| 1 | /**
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| 2 | * Copyright (c) 2015-present, Facebook, Inc.
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| 3 | *
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| 4 | * This source code is licensed under the MIT license found in the
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| 5 | * LICENSE file in the root directory of this source tree.
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| 6 | */
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| 7 | ;
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| 8 |
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| 9 | const path = require('path');
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| 10 |
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| 11 | module.exports = function createRedirectServedPathMiddleware(servedPath) {
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| 12 | // remove end slash so user can land on `/test` instead of `/test/`
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| 13 | servedPath = servedPath.slice(0, -1);
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| 14 | return function redirectServedPathMiddleware(req, res, next) {
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| 15 | if (
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| 16 | servedPath === '' ||
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| 17 | req.url === servedPath ||
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| 18 | req.url.startsWith(servedPath)
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| 19 | ) {
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| 20 | next();
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| 21 | } else {
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| 22 | const newPath = path.join(servedPath, req.path !== '/' ? req.path : '');
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| 23 | res.redirect(newPath);
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| 24 | }
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| 25 | };
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| 26 | };
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