/*
* Copyright 2007 Zhang, Zheng <oldbig@gmail.com>
*
* This file is part of ZOJ.
*
* ZOJ 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 revision 3 of the License, or (at your option) any later revision.
*
* ZOJ 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 ZOJ. if not, see
* <http://www.gnu.org/licenses/>.
*/
package cn.edu.zju.acm.onlinejudge.action;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import cn.edu.zju.acm.onlinejudge.bean.Problem;
import cn.edu.zju.acm.onlinejudge.bean.Submission;
import cn.edu.zju.acm.onlinejudge.bean.UserProfile;
import cn.edu.zju.acm.onlinejudge.util.ContestManager;
import cn.edu.zju.acm.onlinejudge.util.Utility;
/**
* <p>
* ShowSourceAction
* </p>
*
*
* @author Zhang, Zheng
* @version 2.0
*/
public class ShowSubmissionAction extends BaseAction {
/**
* <p>
* Default constructor.
* </p>
*/
public ShowSubmissionAction() {
// empty
}
/**
* ShowSourceAction.
*
* @param mapping
* action mapping
* @param form
* action form
* @param request
* http servlet request
* @param response
* http servlet response
*
* @return action forward instance
*
* @throws Exception
* any errors happened
*/
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, ContextAdapter context) throws Exception {
HttpServletResponse response = context.getResponse();
long id = Utility.parseLong(context.getRequest().getParameter("submissionId"));
Submission submission = ContestManager.getInstance().getSubmission(id);
if (submission == null) {
response.sendError(404);
return null;
}
// user can always view their own submission
UserProfile user = context.getUserProfile();
if (user == null || user.getId() != submission.getUserProfileId()) {
Problem problem = ContestManager.getInstance().getProblem(submission.getProblemId());
context.setAttribute("problem", problem);
ActionForward forward = this.checkProblemViewSourecPermission(mapping, context, null);
if (forward != null) {
response.sendError(404);
return null;
}
}
response.setContentType("text/plain");
boolean download = "true".equalsIgnoreCase(context.getRequest().getParameter("download"));
if (download) {
response.setHeader("Content-disposition", "attachment; filename=" + id + "." +
submission.getLanguage().getOptions());
}
response.getOutputStream().write(submission.getContent().getBytes());
response.getOutputStream().close();
return null;
}
}