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107 lines
3.5 KiB
TypeScript
107 lines
3.5 KiB
TypeScript
/**
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* Copyright (c) 2021 OpenLens Authors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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import { computed, observable, reaction } from "mobx";
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import { WeblinkStore } from "../../common/weblink-store";
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import { WebLink } from "../../common/catalog-entities";
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import { catalogEntityRegistry } from "../catalog";
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import got from "got";
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import type { Disposer } from "../../common/utils";
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import { random } from "lodash";
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async function validateLink(link: WebLink) {
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try {
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const response = await got.get(link.spec.url, {
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throwHttpErrors: false,
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timeout: 20_000,
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});
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if (response.statusCode >= 200 && response.statusCode < 500) {
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link.status.phase = "available";
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} else {
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link.status.phase = "unavailable";
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}
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} catch {
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link.status.phase = "unavailable";
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}
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}
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export function syncWeblinks() {
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const weblinkStore = WeblinkStore.getInstance();
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const webLinkEntities = observable.map<string, [WebLink, Disposer]>();
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function periodicallyCheckLink(link: WebLink): Disposer {
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validateLink(link);
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let interval: NodeJS.Timeout;
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const timeout = setTimeout(() => {
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interval = setInterval(() => validateLink(link), 60 * 60 * 1000); // every 60 minutes
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}, random(0, 5 * 60 * 1000, false)); // spread out over 5 minutes
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return () => {
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clearTimeout(timeout);
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clearInterval(interval);
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};
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}
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reaction(() => weblinkStore.weblinks, (links) => {
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const seenWeblinks = new Set<string>();
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for (const weblinkData of links) {
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seenWeblinks.add(weblinkData.id);
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if (!webLinkEntities.has(weblinkData.id)) {
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const link = new WebLink({
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metadata: {
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uid: weblinkData.id,
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name: weblinkData.name,
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source: "local",
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labels: {},
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},
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spec: {
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url: weblinkData.url,
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},
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status: {
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phase: "available",
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active: true,
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},
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});
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webLinkEntities.set(weblinkData.id, [
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link,
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periodicallyCheckLink(link),
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]);
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}
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}
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// Stop checking and remove weblinks that are no longer in the store
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for (const [weblinkId, [, disposer]] of webLinkEntities) {
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if (!seenWeblinks.has(weblinkId)) {
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disposer();
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webLinkEntities.delete(weblinkId);
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}
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}
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}, { fireImmediately: true });
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catalogEntityRegistry.addComputedSource("weblinks", computed(() => Array.from(webLinkEntities.values(), ([link]) => link)));
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}
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