@pazznetwork/ngx-chat
Version:
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78 lines • 12.6 kB
JavaScript
import { xml } from '@xmpp/client';
import { BehaviorSubject } from 'rxjs';
import { AbstractXmppPlugin } from './abstract-xmpp-plugin';
/**
* XEP-0191: Blocking Command
* https://xmpp.org/extensions/xep-0191.html
*/
export class BlockPlugin extends AbstractXmppPlugin {
constructor(xmppChatAdapter, serviceDiscoveryPlugin) {
super();
this.xmppChatAdapter = xmppChatAdapter;
this.serviceDiscoveryPlugin = serviceDiscoveryPlugin;
this.supportsBlock$ = new BehaviorSubject('unknown');
}
async onBeforeOnline() {
const supportsBlock = await this.determineSupportForBlock();
this.supportsBlock$.next(supportsBlock);
if (supportsBlock) {
await this.requestBlockedJids();
}
}
async determineSupportForBlock() {
try {
return await this.serviceDiscoveryPlugin.supportsFeature(this.xmppChatAdapter.chatConnectionService.userJid.domain, 'urn:xmpp:blocking');
}
catch (e) {
return false;
}
}
onOffline() {
this.supportsBlock$.next('unknown');
this.xmppChatAdapter.blockedContactIds$.next(new Set());
}
blockJid(jid) {
return this.xmppChatAdapter.chatConnectionService.sendIq(xml('iq', { type: 'set' }, xml('block', { xmlns: 'urn:xmpp:blocking' }, xml('item', { jid }))));
}
unblockJid(jid) {
return this.xmppChatAdapter.chatConnectionService.sendIq(xml('iq', { type: 'set' }, xml('unblock', { xmlns: 'urn:xmpp:blocking' }, xml('item', { jid }))));
}
async requestBlockedJids() {
const blockListResponse = await this.xmppChatAdapter.chatConnectionService.sendIq(xml('iq', { type: 'get' }, xml('blocklist', { xmlns: 'urn:xmpp:blocking' })));
const blockedJids = blockListResponse
.getChild('blocklist')
.getChildren('item')
.map(e => e.attrs.jid);
this.xmppChatAdapter.blockedContactIds$.next(new Set(blockedJids));
}
handleStanza(stanza) {
const { from } = stanza.attrs;
if (from && from === this.xmppChatAdapter.chatConnectionService.userJid?.bare().toString()) {
const blockPush = stanza.getChild('block', 'urn:xmpp:blocking');
const unblockPush = stanza.getChild('unblock', 'urn:xmpp:blocking');
const blockList = this.xmppChatAdapter.blockedContactIds$.getValue();
if (blockPush) {
blockPush.getChildren('item')
.map(e => e.attrs.jid)
.forEach(jid => blockList.add(jid));
this.xmppChatAdapter.blockedContactIds$.next(blockList);
return true;
}
else if (unblockPush) {
const jidsToUnblock = unblockPush.getChildren('item').map(e => e.attrs.jid);
if (jidsToUnblock.length === 0) {
// unblock everyone
blockList.clear();
}
else {
// unblock individually
jidsToUnblock.forEach(jid => blockList.delete(jid));
}
this.xmppChatAdapter.blockedContactIds$.next(blockList);
return true;
}
}
return false;
}
}
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{ xml } from '@xmpp/client';\nimport { BehaviorSubject } from 'rxjs';\nimport { Stanza } from '../../../../core/stanza';\nimport { XmppChatAdapter } from '../xmpp-chat-adapter.service';\nimport { AbstractXmppPlugin } from './abstract-xmpp-plugin';\nimport { ServiceDiscoveryPlugin } from './service-discovery.plugin';\n\n/**\n * XEP-0191: Blocking Command\n * https://xmpp.org/extensions/xep-0191.html\n */\nexport class BlockPlugin extends AbstractXmppPlugin {\n\n    public supportsBlock$ = new BehaviorSubject<boolean | 'unknown'>('unknown');\n\n    constructor(\n        private xmppChatAdapter: XmppChatAdapter,\n        private serviceDiscoveryPlugin: ServiceDiscoveryPlugin,\n    ) {\n        super();\n    }\n\n    async onBeforeOnline() {\n        const supportsBlock = await this.determineSupportForBlock();\n        this.supportsBlock$.next(supportsBlock);\n        if (supportsBlock) {\n            await this.requestBlockedJids();\n        }\n    }\n\n    private async determineSupportForBlock() {\n        try {\n            return await this.serviceDiscoveryPlugin.supportsFeature(\n                this.xmppChatAdapter.chatConnectionService.userJid.domain,\n                'urn:xmpp:blocking');\n        } catch (e) {\n            return false;\n        }\n    }\n\n    onOffline() {\n        this.supportsBlock$.next('unknown');\n        this.xmppChatAdapter.blockedContactIds$.next(new Set<string>());\n    }\n\n    blockJid(jid: string) {\n        return this.xmppChatAdapter.chatConnectionService.sendIq(\n            xml('iq', {type: 'set'},\n                xml('block', {xmlns: 'urn:xmpp:blocking'},\n                    xml('item', {jid}))));\n    }\n\n    unblockJid(jid: string) {\n        return this.xmppChatAdapter.chatConnectionService.sendIq(\n            xml('iq', {type: 'set'},\n                xml('unblock', {xmlns: 'urn:xmpp:blocking'},\n                    xml('item', {jid}))));\n    }\n\n    private async requestBlockedJids() {\n        const blockListResponse = await this.xmppChatAdapter.chatConnectionService.sendIq(\n            xml('iq', {type: 'get'},\n                xml('blocklist', {xmlns: 'urn:xmpp:blocking'})\n            )\n        );\n\n        const blockedJids = blockListResponse\n            .getChild('blocklist')\n            .getChildren('item')\n            .map(e => e.attrs.jid);\n\n        this.xmppChatAdapter.blockedContactIds$.next(new Set<string>(blockedJids));\n    }\n\n    handleStanza(stanza: Stanza): boolean {\n        const {from} = stanza.attrs;\n        if (from && from === this.xmppChatAdapter.chatConnectionService.userJid?.bare().toString()) {\n            const blockPush = stanza.getChild('block', 'urn:xmpp:blocking');\n            const unblockPush = stanza.getChild('unblock', 'urn:xmpp:blocking');\n            const blockList = this.xmppChatAdapter.blockedContactIds$.getValue();\n            if (blockPush) {\n                blockPush.getChildren('item')\n                    .map(e => e.attrs.jid as string)\n                    .forEach(jid => blockList.add(jid));\n                this.xmppChatAdapter.blockedContactIds$.next(blockList);\n                return true;\n            } else if (unblockPush) {\n                const jidsToUnblock = unblockPush.getChildren('item').map(e => e.attrs.jid as string);\n                if (jidsToUnblock.length === 0) {\n                    // unblock everyone\n                    blockList.clear();\n                } else {\n                    // unblock individually\n                    jidsToUnblock.forEach(jid => blockList.delete(jid));\n                }\n                this.xmppChatAdapter.blockedContactIds$.next(blockList);\n                return true;\n            }\n        }\n        return false;\n    }\n\n}\n"]}