luzadevandClaude Opus 4.7
8c06a26ddb
- Frontend HTML/CSS/JS in webui/ (stile Spotify-like, hero gradient, modal blur) - API bridge JS<->Python in api/bridge.py - Core invariato: downloader yt-dlp, upgrader, spotify client, config - Build scripts macOS (WebKit) e Windows (EdgeChromium) - .gitignore esclude credenziali (config.json, cookies.txt) e artefatti build Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
391 lines
15 KiB
Python
391 lines
15 KiB
Python
"""Ponte JS <-> Python: tutti i metodi che la UI invoca via pywebview.api."""
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from __future__ import annotations
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import json
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import os
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import threading
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import time
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import webbrowser
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from typing import Any, Optional
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from core.config import load_config, save_config, VERSION
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from core.downloader import (
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download_playlist,
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download_direct_url,
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request_stop as request_download_stop,
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reset_stop as reset_download_stop,
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is_stopped as download_is_stopped,
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)
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from core.spotify_client import get_access_token, resolve_spotify_url
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from core.upgrader import (
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upgrade_folder,
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request_stop as request_upgrade_stop,
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count_files_info,
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)
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SPOTIFY_GUIDE_TEXT = """\
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1) Vai su https://developer.spotify.com/dashboard e accedi (anche con account free).
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2) Clicca "Create app".
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3) Compila:
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- App name: MusicDownload (o quello che vuoi)
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- Description: a piacere
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- Redirect URI: http://localhost:8888/callback (obbligatorio ma non usato)
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- Seleziona "Web API"
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- Accetta i termini, "Save"
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4) Apri la app appena creata > "Settings" e copia:
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- Client ID
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- Client Secret (clicca "View client secret")
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5) Incollali qui sotto e premi "Salva".
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Note: credenziali gratuite, no Premium. Limite 100 richieste/minuto.
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"""
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def _js_safe(value: Any) -> str:
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"""Serializza un valore per inserirlo in evaluate_js."""
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return json.dumps(value, ensure_ascii=False)
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class Api:
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"""Espone i metodi a JavaScript tramite pywebview js_api."""
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def __init__(self):
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self.window = None # impostato dopo create_window
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self._download_thread: Optional[threading.Thread] = None
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self._upgrade_thread: Optional[threading.Thread] = None
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# ------------------------------------------------------------------
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# Helpers
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# ------------------------------------------------------------------
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def _emit(self, channel: str, payload: dict | str | None = None) -> None:
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"""Invia un evento al frontend."""
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if not self.window:
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return
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try:
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self.window.evaluate_js(
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f"window.bridge && window.bridge.emit({_js_safe(channel)}, {_js_safe(payload)});"
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)
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except Exception:
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pass
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def _log(self, view: str, msg: str) -> None:
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self._emit("log", {"view": view, "msg": msg})
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# ------------------------------------------------------------------
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# Bootstrap
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# ------------------------------------------------------------------
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def get_init_data(self) -> dict:
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"""Chiamato dal frontend all'avvio per popolare lo stato iniziale."""
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cfg = load_config()
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return {
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"version": VERSION,
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"config": cfg,
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"spotify_guide": SPOTIFY_GUIDE_TEXT,
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}
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# ------------------------------------------------------------------
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# Settings
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# ------------------------------------------------------------------
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def save_settings(self, payload: dict) -> dict:
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try:
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threshold = int(payload.get("hq_threshold", 310))
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except (TypeError, ValueError):
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threshold = 310
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config = {
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"client_id": (payload.get("client_id") or "").strip(),
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"client_secret": (payload.get("client_secret") or "").strip(),
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"bitrate": payload.get("bitrate", "320K"),
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"hq_threshold": threshold,
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"cookies_path": (payload.get("cookies_path") or "").strip(),
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"output_dir": (payload.get("output_dir") or "").strip(),
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"theme": payload.get("theme", "dark"),
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}
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save_config(config)
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return {"ok": True}
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def check_update(self) -> dict:
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"""Controlla aggiornamenti chiamando version.json remoto."""
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import urllib.request
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UPDATE_URL = "https://www.djluza.com/musicdownload/version.json"
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try:
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req = urllib.request.Request(UPDATE_URL, headers={"User-Agent": "MusicDownload"})
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with urllib.request.urlopen(req, timeout=10) as resp:
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data = json.loads(resp.read().decode())
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remote = data.get("version", "")
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return {
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"ok": True,
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"current": VERSION,
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"remote": remote,
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"is_new": bool(remote and remote != VERSION),
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"download_url": data.get("download_url", ""),
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"notes": data.get("notes", ""),
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}
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except Exception as e:
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return {"ok": False, "error": str(e), "current": VERSION}
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# ------------------------------------------------------------------
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# File dialogs (delegati a pywebview)
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# ------------------------------------------------------------------
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def _folder_dialog_type(self):
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import webview
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# API nuova (>= 5.x): webview.FileDialog.FOLDER
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# API vecchia: webview.FOLDER_DIALOG
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if hasattr(webview, "FileDialog"):
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return webview.FileDialog.FOLDER
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return webview.FOLDER_DIALOG
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def _open_dialog_type(self):
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import webview
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if hasattr(webview, "FileDialog"):
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return webview.FileDialog.OPEN
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return webview.OPEN_DIALOG
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def browse_directory(self) -> str:
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if not self.window:
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return ""
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result = self.window.create_file_dialog(self._folder_dialog_type())
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if result:
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return result[0] if isinstance(result, (list, tuple)) else result
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return ""
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def browse_file(self, filetypes: Optional[list] = None) -> str:
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if not self.window:
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return ""
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if filetypes:
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ft = tuple(filetypes)
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else:
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ft = ("Text files (*.txt)", "All files (*.*)")
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result = self.window.create_file_dialog(self._open_dialog_type(), file_types=ft)
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if result:
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return result[0] if isinstance(result, (list, tuple)) else result
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return ""
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def load_url_list(self, path: str) -> dict:
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try:
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with open(path, "r", encoding="utf-8") as f:
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urls = [line.strip() for line in f if line.strip() and not line.strip().startswith("#")]
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return {"ok": True, "urls": urls, "count": len(urls)}
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except Exception as e:
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return {"ok": False, "error": str(e)}
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def open_external_url(self, url: str) -> None:
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webbrowser.open(url)
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# ------------------------------------------------------------------
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# Audio folder scan (Upgrade tab)
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# ------------------------------------------------------------------
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def scan_audio_folder(self, directory: str, recursive: bool) -> dict:
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try:
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total, done = count_files_info(directory, bool(recursive))
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return {"ok": True, "total": total, "done": done, "remaining": total - done}
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except Exception as e:
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return {"ok": False, "error": str(e)}
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# ------------------------------------------------------------------
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# DOWNLOAD
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# ------------------------------------------------------------------
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def start_download(self, payload: dict) -> dict:
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if self._download_thread and self._download_thread.is_alive():
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return {"ok": False, "error": "Download gia in corso"}
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urls = payload.get("urls") or []
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output_dir = (payload.get("output_dir") or "").strip()
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if not urls:
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return {"ok": False, "error": "Nessun URL fornito"}
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if not output_dir:
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return {"ok": False, "error": "Cartella output non impostata"}
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self._download_thread = threading.Thread(
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target=self._download_worker,
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args=(list(urls), output_dir),
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daemon=True,
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)
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self._download_thread.start()
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return {"ok": True}
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def stop_download(self) -> dict:
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request_download_stop()
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self._log("download", "[INFO] Interruzione richiesta...")
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return {"ok": True}
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def _download_worker(self, urls: list, output_dir: str) -> None:
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reset_download_stop()
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cfg = load_config()
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bitrate = cfg.get("bitrate", "320K")
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cookies_path = cfg.get("cookies_path", "")
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total_urls = len(urls)
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multi = total_urls > 1
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view = "download"
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token = None
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has_spotify = any("spotify.com" in u for u in urls)
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if has_spotify:
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client_id = cfg.get("client_id", "")
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client_secret = cfg.get("client_secret", "")
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if not client_id or not client_secret:
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self._log(view, "[ERRORE] Configura Client ID e Client Secret nelle Impostazioni.")
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self._emit("download:done", {"ok": False})
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return
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self._log(view, "[INFO] Autenticazione Spotify...")
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try:
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token = get_access_token(client_id, client_secret)
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except Exception as e:
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self._log(view, f"[ERRORE] Autenticazione fallita: {e}")
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self._emit("download:done", {"ok": False})
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return
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for url_idx, url in enumerate(urls):
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if download_is_stopped():
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self._log(view, "[INFO] Download interrotto.")
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break
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if multi:
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self._log(view, f"\n{'='*50}")
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self._log(view, f"[LISTA] URL {url_idx + 1} di {total_urls}")
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self._log(view, f"{'='*50}")
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is_spotify = "spotify.com" in url
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_last = [0.0]
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_THROTTLE = 0.10
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url_base = url_idx / total_urls if multi else 0
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url_weight = 1 / total_urls if multi else 1
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def progress_cb(idx, total, track_name, status, pct,
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_base=url_base, _weight=url_weight, _uidx=url_idx):
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if status == "downloading":
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now = time.monotonic()
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if now - _last[0] < _THROTTLE:
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return
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_last[0] = now
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payload_evt = {
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"idx": idx, "total": total, "track": track_name,
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"status": status, "pct": pct,
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"url_idx": _uidx, "url_total": total_urls,
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}
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if status == "searching":
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self._log(view, f"[CERCA] {track_name}")
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elif status == "skipped":
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self._log(view, f"[SKIP] {track_name} (gia scaricato)")
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track_progress = (idx + 1) / total if total > 0 else 1
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payload_evt["overall"] = min(_base + track_progress * _weight, 1.0)
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elif status == "downloading":
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track_progress = (idx / total) + (pct / 100 / total) if total > 0 else 0
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payload_evt["overall"] = min(_base + track_progress * _weight, 1.0)
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elif status == "done":
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self._log(view, f"[OK] {track_name}")
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track_progress = (idx + 1) / total if total > 0 else 1
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payload_evt["overall"] = min(_base + track_progress * _weight, 1.0)
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elif status == "stopped":
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self._log(view, "[INFO] Download interrotto.")
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elif status == "completed":
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if not multi:
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payload_evt["overall"] = 1.0
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self._log(view, "[INFO] Download completato!")
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elif status.startswith("error"):
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self._log(view, f"[ERRORE] {track_name}: {status}")
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self._emit("download:progress", payload_evt)
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if is_spotify:
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self._log(view, "[INFO] Recupero informazioni da Spotify...")
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try:
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label, name, tracks = resolve_spotify_url(token, url)
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except Exception as e:
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self._log(view, f"[ERRORE] {e}")
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continue
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self._log(view, f"[INFO] {label}: {name} ({len(tracks)} brani)")
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dest_dir = os.path.join(output_dir, name)
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download_playlist(tracks, dest_dir, bitrate, cookies_path, progress_cb)
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else:
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self._log(view, f"[INFO] Download diretto via yt-dlp: {url}")
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download_direct_url(url, output_dir, bitrate, cookies_path, progress_cb)
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if multi and not download_is_stopped():
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self._log(view, f"\n[INFO] Completate tutte le {total_urls} playlist/URL!")
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self._emit("download:progress", {
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"status": "completed", "overall": 1.0,
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"url_total": total_urls,
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})
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self._emit("download:done", {"ok": True})
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# ------------------------------------------------------------------
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# UPGRADE
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# ------------------------------------------------------------------
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def start_upgrade(self, payload: dict) -> dict:
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if self._upgrade_thread and self._upgrade_thread.is_alive():
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return {"ok": False, "error": "Upgrade gia in corso"}
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directory = (payload.get("directory") or "").strip()
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recursive = bool(payload.get("recursive", False))
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try:
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threshold = int(payload.get("threshold", 310))
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except (TypeError, ValueError):
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threshold = 310
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if not directory:
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return {"ok": False, "error": "Cartella non impostata"}
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cfg = load_config()
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cookies_path = cfg.get("cookies_path", "")
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self._upgrade_thread = threading.Thread(
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target=self._upgrade_worker,
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args=(directory, threshold, cookies_path, recursive),
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daemon=True,
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)
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self._upgrade_thread.start()
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return {"ok": True}
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def stop_upgrade(self) -> dict:
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request_upgrade_stop()
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self._log("upgrade", "[INFO] Interruzione richiesta...")
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return {"ok": True}
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def _upgrade_worker(self, directory, threshold, cookies_path, recursive):
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view = "upgrade"
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def progress_cb(idx, total, filename, status, old_kbps, new_kbps):
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payload_evt = {
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"idx": idx, "total": total, "filename": filename,
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"status": status, "old_kbps": old_kbps, "new_kbps": new_kbps,
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}
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if total > 0:
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payload_evt["overall"] = min(idx / total, 1.0)
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if status == "searching":
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self._log(view, f"[CERCA] {filename} ({old_kbps}kbps)")
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elif status == "not_found":
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self._log(view, f"[NON TROVATO] {filename}")
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elif status == "cover_only":
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self._log(view, f"[COPERTINA] {filename} (gia {old_kbps}kbps)")
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elif status == "cover_done":
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self._log(view, f"[OK COPERTINA] {filename}")
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elif status == "cover_failed":
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self._log(view, f"[SKIP] {filename} - copertina non disponibile ({old_kbps}kbps ok)")
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elif status == "downloading":
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self._log(view, f"[DOWNLOAD] {filename} ({old_kbps}kbps)")
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elif status == "upgraded":
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diff = new_kbps - old_kbps
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diff_str = f" (+{diff}kbps)" if diff > 0 else ""
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self._log(view, f"[UPGRADE] {filename}: {old_kbps} -> {new_kbps}kbps{diff_str}")
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elif status == "download_error":
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self._log(view, f"[ERRORE] {filename}: download fallito")
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elif status == "stopped":
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self._log(view, "[INFO] Upgrade interrotto.")
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elif status == "completed":
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payload_evt["overall"] = 1.0
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self._log(view, "[INFO] Upgrade completato!")
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self._emit("upgrade:progress", payload_evt)
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upgrade_folder(directory, threshold, cookies_path, recursive, progress_cb)
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self._emit("upgrade:done", {"ok": True})
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