Esempio n. 1
0
 GSSNameImpl(GSSManagerImpl gssManager, GSSNameSpi mechElement) {
   this.gssManager = gssManager;
   appNameStr = printableName = mechElement.toString();
   appNameType = printableNameType = mechElement.getStringNameType();
   this.mechElement = mechElement;
   elements = new HashMap<Oid, GSSNameSpi>(1);
   elements.put(mechElement.getMechanism(), this.mechElement);
 }
Esempio n. 2
0
  /**
   * This method may return false negatives. But if it says two names are equals, then there is some
   * mechanism that authenticates them as the same principal.
   */
  public boolean equals(GSSName other) throws GSSException {

    if (this.isAnonymous() || other.isAnonymous()) return false;

    if (other == this) return true;

    if (!(other instanceof GSSNameImpl))
      return equals(gssManager.createName(other.toString(), other.getStringNameType()));

    /*
     * XXX Do a comparison of the appNameStr/appNameBytes if
     * available. If that fails, then proceed with this test.
     */

    GSSNameImpl that = (GSSNameImpl) other;

    GSSNameSpi myElement = this.mechElement;
    GSSNameSpi element = that.mechElement;

    /*
     * XXX If they are not of the same mechanism type, convert both to
     * Kerberos since it is guaranteed to be present.
     */
    if ((myElement == null) && (element != null)) {
      myElement = this.getElement(element.getMechanism());
    } else if ((myElement != null) && (element == null)) {
      element = that.getElement(myElement.getMechanism());
    }

    if (myElement != null && element != null) {
      return myElement.equals(element);
    }

    if ((this.appNameType != null) && (that.appNameType != null)) {
      if (!this.appNameType.equals(that.appNameType)) {
        return false;
      }
      byte[] myBytes = null;
      byte[] bytes = null;
      try {
        myBytes = (this.appNameStr != null ? this.appNameStr.getBytes("UTF-8") : this.appNameBytes);
        bytes = (that.appNameStr != null ? that.appNameStr.getBytes("UTF-8") : that.appNameBytes);
      } catch (UnsupportedEncodingException e) {
        // Won't happen
      }

      return Arrays.equals(myBytes, bytes);
    }

    return false;
  }
Esempio n. 3
0
  private void init(GSSManagerImpl gssManager, Object appName, Oid appNameType, Oid mech)
      throws GSSException {

    this.gssManager = gssManager;
    this.elements = new HashMap<Oid, GSSNameSpi>(gssManager.getMechs().length);

    if (appName instanceof String) {
      this.appNameStr = (String) appName;
      /*
       * If appNameType is null, then the nametype for this printable
       * string is determined only by interrogating the
       * mechanism. Thus, defer the setting of printableName and
       * printableNameType till later.
       */
      if (appNameType != null) {
        printableName = appNameStr;
        printableNameType = appNameType;
      }
    } else {
      this.appNameBytes = (byte[]) appName;
    }

    this.appNameType = appNameType;

    mechElement = getElement(mech);

    /*
     * printableName will be null if appName was in a byte[] or if
     * appName was in a String but appNameType was null.
     */
    if (printableName == null) {
      printableName = mechElement.toString();
      printableNameType = mechElement.getStringNameType();
    }

    /*
     *  At this point the GSSNameImpl has the following set:
     *   appNameStr or appNameBytes
     *   appNameType (could be null)
     *   printableName
     *   printableNameType
     *   mechElement (which also exists in the hashmap of elements)
     */
  }
Esempio n. 4
0
  /**
   * Returns a flat name representation for this object. The name format is defined in RFC 2743:
   *
   * <pre>
   * Length           Name          Description
   * 2               TOK_ID          Token Identifier
   *                                 For exported name objects, this
   *                                 must be hex 04 01.
   * 2               MECH_OID_LEN    Length of the Mechanism OID
   * MECH_OID_LEN    MECH_OID        Mechanism OID, in DER
   * 4               NAME_LEN        Length of name
   * NAME_LEN        NAME            Exported name; format defined in
   *                                 applicable mechanism draft.
   * </pre>
   *
   * Note that it is not required to canonicalize a name before calling export(). i.e., the name
   * need not be an MN. If it is not an MN, an implementation defined algorithm can be used for
   * choosing the mechanism which should export this name.
   *
   * @return the flat name representation for this object
   * @exception GSSException with major codes NAME_NOT_MN, BAD_NAME, BAD_NAME, FAILURE.
   */
  public byte[] export() throws GSSException {

    if (mechElement == null) {
      /* Use default mech */
      mechElement = getElement(ProviderList.DEFAULT_MECH_OID);
    }

    byte[] mechPortion = mechElement.export();
    byte[] oidBytes = null;
    ObjectIdentifier oid = null;

    try {
      oid = new ObjectIdentifier(mechElement.getMechanism().toString());
    } catch (IOException e) {
      throw new GSSExceptionImpl(GSSException.FAILURE, "Invalid OID String ");
    }
    DerOutputStream dout = new DerOutputStream();
    try {
      dout.putOID(oid);
    } catch (IOException e) {
      throw new GSSExceptionImpl(GSSException.FAILURE, "Could not ASN.1 Encode " + oid.toString());
    }
    oidBytes = dout.toByteArray();

    byte[] retVal = new byte[2 + 2 + oidBytes.length + 4 + mechPortion.length];
    int pos = 0;
    retVal[pos++] = 0x04;
    retVal[pos++] = 0x01;
    retVal[pos++] = (byte) (oidBytes.length >>> 8);
    retVal[pos++] = (byte) oidBytes.length;
    System.arraycopy(oidBytes, 0, retVal, pos, oidBytes.length);
    pos += oidBytes.length;
    retVal[pos++] = (byte) (mechPortion.length >>> 24);
    retVal[pos++] = (byte) (mechPortion.length >>> 16);
    retVal[pos++] = (byte) (mechPortion.length >>> 8);
    retVal[pos++] = (byte) mechPortion.length;
    System.arraycopy(mechPortion, 0, retVal, pos, mechPortion.length);
    return retVal;
  }