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group-e072
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proposal-d
| Author | SHA1 | Date | |
|---|---|---|---|
|
69464a16b6 |
24
.gitignore
vendored
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.gitignore
vendored
@@ -1,24 +0,0 @@
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# Nuxt dev/build outputs
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||||
.output
|
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.data
|
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.nuxt
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.nitro
|
||||
.cache
|
||||
dist
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|
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# Node dependencies
|
||||
node_modules
|
||||
|
||||
# Logs
|
||||
logs
|
||||
*.log
|
||||
|
||||
# Misc
|
||||
.DS_Store
|
||||
.fleet
|
||||
.idea
|
||||
|
||||
# Local env files
|
||||
.env
|
||||
.env.*
|
||||
!.env.example
|
||||
143
README.md
143
README.md
@@ -1,129 +1,24 @@
|
||||
# 🗳️ P2P Verified Polling App
|
||||
# 🗳️ Simple P2P Poll & Chat
|
||||
|
||||
A decentralized, real-time polling application built with **Nuxt 3**, **Yjs**, and **WebRTC**. This app allows users to create and participate in polls where every vote is cryptographically signed and verified peer-to-peer, ensuring data integrity without a central authority "owning" the results.
|
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This is a minimal prototype of a decentralized governance tool built for the **Demcode Evocracy** experiment. It allows for basic deliberation and voting without a central database or server-side logic.
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|
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---
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## What it does
|
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- **P2P Connectivity:** Uses WebRTC (via PeerJS) to link browsers directly.
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- **Mesh-capable:** Allows multiple connections to sync the same poll state.
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- **Live Sync:** Changes to the poll topic, options, or votes are broadcast to all connected peers.
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- **Chat:** A simple sidebar to discuss the poll in real-time.
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|
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## 🌟 Key Features
|
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## How to use it
|
||||
1. Open the page: [https://andrewlehr.github.io/evocracy-p2p-poll/]
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2. Set your **Nickname** and click "Set".
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3. Share your nickname with a friend.
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4. One person enters the other's nickname in the **Connect** box and clicks "Add Peer".
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5. Once connected, you can set a topic, add options, and vote.
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||||
|
||||
* **Serverless Real-time Sync:** Uses **Yjs** (CRDTs) and **WebRTC** to sync poll data directly between browsers. No database is required for live updates.
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* **Persistence with Nitro:** While the logic is P2P, the **Nuxt/Nitro** backend provides a "Snapshot" service to ensure polls persist even after all peers go offline.
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* **Cryptographic Integrity:** Every vote is signed using **RSA-PSS (Web Crypto API)**. Each user has a unique private key (stored locally via `.pem` files) to ensure votes cannot be forged or tampered with.
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* **Chained Verification:** Implements a "History-Signing" logic where each new vote signs the entire preceding state of the poll, creating a verifiable chain of trust.
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* **Privacy First:** Users identify via UUIDs and Public/Private key pairs rather than traditional accounts.
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## Technical Notes
|
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- **Data Persistence:** There is no database. If everyone closes their browser, the data is lost.
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- **Networking:** It uses a public signaling server to find peers, but the actual data (votes/chat) stays between the browsers.
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- **Conflict Handling:** Uses a simple "Last Write Wins" broadcast to keep peers in sync.
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|
||||
---
|
||||
|
||||
## ⚙️ How It Works
|
||||
|
||||
### 1. Identity Creation
|
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When a new user is created, the system generates a unique **UUID (User ID)** and an **RSA Key Pair**. The user is prompted to save their **Private Key** as a `.pem` file, named after their User ID (e.g., `550e8400-e29b.pem`). This file acts as their "Passport"—it is never uploaded to the server and must be kept secure by the user.
|
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|
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### 2. Authentication
|
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Upon returning to the app, users load their local `.pem` file. The application extracts the Private Key for signing and the UUID for identification. No passwords or central servers are involved in this local-first login process.
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|
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### 3. Joining a Poll
|
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When a user joins a poll, the app fetches the latest binary snapshot from the server to populate a local **Y.Doc**. This ensures the user sees the current state immediately, even before connecting to other peers.
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|
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### 4. The P2P Mesh
|
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The app establishes connections to other active voters via a WebRTC signaling server. Any changes made to the poll (adding options or voting) are broadcasted instantly to all peers using Conflict-free Replicated Data Types (CRDTs) to prevent sync conflicts.
|
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|
||||
### 5. Casting a Signed Vote
|
||||
To ensure security, the voting process follows a strict cryptographic chain:
|
||||
* The app captures the current list of votes.
|
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* It appends the new vote data (User ID + Timestamp).
|
||||
* It signs the **entire array** (the previous history + the new vote) using the user's RSA private key.
|
||||
* The signed update is merged into the shared Yjs Map and broadcasted.
|
||||
|
||||
### 6. Distributed Verification
|
||||
Whenever a peer receives a new update, they fetch the voter's **Public Key** from the API. They then verify that the signature matches the current state of the poll history. If a signature is invalid or the history has been tampered with, the vote is rejected by the peer's local state.
|
||||
|
||||
---
|
||||
|
||||
## 🛠️ Tech Stack
|
||||
|
||||
* **Framework:** [Nuxt 3](https://nuxt.com/) (Vue 3 + TypeScript)
|
||||
* **Conflict-Free Replicated Data Types (CRDT):** [Yjs](https://yjs.dev/)
|
||||
* **P2P Transport:** `y-webrtc`
|
||||
* **Security:** Web Crypto API (SubtleCrypto)
|
||||
* **Backend/Storage:** Nitro (Nuxt's server engine) with filesystem storage drivers
|
||||
|
||||
# AI Disclaimer
|
||||
|
||||
This App was developed with the assistance of AI.
|
||||
|
||||
# Nuxt Minimal Starter
|
||||
|
||||
Look at the [Nuxt documentation](https://nuxt.com/docs/getting-started/introduction) to learn more.
|
||||
|
||||
## Setup
|
||||
|
||||
Make sure to install dependencies:
|
||||
|
||||
```bash
|
||||
# npm
|
||||
npm install
|
||||
|
||||
# pnpm
|
||||
pnpm install
|
||||
|
||||
# yarn
|
||||
yarn install
|
||||
|
||||
# bun
|
||||
bun install
|
||||
```
|
||||
|
||||
## Development Server
|
||||
|
||||
Start the development server on `http://localhost:3000`:
|
||||
|
||||
```bash
|
||||
# npm
|
||||
npm run dev
|
||||
|
||||
# pnpm
|
||||
pnpm dev
|
||||
|
||||
# yarn
|
||||
yarn dev
|
||||
|
||||
# bun
|
||||
bun run dev
|
||||
```
|
||||
|
||||
## Production
|
||||
|
||||
Build the application for production:
|
||||
|
||||
```bash
|
||||
# npm
|
||||
npm run build
|
||||
|
||||
# pnpm
|
||||
pnpm build
|
||||
|
||||
# yarn
|
||||
yarn build
|
||||
|
||||
# bun
|
||||
bun run build
|
||||
```
|
||||
|
||||
Locally preview production build:
|
||||
|
||||
```bash
|
||||
# npm
|
||||
npm run preview
|
||||
|
||||
# pnpm
|
||||
pnpm preview
|
||||
|
||||
# yarn
|
||||
yarn preview
|
||||
|
||||
# bun
|
||||
bun run preview
|
||||
```
|
||||
|
||||
Check out the [deployment documentation](https://nuxt.com/docs/getting-started/deployment) for more information.
|
||||
## Transparency
|
||||
This code was generated with the assistance of **Gemini (Google AI)** to quickly prototype the WebRTC networking logic. The goal was to create a clean, readable foundation that is easy for others to merge or modify during the next phase of the experiment.
|
||||
175
app/app.vue
175
app/app.vue
@@ -1,175 +0,0 @@
|
||||
<style>
|
||||
/* Basic styling to make it look clean */
|
||||
body {
|
||||
font-family: system-ui, -apple-system, sans-serif;
|
||||
background-color: #f4f4f9;
|
||||
color: #333;
|
||||
margin: 0;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
padding: 2rem;
|
||||
}
|
||||
|
||||
header {
|
||||
margin-bottom: 2rem;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
h1 { margin: 0 0 0.5rem 0; }
|
||||
|
||||
input {
|
||||
flex-grow: 1;
|
||||
padding: 0.75rem;
|
||||
border: 1px solid #ccc;
|
||||
border-radius: 6px;
|
||||
font-size: 1rem;
|
||||
}
|
||||
|
||||
button,
|
||||
.button {
|
||||
background: #3b82f6;
|
||||
color: white;
|
||||
border: none;
|
||||
padding: 0.75rem 1rem;
|
||||
border-radius: 6px;
|
||||
cursor: pointer;
|
||||
font-weight: bold;
|
||||
transition: background 0.2s;
|
||||
}
|
||||
|
||||
button:hover,
|
||||
.button:hover { background: #2563eb; }
|
||||
|
||||
.status {
|
||||
font-size: 0.85rem;
|
||||
color: #666;
|
||||
}
|
||||
.status .connected { color: #10b981; font-weight: bold; }
|
||||
|
||||
.connectionFailed { color: #FF2525; font-weight: bold; }
|
||||
|
||||
.poll-container {
|
||||
background: white;
|
||||
padding: 2rem;
|
||||
border-radius: 12px;
|
||||
box-shadow: 0 4px 6px rgba(0,0,0,0.1);
|
||||
width: 100%;
|
||||
max-width: 500px;
|
||||
}
|
||||
|
||||
.back-btn {
|
||||
margin-left: 1rem;
|
||||
padding: 0.2rem 0.5rem;
|
||||
font-size: 0.7rem;
|
||||
background: #64748b;
|
||||
}
|
||||
|
||||
/* Hide the actual file input */
|
||||
input[type="file"] {
|
||||
display: none;
|
||||
}
|
||||
|
||||
</style>
|
||||
<template>
|
||||
<div class="poll-container">
|
||||
<header>
|
||||
<h1 @click="activePollId = null" style="cursor:pointer">P2P Polling App 🗳️</h1>
|
||||
<div class="status">
|
||||
<button v-if="activePollId" @click="activePollId = null" class="back-btn">← Back To List</button>
|
||||
<span :class="{ 'connected': isConnected }">
|
||||
● {{ isConnected ? 'Synced' : 'Waiting for other Peers...' }}
|
||||
</span>
|
||||
<span> | Peers online: {{ connectedPeers }}</span>
|
||||
<h2 v-if="connectionAttempFailed" class="connectionFailed">⚠ Connection to Signaling Server Failed!</h2>
|
||||
<div v-if="user===null" style="margin-top: 10px;">
|
||||
<button @click="createUser">Create New User</button>
|
||||
Or
|
||||
<label title="Select Key File">
|
||||
<span class="button">Login</span>
|
||||
<input
|
||||
type="file"
|
||||
accept=".pem"
|
||||
@change="loadUser"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
</div>
|
||||
</header>
|
||||
|
||||
<main>
|
||||
<PollList v-if="!activePollId" :userid="user?.userid" @select-poll="selectPoll" />
|
||||
<Poll v-else :activePollId="activePollId" :userid="user?.userid" :poll-data="pollData" :addOption="addOption" :vote="vote"/>
|
||||
</main>
|
||||
</div>
|
||||
</template>
|
||||
|
||||
<script setup lang="ts">
|
||||
import { v4 as uuidv4 } from 'uuid';
|
||||
const activePollId = ref<string | null>(null);
|
||||
const user = shallowRef<UserData | null>(null);
|
||||
|
||||
const { pollData, isConnected, connectionAttempFailed, connectedPeers, addOption, vote } = usePoll(activePollId,user);
|
||||
|
||||
const selectPoll = (id: string) => {
|
||||
activePollId.value = id;
|
||||
};
|
||||
|
||||
|
||||
const createUser = async () => {
|
||||
try {
|
||||
const keypair : CryptoKeyPair = await generateUserKeyPair();
|
||||
console.log('keypair:', keypair);
|
||||
const uuid = uuidv4();
|
||||
user.value = {
|
||||
userid: uuid,
|
||||
private_key: keypair.privateKey,
|
||||
public_key: keypair.publicKey,
|
||||
};
|
||||
const prvKeyString = await exportPrivateKey(keypair.privateKey);
|
||||
await savePrivateKeyToFile(prvKeyString,uuid+".pem")
|
||||
|
||||
|
||||
const pubKeyString = await exportPublicKey(keypair.publicKey);
|
||||
await $fetch(`/api/users/${uuid}`, {
|
||||
method: 'POST',
|
||||
body: { public_key: pubKeyString }
|
||||
});
|
||||
} catch (err) {
|
||||
user.value = null
|
||||
console.error("Failed to create new User!", err);
|
||||
}
|
||||
};
|
||||
const loadUser = async (event: Event) => {
|
||||
const target = event.target as HTMLInputElement;
|
||||
const file = target.files?.[0];
|
||||
|
||||
if (file) {
|
||||
try {
|
||||
const content = await file.text();
|
||||
console.log("File loaded: ");
|
||||
if (file.name && content) {
|
||||
try {
|
||||
const uuid = file.name.replace(".pem", "");
|
||||
// Standardize the string for the importer
|
||||
const pkBase64 = content.replace(/-----BEGIN PRIVATE KEY-----|-----END PRIVATE KEY-----/g, "").replace(/\s+/g, "");
|
||||
|
||||
const key = await stringToCryptoKey(pkBase64, "private");
|
||||
|
||||
user.value = {
|
||||
userid: uuid,
|
||||
private_key: key,
|
||||
public_key: undefined, // Note: You might need to import a pub key too!
|
||||
};
|
||||
|
||||
console.log("Login successful for:", uuid);
|
||||
} catch (err) {
|
||||
console.error("Crypto Import Error:", err);
|
||||
alert("The file content is not a valid Private Key.");
|
||||
}
|
||||
}
|
||||
} catch (e) {
|
||||
console.error("Failed to read file", e);
|
||||
}
|
||||
}
|
||||
};
|
||||
</script>
|
||||
@@ -1,83 +0,0 @@
|
||||
<style scoped>
|
||||
.poll-list {
|
||||
list-style: none;
|
||||
padding: 0;
|
||||
margin: 0;
|
||||
}
|
||||
|
||||
.poll-item {
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
align-items: center;
|
||||
padding: 1rem;
|
||||
background: #f8fafc;
|
||||
border: 1px solid #e2e8f0;
|
||||
border-radius: 8px;
|
||||
margin-bottom: 0.5rem;
|
||||
}
|
||||
.poll-title {
|
||||
font-size: 1.1rem;
|
||||
color: #3b82f6;
|
||||
text-transform: uppercase;
|
||||
letter-spacing: 1px;
|
||||
}
|
||||
|
||||
.add-option-form {
|
||||
display: flex;
|
||||
gap: 0.5rem;
|
||||
margin-bottom: 2rem;
|
||||
}
|
||||
|
||||
.option-name { font-weight: 500; }
|
||||
.vote-section { display: flex; align-items: center; gap: 1rem; }
|
||||
.vote-count { font-size: 0.9rem; color: #475569; }
|
||||
.vote-btn { padding: 0.4rem 0.8rem; background: #10b981; }
|
||||
.vote-btn:hover { background: #059669; }
|
||||
|
||||
.vote-btn:disabled,
|
||||
.vote-btn[disabled] { background: #888888; }
|
||||
.vote-btn:disabled:hover,
|
||||
.vote-btn[disabled]:hover { background: #AAAAAA; }
|
||||
</style>
|
||||
|
||||
<template>
|
||||
<div>
|
||||
<h2 class="poll-title">Poll: {{ activePollId }}</h2>
|
||||
<p v-if="Object.keys(pollData).length==0">Note: Add at least one Option to save the Poll.</p>
|
||||
<form @submit.prevent="handleAddNewOption" class="add-option-form" v-if="userid">
|
||||
<input v-model="newOption" placeholder="Enter a new poll option..." required />
|
||||
<button type="submit">Add Option</button>
|
||||
</form>
|
||||
|
||||
<ul class="poll-list">
|
||||
<li v-for="(votes, optionName) in pollData" :key="optionName" class="poll-item">
|
||||
<span class="option-name">{{ optionName }}</span>
|
||||
<div class="vote-section">
|
||||
<span class="vote-count">{{ votes.length }} {{ votes.length === 1 ? 'vote' : 'votes' }}</span>
|
||||
<button @click="vote(String(optionName))" class="vote-btn" :disabled="userid==undefined || voted(votes)">+1</button>
|
||||
</div>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
</template>
|
||||
|
||||
<script setup lang="ts">
|
||||
import type { PollProps, SignedData, VoteData } from '@/utils/types'
|
||||
const props = defineProps<PollProps>()
|
||||
|
||||
const newOption = ref('');
|
||||
const handleAddNewOption = () => {
|
||||
props.addOption(newOption.value);
|
||||
newOption.value = '';
|
||||
};
|
||||
|
||||
|
||||
const voted = (votes: SignedData<VoteData>[]) => {
|
||||
for(let vote of votes){
|
||||
if(vote.data.userid == props.userid){
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
</script>
|
||||
@@ -1,64 +0,0 @@
|
||||
<style scoped>
|
||||
.poll-list { margin-top: 1rem; }
|
||||
.empty-state { text-align: center; color: #94a3b8; font-style: italic; }
|
||||
.create-poll { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
|
||||
.poll-links { list-style: none; padding: 0; }
|
||||
.poll-link-btn {
|
||||
width: 100%;
|
||||
text-align: left;
|
||||
background: #f1f5f9;
|
||||
color: #1e293b;
|
||||
margin-bottom: 0.5rem;
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
}
|
||||
.poll-link-btn:hover { background: #e2e8f0; }
|
||||
</style>
|
||||
|
||||
<template>
|
||||
<div class="poll-list">
|
||||
<h3>Available Polls</h3>
|
||||
|
||||
<ul v-if="polls && polls.length > 0" class="poll-links">
|
||||
<li v-for="id in polls" :key="id">
|
||||
<button class="poll-link-btn" @click="$emit('select-poll', id)">
|
||||
{{ id }} <span>→</span>
|
||||
</button>
|
||||
</li>
|
||||
</ul>
|
||||
<p v-else class="empty-state">No polls found. Create the first one!</p>
|
||||
<div class="create-poll" v-if="userid !== undefined">
|
||||
<input
|
||||
v-model="newPollId"
|
||||
placeholder="Enter new poll name..."
|
||||
@keyup.enter="createPoll"
|
||||
/>
|
||||
<button @click="createPoll">Create & Join</button>
|
||||
</div>
|
||||
</div>
|
||||
</template>
|
||||
|
||||
<script setup lang="ts">
|
||||
import type { PollListProps } from '@/utils/types'
|
||||
const props = defineProps<PollListProps>()
|
||||
const newPollId = ref('');
|
||||
const polls = ref<string[]>([]);
|
||||
|
||||
// Fetch existing polls on mount
|
||||
const fetchPolls = async () => {
|
||||
const data = await $fetch<{ polls: string[] }>('/api/polls');
|
||||
polls.value = data.polls;
|
||||
};
|
||||
|
||||
const createPoll = () => {
|
||||
const id = newPollId.value.trim().toLowerCase().replace(/\s+/g, '-');
|
||||
if (id) {
|
||||
// In a real app, you might want to POST to create it first,
|
||||
// but here we just navigate to it and let usePoll handle the save.
|
||||
emit('select-poll', id);
|
||||
}
|
||||
};
|
||||
|
||||
const emit = defineEmits(['select-poll']);
|
||||
onMounted(fetchPolls);
|
||||
</script>
|
||||
@@ -1,131 +0,0 @@
|
||||
// composables/usePoll.ts
|
||||
import { ref, watch, onUnmounted } from 'vue';
|
||||
import * as Y from 'yjs';
|
||||
|
||||
export const usePoll = (pollId: Ref<string | null>, user: Ref<UserData | null>) => {
|
||||
const pollData = ref<PollData>({});
|
||||
const isConnected = ref(false);
|
||||
const connectionAttempFailed = ref(false);
|
||||
const connectedPeers = ref(1);
|
||||
|
||||
let ydoc: Y.Doc | null = null;
|
||||
let provider: any = null;
|
||||
let yMap: Y.Map<SignedData<VoteData>[]> | null = null;
|
||||
|
||||
const cleanup = () => {
|
||||
if (provider) provider.disconnect();
|
||||
if (ydoc) ydoc.destroy();
|
||||
isConnected.value = false;
|
||||
pollData.value = {};
|
||||
};
|
||||
|
||||
const initPoll = async (id: string) => {
|
||||
cleanup(); // Clear previous session
|
||||
|
||||
ydoc = new Y.Doc();
|
||||
|
||||
// 1. Fetch Snapshot from Nuxt API
|
||||
try {
|
||||
const response = await $fetch<{ update: number[] | null }>(`/api/polls/${id}`).catch((e) => {
|
||||
console.error("Failed to get poll: " + id,e)
|
||||
});
|
||||
//trust the server without verification.
|
||||
if (response?.update) {
|
||||
Y.applyUpdate(ydoc, new Uint8Array(response.update));
|
||||
}
|
||||
} catch (err) {
|
||||
console.error('Persistence fetch failed', err);
|
||||
}
|
||||
|
||||
yMap = ydoc.getMap<SignedData<VoteData>[]>('shared-poll');
|
||||
|
||||
// 2. Local State Sync
|
||||
yMap.observe(async () => {
|
||||
await performUpdateAndVerify();
|
||||
saveStateToServer(id);
|
||||
});
|
||||
await performUpdateAndVerify();
|
||||
|
||||
// 3. P2P Connection
|
||||
const { WebrtcProvider } = await import('y-webrtc');
|
||||
provider = new WebrtcProvider(`nuxt-p2p-${id}`, ydoc, {
|
||||
signaling: ["ws://localhost:4444", "ws://lynxpi.ddns.net:4444"]
|
||||
});
|
||||
|
||||
provider.on('synced', (arg: {synced: boolean}) => {
|
||||
isConnected.value = arg.synced;
|
||||
console.log('Connection synced:', arg.synced) // "connected" or "disconnected"
|
||||
});
|
||||
provider.on('status', (event: { connected: boolean }) => {
|
||||
console.log('Connection status:', event.connected) // "connected" or "disconnected"
|
||||
})
|
||||
provider.on('peers', (data: any) => {
|
||||
connectedPeers.value = data.webrtcPeers.length + 1
|
||||
});
|
||||
};
|
||||
|
||||
const saveStateToServer = async (id: string) => {
|
||||
if (!ydoc) return;
|
||||
const stateUpdate = Y.encodeStateAsUpdate(ydoc);
|
||||
await $fetch(`/api/polls/${id}`, {
|
||||
method: 'POST',
|
||||
body: { update: Array.from(stateUpdate) }
|
||||
}).catch((e) => {
|
||||
console.error("Failed to update poll",e)
|
||||
});
|
||||
};
|
||||
|
||||
// Watch for ID changes (e.g., user clicks a link or goes back)
|
||||
watch(pollId, (newId) => {
|
||||
if (newId && import.meta.client) {
|
||||
initPoll(newId);
|
||||
} else {
|
||||
cleanup();
|
||||
}
|
||||
}, { immediate: true });
|
||||
|
||||
onUnmounted(cleanup);
|
||||
|
||||
const addOption = (optionName: string) => {
|
||||
if (yMap && !yMap.has(optionName)) yMap.set(optionName, []);
|
||||
};
|
||||
|
||||
const performUpdateAndVerify = async () => {
|
||||
const pollDataUpdate = yMap!.toJSON();
|
||||
console.log("Poll Data Update: ", pollDataUpdate)
|
||||
for(var option in pollDataUpdate){
|
||||
console.log("verifying votes for option: " + option);
|
||||
const votes = pollDataUpdate[option] || [];
|
||||
const verified = await verifyAllVotesForOption(votes);
|
||||
if(!verified){
|
||||
console.error("Failed to verify option: "+option)
|
||||
return;
|
||||
}
|
||||
}
|
||||
console.log("All options verified! :)")
|
||||
pollData.value = pollDataUpdate
|
||||
}
|
||||
|
||||
const vote = async (optionName: string) => {
|
||||
const currentUser = user.value;
|
||||
if (currentUser != undefined && yMap?.has(optionName)) {
|
||||
const voteData = [...(yMap.get(optionName) || [])];
|
||||
if(voteData != undefined && currentUser.private_key){
|
||||
var unsignedVoteData : VoteData = {
|
||||
userid: currentUser.userid,
|
||||
timestamp: new Date().toISOString()
|
||||
}
|
||||
var newVote : SignedData<VoteData> = {
|
||||
data: unsignedVoteData,
|
||||
signature: "",
|
||||
}
|
||||
voteData?.push(newVote)
|
||||
const signature = await signVote(voteData,currentUser.private_key);
|
||||
newVote.signature=signature
|
||||
yMap?.set(optionName, voteData);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
return { pollData, isConnected, connectionAttempFailed, connectedPeers, addOption, vote };
|
||||
};
|
||||
@@ -1,2 +0,0 @@
|
||||
export const user = (user: Ref<UserData | null>) => {
|
||||
}
|
||||
@@ -1,187 +0,0 @@
|
||||
// utils/crypto.ts
|
||||
export const generateUserKeyPair = async () => {
|
||||
return await window.crypto.subtle.generateKey(
|
||||
{
|
||||
name: "RSASSA-PKCS1-v1_5",
|
||||
modulusLength: 2048,
|
||||
publicExponent: new Uint8Array([1, 0, 1]), // 65537
|
||||
hash: "SHA-256",
|
||||
},
|
||||
true, // extractable
|
||||
["sign", "verify"]
|
||||
);
|
||||
};
|
||||
|
||||
export const signVote = async (data: any, privateKey: CryptoKey) => {
|
||||
const encoder = new TextEncoder();
|
||||
const encodedData = encoder.encode(JSON.stringify(data));
|
||||
|
||||
const signature = await window.crypto.subtle.sign(
|
||||
"RSASSA-PKCS1-v1_5",
|
||||
privateKey,
|
||||
encodedData
|
||||
);
|
||||
|
||||
// Convert to Base64 or Hex to store in Yjs easily
|
||||
return btoa(String.fromCharCode(...new Uint8Array(signature)));
|
||||
};
|
||||
|
||||
export const verifyVote = async (data: any, signatureStr: string, publicKey: CryptoKey) => {
|
||||
const encoder = new TextEncoder();
|
||||
const encodedData = encoder.encode(JSON.stringify(data));
|
||||
|
||||
// Convert Base64 back to Uint8Array
|
||||
const signature = Uint8Array.from(atob(signatureStr), c => c.charCodeAt(0));
|
||||
|
||||
return await window.crypto.subtle.verify(
|
||||
"RSASSA-PKCS1-v1_5",
|
||||
publicKey,
|
||||
signature,
|
||||
encodedData
|
||||
);
|
||||
};
|
||||
|
||||
/**
|
||||
* Verifies a specific vote within an array of votes by
|
||||
* reconstructing the "signed state" at that point in time.
|
||||
*/
|
||||
export const verifyChainedVote = async (
|
||||
voteData: SignedData<VoteData>[],
|
||||
index: number
|
||||
) => {
|
||||
const voteToVerify = voteData[index];
|
||||
console.log("Verifying vote: " + voteToVerify)
|
||||
if(voteToVerify) {
|
||||
// 1. Reconstruct the exact data state the user signed
|
||||
// We need the array exactly as it was when they pushed their vote
|
||||
const historicalState = voteData.slice(0, index + 1).map((v, i) => {
|
||||
if (i === index) {
|
||||
// For the current vote, the signature must be empty string
|
||||
// because it wasn't signed yet when passed to signVote
|
||||
return { ...v, signature: "" };
|
||||
}
|
||||
return v;
|
||||
});
|
||||
|
||||
try {
|
||||
// 2. Fetch public key
|
||||
const response = await $fetch<{ public_key: string }>(`/api/users/${voteToVerify.data.userid}`);
|
||||
console.log("Got key: ",response)
|
||||
const pubKey = await stringToCryptoKey(response.public_key, 'public');
|
||||
|
||||
console.log("Using pubKey to verify Vote.")
|
||||
// 3. Verify: Does this historicalState match the signature?
|
||||
return await verifyVote(historicalState, voteToVerify.signature, pubKey);
|
||||
} catch (err) {
|
||||
console.error("Verification failed")
|
||||
console.error(err);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
console.error("Vote is undefined or null");
|
||||
return false;
|
||||
};
|
||||
|
||||
export const verifyAllVotesForOption = async (votes: SignedData<VoteData>[]) => {
|
||||
console.log("verifying votes for option ",votes);
|
||||
for (let i = votes.length-1; i >= 0 ; i--) {
|
||||
const isValid = await verifyChainedVote(votes, i);
|
||||
if(!isValid){
|
||||
console.error("Error! Invalid Vote at: " + i,votes)
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
};
|
||||
|
||||
// Helper to convert ArrayBuffer to Base64 string
|
||||
const bufferToBase64 = (buf: ArrayBuffer) =>
|
||||
window.btoa(String.fromCharCode(...new Uint8Array(buf)));
|
||||
|
||||
export const exportPublicKey = async (key: CryptoKey) => {
|
||||
// Export Public Key
|
||||
const exportedPublic = await window.crypto.subtle.exportKey("spki", key);
|
||||
const publicKeyString = bufferToBase64(exportedPublic);
|
||||
|
||||
return publicKeyString;
|
||||
};
|
||||
export const exportPrivateKey = async (key: CryptoKey) => {
|
||||
// Export Private Key
|
||||
const exportedPrivate = await window.crypto.subtle.exportKey("pkcs8", key);
|
||||
const privateKeyString = bufferToBase64(exportedPrivate);
|
||||
|
||||
return privateKeyString;
|
||||
};
|
||||
|
||||
/**
|
||||
* Converts a Base64 string back into a usable CryptoKey object
|
||||
* @param keyStr The Base64 string (without PEM headers)
|
||||
* @param type 'public' or 'private'
|
||||
*/
|
||||
export const stringToCryptoKey = async (keyStr: string, type: 'public' | 'private'): Promise<CryptoKey> => {
|
||||
// 1. Convert Base64 string to a Uint8Array (binary)
|
||||
const binaryString = window.atob(keyStr);
|
||||
const bytes = new Uint8Array(binaryString.length);
|
||||
for (let i = 0; i < binaryString.length; i++) {
|
||||
bytes[i] = binaryString.charCodeAt(i);
|
||||
}
|
||||
|
||||
// 2. Identify the format based on the key type
|
||||
// Public keys usually use 'spki', Private keys use 'pkcs8'
|
||||
const format = type === 'public' ? 'spki' : 'pkcs8';
|
||||
const usages: KeyUsage[] = type === 'public' ? ['verify'] : ['sign'];
|
||||
|
||||
// 3. Import the key
|
||||
return await window.crypto.subtle.importKey(
|
||||
format,
|
||||
bytes.buffer,
|
||||
{
|
||||
name: "RSASSA-PKCS1-v1_5",
|
||||
hash: "SHA-256",
|
||||
},
|
||||
true, // extractable (set to false if you want to lock it in memory)
|
||||
usages
|
||||
);
|
||||
};
|
||||
|
||||
export const savePrivateKeyToFile = (privateKeyStr: string, filename: string) => {
|
||||
// Optional: Wrap in PEM headers for standard formatting
|
||||
const pemHeader = "-----BEGIN PRIVATE KEY-----\n";
|
||||
const pemFooter = "\n-----END PRIVATE KEY-----";
|
||||
const fileContent = pemHeader + privateKeyStr + pemFooter;
|
||||
|
||||
const blob = new Blob([fileContent], { type: "text/plain" });
|
||||
const url = URL.createObjectURL(blob);
|
||||
|
||||
const link = document.createElement("a");
|
||||
link.href = url;
|
||||
link.download = filename;
|
||||
|
||||
document.body.appendChild(link);
|
||||
link.click();
|
||||
|
||||
// Cleanup
|
||||
document.body.removeChild(link);
|
||||
URL.revokeObjectURL(url);
|
||||
};
|
||||
|
||||
export const loadPrivateKeyFromFile = async (file: File): Promise<string> => {
|
||||
return new Promise((resolve, reject) => {
|
||||
const reader = new FileReader();
|
||||
|
||||
reader.onload = (e) => {
|
||||
const content = e.target?.result as string;
|
||||
|
||||
// Clean up the string by removing PEM headers and newlines
|
||||
const cleanKey = content
|
||||
.replace("-----BEGIN PRIVATE KEY-----", "")
|
||||
.replace("-----END PRIVATE KEY-----", "")
|
||||
.replace(/\s+/g, ""); // Removes all whitespace/newlines
|
||||
|
||||
resolve(cleanKey);
|
||||
};
|
||||
|
||||
reader.onerror = () => reject("Error reading file");
|
||||
reader.readAsText(file);
|
||||
});
|
||||
};
|
||||
@@ -1,36 +0,0 @@
|
||||
export interface PollProps {
|
||||
userid: string | undefined,
|
||||
activePollId: string,
|
||||
pollData: PollData,
|
||||
addOption: (name: string) => void,
|
||||
vote: (optionName: string) => void
|
||||
}
|
||||
|
||||
export interface PollListProps {
|
||||
userid: string | undefined,
|
||||
}
|
||||
|
||||
export interface PollData extends Record<string, SignedData<VoteData>[]> {
|
||||
}
|
||||
|
||||
export interface SignedData<T> {
|
||||
data: T,
|
||||
signature: string
|
||||
}
|
||||
|
||||
export interface VoteData {
|
||||
userid: string,
|
||||
timestamp: string
|
||||
}
|
||||
|
||||
export interface OptionData {
|
||||
userid: string,
|
||||
timestamp: string,
|
||||
optionName: string
|
||||
}
|
||||
|
||||
export interface UserData {
|
||||
userid: string,
|
||||
private_key: CryptoKey | undefined,
|
||||
public_key: CryptoKey | undefined
|
||||
}
|
||||
212
index.html
Normal file
212
index.html
Normal file
@@ -0,0 +1,212 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
|
||||
<title>Mesh Governance Tool</title>
|
||||
<script src="https://unpkg.com/peerjs@1.5.2/dist/peerjs.min.js"></script>
|
||||
<style>
|
||||
:root { --primary: #007AFF; --bg: #f2f2f7; --success: #34c759; --secondary: #8e8e93; }
|
||||
* { box-sizing: border-box; }
|
||||
body { font-family: -apple-system, sans-serif; margin: 0; background: var(--bg); height: 100vh; display: flex; flex-direction: column; overflow: hidden; }
|
||||
|
||||
/* Header & Peer List */
|
||||
.header { background: #fff; padding: 12px; border-bottom: 1px solid #d1d1d6; flex-shrink: 0; }
|
||||
.setup-row { display: flex; gap: 8px; margin-bottom: 10px; align-items: center; }
|
||||
.peer-list-container { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
|
||||
.peer-list-container::-webkit-scrollbar { display: none; }
|
||||
.peer-chip { background: #e9ecef; padding: 4px 10px; border-radius: 12px; font-size: 11px; white-space: nowrap; border: 1px solid #dee2e6; display: flex; align-items: center; gap: 5px; }
|
||||
.dot { width: 6px; height: 6px; background: var(--success); border-radius: 50%; }
|
||||
|
||||
/* Main Layout */
|
||||
.main-container { display: flex; flex: 1; overflow: hidden; }
|
||||
@media (max-width: 768px) { .main-container { flex-direction: column; } }
|
||||
.column { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: #fff; border-right: 1px solid #d1d1d6; }
|
||||
.scroll-area { flex: 1; overflow-y: auto; padding: 16px; -webkit-overflow-scrolling: touch; }
|
||||
|
||||
/* Components */
|
||||
.card { background: #f9f9f9; border-radius: 10px; padding: 12px; margin-bottom: 15px; border: 1px solid #e5e5ea; }
|
||||
input { border: 1px solid #c6c6c8; padding: 10px; border-radius: 8px; font-size: 16px; width: 100%; outline: none; }
|
||||
button { background: var(--primary); color: white; border: none; padding: 10px; border-radius: 8px; font-weight: 600; cursor: pointer; }
|
||||
|
||||
/* Poll UI */
|
||||
.poll-question { font-size: 20px; font-weight: 700; margin-bottom: 15px; color: var(--primary); }
|
||||
.option-item { display: flex; justify-content: space-between; align-items: center; background: white; padding: 12px; border-radius: 10px; margin-bottom: 8px; border: 1px solid #e5e5ea; }
|
||||
|
||||
/* Chat UI */
|
||||
#chat-messages { display: flex; flex-direction: column; gap: 8px; }
|
||||
.msg { padding: 8px 12px; border-radius: 14px; max-width: 85%; font-size: 14px; }
|
||||
.msg.sent { background: var(--primary); color: white; align-self: flex-end; }
|
||||
.msg.received { background: #e5e5ea; color: black; align-self: flex-start; }
|
||||
.msg-sender { font-size: 10px; font-weight: bold; opacity: 0.7; display: block; }
|
||||
.chat-input-bar { padding: 12px; background: #fff; border-top: 1px solid #d1d1d6; display: flex; gap: 8px; padding-bottom: calc(12px + env(safe-area-inset-bottom)); }
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<div class="header">
|
||||
<div class="setup-row">
|
||||
<span style="font-size: 13px;">Me: <strong id="my-id-display">...</strong></span>
|
||||
<div id="peer-list" class="peer-list-container">
|
||||
</div>
|
||||
</div>
|
||||
<div class="setup-row">
|
||||
<input type="text" id="nickname-input" placeholder="My Name" style="flex: 0.5;">
|
||||
<button onclick="joinAs(document.getElementById('nickname-input').value)" style="background: var(--secondary); padding: 8px 12px;">Set</button>
|
||||
<input type="text" id="peer-id-input" placeholder="Friend's Name" style="flex: 1;">
|
||||
<button onclick="connectToPeer()" style="padding: 8px 12px;">Connect</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="main-container">
|
||||
<div class="column">
|
||||
<div class="scroll-area">
|
||||
<div class="card">
|
||||
<input type="text" id="poll-title-input" placeholder="Question/Topic?">
|
||||
<button onclick="updateTitle()" style="width:100%; margin-top:8px;">Set Topic</button>
|
||||
</div>
|
||||
<div id="active-question" class="poll-question">Waiting for Topic...</div>
|
||||
<div style="display:flex; gap:8px; margin-bottom:15px;">
|
||||
<input type="text" id="new-option-text" placeholder="Add option...">
|
||||
<button onclick="addOption()">Add</button>
|
||||
</div>
|
||||
<div id="poll-container"></div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="column">
|
||||
<div class="scroll-area" id="chat-scroll">
|
||||
<div id="chat-messages"></div>
|
||||
</div>
|
||||
<div class="chat-input-bar">
|
||||
<input type="text" id="chat-input" placeholder="Discuss...">
|
||||
<button onclick="sendMessage()">Send</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
let pollData = { question: "Open Discussion", options: [] };
|
||||
let myName = "";
|
||||
let connections = [];
|
||||
let peer = null;
|
||||
|
||||
function joinAs(id) {
|
||||
if (peer) peer.destroy();
|
||||
peer = new Peer(id || undefined);
|
||||
peer.on('open', newId => {
|
||||
myName = newId;
|
||||
document.getElementById('my-id-display').innerText = newId;
|
||||
});
|
||||
peer.on('connection', conn => setupConnection(conn));
|
||||
}
|
||||
|
||||
function connectToPeer() {
|
||||
const target = document.getElementById('peer-id-input').value;
|
||||
if (target && target !== myName) {
|
||||
setupConnection(peer.connect(target));
|
||||
}
|
||||
document.getElementById('peer-id-input').value = "";
|
||||
}
|
||||
|
||||
function setupConnection(conn) {
|
||||
conn.on('open', () => {
|
||||
// Prevent duplicate connections
|
||||
if (!connections.find(c => c.peer === conn.peer)) {
|
||||
connections.push(conn);
|
||||
updatePeerUI();
|
||||
broadcast({ type: 'SYNC', payload: pollData });
|
||||
}
|
||||
});
|
||||
|
||||
conn.on('data', data => {
|
||||
if (data.type === 'SYNC') {
|
||||
pollData = data.payload;
|
||||
renderPoll();
|
||||
} else if (data.type === 'CHAT') {
|
||||
appendMessage(data.sender, data.payload, 'received');
|
||||
}
|
||||
});
|
||||
|
||||
conn.on('close', () => {
|
||||
connections = connections.filter(c => c.peer !== conn.peer);
|
||||
updatePeerUI();
|
||||
});
|
||||
}
|
||||
|
||||
function broadcast(data) {
|
||||
connections.forEach(c => { if (c.open) c.send(data); });
|
||||
}
|
||||
|
||||
function updatePeerUI() {
|
||||
const list = document.getElementById('peer-list');
|
||||
if (connections.length === 0) {
|
||||
list.innerHTML = '<span style="font-size:11px; color:#999;">No peers connected</span>';
|
||||
return;
|
||||
}
|
||||
list.innerHTML = connections.map(c => `
|
||||
<div class="peer-chip"><div class="dot"></div>${c.peer}</div>
|
||||
`).join('');
|
||||
}
|
||||
|
||||
// --- APP LOGIC ---
|
||||
function updateTitle() {
|
||||
const val = document.getElementById('poll-title-input').value;
|
||||
if (!val) return;
|
||||
pollData.question = val;
|
||||
renderPoll();
|
||||
broadcast({ type: 'SYNC', payload: pollData });
|
||||
}
|
||||
|
||||
function addOption() {
|
||||
const txt = document.getElementById('new-option-text').value;
|
||||
if (!txt) return;
|
||||
pollData.options.push({ text: txt, votes: 0 });
|
||||
document.getElementById('new-option-text').value = "";
|
||||
renderPoll();
|
||||
broadcast({ type: 'SYNC', payload: pollData });
|
||||
}
|
||||
|
||||
function vote(i) {
|
||||
pollData.options[i].votes++;
|
||||
renderPoll();
|
||||
broadcast({ type: 'SYNC', payload: pollData });
|
||||
}
|
||||
|
||||
function renderPoll() {
|
||||
document.getElementById('active-question').innerText = pollData.question;
|
||||
const container = document.getElementById('poll-container');
|
||||
container.innerHTML = pollData.options.map((opt, i) => `
|
||||
<div class="option-item">
|
||||
<span>${opt.text}</span>
|
||||
<div style="display:flex; align-items:center;">
|
||||
<span style="font-weight:bold; color:var(--primary); margin-right:12px; font-size:18px;">${opt.votes}</span>
|
||||
<button onclick="vote(${i})" style="background:var(--success); padding:5px 12px;">Vote</button>
|
||||
</div>
|
||||
</div>
|
||||
`).join('');
|
||||
}
|
||||
|
||||
function sendMessage() {
|
||||
const input = document.getElementById('chat-input');
|
||||
if (!input.value) return;
|
||||
broadcast({ type: 'CHAT', sender: myName, payload: input.value });
|
||||
appendMessage('You', input.value, 'sent');
|
||||
input.value = "";
|
||||
}
|
||||
|
||||
function appendMessage(sender, text, side) {
|
||||
const div = document.createElement('div');
|
||||
div.className = `msg ${side}`;
|
||||
div.innerHTML = `<span class="msg-sender">${sender}</span>${text}`;
|
||||
document.getElementById('chat-messages').appendChild(div);
|
||||
const scroll = document.getElementById('chat-scroll');
|
||||
scroll.scrollTop = scroll.scrollHeight;
|
||||
}
|
||||
|
||||
document.getElementById('chat-input').addEventListener('keypress', (e) => { if (e.key === 'Enter') sendMessage(); });
|
||||
|
||||
joinAs(null);
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
@@ -1,23 +0,0 @@
|
||||
// https://nuxt.com/docs/api/configuration/nuxt-config
|
||||
export default defineNuxtConfig({
|
||||
compatibilityDate: '2025-07-15',
|
||||
devtools: { enabled: true },
|
||||
vite: {
|
||||
optimizeDeps: {
|
||||
include: ['yjs', 'y-webrtc']
|
||||
}
|
||||
},
|
||||
// ... existing config
|
||||
nitro: {
|
||||
storage: {
|
||||
polls: {
|
||||
driver: 'fs',
|
||||
base: './.data/polls'
|
||||
},
|
||||
users: {
|
||||
driver: 'fs',
|
||||
base: './.data/users'
|
||||
}
|
||||
}
|
||||
}
|
||||
})
|
||||
10118
package-lock.json
generated
10118
package-lock.json
generated
File diff suppressed because it is too large
Load Diff
20
package.json
20
package.json
@@ -1,20 +0,0 @@
|
||||
{
|
||||
"name": "p2p-poll",
|
||||
"type": "module",
|
||||
"private": true,
|
||||
"scripts": {
|
||||
"build": "nuxt build",
|
||||
"dev": "PORT=4444 npx y-webrtc & nuxt dev",
|
||||
"generate": "nuxt generate",
|
||||
"preview": "nuxt preview",
|
||||
"postinstall": "nuxt prepare"
|
||||
},
|
||||
"dependencies": {
|
||||
"nuxt": "^4.1.3",
|
||||
"uuid": "^13.0.0",
|
||||
"vue": "^3.5.30",
|
||||
"vue-router": "^5.0.3",
|
||||
"y-webrtc": "^10.3.0",
|
||||
"yjs": "^13.6.30"
|
||||
}
|
||||
}
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 4.2 KiB |
@@ -1,2 +0,0 @@
|
||||
User-Agent: *
|
||||
Disallow:
|
||||
@@ -1,68 +0,0 @@
|
||||
import * as Y from 'yjs';
|
||||
// server/api/polls/[id].ts
|
||||
export default defineEventHandler(async (event) => {
|
||||
const method = event.node.req.method;
|
||||
const pollId = getRouterParam(event, 'id');
|
||||
|
||||
// We use Nitro's built-in storage.
|
||||
// 'polls' is the storage namespace.
|
||||
const storage = useStorage('polls');
|
||||
|
||||
if (!pollId) {
|
||||
throw createError({ statusCode: 400, statusMessage: 'Poll ID required' });
|
||||
}
|
||||
|
||||
// GET: Fetch the saved Yjs document state
|
||||
if (method === 'GET') {
|
||||
const data = await storage.getItem(`poll:${pollId}`);
|
||||
// Return the array of numbers (or null if it doesn't exist yet)
|
||||
return { update: data || null };
|
||||
}
|
||||
|
||||
// POST: Save a new Yjs document state
|
||||
if (method === 'POST') {
|
||||
const body = await readBody(event);
|
||||
|
||||
if (body.update && Array.isArray(body.update)) {
|
||||
// create a temp Y.Doc to encode the Data
|
||||
const tempDoc = new Y.Doc();
|
||||
Y.applyUpdate(tempDoc, new Uint8Array(body.update));
|
||||
const yMap = tempDoc.getMap('shared-poll');
|
||||
const pollData = yMap.toJSON();
|
||||
|
||||
// verify pollData
|
||||
for(var option in pollData){
|
||||
const votes = pollData[option] || [];
|
||||
var pubKeys: CryptoKey[] = [];
|
||||
|
||||
const verifyAllVotesForOption = async (votes: SignedData<VoteData>[]) => {
|
||||
console.log("verifying votes for option " + option,votes);
|
||||
// check last votes first. if there is something wrong, its likely in the last vote.
|
||||
for (let i = votes.length-1; i >= 0 ; i--) {
|
||||
const userStorage = useStorage('users');
|
||||
const votePubKeyString = await userStorage.getItem(`user:${votes[i]?.data.userid}`);
|
||||
//console.log("Using public key: "+votePubKeyString)
|
||||
const votePubKey = await stringToCryptoKey(String(votePubKeyString),'public')
|
||||
const isValid = await verifyChainedVote(votes, i,votePubKey);
|
||||
if(!isValid){
|
||||
console.error("Error! Invalid Vote at: " + i,votes)
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
};
|
||||
const verified = await verifyAllVotesForOption(votes);
|
||||
if(!verified){
|
||||
console.error("Failed to verify option: "+option)
|
||||
throw createError({ statusCode: 400, statusMessage: 'PollData contains unverifyable content!' });
|
||||
}
|
||||
}
|
||||
|
||||
// Save the binary update (sent as an array of numbers) to storage
|
||||
await storage.setItem(`poll:${pollId}`, body.update);
|
||||
return { success: true };
|
||||
}
|
||||
|
||||
throw createError({ statusCode: 400, statusMessage: 'Invalid update payload' });
|
||||
}
|
||||
});
|
||||
@@ -1,15 +0,0 @@
|
||||
// server/api/polls/index.get.ts
|
||||
export default defineEventHandler(async () => {
|
||||
const storage = useStorage('polls');
|
||||
|
||||
// Get all keys in the 'polls' namespace
|
||||
const allKeys = await storage.getKeys();
|
||||
|
||||
// Filter for our specific poll prefix and strip it for the UI
|
||||
// poll:my-id -> my-id
|
||||
const polls = allKeys
|
||||
.filter(key => key.startsWith('poll:'))
|
||||
.map(key => key.replace('poll:', ''));
|
||||
|
||||
return { polls };
|
||||
});
|
||||
@@ -1,41 +0,0 @@
|
||||
// server/api/users/[id].ts
|
||||
export default defineEventHandler(async (event) => {
|
||||
const method = event.node.req.method;
|
||||
const userId = getRouterParam(event, 'id');
|
||||
|
||||
// We use Nitro's built-in storage.
|
||||
// 'polls' is the storage namespace.
|
||||
const storage = useStorage('users');
|
||||
|
||||
if (!userId) {
|
||||
throw createError({ statusCode: 400, statusMessage: 'User ID required' });
|
||||
}
|
||||
|
||||
// GET: Fetch the saved Yjs document state
|
||||
if (method === 'GET') {
|
||||
const data = await storage.getItem(`user:${userId}`);
|
||||
// Return the array of numbers (or null if it doesn't exist yet)
|
||||
return { public_key: data };
|
||||
}
|
||||
|
||||
// POST: Save a new Yjs document state
|
||||
if (method === 'POST') {
|
||||
const body = await readBody(event);
|
||||
|
||||
if (body.public_key) {
|
||||
const data = await storage.getItem(`user:${userId}`);
|
||||
|
||||
if (data == undefined || data == null) {
|
||||
// Save the binary update (sent as an array of numbers) to storage
|
||||
await storage.setItem(`user:${userId}`, body.public_key);
|
||||
console.log("New User created: " + userId)
|
||||
console.log("Public Key: " + body.public_key);
|
||||
return { success: true };
|
||||
}
|
||||
|
||||
throw createError({ statusCode: 400, statusMessage: 'User already exists.' });
|
||||
}
|
||||
|
||||
throw createError({ statusCode: 400, statusMessage: 'Invalid update payload' });
|
||||
}
|
||||
});
|
||||
@@ -1,86 +0,0 @@
|
||||
import { SignedData, VoteData } from "./types";
|
||||
/**
|
||||
* Gets the WebCrypto API regardless of environment (Node vs Browser)
|
||||
*/
|
||||
const getCrypto = () => {
|
||||
return (globalThis as any).crypto;
|
||||
};
|
||||
|
||||
export const verifyVote = async (data: any, signatureStr: string, publicKey: CryptoKey) => {
|
||||
const encoder = new TextEncoder();
|
||||
const encodedData = encoder.encode(JSON.stringify(data));
|
||||
|
||||
// Convert Base64 back to Uint8Array
|
||||
const signature = Uint8Array.from(atob(signatureStr), c => c.charCodeAt(0));
|
||||
|
||||
return await getCrypto().subtle.verify(
|
||||
"RSASSA-PKCS1-v1_5",
|
||||
publicKey,
|
||||
signature,
|
||||
encodedData
|
||||
);
|
||||
};
|
||||
|
||||
/**
|
||||
* Verifies a specific vote within an array of votes by
|
||||
* reconstructing the "signed state" at that point in time.
|
||||
*/
|
||||
export const verifyChainedVote = async (
|
||||
voteData: SignedData<VoteData>[],
|
||||
index: number,
|
||||
pubKey: CryptoKey
|
||||
) => {
|
||||
const voteToVerify = voteData[index];
|
||||
console.log("Verifying vote: " + voteToVerify)
|
||||
if(voteToVerify) {
|
||||
// 1. Reconstruct the exact data state the user signed
|
||||
// We need the array exactly as it was when they pushed their vote
|
||||
const historicalState = voteData.slice(0, index + 1).map((v, i) => {
|
||||
if (i === index) {
|
||||
// For the current vote, the signature must be empty string
|
||||
// because it wasn't signed yet when passed to signVote
|
||||
return { ...v, signature: "" };
|
||||
}
|
||||
return v;
|
||||
});
|
||||
|
||||
try {
|
||||
// 3. Verify: Does this historicalState match the signature?
|
||||
return await verifyVote(historicalState, voteToVerify.signature, pubKey);
|
||||
} catch (err) {
|
||||
console.error("Verification failed")
|
||||
console.error(err);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
console.error("Vote is undefined or null");
|
||||
return false;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Converts a Base64 string back into a usable CryptoKey object
|
||||
* @param keyStr The Base64 string (without PEM headers)
|
||||
* @param type 'public' or 'private'
|
||||
*/
|
||||
export const stringToCryptoKey = async (keyStr: string, type: 'public' | 'private'): Promise<CryptoKey> => {
|
||||
// 1. Convert Base64 string to a Uint8Array (binary)
|
||||
const bytes = Buffer.from(keyStr, 'base64');
|
||||
|
||||
// 2. Identify the format based on the key type
|
||||
// Public keys usually use 'spki', Private keys use 'pkcs8'
|
||||
const format = type === 'public' ? 'spki' : 'pkcs8';
|
||||
const usages: KeyUsage[] = type === 'public' ? ['verify'] : ['sign'];
|
||||
|
||||
// 3. Import the key
|
||||
return await getCrypto().subtle.importKey(
|
||||
format,
|
||||
bytes,
|
||||
{
|
||||
name: "RSASSA-PKCS1-v1_5",
|
||||
hash: "SHA-256",
|
||||
},
|
||||
true, // extractable (set to false if you want to lock it in memory)
|
||||
usages
|
||||
);
|
||||
};
|
||||
@@ -1,36 +0,0 @@
|
||||
export interface PollProps {
|
||||
userid: string | undefined,
|
||||
activePollId: string,
|
||||
pollData: PollData,
|
||||
addOption: (name: string) => void,
|
||||
vote: (optionName: string) => void
|
||||
}
|
||||
|
||||
export interface PollListProps {
|
||||
userid: string | undefined,
|
||||
}
|
||||
|
||||
export interface PollData extends Record<string, SignedData<VoteData>[]> {
|
||||
}
|
||||
|
||||
export interface SignedData<T> {
|
||||
data: T,
|
||||
signature: string
|
||||
}
|
||||
|
||||
export interface VoteData {
|
||||
userid: string,
|
||||
timestamp: string
|
||||
}
|
||||
|
||||
export interface OptionData {
|
||||
userid: string,
|
||||
timestamp: string,
|
||||
optionName: string
|
||||
}
|
||||
|
||||
export interface UserData {
|
||||
userid: string,
|
||||
private_key: CryptoKey | undefined,
|
||||
public_key: CryptoKey | undefined
|
||||
}
|
||||
@@ -1,18 +0,0 @@
|
||||
{
|
||||
// https://nuxt.com/docs/guide/concepts/typescript
|
||||
"files": [],
|
||||
"references": [
|
||||
{
|
||||
"path": "./.nuxt/tsconfig.app.json"
|
||||
},
|
||||
{
|
||||
"path": "./.nuxt/tsconfig.server.json"
|
||||
},
|
||||
{
|
||||
"path": "./.nuxt/tsconfig.shared.json"
|
||||
},
|
||||
{
|
||||
"path": "./.nuxt/tsconfig.node.json"
|
||||
}
|
||||
]
|
||||
}
|
||||
Reference in New Issue
Block a user