16 lines
408 B
TypeScript
16 lines
408 B
TypeScript
export function getClientIp(req: any): string {
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let ip =
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req.ip ||
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(Array.isArray(req.headers['x-forwarded-for'])
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? req.headers['x-forwarded-for'][0]
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: req.headers['x-forwarded-for']) ||
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req.socket.remoteAddress;
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// 如果是 IPv4-mapped IPv6 地址，转换为 IPv4
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if (typeof ip === 'string' && ip.startsWith('::ffff:')) {
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ip = ip.substring(7);
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}
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return ip || '';
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}
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