Python CSC Electronic Office
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import glob
import os
import re
import shutil
import subprocess
from typing import List, Dict, Tuple
import jinja2
from zope import component
from zope.interface import implementer
from ceo_common.logger_factory import logger_factory
from ceo_common.interfaces import IVHostManager, IConfig
PROXY_PASS_IP_RE = re.compile(r'^\s+proxy_pass\s+http://(?P<ip_address>[\d.]+);$')
VHOST_FILENAME_RE = re.compile(r'^(?P<username>[0-9a-z-]+)_(?P<domain>[0-9a-z.-]+)$')
logger = logger_factory(__name__)
class VHostManager:
def __init__(self):
cfg = component.getUtility(IConfig)
self.vhost_dir = cfg.get('cloud vhosts_vhost_dir')
self.ssl_dir = cfg.get('cloud vhosts_ssl_dir')
if not os.path.exists(self.vhost_dir):
if not os.path.exists(self.ssl_dir):
self.default_ssl_cert = cfg.get('cloud vhosts_default_ssl_cert')
self.default_ssl_key = cfg.get('cloud vhosts_default_ssl_key')
self.acme_challenge_dir = cfg.get('cloud vhosts_acme_challenge_dir')
self.acme_dir = '/root/'
self.acme_sh = os.path.join(self.acme_dir, '')
self.jinja_env = jinja2.Environment(
def _vhost_filename(username: str, domain: str) -> str:
"""Generate a filename for the vhost record"""
# sanity check...
assert '..' not in domain and '/' not in domain
return username + '_' + domain
def _vhost_filepath(self, username: str, domain: str) -> str:
"""Generate an absolute path for the vhost record"""
return os.path.join(self.vhost_dir, self._vhost_filename(username, domain))
def _vhost_files(self, username: str) -> List[str]:
"""Return a list of all vhost files for this user."""
return glob.glob(os.path.join(self.vhost_dir, username + '_*'))
def _run(self, args: List[str]):, check=True)
def _reload_web_server(self):
logger.debug('Reloading NGINX')
self._run(['systemctl', 'reload', 'nginx'])
def _get_cert_and_key_path(self, domain: str) -> Tuple[str, str]:
cert_path = f'{self.ssl_dir}/{domain}.chain'
key_path = f'{self.ssl_dir}/{domain}.key'
return cert_path, key_path
def _acquire_new_cert(self, domain: str, cert_path: str, key_path: str):'issuing new certificate for {domain}')
self.acme_sh, '--issue', '-d', domain,
'-w', self.acme_challenge_dir,
])'installing new certificate for {domain}')
self.acme_sh, '--install-cert', '-d', domain,
'--key-file', key_path,
'--fullchain-file', cert_path,
'--reloadcmd', 'systemctl reload nginx',
def _delete_cert(self, domain: str, cert_path: str, key_path: str):'removing certificate for {domain}')
self._run([self.acme_sh, '--remove', '-d', domain])
if os.path.exists(os.path.join(self.acme_dir, domain)):
shutil.rmtree(os.path.join(self.acme_dir, domain))
def create_vhost(self, username: str, domain: str, ip_address: str):
cert_path, key_path = self._get_cert_and_key_path(domain)
if not (os.path.exists(cert_path) and os.path.exists(key_path)):
self._acquire_new_cert(domain, cert_path, key_path)
template = self.jinja_env.get_template('nginx_cloud_vhost_config.j2')
body = template.render(
username=username, domain=domain, ip_address=ip_address,
ssl_cert_path=cert_path, ssl_key_path=key_path)
filepath = self._vhost_filepath(username, domain)'Writing a new vhost ({domain} -> {ip_address}) to {filepath}')
with open(filepath, 'w') as fo:
def delete_vhost(self, username: str, domain: str):
cert_path, key_path = self._get_cert_and_key_path(domain)
if os.path.exists(cert_path) and os.path.exists(key_path):
self._delete_cert(domain, cert_path, key_path)
filepath = self._vhost_filepath(username, domain)'Deleting {filepath}')
def get_num_vhosts(self, username: str) -> int:
return len(self._vhost_files(username))
def get_vhosts(self, username: str) -> List[Dict]:
vhosts = []
for filepath in self._vhost_files(username):
filename = os.path.basename(filepath)
match = VHOST_FILENAME_RE.match(filename)
assert match is not None, f"'{filename}' does not match expected pattern"
domain ='domain')
ip_address = None
for line in open(filepath):
match = PROXY_PASS_IP_RE.match(line)
if match is None:
ip_address ='ip_address')
assert ip_address is not None, f"Could not find IP address in {filename}"
vhosts.append({'domain': domain, 'ip_address': ip_address})
return vhosts
def delete_all_vhosts_for_user(self, username: str):
filepaths = self._vhost_files(username)
if not filepaths:
for filepath in filepaths:'Deleting {filepath}')