Implementation of @CreatedBy and @UpdatedBy

security-annotations/build.gradle.kts

@@ -3,4 +3,5 @@ plugins {
 }
 dependencies {
     compileOnly("io.micronaut:micronaut-core-processor")
+    compileOnly(mnData.micronaut.data.model)
 }

security-annotations/src/main/java/io/micronaut/security/annotation/CreatedBy.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.security.annotation;
+
+import io.micronaut.data.annotation.AutoPopulated;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * An annotation for use with Micronaut Data entities that will cause the annotated field to be automatically
+ * populated on save with the identity of the currently authenticated user.
+ *
+ * @author Jeremy Grelle
+ * @since 4.5.0
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD, ElementType.FIELD})
+@Documented
+@AutoPopulated(updateable = false)
+public @interface CreatedBy {
+}

security-annotations/src/main/java/io/micronaut/security/annotation/UpdatedBy.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.security.annotation;
+
+import io.micronaut.data.annotation.AutoPopulated;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * An annotation for use with Micronaut Data entities that will cause the annotated field to be automatically
+ * populated on both save and update with the identity of the currently authenticated user.
+ *
+ * @author Jeremy Grelle
+ * @since 4.5.0
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD, ElementType.FIELD})
+@Documented
+@AutoPopulated
+public @interface UpdatedBy {
+}

security/build.gradle.kts

@@ -14,11 +14,14 @@ dependencies {
     api(projects.micronautSecurityAnnotations)
     implementation(mnValidation.micronaut.validation)
     implementation(mnReactor.micronaut.reactor)
-
+    compileOnly(mnData.micronaut.data.runtime)
     compileOnly(mn.micronaut.http.server)
     compileOnly(mn.micronaut.management)
     compileOnly(mn.jackson.databind)
-
+    testCompileOnly(mnData.micronaut.data.processor)
+    testImplementation(mnSql.h2)
+    testImplementation(mnSql.micronaut.jdbc.hikari)
+    testImplementation(mnData.micronaut.data.jdbc)
     testImplementation(mnSerde.micronaut.serde.jackson)
     testImplementation(mnReactor.micronaut.reactor)
     testImplementation(mn.micronaut.management)

security/src/main/java/io/micronaut/security/audit/UserAuditingEntityEventListener.java

@@ -0,0 +1,129 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.security.audit;
+
+import io.micronaut.context.annotation.Requires;
+import io.micronaut.core.annotation.AnnotationMetadata;
+import io.micronaut.core.annotation.NonNull;
+import io.micronaut.core.annotation.Nullable;
+import io.micronaut.core.beans.BeanProperty;
+import io.micronaut.core.convert.ConversionService;
+import io.micronaut.core.convert.exceptions.ConversionErrorException;
+import io.micronaut.data.annotation.AutoPopulated;
+import io.micronaut.data.annotation.event.PrePersist;
+import io.micronaut.data.annotation.event.PreUpdate;
+import io.micronaut.data.event.EntityEventContext;
+import io.micronaut.data.model.runtime.RuntimePersistentProperty;
+import io.micronaut.data.runtime.event.listeners.AutoPopulatedEntityEventListener;
+import io.micronaut.security.annotation.CreatedBy;
+import io.micronaut.security.annotation.UpdatedBy;
+import io.micronaut.security.authentication.Authentication;
+import io.micronaut.security.utils.SecurityService;
+import jakarta.inject.Singleton;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.lang.annotation.Annotation;
+import java.util.*;
+import java.util.function.Predicate;
+
+/**
+ * An event listener that handles auto-population of entity fields annotated with {@link CreatedBy} or
+ * {@link UpdatedBy} by mapping them from the current {@link Authentication}.
+ *
+ * @author Jeremy Grelle
+ * @since 4.5.0
+ */
+@Requires(classes = { AutoPopulatedEntityEventListener.class, EntityEventContext.class })
+@Singleton
+public class UserAuditingEntityEventListener extends AutoPopulatedEntityEventListener {
+    private static final Logger LOG = LoggerFactory.getLogger(UserAuditingEntityEventListener.class);
+
+    private final SecurityService securityService;
+
+    private final ConversionService conversionService;
+
+    UserAuditingEntityEventListener(SecurityService securityService, ConversionService conversionService) {
+        this.securityService = securityService;
+        this.conversionService = conversionService;
+    }
+
+    @Override
+    public boolean prePersist(@NonNull EntityEventContext<Object> context) {
+        return populate(context, PrePersist.class);
+    }
+
+    @Override
+    public boolean preUpdate(@NonNull EntityEventContext<Object> context) {
+        return populate(context, PreUpdate.class);
+    }
+
+    @Override
+    protected @NonNull List<Class<? extends Annotation>> getEventTypes() {
+        return Arrays.asList(PrePersist.class, PreUpdate.class);
+    }
+
+    @Override
+    protected @NonNull Predicate<RuntimePersistentProperty<Object>> getPropertyPredicate() {
+        return property -> {
+            final AnnotationMetadata annotationMetadata = property.getAnnotationMetadata();
+            return annotationMetadata.hasAnnotation(CreatedBy.class) || annotationMetadata.hasAnnotation(UpdatedBy.class);
+        };
+    }
+
+    private boolean populate(@NonNull EntityEventContext<Object> context,
+                          @NonNull Class<? extends Annotation> listenerAnnotation) {
+        try {
+            securityService.getAuthentication().ifPresent(authentication -> {
+                Map<Class<?>, Object> valueForType = new HashMap<>();
+                for (RuntimePersistentProperty<Object> persistentProperty : getApplicableProperties(context.getPersistentEntity())) {
+                    if (shouldSetProperty(persistentProperty, listenerAnnotation)) {
+                        final BeanProperty<Object, Object> beanProperty = persistentProperty.getProperty();
+                        Object value = valueForType.computeIfAbsent(beanProperty.getType(), type -> convert(authentication, beanProperty));
+                        if (value != null) {
+                            context.setProperty(beanProperty, value);
+                        }
+                    }
+                }
+            });
+            return true;
+        } catch (ConversionErrorException e) {
+            return false;
+        }
+    }
+
+    @Nullable
+    private Object convert(@NonNull Authentication authentication, @NonNull BeanProperty<Object, Object> beanProperty) throws ConversionErrorException {
+        try {
+            return conversionService.convertRequired(authentication, beanProperty.getType());
+        } catch (ConversionErrorException e) {
+            if (LOG.isErrorEnabled()) {
+                LOG.error("Cannot convert from {} to {} for bean property {}", authentication.getClass().getSimpleName(), beanProperty.getType(), beanProperty.getName(), e);
+            }
+            throw e;
+        }
+    }
+
+    private boolean shouldSetProperty(@NonNull RuntimePersistentProperty<Object> persistentProperty, Class<? extends Annotation> listenerAnnotation) {
+        if (listenerAnnotation == PrePersist.class) {
+            return true;
+        }
+        if (listenerAnnotation == PreUpdate.class) {
+            return persistentProperty.getAnnotationMetadata().booleanValue(AutoPopulated.class, AutoPopulated.UPDATEABLE).orElse(true);
+        }
+        return false;
+    }
+}

security/src/main/java/io/micronaut/security/audit/package-info.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Contains classes specific to adding security auditing integration with Micronaut Data.
+ *
+ * @author Jeremy Grelle
+ * @since 4.5.0
+ */
+package io.micronaut.security.audit;

security/src/main/java/io/micronaut/security/converters/PrincipalToStringConverter.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.security.converters;
+
+import io.micronaut.core.annotation.Internal;
+import io.micronaut.core.convert.ConversionContext;
+import io.micronaut.core.convert.TypeConverter;
+import io.micronaut.security.annotation.CreatedBy;
+import io.micronaut.security.annotation.UpdatedBy;
+import io.micronaut.security.authentication.Authentication;
+
+import java.security.Principal;
+import java.util.Optional;
+
+/**
+ * A {@link Principal} to {@code String} converter.
+ *
+ * This is intended as the default implementation for conversion of the current {@link Authentication} to {@code String}
+ * entity fields annotated with either {@link CreatedBy} or {@link UpdatedBy},
+ * and simply converts to {@link Principal#getName()}.
+ * This implementation may be replaced for custom mapping of a unique {@link String} identifier, or additional converters
+ * may be provided for mapping to more complex types.
+ *
+ * @author Jeremy Grelle
+ * @since 4.5.0
+ */
+@Internal
+public class PrincipalToStringConverter implements TypeConverter<Principal, String> {
+
+    /**
+     *
+     * @param principal  The source principal
+     * @param targetType The target type being converted to
+     * @param context    The {@link ConversionContext}
+     * @return The converted type or empty if the conversion is not possible
+     */
+    @Override
+    public Optional<String> convert(Principal principal, Class<String> targetType, ConversionContext context) {
+        return Optional.ofNullable(principal.getName());
+    }
+}

security/src/main/java/io/micronaut/security/converters/SecurityTypeConvertersRegistrar.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2017-2024 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.security.converters;
+
+import io.micronaut.core.annotation.Internal;
+import io.micronaut.core.convert.MutableConversionService;
+import io.micronaut.core.convert.TypeConverterRegistrar;
+
+import java.security.Principal;
+
+/**
+ * Registers security {@link io.micronaut.core.convert.TypeConverter}s.
+ * @author Sergio del Amo
+ * @since 4.5.0
+ */
+@Internal
+public final class SecurityTypeConvertersRegistrar implements TypeConverterRegistrar {
+    @Override
+    public void register(MutableConversionService conversionService) {
+        conversionService.addConverter(Principal.class, String.class, new PrincipalToStringConverter());
+    }
+}

security/src/main/java/io/micronaut/security/converters/package-info.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2017-2024 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Security {@link io.micronaut.core.convert.TypeConverter}s.
+ */
+package io.micronaut.security.converters;

security/src/main/resources/META-INF/services/io.micronaut.core.convert.TypeConverterRegistrar

@@ -0,0 +1 @@
+io.micronaut.security.converters.SecurityTypeConvertersRegistrar