+
−#!/usr/bin/python2.5
+
−#
+
−# Copyright 2008 the Melange authors.
+
−#
+
−# 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.
+
−
+
−"""Out-of-band responses to render instead of the usual HTTP response.
+
−"""
+
−
+
−__authors__ = [
+
−  '"Todd Larsen" <tlarsen@google.com>',
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−  ]
+
−
+
−
+
−class OutOfBandResponse(Exception):
+
−  """Base exception for out-of-band responses raised by controller logic.
+
−  """
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−
+
−  pass
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−
+
−
+
−class ErrorResponse(OutOfBandResponse):
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−  """Out-of-band response when controller logic needs a special error page.
+
−  """
+
−
+
−  def __init__(self, message, **response_args):
+
−    """Constructor used to set error message and HTTP response arguments.
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−  
+
−    Args:
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−      message: error message to display on the error page
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−      **response_args: keyword arguments that are supplied directly to
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−        django.http.HttpResponse; the most commonly used is 'status' to
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−        set the HTTP status code for the response
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−    """
+
−
+
−    self.message = message
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−    self.response_args = response_args