Files
Lyra/worker/lyra_worker/adapters/_slskd.py
T

136 lines
4.9 KiB
Python

import json
import os
import time
from typing import Callable
import requests
_AUDIO_EXT = {"flac", "mp3", "m4a", "ogg", "opus", "wav", "aac"}
_LOSSLESS_EXT = {"flac", "wav"}
_SEARCH_POLLS = 40 # * 3s ≈ 2 min
_XFER_POLLS = 200 # * 3s ≈ 10 min
_POLL_SECONDS = 3
def _basename(path: str) -> str:
return path.rsplit("\\", 1)[-1].rsplit("/", 1)[-1]
def _dirname(path: str) -> str:
if "\\" in path:
return path.rsplit("\\", 1)[0]
if "/" in path:
return path.rsplit("/", 1)[0]
return ""
class SlskdClient:
"""Real Soulseek client talking to an slskd daemon's REST API.
NOT unit-tested offline; see test_soulseek_live.py. slskd response/transfer
JSON shapes may vary by version — validate with the live test.
"""
def __init__(self, config: dict):
self._url = (config.get("slskd.url", "") or "").rstrip("/")
self._key = config.get("slskd.api_key", "")
def is_configured(self) -> bool:
return bool(self._url and self._key)
def _headers(self) -> dict:
return {"X-API-Key": self._key, "Content-Type": "application/json"}
def _get(self, path: str) -> dict | list:
r = requests.get(f"{self._url}{path}", headers=self._headers(), timeout=30)
r.raise_for_status()
return r.json()
def search_album(self, artist: str, album: str) -> list[dict]:
r = requests.post(
f"{self._url}/api/v0/searches",
headers=self._headers(),
json={"searchText": f"{artist} {album}"},
timeout=30,
)
r.raise_for_status()
search_id = r.json()["id"]
for _ in range(_SEARCH_POLLS):
time.sleep(_POLL_SECONDS)
state = self._get(f"/api/v0/searches/{search_id}")
if state.get("isComplete") or "Completed" in str(state.get("state", "")):
break
responses = self._get(f"/api/v0/searches/{search_id}/responses")
candidates: list[dict] = []
for resp in responses:
username = resp.get("username", "")
by_dir: dict[str, list] = {}
for f in resp.get("files", []) or []:
name = f.get("filename", "")
ext = name.rsplit(".", 1)[-1].lower() if "." in name else ""
if ext not in _AUDIO_EXT:
continue
by_dir.setdefault(_dirname(name), []).append(
{"filename": name, "size": f.get("size", 0), "ext": ext}
)
for directory, dfiles in by_dir.items():
if not dfiles:
continue
lossless = all(f["ext"] in _LOSSLESS_EXT for f in dfiles)
dirname = _basename(directory)
if " - " in dirname:
guess_artist, guess_album = (p.strip() for p in dirname.split(" - ", 1))
else:
guess_artist, guess_album = "", dirname
candidates.append(
{
"source_ref": json.dumps(
{
"username": username,
"files": [{"filename": f["filename"], "size": f["size"]} for f in dfiles],
}
),
"title": guess_album,
"artist": guess_artist,
"track_count": len(dfiles),
"format": "FLAC" if lossless else "MP3",
"bitrate": None,
}
)
return candidates
def download(self, source_ref: str, dest: str, on_progress: Callable[[float], None]) -> dict:
ref = json.loads(source_ref)
username = ref["username"]
files = ref["files"]
os.makedirs(dest, exist_ok=True)
r = requests.post(
f"{self._url}/api/v0/transfers/downloads/{username}",
headers=self._headers(),
json=[{"filename": f["filename"], "size": f["size"]} for f in files],
timeout=30,
)
r.raise_for_status()
on_progress(0.0)
total = len(files)
for _ in range(_XFER_POLLS):
time.sleep(_POLL_SECONDS)
data = self._get(f"/api/v0/transfers/downloads/{username}")
states: list[str] = []
for directory in data.get("directories", []) if isinstance(data, dict) else []:
for f in directory.get("files", []):
states.append(str(f.get("state", "")))
if states:
done = sum(1 for s in states if "Completed" in s)
on_progress(min(1.0, done / max(total, 1)))
if any(bad in s for s in states for bad in ("Errored", "Rejected", "Cancelled")):
raise RuntimeError("soulseek transfer failed")
if done >= total:
break
return {"track_count": total, "path": dest}