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'''
Task Coach - Your friendly task manager
Copyright (C) 2011 Task Coach developers <developers@taskcoach.org>
Task Coach 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.
Task Coach 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 xml.etree import ElementTree as ET
import os
def anonymize(filename):
''' Anonymize the file specified by the filename by reading its contents,
replacing the contents with X's and saving the anonymized contents to
a copy of the file. '''
def anonymize_string(string):
''' Return an anonymized version of the string. '''
return u'X' * len(string)
def anonymize_text(text):
''' Return an anonymized version of the text, keeping the line
breaks. '''
return '\n'.join([anonymize_string(line) for line in text.split('\n')])
def anonymize_node(node):
''' Recursively anonymize the node and all of its child nodes. '''
for child in node:
anonymize_node(child)
if 'subject' in node.attrib:
node.attrib['subject'] = anonymize_string(node.attrib['subject'])
if node.tag in ('description', 'data') and node.text:
node.text = anonymize_text(node.text)
if node.tag == 'data':
node.attrib['extension'] = \
anonymize_string(node.attrib['extension'])
if node.tag == 'property' and 'name' in node.attrib and \
node.attrib['name'] == 'username':
node.text = 'XXX' # pylint: disable=W0511
if node.tag == 'attachment' and 'location' in node.attrib:
node.attrib['location'] = anonymize_string(node.attrib['location'])
tree = ET.parse(file(filename, 'rb'))
anonymize_node(tree.getroot())
name, ext = os.path.splitext(filename)
anonymized_filename = name + '.anonymized' + ext
tree.write(anonymized_filename)
return anonymized_filename
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