[GitHub] [incubator-pinot] Jackie-Jiang commented on a change in pull request #6552: add optional http basic auth to pinot broker

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

Jackie-Jiang commented on a change in pull request #6552:
URL: https://github.com/apache/incubator-pinot/pull/6552#discussion_r572489919



##########
File path: pinot-broker/src/main/java/org/apache/pinot/broker/broker/BasicAuthAccessControlFactory.java
##########
@@ -0,0 +1,159 @@
+/**
+ * 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.pinot.broker.broker;
+
+import com.google.common.base.Preconditions;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.pinot.broker.api.AccessControl;
+import org.apache.pinot.broker.api.HttpRequesterIdentity;
+import org.apache.pinot.broker.api.RequesterIdentity;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.spi.env.PinotConfiguration;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+
+/**
+ * Basic Authentication based on http headers. Configured via the "pinot.broker.access.control" family of properties.
+ *
+ * <pre>
+ *     Example:
+ *     pinot.broker.access.control.principals=admin123,user456
+ *     pinot.broker.access.control.principals.admin123.password=verysecret
+ *     pinot.broker.access.control.principals.user456.password=kindasecret
+ *     pinot.broker.access.control.principals.user456.tables=stuff,lessImportantStuff
+ * </pre>
+ */
+public class BasicAuthAccessControlFactory extends AccessControlFactory {
+  private static final String PRINCIPALS = "principals";
+  private static final String PASSWORD = "password";
+  private static final String TABLES = "tables";
+  private static final String TABLES_ALL = "*";
+
+  private static final String HEADER_AUTHORIZATION = "authorization";
+
+  private AccessControl _accessControl;
+
+  public BasicAuthAccessControlFactory() {
+    // left blank
+  }
+
+  public void init(PinotConfiguration configuration) {
+    String principalNames = configuration.getProperty(PRINCIPALS);
+    Preconditions.checkArgument(StringUtils.isNotBlank(principalNames), "must provide principals");
+
+    List<BasicAuthPrincipal> principals = Arrays.stream(principalNames.split(",")).map(rawName -> {
+      String name = rawName.trim();
+      Preconditions.checkArgument(StringUtils.isNotBlank(name), "%s is not a valid name", name);
+
+      String password = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, PASSWORD));
+      Preconditions.checkArgument(StringUtils.isNotBlank(password), "must provide a password for %s", name);
+
+      Set<String> tables = new HashSet<>();
+      String tableNames = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, TABLES));
+      if (StringUtils.isNotBlank(tableNames) && !TABLES_ALL.equals(tableNames)) {
+        tables.addAll(Arrays.asList(tableNames.split(",")));
+      }
+
+      return new BasicAuthPrincipal(name, toToken(name, password), tables);
+    }).collect(Collectors.toList());
+
+    _accessControl = new BasicAuthAccessControl(principals);
+  }
+
+  public AccessControl create() {
+    return _accessControl;
+  }
+
+  /**
+   * Access Control using header-based basic http authentication
+   */
+  private static class BasicAuthAccessControl implements AccessControl {
+    private final Map<String, BasicAuthPrincipal> _principals;
+
+    public BasicAuthAccessControl(Collection<BasicAuthPrincipal> principals) {
+      this._principals = principals.stream().collect(Collectors.toMap(BasicAuthPrincipal::getToken, p -> p));

Review comment:
       (nit) remove `this.` Same for other places

##########
File path: pinot-broker/src/main/java/org/apache/pinot/broker/broker/BasicAuthAccessControlFactory.java
##########
@@ -0,0 +1,159 @@
+/**
+ * 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.pinot.broker.broker;
+
+import com.google.common.base.Preconditions;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.pinot.broker.api.AccessControl;
+import org.apache.pinot.broker.api.HttpRequesterIdentity;
+import org.apache.pinot.broker.api.RequesterIdentity;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.spi.env.PinotConfiguration;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+
+/**
+ * Basic Authentication based on http headers. Configured via the "pinot.broker.access.control" family of properties.
+ *
+ * <pre>
+ *     Example:
+ *     pinot.broker.access.control.principals=admin123,user456
+ *     pinot.broker.access.control.principals.admin123.password=verysecret
+ *     pinot.broker.access.control.principals.user456.password=kindasecret
+ *     pinot.broker.access.control.principals.user456.tables=stuff,lessImportantStuff
+ * </pre>
+ */
+public class BasicAuthAccessControlFactory extends AccessControlFactory {
+  private static final String PRINCIPALS = "principals";
+  private static final String PASSWORD = "password";
+  private static final String TABLES = "tables";
+  private static final String TABLES_ALL = "*";
+
+  private static final String HEADER_AUTHORIZATION = "authorization";
+
+  private AccessControl _accessControl;
+
+  public BasicAuthAccessControlFactory() {
+    // left blank
+  }
+
+  public void init(PinotConfiguration configuration) {
+    String principalNames = configuration.getProperty(PRINCIPALS);
+    Preconditions.checkArgument(StringUtils.isNotBlank(principalNames), "must provide principals");
+
+    List<BasicAuthPrincipal> principals = Arrays.stream(principalNames.split(",")).map(rawName -> {
+      String name = rawName.trim();
+      Preconditions.checkArgument(StringUtils.isNotBlank(name), "%s is not a valid name", name);
+
+      String password = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, PASSWORD));
+      Preconditions.checkArgument(StringUtils.isNotBlank(password), "must provide a password for %s", name);
+
+      Set<String> tables = new HashSet<>();
+      String tableNames = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, TABLES));
+      if (StringUtils.isNotBlank(tableNames) && !TABLES_ALL.equals(tableNames)) {
+        tables.addAll(Arrays.asList(tableNames.split(",")));
+      }
+
+      return new BasicAuthPrincipal(name, toToken(name, password), tables);
+    }).collect(Collectors.toList());
+
+    _accessControl = new BasicAuthAccessControl(principals);
+  }
+
+  public AccessControl create() {
+    return _accessControl;
+  }
+
+  /**
+   * Access Control using header-based basic http authentication
+   */
+  private static class BasicAuthAccessControl implements AccessControl {
+    private final Map<String, BasicAuthPrincipal> _principals;
+
+    public BasicAuthAccessControl(Collection<BasicAuthPrincipal> principals) {
+      this._principals = principals.stream().collect(Collectors.toMap(BasicAuthPrincipal::getToken, p -> p));
+    }
+
+    @Override
+    public boolean hasAccess(RequesterIdentity requesterIdentity, BrokerRequest brokerRequest) {
+      Preconditions.checkArgument(requesterIdentity instanceof HttpRequesterIdentity, "HttpRequesterIdentity required");
+      HttpRequesterIdentity identity = (HttpRequesterIdentity) requesterIdentity;
+
+      Collection<String> tokens = identity.getHttpHeaders().get(HEADER_AUTHORIZATION);
+      Optional<BasicAuthPrincipal> principalOpt = tokens.stream().map(BasicAuthAccessControlFactory::normalizeToken)
+              .map(_principals::get).filter(Objects::nonNull).findFirst();
+
+      if (!principalOpt.isPresent()) {
+        // no matching token? reject
+        return false;
+      }
+
+      BasicAuthPrincipal principal = principalOpt.get();
+      if (principal.getTables().isEmpty()
+              || !brokerRequest.isSetQuerySource()
+              || !brokerRequest.getQuerySource().isSetTableName()) {
+        // no table restrictions? accept
+        return true;
+      }
+
+      return principal.getTables().contains(brokerRequest.getQuerySource().getTableName());
+    }
+  }
+
+  /**
+   * Container object for basic auth principal
+   */
+  private static class BasicAuthPrincipal {
+    private final String _name;
+    private final String _token;
+    private final Set<String> _tables;
+
+    public BasicAuthPrincipal(String name, String token, Set<String> tables) {
+      this._name = name;

Review comment:
       (nit) Remove `this.`

##########
File path: pinot-broker/src/test/java/org/apache/pinot/broker/broker/BasicAuthAccessControlTest.java
##########
@@ -0,0 +1,152 @@
+/**
+ * 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.pinot.broker.broker;
+
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.Multimap;
+import org.apache.pinot.broker.api.AccessControl;
+import org.apache.pinot.broker.api.HttpRequesterIdentity;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.common.request.QuerySource;
+import org.apache.pinot.spi.env.PinotConfiguration;
+import org.testng.Assert;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class BasicAuthAccessControlTest {
+    private static final String TOKEN_USER = "Basic dXNlcjpzZWNyZXQ"; // user:secret

Review comment:
       Fix the indentation and the import

##########
File path: pinot-broker/src/main/java/org/apache/pinot/broker/broker/BasicAuthAccessControlFactory.java
##########
@@ -0,0 +1,159 @@
+/**
+ * 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.pinot.broker.broker;
+
+import com.google.common.base.Preconditions;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.pinot.broker.api.AccessControl;
+import org.apache.pinot.broker.api.HttpRequesterIdentity;
+import org.apache.pinot.broker.api.RequesterIdentity;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.spi.env.PinotConfiguration;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+
+/**
+ * Basic Authentication based on http headers. Configured via the "pinot.broker.access.control" family of properties.
+ *
+ * <pre>
+ *     Example:
+ *     pinot.broker.access.control.principals=admin123,user456
+ *     pinot.broker.access.control.principals.admin123.password=verysecret
+ *     pinot.broker.access.control.principals.user456.password=kindasecret
+ *     pinot.broker.access.control.principals.user456.tables=stuff,lessImportantStuff
+ * </pre>
+ */
+public class BasicAuthAccessControlFactory extends AccessControlFactory {
+  private static final String PRINCIPALS = "principals";
+  private static final String PASSWORD = "password";
+  private static final String TABLES = "tables";
+  private static final String TABLES_ALL = "*";
+
+  private static final String HEADER_AUTHORIZATION = "authorization";
+
+  private AccessControl _accessControl;
+
+  public BasicAuthAccessControlFactory() {
+    // left blank
+  }
+
+  public void init(PinotConfiguration configuration) {
+    String principalNames = configuration.getProperty(PRINCIPALS);
+    Preconditions.checkArgument(StringUtils.isNotBlank(principalNames), "must provide principals");
+
+    List<BasicAuthPrincipal> principals = Arrays.stream(principalNames.split(",")).map(rawName -> {
+      String name = rawName.trim();
+      Preconditions.checkArgument(StringUtils.isNotBlank(name), "%s is not a valid name", name);
+
+      String password = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, PASSWORD));
+      Preconditions.checkArgument(StringUtils.isNotBlank(password), "must provide a password for %s", name);
+
+      Set<String> tables = new HashSet<>();
+      String tableNames = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, TABLES));
+      if (StringUtils.isNotBlank(tableNames) && !TABLES_ALL.equals(tableNames)) {
+        tables.addAll(Arrays.asList(tableNames.split(",")));
+      }
+
+      return new BasicAuthPrincipal(name, toToken(name, password), tables);
+    }).collect(Collectors.toList());
+
+    _accessControl = new BasicAuthAccessControl(principals);
+  }
+
+  public AccessControl create() {
+    return _accessControl;
+  }
+
+  /**
+   * Access Control using header-based basic http authentication
+   */
+  private static class BasicAuthAccessControl implements AccessControl {
+    private final Map<String, BasicAuthPrincipal> _principals;
+
+    public BasicAuthAccessControl(Collection<BasicAuthPrincipal> principals) {
+      this._principals = principals.stream().collect(Collectors.toMap(BasicAuthPrincipal::getToken, p -> p));
+    }
+
+    @Override
+    public boolean hasAccess(RequesterIdentity requesterIdentity, BrokerRequest brokerRequest) {
+      Preconditions.checkArgument(requesterIdentity instanceof HttpRequesterIdentity, "HttpRequesterIdentity required");
+      HttpRequesterIdentity identity = (HttpRequesterIdentity) requesterIdentity;
+
+      Collection<String> tokens = identity.getHttpHeaders().get(HEADER_AUTHORIZATION);
+      Optional<BasicAuthPrincipal> principalOpt = tokens.stream().map(BasicAuthAccessControlFactory::normalizeToken)
+              .map(_principals::get).filter(Objects::nonNull).findFirst();
+
+      if (!principalOpt.isPresent()) {
+        // no matching token? reject
+        return false;
+      }
+
+      BasicAuthPrincipal principal = principalOpt.get();
+      if (principal.getTables().isEmpty()
+              || !brokerRequest.isSetQuerySource()
+              || !brokerRequest.getQuerySource().isSetTableName()) {
+        // no table restrictions? accept
+        return true;
+      }
+
+      return principal.getTables().contains(brokerRequest.getQuerySource().getTableName());
+    }
+  }
+
+  /**
+   * Container object for basic auth principal
+   */
+  private static class BasicAuthPrincipal {
+    private final String _name;
+    private final String _token;
+    private final Set<String> _tables;
+
+    public BasicAuthPrincipal(String name, String token, Set<String> tables) {
+      this._name = name;
+      this._token = token;
+      this._tables = tables;
+    }
+
+    public String getName() {
+      return _name;
+    }
+
+    public Set<String> getTables() {
+      return _tables;
+    }
+
+    public String getToken() {
+      return _token;
+    }
+  }
+
+  private static String toToken(String name, String password) {
+    String identifier = String.format("%s:%s", name, password);
+    return normalizeToken(String.format("Basic %s", Base64.getEncoder().encodeToString(identifier.getBytes())));
+  }
+
+  private static String normalizeToken(String token) {
+    if (token == null) {

Review comment:
       token should never be `null`?

##########
File path: pinot-controller/src/main/java/org/apache/pinot/controller/api/resources/PinotQueryResource.java
##########
@@ -210,7 +214,14 @@ public String getQueryResponse(String query, String traceEnabled, String queryOp
     String url = getQueryURL(protocol, hostNameWithPrefix.substring(hostNameWithPrefix.indexOf("_") + 1),
         String.valueOf(port), querySyntax);
     ObjectNode requestJson = getRequestJson(query, traceEnabled, queryOptions, querySyntax);
-    return sendRequestRaw(url, query, requestJson);
+
+    // forward client-supplied headers
+    Map<String, String> headers = httpHeaders.getRequestHeaders().entrySet().stream()
+        .filter(entry -> !entry.getValue().isEmpty())
+        .map(entry -> Pair.of(entry.getKey(), entry.getValue().get(0)))

Review comment:
       Is it okay to only keep the first value?

##########
File path: pinot-broker/src/main/java/org/apache/pinot/broker/broker/BasicAuthAccessControlFactory.java
##########
@@ -0,0 +1,159 @@
+/**
+ * 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.pinot.broker.broker;
+
+import com.google.common.base.Preconditions;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.pinot.broker.api.AccessControl;
+import org.apache.pinot.broker.api.HttpRequesterIdentity;
+import org.apache.pinot.broker.api.RequesterIdentity;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.spi.env.PinotConfiguration;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+
+/**
+ * Basic Authentication based on http headers. Configured via the "pinot.broker.access.control" family of properties.
+ *
+ * <pre>
+ *     Example:
+ *     pinot.broker.access.control.principals=admin123,user456
+ *     pinot.broker.access.control.principals.admin123.password=verysecret
+ *     pinot.broker.access.control.principals.user456.password=kindasecret
+ *     pinot.broker.access.control.principals.user456.tables=stuff,lessImportantStuff
+ * </pre>
+ */
+public class BasicAuthAccessControlFactory extends AccessControlFactory {
+  private static final String PRINCIPALS = "principals";
+  private static final String PASSWORD = "password";
+  private static final String TABLES = "tables";
+  private static final String TABLES_ALL = "*";
+
+  private static final String HEADER_AUTHORIZATION = "authorization";
+
+  private AccessControl _accessControl;
+
+  public BasicAuthAccessControlFactory() {
+    // left blank
+  }
+
+  public void init(PinotConfiguration configuration) {
+    String principalNames = configuration.getProperty(PRINCIPALS);
+    Preconditions.checkArgument(StringUtils.isNotBlank(principalNames), "must provide principals");
+
+    List<BasicAuthPrincipal> principals = Arrays.stream(principalNames.split(",")).map(rawName -> {
+      String name = rawName.trim();
+      Preconditions.checkArgument(StringUtils.isNotBlank(name), "%s is not a valid name", name);
+
+      String password = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, PASSWORD));
+      Preconditions.checkArgument(StringUtils.isNotBlank(password), "must provide a password for %s", name);
+
+      Set<String> tables = new HashSet<>();
+      String tableNames = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, TABLES));
+      if (StringUtils.isNotBlank(tableNames) && !TABLES_ALL.equals(tableNames)) {
+        tables.addAll(Arrays.asList(tableNames.split(",")));
+      }
+
+      return new BasicAuthPrincipal(name, toToken(name, password), tables);
+    }).collect(Collectors.toList());
+
+    _accessControl = new BasicAuthAccessControl(principals);
+  }
+
+  public AccessControl create() {
+    return _accessControl;
+  }
+
+  /**
+   * Access Control using header-based basic http authentication
+   */
+  private static class BasicAuthAccessControl implements AccessControl {
+    private final Map<String, BasicAuthPrincipal> _principals;
+
+    public BasicAuthAccessControl(Collection<BasicAuthPrincipal> principals) {
+      this._principals = principals.stream().collect(Collectors.toMap(BasicAuthPrincipal::getToken, p -> p));
+    }
+
+    @Override
+    public boolean hasAccess(RequesterIdentity requesterIdentity, BrokerRequest brokerRequest) {
+      Preconditions.checkArgument(requesterIdentity instanceof HttpRequesterIdentity, "HttpRequesterIdentity required");
+      HttpRequesterIdentity identity = (HttpRequesterIdentity) requesterIdentity;
+
+      Collection<String> tokens = identity.getHttpHeaders().get(HEADER_AUTHORIZATION);
+      Optional<BasicAuthPrincipal> principalOpt = tokens.stream().map(BasicAuthAccessControlFactory::normalizeToken)
+              .map(_principals::get).filter(Objects::nonNull).findFirst();
+
+      if (!principalOpt.isPresent()) {
+        // no matching token? reject
+        return false;
+      }
+
+      BasicAuthPrincipal principal = principalOpt.get();
+      if (principal.getTables().isEmpty()
+              || !brokerRequest.isSetQuerySource()
+              || !brokerRequest.getQuerySource().isSetTableName()) {
+        // no table restrictions? accept
+        return true;
+      }
+
+      return principal.getTables().contains(brokerRequest.getQuerySource().getTableName());
+    }
+  }
+
+  /**
+   * Container object for basic auth principal
+   */
+  private static class BasicAuthPrincipal {
+    private final String _name;
+    private final String _token;
+    private final Set<String> _tables;
+
+    public BasicAuthPrincipal(String name, String token, Set<String> tables) {
+      this._name = name;
+      this._token = token;
+      this._tables = tables;
+    }
+
+    public String getName() {
+      return _name;
+    }
+
+    public Set<String> getTables() {
+      return _tables;
+    }
+
+    public String getToken() {
+      return _token;
+    }
+  }
+
+  private static String toToken(String name, String password) {
+    String identifier = String.format("%s:%s", name, password);
+    return normalizeToken(String.format("Basic %s", Base64.getEncoder().encodeToString(identifier.getBytes())));
+  }
+
+  private static String normalizeToken(String token) {
+    if (token == null) {
+      return null;
+    }
+    return token.trim().replace("=", "");

Review comment:
       Why do we need to remove the `=`?
   Besides, `StringUtils.remove(token.trim(), '=')` is faster.

##########
File path: pinot-broker/src/main/java/org/apache/pinot/broker/broker/BasicAuthAccessControlFactory.java
##########
@@ -0,0 +1,159 @@
+/**
+ * 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.pinot.broker.broker;
+
+import com.google.common.base.Preconditions;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.pinot.broker.api.AccessControl;
+import org.apache.pinot.broker.api.HttpRequesterIdentity;
+import org.apache.pinot.broker.api.RequesterIdentity;
+import org.apache.pinot.common.request.BrokerRequest;
+import org.apache.pinot.spi.env.PinotConfiguration;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+
+/**
+ * Basic Authentication based on http headers. Configured via the "pinot.broker.access.control" family of properties.
+ *
+ * <pre>
+ *     Example:
+ *     pinot.broker.access.control.principals=admin123,user456
+ *     pinot.broker.access.control.principals.admin123.password=verysecret
+ *     pinot.broker.access.control.principals.user456.password=kindasecret
+ *     pinot.broker.access.control.principals.user456.tables=stuff,lessImportantStuff
+ * </pre>
+ */
+public class BasicAuthAccessControlFactory extends AccessControlFactory {
+  private static final String PRINCIPALS = "principals";
+  private static final String PASSWORD = "password";
+  private static final String TABLES = "tables";
+  private static final String TABLES_ALL = "*";
+
+  private static final String HEADER_AUTHORIZATION = "authorization";
+
+  private AccessControl _accessControl;
+
+  public BasicAuthAccessControlFactory() {
+    // left blank
+  }
+
+  public void init(PinotConfiguration configuration) {
+    String principalNames = configuration.getProperty(PRINCIPALS);
+    Preconditions.checkArgument(StringUtils.isNotBlank(principalNames), "must provide principals");
+
+    List<BasicAuthPrincipal> principals = Arrays.stream(principalNames.split(",")).map(rawName -> {
+      String name = rawName.trim();
+      Preconditions.checkArgument(StringUtils.isNotBlank(name), "%s is not a valid name", name);
+
+      String password = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, PASSWORD));
+      Preconditions.checkArgument(StringUtils.isNotBlank(password), "must provide a password for %s", name);
+
+      Set<String> tables = new HashSet<>();
+      String tableNames = configuration.getProperty(String.format("%s.%s.%s", PRINCIPALS, name, TABLES));
+      if (StringUtils.isNotBlank(tableNames) && !TABLES_ALL.equals(tableNames)) {
+        tables.addAll(Arrays.asList(tableNames.split(",")));
+      }
+
+      return new BasicAuthPrincipal(name, toToken(name, password), tables);
+    }).collect(Collectors.toList());
+
+    _accessControl = new BasicAuthAccessControl(principals);
+  }
+
+  public AccessControl create() {
+    return _accessControl;
+  }
+
+  /**
+   * Access Control using header-based basic http authentication
+   */
+  private static class BasicAuthAccessControl implements AccessControl {
+    private final Map<String, BasicAuthPrincipal> _principals;
+
+    public BasicAuthAccessControl(Collection<BasicAuthPrincipal> principals) {
+      this._principals = principals.stream().collect(Collectors.toMap(BasicAuthPrincipal::getToken, p -> p));
+    }
+
+    @Override
+    public boolean hasAccess(RequesterIdentity requesterIdentity, BrokerRequest brokerRequest) {
+      Preconditions.checkArgument(requesterIdentity instanceof HttpRequesterIdentity, "HttpRequesterIdentity required");
+      HttpRequesterIdentity identity = (HttpRequesterIdentity) requesterIdentity;
+
+      Collection<String> tokens = identity.getHttpHeaders().get(HEADER_AUTHORIZATION);
+      Optional<BasicAuthPrincipal> principalOpt = tokens.stream().map(BasicAuthAccessControlFactory::normalizeToken)
+              .map(_principals::get).filter(Objects::nonNull).findFirst();
+
+      if (!principalOpt.isPresent()) {
+        // no matching token? reject
+        return false;
+      }
+
+      BasicAuthPrincipal principal = principalOpt.get();
+      if (principal.getTables().isEmpty()
+              || !brokerRequest.isSetQuerySource()
+              || !brokerRequest.getQuerySource().isSetTableName()) {
+        // no table restrictions? accept
+        return true;
+      }
+
+      return principal.getTables().contains(brokerRequest.getQuerySource().getTableName());
+    }
+  }
+
+  /**
+   * Container object for basic auth principal
+   */
+  private static class BasicAuthPrincipal {
+    private final String _name;
+    private final String _token;
+    private final Set<String> _tables;
+
+    public BasicAuthPrincipal(String name, String token, Set<String> tables) {
+      this._name = name;
+      this._token = token;
+      this._tables = tables;
+    }
+
+    public String getName() {
+      return _name;
+    }
+
+    public Set<String> getTables() {
+      return _tables;
+    }
+
+    public String getToken() {
+      return _token;
+    }
+  }
+
+  private static String toToken(String name, String password) {
+    String identifier = String.format("%s:%s", name, password);
+    return normalizeToken(String.format("Basic %s", Base64.getEncoder().encodeToString(identifier.getBytes())));

Review comment:
       Should we use `UTF-8` here?




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