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67 lines
1.7 KiB
67 lines
1.7 KiB
// gab-tv.js
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// Copyright (C) 2021 Digital Telepresence, LLC
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// License: Apache-2.0
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'use strict';
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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 } = require('../../lib/site-lib');
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class GabTVService extends SiteService {
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constructor (dtp) {
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super(dtp, module.exports);
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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.gabtvUrl) {
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return next();
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}
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this.log.debug('GabTV URL', { url: res.locals.site.gabtvUrl });
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const urlParts = res.locals.site.gabtvUrl.split('/');
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const channelSlug = urlParts[urlParts.length - 1];
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res.locals.gabTvChannel = await this.getChannelEpisodes(channelSlug, { allowCache: true });
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return next();
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} catch (error) {
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this.log.error('failed to populdate Gab TV channel', { error });
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return next();
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}
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};
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}
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async getChannelEpisodes (channelSlug, options) {
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const { cache: cacheService } = this.dtp.services;
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const cacheKey = `gabtv:ch:${channelSlug}`;
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options = Object.assign({
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allowCache: true,
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}, options);
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let json;
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if (options.allowCache) {
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json = await cacheService.getObject(cacheKey);
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if (json) {
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return json;
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}
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}
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const response = await fetch(`https://tv.gab.com/channel/${channelSlug}/feed/json`);
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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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}
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module.exports = {
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logId: 'svc:gab-tv',
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index: 'gabTV',
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className: 'GabTVService',
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create: (dtp) => { return new GabTVService(dtp); },
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}; |