1// Copyright (c) 2018 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
2//
3// This Source Code Form is subject to the terms of the Mozilla Public
4// License, v. 2.0. If a copy of the MPL was not distributed with this
5// file, You can obtain one at http://mozilla.org/MPL/2.0/.
6
7use crate::util::helpers::PlainText;
8use digest::Digest;
9use sha1::Sha1;
10
11generate_element!(
12 /// The main authentication mechanism for components.
13 #[derive(Default)]
14 Handshake, "handshake", COMPONENT,
15 text: (
16 /// If Some, contains the hex-encoded SHA-1 of the concatenation of the
17 /// stream id and the password, and is used to authenticate against the
18 /// server.
19 ///
20 /// If None, it is the successful reply from the server, the stream is now
21 /// fully established and both sides can now exchange stanzas.
22 data: PlainText<Option<String>>
23 )
24);
25
26impl Handshake {
27 /// Creates a successful reply from a server.
28 pub fn new() -> Handshake {
29 Handshake::default()
30 }
31
32 /// Creates an authentication request from the component.
33 pub fn from_password_and_stream_id(password: &str, stream_id: &str) -> Handshake {
34 let input = String::from(stream_id) + password;
35 let hash = Sha1::digest(input.as_bytes());
36 let content = format!("{:x}", hash);
37 Handshake {
38 data: Some(content),
39 }
40 }
41}
42
43#[cfg(test)]
44mod tests {
45 use super::*;
46 use crate::Element;
47 use std::convert::TryFrom;
48
49 #[cfg(target_pointer_width = "32")]
50 #[test]
51 fn test_size() {
52 assert_size!(Handshake, 12);
53 }
54
55 #[cfg(target_pointer_width = "64")]
56 #[test]
57 fn test_size() {
58 assert_size!(Handshake, 24);
59 }
60
61 #[test]
62 fn test_simple() {
63 let elem: Element = "<handshake xmlns='jabber:component:accept'/>"
64 .parse()
65 .unwrap();
66 let handshake = Handshake::try_from(elem).unwrap();
67 assert_eq!(handshake.data, None);
68
69 let elem: Element = "<handshake xmlns='jabber:component:accept'>Coucou</handshake>"
70 .parse()
71 .unwrap();
72 let handshake = Handshake::try_from(elem).unwrap();
73 assert_eq!(handshake.data, Some(String::from("Coucou")));
74 }
75
76 #[test]
77 fn test_constructors() {
78 let handshake = Handshake::new();
79 assert_eq!(handshake.data, None);
80
81 let handshake = Handshake::from_password_and_stream_id("123456", "sid");
82 assert_eq!(
83 handshake.data,
84 Some(String::from("9accec263ab84a43c6037ccf7cd48cb1d3f6df8e"))
85 );
86 }
87}