Project: "Invite only"

inviteonly/README.md

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+# Invite only
+
+This project is for proving you have received an invitation by email to an event.
+
+Your identity is kept private by utilizing the ZK capabilities of zkEmail and Aztec.
+
+## Challenge Selection
+The selected challenge is "zkEmail Guardian".
+
+## Team information
+
+Lauri Peltonen, ZK developer.
+
+## Technical Approach
+
+Utilize zkEmail to prove that the user has received an email from a certain email address and that the email includes a certain keyword.
+
+If time, create a minimal frontend.
+
+## Expected Outcomes
+
+A way for anyone to prove that they are invited to an event, without exposing their email address. If time permits, a crude website to demonstrate - otherwise interaction through CLI.
+
+## Credits
+
+This project utilizes heavily code from https://github.com/saleel/gitclaim .
+
+## Lessons Learned (For Submission)
+
+- What are the most important takeaways from your project?
+- Are there any patterns or best practices that you've learned that would be useful for other projects?
+- Highlight reusable code patterns, key code snippets, and best practices - what are some of the ‘lego bricks’ you’ve built, and how could someone else best use them?
+
+## Project Links (For Submission)
+
+Please provide links to any relevant documentation, code, or other resources that you've used in your project.
+
+## Video Demo (For Submission)
+
+Please provide a link to a video demo of your project. The demo should be no longer than 5 minutes and should include a brief intro to your team and your project.

inviteonly/app/.env.example

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+SUPABASE_URL=
+SUPABASE_SERVICE_ROLE_KEY=
+NEXT_PUBLIC_GOOGLE_CLIENT_ID=
+# TEMP_DIR=/tmp

inviteonly/app/.gitignore

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+.next
+node_modules

inviteonly/app/assets/circuit-vkey.json

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inviteonly/app/components/layout.tsx

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+import React from "react";
+
+function Header() {
+  return (
+    <header className="navbar">
+      <div className="logo">
+        GitClaim
+      </div>
+    </header>
+  );
+}
+
+export default function Layout({ children }: { children: React.ReactNode }) {
+  return (
+    <>
+      <Header />
+      <div className="container">{children}</div>
+    </>
+  )
+}

inviteonly/app/next-env.d.ts

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+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/pages/building-your-application/configuring/typescript for more information.

inviteonly/app/next.config.mjs

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+import dotenv from 'dotenv';
+import webpack from "webpack";
+
+dotenv.config();
+
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  experimental: {
+    outputFileTracingIncludes: {
+      '/api/claim-airdrop': [
+        './node_modules/@aztec/bb.js/dest/node/barretenberg_wasm/**/*',
+        './node_modules/@aztec/bb.js/dest/node/barretenberg_wasm/barretenberg_wasm_thread/factory/node/thread.worker.js'
+      ],
+      '/api/claim-airdrop/': [
+        './node_modules/@aztec/bb.js/dest/node/barretenberg_wasm/**/*',
+        './node_modules/@aztec/bb.js/dest/node/barretenberg_wasm/barretenberg_wasm_thread/factory/node/thread.worker.js'
+      ],
+    },
+  },
+  reactStrictMode: true,
+  sassOptions: {
+    includePaths: ['./'],
+  },
+  images: {
+    remotePatterns: [
+      {
+        protocol: 'https',
+        hostname: 'developers.google.com',
+      },
+    ],
+  },
+  env: {
+    NEXT_PUBLIC_GOOGLE_CLIENT_ID: process.env.NEXT_PUBLIC_GOOGLE_CLIENT_ID,
+  },
+  webpack: (config) => {
+    config.experiments = {
+      asyncWebAssembly: true,
+      syncWebAssembly: true,
+      layers: true,
+    }
+    config.plugins.push(
+      new webpack.NormalModuleReplacementPlugin(/^node:/, (resource) => {
+        resource.request = resource.request.replace(/^node:/, "");
+      })
+    );
+    return config
+  },
+  async headers() {
+    // These headers are necessary to enabled SharedArrayBuffer 
+    // which is needed for multi-threaded proof generation
+    return [
+      {
+        source: '/:path*',
+        headers: [
+          {
+            key: 'Cross-Origin-Embedder-Policy',
+            value: 'require-corp',
+          },
+          {
+            key: 'Cross-Origin-Opener-Policy',
+            value: 'same-origin',
+          },
+        ],
+      },
+    ];
+  },
+};
+
+export default nextConfig;

inviteonly/app/package.json

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+{
+  "name": "ui",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@mach-34/zkemail-nr": "^1.1.0",
+    "@noir-lang/backend_barretenberg": "0.35.0-999071b.nightly",
+    "@noir-lang/noir_js": "0.35.0-999071b.nightly",
+    "@supabase/supabase-js": "^2.45.4",
+    "bulma": "^1.0.2",
+    "cal-sans": "^1.0.1",
+    "dotenv": "^16.4.5",
+    "idb-keyval": "^6.2.1",
+    "next": "14.2.11",
+    "react": "^18",
+    "react-dom": "^18",
+    "react-dropzone": "^14.2.9",
+    "sass": "^1.78.0"
+  },
+  "resolutions": {
+    "@zk-email/helpers": "6.1.6",
+    "@aztec/bb.js": "https://gitpkg.vercel.app/saleel/aztec-packages/barretenberg/ts?master"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/react": "^18",
+    "@types/react-dom": "^18",
+    "eslint": "^8",
+    "eslint-config-next": "14.2.11",
+    "typescript": "^5",
+    "webpack": "^5.95.0"
+  },
+  "eslintConfig": {
+    "extends": [
+      "next/core-web-vitals",
+      "next/typescript"
+    ],
+    "rules": {
+      "max-len": [
+        "error",
+        {
+          "code": 120
+        }
+      ]
+    }
+  },
+  "packageManager": "[email protected]+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
+}

inviteonly/app/pages/_app.tsx

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+import type { AppProps } from "next/app";
+import Layout from "../components/layout";
+import "../styles/main.scss";
+
+export default function MyApp({ Component, pageProps }: AppProps) {
+  return (
+    <Layout>
+      <Component {...pageProps} />
+    </Layout>
+  );
+}

inviteonly/app/pages/_document.tsx

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+import { Html, Head, Main, NextScript } from 'next/document'
+
+export default function Document() {
+  return (
+    <Html lang="en">
+      <Head />
+      <body>
+        <Main />
+        <NextScript />
+      </body>
+    </Html>
+  )
+}

inviteonly/app/pages/api/claim-airdrop.ts

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+import type { NextApiRequest, NextApiResponse } from 'next';
+import { verifyProof } from '../../utils';
+
+type ResponseData = {
+  success: boolean;
+  message: string;
+};
+
+// WARNING!
+// In-memory storage for nullifiers
+// This will be reset during every server restart
+// Replace with a database for actual use
+const usedNullifiers = new Set<string>();
+
+export default async function handler(
+  req: NextApiRequest,
+  res: NextApiResponse<ResponseData>
+) {
+  if (req.method !== 'POST') {
+    return res.status(405).json({ success: false, message: 'Method Not Allowed' });
+  }
+
+  const { proof, publicInputs } = req.body;
+
+  if (!proof || !publicInputs) {
+    return res.status(400).json({ success: false, message: 'Missing proof or public inputs' });
+  }
+
+  try {
+    // Verify the proof
+    const isValid = await verifyProof(proof, publicInputs);
+    if (!isValid) {
+      return res.status(400).json({ success: false, message: 'Invalid proof' });
+    }
+
+    // Construct the repo URL string from the first 50 bytes of publicInputs
+/*     const repoUrlBytes = publicInputs.slice(0, 50);
+    const repoUrl = repoUrlBytes.map((byte: number) => String.fromCharCode(byte)).join('').trim();
+ */
+    // Check if the repo is eligible
+/*     if (!isEligibleRepo(repoUrl)) { 
+      return res.status(403).json({ success: false, message: 'Repository is not eligible for the airdrop' });
+    } */
+
+    // Extract nullifier from public inputs
+    const nullifier = publicInputs[50];
+
+    // Check if nullifier has been used before
+    if (usedNullifiers.has(nullifier)) {
+      return res.status(400).json({ success: false, message: 'User already claimed the airdrop (nullifier found)' });
+    }
+
+    // Store the nullifier
+    usedNullifiers.add(nullifier);
+
+    // Airdrop claimed successfully
+    return res.status(200).json({ success: true, message: 'Airdrop claimed successfully' });
+  } catch (error) {
+    console.error('Error claiming airdrop:', error);
+    return res.status(500).json({ success: false, message: 'Internal server error' });
+  }
+}