[GitHub] [incubator-druid] nishantmonu51 commented on a change in pull request #8248: Add TrustedDomain Authenticator

[GitBox <gi...@apache.org>]

nishantmonu51 commented on a change in pull request #8248: Add TrustedDomain Authenticator
URL: https://github.com/apache/incubator-druid/pull/8248#discussion_r319819341
 
 

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 File path: server/src/main/java/org/apache/druid/server/security/TrustedDomainAuthenticator.java
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 @@ -0,0 +1,164 @@
+/*
+ * 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.druid.server.security;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Strings;
+import org.apache.druid.java.util.common.logger.Logger;
+
+import javax.annotation.Nullable;
+import javax.servlet.DispatcherType;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+import java.io.IOException;
+import java.util.EnumSet;
+import java.util.Map;
+
+/**
+ * Authenticates requests coming from a specific domain and directs them to an authorizer.
+ */
+@JsonTypeName(AuthConfig.TRUSTED_DOMAIN_NAME)
+public class TrustedDomainAuthenticator implements Authenticator
+{
+  private static final Logger LOGGER = new Logger(TrustedDomainAuthenticator.class);
+  private static final String DEFAULT_IDENTITY = "defaultUser";
+  private static final String X_FORWARDED_FOR = "X-Forwarded-For";
+
+  private static final boolean DEFAULT_USE_FORWARDED_HEADERS = false;
+  private final AuthenticationResult authenticationResult;
+  private final String domain;
+  private final boolean useForwardedHeaders;
+
+  @JsonCreator
+  public TrustedDomainAuthenticator(
+      @JsonProperty("name") String name,
+      @JsonProperty("domain") String domain,
+      @JsonProperty("useForwardedHeaders") Boolean useForwardedHeaders,
+      @JsonProperty("authorizerName") String authorizerName,
+      @JsonProperty("identity") String identity
+  )
+  {
+    Preconditions.checkArgument(!Strings.isNullOrEmpty(domain), "Invalid domain name %s", domain);
+    this.domain = domain;
+    this.useForwardedHeaders = useForwardedHeaders == null ? DEFAULT_USE_FORWARDED_HEADERS : useForwardedHeaders;
+    this.authenticationResult = new AuthenticationResult(
+        identity == null ? DEFAULT_IDENTITY : identity,
+        authorizerName,
+        name,
+        null
+    );
+  }
+
+  @Override
+  public Class<? extends Filter> getFilterClass()
+  {
+    return null;
+  }
+
+  @Override
+  public Map<String, String> getInitParameters()
+  {
+    return null;
 
 Review comment:
   added

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