8a427a9e69
Multiple androidapp:// go to AndroidApp, AndroidApp_1 and so on Multiple URLs go to URL_1, URL_2 and so on This mimics the way the KeePassDX app handles multiple URLs for it's autofill mechanism
208 lines
8.0 KiB
Python
208 lines
8.0 KiB
Python
import json
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import logging
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import os
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import re
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import subprocess
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from argparse import ArgumentParser
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from typing import Dict, List, Optional
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from pykeepass import PyKeePass, create_database
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from pykeepass.exceptions import CredentialsError
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from pykeepass.group import Group as KPGroup
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from pykeepass.entry import Entry as KPEntry
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import folder as FolderType
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from item import Item, Types as ItemTypes
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s :: %(levelname)s :: %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S',
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)
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kp: Optional[PyKeePass] = None
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def bitwarden_to_keepass(args):
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global kp
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try:
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kp = PyKeePass(args.database_path, password=args.database_password, keyfile=args.database_keyfile)
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except FileNotFoundError:
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logging.info('KeePass database does not exist, creating a new one.')
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kp = create_database(args.database_path, password=args.database_password, keyfile=args.database_keyfile)
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except CredentialsError as e:
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logging.error(f'Wrong password for KeePass database: {e}')
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return
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folders = subprocess.check_output([args.bw_path, 'list', 'folders', '--session', args.bw_session], encoding='utf8')
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folders = json.loads(folders)
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groups_by_id = load_folders(folders)
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logging.info(f'Folders done ({len(groups_by_id)}).')
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items = subprocess.check_output([args.bw_path, 'list', 'items', '--session', args.bw_session], encoding='utf8')
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items = json.loads(items)
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logging.info(f'Starting to process {len(items)} items.')
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for item in items:
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if item['type'] in [ItemTypes.CARD, ItemTypes.IDENTITY]:
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logging.warning(f'Skipping credit card or identity item "{item["name"]}".')
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continue
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bw_item = Item(item)
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is_duplicate_title = False
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try:
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while True:
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entry_title = bw_item.get_name() if not is_duplicate_title else '{name} - ({item_id}'.format(name=bw_item.get_name(), item_id=bw_item.get_id())
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try:
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entry = kp.add_entry(
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destination_group=groups_by_id[bw_item.get_folder_id()],
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title=entry_title,
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username=bw_item.get_username(),
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password=bw_item.get_password(),
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notes=bw_item.get_notes()
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)
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break
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except Exception as e:
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if 'already exists' in str(e):
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is_duplicate_title = True
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continue
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raise
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totp_secret, totp_settings = bw_item.get_totp()
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if totp_secret and totp_settings:
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entry.set_custom_property('TOTP Seed', totp_secret)
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entry.set_custom_property('TOTP Settings', totp_settings)
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uris = [uri['uri'] for uri in bw_item.get_uris()]
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set_kp_entry_urls(entry, uris)
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for field in bw_item.get_custom_fields():
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entry.set_custom_property(field['name'], field['value'])
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for attachment in bw_item.get_attachments():
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attachment_raw = subprocess.check_output([
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args.bw_path, 'get', 'attachment', attachment['id'], '--raw', '--itemid', bw_item.get_id(),
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'--session', args.bw_session,
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])
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attachment_id = kp.add_binary(attachment_raw)
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entry.add_attachment(attachment_id, attachment['fileName'])
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except Exception as e:
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logging.warning(f'Skipping item named "{item["name"]}" because of this error: {repr(e)}')
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continue
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logging.info('Saving changes to KeePass database.')
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kp.save()
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logging.info('Export completed.')
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def set_kp_entry_urls(entry: KPEntry, urls: List[str]) -> None:
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"""Store a list of URLs comming from a Bitwarden entry in different
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attributes and custom properties of a KeePass entry, depending on whether
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it's an identifier for an Android or iOS app or it's a generic URL"""
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android_apps = ios_apps = extra_urls = 0
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for url in urls:
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match url.partition('://'):
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case ('androidapp', '://', app_id):
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# It's an Android app registered by Bitwarden's mobile app
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# Store multiple apps in AndroidApp, AndroidApp_1, etc. so that KeePassDX's autofill picks it up
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prop_name = "AndroidApp" if android_apps == 0 else f"AndroidApp_{android_apps}"
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android_apps += 1
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entry.set_custom_property(prop_name, app_id)
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case ('iosapp', '://', app_id):
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# It's an iOS app registered by Bitwarden's mobile app
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# XXX Maybe properly set up autofill for a macOS/iPhone/iPad KeePass-compatible app like StrongBox or Keepassium
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ios_apps += 1
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entry.set_custom_property(f'iOS app #{ios_apps}', app_id)
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case _:
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# Assume it's a generic URL.
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# First one goes to the standard URL attribute and the remaining ones go to URL_1, URL_2 and so on
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if entry.url is None:
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entry.url = url
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else:
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extra_urls += 1
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entry.set_custom_property(f'URL_{extra_urls}', url)
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def load_folders(folders) -> Dict[str, KPGroup]:
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# sort folders so that in the case of nested folders, the parents would be guaranteed to show up before the children
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folders.sort(key=lambda x: x['name'])
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# dict to store mapping of Bitwarden folder id to keepass group
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groups_by_id: Dict[str, KPGroup] = {}
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# build up folder tree
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folder_root: FolderType.Folder = FolderType.Folder(None)
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folder_root.keepass_group = kp.root_group
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groups_by_id[None] = kp.root_group
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for folder in folders:
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if folder['id'] is not None:
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new_folder: FolderType.Folder = FolderType.Folder(folder['id'])
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# regex lifted from https://github.com/bitwarden/jslib/blob/ecdd08624f61ccff8128b7cb3241f39e664e1c7f/common/src/services/folder.service.ts#L108
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folder_name_parts: List[str] = re.sub(r'^\/+|\/+$', '', folder['name']).split('/')
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FolderType.nested_traverse_insert(folder_root, folder_name_parts, new_folder, '/')
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# create keepass groups based off folder tree
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def add_keepass_group(folder: FolderType.Folder):
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parent_group: KPGroup = folder.parent.keepass_group
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new_group: KPGroup = kp.add_group(parent_group, folder.name)
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folder.keepass_group = new_group
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groups_by_id[folder.id] = new_group
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FolderType.bfs_traverse_execute(folder_root, add_keepass_group)
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return groups_by_id
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def check_args(args):
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if args.database_keyfile:
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if not os.path.isfile(args.database_keyfile) or not os.access(args.database_keyfile, os.R_OK):
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logging.error('Key File for KeePass database is not readable.')
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return False
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if not os.path.isfile(args.bw_path) or not os.access(args.bw_path, os.X_OK):
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logging.error('bitwarden-cli was not found or not executable. Did you set correct \'--bw-path\'?')
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return False
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return True
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def environ_or_required(key):
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return (
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{'default': os.environ.get(key)} if os.environ.get(key)
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else {'required': True}
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)
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parser = ArgumentParser()
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parser.add_argument(
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'--bw-session',
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help='Session generated from bitwarden-cli (bw login)',
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**environ_or_required('BW_SESSION'),
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)
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parser.add_argument(
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'--database-path',
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help='Path to KeePass database. If database does not exists it will be created.',
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**environ_or_required('DATABASE_PATH'),
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)
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parser.add_argument(
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'--database-password',
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help='Password for KeePass database',
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**environ_or_required('DATABASE_PASSWORD'),
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)
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parser.add_argument(
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'--database-keyfile',
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help='Path to Key File for KeePass database',
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default=os.environ.get('DATABASE_KEYFILE', None),
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)
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parser.add_argument(
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'--bw-path',
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help='Path for bw binary',
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default=os.environ.get('BW_PATH', 'bw'),
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)
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args = parser.parse_args()
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check_args(args) and bitwarden_to_keepass(args)
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