104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
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#!/usr/bin/env python3
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import requests
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import sys
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from configparser import ConfigParser
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CONFIG_FILE = "/etc/dehydrated/hook.ini"
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# contents should look something like this:
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# [powerdns]
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# endpoint = https://dns.example.lol/api/v1/servers/localhost
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# api_key = lololololol
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config = ConfigParser()
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config.read("/etc/dehydrated/hook.ini")
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def deploy_challenge(domain, token_filename, token_value):
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endpoint = config["powerdns"]["endpoint"]
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headers = {"X-Api-Key": config["powerdns"]["api_key"], "Content-Type": "application/json"}
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# list all zones, try to find one that matches
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zones = requests.get(f"{endpoint}/zones", headers=headers).json()
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zone = None
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for z in zones:
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if domain.endswith(z['name'][:-1]):
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zone = z['name']
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break
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if zone is None:
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raise Exception(f"unable to find zone for {domain}")
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records = [{"content": f"\"{token_value}\"", "disabled": False}]
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name = f"_acme-challenge.{domain}."
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existing_zone = requests.get(f"{endpoint}/zones/{zone}", headers=headers).json()
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for rrset in existing_zone['rrsets']:
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if rrset["name"] == name and rrset["type"] == "TXT":
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records += rrset["records"]
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patchdata = {
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"rrsets": [
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{
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"name": name,
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"type": "TXT",
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"ttl": 30,
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"changetype": "REPLACE",
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"records": records
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}
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]
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}
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resp = requests.patch(f"{endpoint}/zones/{zone}", headers=headers, json=patchdata)
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if not resp.ok:
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print(resp.content.decode())
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resp.raise_for_status()
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def clean_challenge(domain, token_filename, token_value):
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endpoint = config["powerdns"]["endpoint"]
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headers = {"X-Api-Key": config["powerdns"]["api_key"], "Content-Type": "application/json"}
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# list all zones, try to find one that matches
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zones = requests.get(f"{endpoint}/zones", headers=headers).json()
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zone = None
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for z in zones:
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if domain.endswith(z['name'][:-1]):
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zone = z['name']
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break
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if zone is None:
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raise Exception(f"unable to find zone for {domain}")
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records = []
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name = f"_acme-challenge.{domain}."
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existing_zone = requests.get(f"{endpoint}/zones/{zone}", headers=headers).json()
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for rrset in existing_zone['rrsets']:
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if rrset["name"] == name and rrset["type"] == "TXT":
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# preserve all records that don't match the one we are supposed to be cleaning
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records += [x for x in rrset["records"] if x["content"] != f"\"{token_value}\""]
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patchdata = {
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"rrsets": [
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{
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"name": name,
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"type": "TXT",
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"ttl": 30,
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"changetype": "REPLACE",
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"records": records
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}
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]
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}
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resp = requests.patch(f"{endpoint}/zones/{zone}", headers=headers, json=patchdata)
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if not resp.ok:
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print(resp.content.decode())
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resp.raise_for_status()
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if __name__ == "__main__":
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if sys.argv[1] == "deploy_challenge":
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deploy_challenge(sys.argv[2], sys.argv[3], sys.argv[4])
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elif sys.argv[1] == "clean_challenge":
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clean_challenge(sys.argv[2], sys.argv[3], sys.argv[4])
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