oiov
55 lines
1.3 KiB
TypeScript
55 lines
1.3 KiB
TypeScript
interface GeoData {
|
|
ip: string;
|
|
ipVersion?: string;
|
|
country: string;
|
|
city: string;
|
|
region: string;
|
|
timezone?: string;
|
|
isp?: string;
|
|
asn?: number;
|
|
latitude: string;
|
|
longitude: string;
|
|
}
|
|
|
|
export async function getClientGeolocation(): Promise<GeoData | null> {
|
|
const response = await fetch("https://ip.wr.do/api", {
|
|
signal: AbortSignal.timeout(3000),
|
|
});
|
|
if (!response.ok) return null;
|
|
return await response.json();
|
|
}
|
|
|
|
export function extractRealIP(headers: Headers): string {
|
|
// 按优先级检查不同的IP头
|
|
const ipHeaders = [
|
|
"X-Forwarded-For",
|
|
"X-Real-IP",
|
|
"CF-Connecting-IP",
|
|
"X-Client-IP",
|
|
"X-Cluster-Client-IP",
|
|
];
|
|
|
|
for (const header of ipHeaders) {
|
|
const value = headers.get(header);
|
|
if (value) {
|
|
// X-Forwarded-For 可能包含多个IP，取第一个
|
|
const ip = value.split(",")[0].trim();
|
|
if (isValidIP(ip)) {
|
|
return ip;
|
|
}
|
|
}
|
|
}
|
|
|
|
return "::1";
|
|
}
|
|
|
|
function isValidIP(ip: string): boolean {
|
|
// IPv4 正则
|
|
const ipv4Regex =
|
|
/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
|
|
// IPv6 正则（简化版）
|
|
const ipv6Regex = /^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$/;
|
|
|
|
return ipv4Regex.test(ip) || ipv6Regex.test(ip);
|
|
}
|