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https://github.com/Alfresco/alfresco-community-repo.git
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3131468788
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5977 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
336 lines
10 KiB
Java
336 lines
10 KiB
Java
/*
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* Copyright (C) 2005-2007 Alfresco Software Limited.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* As a special exception to the terms and conditions of version 2.0 of
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* the GPL, you may redistribute this Program in connection with Free/Libre
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* and Open Source Software ("FLOSS") applications as described in Alfresco's
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* FLOSS exception. You should have recieved a copy of the text describing
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* the FLOSS exception, and it is also available here:
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* http://www.alfresco.com/legal/licensing
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*/
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package org.alfresco.web.scripts.jsf;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.net.URLDecoder;
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import java.util.Map;
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import javax.faces.component.UIComponent;
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import javax.faces.context.FacesContext;
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import javax.faces.el.ValueBinding;
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import javax.faces.event.AbortProcessingException;
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import javax.faces.event.ActionEvent;
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import javax.faces.event.FacesEvent;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.transaction.RetryingTransactionHelper;
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import org.alfresco.service.cmr.security.AuthorityService;
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import org.alfresco.web.scripts.DeclarativeWebScriptRegistry;
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import org.alfresco.web.scripts.WebScriptMatch;
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import org.alfresco.web.scripts.WebScriptRegistry;
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import org.alfresco.web.scripts.WebScriptRequest;
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import org.alfresco.web.scripts.WebScriptResponse;
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import org.alfresco.web.scripts.WebScriptRuntime;
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import org.alfresco.web.scripts.WebScriptURLRequest;
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import org.alfresco.web.scripts.WebScriptDescription.RequiredAuthentication;
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import org.alfresco.web.ui.common.component.SelfRenderingComponent;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.web.context.WebApplicationContext;
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import org.springframework.web.jsf.FacesContextUtils;
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/**
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* JSF Component implementation for the WebScript component.
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* <p>
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* Responsible for generating a JSF Component specific WebScriptRuntime instance and
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* executing the specified WebScript against the runtime.
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*
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* @author Kevin Roast
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*/
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public class UIWebScript extends SelfRenderingComponent
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{
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private static Log logger = LogFactory.getLog(UIWebScript.class);
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/** WebScript URL to execute */
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private String scriptUrl = null;
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/** User defined script context value */
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private Object context = null;
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private boolean scriptUrlModified = false;
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private WebScriptRegistry registry;
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private RetryingTransactionHelper txnHelper;
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private AuthorityService authorityService;
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/**
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* Default constructor
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*/
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public UIWebScript()
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{
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WebApplicationContext ctx = FacesContextUtils.getRequiredWebApplicationContext(
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FacesContext.getCurrentInstance());
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this.registry = (DeclarativeWebScriptRegistry)ctx.getBean("webscripts.registry");
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this.txnHelper = (RetryingTransactionHelper)ctx.getBean("retryingTransactionHelper");
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this.authorityService = (AuthorityService)ctx.getBean("authorityService");
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}
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/**
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* @see javax.faces.component.UIComponent#getFamily()
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*/
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@Override
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public String getFamily()
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{
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return "org.alfresco.faces.Controls";
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}
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/**
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* @see javax.faces.component.StateHolder#restoreState(javax.faces.context.FacesContext, java.lang.Object)
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*/
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public void restoreState(FacesContext context, Object state)
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{
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Object values[] = (Object[])state;
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// standard component attributes are restored by the super class
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super.restoreState(context, values[0]);
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this.scriptUrl = (String)values[1];
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this.scriptUrlModified = (Boolean)values[2];
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this.context = values[3];
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}
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/**
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* @see javax.faces.component.StateHolder#saveState(javax.faces.context.FacesContext)
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*/
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public Object saveState(FacesContext context)
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{
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Object values[] = new Object[] {
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super.saveState(context), this.scriptUrl, this.scriptUrlModified, this.context};
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return values;
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}
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/* (non-Javadoc)
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* @see javax.faces.component.UIComponentBase#broadcast(javax.faces.event.FacesEvent)
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*/
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@Override
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public void broadcast(FacesEvent event) throws AbortProcessingException
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{
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if (event instanceof WebScriptEvent)
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{
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this.scriptUrlModified = true;
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this.scriptUrl = ((WebScriptEvent)event).Url;
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}
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else
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{
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super.broadcast(event);
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}
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}
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/* (non-Javadoc)
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* @see javax.faces.component.UIComponentBase#decode(javax.faces.context.FacesContext)
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*/
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@Override
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public void decode(FacesContext context)
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{
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Map requestMap = context.getExternalContext().getRequestParameterMap();
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String fieldId = this.getClientId(context);
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String value = (String)requestMap.get(fieldId);
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if (value != null && value.length() != 0)
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{
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// found web-script URL for this component
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try
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{
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String url = URLDecoder.decode(value, "UTF-8");
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queueEvent(new WebScriptEvent(this, url));
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}
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catch (UnsupportedEncodingException e)
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{
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throw new AlfrescoRuntimeException("Unable to decode utf-8 script url.");
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}
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}
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}
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/**
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* @see javax.faces.component.UIComponentBase#encodeBegin(javax.faces.context.FacesContext)
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*/
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@Override
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public void encodeBegin(FacesContext context) throws IOException
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{
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String scriptUrl = getScriptUrl();
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Object scriptContext = getContext();
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if (scriptContext != null)
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{
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// context object supplied, perform simple variable substitution
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if (scriptContext instanceof Map)
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{
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Map<String, Object> scriptContextMap = (Map<String, Object>)scriptContext;
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for (String key : scriptContextMap.keySet())
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{
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scriptUrl = scriptUrl.replace(key, scriptContextMap.get(key).toString());
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}
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}
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else
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{
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// currently we only support {noderef} replacement directly
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// TODO: move the variable substitution into the WebScript engine - pass in
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// a bag of context objects i.e. name/value pairs of well known keys
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// allow common values such as noderef, nodeid, path, user etc.
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scriptUrl = scriptUrl.replace("{noderef}", scriptContext.toString());
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}
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}
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// execute WebScript
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if (logger.isDebugEnabled())
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logger.debug("Processing UIWebScript encodeBegin(): " + scriptUrl);
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WebScriptRuntime runtime = new WebScriptJSFRuntime(context, scriptUrl);
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runtime.executeScript();
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}
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/**
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* Set the scriptUrl
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*
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* @param scriptUrl the scriptUrl
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*/
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public void setScriptUrl(String scriptUrl)
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{
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this.scriptUrl = getFacesContext().getExternalContext().getRequestContextPath() + scriptUrl;
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}
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/**
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* @return the scriptUrl
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*/
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public String getScriptUrl()
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{
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if (this.scriptUrlModified == false)
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{
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ValueBinding vb = getValueBinding("scriptUrl");
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if (vb != null)
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{
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this.scriptUrl = getFacesContext().getExternalContext().getRequestContextPath() +
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(String)vb.getValue(getFacesContext());
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}
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}
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return this.scriptUrl;
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}
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/**
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* @return the user defined script context object
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*/
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public Object getContext()
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{
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ValueBinding vb = getValueBinding("context");
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if (vb != null)
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{
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this.context = vb.getValue(getFacesContext());
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}
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return this.context;
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}
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/**
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* @param context the user defined script context to set
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*/
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public void setContext(Object context)
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{
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this.context = context;
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}
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// ------------------------------------------------------------------------------
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// Inner classes
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/**
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* Class representing the clicking of a webscript url action.
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*/
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public static class WebScriptEvent extends ActionEvent
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{
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public WebScriptEvent(UIComponent component, String url)
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{
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super(component);
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this.Url = url;
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}
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public String Url = null;
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}
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/**
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* Implementation of a WebScriptRuntime for the JSF environment
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*
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* @author Kevin Roast
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*/
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private class WebScriptJSFRuntime extends WebScriptRuntime
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{
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private FacesContext fc;
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private String scriptUrl;
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private String script;
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WebScriptJSFRuntime(FacesContext fc, String scriptUrl)
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{
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super(registry, txnHelper, authorityService);
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this.fc = fc;
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this.scriptUrl = scriptUrl;
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this.script = WebScriptURLRequest.splitURL(scriptUrl)[2];
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}
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/**
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* @see org.alfresco.web.scripts.WebScriptRuntime#authenticate(org.alfresco.web.scripts.WebScriptDescription.RequiredAuthentication, boolean)
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*/
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@Override
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protected boolean authenticate(RequiredAuthentication required, boolean isGuest)
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{
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// JSF component already in an authenticated environment as the
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// /faces servlet filter (or JSF portlet wrapper) is called first
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return true;
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}
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/**
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* @see org.alfresco.web.scripts.WebScriptRuntime#createRequest(org.alfresco.web.scripts.WebScriptMatch)
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*/
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@Override
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protected WebScriptRequest createRequest(WebScriptMatch match)
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{
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return new WebScriptJSFRequest(this.scriptUrl, match);
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}
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/**
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* @see org.alfresco.web.scripts.WebScriptRuntime#createResponse()
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*/
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@Override
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protected WebScriptResponse createResponse()
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{
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return new WebScriptJSFResponse(fc, UIWebScript.this);
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}
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/**
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* @see org.alfresco.web.scripts.WebScriptRuntime#getScriptMethod()
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*/
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@Override
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protected String getScriptMethod()
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{
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return "GET";
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}
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/**
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* @see org.alfresco.web.scripts.WebScriptRuntime#getScriptUrl()
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*/
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@Override
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protected String getScriptUrl()
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{
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return this.script;
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}
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}
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}
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