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acme_v2.py
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#coding: utf-8
#-------------------------------------------------------------------
# 宝塔Linux面板
#-------------------------------------------------------------------
# Copyright (c) 2015-2099 宝塔软件(http://bt.cn) All rights reserved.
#-------------------------------------------------------------------
# Author: 黄文良 <[email protected]>
#-------------------------------------------------------------------
#-------------------------------------------------------------------
# ACME v2客户端
#-------------------------------------------------------------------
import os
import time
import copy
import json
import base64
import hashlib
import logging
import binascii
import platform
import sys
import requests
import OpenSSL
import cryptography
os.chdir('/www/server/panel')
sys.path.append('class/')
import public
class acme_v2:
_url = None
_apis = None
debug = True
def __init__(
self,
domain_name = "www.bt.cn",
dns_class = None,
domain_alt_names=None,
contact_email=None,
account_key=None,
certificate_key=None,
bits=2048,
digest="sha256",
ACME_REQUEST_TIMEOUT=7,
ACME_AUTH_STATUS_WAIT_PERIOD=8,
ACME_AUTH_STATUS_MAX_CHECKS=3
):
if self.debug:
self._url = 'https://acme-staging-v02.api.letsencrypt.org/directory'
else:
self._url = 'https://acme-v02.api.letsencrypt.org/directory'
self.domain_name = domain_name
self.dns_class = dns_class
if not domain_alt_names:
domain_alt_names = []
self.domain_alt_names = domain_alt_names
self.domain_alt_names = list(set(self.domain_alt_names))
self.contact_email = contact_email
self.bits = bits
self.digest = digest
self.ACME_REQUEST_TIMEOUT = ACME_REQUEST_TIMEOUT
self.ACME_AUTH_STATUS_WAIT_PERIOD = ACME_AUTH_STATUS_WAIT_PERIOD
self.ACME_AUTH_STATUS_MAX_CHECKS = ACME_AUTH_STATUS_MAX_CHECKS
self.ACME_DIRECTORY_URL = self._url
self.all_domain_names = copy.copy(self.domain_alt_names)
self.all_domain_names.insert(0, self.domain_name)
self.domain_alt_names = list(set(self.domain_alt_names))
self.User_Agent = self.get_user_agent()
acme_endpoints = self.get_apis()
self.ACME_GET_NONCE_URL = acme_endpoints["newNonce"]
self.ACME_TOS_URL = acme_endpoints["meta"]["termsOfService"]
self.ACME_CAA_ID = acme_endpoints["meta"]["caaIdentities"]
self.ACME_KEY_CHANGE_URL = acme_endpoints["keyChange"]
self.ACME_NEW_ACCOUNT_URL = acme_endpoints["newAccount"]
self.ACME_NEW_ORDER_URL = acme_endpoints["newOrder"]
self.ACME_REVOKE_CERT_URL = acme_endpoints["revokeCert"]
self.kid = None
self.certificate_key = certificate_key or self.create_certificate_key()
self.csr = self.create_csr()
if not account_key:
self.account_key = self.create_account_key()
self.PRIOR_REGISTERED = False
else:
self.account_key = account_key
self.PRIOR_REGISTERED = True
#获取API接口清单
def get_apis(self):
if self._apis: return self._apis
result = json.loads(self._http_get(self._url).read())
if result:
self._apis = result
return self._apis
return False
#创建CSR
def create_csr(self):
X509Req = OpenSSL.crypto.X509Req()
X509Req.get_subject().CN = self.domain_name
if self.domain_alt_names:
SAN = "DNS:{0}, ".format(self.domain_name).encode("utf8") + ", ".join(
"DNS:" + i for i in self.domain_alt_names
).encode("utf8")
else:
SAN = "DNS:{0}".format(self.domain_name).encode("utf8")
X509Req.add_extensions(
[
OpenSSL.crypto.X509Extension(
"subjectAltName".encode("utf8"), critical=False, value=SAN
)
]
)
pk = OpenSSL.crypto.load_privatekey(
OpenSSL.crypto.FILETYPE_PEM, self.certificate_key.encode()
)
X509Req.set_pubkey(pk)
X509Req.set_version(2)
X509Req.sign(pk, self.digest)
return OpenSSL.crypto.dump_certificate_request(OpenSSL.crypto.FILETYPE_ASN1, X509Req)
def get_user_agent(self):
return "BT-Panel/7.0"
def create_certificate_key(self):
return self.create_key().decode()
def create_account_key(self):
return self.create_key().decode()
#创建Key
def create_key(self, key_type=OpenSSL.crypto.TYPE_RSA):
key = OpenSSL.crypto.PKey()
key.generate_key(key_type, self.bits)
private_key = OpenSSL.crypto.dump_privatekey(OpenSSL.crypto.FILETYPE_PEM, key)
return private_key
#注册帐户
def register(self):
if self.PRIOR_REGISTERED:
payload = {"onlyReturnExisting": True}
elif self.contact_email:
payload = {
"termsOfServiceAgreed": True,
"contact": ["mailto:{0}".format(self.contact_email)],
}
else:
payload = {"termsOfServiceAgreed": True}
url = self.ACME_NEW_ACCOUNT_URL
print(url)
acme_register_response = self.make_signed_acme_request(url=url, payload=payload)
print(acme_register_response)
if acme_register_response.code not in [201, 200, 409]:
raise ValueError(
"Error while registering: status_code={status_code} response={response}".format(
status_code=acme_register_response.status_code,
response=self.log_response(acme_register_response),
)
)
kid = acme_register_response.info().getheaders("Location")
setattr(self, "kid", kid)
print(acme_register_response.read())
print(acme_register_response.info().headers)
return acme_register_response
def log_response(self,response):
try:
tmp = response.read()
log_body = json.loads(tmp)
except ValueError:
log_body = tmp[:30]
return log_body
def make_signed_acme_request(self, url, payload):
headers = {"User-Agent": self.User_Agent}
payload = self.stringfy_items(payload)
if payload in ["GET_Z_CHALLENGE", "DOWNLOAD_Z_CERTIFICATE"]:
response = self._http_get(url, headers)
else:
payload64 = self.calculate_safe_base64(json.dumps(payload))
protected = self.get_acme_header(url)
protected64 = self.calculate_safe_base64(json.dumps(protected))
signature = self.sign_message(message="{0}.{1}".format(protected64, payload64))
signature64 = self.calculate_safe_base64(signature) # str
data = {"protected": protected64, "payload": payload64, "signature": signature64}
headers.update({"Content-Type": "application/jose+json"})
response = self._http_post(url, data, headers)
return response
def sign_message(self, message):
pk = OpenSSL.crypto.load_privatekey(OpenSSL.crypto.FILETYPE_PEM, self.account_key.encode())
return OpenSSL.crypto.sign(pk, message.encode("utf8"), self.digest)
#构造请求头
def get_acme_header(self,url):
header = {"alg": "RS256", "nonce": self.get_nonce(), "url": url}
if url in [self.ACME_NEW_ACCOUNT_URL, self.ACME_REVOKE_CERT_URL, "GET_THUMBPRINT"]:
private_key = cryptography.hazmat.primitives.serialization.load_pem_private_key(
self.account_key.encode(),
password=None,
backend=cryptography.hazmat.backends.default_backend(),
)
public_key_public_numbers = private_key.public_key().public_numbers()
# private key public exponent in hex format
exponent = "{0:x}".format(public_key_public_numbers.e)
exponent = "0{0}".format(exponent) if len(exponent) % 2 else exponent
# private key modulus in hex format
modulus = "{0:x}".format(public_key_public_numbers.n)
jwk = {
"kty": "RSA",
"e": self.calculate_safe_base64(binascii.unhexlify(exponent)),
"n": self.calculate_safe_base64(binascii.unhexlify(modulus)),
}
header["jwk"] = jwk
else:
header["kid"] = self.kid
return header
def get_nonce(self):
headers = {"User-Agent": self.User_Agent}
response = self._http_get(self.ACME_GET_NONCE_URL, headers=headers)
tmp = response.info().getheaders("Replay-Nonce")
if not tmp: return ''
return tmp[0]
#将参数转换为Base64
def calculate_safe_base64(self,un_encoded_data):
if sys.version_info[0] == 3:
if isinstance(un_encoded_data, str):
un_encoded_data = un_encoded_data.encode("utf8")
r = base64.urlsafe_b64encode(un_encoded_data).rstrip(b"=")
return r.decode("utf8")
#参数转换
def stringfy_items(self,payload):
if isinstance(payload, str):
return payload
for k, v in payload.items():
if isinstance(k, bytes):
k = k.decode("utf-8")
if isinstance(v, bytes):
v = v.decode("utf-8")
payload[k] = v
return payload
#GET请求
def _http_get(self,url,headers = {},timeout = 30):
if sys.version_info[0] == 2:
try:
import urllib2,ssl
if sys.version_info[0] == 2:
reload(urllib2)
reload(ssl)
try:
ssl._create_default_https_context = ssl._create_unverified_context
except:pass;
req = urllib2.Request(url, headers = headers)
response = urllib2.urlopen(req,timeout = timeout,)
return response
except Exception as ex:
print(public.get_error_info())
return str(ex);
else:
try:
import urllib.request,ssl
try:
ssl._create_default_https_context = ssl._create_unverified_context
except:pass;
req = urllib.request.Request(url,headers = headers)
response = urllib.request.urlopen(req,timeout = timeout)
return response
except Exception as ex:
print(public.get_error_info())
return str(ex)
#POST请求
def _http_post(self,url,data,headers = {},timeout = 30):
data = json.dumps(data).encode('utf8')
if sys.version_info[0] == 2:
try:
import urllib,urllib2,ssl
try:
ssl._create_default_https_context = ssl._create_unverified_context
except:pass
req = urllib2.Request(url, data,headers = headers)
response = urllib2.urlopen(req,timeout=timeout)
return response
except Exception as ex:
print(public.get_error_info())
return str(ex);
else:
try:
import urllib.request,ssl
try:
ssl._create_default_https_context = ssl._create_unverified_context
except:pass;
req = urllib.request.Request(url, data,headers = headers)
response = urllib.request.urlopen(req,timeout = timeout)
return response
except Exception as ex:
print(public.get_error_info())
return str(ex);
if __name__ == "__main__":
p = acme_v2()
p.register()