69 lines
2.4 KiB
Python
69 lines
2.4 KiB
Python
import re
|
|
import subprocess
|
|
import json
|
|
import zipfile
|
|
import tempfile
|
|
import shutil
|
|
import os
|
|
|
|
from . import abstract, parser_factory
|
|
|
|
class LibreOfficeParser(abstract.AbstractParser):
|
|
mimetypes = {
|
|
'application/vnd.oasis.opendocument.text',
|
|
'application/vnd.oasis.opendocument.spreadsheet',
|
|
'application/vnd.oasis.opendocument.presentation',
|
|
'application/vnd.oasis.opendocument.graphics',
|
|
'application/vnd.oasis.opendocument.chart'
|
|
}
|
|
|
|
def get_meta(self):
|
|
"""
|
|
Yes, I know that parsing xml with regexp ain't pretty,
|
|
be my guest and fix it if you want.
|
|
"""
|
|
metadata = {}
|
|
zipin = zipfile.ZipFile(self.filename)
|
|
for item in zipin.namelist():
|
|
if item == 'meta.xml':
|
|
content = zipin.read(item).decode('utf-8')
|
|
for (key, value) in re.findall(r"<((?:meta|dc).+?)>(.+)</\1>", content, re.I):
|
|
metadata[key] = value
|
|
if not metadata: # better safe than sorry
|
|
metadata[item] = 'harmful content'
|
|
zipin.close()
|
|
return metadata
|
|
|
|
def __clean_zipinfo(self, zipinfo:zipfile.ZipInfo) -> zipfile.ZipInfo:
|
|
zipinfo.compress_type = zipfile.ZIP_DEFLATED
|
|
zipinfo.create_system = 3 # Linux
|
|
zipinfo.comment = b''
|
|
zipinfo.date_time = (1980, 1, 1, 0, 0, 0)
|
|
return zipinfo
|
|
|
|
def remove_all(self):
|
|
zin = zipfile.ZipFile(self.filename, 'r')
|
|
zout = zipfile.ZipFile(self.output_filename, 'w')
|
|
temp_folder = tempfile.mkdtemp()
|
|
|
|
for item in zin.infolist():
|
|
if item.filename[-1] == '/':
|
|
continue # `is_dir` is added in Python3.6
|
|
elif item.filename == 'meta.xml':
|
|
continue # don't keep metadata files
|
|
|
|
zin.extract(member=item, path=temp_folder)
|
|
tmp_parser = parser_factory.get_parser(os.path.join(temp_folder, item.filename))
|
|
if tmp_parser is None:
|
|
print("%s isn't supported" % item.filename)
|
|
continue
|
|
tmp_parser.remove_all()
|
|
zinfo = zipfile.ZipInfo(item.filename)
|
|
item = self.__clean_zipinfo(item)
|
|
with open(tmp_parser.output_filename, 'rb') as f:
|
|
zout.writestr(zinfo, f.read())
|
|
shutil.rmtree(temp_folder)
|
|
zout.close()
|
|
zin.close()
|
|
return True
|