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#!/usr/bin/env python3
import subprocess
import sys
curl = "curl"
challtestsrv = "localhost:8055"
def run(args):
sys.stderr.write(f"run: {' '.join(args)}\n")
p = subprocess.Popen(args, stdin=None, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
output, errput = p.communicate(None)
rv = p.wait()
if rv != 0:
sys.stderr.write(errput.decode())
sys.stdout.write(output.decode())
return rv
def teardown(domain):
rv = run([curl, '-s', '-d', f'{{"host":"_acme-challenge.{domain}"}}',
f'{challtestsrv}/clear-txt'])
if rv == 0:
rv = run([curl, '-s', '-d', f'{{"host":"{domain}"}}',
f'{challtestsrv}/set-txt'])
return rv
def setup(domain, challenge):
teardown(domain)
rv = run([curl, '-s', '-d', f'{{"host":"{domain}", "addresses":["127.0.0.1"]}}',
f'{challtestsrv}/set-txt'])
if rv == 0:
rv = run([curl, '-s', '-d', f'{{"host":"_acme-challenge.{domain}.", "value":"{challenge}"}}',
f'{challtestsrv}/set-txt'])
return rv
def main(argv):
if len(argv) > 1:
if argv[1] == 'setup':
if len(argv) != 4:
sys.stderr.write("wrong number of arguments: dns01.py setup <domain> <challenge>\n")
sys.exit(2)
rv = setup(argv[2], argv[3])
elif argv[1] == 'teardown':
if len(argv) != 4:
sys.stderr.write("wrong number of arguments: dns01.py teardown <domain> <challenge>\n")
sys.exit(1)
rv = teardown(argv[2])
else:
sys.stderr.write(f"unknown option {argv[1]}\n")
rv = 2
else:
sys.stderr.write("dns01.py wrong number of arguments\n")
rv = 2
sys.exit(rv)
if __name__ == "__main__":
main(sys.argv)
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