61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
from flask import Blueprint, request, redirect, flash
|
|
from auth import require_level
|
|
from config_utils import load_core, save_core, verify_core_hash, queued_msg
|
|
import sanitize
|
|
import validation as validate
|
|
|
|
bp = Blueprint('action_upstreamdns', __name__)
|
|
|
|
_VIEW = '/view/view_upstream_dns'
|
|
|
|
|
|
@bp.route('/action/upstreamdns_cardupstreamdns_save', methods=['POST'])
|
|
@require_level('administrator')
|
|
def upstreamdns_cardupstreamdns_save():
|
|
strict_order = 'strict_order' in request.form
|
|
cache_size_raw = request.form.get('cache_size', '').strip()
|
|
submitted = request.form.getlist('upstream_servers')
|
|
|
|
for s in submitted:
|
|
if not s.strip():
|
|
flash('Remove blank server entries before saving.', 'error')
|
|
return redirect(_VIEW)
|
|
|
|
upstream_servers = []
|
|
for s in submitted:
|
|
clean = sanitize.ip(s.strip())
|
|
if not clean:
|
|
flash(f"'{s.strip()}' is not a valid IP address.", 'error')
|
|
return redirect(_VIEW)
|
|
upstream_servers.append(clean)
|
|
|
|
cache_size = validate.int_range(cache_size_raw, 0, None)
|
|
if cache_size is None:
|
|
flash('Cache Size must be a non-negative integer.', 'error')
|
|
return redirect(_VIEW)
|
|
|
|
if not verify_core_hash(request.form.get('config_hash', '')):
|
|
flash('Configuration was modified by another session. Please refresh and try again.', 'error')
|
|
return redirect(_VIEW)
|
|
|
|
core = load_core()
|
|
current = core.get('upstream_dns', {})
|
|
if (strict_order == bool(current.get('strict_order', False)) and
|
|
cache_size == int(current.get('cache_size', 0)) and
|
|
upstream_servers == current.get('upstream_servers', [])):
|
|
flash('No changes detected.', 'info')
|
|
return redirect(_VIEW)
|
|
|
|
core.setdefault('upstream_dns', {}).update({
|
|
'strict_order': strict_order,
|
|
'cache_size': cache_size,
|
|
'upstream_servers': upstream_servers,
|
|
})
|
|
errors = validate.validate_config(core)
|
|
if errors:
|
|
for msg in errors:
|
|
flash(msg, 'error')
|
|
return redirect(_VIEW)
|
|
save_core(core)
|
|
flash(queued_msg('core apply'), 'success')
|
|
return redirect(_VIEW)
|