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common: Move Anti-GFW module

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LittleChest 2025-07-26 15:22:40 +08:00
parent 31de466c22
commit 2e9672aca6
1 changed files with 21 additions and 24 deletions
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45
common.js
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@ -12,28 +12,6 @@ export default async function handler(
headers.get("x-forwarded-for").split(",")[0].trim() || headers.get("x-forwarded-for").split(",")[0].trim() ||
headers.get("x-real-ip"); headers.get("x-real-ip");
const bodyHex = Array.from(new Uint8Array(await request.arrayBuffer()))
.map((b) => b.toString(16).padStart(2, "0"))
.join("");
// Anti-GFW
if (
isIPv4(ip) &&
method === "POST" &&
pathname === "/dns-query" &&
headers.get("content-type") === "application/dns-message" &&
headers.get("accept") === "application/dns-message" &&
headers.get("content-length") === "29" &&
(headers.get("user-agent") === "Go-http-client/1.1" ||
headers.get("user-agent") === "Go-http-client/2.0") &&
(headers.get("accept-encoding") === "gzip, br" ||
headers.get("accept-encoding") === "gzip") &&
bodyHex.slice(4) ===
"01100001000000000000077477697474657203636f6d0000010001"
) {
return new Response(null, { status: 403 });
}
let res = new Response(null, { status: 404 }); let res = new Response(null, { status: 404 });
// JSON API // JSON API
@ -71,8 +49,27 @@ export default async function handler(
method === "POST" && method === "POST" &&
headers.get("content-type") === "application/dns-message" headers.get("content-type") === "application/dns-message"
) { ) {
const originalQuery = await request.arrayBuffer(); const requestBody = await request.arrayBuffer();
queryData = new Uint8Array(originalQuery);
const bodyHex = Array.from(new Uint8Array(requestBody))
.map((b) => b.toString(16).padStart(2, "0"))
.join("");
// Anti-GFW
if (
isIPv4(ip) &&
headers.get("accept") === "application/dns-message" &&
headers.get("content-length") === "29" &&
(headers.get("user-agent") === "Go-http-client/1.1" ||
headers.get("user-agent") === "Go-http-client/2.0") &&
(headers.get("accept-encoding") === "gzip, br" ||
headers.get("accept-encoding") === "gzip") &&
bodyHex.slice(4) ===
"01100001000000000000077477697474657203636f6d0000010001"
) {
return new Response(null, { status: 403 });
}
queryData = new Uint8Array(requestBody);
} }
if (queryData !== undefined) { if (queryData !== undefined) {