content: /*
   * 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.kafka.common.utils;
  
  import org.junit.jupiter.api.Test;
  
  import java.lang.management.ManagementFactory;
  
  import javax.management.MBeanException;
  import javax.management.MBeanServer;
  import javax.management.MalformedObjectNameException;
  import javax.management.ObjectName;
  import javax.management.OperationsException;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.junit.jupiter.api.Assertions.fail;
  
  public class SanitizerTest {
  
      @Test
      public void testSanitize() {
          String principal = "CN=Some characters !@#$%&*()_-+=';:,/~";
          String sanitizedPrincipal = Sanitizer.sanitize(principal);
          assertTrue(sanitizedPrincipal.replace('%', '_').matches("[a-zA-Z0-9\\._\\-]+"));
          assertEquals(principal, Sanitizer.desanitize(sanitizedPrincipal));
      }
  
      @Test
      public void testJmxSanitize() throws MalformedObjectNameException {
          int unquoted = 0;
          for (int i = 0; i < 65536; i++) {
              char c = (char) i;
              String value = "value" + c;
              String jmxSanitizedValue = Sanitizer.jmxSanitize(value);
              if (jmxSanitizedValue.equals(value))
                  unquoted++;
              verifyJmx(jmxSanitizedValue, i);
              String encodedValue = Sanitizer.sanitize(value);
              verifyJmx(encodedValue, i);
              // jmxSanitize should not sanitize URL-encoded values
              assertEquals(encodedValue, Sanitizer.jmxSanitize(encodedValue));
          }
          assertEquals(68, unquoted); // a-zA-Z0-9-_% space and tab
      }
  
      private void verifyJmx(String sanitizedValue, int c) throws MalformedObjectNameException {
          Object mbean = new TestStat();
          MBeanServer server = ManagementFactory.getPlatformMBeanServer();
          ObjectName objectName = new ObjectName("test:key=" + sanitizedValue);
          try {
              server.registerMBean(mbean, objectName);
              server.unregisterMBean(objectName);
          } catch (OperationsException | MBeanException e) {
              fail("Could not register char=\\u" + c);
          }
      }
  
      public interface TestStatMBean {
          int getValue();
      }
  
      public static class TestStat implements TestStatMBean {
          public int getValue() {
              return 1;
          }
      }
  }
  