(f"Failed to parse request: {e}")
Response.from_status_code(404).send(client_sock)
