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syntax fixes

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This commit is contained in:
Evan Pratten 2023-03-27 14:37:25 -04:00
parent 889e4d2b2c
commit a3d48961f6
1 changed files with 31 additions and 33 deletions
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64
functions/v2/[[image]].js
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@ -9,41 +9,39 @@ const DEFAULT_USER = "ewpratten";
// Info needed in order to partially parse OCIDS API endpoints.
const POSSIBLE_ACTION_TOKENS = ["blobs", "manifests", "tags", "referrers"];
export default {
async fetch(request, env) {
export function onRequest(context) {
// Parse the path out of the url
const url = new URL(request.url);
// Parse the path out of the url
const url = new URL(context.request.url);
// The first segment of the path is probably the user
var path_split = url.pathname.split("/");
// The image name is the part between `/vx/` and the first action token
var image_name = "";
for (var token of path_split){
if (token == "v2"){
continue;
}
if (POSSIBLE_ACTION_TOKENS.includes(token)){
break;
}
image_name += token + "/";
// The first segment of the path is probably the user
var path_split = url.pathname.split("/");
// The image name is the part between `/vx/` and the first action token
var image_name = "";
for (var token of path_split) {
if (token == "v2") {
continue;
}
// The action_url is everything after the image name
var action_url = url.pathname.replace(`/v2/${image_name}`, "");
// If there is a slash and the first part is not an allowed user, fail
var image_name_parts = image_name.split("/");
if (image_name_parts.length > 1 && !ALLOWED_USERS.includes(image_name_parts[0])){
return new Response(`User does not exist ${image_name_parts[0]}`, {status: 404});
if (POSSIBLE_ACTION_TOKENS.includes(token)) {
break;
}
// If there is no slash, add the default user to the image name
if (image_name_parts.length == 1){
image_name = `${DEFAULT_USER}/${image_name}`;
}
return Response.redirect(`https://ghcr.io/v2/${image_name}/${action_url}`, 302);
image_name += token + "/";
}
}
// The action_url is everything after the image name
var action_url = url.pathname.replace(`/v2/${image_name}`, "");
// If there is a slash and the first part is not an allowed user, fail
var image_name_parts = image_name.split("/");
if (image_name_parts.length > 1 && !ALLOWED_USERS.includes(image_name_parts[0])) {
return new Response(`User does not exist ${image_name_parts[0]}`, { status: 404 });
}
// If there is no slash, add the default user to the image name
if (image_name_parts.length == 1) {
image_name = `${DEFAULT_USER}/${image_name}`;
}
return Response.redirect(`https://ghcr.io/v2/${image_name}/${action_url}`, 302);
}