Created
October 9, 2021 13:24
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cloudflare workers script; http to https redirect, with /file/<bucket-name>/ deletion for backblaze b2. https://scrapbox.io/heguro/Backblaze_B2_+_Cloudflare
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| addEventListener("fetch", (event) => { | |
| event.respondWith( | |
| handleRequest(event.request).catch( | |
| (err) => new Response(err.stack, { status: 500 }) | |
| ) | |
| ); | |
| }); | |
| /** | |
| * @param {Request} request | |
| * @returns {Promise<Response>} | |
| */ | |
| async function handleRequest(request) { | |
| const url = new URL(request.url); | |
| if (url.protocol === 'http:') { | |
| // https にする | |
| url.protocol = 'https:'; | |
| // URL についてる /file/<bucker-name> を外す | |
| url.pathname = url.pathname.replace(/^\/file\/[\w-]+\//, '/'); | |
| // bucket 内にホスト名のディレクトリを作って運用してる場合それも外す | |
| if (url.pathname.startsWith(`/${url.hostname}/`)) { | |
| url.pathname = url.pathname.replace(/^\/[^\/]+\//, '/'); | |
| } | |
| const htmlUrl = url.href.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '&').replace(/'/g, '''); | |
| return new Response( | |
| `<!DOCTYPE html><html><head><title>Redirecting</title></head><body>Redirecting to <a href="${ | |
| htmlUrl | |
| }">${ | |
| htmlUrl | |
| }</a></body></html>`, | |
| { | |
| status: 301, | |
| headers: {'Location': url.href} | |
| } | |
| ); | |
| } | |
| return new Response('this script does not accept https'); | |
| } |
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