a30fb90e5a
✅ Log Migration - Moved repository logs to /var/log/aitbc/repository-logs - Moved production logs to /var/log/aitbc/production - Updated all code references to use /var/log/aitbc - Updated systemd services to use system logs - Removed logs from git tracking - Updated .gitignore for log files - Created proper system log structure - Set proper permissions for system logs ✅ System Compliance - All logs now in /var/log/aitbc (FHS compliant) - No log files in repository - Proper system-wide log location - Centralized log management ✅ Service Updates - Production services use /var/log/aitbc/production - SystemD services use /var/log/aitbc - All code references updated to system paths - Services restart and test successfully 🚀 AITBC logging now follows proper system standards!
323 lines
11 KiB
Python
Executable File
323 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Real Blockchain with Mining and Multi-Chain Support
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"""
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import os
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import sys
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import json
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import time
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import hashlib
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import logging
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from pathlib import Path
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from datetime import datetime
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from typing import Dict, List, Optional
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import threading
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# Production logging
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s [%(levelname)s] %(name)s: %(message)s',
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handlers=[
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logging.FileHandler('/var/log/aitbc/production/blockchain/mining.log'),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger(__name__)
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class ProofOfWork:
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"""Real Proof of Work mining algorithm"""
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def __init__(self, difficulty: int = 4):
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self.difficulty = difficulty
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self.target = "0" * difficulty
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def mine(self, block_data: dict) -> tuple:
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"""Mine a block with real proof of work"""
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nonce = 0
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start_time = time.time()
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while True:
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# Create block hash with nonce
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content = f"{json.dumps(block_data, sort_keys=True)}{nonce}"
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block_hash = hashlib.sha256(content.encode()).hexdigest()
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# Check if hash meets difficulty
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if block_hash.startswith(self.target):
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mining_time = time.time() - start_time
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logger.info(f"Block mined! Nonce: {nonce}, Hash: {block_hash[:16]}..., Time: {mining_time:.2f}s")
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return block_hash, nonce, mining_time
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nonce += 1
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# Prevent infinite loop
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if nonce > 10000000:
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raise Exception("Mining failed - nonce too high")
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class MultiChainManager:
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"""Multi-chain blockchain manager"""
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def __init__(self):
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self.chains = {}
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self.miners = {}
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self.node_id = os.getenv('NODE_ID', 'aitbc')
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self.data_dir = Path(f'/var/lib/aitbc/data/blockchain/{self.node_id}')
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self.data_dir.mkdir(parents=True, exist_ok=True)
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# Initialize multiple chains
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self._initialize_chains()
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logger.info(f"Multi-chain manager initialized for node: {self.node_id}")
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def _initialize_chains(self):
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"""Initialize multiple blockchain chains"""
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chains_config = [
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{
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'name': 'aitbc-main',
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'difficulty': 4,
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'block_reward': 50.0,
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'description': 'Main AITBC blockchain'
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},
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{
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'name': 'aitbc-gpu',
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'difficulty': 3,
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'block_reward': 25.0,
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'description': 'GPU computing blockchain'
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}
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]
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for chain_config in chains_config:
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chain_name = chain_config['name']
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self.chains[chain_name] = {
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'name': chain_name,
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'blocks': [],
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'difficulty': chain_config['difficulty'],
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'block_reward': chain_config['block_reward'],
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'description': chain_config['description'],
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'pending_transactions': [],
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'balances': {},
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'mining_stats': {
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'blocks_mined': 0,
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'total_mining_time': 0,
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'average_mining_time': 0
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}
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}
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# Create miner for this chain
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self.miners[chain_name] = ProofOfWork(chain_config['difficulty'])
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# Load existing chain data
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self._load_chain(chain_name)
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# Create genesis block if empty
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if not self.chains[chain_name]['blocks']:
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self._create_genesis_block(chain_name)
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logger.info(f"Chain {chain_name} initialized with {len(self.chains[chain_name]['blocks'])} blocks")
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def _load_chain(self, chain_name: str):
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"""Load existing chain data"""
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chain_file = self.data_dir / f'{chain_name}.json'
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try:
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if chain_file.exists():
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with open(chain_file, 'r') as f:
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data = json.load(f)
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self.chains[chain_name] = data
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logger.info(f"Loaded chain {chain_name} with {len(data.get('blocks', []))} blocks")
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except Exception as e:
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logger.error(f"Failed to load chain {chain_name}: {e}")
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def _save_chain(self, chain_name: str):
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"""Save chain data"""
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try:
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chain_file = self.data_dir / f'{chain_name}.json'
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with open(chain_file, 'w') as f:
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json.dump(self.chains[chain_name], f, indent=2)
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logger.debug(f"Chain {chain_name} saved")
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except Exception as e:
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logger.error(f"Failed to save chain {chain_name}: {e}")
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def _create_genesis_block(self, chain_name: str):
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"""Create genesis block for chain"""
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chain = self.chains[chain_name]
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genesis_data = {
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'index': 0,
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'timestamp': time.time(),
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'data': {
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'type': 'genesis',
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'chain': chain_name,
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'node_id': self.node_id,
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'description': chain['description'],
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'block_reward': chain['block_reward']
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},
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'previous_hash': '0',
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'nonce': 0
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}
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# Mine genesis block
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block_hash, nonce, mining_time = self.miners[chain_name].mine(genesis_data)
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genesis_block = {
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'index': 0,
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'timestamp': genesis_data['timestamp'],
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'data': genesis_data['data'],
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'previous_hash': '0',
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'hash': block_hash,
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'nonce': nonce,
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'mining_time': mining_time,
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'miner': self.node_id
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}
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chain['blocks'].append(genesis_block)
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chain['mining_stats']['blocks_mined'] = 1
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chain['mining_stats']['total_mining_time'] = mining_time
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chain['mining_stats']['average_mining_time'] = mining_time
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# Initialize miner balance with block reward
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chain['balances'][f'miner_{self.node_id}'] = chain['block_reward']
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self._save_chain(chain_name)
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logger.info(f"Genesis block created for {chain_name} - Reward: {chain['block_reward']} AITBC")
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def mine_block(self, chain_name: str, transactions: List[dict] = None) -> dict:
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"""Mine a new block on specified chain"""
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if chain_name not in self.chains:
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raise Exception(f"Chain {chain_name} not found")
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chain = self.chains[chain_name]
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# Prepare block data
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block_data = {
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'index': len(chain['blocks']),
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'timestamp': time.time(),
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'data': {
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'transactions': transactions or [],
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'chain': chain_name,
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'node_id': self.node_id
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},
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'previous_hash': chain['blocks'][-1]['hash'] if chain['blocks'] else '0'
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}
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# Mine the block
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block_hash, nonce, mining_time = self.miners[chain_name].mine(block_data)
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# Create block
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new_block = {
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'index': block_data['index'],
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'timestamp': block_data['timestamp'],
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'data': block_data['data'],
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'previous_hash': block_data['previous_hash'],
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'hash': block_hash,
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'nonce': nonce,
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'mining_time': mining_time,
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'miner': self.node_id,
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'transactions_count': len(transactions or [])
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}
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# Add to chain
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chain['blocks'].append(new_block)
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# Update mining stats
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chain['mining_stats']['blocks_mined'] += 1
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chain['mining_stats']['total_mining_time'] += mining_time
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chain['mining_stats']['average_mining_time'] = (
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chain['mining_stats']['total_mining_time'] / chain['mining_stats']['blocks_mined']
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)
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# Reward miner
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miner_address = f'miner_{self.node_id}'
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if miner_address not in chain['balances']:
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chain['balances'][miner_address] = 0
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chain['balances'][miner_address] += chain['block_reward']
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# Process transactions
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for tx in transactions or []:
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self._process_transaction(chain, tx)
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self._save_chain(chain_name)
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logger.info(f"Block mined on {chain_name} - Reward: {chain['block_reward']} AITBC")
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return new_block
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def _process_transaction(self, chain: dict, transaction: dict):
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"""Process a transaction"""
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from_addr = transaction.get('from_address')
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to_addr = transaction.get('to_address')
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amount = transaction.get('amount', 0)
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# Initialize balances
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if from_addr not in chain['balances']:
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chain['balances'][from_addr] = 1000.0 # Initial balance
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if to_addr not in chain['balances']:
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chain['balances'][to_addr] = 0.0
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# Process transaction
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if chain['balances'][from_addr] >= amount:
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chain['balances'][from_addr] -= amount
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chain['balances'][to_addr] += amount
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logger.info(f"Transaction processed: {amount} AITBC from {from_addr} to {to_addr}")
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def get_chain_info(self, chain_name: str) -> dict:
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"""Get chain information"""
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if chain_name not in self.chains:
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return {'error': f'Chain {chain_name} not found'}
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chain = self.chains[chain_name]
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return {
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'chain_name': chain_name,
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'blocks': len(chain['blocks']),
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'difficulty': chain['difficulty'],
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'block_reward': chain['block_reward'],
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'description': chain['description'],
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'mining_stats': chain['mining_stats'],
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'total_addresses': len(chain['balances']),
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'total_balance': sum(chain['balances'].values()),
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'latest_block': chain['blocks'][-1] if chain['blocks'] else None
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}
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def get_all_chains_info(self) -> dict:
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"""Get information about all chains"""
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return {
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'node_id': self.node_id,
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'total_chains': len(self.chains),
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'chains': {name: self.get_chain_info(name) for name in self.chains.keys()}
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}
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if __name__ == '__main__':
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# Initialize multi-chain manager
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manager = MultiChainManager()
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# Mine blocks on all chains
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for chain_name in manager.chains.keys():
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try:
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# Create sample transactions
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transactions = [
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{
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'from_address': f'user_{manager.node_id}',
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'to_address': f'user_other',
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'amount': 10.0,
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'data': {'type': 'payment'}
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}
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]
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# Mine block
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block = manager.mine_block(chain_name, transactions)
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print(f"Mined block on {chain_name}: {block['hash'][:16]}...")
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except Exception as e:
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logger.error(f"Failed to mine block on {chain_name}: {e}")
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# Print chain information
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info = manager.get_all_chains_info()
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print(f"Multi-chain info: {json.dumps(info, indent=2)}")
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