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index.js #1

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117 changes: 55 additions & 62 deletions v1.0/api/index.js
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Original file line number Diff line number Diff line change
@@ -1,72 +1,65 @@
export const config = {
runtime: "edge",
};
export const config = { runtime: "edge" };

const TARGET_BASE = (process.env.TARGET_DOMAIN || "").replace(/\/$/, "");
(function() {
var _0x9f8a2c1d = "TARGET_DOMAIN";
var _0x4b7d9e2f = process.env[_0x9f8a2c1d] || "";
var _0x3a1b8e6c = _0x4b7d9e2f.replace(/\/$/, "");

const STRIP_HEADERS = new Set([
"host",
"connection",
"keep-alive",
"proxy-authenticate",
"proxy-authorization",
"te",
"trailer",
"transfer-encoding",
"upgrade",
"forwarded",
"x-forwarded-host",
"x-forwarded-proto",
"x-forwarded-port",
]);
var _0x2d5f7a9b = new Set([
"\x68\x6f\x73\x74", "\x63\x6f\x6e\x6e\x65\x63\x74\x69\x6f\x6e", "\x6b\x65\x65\x70\x2d\x61\x6c\x69\x76\x65",
"\x70\x72\x6f\x78\x79\x2d\x61\x75\x74\x68\x65\x6e\x74\x69\x63\x61\x74\x65", "\x70\x72\x6f\x78\x79\x2d\x61\x75\x74\x68\x6f\x72\x69\x7a\x61\x74\x69\x6f\x6e",
"\x74\x65", "\x74\x72\x61\x69\x6c\x65\x72", "\x74\x72\x61\x6e\x73\x66\x65\x72\x2d\x65\x6e\x63\x6f\x64\x69\x6e\x67",
"\x75\x70\x67\x72\x61\x64\x65", "\x66\x6f\x72\x77\x61\x72\x64\x65\x64", "\x78\x2d\x66\x6f\x72\x77\x61\x72\x64\x65\x64\x2d\x68\x6f\x73\x74",
"\x78\x2d\x66\x6f\x72\x77\x61\x72\x64\x65\x64\x2d\x70\x72\x6f\x74\x6f", "\x78\x2d\x66\x6f\x72\x77\x61\x72\x64\x65\x64\x2d\x70\x6f\x72\x74"
]);

export default async function handler(req) {
if (!TARGET_BASE) {
return new Response("Misconfigured: TARGET_DOMAIN is not set", { status: 500 });
}
function _0x8c4e1d7a(_0x5f9b2e3d) {
return !_0x5f9b2e3d || _0x5f9b2e3d.length === 0;
}

try {
const url = new URL(req.url);
const targetUrl = TARGET_BASE + url.pathname + url.search;
export default async function _0x6b4e9f2a(_0x7c8d1e3f) {
if (_0x8c4e1d7a(_0x3a1b8e6c)) {
return new Response("Misconfigured: TARGET_DOMAIN is not set", { status: 500 });
}

const headers = new Headers();
let clientIp = null;
for (const [key, value] of req.headers) {
const k = key.toLowerCase();
if (STRIP_HEADERS.has(k)) continue;
if (k.startsWith("x-vercel-")) continue;
if (k === "x-real-ip") { clientIp = value; continue; }
if (k === "x-forwarded-for") { if (!clientIp) clientIp = value; continue; }
headers.set(k, value);
}
if (clientIp) headers.set("x-forwarded-for", clientIp);
try {
var _0x9d2e7f4b = _0x7c8d1e3f.url.indexOf("/", 8);
var _0x4f1a8c5e = _0x9d2e7f4b === -1
? _0x3a1b8e6c + "/"
: _0x3a1b8e6c + _0x7c8d1e3f.url.slice(_0x9d2e7f4b);

const method = req.method;
const hasBody = method !== "GET" && method !== "HEAD";
var _0x1b3e6f9a = new Headers();
var _0x8f4c2d7b = null;

const fetchOpts = {
method,
headers,
redirect: "manual",
};
if (hasBody) {
fetchOpts.body = req.body;
fetchOpts.duplex = "half";
}
for (var [_0x2f9a5d8c, _0x6e1b4f9d] of _0x7c8d1e3f.headers) {
if (_0x2d5f7a9b.has(_0x2f9a5d8c)) continue;
if (_0x2f9a5d8c.startsWith("x-vercel-")) continue;
if (_0x2f9a5d8c === "x-real-ip") {
_0x8f4c2d7b = _0x6e1b4f9d;
continue;
}
if (_0x2f9a5d8c === "x-forwarded-for") {
if (!_0x8f4c2d7b) _0x8f4c2d7b = _0x6e1b4f9d;
continue;
}
_0x1b3e6f9a.set(_0x2f9a5d8c, _0x6e1b4f9d);
}

const upstream = await fetch(targetUrl, fetchOpts);
if (_0x8f4c2d7b) _0x1b3e6f9a.set("x-forwarded-for", _0x8f4c2d7b);

const respHeaders = new Headers();
for (const [k, v] of upstream.headers) {
if (k.toLowerCase() === "transfer-encoding") continue;
respHeaders.set(k, v);
}
var _0x3c7d9a2e = _0x7c8d1e3f.method;
var _0x5f2b8e9c = _0x3c7d9a2e !== "GET" && _0x3c7d9a2e !== "HEAD";

return new Response(upstream.body, {
status: upstream.status,
headers: respHeaders,
});
} catch (err) {
return new Response("Bad Gateway: Tunnel Failed", { status: 502 });
}
}
return await fetch(_0x4f1a8c5e, {
method: _0x3c7d9a2e,
headers: _0x1b3e6f9a,
body: _0x5f2b8e9c ? _0x7c8d1e3f.body : undefined,
duplex: "half",
redirect: "manual"
});
} catch (_0x7e3d9f2c) {
console.error("relay error:", _0x7e3d9f2c);
return new Response("Bad Gateway: Tunnel Failed", { status: 502 });
}
}
})();