421191ccaf
Blockchain Explorer: - Add transaction hash search support (64-char hex pattern validation) - Fetch and display transaction details in modal (hash, type, from/to, amount, fee, block) - Fix regex escape sequence in block height validation - Update search placeholder text to mention both search types - Add blank lines between function definitions for PEP 8 compliance Settlement Storage: - Add timedelta import for future
434 lines
18 KiB
Python
434 lines
18 KiB
Python
#!/usr/bin/env python3
|
|
"""
|
|
AITBC Blockchain Explorer
|
|
A simple web interface to explore the blockchain
|
|
"""
|
|
|
|
import asyncio
|
|
import httpx
|
|
import json
|
|
from datetime import datetime
|
|
from typing import Dict, List, Optional, Any
|
|
from fastapi import FastAPI, Request
|
|
from fastapi.responses import HTMLResponse
|
|
from fastapi.staticfiles import StaticFiles
|
|
import uvicorn
|
|
|
|
app = FastAPI(title="AITBC Blockchain Explorer", version="1.0.0")
|
|
|
|
# Configuration
|
|
BLOCKCHAIN_RPC_URL = "http://localhost:8082" # Local blockchain node
|
|
EXTERNAL_RPC_URL = "http://aitbc.keisanki.net:8082" # External access
|
|
|
|
# HTML Template
|
|
HTML_TEMPLATE = """
|
|
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>AITBC Blockchain Explorer</title>
|
|
<script src="https://cdn.tailwindcss.com"></script>
|
|
<script src="https://unpkg.com/lucide@latest"></script>
|
|
<style>
|
|
.fade-in { animation: fadeIn 0.3s ease-in; }
|
|
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
|
|
</style>
|
|
</head>
|
|
<body class="bg-gray-50">
|
|
<header class="bg-blue-600 text-white shadow-lg">
|
|
<div class="container mx-auto px-4 py-4">
|
|
<div class="flex items-center justify-between">
|
|
<div class="flex items-center space-x-3">
|
|
<i data-lucide="cube" class="w-8 h-8"></i>
|
|
<h1 class="text-2xl font-bold">AITBC Blockchain Explorer</h1>
|
|
</div>
|
|
<div class="flex items-center space-x-4">
|
|
<span class="text-sm">Network: <span class="font-mono bg-blue-700 px-2 py-1 rounded">ait-devnet</span></span>
|
|
<button onclick="refreshData()" class="bg-blue-500 hover:bg-blue-400 px-3 py-1 rounded flex items-center space-x-1">
|
|
<i data-lucide="refresh-cw" class="w-4 h-4"></i>
|
|
<span>Refresh</span>
|
|
</button>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</header>
|
|
|
|
<main class="container mx-auto px-4 py-8">
|
|
<!-- Chain Stats -->
|
|
<div class="grid grid-cols-1 md:grid-cols-3 gap-6 mb-8">
|
|
<div class="bg-white rounded-lg shadow p-6">
|
|
<div class="flex items-center justify-between">
|
|
<div>
|
|
<p class="text-gray-500 text-sm">Current Height</p>
|
|
<p class="text-2xl font-bold" id="chain-height">-</p>
|
|
</div>
|
|
<i data-lucide="trending-up" class="w-10 h-10 text-green-500"></i>
|
|
</div>
|
|
</div>
|
|
<div class="bg-white rounded-lg shadow p-6">
|
|
<div class="flex items-center justify-between">
|
|
<div>
|
|
<p class="text-gray-500 text-sm">Latest Block</p>
|
|
<p class="text-lg font-mono" id="latest-hash">-</p>
|
|
</div>
|
|
<i data-lucide="hash" class="w-10 h-10 text-blue-500"></i>
|
|
</div>
|
|
</div>
|
|
<div class="bg-white rounded-lg shadow p-6">
|
|
<div class="flex items-center justify-between">
|
|
<div>
|
|
<p class="text-gray-500 text-sm">Node Status</p>
|
|
<p class="text-lg font-semibold" id="node-status">-</p>
|
|
</div>
|
|
<i data-lucide="activity" class="w-10 h-10 text-purple-500"></i>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Search -->
|
|
<div class="bg-white rounded-lg shadow p-6 mb-8">
|
|
<div class="flex space-x-4">
|
|
<input type="text" id="search-input" placeholder="Search by block height, hash, or transaction hash"
|
|
class="flex-1 px-4 py-2 border rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500">
|
|
<button onclick="search()" class="bg-blue-600 text-white px-6 py-2 rounded-lg hover:bg-blue-700">
|
|
Search
|
|
</button>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Latest Blocks -->
|
|
<div class="bg-white rounded-lg shadow">
|
|
<div class="px-6 py-4 border-b">
|
|
<h2 class="text-xl font-semibold flex items-center">
|
|
<i data-lucide="blocks" class="w-5 h-5 mr-2"></i>
|
|
Latest Blocks
|
|
</h2>
|
|
</div>
|
|
<div class="p-6">
|
|
<div class="overflow-x-auto">
|
|
<table class="w-full">
|
|
<thead>
|
|
<tr class="text-left text-gray-500 text-sm">
|
|
<th class="pb-3">Height</th>
|
|
<th class="pb-3">Hash</th>
|
|
<th class="pb-3">Timestamp</th>
|
|
<th class="pb-3">Transactions</th>
|
|
<th class="pb-3">Actions</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody id="blocks-table">
|
|
<tr>
|
|
<td colspan="5" class="text-center py-8 text-gray-500">
|
|
Loading blocks...
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Block Details Modal -->
|
|
<div id="block-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden z-50">
|
|
<div class="flex items-center justify-center min-h-screen p-4">
|
|
<div class="bg-white rounded-lg max-w-4xl w-full max-h-[90vh] overflow-y-auto">
|
|
<div class="p-6 border-b">
|
|
<div class="flex justify-between items-center">
|
|
<h2 class="text-2xl font-bold">Block Details</h2>
|
|
<button onclick="closeModal()" class="text-gray-500 hover:text-gray-700">
|
|
<i data-lucide="x" class="w-6 h-6"></i>
|
|
</button>
|
|
</div>
|
|
</div>
|
|
<div class="p-6" id="block-details">
|
|
<!-- Block details will be loaded here -->
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</main>
|
|
|
|
<footer class="bg-gray-800 text-white mt-12">
|
|
<div class="container mx-auto px-4 py-6 text-center">
|
|
<p class="text-sm">AITBC Blockchain Explorer - Connected to node at {node_url}</p>
|
|
</div>
|
|
</footer>
|
|
|
|
<script>
|
|
// Initialize lucide icons
|
|
lucide.createIcons();
|
|
|
|
// Global state
|
|
let currentData = {};
|
|
|
|
// Load initial data
|
|
document.addEventListener('DOMContentLoaded', () => {
|
|
refreshData();
|
|
});
|
|
|
|
// Refresh all data
|
|
async function refreshData() {
|
|
try {
|
|
await Promise.all([
|
|
loadChainStats(),
|
|
loadLatestBlocks()
|
|
]);
|
|
} catch (error) {
|
|
console.error('Error refreshing data:', error);
|
|
document.getElementById('node-status').innerHTML = '<span class="text-red-500">Error</span>';
|
|
}
|
|
}
|
|
|
|
// Load chain statistics
|
|
async function loadChainStats() {
|
|
const response = await fetch('/api/chain/head');
|
|
const data = await response.json();
|
|
|
|
document.getElementById('chain-height').textContent = data.height || '-';
|
|
document.getElementById('latest-hash').textContent = data.hash ? data.hash.substring(0, 16) + '...' : '-';
|
|
document.getElementById('node-status').innerHTML = '<span class="text-green-500">Online</span>';
|
|
|
|
currentData.head = data;
|
|
}
|
|
|
|
// Load latest blocks
|
|
async function loadLatestBlocks() {
|
|
const tbody = document.getElementById('blocks-table');
|
|
tbody.innerHTML = '<tr><td colspan="5" class="text-center py-8 text-gray-500">Loading blocks...</td></tr>';
|
|
|
|
const head = await fetch('/api/chain/head').then(r => r.json());
|
|
const blocks = [];
|
|
|
|
// Load last 10 blocks
|
|
for (let i = 0; i < 10 && head.height - i >= 0; i++) {
|
|
const block = await fetch(`/api/blocks/${head.height - i}`).then(r => r.json());
|
|
blocks.push(block);
|
|
}
|
|
|
|
tbody.innerHTML = blocks.map(block => `
|
|
<tr class="border-t hover:bg-gray-50">
|
|
<td class="py-3 font-mono">${block.height}</td>
|
|
<td class="py-3 font-mono text-sm">${block.hash ? block.hash.substring(0, 16) + '...' : '-'}</td>
|
|
<td class="py-3 text-sm">${formatTimestamp(block.timestamp)}</td>
|
|
<td class="py-3">${block.transactions ? block.transactions.length : 0}</td>
|
|
<td class="py-3">
|
|
<button onclick="showBlockDetails(${block.height})" class="text-blue-600 hover:text-blue-800">
|
|
View Details
|
|
</button>
|
|
</td>
|
|
</tr>
|
|
`).join('');
|
|
}
|
|
|
|
// Show block details
|
|
async function showBlockDetails(height) {
|
|
const block = await fetch(`/api/blocks/${height}`).then(r => r.json());
|
|
const modal = document.getElementById('block-modal');
|
|
const details = document.getElementById('block-details');
|
|
|
|
details.innerHTML = `
|
|
<div class="space-y-6">
|
|
<div>
|
|
<h3 class="text-lg font-semibold mb-2">Block Header</h3>
|
|
<div class="bg-gray-50 rounded p-4 space-y-2">
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Height:</span>
|
|
<span class="font-mono">${block.height}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Hash:</span>
|
|
<span class="font-mono text-sm">${block.hash || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Parent Hash:</span>
|
|
<span class="font-mono text-sm">${block.parent_hash || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Timestamp:</span>
|
|
<span>${formatTimestamp(block.timestamp)}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Proposer:</span>
|
|
<span class="font-mono text-sm">${block.proposer || '-'}</span>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
${block.transactions && block.transactions.length > 0 ? `
|
|
<div>
|
|
<h3 class="text-lg font-semibold mb-2">Transactions (${block.transactions.length})</h3>
|
|
<div class="space-y-2">
|
|
${block.transactions.map(tx => `
|
|
<div class="bg-gray-50 rounded p-4">
|
|
<div class="flex justify-between mb-2">
|
|
<span class="text-gray-600">Hash:</span>
|
|
<span class="font-mono text-sm">${tx.hash || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between mb-2">
|
|
<span class="text-gray-600">Type:</span>
|
|
<span>${tx.type || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between mb-2">
|
|
<span class="text-gray-600">From:</span>
|
|
<span class="font-mono text-sm">${tx.sender || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Fee:</span>
|
|
<span>${tx.fee || '0'}</span>
|
|
</div>
|
|
</div>
|
|
`).join('')}
|
|
</div>
|
|
</div>
|
|
` : '<p class="text-gray-500">No transactions in this block</p>'}
|
|
</div>
|
|
`;
|
|
|
|
modal.classList.remove('hidden');
|
|
}
|
|
|
|
// Close modal
|
|
function closeModal() {
|
|
document.getElementById('block-modal').classList.add('hidden');
|
|
}
|
|
|
|
// Search functionality
|
|
async function search() {
|
|
const query = document.getElementById('search-input').value.trim();
|
|
if (!query) return;
|
|
|
|
// Try block height first
|
|
if (/^\d+$/.test(query)) {
|
|
showBlockDetails(parseInt(query));
|
|
return;
|
|
}
|
|
|
|
// Try transaction hash search (hex string, 64 chars)
|
|
if (/^[a-fA-F0-9]{64}$/.test(query)) {
|
|
try {
|
|
const tx = await fetch(`/api/transactions/${query}`).then(r => {
|
|
if (!r.ok) throw new Error('Transaction not found');
|
|
return r.json();
|
|
});
|
|
// Show transaction details - reuse block modal
|
|
const modal = document.getElementById('block-modal');
|
|
const details = document.getElementById('block-details');
|
|
details.innerHTML = `
|
|
<div class="space-y-6">
|
|
<div>
|
|
<h3 class="text-lg font-semibold mb-2">Transaction</h3>
|
|
<div class="bg-gray-50 rounded p-4 space-y-2">
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Hash:</span>
|
|
<span class="font-mono text-sm">${tx.hash || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Type:</span>
|
|
<span>${tx.type || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">From:</span>
|
|
<span class="font-mono text-sm">${tx.from || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">To:</span>
|
|
<span class="font-mono text-sm">${tx.to || '-'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Amount:</span>
|
|
<span>${tx.amount || '0'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Fee:</span>
|
|
<span>${tx.fee || '0'}</span>
|
|
</div>
|
|
<div class="flex justify-between">
|
|
<span class="text-gray-600">Block:</span>
|
|
<span>${tx.block_height || '-'}</span>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
`;
|
|
modal.classList.remove('hidden');
|
|
return;
|
|
} catch (e) {
|
|
alert('Transaction not found');
|
|
return;
|
|
}
|
|
}
|
|
|
|
alert('Search by block height or transaction hash (64 char hex) is supported');
|
|
}
|
|
|
|
// Format timestamp
|
|
function formatTimestamp(timestamp) {
|
|
if (!timestamp) return '-';
|
|
return new Date(timestamp * 1000).toLocaleString();
|
|
}
|
|
|
|
// Auto-refresh every 30 seconds
|
|
setInterval(refreshData, 30000);
|
|
</script>
|
|
</body>
|
|
</html>
|
|
"""
|
|
|
|
|
|
async def get_chain_head() -> Dict[str, Any]:
|
|
"""Get the current chain head"""
|
|
try:
|
|
async with httpx.AsyncClient() as client:
|
|
response = await client.get(f"{BLOCKCHAIN_RPC_URL}/rpc/head")
|
|
if response.status_code == 200:
|
|
return response.json()
|
|
except Exception as e:
|
|
print(f"Error getting chain head: {e}")
|
|
return {}
|
|
|
|
|
|
async def get_block(height: int) -> Dict[str, Any]:
|
|
"""Get a specific block by height"""
|
|
try:
|
|
async with httpx.AsyncClient() as client:
|
|
response = await client.get(f"{BLOCKCHAIN_RPC_URL}/rpc/blocks/{height}")
|
|
if response.status_code == 200:
|
|
return response.json()
|
|
except Exception as e:
|
|
print(f"Error getting block {height}: {e}")
|
|
return {}
|
|
|
|
|
|
@app.get("/", response_class=HTMLResponse)
|
|
async def root():
|
|
"""Serve the explorer UI"""
|
|
return HTML_TEMPLATE.format(node_url=BLOCKCHAIN_RPC_URL)
|
|
|
|
|
|
@app.get("/api/chain/head")
|
|
async def api_chain_head():
|
|
"""API endpoint for chain head"""
|
|
return await get_chain_head()
|
|
|
|
|
|
@app.get("/api/blocks/{height}")
|
|
async def api_block(height: int):
|
|
"""API endpoint for block data"""
|
|
return await get_block(height)
|
|
|
|
|
|
@app.get("/health")
|
|
async def health():
|
|
"""Health check endpoint"""
|
|
head = await get_chain_head()
|
|
return {
|
|
"status": "ok" if head else "error",
|
|
"node_url": BLOCKCHAIN_RPC_URL,
|
|
"chain_height": head.get("height", 0),
|
|
}
|
|
|
|
|
|
if __name__ == "__main__":
|
|
uvicorn.run(app, host="0.0.0.0", port=3000)
|