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import os
import ssl
import subprocess
from unit.applications.proto import ApplicationProto
from unit.option import option
class ApplicationTLS(ApplicationProto):
def __init__(self):
self._default_context = ssl.create_default_context()
self._default_context.check_hostname = False
self._default_context.verify_mode = ssl.CERT_NONE
def certificate(self, name='default', load=True):
self.openssl_conf()
subprocess.check_output(
[
'openssl',
'req',
'-x509',
'-new',
'-subj',
f'/CN={name}/',
'-config',
f'{option.temp_dir}/openssl.conf',
'-out',
f'{option.temp_dir}/{name}.crt',
'-keyout',
f'{option.temp_dir}/{name}.key',
],
stderr=subprocess.STDOUT,
)
if load:
self.certificate_load(name)
def certificate_load(self, crt, key=None):
if key is None:
key = crt
key_path = f'{option.temp_dir}/{key}.key'
crt_path = f'{option.temp_dir}/{crt}.crt'
with open(key_path, 'rb') as k, open(crt_path, 'rb') as c:
return self.conf(k.read() + c.read(), f'/certificates/{crt}')
def get_ssl(self, **kwargs):
context = kwargs.get('context', self._default_context)
return self.get(wrapper=context.wrap_socket, **kwargs)
def post_ssl(self, **kwargs):
context = kwargs.get('context', self._default_context)
return self.post(wrapper=context.wrap_socket, **kwargs)
def openssl_conf(self, rewrite=False, alt_names=None):
alt_names = alt_names or []
conf_path = f'{option.temp_dir}/openssl.conf'
if not rewrite and os.path.exists(conf_path):
return
# Generates alt_names section with dns names
a_names = '[alt_names]\n'
for i, k in enumerate(alt_names, 1):
k = k.split('|')
if k[0] == 'IP':
a_names += f'IP.{i} = {k[1]}\n'
else:
a_names += f'DNS.{i} = {k[0]}\n'
# Generates section for sign request extension
a_sec = f'''req_extensions = myca_req_extensions
[ myca_req_extensions ]
subjectAltName = @alt_names
{a_names}'''
with open(conf_path, 'w', encoding='utf-8') as f:
f.write(
f'''[ req ]
default_bits = 2048
encrypt_key = no
distinguished_name = req_distinguished_name
x509_extensions = myca_extensions
{a_sec if alt_names else ""}
[ req_distinguished_name ]
[ myca_extensions ]
basicConstraints = critical,CA:TRUE'''
)
def load(self, script, name=None):
if name is None:
name = script
script_path = f'{option.test_dir}/python/{script}'
self._load_conf(
{
"listeners": {"*:8080": {"pass": f"applications/{name}"}},
"applications": {
name: {
"type": "python",
"processes": {"spare": 0},
"path": script_path,
"working_directory": script_path,
"module": "wsgi",
}
},
}
)
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