radio95/RadioPlayer
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RadioPlayer/modules/web.py
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kuba b6781414e1 ping?
2026-05-09 22:01:20 +02:00

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import multiprocessing, os
from queue import Empty
import json
import threading, uuid, time
import asyncio
import websockets
from websockets import ServerConnection, Request, Response, Headers
import mimetypes
import shutil
def get_content_type(filename: str) -> str:
mime_type, _ = mimetypes.guess_type(filename, False)
if mime_type: return mime_type
return "application/octet-stream"
from modules import InterModuleCommunication
from . import Track, PlayerModule, Path, BaseIMCModule
MAIN_PATH_DIR = Path("/home/user/mixes")
async def ws_handler(websocket: ServerConnection, shared_data: dict, imc_q: multiprocessing.Queue, ws_q: multiprocessing.Queue):
await websocket.send(json.dumps({"event": "time", "data": time.monotonic()}))
try:
initial = {
"track": json.loads(shared_data.get("track", "{}")),
"dirs": {"files": [i.name for i in list(MAIN_PATH_DIR.iterdir()) if i.is_file()], "dirs": [i.name for i in list(MAIN_PATH_DIR.iterdir()) if i.is_dir()], "base": str(MAIN_PATH_DIR)},
}
except Exception: initial = {"track": {}, "dirs": {}}
await websocket.send(json.dumps({"event": "state", "data": initial, "time": time.monotonic()}))
await websocket.send(json.dumps({"event": "playlist", "data": json.loads(shared_data.get("playlist", "[]")), "time": time.monotonic()}))
await websocket.send(json.dumps({"event": "rds", "data": json.loads(shared_data.get("rds", "{}")), "time": time.monotonic()}))
async for raw in websocket:
try: msg: dict = json.loads(raw)
except Exception:
await websocket.send(json.dumps({"error": "invalid json", "time": time.monotonic()}))
continue
async def get_imc(name, data):
key = str(uuid.uuid4())
imc_q.put({"name": name, "data": data, "key": key})
start = time.monotonic()
while time.monotonic() - start < 1:
if key in shared_data: return shared_data.pop(key)
await asyncio.sleep(0.1)
return None
action = msg.get("action")
if action == "skip":
imc_q.put({"name": "procman", "data": {"op": 2}})
await websocket.send(json.dumps({"event": "skip", "time": time.monotonic()}))
elif action == "add_to_toplay":
songs = msg.get("songs")
at_top = msg.get("top", False)
if not isinstance(songs, list): await websocket.send(json.dumps({"error": "songs must be a list"}))
else:
imc_q.put({"name": "activemod", "data": {"action": "add_to_toplay", "songs": songs, "top": at_top}})
result = await get_imc("activemod", {"action": "get_toplay"})
if result is not None:
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"data": result, "event": "toplay"})
elif action == "get_toplay":
result = await get_imc("activemod", {"action": "get_toplay"})
if result is None: await websocket.send(json.dumps({"error": "timeout", "code": 504, "time": time.monotonic()}))
else: await websocket.send(json.dumps({"data": result, "event": "toplay", "time": time.monotonic()}))
elif action == "clear_toplay":
result = await get_imc("activemod", {"action": "clear_toplay"})
if result is None: await websocket.send(json.dumps({"error": "timeout", "code": 504, "time": time.monotonic()}))
else:
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"data": result, "event": "toplay"})
elif action == "skipc" or action == "skipi":
result = await get_imc("activemod", msg)
if result is None: await websocket.send(json.dumps({"error": "timeout", "code": 504, "time": time.monotonic()}))
else:
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"data": result, "event": action})
elif action == "jingle":
result = await get_imc("jingle", msg.get("top", False))
if result is None: await websocket.send(json.dumps({"error": "timeout", "code": 504, "time": time.monotonic()}))
else:
await websocket.send(json.dumps(result))
result = await get_imc("activemod", {"action": "get_toplay"})
if result is not None:
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"data": result, "event": "toplay"})
elif action == "request_dir":
what: str = msg.get("what", "")
try:
dir = Path(MAIN_PATH_DIR, what).resolve()
payload = {"files": [i.name for i in list(dir.iterdir()) if i.is_file()], "base": str(dir), "dir": dir.name}
except Exception: payload = {}
await websocket.send(json.dumps({"event": "request_dir", "data": payload, "time": time.monotonic()}))
elif action == "fsdb_add":
name: str | None = msg.get("name")
try:
if not name: raise Exception("name not defined")
path = Path(MAIN_PATH_DIR, ".playlist", msg.get("playlist", ""), name)
path.touch(exist_ok=True)
await websocket.send(json.dumps({"event": "fsdb_add", "ok": True, "time": time.monotonic()}))
except Exception as e: await websocket.send(json.dumps({"event": "fsdb_add", "error": str(e), "time": time.monotonic()}))
elif action == "fsdb_add_dir":
name: str | None = msg.get("name")
try:
if not name: raise Exception("name not defined")
path = Path(MAIN_PATH_DIR, ".playlist", msg.get("playlist", ""), name)
path.mkdir(parents=True, exist_ok=True)
await websocket.send(json.dumps({"event": "fsdb_add_dir", "ok_dir": True, "time": time.monotonic()}))
except Exception as e: await websocket.send(json.dumps({"event": "fsdb_add_dir", "error": str(e), "time": time.monotonic()}))
elif action == "fsdb_remove":
name: str | None = msg.get("name")
try:
if not name: raise Exception("name not defined")
path = Path(MAIN_PATH_DIR, ".playlist", msg.get("playlist", ""), name)
if path.is_dir(): shutil.rmtree(path)
else: path.unlink(missing_ok=True)
await websocket.send(json.dumps({"event": "fsdb_remove", "ok": True, "time": time.monotonic()}))
except Exception as e: await websocket.send(json.dumps({"event": "fsdb_remove", "error": str(e), "time": time.monotonic()}))
elif action == "fsdb_list":
try:
p = Path(MAIN_PATH_DIR, ".playlist", msg.get("playlist", ""))
payload = {
"files": [i.name for i in p.iterdir() if i.is_file()],
"dirs": [i.name for i in p.iterdir() if i.is_dir()]
}
await websocket.send(json.dumps({"event": "fsdb_list", "data": payload, "time": time.monotonic()}))
except Exception as e: await websocket.send(json.dumps({"event": "fsdb_list", "data": {}, "error": str(e), "time": time.monotonic()}))
else: await websocket.send(json.dumps({"event": "error", "error": "unknown action", "time": time.monotonic()}))
async def broadcast_worker(ws_q: multiprocessing.Queue, clients: set):
loop = asyncio.get_event_loop()
while True:
msg: dict = await loop.run_in_executor(None, ws_q.get)
if msg is None: break
msg["time"] = time.monotonic()
payload = json.dumps(msg)
if clients:
coros = []
for ws in list(clients): coros.append(_safe_send(ws, payload, clients, ws_q))
await asyncio.gather(*coros)
async def _safe_send(ws, payload: str, clients: set, ws_q: multiprocessing.Queue):
try: await ws.send(payload)
except Exception:
try:
clients.discard(ws)
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"event": "users", "data": len(clients)})
except Exception: pass
def websocket_server_process(shared_data: dict, imc_q: multiprocessing.Queue, ws_q: multiprocessing.Queue):
async def runner():
clients = set()
async def handler_wrapper(websocket: ServerConnection):
clients.add(websocket)
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"event": "users", "data": len(clients)})
try: await ws_handler(websocket, shared_data, imc_q, ws_q)
finally:
await websocket.close(1001, "")
clients.discard(websocket)
await asyncio.get_event_loop().run_in_executor(None, ws_q.put, {"event": "users", "data": len(clients)})
async def process_request(websocket: ServerConnection, request: Request):
if request.path == "/ws":
if not "upgrade" in request.headers.get("Connection", "").lower():
return Response(
426,
"Upgrade Required",
Headers([("Connection", "Upgrade"), ("Upgrade", "websocket")]),
b"WebSocket upgrade required\n"
)
return None
else:
if request.path == "/" and (file := Path(__file__, "..", "web", "index.html").resolve()).exists():
data = file.read_bytes()
return Response(
200,
"OK",
Headers([("Content-Type", "text/html; charset=utf-8"), ("Content-Length", f"{len(data)}")]),
data
)
elif (file := Path(__file__, "..", "web", request.path.removeprefix("/").strip()).resolve()).exists():
data = file.read_bytes()
return Response(
200,
"OK",
Headers([("Content-Type", get_content_type(file.name)), ("Content-Length", f"{len(data)}")]),
data
)
else:
data = b"Not Found\n"
return Response(
404,
"Not Found",
Headers([("Content-Length", f"{len(data)}")]),
data
)
server = await websockets.serve(handler_wrapper, "0.0.0.0", 3001, server_header="RadioPlayer ws plugin", process_request=process_request)
broadcaster = asyncio.create_task(broadcast_worker(ws_q, clients))
await broadcaster
await server.wait_closed()
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
try: loop.run_until_complete(runner())
except (KeyboardInterrupt, SystemExit): pass
finally: loop.close()
class Module(PlayerModule):
def __init__(self):
self.manager = multiprocessing.Manager()
self.data = self.manager.dict()
self.imc_q = multiprocessing.Queue()
self.ws_q = multiprocessing.Queue()
self.data["playlist"] = "[]"
self.data["track"] = "{}"
self.data["progress"] = "{}"
self.data["rds"] = "{}"
self.ipc_thread_running = True
self.ipc_thread = threading.Thread(target=self._ipc_worker, daemon=True)
self.ipc_thread.start()
self.ws_process = multiprocessing.Process(target=websocket_server_process, args=(self.data, self.imc_q, self.ws_q), daemon=False)
self.ws_process.start()
if os.name == "posix":
# We have to manage the process ourselves. Linux sends signals to everyone in the process group, meaning a CTRL+C would not kill the main one, but this one would die
try: os.setpgid(self.ws_process.pid, self.ws_process.pid)
except Exception: pass
def _ipc_worker(self):
while self.ipc_thread_running:
try:
message: dict | None = self.imc_q.get(timeout=0.5)
if message is None: break
out = self._imc.send(self, message["name"], message["data"])
if key := message.get("key", None): self.data[key] = out
except Empty: continue
except Exception: pass
def on_new_playlist(self, playlist: list[Track], global_args: dict[str, str]) -> None:
api_data = []
for track in playlist:
api_data.append({
"path": str(track.path),
"fade_out": track.fade_out,
"fade_in": track.fade_in,
"official": track.official,
"args": track.args,
"offset": track.offset,
"focus_time_offset": track.focus_time_offset
})
output_data = {"playlist": api_data, "global_args": global_args}
self.data["playlist"] = json.dumps(output_data)
try: self.ws_q.put({"event": "playlist", "data": output_data})
except Exception: pass
def on_new_track(self, index: int, track: Track, next_track: Track | None) -> None:
track_data = {"path": str(track.path), "fade_out": track.fade_out, "fade_in": track.fade_in, "official": track.official, "args": track.args, "offset": track.offset, "focus_time_offset": track.focus_time_offset}
if next_track: next_track_data = {"path": str(next_track.path), "fade_out": next_track.fade_out, "fade_in": next_track.fade_in, "official": next_track.official, "args": next_track.args, "offset": next_track.offset, "focus_time_offset": next_track.focus_time_offset}
else: next_track_data = None
payload = {"index": index, "track": track_data, "next_track": next_track_data}
self.data["track"] = json.dumps(payload)
try: self.ws_q.put({"event": "new_track", "data": payload})
except Exception: pass
def progress(self, index: int, track: Track, elapsed: float, total: float, real_total: float) -> None:
track_data = {"path": str(track.path), "fade_out": track.fade_out, "fade_in": track.fade_in, "official": track.official, "args": track.args, "offset": track.offset, "focus_time_offset": track.focus_time_offset}
payload = {"index": index, "track": track_data, "elapsed": elapsed, "total": total, "real_total": real_total}
self.data["progress"] = json.dumps(payload)
try: self.ws_q.put({"event": "progress", "data": payload})
except Exception: pass
def imc_data(self, source: BaseIMCModule, source_name: str | None, data: object, broadcast: bool) -> object:
wsdata = {"event": "imc", "data": {"name": source_name, "data": data, "broadcast": broadcast}}
if source_name == "rds":
self.data[source_name] = json.dumps(data)
wsdata = {"event": "rds", "data": data}
try: self.ws_q.put(wsdata)
except Exception: pass
def imc(self, imc: InterModuleCommunication) -> None:
self._imc = imc
imc.register(self, "web")
def shutdown(self):
self.ipc_thread_running = False
try: self.imc_q.put(None)
except: pass
try: self.ws_q.put(None)
except: pass
self.ipc_thread.join(timeout=1)
self.ws_process.join(timeout=1)
self.imc_q.close()
self.ws_q.close()
if self.ws_process.is_alive():
self.ws_process.terminate()
self.ws_process.join(timeout=1)
if self.ws_process.is_alive():
self.ws_process.kill()
self.ws_process.join(timeout=1)
self.imc_q.join_thread()
self.ws_q.join_thread()
module = Module()
# This is free and unencumbered software released into the public domain.
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
# For more information, please refer to <https://unlicense.org>
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