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79 lines
2.9 KiB
79 lines
2.9 KiB
import os
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import shutil
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from typing import List
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from zope import component
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from zope.interface import implementer
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from .validators import is_valid_forwarding_address, InvalidForwardingAddressException
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from ceo_common.interfaces import IFileService, IConfig, IUser
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@implementer(IFileService)
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class FileService:
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def __init__(self):
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cfg = component.getUtility(IConfig)
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self.member_home_skel = cfg.get('members_skel')
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self.club_home_skel = cfg.get('clubs_skel')
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def create_home_dir(self, user: IUser):
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if user.is_club():
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skel_dir = self.club_home_skel
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else:
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skel_dir = self.member_home_skel
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home = user.home_directory
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# It's important to NOT use pwd here because if the user was recently
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# deleted (e.g. as part of a rolled back transaction), their old UID
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# and GID numbers will still be in the NSS cache.
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uid = user.uid_number
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gid = user.gid_number
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# recursively copy skel dir to user's home
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shutil.copytree(skel_dir, home)
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# Set ownership and permissions on user's home.
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# The setgid bit ensures that all files created under that
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# directory belong to the owner (useful for clubs).
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os.chmod(home, mode=0o2751) # rwxr-s--x
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os.chown(home, uid=uid, gid=gid)
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# recursively set file ownership
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for root, dirs, files in os.walk(home):
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for dir in dirs:
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os.chown(os.path.join(root, dir), uid=uid, gid=gid)
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for file in files:
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os.chown(os.path.join(root, file), uid=uid, gid=gid)
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def delete_home_dir(self, user: IUser):
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shutil.rmtree(user.home_directory)
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def get_forwarding_addresses(self, user: IUser) -> List[str]:
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forward_file = os.path.join(user.home_directory, '.forward')
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if not os.path.isfile(forward_file):
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return []
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lines = [
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line.strip() for line in open(forward_file).readlines()
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]
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return [
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line for line in lines
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if line != '' and line[0] != '#'
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]
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def set_forwarding_addresses(self, user: IUser, addresses: List[str]):
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for line in addresses:
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if not is_valid_forwarding_address(line):
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raise InvalidForwardingAddressException(line)
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uid = user.uid_number
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gid = user.gid_number
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forward_file = os.path.join(user.home_directory, '.forward')
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if os.path.exists(forward_file):
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# create a backup
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backup_forward_file = forward_file + '.bak'
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shutil.copyfile(forward_file, backup_forward_file)
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os.chown(backup_forward_file, uid=uid, gid=gid)
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else:
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# create a new ~/.forward file
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open(forward_file, 'w')
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os.chown(forward_file, uid=uid, gid=gid)
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with open(forward_file, 'w') as f:
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for line in addresses:
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f.write(line + '\n')
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