Prepare for merge: Move all xmpp-parsers files into xmpp-parsers/

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

xmpp-parsers/src/component.rs

@@ -0,0 +1,87 @@
+// Copyright (c) 2018 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+use crate::util::helpers::PlainText;
+use digest::Digest;
+use sha1::Sha1;
+
+generate_element!(
+    /// The main authentication mechanism for components.
+    #[derive(Default)]
+    Handshake, "handshake", COMPONENT,
+    text: (
+        /// If Some, contains the hex-encoded SHA-1 of the concatenation of the
+        /// stream id and the password, and is used to authenticate against the
+        /// server.
+        ///
+        /// If None, it is the successful reply from the server, the stream is now
+        /// fully established and both sides can now exchange stanzas.
+        data: PlainText<Option<String>>
+    )
+);
+
+impl Handshake {
+    /// Creates a successful reply from a server.
+    pub fn new() -> Handshake {
+        Handshake::default()
+    }
+
+    /// Creates an authentication request from the component.
+    pub fn from_password_and_stream_id(password: &str, stream_id: &str) -> Handshake {
+        let input = String::from(stream_id) + password;
+        let hash = Sha1::digest(input.as_bytes());
+        let content = format!("{:x}", hash);
+        Handshake {
+            data: Some(content),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::Element;
+    use std::convert::TryFrom;
+
+    #[cfg(target_pointer_width = "32")]
+    #[test]
+    fn test_size() {
+        assert_size!(Handshake, 12);
+    }
+
+    #[cfg(target_pointer_width = "64")]
+    #[test]
+    fn test_size() {
+        assert_size!(Handshake, 24);
+    }
+
+    #[test]
+    fn test_simple() {
+        let elem: Element = "<handshake xmlns='jabber:component:accept'/>"
+            .parse()
+            .unwrap();
+        let handshake = Handshake::try_from(elem).unwrap();
+        assert_eq!(handshake.data, None);
+
+        let elem: Element = "<handshake xmlns='jabber:component:accept'>Coucou</handshake>"
+            .parse()
+            .unwrap();
+        let handshake = Handshake::try_from(elem).unwrap();
+        assert_eq!(handshake.data, Some(String::from("Coucou")));
+    }
+
+    #[test]
+    fn test_constructors() {
+        let handshake = Handshake::new();
+        assert_eq!(handshake.data, None);
+
+        let handshake = Handshake::from_password_and_stream_id("123456", "sid");
+        assert_eq!(
+            handshake.data,
+            Some(String::from("9accec263ab84a43c6037ccf7cd48cb1d3f6df8e"))
+        );
+    }
+}