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1   package org.apache.maven.scm.provider.git.gitexe.command;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   * http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.codehaus.plexus.util.cli.Commandline;
23  
24  import java.util.regex.Matcher;
25  import java.util.regex.Pattern;
26  
27  /**
28   * CommandLine extension to mask password
29   * @since 1.9.3
30   */
31  public class AnonymousCommandLine
32      extends Commandline
33  {
34  
35      public static final String PASSWORD_PLACE_HOLDER = "********";
36  
37      private Pattern passwordPattern = Pattern.compile( "^.*:(.*)@.*$" );
38  
39      /**
40       * Provides an anonymous output to mask password. Considering URL of type :
41       * <<protocol>>://<<user>>:<<password>>@
42       * <<host_definition>>
43       */
44      @Override
45      public String toString()
46      {
47          String output = super.toString();
48          final Matcher passwordMatcher = passwordPattern.matcher( output );
49          if ( passwordMatcher.find() )
50          {
51              // clear password
52              final String clearPassword = passwordMatcher.group( 1 );
53              // to be replaced in output by stars
54              output = output.replace( clearPassword, PASSWORD_PLACE_HOLDER );
55          }
56          return output;
57      }
58  }