1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.security.auth;
24  
25  import com.liferay.portal.NoSuchGroupException;
26  import com.liferay.portal.NoSuchUserException;
27  import com.liferay.portal.kernel.util.StringPool;
28  import com.liferay.portal.kernel.util.StringUtil;
29  import com.liferay.portal.service.GroupLocalServiceUtil;
30  import com.liferay.portal.service.UserLocalServiceUtil;
31  
32  /**
33   * <a href="ScreenNameGenerator.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Brian Wing Shun Chan
36   * @author Alexander Chow
37   *
38   */
39  public class ScreenNameGenerator {
40  
41      public String generate(long companyId, long userId, String emailAddress)
42          throws Exception {
43  
44          String screenName = StringUtil.extractFirst(
45              emailAddress, StringPool.AT).toLowerCase();
46  
47          screenName = StringUtil.replace(
48              screenName,
49              new String[] {StringPool.SLASH, StringPool.UNDERLINE},
50              new String[] {StringPool.PERIOD, StringPool.PERIOD});
51  
52          if (screenName.equals(ScreenNameValidator.CYRUS) ||
53              screenName.equals(ScreenNameValidator.POSTFIX)) {
54  
55              screenName += StringPool.PERIOD + userId;
56          }
57  
58          try {
59              UserLocalServiceUtil.getUserByScreenName(companyId, screenName);
60          }
61          catch (NoSuchUserException nsue) {
62              try {
63                  GroupLocalServiceUtil.getFriendlyURLGroup(
64                      companyId, StringPool.SLASH + screenName);
65              }
66              catch (NoSuchGroupException nsge) {
67                  return screenName;
68              }
69          }
70  
71          for (int i = 1;; i++) {
72              String tempScreenName = screenName + StringPool.PERIOD + i;
73  
74              try {
75                  UserLocalServiceUtil.getUserByScreenName(
76                      companyId, tempScreenName);
77              }
78              catch (NoSuchUserException nsue) {
79                  try {
80                      GroupLocalServiceUtil.getFriendlyURLGroup(
81                          companyId, StringPool.SLASH + tempScreenName);
82                  }
83                  catch (NoSuchGroupException nsge) {
84                      screenName = tempScreenName;
85  
86                      break;
87                  }
88              }
89          }
90  
91          return screenName;
92      }
93  
94  }