jdnssec-tools/src/main/java/com/verisignlabs/dnssec/cl/VerifyZone.java

// Copyright (C) 2011 VeriSign, Inc.
//
// This library 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 2.1 of the License, or (at your option) any later version.
//
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA

package com.verisignlabs.dnssec.cl;

import java.util.List;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.xbill.DNS.Record;

import com.verisignlabs.dnssec.security.ZoneUtils;
import com.verisignlabs.dnssec.security.ZoneVerifier;

/**
 * This class forms the command line implementation of a DNSSEC zone validator.
 * 
 * @author David Blacka
 */
public class VerifyZone extends CLBase
{
  
  private CLIState state;
  
  /**
   * This is a small inner class used to hold all of the command line option
   * state.
   */
  protected static class CLIState extends CLIStateBase
  {
    public String   zonefile    = null;
    public String[] keyfiles    = null;
    public int      startfudge  = 0;
    public int      expirefudge = 0;
    public boolean  ignoreTime  = false;
    public boolean  ignoreDups  = false;

    public CLIState()
    {
      super("jdnssec-verifyzone [..options..] zonefile");
    }

    protected void setupOptions(Options opts)
    {
      OptionBuilder.hasOptionalArg();
      OptionBuilder.withLongOpt("sig-start-fudge");
      OptionBuilder.withArgName("seconds");
      OptionBuilder.withDescription("'fudge' RRSIG inception times by 'seconds' seconds.");
      opts.addOption(OptionBuilder.create('S'));

      OptionBuilder.hasOptionalArg();
      OptionBuilder.withLongOpt("sig-expire-fudge");
      OptionBuilder.withArgName("seconds");
      OptionBuilder.withDescription("'fudge' RRSIG expiration times by 'seconds' seconds.");
      opts.addOption(OptionBuilder.create('E'));

      OptionBuilder.withLongOpt("ignore-time");
      OptionBuilder.withDescription("Ignore RRSIG inception and expiration time errors.");
      opts.addOption(OptionBuilder.create());

      OptionBuilder.withLongOpt("ignore-duplicate-rrs");
      OptionBuilder.withDescription("Ignore duplicate record errors.");
      opts.addOption(OptionBuilder.create());
    }
    
    protected void processOptions(CommandLine cli)
    {
      if (cli.hasOption("ignore-time"))
      {
        ignoreTime = true;
      }

      if (cli.hasOption("ignore-duplicate-rrs"))
      {
        ignoreDups = true;
      }

      String optstr = null;
      if ((optstr = cli.getOptionValue('S')) != null)
      {
        startfudge = parseInt(optstr, 0);
      }

      if ((optstr = cli.getOptionValue('E')) != null)
      {
        expirefudge = parseInt(optstr, 0);
      }

      String[] optstrs = null;
      if ((optstrs = cli.getOptionValues('A')) != null)
      {
        for (int i = 0; i < optstrs.length; i++)
        {
          addArgAlias(optstrs[i]);
        }
      }

      String[] cl_args = cli.getArgs();

      if (cl_args.length < 1)
      {
        System.err.println("error: missing zone file");
        usage();
      }

      zonefile = cl_args[0];

      if (cl_args.length >= 2)
      {
        keyfiles = new String[cl_args.length - 1];
        System.arraycopy(cl_args, 1, keyfiles, 0, keyfiles.length);
      }
    }
  }


  
  public void execute() throws Exception
  {
    ZoneVerifier zoneverifier = new ZoneVerifier();
    zoneverifier.getVerifier().setStartFudge(state.startfudge);
    zoneverifier.getVerifier().setExpireFudge(state.expirefudge);
    zoneverifier.getVerifier().setIgnoreTime(state.ignoreTime);
    zoneverifier.setIgnoreDuplicateRRs(state.ignoreDups);

    List<Record> records = ZoneUtils.readZoneFile(state.zonefile, null);

    log.fine("verifying zone...");
    int errors = zoneverifier.verifyZone(records);
    log.fine("completed verification process.");

    if (errors > 0)
    {
      System.out.println("zone did not verify.");
      System.exit(1);
    }
    else
    {
      System.out.println("zone verified.");
      System.exit(0);
    }
  }

  public static void main(String[] args)
  {
    VerifyZone tool = new VerifyZone();
    tool.state = new CLIState();
    
    tool.run(tool.state, args);
  }
}