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