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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   *                                                              *
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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  
20  
21  package org.apache.james.jspf.core;
22  
23  import org.apache.james.jspf.core.exceptions.SPFErrorConstants;
24  
25  
26  /**
27   * 
28   * Class that offer static methods to convert SPF Results and contains all
29   * possible results as static Strings.
30   *
31   */
32  
33  public class SPF1Utils {
34  
35      public static final String DEFAULT_EXPLANATION = "http://www.openspf.org/why.html?sender=%{S}&ip=%{I}";
36      public static final String BEST_GUESS_RECORD = "v=spf1 a/24 mx/24 ptr ?all";
37      public static final String ATTRIBUTE_SPF1_RECORD = "SPF.SPF1Record";
38  
39      /**
40       * Convert raw SPF results to SPF names
41       * 
42       * @param result The result which should converted
43       * @return coverted result
44       */
45      public static String resultToName(String result) {
46  
47          if (result.equals(SPF1Constants.PASS)) {
48              return SPFErrorConstants.PASS_CONV;
49          } else if (result.equals(SPF1Constants.FAIL)) {
50              return SPFErrorConstants.FAIL_CONV;
51          } else if (result.equals(SPF1Constants.NEUTRAL)) {
52              return SPFErrorConstants.NEUTRAL_CONV;
53          } else if (result.equals(SPF1Constants.SOFTFAIL)) {
54              return SPFErrorConstants.SOFTFAIL_CONV;
55          } else {
56              return SPFErrorConstants.NEUTRAL_CONV;
57          }
58  
59      }
60  
61      /**
62       * Check for valid FQDN
63       * 
64       * @param host The hostname to check
65       * @return false or true
66       */
67      public static boolean checkFQDN(String host) {
68          String regex = "(([a-zA-Z0-9\\-])+\\.)+([a-zA-Z]+)$";
69          if (host.matches(regex)) {
70              return true;
71          } else {
72              return false;
73          }
74      }
75  }