add xmpp-parsers dependency, and use it in the stanza plugin

Cargo.toml

@@ -16,6 +16,7 @@ gitlab = { repository = "lumi/xmpp-rs" }
 
 [dependencies]
 xml-rs = "0.4.1"
+xmpp-parsers = "0.3.0"
 openssl = "0.9.12"
 base64 = "0.5.2"
 minidom = "0.4.1"

src/lib.rs

@@ -1,6 +1,8 @@
 #![feature(raw)]
+#![feature(try_from)]
 
 extern crate xml;
+extern crate xmpp_parsers;
 extern crate openssl;
 extern crate minidom;
 extern crate base64;

src/plugins/stanza.rs

@@ -1,44 +1,16 @@
-use std::fmt::Debug;
-use std::any::Any;
+use std::convert::TryFrom;
 
 use plugin::PluginProxy;
 use event::{Event, EventHandler, ReceiveElement, Propagation, Priority};
-use minidom::Element;
-use jid::Jid;
 use ns;
 
-pub trait Stanza: Any + Debug {}
+pub use xmpp_parsers::message::Message;
+pub use xmpp_parsers::presence::Presence;
+pub use xmpp_parsers::iq::Iq;
 
-#[derive(Debug)]
-pub struct MessageEvent {
-    pub from: Option<Jid>,
-    pub to: Option<Jid>,
-    pub id: Option<String>,
-    pub type_: Option<String>,
-    pub payloads: Vec<Element>,
-}
-
-#[derive(Debug)]
-pub struct IqEvent {
-    pub from: Option<Jid>,
-    pub to: Option<Jid>,
-    pub id: Option<String>,
-    pub type_: Option<String>,
-    pub payloads: Vec<Element>,
-}
-
-#[derive(Debug)]
-pub struct PresenceEvent {
-    pub from: Option<Jid>,
-    pub to: Option<Jid>,
-    pub id: Option<String>,
-    pub type_: Option<String>,
-    pub payloads: Vec<Element>,
-}
-
-impl Event for MessageEvent {}
-impl Event for IqEvent {}
-impl Event for PresenceEvent {}
+impl Event for Message {}
+impl Event for Presence {}
+impl Event for Iq {}
 
 pub struct StanzaPlugin {
     proxy: PluginProxy,
@@ -60,36 +32,18 @@ impl EventHandler<ReceiveElement> for StanzaPlugin {
     fn handle(&self, evt: &ReceiveElement) -> Propagation {
         let elem = &evt.0;
 
-        let from = match elem.attr("from") { Some(from) => Some(from.parse().unwrap()), None => None };
-        let to = match elem.attr("to") { Some(to) => Some(to.parse().unwrap()), None => None };
-        let id = match elem.attr("id") { Some(id) => Some(id.parse().unwrap()), None => None };
-        let type_ = match elem.attr("type") { Some(type_) => Some(type_.parse().unwrap()), None => None };
-        let payloads = elem.children().cloned().collect::<Vec<_>>();
+        // TODO: make the handle take an Element instead of a reference.
+        let elem = elem.clone();
 
         if elem.is("message", ns::CLIENT) {
-            self.proxy.dispatch(MessageEvent {
-                from: from,
-                to: to,
-                id: id,
-                type_: type_,
-                payloads: payloads,
-            });
+            let message = Message::try_from(elem).unwrap();
+            self.proxy.dispatch(message);
         } else if elem.is("presence", ns::CLIENT) {
-            self.proxy.dispatch(PresenceEvent {
-                from: from,
-                to: to,
-                id: id,
-                type_: type_,
-                payloads: payloads,
-            });
+            let presence = Presence::try_from(elem).unwrap();
+            self.proxy.dispatch(presence);
         } else if elem.is("iq", ns::CLIENT) {
-            self.proxy.dispatch(IqEvent {
-                from: from,
-                to: to,
-                id: id,
-                type_: type_,
-                payloads: payloads,
-            });
+            let iq = Iq::try_from(elem).unwrap();
+            self.proxy.dispatch(iq);
         }
 
         Propagation::Continue