Chapril/xmpp.chapril.org-conversejs
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disco: Refactor service discovery and add tests.

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* `disco#items` are now only fetched when advertised by the entity.
* `identity` information is now also stored on the `DiscoEntity` model.
This commit is contained in:
JC Brand 2017-07-21 17:38:08 +02:00
parent 084d9914b0
commit 439e37feaa
5 changed files with 267 additions and 106 deletions
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2
.eslintrc.json
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@ -18,7 +18,7 @@
"lodash/prefer-lodash-method": [2, {
"ignoreMethods": [
"find", "endsWith", "startsWith", "filter", "reduce",
"map", "replace", "toLower", "split", "trim", "forEach"
"map", "replace", "toLower", "split", "trim", "forEach", "toUpperCase"
]
}],
"lodash/prefer-startswith": "off",

154
spec/disco.js
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@ -8,8 +8,161 @@
} (this, function (jasmine, $, converse, mock, test_utils) {
"use strict";
var Strophe = converse.env.Strophe;
var $iq = converse.env.$iq;
var _ = converse.env._;
describe("Service Discovery", function () {
describe("Whenever converse.js queries a server for its features", function () {
it("stores the features it receives", mock.initConverseWithAsync(function (done, _converse) {
var IQ_stanzas = _converse.connection.IQ_stanzas;
var IQ_ids = _converse.connection.IQ_ids;
test_utils.waitUntil(function () {
return _.filter(IQ_stanzas, function (iq) {
return iq.nodeTree.querySelector('query[xmlns="http://jabber.org/protocol/disco#info"]');
}).length > 0;
}, 300).then(function () {
/* <iq type='result'
* from='plays.shakespeare.lit'
* to='romeo@montague.net/orchard'
* id='info1'>
* <query xmlns='http://jabber.org/protocol/disco#info'>
* <identity
* category='conference'
* type='text'
* name='Play-Specific Chatrooms'/>
* <identity
* category='directory'
* type='chatroom'
* name='Play-Specific Chatrooms'/>
* <feature var='http://jabber.org/protocol/disco#info'/>
* <feature var='http://jabber.org/protocol/disco#items'/>
* <feature var='http://jabber.org/protocol/muc'/>
* <feature var='jabber:iq:register'/>
* <feature var='jabber:iq:search'/>
* <feature var='jabber:iq:time'/>
* <feature var='jabber:iq:version'/>
* </query>
* </iq>
*/
var info_IQ_id = IQ_ids[0];
var stanza = $iq({
'type': 'result',
'from': 'localhost',
'to': 'dummy@localhost/resource',
'id': info_IQ_id
}).c('query', {'xmlns': 'http://jabber.org/protocol/disco#info'})
.c('identity', {
'category': 'conference',
'type': 'text',
'name': 'Play-Specific Chatrooms'}).up()
.c('identity', {
'category': 'directory',
'type': 'chatroom',
'name': 'Play-Specific Chatrooms'}).up()
.c('feature', {
'var': 'http://jabber.org/protocol/disco#info'}).up()
.c('feature', {
'var': 'http://jabber.org/protocol/disco#items'}).up()
.c('feature', {
'var': 'jabber:iq:register'}).up()
.c('feature', {
'var': 'jabber:iq:time'}).up()
.c('feature', {
'var': 'jabber:iq:version'});
_converse.connection._dataRecv(test_utils.createRequest(stanza));
var entities = _converse.disco_entities;
expect(entities.length).toBe(1);
expect(entities.get('localhost').features.length).toBe(5);
expect(entities.get('localhost').features.where({'var': 'jabber:iq:version'}).length).toBe(1);
expect(entities.get('localhost').features.where({'var': 'jabber:iq:time'}).length).toBe(1);
expect(entities.get('localhost').features.where({'var': 'jabber:iq:register'}).length).toBe(1);
expect(entities.get('localhost').features.where(
{'var': 'http://jabber.org/protocol/disco#items'}).length).toBe(1);
expect(entities.get('localhost').features.where(
{'var': 'http://jabber.org/protocol/disco#info'}).length).toBe(1);
test_utils.waitUntil(function () {
// Converse.js sees that the entity has a disco#items feature,
// so it will make a query for it.
return _.filter(IQ_stanzas, function (iq) {
return iq.nodeTree.querySelector('query[xmlns="http://jabber.org/protocol/disco#items"]');
}).length > 0;
}, 300).then(function () {
/* <iq type='result'
* from='catalog.shakespeare.lit'
* to='romeo@montague.net/orchard'
* id='items2'>
* <query xmlns='http://jabber.org/protocol/disco#items'>
* <item jid='people.shakespeare.lit'
* name='Directory of Characters'/>
* <item jid='plays.shakespeare.lit'
* name='Play-Specific Chatrooms'/>
* <item jid='mim.shakespeare.lit'
* name='Gateway to Marlowe IM'/>
* <item jid='words.shakespeare.lit'
* name='Shakespearean Lexicon'/>
*
* <item jid='catalog.shakespeare.lit'
* node='books'
* name='Books by and about Shakespeare'/>
* <item jid='catalog.shakespeare.lit'
* node='clothing'
* name='Wear your literary taste with pride'/>
* <item jid='catalog.shakespeare.lit'
* node='music'
* name='Music from the time of Shakespeare'/>
* </query>
* </iq>
*/
var items_IQ_id = IQ_ids.pop();
stanza = $iq({
'type': 'result',
'from': 'localhost',
'to': 'dummy@localhost/resource',
'id': items_IQ_id
}).c('query', {'xmlns': 'http://jabber.org/protocol/disco#items'})
.c('item', {
'jid': 'people.shakespeare.lit',
'name': 'Directory of Characters'}).up()
.c('item', {
'jid': 'plays.shakespeare.lit',
'name': 'Play-Specific Chatrooms'}).up()
.c('item', {
'jid': 'words.shakespeare.lit',
'name': 'Gateway to Marlowe IM'}).up()
.c('item', {
'jid': 'localhost',
'name': 'Shakespearean Lexicon'}).up()
.c('item', {
'jid': 'localhost',
'node': 'books',
'name': 'Books by and about Shakespeare'}).up()
.c('item', {
'node': 'localhost',
'name': 'Wear your literary taste with pride'}).up()
.c('item', {
'jid': 'localhost',
'node': 'music',
'name': 'Music from the time of Shakespeare'
});
_converse.connection._dataRecv(test_utils.createRequest(stanza));
entities = _converse.disco_entities;
expect(entities.length).toBe(4);
expect(entities.get(_converse.domain).features.length).toBe(5);
expect(entities.get(_converse.domain).identities.length).toBe(2);
expect(entities.get(_converse.domain).identities.where({'category': 'conference'}).length).toBe(1);
expect(entities.get(_converse.domain).identities.where({'category': 'directory'}).length).toBe(1);
done();
});
});
}));
});
describe("Whenever converse.js discovers a new server feature", function () {
it("emits the serviceDiscovered event",
mock.initConverseWithPromises(
@ -19,6 +172,7 @@
sinon.spy(_converse, 'emit');
_converse.disco_entities.get(_converse.domain).features.create({'var': Strophe.NS.MAM});
expect(_converse.emit.called).toBe(true);
expect(_converse.emit.args[0][0]).toBe('serviceDiscovered');
expect(_converse.emit.args[0][1].get('var')).toBe(Strophe.NS.MAM);
done();
}));

2
spec/mam.js
View File

@ -381,7 +381,7 @@
'var': Strophe.NS.MAM
});
spyOn(feature, 'save').and.callFake(feature.set); // Save will complain about a url not being set
_converse.disco_entities.get(_converse.domain).features.onFeatureAdded(feature);
_converse.disco_entities.get(_converse.domain).onFeatureAdded(feature);
expect(_converse.connection.sendIQ).toHaveBeenCalled();
expect(sent_stanza.toLocaleString()).toBe(

167
src/converse-disco.js
View File

@ -22,19 +22,90 @@
*/
const { _converse } = this;
function onDiscoItems (stanza) {
_.each(stanza.querySelectorAll('query item'), (item) => {
if (item.getAttribute("node")) {
// XXX: ignore nodes for now.
// See: https://xmpp.org/extensions/xep-0030.html#items-nodes
return;
}
const jid = item.getAttribute('jid');
const entities = _converse.disco_entities;
if (_.isUndefined(entities.get(jid))) {
entities.create({'jid': jid});
}
});
}
// Promises exposed by this plugin
_converse.api.promises.add('discoInitialized');
_converse.DiscoEntity = Backbone.Model.extend({
/* A Disco Entity is a JID addressable entity that can be queried
* for features.
*
* See XEP-0030: https://xmpp.org/extensions/xep-0030.html
*/
initialize (settings) {
if (_.isNil(settings.jid)) {
throw new Error('DiscoEntity must be instantiated with a JID');
idAttribute: 'jid',
initialize () {
this.features = new Backbone.Collection();
this.features.browserStorage = new Backbone.BrowserStorage[_converse.storage](
b64_sha1(`converse.features-${this.get('jid')}`)
);
this.features.on('add', this.onFeatureAdded);
this.identities = new Backbone.Collection();
this.identities.browserStorage = new Backbone.BrowserStorage[_converse.storage](
b64_sha1(`converse.identities-${this.get('jid')}`)
);
this.fetchFeatures();
},
onFeatureAdded (feature) {
_converse.emit('serviceDiscovered', feature);
},
fetchFeatures () {
if (this.features.browserStorage.records.length === 0) {
this.queryInfo();
} else {
this.features.fetch({add: true});
this.identities.fetch({add: true});
}
this.features = new _converse.Features({'jid': settings.jid});
},
queryInfo () {
_converse.connection.disco.info(this.get('jid'), null, this.onInfo.bind(this));
},
queryForItems () {
if (_.isEmpty(this.identities.where({'category': 'server'})) &&
_.isEmpty(this.identities.where({'category': 'conference'}))) {
// Don't fetch features and items if this is not a
// server or a conference component.
return;
}
_converse.connection.disco.items(this.get('jid'), null, onDiscoItems);
},
onInfo (stanza) {
_.forEach(stanza.querySelectorAll('identity'), (identity) => {
this.identities.create({
'category': identity.getAttribute('category'),
'type': stanza.getAttribute('type'),
'name': stanza.getAttribute('name')
});
});
if (stanza.querySelector('feature[var="'+Strophe.NS.DISCO_ITEMS+'"]')) {
this.queryForItems();
}
_.forEach(stanza.querySelectorAll('feature'), (feature) => {
this.features.create({
'var': feature.getAttribute('var'),
'from': stanza.getAttribute('from')
});
});
}
});
@ -56,14 +127,8 @@
this.fetch({
add: true,
success: function (collection) {
if (collection.length === 0) {
/* The sessionStorage is empty */
// TODO: check for domain in collection even if
// not empty
this.create({
'id': _converse.domain,
'jid': _converse.domain
});
if (collection.length === 0 || !collection.get(_converse.domain)) {
this.create({'jid': _converse.domain});
}
resolve();
}.bind(this),
@ -75,57 +140,16 @@
}
});
_converse.Features = Backbone.Collection.extend({
/* Service Discovery
* -----------------
* This collection stores Feature Models, representing features
* provided by available XMPP entities (e.g. servers)
* See XEP-0030 for more details: http://xmpp.org/extensions/xep-0030.html
* All features are shown here: http://xmpp.org/registrar/disco-features.html
*/
model: Backbone.Model,
initialize (settings) {
const jid = settings.jid;
if (_.isNil(jid)) {
throw new Error('DiscoEntity must be instantiated with a JID');
}
this.addClientIdentities().addClientFeatures();
this.browserStorage = new Backbone.BrowserStorage[_converse.storage](
b64_sha1(`converse.features-${jid}`)
);
this.on('add', this.onFeatureAdded, this);
this.fetchFeatures(jid);
},
fetchFeatures (jid) {
if (this.browserStorage.records.length === 0) {
// browserStorage is empty, so we've likely never queried this
// domain for features yet
_converse.connection.disco.info(jid, null, this.onInfo.bind(this));
_converse.connection.disco.items(jid, null, this.onItems.bind(this));
} else {
this.fetch({add:true});
}
},
onFeatureAdded (feature) {
_converse.emit('serviceDiscovered', feature);
},
addClientIdentities () {
/* See http://xmpp.org/registrar/disco-categories.html
*/
_converse.connection.disco.addIdentity('client', 'web', 'Converse.js');
return this;
},
addClientFeatures () {
function addClientFeatures () {
/* The strophe.disco.js plugin keeps a list of features which
* it will advertise to any #info queries made to it.
*
* See: http://xmpp.org/extensions/xep-0030.html#info
*/
// See http://xmpp.org/registrar/disco-categories.html
_converse.connection.disco.addIdentity('client', 'web', 'Converse.js');
_converse.connection.disco.addFeature(Strophe.NS.BOSH);
_converse.connection.disco.addFeature(Strophe.NS.CHATSTATES);
_converse.connection.disco.addFeature(Strophe.NS.DISCO_INFO);
@ -135,35 +159,10 @@
}
_converse.emit('addClientFeatures');
return this;
},
onItems (stanza) {
_.each(stanza.querySelectorAll('query item'), (item) => {
_converse.connection.disco.info(
item.getAttribute('jid'),
null,
this.onInfo.bind(this));
});
},
onInfo (stanza) {
if ((sizzle('identity[category=server][type=im]', stanza).length === 0) &&
(sizzle('identity[category=conference][type=text]', stanza).length === 0)) {
// This isn't an IM server component
return;
}
_.forEach(stanza.querySelectorAll('feature'), (feature) => {
const namespace = feature.getAttribute('var');
this[namespace] = true;
this.create({
'var': namespace,
'from': stanza.getAttribute('from')
});
});
}
});
function initializeDisco () {
addClientFeatures();
_converse.disco_entities = new _converse.DiscoEntities();
}
_converse.api.listen.on('reconnected', initializeDisco);

24
tests/mock.js
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@ -49,6 +49,17 @@
return function () {
Strophe.Bosh.prototype._processRequest = function () {}; // Don't attempt to send out stanzas
var c = new Strophe.Connection('jasmine tests');
var sendIQ = c.sendIQ;
c.IQ_stanzas = [];
c.IQ_ids = [];
c.sendIQ = function (iq, callback, errback) {
this.IQ_stanzas.push(iq);
var id = sendIQ.bind(this)(iq, callback, errback);
this.IQ_ids.push(id);
return id;
}
c.vcard = {
'get': function (callback, jid) {
var fullname;
@ -111,18 +122,15 @@
return function (done) {
var _converse = initConverse(settings, spies);
var promises = _.map(promise_names, _converse.api.waitUntil);
Promise.all(promises).then(_.partial(func, done, _converse));
Promise.all(promises)
.then(_.partial(func, done, _converse))
.catch(_.partial(_converse.log, _, Strophe.LogLevel.FATAL));
}
};
mock.initConverseWithConnectionSpies = function (spies, settings, func) {
if (_.isFunction(settings)) {
var _func = settings;
settings = func;
func = _func;
}
return function () {
return func(initConverse(settings, spies));
return function (done) {
return func(done, initConverse(settings, spies));
};
};