Mirrors/paste
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Signed-off-by: Joe Ma <rikkaneko23@gmail.com>
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Joe Ma 2022-06-02 14:13:54 +08:00
parent 29a6da681e
commit c9e3376d21
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2 changed files with 47 additions and 25 deletions
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7
paste.html
View file

@ -24,8 +24,7 @@
</head>
<body>
<h3>Paste service - <a href="https://paste.nekoul.com">paste.nekoul.com</a></h3>
<a href="https://nekoul.com">[Homepage]</a><a href="https://paste.nekoul.com/api">[API]</a>
<h2>Paste Service</h2>
<h4>Upload file</h4>
<form action="https://paste.nekoul.com" method="POST" enctype=multipart/form-data>
<div>
@ -63,6 +62,8 @@
document.getElementById("text_input").addEventListener("input", update_textarea, false);
</script>
<br><p>&copy; 2022 rikkaneko</p>
<br>
<a href="https://nekoul.com">[Homepage]</a><a href="https://paste.nekoul.com/api">[API]</a>
<p>&copy; 2022 rikkaneko</p>
</body>
</html>

65
src/index.ts
View file

@ -86,7 +86,11 @@ export default {
switch (method) {
// Fetch the HTML for uploading text/file
case "GET": {
return await fetch(PASTE_INDEX_HTML_URL).then(value => {
return await fetch(PASTE_INDEX_HTML_URL, {
cf: {
cacheEverything: true
}
}).then(value => {
let res = new Response(value.body, value);
// Add the correct content-type to response header
res.headers.set("content-type", "text/html; charset=UTF-8");
@ -208,32 +212,45 @@ export default {
switch (method) {
// Fetch the paste by uuid
case "GET": {
let res = await s3.fetch(`${env.ENDPOINT}/${uuid}`, {
method: "GET"
});
// Stream request
let {readable, writable} = new TransformStream();
if (res.body === null) {
// UUID exists in index but not found in remote object storage service
return new Response("Internal server error.\n", {
status: 500
// Enable CF cache for authorized request
let cache = caches.default;
// Match in existing cache
let res = await cache.match(request.url);
if (res === undefined) {
// Fetch form origin if not hit cache
let origin = await s3.fetch(`${env.ENDPOINT}/${uuid}`, {
method: "GET"
});
}
// Streaming request
res.body.pipeTo(writable);
// Handle response format
// Direct download
if (option === "download") {
return new Response(readable, {
headers: {
"Content-Disposition": `attachment; filename="${encodeURIComponent(descriptor.title ?? uuid)}"`
res = new Response(origin.body, origin);
// Remove x-amz-* headers
for (let [key, value] of res.headers.entries()) {
if (key.startsWith("x-amz")) {
res.headers.delete(key);
}
});
}
if (!res.ok) {
// UUID exists in index but not found in remote object storage service
return new Response("Internal server error.\n", {
status: 500
});
}
res.headers.append("Cache-Control", "max-age=3600");
if (option === "download") {
res.headers.append("Content-Disposition",
`attachment; filename="${encodeURIComponent(descriptor.title ?? uuid)}"`);
}
// res.body cannot be read twice
await cache.put(request.url, res.clone());
return res;
}
// Default format
return new Response(readable);
// Cache hit
return res;
}
// Delete paste by uuid
@ -252,6 +269,10 @@ export default {
await env.PASTE_INDEX.delete(uuid);
let counter = await env.PASTE_INDEX.get("__count__") || "1";
await env.PASTE_INDEX.put("__count__", (Number(counter) - 1).toString());
// Invalidate CF cache
let cache = caches.default;
await cache.delete(request.url);
return new Response("OK\n");
} else {
return new Response("Unable to process such request.\n", {