harbor/make/photon/prepare/utils/cert.py

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# Get or generate private key
import os, sys, subprocess, shutil
from pathlib import Path
from subprocess import DEVNULL
from functools import wraps
from .misc import mark_file
from .misc import generate_random_string
SSL_CERT_PATH = os.path.join("/etc/cert", "server.crt")
SSL_CERT_KEY_PATH = os.path.join("/etc/cert", "server.key")
secret_keys_dir = '/secret/keys'
def _get_secret(folder, filename, length=16):
key_file = os.path.join(folder, filename)
if os.path.isfile(key_file):
with open(key_file, 'r') as f:
key = f.read()
print("loaded secret from file: %s" % key_file)
mark_file(key_file)
return key
if not os.path.isdir(folder):
os.makedirs(folder)
key = generate_random_string(length)
with open(key_file, 'w') as f:
f.write(key)
print("Generated and saved secret to file: %s" % key_file)
mark_file(key_file)
return key
def get_secret_key(path):
secret_key = _get_secret(path, "secretkey")
if len(secret_key) != 16:
raise Exception("secret key's length has to be 16 chars, current length: %d" % len(secret_key))
return secret_key
def get_alias(path):
alias = _get_secret(path, "defaultalias", length=8)
return alias
## decorator actions
def stat_decorator(func):
@wraps(func)
def check_wrapper(*args, **kw):
stat = func(*args, **kw)
if stat == 0:
print("Generated certificate, key file: {key_path}, cert file: {cert_path}".format(**kw))
else:
print("Fail to generate key file: {key_path}, cert file: {cert_path}".format(**kw))
sys.exit(1)
return check_wrapper
@stat_decorator
def create_root_cert(subj, key_path="./k.key", cert_path="./cert.crt"):
rc = subprocess.call(["/usr/bin/openssl", "genrsa", "-out", key_path, "4096"], stdout=DEVNULL, stderr=subprocess.STDOUT)
if rc != 0:
return rc
return subprocess.call(["/usr/bin/openssl", "req", "-new", "-x509", "-key", key_path,\
"-out", cert_path, "-days", "3650", "-subj", subj], stdout=DEVNULL, stderr=subprocess.STDOUT)
@stat_decorator
def create_cert(subj, ca_key, ca_cert, key_path="./k.key", cert_path="./cert.crt"):
cert_dir = os.path.dirname(cert_path)
csr_path = os.path.join(cert_dir, "tmp.csr")
rc = subprocess.call(["/usr/bin/openssl", "req", "-newkey", "rsa:4096", "-nodes","-sha256","-keyout", key_path,\
"-out", csr_path, "-subj", subj], stdout=DEVNULL, stderr=subprocess.STDOUT)
if rc != 0:
return rc
return subprocess.call(["/usr/bin/openssl", "x509", "-req", "-days", "3650", "-in", csr_path, "-CA", \
ca_cert, "-CAkey", ca_key, "-CAcreateserial", "-out", cert_path], stdout=DEVNULL, stderr=subprocess.STDOUT)
def openssl_installed():
shell_stat = subprocess.check_call(["/usr/bin/which", "openssl"], stdout=DEVNULL, stderr=subprocess.STDOUT)
if shell_stat != 0:
print("Cannot find openssl installed in this computer\nUse default SSL certificate file")
return False
return True
def prepare_ca(
private_key_pem_path: Path,
root_crt_path: Path,
old_private_key_pem_path: Path,
old_crt_path: Path):
if not ( private_key_pem_path.exists() and root_crt_path.exists() ):
# From version 1.8 the cert storage path is changed
# if old key paris not exist create new ones
# if old key pairs exist in old place copy it to new place
if not (old_crt_path.exists() and old_private_key_pem_path.exists()):
private_key_pem_path.parent.mkdir(parents=True, exist_ok=True)
root_crt_path.parent.mkdir(parents=True, exist_ok=True)
empty_subj = "/"
create_root_cert(empty_subj, key_path=private_key_pem_path, cert_path=root_crt_path)
mark_file(private_key_pem_path)
mark_file(root_crt_path)
else:
shutil.move(old_crt_path, root_crt_path)
shutil.move(old_private_key_pem_path, private_key_pem_path)