feat: Add vp2 converter methods

Author: azuzi

src/main/java/com/danubetech/verifiablecredentials/jwt/ToJwtConverter.java

@@ -4,6 +4,7 @@
 import com.danubetech.verifiablecredentials.VerifiableCredential;
 import com.danubetech.verifiablecredentials.VerifiableCredentialV2;
 import com.danubetech.verifiablecredentials.VerifiablePresentation;
+import com.danubetech.verifiablecredentials.VerifiablePresentationV2;
 import com.danubetech.verifiablecredentials.jsonld.VerifiableCredentialKeywords;
 import com.nimbusds.jwt.JWTClaimsSet;
 import foundation.identity.jsonld.JsonLDKeywords;
@@ -237,4 +238,45 @@ public static JwtVerifiableCredentialV2 toJwtVerifiableCredentialV2(VerifiableCr
 
         return toJwtVerifiableCredentialV2(verifiableCredential, null, false, false);
     }
+
+    public static JwtVerifiablePresentationV2 toJwtVerifiablePresentation(VerifiablePresentationV2 verifiablePresentation, String aud) {
+
+        JWTClaimsSet.Builder jwtPayloadBuilder = new JWTClaimsSet.Builder();
+
+        VerifiablePresentationV2 payloadVerifiablePresentation = VerifiablePresentationV2.builder()
+                .defaultContexts(false)
+                .defaultTypes(false)
+                .build();
+
+        JsonLDUtils.jsonLdAddAll(payloadVerifiablePresentation, verifiablePresentation.getJsonObject());
+
+        URI id = verifiablePresentation.getId();
+        if (id != null) {
+            jwtPayloadBuilder.jwtID(id.toString());
+            JsonLDUtils.jsonLdRemove(payloadVerifiablePresentation, JsonLDKeywords.JSONLD_TERM_ID);
+        }
+
+        URI holder = verifiablePresentation.getHolder();
+        if (holder != null) {
+            jwtPayloadBuilder.issuer(holder.toString());
+            jwtPayloadBuilder.subject(holder.toString());
+            JsonLDUtils.jsonLdRemove(payloadVerifiablePresentation, VerifiableCredentialKeywords.JSONLD_TERM_HOLDER);
+        }
+
+        if (aud != null) {
+            jwtPayloadBuilder.audience(aud);
+        }
+
+        Map<String, Object> vpContent = new LinkedHashMap<>(payloadVerifiablePresentation.getJsonObject());
+        jwtPayloadBuilder.claim(JwtKeywords.JWT_CLAIM_VP, vpContent);
+
+        JWTClaimsSet jwtPayload = jwtPayloadBuilder.build();
+
+        return new JwtVerifiablePresentationV2(jwtPayload, payloadVerifiablePresentation, null, null);
+    }
+
+    public static JwtVerifiablePresentationV2 toJwtVerifiablePresentation(VerifiablePresentationV2 verifiablePresentation) {
+
+        return toJwtVerifiablePresentation(verifiablePresentation, null);
+    }
 }

src/main/java/com/danubetech/verifiablecredentials/validation/Validation.java

@@ -3,6 +3,7 @@
 import com.danubetech.verifiablecredentials.VerifiableCredential;
 import com.danubetech.verifiablecredentials.VerifiableCredentialV2;
 import com.danubetech.verifiablecredentials.VerifiablePresentation;
+import com.danubetech.verifiablecredentials.VerifiablePresentationV2;
 import com.danubetech.verifiablecredentials.credentialstatus.CredentialStatus;
 
 import java.net.URI;
@@ -118,6 +119,21 @@ public static void validate(VerifiableCredentialV2 verifiableCredential) throws
         validateStatus(verifiableCredential);
     }
 
+    public static void validate(VerifiablePresentationV2 verifiablePresentation) throws IllegalStateException {
+
+        foundation.identity.jsonld.validation.Validation.validate(verifiablePresentation);
+
+        validateRun(() -> validateTrue(verifiablePresentation.getJsonObject() != null), "Bad or missing JSON object.");
+        validateRun(() -> validateTrue(! verifiablePresentation.getContexts().isEmpty()), "Bad or missing '@context'.");
+        validateRun(() -> validateUrl(verifiablePresentation.getContexts().get(0)), "@context must be a valid URI: " + verifiablePresentation.getContexts().get(0));
+        validateRun(() -> validateTrue(VerifiableCredentialV2.DEFAULT_JSONLD_CONTEXTS[0].equals(verifiablePresentation.getContexts().get(0))), "First value of @context must be " + VerifiableCredentialV2.DEFAULT_JSONLD_CONTEXTS[0] + ": " + verifiablePresentation.getContexts().get(0));
+        validateRun(() -> { if (verifiablePresentation.getId() != null) validateUrl(verifiablePresentation.getId()); }, "'id' must be a valid URI.");
+
+        validateRun(() -> validateTrue(! verifiablePresentation.getTypes().isEmpty()), "Bad or missing 'type'.");
+        validateRun(() -> validateTrue(verifiablePresentation.getTypes().contains(VerifiablePresentationV2.DEFAULT_JSONLD_TYPES[0])), "type must contain VerifiablePresentation: " + verifiablePresentation.getTypes());
+        validateOneOfRuns(List.of(() -> validateTrue(verifiablePresentation.getVerifiableCredentialAsList() != null), () -> validateTrue(verifiablePresentation.getJwtVerifiableCredentialString() != null)), "Bad or missing 'verifiableCredential'.");
+    }
+
     private static void validateIssuer(VerifiableCredentialV2 verifiableCredential) throws IllegalStateException {
 
         validateRun(() -> validateTrue(verifiableCredential.getIssuer() != null), "Bad or missing 'issuer'.");