Files
wr.do/middleware.ts
T

117 lines
3.0 KiB
TypeScript

import { NextResponse } from "next/server";
import { geolocation } from "@vercel/functions";
import { auth } from "auth";
import { NextAuthRequest } from "next-auth/lib";
import UAParser from "ua-parser-js";
import { siteConfig } from "./config/site";
export const config = {
matcher: ["/((?!api|_next/static|_next/image|favicon.ico).*)"],
};
const redirectMap = {
"Missing[0000]": "/docs/short-urls#missing-links",
"Expired[0001]": "/docs/short-urls#expired-links",
"Disabled[0002]": "/docs/short-urls#disabled-links",
"Error[0003]": "/docs/short-urls#error-links",
"PasswordRequired[0004]": "/password-prompt?error=0&slug=",
"IncorrectPassword[0005]": "/password-prompt?error=1&slug=",
};
// 提取短链接处理逻辑
async function handleShortUrl(req: NextAuthRequest) {
if (!req.url.includes("/s/")) return NextResponse.next();
const slug = extractSlug(req.url);
if (!slug)
return NextResponse.redirect(`${siteConfig.url}/docs/short-urls`, 302);
const geo = geolocation(req);
const headers = req.headers;
const { browser, device } = parseUserAgent(headers.get("user-agent") || "");
const url = new URL(req.url);
const password = url.searchParams.get("password") || "";
const trackingData = {
slug,
referer: headers.get("referer") || "(None)",
ip: headers.get("X-Forwarded-For"),
city: geo?.city,
region: geo?.region,
country: geo?.country,
latitude: geo?.latitude,
longitude: geo?.longitude,
flag: geo?.flag,
lang: headers.get("accept-language")?.split(",")[0],
device: device.model || "Unknown",
browser: browser.name || "Unknown",
password,
};
const res = await fetch(`${siteConfig.url}/api/s`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify(trackingData),
});
if (!res.ok)
return NextResponse.redirect(
`${siteConfig.url}${redirectMap["Error[0003]"]}`,
302,
);
const target = await res.json();
if (!target || typeof target !== "string") {
return NextResponse.redirect(
`${siteConfig.url}${redirectMap["Error[0003]"]}`,
302,
);
}
if (target in redirectMap) {
if (
["PasswordRequired[0004]", "IncorrectPassword[0005]"].includes(target)
) {
return NextResponse.redirect(
`${siteConfig.url}${redirectMap[target]}${slug}`,
302,
);
}
return NextResponse.redirect(
`${siteConfig.url}${redirectMap[target]}`,
302,
);
}
return NextResponse.redirect(target, 302);
}
// 提取 slug
function extractSlug(url: string): string | null {
const match = url.match(/([^/?]+)(?:\?.*)?$/);
return match ? match[1] : null;
}
// 解析用户代理
const parser = new UAParser();
function parseUserAgent(ua: string) {
parser.setUA(ua);
return {
browser: parser.getBrowser(),
device: parser.getDevice(),
};
}
export default auth(async (req) => {
try {
return await handleShortUrl(req);
} catch (error) {
console.error("Middleware error:", error);
return NextResponse.redirect(siteConfig.url, 302);
}
});