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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.scm.provider.git.gitexe.command;
20  
21  import java.util.regex.Matcher;
22  import java.util.regex.Pattern;
23  
24  import org.codehaus.plexus.util.cli.Commandline;
25  
26  /**
27   * CommandLine extension to mask password
28   * @since 1.9.3
29   */
30  public class AnonymousCommandLine extends Commandline {
31  
32      public static final String PASSWORD_PLACE_HOLDER = "********";
33  
34      private Pattern passwordPattern = Pattern.compile("^.*:(.*)@.*$");
35  
36      /**
37       * Provides an anonymous output to mask password. Considering URL of type :
38       * <<protocol>>://<<user>>:<<password>>@
39       * <<host_definition>>
40       */
41      @Override
42      public String toString() {
43          String output = super.toString();
44          final Matcher passwordMatcher = passwordPattern.matcher(output);
45          if (passwordMatcher.find()) {
46              // clear password
47              final String clearPassword = passwordMatcher.group(1);
48              // to be replaced in output by stars
49              output = output.replace(clearPassword, PASSWORD_PLACE_HOLDER);
50          }
51          return output;
52      }
53  }