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1   package org.apache.maven.continuum.web.validator;
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 com.opensymphony.xwork2.validator.ValidationException;
23  import com.opensymphony.xwork2.validator.validators.ValidatorSupport;
24  
25  import java.net.MalformedURLException;
26  import java.net.URL;
27  
28  /**
29   * Validator class for Wagon URLs
30   *
31   * @author <a href="mailto:hisidro@exist.com">Henry Isidro</a>
32   */
33  public class WagonUrlValidator
34      extends ValidatorSupport
35  {
36  
37      public void validate( Object object )
38          throws ValidationException
39      {
40          String url = (String) getFieldValue( "url", object );
41  
42          if ( ( url == null ) || ( url.length() == 0 ) )
43          {
44              return;
45          }
46  
47          if ( url.startsWith( "dav:" ) )
48          {
49              url = url.substring( 4 );
50          }
51  
52          if ( ( url.startsWith( "scp://" ) ) || ( url.startsWith( "sftp://" ) ) )
53          {
54              // URL doesn't understand these protocols, hack it
55              url = "http://" + url.substring( url.indexOf( "://" ) + 3 );
56          }
57  
58          try
59          {
60              new URL( url );
61          }
62          catch ( MalformedURLException m )
63          {
64              addFieldError( "url", object );
65          }
66      }
67  }