How to open .sgn file types from Israeli Courts

open_sgn.py

#!/usr/bin/python
"""
court.gov.il for some reason send out these signed files with the "sgn" file extension.

They're xml files with base64 encoded contents, this is how you can get them out.

    open_sgn.py myfile.sgn
"""

import base64
import xml.etree.ElementTree as ET
import sys

if len(sys.argv) < 2:
    print("Usage: %s file_to_extract.sgn" % __file__)
    exit(1)

fpath = sys.argv[1]
tree = ET.parse(fpath)
root = tree.getroot()

extension = list(root.iter('DocumentExtension'))[0].text
text = list(root.iter('DocumentContent'))[0].text
decoded = base64.decodestring(text)
dst = fpath + '.' + extension
print("Saving results to '%s'" % dst)
open(dst, 'wb').write(decoded)

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