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jason5ng32andClaude Opus 5.5
1dd10fbd2f
The layout refactor moved the two re-export bridges into utils/ip/ and utils/features/; their header and test comments still named the old paths. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
19 lines
902 B
JavaScript
19 lines
902 B
JavaScript
// The AS-number grammar shared by the ASN guards (server/guards.js) and the
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// tools that take a typed AS number (Whois, ASN Profile — via the
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// frontend/utils/ip/asn-input.js bridge): up to ten digits, AS1 …
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// AS4294967295, `AS` prefix case-insensitive.
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export const MAX_ASN = 4294967295;
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// → the ASN as a number (leading zeros dropped), or null. Surrounding spaces
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// are ignored; `requirePrefix` rejects a bare number (the Whois box, where
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// digits alone are not an AS query).
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export const parseAsnInput = (raw, { requirePrefix = false } = {}) => {
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if (typeof raw !== 'string' && typeof raw !== 'number') return null;
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const pattern = requirePrefix ? /^AS(\d+)$/i : /^(?:AS)?(\d+)$/i;
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const match = pattern.exec(String(raw).trim());
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if (!match || match[1].length > 10) return null;
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const asn = Number(match[1]);
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return asn >= 1 && asn <= MAX_ASN ? asn : null;
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};
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