/**
* 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.cxf.jaxrs.impl;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import org.apache.cxf.io.DelegatingInputStream;
import org.apache.cxf.jaxrs.utils.FormUtils;
import org.apache.cxf.jaxrs.utils.HttpUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
import org.apache.cxf.message.Message;
public class HttpServletRequestFilter extends HttpServletRequestWrapper {
private Message m;
private boolean isPostFormRequest;
private MultivaluedMap<String, String> formParams;
public HttpServletRequestFilter(HttpServletRequest request, Message message) {
super(request);
m = message;
isPostFormRequest = FormUtils.isFormPostRequest(m);
}
@Override
public ServletInputStream getInputStream() throws IOException {
InputStream is = m.getContent(InputStream.class);
if (is instanceof DelegatingInputStream) {
is = ((DelegatingInputStream)is).getInputStream();
}
if (is instanceof ServletInputStream) {
return (ServletInputStream)is;
} else {
return super.getInputStream();
}
}
@Override
public String getParameter(String name) {
String[] values = this.getParameterValues(name);
return values == null || values.length == 0 ? null : values[0];
}
@Override
public String[] getParameterValues(String name) {
String[] value = super.getParameterValues(name);
if (value == null && isPostFormRequest) {
readFromParamsIfNeeded();
List<String> values = formParams.get(name);
if (values != null) {
value = values.toArray(new String[]{});
}
}
return value;
}
@Override
public Map<String, String[]> getParameterMap() {
Map<String, String[]> map1 = super.getParameterMap();
if (isPostFormRequest) {
readFromParamsIfNeeded();
Map<String, String[]> map2 = new LinkedHashMap<String, String[]>();
map2.putAll(map1);
for (Map.Entry<String, List<String>> e : formParams.entrySet()) {
map2.put(e.getKey(), e.getValue().toArray(new String[]{}));
}
return Collections.unmodifiableMap(map2);
} else {
return map1;
}
}
@Override
public Enumeration<String> getParameterNames() {
Map<String, String[]> map = this.getParameterMap();
final Iterator<String> it = map.keySet().iterator();
return new Enumeration<String>() {
@Override
public boolean hasMoreElements() {
return it.hasNext();
}
@Override
public String nextElement() {
return it.next();
}
};
}
@SuppressWarnings("unchecked")
private void readFromParamsIfNeeded() {
if (formParams == null) {
if (m.containsKey(FormUtils.FORM_PARAM_MAP)) {
formParams = (MultivaluedMap<String, String>)m.get(FormUtils.FORM_PARAM_MAP);
} else {
formParams = new MetadataMap<String, String>();
MediaType mt = JAXRSUtils.toMediaType((String)m.get(Message.CONTENT_TYPE));
String enc = HttpUtils.getEncoding(mt, StandardCharsets.UTF_8.name());
String body = FormUtils.readBody(m.getContent(InputStream.class), enc);
FormUtils.populateMapFromString(formParams, m, body, enc, true);
}
}
}
}