src/org/cacert/gigi/ping/DNSPinger.java

   1 package org.cacert.gigi.ping;
   2
   3 import java.util.Arrays;
   4 import java.util.List;
   5
   6 import javax.naming.NamingException;
   7
   8 import org.cacert.gigi.dbObjects.CertificateOwner;
   9 import org.cacert.gigi.dbObjects.Domain;
  10 import org.cacert.gigi.util.DNSUtil;
  11
  12 public class DNSPinger extends DomainPinger {
  13
  14     @Override
  15     public void ping(Domain domain, String expToken, CertificateOwner u, int confId) {
  16         String[] tokenParts = expToken.split(":", 2);
  17         List<String> nameservers;
  18         try {
  19             nameservers = Arrays.asList(DNSUtil.getNSNames(domain.getSuffix()));
  20         } catch (NamingException e) {
  21             enterPingResult(confId, "error", "No authorative nameserver found.", null);
  22             return;
  23         }
  24         StringBuffer result = new StringBuffer();
  25         result.append("failed: ");
  26         boolean failed = nameservers.isEmpty();
  27         nameservers:
  28         for (String NS : nameservers) {
  29             boolean found = false;
  30             try {
  31                 for (String token : DNSUtil.getTXTEntries(tokenParts[0] + "._cacert._auth." + domain.getSuffix(), NS)) {
  32                     if (token.isEmpty()) {
  33                         continue;
  34                     }
  35                     found = true;
  36                     if (token.equals(tokenParts[1])) {
  37                         continue nameservers;
  38                     }
  39                 }
  40             } catch (NamingException e) {
  41                 found = false;
  42             }
  43             result.append(NS);
  44             if (found) {
  45                 result.append(" DIFFER;");
  46             } else {
  47                 result.append(" EMPTY;");
  48             }
  49             failed = true;
  50
  51         }
  52         if ( !failed) {
  53             enterPingResult(confId, PING_SUCCEDED, "", null);
  54         } else {
  55             enterPingResult(confId, "error", result.toString(), null);
  56         }
  57     }
  58 }