io.alauda.devops.client.dsl.internal.RoleBindingOperationsImpl Maven / Gradle / Ivy

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/**
 * Copyright (C) 2018 Alauda
 *
 * 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
 *
 *         http://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.alauda.devops.client.dsl.internal;

import io.alauda.kubernetes.api.builder.TypedVisitor;
import io.alauda.kubernetes.api.model.ObjectReference;
import io.alauda.kubernetes.api.model.ObjectReferenceBuilder;
import io.alauda.kubernetes.client.KubernetesClientException;
import io.alauda.kubernetes.client.dsl.Resource;
import io.fabric8.openshift.api.model.DoneableRoleBinding;
import io.fabric8.openshift.api.model.RoleBinding;
import io.fabric8.openshift.api.model.RoleBindingBuilder;
import io.fabric8.openshift.api.model.RoleBindingList;
import io.alauda.devops.client.AlaudaDevOpsConfig;
import okhttp3.OkHttpClient;

import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.ExecutionException;

import static io.alauda.devops.client.AlaudaAPIGroups.AUTHORIZATION;

public class RoleBindingOperationsImpl extends AlaudaOperation> {
  public RoleBindingOperationsImpl(OkHttpClient client, AlaudaDevOpsConfig config, String namespace) {
    this(client, config, null, namespace, null, true, null, null, false, -1, new TreeMap(), new TreeMap(), new TreeMap(), new TreeMap(), new TreeMap());
  }

  public RoleBindingOperationsImpl(OkHttpClient client, AlaudaDevOpsConfig config, String apiVersion, String namespace, String name, Boolean cascading, RoleBinding item, String resourceVersion, Boolean reloadingFromServer, long gracePeriodSeconds, Map labels, Map labelsNot, Map labelsIn, Map labelsNotIn, Map fields) {
    super(client, AlaudaOperation.withApiGroup(client, AUTHORIZATION, apiVersion, config), "rolebindings", namespace, name, cascading, item, resourceVersion, reloadingFromServer, gracePeriodSeconds, labels, labelsNot, labelsIn, labelsNotIn, fields);
  }

  @Override
  public RoleBinding replace(RoleBinding item) {
    RoleBinding enriched = enrichRoleBinding(item);
    return super.replace(enriched);
  }

  @Override
  public RoleBinding patch(RoleBinding item) {
    RoleBinding enriched = enrichRoleBinding(item);
    return super.patch(enriched);
  }

  @Override
  protected RoleBinding handleCreate(RoleBinding resource) throws ExecutionException, InterruptedException, KubernetesClientException, IOException {
    return super.handleCreate(enrichRoleBinding(resource));
  }

  private RoleBinding enrichRoleBinding(RoleBinding binding) {
    RoleBindingBuilder builder = new RoleBindingBuilder(binding);

    if ((binding.getUserNames() != null && !binding.getUserNames().isEmpty()) ||
      (binding.getGroupNames() != null && !binding.getGroupNames().isEmpty())) {
      enrichFromUsersAndGroups(builder, binding.getUserNames(), binding.getGroupNames());
    } else {
      enrichFromSubjects(builder, binding.getSubjects());
      enrichSubjectsNamespace(builder);
    }

    return builder.build();
  }

  private void enrichSubjectsNamespace(RoleBindingBuilder builder) {
    builder.accept(new TypedVisitor() {
      @Override
      public void visit(ObjectReferenceBuilder o) {
        if (o.getKind() != null && o.getKind().equals("ServiceAccount") && (o.getNamespace() == null || o.getNamespace().isEmpty())) {
          o.withNamespace(getNamespace());
        }
      }
    });
  }

  private void enrichFromUsersAndGroups(RoleBindingBuilder builder, List userNames, List groupNames) {
    builder.withSubjects();

    if (userNames != null) {
      for (String userName : userNames) {
        if (userName.startsWith("system:serviceaccount:")) {
          String[] splitUserName = userName.split(":");
          if (splitUserName.length == 4) {
            builder.addNewSubject().withKind("ServiceAccount").withNamespace(splitUserName[2]).withName(splitUserName[3]).endSubject();
            continue;
          }
        }

        builder.addNewSubject().withKind("User").withName(userName).endSubject();
      }
    }

    if (groupNames != null) {
      for (String groupName : groupNames) {
        builder.addNewSubject().withKind("Group").withName(groupName).endSubject();
      }
    }
  }

  private void enrichFromSubjects(RoleBindingBuilder builder, List subjects) {
    for (ObjectReference ref : subjects) {
      switch (ref.getKind()) {
        case "User":
          builder.addToUserNames(ref.getName());
          break;
        case "ServiceAccount":
          String namespace = ref.getNamespace();
          if (namespace == null || namespace.isEmpty()) {
            namespace = getNamespace();
          }
          builder.addToUserNames("system:serviceaccount:" + namespace + ":" + ref.getName());
          break;
        case "Group":
          builder.addToGroupNames(ref.getName());
          break;
      }
    }
  }
}