80 lines
2.4 KiB
Rust
80 lines
2.4 KiB
Rust
// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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use std::convert::TryFrom;
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use minidom::Element;
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use error::Error;
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use ns;
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#[derive(Debug, Clone)]
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pub enum Receipt {
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Request,
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Received(String),
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}
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impl<'a> TryFrom<&'a Element> for Receipt {
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type Error = Error;
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fn try_from(elem: &'a Element) -> Result<Receipt, Error> {
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for _ in elem.children() {
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return Err(Error::ParseError("Unknown child in receipt element."));
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}
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if elem.is("request", ns::RECEIPTS) {
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Ok(Receipt::Request)
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} else if elem.is("received", ns::RECEIPTS) {
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let id = elem.attr("id").unwrap_or("").to_owned();
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Ok(Receipt::Received(id))
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} else {
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Err(Error::ParseError("This is not a receipt element."))
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}
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}
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}
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impl<'a> Into<Element> for &'a Receipt {
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fn into(self) -> Element {
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match *self {
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Receipt::Request => Element::builder("request")
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.ns(ns::RECEIPTS)
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.build(),
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Receipt::Received(ref id) => Element::builder("received")
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.ns(ns::RECEIPTS)
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.attr("id", id.clone())
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.build(),
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_simple() {
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let elem: Element = "<request xmlns='urn:xmpp:receipts'/>".parse().unwrap();
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Receipt::try_from(&elem).unwrap();
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let elem: Element = "<received xmlns='urn:xmpp:receipts'/>".parse().unwrap();
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Receipt::try_from(&elem).unwrap();
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let elem: Element = "<received xmlns='urn:xmpp:receipts' id='coucou'/>".parse().unwrap();
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Receipt::try_from(&elem).unwrap();
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}
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#[test]
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fn test_serialise() {
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let receipt = Receipt::Request;
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let elem: Element = (&receipt).into();
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assert!(elem.is("request", ns::RECEIPTS));
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let receipt = Receipt::Received("coucou".to_owned());
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let elem: Element = (&receipt).into();
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assert!(elem.is("received", ns::RECEIPTS));
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assert_eq!(elem.attr("id"), Some("coucou"));
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}
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}
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