did/template_credential.py

@@ -0,0 +1,41 @@
+dpp_tmpl = {
+  "@context": [
+    "https://www.w3.org/ns/credentials/v2",
+    "https://test.uncefact.org/vocabulary/untp/dpp/0.5.0/"
+  ],
+  "type": [
+    "DigitalProductPassport",
+    "VerifiableCredential"
+  ],
+  "id": "https://example.ereuse.org/credentials/2a423366-a0d6-4855-ba65-2e0c926d09b0",
+  "issuer": {
+    "type": [
+      "CredentialIssuer"
+    ],
+    "id": "did:web:r1.identifiers.ereuse.org:did-registry:z6Mkoreij5y9bD9fL5SGW6TfMUmcbaV7LCPwZHCFEEZBrVYQ#z6Mkoreij5y9bD9fL5SGW6TfMUmcbaV7LCPwZHCFEEZBrVYQ",
+    "name": "Refurbisher One"
+  },
+  "validFrom": "2024-11-15T12:00:00",
+  "validUntil": "2034-11-15T12:00:00",
+  "credentialSubject": {
+    "type": [
+      "Product"
+    ],
+    "id": "https://id.ereuse.org/01/09520123456788/21/12345",
+    "name": "Refurbished XYZ Lenovo laptop item",
+    "registeredId": "09520123456788.21.12345",
+    "description": "XYZ Lenovo laptop refurbished by Refurbisher One",
+    "data": ""
+  },
+  "credentialSchema": {
+    "id": "https://idhub.pangea.org/vc_schemas/dpp.json",
+    "type": "FullJsonSchemaValidator2021",
+    "proof": {
+      "type": "Ed25519Signature2018",
+      "proofPurpose": "assertionMethod",
+      "verificationMethod": "did:web:r1.identifiers.ereuse.org:did-registry:z6Mkoreij5y9bD9fL5SGW6TfMUmcbaV7LCPwZHCFEEZBrVYQ#z6Mkoreij5y9bD9fL5SGW6TfMUmcbaV7LCPwZHCFEEZBrVYQ",
+      "created": "2024-12-03T15:33:42Z",
+      "jws": "eyJhbGciOiJFZERTQSIsImNyaXQiOlsiYjY0Il0sImI2NCI6ZmFsc2V9..rBPqbOcZCXB7GAnq1XIfV9Jvw4MKXlHff7qZkRfgwQ0Hnd9Ujt5s1xT4O0K6VESzWvdP2mOvMvu780fVNfraBQ"
+    }
+  }
+}

did/views.py

@@ -8,6 +8,7 @@ from evidence.parse import Build
 from dpp.api_dlt import ALGORITHM
 from dpp.models import Proof
 from dpp.api_dlt import PROOF_TYPE
+from did.template_credential import dpp_tmpl
 
 
 logger = logging.getLogger('django')
@@ -89,43 +90,46 @@ class PublicDeviceWebView(TemplateView):
         return response
 
     def get_result(self):
-        components = []
+
+        if len(self.pk.split(":")) > 1:
+            return self.build_from_dpp()
+        else:
+            return self.build_from_chid()
+
+    def build_from_dpp(self):
         data = {
             'document': {},
             'dpp': self.pk,
             'algorithm': ALGORITHM,
-            'components': components,
+            'components': [],
             'manufacturer DPP': '',
             'device': {},
         }
-        result = {
+        dev = Build(self.object.last_evidence.doc, None, check=True)
-            '@context': ['https://ereuse.org/dpp0.json'],
+        doc = dev.get_phid()
-            'data': data,
+        data['document'] = json.dumps(doc)
-        }
+        data['device'] = dev.device
+        data['components'] = dev.components
 
-        if len(self.pk.split(":")) > 1:
+        self.object.get_evidences()
-            dev = Build(self.object.last_evidence.doc, None, check=True)
+        last_dpp = Proof.objects.filter(
-            doc = dev.get_phid()
+            uuid__in=self.object.uuids, type=PROOF_TYPE['IssueDPP']
-            data['document'] = json.dumps(doc)
+        ).order_by("-timestamp").first()
-            data['device'] = dev.device
-            data['components'] = dev.components
 
-            self.object.get_evidences()
+        key = self.pk
-            last_dpp = Proof.objects.filter(
+        if last_dpp:
-                uuid__in=self.object.uuids, type=PROOF_TYPE['IssueDPP']
+            key = last_dpp.signature
-            ).order_by("-timestamp").first()
 
-            key = self.pk
+        url = "https://{}/did/{}".format(
-            if last_dpp:
+            self.request.get_host(),
-                key = last_dpp.signature
+            key
-
+        )
-            url = "https://{}/did/{}".format(
+        data['url_last'] = url
-                self.request.get_host(),
+        tmpl = dpp_tmpl.copy()
-                key
+        tmpl["credentialSubject"]["data"] = data
-            )
+        return tmpl
-            data['url_last'] = url
-            return result
 
+    def build_from_chid(self):
         dpps = []
         self.object.initial()
         for d in self.object.evidences:
@@ -144,7 +148,10 @@ class PublicDeviceWebView(TemplateView):
                 'components': dev.components
             }
 
-            dpps.append(rr)
+            tmpl = dpp_tmpl.copy()
+            tmpl["credentialSubject"]["data"] = rr
+
+            dpps.append(tmpl)
         return {
             '@context': ['https://ereuse.org/dpp0.json'],
             'data': dpps,

requirements.txt

@@ -12,5 +12,5 @@ odfpy==1.4.1
 pytz==2024.2
 json-repair==0.30.0
 setuptools==75.5.0
-requests==2.32.3 
+requests==2.32.3
 wheel==0.45.0