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tendermint_coin.rs
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tendermint_coin.rs
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use super::iris::htlc::{IrisHtlc, MsgClaimHtlc, MsgCreateHtlc, HTLC_STATE_COMPLETED, HTLC_STATE_OPEN,
HTLC_STATE_REFUNDED};
use super::iris::htlc_proto::{CreateHtlcProtoRep, QueryHtlcRequestProto, QueryHtlcResponseProto};
use super::rpc::*;
use crate::coin_errors::{MyAddressError, ValidatePaymentError};
use crate::utxo::sat_from_big_decimal;
use crate::utxo::utxo_common::big_decimal_from_sat;
use crate::{big_decimal_from_sat_unsigned, BalanceError, BalanceFut, BigDecimal, CheckIfMyPaymentSentArgs,
CoinBalance, CoinFutSpawner, FeeApproxStage, FoundSwapTxSpend, HistorySyncState, MarketCoinOps, MmCoin,
NegotiateSwapContractAddrErr, PaymentInstructions, PaymentInstructionsErr, PrivKeyBuildPolicy,
PrivKeyPolicyNotAllowed, RawTransactionError, RawTransactionFut, RawTransactionRequest, RawTransactionRes,
SearchForSwapTxSpendInput, SendMakerPaymentArgs, SendMakerRefundsPaymentArgs,
SendMakerSpendsTakerPaymentArgs, SendTakerPaymentArgs, SendTakerRefundsPaymentArgs,
SendTakerSpendsMakerPaymentArgs, SignatureError, SignatureResult, SwapOps, TradeFee, TradePreimageError,
TradePreimageFut, TradePreimageResult, TradePreimageValue, TransactionDetails, TransactionEnum,
TransactionErr, TransactionFut, TransactionType, TxFeeDetails, TxMarshalingErr,
UnexpectedDerivationMethod, ValidateAddressResult, ValidateFeeArgs, ValidateInstructionsErr,
ValidateOtherPubKeyErr, ValidatePaymentFut, ValidatePaymentInput, VerificationError, VerificationResult,
WatcherOps, WatcherValidatePaymentInput, WithdrawError, WithdrawFut, WithdrawRequest};
use async_std::prelude::FutureExt as AsyncStdFutureExt;
use async_trait::async_trait;
use bitcrypto::{dhash160, sha256};
use common::executor::Timer;
use common::executor::{abortable_queue::AbortableQueue, AbortableSystem};
use common::log::warn;
use common::{get_utc_timestamp, log, now_ms, Future01CompatExt, DEX_FEE_ADDR_PUBKEY};
use cosmrs::bank::MsgSend;
use cosmrs::crypto::secp256k1::SigningKey;
use cosmrs::proto::cosmos::auth::v1beta1::{BaseAccount, QueryAccountRequest, QueryAccountResponse};
use cosmrs::proto::cosmos::bank::v1beta1::{MsgSend as MsgSendProto, QueryBalanceRequest, QueryBalanceResponse};
use cosmrs::proto::cosmos::base::tendermint::v1beta1::{GetBlockByHeightRequest, GetBlockByHeightResponse,
GetLatestBlockRequest, GetLatestBlockResponse};
use cosmrs::proto::cosmos::base::v1beta1::Coin as CoinProto;
use cosmrs::proto::cosmos::tx::v1beta1::{GetTxRequest, GetTxResponse, GetTxsEventRequest, GetTxsEventResponse,
SimulateRequest, SimulateResponse, Tx, TxBody, TxRaw};
use cosmrs::tendermint::block::Height;
use cosmrs::tendermint::chain::Id as ChainId;
use cosmrs::tendermint::PublicKey;
use cosmrs::tx::{self, Fee, Msg, Raw, SignDoc, SignerInfo};
use cosmrs::{AccountId, Any, Coin, Denom, ErrorReport};
use crypto::{privkey::key_pair_from_secret, Secp256k1Secret, StandardHDPathToCoin};
use derive_more::Display;
use futures::lock::Mutex as AsyncMutex;
use futures::{FutureExt, TryFutureExt};
use futures01::Future;
use hex::FromHexError;
use keys::KeyPair;
use mm2_core::mm_ctx::{MmArc, MmWeak};
use mm2_err_handle::prelude::*;
use mm2_number::MmNumber;
use parking_lot::Mutex as PaMutex;
use prost::{DecodeError, Message};
use rand::{thread_rng, Rng};
use rpc::v1::types::Bytes as BytesJson;
use serde_json::{self as json, Value as Json};
use std::collections::HashMap;
use std::convert::TryFrom;
use std::ops::Deref;
use std::str::FromStr;
use std::sync::{Arc, Mutex};
use std::time::Duration;
use uuid::Uuid;
// ABCI Request Paths
const ABCI_GET_LATEST_BLOCK_PATH: &str = "/cosmos.base.tendermint.v1beta1.Service/GetLatestBlock";
const ABCI_GET_BLOCK_BY_HEIGHT_PATH: &str = "/cosmos.base.tendermint.v1beta1.Service/GetBlockByHeight";
const ABCI_SIMULATE_TX_PATH: &str = "/cosmos.tx.v1beta1.Service/Simulate";
const ABCI_QUERY_ACCOUNT_PATH: &str = "/cosmos.auth.v1beta1.Query/Account";
const ABCI_QUERY_BALANCE_PATH: &str = "/cosmos.bank.v1beta1.Query/Balance";
const ABCI_GET_TX_PATH: &str = "/cosmos.tx.v1beta1.Service/GetTx";
const ABCI_QUERY_HTLC_PATH: &str = "/irismod.htlc.Query/HTLC";
const ABCI_GET_TXS_EVENT_PATH: &str = "/cosmos.tx.v1beta1.Service/GetTxsEvent";
pub(crate) const MIN_TX_SATOSHIS: i64 = 1;
// ABCI Request Defaults
const ABCI_REQUEST_HEIGHT: Option<Height> = None;
const ABCI_REQUEST_PROVE: bool = false;
/// 0.25 is good average gas price on atom and iris
const DEFAULT_GAS_PRICE: f64 = 0.25;
pub(super) const TIMEOUT_HEIGHT_DELTA: u64 = 100;
pub const GAS_LIMIT_DEFAULT: u64 = 100_000;
pub(crate) const TX_DEFAULT_MEMO: &str = "";
// https://github.com/irisnet/irismod/blob/5016c1be6fdbcffc319943f33713f4a057622f0a/modules/htlc/types/validation.go#L19-L22
const MAX_TIME_LOCK: i64 = 34560;
const MIN_TIME_LOCK: i64 = 50;
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct TendermintFeeDetails {
pub coin: String,
pub amount: BigDecimal,
pub gas_limit: u64,
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct TendermintProtocolInfo {
decimals: u8,
denom: String,
pub account_prefix: String,
chain_id: String,
gas_price: Option<f64>,
}
#[derive(Clone)]
pub struct ActivatedTokenInfo {
pub(crate) decimals: u8,
pub(crate) denom: Denom,
}
pub struct TendermintConf {
avg_blocktime: u8,
/// Derivation path of the coin.
/// This derivation path consists of `purpose` and `coin_type` only
/// where the full `BIP44` address has the following structure:
/// `m/purpose'/coin_type'/account'/change/address_index`.
derivation_path: Option<StandardHDPathToCoin>,
}
impl TendermintConf {
pub fn try_from_json(ticker: &str, conf: &Json) -> MmResult<Self, TendermintInitError> {
let avg_blocktime = conf["avg_blocktime"].as_f64().unwrap_or_default();
let avg_blocktime = (avg_blocktime * 60.0).round() as i64;
let avg_blocktime = u8::try_from(avg_blocktime).map_err(|_| TendermintInitError {
ticker: ticker.to_string(),
kind: TendermintInitErrorKind::AvgBlockTimeMissingOrInvalid,
})?;
let derivation_path = json::from_value(conf["derivation_path"].clone()).map_to_mm(|e| TendermintInitError {
ticker: ticker.to_string(),
kind: TendermintInitErrorKind::ErrorDeserializingDerivationPath(e.to_string()),
})?;
Ok(TendermintConf {
avg_blocktime,
derivation_path,
})
}
}
pub struct TendermintCoinImpl {
ticker: String,
rpc_clients: Vec<HttpClient>,
/// As seconds
avg_blocktime: u8,
/// My address
pub account_id: AccountId,
pub(super) account_prefix: String,
priv_key: Vec<u8>,
pub(crate) decimals: u8,
pub(super) denom: Denom,
chain_id: ChainId,
gas_price: Option<f64>,
pub(super) sequence_lock: AsyncMutex<()>,
pub(crate) tokens_info: PaMutex<HashMap<String, ActivatedTokenInfo>>,
/// This spawner is used to spawn coin's related futures that should be aborted on coin deactivation
/// or on [`MmArc::stop`].
pub(super) abortable_system: AbortableQueue,
pub(crate) history_sync_state: Mutex<HistorySyncState>,
pub ctx: MmWeak,
}
#[derive(Clone)]
pub struct TendermintCoin(Arc<TendermintCoinImpl>);
impl Deref for TendermintCoin {
type Target = TendermintCoinImpl;
fn deref(&self) -> &Self::Target { &self.0 }
}
#[derive(Debug)]
pub struct TendermintInitError {
pub ticker: String,
pub kind: TendermintInitErrorKind,
}
#[derive(Display, Debug)]
pub enum TendermintInitErrorKind {
Internal(String),
InvalidPrivKey(String),
CouldNotGenerateAccountId(String),
EmptyRpcUrls,
RpcClientInitError(String),
InvalidChainId(String),
InvalidDenom(String),
#[display(fmt = "'derivation_path' field is not found in config")]
DerivationPathIsNotSet,
#[display(fmt = "Error deserializing 'derivation_path': {}", _0)]
ErrorDeserializingDerivationPath(String),
PrivKeyPolicyNotAllowed(PrivKeyPolicyNotAllowed),
RpcError(String),
#[display(
fmt = "avg_blocktime missing or invalid. Value must be greater than '0' and less than less than '4.25'."
)]
AvgBlockTimeMissingOrInvalid,
}
#[derive(Display, Debug)]
pub enum TendermintCoinRpcError {
Prost(DecodeError),
InvalidResponse(String),
PerformError(String),
}
impl From<DecodeError> for TendermintCoinRpcError {
fn from(err: DecodeError) -> Self { TendermintCoinRpcError::Prost(err) }
}
impl From<TendermintCoinRpcError> for WithdrawError {
fn from(err: TendermintCoinRpcError) -> Self { WithdrawError::Transport(err.to_string()) }
}
impl From<TendermintCoinRpcError> for BalanceError {
fn from(err: TendermintCoinRpcError) -> Self {
match err {
TendermintCoinRpcError::InvalidResponse(e) => BalanceError::InvalidResponse(e),
TendermintCoinRpcError::Prost(e) => BalanceError::InvalidResponse(e.to_string()),
TendermintCoinRpcError::PerformError(e) => BalanceError::Transport(e),
}
}
}
impl From<TendermintCoinRpcError> for ValidatePaymentError {
fn from(err: TendermintCoinRpcError) -> Self {
match err {
TendermintCoinRpcError::InvalidResponse(e) => ValidatePaymentError::InvalidRpcResponse(e),
TendermintCoinRpcError::Prost(e) => ValidatePaymentError::InvalidRpcResponse(e.to_string()),
TendermintCoinRpcError::PerformError(e) => ValidatePaymentError::Transport(e),
}
}
}
#[cfg(not(target_arch = "wasm32"))]
impl From<tendermint_rpc::Error> for TendermintCoinRpcError {
fn from(err: tendermint_rpc::Error) -> Self { TendermintCoinRpcError::PerformError(err.to_string()) }
}
#[cfg(target_arch = "wasm32")]
impl From<PerformError> for TendermintCoinRpcError {
fn from(err: PerformError) -> Self { TendermintCoinRpcError::PerformError(err.to_string()) }
}
impl From<TendermintCoinRpcError> for RawTransactionError {
fn from(err: TendermintCoinRpcError) -> Self { RawTransactionError::Transport(err.to_string()) }
}
#[derive(Clone, Debug, PartialEq)]
pub struct CosmosTransaction {
pub data: cosmrs::proto::cosmos::tx::v1beta1::TxRaw,
}
impl crate::Transaction for CosmosTransaction {
fn tx_hex(&self) -> Vec<u8> { self.data.encode_to_vec() }
fn tx_hash(&self) -> BytesJson {
let bytes = self.data.encode_to_vec();
let hash = sha256(&bytes);
hash.to_vec().into()
}
}
fn account_id_from_privkey(priv_key: &[u8], prefix: &str) -> MmResult<AccountId, TendermintInitErrorKind> {
let signing_key =
SigningKey::from_bytes(priv_key).map_to_mm(|e| TendermintInitErrorKind::InvalidPrivKey(e.to_string()))?;
signing_key
.public_key()
.account_id(prefix)
.map_to_mm(|e| TendermintInitErrorKind::CouldNotGenerateAccountId(e.to_string()))
}
#[derive(Display, Debug)]
pub enum AccountIdFromPubkeyHexErr {
InvalidHexString(FromHexError),
CouldNotCreateAccountId(ErrorReport),
}
impl From<FromHexError> for AccountIdFromPubkeyHexErr {
fn from(err: FromHexError) -> Self { AccountIdFromPubkeyHexErr::InvalidHexString(err) }
}
impl From<ErrorReport> for AccountIdFromPubkeyHexErr {
fn from(err: ErrorReport) -> Self { AccountIdFromPubkeyHexErr::CouldNotCreateAccountId(err) }
}
pub fn account_id_from_pubkey_hex(prefix: &str, pubkey: &str) -> MmResult<AccountId, AccountIdFromPubkeyHexErr> {
let pubkey_bytes = hex::decode(pubkey)?;
let pubkey_hash = dhash160(&pubkey_bytes);
Ok(AccountId::new(prefix, pubkey_hash.as_slice())?)
}
#[derive(Debug, Clone, PartialEq)]
pub struct AllBalancesResult {
pub platform_balance: BigDecimal,
pub tokens_balances: HashMap<String, BigDecimal>,
}
#[derive(Debug, Display)]
enum SearchForSwapTxSpendErr {
Cosmrs(ErrorReport),
Rpc(TendermintCoinRpcError),
TxMessagesEmpty,
ClaimHtlcTxNotFound,
UnexpectedHtlcState(i32),
Proto(DecodeError),
}
impl From<ErrorReport> for SearchForSwapTxSpendErr {
fn from(e: ErrorReport) -> Self { SearchForSwapTxSpendErr::Cosmrs(e) }
}
impl From<TendermintCoinRpcError> for SearchForSwapTxSpendErr {
fn from(e: TendermintCoinRpcError) -> Self { SearchForSwapTxSpendErr::Rpc(e) }
}
impl From<DecodeError> for SearchForSwapTxSpendErr {
fn from(e: DecodeError) -> Self { SearchForSwapTxSpendErr::Proto(e) }
}
impl TendermintCoin {
pub async fn init(
ctx: &MmArc,
ticker: String,
conf: TendermintConf,
protocol_info: TendermintProtocolInfo,
rpc_urls: Vec<String>,
tx_history: bool,
priv_key_policy: PrivKeyBuildPolicy,
) -> MmResult<Self, TendermintInitError> {
if rpc_urls.is_empty() {
return MmError::err(TendermintInitError {
ticker,
kind: TendermintInitErrorKind::EmptyRpcUrls,
});
}
let priv_key = secret_from_priv_key_policy(&conf, &ticker, priv_key_policy)?;
let account_id =
account_id_from_privkey(priv_key.as_slice(), &protocol_info.account_prefix).mm_err(|kind| {
TendermintInitError {
ticker: ticker.clone(),
kind,
}
})?;
let rpc_clients: Result<Vec<HttpClient>, _> = rpc_urls
.iter()
.map(|url| {
HttpClient::new(url.as_str()).map_to_mm(|e| TendermintInitError {
ticker: ticker.clone(),
kind: TendermintInitErrorKind::RpcClientInitError(e.to_string()),
})
})
.collect();
let rpc_clients = rpc_clients?;
let chain_id = ChainId::try_from(protocol_info.chain_id).map_to_mm(|e| TendermintInitError {
ticker: ticker.clone(),
kind: TendermintInitErrorKind::InvalidChainId(e.to_string()),
})?;
let denom = Denom::from_str(&protocol_info.denom).map_to_mm(|e| TendermintInitError {
ticker: ticker.clone(),
kind: TendermintInitErrorKind::InvalidDenom(e.to_string()),
})?;
let history_sync_state = if tx_history {
HistorySyncState::NotStarted
} else {
HistorySyncState::NotEnabled
};
// Create an abortable system linked to the `MmCtx` so if the context is stopped via `MmArc::stop`,
// all spawned futures related to `TendermintCoin` will be aborted as well.
let abortable_system = ctx
.abortable_system
.create_subsystem()
.map_to_mm(|e| TendermintInitError {
ticker: ticker.clone(),
kind: TendermintInitErrorKind::Internal(e.to_string()),
})?;
Ok(TendermintCoin(Arc::new(TendermintCoinImpl {
ticker,
rpc_clients,
account_id,
account_prefix: protocol_info.account_prefix,
priv_key: priv_key.to_vec(),
decimals: protocol_info.decimals,
denom,
chain_id,
gas_price: protocol_info.gas_price,
avg_blocktime: conf.avg_blocktime,
sequence_lock: AsyncMutex::new(()),
tokens_info: PaMutex::new(HashMap::new()),
abortable_system,
history_sync_state: Mutex::new(history_sync_state),
ctx: ctx.weak(),
})))
}
// TODO
// Save one working client to the coin context, only try others once it doesn't
// work anymore.
// Also, try couple times more on health check errors.
pub(crate) async fn rpc_client(&self) -> MmResult<HttpClient, TendermintCoinRpcError> {
for rpc_client in self.rpc_clients.iter() {
match rpc_client.perform(HealthRequest).timeout(Duration::from_secs(3)).await {
Ok(Ok(_)) => return Ok(rpc_client.clone()),
Ok(Err(e)) => log::warn!(
"Recieved error from Tendermint rpc node during health check. Error: {:?}",
e
),
Err(_) => log::warn!("Tendermint rpc node: {:?} got timeout during health check", rpc_client),
};
}
MmError::err(TendermintCoinRpcError::PerformError(
"All the current rpc nodes are unavailable.".to_string(),
))
}
#[inline(always)]
fn gas_price(&self) -> f64 { self.gas_price.unwrap_or(DEFAULT_GAS_PRICE) }
#[allow(unused)]
async fn get_latest_block(&self) -> MmResult<GetLatestBlockResponse, TendermintCoinRpcError> {
let path = AbciPath::from_str(ABCI_GET_LATEST_BLOCK_PATH).expect("valid path");
let request = GetLatestBlockRequest {};
let request = AbciRequest::new(
Some(path),
request.encode_to_vec(),
ABCI_REQUEST_HEIGHT,
ABCI_REQUEST_PROVE,
);
let response = self.rpc_client().await?.perform(request).await?;
Ok(GetLatestBlockResponse::decode(response.response.value.as_slice())?)
}
#[allow(unused)]
async fn get_block_by_height(&self, height: i64) -> MmResult<GetBlockByHeightResponse, TendermintCoinRpcError> {
let path = AbciPath::from_str(ABCI_GET_BLOCK_BY_HEIGHT_PATH).expect("valid path");
let request = GetBlockByHeightRequest { height };
let request = AbciRequest::new(
Some(path),
request.encode_to_vec(),
ABCI_REQUEST_HEIGHT,
ABCI_REQUEST_PROVE,
);
let response = self.rpc_client().await?.perform(request).await?;
Ok(GetBlockByHeightResponse::decode(response.response.value.as_slice())?)
}
// We must simulate the tx on rpc nodes in order to calculate network fee.
// Right now cosmos doesn't expose any of gas price and fee informations directly.
// Therefore, we can call SimulateRequest or CheckTx(doesn't work with using Abci interface) to get used gas or fee itself.
pub(super) fn gen_simulated_tx(
&self,
account_info: BaseAccount,
tx_payload: Any,
timeout_height: u64,
memo: String,
) -> cosmrs::Result<Vec<u8>> {
let fee_amount = Coin {
denom: self.denom.clone(),
amount: 0_u64.into(),
};
let fee = Fee::from_amount_and_gas(fee_amount, GAS_LIMIT_DEFAULT);
let signkey = SigningKey::from_bytes(&self.priv_key)?;
let tx_body = tx::Body::new(vec![tx_payload], memo, timeout_height as u32);
let auth_info = SignerInfo::single_direct(Some(signkey.public_key()), account_info.sequence).auth_info(fee);
let sign_doc = SignDoc::new(&tx_body, &auth_info, &self.chain_id, account_info.account_number)?;
sign_doc.sign(&signkey)?.to_bytes()
}
/// This is converted from irismod and cosmos-sdk source codes written in golang.
/// Refs:
/// - Main algorithm: https://github.com/irisnet/irismod/blob/main/modules/htlc/types/htlc.go#L157
/// - Coins string building https://github.com/cosmos/cosmos-sdk/blob/main/types/coin.go#L210-L225
fn calculate_htlc_id(
&self,
from_address: &AccountId,
to_address: &AccountId,
amount: Vec<Coin>,
secret_hash: &[u8],
) -> String {
// Needs to be sorted if cointains multiple coins
// let mut amount = amount;
// amount.sort();
let coins_string = amount
.iter()
.map(|t| format!("{}{}", t.amount, t.denom))
.collect::<Vec<String>>()
.join(",");
let mut htlc_id = vec![];
htlc_id.extend_from_slice(secret_hash);
htlc_id.extend_from_slice(&from_address.to_bytes());
htlc_id.extend_from_slice(&to_address.to_bytes());
htlc_id.extend_from_slice(coins_string.as_bytes());
sha256(&htlc_id).to_string().to_uppercase()
}
#[allow(deprecated)]
pub(super) async fn calculate_fee(
&self,
base_denom: Denom,
tx_bytes: Vec<u8>,
) -> MmResult<Fee, TendermintCoinRpcError> {
let path = AbciPath::from_str(ABCI_SIMULATE_TX_PATH).expect("valid path");
let request = SimulateRequest { tx_bytes, tx: None };
let request = AbciRequest::new(
Some(path),
request.encode_to_vec(),
ABCI_REQUEST_HEIGHT,
ABCI_REQUEST_PROVE,
);
let response = self.rpc_client().await?.perform(request).await?;
let response = SimulateResponse::decode(response.response.value.as_slice())?;
let gas = response.gas_info.as_ref().ok_or_else(|| {
TendermintCoinRpcError::InvalidResponse(format!(
"Could not read gas_info. Invalid Response: {:?}",
response
))
})?;
let amount = ((gas.gas_used as f64 * 1.5) * self.gas_price()).ceil();
let fee_amount = Coin {
denom: base_denom,
amount: (amount as u64).into(),
};
Ok(Fee::from_amount_and_gas(fee_amount, GAS_LIMIT_DEFAULT))
}
#[allow(deprecated)]
pub(super) async fn calculate_fee_amount_as_u64(&self, tx_bytes: Vec<u8>) -> MmResult<u64, TendermintCoinRpcError> {
let path = AbciPath::from_str(ABCI_SIMULATE_TX_PATH).expect("valid path");
let request = SimulateRequest { tx_bytes, tx: None };
let request = AbciRequest::new(
Some(path),
request.encode_to_vec(),
ABCI_REQUEST_HEIGHT,
ABCI_REQUEST_PROVE,
);
let response = self.rpc_client().await?.perform(request).await?;
let response = SimulateResponse::decode(response.response.value.as_slice())?;
let gas = response.gas_info.as_ref().ok_or_else(|| {
TendermintCoinRpcError::InvalidResponse(format!(
"Could not read gas_info. Invalid Response: {:?}",
response
))
})?;
Ok(((gas.gas_used as f64 * 1.5) * self.gas_price()).ceil() as u64)
}
pub(super) async fn my_account_info(&self) -> MmResult<BaseAccount, TendermintCoinRpcError> {
let path = AbciPath::from_str(ABCI_QUERY_ACCOUNT_PATH).expect("valid path");
let request = QueryAccountRequest {
address: self.account_id.to_string(),
};
let request = AbciRequest::new(
Some(path),
request.encode_to_vec(),
ABCI_REQUEST_HEIGHT,
ABCI_REQUEST_PROVE,
);
let response = self.rpc_client().await?.perform(request).await?;
let account_response = QueryAccountResponse::decode(response.response.value.as_slice())?;
let account = account_response
.account
.or_mm_err(|| TendermintCoinRpcError::InvalidResponse("Account is None".into()))?;
Ok(BaseAccount::decode(account.value.as_slice())?)
}
pub(super) async fn balance_for_denom(&self, denom: String) -> MmResult<u64, TendermintCoinRpcError> {
let path = AbciPath::from_str(ABCI_QUERY_BALANCE_PATH).expect("valid path");
let request = QueryBalanceRequest {
address: self.account_id.to_string(),
denom,
};
let request = AbciRequest::new(
Some(path),
request.encode_to_vec(),
ABCI_REQUEST_HEIGHT,
ABCI_REQUEST_PROVE,
);
let response = self.rpc_client().await?.perform(request).await?;
let response = QueryBalanceResponse::decode(response.response.value.as_slice())?;
response
.balance
.or_mm_err(|| TendermintCoinRpcError::InvalidResponse("balance is None".into()))?
.amount
.parse()
.map_to_mm(|e| TendermintCoinRpcError::InvalidResponse(format!("balance is not u64, err {}", e)))
}
pub async fn all_balances(&self) -> MmResult<AllBalancesResult, TendermintCoinRpcError> {
let platform_balance_denom = self.balance_for_denom(self.denom.to_string()).await?;
let platform_balance = big_decimal_from_sat_unsigned(platform_balance_denom, self.decimals);
let ibc_assets_info = self.tokens_info.lock().clone();
let mut result = AllBalancesResult {
platform_balance,
tokens_balances: HashMap::new(),
};
for (ticker, info) in ibc_assets_info {
let balance_denom = self.balance_for_denom(info.denom.to_string()).await?;
let balance_decimal = big_decimal_from_sat_unsigned(balance_denom, info.decimals);
result.tokens_balances.insert(ticker, balance_decimal);
}
Ok(result)
}
fn gen_create_htlc_tx(
&self,
denom: Denom,
to: &AccountId,
amount: cosmrs::Decimal,
secret_hash: &[u8],
time_lock: u64,
) -> MmResult<IrisHtlc, TxMarshalingErr> {
let amount = vec![Coin { denom, amount }];
let timestamp = 0_u64;
let msg_payload = MsgCreateHtlc {
sender: self.account_id.clone(),
to: to.clone(),
receiver_on_other_chain: "".to_string(),
sender_on_other_chain: "".to_string(),
amount: amount.clone(),
hash_lock: hex::encode(secret_hash),
timestamp,
time_lock,
transfer: false,
};
let htlc_id = self.calculate_htlc_id(&self.account_id, to, amount, secret_hash);
Ok(IrisHtlc {
id: htlc_id,
msg_payload: msg_payload
.to_any()
.map_err(|e| MmError::new(TxMarshalingErr::InvalidInput(e.to_string())))?,
})
}
fn gen_claim_htlc_tx(&self, htlc_id: String, secret: &[u8]) -> MmResult<IrisHtlc, TxMarshalingErr> {
let msg_payload = MsgClaimHtlc {
id: htlc_id.clone(),
sender: self.account_id.clone(),
secret: hex::encode(secret),
};
Ok(IrisHtlc {
id: htlc_id,
msg_payload: msg_payload
.to_any()
.map_err(|e| MmError::new(TxMarshalingErr::InvalidInput(e.to_string())))?,
})
}
pub(super) fn any_to_signed_raw_tx(
&self,
account_info: BaseAccount,
tx_payload: Any,
fee: Fee,
timeout_height: u64,
memo: String,
) -> cosmrs::Result<Raw> {
let signkey = SigningKey::from_bytes(&self.priv_key)?;
let tx_body = tx::Body::new(vec![tx_payload], memo, timeout_height as u32);
let auth_info = SignerInfo::single_direct(Some(signkey.public_key()), account_info.sequence).auth_info(fee);
let sign_doc = SignDoc::new(&tx_body, &auth_info, &self.chain_id, account_info.account_number)?;
sign_doc.sign(&signkey)
}
pub fn add_activated_token_info(&self, ticker: String, decimals: u8, denom: Denom) {
self.tokens_info
.lock()
.insert(ticker, ActivatedTokenInfo { decimals, denom });
}
fn estimate_blocks_from_duration(&self, duration: u64) -> i64 {
let estimated_time_lock = (duration / self.avg_blocktime as u64) as i64;
estimated_time_lock.clamp(MIN_TIME_LOCK, MAX_TIME_LOCK)
}
pub(crate) fn check_if_my_payment_sent_for_denom(
&self,
decimals: u8,
denom: Denom,
other_pub: &[u8],
secret_hash: &[u8],
amount: &BigDecimal,
) -> Box<dyn Future<Item = Option<TransactionEnum>, Error = String> + Send> {
let amount = try_fus!(sat_from_big_decimal(amount, decimals));
let amount = vec![Coin {
denom,
amount: amount.into(),
}];
let pubkey_hash = dhash160(other_pub);
let to_address = try_fus!(AccountId::new(&self.account_prefix, pubkey_hash.as_slice()));
let htlc_id = self.calculate_htlc_id(&self.account_id, &to_address, amount, secret_hash);
let coin = self.clone();
let fut = async move {
let htlc_response = try_s!(coin.query_htlc(htlc_id.clone()).await);
let htlc_data = match htlc_response.htlc {
Some(htlc) => htlc,
None => return Ok(None),
};
match htlc_data.state {
HTLC_STATE_OPEN | HTLC_STATE_COMPLETED | HTLC_STATE_REFUNDED => {},
unexpected_state => return Err(format!("Unexpected state for HTLC {}", unexpected_state)),
};
let rpc_client = try_s!(coin.rpc_client().await);
let q = format!("create_htlc.id = '{}'", htlc_id);
let response = try_s!(
// Search single tx
rpc_client
.perform(TxSearchRequest::new(
q,
false,
1,
1,
TendermintResultOrder::Descending.into()
))
.await
);
if let Some(tx) = response.txs.first() {
if let cosmrs::tendermint::abci::Code::Err(err_code) = tx.tx_result.code {
return Err(format!(
"Got {} error code. Broadcasted HTLC likely isn't valid.",
err_code
));
}
let deserialized_tx = try_s!(cosmrs::Tx::from_bytes(tx.tx.as_bytes()));
let msg = try_s!(deserialized_tx.body.messages.first().ok_or("Tx body couldn't be read."));
let htlc = try_s!(CreateHtlcProtoRep::decode(msg.value.as_slice()));
if htlc.hash_lock.to_uppercase() == htlc_data.hash_lock.to_uppercase() {
let htlc = TransactionEnum::CosmosTransaction(CosmosTransaction {
data: try_s!(TxRaw::decode(tx.tx.as_bytes())),
});
return Ok(Some(htlc));
}
}
Ok(None)
};
Box::new(fut.boxed().compat())
}
pub(super) fn send_htlc_for_denom(
&self,
time_lock_duration: u64,
other_pub: &[u8],
secret_hash: &[u8],
amount: BigDecimal,
denom: Denom,
decimals: u8,
) -> TransactionFut {
let pubkey_hash = dhash160(other_pub);
let to = try_tx_fus!(AccountId::new(&self.account_prefix, pubkey_hash.as_slice()));
let amount_as_u64 = try_tx_fus!(sat_from_big_decimal(&amount, decimals));
let amount = cosmrs::Decimal::from(amount_as_u64);
let secret_hash = secret_hash.to_vec();
let coin = self.clone();
let fut = async move {
let time_lock = coin.estimate_blocks_from_duration(time_lock_duration);
let create_htlc_tx = try_tx_s!(coin.gen_create_htlc_tx(denom, &to, amount, &secret_hash, time_lock as u64));
let _sequence_lock = coin.sequence_lock.lock().await;
let current_block = try_tx_s!(coin.current_block().compat().await);
let timeout_height = current_block + TIMEOUT_HEIGHT_DELTA;
let account_info = try_tx_s!(coin.my_account_info().await);
let simulated_tx = try_tx_s!(coin.gen_simulated_tx(
account_info.clone(),
create_htlc_tx.msg_payload.clone(),
timeout_height,
TX_DEFAULT_MEMO.into(),
));
let fee = try_tx_s!(coin.calculate_fee(coin.denom.clone(), simulated_tx).await);
let tx_raw = try_tx_s!(coin.any_to_signed_raw_tx(
account_info.clone(),
create_htlc_tx.msg_payload.clone(),
fee,
timeout_height,
TX_DEFAULT_MEMO.into(),
));
let _tx_id = try_tx_s!(coin.send_raw_tx_bytes(&try_tx_s!(tx_raw.to_bytes())).compat().await);
Ok(TransactionEnum::CosmosTransaction(CosmosTransaction {
data: tx_raw.into(),
}))
};
Box::new(fut.boxed().compat())
}
pub(super) fn send_taker_fee_for_denom(
&self,
fee_addr: &[u8],
amount: BigDecimal,
denom: Denom,
decimals: u8,
uuid: &[u8],
) -> TransactionFut {
let memo = try_tx_fus!(Uuid::from_slice(uuid)).to_string();
let from_address = self.account_id.clone();
let pubkey_hash = dhash160(fee_addr);
let to_address = try_tx_fus!(AccountId::new(&self.account_prefix, pubkey_hash.as_slice()));
let amount_as_u64 = try_tx_fus!(sat_from_big_decimal(&amount, decimals));
let amount = cosmrs::Decimal::from(amount_as_u64);
let amount = vec![Coin { denom, amount }];
let tx_payload = try_tx_fus!(MsgSend {
from_address,
to_address,
amount,
}
.to_any());
let coin = self.clone();
let fut = async move {
let _sequence_lock = coin.sequence_lock.lock().await;
let account_info = try_tx_s!(coin.my_account_info().await);
let current_block = try_tx_s!(coin.current_block().compat().await.map_to_mm(WithdrawError::Transport));
let timeout_height = current_block + TIMEOUT_HEIGHT_DELTA;
let simulated_tx = try_tx_s!(coin.gen_simulated_tx(
account_info.clone(),
tx_payload.clone(),
timeout_height,
TX_DEFAULT_MEMO.into(),
));
let fee = try_tx_s!(coin.calculate_fee(coin.denom.clone(), simulated_tx).await);
let tx_raw = try_tx_s!(coin
.any_to_signed_raw_tx(account_info, tx_payload, fee, timeout_height, memo)
.map_to_mm(|e| WithdrawError::InternalError(e.to_string())));
let tx_bytes = try_tx_s!(tx_raw
.to_bytes()
.map_to_mm(|e| WithdrawError::InternalError(e.to_string())));
let _tx_id = try_tx_s!(coin.send_raw_tx_bytes(&tx_bytes).compat().await);
Ok(TransactionEnum::CosmosTransaction(CosmosTransaction {
data: tx_raw.into(),
}))
};
Box::new(fut.boxed().compat())
}
#[allow(clippy::too_many_arguments)]
pub(super) fn validate_fee_for_denom(
&self,
fee_tx: &TransactionEnum,
expected_sender: &[u8],
fee_addr: &[u8],
amount: &BigDecimal,
decimals: u8,
uuid: &[u8],
denom: String,
) -> Box<dyn Future<Item = (), Error = String> + Send> {
let tx = match fee_tx {
TransactionEnum::CosmosTransaction(tx) => tx.clone(),
invalid_variant => {
return Box::new(futures01::future::err(ERRL!(
"Unexpected tx variant {:?}",
invalid_variant
)))
},
};
let uuid = try_fus!(Uuid::from_slice(uuid)).to_string();
let sender_pubkey_hash = dhash160(expected_sender);
let expected_sender_address =
try_fus!(AccountId::new(&self.account_prefix, sender_pubkey_hash.as_slice())).to_string();
let dex_fee_addr_pubkey_hash = dhash160(fee_addr);
let expected_dex_fee_address = try_fus!(AccountId::new(
&self.account_prefix,
dex_fee_addr_pubkey_hash.as_slice()
))
.to_string();
let expected_amount = try_fus!(sat_from_big_decimal(amount, decimals));
let expected_amount = CoinProto {
denom,
amount: expected_amount.to_string(),
};
let coin = self.clone();
let fut = async move {
let tx_body = try_s!(TxBody::decode(tx.data.body_bytes.as_slice()));
if tx_body.messages.len() != 1 {
return ERR!("Tx body must have exactly one message");
}
let msg = try_s!(MsgSendProto::decode(tx_body.messages[0].value.as_slice()));
if msg.to_address != expected_dex_fee_address {
return ERR!(
"Dex fee is sent to wrong address: {}, expected {}",
msg.to_address,
expected_dex_fee_address
);
}
if msg.amount.len() != 1 {
return ERR!("Msg must have exactly one Coin");
}
if msg.amount[0] != expected_amount {
return ERR!("Invalid amount {:?}, expected {:?}", msg.amount[0], expected_amount);
}
if msg.from_address != expected_sender_address {
return ERR!(
"Invalid sender: {}, expected {}",
msg.from_address,
expected_sender_address
);
}
if tx_body.memo != uuid {
return ERR!("Invalid memo: {}, expected {}", msg.from_address, uuid);
}
let encoded_tx = tx.data.encode_to_vec();
let hash = hex::encode_upper(sha256(&encoded_tx).as_slice());
let encoded_from_rpc = try_s!(coin.request_tx(hash).await).encode_to_vec();
if encoded_tx != encoded_from_rpc {
return ERR!("Transaction from RPC doesn't match the input");
}
Ok(())
};
Box::new(fut.boxed().compat())
}
pub(super) fn validate_payment_for_denom(
&self,
input: ValidatePaymentInput,
denom: Denom,
decimals: u8,
) -> ValidatePaymentFut<()> {
let coin = self.clone();
let fut = async move {
let tx = cosmrs::Tx::from_bytes(&input.payment_tx)
.map_to_mm(|e| ValidatePaymentError::TxDeserializationError(e.to_string()))?;
if tx.body.messages.len() != 1 {
return MmError::err(ValidatePaymentError::WrongPaymentTx(
"Payment tx must have exactly one message".into(),
));