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| author | RossTheRoss <mstrapp@protonmail.com> | 2021-05-16 21:38:59 -0500 |
|---|---|---|
| committer | RossTheRoss <mstrapp@protonmail.com> | 2021-05-16 21:38:59 -0500 |
| commit | 9148fa6e2fad9d54e3451a4478e03f55f0a9fa3c (patch) | |
| tree | 9e739b11361f5fd122b31cfce107947502b69809 /csci4131/hw4/strap012/strap012.py | |
| parent | Add trash (diff) | |
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Rearrange files
Diffstat (limited to 'csci4131/hw4/strap012/strap012.py')
| -rw-r--r-- | csci4131/hw4/strap012/strap012.py | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/csci4131/hw4/strap012/strap012.py b/csci4131/hw4/strap012/strap012.py deleted file mode 100644 index 31668af..0000000 --- a/csci4131/hw4/strap012/strap012.py +++ /dev/null @@ -1,147 +0,0 @@ -#!/usr/bin/env python3 -# See https://docs.python.org/3.2/library/socket.html -# for a decscription of python socket and its parameters -import socket -import os -import stat - - -from threading import Thread -from argparse import ArgumentParser -from urllib.parse import unquote - -BUFSIZE = 4096 -CRLF = '\r\n' -NOT_FOUND = 'HTTP/1.1 404 NOT FOUND{}Connection: close{}{}'.format(CRLF, CRLF, CRLF) -FORBIDDEN = 'HTTP/1.1 403 FORBIDDEN{}Connection: close{}{}'.format(CRLF, CRLF, CRLF) -METHOD_NOT_ALLOWED = 'HTTP/1.1 405 METHOD NOT ALLOWED{}Allow: GET, HEAD, POST {}Connection: close{}{}'.format(CRLF, CRLF, CRLF, CRLF) -OK = 'HTTP/1.1 200 OK{}Connection: close{}'.format(CRLF, CRLF) # head request only - -# check file permissions -is file world readable? -def check_perms(resource): - stmode = os.stat(resource).st_mode - return(getattr(stat, 'S_IROTH') & stmode) > 0 - -# Puts together the HTML for the POST form return -def POST(form): - form = unquote(form) - form = form.replace("+", " ").split("&") - contents = "" - if len(form) == 0: - return contents - for x in form: - x = x.split("=") - contents = contents + "<tr>\n<td>" + x[0] + "</td>\n<td>" + x[1] + "</td>\n</tr>\n" - table = "<table>" + contents + "</table>" - ret = "<!DOCTYPE html>\n<html>\n<head>\n<meta charset='utf-8'>\n<link rel='stylesheet' href='style.css'>\n<title>Test</title>\n</head>\n<body>\n<h3>\nFollowing Form Data Submitted Successfully:</h3><br>\n{}\n</body>\n</html>".format(table) - return ret -#For Content Type -def getType(type): - if type == "html": - return "text/html" - elif type == "css": - return "text/css" - elif type == "js": - return "text/javascript" - elif type == "mp3": - return "audio/mpeg" - elif type == "jpg" or type == "jpeg": - return "image/jpeg" - elif type == "png": - return "image/png" - else: - raise TypeError - -def getContents(type, file, contents): - if type =="POST": - return b"".join( - [OK.encode(), "{}".format(CRLF).encode(), POST(contents).encode(), "{}{}".format(CRLF, CRLF).encode()]) - returnValue = "".encode() - try: - if file.split("?")[0] == "redirect": - contents = file.split("?")[1].split("=")[-1] - return "HTTP/1.1 307 TEMPORARY REDIRECT{}Connection: close{}Location:{}{}{}".format(CRLF, CRLF, "https://youtube.com/results?search_query=" + contents, CRLF, CRLF).encode() - if not check_perms(file): - raise PermissionError - content = open(file, 'rb') - except FileNotFoundError: - returnValue = NOT_FOUND.encode() - with open("404.html", "rb") as fof: - returnValue = b"".join( - [returnValue, fof.read(), "{}{}".format(CRLF, CRLF).encode()]) - except PermissionError: - returnValue = FORBIDDEN.encode() - with open("403.html", "rb") as forb: - returnValue = b"".join( - [returnValue, forb.read(), "{}{}".format(CRLF, CRLF).encode()]) - else: - returnValue = OK.encode() - if type == "HEAD": - returnValue = b"".join( - [returnValue, "{}{}".format(CRLF, CRLF).encode()]) - elif type == "GET": - ext = getType(file.split(".")[1]) - returnValue = b"".join( - [returnValue, "Content Type: {}".format(ext).encode(), "{}{}".format(CRLF, CRLF).encode()]) - returnValue = b"".join( - [returnValue, content.read(), "{}{}".format(CRLF, CRLF).encode()]) - else: - returnValue= METHOD_NOT_ALLOWED.encode() - content.close() - return returnValue - -def client_recv(client_sock, client_addr): - print('talking to {}'.format(client_addr)) - data = client_sock.recv(BUFSIZE) - data = data.decode('utf-8').strip("\r") - print(data) - data = data.split("\n") - request = data[0].split(" ") - if len(request) > 1: - want = getContents(request[0], request[1][1:], data[-1]) - client_sock.send(want) - client_sock.shutdown(1) - client_sock.close() - - print('connection closed.') - - -class EchoServer: - def __init__(self, host, port): - print("Server") - print('listening on port {}'.format(port)) - self.host = host - self.port = port - - self.setup_socket() - - self.accept() - - self.sock.shutdown() - self.sock.close() - - def setup_socket(self): - self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - self.sock.bind((self.host, self.port)) - self.sock.listen(128) - - def accept(self): - while True: - (client, address) = self.sock.accept() - th = Thread(target=client_recv, args=(client, address)) - th.start() - -def parse_args(): - parser = ArgumentParser() - parser.add_argument('--host', type=str, default='localhost', - help='specify a host to operate on (default: localhost)') - parser.add_argument('-p', '--port', type=int, default=9001, - help='specify a port to operate on (default: 9001)') - args = parser.parse_args() - return (args.host, args.port) - - -if __name__ == '__main__': - (host, port) = parse_args() - EchoServer(host, port) - |