fix: format eth providers as set so they are never duplicated

kinode/src/eth/mod.rs

@@ -63,18 +63,26 @@ impl ActiveProviders {
                 kns_update,
                 use_as_provider,
             } => {
-                self.nodes.push(NodeProvider {
-                    trusted: new.trusted,
-                    usable: use_as_provider,
-                    kns_update,
-                });
+                self.remove_provider(&kns_update.name);
+                self.nodes.insert(
+                    0,
+                    NodeProvider {
+                        trusted: new.trusted,
+                        usable: use_as_provider,
+                        kns_update,
+                    },
+                );
             }
             NodeOrRpcUrl::RpcUrl(url) => {
-                self.urls.push(UrlProvider {
-                    trusted: new.trusted,
-                    url,
-                    pubsub: None,
-                });
+                self.remove_provider(&url);
+                self.urls.insert(
+                    0,
+                    UrlProvider {
+                        trusted: new.trusted,
+                        url,
+                        pubsub: None,
+                    },
+                );
             }
         }
     }

kinode/src/main.rs

@@ -86,7 +86,7 @@ async fn main() {
             Err(_) => serde_json::from_str(DEFAULT_ETH_PROVIDERS).unwrap(),
         };
     if let Some(rpc) = rpc {
-        eth_provider_config.push(lib::eth::ProviderConfig {
+        eth_provider_config.insert(lib::eth::ProviderConfig {
             chain_id: CHAIN_ID,
             trusted: true,
             provider: lib::eth::NodeOrRpcUrl::RpcUrl(rpc.to_string()),

kinode/src/register.rs

@@ -125,8 +125,13 @@ pub async fn register(
     } else {
         "wss://optimism-rpc.publicnode.com".to_string()
     };
-    let connector = WsConnect { url, auth: None };
-    let Ok(client) = ClientBuilder::default().ws(connector).await else {
+    println!("Connecting to Optimism RPC at {url}");
+    // this fails occasionally in certain networking environments. i'm not sure why.
+    // frustratingly, the exact same call does not fail in the eth module. more investigation needed.
+    let Ok(client) = ClientBuilder::default()
+        .ws(WsConnect { url, auth: None })
+        .await
+    else {
         panic!(
             "Error: runtime could not connect to ETH RPC.\n\
             This is necessary in order to verify node identity onchain.\n\
@@ -134,6 +139,7 @@ pub async fn register(
             the --rpc flag, and you are connected to the internet."
         );
     };
+    println!("Connected to Optimism RPC");
 
     let provider = Arc::new(Provider::new_with_client(client));
 

lib/src/core.rs

@@ -1583,7 +1583,7 @@ pub enum NetResponse {
     Verified(bool),
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize)]
+#[derive(Clone, Debug, Serialize, Deserialize, Hash, Eq, PartialEq)]
 pub struct KnsUpdate {
     pub name: String, // actual username / domain name
     pub owner: String,

lib/src/eth.rs

@@ -141,17 +141,17 @@ pub struct AccessSettings {
     pub deny: HashSet<String>,  // blacklist for access (always used)
 }
 
-pub type SavedConfigs = Vec<ProviderConfig>;
+pub type SavedConfigs = HashSet<ProviderConfig>;
 
 /// Provider config. Can currently be a node or a ws provider instance.
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize, Hash, Eq, PartialEq)]
 pub struct ProviderConfig {
     pub chain_id: u64,
     pub trusted: bool,
     pub provider: NodeOrRpcUrl,
 }
 
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize, Hash, Eq, PartialEq)]
 pub enum NodeOrRpcUrl {
     Node {
         kns_update: crate::core::KnsUpdate,