11 lines
508 B
TypeScript
11 lines
508 B
TypeScript
/** The administrator configures the external origin; forwarded headers are untrusted. */
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export function requestOrigin(request: Request, configured?: string): string {
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if (!configured) return new URL(request.url).origin;
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const url = new URL(configured);
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if (
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!['http:', 'https:'].includes(url.protocol) ||
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url.username || url.password || url.search || url.hash || url.pathname !== '/'
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) throw new Error('DUNE_PUBLIC_ORIGIN must be an HTTP(S) origin without a path.');
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return url.origin;
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}
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