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1
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import errno |
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2
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import sys |
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3
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import uuid |
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4
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5
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HEADER_LENGTH = 10 |
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6
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7
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8
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class Client: |
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9
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10
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def __init__(self, client_socket): |
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11
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self.name = f"client {uuid.uuid4()}".encode("utf-8") |
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12
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self.socket = client_socket |
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13
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14
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username_header = f"{len(self.name) : <{HEADER_LENGTH}}".encode("utf-8") |
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15
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self.socket.send(username_header + self.name) |
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16
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17
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self.send_message = '' |
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18
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19
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def send(self): |
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20
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message = self.send_message.encode("utf-8") |
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21
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message_header = f"{len(message) :< {HEADER_LENGTH}}".encode("utf-8") |
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22
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self.socket.send(message_header + message) |
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23
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self.send_message = '' |
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24
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25
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def retrieve_next_message(self, new_messages): |
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26
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username_header = self.socket.recv(HEADER_LENGTH) |
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27
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if not len(username_header): |
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28
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print("Connection closed by the server") |
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29
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sys.exit() |
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30
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31
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username_length = int(username_header.decode("utf-8").strip()) |
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32
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username = self.socket.recv(username_length).decode("utf-8") |
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33
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34
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message_header = self.socket.recv(HEADER_LENGTH) |
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35
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message_length = int(message_header.decode("utf-8").strip()) |
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36
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message = self.socket.recv(message_length).decode("utf-8") |
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37
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38
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new_messages.append({'author': username, 'content': message}) |
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39
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40
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def fetch_new_messages(self): |
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41
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if len(self.send_message): |
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42
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self.send() |
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43
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44
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new_messages = [] |
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45
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46
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try: |
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47
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while True: |
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48
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self.retrieve_next_message(new_messages) |
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49
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50
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except IOError as e: |
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51
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if e.errno not in [errno.EAGAIN, errno.EWOULDBLOCK]: |
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52
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print("reading error", str(e)) |
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53
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sys.exit() |
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54
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55
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return new_messages |
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56
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57
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except Exception as e: |
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58
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print("general error", str(e)) |
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59
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sys.exit() |
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60
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Sigmanificient /
PyTchat
