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282 lines
11 KiB
CoffeeScript
282 lines
11 KiB
CoffeeScript
async = require 'async'
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config = require '../../server_config'
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stripe = require('stripe')(config.stripe.secretKey)
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User = require '../models/User'
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Payment = require '../models/Payment'
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errors = require '../commons/errors'
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mongoose = require 'mongoose'
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utils = require '../../app/core/utils'
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module.exports.setup = (app) ->
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# Cache customer -> user ID map (increases test perf considerably)
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customerUserMap = {}
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logStripeWebhookError = (msg) ->
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console.warn "Stripe Webhook Error: #{msg}"
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app.post '/stripe/webhook', (req, res) ->
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# Subscription renewal events:
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# https://support.stripe.com/questions/what-events-can-i-see-when-a-subscription-is-renewed
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if req.body.type is 'invoice.payment_succeeded'
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return handlePaymentSucceeded req, res
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else if req.body.type is 'customer.subscription.deleted'
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return handleSubscriptionDeleted req, res
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else # ignore all other notifications
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return res.send(200, '')
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app.get '/stripe/coupons', (req, res) ->
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return errors.forbidden(res) unless req.user?.isAdmin()
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stripe.coupons.list {limit: 100}, (err, coupons) ->
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return errors.serverError(res) if err
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res.send(200, coupons.data)
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return res.end()
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handlePaymentSucceeded = (req, res) ->
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# if they actually paid, give em some gems
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getUserID = (customerID, done) =>
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# Asumming Stripe customer never has a different userID
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return done(null, customerUserMap[customerID]) if customerID of customerUserMap
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stripe.customers.retrieve customerID, (err, customer) =>
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return done(err) if err
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customerUserMap[customerID] = customer.metadata.id
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return done(null, customerUserMap[customerID])
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invoiceID = req.body.data.object.id
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stripe.invoices.retrieve invoiceID, (err, invoice) =>
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if err
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logStripeWebhookError("Retrieve invoice error: #{JSON.stringify(err)}")
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return res.send(500, '')
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unless invoice.total or invoice.discount?.coupon?.id in ['free', 'brazil']
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# invoices made when trialing, probably given for people who resubscribe after unsubscribing
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# also I can't change the test-mode brazil coupon to not end up with a zero price now
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return res.send(200, '')
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return res.send(200, '') unless invoice.lines?.data?.length > 0
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getUserID invoice.customer, (err, userID) =>
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if err
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logStripeWebhookError("Get user ID error: #{JSON.stringify(err)}")
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return res.send(500, '')
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# User is recipient if no metadata.id
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recipientID = invoice.lines.data[0].metadata?.id or userID
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# Subscription id location depends on invoice line_item type
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subscriptionID = invoice.lines.data[0].subscription or invoice.lines.data[0].id
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User.findById recipientID, (err, recipient) =>
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if err
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logStripeWebhookError("Find recipient user error: #{JSON.stringify(err)}")
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return res.send(500, '')
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return res.send(200) unless recipient # just for the sake of testing...
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Payment.findOne {'stripe.invoiceID': invoiceID}, (err, payment) =>
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return res.send(200, '') if payment
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payment = new Payment({
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'purchaser': mongoose.Types.ObjectId(userID)
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'recipient': recipient._id
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'created': new Date().toISOString()
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'service': 'stripe'
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'amount': invoice.total
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'stripe': {
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customerID: invoice.customer
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invoiceID: invoice.id
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subscriptionID: subscriptionID
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}
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})
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# TODO: load gems from correct Product
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productGems = 3500
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if recipient.get('country') is 'brazil'
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productGems = 1500
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payment.set 'gems', productGems if invoice.lines.data[0].plan?.id is 'basic'
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payment.save (err) =>
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if err
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logStripeWebhookError("Save payment error: #{JSON.stringify(err)}")
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return res.send(500, '')
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return res.send(201, '') if invoice.lines.data[0].plan?.id isnt 'basic'
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# Update purchased gems
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# TODO: is this correct for a resub?
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Payment.find({recipient: recipient._id, gems: {$exists: true}}).select('gems').exec (err, payments) ->
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gems = _.reduce payments, ((sum, p) -> sum + p.get('gems')), 0
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purchased = _.clone(recipient.get('purchased'))
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purchased ?= {}
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purchased.gems = gems
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recipient.set('purchased', purchased)
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recipient.save (err) ->
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if err
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logStripeWebhookError("Save recipient user error: #{JSON.stringify(err)}")
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return res.send(500, '')
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return res.send(201, '')
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handleSubscriptionDeleted = (req, res) ->
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# Three variants:
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# normal - Personal subscription deleted
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# recipeint - Subscription sponsored by another user is being deleted.
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# sponsor - Aggregate subscription used to pay for multiple recipient subscriptions. Ugh.
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subscription = req.body.data.object
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checkUserExists = (done) ->
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stripe.customers.retrieve subscription.customer, (err, customer) =>
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if err
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logStripeWebhookError("Failed to retrieve #{subscription.customer}")
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return res.send(500, '')
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unless customer?.metadata?.id
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logStripeWebhookError("Customer with no metadata.id #{subscription.customer}")
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return res.send(500, '')
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User.findById customer.metadata.id, (err, user) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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unless user
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logStripeWebhookError("User not found #{customer.metadata.id}")
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return res.send(500, '')
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return res.send(200, '') if user.get('deleted') is true
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done()
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checkNormalSubscription = (done) ->
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User.findOne {'stripe.subscriptionID': subscription.id}, (err, user) ->
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return done() unless user
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stripeInfo = _.cloneDeep(user.get('stripe') ? {})
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delete stripeInfo.planID
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delete stripeInfo.prepaidCode
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delete stripeInfo.subscriptionID
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user.set('stripe', stripeInfo)
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user.save (err) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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return res.send(200, '')
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checkRecipientSubscription = (done) ->
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return done() unless subscription.plan.id is 'basic'
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return done() unless subscription.metadata?.id # Shouldn't be possible
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deleteUserStripeProp = (user, propName) ->
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stripeInfo = _.cloneDeep(user.get('stripe') ? {})
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delete stripeInfo[propName]
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if _.isEmpty stripeInfo
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user.set 'stripe', undefined
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else
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user.set 'stripe', stripeInfo
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User.findById subscription.metadata.id, (err, recipient) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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unless recipient
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logStripeWebhookError("Recipient not found #{subscription.metadata.id}")
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return res.send(500, '')
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# Recipient cancellations are immediate, no work to perform if recipient's sponsorID is already gone
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return res.send(200, '') unless recipient.get('stripe')?.sponsorID?
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User.findById recipient.get('stripe').sponsorID, (err, sponsor) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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unless sponsor
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logStripeWebhookError("Sponsor not found #{recipient.get('stripe').sponsorID}")
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return res.send(500, '')
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# Update sponsor subscription
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stripeInfo = _.cloneDeep(sponsor.get('stripe') ? {})
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stripeInfo.recipients ?= []
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if stripeInfo.sponsorSubscriptionID
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_.remove(stripeInfo.recipients, (s) -> s.userID is recipient.id)
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options =
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quantity: utils.getSponsoredSubsAmount(subscription.plan.amount, stripeInfo.recipients.length, stripeInfo.subscriptionID?)
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stripe.customers.updateSubscription stripeInfo.customerID, stripeInfo.sponsorSubscriptionID, options, (err, subscription) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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# Update sponsor user
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sponsor.set 'stripe', stripeInfo
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sponsor.save (err) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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# Update recipient user
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deleteUserStripeProp recipient, 'sponsorID'
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recipient.save (err) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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return res.send(200, '')
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else
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# Remove sponsorships from sponsor and recipients
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console.error "Couldn't find sponsorSubscriptionID from stripeInfo", stripeInfo, 'for customer', stripeInfo.customerID, 'with options', options, 'and subscription', subscription, 'for user', recipient.id, 'with sponsor', sponsor.id
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# Update recipients
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createUpdateFn = (recipientID) ->
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(callback) ->
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User.findById recipientID, (err, recipient) =>
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if err
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logStripeWebhookError(err)
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return callback(err)
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deleteUserStripeProp recipient, 'sponsorID'
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recipient.save (err) =>
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logStripeWebhookError(err) if err
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callback(err)
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async.parallel (createUpdateFn(recipient.userID) for recipient in stripeInfo.recipients), (err, results) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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# Update sponsor
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deleteUserStripeProp sponsor, 'recipients'
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sponsor.save (err) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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return res.send(200, '')
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checkSponsorSubscription = (done) ->
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return done() unless subscription.plan.id is 'incremental'
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customerID = subscription.customer
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createUpdateFn = (sub) ->
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(callback) ->
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# Cancel Stripe recipient subscription
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stripe.customers.cancelSubscription customerID, sub.subscriptionID, { at_period_end: true }, (err) ->
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callback err
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User.findById subscription.metadata.id, (err, sponsor) =>
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return res.send(500, '') if err
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stripeInfo = _.cloneDeep(sponsor.get('stripe') ? {})
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# Cancel all recipient subscriptions
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async.parallel (createUpdateFn(sub) for sub in stripeInfo.recipients), (err, results) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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# Update sponsor user
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delete stripeInfo.sponsorSubscriptionID
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delete stripeInfo.recipients # Loses remaining credit on a re-subscribe for previous user
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if _.isEmpty stripeInfo
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sponsor.set 'stripe', undefined
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else
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sponsor.set 'stripe', stripeInfo
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sponsor.save (err) =>
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if err
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logStripeWebhookError(err)
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return res.send(500, '')
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done()
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# TODO: use async.series for this
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checkUserExists ->
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checkNormalSubscription ->
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checkRecipientSubscription ->
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checkSponsorSubscription ->
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res.send(200, '')
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