alexei.dolgolyov
783771489a
Remote Media Player integration for controlling PC media playback from Home Assistant via the Media Server API. Features: - Full media player controls (play, pause, stop, next, previous) - Volume control and mute - Seek support with smooth timeline updates - Real-time updates via WebSocket - Script buttons for PC control (shutdown, restart, lock, etc.) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
408 lines
13 KiB
Python
408 lines
13 KiB
Python
"""API client for communicating with the Media Server."""
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from __future__ import annotations
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import asyncio
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import hashlib
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import logging
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from collections.abc import Callable
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from typing import Any
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import aiohttp
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from aiohttp import ClientError, ClientResponseError
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from .const import (
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API_HEALTH,
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API_STATUS,
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API_PLAY,
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API_PAUSE,
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API_STOP,
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API_NEXT,
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API_PREVIOUS,
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API_VOLUME,
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API_MUTE,
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API_SEEK,
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API_SCRIPTS_LIST,
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API_SCRIPTS_EXECUTE,
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)
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_LOGGER = logging.getLogger(__name__)
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class MediaServerError(Exception):
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"""Base exception for Media Server errors."""
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class MediaServerConnectionError(MediaServerError):
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"""Exception for connection errors."""
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class MediaServerAuthError(MediaServerError):
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"""Exception for authentication errors."""
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class MediaServerClient:
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"""Client for the Media Server REST API."""
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def __init__(
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self,
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host: str,
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port: int,
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token: str,
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session: aiohttp.ClientSession | None = None,
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) -> None:
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"""Initialize the client.
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Args:
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host: Server hostname or IP address
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port: Server port
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token: API authentication token
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session: Optional aiohttp session (will create one if not provided)
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"""
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self._host = host
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self._port = int(port) # Ensure port is an integer
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self._token = token
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self._session = session
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self._own_session = session is None
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self._base_url = f"http://{host}:{self._port}"
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async def _ensure_session(self) -> aiohttp.ClientSession:
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"""Ensure we have an aiohttp session."""
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if self._session is None or self._session.closed:
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self._session = aiohttp.ClientSession()
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self._own_session = True
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return self._session
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async def close(self) -> None:
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"""Close the client session."""
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if self._own_session and self._session and not self._session.closed:
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await self._session.close()
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def _get_headers(self) -> dict[str, str]:
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"""Get headers for API requests."""
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return {
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"Authorization": f"Bearer {self._token}",
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"Content-Type": "application/json",
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}
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async def _request(
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self,
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method: str,
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endpoint: str,
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json_data: dict | None = None,
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auth_required: bool = True,
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) -> dict[str, Any]:
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"""Make an API request.
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Args:
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method: HTTP method (GET, POST, etc.)
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endpoint: API endpoint path
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json_data: Optional JSON body data
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auth_required: Whether to include authentication header
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Returns:
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Response data as dictionary
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Raises:
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MediaServerConnectionError: On connection errors
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MediaServerAuthError: On authentication errors
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MediaServerError: On other errors
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"""
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session = await self._ensure_session()
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url = f"{self._base_url}{endpoint}"
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headers = self._get_headers() if auth_required else {}
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try:
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timeout = aiohttp.ClientTimeout(total=10)
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async with session.request(
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method, url, headers=headers, json=json_data, timeout=timeout
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) as response:
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if response.status == 401:
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raise MediaServerAuthError("Invalid API token")
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if response.status == 403:
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raise MediaServerAuthError("Access forbidden")
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response.raise_for_status()
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return await response.json()
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except aiohttp.ClientConnectorError as err:
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raise MediaServerConnectionError(
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f"Cannot connect to server at {self._base_url}: {err}"
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) from err
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except ClientResponseError as err:
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raise MediaServerError(f"API error: {err.status} {err.message}") from err
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except ClientError as err:
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raise MediaServerConnectionError(f"Connection error: {err}") from err
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async def check_connection(self) -> bool:
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"""Check if the server is reachable and token is valid.
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Returns:
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True if connection is successful
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"""
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try:
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# First check health (no auth)
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await self._request("GET", API_HEALTH, auth_required=False)
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# Then check auth by getting status
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await self._request("GET", API_STATUS)
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return True
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except MediaServerError:
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return False
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async def get_health(self) -> dict[str, Any]:
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"""Get server health status (no authentication required).
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Returns:
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Health status data
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"""
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return await self._request("GET", API_HEALTH, auth_required=False)
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async def get_status(self) -> dict[str, Any]:
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"""Get current media playback status.
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Returns:
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Media status data including state, title, artist, volume, etc.
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"""
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data = await self._request("GET", API_STATUS)
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# Convert relative album_art_url to absolute URL with token and cache-buster
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if data.get("album_art_url") and data["album_art_url"].startswith("/"):
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# Add track info hash to force HA to re-fetch when track changes
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import hashlib
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track_id = f"{data.get('title', '')}-{data.get('artist', '')}"
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track_hash = hashlib.md5(track_id.encode()).hexdigest()[:8]
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data["album_art_url"] = f"{self._base_url}{data['album_art_url']}?token={self._token}&t={track_hash}"
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return data
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async def play(self) -> dict[str, Any]:
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"""Resume or start playback.
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Returns:
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Response data
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"""
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return await self._request("POST", API_PLAY)
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async def pause(self) -> dict[str, Any]:
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"""Pause playback.
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Returns:
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Response data
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"""
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return await self._request("POST", API_PAUSE)
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async def stop(self) -> dict[str, Any]:
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"""Stop playback.
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Returns:
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Response data
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"""
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return await self._request("POST", API_STOP)
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async def next_track(self) -> dict[str, Any]:
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"""Skip to next track.
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Returns:
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Response data
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"""
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return await self._request("POST", API_NEXT)
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async def previous_track(self) -> dict[str, Any]:
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"""Go to previous track.
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Returns:
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Response data
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"""
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return await self._request("POST", API_PREVIOUS)
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async def set_volume(self, volume: int) -> dict[str, Any]:
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"""Set the volume level.
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Args:
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volume: Volume level (0-100)
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Returns:
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Response data
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"""
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return await self._request("POST", API_VOLUME, {"volume": volume})
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async def toggle_mute(self) -> dict[str, Any]:
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"""Toggle mute state.
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Returns:
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Response data with new mute state
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"""
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return await self._request("POST", API_MUTE)
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async def seek(self, position: float) -> dict[str, Any]:
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"""Seek to a position in the current track.
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Args:
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position: Position in seconds
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Returns:
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Response data
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"""
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return await self._request("POST", API_SEEK, {"position": position})
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async def list_scripts(self) -> list[dict[str, Any]]:
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"""List available scripts on the server.
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Returns:
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List of scripts with name, description, and timeout
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"""
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return await self._request("GET", API_SCRIPTS_LIST)
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async def execute_script(
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self, script_name: str, args: list[str] | None = None
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) -> dict[str, Any]:
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"""Execute a script on the server.
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Args:
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script_name: Name of the script to execute
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args: Optional list of arguments to pass to the script
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Returns:
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Execution result with success, exit_code, stdout, stderr
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"""
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endpoint = f"{API_SCRIPTS_EXECUTE}/{script_name}"
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json_data = {"args": args or []}
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return await self._request("POST", endpoint, json_data)
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class MediaServerWebSocket:
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"""WebSocket client for real-time media status updates."""
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def __init__(
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self,
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host: str,
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port: int,
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token: str,
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on_status_update: Callable[[dict[str, Any]], None],
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on_disconnect: Callable[[], None] | None = None,
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) -> None:
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"""Initialize the WebSocket client.
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Args:
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host: Server hostname or IP
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port: Server port
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token: API authentication token
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on_status_update: Callback when status update received
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on_disconnect: Callback when connection lost
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"""
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self._host = host
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self._port = int(port)
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self._token = token
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self._on_status_update = on_status_update
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self._on_disconnect = on_disconnect
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self._ws_url = f"ws://{host}:{self._port}/api/media/ws?token={token}"
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self._session: aiohttp.ClientSession | None = None
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self._ws: aiohttp.ClientWebSocketResponse | None = None
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self._receive_task: asyncio.Task | None = None
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self._running = False
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async def connect(self) -> bool:
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"""Establish WebSocket connection.
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Returns:
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True if connection successful
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"""
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try:
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if self._session is None or self._session.closed:
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self._session = aiohttp.ClientSession()
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self._ws = await self._session.ws_connect(
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self._ws_url,
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heartbeat=30,
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timeout=aiohttp.ClientTimeout(total=10),
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)
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self._running = True
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# Start receive loop
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self._receive_task = asyncio.create_task(self._receive_loop())
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_LOGGER.info("WebSocket connected to %s:%s", self._host, self._port)
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return True
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except Exception as err:
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_LOGGER.warning("WebSocket connection failed: %s", err)
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return False
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async def disconnect(self) -> None:
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"""Close WebSocket connection."""
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self._running = False
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if self._receive_task:
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self._receive_task.cancel()
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try:
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await self._receive_task
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except asyncio.CancelledError:
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pass
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self._receive_task = None
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if self._ws and not self._ws.closed:
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await self._ws.close()
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self._ws = None
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if self._session and not self._session.closed:
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await self._session.close()
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self._session = None
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_LOGGER.debug("WebSocket disconnected")
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async def _receive_loop(self) -> None:
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"""Background loop to receive WebSocket messages."""
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while self._running and self._ws and not self._ws.closed:
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try:
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msg = await self._ws.receive(timeout=60)
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if msg.type == aiohttp.WSMsgType.TEXT:
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data = msg.json()
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msg_type = data.get("type")
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if msg_type in ("status", "status_update"):
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status_data = data.get("data", {})
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# Convert album art URL to absolute
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if (
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status_data.get("album_art_url")
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and status_data["album_art_url"].startswith("/")
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):
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track_id = f"{status_data.get('title', '')}-{status_data.get('artist', '')}"
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track_hash = hashlib.md5(track_id.encode()).hexdigest()[:8]
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status_data["album_art_url"] = (
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f"http://{self._host}:{self._port}"
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f"{status_data['album_art_url']}?token={self._token}&t={track_hash}"
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)
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self._on_status_update(status_data)
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elif msg_type == "pong":
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_LOGGER.debug("Received pong")
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elif msg.type == aiohttp.WSMsgType.CLOSED:
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_LOGGER.warning("WebSocket closed by server")
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break
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elif msg.type == aiohttp.WSMsgType.ERROR:
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_LOGGER.error("WebSocket error: %s", self._ws.exception())
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break
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except asyncio.TimeoutError:
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# Send ping to keep connection alive
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if self._ws and not self._ws.closed:
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try:
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await self._ws.send_json({"type": "ping"})
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except Exception:
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break
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except asyncio.CancelledError:
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break
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except Exception as err:
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_LOGGER.error("WebSocket receive error: %s", err)
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break
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# Connection lost, notify callback
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if self._on_disconnect:
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self._on_disconnect()
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@property
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def is_connected(self) -> bool:
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"""Return True if WebSocket is connected."""
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return self._ws is not None and not self._ws.closed
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