@@ -9,10 +9,16 @@ use futures::{Future, Stream, Sink, future};
use tokio_xmpp::Client;
fn main() {
+ // Tokio_core context
let mut core = Core::new().unwrap();
+ // Client instance
let client = Client::new("astrobot@example.org", "", &core.handle()).unwrap();
+ // Make the two interfaces for sending and receiving independent
+ // of each other so we can move one into a closure.
let (sink, stream) = client.split();
+ // Wrap sink in Option so that we can take() it for the send(self)
+ // to consume and return it back when ready.
let mut sink = Some(sink);
let mut send = move |stanza| {
sink = Some(
@@ -23,38 +29,35 @@ fn main() {
.expect("sink.send")
);
};
+ // Main loop, processes events
let done = stream.for_each(|event| {
- let result: Box<Future<Item=(), Error=String>> =
- if event.is_online() {
- println!("Online!");
+ if event.is_online() {
+ println!("Online!");
- let presence = make_presence();
- send(presence);
- Box::new(
- future::ok(())
- )
- } else if let Some(stanza) = event.as_stanza() {
- if stanza.name == "message" &&
- stanza.get_attribute("type", None) != Some("error") {
- let from = stanza.get_attribute("from", None);
- let body = stanza.get_child("body", Some("jabber:client"))
- .map(|el| el.content_str());
+ let presence = make_presence();
+ send(presence);
+ } else if let Some(stanza) = event.as_stanza() {
+ if stanza.name == "message" &&
+ stanza.get_attribute("type", None) != Some("error") {
+ // This is a message we'll echo
+ let from = stanza.get_attribute("from", None);
+ let body = stanza.get_child("body", Some("jabber:client"))
+ .map(|el| el.content_str());
- match (from.as_ref(), body) {
- (Some(from), Some(body)) => {
- let reply = make_reply(from, body);
- send(reply);
- },
- _ => (),
- };
- }
- Box::new(future::ok(()))
- } else {
- Box::new(future::ok(()))
- };
- result
+ match (from.as_ref(), body) {
+ (Some(from), Some(body)) => {
+ let reply = make_reply(from, body);
+ send(reply);
+ },
+ _ => (),
+ };
+ }
+ }
+
+ Box::new(future::ok(()))
});
-
+
+ // Start polling `done`
match core.run(done) {
Ok(_) => (),
Err(e) => {
@@ -64,6 +67,7 @@ fn main() {
}
}
+// Construct a <presence/>
fn make_presence() -> xml::Element {
let mut presence = xml::Element::new("presence".to_owned(), None, vec![]);
presence.tag(xml::Element::new("status".to_owned(), None, vec![]))
@@ -73,6 +77,7 @@ fn make_presence() -> xml::Element {
presence
}
+// Construct a chat <message/>
fn make_reply(to: &str, body: String) -> xml::Element {
let mut message = xml::Element::new(
"message".to_owned(),