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"""Make the custom certificate and private key files used by test_ssl
and friends."""
import os
import shutil
import tempfile
from subprocess import *
req_template = """
[req]
distinguished_name = req_distinguished_name
x509_extensions = req_x509_extensions
prompt = no
[req_distinguished_name]
C = XY
L = Castle Anthrax
O = Python Software Foundation
CN = {hostname}
[req_x509_extensions]
subjectAltName = DNS:{hostname}
[ ca ]
default_ca = CA_default
[ CA_default ]
dir = cadir
database = $dir/index.txt
crlnumber = $dir/crl.txt
default_md = sha1
default_days = 3600
default_crl_days = 3600
certificate = pycacert.pem
private_key = pycakey.pem
serial = $dir/serial
RANDFILE = $dir/.rand
policy = policy_match
[ policy_match ]
countryName = match
stateOrProvinceName = optional
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ v3_ca ]
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer
basicConstraints = CA:true
"""
here = os.path.abspath(os.path.dirname(__file__))
def make_cert_key(hostname, sign=False):
print("creating cert for " + hostname)
tempnames = []
for i in range(3):
with tempfile.NamedTemporaryFile(delete=False) as f:
tempnames.append(f.name)
req_file, cert_file, key_file = tempnames
try:
with open(req_file, 'w') as f:
f.write(req_template.format(hostname=hostname))
args = ['req', '-new', '-days', '3650', '-nodes',
'-newkey', 'rsa:1024', '-keyout', key_file,
'-config', req_file]
if sign:
with tempfile.NamedTemporaryFile(delete=False) as f:
tempnames.append(f.name)
reqfile = f.name
args += ['-out', reqfile ]
else:
args += ['-x509', '-out', cert_file ]
check_call(['openssl'] + args)
if sign:
args = ['ca', '-config', req_file, '-out', cert_file, '-outdir', 'cadir',
'-policy', 'policy_anything', '-batch', '-infiles', reqfile ]
check_call(['openssl'] + args)
with open(cert_file, 'r') as f:
cert = f.read()
with open(key_file, 'r') as f:
key = f.read()
return cert, key
finally:
for name in tempnames:
os.remove(name)
TMP_CADIR = 'cadir'
def unmake_ca():
shutil.rmtree(TMP_CADIR)
def make_ca():
os.mkdir(TMP_CADIR)
with open(os.path.join('cadir','index.txt'),'a+') as f:
pass # empty file
with open(os.path.join('cadir','crl.txt'),'a+') as f:
f.write("00")
with open(os.path.join('cadir','index.txt.attr'),'w+') as f:
f.write('unique_subject = no')
with tempfile.NamedTemporaryFile("w") as t:
t.write(req_template.format(hostname='our-ca-server'))
t.flush()
with tempfile.NamedTemporaryFile() as f:
args = ['req', '-new', '-days', '3650', '-extensions', 'v3_ca', '-nodes',
'-newkey', 'rsa:2048', '-keyout', 'pycakey.pem',
'-out', f.name,
'-subj', '/C=XY/L=Castle Anthrax/O=Python Software Foundation CA/CN=our-ca-server']
check_call(['openssl'] + args)
args = ['ca', '-config', t.name, '-create_serial',
'-out', 'pycacert.pem', '-batch', '-outdir', TMP_CADIR,
'-keyfile', 'pycakey.pem', '-days', '3650',
'-selfsign', '-extensions', 'v3_ca', '-infiles', f.name ]
check_call(['openssl'] + args)
args = ['ca', '-config', t.name, '-gencrl', '-out', 'revocation.crl']
check_call(['openssl'] + args)
if __name__ == '__main__':
os.chdir(here)
cert, key = make_cert_key('localhost')
with open('ssl_cert.pem', 'w') as f:
f.write(cert)
with open('ssl_key.pem', 'w') as f:
f.write(key)
print("password protecting ssl_key.pem in ssl_key.passwd.pem")
check_call(['openssl','rsa','-in','ssl_key.pem','-out','ssl_key.passwd.pem','-des3','-passout','pass:somepass'])
check_call(['openssl','rsa','-in','ssl_key.pem','-out','keycert.passwd.pem','-des3','-passout','pass:somepass'])
with open('keycert.pem', 'w') as f:
f.write(key)
f.write(cert)
with open('keycert.passwd.pem', 'a+') as f:
f.write(cert)
# For certificate matching tests
make_ca()
cert, key = make_cert_key('fakehostname')
with open('keycert2.pem', 'w') as f:
f.write(key)
f.write(cert)
cert, key = make_cert_key('localhost', True)
with open('keycert3.pem', 'w') as f:
f.write(key)
f.write(cert)
cert, key = make_cert_key('fakehostname', True)
with open('keycert4.pem', 'w') as f:
f.write(key)
f.write(cert)
unmake_ca()
print("\n\nPlease change the values in test_ssl.py, test_parse_cert function related to notAfter,notBefore and serialNumber")
check_call(['openssl','x509','-in','keycert.pem','-dates','-serial','-noout'])
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