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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.admin;
import java.security.cert.CertificateException;
import javax.security.auth.Subject;
import org.apache.log4j.Logger;
import ca.nrc.cadc.auth.CertCmdArgUtil;
import ca.nrc.cadc.auth.SSLUtil;
import ca.nrc.cadc.util.ArgumentMap;
/**
* This class parses the command line input arguments.
*/
public class CmdLineParser
{
private static Logger log = Logger.getLogger(CmdLineParser.class);
// no need to proceed further if false
private boolean proceed = true;
private String appName = "";
private AbstractCommand command;
private Subject subject;
/**
* Default constructor.
*/
public CmdLineParser(final String name)
{
this.appName = name;
}
/**
* Return proceed status.
* @return true program should proceed with further processing
* false program should not proceed further
*/
public boolean proceed()
{
return this.proceed;
}
/**
* Get the user admin command to be performed.
* @return user admin command
*/
public AbstractCommand getCommand()
{
return this.command;
}
/**
* Get the subject representing the user executing this user admin tool.
*/
public Subject getSubject()
{
return this.subject;
}
protected boolean isValid(final ArgumentMap am) throws UsageException
{
int levelCount = 0;
int cmdCount = 0;
// only one command is allowed per command line
if (am.isSet("list"))
{
this.command = new List();
cmdCount++;
}
if (am.isSet("list-pending"))
{
this.command = new ListPending();
cmdCount++;
}
String userID = am.getValue("view");
if ((userID != null ) && (!userID.equalsIgnoreCase("true")))
{
this.command = new View(userID);
cmdCount++;
}
userID = am.getValue("reject");
if ((userID != null ) && (!userID.equalsIgnoreCase("true")))
{
this.command = new Reject(userID);
cmdCount++;
}
userID = am.getValue("approve");
if ((userID != null ) && (!userID.equalsIgnoreCase("true")))
{
this.command = new Approve(userID);
cmdCount++;
}
// only one log level is allowed
if (am.isSet("v") || am.isSet("verbose"))
{
levelCount++;
}
if (am.isSet("d") || am.isSet("debug"))
{
levelCount++;
}
if ((cmdCount == 1) && (levelCount <2))
{
return true;
}
else
{
String msg = "";
if (cmdCount > 1)
{
msg = "Only one command can be specified.\n";
}
if (levelCount == 2)
{
msg = "--verbose and --debug are mutually exclusive options\n";
}
throw new UsageException(msg);
}
}
/**
* Parse the command line arguments.
* @param args command line arguments
* @throws UsageException Error in command line
* @throws CertificateException
*/
public void parse(final String[] args) throws UsageException, CertificateException
{
ArgumentMap am = new ArgumentMap( args );
this.proceed = false;
if (!am.isSet("h") && !am.isSet("help") && isValid(am))
{
Subject subject = CertCmdArgUtil.initSubject(am, true);
try
{
SSLUtil.validateSubject(subject, null);
this.subject = subject;
this.proceed = true;
}
catch (CertificateException e)
{
if (am.isSet("list") || am.isSet("list-pending"))
{
// we can use anonymous subject
this.proceed = true;
}
else
{
throw e;
}
}
}
}
/**
* Provide the default command line usage.
*/
public String getUsage()
{
StringBuilder sb = new StringBuilder();
sb.append("\n");
sb.append("Usage: " + this.appName + " <command> [-v|--verbose|-d|--debug] [-h|--help]\n");
sb.append("Where command is\n");
sb.append("--list :list users in the Users tree\n");
sb.append(" :can be executed as an anonymous user\n");
sb.append("--list-pending :list users in the UserRequests tree\n");
sb.append(" :except those with nsaccountlock=true\n");
sb.append(" :can be executed as an anonymous user\n");
sb.append("--view=<userid> :print the entire details of the user\n");
sb.append("--approve=<userid> :delete the user from the UserRequests tree\n");
sb.append(" :by setting nsaccount=true, and insert it to the Users tree\n");
sb.append("--reject=<userid> :delete the user from the UserRequests tree\n");
sb.append("\n");
sb.append("-v|--verbose : Verbose mode print progress and error messages\n");
sb.append("-d|--debug : Debug mode print all the logging messages\n");
sb.append("-h|--help : Print this message and exit\n");
return sb.toString();
}
}