issue real credentials

idhub/admin/forms.py

@@ -118,7 +118,7 @@ class ImportForm(forms.Form):
             verified=False,
             user=user,
             csv_data=json.dumps(row),
-            did_issuer=self._did.did,
+            issuer_did=self._did,
             schema=self._schema,
         )
 

idhub/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.2.5 on 2023-11-14 17:48
+# Generated by Django 4.2.5 on 2023-11-15 09:58
 
 from django.conf import settings
 from django.db import migrations, models
@@ -13,6 +13,33 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
+        migrations.CreateModel(
+            name='DID',
+            fields=[
+                (
+                    'id',
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name='ID',
+                    ),
+                ),
+                ('created_at', models.DateTimeField(auto_now=True)),
+                ('label', models.CharField(max_length=50)),
+                ('did', models.CharField(max_length=250)),
+                ('key_material', models.CharField(max_length=250)),
+                (
+                    'user',
+                    models.ForeignKey(
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name='dids',
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+        ),
         migrations.CreateModel(
             name='File_datas',
             fields=[
@@ -141,8 +168,7 @@ class Migration(migrations.Migration):
                 ('verified', models.BooleanField()),
                 ('created_on', models.DateTimeField(auto_now=True)),
                 ('issued_on', models.DateTimeField(null=True)),
-                ('did_issuer', models.CharField(max_length=250)),
+                ('subject_did', models.CharField(max_length=250)),
-                ('did_subject', models.CharField(max_length=250)),
                 ('data', models.TextField()),
                 ('csv_data', models.TextField()),
                 (
@@ -157,6 +183,14 @@ class Migration(migrations.Migration):
                         default=1,
                     ),
                 ),
+                (
+                    'issuer_did',
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name='vcredentials',
+                        to='idhub.did',
+                    ),
+                ),
                 (
                     'schema',
                     models.ForeignKey(
@@ -284,33 +318,6 @@ class Migration(migrations.Migration):
                 ),
             ],
         ),
-        migrations.CreateModel(
-            name='DID',
-            fields=[
-                (
-                    'id',
-                    models.BigAutoField(
-                        auto_created=True,
-                        primary_key=True,
-                        serialize=False,
-                        verbose_name='ID',
-                    ),
-                ),
-                ('created_at', models.DateTimeField(auto_now=True)),
-                ('label', models.CharField(max_length=50)),
-                ('did', models.CharField(max_length=250)),
-                ('key_material', models.CharField(max_length=250)),
-                (
-                    'user',
-                    models.ForeignKey(
-                        null=True,
-                        on_delete=django.db.models.deletion.CASCADE,
-                        related_name='dids',
-                        to=settings.AUTH_USER_MODEL,
-                    ),
-                ),
-            ],
-        ),
         migrations.CreateModel(
             name='UserRol',
             fields=[

idhub/models.py

@@ -2,10 +2,12 @@ import json
 import requests
 import datetime
 from django.db import models
+from django.template.loader import get_template
 from django.utils.translation import gettext_lazy as _
 from utils.idhub_ssikit import (
     generate_did_controller_key,
     keydid_from_controller_key,
+    sign_credential,
 )
 from idhub_auth.models import User
 
@@ -459,8 +461,7 @@ class VerificableCredential(models.Model):
     verified = models.BooleanField()
     created_on = models.DateTimeField(auto_now=True)
     issued_on = models.DateTimeField(null=True)
-    did_issuer = models.CharField(max_length=250)
+    subject_did = models.CharField(max_length=250)
-    did_subject = models.CharField(max_length=250)
     data = models.TextField()
     csv_data = models.TextField()
     status = models.PositiveSmallIntegerField(
@@ -472,6 +473,11 @@ class VerificableCredential(models.Model):
         on_delete=models.CASCADE,
         related_name='vcredentials',
     )
+    issuer_did = models.ForeignKey(
+        DID,
+        on_delete=models.CASCADE,
+        related_name='vcredentials',
+    )
     schema = models.ForeignKey(
         Schemas,
         on_delete=models.CASCADE,
@@ -498,9 +504,39 @@ class VerificableCredential(models.Model):
         return data
 
     def issue(self, did):
+        if self.status == self.Status.ISSUED:
+            return
+
         self.status = self.Status.ISSUED
-        self.did_subject = did
+        self.subject_did = did
         self.issued_on = datetime.datetime.now()
+        self.data = sign_credential(
+            self.render(),
+            self.issuer_did.key_material
+        )
+
+    def get_context(self):
+        d = json.loads(self.csv_data)
+        format = "%Y-%m-%dT%H:%M:%SZ"
+        issuance_date = self.issued_on.strftime(format)
+
+        context = {
+            'vc_id': self.id,
+            'issuer_did': self.issuer_did.did,
+            'subject_did': self.subject_did,
+            'issuance_date': issuance_date,
+        }
+        context.update(d)
+        return context
+
+    def render(self):
+        context = self.get_context()
+        template_name = 'credentials/{}'.format(
+            self.schema.file_schema
+        )
+        tmpl = get_template(template_name)
+        return tmpl.render(context)
+
 
     def get_issued_on(self):
         if self.issued_on:

idhub_auth/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.2.5 on 2023-11-14 17:48
+# Generated by Django 4.2.5 on 2023-11-15 09:58
 
 from django.db import migrations, models
 

utils/idhub_ssikit/__init__.py

@@ -3,6 +3,7 @@ import datetime
 import didkit
 import json
 import jinja2
+from django.template.backends.django import Template
 
 
 def generate_did_controller_key():
@@ -46,6 +47,21 @@ def render_and_sign_credential(vc_template: jinja2.Template, jwk_issuer, vc_data
     return asyncio.run(inner())
 
     
+def sign_credential(unsigned_vc: str, jwk_issuer):
+    """
+        Signs the and unsigned credential with the provided key.
+    """
+    async def inner():
+      signed_vc = await didkit.issue_credential(
+          unsigned_vc,
+          '{"proofFormat": "ldp"}',
+          jwk_issuer
+      )
+      return signed_vc
+
+    return asyncio.run(inner())
+
+
 def verify_credential(vc, proof_options):
     """
     Returns a (bool, str) tuple indicating whether the credential is valid.