Ejemplo n.º 1
0
    def test_decrypt_1_1(self):
        if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2:
            raise SkipTest

        v11_file = tempfile.NamedTemporaryFile(delete=False)
        with v11_file as f:
            f.write(v11_data)

        ve = VaultEditor(None, "ansible", v11_file.name)

        # make sure the password functions for the cipher
        error_hit = False
        try:
            ve.decrypt_file()
        except errors.AnsibleError as e:
            error_hit = True

        # verify decrypted content
        f = open(v11_file.name, "rb")
        fdata = f.read()
        f.close()

        os.unlink(v11_file.name)

        assert error_hit == False, "error decrypting 1.0 file"
        assert fdata.strip(
        ) == "foo", "incorrect decryption of 1.0 file: %s" % fdata.strip()
Ejemplo n.º 2
0
    def test_decrypt_1_0(self):
        """
        Skip testing decrypting 1.0 files if we don't have access to AES, KDF or
        Counter, or we are running on python3 since VaultAES hasn't been backported.
        """
        if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2 or sys.version > '3':
            raise SkipTest

        v10_file = tempfile.NamedTemporaryFile(delete=False)
        with v10_file as f:
            f.write(to_bytes(v10_data))

        ve = VaultEditor(None, "ansible", v10_file.name)

        # make sure the password functions for the cipher
        error_hit = False
        try:
            ve.decrypt_file()
        except errors.AnsibleError as e:
            error_hit = True

        # verify decrypted content
        f = open(v10_file.name, "rb")
        fdata = to_unicode(f.read())
        f.close()

        os.unlink(v10_file.name)

        assert error_hit == False, "error decrypting 1.0 file"
        assert fdata.strip() == "foo", "incorrect decryption of 1.0 file: %s" % fdata.strip()
Ejemplo n.º 3
0
    def test_decrypt_1_0(self):
        """
        Skip testing decrypting 1.0 files if we don't have access to AES, KDF or
        Counter, or we are running on python3 since VaultAES hasn't been backported.
        """
        if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2:
            raise SkipTest

        v10_file = tempfile.NamedTemporaryFile(delete=False)
        with v10_file as f:
            f.write(to_bytes(v10_data))

        ve = VaultEditor("ansible")

        # make sure the password functions for the cipher
        error_hit = False
        try:
            ve.decrypt_file(v10_file.name)
        except errors.AnsibleError:
            error_hit = True

        # verify decrypted content
        f = open(v10_file.name, "rb")
        fdata = to_text(f.read())
        f.close()

        os.unlink(v10_file.name)

        assert error_hit is False, "error decrypting 1.0 file"
        assert fdata.strip(
        ) == "foo", "incorrect decryption of 1.0 file: %s" % fdata.strip()
Ejemplo n.º 4
0
    def test_decrypt_1_1(self):
        if not HAS_AES or not HAS_COUNTER or not HAS_PBKDF2:
            raise SkipTest

        v11_file = tempfile.NamedTemporaryFile(delete=False)
        with v11_file as f:
            f.write(to_bytes(v11_data))

        ve = VaultEditor("ansible")

        # make sure the password functions for the cipher
        error_hit = False
        try:
            ve.decrypt_file(v11_file.name)
        except errors.AnsibleError:
            error_hit = True

        # verify decrypted content
        f = open(v11_file.name, "rb")
        fdata = to_text(f.read())
        f.close()

        os.unlink(v11_file.name)

        assert error_hit is False, "error decrypting 1.0 file"
        assert fdata.strip() == "foo", "incorrect decryption of 1.0 file: %s" % fdata.strip()
Ejemplo n.º 5
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.display.display("Decryption successful")
Ejemplo n.º 6
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.display.display("Decryption successful")
Ejemplo n.º 7
0
class AnsibleAdapter22(AnsibleAdapterBase):
    def init(self):
        self.vault_editor = VaultEditor(self.vault_password)

    def is_encrypted_vault(self, filename):
        return is_encrypted(utils.read_file_contents(filename))

    def encrypt_vault(self, filename):
        self.vault_editor.encrypt_file(filename)

    def decrypt_vault(self, filename):
        self.vault_editor.decrypt_file(filename)

    def vault_plaintext(self, filename):
        return self.vault_editor.plaintext(filename)
Ejemplo n.º 8
0
    def _ansible_vault_encrpyt(self, data):
        '''
        while True :
            vault_tempfile = tempdir + '/vault' + random_str(ranlen=20) + '_' + str(int(time.time()))
            result = write_file(vault_tempfile, 'w', data)
            if result[0] :
                break
        '''
        result = write_random_file(data)
        if not result[0]:
            return result

        vault_tempfile = result[1]

        ansible_vault = VaultEditor(self.password)
        ansible_vault.decrypt_file(vault_tempfile)
        result = read_file(vault_tempfile)
        os.remove(vault_tempfile)
        return result
Ejemplo n.º 9
0
def library_mode():
    from ansible.parsing.vault import VaultEditor
    from ansible.parsing.vault import VaultFile

    vaultObject = VaultEditor(argv[2])

    try:
        if argv[3] == "encrypt":
            vaultObject.encrypt_file(argv[1], argv[1] + ".tmp")
        elif argv[3] == "decrypt":
            vaultObject.decrypt_file(argv[1], argv[1] + ".tmp")
        else:
            print "Nothing to do"
            exit(0)
        os.rename(argv[1], argv[1] + ".bkp")
        os.rename(argv[1] + ".tmp", argv[1])
        os.remove(argv[1] + ".bkp")
        print argv[3] + " " + argv[1] + ": OK"
    except Exception, e:
        print >> sys.stderr, "Exception: %s" % str(e)
        exit(1)
Ejemplo n.º 10
0
class VaultCLI(CLI):
    ''' can encrypt any structured data file used by Ansible.
    This can include *group_vars/* or *host_vars/* inventory variables,
    variables loaded by *include_vars* or *vars_files*, or variable files
    passed on the ansible-playbook command line with *-e @file.yml* or *-e @file.json*.
    Role variables and defaults are also included!

    Because Ansible tasks, handlers, and other objects are data, these can also be encrypted with vault.
    If you'd like to not expose what variables you are using, you can keep an individual task file entirely encrypted.

    The password used with vault currently must be the same for all files you wish to use together at the same time.
    '''

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "encrypt_string", "rekey", "view")

    FROM_STDIN = "stdin"
    FROM_ARGS = "the command line args"
    FROM_PROMPT = "the interactive prompt"

    def __init__(self, args):

        self.b_vault_pass = None
        self.b_new_vault_pass = None
        self.encrypt_string_read_stdin = False

        self.encrypt_secret = None
        self.encrypt_vault_id = None
        self.new_encrypt_secret = None
        self.new_encrypt_vault_id = None

        self.can_output = ['encrypt', 'decrypt', 'encrypt_string']

        super(VaultCLI, self).__init__(args)

    def set_action(self):

        super(VaultCLI, self).set_action()

        # add output if needed
        if self.action in self.can_output:
            self.parser.add_option('--output', default=None, dest='output_file',
                                   help='output file name for encrypt or decrypt; use - for stdout',
                                   action="callback", callback=CLI.unfrack_path, type='string')

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        # I have no prefence for either dash or underscore
        elif self.action == "encrypt_string":
            self.parser.add_option('-p', '--prompt', dest='encrypt_string_prompt',
                                   action='store_true',
                                   help="Prompt for the string to encrypt")
            self.parser.add_option('-n', '--name', dest='encrypt_string_names',
                                   action='append',
                                   help="Specify the variable name")
            self.parser.add_option('--stdin-name', dest='encrypt_string_stdin_name',
                                   default=None,
                                   help="Specify the variable name for stdin")
            self.parser.set_usage("usage: %prog encrypt-string [--prompt] [options] string_to_encrypt")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage="usage: %%prog [%s] [options] [vaultfile.yml]" % "|".join(self.VALID_ACTIONS),
            desc="encryption/decryption utility for Ansible data files",
            epilog="\nSee '%s <command> --help' for more information on a specific command.\n\n" % os.path.basename(sys.argv[0])
        )

        self.set_action()

        super(VaultCLI, self).parse()

        display.verbosity = self.options.verbosity

        if self.options.vault_ids:
            for vault_id in self.options.vault_ids:
                if u';' in vault_id:
                    raise AnsibleOptionsError("'%s' is not a valid vault id. The character ';' is not allowed in vault ids" % vault_id)

        if self.action not in self.can_output:
            if len(self.args) == 0:
                raise AnsibleOptionsError("Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError("At most one input file may be used with the --output option")

        if self.action == 'encrypt_string':
            if '-' in self.args or len(self.args) == 0 or self.options.encrypt_string_stdin_name:
                self.encrypt_string_read_stdin = True

            # TODO: prompting from stdin and reading from stdin seem mutually exclusive, but verify that.
            if self.options.encrypt_string_prompt and self.encrypt_string_read_stdin:
                raise AnsibleOptionsError('The --prompt option is not supported if also reading input from stdin')

    def run(self):
        super(VaultCLI, self).run()
        loader = DataLoader()

        # set default restrictive umask
        old_umask = os.umask(0o077)

        vault_ids = self.options.vault_ids

        # there are 3 types of actions, those that just 'read' (decrypt, view) and only
        # need to ask for a password once, and those that 'write' (create, encrypt) that
        # ask for a new password and confirm it, and 'read/write (rekey) that asks for the
        # old password, then asks for a new one and confirms it.

        default_vault_ids = C.DEFAULT_VAULT_IDENTITY_LIST
        vault_ids = default_vault_ids + vault_ids

        # TODO: instead of prompting for these before, we could let VaultEditor
        #       call a callback when it needs it.
        if self.action in ['decrypt', 'view', 'rekey', 'edit']:
            vault_secrets = self.setup_vault_secrets(loader,
                                                     vault_ids=vault_ids,
                                                     vault_password_files=self.options.vault_password_files,
                                                     ask_vault_pass=self.options.ask_vault_pass)
            if not vault_secrets:
                raise AnsibleOptionsError("A vault password is required to use Ansible's Vault")

        if self.action in ['encrypt', 'encrypt_string', 'create']:
            if len(vault_ids) > 1:
                raise AnsibleOptionsError("Only one --vault-id can be used for encryption")

            vault_secrets = None
            vault_secrets = \
                self.setup_vault_secrets(loader,
                                         vault_ids=vault_ids,
                                         vault_password_files=self.options.vault_password_files,
                                         ask_vault_pass=self.options.ask_vault_pass,
                                         create_new_password=True)
            if not vault_secrets:
                raise AnsibleOptionsError("A vault password is required to use Ansible's Vault")

            encrypt_secret = match_encrypt_secret(vault_secrets)
            # only one secret for encrypt for now, use the first vault_id and use its first secret
            # self.encrypt_vault_id = list(vault_secrets.keys())[0]
            # self.encrypt_secret = vault_secrets[self.encrypt_vault_id][0]
            self.encrypt_vault_id = encrypt_secret[0]
            self.encrypt_secret = encrypt_secret[1]

        if self.action in ['rekey']:
            new_vault_ids = []
            if self.options.new_vault_id:
                new_vault_ids.append(self.options.new_vault_id)

            new_vault_secrets = \
                self.setup_vault_secrets(loader,
                                         vault_ids=new_vault_ids,
                                         vault_password_files=self.options.new_vault_password_files,
                                         ask_vault_pass=self.options.ask_vault_pass,
                                         create_new_password=True)

            if not new_vault_secrets:
                raise AnsibleOptionsError("A new vault password is required to use Ansible's Vault rekey")

            # There is only one new_vault_id currently and one new_vault_secret
            new_encrypt_secret = match_encrypt_secret(new_vault_secrets)

            self.new_encrypt_vault_id = new_encrypt_secret[0]
            self.new_encrypt_secret = new_encrypt_secret[1]

        loader.set_vault_secrets(vault_secrets)

        # FIXME: do we need to create VaultEditor here? its not reused
        vault = VaultLib(vault_secrets)
        self.editor = VaultEditor(vault)

        self.execute()

        # and restore umask
        os.umask(old_umask)

    def execute_encrypt(self):
        ''' encrypt the supplied file using the provided vault secret '''

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading plaintext input from stdin", stderr=True)

        for f in self.args or ['-']:
            # Fixme: use the correct vau
            self.editor.encrypt_file(f, self.encrypt_secret,
                                     vault_id=self.encrypt_vault_id,
                                     output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

    def format_ciphertext_yaml(self, b_ciphertext, indent=None, name=None):
        indent = indent or 10

        block_format_var_name = ""
        if name:
            block_format_var_name = "%s: " % name

        block_format_header = "%s!vault |" % block_format_var_name
        lines = []
        vault_ciphertext = to_text(b_ciphertext)

        lines.append(block_format_header)
        for line in vault_ciphertext.splitlines():
            lines.append('%s%s' % (' ' * indent, line))

        yaml_ciphertext = '\n'.join(lines)
        return yaml_ciphertext

    def execute_encrypt_string(self):
        ''' encrypt the supplied string using the provided vault secret '''
        b_plaintext = None

        # Holds tuples (the_text, the_source_of_the_string, the variable name if its provided).
        b_plaintext_list = []

        # remove the non-option '-' arg (used to indicate 'read from stdin') from the candidate args so
        # we don't add it to the plaintext list
        args = [x for x in self.args if x != '-']

        # We can prompt and read input, or read from stdin, but not both.
        if self.options.encrypt_string_prompt:
            msg = "String to encrypt: "

            name = None
            name_prompt_response = display.prompt('Variable name (enter for no name): ')

            # TODO: enforce var naming rules?
            if name_prompt_response != "":
                name = name_prompt_response

            # TODO: could prompt for which vault_id to use for each plaintext string
            #       currently, it will just be the default
            # could use private=True for shadowed input if useful
            prompt_response = display.prompt(msg)

            if prompt_response == '':
                raise AnsibleOptionsError('The plaintext provided from the prompt was empty, not encrypting')

            b_plaintext = to_bytes(prompt_response)
            b_plaintext_list.append((b_plaintext, self.FROM_PROMPT, name))

        # read from stdin
        if self.encrypt_string_read_stdin:
            if sys.stdout.isatty():
                display.display("Reading plaintext input from stdin. (ctrl-d to end input)", stderr=True)

            stdin_text = sys.stdin.read()
            if stdin_text == '':
                raise AnsibleOptionsError('stdin was empty, not encrypting')

            b_plaintext = to_bytes(stdin_text)

            # defaults to None
            name = self.options.encrypt_string_stdin_name
            b_plaintext_list.append((b_plaintext, self.FROM_STDIN, name))

        # use any leftover args as strings to encrypt
        # Try to match args up to --name options
        if hasattr(self.options, 'encrypt_string_names') and self.options.encrypt_string_names:
            name_and_text_list = list(zip(self.options.encrypt_string_names, args))

            # Some but not enough --name's to name each var
            if len(args) > len(name_and_text_list):
                # Trying to avoid ever showing the plaintext in the output, so this warning is vague to avoid that.
                display.display('The number of --name options do not match the number of args.',
                                stderr=True)
                display.display('The last named variable will be "%s". The rest will not have names.' % self.options.encrypt_string_names[-1],
                                stderr=True)

            # Add the rest of the args without specifying a name
            for extra_arg in args[len(name_and_text_list):]:
                name_and_text_list.append((None, extra_arg))

        # if no --names are provided, just use the args without a name.
        else:
            name_and_text_list = [(None, x) for x in args]

        # Convert the plaintext text objects to bytestrings and collect
        for name_and_text in name_and_text_list:
            name, plaintext = name_and_text

            if plaintext == '':
                raise AnsibleOptionsError('The plaintext provided from the command line args was empty, not encrypting')

            b_plaintext = to_bytes(plaintext)
            b_plaintext_list.append((b_plaintext, self.FROM_ARGS, name))

        # TODO: specify vault_id per string?
        # Format the encrypted strings and any corresponding stderr output
        outputs = self._format_output_vault_strings(b_plaintext_list, vault_id=self.encrypt_vault_id)

        for output in outputs:
            err = output.get('err', None)
            out = output.get('out', '')
            if err:
                sys.stderr.write(err)
            print(out)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

        # TODO: offer block or string ala eyaml

    def _format_output_vault_strings(self, b_plaintext_list, vault_id=None):
        # If we are only showing one item in the output, we don't need to included commented
        # delimiters in the text
        show_delimiter = False
        if len(b_plaintext_list) > 1:
            show_delimiter = True

        # list of dicts {'out': '', 'err': ''}
        output = []

        # Encrypt the plaintext, and format it into a yaml block that can be pasted into a playbook.
        # For more than one input, show some differentiating info in the stderr output so we can tell them
        # apart. If we have a var name, we include that in the yaml
        for index, b_plaintext_info in enumerate(b_plaintext_list):
            # (the text itself, which input it came from, its name)
            b_plaintext, src, name = b_plaintext_info

            b_ciphertext = self.editor.encrypt_bytes(b_plaintext, self.encrypt_secret,
                                                     vault_id=vault_id)

            # block formatting
            yaml_text = self.format_ciphertext_yaml(b_ciphertext, name=name)

            err_msg = None
            if show_delimiter:
                human_index = index + 1
                if name:
                    err_msg = '# The encrypted version of variable ("%s", the string #%d from %s).\n' % (name, human_index, src)
                else:
                    err_msg = '# The encrypted version of the string #%d from %s.)\n' % (human_index, src)
            output.append({'out': yaml_text, 'err': err_msg})

        return output

    def execute_decrypt(self):
        ''' decrypt the supplied file using the provided vault secret '''

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading ciphertext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Decryption successful", stderr=True)

    def execute_create(self):
        ''' create and open a file in an editor that will be encryped with the provided vault secret when closed'''

        if len(self.args) > 1:
            raise AnsibleOptionsError("ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0], self.encrypt_secret,
                                vault_id=self.encrypt_vault_id)

    def execute_edit(self):
        ''' open and decrypt an existing vaulted file in an editor, that will be encryped again when closed'''
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):
        ''' open, decrypt and view an existing vaulted file using a pager using the supplied vault secret '''

        for f in self.args:
            # Note: vault should return byte strings because it could encrypt
            # and decrypt binary files.  We are responsible for changing it to
            # unicode here because we are displaying it and therefore can make
            # the decision that the display doesn't have to be precisely what
            # the input was (leave that to decrypt instead)
            plaintext = self.editor.plaintext(f)
            self.pager(to_text(plaintext))

    def execute_rekey(self):
        ''' re-encrypt a vaulted file with a new secret, the previous secret is required '''
        for f in self.args:
            # FIXME: plumb in vault_id, use the default new_vault_secret for now
            self.editor.rekey_file(f, self.new_encrypt_secret,
                                   self.new_encrypt_vault_id)

        display.display("Rekey successful", stderr=True)
Ejemplo n.º 11
0
class VaultCLI(CLI):
    ''' can encrypt any structured data file used by Ansible.
    This can include *group_vars/* or *host_vars/* inventory variables,
    variables loaded by *include_vars* or *vars_files*, or variable files
    passed on the ansible-playbook command line with *-e @file.yml* or *-e @file.json*.
    Role variables and defaults are also included!

    Because Ansible tasks, handlers, and other objects are data, these can also be encrypted with vault.
    If you'd like to not expose what variables you are using, you can keep an individual task file entirely encrypted.

    The password used with vault currently must be the same for all files you wish to use together at the same time.
    '''

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "encrypt_string", "rekey", "view")

    FROM_STDIN = "stdin"
    FROM_ARGS = "the command line args"
    FROM_PROMPT = "the interactive prompt"

    def __init__(self, args):

        self.b_vault_pass = None
        self.b_new_vault_pass = None
        self.encrypt_string_read_stdin = False

        self.encrypt_secret = None
        self.encrypt_vault_id = None
        self.new_encrypt_secret = None
        self.new_encrypt_vault_id = None

        self.can_output = ['encrypt', 'decrypt', 'encrypt_string']

        super(VaultCLI, self).__init__(args)

    def set_action(self):

        super(VaultCLI, self).set_action()

        # add output if needed
        if self.action in self.can_output:
            self.parser.add_option('--output', default=None, dest='output_file',
                                   help='output file name for encrypt or decrypt; use - for stdout',
                                   action="callback", callback=CLI.unfrack_path, type='string')

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        # I have no prefence for either dash or underscore
        elif self.action == "encrypt_string":
            self.parser.add_option('-p', '--prompt', dest='encrypt_string_prompt',
                                   action='store_true',
                                   help="Prompt for the string to encrypt")
            self.parser.add_option('-n', '--name', dest='encrypt_string_names',
                                   action='append',
                                   help="Specify the variable name")
            self.parser.add_option('--stdin-name', dest='encrypt_string_stdin_name',
                                   default=None,
                                   help="Specify the variable name for stdin")
            self.parser.set_usage("usage: %prog encrypt_string [--prompt] [options] string_to_encrypt")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        # For encrypting actions, we can also specify which of multiple vault ids should be used for encrypting
        if self.action in ['create', 'encrypt', 'encrypt_string', 'rekey', 'edit']:
            self.parser.add_option('--encrypt-vault-id', default=[], dest='encrypt_vault_id',
                                   action='store', type='string',
                                   help='the vault id used to encrypt (required if more than vault-id is provided)')

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            vault_rekey_opts=True,
            usage="usage: %%prog [%s] [options] [vaultfile.yml]" % "|".join(self.VALID_ACTIONS),
            desc="encryption/decryption utility for Ansible data files",
            epilog="\nSee '%s <command> --help' for more information on a specific command.\n\n" % os.path.basename(sys.argv[0])
        )

        self.set_action()

        super(VaultCLI, self).parse()
        self.validate_conflicts(vault_opts=True, vault_rekey_opts=True)

        display.verbosity = self.options.verbosity

        if self.options.vault_ids:
            for vault_id in self.options.vault_ids:
                if u';' in vault_id:
                    raise AnsibleOptionsError("'%s' is not a valid vault id. The character ';' is not allowed in vault ids" % vault_id)

        if self.action not in self.can_output:
            if len(self.args) == 0:
                raise AnsibleOptionsError("Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError("At most one input file may be used with the --output option")

        if self.action == 'encrypt_string':
            if '-' in self.args or len(self.args) == 0 or self.options.encrypt_string_stdin_name:
                self.encrypt_string_read_stdin = True

            # TODO: prompting from stdin and reading from stdin seem mutually exclusive, but verify that.
            if self.options.encrypt_string_prompt and self.encrypt_string_read_stdin:
                raise AnsibleOptionsError('The --prompt option is not supported if also reading input from stdin')

    def run(self):
        super(VaultCLI, self).run()
        loader = DataLoader()

        # set default restrictive umask
        old_umask = os.umask(0o077)

        vault_ids = self.options.vault_ids

        # there are 3 types of actions, those that just 'read' (decrypt, view) and only
        # need to ask for a password once, and those that 'write' (create, encrypt) that
        # ask for a new password and confirm it, and 'read/write (rekey) that asks for the
        # old password, then asks for a new one and confirms it.

        default_vault_ids = C.DEFAULT_VAULT_IDENTITY_LIST
        vault_ids = default_vault_ids + vault_ids

        # TODO: instead of prompting for these before, we could let VaultEditor
        #       call a callback when it needs it.
        if self.action in ['decrypt', 'view', 'rekey', 'edit']:
            vault_secrets = self.setup_vault_secrets(loader,
                                                     vault_ids=vault_ids,
                                                     vault_password_files=self.options.vault_password_files,
                                                     ask_vault_pass=self.options.ask_vault_pass)
            if not vault_secrets:
                raise AnsibleOptionsError("A vault password is required to use Ansible's Vault")

        if self.action in ['encrypt', 'encrypt_string', 'create']:

            encrypt_vault_id = None
            # no --encrypt-vault-id self.options.encrypt_vault_id for 'edit'
            if self.action not in ['edit']:
                encrypt_vault_id = self.options.encrypt_vault_id or C.DEFAULT_VAULT_ENCRYPT_IDENTITY

            vault_secrets = None
            vault_secrets = \
                self.setup_vault_secrets(loader,
                                         vault_ids=vault_ids,
                                         vault_password_files=self.options.vault_password_files,
                                         ask_vault_pass=self.options.ask_vault_pass,
                                         create_new_password=True)

            if len(vault_secrets) > 1 and not encrypt_vault_id:
                raise AnsibleOptionsError("The vault-ids %s are available to encrypt. Specify the vault-id to encrypt with --encrypt-vault-id" %
                                          ','.join([x[0] for x in vault_secrets]))

            if not vault_secrets:
                raise AnsibleOptionsError("A vault password is required to use Ansible's Vault")

            encrypt_secret = match_encrypt_secret(vault_secrets,
                                                  encrypt_vault_id=encrypt_vault_id)

            # only one secret for encrypt for now, use the first vault_id and use its first secret
            # TODO: exception if more than one?
            self.encrypt_vault_id = encrypt_secret[0]
            self.encrypt_secret = encrypt_secret[1]

        if self.action in ['rekey']:
            encrypt_vault_id = self.options.encrypt_vault_id or C.DEFAULT_VAULT_ENCRYPT_IDENTITY
            # print('encrypt_vault_id: %s' % encrypt_vault_id)
            # print('default_encrypt_vault_id: %s' % default_encrypt_vault_id)

            # new_vault_ids should only ever be one item, from
            # load the default vault ids if we are using encrypt-vault-id
            new_vault_ids = []
            if encrypt_vault_id:
                new_vault_ids = default_vault_ids
            if self.options.new_vault_id:
                new_vault_ids.append(self.options.new_vault_id)

            new_vault_password_files = []
            if self.options.new_vault_password_file:
                new_vault_password_files.append(self.options.new_vault_password_file)

            new_vault_secrets = \
                self.setup_vault_secrets(loader,
                                         vault_ids=new_vault_ids,
                                         vault_password_files=new_vault_password_files,
                                         ask_vault_pass=self.options.ask_vault_pass,
                                         create_new_password=True)

            if not new_vault_secrets:
                raise AnsibleOptionsError("A new vault password is required to use Ansible's Vault rekey")

            # There is only one new_vault_id currently and one new_vault_secret, or we
            # use the id specified in --encrypt-vault-id
            new_encrypt_secret = match_encrypt_secret(new_vault_secrets,
                                                      encrypt_vault_id=encrypt_vault_id)

            self.new_encrypt_vault_id = new_encrypt_secret[0]
            self.new_encrypt_secret = new_encrypt_secret[1]

        loader.set_vault_secrets(vault_secrets)

        # FIXME: do we need to create VaultEditor here? its not reused
        vault = VaultLib(vault_secrets)
        self.editor = VaultEditor(vault)

        self.execute()

        # and restore umask
        os.umask(old_umask)

    def execute_encrypt(self):
        ''' encrypt the supplied file using the provided vault secret '''

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading plaintext input from stdin", stderr=True)

        for f in self.args or ['-']:
            # Fixme: use the correct vau
            self.editor.encrypt_file(f, self.encrypt_secret,
                                     vault_id=self.encrypt_vault_id,
                                     output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

    def format_ciphertext_yaml(self, b_ciphertext, indent=None, name=None):
        indent = indent or 10

        block_format_var_name = ""
        if name:
            block_format_var_name = "%s: " % name

        block_format_header = "%s!vault |" % block_format_var_name
        lines = []
        vault_ciphertext = to_text(b_ciphertext)

        lines.append(block_format_header)
        for line in vault_ciphertext.splitlines():
            lines.append('%s%s' % (' ' * indent, line))

        yaml_ciphertext = '\n'.join(lines)
        return yaml_ciphertext

    def execute_encrypt_string(self):
        ''' encrypt the supplied string using the provided vault secret '''
        b_plaintext = None

        # Holds tuples (the_text, the_source_of_the_string, the variable name if its provided).
        b_plaintext_list = []

        # remove the non-option '-' arg (used to indicate 'read from stdin') from the candidate args so
        # we don't add it to the plaintext list
        args = [x for x in self.args if x != '-']

        # We can prompt and read input, or read from stdin, but not both.
        if self.options.encrypt_string_prompt:
            msg = "String to encrypt: "

            name = None
            name_prompt_response = display.prompt('Variable name (enter for no name): ')

            # TODO: enforce var naming rules?
            if name_prompt_response != "":
                name = name_prompt_response

            # TODO: could prompt for which vault_id to use for each plaintext string
            #       currently, it will just be the default
            # could use private=True for shadowed input if useful
            prompt_response = display.prompt(msg)

            if prompt_response == '':
                raise AnsibleOptionsError('The plaintext provided from the prompt was empty, not encrypting')

            b_plaintext = to_bytes(prompt_response)
            b_plaintext_list.append((b_plaintext, self.FROM_PROMPT, name))

        # read from stdin
        if self.encrypt_string_read_stdin:
            if sys.stdout.isatty():
                display.display("Reading plaintext input from stdin. (ctrl-d to end input)", stderr=True)

            stdin_text = sys.stdin.read()
            if stdin_text == '':
                raise AnsibleOptionsError('stdin was empty, not encrypting')

            b_plaintext = to_bytes(stdin_text)

            # defaults to None
            name = self.options.encrypt_string_stdin_name
            b_plaintext_list.append((b_plaintext, self.FROM_STDIN, name))

        # use any leftover args as strings to encrypt
        # Try to match args up to --name options
        if hasattr(self.options, 'encrypt_string_names') and self.options.encrypt_string_names:
            name_and_text_list = list(zip(self.options.encrypt_string_names, args))

            # Some but not enough --name's to name each var
            if len(args) > len(name_and_text_list):
                # Trying to avoid ever showing the plaintext in the output, so this warning is vague to avoid that.
                display.display('The number of --name options do not match the number of args.',
                                stderr=True)
                display.display('The last named variable will be "%s". The rest will not have names.' % self.options.encrypt_string_names[-1],
                                stderr=True)

            # Add the rest of the args without specifying a name
            for extra_arg in args[len(name_and_text_list):]:
                name_and_text_list.append((None, extra_arg))

        # if no --names are provided, just use the args without a name.
        else:
            name_and_text_list = [(None, x) for x in args]

        # Convert the plaintext text objects to bytestrings and collect
        for name_and_text in name_and_text_list:
            name, plaintext = name_and_text

            if plaintext == '':
                raise AnsibleOptionsError('The plaintext provided from the command line args was empty, not encrypting')

            b_plaintext = to_bytes(plaintext)
            b_plaintext_list.append((b_plaintext, self.FROM_ARGS, name))

        # TODO: specify vault_id per string?
        # Format the encrypted strings and any corresponding stderr output
        outputs = self._format_output_vault_strings(b_plaintext_list, vault_id=self.encrypt_vault_id)

        for output in outputs:
            err = output.get('err', None)
            out = output.get('out', '')
            if err:
                sys.stderr.write(err)
            print(out)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

        # TODO: offer block or string ala eyaml

    def _format_output_vault_strings(self, b_plaintext_list, vault_id=None):
        # If we are only showing one item in the output, we don't need to included commented
        # delimiters in the text
        show_delimiter = False
        if len(b_plaintext_list) > 1:
            show_delimiter = True

        # list of dicts {'out': '', 'err': ''}
        output = []

        # Encrypt the plaintext, and format it into a yaml block that can be pasted into a playbook.
        # For more than one input, show some differentiating info in the stderr output so we can tell them
        # apart. If we have a var name, we include that in the yaml
        for index, b_plaintext_info in enumerate(b_plaintext_list):
            # (the text itself, which input it came from, its name)
            b_plaintext, src, name = b_plaintext_info

            b_ciphertext = self.editor.encrypt_bytes(b_plaintext, self.encrypt_secret,
                                                     vault_id=vault_id)

            # block formatting
            yaml_text = self.format_ciphertext_yaml(b_ciphertext, name=name)

            err_msg = None
            if show_delimiter:
                human_index = index + 1
                if name:
                    err_msg = '# The encrypted version of variable ("%s", the string #%d from %s).\n' % (name, human_index, src)
                else:
                    err_msg = '# The encrypted version of the string #%d from %s.)\n' % (human_index, src)
            output.append({'out': yaml_text, 'err': err_msg})

        return output

    def execute_decrypt(self):
        ''' decrypt the supplied file using the provided vault secret '''

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading ciphertext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Decryption successful", stderr=True)

    def execute_create(self):
        ''' create and open a file in an editor that will be encryped with the provided vault secret when closed'''

        if len(self.args) > 1:
            raise AnsibleOptionsError("ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0], self.encrypt_secret,
                                vault_id=self.encrypt_vault_id)

    def execute_edit(self):
        ''' open and decrypt an existing vaulted file in an editor, that will be encryped again when closed'''
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):
        ''' open, decrypt and view an existing vaulted file using a pager using the supplied vault secret '''

        for f in self.args:
            # Note: vault should return byte strings because it could encrypt
            # and decrypt binary files.  We are responsible for changing it to
            # unicode here because we are displaying it and therefore can make
            # the decision that the display doesn't have to be precisely what
            # the input was (leave that to decrypt instead)
            plaintext = self.editor.plaintext(f)
            self.pager(to_text(plaintext))

    def execute_rekey(self):
        ''' re-encrypt a vaulted file with a new secret, the previous secret is required '''
        for f in self.args:
            # FIXME: plumb in vault_id, use the default new_vault_secret for now
            self.editor.rekey_file(f, self.new_encrypt_secret,
                                   self.new_encrypt_vault_id)

        display.display("Rekey successful", stderr=True)
Ejemplo n.º 12
0
class Vault(object):

    def __init__(self, options=None):
        options = options or {}
        self.options = get_default_options()
        self.get_options(options)
        self.editor = None
        self.encrypt_secret = None
        self.encrypt_vault_id = None
        self.run()

    def run(self):
        loader = DataLoader()
        vault_ids = self.options.vault_ids
        default_vault_ids = C.DEFAULT_VAULT_IDENTITY_LIST
        vault_ids = default_vault_ids + vault_ids
        encrypt_vault_id = None
        vault_secrets = self.setup_vault_secrets(loader,
                                                 vault_ids=vault_ids,
                                                 vault_password_files=self.options.vault_password_files,
                                                 vault_pass=self.options.vault_pass)
        encrypt_secret = match_encrypt_secret(vault_secrets,
                                              encrypt_vault_id=encrypt_vault_id)

        self.encrypt_vault_id = encrypt_secret[0]
        self.encrypt_secret = encrypt_secret[1]
        loader.set_vault_secrets(vault_secrets)
        vault = VaultLib(vault_secrets)
        self.editor = VaultEditor(vault)
        # self.encrypt(self.options.file)

    def get_options(self, options):
        for key, value in options.items():
            item = {key: value}
            self.options = self.options._replace(**item)

    def encrypt(self, file):
        self.editor.encrypt_file(file, self.encrypt_secret,
                                 vault_id=self.encrypt_vault_id,
                                 output_file=self.options.output_file)

    def view(self, file):
        return self.editor.plaintext(file)

    def decrypt(self, files):
        if not self.editor:
            self.run()
        for f in files or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

    def decrypt_string(self, text):
        try:
            plaintext = self.editor.vault.decrypt(text)

            return str(plaintext, 'utf-8')
        except Exception as e:
            logger.error('decrypt string execption: ' + str(e), extra={'text': text})
            raise e

    def encrypt_string(self, text):
        text = bytes(text, 'utf-8')
        bytestext = self.editor.encrypt_bytes(text, self.encrypt_secret, vault_id=self.encrypt_vault_id)

        return str(bytestext, 'utf-8')

    def setup_vault_secrets(self, loader, vault_ids, vault_password_files=None, vault_pass=None):
        vault_secrets = []
        vault_password_files = vault_password_files or []
        if C.DEFAULT_VAULT_PASSWORD_FILE:
            vault_password_files.append(C.DEFAULT_VAULT_PASSWORD_FILE)
        vault_ids = Vault.build_vault_ids(vault_ids, vault_password_files, vault_pass)
        for vault_id_slug in vault_ids:
            vault_id_name, vault_id_value = Vault.split_vault_id(vault_id_slug)
            if vault_id_value == 'vault_pass':
                built_vault_id = vault_id_name or C.DEFAULT_VAULT_IDENTITY
                # load password
                vault_secret = VaultSecret(bytes(vault_pass, 'utf-8'))
                vault_secrets.append((built_vault_id, vault_secret))
                loader.set_vault_secrets(vault_secrets)
                continue

            file_vault_secret = get_file_vault_secret(filename=vault_id_value,
                                                      vault_id=vault_id_name,
                                                      loader=loader)
            # an invalid password file will error globally
            file_vault_secret.load()
            if vault_id_name:
                vault_secrets.append((vault_id_name, file_vault_secret))
            else:
                vault_secrets.append((C.DEFAULT_VAULT_IDENTITY, file_vault_secret))

            # update loader with as-yet-known vault secrets
            loader.set_vault_secrets(vault_secrets)

        return vault_secrets

    @staticmethod
    def build_vault_ids(vault_ids,
                        vault_password_files=None,
                        vault_pass=None):
        vault_password_files = vault_password_files or []
        vault_ids = vault_ids or []

        # convert vault_password_files into vault_ids slugs
        for password_file in vault_password_files:
            id_slug = '%s@%s' % (C.DEFAULT_VAULT_IDENTITY, password_file)
            vault_ids.append(id_slug)

        if vault_pass or (not vault_ids):
            id_slug = '%s@%s' % (C.DEFAULT_VAULT_IDENTITY, 'vault_pass')
            vault_ids.append(id_slug)

        return vault_ids

    @staticmethod
    def split_vault_id(vault_id):
        # return (before_@, after_@)
        # if no @, return whole string as after_
        if '@' not in vault_id:
            return (None, vault_id)

        parts = vault_id.split('@', 1)
        ret = tuple(parts)
        return ret

    @staticmethod
    def is_encrypted(data):
        if type(data) != str:
            return False

        header = '$ANSIBLE_VAULT'
        # try:
        #     text = to_text(data, encoding='ascii', errors='strict', nonstring='strict')
        #     b_data = to_bytes(text, encoding='ascii', errors='strict')
        # except (UnicodeError, TypeError):
        #     return False

        if data.startswith(header):
            return True
        return False
Ejemplo n.º 13
0
class VaultCLI(CLI):
    """ Vault command line class """

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "rekey", "view")

    def __init__(self, args, display=None):

        self.vault_pass = None
        super(VaultCLI, self).__init__(args, display)

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage="usage: %%prog [%s] [--help] [options] vaultfile.yml" %
            "|".join(self.VALID_ACTIONS),
            epilog=
            "\nSee '%s <command> --help' for more information on a specific command.\n\n"
            % os.path.basename(sys.argv[0]))

        self.set_action()

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        self.options, self.args = self.parser.parse_args()
        self.display.verbosity = self.options.verbosity

        can_output = ['encrypt', 'decrypt']

        if self.action not in can_output:
            if self.options.output_file:
                raise AnsibleOptionsError(
                    "The --output option can be used only with ansible-vault %s"
                    % '/'.join(can_output))
            if len(self.args) == 0:
                raise AnsibleOptionsError(
                    "Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError(
                    "At most one input file may be used with the --output option"
                )

    def run(self):

        super(VaultCLI, self).run()

        if self.options.vault_password_file:
            # read vault_pass from a file
            self.vault_pass = CLI.read_vault_password_file(
                self.options.vault_password_file)
        else:
            self.vault_pass, _ = self.ask_vault_passwords(
                ask_vault_pass=True,
                ask_new_vault_pass=False,
                confirm_new=False)

        if self.options.new_vault_password_file:
            # for rekey only
            self.new_vault_pass = CLI.read_vault_password_file(
                self.options.new_vault_password_file)

        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_encrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            self.display.display("Reading plaintext input from stdin",
                                 stderr=True)

        for f in self.args or ['-']:
            self.editor.encrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            self.display.display("Encryption successful", stderr=True)

    def execute_decrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            self.display.display("Reading ciphertext input from stdin",
                                 stderr=True)

        for f in self.args or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            self.display.display("Decryption successful", stderr=True)

    def execute_create(self):

        if len(self.args) > 1:
            raise AnsibleOptionsError(
                "ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0])

    def execute_edit(self):
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):

        for f in self.args:
            self.editor.view_file(f)

    def execute_rekey(self):
        for f in self.args:
            if not (os.path.isfile(f)):
                raise AnsibleError(f + " does not exist")

        if self.new_vault_pass:
            new_password = self.new_vault_pass
        else:
            __, new_password = self.ask_vault_passwords(
                ask_vault_pass=False,
                ask_new_vault_pass=True,
                confirm_new=True)

        for f in self.args:
            self.editor.rekey_file(f, new_password)

        self.display.display("Rekey successful", stderr=True)
Ejemplo n.º 14
0
class VaultCLI(CLI):
    """ Vault command line class """

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "rekey", "view")

    def __init__(self, args, display=None):

        self.vault_pass = None
        super(VaultCLI, self).__init__(args, display)

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage="usage: %%prog [%s] [--help] [options] vaultfile.yml" % "|".join(self.VALID_ACTIONS),
            epilog="\nSee '%s <command> --help' for more information on a specific command.\n\n"
            % os.path.basename(sys.argv[0]),
        )

        self.set_action()

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        self.options, self.args = self.parser.parse_args()
        self.display.verbosity = self.options.verbosity

        can_output = ["encrypt", "decrypt"]

        if self.action not in can_output:
            if self.options.output_file:
                raise AnsibleOptionsError(
                    "The --output option can be used only with ansible-vault %s" % "/".join(can_output)
                )
            if len(self.args) == 0:
                raise AnsibleOptionsError("Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError("At most one input file may be used with the --output option")

    def run(self):

        super(VaultCLI, self).run()
        loader = DataLoader()

        if self.options.vault_password_file:
            # read vault_pass from a file
            self.vault_pass = CLI.read_vault_password_file(self.options.vault_password_file, loader)
        else:
            self.vault_pass, _ = self.ask_vault_passwords(
                ask_vault_pass=True, ask_new_vault_pass=False, confirm_new=False
            )

        if self.options.new_vault_password_file:
            # for rekey only
            self.new_vault_pass = CLI.read_vault_password_file(self.options.new_vault_password_file, loader)

        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_encrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            self.display.display("Reading plaintext input from stdin", stderr=True)

        for f in self.args or ["-"]:
            self.editor.encrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            self.display.display("Encryption successful", stderr=True)

    def execute_decrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            self.display.display("Reading ciphertext input from stdin", stderr=True)

        for f in self.args or ["-"]:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            self.display.display("Decryption successful", stderr=True)

    def execute_create(self):

        if len(self.args) > 1:
            raise AnsibleOptionsError("ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0])

    def execute_edit(self):
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):

        for f in self.args:
            self.editor.view_file(f)

    def execute_rekey(self):
        for f in self.args:
            if not (os.path.isfile(f)):
                raise AnsibleError(f + " does not exist")

        if self.new_vault_pass:
            new_password = self.new_vault_pass
        else:
            __, new_password = self.ask_vault_passwords(ask_vault_pass=False, ask_new_vault_pass=True, confirm_new=True)

        for f in self.args:
            self.editor.rekey_file(f, new_password)

        self.display.display("Rekey successful", stderr=True)
Ejemplo n.º 15
0
class VaultCLI(CLI):
    """ Vault command line class """

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "rekey", "view")

    def __init__(self, args):

        self.b_vault_pass = None
        self.b_new_vault_pass = None
        super(VaultCLI, self).__init__(args)

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage = "usage: %%prog [%s] [--help] [options] vaultfile.yml" % "|".join(self.VALID_ACTIONS),
            epilog = "\nSee '%s <command> --help' for more information on a specific command.\n\n" % os.path.basename(sys.argv[0])
        )

        self.set_action()

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        self.options, self.args = self.parser.parse_args(self.args[1:])
        display.verbosity = self.options.verbosity

        can_output = ['encrypt', 'decrypt']

        if self.action not in can_output:
            if self.options.output_file:
                raise AnsibleOptionsError("The --output option can be used only with ansible-vault %s" % '/'.join(can_output))
            if len(self.args) == 0:
                raise AnsibleOptionsError("Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError("At most one input file may be used with the --output option")

    def run(self):

        super(VaultCLI, self).run()
        loader = DataLoader()

        # set default restrictive umask
        old_umask = os.umask(0o077)

        if self.options.vault_password_file:
            # read vault_pass from a file
            self.b_vault_pass = CLI.read_vault_password_file(self.options.vault_password_file, loader)

        if self.options.new_vault_password_file:
            # for rekey only
            self.b_new_vault_pass = CLI.read_vault_password_file(self.options.new_vault_password_file, loader)

        if not self.b_vault_pass or self.options.ask_vault_pass:
            self.b_vault_pass = self.ask_vault_passwords()

        if not self.b_vault_pass:
            raise AnsibleOptionsError("A password is required to use Ansible's Vault")

        if self.action == 'rekey':
            if not self.b_new_vault_pass:
                self.b_new_vault_pass = self.ask_new_vault_passwords()
            if not self.b_new_vault_pass:
                raise AnsibleOptionsError("A password is required to rekey Ansible's Vault")

        self.editor = VaultEditor(self.b_vault_pass)

        self.execute()

        # and restore umask
        os.umask(old_umask)

    def execute_encrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading plaintext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.encrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

    def execute_decrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading ciphertext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Decryption successful", stderr=True)

    def execute_create(self):

        if len(self.args) > 1:
            raise AnsibleOptionsError("ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0])

    def execute_edit(self):
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):

        for f in self.args:
            # Note: vault should return byte strings because it could encrypt
            # and decrypt binary files.  We are responsible for changing it to
            # unicode here because we are displaying it and therefore can make
            # the decision that the display doesn't have to be precisely what
            # the input was (leave that to decrypt instead)
            self.pager(to_text(self.editor.plaintext(f)))

    def execute_rekey(self):
        for f in self.args:
            if not (os.path.isfile(f)):
                raise AnsibleError(f + " does not exist")

        for f in self.args:
            self.editor.rekey_file(f, self.b_new_vault_pass)

        display.display("Rekey successful", stderr=True)
Ejemplo n.º 16
0
class VaultCLI(CLI):
    ''' can encrypt any structured data file used by Ansible.
    This can include *group_vars/* or *host_vars/* inventory variables,
    variables loaded by *include_vars* or *vars_files*, or variable files
    passed on the ansible-playbook command line with *-e @file.yml* or *-e @file.json*.
    Role variables and defaults are also included!

    Because Ansible tasks, handlers, and other objects are data, these can also be encrypted with vault.
    If you'd like to not expose what variables you are using, you can keep an individual task file entirely encrypted.
    '''

    FROM_STDIN = "stdin"
    FROM_ARGS = "the command line args"
    FROM_PROMPT = "the interactive prompt"

    def __init__(self, args):

        self.b_vault_pass = None
        self.b_new_vault_pass = None
        self.encrypt_string_read_stdin = False

        self.encrypt_secret = None
        self.encrypt_vault_id = None
        self.new_encrypt_secret = None
        self.new_encrypt_vault_id = None

        super(VaultCLI, self).__init__(args)

    def init_parser(self):
        super(VaultCLI, self).init_parser(
            desc="encryption/decryption utility for Ansible data files",
            epilog="\nSee '%s <command> --help' for more information on a specific command.\n\n" % os.path.basename(sys.argv[0])
        )

        common = opt_help.argparse.ArgumentParser(add_help=False)
        opt_help.add_vault_options(common)
        opt_help.add_verbosity_options(common)

        subparsers = self.parser.add_subparsers(dest='action')
        subparsers.required = True

        output = opt_help.argparse.ArgumentParser(add_help=False)
        output.add_argument('--output', default=None, dest='output_file',
                            help='output file name for encrypt or decrypt; use - for stdout',
                            type=opt_help.unfrack_path())

        # For encrypting actions, we can also specify which of multiple vault ids should be used for encrypting
        vault_id = opt_help.argparse.ArgumentParser(add_help=False)
        vault_id.add_argument('--encrypt-vault-id', default=[], dest='encrypt_vault_id',
                              action='store', type=str,
                              help='the vault id used to encrypt (required if more than one vault-id is provided)')

        create_parser = subparsers.add_parser('create', help='Create new vault encrypted file', parents=[vault_id, common])
        create_parser.set_defaults(func=self.execute_create)
        create_parser.add_argument('args', help='Filename', metavar='file_name', nargs='*')

        decrypt_parser = subparsers.add_parser('decrypt', help='Decrypt vault encrypted file', parents=[output, common])
        decrypt_parser.set_defaults(func=self.execute_decrypt)
        decrypt_parser.add_argument('args', help='Filename', metavar='file_name', nargs='*')

        edit_parser = subparsers.add_parser('edit', help='Edit vault encrypted file', parents=[vault_id, common])
        edit_parser.set_defaults(func=self.execute_edit)
        edit_parser.add_argument('args', help='Filename', metavar='file_name', nargs='*')

        view_parser = subparsers.add_parser('view', help='View vault encrypted file', parents=[common])
        view_parser.set_defaults(func=self.execute_view)
        view_parser.add_argument('args', help='Filename', metavar='file_name', nargs='*')

        encrypt_parser = subparsers.add_parser('encrypt', help='Encrypt YAML file', parents=[common, output, vault_id])
        encrypt_parser.set_defaults(func=self.execute_encrypt)
        encrypt_parser.add_argument('args', help='Filename', metavar='file_name', nargs='*')

        enc_str_parser = subparsers.add_parser('encrypt_string', help='Encrypt a string', parents=[common, output, vault_id])
        enc_str_parser.set_defaults(func=self.execute_encrypt_string)
        enc_str_parser.add_argument('args', help='String to encrypt', metavar='string_to_encrypt', nargs='*')
        enc_str_parser.add_argument('-p', '--prompt', dest='encrypt_string_prompt',
                                    action='store_true',
                                    help="Prompt for the string to encrypt")
        enc_str_parser.add_argument('--show-input', dest='show_string_input', default=False, action='store_true',
                                    help='Do not hide input when prompted for the string to encrypt')
        enc_str_parser.add_argument('-n', '--name', dest='encrypt_string_names',
                                    action='append',
                                    help="Specify the variable name")
        enc_str_parser.add_argument('--stdin-name', dest='encrypt_string_stdin_name',
                                    default=None,
                                    help="Specify the variable name for stdin")

        rekey_parser = subparsers.add_parser('rekey', help='Re-key a vault encrypted file', parents=[common, vault_id])
        rekey_parser.set_defaults(func=self.execute_rekey)
        rekey_new_group = rekey_parser.add_mutually_exclusive_group()
        rekey_new_group.add_argument('--new-vault-password-file', default=None, dest='new_vault_password_file',
                                     help="new vault password file for rekey", type=opt_help.unfrack_path())
        rekey_new_group.add_argument('--new-vault-id', default=None, dest='new_vault_id', type=str,
                                     help='the new vault identity to use for rekey')
        rekey_parser.add_argument('args', help='Filename', metavar='file_name', nargs='*')

    def post_process_args(self, options):
        options = super(VaultCLI, self).post_process_args(options)

        display.verbosity = options.verbosity

        if options.vault_ids:
            for vault_id in options.vault_ids:
                if u';' in vault_id:
                    raise AnsibleOptionsError("'%s' is not a valid vault id. The character ';' is not allowed in vault ids" % vault_id)

        if getattr(options, 'output_file', None) and len(options.args) > 1:
            raise AnsibleOptionsError("At most one input file may be used with the --output option")

        if options.action == 'encrypt_string':
            if '-' in options.args or not options.args or options.encrypt_string_stdin_name:
                self.encrypt_string_read_stdin = True

            # TODO: prompting from stdin and reading from stdin seem mutually exclusive, but verify that.
            if options.encrypt_string_prompt and self.encrypt_string_read_stdin:
                raise AnsibleOptionsError('The --prompt option is not supported if also reading input from stdin')

        return options

    def run(self):
        super(VaultCLI, self).run()
        loader = DataLoader()

        # set default restrictive umask
        old_umask = os.umask(0o077)

        vault_ids = list(context.CLIARGS['vault_ids'])

        # there are 3 types of actions, those that just 'read' (decrypt, view) and only
        # need to ask for a password once, and those that 'write' (create, encrypt) that
        # ask for a new password and confirm it, and 'read/write (rekey) that asks for the
        # old password, then asks for a new one and confirms it.

        default_vault_ids = C.DEFAULT_VAULT_IDENTITY_LIST
        vault_ids = default_vault_ids + vault_ids

        action = context.CLIARGS['action']

        # TODO: instead of prompting for these before, we could let VaultEditor
        #       call a callback when it needs it.
        if action in ['decrypt', 'view', 'rekey', 'edit']:
            vault_secrets = self.setup_vault_secrets(loader, vault_ids=vault_ids,
                                                     vault_password_files=list(context.CLIARGS['vault_password_files']),
                                                     ask_vault_pass=context.CLIARGS['ask_vault_pass'])
            if not vault_secrets:
                raise AnsibleOptionsError("A vault password is required to use Ansible's Vault")

        if action in ['encrypt', 'encrypt_string', 'create']:

            encrypt_vault_id = None
            # no --encrypt-vault-id context.CLIARGS['encrypt_vault_id'] for 'edit'
            if action not in ['edit']:
                encrypt_vault_id = context.CLIARGS['encrypt_vault_id'] or C.DEFAULT_VAULT_ENCRYPT_IDENTITY

            vault_secrets = None
            vault_secrets = \
                self.setup_vault_secrets(loader,
                                         vault_ids=vault_ids,
                                         vault_password_files=list(context.CLIARGS['vault_password_files']),
                                         ask_vault_pass=context.CLIARGS['ask_vault_pass'],
                                         create_new_password=True)

            if len(vault_secrets) > 1 and not encrypt_vault_id:
                raise AnsibleOptionsError("The vault-ids %s are available to encrypt. Specify the vault-id to encrypt with --encrypt-vault-id" %
                                          ','.join([x[0] for x in vault_secrets]))

            if not vault_secrets:
                raise AnsibleOptionsError("A vault password is required to use Ansible's Vault")

            encrypt_secret = match_encrypt_secret(vault_secrets,
                                                  encrypt_vault_id=encrypt_vault_id)

            # only one secret for encrypt for now, use the first vault_id and use its first secret
            # TODO: exception if more than one?
            self.encrypt_vault_id = encrypt_secret[0]
            self.encrypt_secret = encrypt_secret[1]

        if action in ['rekey']:
            encrypt_vault_id = context.CLIARGS['encrypt_vault_id'] or C.DEFAULT_VAULT_ENCRYPT_IDENTITY
            # print('encrypt_vault_id: %s' % encrypt_vault_id)
            # print('default_encrypt_vault_id: %s' % default_encrypt_vault_id)

            # new_vault_ids should only ever be one item, from
            # load the default vault ids if we are using encrypt-vault-id
            new_vault_ids = []
            if encrypt_vault_id:
                new_vault_ids = default_vault_ids
            if context.CLIARGS['new_vault_id']:
                new_vault_ids.append(context.CLIARGS['new_vault_id'])

            new_vault_password_files = []
            if context.CLIARGS['new_vault_password_file']:
                new_vault_password_files.append(context.CLIARGS['new_vault_password_file'])

            new_vault_secrets = \
                self.setup_vault_secrets(loader,
                                         vault_ids=new_vault_ids,
                                         vault_password_files=new_vault_password_files,
                                         ask_vault_pass=context.CLIARGS['ask_vault_pass'],
                                         create_new_password=True)

            if not new_vault_secrets:
                raise AnsibleOptionsError("A new vault password is required to use Ansible's Vault rekey")

            # There is only one new_vault_id currently and one new_vault_secret, or we
            # use the id specified in --encrypt-vault-id
            new_encrypt_secret = match_encrypt_secret(new_vault_secrets,
                                                      encrypt_vault_id=encrypt_vault_id)

            self.new_encrypt_vault_id = new_encrypt_secret[0]
            self.new_encrypt_secret = new_encrypt_secret[1]

        loader.set_vault_secrets(vault_secrets)

        # FIXME: do we need to create VaultEditor here? its not reused
        vault = VaultLib(vault_secrets)
        self.editor = VaultEditor(vault)

        context.CLIARGS['func']()

        # and restore umask
        os.umask(old_umask)

    def execute_encrypt(self):
        ''' encrypt the supplied file using the provided vault secret '''

        if not context.CLIARGS['args'] and sys.stdin.isatty():
            display.display("Reading plaintext input from stdin", stderr=True)

        for f in context.CLIARGS['args'] or ['-']:
            # Fixme: use the correct vau
            self.editor.encrypt_file(f, self.encrypt_secret,
                                     vault_id=self.encrypt_vault_id,
                                     output_file=context.CLIARGS['output_file'])

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

    @staticmethod
    def format_ciphertext_yaml(b_ciphertext, indent=None, name=None):
        indent = indent or 10

        block_format_var_name = ""
        if name:
            block_format_var_name = "%s: " % name

        block_format_header = "%s!vault |" % block_format_var_name
        lines = []
        vault_ciphertext = to_text(b_ciphertext)

        lines.append(block_format_header)
        for line in vault_ciphertext.splitlines():
            lines.append('%s%s' % (' ' * indent, line))

        yaml_ciphertext = '\n'.join(lines)
        return yaml_ciphertext

    def execute_encrypt_string(self):
        ''' encrypt the supplied string using the provided vault secret '''
        b_plaintext = None

        # Holds tuples (the_text, the_source_of_the_string, the variable name if its provided).
        b_plaintext_list = []

        # remove the non-option '-' arg (used to indicate 'read from stdin') from the candidate args so
        # we don't add it to the plaintext list
        args = [x for x in context.CLIARGS['args'] if x != '-']

        # We can prompt and read input, or read from stdin, but not both.
        if context.CLIARGS['encrypt_string_prompt']:
            msg = "String to encrypt: "

            name = None
            name_prompt_response = display.prompt('Variable name (enter for no name): ')

            # TODO: enforce var naming rules?
            if name_prompt_response != "":
                name = name_prompt_response

            # TODO: could prompt for which vault_id to use for each plaintext string
            #       currently, it will just be the default
            hide_input = not context.CLIARGS['show_string_input']
            if hide_input:
                msg = "String to encrypt (hidden): "
            else:
                msg = "String to encrypt:"

            prompt_response = display.prompt(msg, private=hide_input)

            if prompt_response == '':
                raise AnsibleOptionsError('The plaintext provided from the prompt was empty, not encrypting')

            b_plaintext = to_bytes(prompt_response)
            b_plaintext_list.append((b_plaintext, self.FROM_PROMPT, name))

        # read from stdin
        if self.encrypt_string_read_stdin:
            if sys.stdout.isatty():
                display.display("Reading plaintext input from stdin. (ctrl-d to end input, twice if your content does not already have a newline)", stderr=True)

            stdin_text = sys.stdin.read()
            if stdin_text == '':
                raise AnsibleOptionsError('stdin was empty, not encrypting')

            if sys.stdout.isatty() and not stdin_text.endswith("\n"):
                display.display("\n")

            b_plaintext = to_bytes(stdin_text)

            # defaults to None
            name = context.CLIARGS['encrypt_string_stdin_name']
            b_plaintext_list.append((b_plaintext, self.FROM_STDIN, name))

        # use any leftover args as strings to encrypt
        # Try to match args up to --name options
        if context.CLIARGS.get('encrypt_string_names', False):
            name_and_text_list = list(zip(context.CLIARGS['encrypt_string_names'], args))

            # Some but not enough --name's to name each var
            if len(args) > len(name_and_text_list):
                # Trying to avoid ever showing the plaintext in the output, so this warning is vague to avoid that.
                display.display('The number of --name options do not match the number of args.',
                                stderr=True)
                display.display('The last named variable will be "%s". The rest will not have'
                                ' names.' % context.CLIARGS['encrypt_string_names'][-1],
                                stderr=True)

            # Add the rest of the args without specifying a name
            for extra_arg in args[len(name_and_text_list):]:
                name_and_text_list.append((None, extra_arg))

        # if no --names are provided, just use the args without a name.
        else:
            name_and_text_list = [(None, x) for x in args]

        # Convert the plaintext text objects to bytestrings and collect
        for name_and_text in name_and_text_list:
            name, plaintext = name_and_text

            if plaintext == '':
                raise AnsibleOptionsError('The plaintext provided from the command line args was empty, not encrypting')

            b_plaintext = to_bytes(plaintext)
            b_plaintext_list.append((b_plaintext, self.FROM_ARGS, name))

        # TODO: specify vault_id per string?
        # Format the encrypted strings and any corresponding stderr output
        outputs = self._format_output_vault_strings(b_plaintext_list, vault_id=self.encrypt_vault_id)

        for output in outputs:
            err = output.get('err', None)
            out = output.get('out', '')
            if err:
                sys.stderr.write(err)
            print(out)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

        # TODO: offer block or string ala eyaml

    def _format_output_vault_strings(self, b_plaintext_list, vault_id=None):
        # If we are only showing one item in the output, we don't need to included commented
        # delimiters in the text
        show_delimiter = False
        if len(b_plaintext_list) > 1:
            show_delimiter = True

        # list of dicts {'out': '', 'err': ''}
        output = []

        # Encrypt the plaintext, and format it into a yaml block that can be pasted into a playbook.
        # For more than one input, show some differentiating info in the stderr output so we can tell them
        # apart. If we have a var name, we include that in the yaml
        for index, b_plaintext_info in enumerate(b_plaintext_list):
            # (the text itself, which input it came from, its name)
            b_plaintext, src, name = b_plaintext_info

            b_ciphertext = self.editor.encrypt_bytes(b_plaintext, self.encrypt_secret,
                                                     vault_id=vault_id)

            # block formatting
            yaml_text = self.format_ciphertext_yaml(b_ciphertext, name=name)

            err_msg = None
            if show_delimiter:
                human_index = index + 1
                if name:
                    err_msg = '# The encrypted version of variable ("%s", the string #%d from %s).\n' % (name, human_index, src)
                else:
                    err_msg = '# The encrypted version of the string #%d from %s.)\n' % (human_index, src)
            output.append({'out': yaml_text, 'err': err_msg})

        return output

    def execute_decrypt(self):
        ''' decrypt the supplied file using the provided vault secret '''

        if not context.CLIARGS['args'] and sys.stdin.isatty():
            display.display("Reading ciphertext input from stdin", stderr=True)

        for f in context.CLIARGS['args'] or ['-']:
            self.editor.decrypt_file(f, output_file=context.CLIARGS['output_file'])

        if sys.stdout.isatty():
            display.display("Decryption successful", stderr=True)

    def execute_create(self):
        ''' create and open a file in an editor that will be encrypted with the provided vault secret when closed'''

        if len(context.CLIARGS['args']) != 1:
            raise AnsibleOptionsError("ansible-vault create can take only one filename argument")

        self.editor.create_file(context.CLIARGS['args'][0], self.encrypt_secret,
                                vault_id=self.encrypt_vault_id)

    def execute_edit(self):
        ''' open and decrypt an existing vaulted file in an editor, that will be encrypted again when closed'''
        for f in context.CLIARGS['args']:
            self.editor.edit_file(f)

    def execute_view(self):
        ''' open, decrypt and view an existing vaulted file using a pager using the supplied vault secret '''

        for f in context.CLIARGS['args']:
            # Note: vault should return byte strings because it could encrypt
            # and decrypt binary files.  We are responsible for changing it to
            # unicode here because we are displaying it and therefore can make
            # the decision that the display doesn't have to be precisely what
            # the input was (leave that to decrypt instead)
            plaintext = self.editor.plaintext(f)
            self.pager(to_text(plaintext))

    def execute_rekey(self):
        ''' re-encrypt a vaulted file with a new secret, the previous secret is required '''
        for f in context.CLIARGS['args']:
            # FIXME: plumb in vault_id, use the default new_vault_secret for now
            self.editor.rekey_file(f, self.new_encrypt_secret,
                                   self.new_encrypt_vault_id)

        display.display("Rekey successful", stderr=True)
Ejemplo n.º 17
0
class VaultCLI(CLI):
    """ Vault command line class """

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "encrypt_string",
                     "rekey", "view")

    FROM_STDIN = "stdin"
    FROM_ARGS = "the command line args"
    FROM_PROMPT = "the interactive prompt"

    def __init__(self, args):

        self.vault_pass = None
        self.new_vault_pass = None

        self.encrypt_string_read_stdin = False

        super(VaultCLI, self).__init__(args)

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage="usage: %%prog [%s] [--help] [options] vaultfile.yml" %
            "|".join(self.VALID_ACTIONS),
            epilog=
            "\nSee '%s <command> --help' for more information on a specific command.\n\n"
            % os.path.basename(sys.argv[0]))

        self.set_action()

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        # I have no prefence for either dash or underscore
        elif self.action == "encrypt_string":
            self.parser.add_option('-p',
                                   '--prompt',
                                   dest='encrypt_string_prompt',
                                   action='store_true',
                                   help="Prompt for the string to encrypt")
            self.parser.add_option('-n',
                                   '--name',
                                   dest='encrypt_string_names',
                                   action='append',
                                   help="Specify the variable name")
            self.parser.add_option('--stdin-name',
                                   dest='encrypt_string_stdin_name',
                                   default=None,
                                   help="Specify the variable name for stdin")
            self.parser.set_usage(
                "usage: %prog encrypt-string [--prompt] [options] string_to_encrypt"
            )
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        super(VaultCLI, self).parse()

        display.verbosity = self.options.verbosity

        can_output = ['encrypt', 'decrypt', 'encrypt_string']

        if self.action not in can_output:
            if self.options.output_file:
                raise AnsibleOptionsError(
                    "The --output option can be used only with ansible-vault %s"
                    % '/'.join(can_output))
            if len(self.args) == 0:
                raise AnsibleOptionsError(
                    "Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError(
                    "At most one input file may be used with the --output option"
                )

        if self.action == 'encrypt_string':
            if '-' in self.args or len(
                    self.args) == 0 or self.options.encrypt_string_stdin_name:
                self.encrypt_string_read_stdin = True

            # TODO: prompting from stdin and reading from stdin seem
            #       mutually exclusive, but verify that.
            if self.options.encrypt_string_prompt and self.encrypt_string_read_stdin:
                raise AnsibleOptionsError(
                    'The --prompt option is not supported if also reading input from stdin'
                )

    def run(self):

        super(VaultCLI, self).run()
        loader = DataLoader()

        # set default restrictive umask
        old_umask = os.umask(0o077)

        if self.options.vault_password_file:
            # read vault_pass from a file
            self.vault_pass = CLI.read_vault_password_file(
                self.options.vault_password_file, loader)

        if self.options.new_vault_password_file:
            # for rekey only
            self.new_vault_pass = CLI.read_vault_password_file(
                self.options.new_vault_password_file, loader)

        if not self.vault_pass or self.options.ask_vault_pass:
            self.vault_pass = self.ask_vault_passwords()

        if not self.vault_pass:
            raise AnsibleOptionsError(
                "A password is required to use Ansible's Vault")

        if self.action == 'rekey':
            if not self.new_vault_pass:
                self.new_vault_pass = self.ask_new_vault_passwords()
            if not self.new_vault_pass:
                raise AnsibleOptionsError(
                    "A password is required to rekey Ansible's Vault")

        if self.action == 'encrypt_string':
            if self.options.encrypt_string_prompt:
                self.encrypt_string_prompt = True

        self.editor = VaultEditor(self.vault_pass)

        self.execute()

        # and restore umask
        os.umask(old_umask)

    def execute_encrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading plaintext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.encrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

    def format_ciphertext_yaml(self, b_ciphertext, indent=None, name=None):
        indent = indent or 10

        block_format_var_name = ""
        if name:
            block_format_var_name = "%s: " % name

        block_format_header = "%s!vault-encrypted |" % block_format_var_name
        lines = []
        vault_ciphertext = to_text(b_ciphertext)

        lines.append(block_format_header)
        for line in vault_ciphertext.splitlines():
            lines.append('%s%s' % (' ' * indent, line))

        yaml_ciphertext = '\n'.join(lines)
        return yaml_ciphertext

    def execute_encrypt_string(self):
        b_plaintext = None

        # Holds tuples (the_text, the_source_of_the_string, the variable name if its provided).
        b_plaintext_list = []

        # remove the non-option '-' arg (used to indicate 'read from stdin') from the candidate args so
        # we dont add it to the plaintext list
        args = [x for x in self.args if x != '-']

        # We can prompt and read input, or read from stdin, but not both.
        if self.options.encrypt_string_prompt:
            msg = "String to encrypt: "

            name = None
            name_prompt_response = display.prompt(
                'Variable name (enter for no name): ')

            # TODO: enforce var naming rules?
            if name_prompt_response != "":
                name = name_prompt_response

            # could use private=True for shadowed input if useful
            prompt_response = display.prompt(msg)

            if prompt_response == '':
                raise AnsibleOptionsError(
                    'The plaintext provided from the prompt was empty, not encrypting'
                )

            b_plaintext = to_bytes(prompt_response)
            b_plaintext_list.append((b_plaintext, self.FROM_PROMPT, name))

        # read from stdin
        if self.encrypt_string_read_stdin:
            if sys.stdout.isatty():
                display.display(
                    "Reading plaintext input from stdin. (ctrl-d to end input)",
                    stderr=True)

            stdin_text = sys.stdin.read()
            if stdin_text == '':
                raise AnsibleOptionsError('stdin was empty, not encrypting')

            b_plaintext = to_bytes(stdin_text)

            # defaults to None
            name = self.options.encrypt_string_stdin_name
            b_plaintext_list.append((b_plaintext, self.FROM_STDIN, name))

        # use any leftover args as strings to encrypt
        # Try to match args up to --name options
        if hasattr(
                self.options,
                'encrypt_string_names') and self.options.encrypt_string_names:
            name_and_text_list = list(
                zip(self.options.encrypt_string_names, args))

            # Some but not enough --name's to name each var
            if len(args) > len(name_and_text_list):
                # Trying to avoid ever showing the plaintext in the output, so this warning is vague to avoid that.
                display.display(
                    'The number of --name options do not match the number of args.',
                    stderr=True)
                display.display(
                    'The last named variable will be "%s". The rest will not have names.'
                    % self.options.encrypt_string_names[-1],
                    stderr=True)

            # Add the rest of the args without specifying a name
            for extra_arg in args[len(name_and_text_list):]:
                name_and_text_list.append((None, extra_arg))

        # if no --names are provided, just use the args without a name.
        else:
            name_and_text_list = [(None, x) for x in args]

        # Convert the plaintext text objects to bytestrings and collect
        for name_and_text in name_and_text_list:
            name, plaintext = name_and_text

            if plaintext == '':
                raise AnsibleOptionsError(
                    'The plaintext provided from the command line args was empty, not encrypting'
                )

            b_plaintext = to_bytes(plaintext)
            b_plaintext_list.append((b_plaintext, self.FROM_ARGS, name))

        # Format the encrypted strings and any corresponding stderr output
        outputs = self._format_output_vault_strings(b_plaintext_list)

        for output in outputs:
            err = output.get('err', None)
            out = output.get('out', '')
            if err:
                sys.stderr.write(err)
            print(out)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

        # TODO: offer block or string ala eyaml

    def _format_output_vault_strings(self, b_plaintext_list):
        # If we are only showing one item in the output, we dont need to included commented
        # delimiters in the text
        show_delimiter = False
        if len(b_plaintext_list) > 1:
            show_delimiter = True

        # list of dicts {'out': '', 'err': ''}
        output = []

        # Encrypt the plaintext, and format it into a yaml block that can be pasted into a playbook.
        # For more than one input, show some differentiating info in the stderr output so we can tell them
        # apart. If we have a var name, we include that in the yaml
        for index, b_plaintext_info in enumerate(b_plaintext_list):
            # (the text itself, which input it came from, its name)
            b_plaintext, src, name = b_plaintext_info
            b_ciphertext = self.editor.encrypt_bytes(b_plaintext)

            # block formatting
            yaml_text = self.format_ciphertext_yaml(b_ciphertext, name=name)

            err_msg = None
            if show_delimiter:
                human_index = index + 1
                if name:
                    err_msg = '# The encrypted version of variable ("%s", the string #%d from %s).\n' % (
                        name, human_index, src)
                else:
                    err_msg = '# The encrypted version of the string #%d from %s.)\n' % (
                        human_index, src)
            output.append({'out': yaml_text, 'err': err_msg})

        return output

    def execute_decrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading ciphertext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Decryption successful", stderr=True)

    def execute_create(self):

        if len(self.args) > 1:
            raise AnsibleOptionsError(
                "ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0])

    def execute_edit(self):
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):

        for f in self.args:
            # Note: vault should return byte strings because it could encrypt
            # and decrypt binary files.  We are responsible for changing it to
            # unicode here because we are displaying it and therefore can make
            # the decision that the display doesn't have to be precisely what
            # the input was (leave that to decrypt instead)
            self.pager(to_text(self.editor.plaintext(f)))

    def execute_rekey(self):
        for f in self.args:
            if not (os.path.isfile(f)):
                raise AnsibleError(f + " does not exist")

        for f in self.args:
            self.editor.rekey_file(f, self.new_vault_pass)

        display.display("Rekey successful", stderr=True)
Ejemplo n.º 18
0
class VaultCLI(CLI):
    """ Vault command line class """

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "rekey", "view")

    def __init__(self, args, display=None):

        self.vault_pass = None
        super(VaultCLI, self).__init__(args, display)

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage="usage: %%prog [%s] [--help] [options] vaultfile.yml" %
            "|".join(self.VALID_ACTIONS),
            epilog=
            "\nSee '%s <command> --help' for more information on a specific command.\n\n"
            % os.path.basename(sys.argv[0]))

        self.set_action()

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        self.options, self.args = self.parser.parse_args()
        self.display.verbosity = self.options.verbosity

        if len(self.args) == 0:
            raise AnsibleOptionsError(
                "Vault requires at least one filename as a parameter")

    def run(self):

        super(VaultCLI, self).run()

        if self.options.vault_password_file:
            # read vault_pass from a file
            self.vault_pass = CLI.read_vault_password_file(
                self.options.vault_password_file)
        else:
            self.vault_pass, _ = self.ask_vault_passwords(
                ask_vault_pass=True,
                ask_new_vault_pass=False,
                confirm_new=False)

        if self.options.new_vault_password_file:
            # for rekey only
            self.new_vault_pass = CLI.read_vault_password_file(
                self.options.new_vault_password_file)

        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):

        if len(self.args) > 1:
            raise AnsibleOptionsError(
                "ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0])

    def execute_decrypt(self):

        for f in self.args:
            self.editor.decrypt_file(f)

        self.display.display("Decryption successful", stderr=True)

    def execute_edit(self):
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):

        for f in self.args:
            self.editor.view_file(f)

    def execute_encrypt(self):

        for f in self.args:
            self.editor.encrypt_file(f)

        self.display.display("Encryption successful", stderr=True)

    def execute_rekey(self):
        for f in self.args:
            if not (os.path.isfile(f)):
                raise AnsibleError(f + " does not exist")

        if self.new_vault_pass:
            new_password = self.new_vault_pass
        else:
            __, new_password = self.ask_vault_passwords(
                ask_vault_pass=False,
                ask_new_vault_pass=True,
                confirm_new=True)

        for f in self.args:
            self.editor.rekey_file(f, new_password)

        self.display.display("Rekey successful", stderr=True)
Ejemplo n.º 19
0
class VaultCLI(CLI):
    """ Vault command line class """

    VALID_ACTIONS = ("create", "decrypt", "edit", "encrypt", "rekey", "view")

    def __init__(self, args):

        self.vault_pass = None
        self.new_vault_pass = None
        super(VaultCLI, self).__init__(args)

    def parse(self):

        self.parser = CLI.base_parser(
            vault_opts=True,
            usage = "usage: %%prog [%s] [--help] [options] vaultfile.yml" % "|".join(self.VALID_ACTIONS),
            epilog = "\nSee '%s <command> --help' for more information on a specific command.\n\n" % os.path.basename(sys.argv[0])
        )

        self.set_action()

        # options specific to self.actions
        if self.action == "create":
            self.parser.set_usage("usage: %prog create [options] file_name")
        elif self.action == "decrypt":
            self.parser.set_usage("usage: %prog decrypt [options] file_name")
        elif self.action == "edit":
            self.parser.set_usage("usage: %prog edit [options] file_name")
        elif self.action == "view":
            self.parser.set_usage("usage: %prog view [options] file_name")
        elif self.action == "encrypt":
            self.parser.set_usage("usage: %prog encrypt [options] file_name")
        elif self.action == "rekey":
            self.parser.set_usage("usage: %prog rekey [options] file_name")

        self.options, self.args = self.parser.parse_args(self.args[1:])
        display.verbosity = self.options.verbosity

        can_output = ['encrypt', 'decrypt']

        if self.action not in can_output:
            if self.options.output_file:
                raise AnsibleOptionsError("The --output option can be used only with ansible-vault %s" % '/'.join(can_output))
            if len(self.args) == 0:
                raise AnsibleOptionsError("Vault requires at least one filename as a parameter")
        else:
            # This restriction should remain in place until it's possible to
            # load multiple YAML records from a single file, or it's too easy
            # to create an encrypted file that can't be read back in. But in
            # the meanwhile, "cat a b c|ansible-vault encrypt --output x" is
            # a workaround.
            if self.options.output_file and len(self.args) > 1:
                raise AnsibleOptionsError("At most one input file may be used with the --output option")

    def run(self):

        super(VaultCLI, self).run()
        loader = DataLoader()

        # set default restrictive umask
        old_umask = os.umask(0o077)

        if self.options.vault_password_file:
            # read vault_pass from a file
            self.vault_pass = CLI.read_vault_password_file(self.options.vault_password_file, loader)
        else:
            newpass = False
            rekey = False
            if not self.options.new_vault_password_file:
                newpass = (self.action in ['create', 'rekey', 'encrypt'])
                rekey = (self.action == 'rekey')
            self.vault_pass, self.new_vault_pass = self.ask_vault_passwords(ask_new_vault_pass=newpass, rekey=rekey)

        if self.options.new_vault_password_file:
            # for rekey only
            self.new_vault_pass = CLI.read_vault_password_file(self.options.new_vault_password_file, loader)

        if not self.vault_pass:
            raise AnsibleOptionsError("A password is required to use Ansible's Vault")

        self.editor = VaultEditor(self.vault_pass)

        self.execute()

        # and restore umask
        os.umask(old_umask)

    def execute_encrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading plaintext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.encrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Encryption successful", stderr=True)

    def execute_decrypt(self):

        if len(self.args) == 0 and sys.stdin.isatty():
            display.display("Reading ciphertext input from stdin", stderr=True)

        for f in self.args or ['-']:
            self.editor.decrypt_file(f, output_file=self.options.output_file)

        if sys.stdout.isatty():
            display.display("Decryption successful", stderr=True)

    def execute_create(self):

        if len(self.args) > 1:
            raise AnsibleOptionsError("ansible-vault create can take only one filename argument")

        self.editor.create_file(self.args[0])

    def execute_edit(self):
        for f in self.args:
            self.editor.edit_file(f)

    def execute_view(self):

        for f in self.args:
            # Note: vault should return byte strings because it could encrypt
            # and decrypt binary files.  We are responsible for changing it to
            # unicode here because we are displaying it and therefore can make
            # the decision that the display doesn't have to be precisely what
            # the input was (leave that to decrypt instead)
            self.pager(to_unicode(self.editor.plaintext(f)))

    def execute_rekey(self):
        for f in self.args:
            if not (os.path.isfile(f)):
                raise AnsibleError(f + " does not exist")

        for f in self.args:
            self.editor.rekey_file(f, self.new_vault_pass)

        display.display("Rekey successful", stderr=True)