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| 1 | +use { |
| 2 | + borsh::BorshDeserialize, |
| 3 | + clap::Parser, |
| 4 | + posted_message::PostedMessageUnreliableData, |
| 5 | + secp256k1::SecretKey, |
| 6 | + signed_body::SignedBody, |
| 7 | + solana_account_decoder::UiAccountEncoding, |
| 8 | + solana_client::{ |
| 9 | + nonblocking::pubsub_client::PubsubClient, |
| 10 | + pubsub_client::PubsubClientError, |
| 11 | + rpc_config::{ |
| 12 | + RpcAccountInfoConfig, |
| 13 | + RpcProgramAccountsConfig, |
| 14 | + }, |
| 15 | + rpc_filter::{ |
| 16 | + Memcmp, |
| 17 | + RpcFilterType, |
| 18 | + }, |
| 19 | + }, |
| 20 | + solana_sdk::pubkey::Pubkey, |
| 21 | + std::{ |
| 22 | + fs, |
| 23 | + str::FromStr, |
| 24 | + time::Duration, |
| 25 | + }, |
| 26 | + tokio::time::sleep, |
| 27 | + tokio_stream::StreamExt, |
| 28 | + wormhole_sdk::{ |
| 29 | + vaa::Body, |
| 30 | + Address, |
| 31 | + Chain, |
| 32 | + }, |
| 33 | +}; |
| 34 | + |
| 35 | +mod config; |
| 36 | +mod posted_message; |
| 37 | +mod signed_body; |
| 38 | + |
| 39 | +struct ListenerConfig { |
| 40 | + ws_url: String, |
| 41 | + secret_key: SecretKey, |
| 42 | + wormhole_pid: Pubkey, |
| 43 | + accumulator_address: Pubkey, |
| 44 | +} |
| 45 | + |
| 46 | +fn find_message_pda(wormhole_pid: &Pubkey, slot: u64) -> Pubkey { |
| 47 | + let ring_index = (slot % 10_000) as u32; |
| 48 | + Pubkey::find_program_address( |
| 49 | + &[b"AccumulatorMessage", &ring_index.to_be_bytes()], |
| 50 | + wormhole_pid, |
| 51 | + ) |
| 52 | + .0 |
| 53 | +} |
| 54 | + |
| 55 | +async fn run_listener(config: ListenerConfig) -> Result<(), PubsubClientError> { |
| 56 | + let client = PubsubClient::new(config.ws_url.as_str()).await?; |
| 57 | + let (mut stream, unsubscribe) = client |
| 58 | + .program_subscribe( |
| 59 | + &config.wormhole_pid, |
| 60 | + Some(RpcProgramAccountsConfig { |
| 61 | + filters: Some(vec![RpcFilterType::Memcmp(Memcmp::new( |
| 62 | + 0, |
| 63 | + solana_client::rpc_filter::MemcmpEncodedBytes::Bytes(b"msu".to_vec()), |
| 64 | + ))]), |
| 65 | + account_config: RpcAccountInfoConfig { |
| 66 | + encoding: Some(UiAccountEncoding::Base64), |
| 67 | + data_slice: None, |
| 68 | + commitment: Some( |
| 69 | + solana_sdk::commitment_config::CommitmentConfig::confirmed(), |
| 70 | + ), |
| 71 | + min_context_slot: None, |
| 72 | + }, |
| 73 | + with_context: None, |
| 74 | + sort_results: None, |
| 75 | + }), |
| 76 | + ) |
| 77 | + .await?; |
| 78 | + |
| 79 | + while let Some(update) = stream.next().await { |
| 80 | + if find_message_pda(&config.wormhole_pid, update.context.slot).to_string() |
| 81 | + != update.value.pubkey |
| 82 | + { |
| 83 | + continue; // Skip updates that are not for the expected PDA |
| 84 | + } |
| 85 | + |
| 86 | + let unreliable_data: PostedMessageUnreliableData = { |
| 87 | + let data = match update.value.account.data.decode() { |
| 88 | + Some(data) => data, |
| 89 | + None => { |
| 90 | + tracing::error!("Failed to decode account data"); |
| 91 | + continue; |
| 92 | + } |
| 93 | + }; |
| 94 | + |
| 95 | + match BorshDeserialize::deserialize(&mut data.as_slice()) { |
| 96 | + Ok(data) => data, |
| 97 | + Err(e) => { |
| 98 | + tracing::error!(error = ?e, "Invalid unreliable data format"); |
| 99 | + continue; |
| 100 | + } |
| 101 | + } |
| 102 | + }; |
| 103 | + |
| 104 | + if Chain::Pythnet != unreliable_data.emitter_chain.into() { |
| 105 | + continue; |
| 106 | + } |
| 107 | + if config.accumulator_address != Pubkey::from(unreliable_data.emitter_address) { |
| 108 | + continue; |
| 109 | + } |
| 110 | + |
| 111 | + let body = Body { |
| 112 | + timestamp: unreliable_data.submission_time, |
| 113 | + nonce: unreliable_data.nonce, |
| 114 | + emitter_chain: unreliable_data.emitter_chain.into(), |
| 115 | + emitter_address: Address(unreliable_data.emitter_address), |
| 116 | + sequence: unreliable_data.sequence, |
| 117 | + consistency_level: unreliable_data.consistency_level, |
| 118 | + payload: unreliable_data.payload.clone(), |
| 119 | + }; |
| 120 | + |
| 121 | + match SignedBody::try_new(body, config.secret_key) { |
| 122 | + Ok(signed_body) => println!("Signed Body: {:?}", signed_body), |
| 123 | + Err(e) => tracing::error!(error = ?e, "Failed to sign body"), |
| 124 | + }; |
| 125 | + } |
| 126 | + |
| 127 | + tokio::spawn(async move { unsubscribe().await }); |
| 128 | + |
| 129 | + Err(PubsubClientError::ConnectionClosed( |
| 130 | + "Stream ended".to_string(), |
| 131 | + )) |
| 132 | +} |
| 133 | + |
| 134 | +fn load_secret_key(path: String) -> SecretKey { |
| 135 | + let bytes = fs::read(path.clone()).expect("Invalid secret key file"); |
| 136 | + if bytes.len() == 32 { |
| 137 | + let byte_array: [u8; 32] = bytes.try_into().expect("Invalid secret key length"); |
| 138 | + return SecretKey::from_byte_array(byte_array).expect("Invalid secret key length"); |
| 139 | + } |
| 140 | + |
| 141 | + let content = fs::read_to_string(path) |
| 142 | + .expect("Invalid secret key file") |
| 143 | + .trim() |
| 144 | + .to_string(); |
| 145 | + SecretKey::from_str(&content).expect("Invalid secret key") |
| 146 | +} |
| 147 | + |
| 148 | +#[tokio::main] |
| 149 | +async fn main() { |
| 150 | + let run_options = config::RunOptions::parse(); |
| 151 | + let secret_key = load_secret_key(run_options.secret_key_path); |
| 152 | + let client = PubsubClient::new(&run_options.pythnet_url) |
| 153 | + .await |
| 154 | + .expect("Invalid WebSocket URL"); |
| 155 | + drop(client); // Drop the client to avoid holding the connection open |
| 156 | + let accumulator_address = Pubkey::from_str("G9LV2mp9ua1znRAfYwZz5cPiJMAbo1T6mbjdQsDZuMJg") |
| 157 | + .expect("Invalid accumulator address"); |
| 158 | + let wormhole_pid = |
| 159 | + Pubkey::from_str(&run_options.wormhole_pid).expect("Invalid Wormhole program ID"); |
| 160 | + |
| 161 | + loop { |
| 162 | + if let Err(e) = run_listener(ListenerConfig { |
| 163 | + ws_url: run_options.pythnet_url.clone(), |
| 164 | + secret_key, |
| 165 | + wormhole_pid, |
| 166 | + accumulator_address, |
| 167 | + }) |
| 168 | + .await |
| 169 | + { |
| 170 | + tracing::error!(error = ?e, "Error listening to messages"); |
| 171 | + sleep(Duration::from_millis(200)).await; // Wait before retrying |
| 172 | + } |
| 173 | + } |
| 174 | +} |
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