Add configuration show command

Create a `configuration show` command that displays the current
configuration of the CLI.  Different configurations can be
displayed using options such as --os-cloud.  Passwords and
tokens are redacted by default unless the --unmask
option is specified.

Closes-Bug: #1476729

Change-Id: I0792365d0c5fa526cd09c0ed88c6bb1e2cb813a7

1 files changed, 58 insertions, 0 deletions

diff --git a/openstackclient/common/configuration.py b/openstackclient/common/configuration.py
new file mode 100644
index 00000000..83df73e2
--- /dev/null
+++ b/openstackclient/common/configuration.py
@@ -0,0 +1,58 @@
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+
+"""Configuration action implementations"""
+
+import logging
+
+from cliff import show
+import six
+
+REDACTED = "<redacted>"
+
+
+class ShowConfiguration(show.ShowOne):
+    """Display configuration details"""
+
+    log = logging.getLogger(__name__ + '.ShowConfiguration')
+
+    def get_parser(self, prog_name):
+        parser = super(ShowConfiguration, self).get_parser(prog_name)
+        mask_group = parser.add_mutually_exclusive_group()
+        mask_group.add_argument(
+            "--mask",
+            dest="mask",
+            action="store_true",
+            default=True,
+            help="Attempt to mask passwords (default)",
+        )
+        mask_group.add_argument(
+            "--unmask",
+            dest="mask",
+            action="store_false",
+            help="Show password in clear text",
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+
+        info = self.app.client_manager.get_configuration()
+        for key, value in six.iteritems(info.pop('auth', {})):
+            if parsed_args.mask:
+                if 'password' in key.lower():
+                    value = REDACTED
+                if 'token' in key.lower():
+                    value = REDACTED
+            info['auth.' + key] = value
+        return zip(*sorted(six.iteritems(info)))