276 lines
8.6 KiB
Plaintext
276 lines
8.6 KiB
Plaintext
'use strict';
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importScripts("<%= "#{Discourse.asset_host}#{Discourse.base_path}/javascripts/workbox/workbox-sw.js" %>");
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workbox.setConfig({
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modulePathPrefix: "<%= "#{Discourse.asset_host}#{Discourse.base_path}/javascripts/workbox" %>",
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debug: false
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});
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var authUrls = ["auth", "session/sso_login", "session/sso"].map(path => `<%= Discourse.base_path %>/${path}`);
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var chatRegex = /\/chat\/channel\/(\d+)\//;
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var inlineReplyIcon = "<%= UrlHelper.absolute("/images/push-notifications/inline_reply.png") %>";
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var cacheVersion = "1";
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var discourseCacheName = "discourse-" + cacheVersion;
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var externalCacheName = "external-" + cacheVersion;
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// Chrome 97 shipped with broken samesite cookie handling when proxying requests through service workers
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// https://bugs.chromium.org/p/chromium/issues/detail?id=1286367
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var chromeVersionMatch = navigator.userAgent.match(/Chrome\/97.0.(\d+)/);
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var isBrokenChrome97 = chromeVersionMatch && parseInt(chromeVersionMatch[1]) <= 4692;
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var isApple = /iPhone|iPod|Mac OS/.test(navigator.userAgent);
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// Cache all GET requests, so Discourse can be used while offline
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workbox.routing.registerRoute(
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function(args) {
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return args.url.origin === location.origin && !authUrls.some(u => args.url.pathname.startsWith(u)) && !isBrokenChrome97 && !isApple;
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}, // Match all except auth routes
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new workbox.strategies.NetworkFirst({ // This will only use the cache when a network request fails
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cacheName: discourseCacheName,
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plugins: [
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new workbox.cacheableResponse.Plugin({
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statuses: [200] // opaque responses will return status code '0'
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}), // for s3 secure uploads signed urls
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new workbox.expiration.Plugin({
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maxAgeSeconds: 7* 24 * 60 * 60, // 7 days
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maxEntries: 250,
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purgeOnQuotaError: true, // safe to automatically delete if exceeding the available storage
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}),
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],
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})
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);
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var cdnUrls = [];
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<% if GlobalSetting.try(:cdn_cors_enabled) %>
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cdnUrls = ["<%= "#{GlobalSetting.s3_cdn_url}" %>", "<%= "#{GlobalSetting.cdn_url}" %>"].filter(Boolean);
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if (cdnUrls.length > 0) {
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var cdnCacheName = "cdn-" + cacheVersion;
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var cdnUrl = "<%= "#{GlobalSetting.cdn_url}" %>";
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var appendQueryStringPlugin = {
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requestWillFetch: function (args) {
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var request = args.request;
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if (request.url.startsWith(cdnUrl)) {
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var url = new URL(request.url);
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// Using this temporary query param to force browsers to redownload images from server.
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url.searchParams.append('refresh', 'true');
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return new Request(url.href, request);
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}
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return request;
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}
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};
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workbox.routing.registerRoute(
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function(args) {
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var matching = cdnUrls.filter(
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function(url) {
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return args.url.href.startsWith(url);
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}
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);
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return matching.length > 0;
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}, // Match all cdn resources
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new workbox.strategies.NetworkFirst({ // This will only use the cache when a network request fails
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cacheName: cdnCacheName,
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fetchOptions: {
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mode: 'cors',
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credentials: 'omit'
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},
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plugins: [
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new workbox.cacheableResponse.Plugin({
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statuses: [200] // opaque responses will return status code '0'
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}),
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new workbox.expiration.Plugin({
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maxAgeSeconds: 7* 24 * 60 * 60, // 7 days
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maxEntries: 250,
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purgeOnQuotaError: true, // safe to automatically delete if exceeding the available storage
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}),
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appendQueryStringPlugin
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],
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})
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);
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}
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<% end %>
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workbox.routing.registerRoute(
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function(args) {
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if (args.url.origin === location.origin) {
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return false;
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}
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var matching = cdnUrls.filter(
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function(url) {
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return args.url.href.startsWith(url);
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}
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);
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return matching.length === 0;
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}, // Match all other external resources
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new workbox.strategies.NetworkFirst({ // This will only use the cache when a network request fails
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cacheName: externalCacheName,
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plugins: [
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new workbox.cacheableResponse.Plugin({
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statuses: [200] // opaque responses will return status code '0'
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}),
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new workbox.expiration.Plugin({
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maxAgeSeconds: 7* 24 * 60 * 60, // 7 days
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maxEntries: 250,
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purgeOnQuotaError: true, // safe to automatically delete if exceeding the available storage
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}),
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],
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})
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);
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var idleThresholdTime = 1000 * 10; // 10 seconds
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var lastAction = -1;
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function isIdle() {
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return lastAction + idleThresholdTime < Date.now();
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}
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function showNotification(title, body, icon, badge, tag, baseUrl, url) {
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var notificationOptions = {
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body: body,
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icon: icon,
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badge: badge,
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data: { url: url, baseUrl: baseUrl },
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tag: tag
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}
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if (chatRegex.test(url)) {
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notificationOptions['actions'] = [{
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action: "reply",
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title: "Reply",
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placeholder: "reply",
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type: "text",
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icon: inlineReplyIcon
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}];
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}
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return self.registration.showNotification(title, notificationOptions);
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}
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self.addEventListener('push', function(event) {
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var payload = event.data.json();
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if(!isIdle() && payload.hide_when_active) {
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return false;
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}
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event.waitUntil(
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self.registration.getNotifications({ tag: payload.tag }).then(function(notifications) {
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if (notifications && notifications.length > 0) {
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notifications.forEach(function(notification) {
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notification.close();
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});
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}
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return showNotification(payload.title, payload.body, payload.icon, payload.badge, payload.tag, payload.base_url, payload.url);
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})
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);
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});
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self.addEventListener('notificationclick', function(event) {
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// Android doesn't close the notification when you click on it
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// See: http://crbug.com/463146
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event.notification.close();
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var url = event.notification.data.url;
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var baseUrl = event.notification.data.baseUrl;
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if (event.action === "reply") {
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let csrf;
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fetch("/session/csrf", {
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credentials: "include",
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headers: {
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Accept: "application/json",
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},
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})
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.then((response) => {
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if (!response.ok) {
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throw new Error("Network response was not OK");
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}
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return response.json();
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})
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.then((data) => {
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csrf = data.csrf;
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let chatTest = url.match(chatRegex);
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if (chatTest.length > 0) {
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let chatChannel = chatTest[1];
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fetch(`${baseUrl}/chat/${chatChannel}.json`, {
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credentials: "include",
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headers: {
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"Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
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"X-CSRF-Token": csrf,
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},
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body: `message=${event.reply}`,
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method: "POST",
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mode: "cors",
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});
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}
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});
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} else {
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// This looks to see if the current window is already open and
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// focuses if it is
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event.waitUntil(
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clients.matchAll({ type: "window" }).then(function (clientList) {
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var reusedClientWindow = clientList.some(function (client) {
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if (client.url === baseUrl + url && "focus" in client) {
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client.focus();
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return true;
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}
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if ("postMessage" in client && "focus" in client) {
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client.focus();
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client.postMessage({ url: url });
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return true;
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}
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return false;
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});
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if (!reusedClientWindow && clients.openWindow)
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return clients.openWindow(baseUrl + url);
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})
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);
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}
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});
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self.addEventListener('message', function(event) {
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if('lastAction' in event.data){
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lastAction = event.data.lastAction;
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}
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});
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self.addEventListener('pushsubscriptionchange', function(event) {
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event.waitUntil(
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Promise.all(
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fetch('<%= Discourse.base_url %>/push_notifications/subscribe', {
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method: 'POST',
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headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
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body: new URLSearchParams({
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"subscription[endpoint]": event.newSubscription.endpoint,
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"subscription[keys][auth]": event.newSubscription.toJSON().keys.auth,
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"subscription[keys][p256dh]": event.newSubscription.toJSON().keys.p256dh,
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"send_confirmation": false
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})
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}),
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fetch('<%= Discourse.base_url %>/push_notifications/unsubscribe', {
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method: 'POST',
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headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
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body: new URLSearchParams({
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"subscription[endpoint]": event.oldSubscription.endpoint,
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"subscription[keys][auth]": event.oldSubscription.toJSON().keys.auth,
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"subscription[keys][p256dh]": event.oldSubscription.toJSON().keys.p256dh
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})
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})
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)
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);
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});
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<% DiscoursePluginRegistry.service_workers.each do |js| %>
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<%=raw "#{File.read(js)}" %>
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<% end %>
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