Fix cookie path issue: add cookie_path config option and use it in rpc_connect

src/config.rs

@@ -16,6 +16,7 @@ pub struct Config {
     pub blindbit_url: String,
     pub zmq_url: String,
     pub data_dir: String,
+    pub cookie_path: Option<String>,
 }
 
 impl Config {
@@ -74,6 +75,7 @@ impl Config {
             data_dir: file_content
                 .remove("data_dir")
                 .unwrap_or_else(|| ".4nk".to_string()),
+            cookie_path: file_content.remove("cookie_path").map(|s| s.to_owned()),
         };
 
         Ok(config)

src/daemon.rs

@@ -90,7 +90,7 @@ fn read_cookie(path: &Path) -> Result<(String, String)> {
     Ok((parts[0].to_owned(), parts[1].to_owned()))
 }
 
-fn rpc_connect(rpcwallet: Option<String>, network: Network, mut rpc_url: String) -> Result<Client> {
+fn rpc_connect(rpcwallet: Option<String>, network: Network, mut rpc_url: String, cookie_path: Option<PathBuf>) -> Result<Client> {
     match rpcwallet {
         Some(rpcwallet) => rpc_url.push_str(&rpcwallet),
         None => (),
@@ -101,11 +101,20 @@ fn rpc_connect(rpcwallet: Option<String>, network: Network, mut rpc_url: String)
     let builder = jsonrpc::simple_http::SimpleHttpTransport::builder()
         .url(&rpc_url)?
         .timeout(Duration::from_secs(30));
-    let home = env::var("HOME")?;
-    let mut cookie_path = PathBuf::from_str(&home)?;
-    cookie_path.push(".bitcoin");
-    cookie_path.push(network.to_core_arg());
-    cookie_path.push(".cookie");
+    
+    let cookie_path = match cookie_path {
+        Some(path) => path,
+        None => {
+            // Fallback to default path
+            let home = env::var("HOME")?;
+            let mut default_path = PathBuf::from_str(&home)?;
+            default_path.push(".bitcoin");
+            default_path.push(network.to_core_arg());
+            default_path.push(".cookie");
+            default_path
+        }
+    };
+    
     let daemon_auth = SensitiveAuth(Auth::CookieFile(cookie_path));
     let builder = match daemon_auth.get_auth() {
         Auth::None => builder,
@@ -126,8 +135,8 @@ pub struct Daemon {
 }
 
 impl RpcCall for Daemon {
-    fn connect(rpcwallet: Option<String>, rpc_url: String, network: Network) -> Result<Self> {
-        let mut rpc = rpc_connect(rpcwallet, network, rpc_url)?;
+    fn connect(rpcwallet: Option<String>, rpc_url: String, network: Network, cookie_path: Option<PathBuf>) -> Result<Self> {
+        let mut rpc = rpc_connect(rpcwallet, network, rpc_url, cookie_path)?;
 
         loop {
             match rpc_poll(&mut rpc, false) {
@@ -390,7 +399,7 @@ impl RpcCall for Daemon {
 }
 
 pub(crate) trait RpcCall: Send + Sync + std::fmt::Debug {
-    fn connect(rpcwallet: Option<String>, rpc_url: String, network: Network) -> Result<Self>
+    fn connect(rpcwallet: Option<String>, rpc_url: String, network: Network, cookie_path: Option<PathBuf>) -> Result<Self>
     where
         Self: Sized;
 

src/main.rs

@@ -438,10 +438,12 @@ async fn main() -> Result<()> {
     const RETRY_DELAY_MS: u64 = 2000; // 2 seconds initial delay
     
     let daemon = loop {
+        let cookie_path = config.cookie_path.as_ref().map(|p| PathBuf::from(p));
         match Daemon::connect(
             config.core_wallet.clone(),
             config.core_url.clone(),
             config.network,
+            cookie_path,
         ) {
             Ok(daemon) => break daemon,
             Err(e) => {