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efa97bdcf1
There are some other places that use xattr functions. It's better to move it to a common place so that others can use it.
78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
from __future__ import unicode_literals
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from .common import PostProcessor
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from ..compat import compat_os_name
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from ..utils import (
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hyphenate_date,
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write_xattr,
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XAttrMetadataError,
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XAttrUnavailableError,
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)
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class XAttrMetadataPP(PostProcessor):
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#
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# More info about extended attributes for media:
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# http://freedesktop.org/wiki/CommonExtendedAttributes/
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# http://www.freedesktop.org/wiki/PhreedomDraft/
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# http://dublincore.org/documents/usageguide/elements.shtml
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#
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# TODO:
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# * capture youtube keywords and put them in 'user.dublincore.subject' (comma-separated)
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# * figure out which xattrs can be used for 'duration', 'thumbnail', 'resolution'
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#
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def run(self, info):
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""" Set extended attributes on downloaded file (if xattr support is found). """
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# Write the metadata to the file's xattrs
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self._downloader.to_screen('[metadata] Writing metadata to file\'s xattrs')
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filename = info['filepath']
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try:
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xattr_mapping = {
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'user.xdg.referrer.url': 'webpage_url',
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# 'user.xdg.comment': 'description',
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'user.dublincore.title': 'title',
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'user.dublincore.date': 'upload_date',
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'user.dublincore.description': 'description',
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'user.dublincore.contributor': 'uploader',
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'user.dublincore.format': 'format',
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}
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for xattrname, infoname in xattr_mapping.items():
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value = info.get(infoname)
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if value:
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if infoname == 'upload_date':
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value = hyphenate_date(value)
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byte_value = value.encode('utf-8')
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write_xattr(filename, xattrname, byte_value)
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return [], info
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except XAttrUnavailableError as e:
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self._downloader.report_error(str(e))
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return [], info
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except XAttrMetadataError as e:
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if e.reason == 'NO_SPACE':
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self._downloader.report_warning(
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'There\'s no disk space left or disk quota exceeded. ' +
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'Extended attributes are not written.')
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elif e.reason == 'VALUE_TOO_LONG':
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self._downloader.report_warning(
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'Unable to write extended attributes due to too long values.')
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else:
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msg = 'This filesystem doesn\'t support extended attributes. '
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if compat_os_name == 'nt':
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msg += 'You need to use NTFS.'
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else:
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msg += '(You may have to enable them in your /etc/fstab)'
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self._downloader.report_error(msg)
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return [], info
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