package com.aelitis.azureus.core.peermanager.messaging.bittorrent.ltep;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Collections;
import java.util.Map;
import org.gudy.azureus2.core3.util.*;
import com.aelitis.azureus.core.peermanager.messaging.Message;
import com.aelitis.azureus.core.peermanager.messaging.MessageException;
import com.aelitis.azureus.core.peermanager.messaging.MessagingUtil;
public class LTHandshake implements LTMessage {
private Map data_dict;
private byte[] bencoded_data;
private String bencoded_string;
private String description;
private byte version;
private DirectByteBuffer[] buffer_array;
public LTHandshake(Map data_dict, byte version) {
this.data_dict = (data_dict == null) ? Collections.EMPTY_MAP : data_dict;
this.version = version;
}
public Message deserialize(DirectByteBuffer data, byte version) throws MessageException {
if (data == null) {
throw new MessageException( "[" +getID() + "] decode error: data == null");
}
if (data.remaining(DirectByteBuffer.SS_MSG ) < 1) {
throw new MessageException( "[" +getID() + "] decode error: less than 1 byte in payload");
}
// Try decoding the data now.
Map res_data_dict = MessagingUtil.convertBencodedByteStreamToPayload(data, 1, getID());
LTHandshake result = new LTHandshake(res_data_dict, this.version);
return result;
}
public DirectByteBuffer[] getData() {
if (buffer_array == null) {
buffer_array = new DirectByteBuffer[1];
DirectByteBuffer buffer = DirectByteBufferPool.getBuffer(DirectByteBuffer.AL_MSG_LT_HANDSHAKE, getBencodedData().length);
buffer_array[0] = buffer;
buffer.put(DirectByteBuffer.SS_MSG, getBencodedData());
buffer.flip(DirectByteBuffer.SS_MSG);
}
return buffer_array;
}
public void destroy() {
this.data_dict = null;
this.bencoded_data = null;
this.description = null;
if (buffer_array != null) {
buffer_array[0].returnToPool();
}
this.buffer_array = null;
}
public String getDescription() {
if (description == null) {
description = LTMessage.ID_LT_HANDSHAKE.toUpperCase() + ": " + this.getBencodedString();
}
return description;
}
public String getBencodedString() {
if (this.bencoded_string == null) {
try {
this.bencoded_string = new String(this.getBencodedData(), Constants.BYTE_ENCODING);
}
catch (java.io.UnsupportedEncodingException uee) {
this.bencoded_string = "";
Debug.printStackTrace(uee);
}
}
return this.bencoded_string;
}
public byte[] getBencodedData() {
if (this.bencoded_data == null) {
try {this.bencoded_data = BEncoder.encode(this.data_dict);}
catch (java.io.IOException ioe) {
this.bencoded_data = new byte[0];
Debug.printStackTrace(ioe);
}
}
return this.bencoded_data;
}
public Map getDataMap() {
return this.data_dict;
}
public String getClientName() {
byte[] client_name = (byte[])data_dict.get("v");
if (client_name == null) {return null;}
try {return new String(client_name, Constants.DEFAULT_ENCODING);}
catch (java.io.IOException ioe) {return null;}
}
public boolean isUploadOnly() {
Long ulOnly = (Long)data_dict.get("upload_only");
return ulOnly != null && ulOnly.longValue() > 0L;
}
public InetAddress getIPv6() {
byte[] addr = (byte[])data_dict.get("ipv6");
if(addr != null && addr.length == 16)
{
try
{
return InetAddress.getByAddress(addr);
} catch (UnknownHostException e)
{
// should not happen
e.printStackTrace();
}
}
return null;
}
public int getTCPListeningPort()
{
Long port = (Long)data_dict.get("p");
if(port == null)
return 0;
int val = port.intValue();
if(val <= 65535 && val > 0)
return val;
return 0;
}
public Boolean isCryptoRequested()
{
Long crypto = (Long)data_dict.get("e");
if(crypto == null)
return null;
return Boolean.valueOf(crypto.longValue() == 1);
}
public Map getExtensionMapping() {
Map result = (Map)data_dict.get("m");
return (result == null) ? Collections.EMPTY_MAP : result;
}
public String getFeatureID() {return LTMessage.LT_FEATURE_ID;}
public int getFeatureSubID() {return LTMessage.SUBID_LT_HANDSHAKE;}
public String getID() {return LTHandshake.ID_LT_HANDSHAKE;}
public byte[] getIDBytes() {return LTHandshake.ID_LT_HANDSHAKE_BYTES;}
public int getType() {return Message.TYPE_PROTOCOL_PAYLOAD;}
public byte getVersion() {return this.version;}
}