fase(17): licensing module with RSA validation

src/scripts/generate-license.ts

@@ -0,0 +1,80 @@
+#!/usr/bin/env ts-node
+/**
+ * ABE License Key Generator (internal tool)
+ * Usage: ts-node src/scripts/generate-license.ts --plan pro --org "Acme Corp" --email admin@acme.com --expires 2027-01-01
+ */
+import crypto from 'crypto';
+import fs from 'fs';
+import path from 'path';
+
+interface Args {
+  plan: 'free' | 'pro' | 'enterprise';
+  org: string;
+  email: string;
+  expires: string | null;
+  keyFile: string;
+}
+
+function parseArgs(): Args {
+  const args = process.argv.slice(2);
+  const get = (flag: string): string | undefined => {
+    const idx = args.indexOf(flag);
+    return idx >= 0 ? args[idx + 1] : undefined;
+  };
+
+  const plan = (get('--plan') ?? 'pro') as Args['plan'];
+  const org = get('--org') ?? 'Unknown Organization';
+  const email = get('--email') ?? '';
+  const expires = get('--expires') ?? null;
+  const keyFile = get('--key') ?? path.join(process.cwd(), 'license-private.pem');
+
+  return { plan, org, email, expires, keyFile };
+}
+
+function generateLicense(args: Args): string {
+  if (!fs.existsSync(args.keyFile)) {
+    throw new Error(
+      `Private key not found at ${args.keyFile}.\n` +
+      'Generate with: openssl genrsa -out license-private.pem 2048'
+    );
+  }
+
+  const privateKeyPem = fs.readFileSync(args.keyFile, 'utf-8');
+  const privateKey = crypto.createPrivateKey(privateKeyPem);
+
+  const payload = {
+    plan: args.plan,
+    organizationName: args.org,
+    email: args.email,
+    issuedAt: new Date().toISOString(),
+    expiresAt: args.expires ? new Date(args.expires).toISOString() : null,
+  };
+
+  const payloadJson = JSON.stringify(payload);
+  const payloadB64 = Buffer.from(payloadJson, 'utf-8').toString('base64');
+
+  const signature = crypto.sign('sha256', Buffer.from(payloadJson, 'utf-8'), privateKey);
+  const signatureB64 = signature.toString('base64');
+
+  return `${payloadB64}.${signatureB64}`;
+}
+
+function main(): void {
+  const args = parseArgs();
+  try {
+    const licenseKey = generateLicense(args);
+    console.log('\n=== ABE License Key ===');
+    console.log(licenseKey);
+    console.log('\n=== Details ===');
+    console.log(`Plan: ${args.plan}`);
+    console.log(`Organization: ${args.org}`);
+    console.log(`Email: ${args.email}`);
+    console.log(`Expires: ${args.expires ?? 'Never'}`);
+    console.log('===================\n');
+  } catch (err) {
+    console.error('Error generating license:', String(err));
+    process.exit(1);
+  }
+}
+
+main();