/**
* Copyright © 2002 Instituto Superior Técnico
*
* This file is part of FenixEdu Academic.
*
* FenixEdu Academic 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 3 of the License, or
* (at your option) any later version.
*
* FenixEdu Academic 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 FenixEdu Academic. If not, see <http://www.gnu.org/licenses/>.
*/
package org.fenixedu.academic.ui.struts.action.publico;
import java.io.DataOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.fenixedu.academic.domain.File;
import org.fenixedu.academic.domain.Person;
import org.fenixedu.academic.predicate.AccessControl;
import org.fenixedu.academic.ui.struts.action.base.FenixAction;
import org.fenixedu.bennu.struts.annotations.Mapping;
import pt.ist.fenixframework.FenixFramework;
@Mapping(module = "publico", path = "/files")
public class FileDownload extends FenixAction {
@Override
public ActionForward execute(final ActionMapping mapping, final ActionForm actionForm, final HttpServletRequest request,
final HttpServletResponse response) throws Exception {
final String oid = request.getParameter("oid");
final File file = FenixFramework.getDomainObject(oid);
if (file == null) {
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
response.getWriter().write(HttpStatus.getStatusText(HttpStatus.SC_BAD_REQUEST));
response.getWriter().close();
} else {
final Person person = AccessControl.getPerson();
if (!file.isPrivate() || file.isPersonAllowedToAccess(person)) {
response.setContentType(file.getContentType());
response.addHeader("Content-Disposition", "attachment; filename=" + file.getFilename());
response.setContentLength(file.getSize().intValue());
final DataOutputStream dos = new DataOutputStream(response.getOutputStream());
dos.write(file.getContents());
dos.close();
} else if (file.isPrivate() && person == null) {
response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
response.getWriter().write(HttpStatus.getStatusText(HttpStatus.SC_UNAUTHORIZED));
response.getWriter().close();
} else {
response.setStatus(HttpServletResponse.SC_FORBIDDEN);
response.getWriter().write(HttpStatus.getStatusText(HttpStatus.SC_FORBIDDEN));
response.getWriter().close();
}
}
return null;
}
}