mirror of
https://gitlab.com/pulsechaincom/lighthouse-pulse.git
synced 2025-01-15 08:28:20 +00:00
23a8f31f83
## Issue Addressed NA ## Proposed Changes Fixes most clippy warnings and ignores the rest of them, see issue #1388.
572 lines
20 KiB
Rust
572 lines
20 KiB
Rust
use crate::helpers::*;
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use crate::response_builder::ResponseBuilder;
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use crate::validator::get_state_for_epoch;
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use crate::{ApiError, ApiResult, UrlQuery};
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use beacon_chain::{
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observed_operations::ObservationOutcome, BeaconChain, BeaconChainTypes, StateSkipConfig,
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};
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use bus::BusReader;
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use futures::executor::block_on;
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use hyper::body::Bytes;
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use hyper::{Body, Request, Response};
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use rest_types::{
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BlockResponse, CanonicalHeadResponse, Committee, HeadBeaconBlock, StateResponse,
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ValidatorRequest, ValidatorResponse,
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};
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use std::io::Write;
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use std::sync::Arc;
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use slog::{error, Logger};
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use types::{
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AttesterSlashing, BeaconState, EthSpec, Hash256, ProposerSlashing, PublicKeyBytes,
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RelativeEpoch, SignedBeaconBlockHash, Slot,
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};
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/// HTTP handler to return a `BeaconBlock` at a given `root` or `slot`.
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pub fn get_head<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let chain_head = beacon_chain.head()?;
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let head = CanonicalHeadResponse {
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slot: chain_head.beacon_state.slot,
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block_root: chain_head.beacon_block_root,
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state_root: chain_head.beacon_state_root,
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finalized_slot: chain_head
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.beacon_state
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.finalized_checkpoint
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.epoch
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.start_slot(T::EthSpec::slots_per_epoch()),
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finalized_block_root: chain_head.beacon_state.finalized_checkpoint.root,
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justified_slot: chain_head
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.beacon_state
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.current_justified_checkpoint
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.epoch
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.start_slot(T::EthSpec::slots_per_epoch()),
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justified_block_root: chain_head.beacon_state.current_justified_checkpoint.root,
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previous_justified_slot: chain_head
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.beacon_state
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.previous_justified_checkpoint
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.epoch
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.start_slot(T::EthSpec::slots_per_epoch()),
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previous_justified_block_root: chain_head.beacon_state.previous_justified_checkpoint.root,
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};
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ResponseBuilder::new(&req)?.body(&head)
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}
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/// HTTP handler to return a list of head BeaconBlocks.
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pub fn get_heads<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let heads = beacon_chain
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.heads()
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.into_iter()
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.map(|(beacon_block_root, beacon_block_slot)| HeadBeaconBlock {
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beacon_block_root,
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beacon_block_slot,
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})
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.collect::<Vec<_>>();
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ResponseBuilder::new(&req)?.body(&heads)
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}
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/// HTTP handler to return a `BeaconBlock` at a given `root` or `slot`.
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pub fn get_block<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let query_params = ["root", "slot"];
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let (key, value) = UrlQuery::from_request(&req)?.first_of(&query_params)?;
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let block_root = match (key.as_ref(), value) {
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("slot", value) => {
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let target = parse_slot(&value)?;
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block_root_at_slot(&beacon_chain, target)?.ok_or_else(|| {
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ApiError::NotFound(format!(
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"Unable to find SignedBeaconBlock for slot {:?}",
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target
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))
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})?
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}
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("root", value) => parse_root(&value)?,
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_ => return Err(ApiError::ServerError("Unexpected query parameter".into())),
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};
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let block = beacon_chain.store.get_block(&block_root)?.ok_or_else(|| {
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ApiError::NotFound(format!(
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"Unable to find SignedBeaconBlock for root {:?}",
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block_root
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))
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})?;
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let response = BlockResponse {
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root: block_root,
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beacon_block: block,
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};
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ResponseBuilder::new(&req)?.body(&response)
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}
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/// HTTP handler to return a `SignedBeaconBlock` root at a given `slot`.
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pub fn get_block_root<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let slot_string = UrlQuery::from_request(&req)?.only_one("slot")?;
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let target = parse_slot(&slot_string)?;
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let root = block_root_at_slot(&beacon_chain, target)?.ok_or_else(|| {
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ApiError::NotFound(format!(
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"Unable to find SignedBeaconBlock for slot {:?}",
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target
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))
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})?;
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ResponseBuilder::new(&req)?.body(&root)
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}
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fn make_sse_response_chunk(new_head_hash: SignedBeaconBlockHash) -> std::io::Result<Bytes> {
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let mut buffer = Vec::new();
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{
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let mut sse_message = uhttp_sse::SseMessage::new(&mut buffer);
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let untyped_hash: Hash256 = new_head_hash.into();
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write!(sse_message.data()?, "{:?}", untyped_hash)?;
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}
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let bytes: Bytes = buffer.into();
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Ok(bytes)
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}
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pub fn stream_forks<T: BeaconChainTypes>(
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log: Logger,
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mut events: BusReader<SignedBeaconBlockHash>,
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) -> ApiResult {
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let (mut sender, body) = Body::channel();
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std::thread::spawn(move || {
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while let Ok(new_head_hash) = events.recv() {
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let chunk = match make_sse_response_chunk(new_head_hash) {
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Ok(chunk) => chunk,
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Err(e) => {
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error!(log, "Failed to make SSE chunk"; "error" => e.to_string());
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sender.abort();
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break;
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}
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};
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if let Err(bytes) = block_on(sender.send_data(chunk)) {
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error!(log, "Couldn't stream piece {:?}", bytes);
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}
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}
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});
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let response = Response::builder()
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.status(200)
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.header("Content-Type", "text/event-stream")
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.header("Connection", "Keep-Alive")
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.header("Cache-Control", "no-cache")
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.header("Access-Control-Allow-Origin", "*")
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.body(body)
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.map_err(|e| ApiError::ServerError(format!("Failed to build response: {:?}", e)))?;
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Ok(response)
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}
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/// HTTP handler to return the `Fork` of the current head.
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pub fn get_fork<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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ResponseBuilder::new(&req)?.body(&beacon_chain.head()?.beacon_state.fork)
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}
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/// HTTP handler to which accepts a query string of a list of validator pubkeys and maps it to a
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/// `ValidatorResponse`.
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///
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/// This method is limited to as many `pubkeys` that can fit in a URL. See `post_validators` for
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/// doing bulk requests.
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pub fn get_validators<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let query = UrlQuery::from_request(&req)?;
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let validator_pubkeys = query
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.all_of("validator_pubkeys")?
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.iter()
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.map(|validator_pubkey_str| parse_pubkey_bytes(validator_pubkey_str))
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.collect::<Result<Vec<_>, _>>()?;
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let state_root_opt = if let Some((_key, value)) = query.first_of_opt(&["state_root"]) {
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Some(parse_root(&value)?)
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} else {
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None
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};
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let validators =
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validator_responses_by_pubkey(beacon_chain, state_root_opt, validator_pubkeys)?;
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ResponseBuilder::new(&req)?.body(&validators)
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}
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/// HTTP handler to return all validators, each as a `ValidatorResponse`.
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pub fn get_all_validators<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let query = UrlQuery::from_request(&req)?;
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let state_root_opt = if let Some((_key, value)) = query.first_of_opt(&["state_root"]) {
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Some(parse_root(&value)?)
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} else {
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None
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};
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let mut state = get_state_from_root_opt(&beacon_chain, state_root_opt)?;
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state.update_pubkey_cache()?;
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let validators = state
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.validators
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.iter()
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.map(|validator| validator_response_by_pubkey(&state, validator.pubkey.clone()))
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.collect::<Result<Vec<_>, _>>()?;
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ResponseBuilder::new(&req)?.body(&validators)
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}
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/// HTTP handler to return all active validators, each as a `ValidatorResponse`.
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pub fn get_active_validators<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let query = UrlQuery::from_request(&req)?;
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let state_root_opt = if let Some((_key, value)) = query.first_of_opt(&["state_root"]) {
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Some(parse_root(&value)?)
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} else {
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None
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};
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let mut state = get_state_from_root_opt(&beacon_chain, state_root_opt)?;
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state.update_pubkey_cache()?;
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let validators = state
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.validators
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.iter()
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.filter(|validator| validator.is_active_at(state.current_epoch()))
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.map(|validator| validator_response_by_pubkey(&state, validator.pubkey.clone()))
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.collect::<Result<Vec<_>, _>>()?;
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ResponseBuilder::new(&req)?.body(&validators)
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}
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/// HTTP handler to which accepts a `ValidatorRequest` and returns a `ValidatorResponse` for
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/// each of the given `pubkeys`. When `state_root` is `None`, the canonical head is used.
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///
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/// This method allows for a basically unbounded list of `pubkeys`, where as the `get_validators`
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/// request is limited by the max number of pubkeys you can fit in a URL.
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pub async fn post_validators<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let response_builder = ResponseBuilder::new(&req);
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let body = req.into_body();
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let chunks = hyper::body::to_bytes(body)
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.await
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.map_err(|e| ApiError::ServerError(format!("Unable to get request body: {:?}", e)))?;
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serde_json::from_slice::<ValidatorRequest>(&chunks)
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.map_err(|e| {
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ApiError::BadRequest(format!(
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"Unable to parse JSON into ValidatorRequest: {:?}",
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e
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))
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})
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.and_then(|bulk_request| {
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validator_responses_by_pubkey(
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beacon_chain,
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bulk_request.state_root,
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bulk_request.pubkeys,
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)
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})
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.and_then(|validators| response_builder?.body(&validators))
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}
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/// Returns either the state given by `state_root_opt`, or the canonical head state if it is
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/// `None`.
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fn get_state_from_root_opt<T: BeaconChainTypes>(
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beacon_chain: &BeaconChain<T>,
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state_root_opt: Option<Hash256>,
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) -> Result<BeaconState<T::EthSpec>, ApiError> {
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if let Some(state_root) = state_root_opt {
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beacon_chain
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.get_state(&state_root, None)
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.map_err(|e| {
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ApiError::ServerError(format!(
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"Database error when reading state root {}: {:?}",
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state_root, e
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))
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})?
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.ok_or_else(|| ApiError::NotFound(format!("No state exists with root: {}", state_root)))
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} else {
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Ok(beacon_chain.head()?.beacon_state)
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}
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}
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/// Maps a vec of `validator_pubkey` to a vec of `ValidatorResponse`, using the state at the given
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/// `state_root`. If `state_root.is_none()`, uses the canonial head state.
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fn validator_responses_by_pubkey<T: BeaconChainTypes>(
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beacon_chain: Arc<BeaconChain<T>>,
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state_root_opt: Option<Hash256>,
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validator_pubkeys: Vec<PublicKeyBytes>,
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) -> Result<Vec<ValidatorResponse>, ApiError> {
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let mut state = get_state_from_root_opt(&beacon_chain, state_root_opt)?;
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state.update_pubkey_cache()?;
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validator_pubkeys
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.into_iter()
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.map(|validator_pubkey| validator_response_by_pubkey(&state, validator_pubkey))
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.collect::<Result<Vec<_>, ApiError>>()
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}
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/// Maps a `validator_pubkey` to a `ValidatorResponse`, using the given state.
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///
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/// The provided `state` must have a fully up-to-date pubkey cache.
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fn validator_response_by_pubkey<E: EthSpec>(
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state: &BeaconState<E>,
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validator_pubkey: PublicKeyBytes,
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) -> Result<ValidatorResponse, ApiError> {
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let validator_index_opt = state
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.get_validator_index(&validator_pubkey)
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.map_err(|e| ApiError::ServerError(format!("Unable to read pubkey cache: {:?}", e)))?;
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if let Some(validator_index) = validator_index_opt {
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let balance = state.balances.get(validator_index).ok_or_else(|| {
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ApiError::ServerError(format!("Invalid balances index: {:?}", validator_index))
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})?;
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let validator = state
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.validators
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.get(validator_index)
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.ok_or_else(|| {
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ApiError::ServerError(format!("Invalid validator index: {:?}", validator_index))
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})?
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.clone();
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Ok(ValidatorResponse {
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pubkey: validator_pubkey,
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validator_index: Some(validator_index),
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balance: Some(*balance),
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validator: Some(validator),
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})
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} else {
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Ok(ValidatorResponse {
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pubkey: validator_pubkey,
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validator_index: None,
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balance: None,
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validator: None,
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})
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}
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}
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/// HTTP handler
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pub fn get_committees<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let query = UrlQuery::from_request(&req)?;
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let epoch = query.epoch()?;
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let mut state = get_state_for_epoch(&beacon_chain, epoch, StateSkipConfig::WithoutStateRoots)?;
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let relative_epoch = RelativeEpoch::from_epoch(state.current_epoch(), epoch).map_err(|e| {
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ApiError::ServerError(format!("Failed to get state suitable for epoch: {:?}", e))
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})?;
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state
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.build_committee_cache(relative_epoch, &beacon_chain.spec)
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.map_err(|e| ApiError::ServerError(format!("Unable to build committee cache: {:?}", e)))?;
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let committees = state
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.get_beacon_committees_at_epoch(relative_epoch)
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.map_err(|e| ApiError::ServerError(format!("Unable to get all committees: {:?}", e)))?
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.into_iter()
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.map(|c| Committee {
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slot: c.slot,
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index: c.index,
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committee: c.committee.to_vec(),
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})
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.collect::<Vec<_>>();
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ResponseBuilder::new(&req)?.body(&committees)
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}
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/// HTTP handler to return a `BeaconState` at a given `root` or `slot`.
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///
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/// Will not return a state if the request slot is in the future. Will return states higher than
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/// the current head by skipping slots.
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pub fn get_state<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let head_state = beacon_chain.head()?.beacon_state;
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let (key, value) = match UrlQuery::from_request(&req) {
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Ok(query) => {
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// We have *some* parameters, just check them.
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let query_params = ["root", "slot"];
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query.first_of(&query_params)?
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}
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Err(ApiError::BadRequest(_)) => {
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// No parameters provided at all, use current slot.
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(String::from("slot"), head_state.slot.to_string())
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}
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Err(e) => {
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return Err(e);
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}
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};
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let (root, state): (Hash256, BeaconState<T::EthSpec>) = match (key.as_ref(), value) {
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("slot", value) => state_at_slot(&beacon_chain, parse_slot(&value)?)?,
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("root", value) => {
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let root = &parse_root(&value)?;
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let state = beacon_chain
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.store
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.get_state(root, None)?
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.ok_or_else(|| ApiError::NotFound(format!("No state for root: {:?}", root)))?;
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(*root, state)
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}
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_ => return Err(ApiError::ServerError("Unexpected query parameter".into())),
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};
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let response = StateResponse {
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root,
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beacon_state: state,
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};
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ResponseBuilder::new(&req)?.body(&response)
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}
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/// HTTP handler to return a `BeaconState` root at a given `slot`.
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///
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/// Will not return a state if the request slot is in the future. Will return states higher than
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/// the current head by skipping slots.
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pub fn get_state_root<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let slot_string = UrlQuery::from_request(&req)?.only_one("slot")?;
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let slot = parse_slot(&slot_string)?;
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let root = state_root_at_slot(&beacon_chain, slot, StateSkipConfig::WithStateRoots)?;
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ResponseBuilder::new(&req)?.body(&root)
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}
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|
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/// HTTP handler to return a `BeaconState` at the genesis block.
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///
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/// This is an undocumented convenience method used during testing. For production, simply do a
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/// state request at slot 0.
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pub fn get_genesis_state<T: BeaconChainTypes>(
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req: Request<Body>,
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beacon_chain: Arc<BeaconChain<T>>,
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) -> ApiResult {
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let (_root, state) = state_at_slot(&beacon_chain, Slot::new(0))?;
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|
|
ResponseBuilder::new(&req)?.body(&state)
|
|
}
|
|
|
|
/// Read the genesis time from the current beacon chain state.
|
|
pub fn get_genesis_time<T: BeaconChainTypes>(
|
|
req: Request<Body>,
|
|
beacon_chain: Arc<BeaconChain<T>>,
|
|
) -> ApiResult {
|
|
ResponseBuilder::new(&req)?.body(&beacon_chain.head_info()?.genesis_time)
|
|
}
|
|
|
|
/// Read the `genesis_validators_root` from the current beacon chain state.
|
|
pub fn get_genesis_validators_root<T: BeaconChainTypes>(
|
|
req: Request<Body>,
|
|
beacon_chain: Arc<BeaconChain<T>>,
|
|
) -> ApiResult {
|
|
ResponseBuilder::new(&req)?.body(&beacon_chain.head_info()?.genesis_validators_root)
|
|
}
|
|
|
|
pub async fn proposer_slashing<T: BeaconChainTypes>(
|
|
req: Request<Body>,
|
|
beacon_chain: Arc<BeaconChain<T>>,
|
|
) -> ApiResult {
|
|
let response_builder = ResponseBuilder::new(&req);
|
|
|
|
let body = req.into_body();
|
|
let chunks = hyper::body::to_bytes(body)
|
|
.await
|
|
.map_err(|e| ApiError::ServerError(format!("Unable to get request body: {:?}", e)))?;
|
|
|
|
serde_json::from_slice::<ProposerSlashing>(&chunks)
|
|
.map_err(|e| format!("Unable to parse JSON into ProposerSlashing: {:?}", e))
|
|
.and_then(move |proposer_slashing| {
|
|
if beacon_chain.eth1_chain.is_some() {
|
|
let obs_outcome = beacon_chain
|
|
.verify_proposer_slashing_for_gossip(proposer_slashing)
|
|
.map_err(|e| format!("Error while verifying proposer slashing: {:?}", e))?;
|
|
if let ObservationOutcome::New(verified_proposer_slashing) = obs_outcome {
|
|
beacon_chain.import_proposer_slashing(verified_proposer_slashing);
|
|
Ok(())
|
|
} else {
|
|
Err("Proposer slashing for that validator index already known".into())
|
|
}
|
|
} else {
|
|
Err("Cannot insert proposer slashing on node without Eth1 connection.".to_string())
|
|
}
|
|
})
|
|
.map_err(ApiError::BadRequest)
|
|
.and_then(|_| response_builder?.body(&true))
|
|
}
|
|
|
|
pub async fn attester_slashing<T: BeaconChainTypes>(
|
|
req: Request<Body>,
|
|
beacon_chain: Arc<BeaconChain<T>>,
|
|
) -> ApiResult {
|
|
let response_builder = ResponseBuilder::new(&req);
|
|
|
|
let body = req.into_body();
|
|
let chunks = hyper::body::to_bytes(body)
|
|
.await
|
|
.map_err(|e| ApiError::ServerError(format!("Unable to get request body: {:?}", e)))?;
|
|
|
|
serde_json::from_slice::<AttesterSlashing<T::EthSpec>>(&chunks)
|
|
.map_err(|e| {
|
|
ApiError::BadRequest(format!(
|
|
"Unable to parse JSON into AttesterSlashing: {:?}",
|
|
e
|
|
))
|
|
})
|
|
.and_then(move |attester_slashing| {
|
|
if beacon_chain.eth1_chain.is_some() {
|
|
beacon_chain
|
|
.verify_attester_slashing_for_gossip(attester_slashing)
|
|
.map_err(|e| format!("Error while verifying attester slashing: {:?}", e))
|
|
.and_then(|outcome| {
|
|
if let ObservationOutcome::New(verified_attester_slashing) = outcome {
|
|
beacon_chain
|
|
.import_attester_slashing(verified_attester_slashing)
|
|
.map_err(|e| {
|
|
format!("Error while importing attester slashing: {:?}", e)
|
|
})
|
|
} else {
|
|
Err("Attester slashing only covers already slashed indices".to_string())
|
|
}
|
|
})
|
|
.map_err(ApiError::BadRequest)
|
|
} else {
|
|
Err(ApiError::BadRequest(
|
|
"Cannot insert attester slashing on node without Eth1 connection.".to_string(),
|
|
))
|
|
}
|
|
})
|
|
.and_then(|_| response_builder?.body(&true))
|
|
}
|