1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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.kernel.util.Validator;
30  import com.liferay.portal.service.GroupLocalServiceUtil;
31  import com.liferay.portal.service.UserLocalServiceUtil;
32  
33  /**
34   * <a href="DefaultScreenNameGenerator.java.html"><b><i>View Source</i></b></a>
35   *
36   * @author Brian Wing Shun Chan
37   * @author Alexander Chow
38   */
39  public class DefaultScreenNameGenerator implements ScreenNameGenerator {
40  
41      public String generate(long companyId, long userId, String emailAddress)
42          throws Exception {
43  
44          String screenName = null;
45  
46          if (Validator.isNotNull(emailAddress)) {
47              screenName = StringUtil.extractFirst(
48                  emailAddress, StringPool.AT).toLowerCase();
49  
50              screenName = StringUtil.replace(
51                  screenName,
52                  new String[] {StringPool.SLASH, StringPool.UNDERLINE},
53                  new String[] {StringPool.PERIOD, StringPool.PERIOD});
54  
55              if (screenName.equals(DefaultScreenNameValidator.CYRUS) ||
56                  screenName.equals(DefaultScreenNameValidator.POSTFIX)) {
57  
58                  screenName += StringPool.PERIOD + userId;
59              }
60          }
61          else {
62              screenName = String.valueOf(userId);
63          }
64  
65          try {
66              UserLocalServiceUtil.getUserByScreenName(companyId, screenName);
67          }
68          catch (NoSuchUserException nsue) {
69              try {
70                  GroupLocalServiceUtil.getFriendlyURLGroup(
71                      companyId, StringPool.SLASH + screenName);
72              }
73              catch (NoSuchGroupException nsge) {
74                  return screenName;
75              }
76          }
77  
78          for (int i = 1;; i++) {
79              String tempScreenName = screenName + StringPool.PERIOD + i;
80  
81              try {
82                  UserLocalServiceUtil.getUserByScreenName(
83                      companyId, tempScreenName);
84              }
85              catch (NoSuchUserException nsue) {
86                  try {
87                      GroupLocalServiceUtil.getFriendlyURLGroup(
88                          companyId, StringPool.SLASH + tempScreenName);
89                  }
90                  catch (NoSuchGroupException nsge) {
91                      screenName = tempScreenName;
92  
93                      break;
94                  }
95              }
96          }
97  
98          return screenName;
99      }
100 
101 }