@pazznetwork/ngx-chat
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100 lines • 18.2 kB
JavaScript
import { xml } from '@xmpp/client';
import { BehaviorSubject } from 'rxjs';
import { AbstractXmppPlugin } from './abstract-xmpp-plugin';
export const MUC_SUB_FEATURE_ID = 'urn:xmpp:mucsub:0';
export var MUC_SUB_EVENT_TYPE;
(function (MUC_SUB_EVENT_TYPE) {
MUC_SUB_EVENT_TYPE["presence"] = "urn:xmpp:mucsub:nodes:presence";
MUC_SUB_EVENT_TYPE["messages"] = "urn:xmpp:mucsub:nodes:messages";
MUC_SUB_EVENT_TYPE["affiliations"] = "urn:xmpp:mucsub:nodes:affiliations";
MUC_SUB_EVENT_TYPE["subscribers"] = "urn:xmpp:mucsub:nodes:subscribers";
MUC_SUB_EVENT_TYPE["config"] = "urn:xmpp:mucsub:nodes:config";
MUC_SUB_EVENT_TYPE["subject"] = "urn:xmpp:mucsub:nodes:subject";
MUC_SUB_EVENT_TYPE["system"] = "urn:xmpp:mucsub:nodes:system";
})(MUC_SUB_EVENT_TYPE || (MUC_SUB_EVENT_TYPE = {}));
/**
* support for https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/
*/
export class MucSubPlugin extends AbstractXmppPlugin {
constructor(xmppChatAdapter, serviceDiscoveryPlugin) {
super();
this.xmppChatAdapter = xmppChatAdapter;
this.serviceDiscoveryPlugin = serviceDiscoveryPlugin;
this.supportsMucSub$ = new BehaviorSubject('unknown');
}
onBeforeOnline() {
return this.determineSupportForMucSub();
}
async determineSupportForMucSub() {
let isSupported;
try {
const service = await this.serviceDiscoveryPlugin.findService('conference', 'text');
isSupported = service.features.includes(MUC_SUB_FEATURE_ID);
}
catch (e) {
isSupported = false;
}
this.supportsMucSub$.next(isSupported);
}
onOffline() {
this.supportsMucSub$.next('unknown');
}
async subscribeRoom(roomJid, nodes = []) {
const nick = this.xmppChatAdapter.chatConnectionService.userJid.local;
await this.xmppChatAdapter.chatConnectionService.sendIq(makeSubscribeRoomStanza(roomJid, nick, nodes));
}
async unsubscribeRoom(roomJid) {
await this.xmppChatAdapter.chatConnectionService.sendIq(makeUnsubscribeRoomStanza(roomJid));
}
/**
* A room moderator can unsubscribe others providing the their jid as attribute to the information query (iq)
* see: https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/#unsubscribing-from-a-muc-room
* @param roomJid for the room to be unsubscribed from
* @param jid user id to be unsubscribed
*/
unsubscribeJidFromRoom(roomJid, jid) {
this.xmppChatAdapter.chatConnectionService.sendIq(xml('iq', { type: 'set', to: roomJid }, xml('unsubscribe', { xmlns: 'urn:xmpp:mucsub:0', jid })));
}
/**
* A user can query the MUC service to get their list of subscriptions.
* see: https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/#g dd ddetting-list-of-subscribed-rooms
*/
async getSubscribedRooms() {
const { local, domain } = this.xmppChatAdapter.chatConnectionService.userJid;
const from = `${local}@${domain}`;
const subscriptions = await this.xmppChatAdapter.chatConnectionService.sendIq(xml('iq', { type: 'get', from, to: 'muc.' + domain }, xml('subscriptions', { xmlns: 'urn:xmpp:mucsub:0' })));
return subscriptions.getChildren('subscription').map(sub => sub.getAttr('jid'));
}
/**
* A subscriber or room moderator can get the list of subscribers by sending <subscriptions/> request directly to the room JID.
* see: https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/#getting-list-of-subscribers-of-a-room
* @param roomJid of the room the get a subscriber list from
*/
getSubscribers(roomJid) {
this.xmppChatAdapter.chatConnectionService.sendIq(xml('iq', { type: 'get', to: roomJid }, xml('subscriptions', { xmlns: 'urn:xmpp:mucsub:0' })));
}
async retrieveSubscriptions() {
const service = await this.serviceDiscoveryPlugin.findService('conference', 'text');
const result = await this.xmppChatAdapter.chatConnectionService.sendIq(makeRetrieveSubscriptionsStanza(service.jid));
const subscriptions = result
.getChild('subscriptions', MUC_SUB_FEATURE_ID)
?.getChildren('subscription')
?.map(subscriptionElement => {
const subscribedEvents = subscriptionElement
.getChildren('event')
?.map(eventElement => eventElement.attrs.node) ?? [];
return [subscriptionElement.attrs.jid, subscribedEvents];
});
return new Map(subscriptions);
}
}
function makeSubscribeRoomStanza(roomJid, nick, nodes) {
return xml('iq', { type: 'set', to: roomJid }, xml('subscribe', { xmlns: MUC_SUB_FEATURE_ID, nick }, ...nodes.map(node => xml('event', { node }))));
}
function makeUnsubscribeRoomStanza(roomJid) {
return xml('iq', { type: 'set', to: roomJid }, xml('unsubscribe', { xmlns: MUC_SUB_FEATURE_ID }));
}
function makeRetrieveSubscriptionsStanza(conferenceServiceJid) {
return xml('iq', { type: 'get', to: conferenceServiceJid }, xml('subscriptions', { xmlns: MUC_SUB_FEATURE_ID }));
}
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{ xml } from '@xmpp/client';\nimport { BehaviorSubject } from 'rxjs';\nimport { XmppChatAdapter } from '../xmpp-chat-adapter.service';\nimport { AbstractXmppPlugin } from './abstract-xmpp-plugin';\nimport { ServiceDiscoveryPlugin } from './service-discovery.plugin';\nimport { Stanza } from '../../../../core/stanza';\n\nexport const MUC_SUB_FEATURE_ID = 'urn:xmpp:mucsub:0';\n\nexport enum MUC_SUB_EVENT_TYPE {\n    presence = 'urn:xmpp:mucsub:nodes:presence',\n    messages = 'urn:xmpp:mucsub:nodes:messages',\n    affiliations = 'urn:xmpp:mucsub:nodes:affiliations',\n    subscribers = 'urn:xmpp:mucsub:nodes:subscribers',\n    config = 'urn:xmpp:mucsub:nodes:config',\n    subject = 'urn:xmpp:mucsub:nodes:subject',\n    system = 'urn:xmpp:mucsub:nodes:system',\n}\n\n/**\n * support for https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/\n */\nexport class MucSubPlugin extends AbstractXmppPlugin {\n    private readonly supportsMucSub$ = new BehaviorSubject<boolean | 'unknown'>('unknown');\n\n    constructor(\n        private readonly xmppChatAdapter: XmppChatAdapter,\n        private readonly serviceDiscoveryPlugin: ServiceDiscoveryPlugin,\n    ) {\n        super();\n    }\n\n    onBeforeOnline(): PromiseLike<void> {\n        return this.determineSupportForMucSub();\n    }\n\n    private async determineSupportForMucSub() {\n        let isSupported: boolean;\n        try {\n            const service = await this.serviceDiscoveryPlugin.findService('conference', 'text');\n            isSupported = service.features.includes(MUC_SUB_FEATURE_ID);\n        } catch (e) {\n            isSupported = false;\n        }\n        this.supportsMucSub$.next(isSupported);\n    }\n\n    onOffline() {\n        this.supportsMucSub$.next('unknown');\n    }\n\n    async subscribeRoom(roomJid: string, nodes: string[] = []): Promise<void> {\n        const nick = this.xmppChatAdapter.chatConnectionService.userJid.local;\n        await this.xmppChatAdapter.chatConnectionService.sendIq(\n            makeSubscribeRoomStanza(roomJid, nick, nodes)\n        );\n    }\n\n    async unsubscribeRoom(roomJid: string): Promise<void> {\n        await this.xmppChatAdapter.chatConnectionService.sendIq(\n            makeUnsubscribeRoomStanza(roomJid)\n        );\n    }\n\n    /**\n     * A room moderator can unsubscribe others providing the their jid as attribute to the information query (iq)\n     * see: https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/#unsubscribing-from-a-muc-room\n     * @param roomJid for the room to be unsubscribed from\n     * @param jid user id to be unsubscribed\n     */\n    unsubscribeJidFromRoom(roomJid: string, jid: string) {\n        this.xmppChatAdapter.chatConnectionService.sendIq(\n            xml('iq', {type: 'set', to: roomJid},\n                xml('unsubscribe', {xmlns: 'urn:xmpp:mucsub:0', jid}),\n            ),\n        );\n    }\n\n    /**\n     * A user can query the MUC service to get their list of subscriptions.\n     * see: https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/#g dd ddetting-list-of-subscribed-rooms\n     */\n    async getSubscribedRooms() {\n        const {local, domain} = this.xmppChatAdapter.chatConnectionService.userJid;\n        const from = `${local}@${domain}`;\n        const subscriptions = await this.xmppChatAdapter.chatConnectionService.sendIq(\n            xml('iq', {type: 'get', from, to: 'muc.' + domain},\n                xml('subscriptions', {xmlns: 'urn:xmpp:mucsub:0'}),\n            ),\n        );\n        return subscriptions.getChildren('subscription').map(sub => sub.getAttr('jid'));\n    }\n\n    /**\n     * A subscriber or room moderator can get the list of subscribers by sending <subscriptions/> request directly to the room JID.\n     * see: https://docs.ejabberd.im/developer/xmpp-clients-bots/extensions/muc-sub/#getting-list-of-subscribers-of-a-room\n     * @param roomJid of the room the get a subscriber list from\n     */\n    getSubscribers(roomJid: string) {\n        this.xmppChatAdapter.chatConnectionService.sendIq(\n            xml('iq', {type: 'get', to: roomJid},\n                xml('subscriptions', {xmlns: 'urn:xmpp:mucsub:0'}),\n            ),\n        );\n    }\n\n    async retrieveSubscriptions(): Promise<Map<string, string[]>> {\n        const service = await this.serviceDiscoveryPlugin.findService('conference', 'text');\n\n        const result = await this.xmppChatAdapter.chatConnectionService.sendIq(\n            makeRetrieveSubscriptionsStanza(service.jid)\n        );\n\n        const subscriptions = result\n            .getChild('subscriptions', MUC_SUB_FEATURE_ID)\n            ?.getChildren('subscription')\n            ?.map(subscriptionElement => {\n                const subscribedEvents: string[] = subscriptionElement\n                    .getChildren('event')\n                    ?.map(eventElement => eventElement.attrs.node) ?? [];\n                return [subscriptionElement.attrs.jid as string, subscribedEvents] as const;\n            });\n\n        return new Map(subscriptions);\n    }\n}\n\nfunction makeSubscribeRoomStanza(roomJid: string, nick: string, nodes: readonly string[]): Stanza {\n    return xml('iq', {type: 'set', to: roomJid},\n        xml('subscribe', {xmlns: MUC_SUB_FEATURE_ID, nick},\n            ...nodes.map(node => xml('event', {node}))\n        )\n    ) as Stanza;\n}\n\nfunction makeUnsubscribeRoomStanza(roomJid: string): Stanza {\n    return xml('iq', {type: 'set', to: roomJid},\n        xml('unsubscribe', {xmlns: MUC_SUB_FEATURE_ID})\n    ) as Stanza;\n}\n\nfunction makeRetrieveSubscriptionsStanza(conferenceServiceJid: string): Stanza {\n    return xml('iq', {type: 'get', to: conferenceServiceJid},\n        xml('subscriptions', {xmlns: MUC_SUB_FEATURE_ID})\n    ) as Stanza;\n}\n"]}