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/*
************************************************************************
******************* CANADIAN ASTRONOMY DATA CENTRE *******************
************** CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES **************
*
* (c) 2014. (c) 2014.
* Government of Canada Gouvernement du Canada
* National Research Council Conseil national de recherches
* Ottawa, Canada, K1A 0R6 Ottawa, Canada, K1A 0R6
* All rights reserved Tous droits réservés
*
* NRC disclaims any warranties, Le CNRC dénie toute garantie
* expressed, implied, or énoncée, implicite ou légale,
* statutory, of any kind with de quelque nature que ce
* respect to the software, soit, concernant le logiciel,
* including without limitation y compris sans restriction
* any warranty of merchantability toute garantie de valeur
* or fitness for a particular marchande ou de pertinence
* purpose. NRC shall not be pour un usage particulier.
* liable in any event for any Le CNRC ne pourra en aucun cas
* damages, whether direct or être tenu responsable de tout
* indirect, special or general, dommage, direct ou indirect,
* consequential or incidental, particulier ou général,
* arising from the use of the accessoire ou fortuit, résultant
* software. Neither the name de l'utilisation du logiciel. Ni
* of the National Research le nom du Conseil National de
* Council of Canada nor the Recherches du Canada ni les noms
* names of its contributors may de ses participants ne peuvent
* be used to endorse or promote être utilisés pour approuver ou
* products derived from this promouvoir les produits dérivés
* software without specific prior de ce logiciel sans autorisation
* written permission. préalable et particulière
* par écrit.
*
* This file is part of the Ce fichier fait partie du projet
* OpenCADC project. OpenCADC.
*
* OpenCADC is free software: OpenCADC est un logiciel libre ;
* you can redistribute it and/or vous pouvez le redistribuer ou le
* modify it under the terms of modifier suivant les termes de
* the GNU Affero General Public la “GNU Affero General Public
* License as published by the License” telle que publiée
* Free Software Foundation, par la Free Software Foundation
* either version 3 of the : soit la version 3 de cette
* License, or (at your option) licence, soit (à votre gré)
* any later version. toute version ultérieure.
*
* OpenCADC is distributed in the OpenCADC est distribué
* hope that it will be useful, dans l’espoir qu’il vous
* but WITHOUT ANY WARRANTY; sera utile, mais SANS AUCUNE
* without even the implied GARANTIE : sans même la garantie
* warranty of MERCHANTABILITY implicite de COMMERCIALISABILITÉ
* or FITNESS FOR A PARTICULAR ni d’ADÉQUATION À UN OBJECTIF
* PURPOSE. See the GNU Affero PARTICULIER. Consultez la Licence
* General Public License for Générale Publique GNU Affero
* more details. pour plus de détails.
*
* You should have received Vous devriez avoir reçu une
* a copy of the GNU Affero copie de la Licence Générale
* General Public License along Publique GNU Affero avec
* with OpenCADC. If not, see OpenCADC ; si ce n’est
* <http://www.gnu.org/licenses/>. pas le cas, consultez :
* <http://www.gnu.org/licenses/>.
*
* $Revision: 4 $
*
************************************************************************
*/
package ca.nrc.cadc.ac.server.web.users;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
import java.security.AccessControlException;
import java.security.PrivilegedExceptionAction;
import java.util.Collection;
import org.apache.log4j.Logger;
import ca.nrc.cadc.ac.ReaderException;
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import ca.nrc.cadc.ac.User;
import ca.nrc.cadc.ac.UserAlreadyExistsException;
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import ca.nrc.cadc.ac.UserNotFoundException;
import ca.nrc.cadc.ac.UserRequest;
import ca.nrc.cadc.ac.WriterException;
import ca.nrc.cadc.ac.json.JsonUserListWriter;
import ca.nrc.cadc.ac.json.JsonUserReader;
import ca.nrc.cadc.ac.json.JsonUserRequestReader;
import ca.nrc.cadc.ac.json.JsonUserWriter;
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import ca.nrc.cadc.ac.server.UserPersistence;
import ca.nrc.cadc.ac.server.web.SyncOutput;
import ca.nrc.cadc.ac.xml.UserListWriter;
import ca.nrc.cadc.ac.xml.UserReader;
import ca.nrc.cadc.ac.xml.UserRequestReader;
import ca.nrc.cadc.ac.xml.UserWriter;
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import ca.nrc.cadc.net.TransientException;
import ca.nrc.cadc.profiler.Profiler;
public abstract class AbstractUserAction implements PrivilegedExceptionAction<Object>
private static final Logger log = Logger.getLogger(AbstractUserAction.class);
public static final String DEFAULT_CONTENT_TYPE = "text/xml";
public static final String JSON_CONTENT_TYPE = "application/json";
protected boolean isPrivilegedUser;
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protected boolean isPrivilegedSubject;
protected SyncOutput syncOut;
protected UserPersistence userPersistence;
protected String acceptedContentType = DEFAULT_CONTENT_TYPE;
this.isPrivilegedUser = false;
public abstract void doAction() throws Exception;
public void setIsPrivilegedUser(boolean isPrivilegedUser)
this.isPrivilegedUser = isPrivilegedUser;
public boolean isPrivilegedUser()
return this.isPrivilegedUser;
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public void setPrivilegedSubject(final boolean isPrivilegedSubject)
{
this.isPrivilegedSubject = isPrivilegedSubject;
}
public boolean isPrivilegedSubject()
{
return this.isPrivilegedSubject;
}
public void setLogInfo(UserLogInfo logInfo)
public void setSyncOut(SyncOutput syncOut)
this.syncOut = syncOut;
public void setUserPersistence(UserPersistence userPersistence)
{
this.userPersistence = userPersistence;
}
public Object run() throws IOException
Profiler profiler = new Profiler(AbstractUserAction.class);
}
catch (AccessControlException e)
{
log.debug(e.getMessage(), e);
String message = "Permission Denied";
this.logInfo.setMessage(message);
sendError(403, message);
}
catch (IllegalArgumentException e)
{
log.debug(e.getMessage(), e);
String message = e.getMessage();
this.logInfo.setMessage(message);
sendError(400, message);
}
catch (ReaderException e)
{
log.debug(e.getMessage(), e);
String message = e.getMessage();
this.logInfo.setMessage(message);
sendError(400, message);
}
catch (UserNotFoundException e)
{
log.debug(e.getMessage(), e);
String message = "User not found: " + e.getMessage();
this.logInfo.setMessage(message);
sendError(404, message);
}
catch (UserAlreadyExistsException e)
{
log.debug(e.getMessage(), e);
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String message = e.getMessage();
this.logInfo.setMessage(message);
sendError(409, message);
}
catch (UnsupportedOperationException e)
{
log.debug(e.getMessage(), e);
this.logInfo.setMessage("Not yet implemented.");
sendError(501);
}
catch (TransientException e)
{
String message = "Transient Error: " + e.getMessage();
this.logInfo.setSuccess(false);
this.logInfo.setMessage(message);
if (e.getRetryDelay() > 0)
syncOut.setHeader("Retry-After", Integer.toString(e.getRetryDelay()));
log.error(message, e);
sendError(503, message);
}
catch (Throwable t)
{
String message = "Internal Error: " + t.getMessage();
this.logInfo.setSuccess(false);
this.logInfo.setMessage(message);
log.error(message, t);
sendError(500, message);
}
}
private void sendError(int responseCode)
throws IOException
{
sendError(responseCode, null);
}
private void sendError(int responseCode, String message)
{
Profiler profiler = new Profiler(AbstractUserAction.class);
syncOut.setHeader("Content-Type", "text/plain");
if (message != null)
syncOut.getWriter().write(message);
}
catch (IOException e)
{
log.warn("Could not write error message to output stream");
protected void logUserInfo(String userName)
this.logInfo.userName = userName;
public void setAcceptedContentType(final String acceptedContentType)
{
this.acceptedContentType = acceptedContentType;
}
/**
* Read a user request (User pending approval) from the HTTP Request's
* stream.
*
* @param inputStream The Input Stream to read from.
* @return User Request instance.
* @throws IOException Any reading errors.
*/
protected final UserRequest readUserRequest(
final InputStream inputStream) throws ReaderException, IOException
{
Profiler profiler = new Profiler(AbstractUserAction.class);
if (acceptedContentType.equals(DEFAULT_CONTENT_TYPE))
{
UserRequestReader requestReader = new UserRequestReader();
userRequest = requestReader.read(inputStream);
}
else if (acceptedContentType.equals(JSON_CONTENT_TYPE))
{
JsonUserRequestReader requestReader = new JsonUserRequestReader();
userRequest = requestReader.read(inputStream);
}
else
{
// Should never happen.
throw new IOException("Unknown content being asked for: "
+ acceptedContentType);
}
profiler.checkpoint("readUserRequest");
return userRequest;
}
/**
* Read the user from the given stream of marshalled data.
*
* @param inputStream The stream to read in.
* @return User instance, never null.
*
* @throws IOException Any errors in reading the stream.
*/
protected User readUser(final InputStream inputStream)
throws ReaderException, IOException
Profiler profiler = new Profiler(AbstractUserAction.class);
syncOut.setHeader("Content-Type", acceptedContentType);
final User user;
if (acceptedContentType.equals(DEFAULT_CONTENT_TYPE))
{
UserReader userReader = new UserReader();
user = userReader.read(inputStream);
}
else if (acceptedContentType.equals(JSON_CONTENT_TYPE))
{
JsonUserReader userReader = new JsonUserReader();
user = userReader.read(inputStream);
}
else
{
// Should never happen.
throw new IOException("Unknown content being asked for: "
+ acceptedContentType);
}
/**
* Write a user to the response's writer.
*
* @param user The user object to marshall and write out.
* @throws IOException Any writing errors.
*/
protected void writeUser(final User user)
throws WriterException, IOException
{
Profiler profiler = new Profiler(AbstractUserAction.class);
syncOut.setHeader("Content-Type", acceptedContentType);
final Writer writer = syncOut.getWriter();
if (acceptedContentType.equals(DEFAULT_CONTENT_TYPE))
{
UserWriter userWriter = new UserWriter();
userWriter.write(user, writer);
}
else if (acceptedContentType.equals(JSON_CONTENT_TYPE))
{
JsonUserWriter userWriter = new JsonUserWriter();
userWriter.write(user, writer);
}
}
/**
* Write out a Map of users as this Action's specified content type.
*
* @param users The Map of user IDs to names.
*/
protected void writeUsers(final Collection<User> users)
throws WriterException, IOException
Profiler profiler = new Profiler(AbstractUserAction.class);
syncOut.setHeader("Content-Type", acceptedContentType);
final Writer writer = syncOut.getWriter();
if (acceptedContentType.equals(DEFAULT_CONTENT_TYPE))
{
UserListWriter userListWriter = new UserListWriter();
userListWriter.write(users, writer);
}
else if (acceptedContentType.equals(JSON_CONTENT_TYPE))
{
JsonUserListWriter userListWriter = new JsonUserListWriter();
userListWriter.write(users, writer);