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feat: refactor IATP Credential validation into separate service (#4107)
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* feat: refactor IATP Credential validation into separate service

* javadoc
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paullatzelsperger authored Apr 11, 2024
1 parent 1648e63 commit bbcdabe
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import org.eclipse.edc.iam.identitytrust.spi.ClaimTokenCreatorFunction;
import org.eclipse.edc.iam.identitytrust.spi.IatpParticipantAgentServiceExtension;
import org.eclipse.edc.iam.identitytrust.spi.SecureTokenService;
import org.eclipse.edc.iam.identitytrust.spi.TrustedIssuerRegistry;
import org.eclipse.edc.iam.identitytrust.spi.scope.ScopeExtractorRegistry;
import org.eclipse.edc.iam.identitytrust.spi.verification.SignatureSuiteRegistry;
import org.eclipse.edc.iam.identitytrust.sts.embedded.EmbeddedSecureTokenService;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.TrustedIssuerRegistry;
import org.eclipse.edc.keys.spi.PrivateKeyResolver;
import org.eclipse.edc.runtime.metamodel.annotation.Extension;
import org.eclipse.edc.runtime.metamodel.annotation.Inject;
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import org.eclipse.edc.iam.identitytrust.spi.CredentialServiceClient;
import org.eclipse.edc.iam.identitytrust.spi.IatpParticipantAgentServiceExtension;
import org.eclipse.edc.iam.identitytrust.spi.SecureTokenService;
import org.eclipse.edc.iam.identitytrust.spi.TrustedIssuerRegistry;
import org.eclipse.edc.iam.identitytrust.spi.validation.TokenValidationAction;
import org.eclipse.edc.iam.identitytrust.spi.verification.PresentationVerifier;
import org.eclipse.edc.iam.identitytrust.spi.verification.SignatureSuiteRegistry;
import org.eclipse.edc.iam.verifiablecredentials.StatusList2021RevocationService;
import org.eclipse.edc.iam.verifiablecredentials.VerifiableCredentialValidationServiceImpl;
import org.eclipse.edc.iam.verifiablecredentials.spi.RevocationListService;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.PresentationVerifier;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.TrustedIssuerRegistry;
import org.eclipse.edc.jsonld.spi.JsonLd;
import org.eclipse.edc.runtime.metamodel.annotation.Extension;
import org.eclipse.edc.runtime.metamodel.annotation.Inject;
Expand Down Expand Up @@ -83,7 +84,7 @@ public class IdentityAndTrustExtension implements ServiceExtension {
private SecureTokenService secureTokenService;

@Inject
private TrustedIssuerRegistry registry;
private TrustedIssuerRegistry trustedIssuerRegistry;

@Inject
private TypeManager typeManager;
Expand Down Expand Up @@ -158,8 +159,12 @@ public IdentityService createIdentityService(ServiceExtensionContext context) {
var credentialServiceUrlResolver = new DidCredentialServiceUrlResolver(didResolverRegistry);
var validationAction = tokenValidationAction();

return new IdentityAndTrustService(secureTokenService, getOwnDid(context), getPresentationVerifier(context),
getCredentialServiceClient(context), validationAction, registry, clock, credentialServiceUrlResolver, claimTokenFunction, createRevocationListService(context));
var credentialValidationService = new VerifiableCredentialValidationServiceImpl(createPresentationVerifier(context),
trustedIssuerRegistry, createRevocationListService(context), clock);

return new IdentityAndTrustService(secureTokenService, getOwnDid(context),
getCredentialServiceClient(context), validationAction, credentialServiceUrlResolver, claimTokenFunction,
credentialValidationService);
}

@Provider
Expand All @@ -172,7 +177,7 @@ public CredentialServiceClient getCredentialServiceClient(ServiceExtensionContex
}

@Provider
public PresentationVerifier getPresentationVerifier(ServiceExtensionContext context) {
public PresentationVerifier createPresentationVerifier(ServiceExtensionContext context) {
if (presentationVerifier == null) {
var mapper = typeManager.getMapper(JSON_LD);

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package org.eclipse.edc.iam.identitytrust.core.defaults;

import org.eclipse.edc.iam.identitytrust.spi.TrustedIssuerRegistry;
import org.eclipse.edc.iam.verifiablecredentials.spi.model.Issuer;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.TrustedIssuerRegistry;

import java.util.Collection;
import java.util.HashMap;
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package org.eclipse.edc.iam.identitytrust.issuer.configuration;

import com.fasterxml.jackson.core.type.TypeReference;
import org.eclipse.edc.iam.identitytrust.spi.TrustedIssuerRegistry;
import org.eclipse.edc.iam.verifiablecredentials.spi.model.Issuer;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.TrustedIssuerRegistry;
import org.eclipse.edc.runtime.metamodel.annotation.Extension;
import org.eclipse.edc.runtime.metamodel.annotation.Inject;
import org.eclipse.edc.runtime.metamodel.annotation.Setting;
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package org.eclipse.edc.iam.identitytrust.issuer.configuration;

import org.eclipse.edc.iam.identitytrust.spi.TrustedIssuerRegistry;
import org.eclipse.edc.iam.verifiablecredentials.spi.model.Issuer;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.TrustedIssuerRegistry;
import org.eclipse.edc.junit.extensions.DependencyInjectionExtension;
import org.eclipse.edc.spi.monitor.Monitor;
import org.eclipse.edc.spi.system.ServiceExtensionContext;
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package org.eclipse.edc.iam.identitytrust.service;

import org.eclipse.edc.iam.identitytrust.service.validation.rules.HasValidIssuer;
import org.eclipse.edc.iam.identitytrust.service.validation.rules.HasValidSubjectIds;
import org.eclipse.edc.iam.identitytrust.service.validation.rules.IsInValidityPeriod;
import org.eclipse.edc.iam.identitytrust.service.validation.rules.IsNotRevoked;
import org.eclipse.edc.iam.identitytrust.spi.ClaimTokenCreatorFunction;
import org.eclipse.edc.iam.identitytrust.spi.CredentialServiceClient;
import org.eclipse.edc.iam.identitytrust.spi.CredentialServiceUrlResolver;
import org.eclipse.edc.iam.identitytrust.spi.SecureTokenService;
import org.eclipse.edc.iam.identitytrust.spi.TrustedIssuerRegistry;
import org.eclipse.edc.iam.identitytrust.spi.validation.TokenValidationAction;
import org.eclipse.edc.iam.identitytrust.spi.verification.PresentationVerifier;
import org.eclipse.edc.iam.verifiablecredentials.spi.RevocationListService;
import org.eclipse.edc.iam.verifiablecredentials.spi.model.Issuer;
import org.eclipse.edc.iam.verifiablecredentials.spi.model.VerifiableCredential;
import org.eclipse.edc.iam.verifiablecredentials.spi.VerifiableCredentialValidationService;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.CredentialValidationRule;
import org.eclipse.edc.spi.iam.ClaimToken;
import org.eclipse.edc.spi.iam.IdentityService;
Expand All @@ -36,12 +28,9 @@
import org.eclipse.edc.spi.iam.VerificationContext;
import org.eclipse.edc.spi.result.Result;
import org.eclipse.edc.util.string.StringUtils;
import org.jetbrains.annotations.NotNull;

import java.time.Clock;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
Expand Down Expand Up @@ -74,14 +63,12 @@ public class IdentityAndTrustService implements IdentityService {
private static final String SCOPE_STRING_REGEX = "(.+):(.+):(read|write|\\*)";
private final SecureTokenService secureTokenService;
private final String myOwnDid;
private final PresentationVerifier presentationVerifier;
private final CredentialServiceClient credentialServiceClient;
private final Function<TokenRepresentation, Result<ClaimToken>> tokenValidationAction;
private final TrustedIssuerRegistry trustedIssuerRegistry;
private final Clock clock;

private final CredentialServiceUrlResolver credentialServiceUrlResolver;
private final ClaimTokenCreatorFunction claimTokenCreatorFunction;
private final RevocationListService revocationListService;
private final VerifiableCredentialValidationService verifiableCredentialValidationService;

/**
* Constructs a new instance of the {@link IdentityAndTrustService}.
Expand All @@ -90,23 +77,18 @@ public class IdentityAndTrustService implements IdentityService {
* @param myOwnDid The DID which belongs to "this connector"
*/
public IdentityAndTrustService(SecureTokenService secureTokenService, String myOwnDid,
PresentationVerifier presentationVerifier, CredentialServiceClient credentialServiceClient,
CredentialServiceClient credentialServiceClient,
TokenValidationAction tokenValidationAction,
TrustedIssuerRegistry trustedIssuerRegistry,
Clock clock,
CredentialServiceUrlResolver csUrlResolver,
ClaimTokenCreatorFunction claimTokenCreatorFunction,
RevocationListService revocationListService) {
VerifiableCredentialValidationService verifiableCredentialValidationService) {
this.secureTokenService = secureTokenService;
this.myOwnDid = myOwnDid;
this.presentationVerifier = presentationVerifier;
this.credentialServiceClient = credentialServiceClient;
this.tokenValidationAction = tokenValidationAction;
this.trustedIssuerRegistry = trustedIssuerRegistry;
this.clock = clock;
this.credentialServiceUrlResolver = csUrlResolver;
this.claimTokenCreatorFunction = claimTokenCreatorFunction;
this.revocationListService = revocationListService;
this.verifiableCredentialValidationService = verifiableCredentialValidationService;
}

@Override
Expand Down Expand Up @@ -171,46 +153,21 @@ public Result<ClaimToken> verifyJwtToken(TokenRepresentation tokenRepresentation
}

var presentations = vpResponse.getContent();
var result = presentations.stream().map(verifiablePresentation -> {
var credentials = verifiablePresentation.presentation().getCredentials();
// verify, that the VP and all VPs are cryptographically OK
return presentationVerifier.verifyPresentation(verifiablePresentation)
.compose(u -> validateVerifiableCredentials(credentials, issuer));
}).reduce(Result.success(), Result::merge);

var result = verifiableCredentialValidationService.validate(presentations, getAdditionalValidations());

//todo: at this point we have established what the other participant's DID is, and that it's authentic
// so we need to make sure that `iss == sub == DID`
return result.compose(u -> claimTokenCreatorFunction.apply(presentations.stream().map(p -> p.presentation().getCredentials().stream())
.reduce(Stream.empty(), Stream::concat)
.toList()));
}

@NotNull
private Result<Void> validateVerifiableCredentials(List<VerifiableCredential> credentials, String issuer) {


// in addition, verify that all VCs are valid
var filters = new ArrayList<>(List.of(
new IsInValidityPeriod(clock),
new HasValidSubjectIds(issuer),
new IsNotRevoked(revocationListService),
new HasValidIssuer(getTrustedIssuerIds())));


filters.addAll(getAdditionalValidations());
var results = credentials
.stream()
.map(c -> filters.stream().reduce(t -> Result.success(), CredentialValidationRule::and).apply(c))
.reduce(Result::merge);
return results.orElseGet(() -> failure("Could not determine the status of the VC validation"));
}

private Collection<? extends CredentialValidationRule> getAdditionalValidations() {
return List.of();
}

private List<String> getTrustedIssuerIds() {
return trustedIssuerRegistry.getTrustedIssuers().stream().map(Issuer::id).toList();
}

private Result<Void> validateScope(String scope) {
if (StringUtils.isNullOrBlank(scope)) {
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package org.eclipse.edc.iam.identitytrust.service.verification;

import org.eclipse.edc.iam.identitytrust.spi.verification.CredentialVerifier;
import org.eclipse.edc.iam.identitytrust.spi.verification.PresentationVerifier;
import org.eclipse.edc.iam.identitytrust.spi.verification.VerifierContext;
import org.eclipse.edc.iam.verifiablecredentials.spi.model.VerifiablePresentationContainer;
import org.eclipse.edc.iam.verifiablecredentials.spi.validation.PresentationVerifier;
import org.eclipse.edc.spi.result.Result;

import java.util.List;
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