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1   // ========================================================================
2   // Copyright 2003-2005 Mort Bay Consulting Pty. Ltd.
3   // ------------------------------------------------------------------------
4   // Licensed under the Apache License, Version 2.0 (the "License");
5   // you may not use this file except in compliance with the License.
6   // You may obtain a copy of the License at
7   // http://www.apache.org/licenses/LICENSE-2.0
8   // Unless required by applicable law or agreed to in writing, software
9   // distributed under the License is distributed on an "AS IS" BASIS,
10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11  // See the License for the specific language governing permissions and
12  // limitations under the License.
13  // ========================================================================
14  package org.mortbay.jetty.webapp;
15  
16  import java.io.File;
17  import java.io.IOException;
18  import java.net.MalformedURLException;
19  import java.net.URL;
20  import java.util.ArrayList;
21  import java.util.EventListener;
22  import java.util.HashMap;
23  import java.util.Iterator;
24  import java.util.Map;
25  
26  import javax.servlet.UnavailableException;
27  
28  import org.mortbay.jetty.Handler;
29  import org.mortbay.jetty.handler.ContextHandler;
30  import org.mortbay.jetty.security.Authenticator;
31  import org.mortbay.jetty.security.BasicAuthenticator;
32  import org.mortbay.jetty.security.ClientCertAuthenticator;
33  import org.mortbay.jetty.security.Constraint;
34  import org.mortbay.jetty.security.ConstraintMapping;
35  import org.mortbay.jetty.security.DigestAuthenticator;
36  import org.mortbay.jetty.security.FormAuthenticator;
37  import org.mortbay.jetty.security.UserRealm;
38  import org.mortbay.jetty.servlet.Dispatcher;
39  import org.mortbay.jetty.servlet.ErrorPageErrorHandler;
40  import org.mortbay.jetty.servlet.FilterHolder;
41  import org.mortbay.jetty.servlet.FilterMapping;
42  import org.mortbay.jetty.servlet.ServletHandler;
43  import org.mortbay.jetty.servlet.ServletHolder;
44  import org.mortbay.jetty.servlet.ServletMapping;
45  import org.mortbay.log.Log;
46  import org.mortbay.resource.Resource;
47  import org.mortbay.util.LazyList;
48  import org.mortbay.util.Loader;
49  import org.mortbay.xml.XmlParser;
50  /* ------------------------------------------------------------------------------- */
51  /**
52   * Configure by parsing default web.xml and web.xml
53   * 
54   * @author gregw
55   */
56  public class WebXmlConfiguration implements Configuration
57  {
58      protected WebAppContext _context;
59      protected XmlParser _xmlParser;
60      protected Object _filters;
61      protected Object _filterMappings;
62      protected Object _servlets;
63      protected Object _servletMappings;
64      protected Object _welcomeFiles;
65      protected Object _constraintMappings;
66      protected Object _listeners;
67      protected Map _errorPages;
68      protected boolean _hasJSP;
69      protected String _jspServletName;
70      protected String _jspServletClass;
71      protected boolean _defaultWelcomeFileList;
72      protected ServletHandler _servletHandler;
73      protected int _version;
74  
75      public WebXmlConfiguration()
76      {
77          // Get parser
78          _xmlParser=webXmlParser();
79      }
80  
81      public static XmlParser webXmlParser()
82      {
83          XmlParser xmlParser=new XmlParser();
84          //set up cache of DTDs and schemas locally
85          URL dtd22=WebAppContext.class.getResource("/javax/servlet/resources/web-app_2_2.dtd");
86          URL dtd23=WebAppContext.class.getResource("/javax/servlet/resources/web-app_2_3.dtd");
87          URL jsp20xsd=WebAppContext.class.getResource("/javax/servlet/resources/jsp_2_0.xsd");
88          URL jsp21xsd=WebAppContext.class.getResource("/javax/servlet/resources/jsp_2_1.xsd");
89          URL j2ee14xsd=WebAppContext.class.getResource("/javax/servlet/resources/j2ee_1_4.xsd");
90          URL webapp24xsd=WebAppContext.class.getResource("/javax/servlet/resources/web-app_2_4.xsd");
91          URL webapp25xsd=WebAppContext.class.getResource("/javax/servlet/resources/web-app_2_5.xsd");
92          URL schemadtd=WebAppContext.class.getResource("/javax/servlet/resources/XMLSchema.dtd");
93          URL xmlxsd=WebAppContext.class.getResource("/javax/servlet/resources/xml.xsd");
94          URL webservice11xsd=WebAppContext.class.getResource("/javax/servlet/resources/j2ee_web_services_client_1_1.xsd");
95          URL webservice12xsd=WebAppContext.class.getResource("/javax/servlet/resources/javaee_web_services_client_1_2.xsd");
96          URL datatypesdtd=WebAppContext.class.getResource("/javax/servlet/resources/datatypes.dtd");
97          xmlParser.redirectEntity("web-app_2_2.dtd",dtd22);
98          xmlParser.redirectEntity("-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN",dtd22);
99          xmlParser.redirectEntity("web.dtd",dtd23);
100         xmlParser.redirectEntity("web-app_2_3.dtd",dtd23);
101         xmlParser.redirectEntity("-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN",dtd23);
102         xmlParser.redirectEntity("XMLSchema.dtd",schemadtd);
103         xmlParser.redirectEntity("http://www.w3.org/2001/XMLSchema.dtd",schemadtd);
104         xmlParser.redirectEntity("-//W3C//DTD XMLSCHEMA 200102//EN",schemadtd);
105         xmlParser.redirectEntity("jsp_2_0.xsd",jsp20xsd);
106         xmlParser.redirectEntity("http://java.sun.com/xml/ns/j2ee/jsp_2_0.xsd",jsp20xsd);
107         xmlParser.redirectEntity("jsp_2_1.xsd",jsp21xsd);
108         xmlParser.redirectEntity("http://java.sun.com/xml/ns/javaee/jsp_2_1.xsd",jsp21xsd);
109         xmlParser.redirectEntity("j2ee_1_4.xsd",j2ee14xsd);
110         xmlParser.redirectEntity("http://java.sun.com/xml/ns/j2ee/j2ee_1_4.xsd",j2ee14xsd);
111         xmlParser.redirectEntity("web-app_2_4.xsd",webapp24xsd);
112         xmlParser.redirectEntity("http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd",webapp24xsd);
113         xmlParser.redirectEntity("web-app_2_5.xsd",webapp25xsd);
114         xmlParser.redirectEntity("http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd",webapp25xsd);
115         xmlParser.redirectEntity("xml.xsd",xmlxsd);
116         xmlParser.redirectEntity("http://www.w3.org/2001/xml.xsd",xmlxsd);
117         xmlParser.redirectEntity("datatypes.dtd",datatypesdtd);
118         xmlParser.redirectEntity("http://www.w3.org/2001/datatypes.dtd",datatypesdtd);
119         xmlParser.redirectEntity("j2ee_web_services_client_1_1.xsd",webservice11xsd);
120         xmlParser.redirectEntity("http://www.ibm.com/webservices/xsd/j2ee_web_services_client_1_1.xsd",webservice11xsd);
121         xmlParser.redirectEntity("javaee_web_services_client_1_2.xsd",webservice12xsd);
122         xmlParser.redirectEntity("http://www.ibm.com/webservices/xsd/javaee_web_services_client_1_2.xsd",webservice12xsd);
123 
124         return xmlParser;
125     }
126 
127     /* ------------------------------------------------------------------------------- */
128     public void setWebAppContext (WebAppContext context)
129     {
130         _context = context;
131     }
132 
133     /* ------------------------------------------------------------------------------- */
134     public WebAppContext getWebAppContext()
135     {
136         return _context;
137     }
138 
139     /* ------------------------------------------------------------------------------- */
140     /** Configure ClassPath.
141      */
142     public  void configureClassLoader()
143     throws Exception
144     {
145     }
146 
147     /* ------------------------------------------------------------------------------- */
148     public void configureDefaults() throws Exception
149     {
150         //cannot configure if the context is already started
151         if (_context.isStarted())
152         {
153             if (Log.isDebugEnabled()){Log.debug("Cannot configure webapp after it is started");}
154             return;
155         }
156         String defaultsDescriptor=getWebAppContext().getDefaultsDescriptor();
157         if(defaultsDescriptor!=null&&defaultsDescriptor.length()>0)
158         {
159             Resource dftResource=Resource.newSystemResource(defaultsDescriptor);
160             if(dftResource==null)
161                 dftResource=Resource.newResource(defaultsDescriptor);
162             configure(dftResource.getURL().toString());
163             _defaultWelcomeFileList=_welcomeFiles!=null;
164         }
165     }
166 
167     /* ------------------------------------------------------------------------------- */
168     public void configureWebApp() throws Exception
169     {
170         //cannot configure if the context is already started
171         if (_context.isStarted())
172         {
173             if (Log.isDebugEnabled())
174                 Log.debug("Cannot configure webapp after it is started");
175             return;
176         }
177 
178         URL webxml=findWebXml();
179         if (webxml!=null)
180             configure(webxml.toString());
181        
182         String overrideDescriptor=getWebAppContext().getOverrideDescriptor();
183         if(overrideDescriptor!=null&&overrideDescriptor.length()>0)
184         {
185             Resource orideResource=Resource.newSystemResource(overrideDescriptor);
186             if(orideResource==null)
187                 orideResource=Resource.newResource(overrideDescriptor);
188             _xmlParser.setValidating(false);
189             configure(orideResource.getURL().toString());
190         }
191     }
192 
193     /* ------------------------------------------------------------------------------- */
194     protected URL findWebXml() throws IOException, MalformedURLException
195     {
196         String descriptor=getWebAppContext().getDescriptor();
197         if (descriptor!=null)
198         {
199             Resource web= Resource.newResource(descriptor);
200             if (web.exists()&& !web.isDirectory())
201                 return web.getURL();
202         }
203 
204         Resource web_inf=getWebAppContext().getWebInf();
205         if(web_inf!=null && web_inf.isDirectory())
206         {
207             // do web.xml file
208             Resource web=web_inf.addPath("web.xml");
209             if(web.exists()) 
210                 return web.getURL();
211             Log.debug("No WEB-INF/web.xml in "+getWebAppContext().getWar()
212                     +". Serving files and default/dynamic servlets only");
213         }
214         return null;
215     }
216     
217     /* ------------------------------------------------------------------------------- */
218     public void configure(String webXml) throws Exception
219     {
220         XmlParser.Node config=null;
221         config=_xmlParser.parse(webXml);
222         initialize(config);
223     }
224 
225     /* ------------------------------------------------------------------------------- */
226     public void deconfigureWebApp() throws Exception
227     {
228         // TODO preserve any configuration that pre-existed.
229 
230         _servletHandler = getWebAppContext().getServletHandler();
231 
232         _servletHandler.setFilters(null);
233         _servletHandler.setFilterMappings(null);
234         _servletHandler.setServlets(null);
235         _servletHandler.setServletMappings(null);
236 
237         getWebAppContext().setEventListeners(null);
238         getWebAppContext().setWelcomeFiles(null);
239         if (getWebAppContext().getSecurityHandler() != null)
240             getWebAppContext().getSecurityHandler().setConstraintMappings(null);
241 
242         if (getWebAppContext().getErrorHandler() instanceof ErrorPageErrorHandler)
243             ((ErrorPageErrorHandler)getWebAppContext().getErrorHandler()).setErrorPages(null);
244 
245         // TODO remove classpaths from classloader
246     }
247 
248     /* ------------------------------------------------------------ */
249     protected void initialize(XmlParser.Node config) throws ClassNotFoundException,UnavailableException
250     {
251         _servletHandler = getWebAppContext().getServletHandler();
252         // Get any existing servlets and mappings.
253         _filters=LazyList.array2List(_servletHandler.getFilters());
254         _filterMappings=LazyList.array2List(_servletHandler.getFilterMappings());
255         _servlets=LazyList.array2List(_servletHandler.getServlets());
256         _servletMappings=LazyList.array2List(_servletHandler.getServletMappings());
257 
258         _listeners = LazyList.array2List(getWebAppContext().getEventListeners());
259         _welcomeFiles = LazyList.array2List(getWebAppContext().getWelcomeFiles());
260         _constraintMappings = LazyList.array2List(getWebAppContext().getSecurityHandler().getConstraintMappings());
261 
262         _errorPages = getWebAppContext().getErrorHandler() instanceof ErrorPageErrorHandler ?
263                         ((ErrorPageErrorHandler)getWebAppContext().getErrorHandler()).getErrorPages():null;
264 
265         String version=config.getAttribute("version","DTD");
266         if ("2.5".equals(version))
267             _version=25;
268         else if ("2.4".equals(version))
269             _version=24;
270         else if ("DTD".equals(version))
271         {
272             _version=23;
273             String dtd=_xmlParser.getDTD();
274             if (dtd!=null && dtd.indexOf("web-app_2_2")>=0)
275                 _version=22;
276         }
277                         
278         Iterator iter=config.iterator();
279         XmlParser.Node node=null;
280         while(iter.hasNext())
281         {
282             try
283             {
284                 Object o=iter.next();
285                 if(!(o instanceof XmlParser.Node))
286                     continue;
287                 node=(XmlParser.Node)o;
288                 String name=node.getTag();
289                 initWebXmlElement(name,node);
290             }
291             catch(ClassNotFoundException e)
292             {
293                 throw e;
294             }
295             catch(Exception e)
296             {
297                 Log.warn("Configuration problem at "+node,e);
298                 throw new UnavailableException("Configuration problem");
299             }
300         }
301         
302         _servletHandler.setFilters((FilterHolder[])LazyList.toArray(_filters,FilterHolder.class));
303         _servletHandler.setFilterMappings((FilterMapping[])LazyList.toArray(_filterMappings,FilterMapping.class));
304         _servletHandler.setServlets((ServletHolder[])LazyList.toArray(_servlets,ServletHolder.class));
305         _servletHandler.setServletMappings((ServletMapping[])LazyList.toArray(_servletMappings,ServletMapping.class));
306 
307         getWebAppContext().setEventListeners((EventListener[])LazyList.toArray(_listeners,EventListener.class));
308         getWebAppContext().setWelcomeFiles((String[])LazyList.toArray(_welcomeFiles,String.class));
309         getWebAppContext().getSecurityHandler().setConstraintMappings((ConstraintMapping[])LazyList.toArray(_constraintMappings, ConstraintMapping.class));
310 
311         if (_errorPages!=null && getWebAppContext().getErrorHandler() instanceof ErrorPageErrorHandler)
312             ((ErrorPageErrorHandler)getWebAppContext().getErrorHandler()).setErrorPages(_errorPages);
313 
314     }
315 
316     /* ------------------------------------------------------------ */
317     /**
318      * Handle web.xml element. This method is called for each top level element within the web.xml
319      * file. It may be specialized by derived WebAppHandlers to provide additional
320      * configuration and handling.
321      *
322      * @param element The element name
323      * @param node The node containing the element.
324      */
325     protected void initWebXmlElement(String element,XmlParser.Node node) throws Exception
326     {
327         if("display-name".equals(element))
328             initDisplayName(node);
329         else if("description".equals(element))
330         {}
331         else if("context-param".equals(element))
332             initContextParam(node);
333         else if("servlet".equals(element))
334             initServlet(node);
335         else if("servlet-mapping".equals(element))
336             initServletMapping(node);
337         else if("session-config".equals(element))
338             initSessionConfig(node);
339         else if("mime-mapping".equals(element))
340             initMimeConfig(node);
341         else if("welcome-file-list".equals(element))
342             initWelcomeFileList(node);
343         else if("locale-encoding-mapping-list".equals(element))
344             initLocaleEncodingList(node);
345         else if("error-page".equals(element))
346             initErrorPage(node);
347         else if("taglib".equals(element))
348             initTagLib(node);
349         else if("jsp-config".equals(element))
350             initJspConfig(node);
351         else if("resource-ref".equals(element))
352         {
353             if(Log.isDebugEnabled())
354                 Log.debug("No implementation: "+node);
355         }
356         else if("security-constraint".equals(element))
357             initSecurityConstraint(node);
358         else if("login-config".equals(element))
359             initLoginConfig(node);
360         else if("security-role".equals(element))
361             initSecurityRole(node);
362         else if("filter".equals(element))
363             initFilter(node);
364         else if("filter-mapping".equals(element))
365             initFilterMapping(node);
366         else if("listener".equals(element))
367             initListener(node);
368         else if("distributable".equals(element))
369             initDistributable(node);
370         else
371         {
372             if(Log.isDebugEnabled())
373             {
374                 Log.debug("Element {} not handled in {}",element,this);
375                 Log.debug(node.toString());
376             }
377         }
378     }
379 
380     /* ------------------------------------------------------------ */
381     protected void initDisplayName(XmlParser.Node node)
382     {
383         getWebAppContext().setDisplayName(node.toString(false,true));
384     }
385 
386     /* ------------------------------------------------------------ */
387     protected void initContextParam(XmlParser.Node node)
388     {
389         String name=node.getString("param-name",false,true);
390         String value=node.getString("param-value",false,true);
391         if(Log.isDebugEnabled())
392             Log.debug("ContextParam: "+name+"="+value);
393         getWebAppContext().getInitParams().put(name, value);
394     }
395 
396     /* ------------------------------------------------------------ */
397     protected void initFilter(XmlParser.Node node)
398     {
399         String name=node.getString("filter-name",false,true);
400         FilterHolder holder= _servletHandler.getFilter(name);
401         if (holder==null)
402         {
403             holder=_servletHandler.newFilterHolder();
404             holder.setName(name);
405             _filters=LazyList.add(_filters,holder);
406         }
407         
408         String filter_class=node.getString("filter-class",false,true);
409         if (filter_class!=null)
410             holder.setClassName(filter_class);
411 
412         Iterator iter=node.iterator("init-param");
413         while(iter.hasNext())
414         {
415             XmlParser.Node paramNode=(XmlParser.Node)iter.next();
416             String pname=paramNode.getString("param-name",false,true);
417             String pvalue=paramNode.getString("param-value",false,true);
418             holder.setInitParameter(pname, pvalue);
419         }
420         
421     }
422 
423     /* ------------------------------------------------------------ */
424     protected void initFilterMapping(XmlParser.Node node)
425     {
426         String filter_name=node.getString("filter-name",false,true);
427 
428 
429 
430         FilterMapping mapping = new FilterMapping();
431 
432         mapping.setFilterName(filter_name);
433 
434         ArrayList paths = new ArrayList();
435         Iterator iter=node.iterator("url-pattern");
436         while(iter.hasNext())
437         {
438             String p=((XmlParser.Node)iter.next()).toString(false,true);
439             p=normalizePattern(p);
440             paths.add(p);
441         }
442         mapping.setPathSpecs((String[])paths.toArray(new String[paths.size()]));
443 
444 
445         ArrayList names = new ArrayList();
446         iter=node.iterator("servlet-name");
447         while(iter.hasNext())
448         {
449             String n=((XmlParser.Node)iter.next()).toString(false,true);
450             names.add(n);
451         }
452         mapping.setServletNames((String[])names.toArray(new String[names.size()]));
453 
454 
455         int dispatcher=Handler.DEFAULT;
456         iter=node.iterator("dispatcher");
457         while(iter.hasNext())
458         {
459             String d=((XmlParser.Node)iter.next()).toString(false,true);
460             dispatcher|=Dispatcher.type(d);
461         }
462         mapping.setDispatches(dispatcher);
463 
464         _filterMappings=LazyList.add(_filterMappings,mapping);
465     }
466 
467     /* ------------------------------------------------------------ */
468     protected String normalizePattern(String p)
469     {
470         if (p!=null && p.length()>0 && !p.startsWith("/") && !p.startsWith("*"))
471             return "/"+p;
472         return p;
473     }
474 
475     /* ------------------------------------------------------------ */
476     protected void initServlet(XmlParser.Node node) 
477     {
478         String id=node.getAttribute("id");
479 
480         // initialize holder
481         String servlet_name=node.getString("servlet-name",false,true);
482         ServletHolder holder = _servletHandler.getServlet(servlet_name);
483         if (holder==null)
484         {
485             holder=_servletHandler.newServletHolder();
486             holder.setName(servlet_name);
487             _servlets=LazyList.add(_servlets,holder);
488         }
489         
490         // init params
491         Iterator iParamsIter=node.iterator("init-param");
492         while(iParamsIter.hasNext())
493         {
494             XmlParser.Node paramNode=(XmlParser.Node)iParamsIter.next();
495             String pname=paramNode.getString("param-name",false,true);
496             String pvalue=paramNode.getString("param-value",false,true);
497             holder.setInitParameter(pname,pvalue);
498         }
499         
500         String servlet_class=node.getString("servlet-class",false,true);
501         
502         // Handle JSP
503         if (id!=null && id.equals("jsp"))
504         {
505             _jspServletName=servlet_name;
506             _jspServletClass=servlet_class;
507             try
508             {
509                 Loader.loadClass(this.getClass(), servlet_class);
510                 _hasJSP=true;
511             }
512             catch(ClassNotFoundException e)
513             {
514                 Log.info("NO JSP Support for {}, did not find {}",_context.getContextPath(),servlet_class);
515                 _hasJSP=false;
516                 _jspServletClass=servlet_class="org.mortbay.servlet.NoJspServlet";
517             }
518             if (holder.getInitParameter("scratchdir")==null)
519             {
520                 File tmp=getWebAppContext().getTempDirectory();
521                 File scratch=new File(tmp,"jsp");
522                 if (!scratch.exists())
523                     scratch.mkdir();
524                 holder.setInitParameter("scratchdir",scratch.getAbsolutePath());
525                 
526                 if ("?".equals(holder.getInitParameter("classpath")))
527                 {
528                     String classpath=getWebAppContext().getClassPath();
529                     Log.debug("classpath="+classpath);
530                     if (classpath!=null)
531                         holder.setInitParameter("classpath",classpath);
532                 }
533             }
534         }
535         if (servlet_class!=null)
536             holder.setClassName(servlet_class);
537         
538         
539         // Handler JSP file
540         String jsp_file=node.getString("jsp-file",false,true);
541         if (jsp_file!=null)
542         {
543             holder.setForcedPath(jsp_file);
544             holder.setClassName(_jspServletClass);
545         }
546 
547         // handle startup
548         XmlParser.Node startup=node.get("load-on-startup");
549         if(startup!=null)
550         {
551             String s=startup.toString(false,true).toLowerCase();
552             if(s.startsWith("t"))
553             {
554                 Log.warn("Deprecated boolean load-on-startup.  Please use integer");
555                 holder.setInitOrder(1);
556             }
557             else
558             {
559                 int order=0;
560                 try
561                 {
562                     if(s!=null&&s.trim().length()>0)
563                         order=Integer.parseInt(s);
564                 }
565                 catch(Exception e)
566                 {
567                     Log.warn("Cannot parse load-on-startup "+s+". Please use integer");
568                     Log.ignore(e);
569                 }
570                 holder.setInitOrder(order);
571             }
572         }
573         
574         Iterator sRefsIter=node.iterator("security-role-ref");
575         while(sRefsIter.hasNext())
576         {
577             XmlParser.Node securityRef=(XmlParser.Node)sRefsIter.next();
578             String roleName=securityRef.getString("role-name",false,true);
579             String roleLink=securityRef.getString("role-link",false,true);
580             if(roleName!=null&&roleName.length()>0&&roleLink!=null&&roleLink.length()>0)
581             {
582                 if(Log.isDebugEnabled())
583                     Log.debug("link role "+roleName+" to "+roleLink+" for "+this);
584                 holder.setUserRoleLink(roleName,roleLink);
585             }
586             else
587             {
588                 Log.warn("Ignored invalid security-role-ref element: "+"servlet-name="+holder.getName()+", "+securityRef);
589             }
590         }
591         
592         XmlParser.Node run_as=node.get("run-as");
593         if(run_as!=null)
594         {
595             String roleName=run_as.getString("role-name",false,true);
596             if(roleName!=null)
597                 holder.setRunAs(roleName);
598         }
599         
600     }
601 
602     /* ------------------------------------------------------------ */
603     protected void initServletMapping(XmlParser.Node node)
604     {
605         String servlet_name = node.getString("servlet-name",false,true);
606         ServletMapping mapping = new ServletMapping();
607         mapping.setServletName(servlet_name);
608 
609         ArrayList paths = new ArrayList();
610         Iterator iter=node.iterator("url-pattern");
611         while(iter.hasNext())
612         {
613             String p=((XmlParser.Node)iter.next()).toString(false,true);
614             p=normalizePattern(p);
615             paths.add(p);
616         }
617         mapping.setPathSpecs((String[])paths.toArray(new String[paths.size()]));
618 
619         _servletMappings=LazyList.add(_servletMappings,mapping);
620     }
621 
622     /* ------------------------------------------------------------ */
623     protected void initListener(XmlParser.Node node)
624     {
625         String className=node.getString("listener-class",false,true);
626         Object listener=null;
627         try
628         {
629             Class listenerClass=getWebAppContext().loadClass(className);
630             listener=newListenerInstance(listenerClass);
631             if(!(listener instanceof EventListener))
632             {
633                 Log.warn("Not an EventListener: "+listener);
634                 return;
635             }
636             _listeners=LazyList.add(_listeners, listener);
637         }
638         catch(Exception e)
639         {
640             Log.warn("Could not instantiate listener "+className,e);
641             return;
642         }
643     }
644     
645     /* ------------------------------------------------------------ */
646     protected Object newListenerInstance(Class clazz) 
647         throws InstantiationException, IllegalAccessException 
648     {
649                      return clazz.newInstance();
650     }
651     
652     /* ------------------------------------------------------------ */
653     protected void initDistributable(XmlParser.Node node)
654     {
655         // the element has no content, so its simple presence
656         // indicates that the webapp is distributable...
657         WebAppContext wac=getWebAppContext();
658         if (!wac.isDistributable())
659             wac.setDistributable(true);
660     }
661 
662     /* ------------------------------------------------------------ */
663     protected void initSessionConfig(XmlParser.Node node)
664     {
665         XmlParser.Node tNode=node.get("session-timeout");
666         if(tNode!=null)
667         {
668             int timeout=Integer.parseInt(tNode.toString(false,true));
669             getWebAppContext().getSessionHandler().getSessionManager().setMaxInactiveInterval(timeout*60);
670         }
671     }
672 
673     /* ------------------------------------------------------------ */
674     protected void initMimeConfig(XmlParser.Node node)
675     {
676         String extension=node.getString("extension",false,true);
677         if(extension!=null&&extension.startsWith("."))
678             extension=extension.substring(1);
679         String mimeType=node.getString("mime-type",false,true);
680         getWebAppContext().getMimeTypes().addMimeMapping(extension, mimeType);
681     }
682 
683     /* ------------------------------------------------------------ */
684     protected void initWelcomeFileList(XmlParser.Node node)
685     {
686         if (_defaultWelcomeFileList)
687             _welcomeFiles=null; // erase welcome files from default web.xml 
688         
689         _defaultWelcomeFileList=false;
690         Iterator iter=node.iterator("welcome-file");
691         while(iter.hasNext())
692         {
693             XmlParser.Node indexNode=(XmlParser.Node)iter.next();
694             String welcome=indexNode.toString(false,true);
695             _welcomeFiles=LazyList.add(_welcomeFiles,welcome);
696         }
697     }
698 
699     /* ------------------------------------------------------------ */
700     protected void initLocaleEncodingList(XmlParser.Node node)
701     {
702         Iterator iter=node.iterator("locale-encoding-mapping");
703         while(iter.hasNext())
704         {
705             XmlParser.Node mapping=(XmlParser.Node)iter.next();
706             String locale=mapping.getString("locale",false,true);
707             String encoding=mapping.getString("encoding",false,true);
708             getWebAppContext().addLocaleEncoding(locale,encoding);
709         }
710     }
711 
712     /* ------------------------------------------------------------ */
713     protected void initErrorPage(XmlParser.Node node)
714     {
715         String error=node.getString("error-code",false,true);
716         if(error==null||error.length()==0)
717             error=node.getString("exception-type",false,true);
718         String location=node.getString("location",false,true);
719 
720         if (_errorPages==null)
721             _errorPages=new HashMap();
722         _errorPages.put(error,location);
723     }
724 
725     /* ------------------------------------------------------------ */
726     protected void initTagLib(XmlParser.Node node)
727     {
728         String uri=node.getString("taglib-uri",false,true);
729         String location=node.getString("taglib-location",false,true);
730 
731         getWebAppContext().setResourceAlias(uri,location);
732     }
733 
734     /* ------------------------------------------------------------ */
735     protected void initJspConfig(XmlParser.Node node)
736     {
737         for (int i=0;i<node.size();i++)
738         {
739             Object o=node.get(i);
740             if (o instanceof XmlParser.Node && "taglib".equals(((XmlParser.Node)o).getTag()))
741                 initTagLib((XmlParser.Node)o);
742         }
743         
744         // Map URLs from jsp property groups to JSP servlet.
745         // this is more JSP stupidness creaping into the servlet spec
746         Iterator iter=node.iterator("jsp-property-group");
747         Object paths=null;
748         while(iter.hasNext())
749         {
750             XmlParser.Node group=(XmlParser.Node)iter.next();
751             Iterator iter2 = group.iterator("url-pattern");
752             while (iter2.hasNext())
753             {
754                 String url = ((XmlParser.Node) iter2.next()).toString(false, true);
755                 url=normalizePattern(url);
756                 paths=LazyList.add(paths,url);
757             }
758         }
759 
760         if (LazyList.size(paths)>0)
761         {
762             String jspName=getJSPServletName();
763             if (jspName!=null)
764             {
765                 ServletMapping mapping = new ServletMapping();
766                 mapping.setServletName(jspName);
767                 mapping.setPathSpecs(LazyList.toStringArray(paths));
768                 _servletMappings=LazyList.add(_servletMappings,mapping);
769             }
770         }
771     }
772 
773     /* ------------------------------------------------------------ */
774     protected void initSecurityConstraint(XmlParser.Node node)
775     {
776         Constraint scBase = new Constraint();
777 
778         try
779         {
780             XmlParser.Node auths = node.get("auth-constraint");
781             
782             if (auths != null)
783             {
784                 scBase.setAuthenticate(true);
785                 // auth-constraint
786                 Iterator iter = auths.iterator("role-name");
787                 Object roles=null;
788                 while (iter.hasNext())
789                 {
790                     String role = ((XmlParser.Node) iter.next()).toString(false, true);
791                     roles=LazyList.add(roles,role);
792                 }
793                 scBase.setRoles(LazyList.toStringArray(roles));
794             }
795             
796             XmlParser.Node data = node.get("user-data-constraint");
797             if (data != null)
798             {
799                 data = data.get("transport-guarantee");
800                 String guarantee = data.toString(false, true).toUpperCase();
801                 if (guarantee == null || guarantee.length() == 0 || "NONE".equals(guarantee))
802                     scBase.setDataConstraint(Constraint.DC_NONE);
803                 else if ("INTEGRAL".equals(guarantee))
804                     scBase.setDataConstraint(Constraint.DC_INTEGRAL);
805                 else if ("CONFIDENTIAL".equals(guarantee))
806                     scBase.setDataConstraint(Constraint.DC_CONFIDENTIAL);
807                 else
808                 {
809                     Log.warn("Unknown user-data-constraint:" + guarantee);
810                     scBase.setDataConstraint(Constraint.DC_CONFIDENTIAL);
811                 }
812             }
813             Iterator iter = node.iterator("web-resource-collection");
814             while (iter.hasNext())
815             {
816                 XmlParser.Node collection = (XmlParser.Node) iter.next();
817                 String name = collection.getString("web-resource-name", false, true);
818                 Constraint sc = (Constraint) scBase.clone();
819                 sc.setName(name);
820 
821 
822                 Iterator iter2 = collection.iterator("url-pattern");
823                 while (iter2.hasNext())
824                 {
825                     String url = ((XmlParser.Node) iter2.next()).toString(false, true);
826                     url=normalizePattern(url);
827                     
828                     Iterator iter3 = collection.iterator("http-method");
829                     if (iter3.hasNext())
830                     {
831                         while (iter3.hasNext())
832                         {
833                             String method=((XmlParser.Node) iter3.next()).toString(false, true);
834                             ConstraintMapping mapping = new ConstraintMapping();
835                             mapping.setMethod(method);
836                             mapping.setPathSpec(url);
837                             mapping.setConstraint(sc);
838                             _constraintMappings=LazyList.add(_constraintMappings,mapping);
839                         }
840                     }
841                     else
842                     {
843                         ConstraintMapping mapping = new ConstraintMapping();
844                         mapping.setPathSpec(url);
845                         mapping.setConstraint(sc);
846                         _constraintMappings=LazyList.add(_constraintMappings,mapping);
847                     }
848                 }
849             }
850         }
851         catch (CloneNotSupportedException e)
852         {
853             Log.warn(e);
854         }
855 
856     }
857 
858     /* ------------------------------------------------------------ */
859     protected void initLoginConfig(XmlParser.Node node)
860     {
861         XmlParser.Node method=node.get("auth-method");
862         FormAuthenticator _formAuthenticator=null;
863         if(method!=null)
864         {
865             Authenticator authenticator=null;
866             String m=method.toString(false,true);
867             if(Constraint.__FORM_AUTH.equals(m))
868                 authenticator=_formAuthenticator=new FormAuthenticator();
869             else if(Constraint.__BASIC_AUTH.equals(m))
870                 authenticator=new BasicAuthenticator();
871             else if(Constraint.__DIGEST_AUTH.equals(m))
872                 authenticator=new DigestAuthenticator();
873             else if(Constraint.__CERT_AUTH.equals(m))
874                 authenticator=new ClientCertAuthenticator();
875             else if(Constraint.__CERT_AUTH2.equals(m))
876                 authenticator=new ClientCertAuthenticator();
877             else
878                 Log.warn("UNKNOWN AUTH METHOD: "+m);
879             getWebAppContext().getSecurityHandler().setAuthenticator(authenticator);
880         }
881         XmlParser.Node name=node.get("realm-name");
882 
883         UserRealm[] realms=ContextHandler.getCurrentContext().getContextHandler().getServer().getUserRealms();
884 
885         String realm_name=name==null?"default":name.toString(false,true);
886 
887         UserRealm realm=getWebAppContext().getSecurityHandler().getUserRealm();
888         for (int i=0;realm==null && realms!=null && i<realms.length; i++)
889         {
890             if (realms[i]!=null && realm_name.equals(realms[i].getName()))
891                 realm=realms[i];
892         }
893 
894         if (realm==null)
895         {
896             String msg = "Unknown realm: "+realm_name;
897             Log.warn(msg);
898         }
899         else
900             getWebAppContext().getSecurityHandler().setUserRealm(realm);
901 
902         
903         XmlParser.Node formConfig=node.get("form-login-config");
904         if(formConfig!=null)
905         {
906             if(_formAuthenticator==null)
907                 Log.warn("FORM Authentication miss-configured");
908             else
909             {
910                 XmlParser.Node loginPage=formConfig.get("form-login-page");
911                 if(loginPage!=null)
912                     _formAuthenticator.setLoginPage(loginPage.toString(false,true));
913                 XmlParser.Node errorPage=formConfig.get("form-error-page");
914                 if(errorPage!=null)
915                 {
916                     String ep=errorPage.toString(false,true);
917                     _formAuthenticator.setErrorPage(ep);
918                 }
919             }
920         }
921     }
922 
923     /* ------------------------------------------------------------ */
924     protected void initSecurityRole(XmlParser.Node node)
925     {}
926 
927  
928     
929 
930     /* ------------------------------------------------------------ */
931     protected String getJSPServletName()
932     {
933         if (_jspServletName==null)
934         {
935             Map.Entry entry= _context.getServletHandler().getHolderEntry("test.jsp");
936             if (entry!=null)
937             {
938                 ServletHolder holder=(ServletHolder)entry.getValue();
939                 _jspServletName=holder.getName();
940             }
941         }
942         return _jspServletName;
943     }
944 }