iterate any attribute in multi-valued RDN to find the correct one (#14283)

Closes #14280

core/src/test/java/org/keycloak/authentication/x509/CertificateIdentityExtractorTest.java

@@ -21,7 +21,9 @@ package org.keycloak.authentication.x509;
 
 import java.io.InputStream;
 import java.nio.charset.Charset;
+import java.security.Principal;
 import java.security.cert.X509Certificate;
+import java.util.function.Function;
 
 import org.junit.Assert;
 import org.junit.ClassRule;
@@ -40,9 +42,12 @@ public abstract class CertificateIdentityExtractorTest {
     @ClassRule
     public static CryptoInitRule cryptoInitRule = new CryptoInitRule();
 
+    private static final String UPN_CERT_PATH = "/certs/UPN-cert.pem";
+    private static final String ANS_CERT_PATH = "/certs/ANS-cert.pem";
+
     @Test
     public void testExtractsCertInPemFormat() throws Exception {
-        X509Certificate x509Certificate = getCertificate();
+        X509Certificate x509Certificate = getCertificate(UPN_CERT_PATH);
 
         String certificatePem = PemUtils.encodeCertificate(x509Certificate);
 
@@ -56,7 +61,7 @@ public abstract class CertificateIdentityExtractorTest {
 
     @Test
     public void testExtractsCertInSubjectDNFormat() throws Exception {
-        X509Certificate x509Certificate = getCertificate();
+        X509Certificate x509Certificate = getCertificate(UPN_CERT_PATH);
 
         UserIdentityExtractor extractor = CryptoIntegration.getProvider().getIdentityExtractorProvider().getX500NameExtractor("CN", certs -> {
             return certs[0].getSubjectX500Principal();
@@ -69,7 +74,7 @@ public abstract class CertificateIdentityExtractorTest {
     public void testX509SubjectAltName_otherName() throws Exception {
         UserIdentityExtractor extractor = CryptoIntegration.getProvider().getIdentityExtractorProvider().getSubjectAltNameExtractor(0);
 
-        X509Certificate cert = getCertificate();
+        X509Certificate cert = getCertificate(UPN_CERT_PATH);
 
         Object upn = extractor.extractUserIdentity(new X509Certificate[] { cert});
         Assert.assertEquals("test-user@some-company-domain", upn);
@@ -80,18 +85,34 @@ public abstract class CertificateIdentityExtractorTest {
     public void testX509SubjectAltName_email() throws Exception {
         UserIdentityExtractor extractor = CryptoIntegration.getProvider().getIdentityExtractorProvider().getSubjectAltNameExtractor(1);
 
-        X509Certificate cert = getCertificate();
+        X509Certificate cert = getCertificate(UPN_CERT_PATH);
 
         Object upn = extractor.extractUserIdentity(new X509Certificate[] { cert});
         Assert.assertEquals("test@somecompany.com", upn);
     }
 
 
-    private X509Certificate getCertificate() throws Exception {
+    private X509Certificate getCertificate(String resourceFilename) throws Exception {
-        InputStream is = getClass().getResourceAsStream("/certs/UPN-cert.pem");
+        InputStream is = getClass().getResourceAsStream(resourceFilename);
 
         String s = StreamUtil.readString(is, Charset.defaultCharset());
 
         return PemUtils.decodeCertificate(s);
     }
+
+
+    private static final Function<X509Certificate[], Principal> subject = certs -> {
+        return certs[0].getSubjectX500Principal();
+    };
+
+
+    @Test
+    public void testX509SubjectCommonName() throws Exception {
+        UserIdentityExtractor extractor = CryptoIntegration.getProvider().getIdentityExtractorProvider().getX500NameExtractor("CN", subject);
+        X509Certificate cert = getCertificate(ANS_CERT_PATH);
+
+        Object cn = extractor.extractUserIdentity(new X509Certificate[] { cert });
+        Assert.assertEquals("899700252580", cn);
+    }
+
 }

core/src/test/resources/certs/ANS-cert.pem

@@ -0,0 +1,48 @@
+-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

crypto/default/src/main/java/org/keycloak/crypto/def/BCUserIdentityExtractorProvider.java

@@ -24,6 +24,7 @@ import org.bouncycastle.asn1.ASN1ObjectIdentifier;
 import org.bouncycastle.asn1.ASN1Sequence;
 import org.bouncycastle.asn1.ASN1TaggedObject;
 import org.bouncycastle.asn1.DERUTF8String;
+import org.bouncycastle.asn1.x500.AttributeTypeAndValue;
 import org.bouncycastle.asn1.x500.RDN;
 import org.bouncycastle.asn1.x500.X500Name;
 import org.bouncycastle.asn1.x500.style.BCStyle;
@@ -36,9 +37,11 @@ import java.io.ByteArrayInputStream;
 import java.security.Principal;
 import java.security.cert.CertificateParsingException;
 import java.security.cert.X509Certificate;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Optional;
 import java.util.function.Function;
 
 /**
@@ -72,9 +75,21 @@ public class BCUserIdentityExtractorProvider  extends UserIdentityExtractorProvi
                 RDN[] rnds = name.getRDNs(x500NameStyle);
                 if (rnds != null && rnds.length > 0) {
                     RDN cn = rnds[0];
+                    if(cn.isMultiValued()){
+                        AttributeTypeAndValue[] attributeTypeAndValues = cn.getTypesAndValues();
+                        Optional<AttributeTypeAndValue> optionalFirst = Arrays.stream(attributeTypeAndValues).filter(attributeTypeAndValue -> attributeTypeAndValue.getType().getId().equals(x500NameStyle.getId())).findFirst();
+                        if(optionalFirst.isPresent()) {
+                            return IETFUtils.valueToString(optionalFirst.get().getValue());
+                        }
+                        else {
+                            return null;
+                        }
+                    }
+                    else {
                         return IETFUtils.valueToString(cn.getFirst().getValue());
                     }
                 }
+            }
             return null;
         }
     }

crypto/fips1402/src/main/java/org/keycloak/crypto/fips/BCFIPSUserIdentityExtractorProvider.java

@@ -24,6 +24,7 @@ import org.bouncycastle.asn1.ASN1ObjectIdentifier;
 import org.bouncycastle.asn1.ASN1Sequence;
 import org.bouncycastle.asn1.ASN1TaggedObject;
 import org.bouncycastle.asn1.DERUTF8String;
+import org.bouncycastle.asn1.x500.AttributeTypeAndValue;
 import org.bouncycastle.asn1.x500.RDN;
 import org.bouncycastle.asn1.x500.X500Name;
 import org.bouncycastle.asn1.x500.style.BCStyle;
@@ -36,9 +37,11 @@ import java.io.ByteArrayInputStream;
 import java.security.Principal;
 import java.security.cert.CertificateParsingException;
 import java.security.cert.X509Certificate;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Optional;
 import java.util.function.Function;
 
 /**
@@ -72,9 +75,21 @@ public class BCFIPSUserIdentityExtractorProvider  extends UserIdentityExtractorP
                 RDN[] rnds = name.getRDNs(x500NameStyle);
                 if (rnds != null && rnds.length > 0) {
                     RDN cn = rnds[0];
+                    if(cn.isMultiValued()){
+                        AttributeTypeAndValue[] attributeTypeAndValues = cn.getTypesAndValues();
+                        Optional<AttributeTypeAndValue> optionalFirst = Arrays.stream(attributeTypeAndValues).filter(attributeTypeAndValue -> attributeTypeAndValue.getType().getId().equals(x500NameStyle.getId())).findFirst();
+                        if(optionalFirst.isPresent()) {
+                            return IETFUtils.valueToString(optionalFirst.get().getValue());
+                        }
+                        else {
+                            return null;
+                        }
+                    }
+                    else {
                         return IETFUtils.valueToString(cn.getFirst().getValue());
                     }
                 }
+            }
             return null;
         }
     }