mirror of
https://github.com/l1ving/youtube-dl
synced 2024-11-22 09:52:52 +08:00
127 lines
4.8 KiB
Python
127 lines
4.8 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
from .common import PostProcessor
|
|
from ..compat import (
|
|
subprocess_check_output
|
|
)
|
|
from ..utils import (
|
|
check_executable,
|
|
hyphenate_date,
|
|
version_tuple,
|
|
)
|
|
|
|
|
|
class XAttrMetadataPP(PostProcessor):
|
|
|
|
#
|
|
# More info about extended attributes for media:
|
|
# http://freedesktop.org/wiki/CommonExtendedAttributes/
|
|
# http://www.freedesktop.org/wiki/PhreedomDraft/
|
|
# http://dublincore.org/documents/usageguide/elements.shtml
|
|
#
|
|
# TODO:
|
|
# * capture youtube keywords and put them in 'user.dublincore.subject' (comma-separated)
|
|
# * figure out which xattrs can be used for 'duration', 'thumbnail', 'resolution'
|
|
#
|
|
|
|
def run(self, info):
|
|
""" Set extended attributes on downloaded file (if xattr support is found). """
|
|
|
|
# This mess below finds the best xattr tool for the job and creates a
|
|
# "write_xattr" function.
|
|
try:
|
|
# try the pyxattr module...
|
|
import xattr
|
|
|
|
# Unicode arguments are not supported in python-pyxattr until
|
|
# version 0.5.0
|
|
# See https://github.com/rg3/youtube-dl/issues/5498
|
|
pyxattr_required_version = '0.5.0'
|
|
if version_tuple(xattr.__version__) < version_tuple(pyxattr_required_version):
|
|
self._downloader.report_warning(
|
|
'python-pyxattr is detected but is too old. '
|
|
'youtube-dl requires %s or above while your version is %s. '
|
|
'Falling back to other xattr implementations' % (
|
|
pyxattr_required_version, xattr.__version__))
|
|
|
|
raise ImportError
|
|
|
|
def write_xattr(path, key, value):
|
|
return xattr.setxattr(path, key, value)
|
|
|
|
except ImportError:
|
|
if os.name == 'nt':
|
|
# Write xattrs to NTFS Alternate Data Streams:
|
|
# http://en.wikipedia.org/wiki/NTFS#Alternate_data_streams_.28ADS.29
|
|
def write_xattr(path, key, value):
|
|
assert ':' not in key
|
|
assert os.path.exists(path)
|
|
|
|
ads_fn = path + ":" + key
|
|
with open(ads_fn, "wb") as f:
|
|
f.write(value)
|
|
else:
|
|
user_has_setfattr = check_executable("setfattr", ['--version'])
|
|
user_has_xattr = check_executable("xattr", ['-h'])
|
|
|
|
if user_has_setfattr or user_has_xattr:
|
|
|
|
def write_xattr(path, key, value):
|
|
if user_has_setfattr:
|
|
cmd = ['setfattr', '-n', key, '-v', value, path]
|
|
elif user_has_xattr:
|
|
cmd = ['xattr', '-w', key, value, path]
|
|
|
|
subprocess_check_output(cmd)
|
|
|
|
else:
|
|
# On Unix, and can't find pyxattr, setfattr, or xattr.
|
|
if sys.platform.startswith('linux'):
|
|
self._downloader.report_error(
|
|
"Couldn't find a tool to set the xattrs. "
|
|
"Install either the python 'pyxattr' or 'xattr' "
|
|
"modules, or the GNU 'attr' package "
|
|
"(which contains the 'setfattr' tool).")
|
|
else:
|
|
self._downloader.report_error(
|
|
"Couldn't find a tool to set the xattrs. "
|
|
"Install either the python 'xattr' module, "
|
|
"or the 'xattr' binary.")
|
|
|
|
# Write the metadata to the file's xattrs
|
|
self._downloader.to_screen('[metadata] Writing metadata to file\'s xattrs')
|
|
|
|
filename = info['filepath']
|
|
|
|
try:
|
|
xattr_mapping = {
|
|
'user.xdg.referrer.url': 'webpage_url',
|
|
# 'user.xdg.comment': 'description',
|
|
'user.dublincore.title': 'title',
|
|
'user.dublincore.date': 'upload_date',
|
|
'user.dublincore.description': 'description',
|
|
'user.dublincore.contributor': 'uploader',
|
|
'user.dublincore.format': 'format',
|
|
}
|
|
|
|
for xattrname, infoname in xattr_mapping.items():
|
|
|
|
value = info.get(infoname)
|
|
|
|
if value:
|
|
if infoname == "upload_date":
|
|
value = hyphenate_date(value)
|
|
|
|
byte_value = value.encode('utf-8')
|
|
write_xattr(filename, xattrname, byte_value)
|
|
|
|
return [], info
|
|
|
|
except (subprocess.CalledProcessError, OSError):
|
|
self._downloader.report_error("This filesystem doesn't support extended attributes. (You may have to enable them in your /etc/fstab)")
|
|
return [], info
|