/*******************************************************************************
* 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.ofbiz.webapp.ftl;
import java.io.IOException;
import java.io.Writer;
import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import freemarker.core.Environment;
import freemarker.ext.beans.BeanModel;
import freemarker.template.SimpleScalar;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateScalarModel;
import freemarker.template.TemplateTransformModel;
import org.ofbiz.webapp.control.RequestHandler;
/**
* OfbizUrlTransform - Freemarker Transform for URLs (links)
*/
public class OfbizUrlTransform implements TemplateTransformModel {
public boolean checkArg(Map args, String key, boolean defaultValue) {
if (!args.containsKey(key)) {
return defaultValue;
} else {
Object o = args.get(key);
if (o instanceof SimpleScalar) {
SimpleScalar s = (SimpleScalar) o;
return "true".equalsIgnoreCase(s.getAsString());
}
return defaultValue;
}
}
public Writer getWriter(final Writer out, Map args) {
final StringBuffer buf = new StringBuffer();
final boolean fullPath = checkArg(args, "fullPath", false);
final boolean secure = checkArg(args, "secure", false);
final boolean encode = checkArg(args, "encode", true);
return new Writer(out) {
public void write(char cbuf[], int off, int len) {
buf.append(cbuf, off, len);
}
public void flush() throws IOException {
out.flush();
}
public void close() throws IOException {
try {
Environment env = Environment.getCurrentEnvironment();
BeanModel req = (BeanModel) env.getVariable("request");
BeanModel res = (BeanModel) env.getVariable("response");
Object prefix = env.getVariable("urlPrefix");
if (req != null) {
HttpServletRequest request = (HttpServletRequest) req.getWrappedObject();
ServletContext ctx = (ServletContext) request.getAttribute("servletContext");
HttpServletResponse response = null;
if (res != null) {
response = (HttpServletResponse) res.getWrappedObject();
}
// make the link
RequestHandler rh = (RequestHandler) ctx.getAttribute("_REQUEST_HANDLER_");
out.write(rh.makeLink(request, response, buf.toString(), fullPath, secure, encode));
} else if (prefix != null) {
if (prefix instanceof TemplateScalarModel) {
TemplateScalarModel s = (TemplateScalarModel) prefix;
String prefixString = s.getAsString();
String bufString = buf.toString();
boolean prefixSlash = prefixString.endsWith("/");
boolean bufSlash = bufString.startsWith("/");
if (prefixSlash && bufSlash) {
bufString = bufString.substring(1);
} else if (!prefixSlash && !bufSlash) {
bufString = "/" + bufString;
}
out.write(prefixString + bufString);
}
} else {
out.write(buf.toString());
}
} catch (TemplateModelException e) {
throw new IOException(e.getMessage());
}
}
};
}
}