/*==========================================================================*\
| $Id: HttpsProtocol.java,v 1.2 2010/09/14 18:13:30 aallowat Exp $
|*-------------------------------------------------------------------------*|
| Copyright (C) 2006-2009 Virginia Tech
|
| This file is part of Web-CAT Electronic Submitter.
|
| Web-CAT is free software; you can redistribute it and/or modify
| it under the terms of the GNU General Public License as published by
| the Free Software Foundation; either version 2 of the License, or
| (at your option) any later version.
|
| Web-CAT 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 General Public License for more details.
|
| You should have received a copy of the GNU General Public License along
| with Web-CAT; if not, see <http://www.gnu.org/licenses/>.
\*==========================================================================*/
package org.webcat.submitter.internal.protocols;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.net.ssl.HttpsURLConnection;
import org.webcat.submitter.ILongRunningTask;
import org.webcat.submitter.IProtocol;
import org.webcat.submitter.IStringEncoder;
import org.webcat.submitter.SubmissionManifest;
import org.webcat.submitter.URLStringEncoder;
import org.webcat.submitter.internal.utility.MultipartBuilder;
import org.webcat.submitter.targets.AssignmentTarget;
//--------------------------------------------------------------------------
/**
* A protocol for the "https" URI scheme that supports sending the submitted
* file as part of a secure HTTP POST request to a remote server. This protocol
* generates an HTTP response that can be displayed to the user in a browser
* window.
*
* @author Tony Allevato (Virginia Tech Computer Science)
* @author latest changes by: $Author: aallowat $
* @version $Revision: 1.2 $ $Date: 2010/09/14 18:13:30 $
*/
public class HttpsProtocol implements IProtocol
{
//~ Methods ...............................................................
// ----------------------------------------------------------
/**
* @see IProtocol#submit(SubmissionManifest, ILongRunningTask)
*/
public void submit(SubmissionManifest manifest, ILongRunningTask task)
throws IOException
{
IStringEncoder encoder = new URLStringEncoder();
URL url = manifest.getResolvedTransport(encoder).toURL();
HttpsURLConnection connection =
(HttpsURLConnection)url.openConnection();
MultipartBuilder multipart = new MultipartBuilder(connection);
AssignmentTarget asmt = manifest.getAssignment();
Set<Map.Entry<String, String>> transportParams =
asmt.getTransportParameters().entrySet();
for (Iterator<Map.Entry<String, String>> it = transportParams.
iterator(); it.hasNext();)
{
Map.Entry<String, String> entry = it.next();
String paramName = entry.getKey();
String paramValue = entry.getValue();
String convertedValue = manifest.resolveParameters(
paramValue, null);
if (paramName.startsWith("$file."))
{
String key = paramName.substring(6);
OutputStream outStream = multipart.beginWriteFile(key,
convertedValue, "application/octet-stream");
manifest.packageContentsIntoStream(outStream, task, null);
multipart.endWriteFile();
}
else
{
multipart.writeParameter(paramName, convertedValue);
}
}
multipart.close();
InputStream inStream = connection.getInputStream();
StringBuffer buffer = new StringBuffer();
int nextChar = inStream.read();
while (nextChar != -1)
{
buffer.append((char)nextChar);
nextChar = inStream.read();
}
inStream.close();
response = buffer.toString();
}
// ----------------------------------------------------------
/**
* @see IProtocol#hasResponse()
*/
public boolean hasResponse()
{
return true;
}
// ----------------------------------------------------------
/**
* @see IProtocol#getResponse()
*/
public String getResponse()
{
return response;
}
//~ Static/instance variables .............................................
/* The response sent by the HTTPS server. */
private String response;
}