253 lines
No EOL
7.3 KiB
Python
253 lines
No EOL
7.3 KiB
Python
import redis
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import os
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import json
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import ldap
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import peewee
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import OpenSSL
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import logging
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from fnmatch import fnmatch
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from data.users import LDAPConnection
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from flask import Flask
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from flask.ext.mail import Mail, Message
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from data.database import validate_database_url, User
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from storage import get_storage_driver
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from app import app, CONFIG_PROVIDER
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from auth.auth_context import get_authenticated_user
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from util.oauth import GoogleOAuthConfig, GithubOAuthConfig
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logger = logging.getLogger(__name__)
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SSL_FILENAMES = ['ssl.cert', 'ssl.key']
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def get_storage_provider(config):
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parameters = config.get('DISTRIBUTED_STORAGE_CONFIG', {}).get('local', ['LocalStorage', {}])
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try:
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return get_storage_driver(parameters)
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except TypeError:
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raise Exception('Missing required storage configuration parameter(s)')
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def validate_service_for_config(service, config):
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""" Attempts to validate the configuration for the given service. """
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if not service in _VALIDATORS:
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return {
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'status': False
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}
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try:
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_VALIDATORS[service](config)
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return {
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'status': True
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}
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except Exception as ex:
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logger.exception('Validation exception')
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return {
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'status': False,
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'reason': str(ex)
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}
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def _validate_database(config):
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""" Validates connecting to the database. """
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try:
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validate_database_url(config['DB_URI'])
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except peewee.OperationalError as ex:
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if ex.args and len(ex.args) > 1:
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raise Exception(ex.args[1])
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else:
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raise ex
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def _validate_redis(config):
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""" Validates connecting to redis. """
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redis_config = config.get('BUILDLOGS_REDIS', {})
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if not 'host' in redis_config:
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raise Exception('Missing redis hostname')
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client = redis.StrictRedis(socket_connect_timeout=5, **redis_config)
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client.ping()
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def _validate_registry_storage(config):
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""" Validates registry storage. """
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driver = get_storage_provider(config)
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# Put and remove a temporary file.
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driver.put_content('_verify', 'testing 123')
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driver.remove('_verify')
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# Run setup on the driver if the read/write succeeded.
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try:
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driver.setup()
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except Exception as ex:
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raise Exception('Could not prepare storage: %s' % str(ex))
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def _validate_mailing(config):
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""" Validates sending email. """
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test_app = Flask("mail-test-app")
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test_app.config.update(config)
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test_app.config.update({
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'MAIL_FAIL_SILENTLY': False,
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'TESTING': False
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})
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test_mail = Mail(test_app)
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test_msg = Message("Test e-mail from %s" % app.config['REGISTRY_TITLE'])
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test_msg.add_recipient(get_authenticated_user().email)
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test_mail.send(test_msg)
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def _validate_github(config_key):
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return lambda config: _validate_github_with_key(config_key, config)
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def _validate_github_with_key(config_key, config):
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""" Validates the OAuth credentials and API endpoint for a Github service. """
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github_config = config.get(config_key)
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if not github_config:
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raise Exception('Missing Github client id and client secret')
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endpoint = github_config.get('GITHUB_ENDPOINT')
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if not endpoint:
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raise Exception('Missing Github Endpoint')
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if endpoint.find('http://') != 0 and endpoint.find('https://') != 0:
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raise Exception('Github Endpoint must start with http:// or https://')
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if not github_config.get('CLIENT_ID'):
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raise Exception('Missing Client ID')
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if not github_config.get('CLIENT_SECRET'):
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raise Exception('Missing Client Secret')
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client = app.config['HTTPCLIENT']
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oauth = GithubOAuthConfig(config, config_key)
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result = oauth.validate_client_id_and_secret(client)
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if not result:
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raise Exception('Invalid client id or client secret')
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def _validate_google_login(config):
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""" Validates the Google Login client ID and secret. """
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google_login_config = config.get('GOOGLE_LOGIN_CONFIG')
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if not google_login_config:
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raise Exception('Missing client ID and client secret')
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if not google_login_config.get('CLIENT_ID'):
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raise Exception('Missing Client ID')
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if not google_login_config.get('CLIENT_SECRET'):
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raise Exception('Missing Client Secret')
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client = app.config['HTTPCLIENT']
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oauth = GoogleOAuthConfig(config, 'GOOGLE_LOGIN_CONFIG')
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result = oauth.validate_client_id_and_secret(client)
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if not result:
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raise Exception('Invalid client id or client secret')
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def _validate_ssl(config):
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""" Validates the SSL configuration (if enabled). """
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if config.get('PREFERRED_URL_SCHEME', 'http') != 'https':
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return
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for filename in SSL_FILENAMES:
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if not CONFIG_PROVIDER.volume_file_exists(filename):
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raise Exception('Missing required SSL file: %s' % filename)
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with CONFIG_PROVIDER.get_volume_file(SSL_FILENAMES[0]) as f:
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cert_contents = f.read()
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# Validate the certificate.
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try:
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cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, cert_contents)
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except:
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raise Exception('Could not parse certificate file. Is it a valid PEM certificate?')
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if cert.has_expired():
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raise Exception('The specified SSL certificate has expired.')
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private_key_path = None
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with CONFIG_PROVIDER.get_volume_file(SSL_FILENAMES[1]) as f:
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private_key_path = f.name
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if not private_key_path:
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# Only in testing.
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return
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# Validate the private key with the certificate.
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context = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_METHOD)
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context.use_certificate(cert)
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try:
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context.use_privatekey_file(private_key_path)
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except:
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raise Exception('Could not parse key file. Is it a valid PEM private key?')
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try:
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context.check_privatekey()
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except OpenSSL.SSL.Error as e:
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raise Exception('SSL key failed to validate: %s' % str(e))
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# Verify the hostname matches the name in the certificate.
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common_name = cert.get_subject().commonName
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if common_name is None:
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raise Exception('Missing CommonName (CN) from SSL certificate')
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# Build the list of allowed host patterns.
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hosts = set([common_name])
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# Find the DNS extension, if any.
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for i in range(0, cert.get_extension_count()):
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ext = cert.get_extension(i)
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if ext.get_short_name() == 'subjectAltName':
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value = str(ext)
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hosts.update([host.strip()[4:] for host in value.split(',')])
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# Check each host.
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for host in hosts:
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if fnmatch(config['SERVER_HOSTNAME'], host):
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return
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raise Exception('Supported names "%s" in SSL cert do not match server hostname "%s"' %
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(', '.join(list(hosts)), config['SERVER_HOSTNAME']))
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def _validate_ldap(config):
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""" Validates the LDAP connection. """
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if config.get('AUTHENTICATION_TYPE', 'Database') != 'LDAP':
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return
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# Note: raises ldap.INVALID_CREDENTIALS on failure
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admin_dn = config.get('LDAP_ADMIN_DN')
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admin_passwd = config.get('LDAP_ADMIN_PASSWD')
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if not admin_dn:
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raise Exception('Missing Admin DN for LDAP configuration')
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if not admin_passwd:
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raise Exception('Missing Admin Password for LDAP configuration')
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ldap_uri = config.get('LDAP_URI', 'ldap://localhost')
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try:
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with LDAPConnection(ldap_uri, admin_dn, admin_passwd):
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pass
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except ldap.LDAPError as ex:
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values = ex.args[0] if ex.args else {}
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raise Exception(values.get('desc', 'Unknown error'))
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_VALIDATORS = {
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'database': _validate_database,
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'redis': _validate_redis,
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'registry-storage': _validate_registry_storage,
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'mail': _validate_mailing,
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'github-login': _validate_github('GITHUB_LOGIN_CONFIG'),
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'github-trigger': _validate_github('GITHUB_TRIGGER_CONFIG'),
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'google-login': _validate_google_login,
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'ssl': _validate_ssl,
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'ldap': _validate_ldap,
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} |