Initial import of verae-access-web from zapier monorepo

NATS.md

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+# NATS — verae-access-web
+
+Plane `web`. Ingress `verae.access.web.in` / `verae.access.web.billing.*`. Must pass `verae.access.authz.check`. Internal: `verae.billing.statement.get`, `verae.billing.balance.adjust` (reload/payment only).

README.md

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+# verae-access-web
+
+**Direct web** access plane. Customer browsers hit this process, not Zapier and not the NATS port.
+
+**Forgejo:** https://git.georgelambert.org/marchon/verae-access-web
+
+Every NATS hop is `verae.access.web.*` → `verae.access.authz.check` → internal `verae.billing.statement.get` (reload only, not CS credits).
+
+| Route | Job |
+|-------|-----|
+| `GET /health` | `{ plane: "web" }` |
+| `GET /statement/:id` | Authz then statement |
+| `POST /reload` | Authz then `balance.adjust` kind=reload |
+
+Port `:3021`.

package-lock.json

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+{
+  "name": "verae-access-web",
+  "version": "0.1.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "verae-access-web",
+      "version": "0.1.0",
+      "dependencies": {
+        "nats": "^2.28.2"
+      }
+    },
+    "node_modules/nats": {
+      "version": "2.29.3",
+      "resolved": "https://registry.npmjs.org/nats/-/nats-2.29.3.tgz",
+      "integrity": "sha512-tOQCRCwC74DgBTk4pWZ9V45sk4d7peoE2njVprMRCBXrhJ5q5cYM7i6W+Uvw2qUrcfOSnuisrX7bEx3b3Wx4QA==",
+      "deprecated": "Package moved. Use @nats-io/transport-node from https://github.com/nats-io/nats.js",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "nkeys.js": "1.1.0"
+      },
+      "engines": {
+        "node": ">= 14.0.0"
+      }
+    },
+    "node_modules/nkeys.js": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/nkeys.js/-/nkeys.js-1.1.0.tgz",
+      "integrity": "sha512-tB/a0shZL5UZWSwsoeyqfTszONTt4k2YS0tuQioMOD180+MbombYVgzDUYHlx+gejYK6rgf08n/2Df99WY0Sxg==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "tweetnacl": "1.0.3"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
+    "node_modules/tweetnacl": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-1.0.3.tgz",
+      "integrity": "sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==",
+      "license": "Unlicense"
+    }
+  }
+}

package.json

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+{
+  "name": "verae-access-web",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "description": "Direct customer web access plane (not Zapier)",
+  "scripts": {
+    "start": "node src/server.js",
+    "test": "node --test test/*.test.js"
+  },
+  "dependencies": {
+    "nats": "^2.28.2"
+  }
+}

src/gate.js

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+const AUTHZ = (process.env.AUTHZ_URL || 'http://127.0.0.1:3020').replace(/\/$/, '');
+const BOOKS = (process.env.ACCOUNT_BALANCE_URL || 'http://127.0.0.1:3010').replace(/\/$/, '');
+
+export const PLANE = 'web';
+export const AUTHZ_CHECK = 'verae.access.authz.check';
+
+export async function check(subject, { principal, kind, payload } = {}) {
+  const r = await fetch(`${AUTHZ}/check`, {
+    method: 'POST',
+    headers: { 'content-type': 'application/json' },
+    body: JSON.stringify({ plane: PLANE, subject, principal, kind, payload }),
+  });
+  return { status: r.status, body: await r.json().catch(() => ({ allow: false })) };
+}
+
+export async function statement(customerId, principal) {
+  const gate = await check('verae.billing.statement.get', { principal });
+  if (!gate.body.allow) return { status: 403, body: gate.body };
+  const url = process.env.NATS_URL;
+  if (url) {
+    try {
+      const { connect, StringCodec } = await import('nats');
+      const nc = await connect({ servers: url.split(','), name: 'verae-access-web' });
+      const sc = StringCodec();
+      const m = await nc.request(
+        'verae.billing.statement.get',
+        sc.encode(JSON.stringify({ customerId, plane: PLANE, principal })),
+        { timeout: 2000 },
+      );
+      const out = JSON.parse(sc.decode(m.data) || '{}');
+      await nc.close();
+      return { status: 200, body: { ...out, source: 'nats', plane: PLANE } };
+    } catch {
+      /* HTTP fallback */
+    }
+  }
+  const r = await fetch(`${BOOKS}/statement/${customerId}`);
+  return { status: r.status, body: { ...(await r.json().catch(() => ({}))), source: 'account-balance', plane: PLANE } };
+}
+
+export async function reload(customerId, cents, principal) {
+  const gate = await check('verae.billing.balance.adjust', { principal, kind: 'reload' });
+  if (!gate.body.allow) return { status: 403, body: gate.body };
+  const r = await fetch(`${BOOKS}/adjust`, {
+    method: 'POST',
+    headers: { 'content-type': 'application/json' },
+    body: JSON.stringify({ customerId, cents, reason: 'reload', agent: principal || 'web', kind: 'reload' }),
+  });
+  return { status: r.status, body: { ...(await r.json().catch(() => ({}))), plane: PLANE } };
+}

src/server.js

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+#!/usr/bin/env node
+/** Direct customer web access. Not Zapier. NATS only after authz. */
+import http from 'node:http';
+import { PLANE, statement, reload } from './gate.js';
+
+const PORT = Number(process.env.PORT || 3021);
+
+const server = http.createServer(async (req, res) => {
+  const url = new URL(req.url || '/', `http://127.0.0.1:${PORT}`);
+  const json = (code, obj) => {
+    res.writeHead(code, { 'content-type': 'application/json' });
+    res.end(JSON.stringify(obj));
+  };
+  try {
+    if (req.method === 'GET' && url.pathname === '/health') {
+      return json(200, { ok: true, role: 'verae-access-web', plane: PLANE });
+    }
+    const st = url.pathname.match(/^\/statement\/([^/]+)$/);
+    if (req.method === 'GET' && st) {
+      const out = await statement(st[1], st[1]);
+      return json(out.status, out.body);
+    }
+    if (req.method === 'POST' && url.pathname === '/reload') {
+      const chunks = [];
+      for await (const c of req) chunks.push(c);
+      const body = JSON.parse(Buffer.concat(chunks).toString('utf8') || '{}');
+      const out = await reload(body.customerId, body.cents, body.customerId);
+      return json(out.status, out.body);
+    }
+    json(404, { error: 'not found' });
+  } catch (err) {
+    json(502, { error: err.message });
+  }
+});
+
+server.listen(PORT, '0.0.0.0', () => {
+  process.stdout.write(`verae-access-web http://0.0.0.0:${PORT}/ plane=${PLANE}\n`);
+});

test/health.test.js

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+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { spawn } from 'node:child_process';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');
+const authzRoot = path.join(root, '..', 'verae-access-authz');
+const booksRoot = path.join(root, '..', 'zappier-account-balance');
+
+test('web plane can read statement after authz, cannot skip authz', async () => {
+  const authzPort = 18021;
+  const booksPort = 18022;
+  const webPort = 18023;
+  const authz = spawn(process.execPath, ['src/server.js'], {
+    cwd: authzRoot,
+    env: { ...process.env, PORT: String(authzPort) },
+    stdio: ['ignore', 'pipe', 'pipe'],
+  });
+  const books = spawn(process.execPath, ['src/server.js'], {
+    cwd: booksRoot,
+    env: { ...process.env, PORT: String(booksPort) },
+    stdio: ['ignore', 'pipe', 'pipe'],
+  });
+  const web = spawn(process.execPath, ['src/server.js'], {
+    cwd: root,
+    env: {
+      ...process.env,
+      PORT: String(webPort),
+      AUTHZ_URL: `http://127.0.0.1:${authzPort}`,
+      ACCOUNT_BALANCE_URL: `http://127.0.0.1:${booksPort}`,
+    },
+    stdio: ['ignore', 'pipe', 'pipe'],
+  });
+  await new Promise((r) => setTimeout(r, 600));
+  try {
+    await fetch(`http://127.0.0.1:${booksPort}/adjust`, {
+      method: 'POST',
+      headers: { 'content-type': 'application/json' },
+      body: JSON.stringify({ customerId: 'c-web', cents: 400, kind: 'reload' }),
+    });
+    const h = await (await fetch(`http://127.0.0.1:${webPort}/health`)).json();
+    assert.equal(h.plane, 'web');
+    const st = await (await fetch(`http://127.0.0.1:${webPort}/statement/c-web`)).json();
+    assert.equal(st.prepaidCents, 400);
+    assert.equal(st.plane, 'web');
+  } finally {
+    web.kill('SIGTERM');
+    books.kill('SIGTERM');
+    authz.kill('SIGTERM');
+  }
+});