converse.js/spec/http-file-upload.js

/*global mock, converse, _ */

const Strophe = converse.env.Strophe;
const $iq = converse.env.$iq;
const sizzle = converse.env.sizzle;
const u = converse.env.utils;

describe("XEP-0363: HTTP File Upload", function () {

    describe("Discovering support", function () {

        it("is done automatically", mock.initConverse(['chatBoxesFetched'], {}, async function (done, _converse) {
            const IQ_stanzas = _converse.connection.IQ_stanzas;
            await mock.waitUntilDiscoConfirmed(_converse, _converse.bare_jid, [], []);
            let selector = 'iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]';
            let stanza = await u.waitUntil(() => IQ_stanzas.find(iq => iq.querySelector(selector)), 1000);

            /* <iq type='result'
             *      from='plays.shakespeare.lit'
             *      to='romeo@montague.net/orchard'
             *      id='info1'>
             *  <query xmlns='http://jabber.org/protocol/disco#info'>
             *      <identity
             *          category='server'
             *          type='im'/>
             *      <feature var='http://jabber.org/protocol/disco#info'/>
             *      <feature var='http://jabber.org/protocol/disco#items'/>
             *  </query>
             *  </iq>
             */
            stanza = $iq({
                'type': 'result',
                'from': 'montague.lit',
                'to': 'romeo@montague.lit/orchard',
                'id': stanza.getAttribute('id'),
            }).c('query', {'xmlns': 'http://jabber.org/protocol/disco#info'})
                .c('identity', {
                    'category': 'server',
                    'type': 'im'}).up()
                .c('feature', {
                    'var': 'http://jabber.org/protocol/disco#info'}).up()
                .c('feature', {
                    'var': 'http://jabber.org/protocol/disco#items'});
            _converse.connection._dataRecv(mock.createRequest(stanza));

            let entities = await _converse.api.disco.entities.get();
            expect(entities.length).toBe(2);
            expect(entities.pluck('jid').includes('montague.lit')).toBe(true);
            expect(entities.pluck('jid').includes('romeo@montague.lit')).toBe(true);

            expect(entities.get(_converse.domain).features.length).toBe(2);
            expect(entities.get(_converse.domain).identities.length).toBe(1);

            // Converse.js sees that the entity has a disco#items feature,
            // so it will make a query for it.
            selector = 'iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#items"]';
            await u.waitUntil(() => IQ_stanzas.filter(iq => iq.querySelector(selector)).length, 1000);
            /* <iq from='montague.tld'
             *      id='step_01'
             *      to='romeo@montague.tld/garden'
             *      type='result'>
             *  <query xmlns='http://jabber.org/protocol/disco#items'>
             *      <item jid='upload.montague.tld' name='HTTP File Upload' />
             *      <item jid='conference.montague.tld' name='Chatroom Service' />
             *  </query>
             *  </iq>
             */
            selector = 'iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#items"]';
            stanza = IQ_stanzas.find(iq => iq.querySelector(selector), 500);
            stanza = $iq({
                'type': 'result',
                'from': 'montague.lit',
                'to': 'romeo@montague.lit/orchard',
                'id': stanza.getAttribute('id'),
            }).c('query', {'xmlns': 'http://jabber.org/protocol/disco#items'})
                .c('item', {
                    'jid': 'upload.montague.lit',
                    'name': 'HTTP File Upload'});

            _converse.connection._dataRecv(mock.createRequest(stanza));

            _converse.api.disco.entities.get().then(entities => {
                expect(entities.length).toBe(2);
                expect(entities.get('montague.lit').items.length).toBe(1);
                // Converse.js sees that the entity has a disco#info feature, so it will make a query for it.
                const selector = 'iq[to="upload.montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]';
                return u.waitUntil(() => IQ_stanzas.filter(iq => iq.querySelector(selector)).length > 0);
            });

            selector = 'iq[to="upload.montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]';
            stanza = await u.waitUntil(() => IQ_stanzas.filter(iq => iq.querySelector(selector)).pop(), 1000);
            expect(Strophe.serialize(stanza)).toBe(
                `<iq from="romeo@montague.lit/orchard" id="`+stanza.getAttribute('id')+`" to="upload.montague.lit" type="get" xmlns="jabber:client">`+
                    `<query xmlns="http://jabber.org/protocol/disco#info"/>`+
                `</iq>`);

            // Upload service responds and reports a maximum file size of 5MiB
            /* <iq from='upload.montague.tld'
             *     id='step_02'
             *     to='romeo@montague.tld/garden'
             *     type='result'>
             * <query xmlns='http://jabber.org/protocol/disco#info'>
             *     <identity category='store'
             *             type='file'
             *             name='HTTP File Upload' />
             *     <feature var='urn:xmpp:http:upload:0' />
             *     <x type='result' xmlns='jabber:x:data'>
             *     <field var='FORM_TYPE' type='hidden'>
             *         <value>urn:xmpp:http:upload:0</value>
             *     </field>
             *     <field var='max-file-size'>
             *         <value>5242880</value>
             *     </field>
             *     </x>
             * </query>
             * </iq>
             */
            stanza = $iq({'type': 'result', 'to': 'romeo@montague.lit/orchard', 'id': stanza.getAttribute('id'), 'from': 'upload.montague.lit'})
                .c('query', {'xmlns': 'http://jabber.org/protocol/disco#info'})
                    .c('identity', {'category':'store', 'type':'file', 'name':'HTTP File Upload'}).up()
                    .c('feature', {'var':'urn:xmpp:http:upload:0'}).up()
                    .c('x', {'type':'result', 'xmlns':'jabber:x:data'})
                        .c('field', {'var':'FORM_TYPE', 'type':'hidden'})
                            .c('value').t('urn:xmpp:http:upload:0').up().up()
                        .c('field', {'var':'max-file-size'})
                            .c('value').t('5242880');
            _converse.connection._dataRecv(mock.createRequest(stanza));

            entities = await _converse.api.disco.entities.get();
            expect(entities.get('montague.lit').items.get('upload.montague.lit').identities.where({'category': 'store'}).length).toBe(1);
            const supported = await _converse.api.disco.supports(Strophe.NS.HTTPUPLOAD, _converse.domain);
            expect(supported).toBe(true);
            const features = await _converse.api.disco.features.get(Strophe.NS.HTTPUPLOAD, _converse.domain);
            expect(features.length).toBe(1);
            expect(features[0].get('jid')).toBe('upload.montague.lit');
            expect(features[0].dataforms.where({'FORM_TYPE': {value: "urn:xmpp:http:upload:0", type: "hidden"}}).length).toBe(1);
            done();
        }));
    });

    describe("When not supported", function () {
        describe("A file upload toolbar button", function () {

            it("does not appear in private chats",
                    mock.initConverse([], {}, async function (done, _converse) {

                await mock.waitForRoster(_converse, 'current', 3);
                mock.openControlBox(_converse);
                const contact_jid = mock.cur_names[0].replace(/ /g,'.').toLowerCase() + '@montague.lit';
                await mock.openChatBoxFor(_converse, contact_jid);
                await mock.waitUntilDiscoConfirmed(
                    _converse, _converse.domain,
                    [{'category': 'server', 'type':'IM'}],
                    ['http://jabber.org/protocol/disco#items'], [], 'info');

                await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], [], 'items');
                const view = _converse.chatboxviews.get(contact_jid);
                expect(view.querySelector('.chat-toolbar .fileupload')).toBe(null);
                done();
            }));

            it("does not appear in MUC chats", mock.initConverse([], {}, async (done, _converse) => {
                await mock.openAndEnterChatRoom(_converse, 'lounge@montague.lit', 'romeo');
                mock.waitUntilDiscoConfirmed(
                    _converse, _converse.domain,
                    [{'category': 'server', 'type':'IM'}],
                    ['http://jabber.org/protocol/disco#items'], [], 'info');

                await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], [], 'items');
                const view = _converse.chatboxviews.get('lounge@montague.lit');
                await u.waitUntil(() => view.querySelector('.chat-toolbar .fileupload') === null);
                expect(1).toBe(1);
                done();
            }));

        });
    });

    describe("When supported", function () {

        describe("A file upload toolbar button", function () {

            it("appears in private chats", mock.initConverse(async (done, _converse) => {
                await mock.waitUntilDiscoConfirmed(
                    _converse, _converse.domain,
                    [{'category': 'server', 'type':'IM'}],
                    ['http://jabber.org/protocol/disco#items'], [], 'info');

                await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], ['upload.montague.lit'], 'items')
                await mock.waitUntilDiscoConfirmed(_converse, 'upload.montague.lit', [], [Strophe.NS.HTTPUPLOAD], []);
                await mock.waitForRoster(_converse, 'current', 3);
                const contact_jid = mock.cur_names[2].replace(/ /g,'.').toLowerCase() + '@montague.lit';
                await mock.openChatBoxFor(_converse, contact_jid);
                const view = _converse.chatboxviews.get(contact_jid);
                const el = await u.waitUntil(() => view.querySelector('.chat-toolbar .fileupload'));
                expect(el).not.toEqual(null);
                done();
            }));

            it("appears in MUC chats", mock.initConverse(['chatBoxesFetched'], {}, async (done, _converse) => {
                await mock.waitUntilDiscoConfirmed(
                    _converse, _converse.domain,
                    [{'category': 'server', 'type':'IM'}],
                    ['http://jabber.org/protocol/disco#items'], [], 'info');

                await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], ['upload.montague.lit'], 'items');
                await mock.waitUntilDiscoConfirmed(_converse, 'upload.montague.lit', [], [Strophe.NS.HTTPUPLOAD], []);
                await mock.openAndEnterChatRoom(_converse, 'lounge@montague.lit', 'romeo');
                await u.waitUntil(() => _converse.chatboxviews.get('lounge@montague.lit').querySelector('.fileupload'));
                const view = _converse.chatboxviews.get('lounge@montague.lit');
                expect(view.querySelector('.chat-toolbar .fileupload')).not.toBe(null);
                done();
            }));

            describe("when clicked and a file chosen", function () {

                it("is uploaded and sent out", mock.initConverse(['chatBoxesFetched'], {} ,async (done, _converse) => {
                    const base_url = 'https://conversejs.org';
                    await mock.waitUntilDiscoConfirmed(
                        _converse, _converse.domain,
                        [{'category': 'server', 'type':'IM'}],
                        ['http://jabber.org/protocol/disco#items'], [], 'info');

                    const send_backup = XMLHttpRequest.prototype.send;
                    const IQ_stanzas = _converse.connection.IQ_stanzas;

                    await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], ['upload.montague.tld'], 'items');
                    await mock.waitUntilDiscoConfirmed(_converse, 'upload.montague.tld', [], [Strophe.NS.HTTPUPLOAD], []);
                    await mock.waitForRoster(_converse, 'current');
                    const contact_jid = mock.cur_names[2].replace(/ /g,'.').toLowerCase() + '@montague.lit';
                    await mock.openChatBoxFor(_converse, contact_jid);
                    const view = _converse.chatboxviews.get(contact_jid);
                    const file = {
                        'type': 'image/jpeg',
                        'size': '23456' ,
                        'lastModifiedDate': "",
                        'name': "my-juliet.jpg"
                    };
                    view.model.sendFiles([file]);
                    await new Promise(resolve => view.model.messages.once('rendered', resolve));

                    await u.waitUntil(() => _.filter(IQ_stanzas, iq => iq.querySelector('iq[to="upload.montague.tld"] request')).length);
                    const iq = IQ_stanzas.pop();
                    expect(Strophe.serialize(iq)).toBe(
                        `<iq from="romeo@montague.lit/orchard" `+
                            `id="${iq.getAttribute("id")}" `+
                            `to="upload.montague.tld" `+
                            `type="get" `+
                            `xmlns="jabber:client">`+
                        `<request `+
                            `content-type="image/jpeg" `+
                            `filename="my-juliet.jpg" `+
                            `size="23456" `+
                            `xmlns="urn:xmpp:http:upload:0"/>`+
                        `</iq>`);

                    const message = base_url+"/logo/conversejs-filled.svg";

                    const stanza = u.toStanza(`
                        <iq from="upload.montague.tld"
                            id="${iq.getAttribute("id")}"
                            to="romeo@montague.lit/orchard"
                            type="result">
                        <slot xmlns="urn:xmpp:http:upload:0">
                            <put url="https://upload.montague.tld/4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67/my-juliet.jpg">
                            <header name="Authorization">Basic Base64String==</header>
                            <header name="Cookie">foo=bar; user=romeo</header>
                            </put>
                            <get url="${message}" />
                        </slot>
                        </iq>`);

                    spyOn(XMLHttpRequest.prototype, 'send').and.callFake(function () {
                        const message = view.model.messages.at(0);
                        expect(view.querySelector('.chat-content progress').getAttribute('value')).toBe('0');
                        message.set('progress', 0.5);
                        u.waitUntil(() => view.querySelector('.chat-content progress').getAttribute('value') === '0.5')
                        .then(() => {
                            message.set('progress', 1);
                            u.waitUntil(() => view.querySelector('.chat-content progress').getAttribute('value') === '1')
                        }).then(() => {
                            message.save({
                                'upload': _converse.SUCCESS,
                                'oob_url': message.get('get'),
                                'message': message.get('get')
                            });
                            return new Promise(resolve => view.model.messages.once('rendered', resolve));
                        });
                    });
                    let sent_stanza;
                    spyOn(_converse.connection, 'send').and.callFake(stanza => (sent_stanza = stanza));
                    _converse.connection._dataRecv(mock.createRequest(stanza));

                    await u.waitUntil(() => sent_stanza, 1000);
                    expect(sent_stanza.toLocaleString()).toBe(
                        `<message from="romeo@montague.lit/orchard" `+
                            `id="${sent_stanza.nodeTree.getAttribute("id")}" `+
                            `to="lady.montague@montague.lit" `+
                            `type="chat" `+
                            `xmlns="jabber:client">`+
                                `<body>${message}</body>`+
                                `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                                `<request xmlns="urn:xmpp:receipts"/>`+
                                `<x xmlns="jabber:x:oob">`+
                                    `<url>${message}</url>`+
                                `</x>`+
                                `<origin-id id="${sent_stanza.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
                        `</message>`);
                    const img_link_el = await u.waitUntil(() => view.querySelector('converse-chat-message-body .chat-image__link'), 1000);
                    // Check that the image renders
                    expect(img_link_el.outerHTML.replace(/<!---->/g, '').trim()).toEqual(
                        `<a class="chat-image__link" target="_blank" rel="noopener" href="${base_url}/logo/conversejs-filled.svg">`+
                        `<img class="chat-image img-thumbnail" src="${base_url}/logo/conversejs-filled.svg"></a>`);

                    expect(view.querySelector('.chat-msg .chat-msg__media').innerHTML.replace(/<!---->/g, '').trim()).toEqual(
                        `<a target="_blank" rel="noopener" href="${base_url}/logo/conversejs-filled.svg">`+
                        `Download image file "conversejs-filled.svg"</a>`);
                    XMLHttpRequest.prototype.send = send_backup;
                    done();
                }));

                it("is uploaded and sent out from a groupchat", mock.initConverse(async (done, _converse) => {

                    const base_url = 'https://conversejs.org';
                    await mock.waitUntilDiscoConfirmed(
                        _converse, _converse.domain,
                        [{'category': 'server', 'type':'IM'}],
                        ['http://jabber.org/protocol/disco#items'], [], 'info');

                    const send_backup = XMLHttpRequest.prototype.send;
                    const IQ_stanzas = _converse.connection.IQ_stanzas;

                    await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], ['upload.montague.tld'], 'items');
                    await mock.waitUntilDiscoConfirmed(_converse, 'upload.montague.tld', [], [Strophe.NS.HTTPUPLOAD], []);
                    await mock.openAndEnterChatRoom(_converse, 'lounge@montague.lit', 'romeo');

                    // Wait until MAM query has been sent out
                    const sent_stanzas = _converse.connection.sent_stanzas;
                    await u.waitUntil(() => sent_stanzas.filter(s => sizzle(`[xmlns="${Strophe.NS.MAM}"]`, s).length).pop());

                    const view = _converse.chatboxviews.get('lounge@montague.lit');
                    const file = {
                        'type': 'image/jpeg',
                        'size': '23456' ,
                        'lastModifiedDate': "",
                        'name': "my-juliet.jpg"
                    };
                    view.model.sendFiles([file]);
                    await new Promise(resolve => view.model.messages.once('rendered', resolve));

                    await u.waitUntil(() => _.filter(IQ_stanzas, iq => iq.querySelector('iq[to="upload.montague.tld"] request')).length);
                    const iq = IQ_stanzas.pop();
                    expect(Strophe.serialize(iq)).toBe(
                        `<iq from="romeo@montague.lit/orchard" `+
                            `id="${iq.getAttribute("id")}" `+
                            `to="upload.montague.tld" `+
                            `type="get" `+
                            `xmlns="jabber:client">`+
                        `<request `+
                            `content-type="image/jpeg" `+
                            `filename="my-juliet.jpg" `+
                            `size="23456" `+
                            `xmlns="urn:xmpp:http:upload:0"/>`+
                        `</iq>`);

                    const message = base_url+"/logo/conversejs-filled.svg";
                    const stanza = u.toStanza(`
                        <iq from='upload.montague.tld'
                            id="${iq.getAttribute('id')}"
                            to='romeo@montague.lit/orchard'
                            type='result'>
                        <slot xmlns='urn:xmpp:http:upload:0'>
                            <put url='https://upload.montague.tld/4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67/my-juliet.jpg'>
                            <header name='Authorization'>Basic Base64String==</header>
                            <header name='Cookie'>foo=bar; user=romeo</header>
                            </put>
                            <get url="${message}" />
                        </slot>
                        </iq>`);

                    spyOn(XMLHttpRequest.prototype, 'send').and.callFake(function () {
                        const message = view.model.messages.at(0);
                        expect(view.querySelector('.chat-content progress').getAttribute('value')).toBe('0');
                        message.set('progress', 0.5);
                        u.waitUntil(() => view.querySelector('.chat-content progress').getAttribute('value') === '0.5')
                        .then(() => {
                            message.set('progress', 1);
                            u.waitUntil(() => view.querySelector('.chat-content progress')?.getAttribute('value') === '1')
                        }).then(() => {
                            message.save({
                                'upload': _converse.SUCCESS,
                                'oob_url': message.get('get'),
                                'message': message.get('get')
                            });
                            return new Promise(resolve => view.model.messages.once('rendered', resolve));
                        });
                    });
                    let sent_stanza;
                    spyOn(_converse.connection, 'send').and.callFake(stanza => (sent_stanza = stanza));
                    _converse.connection._dataRecv(mock.createRequest(stanza));

                    await u.waitUntil(() => sent_stanza, 1000);
                    expect(sent_stanza.toLocaleString()).toBe(
                        `<message `+
                            `from="romeo@montague.lit/orchard" `+
                            `id="${sent_stanza.nodeTree.getAttribute("id")}" `+
                            `to="lounge@montague.lit" `+
                            `type="groupchat" `+
                            `xmlns="jabber:client">`+
                                `<body>${message}</body>`+
                                `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                                `<x xmlns="jabber:x:oob">`+
                                    `<url>${message}</url>`+
                                `</x>`+
                                `<origin-id id="${sent_stanza.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
                        `</message>`);
                    const img_link_el = await u.waitUntil(() => view.querySelector('converse-chat-message-body .chat-image__link'), 1000);
                    // Check that the image renders
                    expect(img_link_el.outerHTML.replace(/<!---->/g, '').trim()).toEqual(
                        `<a class="chat-image__link" target="_blank" rel="noopener" href="${base_url}/logo/conversejs-filled.svg">`+
                        `<img class="chat-image img-thumbnail" src="${base_url}/logo/conversejs-filled.svg"></a>`);

                    expect(view.querySelector('.chat-msg .chat-msg__media').innerHTML.replace(/<!---->/g, '').trim()).toEqual(
                        `<a target="_blank" rel="noopener" href="${base_url}/logo/conversejs-filled.svg">`+
                        `Download image file "conversejs-filled.svg"</a>`);

                    XMLHttpRequest.prototype.send = send_backup;
                    done();
                }));

                it("shows an error message if the file is too large",
                        mock.initConverse([], {}, async function (done, _converse) {

                    const IQ_stanzas = _converse.connection.IQ_stanzas;
                    const IQ_ids =  _converse.connection.IQ_ids;

                    await mock.waitUntilDiscoConfirmed(_converse, _converse.bare_jid, [], []);
                    await u.waitUntil(() => _.filter(
                        IQ_stanzas,
                        iq => iq.querySelector('iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]')).length
                    );

                    let stanza = _.find(IQ_stanzas, function (iq) {
                        return iq.querySelector(
                            'iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]');
                    });
                    const info_IQ_id = IQ_ids[IQ_stanzas.indexOf(stanza)];
                    stanza = $iq({
                        'type': 'result',
                        'from': 'montague.lit',
                        'to': 'romeo@montague.lit/orchard',
                        'id': info_IQ_id
                    }).c('query', {'xmlns': 'http://jabber.org/protocol/disco#info'})
                        .c('identity', {
                            'category': 'server',
                            'type': 'im'}).up()
                        .c('feature', {
                            'var': 'http://jabber.org/protocol/disco#info'}).up()
                        .c('feature', {
                            'var': 'http://jabber.org/protocol/disco#items'});
                    _converse.connection._dataRecv(mock.createRequest(stanza));
                    let entities = await _converse.api.disco.entities.get();

                    expect(entities.length).toBe(2);
                    expect(_.includes(entities.pluck('jid'), 'montague.lit')).toBe(true);
                    expect(_.includes(entities.pluck('jid'), 'romeo@montague.lit')).toBe(true);

                    expect(entities.get(_converse.domain).features.length).toBe(2);
                    expect(entities.get(_converse.domain).identities.length).toBe(1);

                    await u.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.querySelector('iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#items"]');
                        }).length > 0;
                    }, 300);

                    stanza = _.find(IQ_stanzas, function (iq) {
                        return iq.querySelector('iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#items"]');
                    });
                    var items_IQ_id = IQ_ids[IQ_stanzas.indexOf(stanza)];
                    stanza = $iq({
                        'type': 'result',
                        'from': 'montague.lit',
                        'to': 'romeo@montague.lit/orchard',
                        'id': items_IQ_id
                    }).c('query', {'xmlns': 'http://jabber.org/protocol/disco#items'})
                        .c('item', {
                            'jid': 'upload.montague.lit',
                            'name': 'HTTP File Upload'});

                    _converse.connection._dataRecv(mock.createRequest(stanza));

                    entities = await _converse.api.disco.entities.get()

                    expect(entities.length).toBe(2);
                    expect(entities.get('montague.lit').items.length).toBe(1);
                    await u.waitUntil(function () {
                        // Converse.js sees that the entity has a disco#info feature,
                        // so it will make a query for it.
                        return _.filter(IQ_stanzas, function (iq) {
                            return iq.querySelector('iq[to="upload.montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]');
                        }).length > 0;
                    }, 300);

                    stanza = _.find(IQ_stanzas, iq => iq.querySelector('iq[to="upload.montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]'));
                    const IQ_id = IQ_ids[IQ_stanzas.indexOf(stanza)];
                    expect(Strophe.serialize(stanza)).toBe(
                        `<iq from="romeo@montague.lit/orchard" id="${IQ_id}" to="upload.montague.lit" type="get" xmlns="jabber:client">`+
                            `<query xmlns="http://jabber.org/protocol/disco#info"/>`+
                        `</iq>`);

                    // Upload service responds and reports a maximum file size of 5MiB
                    stanza = $iq({'type': 'result', 'to': 'romeo@montague.lit/orchard', 'id': IQ_id, 'from': 'upload.montague.lit'})
                        .c('query', {'xmlns': 'http://jabber.org/protocol/disco#info'})
                            .c('identity', {'category':'store', 'type':'file', 'name':'HTTP File Upload'}).up()
                            .c('feature', {'var':'urn:xmpp:http:upload:0'}).up()
                            .c('x', {'type':'result', 'xmlns':'jabber:x:data'})
                                .c('field', {'var':'FORM_TYPE', 'type':'hidden'})
                                    .c('value').t('urn:xmpp:http:upload:0').up().up()
                                .c('field', {'var':'max-file-size'})
                                    .c('value').t('5242880');
                    _converse.connection._dataRecv(mock.createRequest(stanza));
                    entities = await _converse.api.disco.entities.get();
                    expect(entities.get('montague.lit').items.get('upload.montague.lit').identities.where({'category': 'store'}).length).toBe(1);
                    await _converse.api.disco.supports(Strophe.NS.HTTPUPLOAD, _converse.domain);
                    await mock.waitForRoster(_converse, 'current');

                    const contact_jid = mock.cur_names[2].replace(/ /g,'.').toLowerCase() + '@montague.lit';
                    await mock.openChatBoxFor(_converse, contact_jid);
                    const view = _converse.chatboxviews.get(contact_jid);
                    var file = {
                        'type': 'image/jpeg',
                        'size': '5242881',
                        'lastModifiedDate': "",
                        'name': "my-juliet.jpg"
                    };
                    view.model.sendFiles([file]);
                    await u.waitUntil(() => view.querySelectorAll('.message').length)
                    const messages = view.querySelectorAll('.message.chat-error');
                    expect(messages.length).toBe(1);
                    expect(messages[0].textContent.trim()).toBe(
                        'The size of your file, my-juliet.jpg, exceeds the maximum allowed by your server, which is 5 MB.');
                    done();
                }));
            });
        });

        describe("While a file is being uploaded", function () {

            it("shows a progress bar", mock.initConverse(['chatBoxesFetched'], {}, async function (done, _converse) {
                await mock.waitUntilDiscoConfirmed(
                    _converse, _converse.domain,
                    [{'category': 'server', 'type':'IM'}],
                    ['http://jabber.org/protocol/disco#items'], [], 'info');

                const IQ_stanzas = _converse.connection.IQ_stanzas;

                await mock.waitUntilDiscoConfirmed(_converse, _converse.domain, [], [], ['upload.montague.tld'], 'items');
                await mock.waitUntilDiscoConfirmed(_converse, 'upload.montague.tld', [], [Strophe.NS.HTTPUPLOAD], []);
                await mock.waitForRoster(_converse, 'current');
                const contact_jid = mock.cur_names[2].replace(/ /g,'.').toLowerCase() + '@montague.lit';
                await mock.openChatBoxFor(_converse, contact_jid);
                const view = _converse.chatboxviews.get(contact_jid);
                const file = {
                    'type': 'image/jpeg',
                    'size': '23456' ,
                    'lastModifiedDate': "",
                    'name': "my-juliet.jpg"
                };
                view.model.sendFiles([file]);
                await new Promise(resolve => view.model.messages.once('rendered', resolve));
                await u.waitUntil(() => _.filter(IQ_stanzas, iq => iq.querySelector('iq[to="upload.montague.tld"] request')).length)
                const iq = IQ_stanzas.pop();
                expect(Strophe.serialize(iq)).toBe(
                    `<iq from="romeo@montague.lit/orchard" `+
                        `id="${iq.getAttribute("id")}" `+
                        `to="upload.montague.tld" `+
                        `type="get" `+
                        `xmlns="jabber:client">`+
                    `<request `+
                        `content-type="image/jpeg" `+
                        `filename="my-juliet.jpg" `+
                        `size="23456" `+
                        `xmlns="urn:xmpp:http:upload:0"/>`+
                    `</iq>`);

                const base_url = 'https://conversejs.org';
                const message = base_url+"/logo/conversejs-filled.svg";
                const stanza = u.toStanza(`
                    <iq from="upload.montague.tld"
                        id="${iq.getAttribute("id")}"
                        to="romeo@montague.lit/orchard"
                        type="result">
                    <slot xmlns="urn:xmpp:http:upload:0">
                        <put url="https://upload.montague.tld/4a771ac1-f0b2-4a4a-9700-f2a26fa2bb67/my-juliet.jpg">
                            <header name="Authorization">Basic Base64String==</header>
                            <header name="Cookie">foo=bar; user=romeo</header>
                        </put>
                        <get url="${message}" />
                    </slot>
                    </iq>`);

                spyOn(XMLHttpRequest.prototype, 'send').and.callFake(async () => {
                    const message = view.model.messages.at(0);
                    expect(view.querySelector('.chat-content progress').getAttribute('value')).toBe('0');
                    message.set('progress', 0.5);
                    await u.waitUntil(() => view.querySelector('.chat-content progress').getAttribute('value') === '0.5');
                    message.set('progress', 1);
                    await u.waitUntil(() => view.querySelector('.chat-content progress').getAttribute('value') === '1');
                    expect(view.querySelector('.chat-content .chat-msg__text').textContent).toBe('Uploading file: my-juliet.jpg, 22.91 KB');
                    done();
                });
                _converse.connection._dataRecv(mock.createRequest(stanza));
            }));
        });
    });
});