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Merge pull request #12106 from amenonsen/vault-cleanups

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Vault cleanups, pass #1
This commit is contained in:
Toshio Kuratomi 2015-08-26 07:30:13 -07:00
commit 111c0cc204
3 changed files with 50 additions and 77 deletions
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31
lib/ansible/cli/vault.py
View file

@ -30,7 +30,6 @@ class VaultCLI(CLI):
""" Vault command line class """
VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "rekey", "view")
CIPHER = 'AES256'
def __init__(self, args, display=None):
@ -84,6 +83,8 @@ class VaultCLI(CLI):
if not self.vault_pass:
raise AnsibleOptionsError("A password is required to use Ansible's Vault")
self.editor = VaultEditor(self.vault_pass)
self.execute()
def execute_create(self):
@ -91,39 +92,30 @@ class VaultCLI(CLI):
if len(self.args) > 1:
raise AnsibleOptionsError("ansible-vault create can take only one filename argument")
cipher = getattr(self.options, 'cipher', self.CIPHER)
this_editor = VaultEditor(cipher, self.vault_pass, self.args[0])
this_editor.create_file()
self.editor.create_file(self.args[0])
def execute_decrypt(self):
cipher = getattr(self.options, 'cipher', self.CIPHER)
for f in self.args:
this_editor = VaultEditor(cipher, self.vault_pass, f)
this_editor.decrypt_file()
self.editor.decrypt_file(f)
self.display.display("Decryption successful")
self.display.display("Decryption successful", stderr=True)
def execute_edit(self):
for f in self.args:
this_editor = VaultEditor(None, self.vault_pass, f)
this_editor.edit_file()
self.editor.edit_file(f)
def execute_view(self):
for f in self.args:
this_editor = VaultEditor(None, self.vault_pass, f)
this_editor.view_file()
self.editor.view_file(f)
def execute_encrypt(self):
cipher = getattr(self.options, 'cipher', self.CIPHER)
for f in self.args:
this_editor = VaultEditor(cipher, self.vault_pass, f)
this_editor.encrypt_file()
self.editor.encrypt_file(f)
self.display.display("Encryption successful")
self.display.display("Encryption successful", stderr=True)
def execute_rekey(self):
for f in self.args:
@ -136,7 +128,6 @@ class VaultCLI(CLI):
__, new_password = self.ask_vault_passwords(ask_vault_pass=False, ask_new_vault_pass=True, confirm_new=True)
for f in self.args:
this_editor = VaultEditor(None, self.vault_pass, f)
this_editor.rekey_file(new_password)
self.editor.rekey_file(f, new_password)
self.display.display("Rekey successful")
self.display.display("Rekey successful", stderr=True)

78
lib/ansible/parsing/vault/__init__.py
View file

@ -12,11 +12,6 @@
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
#
# ansible-pull is a script that runs ansible in local mode
# after checking out a playbooks directory from source repo. There is an
# example playbook to bootstrap this script in the examples/ dir which
# installs ansible and sets it up to run on cron.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
@ -137,11 +132,11 @@ class VaultLib:
if self.is_encrypted(b_data):
raise AnsibleError("data is already encrypted")
if not self.cipher_name:
if not self.cipher_name or self.cipher_name not in CIPHER_WRITE_WHITELIST:
self.cipher_name = u"AES256"
cipher_class_name = u'Vault{0}'.format(self.cipher_name)
if cipher_class_name in globals() and self.cipher_name in CIPHER_WHITELIST:
if cipher_class_name in globals():
Cipher = globals()[cipher_class_name]
this_cipher = Cipher()
else:
@ -230,18 +225,11 @@ class VaultLib:
class VaultEditor:
# uses helper methods for write_file(self, filename, data)
# to write a file so that code isn't duplicated for simple
# file I/O, ditto read_file(self, filename) and launch_editor(self, filename)
# ... "Don't Repeat Yourself", etc.
def __init__(self, cipher_name, password, filename):
# instantiates a member variable for VaultLib
self.cipher_name = cipher_name
def __init__(self, password):
self.password = password
self.filename = filename
def _edit_file_helper(self, existing_data=None, cipher=None, force_save=False):
def _edit_file_helper(self, filename, existing_data=None, force_save=False):
# make sure the umask is set to a sane value
old_umask = os.umask(0o077)
@ -262,70 +250,68 @@ class VaultEditor:
# create new vault
this_vault = VaultLib(self.password)
if cipher:
this_vault.cipher_name = cipher
# encrypt new data and write out to tmp
enc_data = this_vault.encrypt(tmpdata)
self.write_data(enc_data, tmp_path)
# shuffle tmp file into place
self.shuffle_files(tmp_path, self.filename)
self.shuffle_files(tmp_path, filename)
# and restore umask
os.umask(old_umask)
def create_file(self):
def create_file(self, filename):
""" create a new encrypted file """
check_prereqs()
if os.path.isfile(self.filename):
raise AnsibleError("%s exists, please use 'edit' instead" % self.filename)
if os.path.isfile(filename):
raise AnsibleError("%s exists, please use 'edit' instead" % filename)
# Let the user specify contents and save file
self._edit_file_helper(cipher=self.cipher_name)
self._edit_file_helper(filename)
def decrypt_file(self):
def decrypt_file(self, filename):
check_prereqs()
if not os.path.isfile(self.filename):
raise AnsibleError("%s does not exist" % self.filename)
if not os.path.isfile(filename):
raise AnsibleError("%s does not exist" % filename)
tmpdata = self.read_data(self.filename)
tmpdata = self.read_data(filename)
this_vault = VaultLib(self.password)
if this_vault.is_encrypted(tmpdata):
dec_data = this_vault.decrypt(tmpdata)
if dec_data is None:
raise AnsibleError("Decryption failed")
else:
self.write_data(dec_data, self.filename)
self.write_data(dec_data, filename)
else:
raise AnsibleError("%s is not encrypted" % self.filename)
raise AnsibleError("%s is not encrypted" % filename)
def edit_file(self):
def edit_file(self, filename):
check_prereqs()
# decrypt to tmpfile
tmpdata = self.read_data(self.filename)
tmpdata = self.read_data(filename)
this_vault = VaultLib(self.password)
dec_data = this_vault.decrypt(tmpdata)
# let the user edit the data and save
if this_vault.cipher_name not in CIPHER_WRITE_WHITELIST:
# we want to get rid of files encrypted with the AES cipher
self._edit_file_helper(existing_data=dec_data, cipher=None, force_save=True)
self._edit_file_helper(filename, existing_data=dec_data, force_save=True)
else:
self._edit_file_helper(existing_data=dec_data, cipher=this_vault.cipher_name, force_save=False)
self._edit_file_helper(filename, existing_data=dec_data, force_save=False)
def view_file(self):
def view_file(self, filename):
check_prereqs()
# decrypt to tmpfile
tmpdata = self.read_data(self.filename)
tmpdata = self.read_data(filename)
this_vault = VaultLib(self.password)
dec_data = this_vault.decrypt(tmpdata)
_, tmp_path = tempfile.mkstemp()
@ -335,40 +321,36 @@ class VaultEditor:
call(self._pager_shell_command(tmp_path))
os.remove(tmp_path)
def encrypt_file(self):
def encrypt_file(self, filename):
check_prereqs()
if not os.path.isfile(self.filename):
raise AnsibleError("%s does not exist" % self.filename)
if not os.path.isfile(filename):
raise AnsibleError("%s does not exist" % filename)
tmpdata = self.read_data(self.filename)
tmpdata = self.read_data(filename)
this_vault = VaultLib(self.password)
this_vault.cipher_name = self.cipher_name
if not this_vault.is_encrypted(tmpdata):
enc_data = this_vault.encrypt(tmpdata)
self.write_data(enc_data, self.filename)
self.write_data(enc_data, filename)
else:
raise AnsibleError("%s is already encrypted" % self.filename)
raise AnsibleError("%s is already encrypted" % filename)
def rekey_file(self, new_password):
def rekey_file(self, filename, new_password):
check_prereqs()
# decrypt
tmpdata = self.read_data(self.filename)
tmpdata = self.read_data(filename)
this_vault = VaultLib(self.password)
dec_data = this_vault.decrypt(tmpdata)
# create new vault
new_vault = VaultLib(new_password)
# we want to force cipher to the default
#new_vault.cipher_name = this_vault.cipher_name
# re-encrypt data and re-write file
enc_data = new_vault.encrypt(dec_data)
self.write_data(enc_data, self.filename)
self.write_data(enc_data, filename)
def read_data(self, filename):
f = open(filename, "rb")

18
test/units/parsing/vault/test_vault_editor.py
View file

@ -81,7 +81,7 @@ class TestVaultEditor(unittest.TestCase):
pass
def test_methods_exist(self):
v = VaultEditor(None, None, None)
v = VaultEditor(None)
slots = ['create_file',
'decrypt_file',
'edit_file',
@ -103,8 +103,8 @@ class TestVaultEditor(unittest.TestCase):
tmp_file = tempfile.NamedTemporaryFile()
os.unlink(tmp_file.name)
ve = VaultEditor(None, "ansible", tmp_file.name)
ve.create_file()
ve = VaultEditor("ansible")
ve.create_file(tmp_file.name)
self.assertTrue(os.path.exists(tmp_file.name))
@ -120,12 +120,12 @@ class TestVaultEditor(unittest.TestCase):
with v10_file as f:
f.write(to_bytes(v10_data))
ve = VaultEditor(None, "ansible", v10_file.name)
ve = VaultEditor("ansible")
# make sure the password functions for the cipher
error_hit = False
try:
ve.decrypt_file()
ve.decrypt_file(v10_file.name)
except errors.AnsibleError as e:
error_hit = True
@ -148,12 +148,12 @@ class TestVaultEditor(unittest.TestCase):
with v11_file as f:
f.write(to_bytes(v11_data))
ve = VaultEditor(None, "ansible", v11_file.name)
ve = VaultEditor("ansible")
# make sure the password functions for the cipher
error_hit = False
try:
ve.decrypt_file()
ve.decrypt_file(v11_file.name)
except errors.AnsibleError as e:
error_hit = True
@ -180,12 +180,12 @@ class TestVaultEditor(unittest.TestCase):
with v10_file as f:
f.write(to_bytes(v10_data))
ve = VaultEditor(None, "ansible", v10_file.name)
ve = VaultEditor("ansible")
# make sure the password functions for the cipher
error_hit = False
try:
ve.rekey_file('ansible2')
ve.rekey_file(v10_file.name, 'ansible2')
except errors.AnsibleError as e:
error_hit = True