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import { exec } from 'child_process'; |
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import { promisify } from 'util'; |
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import cors from 'cors' |
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import express from 'express' |
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import { config } from 'dotenv' |
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config() |
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import path from 'path'; |
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import { fileURLToPath } from 'url'; |
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const __filename = fileURLToPath(import.meta.url); |
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const __dirname = path.dirname(__filename); |
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const execPromise = promisify(exec); |
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async function executeCommand(command) { |
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try { |
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const { stdout, stderr } = await execPromise(command); |
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if (stderr) { |
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throw new Error(`Stderr: ${stderr}`); |
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} |
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return stdout; |
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} catch (error) { |
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throw new Error(`Error executing command: ${error.message}`); |
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} |
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} |
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function checkIfGenerated(output) { |
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const logs = output.trim().split('\n'); |
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const lastLog = logs[logs.length - 1]; |
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if (lastLog.includes('Generated: ')) { |
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return { result: true, path: lastLog.split(" output/")[1] } |
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} else { |
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return { result: false, path: "" } |
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} |
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} |
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async function main(url) { |
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return new Promise(async (resolve, reject) => { |
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try { |
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const command = `npm start '${url}'`; |
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const output = await executeCommand(command); |
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resolve(checkIfGenerated(output)); |
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} catch (error) { |
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if (error.toString().includes("Unsupported UR")) { |
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reject({ error: "Not supported URL" }) |
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} else { |
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reject({ error: error }) |
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} |
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} |
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}) |
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} |
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const app = express() |
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app.use(cors()) |
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app.get("/", (req, res) => { |
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res.send("/down?url=<scribd>") |
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}) |
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app.all("/down", async (req, res) => { |
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const browserStartAttempts = 5; |
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let a; |
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for (let i = 0; i < browserStartAttempts; i++) { |
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try { |
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const { url } = req.query; |
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if (!url) return res.json({ error: "invalid url/nourl" }) |
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return res.json(await main(url)) |
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} catch (e) { |
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a = e |
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console.log(e) |
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} |
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} |
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return res.json({error: e}) |
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}) |
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app.use(express.static(path.join(__dirname, 'output'))); |
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const port = process.env.SERVER_PORT || 7860 |
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app.listen(port, () => { |
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console.log("listening on port: " + port) |
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}) |
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