416 lines
16 KiB
Python
416 lines
16 KiB
Python
import base64
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import json
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import os
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import random
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import shutil
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import tempfile
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import time
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import xml.etree.ElementTree as ET
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from collections.abc import Callable
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from logging import Logger
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from uuid import uuid4
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import ffmpeg
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import m3u8
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import requests
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from helper.format import is_json, is_xml
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from helper.tidal import name_builder_item
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from model.tidal import StreamManifest
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from requests.exceptions import HTTPError
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from rich.progress import Progress
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from tidalapi import Album, Mix, Playlist, Session, Track, UserPlaylist, Video
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from tidal_dl_ng.config import Settings
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from tidal_dl_ng.constants import REQUESTS_TIMEOUT_SEC, MediaType, SkipExisting
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from tidal_dl_ng.helper.decryption import decrypt_file, decrypt_security_token
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from tidal_dl_ng.helper.exceptions import MediaMissing, MediaUnknown, UnknownManifestFormat
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from tidal_dl_ng.helper.path import check_file_exists, format_path_media, path_file_sanitize
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from tidal_dl_ng.helper.wrapper import WrapperLogger
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from tidal_dl_ng.metadata import Metadata
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from tidal_dl_ng.model.gui_data import ProgressBars
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# TODO: Set appropriate client string and use it for video download.
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# https://github.com/globocom/m3u8#using-different-http-clients
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class RequestsClient:
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def download(
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self, uri: str, timeout: int = REQUESTS_TIMEOUT_SEC, headers: dict | None = None, verify_ssl: bool = True
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):
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if not headers:
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headers = {}
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o = requests.get(uri, timeout=timeout, headers=headers)
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return o.text, o.url
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class Download:
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# TODO: Implement download cover 1280.
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session: Session = None
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skip_existing: SkipExisting = False
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def __init__(self, session: Session, skip_existing: SkipExisting = SkipExisting.Disabled):
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self.session = session
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self.skip_existing = skip_existing
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def _audio_mpeg_dash(self, audio: Track, path_file: str) -> str | None:
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pass
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def _video(self, video: Video, path_file: str) -> str | None:
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result: str | None = None
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m3u8_variant: m3u8.M3U8 = m3u8.load(video.get_url())
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m3u8_playlist: m3u8.M3U8 | bool = False
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settings: Settings = Settings()
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resolution_best: int = 0
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if m3u8_variant.is_variant:
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for playlist in m3u8_variant.playlists:
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if resolution_best < playlist.stream_info.resolution[1]:
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resolution_best = playlist.stream_info.resolution[1]
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m3u8_playlist = m3u8.load(playlist.uri)
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if settings.data.quality_video.value == playlist.stream_info.resolution[1]:
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break
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if m3u8_playlist:
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with open(path_file, "wb") as f:
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for segment in m3u8_playlist.data["segments"]:
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url = segment["uri"]
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r = requests.get(url, timeout=REQUESTS_TIMEOUT_SEC)
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f.write(r.content)
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result = path_file
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return result
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def instantiate_media(
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self, session: Session, media_type: MediaType.Track | MediaType.Video, id_media: str
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) -> Track | Video:
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if media_type == MediaType.Track:
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media = Track(session, id_media)
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elif media_type == MediaType.Video:
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media = Video(session, id_media)
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else:
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raise MediaUnknown
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return media
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def item(
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self,
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path_base: str,
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file_template: str,
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fn_logger: Callable,
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media: Track | Video = None,
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media_id: str = None,
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media_type: MediaType = None,
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video_download: bool = True,
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progress_gui: ProgressBars = None,
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progress: Progress = None,
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) -> (bool, str):
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# If only a media_id is provided, we need to create the media instance.
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if media_id and media_type:
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media = self.instantiate_media(self.session, media_type, media_id)
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elif not media:
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raise MediaMissing
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# If video download is not allowed end here
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if not video_download:
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fn_logger.info(
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f"Video downloads are deactivated (see settings). Skipping video: {name_builder_item(media)}"
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)
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return False, ""
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# Create file name and path
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file_name_relative = format_path_media(file_template, media)
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path_file = os.path.abspath(os.path.normpath(os.path.join(path_base, file_name_relative)))
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# Compute the file extension
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# TODO: Move further down?
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if isinstance(media, Track):
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stream = media.stream()
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stream_manifest = self.stream_manifest_parse(stream.manifest)
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# Sanitize final path_file to fit into OS boundaries.
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path_file = path_file_sanitize(path_file, adapt=True)
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# Compute if and how downloads need to be skipped.
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if self.skip_existing:
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extension_ignore = self.skip_existing == SkipExisting.ExtensionIgnore
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# TODO: Check if extension is already in `path_file` or not.
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download_skip = check_file_exists(path_file, extension_ignore=extension_ignore)
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else:
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download_skip = False
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if not download_skip:
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# Create a temp directory and file.
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with tempfile.TemporaryDirectory(ignore_cleanup_errors=True) as tmp_path_dir:
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tmp_path_file = os.path.join(tmp_path_dir, str(uuid4()))
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if isinstance(media, Track):
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tmp_path_file = self._audio_stream(
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fn_logger, media, progress, progress_gui, stream_manifest, tmp_path_file
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)
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elif isinstance(media, Video):
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tmp_path_file = self._video(media, tmp_path_file)
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# TODO: Check if is possible to write metadata to MPEG Transport Stream files.
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# TODO: Make optional.
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# Convert `*.ts` file to `*.mp4` using ffmpeg
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if True:
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tmp_path_file = self._video_convert(tmp_path_file)
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path_file = os.path.splitext(path_file)[0] + ".mp4"
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# Move final file to the configured destination directory.
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os.makedirs(os.path.dirname(path_file), exist_ok=True)
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shutil.move(tmp_path_file, path_file)
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else:
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fn_logger.debug(f"Download skipped, since file exists: '{path_file}'")
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return not download_skip, path_file
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def _audio_stream(
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self,
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fn_logger: Callable,
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media: Track,
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progress: Progress,
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progress_gui: ProgressBars,
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stream_manifest: StreamManifest,
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path_file: str,
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):
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# Set the correct progress output channel.
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if progress_gui is None:
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progress_stdout: bool = True
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else:
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progress_stdout: bool = False
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progress_gui.item_name.emit(media.name)
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try:
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# Download the media as stream, so we can iterate over the response.
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r = requests.get(stream_manifest.stream_url, stream=True, timeout=REQUESTS_TIMEOUT_SEC)
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r.raise_for_status()
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# Get file size and compute progress steps
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total_size_in_bytes = int(r.headers.get("content-length", 0))
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block_size = 4096
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p_task = progress.add_task(
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f"[blue]Item '{media.name[:30]}'",
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total=total_size_in_bytes / block_size,
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visible=progress_stdout,
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)
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# Write content to file until progress is finished.
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while not progress.tasks[p_task].finished:
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with open(path_file, "wb") as f:
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for data in r.iter_content(chunk_size=block_size):
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f.write(data)
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# Advance progress bar.
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progress.advance(p_task)
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# To send the progress to the GUI, we need to emit the percentage.
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if not progress_stdout:
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progress_gui.item.emit(progress.tasks[p_task].percentage)
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except HTTPError as e:
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# TODO: Handle Exception...
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fn_logger(e)
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# Check if file is encrypted.
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needs_decryption = self.is_encrypted(stream_manifest.encryption_type)
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if needs_decryption:
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key, nonce = decrypt_security_token(stream_manifest.encryption_key)
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tmp_path_file_decrypted = path_file + "_decrypted"
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decrypt_file(path_file, tmp_path_file_decrypted, key, nonce)
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else:
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tmp_path_file_decrypted = path_file
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# Write metadata to file.
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self.metadata_write(media, tmp_path_file_decrypted)
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return tmp_path_file_decrypted
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def cover_url(self, sid: str, width: int = 320, height: int = 320):
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if sid is None:
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return ""
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return f"https://resources.tidal.com/images/{sid.replace('-', '/')}/{int(width)}x{int(height)}.jpg"
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def metadata_write(self, track: Track, path_file: str):
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settings: Settings = Settings()
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result: bool = False
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release_date: str = track.album.release_date.strftime("%Y-%m-%d") if track.album.release_date else ""
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copy_right: str = track.copyright if track.copyright else ""
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isrc: str = track.isrc if track.isrc else ""
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try:
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lyrics: str = track.lyrics().subtitles if hasattr(track, "lyrics") else ""
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except HTTPError:
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lyrics: str = ""
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# TODO: Check if it is possible to pass "None" values.
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m: Metadata = Metadata(
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path_file=path_file,
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lyrics=lyrics,
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copy_right=copy_right,
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title=track.name,
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artists=[artist.name for artist in track.artists],
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album=track.album.name,
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tracknumber=track.track_num,
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date=release_date,
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isrc=isrc,
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albumartist=track.artist.name,
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totaltrack=track.album.num_tracks if track.album.num_tracks else 1,
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totaldisc=track.album.num_volumes if track.album.num_volumes else 1,
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discnumber=track.volume_num,
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url_cover=self.cover_url(
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track.album.cover, settings.data.metadata_cover_width, settings.data.metadata_cover_height
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),
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)
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m.save()
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result = True
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return result
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def items(
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self,
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path_base: str,
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fn_logger: Logger | WrapperLogger,
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id_media: str = None,
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media_type: MediaType = None,
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file_template: str = None,
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list_media: Album | Playlist | UserPlaylist | Mix = None,
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video_download: bool = False,
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progress_gui: ProgressBars = None,
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progress: Progress = None,
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download_delay: bool = True,
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):
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if not list_media:
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if media_type == MediaType.Album:
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list_media = Album(self.session, id_media)
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elif media_type == MediaType.Playlist:
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list_media = Playlist(self.session, id_media)
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elif media_type == MediaType.Mix:
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list_media = Mix(self.session, id_media)
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else:
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raise MediaUnknown
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if file_template:
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file_name_relative = format_path_media(file_template, list_media)
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path_file = path_base
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else:
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file_name_relative = file_template
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path_file = format_path_media(path_base, list_media)
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# TODO: Extend with pagination support: Iterate through `items` and `tracks`until len(returned list) == 0
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if isinstance(list_media, Mix):
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items = list_media.items()
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list_media_name = list_media.title[:30]
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elif video_download:
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items = list_media.items(limit=100)
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list_media_name = list_media.name[:30]
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else:
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items = list_media.tracks(limit=999)
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list_media_name = list_media.name[:30]
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if progress_gui is None:
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progress_stdout: bool = True
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else:
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progress_stdout: bool = False
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p_task1 = progress.add_task(f"[green]List '{list_media_name}'", total=len(items), visible=progress_stdout)
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while not progress.finished:
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for media in items:
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Progress()
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# TODO: Handle return value of `track` method.
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status_download, result_path_file = self.item(
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path_base=path_file,
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file_template=file_name_relative,
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media=media,
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progress_gui=progress_gui,
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progress=progress,
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fn_logger=fn_logger,
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)
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progress.advance(p_task1)
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if not progress_stdout:
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progress_gui.list_item.emit(progress.tasks[p_task1].percentage)
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if download_delay and status_download:
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time_sleep: float = round(random.SystemRandom().uniform(2, 5), 1)
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# TODO: Fix logging. Is not displayed in debug window.
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fn_logger.debug(f"Next download will start in {time_sleep} seconds.")
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time.sleep(time_sleep)
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def is_encrypted(self, encryption_type: str) -> bool:
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result = encryption_type != "NONE"
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return result
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def get_file_extension(self, stream_url: str, stream_codec: str) -> str:
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result = None
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if ".flac" in stream_url:
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result = ".flac"
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elif ".mp4" in stream_url:
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if "ac4" in stream_codec or "mha1" in stream_codec:
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result = ".mp4"
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elif "flac" in stream_codec:
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result = ".flac"
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else:
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result = ".m4a"
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else:
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result = ".m4a"
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return result
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def _video_convert(self, path_file: str) -> str:
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path_file_out = os.path.splitext(path_file)[0] + ".mp4"
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result, _ = ffmpeg.input(path_file).output(path_file_out, map=0, c="copy").run()
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return path_file_out
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def stream_manifest_parse(self, manifest: str) -> StreamManifest:
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# Stream Manifest is base64 encoded.
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manifest_parsed: str = base64.b64decode(manifest).decode("utf-8")
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if is_xml(manifest_parsed):
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root = ET.fromstring(manifest_parsed)
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stream_url: str = root[0][0][0][0].attrib["media"]
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codecs: str = root[0][0][0].attrib["codecs"]
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mime_type: str = root[0][0].attrib["mimeType"]
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file_extension: str = self.get_file_extension(stream_url, codecs)
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# TODO: Handle encryption key. But I have never seen an encrypted file so far.
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encryption_type: str = "NONE"
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encryption_key: str | None = None
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elif is_json(manifest_parsed):
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# JSON string to object.
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stream_manifest = json.loads(manifest_parsed)
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# TODO: Handle more than one dowload URL
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stream_url: str = stream_manifest["urls"][0]
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codecs: str = stream_manifest["codecs"]
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mime_type: str = stream_manifest["mimeType"]
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file_extension: str = self.get_file_extension(stream_url, codecs)
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encryption_type: str = stream_manifest["encryptionType"]
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encryption_key: str | None = (
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stream_manifest["encryptionKey"] if self.is_encrypted(encryption_type) else None
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)
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else:
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raise UnknownManifestFormat
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result: StreamManifest = StreamManifest(
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stream_url=stream_url,
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codecs=codecs,
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file_extension=file_extension,
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encryption_type=encryption_type,
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encryption_key=encryption_key,
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mime_type=mime_type,
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)
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return result
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