| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.drill.common.logical.security; |
| |
| import com.fasterxml.jackson.annotation.JsonCreator; |
| import com.fasterxml.jackson.annotation.JsonIgnore; |
| import com.fasterxml.jackson.annotation.JsonInclude; |
| import com.fasterxml.jackson.annotation.JsonInclude.Include; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| |
| import org.apache.drill.common.PlanStringBuilder; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Optional; |
| |
| /** |
| * Implementation of {@link CredentialsProvider} that holds credentials provided by user. |
| * <p> |
| * Its constructor accepts a map with credential names as keys and values as corresponding credential values. |
| */ |
| public class PlainCredentialsProvider implements CredentialsProvider { |
| private static final Logger logger = LoggerFactory.getLogger(PlainCredentialsProvider.class); |
| public static final CredentialsProvider EMPTY_CREDENTIALS_PROVIDER = |
| new PlainCredentialsProvider(Collections.emptyMap()); |
| |
| private final Map<String, String> credentials; |
| private final Map<String, Map<String, String>> userCredentials; |
| |
| public PlainCredentialsProvider(Map<String, String> credentials) { |
| this(credentials, new HashMap<>()); |
| } |
| |
| @JsonCreator |
| public PlainCredentialsProvider( |
| @JsonProperty("credentials") Map<String, String> credentials, |
| @JsonProperty("userCredentials") Map<String, Map<String, String>> userCredentials |
| ) { |
| this.credentials = Optional.ofNullable(credentials).orElse(new HashMap<>()); |
| this.userCredentials = Optional.ofNullable(userCredentials).orElse(new HashMap<>()); |
| } |
| |
| @JsonIgnore |
| public PlainCredentialsProvider(String username, Map<String, String> credentials) { |
| this.credentials = new HashMap<>(); |
| this.userCredentials = new HashMap<>(); |
| userCredentials.put(username,credentials); |
| } |
| |
| @Override |
| @JsonIgnore(false) |
| @JsonProperty("credentials") public Map<String, String> getCredentials() { |
| return credentials; |
| } |
| |
| @JsonProperty("userCredentials") |
| @JsonInclude(Include.NON_NULL) |
| public Map<String, Map<String, String>> getUserCredentials() { |
| return userCredentials; |
| } |
| |
| /** |
| * Returns the credentials for a given query user. If that user does not have credentials, |
| * the function will add an entry for that user with keys username, password which are both null. |
| * @param queryUser A String of the currently logged in user |
| * @return A Map of the active user's credentials |
| */ |
| @Override |
| public Map<String, String> getCredentials(String queryUser) { |
| assert queryUser != null; |
| logger.debug("Getting credentials for query user {}", queryUser); |
| |
| return userCredentials.getOrDefault(queryUser, new HashMap<>()); |
| } |
| |
| @Override |
| public void setUserCredentials(String username, String password, String queryUser) { |
| assert queryUser != null; |
| logger.debug("Setting credentials for query user {}", queryUser); |
| |
| Map<String, String> creds = userCredentials.computeIfAbsent( |
| queryUser, |
| c -> new HashMap<String, String>() |
| ); |
| creds.put("username", username); |
| creds.put("password", password); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| PlainCredentialsProvider that = (PlainCredentialsProvider) o; |
| return Objects.equals(credentials, that.credentials) && |
| Objects.equals(userCredentials, that.userCredentials); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(credentials, userCredentials); |
| } |
| |
| @Override |
| public String toString() { |
| return new PlanStringBuilder(this) |
| .field("credentials", credentials) |
| .field("userCredentials", userCredentials) |
| .toString(); |
| } |
| } |