8afcb50a39
* Fixing the re-issuance process. Ensuring that certificates that are re-issued go through the normal schema validation. * Fixing tests.
237 lines
8.3 KiB
Python
237 lines
8.3 KiB
Python
"""
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.. module: lemur.certificate.cli
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:platform: Unix
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:copyright: (c) 2015 by Netflix Inc., see AUTHORS for more
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:license: Apache, see LICENSE for more details.
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.. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
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"""
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import sys
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from flask import current_app
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from flask_script import Manager
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from lemur import database
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from lemur.extensions import metrics
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from lemur.deployment import service as deployment_service
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from lemur.endpoints import service as endpoint_service
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from lemur.notifications.messaging import send_rotation_notification
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from lemur.certificates.service import reissue_certificate, get_certificate_primitives, get_all_pending_reissue, get_by_name, get_all_certs
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from lemur.certificates.verify import verify_string
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manager = Manager(usage="Handles all certificate related tasks.")
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def print_certificate_details(details):
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"""
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Print the certificate details with formatting.
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:param details:
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:return:
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"""
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print("[+] Re-issuing certificate with the following details: ")
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print(
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"\t[+] Common Name: {common_name}\n"
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"\t[+] Subject Alternate Names: {sans}\n"
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"\t[+] Authority: {authority_name}\n"
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"\t[+] Validity Start: {validity_start}\n"
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"\t[+] Validity End: {validity_end}\n"
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"\t[+] Organization: {organization}\n"
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"\t[+] Organizational Unit: {organizational_unit}\n"
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"\t[+] Country: {country}\n"
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"\t[+] State: {state}\n"
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"\t[+] Location: {location}".format(
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common_name=details['common_name'],
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sans=",".join(x['value'] for x in details['extensions']['sub_alt_names']['names']) or None,
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authority_name=details['authority'].name,
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validity_start=details['validity_start'].isoformat(),
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validity_end=details['validity_end'].isoformat(),
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organization=details['organization'],
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organizational_unit=details['organizational_unit'],
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country=details['country'],
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state=details['state'],
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location=details['location']
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)
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)
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def validate_certificate(certificate_name):
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"""
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Ensuring that the specified certificate exists.
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:param certificate_name:
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:return:
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"""
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if certificate_name:
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cert = get_by_name(certificate_name)
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if not cert:
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print("[-] No certificate found with name: {0}".format(certificate_name))
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sys.exit(1)
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return cert
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def validate_endpoint(endpoint_name):
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"""
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Ensuring that the specified endpoint exists.
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:param endpoint_name:
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:return:
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"""
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if endpoint_name:
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endpoint = endpoint_service.get_by_name(endpoint_name)
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if not endpoint:
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print("[-] No endpoint found with name: {0}".format(endpoint_name))
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sys.exit(1)
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return endpoint
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def request_rotation(endpoint, certificate, message, commit):
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"""
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Rotates a certificate and handles any exceptions during
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execution.
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:param endpoint:
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:param certificate:
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:param message:
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:param commit:
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:return:
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"""
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if commit:
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try:
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deployment_service.rotate_certificate(endpoint, certificate)
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metrics.send('endpoint_rotation_success', 'counter', 1)
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if message:
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send_rotation_notification(certificate)
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except Exception as e:
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metrics.send('endpoint_rotation_failure', 'counter', 1)
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print(
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"[!] Failed to rotate endpoint {0} to certificate {1} reason: {2}".format(
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endpoint.name,
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certificate.name,
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e
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)
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)
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def request_reissue(certificate, commit):
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"""
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Reissuing certificate and handles any exceptions.
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:param certificate:
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:param commit:
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:return:
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"""
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details = get_certificate_primitives(certificate)
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print_certificate_details(details)
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if commit:
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try:
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new_cert = reissue_certificate(certificate, replace=True)
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metrics.send('certificate_reissue_success', 'counter', 1)
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print("[+] New certificate named: {0}".format(new_cert.name))
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except Exception as e:
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metrics.send('certificate_reissue_failure', 'counter', 1)
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print(
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"[!] Failed to reissue certificate {1} reason: {2}".format(
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certificate.name,
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e
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)
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)
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@manager.option('-e', '--endpoint', dest='endpoint_name', help='Name of the endpoint you wish to rotate.')
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@manager.option('-n', '--new-certificate', dest='new_certificate_name', help='Name of the certificate you wish to rotate to.')
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@manager.option('-o', '--old-certificate', dest='old_certificate_name', help='Name of the certificate you wish to rotate.')
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@manager.option('-a', '--notify', dest='message', action='store_true', help='Send a rotation notification to the certificates owner.')
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@manager.option('-c', '--commit', dest='commit', action='store_true', default=False, help='Persist changes.')
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def rotate(endpoint_name, new_certificate_name, old_certificate_name, message, commit):
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"""
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Rotates an endpoint and reissues it if it has not already been replaced. If it has
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been replaced, will use the replacement certificate for the rotation.
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"""
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if commit:
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print("[!] Running in COMMIT mode.")
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print("[+] Starting endpoint rotation.")
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old_cert = validate_certificate(old_certificate_name)
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new_cert = validate_certificate(new_certificate_name)
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endpoint = validate_endpoint(endpoint_name)
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if endpoint and new_cert:
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print("[+] Rotating endpoint: {0} to certificate {1}".format(endpoint.name, new_cert.name))
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request_rotation(endpoint, new_cert, message, commit)
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elif old_cert and new_cert:
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print("[+] Rotating all endpoints from {0} to {1}".format(old_cert.name, new_cert.name))
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for endpoint in old_cert.endpoints:
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print("[+] Rotating {0}".format(endpoint.name))
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request_rotation(endpoint, new_cert, message, commit)
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else:
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print("[+] Rotating all endpoints that have new certificates available")
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for endpoint in endpoint_service.get_all_pending_rotation():
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if len(endpoint.certificate.replaced) == 1:
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print("[+] Rotating {0} to {1}".format(endpoint.name, endpoint.certificate.replaced[0].name))
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request_rotation(endpoint, endpoint.certificate.replaced[0], message, commit)
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else:
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metrics.send('endpoint_rotation_failure', 'counter', 1)
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print("[!] Failed to rotate endpoint {0} reason: Multiple replacement certificates found.".format(
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endpoint.name
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))
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print("[+] Done!")
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@manager.option('-o', '--old-certificate', dest='old_certificate_name', help='Name of the certificate you wish to reissue.')
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@manager.option('-c', '--commit', dest='commit', action='store_true', default=False, help='Persist changes.')
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def reissue(old_certificate_name, commit):
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"""
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Reissues certificate with the same parameters as it was originally issued with.
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If not time period is provided, reissues certificate as valid from today to
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today + length of original.
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"""
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if commit:
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print("[!] Running in COMMIT mode.")
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print("[+] Starting certificate re-issuance.")
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old_cert = validate_certificate(old_certificate_name)
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if not old_cert:
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for certificate in get_all_pending_reissue():
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print("[+] {0} is eligible for re-issuance".format(certificate.name))
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request_reissue(certificate, commit)
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else:
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request_reissue(old_cert, commit)
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print("[+] Done!")
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@manager.command
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def check_revoked():
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"""
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Function attempts to update Lemur's internal cache with revoked
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certificates. This is called periodically by Lemur. It checks both
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CRLs and OCSP to see if a certificate is revoked. If Lemur is unable
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encounters an issue with verification it marks the certificate status
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as `unknown`.
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"""
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for cert in get_all_certs():
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try:
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if cert.chain:
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status = verify_string(cert.body, cert.chain)
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else:
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status = verify_string(cert.body, "")
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cert.status = 'valid' if status else 'invalid'
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except Exception as e:
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current_app.logger.exception(e)
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cert.status = 'unknown'
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database.update(cert)
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