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This commit is contained in:
Matthew Grotke 2026-05-24 00:08:14 -04:00
parent 7e39b077d1
commit 275ccd0bac
2 changed files with 41 additions and 33 deletions
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10
routlin/ddns.py
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@ -210,11 +210,17 @@ def _get_ip_via_http(spec):
return _extract_ip(r.read().decode().strip())
_SAFE_DIG_RE = re.compile(r'^[a-zA-Z0-9.\-_@+:\s]+$')
def _get_ip_via_dig(spec):
"""Query public IP via dig. spec: {"type": "dig", "command": "<dig args>"}
"""Query public IP via dig. spec: {"type": "dig", "url": "<dig args>"}
Requires the 'dig' utility to be installed.
"""
cmd = ["dig", "+short"] + spec["url"].split()
url = spec["url"]
if not _SAFE_DIG_RE.match(url):
log.warning(f"Skipping dig service with disallowed characters: {url!r}")
return None
cmd = ["dig", "+short"] + url.split()
try:
result = subprocess.run(cmd, capture_output=True, text=True, timeout=10)
if result.returncode != 0: