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adding documentation and final cleanup

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This commit is contained in:
csine-nflx 2020-03-27 10:18:38 -07:00
parent 0149f8b0d3
commit 0e314d0028
2 changed files with 82 additions and 17 deletions
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97
lemur/plugins/lemur_acme/powerdns.py
View File

@ -1,11 +1,10 @@
import time
import requests
import json
import sys
import time
import lemur.common.utils as utils
import lemur.dns_providers.util as dnsutil
import requests
from flask import current_app
from lemur.extensions import metrics, sentry
@ -17,7 +16,9 @@ REQUIRED_VARIABLES = [
class Zone:
""" This class implements a PowerDNS zone in JSON. """
"""
This class implements a PowerDNS zone in JSON.
"""
def __init__(self, _data):
self._data = _data
@ -39,7 +40,9 @@ class Zone:
class Record:
""" This class implements a PowerDNS record. """
"""
This class implements a PowerDNS record.
"""
def __init__(self, _data):
self._data = _data
@ -66,7 +69,12 @@ class Record:
def get_zones(account_number):
"""Retrieve authoritative zones from the PowerDNS API and return a list"""
"""
Retrieve authoritative zones from the PowerDNS API and return a list
:param account_number:
:raise: Exception
:return: list of Zone Objects
"""
_check_conf()
server_id = current_app.config.get("ACME_POWERDNS_SERVERID", "localhost")
path = f"/api/v1/servers/{server_id}/zones"
@ -94,7 +102,14 @@ def get_zones(account_number):
def create_txt_record(domain, token, account_number):
""" Create a TXT record for the given domain and token and return a change_id tuple """
"""
Create a TXT record for the given domain and token and return a change_id tuple
:param domain: FQDN
:param token: challenge value
:param account_number:
:return: tuple of domain/token
"""
_check_conf()
function = sys._getframe().f_code.co_name
@ -130,8 +145,11 @@ def create_txt_record(domain, token, account_number):
def wait_for_dns_change(change_id, account_number=None):
"""
Checks the authoritative DNS Server to see if changes have propagated to DNS
Retries and waits until successful.
Checks the authoritative DNS Server to see if changes have propagated.
:param change_id: tuple of domain/token
:param account_number:
:return:
"""
_check_conf()
domain, token = change_id
@ -165,7 +183,15 @@ def wait_for_dns_change(change_id, account_number=None):
def delete_txt_record(change_id, account_number, domain, token):
""" Delete the TXT record for the given domain and token """
"""
Delete the TXT record for the given domain and token
:param change_id: tuple of domain/token
:param account_number:
:param domain: FQDN
:param token: challenge to delete
:return:
"""
_check_conf()
function = sys._getframe().f_code.co_name
@ -242,11 +268,20 @@ def delete_txt_record(change_id, account_number, domain, token):
def _check_conf():
"""
Verifies required configuration variables are set
:return:
"""
utils.validate_conf(current_app, REQUIRED_VARIABLES)
def _generate_header():
"""Generate a PowerDNS API header and return it as a dictionary"""
"""
Generate a PowerDNS API header and return it as a dictionary
:return: Dict of header parameters
"""
api_key_name = current_app.config.get("ACME_POWERDNS_APIKEYNAME")
api_key = current_app.config.get("ACME_POWERDNS_APIKEY")
headers = {api_key_name: api_key}
@ -254,7 +289,13 @@ def _generate_header():
def _get_zone_name(domain, account_number):
"""Get most specific matching zone for the given domain and return as a String"""
"""
Get most specific matching zone for the given domain and return as a String
:param domain: FQDN
:param account_number:
:return: FQDN of domain
"""
zones = get_zones(account_number)
zone_name = ""
for z in zones:
@ -273,7 +314,13 @@ def _get_zone_name(domain, account_number):
def _get_txt_records(domain):
"""Retrieve TXT records for a given domain and return list of Record Objects"""
"""
Retrieve TXT records for a given domain and return list of Record Objects
:param domain: FQDN
:raise: Exception
:return: list of Record objects
"""
server_id = current_app.config.get("ACME_POWERDNS_SERVERID", "localhost")
path = f"/api/v1/servers/{server_id}/search-data?q={domain}&max=100&object_type=record"
@ -300,7 +347,13 @@ def _get_txt_records(domain):
def _get(path, params=None):
""" Execute a GET request on the given URL (base_uri + path) and return response as JSON object """
"""
Execute a GET request on the given URL (base_uri + path) and return response as JSON object
:param path: Relative URL path
:param params: additional parameters
:return: json response
"""
base_uri = current_app.config.get("ACME_POWERDNS_DOMAIN")
verify_value = current_app.config.get("ACME_POWERDNS_VERIFY", True)
resp = requests.get(
@ -314,8 +367,14 @@ def _get(path, params=None):
def _patch_txt_records(domain, account_number, records):
"""Send Patch request to PowerDNS Server"""
"""
Send Patch request to PowerDNS Server
:param domain: FQDN
:param account_number:
:param records: List of Record objects
:return:
"""
domain_id = domain + "."
# Create records
@ -348,7 +407,13 @@ def _patch_txt_records(domain, account_number, records):
def _patch(path, payload):
""" Execute a Patch request on the given URL (base_uri + path) with given payload """
"""
Execute a Patch request on the given URL (base_uri + path) with given payload
:param path:
:param payload:
:return:
"""
base_uri = current_app.config.get("ACME_POWERDNS_DOMAIN")
verify_value = current_app.config.get("ACME_POWERDNS_VERIFY", True)
resp = requests.patch(

2
lemur/plugins/lemur_acme/tests/test_powerdns.py
View File

@ -79,7 +79,7 @@ class TestPowerdns(unittest.TestCase):
change_id = (domain, token)
powerdns._check_conf = Mock()
cur_token = "123456"
cur_records = [powerdns.Record({'name': domain, 'content': cur_token, 'disabled': False})]
cur_records = [powerdns.Record({'name': domain, 'content': f"\"{cur_token}\"", 'disabled': False})]
powerdns._get_txt_records = Mock(return_value=cur_records)
powerdns._get_zone_name = Mock(return_value=zone)
mock_current_app.logger.debug = Mock()