457 lines
16 KiB
Rust
457 lines
16 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 crate::data_forms::{DataForm, DataFormType};
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use crate::util::error::Error;
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use crate::iq::{IqGetPayload, IqResultPayload};
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use crate::ns;
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use jid::Jid;
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use minidom::Element;
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use std::convert::TryFrom;
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generate_element!(
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/// Structure representing a `<query xmlns='http://jabber.org/protocol/disco#info'/>` element.
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///
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/// It should only be used in an `<iq type='get'/>`, as it can only represent
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/// the request, and not a result.
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DiscoInfoQuery, "query", DISCO_INFO,
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attributes: [
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/// Node on which we are doing the discovery.
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node: Option<String> = "node",
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]);
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impl IqGetPayload for DiscoInfoQuery {}
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generate_element!(
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/// Structure representing a `<feature xmlns='http://jabber.org/protocol/disco#info'/>` element.
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#[derive(PartialEq)]
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Feature, "feature", DISCO_INFO,
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attributes: [
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/// Namespace of the feature we want to represent.
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var: Required<String> = "var",
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]);
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impl Feature {
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/// Create a new `<feature/>` with the according `@var`.
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pub fn new<S: Into<String>>(var: S) -> Feature {
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Feature {
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var: var.into(),
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}
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}
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}
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generate_element!(
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/// Structure representing an `<identity xmlns='http://jabber.org/protocol/disco#info'/>` element.
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Identity, "identity", DISCO_INFO,
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attributes: [
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/// Category of this identity.
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// TODO: use an enum here.
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category: RequiredNonEmpty<String> = "category",
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/// Type of this identity.
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// TODO: use an enum here.
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type_: RequiredNonEmpty<String> = "type",
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/// Lang of the name of this identity.
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lang: Option<String> = "xml:lang",
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/// Name of this identity.
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name: Option<String> = "name",
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]
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);
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impl Identity {
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/// Create a new `<identity/>`.
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pub fn new<C, T, L, N>(category: C, type_: T, lang: L, name: N) -> Identity
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where C: Into<String>,
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T: Into<String>,
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L: Into<String>,
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N: Into<String>,
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{
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Identity {
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category: category.into(),
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type_: type_.into(),
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lang: Some(lang.into()),
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name: Some(name.into()),
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}
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}
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/// Create a new `<identity/>` without a name.
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pub fn new_anonymous<C, T, L, N>(category: C, type_: T) -> Identity
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where C: Into<String>,
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T: Into<String>,
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{
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Identity {
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category: category.into(),
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type_: type_.into(),
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lang: None,
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name: None,
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}
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}
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}
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/// Structure representing a `<query xmlns='http://jabber.org/protocol/disco#info'/>` element.
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///
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/// It should only be used in an `<iq type='result'/>`, as it can only
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/// represent the result, and not a request.
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#[derive(Debug, Clone)]
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pub struct DiscoInfoResult {
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/// Node on which we have done this discovery.
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pub node: Option<String>,
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/// List of identities exposed by this entity.
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pub identities: Vec<Identity>,
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/// List of features supported by this entity.
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pub features: Vec<Feature>,
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/// List of extensions reported by this entity.
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pub extensions: Vec<DataForm>,
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}
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impl IqResultPayload for DiscoInfoResult {}
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impl TryFrom<Element> for DiscoInfoResult {
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type Error = Error;
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fn try_from(elem: Element) -> Result<DiscoInfoResult, Error> {
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check_self!(elem, "query", DISCO_INFO, "disco#info result");
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check_no_unknown_attributes!(elem, "disco#info result", ["node"]);
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let mut result = DiscoInfoResult {
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node: get_attr!(elem, "node", Option),
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identities: vec![],
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features: vec![],
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extensions: vec![],
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};
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for child in elem.children() {
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if child.is("identity", ns::DISCO_INFO) {
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let identity = Identity::try_from(child.clone())?;
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result.identities.push(identity);
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} else if child.is("feature", ns::DISCO_INFO) {
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let feature = Feature::try_from(child.clone())?;
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result.features.push(feature);
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} else if child.is("x", ns::DATA_FORMS) {
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let data_form = DataForm::try_from(child.clone())?;
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if data_form.type_ != DataFormType::Result_ {
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return Err(Error::ParseError(
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"Data form must have a 'result' type in disco#info.",
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));
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}
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if data_form.form_type.is_none() {
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return Err(Error::ParseError("Data form found without a FORM_TYPE."));
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}
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result.extensions.push(data_form);
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} else {
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return Err(Error::ParseError("Unknown element in disco#info."));
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}
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}
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if result.identities.is_empty() {
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return Err(Error::ParseError(
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"There must be at least one identity in disco#info.",
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));
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}
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if result.features.is_empty() {
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return Err(Error::ParseError(
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"There must be at least one feature in disco#info.",
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));
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}
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if !result.features.contains(&Feature {
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var: ns::DISCO_INFO.to_owned(),
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}) {
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return Err(Error::ParseError(
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"disco#info feature not present in disco#info.",
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));
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}
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Ok(result)
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}
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}
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impl From<DiscoInfoResult> for Element {
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fn from(disco: DiscoInfoResult) -> Element {
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Element::builder("query")
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.ns(ns::DISCO_INFO)
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.attr("node", disco.node)
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.append(disco.identities)
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.append(disco.features)
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.append(disco.extensions)
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.build()
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}
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}
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generate_element!(
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/// Structure representing a `<query xmlns='http://jabber.org/protocol/disco#items'/>` element.
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///
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/// It should only be used in an `<iq type='get'/>`, as it can only represent
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/// the request, and not a result.
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DiscoItemsQuery, "query", DISCO_ITEMS,
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attributes: [
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/// Node on which we are doing the discovery.
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node: Option<String> = "node",
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]);
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impl IqGetPayload for DiscoItemsQuery {}
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generate_element!(
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/// Structure representing an `<item xmlns='http://jabber.org/protocol/disco#items'/>` element.
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Item, "item", DISCO_ITEMS,
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attributes: [
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/// JID of the entity pointed by this item.
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jid: Required<Jid> = "jid",
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/// Node of the entity pointed by this item.
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node: Option<String> = "node",
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/// Name of the entity pointed by this item.
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name: Option<String> = "name",
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]);
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generate_element!(
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/// Structure representing a `<query
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/// xmlns='http://jabber.org/protocol/disco#items'/>` element.
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///
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/// It should only be used in an `<iq type='result'/>`, as it can only
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/// represent the result, and not a request.
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DiscoItemsResult, "query", DISCO_ITEMS,
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attributes: [
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/// Node on which we have done this discovery.
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node: Option<String> = "node"
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],
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children: [
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/// List of items pointed by this entity.
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items: Vec<Item> = ("item", DISCO_ITEMS) => Item
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]
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);
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impl IqResultPayload for DiscoItemsResult {}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::util::compare_elements::NamespaceAwareCompare;
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use std::str::FromStr;
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#[cfg(target_pointer_width = "32")]
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#[test]
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fn test_size() {
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assert_size!(Identity, 48);
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assert_size!(Feature, 12);
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assert_size!(DiscoInfoQuery, 12);
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assert_size!(DiscoInfoResult, 48);
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assert_size!(Item, 64);
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assert_size!(DiscoItemsQuery, 12);
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assert_size!(DiscoItemsResult, 24);
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}
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#[cfg(target_pointer_width = "64")]
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#[test]
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fn test_size() {
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assert_size!(Identity, 96);
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assert_size!(Feature, 24);
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assert_size!(DiscoInfoQuery, 24);
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assert_size!(DiscoInfoResult, 96);
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assert_size!(Item, 128);
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assert_size!(DiscoItemsQuery, 24);
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assert_size!(DiscoItemsResult, 48);
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}
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#[test]
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fn test_simple() {
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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();
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let query = DiscoInfoResult::try_from(elem).unwrap();
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assert!(query.node.is_none());
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assert_eq!(query.identities.len(), 1);
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assert_eq!(query.features.len(), 1);
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assert!(query.extensions.is_empty());
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}
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#[test]
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fn test_identity_after_feature() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><feature var='http://jabber.org/protocol/disco#info'/><identity category='client' type='pc'/></query>".parse().unwrap();
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let query = DiscoInfoResult::try_from(elem).unwrap();
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assert_eq!(query.identities.len(), 1);
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assert_eq!(query.features.len(), 1);
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assert!(query.extensions.is_empty());
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}
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#[test]
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fn test_feature_after_dataform() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/><x xmlns='jabber:x:data' type='result'><field var='FORM_TYPE' type='hidden'><value>coucou</value></field></x><feature var='http://jabber.org/protocol/disco#info'/></query>".parse().unwrap();
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let query = DiscoInfoResult::try_from(elem).unwrap();
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assert_eq!(query.identities.len(), 1);
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assert_eq!(query.features.len(), 1);
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assert_eq!(query.extensions.len(), 1);
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}
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#[test]
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fn test_extension() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/><feature var='http://jabber.org/protocol/disco#info'/><x xmlns='jabber:x:data' type='result'><field var='FORM_TYPE' type='hidden'><value>example</value></field></x></query>".parse().unwrap();
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let elem1 = elem.clone();
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let query = DiscoInfoResult::try_from(elem).unwrap();
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assert!(query.node.is_none());
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assert_eq!(query.identities.len(), 1);
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assert_eq!(query.features.len(), 1);
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assert_eq!(query.extensions.len(), 1);
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assert_eq!(query.extensions[0].form_type, Some(String::from("example")));
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let elem2 = query.into();
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assert!(elem1.compare_to(&elem2));
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}
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#[test]
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fn test_invalid() {
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let elem: Element =
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"<query xmlns='http://jabber.org/protocol/disco#info'><coucou/></query>"
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.parse()
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.unwrap();
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let error = DiscoInfoResult::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 element in disco#info.");
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}
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#[test]
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fn test_invalid_identity() {
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let elem: Element =
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"<query xmlns='http://jabber.org/protocol/disco#info'><identity/></query>"
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.parse()
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.unwrap();
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let error = DiscoInfoResult::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 'category' missing.");
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let elem: Element =
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"<query xmlns='http://jabber.org/protocol/disco#info'><identity category=''/></query>"
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.parse()
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.unwrap();
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let error = DiscoInfoResult::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!(
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message,
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"Required attribute 'category' must not be empty."
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);
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='coucou'/></query>".parse().unwrap();
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let error = DiscoInfoResult::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 'type' missing.");
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='coucou' type=''/></query>".parse().unwrap();
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let error = DiscoInfoResult::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 'type' must not be empty.");
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}
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#[test]
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fn test_invalid_feature() {
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let elem: Element =
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"<query xmlns='http://jabber.org/protocol/disco#info'><feature/></query>"
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.parse()
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.unwrap();
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let error = DiscoInfoResult::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 'var' missing.");
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}
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#[test]
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fn test_invalid_result() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'/>"
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.parse()
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.unwrap();
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let error = DiscoInfoResult::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!(
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message,
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"There must be at least one identity in disco#info."
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);
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#info'><identity category='client' type='pc'/></query>".parse().unwrap();
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let error = DiscoInfoResult::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, "There must be at least one feature in disco#info.");
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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();
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let error = DiscoInfoResult::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, "disco#info feature not present in disco#info.");
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}
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#[test]
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fn test_simple_items() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#items'/>"
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.parse()
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.unwrap();
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let query = DiscoItemsQuery::try_from(elem).unwrap();
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assert!(query.node.is_none());
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#items' node='coucou'/>"
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.parse()
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.unwrap();
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let query = DiscoItemsQuery::try_from(elem).unwrap();
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assert_eq!(query.node, Some(String::from("coucou")));
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}
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#[test]
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fn test_simple_items_result() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#items'/>"
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.parse()
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.unwrap();
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let query = DiscoItemsResult::try_from(elem).unwrap();
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assert!(query.node.is_none());
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assert!(query.items.is_empty());
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#items' node='coucou'/>"
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.parse()
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.unwrap();
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let query = DiscoItemsResult::try_from(elem).unwrap();
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assert_eq!(query.node, Some(String::from("coucou")));
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assert!(query.items.is_empty());
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}
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#[test]
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fn test_answers_items_result() {
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let elem: Element = "<query xmlns='http://jabber.org/protocol/disco#items'><item jid='component'/><item jid='component2' node='test' name='A component'/></query>".parse().unwrap();
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let query = DiscoItemsResult::try_from(elem).unwrap();
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let elem2 = Element::from(query);
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let query = DiscoItemsResult::try_from(elem2).unwrap();
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assert_eq!(query.items.len(), 2);
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assert_eq!(query.items[0].jid, Jid::from_str("component").unwrap());
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assert_eq!(query.items[0].node, None);
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assert_eq!(query.items[0].name, None);
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assert_eq!(query.items[1].jid, Jid::from_str("component2").unwrap());
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assert_eq!(query.items[1].node, Some(String::from("test")));
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assert_eq!(query.items[1].name, Some(String::from("A component")));
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}
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}
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