Updated .gitignore

Updated client.py
Deleted preview.png
Deleted server.py
Added server/server.py

server/server.py

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+from email.policy import HTTP
+from typing import Any, Coroutine
+from sanic import Sanic, Request, response 
+from sanic.response import HTTPResponse
+from cryptography.fernet import Fernet
+from sanic.server.websockets.impl import WebsocketImplProtocol
+
+import rsa
+
+app = Sanic("app")
+app.config.OAS = False
+
+actual_messages = []
+users = {}
+key = Fernet.generate_key()
+
+
+@app.route('/talk', methods=["GET", "POST"])
+async def talking(request: Request) -> HTTPResponse:
+    actual_messages.append(request.form["text"][0])
+    return response.json({"status": "ok"})
+
+
+@app.route('/update', methods=["GET", "POST"])
+async def talking(request: Request) -> HTTPResponse:
+    return response.json({"status": actual_messages, "users_in_chat": list(users.keys())})
+
+
+@app.route('/get_key', methods=['GET', 'POST'])
+async def get_key(request: Request) -> HTTPResponse:
+    
+    pubkey = rsa.PublicKey.load_pkcs1(request.form['pubkey'][0])
+    data = rsa.encrypt(key, pubkey)
+    
+    if request.ip not in users:
+        users[request.form['username'][0]] = key
+    
+    return response.raw(data)