You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
401 lines
12 KiB
Rust
401 lines
12 KiB
Rust
use crate::database::Swap;
|
|
use crate::protocol::{Database, State};
|
|
use anyhow::{anyhow, Context, Result};
|
|
use async_trait::async_trait;
|
|
use libp2p::{Multiaddr, PeerId};
|
|
use serde::de::DeserializeOwned;
|
|
use serde::Serialize;
|
|
use std::path::Path;
|
|
use std::str::FromStr;
|
|
use uuid::Uuid;
|
|
|
|
pub use crate::database::alice::Alice;
|
|
pub use crate::database::bob::Bob;
|
|
|
|
pub struct SledDatabase {
|
|
swaps: sled::Tree,
|
|
peers: sled::Tree,
|
|
addresses: sled::Tree,
|
|
monero_addresses: sled::Tree,
|
|
}
|
|
|
|
#[async_trait]
|
|
impl Database for SledDatabase {
|
|
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")
|
|
}
|
|
|
|
async 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())?)
|
|
}
|
|
|
|
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")
|
|
}
|
|
|
|
async 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)
|
|
}
|
|
|
|
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")
|
|
}
|
|
|
|
async 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)
|
|
}
|
|
|
|
async fn insert_latest_state(&self, swap_id: Uuid, state: State) -> Result<()> {
|
|
let key = serialize(&swap_id)?;
|
|
let swap = Swap::from(state);
|
|
let new_value = serialize(&swap).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")
|
|
}
|
|
|
|
async fn get_state(&self, swap_id: Uuid) -> Result<State> {
|
|
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 swap = deserialize::<Swap>(&encoded).context("Could not deserialize state")?;
|
|
|
|
let state = State::from(swap);
|
|
|
|
Ok(state)
|
|
}
|
|
|
|
async fn all(&self) -> Result<Vec<(Uuid, State)>> {
|
|
self.all_iter().collect()
|
|
}
|
|
}
|
|
|
|
impl SledDatabase {
|
|
pub async 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 fn get_all_peers(&self) -> impl Iterator<Item = Result<(Uuid, PeerId)>> {
|
|
self.peers.iter().map(|item| {
|
|
let (key, value) = item.context("Failed to retrieve peer id from DB")?;
|
|
|
|
let swap_id = deserialize::<Uuid>(&key)?;
|
|
let peer_id_bytes =
|
|
deserialize::<Vec<u8>>(&value).context("Failed to deserialize swap")?;
|
|
|
|
let peer_id = PeerId::from_bytes(&peer_id_bytes)?;
|
|
|
|
Ok((swap_id, peer_id))
|
|
})
|
|
}
|
|
|
|
pub fn get_all_addresses(&self) -> impl Iterator<Item = Result<(PeerId, Vec<Multiaddr>)>> {
|
|
self.addresses.iter().map(|item| {
|
|
let (key, value) = item.context("Failed to retrieve peer address from DB")?;
|
|
|
|
let peer_id_bytes = deserialize::<Vec<u8>>(&key)?;
|
|
let addr =
|
|
deserialize::<Vec<Multiaddr>>(&value).context("Failed to deserialize swap")?;
|
|
|
|
let peer_id = PeerId::from_bytes(&peer_id_bytes)?;
|
|
|
|
Ok((peer_id, addr))
|
|
})
|
|
}
|
|
|
|
pub fn get_all_monero_addresses(
|
|
&self,
|
|
) -> impl Iterator<Item = Result<(Uuid, monero::Address)>> {
|
|
self.monero_addresses.iter().map(|item| {
|
|
let (key, value) = item.context("Failed to retrieve monero address from DB")?;
|
|
|
|
let swap_id = deserialize::<Uuid>(&key)?;
|
|
let addr =
|
|
deserialize::<monero::Address>(&value).context("Failed to deserialize swap")?;
|
|
|
|
Ok((swap_id, addr))
|
|
})
|
|
}
|
|
|
|
fn all_iter(&self) -> impl Iterator<Item = Result<(Uuid, State)>> {
|
|
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")?;
|
|
|
|
let state = State::from(swap);
|
|
|
|
Ok((swap_id, state))
|
|
})
|
|
}
|
|
}
|
|
|
|
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::protocol::alice::AliceState;
|
|
|
|
#[tokio::test]
|
|
async fn can_write_and_read_to_multiple_keys() {
|
|
let db_dir = tempfile::tempdir().unwrap();
|
|
let db = SledDatabase::open(db_dir.path()).await.unwrap();
|
|
|
|
let state_1 = State::from(AliceState::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 = State::from(AliceState::BtcPunished);
|
|
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)
|
|
.await
|
|
.expect("Failed to recover first state");
|
|
|
|
let recovered_2 = db
|
|
.get_state(swap_id_2)
|
|
.await
|
|
.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()).await.unwrap();
|
|
|
|
let state = State::from(AliceState::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)
|
|
.await
|
|
.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)
|
|
.await
|
|
.expect("Failed to recover state the second time");
|
|
|
|
assert_eq!(recovered, state);
|
|
}
|
|
|
|
#[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()).await.unwrap();
|
|
|
|
let alice_id = Uuid::new_v4();
|
|
let alice_state = State::from(AliceState::BtcPunished);
|
|
let peer_id = PeerId::random();
|
|
|
|
db.insert_latest_state(alice_id, alice_state.clone())
|
|
.await?;
|
|
db.insert_peer_id(alice_id, peer_id).await?;
|
|
|
|
let loaded_swap = db.get_state(alice_id).await?;
|
|
let loaded_peer_id = db.get_peer_id(alice_id).await?;
|
|
|
|
assert_eq!(alice_state, 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 = State::from(AliceState::BtcPunished);
|
|
|
|
let peer_id = PeerId::random();
|
|
|
|
{
|
|
let db = SledDatabase::open(db_dir.path()).await.unwrap();
|
|
db.insert_latest_state(alice_id, alice_state.clone())
|
|
.await?;
|
|
db.insert_peer_id(alice_id, peer_id).await?;
|
|
}
|
|
|
|
let db = SledDatabase::open(db_dir.path()).await.unwrap();
|
|
|
|
let loaded_swap = db.get_state(alice_id).await?;
|
|
let loaded_peer_id = db.get_peer_id(alice_id).await?;
|
|
|
|
assert_eq!(alice_state, 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()).await?;
|
|
db.insert_address(peer_id, home1.clone()).await?;
|
|
db.insert_address(peer_id, home2.clone()).await?;
|
|
}
|
|
|
|
let addresses = SledDatabase::open(db_dir.path())
|
|
.await?
|
|
.get_addresses(peer_id)
|
|
.await?;
|
|
|
|
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()).await?.insert_monero_address(swap_id, "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a".parse()?).await?;
|
|
let loaded_monero_address = SledDatabase::open(db_dir.path())
|
|
.await?
|
|
.get_monero_address(swap_id)
|
|
.await?;
|
|
|
|
assert_eq!(loaded_monero_address.to_string(), "53gEuGZUhP9JMEBZoGaFNzhwEgiG7hwQdMCqFxiyiTeFPmkbt1mAoNybEUvYBKHcnrSgxnVWgZsTvRBaHBNXPa8tHiCU51a");
|
|
|
|
Ok(())
|
|
}
|
|
}
|