yum, we accept bitcoin!

app/assets/javascripts/static/donate.js

@@ -1,27 +1,28 @@
 (function() {
   var donationForm = document.getElementById('donation-form');
-  var amountField = donationForm.querySelector(
-    '[name=donation\\[amount\\]]');
-  var emailField = donationForm.querySelector(
-    '[name=donation\\[donor_email\\]]');
-  var tokenField = donationForm.querySelector(
-    '[name=donation\\[stripe_token\\]]');
+
+  function field(name) {
+    return donationForm.querySelector(
+      'input[name=donation\\[' + name + '\\]]');
+  }
 
   var checkout = StripeCheckout.configure({
     key: donationForm.getAttribute('data-checkout-publishable-key'),
     image: donationForm.getAttribute('data-checkout-image'),
     token: function(token) {
-      tokenField.value = token.id;
-      emailField.value = token.email;
+      field('stripe_token').value = token.id;
+      field('stripe_token_type').value = token.type;
+      field('donor_email').value = token.email;
       donationForm.submit();
-    }
+    },
+    bitcoin: true
   });
 
   donationForm.addEventListener('submit', function(e) {
-    if (!tokenField.value) {
+    if (!field('stripe_token').value) {
       e.preventDefault();
 
-      var amount = Math.floor(parseFloat(amountField.value) * 100);
+      var amount = Math.floor(parseFloat(field('amount').value) * 100);
 
       if (!isNaN(amount)) {
         checkout.open({

app/models/donation.rb

@@ -16,16 +16,24 @@ class Donation < ActiveRecord::Base
 
     campaign.progress += amount
 
+    charge_params = {
+      amount: amount,
+      description: 'Donation (thank you!)',
+      currency: 'usd'
+    }
+
+    if params[:stripe_token_type] == 'card'
       customer = Stripe::Customer.create(
         card: params[:stripe_token]
       )
+      charge_params[:customer] = customer.id
+    elsif params[:stripe_token_type] == 'bitcoin_receiver'
+      charge_params[:card] = params[:stripe_token]
+    else
+      raise ArgumentError, "unexpected stripe token type #{params[:stripe_token_type]}"
+    end
 
-    charge = Stripe::Charge.create(
-      :customer    => customer.id,
-      :amount      => amount,
-      :description => 'Donation (thank you!)',
-      :currency    => 'usd'
-    )
+    charge = Stripe::Charge.create(charge_params)
 
     donation = campaign.donations.build
     donation.amount = amount

app/views/static/donate.html.haml

@@ -10,6 +10,7 @@
     'data-checkout-image' => image_path('default_preview.png'),
     'data-checkout-publishable-key' => Rails.configuration.stripe[:publishable_key] do
   = hidden_field_tag 'donation[stripe_token]'
+  = hidden_field_tag 'donation[stripe_token_type]'
   = hidden_field_tag 'donation[donor_email]'
   %header
     %p#donation-form-title