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HTTP Caching

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This commit is contained in:
Zef Hemel
2022-10-21 16:56:46 +02:00
parent 09b20cadd8
commit dc32ca81a9
4 changed files with 40 additions and 12 deletions
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server/http_server.ts
+24 -4
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@@ -215,16 +215,26 @@ export class HttpServer {
// Serve static files (javascript, css, html)
this.app.use(async ({ request, response }, next) => {
if (request.url.pathname === "/") {
if (request.headers.get("If-Modified-Since") === staticLastModified) {
response.status = 304;
return;
}
response.headers.set("Content-type", "text/html");
response.body = this.assetBundle.readTextFileSync(
"web/index.html",
);
response.headers.set("Last-Modified", staticLastModified);
response.headers.set("ETag", await etag.calculate(response.body));
return;
}
try {
const assetName = `web${request.url.pathname}`;
if (
this.assetBundle.has(assetName) &&
request.headers.get("If-Modified-Since") === staticLastModified
) {
response.status = 304;
return;
}
response.status = 200;
response.headers.set(
"Content-type",
@@ -233,9 +243,9 @@ export class HttpServer {
const data = this.assetBundle.readFileSync(
assetName,
);
response.headers.set("Cache-Control", "no-cache");
response.headers.set("Content-length", "" + data.length);
response.headers.set("Last-Modified", staticLastModified);
response.headers.set("ETag", await etag.calculate(data));
if (request.method === "GET") {
response.body = data;
@@ -299,7 +309,7 @@ export class HttpServer {
});
fsRouter
.get("\/(.+)", async ({ params, response }) => {
.get("\/(.+)", async ({ params, response, request }) => {
const name = params[0];
console.log("Loading file", name);
try {
@@ -307,12 +317,23 @@ export class HttpServer {
name,
"arraybuffer",
);
const lastModifiedHeader = new Date(attachmentData.meta.lastModified)
.toUTCString();
if (request.headers.get("If-Modified-Since") === lastModifiedHeader) {
response.status = 304;
return;
}
response.status = 200;
response.headers.set(
"X-Last-Modified",
"" + attachmentData.meta.lastModified,
);
response.headers.set("Cache-Control", "no-cache");
response.headers.set("X-Permission", attachmentData.meta.perm);
response.headers.set(
"Last-Modified",
lastModifiedHeader,
);
response.headers.set("Content-Type", attachmentData.meta.contentType);
response.body = attachmentData.data as ArrayBuffer;
} catch {
@@ -343,7 +364,6 @@ export class HttpServer {
response.body = "Write failed";
console.error("Pipeline failed", err);
}
console.log("Done with put", name);
})
.options("\/(.+)", async ({ response, params }) => {
const name = params[0];