refactored nodes and implemented API function

This commit is contained in:
Logan Cusano
2025-05-24 14:56:33 -04:00
parent 67925c120a
commit 81267e4c76
3 changed files with 152 additions and 101 deletions

119
app/routers/nodes.py Normal file
View File

@@ -0,0 +1,119 @@
import json
from quart import Blueprint, jsonify, request, abort, current_app
from werkzeug.exceptions import HTTPException
from enum import Enum
nodes_bp = Blueprint('nodes', __name__)
class NodeCommands(str, Enum):
JOIN = "join_server"
LEAVE = "leave_server"
async def register_client(websocket, client_id):
"""Registers a new client connection."""
current_app.active_clients[client_id] = websocket
print(f"Client {client_id} connected.")
async def unregister_client(client_id):
"""Unregisters a disconnected client."""
if client_id in current_app.active_clients:
del current_app.active_clients[client_id]
print(f"Client {client_id} disconnected.")
async def send_command_to_client(client_id, command_name, *args):
"""Sends a command to a specific client."""
if client_id in current_app.active_clients:
websocket = current_app.active_clients[client_id]
message = json.dumps({"type": "command", "name": command_name, "args": args})
try:
await websocket.send(message)
print(f"Sent command '{command_name}' to client {client_id}")
except websockets.exceptions.ConnectionClosedError:
print(f"Failed to send to client {client_id}: connection closed.")
await unregister_client(client_id)
else:
print(f"Client {client_id} not found.")
async def send_command_to_all_clients(command_name, *args):
"""Sends a command to all connected clients."""
message = json.dumps({"type": "command", "name": command_name, "args": args})
# Use a list of items to avoid issues if clients disconnect during iteration
clients_to_send = list(current_app.active_clients.items())
for client_id, websocket in clients_to_send:
try:
await websocket.send(message)
print(f"Sent command '{command_name}' to client {client_id}")
except websockets.exceptions.ConnectionClosedError:
print(f"Failed to send to client {client_id}: connection closed.")
await unregister_client(client_id)
@nodes_bp.route("/", methods=['GET'])
async def get_nodes():
"""API endpoint to list currently connected client IDs."""
return jsonify(list(current_app.active_clients.keys()))
@nodes_bp.route("/join", methods=['POST'])
async def join():
"""
Send a join command to the specific system specified
"""
data = await request.get_json()
client_id = data.get("client_id")
system_id = data.get("system_id")
guild_id = data.get("guild_id")
channel_id = data.get("channel_id")
# Check to make sure the client is online
if client_id not in current_app.active_clients:
return jsonify({"error": f"Client {client_id} not found, it might be offline"}), 404
try:
args = [system_id, guild_id, channel_id]
if not isinstance(args, list):
return jsonify({"error": "'args' must be a list"}), 400
# Send the command asynchronously
await send_command_to_client(client_id, NodeCommands.JOIN, *args)
return jsonify({"status": "command sent", "client_id": client_id, "command": NodeCommands.JOIN}), 200
except Exception as e:
return jsonify({"error": f"Failed to send command: {e}"}), 500
@nodes_bp.route("/leave", methods=['POST'])
async def leave():
"""
Send a join command to the specific system specified
"""
data = await request.get_json()
client_id = data.get("client_id")
guild_id = data.get("guild_id")
# Check to make sure the client is online
if client_id not in current_app.active_clients:
return jsonify({"error": f"Client {client_id} not found, it might be offline"}), 404
try:
args = [guild_id]
if not isinstance(args, list):
return jsonify({"error": "'args' must be a list"}), 400
# Send the command asynchronously
await send_command_to_client(client_id, NodeCommands.LEAVE, *args)
return jsonify({"status": "command sent", "client_id": client_id, "command": NodeCommands.LEAVE}), 200
except Exception as e:
return jsonify({"error": f"Failed to send command: {e}"}), 500

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@@ -1,6 +1,7 @@
from quart import Blueprint, jsonify, request, abort
from internal.db_wrappers import System, SystemDbController
from internal.db_wrappers import SystemDbController
from werkzeug.exceptions import HTTPException
from internal.types import System
systems_bp = Blueprint('systems', __name__)
db_h = SystemDbController()
@@ -257,3 +258,29 @@ async def dismiss_client_from_system_route(system_id: str):
except Exception as e:
print(f"Error during system de-assignment: {e}")
abort(500, f"Internal server error: {e}")
@systems_bp.route('/search', methods=['GET'])
async def search_systems_route():
"""
API endpoint to search for systems based on query parameters.
Allows searching by 'name', 'frequency_khz', or any other field present in the System model.
Example: /systems/search?name=MySystem&frequency_khz=1000
"""
print("\n--- Handling GET /systems/search ---")
try:
query_params = dict(request.args)
systems = await db_h.find_systems(query_params)
if systems:
# If systems are found, return them as a list of dictionaries
return jsonify([system.to_dict() for system in systems]), 200 # 200 OK
else:
# If no systems match the query, return 404 Not Found
return jsonify({"message": "No systems found matching the criteria"}), 404
except HTTPException:
raise
except Exception as e:
print(f"Error searching systems: {e}")
abort(500, f"Internal server error: {e}")

View File

@@ -4,48 +4,12 @@ import json
import uuid
from quart import Quart, jsonify, request
from routers.systems import systems_bp
from routers.nodes import nodes_bp, register_client, unregister_client
# --- WebSocket Server Components ---
# Dictionary to store active clients: {client_id: websocket}
active_clients = {}
async def register_client(websocket, client_id):
"""Registers a new client connection."""
active_clients[client_id] = websocket
print(f"Client {client_id} connected.")
async def unregister_client(client_id):
"""Unregisters a disconnected client."""
if client_id in active_clients:
del active_clients[client_id]
print(f"Client {client_id} disconnected.")
async def send_command_to_client(client_id, command_name, *args):
"""Sends a command to a specific client."""
if client_id in active_clients:
websocket = active_clients[client_id]
message = json.dumps({"type": "command", "name": command_name, "args": args})
try:
await websocket.send(message)
print(f"Sent command '{command_name}' to client {client_id}")
except websockets.exceptions.ConnectionClosedError:
print(f"Failed to send to client {client_id}: connection closed.")
await unregister_client(client_id)
else:
print(f"Client {client_id} not found.")
async def send_command_to_all_clients(command_name, *args):
"""Sends a command to all connected clients."""
message = json.dumps({"type": "command", "name": command_name, "args": args})
# Use a list of items to avoid issues if clients disconnect during iteration
clients_to_send = list(active_clients.items())
for client_id, websocket in clients_to_send:
try:
await websocket.send(message)
print(f"Sent command '{command_name}' to client {client_id}")
except websockets.exceptions.ConnectionClosedError:
print(f"Failed to send to client {client_id}: connection closed.")
await unregister_client(client_id)
async def websocket_server_handler(websocket):
"""Handles incoming WebSocket connections and messages from clients."""
@@ -79,40 +43,15 @@ async def websocket_server_handler(websocket):
if client_id:
await unregister_client(client_id)
# --- Radio Channel Data (Placeholder) ---
# In a real app, this would likely come from a database
channels = {
"channel_1": {
"id": "channel_1",
"name": "Local News Radio",
"frequency_list_khz": ["98500"],
"decode_mode": "P25",
"location": "Cityville",
"tags": [],
"tag_whitelist": [1,2,3],
"avail_on_nodes": ["client-abc123", "client-def456"], # List of client IDs that can tune this channel
"description": "Your source for local news and weather."
},
"channel_2": {
"id": "channel_2",
"name": "Music Mix FM",
"frequency_list_khz": [101300],
"decode_mode": "P25",
"location": "Townsville",
"tags": [],
"tag_whitelist": [6,7,8],
"avail_on_nodes": ["client-def456", "client-ghi789"],
"description": "Playing the hits, all day long."
}
# Add more channels here
}
# --- Quart API Components ---
app = Quart(__name__)
# Store the websocket server instance
websocket_server_instance = None
# Make active_clients accessible via the app instance.
app.active_clients = active_clients
@app.before_serving
async def startup_websocket_server():
"""Starts the WebSocket server when the Quart app starts."""
@@ -139,16 +78,12 @@ async def shutdown_websocket_server():
app.register_blueprint(systems_bp, url_prefix="/systems")
app.register_blueprint(nodes_bp, url_prefix="/nodes")
@app.route('/')
async def index():
return "Welcome to the Radio App Server API!"
@app.route('/clients', methods=['GET'])
async def list_clients():
"""API endpoint to list currently connected client IDs."""
return jsonify(list(active_clients.keys()))
@app.route('/request_token', methods=['POST'])
async def request_token():
"""API endpoint to list currently connected client IDs."""
@@ -157,36 +92,6 @@ async def request_token():
"token": "MTE5NjAwNTM2ODYzNjExMjk3Nw.GuCMXg.24iNNofNNumq46FIj68zMe9RmQgugAgfrvelEA"
})
# --- Example API endpoint to trigger a WebSocket command ---
# This is a simple example. More complex logic might be needed
# to validate commands or arguments before sending.
@app.route('/command/<client_id>/<command_name>', methods=['POST'])
async def api_send_command(client_id, command_name):
"""
API endpoint to send a command to a specific client via WebSocket.
Expects JSON body with 'args': [...]
e.g., POST to /command/client-abc123/print_message with body {"args": ["Hello!"]}
"""
if client_id not in active_clients:
return jsonify({"error": f"Client {client_id} not found"}), 404
# if command_name not in ["join_server", "leave_server", "set_status", "run_task"]: # Basic validation
# return jsonify({"error": f"Unknown command: {command_name}"}), 400
try:
request_data = await request.get_json()
args = request_data.get("args", [])
if not isinstance(args, list):
return jsonify({"error": "'args' must be a list"}), 400
# Send the command asynchronously
await send_command_to_client(client_id, command_name, *args)
return jsonify({"status": "command sent", "client_id": client_id, "command": command_name}), 200
except Exception as e:
return jsonify({"error": f"Failed to send command: {e}"}), 500
# --- Main Execution ---
if __name__ == "__main__":
# Quart's app.run() will start the asyncio event loop and manage it.