Initial commit: SSL proxy / firewall appliance

Flask WebUI behind nginx reverse proxy with zone-based firewall, DHCP,
WireGuard, and ACME certificate management.
This commit is contained in:
2026-05-07 22:24:24 +00:00
commit e2f56b8cc8
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"""
webui/api/firewall.py - Firewall (firewalld) management API blueprint.
Exposed at /api/firewall/* and delegates all mutations to lib.firewall.
"""
from flask import Blueprint, jsonify, request
from lib.firewall import (
add_forward_port,
add_rich_rule,
create_zone,
delete_zone,
get_active_zones,
get_available_zones,
get_interfaces,
get_rich_rules,
get_services,
get_zone_info,
remove_forward_port,
remove_rich_rule,
set_masquerade,
set_zone_interfaces,
set_zone_services,
)
bp = Blueprint("firewall", __name__)
# ---------------------------------------------------------------------------
# Error helpers
# ---------------------------------------------------------------------------
def _error(msg, code=400):
return jsonify({"ok": False, "error": msg}), code
def _ok(data=None):
body = {"ok": True}
if data is not None:
body["data"] = data
return jsonify(body)
# ---------------------------------------------------------------------------
# Zones
# ---------------------------------------------------------------------------
@bp.route("/zones", methods=["GET"])
def list_zones():
try:
active = get_active_zones()
available = get_available_zones()
return jsonify(
{
"ok": True,
"data": {
"active": active,
"available": available,
},
}
)
except RuntimeError as exc:
return _error(str(exc), 500)
@bp.route("/zones/<name>", methods=["GET"])
def zone_details(name):
try:
info = get_zone_info(name)
return jsonify({"ok": True, "data": info})
except RuntimeError as exc:
return _error(str(exc), 500)
@bp.route("/zones", methods=["POST"])
def create_zone_bp():
body = request.get_json(silent=True) or {}
zone_name = body.get("name", "").strip()
target = body.get("target", "default").strip() or "default"
if not zone_name:
return _error("Zone name is required", 400)
try:
if zone_name in get_available_zones():
return _error(f"Zone '{zone_name}' already exists", 400)
create_zone(zone_name, target)
return _ok({"name": zone_name, "target": target})
except RuntimeError as exc:
return _error(str(exc), 500)
@bp.route("/zones/<name>", methods=["DELETE"])
def delete_zone_bp(name):
try:
available = get_available_zones()
if name not in available:
return _error(f"Zone '{name}' does not exist", 404)
delete_zone(name)
return _ok({"name": name})
except RuntimeError as exc:
return _error(str(exc), 500)
# ---------------------------------------------------------------------------
# Zone interfaces
# ---------------------------------------------------------------------------
@bp.route("/zones/<name>/interfaces", methods=["POST"])
def set_zone_interfaces_bp(name):
body = request.get_json(silent=True) or {}
interfaces = body.get("interfaces", [])
if not isinstance(interfaces, list):
return _error("'interfaces' must be a list", 400)
try:
set_zone_interfaces(name, interfaces)
return _ok({"zone": name, "interfaces": interfaces})
except RuntimeError as exc:
return _error(str(exc), 500)
# ---------------------------------------------------------------------------
# Zone services
# ---------------------------------------------------------------------------
@bp.route("/zones/<name>/services", methods=["POST"])
def set_zone_services_bp(name):
body = request.get_json(silent=True) or {}
services = body.get("services", [])
if not isinstance(services, list):
return _error("'services' must be a list", 400)
try:
set_zone_services(name, services)
return _ok({"zone": name, "services": services})
except RuntimeError as exc:
return _error(str(exc), 500)
# ---------------------------------------------------------------------------
# Available services and interfaces
# ---------------------------------------------------------------------------
@bp.route("/services", methods=["GET"])
def list_services():
try:
return _ok(get_services())
except RuntimeError as exc:
return _error(str(exc), 500)
@bp.route("/interfaces", methods=["GET"])
def list_interfaces():
try:
return _ok(get_interfaces())
except RuntimeError as exc:
return _error(str(exc), 500)
# ---------------------------------------------------------------------------
# Rich rules
# ---------------------------------------------------------------------------
@bp.route("/rich-rules", methods=["POST"])
def add_rich_rule_bp():
body = request.get_json(silent=True) or {}
zone = body.get("zone", "").strip()
rule = body.get("rule", "").strip()
if not zone or not rule:
return _error("Both 'zone' and 'rule' are required", 400)
try:
add_rich_rule(zone, rule)
return _ok({"zone": zone, "rule": rule})
except RuntimeError as exc:
return _error(str(exc), 500)
@bp.route("/rich-rules", methods=["DELETE"])
def remove_rich_rule_bp():
body = request.get_json(silent=True) or {}
zone = body.get("zone", "").strip()
rule = body.get("rule", "").strip()
if not zone or not rule:
return _error("Both 'zone' and 'rule' are required", 400)
try:
remove_rich_rule(zone, rule)
return _ok({"zone": zone, "rule": rule})
except RuntimeError as exc:
return _error(str(exc), 500)
@bp.route("/rich-rules/<zone>", methods=["GET"])
def list_rich_rules(zone):
try:
rules = get_rich_rules(zone)
return _ok(rules)
except RuntimeError as exc:
return _error(str(exc), 500)
# ---------------------------------------------------------------------------
# Masquerade (NAT)
# ---------------------------------------------------------------------------
@bp.route("/masquerade", methods=["POST"])
def set_masquerade_bp():
body = request.get_json(silent=True) or {}
zone = body.get("zone", "").strip()
enable = body.get("enable")
if not zone or enable is None:
return _error("'zone' and 'enable' (bool) are required", 400)
try:
set_masquerade(zone, bool(enable))
return _ok({"zone": zone, "masquerade": bool(enable)})
except RuntimeError as exc:
return _error(str(exc), 500)
# ---------------------------------------------------------------------------
# Port forwarding
# ---------------------------------------------------------------------------
@bp.route("/forward-port", methods=["POST"])
def add_forward_port_bp():
body = request.get_json(silent=True) or {}
zone = body.get("zone", "").strip()
port = body.get("port")
proto = body.get("proto", "").strip()
toaddr = body.get("toaddr")
toport = body.get("toport")
if not zone or port is None or not proto:
return _error("'zone', 'port', and 'proto' are required", 400)
try:
add_forward_port(
zone,
int(port),
proto,
toaddr=str(toaddr) if toaddr else None,
toport=int(toport) if toport else None,
)
return _ok({"zone": zone, "port": int(port), "proto": proto})
except (ValueError, RuntimeError) as exc:
code = 400 if isinstance(exc, ValueError) else 500
return _error(str(exc), code)
@bp.route("/forward-port", methods=["DELETE"])
def remove_forward_port_bp():
body = request.get_json(silent=True) or {}
zone = body.get("zone", "").strip()
port = body.get("port")
proto = body.get("proto", "").strip()
toaddr = body.get("toaddr")
toport = body.get("toport")
if not zone or port is None or not proto:
return _error("'zone', 'port', and 'proto' are required", 400)
try:
remove_forward_port(
zone,
int(port),
proto,
toaddr=str(toaddr) if toaddr else None,
toport=int(toport) if toport else None,
)
return _ok({"zone": zone, "port": int(port), "proto": proto})
except (ValueError, RuntimeError) as exc:
code = 400 if isinstance(exc, ValueError) else 500
return _error(str(exc), code)