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27 lines
632 B
JavaScript
27 lines
632 B
JavaScript
import crypto from 'crypto'
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import Document, { Head, Main, NextScript } from 'next/document'
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const cspHashOf = (text) => {
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const hash = crypto.createHash('sha256')
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hash.update(text)
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return `'sha256-${hash.digest('base64')}'`
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}
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export default class extends Document {
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render () {
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const csp = `default-src 'self'; script-src 'self' ${cspHashOf(NextScript.getInlineScriptSource(this.props))}`
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return (
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<html>
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<Head>
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<meta httpEquiv='Content-Security-Policy' content={csp} />
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</Head>
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<body>
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<Main />
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<NextScript />
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</body>
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</html>
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)
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}
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}
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