41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Copyright 2013 The Plaso Project Authors.
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# Please see the AUTHORS file for details on individual authors.
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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 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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"""This file contains definition for a simple filter."""
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from plaso.lib import errors
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from plaso.lib import filter_interface
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from plaso.lib import pfilter
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class EventObjectFilter(filter_interface.FilterObject):
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"""A simple filter using the objectfilter library."""
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def CompileFilter(self, filter_string):
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"""Compile the filter string into a filter matcher."""
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self.matcher = pfilter.GetMatcher(filter_string, True)
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if not self.matcher:
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raise errors.WrongPlugin('Malformed filter string.')
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def Match(self, event_object):
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"""Evaluate an EventObject against a filter."""
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if not self.matcher:
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return True
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self._decision = self.matcher.Matches(event_object)
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return self._decision
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