add BlockChainContextService, on_get_block_hash

* apply diffs

* fix tests

binaries/cuprated/src/rpc/handler.rs

@@ -3,6 +3,7 @@
 use std::task::{Context, Poll};
 
 use anyhow::Error;
+use cuprate_consensus::BlockChainContextService;
 use futures::future::BoxFuture;
 use monero_serai::block::Block;
 use tower::Service;
@@ -102,6 +103,9 @@ pub struct CupratedRpcHandler {
     /// Read handle to the blockchain database.
     pub blockchain_read: BlockchainReadHandle,
 
+    /// Handle to the blockchain context service.
+    pub blockchain_context: BlockChainContextService,
+
     /// Handle to the blockchain manager.
     pub blockchain_manager: BlockchainManagerHandle,
 
@@ -117,6 +121,7 @@ impl CupratedRpcHandler {
     pub const fn new(
         restricted: bool,
         blockchain_read: BlockchainReadHandle,
+        blockchain_context: BlockChainContextService,
         blockchain_manager: BlockchainManagerHandle,
         txpool_read: TxpoolReadHandle,
         txpool_manager: std::convert::Infallible,
@@ -124,6 +129,7 @@ impl CupratedRpcHandler {
         Self {
             restricted,
             blockchain_read,
+            blockchain_context,
             blockchain_manager,
             txpool_read,
             txpool_manager,

binaries/cuprated/src/rpc/json.rs

@@ -38,7 +38,11 @@ use cuprate_rpc_types::{
     CORE_RPC_VERSION,
 };
 
-use crate::rpc::{helper, request::blockchain, CupratedRpcHandler};
+use crate::rpc::{
+    helper,
+    request::{blockchain, blockchain_context, blockchain_manager},
+    CupratedRpcHandler,
+};
 
 /// Map a [`JsonRpcRequest`] to the function that will lead to a [`JsonRpcResponse`].
 pub(super) async fn map_request(
@@ -115,7 +119,8 @@ async fn on_get_block_hash(
     request: OnGetBlockHashRequest,
 ) -> Result<OnGetBlockHashResponse, Error> {
     let [height] = request.block_height;
-    let hash = blockchain::block_hash(&mut state.blockchain_read, height, todo!()).await?;
+    let hash = blockchain::block_hash(&mut state.blockchain_read, height, todo!("access to chain"))
+        .await?;
     let block_hash = hex::encode(hash);
 
     Ok(OnGetBlockHashResponse { block_hash })
@@ -126,21 +131,14 @@ async fn submit_block(
     mut state: CupratedRpcHandler,
     request: SubmitBlockRequest,
 ) -> Result<SubmitBlockResponse, Error> {
+    // Parse hex into block.
     let [blob] = request.block_blob;
-
-    let limit = todo!(); //blockchain::cumulative_block_weight_limit(&mut state.blockchain_read).await?;
-
-    // if blob.len() > limit + BLOCK_SIZE_SANITY_LEEWAY {
-    //     return Err(anyhow!("Block size is too big, rejecting block"));
-    // }
-
     let bytes = hex::decode(blob)?;
     let block = Block::read(&mut bytes.as_slice())?;
+    let block_id = hex::encode(block.hash());
 
-    // <https://github.com/monero-project/monero/blob/master/src/cryptonote_core/cryptonote_core.cpp#L1540>
-    let block_id = todo!("submit block to DB");
-    todo!("relay to P2P");
-    todo!("send to txpool");
+    // Attempt to relay the block.
+    blockchain_manager::relay_block(&mut state.blockchain_manager, block).await?;
 
     Ok(SubmitBlockResponse {
         base: ResponseBase::ok(),
@@ -383,7 +381,7 @@ async fn hard_fork_info(
     Ok(HardForkInfoResponse {
         base: AccessResponseBase::ok(),
         earliest_height: todo!(),
-        enabled: hard_fork.is_current(),
+        enabled: todo!("hard_fork.is_latest() is not always correct"),
         state: todo!(),
         threshold: todo!(),
         version: hard_fork.as_u8(),

binaries/cuprated/src/rpc/request/address_book.rs

@@ -12,7 +12,7 @@ use cuprate_p2p_core::{
 };
 
 /// [`AddressBookRequest::PeerlistSize`]
-pub(super) async fn peerlist_size<Z: NetworkZone>(
+pub(crate) async fn peerlist_size<Z: NetworkZone>(
     address_book: &mut impl AddressBook<Z>,
 ) -> Result<(u64, u64), Error> {
     let AddressBookResponse::PeerlistSize { white, grey } = address_book
@@ -30,7 +30,7 @@ pub(super) async fn peerlist_size<Z: NetworkZone>(
 }
 
 /// [`AddressBookRequest::ConnectionCount`]
-pub(super) async fn connection_count<Z: NetworkZone>(
+pub(crate) async fn connection_count<Z: NetworkZone>(
     address_book: &mut impl AddressBook<Z>,
 ) -> Result<(u64, u64), Error> {
     let AddressBookResponse::ConnectionCount { incoming, outgoing } = address_book
@@ -48,7 +48,7 @@ pub(super) async fn connection_count<Z: NetworkZone>(
 }
 
 /// [`AddressBookRequest::SetBan`]
-pub(super) async fn set_ban<Z: NetworkZone>(
+pub(crate) async fn set_ban<Z: NetworkZone>(
     address_book: &mut impl AddressBook<Z>,
     peer: cuprate_p2p_core::ban::SetBan<Z::Addr>,
 ) -> Result<(), Error> {
@@ -67,7 +67,7 @@ pub(super) async fn set_ban<Z: NetworkZone>(
 }
 
 /// [`AddressBookRequest::GetBan`]
-pub(super) async fn get_ban<Z: NetworkZone>(
+pub(crate) async fn get_ban<Z: NetworkZone>(
     address_book: &mut impl AddressBook<Z>,
     peer: Z::Addr,
 ) -> Result<Option<std::time::Instant>, Error> {
@@ -86,7 +86,7 @@ pub(super) async fn get_ban<Z: NetworkZone>(
 }
 
 /// [`AddressBookRequest::GetBans`]
-pub(super) async fn get_bans<Z: NetworkZone>(
+pub(crate) async fn get_bans<Z: NetworkZone>(
     address_book: &mut impl AddressBook<Z>,
 ) -> Result<(), Error> {
     let AddressBookResponse::GetBans(bans) = address_book

binaries/cuprated/src/rpc/request/blockchain_context.rs

@@ -12,9 +12,8 @@ use cuprate_consensus::context::{
 use cuprate_types::{FeeEstimate, HardFork, HardForkInfo};
 
 /// [`BlockChainContextRequest::Context`].
-pub(super) async fn context(
+pub(crate) async fn context(
     service: &mut BlockChainContextService,
-    height: u64,
 ) -> Result<BlockChainContext, Error> {
     let BlockChainContextResponse::Context(context) = service
         .ready()
@@ -31,7 +30,7 @@ pub(super) async fn context(
 }
 
 /// [`BlockChainContextRequest::HardForkInfo`].
-pub(super) async fn hard_fork_info(
+pub(crate) async fn hard_fork_info(
     service: &mut BlockChainContextService,
     hard_fork: HardFork,
 ) -> Result<HardForkInfo, Error> {
@@ -50,7 +49,7 @@ pub(super) async fn hard_fork_info(
 }
 
 /// [`BlockChainContextRequest::FeeEstimate`].
-pub(super) async fn fee_estimate(
+pub(crate) async fn fee_estimate(
     service: &mut BlockChainContextService,
     grace_blocks: u64,
 ) -> Result<FeeEstimate, Error> {

binaries/cuprated/src/rpc/request/blockchain_manager.rs

@@ -11,7 +11,7 @@ use crate::rpc::handler::{
 };
 
 /// [`BlockchainManagerRequest::PopBlocks`]
-pub(super) async fn pop_blocks(
+pub(crate) async fn pop_blocks(
     blockchain_manager: &mut BlockchainManagerHandle,
     amount: u64,
 ) -> Result<u64, Error> {
@@ -30,7 +30,7 @@ pub(super) async fn pop_blocks(
 }
 
 /// [`BlockchainManagerRequest::Prune`]
-pub(super) async fn prune(blockchain_manager: &mut BlockchainManagerHandle) -> Result<(), Error> {
+pub(crate) async fn prune(blockchain_manager: &mut BlockchainManagerHandle) -> Result<(), Error> {
     let BlockchainManagerResponse::Ok = blockchain_manager
         .ready()
         .await?
@@ -44,7 +44,7 @@ pub(super) async fn prune(blockchain_manager: &mut BlockchainManagerHandle) -> R
 }
 
 /// [`BlockchainManagerRequest::Pruned`]
-pub(super) async fn pruned(
+pub(crate) async fn pruned(
     blockchain_manager: &mut BlockchainManagerHandle,
 ) -> Result<bool, Error> {
     let BlockchainManagerResponse::Pruned(pruned) = blockchain_manager
@@ -60,7 +60,7 @@ pub(super) async fn pruned(
 }
 
 /// [`BlockchainManagerRequest::RelayBlock`]
-pub(super) async fn relay_block(
+pub(crate) async fn relay_block(
     blockchain_manager: &mut BlockchainManagerHandle,
     block: Block,
 ) -> Result<(), Error> {
@@ -77,7 +77,7 @@ pub(super) async fn relay_block(
 }
 
 /// [`BlockchainManagerRequest::Syncing`]
-pub(super) async fn syncing(
+pub(crate) async fn syncing(
     blockchain_manager: &mut BlockchainManagerHandle,
 ) -> Result<bool, Error> {
     let BlockchainManagerResponse::Syncing(syncing) = blockchain_manager
@@ -93,7 +93,7 @@ pub(super) async fn syncing(
 }
 
 /// [`BlockchainManagerRequest::Synced`]
-pub(super) async fn synced(
+pub(crate) async fn synced(
     blockchain_manager: &mut BlockchainManagerHandle,
 ) -> Result<bool, Error> {
     let BlockchainManagerResponse::Synced(syncing) = blockchain_manager
@@ -109,7 +109,7 @@ pub(super) async fn synced(
 }
 
 /// [`BlockchainManagerRequest::Target`]
-pub(super) async fn target(
+pub(crate) async fn target(
     blockchain_manager: &mut BlockchainManagerHandle,
 ) -> Result<std::time::Duration, Error> {
     let BlockchainManagerResponse::Target(target) = blockchain_manager
@@ -125,7 +125,7 @@ pub(super) async fn target(
 }
 
 /// [`BlockchainManagerRequest::TargetHeight`]
-pub(super) async fn target_height(
+pub(crate) async fn target_height(
     blockchain_manager: &mut BlockchainManagerHandle,
 ) -> Result<u64, Error> {
     let BlockchainManagerResponse::TargetHeight { height } = blockchain_manager

binaries/cuprated/src/rpc/request/txpool.rs

@@ -15,7 +15,7 @@ use cuprate_txpool::{
 };
 
 /// [`TxpoolReadRequest::Backlog`]
-pub(super) async fn backlog(txpool_read: &mut TxpoolReadHandle) -> Result<Vec<TxEntry>, Error> {
+pub(crate) async fn backlog(txpool_read: &mut TxpoolReadHandle) -> Result<Vec<TxEntry>, Error> {
     let TxpoolReadResponse::Backlog(tx_entries) = txpool_read
         .ready()
         .await
@@ -31,7 +31,7 @@ pub(super) async fn backlog(txpool_read: &mut TxpoolReadHandle) -> Result<Vec<Tx
 }
 
 /// [`TxpoolReadRequest::Size`]
-pub(super) async fn size(txpool_read: &mut TxpoolReadHandle) -> Result<u64, Error> {
+pub(crate) async fn size(txpool_read: &mut TxpoolReadHandle) -> Result<u64, Error> {
     let TxpoolReadResponse::Size(size) = txpool_read
         .ready()
         .await
@@ -48,7 +48,7 @@ pub(super) async fn size(txpool_read: &mut TxpoolReadHandle) -> Result<u64, Erro
 
 /// TODO
 #[expect(clippy::needless_pass_by_ref_mut, reason = "TODO: remove after impl")]
-pub(super) async fn flush(
+pub(crate) async fn flush(
     txpool_read: &mut TxpoolReadHandle,
     tx_hashes: Vec<[u8; 32]>,
 ) -> Result<(), Error> {

rpc/types/src/json.rs

@@ -820,7 +820,7 @@ define_request_and_response! {
     HardForkInfo,
 
     #[doc = serde_doc_test!(
-        HARD_FORK_INFO => HardForkInfo {
+        HARD_FORK_INFO_REQUEST => HardForkInfoRequest {
             version: 16,
         }
     )]
@@ -836,9 +836,9 @@ define_request_and_response! {
             enabled: true,
             state: 0,
             threshold: 0,
-            version: 3,
+            version: 16,
             votes: 10080,
-            voting: 3,
+            voting: 16,
             window: 10080
         }
     )]

types/src/hard_fork.rs

@@ -73,13 +73,13 @@ pub enum HardFork {
 }
 
 impl HardFork {
-    /// The current [`HardFork`].
+    /// The latest [`HardFork`].
     ///
     /// ```rust
     /// # use cuprate_types::HardFork;
-    /// assert_eq!(HardFork::CURRENT, HardFork::V16);
+    /// assert_eq!(HardFork::LATEST, HardFork::V16);
     /// ```
-    pub const CURRENT: Self = Self::VARIANTS[Self::COUNT - 1];
+    pub const LATEST: Self = Self::VARIANTS[Self::COUNT - 1];
 
     /// Returns the hard-fork for a blocks [`BlockHeader::hardfork_version`] field.
     ///
@@ -101,21 +101,9 @@ impl HardFork {
     /// ```
     #[inline]
     pub const fn from_version(version: u8) -> Result<Self, HardForkError> {
-        #[expect(
-            clippy::cast_possible_truncation,
-            reason = "we check that `HardFork::COUNT` fits into a `u8`."
-        )]
-        const COUNT_AS_U8: u8 = {
-            const COUNT: usize = HardFork::COUNT;
-            assert!(COUNT <= u8::MAX as usize);
-            COUNT as u8
-        };
-
-        if version == 0 || version > COUNT_AS_U8 {
-            Err(HardForkError::HardForkUnknown)
-        } else {
-            // INVARIANT: we've proved above that `version` is in a valid range.
-            Ok(Self::VARIANTS[(version - 1) as usize])
+        match Self::from_repr(version) {
+            Some(this) => Ok(this),
+            None => Err(HardForkError::HardForkUnknown),
         }
     }
 
@@ -128,7 +116,7 @@ impl HardFork {
     /// # use strum::VariantArray;
     /// // 0 is interpreted as 1.
     /// assert_eq!(HardFork::from_vote(0), HardFork::V1);
-    /// // Unknown defaults to `CURRENT`.
+    /// // Unknown defaults to `LATEST`.
     /// assert_eq!(HardFork::from_vote(17), HardFork::V16);
     ///
     /// for (vote, hf) in HardFork::VARIANTS.iter().enumerate() {
@@ -143,7 +131,7 @@ impl HardFork {
             Self::V1
         } else {
             // This must default to the latest hard-fork!
-            Self::from_version(vote).unwrap_or(Self::CURRENT)
+            Self::from_version(vote).unwrap_or(Self::LATEST)
         }
     }
 
@@ -188,21 +176,21 @@ impl HardFork {
         }
     }
 
-    /// Returns `true` if `self` is [`Self::CURRENT`].
+    /// Returns `true` if `self` is [`Self::LATEST`].
     ///
     /// ```rust
     /// # use cuprate_types::HardFork;
     /// # use strum::VariantArray;
     ///
     /// for hf in HardFork::VARIANTS.iter() {
-    ///     if *hf == HardFork::CURRENT {
-    ///         assert!(hf.is_current());
+    ///     if *hf == HardFork::LATEST {
+    ///         assert!(hf.is_latest());
     ///     } else {
-    ///         assert!(!hf.is_current());
+    ///         assert!(!hf.is_latest());
     ///     }
     /// }
     /// ```
-    pub const fn is_current(self) -> bool {
-        matches!(self, Self::CURRENT)
+    pub const fn is_latest(self) -> bool {
+        matches!(self, Self::LATEST)
     }
 }