first commit

.gitignore

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+node_modules/*
+package-lock.json

.vscode/launch.json

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+{
+    // 使用 IntelliSense 了解相关属性。 
+    // 悬停以查看现有属性的描述。
+    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "调试当前文件",
+            "program": "${file}"
+        }
+    ]
+}

Dockerfile

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+FROM registry.cn-shanghai.aliyuncs.com/devcon/node:18
+ADD . /app
+WORKDIR /app
+RUN mkdir /app/log
+RUN cd /app && \
+    chmod +x start.sh && \
+    npm config set registry https://registry.npmmirror.com/ && \
+    npm install
+EXPOSE 9000
+CMD [ "/app/start.sh" ]
+
+

app.js

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+const express = require("express");
+const request = require("request");
+const fs = require("fs");
+const app = express();
+const port = 9000;
+const { getDecryptionArray } = require("./decode");
+const { Transform } = require("stream");
+function xorTransform(decryptionArray) {
+  let processedBytes = 0;
+  return new Transform({
+    transform(chunk, encoding, callback) {
+      if (processedBytes < decryptionArray.length) {
+        let remaining = Math.min(
+          decryptionArray.length - processedBytes,
+          chunk.length
+        );
+        for (let i = 0; i < remaining; i++) {
+          chunk[i] = chunk[i] ^ decryptionArray[processedBytes + i];
+        }
+        processedBytes += remaining;
+      }
+      this.push(chunk);
+      callback();
+    },
+  });
+}
+
+app.get("/download", (req, res) => {
+  const { url, decodeKey } = req.query;
+  let xorStream = xorTransform(
+    getDecryptionArray(decodeURIComponent(decodeKey))
+  );
+  request(decodeURIComponent(url)).pipe(xorStream).pipe(res);
+});
+
+app.listen(port, () => {
+  console.log(`Example app listening at http://localhost:${port}`);
+});

package.json

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+{
+  "name": "origin",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "start": "node ./bin/www"
+  },
+  "dependencies": {
+    "cookie-parser": "~1.4.4",
+    "debug": "~2.6.9",
+    "express": "~4.16.1",
+    "stream": "^0.0.3",
+    "request": "^2.88.2"
+  }
+}

start.sh

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+cd /app
+while [ true ];do
+    nohup npm run start
+done