Fix renderer typing, preserve message text, and harden crypto key handling

Fix abstract renderer signatures and add small stubs so type checkers can
see expected attributes (e.g. username, _decrypt). This removes several
mypy false-positives that were caused by mixin/ABC mismatches.
Preserve message text containing ':' by using split(':', 1) in both
DefaultClientRenderer and RichClientRenderer.
Normalize renderer APIs: print_chat(...) now takes the response mapping
and returns None (matches runtime behavior).
Make RSA symmetric-key request more robust: read r.content instead of a
fixed-size r.raw.read(999), avoiding truncated key material.
Improve _connect_ws exception handling in client to ensure a valid
Exception is re-raised if connection attempts fail.
Correct server/service typing: memory_msgs is now typed as
list[Message] and we null-check incoming payload text before creating a
new Message.
Replace manual package list in setup.py with setuptools.find_packages()
so packaging uses valid Python package names.
Installed types-requests in the project venv so mypy no longer flags the
requests import.
Verification: ran python -m compileall and mypy cmd_chat — no issues
remain.
Notes:

Wire format still uses Python literal evaluation in some places (existing
behavior); switching to JSON for client/server payloads is recommended as a
follow-up for robustness and security.

.history/cmd_chat/client/client_20251105191919.py

@@ -0,0 +1,162 @@
+import ast
+import time
+import threading
+from typing import Optional
+
+from websocket import create_connection, WebSocketConnectionClosedException
+
+from cmd_chat.client.core.crypto import RSAService
+from cmd_chat.client.core.default_renderer import DefaultClientRenderer
+from cmd_chat.client.core.rich_renderer import RichClientRenderer
+
+from cmd_chat.client.config import RENDER_TIME
+
+
+class Client(RSAService, RichClientRenderer):
+
+    def __init__(
+        self,
+        server: str,
+        port: int,
+        username: str,
+        password: Optional[str] = None
+    ):
+        super().__init__()
+        self.server = server
+        self.port = port
+        self.username = username
+        self.password = password or ""
+        self.base_url = f"http://{self.server}:{self.port}"
+        self.ws_url = f"ws://{self.server}:{self.port}"
+        self.close_response = str({
+            "action": "close",
+            "username": self.username
+        })
+        self.__stop_threads = False
+
+    def _ws_full(self, path: str) -> str:
+        if self.password:
+            return f"{self.ws_url}{path}?password={self.password}"
+        return f"{self.ws_url}{path}"
+
+    def _connect_ws(self, path: str, retries: int = 5, backoff: float = 0.5):
+        last_exc: Exception = ConnectionError("Failed to connect")
+        for attempt in range(retries):
+            try:
+                return create_connection(self._ws_full(path))
+            except Exception as exc:
+                last_exc = exc
+                time.sleep(backoff * (2 ** attempt))
+        print(f"Can't connect to {path}: {last_exc}")
+        raise last_exc
+
+    def send_info(self):
+        ws = self._connect_ws("/talk")
+        try:
+            while not self.__stop_threads:
+                try:
+                    user_input = input("You're message: ")
+                    if user_input == "q":
+                        self.__stop_threads = True
+                        try:
+                            if ws:
+                                ws.send(self.close_response)
+                                ws.close()
+                        except Exception:
+                            pass
+                        break
+                    message = f'{self.username}: {user_input}'
+                    socket_message = str({
+                        "text": self._encrypt(message),
+                        "username": self.username
+                    })
+                    ws.send(socket_message)
+                except (WebSocketConnectionClosedException, ConnectionResetError, ConnectionAbortedError, OSError):
+                    try:
+                        if ws:
+                            try:
+                                ws.close()
+                            except Exception:
+                                pass
+                        ws = self._connect_ws("/talk")
+                        continue
+                    except Exception:
+                        print("Can't establish channel")
+                        self.__stop_threads = True
+                        break
+                except KeyboardInterrupt:
+                    self.__stop_threads = True
+                    try:
+                        ws.send(self.close_response)
+                        ws.close()
+                    except Exception:
+                        pass
+                    break
+        finally:
+            try:
+                ws.close()
+            except Exception:
+                pass
+
+    def update_info(self):
+        ws = self._connect_ws("/update")
+        last_try = None
+        try:
+            while not self.__stop_threads:
+                try:
+                    time.sleep(RENDER_TIME)
+                    raw = ws.recv()
+                    if isinstance(raw, bytes):
+                        raw = raw.decode("utf-8")
+                    response = ast.literal_eval(raw)
+                    if last_try == response:
+                        continue
+                    last_try = response
+                    self.clear_console()
+                    if len(last_try["messages"]) > 0:
+                        self.print_chat(response=last_try)
+                except (WebSocketConnectionClosedException, ConnectionResetError, ConnectionAbortedError, OSError):
+                    try:
+                        if ws:
+                            try:
+                                ws.close()
+                            except Exception:
+                                pass
+                        ws = self._connect_ws("/update")
+                        continue
+                    except Exception:
+                        print("Connection lost: can't establish update channel")
+                        self.__stop_threads = True
+                        break
+                except KeyboardInterrupt:
+                    self.__stop_threads = True
+                    try:
+                        ws.send(self.close_response)
+                        ws.close()
+                    except Exception:
+                        pass
+                    break
+        finally:
+            try:
+                ws.close()
+            except Exception:
+                pass
+
+    def _validate_keys(self) -> None:
+        self._request_key(
+            url=f"{self.base_url}/get_key",
+            username=self.username,
+            password=self.password
+        )
+        self._remove_keys()
+
+    def run(self):
+        self._validate_keys()
+        threads = [
+            threading.Thread(target=self.send_info, daemon=True),
+            threading.Thread(target=self.update_info, daemon=True)
+        ]
+        for th in threads:
+            th.start()
+        for th in threads:
+            th.join()

.history/cmd_chat/client/client_20251105191921.py

@@ -0,0 +1,162 @@
+import ast
+import time
+import threading
+from typing import Optional
+
+from websocket import create_connection, WebSocketConnectionClosedException
+
+from cmd_chat.client.core.crypto import RSAService
+from cmd_chat.client.core.default_renderer import DefaultClientRenderer
+from cmd_chat.client.core.rich_renderer import RichClientRenderer
+
+from cmd_chat.client.config import RENDER_TIME
+
+
+class Client(RSAService, RichClientRenderer):
+
+    def __init__(
+        self,
+        server: str,
+        port: int,
+        username: str,
+        password: Optional[str] = None
+    ):
+        super().__init__()
+        self.server = server
+        self.port = port
+        self.username = username
+        self.password = password or ""
+        self.base_url = f"http://{self.server}:{self.port}"
+        self.ws_url = f"ws://{self.server}:{self.port}"
+        self.close_response = str({
+            "action": "close",
+            "username": self.username
+        })
+        self.__stop_threads = False
+
+    def _ws_full(self, path: str) -> str:
+        if self.password:
+            return f"{self.ws_url}{path}?password={self.password}"
+        return f"{self.ws_url}{path}"
+
+    def _connect_ws(self, path: str, retries: int = 5, backoff: float = 0.5):
+        last_exc: Exception = ConnectionError("Failed to connect")
+        for attempt in range(retries):
+            try:
+                return create_connection(self._ws_full(path))
+            except Exception as exc:
+                last_exc = exc
+                time.sleep(backoff * (2 ** attempt))
+        print(f"Can't connect to {path}: {last_exc}")
+        raise last_exc
+
+    def send_info(self):
+        ws = self._connect_ws("/talk")
+        try:
+            while not self.__stop_threads:
+                try:
+                    user_input = input("You're message: ")
+                    if user_input == "q":
+                        self.__stop_threads = True
+                        try:
+                            if ws:
+                                ws.send(self.close_response)
+                                ws.close()
+                        except Exception:
+                            pass
+                        break
+                    message = f'{self.username}: {user_input}'
+                    socket_message = str({
+                        "text": self._encrypt(message),
+                        "username": self.username
+                    })
+                    ws.send(socket_message)
+                except (WebSocketConnectionClosedException, ConnectionResetError, ConnectionAbortedError, OSError):
+                    try:
+                        if ws:
+                            try:
+                                ws.close()
+                            except Exception:
+                                pass
+                        ws = self._connect_ws("/talk")
+                        continue
+                    except Exception:
+                        print("Can't establish channel")
+                        self.__stop_threads = True
+                        break
+                except KeyboardInterrupt:
+                    self.__stop_threads = True
+                    try:
+                        ws.send(self.close_response)
+                        ws.close()
+                    except Exception:
+                        pass
+                    break
+        finally:
+            try:
+                ws.close()
+            except Exception:
+                pass
+
+    def update_info(self):
+        ws = self._connect_ws("/update")
+        last_try = None
+        try:
+            while not self.__stop_threads:
+                try:
+                    time.sleep(RENDER_TIME)
+                    raw = ws.recv()
+                    if isinstance(raw, bytes):
+                        raw = raw.decode("utf-8")
+                    response = ast.literal_eval(raw)
+                    if last_try == response:
+                        continue
+                    last_try = response
+                    self.clear_console()
+                    if len(last_try["messages"]) > 0:
+                        self.print_chat(response=last_try)
+                except (WebSocketConnectionClosedException, ConnectionResetError, ConnectionAbortedError, OSError):
+                    try:
+                        if ws:
+                            try:
+                                ws.close()
+                            except Exception:
+                                pass
+                        ws = self._connect_ws("/update")
+                        continue
+                    except Exception:
+                        print("Connection lost: can't establish update channel")
+                        self.__stop_threads = True
+                        break
+                except KeyboardInterrupt:
+                    self.__stop_threads = True
+                    try:
+                        ws.send(self.close_response)
+                        ws.close()
+                    except Exception:
+                        pass
+                    break
+        finally:
+            try:
+                ws.close()
+            except Exception:
+                pass
+
+    def _validate_keys(self) -> None:
+        self._request_key(
+            url=f"{self.base_url}/get_key",
+            username=self.username,
+            password=self.password
+        )
+        self._remove_keys()
+
+    def run(self):
+        self._validate_keys()
+        threads = [
+            threading.Thread(target=self.send_info, daemon=True),
+            threading.Thread(target=self.update_info, daemon=True)
+        ]
+        for th in threads:
+            th.start()
+        for th in threads:
+            th.join()

.history/cmd_chat/client/core/abs/abs_crypto_20251105190705.py

@@ -0,0 +1,27 @@
+from abc import ABC, abstractmethod
+
+class CryptoService(ABC):
+
+    @abstractmethod
+    def _encrypt(self, message: str) -> str:
+        raise NotImplementedError("Need to implement encrypt method")
+
+    @abstractmethod
+    def _decrypt(self, message: str) -> str:
+        raise NotImplementedError("Need to implement decrypt method")
+
+    @abstractmethod
+    def _request_key(self, url: str, username: str, password: str | None = None):
+        raise NotImplementedError("Need to implement request key method")
+
+    @abstractmethod
+    def _generate_keys(self):
+        raise NotImplementedError("Need to implement generate keys method")
+
+    @abstractmethod
+    def _get_generated_keys(self) -> tuple:
+        raise NotImplementedError("Need to implement get generated keys method")
+
+    @abstractmethod
+    def _remove_keys(self):
+        raise NotImplementedError("Need to implement remove keys method")

.history/cmd_chat/client/core/abs/abs_crypto_20251105190714.py

@@ -0,0 +1,27 @@
+from abc import ABC, abstractmethod
+
+class CryptoService(ABC):
+
+    @abstractmethod
+    def _encrypt(self, message: str) -> str:
+        raise NotImplementedError("Need to implement encrypt method")
+
+    @abstractmethod
+    def _decrypt(self, message: str) -> str:
+        raise NotImplementedError("Need to implement decrypt method")
+
+    @abstractmethod
+    def _request_key(self, url: str, username: str, password: str | None = None):
+        raise NotImplementedError("Need to implement request key method")
+
+    @abstractmethod
+    def _generate_keys(self):
+        raise NotImplementedError("Need to implement generate keys method")
+
+    @abstractmethod
+    def _get_generated_keys(self) -> tuple:
+        raise NotImplementedError("Need to implement get generated keys method")
+
+    @abstractmethod
+    def _remove_keys(self):
+        raise NotImplementedError("Need to implement remove keys method")

.history/cmd_chat/client/core/abs/abs_renderer_20251105190654.py

@@ -0,0 +1,26 @@
+from abc import ABC, abstractmethod
+
+
+class ClientRenderer(ABC):
+
+    @abstractmethod
+    def print_message(self, message: str) -> str:
+        raise NotImplementedError("Need to implement print_message")
+
+    @abstractmethod
+    def clear_console(self) -> None:
+        """Clear the client console (platform-specific)."""
+        raise NotImplementedError("Need to implement clear_console")
+
+    @abstractmethod
+    def print_ip(self, ip: str) -> str:
+        raise NotImplementedError("Need to implement print_ip")
+
+    @abstractmethod
+    def print_username(self, username: str) -> str:
+        raise NotImplementedError("Need to implement print_username")
+
+    @abstractmethod
+    def print_chat(self, response) -> None:
+        """Render chat payload (response is expected to be a mapping with 'messages' and 'users_in_chat')."""
+        raise NotImplementedError("Need to implement print_chat")

.history/cmd_chat/client/core/abs/abs_renderer_20251105190714.py

@@ -0,0 +1,26 @@
+from abc import ABC, abstractmethod
+
+
+class ClientRenderer(ABC):
+
+    @abstractmethod
+    def print_message(self, message: str) -> str:
+        raise NotImplementedError("Need to implement print_message")
+
+    @abstractmethod
+    def clear_console(self) -> None:
+        """Clear the client console (platform-specific)."""
+        raise NotImplementedError("Need to implement clear_console")
+
+    @abstractmethod
+    def print_ip(self, ip: str) -> str:
+        raise NotImplementedError("Need to implement print_ip")
+
+    @abstractmethod
+    def print_username(self, username: str) -> str:
+        raise NotImplementedError("Need to implement print_username")
+
+    @abstractmethod
+    def print_chat(self, response) -> None:
+        """Render chat payload (response is expected to be a mapping with 'messages' and 'users_in_chat')."""
+        raise NotImplementedError("Need to implement print_chat")

.history/cmd_chat/client/core/abs/abs_renderer_20251105191905.py

@@ -0,0 +1,34 @@
+from abc import ABC, abstractmethod
+
+
+class ClientRenderer(ABC):
+    # These attributes are expected to be provided by subclasses
+    # (typically via multiple inheritance with CryptoService)
+    username: str
+    
+    @abstractmethod
+    def _decrypt(self, message: str) -> str:
+        """Decrypt an encrypted message (provided by crypto mixin)."""
+        raise NotImplementedError("Need to implement _decrypt")
+
+    @abstractmethod
+    def print_message(self, message: str) -> str:
+        raise NotImplementedError("Need to implement print_message")
+
+    @abstractmethod
+    def clear_console(self) -> None:
+        """Clear the client console (platform-specific)."""
+        raise NotImplementedError("Need to implement clear_console")
+
+    @abstractmethod
+    def print_ip(self, ip: str) -> str:
+        raise NotImplementedError("Need to implement print_ip")
+
+    @abstractmethod
+    def print_username(self, username: str) -> str:
+        raise NotImplementedError("Need to implement print_username")
+
+    @abstractmethod
+    def print_chat(self, response) -> None:
+        """Render chat payload (response is expected to be a mapping with 'messages' and 'users_in_chat')."""
+        raise NotImplementedError("Need to implement print_chat")

.history/cmd_chat/client/core/abs/abs_renderer_20251105191906.py

@@ -0,0 +1,34 @@
+from abc import ABC, abstractmethod
+
+
+class ClientRenderer(ABC):
+    # These attributes are expected to be provided by subclasses
+    # (typically via multiple inheritance with CryptoService)
+    username: str
+    
+    @abstractmethod
+    def _decrypt(self, message: str) -> str:
+        """Decrypt an encrypted message (provided by crypto mixin)."""
+        raise NotImplementedError("Need to implement _decrypt")
+
+    @abstractmethod
+    def print_message(self, message: str) -> str:
+        raise NotImplementedError("Need to implement print_message")
+
+    @abstractmethod
+    def clear_console(self) -> None:
+        """Clear the client console (platform-specific)."""
+        raise NotImplementedError("Need to implement clear_console")
+
+    @abstractmethod
+    def print_ip(self, ip: str) -> str:
+        raise NotImplementedError("Need to implement print_ip")
+
+    @abstractmethod
+    def print_username(self, username: str) -> str:
+        raise NotImplementedError("Need to implement print_username")
+
+    @abstractmethod
+    def print_chat(self, response) -> None:
+        """Render chat payload (response is expected to be a mapping with 'messages' and 'users_in_chat')."""
+        raise NotImplementedError("Need to implement print_chat")

.history/cmd_chat/client/core/crypto_20251105190754.py

@@ -0,0 +1,44 @@
+import rsa
+import requests
+from cryptography.fernet import Fernet
+
+from cmd_chat.client.core.abs.abs_crypto import CryptoService
+
+
+class RSAService(CryptoService):
+    def __init__(self):
+        self.public_key = None
+        self.private_key = None
+        self.symmetric_key = None
+        self.fernet = None
+        self._generate_keys()
+
+    def _encrypt(self, message: str) -> str:
+        return self.fernet.encrypt(message.encode()).decode("utf-8")
+
+    def _decrypt(self, message: str) -> str:
+        return self.fernet.decrypt(message.encode()).decode("utf-8")
+
+    def _request_key(self, url: str, username: str, password: str | None = None):
+        pubkey_bytes = self.public_key.save_pkcs1()
+        r = requests.post(
+            url,
+            files={"pubkey": ("public.pem", pubkey_bytes)},
+            data={"username": username, "password": password or ""},
+            stream=True,
+        )
+        r.raise_for_status()
+        # read the full response content (server returns encrypted symmetric key)
+        message = r.content
+        self.symmetric_key = rsa.decrypt(message, self.private_key)
+        self.fernet = Fernet(self.symmetric_key)
+
+    def _generate_keys(self):
+        self.public_key, self.private_key = rsa.newkeys(512)
+
+    def _get_generated_keys(self):
+        return self.private_key, self.public_key
+
+    def _remove_keys(self):
+        self.public_key = None
+        self.private_key = None

.history/cmd_chat/client/core/crypto_20251105190758.py

@@ -0,0 +1,44 @@
+import rsa
+import requests
+from cryptography.fernet import Fernet
+
+from cmd_chat.client.core.abs.abs_crypto import CryptoService
+
+
+class RSAService(CryptoService):
+    def __init__(self):
+        self.public_key = None
+        self.private_key = None
+        self.symmetric_key = None
+        self.fernet = None
+        self._generate_keys()
+
+    def _encrypt(self, message: str) -> str:
+        return self.fernet.encrypt(message.encode()).decode("utf-8")
+
+    def _decrypt(self, message: str) -> str:
+        return self.fernet.decrypt(message.encode()).decode("utf-8")
+
+    def _request_key(self, url: str, username: str, password: str | None = None):
+        pubkey_bytes = self.public_key.save_pkcs1()
+        r = requests.post(
+            url,
+            files={"pubkey": ("public.pem", pubkey_bytes)},
+            data={"username": username, "password": password or ""},
+            stream=True,
+        )
+        r.raise_for_status()
+        # read the full response content (server returns encrypted symmetric key)
+        message = r.content
+        self.symmetric_key = rsa.decrypt(message, self.private_key)
+        self.fernet = Fernet(self.symmetric_key)
+
+    def _generate_keys(self):
+        self.public_key, self.private_key = rsa.newkeys(512)
+
+    def _get_generated_keys(self):
+        return self.private_key, self.public_key
+
+    def _remove_keys(self):
+        self.public_key = None
+        self.private_key = None

.history/cmd_chat/client/core/default_renderer_20251105190717.py

@@ -0,0 +1,61 @@
+import os 
+import platform
+
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import COLORS
+
+from colorama import init
+
+init()
+
+
+class DefaultClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+
+    def print_message(self, message: str) -> str:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' to keep message contents intact
+        message = message.split(":", 1)
+        if message[0] == self.username:
+            return COLORS["my_username_color"] + message[0] + ": " + message[1] + COLORS["text_color"]
+        return message[0] + ": " + message[1] + COLORS["text_color"]
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return f"IP: " + COLORS["ip_color"] + ip + COLORS["text_color"]
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        # Username label + colored username
+        return f"USERNAME: " + COLORS["username_color"] + username + COLORS["text_color"]
+
+    def print_chat(self, response: list[str]) -> str:
+        for i, msg in enumerate(response["messages"]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                for user in response["users_in_chat"]:
+                    print(self.print_ip(user.split(",")[0]))
+                    print(self.print_username(user.split(",")[1]))
+                print("Write 'q' to quit from chat")
+                print(f"\n{self.print_message(actual_message)}")
+            else:
+                print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/default_renderer_20251105190719.py

@@ -0,0 +1,61 @@
+import os 
+import platform
+
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import COLORS
+
+from colorama import init
+
+init()
+
+
+class DefaultClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+
+    def print_message(self, message: str) -> str:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' to keep message contents intact
+        message = message.split(":", 1)
+        if message[0] == self.username:
+            return COLORS["my_username_color"] + message[0] + ": " + message[1] + COLORS["text_color"]
+        return message[0] + ": " + message[1] + COLORS["text_color"]
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return f"IP: " + COLORS["ip_color"] + ip + COLORS["text_color"]
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        # Username label + colored username
+        return f"USERNAME: " + COLORS["username_color"] + username + COLORS["text_color"]
+
+    def print_chat(self, response: list[str]) -> str:
+        for i, msg in enumerate(response["messages"]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                for user in response["users_in_chat"]:
+                    print(self.print_ip(user.split(",")[0]))
+                    print(self.print_username(user.split(",")[1]))
+                print("Write 'q' to quit from chat")
+                print(f"\n{self.print_message(actual_message)}")
+            else:
+                print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/default_renderer_20251105191806.py

@@ -0,0 +1,61 @@
+import os 
+import platform
+
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import COLORS
+
+from colorama import init
+
+init()
+
+
+class DefaultClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+
+    def print_message(self, message: str) -> str:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' to keep message contents intact
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
+            return COLORS["my_username_color"] + parts[0] + ": " + parts[1] + COLORS["text_color"]
+        return parts[0] + ": " + parts[1] + COLORS["text_color"]
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return f"IP: " + COLORS["ip_color"] + ip + COLORS["text_color"]
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        # Username label + colored username
+        return f"USERNAME: " + COLORS["username_color"] + username + COLORS["text_color"]
+
+    def print_chat(self, response: list[str]) -> str:
+        for i, msg in enumerate(response["messages"]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                for user in response["users_in_chat"]:
+                    print(self.print_ip(user.split(",")[0]))
+                    print(self.print_username(user.split(",")[1]))
+                print("Write 'q' to quit from chat")
+                print(f"\n{self.print_message(actual_message)}")
+            else:
+                print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/default_renderer_20251105191832.py

@@ -0,0 +1,61 @@
+import os 
+import platform
+
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import COLORS
+
+from colorama import init
+
+init()
+
+
+class DefaultClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+
+    def print_message(self, message: str) -> str:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' to keep message contents intact
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
+            return COLORS["my_username_color"] + parts[0] + ": " + parts[1] + COLORS["text_color"]
+        return parts[0] + ": " + parts[1] + COLORS["text_color"]
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return f"IP: " + COLORS["ip_color"] + ip + COLORS["text_color"]
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        # Username label + colored username
+        return f"USERNAME: " + COLORS["username_color"] + username + COLORS["text_color"]
+
+    def print_chat(self, response) -> None:
+        for i, msg in enumerate(response["messages"]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                for user in response["users_in_chat"]:
+                    print(self.print_ip(user.split(",")[0]))
+                    print(self.print_username(user.split(",")[1]))
+                print("Write 'q' to quit from chat")
+                print(f"\n{self.print_message(actual_message)}")
+            else:
+                print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/default_renderer_20251105191906.py

@@ -0,0 +1,61 @@
+import os 
+import platform
+
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import COLORS
+
+from colorama import init
+
+init()
+
+
+class DefaultClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+
+    def print_message(self, message: str) -> str:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' to keep message contents intact
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
+            return COLORS["my_username_color"] + parts[0] + ": " + parts[1] + COLORS["text_color"]
+        return parts[0] + ": " + parts[1] + COLORS["text_color"]
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return f"IP: " + COLORS["ip_color"] + ip + COLORS["text_color"]
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        # Username label + colored username
+        return f"USERNAME: " + COLORS["username_color"] + username + COLORS["text_color"]
+
+    def print_chat(self, response) -> None:
+        for i, msg in enumerate(response["messages"]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                for user in response["users_in_chat"]:
+                    print(self.print_ip(user.split(",")[0]))
+                    print(self.print_username(user.split(",")[1]))
+                print("Write 'q' to quit from chat")
+                print(f"\n{self.print_message(actual_message)}")
+            else:
+                print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/rich_renderer_20251105190741.py

@@ -0,0 +1,78 @@
+import os 
+import platform
+
+from rich.text import Text 
+from rich.style import Style
+from rich.console import Console 
+
+from rich.table import Table
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import MESSAGES_TO_SHOW
+
+
+console = Console(width=75)
+
+
+class RichClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+    
+    def print_message(self, message: str) -> Text:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' so message bodies containing ':' are preserved
+        message = message.split(":", 1)
+        if message[0] == self.username:
+            return \
+                Text(text=message[0], style="bold") + \
+                Text(text=": ", style="bold") + \
+                Text(text=message[1], style="underline")
+        return \
+            Text(text=message[0], style="bold") + \
+            Text(text=": ", style="bold") + \
+            Text(text=message[1], style="underline")
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return ip
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        return username
+
+    def print_chat(self, response: list[str]) -> str:
+        self.clear_console()
+        for i, msg in enumerate(response["messages"][-MESSAGES_TO_SHOW:]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                console.print("Users in chat:", justify="left")
+                table = Table(show_header=True, header_style="bold magenta")
+                table.add_column("IP", style="dim", width=12)
+                table.add_column("USERNAME")
+                for user in response["users_in_chat"]:
+                    table.add_row(
+                        self.print_ip(user.split(',')[0]),
+                        self.print_username(user.split(",")[1])
+                    )
+                console.print(table)
+                console.print("Write 'q' to quit from chat", justify="left")
+                console.print(f"\n{self.print_message(actual_message)}")
+            else:
+                console.print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/rich_renderer_20251105190758.py

@@ -0,0 +1,78 @@
+import os 
+import platform
+
+from rich.text import Text 
+from rich.style import Style
+from rich.console import Console 
+
+from rich.table import Table
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import MESSAGES_TO_SHOW
+
+
+console = Console(width=75)
+
+
+class RichClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+    
+    def print_message(self, message: str) -> Text:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' so message bodies containing ':' are preserved
+        message = message.split(":", 1)
+        if message[0] == self.username:
+            return \
+                Text(text=message[0], style="bold") + \
+                Text(text=": ", style="bold") + \
+                Text(text=message[1], style="underline")
+        return \
+            Text(text=message[0], style="bold") + \
+            Text(text=": ", style="bold") + \
+            Text(text=message[1], style="underline")
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return ip
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        return username
+
+    def print_chat(self, response: list[str]) -> str:
+        self.clear_console()
+        for i, msg in enumerate(response["messages"][-MESSAGES_TO_SHOW:]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                console.print("Users in chat:", justify="left")
+                table = Table(show_header=True, header_style="bold magenta")
+                table.add_column("IP", style="dim", width=12)
+                table.add_column("USERNAME")
+                for user in response["users_in_chat"]:
+                    table.add_row(
+                        self.print_ip(user.split(',')[0]),
+                        self.print_username(user.split(",")[1])
+                    )
+                console.print(table)
+                console.print("Write 'q' to quit from chat", justify="left")
+                console.print(f"\n{self.print_message(actual_message)}")
+            else:
+                console.print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/rich_renderer_20251105191843.py

@@ -0,0 +1,78 @@
+import os 
+import platform
+
+from rich.text import Text 
+from rich.style import Style
+from rich.console import Console 
+
+from rich.table import Table
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import MESSAGES_TO_SHOW
+
+
+console = Console(width=75)
+
+
+class RichClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+    
+    def print_message(self, message: str) -> Text:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' so message bodies containing ':' are preserved
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
+            return \
+                Text(text=parts[0], style="bold") + \
+                Text(text=": ", style="bold") + \
+                Text(text=parts[1], style="underline")
+        return \
+            Text(text=parts[0], style="bold") + \
+            Text(text=": ", style="bold") + \
+            Text(text=parts[1], style="underline")
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return ip
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        return username
+
+    def print_chat(self, response: list[str]) -> str:
+        self.clear_console()
+        for i, msg in enumerate(response["messages"][-MESSAGES_TO_SHOW:]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                console.print("Users in chat:", justify="left")
+                table = Table(show_header=True, header_style="bold magenta")
+                table.add_column("IP", style="dim", width=12)
+                table.add_column("USERNAME")
+                for user in response["users_in_chat"]:
+                    table.add_row(
+                        self.print_ip(user.split(',')[0]),
+                        self.print_username(user.split(",")[1])
+                    )
+                console.print(table)
+                console.print("Write 'q' to quit from chat", justify="left")
+                console.print(f"\n{self.print_message(actual_message)}")
+            else:
+                console.print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/rich_renderer_20251105191852.py

@@ -0,0 +1,78 @@
+import os 
+import platform
+
+from rich.text import Text 
+from rich.style import Style
+from rich.console import Console 
+
+from rich.table import Table
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import MESSAGES_TO_SHOW
+
+
+console = Console(width=75)
+
+
+class RichClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+    
+    def print_message(self, message: str) -> Text:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' so message bodies containing ':' are preserved
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
+            return \
+                Text(text=parts[0], style="bold") + \
+                Text(text=": ", style="bold") + \
+                Text(text=parts[1], style="underline")
+        return \
+            Text(text=parts[0], style="bold") + \
+            Text(text=": ", style="bold") + \
+            Text(text=parts[1], style="underline")
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return ip
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        return username
+
+    def print_chat(self, response) -> None:
+        self.clear_console()
+        for i, msg in enumerate(response["messages"][-MESSAGES_TO_SHOW:]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                console.print("Users in chat:", justify="left")
+                table = Table(show_header=True, header_style="bold magenta")
+                table.add_column("IP", style="dim", width=12)
+                table.add_column("USERNAME")
+                for user in response["users_in_chat"]:
+                    table.add_row(
+                        self.print_ip(user.split(',')[0]),
+                        self.print_username(user.split(",")[1])
+                    )
+                console.print(table)
+                console.print("Write 'q' to quit from chat", justify="left")
+                console.print(f"\n{self.print_message(actual_message)}")
+            else:
+                console.print(f"{self.print_message(actual_message)}")

.history/cmd_chat/client/core/rich_renderer_20251105191906.py

@@ -0,0 +1,78 @@
+import os 
+import platform
+
+from rich.text import Text 
+from rich.style import Style
+from rich.console import Console 
+
+from rich.table import Table
+from cmd_chat.client.core.abs.abs_renderer import ClientRenderer
+from cmd_chat.client.config import MESSAGES_TO_SHOW
+
+
+console = Console(width=75)
+
+
+class RichClientRenderer(ClientRenderer):
+
+    def __get_os(self) -> str:
+        """ checking what kind of platform you need
+        """
+        if "Linux" in str(platform.platform()):
+            return "Linux"
+        return "Windows"
+    
+    def print_message(self, message: str) -> Text:
+        """ generating string with message in required format
+        """
+        # split only on the first ':' so message bodies containing ':' are preserved
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
+            return \
+                Text(text=parts[0], style="bold") + \
+                Text(text=": ", style="bold") + \
+                Text(text=parts[1], style="underline")
+        return \
+            Text(text=parts[0], style="bold") + \
+            Text(text=": ", style="bold") + \
+            Text(text=parts[1], style="underline")
+
+    def clear_console(self):
+        # For windows clear command its cls
+        # For linux clear command its clear
+        if self.__get_os() == "Linux":
+            os.system("clear")
+        else:
+            os.system("cls")
+
+    def print_ip(
+        self,
+        ip: str
+    ) -> str:
+        return ip
+    
+    def print_username(
+        self,
+        username: str
+    ) -> str:
+        return username
+
+    def print_chat(self, response) -> None:
+        self.clear_console()
+        for i, msg in enumerate(response["messages"][-MESSAGES_TO_SHOW:]):
+            actual_message = self._decrypt(msg)
+            if i == 0:
+                console.print("Users in chat:", justify="left")
+                table = Table(show_header=True, header_style="bold magenta")
+                table.add_column("IP", style="dim", width=12)
+                table.add_column("USERNAME")
+                for user in response["users_in_chat"]:
+                    table.add_row(
+                        self.print_ip(user.split(',')[0]),
+                        self.print_username(user.split(",")[1])
+                    )
+                console.print(table)
+                console.print("Write 'q' to quit from chat", justify="left")
+                console.print(f"\n{self.print_message(actual_message)}")
+            else:
+                console.print(f"{self.print_message(actual_message)}")

.history/cmd_chat/server/server_20251105191755.py

@@ -0,0 +1,113 @@
+import asyncio
+import rsa
+from cryptography.fernet import Fernet
+from functools import partial
+from sanic.worker.loader import AppLoader
+from sanic.response import HTTPResponse
+from sanic import Sanic, Request, response, Websocket
+from cmd_chat.server.models import Message
+from cmd_chat.server.services import (
+    _get_bytes_and_serialize,
+    _check_ws_for_close_status,
+    _generate_new_message,
+    _generate_update_payload
+)
+
+app = Sanic("app")
+app.config.OAS = False
+
+MESSAGES_MEMORY_DB: list[Message] = []
+USERS: dict[str, str] = {}
+PUBLIC_KEY = Fernet.generate_key()
+
+
+def _check_password(request: Request, expected: str | None) -> bool:
+    if not expected:
+        return True
+    q = request.args.get("password")
+    f = request.form.get("password") if hasattr(request, "form") else None
+    return (q or f) == expected
+
+def _get_str_arg(request: Request, name: str) -> str | None:
+    return request.form.get(name) or request.args.get(name)
+
+def attach_endpoints(app: Sanic):
+    @app.websocket("/talk")
+    async def talk_ws_view(request: Request, ws: Websocket) -> HTTPResponse:
+        if not _check_password(request, app.ctx.ADMIN_PASSWORD):
+            await ws.close(code=4001, reason="unauthorized")
+            return
+        while True:
+            serialized_message: dict = await _get_bytes_and_serialize(ws)
+            await _check_ws_for_close_status(serialized_message, ws)
+            text = serialized_message.get("text")
+            if text is None:
+                continue
+            new_message = await _generate_new_message(text)
+            MESSAGES_MEMORY_DB.append(new_message)
+            await ws.send(str({"status": "ok"}))
+            await asyncio.sleep(0.2)
+
+    @app.websocket("/update")
+    async def update_ws_view(request: Request, ws: Websocket) -> HTTPResponse:
+        if not _check_password(request, app.ctx.ADMIN_PASSWORD):
+            await ws.close(code=4001, reason="unauthorized")
+            return
+        while True:
+            payload = await _generate_update_payload(MESSAGES_MEMORY_DB, USERS)
+            await ws.send(payload.encode())
+            await asyncio.sleep(0.2)
+
+    @app.route('/get_key', methods=['GET', 'POST'])
+    async def get_key_view(request: Request) -> HTTPResponse:
+        if not _check_password(request, app.ctx.ADMIN_PASSWORD):
+            return response.text("unauthorized", status=401)
+
+        pubkey_bytes: bytes | None = None
+
+        if "pubkey" in request.files and request.files.get("pubkey"):
+            f = request.files.get("pubkey")
+            if isinstance(f, list):
+                f = f[0]
+            pubkey_bytes = f.body
+
+        if pubkey_bytes is None:
+            raw = request.form.get("pubkey")
+            if raw:
+                pubkey_bytes = raw if isinstance(raw, bytes) else str(raw).encode()
+
+        if pubkey_bytes is None:
+            raw = request.args.get("pubkey")
+            if raw:
+                pubkey_bytes = raw.encode()
+
+        if not pubkey_bytes:
+            return response.text("bad request: pubkey is required", status=400)
+
+        try:
+            public_key = rsa.PublicKey.load_pkcs1(pubkey_bytes)
+        except Exception as e:
+            return response.text(f"bad pubkey: {e}", status=400)
+
+        encrypted_data = rsa.encrypt(PUBLIC_KEY, public_key)
+
+        username = _get_str_arg(request, "username") or "unknown"
+        user_key = f"{request.ip}, {username}"
+        if user_key not in USERS:
+            USERS[user_key] = PUBLIC_KEY
+
+        return response.raw(encrypted_data)
+
+
+def create_app(app_name: str, admin_password: str | None) -> Sanic:
+    app = Sanic(app_name)
+    app.ctx.ADMIN_PASSWORD = admin_password
+    attach_endpoints(app)
+    return app
+
+
+def run_server(host: str, port: int, dev: bool = False, admin_password: str | None = None) -> None:
+    loader = AppLoader(factory=partial(create_app, "CMD_SERVER", admin_password))
+    app = loader.load()
+    app.prepare(host=host, port=port, dev=dev)
+    Sanic.serve(primary=app, app_loader=loader)

.history/cmd_chat/server/server_20251105191907.py

@@ -0,0 +1,113 @@
+import asyncio
+import rsa
+from cryptography.fernet import Fernet
+from functools import partial
+from sanic.worker.loader import AppLoader
+from sanic.response import HTTPResponse
+from sanic import Sanic, Request, response, Websocket
+from cmd_chat.server.models import Message
+from cmd_chat.server.services import (
+    _get_bytes_and_serialize,
+    _check_ws_for_close_status,
+    _generate_new_message,
+    _generate_update_payload
+)
+
+app = Sanic("app")
+app.config.OAS = False
+
+MESSAGES_MEMORY_DB: list[Message] = []
+USERS: dict[str, str] = {}
+PUBLIC_KEY = Fernet.generate_key()
+
+
+def _check_password(request: Request, expected: str | None) -> bool:
+    if not expected:
+        return True
+    q = request.args.get("password")
+    f = request.form.get("password") if hasattr(request, "form") else None
+    return (q or f) == expected
+
+def _get_str_arg(request: Request, name: str) -> str | None:
+    return request.form.get(name) or request.args.get(name)
+
+def attach_endpoints(app: Sanic):
+    @app.websocket("/talk")
+    async def talk_ws_view(request: Request, ws: Websocket) -> HTTPResponse:
+        if not _check_password(request, app.ctx.ADMIN_PASSWORD):
+            await ws.close(code=4001, reason="unauthorized")
+            return
+        while True:
+            serialized_message: dict = await _get_bytes_and_serialize(ws)
+            await _check_ws_for_close_status(serialized_message, ws)
+            text = serialized_message.get("text")
+            if text is None:
+                continue
+            new_message = await _generate_new_message(text)
+            MESSAGES_MEMORY_DB.append(new_message)
+            await ws.send(str({"status": "ok"}))
+            await asyncio.sleep(0.2)
+
+    @app.websocket("/update")
+    async def update_ws_view(request: Request, ws: Websocket) -> HTTPResponse:
+        if not _check_password(request, app.ctx.ADMIN_PASSWORD):
+            await ws.close(code=4001, reason="unauthorized")
+            return
+        while True:
+            payload = await _generate_update_payload(MESSAGES_MEMORY_DB, USERS)
+            await ws.send(payload.encode())
+            await asyncio.sleep(0.2)
+
+    @app.route('/get_key', methods=['GET', 'POST'])
+    async def get_key_view(request: Request) -> HTTPResponse:
+        if not _check_password(request, app.ctx.ADMIN_PASSWORD):
+            return response.text("unauthorized", status=401)
+
+        pubkey_bytes: bytes | None = None
+
+        if "pubkey" in request.files and request.files.get("pubkey"):
+            f = request.files.get("pubkey")
+            if isinstance(f, list):
+                f = f[0]
+            pubkey_bytes = f.body
+
+        if pubkey_bytes is None:
+            raw = request.form.get("pubkey")
+            if raw:
+                pubkey_bytes = raw if isinstance(raw, bytes) else str(raw).encode()
+
+        if pubkey_bytes is None:
+            raw = request.args.get("pubkey")
+            if raw:
+                pubkey_bytes = raw.encode()
+
+        if not pubkey_bytes:
+            return response.text("bad request: pubkey is required", status=400)
+
+        try:
+            public_key = rsa.PublicKey.load_pkcs1(pubkey_bytes)
+        except Exception as e:
+            return response.text(f"bad pubkey: {e}", status=400)
+
+        encrypted_data = rsa.encrypt(PUBLIC_KEY, public_key)
+
+        username = _get_str_arg(request, "username") or "unknown"
+        user_key = f"{request.ip}, {username}"
+        if user_key not in USERS:
+            USERS[user_key] = PUBLIC_KEY
+
+        return response.raw(encrypted_data)
+
+
+def create_app(app_name: str, admin_password: str | None) -> Sanic:
+    app = Sanic(app_name)
+    app.ctx.ADMIN_PASSWORD = admin_password
+    attach_endpoints(app)
+    return app
+
+
+def run_server(host: str, port: int, dev: bool = False, admin_password: str | None = None) -> None:
+    loader = AppLoader(factory=partial(create_app, "CMD_SERVER", admin_password))
+    app = loader.load()
+    app.prepare(host=host, port=port, dev=dev)
+    Sanic.serve(primary=app, app_loader=loader)

.history/cmd_chat/server/services_20251105191745.py

@@ -0,0 +1,36 @@
+import ast
+from sanic import Websocket
+from cmd_chat.server.models import Message
+
+
+async def _get_bytes_and_serialize(
+    ws: Websocket
+) -> dict:
+    return ast.literal_eval(await ws.recv())
+
+
+async def _check_ws_for_close_status(
+    response: dict,
+    ws: Websocket
+) -> None:
+    if "action" in response.keys():
+        if response["action"] == "close":
+            await ws.close()
+
+
+async def _generate_new_message(
+    message: str
+) -> Message:
+    return Message(message = message)
+
+
+async def _generate_update_payload(
+    memory_msgs: list[Message],
+    users_structure: dict
+) -> str:
+    return str({
+        "messages": [i.message for i in memory_msgs], 
+        "users_in_chat": list(users_structure.keys())
+    })
+
+

.history/cmd_chat/server/services_20251105191746.py

@@ -0,0 +1,36 @@
+import ast
+from sanic import Websocket
+from cmd_chat.server.models import Message
+
+
+async def _get_bytes_and_serialize(
+    ws: Websocket
+) -> dict:
+    return ast.literal_eval(await ws.recv())
+
+
+async def _check_ws_for_close_status(
+    response: dict,
+    ws: Websocket
+) -> None:
+    if "action" in response.keys():
+        if response["action"] == "close":
+            await ws.close()
+
+
+async def _generate_new_message(
+    message: str
+) -> Message:
+    return Message(message = message)
+
+
+async def _generate_update_payload(
+    memory_msgs: list[Message],
+    users_structure: dict
+) -> str:
+    return str({
+        "messages": [i.message for i in memory_msgs], 
+        "users_in_chat": list(users_structure.keys())
+    })
+
+

.history/setup_20251105190626.py

@@ -0,0 +1,33 @@
+import setuptools
+
+with open("README.md", "r", encoding="utf-8") as fh:
+    description = fh.read()
+
+setuptools.setup(
+    name="secured_console_chat",
+    version="1.1.22",
+    author="dinosaurtirex",
+    author_email="sneakybeaky18@gmail.com",
+    # Use find_packages to correctly discover package names
+    packages=setuptools.find_packages(exclude=("tests", "docs")),
+    description="Secured console chat with RSA & Fernet",
+    long_description=description,
+    long_description_content_type="text/markdown",
+    url="https://github.com/dinosaurtirex/cmd-chat",
+    license='MIT',
+    python_requires='>=3.10',
+    entry_points={
+        'console_scripts': [
+            'cmd_chat = cmd_chat:main'
+        ]
+    },
+    install_requires=[
+        "sanic",
+        "requests",
+        "rsa",
+        "cryptography",
+        "colorama",
+        "pydantic",
+        "websocket-client"
+    ]
+)

.history/setup_20251105190632.py

@@ -0,0 +1,33 @@
+import setuptools
+
+with open("README.md", "r", encoding="utf-8") as fh:
+    description = fh.read()
+
+setuptools.setup(
+    name="secured_console_chat",
+    version="1.1.22",
+    author="dinosaurtirex",
+    author_email="sneakybeaky18@gmail.com",
+    # Use find_packages to correctly discover package names
+    packages=setuptools.find_packages(exclude=("tests", "docs")),
+    description="Secured console chat with RSA & Fernet",
+    long_description=description,
+    long_description_content_type="text/markdown",
+    url="https://github.com/dinosaurtirex/cmd-chat",
+    license='MIT',
+    python_requires='>=3.10',
+    entry_points={
+        'console_scripts': [
+            'cmd_chat = cmd_chat:main'
+        ]
+    },
+    install_requires=[
+        "sanic",
+        "requests",
+        "rsa",
+        "cryptography",
+        "colorama",
+        "pydantic",
+        "websocket-client"
+    ]
+)

cmd_chat/client/client.py

@@ -40,7 +40,7 @@ class Client(RSAService, RichClientRenderer):
         return f"{self.ws_url}{path}"
 
     def _connect_ws(self, path: str, retries: int = 5, backoff: float = 0.5):
-        last_exc = None
+        last_exc: Exception = ConnectionError("Failed to connect")
         for attempt in range(retries):
             try:
                 return create_connection(self._ws_full(path))

cmd_chat/client/core/abs/abs_crypto.py

@@ -19,7 +19,7 @@ class CryptoService(ABC):
         raise NotImplementedError("Need to implement generate keys method")
 
     @abstractmethod
-    def _get_generated_keys(self) -> list[str]:
+    def _get_generated_keys(self) -> tuple:
         raise NotImplementedError("Need to implement get generated keys method")
 
     @abstractmethod

cmd_chat/client/core/abs/abs_renderer.py

@@ -2,23 +2,33 @@ from abc import ABC, abstractmethod
 
 
 class ClientRenderer(ABC):
+    # These attributes are expected to be provided by subclasses
+    # (typically via multiple inheritance with CryptoService)
+    username: str
+    
+    @abstractmethod
+    def _decrypt(self, message: str) -> str:
+        """Decrypt an encrypted message (provided by crypto mixin)."""
+        raise NotImplementedError("Need to implement _decrypt")
 
     @abstractmethod
     def print_message(self, message: str) -> str:
         raise NotImplementedError("Need to implement print_message")
 
     @abstractmethod
-    def clear_console(self, message: str) -> str:
+    def clear_console(self) -> None:
+        """Clear the client console (platform-specific)."""
         raise NotImplementedError("Need to implement clear_console")
 
     @abstractmethod
-    def print_ip(self, url: str, username: str):
+    def print_ip(self, ip: str) -> str:
         raise NotImplementedError("Need to implement print_ip")
 
     @abstractmethod
-    def print_username(self):
+    def print_username(self, username: str) -> str:
         raise NotImplementedError("Need to implement print_username")
 
     @abstractmethod
-    def print_chat(self) -> list[str]:
+    def print_chat(self, response) -> None:
+        """Render chat payload (response is expected to be a mapping with 'messages' and 'users_in_chat')."""
         raise NotImplementedError("Need to implement print_chat")

cmd_chat/client/core/crypto.py

@@ -28,7 +28,8 @@ class RSAService(CryptoService):
             stream=True,
         )
         r.raise_for_status()
-        message = r.raw.read(999)
+        # read the full response content (server returns encrypted symmetric key)
+        message = r.content
         self.symmetric_key = rsa.decrypt(message, self.private_key)
         self.fernet = Fernet(self.symmetric_key)
 

cmd_chat/client/core/default_renderer.py

@@ -21,10 +21,11 @@ class DefaultClientRenderer(ClientRenderer):
     def print_message(self, message: str) -> str:
         """ generating string with message in required format
         """
-        message = message.split(":")
+        # split only on the first ':' to keep message contents intact
-        if message[0] == self.username:
+        parts = message.split(":", 1)
-            return COLORS["my_username_color"] + message[0] + ": " + message[1] + COLORS["text_color"]
+        if parts[0] == self.username:
-        return message[0] + ": " + message[1] + COLORS["text_color"]
+            return COLORS["my_username_color"] + parts[0] + ": " + parts[1] + COLORS["text_color"]
+        return parts[0] + ": " + parts[1] + COLORS["text_color"]
 
     def clear_console(self):
         # For windows clear command its cls
@@ -44,9 +45,10 @@ class DefaultClientRenderer(ClientRenderer):
         self,
         username: str
     ) -> str:
-        return f"USERNAME: " + COLORS["ip_color"] + username + COLORS["username_color"]
+        # Username label + colored username
+        return f"USERNAME: " + COLORS["username_color"] + username + COLORS["text_color"]
 
-    def print_chat(self, response: list[str]) -> str:
+    def print_chat(self, response) -> None:
         for i, msg in enumerate(response["messages"]):
             actual_message = self._decrypt(msg)
             if i == 0:

cmd_chat/client/core/rich_renderer.py

@@ -25,16 +25,17 @@ class RichClientRenderer(ClientRenderer):
     def print_message(self, message: str) -> Text:
         """ generating string with message in required format
         """
-        message = message.split(":")
+        # split only on the first ':' so message bodies containing ':' are preserved
-        if message[0] == self.username:
+        parts = message.split(":", 1)
+        if parts[0] == self.username:
             return \
-                Text(text=message[0], style="bold") + \
+                Text(text=parts[0], style="bold") + \
                 Text(text=": ", style="bold") + \
-                Text(text=message[1], style="underline")
+                Text(text=parts[1], style="underline")
         return \
-            Text(text=message[0], style="bold") + \
+            Text(text=parts[0], style="bold") + \
             Text(text=": ", style="bold") + \
-            Text(text=message[1], style="underline")
+            Text(text=parts[1], style="underline")
 
     def clear_console(self):
         # For windows clear command its cls
@@ -56,7 +57,7 @@ class RichClientRenderer(ClientRenderer):
     ) -> str:
         return username
 
-    def print_chat(self, response: list[str]) -> str:
+    def print_chat(self, response) -> None:
         self.clear_console()
         for i, msg in enumerate(response["messages"][-MESSAGES_TO_SHOW:]):
             actual_message = self._decrypt(msg)

cmd_chat/server/server.py

@@ -40,7 +40,10 @@ def attach_endpoints(app: Sanic):
         while True:
             serialized_message: dict = await _get_bytes_and_serialize(ws)
             await _check_ws_for_close_status(serialized_message, ws)
-            new_message = await _generate_new_message(serialized_message.get("text"))
+            text = serialized_message.get("text")
+            if text is None:
+                continue
+            new_message = await _generate_new_message(text)
             MESSAGES_MEMORY_DB.append(new_message)
             await ws.send(str({"status": "ok"}))
             await asyncio.sleep(0.2)

cmd_chat/server/services.py

@@ -25,7 +25,7 @@ async def _generate_new_message(
 
 
 async def _generate_update_payload(
-    memory_msgs: list[str],
+    memory_msgs: list[Message],
     users_structure: dict
 ) -> str:
     return str({

setup.py

@@ -8,13 +8,8 @@ setuptools.setup(
     version="1.1.22",
     author="dinosaurtirex",
     author_email="sneakybeaky18@gmail.com",
-    packages=[
+    # Use find_packages to correctly discover package names
-        "cmd_chat", 
+    packages=setuptools.find_packages(exclude=("tests", "docs")),
-        "cmd_chat/client",
-        "cmd_chat/client/core",
-        "cmd_chat/client/core/abs",
-        "cmd_chat/server"
-    ],
     description="Secured console chat with RSA & Fernet",
     long_description=description,
     long_description_content_type="text/markdown",