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ecaps2: Switch to Into/TryFrom.

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This commit is contained in:
Emmanuel Gil Peyrot 2017-05-06 20:58:22 +01:00
parent 2f05d02d23
commit f963715e77
2 changed files with 33 additions and 30 deletions
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31
src/ecaps2.rs
View file

@ -25,12 +25,15 @@ pub struct ECaps2 {
hashes: Vec<Hash>,
}
pub fn parse_ecaps2(root: &Element) -> Result<ECaps2, Error> {
if !root.is("c", ns::ECAPS2) {
impl<'a> TryFrom<&'a Element> for ECaps2 {
type Error = Error;
fn try_from(elem: &'a Element) -> Result<ECaps2, Error> {
if !elem.is("c", ns::ECAPS2) {
return Err(Error::ParseError("This is not an ecaps2 element."));
}
let mut hashes = vec!();
for child in root.children() {
for child in elem.children() {
if child.is("hash", ns::HASHES) {
let hash = Hash::try_from(child)?;
hashes.push(hash);
@ -41,17 +44,18 @@ pub fn parse_ecaps2(root: &Element) -> Result<ECaps2, Error> {
Ok(ECaps2 {
hashes: hashes,
})
}
}
pub fn serialise(ecaps2: &ECaps2) -> Element {
let mut c = Element::builder("c")
impl<'a> Into<Element> for &'a ECaps2 {
fn into(self) -> Element {
Element::builder("c")
.ns(ns::ECAPS2)
.build();
for hash in ecaps2.hashes.clone() {
let hash_elem = (&hash).into();
c.append_child(hash_elem);
.append(self.hashes.iter()
.map(|hash| hash.into())
.collect::<Vec<Element>>())
.build()
}
c
}
fn compute_item(field: &str) -> Vec<u8> {
@ -161,8 +165,7 @@ pub fn hash_ecaps2(data: &[u8], algo: &str) -> String {
#[cfg(test)]
mod tests {
use minidom::Element;
use error::Error;
use super::*;
use disco;
use ecaps2;
use base64;
@ -170,7 +173,7 @@ mod tests {
#[test]
fn test_parse() {
let elem: Element = "<c xmlns='urn:xmpp:caps'><hash xmlns='urn:xmpp:hashes:2' algo='sha-256'>K1Njy3HZBThlo4moOD5gBGhn0U0oK7/CbfLlIUDi6o4=</hash><hash xmlns='urn:xmpp:hashes:2' algo='sha3-256'>+sDTQqBmX6iG/X3zjt06fjZMBBqL/723knFIyRf0sg8=</hash></c>".parse().unwrap();
let ecaps2 = ecaps2::parse_ecaps2(&elem).unwrap();
let ecaps2 = ECaps2::try_from(&elem).unwrap();
assert_eq!(ecaps2.hashes.len(), 2);
assert_eq!(ecaps2.hashes[0].algo, "sha-256");
assert_eq!(ecaps2.hashes[0].hash, "K1Njy3HZBThlo4moOD5gBGhn0U0oK7/CbfLlIUDi6o4=");
@ -181,7 +184,7 @@ mod tests {
#[test]
fn test_invalid_child() {
let elem: Element = "<c xmlns='urn:xmpp:caps'><hash xmlns='urn:xmpp:hashes:2' algo='sha-256'>K1Njy3HZBThlo4moOD5gBGhn0U0oK7/CbfLlIUDi6o4=</hash><hash xmlns='urn:xmpp:hashes:1' algo='sha3-256'>+sDTQqBmX6iG/X3zjt06fjZMBBqL/723knFIyRf0sg8=</hash></c>".parse().unwrap();
let error = ecaps2::parse_ecaps2(&elem).unwrap_err();
let error = ECaps2::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),

8
src/presence.rs
View file

@ -18,7 +18,7 @@ use ns;
use stanza_error;
use delay::Delay;
use ecaps2;
use ecaps2::ECaps2;
#[derive(Debug, Clone, PartialEq)]
pub enum Show {
@ -53,7 +53,7 @@ pub enum PresencePayload {
Priority(Priority),
StanzaError(stanza_error::StanzaError),
Delay(Delay),
ECaps2(ecaps2::ECaps2),
ECaps2(ECaps2),
}
#[derive(Debug, Clone, PartialEq)]
@ -183,7 +183,7 @@ pub fn parse_presence(root: &Element) -> Result<Presence, Error> {
Some(PresencePayload::StanzaError(stanza_error))
} else if let Ok(delay) = Delay::try_from(elem) {
Some(PresencePayload::Delay(delay))
} else if let Ok(ecaps2) = ecaps2::parse_ecaps2(elem) {
} else if let Ok(ecaps2) = ECaps2::try_from(elem) {
Some(PresencePayload::ECaps2(ecaps2))
} else {
None
@ -228,7 +228,7 @@ pub fn serialise_payload(payload: &PresencePayload) -> Element {
},
PresencePayload::StanzaError(ref stanza_error) => stanza_error::serialise(stanza_error),
PresencePayload::Delay(ref delay) => delay.into(),
PresencePayload::ECaps2(ref ecaps2) => ecaps2::serialise(ecaps2),
PresencePayload::ECaps2(ref ecaps2) => ecaps2.into(),
}
}