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c2b07a2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | from blockchain import Blockchain
import gradio as gr
# Create a blockchain instance
blockchain = Blockchain()
# Define a function for displaying the entire blockchain
def display_blockchain():
if len(blockchain.chain) == 1:
return 'Blockchain has only the genesis block!'
blocks = []
for i, block in enumerate(blockchain.chain):
block_html = f'''
<div class="block">
<div class="block-header">
<h3>Block {block['index']}</h3>
<p>{block['timestamp']}</p>
</div>
<div class="block-body">
<p>Data: {block['data']}</p>
<p>Proof: {block['proof']}</p>
<p>Previous Hash: {block['previous_hash']}</p>
</div>
</div>
'''
blocks.append(block_html)
if i < len(blockchain.chain) - 1:
chain_html = f'''
<div class="chain-icon">
<i class="fas fa-link"></i>
</div>
'''
blocks.append(chain_html)
blockchain_html = ''.join(blocks)
return f'''
<html>
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta2/css/all.min.css">
<style>
.block {{
border: 1px solid white;
margin: 10px;
padding: 10px;
}}
.block-header {{
display: flex;
justify-content: space-between;
align-items: center;
}}
.block-body {{
margin-top: 10px;
}}
.chain-icon {{
display: flex;
justify-content: center;
align-items: center;
}}
</style>
</head>
<body>
{blockchain_html}
</body>
</html>
'''
# Define a function for adding data to the blockchain
def add_data(data):
previous_block = blockchain.get_previous_block()
previous_proof = previous_block['proof']
proof = blockchain.proof_of_work(previous_proof)
previous_hash = blockchain.hash(previous_block)
block = blockchain.create_block(proof, previous_hash, data)
message = f'Data "{data}" has been added to the blockchain!'
block_html = f'''
<div class="block">
<div class="block-header">
<h3>Block {block['index']}</h3>
<p>{block['timestamp']}</p>
</div>
<div class="block-body">
<p>Data: {block['data']}</p>
<p>Proof: {block['proof']}</p>
<p>Previous Hash: {block['previous_hash']}</p>
</div>
</div>
'''
return message, block_html
# Create a Gradio interface for adding data to the blockchain
add_data_interface = gr.Interface(
fn=add_data,
inputs=gr.components.Textbox(label='Enter data to add to the blockchain:'),
outputs=[
gr.components.Textbox(label='Message'),
gr.components.HTML(label='Blockchain')
],
title='Add Data to Blockchain',
allow_flagging="never",
description='Add data to the blockchain and view the block.'
)
# Create a Gradio interface for displaying the entire blockchain
display_blockchain_interface = gr.Interface(
fn=display_blockchain,
inputs=None,
outputs=gr.components.HTML(label='Blockchain'),
title='Display Blockchain',
allow_flagging="never",
api_name='display_chain',
description='View the entire blockchain.'
)
# Combine the interfaces using the TabbedInterface
demo = gr.TabbedInterface(
[add_data_interface, display_blockchain_interface],
tab_names=['Add Data', 'Display Blockchain'],
title='Blockchain Explorer',
)
demo.launch()
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