feat(app): Support for schemas when credential not found

Signed-off-by: Talwinder kaur <[email protected]>
trustbloc · Aug 29, 2023 · 3f30355 · 3f30355
1 parent 2b18a86
commit 3f30355
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Showing 3 changed files with 52 additions and 5 deletions.
diff --git a/demo/app/android/app/src/main/kotlin/walletsdk/flutter/app/MainActivity.kt b/demo/app/android/app/src/main/kotlin/walletsdk/flutter/app/MainActivity.kt
@@ -801,7 +801,10 @@ class MainActivity : FlutterActivity() {
     /**
     This method invoke processAuthorizationRequest defined in OpenID4Vp.kt file.
      */
-    private fun processAuthorizationRequest(call: MethodCall, result: MethodChannel.Result): List<String> {
+    private fun processAuthorizationRequest(
+        call: MethodCall,
+        result: MethodChannel.Result
+    ): List<String> {
         val walletSDK = this.walletSDK
             ?: throw java.lang.Exception("walletSDK not initiated. Call initSDK().")
         val authorizationRequest = call.argument<String>("authorizationRequest")
@@ -820,14 +823,38 @@ class MainActivity : FlutterActivity() {
             val matchedReq = openID4VP.getMatchedSubmissionRequirements(
                 convertToVerifiableCredentialsArray(storedCredentials)
             )
-            var resp =  convertVerifiableCredentialsArray(
+            var resp = convertVerifiableCredentialsArray(
                 matchedReq.atIndex(0).descriptorAtIndex(0).matchedVCs
             )
             if (resp.isEmpty()) {
                 var typeConstraint = matchedReq.atIndex(0).descriptorAtIndex(0).typeConstraint()
-                result.error("NATIVE_ERR",  "No credentials of type $typeConstraint were found",  "Required credential $typeConstraint is missing from the wallet");
+                if (typeConstraint.isEmpty()) {
+                    var schemas = matchedReq.atIndex(0).descriptorAtIndex(0).schemas()
+                    var schemaList = mutableListOf<Any>()
+                    for (i in 0..schemas.length()) {
+                        val schemasResp: MutableMap<String, Any> = mutableMapOf()
+                        if (schemas.atIndex(i) != null) {
+                            schemasResp["required"] = schemas.atIndex(i).required()
+                            schemasResp["uri"] = schemas.atIndex(i).uri()
+                            schemaList.addAll(listOf(schemasResp))
+                        }
+                    }
+
+                    result.error(
+                        "NATIVE_ERR",
+                        "No credentials conforming to the following schemas were found",
+                        "$schemaList"
+                    );
+                }
+                result.error(
+                    "NATIVE_ERR",
+                    "No credentials of type $typeConstraint were found",
+                    "Required credential $typeConstraint is missing from the wallet"
+                );
             }
+
             return resp
+
         }
         return listOf()
     }

diff --git a/demo/app/ios/Runner/flutterPlugin.swift b/demo/app/ios/Runner/flutterPlugin.swift
@@ -175,6 +175,26 @@ public class SwiftWalletSDKPlugin: NSObject, FlutterPlugin {
                 var resp = convertVerifiableCredentialsArray(arr: matchedReq.atIndex(0)!.descriptor(at:0)!.matchedVCs!)
                 if (resp.isEmpty) {
                     var typeConstraint = matchedReq.atIndex(0)!.descriptor(at:0)!.typeConstraint()
+                    if typeConstraint == "" {
+                      var schemas =  matchedReq.atIndex(0)!.descriptor(at:0)!.schemas()
+                        var schemaList:[Any] = []
+                        if let schemas = schemas {
+                            var schemasResp : [String: Any] = [:]
+                            for index in 0..<schemas.length() {
+                                if let schema = schemas.atIndex(index) {
+                                    schemasResp["required"] = schema.required()
+                                    schemasResp["uri"] = schema.uri()
+                                }
+
+                                schemaList.append(schemasResp)
+                            }
+
+                            return result(FlutterError.init(code: "NATIVE_ERR",
+                                                            message: "No credentials conforming to the following schemas were found",
+                                                            details: "\(schemaList)"))
+
+                        }
+                    }
                     return result(FlutterError.init(code: "NATIVE_ERR",
                                                     message: "No credentials of type \(typeConstraint) were found",
                                                     details: "Required credential \(typeConstraint) is missing from the wallet"))

diff --git a/demo/app/lib/scenarios/handle_openid_vp_flow.dart b/demo/app/lib/scenarios/handle_openid_vp_flow.dart
@@ -30,7 +30,7 @@ void handleOpenIDVpFlow(BuildContext context, String qrCodeURL) async {
   storedCredentials = await storageService.retrieveCredentials(username!);
   log("stored credentials -> $storedCredentials");
 
-  credentials = storedCredentials.map((e) => e.value.rawCredential).toList();
+ credentials = storedCredentials.map((e) => e.value.rawCredential).toList();
   if (credentials.isEmpty) {
     log("credentials is empty now $credentials");
     Navigator.push(
@@ -43,7 +43,7 @@ void handleOpenIDVpFlow(BuildContext context, String qrCodeURL) async {
   }
 
   try {
-    var resp = await walletSDKPlugin.processAuthorizationRequest(
+     await walletSDKPlugin.processAuthorizationRequest(
         authorizationRequest: qrCodeURL, storedCredentials: credentials);
   } on PlatformException catch (error) {
     Navigator.push(