b522b94cce
## Feature
As the title, support `has` match, `local` that works the same with the `rewrites` and `redirects` of next.config.js on middleware config. With this PR, you can write the config like the following:
```js
export const config = {
matcher: [
"/foo",
{ source: "/bar" },
{
source: "/baz",
has: [
{
type: 'header',
key: 'x-my-header',
value: 'my-value',
}
]
},
{
source: "/en/asdf",
locale: false,
},
]
}
```
Also, fixes https://github.com/vercel/next.js/issues/39428
related https://github.com/vercel/edge-functions/issues/178, https://github.com/vercel/edge-functions/issues/179
- [x] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [x] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have helpful link attached, see `contributing.md`
Co-authored-by: JJ Kasper <jj@jjsweb.site>
59 lines
1.9 KiB
TypeScript
59 lines
1.9 KiB
TypeScript
import type { MiddlewareMatcher } from '../../analysis/get-page-static-info'
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import { getModuleBuildInfo } from './get-module-build-info'
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import { stringifyRequest } from '../stringify-request'
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import { MIDDLEWARE_LOCATION_REGEXP } from '../../../lib/constants'
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export type MiddlewareLoaderOptions = {
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absolutePagePath: string
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page: string
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matchers?: string
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}
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// matchers can have special characters that break the loader params
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// parsing so we base64 encode/decode the string
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export function encodeMatchers(matchers: MiddlewareMatcher[]) {
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return Buffer.from(JSON.stringify(matchers)).toString('base64')
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}
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export function decodeMatchers(encodedMatchers: string) {
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return JSON.parse(
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Buffer.from(encodedMatchers, 'base64').toString()
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) as MiddlewareMatcher[]
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}
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export default function middlewareLoader(this: any) {
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const {
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absolutePagePath,
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page,
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matchers: encodedMatchers,
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}: MiddlewareLoaderOptions = this.getOptions()
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const matchers = encodedMatchers ? decodeMatchers(encodedMatchers) : undefined
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const stringifiedPagePath = stringifyRequest(this, absolutePagePath)
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const buildInfo = getModuleBuildInfo(this._module)
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buildInfo.nextEdgeMiddleware = {
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matchers,
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page:
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page.replace(new RegExp(`/${MIDDLEWARE_LOCATION_REGEXP}$`), '') || '/',
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}
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return `
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import { adapter, blockUnallowedResponse, enhanceGlobals } from 'next/dist/server/web/adapter'
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enhanceGlobals()
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var mod = require(${stringifiedPagePath})
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var handler = mod.middleware || mod.default;
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if (typeof handler !== 'function') {
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throw new Error('The Middleware "pages${page}" must export a \`middleware\` or a \`default\` function');
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}
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export default function (opts) {
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return blockUnallowedResponse(adapter({
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...opts,
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page: ${JSON.stringify(page)},
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handler,
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}))
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}
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`
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}
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