2f7d5edb8a
This allows constructs like:
```rust
let residual = match Iq::try_from(stanza) {
Ok(iq) => return handle_iq(..),
Err(Error::TypeMismatch(_, _, v)) => v,
Err(other) => return handle_parse_error(..),
};
let residual = match Message::try_from(stanza) {
..
};
let residual = ..
log::warn!("unhandled object: {:?}", residual);
```
The interesting part of this is that this could be used in a loop over a
Vec<Box<dyn FnMut(Element) -> ControlFlow<SomeResult, Element>>, i.e. in
a parsing loop for a generic XML/XMPP stream.
The advantage is that the stanza.is() check runs only once (in
check_self!) and doesn't need to be duplicated outside, and it reduces
the use of magic strings.
95 lines
3.1 KiB
Rust
95 lines
3.1 KiB
Rust
// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public
|
|
// 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 crate::message::MessagePayload;
|
|
|
|
generate_element!(
|
|
/// Structure representing an `<encryption xmlns='urn:xmpp:eme:0'/>` element.
|
|
ExplicitMessageEncryption, "encryption", EME,
|
|
attributes: [
|
|
/// Namespace of the encryption scheme used.
|
|
namespace: Required<String> = "namespace",
|
|
|
|
/// User-friendly name for the encryption scheme, should be `None` for OTR,
|
|
/// legacy OpenPGP and OX.
|
|
name: Option<String> = "name",
|
|
]
|
|
);
|
|
|
|
impl MessagePayload for ExplicitMessageEncryption {}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::util::error::Error;
|
|
use crate::Element;
|
|
|
|
#[cfg(target_pointer_width = "32")]
|
|
#[test]
|
|
fn test_size() {
|
|
assert_size!(ExplicitMessageEncryption, 24);
|
|
}
|
|
|
|
#[cfg(target_pointer_width = "64")]
|
|
#[test]
|
|
fn test_size() {
|
|
assert_size!(ExplicitMessageEncryption, 48);
|
|
}
|
|
|
|
#[test]
|
|
fn test_simple() {
|
|
let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='urn:xmpp:otr:0'/>"
|
|
.parse()
|
|
.unwrap();
|
|
let encryption = ExplicitMessageEncryption::try_from(elem).unwrap();
|
|
assert_eq!(encryption.namespace, "urn:xmpp:otr:0");
|
|
assert_eq!(encryption.name, None);
|
|
|
|
let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='some.unknown.mechanism' name='SuperMechanism'/>".parse().unwrap();
|
|
let encryption = ExplicitMessageEncryption::try_from(elem).unwrap();
|
|
assert_eq!(encryption.namespace, "some.unknown.mechanism");
|
|
assert_eq!(encryption.name, Some(String::from("SuperMechanism")));
|
|
}
|
|
|
|
#[test]
|
|
fn test_unknown() {
|
|
let elem: Element = "<replace xmlns='urn:xmpp:message-correct:0'/>"
|
|
.parse()
|
|
.unwrap();
|
|
let error = ExplicitMessageEncryption::try_from(elem.clone()).unwrap_err();
|
|
let returned_elem = match error {
|
|
Error::TypeMismatch(_, _, elem) => elem,
|
|
_ => panic!(),
|
|
};
|
|
assert_eq!(elem, returned_elem);
|
|
}
|
|
|
|
#[test]
|
|
fn test_invalid_child() {
|
|
let elem: Element = "<encryption xmlns='urn:xmpp:eme:0'><coucou/></encryption>"
|
|
.parse()
|
|
.unwrap();
|
|
let error = ExplicitMessageEncryption::try_from(elem).unwrap_err();
|
|
let message = match error {
|
|
Error::ParseError(string) => string,
|
|
_ => panic!(),
|
|
};
|
|
assert_eq!(message, "Unknown child in encryption element.");
|
|
}
|
|
|
|
#[test]
|
|
fn test_serialise() {
|
|
let elem: Element = "<encryption xmlns='urn:xmpp:eme:0' namespace='coucou'/>"
|
|
.parse()
|
|
.unwrap();
|
|
let eme = ExplicitMessageEncryption {
|
|
namespace: String::from("coucou"),
|
|
name: None,
|
|
};
|
|
let elem2 = eme.into();
|
|
assert_eq!(elem, elem2);
|
|
}
|
|
}
|