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upgrade.js
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upgrade.js
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'use strict';
var undefsafe = require('undefsafe');
var config = require('../config');
var stripeKey = undefsafe(config, 'payment.stripe.public');
var models = require('../models');
var metrics = require('./metrics');
var customer = models.customer;
var vatValidator = require('validate-vat');
var featureList = require('../data/features.json');
var backersList = require('../data/backers.json');
var Promise = require('promise'); // jshint ignore:line
var util = require('util');
var stripe;
var debug = config.environment !== 'production';
if (stripeKey) {
stripe = require('stripe')(undefsafe(config, 'payment.stripe.secret'));
}
// this is a compatibility layer for our handler index.js magic
var upgrade = module.exports = {
name: 'upgrade'
};
upgrade.features = function (req, res, next) {
if (!stripeKey) {
return next('route');
}
var app = req.app;
var stripeProMonthURL = undefsafe(config, 'payment.stripe.urls.month');
res.render('upgrade', {
layout: 'sub/layout',
root: app.locals.url('', true, req.secure),
static: app.locals.urlForStatic('', req.secure),
referrer: req.get('referer'),
featureList: featureList,
backersList: backersList,
cachebust: app.set('is_production') ? '?' + req.app.set('version') : '',
stripeKey: stripeKey,
stripeProMonthURL: stripeProMonthURL,
showCoupon: req.query.coupon === 'true'
});
};
upgrade.payment = function (req, res, next) {
if (!stripeKey) {
return next('route');
}
if (!req.body) {
metrics.increment('upgrade.view');
} else {
metrics.increment('upgrade.try-again');
}
var app = req.app;
var user = undefsafe(req, 'session.user') || {};
var info = req.flash(req.flash.INFO);
var error = req.flash(req.flash.ERROR);
var notification = req.flash(req.flash.NOTIFICATION);
var flash = error || notification || info;
res.render('payment', {
flash: flash,
request: req,
layout: 'sub/layout',
root: app.locals.url('', true, req.secure),
static: app.locals.urlForStatic('', req.secure),
referrer: req.get('referer'),
csrf: req.session._csrf,
values: {
email: req.body.email || user.email,
vat: req.body.vat,
country: req.body.country,
subscription: req.body.subscription,
number: req.body.number,
expiry: req.body.expiry,
cvc: req.body.cvc,
buyer_type: req.body.buyer_type, // jshint ignore:line
},
stripe: {
key: stripeKey,
},
cachebust: app.set('is_production') ? '?' + req.app.set('version') : '',
showCoupon: req.query.coupon === 'true', // TODO!
});
};
upgrade.processPayment = function (req, res, next) {
if (!stripeKey) {
return next('route');
}
var plans = undefsafe(config, 'payment.stripe.plans');
if (!plans) {
return next(412, 'Missing stripe plans'); // 412: precondition failed
}
var metadata = {
type: req.body.buyer_type, // jshint ignore:line
country: req.body.country,
vat: req.body.vat
};
// Get the credit card details submitted by the form
var stripSubscriptionData = {
email: req.body.email,
card: req.body.stripeToken,
metadata: metadata,
};
if (req.body.coupon) {
stripSubscriptionData.coupon = req.body.coupon;
}
function getPlan(customer) {
var yearly = req.body.subscription === 'yearly';
var card = customer.cards.default_card; // jshint ignore:line
var planOptions = yearly ? plans.yearly : plans.monthly;
var EU = ['AT', 'BE', 'BG', 'CY', 'CZ', 'DE', 'DK', 'EE', 'EL', 'ES', 'FI', 'FR', 'HR', 'HU', 'IE', 'IT', 'LT', 'LU', 'LV', 'MT', 'NL', 'PL', 'PT', 'RO', 'SE', 'SI', 'SK']; //
var country = customer.cards.data.reduce(function (last, current, array) {
if (current.id === card) {
return current.country;
} else {
return last;
}
}, null);
var p = planOptions.simple;
// if country === UK - add VAT
if (country) {
if (country === 'GB') {
p = planOptions.vat;
} else if (EU.indexOf(country) !== -1) {
if (!req.vatValid) {
p = planOptions.vat;
}
}
}
return p;
}
// PROMISE ALL THE THINGS! \o/
var getCustomerByUser = Promise.denodeify(customer.getCustomerByUser).bind(customer);
var setCustomer = Promise.denodeify(customer.setCustomer).bind(customer);
var setProAccount = Promise.denodeify(models.user.setProAccount).bind(models.user);
new Promise(function (resolve) {
if (req.body.vat) {
// check country against the country against the card - it should match
// if it fails, we swallow and respond
var country = (req.body.country || '').toUpperCase();
var vat = (req.body.vat||'').replace(/\s/g, '');
vatValidator(country, vat, function (error, result) {
// IMPORTANT: this is where we are swallowing the promise, and not carrying on
if (error || result.valid === false) {
metrics.increment('upgrade.fail.vat');
req.flash(req.flash.ERROR, 'VAT did not appear to be valid, can you try again or follow up with <a href="mailto:support@jsbin.com?subject=Failed VAT">support</a>.');
return upgrade.payment(req, res, next);
}
req.vatValid = true;
resolve();
});
} else {
// passthrough
resolve();
}
}).then(function () {
// 1. create (or get) customer
// 2. update customer with card and details
// 3. subscribe to plan (and adjust their VAT based on the country of the card)
/** 1. get a stripe customer id */
if (debug) {console.log('getCustomerByUser');}
return getCustomerByUser(req.session.user).then(function (result) {
if (debug) {console.log('.then, stripe.customers.retrieve(' + result.stripe_id + ')');} // jshint ignore:line
return stripe.customers.retrieve(result.stripe_id).then(function (stripeCustomer) { // jshint ignore:line
if (debug) {console.log('.then, subscribe');}
// change their subscription
// FIXME this *assumes* that the customer is subscribed to a plan...
if (stripeCustomer.subscriptions && stripeCustomer.subscriptions.data.length) {
return stripe.customers.updateSubscription(stripeCustomer.id, stripeCustomer.subscriptions.data[0].id, { plan: getPlan(stripeCustomer) });
} else {
return stripe.customers.createSubscription(stripeCustomer.id, { plan: getPlan(stripeCustomer) });
}
}).catch(function () {
// failed to subscribe existing user to stripe
metrics.increment('upgrade.fail.existing-user-change-subscription');
});
}).catch(function () {
if (debug) {console.log('.catch, stripe.customers.create(' + JSON.stringify(stripSubscriptionData) + ')');}
// create the customer with Stripe since they don't exist
return stripe.customers.create(stripSubscriptionData).then(function (stripeCustomer) {
if (debug) {console.log('.then, stripe.customers.createSubscription(' + stripeCustomer.id + ', { plan: ' + getPlan(stripeCustomer) + ' })');}
return stripe.customers.createSubscription(stripeCustomer.id, { plan: getPlan(stripeCustomer) }).then(function () {
if (debug) {console.log('.then, setCustomer');}
return setCustomer({
stripeId: stripeCustomer.id,
user: req.session.user.name,
plan: getPlan(stripeCustomer)
});
});
});
}).then(function (data) {
if (debug) {
console.log('.then, setProAccount(' + req.session.user.name + ', true)');
console.log(util.inspect(data, { depth: 50 }));
console.log('stripe all done - now setting user to pro!');
}
return setProAccount(req.session.user.name, true);
}).then(function () {
metrics.increment('upgrade.success');
req.session.user.pro = true;
req.flash(req.flash.NOTIFICATION, 'Welcome to the pro user lounge. Your seat is waiting');
res.redirect('/');
}).catch(function (error) {
// there was something wrong with the customer create process, so let's
// send them back to the payment page with a flash message
var message = 'Unknown error in the upgrade process. Please try again or contact support';
if (error && error.message) {
message = error.message;
} else if (error) {
message = error.toString();
}
if (error.type) {
metrics.increment('upgrade.fail.' + error.type);
} else {
metrics.increment('upgrade.fail.transaction-misc');
}
req.flash(req.flash.ERROR, message);
upgrade.payment(req, res, next);
});
}).catch(function (error) {
// this is likely to be an exception in our code. ![Dangit](http://i.imgur.com/Cj57XRN.gif)
console.error('uncaught exception in upgrade', error);
metrics.increment('upgrade.fail.exception-in-code');
var message = 'Unknown error in the upgrade process. Please try again or contact support';
if (error && error.message) {
message = error.message;
} else if (error) {
message = error.toString();
}
req.flash(req.flash.ERROR, 'Exception in upgrade process: ' + message);
upgrade.payment(req, res, next);
});
};