133 lines
4.2 KiB
Rust
133 lines
4.2 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 jid::Jid;
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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 StanzaId {
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StanzaId {
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id: String,
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by: Jid,
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},
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OriginId {
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id: String,
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},
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}
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impl<'a> TryFrom<&'a Element> for StanzaId {
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type Error = Error;
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fn try_from(elem: &'a Element) -> Result<StanzaId, Error> {
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let is_stanza_id = elem.is("stanza-id", ns::SID);
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if !is_stanza_id && !elem.is("origin-id", ns::SID) {
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return Err(Error::ParseError("This is not a stanza-id or origin-id element."));
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}
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for _ in elem.children() {
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return Err(Error::ParseError("Unknown child in stanza-id or origin-id element."));
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}
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let id = get_attr!(elem, "id", required);
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Ok(if is_stanza_id {
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let by = get_attr!(elem, "by", required);
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StanzaId::StanzaId { id, by }
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} else {
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StanzaId::OriginId { id }
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})
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}
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}
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impl<'a> Into<Element> for &'a StanzaId {
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fn into(self) -> Element {
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match *self {
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StanzaId::StanzaId { ref id, ref by } => {
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Element::builder("stanza-id")
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.ns(ns::SID)
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.attr("id", id.clone())
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.attr("by", String::from(by.clone()))
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.build()
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},
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StanzaId::OriginId { ref id } => {
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Element::builder("origin-id")
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.ns(ns::SID)
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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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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::str::FromStr;
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#[test]
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fn test_simple() {
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let elem: Element = "<stanza-id xmlns='urn:xmpp:sid:0' id='coucou' by='coucou@coucou'/>".parse().unwrap();
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let stanza_id = StanzaId::try_from(&elem).unwrap();
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if let StanzaId::StanzaId { id, by } = stanza_id {
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assert_eq!(id, String::from("coucou"));
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assert_eq!(by, Jid::from_str("coucou@coucou").unwrap());
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} else {
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panic!();
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}
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let elem: Element = "<origin-id xmlns='urn:xmpp:sid:0' id='coucou'/>".parse().unwrap();
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let stanza_id = StanzaId::try_from(&elem).unwrap();
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if let StanzaId::OriginId { id } = stanza_id {
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assert_eq!(id, String::from("coucou"));
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} else {
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panic!();
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}
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}
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#[test]
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fn test_invalid_child() {
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let elem: Element = "<stanza-id xmlns='urn:xmpp:sid:0'><coucou/></stanza-id>".parse().unwrap();
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let error = StanzaId::try_from(&elem).unwrap_err();
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let message = match error {
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Error::ParseError(string) => string,
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_ => panic!(),
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};
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assert_eq!(message, "Unknown child in stanza-id or origin-id element.");
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}
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#[test]
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fn test_invalid_id() {
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let elem: Element = "<stanza-id xmlns='urn:xmpp:sid:0'/>".parse().unwrap();
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let error = StanzaId::try_from(&elem).unwrap_err();
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let message = match error {
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Error::ParseError(string) => string,
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_ => panic!(),
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};
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assert_eq!(message, "Required attribute 'id' missing.");
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}
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#[test]
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fn test_invalid_by() {
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let elem: Element = "<stanza-id xmlns='urn:xmpp:sid:0' id='coucou'/>".parse().unwrap();
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let error = StanzaId::try_from(&elem).unwrap_err();
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let message = match error {
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Error::ParseError(string) => string,
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_ => panic!(),
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};
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assert_eq!(message, "Required attribute 'by' missing.");
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}
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#[test]
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fn test_serialise() {
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let elem: Element = "<stanza-id xmlns='urn:xmpp:sid:0' id='coucou' by='coucou@coucou'/>".parse().unwrap();
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let stanza_id = StanzaId::StanzaId { id: String::from("coucou"), by: Jid::from_str("coucou@coucou").unwrap() };
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let elem2 = (&stanza_id).into();
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assert_eq!(elem, elem2);
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}
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}
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