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.
+
+This can be used for either personal invitations, or even for larger organized events. Larger events could be from services like Luma. Proving an invitation for an event might be useful for requesting a POAP, airdrop or for getting an invite to another event.
+
+## Unfinished
+
+**NOTE**: this project is far from ready. Unfortunately, this project did not get much further than the drawing board - the idea was formed but not much was done about it.
+
+## 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.
+
+## 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.
+
+## Lessons Learned (For Submission)
+
+- Time should be reserved for this kind of projects, properly
+- This project's best takeaway (for me, at least) was getting to know the Aztec community a bit, learn how the system works and seeing what others are building.
+- A lot of various incompatibility issues were faced, and those were documented in the parent project. Luckily, getting over those did not require much time.
+
+## Project Links (For Submission)
+
+This project utilizes heavily code from https://github.com/saleel/gitclaim  .
+
+## Video Demo (For Submission)
+
+Not available.

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

@@ -0,0 +1 @@
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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

@@ -0,0 +1,62 @@
+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' });
+  }
+}