105 lines
3.5 KiB
JavaScript
105 lines
3.5 KiB
JavaScript
// Converse.js (A browser based XMPP chat client)
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// https://conversejs.org
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//
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// This is the utilities module.
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//
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// Copyright (c) 2013-2019, Jan-Carel Brand <jc@opkode.com>
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// Licensed under the Mozilla Public License (MPLv2)
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//
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/*global escape, Jed */
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import converse from "@converse/headless/converse-core";
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import u from "./core";
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const { Strophe, sizzle, _ } = converse.env;
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u.computeAffiliationsDelta = function computeAffiliationsDelta (exclude_existing, remove_absentees, new_list, old_list) {
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/* Given two lists of objects with 'jid', 'affiliation' and
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* 'reason' properties, return a new list containing
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* those objects that are new, changed or removed
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* (depending on the 'remove_absentees' boolean).
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*
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* The affiliations for new and changed members stay the
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* same, for removed members, the affiliation is set to 'none'.
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*
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* The 'reason' property is not taken into account when
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* comparing whether affiliations have been changed.
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*
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* Parameters:
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* (Boolean) exclude_existing: Indicates whether JIDs from
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* the new list which are also in the old list
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* (regardless of affiliation) should be excluded
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* from the delta. One reason to do this
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* would be when you want to add a JID only if it
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* doesn't have *any* existing affiliation at all.
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* (Boolean) remove_absentees: Indicates whether JIDs
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* from the old list which are not in the new list
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* should be considered removed and therefore be
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* included in the delta with affiliation set
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* to 'none'.
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* (Array) new_list: Array containing the new affiliations
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* (Array) old_list: Array containing the old affiliations
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*/
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const new_jids = _.map(new_list, 'jid');
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const old_jids = _.map(old_list, 'jid');
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// Get the new affiliations
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let delta = _.map(
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_.difference(new_jids, old_jids),
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(jid) => new_list[_.indexOf(new_jids, jid)]
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);
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if (!exclude_existing) {
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// Get the changed affiliations
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delta = delta.concat(_.filter(new_list, function (item) {
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const idx = _.indexOf(old_jids, item.jid);
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if (idx >= 0) {
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return item.affiliation !== old_list[idx].affiliation;
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}
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return false;
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}));
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}
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if (remove_absentees) {
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// Get the removed affiliations
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delta = delta.concat(
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_.map(
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_.difference(old_jids, new_jids),
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(jid) => ({'jid': jid, 'affiliation': 'none'})
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)
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);
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}
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return delta;
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};
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u.parseMemberListIQ = function parseMemberListIQ (iq) {
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/* Given an IQ stanza with a member list, create an array of member objects.
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*/
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return _.map(
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sizzle(`query[xmlns="${Strophe.NS.MUC_ADMIN}"] item`, iq),
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(item) => {
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const data = {
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'affiliation': item.getAttribute('affiliation'),
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}
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const jid = item.getAttribute('jid');
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if (u.isValidJID(jid)) {
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data['jid'] = jid;
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} else {
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// XXX: Prosody sends nick for the jid attribute value
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// Perhaps for anonymous room?
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data['nick'] = jid;
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}
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const nick = item.getAttribute('nick');
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if (nick) {
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data['nick'] = nick;
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}
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const role = item.getAttribute('role');
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if (role) {
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data['role'] = nick;
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}
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return data;
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}
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);
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};
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