xmpp stream error

crates/lavina-core/src/player.rs

@@ -616,6 +616,7 @@ pub enum ConnectionMessage {
     Stop(StopReason),
 }
 
+#[derive(Debug)]
 pub enum StopReason {
     ServerShutdown,
     InternalError,

crates/projection-xmpp/src/lib.rs

@@ -23,7 +23,7 @@ use tokio_rustls::rustls::{Certificate, PrivateKey};
 use tokio_rustls::TlsAcceptor;
 
 use lavina_core::auth::{Authenticator, Verdict};
-use lavina_core::player::{ConnectionMessage, PlayerConnection, PlayerId, PlayerRegistry};
+use lavina_core::player::{ConnectionMessage, PlayerConnection, PlayerId, PlayerRegistry, StopReason};
 use lavina_core::prelude::*;
 use lavina_core::repo::Storage;
 use lavina_core::room::RoomRegistry;
@@ -31,6 +31,7 @@ use lavina_core::terminator::Terminator;
 use lavina_core::LavinaCore;
 use proto_xmpp::bind::{Name, Resource};
 use proto_xmpp::stream::*;
+use proto_xmpp::streamerror::{StreamError, StreamErrorKind};
 use proto_xmpp::xml::{Continuation, FromXml, Parser, ToXml};
 use sasl::AuthBody;
 
@@ -404,12 +405,30 @@ async fn socket_final(
                         events.clear();
                         xml_writer.get_mut().flush().await?;
                     }
-                    Some(ConnectionMessage::Stop(_)) => {
+                    Some(ConnectionMessage::Stop(reason)) => {
-                        tracing::debug!("Connection is being terminated");
+                        tracing::debug!("Connection is being terminated: {reason:?}");
+                        let kind = match reason {
+                            StopReason::ServerShutdown => StreamErrorKind::SystemShutdown,
+                            StopReason::InternalError => StreamErrorKind::InternalServerError,
+                        };
+                        StreamError { kind }.serialize(&mut events);
+                        ServerStreamEnd.serialize(&mut events);
+                        for i in &events {
+                            xml_writer.write_event_async(i).await?;
+                        }
+                        events.clear();
+                        xml_writer.get_mut().flush().await?;
                         break;
                     }
                     None => {
-                        log::warn!("Player is terminated, must terminate the connection");
+                        log::error!("Player is terminated, must terminate the connection");
+                        StreamError { kind: StreamErrorKind::SystemShutdown }.serialize(&mut events);
+                        ServerStreamEnd.serialize(&mut events);
+                        for i in &events {
+                            xml_writer.write_event_async(i).await?;
+                        }
+                        events.clear();
+                        xml_writer.get_mut().flush().await?;
                         break;
                     }
                 }

crates/proto-xmpp/src/lib.rs

@@ -10,6 +10,7 @@ pub mod sasl;
 pub mod session;
 pub mod stanzaerror;
 pub mod stream;
+pub mod streamerror;
 pub mod tls;
 pub mod xml;
 

crates/proto-xmpp/src/streamerror.rs

@@ -0,0 +1,41 @@
+use crate::xml::ToXml;
+use quick_xml::events::{BytesEnd, BytesStart, Event};
+
+/// Stream error condition
+///
+/// [Spec](https://xmpp.org/rfcs/rfc6120.html#streams-error-conditions).
+pub enum StreamErrorKind {
+    /// The server has experienced a misconfiguration or other internal error that prevents it from servicing the stream.
+    InternalServerError,
+    /// The server is being shut down and all active streams are being closed.
+    SystemShutdown,
+}
+impl StreamErrorKind {
+    pub fn from_str(s: &str) -> Option<Self> {
+        match s {
+            "internal-server-error" => Some(Self::InternalServerError),
+            "system-shutdown" => Some(Self::SystemShutdown),
+            _ => None,
+        }
+    }
+    pub fn as_str(&self) -> &'static str {
+        match self {
+            Self::InternalServerError => "internal-server-error",
+            Self::SystemShutdown => "system-shutdown",
+        }
+    }
+}
+
+pub struct StreamError {
+    pub kind: StreamErrorKind,
+}
+impl ToXml for StreamError {
+    fn serialize(&self, events: &mut Vec<Event<'static>>) {
+        events.push(Event::Start(BytesStart::new("stream:error")));
+        events.push(Event::Empty(BytesStart::new(format!(
+            r#"{} xmlns="urn:ietf:params:xml:ns:xmpp-streams""#,
+            self.kind.as_str()
+        ))));
+        events.push(Event::End(BytesEnd::new("stream:error")));
+    }
+}