feat: add event kind blacklist

Adds a list to the config where you can specify which event kinds to blacklist.
The blacklist check will run right after verifying that the pubkey is allowed
to post events to the relay.
This commit is contained in:
0xtr 2022-12-25 00:16:55 +01:00 committed by Greg Heartsfield
parent 104ef2b9e1
commit 7774db8c47
3 changed files with 26 additions and 1 deletions

View File

@ -100,6 +100,11 @@ reject_future_seconds = 1800
# backpressure to senders if writes are slow.
#event_persist_buffer = 4096
# Event kind blacklist. Events with these kinds will be discarded.
#event_kind_blacklist = [
# 70202,
#]
[authorization]
# Pubkey addresses in this array are whitelisted for event publishing.
# Only valid events by these authors will be accepted, if the variable

View File

@ -60,6 +60,7 @@ pub struct Limits {
pub max_ws_frame_bytes: Option<usize>,
pub broadcast_buffer: usize, // events to buffer for subscribers (prevents slow readers from consuming memory)
pub event_persist_buffer: usize, // events to buffer for database commits (block senders if database writes are too slow)
pub event_kind_blacklist: Option<Vec<u64>>
}
#[derive(Debug, Clone, Serialize, Deserialize)]
@ -225,6 +226,7 @@ impl Default for Settings {
max_ws_frame_bytes: Some(2 << 17), // 128K
broadcast_buffer: 16384,
event_persist_buffer: 4096,
event_kind_blacklist: None,
},
authorization: Authorization {
pubkey_whitelist: None, // Allow any address to publish

View File

@ -232,6 +232,24 @@ pub async fn db_writer(
}
}
// Check that event kind isn't blacklisted
let kinds_blacklist = &settings.limits.event_kind_blacklist.clone();
if let Some(event_kind_blacklist) = kinds_blacklist {
if event_kind_blacklist.contains(&event.kind) {
info!(
"Rejecting event {}, blacklisted kind",
&event.get_event_id_prefix()
);
notice_tx
.try_send(Notice::blocked(
event.id,
"event kind is blocked by relay"
))
.ok();
continue;
}
}
// send any metadata events to the NIP-05 verifier
if nip05_active && event.is_kind_metadata() {
// we are sending this prior to even deciding if we
@ -901,4 +919,4 @@ pub async fn db_query(
let ok: Result<()> = Ok(());
ok
});
}
}