Use cherrypy handlers to render error pages

Replaces custom code to render 401 Unauthorized page as well as
adds 400 and 500 handlers

Signed-off-by: Simo Sorce <simo@redhat.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/ipsilon/util/errors.py b/ipsilon/util/errors.py
new file mode 100755
index 0000000..16b7c70
--- /dev/null
+++ b/ipsilon/util/errors.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+#
+# Copyright (C) 2014  Simo Sorce <simo@redhat.com>
+#
+# 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/>.
+
+from ipsilon.util.page import Page
+import cherrypy
+
+class Errors(Page):
+
+    def __init__(self, *args, **kwargs):
+        super(Errors, self).__init__(*args, **kwargs)
+
+    def _error_template(self, *args, **kwargs):
+        # pylint: disable=star-args
+        output_page = self._template(*args, **kwargs)
+        # for some reason cherrypy will choke if the output
+        # is a unicode object, so use str() here to please it
+        return str(output_page)
+
+    def handler(self, status, message, traceback, version):
+        self._debug(repr([status, message, traceback, version]))
+        return self._error_template('internalerror.html', title='Internal Error')
+
+    def __call__(self, status, message, traceback, version):
+        return self.handler(status, message, traceback, version)
+
+
+class Error_400(Errors):
+
+    def handler(self, status, message, traceback, version):
+        return self._error_template('badrequest.html',
+                                    title='Bad Request', message=message)
+
+class Error_401(Errors):
+
+    def handler(self, status, message, traceback, version):
+        return self._error_template('unauthorized.html',
+                                    title='Unauthorized', message=message)