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#
# Copyright (C) 2019 IPA Project Contributors, see COPYING for license
#
"""Export / import PEM cert and key file as PKCS#12 data
"""
import base64
import json
import os
from ipaplatform.paths import paths
from ipapython import ipautil
from . import common
def export_key(args, tmpdir):
"""Export cert and private from PEM files as PKCS#12 file.
The PKCS#12 file is encrypted with a password.
"""
pk12file = os.path.join(tmpdir, 'export.p12')
password = ipautil.ipa_generate_password()
pk12pwfile = os.path.join(tmpdir, 'passwd')
with open(pk12pwfile, 'w') as f:
f.write(password)
# OpenSSL does not support pkcs12 export of a cert without key
ipautil.run([
paths.OPENSSL, 'pkcs12', '-export',
'-in', args.certfile,
'-out', pk12file,
'-inkey', args.keyfile,
'-password', 'file:{pk12pwfile}'.format(pk12pwfile=pk12pwfile),
])
with open(pk12file, 'rb') as f:
p12data = f.read()
data = {
'export password': password,
'pkcs12 data': p12data,
}
common.json_dump(data, args.exportfile)
def import_key(args, tmpdir):
"""Export key and certificate from a PKCS#12 file to key and cert files.
"""
data = json.load(args.importfile)
password = data['export password']
p12data = base64.b64decode(data['pkcs12 data'])
pk12pwfile = os.path.join(tmpdir, 'passwd')
with open(pk12pwfile, 'w') as f:
f.write(password)
pk12file = os.path.join(tmpdir, 'import.p12')
with open(pk12file, 'wb') as f:
f.write(p12data)
# get the certificate from the file
cmd = [
paths.OPENSSL, 'pkcs12',
'-in', pk12file,
'-clcerts', '-nokeys',
'-out', args.certfile,
'-password', 'file:{pk12pwfile}'.format(pk12pwfile=pk12pwfile),
]
ipautil.run(cmd, umask=0o027)
# get the private key from the file
cmd = [
paths.OPENSSL, 'pkcs12',
'-in', pk12file,
'-nocerts', '-nodes',
'-out', args.keyfile,
'-password', 'file:{pk12pwfile}'.format(pk12pwfile=pk12pwfile),
]
ipautil.run(cmd, umask=0o027)
def default_parser():
parser = common.mkparser(
description='ipa-custodia PEM file handler'
)
parser.add_argument(
'--certfile',
help='path to PEM encoded cert file',
required=True
)
parser.add_argument(
'keyfile',
help='path to PEM encoded key file',
required=True
)
return parser
def ra_agent_parser():
parser = common.mkparser(
description='ipa-custodia RA agent cert handler'
)
parser.set_defaults(
certfile=paths.RA_AGENT_PEM,
keyfile=paths.RA_AGENT_KEY
)
return parser
def main(parser=None):
if parser is None:
parser = default_parser()
common.main(parser, export_key, import_key)
if __name__ == '__main__':
main()
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