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org.apache.turbine.modules.actions.sessionvalidator.TemplateSessionValidator |
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1 | package org.apache.turbine.modules.actions.sessionvalidator; |
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2 | ||
3 | /* |
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4 | * Copyright 2001-2005 The Apache Software Foundation. |
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5 | * |
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6 | * Licensed under the Apache License, Version 2.0 (the "License") |
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7 | * you may not use this file except in compliance with the License. |
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8 | * You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | ||
19 | import org.apache.commons.configuration.Configuration; |
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20 | ||
21 | import org.apache.commons.lang.StringUtils; |
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22 | ||
23 | import org.apache.commons.logging.Log; |
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24 | import org.apache.commons.logging.LogFactory; |
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25 | ||
26 | import org.apache.turbine.Turbine; |
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27 | import org.apache.turbine.TurbineConstants; |
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28 | ||
29 | import org.apache.turbine.services.security.TurbineSecurity; |
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30 | ||
31 | import org.apache.turbine.util.RunData; |
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32 | import org.apache.turbine.util.TurbineException; |
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33 | ||
34 | /** |
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35 | * SessionValidator for use with the Template Service, the |
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36 | * TemplateSessionValidator is virtually identical to the |
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37 | * TemplateSecureValidator except that it does not transfer to the |
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38 | * login page when it detects a null user (or a user not logged in). |
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39 | * |
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40 | * <p>The Template Service requires a different Session Validator |
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41 | * because of the way it handles screens. |
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42 | * |
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43 | * <p>Note that you will need to set the template.login property to the |
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44 | * login template. |
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45 | * |
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46 | * @see TemplateSecureSessionValidator |
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47 | * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a> |
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48 | * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a> |
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49 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
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50 | * @version $Id: TemplateSessionValidator.java 264148 2005-08-29 14:21:04Z henning $ |
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51 | */ |
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52 | 0 | public class TemplateSessionValidator |
53 | extends SessionValidator |
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54 | { |
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55 | /** Logging */ |
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56 | 0 | private static Log log = LogFactory.getLog(TemplateSessionValidator.class); |
57 | ||
58 | /** |
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59 | * Execute the action. |
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60 | * |
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61 | * @param data Turbine information. |
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62 | * @exception TurbineException The anonymous user could not be obtained |
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63 | * from the security service |
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64 | */ |
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65 | public void doPerform(RunData data) |
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66 | throws TurbineException |
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67 | { |
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68 | 0 | Configuration conf = Turbine.getConfiguration(); |
69 | ||
70 | // Pull user from session. |
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71 | 0 | data.populate(); |
72 | ||
73 | // The user may have not logged in, so create a "guest/anonymous" user. |
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74 | 0 | if (data.getUser() == null) |
75 | { |
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76 | 0 | log.debug("Fixing up empty User Object!"); |
77 | 0 | data.setUser(TurbineSecurity.getAnonymousUser()); |
78 | 0 | data.save(); |
79 | } |
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80 | ||
81 | // make sure we have some way to return a response |
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82 | 0 | if (!data.hasScreen() && StringUtils.isEmpty( |
83 | data.getTemplateInfo().getScreenTemplate())) |
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84 | { |
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85 | 0 | String template = conf.getString( |
86 | TurbineConstants.TEMPLATE_HOMEPAGE); |
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87 | ||
88 | 0 | if (StringUtils.isNotEmpty(template)) |
89 | { |
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90 | 0 | data.getTemplateInfo().setScreenTemplate(template); |
91 | } |
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92 | else |
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93 | { |
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94 | 0 | data.setScreen(conf.getString( |
95 | TurbineConstants.SCREEN_HOMEPAGE)); |
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96 | } |
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97 | } |
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98 | // the session_access_counter can be placed as a hidden field in |
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99 | // forms. This can be used to prevent a user from using the |
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100 | // browsers back button and submitting stale data. |
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101 | 0 | else if (data.getParameters().containsKey("_session_access_counter") |
102 | && !TurbineSecurity.isAnonymousUser(data.getUser())) |
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103 | { |
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104 | // See comments in screens.error.InvalidState. |
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105 | 0 | if (data.getParameters().getInt("_session_access_counter") |
106 | < (((Integer) data.getUser().getTemp( |
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107 | "_session_access_counter")).intValue() - 1)) |
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108 | { |
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109 | 0 | if (data.getTemplateInfo().getScreenTemplate() != null) |
110 | { |
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111 | 0 | data.getUser().setTemp("prev_template", |
112 | data.getTemplateInfo().getScreenTemplate() |
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113 | .replace('/', ',')); |
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114 | 0 | data.getTemplateInfo().setScreenTemplate(conf.getString( |
115 | TurbineConstants.TEMPLATE_INVALID_STATE)); |
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116 | } |
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117 | else |
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118 | { |
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119 | 0 | data.getUser().setTemp("prev_screen", |
120 | data.getScreen().replace('/', ',')); |
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121 | 0 | data.setScreen(conf.getString( |
122 | TurbineConstants.SCREEN_INVALID_STATE)); |
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123 | } |
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124 | 0 | data.getUser().setTemp("prev_parameters", data.getParameters()); |
125 | 0 | data.setAction(""); |
126 | } |
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127 | } |
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128 | ||
129 | // we do not want to allow both a screen and template parameter. |
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130 | // The template parameter is dominant. |
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131 | 0 | if (data.getTemplateInfo().getScreenTemplate() != null) |
132 | { |
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133 | 0 | data.setScreen(null); |
134 | } |
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135 | 0 | } |
136 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |