Stripe Bitcoin implementation

Changes to permit refunds, and in Terms of Service

whyqd/novel/models/token.py

@@ -94,6 +94,7 @@ def issue(self, **kwargs):
         self.is_purchased = kwargs.get("is_purchased", False)
         self.charge = kwargs.get("charge", None)
         self.price = kwargs.get("price", Decimal("0.00"))
+        self.currency = kwargs.get("currency", "gbp")
         self.stripe_id = kwargs.get("stripe_id", None)
         # if purchased, and the creator and recipient are the same, then the person is buying this themselves
         # (i.e.) not a gift, the person is logged in and they will automatically take ownership...

whyqd/novel/templates/novel/buy_novel.html

@@ -39,9 +39,11 @@
             <li id="forex_usd" data-value="{{ fx.usd }}"><a href="#">USD</a></li>
             <li id="forex_gbp" data-value="{{ fx.gbp }}"><a href="#">GBP</a></li>
             <li id="forex_eur" data-value="{{ fx.eur }}"><a href="#">EUR</a></li>
+            <li id="forex_btc" data-value="{{ fx.btc }}"><a href="#">BTC</a></li>
         </ul>
     </div>
-    <p></p>
-    <div class="row col-xs-12 text-center"><span class="smallprint">For Kindle & ePub readers. DRM-free. Payments are
-    securely processed by Stripe. This site never has access to your credit card number.</span></div>
+    <div class="row col-xs-12 text-center" id="buynowresponse"><span class="smallprint">For Kindle & ePub readers.
+    DRM-free. Payments securely processed by Stripe. BTC is an estimate until confirmed by Stripe.
+    This site never has access to your credit card number. Please review our
+    <a href="{% url 'legal' %}">Terms of Service</a></span></div>
 </div>

whyqd/novel/templates/novel/issue_tokens.html

@@ -66,10 +66,11 @@ <h1>Share and Manage {{ novel_object.title }}</h1>
                                     <li id="forex_eur" data-value={{ fx.eur }}><a href="#">EUR</a></li>
                                 </ul>
                             </div>
-                            <span class="smallprint">Payments are securely
-                            processed by Stripe. This site never has access to your credit card number.</span>
+                            <span class="smallprint" id="bulkbuyinfo">Payments are securely
+                            processed by Stripe. Select USD to pay in BTC (at rate calculated by Stripe). This site
+                            never has access to your credit card number. Please review our
+                            <a href="{% url 'legal' %}">Terms of Service</a></span>
                         </div>
-                        <div class="col-sm-3 col-md-4" id="bulkbuyinfo"></div>
                     </div>
                 </div>
                 <div id="tab-lend" class="tab-pane">
@@ -108,6 +109,10 @@ <h1>Share and Manage {{ novel_object.title }}</h1>
                                 {{ form.id }}
                                 <div class="col-xs-6">
                                 {{ form.recipient|add_class:"form-control" }}
+                                {% if form.instance.is_valid and not form.instance.charge.card %}
+                                <input type="text" class="form-control" placeholder="Enter refund wallet number"
+                                       id="refundTokenWallet_{{forloop.counter0}}" />
+                                {% endif %}
                                 </div>
                                 <div class="col-xs-6">
                                 {% if form.instance.is_valid %}

whyqd/novel/templates/novel/redeem_token.html

@@ -116,11 +116,17 @@
                 <a href="{% url 'legal' %}">Terms of Service</a>.</li>
             </ul>
             </dd></dl>
-            {% if token_object.is_valid and token_object.is_purchased and not token_object.creator and not request.user.is_authenticated %}
+            {% if show_refund %}
             <form class="form-horizontal" id="refundForm">
                 <div class="form-group">
-                    <label for="refundToken" class="col-sm-5 control-label">This is also your last chance for an immediate
-                    refund:</label>
+                    <label for="refundToken" class="col-sm-5 control-label">This is also your last chance for
+                    an immediate refund:</label>
+                    {% if show_bitcoin_refund %}
+                    <div class="col-sm-3">
+                        <input type="text" class="form-control" placeholder="Enter refund wallet number"
+                               id="refundTokenWallet" />
+                    </div>
+                    {% endif %}
                     <div class="col-sm-3">
                         <button type="submit" class="btn btn-default btn-sm"
                                 id="refundToken"

whyqd/novel/views.py

@@ -72,13 +72,24 @@ def buy_novel(request, surl=None, template_name="novel/buy_novel.html"):
             return HttpResponse(json.dumps(buy_response), content_type="application/json")
         # Create the charge on Stripe's servers - this will charge the user's card
         try:
-            charge = stripe.Charge.create(
-                amount=data["stripePrice"], # amount in pence
-                currency=data["stripeCurrency"],
-                card=data["stripeToken"],
-                description=data["stripeDescription"],
-                statement_description=novel_object.title,
-              )
+            # If Bitcoin, process a BitcoinReceiver first
+            if data["stripeBitcoin"] == "true":
+                #receiver = stripe.BitcoinReceiver.retrieve(data["stripeToken"])
+                #receiver(refund_mispayments=True)
+                charge = stripe.Charge.create(
+                    amount=data["stripePrice"], # amount in pence
+                    currency=data["stripeCurrency"],
+                    source=data["stripeToken"],
+                    description=data["stripeDescription"],
+                    )
+            else:
+                charge = stripe.Charge.create(
+                    amount=data["stripePrice"], # amount in pence
+                    currency=data["stripeCurrency"],
+                    card=data["stripeToken"],
+                    description=data["stripeDescription"],
+                    statement_description=novel_object.title,
+                    )
         except stripe.CardError, e:
           # The card has been declined
             if request.is_ajax():
@@ -89,6 +100,7 @@ def buy_novel(request, surl=None, template_name="novel/buy_novel.html"):
         kwargs["creator_ip"] = wiqid.get_user_ip(request)
         kwargs["novel"] = novel_object
         kwargs["charge"] = charge
+        kwargs["currency"] = data["stripeCurrency"].lower()
         kwargs["stripe_id"] = charge["id"]
         kwargs["is_purchased"] = True
         if request.user.is_authenticated():
@@ -302,6 +314,7 @@ def redeem_token(request, surl, template_name="novel/redeem_token.html"):
     token_object = get_object_or_404(Token, surl=surl)
     if not token_object.is_purchased:
         days = settings.TOKEN_DELTA
+    show_refund = False
     if request.user.is_authenticated():
         # check if user already owns this item and ignore redemption if they do
         if request.user.can_read(token_object.novel) == "owns":
@@ -316,6 +329,13 @@ def redeem_token(request, surl, template_name="novel/redeem_token.html"):
             return redirect("view_wiqi", wiqi_surl=token_object.novel.sentinal.surl)
     else:
         expiry = settings.S3_TIMER
+        if token_object.is_valid and \
+            token_object.is_purchased and \
+            not token_object.creator:
+            show_refund = True
+            show_bitcoin_refund = False
+        if show_refund  and not token_object.charge["card"]:
+            show_bitcoin_refund = True
     page_title = token_object.novel.title
     novel_object = token_object.novel
     page_subtitle = "Redemption"
@@ -387,9 +407,12 @@ def refund_token(request, surl, template_name="novel/refund_token.html"):
     page_title = token_object.novel.title
     refund_response = {'response': 'failure'}
     token_refund = False
+    data = request.POST
     if token_object.is_valid and token_object.is_purchased:
         if request.user.is_authenticated() or not token_object.creator:
             token_refund = True
+        if not token_object.charge["card"] and (data["bitcoin_refund"] == "false" or data["bitcoin_refund"] == ""):
+            token_refund = False # No bitcoin address for refund.
     if token_refund:
         stripe_key = settings.STRIPE_PUBLISHABLE_KEY
         # Set your secret key: remember to change this to your live secret key in production
@@ -398,10 +421,22 @@ def refund_token(request, surl, template_name="novel/refund_token.html"):
         try:
             # Get the token key
             stripe_charge = stripe.Charge.retrieve(token_object.charge["id"])
-            stripe_refund = stripe_charge.refunds.create(
-                amount= int(token_object.price * 100), # amount in pence / cents
-                reason = "requested_by_customer",
-              )
+            if token_object.charge["card"]:
+                stripe_refund = stripe_charge.refunds.create(
+                    amount = int(token_object.price * 100), # amount in pence / cents
+                    reason = "requested_by_customer",
+                  )
+            else:
+                try:
+                    stripe_refund = stripe_charge.refunds.create(
+                        refund_address = data["bitcoin_refund"],
+                        amount = int(token_object.price * 100), # amount in pence / cents
+                      )
+                except stripe.InvalidRequestError, e:
+                    # Stripe insists on a single repayment wallet address
+                    stripe_refund = stripe_charge.refunds.create(
+                        amount = int(token_object.price * 100), # amount in pence / cents
+                      )
             token_object.charge = stripe_refund
             token_object.is_valid = False
             token_object.is_purchased = False
@@ -415,7 +450,7 @@ def refund_token(request, surl, template_name="novel/refund_token.html"):
                                         }
                             }
             send_email(**email_kwargs)
-        except stripe.CardError, e:
+        except stripe.CardError, e: 
             # The refund has been declined
             refund_response = {'response': 'failure'}
     if request.is_ajax():

whyqd/snippets/forex.py

@@ -5,7 +5,7 @@
 import json                       # Allows the data to be decoded
 # https://github.com/ashokfernandez/PyExchangeRates/blob/master/PyExchangeRates.py
 
-CURRENCY_CHOICE = ("gbp", "usd", "eur")
+CURRENCY_CHOICE = ("gbp", "usd", "eur", "btc")
 BASE_CURRENCY = "gbp"
 
 def get_forex():

whyqd/static/css/whyqd_theme.css

@@ -268,6 +268,11 @@ body {
   line-height: 1.42857143;
   color: #333333;
   background-color: #ffffff;
+  text-rendering: optimizeLegibility;
+  font-feature-settings: "kern" 1;
+  font-kerning: normal;
+  font-variant-ligatures: normal;
+
 }
 input,
 button,

whyqd/static/js/jquery.whyqd.buy.js

@@ -9,12 +9,18 @@ $(document).ready(function() {
                     image: '/static/images/qwyre_logo_128pxBW.png',
                     name: ns.novel_title,
                     email: ns.user_email,
+                    bitcoin: "true",
+                    refund_mispayments: "true",
                     token: function(token) {
                         // http://stackoverflow.com/a/22461608
                         // You can access the token ID with `token.id`
                         if (!ns.user_email) {
                             ns.user_email = token.email;
                         }
+                        var is_bitcoin = false;
+                        if (token.type === "bitcoin_receiver") {
+                            is_bitcoin = true;
+                        }
                         $.ajax({
                             url: $('#stripeBuy').val(),
                             type: 'post',
@@ -25,6 +31,7 @@ $(document).ready(function() {
                                 stripeCurrency: ns.currency,
                                 stripeEmails: ns.user_email,
                                 selfPurchase: true, // Buying for own use
+                                stripeBitcoin: is_bitcoin,
                                 template: 'purchase'
                             },
                             success: function(data) {
@@ -33,7 +40,7 @@ $(document).ready(function() {
                                     $("#buytrigger").val(true).change();
                                     $('#buynow').empty();
                                     if (data.registered) {
-                                        $('#buynow').after(
+                                        $('#buynow').before(
                                             '<div class="alert alert-success alert-dismissable">'+
                                             '<button type="button" class="close" ' + 
                                             'data-dismiss="alert" aria-hidden="true">' + '&times;' + 
@@ -50,7 +57,7 @@ $(document).ready(function() {
                                     }
                                 }
                                 else {
-                                    $('#buynow').after(
+                                    $('#buynowresponse').before(
                                         '<div class="alert alert-danger alert-dismissable">'+
                                             '<button type="button" class="close" ' + 
                                                 'data-dismiss="alert" aria-hidden="true">' + '&times;' + 
@@ -61,7 +68,7 @@ $(document).ready(function() {
                                 }
                             },
                             error: function(data) {
-                                $('#buynow').after(
+                                $('#buynowresponse').after(
                                     '<div class="alert alert-danger alert-dismissable">'+
                                         '<button type="button" class="close" ' + 
                                             'data-dismiss="alert" aria-hidden="true">' + '&times;' + 
@@ -90,39 +97,47 @@ $(document).ready(function() {
     }
     $('[id^=forex_]').on('click', function (e) {
         var forex = this;
-        var base_price = parseFloat($('#basePrice').attr('value').trim()).toFixed(2);
+        var base_price = parseFloat($('#basePrice').attr('value').trim());
         var next_price = $('#nextPrice').attr('value').trim();
-        var select_price = parseFloat($(this).attr('data-value').trim()).toFixed(2);
-        console.log(base_price);
-        console.log($('#'+this.id).val());
+        var select_price = parseFloat($(this).attr('data-value').trim());
         var new_price = (select_price * base_price);
         if (next_price) {
-            next_price = (parseFloat(next_price).toFixed(2) * select_price/100).toFixed(2);
+            next_price = (parseFloat(next_price) * select_price/100);
         }
-        $("#stripePrice").val(new_price.toFixed());
         switch (this.id) {
             case 'forex_usd':
                 $('#stripeButton').html("Buy for $ " + (new_price/100).toFixed(2));
                 $("#stripeCurrency").val('USD');
                 if (next_price) {
-                    $('#nextPriceText').html("Price increases to $ " + next_price);
+                    $('#nextPriceText').html("Price increases to $ " + next_price.toFixed(2));
                 }
                 break;
             case 'forex_gbp':
                 $('#stripeButton').html("Buy for &pound; " + (new_price/100).toFixed(2));
                 $("#stripeCurrency").val('GBP');
                 if (next_price) {
-                    $('#nextPriceText').html("Price increases to &pound; " + next_price);
+                    $('#nextPriceText').html("Price increases to &pound; " + next_price.toFixed(2));
                 }
                 break;
             case 'forex_eur':
                 $('#stripeButton').html("Buy for &euro; " + (new_price/100).toFixed(2));
                 $("#stripeCurrency").val('EUR');
                 if (next_price) {
-                    $('#nextPriceText').html("Price increases to &euro; " + next_price);
+                    $('#nextPriceText').html("Price increases to &euro; " + next_price.toFixed(2));
                 }
                 break;
+            case 'forex_btc':
+                $('#stripeButton').html("Buy for &#3647; " + (new_price/100).toFixed(4));
+                if (next_price) {
+                    $('#nextPriceText').html("Price increases to &#3647; " + next_price.toFixed(4));
+                }
+                // Stripe needs this to be in USD for 10min period conversion rate
+                var USD_price = parseFloat($('#forex_usd').attr('data-value').trim());
+                new_price = (USD_price * base_price);
+                $("#stripeCurrency").val('USD');
+                break;
         }
+        $("#stripePrice").val(new_price.toFixed());
         e.preventDefault();
     });
     $("#buytrigger").change(function () {

whyqd/static/js/jquery.whyqd.redeem.js

@@ -63,8 +63,16 @@ $(document).ready(function() {
     });
     $('#refundToken').on('click', function (e) {
         var tid = this;
+        var bitid = false;
+        if ($('#refundTokenWallet').length != 0) {
+            bitid = $('#refundTokenWallet').val();
+        }
         $.ajax({
-            url: tid.value
+            url: tid.value,
+            type: 'post',
+            data: {
+                bitcoin_refund: bitid
+            }
             }).done(function(data) {
                 if (data.response == 'success') {
                     window.location.href = '/';