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Reorganise modules for multiple database implementations

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This commit is contained in:
rishflab 2021-09-22 16:14:49 +10:00
parent 0e4891fcc0
commit a94c320021
15 changed files with 464 additions and 453 deletions
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6
swap/src/asb/event_loop.rs
View File

@ -1,5 +1,5 @@
use crate::asb::{Behaviour, OutEvent, Rate};
use crate::database::Database;
use crate::database::SledDatabase;
use crate::network::quote::BidQuote;
use crate::network::swap_setup::alice::WalletSnapshot;
use crate::network::transfer_proof;
@ -39,7 +39,7 @@ where
env_config: env::Config,
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,
db: Arc<Database>,
db: Arc<SledDatabase>,
latest_rate: LR,
min_buy: bitcoin::Amount,
max_buy: bitcoin::Amount,
@ -71,7 +71,7 @@ where
env_config: env::Config,
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,
db: Arc<Database>,
db: Arc<SledDatabase>,
latest_rate: LR,
min_buy: bitcoin::Amount,
max_buy: bitcoin::Amount,

4
swap/src/asb/recovery/cancel.rs
View File

@ -1,5 +1,5 @@
use crate::bitcoin::{parse_rpc_error_code, RpcErrorCode, Txid, Wallet};
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::protocol::alice::AliceState;
use anyhow::{bail, Result};
use std::sync::Arc;
@ -8,7 +8,7 @@ use uuid::Uuid;
pub async fn cancel(
swap_id: Uuid,
bitcoin_wallet: Arc<Wallet>,
db: Arc<Database>,
db: Arc<SledDatabase>,
) -> Result<(Txid, AliceState)> {
let state = db.get_state(swap_id)?.try_into_alice()?.into();

4
swap/src/asb/recovery/punish.rs
View File

@ -1,5 +1,5 @@
use crate::bitcoin::{self, Txid};
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::protocol::alice::AliceState;
use anyhow::{bail, Result};
use std::sync::Arc;
@ -14,7 +14,7 @@ pub enum Error {
pub async fn punish(
swap_id: Uuid,
bitcoin_wallet: Arc<bitcoin::Wallet>,
db: Arc<Database>,
db: Arc<SledDatabase>,
) -> Result<(Txid, AliceState)> {
let state = db.get_state(swap_id)?.try_into_alice()?.into();

4
swap/src/asb/recovery/redeem.rs
View File

@ -1,5 +1,5 @@
use crate::bitcoin::{Txid, Wallet};
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::protocol::alice::AliceState;
use anyhow::{bail, Result};
use std::sync::Arc;
@ -23,7 +23,7 @@ impl Finality {
pub async fn redeem(
swap_id: Uuid,
bitcoin_wallet: Arc<Wallet>,
db: Arc<Database>,
db: Arc<SledDatabase>,
finality: Finality,
) -> Result<(Txid, AliceState)> {
let state = db.get_state(swap_id)?.try_into_alice()?.into();

4
swap/src/asb/recovery/refund.rs
View File

@ -1,5 +1,5 @@
use crate::bitcoin::{self};
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::monero;
use crate::protocol::alice::AliceState;
use anyhow::{bail, Result};
@ -26,7 +26,7 @@ pub async fn refund(
swap_id: Uuid,
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,
db: Arc<Database>,
db: Arc<SledDatabase>,
) -> Result<AliceState> {
let state = db.get_state(swap_id)?.try_into_alice()?.into();

4
swap/src/asb/recovery/safely_abort.rs
View File

@ -1,10 +1,10 @@
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::protocol::alice::AliceState;
use anyhow::{bail, Result};
use std::sync::Arc;
use uuid::Uuid;
pub async fn safely_abort(swap_id: Uuid, db: Arc<Database>) -> Result<AliceState> {
pub async fn safely_abort(swap_id: Uuid, db: Arc<SledDatabase>) -> Result<AliceState> {
let state = db.get_state(swap_id)?.try_into_alice()?.into();
match state {

4
swap/src/bin/asb.rs
View File

@ -28,7 +28,7 @@ use swap::asb::config::{
initial_setup, query_user_for_initial_config, read_config, Config, ConfigNotInitialized,
};
use swap::asb::{cancel, punish, redeem, refund, safely_abort, EventLoop, Finality, KrakenRate};
use swap::database::Database;
use swap::database::SledDatabase;
use swap::monero::Amount;
use swap::network::rendezvous::XmrBtcNamespace;
use swap::network::swarm;
@ -92,7 +92,7 @@ async fn main() -> Result<()> {
let db_path = config.data.dir.join("database");
let db = Database::open(config.data.dir.join(db_path).as_path())
let db = SledDatabase::open(config.data.dir.join(db_path).as_path())
.context("Could not open database")?;
let seed =

12
swap/src/bin/swap.rs
View File

@ -25,7 +25,7 @@ use std::time::Duration;
use swap::bitcoin::TxLock;
use swap::cli::command::{parse_args_and_apply_defaults, Arguments, Command, ParseResult};
use swap::cli::{list_sellers, EventLoop, SellerStatus};
use swap::database::Database;
use swap::database::SledDatabase;
use swap::env::Config;
use swap::libp2p_ext::MultiAddrExt;
use swap::network::quote::BidQuote;
@ -66,7 +66,7 @@ async fn main() -> Result<()> {
let swap_id = Uuid::new_v4();
cli::tracing::init(debug, json, data_dir.join("logs"), Some(swap_id))?;
let db = Database::open(data_dir.join("database").as_path())
let db = SledDatabase::open(data_dir.join("database").as_path())
.context("Failed to open database")?;
let seed = Seed::from_file_or_generate(data_dir.as_path())
.context("Failed to read in seed file")?;
@ -139,7 +139,7 @@ async fn main() -> Result<()> {
}
}
Command::History => {
let db = Database::open(data_dir.join("database").as_path())
let db = SledDatabase::open(data_dir.join("database").as_path())
.context("Failed to open database")?;
let mut table = Table::new();
@ -215,7 +215,7 @@ async fn main() -> Result<()> {
tor_socks5_port,
} => {
cli::tracing::init(debug, json, data_dir.join("logs"), Some(swap_id))?;
let db = Database::open(data_dir.join("database").as_path())
let db = SledDatabase::open(data_dir.join("database").as_path())
.context("Failed to open database")?;
let seed = Seed::from_file_or_generate(data_dir.as_path())
.context("Failed to read in seed file")?;
@ -277,7 +277,7 @@ async fn main() -> Result<()> {
bitcoin_target_block,
} => {
cli::tracing::init(debug, json, data_dir.join("logs"), Some(swap_id))?;
let db = Database::open(data_dir.join("database").as_path())
let db = SledDatabase::open(data_dir.join("database").as_path())
.context("Failed to open database")?;
let seed = Seed::from_file_or_generate(data_dir.as_path())
.context("Failed to read in seed file")?;
@ -300,7 +300,7 @@ async fn main() -> Result<()> {
bitcoin_target_block,
} => {
cli::tracing::init(debug, json, data_dir.join("logs"), Some(swap_id))?;
let db = Database::open(data_dir.join("database").as_path())
let db = SledDatabase::open(data_dir.join("database").as_path())
.context("Failed to open database")?;
let seed = Seed::from_file_or_generate(data_dir.as_path())
.context("Failed to read in seed file")?;

4
swap/src/cli/cancel.rs
View File

@ -1,5 +1,5 @@
use crate::bitcoin::{parse_rpc_error_code, RpcErrorCode, Txid, Wallet};
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::protocol::bob::BobState;
use anyhow::{bail, Result};
use std::sync::Arc;
@ -8,7 +8,7 @@ use uuid::Uuid;
pub async fn cancel(
swap_id: Uuid,
bitcoin_wallet: Arc<Wallet>,
db: Database,
db: SledDatabase,
) -> Result<(Txid, BobState)> {
let state = db.get_state(swap_id)?.try_into_bob()?.into();

8
swap/src/cli/refund.rs
View File

@ -1,11 +1,15 @@
use crate::bitcoin::Wallet;
use crate::database::{Database, Swap};
use crate::database::{SledDatabase, Swap};
use crate::protocol::bob::BobState;
use anyhow::{bail, Result};
use std::sync::Arc;
use uuid::Uuid;
pub async fn refund(swap_id: Uuid, bitcoin_wallet: Arc<Wallet>, db: Database) -> Result<BobState> {
pub async fn refund(
swap_id: Uuid,
bitcoin_wallet: Arc<Wallet>,
db: SledDatabase,
) -> Result<BobState> {
let state = db.get_state(swap_id)?.try_into_bob()?.into();
let state6 = match state {

421
swap/src/database.rs
View File

@ -1,18 +1,14 @@
pub use self::sled::SledDatabase;
pub use alice::Alice;
pub use bob::Bob;
use anyhow::{anyhow, bail, Context, Result};
use itertools::Itertools;
use libp2p::{Multiaddr, PeerId};
use serde::de::DeserializeOwned;
use anyhow::{bail, Result};
use serde::{Deserialize, Serialize};
use std::fmt::Display;
use std::path::Path;
use std::str::FromStr;
use uuid::Uuid;
mod alice;
mod bob;
mod sled;
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
pub enum Swap {
@ -64,414 +60,3 @@ impl Swap {
}
}
}
pub struct Database {
swaps: sled::Tree,
peers: sled::Tree,
addresses: sled::Tree,
monero_addresses: sled::Tree,
}
impl Database {
pub fn open(path: &Path) -> Result<Self> {
tracing::debug!("Opening database at {}", path.display());
let db =
sled::open(path).with_context(|| format!("Could not open the DB at {:?}", path))?;
let swaps = db.open_tree("swaps")?;
let peers = db.open_tree("peers")?;
let addresses = db.open_tree("addresses")?;
let monero_addresses = db.open_tree("monero_addresses")?;
Ok(Database {
swaps,
peers,
addresses,
monero_addresses,
})
}
pub async fn insert_peer_id(&self, swap_id: Uuid, peer_id: PeerId) -> Result<()> {
let peer_id_str = peer_id.to_string();
let key = serialize(&swap_id)?;
let value = serialize(&peer_id_str).context("Could not serialize peer-id")?;
self.peers.insert(key, value)?;
self.peers
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_peer_id(&self, swap_id: Uuid) -> Result<PeerId> {
let key = serialize(&swap_id)?;
let encoded = self
.peers
.get(&key)?
.ok_or_else(|| anyhow!("No peer-id found for swap id {} in database", swap_id))?;
let peer_id: String = deserialize(&encoded).context("Could not deserialize peer-id")?;
Ok(PeerId::from_str(peer_id.as_str())?)
}
pub async fn insert_monero_address(
&self,
swap_id: Uuid,
address: monero::Address,
) -> Result<()> {
let key = swap_id.as_bytes();
let value = serialize(&address)?;
self.monero_addresses.insert(key, value)?;
self.monero_addresses
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_monero_address(&self, swap_id: Uuid) -> Result<monero::Address> {
let encoded = self
.monero_addresses
.get(swap_id.as_bytes())?
.ok_or_else(|| {
anyhow!(
"No Monero address found for swap id {} in database",
swap_id
)
})?;
let monero_address = deserialize(&encoded)?;
Ok(monero_address)
}
pub async fn insert_address(&self, peer_id: PeerId, address: Multiaddr) -> Result<()> {
let key = peer_id.to_bytes();
let existing_addresses = self.addresses.get(&key)?;
let new_addresses = {
let existing_addresses = existing_addresses.clone();
Some(match existing_addresses {
Some(encoded) => {
let mut addresses = deserialize::<Vec<Multiaddr>>(&encoded)?;
addresses.push(address);
serialize(&addresses)?
}
None => serialize(&[address])?,
})
};
self.addresses
.compare_and_swap(key, existing_addresses, new_addresses)??;
self.addresses
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_addresses(&self, peer_id: PeerId) -> Result<Vec<Multiaddr>> {
let key = peer_id.to_bytes();
let addresses = match self.addresses.get(&key)? {
Some(encoded) => deserialize(&encoded).context("Failed to deserialize addresses")?,
None => vec![],
};
Ok(addresses)
}
pub async fn insert_latest_state(&self, swap_id: Uuid, state: Swap) -> Result<()> {
let key = serialize(&swap_id)?;
let new_value = serialize(&state).context("Could not serialize new state value")?;
let old_value = self.swaps.get(&key)?;
self.swaps
.compare_and_swap(key, old_value, Some(new_value))
.context("Could not write in the DB")?
.context("Stored swap somehow changed, aborting saving")?;
self.swaps
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_state(&self, swap_id: Uuid) -> Result<Swap> {
let key = serialize(&swap_id)?;
let encoded = self
.swaps
.get(&key)?
.ok_or_else(|| anyhow!("Swap with id {} not found in database", swap_id))?;
let state = deserialize(&encoded).context("Could not deserialize state")?;
Ok(state)
}
pub fn all_alice(&self) -> Result<Vec<(Uuid, Alice)>> {
self.all_alice_iter().collect()
}
fn all_alice_iter(&self) -> impl Iterator<Item = Result<(Uuid, Alice)>> {
self.all_swaps_iter().map(|item| {
let (swap_id, swap) = item?;
Ok((swap_id, swap.try_into_alice()?))
})
}
pub fn all_bob(&self) -> Result<Vec<(Uuid, Bob)>> {
self.all_bob_iter().collect()
}
fn all_bob_iter(&self) -> impl Iterator<Item = Result<(Uuid, Bob)>> {
self.all_swaps_iter().map(|item| {
let (swap_id, swap) = item?;
Ok((swap_id, swap.try_into_bob()?))
})
}
fn all_swaps_iter(&self) -> impl Iterator<Item = Result<(Uuid, Swap)>> {
self.swaps.iter().map(|item| {
let (key, value) = item.context("Failed to retrieve swap from DB")?;
let swap_id = deserialize::<Uuid>(&key)?;
let swap = deserialize::<Swap>(&value).context("Failed to deserialize swap")?;
Ok((swap_id, swap))
})
}
pub fn unfinished_alice(&self) -> Result<Vec<(Uuid, Alice)>> {
self.all_alice_iter()
.filter_ok(|(_swap_id, alice)| !matches!(alice, Alice::Done(_)))
.collect()
}
}
pub fn serialize<T>(t: &T) -> Result<Vec<u8>>
where
T: Serialize,
{
Ok(serde_cbor::to_vec(t)?)
}
pub fn deserialize<T>(v: &[u8]) -> Result<T>
where
T: DeserializeOwned,
{
Ok(serde_cbor::from_slice(&v)?)
}
#[cfg(test)]
mod tests {
use super::*;
use crate::database::alice::{Alice, AliceEndState};
use crate::database::bob::{Bob, BobEndState};
#[tokio::test]
async fn can_write_and_read_to_multiple_keys() {
let db_dir = tempfile::tempdir().unwrap();
let db = Database::open(db_dir.path()).unwrap();
let state_1 = Swap::Alice(Alice::Done(AliceEndState::BtcRedeemed));
let swap_id_1 = Uuid::new_v4();
db.insert_latest_state(swap_id_1, state_1.clone())
.await
.expect("Failed to save second state");
let state_2 = Swap::Bob(Bob::Done(BobEndState::SafelyAborted));
let swap_id_2 = Uuid::new_v4();
db.insert_latest_state(swap_id_2, state_2.clone())
.await
.expect("Failed to save first state");
let recovered_1 = db
.get_state(swap_id_1)
.expect("Failed to recover first state");
let recovered_2 = db
.get_state(swap_id_2)
.expect("Failed to recover second state");
assert_eq!(recovered_1, state_1);
assert_eq!(recovered_2, state_2);
}
#[tokio::test]
async fn can_write_twice_to_one_key() {
let db_dir = tempfile::tempdir().unwrap();
let db = Database::open(db_dir.path()).unwrap();
let state = Swap::Alice(Alice::Done(AliceEndState::SafelyAborted));
let swap_id = Uuid::new_v4();
db.insert_latest_state(swap_id, state.clone())
.await
.expect("Failed to save state the first time");
let recovered = db
.get_state(swap_id)
.expect("Failed to recover state the first time");
// We insert and recover twice to ensure database implementation allows the
// caller to write to an existing key
db.insert_latest_state(swap_id, recovered)
.await
.expect("Failed to save state the second time");
let recovered = db
.get_state(swap_id)
.expect("Failed to recover state the second time");
assert_eq!(recovered, state);
}
#[tokio::test]
async fn all_swaps_as_alice() {
let db_dir = tempfile::tempdir().unwrap();
let db = Database::open(db_dir.path()).unwrap();
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state.clone());
let alice_swap_id = Uuid::new_v4();
db.insert_latest_state(alice_swap_id, alice_swap)
.await
.expect("Failed to save alice state 1");
let alice_swaps = db.all_alice().unwrap();
assert_eq!(alice_swaps.len(), 1);
assert!(alice_swaps.contains(&(alice_swap_id, alice_state)));
let bob_state = Bob::Done(BobEndState::SafelyAborted);
let bob_swap = Swap::Bob(bob_state);
let bob_swap_id = Uuid::new_v4();
db.insert_latest_state(bob_swap_id, bob_swap)
.await
.expect("Failed to save bob state 1");
let err = db.all_alice().unwrap_err();
assert_eq!(err.downcast_ref::<NotAlice>().unwrap(), &NotAlice);
}
#[tokio::test]
async fn all_swaps_as_bob() {
let db_dir = tempfile::tempdir().unwrap();
let db = Database::open(db_dir.path()).unwrap();
let bob_state = Bob::Done(BobEndState::SafelyAborted);
let bob_swap = Swap::Bob(bob_state.clone());
let bob_swap_id = Uuid::new_v4();
db.insert_latest_state(bob_swap_id, bob_swap)
.await
.expect("Failed to save bob state 1");
let bob_swaps = db.all_bob().unwrap();
assert_eq!(bob_swaps.len(), 1);
assert!(bob_swaps.contains(&(bob_swap_id, bob_state)));
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state);
let alice_swap_id = Uuid::new_v4();
db.insert_latest_state(alice_swap_id, alice_swap)
.await
.expect("Failed to save alice state 1");
let err = db.all_bob().unwrap_err();
assert_eq!(err.downcast_ref::<NotBob>().unwrap(), &NotBob);
}
#[tokio::test]
async fn can_save_swap_state_and_peer_id_with_same_swap_id() -> Result<()> {
let db_dir = tempfile::tempdir().unwrap();
let db = Database::open(db_dir.path()).unwrap();
let alice_id = Uuid::new_v4();
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state);
let peer_id = PeerId::random();
db.insert_latest_state(alice_id, alice_swap.clone()).await?;
db.insert_peer_id(alice_id, peer_id).await?;
let loaded_swap = db.get_state(alice_id)?;
let loaded_peer_id = db.get_peer_id(alice_id)?;
assert_eq!(alice_swap, loaded_swap);
assert_eq!(peer_id, loaded_peer_id);
Ok(())
}
#[tokio::test]
async fn test_reopen_db() -> Result<()> {
let db_dir = tempfile::tempdir().unwrap();
let alice_id = Uuid::new_v4();
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state);
let peer_id = PeerId::random();
{
let db = Database::open(db_dir.path()).unwrap();
db.insert_latest_state(alice_id, alice_swap.clone()).await?;
db.insert_peer_id(alice_id, peer_id).await?;
}
let db = Database::open(db_dir.path()).unwrap();
let loaded_swap = db.get_state(alice_id)?;
let loaded_peer_id = db.get_peer_id(alice_id)?;
assert_eq!(alice_swap, loaded_swap);
assert_eq!(peer_id, loaded_peer_id);
Ok(())
}
#[tokio::test]
async fn save_and_load_addresses() -> Result<()> {
let db_dir = tempfile::tempdir()?;
let peer_id = PeerId::random();
let home1 = "/ip4/127.0.0.1/tcp/1".parse::<Multiaddr>()?;
let home2 = "/ip4/127.0.0.1/tcp/2".parse::<Multiaddr>()?;
{
let db = Database::open(db_dir.path())?;
db.insert_address(peer_id, home1.clone()).await?;
db.insert_address(peer_id, home2.clone()).await?;
}
let addresses = Database::open(db_dir.path())?.get_addresses(peer_id)?;
assert_eq!(addresses, vec![home1, home2]);
Ok(())
}
#[tokio::test]
async fn save_and_load_monero_address() -> Result<()> {
let db_dir = tempfile::tempdir()?;
let swap_id = Uuid::new_v4();
Database::open(db_dir.path())?.insert_monero_address(swap_id, "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a".parse()?).await?;
let loaded_monero_address = Database::open(db_dir.path())?.get_monero_address(swap_id)?;
assert_eq!(loaded_monero_address.to_string(), "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a");
Ok(())
}
}

422
swap/src/database/sled.rs Normal file
View File

@ -0,0 +1,422 @@
use crate::database::{Alice, Bob, Swap};
use anyhow::{anyhow, Context, Result};
use itertools::Itertools;
use libp2p::{Multiaddr, PeerId};
use serde::de::DeserializeOwned;
use serde::Serialize;
use std::path::Path;
use std::str::FromStr;
use uuid::Uuid;
pub struct SledDatabase {
swaps: sled::Tree,
peers: sled::Tree,
addresses: sled::Tree,
monero_addresses: sled::Tree,
}
impl SledDatabase {
pub fn open(path: &Path) -> Result<Self> {
tracing::debug!("Opening database at {}", path.display());
let db =
sled::open(path).with_context(|| format!("Could not open the DB at {:?}", path))?;
let swaps = db.open_tree("swaps")?;
let peers = db.open_tree("peers")?;
let addresses = db.open_tree("addresses")?;
let monero_addresses = db.open_tree("monero_addresses")?;
Ok(SledDatabase {
swaps,
peers,
addresses,
monero_addresses,
})
}
pub async fn insert_peer_id(&self, swap_id: Uuid, peer_id: PeerId) -> Result<()> {
let peer_id_str = peer_id.to_string();
let key = serialize(&swap_id)?;
let value = serialize(&peer_id_str).context("Could not serialize peer-id")?;
self.peers.insert(key, value)?;
self.peers
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_peer_id(&self, swap_id: Uuid) -> Result<PeerId> {
let key = serialize(&swap_id)?;
let encoded = self
.peers
.get(&key)?
.ok_or_else(|| anyhow!("No peer-id found for swap id {} in database", swap_id))?;
let peer_id: String = deserialize(&encoded).context("Could not deserialize peer-id")?;
Ok(PeerId::from_str(peer_id.as_str())?)
}
pub async fn insert_monero_address(
&self,
swap_id: Uuid,
address: monero::Address,
) -> Result<()> {
let key = swap_id.as_bytes();
let value = serialize(&address)?;
self.monero_addresses.insert(key, value)?;
self.monero_addresses
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_monero_address(&self, swap_id: Uuid) -> Result<monero::Address> {
let encoded = self
.monero_addresses
.get(swap_id.as_bytes())?
.ok_or_else(|| {
anyhow!(
"No Monero address found for swap id {} in database",
swap_id
)
})?;
let monero_address = deserialize(&encoded)?;
Ok(monero_address)
}
pub async fn insert_address(&self, peer_id: PeerId, address: Multiaddr) -> Result<()> {
let key = peer_id.to_bytes();
let existing_addresses = self.addresses.get(&key)?;
let new_addresses = {
let existing_addresses = existing_addresses.clone();
Some(match existing_addresses {
Some(encoded) => {
let mut addresses = deserialize::<Vec<Multiaddr>>(&encoded)?;
addresses.push(address);
serialize(&addresses)?
}
None => serialize(&[address])?,
})
};
self.addresses
.compare_and_swap(key, existing_addresses, new_addresses)??;
self.addresses
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_addresses(&self, peer_id: PeerId) -> Result<Vec<Multiaddr>> {
let key = peer_id.to_bytes();
let addresses = match self.addresses.get(&key)? {
Some(encoded) => deserialize(&encoded).context("Failed to deserialize addresses")?,
None => vec![],
};
Ok(addresses)
}
pub async fn insert_latest_state(&self, swap_id: Uuid, state: Swap) -> Result<()> {
let key = serialize(&swap_id)?;
let new_value = serialize(&state).context("Could not serialize new state value")?;
let old_value = self.swaps.get(&key)?;
self.swaps
.compare_and_swap(key, old_value, Some(new_value))
.context("Could not write in the DB")?
.context("Stored swap somehow changed, aborting saving")?;
self.swaps
.flush_async()
.await
.map(|_| ())
.context("Could not flush db")
}
pub fn get_state(&self, swap_id: Uuid) -> Result<Swap> {
let key = serialize(&swap_id)?;
let encoded = self
.swaps
.get(&key)?
.ok_or_else(|| anyhow!("Swap with id {} not found in database", swap_id))?;
let state = deserialize(&encoded).context("Could not deserialize state")?;
Ok(state)
}
pub fn all_alice(&self) -> Result<Vec<(Uuid, Alice)>> {
self.all_alice_iter().collect()
}
fn all_alice_iter(&self) -> impl Iterator<Item = Result<(Uuid, Alice)>> {
self.all_swaps_iter().map(|item| {
let (swap_id, swap) = item?;
Ok((swap_id, swap.try_into_alice()?))
})
}
pub fn all_bob(&self) -> Result<Vec<(Uuid, Bob)>> {
self.all_bob_iter().collect()
}
fn all_bob_iter(&self) -> impl Iterator<Item = Result<(Uuid, Bob)>> {
self.all_swaps_iter().map(|item| {
let (swap_id, swap) = item?;
Ok((swap_id, swap.try_into_bob()?))
})
}
fn all_swaps_iter(&self) -> impl Iterator<Item = Result<(Uuid, Swap)>> {
self.swaps.iter().map(|item| {
let (key, value) = item.context("Failed to retrieve swap from DB")?;
let swap_id = deserialize::<Uuid>(&key)?;
let swap = deserialize::<Swap>(&value).context("Failed to deserialize swap")?;
Ok((swap_id, swap))
})
}
pub fn unfinished_alice(&self) -> Result<Vec<(Uuid, Alice)>> {
self.all_alice_iter()
.filter_ok(|(_swap_id, alice)| !matches!(alice, Alice::Done(_)))
.collect()
}
}
pub fn serialize<T>(t: &T) -> Result<Vec<u8>>
where
T: Serialize,
{
Ok(serde_cbor::to_vec(t)?)
}
pub fn deserialize<T>(v: &[u8]) -> Result<T>
where
T: DeserializeOwned,
{
Ok(serde_cbor::from_slice(&v)?)
}
#[cfg(test)]
mod tests {
use super::*;
use crate::database::alice::{Alice, AliceEndState};
use crate::database::bob::{Bob, BobEndState};
use crate::database::{NotAlice, NotBob};
#[tokio::test]
async fn can_write_and_read_to_multiple_keys() {
let db_dir = tempfile::tempdir().unwrap();
let db = SledDatabase::open(db_dir.path()).unwrap();
let state_1 = Swap::Alice(Alice::Done(AliceEndState::BtcRedeemed));
let swap_id_1 = Uuid::new_v4();
db.insert_latest_state(swap_id_1, state_1.clone())
.await
.expect("Failed to save second state");
let state_2 = Swap::Bob(Bob::Done(BobEndState::SafelyAborted));
let swap_id_2 = Uuid::new_v4();
db.insert_latest_state(swap_id_2, state_2.clone())
.await
.expect("Failed to save first state");
let recovered_1 = db
.get_state(swap_id_1)
.expect("Failed to recover first state");
let recovered_2 = db
.get_state(swap_id_2)
.expect("Failed to recover second state");
assert_eq!(recovered_1, state_1);
assert_eq!(recovered_2, state_2);
}
#[tokio::test]
async fn can_write_twice_to_one_key() {
let db_dir = tempfile::tempdir().unwrap();
let db = SledDatabase::open(db_dir.path()).unwrap();
let state = Swap::Alice(Alice::Done(AliceEndState::SafelyAborted));
let swap_id = Uuid::new_v4();
db.insert_latest_state(swap_id, state.clone())
.await
.expect("Failed to save state the first time");
let recovered = db
.get_state(swap_id)
.expect("Failed to recover state the first time");
// We insert and recover twice to ensure database implementation allows the
// caller to write to an existing key
db.insert_latest_state(swap_id, recovered)
.await
.expect("Failed to save state the second time");
let recovered = db
.get_state(swap_id)
.expect("Failed to recover state the second time");
assert_eq!(recovered, state);
}
#[tokio::test]
async fn all_swaps_as_alice() {
let db_dir = tempfile::tempdir().unwrap();
let db = SledDatabase::open(db_dir.path()).unwrap();
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state.clone());
let alice_swap_id = Uuid::new_v4();
db.insert_latest_state(alice_swap_id, alice_swap)
.await
.expect("Failed to save alice state 1");
let alice_swaps = db.all_alice().unwrap();
assert_eq!(alice_swaps.len(), 1);
assert!(alice_swaps.contains(&(alice_swap_id, alice_state)));
let bob_state = Bob::Done(BobEndState::SafelyAborted);
let bob_swap = Swap::Bob(bob_state);
let bob_swap_id = Uuid::new_v4();
db.insert_latest_state(bob_swap_id, bob_swap)
.await
.expect("Failed to save bob state 1");
let err = db.all_alice().unwrap_err();
assert_eq!(err.downcast_ref::<NotAlice>().unwrap(), &NotAlice);
}
#[tokio::test]
async fn all_swaps_as_bob() {
let db_dir = tempfile::tempdir().unwrap();
let db = SledDatabase::open(db_dir.path()).unwrap();
let bob_state = Bob::Done(BobEndState::SafelyAborted);
let bob_swap = Swap::Bob(bob_state.clone());
let bob_swap_id = Uuid::new_v4();
db.insert_latest_state(bob_swap_id, bob_swap)
.await
.expect("Failed to save bob state 1");
let bob_swaps = db.all_bob().unwrap();
assert_eq!(bob_swaps.len(), 1);
assert!(bob_swaps.contains(&(bob_swap_id, bob_state)));
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state);
let alice_swap_id = Uuid::new_v4();
db.insert_latest_state(alice_swap_id, alice_swap)
.await
.expect("Failed to save alice state 1");
let err = db.all_bob().unwrap_err();
assert_eq!(err.downcast_ref::<NotBob>().unwrap(), &NotBob);
}
#[tokio::test]
async fn can_save_swap_state_and_peer_id_with_same_swap_id() -> Result<()> {
let db_dir = tempfile::tempdir().unwrap();
let db = SledDatabase::open(db_dir.path()).unwrap();
let alice_id = Uuid::new_v4();
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state);
let peer_id = PeerId::random();
db.insert_latest_state(alice_id, alice_swap.clone()).await?;
db.insert_peer_id(alice_id, peer_id).await?;
let loaded_swap = db.get_state(alice_id)?;
let loaded_peer_id = db.get_peer_id(alice_id)?;
assert_eq!(alice_swap, loaded_swap);
assert_eq!(peer_id, loaded_peer_id);
Ok(())
}
#[tokio::test]
async fn test_reopen_db() -> Result<()> {
let db_dir = tempfile::tempdir().unwrap();
let alice_id = Uuid::new_v4();
let alice_state = Alice::Done(AliceEndState::BtcPunished);
let alice_swap = Swap::Alice(alice_state);
let peer_id = PeerId::random();
{
let db = SledDatabase::open(db_dir.path()).unwrap();
db.insert_latest_state(alice_id, alice_swap.clone()).await?;
db.insert_peer_id(alice_id, peer_id).await?;
}
let db = SledDatabase::open(db_dir.path()).unwrap();
let loaded_swap = db.get_state(alice_id)?;
let loaded_peer_id = db.get_peer_id(alice_id)?;
assert_eq!(alice_swap, loaded_swap);
assert_eq!(peer_id, loaded_peer_id);
Ok(())
}
#[tokio::test]
async fn save_and_load_addresses() -> Result<()> {
let db_dir = tempfile::tempdir()?;
let peer_id = PeerId::random();
let home1 = "/ip4/127.0.0.1/tcp/1".parse::<Multiaddr>()?;
let home2 = "/ip4/127.0.0.1/tcp/2".parse::<Multiaddr>()?;
{
let db = SledDatabase::open(db_dir.path())?;
db.insert_address(peer_id, home1.clone()).await?;
db.insert_address(peer_id, home2.clone()).await?;
}
let addresses = SledDatabase::open(db_dir.path())?.get_addresses(peer_id)?;
assert_eq!(addresses, vec![home1, home2]);
Ok(())
}
#[tokio::test]
async fn save_and_load_monero_address() -> Result<()> {
let db_dir = tempfile::tempdir()?;
let swap_id = Uuid::new_v4();
SledDatabase::open(db_dir.path())?.insert_monero_address(swap_id, "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a".parse()?).await?;
let loaded_monero_address =
SledDatabase::open(db_dir.path())?.get_monero_address(swap_id)?;
assert_eq!(loaded_monero_address.to_string(), "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a");
Ok(())
}
}

4
swap/src/protocol/alice.rs
View File

@ -1,6 +1,6 @@
//! Run an XMR/BTC swap in the role of Alice.
//! Alice holds XMR and wishes receive BTC.
use crate::database::Database;
use crate::database::SledDatabase;
use crate::env::Config;
use crate::{asb, bitcoin, monero};
use std::sync::Arc;
@ -19,5 +19,5 @@ pub struct Swap {
pub monero_wallet: Arc<monero::Wallet>,
pub env_config: Config,
pub swap_id: Uuid,
pub db: Arc<Database>,
pub db: Arc<SledDatabase>,
}

8
swap/src/protocol/bob.rs
View File

@ -3,7 +3,7 @@ use std::sync::Arc;
use anyhow::Result;
use uuid::Uuid;
use crate::database::Database;
use crate::database::SledDatabase;
use crate::{bitcoin, cli, env, monero};
pub use self::state::*;
@ -15,7 +15,7 @@ pub mod swap;
pub struct Swap {
pub state: BobState,
pub event_loop_handle: cli::EventLoopHandle,
pub db: Database,
pub db: SledDatabase,
pub bitcoin_wallet: Arc<bitcoin::Wallet>,
pub monero_wallet: Arc<monero::Wallet>,
pub env_config: env::Config,
@ -26,7 +26,7 @@ pub struct Swap {
impl Swap {
#[allow(clippy::too_many_arguments)]
pub fn new(
db: Database,
db: SledDatabase,
id: Uuid,
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,
@ -53,7 +53,7 @@ impl Swap {
#[allow(clippy::too_many_arguments)]
pub fn from_db(
db: Database,
db: SledDatabase,
id: Uuid,
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,

8
swap/tests/harness/mod.rs
View File

@ -16,7 +16,7 @@ use std::sync::Arc;
use std::time::Duration;
use swap::asb::FixedRate;
use swap::bitcoin::{CancelTimelock, PunishTimelock, TxCancel, TxPunish, TxRedeem, TxRefund};
use swap::database::Database;
use swap::database::SledDatabase;
use swap::env::{Config, GetConfig};
use swap::network::swarm;
use swap::protocol::alice::{AliceState, Swap};
@ -222,7 +222,7 @@ async fn start_alice(
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,
) -> (AliceApplicationHandle, Receiver<alice::Swap>) {
let db = Arc::new(Database::open(db_path.as_path()).unwrap());
let db = Arc::new(SledDatabase::open(db_path.as_path()).unwrap());
let min_buy = bitcoin::Amount::from_sat(u64::MIN);
let max_buy = bitcoin::Amount::from_sat(u64::MAX);
@ -402,7 +402,7 @@ struct BobParams {
impl BobParams {
pub async fn new_swap_from_db(&self, swap_id: Uuid) -> Result<(bob::Swap, cli::EventLoop)> {
let (event_loop, handle) = self.new_eventloop(swap_id).await?;
let db = Database::open(&self.db_path)?;
let db = SledDatabase::open(&self.db_path)?;
let swap = bob::Swap::from_db(
db,
@ -424,7 +424,7 @@ impl BobParams {
let swap_id = Uuid::new_v4();
let (event_loop, handle) = self.new_eventloop(swap_id).await?;
let db = Database::open(&self.db_path)?;
let db = SledDatabase::open(&self.db_path)?;
let swap = bob::Swap::new(
db,