Kristaps Fabians Geikins
25 lines
780 B
TypeScript
25 lines
780 B
TypeScript
import type { Optional } from '@speckle/shared'
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import type express from 'express'
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import type http from 'http'
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export const getIpFromRequest = (req: express.Request | http.IncomingMessage) => {
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let ip: Optional<string> = undefined
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try {
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ip = (req.headers['cf-connecting-ip'] ||
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req.headers['true-client-ip'] ||
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req.headers['x-real-ip'] ||
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req.headers['x-forwarded-for'] ||
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req.headers['x-original-forwarded-for'] ||
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('ip' in req ? req.ip : undefined) ||
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req.connection.remoteAddress ||
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'') as string
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} catch {
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ip = ''
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}
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const ignorePrefixes = ['192.168.', '10.', '127.', '172.1', '172.2', '172.3', '::']
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for (const ipPrefix of ignorePrefixes)
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if (ip.startsWith(ipPrefix) || ip === '') return null
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return ip
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}
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