#31 API Frontend token generating

* adds frontend settings for users to create API tokens on their user settings

user/forms.py

@@ -6,8 +6,12 @@ Created on: 08.07.21
 
 """
 from django import forms
-from django.urls import reverse
+from django.db import IntegrityError
+from django.urls import reverse, reverse_lazy
 from django.utils.translation import gettext_lazy as _
+
+from api.models import APIUserToken
+from intervention.inputs import GenerateInput
 from user.models import User
 
 from konova.forms import BaseForm, BaseModalForm
@@ -113,3 +117,45 @@ class UserContactForm(BaseModalForm):
         self.initialize_form_field("mail", self.instance.email)
 
 
+class UserAPITokenForm(BaseForm):
+    token = forms.CharField(
+        label=_("Token"),
+        label_suffix="",
+        max_length=255,
+        required=True,
+        help_text=_("Generated automatically"),
+        widget=GenerateInput(
+            attrs={
+                "class": "form-control",
+                "url": reverse_lazy("api:generate-new-token"),
+            }
+        )
+    )
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.form_title = _("Create new token")
+        self.form_caption = _("A new token needs to be validated by an administrator!")
+
+        self.action_url = reverse("user:api-token")
+        self.cancel_redirect = reverse("user:index")
+
+        # Make direct token editing by user impossible. Instead set the proper url for generating a new token
+        self.initialize_form_field("token", None)
+        self.fields["token"].widget.attrs["readonly"] = True
+
+    def save(self):
+        """ Saves the form data
+
+        Returns:
+            api_token (APIUserToken)
+        """
+        user = self.instance
+        new_token = self.cleaned_data["token"]
+        user.api_token.delete()
+        new_token = APIUserToken.objects.create(
+            token=new_token
+        )
+        user.api_token = new_token
+        user.save()
+        return new_token