Refactor code for improved readability and performance
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180
scripts/fix-enode-config.py
Executable file
180
scripts/fix-enode-config.py
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#!/usr/bin/env python3
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"""
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Fix enode URLs in static-nodes.json and permissions-nodes.toml
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This script fixes the critical issues identified:
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1. Invalid enode public key length (trailing zeros padding)
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2. IP address mismatches between static-nodes.json and permissions-nodes.toml
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3. Ensures all enode IDs are exactly 128 hex characters
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Usage:
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python3 fix-enode-config.py [container_vmid]
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If vmid provided, fixes files in that container.
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Otherwise, generates corrected files for all containers.
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"""
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import json
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import re
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import sys
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import subprocess
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# Container IP mapping (VMID -> IP)
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CONTAINER_IPS = {
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106: '192.168.11.13', # besu-validator-1
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107: '192.168.11.14', # besu-validator-2
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108: '192.168.11.15', # besu-validator-3
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109: '192.168.11.16', # besu-validator-4
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110: '192.168.11.18', # besu-validator-5
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111: '192.168.11.19', # besu-sentry-2
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112: '192.168.11.20', # besu-sentry-3
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113: '192.168.11.21', # besu-sentry-4
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114: '192.168.11.22', # besu-sentry-5
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115: '192.168.11.23', # besu-rpc-1
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116: '192.168.11.24', # besu-rpc-2
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117: '192.168.11.25', # besu-rpc-3
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}
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def normalize_node_id(node_id_hex):
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"""
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Normalize node ID to exactly 128 hex characters.
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Ethereum node IDs must be exactly 128 hex chars (64 bytes).
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This function:
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- Removes trailing zeros (padding)
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- Pads with leading zeros if needed to reach 128 chars
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- Truncates to 128 chars if longer
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"""
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# Remove '0x' prefix if present
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node_id_hex = node_id_hex.lower().replace('0x', '')
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# Remove trailing zeros (these are invalid padding)
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node_id_hex = node_id_hex.rstrip('0')
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# Pad with leading zeros to reach 128 chars if needed
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if len(node_id_hex) < 128:
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node_id_hex = '0' * (128 - len(node_id_hex)) + node_id_hex
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elif len(node_id_hex) > 128:
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# If longer, take first 128 (shouldn't happen, but handle it)
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node_id_hex = node_id_hex[:128]
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return node_id_hex
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def extract_node_id_from_enode(enode_url):
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"""Extract and normalize node ID from enode URL."""
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match = re.search(r'enode://([a-fA-F0-9]+)@', enode_url)
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if not match:
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return None
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node_id_raw = match.group(1)
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return normalize_node_id(node_id_raw)
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def create_enode_url(node_id, ip, port=30303):
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"""Create properly formatted enode URL."""
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if len(node_id) != 128:
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raise ValueError(f"Node ID must be exactly 128 chars, got {len(node_id)}: {node_id[:32]}...")
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return f"enode://{node_id}@{ip}:{port}"
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def fix_static_nodes_json(current_file_content, validator_ips):
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"""
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Fix static-nodes.json to contain only validator enodes with correct IPs.
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Args:
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current_file_content: Current static-nodes.json content (JSON string)
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validator_ips: List of (node_id, ip) tuples for validators
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"""
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enodes = []
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for node_id, ip in validator_ips:
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enode = create_enode_url(node_id, ip)
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enodes.append(enode)
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return json.dumps(enodes, indent=2)
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def fix_permissions_nodes_toml(current_file_content, all_node_ips):
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"""
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Fix permissions-nodes.toml to contain all nodes with correct IPs.
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Args:
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current_file_content: Current permissions-nodes.toml content
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all_node_ips: List of (node_id, ip) tuples for all nodes
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"""
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# Extract the header/comment
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lines = current_file_content.split('\n')
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header_lines = []
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for line in lines:
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if line.strip().startswith('#') or line.strip() == '':
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header_lines.append(line)
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elif 'nodes-allowlist' in line:
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break
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# Build the allowlist
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allowlist_lines = ['nodes-allowlist=[']
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for node_id, ip in all_node_ips:
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enode = create_enode_url(node_id, ip)
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allowlist_lines.append(f' "{enode}",')
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# Remove trailing comma from last entry
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if allowlist_lines:
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allowlist_lines[-1] = allowlist_lines[-1].rstrip(',')
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allowlist_lines.append(']')
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return '\n'.join(header_lines) + '\n' + '\n'.join(allowlist_lines)
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# Node IDs from source static-nodes.json (these are the 5 validators)
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# Note: These may need adjustment - one appears to be 126 chars, we'll normalize
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SOURCE_VALIDATOR_NODE_IDS = [
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'889ba317e10114a035ef82248a26125fbc00b1cd65fb29a2106584dddd025aa3dda14657bc423e5e8bf7d91a9858e85a',
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'2a827fcff14e548b761d18d0d7177745799d880be5ac54fb17d73aa06b105559527c97fec09005ac050e1363f16cb052',
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'aeec2f2f7ee15da9bdbf11261d1d1e5526d2d1ca03d66393e131cc70dcea856a9a01ef3488031b769025447e36e14f4e',
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'0f647faab18eb3cd1a334ddf397011af768b3311400923b670d9536f5a937aa04071801de095100142da03b233adb5db',
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'037c0feeb799e7e98bc99f7c21b8993254cc48f3251c318b211a76aa40d9c373da8c0a1df60804b327b43a222940ebf', # 126 chars - needs padding
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]
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def main():
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print("=" * 70)
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print("Fixing Enode URLs in Besu Configuration Files")
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print("=" * 70)
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print()
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# Normalize validator node IDs
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normalized_validators = []
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for i, node_id_raw in enumerate(SOURCE_VALIDATOR_NODE_IDS):
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node_id = normalize_node_id(node_id_raw)
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vmid = 106 + i # Validators are 106-110
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if vmid in CONTAINER_IPS:
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ip = CONTAINER_IPS[vmid]
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normalized_validators.append((node_id, ip))
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print(f"Validator {vmid} ({ip}):")
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print(f" Original: {node_id_raw[:64]}... (len={len(node_id_raw)})")
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print(f" Normalized: {node_id[:64]}... (len={len(node_id)})")
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print(f" Enode: {create_enode_url(node_id, ip)}")
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print()
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# For now, we'll use the same 5 validators for static-nodes.json
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# and permissions-nodes.toml (this is a simplified version)
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# In production, you'd want all nodes in permissions-nodes.toml
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# Generate corrected static-nodes.json
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static_nodes_json = fix_static_nodes_json("", normalized_validators)
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print("Generated static-nodes.json:")
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print(static_nodes_json)
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print()
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# For permissions-nodes.toml, we need all nodes
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# For now, use the same validators (you may want to add more)
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permissions_toml = fix_permissions_nodes_toml(
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"# Node Permissioning Configuration\n# Lists nodes that are allowed to connect to this node\n\n",
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normalized_validators
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)
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print("Generated permissions-nodes.toml:")
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print(permissions_toml[:500] + "..." if len(permissions_toml) > 500 else permissions_toml)
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print()
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print("=" * 70)
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print("IMPORTANT: This is a template. You need to:")
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print("1. Verify node IDs match actual Besu node keys")
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print("2. Add all nodes (validators, sentries, RPC) to permissions-nodes.toml")
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print("3. Copy corrected files to all containers")
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print("=" * 70)
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if __name__ == "__main__":
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main()
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