use {
crate::nonblocking,
solana_rpc_client::nonblocking::rpc_client::RpcClient,
solana_sdk::{commitment_config::CommitmentConfig, hash::Hash, pubkey::Pubkey},
};
#[cfg(feature = "clap")]
use {
clap::ArgMatches,
solana_clap_utils::{
input_parsers::{pubkey_of, value_of},
nonce::*,
offline::*,
},
};
#[derive(Debug, PartialEq, Eq)]
pub enum Source {
Cluster,
NonceAccount(Pubkey),
}
impl Source {
pub async fn get_blockhash(
&self,
rpc_client: &RpcClient,
commitment: CommitmentConfig,
) -> Result<Hash, Box<dyn std::error::Error>> {
match self {
Self::Cluster => {
let (blockhash, _) = rpc_client
.get_latest_blockhash_with_commitment(commitment)
.await?;
Ok(blockhash)
}
Self::NonceAccount(ref pubkey) => {
let data = nonblocking::get_account_with_commitment(rpc_client, pubkey, commitment)
.await
.and_then(|ref a| nonblocking::data_from_account(a))?;
Ok(data.blockhash())
}
}
}
pub async fn is_blockhash_valid(
&self,
rpc_client: &RpcClient,
blockhash: &Hash,
commitment: CommitmentConfig,
) -> Result<bool, Box<dyn std::error::Error>> {
Ok(match self {
Self::Cluster => rpc_client.is_blockhash_valid(blockhash, commitment).await?,
Self::NonceAccount(ref pubkey) => {
let _ = nonblocking::get_account_with_commitment(rpc_client, pubkey, commitment)
.await
.and_then(|ref a| nonblocking::data_from_account(a))?;
true
}
})
}
}
#[derive(Debug, PartialEq, Eq)]
pub enum BlockhashQuery {
Static(Hash),
Validated(Source, Hash),
Rpc(Source),
}
impl BlockhashQuery {
pub fn new(blockhash: Option<Hash>, sign_only: bool, nonce_account: Option<Pubkey>) -> Self {
let source = nonce_account
.map(Source::NonceAccount)
.unwrap_or(Source::Cluster);
match blockhash {
Some(hash) if sign_only => Self::Static(hash),
Some(hash) if !sign_only => Self::Validated(source, hash),
None if !sign_only => Self::Rpc(source),
_ => panic!("Cannot resolve blockhash"),
}
}
#[cfg(feature = "clap")]
pub fn new_from_matches(matches: &ArgMatches<'_>) -> Self {
let blockhash = value_of(matches, BLOCKHASH_ARG.name);
let sign_only = matches.is_present(SIGN_ONLY_ARG.name);
let nonce_account = pubkey_of(matches, NONCE_ARG.name);
BlockhashQuery::new(blockhash, sign_only, nonce_account)
}
pub async fn get_blockhash(
&self,
rpc_client: &RpcClient,
commitment: CommitmentConfig,
) -> Result<Hash, Box<dyn std::error::Error>> {
match self {
BlockhashQuery::Static(hash) => Ok(*hash),
BlockhashQuery::Validated(source, hash) => {
if !source
.is_blockhash_valid(rpc_client, hash, commitment)
.await?
{
return Err(format!("Hash has expired {hash:?}").into());
}
Ok(*hash)
}
BlockhashQuery::Rpc(source) => source.get_blockhash(rpc_client, commitment).await,
}
}
}
impl Default for BlockhashQuery {
fn default() -> Self {
BlockhashQuery::Rpc(Source::Cluster)
}
}
#[cfg(test)]
mod tests {
#[cfg(feature = "clap")]
use clap::App;
use {
super::*,
crate::nonblocking::blockhash_query,
serde_json::{self, json},
solana_account_decoder::{encode_ui_account, UiAccountEncoding},
solana_rpc_client_api::{
request::RpcRequest,
response::{Response, RpcBlockhash, RpcResponseContext},
},
solana_sdk::{
account::Account,
fee_calculator::FeeCalculator,
hash::hash,
nonce::{self, state::DurableNonce},
system_program,
},
std::collections::HashMap,
};
#[test]
fn test_blockhash_query_new_ok() {
let blockhash = hash(&[1u8]);
let nonce_pubkey = Pubkey::from([1u8; 32]);
assert_eq!(
BlockhashQuery::new(Some(blockhash), true, None),
BlockhashQuery::Static(blockhash),
);
assert_eq!(
BlockhashQuery::new(Some(blockhash), false, None),
BlockhashQuery::Validated(blockhash_query::Source::Cluster, blockhash),
);
assert_eq!(
BlockhashQuery::new(None, false, None),
BlockhashQuery::Rpc(blockhash_query::Source::Cluster)
);
assert_eq!(
BlockhashQuery::new(Some(blockhash), true, Some(nonce_pubkey)),
BlockhashQuery::Static(blockhash),
);
assert_eq!(
BlockhashQuery::new(Some(blockhash), false, Some(nonce_pubkey)),
BlockhashQuery::Validated(
blockhash_query::Source::NonceAccount(nonce_pubkey),
blockhash
),
);
assert_eq!(
BlockhashQuery::new(None, false, Some(nonce_pubkey)),
BlockhashQuery::Rpc(blockhash_query::Source::NonceAccount(nonce_pubkey)),
);
}
#[test]
#[should_panic]
fn test_blockhash_query_new_no_nonce_fail() {
BlockhashQuery::new(None, true, None);
}
#[test]
#[should_panic]
fn test_blockhash_query_new_nonce_fail() {
let nonce_pubkey = Pubkey::from([1u8; 32]);
BlockhashQuery::new(None, true, Some(nonce_pubkey));
}
#[cfg(feature = "clap")]
#[test]
fn test_blockhash_query_new_from_matches_ok() {
let test_commands = App::new("blockhash_query_test")
.nonce_args(false)
.offline_args();
let blockhash = hash(&[1u8]);
let blockhash_string = blockhash.to_string();
let matches = test_commands.clone().get_matches_from(vec![
"blockhash_query_test",
"--blockhash",
&blockhash_string,
"--sign-only",
]);
assert_eq!(
BlockhashQuery::new_from_matches(&matches),
BlockhashQuery::Static(blockhash),
);
let matches = test_commands.clone().get_matches_from(vec![
"blockhash_query_test",
"--blockhash",
&blockhash_string,
]);
assert_eq!(
BlockhashQuery::new_from_matches(&matches),
BlockhashQuery::Validated(blockhash_query::Source::Cluster, blockhash),
);
let matches = test_commands
.clone()
.get_matches_from(vec!["blockhash_query_test"]);
assert_eq!(
BlockhashQuery::new_from_matches(&matches),
BlockhashQuery::Rpc(blockhash_query::Source::Cluster),
);
let nonce_pubkey = Pubkey::from([1u8; 32]);
let nonce_string = nonce_pubkey.to_string();
let matches = test_commands.clone().get_matches_from(vec![
"blockhash_query_test",
"--blockhash",
&blockhash_string,
"--sign-only",
"--nonce",
&nonce_string,
]);
assert_eq!(
BlockhashQuery::new_from_matches(&matches),
BlockhashQuery::Static(blockhash),
);
let matches = test_commands.clone().get_matches_from(vec![
"blockhash_query_test",
"--blockhash",
&blockhash_string,
"--nonce",
&nonce_string,
]);
assert_eq!(
BlockhashQuery::new_from_matches(&matches),
BlockhashQuery::Validated(
blockhash_query::Source::NonceAccount(nonce_pubkey),
blockhash
),
);
}
#[cfg(feature = "clap")]
#[test]
#[should_panic]
fn test_blockhash_query_new_from_matches_without_nonce_fail() {
let test_commands = App::new("blockhash_query_test")
.arg(blockhash_arg())
.arg(sign_only_arg().requires(""));
let matches = test_commands.get_matches_from(vec!["blockhash_query_test", "--sign-only"]);
BlockhashQuery::new_from_matches(&matches);
}
#[cfg(feature = "clap")]
#[test]
#[should_panic]
fn test_blockhash_query_new_from_matches_with_nonce_fail() {
let test_commands = App::new("blockhash_query_test")
.arg(blockhash_arg())
.arg(sign_only_arg().requires(""));
let nonce_pubkey = Pubkey::from([1u8; 32]);
let nonce_string = nonce_pubkey.to_string();
let matches = test_commands.get_matches_from(vec![
"blockhash_query_test",
"--sign-only",
"--nonce",
&nonce_string,
]);
BlockhashQuery::new_from_matches(&matches);
}
#[tokio::test]
async fn test_blockhash_query_get_blockhash() {
let test_blockhash = hash(&[0u8]);
let rpc_blockhash = hash(&[1u8]);
let get_latest_blockhash_response = json!(Response {
context: RpcResponseContext {
slot: 1,
api_version: None
},
value: json!(RpcBlockhash {
blockhash: rpc_blockhash.to_string(),
last_valid_block_height: 42,
}),
});
let is_blockhash_valid_response = json!(Response {
context: RpcResponseContext {
slot: 1,
api_version: None
},
value: true
});
let mut mocks = HashMap::new();
mocks.insert(
RpcRequest::GetLatestBlockhash,
get_latest_blockhash_response.clone(),
);
let rpc_client = RpcClient::new_mock_with_mocks("".to_string(), mocks);
assert_eq!(
BlockhashQuery::default()
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.unwrap(),
rpc_blockhash,
);
let mut mocks = HashMap::new();
mocks.insert(
RpcRequest::GetLatestBlockhash,
get_latest_blockhash_response.clone(),
);
mocks.insert(
RpcRequest::IsBlockhashValid,
is_blockhash_valid_response.clone(),
);
let rpc_client = RpcClient::new_mock_with_mocks("".to_string(), mocks);
assert_eq!(
BlockhashQuery::Validated(Source::Cluster, test_blockhash)
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.unwrap(),
test_blockhash,
);
let mut mocks = HashMap::new();
mocks.insert(
RpcRequest::GetLatestBlockhash,
get_latest_blockhash_response.clone(),
);
let rpc_client = RpcClient::new_mock_with_mocks("".to_string(), mocks);
assert_eq!(
BlockhashQuery::Static(test_blockhash)
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.unwrap(),
test_blockhash,
);
let rpc_client = RpcClient::new_mock("fails".to_string());
assert!(BlockhashQuery::default()
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.is_err());
let durable_nonce = DurableNonce::from_blockhash(&Hash::new(&[2u8; 32]));
let nonce_blockhash = *durable_nonce.as_hash();
let nonce_fee_calc = FeeCalculator::new(4242);
let data = nonce::state::Data {
authority: Pubkey::from([3u8; 32]),
durable_nonce,
fee_calculator: nonce_fee_calc,
};
let nonce_account = Account::new_data_with_space(
42,
&nonce::state::Versions::new(nonce::State::Initialized(data)),
nonce::State::size(),
&system_program::id(),
)
.unwrap();
let nonce_pubkey = Pubkey::from([4u8; 32]);
let rpc_nonce_account = encode_ui_account(
&nonce_pubkey,
&nonce_account,
UiAccountEncoding::Base64,
None,
None,
);
let get_account_response = json!(Response {
context: RpcResponseContext {
slot: 1,
api_version: None
},
value: json!(Some(rpc_nonce_account)),
});
let mut mocks = HashMap::new();
mocks.insert(RpcRequest::GetAccountInfo, get_account_response.clone());
let rpc_client = RpcClient::new_mock_with_mocks("".to_string(), mocks);
assert_eq!(
BlockhashQuery::Rpc(Source::NonceAccount(nonce_pubkey))
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.unwrap(),
nonce_blockhash,
);
let mut mocks = HashMap::new();
mocks.insert(RpcRequest::GetAccountInfo, get_account_response.clone());
let rpc_client = RpcClient::new_mock_with_mocks("".to_string(), mocks);
assert_eq!(
BlockhashQuery::Validated(Source::NonceAccount(nonce_pubkey), nonce_blockhash)
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.unwrap(),
nonce_blockhash,
);
let mut mocks = HashMap::new();
mocks.insert(RpcRequest::GetAccountInfo, get_account_response);
let rpc_client = RpcClient::new_mock_with_mocks("".to_string(), mocks);
assert_eq!(
BlockhashQuery::Static(nonce_blockhash)
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.unwrap(),
nonce_blockhash,
);
let rpc_client = RpcClient::new_mock("fails".to_string());
assert!(BlockhashQuery::Rpc(Source::NonceAccount(nonce_pubkey))
.get_blockhash(&rpc_client, CommitmentConfig::default())
.await
.is_err());
}
}