Description: nodejs run specified file with specified interpretator(http://localhost:8000/run?cmd=[python/ruby]&file=[filepath])

run.js

var express = require('express');
var app = express();

function execute(inter, file, callback) {
    var spawn = require('child_process').spawn;
    var command;// = spawn('/usr/bin/python', [ file ]);
    switch(inter) {
        case "python":
        command = spawn("/usr/bin/python", [ file ]);
        break;

        case "ruby":
        command = spawn("/usr/bin/ruby", [ file ]);
        break;

        default:
        return callback("<b>Error! Undefined interpretator!</b>");
    }
    var result = '';
    console.log(file);
    command.stdout.on('data', function(data) {
        console.log(data);
        result += data.toString();
    });
    command.on('close', function(code) {
        return callback(result);
    });
}

app.get("/run", function(req, res) {
	execute(req.query.cmd, req.query.file, function(result) {
		res.send(result);
	});
});

app.listen(8000);