feat: Support DEFAULT profile VC issuance if credential_offer_uri is …

…provided #1793
TalaoDAO · Aug 16, 2023 · 94355b4 · 94355b4
1 parent 59e4cdc
commit 94355b4
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Showing 5 changed files with 51 additions and 11 deletions.
diff --git a/.vscode/launch.json b/.vscode/launch.json
@@ -28,13 +28,7 @@
       "request": "launch",
       "type": "dart",
       "program": "lib/main_production.dart",
-      "args": [
-        "--flavor",
-        "production",
-        "--target",
-        "lib/main_production.dart",
-        "--release"
-      ]
+      "args": ["--flavor", "production", "--target", "lib/main_production.dart"]
     }
   ]
 }
diff --git a/lib/dashboard/qr_code/qr_code_scan/cubit/qr_code_scan_cubit.dart b/lib/dashboard/qr_code/qr_code_scan/cubit/qr_code_scan_cubit.dart
@@ -17,6 +17,7 @@ import 'package:beacon_flutter/beacon_flutter.dart';
 import 'package:bloc/bloc.dart';
 import 'package:credential_manifest/credential_manifest.dart';
 import 'package:did_kit/did_kit.dart';
+import 'package:dio/dio.dart';
 import 'package:equatable/equatable.dart';
 import 'package:flutter/material.dart';
 import 'package:json_annotation/json_annotation.dart';
@@ -340,6 +341,7 @@ class QRCodeScanCubit extends Cubit<QRCodeScanState> {
   Future<void> accept({
     required Issuer issuer,
     required QRCodeScanCubit qrCodeScanCubit,
+    required DioClient dioClient,
   }) async {
     emit(state.loading());
     final log = getLogger('QRCodeScanCubit - accept');
@@ -366,6 +368,7 @@ class QRCodeScanCubit extends Cubit<QRCodeScanState> {
           didKitProvider: didKitProvider,
           qrCodeScanCubit: qrCodeScanCubit,
           secureStorageProvider: getSecureStorage,
+          dioClient: dioClient,
         );
         return;
       }
@@ -865,6 +868,7 @@ class QRCodeScanCubit extends Cubit<QRCodeScanState> {
             secureStorageProvider: getSecureStorage,
             credentialTypeOrId: credentialTypeOrId.toString(),
             isLastCall: i + 1 == credentials.length,
+            dioClient: DioClient('', Dio()),
           );
         }
         oidc4vc.resetNonceAndAccessToken();

diff --git a/lib/oidc4vc/initiate_oidv4vc_credential_issuance.dart b/lib/oidc4vc/initiate_oidv4vc_credential_issuance.dart
@@ -17,6 +17,7 @@ Future<void> initiateOIDC4VCCredentialIssuance({
   required DIDKitProvider didKitProvider,
   required CredentialsCubit credentialsCubit,
   required SecureStorageProvider secureStorageProvider,
+  required DioClient dioClient,
 }) async {
   final Uri uriFromScannedResponse = Uri.parse(scannedResponse);
 
@@ -25,9 +26,12 @@ Future<void> initiateOIDC4VCCredentialIssuance({
   switch (oidc4vcType) {
     case OIDC4VCType.DEFAULT:
     case OIDC4VCType.HEDERA:
-      final credentialOfferJson = jsonDecode(
-        uriFromScannedResponse.queryParameters['credential_offer'].toString(),
+      final dynamic credentialOfferJson = await getCredentialOfferJson(
+        scannedResponse: scannedResponse,
+        dioClient: dioClient,
       );
+      if (credentialOfferJson == null) throw Exception();
+
       credentialTypeOrId = credentialOfferJson['credentials'];
       break;
     case OIDC4VCType.GAIAX:
@@ -54,6 +58,7 @@ Future<void> initiateOIDC4VCCredentialIssuance({
       credentialTypeOrId: credentialTypeOrId.toString(),
       secureStorageProvider: secureStorageProvider,
       isLastCall: true,
+      dioClient: dioClient,
     );
     oidc4vc.resetNonceAndAccessToken();
     qrCodeScanCubit.goBack();
@@ -69,6 +74,7 @@ Future<void> getAndAddCredential({
   required String credentialTypeOrId,
   required SecureStorageProvider secureStorageProvider,
   required bool isLastCall,
+  required DioClient dioClient,
 }) async {
   final Uri uriFromScannedResponse = Uri.parse(scannedResponse);
 
@@ -78,9 +84,12 @@ Future<void> getAndAddCredential({
   switch (oidc4vcType) {
     case OIDC4VCType.DEFAULT:
     case OIDC4VCType.HEDERA:
-      final credentialOfferJson = jsonDecode(
-        uriFromScannedResponse.queryParameters['credential_offer'].toString(),
+      final dynamic credentialOfferJson = await getCredentialOfferJson(
+        scannedResponse: scannedResponse,
+        dioClient: dioClient,
       );
+      if (credentialOfferJson == null) throw Exception();
+
       preAuthorizedCode = credentialOfferJson['grants']
                   ['urn:ietf:params:oauth:grant-type:pre-authorized_code']
               ['pre-authorized_code']
@@ -189,3 +198,32 @@ List<int> getThumbprint(Map<String, dynamic> privateKey) {
 
   return sha256Digest.bytes;
 }
+
+Future<dynamic> getCredentialOfferJson({
+  required String scannedResponse,
+  required DioClient dioClient,
+}) async {
+  final Uri uriFromScannedResponse = Uri.parse(scannedResponse);
+
+  final keys = <String>[];
+  uriFromScannedResponse.queryParameters.forEach((key, value) => keys.add(key));
+
+  dynamic credentialOfferJson;
+
+  if (keys.contains('credential_offer')) {
+    credentialOfferJson = jsonDecode(
+      uriFromScannedResponse.queryParameters['credential_offer'].toString(),
+    );
+  } else if (keys.contains('credential_offer_uri')) {
+    final url = uriFromScannedResponse.queryParameters['credential_offer_uri']
+        .toString();
+    final responseUrl = await dioClient.get(url);
+    final Uri uriFromResponseUrl = Uri.parse(responseUrl as String);
+
+    credentialOfferJson = jsonDecode(
+      uriFromResponseUrl.queryParameters['credential_offer'].toString(),
+    );
+  }
+
+  return credentialOfferJson;
+}
diff --git a/lib/splash/bloclisteners/blocklisteners.dart b/lib/splash/bloclisteners/blocklisteners.dart
@@ -315,6 +315,7 @@ final qrCodeBlocListener = BlocListener<QRCodeScanCubit, QRCodeScanState>(
           await context.read<QRCodeScanCubit>().accept(
                 issuer: approvedIssuer,
                 qrCodeScanCubit: context.read<QRCodeScanCubit>(),
+                dioClient: DioClient('', Dio()),
               );
         } else {
           context.read<QRCodeScanCubit>().emitError(

diff --git a/lib/splash/view/splash_page.dart b/lib/splash/view/splash_page.dart
@@ -12,6 +12,7 @@ import 'package:altme/polygon_id/polygon_id.dart';
 import 'package:altme/splash/splash.dart';
 import 'package:altme/theme/app_theme/app_theme.dart';
 import 'package:did_kit/did_kit.dart';
+import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart' as services;
@@ -157,13 +158,15 @@ class _SplashViewState extends State<SplashView> {
         }
 
         if (currentOIIDC4VCType != null) {
+          // ignore: require_trailing_commas
           await initiateOIDC4VCCredentialIssuance(
             scannedResponse: uri.toString(),
             credentialsCubit: context.read<CredentialsCubit>(),
             oidc4vcType: currentOIIDC4VCType,
             didKitProvider: DIDKitProvider(),
             qrCodeScanCubit: context.read<QRCodeScanCubit>(),
             secureStorageProvider: secure_storage.getSecureStorage,
+            dioClient: DioClient('', Dio()),
           );
         }
       }