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 minidom::{Element, IntoElements, ElementEmitter};
8
9use error::Error;
10use jid::Jid;
11
12use ns;
13
14#[derive(Debug, Clone)]
15pub struct Delay {
16 pub from: Option<Jid>,
17 pub stamp: String,
18 pub data: Option<String>,
19}
20
21pub fn parse_delay(root: &Element) -> Result<Delay, Error> {
22 if !root.is("delay", ns::DELAY) {
23 return Err(Error::ParseError("This is not a delay element."));
24 }
25 for _ in root.children() {
26 return Err(Error::ParseError("Unknown child in delay element."));
27 }
28 let from = root.attr("from").and_then(|value| value.parse().ok());
29 let stamp = root.attr("stamp").ok_or(Error::ParseError("Mandatory argument 'stamp' not present in delay element."))?.to_owned();
30 let data = match root.text().as_ref() {
31 "" => None,
32 text => Some(text.to_owned()),
33 };
34 Ok(Delay {
35 from: from,
36 stamp: stamp,
37 data: data,
38 })
39}
40
41pub fn serialise(delay: &Delay) -> Element {
42 Element::builder("delay")
43 .ns(ns::DELAY)
44 .attr("from", delay.from.clone().and_then(|value| Some(String::from(value))))
45 .attr("stamp", delay.stamp.clone())
46 .append(delay.data.clone())
47 .build()
48}
49
50impl IntoElements for Delay {
51 fn into_elements(self, emitter: &mut ElementEmitter) {
52 let elem = serialise(&self);
53 emitter.append_child(elem)
54 }
55}
56
57#[cfg(test)]
58mod tests {
59 use std::str::FromStr;
60 use minidom::Element;
61 use error::Error;
62 use jid::Jid;
63 use delay;
64
65 #[test]
66 fn test_simple() {
67 let elem: Element = "<delay xmlns='urn:xmpp:delay' from='capulet.com' stamp='2002-09-10T23:08:25Z'/>".parse().unwrap();
68 let delay = delay::parse_delay(&elem).unwrap();
69 assert_eq!(delay.from, Some(Jid::from_str("capulet.com").unwrap()));
70 assert_eq!(delay.stamp, "2002-09-10T23:08:25Z");
71 assert_eq!(delay.data, None);
72 }
73
74 #[test]
75 fn test_unknown() {
76 let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0'/>".parse().unwrap();
77 let error = delay::parse_delay(&elem).unwrap_err();
78 let message = match error {
79 Error::ParseError(string) => string,
80 _ => panic!(),
81 };
82 assert_eq!(message, "This is not a delay element.");
83 }
84
85 #[test]
86 fn test_invalid_child() {
87 let elem: Element = "<delay xmlns='urn:xmpp:delay'><coucou/></delay>".parse().unwrap();
88 let error = delay::parse_delay(&elem).unwrap_err();
89 let message = match error {
90 Error::ParseError(string) => string,
91 _ => panic!(),
92 };
93 assert_eq!(message, "Unknown child in delay element.");
94 }
95
96 #[test]
97 fn test_serialise() {
98 let elem: Element = "<delay xmlns='urn:xmpp:delay' stamp='2002-09-10T23:08:25Z'/>".parse().unwrap();
99 let delay = delay::Delay {
100 from: None,
101 stamp: "2002-09-10T23:08:25Z".to_owned(),
102 data: None,
103 };
104 let elem2 = delay::serialise(&delay);
105 assert_eq!(elem, elem2);
106 }
107
108 #[test]
109 fn test_serialise_data() {
110 let elem: Element = "<delay xmlns='urn:xmpp:delay' from='juliet@example.org' stamp='2002-09-10T23:08:25Z'>Reason</delay>".parse().unwrap();
111 let delay = delay::Delay {
112 from: Some(Jid::from_str("juliet@example.org").unwrap()),
113 stamp: "2002-09-10T23:08:25Z".to_owned(),
114 data: Some(String::from("Reason")),
115 };
116 let elem2 = delay::serialise(&delay);
117 assert_eq!(elem, elem2);
118 }
119}