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1   package org.apache.maven.wagon.proxy;
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 java.util.StringTokenizer;
23  
24  /**
25   * @author <a href="mailto:lafeuil@gmail.com">Thomas Champagne</a>
26   */
27  public final class ProxyUtils
28  {
29      private ProxyUtils()
30      {
31      }
32  
33      /**
34       * Check if the specified host is in the list of non proxy hosts.
35       * 
36       * @param proxy the proxy info object contains set of properties.
37       * @param targetHost the target hostname
38       * @return true if the hostname is in the list of non proxy hosts, false otherwise.
39       */
40      public static boolean validateNonProxyHosts( ProxyInfo proxy, String targetHost )
41      {
42          if ( targetHost == null )
43          {
44              targetHost = new String();
45          }
46          if ( proxy == null )
47          {
48              return false;
49          }
50          String nonProxyHosts = proxy.getNonProxyHosts();
51          if ( nonProxyHosts == null )
52          {
53              return false;
54          }
55  
56          StringTokenizer tokenizer = new StringTokenizer( nonProxyHosts, "|" );
57  
58          while ( tokenizer.hasMoreTokens() )
59          {
60              String pattern = tokenizer.nextToken();
61              pattern = pattern.replaceAll( "\\.", "\\\\." ).replaceAll( "\\*", ".*" );
62              if ( targetHost.matches( pattern ) )
63              {
64                  return true;
65              }
66          }
67          return false;
68      }
69  }