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scrap/node_modules/next/dist/esm/build/webpack/loaders/next-middleware-loader.js
2024-09-24 03:52:46 +00:00

35 lines
1.5 KiB
JavaScript

import { getModuleBuildInfo } from "./get-module-build-info";
import { MIDDLEWARE_LOCATION_REGEXP } from "../../../lib/constants";
import { loadEntrypoint } from "../../load-entrypoint";
// matchers can have special characters that break the loader params
// parsing so we base64 encode/decode the string
export function encodeMatchers(matchers) {
return Buffer.from(JSON.stringify(matchers)).toString("base64");
}
export function decodeMatchers(encodedMatchers) {
return JSON.parse(Buffer.from(encodedMatchers, "base64").toString());
}
export default async function middlewareLoader() {
const { absolutePagePath, page, rootDir, matchers: encodedMatchers, preferredRegion, middlewareConfig: middlewareConfigBase64 } = this.getOptions();
const matchers = encodedMatchers ? decodeMatchers(encodedMatchers) : undefined;
const pagePath = this.utils.contextify(this.context || this.rootContext, absolutePagePath);
const middlewareConfig = JSON.parse(Buffer.from(middlewareConfigBase64, "base64").toString());
const buildInfo = getModuleBuildInfo(this._module);
buildInfo.nextEdgeMiddleware = {
matchers,
page: page.replace(new RegExp(`/${MIDDLEWARE_LOCATION_REGEXP}$`), "") || "/"
};
buildInfo.rootDir = rootDir;
buildInfo.route = {
page,
absolutePagePath,
preferredRegion,
middlewareConfig
};
return await loadEntrypoint("middleware", {
VAR_USERLAND: pagePath,
VAR_DEFINITION_PAGE: page
});
}
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