Created
September 14, 2017 15:15
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FirpBurp with Caesar
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| import socket | |
| def read_caesar(r): | |
| key = 'abcdefghijklmnopqrstuvwxyz' | |
| result = '' | |
| for l in r: | |
| try: | |
| i = (key.index(l) - 3) % 26 | |
| result += key[i] | |
| except ValueError: | |
| result += l | |
| return result | |
| HOST, PORT = "localhost", 1337 | |
| sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) | |
| for i in range(1, 101): | |
| sock.sendto(str(i) + "\n", (HOST, PORT)) | |
| response = sock.recv(1024) | |
| print '[*] Got ' + response | |
| if len(response) > 2: | |
| response = read_caesar(response) | |
| print '[*] Sent: ' + str(i) + ', Result: ' + str(response) + '\n' |
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| import SocketServer | |
| class FirpBurpUDPHandler(SocketServer.BaseRequestHandler): | |
| def handle(self): | |
| data = self.request[0].strip() | |
| socket = self.request[1] | |
| do_cipher = int(0) | |
| print "{} wrote:".format(self.client_address[0]) | |
| if int(data) % 15 == 0: | |
| r = "FirpBurp" | |
| do_cipher = int(1) | |
| elif int(data) % 3 == 0: | |
| r = "Firp" | |
| do_cipher = int(1) | |
| elif int(data) % 5 == 0: | |
| r = "Burp" | |
| do_cipher = int(1) | |
| else: # leave room for refactoring | |
| r = str(data) | |
| cipher = r | |
| print str(r) | |
| if do_cipher == 1: | |
| cipher = self.hail_caesar(r) | |
| socket.sendto(str(cipher), self.client_address) | |
| def hail_caesar(self, r): | |
| key = 'abcdefghijklmnopqrstuvwxyz' | |
| result = '' | |
| for l in r.lower(): | |
| try: | |
| j = (key.index(l) + 3) % 26 | |
| result += key[j] | |
| except ValueError: | |
| result += l | |
| return result.lower() | |
| if __name__ == "__main__": | |
| HOST, PORT = "localhost", 1337 | |
| server = SocketServer.UDPServer((HOST, PORT), FirpBurpUDPHandler) | |
| # Ctrl-C to stop | |
| server.serve_forever() |
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