/*
* JBoss, a division of Red Hat
* Copyright 2010, Red Hat Middleware, LLC, and individual
* contributors as indicated by the @authors tag. See the
* copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.gatein.wsrp.consumer.handlers;
import org.gatein.common.io.IOTools;
import org.gatein.common.util.MultiValuedPropertyMap;
import org.gatein.common.util.Tools;
import org.gatein.pc.api.invocation.response.ResponseProperties;
import org.gatein.wsrp.MIMEUtils;
import org.gatein.wsrp.WSRPTypeFactory;
import org.gatein.wsrp.consumer.spi.WSRPConsumerSPI;
import org.gatein.wsrp.handler.CookieUtil;
import org.gatein.wsrp.handler.RequestHeaderClientHandler;
import org.oasis.wsrp.v2.GetResource;
import org.oasis.wsrp.v2.NamedString;
import org.oasis.wsrp.v2.ResourceContext;
import org.oasis.wsrp.v2.ResourceResponse;
import java.io.BufferedWriter;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* @author <a href="mailto:chris.laprun@jboss.com">Chris Laprun</a>
* @version $Revision$
*/
public class DirectResourceServingHandler extends ResourceHandler
{
protected DirectResourceServingHandler(WSRPConsumerSPI consumer)
{
super(consumer);
}
@Override
protected ResourceResponse performRequest(GetResource getResource) throws Exception
{
// if we perform the request with this handler, that means that the invocation was dispatched this way
// and the initiliazation of the request done in ResourceHandler.prepareRequest put the URL in the resource ID
String resourceURL = getResource.getResourceParams().getResourceID();
URL url = new URL(resourceURL);
URLConnection urlConnection = url.openConnection();
final String cookieValue = RequestHeaderClientHandler.createCoalescedCookieFromCurrentInfo();
if (cookieValue.length() != 0)
{
urlConnection.addRequestProperty(CookieUtil.COOKIE, cookieValue);
}
// adjusts the http method and adds form parameters, if any
if (urlConnection instanceof HttpURLConnection)
{
HttpURLConnection httpURLConnection = (HttpURLConnection) urlConnection;
String httpVerb = getResource.getResourceParams().getClientData().getRequestVerb();
httpURLConnection.setRequestMethod(httpVerb);
List<NamedString> namedStrings = getResource.getResourceParams().getFormParameters();
if (namedStrings != null && "POST".equalsIgnoreCase(httpVerb))
{
httpURLConnection.setDoOutput(true);
OutputStream os = httpURLConnection.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os));
boolean first=true;
for (NamedString name : namedStrings)
{
if (!first)
{
writer.write("&");
}
writer.write(URLEncoder.encode(name.getName()));
writer.write("=");
writer.write(URLEncoder.encode(name.getName()));
first=false;
}
writer.flush();
writer.close();
os.close();
}
}
String contentType = urlConnection.getContentType();
// init ResponseProperties for ContentResponse result
Map<String, List<String>> headers = urlConnection.getHeaderFields();
ResponseProperties props = new ResponseProperties();
MultiValuedPropertyMap<String> transportHeaders = props.getTransportHeaders();
for (Map.Entry<String, List<String>> entry : headers.entrySet())
{
String key = entry.getKey();
if (key != null)
{
List<String> values = entry.getValue();
if (values != null)
{
if (CookieUtil.SET_COOKIE.equals(key))
{
final List<CookieUtil.Cookie> cookies = CookieUtil.extractCookiesFrom(url, values);
List<javax.servlet.http.Cookie> propCookies = props.getCookies();
for (CookieUtil.Cookie cookie : cookies)
{
propCookies.add(CookieUtil.convertFrom(cookie));
}
}
else
{
for (String value : values)
{
transportHeaders.addValue(key, value);
}
}
}
}
}
int length = urlConnection.getContentLength();
// if length is not known, use a default value
length = (length > 0 ? length : Tools.DEFAULT_BUFFER_SIZE * 8);
byte[] bytes = IOTools.getBytes(urlConnection.getInputStream(), length);
ResourceContext resourceContext;
// GTNCOMMON-14
if (MIMEUtils.isInterpretableAsText(contentType))
{
// determine the charset of the content, defaulting to UTF-8 if there isn't one
String charset = MIMEUtils.getCharsetFrom(contentType);
String markup = new String(bytes, charset);
resourceContext = WSRPTypeFactory.createResourceContext(contentType, markup, null);
// process markup if needed
if (MIMEUtils.needsRewriting(contentType))
{
resourceContext.setRequiresRewriting(true);
}
}
else
{
resourceContext = WSRPTypeFactory.createResourceContext(contentType, null, bytes);
resourceContext.setRequiresRewriting(false);
}
return WSRPTypeFactory.createResourceResponse(resourceContext);
}
}