def __init__(self, stream_xrefs=True, init_page_tree=True):
# root object
root = generic.DictionaryObject({
pdf_name("/Type"): pdf_name("/Catalog"),
})
id1 = generic.ByteStringObject(os.urandom(16))
id2 = generic.ByteStringObject(os.urandom(16))
id_obj = generic.ArrayObject([id1, id2])
# info object
info = generic.DictionaryObject({
pdf_name('/Producer'): pdf_string(VENDOR)
})
super().__init__(root, info, id_obj, stream_xrefs=stream_xrefs)
if init_page_tree:
pages = generic.DictionaryObject({
pdf_name("/Type"): pdf_name("/Pages"),
pdf_name("/Count"): generic.NumberObject(0),
pdf_name("/Kids"): generic.ArrayObject(),
})
root[pdf_name('/Pages')] = self.add_object(pages)
def as_pdf_object(self):
"""
Render this :class:`.SigCertConstraints` object to a PDF dictionary.
:return:
A :class:`~.generic.DictionaryObject`.
"""
result = generic.DictionaryObject({
pdf_name('/Type'): pdf_name('/SVCert'),
pdf_name('/Ff'): generic.NumberObject(self.flags.value),
})
if self.subjects is not None:
result[pdf_name('/Subject')] = generic.ArrayObject(
generic.ByteStringObject(cert.dump())
for cert in self.subjects
)
if self.subject_dn:
# FIXME Adobe Reader seems to ignore this for some reason.
# Should try to figure out what I'm doing wrong
result[pdf_name('/SubjectDN')] = generic.ArrayObject([
generic.DictionaryObject({
pdf_name('/' + key): pdf_string(value)
for key, value in x509_name_keyval_pairs(
self.subject_dn, abbreviate_oids=True
)
})
])
if self.issuers is not None:
result[pdf_name('/Issuer')] = generic.ArrayObject(
generic.ByteStringObject(cert.dump())
for cert in self.issuers
)
if self.info_url is not None:
result[pdf_name('/URL')] = pdf_string(self.info_url)
result[pdf_name('/URLType')] = self.url_type
if self.key_usage is not None:
result[pdf_name('/KeyUsage')] = generic.ArrayObject(
pdf_string(ku.encode_to_sv_string()) for ku in self.key_usage
)
return result
