improve some errors

web3_proxy/src/bin/web3_proxy_cli/check_config.rs

@@ -85,10 +85,7 @@ impl CheckConfigSubCommand {
         if num_errors == 0 {
             Ok(())
         } else {
-            Err(anyhow::anyhow!(format!(
+            Err(anyhow::anyhow!("there were {} errors!", num_errors))
-                "there were {} errors!",
-                num_errors
-            )))
         }
     }
 }

web3_proxy/src/frontend/authorization.rs

@@ -243,7 +243,7 @@ impl Authorization {
             None => {}
             Some(allowed_ips) => {
                 if !allowed_ips.iter().any(|x| x.contains(&ip)) {
-                    return Err(anyhow::anyhow!("IP is not allowed!"));
+                    return Err(anyhow::anyhow!("IP ({}) is not allowed!", ip));
                 }
             }
         }
@@ -255,7 +255,7 @@ impl Authorization {
             (None, Some(_)) => return Err(anyhow::anyhow!("Origin required")),
             (Some(origin), Some(allowed_origins)) => {
                 if !allowed_origins.contains(origin) {
-                    return Err(anyhow::anyhow!("IP is not allowed!"));
+                    return Err(anyhow::anyhow!("Origin ({}) is not allowed!", origin));
                 }
             }
         }
@@ -267,7 +267,7 @@ impl Authorization {
             (None, Some(_)) => return Err(anyhow::anyhow!("Referer required")),
             (Some(referer), Some(allowed_referers)) => {
                 if !allowed_referers.contains(referer) {
-                    return Err(anyhow::anyhow!("Referer is not allowed!"));
+                    return Err(anyhow::anyhow!("Referer ({:?}) is not allowed!", referer));
                 }
             }
         }
@@ -279,7 +279,10 @@ impl Authorization {
             (None, Some(_)) => return Err(anyhow::anyhow!("User agent required")),
             (Some(user_agent), Some(allowed_user_agents)) => {
                 if !allowed_user_agents.contains(user_agent) {
-                    return Err(anyhow::anyhow!("User agent is not allowed!"));
+                    return Err(anyhow::anyhow!(
+                        "User agent ({}) is not allowed!",
+                        user_agent
+                    ));
                 }
             }
         }

web3_proxy/src/frontend/rpc_proxy_ws.rs

@@ -253,7 +253,7 @@ async fn handle_socket_payload(
                             FrontendErrorResponse::Anyhow(err) => Err(err),
                             _ => {
                                 error!("handle this better! {:?}", err);
-                                Err(anyhow::anyhow!(format!("unexpected error! {:?}", err)))
+                                Err(anyhow::anyhow!("unexpected error! {:?}", err))
                             }
                         },
                         |(response, _)| Ok(response),