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''' |
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This file contains a class for processing comments from XML |
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''' |
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ns = { |
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'oval-definitions': 'http://oval.mitre.org/XMLSchema/oval-definitions-5', |
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} |
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class _XmlParserComments: |
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def __init__(self, oval_definitions): |
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self.oval_definitions = oval_definitions |
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def _create_dict_form_criteria(self, criteria, description=None): |
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comments = dict( |
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operator=self._get_operator(criteria), |
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comment=self._get_comment(criteria, description), |
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node=[], |
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) |
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for criterion in criteria: |
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if criterion.get('operator'): |
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comments['node'].append( |
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self._create_dict_form_criteria(criterion)) |
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else: |
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comments['node'].append(self._get_dict_with_comment(criterion)) |
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return comments |
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def _get_dict_with_comment(self, criterion): |
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out = dict( |
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comment=self._get_comment(criterion), |
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) |
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if criterion.get('definition_ref'): |
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out['extend_definition'] = criterion.get('definition_ref') |
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else: |
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out['value_id'] = criterion.get('test_ref') |
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return out |
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def _get_operator(self, criterion): |
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operator = criterion.get('operator') |
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return 'AND' if operator is None else operator |
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def _get_comment(self, criterion, description=None): |
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comment = criterion.get('comment') |
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return description if comment is None else comment |
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def _prepare_definition_comments(self): |
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definitions = {} |
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for definition in self.oval_definitions: |
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comment_definition = dict(comment=None, node=[]) |
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title = definition.find( |
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'.//oval-definitions:metadata/oval-definitions:title', ns) |
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description = definition.find( |
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'.//oval-definitions:metadata/oval-definitions:description', ns) |
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comment_definition['comment'] = title.text |
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criteria = definition.find('.//oval-definitions:criteria', ns) |
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comment_definition['node'].append( |
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self._create_dict_form_criteria(criteria, description.text)) |
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definitions[definition.get('id')] = comment_definition |
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return definitions |
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def _recursive_help_fill_comments(self, tree_of_comments, tree): |
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for node, node_of_comment in zip(tree, tree_of_comments): |
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node['comment'] = node_of_comment['comment'] |
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if 'operator' in node and node_of_comment.get('node'): |
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self._recursive_help_fill_comments( |
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node_of_comment['node'], node['node']) |
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def _fill_comment(self, comment_definition, tree_definition): |
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tree_of_comments = comment_definition['node'] |
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tree = [tree_definition['node']] |
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tree_definition['comment'] = comment_definition['comment'] |
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self._recursive_help_fill_comments(tree_of_comments, tree) |
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def insert_comments(self, dict_of_definitions): |
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comment_definitions = self._prepare_definition_comments() |
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for id_definition, definition in dict_of_definitions.items(): |
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if id_definition in comment_definitions: |
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self._fill_comment( |
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comment_definitions[id_definition], definition) |
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OpenSCAP /
oval-graph
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If a method does not access any attributes of the class, it could also be implemented as a function or static method. This can help improve readability. For example
could be written as