/*******************************************************************************
* 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.http.HttpServletRequest;
import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.StringUtil;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.webapp.taglib.ContentUrlTag;
import org.owasp.esapi.errors.EncodingException;
import freemarker.core.Environment;
import freemarker.ext.beans.BeanModel;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateScalarModel;
import freemarker.template.TemplateTransformModel;
/**
* OfbizContentTransform - Freemarker Transform for content links
*/
public class OfbizContentTransform implements TemplateTransformModel {
public final static String module = OfbizContentTransform.class.getName();
private static String getArg(Map args, String key) {
String result = "";
Object obj = args.get(key);
if (obj != null) {
if (Debug.verboseOn()) Debug.logVerbose("Arg Object : " + obj.getClass().getName(), module);
if (obj instanceof TemplateScalarModel) {
TemplateScalarModel s = (TemplateScalarModel) obj;
try {
result = s.getAsString();
} catch (TemplateModelException e) {
Debug.logError(e, "Template Exception", module);
}
} else {
result = obj.toString();
}
}
return result;
}
public Writer getWriter(final Writer out, Map args) {
final StringBuilder buf = new StringBuilder();
final String imgSize = OfbizContentTransform.getArg(args, "variant");
return new Writer(out) {
@Override
public void write(char cbuf[], int off, int len) {
buf.append(cbuf, off, len);
}
@Override
public void flush() throws IOException {
out.flush();
}
@Override
public void close() throws IOException {
try {
Environment env = Environment.getCurrentEnvironment();
BeanModel req = (BeanModel)env.getVariable("request");
HttpServletRequest request = req == null ? null : (HttpServletRequest) req.getWrappedObject();
String requestUrl = buf.toString();
try {
requestUrl = StringUtil.defaultWebEncoder.decodeFromURL(requestUrl);
} catch (EncodingException e) {
Debug.logError(e, module);
}
// make the link
StringBuilder newURL = new StringBuilder();
ContentUrlTag.appendContentPrefix(request, newURL);
if ((newURL.length() > 0 && newURL.charAt(newURL.length() - 1) != '/')
&& (requestUrl.length()> 0 && requestUrl.charAt(0) != '/')) {
newURL.append('/');
}
if(UtilValidate.isNotEmpty(imgSize)){
if(!"/images/defaultImage.jpg".equals(requestUrl)){
int index = requestUrl.lastIndexOf(".");
if (index > 0) {
String suffix = requestUrl.substring(index);
String imgName = requestUrl.substring(0, index);
requestUrl = imgName + "-" + imgSize + suffix;
}
}
}
newURL.append(requestUrl);
out.write(newURL.toString());
} catch (TemplateModelException e) {
throw new IOException(e.getMessage());
}
}
};
}
}