crimata-website/app/controllers/checkout_controller.rb
Andrew Gundersen a1175ab00d Add passwordless email auth with pre-checkout signup
Flow: enter email → magic link → verified → Stripe checkout → dashboard

- SessionsController: new/create (send magic link), sent, verify, destroy
- Customer model: generate_magic_token!, magic_token_valid?, verify_email!
- Migration: magic_token, magic_token_expires_at, email_verified_at + unique indexes
- CustomerMailer + mailer layout with magic link email (html + text)
- CheckoutController: GET /checkout/start requires auth, passes customer_id
  as Stripe metadata; webhook finds customer by metadata and updates record
- DashboardController: requires auth, uses current_customer from session
- ApplicationController: current_customer, require_auth, redirect_after_auth
  (stores return_to so verify sends user back to where they were headed)
- Resend gem + initializer; production uses :resend delivery method
- Dev logs magic link URL to Rails logger instead of sending email
- Pricing page: simple link to /checkout/start (no more JS fetch)
- Layout: Sign in / Dashboard / Sign out nav links

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-02-27 17:12:23 -05:00

72 lines
2.4 KiB
Ruby

require "net/http"
require "uri"
require "json"
class CheckoutController < ApplicationController
skip_before_action :verify_authenticity_token, only: [:webhook]
before_action :require_auth, only: [:start]
# GET /checkout/start — create Stripe session and redirect
def start
# Already subscribed — send to dashboard
if current_customer.subscribed?
return redirect_to dashboard_path
end
stripe_session = Stripe::Checkout::Session.create(
customer_email: current_customer.email,
mode: "subscription",
line_items: [{ price: ENV.fetch("STRIPE_PRICE_ID"), quantity: 1 }],
success_url: "#{ENV.fetch("BASE_URL")}/dashboard",
cancel_url: "#{ENV.fetch("BASE_URL")}/pricing",
metadata: { customer_id: current_customer.id }
)
redirect_to stripe_session.url, allow_other_host: true
rescue Stripe::StripeError => e
redirect_to pricing_path, alert: e.message
end
# POST /checkout/webhook
def webhook
payload = request.body.read
sig_header = request.headers["HTTP_STRIPE_SIGNATURE"]
event = Stripe::Webhook.construct_event(
payload, sig_header, ENV.fetch("STRIPE_WEBHOOK_SECRET")
)
if event["type"] == "checkout.session.completed"
sess = event["data"]["object"]
# Find the customer we created at signup via metadata
customer = Customer.find_by(id: sess.dig("metadata", "customer_id"))
customer ||= Customer.find_by(email: sess.dig("customer_details", "email"))
return render json: { status: "ok" } unless customer
uri = URI("#{ENV.fetch("INFRA_SERVICE_URL")}/instances")
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"
req = Net::HTTP::Post.new(uri.path, "Content-Type" => "application/json")
req.body = {
stripe_customer_id: sess["customer"],
stripe_subscription_id: sess["subscription"],
email: customer.email
}.to_json
res = http.request(req)
body = JSON.parse(res.body)
customer.update!(
stripe_customer_id: sess["customer"],
stripe_subscription_id: sess["subscription"],
slug: body["slug"],
status: body["status"] || "provisioning"
)
end
render json: { status: "ok" }
rescue Stripe::SignatureVerificationError
render json: { error: "invalid signature" }, status: :bad_request
end
end