Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

feat: create model transformers for VC and VP #3515

Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 23 additions & 0 deletions extensions/common/iam/identity-trust/build.gradle.kts
Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

plugins {
`java-library`
`maven-publish`
}

dependencies {
api(project(":extensions:common:iam:identity-trust:identity-trust-transform"))
}

Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

plugins {
`java-library`
`maven-publish`
}

dependencies {
api(project(":spi:common:identity-trust-spi"))
api(project(":spi:common:json-ld-spi"))
api(project(":spi:common:transform-spi"))
api(project(":spi:common:transform-spi"))

testImplementation(project(":extensions:common:json-ld"))
testImplementation(project(":core:common:transform-core")) //for the TransformerContextImpl
testImplementation(testFixtures(project(":spi:common:identity-trust-spi")))
}

Original file line number Diff line number Diff line change
@@ -0,0 +1,69 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

package org.eclipse.edc.iam.identitytrust;

import org.eclipse.edc.iam.identitytrust.transform.to.JsonObjectToCredentialStatusTransformer;
import org.eclipse.edc.jsonld.spi.JsonLd;
import org.eclipse.edc.runtime.metamodel.annotation.Extension;
import org.eclipse.edc.runtime.metamodel.annotation.Inject;
import org.eclipse.edc.spi.result.Result;
import org.eclipse.edc.spi.system.ServiceExtension;
import org.eclipse.edc.spi.system.ServiceExtensionContext;
import org.eclipse.edc.transform.spi.TypeTransformerRegistry;
import org.jetbrains.annotations.NotNull;

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;

import static java.lang.String.format;

@Extension(value = IdentityTrustTransformExtension.NAME, categories = { "iam", "transform", "jsonld" })
public class IdentityTrustTransformExtension implements ServiceExtension {
public static final String NAME = "Identity And Trust Transform Extension";

@Inject
private TypeTransformerRegistry typeTransformerRegistry;

@Inject
private JsonLd jsonLdService;

@Override
public void initialize(ServiceExtensionContext context) {
getResourceUri("document" + File.separator + "credentials.v2.jsonld")
.onSuccess(uri -> jsonLdService.registerCachedDocument("https://www.w3.org/2018/credentials/v2", uri))
.onFailure(failure -> context.getMonitor().warning("Failed to register cached json-ld document: " + failure.getFailureDetail()));

getResourceUri("document" + File.separator + "credentials.v1.jsonld")
.onSuccess(uri -> jsonLdService.registerCachedDocument("https://www.w3.org/2018/credentials/v1", uri))
.onFailure(failure -> context.getMonitor().warning("Failed to register cached json-ld document: " + failure.getFailureDetail()));

typeTransformerRegistry.register(new JsonObjectToCredentialStatusTransformer());
}

@NotNull
private Result<URI> getResourceUri(String name) {
var uri = getClass().getClassLoader().getResource(name);
if (uri == null) {
return Result.failure(format("Cannot find resource %s", name));
}

try {
return Result.success(uri.toURI());
} catch (URISyntaxException e) {
return Result.failure(format("Cannot read resource %s: %s", name, e.getMessage()));
}
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,44 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

package org.eclipse.edc.iam.identitytrust.transform.to;

import jakarta.json.JsonObject;
import org.eclipse.edc.identitytrust.model.CredentialStatus;
import org.eclipse.edc.jsonld.spi.transformer.AbstractJsonLdTransformer;
import org.eclipse.edc.transform.spi.TransformerContext;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.HashMap;

import static org.eclipse.edc.identitytrust.model.CredentialStatus.CREDENTIAL_STATUS_TYPE_PROPERTY;

public class JsonObjectToCredentialStatusTransformer extends AbstractJsonLdTransformer<JsonObject, CredentialStatus> {
public JsonObjectToCredentialStatusTransformer() {
super(JsonObject.class, CredentialStatus.class);
}

@Override
public @Nullable CredentialStatus transform(@NotNull JsonObject jsonObject, @NotNull TransformerContext context) {


var props = new HashMap<String, Object>();
var id = nodeId(jsonObject);
var type = transformString(jsonObject.get(CREDENTIAL_STATUS_TYPE_PROPERTY), context);
visitProperties(jsonObject, (s, jsonValue) -> props.put(s, transformGenericProperty(jsonValue, context)));

return new CredentialStatus(id, type, props);
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

package org.eclipse.edc.iam.identitytrust.transform.to;

import jakarta.json.JsonObject;
import org.eclipse.edc.identitytrust.model.CredentialSubject;
import org.eclipse.edc.jsonld.spi.transformer.AbstractJsonLdTransformer;
import org.eclipse.edc.transform.spi.TransformerContext;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class JsonObjectToCredentialSubjectTransformer extends AbstractJsonLdTransformer<JsonObject, CredentialSubject> {
public JsonObjectToCredentialSubjectTransformer() {
super(JsonObject.class, CredentialSubject.class);
}

@Override
public @Nullable CredentialSubject transform(@NotNull JsonObject jsonObject, @NotNull TransformerContext context) {
var builder = CredentialSubject.Builder.newInstance();

visitProperties(jsonObject, (s, jsonValue) -> {
if (s.equals(CredentialSubject.CREDENTIAL_SUBJECT_ID_PROPERTY)) {
builder.id(transformString(jsonValue, context));
} else {
builder.claim(s, transformGenericProperty(jsonValue, context));
}
});

return builder.build();
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,90 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

package org.eclipse.edc.iam.identitytrust.transform.to;

import jakarta.json.JsonObject;
import jakarta.json.JsonValue;
import org.eclipse.edc.identitytrust.model.CredentialStatus;
import org.eclipse.edc.identitytrust.model.CredentialSubject;
import org.eclipse.edc.identitytrust.model.VerifiableCredential;
import org.eclipse.edc.jsonld.spi.JsonLdKeywords;
import org.eclipse.edc.jsonld.spi.transformer.AbstractJsonLdTransformer;
import org.eclipse.edc.transform.spi.TransformerContext;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.time.Instant;

import static org.eclipse.edc.identitytrust.model.VerifiableCredential.Builder;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_DESCRIPTION_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_EXPIRATIONDATE_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_ISSUANCEDATE_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_ISSUER_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_NAME_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_STATUS_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_SUBJECT_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_VALIDFROM_PROPERTY;
import static org.eclipse.edc.identitytrust.model.VerifiableCredential.VERIFIABLE_CREDENTIAL_VALIDUNTIL_PROPERTY;

/**
* Transforms a JSON-LD structure into a {@link VerifiableCredential}.
* Note that keeping a raw form of the JSON-LD for verification purposes is highly recommended.
*/
public class JsonObjectToVerifiableCredentialTransformer extends AbstractJsonLdTransformer<JsonObject, VerifiableCredential> {

public JsonObjectToVerifiableCredentialTransformer() {
super(JsonObject.class, VerifiableCredential.class);
}

@Override
public @Nullable VerifiableCredential transform(@NotNull JsonObject jsonObject, @NotNull TransformerContext context) {

var vcBuilder = Builder.newInstance();
vcBuilder.id(nodeId(jsonObject));
transformArrayOrObject(jsonObject.get(JsonLdKeywords.TYPE), Object.class, o -> vcBuilder.type(o.toString()), context);

visitProperties(jsonObject, (s, jsonValue) -> transformProperties(s, jsonValue, vcBuilder, context));
return vcBuilder.build();
}

private void transformProperties(String key, JsonValue jsonValue, Builder vcBuilder, TransformerContext context) {
switch (key) {
case VERIFIABLE_CREDENTIAL_DESCRIPTION_PROPERTY ->
vcBuilder.description(transformString(jsonValue, context));
case VERIFIABLE_CREDENTIAL_ISSUER_PROPERTY -> vcBuilder.issuer(parseIssuer(jsonValue, context));
case VERIFIABLE_CREDENTIAL_VALIDFROM_PROPERTY, VERIFIABLE_CREDENTIAL_ISSUANCEDATE_PROPERTY ->
vcBuilder.issuanceDate(parseDate(jsonValue, context));
case VERIFIABLE_CREDENTIAL_VALIDUNTIL_PROPERTY, VERIFIABLE_CREDENTIAL_EXPIRATIONDATE_PROPERTY ->
vcBuilder.expirationDate(parseDate(jsonValue, context));
case VERIFIABLE_CREDENTIAL_STATUS_PROPERTY ->
vcBuilder.credentialStatus(transformObject(jsonValue, CredentialStatus.class, context));
case VERIFIABLE_CREDENTIAL_SUBJECT_PROPERTY ->
vcBuilder.credentialSubject(transformArray(jsonValue, CredentialSubject.class, context));
case VERIFIABLE_CREDENTIAL_NAME_PROPERTY -> vcBuilder.name(transformString(jsonValue, context));

default ->
context.reportProblem("Unknown property: %s type: %s".formatted(key, jsonValue.getValueType().name()));
}
}

private Instant parseDate(JsonValue jsonValue, TransformerContext context) {
var str = transformString(jsonValue, context);
return Instant.parse(str);
}

private Object parseIssuer(JsonValue jsonValue, TransformerContext context) {
return transformString(jsonValue, context); //todo: handle the case where the issuer is an object
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,67 @@
/*
* Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation
*
*/

package org.eclipse.edc.iam.identitytrust.transform.to;

import jakarta.json.JsonArray;
import jakarta.json.JsonObject;
import jakarta.json.JsonValue;
import org.eclipse.edc.identitytrust.model.VerifiableCredential;
import org.eclipse.edc.identitytrust.model.VerifiablePresentation;
import org.eclipse.edc.jsonld.spi.JsonLdKeywords;
import org.eclipse.edc.jsonld.spi.transformer.AbstractJsonLdTransformer;
import org.eclipse.edc.transform.spi.TransformerContext;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class JsonObjectToVerifiablePresentationTransformer extends AbstractJsonLdTransformer<JsonObject, VerifiablePresentation> {
public JsonObjectToVerifiablePresentationTransformer() {
super(JsonObject.class, VerifiablePresentation.class);
}

@Override
public @Nullable VerifiablePresentation transform(@NotNull JsonObject jsonObject, @NotNull TransformerContext context) {
var vcBuilder = VerifiablePresentation.Builder.newInstance();
vcBuilder.id(nodeId(jsonObject));
transformArrayOrObject(jsonObject.get(JsonLdKeywords.TYPE), Object.class, o -> vcBuilder.type(o.toString()), context);

visitProperties(jsonObject, (s, jsonValue) -> transformProperties(s, jsonValue, vcBuilder, context));
return vcBuilder.build();
}

private void transformProperties(String key, JsonValue jsonValue, VerifiablePresentation.Builder vpBuilder, TransformerContext context) {
switch (key) {
case VerifiablePresentation.VERIFIABLE_PRESENTATION_HOLDER_PROPERTY ->
vpBuilder.holder(transformString(jsonValue, context));
case VerifiablePresentation.VERIFIABLE_PRESENTATION_VC_PROPERTY ->
transformCredential(jsonValue, vpBuilder, context);
default ->
context.reportProblem("Unknown property: %s type: %s".formatted(key, jsonValue.getValueType().name()));
}
}

/**
* Credentials appear to be defined as "@graph", so thats what they're expanded to.
*/
private void transformCredential(JsonValue jsonValue, VerifiablePresentation.Builder vpBuilder, TransformerContext context) {
if (jsonValue instanceof JsonArray) {
var content = ((JsonArray) jsonValue).get(0);
if (content instanceof JsonObject) {
var credArray = ((JsonObject) content).getJsonArray(JsonLdKeywords.GRAPH);
transformArrayOrObject(credArray, VerifiableCredential.class, vpBuilder::credential, context);

}
}
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
org.eclipse.edc.iam.identitytrust.IdentityTrustTransformExtension
Loading
Loading