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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| //! Configuration for the Hilo Driver. | ||
| use kona_derive::traits::ChainProvider; | ||
| use kona_driver::PipelineCursor; | ||
| use op_alloy_genesis::RollupConfig; | ||
| use op_alloy_protocol::{BatchValidationProvider, BlockInfo, L2BlockInfo}; | ||
| use serde::{Deserialize, Serialize}; | ||
| use std::sync::Arc; | ||
| use url::Url; | ||
|
|
||
| use hilo_providers_alloy::{ | ||
| AlloyChainProvider, AlloyL2ChainProvider, BeaconClient, OnlineBeaconClient, OnlineBlobProvider, | ||
| OnlineBlobProviderWithFallback, | ||
| }; | ||
|
|
||
| /// An error thrown by a [Config] operation. | ||
| #[derive(Debug, thiserror::Error)] | ||
| pub enum ConfigError { | ||
| /// An error thrown by the beacon client. | ||
| #[error("beacon client error: {0}")] | ||
| Beacon(String), | ||
| /// An L2 chain provider error. | ||
| #[error("L2 chain provider error: {0}")] | ||
| L2ChainProvider(String), | ||
| /// An L1 chain provider error. | ||
| #[error("L1 chain provider error: {0}")] | ||
| ChainProvider(String), | ||
| } | ||
|
|
||
| /// The global node configuration. | ||
| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)] | ||
| pub struct Config { | ||
| /// The L2 Chain ID. | ||
| pub l2_chain_id: u64, | ||
| /// The L1 chain RPC URL | ||
| pub l1_rpc_url: Url, | ||
| /// The base chain beacon client RPC URL | ||
| pub l1_beacon_url: Url, | ||
| /// An optional blob archiver URL used in the fallback provider. | ||
| pub blob_archiver_url: Option<Url>, | ||
| /// The L2 chain RPC URL | ||
| pub l2_rpc_url: Url, | ||
| /// The L2 engine API URL | ||
| pub l2_engine_url: Url, | ||
| /// The rollup config | ||
| pub rollup_config: RollupConfig, | ||
| /// The hilo-node RPC server | ||
| pub rpc_url: Option<Url>, | ||
| /// The cache size for in-memory providers. | ||
| pub cache_size: usize, | ||
| } | ||
|
|
||
| impl Config { | ||
| /// Construct an [OnlineBlobProviderWithFallback] from the [Config]. | ||
| pub async fn blob_provider( | ||
| &self, | ||
| ) -> Result<OnlineBlobProviderWithFallback<OnlineBeaconClient, OnlineBeaconClient>, ConfigError> | ||
| { | ||
| let beacon_client = OnlineBeaconClient::new_http(String::from(self.l1_beacon_url.clone())); | ||
| let genesis = Some(self.rollup_config.genesis.l1.number); | ||
| let slot_interval = beacon_client | ||
| .config_spec() | ||
| .await | ||
| .map_err(|e| ConfigError::Beacon(e.to_string()))? | ||
| .data | ||
| .seconds_per_slot; | ||
| let blob = OnlineBlobProvider::new(beacon_client, genesis, Some(slot_interval)); | ||
| Ok(OnlineBlobProviderWithFallback::new(blob, None)) | ||
| } | ||
|
|
||
| /// Returns an [AlloyChainProvider] from the configured provider endpoints. | ||
| pub fn l1_chain_provider(&self) -> AlloyChainProvider { | ||
| AlloyChainProvider::new_http(self.l1_rpc_url.clone()) | ||
| } | ||
|
|
||
| /// Returns the L2 provider. | ||
| pub fn l2_provider(&self) -> AlloyL2ChainProvider { | ||
| AlloyL2ChainProvider::new_http( | ||
| self.l2_rpc_url.clone(), | ||
| Arc::new(self.rollup_config.clone()), | ||
| ) | ||
| } | ||
|
|
||
| /// Returns the safe head tip. | ||
| /// The chain tip includes the safe L1 block info and the L2 block info. | ||
| pub async fn safe_tip(&self) -> Result<(BlockInfo, L2BlockInfo), ConfigError> { | ||
| let mut l2_provider = self.l2_provider(); | ||
| let latest_block_number = l2_provider | ||
| .latest_block_number() | ||
| .await | ||
| .map_err(|e| ConfigError::L2ChainProvider(e.to_string()))?; | ||
| let l2_block_info = l2_provider | ||
| .l2_block_info_by_number(latest_block_number) | ||
| .await | ||
| .map_err(|e| ConfigError::L2ChainProvider(e.to_string()))?; | ||
|
|
||
| let mut l1_provider = self.l1_chain_provider(); | ||
| let l1_block_info = l1_provider | ||
| .block_info_by_number(l2_block_info.l1_origin.number) | ||
| .await | ||
| .map_err(|e| ConfigError::ChainProvider(e.to_string()))?; | ||
|
|
||
| Ok((l1_block_info, l2_block_info)) | ||
| } | ||
|
|
||
| /// Constructs a [PipelineCursor] from the origin. | ||
| pub async fn tip_cursor(&self) -> Result<PipelineCursor, ConfigError> { | ||
| // Load the safe head info. | ||
| let (origin, safe_head_info) = self.safe_tip().await?; | ||
|
|
||
| // Calculate the channel timeout | ||
| let channel_timeout = | ||
| self.rollup_config.channel_timeout(safe_head_info.block_info.timestamp); | ||
| let mut l1_origin_number = origin.number.saturating_sub(channel_timeout); | ||
| if l1_origin_number < self.rollup_config.genesis.l1.number { | ||
| l1_origin_number = self.rollup_config.genesis.l1.number; | ||
| } | ||
|
|
||
| // Create the pipeline cursor from the origin | ||
| let mut l1_provider = self.l1_chain_provider(); | ||
| let l1_origin = l1_provider | ||
| .block_info_by_number(l1_origin_number) | ||
| .await | ||
| .map_err(|e| ConfigError::ChainProvider(e.to_string()))?; | ||
| Ok(PipelineCursor::new(channel_timeout, l1_origin)) | ||
| } | ||
| } |
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