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"""
The mighty silly webserver written in python for no good reason
"""
import time
import json
import gzip
import socket
import asyncio
import htmlmin
import aiofiles
import threading
class Request:
"""
Just a request
"""
def __init__(self):
self.type: str = ""
self.path: str = ""
@staticmethod
def create(raw_request: bytes):
"""
Creates self class from raw request
:param raw_request: bytes
:return: self
"""
# new request
request = Request()
# fix type and path
request.type = raw_request[:raw_request.find(b' ')].decode("ascii")
request.path = raw_request[len(request.type)+1:raw_request.find(b' ', len(request.type)+1)].decode("ascii")
# decode headers
for raw_header in raw_request.split(b'\r\n'):
if len(pair := raw_header.decode("ascii").split(":")) == 2:
key, val = pair
val = val.strip()
# set attribute to key value pair
setattr(request, key, val)
# return request
return request
def __str__(self):
return '\n'.join([f"{key}: {val}" for key, val in self.__dict__.items()])
class HTTPServer:
"""
The mighty HTTP server
"""
def __init__(self, *, port: int, packet_size: int = 2048):
self.bind_port: int = port
self.packet_size: int = packet_size
self.socket: socket.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.clients: list[socket.socket] = []
def start(self):
"""
Method to start the web server
"""
# bind and start listening to port
self.socket.bind(('', self.bind_port))
self.socket.listen()
# start the listening thread
threading.Thread(target=self._listen_thread, daemon=True).start()
# keep alive
try:
while True:
# sleep 100 ms, otherwise the while true will 100% one of your cores
time.sleep(0.1)
# shutdown on keyboard interrupt
except KeyboardInterrupt:
self.socket.close()
print("Closed.")
def _listen_thread(self):
"""
Listening for new connections
"""
# run the coroutine
asyncio.run(self._thread_listen_coro())
async def _thread_listen_coro(self):
while True:
# accept new connection, add to client list and start listening to it
client, _ = self.socket.accept()
self.clients.append(client)
await self.client_handle(client)
async def client_handle(self, client: socket.socket):
"""
Handles client's connection
"""
while True:
# receive request from client
raw_request = self._recvall(client)
# decode request
request: Request = Request.create(raw_request)
self._close_client(client)
break
def _close_client(self, client: socket.socket):
"""
Closes a client
"""
client.close()
if client in self.clients:
self.clients.remove(client)
def _recvall(self, client: socket.socket) -> bytes:
"""
Receive All (just receives the whole message, instead of 1 packet at a time)
"""
# create message buffer
buffer: bytearray = bytearray()
# start fetching the message
while True:
try:
# fetch packet
message = client.recv(self.packet_size)
except OSError:
break
# that happens when user stops loading the page
if message == b'':
break
# append fetched message to the buffer
buffer += message
# check for EoF
if buffer[-4:] == b'\r\n\r\n':
# return the received message
return buffer
# return empty buffer on error
return b''
def main():
server = HTTPServer(port=13701)
server.start()
if __name__ == '__main__':
main()
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