Add functionality to open monero wallet through rpc

monero-harness/src/rpc/wallet.rs

@@ -121,6 +121,33 @@ impl Client {
         Ok(r.result)
     }
 
+    /// Opens a wallet using `filename`.
+    pub async fn open_wallet(&self, filename: &str) -> Result<()> {
+        let params = OpenWalletParams {
+            filename: filename.to_owned(),
+        };
+        let request = Request::new("open_wallet", params);
+
+        let response = self
+            .inner
+            .post(self.url.clone())
+            .json(&request)
+            .send()
+            .await?
+            .text()
+            .await?;
+
+        debug!("open wallet RPC response: {}", response);
+
+        // TODO: Proper error handling once switching to https://github.com/thomaseizinger/rust-jsonrpc-client/
+        //  Currently blocked by https://github.com/thomaseizinger/rust-jsonrpc-client/issues/20
+        if response.contains("error") {
+            bail!("Failed to open wallet")
+        }
+
+        Ok(())
+    }
+
     /// Creates a wallet using `filename`.
     pub async fn create_wallet(&self, filename: &str) -> Result<()> {
         let params = CreateWalletParams {
@@ -352,6 +379,11 @@ pub struct SubAddressAccount {
     pub unlocked_balance: u64,
 }
 
+#[derive(Serialize, Debug, Clone)]
+struct OpenWalletParams {
+    filename: String,
+}
+
 #[derive(Serialize, Debug, Clone)]
 struct CreateWalletParams {
     filename: String,

swap/src/monero.rs

@@ -207,6 +207,11 @@ pub trait CreateWalletForOutput {
     ) -> anyhow::Result<()>;
 }
 
+#[async_trait]
+pub trait OpenWallet {
+    async fn open_wallet(&self, file_name: &str) -> anyhow::Result<()>;
+}
+
 #[async_trait]
 pub trait CreateWallet {
     async fn create_wallet(&self, file_name: &str) -> anyhow::Result<()>;

swap/src/monero/wallet.rs

@@ -1,6 +1,6 @@
 use crate::monero::{
-    Amount, CreateWallet, CreateWalletForOutput, InsufficientFunds, PrivateViewKey, PublicViewKey,
-    Transfer, TransferProof, TxHash, WatchForTransfer,
+    Amount, CreateWallet, CreateWalletForOutput, InsufficientFunds, OpenWallet, PrivateViewKey,
+    PublicViewKey, Transfer, TransferProof, TxHash, WatchForTransfer,
 };
 use ::monero::{Address, Network, PrivateKey, PublicKey};
 use anyhow::Result;
@@ -94,6 +94,14 @@ impl CreateWalletForOutput for Wallet {
     }
 }
 
+#[async_trait]
+impl OpenWallet for Wallet {
+    async fn open_wallet(&self, file_name: &str) -> Result<()> {
+        self.inner.open_wallet(file_name).await?;
+        Ok(())
+    }
+}
+
 #[async_trait]
 impl CreateWallet for Wallet {
     async fn create_wallet(&self, file_name: &str) -> Result<()> {