mirror of
https://github.com/scsibug/nostr-rs-relay.git
synced 2024-11-22 09:09:07 -05:00
refactor: improve error messages
This commit is contained in:
parent
cacd1ccb36
commit
56c40f2be9
18
src/conn.rs
18
src/conn.rs
|
@ -61,26 +61,30 @@ impl ClientConn {
|
|||
// prevent arbitrarily long subscription identifiers from
|
||||
// being used.
|
||||
if sub_id_len > MAX_SUBSCRIPTION_ID_LEN {
|
||||
info!("Dropping subscription with huge ({}) length", sub_id_len);
|
||||
info!(
|
||||
"ignoring sub request with excessive length: ({})",
|
||||
sub_id_len
|
||||
);
|
||||
return Ok(());
|
||||
}
|
||||
// check if an existing subscription exists, and replace if so
|
||||
if self.subscriptions.contains_key(&k) {
|
||||
self.subscriptions.remove(&k);
|
||||
self.subscriptions.insert(k, s);
|
||||
debug!("Replaced existing subscription");
|
||||
debug!("replaced existing subscription");
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
// check if there is room for another subscription.
|
||||
if self.subscriptions.len() >= self.max_subs {
|
||||
info!("Client has reached the maximum number of unique subscriptions");
|
||||
// TODO: return error/notice for this
|
||||
info!("client has reached the maximum number of unique subscriptions");
|
||||
return Ok(());
|
||||
}
|
||||
// add subscription
|
||||
self.subscriptions.insert(k, s);
|
||||
info!(
|
||||
"Registered new subscription, currently have {} active subs",
|
||||
debug!(
|
||||
"registered new subscription, currently have {} active subs",
|
||||
self.subscriptions.len()
|
||||
);
|
||||
Ok(())
|
||||
|
@ -90,8 +94,8 @@ impl ClientConn {
|
|||
pub fn unsubscribe(&mut self, c: Close) {
|
||||
// TODO: return notice if subscription did not exist.
|
||||
self.subscriptions.remove(&c.id);
|
||||
info!(
|
||||
"Removed subscription, currently have {} active subs",
|
||||
debug!(
|
||||
"removed subscription, currently have {} active subs",
|
||||
self.subscriptions.len()
|
||||
);
|
||||
}
|
||||
|
|
15
src/db.rs
15
src/db.rs
|
@ -73,12 +73,12 @@ pub async fn db_writer(
|
|||
Path::new(DB_FILE),
|
||||
OpenFlags::SQLITE_OPEN_READ_WRITE | OpenFlags::SQLITE_OPEN_CREATE,
|
||||
)?;
|
||||
info!("Opened database for writing");
|
||||
info!("opened database for writing");
|
||||
// TODO: determine if we need to execute the init script.
|
||||
// TODO: check database app id / version before proceeding.
|
||||
match conn.execute_batch(INIT_SQL) {
|
||||
Ok(()) => info!("init completed"),
|
||||
Err(err) => info!("update failed: {}", err),
|
||||
Ok(()) => info!("database pragma/schema initialized and ready"),
|
||||
Err(err) => error!("update failed: {}", err),
|
||||
}
|
||||
loop {
|
||||
// call blocking read on channel
|
||||
|
@ -88,13 +88,12 @@ pub async fn db_writer(
|
|||
break;
|
||||
}
|
||||
let event = next_event.unwrap();
|
||||
info!("Got event to write: {}", event.get_event_id_prefix());
|
||||
match write_event(&mut conn, &event) {
|
||||
Ok(updated) => {
|
||||
if updated == 0 {
|
||||
info!("nothing inserted (dupe?)");
|
||||
} else {
|
||||
info!("persisted new event");
|
||||
info!("persisted event: {}", event.get_event_id_prefix());
|
||||
}
|
||||
}
|
||||
Err(err) => {
|
||||
|
@ -251,7 +250,7 @@ fn query_from_sub(sub: &Subscription) -> String {
|
|||
query.push_str(" WHERE ");
|
||||
query.push_str(&filter_clauses.join(" OR "));
|
||||
}
|
||||
debug!("Query: {}", query);
|
||||
debug!("query string: {}", query);
|
||||
query
|
||||
}
|
||||
|
||||
|
@ -270,8 +269,8 @@ pub async fn db_query(
|
|||
let conn =
|
||||
Connection::open_with_flags(Path::new(DB_FILE), OpenFlags::SQLITE_OPEN_READ_ONLY)
|
||||
.unwrap();
|
||||
info!("Opened database for reading");
|
||||
info!("Going to query for: {:?}", sub);
|
||||
debug!("opened database for reading");
|
||||
debug!("going to query for: {:?}", sub);
|
||||
// generate SQL query
|
||||
let q = query_from_sub(&sub);
|
||||
// execute the query
|
||||
|
|
58
src/main.rs
58
src/main.rs
|
@ -35,7 +35,7 @@ fn main() -> Result<(), Error> {
|
|||
// start tokio
|
||||
rt.block_on(async {
|
||||
let listener = TcpListener::bind(&addr).await.expect("Failed to bind");
|
||||
info!("Listening on: {}", addr);
|
||||
info!("listening on: {}", addr);
|
||||
// all client-submitted valid events are broadcast to every
|
||||
// other client on this channel. This should be large enough
|
||||
// to accomodate slower readers (messages are dropped if
|
||||
|
@ -53,7 +53,7 @@ fn main() -> Result<(), Error> {
|
|||
// listen for ctrl-c interruupts
|
||||
tokio::spawn(async move {
|
||||
tokio::signal::ctrl_c().await.unwrap();
|
||||
info!("Shutting down due to SIGINT");
|
||||
info!("shutting down due to SIGINT");
|
||||
ctrl_c_shutdown.send(()).ok();
|
||||
});
|
||||
let mut stop_listening = invoke_shutdown.subscribe();
|
||||
|
@ -104,7 +104,11 @@ async fn nostr_server(
|
|||
// available to the executing query so it knows to stop.
|
||||
//let (abandon_query_tx, _) = oneshot::channel::<()>();
|
||||
let mut running_queries: HashMap<String, oneshot::Sender<()>> = HashMap::new();
|
||||
|
||||
// for stats, keep track of how many events the client published,
|
||||
// and how many it received from queries.
|
||||
let mut client_published_event_count: usize = 0;
|
||||
let mut client_received_event_count: usize = 0;
|
||||
info!("new connection for client: {}", cid);
|
||||
loop {
|
||||
tokio::select! {
|
||||
_ = shutdown.recv() => {
|
||||
|
@ -112,23 +116,24 @@ async fn nostr_server(
|
|||
break;
|
||||
},
|
||||
Some(query_result) = query_rx.recv() => {
|
||||
info!("Got query result");
|
||||
// database informed us of a query result we asked for
|
||||
let res = EventRes(query_result.sub_id,query_result.event);
|
||||
client_received_event_count += 1;
|
||||
nostr_stream.send(res).await.ok();
|
||||
},
|
||||
Ok(global_event) = bcast_rx.recv() => {
|
||||
// ignoring closed broadcast errors, there will always be one sender available.
|
||||
// Is there a subscription for this event?
|
||||
// an event has been broadcast to all clients
|
||||
// first check if there is a subscription for this event.
|
||||
let sub_name_opt = conn.get_matching_subscription(&global_event);
|
||||
if sub_name_opt.is_some() {
|
||||
let sub_name = sub_name_opt.unwrap();
|
||||
let event_str = serde_json::to_string(&global_event);
|
||||
if event_str.is_ok() {
|
||||
info!("sub match: client: {}, sub: {}, event: {}",
|
||||
cid, sub_name,
|
||||
global_event.get_event_id_prefix());
|
||||
if let Some(sub_name) = sub_name_opt {
|
||||
// TODO: serialize at broadcast time, instead of
|
||||
// once for each consumer.
|
||||
if let Ok(event_str) = serde_json::to_string(&global_event) {
|
||||
debug!("sub match: client: {}, sub: {}, event: {}",
|
||||
cid, sub_name,
|
||||
global_event.get_event_id_prefix());
|
||||
// create an event response and send it
|
||||
let res = EventRes(sub_name.to_owned(),event_str.unwrap());
|
||||
let res = EventRes(sub_name.to_owned(),event_str);
|
||||
nostr_stream.send(res).await.ok();
|
||||
} else {
|
||||
warn!("could not convert event to string");
|
||||
|
@ -145,20 +150,21 @@ async fn nostr_server(
|
|||
match parsed {
|
||||
Ok(e) => {
|
||||
let id_prefix:String = e.id.chars().take(8).collect();
|
||||
info!("Successfully parsed/validated event: {} from client: {}", id_prefix, cid);
|
||||
debug!("successfully parsed/validated event: {} from client: {}", id_prefix, cid);
|
||||
// Write this to the database
|
||||
event_tx.send(e.clone()).await.ok();
|
||||
client_published_event_count += 1;
|
||||
// send this event to everyone listening.
|
||||
let bcast_res = broadcast.send(e);
|
||||
if bcast_res.is_err() {
|
||||
warn!("Could not send broadcast message: {:?}", bcast_res);
|
||||
warn!("could not send broadcast message: {:?}", bcast_res);
|
||||
}
|
||||
},
|
||||
Err(_) => {info!("Client {} sent an invalid event", cid)}
|
||||
Err(_) => {info!("client {} sent an invalid event", cid)}
|
||||
}
|
||||
},
|
||||
Some(Ok(SubMsg(s))) => {
|
||||
info!("Client {} requesting a subscription", cid);
|
||||
debug!("client {} requesting a subscription", cid);
|
||||
|
||||
// subscription handling consists of:
|
||||
// * registering the subscription so future events can be matched
|
||||
|
@ -176,22 +182,25 @@ async fn nostr_server(
|
|||
let parsed : Result<Close> = Result::<Close>::from(cc);
|
||||
match parsed {
|
||||
Ok(c) => {
|
||||
// check if a query is currently
|
||||
// running, and remove it if so.
|
||||
let stop_tx = running_queries.remove(&c.id);
|
||||
if let Some(tx) = stop_tx {
|
||||
info!("Removing query, telling DB to abandon query");
|
||||
tx.send(()).ok();
|
||||
}
|
||||
// stop checking new events against
|
||||
// the subscription
|
||||
conn.unsubscribe(c);
|
||||
},
|
||||
Err(_) => {info!("Invalid command ignored");}
|
||||
Err(_) => {info!("invalid command ignored");}
|
||||
}
|
||||
},
|
||||
None => {
|
||||
info!("normal websocket close from client: {}",cid);
|
||||
debug!("normal websocket close from client: {}",cid);
|
||||
break;
|
||||
},
|
||||
Some(Err(Error::ConnError)) => {
|
||||
info!("got connection close/error, disconnecting client: {}",cid);
|
||||
debug!("got connection close/error, disconnecting client: {}",cid);
|
||||
break;
|
||||
}
|
||||
Some(Err(e)) => {
|
||||
|
@ -205,5 +214,8 @@ async fn nostr_server(
|
|||
for (_, stop_tx) in running_queries.into_iter() {
|
||||
stop_tx.send(()).ok();
|
||||
}
|
||||
info!("stopping client connection: {}", cid);
|
||||
info!(
|
||||
"stopping connection for client: {} (client sent {} event(s), received {})",
|
||||
cid, client_published_event_count, client_received_event_count
|
||||
);
|
||||
}
|
||||
|
|
|
@ -57,7 +57,7 @@ impl Stream for NostrStream {
|
|||
match parsed_res {
|
||||
Ok(m) => Ok(m),
|
||||
Err(e) => {
|
||||
debug!("Proto parse error: {:?}", e);
|
||||
debug!("proto parse error: {:?}", e);
|
||||
Err(Error::ProtoParseError)
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue
Block a user