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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpenLite
//
// Filename: SignonConnection.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 2011-2012 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.jtopenlite;
import java.io.*;
import java.net.*;
import javax.net.ssl.SSLSocketFactory;
/**
* Represents a TCP/IP socket connection to the System i Signon host server (QSYSWRK/QZSOSIGN prestart jobs).
**/
public class SignonConnection extends HostServerConnection //implements Connection
{
/**
* The default TCP/IP port the Signon host server listens on.
* If your system has been configured to use a different port, use
* the {@link PortMapper PortMapper} class to determine the port.
**/
public static final int DEFAULT_SIGNON_SERVER_PORT = 8476;
public static final int DEFAULT_SSL_SIGNON_SERVER_PORT = 9476;
private SignonConnection(SystemInfo info, Socket socket, HostInputStream in, HostOutputStream out, String user)
{
super(info, user, info.getSignonJobName(), socket, in, out);
}
protected void sendEndJobRequest() throws IOException
{
}
/**
* Issues a request to the Signon host server to authenticate the specified user and password.
**/
public void authenticate(String user, String password) throws IOException
{
if (isClosed()) throw new IOException("Connection closed");
Object[] ret = getInfo(true, getInfo().getSystem(), out_, in_);
byte[] clientSeed = (byte[])ret[1];
byte[] serverSeed = (byte[])ret[2];
byte[] userBytes = getUserBytes(user, getInfo().getPasswordLevel());
byte[] passwordBytes = getPasswordBytes(password, getInfo().getPasswordLevel());
password = null;
byte[] encryptedPassword = getEncryptedPassword(userBytes, passwordBytes, clientSeed, serverSeed, getInfo().getPasswordLevel());
// Authenticate.
byte[] userEBCDICBytes = (getInfo().getPasswordLevel() < 2) ? userBytes : getUserBytes(user, 0);
sendSignonInfoRequest(out_, getInfo(), userEBCDICBytes, encryptedPassword);
out_.flush();
int length = in_.readInt();
if (length < 20)
{
throw DataStreamException.badLength("signonInfo", length);
}
in_.skipBytes(16);
int rc = in_.readInt();
int numRead = 24;
try
{
if (rc != 0)
{
String message = "Bad return code from signon info: 0x"+Integer.toHexString(rc);
switch (rc)
{
case 0x20001:
message = "User ID is not known.";
break;
case 0x3000B:
message = "Password is incorrect.";
break;
}
throw new IOException(message);
}
else
{
int serverCCSID = 0;
boolean foundServerCCSID = false;
while (numRead < length && !foundServerCCSID)
{
int ll = in_.readInt();
int cp = in_.readShort();
int currentRead = 0;
switch (cp)
{
case 0x1114:
serverCCSID = in_.readInt();
currentRead = 4;
foundServerCCSID = true;
break;
}
in_.skipBytes(ll-6-currentRead);
numRead += ll;
}
if (foundServerCCSID)
{
getInfo().setServerCCSID(serverCCSID);
}
}
}
finally
{
in_.skipBytes(length-numRead);
in_.end();
}
}
private static Object[] getInfo(boolean doSeeds, String system, HostOutputStream out, HostInputStream in) throws IOException
{
Object[] ret = new Object[3];
final long clientSeedLong = sendSignonExchangeAttributeRequest(out);
if (doSeeds)
{
byte[] clientSeed = Conv.longToByteArray(clientSeedLong);
ret[1] = clientSeed;
}
out.flush();
int length = in.readInt();
if (length < 20)
{
throw DataStreamException.badLength("signonExchangeAttributes", length);
}
in.skipBytes(16);
int rc = in.readInt();
if (rc != 0)
{
in.skipBytes(length-24);
throw DataStreamException.badReturnCode("signonExchangeAttributes", rc);
}
int curLength = 24;
int serverVersion = -1;
boolean foundServerVersion = false;
int serverLevel = -1;
boolean foundServerLevel = false;
boolean foundServerSeed = false;
int passwordLevel = -1;
boolean foundPasswordLevel = false;
String jobName = null;
// while (curLength < length && !foundServerSeed && !foundPasswordLevel && !foundJobName)
while (curLength < length && (!foundServerVersion || !foundServerLevel || !foundPasswordLevel || (!doSeeds || (doSeeds && !foundServerSeed))))
{
int oldLength = curLength;
int ll = in.readInt();
int cp = in.readShort();
curLength += 6;
switch (cp)
{
case 0x1101:
serverVersion = in.readInt();
curLength += 4;
foundServerVersion = true;
break;
case 0x1102:
serverLevel = in.readShort();
curLength += 2;
foundServerLevel = true;
break;
case 0x1103:
if (doSeeds)
{
byte[] serverSeed = new byte[ll-6];
in.readFully(serverSeed);
ret[2] = serverSeed;
curLength += ll-6;
foundServerSeed = true;
}
else
{
in.skipBytes(ll-6);
curLength += ll-6;
}
break;
case 0x1119:
passwordLevel = in.read();
curLength += 1;
foundPasswordLevel = true;
break;
case 0x111F:
in.skipBytes(4); // CCSID is always 0.
curLength += 4;
byte[] jobBytes = new byte[ll-10];
in.readFully(jobBytes);
jobName = Conv.ebcdicByteArrayToString(jobBytes, 0, jobBytes.length);
curLength += ll-10;
break;
default:
in.skipBytes(ll-6);
curLength += ll-6;
break;
}
int diff = ll - (curLength - oldLength);
if (diff > 0)
{
in.skipBytes(diff);
}
}
in.skipBytes(length-curLength);
in.end();
ret[0] = new SystemInfo(system, serverVersion, serverLevel, passwordLevel, jobName);
return ret;
}
/**
* Connects to the Signon host server on the default port and authenticates the specified user.
**/
public static SignonConnection getConnection(String system, String user, String password) throws IOException
{
return getConnection(false, system, user, password);
}
/**
* Connects to the Signon host server on the default port and authenticates the specified user.
**/
public static SignonConnection getConnection(final boolean isSSL, String system, String user, String password) throws IOException
{
return getConnection(isSSL, system, user, password, isSSL? DEFAULT_SSL_SIGNON_SERVER_PORT: DEFAULT_SIGNON_SERVER_PORT);
}
/**
* Connects to the Signon host server on the specified port and authenticates the specified user.
**/
public static SignonConnection getConnection(String system, String user, String password, int signonPort) throws IOException {
return getConnection(false, system, user, password, signonPort);
}
/**
* Connects to the Signon host server on the specified port and authenticates the specified user.
**/
public static SignonConnection getConnection(final boolean isSSL, String system, String user, String password, int signonPort) throws IOException
{
if (signonPort > 0 && signonPort < 65536)
{
Socket signonServer = isSSL? SSLSocketFactory.getDefault().createSocket(system, signonPort) : new Socket(system, signonPort);
InputStream in = signonServer.getInputStream();
OutputStream out = signonServer.getOutputStream();
HostOutputStream dout = new HostOutputStream(new BufferedOutputStream(out));
HostInputStream din = new HostInputStream(new BufferedInputStream(in));
SystemInfo info = (SystemInfo)getInfo(false, system, dout, din)[0];
SignonConnection conn = new SignonConnection(info, signonServer, din, dout, user);
conn.authenticate(user, password);
return conn;
}
else
{
throw new IOException("Bad port number: "+signonPort);
}
}
private static long sendSignonExchangeAttributeRequest(HostOutputStream out) throws IOException
{
out.writeInt(52); // Length;
out.writeShort(0); // Header ID (almost always zero for all datastreams).
out.writeShort(0xE009); // Server ID.
out.writeInt(0); // CS instance.
out.writeInt(0); // Correlation ID.
out.writeShort(0); // Template length.
out.writeShort(0x7003); // ReqRep ID.
out.writeInt(10); // Client version LL.
out.writeShort(0x1101); // Client version CP.
out.writeInt(1); // Client version.
out.writeInt(8); // Client datastream level LL.
out.writeShort(0x1102); // Client datastream level CP.
out.writeShort(2); // Client datastream level.
out.writeInt(14); // Client seed LL.
out.writeShort(0x1103); // Client seed CP.
long clientSeed = System.currentTimeMillis();
out.writeLong(clientSeed); // Client seed.
return clientSeed;
}
private static void sendSignonInfoRequest(HostOutputStream out, SystemInfo info, byte[] userBytes, byte[] encryptedPassword) throws IOException
{
int total = 37 + encryptedPassword.length + 16;
final boolean newerServer = info.getServerLevel() >= 5;
if (newerServer) total += 7;
out.writeInt(total); // Length.
out.writeShort(0); // Header ID (almost always zero for all datastreams).
out.writeShort(0xE009); // Server ID.
out.writeInt(0); // CS instance.
out.writeInt(0); // Correlation ID.
out.writeShort(0x0001); // Template length.
out.writeShort(0x7004); // ReqRep ID.
out.writeByte(encryptedPassword.length == 8 ? 1 : 3); // Password encryption type.
out.writeInt(10); // Client CCSID LL.
out.writeShort(0x1113); // Client CCSID CP.
out.writeInt(1200); // Client CCSID (big endian UTF-16).
out.writeInt(6+encryptedPassword.length); // Password LL.
out.writeShort(0x1105); // Password CP. 0x1115 is other.
out.write(encryptedPassword); // Password.
out.writeInt(16); // User ID LL.
out.writeShort(0x1104); // User ID CP.
out.write(userBytes); // User ID.
if (newerServer)
{
out.writeInt(7); // Return error messages LL.
out.writeShort(0x1128); // Return error messages CP.
out.writeByte(1); // Return error messages.
}
}
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