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Make our Webpack config compatible with Node 18+

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Node 18 and newer switched to OpenSSL 3, which does not support the MD4
hash algorithm.

Unfortunately, Webpack 4 hardcodes the use of MD4 at various places.
This leaves us no other option than to monkey-patch node to transform
calls to the MD4 hash to use SHA256.

References:
https://github.com/webpack/webpack/issues/14532
https://stackoverflow.com/questions/69394632/webpack-build-failing-with-err-ossl-evp-unsupported/69691525#69691525
Signed-off-by: David Mehren <git@herrmehren.de>
This commit is contained in:
David Mehren 2023-05-28 20:29:51 +02:00 committed by Tilman Vatteroth
parent b1928b77b4
commit 6a916d060a
2 changed files with 8 additions and 1 deletions
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2
package.json
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@ -107,7 +107,7 @@
"xss": "^1.0.3"
},
"engines": {
"node": "16.x"
"node": ">=16"
},
"bugs": "https://github.com/hedgedoc/hedgedoc/issues",
"keywords": [

7
webpack.common.js
View file

@ -5,6 +5,13 @@ const CopyWebpackPlugin = require('copy-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const { CleanWebpackPlugin } = require('clean-webpack-plugin')
// This monkey-patches node to use sha256 instead of md4 for crypto.createHash
// md4 is not available in node 18+ anymore, as that uses modern OpenSSL versions
// Inspired by https://stackoverflow.com/questions/69394632/webpack-build-failing-with-err-ossl-evp-unsupported/69691525#69691525
const crypto = require('crypto')
const cryptoOrigCreateHash = crypto.createHash
crypto.createHash = algorithm => cryptoOrigCreateHash(algorithm === 'md4' ? 'sha256' : algorithm)
// Fix possible nofile-issues
const fs = require('fs')
const gracefulFs = require('graceful-fs')