31 lines
978 B
TypeScript
31 lines
978 B
TypeScript
import { posts } from '@/helpers/schema';
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import { urlJoin } from '@/helpers/tools';
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import { defineMiddleware } from 'astro:middleware';
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const mappings = new Map<string, string>();
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const rewrites = posts.map((post) => ({
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sources: [
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urlJoin('/', post.slug),
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...post.alias.flatMap((alias) => [urlJoin('/', alias), urlJoin('/posts/', alias)]),
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],
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target: post.permalink,
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}));
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for (const rewrite of rewrites) {
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for (const source of rewrite.sources) {
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mappings.set(source, rewrite.target);
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}
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}
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export const onRequest = defineMiddleware(({ request: { method }, url: { pathname }, redirect }, next) => {
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// This is used for redirect my old blog posts to a new mapping.
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const newTarget = mappings.get(pathname.endsWith('/') ? pathname.substring(0, pathname.length - 1) : pathname);
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if (method === 'GET' && newTarget !== undefined) {
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return redirect(newTarget, 301);
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}
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// return a Response or the result of calling `next()`
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return next();
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});
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