49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
# Copyright (c) 2010-2011 OpenStack, LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from webob import Request
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from webob.exc import HTTPServerError
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from swift.common.utils import get_logger
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class CatchErrorMiddleware(object):
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"""
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Middleware that provides high-level error handling.
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"""
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def __init__(self, app, conf):
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self.app = app
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self.logger = get_logger(conf, log_route='catch-errors')
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def __call__(self, env, start_response):
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try:
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return self.app(env, start_response)
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except Exception, err:
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self.logger.exception(_('Error: %s'), err)
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resp = HTTPServerError(request=Request(env),
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body='An error occurred',
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content_type='text/plain')
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return resp(env, start_response)
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def filter_factory(global_conf, **local_conf):
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conf = global_conf.copy()
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conf.update(local_conf)
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def except_filter(app):
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return CatchErrorMiddleware(app, conf)
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return except_filter
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