From: Pavel Zuna <pzuna@redhat.com>

Date: Tue, 10 Aug 2010 16:41:28 -0400
Subject: [PATCH 2/6] Add a new INTERNAL plugin that exports plugin meta-data into JSON.

This is required for the webUI, since we're dropping Genshi. *ehm* :)

You can't use this command on the CLI. It takes one optional argument:
the name of an IPA object. If not specified, meta-data for all objects
are returned.

ipalib/plugins/internal.py

@@ -0,0 +1,65 @@
+# Authors:
+#   Pavel Zuna <pzuna@redhat.com>
+#
+# Copyright (c) 2010  Red Hat
+# See file 'copying' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the gnu general public license as
+# published by the free software foundation; version 2 only
+#
+# This program is distributed in the hope that it will be useful,
+# but without any warranty; without even the implied warranty of
+# merchantability or fitness for a particular purpose.  See the
+# gnu general public license for more details.
+#
+# You should have received a copy of the gnu general public license
+# along with this program; if not, write to the Free Software
+# Foundation, inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+"""
+Plugins not accessible directly through the CLI, commands used internally
+"""
+
+import json
+
+from ipalib import api, errors
+from ipalib import Command
+from ipalib import Str
+from ipalib.output import Output
+from ipalib.text import _
+from ipalib.util import json_serialize
+
+class json_metadata(Command):
+    """
+    Export plugin meta-data for the webUI.
+    """
+    INTERNAL = True
+
+    takes_args = (
+        Str('objname?',
+            doc=_('Name of object to export'),
+        ),
+    )
+
+    has_output = (
+        Output('result', dict, doc=_('Dict of JSON encoded IPA Objects')),
+    )
+
+    def execute(self, objname):
+        if objname and objname in self.api.Object:
+            return dict(
+                result=dict(
+                    ((objname, json_serialize(self.api.Object[objname])), )
+                )
+            )
+        return dict(
+            result=dict(
+                (o.name, json_serialize(o)) for o in self.api.Object()
+            )
+        )
+
+    def output_for_cli(self, textui, result, *args, **options):
+        print json.dumps(result, default=json_serialize)
+
+api.register(json_metadata)
+