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Add URL parameter to enable notification of IP changes

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This commit is contained in:
Thomas Oettli
2026-01-23 00:51:30 +01:00
parent 9f75e5e66b
commit 5744408c92
6 changed files with 36 additions and 13 deletions
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32
src/ddns_service/server.py
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@@ -317,7 +317,8 @@ class DDNSRequestHandler(BaseHTTPRequestHandler):
now = utc_now()
changed = False
ipv4_changed = False
ipv6_changed = False
if ipv4:
hostname.last_ipv4_update = now
if ipv4 != hostname.last_ipv4:
@@ -330,7 +331,7 @@ class DDNSRequestHandler(BaseHTTPRequestHandler):
hostname.dns_ttl
)
hostname.last_ipv4 = ipv4
changed = True
ipv4_changed = True
except Exception as e:
hostname.save()
logging.error(
@@ -351,7 +352,7 @@ class DDNSRequestHandler(BaseHTTPRequestHandler):
hostname.dns_ttl
)
hostname.last_ipv6 = ipv6
changed = True
ipv6_changed = True
except Exception as e:
hostname.save()
logging.error(
@@ -364,15 +365,15 @@ class DDNSRequestHandler(BaseHTTPRequestHandler):
hostname.save()
changed_addrs = ""
if ipv4:
changed_addrs += f"ipv4={ipv4}"
if ipv6:
if ipv4_changed:
changed_addrs += f" ipv4={ipv4}"
if ipv6_changed:
changed_addrs += f" ipv6={ipv6}"
if not changed:
if not ipv4_changed and not ipv6_changed:
logging.info(
f"No change: client={client_ip} hostname={hostname.hostname} "
f"zone={hostname.zone} {changed_addrs}"
f"zone={hostname.zone}{changed_addrs}"
)
return (
200, "nochg",
@@ -381,8 +382,21 @@ class DDNSRequestHandler(BaseHTTPRequestHandler):
logging.info(
f"Updated: client={client_ip} hostname={hostname.hostname} "
f"zone={hostname.zone} {changed_addrs}"
f"zone={hostname.zone}{changed_addrs}"
)
notify_change = extract_param(params, endpoint["params"]["notify_change"])
if notify_change and notify_change.lower() not in ["0", "no", "off"]:
try:
self.app.email_service.send_change_notification(
hostname.user.email,
hostname,
ipv4_changed,
ipv6_changed
)
except Exception as e:
logging.error(f"Sending change notification error: {e}")
return (
200, "good",
{"ipv4": hostname.last_ipv4, "ipv6": hostname.last_ipv6}