From e63d179424b9bb128a9213f90926f18a083cfa01 Mon Sep 17 00:00:00 2001
From: Greg Heartsfield <scsibug@imap.cc>
Date: Sat, 11 Feb 2023 13:26:08 -0600
Subject: [PATCH] fix: prevent loop when nip05 metadata channel closes

---
 src/error.rs |  2 ++
 src/nip05.rs | 10 +++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/error.rs b/src/error.rs
index 0f87060..f931b92 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -62,6 +62,8 @@ pub enum Error {
     HexError(hex::FromHexError),
     #[error("Delegation parse error")]
     DelegationParseError,
+    #[error("Channel closed error")]
+    ChannelClosed,
     #[error("Unknown/Undocumented")]
     UnknownError,
 }
diff --git a/src/nip05.rs b/src/nip05.rs
index 4ba9763..f261e70 100644
--- a/src/nip05.rs
+++ b/src/nip05.rs
@@ -257,8 +257,15 @@ impl Verifier {
         // run a loop, restarting on failure
         loop {
             let res = self.run_internal().await;
-            if let Err(e) = res {
+            match res {
+                Err(Error::ChannelClosed) => {
+                    // channel was closed, we are shutting down
+                    return;
+                },
+                Err(e) => {
                 info!("error in verifier: {:?}", e);
+                },
+                _ => {}
             }
         }
     }
@@ -305,6 +312,7 @@ impl Verifier {
                     }
                     Err(tokio::sync::broadcast::error::RecvError::Closed) => {
                         info!("metadata broadcast channel closed");
+                        return Err(Error::ChannelClosed);
                     }
                 }
             },