From 0755ec6ac49ce5b728e7e1ed0f2d76c7d3e0718f Mon Sep 17 00:00:00 2001
From: Proudmuslim <proudmuslim-dev@protonmail.com>
Date: Mon, 27 Nov 2023 19:13:09 -0800
Subject: [PATCH] nostr: filter out `GenericTagValue` variants that do not
 adhere to the spec

---
 crates/nostr/src/message/subscription.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/crates/nostr/src/message/subscription.rs b/crates/nostr/src/message/subscription.rs
index 0e73298ee..355032d11 100644
--- a/crates/nostr/src/message/subscription.rs
+++ b/crates/nostr/src/message/subscription.rs
@@ -737,7 +737,14 @@ where
                 if let (Some('#'), Some(ch), None) = (chars.next(), chars.next(), chars.next()) {
                     let tag: Alphabet = Alphabet::from_str(ch.to_string().as_str())
                         .map_err(serde::de::Error::custom)?;
-                    let values = map.next_value()?;
+                    let mut values: AllocSet<GenericTagValue> = map.next_value()?;
+
+                    match tag {
+                        Alphabet::P => values.retain(|v| matches!(v, GenericTagValue::Pubkey(_))),
+                        Alphabet::E => values.retain(|v| matches!(v, GenericTagValue::EventId(_))),
+                        _ => {}
+                    }
+
                     generic_tags.insert(tag, values);
                 } else {
                     map.next_value::<serde::de::IgnoredAny>()?;