add api flow for webhook

oidc4vp/views.py

@@ -7,7 +7,7 @@ from django.template import loader
 from django.core.mail import EmailMultiAlternatives
 from django.conf import settings
 from django.views.generic.edit import View, FormView
-from django.http import HttpResponse, Http404, JsonResponse
+from django.http import HttpResponse, Http404, JsonResponse, QueryDict
 from django.shortcuts import get_object_or_404, redirect
 from django.views.decorators.csrf import csrf_exempt
 from django.utils.decorators import method_decorator
@@ -150,16 +150,10 @@ class VerifyView(View):
 
         for user in User.objects.filter(is_admin=True):
             self.send_email(user)
-        self.send_api()
 
         response["response"] = "Validation Code {}".format(code)
         return JsonResponse(response)
 
-    def send_api(self):
-        data = {"vp": self.vp_token.vp_token, "code": self.vp_token.code}
-        url = self.vp_token.org.response_uri
-        requests.post(url, data=data)
-
     def validate(self, request):
         auth_header = request.headers.get('Authorization', b'')
         auth_data = auth_header.split()
@@ -228,6 +222,7 @@ class VerifyView(View):
     def get_verification(self):
         return self.vp_token.get_user_info_all()
         
+
 class AllowCodeView(View):
     def get(self, request, *args, **kwargs):
         code = self.request.GET.get("code")
@@ -239,6 +234,9 @@ class AllowCodeView(View):
                 code=code,
                 code_used=False
         )
+        if self.request.session.get("response_uri"):
+            url = self.send_api()
+            return redirect(url)
 
         promotion = self.authorization.promotions.first()
         if not promotion:
@@ -246,6 +244,40 @@ class AllowCodeView(View):
 
         return redirect(promotion.get_url(code))
 
+    def send_api(self):
+        vp = self.get_vp_token()
+        if not vp:
+            return
+
+        data = {
+            "vp_token": vp,
+            "code": self.authorization.code
+        }
+        url = self.request.session.get("response_uri")
+        result = requests.post(url, data=data)
+        return result.json().get('redirect_uri')
+
+    def get_vp_token(self):
+        vp = self.authorization.vp_tokens.first()
+        if not vp:
+            return
+        return base64.b64encode(vp.vp_token.encode()).decode()
+
+    def get_response_uri(self):
+        data = {
+            "code": self.authorization.code,
+        }
+        query_dict = QueryDict('', mutable=True)
+        query_dict.update(data)
+
+        response_uri = self.request.session.get("response_uri")
+
+        url = '{response_uri}?{params}'.format(
+            response_uri=response_uri,
+            params=query_dict.urlencode()
+        )
+        return url
+
 
 class ReceivedCodeView(View):
     template_name = "received_code.html"

promotion/views.py

@@ -39,6 +39,7 @@ class ContractView(FormView):
     success_url = reverse_lazy('promotion:thanks')
 
     def get_context_data(self, **kwargs):
+        import pdb; pdb.set_trace()
         self.context = super().get_context_data(**kwargs)
         code = self.request.GET.get("code")
         self.get_discount(code)
@@ -106,9 +107,13 @@ class SelectWalletView(FormView):
     success_url = reverse_lazy('promotion:select_wallet')
 
     def get_form_kwargs(self):
-        self.get_response_uri()
+        presentation = self.get_response_uri()
+        if not presentation:
+            presentation = json.dumps(
+            settings.SUPPORTED_CREDENTIALS
+        )
         kwargs = super().get_form_kwargs()
-        kwargs['presentation_definition'] = json.dumps(settings.SUPPORTED_CREDENTIALS)
+        kwargs['presentation_definition'] = presentation
         return kwargs
 
     def form_valid(self, form):
@@ -120,9 +125,14 @@ class SelectWalletView(FormView):
         if len(path) < 2:
             return
 
-        args = path[1]
-        response_uri = dict(
-            [x.split("=") for x in args.split("&")]
-        ).get('response_uri')
+        args = dict(
+            [x.split("=") for x in path[1].split("&")]
+        )
+        response_uri = args.get('response_uri')
 
         self.request.session["response_uri"] = response_uri
+        presentation = args.get('presentation_definition')
+
+        for x in settings.SUPPORTED_CREDENTIALS:
+            if x in presentation:
+                return json.dumps([x])