url-based payments

1 files changed, 25 insertions, 1 deletions

diff --git a/talerdonations/donations/donations.py b/talerdonations/donations/donations.py
index 220fbb7..06c6617 100644
--- a/talerdonations/donations/donations.py
+++ b/talerdonations/donations/donations.py
@@ -246,6 +246,16 @@ def donate():
 
 
 ##
+# This endpoint is used by the payment request page
+# to check if the payment has been completed via the QR code.
+@app.route("/check-status/<order_id>")
+def check_status(order_id, session_id):
+    pay_params = dict( instance=INSTANCE, order_id=order_id)
+    pay_status = backend_get("check-payment", pay_params)
+    return flask.jsonify(paid=pay_status["paid"])
+
+
+##
 # Serve the fulfillment page.
 #
 # @param receiver the donation receiver name, that should
@@ -260,7 +270,21 @@ def fulfillment(receiver):
     pay_status = backend_get("check-payment", pay_params)
 
     if pay_status.get("payment_redirect_url"):
-        return flask.redirect(pay_status["payment_redirect_url"])
+        taler_pay_uri = pay_status["taler_pay_uri"]
+        qrcode_svg = get_qrcode_svg(taler_pay_uri)
+        check_status_url_enc = urllib.parse.quote(
+            flask.url_for("check_status", order_id=order_id)
+        )
+        content = flask.render_template(
+            "templates/request_payment.html",
+            article_name=article_name,
+            taler_pay_uri=taler_pay_uri,
+            qrcode_svg=qrcode_svg,
+            check_status_url_enc=check_status_url_enc
+        )
+        headers = {"Taler": taler_pay_uri}
+        resp = flask.Response(content, status=402, headers=headers)
+        return resp
 
     if pay_status.get("paid"):
         extra = pay_status["contract_terms"]["extra"]