Source Code Cross Referenced for Default.java in  » Issue-Tracking » scarab-0.21 » org » tigris » scarab » screens » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Issue Tracking » scarab 0.21 » org.tigris.scarab.screens 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package org.tigris.scarab.screens;
002:
003:        /* ================================================================
004:         * Copyright (c) 2000-2002 CollabNet.  All rights reserved.
005:         * 
006:         * Redistribution and use in source and binary forms, with or without
007:         * modification, are permitted provided that the following conditions are
008:         * met:
009:         * 
010:         * 1. Redistributions of source code must retain the above copyright
011:         * notice, this list of conditions and the following disclaimer.
012:         * 
013:         * 2. Redistributions in binary form must reproduce the above copyright
014:         * notice, this list of conditions and the following disclaimer in the
015:         * documentation and/or other materials provided with the distribution.
016:         * 
017:         * 3. The end-user documentation included with the redistribution, if
018:         * any, must include the following acknowlegement: "This product includes
019:         * software developed by Collab.Net <http://www.Collab.Net/>."
020:         * Alternately, this acknowlegement may appear in the software itself, if
021:         * and wherever such third-party acknowlegements normally appear.
022:         * 
023:         * 4. The hosted project names must not be used to endorse or promote
024:         * products derived from this software without prior written
025:         * permission. For written permission, please contact info@collab.net.
026:         * 
027:         * 5. Products derived from this software may not use the "Tigris" or 
028:         * "Scarab" names nor may "Tigris" or "Scarab" appear in their names without 
029:         * prior written permission of Collab.Net.
030:         * 
031:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
032:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
033:         * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
034:         * IN NO EVENT SHALL COLLAB.NET OR ITS CONTRIBUTORS BE LIABLE FOR ANY
035:         * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
036:         * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
037:         * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
038:         * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
039:         * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
040:         * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
041:         * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
042:         *
043:         * ====================================================================
044:         * 
045:         * This software consists of voluntary contributions made by many
046:         * individuals on behalf of Collab.Net.
047:         */
048:
049:        // Java Stuff
050:        import java.util.List;
051:
052:        // Turbine Stuff
053:        import org.apache.turbine.RunData;
054:        import org.apache.turbine.TemplateContext;
055:        import org.apache.turbine.TemplateSecureScreen;
056:        import org.apache.turbine.Turbine;
057:
058:        // Scarab Stuff
059:        import org.tigris.scarab.services.security.ScarabSecurity;
060:        import org.tigris.scarab.tools.ScarabRequestTool;
061:        import org.tigris.scarab.tools.ScarabLocalizationTool;
062:        import org.tigris.scarab.tools.localization.L10NKeySet;
063:        import org.tigris.scarab.util.ScarabConstants;
064:        import org.tigris.scarab.util.Log;
065:        import org.tigris.scarab.om.Module;
066:        import org.tigris.scarab.om.ModuleManager;
067:        import org.tigris.scarab.om.ScarabUser;
068:
069:        /**
070:         * This class is responsible for building the Context up
071:         * for the Default Screen as well as validating Security information
072:         * for all of the Screens. Please note that the Actions also may depend
073:         * on the checkAuthorized() method in order to prevent the need for
074:         * duplication of code.
075:         *
076:         * @author <a href="mailto:jon@collab.net">Jon S. Stevens</a>
077:         * @version $Id: Default.java 9290 2004-12-03 15:57:52Z dep4b $
078:         */
079:        public class Default extends TemplateSecureScreen {
080:            /**
081:             * Override the subclass and call doBuildTemplate. This is a hack. 
082:             * For some reason the doBuildTemplate is not being called in a 
083:             * few select cases, so lets just hack things to always get called
084:             * properly.
085:             */
086:            public String doBuild(RunData data) throws Exception {
087:                super .doBuild(data);
088:                return "";
089:            }
090:
091:            /**
092:             * builds up the context for display of variables on the page.
093:             */
094:            protected void doBuildTemplate(RunData data, TemplateContext context)
095:                    throws Exception {
096:                ScarabRequestTool scarabR = getScarabRequestTool(context);
097:                // This may not be the best location for this, we might need to create
098:                // a valve.
099:                // check that the module exists, it may not have been created yet.
100:                try {
101:                    scarabR.getCurrentModule();
102:                } catch (Exception ignore) {
103:                }
104:
105:                // add the title text to the context.
106:                ScarabLocalizationTool l10n = (ScarabLocalizationTool) context
107:                        .get("l10n");
108:
109:                // Determine whether this target requires issue types.
110:                String altTarget = getTargetForNoIssueTypes(data);
111:                boolean changeTarget = false;
112:                if (altTarget != null) {
113:                    List issueTypes = scarabR.getCurrentModule().getIssueTypes(
114:                            true);
115:                    changeTarget = (issueTypes == null || issueTypes.isEmpty());
116:                }
117:
118:                if (changeTarget) {
119:                    // Pass control to the alternate target.
120:                    scarabR.setAlertMessage(L10NKeySet.IssueTypeUnavailable);
121:                    setTarget(data, altTarget);
122:                } else {
123:                    // Add the title text to the context.
124:                    String title = null;
125:                    try {
126:                        title = getTitle(scarabR, l10n);
127:                    } catch (Exception e) {
128:                        Log.get().info(
129:                                "Error getting page title for Screen: "
130:                                        + data.getTarget());
131:                    }
132:                    if (title == null) {
133:                        title = "Scarab";
134:                    }
135:                    context.put("title", title);
136:                }
137:            }
138:
139:            protected String getTitle(ScarabRequestTool scarabR,
140:                    ScarabLocalizationTool l10n) throws Exception {
141:                return l10n.getTitle();
142:            }
143:
144:            /**
145:             * @return The value of the
146:             * <code>template.[screen].noIssueTypesForwardsTo</code> property,
147:             * or <code>null</code> if not set.
148:             *
149:             */
150:            private String getTargetForNoIssueTypes(RunData data) {
151:                String property = "template."
152:                        + data.getTarget().replace(',', '/')
153:                        + ".noIssueTypesForwardsTo";
154:                return Turbine.getConfiguration().getString(property, null);
155:            }
156:
157:            /**
158:             * sets the template to Login.vm if the user hasn't logged in yet
159:             * or if the user does not have the base permissions.
160:             */
161:            protected boolean isAuthorized(RunData data) throws Exception {
162:                return checkAuthorized(data);
163:            }
164:
165:            /**
166:             * Public static access to the isAuthorized() method so that
167:             * an Action can use this same method to do authorization.
168:             */
169:            public static boolean checkAuthorized(RunData data)
170:                    throws Exception {
171:                String template = data.getTarget();
172:                {
173:                    template = template.replace(',', '.');
174:                    String perm = ScarabSecurity.getScreenPermission(template);
175:                    TemplateContext context = getTemplateContext(data);
176:                    ScarabRequestTool scarabR = getScarabRequestTool(context);
177:                    ScarabLocalizationTool l10n = getLocalizationTool(context);
178:                    Module currentModule = scarabR.getCurrentModule();
179:                    ScarabUser user = (ScarabUser) data.getUser();
180:                    if (perm != null) {
181:                        if (!user.hasLoggedIn()
182:                                || !user.hasPermission(perm, currentModule)) {
183:                            scarabR
184:                                    .setInfoMessage(L10NKeySet.LoginToAccountWithPermissions);
185:                            // it is very common to come from email to view a
186:                            // particular issue.  Until a more general formula for
187:                            // deciding which requests might be ok to continue after
188:                            // a login, we will at least allow this one.
189:                            if ("ViewIssue.vm".equals(data.getTarget())) {
190:                                data.getParameters().setString("viewIssueId",
191:                                        data.getParameters().getString("id"));
192:                            }
193:
194:                            setTargetLogin(data);
195:                            scarabR.setCurrentModule(null);
196:                            return false;
197:                        } else if (currentModule == null) {
198:                            Log.get().debug("Current module is null");
199:                            scarabR
200:                                    .setInfoMessage(L10NKeySet.SelectModuleToWorkIn);
201:                            setTargetSelectModule(data);
202:                            return false;
203:                        }
204:                    }
205:                    // does the user at least have a role in the module?
206:                    // we don't check user.hasLoggedIn() here because guest
207:                    // users could have a role in a module.
208:                    else if (currentModule != null
209:                            && !user.hasAnyRoleIn(currentModule)
210:                            && !user.hasAnyRoleIn(ModuleManager
211:                                    .getInstance(Module.ROOT_ID))) {
212:                        if (Log.get().isDebugEnabled()) {
213:                            Log
214:                                    .get()
215:                                    .debug(
216:                                            "User ("
217:                                                    + user.getUserId()
218:                                                    + ") did not have any roles in current module"
219:                                                    + currentModule.getName());
220:                        }
221:                        scarabR.setCurrentModule(null);
222:                        data.getParameters().remove(
223:                                ScarabConstants.CURRENT_MODULE);
224:                        scarabR
225:                                .setAlertMessage(L10NKeySet.NoPermissionInModule);
226:                        setTargetSelectModule(data);
227:                        return false;
228:                    }
229:                    /* FIXME
230:                       Breaks the ability to request roles because the permission is null and
231:                       the module is null, but we are logged in. John, we should assign default
232:                       permissions to each screen so that we can make it so that someone can be
233:                       logged in, but not select a module yet and be shown the select module
234:                       screen. (JSS)
235:                    
236:                                else if (currentModule == null &&
237:                                         user != null &&
238:                                         user.hasLoggedIn())
239:                                {
240:                                    setTargetSelectModule(data);
241:                                    return true;
242:                                }
243:                     */
244:                }
245:                return true;
246:            }
247:
248:            public static void setTargetSelectModule(RunData data) {
249:                getTemplateContext(data).put(
250:                        ScarabConstants.NEXT_TEMPLATE,
251:                        data.getParameters().getString(
252:                                ScarabConstants.NEXT_TEMPLATE));
253:
254:                setTarget(data, Turbine.getConfiguration().getString(
255:                        "scarab.CurrentModuleTemplate", "SelectModule.vm"));
256:            }
257:
258:            public static void setTargetLogin(RunData data) {
259:                getTemplateContext(data).put(ScarabConstants.NEXT_TEMPLATE,
260:                        data.getParameters().getString("template"));
261:                setTarget(data, "Login.vm");
262:            }
263:
264:            /**
265:             * Helper method to retrieve the ScarabRequestTool from the Context
266:             */
267:            public static ScarabRequestTool getScarabRequestTool(
268:                    TemplateContext context) {
269:                return (ScarabRequestTool) context
270:                        .get(ScarabConstants.SCARAB_REQUEST_TOOL);
271:            }
272:
273:            /**
274:             * Helper method to retrieve the ScarabLocalizationTool from the Context
275:             */
276:            public static ScarabLocalizationTool getLocalizationTool(
277:                    TemplateContext context) {
278:                return (ScarabLocalizationTool) context
279:                        .get(ScarabConstants.LOCALIZATION_TOOL);
280:            }
281:        }
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