From 00027047535987febf44b53ddcf875309cfb5620 Mon Sep 17 00:00:00 2001
From: Leko <leko@leko.moe>
Date: Sun, 15 Jan 2023 21:20:52 +0800
Subject: [PATCH] feat: do not proxy netease2 images

---
 dataModule.js          | 16 +++++++++++++++-
 dataModule/netease2.js | 27 +++++++++------------------
 2 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/dataModule.js b/dataModule.js
index 5daa881..f6aaa1c 100644
--- a/dataModule.js
+++ b/dataModule.js
@@ -435,7 +435,21 @@ router.get("/req/", async (req, res) => {
     //http://localhost:3000/pokaapi/req/?moduleName=Netease2&data=http%3A%2F%2Fp3.music.126.net%2FJB1yLZyVMPsbbSlSkfJdRw%3D%3D%2F6630055116648156.jpg
     // -> Image
     let cover = await _module.req(req.query.data);
-    return cover ? cover.pipe(res) : false;
+    if (!cover) return res.sendStatus(404);
+
+    if (typeof cover == "string" && cover.startsWith("http")) return res.redirect(cover);
+
+    if (cover.pipe) {
+        res.header("Cache-Control", "max-age=7200") //快取 2hr
+        return cover.pipe(res);
+    }
+
+    if (cover instanceof Buffer) {
+        res.header("Cache-Control", "max-age=7200") //快取 2hr
+        return res.send(cover);
+    }
+
+    return res.sendStatus(500);
 });
 //-----------------------------> 歌詞
 // 搜尋歌詞
diff --git a/dataModule/netease2.js b/dataModule/netease2.js
index bb0317b..590df90 100644
--- a/dataModule/netease2.js
+++ b/dataModule/netease2.js
@@ -237,30 +237,21 @@ async function onLoaded() {
     }
 }
 
+function genReq(link) {
+    return Buffer.from(link).toString("base64")
+}
+function deReq(x) {
+    return Buffer.from(x, "base64").toString("utf8");
+}
 async function req(x) {
-    function deReq(x) {
-        const b2a = x => Buffer.from(x, "base64").toString("utf8");
-        const decode = x => /(.{5})(.+)3C4C7CB3(.+)/.exec(x);
-
-        let [_, rand, link, checkSum] = decode(x);
-        [_, rand, link, checkSum] = [_, rand, b2a(link), b2a(checkSum)];
-        if (!Number.isInteger(Math.log10(rand.charCodeAt(0) + checkSum.charCodeAt(0)))) {
-            return false;
-        }
-        return link;
-    }
     let link = deReq(x);
     if (!link) return false;
+
     const re = /^(http|https)\:\/\/p(\d+)\.music\.126\.net\/(?:.+)/;
     if (!re.test(link)) return false;
-    else return client(await normalOptions(link));
-}
 
-function genReq(link) {
-    const a2b = x => Buffer.from(x).toString("base64");
-    const rand = Math.random().toString(36).substring(2, 7)
-    const checkSum = N => 10 ** Number(N).toString().length - N;
-    return `${rand}${a2b(link)}3C4C7CB3${a2b(String.fromCharCode(checkSum(rand.charCodeAt(0))))}`;
+    // return client(await normalOptions(link));
+    return link;
 }
 
 async function parseSongs(songs, br = 999000) {