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index.js
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const express = require('express');
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const fileUpload = require('express-fileupload');
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const path = require('path');
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const { exec } = require('child_process');
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const fs = require('fs').promises;
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const rimraf = require('rimraf');
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const app = express();
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const PORT = process.env.PORT || 8000; // Use env var or default to 8000
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const UPLOAD_DIR = 'uploads';
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// Middleware to handle file uploads with a 500MB limit
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app.use(fileUpload({
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limits: { fileSize: 500 * 1024 * 1024 }, // 500MB limit
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abortOnLimit: true,
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}));
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app.use(express.static('public'));
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(async () => {
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if (!await fs.access(UPLOAD_DIR).then(() => true).catch(() => false)) {
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await fs.mkdir(UPLOAD_DIR);
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}
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})();
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app.get('/', (req, res) => {
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res.sendFile(path.join(__dirname, 'views', 'index.html'));
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});
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app.post('/process/debug', async (req, res) => {
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if (!req.files || !req.files.file || !req.files.file.name.endsWith('.apk')) {
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return res.status(400).json({ error: 'File must be an APK' });
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}
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const file = req.files.file;
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const sanitizedFileName = file.name.replace(/\s/g, '_');
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const filePath = path.join(UPLOAD_DIR, sanitizedFileName);
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try {
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await file.mv(filePath);
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const outputPath = await debugApk(filePath, UPLOAD_DIR);
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if (outputPath && await fs.access(outputPath).then(() => true).catch(() => false)) {
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res.download(outputPath, path.basename(outputPath), async (err) => {
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if (err) console.error(err);
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await cleanupFiles();
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});
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} else {
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await cleanupFiles();
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res.status(500).json({ error: 'Failed to debug APK' });
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}
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} catch (err) {
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await cleanupFiles();
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res.status(500).json({ error: 'Failed to process request' });
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}
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});
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function debugApk(inputPath, outputDir) {
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return new Promise((resolve) => {
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const command = `apk-mitm ${inputPath} -o ${outputDir}`;
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exec(command, (error, stdout) => {
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if (error) {
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console.error(`Error: ${error.message}`);
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return resolve(null);
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}
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const outputFileMatch = stdout.match(/Patched file: (.+)/);
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const outputFileName = outputFileMatch ? outputFileMatch[1].trim() : null;
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resolve(outputFileName ? path.join(outputDir, outputFileName) : null);
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});
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});
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}
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async function cleanupFiles() {
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return new Promise((resolve) => {
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rimraf(UPLOAD_DIR, () => resolve());
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});
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}
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app.listen(PORT, () => {
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console.log(`Server running on http://localhost:${PORT}`);
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});
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