keepass_kppy_pass.py

#!/bin/env python
"""Import keepass 1.x compatible password database into GNU pass
http://www.passwordstore.org/.
Uses the kppy (https://pypi.python.org/pypi/kppy) library to open and decode
the database.  Python 2.7+ and Python 3.x compatible. Best results with Python3
for any unicode issues.

Usage: keepass2pass.py <keepass db> [--keyfile <key file if necessary>]

Based on http://git.zx2c4.com/password-store/tree/contrib/importers/keepassx2pass.py
keepassx2pass.py: Juhamatti Niemelä <iiska@iki.fi>

This file is licensed under the GPLv2+.

keepass_kppy_pass.py: Copyright (C) 2014 Scott Hansen <firecat4153@gmail.com>

"""
import argparse
import os.path
import re
from getpass import getpass
from subprocess import Popen, PIPE

from kppy.database import KPDBv1
from kppy.exceptions import KPError


def open_db(fn, pw, key=None, ro=True):
    """Open and load the database.

    """
    db = KPDBv1(fn, pw, key, ro)
    db.load()
    return db


def clean_title(title):
    """Make the title more command line friendly.

    """
    title = re.sub("(\\|\||\(|\)|/)", "-", title)
    title = re.sub("-$", "", title)
    title = re.sub("\@", "At", title)
    title = re.sub("'", "", title)
    return title


def path_for(title, path=''):
    """ Generate path name from entry title and current path.

     """
    title = clean_title(title)
    return os.path.join(path, title)


def password_data(entry):
    """Return password data and additional info if available from
    password entry element.

    """
    ret = []
    for field in ['password', 'username', 'url', 'comment']:
        ret.append(getattr(entry, field))
    return "\n".join(ret)


def import_group(group, path=''):
    """Import all entries and sub-groups from given group.

    """
    npath = path_for(group.title, path)
    for child_group in group.children:
        import_group(child_group, npath)
    for entry in group.entries:
        import_entry(entry, npath)


def import_entry(entry, path=''):
    """Import new password entry to password-store using pass insert
    command.

    """
    print("Importing: {}".format(entry.title))
    try:
        data = password_data(entry).encode()
    except UnicodeEncodeError:
        try:
            data = password_data(entry).encode('latin1')
        except UnicodeEncodeError:
            print("Unicode error. Unable to import {}".format(entry.title))
            return
    proc = Popen(['pass', 'insert', '--multiline', '--force',
                  path_for(entry.title, path)], stdin=PIPE, stdout=PIPE)
    proc.communicate(data)
    proc.wait()


def parse_args():
    """Command line arguments.

        Returns: db-file: path to database file
                 key-file: path to key file, if necessary

    """
    parser = argparse.ArgumentParser()
    parser.add_argument('dbfile')
    parser.add_argument('--keyfile')
    args = parser.parse_args()
    key = args.keyfile or None
    return args.dbfile, key


def main():
    fn, key = parse_args()
    pw = getpass('Database passphrase: ')
    try:
        db = open_db(fn, pw, key)
    except KPError as e:
        print("{}".format(e))
    else:
        for group in db.root_group.children:
            import_group(group)
        db.close()


if __name__ == '__main__':
    main()