I try to add the rampart security to my axis 2 web service using rampart and plain text password which should be extracted from database
what I have made
1.I have stored in a database the hashed value of "bobPW" password and the salt
In my PWCBHandler.java class
•I get the stored in password and salt •I hash pwcb.getPassword() with the stored salt •check if this hashed password is equal to the stored password
But I get null point exception is in these rows
if((pwcb.getIdentifier().equals("bob")) && (passwordforchecking.equals(pasandsalt[0])) )
and
passwordforchecking = hash(pwcb.getPassword(),Base64.decodeBase64(pasandsalt[1]));
But the problem that drives me really mad is that I'm sure that I extract the password and salt from the database because I have tested getdataforchecking in java application and everything is fine
code
p
ublic void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException
{
for (int i = 0; i < callbacks.length; i++)
{
WSPasswordCallback pwcb = (WSPasswordCallback)callbacks[i];
try {
pasandsalt = getdataforChecking();
} catch (ClassNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
passwordforchecking = hash(pwcb.getPassword(),Base64.decodeBase64(pasandsalt[1]));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if((pwcb.getIdentifier().equals("bob")) && (passwordforchecking.equals(pasandsalt[0])) )
{
return;
}
}
}
private static String hash(String password, byte[] salt) throws Exception
{
SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 65536, 256);
return Base64.encodeBase64String(f.generateSecret(spec).getEncoded());
}
public static String[] getdataforChecking() throws ClassNotFoundException
{
String[] arr = new String [2];
Connection conn = null;
Class.forName("org.postgresql.Driver");
try
{
conn = DriverManager.getConnection(
"jdbc:postgresql://localhost:5432/plovdivbizloca",
"postgres", "tan");
}
catch (SQLException ex)
{
ex.printStackTrace();
}
Statement mystmt = null;
String selectQuery = "select * from passwordforservice;";
try
{
mystmt = conn.createStatement();
ResultSet mysr = mystmt.executeQuery(selectQuery);
while (mysr.next())
{
arr[0] = mysr.getString(1);
arr[1]= mysr.getString(2);
}
}
catch (Exception ex)
{
ex.printStackTrace();
}
return arr;
}
}
Here is the complete stacktrace
java.lang.NullPointerException
[ERROR]
java.lang.NullPointerException
at nilo.PWCBHandler.handle(PWCBHandler.java:54)
at org.apache.rampart.TokenCallbackHandler.handle(TokenCallbackHandler.java:98)
at org.apache.ws.security.validate.UsernameTokenValidator.verifyDigestPassword(UsernameTokenValidator.java:168)
at org.apache.ws.security.validate.UsernameTokenValidator.verifyPlaintextPassword(UsernameTokenValidator.java:142)
at org.apache.ws.security.validate.UsernameTokenValidator.validate(UsernameTokenValidator.java:100)
at org.apache.ws.security.processor.UsernameTokenProcessor.handleUsernameToken(UsernameTokenProcessor.java:131)
at org.apache.ws.security.processor.UsernameTokenProcessor.handleToken(UsernameTokenProcessor.java:65)
at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:396)
at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:304)
at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:249)
at org.apache.rampart.RampartEngine.process(RampartEngine.java:149)
at org.apache.rampart.handler.RampartReceiver.invoke(RampartReceiver.java:92)
at org.apache.axis2.engine.Phase.invokeHandler(Phase.java:340)
at org.apache.axis2.engine.Phase.invoke(Phase.java:313)
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:947)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1009)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
at nilo.PWCBHandler.hash(PWCBHandler.java:69)
at nilo.PWCBHandler.handle(PWCBHandler.java:45)
at org.apache.rampart.TokenCallbackHandler.handle(TokenCallbackHandler.java:98)
at org.apache.ws.security.validate.UsernameTokenValidator.verifyDigestPassword(UsernameTokenValidator.java:168)
at org.apache.ws.security.validate.UsernameTokenValidator.verifyPlaintextPassword(UsernameTokenValidator.java:142)
at org.apache.ws.security.validate.UsernameTokenValidator.validate(UsernameTokenValidator.java:100)
at org.apache.ws.security.processor.UsernameTokenProcessor.handleUsernameToken(UsernameTokenProcessor.java:131)
at org.apache.ws.security.processor.UsernameTokenProcessor.handleToken(UsernameTokenProcessor.java:65)
at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:396)
at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:304)
at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:249)
at org.apache.rampart.RampartEngine.process(RampartEngine.java:149)
at org.apache.rampart.handler.RampartReceiver.invoke(RampartReceiver.java:92)
at org.apache.axis2.engine.Phase.invokeHandler(Phase.java:340)
at org.apache.axis2.engine.Phase.invoke(Phase.java:313)
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:947)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1009)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
