639 lines
24 KiB
Rust
639 lines
24 KiB
Rust
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//! The `pubsub` module implements a threaded subscription service on client RPC request
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use bank::Bank;
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use bs58;
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use jsonrpc_core::futures::Future;
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use jsonrpc_core::*;
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use jsonrpc_macros::pubsub;
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use jsonrpc_pubsub::{PubSubHandler, PubSubMetadata, Session, SubscriptionId};
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use jsonrpc_ws_server::ws;
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use jsonrpc_ws_server::{RequestContext, Sender, ServerBuilder};
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use rpc::{JsonRpcRequestProcessor, RpcSignatureStatus};
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use signature::{Keypair, KeypairUtil, Signature};
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use solana_program_interface::account::Account;
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use solana_program_interface::pubkey::Pubkey;
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use std::collections::HashMap;
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use std::mem;
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use std::net::SocketAddr;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::{atomic, Arc, Mutex, RwLock};
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use std::thread::{sleep, Builder, JoinHandle};
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use std::time::Duration;
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pub enum ClientState {
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Uninitialized,
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Init(Sender),
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}
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#[derive(Serialize)]
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pub struct SubscriptionResponse {
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pub port: u16,
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pub path: String,
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}
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pub struct PubSubService {
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_thread_hdl: JoinHandle<()>,
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}
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impl PubSubService {
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pub fn new(
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bank: &Arc<Bank>,
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pubsub_addr: SocketAddr,
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path: Pubkey,
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exit: Arc<AtomicBool>,
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) -> Self {
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let request_processor = JsonRpcRequestProcessor::new(bank.clone());
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let status = Arc::new(Mutex::new(ClientState::Uninitialized));
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let client_status = status.clone();
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let server_bank = bank.clone();
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let _thread_hdl = Builder::new()
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.name("solana-pubsub".to_string())
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.spawn(move || {
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let mut io = PubSubHandler::default();
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let rpc = RpcSolPubSubImpl::default();
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let account_subs = rpc.account_subscriptions.clone();
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let signature_subs = rpc.signature_subscriptions.clone();
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io.extend_with(rpc.to_delegate());
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let server = ServerBuilder::with_meta_extractor(io, move |context: &RequestContext|
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{
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*client_status.lock().unwrap() = ClientState::Init(context.out.clone());
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Meta {
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request_processor: request_processor.clone(),
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session: Arc::new(Session::new(context.sender().clone())),
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}
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})
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.request_middleware(move |req: &ws::Request|
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if req.resource() != format!("/{}", path.to_string()) {
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Some(ws::Response::new(403, "Client path incorrect or not provided"))
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} else {
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None
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})
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.start(&pubsub_addr);
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if server.is_err() {
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warn!("Pubsub service unavailable: unable to bind to port {}. \nMake sure this port is not already in use by another application", pubsub_addr.port());
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return;
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}
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while !exit.load(Ordering::Relaxed) {
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if let ClientState::Init(ref mut sender) = *status.lock().unwrap() {
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if sender.check_active().is_err() {
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break;
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}
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}
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sleep(Duration::from_millis(100));
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}
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for (_, (bank_sub_id, pubkey)) in account_subs.read().unwrap().iter() {
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server_bank.remove_account_subscription(bank_sub_id, pubkey);
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}
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for (_, (bank_sub_id, signature)) in signature_subs.read().unwrap().iter() {
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server_bank.remove_signature_subscription(bank_sub_id, signature);
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}
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server.unwrap().close();
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()
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})
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.unwrap();
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PubSubService { _thread_hdl }
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}
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}
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#[derive(Clone)]
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pub struct Meta {
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pub request_processor: JsonRpcRequestProcessor,
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pub session: Arc<Session>,
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}
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impl Metadata for Meta {}
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impl PubSubMetadata for Meta {
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fn session(&self) -> Option<Arc<Session>> {
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Some(self.session.clone())
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}
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}
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build_rpc_trait! {
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pub trait RpcSolPubSub {
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type Metadata;
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#[pubsub(name = "accountNotification")] {
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// Get notification every time account userdata is changed
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// Accepts pubkey parameter as base-58 encoded string
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#[rpc(name = "accountSubscribe")]
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fn account_subscribe(&self, Self::Metadata, pubsub::Subscriber<Account>, String);
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// Unsubscribe from account notification subscription.
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#[rpc(name = "accountUnsubscribe")]
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fn account_unsubscribe(&self, Self::Metadata, SubscriptionId) -> Result<bool>;
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}
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#[pubsub(name = "signatureNotification")] {
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// Get notification when signature is verified
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// Accepts signature parameter as base-58 encoded string
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#[rpc(name = "signatureSubscribe")]
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fn signature_subscribe(&self, Self::Metadata, pubsub::Subscriber<RpcSignatureStatus>, String);
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// Unsubscribe from signature notification subscription.
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#[rpc(name = "signatureUnsubscribe")]
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fn signature_unsubscribe(&self, Self::Metadata, SubscriptionId) -> Result<bool>;
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}
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}
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}
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#[derive(Default)]
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struct RpcSolPubSubImpl {
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uid: atomic::AtomicUsize,
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account_subscriptions: Arc<RwLock<HashMap<SubscriptionId, (Pubkey, Pubkey)>>>,
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signature_subscriptions: Arc<RwLock<HashMap<SubscriptionId, (Pubkey, Signature)>>>,
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}
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impl RpcSolPubSub for RpcSolPubSubImpl {
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type Metadata = Meta;
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fn account_subscribe(
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&self,
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meta: Self::Metadata,
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subscriber: pubsub::Subscriber<Account>,
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pubkey_str: String,
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) {
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let pubkey_vec = bs58::decode(pubkey_str).into_vec().unwrap();
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if pubkey_vec.len() != mem::size_of::<Pubkey>() {
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subscriber
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.reject(Error {
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code: ErrorCode::InvalidParams,
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message: "Invalid Request: Invalid pubkey provided".into(),
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data: None,
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}).unwrap();
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return;
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}
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let pubkey = Pubkey::new(&pubkey_vec);
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let id = self.uid.fetch_add(1, atomic::Ordering::SeqCst);
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let sub_id = SubscriptionId::Number(id as u64);
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let sink = subscriber.assign_id(sub_id.clone()).unwrap();
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let bank_sub_id = Keypair::new().pubkey();
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self.account_subscriptions
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.write()
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.unwrap()
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.insert(sub_id.clone(), (bank_sub_id, pubkey));
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meta.request_processor
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.add_account_subscription(bank_sub_id, pubkey, sink);
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}
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fn account_unsubscribe(&self, meta: Self::Metadata, id: SubscriptionId) -> Result<bool> {
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if let Some((bank_sub_id, pubkey)) = self.account_subscriptions.write().unwrap().remove(&id)
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{
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meta.request_processor
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.remove_account_subscription(&bank_sub_id, &pubkey);
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Ok(true)
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} else {
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Err(Error {
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code: ErrorCode::InvalidParams,
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message: "Invalid Request: Subscription id does not exist".into(),
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data: None,
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})
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}
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}
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fn signature_subscribe(
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&self,
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meta: Self::Metadata,
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subscriber: pubsub::Subscriber<RpcSignatureStatus>,
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signature_str: String,
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) {
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let signature_vec = bs58::decode(signature_str).into_vec().unwrap();
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if signature_vec.len() != mem::size_of::<Signature>() {
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subscriber
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.reject(Error {
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code: ErrorCode::InvalidParams,
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message: "Invalid Request: Invalid signature provided".into(),
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data: None,
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}).unwrap();
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return;
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}
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let signature = Signature::new(&signature_vec);
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let id = self.uid.fetch_add(1, atomic::Ordering::SeqCst);
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let sub_id = SubscriptionId::Number(id as u64);
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let sink = subscriber.assign_id(sub_id.clone()).unwrap();
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let bank_sub_id = Keypair::new().pubkey();
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self.signature_subscriptions
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.write()
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.unwrap()
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.insert(sub_id.clone(), (bank_sub_id, signature));
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match meta.request_processor.get_signature_status(signature) {
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Ok(_) => {
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sink.notify(Ok(RpcSignatureStatus::Confirmed))
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.wait()
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.unwrap();
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self.signature_subscriptions
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.write()
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.unwrap()
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.remove(&sub_id);
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}
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Err(_) => {
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meta.request_processor
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.add_signature_subscription(bank_sub_id, signature, sink);
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}
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}
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}
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fn signature_unsubscribe(&self, meta: Self::Metadata, id: SubscriptionId) -> Result<bool> {
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if let Some((bank_sub_id, signature)) =
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self.signature_subscriptions.write().unwrap().remove(&id)
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{
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meta.request_processor
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.remove_signature_subscription(&bank_sub_id, &signature);
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Ok(true)
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} else {
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Err(Error {
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code: ErrorCode::InvalidParams,
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message: "Invalid Request: Subscription id does not exist".into(),
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data: None,
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})
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use budget_program::BudgetState;
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use budget_transaction::BudgetTransaction;
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use jsonrpc_core::futures::sync::mpsc;
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use mint::Mint;
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use signature::{Keypair, KeypairUtil};
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use std::net::{IpAddr, Ipv4Addr};
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use system_transaction::SystemTransaction;
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use tokio::prelude::{Async, Stream};
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use transaction::Transaction;
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#[test]
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fn test_pubsub_new() {
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let alice = Mint::new(10_000);
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let bank = Bank::new(&alice);
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let pubsub_addr = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 0);
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let pubkey = Keypair::new().pubkey();
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let exit = Arc::new(AtomicBool::new(false));
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let pubsub_service = PubSubService::new(&Arc::new(bank), pubsub_addr, pubkey, exit);
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let thread = pubsub_service._thread_hdl.thread();
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assert_eq!(thread.name().unwrap(), "solana-pubsub");
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}
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#[test]
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fn test_signature_subscribe() {
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let alice = Mint::new(10_000);
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let bob = Keypair::new();
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let bob_pubkey = bob.pubkey();
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let bank = Bank::new(&alice);
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let arc_bank = Arc::new(bank);
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let last_id = arc_bank.last_id();
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let request_processor = JsonRpcRequestProcessor::new(arc_bank.clone());
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let (sender, mut receiver) = mpsc::channel(1);
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let session = Arc::new(Session::new(sender));
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let mut io = PubSubHandler::default();
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let rpc = RpcSolPubSubImpl::default();
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io.extend_with(rpc.to_delegate());
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let meta = Meta {
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request_processor,
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session,
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};
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// Test signature subscription
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let tx = Transaction::system_move(&alice.keypair(), bob_pubkey, 20, last_id, 0);
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let req = format!(
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r#"{{"jsonrpc":"2.0","id":1,"method":"signatureSubscribe","params":["{}"]}}"#,
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tx.signature.to_string()
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);
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let res = io.handle_request_sync(&req, meta.clone());
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let expected = format!(r#"{{"jsonrpc":"2.0","result":0,"id":1}}"#);
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let expected: Response =
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serde_json::from_str(&expected).expect("expected response deserialization");
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let result: Response = serde_json::from_str(&res.expect("actual response"))
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.expect("actual response deserialization");
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assert_eq!(expected, result);
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// Test bad parameter
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let req = format!(
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r#"{{"jsonrpc":"2.0","id":1,"method":"signatureSubscribe","params":["a1b2c3"]}}"#
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);
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let res = io.handle_request_sync(&req, meta.clone());
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let expected = format!(r#"{{"jsonrpc":"2.0","error":{{"code":-32602,"message":"Invalid Request: Invalid signature provided"}},"id":1}}"#);
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let expected: Response =
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serde_json::from_str(&expected).expect("expected response deserialization");
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let result: Response = serde_json::from_str(&res.expect("actual response"))
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.expect("actual response deserialization");
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assert_eq!(expected, result);
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arc_bank
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.process_transaction(&tx)
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.expect("process transaction");
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sleep(Duration::from_millis(200));
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// Test signature confirmation notification
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let string = receiver.poll();
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assert!(string.is_ok());
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if let Async::Ready(Some(response)) = string.unwrap() {
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let expected = format!(r#"{{"jsonrpc":"2.0","method":"signatureNotification","params":{{"result":"Confirmed","subscription":0}}}}"#);
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assert_eq!(expected, response);
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}
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// Test subscription id increment
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let tx = Transaction::system_move(&alice.keypair(), bob_pubkey, 10, last_id, 0);
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let req = format!(
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r#"{{"jsonrpc":"2.0","id":1,"method":"signatureSubscribe","params":["{}"]}}"#,
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tx.signature.to_string()
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);
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let res = io.handle_request_sync(&req, meta.clone());
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let expected = format!(r#"{{"jsonrpc":"2.0","result":1,"id":1}}"#);
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let expected: Response =
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serde_json::from_str(&expected).expect("expected response deserialization");
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let result: Response = serde_json::from_str(&res.expect("actual response"))
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.expect("actual response deserialization");
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assert_eq!(expected, result);
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}
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#[test]
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fn test_signature_unsubscribe() {
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let alice = Mint::new(10_000);
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let bob_pubkey = Keypair::new().pubkey();
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let bank = Bank::new(&alice);
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let arc_bank = Arc::new(bank);
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let last_id = arc_bank.last_id();
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let request_processor = JsonRpcRequestProcessor::new(arc_bank);
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let (sender, _receiver) = mpsc::channel(1);
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let session = Arc::new(Session::new(sender));
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let mut io = PubSubHandler::default();
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let rpc = RpcSolPubSubImpl::default();
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io.extend_with(rpc.to_delegate());
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let meta = Meta {
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request_processor,
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session: session.clone(),
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};
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let tx = Transaction::system_move(&alice.keypair(), bob_pubkey, 20, last_id, 0);
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let req = format!(
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r#"{{"jsonrpc":"2.0","id":1,"method":"signatureSubscribe","params":["{}"]}}"#,
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tx.signature.to_string()
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);
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let _res = io.handle_request_sync(&req, meta.clone());
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let req =
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format!(r#"{{"jsonrpc":"2.0","id":1,"method":"signatureUnsubscribe","params":[0]}}"#);
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let res = io.handle_request_sync(&req, meta.clone());
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let expected = format!(r#"{{"jsonrpc":"2.0","result":true,"id":1}}"#);
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let expected: Response =
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serde_json::from_str(&expected).expect("expected response deserialization");
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let result: Response = serde_json::from_str(&res.expect("actual response"))
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.expect("actual response deserialization");
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assert_eq!(expected, result);
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// Test bad parameter
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let req =
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format!(r#"{{"jsonrpc":"2.0","id":1,"method":"signatureUnsubscribe","params":[1]}}"#);
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let res = io.handle_request_sync(&req, meta.clone());
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let expected = format!(r#"{{"jsonrpc":"2.0","error":{{"code":-32602,"message":"Invalid Request: Subscription id does not exist"}},"id":1}}"#);
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let expected: Response =
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serde_json::from_str(&expected).expect("expected response deserialization");
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let result: Response = serde_json::from_str(&res.expect("actual response"))
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.expect("actual response deserialization");
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assert_eq!(expected, result);
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}
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#[test]
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|
fn test_account_subscribe() {
|
||
|
let alice = Mint::new(10_000);
|
||
|
let bob_pubkey = Keypair::new().pubkey();
|
||
|
let witness = Keypair::new();
|
||
|
let contract_funds = Keypair::new();
|
||
|
let contract_state = Keypair::new();
|
||
|
let budget_program_id = BudgetState::id();
|
||
|
let bank = Bank::new(&alice);
|
||
|
let arc_bank = Arc::new(bank);
|
||
|
let last_id = arc_bank.last_id();
|
||
|
|
||
|
let request_processor = JsonRpcRequestProcessor::new(arc_bank.clone());
|
||
|
let (sender, mut receiver) = mpsc::channel(1);
|
||
|
let session = Arc::new(Session::new(sender));
|
||
|
|
||
|
let mut io = PubSubHandler::default();
|
||
|
let rpc = RpcSolPubSubImpl::default();
|
||
|
io.extend_with(rpc.to_delegate());
|
||
|
let meta = Meta {
|
||
|
request_processor,
|
||
|
session,
|
||
|
};
|
||
|
|
||
|
let req = format!(
|
||
|
r#"{{"jsonrpc":"2.0","id":1,"method":"accountSubscribe","params":["{}"]}}"#,
|
||
|
contract_state.pubkey().to_string()
|
||
|
);
|
||
|
|
||
|
let res = io.handle_request_sync(&req, meta.clone());
|
||
|
let expected = format!(r#"{{"jsonrpc":"2.0","result":0,"id":1}}"#);
|
||
|
let expected: Response =
|
||
|
serde_json::from_str(&expected).expect("expected response deserialization");
|
||
|
|
||
|
let result: Response = serde_json::from_str(&res.expect("actual response"))
|
||
|
.expect("actual response deserialization");
|
||
|
assert_eq!(expected, result);
|
||
|
|
||
|
// Test bad parameter
|
||
|
let req = format!(
|
||
|
r#"{{"jsonrpc":"2.0","id":1,"method":"accountSubscribe","params":["a1b2c3"]}}"#
|
||
|
);
|
||
|
let res = io.handle_request_sync(&req, meta.clone());
|
||
|
let expected = format!(r#"{{"jsonrpc":"2.0","error":{{"code":-32602,"message":"Invalid Request: Invalid pubkey provided"}},"id":1}}"#);
|
||
|
let expected: Response =
|
||
|
serde_json::from_str(&expected).expect("expected response deserialization");
|
||
|
|
||
|
let result: Response = serde_json::from_str(&res.expect("actual response"))
|
||
|
.expect("actual response deserialization");
|
||
|
assert_eq!(expected, result);
|
||
|
|
||
|
let tx = Transaction::system_create(
|
||
|
&alice.keypair(),
|
||
|
contract_funds.pubkey(),
|
||
|
last_id,
|
||
|
50,
|
||
|
0,
|
||
|
budget_program_id,
|
||
|
0,
|
||
|
);
|
||
|
arc_bank
|
||
|
.process_transaction(&tx)
|
||
|
.expect("process transaction");
|
||
|
|
||
|
let tx = Transaction::system_create(
|
||
|
&alice.keypair(),
|
||
|
contract_state.pubkey(),
|
||
|
last_id,
|
||
|
1,
|
||
|
196,
|
||
|
budget_program_id,
|
||
|
0,
|
||
|
);
|
||
|
arc_bank
|
||
|
.process_transaction(&tx)
|
||
|
.expect("process transaction");
|
||
|
|
||
|
// Test signature confirmation notification #1
|
||
|
let string = receiver.poll();
|
||
|
assert!(string.is_ok());
|
||
|
let expected_userdata = arc_bank
|
||
|
.get_account(&contract_state.pubkey())
|
||
|
.unwrap()
|
||
|
.userdata;
|
||
|
let expected = json!({
|
||
|
"jsonrpc": "2.0",
|
||
|
"method": "accountNotification",
|
||
|
"params": {
|
||
|
"result": {
|
||
|
"program_id": budget_program_id,
|
||
|
"tokens": 1,
|
||
|
"userdata": expected_userdata
|
||
|
},
|
||
|
"subscription": 0,
|
||
|
}
|
||
|
});
|
||
|
|
||
|
if let Async::Ready(Some(response)) = string.unwrap() {
|
||
|
assert_eq!(serde_json::to_string(&expected).unwrap(), response);
|
||
|
}
|
||
|
|
||
|
let tx = Transaction::budget_new_when_signed(
|
||
|
&contract_funds,
|
||
|
bob_pubkey,
|
||
|
contract_state.pubkey(),
|
||
|
witness.pubkey(),
|
||
|
None,
|
||
|
50,
|
||
|
last_id,
|
||
|
);
|
||
|
arc_bank
|
||
|
.process_transaction(&tx)
|
||
|
.expect("process transaction");
|
||
|
sleep(Duration::from_millis(200));
|
||
|
|
||
|
// Test signature confirmation notification #2
|
||
|
let string = receiver.poll();
|
||
|
assert!(string.is_ok());
|
||
|
let expected_userdata = arc_bank
|
||
|
.get_account(&contract_state.pubkey())
|
||
|
.unwrap()
|
||
|
.userdata;
|
||
|
let expected = json!({
|
||
|
"jsonrpc": "2.0",
|
||
|
"method": "accountNotification",
|
||
|
"params": {
|
||
|
"result": {
|
||
|
"program_id": budget_program_id,
|
||
|
"tokens": 51,
|
||
|
"userdata": expected_userdata
|
||
|
},
|
||
|
"subscription": 0,
|
||
|
}
|
||
|
});
|
||
|
|
||
|
if let Async::Ready(Some(response)) = string.unwrap() {
|
||
|
assert_eq!(serde_json::to_string(&expected).unwrap(), response);
|
||
|
}
|
||
|
|
||
|
let tx = Transaction::system_new(&alice.keypair(), witness.pubkey(), 1, last_id);
|
||
|
arc_bank
|
||
|
.process_transaction(&tx)
|
||
|
.expect("process transaction");
|
||
|
sleep(Duration::from_millis(200));
|
||
|
let tx = Transaction::budget_new_signature(
|
||
|
&witness,
|
||
|
contract_state.pubkey(),
|
||
|
bob_pubkey,
|
||
|
last_id,
|
||
|
);
|
||
|
arc_bank
|
||
|
.process_transaction(&tx)
|
||
|
.expect("process transaction");
|
||
|
sleep(Duration::from_millis(200));
|
||
|
|
||
|
let expected_userdata = arc_bank
|
||
|
.get_account(&contract_state.pubkey())
|
||
|
.unwrap()
|
||
|
.userdata;
|
||
|
let expected = json!({
|
||
|
"jsonrpc": "2.0",
|
||
|
"method": "accountNotification",
|
||
|
"params": {
|
||
|
"result": {
|
||
|
"program_id": budget_program_id,
|
||
|
"tokens": 1,
|
||
|
"userdata": expected_userdata
|
||
|
},
|
||
|
"subscription": 0,
|
||
|
}
|
||
|
});
|
||
|
let string = receiver.poll();
|
||
|
assert!(string.is_ok());
|
||
|
if let Async::Ready(Some(response)) = string.unwrap() {
|
||
|
assert_eq!(serde_json::to_string(&expected).unwrap(), response);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#[test]
|
||
|
fn test_account_unsubscribe() {
|
||
|
let alice = Mint::new(10_000);
|
||
|
let bob_pubkey = Keypair::new().pubkey();
|
||
|
let bank = Bank::new(&alice);
|
||
|
let arc_bank = Arc::new(bank);
|
||
|
|
||
|
let request_processor = JsonRpcRequestProcessor::new(arc_bank);
|
||
|
let (sender, _receiver) = mpsc::channel(1);
|
||
|
let session = Arc::new(Session::new(sender));
|
||
|
|
||
|
let mut io = PubSubHandler::default();
|
||
|
let rpc = RpcSolPubSubImpl::default();
|
||
|
io.extend_with(rpc.to_delegate());
|
||
|
let meta = Meta {
|
||
|
request_processor,
|
||
|
session: session.clone(),
|
||
|
};
|
||
|
|
||
|
let req = format!(
|
||
|
r#"{{"jsonrpc":"2.0","id":1,"method":"accountSubscribe","params":["{}"]}}"#,
|
||
|
bob_pubkey.to_string()
|
||
|
);
|
||
|
let _res = io.handle_request_sync(&req, meta.clone());
|
||
|
|
||
|
let req =
|
||
|
format!(r#"{{"jsonrpc":"2.0","id":1,"method":"accountUnsubscribe","params":[0]}}"#);
|
||
|
let res = io.handle_request_sync(&req, meta.clone());
|
||
|
|
||
|
let expected = format!(r#"{{"jsonrpc":"2.0","result":true,"id":1}}"#);
|
||
|
let expected: Response =
|
||
|
serde_json::from_str(&expected).expect("expected response deserialization");
|
||
|
|
||
|
let result: Response = serde_json::from_str(&res.expect("actual response"))
|
||
|
.expect("actual response deserialization");
|
||
|
assert_eq!(expected, result);
|
||
|
|
||
|
// Test bad parameter
|
||
|
let req =
|
||
|
format!(r#"{{"jsonrpc":"2.0","id":1,"method":"accountUnsubscribe","params":[1]}}"#);
|
||
|
let res = io.handle_request_sync(&req, meta.clone());
|
||
|
let expected = format!(r#"{{"jsonrpc":"2.0","error":{{"code":-32602,"message":"Invalid Request: Subscription id does not exist"}},"id":1}}"#);
|
||
|
let expected: Response =
|
||
|
serde_json::from_str(&expected).expect("expected response deserialization");
|
||
|
|
||
|
let result: Response = serde_json::from_str(&res.expect("actual response"))
|
||
|
.expect("actual response deserialization");
|
||
|
assert_eq!(expected, result);
|
||
|
}
|
||
|
}
|