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100 lines
3 KiB
Python
100 lines
3 KiB
Python
from __future__ import (division, absolute_import, print_function,
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unicode_literals)
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"""Fixes file permissions after the file gets written on import. Put something
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like the following in your config.yaml to configure:
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permissions:
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file: 644
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dir: 755
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"""
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import os
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from beets import config, util
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from beets.plugins import BeetsPlugin
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from beets.util import ancestry
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def convert_perm(perm):
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"""If the perm is a int it will first convert it to a string and back
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to an oct int. Else it just converts it to oct.
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"""
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if isinstance(perm, int):
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return int(bytes(perm), 8)
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else:
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return int(perm, 8)
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def check_permissions(path, permission):
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"""Checks the permissions of a path.
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"""
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return oct(os.stat(path).st_mode & 0o777) == oct(permission)
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def dirs_in_library(library, item):
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"""Creates a list of ancestor directories in the beets library path.
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"""
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return [ancestor
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for ancestor in ancestry(item)
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if library in ancestor][1:]
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class Permissions(BeetsPlugin):
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def __init__(self):
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super(Permissions, self).__init__()
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# Adding defaults.
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self.config.add({
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u'file': 644,
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u'dir': 755
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})
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@Permissions.listen('item_imported')
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@Permissions.listen('album_imported')
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def permissions(lib, item=None, album=None):
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"""Running the permission fixer.
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"""
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# Getting the config.
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file_perm = config['permissions']['file'].get()
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dir_perm = config['permissions']['dir'].get()
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# Converts permissions to oct.
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file_perm = convert_perm(file_perm)
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dir_perm = convert_perm(dir_perm)
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# Create chmod_queue.
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file_chmod_queue = []
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if item:
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file_chmod_queue.append(item.path)
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elif album:
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for album_item in album.items():
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file_chmod_queue.append(album_item.path)
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# A set of directories to change permissions for.
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dir_chmod_queue = set()
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for path in file_chmod_queue:
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# Changing permissions on the destination file.
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os.chmod(util.bytestring_path(path), file_perm)
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# Checks if the destination path has the permissions configured.
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if not check_permissions(util.bytestring_path(path), file_perm):
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message = 'There was a problem setting permission on {}'.format(
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path)
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print(message)
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# Adding directories to the directory chmod queue.
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dir_chmod_queue.update(
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dirs_in_library(config['directory'].get(),
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path))
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# Change permissions for the directories.
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for path in dir_chmod_queue:
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# Chaning permissions on the destination directory.
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os.chmod(util.bytestring_path(path), dir_perm)
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# Checks if the destination path has the permissions configured.
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if not check_permissions(util.bytestring_path(path), dir_perm):
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message = 'There was a problem setting permission on {}'.format(
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path)
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print(message)
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