Southwest Auto Checkin PoC

southwest.js

var rp = require("request-promise");
var fs = require("fs");
var db = JSON.parse(fs.readFileSync("db.json"));
var jar = rp.jar();

const CONFIG_EMAIL = "<insert email>";

checkIn({"confirmationNumber": "GGEZ69", "firstName": "Joe", "lastName": "Shmoe"});

function checkIn(user){
	user.submitButton = "Check In";

	var flightNumber;

	return rp({
		url: "https://www.southwest.com",
		jar: jar
	})
	.then(function(data){

		return rp({
			method: "post", 
			url: "https://www.southwest.com/flight/retrieveCheckinDoc.html", 
			form: user,
			jar: jar	
		});

	})
	.then(function(res){

		if(db[user.confirmationNumber] !== undefined){ //check if we have checked in already
			throw new Error("Already checked in!");
		}

		var failed = res.search("Boarding Pass is more than 24 hours prior") > -1 ? true : false;
		
		if(!failed){
			return rp({
				method: "post", 
				url: "https://www.southwest.com/flight/selectPrintDocument.html",
				form: {
					"checkinPassengers[0]selected": "true",
					"printDocuments": "Check In"
				},
				jar: jar
			})
		}

	})
	.then(function(res){

		return rp({
			method: "get", 
			url: "https://www.southwest.com/flight/selectCheckinDocDelivery.html?int=",
			jar: jar
		});

	})	
	.then(function(res){

		var regex = /<span class="number">(.*?)<\/span>/g;
		var result = regex.exec(res);

		if(result === null){
			throw new Error("Can't find a flight for confirmation number: " + user.confirmationNumber);
		}

		flightNumber = result[1];

		return rp({
			method: "post",
			followAllRedirects: true,
			url: "https://www.southwest.com/flight/selectCheckinDocDelivery.html",
			form: {
				selectedOption: "optionEmail",
				emailAddress: CONFIG_EMAIL
			},
			jar: jar
		})

	})
	.then(function(data){
		var status = data.search("Your Boarding Pass has been") > -1 ? true : false;
		if(status){
			console.log("Autocheckin for Flight# " + flightNumber + " was succesful");
			console.log("A bording pass email was sent to " + CONFIG_EMAIL);

			db[user.confirmationNumber] = true;

			fs.writeFileSync("db.json", JSON.stringify(db))
		}
		
	})
	.catch(function(err){
		console.log(err.message);
	})
}