security-and-privacy/mat2
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Improve xlsx support

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This should close #156
This commit is contained in:
jvoisin 2021-07-14 23:34:02 +02:00
parent 8c1107c358
commit 0b094b594b
1 changed files with 4 additions and 0 deletions
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4
libmat2/office.py
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@ -88,6 +88,7 @@ class MSOfficeParser(ZipParser):
r'^\[Content_Types\]\.xml$',
r'^_rels/\.rels$',
r'^xl/sharedStrings\.xml$', # https://docs.microsoft.com/en-us/office/open-xml/working-with-the-shared-string-table
r'^xl/calcChain\.xml$',
r'^(?:word|ppt|xl)/_rels/document\.xml\.rels$',
r'^(?:word|ppt|xl)/_rels/footer[0-9]*\.xml\.rels$',
r'^(?:word|ppt|xl)/_rels/header[0-9]*\.xml\.rels$',
@ -108,6 +109,8 @@ class MSOfficeParser(ZipParser):
r'^ppt/slideMasters/slideMaster[0-9]+\.xml',
r'^ppt/slideMasters/_rels/slideMaster[0-9]+\.xml\.rels',
r'^xl/worksheets/_rels/sheet[0-9]+\.xml\.rels',
r'^xl/drawings/vmlDrawing[0-9]+\.vml',
r'^xl/drawings/drawing[0-9]+\.xml',
}))
self.files_to_omit = set(map(re.compile, { # type: ignore
r'^\[trash\]/',
@ -124,6 +127,7 @@ class MSOfficeParser(ZipParser):
# Additional presentation-wide properties like printing properties,
# presentation show properties etc.
r'^(?:word|ppt|xl)/presProps\.xml$',
r'^(?:word|ppt|xl)/comments[0-9]+\.xml$',
# we have an allowlist in self.files_to_keep,
# so we can trash everything else