pep/xmpp-rs
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disco: Switch to Into/TryFrom.

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This commit is contained in:
Emmanuel Gil Peyrot 2017-05-06 21:01:15 +01:00
parent f963715e77
commit 2b49d8aa53
3 changed files with 120 additions and 117 deletions
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48
src/disco.rs
View file

@ -34,8 +34,11 @@ pub struct Disco {
pub extensions: Vec<DataForm>,
}
pub fn parse_disco(root: &Element) -> Result<Disco, Error> {
if !root.is("query", ns::DISCO_INFO) {
impl<'a> TryFrom<&'a Element> for Disco {
type Error = Error;
fn try_from(elem: &'a Element) -> Result<Disco, Error> {
if !elem.is("query", ns::DISCO_INFO) {
return Err(Error::ParseError("This is not a disco#info element."));
}
@ -43,10 +46,10 @@ pub fn parse_disco(root: &Element) -> Result<Disco, Error> {
let mut features: Vec<Feature> = vec!();
let mut extensions: Vec<DataForm> = vec!();
let node = root.attr("node")
let node = elem.attr("node")
.and_then(|node| node.parse().ok());
for child in root.children() {
for child in elem.children() {
if child.is("feature", ns::DISCO_INFO) {
let feature = child.attr("var")
.ok_or(Error::ParseError("Feature must have a 'var' attribute."))?;
@ -110,13 +113,15 @@ pub fn parse_disco(root: &Element) -> Result<Disco, Error> {
extensions: extensions
})
}
}
pub fn serialise_disco(disco: &Disco) -> Element {
impl<'a> Into<Element> for &'a Disco {
fn into(self) -> Element {
let mut root = Element::builder("query")
.ns(ns::DISCO_INFO)
.attr("node", disco.node.clone())
.attr("node", self.node.clone())
.build();
for identity in &disco.identities {
for identity in &self.identities {
let identity_element = Element::builder("identity")
.ns(ns::DISCO_INFO)
.attr("category", identity.category.clone())
@ -126,29 +131,28 @@ pub fn serialise_disco(disco: &Disco) -> Element {
.build();
root.append_child(identity_element);
}
for feature in &disco.features {
for feature in &self.features {
let feature_element = Element::builder("feature")
.ns(ns::DISCO_INFO)
.attr("var", feature.var.clone())
.build();
root.append_child(feature_element);
}
for _ in &disco.extensions {
for _ in &self.extensions {
panic!("Not yet implemented!");
}
root
}
}
#[cfg(test)]
mod tests {
use minidom::Element;
use error::Error;
use disco;
use super::*;
#[test]
fn test_simple() {
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/><feature var='http://jabber.org/protocol/disco#info'/></query>".parse().unwrap();
let query = disco::parse_disco(&elem).unwrap();
let query = Disco::try_from(&elem).unwrap();
assert!(query.node.is_none());
assert_eq!(query.identities.len(), 1);
assert_eq!(query.features.len(), 1);
@ -158,7 +162,7 @@ mod tests {
#[test]
fn test_invalid() {
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><coucou/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -169,7 +173,7 @@ mod tests {
#[test]
fn test_invalid_identity() {
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -177,7 +181,7 @@ mod tests {
assert_eq!(message, "Identity must have a 'category' attribute.");
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category=''/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -185,7 +189,7 @@ mod tests {
assert_eq!(message, "Identity must have a non-empty 'category' attribute.");
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='coucou'/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -193,7 +197,7 @@ mod tests {
assert_eq!(message, "Identity must have a 'type' attribute.");
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='coucou' type=''/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -204,7 +208,7 @@ mod tests {
#[test]
fn test_invalid_feature() {
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><feature/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -216,7 +220,7 @@ mod tests {
#[ignore]
fn test_invalid_result() {
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'/>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -224,7 +228,7 @@ mod tests {
assert_eq!(message, "There must be at least one identity in disco#info.");
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -232,7 +236,7 @@ mod tests {
assert_eq!(message, "There must be at least one feature in disco#info.");
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/><feature var='http://jabber.org/protocol/disco#items'/></query>".parse().unwrap();
let error = disco::parse_disco(&elem).unwrap_err();
let error = Disco::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),

7
src/ecaps2.rs
View file

@ -166,7 +166,6 @@ pub fn hash_ecaps2(data: &[u8], algo: &str) -> String {
#[cfg(test)]
mod tests {
use super::*;
use disco;
use ecaps2;
use base64;
@ -195,7 +194,7 @@ mod tests {
#[test]
fn test_simple() {
let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/><feature var='http://jabber.org/protocol/disco#info'/></query>".parse().unwrap();
let disco = disco::parse_disco(&elem).unwrap();
let disco = Disco::try_from(&elem).unwrap();
let ecaps2 = ecaps2::compute_disco(&disco);
assert_eq!(ecaps2.len(), 54);
}
@ -258,7 +257,7 @@ mod tests {
105, 109, 101, 31, 28, 99, 108, 105, 101, 110, 116, 31, 109, 111,
98, 105, 108, 101, 31, 31, 66, 111, 109, 98, 117, 115, 77, 111,
100, 31, 30, 28, 28];
let disco = disco::parse_disco(&elem).unwrap();
let disco = Disco::try_from(&elem).unwrap();
let ecaps2 = ecaps2::compute_disco(&disco);
assert_eq!(ecaps2.len(), 0x1d9);
assert_eq!(ecaps2, expected);
@ -430,7 +429,7 @@ mod tests {
111, 110, 31, 48, 46, 49, 49, 46, 49, 45, 115, 118, 110, 45, 50,
48, 49, 49, 49, 50, 49, 54, 45, 109, 111, 100, 32, 40, 84, 99, 108,
47, 84, 107, 32, 56, 46,54, 98, 50, 41, 31, 30, 29, 28];
let disco = disco::parse_disco(&elem).unwrap();
let disco = Disco::try_from(&elem).unwrap();
let ecaps2 = ecaps2::compute_disco(&disco);
assert_eq!(ecaps2.len(), 0x543);
assert_eq!(ecaps2, expected);

8
src/iq.rs
View file

@ -17,7 +17,7 @@ use error::Error;
use ns;
use stanza_error;
use disco;
use disco::Disco;
use ibb::IBB;
use jingle::Jingle;
use ping::Ping;
@ -25,7 +25,7 @@ use ping::Ping;
/// Lists every known payload of a `<iq/>`.
#[derive(Debug, Clone)]
pub enum IqPayload {
Disco(disco::Disco),
Disco(Disco),
IBB(IBB),
Jingle(Jingle),
Ping(Ping),
@ -95,7 +95,7 @@ pub fn parse_iq(root: &Element) -> Result<Iq, Error> {
return Err(Error::ParseError("Wrong number of children in iq element."));
}
} else {
let parsed_payload = if let Ok(disco) = disco::parse_disco(elem) {
let parsed_payload = if let Ok(disco) = Disco::try_from(elem) {
Some(IqPayload::Disco(disco))
} else if let Ok(ibb) = IBB::try_from(elem) {
Some(IqPayload::IBB(ibb))
@ -152,7 +152,7 @@ pub fn parse_iq(root: &Element) -> Result<Iq, Error> {
pub fn serialise_payload(payload: &IqPayload) -> Element {
match *payload {
IqPayload::Disco(ref disco) => disco::serialise_disco(disco),
IqPayload::Disco(ref disco) => disco.into(),
IqPayload::IBB(ref ibb) => ibb.into(),
IqPayload::Jingle(ref jingle) => jingle.into(),
IqPayload::Ping(ref ping) => ping.into(),