radio95/RadioPlayer
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48c955b527c1222f41c8cd94a1533d2bebe52af7
RadioPlayer/modules/web.py
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kuba 48c955b527 skipc
2026-04-11 15:01:09 +02:00

297 lines
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Python
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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
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):
try:
initial = {
"playlist": json.loads(shared_data.get("playlist", "[]")),
"track": json.loads(shared_data.get("track", "{}")),
"progress": json.loads(shared_data.get("progress", "{}")),
"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 = {"playlist": [], "track": {}, "progress": {}}
await websocket.send(json.dumps({"event": "state", "data": initial}))
async for raw in websocket:
try: msg: dict = json.loads(raw)
except Exception:
await websocket.send(json.dumps({"error": "invalid json"}))
continue
async def get_imc(name, data):
key = str(uuid.uuid4())
imc_q.put({"name": name, "data": data, "key": key})
start = time.monotonic()
result = None
while time.monotonic() - start < 1:
if key in shared_data:
result = shared_data.pop(key)
break
await asyncio.sleep(0.1)
return result
action = msg.get("action")
if action == "skip":
imc_q.put({"name": "procman", "data": {"op": 2}})
await websocket.send(json.dumps({"status": "ok", "action": "skip_requested"}))
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}})
await websocket.send(json.dumps({"status": "ok", "message": f"{len(songs)} song(s) queued"}))
result = await get_imc("activemod", {"action": "get_toplay"})
if result is not None:
await websocket.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}))
else: await websocket.send(json.dumps({"data": result, "event": "toplay"}))
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}))
else:
await websocket.send(json.dumps({"data": result, "event": "toplay"})) # Yes, this is not an accident
await websocket.loop.run_in_executor(None, ws_q.put, {"data": result, "event": "toplay"})
elif action == "skip_next":
result = await get_imc("activemod", msg)
if result is None: await websocket.send(json.dumps({"error": "timeout", "code": 504}))
else: await websocket.send(json.dumps({"data": result, "event": action}))
elif action == "skipc":
result = await get_imc("activemod", msg)
if result is None: await websocket.send(json.dumps({"error": "timeout", "code": 504}))
else: await websocket.send(json.dumps({"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}))
else:
await websocket.send(json.dumps(result))
result = await get_imc("activemod", {"action": "get_toplay"})
if result is not None:
await websocket.loop.run_in_executor(None, ws_q.put, {"data": result, "event": "toplay"})
elif action == "request_state":
# supports requesting specific parts if provided
what = msg.get("what", "")
try:
if what == "playlist": payload = json.loads(shared_data.get("playlist", "[]"))
elif what == "track": payload = json.loads(shared_data.get("track", "{}"))
elif what == "progress": payload = json.loads(shared_data.get("progress", "{}"))
elif what == "dirs": payload = {"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)}
else:
payload = {
"playlist": json.loads(shared_data.get("playlist", "[]")),
"track": json.loads(shared_data.get("track", "{}")),
"progress": json.loads(shared_data.get("progress", "{}")),
"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: payload = {}
await websocket.send(json.dumps({"event": "state", "data": payload}))
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}))
else: await websocket.send(json.dumps({"error": "unknown action"}))
async def broadcast_worker(ws_q: multiprocessing.Queue, clients: set):
loop = asyncio.get_event_loop()
while True:
msg = await loop.run_in_executor(None, ws_q.get)
if msg is None: break
payload = json.dumps(msg)
if clients:
coros = []
for ws in list(clients): coros.append(_safe_send(ws, payload, clients))
await asyncio.gather(*coros)
async def _safe_send(ws, payload: str, clients: set):
try: await ws.send(payload)
except Exception:
try: clients.discard(ws)
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)
try: await ws_handler(websocket, shared_data, imc_q, ws_q)
finally:
await websocket.close(1001, "")
clients.discard(websocket)
async def process_request(websocket: ServerConnection, request: Request):
if request.path == "/" and (file := Path(__file__, "..", "web.html").resolve()).exists():
data = file.read_bytes()
return Response(
200,
"OK",
Headers([("Content-Type", "text/html"), ("Content-Length", f"{len(data)}")]),
data
)
if request.path == "/favicon.ico":
data = b"Not Found"
return Response(
404,
"Not Found",
Headers([("Content-Length", f"{len(data)}")]),
data
)
if not "upgrade" in request.headers.get("Connection", "").lower():
return Response(
426,
"Upgrade Required",
Headers([("Connection", "Upgrade"), ("Upgrade", "websocket")]),
b"WebSocket upgrade required\n"
)
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.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):
"""
Listens for messages placed in imc_q by websocket process or other modules,
forwards them to the main IPC layer and stores keyed responses into shared dict.
"""
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,
"global_args": global_args
})
self.data["playlist"] = json.dumps(api_data)
try: self.ws_q.put({"event": "playlist", "data": api_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": 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:
try: self.ws_q.put({"event": "imc", "data": {"name": source_name, "data": data, "broadcast": broadcast}})
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=2)
self.ws_process.join(timeout=3)
if self.ws_process.is_alive():
self.ws_process.terminate()
self.ws_process.join(timeout=2)
if self.ws_process.is_alive():
self.ws_process.kill()
self.ws_process.join(timeout=1)
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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