77 lines
2.3 KiB
JavaScript
77 lines
2.3 KiB
JavaScript
const cacheManager = require('cache-manager');
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const mangodbStore = require('cache-manager-mongodb');
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const GLOBAL_KEY_PREFIX = 'torrentio-addon';
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const STREAM_KEY_PREFIX = `${GLOBAL_KEY_PREFIX}|stream`;
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const RESOLVED_URL_KEY_PREFIX = `${GLOBAL_KEY_PREFIX}|resolved`;
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const PROXY_KEY_PREFIX = `${GLOBAL_KEY_PREFIX}|proxy`;
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const USER_AGENT_KEY_PREFIX = `${GLOBAL_KEY_PREFIX}|agent`;
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const STREAM_TTL = process.env.STREAM_TTL || 4 * 60 * 60; // 4 hours
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const STREAM_EMPTY_TTL = process.env.STREAM_EMPTY_TTL || 30 * 60; // 30 minutes
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const RESOLVED_URL_TTL = 2 * 60; // 2 minutes
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const PROXY_TTL = 30 * 60; // 60 minutes
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const USER_AGENT_TTL = 2 * 24 * 60 * 60; // 2 days
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// When the streams are empty we want to cache it for less time in case of timeouts or failures
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const MONGO_URI = process.env.MONGODB_URI;
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const NO_CACHE = process.env.NO_CACHE || false;
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const remoteCache = initiateRemoteCache();
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function initiateRemoteCache() {
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if (NO_CACHE) {
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return null;
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} else if (MONGO_URI) {
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return cacheManager.caching({
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store: mangodbStore,
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uri: MONGO_URI,
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options: {
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collection: 'torrentio_addon_collection',
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useNewUrlParser: true,
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useUnifiedTopology: false,
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ttl: STREAM_EMPTY_TTL
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},
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ttl: STREAM_EMPTY_TTL,
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ignoreCacheErrors: true
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});
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} else {
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return cacheManager.caching({
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store: 'memory',
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ttl: STREAM_EMPTY_TTL
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});
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}
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}
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function cacheWrap(cache, key, method, options) {
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if (NO_CACHE || !cache) {
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return method();
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}
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return cache.wrap(key, method, options);
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}
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function cacheWrapStream(id, method) {
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return cacheWrap(remoteCache, `${STREAM_KEY_PREFIX}:${id}`, method, {
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ttl: (streams) => streams.length ? STREAM_TTL : STREAM_EMPTY_TTL
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});
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}
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function cacheWrapResolvedUrl(id, method) {
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return cacheWrap(remoteCache, `${RESOLVED_URL_KEY_PREFIX}:${id}`, method, { ttl: RESOLVED_URL_TTL });
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}
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function cacheWrapProxy(id, method) {
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return cacheWrap(remoteCache, `${PROXY_KEY_PREFIX}:${id}`, method, { ttl: PROXY_TTL });
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}
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function cacheUserAgent(id, method) {
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return cacheWrap(remoteCache, `${USER_AGENT_KEY_PREFIX}:${id}`, method, { ttl: USER_AGENT_TTL });
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}
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function uncacheProxy(id) {
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return remoteCache.del(`${PROXY_KEY_PREFIX}:${id}`);
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}
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module.exports = { cacheWrapStream, cacheWrapResolvedUrl, cacheWrapProxy, cacheUserAgent, uncacheProxy };
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