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import copy
from cli_common import run_proc
class GnuPG(object):
def __init__(self, homedir, gpg_path):
self.__gpg = gpg_path
self.__common_params = ['--homedir', homedir, '--yes']
self.__password = None
self.__userid = None
self.__hash = None
@property
def bin(self):
return self.__gpg
@property
def common_params(self):
return copy.copy(self.__common_params)
@property
def password(self):
return self.__password
@property
def userid(self):
return self.__userid
@userid.setter
def userid(self, val):
self.__userid = val
@property
def hash(self):
return self.__hash
@hash.setter
def hash(self, val):
self.__hash = val
@password.setter
def password(self, val):
self.__password = val
def copy(self):
return copy.deepcopy(self)
def _run(self, cmd, params, batch_input = None):
retcode, _, _ = run_proc(cmd, params, batch_input)
return retcode == 0
def list_keys(self, secret = False):
params = ['--list-secret-keys'] if secret else ['--list-keys']
params = params + self.common_params
return self._run(self.__gpg, params)
def generate_key_batch(self, batch_input):
params = ['--gen-key', '--expert', '--batch',
'--pinentry-mode', 'loopback'] + self.common_params
if self.password:
params += ['--passphrase', self.password]
if self.hash:
params += ['--cert-digest-algo', self.hash]
return self._run(self.__gpg, params, batch_input)
def export_key(self, out_filename, secret=False):
params = ['--armor']
if secret:
params += ['--pinentry-mode', 'loopback', '--export-secret-key']
params += ['--passphrase', self.password]
else:
params = ['--export']
params = self.common_params + \
params + ['-o', out_filename, self.userid]
return self._run(self.__gpg, params)
def import_key(self, filename, secret = False):
params = self.common_params
if secret:
params += ['--trust-model', 'always']
params += ['--batch']
params += ['--passphrase', self.password]
params += ['--import', filename]
return self._run(self.__gpg, params)
def sign(self, out, input):
params = self.common_params
params += ['--passphrase', self.password]
params += ['--batch']
params += ['--pinentry-mode', 'loopback']
params += ['-u', self.userid]
params += ['-o', out]
params += ['--sign', input]
if self.hash:
params += ['--digest-algo', self.hash]
return self._run(self.__gpg, params)
def verify(self, input):
params = self.common_params
params += ['--verify', input]
if self.hash:
params += ['--digest-algo', self.hash]
return self._run(self.__gpg, params)
def encrypt(self, recipient, out, input):
params = self.common_params
params += ['--passphrase', self.password]
params += ['-r', recipient]
params += ['-o', out]
# Blindely trust the key without asking
params += ['--always-trust']
params += ['--encrypt', input]
return self._run(self.__gpg, params)
def decrypt(self, out, input):
params = self.common_params
params += ['--passphrase', self.password]
params += ['--pinentry-mode', 'loopback']
params += ['-o', out]
params += ['--decrypt', input]
return self._run(self.__gpg, params)
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