kopia lustrzana https://dev.funkwhale.audio/funkwhale/funkwhale
809 wiersze
24 KiB
Python
809 wiersze
24 KiB
Python
import base64
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from collections.abc import Mapping
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import datetime
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import logging
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import arrow
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import mutagen._util
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import mutagen.oggtheora
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import mutagen.oggvorbis
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import mutagen.flac
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from rest_framework import serializers
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from funkwhale_api.tags import models as tags_models
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logger = logging.getLogger(__name__)
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NODEFAULT = object()
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# default title used when imported tracks miss the `Album` tag, see #122
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UNKNOWN_ALBUM = "[Unknown Album]"
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class TagNotFound(KeyError):
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pass
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class UnsupportedTag(KeyError):
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pass
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class ParseError(ValueError):
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pass
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def get_id3_tag(f, k):
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if k == "pictures":
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return f.tags.getall("APIC")
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# First we try to grab the standard key
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possible_attributes = [("text", True), ("url", False)]
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for attr, select_first in possible_attributes:
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try:
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v = getattr(f.tags[k], attr)
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if select_first:
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v = v[0]
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return v
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except KeyError:
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break
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except IndexError:
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break
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except AttributeError:
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continue
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# then we fallback on parsing non standard tags
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all_tags = f.tags.getall("TXXX")
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try:
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matches = [t for t in all_tags if t.desc.lower() == k.lower()]
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return matches[0].text[0]
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except (KeyError, IndexError):
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raise TagNotFound(k)
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def clean_id3_pictures(apic):
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pictures = []
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for p in list(apic):
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pictures.append(
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{
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"mimetype": p.mime,
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"content": p.data,
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"description": p.desc,
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"type": p.type.real,
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}
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)
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return pictures
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def get_mp4_tag(f, k):
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if k == "pictures":
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return f.get("covr", [])
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raw_value = f.get(k, None)
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if not raw_value:
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raise TagNotFound(k)
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value = raw_value[0]
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try:
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return value.decode()
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except AttributeError:
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return value
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def get_mp4_position(raw_value):
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return raw_value[0]
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def clean_mp4_pictures(raw_pictures):
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pictures = []
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for p in list(raw_pictures):
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if p.imageformat == p.FORMAT_JPEG:
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mimetype = "image/jpeg"
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elif p.imageformat == p.FORMAT_PNG:
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mimetype = "image/png"
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else:
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continue
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pictures.append(
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{
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"mimetype": mimetype,
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"content": bytes(p),
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"description": "",
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"type": mutagen.id3.PictureType.COVER_FRONT,
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}
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)
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return pictures
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def get_flac_tag(f, k):
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if k == "pictures":
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return f.pictures
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try:
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return f.get(k, [])[0]
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except (KeyError, IndexError):
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raise TagNotFound(k)
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def clean_flac_pictures(apic):
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pictures = []
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for p in list(apic):
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pictures.append(
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{
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"mimetype": p.mime,
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"content": p.data,
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"description": p.desc,
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"type": p.type.real,
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}
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)
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return pictures
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def clean_ogg_pictures(metadata_block_picture):
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pictures = []
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for b64_data in [metadata_block_picture]:
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try:
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data = base64.b64decode(b64_data)
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except (TypeError, ValueError):
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continue
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try:
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picture = mutagen.flac.Picture(data)
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except mutagen.flac.FLACError:
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continue
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pictures.append(
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{
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"mimetype": picture.mime,
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"content": picture.data,
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"description": "",
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"type": picture.type.real,
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}
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)
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return pictures
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def get_mp3_recording_id(f, k):
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try:
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return [t for t in f.tags.getall("UFID") if "musicbrainz.org" in t.owner][
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0
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].data.decode("utf-8")
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except IndexError:
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raise TagNotFound(k)
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def get_mp3_comment(f, k):
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keys_to_try = ["COMM", "COMM::eng"]
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for key in keys_to_try:
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try:
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return get_id3_tag(f, key)
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except TagNotFound:
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pass
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raise TagNotFound("COMM")
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VALIDATION = {}
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CONF = {
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"OggOpus": {
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"getter": lambda f, k: f[k][0],
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"fields": {
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"position": {"field": "TRACKNUMBER"},
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"disc_number": {"field": "DISCNUMBER"},
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"title": {},
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"artist": {},
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"artists": {},
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"album_artist": {"field": "albumartist"},
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"album": {},
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"date": {"field": "date"},
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"musicbrainz_albumid": {},
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"musicbrainz_artistid": {},
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"musicbrainz_albumartistid": {},
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"mbid": {"field": "musicbrainz_trackid"},
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"license": {},
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"copyright": {},
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"genre": {},
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"pictures": {
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"field": "metadata_block_picture",
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"to_application": clean_ogg_pictures,
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},
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"comment": {"field": "comment"},
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},
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},
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"OggVorbis": {
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"getter": lambda f, k: f[k][0],
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"fields": {
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"position": {"field": "TRACKNUMBER"},
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"disc_number": {"field": "DISCNUMBER"},
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"title": {},
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"artist": {},
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"artists": {},
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"album_artist": {"field": "albumartist"},
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"album": {},
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"date": {"field": "date"},
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"musicbrainz_albumid": {},
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"musicbrainz_artistid": {},
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"musicbrainz_albumartistid": {},
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"mbid": {"field": "musicbrainz_trackid"},
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"license": {},
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"copyright": {},
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"genre": {},
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"pictures": {
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"field": "metadata_block_picture",
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"to_application": clean_ogg_pictures,
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},
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"comment": {"field": "comment"},
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},
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},
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"OggTheora": {
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"getter": lambda f, k: f[k][0],
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"fields": {
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"position": {"field": "TRACKNUMBER"},
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"disc_number": {"field": "DISCNUMBER"},
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"title": {},
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"artist": {},
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"artists": {},
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"album_artist": {"field": "albumartist"},
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"album": {},
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"date": {"field": "date"},
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"musicbrainz_albumid": {"field": "MusicBrainz Album Id"},
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"musicbrainz_artistid": {"field": "MusicBrainz Artist Id"},
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"musicbrainz_albumartistid": {"field": "MusicBrainz Album Artist Id"},
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"mbid": {"field": "MusicBrainz Track Id"},
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"license": {},
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"copyright": {},
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"genre": {},
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"comment": {"field": "comment"},
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},
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},
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"ID3": {
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"getter": get_id3_tag,
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"clean_pictures": clean_id3_pictures,
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"fields": {
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"position": {"field": "TRCK"},
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"disc_number": {"field": "TPOS"},
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"title": {"field": "TIT2"},
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"artist": {"field": "TPE1"},
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"artists": {"field": "ARTISTS"},
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"album_artist": {"field": "TPE2"},
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"album": {"field": "TALB"},
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"date": {"field": "TDRC"},
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"musicbrainz_albumid": {"field": "MusicBrainz Album Id"},
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"musicbrainz_artistid": {"field": "MusicBrainz Artist Id"},
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"genre": {"field": "TCON"},
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"musicbrainz_albumartistid": {"field": "MusicBrainz Album Artist Id"},
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"mbid": {"field": "UFID", "getter": get_mp3_recording_id},
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"pictures": {},
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"license": {"field": "WCOP"},
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"copyright": {"field": "TCOP"},
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"comment": {"field": "COMM", "getter": get_mp3_comment},
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},
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},
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"MP4": {
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"getter": get_mp4_tag,
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"clean_pictures": clean_mp4_pictures,
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"fields": {
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"position": {"field": "trkn", "to_application": get_mp4_position},
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"disc_number": {"field": "disk", "to_application": get_mp4_position},
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"title": {"field": "©nam"},
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"artist": {"field": "©ART"},
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"artists": {"field": "----:com.apple.iTunes:ARTISTS"},
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"album_artist": {"field": "aART"},
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"album": {"field": "©alb"},
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"date": {"field": "©day"},
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"musicbrainz_albumid": {
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"field": "----:com.apple.iTunes:MusicBrainz Album Id"
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},
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"musicbrainz_artistid": {
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"field": "----:com.apple.iTunes:MusicBrainz Artist Id"
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},
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"genre": {"field": "©gen"},
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"musicbrainz_albumartistid": {
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"field": "----:com.apple.iTunes:MusicBrainz Album Artist Id"
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},
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"mbid": {"field": "----:com.apple.iTunes:MusicBrainz Track Id"},
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"pictures": {},
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"license": {"field": "----:com.apple.iTunes:LICENSE"},
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"copyright": {"field": "cprt"},
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"comment": {"field": "©cmt"},
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},
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},
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"FLAC": {
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"getter": get_flac_tag,
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"clean_pictures": clean_flac_pictures,
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"fields": {
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"position": {"field": "tracknumber"},
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"disc_number": {"field": "discnumber"},
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"title": {},
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"artist": {},
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"artists": {},
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"album_artist": {"field": "albumartist"},
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"album": {},
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"date": {"field": "date"},
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"musicbrainz_albumid": {},
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"musicbrainz_artistid": {},
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"musicbrainz_albumartistid": {},
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"genre": {},
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"mbid": {"field": "musicbrainz_trackid"},
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"test": {},
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"pictures": {},
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"license": {},
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"copyright": {},
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"comment": {},
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},
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},
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}
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CONF["MP3"] = CONF["ID3"]
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CONF["AIFF"] = CONF["ID3"]
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ALL_FIELDS = [
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"position",
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"disc_number",
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"title",
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"artist",
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"album_artist",
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"album",
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"date",
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"musicbrainz_albumid",
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"musicbrainz_artistid",
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"musicbrainz_albumartistid",
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"mbid",
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"license",
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"copyright",
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"comment",
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]
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class Metadata(Mapping):
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def __init__(self, filething, kind=mutagen.File):
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self._file = kind(filething)
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if self._file is None:
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raise ValueError("Cannot parse metadata from {}".format(filething))
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if len(self._file) == 0:
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raise ValueError("No tags found in {}".format(filething))
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self.fallback = self.load_fallback(filething, self._file)
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ft = self.get_file_type(self._file)
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try:
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self._conf = CONF[ft]
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except KeyError:
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raise ValueError("Unsupported format {}".format(ft))
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def get_file_type(self, f):
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return f.__class__.__name__
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def load_fallback(self, filething, parent):
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"""
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In some situations, such as Ogg Theora files tagged with MusicBrainz Picard,
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part of the tags are only available in the ogg vorbis comments
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"""
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try:
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filething.seek(0)
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except AttributeError:
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pass
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if isinstance(parent, mutagen.oggtheora.OggTheora):
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try:
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return Metadata(filething, kind=mutagen.oggvorbis.OggVorbis)
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except (ValueError, mutagen._util.MutagenError):
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raise
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pass
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def get(self, key, default=NODEFAULT):
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try:
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return self._get_from_self(key)
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except TagNotFound:
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if not self.fallback:
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if default != NODEFAULT:
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return default
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else:
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raise
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else:
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return self.fallback.get(key, default=default)
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except UnsupportedTag:
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if not self.fallback:
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raise
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else:
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return self.fallback.get(key, default=default)
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def all(self):
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"""
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Return a dict with all support metadata fields, if they are available
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"""
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final = {}
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for field in self._conf["fields"]:
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if field in ["pictures"]:
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continue
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value = self.get(field, None)
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if value is None:
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continue
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final[field] = str(value)
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return final
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def _get_from_self(self, key, default=NODEFAULT):
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try:
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field_conf = self._conf["fields"][key]
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except KeyError:
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raise UnsupportedTag("{} is not supported for this file format".format(key))
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real_key = field_conf.get("field", key)
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try:
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getter = field_conf.get("getter", self._conf["getter"])
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v = getter(self._file, real_key)
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except KeyError:
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if default == NODEFAULT:
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raise TagNotFound(real_key)
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return default
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converter = field_conf.get("to_application")
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if converter:
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v = converter(v)
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field = VALIDATION.get(key)
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if field:
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v = field.to_python(v)
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return v
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def get_picture(self, *picture_types):
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if not picture_types:
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raise ValueError("You need to request at least one picture type")
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ptypes = [
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getattr(mutagen.id3.PictureType, picture_type.upper())
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for picture_type in picture_types
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]
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try:
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pictures = self.get("pictures")
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except (UnsupportedTag, TagNotFound):
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return
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cleaner = self._conf.get("clean_pictures", lambda v: v)
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pictures = cleaner(pictures)
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if not pictures:
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return
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for ptype in ptypes:
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for p in pictures:
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if p["type"] == ptype:
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return p
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def __getitem__(self, key):
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return self.get(key)
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def __len__(self):
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return 1
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def __iter__(self):
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for field in self._conf["fields"]:
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yield field
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class ArtistField(serializers.Field):
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def __init__(self, *args, **kwargs):
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self.for_album = kwargs.pop("for_album", False)
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super().__init__(*args, **kwargs)
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def get_value(self, data):
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if self.for_album:
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keys = [
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("artists", "album_artist"),
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("names", "artists"),
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("mbids", "musicbrainz_albumartistid"),
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]
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else:
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keys = [
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("artists", "artists"),
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("names", "artist"),
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("mbids", "musicbrainz_artistid"),
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]
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final = {}
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for field, key in keys:
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final[field] = data.get(key, None)
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return final
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def to_internal_value(self, data):
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# we have multiple values that can be separated by various separators
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separators = [";", ","]
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# we get a list like that if tagged via musicbrainz
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# ae29aae4-abfb-4609-8f54-417b1f4d64cc; 3237b5a8-ae44-400c-aa6d-cea51f0b9074;
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raw_mbids = data["mbids"]
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used_separator = None
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mbids = [raw_mbids]
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if raw_mbids:
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if "/" in raw_mbids:
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# it's a featuring, we can't handle this now
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mbids = []
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else:
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for separator in separators:
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if separator in raw_mbids:
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used_separator = separator
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mbids = [m.strip() for m in raw_mbids.split(separator)]
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break
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# now, we split on artist names, using the same separator as the one used
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# by mbids, if any
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names = []
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if data.get("artists", None):
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for separator in separators:
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if separator in data["artists"]:
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names = [n.strip() for n in data["artists"].split(separator)]
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break
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# corner case: 'album artist' field with only one artist but multiple names in 'artits' field
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if (
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not names
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and data.get("names", None)
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and any(separator in data["names"] for separator in separators)
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):
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names = [n.strip() for n in data["names"].split(separators[0])]
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elif not names:
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names = [data["artists"]]
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elif used_separator and mbids:
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names = [n.strip() for n in data["names"].split(used_separator)]
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else:
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names = [data["names"]]
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final = []
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for i, name in enumerate(names):
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try:
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mbid = mbids[i]
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except IndexError:
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mbid = None
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artist = {"name": name, "mbid": mbid}
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final.append(artist)
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field = serializers.ListField(
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child=ArtistSerializer(strict=self.context.get("strict", True)),
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min_length=1,
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)
|
|
return field.to_internal_value(final)
|
|
|
|
|
|
class AlbumField(serializers.Field):
|
|
def get_value(self, data):
|
|
return data
|
|
|
|
def to_internal_value(self, data):
|
|
try:
|
|
title = data.get("album") or ""
|
|
except TagNotFound:
|
|
title = ""
|
|
|
|
title = title.strip() or UNKNOWN_ALBUM
|
|
final = {
|
|
"title": title,
|
|
"release_date": data.get("date", None),
|
|
"mbid": data.get("musicbrainz_albumid", None),
|
|
}
|
|
artists_field = ArtistField(for_album=True)
|
|
payload = artists_field.get_value(data)
|
|
try:
|
|
artists = artists_field.to_internal_value(payload)
|
|
except serializers.ValidationError as e:
|
|
artists = []
|
|
logger.debug("Ignoring validation error on album artists: %s", e)
|
|
album_serializer = AlbumSerializer(data=final)
|
|
album_serializer.is_valid(raise_exception=True)
|
|
album_serializer.validated_data["artists"] = artists
|
|
return album_serializer.validated_data
|
|
|
|
|
|
class CoverDataField(serializers.Field):
|
|
def get_value(self, data):
|
|
return data
|
|
|
|
def to_internal_value(self, data):
|
|
return data.get_picture("cover_front", "other")
|
|
|
|
|
|
class PermissiveDateField(serializers.CharField):
|
|
def to_internal_value(self, value):
|
|
if not value:
|
|
return None
|
|
value = super().to_internal_value(str(value))
|
|
ADDITIONAL_FORMATS = [
|
|
"%Y-%d-%m %H:%M", # deezer date format
|
|
"%Y-%W", # weird date format based on week number, see #718
|
|
]
|
|
|
|
for date_format in ADDITIONAL_FORMATS:
|
|
try:
|
|
parsed = datetime.datetime.strptime(value, date_format)
|
|
except ValueError:
|
|
continue
|
|
else:
|
|
return datetime.date(parsed.year, parsed.month, parsed.day)
|
|
|
|
try:
|
|
parsed = arrow.get(str(value))
|
|
return datetime.date(parsed.year, parsed.month, parsed.day)
|
|
except (arrow.parser.ParserError, ValueError):
|
|
pass
|
|
|
|
return None
|
|
|
|
|
|
def extract_tags_from_genre(string):
|
|
tags = []
|
|
delimiter = "@@@@@"
|
|
for d in [" - ", ",", ";", "/"]:
|
|
# Replace common tags separators by a custom delimiter
|
|
string = string.replace(d, delimiter)
|
|
|
|
# loop on the parts (splitting on our custom delimiter)
|
|
for tag in string.split(delimiter):
|
|
tag = tag.strip()
|
|
for d in ["-"]:
|
|
# preparation for replacement so that Pop-Rock becomes Pop Rock, then PopRock
|
|
# (step 1, step 2 happens below)
|
|
tag = tag.replace(d, " ")
|
|
if not tag:
|
|
continue
|
|
final_tag = ""
|
|
if not tags_models.TAG_REGEX.match(tag.replace(" ", "")):
|
|
# the string contains some non words chars ($, €, etc.), right now
|
|
# we simply skip such tags
|
|
continue
|
|
# concatenate the parts and uppercase them so that 'pop rock' becomes 'PopRock'
|
|
if len(tag.split(" ")) == 1:
|
|
# we append the tag "as is", because it doesn't contain any space
|
|
tags.append(tag)
|
|
continue
|
|
for part in tag.split(" "):
|
|
# the tag contains space, there's work to do to have consistent case
|
|
# 'pop rock' -> 'PopRock'
|
|
# (step 2)
|
|
if not part:
|
|
continue
|
|
final_tag += part[0].upper() + part[1:]
|
|
if final_tag:
|
|
tags.append(final_tag)
|
|
return tags
|
|
|
|
|
|
class TagsField(serializers.CharField):
|
|
def get_value(self, data):
|
|
return data
|
|
|
|
def to_internal_value(self, data):
|
|
try:
|
|
value = data.get("genre") or ""
|
|
except TagNotFound:
|
|
return []
|
|
value = super().to_internal_value(str(value))
|
|
|
|
return extract_tags_from_genre(value)
|
|
|
|
|
|
class MBIDField(serializers.UUIDField):
|
|
def __init__(self, *args, **kwargs):
|
|
kwargs.setdefault("allow_null", True)
|
|
kwargs.setdefault("required", False)
|
|
super().__init__(*args, **kwargs)
|
|
|
|
def to_internal_value(self, v):
|
|
if v in ["", None]:
|
|
return None
|
|
return super().to_internal_value(v)
|
|
|
|
|
|
class ArtistSerializer(serializers.Serializer):
|
|
name = serializers.CharField(required=False, allow_null=True, allow_blank=True)
|
|
mbid = MBIDField()
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
self.strict = kwargs.pop("strict", True)
|
|
super().__init__(*args, **kwargs)
|
|
|
|
def validate_name(self, v):
|
|
if self.strict and not v:
|
|
raise serializers.ValidationError("This field is required.")
|
|
return v
|
|
|
|
|
|
class AlbumSerializer(serializers.Serializer):
|
|
title = serializers.CharField(required=False, allow_null=True)
|
|
mbid = MBIDField()
|
|
release_date = PermissiveDateField(
|
|
required=False, allow_null=True, allow_blank=True
|
|
)
|
|
|
|
def validate_title(self, v):
|
|
if self.context.get("strict", True) and not v:
|
|
raise serializers.ValidationError("This field is required.")
|
|
return v
|
|
|
|
|
|
def get_valid_position(v):
|
|
if v <= 0:
|
|
v = 1
|
|
return v
|
|
|
|
|
|
class PositionField(serializers.CharField):
|
|
def to_internal_value(self, v):
|
|
v = super().to_internal_value(v)
|
|
if not v:
|
|
return v
|
|
|
|
try:
|
|
return get_valid_position(int(v))
|
|
except ValueError:
|
|
# maybe the position is of the form "1/4"
|
|
pass
|
|
|
|
try:
|
|
return get_valid_position(int(v.split("/")[0]))
|
|
except (ValueError, AttributeError, IndexError):
|
|
return
|
|
|
|
|
|
class DescriptionField(serializers.CharField):
|
|
def get_value(self, data):
|
|
return data
|
|
|
|
def to_internal_value(self, data):
|
|
try:
|
|
value = data.get("comment") or None
|
|
except TagNotFound:
|
|
return None
|
|
if not value:
|
|
return None
|
|
value = super().to_internal_value(value)
|
|
return {"text": value, "content_type": "text/plain"}
|
|
|
|
|
|
class TrackMetadataSerializer(serializers.Serializer):
|
|
title = serializers.CharField(required=False, allow_null=True)
|
|
position = PositionField(allow_blank=True, allow_null=True, required=False)
|
|
disc_number = PositionField(allow_blank=True, allow_null=True, required=False)
|
|
copyright = serializers.CharField(allow_blank=True, allow_null=True, required=False)
|
|
license = serializers.CharField(allow_blank=True, allow_null=True, required=False)
|
|
mbid = MBIDField()
|
|
tags = TagsField(allow_blank=True, allow_null=True, required=False)
|
|
description = DescriptionField(allow_null=True, allow_blank=True, required=False)
|
|
|
|
album = AlbumField()
|
|
artists = ArtistField()
|
|
cover_data = CoverDataField(required=False)
|
|
|
|
remove_blank_null_fields = [
|
|
"copyright",
|
|
"description",
|
|
"license",
|
|
"position",
|
|
"disc_number",
|
|
"mbid",
|
|
"tags",
|
|
]
|
|
|
|
def validate_title(self, v):
|
|
if self.context.get("strict", True) and not v:
|
|
raise serializers.ValidationError("This field is required.")
|
|
return v
|
|
|
|
def validate(self, validated_data):
|
|
validated_data = super().validate(validated_data)
|
|
for field in self.remove_blank_null_fields:
|
|
try:
|
|
v = validated_data[field]
|
|
except KeyError:
|
|
continue
|
|
if v in ["", None, []]:
|
|
validated_data.pop(field)
|
|
validated_data["album"]["cover_data"] = validated_data.pop("cover_data", None)
|
|
return validated_data
|
|
|
|
|
|
class FakeMetadata(Mapping):
|
|
def __init__(self, data, picture=None):
|
|
self.data = data
|
|
self.picture = None
|
|
|
|
def __getitem__(self, key):
|
|
return self.data[key]
|
|
|
|
def __len__(self):
|
|
return len(self.data)
|
|
|
|
def __iter__(self):
|
|
yield from self.data
|
|
|
|
def get_picture(self, *args):
|
|
return self.picture
|