import os
import string
import shutil
import tempfile
import textwrap
from codecs import ascii_encode
from ..utils import requireUnicode, chunkCopy, datePicker, b
from .. import core
from ..core import TXXX_ALBUM_TYPE, TXXX_ARTIST_ORIGIN, ALBUM_TYPE_IDS, ArtistOrigin
from .. import Error
from . import (ID3_ANY_VERSION, ID3_V1, ID3_V1_0, ID3_V1_1,
ID3_V2, ID3_V2_2, ID3_V2_3, ID3_V2_4, versionToString)
from . import DEFAULT_LANG
from . import Genre
from . import frames
from .headers import TagHeader, ExtendedTagHeader
from ..utils.log import getLogger
log = getLogger(__name__)
ID3_V1_COMMENT_DESC = "ID3v1.x Comment"
ID3_V1_MAX_TEXTLEN = 30
ID3_V1_STRIP_CHARS = string.whitespace.encode("latin1") + b"\x00"
DEFAULT_PADDING = 256
[docs]class TagException(Error):
pass
[docs]class Tag(core.Tag):
def __init__(self, **kwargs):
self.header = None
self.extended_header = None
self.frame_set = None
self._comments = None
self._images = None
self._lyrics = None
self._objects = None
self._privates = None
self._user_texts = None
self._unique_file_ids = None
self._user_urls = None
self._chapters = None
self._tocs = None
self._popularities = None
self.file_info = None
self.clear()
super().__init__(**kwargs)
[docs] def clear(self):
"""Reset all tag data."""
# ID3 tag header
self.header = TagHeader()
# Optional extended header in v2 tags.
self.extended_header = ExtendedTagHeader()
# Contains the tag's frames. ID3v1 fields are read and converted
# the the corresponding v2 frame.
self.frame_set = frames.FrameSet()
self._comments = CommentsAccessor(self.frame_set)
self._images = ImagesAccessor(self.frame_set)
self._lyrics = LyricsAccessor(self.frame_set)
self._objects = ObjectsAccessor(self.frame_set)
self._privates = PrivatesAccessor(self.frame_set)
self._user_texts = UserTextsAccessor(self.frame_set)
self._unique_file_ids = UniqueFileIdAccessor(self.frame_set)
self._user_urls = UserUrlsAccessor(self.frame_set)
self._chapters = ChaptersAccessor(self.frame_set)
self._tocs = TocAccessor(self.frame_set)
self._popularities = PopularitiesAccessor(self.frame_set)
self.file_info = None
[docs] def parse(self, fileobj, version=ID3_ANY_VERSION):
assert fileobj
self.clear()
version = version or ID3_ANY_VERSION
close_file = False
try:
filename = fileobj.name
except AttributeError:
if type(fileobj) is str:
filename = fileobj
fileobj = open(filename, "rb")
close_file = True
else:
raise ValueError("Invalid type: %s" % str(type(fileobj)))
self.file_info = FileInfo(filename)
try:
tag_found = False
padding = 0
# The & is for supporting the "meta" versions, any, etc.
if version[0] & 2:
tag_found, padding = self._loadV2Tag(fileobj)
if not tag_found and version[0] & 1:
tag_found, padding = self._loadV1Tag(fileobj)
if tag_found:
self.extended_header = None
if tag_found and self.isV2:
self.file_info.tag_size = (TagHeader.SIZE +
self.header.tag_size)
if tag_found:
self.file_info.tag_padding_size = padding
finally:
if close_file:
fileobj.close()
return tag_found
def _loadV2Tag(self, fp):
"""Returns (tag_found, padding_len)"""
# Look for a tag and if found load it.
if not self.header.parse(fp):
return False, 0
# Read the extended header if present.
if self.header.extended:
self.extended_header.parse(fp, self.header.version)
# Header is definitely there so at least one frame *must* follow.
padding = self.frame_set.parse(fp, self.header,
self.extended_header)
log.debug("Tag contains %d bytes of padding." % padding)
return True, padding
def _loadV1Tag(self, fp):
v1_enc = "latin1"
# Seek to the end of the file where all v1x tags are written.
# v1.x tags are 128 bytes min and max
fp.seek(0, 2)
if fp.tell() < 128:
return False, 0
fp.seek(-128, 2)
tag_data = fp.read(128)
if tag_data[0:3] != b"TAG":
return False, 0
log.debug("Located ID3 v1 tag")
# v1.0 is implied until a v1.1 feature is recognized.
self.version = ID3_V1_0
title = tag_data[3:33].strip(ID3_V1_STRIP_CHARS)
log.debug("Title: %s" % title)
if title:
self.title = str(title, v1_enc)
artist = tag_data[33:63].strip(ID3_V1_STRIP_CHARS)
log.debug("Artist: %s" % artist)
if artist:
self.artist = str(artist, v1_enc)
album = tag_data[63:93].strip(ID3_V1_STRIP_CHARS)
log.debug("Album: %s" % album)
if album:
self.album = str(album, v1_enc)
year = tag_data[93:97].strip(ID3_V1_STRIP_CHARS)
log.debug("Year: %s" % year)
try:
if year and int(year):
# Values here typically mean the year of release
self.release_date = int(year)
except ValueError:
# Bogus year strings.
log.warn("ID3v1.x tag contains invalid year: %s" % year)
pass
# Can't use ID3_V1_STRIP_CHARS here, since the final byte is numeric
comment = tag_data[97:127].rstrip(b"\x00")
# Track numbers stuffed in the comment field is what makes v1.1
if comment:
if (len(comment) >= 2 and
# Python the slices (the chars), so this is really
# comment[2] and comment[-1]
comment[-2:-1] == b"\x00" and comment[-1:] != b"\x00"):
log.debug("Track Num found, setting version to v1.1")
self.version = ID3_V1_1
track = comment[-1]
self.track_num = (track, None)
log.debug("Track: " + str(track))
comment = comment[:-2].strip(ID3_V1_STRIP_CHARS)
# There may only have been a track #
if comment:
log.debug(f"Comment: {comment}")
self.comments.set(str(comment, v1_enc), ID3_V1_COMMENT_DESC)
genre = ord(tag_data[127:128])
log.debug(f"Genre ID: {genre}")
try:
self.genre = genre
except ValueError as ex:
log.warning(ex)
self.genre = None
return True, 0
@property
def version(self):
return self.header.version
@version.setter
def version(self, v):
# Tag version changes required possible frame conversion
std, non = self._checkForConversions(v)
converted = []
if non:
converted = self._convertFrames(std, non, v)
if converted:
self.frame_set.clear()
for frame in (std + converted):
self.frame_set[frame.id] = frame
self.header.version = v
[docs] def isV1(self):
"""Test ID3 major version for v1.x"""
return self.header.major_version == 1
[docs] def isV2(self):
"""Test ID3 major version for v2.x"""
return self.header.major_version == 2
@requireUnicode(2)
def setTextFrame(self, fid: bytes, txt: str):
fid = b(fid, ascii_encode)
if not fid.startswith(b"T") or fid.startswith(b"TX"):
raise ValueError("Invalid frame-id for text frame")
if not txt and self.frame_set[fid]:
del self.frame_set[fid]
elif txt:
self.frame_set.setTextFrame(fid, txt)
# FIXME: is returning data not a Frame.
[docs] def getTextFrame(self, fid: bytes):
fid = b(fid, ascii_encode)
if not fid.startswith(b"T") or fid.startswith(b"TX"):
raise ValueError("Invalid frame-id for text frame")
f = self.frame_set[fid]
return f[0].text if f else None
@requireUnicode(1)
def _setArtist(self, val):
self.setTextFrame(frames.ARTIST_FID, val)
def _getArtist(self):
return self.getTextFrame(frames.ARTIST_FID)
@requireUnicode(1)
def _setAlbumArtist(self, val):
self.setTextFrame(frames.ALBUM_ARTIST_FID, val)
def _getAlbumArtist(self):
return self.getTextFrame(frames.ALBUM_ARTIST_FID)
@requireUnicode(1)
def _setComposer(self, val):
self.setTextFrame(frames.COMPOSER_FID, val)
def _getComposer(self):
return self.getTextFrame(frames.COMPOSER_FID)
@property
def composer(self):
return self._getComposer()
@composer.setter
def composer(self, v):
self._setComposer(v)
@requireUnicode(1)
def _setAlbum(self, val):
self.setTextFrame(frames.ALBUM_FID, val)
def _getAlbum(self):
return self.getTextFrame(frames.ALBUM_FID)
@requireUnicode(1)
def _setTitle(self, val):
self.setTextFrame(frames.TITLE_FID, val)
def _getTitle(self):
return self.getTextFrame(frames.TITLE_FID)
def _setTrackNum(self, val):
self._setNum(frames.TRACKNUM_FID, val)
def _getTrackNum(self):
return self._splitNum(frames.TRACKNUM_FID)
def _setDiscNum(self, val):
self._setNum(frames.DISCNUM_FID, val)
def _getDiscNum(self):
return self._splitNum(frames.DISCNUM_FID)
def _splitNum(self, fid):
f = self.frame_set[fid]
first, second = None, None
if f and f[0].text:
n = f[0].text.split('/')
try:
first = int(n[0])
second = int(n[1]) if len(n) == 2 else None
except ValueError as ex:
log.warning(str(ex))
return first, second
def _setNum(self, fid, val):
if type(val) is str:
val = int(val)
if type(val) is tuple:
if len(val) != 2:
raise ValueError("A 2-tuple of int values is required.")
else:
tn, tt = tuple([int(v) if v is not None else None for v in val])
elif type(val) is int:
tn, tt = val, None
elif val is None:
tn, tt = None, None
else:
raise TypeError("Invalid value, should int 2-tuple, int, or None: "
f"{val} ({val.__class__.__name__})")
n = (tn, tt)
if n[0] is None and n[1] is None:
if self.frame_set[fid]:
del self.frame_set[fid]
return
total_str = ""
if n[1] is not None:
if 0 <= n[1] <= 9:
total_str = "0" + str(n[1])
else:
total_str = str(n[1])
t = n[0] if n[0] else 0
track_str = str(t)
# Pad with zeros according to how large the total count is.
if len(track_str) == 1:
track_str = "0" + track_str
if len(track_str) < len(total_str):
track_str = ("0" * (len(total_str) - len(track_str))) + track_str
final_str = ""
if track_str and total_str:
final_str = "%s/%s" % (track_str, total_str)
elif track_str and not total_str:
final_str = track_str
self.frame_set.setTextFrame(fid, str(final_str))
@property
def comments(self):
return self._comments
def _getBpm(self):
from decimal import Decimal, ROUND_HALF_UP, InvalidOperation
bpm = None
if frames.BPM_FID in self.frame_set:
bpm_str = self.frame_set[frames.BPM_FID][0].text or "0"
try:
# Round floats since the spec says this is an integer. Python3
# changed how 'round' works, hence the using of decimal
bpm = int(Decimal(bpm_str).quantize(1, ROUND_HALF_UP))
except (InvalidOperation, ValueError) as ex:
log.warning(ex)
return bpm
def _setBpm(self, bpm):
assert(bpm >= 0)
self.setTextFrame(frames.BPM_FID, str(bpm))
bpm = property(_getBpm, _setBpm)
@property
def play_count(self):
if frames.PLAYCOUNT_FID in self.frame_set:
pc = self.frame_set[frames.PLAYCOUNT_FID][0]
return pc.count
else:
return None
@play_count.setter
def play_count(self, count):
if count is None:
del self.frame_set[frames.PLAYCOUNT_FID]
return
if count < 0:
raise ValueError("Invalid play count value: %d" % count)
if self.frame_set[frames.PLAYCOUNT_FID]:
pc = self.frame_set[frames.PLAYCOUNT_FID][0]
pc.count = count
else:
self.frame_set[frames.PLAYCOUNT_FID] = \
frames.PlayCountFrame(count=count)
def _getPublisher(self):
if frames.PUBLISHER_FID in self.frame_set:
pub = self.frame_set[frames.PUBLISHER_FID]
return pub[0].text
else:
return None
@requireUnicode(1)
def _setPublisher(self, p):
self.setTextFrame(frames.PUBLISHER_FID, p)
publisher = property(_getPublisher, _setPublisher)
@property
def cd_id(self):
if frames.CDID_FID in self.frame_set:
return self.frame_set[frames.CDID_FID][0].toc
else:
return None
@cd_id.setter
def cd_id(self, toc):
if len(toc) > 804:
raise ValueError("CD identifier table of contents can be no "
"greater than 804 bytes")
if self.frame_set[frames.CDID_FID]:
cdid = self.frame_set[frames.CDID_FID][0]
cdid.toc = bytes(toc)
else:
self.frame_set[frames.CDID_FID] = \
frames.MusicCDIdFrame(toc=toc)
@property
def images(self):
return self._images
def _getEncodingDate(self):
return self._getDate(b"TDEN")
def _setEncodingDate(self, date):
self._setDate(b"TDEN", date)
encoding_date = property(_getEncodingDate, _setEncodingDate)
@property
def best_release_date(self):
"""This method tries its best to return a date of some sort, amongst
alll the possible date frames. The order of preference for a release
date is 1) date of original release 2) date of this versions release
3) the recording date. Or None is returned."""
import warnings
warnings.warn("Use Tag.getBestDate() instead", DeprecationWarning,
stacklevel=2)
return (self.original_release_date or
self.release_date or
self.recording_date)
[docs] def getBestDate(self, prefer_recording_date=False):
"""This method returns a date of some sort, amongst all the possible
date frames. The order of preference is:
1) date of original release
2) date of this versions release
3) the recording date.
Unless ``prefer_recording_date`` is ``True`` in which case the order is
3, 1, 2.
``None`` will be returned if no dates are available."""
return datePicker(self, prefer_recording_date)
def _getReleaseDate(self):
if self.version == ID3_V2_3:
# v2.3 does NOT have a release date, only TORY, so that is what is returned
return self._getV23OriginalReleaseDate()
else:
return self._getDate(b"TDRL")
def _setReleaseDate(self, date):
if self.version == ID3_V2_3:
# v2.3 does NOT have a release date, only TORY, so that is what is set
self._setOriginalReleaseDate(date)
else:
self._setDate(b"TDRL", date)
release_date = property(_getReleaseDate, _setReleaseDate)
release_date.__doc__ = textwrap.dedent("""
The date the audio was released. This is NOT the original date the
work was released, instead it is more like the pressing or version of the
release. Original release date is usually what is intended but many programs
use this frame and/or don't distinguish between the two.
NOTE: ID3v2.3 only has original release date, so setting release_date is the same as
original_release_value; they both set TORY.
""")
def _getOrigReleaseDate(self):
if self.version == ID3_V2_3:
return self._getV23OriginalReleaseDate()
else:
return self._getDate(b"TDOR") or self._getV23OriginalReleaseDate()
_getOriginalReleaseDate = _getOrigReleaseDate
def _setOrigReleaseDate(self, date):
if self.version == ID3_V2_3:
self._setDate(b"TORY", date)
else:
self._setDate(b"TDOR", date)
_setOriginalReleaseDate = _setOrigReleaseDate
original_release_date = property(_getOrigReleaseDate, _setOrigReleaseDate)
original_release_date.__doc__ = textwrap.dedent("""
The date the work was originally released.
NOTE: ID3v2.3 only stores year. If the Date object is more precise it is store in `XDOR`, and
XDOR is preferred when acessing. The year-only date is stored in the standard `TORY` frame as
well.
""")
def _getRecordingDate(self):
if self.version == ID3_V2_3:
return self._getV23RecordingDate()
else:
return self._getDate(b"TDRC")
def _setRecordingDate(self, date):
if date in (None, ""):
for fid in (b"TDRC", b"TYER", b"TDAT", b"TIME"):
self._setDate(fid, None)
elif self.version == ID3_V2_4:
self._setDate(b"TDRC", date)
else:
self._setDate(b"TYER", str(date.year))
if None not in (date.month, date.day):
date_str = "%s%s" % (str(date.day).rjust(2, "0"),
str(date.month).rjust(2, "0"))
self._setDate(b"TDAT", date_str)
if None not in (date.hour, date.minute):
date_str = "%s%s" % (str(date.hour).rjust(2, "0"),
str(date.minute).rjust(2, "0"))
self._setDate(b"TIME", date_str)
recording_date = property(_getRecordingDate, _setRecordingDate)
"""The date of the recording. Many applications use this for release date
regardless of the fact that this value is rarely known, and release dates
are more correct."""
def _getV23RecordingDate(self):
# v2.3 TYER (yyyy), TDAT (DDMM), TIME (HHmm)
date = None
try:
date_str = b""
if b"TYER" in self.frame_set:
date_str = self.frame_set[b"TYER"][0].text.encode("latin1")
date = core.Date.parse(date_str)
if b"TDAT" in self.frame_set:
text = self.frame_set[b"TDAT"][0].text.encode("latin1")
date_str += b"-%s-%s" % (text[2:], text[:2])
date = core.Date.parse(date_str)
if b"TIME" in self.frame_set:
text = self.frame_set[b"TIME"][0].text.encode("latin1")
date_str += b"T%s:%s" % (text[:2], text[2:])
date = core.Date.parse(date_str)
except ValueError as ex:
log.warning("Invalid v2.3 TYER, TDAT, or TIME frame: %s" % ex)
return date
def _getV23OriginalReleaseDate(self):
date, date_str = None, None
try:
# XDOR is preferred since it can gave a full date, whereas TORY is year only.
for fid in (b"XDOR", b"TORY"):
if fid in self.frame_set:
date_str = self.frame_set[fid][0].text.encode("latin1")
break
if date_str:
date = core.Date.parse(date_str)
except ValueError as ex:
log.warning(f"Invalid v2.3 TORY/XDOR frame: {ex}")
return date
def _getTaggingDate(self):
return self._getDate(b"TDTG")
def _setTaggingDate(self, date):
self._setDate(b"TDTG", date)
tagging_date = property(_getTaggingDate, _setTaggingDate)
def _setDate(self, fid, date):
def removeFrame(frame_id):
try:
del self.frame_set[frame_id]
except KeyError:
pass
def setFrame(frame_id, date_val):
if frame_id in self.frame_set:
self.frame_set[frame_id][0].date = date_val
else:
self.frame_set[frame_id] = frames.DateFrame(frame_id, str(date_val))
assert fid in frames.DATE_FIDS or fid in frames.DEPRECATED_DATE_FIDS
if fid == b"XDOR":
raise ValueError("Set TORY with a full date (i.e. more than year)")
clean_fids = [fid]
if fid == b"TORY":
clean_fids.append(b"XDOR")
if date in (None, ""):
for cid in clean_fids:
removeFrame(cid)
return
# Special casing the conversion to DATE objects cuz TDAT and TIME won't
if fid not in (b"TDAT", b"TIME"):
# Convert to ISO format which is what FrameSet wants.
date_type = type(date)
if date_type is int:
# The integer year
date = core.Date(date)
elif date_type is str:
date = core.Date.parse(date)
elif not isinstance(date, core.Date):
raise TypeError(f"Invalid type: {date_type}")
if fid == b"TORY":
setFrame(fid, date.year)
if date.month:
setFrame(b"XDOR", date)
else:
removeFrame(b"XDOR")
else:
setFrame(fid, date)
def _getDate(self, fid):
if fid in (b"TORY", b"XDOR"):
return self._getV23OriginalReleaseDate()
if fid in self.frame_set:
if fid in (b"TYER", b"TDAT", b"TIME"):
if fid == b"TYER":
# Contain years only, date conversion can happen
return core.Date(int(self.frame_set[fid][0].text))
else:
return self.frame_set[fid][0].text
else:
return self.frame_set[fid][0].date
else:
return None
@property
def lyrics(self):
return self._lyrics
@property
def disc_num(self):
return self._getDiscNum()
@disc_num.setter
def disc_num(self, val):
self._setDiscNum(val)
@property
def objects(self):
return self._objects
@property
def privates(self):
return self._privates
@property
def popularities(self):
return self._popularities
def _getGenre(self, id3_std=True):
f = self.frame_set[frames.GENRE_FID]
if f and f[0].text:
try:
return Genre.parse(f[0].text, id3_std=id3_std)
except ValueError: # pragma: nocover
return None
else:
return None
def _setGenre(self, g, id3_std=True):
"""Set the genre.
Four types are accepted for the ``g`` argument.
A Genre object, an acceptable (see Genre.parse) genre string,
or an integer genre ID all will set the value. A value of None will
remove the genre."""
if g is None:
if self.frame_set[frames.GENRE_FID]:
del self.frame_set[frames.GENRE_FID]
return
if isinstance(g, str):
g = Genre.parse(g, id3_std=id3_std)
elif isinstance(g, int):
g = Genre(id=g)
elif not isinstance(g, Genre):
raise TypeError("Invalid genre data type: %s" % str(type(g)))
self.frame_set.setTextFrame(frames.GENRE_FID, f"{g.name if g.name else g.id}")
# genre property
genre = property(_getGenre, _setGenre)
def _getNonStdGenre(self):
return self._getGenre(id3_std=False)
def _setNonStdGenre(self, val):
self._setGenre(val, id3_std=False)
# non-standard genre (unparsed, unmapped) property
non_std_genre = property(_getNonStdGenre, _setNonStdGenre)
@property
def user_text_frames(self):
return self._user_texts
def _setUrlFrame(self, fid, url):
if fid not in frames.URL_FIDS:
raise ValueError("Invalid URL frame-id")
if self.frame_set[fid]:
if not url:
del self.frame_set[fid]
else:
self.frame_set[fid][0].url = url
else:
self.frame_set[fid] = frames.UrlFrame(fid, url)
def _getUrlFrame(self, fid):
if fid not in frames.URL_FIDS:
raise ValueError("Invalid URL frame-id")
f = self.frame_set[fid]
return f[0].url if f else None
@property
def commercial_url(self):
return self._getUrlFrame(frames.URL_COMMERCIAL_FID)
@commercial_url.setter
def commercial_url(self, url):
self._setUrlFrame(frames.URL_COMMERCIAL_FID, url)
@property
def copyright_url(self):
return self._getUrlFrame(frames.URL_COPYRIGHT_FID)
@copyright_url.setter
def copyright_url(self, url):
self._setUrlFrame(frames.URL_COPYRIGHT_FID, url)
@property
def audio_file_url(self):
return self._getUrlFrame(frames.URL_AUDIOFILE_FID)
@audio_file_url.setter
def audio_file_url(self, url):
self._setUrlFrame(frames.URL_AUDIOFILE_FID, url)
@property
def audio_source_url(self):
return self._getUrlFrame(frames.URL_AUDIOSRC_FID)
@audio_source_url.setter
def audio_source_url(self, url):
self._setUrlFrame(frames.URL_AUDIOSRC_FID, url)
@property
def artist_url(self):
return self._getUrlFrame(frames.URL_ARTIST_FID)
@artist_url.setter
def artist_url(self, url):
self._setUrlFrame(frames.URL_ARTIST_FID, url)
@property
def internet_radio_url(self):
return self._getUrlFrame(frames.URL_INET_RADIO_FID)
@internet_radio_url.setter
def internet_radio_url(self, url):
self._setUrlFrame(frames.URL_INET_RADIO_FID, url)
@property
def payment_url(self):
return self._getUrlFrame(frames.URL_PAYMENT_FID)
@payment_url.setter
def payment_url(self, url):
self._setUrlFrame(frames.URL_PAYMENT_FID, url)
@property
def publisher_url(self):
return self._getUrlFrame(frames.URL_PUBLISHER_FID)
@publisher_url.setter
def publisher_url(self, url):
self._setUrlFrame(frames.URL_PUBLISHER_FID, url)
@property
def user_url_frames(self):
return self._user_urls
@property
def unique_file_ids(self):
return self._unique_file_ids
@property
def terms_of_use(self):
if self.frame_set[frames.TOS_FID]:
return self.frame_set[frames.TOS_FID][0].text
@terms_of_use.setter
def terms_of_use(self, tos):
"""Set the terms of use text.
To specify a language (other than DEFAULT_LANG) code with the text pass
a tuple:
(text, lang)
Language codes are 3 *bytes* of ascii data.
"""
if isinstance(tos, tuple):
tos, lang = tos
else:
lang = DEFAULT_LANG
if self.frame_set[frames.TOS_FID]:
self.frame_set[frames.TOS_FID][0].text = tos
self.frame_set[frames.TOS_FID][0].lang = lang
else:
self.frame_set[frames.TOS_FID] = frames.TermsOfUseFrame(text=tos, lang=lang)
def _setCopyright(self, copyrt):
self.setTextFrame(frames.COPYRIGHT_FID, copyrt)
def _getCopyright(self):
if frames.COPYRIGHT_FID in self.frame_set:
return self.frame_set[frames.COPYRIGHT_FID][0].text
copyright = property(_getCopyright, _setCopyright)
def _setEncodedBy(self, enc):
self.setTextFrame(frames.ENCODED_BY_FID, enc)
def _getEncodedBy(self):
if frames.ENCODED_BY_FID in self.frame_set:
return self.frame_set[frames.ENCODED_BY_FID][0].text
encoded_by = property(_getEncodedBy, _setEncodedBy)
def _raiseIfReadonly(self):
if self.read_only:
raise RuntimeError("Tag is set read only.")
[docs] def save(self, filename=None, version=None, encoding=None, backup=False,
preserve_file_time=False, max_padding=None):
"""Save the tag. If ``filename`` is not give the value from the
``file_info`` member is used, or a ``TagException`` is raised. The
``version`` argument can be used to select an ID3 version other than
the version read. ``Select text encoding with ``encoding`` or use
the existing (or default) encoding. If ``backup`` is True the orignal
file is preserved; likewise if ``preserve_file_time`` is True the
file´s modification/access times are not updated.
"""
self._raiseIfReadonly()
if not (filename or self.file_info):
raise TagException("No file")
elif filename:
self.file_info = FileInfo(filename)
version = version if version else self.version
if version == ID3_V2_2:
raise NotImplementedError("Unable to write ID3 v2.2")
self.version = version
if backup and os.path.isfile(self.file_info.name):
backup_name = "%s.%s" % (self.file_info.name, "orig")
i = 1
while os.path.isfile(backup_name):
backup_name = "%s.%s.%d" % (self.file_info.name, "orig", i)
i += 1
shutil.copyfile(self.file_info.name, backup_name)
if version[0] == 1:
self._saveV1Tag(version)
elif version[0] == 2:
self._saveV2Tag(version, encoding, max_padding)
else:
assert(not "Version bug: %s" % str(version))
if preserve_file_time and None not in (self.file_info.atime,
self.file_info.mtime):
self.file_info.touch((self.file_info.atime, self.file_info.mtime))
else:
self.file_info.initStatTimes()
def _saveV1Tag(self, version):
self._raiseIfReadonly()
assert(version[0] == 1)
def pack(s, n):
assert(type(s) is bytes)
if len(s) > n:
log.warning(f"ID3 v1.x text value truncated to length {n}")
return s.ljust(n, b'\x00')[:n]
def encode(s):
return s.encode("latin_1", "replace")
# Build tag buffer.
tag = b"TAG"
tag += pack(encode(self.title) if self.title else b"", ID3_V1_MAX_TEXTLEN)
tag += pack(encode(self.artist) if self.artist else b"", ID3_V1_MAX_TEXTLEN)
tag += pack(encode(self.album) if self.album else b"", ID3_V1_MAX_TEXTLEN)
release_date = self.getBestDate()
year = str(release_date.year).encode("ascii") if release_date else b""
tag += pack(year, 4)
cmt = ""
for c in self.comments:
if c.description == ID3_V1_COMMENT_DESC:
cmt = c.text
# We prefer this one over ""
break
elif c.description == "":
cmt = c.text
# Keep searching in case we find the description eyeD3 uses.
cmt = pack(encode(cmt), ID3_V1_MAX_TEXTLEN)
if version != ID3_V1_0:
track = self.track_num[0]
if track is not None:
cmt = cmt[0:28] + b"\x00" + bytes([int(track) & 0xff])
tag += cmt
if not self.genre or self.genre.id is None:
genre = 12 # Other
else:
genre = self.genre.id
tag += bytes([genre & 0xff])
assert len(tag) == 128
mode = "rb+" if os.path.isfile(self.file_info.name) else "w+b"
with open(self.file_info.name, mode) as tag_file:
# Write the tag over top an original or append it.
try:
tag_file.seek(-128, 2)
if tag_file.read(3) == b"TAG":
tag_file.seek(-128, 2)
else:
tag_file.seek(0, 2)
except IOError:
# File is smaller than 128 bytes.
tag_file.seek(0, 2)
tag_file.write(tag)
tag_file.flush()
def _checkForConversions(self, target_version):
"""Check the current frame set against `target_version` for frames
requiring conversion.
:param: The version the frames need to map to.
:returns: A 2-tuple where the first element is a list of frames that
are accepted for `target_version`, and the second a list of frames
requiring conversion.
"""
std_frames = []
non_std_frames = []
for f in self.frame_set.getAllFrames():
try:
_, fversion, _ = frames.ID3_FRAMES[f.id]
if fversion in (target_version, ID3_V2):
std_frames.append(f)
else:
non_std_frames.append(f)
except KeyError:
# Not a standard frame (ID3_FRAMES)
try:
_, fversion, _ = frames.NONSTANDARD_ID3_FRAMES[f.id]
# but is it one we can handle.
if fversion in (target_version, ID3_V2):
std_frames.append(f)
else:
non_std_frames.append(f)
except KeyError:
# Don't know anything about this pass it on for the error
# check there.
non_std_frames.append(f)
return std_frames, non_std_frames
def _render(self, version, curr_tag_size, max_padding_size):
converted_frames = []
std_frames, non_std_frames = self._checkForConversions(version)
if non_std_frames:
converted_frames = self._convertFrames(std_frames, non_std_frames,
version)
# Render all frames first so the data size is known for the tag header.
frame_data = b""
for f in std_frames + converted_frames:
frame_header = frames.FrameHeader(f.id, version)
if f.header:
frame_header.copyFlags(f.header)
f.header = frame_header
log.debug("Rendering frame: %s" % frame_header.id)
raw_frame = f.render()
log.debug("Rendered %d bytes" % len(raw_frame))
frame_data += raw_frame
log.debug("Rendered %d total frame bytes" % len(frame_data))
# eyeD3 never writes unsync'd data
self.header.unsync = False
pending_size = TagHeader.SIZE + len(frame_data)
if self.header.extended:
# Using dummy data and padding, the actual size of this header
# will be the same regardless, it's more about the flag bits
tmp_ext_header_data = self.extended_header.render(version,
b"\x00", 0)
pending_size += len(tmp_ext_header_data)
if pending_size > curr_tag_size:
# current tag (minus padding) larger than the current (plus padding)
padding_size = DEFAULT_PADDING
rewrite_required = True
else:
padding_size = curr_tag_size - pending_size
if max_padding_size is not None and padding_size > max_padding_size:
padding_size = min(DEFAULT_PADDING, max_padding_size)
rewrite_required = True
else:
rewrite_required = False
assert(padding_size >= 0)
log.debug("Using %d bytes of padding" % padding_size)
# Extended header
ext_header_data = b""
if self.header.extended:
log.debug("Rendering extended header")
ext_header_data += self.extended_header.render(self.header.version,
frame_data,
padding_size)
# Render the tag header.
total_size = pending_size + padding_size
log.debug("Rendering %s tag header with size %d" %
(versionToString(version),
total_size - TagHeader.SIZE))
header_data = self.header.render(total_size - TagHeader.SIZE)
# Assemble the entire tag.
tag_data = (header_data +
ext_header_data +
frame_data)
assert(len(tag_data) == (total_size - padding_size))
return rewrite_required, tag_data, b"\x00" * padding_size
def _saveV2Tag(self, version, encoding, max_padding):
self._raiseIfReadonly()
assert(version[0] == 2 and version[1] != 2)
log.debug("Rendering tag version: %s" % versionToString(version))
file_exists = os.path.exists(self.file_info.name)
if encoding:
# Any invalid encoding is going to get coersed to a valid value
# when the frame is rendered.
for f in self.frame_set.getAllFrames():
f.encoding = frames.stringToEncoding(encoding)
curr_tag_size = 0
if file_exists:
# We may be converting from 1.x to 2.x so we need to find any
# current v2.x tag otherwise we're gonna hork the file.
# This also resets all offsets, state, etc. and makes me feel safe.
tmp_tag = Tag()
if tmp_tag.parse(self.file_info.name, ID3_V2):
log.debug("Found current v2.x tag:")
curr_tag_size = tmp_tag.file_info.tag_size
log.debug("Current tag size: %d" % curr_tag_size)
rewrite_required, tag_data, padding = self._render(version,
curr_tag_size,
max_padding)
log.debug("Writing %d bytes of tag data and %d bytes of "
"padding" % (len(tag_data), len(padding)))
if rewrite_required:
# Open tmp file
with tempfile.NamedTemporaryFile("wb", delete=False) \
as tmp_file:
tmp_file.write(tag_data + padding)
# Copy audio data in chunks
with open(self.file_info.name, "rb") as tag_file:
if curr_tag_size != 0:
seek_point = curr_tag_size
else:
seek_point = 0
log.debug("Seeking to beginning of audio data, "
"byte %d (%x)" % (seek_point, seek_point))
tag_file.seek(seek_point)
chunkCopy(tag_file, tmp_file)
tmp_file.flush()
# Move tmp to orig.
shutil.copyfile(tmp_file.name, self.file_info.name)
os.unlink(tmp_file.name)
else:
with open(self.file_info.name, "r+b") as tag_file:
tag_file.write(tag_data + padding)
else:
_, tag_data, padding = self._render(version, 0, None)
with open(self.file_info.name, "wb") as tag_file:
tag_file.write(tag_data + padding)
log.debug("Tag write complete. Updating FileInfo state.")
self.file_info.tag_size = len(tag_data) + len(padding)
def _convertFrames(self, std_frames, convert_list, version):
"""Maps frame incompatibilities between ID3 v2.3 and v2.4.
The items in ``std_frames`` need no conversion, but the list/frames
may be edited if necessary (e.g. a converted frame replaces a frame
in the list). The items in ``convert_list`` are the frames to convert
and return. The ``version`` is the target ID3 version."""
from . import versionToString
from .frames import (DATE_FIDS, DEPRECATED_DATE_FIDS,
DateFrame, TextFrame)
converted_frames = []
flist = list(convert_list)
# Date frame conversions.
date_frames = {}
for f in flist:
if version == ID3_V2_4:
if f.id in DEPRECATED_DATE_FIDS:
date_frames[f.id] = f
else:
if f.id in DATE_FIDS:
date_frames[f.id] = f
if date_frames:
def fidHandled(_fid):
# A duplicate text frame (illegal ID3 but oft seen) may exist. The date_frames dict
# will have one, but the flist has multiple, hence the loop.
for _frame in list(flist):
if _frame.id == _fid:
flist.remove(_frame)
del date_frames[_fid]
if version == ID3_V2_4:
if b"TORY" in date_frames or b"XDOR" in date_frames:
# XDOR -> TDOR (full date)
# TORY -> TDOR (year only)
date = self._getV23OriginalReleaseDate()
if date:
converted_frames.append(DateFrame(b"TDOR", date))
for fid in (b"TORY", b"XDOR"):
if fid in flist:
fidHandled(fid)
# TYER, TDAT, TIME -> TDRC
if (b"TYER" in date_frames or b"TDAT" in date_frames or b"TIME" in date_frames):
date = self._getV23RecordingDate()
if date:
converted_frames.append(DateFrame(b"TDRC", date))
for fid in [b"TYER", b"TDAT", b"TIME"]:
if fid in date_frames:
fidHandled(fid)
elif version == ID3_V2_3:
if b"TDOR" in date_frames:
date = date_frames[b"TDOR"].date
if date:
# TORY is year only
converted_frames.append(DateFrame(b"TORY", str(date.year)))
if date and date.month:
converted_frames.append(DateFrame(b"XDOR", str(date)))
fidHandled(b"TDOR")
if b"TDRC" in date_frames:
date = date_frames[b"TDRC"].date
if date:
converted_frames.append(DateFrame(b"TYER", str(date.year)))
if None not in (date.month, date.day):
date_str = "%s%s" %\
(str(date.day).rjust(2, "0"),
str(date.month).rjust(2, "0"))
converted_frames.append(TextFrame(b"TDAT",
date_str))
if None not in (date.hour, date.minute):
date_str = "%s%s" %\
(str(date.hour).rjust(2, "0"),
str(date.minute).rjust(2, "0"))
converted_frames.append(TextFrame(b"TIME",
date_str))
fidHandled(b"TDRC")
if b"TDRL" in date_frames:
# TDRL -> Nothing
log.warning("TDRL value dropped.")
fidHandled(b"TDRL")
# All other date frames have no conversion
for fid in date_frames:
log.warning(f"{str(fid, 'ascii')} frame being dropped due to conversion to "
f"{versionToString(version)}")
flist.remove(date_frames[fid])
# Convert sort order frames 2.3 (XSO*) <-> 2.4 (TSO*)
prefix = b"X" if version == ID3_V2_4 else b"T"
fids = [prefix + suffix for suffix in [b"SOA", b"SOP", b"SOT"]]
soframes = [f for f in flist if f.id in fids]
for frame in soframes:
frame.id = (b"X" if prefix == b"T" else b"T") + frame.id[1:]
flist.remove(frame)
converted_frames.append(frame)
# TSIZ (v2.3) are completely deprecated, remove them
if version == ID3_V2_4:
flist = [f for f in flist if f.id != b"TSIZ"]
# TSST (v2.4) --> TIT3 (2.3)
if version == ID3_V2_3 and b"TSST" in [f.id for f in flist]:
tsst_frame = [f for f in flist if f.id == b"TSST"][0]
flist.remove(tsst_frame)
tsst_frame = frames.UserTextFrame(
description="Subtitle (converted)", text=tsst_frame.text)
converted_frames.append(tsst_frame)
# RVAD (v2.3) --> RVA2* (2.4)
if version == ID3_V2_4 and b"RVAD" in [f.id for f in flist]:
rvad = [f for f in flist if f.id == b"RVAD"][0]
for rva2 in rvad.toV24():
converted_frames.append(rva2)
flist.remove(rvad)
# RVA2* (v2.4) --> RVAD (2.3)
elif version == ID3_V2_3 and b"RVA2" in [f.id for f in flist]:
adj = frames.RelVolAdjFrameV23.VolumeAdjustments()
for rva2 in [f for f in flist if f.id == b"RVA2"]:
adj.setChannelAdj(rva2.channel_type, rva2.adjustment * 512)
adj.setChannelPeak(rva2.channel_type, rva2.peak)
flist.remove(rva2)
rvad = frames.RelVolAdjFrameV23()
rvad.adjustments = adj
converted_frames.append(rvad)
# Raise an error for frames that could not be converted.
if len(flist) != 0:
unconverted = ", ".join([f.id.decode("ascii") for f in flist])
if version[0] != 1:
raise TagException("Unable to convert the following frames to "
f"version {versionToString(version)}: {unconverted}")
# Some frames in converted_frames may replace/edit frames in std_frames.
for cframe in converted_frames:
for sframe in std_frames:
if cframe.id == sframe.id:
std_frames.remove(sframe)
return converted_frames
[docs] @staticmethod
def remove(filename, version=ID3_ANY_VERSION, preserve_file_time=False):
tag = None
retval = False
if version[0] & ID3_V1[0]:
# ID3 v1.x
tag = Tag()
with open(filename, "r+b") as tag_file:
found = tag.parse(tag_file, ID3_V1)
if found:
tag_file.seek(-128, 2)
log.debug("Removing ID3 v1.x Tag")
tag_file.truncate()
retval |= True
if version[0] & ID3_V2[0]:
tag = Tag()
with open(filename, "rb") as tag_file:
found = tag.parse(tag_file, ID3_V2)
if found:
log.debug("Removing ID3 %s tag" %
versionToString(tag.version))
tag_file.seek(tag.file_info.tag_size)
# Open tmp file
with tempfile.NamedTemporaryFile("wb", delete=False) \
as tmp_file:
chunkCopy(tag_file, tmp_file)
# Move tmp to orig
shutil.copyfile(tmp_file.name, filename)
os.unlink(tmp_file.name)
retval |= True
if preserve_file_time and retval and None not in (tag.file_info.atime,
tag.file_info.mtime):
tag.file_info.touch((tag.file_info.atime, tag.file_info.mtime))
return retval
@property
def chapters(self):
return self._chapters
@property
def table_of_contents(self):
return self._tocs
@property
def album_type(self):
if TXXX_ALBUM_TYPE in self.user_text_frames:
return self.user_text_frames.get(TXXX_ALBUM_TYPE).text
else:
return None
@album_type.setter
def album_type(self, t):
if not t:
self.user_text_frames.remove(TXXX_ALBUM_TYPE)
elif t in ALBUM_TYPE_IDS:
self.user_text_frames.set(t, TXXX_ALBUM_TYPE)
else:
raise ValueError("Invalid album_type: %s" % t)
@property
def artist_origin(self):
"""Returns None or a `ArtistOrigin` dataclass: (city, state, country) Any may be ``None``.
"""
if TXXX_ARTIST_ORIGIN not in self.user_text_frames:
return None
origin = self.user_text_frames.get(TXXX_ARTIST_ORIGIN).text
vals = origin.split('\t')
vals.extend([None] * (3 - len(vals)))
vals = [None if not v else v for v in vals]
return ArtistOrigin(*vals)
@artist_origin.setter
def artist_origin(self, origin: ArtistOrigin):
if origin is None or origin == (None, None, None):
self.user_text_frames.remove(TXXX_ARTIST_ORIGIN)
else:
self.user_text_frames.set(origin.id3Encode(), TXXX_ARTIST_ORIGIN)
[docs] def frameiter(self, fids=None):
"""A iterator for tag frames. If ``fids`` is passed it must be a list
of frame IDs to filter and return."""
fids = fids or []
fids = [(b(f, ascii_encode) if isinstance(f, str) else f) for f in fids]
for f in self.frame_set.getAllFrames():
if not fids or f.id in fids:
yield f
def _getOrigArtist(self):
return self.getTextFrame(frames.ORIG_ARTIST_FID)
def _setOrigArtist(self, name):
self.setTextFrame(frames.ORIG_ARTIST_FID, name)
@property
def original_artist(self):
return self._getOrigArtist()
@original_artist.setter
def original_artist(self, name):
self._setOrigArtist(name)
[docs]class FileInfo:
"""
This class is for storing information about a parsed file. It contains info
such as the filename, original tag size, and amount of padding; all of which
can make rewriting faster.
"""
def __init__(self, file_name, tagsz=0, tpadd=0):
from .. import LOCAL_FS_ENCODING
if type(file_name) is str:
self.name = file_name
else:
try:
self.name = str(file_name, LOCAL_FS_ENCODING)
except UnicodeDecodeError:
# Work around the local encoding not matching that of a mounted
# filesystem
log.warning("Mismatched file system encoding for file '%s'" %
repr(file_name))
self.name = file_name
self.tag_size = tagsz or 0 # This includes the padding byte count.
self.tag_padding_size = tpadd or 0
self.atime, self.mtime = None, None
self.initStatTimes()
[docs] def initStatTimes(self):
try:
s = os.stat(self.name)
except OSError:
self.atime, self.mtime = None, None
else:
self.atime, self.mtime = s.st_atime, s.st_mtime
[docs] def touch(self, times):
"""times is a 2-tuple of (atime, mtime)."""
os.utime(self.name, times)
self.initStatTimes()
[docs]class AccessorBase:
def __init__(self, fid, fs, match_func=None):
self._fid = fid
self._fs = fs
self._match_func = match_func
def __iter__(self):
for f in self._fs[self._fid] or []:
yield f
def __len__(self):
return len(self._fs[self._fid] or [])
def __getitem__(self, i):
frames = self._fs[self._fid]
if not frames:
raise IndexError("list index out of range")
return frames[i]
[docs] def get(self, *args, **kwargs):
for frame in self._fs[self._fid] or []:
if self._match_func(frame, *args, **kwargs):
return frame
return None
[docs] def remove(self, *args, **kwargs):
"""Returns the removed item or ``None`` if not found."""
fid_frames = self._fs[self._fid] or []
for frame in fid_frames:
if self._match_func(frame, *args, **kwargs):
fid_frames.remove(frame)
return frame
return None
[docs]class DltAccessor(AccessorBase):
"""Access matching tag frames by "description" and/or "lang" values."""
def __init__(self, FrameClass, fid, fs):
def match_func(frame, description, lang=DEFAULT_LANG):
return (frame.description == description and
frame.lang == (lang if isinstance(lang, bytes)
else lang.encode("ascii")))
super().__init__(fid, fs, match_func)
self.FrameClass = FrameClass
@requireUnicode(1, 2)
def set(self, text, description="", lang=DEFAULT_LANG):
lang = lang or DEFAULT_LANG
for f in self._fs[self._fid] or []:
if f.description == description and f.lang == lang:
# Exists, update text
f.text = text
return f
new_frame = self.FrameClass(description=description, lang=lang,
text=text)
self._fs[self._fid] = new_frame
return new_frame
@requireUnicode(1)
def remove(self, description, lang=DEFAULT_LANG):
return super().remove(description, lang=lang or DEFAULT_LANG)
@requireUnicode(1)
def get(self, description, lang=DEFAULT_LANG):
return super().get(description, lang=lang or DEFAULT_LANG)
[docs]class LyricsAccessor(DltAccessor):
def __init__(self, fs):
super().__init__(frames.LyricsFrame, frames.LYRICS_FID, fs)
[docs]class ImagesAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, description):
return frame.description == description
super().__init__(frames.IMAGE_FID, fs, match_func)
@requireUnicode("description")
def set(self, type_, img_data, mime_type, description="", img_url=None):
"""Add an image of ``type_`` (a type constant from ImageFrame).
The ``img_data`` is either bytes or ``None``. In the latter case
``img_url`` MUST be the URL to the image. In this case ``mime_type``
is ignored and "-->" is used to signal this as a link and not data
(per the ID3 spec)."""
img_url = b(img_url) if img_url else None
if not img_data and not img_url:
raise ValueError("img_url MUST not be none when no image data")
mime_type = mime_type if img_data else frames.ImageFrame.URL_MIME_TYPE
mime_type = b(mime_type)
images = self._fs[frames.IMAGE_FID] or []
for img in images:
if img.description == description:
# update
if not img_data:
img.image_url = img_url
img.image_data = None
img.mime_type = frames.ImageFrame.URL_MIME_TYPE
else:
img.image_url = None
img.image_data = img_data
img.mime_type = mime_type
img.picture_type = type_
return img
img_frame = frames.ImageFrame(description=description,
image_data=img_data,
image_url=img_url,
mime_type=mime_type,
picture_type=type_)
self._fs[frames.IMAGE_FID] = img_frame
return img_frame
@requireUnicode(1)
def remove(self, description):
return super().remove(description)
@requireUnicode(1)
def get(self, description):
return super().get(description)
[docs]class ObjectsAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, description):
return frame.description == description
super().__init__(frames.OBJECT_FID, fs, match_func)
@requireUnicode("description", "filename")
def set(self, data, mime_type, description="", filename=""):
objects = self._fs[frames.OBJECT_FID] or []
for obj in objects:
if obj.description == description:
# update
obj.object_data = data
obj.mime_type = mime_type
obj.filename = filename
return obj
obj_frame = frames.ObjectFrame(description=description,
filename=filename,
object_data=data,
mime_type=mime_type)
self._fs[frames.OBJECT_FID] = obj_frame
return obj_frame
@requireUnicode(1)
def remove(self, description):
return super().remove(description)
@requireUnicode(1)
def get(self, description):
return super().get(description)
[docs]class PrivatesAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, owner_id):
return frame.owner_id == owner_id
super().__init__(frames.PRIVATE_FID, fs, match_func)
[docs] def set(self, data, owner_id):
priv_frames = self._fs[frames.PRIVATE_FID] or []
for f in priv_frames:
if f.owner_id == owner_id:
# update
f.owner_data = data
return f
priv_frame = frames.PrivateFrame(owner_id=owner_id,
owner_data=data)
self._fs[frames.PRIVATE_FID] = priv_frame
return priv_frame
[docs] def remove(self, owner_id):
return super().remove(owner_id)
[docs] def get(self, owner_id):
return super().get(owner_id)
[docs]class UserTextsAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, description):
return frame.description == description
super().__init__(frames.USERTEXT_FID, fs, match_func)
@requireUnicode(1, "description")
def set(self, text, description=""):
flist = self._fs[frames.USERTEXT_FID] or []
for utf in flist:
if utf.description == description:
# update
utf.text = text
return utf
utf = frames.UserTextFrame(description=description,
text=text)
self._fs[frames.USERTEXT_FID] = utf
return utf
@requireUnicode(1)
def remove(self, description):
return super().remove(description)
@requireUnicode(1)
def get(self, description):
return super().get(description)
@requireUnicode(1)
def __contains__(self, description):
return bool(self.get(description))
[docs]class UniqueFileIdAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, owner_id):
return frame.owner_id == owner_id
super().__init__(frames.UNIQUE_FILE_ID_FID, fs, match_func)
[docs] def set(self, data, owner_id):
data, owner_id = b(data), b(owner_id)
if len(data) > 64:
raise TagException("UFID data must be 64 bytes or less")
flist = self._fs[frames.UNIQUE_FILE_ID_FID] or []
for f in flist:
if f.owner_id == owner_id:
# update
f.uniq_id = data
return f
uniq_id_frame = frames.UniqueFileIDFrame(owner_id=owner_id,
uniq_id=data)
self._fs[frames.UNIQUE_FILE_ID_FID] = uniq_id_frame
return uniq_id_frame
[docs] def remove(self, owner_id):
owner_id = b(owner_id)
return super().remove(owner_id)
[docs] def get(self, owner_id):
owner_id = b(owner_id)
return super().get(owner_id)
[docs]class UserUrlsAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, description):
return frame.description == description
super().__init__(frames.USERURL_FID, fs, match_func)
@requireUnicode("description")
def set(self, url, description=""):
flist = self._fs[frames.USERURL_FID] or []
for uuf in flist:
if uuf.description == description:
# update
uuf.url = url
return uuf
uuf = frames.UserUrlFrame(description=description, url=url)
self._fs[frames.USERURL_FID] = uuf
return uuf
@requireUnicode(1)
def remove(self, description):
return super().remove(description)
@requireUnicode(1)
def get(self, description):
return super().get(description)
[docs]class PopularitiesAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, email):
return frame.email == email
super().__init__(frames.POPULARITY_FID, fs, match_func)
[docs] def set(self, email, rating, play_count):
flist = self._fs[frames.POPULARITY_FID] or []
for popm in flist:
if popm.email == email:
# update
popm.rating = rating
popm.count = play_count
return popm
popm = frames.PopularityFrame(email=email, rating=rating,
count=play_count)
self._fs[frames.POPULARITY_FID] = popm
return popm
[docs] def remove(self, email):
return super().remove(email)
[docs] def get(self, email):
return super().get(email)
[docs]class ChaptersAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, element_id):
return frame.element_id == element_id
super().__init__(frames.CHAPTER_FID, fs, match_func)
[docs] def set(self, element_id, times, offsets=(None, None), sub_frames=None):
flist = self._fs[frames.CHAPTER_FID] or []
for chap in flist:
if chap.element_id == element_id:
# update
chap.times, chap.offsets = times, offsets
if sub_frames:
chap.sub_frames = sub_frames
return chap
chap = frames.ChapterFrame(element_id=element_id,
times=times, offsets=offsets,
sub_frames=sub_frames)
self._fs[frames.CHAPTER_FID] = chap
return chap
[docs] def remove(self, element_id):
return super().remove(element_id)
[docs] def get(self, element_id):
return super().get(element_id)
def __getitem__(self, elem_id):
"""Overiding the index based __getitem__ for one indexed with chapter
element IDs. These are stored in the tag's table of contents frames."""
for chapter in (self._fs[frames.CHAPTER_FID] or []):
if chapter.element_id == elem_id:
return chapter
raise IndexError("chapter '%s' not found" % elem_id)
[docs]class TocAccessor(AccessorBase):
def __init__(self, fs):
def match_func(frame, element_id):
return frame.element_id == element_id
super().__init__(frames.TOC_FID, fs, match_func)
def __iter__(self):
tocs = list(self._fs[self._fid] or [])
for toc_frame in tocs:
# Find and put top level at the front of the list
if toc_frame.toplevel:
tocs.remove(toc_frame)
tocs.insert(0, toc_frame)
break
for toc in tocs:
yield toc
@requireUnicode("description")
def set(self, element_id, toplevel=False, ordered=True, child_ids=None,
description=""):
flist = self._fs[frames.TOC_FID] or []
# Enforce one top-level
if toplevel:
for toc in flist:
if toc.toplevel:
raise ValueError("There may only be one top-level "
"table of contents. Toc '%s' is current "
"top-level." % toc.element_id)
for toc in flist:
if toc.element_id == element_id:
# update
toc.toplevel = toplevel
toc.ordered = ordered
toc.child_ids = child_ids
toc.description = description
return toc
toc = frames.TocFrame(element_id=element_id, toplevel=toplevel,
ordered=ordered, child_ids=child_ids,
description=description)
self._fs[frames.TOC_FID] = toc
return toc
[docs] def remove(self, element_id):
return super().remove(element_id)
[docs] def get(self, element_id):
return super().get(element_id)
def __getitem__(self, elem_id):
"""Overiding the index based __getitem__ for one indexed with table
of contents element IDs."""
for toc in (self._fs[frames.TOC_FID] or []):
if toc.element_id == elem_id:
return toc
raise IndexError("toc '%s' not found" % elem_id)
[docs]class TagTemplate(string.Template):
idpattern = r'[_a-z][_a-z0-9:]*'
def __init__(self, pattern, path_friendly="-", dotted_dates=False):
super().__init__(pattern)
if type(path_friendly) is bool and path_friendly:
# Previous versions used boolean values, convert old default to new
path_friendly = "-"
self._path_friendly = path_friendly
self._dotted_dates = dotted_dates
[docs] def substitute(self, tag, zeropad=True):
mapping = self._makeMapping(tag, zeropad)
# Helper function for .sub()
def convert(mo):
named = mo.group('named')
if named is not None:
try:
if type(mapping[named]) is tuple:
func, args = mapping[named][0], mapping[named][1:]
return '%s' % func(tag, named, *args)
# We use this idiom instead of str() because the latter
# will fail if val is a Unicode containing non-ASCII
return '%s' % (mapping[named],)
except KeyError:
return self.delimiter + named
braced = mo.group('braced')
if braced is not None:
try:
if type(mapping[braced]) is tuple:
func, args = mapping[braced][0], mapping[braced][1:]
return '%s' % func(tag, braced, *args)
return '%s' % (mapping[braced],)
except KeyError:
return self.delimiter + '{' + braced + '}'
if mo.group('escaped') is not None:
return self.delimiter
if mo.group('invalid') is not None:
return self.delimiter
raise ValueError('Unrecognized named group in pattern',
self.pattern)
name = self.pattern.sub(convert, self.template)
if self._path_friendly:
name = name.replace("/", self._path_friendly)
return name
safe_substitute = substitute
def _dates(self, tag, param):
if param.startswith("release_"):
date = tag.release_date
elif param.startswith("recording_"):
date = tag.recording_date
elif param.startswith("original_release_"):
date = tag.original_release_date
else:
date = tag.getBestDate(
prefer_recording_date=":prefer_recording" in param)
if date and param.endswith(":year"):
dstr = str(date.year)
elif date:
dstr = str(date)
else:
dstr = ""
if self._dotted_dates:
dstr = dstr.replace('-', '.')
return dstr
@staticmethod
def _nums(num_tuple, param, zeropad):
nn, nt = ((str(n) if n else None) for n in num_tuple)
if zeropad:
if nt:
nt = nt.rjust(2, "0")
nn = nn.rjust(len(nt) if nt else 2, "0")
if param.endswith(":num"):
return nn
elif param.endswith(":total"):
return nt
else:
raise ValueError("Unknown template param: %s" % param)
def _track(self, tag, param, zeropad):
return self._nums(tag.track_num, param, zeropad)
def _disc(self, tag, param, zeropad):
return self._nums(tag.disc_num, param, zeropad)
@staticmethod
def _file(tag, param):
assert(param.startswith("file"))
if param.endswith(":ext"):
return os.path.splitext(tag.file_info.name)[1][1:]
else:
return tag.file_info.name
def _makeMapping(self, tag, zeropad):
return {"artist": tag.artist if tag else None,
"album_artist": tag.album_artist if tag else None,
"album": tag.album if tag else None,
"title": tag.title if tag else None,
"track:num": (self._track, zeropad) if tag else None,
"track:total": (self._track, zeropad) if tag else None,
"release_date": (self._dates,) if tag else None,
"release_date:year": (self._dates,) if tag else None,
"recording_date": (self._dates,) if tag else None,
"recording_date:year": (self._dates,) if tag else None,
"original_release_date": (self._dates,) if tag else None,
"original_release_date:year": (self._dates,) if tag else None,
"best_date": (self._dates,) if tag else None,
"best_date:year": (self._dates,) if tag else None,
"best_date:prefer_recording": (self._dates,) if tag else None,
"best_date:prefer_release": (self._dates,) if tag else None,
"best_date:prefer_recording:year": (self._dates,) if tag
else None,
"best_date:prefer_release:year": (self._dates,) if tag
else None,
"file": (self._file,) if tag else None,
"file:ext": (self._file,) if tag else None,
"disc:num": (self._disc, zeropad) if tag else None,
"disc:total": (self._disc, zeropad) if tag else None,
}