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| 1 | +use alloy::{ |
| 2 | + eips::BlockNumberOrTag, |
| 3 | + network::{Ethereum, Network}, |
| 4 | + providers::{Provider, RootProvider}, |
| 5 | + rpc::types::Block, |
| 6 | +}; |
| 7 | +use anyhow::{Context, Result}; |
| 8 | +use clap::Parser; |
| 9 | +use futures::future::join_all; |
| 10 | +use timeboost_utils::types::logging::init_logging; |
| 11 | +use tracing::{error, info}; |
| 12 | + |
| 13 | +/// Max. Difference between l2 block heights for potential race conditions when heights are fetched |
| 14 | +/// from the sequencers |
| 15 | +const MAX_BLOCK_HEIGHT_DIFF: u64 = 2; |
| 16 | + |
| 17 | +#[derive(Parser, Debug)] |
| 18 | +struct Cli { |
| 19 | + /// Nitro node URLs use to check state for different sequencers to ensure consistency |
| 20 | + #[clap( |
| 21 | + long, |
| 22 | + default_value = "http://localhost:8547,http://localhost:8647", |
| 23 | + use_value_delimiter = true, |
| 24 | + value_delimiter = ',' |
| 25 | + )] |
| 26 | + nitro_urls: Vec<String>, |
| 27 | +} |
| 28 | + |
| 29 | +async fn connect_to_nitro<N: Network>(urls: &[String]) -> Result<Vec<RootProvider<N>>> { |
| 30 | + let mut p = Vec::new(); |
| 31 | + for url in urls { |
| 32 | + p.push(RootProvider::<N>::connect(url).await?) |
| 33 | + } |
| 34 | + Ok(p) |
| 35 | +} |
| 36 | + |
| 37 | +#[tokio::main] |
| 38 | +async fn main() -> Result<()> { |
| 39 | + init_logging(); |
| 40 | + let cli = Cli::parse(); |
| 41 | + |
| 42 | + let providers = connect_to_nitro::<Ethereum>(&cli.nitro_urls).await?; |
| 43 | + |
| 44 | + let block_numbers = join_all(providers.iter().map(|p| async { |
| 45 | + p.get_block_number() |
| 46 | + .await |
| 47 | + .context("provider request failed") |
| 48 | + })) |
| 49 | + .await |
| 50 | + .into_iter() |
| 51 | + .collect::<Result<Vec<u64>>>()?; |
| 52 | + |
| 53 | + let min = *block_numbers.iter().min().context("no blocks received")?; |
| 54 | + let max = *block_numbers.iter().max().context("no blocks received")?; |
| 55 | + let diff = max - min; |
| 56 | + |
| 57 | + // ensure the max - min is within MAX_BLOCK_HEIGHT_DIFF |
| 58 | + info!( |
| 59 | + max_height = %max, |
| 60 | + min_height = %min, |
| 61 | + height_diff = %diff, |
| 62 | + provider_count = %providers.len(), |
| 63 | + "block height verification" |
| 64 | + ); |
| 65 | + if diff > MAX_BLOCK_HEIGHT_DIFF { |
| 66 | + error!(%max, %min, %diff, max_diff = %MAX_BLOCK_HEIGHT_DIFF, "❌ block numbers too far apart"); |
| 67 | + anyhow::bail!( |
| 68 | + "block numbers too far apart (min: {}, max: {}, diff: {})", |
| 69 | + min, |
| 70 | + max, |
| 71 | + diff |
| 72 | + ); |
| 73 | + } |
| 74 | + |
| 75 | + // use minimum block in to avoid race conditions |
| 76 | + for i in 0..=min { |
| 77 | + let blocks = join_all(providers.iter().map(|p| async { |
| 78 | + p.get_block_by_number(BlockNumberOrTag::Number(i)) |
| 79 | + .await |
| 80 | + .context("provider request failed") |
| 81 | + })) |
| 82 | + .await |
| 83 | + .into_iter() |
| 84 | + .collect::<Result<Vec<Option<Block>>>>()?; |
| 85 | + let first_block = blocks |
| 86 | + .first() |
| 87 | + .and_then(|b| b.as_ref()) |
| 88 | + .ok_or_else(|| anyhow::anyhow!("no blocks received from any provider"))?; |
| 89 | + for (i, block) in blocks.iter().enumerate().skip(1) { |
| 90 | + let b = block |
| 91 | + .as_ref() |
| 92 | + .ok_or_else(|| anyhow::anyhow!("provider returned no block"))?; |
| 93 | + if b != first_block { |
| 94 | + error!( |
| 95 | + num = %b.number(), |
| 96 | + block_a = ?b, |
| 97 | + block_b = ?first_block, |
| 98 | + "❌ block mismatch between state" |
| 99 | + ); |
| 100 | + anyhow::bail!( |
| 101 | + "block mismatch between blocks: left: {:?}, right: {:?}", |
| 102 | + b, |
| 103 | + first_block |
| 104 | + ); |
| 105 | + } |
| 106 | + if i == blocks.len() - 1 { |
| 107 | + info!(num = %b.number(), block_hash = %b.hash(), txns = ?b.transactions, "✅ verified block"); |
| 108 | + } |
| 109 | + } |
| 110 | + } |
| 111 | + |
| 112 | + Ok(()) |
| 113 | +} |
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