Sucukdeluxe
76a228fb7c
Redesign the desktop workspace with task sidebars, live filters, clearer settings, and an accessible update dialog. Harden encrypted backup imports, configuration persistence, history retention, queue snapshots, shutdown recovery, and update installation ordering. Publish verified Windows artifacts and refreshed English documentation.
51 lines
1.6 KiB
JavaScript
51 lines
1.6 KiB
JavaScript
function normalizeIp(ip) {
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return String(ip || '').trim().replace(/^::ffff:/i, '').toLowerCase();
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}
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function isLoopbackIp(ip) {
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const c = normalizeIp(ip);
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return c === '' || c === '::1' || c === 'localhost' || /^127\./.test(c);
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}
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function ipv4ToInt(ip) {
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const parts = String(ip).split('.');
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if (parts.length !== 4) return null;
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let n = 0;
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for (const p of parts) {
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if (!/^\d{1,3}$/.test(p)) return null;
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const v = Number(p);
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if (v < 0 || v > 255) return null;
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n = (n << 8) + v;
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}
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return n >>> 0;
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}
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function matchIpRule(clientIp, rule) {
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const client = normalizeIp(clientIp);
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const r = String(rule || '').trim().toLowerCase();
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if (!r) return false;
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if (r === '*' || r === '0.0.0.0/0') return true;
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if (r === client) return true;
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const slash = r.indexOf('/');
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if (slash > 0) {
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const baseInt = ipv4ToInt(r.slice(0, slash));
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const clientInt = ipv4ToInt(client);
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const bits = Number(r.slice(slash + 1));
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if (baseInt === null || clientInt === null || !Number.isInteger(bits) || bits < 0 || bits > 32) return false;
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if (bits === 0) return true;
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const mask = bits === 32 ? 0xffffffff : (~((1 << (32 - bits)) - 1)) >>> 0;
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return (clientInt & mask) === (baseInt & mask);
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}
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return false;
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}
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function evaluateClientAllowed(clientIp, rules) {
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const client = normalizeIp(clientIp);
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if (isLoopbackIp(client)) return true;
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const list = Array.isArray(rules) ? rules : [];
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if (list.length === 0) return false;
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return list.some((rule) => matchIpRule(client, rule));
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}
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module.exports = { normalizeIp, isLoopbackIp, ipv4ToInt, matchIpRule, evaluateClientAllowed };
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