chore(release): 0.7.0-dev.1

Reviewed-on: #16

.gitignore

@@ -45,3 +45,6 @@ logs/
 # Sphinx
 docs/_build/
 docs/ref/modules/
+
+# known clients
+config/known_clients.yaml

CHANGELOG.md

@@ -2,6 +2,73 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.7.0-dev.1] - 2026-03-08
+
+### Features
+
+- [`d7b1368`](https://github.com/pufereq/template-repo/commit/d7b136851bafa2c20e1634bd5568f4bac839177f) **client_details.html**: add temporary initial telemetry display
+- [`7e9a9e6`](https://github.com/pufereq/template-repo/commit/7e9a9e6eede6cc926fef64c626434e65984befbc) **backend_server.py**: add `initial_telemetry` support
+- [`6ed03ab`](https://github.com/pufereq/template-repo/commit/6ed03ab74de8e91d13b5f1971a3f4cec890e4fef) **client.py**: add `Client.initial_telemetry` property
+- [`40c08d0`](https://github.com/pufereq/template-repo/commit/40c08d01693973f29f13c133a11fc5f166891a25) **initial_handler.py**: add handler for `TELEMETRY/INTIIAL` msgs
+
+### Build
+
+- [`3d13d24`](https://github.com/pufereq/template-repo/commit/3d13d241168b011c0044eb64db4b0fe70878d748) **uv.lock**: update judas_protocol to 0.9.1
+- [`28b57b6`](https://github.com/pufereq/template-repo/commit/28b57b6964bfcd6ce78f2a77822f7221f6e4f7e5) **uv.lock**: update judas_protocol to 0.9.0
+
+## [0.6.0] - 2026-03-05
+
+### Bug Fixes
+
+- [`fbb75c2`](https://github.com/pufereq/template-repo/commit/fbb75c263c13726d7e1c3fa28fb4e8f1f8cf0a17) **backend_server.py**: fix double-connection handling
+- [`88d3490`](https://github.com/pufereq/template-repo/commit/88d349090e6e3605800656cc3e85779bf4b417c3) **backend_server.py**: fix double disconnect if client.inbound empty
+- [`e308a07`](https://github.com/pufereq/template-repo/commit/e308a07dabcf20d9b080ce12a8928760dcde3057) **backend_server.py**: call `_initialize_handlers()` on init
+- [`ead2224`](https://github.com/pufereq/template-repo/commit/ead22240660ff9f723c36ee35fa5918c33a0c66d) **backend_server.py**: do not disconnect a client if Exception raised on msg handling
+- [`6446fe8`](https://github.com/pufereq/template-repo/commit/6446fe883cea4268992efc9f97cdb493af416576) **backend_server.py**: check if client to disconnect has an open socket
+
+### Features
+
+- [`72d51b4`](https://github.com/pufereq/template-repo/commit/72d51b451fc11ebe2f38d5e50bf263f9f441b03c) **backend_server.py**: add notice to known_clients.yaml
+- [`0e7c948`](https://github.com/pufereq/template-repo/commit/0e7c9486683be4ceb91203109986f0b9fc83eb8b) **config/**: add `config/` directory
+- [`97fc17f`](https://github.com/pufereq/template-repo/commit/97fc17fbb3ed5d681a4f5a0d488b7a2b09ab35df) **hello_handler.py**: remove client from `pending_hello` if recv'd HELLO
+- [`f5b14fc`](https://github.com/pufereq/template-repo/commit/f5b14fc6109e83730c4b13aaecf6f4314c0136a4) **backend_server.py**: add timeout on HELLO
+- [`bf1ad0e`](https://github.com/pufereq/template-repo/commit/bf1ad0ead0e4fc35c20d0d747cca05388b223d35) **ack_handler.py**: add handling for ACKs
+- [`a9bace8`](https://github.com/pufereq/template-repo/commit/a9bace8acaab07e6e5d02155a9966c6381ad107e) **backend_server.py**: add `ACK_TIMEOUT` constant
+- [`c88e39c`](https://github.com/pufereq/template-repo/commit/c88e39c7355b6f8c982198e6e56da2d09d17c61f) **backend_server.py**: track message ACKs and resend if no ACK recv'd within 5 seconds
+- [`dafe418`](https://github.com/pufereq/template-repo/commit/dafe418916485258694949538eda151d7da33695) **backend_server.py**: add warning if received an unknown message (no handler)
+- [`0ed478a`](https://github.com/pufereq/template-repo/commit/0ed478a88efa46f2f28b24371ad68010ecbf88d0) **backend_server.py**: implement message handling
+- [`c952413`](https://github.com/pufereq/template-repo/commit/c952413d912b7a5d2000bc48c11a4d9274533caf) **hello_handler.py**: add HELLO message handler
+- [`882c878`](https://github.com/pufereq/template-repo/commit/882c8780e15ec827fac1854cf7419b71d9a41a4f) **base_handler.py**: add `BaseHandler` class for message handling
+- [`faecc38`](https://github.com/pufereq/template-repo/commit/faecc382610daf890c90074809085560931fd178) **client_status.py**: move `ClientStatus` enum to own module
+
+### Miscellaneous Tasks
+
+- [`61be674`](https://github.com/pufereq/template-repo/commit/61be674258dcce8a5b54efddb7d1d856c6cba9bc) remove `cache/` directory
+- [`f46d271`](https://github.com/pufereq/template-repo/commit/f46d27164b79107abe405b221c9d424add55a723) **.gitignore**: ignore `config/known_clients.yaml` as it's generated automatically
+- [`f13f243`](https://github.com/pufereq/template-repo/commit/f13f243b5b389d84acaa4ab933a234a00c6a981c) **__main__.py**: set logging level for werkzeug to WARNING
+- [`332238b`](https://github.com/pufereq/template-repo/commit/332238b403782a08a8974b9267071f8d0ff5f006) **__init__.py**: correct version
+- [`e54cc47`](https://github.com/pufereq/template-repo/commit/e54cc479b5f6bb3fb887803122fea0c551e27ee2) **handler/__init__.py**: add `AckHandler` to `__all__`
+- [`ee38141`](https://github.com/pufereq/template-repo/commit/ee381414a931ed9d7562410e08c9de5cdc7b94e7) **backend_server.py**: remove redundant HELLO msg handling
+- [`ec58a52`](https://github.com/pufereq/template-repo/commit/ec58a5257a3007a6edd502eb3967d92a9b652358) **handler/__init__.py**: add module init
+- [`d3f68d3`](https://github.com/pufereq/template-repo/commit/d3f68d3baff8b903be125b0da7a88b415cd56bac) **backend/__init__.py**: add `Client` and `ClientStatus` to `__all__`
+- [`bda10a6`](https://github.com/pufereq/template-repo/commit/bda10a6248478e99dfb42d8c605996cafdaf1e6e) **cache/**: add cache/ directory
+
+### Refactor
+
+- [`efbf99f`](https://github.com/pufereq/template-repo/commit/efbf99f356c20fbd48937f1c4e8df0a2d57f0651) **backend_server.py**: if known_clients.yaml not present, call `_save_known_clients()`
+- [`35899d3`](https://github.com/pufereq/template-repo/commit/35899d366823c2878330eb06dc703f2965f61c3f) **backend_server.py**: move `known_clients.yaml` to `config/`
+- [`3eb681e`](https://github.com/pufereq/template-repo/commit/3eb681e233fa151c2476581854c947bdc77b4900) **backend_server.py**: move loading known clients to its own method
+- [`fa2da20`](https://github.com/pufereq/template-repo/commit/fa2da207a9cf3d90cdbfb5977033fee21d449528) **backend_server.py**: refactor calls to Message class constructors after protocol changes
+
+### Styling
+
+- [`62acc4b`](https://github.com/pufereq/template-repo/commit/62acc4b181cd359557909fa94f0cb0e6a4109255) **client.py**: correct property typing
+
+### Build
+
+- [`c64a258`](https://github.com/pufereq/template-repo/commit/c64a2582439e5ef1ab68bb9c588f7c4644bb4e07) **uv.lock**: update judas_protocol to 0.8.0
+- [`f41a777`](https://github.com/pufereq/template-repo/commit/f41a7774ec5cb4997005ac8e31ed7bdc3541a8d6) **uv.lock**: update judas_protocol to 0.7.0
+
 ## [0.5.0] - 2026-02-28
 
 ### Features

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "uv_build"
 
 [project]
 name = "judas_server"
-version = "0.5.0"
+version = "0.7.0-dev.1"
 description = "The backbone of the remote PC fleet management system."
 readme = "README.md"
 authors = []

src/judas_server/__init__.py

@@ -1 +1 @@
-__version__: str = "0.1.0"
+__version__: str = "0.5.0"

src/judas_server/__main__.py

@@ -12,6 +12,8 @@ if __name__ == "__main__":
         format="%(asctime)s : [%(levelname)s] : %(threadName)s : %(name)s :: %(message)s",
     )
 
+    lg.getLogger("werkzeug").setLevel(lg.WARNING)
+
     ladygaga_logger = lg.getLogger(f"{__name__}.LAGA_DYGA")
     ladygaga_logger.info(LADY_GAGA)
 

src/judas_server/backend/backend_server.py

@@ -8,11 +8,15 @@ import threading
 import time
 from typing import TYPE_CHECKING, Any, Final
 
+from judas_protocol.types import TelemetryAction
 import yaml
 from judas_protocol import Category, ControlAction, Message
 
 from judas_server.backend.client import Client, ClientStatus
 from judas_server.backend.handler.hello_handler import HelloHandler
+from judas_server.backend.handler.telemetry.initial_handler import (
+    InitialTelemetryHandler,
+)
 
 if TYPE_CHECKING:
     from typing import Callable
@@ -22,6 +26,7 @@ if TYPE_CHECKING:
 
 class BackendServer:
     ACK_TIMEOUT: Final[float] = 5.0  # seconds
+    HELLO_TIMEOUT: Final[float] = 3.0  # seconds
 
     def __init__(self, host: str = "0.0.0.0", port: int = 3692) -> None:
         """Initialize the backend server.
@@ -48,9 +53,9 @@ class BackendServer:
         )
 
         self.clients: dict[str, Client] = {}
-        self.known_clients: dict[str, dict[str, str | float]] = (
-            self._load_known_clients()
-        )
+
+        self.known_clients: dict[str, dict[str, str | float]] = {}
+        self.known_clients = self._load_known_clients()
 
         self.message_handlers: dict[
             tuple[Category, ActionType], Callable[[Client, Message], None]
@@ -58,6 +63,7 @@ class BackendServer:
         self._initialize_handlers()
 
         self.pending_acks: list[tuple[Client, Message, float]] = []
+        self.pending_hello: dict[Client, float] = {}
 
         self.running: bool = False
 
@@ -65,17 +71,22 @@ class BackendServer:
         """Initialize message handlers."""
 
         hello_handler = HelloHandler(self)
+        initial_telemetry_handler = InitialTelemetryHandler(self)
 
         self.message_handlers[(Category.CONTROL, ControlAction.HELLO)] = (
             hello_handler.handle
         )
 
+        self.message_handlers[
+            (Category.TELEMETRY, TelemetryAction.INITIAL)
+        ] = initial_telemetry_handler.handle
+
     def _load_known_clients(self) -> dict[str, dict[str, str | float]]:
         """Load the list of known clients from a YAML file and validate."""
         known_clients: dict[str, dict[str, str | float]] = {}
 
         try:
-            with open("cache/known_clients.yaml", "r") as f:
+            with open("config/known_clients.yaml", "r") as f:
                 data = yaml.safe_load(f)
 
                 if not isinstance(data, dict):
@@ -106,14 +117,16 @@ class BackendServer:
                 client.last_seen = float(
                     known_clients[client_id].get("last_seen", 0.0)
                 )
+                client.initial_telemetry = known_clients[client_id].get(  # type: ignore
+                    "initial_telemetry", None
+                )
                 self.clients[client_id] = client
 
         except FileNotFoundError:
             self.logger.warning(
                 "known_clients.yaml not found, creating empty known clients list"
             )
-            with open("cache/known_clients.yaml", "w") as f:
-                yaml.safe_dump({"known_clients": {}}, f)
+            self._save_known_clients()
         except Exception as e:
             self.logger.error(f"Error loading known clients: {e}")
             raise
@@ -122,7 +135,12 @@ class BackendServer:
 
     def _save_known_clients(self) -> None:
         """Save the list of known clients to a YAML file."""
-        with open("cache/known_clients.yaml", "w") as f:
+        with open("config/known_clients.yaml", "w") as f:
+            f.write(
+                "# This file is automatically generated by BackendServer.\n"
+                + "# Do not edit manually.\n"
+                + f"# Generated at: {time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())}\n\n"
+            )
             yaml.safe_dump({"known_clients": self.known_clients}, f)
         self.logger.debug("Saved known clients")
 
@@ -196,6 +214,8 @@ class BackendServer:
         events = selectors.EVENT_READ | selectors.EVENT_WRITE
         self.selector.register(conn, events, data=client)
 
+        self.pending_hello[client] = time.time()
+
         self.logger.info(f"[+] Registered client {client}, HELLO pending...")
 
     def _disconnect(self, client: Client) -> None:
@@ -206,7 +226,7 @@ class BackendServer:
         """
         self.logger.info(f"[-] Disconnecting {client}...")
 
-        if client.socket is None:
+        if client.socket is None or client.socket._closed:
             self.logger.warning(
                 f"Client {client} has no socket, nothing to disconnect."
             )
@@ -270,9 +290,6 @@ class BackendServer:
         try:
             if mask & selectors.EVENT_READ:
                 self._receive_inbound(sock, client)
-                if not client.inbound:
-                    self._disconnect(client)
-                    return
 
                 while b"\n" in client.inbound:
                     line, client.inbound = client.inbound.split(b"\n", 1)
@@ -365,6 +382,15 @@ class BackendServer:
                         self.send(client, msg)
                         self.pending_acks.remove((client, msg, timestamp))
 
+                # check pending HELLOs
+                for client, timestamp in list(self.pending_hello.items()):
+                    if time.time() - timestamp > self.HELLO_TIMEOUT:
+                        self.logger.warning(
+                            f"HELLO timeout for {client}, disconnecting..."
+                        )
+                        self._disconnect(client)
+                        del self.pending_hello[client]
+
                 time.sleep(0.001)  # prevent 100% CPU usage
 
         except Exception as e:
@@ -385,4 +411,5 @@ class BackendServer:
             "addr": client.addr,
             "last_seen": client.last_seen,
             "status": client.status,
+            "initial_telemetry": client.initial_telemetry,
         }

src/judas_server/backend/client.py

@@ -6,6 +6,7 @@ from __future__ import annotations
 import logging as lg
 import socket
 import time
+from typing import Any
 
 from judas_server.backend.client_status import ClientStatus
 
@@ -41,6 +42,8 @@ class Client:
         self.inbound: bytes = b""
         self.outbound: bytes = b""
 
+        self.initial_telemetry: dict[str, Any] | None = None
+
     def __str__(self) -> str:
         if self.addr:
             return f"Client({self.id} ({self.addr[0]}:{self.addr[1]}))"

src/judas_server/backend/handler/__init__.py

@@ -1,4 +1,5 @@
 from .base_handler import BaseHandler
 from .hello_handler import HelloHandler
+from .ack_handler import AckHandler
 
-__all__ = ["BaseHandler", "HelloHandler"]
+__all__ = ["BaseHandler", "HelloHandler", "AckHandler"]

src/judas_server/backend/handler/ack_handler.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+
+from typing import TYPE_CHECKING
+
+from .base_handler import BaseHandler
+
+if TYPE_CHECKING:
+    from judas_protocol import Message
+
+    from judas_server.backend import BackendServer, Client
+
+
+class AckHandler(BaseHandler):
+    def __init__(self, backend_server: BackendServer) -> None:
+        super().__init__(backend_server)
+
+    def handle(self, client: Client, message: Message) -> None:
+        pending_acks = self.backend_server.pending_acks
+        if message.id in pending_acks:
+            del pending_acks[message.id]
+            self.logger.debug(
+                f"[*] Received ACK for message {message.id} from {client}."
+            )
+        else:
+            self.logger.warning(
+                f"[!] Received ACK for unknown (or ACK'd) message {message.id} from {client}."
+            )

src/judas_server/backend/handler/hello_handler.py

@@ -44,7 +44,8 @@ class HelloHandler(BaseHandler):
         # check if client already connected, if so disconnect old client and register new one
         if (
             client.id in self.backend_server.clients
-            and self.backend_server.clients[client.id].status == "connected"
+            and self.backend_server.clients[client.id].status
+            == ClientStatus.ONLINE
         ):
             old_client: Client = self.backend_server.clients[client.id]
             self.backend_server.logger.warning(
@@ -58,6 +59,7 @@ class HelloHandler(BaseHandler):
             "last_seen": client.last_seen
         }
 
+        del self.backend_server.pending_hello[client]
         self.backend_server._save_known_clients()
         client.status = ClientStatus.ONLINE
 

src/judas_server/backend/handler/telemetry/initial_handler.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+"""Initial telemetry handler."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from judas_protocol import Message
+
+from judas_server.backend.handler.base_handler import BaseHandler
+
+if TYPE_CHECKING:
+    from judas_server.backend import BackendServer
+    from judas_server.backend.client import Client
+
+
+class InitialTelemetryHandler(BaseHandler):
+    """Handles the initial telemetry message from a client."""
+
+    def __init__(self, backend_server: BackendServer) -> None:
+        """Initialize the handler."""
+        super().__init__(backend_server)
+
+    def handle(self, client: Client, message: Message) -> None:
+        """Handle the initial telemetry message."""
+        self.logger.debug(
+            f"Handling initial telemetry message from {client}..."
+        )
+
+        client.initial_telemetry = message.payload
+        self.backend_server.known_clients[client.id]["initial_telemetry"] = (  # type: ignore
+            message.payload
+        )

src/judas_server/web/templates/client_details.html

@@ -18,6 +18,10 @@
       <strong>Last Seen:</strong>
       <span id="last-seen">{{ client.last_seen }}</span>
     </p>
+    <p>
+      <strong>Initial:</strong>
+      <pre>{{ client.initial_telemetry | tojson(indent=2) }}</pre>
+    </p>
   </body>
 
   <script>

uv.lock

@@ -358,12 +358,12 @@ wheels = [
 
 [[package]]
 name = "judas-protocol"
-version = "0.8.0"
-source = { git = "https://gitea.pufereq.pl/judas/judas_protocol.git#a805ccf38edffadc1b8c8b276e60758c86516cd3" }
+version = "0.9.1"
+source = { git = "https://gitea.pufereq.pl/judas/judas_protocol.git#085c34f232f95313d66db48a7d17bc25c92a35ae" }
 
 [[package]]
 name = "judas-server"
-version = "0.5.0"
+version = "0.7.0.dev1"
 source = { editable = "." }
 dependencies = [
     { name = "flask" },