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// venue.js
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// Copyright (C) 2022 Digital Telepresence, LLC
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// License: Apache-2.0
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'use strict';
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const https = require('https');
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const fetch = require('node-fetch'); // jshint ignore:line
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const CACHE_DURATION = 60 * 5;
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const { SiteService, SiteError } = require('../../lib/site-lib');
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class VenueService extends SiteService {
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constructor (dtp) {
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super(dtp, module.exports);
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this.soapboxDomain = process.env.DTP_SOAPBOX_HOST || 'shing.tv';
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}
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async start ( ) {
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process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
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this.httpsAgent = new https.Agent({
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rejectUnauthorized: false,
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});
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}
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channelMiddleware ( ) {
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return async (req, res, next) => {
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try {
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if (!res.locals.site || !res.locals.site.shingChannelSlug) {
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return next();
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}
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res.locals.shingChannelFeed = await this.getChannelFeed(res.locals.site.shingChannelSlug, { allowCache: true });
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res.locals.shingChannelStatus = await this.getChannelStatus(res.locals.site.shingChannelSlug, { allowCache: true });
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this.log.debug('channel status', { status: res.locals.shingChannelStatus });
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return next();
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} catch (error) {
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this.log.error('failed to populate Soapbox channel feed', { error });
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return next();
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}
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};
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}
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async getChannelFeed (channelSlug, options) {
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const { cache: cacheService } = this.dtp.services;
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const cacheKey = `venue:ch:${channelSlug}`;
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options = Object.assign({ allowCache: true }, options);
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let json;
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if (options.allowCache) {
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json = await cacheService.getObject(cacheKey);
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if (json) { return json; }
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}
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const requestUrl = `https://${this.soapboxDomain}/channel/${channelSlug}/feed/json`;
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this.log.info('fetching Shing channel feed', { channelSlug, requestUrl });
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const response = await fetch(requestUrl, {
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agent: this.httpsAgent,
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});
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if (!response.ok) {
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throw new SiteError(500, `Failed to fetch Shing channel feed: ${response.statusText}`);
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}
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json = await response.json();
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await cacheService.setObjectEx(cacheKey, CACHE_DURATION, json);
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return json;
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}
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async getChannelStatus (channelSlug, options) {
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const { cache: cacheService } = this.dtp.services;
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const cacheKey = `venue:ch:${channelSlug}:status`;
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options = Object.assign({ allowCache: true }, options);
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let json;
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if (options.allowCache) {
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json = await cacheService.getObject(cacheKey);
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if (json) { return json; }
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}
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const requestUrl = `https://${this.soapboxDomain}/channel/${channelSlug}/status`;
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this.log.info('fetching Shing channel status', { channelSlug, requestUrl });
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const response = await fetch(requestUrl, {
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agent: this.httpsAgent,
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});
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if (!response.ok) {
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throw new SiteError(500, 'Failed to fetch Shing channel status');
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}
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json = await response.json();
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const { channel } = json;
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await cacheService.setObjectEx(cacheKey, 10, channel);
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return channel;
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}
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}
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module.exports = {
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slug: 'venue',
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name: 'venue',
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create: (dtp) => { return new VenueService(dtp); },
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};
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