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From kayyag...@apache.org
Subject svn commit: r1036348 - /directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/components/KrbError.java
Date Thu, 18 Nov 2010 08:37:12 GMT
Author: kayyagari
Date: Thu Nov 18 08:37:12 2010
New Revision: 1036348

URL: http://svn.apache.org/viewvc?rev=1036348&view=rev
Log:
o class representing the KRB-ERROR ASN.1 structure

Added:
    directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/components/KrbError.java

Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/components/KrbError.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/components/KrbError.java?rev=1036348&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/components/KrbError.java
(added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/components/KrbError.java
Thu Nov 18 08:37:12 2010
@@ -0,0 +1,600 @@
+/*
+ *   Licensed to the Apache Software Foundation (ASF) under one
+ *   or more contributor license agreements.  See the NOTICE file
+ *   distributed with this work for additional information
+ *   regarding copyright ownership.  The ASF licenses this file
+ *   to you under the Apache License, Version 2.0 (the
+ *   "License"); you may not use this file except in compliance
+ *   with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing,
+ *   software distributed under the License is distributed on an
+ *   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *   KIND, either express or implied.  See the License for the
+ *   specific language governing permissions and limitations
+ *   under the License.
+ *
+ */
+
+package org.apache.directory.shared.kerberos.components;
+
+
+import java.nio.BufferOverflowException;
+import java.nio.ByteBuffer;
+
+import org.apache.directory.server.i18n.I18n;
+import org.apache.directory.shared.asn1.AbstractAsn1Object;
+import org.apache.directory.shared.asn1.ber.tlv.TLV;
+import org.apache.directory.shared.asn1.ber.tlv.UniversalTag;
+import org.apache.directory.shared.asn1.ber.tlv.Value;
+import org.apache.directory.shared.asn1.codec.EncoderException;
+import org.apache.directory.shared.kerberos.KerberosConstants;
+import org.apache.directory.shared.kerberos.KerberosTime;
+import org.apache.directory.shared.kerberos.messages.KerberosMessage;
+import org.apache.directory.shared.ldap.util.StringTools;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * Class representing KrbError message
+ * 
+ * KRB-ERROR       ::= [APPLICATION 30] SEQUENCE {
+ *      pvno            [0] INTEGER (5),
+ *      msg-type        [1] INTEGER (30),
+ *      ctime           [2] KerberosTime OPTIONAL,
+ *      cusec           [3] Microseconds OPTIONAL,
+ *      stime           [4] KerberosTime,
+ *      susec           [5] Microseconds,
+ *      error-code      [6] Int32,
+ *      crealm          [7] Realm OPTIONAL,
+ *      cname           [8] PrincipalName OPTIONAL,
+ *      realm           [9] Realm -- service realm --,
+ *      sname           [10] PrincipalName -- service name --,
+ *      e-text          [11] KerberosString OPTIONAL,
+ *      e-data          [12] OCTET STRING OPTIONAL
+ * }
+ *
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class KrbError extends AbstractAsn1Object
+{
+
+    /** The logger */
+    private static final Logger log = LoggerFactory.getLogger( KrbError.class );
+
+    /** Speedup for logs */
+    private static final boolean IS_DEBUG = log.isDebugEnabled();
+
+    /** the kerberos version number, default is 5 */
+    private int pvno = KerberosMessage.PVNO;
+
+    /** the kerberos message type */
+    private int msgType = 30; // default value
+
+    /** the current time of client */
+    private KerberosTime cTime;
+
+    /** microseconds of the client's current time */
+    private int cusec;
+
+    /** current time on the server */
+    private KerberosTime sTime;
+
+    /** microseconds of the server's time */
+    private int susec;
+
+    /** the error code */
+    private int errorCode;
+
+    /** the name of the realm to which the requesting client belongs */
+    private String cRealm;
+
+    /** the client's principal */
+    private PrincipalName cName;
+
+    /** the realm that issued the ticket */
+    private String realm;
+
+    /** the server's principal */
+    private PrincipalName sName;
+
+    /** the error text */
+    private String eText;
+
+    /** the error data */
+    private byte[] eData;
+
+    private transient int pvnoLen;
+    private transient int msgTypeLen;
+    private transient int cTimeLen;
+    private transient int cusecLen;
+    private transient int sTimeLen;
+    private transient int susecLen;
+    private transient int errorCodeLen;
+    private transient int cRealmLen;
+    private transient int cNameLen;
+    private transient int realmLen;
+    private transient int sNameLen;
+    private transient int eTextLen;
+    private transient int eDataLen;
+    private transient int krbErrorSeqLen;
+
+
+    @Override
+    public int computeLength()
+    {
+        pvnoLen = Value.getNbBytes( pvno );
+        pvnoLen = 1 + TLV.getNbBytes( pvnoLen ) + pvnoLen;
+        krbErrorSeqLen = pvnoLen;
+
+        msgTypeLen = Value.getNbBytes( msgType );
+        msgTypeLen = 1 + TLV.getNbBytes( msgTypeLen ) + msgTypeLen;
+        krbErrorSeqLen += msgTypeLen;
+
+        if ( cTime != null )
+        {
+            cTimeLen = cTime.getBytes().length;
+            cTimeLen = 1 + TLV.getNbBytes( cTimeLen ) + cTimeLen;
+            krbErrorSeqLen += cTimeLen;
+        }
+
+        if ( cusec > 0 )
+        {
+            cusecLen = Value.getNbBytes( cusec );
+            cusecLen = 1 + TLV.getNbBytes( cusecLen ) + cusecLen;
+            krbErrorSeqLen += cusecLen;
+        }
+
+        sTimeLen = sTime.getBytes().length;
+        sTimeLen = 1 + TLV.getNbBytes( sTimeLen ) + sTimeLen;
+        krbErrorSeqLen += sTimeLen;
+
+        susecLen = Value.getNbBytes( susec );
+        susecLen = 1 + TLV.getNbBytes( susecLen ) + susecLen;
+        krbErrorSeqLen += susecLen;
+
+        errorCodeLen = Value.getNbBytes( errorCode );
+        errorCodeLen = 1 + TLV.getNbBytes( errorCodeLen ) + errorCodeLen;
+        krbErrorSeqLen += errorCodeLen;
+
+        if ( cRealm != null )
+        {
+            cRealmLen = StringTools.getBytesUtf8( cRealm ).length;
+            cRealmLen = 1 + TLV.getNbBytes( cRealmLen ) + cRealmLen;
+            krbErrorSeqLen += cRealmLen;
+        }
+
+        if ( cName != null )
+        {
+            cNameLen = cName.computeLength();
+            krbErrorSeqLen += cNameLen;
+        }
+
+        realmLen = StringTools.getBytesUtf8( realm ).length;
+        realmLen = 1 + TLV.getNbBytes( realmLen ) + realmLen;
+        krbErrorSeqLen += realmLen;
+
+        sNameLen = sName.computeLength();
+        krbErrorSeqLen += sNameLen;
+
+        if ( eText != null )
+        {
+            eTextLen = StringTools.getBytesUtf8( eText ).length;
+            eTextLen = 1 + TLV.getNbBytes( eTextLen ) + eTextLen;
+            krbErrorSeqLen += eTextLen;
+        }
+
+        if ( eData != null )
+        {
+            eDataLen = 1 + TLV.getNbBytes( eData.length ) + eData.length;
+            krbErrorSeqLen += eDataLen;
+        }
+
+        return 1 + TLV.getNbBytes( krbErrorSeqLen ) + krbErrorSeqLen;
+    }
+
+
+    @Override
+    public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException
+    {
+        if ( buffer == null )
+        {
+            throw new EncoderException( I18n.err( I18n.ERR_148 ) );
+        }
+
+        try
+        {
+            buffer.put( UniversalTag.SEQUENCE.getValue() );
+            buffer.put( TLV.getBytes( krbErrorSeqLen ) );
+
+            //pvno
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_PVNO_TAG );
+            buffer.put( TLV.getBytes( pvnoLen ) );
+            Value.encode( buffer, pvno );
+
+            //msg-type
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_MSGTYPE_TAG );
+            buffer.put( TLV.getBytes( msgTypeLen ) );
+            Value.encode( buffer, msgType );
+
+            //ctime
+            if ( cTimeLen > 0 )
+            {
+                buffer.put( ( byte ) KerberosConstants.KRB_ERR_CTIME_TAG );
+                buffer.put( TLV.getBytes( cTimeLen ) );
+                buffer.put( cTime.getBytes() );
+            }
+
+            //cusec
+            if ( cusec > 0 )
+            {
+                buffer.put( ( byte ) KerberosConstants.KRB_ERR_CUSEC_TAG );
+                buffer.put( TLV.getBytes( cusecLen ) );
+                Value.encode( buffer, cusec );
+            }
+
+            //stime
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_STIME_TAG );
+            buffer.put( TLV.getBytes( sTimeLen ) );
+            buffer.put( sTime.getBytes() );
+
+            //susec
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_SUSEC_TAG );
+            buffer.put( TLV.getBytes( susecLen ) );
+            Value.encode( buffer, susec );
+
+            //error-code
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_ERROR_CODE_TAG );
+            buffer.put( TLV.getBytes( errorCodeLen ) );
+            Value.encode( buffer, errorCode );
+
+            //crealm
+            if ( cRealmLen > 0 )
+            {
+                buffer.put( ( byte ) KerberosConstants.KRB_ERR_CREALM_TAG );
+                buffer.put( TLV.getBytes( cRealmLen ) );
+                Value.encode( buffer, cRealm );
+            }
+
+            //cname
+            if ( cNameLen > 0 )
+            {
+                buffer.put( ( byte ) KerberosConstants.KRB_ERR_CNAME_TAG );
+                buffer.put( TLV.getBytes( cNameLen ) );
+                cName.encode( buffer );
+            }
+
+            //realm
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_REALM_TAG );
+            buffer.put( TLV.getBytes( realmLen ) );
+            Value.encode( buffer, realm );
+
+            //sname
+            buffer.put( ( byte ) KerberosConstants.KRB_ERR_SNAME_TAG );
+            buffer.put( TLV.getBytes( sNameLen ) );
+            sName.encode( buffer );
+
+            //etext
+            if ( eTextLen > 0 )
+            {
+                buffer.put( ( byte ) KerberosConstants.KRB_ERR_ETEXT_TAG );
+                buffer.put( TLV.getBytes( eTextLen ) );
+                Value.encode( buffer, eText );
+            }
+
+            //edata
+            if ( eDataLen > 0 )
+            {
+                buffer.put( ( byte ) KerberosConstants.KRB_ERR_EDATA_TAG );
+                buffer.put( TLV.getBytes( eDataLen ) );
+                buffer.put( eData );
+            }
+        }
+        catch ( BufferOverflowException boe )
+        {
+            log.error( I18n.err( I18n.ERR_734_CANNOT_ENCODE_KRBERROR, 1 + TLV.getNbBytes(
krbErrorSeqLen )
+                + krbErrorSeqLen, buffer.capacity() ) );
+            throw new EncoderException( I18n.err( I18n.ERR_138 ) );
+        }
+
+        if ( IS_DEBUG )
+        {
+            log.debug( "KrbError encoding : {}", StringTools.dumpBytes( buffer.array() )
);
+            log.debug( "KrbError initial value : {}", toString() );
+        }
+
+        return buffer;
+    }
+
+
+    /**
+     * @see Object#toString()
+     */
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+
+        sb.append( "KrbError : {\n" );
+        sb.append( "    pvno: " ).append( pvno ).append( '\n' );
+        sb.append( "    msgType: " ).append( msgType ).append( '\n' );
+
+        if ( cTime != null )
+        {
+            sb.append( "    cTime: " ).append( cTime ).append( '\n' );
+        }
+
+        if ( cusec > 0 )
+        {
+            sb.append( "    cusec: " ).append( cusec ).append( '\n' );
+        }
+
+        sb.append( "    sTime: " ).append( sTime ).append( '\n' );
+        sb.append( "    susec: " ).append( susec ).append( '\n' );
+        sb.append( "    errorCode: " ).append( errorCode ).append( '\n' );
+
+        if ( cRealm != null )
+        {
+            sb.append( "    cRealm: " ).append( cRealm ).append( '\n' );
+        }
+
+        if ( cName != null )
+        {
+            sb.append( "    cName: " ).append( cName ).append( '\n' );
+        }
+
+        sb.append( "    realm: " ).append( realm ).append( '\n' );
+
+        sb.append( "    sName: " ).append( sName ).append( '\n' );
+
+        if ( eText != null )
+        {
+            sb.append( "    eText: " ).append( eText ).append( '\n' );
+        }
+
+        if ( eData != null )
+        {
+            sb.append( "    eData: " ).append( StringTools.dumpBytes( eData ) ).append( '\n'
);
+        }
+
+        sb.append( "}\n" );
+
+        return sb.toString();
+    }
+
+
+    /**
+     * @return the pvno
+     */
+    public int getPvno()
+    {
+        return pvno;
+    }
+
+
+    /**
+     * @param pvno the pvno to set
+     */
+    public void setPvno( int pvno )
+    {
+        this.pvno = pvno;
+    }
+
+
+    /**
+     * @return the msgType
+     */
+    public int getMsgType()
+    {
+        return msgType;
+    }
+
+
+    /**
+     * @param msgType the msgType to set
+     */
+    public void setMsgType( int msgType )
+    {
+        this.msgType = msgType;
+    }
+
+
+    /**
+     * @return the cTime
+     */
+    public KerberosTime getcTime()
+    {
+        return cTime;
+    }
+
+
+    /**
+     * @param cTime the cTime to set
+     */
+    public void setcTime( KerberosTime cTime )
+    {
+        this.cTime = cTime;
+    }
+
+
+    /**
+     * @return the cusec
+     */
+    public int getCusec()
+    {
+        return cusec;
+    }
+
+
+    /**
+     * @param cusec the cusec to set
+     */
+    public void setCusec( int cusec )
+    {
+        this.cusec = cusec;
+    }
+
+
+    /**
+     * @return the sTime
+     */
+    public KerberosTime getsTime()
+    {
+        return sTime;
+    }
+
+
+    /**
+     * @param sTime the sTime to set
+     */
+    public void setsTime( KerberosTime sTime )
+    {
+        this.sTime = sTime;
+    }
+
+
+    /**
+     * @return the susec
+     */
+    public int getSusec()
+    {
+        return susec;
+    }
+
+
+    /**
+     * @param susec the susec to set
+     */
+    public void setSusec( int susec )
+    {
+        this.susec = susec;
+    }
+
+
+    /**
+     * @return the errorCode
+     */
+    public int getErrorCode()
+    {
+        return errorCode;
+    }
+
+
+    /**
+     * @param errorCode the errorCode to set
+     */
+    public void setErrorCode( int errorCode )
+    {
+        this.errorCode = errorCode;
+    }
+
+
+    /**
+     * @return the cRealm
+     */
+    public String getcRealm()
+    {
+        return cRealm;
+    }
+
+
+    /**
+     * @param cRealm the cRealm to set
+     */
+    public void setcRealm( String cRealm )
+    {
+        this.cRealm = cRealm;
+    }
+
+
+    /**
+     * @return the cName
+     */
+    public PrincipalName getcName()
+    {
+        return cName;
+    }
+
+
+    /**
+     * @param cName the cName to set
+     */
+    public void setcName( PrincipalName cName )
+    {
+        this.cName = cName;
+    }
+
+
+    /**
+     * @return the realm
+     */
+    public String getRealm()
+    {
+        return realm;
+    }
+
+
+    /**
+     * @param realm the realm to set
+     */
+    public void setRealm( String realm )
+    {
+        this.realm = realm;
+    }
+
+
+    /**
+     * @return the sName
+     */
+    public PrincipalName getsName()
+    {
+        return sName;
+    }
+
+
+    /**
+     * @param sName the sName to set
+     */
+    public void setsName( PrincipalName sName )
+    {
+        this.sName = sName;
+    }
+
+
+    /**
+     * @return the eText
+     */
+    public String geteText()
+    {
+        return eText;
+    }
+
+
+    /**
+     * @param eText the eText to set
+     */
+    public void seteText( String eText )
+    {
+        this.eText = eText;
+    }
+
+
+    /**
+     * @return the eData
+     */
+    public byte[] geteData()
+    {
+        return eData;
+    }
+
+
+    /**
+     * @param eData the eData to set
+     */
+    public void seteData( byte[] eData )
+    {
+        this.eData = eData;
+    }
+}



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