yfJ6BMtE

1async function handleRequest(event) {
2
3  const max_age = 2700
4
5  const request = event.request
6  const url = new URL(request.url);
7  const strUrl = url.toString();
8
9  //Check if the user is logged in
10  const cookie = getCookie(request, "islogged")
11  // User logged in
12  if (cookie) {
13    let response = await fetch(request);
14    return response;
15  }
16
17  // Read the user agent of the request
18  const ua = request.headers.get('user-agent');
19  let uaValue;
20
21  if (ua.match(/mobile/i)) {
22    uaValue = 'mobile';
23  } else {
24    uaValue = 'desktop';
25  }
26
27  // Construct a new response object which distinguishes the cache key by device
28  // type.
29  url.searchParams.set('ua', uaValue);
30  const newRequest = new Request(url, request);
31  const cacheUrl = new URL(newRequest.url)
32
33  // Construct the cache key from the cache URL
34  const cacheKey = new Request(cacheUrl.toString(), request)
35  const cache = caches.default
36
37  // Check whether the value is already available in the cache
38  // if not, you will need to fetch it from origin, and store it in the cache
39  // for future access
40  let response = await cache.match(cacheKey)
41
42  if (!response) {
43    // If not in cache, get it from origin
44    response = await fetch(newRequest)
45
46    // Must use Response constructor to inherit all of response's fields
47    response = new Response(response.body, response)
48
49    // Cache API respects Cache-Control headers. Setting s-max-age to 10
50    // will limit the response to be in cache for 10 seconds max
51
52    // Any changes made to the response here will be reflected in the cached value
53    response.headers.append("Cache-Control", "s-maxage=" + max_age)
54    response.headers.append("Cache-Control", "max-age=0")
55
56    // Store the fetched response as cacheKey
57    // Use waitUntil so you can return the response without blocking on
58    // writing to cache
59    event.waitUntil(cache.put(cacheKey, response.clone()))
60  }
61  return response
62}
63
64addEventListener("fetch", event => {
65  try {
66    const request = event.request
67    return event.respondWith(handleRequest(event))
68  } catch (e) {
69    return event.respondWith(new Response("Error thrown " + e.message))
70  }
71})
72
73
74/**
75 * Gets the cookie with the name from the request headers
76 * @param {Request} request incoming Request
77 * @param {string} name of the cookie to get
78 */
79function getCookie(request, name) {
80  let result = ""
81  const cookieString = request.headers.get("Cookie")
82  if (cookieString) {
83    const cookies = cookieString.split(";")
84    cookies.forEach(cookie => {
85      const cookiePair = cookie.split("=", 2)
86      const cookieName = cookiePair[0].trim()
87      if (cookieName === name) {
88        const cookieVal = cookiePair[1]
89        result = cookieVal
90      }
91    })
92  }
93  return result
94}