hoelee
414bf31ba0
- W5 gets username ?u= → Customers→CustomerProducts → {username,known,purchases}
- 无 HMAC(密钥会下发客户端): 改用 CORS 限 drive.digikedai.com + 最小数据 + CF WAF 建议
- 复用现有 NOCODB_* env, 零新增 env
- 2 节点: webhook(GET, lastNode, CORS 头) + Code(w5-body.js)
- footer v2.6 动态行数据源; 待手动导入 n8n
- docs: N8N_WORKFLOWS + PROJECT_STATE 记录 W5 + 导入步骤
81 lines
3.5 KiB
JavaScript
81 lines
3.5 KiB
JavaScript
// ============================================================================
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// W5 runtime body — footer purchase/expiry lookup (PUBLIC, READ-ONLY).
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// Trigger: GET webhook /dk-purchase-check?u=<username>
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// Returns: { username, known, purchases: [{product, expires_at, display_state}] }
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//
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// Security model (no HMAC — key would ship to the client, so it is theatre):
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// - CORS: response header Access-Control-Allow-Origin: https://drive.digikedai.com
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// → only the AList portal origin may READ the response from a browser.
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// - Minimal data: product name + expiry + display_state only (no internal Ids).
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// - Server-side enumeration is mitigated by a Cloudflare WAF rate-limit +
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// Origin/Referer rule on auto.hoelee.com (see delivery guide).
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// - No AList auth requests of any kind (username comes from the caller's own
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// JWT, decoded client-side in the footer) → no empty-client device drift.
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// ============================================================================
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// n8n Code node context (same pattern as W1–W4).
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const ctx = { $env, helpers: this.helpers };
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// GET webhook: n8n puts query-string params under $json.query (fallback: body).
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const item = $json ?? ($input && $input.item ? $input.item.json : {});
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const q = item.query ?? item.body ?? {};
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const username = String(q.u ?? '').trim();
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function linkId(v) {
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if (v == null) return null;
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if (typeof v === 'object' && !Array.isArray(v)) return v.Id ?? v.id ?? null;
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if (Array.isArray(v)) return v[0]?.Id ?? v[0]?.id ?? null;
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return v;
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}
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async function ncGet(path) {
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return await ctx.helpers.httpRequest({
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method: 'GET',
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url: ctx.$env.NOCODB_URL + path,
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headers: { 'xc-token': ctx.$env.NOCODB_TOKEN },
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json: true,
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});
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}
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const empty = () => ({ username, known: false, purchases: [] });
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if (!username) return { json: empty() };
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try {
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const T_CUST = ctx.$env.NOCODB_TABLE_CUSTOMERS;
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const T_CP = ctx.$env.NOCODB_TABLE_CUSTOMERPRODUCTS;
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const today = new Date().toISOString().slice(0, 10);
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// 1. resolve username -> customer (username is unique in Customers)
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const custRows = (await ncGet(
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`/api/v2/tables/${T_CUST}/records?where=(username,eq,${encodeURIComponent(username)})&limit=1`
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)).list || [];
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const customer = custRows[0];
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if (!customer) return { json: empty() };
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// 2. this customer's products (link query by Id, per NocoDB v2 gotchas)
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const cps = (await ncGet(
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`/api/v2/tables/${T_CP}/records?where=(customer.Id,eq,${customer.Id})&limit=500`
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)).list || [];
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const purchases = cps
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.map((c) => {
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const productObj = (typeof c.product === 'object' && c.product) ? c.product : null;
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const name = productObj && productObj.name ? String(productObj.name) : 'Product';
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const expires = c.expires_at ? String(c.expires_at).slice(0, 10) : null;
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let state = (c.status && c.status !== 'active') ? c.status : 'active';
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if (state === 'active' && expires && expires <= today) state = 'expired';
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return { product: name, expires_at: expires, display_state: state };
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})
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.sort((a, b) => {
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const rank = { active: 0, suspended: 1, revoked: 2, expired: 3 };
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if (rank[a.display_state] !== rank[b.display_state]) return rank[a.display_state] - rank[b.display_state];
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return String(a.expires_at || '').localeCompare(String(b.expires_at || ''));
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});
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return { json: { username, known: true, purchases } };
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} catch (err) {
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// graceful: footer renders static rows only on any error
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return { json: { ...empty(), error: String((err && err.message) || err) } };
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}
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