tokio-xmpp: @id wasn't correctly added to every stanza

This commit moves the code adding @id to AsyncClient and SimpleClient,
instead of on the lower level send_stanza helper, which seemed to only
be used internally.

Support is also added for Component.

This removes the addition of @id on elements like <auth/> or <bind/>,
which probably weren't required anyway?

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

tokio-xmpp/src/client/async_client.rs

@@ -17,7 +17,7 @@ use crate::event::Event;
 use crate::happy_eyeballs::{connect_to_host, connect_with_srv};
 use crate::starttls::starttls;
 use crate::xmpp_codec::Packet;
-use crate::xmpp_stream;
+use crate::xmpp_stream::{self, make_id};
 use crate::{Error, ProtocolError};
 
 /// XMPP client connection and state
@@ -161,7 +161,11 @@ impl Client {
 
     /// Send stanza
     pub async fn send_stanza(&mut self, stanza: Element) -> Result<(), Error> {
-        self.send(Packet::Stanza(stanza)).await
+        let mut el: Element = stanza;
+        if el.attr("id").is_none() {
+            el.set_attr("id", make_id());
+        }
+        self.send(Packet::Stanza(el)).await
     }
 
     /// End connection by sending `</stream:stream>`

tokio-xmpp/src/client/simple_client.rs

@@ -17,7 +17,7 @@ use super::bind::bind;
 use crate::happy_eyeballs::connect_with_srv;
 use crate::starttls::starttls;
 use crate::xmpp_codec::Packet;
-use crate::xmpp_stream;
+use crate::xmpp_stream::{self, make_id};
 use crate::{Error, ProtocolError};
 
 /// A simple XMPP client connection
@@ -98,7 +98,11 @@ impl Client {
     where
         E: Into<Element>,
     {
-        self.send(Packet::Stanza(stanza.into())).await
+        let mut el: Element = stanza.into();
+        if el.attr("id").is_none() {
+            el.set_attr("id", make_id());
+        }
+        self.send(Packet::Stanza(el.into())).await
     }
 
     /// End connection by sending `</stream:stream>`

tokio-xmpp/src/component/mod.rs

@@ -12,6 +12,7 @@ use super::happy_eyeballs::connect_to_host;
 use super::xmpp_codec::Packet;
 use super::xmpp_stream;
 use super::Error;
+use crate::xmpp_stream::make_id;
 
 mod auth;
 
@@ -53,7 +54,11 @@ impl Component {
 
     /// Send stanza
     pub async fn send_stanza(&mut self, stanza: Element) -> Result<(), Error> {
-        self.send(stanza).await
+        let mut el: Element = stanza;
+        if el.attr("id").is_none() {
+            el.set_attr("id", make_id());
+        }
+        self.send(el).await
     }
 
     /// End connection

tokio-xmpp/src/xmpp_stream.rs

@@ -14,7 +14,7 @@ use crate::stream_start;
 use crate::xmpp_codec::{Packet, XMPPCodec};
 use crate::Error;
 
-fn make_id() -> String {
+pub(crate) fn make_id() -> String {
     let id: u64 = thread_rng().gen();
     format!("{}", id)
 }
@@ -78,11 +78,7 @@ impl<S: AsyncRead + AsyncWrite + Unpin> XMPPStream<S> {
 impl<S: AsyncRead + AsyncWrite + Unpin> XMPPStream<S> {
     /// Convenience method
     pub fn send_stanza<E: Into<Element>>(&mut self, e: E) -> Send<Self, Packet> {
-        let mut el: Element = e.into();
+        self.send(Packet::Stanza(e.into()))
-        if el.attr("id").is_none() {
-            el.set_attr("id", make_id());
-        }
-        self.send(Packet::Stanza(el))
     }
 }