xmpp_parsers/
eme.rs

1// Copyright (c) 2017 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 xso::{AsXml, FromXml};
8
9use crate::message::MessagePayload;
10use crate::ns;
11
12/// Structure representing an `<encryption xmlns='urn:xmpp:eme:0'/>` element.
13#[derive(FromXml, AsXml, Debug, Clone, PartialEq)]
14#[xml(namespace = ns::EME, name = "encryption")]
15pub struct ExplicitMessageEncryption {
16    /// Namespace of the encryption scheme used.
17    #[xml(attribute)]
18    pub namespace: String,
19
20    /// User-friendly name for the encryption scheme, should be `None` for OTR,
21    /// legacy OpenPGP and OX.
22    #[xml(attribute(default))]
23    pub name: Option<String>,
24}
25
26impl MessagePayload for ExplicitMessageEncryption {}
27
28#[cfg(test)]
29mod tests {
30    use super::*;
31    use minidom::Element;
32    use xso::error::{Error, FromElementError};
33
34    #[cfg(target_pointer_width = "32")]
35    #[test]
36    fn test_size() {
37        assert_size!(ExplicitMessageEncryption, 24);
38    }
39
40    #[cfg(target_pointer_width = "64")]
41    #[test]
42    fn test_size() {
43        assert_size!(ExplicitMessageEncryption, 48);
44    }
45
46    #[test]
47    fn test_simple() {
48        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='urn:xmpp:otr:0'/>"
49            .parse()
50            .unwrap();
51        let encryption = ExplicitMessageEncryption::try_from(elem).unwrap();
52        assert_eq!(encryption.namespace, "urn:xmpp:otr:0");
53        assert_eq!(encryption.name, None);
54
55        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='some.unknown.mechanism' name='SuperMechanism'/>".parse().unwrap();
56        let encryption = ExplicitMessageEncryption::try_from(elem).unwrap();
57        assert_eq!(encryption.namespace, "some.unknown.mechanism");
58        assert_eq!(encryption.name, Some(String::from("SuperMechanism")));
59    }
60
61    #[test]
62    fn test_unknown() {
63        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0'/>"
64            .parse()
65            .unwrap();
66        let error = ExplicitMessageEncryption::try_from(elem.clone()).unwrap_err();
67        let returned_elem = match error {
68            FromElementError::Mismatch(elem) => elem,
69            _ => panic!(),
70        };
71        assert_eq!(elem, returned_elem);
72    }
73
74    #[test]
75    #[cfg_attr(feature = "disable-validation", should_panic = "Result::unwrap_err")]
76    fn test_invalid_child() {
77        let elem: Element =
78            "<encryption xmlns='urn:xmpp:eme:0' namespace='urn:xmpp:otr:0'><coucou/></encryption>"
79                .parse()
80                .unwrap();
81        let error = ExplicitMessageEncryption::try_from(elem).unwrap_err();
82        let message = match error {
83            FromElementError::Invalid(Error::Other(string)) => string,
84            _ => panic!(),
85        };
86        assert_eq!(
87            message,
88            "Unknown child in ExplicitMessageEncryption element."
89        );
90    }
91
92    #[test]
93    fn test_serialise() {
94        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='coucou'/>"
95            .parse()
96            .unwrap();
97        let eme = ExplicitMessageEncryption {
98            namespace: String::from("coucou"),
99            name: None,
100        };
101        let elem2 = eme.into();
102        assert_eq!(elem, elem2);
103    }
104}
xmpp_parsers/eme.rs

xmpp_parsers/
eme.rs
