stanza_error: Switch to Into/TryFrom.

This commit is contained in:
Emmanuel Gil Peyrot 2017-05-06 21:13:53 +01:00
parent 418956c720
commit 04d90f22ee
4 changed files with 102 additions and 99 deletions

View file

@ -16,7 +16,7 @@ use error::Error;
use ns;
use stanza_error;
use stanza_error::StanzaError;
use disco::Disco;
use ibb::IBB;
use jingle::Jingle;
@ -42,7 +42,7 @@ pub enum IqType {
Get(IqPayloadType),
Set(IqPayloadType),
Result(Option<IqPayloadType>),
Error(stanza_error::StanzaError),
Error(StanzaError),
}
impl IntoAttributeValue for IqType {
@ -90,7 +90,7 @@ pub fn parse_iq(root: &Element) -> Result<Iq, Error> {
if error_payload.is_some() {
return Err(Error::ParseError("Wrong number of children in iq element."));
}
error_payload = Some(stanza_error::parse_stanza_error(elem)?);
error_payload = Some(StanzaError::try_from(elem)?);
} else if root.children().collect::<Vec<_>>().len() != 2 {
return Err(Error::ParseError("Wrong number of children in iq element."));
}
@ -171,7 +171,7 @@ pub fn serialise(iq: &Iq) -> Element {
IqType::Get(IqPayloadType::XML(elem))
| IqType::Set(IqPayloadType::XML(elem))
| IqType::Result(Some(IqPayloadType::XML(elem))) => elem,
IqType::Error(error) => stanza_error::serialise(&error),
IqType::Error(error) => (&error).into(),
IqType::Get(IqPayloadType::Parsed(payload))
| IqType::Set(IqPayloadType::Parsed(payload))
| IqType::Result(Some(IqPayloadType::Parsed(payload))) => serialise_payload(&payload),
@ -183,11 +183,9 @@ pub fn serialise(iq: &Iq) -> Element {
#[cfg(test)]
mod tests {
use minidom::Element;
use error::Error;
use super::*;
use iq;
use stanza_error;
use disco;
use stanza_error::{ErrorType, DefinedCondition};
#[test]
fn test_require_type() {
@ -275,9 +273,9 @@ mod tests {
assert_eq!(iq.id, None);
match iq.payload {
iq::IqType::Error(error) => {
assert_eq!(error.type_, stanza_error::ErrorType::Cancel);
assert_eq!(error.type_, ErrorType::Cancel);
assert_eq!(error.by, None);
assert_eq!(error.defined_condition, stanza_error::DefinedCondition::ServiceUnavailable);
assert_eq!(error.defined_condition, DefinedCondition::ServiceUnavailable);
assert_eq!(error.texts.len(), 0);
assert_eq!(error.other, None);
},
@ -314,7 +312,7 @@ mod tests {
let elem: Element = "<iq xmlns='jabber:client' type='get'><query xmlns='http://jabber.org/protocol/disco#info'/></iq>".parse().unwrap();
let iq = iq::parse_iq(&elem).unwrap();
assert!(match iq.payload {
iq::IqType::Get(iq::IqPayloadType::Parsed(iq::IqPayload::Disco(disco::Disco { .. }))) => true,
IqType::Get(IqPayloadType::Parsed(IqPayload::Disco(Disco { .. }))) => true,
_ => false,
});
}

View file

@ -16,7 +16,7 @@ use error::Error;
use ns;
use body;
use stanza_error;
use stanza_error::StanzaError;
use chatstates::ChatState;
use receipts::Receipt;
use delay::Delay;
@ -28,7 +28,7 @@ use eme::ExplicitMessageEncryption;
#[derive(Debug, Clone)]
pub enum MessagePayload {
Body(body::Body),
StanzaError(stanza_error::StanzaError),
StanzaError(StanzaError),
ChatState(ChatState),
Receipt(Receipt),
Delay(Delay),
@ -113,7 +113,7 @@ pub fn parse_message(root: &Element) -> Result<Message, Error> {
for elem in root.children() {
let payload = if let Ok(body) = body::parse_body(elem) {
Some(MessagePayload::Body(body))
} else if let Ok(stanza_error) = stanza_error::parse_stanza_error(elem) {
} else if let Ok(stanza_error) = StanzaError::try_from(elem) {
Some(MessagePayload::StanzaError(stanza_error))
} else if let Ok(chatstate) = ChatState::try_from(elem) {
Some(MessagePayload::ChatState(chatstate))
@ -147,7 +147,7 @@ pub fn parse_message(root: &Element) -> Result<Message, Error> {
pub fn serialise_payload(payload: &MessagePayload) -> Element {
match *payload {
MessagePayload::Body(ref body) => body::serialise(body),
MessagePayload::StanzaError(ref stanza_error) => stanza_error::serialise(stanza_error),
MessagePayload::StanzaError(ref stanza_error) => stanza_error.into(),
MessagePayload::Attention(ref attention) => attention.into(),
MessagePayload::ChatState(ref chatstate) => chatstate.into(),
MessagePayload::Receipt(ref receipt) => receipt.into(),

View file

@ -16,7 +16,7 @@ use error::Error;
use ns;
use stanza_error;
use stanza_error::StanzaError;
use delay::Delay;
use ecaps2::ECaps2;
@ -51,7 +51,7 @@ pub enum PresencePayload {
Show(Show),
Status(Status),
Priority(Priority),
StanzaError(stanza_error::StanzaError),
StanzaError(StanzaError),
Delay(Delay),
ECaps2(ECaps2),
}
@ -179,7 +179,7 @@ pub fn parse_presence(root: &Element) -> Result<Presence, Error> {
}
priority = Some(Priority::from_str(elem.text().as_ref())?);
} else {
let payload = if let Ok(stanza_error) = stanza_error::parse_stanza_error(elem) {
let payload = if let Ok(stanza_error) = StanzaError::try_from(elem) {
Some(PresencePayload::StanzaError(stanza_error))
} else if let Ok(delay) = Delay::try_from(elem) {
Some(PresencePayload::Delay(delay))
@ -226,7 +226,7 @@ pub fn serialise_payload(payload: &PresencePayload) -> Element {
.append(format!("{}", priority))
.build()
},
PresencePayload::StanzaError(ref stanza_error) => stanza_error::serialise(stanza_error),
PresencePayload::StanzaError(ref stanza_error) => stanza_error.into(),
PresencePayload::Delay(ref delay) => delay.into(),
PresencePayload::ECaps2(ref ecaps2) => ecaps2.into(),
}

View file

@ -4,6 +4,7 @@
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
use std::convert::TryFrom;
use std::str::FromStr;
use std::collections::BTreeMap;
@ -149,104 +150,108 @@ pub struct StanzaError {
pub other: Option<Element>,
}
pub fn parse_stanza_error(root: &Element) -> Result<StanzaError, Error> {
if !root.is("error", ns::JABBER_CLIENT) {
return Err(Error::ParseError("This is not an error element."));
}
impl<'a> TryFrom<&'a Element> for StanzaError {
type Error = Error;
let type_ = root.attr("type")
.ok_or(Error::ParseError("Error must have a 'type' attribute."))?
.parse()?;
let by = root.attr("by")
.and_then(|by| by.parse().ok());
let mut defined_condition = None;
let mut texts = BTreeMap::new();
let mut other = None;
for child in root.children() {
if child.is("text", ns::XMPP_STANZAS) {
for _ in child.children() {
return Err(Error::ParseError("Unknown element in error text."));
}
let lang = child.attr("xml:lang").unwrap_or("").to_owned();
if let Some(_) = texts.insert(lang, child.text()) {
return Err(Error::ParseError("Text element present twice for the same xml:lang."));
}
} else if child.ns() == Some(ns::XMPP_STANZAS) {
if defined_condition.is_some() {
return Err(Error::ParseError("Error must not have more than one defined-condition."));
}
for _ in child.children() {
return Err(Error::ParseError("Unknown element in defined-condition."));
}
let condition = DefinedCondition::from_str(child.name())?;
defined_condition = Some(condition);
} else {
if other.is_some() {
return Err(Error::ParseError("Error must not have more than one other element."));
}
other = Some(child.clone());
fn try_from(elem: &'a Element) -> Result<StanzaError, Error> {
if !elem.is("error", ns::JABBER_CLIENT) {
return Err(Error::ParseError("This is not an error element."));
}
}
if defined_condition.is_none() {
return Err(Error::ParseError("Error must have a defined-condition."));
}
let defined_condition = defined_condition.unwrap();
let type_ = elem.attr("type")
.ok_or(Error::ParseError("Error must have a 'type' attribute."))?
.parse()?;
let by = elem.attr("by")
.and_then(|by| by.parse().ok());
let mut defined_condition = None;
let mut texts = BTreeMap::new();
let mut other = None;
Ok(StanzaError {
type_: type_,
by: by,
defined_condition: defined_condition,
texts: texts,
other: other,
})
for child in elem.children() {
if child.is("text", ns::XMPP_STANZAS) {
for _ in child.children() {
return Err(Error::ParseError("Unknown element in error text."));
}
let lang = child.attr("xml:lang").unwrap_or("").to_owned();
if let Some(_) = texts.insert(lang, child.text()) {
return Err(Error::ParseError("Text element present twice for the same xml:lang."));
}
} else if child.ns() == Some(ns::XMPP_STANZAS) {
if defined_condition.is_some() {
return Err(Error::ParseError("Error must not have more than one defined-condition."));
}
for _ in child.children() {
return Err(Error::ParseError("Unknown element in defined-condition."));
}
let condition = DefinedCondition::from_str(child.name())?;
defined_condition = Some(condition);
} else {
if other.is_some() {
return Err(Error::ParseError("Error must not have more than one other element."));
}
other = Some(child.clone());
}
}
if defined_condition.is_none() {
return Err(Error::ParseError("Error must have a defined-condition."));
}
let defined_condition = defined_condition.unwrap();
Ok(StanzaError {
type_: type_,
by: by,
defined_condition: defined_condition,
texts: texts,
other: other,
})
}
}
pub fn serialise(error: &StanzaError) -> Element {
let mut root = Element::builder("error")
.ns(ns::JABBER_CLIENT)
.attr("type", String::from(error.type_.clone()))
.attr("by", match error.by {
Some(ref by) => Some(String::from(by.clone())),
None => None,
})
.append(Element::builder(error.defined_condition.clone())
.ns(ns::XMPP_STANZAS)
.build())
.build();
for (lang, text) in error.texts.clone() {
let elem = Element::builder("text")
.ns(ns::XMPP_STANZAS)
.attr("xml:lang", lang)
.append(text)
.build();
root.append_child(elem);
impl<'a> Into<Element> for &'a StanzaError {
fn into(self) -> Element {
let mut root = Element::builder("error")
.ns(ns::JABBER_CLIENT)
.attr("type", String::from(self.type_.clone()))
.attr("by", match self.by {
Some(ref by) => Some(String::from(by.clone())),
None => None,
})
.append(Element::builder(self.defined_condition.clone())
.ns(ns::XMPP_STANZAS)
.build())
.build();
for (lang, text) in self.texts.clone() {
let elem = Element::builder("text")
.ns(ns::XMPP_STANZAS)
.attr("xml:lang", lang)
.append(text)
.build();
root.append_child(elem);
}
if let Some(ref other) = self.other {
root.append_child(other.clone());
}
root
}
if let Some(ref other) = error.other {
root.append_child(other.clone());
}
root
}
#[cfg(test)]
mod tests {
use minidom::Element;
use error::Error;
use stanza_error;
use super::*;
#[test]
fn test_simple() {
let elem: Element = "<error xmlns='jabber:client' type='cancel'><undefined-condition xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/></error>".parse().unwrap();
let error = stanza_error::parse_stanza_error(&elem).unwrap();
assert_eq!(error.type_, stanza_error::ErrorType::Cancel);
assert_eq!(error.defined_condition, stanza_error::DefinedCondition::UndefinedCondition);
let error = StanzaError::try_from(&elem).unwrap();
assert_eq!(error.type_, ErrorType::Cancel);
assert_eq!(error.defined_condition, DefinedCondition::UndefinedCondition);
}
#[test]
fn test_invalid_type() {
let elem: Element = "<error xmlns='jabber:client'/>".parse().unwrap();
let error = stanza_error::parse_stanza_error(&elem).unwrap_err();
let error = StanzaError::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -254,7 +259,7 @@ mod tests {
assert_eq!(message, "Error must have a 'type' attribute.");
let elem: Element = "<error xmlns='jabber:client' type='coucou'/>".parse().unwrap();
let error = stanza_error::parse_stanza_error(&elem).unwrap_err();
let error = StanzaError::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),
@ -265,7 +270,7 @@ mod tests {
#[test]
fn test_invalid_condition() {
let elem: Element = "<error xmlns='jabber:client' type='cancel'/>".parse().unwrap();
let error = stanza_error::parse_stanza_error(&elem).unwrap_err();
let error = StanzaError::try_from(&elem).unwrap_err();
let message = match error {
Error::ParseError(string) => string,
_ => panic!(),