| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.myfaces.extensions.scripting.jsf.resources.deprecated; |
| |
| import javax.faces.context.ExternalContext; |
| import javax.faces.context.FacesContext; |
| import java.util.Map; |
| |
| /** |
| * A ResourceHandlerSupport implementation for use with standard Java Servlet engines, |
| * ie an engine that supports javax.servlet, and uses a standard web.xml file. |
| * |
| * @author Leonardo Uribe (latest modification by $Author: lu4242 $) |
| * @version $Revision: 946779 $ $Date: 2010-05-20 15:31:42 -0500 (Jue, 20 May 2010) $ |
| * @deprecated |
| */ |
| public class BaseResourceHandlerSupport extends ResourceHandlerSupport |
| { |
| |
| /** |
| * Set the max time in miliseconds set on the "Expires" header for a resource. |
| * (default to one week in miliseconds or 604800000) |
| */ |
| public static final String RESOURCE_MAX_TIME_EXPIRES = "org.apache.myfaces.RESOURCE_MAX_TIME_EXPIRES"; |
| |
| /** |
| * Identifies the FacesServlet mapping in the current request map. |
| */ |
| private static final String CACHED_SERVLET_MAPPING = |
| BaseResourceHandlerSupport.class.getName() + ".CACHED_SERVLET_MAPPING"; |
| |
| private Long _startupTime; |
| |
| private Long _maxTimeExpires; |
| |
| public BaseResourceHandlerSupport() |
| { |
| _startupTime = System.currentTimeMillis(); |
| } |
| |
| public ResourceLoader[] getResourceLoaders() |
| { |
| return null; |
| } |
| |
| public String calculateResourceBasePath(FacesContext facesContext) |
| { |
| FacesServletMapping mapping = getFacesServletMapping(facesContext); |
| ExternalContext externalContext = facesContext.getExternalContext(); |
| |
| if (mapping != null) |
| { |
| String resourceBasePath = null; |
| if (mapping.isExtensionMapping()) |
| { |
| // Mapping using a suffix. In this case we have to strip |
| // the suffix. If we have a url like: |
| // http://localhost:8080/testjsf20/javax.faces.resource/imagen.jpg.jsf?ln=dojo |
| // |
| // The servlet path is /javax.faces.resource/imagen.jpg.jsf |
| // |
| // For obtain the resource name we have to remove the .jsf suffix and |
| // the prefix ResourceHandler.RESOURCE_IDENTIFIER |
| resourceBasePath = externalContext.getRequestServletPath(); |
| int stripPoint = resourceBasePath.lastIndexOf('.'); |
| if (stripPoint > 0) |
| { |
| resourceBasePath = resourceBasePath.substring(0, stripPoint); |
| } |
| } |
| else |
| { |
| // Mapping using prefix. In this case we have to strip |
| // the prefix used for mapping. If we have a url like: |
| // http://localhost:8080/testjsf20/faces/javax.faces.resource/imagen.jpg?ln=dojo |
| // |
| // The servlet path is /faces |
| // and the path info is /javax.faces.resource/imagen.jpg |
| // |
| // For obtain the resource name we have to remove the /faces prefix and |
| // then the prefix ResourceHandler.RESOURCE_IDENTIFIER |
| resourceBasePath = externalContext.getRequestPathInfo(); |
| } |
| return resourceBasePath; |
| } |
| else |
| { |
| //If no mapping is detected, just return the |
| //information follows the servlet path but before |
| //the query string |
| return externalContext.getRequestPathInfo(); |
| } |
| } |
| |
| public boolean isExtensionMapping() |
| { |
| FacesServletMapping mapping = getFacesServletMapping( |
| FacesContext.getCurrentInstance()); |
| if (mapping != null) |
| { |
| if (mapping.isExtensionMapping()) |
| { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public String getMapping() |
| { |
| FacesServletMapping mapping = getFacesServletMapping( |
| FacesContext.getCurrentInstance()); |
| if (mapping != null) |
| { |
| if (mapping.isExtensionMapping()) |
| { |
| return mapping.getExtension(); |
| } |
| else |
| { |
| return mapping.getPrefix(); |
| } |
| } |
| return ""; |
| } |
| |
| /** |
| * Read the web.xml file that is in the classpath and parse its internals to |
| * figure out how the FacesServlet is mapped for the current webapp. |
| */ |
| protected FacesServletMapping getFacesServletMapping(FacesContext context) |
| { |
| Map<Object, Object> attributes = context.getAttributes(); |
| |
| // Has the mapping already been determined during this request? |
| FacesServletMapping mapping = (FacesServletMapping) attributes.get(CACHED_SERVLET_MAPPING); |
| if (mapping == null) |
| { |
| ExternalContext externalContext = context.getExternalContext(); |
| mapping = calculateFacesServletMapping(externalContext.getRequestServletPath(), |
| externalContext.getRequestPathInfo()); |
| |
| attributes.put(CACHED_SERVLET_MAPPING, mapping); |
| } |
| return mapping; |
| } |
| |
| /** |
| * Determines the mapping of the FacesServlet in the web.xml configuration |
| * file. However, there is no need to actually parse this configuration file |
| * as runtime information is sufficient. |
| * |
| * @param servletPath The servletPath of the current request |
| * @param pathInfo The pathInfo of the current request |
| * @return the mapping of the FacesServlet in the web.xml configuration file |
| */ |
| protected static FacesServletMapping calculateFacesServletMapping( |
| String servletPath, String pathInfo) |
| { |
| if (pathInfo != null) |
| { |
| // If there is a "extra path", it's definitely no extension mapping. |
| // Now we just have to determine the path which has been specified |
| // in the url-pattern, but that's easy as it's the same as the |
| // current servletPath. It doesn't even matter if "/*" has been used |
| // as in this case the servletPath is just an empty string according |
| // to the Servlet Specification (SRV 4.4). |
| return FacesServletMapping.createPrefixMapping(servletPath); |
| } |
| else |
| { |
| // In the case of extension mapping, no "extra path" is available. |
| // Still it's possible that prefix-based mapping has been used. |
| // Actually, if there was an exact match no "extra path" |
| // is available (e.g. if the url-pattern is "/faces/*" |
| // and the request-uri is "/context/faces"). |
| int slashPos = servletPath.lastIndexOf('/'); |
| int extensionPos = servletPath.lastIndexOf('.'); |
| if (extensionPos > -1 && extensionPos > slashPos) |
| { |
| String extension = servletPath.substring(extensionPos); |
| return FacesServletMapping.createExtensionMapping(extension); |
| } |
| else |
| { |
| // There is no extension in the given servletPath and therefore |
| // we assume that it's an exact match using prefix-based mapping. |
| return FacesServletMapping.createPrefixMapping(servletPath); |
| } |
| } |
| } |
| |
| public long getStartupTime() |
| { |
| return _startupTime; |
| } |
| |
| public long getMaxTimeExpires() |
| { |
| if (_maxTimeExpires == null) |
| { |
| String time = FacesContext.getCurrentInstance().getExternalContext().getInitParameter(RESOURCE_MAX_TIME_EXPIRES); |
| if (time != null && time.length() > 0) |
| { |
| try |
| { |
| _maxTimeExpires = Long.parseLong(time); |
| } |
| catch (NumberFormatException e) |
| { |
| _maxTimeExpires = 604800000L; |
| } |
| } |
| else |
| { |
| _maxTimeExpires = 604800000L; |
| } |
| } |
| return _maxTimeExpires; |
| } |
| } |