akramer/digital-credentials-public-validator
akramer/digital-credentials-public-validator
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Refactor probes, extracted out to a generic class

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This commit is contained in:
Xavi Aracil 2022-11-25 08:45:38 +01:00
parent 40b34cce13
commit a46fcbff9a
3 changed files with 58 additions and 28 deletions
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20
inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/ContextPropertyProbe.java
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@ -7,6 +7,7 @@ import static org.oneedtech.inspect.util.code.Defensives.checkNotNull;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.BiFunction;
import org.oneedtech.inspect.core.probe.Probe;
import org.oneedtech.inspect.core.probe.RunContext;
@ -24,32 +25,29 @@ import com.google.common.collect.ImmutableMap;
*
* @author mgylling
*/
public class ContextPropertyProbe extends Probe<JsonNode> {
public class ContextPropertyProbe extends PropertyProbe {
private final VerifiableCredential.Type type;
public ContextPropertyProbe(VerifiableCredential.Type type) {
super(ID);
super(ID, "@context");
this.type = checkNotNull(type);
setValidations(this::validate);
}
@Override
public ReportItems run(JsonNode root, RunContext ctx) throws Exception {
ArrayNode contextNode = (ArrayNode) root.get("@context");
if (contextNode == null) {
return notRun("No @context property", ctx);
}
protected ReportItems reportForNonExistentProperty(RunContext ctx) {
return notRun("No @context property", ctx);
}
public ReportItems validate(List<String> nodeValues, RunContext ctx) {
List<String> expected = values.get(values.keySet()
.stream()
.filter(s->s.contains(type))
.findFirst()
.orElseThrow(()-> new IllegalArgumentException(type.name() + " not recognized")));
List<String> given = JsonNodeUtil.asStringList(contextNode);
int pos = 0;
for (String uri : expected) {
if ((given.size() < pos + 1) || !given.get(pos).equals(uri)) {
if ((nodeValues.size() < pos + 1) || !nodeValues.get(pos).equals(uri)) {
return error("missing required @context uri " + uri + " at position " + (pos + 1), ctx);
}
pos++;

45
inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/PropertyProbe.java Normal file
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@ -0,0 +1,45 @@
package org.oneedtech.inspect.vc.probe;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Predicate;
import org.oneedtech.inspect.core.probe.Probe;
import org.oneedtech.inspect.core.probe.RunContext;
import org.oneedtech.inspect.core.report.ReportItems;
import org.oneedtech.inspect.vc.util.JsonNodeUtil;
import com.fasterxml.jackson.databind.JsonNode;
public class PropertyProbe extends Probe<JsonNode> {
private final String propertyName;
private BiFunction<List<String>, RunContext, ReportItems> validations;
public PropertyProbe(String id, String propertyName) {
super(id);
this.propertyName = propertyName;
this.validations = this::defaultValidation;
}
public void setValidations(BiFunction<List<String>, RunContext, ReportItems> validations) {
this.validations = validations;
}
@Override
public ReportItems run(JsonNode root, RunContext ctx) throws Exception {
JsonNode propertyNode = root.get(propertyName);
if (propertyNode == null) {
return reportForNonExistentProperty(ctx);
}
List<String> values = JsonNodeUtil.asStringList(propertyNode);
return validations.apply(values, ctx);
}
protected ReportItems reportForNonExistentProperty(RunContext ctx) {
return fatal("No " + propertyName + " property", ctx);
}
private ReportItems defaultValidation(List<String> nodeValues, RunContext ctx) {
return notRun("Not additional validations run", ctx);
}
}

21
inspector-vc/src/main/java/org/oneedtech/inspect/vc/probe/TypePropertyProbe.java
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@ -4,38 +4,25 @@ import static org.oneedtech.inspect.util.code.Defensives.checkNotNull;
import java.util.List;
import org.oneedtech.inspect.core.probe.Probe;
import org.oneedtech.inspect.core.probe.RunContext;
import org.oneedtech.inspect.core.report.ReportItems;
import org.oneedtech.inspect.vc.VerifiableCredential;
import org.oneedtech.inspect.vc.VerifiableCredential.Type;
import org.oneedtech.inspect.vc.util.JsonNodeUtil;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
/**
* A Probe that verifies a credential's type property.
*
* @author mgylling
*/
public class TypePropertyProbe extends Probe<JsonNode> {
public class TypePropertyProbe extends PropertyProbe {
private final VerifiableCredential.Type expected;
public TypePropertyProbe(VerifiableCredential.Type expected) {
super(ID);
super(ID, "type");
this.expected = checkNotNull(expected);
this.setValidations(this::validate);
}
@Override
public ReportItems run(JsonNode root, RunContext ctx) throws Exception {
ArrayNode typeNode = (ArrayNode) root.get("type");
if (typeNode == null)
return fatal("No type property", ctx);
List<String> values = JsonNodeUtil.asStringList(typeNode);
public ReportItems validate(List<String> values, RunContext ctx) {
if (!values.contains("VerifiableCredential")) {
return fatal("The type property does not contain the entry 'VerifiableCredential'", ctx);
}