From 458099cef07c4c32918ed69f9f15806cec5d1749 Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Fri, 21 Apr 2017 01:53:47 +0100
Subject: [PATCH] Add an attention parser.

---
 src/attention.rs | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/lib.rs       |  3 +++
 src/ns.rs        |  3 +++
 3 files changed, 50 insertions(+)
 create mode 100644 src/attention.rs

diff --git a/src/attention.rs b/src/attention.rs
new file mode 100644
index 00000000..2438dc6b
--- /dev/null
+++ b/src/attention.rs
@@ -0,0 +1,44 @@
+use minidom::Element;
+
+use error::Error;
+
+use ns;
+
+#[derive(Debug, Clone)]
+pub enum Attention {
+    Attention,
+}
+
+pub fn parse_attention(root: &Element) -> Result<Attention, Error> {
+    if !root.is("attention", ns::ATTENTION) {
+        return Err(Error::ParseError("This is not an attention element."));
+    }
+    for _ in root.children() {
+        return Err(Error::ParseError("Unknown child in attention element."));
+    }
+    Ok(Attention::Attention)
+}
+
+#[cfg(test)]
+mod tests {
+    use minidom::Element;
+    use error::Error;
+    use attention;
+
+    #[test]
+    fn test_simple() {
+        let elem: Element = "<attention xmlns='urn:xmpp:attention:0'/>".parse().unwrap();
+        attention::parse_attention(&elem).unwrap();
+    }
+
+    #[test]
+    fn test_invalid_child() {
+        let elem: Element = "<attention xmlns='urn:xmpp:attention:0'><coucou/></attention>".parse().unwrap();
+        let error = attention::parse_attention(&elem).unwrap_err();
+        let message = match error {
+            Error::ParseError(string) => string,
+            _ => panic!(),
+        };
+        assert_eq!(message, "Unknown child in attention element.");
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index dc8fcdb1..2ba49d65 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -42,6 +42,9 @@ pub mod ping;
 /// XEP-0221: Data Forms Media Element
 pub mod media_element;
 
+/// XEP-0224: Attention
+pub mod attention;
+
 /// XEP-0390: Entity Capabilities 2.0
 pub mod ecaps2;
 
diff --git a/src/ns.rs b/src/ns.rs
index 5bcf6d1e..2b5ba3f1 100644
--- a/src/ns.rs
+++ b/src/ns.rs
@@ -25,6 +25,9 @@ pub const PING: &'static str = "urn:xmpp:ping";
 /// XEP-0221: Data Forms Media Element
 pub const MEDIA_ELEMENT: &'static str = "urn:xmpp:media-element";
 
+/// XEP-0224: Attention
+pub const ATTENTION: &'static str = "urn:xmpp:attention:0";
+
 /// XEP-0390: Entity Capabilities 2.0
 pub const ECAPS2: &'static str = "urn:xmpp:caps";
 /// XEP-0390: Entity Capabilities 2.0