From 4de7490d9712873c6ccf39ba14c5fc0500d5c5bd Mon Sep 17 00:00:00 2001
From: Greg Heartsfield <scsibug@imap.cc>
Date: Sat, 19 Nov 2022 10:00:38 -0600
Subject: [PATCH] fix: send EOSE when authors list is empty in subscriptions

Fixes: https://todo.sr.ht/~gheartsfield/nostr-rs-relay/49
---
 src/db.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/db.rs b/src/db.rs
index b3bbb31..a8f2ee2 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -471,8 +471,14 @@ fn query_from_filter(f: &ReqFilter) -> (String, Vec<Box<dyn ToSql>>) {
                 }
             }
         }
-        let authors_clause = format!("({})", auth_searches.join(" OR "));
-        filter_components.push(authors_clause);
+        if authvec.len() > 0 {
+            let authors_clause = format!("({})", auth_searches.join(" OR "));
+            filter_components.push(authors_clause);
+        } else {
+            // if the authors list was empty, we should never return
+            // any results.
+            filter_components.push("false".to_owned());
+        }
     }
     // Query for Kind
     if let Some(ks) = &f.kinds {