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 message::MessagePayload;
 8
 9generate_element!(
10    /// Structure representing an `<encryption xmlns='urn:xmpp:eme:0'/>` element.
11    ExplicitMessageEncryption, "encryption", EME,
12    attributes: [
13        /// Namespace of the encryption scheme used.
14        namespace: String = "namespace" => required,
15
16        /// User-friendly name for the encryption scheme, should be `None` for OTR,
17        /// legacy OpenPGP and OX.
18        name: Option<String> = "name" => optional,
19    ]
20);
21
22impl MessagePayload for ExplicitMessageEncryption {}
23
24#[cfg(test)]
25mod tests {
26    use super::*;
27    use try_from::TryFrom;
28    use minidom::Element;
29    use error::Error;
30
31    #[test]
32    fn test_size() {
33        assert_size!(ExplicitMessageEncryption, 48);
34    }
35
36    #[test]
37    fn test_simple() {
38        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='urn:xmpp:otr:0'/>".parse().unwrap();
39        let encryption = ExplicitMessageEncryption::try_from(elem).unwrap();
40        assert_eq!(encryption.namespace, "urn:xmpp:otr:0");
41        assert_eq!(encryption.name, None);
42
43        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='some.unknown.mechanism' name='SuperMechanism'/>".parse().unwrap();
44        let encryption = ExplicitMessageEncryption::try_from(elem).unwrap();
45        assert_eq!(encryption.namespace, "some.unknown.mechanism");
46        assert_eq!(encryption.name, Some(String::from("SuperMechanism")));
47    }
48
49    #[test]
50    fn test_unknown() {
51        let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0'/>".parse().unwrap();
52        let error = ExplicitMessageEncryption::try_from(elem).unwrap_err();
53        let message = match error {
54            Error::ParseError(string) => string,
55            _ => panic!(),
56        };
57        assert_eq!(message, "This is not a encryption element.");
58    }
59
60    #[test]
61    fn test_invalid_child() {
62        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0'><coucou/></encryption>".parse().unwrap();
63        let error = ExplicitMessageEncryption::try_from(elem).unwrap_err();
64        let message = match error {
65            Error::ParseError(string) => string,
66            _ => panic!(),
67        };
68        assert_eq!(message, "Unknown child in encryption element.");
69    }
70
71    #[test]
72    fn test_serialise() {
73        let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='coucou'/>".parse().unwrap();
74        let eme = ExplicitMessageEncryption { namespace: String::from("coucou"), name: None };
75        let elem2 = eme.into();
76        assert_eq!(elem, elem2);
77    }
78}