RPC: Support versioned txs in getFeeForMessage API (backport #28217)

cli/src/checks.rs

@@ -114,7 +114,7 @@ pub fn get_fee_for_messages(
 ) -> Result<u64, CliError> {
     Ok(messages
         .iter()
-        .map(|message| rpc_client.get_fee_for_message(message))
+        .map(|message| rpc_client.get_fee_for_message(*message))
         .collect::<Result<Vec<_>, _>>()?
         .iter()
         .sum())

client/src/nonblocking/rpc_client.rs

@@ -18,7 +18,8 @@ use {
         http_sender::HttpSender,
         mock_sender::MockSender,
         rpc_client::{
-            GetConfirmedSignaturesForAddress2Config, RpcClientConfig, SerializableTransaction,
+            GetConfirmedSignaturesForAddress2Config, RpcClientConfig, SerializableMessage,
+            SerializableTransaction,
         },
         rpc_config::{RpcAccountInfoConfig, *},
         rpc_filter::{self, RpcFilterType},
@@ -42,10 +43,9 @@ use {
         epoch_schedule::EpochSchedule,
         fee_calculator::{FeeCalculator, FeeRateGovernor},
         hash::Hash,
-        message::Message,
         pubkey::Pubkey,
         signature::Signature,
-        transaction::{self},
+        transaction,
     },
     solana_transaction_status::{
         EncodedConfirmedBlock, EncodedConfirmedTransactionWithStatusMeta, TransactionStatus,
@@ -5353,28 +5353,20 @@ impl RpcClient {
     }
 
     #[allow(deprecated)]
-    pub async fn get_fee_for_message(&self, message: &Message) -> ClientResult<u64> {
-        if self.get_node_version().await? < semver::Version::new(1, 9, 0) {
-            let fee_calculator = self
-                .get_fee_calculator_for_blockhash(&message.recent_blockhash)
-                .await?
-                .ok_or_else(|| ClientErrorKind::Custom("Invalid blockhash".to_string()))?;
-            Ok(fee_calculator
-                .lamports_per_signature
-                .saturating_mul(message.header.num_required_signatures as u64))
-        } else {
-            let serialized_encoded =
-                serialize_and_encode::<Message>(message, UiTransactionEncoding::Base64)?;
-            let result = self
-                .send::<Response<Option<u64>>>(
-                    RpcRequest::GetFeeForMessage,
-                    json!([serialized_encoded, self.commitment()]),
-                )
-                .await?;
-            result
-                .value
-                .ok_or_else(|| ClientErrorKind::Custom("Invalid blockhash".to_string()).into())
-        }
+    pub async fn get_fee_for_message(
+        &self,
+        message: &impl SerializableMessage,
+    ) -> ClientResult<u64> {
+        let serialized_encoded = serialize_and_encode(message, UiTransactionEncoding::Base64)?;
+        let result = self
+            .send::<Response<Option<u64>>>(
+                RpcRequest::GetFeeForMessage,
+                json!([serialized_encoded, self.commitment()]),
+            )
+            .await?;
+        result
+            .value
+            .ok_or_else(|| ClientErrorKind::Custom("Invalid blockhash".to_string()).into())
     }
 
     pub async fn get_new_latest_blockhash(&self, blockhash: &Hash) -> ClientResult<Hash> {

client/src/rpc_client.rs

@@ -34,7 +34,7 @@ use {
         epoch_schedule::EpochSchedule,
         fee_calculator::{FeeCalculator, FeeRateGovernor},
         hash::Hash,
-        message::Message,
+        message::{v0, Message as LegacyMessage},
         pubkey::Pubkey,
         signature::Signature,
         transaction::{self, uses_durable_nonce, Transaction, VersionedTransaction},
@@ -61,6 +61,12 @@ impl RpcClientConfig {
     }
 }
 
+/// Trait used to add support for versioned messages to RPC APIs while
+/// retaining backwards compatibility
+pub trait SerializableMessage: Serialize {}
+impl SerializableMessage for LegacyMessage {}
+impl SerializableMessage for v0::Message {}
+
 /// Trait used to add support for versioned transactions to RPC APIs while
 /// retaining backwards compatibility
 pub trait SerializableTransaction: Serialize {
@@ -4123,7 +4129,7 @@ impl RpcClient {
     }
 
     #[allow(deprecated)]
-    pub fn get_fee_for_message(&self, message: &Message) -> ClientResult<u64> {
+    pub fn get_fee_for_message(&self, message: &impl SerializableMessage) -> ClientResult<u64> {
         self.invoke(self.rpc_client.get_fee_for_message(message))
     }
 

programs/address-lookup-table/src/error.rs

@@ -1,5 +1,5 @@
 #[cfg(not(target_os = "solana"))]
-use solana_sdk::transaction::TransactionError;
+use solana_program::message::AddressLoaderError;
 use thiserror::Error;
 
 #[derive(Debug, Error, PartialEq, Eq, Clone)]
@@ -22,13 +22,13 @@ pub enum AddressLookupError {
 }
 
 #[cfg(not(target_os = "solana"))]
-impl From<AddressLookupError> for TransactionError {
+impl From<AddressLookupError> for AddressLoaderError {
     fn from(err: AddressLookupError) -> Self {
         match err {
-            AddressLookupError::LookupTableAccountNotFound => Self::AddressLookupTableNotFound,
-            AddressLookupError::InvalidAccountOwner => Self::InvalidAddressLookupTableOwner,
-            AddressLookupError::InvalidAccountData => Self::InvalidAddressLookupTableData,
-            AddressLookupError::InvalidLookupIndex => Self::InvalidAddressLookupTableIndex,
+            AddressLookupError::LookupTableAccountNotFound => Self::LookupTableAccountNotFound,
+            AddressLookupError::InvalidAccountOwner => Self::InvalidAccountOwner,
+            AddressLookupError::InvalidAccountData => Self::InvalidAccountData,
+            AddressLookupError::InvalidLookupIndex => Self::InvalidLookupIndex,
         }
     }
 }

rpc/src/rpc.rs

@@ -64,7 +64,7 @@ use {
         feature_set,
         fee_calculator::FeeCalculator,
         hash::Hash,
-        message::{Message, SanitizedMessage},
+        message::SanitizedMessage,
         pubkey::{Pubkey, PUBKEY_BYTES},
         signature::{Keypair, Signature, Signer},
         stake::state::{StakeActivationStatus, StakeState},
@@ -2161,16 +2161,6 @@ impl JsonRpcRequestProcessor {
         Ok(new_response(&bank, is_valid))
     }
 
-    fn get_fee_for_message(
-        &self,
-        message: &SanitizedMessage,
-        config: RpcContextConfig,
-    ) -> Result<RpcResponse<Option<u64>>> {
-        let bank = self.get_bank_with_config(config)?;
-        let fee = bank.get_fee_for_message(message);
-        Ok(new_response(&bank, fee))
-    }
-
     fn get_stake_minimum_delegation(&self, config: RpcContextConfig) -> Result<RpcResponse<u64>> {
         let bank = self.get_bank_with_config(config)?;
         let stake_minimum_delegation =
@@ -3270,7 +3260,10 @@ pub mod rpc_accounts {
 // Full RPC interface that an API node is expected to provide
 // (rpc_minimal should also be provided by an API node)
 pub mod rpc_full {
-    use super::*;
+    use {
+        super::*,
+        solana_sdk::message::{SanitizedVersionedMessage, VersionedMessage},
+    };
     #[rpc]
     pub trait Full {
         type Metadata;
@@ -3978,12 +3971,21 @@ pub mod rpc_full {
             config: Option<RpcContextConfig>,
         ) -> Result<RpcResponse<Option<u64>>> {
             debug!("get_fee_for_message rpc request received");
-            let (_, message) =
-                decode_and_deserialize::<Message>(data, TransactionBinaryEncoding::Base64)?;
-            let sanitized_message = SanitizedMessage::try_from(message).map_err(|err| {
-                Error::invalid_params(format!("invalid transaction message: {}", err))
-            })?;
-            meta.get_fee_for_message(&sanitized_message, config.unwrap_or_default())
+            let (_, message) = decode_and_deserialize::<VersionedMessage>(
+                data,
+                TransactionBinaryEncoding::Base64,
+            )?;
+            let bank = &*meta.get_bank_with_config(config.unwrap_or_default())?;
+            let sanitized_versioned_message = SanitizedVersionedMessage::try_from(message)
+                .map_err(|err| {
+                    Error::invalid_params(format!("invalid transaction message: {}", err))
+                })?;
+            let sanitized_message = SanitizedMessage::try_new(sanitized_versioned_message, bank)
+                .map_err(|err| {
+                    Error::invalid_params(format!("invalid transaction message: {}", err))
+                })?;
+            let fee = bank.get_fee_for_message(&sanitized_message);
+            Ok(new_response(bank, fee))
         }
 
         fn get_stake_minimum_delegation(
@@ -4602,10 +4604,13 @@ pub mod tests {
         solana_sdk::{
             account::{Account, WritableAccount},
             clock::MAX_RECENT_BLOCKHASHES,
-            fee_calculator::DEFAULT_BURN_PERCENT,
+            fee_calculator::{FeeRateGovernor, DEFAULT_BURN_PERCENT},
             hash::{hash, Hash},
             instruction::InstructionError,
-            message::{v0, v0::MessageAddressTableLookup, MessageHeader, VersionedMessage},
+            message::{
+                v0::{self, MessageAddressTableLookup},
+                Message, MessageHeader, VersionedMessage,
+            },
             nonce::{self, state::DurableNonce},
             rpc_port,
             signature::{Keypair, Signer},
@@ -4636,7 +4641,8 @@ pub mod tests {
         std::{borrow::Cow, collections::HashMap},
     };
 
-    const TEST_MINT_LAMPORTS: u64 = 1_000_000;
+    const TEST_MINT_LAMPORTS: u64 = 1_000_000_000;
+    const TEST_SIGNATURE_FEE: u64 = 5_000;
     const TEST_SLOTS_PER_EPOCH: u64 = DELINQUENT_VALIDATOR_SLOT_DISTANCE + 1;
 
     fn create_test_request(method: &str, params: Option<serde_json::Value>) -> serde_json::Value {
@@ -4781,8 +4787,12 @@ pub mod tests {
             let keypair3 = Keypair::new();
             let bank = self.working_bank();
             let rent_exempt_amount = bank.get_minimum_balance_for_rent_exemption(0);
-            bank.transfer(rent_exempt_amount, mint_keypair, &keypair2.pubkey())
-                .unwrap();
+            bank.transfer(
+                rent_exempt_amount + TEST_SIGNATURE_FEE,
+                mint_keypair,
+                &keypair2.pubkey(),
+            )
+            .unwrap();
 
             let (entries, signatures) = create_test_transaction_entries(
                 vec![&self.mint_keypair, &keypair1, &keypair2, &keypair3],
@@ -5409,7 +5419,7 @@ pub mod tests {
             "context": {"slot": 0, "apiVersion": RpcApiVersion::default()},
             "value":{
                 "owner": "11111111111111111111111111111111",
-                "lamports": 1_000_000,
+                "lamports": TEST_MINT_LAMPORTS,
                 "data": "",
                 "executable": false,
                 "rentEpoch": 0
@@ -5486,7 +5496,7 @@ pub mod tests {
         let expected = json!([
             {
                 "owner": "11111111111111111111111111111111",
-                "lamports": 1_000_000,
+                "lamports": TEST_MINT_LAMPORTS,
                 "data": ["", "base64"],
                 "executable": false,
                 "rentEpoch": 0
@@ -5518,7 +5528,7 @@ pub mod tests {
         let expected = json!([
             {
                 "owner": "11111111111111111111111111111111",
-                "lamports": 1_000_000,
+                "lamports": TEST_MINT_LAMPORTS,
                 "data": ["", "base58"],
                 "executable": false,
                 "rentEpoch": 0
@@ -6105,7 +6115,7 @@ pub mod tests {
                 "value":{
                     "blockhash": recent_blockhash.to_string(),
                     "feeCalculator": {
-                        "lamportsPerSignature": 0,
+                        "lamportsPerSignature": TEST_SIGNATURE_FEE,
                     }
                 },
             },
@@ -6134,7 +6144,7 @@ pub mod tests {
                 "value": {
                     "blockhash": recent_blockhash.to_string(),
                     "feeCalculator": {
-                        "lamportsPerSignature": 0,
+                        "lamportsPerSignature": TEST_SIGNATURE_FEE,
                     },
                     "lastValidSlot": MAX_RECENT_BLOCKHASHES,
                     "lastValidBlockHeight": MAX_RECENT_BLOCKHASHES,
@@ -6214,9 +6224,9 @@ pub mod tests {
                 "value":{
                     "feeRateGovernor": {
                         "burnPercent": DEFAULT_BURN_PERCENT,
-                        "maxLamportsPerSignature": 0,
-                        "minLamportsPerSignature": 0,
-                        "targetLamportsPerSignature": 0,
+                        "maxLamportsPerSignature": TEST_SIGNATURE_FEE,
+                        "minLamportsPerSignature": TEST_SIGNATURE_FEE,
+                        "targetLamportsPerSignature": TEST_SIGNATURE_FEE,
                         "targetSignaturesPerSlot": 0
                     }
                 },
@@ -6484,6 +6494,7 @@ pub mod tests {
         genesis_config.rent.exemption_threshold = 2.0;
         genesis_config.epoch_schedule =
             EpochSchedule::custom(TEST_SLOTS_PER_EPOCH, TEST_SLOTS_PER_EPOCH, false);
+        genesis_config.fee_rate_governor = FeeRateGovernor::new(TEST_SIGNATURE_FEE, 0);
 
         let bank = Bank::new_for_tests(&genesis_config);
         (
@@ -8390,7 +8401,7 @@ pub mod tests {
         assert_eq!(
             sanitize_transaction(versioned_tx, SimpleAddressLoader::Disabled).unwrap_err(),
             Error::invalid_params(
-                "invalid transaction: Transaction loads an address table account that doesn't exist".to_string(),
+                "invalid transaction: Transaction version is unsupported".to_string(),
             )
         );
     }
@@ -8411,4 +8422,52 @@ pub mod tests {
             expected_stake_minimum_delegation
         );
     }
+
+    #[test]
+    fn test_get_fee_for_message() {
+        let rpc = RpcHandler::start();
+        let bank = rpc.working_bank();
+        // Slot hashes is necessary for processing versioned txs.
+        bank.set_sysvar_for_tests(&SlotHashes::default());
+        // Correct blockhash is needed because fees are specific to blockhashes
+        let recent_blockhash = bank.last_blockhash();
+
+        {
+            let legacy_msg = VersionedMessage::Legacy(Message {
+                header: MessageHeader {
+                    num_required_signatures: 1,
+                    ..MessageHeader::default()
+                },
+                recent_blockhash,
+                account_keys: vec![Pubkey::new_unique()],
+                ..Message::default()
+            });
+
+            let request = create_test_request(
+                "getFeeForMessage",
+                Some(json!([base64::encode(&serialize(&legacy_msg).unwrap())])),
+            );
+            let response: RpcResponse<u64> = parse_success_result(rpc.handle_request_sync(request));
+            assert_eq!(response.value, TEST_SIGNATURE_FEE);
+        }
+
+        {
+            let v0_msg = VersionedMessage::V0(v0::Message {
+                header: MessageHeader {
+                    num_required_signatures: 1,
+                    ..MessageHeader::default()
+                },
+                recent_blockhash,
+                account_keys: vec![Pubkey::new_unique()],
+                ..v0::Message::default()
+            });
+
+            let request = create_test_request(
+                "getFeeForMessage",
+                Some(json!([base64::encode(&serialize(&v0_msg).unwrap())])),
+            );
+            let response: RpcResponse<u64> = parse_success_result(rpc.handle_request_sync(request));
+            assert_eq!(response.value, TEST_SIGNATURE_FEE);
+        }
+    }
 }