diff options
Diffstat (limited to '__init__.py')
| -rw-r--r-- | __init__.py | 72 |
1 files changed, 50 insertions, 22 deletions
diff --git a/__init__.py b/__init__.py index c9c1bedf..bc8ef5b4 100644 --- a/__init__.py +++ b/__init__.py @@ -12,6 +12,9 @@ import os import string import random import hmac +import configparser +import re + from leap.soledad.backends import sqlcipher from leap.soledad.util import GPGWrapper from leap.soledad.backends.leap_backend import ( @@ -33,34 +36,58 @@ class Soledad(object): on Soledad server. """ - LOCAL_DB_PATH = None - # other configs SECRET_LENGTH = 50 - def __init__(self, user_email, gnupghome=None, initialize=True, - prefix=None, secret_path=None, local_db_path=None): + def __init__(self, user_email, prefix=None, gnupg_home=None, + secret_path=None, local_db_path=None, + config_file=None, initialize=True): """ Bootstrap Soledad, initialize cryptographic material and open underlying U1DB database. """ self._user_email = user_email - # paths - self.PREFIX = prefix or os.environ['HOME'] + '/.config/leap/soledad' - self.SECRET_PATH = secret_path or self.PREFIX + '/secret.gpg' - self.LOCAL_DB_PATH = local_db_path or self.PREFIX + '/soledad.u1db' - if not os.path.isdir(self.PREFIX): - os.makedirs(self.PREFIX) - self._gpg = GPGWrapper( - gnupghome=(gnupghome or self.PREFIX + '/gnupg')) + self._init_config(prefix, gnupg_home, secret_path, local_db_path, + config_file) if initialize: + self._init_dirs() self._init_crypto() self._init_db() + def _init_config(self, prefix, gnupg_home, secret_path, local_db_path, + config_file): + # set default config + self.prefix = prefix or os.environ['HOME'] + '/.config/leap/soledad' + default_conf = { + 'gnupg_home': gnupg_home or '%s/gnupg', + 'secret_path': secret_path or '%s/secret.gpg', + 'local_db_path': local_db_path or '%s/soledad.u1db', + 'config_file': config_file or '%s/soledad.ini' + } + m = re.compile('.*%s.*') + for key, default_value in default_conf.iteritems(): + if m.match(default_value): + val = default_value % self.prefix + else: + val = default_value + setattr(self, key, val) + # get config from file + config = configparser.ConfigParser() + config.read(self.config_file) + if 'soledad-server' in config: + for key in default_conf: + if key in config['soledad-server']: + setattr(self, key, config['soledad-server'][key]) + + def _init_dirs(self): + if not os.path.isdir(self.prefix): + os.makedirs(self.prefix) + def _init_crypto(self): """ Load/generate OpenPGP keypair and secret for symmetric encryption. """ + self._gpg = GPGWrapper(gnupghome=self.gnupg_home) # load/generate OpenPGP keypair if not self._has_openpgp_keypair(): self._gen_openpgp_keypair() @@ -75,7 +102,7 @@ class Soledad(object): # TODO: verify if secret for sqlcipher should be the same as the # one for symmetric encryption. self._db = sqlcipher.open( - self.LOCAL_DB_PATH, + self.local_db_path, self._secret, create=True, document_factory=LeapDocument, @@ -97,14 +124,14 @@ class Soledad(object): file. """ # does the file exist in disk? - if not os.path.isfile(self.SECRET_PATH): + if not os.path.isfile(self.secret_path): return False # is it asymmetrically encrypted? - f = open(self.SECRET_PATH, 'r') + f = open(self.secret_path, 'r') content = f.read() if not self.is_encrypted_asym(content): raise DocumentNotEncrypted( - "File %s is not encrypted!" % self.SECRET_PATH) + "File %s is not encrypted!" % self.secret_path) # can we decrypt it? fp = self._gpg.encrypted_to(content)['fingerprint'] if fp != self._fingerprint: @@ -116,22 +143,23 @@ class Soledad(object): Load secret for symmetric encryption from local encrypted file. """ try: - with open(self.SECRET_PATH) as f: + with open(self.secret_path) as f: self._secret = str(self._gpg.decrypt(f.read())) except IOError: - raise IOError('Failed to open secret file %s.' % self.SECRET_PATH) + raise IOError('Failed to open secret file %s.' % self.secret_path) def _gen_secret(self): """ Generate a secret for symmetric encryption and store in a local encrypted file. """ - self._secret = ''.join(random.choice(string.ascii_uppercase + - string.digits) for x in - range(self.SECRET_LENGTH)) + self._secret = ''.join( + random.choice( + string.ascii_letters + + string.digits) for x in range(self.SECRET_LENGTH)) ciphertext = self._gpg.encrypt(self._secret, self._fingerprint, self._fingerprint) - f = open(self.SECRET_PATH, 'w') + f = open(self.secret_path, 'w') f.write(str(ciphertext)) f.close() |