Generate plugin index dynamically

https://fedorahosted.org/freeipa/ticket/3235

install/wsgi/plugins.py

@@ -0,0 +1,54 @@
+# Authors: Petr Vobornik <pvoborni@redhat.com>
+#
+# Copyright (C) 2013  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, either version 3 of the License, or
+# (at your option) any later version.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+#
+
+"""
+Plugin index generation script
+"""
+
+import os
+from ipapython.ipa_log_manager import root_logger
+
+PLUGINS_DIR = "/usr/share/ipa/ui/js/plugins"
+
+def get_plugin_index():
+
+    if not os.path.isdir(PLUGINS_DIR):
+        raise Exception("Supplied plugin directory path is not a directory")
+
+    dirs = os.listdir(PLUGINS_DIR)
+    index = 'define([],function(){return['
+    index += ','.join("'"+x+"'" for x in dirs)
+    index += '];});'
+    return index
+
+def get_failed():
+    return 'define([],function(){return[];});/*error occured: serving default */'
+
+def application(environ, start_response):
+    try:
+        index = get_plugin_index()
+        status = '200 OK'
+    except Exception, e:
+        root_logger.error('plugin index generation failed: %s' % e)
+        status = '200 OK'
+        index = get_failed()
+    headers = [('Content-type', 'application/javascript'),
+               ('Content-Length', str(len(index)))]
+    start_response(status, headers)
+    return [index]